CN106051169B - Thermal power plant's generator double-flow se al oil and its start-up and shut-down control method - Google Patents
Thermal power plant's generator double-flow se al oil and its start-up and shut-down control method Download PDFInfo
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- CN106051169B CN106051169B CN201610630039.0A CN201610630039A CN106051169B CN 106051169 B CN106051169 B CN 106051169B CN 201610630039 A CN201610630039 A CN 201610630039A CN 106051169 B CN106051169 B CN 106051169B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000001257 hydrogen Substances 0.000 claims abstract description 514
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 514
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 397
- 238000007789 sealing Methods 0.000 claims abstract description 395
- 239000000446 fuel Substances 0.000 claims abstract description 268
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 117
- 239000000779 smoke Substances 0.000 claims abstract description 107
- 238000000605 extraction Methods 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 28
- 238000004064 recycling Methods 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims description 619
- 239000007788 liquid Substances 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 11
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims 1
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention provides a kind of double-flow se al oil and its start-up and shut-down control method, and the system includes：Empty side seal ring, empty side oil tank, first empty and the second empty top-cross stream sealing oil pump, empty side fuel feeding main pipe electrically operated gate, empty top-cross stream sealing oil pump recycles pressure maintaining valve, direct current sealing oil pump, main oily hydrogen differential pressure control valve, standby oily hydrogen differential pressure control valve, first smoke exhaust fan, second smoke exhaust fan, first empty side cooler, second empty side cooler, first empty side fuel feeding filter screen, second empty side fuel feeding filter screen, main oily hydrogen differential pressure control valve bypass electrically operated gate, empty side direct current sealing oil pump recycles pressure maintaining valve, hydrogen side sealing ring, hydrogen side oil tank, fuel control valve, oil extraction regulating valve, first hydrogen side exchanges sealing oil pump, second hydrogen side exchanges sealing oil pump, hydrogen side exchange sealing oil pump recycling pressure maintaining valve, hydrogen side fuel feeding main pipe electrically operated gate, first hydrogen side cooler, second hydrogen side cooler, first hydrogen side fuel feeding filter screen and the second hydrogen side fuel feeding filter screen and empty hydrogen side balanced valve.
Description
Technical field
The present invention is to seal oil tech on thermal power plant's generator, close especially with regard to a kind of double-current ring of thermal power plant's generator
Sealing oil system and its start-up and shut-down control method.
Background technology
The major function of thermal power plant's generator double-flow se al oil is, to generator sealing bearing bush fuel feeding, and to make oil pressure high
Certain numerical value is pressed in hydrogen in generator, to prevent that hydrogen is leaked out along the gap between rotating shaft and sealing bearing bush in generator, together
When to be also prevented from oil pressure too high and cause a large amount of oil-feeds in generator.In addition, Seal Oil fuel feeding to sealing bearing bush also play lubrication and
The effect of cooling.But existing thermal power plant's generator double-flow se al oil is under full cut-off state, it is impossible to realize double-current ring
The automatic start of sealing oil system；Also double-flow se al oil can not be realized under double-flow se al oil running status
Be automatically stopped；And when double-flow se al oil startup program is run to a certain step, if the step sequence condition is unsatisfactory for, nothing
Method continues the operation of startup program.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of thermal power plant's generator double-flow se al oil and its opening
Stop control method.
One aspect of the present invention provides a kind of thermal power plant's generator double-flow se al oil, and thermal power plant's generator is double
Stream ring sealing oil system includes：Empty side seal oil subsystem and hydrogen-side seal oil subsystem；
The empty side seal oil subsystem includes：Empty side seal ring, empty side oil tank, the first empty top-cross stream sealing oil pump,
Second empty top-cross stream sealing oil pump, empty side fuel feeding main pipe electrically operated gate, empty top-cross stream sealing oil pump recycling pressure maintaining valve, direct current sealing
Oil pump, main oily hydrogen differential pressure control valve, standby oily hydrogen differential pressure control valve, the first smoke exhaust fan, the second smoke exhaust fan, the first empty side are cold
But device, the second empty side cooler, the first empty side fuel feeding filter screen, the second empty side fuel feeding filter screen, main oily hydrogen differential pressure control valve bypass are electric
Dynamic door and empty side direct current sealing oil pump recycling pressure maintaining valve；
Described hydrogen-side seal oil subsystem includes：Hydrogen side sealing ring, hydrogen side oil tank, fuel control valve, oil extraction regulation
Valve, the first hydrogen side exchange sealing oil pump, the second hydrogen side exchange sealing oil pump, hydrogen side exchange sealing oil pump recycling pressure maintaining valve, hydrogen
Side fuel feeding main pipe electrically operated gate, the first hydrogen side cooler, the second hydrogen side cooler, the first hydrogen side fuel feeding filter screen, the second hydrogen side fuel feeding
Filter screen and empty hydrogen side balanced valve；
The empty side oil tank, hydrogen side oil tank pass through the hydrogen side of pipeline running fire motor and empty side respectively；The oil extraction is adjusted
Section valve is arranged on the pipeline between the hydrogen side oil tank and the empty side oil tank；The hydrogen side oil tank is adjusted by fuel feeding
Section valve is connected with empty side oil feed line；
It is connected after first smoke exhaust fan, the second smoke evacuation fan parallel-connection connection with the empty side oil tank by pipeline,
Entrance electrically operated gate is respectively equipped with the entrance of first smoke exhaust fan and the entrance of the second smoke exhaust fan, in the described first smoke evacuation
The outlet of blower fan and the outlet of the second smoke exhaust fan are respectively equipped with outlet non-return door；
Described first empty top-cross stream sealing oil pump, the second empty top-cross stream sealing oil pump and empty top-cross stream sealing oil pump recycling
Pressure maintaining valve is connected in parallel on the pipeline between the empty side oil tank and empty side fuel feeding main pipe electrically operated gate, in the described first empty side
Exchange the two ends of sealing oil pump and the two ends of the second empty top-cross stream sealing oil pump and be respectively equipped with entrance electrically operated gate and outlet electrically operated gate；
The main oily hydrogen differential pressure control valve is arranged on another pipeline between the empty side oil tank and empty side fuel feeding main pipe electrically operated gate
On, the main oily hydrogen differential pressure control valve bypass electrically operated gate is connected in parallel with main oily hydrogen differential pressure control valve, in the main oily hydrogen differential pressure
The two ends of regulating valve are respectively equipped with entrance electrically operated gate and outlet electrically operated gate；
The direct current sealing oil pump is arranged between the empty side oil tank and the electronic gate output terminal of empty side fuel feeding main pipe
On pipeline, the two ends of the direct current sealing oil pump are respectively equipped with entrance electrically operated gate and outlet electrically operated gate, the standby oily hydrogen differential pressure
Regulating valve is located on the pipeline between the direct current sealing oil pump and its outlet electrically operated gate；The empty side direct current sealing oil pump is followed again
Ring pressure maintaining valve is arranged on the pipeline between the empty side oil tank and the direct current sealing oil pump output end；It is straight in the empty side
The pipeline flowed between sealing oil pump recycling pressure maintaining valve and the empty side oil tank recycles hand provided with a direct current sealing oil pump
Dynamic door；
On output end to the pipeline between the empty side seal ring of the empty side fuel feeding main pipe electrically operated gate, it is sequentially provided with
Described first empty side cooler and the first empty side fuel feeding filter screen, the described second empty side cooler and the described first empty side cooler are simultaneously
Connection connection, the described second empty side fuel feeding filter screen is connected in parallel with the first empty side fuel feeding filter screen, in the described first empty side cooler
Two ends, the two ends of the second empty side cooler, the two ends difference of the two ends of the first empty side fuel feeding filter screen and the second empty side fuel feeding filter screen
Provided with entrance electrically operated gate and outlet electrically operated gate；Output after described first empty side fuel feeding filter screen and the second empty side fuel feeding filter screen are in parallel
End is connected by the fuel control valve with the hydrogen side oil tank；
The first hydrogen side exchange sealing oil pump, the second hydrogen side exchange sealing oil pump and hydrogen side exchange sealing oil pump recycling
Pressure maintaining valve is arranged in parallel on the pipeline between the hydrogen side oil tank and the hydrogen side fuel feeding main pipe electrically operated gate；Described first
The two ends of hydrogen side exchange sealing oil pump and the two ends of the second hydrogen side exchange sealing oil pump are respectively equipped with entrance electrically operated gate and outlet electricity
Dynamic door；
On output end to the pipeline between the hydrogen side sealing ring of the hydrogen side fuel feeding main pipe electrically operated gate, it is sequentially provided with
The first hydrogen side cooler, the first hydrogen side fuel feeding filter screen and empty hydrogen side balanced valve, the second hydrogen side cooler and described the
One hydrogen side cooler is connected in parallel, and the second hydrogen side fuel feeding filter screen is connected in parallel with the first hydrogen side fuel feeding filter screen, described
The two ends of one hydrogen side cooler, the two ends of the second hydrogen side cooler, the two ends of the first hydrogen side fuel feeding filter screen and the second hydrogen side fuel feeding
The two ends of filter screen are respectively equipped with entrance electrically operated gate and outlet electrically operated gate.
In one embodiment, the Seal Oil in the hydrogen side oil tank sequentially passes through the first hydrogen side exchange sealing oil pump
And/or the second hydrogen side exchange sealing oil pump, the first hydrogen side cooler and/or the second hydrogen side cooler, the first hydrogen side fuel feeding filter screen
And/or the first hydrogen side fuel feeding filter screen, empty hydrogen side balanced valve enter the hydrogen side sealing ring.
In one embodiment, when the liquid level in the hydrogen side oil tank is more than the first default liquid level, hydrogen side
Sealing oil return in oil tank drains into the entrance and/or the of the described first empty top-cross stream sealing oil pump by the oil extraction regulating valve
The entrance of two empty top-cross stream sealing oil pumps；When the liquid level in the hydrogen side oil tank is less than the second default liquid level,
Seal Oil in the empty side oil feed line is filled into automatically by the fuel control valve.
In one embodiment, the Seal Oil in the empty side oil tank sequentially passes through the described first empty top-cross stream sealing oil pump
And/or the second empty top-cross stream sealing oil pump, the first empty side cooler and/or the second empty side cooler, the first empty side fuel feeding filter screen
And/or second empty side fuel feeding filter screen enter the empty side seal ring.
In one embodiment, when the described first empty top-cross stream sealing oil pump and/or the second empty top-cross stream sealing oil pump are exited
During operation, the Seal Oil in the empty side oil tank sequentially passes through the direct current sealing oil pump, the first empty side cooler and/or the
Two empty side coolers, the first empty side fuel feeding filter screen and/or the second empty side fuel feeding filter screen enter the empty side seal ring.
In one embodiment, thermal power plant's generator double-flow se al oil also includes：Double-flow se al oil
Programed logic button, empty top-cross stream sealing oil pump exchange sealing oil pump interlocking with direct current sealing oil pump block push button, hydrogen side
Stop button and manual confirmation generator hydrogen have discharged button for button, smoke exhaust fan block push button, manual confirmation jiggering.
