CN106237684A - A kind of thermal power plant's high pressure fireresistant oil system and on off control method thereof - Google Patents
A kind of thermal power plant's high pressure fireresistant oil system and on off control method thereof Download PDFInfo
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- CN106237684A CN106237684A CN201610860387.7A CN201610860387A CN106237684A CN 106237684 A CN106237684 A CN 106237684A CN 201610860387 A CN201610860387 A CN 201610860387A CN 106237684 A CN106237684 A CN 106237684A
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- fire resistant
- electrically operated
- oil
- operated gate
- resistant oil
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 484
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000001172 regenerating effect Effects 0.000 claims abstract description 64
- 239000002828 fuel tank Substances 0.000 claims abstract description 63
- 239000000446 fuel Substances 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 claims description 498
- 239000000295 fuel oil Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000005619 thermoelectricity Effects 0.000 claims 3
- 238000000746 purification Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a kind of thermal power plant's high pressure fireresistant oil system and on off control method thereof, this system includes: fire-resistant fuel tank, first fire resistant oil pump, second fire resistant oil pump, first fire resistant oil recirculation pump, second fire resistant oil recirculation pump, first regenerating unit, second regenerating unit, first cooler, second cooler, electric heater, high pressure accumulator, first fire resistant oil is for oil screen, second fire resistant oil is for oil screen, fire resistant oil pump recirculation pressure maintaining valve, regenerating unit entrance mother's pipe Electrically operated gate, cooler entrance mother's pipe Electrically operated gate, high pressure accumulator entrance Electrically operated gate and fire resistant oil fuel feeding Electrically operated gate.The present invention can be under high pressure fireresistant oil system full cut-off state, it is achieved the automatic startup of high pressure fireresistant oil system；Under high pressure fireresistant oil system running state, it is achieved being automatically stopped of high pressure fireresistant oil system；Take into account artificial judgement, it is achieved this system program controls the leapfrog of logic and runs.
Description
Technical field
The present invention is about thermal power plant's high pressure fireresistant oil technology, especially with regard to a kind of thermal power plant's high pressure fireresistant oil system and
Its on off control method.
Background technology
The major function of thermal power plant's high pressure fireresistant oil system is to steam turbine and the electricity of steam feed pump driving steam turbine
Hydraulic regulating system provides power oil.Fire resistant oil pressure is higher, fire resistant oil pump, after boosting, enter each through servo valve or electromagnetic valve
Individual servomotor piston chamber, is instructed by servo valve and electromagnetic valve, controls servomotor stroke, i.e. control the aperture of valve.But,
Existing thermal power plant high pressure fireresistant oil system is under full cut-off state, it is impossible to realize the automatic startup of high pressure fireresistant oil system；Also without
Method is under high pressure fireresistant oil system running state, it is achieved being automatically stopped of high pressure fireresistant oil system；Further, when high pressure fireresistant oil system
When system startup program is carried out to a certain step, if this step sequence condition is unsatisfactory for, it is impossible to make startup program proceed.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of thermal power plant's high pressure fireresistant oil system and on off control side thereof
Method.
One aspect of the present invention provides a kind of thermal power plant high pressure fireresistant oil system, described thermal power plant high pressure fireresistant oil system bag
Include: fire-resistant fuel tank, the first fire resistant oil pump, the second fire resistant oil pump, the first fire resistant oil recirculation pump, the second fire resistant oil recirculation pump,
First regenerating unit, the second regenerating unit, the first cooler, the second cooler, electric heater, high pressure accumulator, the first fire-resistant
Oil for oil screen, the second fire resistant oil for oil screen, fire resistant oil pump recirculation pressure maintaining valve, regenerating unit entrance mother's pipe Electrically operated gate, cold
But device entrance mother pipe Electrically operated gate, high pressure accumulator entrance Electrically operated gate and fire resistant oil fuel feeding Electrically operated gate；
Described fire-resistant fuel tank is used for storing fire resistant oil, and receives the oil return of Anti-fuel Oil System user；At described fire-resistant fuel tank
In be provided with described electric heater, for fire resistant oil is heated；
Pipeline between the outlet at bottom and fire resistant oil fuel feeding Electrically operated gate of described fire-resistant fuel tank is sequentially provided with described
One fire resistant oil pump and the first fire resistant oil are for oil screen；Described second fire resistant oil pump and the first fire resistant oil pump are connected in parallel, first
The entrance of fire resistant oil pump and the entrance of the second fire resistant oil pump are respectively equipped with entrance Electrically operated gate, at the first fire resistant oil delivery side of pump and
Two fire resistant oil delivery side of pump are respectively equipped with outlet Electrically operated gate；Described second fire resistant oil supplies oil screen for oil screen and the first fire resistant oil
It is connected in parallel, is respectively equipped with entrance at the entrance of the first fire resistant oil confession oil screen and the entrance of the second fire resistant oil confession oil screen electronic
Door, supplies the outlet of oil screen and the second fire resistant oil to supply the outlet of oil screen to be respectively equipped with outlet non-return door at the first fire resistant oil；
Pipeline between the upper outlet and the female pipe of fire resistant oil pump outlet of described fire-resistant fuel tank is provided with described fire resistant oil
Pump recirculation pressure maintaining valve；
Described high pressure accumulator is connected for the outlet of oil screen with fire resistant oil by pipeline, at described high pressure accumulator with anti-
Pipeline between fuel feed filter screen is provided with high pressure accumulator entrance Electrically operated gate；
Pipeline between another outlet at bottom and a upper entrance of fire-resistant fuel tank of described fire-resistant fuel tank sets successively
There are described first fire resistant oil recirculation pump, regenerating unit entrance mother's pipe Electrically operated gate and the first regenerating unit；Described second fire resistant oil
Recirculation pump and the first fire resistant oil recirculation pump are connected in parallel, at the entrance of the first fire resistant oil recirculation pump and the second fire resistant oil again
The entrance of circulating pump is respectively equipped with entrance Electrically operated gate, at the first fire resistant oil recirculation delivery side of pump and the second fire resistant oil recirculation pump
Outlet be respectively equipped with outlet non-return door；Described second regenerating unit and the first regenerating unit are connected in parallel, at the first regeneration dress
The entrance put and the entrance of the second regenerating unit are respectively equipped with entrance Electrically operated gate, in outlet and second regeneration of the first regenerating unit
The outlet of device is respectively equipped with outlet Electrically operated gate；
Depend on pipeline between fire resistant oil recirculation delivery side of pump mother pipe to another upper entrance of described fire-resistant fuel tank
Secondary it is provided with described cooler entrance mother's pipe Electrically operated gate and the first cooler；Described second cooler and the first cooler parallel connection are even
Connect, be respectively equipped with entrance Electrically operated gate, in the outlet of the first cooler at the entrance of the first cooler and the entrance of the second cooler
And second the outlet of cooler be respectively equipped with outlet Electrically operated gate.
