TECHNICAL OFFER
Renovation, modernisation and upup-rating -rating of steam turbine KK-210 -210210-130 -130 (LMZ) 1
Introduction Renovation and modernization of steam turbines type K-210-130 of LMZ design being exploited in !"# Steam turbine type K-200-130 manufactured by “Leningradsky Mechanichesky Zavd! "LMZ# $as pr%ected fr temperature f fresh steam f &'0 ( &'& ) and heated steam f &'& ) at guaranteed service perid f high temperature "*&0 )# parts f 100+000 hurs+ h$ever due t the difficu,ties in bringing the parameters f bi,er euipments t the nrma,+ the turbine is practica,,y e.p,ited at the temperature f &*0 ( &*& )/ his cnditin he,ped in increasing resurces f the basic e,ements f turbines up t 10+000 ( 220+000 hurs/ Many turbines have $rked ut even these resurces/ ecrease in the $rking pressure and temperature as a resu,t f pr,nged e.p,itatin significant,y reduced the peratin efficiency and utput capacity f the p$er statin+ p$er b,cks at many therma, p$er p,ants are being perated at be,$ nmina, parameters f steam and ,ads/ verage parameters f energy b,cks f capacity 200 M4 are5 %$130 ata 0
t
0
% &3& o'
tnn % &3& o'
6n this situatin the heat rate increases+ due t $hich the capacity decreases and cnsumptin f fue, increases/ 6n such cnditins+ a,ng $ith the insta,,atin f ne$ p$er capacities+ it becmes mre imprtant t take measures t restre generating capacities and increase the efficiency f the e.isting p$er euipments/ 6n rder t restre the $rking capacities f the p$er euipments sme cmpnents and parts ",d and utdated# are rep,aced r a cmp,e. f repairing-restratin $rks are carried ut/ fter such recnstructin f $rking p$er b,cks+ initia, parameters are partia,,y restred+ but sti,, they remain ,ess cmpatib,e as cmpare t the ne$ b,cks+ deve,ped in ,ast fe$ years using the resu,ts f ne$ aerdynamics researches/ 7esides this+ tday the cnditins in $hich the turbines are being e.p,ited are changed cnsiderab,y+ especia,,y $hen maneuverabi,ity is cncerned/ herefre rep,acements f $ear ut parts and cmpnents f turbines must be carried ut taking in t cnsideratin the genera, increase in the re,iabi,ity+ efficiency and maneuverabi,ity/ (o a)*ieve t*is goal it is ne)essary to+ -
-
manufacture deve,ped parts and cmpnents nt as per ,d dra$ings+ but as per ne$ dra$ings+ $hich ref,ect mdern standards and characteristics f deve,pments in p$er engineering8 rep,ace sme parts and cmpnents f turbines+ as $e,, as the cy,inders in assemb,ies/
2
6ndia has ,arge f,eet f LMZ designed turbines 9 K-200-130 " designed capacity 200 M4 # and K-210130 " designed capacity 210 M4 #/ 6n the prcess f ,ng term e.p,itatin f turbine euipment and due t varius ther factrs and nn-f,,$ing f certain reuirements "regu,ar mnitring+ diagnsis+ ua,ity repair-$rks etc/# actua, cnditin f the euipment s,$,y gets deterirated+ pr%ected characteristics and ua,ity parameters get $rsen and the capacity f turbine s,$,y fa,,s d$n by appr.imate,y :-10;/ Mderni
M bureau f p$er machinery manufacturing p,ants have been engaged in successfu,,y s,ving such prb,ems/ 4e have carefu,,y studied the avai,ab,e infrmatin n LMZ made and designed turbine euipment present,y being e.p,ited in 6ndia/ ?ur turbine specia,ists+ $h have very ,ng e.perience in designing these same turbines at LMZ factry and in setting up their manufacturing in 6ndia+ have s,utins t mst f the prb,ems cnnected $ith the e.p,itatin f these turbines in 6ndia/
Restoration and upup-rating -rating of designed capacit of turbine !o"utions b #tomenergomas$ #tomenergomas$ %M &o'er &vt Ltd •
Restoration of turbine )apa)ity 5 his prcess is aimed at bringing the e.isting
capacity f turbine t the nmina,+ designed capacity f turbine/ Mderni
,p-rating of t*e )apa)ity 5 his prcess is aimed at increasing the nmina,+ designed
capacity f the turbine by mre mdern ne/ by recnstructin r mderni
3
Modernization and re)onstru)tion of parts and )omponents of turbine K-210-130 LMZ. for energy/ better and reliable fun)tioning of t urbine
asi) te)*ni)al solutions
=ecnstructin f turbine type K-210-130 is carried ut $ith an aim t imprve the technica,-ecnmica, perfrmance "re,iabi,ity+ efficiency and maneuverabi,ity # and mra, renvatin f the turbine/ 6n the mderni
Bressure side f the b,ade
=areficatin side
ig 1 Line f f,uid f,$ n the surface f n<<,e vane
6n 200 simi,ar $rks $ere carried ut n varius LMZ turbines/ uring these $rks $e cu,d revea, hidden reserves f efficiency f f,$ part f turbines and $e cu,d imp,ement such cnstructina, and designing deve,pments+ $hich enab,e t use these reserves/ Er e.amp,e+ in AB) f turbine K-33023/& the interna, re,ative efficiency cefficient $as increased t :'/;/
4
ig 2
istributin f Mach numbers in the average crss sectin f n<<,e array
< Bressure side
=areficatin side
ig 3 Line f f,uid f,$ n the surface f $rking b,ade
ig
istributin f Mach numbers in the average crss sectin f $rking b,ade 5
7efre mderni
fter mderni
ig & E,$ in $rking array/
)mputatin f sagging diaphragm ig 4 Strength ana,ysis
4e a,s ffer t imp,ement such prven imprvements in the cnstructin f the turbine+ $hich $u,d significant,y imprve the maneuvering characteristics f the turbine and reduce damaging f b,ading apparatus during the ,ng time e.p,itatin f the turbine/ hese methds f recnstructin are tried ut n number f turbines f different types+ $hich are being e.p,ited in varius regins f =ussia and ther cuntries+ and guarantee the c,aimed resu,ts/
6
Modernization of 5ig* $ressure 'ylinder Modernization of flo6 passage in 5ig* $ressure 'ylinder 5$'. in)ludes follo6ing measures+ • •
•
•
=ep,acement f n<<,e diaphragm f AB) by ne$ mderni
'*ara)teristi) signifi)an)e of modernized blading apparatus of ne6 generation is t*e )onsiderably *ig*er gas-dynami) perfe)tion of t*e flo6 passage/ 6*i)* 6ill be a)*ieved by + •
•
•
•
•
?ptimi
ig 7 Duide b,ades f 'th stage
7
• •
•
•
?ptimi
ig 8 Mving b,ades f 'th stage/
• •
)arrying ut variab,e tangentia, heaps a,ng height directing b,ades fr reducing secndary ,ss8 )arrying ut specia, t$isting f mving b,ades in rt and periphera, area t reduce end ,ss/
Modernization of )ontrol valves of 5ig* $ressure 'ylinder 5$'. !e6 and proved te)*nologies and t*eir effe)tiveness
6n the prcess f ,ng time e.p,itatin f steam turbines+ many prb,ems are nticed+ $hich are cnnected $ith insufficient re,iabi,ity+ fast $ear-ut f the turbine and ,imited service ,ife f parts and cmpnents turbine euipment/ Many have been studied in and deepcmpnents/ and $e have his s,utins fr them in the f frm f mderni
8
Modernization of 9team distribution system of turbine +
6n the cnstructin f stp+ gate va,ves and mu,tipurpse va,ves there are $eak p,aces+ $hich significant,y affect their $rking + perating ,ife and perfrmance ua,ity/ Er e.amp,e5
ig : •
•
•
•
•
•
)ntr, va,ve befre mderni
Date f the va,ve " disk f the va,ve# is situated in the cnditin f irregu,ar steam f,$ f high parameters and is nt prtected frm vibratins and $ear-ut f guide surfaces8 Shaft "stem# is a part $hich is under intensive ,ad+ mrever+ this ,ad varies in magnitude as $e,, as in character/ ?ften+ breakage f the shaft "a,ng h,,$ chamfer r thread r a,ng sea, grves# causes stppage f the turbine8 he cnnectins made $ith the he,p f threads+ $hich a,$ays remain in the steam <ne+ after ,ng e.p,itatin becme nn-separab,e8 6n many utdated cnstructins pistn rings are used t prvide steam discharge/ hese rings get deterirated fast and cause b,ckage f the va,ves8 Leakage f steam a,ng the gap bet$een the shaft "stem# and %urna, b. is the reasn due t $hich the efficiency cefficient f turbine decreases+ because the steam+ passing thrugh the suctin tubes gets int the heaters+ $here it is used $ith very ,$ efficiency8 ?verhau,ing and repair $rks f such va,ves prved t be very difficu,t and ,abrius because f difficu,ty in the rep,acement f ,ng %urna, b.8
