BFP Test Procedures

Commissioning Measures Form for Approval

No.YDTD-TS03

Project

name

Phase I of 2×330MW Project of Tengda

Coal-fired Power Plant in India

Contract

No.

To: Tengda Project Department of Sichuan Machinery & Equipment Import & Export Corporation

Now it is submitted for the examination and approval with the electrically driven feed pump commissioning

technical measure of phase I of 2×330MW project of Tengda Coal-fired power plant in India,

Document No. is: QJCS-03.

Appendix: electrically driven feed pump commissioning technical measure

Contractor: Sichuan Tongneng Power Technology Co. Ltd.

Project principal Date

Examination and approval opinions of the project supervision department:

Project supervision department (seal)

Supervision engineer: Date

Chief supervision engineer: Date

Phase I of 2×330MW pro jec t o f Tengda Coal - f i red power p lant in India Electrically driven feed pump commissioning technical measure

第 2页共 21页

Examination and approval opinions of the owner

Legal person of the project (seal):

Owner representative Date

Contractor: Sichuan Tongneng Power Technology Co. Ltd Mar. 2008

Phase I of 2×330MW Project of Tengda Coal-fired Power Plant in India

Electrically driven feed pump

commissioning technical measure

Sichuan Power Industry Commissioning Test Institute Sichuan Tongneng Power Technology Co., Ltd

Mar. 2008

Examination and Approval Record for

Documents

D o c u m e n t

n a m e Electrically driven feed pump commissioning technical measure

D o c u m e n t

N o . YDTD-QJCS-03

The 1st

version

Date of

publication

The

2nd

version

Date of

publication

Main revised content

E d i t i o n n o .

The 3rd

version

Date of

publication

Main revised content

M a n a g e r ’s

a p p r o v a l o f

t h e

c o m m i s s i o n i

n g p r o j e c t

D a t e :

Phase I of 2×330MW Pro jec t o f Tengda Coal - f i red Power Plant in India Electrically driven feed pump commissioning technical measure

第 1页共 15页

R e v i e w o f t h e

p r i n c i p a l o f

p r o f e s s i o n a l

g r o u p o f

c o m m i s s i o n i

n g p r o j e c t

D a t e :

C o m p i l e r o f

t h e t e c h n i c a l

d o c u m e n t

D a t e

content

1. Compilation purpose .................. 错误！未定义书签。

2. Compilation reference ................ 错误！未定义书签。

3. Commissioning quality standard and object ............. 2

4. Responsibility division .............. 错误！未定义书签。

5. System brief introduction ............ 错误！未定义书签。

6. Conditions prior to commissioning .... 错误！未定义书签。

7. Commissioning work procedure ......... 错误！未定义书签。

8. Commissioning step ................... 错误！未定义书签。

9. Safety measure ....................... 错误！未定义书签。

10. Appendix ............................. 错误！未定义书签。


第 2页共 15页

1. Compilation purpose

1.1 To instruct and standardize the commissioning work of system and equipment, and

guarantee safety and normal operation thereof, this measure is hereby compiled.

1.2 Inspect the electrically driven feed pump electric and thermal work protection interlock

and signal unit, and determine the reliability of the action.

1.3 Inspect the system and equipment operation status, check the system performance, find out

and eliminate the possible defects.

2. Compilation reference

2.1 Thermal Power Plant Basic Construction Engineering Startup and Completion Acceptance

Code (1996version) power construction [1996]159#

2.2 Power Construction and Acceptance Technical Specification (Steam

Turbine )DL5011-1992

2.3 Power Construction and Acceptance Technical Specification (Pipe )DL5031-1994

2.4 Standard for Quality Inspection and Evaluation of the Adjustment and Commissioning in

Thermal Power Project, Construction Quality [1996]111#

2.5 Regulations for the Startup and Commissioning of the thermal Power Projects,

Construction Quality [1996]40#

2.6 Manufactory drawings, installation and operation instructions, quality assurance book and

ex-factory certifications

2.7 Design documents, drawings, specifications, and commissioning documents as well as

conference summary, etc.

