CN113063599B - Method for testing emergency starting reliability of important oil system of steam turbine of thermal power unit - Google Patents
Method for testing emergency starting reliability of important oil system of steam turbine of thermal power unit Download PDFInfo
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- CN113063599B CN113063599B CN202110354779.7A CN202110354779A CN113063599B CN 113063599 B CN113063599 B CN 113063599B CN 202110354779 A CN202110354779 A CN 202110354779A CN 113063599 B CN113063599 B CN 113063599B
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- 238000012360 testing method Methods 0.000 title claims abstract description 230
- 238000000034 method Methods 0.000 title claims abstract description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000001257 hydrogen Substances 0.000 claims abstract description 28
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 28
- 238000013461 design Methods 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 claims description 187
- 239000010687 lubricating oil Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 23
- 230000003068 static effect Effects 0.000 claims description 18
- 241001584775 Tunga penetrans Species 0.000 claims description 12
- 238000010998 test method Methods 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 230000007547 defect Effects 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
A method for checking the emergency starting reliability test of an important oil system of a steam turbine of a thermal power unit comprises the following steps of; step one: before the test, the security sections of the important oil system of the steam turbine are classified according to the importance degree according to the design requirements of each plant; step two: emergency starting reliability tests of the classified important oil systems of the steam turbine are carried out according to three test items; step three: and (3) evaluating the result of the test item in the second step. The invention starts from the user side, and simulates the working condition that part of the station service loses or the security section loses pressure instantaneously before the whole set of the set starts and when the generator does not start hydrogen replacement, and the reliability of emergency starting of the important oil system of the steam turbine is checked to the maximum depth.
Description
Technical Field
The invention relates to the technical field of large thermal power generating units, in particular to a method for testing emergency starting reliability of an important oil system of a steam turbine of a thermal power generating unit.
Background
A diesel generator set and a direct current storage battery pack are conventionally configured for a large thermal power generating unit. The diesel generator set has the function of supplying power to the security section in an emergency after the power failure of the station service or the working power failure of the security section, thereby ensuring the power utilization of the load of the security section. The storage battery is a backup power supply and an energy storage element in the direct current system, and is used for providing protection and control power for important auxiliary machines of the power plant under the condition of power interruption of the plant, and simultaneously providing a power supply for the direct current oil pumps of the whole plant.
Before a large thermal power generating unit is newly built, expanded or rebuilt, performance of a diesel generator and a storage battery pack is usually tested. Usually, the diesel generator test is carried out after the single device debugging is finished, and the load of the security section carried by the diesel generator at the stage does not have all the loading conditions, so that the load test of the diesel generator often cannot meet the requirements of the design original purpose and the test simulating the real working condition in the actual operation. The test of the direct current storage battery pack is also carried out after the single equipment is debugged, and the loading capacity of a single direct current oil pump is only regulated according to the requirement of the existing standard DL/T863-2016 'steam turbine starting debugging guide rules', but the operation capacity of the storage battery pack with all direct current loads is not described. When the unit is partially or completely lost in the factory, whether the direct-current storage battery pack can be kept to be safely stopped or not is judged, and a considerable hidden danger exists. In addition, the single debugging and performance test of the diesel generator and the storage battery belongs to the working range of the electric power installation unit according to the working range division of the existing thermal power generating unit in the installation and debugging stage, and debugging personnel usually only carry out partial load test of the diesel generator and the storage battery according to actual conditions in the sub-system test operation stage. Thus, there is a "two-no-wharf" ambiguity range, where the accident tends to be hidden.
The steam turbine is core equipment of a thermal power generating unit, and an important oil system of the steam turbine is an indispensable part for ensuring the safe shutdown of the steam turbine during normal operation or accident working conditions, and generally comprises steam turbine alternating current lubricating oil, direct current lubricating oil, generator air side alternating current sealing oil, generator air side direct current sealing oil, generator hydrogen side alternating current sealing oil, generator hydrogen side direct current sealing oil, main engine top shaft oil, water supply pump small machine alternating current lubricating oil, water supply pump small machine direct current lubricating oil, induced draft fan small machine alternating current lubricating oil, induced draft fan small machine direct current lubricating oil and the like.
The emergency starting is mainly used for maintaining the operation of an important oil system of the steam turbine by the emergency starting power supply of the diesel generator and the storage battery pack when the power consumption of the thermal power plant is completely lost or the safety section loses pressure. In the commissioning stage of the thermal power generating unit debugging subsystem, the part of work is in the cross category of the electric profession and the machine profession, and the limit is unclear and the responsibility is unknown. There is no current test guideline or technical specification to verify the reliability of emergency start-up of the turbine's essential oil system.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a method for testing the emergency starting reliability test of an important oil system of a steam turbine of a thermal power generating unit, which prescribes the application range, the test purpose, the test item, the test condition, the test method, the test step, the judgment standard of the test result, the test notice, the safety measure and the like of the test reliability test.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a method for checking the emergency starting reliability test of an important oil system of a steam turbine of a thermal power unit comprises the following steps of;
step one: before the test, classifying security sections of an important oil system of the steam turbine according to the importance degree according to the design requirement;
step two: emergency starting reliability tests of the classified important oil systems of the steam turbine are carried out according to three test items;
step three: and (3) evaluating the result of the test item in the step two.
The application range of the method specifically comprises the following steps: the system is suitable for new construction/extension/reconstruction of large thermal power generating units, the units are provided with diesel generators, and the direct current system is powered by a direct current storage battery pack. In addition, the invention can be referred to by the gas unit-level gas-steam combined cycle unit.
