OE
Carlyle
Carrier Corporation
Compressor Sales
INTRODUCTION os
frig rant leak have lw be jo concer ny as oc at wi refrig rant repl ce en nd he reliab li ge
th
condit on ng or refrig ra on st m, of he un have give syst design rs
ve
on
(E fu uo ause of ozon depl tion Unfortun te he most om on refr gerant
ne in refrig ra on
used toda
nd
he
ol
nu
fr bu
ul fo refr gerant piping problems
REFRIGERAN
ns
on
LINE VIBRATIO
THEORY
1. Structural
sonances
3. Acoustical Resonances
STRUCTURAL
of he discharg
RESONANCES
he ga pu sa ions (exc ting fr quen ). Wh
du
on
nc
br bi
he xc ting fr qu nc
qu he frequenc
ma ch
ob bede
ub
ha
he oc
ha
ry uc ur
uc ur gn
pi ou
us
FORCED VIBRATIO
Forced vibr tion isth vibr tion ra
ause
by
ovemen of th co pres or (compresso
dr ve vibr tion
on
xc
ro
nc ,s
on
ob ng
nt ha
ki
vibratio an structur resonanc in re se with he in rodu tion of spring nt th system Spring or rubb moun ng of ompres or isso etimes ne essary dependin on nv ronmen nd or rack or un design Spring ountin generall make piping geometry or co pl an in re se th poss bi it racks, don't. on
manufa turers ng shaf
requ rement
he
an
on
re ommendations
yp call
be
vibr tion
he
bsorbers shou
pi
ar fu pl nn ng
be para le
ng
an limina
di ne xc ss ve piping nd bends.
PREFERRE FO
nd he
CLAMPING METHOD
S YS T M S
IT
FL
PI
COMPRESSOR
COMPRESSOR
..... ",
..
S PR IN G M OU N OT
ON
WH
CL MP
S OL I SH UL
PL
RE
ON
P IP E
OTAL
M OU N NG
to vibrat regard es of he piping geometry Al re iprocating ompres or emit discharg gaspulsa tion (a reciproc ting ompres or generate on tant stre of pu sating flow). he discharg ga pu sa ions re with th piping system geom tr su wa as se up os il atin forc di ch rg elpr gh ra gh ge ga he nd ou nt art each bo ay ncreas he oscillat on re in sign fi an amount .o line vibr tion De igning th discharg piping as straight as possible will reduce th chance of pulsation, driven vibratio occurring.
gh re ACOUSTICA
ha
he pi
ul
ra
RESONANCE
Acoustic resonanc result from he specif di ch rg ga prop rt an he piping syst geom tr he uc dy fe he on specif oc tion such magn ud caus sign fi an vibration. Th re re many pe of cous ic om on difficultto
he
ng
ul on
The. followin paragraphs detail critical length calculation. Although critical length calculations ar stra gh forward, he er inolog no fa il ar itca become very confusing. Be omin familiar with th fo lowing definition will ak he ri ical leng discus io more comprehens bl ng
he
ul
f.
pr ssor ar as follows:
nc
ns
or
rl
om
11 hertz. Element
Segmen of discharg de
pipe be we
wo term na ions bo
er i-
feetj second. Lj2
Critical Length
engths an be
si
fo an ex itin
ve calcul te
fr qu nc
(Lj2).
he usin th followin formula: Lj2
gt
Cj2f
DICH. SVC.
~L
I---'~
..
COMPRESSOR
20
1:=:
= -1 3 = -~ -
33
vmmmmw
I---8"---1
X-RIGID TERMINATIO
CRITICAL
LENGTH CALCULATIO
588 ft.j
on
0F
5F (2 58
ul
llowin be
or -10%
7h
cr ti al engt ranges ca cula ed
muffler;
or va
5.06 ft he
wo imes oper ting ex mp po
60 82
ofa po en ia ou
on
gt
pe d) cous ic resonanc na
woul be ng
th firs elbo be
DESIGN RECOMMENDATION
complex. It ho gn br pr th part cula design should bereus nt re NOTE ibra on prob em ma be re te by an change to th design i.e. differen dimensions additional fittings differen mufflers .. In conclusion fo
de
I'. Ke
in as stif
nd ight as possib e. Keep in mind ha th line ma requ re nh rent fl xibility s..