9
•
•
ue t the presence f steam suctin pipe,ines frm ,abyrinth sea,s it becmes necessary t service the pipe,ines during insta,,atin+ revisin f va,ves "cutting 9$e,ding 9 cntr, f seam r %int- pressure testing 9 reprting n cntr,#+ restratin f therma, is,atin/ ,s+ the pssibi,ity f interchangeabi,ity f the va,ves is e.c,uded due t the rientatin f the cnnecting branches f suctin piping8 ue t the steaming f ,abyrinth sea,s and hang-up f va,ves due t “gr$th! f cast-irn+ turbineHs efficiency decreases+ steam starts ,eaking frm the va,ve int atmsphere and drive mechanisms gets heated/ ir starts getting int vacuum system+ gap bet$een %urna,-b. and stem gets c,gged and becmes necessary t have deve,ped circuit f piping system fr suctin f steam frm theit va,ves/
Er successfu, s,utin f a,, these prb,ems $e suggest t mderni
Modernization and re)onstru)tion of )ontrol valve $rote)ted by $atent !o 2218 and 22333 . (*e modernization of )ontrol valves i n)ludes+ •
•
•
Sp,ined %int f va,ve disc $ith shaft "stem#+ $hich $i,, make pssib,e t dismant,e and assemb,e va,ve %ust in fe$ secnds $ithut using any instruments8 he disc f va,ve is prtected frm effect f steam f,$ by %urna,-b.+ and %urna,-b. by specia, prtective husing/ Latera, and trsin impacts f disc+ being created as a resu,t f irregu,ar steam f,$+ d nt pass ver t the shaft "stem#8 Super sea,s f shaft sea,thetheheaters+ gap bet$een stemb,ading and %urna,-b.+ in this airtight case the steam+ ear,ier"stem# used cmp,ete,y t enter int $rks the n the apparatus and additina,,y prduce frm 3&0 t 00 K4 $ithut additina, cnsumptin f the fue,/ 6n case f turbine K-200G210-130 LMZ increase in the capacity is appr.imate,y 3'0 k4h $hich gives an euiva,ent ecnmy up t C&0 t euiva,ent fue, per year8
ig 10/
Super-airtight sea, " $#(;!( !o 223:112 #
10
•
•
•
Simp,icity f cnstructin and minimum use f spare parts increase the maintainabi,ity and minimi
ig 11
)ast-irn driving c,umn
“Dr$th! f grey cast-irn is cnnected $ith disintegratin f ferric carbide+ uantity and si
ig 12
)rack in the cast-irn frame due t “gr$th!/ 11
Stee, c,umns $ith app,icatin f chrme-m,ybdenum stee, are abs,ute,y re,iab,e and durab,e "Eig/ 13#/ 6n rder t avid scratches+ in pair $ith frictin bet$een frame and casing+ guide bushings $ith surface hardening+ fr e.amp,e nitriding+ are used/
ig 13 Ie$ stee, c,umn/
Modernization and re)onstru)tion of )ontrol valves gives follo6ing results + • • • • • • • • • • •
=e,iabi,ity f va,ves increases cnsiderab,y8 @,iminatin f vibratins f va,ves8 ecrease in the $ear-ut and breakage f the parts8 6ncrease in the maintainabi,ity f the va,ves8 Bssibi,ity f preventive maintenance and cntr, f a,, va,ve parts8 Fnificatin f parts+ $hich cuts the number f spare parts8 =eductin in the number f stpping f turbine and cnsumptin f fue,8 6ncrease in the efficiency f the turbine8 ismant,ing f steam suctin system frm the va,ves8 6s,atin f vacuum system frm in,et f air frm va,ves8 Bssibi,ity f rep,acement f va,ves $ith cvers "identica, $ith spare r frm reserve turbine/
12
ig 1
)ntr, va,ve after mderni
Referen)es +
Mre than *&0 va,ves+ $ith super- airtight sea,s have been successfu,,y insta,,ed n varius LMZ turbines+ $hich have fu,,y prved abve resu,ts/ Ee$ f them 5 !o
$o6er 9tation
(urbine type
1 2 3
)heripvetsk State =egina, B$er Statin ,kh,ma herma, B$er Statin Sredne-Fra,s BB
K-200-130 LMZ K-2&&-1'2 LMZ K-300-2*0-1 LMZ
=y
K-300-2*0-1 LMZ
&
Luk,mskaya State =egina, B$er Statin
K-300-2*0-1 LMZ
4 7 8 : 10
Minsk BS -& " 7e,russia# Lithuania =egina, B$er Statin "Lithuania# Mintia eva BS Maritsa-Jstk BS "7u,garia# Kirishskaya State =egina, B$er Statin
K-330-2*0 LMZ K-300-2*0-1 LMZ K-2&&-130 LMZ K-1'&-130 LMZ K-300-2*0-1 LMZ
,nit !o of turbine
=uantity of valves
3 1 10 C * 1 3 2 1 2 3 * & '
200' 2001 02- 200* 200' 0-200& 10-200& 200' 200' 11-1CCC 0'-2000 03-2003 0&-2002 11-2003 02-2003 0*-200*
* *
: 1 &
0*-2001 2000 200' 2003 2002 200* 200& 200'
* * : 2
1 and 2 3 * 1 and '
13
Re)onstru)tion and modernization of front seal of 5$' Re)onstru)ted and modernized front seal of 5$' $rote)ted by $atent $atent !o 2184::2.
his sea, "Eig/ 1&# is insta,,ed frm the side f steam in,et fr fresh steam int AB) r fr intermediate heating int 6B)/
6 - Eeeding f sea,ing steam 66 9 Suctin f steam-air mi.ture ig 1& Standard sea,
Reasons for modernization of front seal of 5$' + •
• •
•
• • •
•
Bresence high temperature "*&0? 9 &00? )# in the regin f sea, chamber and big temperature f,uctuatin "abve 1&0? )# n e,ements and casings f heat chamber+ due t $ear-ut f sea,s f races I/ 1+ I/ 2 and I/ 3/ istrtin f casing f sea, chamber/ 6ntensified $ear-ut f sea, rings and increase in the radia, gaps due t distrtin f heating chamberfand casings/ Eeeding sea,ing steam and suctin f steam-air mi.ture is carried ut asymmetrica,,y+ i/e/ n,y in the ,$er ha,f/ Bresence f e,astic ring/ )asing parts are made f stee, grade 2&+ )3/ 7,ank f cmpensatr is $e,ded f r,,ed meta,/ Lens f cmpensatr is made f tube and has crss-,ine seam/ 4eak fitting f hri<nta, and vertica, cnnectrs "up t M20#+ made f stee, grade 20 and 2&/ 14
Resulting in + •
• • • • •
istrtin and residua, defrmatin f parts f frnt sea,5 f sea, chamber+ cmpensatr and casings f sea, chamber/ Steaming f sea,/ 4atering f i,/ ppearance f thrugh cracks n the ,ens f cmpensatr in the regin f crss-,ine seam/ ?pening f hri<nta, and vertica, cnnectrs/ L$ maintainabi,ity/
6n rder t s,ve these prb,ems $e ffer t insta,, recnstructed frnt sea, f AB)/ Re)onstru)ted and modernized seal *as follo6ing )onstru)tional distin)tions +
•
bsence f e,astic ring/ Separate casing fr sea, chamber and separate races fr sea,s/ )asing and races are made f frging and f a,,yed stee,/ Eastener fr vertica, and hri<nta, cnnectrs+ sckets is increased in strength by 2-3 times/ Eeeding f c,ing steam bet$een heat chamber and race I/ 3 is carried ut thrugh sprayers/ his prvides decrease in steam temperature befre sea, chamber up t 300? - 3:0? )/ Eeeding f sea,ing steam and suctin f steam-air mi.ture is carried ut symmetrica,,y+ i/e/ frm tp and frm bttm/ 6t becmes pssib,e t rep,ace three sea, rings $ithut pening the cy,inder instead f t$ as in
•
regu,ar+ standard cnstructin/ reduce temperature f,uctuatin a heat-prtective screen is insta,,ed n the race I/ 3/
• • • • •
•
$ositive results obtained after installation of re)onstru)ted front seal of 5$' + • • • • •
=estratin f $rkabi,ity and efficiency f sea,/ @,iminatin f residua, defrmatin and distrtin f casing parts/ =eductin in $ear-ut f sea, rings/ @,iminatin f steaming f sea,/ @,iminatin f $atering f i,/
nd+ as a resu,t+ increased re,iabi,ity+ maintainabi,ity and efficiency f the turbine/
15
6 - Eeeding f sea,ing steam 66 9 Suctin f steam-air mi.ture ig 14 =ecnstructed frnt sea, f AB)
Referen)es+
=ecnstructed and mderni
!o
!ame of t*e $o6er 9tation
(urbine type
1
“Jarna! herma, B$er Statin+ 7u,garia
K-200-130 LMZ
2
“ Maritsa-Jstk! herma, B$er Statin+ 7u,garia “ 7bv-,! herma, B$er Statin+ 7u,garia Zainskaya State =egina, B$er Statin+ =ussia
K-21&-130 LMZ K-200-130 LMZ K-200-130 LMZ
&
Knakvskaya State =egina, B$er statin+ =ussia
K-300-2*0 LMZ
4
Litvskaya State =egina, B$er Statin+ Lithuania
K-300-2*0 LMZ
3
,nit !o
3 * 1 ' &
2003 200& 200& 2003 2003
2
2003
3 * & 10 12 1 3 : &
1CCC 2000 2002 2001 200& 2002 1CCC 1CCC 2000 2001 2003 1CC: 200*
'
'onta)t person and details(el !o
6vanv / + irectr e,/ "3&C2# :*3&:2 6vanv / + irectr e,/ "3&C2# :*3&:2 6vanv / + irectr e,/ "3&C2# :*3&:2 J,yakv J/ I/ )hief @ngineer ":&&&:# C'3&1
Me,nikv / J/ ech/ irectr "*:2*2# *-31-3* Myakas v/+ )hief @ngineer "30&2:# 3320:
16
Re)onstru)tion of seal )*amber of ;nd 9eal of 5$' $rote)ted by $atent $atent !o 228:&2.