The security section grading starting sequence in the first step is divided into I, II, III and IV according to the importance degree, and specifically comprises the following steps:
stage I includes: a main machine lubricating oil alternating current oil pump and a generator sealing oil alternating current oil pump (comprising an empty side and a hydrogen side);
stage II comprises: a small-machine alternating-current oil pump of the water supply pump and a small-machine alternating-current oil pump of the induced draft fan;
stage III comprises: a main engine top shaft oil alternating current oil pump;
class IV includes other important devices.
The test in the second step is carried out in three items, namely:
(1) Carrying out a load capacity test on the diesel generator;
(2) Carrying out a load capacity test on the direct-current storage battery pack;
(3) And (5) carrying out emergency starting test on the important oil system after the power is lost in the security section.
The emergency starting reliability test of the important oil system of the steam turbine in the second step aims at checking the reliability of emergency starting of the important oil system of the steam turbine after instantaneous power failure of the safety section A and the safety section B of the thermal power unit; the method comprises the following steps:
a) Checking the automatic starting load capacity of the diesel generator;
b) Checking interlocking starting and load capacity of the direct-current oil pump;
c) After the power failure of the station service is simulated before the whole set of the unit is started, the safety section loses voltage, and the power supply conditions of a diesel generator, a storage battery pack and UPS (Uninterruptible Power Supply, namely an alternating current uninterruptible power supply) are met, so that serious accidents such as fuel cut, tile burning and the like of a steam turbine are prevented.
The test conditions of the load capacity of the diesel generator in the second step comprise:
1) The diesel generator monomer debugging is finished, the starting and stopping are normal, and the acceptance is completed;
2) The interlocking test of the diesel generator and the safety section is finished;
3) The test of all loads of the security section is completed and the security section is qualified;
4) The machine rotor is in a static state;
5) The rotor of the small machine (comprising a draught fan small machine and a water feeding pump small machine) is in a static state;
6) The generator is not filled with hydrogen.
The method for testing the load capacity of the diesel generator in the second step comprises the following steps: and disconnecting the working incoming line power supply of the security section, and gradually starting the load of the diesel generator after the security section power supply is independently powered by the diesel generator until all the design loads are started and the running time of the diesel generator is not less than 90min under the rated capacity.
The specific operation flow of the diesel generator on-load capacity test in the second step is as follows:
1) All loads of the shutdown security A/B section;
2) The diesel generator is positioned at an automatic position, and a security A/B section main incoming line power supply is disconnected;
3) The diesel generator is automatically started, and the security A/B section is powered by the diesel generator;
4) Gradually starting the load of the diesel generator until the designed load is fully added;
5) After the load is started, starting to perform stable operation and timing, wherein the test time is not less than 90min;
6) The voltage loss time of the safety section, the voltage after the normal operation of the safety section, the current after the normal operation of the safety section, the outlet current of the diesel generator, the running parameters of each load of the safety section and the running conditions of the diesel generator (specific parameters are as follows: voltage, frequency, power, oil level, water temperature).
The load test conditions of the direct current storage battery pack in the second step comprise:
1) The direct current system completes monomer debugging and is qualified in acceptance;
2) The UPS system is debugged, can be normally put into operation and is qualified in acceptance;
3) All direct-current oil pumps of the whole factory are subjected to trial rotation and qualified in acceptance;
4) The UPS load is put into operation according to the design;
5) The main machine rotor is in a static state;
6) The rotor of the small machine (comprising a draught fan small machine and a water feeding pump small machine) is in a static state;
7) The generator is not filled with hydrogen.
The method for testing the load of the direct current storage battery pack in the second step comprises the following steps: and (3) disconnecting all charging power supplies of the storage battery, disconnecting the UPS alternating current power supply, and independently carrying the UPS system and all direct current oil pumps by the storage battery, wherein the test time is not less than 90min.
The specific operation flow of the direct current storage battery pack load test in the second step is as follows:
1) Switching off a DCS/TCS alternating current power supply and switching off a UPS alternating current power supply;
2) Disconnecting all charging power supplies of the storage battery pack;
3) The system comprises an off-line main engine alternating current lubricating oil pump, an empty side and hydrogen side alternating current sealing oil pump of a generator, an off-line main engine jigger, a main engine top shaft oil pump, a water supply pump small machine alternating current lubricating oil pump and a draught fan small machine alternating current lubricating oil pump.
4) The system comprises a starting main machine direct-current lubricating oil pump, a sealing oil empty side and hydrogen side direct-current oil pump, a water supply pump small machine direct-current lubricating oil pump, a draught fan small machine direct-current lubricating oil pump and other direct-current oil pumps.
5) Starting timing after the on-load starting of the storage battery pack is finished, wherein the test time is not less than 90min;
6) The test process should record the power supply voltage drop of the storage battery in detail, and record the power supply current of the storage battery, the current of each direct-current oil pump, the oil pressure of the outlet of each direct-current oil pump and the running condition of the UPS system.