possible. If
us 0' os po sible. Us fi ting of he proper size don' redu
PIPIN
ne si
fo fitt ngs. Don' us fi ting th
PRACTICE
PREFERRED
TYPICAL
NO
*A FORMEDRADIU OF10PIP
BETTER LONG RADIU
TYPICAL SHORT RADIUS
TYPICAL HIGH ap FITTING
DIAMETERS ACTS ACCOUSTICALL AS
ge fo gi possible.
op
ge
ne nt
PREFERRED FORMED BEND*
STRAIGHT LINE
po
fi
ne
un
ol ou
pp de
ge ne
ho
ng uc
us ff rs he he fitt ng Id al placemen of he muffle isno alwa upstre of tself.
ne
poss bl
re
di
os bu note ha
ne
pp
or uffl
rs in ffective
EXISTING SYSTEM
he ue
ho
ur ue uffi ient mass to drop he na ural frequenc
of
ng
ut
di of he discharg line to he rang of th ga pu sations.
ge vi fe un refr gerant line If weight isal ow lamp
toxi
is discusse
late
th
to move ndep nd nt of he in he he ection
nd
au
ea
he
nd po en iall
gas.
lamp To de rm ne ifa muff er il beeffectiv thro tl he di ch rg valv fo pproximate 20 PSI in re se di ch rg pressure Th pr ssur in re se do no oc ur un il he valv sal os ompletel will If he piping vibr io compressor). usually an effectiv application.
subs de wi
th
ga pu ompr ssors.
determ ne wh th
3.
bu
th vibratio
he
hrot ling of th discharg
du
va ve
ns
uffl
will or
ompr ssor imba an
or ga puls ions th
va
ee al pressure from co pr ssor bo
ng
ba
step #5 SF/H
ompr ssors.
mb lanc
oc ur
fter runn ng
weak base os ul us ng amps th wi be most ff ctiv ifpl ce he directio of maxi um ot on If line ismovin hori on ll nd ou cl mp it vertic ll th lamp es ffective amping line be very effe tive pr
rs
he If
he discharg
in
CLAMPIN
METHOD
LESS EFFECTIVE
PREFERRED
heck ng he discharg piping syst pr he lengthened before reaching discontinuitie It
AN
EFFECT
geom tr fo cous ca resonanc us ng th ca cu ations rt (mufflers, elbows .. ). Some redesign of th discharg piping
MUFFLER ARRANGEMEN
PREFERRED
SERVIC
LES
EFFECTIVE
VALVE WILL NO REDUCE PULSATIO SERVIC VALV AN MUFFLE
AMPL.ITUDE IN SECTlQ
BETWEE
MUFFLERS
Mufflers ca reduce discharg ga pulsations an effectivel eliminat vibratio problems downstream of th m. In most se uffl rs ar neff ct ve at ow fr quen ies, th pr mari depend on he uffl fe du puls ion. sp cifi ll rl 06 an 06 co pres ors. uffl pl cement very mpor an he ca cu at
fo long tudina
standing NE
av patterns CARLYL
MUFFLE
DESIGN
DIMENSIONS
CARRIER
FLOW
06DA605594 06DA605604 060A605614
1.12811.133
1.0.
.440
EN
SHELL (3"00)
CA
INLETI OUTLET
1 4 - - : _ -= - -= - ~ -= - -= - -= - -= - -= - -= - -= - -= - -= - -1 - 1 .- 2 5 -. EN
VIEW
. ~ 1 2 -- - - - - - - - - - - - - - - - - - . . - -
SIDE VIEW
-~Y--.-.I.I
c,
oc
rs
on
be used uffl rs
be us
ff ctiv ly reduce piping
st
if used prop rl
pr viousl an
ul
no se Leng hy piping runs ofte develo
effect ve reducing piping no se ev ls Th ne muff er offere co pr ssor in syst ms with piping no se prob ems. discusse
br
by
rl
re om ende
fo 06
th addition of so cr at
uffl ca dd suff cien mass to discharg lineto caus ng ur ob Th qu stio of he he uffl isneed should be hought
he
CARLYLE RECOMMENDATION
ul
5F BAFFL
6(n
om
long stroke compressors.
PLATE
ffle pl te de
re basi ll pl ni
ba prob em
us
ff fuJIlo d, bu
orif
us
pl
to reat ve
part lo
06D/E
OI
ON
-M
.13,16,1
ff
20CF
O IA .
pr ssur
pl
vibr tion prob ms
drop an nc ra ns
redu
discharg
he
ga pulsatio on
ay ppea be ause of he lowe mass flows.