4e bserve f,,$ing prb,ems in the functining f sea, chamber f end sea, f AB) 5 • • • •
istrtin and residua, defrmatin f the sea, chamber/ Steaming f sea,/ 4atering f i,/ L$er maintainabi,ity/
ig 17
Standard cnstructin f heat chamber f AB)
Reasons + • •
• • • •
Aigh temperature and temperature f,uctuatin "up t 100 ? )# in the parts f the sea, chamber/ 6ntensive $ear-ut f the sea, rings and en,arging f radia, gaps due t distrtin f sea, chamber/ )asing parts are made f Stee, grade 2& and )3/ 4eak fastener f hri<nta, and vertica, cnnectrs "up t M20#/ 4a,,s and partitins have thickness f 1& mm+ height f f,anges 20-2& mm/ Eeeding f sea,ing steam and suctin f steam-air mi.ture are carried ut n,y frm the bttm+ i/e/ asymmetrica,,y/
9olution to t*is problem is to re)onstru)t t*e seal )*amber >e offer to install modernized and re)onstru)ted seal )*amber of end seal of t*e 5$' (*e main features of t*is re)onstru)tion + • •
• •
Sea, chamber and races are made f stee, frging 20M/ Easteners f hri<nta, and vertica, cnnectrs are strengthened by 2-3 times and are made f high-a,,y stee,/ Aeight f f,anges is *0-&0 mm/ Eeeding f sea,ing steam and suctin f steam-air mi.ture is carried ut symmetrica,,y+ i/e/ frm the tp and frm the bttm/ 17
ig 18/
=ecnstructed sea, chamber f AB)
ollo6ing positive results *ave been obtained from su))essfully installed/ re)onstru)ted seal )*ambers of end seal of t*e 5$' on more t*an 20 turbines+ • • • • •
@,iminatin f residua, defrmatin and distrtin f the casing parts/ =eductin in the $ear-ut f the sea, rings/ @,iminatin f steaming f sea,/ @,iminatin f $atering f i,/ 6ncrease in the maintainabi,ity/
Referen)es + !o
!ame of t*e $o6er 9tation
(urbine type
1
Zainskaya State =egina, B$er Statin+ =ussia
K-200-130 LMZ
2
Knakvskaya State =egina, B$er statin+ =ussia
K-300-2*0 LMZ
3
Litvskaya State =egina, B$er Statin+ Lithuania Karmanvsk State =egina, B$er Statin+ 7ashkiria
K-300-2*0 LMZ K-300-2*0 LMZ
'
Ji,nus herma, B$er Statin+ Latvia F
-1:0-130
1 2 3 2 3
& 4 7
K-&0-C0-2 -100-130
,nit !o
3 * & 10 1 3 : &
1CCC 2000 2002 2001 2002 1CCC 1CCC 2000 2001 2003 1CC: 200* 200' 2001 2003 200' 200& 200* 200*
'onta)t person and details-(el !o
J,yakv J/ I/ )hief @ngineer ":&&&:# C'3&1 Me,nikv / J/ ech/ irectr "*:2*2# *-31-3* Myakas v/+ )hief @ngineer "30&2:# 3320: Ja,eev =/ F/ )hief @ngineer "3*13# &*310 7urinski M/ ech/ irectr "30&2# 3320: Dumenuk / J/ )hief @ngineer+ "3:*-10#3-03'0 Jrnv @/?/ eputy )hief @ngineer "3&1# &0'03*:
18
'asing of )ontrol stage Re)onstru)tion of s*roud seal of )ontrol stage of single ro6 +
)asing+ $hich ,imits the ,eakage f steam thrugh the shrud is used as shrud sea, f cntr,,ing stage/ here are number f reasns+ negative,y affecting the $rking f casing 5 •
•
• • •
Bresence f strng disturbing frces and uneven steam f,$ arund and in a.ia, directin due t n<<,e steam distributin8 bsence f a.ia, f,uctuatin f pressure n the casing "ba,anced casing# + $hich presses the casing t the thrust face f cunterbre under the crest f the casing8 Sma,, $eight f the casing " due t $hich it easi,y s$ings and shakes in disturbing frces #8 4eak fittings and e,ements fr fi.ing casing t the cy,inder8 )asing has dub,e supprting system "t$ s,eeves#/
ue t a,, these factrs the casing gets damaged+ the sitting gets destryed and shrud sea, gets damaged/ )asing e,ements drp in t the f,$ passage hence damaging it/ @fficiency drps by 0/1; due t the damage r absence f shrud sea,/ S,utin t these prb,ems is recnstructin f casing/
ig 1: @.isting standard cnstructin f shrud sea, f cntr,,ing stage f AB)
6n the recnstructed sea, t$ casings are %ined tgether in ne part/ s a resu,t 9 e,iminatin f damage t the casing and shrud sea, f cntr, stage and increased ,eakages f high,y ptentia, steam thrugh shrud/ Bsitive effect 5 increase in the efficiency+ re,iabi,ity and maintainabi,ity/
19
ig 20 =ecnstructed %ined casing f diaphragm n/ 1
Referen)es + Re)onstru)ted s*roud seals *ave been su))essfully installed on number of turbines e6 of t*em+ !o
!ame of $o6er 9tation
(urbine type
1
Zainskaya State =egina, B$er Statin+ =ussia
K-200-130 LMZ
Litvskaya State =egina, B$er Statin+ Lithuania =y
K-300-2*0 LMZ K-300-2*0 LMZ
Kirishskaya State =egina, B$er Statin
K-300-2*0 LMZ
&
Knakvskaya State =egina, B$er statin+ =ussia
K-300-2*0 LMZ
4
Dme,sk BS-2 7ye,russia
-1:0G210-130
Kstrma State =egina, B$er Statin
K-300-2*0 LMZ
2 3
7
,nit
200' ' & 1 *
' 1 3 :
1CCC 200* 2002 2003 200& 200* 200* 200& 200' 1CCC 2000 2001 2003
3
200*
1 3 & :
1CC: 1CCC 2000 2001
'onta)t details (el no
J,yakv J/ I/ )hief @ngineer ":&&&:# C'3&1 Myakas v/+ )hief @ngineer "0303:# 3320: Duri,yv ?/N/ )hief engineer "0C1*1#2-&-31 Betrankv J/6/ )hief @ngineer ":13':# C33&C# Me,nikv / J/ ech/ irectr "*:2*2# *-31-3* Leshkevich N// )hief @ngineer "3&323#*C1'&1 Ia
Modernization of ntermediate $r essure 'ylinder $' . ?n $' 6e offer to )arry out follo6ing modernization of flo6 passage + • •
•
•
=ep,acement f guide apparatus f 6B) by ne$ mderni
20
mportant feature of modernized blading of ne6 generation is t*e more *ig*er effi)ien)y and maximum gas-dynami) perfe)tion of t*e flo6 passage/ 6*i)* are a)*ieved by + •
• • • •
•
•
)hanging f,$ capacity f guide apparatus and f first cmpartment f the 6B) t prvide acceptab,e pressure in the duct f intermediate heating f bi,er8 )mp,e. ptimi
Modernization and re)onstru)tion of front seal of $' $rote)ted by $atent $atent !o 2184::2. Reasons for re)onstru)tion of existing front seal of $' + •
• •
•
• • •
•
Bresence high temperature "*&0? 9 &00? )# in the regin f sea, chamber and $ide temperature f,uctuatin "abve 1&0? )# n e,ements and casings f sea, chamber/ istrtin f casing f heating chamber/ 6ntensified $ear-ut f sea, rings and increase in the radia, gaps due t distrtin f heating chamber and casings/ Eeeding f sea,ing steam and suctin f steam-air mi.ture is carried ut asymmetrica,,y+ i/e/ n,y in the ,$er ha,f/ Bresence f e,astic ring/ )asing parts are made f stee, grade 2&+ )3/ 7,ank f cmpensatr is $e,ded f r,,ed meta,/ Lens f cmpensatr is made f tube and has crss-,ine seam/ 4eak fitting f hri<nta, and vertica, cnnectrs "up t M20#+ made f stee, grade 20 and 2&/ Resulting in +
•
• • • •
istrtin and residua, defrmatin f parts f frnt sea, "sea, chamber+ cmpensatr and races f sea, chamber#/ Steaming f sea, and $atering f i,/ ppearance f thrugh cracks n the ,ens f cmpensatr in the regin f crss-,ine seam/ ?pening f hri<nta, and vertica, cnnectrs/ L$er maintainabi,ity/
21
ig 21 Standard+ regu,ar cnstructin f frnt sea, f 6B)
6n rder t s,ve these prb,ems $e ffer t insta,, recnstructed frnt sea, f 6B)/ n t*e re)onstru)ted front seal of $' + • • •
• •
•
• •
here is n e,astic ring/ Sea, chamber is divided in t casing f sea, chamber and separate races f sea,/ here is a pssibi,ity t rep,ace three sea, rings $ithut pening the cver f the cy,inder instead f t$ as in the e.isting situatin/ )asing and races are made f frged and f a,,y stee,/ Easteners f hri<nta, and vertica, cnnectrs are strengthened by 2-3 times and are made f high-a,,y stee,/ Eeeding f c,ing steam bet$een sea, chamber and race I/ 2 is carried ut thrugh in%ectrs/ his prvides reductin in steam temperature befre heat chamber up t 300? 9 3:0? )/ heat prtective screen is munted n the race I/2 t reduce the temperature f,uctuatin/ Eeeding f sea,ing steam and suctin f steam-air mi.ture is carried ut symmetrica,,y+ i/e/ frm the tp and frm the bttm/
ig 22 =ecnstructed frnt sea, f 6B)
22
(*ese re)onstru)ted front seals of $' are installed on more t*an 0 turbines and t*ey are proved to be very effi)ient ollo6ing are t*e positive results of implementation of re)onstru)ted front seal of $' + • • •
• • •
=estratin f $rkabi,ity and efficiency f sea,/ @,iminatin f residua, defrmatin and distrtin f casing parts/ Bssibi,ity t rep,ace three sea, rings $ithut pening the cver f the cy,inder instead f t$ as in the e.isting situatin/ =eductin in $ear-ut f sea, rings/ @,iminatin f steaming f sea,/ @,iminatin f $atering f i,/
nd+ as a resu,t+ increased re,iabi,ity+ maintainabi,ity and efficiency f turbine/
ig 23 =ecnstructed frnt sea, f 6B)
Referen)es + !o
!ame of $o6er 9tation
(urbine type
1
“Jarna! herma, B$er Statin+ 7u,garia
K-200-130 LMZ
2
“ Maritsa-Jstk! herma, B$er Statin+ 7u,garia
K-21&-130 LMZ
3
“ 7bv-,! herma, B$er Statin+ 7u,garia
Zainskaya State =egina, B$er Statin+ =ussia
,nit
'onta)t details (el no
3 * 1 ' &
2003 200& 200&
6vanv / + irectr e,/ "3&C2# :*3&:2
2003
6vanv / + irectr e,/ "3&C2# :*3&:2
K-200-130 LMZ
2
2003
6vanv / + irectr e,/ "3&C2# :*3&:2
K-200-130 LMZ
3 * & 10 12
1CCC 2000 2002 2001 200& 2002
J,yakv J/ I/ )hief @ngineer ":&&&:# C'3&1
23
&
Knakvskaya State =egina, B$er statin+ =ussia
K-300-2*0 LMZ
1 3 : &
4
Litvskaya State =egina, B$er Statin+ Lithuania =y
K-300-2*0 LMZ K-300-2*0 LMZ K-300-2*0 LMZ
'
M,davskaya State =egina, B$er Statin+ M,dvia Kirishskaya State =egina, B$er Statin
K-200-130 LMZ K-300-2*0 LMZ
7 8 : 10
1CCC 1CCC 2000 2001 2003 1CCC 200* 2003 200' 200&
'
200* 200&
Me,nikv / J/ ech/ irectr "*:2*2# *-31-3* Myakas v/+ )hief @ngineer "0303:# 3320: 7urinski M/ ech/ irectr "30&2# ''3'2 Smirnv K/6/ eputy )hief @ngineer "0C''C#'3-*0C Siskv S// Denera, irectr "33-&&C# C3&C Betrankv J/6/ )hief @ngineer ":13':# C33&C#
Re)onstru)tion of s*roud seal of 1st stage of $' 6it* intermediate *eating of steam $rote)ted by $atent $atent !o 2180701.