The emergency starting test conditions of the important oil system after the pressure loss of the security section in the second step are as follows:
1) Ending the test of the load capacity of the diesel generator, wherein the design capacity of the diesel generator meets the requirements;
2) The grading scheme of the emergency starting of the diesel generator with load is determined, and the constant value of the electrical equipment is set according to the scheme;
3) Ending the test of the load capacity of the direct current storage battery pack, wherein the design capacity of the storage battery meets the requirement, and the voltage drops in a normal range during the load running period;
4) The test is preferably carried out before the first whole set of the unit is started;
5) The turbine lubricating oil system, the top shaft oil system, the sealing oil system, the water supply pump small machine lubricating oil system and the induced draft fan small machine lubricating oil system are normally put into operation, and the standby oil pump is put into operation in an interlocking way;
6) The important oil system interlocking test is completed completely and the action is correct;
7) The main machine rotor is in a static state;
8) The small machine rotor is in a static state;
9) The generator is not charged with hydrogen;
10 The self-starting interlocking of the diesel generator is completed and the action is correct.
The emergency starting test method for the important oil system after the power failure of the security section in the second step comprises the following steps: meanwhile, the power supply of the working inlet wire of the security A/B section is disconnected, and the load linkage starting condition of the security section and the running condition of the direct-current oil pump are checked. The test time is not less than 120min.
The emergency starting test specific operation flow of the important oil system after the power failure of the security section in the second step is as follows:
1) Checking that a main machine alternating current lubricating oil pump, a generator sealing oil alternating current oil pump, a main machine jackshaft oil pump, a water supply pump small machine alternating current oil pump and a draught fan small machine alternating current oil pump are all in normal operation, and putting a standby alternating current oil pump and a corresponding direct current oil pump interlocking button;
2) Stopping the main engine jigger, and keeping the top shaft oil pump running; stopping the small jigger and keeping the small top shaft pump running;
3) Checking that hydrogen is not filled in the generator, and sealing an oil system in the generator to normally operate;
4) Meanwhile, the main incoming line power supply of the security A/B section is disconnected, and the security A/B section is confirmed to lose voltage;
5) Checking whether the diesel generator is normally started or not, and checking whether an important oil system of a security section of the diesel generator is recovered to normal operation according to design classification;
6) Checking whether the interlocking start of the direct-current oil pump is normal or not, and checking whether the oil pressure of the outlet of each oil pump is normal or not after the interlocking start.
7) The test process should record the delay time of starting the diesel generator, the pressure loss time of the safety section, the stage starting interval time of each oil pump of the safety section, the oil pressure of each oil pump outlet, the voltage of the safety section and the current of the safety section.
The evaluation standard for success of the load capacity test of the diesel generator in the third step is as follows: the diesel generator is started normally, the running time of the diesel generator with the designed load is not less than 90min, the running parameters are normal, and the load works normally.
The evaluation standard for success of the load capacity test of the direct current storage battery pack in the third step is as follows: each direct-current oil pump is started normally, working oil pressure is normal, UPS is operated normally, and the voltage drop value of the direct-current storage battery pack is not higher than 15% of rated voltage during a test period.
The evaluation standard for success of the emergency starting test of the important oil system after the power failure of the security section in the third step is as follows: after the power is lost in the safety section, the power supply is switched normally, the diesel generator is interlocked to act correctly, the on-load graded starting and running are normal, all the direct-current oil pumps are interlocked to start normally, the running parameters are stable, and the voltage drop value of the storage battery pack is not higher than 15% of rated voltage during running.
The three-stage test item notes involved in the second step are:
1) Before the test, the interlocking test of the important oil system of the host computer should be completed completely, and the action is correct;
2) The main machine and the small machine jigger should be stopped before the test;
3) Hydrogen is not allowed to be filled in the generator before the test;
4) Before the test, whether the control power supply of the important oil pump of the security section is completely powered by the UPS or not needs to be verified;
5) The test process is commanded by a project manager of a debugging unit (as a test general command), a gas turbine professional responsible person (as the test responsible person) integrally coordinates and puts forward test requirements, an electric professional strictly executes operation of the test process according to a test operation ticket, and a thermal professional comprehensively coordinates and is responsible for checking logic and configuration of the test process;
6) The test process should be configured with special personnel to record test data and record waveforms of the test process;
7) The test is carried out under the cooperation of the industry main party, the supervision party, the construction party, the operation party and the like;
the safety measures of the three-stage test project involved in the second step are as follows:
1) The fire-fighting system is provided with enough fire-fighting equipment on site, has enough water source and pressure, is in a standby state at any time, has qualified experience, can be normally put into use, and has the fire-fighting truck in place and is ready for emergency;
2) All personnel participating in the test on site should wear qualified labor protection clothing and correctly wear safety helmets;
3) The testers should fully understand the performance of the tested equipment and the used test equipment and instruments, and strictly forbid the use of equipment which has defects and is possibly endangered the personal safety or the equipment safety;
4) The running state of each oil system is closely monitored in the test to prevent a large amount of oil leakage;
5) When an electrical fire disaster occurs, the power supply is firstly cut off;
6) The operation of the electrical switch should be performed strictly in accordance with the test ticket.
The invention has the beneficial effects that:
1) The method for testing the emergency starting reliability of the important oil system of the steam turbine of the thermal power unit definitely provides contents such as an application range, a test purpose, a test project, test conditions, a test method, test steps, a judgment standard of a test result, test notes, safety measures and the like of the test reliability test.
2) The test is carried out in three projects, different projects are tested in a sub-test operation stage and a whole set of starting stage, the test runs through the whole project period, and the problems can be found early and solved early through the tests in the different stages.
3) The test method starts from a user side (load side), and simulates the working condition that part of plant power is lost or the security section is lost instantaneously when the generator does not start hydrogen replacement before the whole set of the unit is started, so that the reliability of emergency starting of the important oil system of the steam turbine can be tested to the maximum depth.
4) The test method of the invention confirms the responsibility of each party, fills up the gap in the installation and debugging stage of the thermal unit, can discover the problem in advance through the test, and avoids the malignant events of fuel cut, tile burning and the like of the running unit.