In one embodiment, described fire-resistant fuel tank Zhong mono-road fire resistant oil sequentially pass through described first fire resistant oil pump and/or
Second fire resistant oil pump, the first fire resistant oil enter anti-for oil screen and/or the second fire resistant oil for oil screen, fire resistant oil fuel feeding Electrically operated gate
Fuel system user.
In one embodiment, another road fire resistant oil in described fire-resistant fuel tank flows into described first fire resistant oil recirculation pump
And/or the second fire resistant oil recirculation pump, beaten followed by described first fire resistant oil recirculation pump and/or the second fire resistant oil recirculation pump
Ring, a part returns described fire-resistant fuel tank after being purified by described first regenerating unit and/or the second regenerating unit, another part by
Described first cooler and/or the second cooler return described fire-resistant fuel tank after cooling down.
In one embodiment, described thermal power plant high pressure fireresistant oil system also includes: high pressure accumulator blowdown Electrically operated gate, connects
On pipeline between described high pressure accumulator entrance Electrically operated gate and described high pressure accumulator, for described high pressure accumulator is entered
Row automatic pollution discharge.
In one embodiment, described thermal power plant high pressure fireresistant oil system also includes: high pressure fireresistant oil system program controls to patrol
Collect operation button, fire resistant oil pump block push button and recirculation pump block push button.
Another aspect of the present invention additionally provides a kind of thermal power plant high pressure fireresistant oil system on off control method, described thermal power plant
High pressure fireresistant oil system on off control method includes:
Judge whether that the entrance Electrically operated gate of the first fire resistant oil pump and the entrance Electrically operated gate of the second fire resistant oil pump are opened, and first
The entrance Electrically operated gate of fire resistant oil recirculation pump and the entrance Electrically operated gate of the second fire resistant oil recirculation pump are opened, and regenerating unit entrance
Female pipe Electrically operated gate is opened, and the entrance Electrically operated gate of the first regenerating unit and outlet Electrically operated gate are opened, and the entering of the second regenerating unit
Mouth Electrically operated gate and outlet Electrically operated gate are closed, and cooler entrance mother's pipe Electrically operated gate is closed, and the entrance Electrically operated gate of the first cooler
And outlet Electrically operated gate open, and the entrance Electrically operated gate of the second cooler and outlet Electrically operated gate close, and the first fire resistant oil fuel feeding filter
Entrance Electrically operated gate and the outlet Electrically operated gate of net are opened, and the second fire resistant oil supplies the entrance Electrically operated gate of oil screen and exports Electrically operated gate
Close, and fire resistant oil fuel feeding Electrically operated gate is closed, and high pressure accumulator entrance Electrically operated gate is opened, and high pressure accumulator blowdown Electrically operated gate is
Close；If it is not, then send unlatching the first fire resistant oil pump entrance Electrically operated gate and the instruction of the second fire resistant oil pump entrance Electrically operated gate, and open
Open the first fire resistant oil recirculation pump entrance Electrically operated gate and the instruction of the second fire resistant oil recirculation pump entrance Electrically operated gate, and open regeneration
The instruction of device portal mother's pipe Electrically operated gate, and open the first regenerating unit entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close
Close the second regenerating unit entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and the instruction of closedown cooler entrance mother's pipe Electrically operated gate,
And open the first cooler entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close the second cooler entrance Electrically operated gate and outlet
The instruction of Electrically operated gate, and unlatching the first fire resistant oil is for oil screen entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close second
Fire resistant oil is for oil screen entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and closes the instruction of fire resistant oil fuel feeding Electrically operated gate；
If it is, judge whether the first fire resistant oil recirculation pump has been turned on；If described first fire resistant oil recirculation pump is not
Start, send the instruction starting the first fire resistant oil recirculation pump；
If described first fire resistant oil recirculation pump has been turned on, it is judged that whether recirculation pump outlet main-piping pressure is more than first
Preset pressure value；
If described recirculation pump outlet main-piping pressure is more than described first preset pressure value, it may be judged whether has put into and has followed
Ring pump is interlocked；If recirculation pump interlocking does not puts into, send input recirculation pump interlocking instruction；
If recirculation oil pump interlocking puts into, it is judged that whether the oil temperature in fire-resistant fuel tank is more than preset temperature；If institute
When stating the oil temperature in fire-resistant fuel tank less than described preset temperature, send the instruction starting electric heater, in described fire-resistant fuel tank
Fire resistant oil heating；
If the oil temperature in described fire-resistant fuel tank is more than described preset temperature, it may be judged whether the first fire resistant oil pump has been turned on,
And electric heater quits work；If described first fire resistant oil pump is not actuated, and/or described electric heater does not quits work,
Send the instruction starting the first fire resistant oil pump, and the instruction of electric heater out of service；
If described first fire resistant oil pump has been turned on, and electric heater quits work, it is judged that fire resistant oil pump outlet mother's pipe
Whether pressure is more than the second preset pressure value；
If described fire resistant oil pump outlet main-piping pressure is more than described second preset pressure value, it may be judged whether put into fire-resistant
Oil pump is interlocked；If fire resistant oil pump interlocking does not puts into, send the instruction putting into fire resistant oil pump interlocking；
If fire resistant oil pump interlocking puts into, it is judged that cooler entrance mother's pipe Electrically operated gate is left the most；If described cooling
Device entrance mother's pipe Electrically operated gate is not left, and sends the instruction opening cooler entrance mother's pipe Electrically operated gate.
In one embodiment, described thermal power plant high pressure fireresistant oil system on off control method also includes:
Judge whether that fire resistant oil pump interlocking has dropped out, and recirculation pump interlocking has dropped out；If fire resistant oil pump interlocking does not moves back
Go out, and/or recirculation pump interlocking does not exits, and sends the instruction exiting fire resistant oil pump interlocking, and exits the finger of recirculation pump interlocking
Order；
If fire resistant oil pump interlocking has dropped out, and recirculation pump interlocking has dropped out, it is judged that the first fire resistant oil pump and second resists
Fuel pump is the most out of service；If described first fire resistant oil pump is the most out of service, and/or the second fire resistant oil pump does not stops
Run, send the instruction of the first fire resistant oil pump out of service, and the instruction of the second fire resistant oil pump out of service；
If described first fire resistant oil pump and the second fire resistant oil pump are the most out of service, it is judged that the first fire resistant oil recirculation pump
And second fire resistant oil recirculation pump the most out of service；If described first fire resistant oil recirculation pump is the most out of service, and/
Or second fire resistant oil recirculation pump the most out of service, send the instruction of the first fire resistant oil recirculation pump out of service, and stop fortune
The instruction of row the second fire resistant oil recirculation pump.