here is an abrasive $ear f the screen f the guide vane ti,, thrugh $ashut f the screen+ sea,ing feathers f shrud sea, f 1st+ 2nd and 3rd stages and $ashut f the trai,ing edges f the guide vane f 1st stage and f diaphragm b,ades f 2nd+ 3rd and *th stages in the rt and near-periphera, <nes/
ig 2 Eirst stage f 6B) $ith intermediate super heating $ith indicatin f area f abrasive $ear/
s a resu,t f this+ there is a pssibi,ity f breaking f screen/ 6t is nt pssib,e t repair the ver shrud sea,/ Eina,,y+ due t the increased ,eakage thrugh the shrud+ efficiency f the stage decreases/ >e offer re)onstru)tion of t*e s*roud seal 9uggested re)onstru)tion in)ludes + @,iminatin f the screen frm the guide vane/ 6nsta,,atin f screen f shrud sea, n the race f the diaphragm I/ 1/ ?rgani
24
ig 2& =ecnstructin f screen f shrud sea, f first stage f 6B)/
$ositive effe)t and results of implementation of t*is solution + • • • • • •
=estratin f shrud sea,/ @,iminatin f breaking f screen/ =eductin in ,eakages ",ss# f steam in the shrud sea, up t pr%ected parameters/ =eductin in abrasive $ear f shrud sea, f 1st+ 2nd and 3rd stages/ 6ncrease in the maintainabi,ity f shrud sea,/ 6ncrease in the efficiency/
ig 24 =ecnstructed screen f shrud sea, f first stage f 6B)/
Referen)es + Re)onstru)ted s*roud seals *ave been su))essfully installed on more t*an 30 turbines e6 of t*em+ !o 1
!ame of $o6er 9tation
(urbine type
,nit
Zainskaya State =egina, B$er Statin+ =ussia
K-200-130 LMZ
2
Litvskaya State =egina, B$er Statin+ Lithuania
K-300-2*0 LMZ
' &
1CCC 200*
3
=y
K-300-2*0 LMZ
1 *
2002 2003 200& 200*
200'
'onta)t details (el no
J,yakv J/ I/ )hief @ngineer ":&&&:# C'3&1 Myakas v/+ )hief @ngineer "0303:# 3320: Duri,yv ?/N/ )hief engineer "0C1*1#2-&-31
25
Kirishskaya State =egina, B$er Statin
K-300-2*0 LMZ
&
Knakvskaya State =egina, B$er statin+ =ussia
K-300-2*0 LMZ
4
Dme,sk BS-2 7ye,russia
7
'
200&
1 3 :
1CCC 2000 2001 2003
-1:0G210130
3
200*
Kstrma State =egina, B$er
K-300-2*0
1
1CC:
Statin
LMZ
2 3 & :
1CC: 1CCC 2000 2000 2001
Betrankv J/6/ )hief @ngineer ":13':# C33&C# Me,nikv / J/ ech/ irectr "*:2*2# *-31-3* Leshkevich N// )hief @ngineer "3&323#*C1'&1 Ia
Modernization of Lo6 $ressure 'ylinder L$'. Mderni
Modernization of guide blades and diap*ragms/ improvement in steam admission Modernization 6it* repla)ement of existing rotor by 6elded rotor/ *aving t* stage moving blades of 1030 mm
Duide b,ades $ith imprved+ ptimi
Modernization of moving blades and rotor elements Main fa)tors/ 6*i)* enable in)rease in effi)ien)y and reliability of flo6 passage of L$' in t*e modernization of moving blades/ are+ • •
•
• •
•
6mprvement in the prfi,es f sectins8 Shruding f a,, stages and reductin in the number f $ire cnnectins "n,y ne such cnnectin each remains in the ,ast 2 stages#8 6mp,ementatin f integra,,y mi,,ed shruds $ith ring banding "in 1-2 stages# and shruds f figurative cnstructin $ith mutua, restraint under actin f centrifuga, frce in 3rd and *th stages+ $hich prvides necessary rigidity and stabi,ity t the b,ades8 6mprvement in the meridian bypasses8 )arrying ut steam discharge penings n disks f 1-2 stages+ $hich $i,, prvide steam suctin f diaphragm ,sses thrugh inter-ring gap8 6mp,ementatin f mu,ti-thrtt,ed radia, " shrud # sea,s n the 1st and 2nd stages/
)nstructin f ,ast stage $ith b,ades f ,ength f 1030 mm prvides itHs high efficient $rking in the $ide range f v,ume f,$ f steam and significant,y reduces ,eve, f e.it ,ss/ Modernization by repla)ement or by re)onstru)tion of existing rotor using moving blades 6it* 7&& mm *eig*t on t* stage
Mderni
m + deve,ped frpassage LMZ turbines type are prved t be e.ce,,ent in the and ,ng is term e.p,itatin/ Mderni
6mprvement in the prfi,es f sectins8 6mp,ementatin f integra,,y mi,,ed shruds $ith ring banding "in 3 stage#8 6mprvement in the meridian bypasses8
,se of 6elded diap*ragms 6it* s)imitar blades/ 6*i)* are more effe)tive as )ompare to+ • • •
b,ades $ith straight ,ine generatrs8 6mp,ementatin f hneycmb radia, "abve shrud# sea,s n a,, stages8 6f reuired+ retaining f e.isting rtr shaft "$ith additina, prcessing# and disks f first t$ stages and f first diaphragm/ 4hee,s f secnd stage $i,, be further prcessed because f shifting f f,$ passage t$ards steam feed and supp,y f ne$ $hee,s f 3rd and *th stages and nd
•
rd
th
diaphragms f fu,,y 2 + 3ready andand * stages Supp,y f ne$ b,aded and rtrcasings8 is a,s envisaged/
)nstructin f ,ast stages $ith b,ades f ,ength && mm resu,ts in rep,acement f fairing n the LB) steam in,et/ Ie$ cnstructin is simp,e and des nt hamper steam f,$ at in,et n first stages/ 7,ades $ith integra,,y mi,,ed shruds $i,, be insta,,ed in rder t increase efficiency n a,, stages f ,$ pressure cy,inder/ his $i,, e,iminate spinning r unt$isting f the tai, f b,ade under effect f centrifuga, frce and he,p rgani
27
Main advantage f hneycmb sea,s+ besides increase in the hydrau,ic resistance+ is their ,ess hardness/ Aardness f hneycmb e,ement many times ,ess than regu,ar+ traditina, cnstructin in use and ,ess than f prfi,e part f periphery f nn-shrud b,ade+ thanks t $hich in case f brushing against the sea,ing e,ement+ damage t the tp f the mving b,ades r shrud is e.c,uded/ Duide b,ades f a,, stages f LB) $i,, be manufactured $ith variab,e tangentia, ffset n height+ $hich a,s increases the efficiency f the f,$ part/ Duide b,ade f ,ast stage+ besides variab,e ffset+ has back spinning r unt$isting $hich prvides additina, increased efficiency/
ig 27 Duide b,ade f diaphragm f ,ast stage
7esides this+ a system f misture remva, $i,, be imp,emented+ $hich $i,, have c-channe, separatin and periphera, misture trappers/
28
Modernization of diap*ragm and end seals 4e ffer t use mderni
?n 1st and 2nd stages frm & mm up t 2/& mm8 ?n 3rd stage frm */2& t 3 mm8 ?n *th stage frm t & mm/
his deve,ped cnstructin f sea, is distinguished by itHs simp,icity and techn,gy f manufacturing/ =eady hneycmb e,ements are inserted int the s,ts f visrs abve the mving b,ades/ 7esides this+ hneycmb sea,s serve as e,ement f misture remving system/ 9tandard type of above s*roud seal
",abyrinth sea, n smth cy,indrica, surface#
9tandard type of above s*roud seal
" ,abyrinth sea, n smth cy,indrica, surface#
Re)onstru)ted above s*roud seal
5oney)omb seal
".ia,,y radia, sea,#
Re)onstru)ted above s*roud seal
5oney)omb seal
".ia,,y radia, sea,#
ig 2: Ie$ type f high,y effective abve shrud sea,s 9 Aneycmb sea,s 29
Re)onstru)tion of front and end seals of L$' $rote)ted by $atent $atent !o 2184::2 .