Detailed Description
The present invention will be described in further detail with reference to examples.
Taking a certain 350MW thermal power plant as an example, the unit is provided with a 220V diesel generator and a direct-current storage battery pack. The diesel power generation is used as a standby incoming line power supply of the security section, and when the main incoming line power supply of the security section is powered off, the diesel generator is started as an emergency power supply. The users of the direct current storage battery pack comprise the whole plant direct current oil pump and the UPS system.
Firstly, classifying important oil systems of the whole plant steam turbine according to the design, and dividing the important oil systems into three stages.
(I) A main machine lubricating oil alternating-current oil pump/sealing oil alternating-current oil pump (comprising an empty side and a hydrogen side);
(II) a water supply pump small-machine alternating-current oil pump/a draught fan small-machine alternating-current oil pump;
(III) a main engine top shaft oil alternating current oil pump.
Respectively setting delay time for emergency starting of each oil pump after grading, wherein the main engine alternating-current lubricating oil pump in the I-level load is started without delay, and the sealing oil alternating-current oil pump (comprising an empty side and a hydrogen side) is started for 5 seconds; the small-machine alternating-current oil pump of the water feeding pump and the small-machine alternating-current oil pump of the induced draft fan in the II-stage load are started for 10 seconds in a delayed mode; and (3) delaying the start of the main engine top shaft alternating current oil pump for 15s in the III-level load.
Secondly, according to the specific requirements of the second test step, the emergency starting reliability test is carried out according to three items. The three items are respectively a diesel generator on-load capacity test, a direct current storage battery on-load capacity test and an emergency starting test of an important oil system of the steam turbine after power failure of a safety section.
After the site is provided with the test conditions preliminarily, the test principal reports the test total command, and after the total command is approved, the test principal carries out the technical traffic of the test, wherein the technical traffic mainly comprises safety measures, notes, the test conditions of each test, a test method and a test specific operation flow.
Wherein the security measures mainly comprise the following aspects:
1) The fire-fighting system is provided with enough fire-fighting equipment on site, has enough water source and pressure, is in a standby state at any time, has qualified experience, can be normally put into use, and has the fire-fighting truck in place and is ready for emergency;
2) All personnel participating in the test on site should wear qualified labor protection clothing and correctly wear the safety helmet.
3) The test personnel should fully understand the performance of the tested equipment and the test equipment and instruments used. The use of equipment that is defective and may compromise personal or equipment safety is strictly prohibited.
4) The operation condition of each oil system should be closely monitored in the test to prevent a large amount of oil leakage.
5) In the event of an electrical fire, the power supply should first be turned off.
6) The operation of the electrical switch should be performed strictly in accordance with the test ticket.
Wherein the notes mainly include the following aspects:
1) Before the test, the interlocking test of the important oil system of the host computer should be completed completely and the action is correct.
2) The main machine and the small machine jigger should be stopped before the test.
3) No hydrogen charging was allowed in the generator before the test.
4) Before the test, it is necessary to verify whether the control power supply of the important oil pump in the security section is fully supplied by the ups.
5) The test process is conducted by a debugging unit project manager (test general command), a gas turbine professional responsible person (test responsible person) integrally coordinates and puts forward test requirements, an electric professional strictly executes operation of the test process according to a test operation ticket, and a thermal professional comprehensively coordinates and is responsible for checking logic and configuration of the test process.
6) The test process should be configured with a special person to record test data and record waveforms of the test process.
7) The test should be carried out under the cooperation of the industry main party, the supervision party, the construction party, the operation party and the like.
After the technological mating is finished, the test is started according to three test items in sequence.
(1) The test conditions for testing the load capacity of the diesel generator are checked, and specific test items comprise:
1) And after the single diesel generator is debugged, the starting and stopping are normal, and the acceptance is completed.
2) And after the interlocking test of the diesel generator and the safety section is finished.
3) The security section has completed trial and acceptance of all loads.
4) The main machine rotor is in a static state.
5) The rotor of the small machine (comprising the induced draft fan small machine and the water feeding pump small machine) is in a static state.
6) The generator is not filled with hydrogen.
After all the above test conditions are provided, the test is started according to the test method in the second step, and the specific test operation is as follows:
1) All loads of the shutdown security A/B section;
2) The diesel generator is positioned at an automatic position, and the power supply of the main inlet wire of the security A/B section is disconnected.
3) The diesel generator is automatically started, and the security A/B section is powered by the diesel generator;
4) Gradually starting the load of the diesel generator until the designed load is fully added;
5) After the load is started, starting to perform stable operation and timing, wherein the test time is not less than 90min;
the power-off time of the safety section, the voltage after the normal operation of the safety section, the current after the normal operation of the safety section, the outlet current of the diesel generator, the operation parameters of each load of the safety section and the operation conditions (specific parameters such as voltage, frequency, power, oil level and water temperature) of the diesel generator should be recorded in detail in the test process.
And evaluating the test result after the test is finished. The evaluation criteria were: the diesel generator is started normally, the running time of the diesel generator with the designed load is not less than 90min, the running parameters are normal, and the load works normally.
(2) The test conditions for testing the load capacity of the direct-current storage battery pack are checked, and specific test items comprise:
1) The direct current system has finished the monomer debugging and accepted.
2) The UPS system is debugged, can be normally put into operation and is qualified in acceptance.
3) All direct current oil pumps in the whole factory are subjected to trial rotation and qualified in acceptance.
4) The UPS load is put into operation according to the design.
5) The main machine rotor is in a static state.