In one embodiment, described thermal power plant high pressure fireresistant oil system on off control method also includes:
Judge whether that the oil level in described fire-resistant fuel tank is more than higher than the pressure preset in liquid level, and described high pressure accumulator
3rd preset pressure value；
If the oil level in described fire-resistant fuel tank is more than described default liquid level, and the pressure in described high pressure accumulator is more than
Described 3rd preset pressure value, then judge whether that the entrance of the entrance Electrically operated gate of the first fire resistant oil pump and the second fire resistant oil pump is electronic
Door is opened, and the entrance Electrically operated gate of the entrance Electrically operated gate of the first fire resistant oil recirculation pump and the second fire resistant oil recirculation pump is opened,
And regenerating unit entrance mother's pipe Electrically operated gate leaves, and the entrance Electrically operated gate of the first regenerating unit and outlet Electrically operated gate are opened, and the
Entrance Electrically operated gate and the outlet Electrically operated gate of two regenerating units are closed, and cooler entrance mother's pipe Electrically operated gate is closed, and the first cooling
Entrance Electrically operated gate and the outlet Electrically operated gate of device are opened, and the entrance Electrically operated gate of the second cooler and outlet Electrically operated gate are closed, and the
One fire resistant oil is opened for entrance Electrically operated gate and the outlet Electrically operated gate of oil screen, and the second fire resistant oil is for the entrance Electrically operated gate of oil screen
And outlet Electrically operated gate closes, and fire resistant oil fuel feeding Electrically operated gate is closed, and high pressure accumulator entrance Electrically operated gate is opened；And high-voltage energy-storage
Device blowdown Electrically operated gate is closed.
In one embodiment, described thermal power plant high pressure fireresistant oil system on off control method also includes:
Judge whether that steam turbine and steam feed pump driving steam turbine trip the most；
If described steam turbine and steam feed pump driving steam turbine trip the most, it may be judged whether fire resistant oil pump interlocking moves back
Go out, and recirculation pump interlocking has dropped out.
In one embodiment, described first preset pressure value is 0.1MPa, and the second preset pressure value is 12MPa, described pre-
If temperature is 20 DEG C.
In one embodiment, described default liquid level is 500mm, and described 3rd preset pressure value is 10MPa.
The beneficial effects of the present invention is: thermal power plant's high pressure fireresistant oil system of embodiment of the present invention offer and start and stop control thereof
Method processed can be under thermal power plant's high pressure fireresistant oil system full cut-off state, it is achieved the automatic startup of high pressure fireresistant oil system；At fire
Under high-pressure power plant Anti-fuel Oil System running status, it is achieved being automatically stopped of high pressure fireresistant oil system；And take into account artificial judgement, can
To realize the leapfrog operation of thermal power plant's high pressure fireresistant oil system program control logic, when the operation bar of a certain step of programed logic
When part causes step sequence cannot be carried out for meeting, whether can ignore and operate leapfrog action by Rule of judgment artificially, continue
The operation of programed logic is until starting complete.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment of the present invention thermal power plant high pressure fireresistant oil system；
Fig. 2 is the on off control method flow diagram of embodiment of the present invention thermal power plant high pressure fireresistant oil system；
Fig. 3 is the on off control method flow diagram of another embodiment of the present invention thermal power plant high pressure fireresistant oil system.
Drawing reference numeral:
1. the first fire resistant oil pump entrance Electrically operated gate 2. first fire resistant oil pump outlet non-return door
3. the second fire resistant oil pump entrance Electrically operated gate 4. second fire resistant oil pump outlet non-return door
5. the first fire resistant oil exports Electrically operated gate for oil screen entrance Electrically operated gate 6. first fire resistant oil for oil screen
7. the second fire resistant oil exports Electrically operated gate for oil screen entrance Electrically operated gate 8. second fire resistant oil for oil screen
9. fire resistant oil fuel feeding Electrically operated gate 10. high pressure accumulator entrance Electrically operated gate
11. high pressure accumulator blowdown Electrically operated gate 12. first fire resistant oil recirculation pump entrance Electrically operated gate
13. first fire resistant oil recirculation pump outlet non-return door 14. second fire resistant oil recirculation pump entrance Electrically operated gate
15. second fire resistant oil recirculation pump outlet non-return door 16. cooler entrance mother's pipe Electrically operated gate
17. first cooler entrance Electrically operated gate 18. first cooler outlet Electrically operated gate
19. second cooler entrance Electrically operated gate 20. second cooler outlet Electrically operated gate
21. regenerating unit entrance mother's pipe Electrically operated gate 22. first regenerating unit entrance Electrically operated gate
23. first regenerating unit outlet Electrically operated gate 24. second regenerating unit entrance Electrically operated gate
25. second regenerating unit outlet Electrically operated gate 26. fire resistant oil pump recirculation pressure maintaining valves
27. first fire resistant oil pump 28. second fire resistant oil pumps
29. first fire resistant oil recirculation pump 30. second fire resistant oil recirculation pumps
31. first cooler 32. second coolers
33. first regenerating unit 34. second regenerating units
35. first fire resistant oils supply oil screen for oil screen 36. second fire resistant oil
37. fire-resistant fuel tank electric heater 38. fire-resistant fuel tanks
39. high pressure accumulators
Detailed description of the invention
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
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, embodiments provide a kind of thermal power plant high pressure fireresistant oil system, this system comprises: fire-resistant
Fuel tank the 38, first fire resistant oil pump the 27, second fire resistant oil pump the 28, first fire resistant oil recirculation pump the 29, second fire resistant oil recirculation pump
30, first regenerating unit the 33, second regenerating unit the 34, first cooler the 31, second cooler 32, electric heater 37, high pressure store
Oil screen 36, fire resistant oil pump recirculation pressure maintaining valve 26, regeneration can be supplied by device the 39, first fire resistant oil for oil screen the 35, second fire resistant oil
Device portal mother's pipe Electrically operated gate 21, cooler entrance mother's pipe Electrically operated gate 16, high pressure accumulator entrance Electrically operated gate 10 and fire resistant oil supply
Oil Electrically operated gate 9.
Fire-resistant fuel tank 38 is used for storing fire resistant oil, and receives the oil return of Anti-fuel Oil System user.Fire-resistant fuel tank 38 sets
There is electric heater 37, heat for the fire resistant oil resisted in fuel tank 38.