Another aspect of the present invention provides a kind of start-up and shut-down control method of thermal power plant's generator double-flow se al oil, institute
Stating the start-up and shut-down control method of thermal power plant's generator double-flow se al oil includes：
Judge whether the entrance electrically operated gate, outlet electrically operated gate and the second empty top-cross stream sealing of the first empty top-cross stream sealing oil pump
Entrance electrically operated gate, the outlet electrically operated gate of oil pump have been opened, and empty side fuel feeding main pipe electrically operated gate has been opened, and main oily hydrogen differential pressure control valve
Entrance electrically operated gate and outlet electrically operated gate opened, and main oily hydrogen differential pressure control valve bypass electrically operated gate has been closed, and direct current sealing oil pump
Entrance electrically operated gate and outlet electrically operated gate opened, and the entrance electrically operated gate and outlet electrically operated gate of the first empty side cooler have been opened, and
The entrance electrically operated gate and outlet electrically operated gate of second empty side cooler have been closed, and the entrance electrically operated gate of the first empty side fuel feeding filter screen and are gone out
Mouth electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the second empty side fuel feeding filter screen have been closed, and the exchange of the first hydrogen side is close
Entrance electrically operated gate, the entrance electrically operated gate of outlet electrically operated gate and the second hydrogen side exchange sealing oil pump, the outlet electrically operated gate of oil sealing pump are equal
Open；And hydrogen side fuel feeding main pipe electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first hydrogen side cooler have been opened, and
The entrance electrically operated gate of second hydrogen side cooler and outlet electrically operated gate have been closed, and the entrance electrically operated gate of the first hydrogen side fuel feeding filter screen and are gone out
Mouth electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the second hydrogen side fuel feeding filter screen have been closed, and fuel control valve has been thrown
And oil extraction regulating valve has been thrown automatically automatically,；If it is not, then the entrance for sending the empty top-cross stream sealing oil pump of unlatching described first is electronic
Door, the entrance electrically operated gate of outlet electrically operated gate and the second empty top-cross stream sealing oil pump, the instruction for exporting electrically operated gate, and the unlatching sky
The instruction of side fuel feeding main pipe electrically operated gate, and open the entrance electrically operated gate of the main oily hydrogen differential pressure control valve and export the finger of electrically operated gate
Order, and the instruction of the main oily hydrogen differential pressure control valve bypass electrically operated gate is closed, and open the entrance electricity of the direct current sealing oil pump
Dynamic door and the instruction for exporting electrically operated gate, and open the entrance electrically operated gate of the described first empty side cooler and export the finger of electrically operated gate
Order, and close the entrance electrically operated gate of the second empty side cooler and export the instruction of electrically operated gate, and open the first empty side fuel feeding filter screen
Entrance electrically operated gate and export the instruction of electrically operated gate, and close the entrance electrically operated gate and outlet electrically operated gate of the second empty side fuel feeding filter screen
Instruction, and open the first hydrogen side exchange sealing oil pump entrance electrically operated gate, outlet electrically operated gate and the second hydrogen side exchange Seal Oil
The entrance electrically operated gate of pump, the instruction for exporting electrically operated gate；And the instruction of hydrogen side fuel feeding main pipe electrically operated gate is opened, and open the first hydrogen side
The entrance electrically operated gate of cooler and the instruction for exporting electrically operated gate, and close the entrance electrically operated gate and outlet electricity of the second hydrogen side cooler
The instruction of dynamic door, and open the entrance electrically operated gate of the first hydrogen side fuel feeding filter screen and export the instruction of electrically operated gate, and close the second hydrogen
The entrance electrically operated gate of side fuel feeding filter screen and the instruction for exporting electrically operated gate, and fuel control valve is thrown into automatic instruction, and by oil extraction
Regulating valve throws automatic instruction；
If it is, judging whether the outlet electrically operated gate of the direct current sealing oil pump has closed；If the direct current sealing oil pump
Outlet electrically operated gate do not close, send and close the instruction that direct current sealing oil pump exports electrically operated gate；
If the outlet electrically operated gate of the direct current sealing oil pump has been closed, judge whether the direct current sealing oil pump has been turned on；
If the direct current sealing oil pump is not actuated, the instruction for starting direct current sealing oil pump is sent；
If the direct current sealing oil pump has been turned on, judge the outlet pressure of the direct current sealing oil pump whether between first
In preset range；
If the outlet pressure of the direct current sealing oil pump is in first preset range, the standby oily hydrogen is judged
Whether differential pressure control valve is thrown automatically；If the standby oily hydrogen differential pressure control valve is not thrown automatically, send and adjust standby oily hydrogen differential pressure
Save valve and throw automatic instruction；
If the standby oily hydrogen differential pressure control valve has been thrown automatically, judge whether that the outlet of the direct current sealing oil pump is electronic
Door has been opened, and oily hydrogen differential pressure is in the second preset range；If the outlet electrically operated gate of the direct current sealing oil pump is not opened, or
Oily hydrogen differential pressure sends the instruction for the outlet electrically operated gate for opening direct current sealing oil pump not in the second preset range；
If the outlet electrically operated gate of the direct current sealing oil pump has been opened, and oily hydrogen differential pressure is sentenced in the second preset range
Disconnected whether be delayed reaches preset time, and hydrogen side oil tank liquid level in the 3rd preset range；
If delay reaches the preset time, and the hydrogen side oil tank liquid level between the 3rd preset range
It is interior, judge whether the direct current sealing oil pump is out of service；If the direct current sealing oil pump is not out of service, stopping is sent
Run the instruction of direct current sealing oil pump；
If the direct current sealing oil pump is out of service, judge whether the empty side fuel feeding main pipe electrically operated gate has closed；Such as
Really described empty side fuel feeding main pipe electrically operated gate is not closed, sends the instruction for closing empty side fuel feeding main pipe electrically operated gate；
If the empty side fuel feeding main pipe electrically operated gate has been closed, judge whether the described first empty top-cross stream sealing oil pump has opened
It is dynamic；If the described first empty top-cross stream sealing oil pump is not actuated, the instruction for starting the first empty top-cross stream sealing oil pump is sent；
If the described first empty top-cross stream sealing oil pump has been turned on, judge that empty top-cross stream sealing oil pump outlet main-piping pressure is
It is no in first preset range；
If empty top-cross stream sealing oil pump exports main-piping pressure in first preset range, the main oily hydrogen is judged
Whether differential pressure control valve is thrown automatically；If the main oily hydrogen differential pressure control valve is not thrown automatically, send main oily hydrogen differential pressure control valve
Throw automatically instruction；
If the main oily hydrogen differential pressure control valve has been thrown automatically, judge whether that the empty side fuel feeding main pipe electrically operated gate has been opened,
And oily hydrogen differential pressure is in the 4th preset range；If the empty side fuel feeding main pipe electrically operated gate is not opened, or oily hydrogen differential pressure is not situated between
In the instruction in the 4th preset range, sending the empty side fuel feeding main pipe electrically operated gate of unlatching；
If the empty side fuel feeding main pipe electrically operated gate has been opened, and oily hydrogen differential pressure is in the 4th preset range, judges empty side
Whether exchange sealing oil pump and the interlocking of direct current sealing oil pump have put into；If empty top-cross stream sealing oil pump and direct current sealing oil pump connection
Lock is not put into, sends the instruction for throwing empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump；
If empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump have been put into, judge that the hydrogen side fuel feeding main pipe is electronic
Whether door has closed；If the hydrogen side fuel feeding main pipe electrically operated gate is not closed, the instruction for closing hydrogen side fuel feeding main pipe electrically operated gate is sent；
If the hydrogen side fuel feeding main pipe electrically operated gate has been closed, judge whether the first hydrogen side exchange sealing oil pump has been turned on；Such as
Really described first hydrogen side exchange sealing oil pump is not actuated, sends and starts the instruction that the first hydrogen side exchanges sealing oil pump；
If the first hydrogen side exchange sealing oil pump has been turned on, judge that hydrogen side exchange sealing oil pump outlet main-piping pressure is
It is no in first preset range；
If hydrogen side exchange sealing oil pump exports main-piping pressure in first preset range, the empty hydrogen side is judged
Whether balanced valve has been thrown automatically；If the empty hydrogen side balanced valve is not thrown automatically, send and empty hydrogen side balanced valve is thrown into automatically finger
Order；
If the empty hydrogen side balanced valve has been thrown automatically, judge whether that the hydrogen side fuel feeding main pipe electrically operated gate has been opened, and it is empty
Hydrogen side differential pressure is in the 5th preset range；If the hydrogen side fuel feeding main pipe electrically operated gate is not opened, or empty hydrogen side differential pressure is not situated between
In the instruction in the 5th preset range, sending unlatching hydrogen side fuel feeding main pipe electrically operated gate；
If the hydrogen side fuel feeding main pipe electrically operated gate has been opened, and empty hydrogen side differential pressure is sentenced in the 5th preset range
Whether disconnected hydrogen side exchange sealing oil pump interlocking has put into；If hydrogen side exchange sealing oil pump interlocking is not put into, send throwing hydrogen side and hand over
Flow the instruction of sealing oil pump interlocking；
If hydrogen side exchange sealing oil pump interlocking put into, judge whether first smoke exhaust fan entrance electrically operated gate and
The entrance electrically operated gate of second smoke exhaust fan is turned off；If the entrance electrically operated gate or the second Smoke of first smoke exhaust fan
The entrance electrically operated gate of machine is not turned off, and the entrance for sending the entrance electrically operated gate for closing the first smoke exhaust fan and the second smoke exhaust fan is electronic
The instruction of door；
If the entrance electrically operated gate of first smoke exhaust fan and the entrance electrically operated gate of the second smoke exhaust fan are turned off, judge
Whether first smoke exhaust fan has been turned on；If first smoke exhaust fan is not actuated, sends and start the first smoke exhaust fan
Instruction；
If first smoke exhaust fan has been turned on, judge whether smoke exhaust fan interlocking has put into；If smoke exhaust fan joins
Lock is not put into, sends the instruction for throwing smoke exhaust fan interlocking.
In one embodiment, described start-up and shut-down control method also includes：
Judge whether that the hydrogen side fuel feeding main pipe electrically operated gate has been closed, and hydrogen side exchange sealing oil pump interlocking has dropped out；If
It is no, the instruction for closing hydrogen side fuel feeding main pipe electrically operated gate is sent, and exit the instruction of hydrogen side exchange sealing oil pump interlocking；
If it is, judging whether that the first hydrogen side exchange sealing oil pump and the second hydrogen side exchange sealing oil pump have stopped fortune
OK, and the empty hydrogen side balanced valve has dropped out automatically；If not, sending the first hydrogen side of stopping exchange sealing oil pump and the second hydrogen side
The instruction of sealing oil pump is exchanged, and exits sky hydrogen side balanced valve and is automatically instructed；
If it is, judging whether to have dropped out sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, and have dropped out standby
Oily hydrogen differential pressure control valve is automatic；If not, the instruction for exiting sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump is sent, and
Standby oily hydrogen differential pressure control valve is exited automatically to instruct；
If having dropped out sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, and have dropped out standby oily hydrogen differential pressure regulation
Valve is automatic, judges whether the empty side fuel feeding main pipe electrically operated gate has closed；If the empty side fuel feeding main pipe electrically operated gate is not closed, send
Close the instruction of empty side fuel feeding main pipe electrically operated gate；
If the empty side fuel feeding main pipe electrically operated gate has been closed, judge whether the described first empty top-cross stream sealing oil pump and second
Empty top-cross stream sealing oil pump is out of service, and has dropped out main oily hydrogen differential pressure control valve automatically, and has dropped out fuel control valve certainly
Dynamic and oil extraction regulating valve is automatic, and has dropped out smoke exhaust fan interlocking；If not, sending the out of service first empty top-cross stream Seal Oil
The instruction of pump and the second empty top-cross stream sealing oil pump, and exit oily hydrogen differential pressure control valve and automatically instruct, and exit fuel control
Valve is automatic and oil extraction regulating valve is automatically instructed, and exits the instruction of smoke exhaust fan interlocking；
If it is, judging whether that first smoke exhaust fan and the second smoke exhaust fan are out of service；If described first
Smoke exhaust fan or the second smoke exhaust fan be not out of service, sends the finger of the first smoke exhaust fan out of service and the second smoke exhaust fan
Order.
In one embodiment, described start-up and shut-down control method also includes：
Judge whether that steam turbine lubricating oil main-piping pressure is more than the first preset pressure value, and the liquid level of empty side oil tank is higher than in advance
If liquid level；If steam turbine lubricating oil main-piping pressure is more than the first preset pressure value, and the liquid level of empty side oil tank is higher than default liquid
Position, then judge whether the entrance electrically operated gate, outlet electrically operated gate and the second empty top-cross stream Seal Oil of the first empty top-cross stream sealing oil pump
Entrance electrically operated gate, the outlet electrically operated gate of pump have been opened, and empty side fuel feeding main pipe electrically operated gate has been opened, and main oily hydrogen differential pressure control valve
Entrance electrically operated gate and outlet electrically operated gate have been opened, and main oily hydrogen differential pressure control valve bypass electrically operated gate has been closed, and direct current sealing oil pump
Entrance electrically operated gate and outlet electrically operated gate have been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first empty side cooler have been opened, and the
The entrance electrically operated gate and outlet electrically operated gate of two empty side coolers have been closed, and entrance electrically operated gate and the outlet of the first empty side fuel feeding filter screen
Electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the second empty side fuel feeding filter screen have been closed, and the exchange sealing of the first hydrogen side
Entrance electrically operated gate, outlet electrically operated gate and the second hydrogen side of oil pump have exchanged the entrance electrically operated gate of sealing oil pump, outlet electrically operated gate
Open；And hydrogen side fuel feeding main pipe electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first hydrogen side cooler have been opened, and the
The entrance electrically operated gate and outlet electrically operated gate of two hydrogen side coolers have been closed, and entrance electrically operated gate and the outlet of the first hydrogen side fuel feeding filter screen
Electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the second hydrogen side fuel feeding filter screen have been closed, and fuel control valve has been thrown certainly
Move, and oil extraction regulating valve has been thrown automatically.
In one embodiment, described start-up and shut-down control method also includes：
Judge whether in generator that air pressure is less than the second preset pressure value, and jiggering has stopped, and hydrogen has been in generator
Discharge；If air pressure is less than the second preset pressure value in generator, and jiggering has stopped, and hydrogen has been discharged in generator, is sentenced
Disconnected whether hydrogen side fuel feeding main pipe electrically operated gate has been closed, and hydrogen side exchange sealing oil pump interlocking has dropped out.
In one embodiment, first preset range, the second preset range, the 3rd preset range, the 4th preset range
And the 5th preset range be respectively：0.85Mpa~1Mpa, 46kPa~66kPa, 400mm~600mm, 74kPa~94kPa,
400Pa~600Pa.
In one embodiment, it is 400mm that the fuel control valve, which throws automatic setting value, and the oil extraction regulating valve is thrown automatic
Setting value be 600mm, it is 56kPa that the standby oily hydrogen differential pressure control valve, which throws automatic setting value, and the main oily hydrogen differential pressure is adjusted
It is 84kPa to save valve and throw automatic setting value, and it is 500Pa that the empty hydrogen side balanced valve, which throws automatic setting value,.
In one embodiment, first preset pressure value is 0.15Mpa, and the default liquid level is 150mm.
In one embodiment, second preset pressure value is 20kPa.
In one embodiment, the preset time is 5min.
The beneficial effects of the present invention are：Thermal power plant's double-flow se al oil and its start-up and shut-down control side that the present invention is provided
Method can under thermal power plant's generator double-flow se al oil full cut-off state, realize generator double-flow se al oil from
It is dynamic to start；Under thermal power plant's generator double-flow se al oil running status, generator double-flow se al oil is realized
It is automatically stopped；And take into account artificial judgement, it is possible to achieve thermal power plant's generator double-flow se al oil programed logic
Leapfrog is run, and when the condition of a certain step of programed logic is unrealized causes step sequence not carry out, can artificially judge bar
Whether part is negligible and operates leapfrog to act, and continues the operation of programed logic until finishing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of thermal power plant of embodiment of the present invention generator double-flow se al oil；
Fig. 2A, Fig. 2 B and Fig. 2 C are the start-up and shut-down control side of thermal power plant of embodiment of the present invention generator double-flow se al oil
Method flow chart；
Fig. 3 is the start-up and shut-down control method flow of another embodiment of the present invention thermal power plant generator double-flow se al oil
Figure.
Drawing reference numeral：
The 1 first empty empty top-cross stream sealing oil pump outlet electrically operated gate of top-cross stream sealing oil pump entrance electrically operated gate 2 first
The 3 second empty empty top-cross stream sealing oil pump outlet electrically operated gates of top-cross stream sealing oil pump entrance electrically operated gate 4 second
The empty top-cross stream sealing oil pump recycling pressure maintaining valve of 5 empty side fuel feeding main pipe electrically operated gate 6
The 7 main oily main oily hydrogen differential pressure control valves of hydrogen differential pressure regulation valve inlet electrically operated gate 8
The 9 main oily main oily hydrogen differential pressure control valve bypass electrically operated gates of hydrogen differential pressure regulation valve outlet electrically operated gate 10
The standby oily hydrogen differential pressure control valve of 11 direct current sealing oil pump entrance electrically operated gate 12
The empty side direct current sealing oil pump recycling pressure maintaining valve of 13 direct current sealing oil pumps outlet electrically operated gate 14
The empty side cooler entrance electrically operated gate of 15 direct current sealing oil pumps recycling manually operated door 16 first
The empty side cooler entrance electrically operated gate of 17 first empty side cooler outlet electrically operated gate 18 second
The empty side fuel feeding filter screen entrance electrically operated gate of 19 second empty side cooler outlet electrically operated gate 20 first
The empty side fuel feeding filter screen entrance electrically operated gate of 21 first empty side fuel feeding filter screen outlet electrically operated gate 22 second
The 23 second empty side fuel feeding filter screen outlet hydrogen side fuel reserve tank fuel control valves of electrically operated gate 24
The hydrogen side of 25 hydrogen side fuel reserve tank oil extraction regulating valve 26 first exchanges sealing oil pump entrance electrically operated gate
The 27 first hydrogen sides exchange sealing oil pump outlet hydrogen side of electrically operated gate 28 second exchange sealing oil pump entrance electrically operated gate
The 29 second hydrogen sides exchange sealing oil pump outlet hydrogen side of electrically operated gate 30 exchange sealing oil pump recycling pressure maintaining valve
The hydrogen side cooler entrance electrically operated gate of 31 hydrogen side fuel feeding main pipe electrically operated gate 32 first
The hydrogen side cooler entrance electrically operated gate of 33 first hydrogen side cooler outlet electrically operated gate 34 second
The hydrogen side fuel feeding filter screen entrance electrically operated gate of 35 second hydrogen side cooler outlet electrically operated gate 36 first
37 first hydrogen side fuel feeding filter screens export the hydrogen side fuel feeding filter screen entrance electrically operated gate of electrically operated gate 38 second
The empty hydrogen side balanced valve of 39 second hydrogen side fuel feeding filter screens outlet electrically operated gate 40
The smoke evacuation fans entrance electrically operated gate of 41 first smoke evacuation fans entrance electrically operated gates 42 second
The smoke evacuation fan outlet non-return flap of 43 first smoke evacuation fan outlet non-return flaps 44 second
The 45 first empty top-cross stream sealing oil pumps of empty top-cross stream sealing oil pump 46 second
The empty side cooler of 47 direct current sealing oil pump 48 first
The empty side fuel feeding filter screen of 49 second empty side cooler 50 first
The hydrogen side exchange sealing oil pump of 51 second empty side fuel feeding filter screen 52 first
53 second hydrogen sides exchange the hydrogen side cooler of sealing oil pump 54 first
The hydrogen side fuel feeding filter screen of 55 second hydrogen side cooler 56 first
The smoke exhaust fan of 57 second hydrogen side fuel feeding filter screen 58 first
The hydrogen side oil return pipe blowdown manually operated door of 59 second smoke exhaust fan 60
The 61 empty hydrogen side sealing rings of side seal ring 62
The hydrogen side oil tank of 63 empty side oil tank 64
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiments of the invention provide a kind of thermal power plant's generator double-flow se al oil, double-current ring refers to generator two
End is respectively provided with two sealing rings：Hydrogen side sealing ring and empty side seal ring, and corresponding setting two-way Seal Oil, empty side seal
Oil is used to isolate air, and hydrogen-side seal oil is used to seal hydrogen, and empty side seal oil adjusts Seal Oil by oily hydrogen differential pressure control valve
Pressure, hydrogen-side seal oil adjusts pressure by empty hydrogen side balanced valve, makes two-way sealing oil pressure suitable.
As shown in figure 1, thermal power plant's generator double-flow se al oil of the embodiment of the present invention includes：Empty side seal foxy old hand
System and hydrogen-side seal oil subsystem.
Wherein, empty side seal oil subsystem includes：The empty top-cross stream sealing of empty side seal ring 61, empty side oil tank 63, first
The empty top-cross stream sealing oil pump 46 of oil pump 45, second, empty side fuel feeding main pipe electrically operated gate 5, empty top-cross stream sealing oil pump recycling voltage stabilizing
Valve 6, direct current sealing oil pump 47, main oily hydrogen differential pressure control valve 8, standby oily hydrogen differential pressure control valve 12, the first smoke exhaust fan 58, second
The empty side fuel feeding of the empty side fuel feeding filter screen 50, second of the empty side cooler 49, first of the empty side cooler 48, second of smoke exhaust fan 59, first
Filter screen 51, main oily hydrogen differential pressure control valve bypass electrically operated gate 10 and empty side direct current sealing oil pump recycling pressure maintaining valve 14.
Hydrogen-side seal oil subsystem includes：Hydrogen side sealing ring 62, hydrogen side oil tank 64, fuel control valve 24, oil extraction regulation
Valve 25, the first hydrogen side exchange sealing oil pump 52, the second hydrogen side exchange sealing oil pump 53, hydrogen side exchange sealing oil pump recycling voltage stabilizing
Valve 30, hydrogen side fuel feeding main pipe electrically operated gate 31, the first hydrogen side cooler 54, the second hydrogen side cooler 55, the first hydrogen side fuel feeding filter screen
56th, the second hydrogen side fuel feeding filter screen 57 and empty hydrogen side balanced valve 40.
Empty side oil tank 63, hydrogen side oil tank 64 pass through the hydrogen side of pipeline running fire motor and empty side respectively.Oil extraction regulating valve
25 are arranged on the pipeline between hydrogen side oil tank 64 and empty side oil tank 63, and hydrogen side oil tank 64 also passes through fuel control valve 24
It is connected with empty side oil feed line.
First smoke exhaust fan 58, the second smoke exhaust fan 59 are connected after being connected in parallel with empty side oil tank 63 by pipeline,
The entrance of first smoke exhaust fan 58 is provided with entrance electrically operated gate 41, and entrance electrically operated gate 42 is provided with the entrance of the second smoke exhaust fan 59,
And outlet non-return door 43 is respectively equipped with the outlet of the first smoke exhaust fan 58 and the outlet of the second smoke exhaust fan 58 and is exported inverse
Only door 44.
The first empty empty top-cross stream sealing oil pump 46 of top-cross stream sealing oil pump 45, second and empty top-cross stream sealing oil pump recycling
Pressure maintaining valve 6 is connected in parallel on the pipeline between sky side oil tank 63 and empty side fuel feeding main pipe electrically operated gate 5, in the first empty top-cross stream
The two ends of sealing oil pump 45 are respectively equipped with entrance electrically operated gate 1 and outlet electrically operated gate 2, the two of the second empty top-cross stream sealing oil pump 46
End is respectively equipped with entrance electrically operated gate 3 and outlet electrically operated gate 4.Main oily hydrogen differential pressure control valve 8 is arranged on sky side oil tank 63 and empty side
On another pipeline between fuel feeding main pipe electrically operated gate 5.Main oily hydrogen differential pressure control valve bypass electrically operated gate 10 is adjusted with main oily hydrogen differential pressure
Section valve 8 is connected in parallel, and is respectively equipped with the two ends of main oily hydrogen differential pressure control valve 8 entrance electrically operated gate 7 and outlet electrically operated gate 9.
Direct current sealing oil pump 47 is arranged on the pipeline between sky side oil tank 63 and the output end of empty side fuel feeding main pipe electrically operated gate 5
On, the two ends of direct current sealing oil pump 47 are respectively equipped with entrance electrically operated gate 11 and outlet electrically operated gate 13, standby oily hydrogen differential pressure control valve
12 are located on the pipeline between direct current sealing oil pump 47 and its outlet electrically operated gate 13.Empty side direct current sealing oil pump recycles pressure maintaining valve
14 are arranged on the pipeline between sky side oil tank 63 and the output end of direct current sealing oil pump 47, are followed again in empty side direct current sealing oil pump
Pipeline between ring pressure maintaining valve 14 and empty side oil tank 63 recycles manually operated door 15 provided with a direct current sealing oil pump, for isolating
Empty side direct current sealing oil pump recycling pressure maintaining valve 14 and empty side oil tank 63.
On output end to the pipeline between empty side seal ring 61 of empty side fuel feeding main pipe electrically operated gate 5, first is sequentially provided with
The empty empty side fuel feeding filter screen 50 of side cooler 48 and first, the second empty side cooler 49 is connected in parallel with the first empty side cooler 48,
Second empty side fuel feeding filter screen 51 is connected in parallel with the first empty side fuel feeding filter screen 50, be provided with the two ends of the first sky side cooler 48 into
Mouth electrically operated gate 16 and outlet electrically operated gate 17, at the two ends of the second empty side cooler 49 provided with entrance electrically operated gate 18 and outlet electrically operated gate
19, at the two ends of the first empty side fuel feeding filter screen 50 provided with entrance electrically operated gate 20 and outlet electrically operated gate 21, and in the second empty side confession
The two ends of oil screen 51 are respectively equipped with entrance electrically operated gate 22 and outlet electrically operated gate 23.First empty side fuel feeding filter screen 50 and the second empty side
Output end after the parallel connection of fuel feeding filter screen 51 is connected by fuel control valve 24 with hydrogen side oil tank 64.
First hydrogen side exchange sealing oil pump 52, the second hydrogen side exchange sealing oil pump 53 and hydrogen side exchange sealing oil pump recycling
Pressure maintaining valve 30 is arranged in parallel on the pipeline between hydrogen side oil tank 64 and hydrogen side fuel feeding main pipe electrically operated gate 31.Handed in the first hydrogen side
The two ends of stream sealing oil pump 52 are respectively equipped with entrance electrically operated gate 26 and outlet electrically operated gate 27, and sealing oil pump 53 is exchanged in the second hydrogen side
Two ends be respectively equipped with entrance electrically operated gate 28 and outlet electrically operated gate 29.
On output end to the pipeline between hydrogen side sealing ring 62 of hydrogen side fuel feeding main pipe electrically operated gate 31, first is sequentially provided with
Hydrogen side cooler 54, the first hydrogen side fuel feeding filter screen 56 and empty hydrogen side balanced valve 40, the second hydrogen side cooler 55 and the first hydrogen side are cold
But device 54 is connected in parallel, and the second hydrogen side fuel feeding filter screen 57 is connected in parallel with the first hydrogen side fuel feeding filter screen 56.In the cooling of the first hydrogen side
The two ends of device 54 are respectively equipped with entrance electrically operated gate 32 and outlet electrically operated gate 33, are respectively equipped with the two ends of the second hydrogen side cooler 55
Entrance electrically operated gate 34 and outlet electrically operated gate 35, in the two end entrance electrically operated gates 36 and outlet electrically operated gate of the first hydrogen side fuel feeding filter screen 56
37, and the second hydrogen side fuel feeding filter screen 57 two ends be respectively equipped with entrance electrically operated gate 38 and outlet electrically operated gate 39.
As shown in figure 1, it is necessary that other are additionally provided with thermal power plant of embodiment of the present invention generator double-flow se al oil
Pipeline, valve and related thermal technology's measuring point etc..
Using thermal power plant's generator double-flow se al oil provided in an embodiment of the present invention to generator sealing bearing bush fuel feeding,
And make oil pressure higher than hydrogen pressure certain numerical value in generator, can prevent that hydrogen is along between rotating shaft and sealing bearing bush in generator
Gap is leaked out, while it is too high and cause a large amount of oil-feeds in generator to be also prevented from oil pressure.In addition, Seal Oil fuel feeding is to sealing bearing bush
Serve the effect of lubrication and cooling.The effect of empty side oil tank 63 is the empty side oil return for reclaiming Seal Oil, and Seal Oil is existed
Dilatation separates out hydrogen in oil tank, is extracted out by smoke exhaust fan 58 and 59.In addition, empty side oil tank 63 is also sky top-cross stream Seal Oil
The store oil source of pump 45 and 46.The effect of hydrogen side oil tank 64 is the hydrogen side oil return for reclaiming Seal Oil, and Seal Oil is exchanged as hydrogen side
The oil sources of pump 52 and 53.When oil level in hydrogen side oil tank 64 exceedes certain value, sky side is drained into by oil extraction regulating valve 25 automatically
Exchange the entrance of sealing oil pump 45 and 46；When oil level in hydrogen side oil tank 64 is less than certain value, by empty side oil feed line by supplying
Oily regulating valve 24 fills into Seal Oil automatically.The oil pressure that functions as of empty top-cross stream sealing oil pump 45 and 46 is originated, with main oily hydrogen
Differential pressure control valve 8, which coordinates, to be removed to seal up in generator hydrogen there is provided the Seal Oil of convenient pressure and prevents outside atmosphere from scurrying into hair
In motor.Direct current sealing oil pump 47 coordinates as the supplier of the other oil sources of empty side all the way with standby oily hydrogen differential pressure control valve 12,
There is provided the Seal Oil of convenient pressure when empty top-cross stream sealing oil pump 45 and 46 does not work.The embodiment of the present invention is carried
Empty side fuel feeding filter screen 50 and 51 in the double-flow se al oil of confession, and the effect of hydrogen side fuel feeding filter screen 56 and 57 is filtering
Go out well cuts, prevent impurity from causing abrasion into sealing bearing bush.Empty side cooler 48 and 49, and hydrogen side cooler 54 and 55
Effect is reduction Seal Oil oil temperature supplying, so as to provide the Seal Oil of suitable temperature.
In one embodiment, the Seal Oil in hydrogen side oil tank 64 sequentially pass through the first hydrogen side exchange sealing oil pump 52 (or
The hydrogen side of person second exchange sealing oil pump 53), the first hydrogen side cooler 54 (or second hydrogen side cooler 55), the first hydrogen side fuel feeding
Filter screen 56 (or first hydrogen side fuel feeding filter screen 57), empty hydrogen side balanced valve 40 enter hydrogen side sealing ring 62.Wherein, the first hydrogen side is handed over
Stream sealing oil pump 52 exchanges sealing oil pump 53 with the second hydrogen side and is simultaneously operable, the first hydrogen side cooler 54 and the cooling of the second hydrogen side
Device 55 can also work simultaneously, and the first hydrogen side fuel feeding filter screen 56 and the first hydrogen side fuel feeding filter screen 57 can also work simultaneously.
When the liquid level in hydrogen side oil tank 64 exceedes certain value (value can be pre-set), hydrogen side oil tank 64
In sealing oil return the entrance and/or the second empty top-cross stream of the first empty top-cross stream sealing oil pump 45 are drained into by oil extraction regulating valve 25
The entrance of sealing oil pump 46, that is, drain on the pipeline that sky side oil tank 63 is connected with empty top-cross stream sealing oil pump, into empty top-cross
Flow sealing oil pump.When the liquid level in hydrogen side oil tank 64 is less than certain value (value can also be pre-set), empty side is supplied
Seal Oil in oil pipe line fills into hydrogen side oil tank 64 automatically by fuel control valve 24.
In one embodiment, the Seal Oil in empty side oil tank 63 sequentially pass through the first empty top-cross stream sealing oil pump 45 (or
The empty top-cross stream sealing oil pump 46 of person second), the first empty side cooler 48 (or second empty side cooler 49), the first empty side fuel feeding
Filter screen 50 (or second empty side fuel feeding filter screen 51) enters empty side seal ring 61.Wherein, the first empty He of top-cross stream sealing oil pump 45
Second empty top-cross stream sealing oil pump 46 can work simultaneously, and the first empty side cooler 48 and the second empty side cooler 49 can also be same
When work, and the first empty empty side fuel feeding filter screen 51 of side fuel feeding filter screen 50 and second can also work simultaneously.
When the first empty top-cross stream sealing oil pump 46 of empty top-cross stream sealing oil pump 45 or second is out of service, or the two all because
When failure is out of service, the Seal Oil in empty side oil tank 63 sequentially passes through the empty side cooler 48 of direct current sealing oil pump 47, first
(or second empty side cooler 49), the first empty side fuel feeding filter screen 50 (or second empty side fuel feeding filter screen 51) enter empty side seal
Ring 61.
In one embodiment, above-mentioned thermal power plant's generator double-flow se al oil also includes：Double-current ring Seal Oil system
System program control logic button A1, empty top-cross stream sealing oil pump exchange Seal Oil with direct current sealing oil pump block push button A2, hydrogen side
Pump block push button A3, smoke exhaust fan block push button A4, manual confirmation jiggering stop button A5 and manual confirmation generator hydrogen
Button A6 is discharged.
Using above-mentioned block push button, equipment interlocking can be automatically engaged.After input is interlocked, if wherein a certain equipment is jumped
During lock, another equipment can interlocked startup rapidly, maintain system operation normal.These interlock devices include：Direct current Seal Oil
The empty top-cross stream sealing oil pump 46 of the empty top-cross stream sealing oil pump 45 and second of pump 47, first is interlocked, the first hydrogen side exchange sealing oil pump
And second hydrogen side exchange sealing oil pump interlocking, the first smoke exhaust fan 58 and the second smoke exhaust fan 59 are interlocked.
The embodiment of the present invention additionally provides a kind of start-up and shut-down control method of thermal power plant's generator double-flow se al oil, should
The executive agent of start-up and shut-down control method can be computer system etc..As shown in Fig. 2A, Fig. 2 B and Fig. 2 C, the start-up and shut-down control method
Including：
Step S101, judge whether 1. the entrance electrically operated gate 1 of the first empty top-cross stream sealing oil pump 45, outlet electrically operated gate 2 and
2. and empty side fuel feeding main pipe electrically operated gate 5 entrance electrically operated gate 3, the outlet electrically operated gate 4 of second empty top-cross stream sealing oil pump 46 have been opened,
It has been opened that, 3. and the entrance electrically operated gate 7 and outlet electrically operated gate 9 of main oily hydrogen differential pressure control valve 8 has been opened, 4. and main oily hydrogen differential pressure control valve
Bypass electronic 10 to have closed, 5. and the entrance electrically operated gate 11 and outlet electrically operated gate 13 of direct current sealing oil pump 47 has been opened, 6. and first
The entrance electrically operated gate 16 of empty side cooler 48 and outlet electrically operated gate 17 have been opened, 7. and the second empty side cooler 49 entrance electrically operated gates
18 and outlet electrically operated gate 19 closed, 8. and the entrance electrically operated gate 20 and outlet electrically operated gate 21 of the first empty side fuel feeding filter screen 50 has been opened,
9. and the entrance electrically operated gate 22 and outlet electrically operated gate 23 of the second empty side fuel feeding filter screen 51 has been closed, 10. and the first hydrogen side exchange Seal Oil
The entrance electrically operated gate 26 of pump 52, the entrance electrically operated gate 28 of the outlet hydrogen side of electrically operated gate 27 and second exchange sealing oil pump 53, outlet electricity
Dynamic door 29 has been opened；And hydrogen side fuel feeding main pipe electrically operated gate 31 has been opened,And first hydrogen side cooler 54 entrance electrically operated gate 32
And outlet electrically operated gate 33 has been opened,And second hydrogen side cooler 55 entrance electrically operated gate 34 and outlet electrically operated gate 35 closed,And
The entrance electrically operated gate 36 and outlet electrically operated gate 37 of first hydrogen side fuel feeding filter screen 56 have been opened,And second hydrogen side fuel feeding filter screen 57 enter
Mouth electrically operated gate 38 and outlet electrically operated gate 39 have been closed,And fuel control valve 24 has been thrown automatically,And oil extraction regulating valve 25 has been thrown certainly
It is dynamic.If having a condition to be unsatisfactory in above-mentioned 17 conditions, step S102 is carried out, the empty top-cross stream sealing of unlatching first is sent
The entrance electrically operated gate 3 of the empty top-cross stream sealing oil pump 46 of entrance electrically operated gate 1, outlet electrically operated gate 2 and second of oil pump 45, outlet are electronic
The instruction of door 4, and the instruction of empty side fuel feeding main pipe electrically operated gate 5 is opened, and open the entrance electrically operated gate of main oily hydrogen differential pressure control valve 8
7 and the instruction of electrically operated gate 9 is exported, and close the instruction that main oily hydrogen differential pressure control valve bypasses electrically operated gate 10, and open direct current sealing
The entrance electrically operated gate 11 of oil pump 47 and the instruction for exporting electrically operated gate 13, and open entrance electrically operated gate 16 and the outlet of the first empty side 48
The instruction of electrically operated gate 17, and close the entrance electrically operated gate 18 of the second empty side cooler 49 and export the instruction of electrically operated gate 19, and open
Open the entrance electrically operated gate 20 of the first empty side fuel feeding filter screen 50 and export the instruction of electrically operated gate 21, and close the second empty side fuel feeding filter screen
51 entrance electrically operated gate 22 and the instruction for exporting electrically operated gate 23, and open the entrance electrically operated gate that the first hydrogen side exchanges sealing oil pump 52
26th, the entrance electrically operated gate 28 of the outlet hydrogen side of electrically operated gate 27 and second exchange sealing oil pump 53, the instruction of outlet electrically operated gate 29；And open
The instruction of hydrogen side fuel feeding main pipe electrically operated gate 31 is opened, and opens the entrance electrically operated gate 32 and outlet electrically operated gate of the first hydrogen side cooler 54
33 instruction, and close the entrance electrically operated gate 34 of the second hydrogen side cooler 55 and export the instruction of electrically operated gate 35, and open first
The entrance electrically operated gate 36 of hydrogen side fuel feeding filter screen 56 and the instruction for exporting electrically operated gate 37, and close entering for the second hydrogen side fuel feeding filter screen 57
Mouth electronic 38 and the instruction of outlet electronic 39, and fuel control valve 24 is automatically instructed, and oil extraction regulating valve 25 is automatic
Instruction.If above-mentioned 17 conditions are met simultaneously, step S103 is carried out.
In one embodiment, fuel control valve 24 throws automatic setting value for 400mm, and oil extraction regulating valve 25, which is thrown, automatically to be set
Definite value is 600mm.
Step S103, judge whether the outlet electrically operated gate 13 of direct current sealing oil pump 47 has closed.If direct current sealing oil pump 47
Outlet electrically operated gate 13 do not close, send and close the instruction (step S104) that direct current sealing oil pump exports electrically operated gate.If direct current is close
The outlet electrically operated gate 13 of oil sealing pump 47 has been closed, then carries out step S105.
Step S105, judge whether direct current sealing oil pump 47 has been turned on.If direct current sealing oil pump 47 is not actuated, sends and open
The instruction (step S106) of dynamic direct current sealing oil pump.If direct current sealing oil pump 47 has been turned on, step S107 is carried out.
Step S107, judge the outlet pressure of direct current sealing oil pump 47 whether in the first preset range.If direct current
The outlet pressure of sealing oil pump 47 carries out step S108 in the first preset range.
In one embodiment, the first above-mentioned preset range is 0.85MPa~1Mpa.
Step S108, judge whether standby oily hydrogen differential pressure control valve 12 is thrown automatically.If standby oily hydrogen differential pressure control valve 12
Do not throw automatically, send and standby oily hydrogen differential pressure control valve is thrown into automatically instruction (step S109).If standby oily hydrogen differential pressure regulation
Valve 12 has been thrown automatically, carries out step S110.
In one embodiment, the automatic setting value of throwing of standby oily hydrogen differential pressure control valve 12 is 56kPa.
Step S110, judge whether that the outlet electrically operated gate 13 of direct current sealing oil pump 47 has been opened, and oily hydrogen differential pressure is between second
In preset range.If the outlet electrically operated gate of direct current sealing oil pump 47 is not opened, or oily hydrogen differential pressure is not between the second preset range
It is interior, send and open the instruction (step S111) that direct current sealing oil pump exports electrically operated gate.If the outlet electricity of direct current sealing oil pump 47
Dynamic door 13 has been opened and oily hydrogen differential pressure is in the second preset range, carries out step S112.
In one embodiment, the second above-mentioned preset range is 46kPa~66kPa.
Step S112, judge whether that delay reaches preset time, and hydrogen side oil tank 64 liquid level between the 3rd default model
In enclosing.If being delayed the liquid level for reaching above-mentioned preset time and hydrogen side oil tank 64 in the 3rd preset range, step is carried out
S113。
In one embodiment, the preset time of delay is 5min, and the 3rd preset range is 400~600mm.
Step S113, judge whether direct current sealing oil pump 47 is out of service.If direct current sealing oil pump 47 does not stop fortune
OK, the instruction (step S114) of direct current sealing oil pump out of service is sent.If direct current sealing oil pump 47 is out of service, enter
Row step S115.
Step S115, judge whether empty side fuel feeding main pipe electrically operated gate 5 has closed.If empty side fuel feeding main pipe electrically operated gate 5 is not closed,
Send the instruction (step S116) for closing empty side fuel feeding main pipe electrically operated gate.If empty side fuel feeding main pipe electrically operated gate 5 has been closed, carry out
Step S117.
Step S117, judge whether the first empty top-cross stream sealing oil pump 45 has been turned on.If the first empty top-cross stream Seal Oil
Pump 45 is not actuated, sends the instruction (step S118) for starting the first empty top-cross stream sealing oil pump.If the first empty top-cross stream sealing
Oil pump 45 has been turned on, and carries out step S119.
Step S119, judge that empty top-cross stream sealing oil pump exports main-piping pressure whether in the first preset range, be
It is no between 0.85~1MPa.If empty top-cross stream sealing oil pump exports main-piping pressure between 0.85~1MPa, carry out
Step S120.
Step S120, judge whether main oily hydrogen differential pressure control valve 8 is thrown automatically.If main oily hydrogen differential pressure control valve 8 is not thrown certainly
It is dynamic, send and main oily hydrogen differential pressure control valve is thrown into automatically instruction (step S121).If main oily hydrogen differential pressure control valve 8 has been thrown certainly
It is dynamic, carry out step S122.
In one embodiment, main oily hydrogen differential pressure control valve 8 throws automatic setting value for 84kPa.
Step S122, judge whether empty side fuel feeding main pipe electrically operated gate 5 has been opened and oily hydrogen differential pressure is in the 4th preset range.
If empty side fuel feeding main pipe electrically operated gate 5 is not opened, or oily hydrogen differential pressure does not send the empty side of unlatching in the 4th preset range, then and supplied
The instruction (step S123) of oily main pipe electrically operated gate.If empty side fuel feeding main pipe electrically operated gate 5 has been opened, and oily hydrogen differential pressure is between the 4th
In preset range, step S124 is carried out.
In one embodiment, the 4th above-mentioned preset range is 74~94kPa.
Step is 124, judge empty top-cross stream sealing oil pump and whether the interlocking of direct current sealing oil pump has put into.If empty top-cross
Stream sealing oil pump and the interlocking of direct current sealing oil pump are not put into, are sent and are thrown empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump
Instruct (step S125).If empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump have been put into, step S126 is carried out.
Step S126, judge whether hydrogen side fuel feeding main pipe electrically operated gate 31 has closed.If hydrogen side fuel feeding main pipe electrically operated gate 31 is not
Close, send the instruction (step S127) for closing hydrogen side fuel feeding main pipe electrically operated gate.If hydrogen side fuel feeding main pipe electrically operated gate 31 has been closed, enter
Row step S128.
Step S128, judge the first hydrogen side exchange sealing oil pump 52 whether have been turned on.If the first hydrogen side exchanges Seal Oil
Pump 52 is not actuated, sends and starts the instruction (step S129) that the first hydrogen side exchanges sealing oil pump.If the exchange sealing of the first hydrogen side
Oil pump 52 has been turned on, then carries out step S130.
Step S130, judge hydrogen side exchange sealing oil pump export main-piping pressure whether in above-mentioned first preset range,
I.e. whether between 0.85~1MPa.If hydrogen side exchange sealing oil pump exports main-piping pressure between 0.85~1MPa,
Carry out step S131.
Step S131, to judge whether empty hydrogen side balanced valve 40 has been thrown automatic.If empty hydrogen side balanced valve 40 does not throw automatic, hair
Go out and empty hydrogen side balanced valve is thrown into automatically instruction (step S132).If empty hydrogen side balanced valve 40 has thrown automatic, progress step
S133。
In one embodiment, empty hydrogen side balanced valve 40 throws automatic setting value for 500Pa.
Step S133, judge whether that hydrogen side fuel feeding main pipe electrically operated gate 31 has been opened, and empty hydrogen side differential pressure is between the 5th default model
In enclosing.If hydrogen side fuel feeding main pipe electrically operated gate 31 is not opened, or empty hydrogen side differential pressure sends unlatching not in the 5th preset range
The instruction (step S134) of hydrogen side fuel feeding main pipe electrically operated gate.If hydrogen side fuel feeding main pipe electrically operated gate 31 has been opened, and empty hydrogen side is poor
Pressure carries out step S135 in the 5th preset range.
In one embodiment, the 5th above-mentioned preset range is 400~600Pa.
Step S135, judge hydrogen side exchange sealing oil pump interlocking whether put into.If hydrogen side exchange sealing oil pump interlocking
Do not put into, send the instruction (step S136) for throwing hydrogen side exchange sealing oil pump interlocking.If the interlocking of hydrogen side exchange sealing oil pump is
Input, carries out step S137.
Step S137, judge whether the first smoke exhaust fan 58 the smoke exhaust fan 59 of entrance electrically operated gate 41 and second entrance electricity
Dynamic door 42 is turned off.If the entrance electrically operated gate of the smoke exhaust fan 59 of entrance electrically operated gate 41 or second of the first smoke exhaust fan 58
42 have one to be not turned off, or two entrances electrically operated gate is not turned off, then send closing first discharge fume fans entrance electrically operated gate and
The instruction (step S138) of second smoke evacuation fans entrance electrically operated gate.If the entrance electrically operated gate 41 and second of the first smoke exhaust fan 58
The entrance electrically operated gate 42 of smoke exhaust fan 59 is turned off, and carries out step S139.
Step S139, judge whether the first smoke exhaust fan 58 has been turned on.If the first smoke exhaust fan 58 is not actuated, sends and open
The instruction (step S140) of dynamic first smoke exhaust fan.If the first smoke exhaust fan 58 has been turned on, step S141 is carried out.
Step S141, judge smoke exhaust fan interlocking whether put into.If smoke exhaust fan interlocking is not put into, throwing smoke evacuation is sent
The instruction (step S142) of interlock of fan.
Start-up and shut-down control method shown in Fig. 2A, Fig. 2 B and Fig. 2 C is used to control thermal power plant's generator double-flow se al oil
Startup, therefore the start-up and shut-down control method shown in Fig. 2A, Fig. 2 B and Fig. 2 C is properly termed as the double-current ring Seal Oil system of thermal power plant generator
The starting step of system.
Step S103~step S111 purpose is to start direct current sealing oil pump 47, and the standby oily hydrogen differential pressure control valve that comes into operation
12, while it is working properly to test the empty side oil sources in the road.Step S115~step S125 purpose is to start empty top-cross stream Seal Oil
Pump 45 and 46, and the main oily hydrogen differential pressure control valve 8 that comes into operation, while it is normal to test the empty side active operation in the road.Step S126~step
S136 purpose is to start hydrogen side exchange sealing oil pump 52 and 53, and the sky hydrogen side balanced valve 40 that comes into operation, while testing hydrogen side oil sources
It is working properly.Step S137~step S142 purpose is to start smoke exhaust fan 58 and 59, by the air in empty side oil tank 63
Extracted out with the mixed gas of hydrogen.
In one embodiment, starting the enabled condition of step sequence is：1. steam turbine lubricating oil main-piping pressure is more than the first default pressure
Force value；2. the liquid level of empty side oil tank 63 is higher than default liquid level.Normally, the first above-mentioned preset pressure value is 0.15Mpa, in advance
If liquid level is 150mm.That is, it is necessary to prejudge whether steam turbine lubricating oil main-piping pressure is more than before step S101 is carried out
The liquid level of 0.15Mpa and empty side oil tank 63 is higher than 150mm, in the case where the two conditions are all met, and just allows to start.
The embodiment of the present invention also provides a kind of start-up and shut-down control method of thermal power plant's generator double-flow se al oil, and this is opened
The executive agent of stop control method can be computer system etc..As shown in figure 3, the start-up and shut-down control method includes：
2. and hydrogen side exchange sealing oil pump interlocking step S201, judge whether that 1. hydrogen side fuel feeding main pipe electrically operated gate 31 has been closed,
Have dropped out.If hydrogen side fuel feeding main pipe electrically operated gate 31 is not closed, or hydrogen side exchange sealing oil pump interlocking is not exited, then sends closing
The instruction of hydrogen side fuel feeding main pipe electrically operated gate and the instruction (step S202) for exiting hydrogen side exchange sealing oil pump interlocking.If above-mentioned two
Individual condition is satisfied by, and carries out step S203.
Step S203, judge whether that 1. the first hydrogen side exchange sealing oil pump 52 and second hydrogen side exchange sealing oil pump 53 has stopped
2. and empty hydrogen side balanced valve 40 has dropped out automatically only run,.If above-mentioned two condition can not be met, the first hydrogen side of stopping is sent
Exchange sealing oil pump and the second hydrogen side exchanges the instruction of sealing oil pump, and exit sky hydrogen side balanced valve and automatically instruct (step
S204).If meeting above-mentioned two condition, step S205 is carried out.
Step S205, judge whether to have dropped out sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, and have dropped out standby
It is automatic with oily hydrogen differential pressure control valve 12.If not exiting sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, or do not move back
Go out standby oily hydrogen differential pressure control valve 12 automatically, then send the finger for exiting sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump
Make, and exit standby oily hydrogen differential pressure control valve and automatically instruct (step S206).If have dropped out sky top-cross stream sealing oil pump and
Direct current sealing oil pump is interlocked, and has dropped out standby oily hydrogen differential pressure control valve automatically, carries out step S207.
Step S207, judge whether empty side fuel feeding main pipe electrically operated gate 5 has closed.If empty side fuel feeding main pipe electrically operated gate 5 is not closed,
Send the instruction (step S208) for closing empty side fuel feeding main pipe electrically operated gate.If empty side fuel feeding main pipe electrically operated gate 5 has been closed, walked
Rapid S209.
Step S209, judge whether that 1. the first empty empty top-cross stream sealing oil pump 46 of top-cross stream sealing oil pump 45 and second has stopped
2. and to have dropped out main oily hydrogen differential pressure control valve 8 automatic only run, 3. and have dropped out that fuel control valve 24 is automatic and oil extraction regulating valve
25 is automatic, 4. and has dropped out smoke exhaust fan interlocking.If being unsatisfactory for above-mentioned 4 conditions, the out of service first empty top-cross stream is sent
The instruction of the empty top-cross stream sealing oil pump 46 of sealing oil pump 45 and second, and exit the automatically instruction, and moving back of oily hydrogen differential pressure control valve 8
Go out fuel control valve 24 automatically and oil extraction regulating valve 25 is automatically instructed, and exit the instruction (step of smoke exhaust fan interlocking
S210).If above-mentioned 4 conditions are satisfied by, step S211 is carried out.
Step S211, judge whether that the first smoke exhaust fan 58 and the second smoke exhaust fan 59 are out of service.If first row
The smoke exhaust fan 59 of cigarette blower fan 58 or second is not out of service, sends the finger of the first smoke exhaust fan out of service and the second smoke exhaust fan
Make (step S212).
Stopping of the start-up and shut-down control method for controlling thermal power plant's generator double-flow se al oil described in Fig. 3, therefore Fig. 3
Shown start-up and shut-down control method is properly termed as the stopping step of thermal power plant's generator double-flow se al oil.
Step S201~step S204 purpose is first to stop hydrogen-side seal oil fuel feeding.Step S205~step S210 mesh
Be off the oily fuel feeding of sky side seal.Step S211 purpose is off smoke exhaust fan work.
In one embodiment, the enabled condition of stopping step sequence is：1. air pressure is less than the second preset pressure value in generator；②
Jiggering has stopped；3. hydrogen has been discharged in generator.Normally, the second above-mentioned preset pressure value is 20kPa.That is, when simultaneously
When meeting above-mentioned 3 conditions, just allow to stop.
Start-up and shut-down control method shown in Fig. 2A, Fig. 2 B, Fig. 2 C and Fig. 3 is double for moderate heat of embodiment of the present invention power generator
Flow the programed logic of ring sealing oil system.Following functions can be realized using the programed logic：Generated electricity in thermal power plant
Under machine double-flow se al oil full cut-off state, the automatic start of double-flow se al oil is realized；It is double in thermal power plant's generator
Flow under ring sealing oil system running status, realize being automatically stopped for double-flow se al oil；When the double-current ring of thermal power plant's generator
When sealing oil system startup program is run to a certain step, condition is unsatisfactory for, if artificially judging, the condition can ignore that, can be manual
The operation that leapfrog action continues startup program is carried out, is finished until double-flow se al oil starts.
Each step in start-up and shut-down control method shown in Fig. 2A, Fig. 2 B, Fig. 2 C and Fig. 3, first judges whether feedback receives,
Continue next step if receiving；If do not received, instruction is sent, to be feedback receive is waited.Due feedback letter is not being received
Number when, programed logic can rest on the step, wait operative.Power plant operations staff can find current operation step sequence not
The feedback signal received, artificially judges whether unreceived feedback signal influences continuing executing with for program programed logic.If
The feedback signal does not influence proceeding for present procedure control logic, and operations staff can operate leapfrog to act continuation program control
The execution of logic processed；If feedback signal influence present procedure control logic proceeds, operations staff can be according to looking into
The each unsatisfied feedback signal gone out, targetedly goes investigation problem, until receiving the feedback signal, continues executing with journey
Sequence control logic.
, can be in thermal power plant's generator double-flow se al oil by the start-up and shut-down control method in Fig. 2A, Fig. 2 B and Fig. 3
Under full cut-off state, the automatic start of generator double-flow se al oil is realized；In the double-current ring Seal Oil system of thermal power plant's generator
Under running status of uniting, being automatically stopped for generator double-flow se al oil is realized.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Apply specific embodiment in the present invention to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help to understand the method and its core concept of the present invention；Simultaneously for those of ordinary skill in the art,
According to the thought of the present invention, it will change in specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (13)
1. a kind of thermal power plant's generator double-flow se al oil, it is characterised in that the double-current ring sealing of thermal power plant's generator
Oil system includes：Empty side seal oil subsystem and hydrogen-side seal oil subsystem；
The empty side seal oil subsystem includes：Empty side seal ring, empty side oil tank, the first empty top-cross stream sealing oil pump, second
Empty top-cross stream sealing oil pump, empty side fuel feeding main pipe electrically operated gate, empty top-cross stream sealing oil pump recycling pressure maintaining valve, direct current Seal Oil
Pump, main oily hydrogen differential pressure control valve, standby oily hydrogen differential pressure control valve, the first smoke exhaust fan, the second smoke exhaust fan, the first empty side cooling
Device, the second empty side cooler, the first empty side fuel feeding filter screen, the second empty side fuel feeding filter screen, main oily hydrogen differential pressure control valve bypass are electronic
Door, empty side direct current sealing oil pump recycling pressure maintaining valve；
Described hydrogen-side seal oil subsystem includes：Hydrogen side sealing ring, hydrogen side oil tank, fuel control valve, oil extraction regulating valve,
One hydrogen side exchange sealing oil pump, the second hydrogen side exchange sealing oil pump, hydrogen side exchange sealing oil pump recycling pressure maintaining valve, hydrogen side fuel feeding
Main pipe electrically operated gate, the first hydrogen side cooler, the second hydrogen side cooler, the first hydrogen side fuel feeding filter screen and the second hydrogen side fuel feeding filter screen and
Empty hydrogen side balanced valve；
The empty side oil tank, hydrogen side oil tank pass through the hydrogen side of pipeline running fire motor and empty side respectively；The oil extraction regulating valve
It is arranged on the pipeline between the hydrogen side oil tank and the empty side oil tank；The hydrogen side oil tank passes through fuel control valve
It is connected with empty side oil feed line；
It is connected after first smoke exhaust fan, the second smoke evacuation fan parallel-connection connection with the empty side oil tank by pipeline, in institute
The entrance of the entrance and the second smoke exhaust fan of stating the first smoke exhaust fan is respectively equipped with entrance electrically operated gate, in first smoke exhaust fan
Outlet and the second smoke exhaust fan outlet be respectively equipped with outlet non-return door；
Described first empty top-cross stream sealing oil pump, the second empty top-cross stream sealing oil pump and empty top-cross stream sealing oil pump recycling voltage stabilizing
Valve is connected in parallel on the pipeline between the empty side oil tank and empty side fuel feeding main pipe electrically operated gate, in the described first empty top-cross stream
The two ends of sealing oil pump and the two ends of the second empty top-cross stream sealing oil pump are respectively equipped with entrance electrically operated gate and outlet electrically operated gate；It is described
Main oily hydrogen differential pressure control valve is arranged on another pipeline between the empty side oil tank and empty side fuel feeding main pipe electrically operated gate, institute
State main oily hydrogen differential pressure control valve bypass electrically operated gate to be connected in parallel with main oily hydrogen differential pressure control valve, in the main oily hydrogen differential pressure control valve
Two ends be respectively equipped with entrance electrically operated gate and outlet electrically operated gate；
The direct current sealing oil pump is arranged on the pipeline between the empty side oil tank and the electronic gate output terminal of empty side fuel feeding main pipe
On, the two ends of the direct current sealing oil pump are respectively equipped with entrance electrically operated gate and outlet electrically operated gate, the standby oily hydrogen differential pressure regulation
Valve is located on the pipeline between the direct current sealing oil pump and its outlet electrically operated gate；The empty side direct current sealing oil pump recycling is steady
Pressure valve is arranged on the pipeline between the empty side oil tank and the direct current sealing oil pump output end；It is close in the empty side direct current
The pipeline that oil sealing pump is recycled between pressure maintaining valve and the empty side oil tank recycles manually operated door provided with a direct current sealing oil pump；
On output end to the pipeline between the empty side seal ring of the empty side fuel feeding main pipe electrically operated gate, it is sequentially provided with described
First empty side cooler and the first empty side fuel feeding filter screen, the described second empty side cooler and the described first empty side cooler are in parallel even
Connect, the second empty side fuel feeding filter screen is connected in parallel with the first empty side fuel feeding filter screen, the two ends of the described first sky side cooler,
The two ends at the two ends of the second empty side cooler, the two ends of the first empty side fuel feeding filter screen and the second empty side fuel feeding filter screen be respectively equipped with into
Mouth electrically operated gate and outlet electrically operated gate；Output end after described first empty side fuel feeding filter screen and the second empty side fuel feeding filter screen are in parallel passes through
The fuel control valve is connected with the hydrogen side oil tank；
The first hydrogen side exchange sealing oil pump, the second hydrogen side exchange sealing oil pump and hydrogen side exchange sealing oil pump recycling voltage stabilizing
Valve is arranged in parallel on the pipeline between the hydrogen side oil tank and the hydrogen side fuel feeding main pipe electrically operated gate；In first hydrogen side
Exchange the two ends of sealing oil pump and the two ends of the second hydrogen side exchange sealing oil pump and be respectively equipped with entrance electrically operated gate and outlet electrically operated gate；
On output end to the pipeline between the hydrogen side sealing ring of the hydrogen side fuel feeding main pipe electrically operated gate, it is sequentially provided with described
First hydrogen side cooler, the first hydrogen side fuel feeding filter screen and empty hydrogen side balanced valve, the second hydrogen side cooler and first hydrogen
Side cooler is connected in parallel, and the second hydrogen side fuel feeding filter screen is connected in parallel with the first hydrogen side fuel feeding filter screen, in first hydrogen
The two ends of side cooler, the two ends of the second hydrogen side cooler, the two ends of the first hydrogen side fuel feeding filter screen and the second hydrogen side fuel feeding filter screen
Two ends be respectively equipped with entrance electrically operated gate and outlet electrically operated gate；
Seal Oil in the hydrogen side oil tank sequentially passes through the first hydrogen side exchange sealing oil pump and/or the exchange of the second hydrogen side
Sealing oil pump, the first hydrogen side cooler and/or the second hydrogen side cooler, the first hydrogen side fuel feeding filter screen and/or the first hydrogen side fuel feeding
Filter screen, empty hydrogen side balanced valve enter the hydrogen side sealing ring；
Seal Oil in the empty side oil tank sequentially passes through the described first empty top-cross stream sealing oil pump and/or the second empty top-cross stream
Sealing oil pump, the first empty side cooler and/or the second empty side cooler, the first empty side fuel feeding filter screen and/or the second empty side fuel feeding
Filter screen enters the empty side seal ring.
2. thermal power plant's generator double-flow se al oil according to claim 1, it is characterised in that when hydrogen side storage
When liquid level in fuel tank presets liquid level more than first, the sealing oil return in hydrogen side oil tank is adjusted by the oil extraction
Valve drains into the entrance of the described first empty top-cross stream sealing oil pump and/or the entrance of the second empty top-cross stream sealing oil pump；When the hydrogen
When liquid level in the oil tank of side presets liquid level less than second, the Seal Oil in the empty side oil feed line passes through described
Fuel control valve is filled into automatically.
3. thermal power plant's generator double-flow se al oil according to claim 1, it is characterised in that when the described first sky
When top-cross stream sealing oil pump and/or the second empty top-cross stream sealing oil pump out of service, Seal Oil in the empty side oil tank according to
It is secondary by the direct current sealing oil pump, the first empty side cooler and/or the second empty side cooler, the first empty side fuel feeding filter screen and/
Or second empty side fuel feeding filter screen enter the empty side seal ring.
4. thermal power plant's generator double-flow se al oil according to claim 1, it is characterised in that thermal power plant's hair
Motor double-flow se al oil also includes：Double-flow se al oil programed logic button, empty top-cross stream sealing oil pump
Sealing oil pump block push button, smoke exhaust fan block push button, manual confirmation jiggering are exchanged with direct current sealing oil pump block push button, hydrogen side
Stop button and manual confirmation generator hydrogen have discharged button.
5. a kind of start-up and shut-down control method of thermal power plant's generator double-flow se al oil, it is characterised in that thermal power plant's hair
The start-up and shut-down control method of motor double-flow se al oil includes：
Judge whether the entrance electrically operated gate, outlet electrically operated gate and the second empty top-cross stream sealing oil pump of the first empty top-cross stream sealing oil pump
Entrance electrically operated gate, outlet electrically operated gate opened, and empty side fuel feeding main pipe electrically operated gate has been opened, and main oily hydrogen differential pressure control valve enters
Mouthful electrically operated gate and outlet electrically operated gate have been opened, and main oily hydrogen differential pressure control valve bypass electrically operated gate has been closed, and direct current sealing oil pump enters
Mouth electrically operated gate and outlet electrically operated gate have been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first empty side cooler have been opened, and second
The entrance electrically operated gate and outlet electrically operated gate of empty side cooler have been closed, and the entrance electrically operated gate and outlet electricity of the first empty side fuel feeding filter screen
Dynamic door has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the second empty side fuel feeding filter screen have been closed, and the first hydrogen side exchange Seal Oil
Entrance electrically operated gate, the entrance electrically operated gate of outlet electrically operated gate and the second hydrogen side exchange sealing oil pump, the outlet electrically operated gate of pump have been opened；
And hydrogen side fuel feeding main pipe electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first hydrogen side cooler have been opened, and second
The entrance electrically operated gate and outlet electrically operated gate of hydrogen side cooler have been closed, and the entrance electrically operated gate and outlet electricity of the first hydrogen side fuel feeding filter screen
Dynamic door has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the second hydrogen side fuel feeding filter screen have been closed, and fuel control valve has been thrown automatically,
And oil extraction regulating valve has been thrown automatically；Open the entrance electrically operated gate of the described first empty top-cross stream sealing oil pump if it is not, then sending, go out
Mouth electrically operated gate and the entrance electrically operated gate of the second empty top-cross stream sealing oil pump, the instruction for exporting electrically operated gate, and the unlatching empty side are supplied
The instruction of oily main pipe electrically operated gate, and open the entrance electrically operated gate of the main oily hydrogen differential pressure control valve and export the instruction of electrically operated gate,
And the instruction of the main oily hydrogen differential pressure control valve bypass electrically operated gate is closed, and open the entrance electrically operated gate of the direct current sealing oil pump
And the instruction of outlet electrically operated gate, and open the entrance electrically operated gate of the described first empty side cooler and export the instruction of electrically operated gate, and
Close the entrance electrically operated gate of the second empty side cooler and export the instruction of electrically operated gate, and open the entrance of the first empty side fuel feeding filter screen
Electrically operated gate and the instruction for exporting electrically operated gate, and close the entrance electrically operated gate of the second empty side fuel feeding filter screen and export the finger of electrically operated gate
Order, and open the entrance electrically operated gate, outlet electrically operated gate and the second hydrogen side exchange sealing oil pump of the first hydrogen side exchange sealing oil pump
Entrance electrically operated gate, the instruction for exporting electrically operated gate；And the instruction of hydrogen side fuel feeding main pipe electrically operated gate is opened, and open the cooling of the first hydrogen side
The entrance electrically operated gate of device and the instruction for exporting electrically operated gate, and close the entrance electrically operated gate and outlet electrically operated gate of the second hydrogen side cooler
Instruction, and open the first hydrogen side fuel feeding filter screen entrance electrically operated gate and export electrically operated gate instruction, and close the second hydrogen side supply
The entrance electrically operated gate of oil screen and the instruction for exporting electrically operated gate, and fuel control valve is thrown into automatic instruction, and oil extraction is adjusted
Valve throws automatic instruction；
If it is, judging whether the outlet electrically operated gate of the direct current sealing oil pump has closed；If the direct current sealing oil pump goes out
Mouth electrically operated gate is not closed, is sent and is closed the instruction that direct current sealing oil pump exports electrically operated gate；
If the outlet electrically operated gate of the direct current sealing oil pump has been closed, judge whether the direct current sealing oil pump has been turned on；If
The direct current sealing oil pump is not actuated, sends the instruction for starting direct current sealing oil pump；
If the direct current sealing oil pump has been turned on, judge whether the outlet pressure of the direct current sealing oil pump is default between first
In the range of；
If the outlet pressure of the direct current sealing oil pump is in first preset range, standby oily hydrogen differential pressure regulation is judged
Whether valve is thrown automatically；If the standby oily hydrogen differential pressure control valve is not thrown automatically, send and throw standby oily hydrogen differential pressure control valve certainly
Dynamic instruction；
If the standby oily hydrogen differential pressure control valve has been thrown automatically, the outlet electrically operated gate of the direct current sealing oil pump is judged whether
Open, and oily hydrogen differential pressure is in the second preset range；If the outlet electrically operated gate of the direct current sealing oil pump is not opened, or oily hydrogen
Differential pressure sends the instruction for the outlet electrically operated gate for opening direct current sealing oil pump not in the second preset range；
If the outlet electrically operated gate of the direct current sealing oil pump has been opened, and oily hydrogen differential pressure, in the second preset range, judgement is
No delay reaches preset time, and hydrogen side oil tank liquid level in the 3rd preset range；
If delay reaches the preset time, and the hydrogen side oil tank liquid level in the 3rd preset range, sentence
Whether the direct current sealing oil pump that breaks is out of service；If the direct current sealing oil pump is not out of service, send out of service
The instruction of direct current sealing oil pump；
If the direct current sealing oil pump is out of service, judge whether the empty side fuel feeding main pipe electrically operated gate has closed；If institute
State sky side fuel feeding main pipe electrically operated gate not close, send the instruction for closing empty side fuel feeding main pipe electrically operated gate；
If the empty side fuel feeding main pipe electrically operated gate has been closed, judge whether the described first empty top-cross stream sealing oil pump has been turned on；Such as
Really described first empty top-cross stream sealing oil pump is not actuated, sends the instruction for starting the first empty top-cross stream sealing oil pump；
If the described first empty top-cross stream sealing oil pump has been turned on, judge whether empty top-cross stream sealing oil pump outlet main-piping pressure is situated between
In in first preset range；
If empty top-cross stream sealing oil pump exports main-piping pressure in first preset range, the main oily hydrogen differential pressure is judged
Whether regulating valve throws automatically；If the main oily hydrogen differential pressure control valve is not thrown automatically, send and throw main oily hydrogen differential pressure control valve certainly
Dynamic instruction；
If the main oily hydrogen differential pressure control valve has been thrown automatically, judge whether that the empty side fuel feeding main pipe electrically operated gate has been opened, and oil
Hydrogen differential pressure is in the 4th preset range；If the empty side fuel feeding main pipe electrically operated gate is not opened, or oily hydrogen differential pressure is not between the
In four preset ranges, the instruction for opening empty side fuel feeding main pipe electrically operated gate is sent；
If the empty side fuel feeding main pipe electrically operated gate has been opened, and oily hydrogen differential pressure is in the 4th preset range, judges empty top-cross stream
Whether sealing oil pump and the interlocking of direct current sealing oil pump have put into；If empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump are not
Input, sends the instruction for throwing empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump；
If empty top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump have been put into, judge that the hydrogen side fuel feeding main pipe electrically operated gate is
It is no to have closed；If the hydrogen side fuel feeding main pipe electrically operated gate is not closed, the instruction for closing hydrogen side fuel feeding main pipe electrically operated gate is sent；
If the hydrogen side fuel feeding main pipe electrically operated gate has been closed, judge whether the first hydrogen side exchange sealing oil pump has been turned on；If institute
State the first hydrogen side exchange sealing oil pump not actuated, send and start the instruction that the first hydrogen side exchanges sealing oil pump；
If the first hydrogen side exchange sealing oil pump has been turned on, judge whether hydrogen side exchange sealing oil pump outlet main-piping pressure is situated between
In in first preset range；
If hydrogen side exchange sealing oil pump exports main-piping pressure in first preset range, judge that empty hydrogen side balanced valve is
It is no to have thrown automatically；If the empty hydrogen side balanced valve is not thrown automatically, send and empty hydrogen side balanced valve is thrown into automatic instruction；
If the empty hydrogen side balanced valve has been thrown automatically, judge whether that the hydrogen side fuel feeding main pipe electrically operated gate has been opened, and empty hydrogen side
Differential pressure is in the 5th preset range；If the hydrogen side fuel feeding main pipe electrically operated gate is not opened, or empty hydrogen side differential pressure is not between institute
State in the 5th preset range, send the instruction for opening hydrogen side fuel feeding main pipe electrically operated gate；
If the hydrogen side fuel feeding main pipe electrically operated gate has been opened, and empty hydrogen side differential pressure judges hydrogen in the 5th preset range
Whether the interlocking of top-cross stream sealing oil pump has put into；If hydrogen side exchange sealing oil pump interlocking is not put into, throwing hydrogen side exchange is sent close
The instruction of oil sealing pump interlocking；
If hydrogen side exchange sealing oil pump interlocking has been put into, judge whether entrance electrically operated gate and the second smoke evacuation of the first smoke exhaust fan
The entrance electrically operated gate of blower fan is turned off；If the entrance electrically operated gate of first smoke exhaust fan or the entrance of the second smoke exhaust fan
Electrically operated gate is not turned off, and sends the finger of the entrance electrically operated gate for closing the first smoke exhaust fan and the entrance electrically operated gate of the second smoke exhaust fan
Order；
If the entrance electrically operated gate of first smoke exhaust fan and the entrance electrically operated gate of the second smoke exhaust fan are turned off, judge described
Whether the first smoke exhaust fan has been turned on；If first smoke exhaust fan is not actuated, the instruction for starting the first smoke exhaust fan is sent；
If first smoke exhaust fan has been turned on, judge whether smoke exhaust fan interlocking has put into；If smoke exhaust fan is interlocked not
Input, sends the instruction for throwing smoke exhaust fan interlocking.
6. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 5, its feature exists
In described start-up and shut-down control method also includes：
Judge whether that the hydrogen side fuel feeding main pipe electrically operated gate has been closed, and hydrogen side exchange sealing oil pump interlocking has dropped out；If not, hair
Go out to close the instruction of hydrogen side fuel feeding main pipe electrically operated gate, and exit the instruction of hydrogen side exchange sealing oil pump interlocking；
If it is, judge whether that the first hydrogen side exchange sealing oil pump and the second hydrogen side exchange sealing oil pump are out of service,
And the empty hydrogen side balanced valve has dropped out automatically；If not, sending the first hydrogen side of stopping exchange sealing oil pump and the friendship of the second hydrogen side
The instruction of sealing oil pump is flowed, and exits sky hydrogen side balanced valve and is automatically instructed；
If it is, judging whether to have dropped out sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, and have dropped out standby oily hydrogen
Differential pressure control valve is automatic；If not, sending the instruction for exiting sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, and exit
Standby oily hydrogen differential pressure control valve is automatically instructed；
If having dropped out sky top-cross stream sealing oil pump and the interlocking of direct current sealing oil pump, and have dropped out standby oily hydrogen differential pressure control valve certainly
It is dynamic, judge whether the empty side fuel feeding main pipe electrically operated gate has closed；If the empty side fuel feeding main pipe electrically operated gate is not closed, closing is sent
The instruction of empty side fuel feeding main pipe electrically operated gate；
If the empty side fuel feeding main pipe electrically operated gate has been closed, judge whether the described first empty top-cross stream sealing oil pump and the second empty side
Exchange sealing oil pump out of service, and it is automatic to have dropped out main oily hydrogen differential pressure control valve, and have dropped out fuel control valve it is automatic and
Oil extraction regulating valve is automatic, and has dropped out smoke exhaust fan interlocking；If not, send the out of service first empty top-cross stream sealing oil pump and
The instruction of second empty top-cross stream sealing oil pump, and exit oily hydrogen differential pressure control valve and automatically instruct, and exit fuel control valve from
Dynamic and oil extraction regulating valve is automatically instructed, and exits the instruction of smoke exhaust fan interlocking；
If it is, judging whether that first smoke exhaust fan and the second smoke exhaust fan are out of service；If first smoke evacuation
Blower fan or the second smoke exhaust fan be not out of service, sends the instruction of the first smoke exhaust fan out of service and the second smoke exhaust fan.
7. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 5, its feature exists
In described start-up and shut-down control method also includes：
Judge whether that steam turbine lubricating oil main-piping pressure is more than the first preset pressure value, and the liquid level of empty side oil tank is higher than default liquid
Position；If steam turbine lubricating oil main-piping pressure is more than the first preset pressure value, and the liquid level of empty side oil tank is higher than default liquid level, then
Judge whether that the entrance electrically operated gate, outlet electrically operated gate and the second empty top-cross stream sealing oil pump of the first empty top-cross stream sealing oil pump enter
Mouth electrically operated gate, outlet electrically operated gate have been opened, and empty side fuel feeding main pipe electrically operated gate has been opened, and the entrance electricity of main oily hydrogen differential pressure control valve
Dynamic door and outlet electrically operated gate have been opened, and main oily hydrogen differential pressure control valve bypass electrically operated gate has been closed, and the entrance electricity of direct current sealing oil pump
Dynamic door and outlet electrically operated gate have been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first empty side cooler have been opened, and the second empty side
The entrance electrically operated gate and outlet electrically operated gate of cooler have been closed, and the entrance electrically operated gate and outlet electrically operated gate of the first empty side fuel feeding filter screen
It has been opened that, and the entrance electrically operated gate and outlet electrically operated gate of the second empty side fuel feeding filter screen have been closed, and the first hydrogen side exchange sealing oil pump
Entrance electrically operated gate, the entrance electrically operated gate of outlet electrically operated gate and the second hydrogen side exchange sealing oil pump, outlet electrically operated gate have been opened；And hydrogen
Side fuel feeding main pipe electrically operated gate has been opened, and the entrance electrically operated gate and outlet electrically operated gate of the first hydrogen side cooler have been opened, and the second hydrogen side
The entrance electrically operated gate and outlet electrically operated gate of cooler have been closed, and the entrance electrically operated gate and outlet electrically operated gate of the first hydrogen side fuel feeding filter screen
It has been opened that, and the entrance electrically operated gate and outlet electrically operated gate of the second hydrogen side fuel feeding filter screen have been closed, and fuel control valve has been thrown automatically, and row
Oily regulating valve has been thrown automatically.
8. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 6, its feature exists
In described start-up and shut-down control method also includes：
Judge whether that air pressure is less than the second preset pressure value in generator, and jiggering has stopped, and hydrogen has been discharged in generator；
If air pressure is less than the second preset pressure value in generator, and jiggering has stopped, and hydrogen has been discharged in generator, is judged whether
Hydrogen side fuel feeding main pipe electrically operated gate has been closed, and hydrogen side exchange sealing oil pump interlocking has dropped out.
9. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 5, its feature exists
In first preset range, the second preset range, the 3rd preset range, the 4th preset range and the 5th preset range difference
For：0.85Mpa~1Mpa, 46kPa~66kPa, 400mm~600mm, 74kPa~94kPa, 400Pa~600Pa.
10. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 5, its feature exists
In it is 400mm that the fuel control valve, which throws automatic setting value, and it is 600mm, institute that the oil extraction regulating valve, which throws automatic setting value,
It is 56kPa to state standby oily hydrogen differential pressure control valve and throw automatic setting value, and the main oily hydrogen differential pressure control valve throws automatic setting value
For 84kPa, it is 500Pa that the empty hydrogen side balanced valve, which throws automatic setting value,.
11. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 7, its feature exists
In first preset pressure value is 0.15Mpa, and the default liquid level is 150mm.
12. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 8, its feature exists
In second preset pressure value is 20kPa.
13. the start-up and shut-down control method of thermal power plant's generator double-flow se al oil according to claim 5, its feature exists
In the preset time is 5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630039.0A CN106051169B (en) | 2016-08-03 | 2016-08-03 | Thermal power plant's generator double-flow se al oil and its start-up and shut-down control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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