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Products for the Carbon Black Industry 01
Berio Lied for Clarinet Solo
2x600 MW SUB-CRITICAL COAL BA SED TPP. DERANG, ANGUL DIST, ORISSA. TSPL REPLY TO JITPL COMMENTS ON (dt: 30-12-10)
TITLE: P&ID Diagram HFO sys tem TSPL DOC. NO.: TSPL-P174 -PID-201Rev 00 Sl No 1.1
1.2
1.3
JITPL/TCE COMMENTS
HFO unloading pump head calculation shall be furnished.
For Unloading pump head calculations please refer Doc. No. TSPLP174-CAL-106 and same has been submitted to you.
Vent and drain line shall be provided on the U/L header at both the ends.
We have given one vent and one drain to the 150NB unloading header and One more vent and drain is not required.
Pipe line sizing calculations shall be furnished.
For Pipe line sizing calculations please refer Doc. No. TSPL-P174CAL-114 and same has been submitted to you.
HFO unloading pump GA drawing shall be furnished..
For HFO unloading pump GA drawing please refer Doc. No. TSPLP174-DTS-701 and same will be submitted after approval of this P&ID.
Instrument air requirement shall be provided.
Approximately 10NMCH
1.4 1.5
1.6
1.7 1.8
THERMOSYSTEMS REPLY DATE: 17.01.11.
Terminal point for return line from boiler with respect to the HFO tank dyke wall shall be indicated.
GA drawing for oil water collection and separation shall be provided. Insulation thickness calculation shall be furnished.
1.9
I&C comments are attached separately along with this transmittal letter (Annexure-1).
1.10
Consultant name in the title block “TCE” shall be corrected to “TATA” with TATA symbol.
As per TCE technical specification section C8, Sheet 1 of 1 Return line from boiler up to tank nozzle is in customer scope and same is indicated in the drawing please accept the same. For GA drawing for oil water collection and separator please refer Doc. No. TSPL-P174-GAD-222 and same will be submitted later. For Insulation thickness calculations please refer Doc. No. P174-CAL-115 and same has been submitted to you. Noted.
TSPL-
Consultant name in the title block “TCE” is corrected to “TATA” with TATA symbol in the revised drawing.
2x600 MW SUB-CRITICAL COAL BA SED TPP. DERANG, ANGUL DIST, ORISSA. TSPL REPLY TO JITPL COMMENTS ON (dt: 30-12-10)
Control valve on the auxiliary steam shall control t he HFO tank temperature i.e. the floor coil heater. TSPL shall provide the Control Valve on each of the inlet auxiliary steam header lines to the HFO tanks with necessary interlocks for HFO Tank #1 and Tank#2 temperature control. TE 00EGB02CT001 of HFO Tank#1 and TE 00EGB05CT001 of HFO Tank#2 shall be interlocked with the control valve of the respective Auxiliary steam headers to Tank #1 Level signals from level transmitter 00EGB02CL001, Low Level Switch 00EGB04CL001, High Level Switch 00EGB03CL001 shall be hardwired to DCS for monitoring. All pressure indicators and differential pressure indicators for HFO service will be provided with diaphragm seals. The LPBS Start/stop for all the pumps shall be explosion proof as per hazardous area requirement. Bidder shall supply PLC/Relay based local Control Panels along with all necessary hardware and wiring to meet the minimum operation and Control requirements.
There is a separate P&ID for Steam & Condensate System vide Doc. No. TSPL-P174-PID-204 please refers the same.
Noted. We would like to clarify that from FOHS PLC Panel to DCS will be communicated through communication cable as per the Technical Specification (Control Philosophy note point no. 1). Noted and Confirm. Noted and Confirm. Please note TSPL are providing one common PLC system for HFO, LDO and HSD system as per the system requirement.
2x600 MW SUB-CRITICAL COAL BA SED TPP. DERANG, ANGUL DIST, ORISSA. TSPL REPLY TO JITPL COMMENTS ON (dt: 30-12-10)
Additional Comments on PIDs 1.0 a b c d e f 2.0 3.0 4.0
5.0
Tag Nos listed below are repeating in HFO,LDO and Diesel PIDs
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Low Level Switch LDO/Diesel Storage Tanks 00EGB04CL001, High Level Switch LDO/Diesel Storage Tanks 00EGB03CL001 Diff. Press. across strainer of LDO/Diesel/HFO unloading pumps 00EGC04/05CP001 Diff. Press. across strainer of LDO/Diesel/HFO unloading pumps 00EGC01/02CP001 Diff. Press. across strainer of Diesel unloading pumps 00EGC04CP001 Flow Meter of HFO/Diesel storage tank inlet line 00EGC01CF001 TSPL shall furnish the control philosophy, Erection Sketches and Data sheets for all the instruments. Pressure instruments shall be provided with suitable manifolds and isolation valves. Interlocks shall be indicated with appropriate description. For drives, apart from the local push button operation for start/stop, process interlocks shall be realized in the PLC for remote operation. Operation of the drive from PLC shall only be possible upon fulfillment of all process & protection interlocks.
Noted and Incorporated.
Please note that we have already submitted control philosophy and Data sheets for all the instruments to you as a separate document for approval. Noted and Confirm. Confirm.
Noted and Confirm.
2x600 MW SUB-CRITICAL COAL BA SED TPP. DERANG, ANGUL DIST, ORISSA. TSPL REPLY TO JITPL COMMENTS ON (dt: 30-12-10)
TSPL shall check the tag No. repetition in the PIDs for all the instruments and valves and correct The tag Nos of valves, pumps and strainers are overlapping. The same shall be checked and corrected.