Pipeline between the outlet at bottom and fire resistant oil fuel feeding Electrically operated gate 9 of fire-resistant fuel tank 38 is sequentially provided with the first fire-resistant
Oil pump 27 and the first fire resistant oil are for oil screen 35.Second fire resistant oil pump 28 is connected in parallel with the first fire resistant oil pump 27, resists first
The entrance of fuel pump 27 is provided with entrance Electrically operated gate 1, is provided with outlet non-return door 2 at the first fire resistant oil delivery side of pump.In the second fire-resistant
The entrance of oil pump 28 is provided with entrance Electrically operated gate 3, and the outlet at the second fire resistant oil pump 28 is provided with outlet non-return door 4.Second fire resistant oil
It is connected in parallel for oil screen 35 with the first fire resistant oil for oil screen 36, divides for the entrance and exit of oil screen 35 at the first fire resistant oil
It is not provided with entrance Electrically operated gate 5 and outlet Electrically operated gate 6, supplies at the second fire resistant oil the entrance and exit of oil screen 36 to be respectively equipped with entrance
Electrically operated gate 7 and outlet Electrically operated gate 8.
Pipeline between the upper outlet and the female pipe of fire resistant oil pump outlet of fire-resistant fuel tank 38 is provided with fire resistant oil pump follow again
Ring pressure maintaining valve 26.
High pressure accumulator 39 is connected, at high pressure accumulator 39 and fire resistant oil for the outlet of oil screen with fire resistant oil by pipeline
It is provided with high pressure accumulator entrance Electrically operated gate 10 for the pipeline between oil screen.
Pipeline between another outlet at bottom and a upper entrance of fire-resistant fuel tank 38 of fire-resistant fuel tank 38 sets successively
There are the first fire resistant oil recirculation pump 29, regenerating unit entrance mother's pipe Electrically operated gate 21 and the first regenerating unit 33.Second fire resistant oil is again
Circulating pump 30 is connected in parallel with the first fire resistant oil recirculation pump 29, in entrance and second fire-resistant of the first fire resistant oil recirculation pump 29
The entrance of oil recirculation pump 30 is respectively equipped with entrance Electrically operated gate 12 and 14, in the outlet and second of the first fire resistant oil recirculation pump 29
The outlet of fire resistant oil recirculation pump 30 is respectively equipped with outlet non-return door 13 and 15.Second regenerating unit 34 and the first regenerating unit 33
Be connected in parallel, the entrance of the first regenerating unit 33 and the porch of the second regenerating unit 34 be respectively equipped with entrance Electrically operated gate 22 and
24, it is respectively equipped with outlet Electrically operated gate 23 and 25 in the outlet of the first regenerating unit 33 and the exit of the second regenerating unit 34.
On pipeline between fire resistant oil recirculation delivery side of pump mother's pipe to another upper entrance of fire-resistant fuel tank 38 successively
It is provided with cooler entrance mother's pipe Electrically operated gate 16 and the first cooler 31.Second cooler 32 is connected in parallel with the first cooler 31,
It is respectively equipped with entrance Electrically operated gate 17 and 19, in the first cooling at the entrance of the first cooler 31 and the porch of the second cooler 32
The outlet of device 31 and the exit of the second cooler 32 are respectively equipped with outlet Electrically operated gate 18 and 20.
As it is shown in figure 1, embodiment of the present invention thermal power plant high pressure fireresistant oil system is additionally provided with the pipeline of other necessity, valve
Door and relevant thermal technology's measuring point etc..
In thermal power plant's high pressure fireresistant oil system that the embodiment of the present invention provides, fire-resistant fuel tank 38 is store as the oil sources of system
Standby container, for receiving the oil return of Anti-fuel Oil System user, and each is used to be delivered to system by fire resistant oil pump 27 or 28 adherence pressure
Family.Fire resistant oil pump 27 generally uses plunger displacement pump, and its outlet pressure is higher, and the female pipe of fire resistant oil pump outlet is provided with spill valve (i.e.
Fire resistant oil pump recirculation pressure maintaining valve 26), system pressure can be controlled at about 14MPa.High pressure accumulator 39 is before system start-up
Being filled with nitrogen, pressure reaches 10MPa.After system start-up, when when changing suddenly by oil mass of system user, high pressure accumulator 39
Play the effect of a buffering thus maintain stablizing of system pressure.The oil that fire resistant oil pump 27 or 28 is sent is through filter (first
Fire resistant oil supplies oil screen 36 for oil screen 35 or the second fire resistant oil) go the removal of impurity, then deliver to each user.First fire resistant oil follows again
The effect of ring pump 29 or the second fire resistant oil recirculation pump 30 is that the oil in fire-resistant fuel tank 38 is beaten circulation, part supply regeneration dress
Putting 33 or 34 to purify, another part supply cooler 31 or 32 cools down, and final oil return is all back to fire-resistant fuel tank 38.Separately
Outward, the electric heater 37 being positioned at fire-resistant fuel tank 38 is usually use after fire resistant oil recirculation pump starts, and prevents oily static shape
Hot-spot under state, when the oil temperature in fire-resistant fuel tank 38 is too low, oil temperature can be heated to more than 20 DEG C by electric heater 38, gives
The startup of fire resistant oil pump creates conditions.
In one embodiment, fire-resistant fuel tank 38 Zhong mono-road fire resistant oil sequentially passes through the first fire resistant oil pump 27 (or second
Fire resistant oil pump 28), the first fire resistant oil is for oil screen 35 (or the second fire resistant oil is for oil screen 36), fire resistant oil fuel feeding Electrically operated gate 9
Enter Anti-fuel Oil System user.First fire resistant oil pump 27 is the most standby with the second fire resistant oil pump 28, but under certain condition,
Can also come into operation simultaneously.In like manner, the first fire resistant oil can also be each other for oil screen 36 for oil screen 35 and the second fire resistant oil
Standby, it is also possible to come into operation simultaneously.
Another road fire resistant oil in fire-resistant fuel tank 38 flows into the first fire resistant oil recirculation pump 29, and (or the second fire resistant oil follows again
Ring pump 30), the first fire resistant oil recirculation pump 29 (or second fire resistant oil recirculation pump 30) play circulation, a part is by first again
Generating apparatus 33 (or second regenerating unit 34) returns fire-resistant fuel tank 38 after purifying, another part by the first cooler 31 (or
Second cooler 32) cool down after return fire-resistant fuel tank 38.
Normally, the thermal power plant's high pressure fireresistant oil system in the embodiment of the present invention also includes high pressure accumulator blowdown Electrically operated gate
11, it is connected on the pipeline between high pressure accumulator entrance Electrically operated gate 10 and high pressure accumulator 39, for exiting fortune in system
During row, high pressure accumulator 39 is carried out automatic pollution discharge, need to close high pressure accumulator entrance Electrically operated gate 10 before blowdown starts.