2.8 Equipments supply contract, and the international and national standards stated therein

3. Commissioning quality standard and object

3.1 It will conform to the quality standard of related electrically driven feed pump system and

equipment of Standards for the Inspection and Assessment of the Adjustment and

Commissioning Quality for Thermal Power Projects (1996 version), and quality

requirements of commissioning contract.

3.2 The sub-plant trial operation, attestation and acceptance are qualified, and meet the


第 3页共 15页

complete set startup requirements.

4. Responsibility division

According to the statements of the administry newly issued Startup Regulation, and the

Commissioning Contract, the responsibilities of each party are as following:

4.1 Installation unit:

4.1.1 Responsible for individual equipment commissioning and trial operation work.

4.1.2 Responsible for isolation work of the system.

4.1.3 Responsible for repair, maintenance and defect elimination of the trial operation

equipments.

4.1.4 Prepare the necessary repair tools and materials.

4.1.5 Cooperate with the commissioning unit for subsystem commissioning.

4.1.6 Responsible for attestation work after trial operation of system sub-section.

4.2 Manufacturing unit:

4.2.1 Responsible for startup/closedown, operation regulation and accident treatment of system

trial operation.

4.2.2 Responsible for hanging the formal brand mark of the related systems and equipments.

4.2.3 Prepare the regulations, tools, and record reports, etc.for operation;

4.2.4 Responsible for patrol inspection and normal maintenance during trial opereation.

4.3 Commissioning unit:

4.3.1 Responsible for compiling trial operation scheme together with technical clarification.

4.3.2 Prepare the apparatuses, instruments and tools for the related tests.

4.3.3 Responsible for command and control work of subsystem commissioning.

4.3.4 Responsible for test data record and sorting.

4.3.5 Fill in trial operation quality evaluation table.

4.3.6 Responsible for attestation work after trial operation of the system and subsystem.

4.3.7 Compile the commissioning report.

4.4 Individual commissioning of pump group will be responsibility of the installation unit,

with parcitipation of commissioning unit. The sub-system commissioning of pump group

will be responsibility of commissioning unit, with participation and cooperation of the

installation unit and other units. The electrically driven feed pump system commissioning

will be carried out with uniform instruction of trial operation team, it will be implemented

by industrial water system commissioning professional team, the steam turbine discipline


第 4页共 15页

will take the lead, with cooperation of electric, thermal control and other disciplines.

5. System brief introduction

1# and 2# turbine water system of phase I of 2×330MW newly built project of Tengda

Coal-fired power plant in India will be respectively mounted by three sets of 50%B-MCR

electrical speed regulation water-feeding pumps. Three sets of 50%B―MCR water feed frount

mounted pumps and 2 sets of 100% capacity high pressure heaters and one set of steam cooler.

The operation mode is: two sets are operated, and one set for standby.

5.1 Front mounted pump

model：YNKn300/200-20J

mode ： Single stage double suction centrifugal-chamber double bracing

centrifugal pump

Pump medium: boiler water supply

Flow：599.39 t/h

inlet pressure：1.119 Mpa

outlet pressure：1.526 Mpa

lift：47 m

shaft power：93 KW

rotating speed：1490 r/min

necessary net positive suction head：3.4 m

efficiency：82.2%

5.2 motor

model：YKS710-4

power：5300 KW

voltage：6.6 KV

current：594 A

startup current multiplying power ：6

rotating speed：1490 r/min

5.3 Coupling

model：R71K.2E


第 5页共 15页

output/input rotating speed: 5900/1490 r/min

speed regulation scope：20%～97%

rated transfer power：3984 KW

5.4 feed pump

model：CHTC5/6SP

mode： horizontal double shell sectional multi-stage centrifugal pump

pump medium： boiler water supply

lift：2406 m

inlet pressure：1.526 Mpa

outlet pressure：21.962 Mpa

flow：638 t/h

tap outlet pressure：9.5 Mpa

tap flow：35.64m3/h

necessary net positive suction head：35.64m

efficiency：82.8%

rotating speed：5586r/min

rotating speed: clockwise rotation (look at the pump at the drive side)

5.5 Lubicating oil cooler

cooling area：16 m2

cooling water quantity：120 m3/h

cooling water temperature: ≤38 ℃

cooling water pressure：0.4～0.6 Mpa

5.6 Work oil cooler

cooling area：54 m2

cooling water quantity：120 m3/h

cooling water temperature: ≤38 ℃

cooling water pressure：0.4～0.6 Mpa

6. Conditions prior to commissioning


第 6页共 15页

6.1 The oil system circulatiion is qualified and completed (physical and chemical index and

mechanical foreign substances content will meet the requirements), the pipeline system has

been recoverd, the oil tank is filled by qualified new oil in the high level (level indicator),

together with sufficient qualified oil.