hese ,$ temperature sea,s are insta,,ed in the e.haust parts f the LB)/ Ernt and end sea,s f LB) are reuired t be mderni
Reasons for t*is + • • • •
•
•
istrtin f casing f sea, chamber/ ?pening f hri<nta, cnnectr/ 4eak fastener "O 20#/ 4ear-ut f sea, rings and + accrding,y+ increase in the radia, gaps due t distrtin f casing f sea, chamber/ Suctin f steam-air mi.ture and feeding f sea,ing steam is carried ut asymmetrica,,y+ i/e/ n,y frm the tp/ Ei.ing f sea, chamber is carried ut frm the inner side f the cy,inder/
ig 30 @.isting standard cnstructin f end sea, f turbine (*is results in + • • • • • •
Iecessity f ,abr-intensive repair $rks r rep,acement f sea,ing chamber/ Jacuum chuck f air/ Steaming f sea,/ 4atering f i,/ 6mpssibi,ity f rep,acement f sea, rings $ithut dismant,ing upper ha,f f the LB)/ Jery ,$ maintainabi,ity/
30
(o over)ome t*ese problems 6e offer ne6/ re)onstru)ted and modernized seal "istinguis*ed features of su)* re)onstru)ted seal +
• • • •
•
Separate casing f sea, chamber and separate sea, races/ )asing and races $i,, be made f frging/ Eastener f vertica, and hri<nta, cnnectrs $i,, be strengthened by 2-3 times/ Munting f vertica, cnnectr f,ange f casing f LB) $i,, be carried ut frm utside f the cy,inder/ Eeeding f sea,ing steam and suctin f steam-air mi.ture $i,, be carried ut symmetrica,,y+ i/e/ frm tp and bttm/
More t*an 70 sets of re)onstru)ted seals of L$' are implemented on turbines and t*ey *ave proved follo6ing positive results +
•
6ncreased strength f the casing and fastener f vertica, and hri<nta, cnnectrs/ 6ncrease in the cntact density n vertica, and hri<nta, cnnectrs/ Bssibi,ity f dismant,ing f sea, cvers and cvers f races $ithut remving upper ha,f f the LB) and+ subseuent,y+ pssibi,ity f rep,acement f sea, rings/ Symmetrica, suctin and feeding f steam and unifrm temperature fie,d arund is prvided/ @,iminatin f vacuum chuck f air/
•
@,iminatin f Steaming f sea,/
• • •
•
• •
6ncrease in the maintainabi,ity/ 6ncrease in efficiency/
31
Referen)es + !o
!ame of $o6er 9tation
(urbine type
,nit
L$' ront seal
L$' ;nd 9eal
'onta)t details (el no
1
Zainskaya State =egina, B$er Statin+ =ussia
K-200-130 LMZ
K-300-2*0 LMZ
P P P P P P
P P P P P
1CCC 2000 2002 2001 200& 2002
J,yakv J/ I/ )hief @ngineer ":&&&:# C'3&1
Litvskaya State =egina, B$er Statin+ Lithuania
3 * & 10 12 '
P P
=y
K-300-2*0 LMZ
1 P
P P P
1CCC 200* 2002 2003
Myakas v/+ )hief @ngineer "0303:# 3320: Duri,yv ?/N/ )hief engineer "0C1*1#2-&-31
“Jarna! herma, B$er Statin+ 7u,garia
K-200-130 LMZ
3 * 1 '
P P P P
P P P P
2003 200& 200& 2003
6vanv / irectr e,/"3&C2# :*3&:2
&
Knakvskaya State =egina, B$er statin+ =ussia
K-300-2*0 LMZ
1 3 : &
P P P P
1CCC 2000 2001 2003
Me,nikv / J/ ech/ irectr "*:2*2# *-31-3*
4
Dme,sk BS-2 7ye,russia
-1:0G210130
2 1
7
“ Maritsa-Jstk! herma, B$er Statin+ 7u,garia
K-21&-130 LMZ
&
P P P P P
P P P P P
2001 2002 200* 2003 200*
“ 7bv-,! herma, B$er Statin+ 7u,garia
K-200-130 LMZ
2 3
P
P P
2003 200&
Leshkevich N// )hief @ngineer "3&323#*C1'&1 6vanv / + irectr e,/ "3&C2# :*3&:2 6vanv / irectr e,/ "3&C2# :*3&:2
2
3
8
9pray system for )ooling ex*aust ue t inadeuate efficiency f the e.isting c,ing system by steam+ $hich is drpped in cndenser frm atmspheric pressure re,ief va,ve and frm dump va,ves f intermediate verheating/ ,s+ due t the use ue f b,ades f the ,ength 1030 mm+ there is aenvisages pssibi,ityinsta,,atin f verheating f LB) e.haust in starting mdes/ t this mderni
32
his system f feeding c,ing agent prvides ma.imum c,ing effect+ reduces pssibi,ity f ersive damage t the trai,ing edges f mving b,ades f ,ast stage/ Aeated $ater is used as the c,ing agent/
ig 32 Spray system fr c,ing e.haust
5orizontal @oint seal of L$'
ig 33 Sea, f hri<nta, %int f e.haust branches f LB)
6n rder t reduce suctin f air and subseuent,y increase the efficiency f the ,$ pressure cy,inder+ $e prpse t insta,, sea,ing gaskets in the grves a,ng the f,anges f hri<nta, %int+ especia,,y in the regin f end sea,s+ near bearings+ and at the p,aces f %ints f e.haust branches frm the midsectin f the casing/
33
lo6 passage of lo6 pressure )ylinder after modernization
34
9ystem of prote)tion from abrasion 6ear his cnstructin s,utin is deve,ped n the basis f gas-dynamic ana,ysis f f,$s and prcesses f abrasive damages+ and a,s e.perimenta, studies f recmmendatins n turbines/ Brtectin f f,$ passage frm abrasive $ear is prvided by means f catching abrasive prduct direct,y in the f,$ passage and by itHs t$-step e.tractin in the uter cntur f separatin $ith the steam+ $hich is achieved by changing cnfiguratin and si
ig 3 System f prtectin frm abrasin $ear
his recnstructin he,ps in e,iminating $ear f edges f guide and mving b,ades f first t$ stages f 6B) and retain radia, sea, strips f b,ades f 13 th -1*th stages+ maintaining them in satisfactry cnditin under ,ng term e.p,itatin/ 6t is t be nted that in the e.p,itatin+ $ithut using this prtective system+ the perfrmance f the th
13 stage can decrease by 1&-20; as a resu,t f abrasive $ear/ Berid f e.p,itatin ti,, prhibitive $ear depends up n number f startups f the turbine/
35
,se of metalfluoroplasti) self lubri)ating bearing @.p,itatin f a turbine $ith grup cam drive seems t be a very serius prb,em/ =,,er bearings are insta,,ed at the supprt f the drive "Eig/ 3&#/ Aigh temperature+ dust+ vibratin+ ,ack f ,ubricatin resu,t in distrtin f the cntact surfaces f the r,,ers and casings+ destructin f separatrs and fina,,y+ %amming f the bearing/
ig 3& =,,er bearing at the supprt f the drive
Fse f s,iding bearing $ith meta,f,urp,astic "Eig/ 3'# in this p,ace is preferab,e+ because shaft des nt rtate+ but %ust turns in 130 / Materia, f the s,iding bearing has se,f ,ubricating effect+ and absence f parts f rtatin e,iminates %amming/
ig 34
Meta,f,urp,astic se,f,ubricating bearing/
36
Referen)es + !o 1
>orA exe)uted
Mderni
$o6er station B )onta)t details
Jerkhneagi,skaya State =egina, B$er Statin+ Jerkhni agi,+ Sverd,vski =egin+ Speridnv N/@/ 2000
4rks $ere e.ecuted n the turbines f b,cks Q + : + C/ mderni
2
3
=ep,acement f rtrs+ diaphragms + discs f LB rtr/ Mderni
&
Mderni
4
=ecnstructin f turbine 100-130 $ith supp,y f AB) fu,,y assemb,ed and mderni
7
Mderni
1CC& 9 200& Sredne-Fra,skaya S=@BS+
Bechrsk State =egina, B$er Statin 7,ck * Lupir J/ L/ ":21*2# '-'3-&0 Zainsk =egina, herma, B$er Statin J,yakv J/I/ )hief @ngineer ":&&&:# C'3&1 JZ herma, BS 7,ck 3 /200* Zhuchenc L// "3*3# 3:-*-' JZ herma, BS 7,ck */200' Zhuchenc L// "3*3# 3:-*-' J,ga BS 7,/ Q : BermBS-1* 7,/Q* LipetskBS-2 7,/ Q J,gagrad BS-3 7,/21 ?msk BS-* 7,/ Q C Iv-Ster,itamask BS 7,/Q3 Ka
38
Re)onstru)tion and modernization of #utomati) Coverning 9ystem Aydrau,ic gverning system f K-210-130 turbines+ ,ike K-200-130 pr%ected in '0-s+ is utdated mra,,y and physica,,y and des nt meet the mdern reuirements fr freuency and p$er system capacity cntr, and a,s reuirements f autmatin f turbines/ 6tHs perating characteristics+ especia,,y re,iabi,ity and stabi,ity+ are mst,y determined by ua,ity f repair $rks and degree f c,eaning by perating f,uid/ B$er cnsrtium “DarantB,us! ffers recnstructin f autmatic gverning system fr turbine K-210130 f LMZ design+ $ith itHs transfrmatin in t e,ectr-hydrau,ic gverning and safety system by rep,acement f e.isting hydrau,ic gvernrs $ith e,ectrnic/ =ecnstructin is carried ut using mdern digita, industria, autmatic euipments f seria, prductin in accrdance $ith the internatina, standards/ @,ectr-hydrau,ic gverning system prvides $rking f the turbine in the mdes f autmatic turning+ synchrni