Above-mentioned power plant high pressure fireresistant oil system also includes three buttons: high pressure fireresistant oil system program controls logic
Operation button A1, fire resistant oil pump block push button A2 and recirculation pump block push button A3.
Utilize fire resistant oil pump block push button A2, automatically the first fire resistant oil pump 27 and the second fire resistant oil pump 28 can be put into and set
Standby interlocking.After interlocking puts into, if a wherein unit trip, another equipment can interlocked startup rapidly, maintenance system is just
Often run.In like manner, utilize the recirculation pump block push button A3 can be automatically by the first fire resistant oil recirculation pump 29 and the second fire resistant oil
Recirculation pump 30 used device is interlocked, and when a wherein recirculation pump tripping operation, another recirculation pump can be interlocked rapidly and be opened
Dynamic, maintain system properly functioning.
The embodiment of the present invention additionally provides the on off control method of a kind of thermal power plant high pressure fireresistant oil system, this on off control
The executive agent of method can be computer system etc..As in figure 2 it is shown, this on off control method includes:
Step S101, the entrance Electrically operated gate 1 judging whether 1. the first fire resistant oil pump 27 and the entrance of the second fire resistant oil pump 28
2. and the entrance Electrically operated gate 12 of the first fire resistant oil recirculation pump 29 and entering of the second fire resistant oil recirculation pump 30 Electrically operated gate 3 is opened,
Mouthful Electrically operated gate 14 is opened, 3. and regenerating unit entrance mother's pipe Electrically operated gate is left, 4. and the entrance Electrically operated gate of the first regenerating unit 33
22 and outlet Electrically operated gate 23 open, 5. and the entrance Electrically operated gate 24 of the second regenerating unit 34 and outlet Electrically operated gate 25 close, 6. and
Cooler entrance mother's pipe Electrically operated gate 16 is closed, 7. and the entrance Electrically operated gate 17 of the first cooler 31 and outlet Electrically operated gate 18 open,
8. and the entrance Electrically operated gate 19 of the second cooler 32 and outlet Electrically operated gate 20 are closed, 9. and the first fire resistant oil is for the entering of oil screen 35
10. and the second fire resistant oil is for the entrance Electrically operated gate 7 of oil screen 36 and outlet Electrically operated gate 8 mouthful Electrically operated gate 5 and outlet Electrically operated gate 6 are opened,
Close,And fire resistant oil fuel feeding Electrically operated gate 9 closes,And high pressure accumulator entrance Electrically operated gate 10 opens；And high-voltage energy-storage
Device blowdown Electrically operated gate 11 is closed.If above-mentioned 13 conditions have any one condition to be unsatisfactory for, or multiple condition is had to be discontented with
Foot, then carry out step S102, sends and opens the first fire resistant oil pump entrance Electrically operated gate 1 and the second fire resistant oil pump entrance Electrically operated gate 3
Instruction, and open the first fire resistant oil recirculation pump entrance Electrically operated gate 12 and finger of the second fire resistant oil recirculation pump entrance Electrically operated gate 14
Order, and open the instruction of regenerating unit entrance mother's pipe Electrically operated gate 21, and open the first regenerating unit entrance Electrically operated gate 22 and outlet
The instruction of Electrically operated gate 23, and close the second regenerating unit entrance Electrically operated gate 24 and the instruction of outlet Electrically operated gate 25, and close cooling
The instruction of device entrance mother's pipe Electrically operated gate 16, and open the first cooler entrance Electrically operated gate 17 and the instruction of outlet Electrically operated gate 18, and
Close the second cooler entrance Electrically operated gate 19 and the instruction of outlet Electrically operated gate 20, and open the first fire resistant oil for oil screen entrance electricity
Dynamic door 5 and the instruction of outlet Electrically operated gate 6, and close the second fire resistant oil for oil screen entrance Electrically operated gate 7 and the finger of outlet Electrically operated gate 8
Order, and close the instruction of fire resistant oil fuel feeding Electrically operated gate 9.If the Electrically operated gate of this unlatching is originally opened in step S101,
Then can ignore the open command received in step S102；If the Electrically operated gate should closed in step S101 is originally closed
Close, then can ignore the out code received in step S102, lower same.If above-mentioned 13 conditions are the most satisfied, then carry out
Step S103.
Step S103, judge whether the first fire resistant oil recirculation pump 29 has been turned on.If the first fire resistant oil recirculation pump 29
Not actuated, send the instruction (step S104) starting the first fire resistant oil recirculation pump 29.If the first fire resistant oil recirculation pump 29
Have been turned on, carry out step S105.
Step S105, judge that recirculation pump outlet main-piping pressure is whether more than the first preset pressure value.If recirculation pump
Outlet main-piping pressure, more than the first preset pressure value, carries out step S106.
In one embodiment, the first above-mentioned desirable 0.1MPa of preset pressure value.
Step S106, judge whether to put into recirculation pump interlocking.If recirculation pump interlocking does not puts into, send input again
Circulating pump interlocking instruction (step S107).If recirculation pump interlocking puts into, carry out step S108.
Whether step S108, the oil temperature judged in fire-resistant fuel tank 38 are more than preset temperature.If the oil in fire-resistant fuel tank 38
Temperature less than preset temperature, then sends the instruction (step S109) starting electric heater 37, adds to the fire resistant oil in fire-resistant fuel tank 38
Heat.If the oil temperature in fire-resistant fuel tank 38 is more than preset temperature, carry out step S110.
Normally, preset temperature is 20 DEG C.
Step S110, judge whether that the first fire resistant oil pump 27 has been turned on, and electric heater 37 quits work.If first
Fire resistant oil pump 27 is not actuated or electric heater 37 does not quits work, or the first fire resistant oil pump 27 is not actuated and electric heater 37 not
Quit work, then send the instruction starting the first fire resistant oil pump 27, and the instruction (step S111) of electric heater out of service 37.
If the first fire resistant oil pump 27 has been turned on, and electric heater 37 quits work, carries out step S112.
Step S112, judge that fire resistant oil pump outlet main-piping pressure is whether more than the second preset pressure value.If fire resistant oil pump
Outlet main-piping pressure, more than the second preset pressure value, carries out step S113.
In one embodiment, the second above-mentioned preset pressure value takes 12MPa.
Step S113, judge whether to put into fire resistant oil pump interlocking.If fire resistant oil pump interlocking does not puts into, send input anti-
The instruction (step S114) of fuel pump interlocking.If fire resistant oil pump interlocking puts into, carry out step S115.