6.2 Electric pump motor air cooler, lubricating oil cooler, work oil cooler cooling water

system is flushed and qualified, and the pipeline connection is recovered; openness cooling

water system, closeness cooling water system commissioning work is qualified, and it is

normally put into operation.

6.3 Electrically driven feed pump electric circuit connection is proper and completed, the

motor insulation test is qualified, and test and inspection of motor electric heater insulation,

and motor winding resistance are qualified.

6.4 Electrically driven feed pump auxiliary oil pump trial operation is qualified, lubricating oil

pressure switch setting value is completed, and lubricating oil pressure low interlock and

protection have been inputted.

6.5 Electrically driven feed pump various interlock and protection tests have been completed

and jointly signed, the interlock and protection have been putted into work with reliable

property.

6.6 The low pressure water supply pipe, front mounted pump and main water feed pump

connection pipes are flushed and qualified as per requirements of manufacturer; low

pressure water supply pipe, front mounted pump and main feed pump connection pipe,

main water supply pipe, recycle pipe, water balance pipe, intermediate tap pipe, etc. have

been cleaned up, accepted and completed.

6.7 Condense water system commissioning is completed, one condense pump is normally

operated, the deaerator main and secondary regulating gates have the normal function, and

can satisfy with normal water requirements of deaerator.

6.8 Seal cooling water pipe flushing is qualified, together with conditions of operation.

6.9 The electric pump front mounted pump packing cooling water pipeline is flushed and

qualified with operation conditions.

6.10 Deaerator installation is completed, and carefully cleaned up, as well as filled by water to

the normal level via the condense pump.

6.11 The motor ail cooling system watering is qualified and inputted.

6.12 Electroc pump recycle flow switch test and calibration are completed, commissiong of

recycle gate actuator has been completed with normal action.


第 7页共 15页

6.13 Pump group shafting center acceptance is qualified, and secondary grouting strength meets

the quality requirements.

6.14 Valve instruments and meters for all pump groups and related trial operation systems have

been hung by nameplates.

6.15 All instruments and meters of thermal work and electric work with relation to pump

groups have been mounted and commissioned.

6.16 The coupling scoop pipe is flexible, adjustable without seizing, and the electric and

manual operation is normal.

6.17 The trial operation site and road are smooth with bright lighting, the feed pump panel and

related panel work have been completed and cleaned up.

6.18 The firefighting equipment and preparation work have been carried out well, together with

trial operation safety measures.

6.19 The trial operation organization has clear work division, and the trial operation and

installation staffs are all ready.

6.20 System commissioning organization and supervision institution have been set up, with

orderly work execution.

6.21 The commissioning document, tool, instrument, and record table have been prepared well.

7. Commissioning work procedure

The electrically driven feed pump system commissioning work will be carried out as per

following flow chart: Commissioning technical scheme clarification

Commisioning conditions determination;

Interlock protectionand alarming test

Electrically driven feed pump trial operation

Pipeline flushing

System operation and dynamic regulation

Main equipment installation and individual commissioning are completed

Instrument constrol installation and related commissioning are completed;

Electric installation and related commissioning are completed;

Pipeline valve installation and commissioning

Safety condition is satisfied


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Interlock protection test

Alarming test

调试技术方案交底

调试需满足的条件确认

联锁保护及报警试验

电动给水泵组试运行

主设备安装及单体调试结束

仪控安装及有关设备调试结束

电气安装及有关设备调试结束

管道阀门安装调试

安全条件满足

联锁保护试验

报警试验

系统有关管路冲洗

系统投运及动态调整

8. Commissioning step

8.1 Motor individual rotation

8.1.1 Conditions inspection prior to startup

8.1.1.1 Motor insulation inspection is qualified;

8.1.1.2 The motor rotor is manually turned freely;

8.1.1.3 Motor air cooler, lubricating oil cooler cooling water pipe flush is completed, and the

cooling water system is inputted;