7,ck type steam turbine K-200-130 r K-210-130 =ecnstructin f gverning system in accrdance $ith the reuirements f F)@ by transferring it int e,ectr-hydrau,ic gverning system/
39
2 #ssignment and formulation
@,ectr-hydrau,ic gverning system being+ mderni
uring the recnstructin f hydr-mechanica, part f the gverning system+ the e.isting hydrmechanica, gvernrs are rep,aced by e,ectrnic/ dditina, gvernrs 9 p$er gvernr+ gvernr fr steam pressure etc/ d nt reuire any additina, mechanica, devices and are frmu,ated in the frm f prgrams+ $hich are t be e.ecuted by gvernrs f e,ectr-hydrau,ic gverning system+ frm $here signa,s are passed n t the main servmtr/ he main cmpnent+ $hich cnverts e,ectrica, signa,s frm varius sensrs $hich “keep $atch! n cntr,,ing parameters - e,ectrmechanica, cnvertr+ $hich cnsists f high-true e,ectrmtr and scre$-type reducer "ba,, scre$ pair#+ cnnected t it/ ?utput shaft "pu,,# f the cnvertr is rigid,y cnnected $ith the ne$,y supp,ied cut-ff s,ide va,ve+ $hich determines the psitin the shaft f main servmtr/ he frce+ deve,ped by the cnvertr is mre than *000I/ he accuracy in the psitining f s,ide va,ve+ $hich is disp,aced by the cnvertr+ is ca,cu,ated in hundredths parts f a mi,,imeter+ and magnitude f frce+ $hich is deve,ped by the cnvertr during $rking+ des nt depend up n magnitude f given disp,acement+ but depends n,y n the resistance t the disp,acement/ "uring re)onstru)tion ofoft*e system/ follo6ing )*anges are made in t*e me)*ani)al-*ydraul i) part t*e governing governing system+ -
Main servmtr is gverned $ith the he,p f ne$ cut-ff s,ide va,ve+ hydrau,ica,,y cnnected para,,e, t the standard r regu,ar and scr,,ab,e by e,ectr-mechanica, cnvertr/
Regular )ut-off slide valve is transferred to guard mode and set on )ut-off mode fully $arts of servomotorDs feed- ba)A are dismantled/ *ydro-me)*ani)al feed-ba)A is repla)ed by ele)troni)+ -
-
-
-
-
grup f e,ectrmagnetic va,ves $i,, be insta,,ed+ $hich is meant fr speeding up the disp,acement f “regu,ar! cut-ff s,ide va,ve during discharges f e,ectrica, ,ads by shutting ff the generatr frm the circuit and during ,ss f p$er supp,y t the e,ectr-hydrau,ic gverning system8 7,ck f speed gvernr $i,, be recnstructed 9 speed gvernr $ith f,,$-up s,ide va,ve+ ,ever and parts cnnected $ith them $i,, be dismant,ed+ upper cntr,,ing s,ide va,ve O &0 9 $i,, be retained t perfrm functins f ccking the s,ide va,ves f the safety gvernr and pening f servmtrs f stp and cut-ff va,ves/ Speed gvernr $i,, be perfrmed e,ectrica,,y in cmbinatin $ith dup,icate industria, cntr,,er f “?M=?I! "Uapan# 8 Sensrs f rtatin freuency fr the $rking f e,ectric speed gvernr $i,, be insta,,ed8 feed the signa,s abut main servmtrHs pistn psitin int the cntr,,er+ an e,ectric sensr f psitin $i,, be insta,,ed8 he regu,ar hydrau,ic prtectin system f turbine "safety gvernr+ s,ide va,ves f safety gvernr# $i,, be retained and dup,icated by e,ectric channe,s+ actuating the main servmtr8 40
-
-
-
differenciatrs $i,, be dismant,ed8 dditina, end circuit breakers " pr.imity sensrs# $i,, be insta,,ed n servmtrs f cut-ff and stp va,ves8 ?i, pressure sensrs $i,, be insta,,ed in the cntr, system and steam pressure sensrs n different steam pipe,ines/
22 ;le)tri)al part of t*e governing system ;le)tri)al part of governing system in)ludes +
1# )ntr, cabinet "sp,ash-prf cnstructin#+ is perfrmed n the basis f mdern digita, industria, autmatic euipment f ?M=?I "Uapan#+ $ith f,,$ing basic cmpnents5 -
-
-
-
-
seria,
up,icate digita, prcessr device $ith inputGutput b,cks8 Serv-driver f “?M=?I! "Uapan# + cntr,,ing by fast-acting and high-perfrmance high-true mtr and assuring psitining f drive f s,ide va,ve-acce,eratr f main servmtr8 )ntr, key buttns f e,ectr-hydrau,ic gverning system8 Draphica, disp,ay $ith sensr screen+ a,,$ing vie$ing and scr,,ing signa,s abut $rking f gvernrs+ safety and prtectin cnditin+ current magnitude f parameters f e,ectrhydrau,ic gverning system and cntr,,ing by s$itching n "ff# gvernrs+ changing parameters f gvernrs+ vie$ the event ,g8 hree cnvertrs f “?M=?I! "Uapan#+ prviding readings f rtatin ve,city f turbinetachmetric rtr a,ng three independent channe,s/
2# 4rking statin inc,udes 5 -
System unit8
-
visua, disp,ay unit "vide mnitr#
-
key bard $ith muse/
3# B$er transducer+ sensrs fr pressure+ rtatin freuency+ psitin/ *# @mergency pane,/ &# Fninterrupted p$er supp,y unit/ '# cab,e cmmunicatin/ @,ectrica, part f e,ectr-hydrau,ic gverning system cnsists f euipments f genera, industria, prductin+ $hich prvides pssibi,ity f repairing f the system by simp,e rep,acement f the b,cks r units $hich d nt reuire separate tuning r ad%ustments+ independent f the manufacturer/
41
3 >orAing of t*e ele)tro-*ydrauli) governing system
Dverning by main servmtr $i,, be carried ut as f,,$s5 )ntr,,ing signa,s frm the key buttns n the cntr, pane, "System f autmatic gverning f techn,gica, prcesses+ emergency cntr, pane, r $rking statin# reach the e,ectric mtrs/ @,ectrmtr f mechanica, cntr, f turbine $i,, be retained/ 6tHs functining $i,, be ,imited $ith ccking the s,ide va,ves f the safety gvernr and pening f stp and cut-ff va,ves/ ?n startup f the turbine "by impact n “add! buttn# first the stp and cut-ff va,ves are pened "cntr,,ing thrugh the e,ectrmtr f mechanica, cntr, f turbine#+ then the prgram pens the main servmtr "cntr,,ing thrugh high-true e,ectrmtr#/ ?n changing the psitin f rtr f high-true mtr+ the psitin f cntr, s,ide va,ve a,s changes and thrugh the hydrau,ic cmmunicatin the signa, is sent t the servmtr/ 6n this case crrespnding disp,acement f shaft f the main servmtr takes p,ace+ $hich is f,,$ed- up by the psitin sensr/ ?n reaching t the set psitin by the main servmtr shaft+ the shut-ff s,ide va,veacce,eratr returns back t the psitin f shutting ff and mvement f servmtr shaft stps/ ?n getting activated the s,ide va,ves f the safety gvernr+ thrugh the $ind$s f these s,ide va,ves+ the drainages frm the cntr, ,ines are pened by regu,ar shut-ff s,ide va,ves f main servmtr+ pressure in the circuit drps d$n t
Measurement f rtatin freuency f turbineHs rtr is carried ut in the range f 0 t &000 =BM $ith an errr f ma.imum 0/1 =BM/ =tatin freuency sensrs f Uapanese cmpany ?M=?I "3 $rking and 1 reserve# are standard/ Signa, pick-ff is carried ut ne by ne frm grves n the rtr f centrifuga, pump a,ng three channe,s $ith the he,p f high-speed rtatin freuency meter+ cntr,,er frmu,ates utput-signa, as “average measured frm three!/ 4rking f e,ectr-hydrau,ic gverning system is admissib,e if ne measuring channe, is nt $rking/ ccuracy in measuring rtatin freuency f turbineHs rtr prvides pssibi,ity f maintaining p$er freuency $ith insensitivity up t 0/02;/ & Rotation freEuen)y )ontroller speed governor.