Step S115, judge that cooler entrance mother's pipe Electrically operated gate 16 is left the most.If cooler entrance mother's pipe Electrically operated gate
16 do not open, and send the instruction (step S116) opening cooler entrance mother's pipe Electrically operated gate.
On off control method shown in Fig. 2 is for controlling the startup of thermal power plant's high pressure fireresistant oil system, therefore opening shown in Fig. 2
Stop control method is properly termed as the startup step sequence of thermal power plant's high pressure fireresistant oil system.
The purpose of step S103～step S107 is to start recirculation pump and to judge that it is exerted oneself the most normal.Step S108～
Step S109 is for judging whether the oil temperature in fire-resistant fuel tank 38 is more than 20 DEG C, if more than 20 DEG C, then starting fire resistant oil pump, if little
In 20 DEG C, then start electric heater heating fire resistant oil, prepare for starting fire resistant oil pump.Step S110～step S114 are used for opening
Dynamic high-pressure fire resistant oil pump, and it is the most normal to judge that it is exerted oneself.
In one embodiment, the permissive condition starting step sequence is: 1. the oil level in fire-resistant fuel tank 38 is higher than presetting liquid level；②
Pressure in high pressure accumulator 39 is more than one the 3rd preset pressure value.Normally, above-mentioned default liquid level is 500m, and the 3rd presets
Force value is 10MPa.That is, before carrying out step S101, need to prejudge the oil level in whether fire-resistant fuel tank 38 and be higher than
Pressure in 500mm and high pressure accumulator 39 is more than 10MPa, in the case of the two condition all meets, just allows to start.
The embodiment of the present invention additionally provides the on off control method of a kind of thermal power plant high pressure fireresistant oil system, this on off control
The executive agent of method can be computer system etc..As it is shown on figure 3, this on off control method specifically includes that
Step S201, judge fire resistant oil pump interlocking and recirculation pump interlocking the most all have dropped out.If fire resistant oil pump is interlocked
There is one not exit in interlocking with recirculation pump, or two interlockings all do not exit, send the instruction exiting fire resistant oil pump interlocking
And exit the instruction (step S202) of recirculation pump interlocking.If fire resistant oil pump interlocking has dropped out, and recirculation pump has been interlocked the most
Exit, carry out step S203.
Step S203, judge that the first fire resistant oil pump 27 and the second fire resistant oil pump 28 are the most out of service.If first
Fire resistant oil pump 27 and the second fire resistant oil pump 28 have one the most out of service, or both is the most out of service, then send stopping fortune
The instruction of row the first fire resistant oil pump 27 and the instruction (step S204) of the second fire resistant oil pump 28 out of service.If the first fire resistant oil
Pump 27 and the second fire resistant oil pump 28 are the most out of service, carry out step S205.
Step S205, judge the first fire resistant oil recirculation pump 29 and the second fire resistant oil recirculation pump 30 the most stopped fortune
OK.If the first fire resistant oil recirculation pump 29 and the second fire resistant oil recirculation pump 30 have a pump the most out of service, or two
Person is the most out of service, then send the instruction of the first fire resistant oil recirculation pump 29 out of service, and the second fire resistant oil out of service
The instruction (step S206) of recirculation pump 30.
On off control method shown in Fig. 3 is for controlling the stopping of high pressure fireresistant oil system, therefore the on off control shown in Fig. 3
Method can also become the stopping step of thermal power plant's high pressure fireresistant oil system.
In one embodiment, the permissive condition stopping step sequence is: be connected with embodiment of the present invention mesohigh Anti-fuel Oil System
Steam turbine and steam feed pump driving steam turbine the most trip.That is, steamer is driven when above-mentioned steam turbine and steam feed pump
Just allow when machine trips the most to stop.
On off control method shown in Fig. 2 and Fig. 3 is the program of embodiment of the present invention moderate heat high-pressure power plant Anti-fuel Oil System
Control logic.Utilize this programed logic can realize following functions: under thermal power plant's high pressure fireresistant oil system full cut-off state,
Realize the automatic startup of high pressure fireresistant oil system；Under thermal power plant's high pressure fireresistant oil system running state, it is achieved high pressure fireresistant oil
Being automatically stopped of system；When the startup program of thermal power plant's high pressure fireresistant oil system is run to a certain step, condition is unsatisfactory for, if people
For judging that this condition can be ignored, then can manually carry out leapfrog action and continue the operation of startup program, until high pressure fireresistant oil
System start-up is complete.
Each step of the on off control method shown in Fig. 2 and Fig. 3, first judges whether feedback receives, if received, continues
Continue and carry out next step；If do not received, then etc. to be feedback receive.When not receiving due feedback signal, programed logic
This step can be rested on, wait manual operation.Power plant operations staff can find current and run the step unreceived feedback signal of sequence, people
For judging whether unreceived feedback signal affects continuing executing with of program programed logic.Work as if this feedback signal does not affect
Proceeding of front programed logic, operations staff can operate leapfrog action and continue the execution of programed logic；If should
Feedback signal affects present procedure and controls proceeding of logic, then operations staff can be unsatisfied according to each found
Feedback signal, goes investigation problem targetedly, until receiving this feedback signal, continues executing with programed logic.
By the on off control method shown in Fig. 2 and Fig. 3, can be in thermal power plant's high pressure fireresistant oil system full cut-off state
Under, it is achieved the automatic startup of high pressure fireresistant oil system；Under thermal power plant's high pressure fireresistant oil system running state, it is achieved high pressure fire-resistant
Being automatically stopped of oil system.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware
Execute the form of example.And, the present invention can use at one or more computers wherein including computer usable program code
The upper computer program product implemented of usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.)
The form of product.
The present invention is with reference to method, equipment (system) and the flow process of computer program according to embodiments of the present invention
Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real
The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or
The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
The present invention applies specific embodiment principle and the embodiment of the present invention are set forth, above example
Explanation be only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art,
According to the thought of the present invention, the most all will change, in sum, in this specification
Hold and should not be construed as limitation of the present invention.