8.1.1.4 The motor and electric pump front mounted pump, and the motor and hydraulic

coupling are separated;

8.1.1.5 Determine the oil system flushing is qualified, the bearing is cleaned up and

recovered, the lubricating oil pump is started up on the operation statation, the oil

pressure, oil temperature and bearing seat return oil statuses are checked, and the

equipments and operation will be normal.

8.1.1.6 When the oil temperature is 35-45 , the lubric℃ ating oil pressure is regulated as

setting value;

8.1.1.7 check the motor bearing temperature and the stator coil temperature indication;


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8.1.1.8 The feed pump power supply is placed at the test location, and the following interlock

protection tests will be carried out:

a) Field accident button pump stop test;

b) lubricating oil low pressure test;

c) motor bearing temperature and coil temperature test;

d) The temperature alarming signals are normal.

e) After above interlock protection tests are qualified, input the motor power supply.

8.1.1.9 Input the motor protection and interlock.

8.1.2 Motor trial operation

8.1.2.1 Spot drive the motor on the operation station,and check whether the rotating direction

of the motor is proper.

8.1.2.2 Startup the motor on the operation station, and check its operation status, such as

startup current, abnormal vibration, noise, friction firing or smoking, control room

and field signal and instrument indication.

8.1.2.3 When inspection of above items is normal, record the operation parameters of the

motor by set time.

8.1.2.4 When the lubricating oil is 40 , ℃ input the oil cooler water side, and exhaust the air.

8.1.2.5 The feed pump motor trial operation will be over 8 hours, the operation parmeters

will be stable and reaches the design requirements, and then stop the motor.

8.1.2.6 Record the motor coasting operation time.

8.2 Motor and coupling trial operation

8.2.1 on the basis of completion of motor trial operation, carry out inspection in advance.

8.2.1.1 Connection between the coupling and motor is completed with proper center, the

wheels among motor/front mounted pump, and coupling/electric pump are all

separated;

8.2.1.2 The instruments and meters on the coupling have been calibrated and installed, and

inputted;

8.2.1.3 The oil tank level is normal, and the lubricating oil strainer is inputted at one side;

8.2.1.4 Start up the auxiliary oil pump, when the lubricating oil temperature is above 35 , ℃

the lubricating oil pressure will be set value.

8.2.1.5 Electric cooler, lubricating oil cooler and work oil cooler are all inputted.

8.2.2 Motor and coupling trial operation

8.2.2.1 Provide the coupling scoop pipe power supply, inspect the coupling scoop pipe


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manual and remote control action that will be proper and flexible, place the scoope

pipe in the minimum speed location（0～5％）.

8.2.2.2 The electric pump motor will transfer the power supply, and the electric pump will be

started up on CRT.

8.2.2.3 Inspect the motor and compling rotation direction.

8.2.2.4 Inspect the coupling vibration without abnormal sound.

8.2.2.5 Inspect the leakage status of the oil pipeline.

8.2.2.6 Closely supervise the operation sound and vibration of the hydraulic coupling.

8.2.2.7 Inspect the lubricating oil and work oil pressure.

8.2.2.8 Inspect the system and record the main parameters.

8.2.2.9 Input the oil cooler, regulate the oil temperature till it is stable.

8.2.2.10 After the system is stable, slowly regulate the coupling scoop pipe, thus the coupling

output speed is gradually increased, and it will be stayed by 10min for every 10%

increse of scoop position, inspect the operation status, and record the operation

parameters as per requirements.

8.2.2.11 The rotating speed is raised to nearly 5000r／min for stable operation inspection, and

then it will be gradually lowered to approx. 1800r／min.

8.2.2.12 If the coupling operation is above 2 hours, stop it, and determine that the auxiliary oil

pump is automatically started up, otherwise it will be manually started up and find out

the reason thereof.