6) The rotor of the small machine (comprising the induced draft fan small machine and the water feeding pump small machine) is in a static state.
7) The generator is not filled with hydrogen.
After all the above test conditions are provided, the test is started according to the test method in the second step, and the specific test operation is as follows:
1) Switching off a DCS/TCS alternating current power supply and switching off a UPS alternating current power supply;
2) Disconnecting all charging power supplies of the storage battery pack;
3) The system comprises an off-line main engine alternating current lubricating oil pump, an empty side and hydrogen side alternating current sealing oil pump of a generator, an off-line main engine jigger, a main engine top shaft oil pump, a water supply pump small machine alternating current lubricating oil pump and a draught fan small machine alternating current lubricating oil pump.
4) The system comprises a starting main machine direct-current lubricating oil pump, a sealing oil empty side and hydrogen side direct-current oil pump, a water supply pump small machine direct-current lubricating oil pump, a draught fan small machine direct-current lubricating oil pump and other direct-current oil pumps.
5) Starting timing after the on-load starting of the storage battery pack is finished, wherein the test time is not less than 90min;
6) The test process should record the power supply voltage drop of the storage battery in detail, and record the power supply current of the storage battery, the current of each direct-current oil pump, the oil pressure of the outlet of each direct-current oil pump, the running condition of the UPS system and the like.
7) And evaluating the test result after the test is finished. The evaluation criteria were: each direct-current oil pump is started normally, working oil pressure is normal, UPS is operated normally, and the voltage drop value of the direct-current storage battery pack is not higher than 15% of rated voltage during a test period.
(3) The emergency starting test conditions of the important oil system of the steam turbine after the power failure of the security section are checked, and specific checking items comprise:
1) Ending the test of the load capacity of the diesel generator, wherein the design capacity of the diesel generator meets the requirements;
2) The grading scheme of the emergency starting of the diesel generator with load is determined, and the constant value of the electrical equipment is set according to the scheme;
3) Ending the test of the load capacity of the direct current storage battery pack, wherein the design capacity of the storage battery meets the requirement, and the voltage drops in a normal range during the load running period;
4) The test is preferably carried out before the first whole set of the unit is started;
5) The turbine lubricating oil system, the top shaft oil system, the sealing oil system, the water supply pump small machine lubricating oil system and the induced draft fan small machine lubricating oil system are normally put into operation, and the standby oil pump is put into operation in an interlocking way;
6) The important oil system interlocking test is completed completely and the action is correct;
7) The main machine rotor is in a static state;
8) The small machine rotor is in a static state;
9) The generator is not charged with hydrogen;
10 The self-starting interlocking of the diesel generator is completed and the action is correct.
After all the above test conditions are provided, the test is started according to the test method in the second step, and the specific test operation is as follows:
1) Checking that a main machine alternating current lubricating oil pump, a generator sealing oil alternating current oil pump, a main machine jackshaft oil pump, a water supply pump small machine alternating current oil pump and a draught fan small machine alternating current oil pump are all in normal operation, and putting a standby alternating current oil pump and a corresponding direct current oil pump interlocking button;
2) Stopping the main engine jigger, and keeping the top shaft oil pump running; stopping the small jigger and keeping the small top shaft pump running;
3) Checking that hydrogen is not filled in the generator, and sealing an oil system in the generator to normally operate;
4) Disconnecting the main incoming line power supply of the security A/B section, and confirming the instant power failure of the security A/B section;
5) Checking whether the diesel generator is normally started or not, and whether an important oil system of a security section of the diesel generator is normally operated according to design classification or not;
6) Checking whether the interlocking start of the direct-current oil pump is normal or not, and checking whether the oil pressure of the outlet of each oil pump is normal or not after the interlocking start.
7) The test process should record the delay time of starting the diesel generator, the stage starting interval time of each oil pump in the safety section, the oil pressure of each oil pump outlet, the voltage of the safety section, the current of the safety section, etc.
And evaluating the test result after the test is finished. The evaluation criteria were: after the power is lost in the safety section, the power supply is switched normally, the diesel generator is interlocked to act correctly, the on-load graded starting and running are normal, all the direct-current oil pumps are interlocked to start normally, the running parameters are stable, and the voltage drop value of the storage battery pack is not higher than 15% of rated voltage during running.
And finally, arranging test data, writing a test report, feeding test results back to the test total command, and declaring the results of the emergency starting reliability test of the important oil system of the steam turbine by the test total command.