Claims (11)
1. thermal power plant's high pressure fireresistant oil system, it is characterised in that described thermal power plant high pressure fireresistant oil system includes: fire resistant oil
Case, the first fire resistant oil pump, the second fire resistant oil pump, the first fire resistant oil recirculation pump, the second fire resistant oil recirculation pump, the first regeneration dress
Put, the second regenerating unit, the first cooler, the second cooler, electric heater, high pressure accumulator, first fire resistant oil for oil screen,
Second fire resistant oil is for oil screen, fire resistant oil pump recirculation pressure maintaining valve, regenerating unit entrance mother's pipe Electrically operated gate, cooler entrance mother pipe
Electrically operated gate, high pressure accumulator entrance Electrically operated gate and fire resistant oil fuel feeding Electrically operated gate；
Described fire-resistant fuel tank is used for storing fire resistant oil, and receives the oil return of Anti-fuel Oil System user；Described fire-resistant fuel tank sets
There is described electric heater, for fire resistant oil is heated；
Pipeline between the outlet at bottom and fire resistant oil fuel feeding Electrically operated gate of described fire-resistant fuel tank is sequentially provided with described first resist
Fuel pump and the first fire resistant oil are for oil screen；Described second fire resistant oil pump and the first fire resistant oil pump are connected in parallel, in the first fire-resistant
The entrance of oil pump and the entrance of the second fire resistant oil pump are respectively equipped with entrance Electrically operated gate, resist at the first fire resistant oil delivery side of pump and second
Fuel oil delivery side of pump is respectively equipped with outlet non-return door；Described second fire resistant oil is in parallel for oil screen for oil screen and the first fire resistant oil
Connect, supply the entrance of oil screen and the second fire resistant oil to supply the entrance of oil screen to be respectively equipped with entrance Electrically operated gate at the first fire resistant oil,
The outlet of oil screen and the second fire resistant oil is supplied to supply the outlet of oil screen to be respectively equipped with outlet Electrically operated gate at the first fire resistant oil；
Pipeline between the upper outlet and the female pipe of fire resistant oil pump outlet of described fire-resistant fuel tank is provided with described fire resistant oil pump again
Circulation pressure maintaining valve；
Described high pressure accumulator is connected, at described high pressure accumulator and fire resistant oil for the outlet of oil screen with fire resistant oil by pipeline
It is provided with high pressure accumulator entrance Electrically operated gate for the pipeline between oil screen；
Pipeline between another outlet at bottom and a upper entrance of fire-resistant fuel tank of described fire-resistant fuel tank is sequentially provided with institute
State the first fire resistant oil recirculation pump, regenerating unit entrance mother's pipe Electrically operated gate and the first regenerating unit；Described second fire resistant oil follows again
Ring pump and the first fire resistant oil recirculation pump are connected in parallel, at entrance and the second fire resistant oil recirculation of the first fire resistant oil recirculation pump
The entrance of pump is respectively equipped with entrance Electrically operated gate, in going out of the first fire resistant oil recirculation delivery side of pump and the second fire resistant oil recirculation pump
Mouth is respectively equipped with outlet non-return door；Described second regenerating unit and the first regenerating unit are connected in parallel, at the first regenerating unit
The entrance of entrance and the second regenerating unit is respectively equipped with entrance Electrically operated gate, at outlet and second regenerating unit of the first regenerating unit
Outlet be respectively equipped with outlet Electrically operated gate；
Set successively on pipeline between fire resistant oil recirculation delivery side of pump mother pipe to another upper entrance of described fire-resistant fuel tank
There are described cooler entrance mother's pipe Electrically operated gate and the first cooler；Described second cooler and the first cooler are connected in parallel,
The entrance of the first cooler and the entrance of the second cooler are respectively equipped with entrance Electrically operated gate, in the outlet and second of the first cooler
The outlet of cooler is respectively equipped with outlet Electrically operated gate.
Thermal power plant the most according to claim 1 high pressure fireresistant oil system, it is characterised in that described fire-resistant fuel tank Zhong mono-tunnel
Fire resistant oil sequentially passes through described first fire resistant oil pump and/or the second fire resistant oil pump, the first fire resistant oil confession oil screen and/or second are anti-
Fuel feed filter screen, fire resistant oil fuel feeding Electrically operated gate enter Anti-fuel Oil System user.
Thermal power plant the most according to claim 2 high pressure fireresistant oil system, it is characterised in that another in described fire-resistant fuel tank
Road fire resistant oil flows into described first fire resistant oil recirculation pump and/or the second fire resistant oil recirculation pump, by described first fire resistant oil again
Circulating pump and/or the second fire resistant oil recirculation pump play circulation, and a part is by described first regenerating unit and/or the second regenerating unit
Returning described fire-resistant fuel tank after purification, another part returns after being cooled down by described first cooler and/or the second cooler
Described fire-resistant fuel tank.
Thermal power plant the most according to claim 1 high pressure fireresistant oil system, it is characterised in that described thermal power plant high pressure fireresistant oil
System also includes: high pressure accumulator blowdown Electrically operated gate, is connected to described high pressure accumulator entrance Electrically operated gate and described high-voltage energy-storage
On pipeline between device, for described high pressure accumulator is carried out automatic pollution discharge.
Thermal power plant the most according to claim 1 high pressure fireresistant oil system, it is characterised in that described thermal power plant high pressure fireresistant oil
System also includes: high pressure fireresistant oil system program controls logical operation button, fire resistant oil pump block push button and recirculation pump interlocking
Button.