8.2.2.13 Record the motor coasting operation time.

8.3 Feed pump group start up test

8.3.1 Startup conditions

8.3.1.1 The wheel connection between the coupling and main feed pump is completed, and

the center protection cover is mounted.

8.3.1.2 The pump group inlet pipe water flush is completed, and the system is recovered.

8.3.1.3 The instruments and meters on the feed pump group have been calibrated and

qualified, sewage discharge of the transducer and indication instrument tubes has

been completed and in the input status; the pump group sequence control system

(SCS) interlock protection has been completed.

8.3.1.4 Operate the circulating water, openness cooling water, closeness cooling water, and

condense makeup water system.

8.3.1.5 Deoxygenation water tank is filled by water to the normal level, and the deaerator


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level monitoring has been inputted with normal work.

8.3.1.6 Startup the front mounted inlet water gate, and fill water in the pump, then close it

after exhausting the air; determine the closeness of electric pump outlet electric gate.

8.3.1.7 According to deoxygenation water tank temperature and pump body temperature

difference, determine whether it needs to heat the pump.

8.3.1.8 The pump group bearing cooling water and seal water pipes are flushed and cleaned

up; manually open the valve, and determine that the air is exhausted.

8.3.1.9 The electric pump protection is completed, and the protection is inputted.

8.3.2 Electric pump operation

8.3.2.1 Start up the auxiliary lubricating oil pump, raise the oil temperature, and inspect the

oil pressure, the lubricating oil pressure will be above 0.17MPa;

8.3.2.2 Check whether the sealing water is normal.

8.3.2.3 Start up the front and back stop valves of the recycle gate, input the recycle gate

automatic unit and inspect the recycle opening location; to avoid the accident water

cutoff in the electric pump operation period, during first time startup, the recucle gate

front and back stop valves will be locked, after opening the recycle gate, the gas

source will be cut off.

8.3.2.4 The scoop pipe will be set in the lowest rotating speed location.

8.3.2.5 record all monitoring instrument initial values;

8.3.2.6 Determine that the field accident button is normal, together with watching of

appointed person. Input the feed pump power supply, and interlock protection;

8.3.2.7 Select the electrically driven feed pump in the operation station, and start up it.

8.3.2.8 Inspect the pump group operation status, such as startup/stable current, abnormal

vibration/noise, oil/water system leakage, friction fire or smoing, and pressure

difference of front mounted inlet strainer, etc, and the pump will be stopped

immediately for any abnormal status for treatment.

8.3.2.9 When the lubricating oil reaches the set value, it is time lagged, and the auxiliary oil

pump will be automatically stopped.

8.3.2.10 After 20-30min trial operation, if normal, the speed will be gradually raised via

coupling scoop pipe, every 10% increase of scoop pipe, all bearing vibration will be

measured, and the scoop pipe position, inlet and outlet pressure, intermediate tap

pressure, rotating speed, oil pressure, oil temperature, bearing temperature, motor coil

temperature, etc. (the lubricating oil, work oil cooler and motor ail cooler will be


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inputted according to temperature rise status ).

8.3.2.11 When the feed pump outlet pressure reaches the rated one, overall inspect the system

status fast, if normal, lower the rotating speed to 80% rated pressure for 2hours stable

operation.

8.3.2.12 After 2hours stable operation, the water supply/temperature reduction pipes will be

flushed at appropriate rotating speed.

8.3.2.13 After completion of all trial operation items, the rotating speed will be gradually

lowered, when the scoop pipe is in the lowest location, stop the motor and record the

coasting operation time, when the lubricating oil pressure is 0.15MPa, the auxiliary

oil pump will be automatically or manually started up.

8.4 High pressure water supply flush

8.4.1 Flush purpose

Flush the hard foreign substances as welding slag, rust skin,and mud sand, etc. remained

in the pipe during manufacture, transport and installation process.

8.4.2 Flush conditions

8.4.2.1 The pipe supports and hangers will be firm, and the temporary system drainage pipe

will be taken by necessary reinforcing measures to avoid danger.