DISCHARGE BAFFL
PLATE
HO ES OIA. B.C.
HO ES
S50 LOW TEMP. APPLICATIONS
06D/E
D I C HA R
B AF FL E P L T E
(CONT.)
DIA.4-HOLE
MEDIUM
TEMP APPLICATIONS
LO
TEMP APPLICATIONS
MEDIUM TEMP APPLICATION
rl reco mend hangin he piping geometry and/ or adding clamps or effect ve mean of redu in discharg in vibr tion prob ems. Baffle pl te ca capacity an
uffler as th os be nexpensive
performance. RE
RE
TC
CO NE TI
pressure switches Usin tubing larger than ca tube (ex. 1/4" tubing ma result in linebreak becaus re fe du hr he ou pa ng pe on F/ re ul lines.To re ed he si ua on rl hanged from hard to soft 1/4" oppe ub ng nd el minate he
, , " ,
............
r-;............ .........__"'
i'.._,
~-.......,
~-......., l'--..'"
i'...'"
:--.,
.........
........
--.............
............
~"' r--.._-.........
..
-,
~"""
:--...." , " " " :--....'
~".......... ~" ~"-. ~~
I!.....
--.............
,--......... :-......... c-
1 '- -. . . .
r -- -. . .
r-,
~'-..: " - . . . . .
-,
..... 2'.....-"""'" 0-...' ,' ,--........: t".....-"""""_ ....
~ " " ' ","'"
r--...._-......., ............--.........
~"" ~"" ,"'" ,,,-~~-""
II: (/ (/
-~'\
0.._"
1'-...-""""
~~~..........
...J
\ S & ~" ": -
~<$-0r-
II:
-...... .......
......
.......
...........
.....__
-......
,-...... i ' . . . - " " " " " -........._'
"'i'
C,.)
...........l1li
1'...."'-1 -............ ........... r-......-.....; r--.._", -......
r'-."""x-c-, I'~~~"
II: 0...
r-.....
......... -.........
1'....'
"- 0...~
-:-.......
........
r-.....
,"-.., ..........- -........... ::--........ ............ '-...._-...... .......-.............
........ -.......... f ' . . . . - " " " " ............. ........ -......... 1 ' . . . . - " " " " ....... -......... 1 - " " " " ' "
C,.)
.................
7>:.,"-."
r-.....
--.... i'-......... ...............
....._
...........
!'-.
--....
--..........."
r--.......
-.........
................
~--........ .......
--......
:-........
L~
1 - - " . . .. . .. . .. . t. .....-""'_ ...............
-.......
r-..._-
---......
--......
.. ......
-,
- < : 1 ' , ,: - - .. .. .
-..............
4»-........... ...........
r-,
r-, ............
,,~ -........
"""!l
~ ~ c $ --.........' "
~\..-.........
---........
--.............
C"a.
..... r--.
......
---......
u::-
r-..
._
:-.......
-....
r--...1 "- .
-...... i'-.
............
r-
tot
"-.-.
........ . .... -.........
.......... --...... ................
,-......
._
--....... ........
...... --...... ....
........
--....
.............. -....... .....
.-.............
,-.........
-.
""
......_ ::----
i'-...
t-.....
-......
II: ::::l II:
r:---
0...
...._-
:!
........... ........... ...........
!!
-....... r--.../
~-
II:
rY" It
r.......
r1'.....' 1'....'
~-.......
lSI
III
;:
10
03S/.1.::1A.lI0013A
l!!
OINOS
;:
r-
C\I
"-
K~
1"--..,""'-.
t " - . ' - - . . I'..,
"""" ","""
"""" i"..."""
e-, ....... t'0.. "-
r-,'" r-,"""-...... ~""-
"'""" I,
a: C/) C/)
a: ..
...J
CD
'"
,,"" r-...~
1 ' -- - - . . .. . . t-..... i ' . , " " -........" I'.... 1-....' f"-....."l t -. . . . . . . . ","r-...~ !'.......~ I" I'.... r - . . . " ' " t - .............
~""""
i " . . . ' - . . . . " " " <:-.
r--..."'"
f"..."
1'-...." 10..." 1'-...."
''''''
III
r--..............
1"'-.."
f'-." I,
I"-......
............ ['.....
1'-..""
...........,
..............
-..........
....... - .
_'
'"' '"'
r---....
...............
.....
r-.. r-..
..._~
...._
........._
1"-......'