Speed gvernr gives a pssibi,ity t perfrm f,,$ing peratins n the turbine 5 -
turning f turbine8
-
testing f density f steam distributin rgans8
-
testing f mechanica, safety regu,atr n dispersin and dispensing f i,8
-
synchrni
-
setting and maintaining the e,ectrica, ,ad/
?n turning f turbine the rtatin freuency cntr,,er can $rk n B6-,a$+ maintaining freuency f rtrHs rtatins set by the peratr r autmatin+ $ith ,$ nn-sensitivity/ Setting f rtatins is carried ut $ith speed+ set by the peratr+ by means f discrete signa, r uanti
42
?n synchrni
-
frmu,ate tasks fr cntr,,er n cmmands frm peratr by means f discrete signa,s n the master cntr, “! r “=@F)@!/ 6n nrma, $rking mdes f turbine+ assigning f rtatin freuency t the cntr,,er regu,atr n higher ,imits is ,imited t magnitude 32*0 =BM+ in testing f anti- acce,eratin prtectin the autmatic s$itching-ver f higher ,imit t 33'& =BM is envisaged/
;le)troni) speed governor enable to perform + -
-
Smth cntr, f rtrHs rtatin freuency frm 1&00 =BM t 33'& =BM8 Sustainab,e maintaining f rtatin freuency in the range f 1&00 t 33'& =BM $ith an accuracy f V 1 =BM8
-
verage ,eve, f unevenness f speed gverning frm 2 t 10 ;8
-
Leve, f nn-sensitivity f speed gverning ma.imum 0/02 ;/
4 $o6er governor
B$er gvernr $rks n B6-,a$ f gverning $ith princip,e freuency crrectin/ B$er gvernr autmatica,,y s$itches9ff in case f 5 -
S$itching-ff f generatr frm the circuit8
-
)hange f circuit freuency beynd admissib,e ,imits8
-
Eai,ure f p$er measurement channe,8
-
=eductin in the turbine ,ad be,$ set ,eve,s8
-
ecrease in pressure f pen steam be,$ admissib,e ,eve,/
Master cntr,,er f p$er enab,es perfrming f f,,$ing functins 5 -
-
Smth s$itching-n f gvernr8 )hange in the ,imits f perating range f p$er gvernr n cmmands frm peratr by means f discrete signa,s “! r “=@F)@!/
Maintaining accuracy f e,ectrica, ,ad eua,s t 1 M4 and is determined $ith an accuracy f measurement f signa, by p$er cnvertr/
43
7 reEuen)y )orre)tor
Ereuency crrectr channe, f the speed gvernr is meant fr frmatin f signa,+ prprtina, t inc,inatin f turbineHs rtatin freuency frm nmina, magnitude+ taking int cnsideratin set <ne f nn-sensitivity and set ffset f gverning/ Ereuency crrectr has the pssibi,ity f ad%usting <ne f nn-sensitivity n the freuency range f V 0/002 A< "V0/1 rtatinGmin/# t V 0/3 A<+ a,s there is a pssibi,ity f setting gverning ffset in the ,imit f 2 W 10;/ 8 #dditional )*annels for redu)ing overs*ooting of turbine rotorDs rotation freEuen)y on dropping of ele)tri) load
dditina, channe,s fr reducing vershting f rtatin freuency frm acce,eratin f turbine rtr cnsist f 5 1# @,ectrnic differentiatr/ Signa, f differentiatr is frmed n simu,taneus e,evatin f psitive acce,eratin f rtr higher than predetermined ,eve, r setting/ Signa, brief,y c,ses the main servmtr $ith f,,$ing reductin in rtrHs rtatin freuency t 3000 =BM+ by this prviding reductin in the dynamic vershting f rtrHs rtatins under fu,, r partia, drpping f e,ectrica, ,ad/ 2# dditina, ,imitatin n rtrHs rtatin freuency can shut d$n the turbine at the ,eve, 3100/3*00 =BM/ Limitatin setting f rtrHs rtatin freuency can be changed during the $rking f the turbine frm the disp,ay f cntr, cabinet/ 3# =e,ay speed-up channe, ,imits the vershting f turbine rtrHs rtatin freuency in case f shutting ff the generatr frm circuit/ )hanne, frmu,ates brief signa, n c,sing the cntr, va,ves $ithin set time+ f,,$ing by reductin in rtrHs rtatin freuency t 3000 =BM by s$itching-n the speed gvernr in prprtina,-integra, mde f $rking/ =e,ay speed-up channe, starts $rking n receiving s$itch-ff signa, f generatrHs circuit breaker/ Eacts abut functining f abve mentined arrestrs are registered in the %urna, f emergency events/ )hecking f additina, channe,s is carried ut 5 - n acce,eratin f turbine8 - during testing f e,ectrica, ,ad drpping - acce,eratin imitatin n standing turbine+ by transferring tachmeters f autmatic gverning system in test mde and setting crrespnding freuency/ : ;xternal )*annels of emergen)y )ontrol
)hanne, f emergency impu,se ff,ading f p$er b,ck prvides receptin fr prcessing up t three discrete signa,s f emergency autmatin f p$er system/ Er each signa, tuning can be carried ut t ad%ust p$er b,ckHs passing duratin f “
44
10 $o6er supply to ele)tro *ydrauli) governing system
meet the reuirements n re,iabi,ity+ p$er supp,y t the cntr, cabinet is carried ut frm the surces f primary p$er supp,y5 -
Erm sing,e phase circuit f a,ternating current f X 220 J &0 A< "V20;#8
-
Erm statin circuit f reserved perative direct current f Y220J "V 20;#
ensure s$itching ver and cnversin f direct current an uninterrupted p$er supp,y unit is used+ at the in,et f $hich abve mentined currents are fed/ 11 ;xploitation )onditions
)ntr, cabinet f e,ectr-hydrau,ic gverning system has prtectin ,eve, 6B&&/ @.p,itatin cnditins f e,ectr-hydrau,ic gverning system 5 -
emperature frm &) up t *&)8
-
=e,ative humidity up t C& ; at temperature up t 2&)/
12 Referen)es
Mderni
1
"es)ription of 6orA/ supplies et)
urbine K-200-130 LMZ Fnit I/ 11 =ecnstructin f autmatic gverning system/ ransfer int e,ectr-hydrau,ic gverning system $ith micrprcessr apparatus f US) “6nteravtmatika!/
2
urbine K-200-130 LMZ Fnit I/ 12 =ecnstructin f autmatic gverning system/ ransfer int e,ectr-hydrau,ic gverning system $ith micrprcessr apparatus f US) “6nteravtmatika!/
3
urbine -330-23+&-1
Fnit &
=ecnstructin f autmatic gverning system/ ransfer int e,ectr-hydrau,ic gverning system $ith micrprcessr
$eriod + start finis*
'lient 'onta)t details
Uune-Uu,y 200&
Shekinskaya S=BS Ka,iningrad =egin+ Svetsk+ F,/ @nergetikv 1-D e,/ "*:&2# -*231
ugust 9 September 200&
Shekinskaya S=BS Ka,iningrad =egin+ Svetsk+ F,/ @nergetikv 1-D e,/ "*:&2# -*231
200'
=eftinskaya S=BS Sverd,vsk =egin sbest+ =eftinski+ e,/ "3*3'&# 3-33&0
45
urbine 100G120-130-3
=ecnstructin f autmatic gverning system/ ransfer int e,ectr-hydrau,ic gverning system $ith micrprcessr "pr%ect+ manufacturing+ insta,,atin and cmmissining# ech/ supprt
ugust 9 September 2003
Iri,sk BS 9 3 Iri,sk+ B?7 2C''
ugust 9 September 2003
Iri,sk BS 9 2 Iri,sk+ B?7 2C''
e,/ "3C1C#*3-'&-20
“)mpressr )ntr, )rpratin! FS urbine 100G120-130-2
&
=ecnstructin f autmatic gverning system/ ransfer int e,ectr-hydrau,ic gverning system $ith micrprcessr "pr%ect+ manufacturing+ insta,,atin and cmmissining# ech/ supprt
e,/ "3C1C#*3-'&-20
“)mpressr )ntr, )rpratin! FS
?ptimization of t*ermal expansion of turbine 6n the v,ume f recnstructin $rk n turbine $e envisage mderni
•
6nsta,,atin f meta,f,urp,astic tapes n the fundatin frames f frnt and midd,e bearings t reduce frce f frictin n supprting surfaces and t e,iminate hpping mvement f the bearings8 6nsta,,atin f turning pins under supprting arms f AB) and under frnt supprting arms f 6B) in rder t e,iminate “ biting “ f pins in the s,ts and t re,ieve the transversa, therma, e.pansins f cy,inders8
•
6nitia, Bsitin
Ma.imum pssib,e turning f cy,inder arm
Standard pin
6nitia, Bsitin
Ma.imum pssib,e turning f cy,inder arm
=ecnstructed pin
ig 37 =ecnstructin f transverse pins f cy,inders
46
•
•
ughening f e.haust branch piping f 6B) ,ngitudina,,y and vertica,,y and ,ngitudina,,y in LB)/ 6n rder t nrma,i
ig 38 Mderni
Modernization of bearings Modernization of liners of bearings
6n rder t reduce the magnitude f mechanica, ,ss+ $e ffer a,ternatin in i, feed piping in t the bearing ,iners f the turbine/ ?i, is feed in t the “$edge!+ in this case upper bypassing is e.c,uded/ Mderni
Suctin f i,y steam frm the casings f bearings $ith the he,p f e.hauster $ith e.haust int turbine ha,, is envisaged under this mderni
@.isting casing i,-sea,s f bearings are f nncntact type+ therefre there is ,eakage f i, in the frm f fi,m due t high $ettabi,ity f meta,s by i,s/ 4e ffer t carryut ,ephbic cating n the surface f meta, in the regin f sea,ing/