8.4.2.2 All electric gates of the high pressure water supply system are commissioned and

completed, with flexible switch, proper indication and action;

8.4.2.3 The chemical workshop has sufficient desalt water stored.

8.4.3 Flush scope: feed pump outlet, high pressure water heater bypass, water supply operation

table, economizer inlet, temporary discharge pipe.

8.4.4 flush method: after the feed pump part trial operation is qualified, start up the feed pump

and flush by desalt water with great flow mode not exceeding rated current;

8.4.5 Flush qualified standard: visually inspect the outlet water quality, if it is consistent with

the one of inlet of water pump, it will be qualified.

9. Safety measures

9.1 The feed pump will be operated in the design operation cuve scope.

9.2 During electrically driven feed pump water inflow, the air of the mechanical seal part will

be exhausted repeatedly till it is completely exhausted, and the valve will be closed.

9.3 After stop of the pump, the operation time of the auxiliary oil pump will be not less than

5min.


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9.4 After stop of the motor, it will have certain time interval for the next time startup, usually it

is over 20min.

9.5 During electric pump startup, the accident button will be controlled by appointed person,

and the pump will be immediately stopped after startup for any abnormal and emergency

statuses.

9.6 Within 2 seconds after closing the switching, if the electric pump cannot be operated, or it

is tripped in the trial operation process, the trial operation will be immediately stopped, and

cannot be started up again till the reason is found out.

9.7 During electric pump operation, the trial operation staff will leave the rotating part.

9.8 The trial operation will be uniformly directed, and the communication between control

room and field is smooth.

10. appendices

a) Conditions inspection table

Electrically driven feed pump system trial operation conditions inspection table

System description: electrically driven feed pump system

Determination and signature No.

Conditions description

Installation party

Commissioning party

Supervison party Owner

1

The oil system circulatiion is qualified and

completed, the pipeline system has been

recoverd, the oil tank is filled by qualified

new oil in the high level (level indicator),

together with sufficient qualified oil.

2

Electric pump motor air cooler, lubricating

oil cooler, work oil cooler cooling water

system is flushed and qualified, and the

pipeline connection is recovered; openness

cooling water system, closeness cooling

water system commissioning work is

qualified, and it is normally put into


第 14页共 15页

operation.

3

Electrically driven feed pump electric

circuit connection is proper and completed,

the motor insulation test is qualified, and

test and inspection of motor electric heater

insulation, and motor winding resistance

are qualified.

4

Electrically driven feed pump auxiliary oil

pump trial operation is qualified,

lubricating oil pressure switch setting value

is completed, and lubricating oil pressure

low interlock and protection have been

inputted.

5

Electrically driven feed pump various

interlock and protection tests have been

completed and jointly signed, the interlock

and protection have been putted into work

with reliable property.

6

The low pressure water supply pipe, front

mounted pump and main water feed pump

connection pipes are flushed and qualified

as per requirements of manufacturer; low

pressure water supply pipe, front mounted

pump and main feed pump connection pipe,

main water supply pipe, recycle pipe, water

balance pipe, intermediate tap pipe, etc.

have been cleaned up, accepted and

completed.

7

Condense water system commissioning is

completed, one condense pump is normally

operated, the deaerator main and secondary

regulating gates have the normal function,


第 15页共 15页

and can satisfy with normal water

requirements of deaerator.

8

The pump group bearing cooling water pipe,

mechanical seal cooling water pipe flush is

qualified.

9

Deaerator installation is completed, and

carefully cleaned up, as well as filled by

water to the normal level via the condense

pump.

10 The motor ail cooling system watering is

qualified and inputted.

11

Electroc pump recycle flow switch test and

calibration are completed, commissiong of

recycle gate actuator has been completed

with normal action.

12

Pump group shafting center acceptance is

qualified, and secondary grouting strength

meets the quality requirements.

13

Valve instruments and meters for all pump

groups and related trial operation systems

have been hung by nameplates.

14

All instruments and meters of thermal work

and electric work with relation to pump

groups have been mounted and

commissioned.

15

The coupling scoop pipe is flexible,

adjustable without seizing, and the electric

and manual operation is normal.

16

The trial operation site and road are smooth

with bright lighting, the feed pump panel

and related panel work have been

completed and cleaned up.