Claims (4)
1. A method for checking emergency starting reliability test of important oil system of steam turbine of thermal power unit is characterized by comprising the following steps of;
step one: before the test, classifying security sections of an important oil system of the steam turbine according to the importance degree according to the design requirement;
step two: emergency starting reliability tests of the classified important oil systems of the steam turbine are carried out according to three test items;
step three: evaluating the result of the test item in the second step;
the security section grading starting sequence in the first step is divided into I, II, III and IV according to the importance degree, and specifically comprises the following steps:
stage I includes: a main machine lubricating oil alternating current oil pump and a generator sealing oil alternating current oil pump;
stage II comprises: a small-machine alternating-current oil pump of the water supply pump and a small-machine alternating-current oil pump of the induced draft fan;
stage III comprises: a main engine top shaft oil alternating current oil pump;
level IV includes other important equipment;
the test in the second step is carried out in three items, namely:
(1) Carrying out a load capacity test on the diesel generator;
(2) Carrying out a load capacity test on the direct-current storage battery pack;
(3) Emergency starting test of important oil system after power failure in security section;
the emergency starting reliability test of the important oil system of the steam turbine in the second step aims at verifying the emergency starting reliability of the important oil system of the steam turbine after the instantaneous power failure of a security section of the thermal power unit; the method comprises the following steps:
a) Checking the automatic starting load capacity of the diesel generator;
b) Checking interlocking starting and load capacity of the direct-current oil pump;
c) After the power failure of the station service is simulated before the whole set of the unit is started, the safety section loses voltage, and the power supply conditions of a diesel generator, a storage battery pack and a UPS are used for preventing the steam turbine from suffering from serious accidents of fuel cut and tile burning;
the test conditions of the load capacity of the diesel generator in the second step comprise:
1) The diesel generator monomer debugging is finished, the starting and stopping are normal, and the acceptance is completed;
2) The interlocking test of the diesel generator and the safety section is finished;
3) The test of all loads of the security section is completed and the security section is qualified;
4) The machine rotor is in a static state;
5) The small machine rotor is in a static state;
6) The generator is not filled with hydrogen;
the method for testing the load capacity of the diesel generator in the second step comprises the following steps: disconnecting the working incoming line power supply of the security section, and gradually starting the load of the diesel generator after the security section power supply is independently powered by the diesel generator until all the designed loads are started and the running time of the diesel generator is not less than 90min under the rated capacity;
the specific operation flow of the diesel generator on-load capacity test in the second step is as follows:
1) All loads of the shutdown security A/B section;
2) The diesel generator is positioned at an automatic position, and a security A/B section main incoming line power supply is disconnected;
3) The diesel generator is automatically started, and the security A/B section is powered by the diesel generator;
4) Gradually starting the load of the diesel generator until the designed load is fully added;
5) After the load is started, starting to perform stable operation and timing, wherein the test time is not less than 90min;
6) The voltage loss time of the safety section, the voltage after the normal operation of the safety section, the current after the normal operation of the safety section, the outlet current of the diesel generator, the operation parameters of each load of the safety section and the operation condition of the diesel generator should be recorded in detail in the test process;
the load test conditions of the direct current storage battery pack in the second step comprise:
1) The direct current system completes monomer debugging and is qualified in acceptance;
2) The UPS system completes debugging, normally operates and is qualified in acceptance;
3) All direct-current oil pumps of the whole factory are subjected to trial rotation and qualified in acceptance;
4) The UPS load is put into operation according to the design;
5) The main machine rotor is in a static state;
6) The small machine rotor is in a static state;
7) The generator is not filled with hydrogen;
the method for testing the load of the direct current storage battery pack in the second step comprises the following steps: disconnecting all charging power supplies of the storage battery pack, disconnecting the UPS alternating current power supply, and independently carrying a UPS system and all direct current oil pumps by the storage battery pack, wherein the test time is not less than 90min;
the specific operation flow of the direct current storage battery pack load test in the second step is as follows:
1) Switching off a DCS/TCS alternating current power supply and switching off a UPS alternating current power supply;
2) Disconnecting all charging power supplies of the storage battery pack;
3) The system comprises an off-line main engine alternating-current lubricating oil pump, an empty side and hydrogen side alternating-current sealing oil pump of a generator, an off-line main engine jigger, a main engine top shaft oil pump, a water supply pump small-machine alternating-current lubricating oil pump and a draught fan small-machine alternating-current lubricating oil pump;
4) The method comprises the steps of starting a main machine direct-current lubrication pump, sealing oil empty side and hydrogen side direct-current oil pumps, a water supply pump small machine direct-current lubrication pump, a draught fan small machine direct-current lubrication pump and other direct-current oil pumps;
5) Starting timing after the on-load starting of the storage battery pack is finished, wherein the test time is not less than 90min;
6) The test process should record the power supply voltage drop condition of the storage battery in detail, record the power supply current of the storage battery, each direct-current oil pump current, each direct-current oil pump outlet oil pressure and UPS system operation condition;
the emergency starting test conditions of the important oil system after the pressure loss of the security section in the second step are as follows:
1) Ending the test of the load capacity of the diesel generator, wherein the design capacity of the diesel generator meets the requirements;
2) The grading scheme of the emergency starting of the diesel generator with load is determined, and the constant value of the electrical equipment is set according to the scheme;
3) Ending the test of the load capacity of the direct current storage battery pack, wherein the design capacity of the storage battery meets the requirement, and the voltage drops in a normal range during the load running period;