6. thermal power plant's high pressure fireresistant oil system on off control method, it is characterised in that high pressure fireresistant oil system of described thermal power plant
System on off control method includes:
Judge whether that the entrance Electrically operated gate of the first fire resistant oil pump and the entrance Electrically operated gate of the second fire resistant oil pump are opened, and the first fire-resistant
The oil entrance Electrically operated gate of recirculation pump and the entrance Electrically operated gate of the second fire resistant oil recirculation pump are opened, and regenerating unit entrance mother pipe
Electrically operated gate is opened, and the entrance Electrically operated gate of the first regenerating unit and outlet Electrically operated gate are opened, and the entrance electricity of the second regenerating unit
Dynamic door and outlet Electrically operated gate are closed, and cooler entrance mother's pipe Electrically operated gate is closed, and the entrance Electrically operated gate of the first cooler and going out
Mouth Electrically operated gate is opened, and the entrance Electrically operated gate of the second cooler and outlet Electrically operated gate are closed, and the first fire resistant oil is for oil screen
Entrance Electrically operated gate and outlet Electrically operated gate are opened, and the second fire resistant oil supplies the entrance Electrically operated gate of oil screen and outlet Electrically operated gate to close,
And fire resistant oil fuel feeding Electrically operated gate closes, and high pressure accumulator entrance Electrically operated gate is opened, and high pressure accumulator blowdown Electrically operated gate is closed；
If it is not, then send unlatching the first fire resistant oil pump entrance Electrically operated gate and the instruction of the second fire resistant oil pump entrance Electrically operated gate, and open
First fire resistant oil recirculation pump entrance Electrically operated gate and the instruction of the second fire resistant oil recirculation pump entrance Electrically operated gate, and open regeneration dress
The instruction of posting port mother's pipe Electrically operated gate, and open the first regenerating unit entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close
Second regenerating unit entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close the instruction of cooler entrance mother's pipe Electrically operated gate, and
Open the first cooler entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close the second cooler entrance Electrically operated gate and outlet electricity
The instruction of dynamic door, and unlatching the first fire resistant oil is for oil screen entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and closedown second resists
Fuel feed filter screen entrance Electrically operated gate and the instruction of outlet Electrically operated gate, and close the instruction of fire resistant oil fuel feeding Electrically operated gate；
If it is, judge whether the first fire resistant oil recirculation pump has been turned on；If described first fire resistant oil recirculation pump is not actuated,
Send the instruction starting the first fire resistant oil recirculation pump；
If described first fire resistant oil recirculation pump has been turned on, it is judged that whether recirculation pump outlet main-piping pressure is preset more than first
Force value；
If described recirculation pump outlet main-piping pressure is more than described first preset pressure value, it may be judged whether put into recirculation pump
Interlocking；If recirculation pump interlocking does not puts into, send input recirculation pump interlocking instruction；
If recirculation oil pump interlocking puts into, it is judged that whether the oil temperature in fire-resistant fuel tank is more than preset temperature；If it is described anti-
When oil temperature in fuel tank is less than described preset temperature, send the instruction starting electric heater, to resisting in described fire-resistant fuel tank
Fuel Heating；
If the oil temperature in described fire-resistant fuel tank is more than described preset temperature, it may be judged whether the first fire resistant oil pump has been turned on, and electricity
Heater quits work；If described first fire resistant oil pump is not actuated, and/or described electric heater does not quits work, and sends
Start the instruction of the first fire resistant oil pump, and the instruction of electric heater out of service；
If described first fire resistant oil pump has been turned on, and electric heater quits work, it is judged that fire resistant oil pump outlet main-piping pressure
Whether more than the second preset pressure value；
If described fire resistant oil pump outlet main-piping pressure is more than described second preset pressure value, it may be judged whether put into fire resistant oil pump
Interlocking；If fire resistant oil pump interlocking does not puts into, send the instruction putting into fire resistant oil pump interlocking；
If fire resistant oil pump interlocking puts into, it is judged that cooler entrance mother's pipe Electrically operated gate is left the most；If described cooler enters
The female pipe Electrically operated gate of mouth is not opened, and sends the instruction opening cooler entrance mother's pipe Electrically operated gate.
Thermal power plant the most according to claim 6 high pressure fireresistant oil system on off control method, it is characterised in that described thermoelectricity
Factory's high pressure fireresistant oil system on off control method also includes:
Judge whether that fire resistant oil pump interlocking has dropped out, and recirculation pump interlocking has dropped out；If fire resistant oil pump interlocking does not exits,
And/or recirculation pump interlocking does not exits, send the instruction exiting fire resistant oil pump interlocking, and exit the instruction of recirculation pump interlocking；
If fire resistant oil pump interlocking has dropped out, and recirculation pump interlocking has dropped out, it is judged that the first fire resistant oil pump and the second fire resistant oil
Pump is the most out of service；If described first fire resistant oil pump is the most out of service, and/or the second fire resistant oil pump does not stops fortune
OK, the instruction of the first fire resistant oil pump out of service, and the instruction of the second fire resistant oil pump out of service are sent；
If described first fire resistant oil pump and the second fire resistant oil pump are the most out of service, it is judged that the first fire resistant oil recirculation pump and
Two fire resistant oil recirculation pumps are the most out of service；If described first fire resistant oil recirculation pump is the most out of service, and/or the
Two fire resistant oil recirculation pumps are the most out of service, send the instruction of the first fire resistant oil recirculation pump out of service, and out of service
The instruction of two fire resistant oil recirculation pumps.
Thermal power plant the most according to claim 6 high pressure fireresistant oil system on off control method, it is characterised in that described thermoelectricity
Factory's high pressure fireresistant oil system on off control method also includes:
Judge whether that the oil level in described fire-resistant fuel tank is more than the 3rd higher than the pressure preset in liquid level, and described high pressure accumulator
Preset pressure value；
If the oil level in described fire-resistant fuel tank is more than described default liquid level, and the pressure in described high pressure accumulator is more than described
3rd preset pressure value, then judged whether the entrance Electrically operated gate of the entrance Electrically operated gate of the first fire resistant oil pump and the second fire resistant oil pump
Open, and the entrance Electrically operated gate of the entrance Electrically operated gate of the first fire resistant oil recirculation pump and the second fire resistant oil recirculation pump is opened, and again
Generating apparatus entrance mother's pipe Electrically operated gate is opened, and the entrance Electrically operated gate of the first regenerating unit and outlet Electrically operated gate are opened, and second again
Entrance Electrically operated gate and the outlet Electrically operated gate of generating apparatus are closed, and cooler entrance mother's pipe Electrically operated gate is closed, and the first cooler
Entrance Electrically operated gate and outlet Electrically operated gate are opened, and the entrance Electrically operated gate of the second cooler and outlet Electrically operated gate are closed, and first resists
Entrance Electrically operated gate and the outlet Electrically operated gate of fuel feed filter screen are opened, and the second fire resistant oil supplies the entrance Electrically operated gate of oil screen and goes out
Mouth Electrically operated gate is closed, and fire resistant oil fuel feeding Electrically operated gate is closed, and high pressure accumulator entrance Electrically operated gate is opened；And high pressure accumulator row
Dirty Electrically operated gate is closed.
Thermal power plant the most according to claim 7 high pressure fireresistant oil system on off control method, it is characterised in that described thermoelectricity
Factory's high pressure fireresistant oil system on off control method also includes:
Judge whether that steam turbine and steam feed pump driving steam turbine trip the most；
If described steam turbine and steam feed pump driving steam turbine trip the most, it may be judged whether fire resistant oil pump interlocking has dropped out,
And recirculation pump interlocking has dropped out.
Thermal power plant the most according to claim 6 high pressure fireresistant oil system on off control method, it is characterised in that described
One preset pressure value is 0.1MPa, and the second preset pressure value is 12MPa, and described preset temperature is 20 DEG C.
11. thermal power plant according to claim 8 high pressure fireresistant oil system on off control methods, it is characterised in that described pre-
If liquid level is 500mm, described 3rd preset pressure value is 10MPa.
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| CN201610860387.7A CN106237684B (en) | 2016-09-28 | 2016-09-28 | A kind of thermal power plant's high pressure fireresistant oil system and its start-up and shut-down control method |
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| CN201610860387.7A CN106237684B (en) | 2016-09-28 | 2016-09-28 | A kind of thermal power plant's high pressure fireresistant oil system and its start-up and shut-down control method |
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