第 16页共 15页

17

The firefighting equipment and preparation

work have been carried out well, together

with trial operation safety measures.

18

The trial operation organization has clear

work division, and the trial operation and

installation staffs are all ready.

Contractor: Sichuan Tongneng Power Technology Co. Ltd

Date day month 2008

b) Logic inspection table

Electrically driven feed pump system interlock logic inspection table

No. Item Set value Interlock protection action

一、I. Start up conditions

the front mounted valve inlet is opened.

the recycle valve is fully opened.

the deaerator level is normal

The lubricating oil pressure is normal ≥0.17MPa


第 17页共 15页

scoop pipe openness ≤5％

no reverse rotation of the feed pump

二、II. pump group protection conditions

the the deaerator level is low tripping of feed pump

the feed pump is operated, and its inlet pressure islow. tripping of feed pump

the feed pump is operated and the inlet electricgate is closed.

延时 2 S time lag2s tripping of feed pump

the lubricating oil pressure is low ≤0.08 Mpa tripping of feed pump

the feed pump is operated, the pump inlet flow is＜ t/h, and the recycle pump is not fullyopened.

tripping of feed pump

The front mounted pump radial bearingtemperature is high ≥90℃ tripping of feed pump

the main pump radial bearing temperature is high ≥90℃ tripping of feed pump

the main pump thrust bearing temperature is high ≥90℃ tripping of feed pump

the coupling thrust bearing temperature is high ≥95℃ tripping of feed pump

the coupling radial bearing temperature is high ≥95℃ tripping of feed pump

the motor bearing temperature is high ≥90℃ tripping of feed pump

the work oil cooler inlet temperature is high ≥130℃ tripping of feed pump

the work oil cooler outlet temperature is high ≥85℃ tripping of feed pump

the lubricating oil cooler inlet temperature is high ≥70℃ tripping of feed pump

the lubricating oil cooler outlet temperature is high ≥60℃ tripping of feed pump

the front mounted pump mechanical sealing circulating liquid temperature is high ≥95℃ tripping of feed pump

the main pump mechanical sealing circulating liquid temperature is high ≥95℃ tripping of feed pump

the motor stator coil temperature is high ≥130℃ tripping of feed pump

三、III. Pump group interlock

A feed pump operation; B feed pump interlock input, and main pipe pressure is low. Interlock startup the B feed

pump.

A feed pump operation; B feed pump interlock input; A feed pump switch separation signal is sent out.

Interlock startup the B feed pump.

A feed pump operation; C feed pump interlock input, and main pipe pressure is low. Interlock startup the C feed

pump.

A feed pump operation; C feed pump interlock input; A feed pump switch separation signal is sent out.

Interlock startup the C feed pump.

B feed pump operation; C feed pump interlock input, and main pipe pressure is low. Interlock startup the C feed

pump.


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B feed pump operation; C feed pump interlock input; B feed pump switch separation signal is sent out.

Interlock startup the C feed pump.

B feed pump operation; A feed pump interlock input, and main pipe pressure is low. Interlock startup the A feed

pump.

B feed pump operation; A feed pump interlock input; B feed pump switch separation signal is sent out.

Interlock startup the A feed pump.

C feed pump operation; A feed pump interlock input, and main pipe pressure is low. Interlock startup the A feed

pump.

C feed pump operation; A feed pump interlock input; C feed pump switch separation signal is sent out.

Interlock startup the A feed pump.

C feed pump operation; B feed pump interlock input, and main pipe pressure is low Interlock startup the B feed

pump

C feed pump operation; B feed pump interlock input; C feed pump switch separation signal is sent out.

Interlock startup the B feed pump

四、IV. Auxiliary oil pump

sequential control startup or the feed pump is inputted for standby automatic startup

the feed pump is operated and the lubricating oil pressure is low. ≤0.15 Mpa automatic startup

electric pump reverse rotation automatic startup

feed pump is operated, and lubricating oil pressure is high ≤0.15 Mpa automatic stop

五、V. recycle gate

flow of feed pump≤ m3/h Automatic startup

flow of feed pump≥ m3/h Automatic close down