F.;;:::::
......
r-...
........
l'--. I-.....
.......
I'--
--
-.........:::::
........_
, N . .. .. .. .. .. .
..............
........._
tJ.,;,'-...........
" " " " " ' ' ,. . . ..'-...:.'" . . .. . .
~~ ............. r-.......... .... '?IS'~
r-;
~~''''''''''''''t'-.... ( ) I ~ ,
r-,
I'.....
O()l~K""-
r-
III
--.......
.....
...__ r-._ -..... -.......
""
f':::
a:
..,_..,
::::> lSI
!:;
a,
.......:.:: lSI
:!
'"
........::..:.
t.
"-
fY
.........
...... ......
~~'"
~~
--.:.
..... f....
,"
- - 1tb-~ -< """ ",
a:
..... t-....._
....
1ft
r-......
r-....... ........_ r--.. ..............
...............
t--....'
I'-..
--.......
f-.....
t--...
"
",-.........., ........
......
I"""---...
r-....----; tr-........., t-....':::--... tr-.........'
tr-......"" ......... ",,,,,
..........
......
I-.....
..............
t........,""
.........
t'r-...""-
r - -- .. . . .
.... ,,~ K'=" r-,........, '" h§
........ " " , , '
~"'" ,,",",' ~" '"''' ,,"'-' 2'-..'-' "" r-..."'-" ,,,,,C'-
f....-"';;""
"'. .............
-; .-
r-
t-..." 1'-...."'" """-'" r-..."" r-.....""- 1"- '" r-...""-
'"
1'-.............. -,
..........
."". ..........
1'-...' 1"-..'
II
a:
~"""
-: II
III tIC>
Ii
..........
r-J '\
r-,
........
III
III
!!
II
lI' C\
.. a:
-,
r-, .-, f"............ t-., ['....'-
r--....~
r--....""
....
......
........... t"-....'- ""-. r--..... ......... .
t - - .. . . .. .. .. .
0...,t " - . . . . " " - .
,,"-..
l'...'-'
s-
10"""-. r-..' 1 ' - . . . . . . . . . . . ............
I:'.....
r - .. . . .. .. ..t--...' .
..............
..............
""t:
. .. .. .. .................
- -. ,
.........
::--...."
['.._""-..
~~
r-....--""""": " " ' - ' ."-.......... ....... ................. C'--........... ~ " " ' - ,,,- ",,- ~-..........:t: ''-..." . . . . . _. ........ ~~
t"-."'-' ""-..~ r--...""" t--..."""'-. 1:'..." ['...,. ......... l'--.
i'.."...... "-"'"
"'''-f"'..,.'-
I " " " :--."
c(
..
i'.." "'-" ~~
II
......
~ "
..
<>v~~
...J
"'''
-.....
.......
..........
.......
..........
.......
:-......
t--.
r0I--...
--:.....:
r--..... r--..... ....... "--
....... ...........
.....
..... :I .... .....:;
""""
'f....
r........
-,
...........
r--, -,
.......
..............: ............
......
................ t--.............. -.......:::
r-......' r-....."'"
f':::
"l'-..."-..
............. ..............
f....~
f....""'"
1'....."" "'-..' "'-.."'" r-."" r .. . . . . . . r---_ .................
~oSI~~,~'" ~ ~ " ~' .
........... ............ ........
r- r-, : - - e .
.........
................
.............
.......
,........__
......
:::>
II til
:!
( ) ' I > ; , " i'.. r- i'...i r-<_1-b-Jr-.,,.' ...... ~~ .. ....""",,19/~:"..... ~~<$-
,,,- ~~ ~~
..
!!
III
Q -a "
II:
::
"'-..
r-.....7
"'-t
C'
II
r-.-
......
"r....."
LL
....,.;:
................ ...................
i'... ....... i'... ........
t"-.."" f'.."" ,-,,,,,,,,,
II
"-
........
~~
CI) CI)
...............
t-....,. ........
........
i'.. '0
::
.........:..:
1 ' - .. . . .. .. . ................. I e ' "" "
"'-,~
" " . ' ,,~
::
......
r-c-; I'-...~
1'-..'(
ro
t'..., ........ t-....:-"""
II: U. II:
.........
r"::
:8
'I
i'...""
!'-..I
ro
i'...\
ti
.......
I'l
:I
on
ca
-III
III
lIi
ca
-III III
III
C\J C\J
03 1.
lI0013
NO
II:
