CN106015898B - Thermal power plant's generator single-flow seal oil and its start-up and shut-down control method - Google Patents
Thermal power plant's generator single-flow seal oil and its start-up and shut-down control method Download PDFInfo
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- CN106015898B CN106015898B CN201610630032.9A CN201610630032A CN106015898B CN 106015898 B CN106015898 B CN 106015898B CN 201610630032 A CN201610630032 A CN 201610630032A CN 106015898 B CN106015898 B CN 106015898B
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- operated gate
- oil
- fuel feeding
- seal oil
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000000446 fuel Substances 0.000 claims abstract description 242
- 239000002828 fuel tank Substances 0.000 claims abstract description 134
- 238000007789 sealing Methods 0.000 claims abstract description 112
- 239000000779 smoke Substances 0.000 claims abstract description 106
- 230000001105 regulatory effect Effects 0.000 claims abstract description 43
- 239000000284 extract Substances 0.000 claims abstract description 13
- 238000004064 recycling Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 442
- 239000010687 lubricating oil Substances 0.000 claims description 98
- 239000001257 hydrogen Substances 0.000 claims description 58
- 229910052739 hydrogen Inorganic materials 0.000 claims description 58
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 47
- 239000000498 cooling water Substances 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- 238000012790 confirmation Methods 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 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
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
-
- 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
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
-
- 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
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
-
- 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
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
-
- 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
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N2039/007—Using strainers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a kind of thermal power plant's generator single-flow seal oil and its start-up and shut-down control method, the system includes：Generator sealing ring, oil return enlarged slot, middle fuel tank, middle fuel level in tank regulating valve, air extracts groove out, vaccum fuel tank, seal oil vacuum pump, first primary seal oil pump, second primary seal oil pump, exchange sealing oil pump recycling pressure maintaining valve, vaccum fuel tank oil level regulating valve, Seal Oil recirculation pump, first fuel feeding filter screen, second fuel feeding filter screen, fuel feeding adjusts valve, fuel feeding adjusts valve bypass electrically operated gate, first smoke exhaust fan, second row wind and smoke machine, separator, Seal Oil vacuum cooler and a plurality of pipeline.The automatic start of generator single-flow seal oil under thermal power plant's generator single-flow seal oil full cut-off state, can be realized using the present invention；Under thermal power plant's generator single-flow seal oil running status, being automatically stopped for generator single-flow seal oil is realized.
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 thermal power plant's generator single current ring
Sealing oil system and its start-up and shut-down control method.
Background technology
The major function of thermal power plant's generator single-flow seal oil is to generator sealing bearing bush fuel feeding, and makes oil pressure height
Certain numerical value is pressed in hydrogen in generator, to prevent that hydrogen leaks 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.Existing thermal power plant's generator single-flow seal oil is complete
Stop under state, the automatic start of single-flow seal oil can not be realized；Also can not be in single-flow seal oil running status
Under, realize being automatically stopped for single-flow seal oil；And when single-flow seal oil startup program is run to a certain step
When, if the step sequence condition is unsatisfactory for, the operation of startup program can not be continued.
The content of the invention
To solve the above problems, the invention provides a kind of thermal power plant's generator single-flow seal oil and its start and stop control
Method processed.
One aspect of the present invention provides a kind of thermal power plant's generator single-flow seal oil, thermal power plant's generator list
Stream ring sealing oil system includes：Generator sealing ring, oil return enlarged slot, middle fuel tank, middle fuel level in tank regulating valve, air are taken out
Go out groove, vaccum fuel tank, sealing oil vacuum pump, the first primary seal oil pump, the second primary seal oil pump, the recycling of exchange sealing oil pump surely
Pressure valve, vaccum fuel tank oil level regulating valve, Seal Oil recirculation pump, the first fuel feeding filter screen, the second fuel feeding filter screen, fuel feeding are adjusted valve, supplied
Oil adjusts valve bypass electrically operated gate, the first smoke exhaust fan, second row wind and smoke machine, separator, Seal Oil vacuum cooler and a plurality of pipeline；
The oil return enlarged slot, air extract hydrogen side and sky that groove connects the generator sealing ring by pipeline respectively out
Side；The oil return enlarged slot is extracted groove out with the air respectively by two-way pipeline and is connected, and is set successively on a pipeline wherein
Have the middle oil case and middle fuel level in tank regulating valve, wherein the both ends of the middle oil case be respectively equipped with entrance electrically operated gate and
Electrically operated gate is exported, a middle fuel tank bypass electrically operated gate is provided with another pipeline；The oil return enlarged slot passes sequentially through first
Balance gate and the second balance gate and the middle fuel tank connect；
The first primary seal oil pump and the second primary seal oil pump are connected in the vaccum fuel tank and primary seal oil pump in parallel
Export on the pipeline between main pipe non-return flap, at the both ends of the first primary seal oil pump and the both ends of the second primary seal oil pump point
She You not entrance electrically operated gate and outlet electrically operated gate；It is described exchange sealing oil pump recycling pressure maintaining valve be arranged at the vaccum fuel tank with
On pipeline between primary seal fuel pump outlet main pipe non-return flap；The Seal Oil recirculation pump is connected with the vaccum fuel tank,
The both ends of the Seal Oil recirculation pump are respectively equipped with entrance electrically operated gate and outlet electrically operated gate；
Set successively on pipeline between lubricating oil main pipe and the output end of the primary seal fuel pump outlet main pipe non-return flap
There are the first lubricating oil fuel feeding isolating door, the first lubricating oil fuel feeding non-return flap, the 3rd lubricating oil fuel feeding isolating door, the second lubricating oil to supply
Oily non-return flap；In being provided with pipeline between the first lubricating oil fuel feeding non-return flap and the middle fuel tank bypass electrically operated gate
Between tank drainback non-return flap；Output end and the first lubricating oil fuel feeding non-return flap in the middle tank drainback non-return flap
The second lubricating oil fuel feeding isolating door is sequentially provided with pipeline between output end and vaccum fuel tank and the vaccum fuel tank oil level is adjusted
Save valve；
The entrance electrically operated gate of sealed oil vacuum pump, the filter screen connection of sealing oil vacuum pump are described close successively for the vaccum fuel tank
Oil sealing vavuum pump, the output end of the sealing oil vacuum pump connect the separator and Seal Oil vacuum cooler respectively；It is described
Seal Oil vacuum cooler is connected by two cooling water electrically operated gates with cooling water system；
On output end to the pipeline between the generator sealing ring of the primary seal fuel pump outlet main pipe non-return flap,
It is sequentially provided with the first fuel feeding filter screen and fuel feeding and adjusts valve, the both ends point of valve is adjusted at the both ends of the first fuel feeding filter screen and fuel feeding
She You not entrance electrically operated gate and outlet electrically operated gate；The second fuel feeding filter screen is connected in parallel with the first fuel feeding filter screen, and
Entrance electrically operated gate and outlet electrically operated gate are respectively equipped with the both ends of the second fuel feeding filter screen；The fuel feeding adjusts valve bypass electrically operated gate
One end connect the input that the fuel feeding adjusts the entrance electrically operated gate of valve, the other end connects the outlet electrically operated gate that the fuel feeding adjusts valve
Output end；
The air is taken out to be connected respectively out of the groove and through pipeline with first smoke exhaust fan, second row wind and smoke machine, and
First smoke exhaust fan, the both ends of second row wind and smoke machine are respectively equipped with entrance electrically operated gate and outlet electrically operated gate.
In one embodiment, the Seal Oil oil return of generator sealing ring hydrogen side is successively by the oil return enlarged slot, centre
Fuel tank, air extract groove out and enter grease-box；The Seal Oil oil return of generator sealing annular space side is extracted groove out by the air and entered
Enter grease-box.
In one embodiment, the Seal Oil in the vaccum fuel tank all the way successively by the first primary seal oil pump and/
Or the second primary seal oil pump, the first fuel feeding filter screen and/or the second fuel feeding filter screen, fuel feeding adjust valve or fuel feeding to adjust valve bypass electrically operated gate to enter
Enter the generator sealing ring；Seal Oil another way in the vaccum fuel tank is constantly followed into the Seal Oil recirculation pump
Ring；The hydrogen separated out in the vaccum fuel tank is successively by the Seal Oil vacuum pump inlet electrically operated gate, sealing oil vacuum pump filter
Net enters the sealing oil vacuum pump.
In one embodiment, when the first primary seal oil pump and/or the second primary seal oil pump out of service, lubricating oil
Lubricating oil in main pipe is successively by the first lubricating oil fuel feeding isolating door, the first lubricating oil fuel feeding non-return flap, the 3rd lubrication
Oily fuel feeding isolating door, the second lubricating oil fuel feeding non-return flap, the first fuel feeding filter screen and/or the second fuel feeding filter screen, fuel feeding adjust valve or confession
Oil adjusts valve bypass electrically operated gate to enter the generator sealing ring.
In one embodiment, it is additionally provided with thermal power plant's generator single-flow seal oil：Single current ring Seal Oil
System program control logic button, primary seal oil pump block push button, smoke exhaust fan block push button, manual confirmation jiggering have stopped pressing
Button and manual confirmation generator hydrogen have discharged button.
Another aspect of the present invention additionally provides a kind of start-up and shut-down control method of thermal power plant's generator single-flow seal oil,
The start-up and shut-down control method of thermal power plant's generator single-flow seal oil includes：
Judge whether the entrance electrically operated gate and the entrance of outlet electrically operated gate and the second primary seal oil pump of the first primary seal oil pump
Electrically operated gate and outlet electrically operated gate have been opened, and the entrance electrically operated gate of Seal Oil recirculation pump and outlet electrically operated gate have been opened, and second
Lubricating oil fuel feeding isolating door, the 3rd lubricating oil fuel feeding isolating door have been opened, and the first lubricating oil fuel feeding isolating door has closed, and first supplies
The entrance electrically operated gate and outlet electrically operated gate of oil screen have been opened, and the entrance electrically operated gate of the second fuel feeding filter screen and outlet electrically operated gate are
Close, and fuel feeding adjusts the entrance electrically operated gate of valve and outlet electrically operated gate to open, and fuel feeding adjusts valve bypass electrically operated gate to close, and middle fuel tank
Entrance electrically operated gate and outlet electrically operated gate opened, and middle fuel tank bypass electrically operated gate opened, and the first balance gate and second balance
Door has been opened；If it is not, then send open the first primary seal oil pump entrance electrically operated gate and outlet electrically operated gate and second master it is close
The instruction of the entrance electrically operated gate and outlet electrically operated gate of oil sealing pump, and open the entrance electrically operated gate of the Seal Oil recirculation pump and go out
The instruction of mouth electrically operated gate, and the instruction of the second lubricating oil fuel feeding isolating door and the 3rd lubricating oil fuel feeding isolating door is opened, and close
The instruction of first lubricating oil fuel feeding isolating door, and open the entrance electrically operated gate of the first fuel feeding filter screen and the finger of outlet electrically operated gate
Order, and the instruction of the entrance electrically operated gate and outlet electrically operated gate of the second fuel feeding filter screen is closed, and open the fuel feeding and adjust valve
The instruction of entrance electrically operated gate and outlet electrically operated gate；And during the closing fuel feeding adjusts the instruction of valve bypass electrically operated gate, and unlatching is described
Between fuel tank entrance electrically operated gate and outlet electrically operated gate instruction, and open among fuel tank bypass electrically operated gate instruction, and open institute
State the instruction of the first balance gate and the second balance gate；
If it is, judge whether that the first lubricating oil fuel feeding isolating door has been opened, and oil-hydrogen pressure difference is in the first preset range
It is interior, and the oil level of the middle fuel tank is in the second preset range, and the oil level of vaccum fuel tank is in the 3rd preset range；If
It is no, the instruction for opening the first lubricating oil fuel feeding isolating door is sent, and adjust valve to throw pressure difference the fuel feeding and automatically instruct, and
The middle fuel level in tank regulating valve is thrown into automatically instruction, and the vaccum fuel tank oil level regulating valve is thrown into automatically instruction；
If the first lubricating oil fuel feeding isolating door has been opened, and oil-hydrogen pressure difference is in first preset range, and institute
The oil level of middle fuel tank is stated in second preset range, and the oil level of the vaccum fuel tank is in the 3rd preset range
It is interior, judge whether that the outlet electrically operated gate of first row wind and smoke machine and the outlet electrically operated gate of second row wind and smoke machine have been opened, and described first
The entrance electrically operated gate of air draft cigarette machine and the entrance electrically operated gate of second row wind and smoke machine have been closed；First row wind and smoke is opened if not, sending
Machine exports the instruction of electrically operated gate and second row wind and smoke machine outlet electrically operated gate, and closes first row wind flue gas turbine inlet electrically operated gate and second
The instruction of air draft flue gas turbine inlet electrically operated gate；
If the outlet electrically operated gate of the first row wind and smoke machine and the outlet electrically operated gate of second row wind and smoke machine have been opened, and described
The entrance electrically operated gate of first row wind and smoke machine and the entrance electrically operated gate of second row wind and smoke machine have been closed, and have judged whether the first smoke exhaust fan
Start, and the entrance electrically operated gate of first smoke exhaust fan has been opened；If it is not, then send the finger for starting first smoke exhaust fan
Order, and open the instruction of the first smoke evacuation fans entrance electrically operated gate；
If first smoke exhaust fan has been turned on, and the entrance electrically operated gate of first smoke exhaust fan has been opened, and judges to arrange
Whether cigarette interlock of fan has put into；If not, send the instruction for throwing smoke exhaust fan interlocking；
If smoke exhaust fan interlocking has been put into, judge whether that Seal Oil recirculation pump has been turned on, and the Seal Oil is followed again
The outlet pressure of ring pump is more than the first preset pressure value；If not, send the instruction for starting Seal Oil recirculation pump；
If the Seal Oil recirculation pump has been turned on, judge whether that the first primary seal oil pump has been turned on, and sealing oil pump
The pressure of outlet main pipe is more than the second preset pressure value；If not, send the instruction for starting the first primary seal oil pump；
If the first primary seal oil pump has been turned on, and the pressure of sealing oil pump outlet main pipe is more than described second
Preset pressure value, judges whether the interlocking of primary seal oil pump has put into；If not, send the instruction of input primary seal oil pump interlocking；
If the interlocking of primary seal oil pump has been put into, the entrance electrically operated gate for judging whether to seal oil vacuum pump has been closed, and described
Two cooling water electrically operated gates that sealing oil vacuum pump is connected have been opened；The Seal Oil vacuum pump inlet is closed if not, sending
The instruction of electrically operated gate, and open the instruction for two cooling water electrically operated gates being connected with the sealing oil vacuum pump；
If the entrance electrically operated gate of the sealing oil vacuum pump has been closed, and described two cooling water electrically operated gates have been opened, and are sentenced
Whether the disconnected sealing oil vacuum pump has been turned on and runs the scheduled time；If not, send the instruction for starting sealing oil vacuum pump；
If the sealing oil vacuum pump has been turned on and runs the scheduled time, entering for the sealing oil vacuum pump is judged
Whether mouth electrically operated gate has been opened；If not, send the instruction for opening Seal Oil vacuum pump inlet electrically operated gate；
If the entrance electrically operated gate of the sealing oil vacuum pump has been opened, judge whether the pressure in the vaccum fuel tank is less than
3rd preset pressure value；
If the pressure in the vaccum fuel tank is less than the 3rd preset pressure value, judge whether the hydrogen pressure in generator is more than
4th preset pressure value；
If the hydrogen pressure in the generator is more than the 4th preset pressure value, whether middle fuel tank bypass electrically operated gate is judged
Close；If not, send the instruction for closing middle fuel tank bypass electrically operated gate.
In one embodiment, described start-up and shut-down control method also includes：
Judge whether the hydrogen pressure in generator is less than the 4th preset pressure value；
If the hydrogen pressure in generator is less than the 4th preset pressure value, judge that the middle fuel tank bypass electrically operated gate is
It is no to have opened；If not, send the instruction for opening middle fuel tank bypass electrically operated gate；
If the middle fuel tank bypass electrically operated gate has been opened, judge whether the interlocking of primary seal oil pump has dropped out；If not, hair
Go out to exit the instruction of primary seal oil pump interlocking；
If the interlocking of primary seal oil pump has dropped out, the first primary seal oil pump and the second primary seal oil pump are judged whether
It is out of service, and the Seal Oil recirculation pump is out of service；If not, send the first primary seal oil pump out of service and
The instruction of two primary seal oil pumps, and the instruction of the Seal Oil recirculation pump out of service；
If the first primary seal oil pump and the second primary seal oil pump are out of service, and the Seal Oil recirculation pump
It is out of service, judge whether that jiggering has stopped, and hydrogen has been discharged in generator；
If jiggering has stopped, and hydrogen has been discharged in generator, judges whether that the sealing oil vacuum pump has stopped
Operation, and first smoke exhaust fan and the second smoke exhaust fan are out of service, and the first lubricating oil fuel feeding isolating door has closed；Such as
Fruit is no, sends the instruction of sealing oil vacuum pump out of service, and the finger of the first smoke exhaust fan out of service and the second smoke exhaust fan
Order, and close the instruction of the first lubricating oil fuel feeding isolating door；
If the sealing oil vacuum pump is out of service, and first smoke exhaust fan and the second smoke exhaust fan have stopped
Only run, and the first lubricating oil fuel feeding isolating door has closed, and judges whether the vaccum fuel tank oil level regulating valve, middle fuel level in tank
Regulating valve and fuel feeding adjust valve to have dropped out operation；Automatic running vaccum fuel tank oil level regulating valve, middle fuel tank are exited if not, sending
Oil level regulating valve and fuel feeding adjust the instruction of valve.
In one embodiment, described start-up and shut-down control method also includes：
Judge whether that the pressure of steam turbine lubricating oil main pipe is more than the 5th preset pressure value, and the sealing oil vacuum pump connects
The liquid level in separator connect is higher than default liquid level, if it is, judging whether the entrance electrically operated gate of the first primary seal oil pump
Opened with the entrance electrically operated gate and outlet electrically operated gate of outlet electrically operated gate and the second primary seal oil pump, and the Seal Oil recycles
The entrance electrically operated gate and outlet electrically operated gate of pump have been opened, and the second lubricating oil fuel feeding isolating door, the 3rd lubricating oil fuel feeding are isolated
Door has been opened, and the first lubricating oil fuel feeding isolating door has closed, and the entrance electrically operated gate of the first fuel feeding filter screen and outlet electricity
Dynamic door has been opened, and the entrance electrically operated gate of the second fuel feeding filter screen and outlet electrically operated gate have been closed, and the fuel feeding adjusts the entrance of valve
Electrically operated gate and outlet electrically operated gate have been opened, and the fuel feeding adjusts valve bypass electrically operated gate to close, and the entrance of the middle fuel tank is electronic
Door and outlet electrically operated gate have been opened, and the middle fuel tank bypass electrically operated gate has been opened, and first balance gate and the second balance gate
Open.
In one embodiment, first preset range, the second preset range and the 3rd preset range are respectively：50kPa
~70kPa, 250mm~300mm, 450mm~550mm.
In one embodiment, the fuel feeding adjust valve throw pressure difference it is automatic when setting value be 60kPa, the middle fuel level in tank
Setting value when regulating valve throws automatic is 300mm, and the setting value when vaccum fuel tank oil level regulating valve throws automatic is 500mm.
In one embodiment, first preset pressure value, the second preset pressure value, the 3rd preset pressure value are respectively
0.1Mpa, 0.85Mpa and -90kPa.
In one embodiment, the scheduled time is 10s.
In one embodiment, the 4th preset pressure value is 50kPa.
In one embodiment, the 5th preset pressure value is 0.15MPa.
In one embodiment, the default liquid level is 100mm.
The beneficial effects of the present invention are：Thermal power plant's single-flow seal oil of the present invention can be in thermal power plant's generator
Under single-flow seal oil full cut-off state, the automatic start of generator single-flow seal oil is realized；Generated electricity in thermal power plant
Under machine single-flow seal oil running status, being automatically stopped for generator single-flow seal oil is realized；And take into account people
To judge, it is possible to achieve the leapfrog operation of thermal power plant's generator single-flow seal oil programed logic, work as programme-control
Whether the condition of a certain step of logic is not implemented when causing step sequence not carry out, artificially Rule of judgment can be neglected and operate jump
Step acts, 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 required accompanying drawing used 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 single-flow seal oil；
Fig. 2A and Fig. 2 B are the start-up and shut-down control method stream of thermal power plant of embodiment of the present invention generator single-flow seal oil
Cheng Tu；
Fig. 3 is the start-up and shut-down control method flow of another embodiment of the present invention thermal power plant generator single-flow seal oil
Figure.
Drawing reference numeral：
The primary seal oil pump inlet electrically operated gate of 1 first primary seal oil pump inlet electrically operated gate 2 second
The primary seal fuel pump outlet electrically operated gate of 3 first primary seal fuel pump outlet electrically operated gate 4 second
The Seal Oil recirculation pump of 5 Seal Oil recirculation pump entrance electrically operated gate 6 exports electrically operated gate
The lubricating oil fuel feeding isolating door of 7 vaccum fuel tank oil level regulating valve 8 second
The fuel feeding filter screen entrance electrically operated gate of 9 the 3rd lubricating oil fuel feeding isolating door 10 second
The fuel feeding filter screen of 11 first fuel feeding filter screen entrance electrically operated gate 12 second exports electrically operated gate
The 13 first fuel feeding filter screens outlet fuel feeding of electrically operated gate 14 adjusts valve inlet electrically operated gate
15 fuel feeding adjust the fuel feeding of valve 16 to adjust valve outlet electrically operated gate
17 fuel feeding adjust the valve bypass smoke evacuation fans entrance electrically operated gate of electrically operated gate 18 first
The smoke evacuation fan outlet electrically operated gate of 19 second smoke evacuation fans entrance electrically operated gates 20 first
21 second smoke evacuation fan outlet electrically operated gate, 22 middle fuel-tank outlet electrically operated gate
23 middle 24 middle fuel tank of fuel level in tank regulating valve bypass electrically operated gates
The 25 middle Seal Oil vacuum pump inlet electrically operated gates of fuel tank inlet electrically operated gate 26
27 first sealing oil vacuum pump cooling water electrically operated gates 28 second seal oil vacuum pump cooling water electrically operated gate
The balance gate of 29 first balance gate 30 second
The lubricating oil fuel feeding non-return flap of 31 primary seal fuel pump outlet main pipe non-return flap 32 second
The 33 exchange sealing oil pump recycling lubricating oil fuel feeding isolating doors of pressure maintaining valve 34 first
35 first lubricating oil fuel feeding non-return flap, 36 middle tank drainback non-return flap
The primary seal oil pump of 37 manual blowdown door 38 second
The Seal Oil recirculation pump of 39 first primary seal oil pump 40
41 sealing oil vacuum pumps 42 seal oil vacuum pump filter screen
The fuel feeding filter screen of 43 Seal Oil vacuum cooler 44 first
The smoke exhaust fan of 45 second fuel feeding filter screen 46 second
The generator sealing ring of 47 first smoke exhaust fan 48
The air of 49 oil return enlarged slot 50 extracts groove out
The 51 middle vaccum fuel tanks of fuel tank 52
The pollution discharge pond of 53 separator 54
The exhaust opening of 55 exhaust outlet 56
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 describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of thermal power plant's generator single-flow seal oil, as shown in figure 1, the single current ring is close
Sealing oil system includes：Generator sealing ring 48, oil return enlarged slot 49, middle fuel tank 51, middle fuel level in tank regulating valve 23, air
Extract groove 50, vaccum fuel tank 52, sealing oil vacuum pump 41, the first primary seal oil pump 39, the second primary seal oil pump 38, exchange sealing out
Oil pump recycling pressure maintaining valve 33, vaccum fuel tank oil level regulating valve 7, Seal Oil recirculation pump 40, the first fuel feeding filter screen 44, second supply
Oil screen 45, fuel feeding adjust valve 15, fuel feeding to adjust valve bypass electrically operated gate 17, the first smoke exhaust fan 47, second row wind and smoke machine 46, separator
53rd, Seal Oil vacuum cooler 43 and a plurality of pipeline.
Oil return enlarged slot 49, air extract groove 50 out and connect the hydrogen side of generator sealing ring 48 and empty side by pipeline respectively.
Oil return enlarged slot 49 is extracted groove 50 out with air respectively by two-way pipeline and is connected, and is sequentially provided with middle oil on a pipeline wherein
Case 51 and middle fuel level in tank regulating valve 23, wherein among fuel tank 51 both ends be respectively equipped with middle fuel tank inlet electrically operated gate 25 and
Middle fuel-tank outlet electrically operated gate 22, a middle fuel tank bypass electrically operated gate 24 is provided with another pipeline.Oil return enlarged slot 49 according to
It is secondary to be connected by the second balance gate 30 and the first balance gate 29 with middle fuel tank 51.
First primary seal oil pump 39 and the second primary seal oil pump 38 are connected in vaccum fuel tank 52 in parallel and gone out with primary seal oil pump
On pipeline between mouth main pipe non-return flap 31, it is respectively arranged with entrance electrically operated gate 1 at the both ends of the first primary seal oil pump 39 and goes out
Mouth electrically operated gate 3.Likewise, entrance electrically operated gate 2 and outlet electrically operated gate 4 are also respectively equipped with the both ends of the second primary seal oil pump 38.
Exchange sealing oil pump recycling pressure maintaining valve 33 is arranged between vaccum fuel tank 52 and primary seal fuel pump outlet main pipe non-return flap 31
On pipeline.Seal Oil recirculation pump 40 is connected with vaccum fuel tank 52, and entrance is respectively equipped with the both ends of Seal Oil recirculation pump 40
Electrically operated gate 5 and outlet electrically operated gate 6.
In lubricating oil main pipe (main pipe i.e. on the direction of " lubricating oil comes ") and primary seal fuel pump outlet main pipe non-return flap 31
Output end between pipeline on be sequentially provided with the first lubricating oil fuel feeding isolating door 34, the first lubricating oil fuel feeding non-return flap 35,
Three lubricating oil fuel feeding isolating doors 9, the second lubricating oil fuel feeding non-return flap 32.In the first lubricating oil fuel feeding non-return flap 35 and middle fuel tank
Pipeline between bypass electrically operated gate 24 is provided with middle tank drainback non-return flap 36, and middle tank drainback non-return flap 36 is also set simultaneously
Between the middle lubricating oil fuel feeding non-return flap 35 of fuel level in tank regulating valve 23 and first.In the defeated of middle tank drainback non-return flap 36
Go out on end and the pipeline between the output end and vaccum fuel tank 52 of the first lubricating oil fuel feeding non-return flap 35 and be sequentially provided with the second lubrication
Oily fuel feeding isolating door 8 and vaccum fuel tank oil level regulating valve 7.
Vaccum fuel tank 52 connects by the entrance electrically operated gate 26 of sealing oil vacuum pump 41, sealing oil vacuum pump filter screen 42 successively
Oil vacuum pump 41 is sealed, the output end of sealing oil vacuum pump 41 connects separator 53 and Seal Oil vacuum cooler 43 respectively, close
Oil sealing vacuum cooler 43 is electronic by first sealing oil vacuum pump cooling water electrically operated gate the 27, second sealing oil vacuum pump cooling water
Door 28 is connected with cooling water system.The top of separator 53 is provided with exhaust outlet 55 and is used to discharge hydrogen, and bottom is provided with manual blowdown
Door 37, manual blowdown door 37 connect pollution discharge pond 54, and waste oil is discharged available for pollution discharge pond 54.
On output end to the pipeline between generator sealing ring 48 of primary seal fuel pump outlet main pipe non-return flap 31, successively
Valve 15 is adjusted provided with the first fuel feeding filter screen 44 and fuel feeding, entrance electrically operated gate 11 and outlet electricity are provided with the both ends of the first fuel feeding filter screen 44
Dynamic door 13, the both ends of valve 15 are adjusted also to be respectively equipped with entrance electrically operated gate 14 and outlet electrically operated gate 16 in fuel feeding.Second fuel feeding filter screen 45
It is connected in parallel with the first fuel feeding filter screen 44, and is also respectively equipped with entrance electrically operated gate 10 at the both ends of the second fuel feeding filter screen 45 and goes out
Mouth electrically operated gate 12.Fuel feeding adjusts the input of the entrance electrically operated gate 14 of one end connection fuel feeding tune valve 15 of valve bypass electrically operated gate 17, separately
One end connection fuel feeding adjusts the output end of the outlet electrically operated gate 16 of valve 15.
Air is extracted groove 50 out and is connected respectively with the first smoke exhaust fan 47, second row wind and smoke machine 46 by pipeline, in first row
The both ends of cigarette blower fan 47 are respectively equipped with entrance electrically operated gate 18 and outlet electrically operated gate 20, similarly, the two of second row wind and smoke machine 46
End is also respectively equipped with entrance electrically operated gate 19 and outlet electrically operated gate 21.The outlet electrically operated gate of above-mentioned two smoke exhaust fan by pipeline with
Exhaust opening 56 connects, available for discharging hydrogen.
As shown in figure 1, it is additionally provided with other necessary pipes in thermal power plant's generator single-flow seal oil of the present invention
Road, valve and related thermal technology's measuring point etc..
Using thermal power plant's generator single-flow seal oil provided in an embodiment of the present invention, the hydrogen in Seal Oil can be separated out
Gas simultaneously reclaims Seal Oil, there is provided the Seal Oil of enough pressure removes hydrogen in sealed electric generator, and can be in sealing oil pump failure
When by lubricating oil provide sealing function.In the present system, the effect of oil return enlarged slot is to reclaim the hydrogen side oil return of Seal Oil, and
Seal Oil dilatation in oil return enlarged slot is set to separate out hydrogen.The effect of middle fuel tank is so that the oil return from oil return enlarged slot is entered
One step dilatation separates out hydrogen, and the fuel tank sets an oil level automatic regulating valve to keep the oil level of middle fuel tank in half or so,
When hydrogen pressure drop is to below 50kPa, oil return can also be discharged by bypassing, the oil return of middle fuel tank by pressure in generator,
Drain into air and extract groove out.The effect that air extracts groove out is the empty side seal oil oil return of recovery, and receives middle fuel tank coming oil, all times
Oil is back to lubricating oil system, and air is extracted the undissolved gas separated out in groove out and extracted out by smoke exhaust fan and smoke exhaust fan.
Primary seal oil pump and primary seal oil pump function as oil pressure source, and itself and fuel feeding adjust valve to coordinate, there is provided enough pressure it is close
Hydrogen in sealed electric generator is removed in oil sealing, and fuel feeding adjusts valve to be used to adjust oil-hydrogen differential pressure.
In one embodiment, the Seal Oil oil return of the hydrogen side of generator sealing ring 48 is successively by oil return enlarged slot 49, centre
Fuel tank 51, air extract groove 50 out and enter grease-box, and the Seal Oil oil return of 48 empty side of generator sealing ring extracts groove out by air
Into grease-box.
In one embodiment, the Seal Oil in vaccum fuel tank 52 is all the way successively by the first primary seal oil pump 39 (or the
Two primary seal oil pumps 38), the first fuel feeding filter screen 44 (or second fuel feeding filter screen 45), fuel feeding adjust valve 15 or fuel feeding to adjust valve bypass electricity
Dynamic door 17 enters generator sealing ring 48, wherein, the first primary seal oil pump 39 and the second primary seal oil pump 38 can work simultaneously,
First fuel feeding filter screen 44 and the second fuel feeding filter screen 45 can also work simultaneously, i.e., the Seal Oil in vaccum fuel tank 52 all the way can be according to
It is secondary by the first primary seal oil pump 39 and the fuel feeding filter screen 44 of the second primary seal oil pump 38 → the first and the second fuel feeding filter screen 45 → supply
Oil adjusts valve 15 or fuel feeding to adjust valve bypass electrically operated gate 17, into generator sealing ring 48.Seal Oil another way in vaccum fuel tank 52
Constantly circulated into Seal Oil recirculation pump 40, the hydrogen separated out in vaccum fuel tank 52 is successively by sealing entering for oil vacuum pump 41
Mouth electrically operated gate 26, sealing oil vacuum pump filter screen 42 enter sealing oil vacuum pump 41.
When primary seal oil pump goes wrong, such as the first primary seal oil pump 39 and/or the second primary seal oil pump 38 exit
, will be close directly for the road direction generator of Seal Oil one by lubricating oil to ensure the hydrogen in sealed electric generator sealing ring 48 during operation
Seal ring provides oil sources, due to the road binders source limited pressure, it is necessary to can just make sealing oil pressure high rapid decline of hydrogen pressure in generator
In hydrogen pressure.The effect of Seal Oil recirculation pump 40 is constantly to circulate the oil return in vaccum fuel tank 52, and is sprayed by atomizer
Hydrogen in oil is further separated out, and is extracted out by sealing oil vacuum pump 41.When providing sealing by lubricating oil, in lubricating oil main pipe
Lubricating oil successively by the first lubricating oil fuel feeding isolating door 34, the first lubricating oil fuel feeding non-return flap 35, the 3rd lubricating oil fuel feeding every
Valve 15 is adjusted from door 9, the second lubricating oil fuel feeding non-return flap 32, the first fuel feeding filter screen 44 and/or the second fuel feeding filter screen 45, fuel feeding or is supplied
Oil adjusts valve bypass electrically operated gate 17 to enter generator sealing ring 48.
In one embodiment, it is additionally provided with thermal power plant's generator single-flow seal oil：Single-flow seal oil
Programed logic button A1, primary seal oil pump block push button A2, smoke exhaust fan block push button A3, manual confirmation jiggering have stopped
Button A4 and manual confirmation generator hydrogen have discharged button A5.
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 rapid interlocked startup, maintain system operation normal.These interlock devices include：Primary seal oil pump
38 and primary seal oil pump 39 interlocks, smoke exhaust fan 46 and smoke exhaust fan 47 interlock.
The embodiment of the present invention additionally provides a kind of start-up and shut-down control method of thermal power plant's generator single-flow seal oil, should
The executive agent of start-up and shut-down control method can be computer system etc..As shown in Figure 2 A and 2 B, the start-up and shut-down control method includes：
Step S101, judge whether that the 1. entrance electrically operated gate 1 of the first primary seal oil pump 39 and outlet electrically operated gate 3 and second are led
The entrance electrically operated gate 2 of sealing oil pump 38 and outlet electrically operated gate 4 have been opened, 2. and Seal Oil recirculation pump 40 entrance electrically operated gate 5
4. and the opened with outlet electrically operated gate 6,3. and the second lubricating oil fuel feeding isolating door 8, the 3rd lubricating oil fuel feeding isolating door 9 have been opened,
One lubricating oil fuel feeding isolating door 34 has been closed, and 5. and the entrance electrically operated gate 11 of the first fuel feeding filter screen 44 and outlet electrically operated gate 13 have been opened,
6. and the entrance electrically operated gate 10 of the second fuel feeding filter screen 45 and outlet electrically operated gate 12 have been closed, 7. and fuel feeding adjusts the entrance electrically operated gate of valve 15
14 and outlet electrically operated gate 16 opened, 8. and fuel feeding adjust valve bypass electrically operated gate 17 closed, 9. and middle fuel tank 51 entrance electrically operated gate
25 have been opened with outlet electrically operated gate 22, and 10. and middle fuel tank bypass electrically operated gate 24 has been opened,And first balance gate 29 and the second balance
Door 30 has been opened.If having a condition to be unsatisfactory in above-mentioned 11 conditions, step S102 is carried out, sends and opens the first primary seal
The entrance electrically operated gate 1 of oil pump 39 and the entrance electrically operated gate 2 of the outlet primary seal oil pump 38 of electrically operated gate 3 and second and outlet electrically operated gate 4
Instruction, and open the instruction of the entrance electrically operated gate 5 and outlet electrically operated gate 6 of Seal Oil recirculation pump 40, and open the second lubrication
The instruction of the oily lubricating oil fuel feeding isolating door 9 of fuel feeding isolating door 8 and the 3rd, and close the finger of the first lubricating oil fuel feeding isolating door 34
Order, and the instruction of the entrance electrically operated gate 11 and outlet electrically operated gate 13 of the first fuel feeding filter screen 44 is opened, and close the second fuel feeding filter screen
The instruction of 45 entrance electrically operated gate 10 and outlet electrically operated gate 12, and open fuel feeding and adjust the entrance electrically operated gate 14 of valve 15 and export electronic
The instruction of door 16；And close fuel feeding and adjust the instruction of valve bypass electrically operated gate 17, and open the He of entrance electrically operated gate 25 of middle fuel tank 51
The instruction of electrically operated gate 22 is exported, and opens the instruction of middle fuel tank bypass electrically operated gate 24, and opens the first balance gate 29 and second
The instruction of balance gate 30.If above-mentioned 11 conditions meet simultaneously, step S103 is carried out.
Step S103, judge whether that 1. the first lubricating oil fuel feeding isolating door 34 has been opened, 2. and oil-hydrogen pressure difference is default first
In the range of, 3. and middle fuel tank 51 oil level in the second preset range, 4. and vaccum fuel tank 52 oil level in the 3rd default model
In enclosing.If having a condition to be unsatisfactory in above-mentioned 4 conditions, step S104 is carried out, sends and opens the first lubricating oil fuel feeding
The instruction of isolating door 34, and fuel feeding tune valve 15 is thrown into pressure difference and automatically instructed, and middle fuel level in tank regulating valve 23 is thrown automatically
Instruction, and vaccum fuel tank oil level regulating valve 7 is thrown into automatic instruction.If above-mentioned 4 conditions are satisfied by, step is carried out
S105., can in generator after input lubricating oil is directly for Seal Oil all the way (i.e. the first lubricating oil fuel feeding isolating door 34 is opened)
To carry out being flushed with hydrogen work.
In one embodiment, the first above-mentioned preset range, the second preset range and the 3rd preset range are respectively：50kPa
~70kPa, 250mm~300mm, 450mm~550mm.
In one embodiment, fuel feeding adjust valve 15 throw pressure difference it is automatic when setting value be 60kPa, middle fuel level in tank regulating valve 23
Setting value when throwing automatic is 300mm, and setting value when vaccum fuel tank oil level regulating valve 7 throws automatic is 500mm.
Step S105, the outlet electrically operated gate 20 of 1. first row wind and smoke machine 47 and the outlet of second row wind and smoke machine 46 are judged whether
Electrically operated gate 21 has been opened, 2. and the entrance electrically operated gate 18 of first row wind and smoke machine 47 and the entrance electrically operated gate 19 of second row wind and smoke machine 46
Close.If any one in above-mentioned two condition is unsatisfactory for, step S16 is carried out, sends and opens first row wind and smoke machine outlet electricity
The instruction of dynamic door 20 and second row wind and smoke machine outlet electrically operated gate 21, and close first row wind flue gas turbine inlet electrically operated gate 18 and second row
The instruction of wind flue gas turbine inlet electrically operated gate 19.If first row wind and smoke machine exports electrically operated gate 20 and second row wind and smoke machine outlet electrically operated gate
21 have been opened, and first row wind flue gas turbine inlet electrically operated gate 18 and second row wind flue gas turbine inlet electrically operated gate 19 have been closed, then are walked
Rapid S107.
Step S107, judge whether that the first smoke exhaust fan 47 has been turned on, and the entrance electrically operated gate 18 of the first smoke exhaust fan 47
Open.If the first smoke exhaust fan 47 is not actuated or its entrance electrically operated gate 18 is not opened, into step S108, startup is sent
The instruction of one smoke exhaust fan 47, and open the instruction of the first smoke evacuation fans entrance electrically operated gate 18.If the first smoke exhaust fan 47
Have been turned on, and the entrance electrically operated gate 18 of the first smoke exhaust fan 47 has been opened, then carries out step S109.Start smoke exhaust fan purpose be
The air that empty side seal oil and lubricating oil return contain is extracted out.
Step S109, judge whether smoke exhaust fan interlocking has put into.If smoke exhaust fan interlocking is not put into, throwing row is sent
The instruction (step S110) of cigarette interlock of fan.If smoke exhaust fan interlocking has been put into, step S111 is carried out.
Step S111, judge whether that Seal Oil recirculation pump 40 has been turned on, and the outlet pressure of Seal Oil recirculation pump 40
More than the first preset pressure value.If Seal Oil recirculation pump 40 is not actuated or the outlet pressure of Seal Oil recirculation pump 40 is small
In the first preset pressure value, then instruction (the step 112) for starting Seal Oil recirculation pump is sent.If Seal Oil recirculation pump 40
Have been turned on and the outlet pressure of Seal Oil recirculation pump 40 is more than the first preset pressure value, then carry out step S113.Start sealing
The purpose of oily recirculation pump 40 is constantly to circulate oil return in vaccum fuel tank 52, and it is sprayed from atomizer, is separated out in oil
Contained hydrogen.
In one embodiment, above-mentioned first scheduled pressure value is 0.1MPa, and the present invention is not limited.
Step S113, judge whether that the first primary seal oil pump 39 has been turned on, and the pressure of sealing oil pump outlet main pipe is more than
Second preset pressure value.If above-mentioned two condition has one not meet, the instruction for starting the first primary seal oil pump 39 is sent
(step S114).If the first primary seal oil pump 39 has been turned on, and the pressure of sealing oil pump outlet main pipe is pre- more than described second
If pressure value, then step S115 is carried out.After starting primary seal oil pump herein, it can start to lift hydrogen pressure in generator.
In one embodiment, above-mentioned second scheduled pressure value is 0.85MPa, and the present invention is not limited.
Step S115, judge whether the interlocking of primary seal oil pump has put into.If the interlocking of primary seal oil pump is not put into, send
Put into the instruction (step S116) of primary seal oil pump interlocking.If the interlocking of primary seal oil pump has been put into, step S117 is carried out.
Step S117, judge whether that the entrance electrically operated gate 26 for 1. sealing oil vacuum pump 41 has been closed, 2. and sealing oil vacuum pump
The 41 cooling water electrically operated gates 27 connected, cooling water electrically operated gate 28 have been opened.If above-mentioned two condition has one to be unsatisfactory for,
The instruction for closing Seal Oil vacuum pump inlet electrically operated gate 26 is sent, and opens two cooling waters being connected with sealing oil vacuum pump 41
The instruction (step S118) of electrically operated gate.If the entrance electrically operated gate 26 of sealing oil vacuum pump 41 has been closed, and cooling water electrically operated gate 27
And cooling water water electrically operated gate 28 has been opened, then step S119 is carried out.
Step S119, judge to seal whether oil vacuum pump 41 has been turned on and run the scheduled time.If seal oil vacuum pump
41 is not actuated, or has been turned on but run time is not up to the scheduled time, then sends the instruction (step for starting sealing oil vacuum pump
S120).If sealing oil vacuum pump 41 has been turned on and runs the above-mentioned scheduled time, step S121 is carried out.It is true to start Seal Oil
The purpose of empty pump 41 is to extract the hydrogen separated out in vaccum fuel tank 52 out.
In one embodiment, the above-mentioned scheduled time is 10s, and the present invention is not limited.
Whether the entrance electrically operated gate 26 for step S121, judging to seal oil vacuum pump 41 has been opened.If seal oil vacuum pump 41
Entrance electrically operated gate 26 do not open, then send the instruction (step S122) for opening Seal Oil vacuum pump inlet electrically operated gate 26.If
Open, then carry out step S123.
Step S123, judge whether the pressure in vaccum fuel tank 52 is less than the 3rd preset pressure value.If vaccum fuel tank 52
Interior pressure is less than the 3rd preset pressure value, carries out step S124.
In one embodiment, the 3rd above-mentioned preset pressure value is -90kPa, and the present invention is not limited.
Step S124, judge whether the hydrogen pressure in generator is more than the 4th preset pressure value.If the hydrogen pressure in generator
Whether it is more than the 4th preset pressure value, carries out step S125.
In one embodiment, the 4th above-mentioned preset pressure value is 50kPa, and the present invention is not limited.
Step S125, whether fuel tank bypass electrically operated gate 24 has closed among judging.If middle fuel tank bypass electrically operated gate 24 is not
Close, send the instruction (step S126) of fuel tank bypass electrically operated gate 24 among closing.The original of fuel tank bypass electrically operated gate 24 among closing
Because being with the rising of hydrogen pressure, the oil level in middle fuel tank 51 constantly declines, it is necessary to close bypass electrically operated gate, passes through middle fuel tank
Oil level regulating valve 23 adjusts oil level.
Start-up and shut-down control method shown in Fig. 2A and Fig. 2 B is used to control opening for thermal power plant's generator single-flow seal oil
It is dynamic, therefore Fig. 2A and Fig. 2 B start-up and shut-down control method is properly termed as the starting step of thermal power plant's generator single-flow seal oil.
In one embodiment, starting the enabled condition of step sequence is：1. steam turbine lubricating oil main-piping pressure is more than the 5th default pressure
Force value；2. the liquid level in the separator 53 that sealing oil vacuum pump 41 is connected is more than default liquid level.Normally, the 5th preset pressure
It is worth for 0.15Mpa, it is 100mm to preset liquid level.That is, before step S101 is carried out, steam turbine lubricating oil main pipe need to be prejudged
Whether pressure is more than 0.15Mpa, and whether the liquid level sealed in the separator 53 that oil vacuum pump 41 is connected is higher than 100mm,
In the case that the two conditions all meet, just allow to start.
The embodiment of the present invention provides a kind of start-up and shut-down control method of thermal power plant's generator single-flow seal oil, the start and stop
The executive agent of control method can be computer system etc..As shown in figure 3, the start-up and shut-down control method includes：
Step S201, judge whether the hydrogen pressure in generator is less than the 4th preset pressure value (i.e. 50kPa).If generator
Interior hydrogen pressure is less than 50kPa, then carries out step S202.It is that judge whether can to judge purpose of the pressure of hydrogen in generator less than 50kPa
To stop primary seal oil pump, directly come by lubricating oil for Seal Oil and seal hydrogen in generator.
Step S202, whether fuel tank bypass electrically operated gate 17 has been opened among judging.If middle fuel tank bypass electrically operated gate 24 is not
Open, send the instruction (step S203) of fuel tank bypass electrically operated gate 24 among opening.If middle fuel tank bypass electrically operated gate 24 has been opened,
Carry out step S204.
Step S204, judge whether the interlocking of primary seal oil pump has dropped out.If the interlocking of primary seal oil pump is not released, send and move back
Go out the instruction (step S205) of primary seal oil pump interlocking.If the interlocking of primary seal oil pump has dropped out, step S206 is carried out.
Step S206, judge whether that 1. the first primary seal oil pump 39 and the second primary seal oil pump 38 are out of service, 2. and
Seal Oil recirculation pump 40 is out of service.If above-mentioned condition has one to be unsatisfactory for or be all unsatisfactory for, send out of service
The instruction of first primary seal oil pump 39 and the second primary seal oil pump 38, and the instruction of Seal Oil recirculation pump 40 out of service
(step S207).If above-mentioned two condition meets simultaneously, step S208 is carried out.
Step S208, judge whether that jiggering has stopped, and hydrogen has been discharged in generator.If jiggering has stopped, and
Hydrogen has been discharged in generator, carries out step S209.Only meet the two conditions simultaneously, cut-out lubrication in next step could be carried out
Oil directly supplies the operation of Seal Oil.
Step S209, judge whether 1. to seal oil vacuum pump 41 it is out of service, 2. and the first smoke exhaust fan 47 and second
Smoke exhaust fan 46 is out of service, and 3. and the first lubricating oil fuel feeding isolating door 34 has closed.If there is one in above three condition
It is unsatisfactory for, sends the instruction of sealing oil vacuum pump 41 out of service, and the Smoke of the first smoke exhaust fan out of service 47 and second
The instruction of machine 46, and close the instruction (step S210) of the first lubricating oil fuel feeding isolating door 34.If seal oil vacuum pump 41
It is out of service, and the first smoke exhaust fan 47 and the second smoke exhaust fan 46 are out of service, and the first lubricating oil fuel feeding isolating door
34 have closed, then carry out step S211.
Step S211, judge whether that vaccum fuel tank oil level regulating valve 7, middle fuel level in tank regulating valve 23 and fuel feeding adjust valve 15
Have dropped out operation.As long as vaccum fuel tank oil level regulating valve 7, middle fuel level in tank regulating valve 23 and fuel feeding, which are adjusted in valve 15, has one not
It is out of service, send and exit automatic running vaccum fuel tank oil level regulating valve 7, middle fuel level in tank regulating valve 23 and fuel feeding tune valve 15
Instruction (step S212).
Stopping of the start-up and shut-down control method for controlling thermal power plant's generator single-flow seal oil shown in Fig. 3, therefore Fig. 3
Start-up and shut-down control method be properly termed as the stopping step of thermal power plant's generator single-flow seal oil.
Fig. 2A, Fig. 2 B and Fig. 3 start-up and shut-down control method are moderate heat power generator single current ring Seal Oil of the embodiment of the present invention
The programed logic of system.Following functions can be realized using the programed logic：In thermal power plant, generator single current ring is close
Under sealing oil system full cut-off state, the automatic start of single-flow seal oil is realized；In thermal power plant's generator single current ring Seal Oil
Under system running state, being automatically stopped for single-flow seal oil is realized；When thermal power plant's generator single-flow seal oil
When startup program is run to a certain step, condition is unsatisfactory for, if artificially judging, the condition can ignore that, can be carried out leapfrog manually and be moved
Make the operation of continuation startup program, finished until single-flow seal oil starts.
Each step in start-up and shut-down control method shown in Fig. 2A, Fig. 2 B and Fig. 3, first judges whether feedback receives, if
Receive and then continue in next step；If do not received, instruction is sent, waits to be feedback receive.When not receiving due feedback signal,
Programed logic can rest on the step, wait operation.Power plant operations staff can find current operation step sequence and not receive
Feedback signal, artificially judge whether unreceived feedback signal influences continuing executing with for program programed logic.If this is anti-
Feedback signal does not influence continuing for present procedure control logic, and operations staff can operate leapfrog action continuation programme-control and patrol
The execution collected；If the feedback signal influences present procedure control logic and continued, operations staff can be according to finding
Each unsatisfied feedback signal, targetedly goes investigation problem, until receiving the feedback signal, continues executing with program control
Logic processed.
, can be in thermal power plant's generator single-flow seal 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 single-flow seal oil is realized；In generator single current ring Seal Oil system of thermal power plant
Under running status of uniting, being automatically stopped for generator single-flow seal 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 use 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 use the computer for wherein including computer usable program code in one or more
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 describe.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 processors 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 produces, 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 counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as 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 understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (13)
- A kind of 1. thermal power plant's generator single-flow seal oil, it is characterised in that thermal power plant's generator single current ring sealing Oil system includes：Generator sealing ring, oil return enlarged slot, middle fuel tank, middle fuel level in tank regulating valve, air extract groove, true out It is empty fuel tank, sealing oil vacuum pump, the first primary seal oil pump, the second primary seal oil pump, exchange sealing oil pump recycling pressure maintaining valve, true Empty fuel level in tank regulating valve, Seal Oil recirculation pump, the first fuel feeding filter screen, the second fuel feeding filter screen, fuel feeding adjust valve, fuel feeding to adjust by valve Road electrically operated gate, the first smoke exhaust fan, second row wind and smoke machine, separator, Seal Oil vacuum cooler and a plurality of pipeline；The oil return enlarged slot, air extract groove out and connect the hydrogen side of the generator sealing ring and empty side by pipeline respectively；Institute State oil return enlarged slot to be connected with air extraction groove respectively by two-way pipeline, be sequentially provided with wherein on a pipeline described Middle fuel tank and middle fuel level in tank regulating valve, wherein the both ends of the middle oil case are respectively equipped with entrance electrically operated gate and outlet electricity Dynamic door, a middle fuel tank bypass electrically operated gate is provided with another pipeline；The oil return enlarged slot passes sequentially through the first balance gate And second balance gate and the middle fuel tank connect；The first primary seal oil pump and the second primary seal oil pump are connected in the vaccum fuel tank and primary seal fuel pump outlet in parallel On pipeline between main pipe non-return flap, set respectively at the both ends at the both ends of the first primary seal oil pump and the second primary seal oil pump There are entrance electrically operated gate and outlet electrically operated gate；The exchange sealing oil pump recycling pressure maintaining valve is arranged at the vaccum fuel tank and master is close On pipeline between oil sealing pump discharge main pipe non-return flap；The Seal Oil recirculation pump is connected with the vaccum fuel tank, described The both ends of Seal Oil recirculation pump are respectively equipped with entrance electrically operated gate and outlet electrically operated gate；Is sequentially provided with pipeline between lubricating oil main pipe and the output end of the primary seal fuel pump outlet main pipe non-return flap One lubricating oil fuel feeding isolating door, the first lubricating oil fuel feeding non-return flap, the 3rd lubricating oil fuel feeding isolating door, the second lubricating oil fuel feeding are inverse Only door；Middle oil is provided with pipeline between the first lubricating oil fuel feeding non-return flap and the middle fuel tank bypass electrically operated gate Tank drainback non-return flap；Output end and the output of the first lubricating oil fuel feeding non-return flap in the middle tank drainback non-return flap The second lubricating oil fuel feeding isolating door and the vaccum fuel tank oil level regulating valve are sequentially provided with pipeline between end and vaccum fuel tank；The entrance electrically operated gate of sealed oil vacuum pump, sealing oil vacuum pump filter screen connect the Seal Oil to the vaccum fuel tank successively Vavuum pump, the output end of the sealing oil vacuum pump connect the separator and Seal Oil vacuum cooler respectively；The sealing Oily vacuum cooler is connected by two cooling water electrically operated gates with cooling water system；On output end to the pipeline between the generator sealing ring of the primary seal fuel pump outlet main pipe non-return flap, successively Valve is adjusted provided with the first fuel feeding filter screen and fuel feeding, adjusts the both ends of valve to set respectively at the both ends of the first fuel feeding filter screen and fuel feeding There are entrance electrically operated gate and outlet electrically operated gate；The second fuel feeding filter screen is connected in parallel with the first fuel feeding filter screen, and in institute The both ends for stating the second fuel feeding filter screen are respectively equipped with entrance electrically operated gate and outlet electrically operated gate；The fuel feeding adjusts the one of valve bypass electrically operated gate End connects the input that the fuel feeding adjusts the entrance electrically operated gate of valve, and the other end connects the defeated of the outlet electrically operated gate of the fuel feeding tune valve Go out end；The air is taken out to be connected respectively out of the groove and through pipeline with first smoke exhaust fan, second row wind and smoke machine, and described First smoke exhaust fan, the both ends of second row wind and smoke machine are respectively equipped with entrance electrically operated gate and outlet electrically operated gate；The Seal Oil oil return of generator sealing ring hydrogen side is extracted groove out by the oil return enlarged slot, middle fuel tank, air successively and entered Enter grease-box；The Seal Oil oil return of generator sealing annular space side extracts groove out by the air and enters grease-box；Seal Oil in the vaccum fuel tank all the way successively by the first primary seal oil pump and/or the second primary seal oil pump, First fuel feeding filter screen and/or the second fuel feeding filter screen, fuel feeding adjust valve or fuel feeding to adjust valve to bypass electrically operated gate into generator sealing Ring；Seal Oil another way in the vaccum fuel tank constantly circulates into the Seal Oil recirculation pump；In the vaccum fuel tank The hydrogen of precipitation is true into the Seal Oil by the Seal Oil vacuum pump inlet electrically operated gate, sealing oil vacuum pump filter screen successively Empty pump.
- 2. thermal power plant's generator single-flow seal oil according to claim 1, it is characterised in that as the described first master When sealing oil pump and/or the second primary seal oil pump out of service, the lubricating oil in lubricating oil main pipe is successively by the described first profit Lubricating oil fuel feeding isolating door, the first lubricating oil fuel feeding non-return flap, the 3rd lubricating oil fuel feeding isolating door, the second lubricating oil fuel feeding check Door, the first fuel feeding filter screen and/or the second fuel feeding filter screen, fuel feeding adjust valve or fuel feeding to adjust valve bypass electrically operated gate to enter the secret that generates electricity Seal ring.
- 3. thermal power plant's generator single-flow seal oil according to claim 1, it is characterised in that the thermal power plant generates electricity It is additionally provided with machine single-flow seal oil：Single-flow seal oil programed logic button, the interlocking of primary seal oil pump Stop button and manual confirmation generator hydrogen have discharged button for button, smoke exhaust fan block push button, manual confirmation jiggering.
- A kind of 4. start-up and shut-down control method of thermal power plant's generator single-flow seal oil, it is characterised in that thermal power plant's hair The start-up and shut-down control method of motor single-flow seal oil includes：Judge whether that entrance electrically operated gate and the entrance of outlet electrically operated gate and the second primary seal oil pump of the first primary seal oil pump are electronic Door and outlet electrically operated gate have been opened, and the entrance electrically operated gate of Seal Oil recirculation pump and outlet electrically operated gate have been opened, and the second lubrication Oily fuel feeding isolating door, the 3rd lubricating oil fuel feeding isolating door have been opened, and the first lubricating oil fuel feeding isolating door has closed, and the first fuel feeding is filtered The entrance electrically operated gate and outlet electrically operated gate of net have been opened, and the entrance electrically operated gate of the second fuel feeding filter screen and outlet electrically operated gate have been closed, and Fuel feeding adjusts the entrance electrically operated gate of valve and outlet electrically operated gate to open, and fuel feeding adjusts valve bypass electrically operated gate to close, and middle fuel tank enters Mouth electrically operated gate and outlet electrically operated gate have been opened, and middle fuel tank bypass electrically operated gate has been opened, and the first balance gate and the second balance gate are Open；If it is not, then send the entrance electrically operated gate for opening the first primary seal oil pump and outlet electrically operated gate and the second primary seal oil The instruction of the entrance electrically operated gate and outlet electrically operated gate of pump, and open the entrance electrically operated gate and outlet electricity of the Seal Oil recirculation pump The instruction of dynamic door, and the instruction of the second lubricating oil fuel feeding isolating door and the 3rd lubricating oil fuel feeding isolating door is opened, and close first The instruction of lubricating oil fuel feeding isolating door, and the instruction of the entrance electrically operated gate and outlet electrically operated gate of the first fuel feeding filter screen is opened, And the instruction of the entrance electrically operated gate and outlet electrically operated gate of the second fuel feeding filter screen is closed, and open the entrance that the fuel feeding adjusts valve The instruction of electrically operated gate and outlet electrically operated gate；And close the fuel feeding and adjust the instruction of valve bypass electrically operated gate, and open the middle oil The instruction of the entrance electrically operated gate of case and outlet electrically operated gate, and among opening fuel tank bypass electrically operated gate instruction, and open described the The instruction of one balance gate and the second balance gate；If it is, judge whether that the first lubricating oil fuel feeding isolating door has been opened, and oil-hydrogen pressure difference is in the first preset range, And the oil level of the middle fuel tank is in the second preset range, and the oil level of vaccum fuel tank is in the 3rd preset range；If not, The instruction for opening the first lubricating oil fuel feeding isolating door is sent, and adjusts valve to throw pressure difference the fuel feeding and automatically instructs, and will Middle fuel level in tank regulating valve throws automatically instruction, and vaccum fuel tank oil level regulating valve is thrown into automatically instruction；If the first lubricating oil fuel feeding isolating door has been opened, and oil-hydrogen pressure difference is in first preset range, and it is described in Between fuel tank oil level in second preset range, and the oil level of the vaccum fuel tank is sentenced in the 3rd preset range Disconnected whether the outlet electrically operated gate of first row wind and smoke machine and the outlet electrically operated gate of second row wind and smoke machine have been opened, and the first row wind and smoke The entrance electrically operated gate of machine and the entrance electrically operated gate of second row wind and smoke machine have been closed；The outlet of first row wind and smoke machine is opened if not, sending The instruction of electrically operated gate and second row wind and smoke machine outlet electrically operated gate, and close first row wind flue gas turbine inlet electrically operated gate and second row wind and smoke The instruction of machine entrance electrically operated gate；If the outlet electrically operated gate of the first row wind and smoke machine and the outlet electrically operated gate of second row wind and smoke machine have been opened, and described first The entrance electrically operated gate of air draft cigarette machine and the entrance electrically operated gate of second row wind and smoke machine have been closed, and judge whether that the first smoke exhaust fan has opened It is dynamic, and the entrance electrically operated gate of first smoke exhaust fan has been opened；If it is not, then send the finger for starting first smoke exhaust fan Order, and open the instruction of the first smoke evacuation fans entrance electrically operated gate；If first smoke exhaust fan has been turned on, and the entrance electrically operated gate of first smoke exhaust fan has been opened, and judges Smoke Whether machine interlocking has put into；If not, send the instruction for throwing smoke exhaust fan interlocking；If smoke exhaust fan interlocking has been put into, judge whether that Seal Oil recirculation pump has been turned on, and the Seal Oil recirculation pump Outlet pressure be more than the first preset pressure value；If not, send the instruction for starting Seal Oil recirculation pump；If the Seal Oil recirculation pump has been turned on, judge whether that the first primary seal oil pump has been turned on, and sealing oil pump exports The pressure of main pipe is more than the second preset pressure value；If not, send the instruction for starting the first primary seal oil pump；If the first primary seal oil pump has been turned on, and the pressure of sealing oil pump outlet main pipe is more than described second and preset Pressure value, judges whether the interlocking of primary seal oil pump has put into；If not, send the instruction of input primary seal oil pump interlocking；If the interlocking of primary seal oil pump has been put into, the entrance electrically operated gate for judging whether to seal oil vacuum pump has been closed, and the sealing Two cooling water electrically operated gates that oil vacuum pump is connected have been opened；If not, it is electronic to send the closing Seal Oil vacuum pump inlet The instruction of door, and open the instruction for two cooling water electrically operated gates being connected with the sealing oil vacuum pump；If the entrance electrically operated gate of the sealing oil vacuum pump has been closed, and described two cooling water electrically operated gates have been opened, and judge institute State whether sealing oil vacuum pump has been turned on and run the scheduled time；If not, send the instruction for starting sealing oil vacuum pump；If the sealing oil vacuum pump has been turned on and runs the scheduled time, the entrance electricity of the sealing oil vacuum pump is judged Whether dynamic door has been opened；If not, send the instruction for opening Seal Oil vacuum pump inlet electrically operated gate；If the entrance electrically operated gate of the sealing oil vacuum pump has been opened, judge whether the pressure in the vaccum fuel tank is less than the 3rd Preset pressure value；If the pressure in the vaccum fuel tank is less than the 3rd preset pressure value, judge whether the hydrogen pressure in generator is more than the 4th Preset pressure value；If the hydrogen pressure in the generator is more than the 4th preset pressure value, judge whether middle fuel tank bypass electrically operated gate has closed； If not, send the instruction for closing middle fuel tank bypass electrically operated gate.
- 5. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4, its feature exist In described start-up and shut-down control method also includes：Judge whether the hydrogen pressure in generator is less than the 4th preset pressure value；If the hydrogen pressure in generator is less than the 4th preset pressure value, whether the middle fuel tank bypass electrically operated gate is judged Open；If not, send the instruction for opening middle fuel tank bypass electrically operated gate；If the middle fuel tank bypass electrically operated gate has been opened, judge whether the interlocking of primary seal oil pump has dropped out；Moved back if not, sending Go out the instruction of primary seal oil pump interlocking；If the interlocking of primary seal oil pump has dropped out, judge whether that the first primary seal oil pump and the second primary seal oil pump have stopped Operation, and the Seal Oil recirculation pump is out of service；If not, send the first primary seal oil pump out of service and the second master The instruction of sealing oil pump, and the instruction of the Seal Oil recirculation pump out of service；If the first primary seal oil pump and the second primary seal oil pump are out of service, and the Seal Oil recirculation pump has stopped Only run, judge whether that jiggering has stopped, and hydrogen has been discharged in generator；If jiggering has stopped, and hydrogen has been discharged in generator, judges whether that the sealing oil vacuum pump is out of service, And first smoke exhaust fan and the second smoke exhaust fan are out of service, and the first lubricating oil fuel feeding isolating door has closed；If not, The instruction of sealing oil vacuum pump out of service, and the instruction of the first smoke exhaust fan out of service and the second smoke exhaust fan are sent, and Close the instruction of the first lubricating oil fuel feeding isolating door；If the sealing oil vacuum pump is out of service, and first smoke exhaust fan and the second smoke exhaust fan have stopped transporting OK, and the first lubricating oil fuel feeding isolating door has closed, and judges whether the vaccum fuel tank oil level regulating valve, the regulation of middle fuel level in tank Valve and fuel feeding adjust valve to have dropped out operation；Automatic running vaccum fuel tank oil level regulating valve, middle fuel level in tank are exited if not, sending Regulating valve and fuel feeding adjust the instruction of valve.
- 6. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4, its feature exist In described start-up and shut-down control method also includes：Judge whether that the pressure of steam turbine lubricating oil main pipe is more than the 5th preset pressure value, and the sealing oil vacuum pump is connected Liquid level in separator is higher than default liquid level, if it is, judging whether the entrance electrically operated gate of the first primary seal oil pump and going out The entrance electrically operated gate and outlet electrically operated gate of mouth electrically operated gate and the second primary seal oil pump have been opened, and the Seal Oil recirculation pump Entrance electrically operated gate and outlet electrically operated gate have been opened, and the second lubricating oil fuel feeding isolating door, the 3rd lubricating oil fuel feeding isolating door are Open, and the first lubricating oil fuel feeding isolating door has closed, and the entrance electrically operated gate of the first fuel feeding filter screen and outlet electrically operated gate It has been opened that, and the entrance electrically operated gate of the second fuel feeding filter screen and outlet electrically operated gate have been closed, and the fuel feeding adjusts the entrance of valve electronic Door and outlet electrically operated gate opened, and the fuel feeding adjust valve bypass electrically operated gate closed, and the entrance electrically operated gate of the middle fuel tank and Outlet electrically operated gate has been opened, and the middle fuel tank bypass electrically operated gate has been opened, and first balance gate and the second balance gate have been opened.
- 7. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4, its feature exist In first preset range, the second preset range and the 3rd preset range are respectively：50kPa~70kPa, 250mm~ 300mm, 450mm~550mm.
- 8. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4, its feature exist In the setting value when fuel feeding adjusts valve throwing pressure difference automatic is 60kPa, setting when the middle fuel level in tank regulating valve throws automatic Definite value is 300mm, and the setting value when vaccum fuel tank oil level regulating valve throws automatic is 500mm.
- 9. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4, its feature exist In, first preset pressure value, the second preset pressure value, the 3rd preset pressure value be respectively 0.1Mpa, 0.85Mpa and- 90kPa。
- 10. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4, its feature exist In the scheduled time is 10s.
- 11. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 4 or 5, it is special Sign is that the 4th preset pressure value is 50kPa.
- 12. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 6, its feature exist In the 5th preset pressure value is 0.15MPa.
- 13. the start-up and shut-down control method of thermal power plant's generator single-flow seal oil according to claim 6, its feature exist In the default liquid level is 100mm.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2309155A1 (en) * | 2009-10-08 | 2011-04-13 | Alstom Technology Ltd | Sealing system of a sealed electric generator |
| CN204004431U (en) * | 2014-07-25 | 2014-12-10 | 华北电力科学研究院(西安)有限公司 | A kind of thermal power plant sealing oil system |
| CN205842177U (en) * | 2016-08-03 | 2016-12-28 | 华北电力科学研究院有限责任公司 | Thermal power plant's electromotor single-flow seal oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5860696B2 (en) * | 2011-01-05 | 2016-02-16 | ゼネラル・エレクトリック・カンパニイ | Detection of generator seal leaks and seal oil contamination |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2309155A1 (en) * | 2009-10-08 | 2011-04-13 | Alstom Technology Ltd | Sealing system of a sealed electric generator |
| CN204004431U (en) * | 2014-07-25 | 2014-12-10 | 华北电力科学研究院(西安)有限公司 | A kind of thermal power plant sealing oil system |
| CN205842177U (en) * | 2016-08-03 | 2016-12-28 | 华北电力科学研究院有限责任公司 | Thermal power plant's electromotor single-flow seal oil |
Non-Patent Citations (1)
| Title |
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| 1036MW汽轮发电机密封油系统运行方式分析;谷伟等;《发电设备》;20120731;第26卷(第4期);全文 * |
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