4) The test is preferably carried out before the first whole set of the unit is started;
5) The turbine lubricating oil system, the top shaft oil system, the sealing oil system, the water supply pump small machine lubricating oil system and the induced draft fan small machine lubricating oil system are normally put into operation, and the standby oil pump is put into operation in an interlocking way;
6) The important oil system interlocking test is completed completely and the action is correct;
7) The main machine rotor is in a static state;
8) The small machine rotor is in a static state;
9) The generator is not charged with hydrogen;
10 The self-starting interlocking of the diesel generator is completed and the action is correct;
the emergency starting test method for the important oil system after the power failure of the security section in the second step comprises the following steps: meanwhile, the power supply of the working incoming line of the security A/B section is disconnected, and the load linkage starting condition of the security section and the running condition of the direct-current oil pump are checked; the test time is not less than 120min;
the emergency starting test specific operation flow of the important oil system after the power failure of the security section in the second step is as follows:
1) Checking that a main machine alternating current lubricating oil pump, a generator sealing oil alternating current oil pump, a main machine jackshaft oil pump, a water supply pump small machine alternating current oil pump and a draught fan small machine alternating current oil pump are all in normal operation, and putting a standby alternating current oil pump and a corresponding direct current oil pump interlocking button;
2) Stopping the main engine jigger, and keeping the top shaft oil pump running; stopping the small jigger and keeping the small top shaft pump running;
3) Checking that hydrogen is not filled in the generator, and sealing an oil system in the generator to normally operate;
4) Meanwhile, the main incoming line power supply of the security A/B section is disconnected, and the security A/B section is confirmed to lose voltage;
5) Checking whether the diesel generator is normally started or not, and checking whether an important oil system of a security section of the diesel generator is recovered to normal operation according to design classification;
6) Checking whether the interlocking start of the direct-current oil pump is normal or not, and whether the oil pressure of the outlet of each oil pump is normal or not after the direct-current oil pump is started;
7) The test process should record the delay time of starting the diesel generator, the pressure loss time of the safety section, the stage starting interval time of each oil pump of the safety section, the oil pressure of each oil pump outlet, the voltage of the safety section and the current of the safety section;
the evaluation standard for success of the load capacity test of the diesel generator in the third step is as follows: the diesel generator is started normally, the running time of the diesel generator with a designed load is not less than 90min, the running parameters are normal, and the load works normally;
the evaluation standard for success of the load capacity test of the direct current storage battery pack in the third step is as follows: each direct-current oil pump is started normally, working oil pressure is normal, UPS runs normally, and the voltage drop value of the direct-current storage battery pack is not higher than 15% of rated voltage during a test period;
the evaluation standard for success of the emergency starting test of the important oil system after the power failure of the security section in the third step is as follows: after the power is lost in the safety section, the power supply is switched normally, the diesel generator is interlocked to act correctly, the on-load graded starting and running are normal, all the direct-current oil pumps are interlocked to start normally, the running parameters are stable, and the voltage drop value of the storage battery pack is not higher than 15% of rated voltage during running.
2. The method for testing the emergency start reliability test of the important oil system of the steam turbine of the thermal power generating unit according to claim 1, wherein the three-stage test item notes involved in the second step are as follows:
1) Before the test, the interlocking test of the important oil system of the host computer should be completed completely, and the action is correct;
2) The main machine and the small machine jigger should be stopped before the test;
3) Hydrogen is not allowed to be filled in the generator before the test;
4) Before the test, whether the control power supply of the important oil pump of the security section is completely powered by the UPS or not needs to be verified;
5) The test process is commanded by a project manager of a debugging unit, the gas turbine professional responsible person integrally coordinates and puts forward test requirements, the electric profession strictly executes the operation of the test process according to a test operation ticket, and the thermal profession comprehensively coordinates and is responsible for checking the logic and configuration of the test process;
6) The test process should be configured with special personnel to record test data and record waveforms of the test process;
7) The test should be carried out under the cooperation of the industry main party, the supervision party, the construction party and the operation party.
3. The method for testing the emergency starting reliability test of the important oil system of the steam turbine of the thermal power generating unit according to claim 1, wherein the safety measures of the three-stage test project involved in the second step are as follows:
1) The fire-fighting system is provided with enough fire-fighting equipment on site, has enough water source and pressure, is in a standby state at any time, has qualified experience, can be normally put into use, and has the fire-fighting truck in place and is ready for emergency;
2) All personnel participating in the test on site should wear qualified labor protection clothing and correctly wear safety helmets;
3) The testers should fully understand the performance of the tested equipment and the used test equipment and instruments, and strictly forbid the use of equipment which has defects and is possibly endangered the personal safety or the equipment safety;
4) The running state of each oil system is closely monitored in the test to prevent a large amount of oil leakage;
5) When an electrical fire disaster occurs, the power supply is firstly cut off;
6) The operation of the electrical switch should be performed strictly in accordance with the test ticket.
4. The method for testing the emergency starting reliability of the important oil system of the steam turbine of the thermal power generating unit according to claim 1, wherein the application range of the method is specifically as follows: the system is suitable for new construction/extension/reconstruction of large thermal power generating units, the units are provided with diesel generators, and the direct current system is powered by a direct current storage battery pack.