47
=ui)A-deta)*able flange fastener for *alf-)ouplings of rotors 6n rder t increase maintainabi,ity and cut d$n the cst f servicing during repair $rks $e ffer t use uick-detachab,e fastener $ith ad%ustab,e radia, pu,, fr cnnecting ha,f-cup,ings f steam turbine shafting/
ig 3: [uick-detachab,e f,ange fastener fr ha,f-cup,ings f rtrs
9ystem of for)ed air )ooling of t urbine his system prvides faster c,ing d$n f AB) and 6B) f turbine after ha,ting it up t the temperature+ at $hich the cntr,,er can be put ff/ ),ing f turbine parts is carried ut by means f rgani
$artial or step-by-step modernization
Mderni
9tep 1 5 AB) - 4ithut rep,acement f rtr and e.terna, casing/
I<<,e b,ck+ mving b,ades f 1st stage are rep,aced/ 9tep 2 5 AB) - 4ithut rep,acement f rtr and e.terna, casing/
Mving b,ades f 2 (12 stages+ diaphragms+ diaphragm sea,s and casing are rep,aced/ 9tep 3 5 AB) - 4ithut rep,acement f e.terna, casing+
=ep,acement f rtr+ n<<,e b.+ end sea,s+ mving b,ades f 1(12 stages+ diaphragms+ diaphragm sea,s and casings/
48
9tep 5 6B) - 4ithut rep,acement f rtr and e.terna, casing/
=ep,acement f n<<,e b.+ mving b,ades f 1st stage/ 9tep & 5 6B) - 4ithut rep,acement f rtr and e.terna, casing/
=ep,acement f mving b,ades f 2 ( 11 stages+ diaphragms+ diaphragm sea,s+ rtr disks f : (11 stages+ casings/ 9tep 4 5 6B) - 4ithut rep,acement f e.terna, casing/
=ep,acement f 9 rtr+ n<<,e b.+ end sea,s+ mving b,ades f 1 ( 11 stages+ diaphragms+ diaphragm sea,s+ ykes/
9tep 7 5 LB) - 4ithut rep,acement f casing/
=ep,acement f rtr+ end sea,s+ mving b,ades "$ith insta,,atin f ,ast stages in t$ variatins 9 && mm and 1030 mm#+ diaphragms+ diaphragm sea,s+ casings and recnstructin f steam in,et and e.haust branch/
6f the service resurces f casings and ther high temperature cmpnents are a,ready e.hausted+ n ),ientHs desire they can be rep,aced and at the same time mderni
Retaining of turbine eEuipment and in)rease in reliability during modernization ?ffered measures n mderni
49
n)rease in t*e effi)ien)y of t*e turbine E,,$ing are the magnitudes f efficiencies f turbine cy,inders $u,d be achieved as a resu,t f prpsed measures carried ut n turbine n cnditins5 Eresh steam pressure at turbine in,et emperature f fresh steam at turbine in,et Steam temperature after reheat at turbine in,et
- 130 kgsGcm2 - &3& ) - &3& )
Bressure ,ss n reheat rute "frm e.haust f AB) t reheat va,ves in re,atin t the pressure at e.haust# emperature f c,ing $ater ),ing $ater cnsumptin
- 1&/*; - 30 ) - 2000 tGArs
@fficiency f AB)
- :/0;
@fficiency f 6B)
- C3/0;
@fficiency f LB)
- :'/&;
Modernization versions Fersion 1
=ep,acement f f,$ passage f AB+ by bringing turbineHs steam cnsumptin capacity up t '0 tGArs+ by retaining e.terna, casing f AB+ AB rtr+ 6B and LB cy,inders+ $ithut mderni
Fersion 2
=ep,acement f f,$ passage f 6B+ rep,acement f capped disks f : ( 11 stages+ by retaining e.terna, casing f 6B+ rtr f 6B+ bth AB) and LB)+ $ithut mderni
Fersion 3
=ep,acement f f,$ passage f LB+ LB rtr+ diaphragms+ end and diaphragm sea,s+ casings+ imprvement in steam in,et and e.haust branch+ by retaining e.terna, casing f ,$ pressure+ AB and 6B cy,inders+ $ithut mderni
Fersion
Mderni
Mderni
50
'*ara)teristi)s of modernized turbine K-210-130 LMZ designed . 'apa)ity M>
'onsumption of fres* steam tG5rs
$ressure loss on re*eat route from 5$' ex*aust to $' in relation to pressure before $' H
(emperature of fres* steam o '
Re*eat temperature o '
5eat Rate K)alGA>*
21&
4&0
1&
&3&
&3&
2007
I '*ara)teristi)s are given as per Fersion or ea)* individual turbine version of modernization and )*ara)teristi)s after modernization are determined by )al)ulations on t*e basis of examination and t*ermal testing
Results of modernization •
•
=estratin f turbine resurces t ne$ - 220 000 Ars8 Drss increase in the nmina, capacity f the turbine in re,atin t actua, cnditin at present by 1&-20 M4 by increasing efficiency f f,$ passage+ if cnditins+ stated in abve tab,e are met8
•
=eductin in the Aeat =ate at an average f 133 kca,Gk4h and accrding,y reducing fue,
•
cnsumptin per ki,$att f insta,,ed capacity8 6mprvement in ua,ity f p$er generatin by imprvement in the $rking f turbineHs cntr, system8
•
6mprvement in the maintainabi,ity f turbine cmpnents8
•
6ncrease in verhau, perid by imp,ementatin and use f mdern materia,s8
•
•
=eductin in repair-$rks cst and perids8 increase in the service ,ife f heavy duty cmpnents by app,ying $ear-resistant catings n them8 Irma,i
•
6ncrease in re,iabi,ity f turbineHs peratin8
•
=etentin f fundatin8
•
Ma.imum use f further uti,i
(*is modernization pro@e)t for LMZ turbine K-210-130 enables a)*ieving signifi)ant in)rease in t*e )apa)ity/ redu)ing *eat rate at )onsiderably lo6 )ost of re)onstru)tion as )ompare to ne6 turbine eEuipment 6it* similar )*ara)teristi) parameters
51
9)ope of supply
!o 1 11
"es)ription ;Euipment for modernization of 5$'
,nit
=uantity
=tr f high pressure fu,,y assemb,ed
Bc/
1
12 13 1 1& 14 17
I<<,e diaphragm iaphragms f 2-12 stages "$ith sea, rings# Sea, rings fr frnt and end sea,s AB) sea, frnt =ecnstructed K\ 1:/13'/02/00)] AB) sea, end =ecnstructed K\ 1:/13/02/300)] Mderni
Bc/ Set Set Set Set Set
1 1 1 1 1 1
Bc/ Bc/ Bc/ Bc/ Bc/ Bc/ Bc/ Bc/ Bc/ Bc/ Set
1 3 * 1 2 2 &0 &0 * * *
Bc/
1
Set Set Bc/ Bc/
1 1 1 1
Bc/ Bc/ Set/ Set/ Set/ Set/
1 1 1 1 1 1
'ontrol valves of 5$' 21 22 23 2 2& 24 27 28 2: 210 211 212 213 21 21& 214
)ntr, va,ve O 12& I/ 1 K\ 1*/*1*/0C )] )ntr, va,ve O 1&0 I/2+ 3+ * K\ 1*/*1*/0: )] )ver K\ 1*/100/0: )] )ams f cntr, va,ves f AB) "Set f * cams# K\ 1:/*2/02 )] ),umn f upper va,ves I/1 and I/ 2 K\ 1:/*1/0' )] ),umn f side va,ves I/ 3 and I/ * K\ 1:/*1C/0* )] Stud M2*/'g. 10& ^_` C3/:&0/12 7,t M2*/'11/& ^_` '3/C01/01C Suspensin fr va,ve K\ 1*/*1/00 )] Set f super airtight sea, -130G*0 Set f parts fr 6nsta,,atin f -130G*0 in the cver f va,ve K\ *2/*&0/03 )] Spare parts fr cmpnents f steam distributin "rd+ bushing+ spare super airtight sea, K\ 1:/001/ 6nsta,,atin set fr Super airtight sea, K\ *2/002/MK 6nsta,,atin set fr c,umn K\ *2/001/MK )entering euipment K\ 32/:00/01 )] ynammeter "crane sca,es#K7/1000/2 ;Euipment for modernization of $'
31 32 33 3 3& 3& 34
=tr f 6ntermediate pressure fu,,y assemb,ed Duide vane f 6B) iaphragms 1*-23 stages "$ith sea, rings# Sea, rings fr frnt and rare end sea,s Ernt 6B) sea, "recnstructed# K\ 1:/1*0/02/&00)] @nd 6B) sea, "recnstructed# K\ 1:/1*1/02/200)] Screen f shrud sea, fstage 13th K\ 1:/122/02/120)]
Set/
1
;Euipment for modernization of L$' 1 2 3 & 4 4 7 7 8
=tr f LB) fu,,y assemb,ed Barts fr c,ing system fr e.haust system f turbine iaphragms 2*-31 stages iaphragm casing fr LB) Barts fr mderni
Bc/ Set Bc/ Bc/ Set Bc/ Set Set Set Set
1 1 : * 1 1 1 1 1 1 52
?t*er &1
&2 &3 &
&& &4
7,ts f cup,ings AB=-6B=+ 6B=-LB= and LB=-D= uickdetachab,e cnstructin Mderni
Set
1
Bc/ Set Set
& 1 1
Set Set
1 1
midd,e bearing K\ 1:/01/02/1&0)]
53
5eat diagram of modernized K-21&-130 -1 turbine •
(urbine 6orAing J Mode 1
54
5eat diagram of modernized K-21&-130 -1 turbine •
(urbine 6orAing - Mode 2
55
;le)tro-*ydrauli) governing and safety system
9)*emati) diagram K-200G210-130 LMZ turbine
56
Modernization and re)onstru)tion of )ontrol valve $atent !o 2218
57
Modernization and re)onstru)tion of )ontrol valve $atent !o 22333
58
Modernization and re)onstru)tion of )ontrol valve 9uper-airtig*t seal $#(;!( !o 223:112
59
Re)onstru)ted and modernized front seal of 5$' $atent !o 2184::2
60
Re)onstru)tion of seal )*amber of ;nd 9eal of 5$' $atent !o 228:&2
61
Re)onstru)tion of s*roud seal of 1st stage of $' 6it* intermediate *eating of steam $atent !o 2180701
62