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427896A (en) * | 1972-04-26 | 1984-01-24 | Westinghouse Electric Corp. | System and method for operating a steam turbine with capability for bumplessly changing the system configuration on-line by means of system parameter changes |
| SU1183694A1 (en) * | 1983-11-25 | 1985-10-07 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Method of load regulation of power-and-heat generating steam turbine plant with reduction-cooling device |
| RU2179281C2 (en) * | 2000-01-10 | 2002-02-10 | Специализированная организация по проектированию, монтажу и наладке газоиспользующего и котельного оборудования (ООО "Промэнергогаз-2") | Operational process and design of thermal power plant with complex system of deep recovery of heat and reduced amount of harmful effluents into atmosphere |
| RU2004106190A (en) * | 2004-03-02 | 2005-08-10 | Общество с ограниченной ответственностью "Научно-технический комплекс "Криогенна техника" (RU) | METHOD FOR OPERATION OF A STEAM POWER UNIT AND DEVICE FOR ITS IMPLEMENTATION |
| CN1920721A (en) * | 2006-09-15 | 2007-02-28 | 四川东风电机厂有限公司 | Method for debugging micro computer monitoring protection system of water power station |
| CN101430358A (en) * | 2008-12-10 | 2009-05-13 | 河南国网宝泉抽水蓄能有限公司 | Head-machine first water pump behavior full-group start test method for pump storage plant |
| CN201507381U (en) * | 2009-08-27 | 2010-06-16 | 东莞市新路线机电设备有限公司 | Generator set with emergency start circuit |
| CN104330260A (en) * | 2014-10-17 | 2015-02-04 | 哈尔滨工业大学 | Turbine sequence valve load abrupt fault diagnosis method based on high control valve switch test |
| CN106160202A (en) * | 2015-04-22 | 2016-11-23 | 中广核工程有限公司 | The method of supplying power to of a kind of nuclear power plant Primary hydraulic test and system |
| CN106224018A (en) * | 2016-07-26 | 2016-12-14 | 华电电力科学研究院 | A kind of coal unit steam turbine the whole series Start-up and Adjustment method and system |
| CN106401666A (en) * | 2016-07-26 | 2017-02-15 | 华电电力科学研究院 | Coal-fired unit EH oil and turbine adjusting security system debugging method and system |
| CN109085814A (en) * | 2018-07-23 | 2018-12-25 | 西安热工研究院有限公司 | A kind of thermal power steam turbine group integral device system is lengthened the life appraisal procedure |
| CN110056437A (en) * | 2019-04-24 | 2019-07-26 | 南京泰润电力工程有限公司 | A kind of starting method of diesel-driven generator |
| CN110242553A (en) * | 2019-06-21 | 2019-09-17 | 岭澳核电有限公司 | Nuclear power station oil pumping system test platform and its test method |
| CN111628567A (en) * | 2020-06-26 | 2020-09-04 | 西安热工研究院有限公司 | Diesel generator system giving consideration to accident security and black start and starting method |
| CN112212358A (en) * | 2020-09-03 | 2021-01-12 | 海南热带海洋学院 | Thermal power generating unit coordination control system and coordination control method thereof |
| CN112502793A (en) * | 2020-11-29 | 2021-03-16 | 国网辽宁省电力有限公司电力科学研究院 | Debugging plan debugging method for professional subsystem of power plant steam turbine |
-
2021
- 2021-03-31 CN CN202110354779.7A patent/CN113063599B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427896A (en) * | 1972-04-26 | 1984-01-24 | Westinghouse Electric Corp. | System and method for operating a steam turbine with capability for bumplessly changing the system configuration on-line by means of system parameter changes |
| SU1183694A1 (en) * | 1983-11-25 | 1985-10-07 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Method of load regulation of power-and-heat generating steam turbine plant with reduction-cooling device |
| RU2179281C2 (en) * | 2000-01-10 | 2002-02-10 | Специализированная организация по проектированию, монтажу и наладке газоиспользующего и котельного оборудования (ООО "Промэнергогаз-2") | Operational process and design of thermal power plant with complex system of deep recovery of heat and reduced amount of harmful effluents into atmosphere |
| RU2004106190A (en) * | 2004-03-02 | 2005-08-10 | Общество с ограниченной ответственностью "Научно-технический комплекс "Криогенна техника" (RU) | METHOD FOR OPERATION OF A STEAM POWER UNIT AND DEVICE FOR ITS IMPLEMENTATION |
| CN1920721A (en) * | 2006-09-15 | 2007-02-28 | 四川东风电机厂有限公司 | Method for debugging micro computer monitoring protection system of water power station |
| CN101430358A (en) * | 2008-12-10 | 2009-05-13 | 河南国网宝泉抽水蓄能有限公司 | Head-machine first water pump behavior full-group start test method for pump storage plant |
| CN201507381U (en) * | 2009-08-27 | 2010-06-16 | 东莞市新路线机电设备有限公司 | Generator set with emergency start circuit |
| CN104330260A (en) * | 2014-10-17 | 2015-02-04 | 哈尔滨工业大学 | Turbine sequence valve load abrupt fault diagnosis method based on high control valve switch test |
| CN106160202A (en) * | 2015-04-22 | 2016-11-23 | 中广核工程有限公司 | The method of supplying power to of a kind of nuclear power plant Primary hydraulic test and system |
| CN106224018A (en) * | 2016-07-26 | 2016-12-14 | 华电电力科学研究院 | A kind of coal unit steam turbine the whole series Start-up and Adjustment method and system |
| CN106401666A (en) * | 2016-07-26 | 2017-02-15 | 华电电力科学研究院 | Coal-fired unit EH oil and turbine adjusting security system debugging method and system |
| CN109085814A (en) * | 2018-07-23 | 2018-12-25 | 西安热工研究院有限公司 | A kind of thermal power steam turbine group integral device system is lengthened the life appraisal procedure |
| CN110056437A (en) * | 2019-04-24 | 2019-07-26 | 南京泰润电力工程有限公司 | A kind of starting method of diesel-driven generator |
| CN110242553A (en) * | 2019-06-21 | 2019-09-17 | 岭澳核电有限公司 | Nuclear power station oil pumping system test platform and its test method |
| CN111628567A (en) * | 2020-06-26 | 2020-09-04 | 西安热工研究院有限公司 | Diesel generator system giving consideration to accident security and black start and starting method |
| CN112212358A (en) * | 2020-09-03 | 2021-01-12 | 海南热带海洋学院 | Thermal power generating unit coordination control system and coordination control method thereof |
| CN112502793A (en) * | 2020-11-29 | 2021-03-16 | 国网辽宁省电力有限公司电力科学研究院 | Debugging plan debugging method for professional subsystem of power plant steam turbine |
Non-Patent Citations (2)
| Title |
|---|
| 发电厂紧急保安电源系统的电气试验与维护注意事项;王可;;电源技术应用(03);全文 * |
| 王可 ; .发电厂紧急保安电源系统的电气试验与维护注意事项.电源技术应用.2013,(03),全文. * |
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