CN206152449U - Anti fuel oil system of thermal power plant's high pressure - Google Patents
Anti fuel oil system of thermal power plant's high pressure Download PDFInfo
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- CN206152449U CN206152449U CN201621090954.7U CN201621090954U CN206152449U CN 206152449 U CN206152449 U CN 206152449U CN 201621090954 U CN201621090954 U CN 201621090954U CN 206152449 U CN206152449 U CN 206152449U
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- oil
- fire resistant
- resistant oil
- fire
- pump
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 377
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 349
- 230000001172 regenerating effect Effects 0.000 claims abstract description 50
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000002828 fuel tank Substances 0.000 claims description 50
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Feeding And Controlling Fuel (AREA)
Abstract
The utility model provides an anti fuel oil system of thermal power plant's high pressure, this system includes: fire resistant oil case, first fire resistant oil pump, second fire resistant oil pump, first fire resistant oil recirculation pump, second fire resistant oil recirculation pump, a regenerating unit, the 2nd regenerating unit, first cooler, second cooler, electric heater, high -pressure accumulator, first fire resistant oil supply oil screen, second fire resistant oil to supply oil screen, fire resistant oil pump recycling surge damping valve, the female pipe electrically operated gate of regenerating unit entry, the female pipe electrically operated gate of cooler entry, high -pressure accumulator entry electrically operated gate and fire resistant oil fuel feeding electrically operated gate. Utilize the utility model discloses, in the time of can changing suddenly at system user's oil usage, the work that plays a buffering is used for keeping the stability of system pressure, can get rid of impurity and the cooling fire resistant oil of fire resistant oil pump sending in producing oil. In addition, utilize the utility model discloses can prevent local overheat under the oily quiescent condition to when the oil temperature when low with the heating of oil temperature to more than 20 DEG C, the start -up creation condition of giving the fire resistant oil pump.
Description
Technical field
The utility model is, with regard to thermal power plant's high pressure fireresistant oil technology, to be characterized in that with regard to a kind of thermal power plant's high pressure fireresistant oil system
System.
Background technology
The major function of thermal power plant's high pressure fireresistant oil system is the electricity to steam turbine and steam feed pump driving steam turbine
Hydraulic regulating system provides power oil.Fire-resistant oil pressure is higher, after being boosted by fire resistant oil pump, enters each through servo valve or magnetic valve
Individual servomotor piston chamber, is instructed by servo valve and magnetic valve, controls the aperture of servomotor stroke, i.e. control valve.But,
Existing thermal power plant's high pressure fireresistant oil system is under full cut-off state, it is impossible to realize the automatic of high pressure fireresistant oil system；Also without
Method realizes being automatically stopped for high pressure fireresistant oil system under high pressure fireresistant oil system running state；Also, when high pressure fireresistant oil system
When system startup program is carried out to a certain step, if the step sequence condition is unsatisfactory for, it is impossible to proceed startup program.Also, work as and be
During the use oil mass suddenly change of system user, existing thermal power plant's high pressure fireresistant oil system is unable to maintain that stablizing for system pressure, and
And the temperature of fire resistant oil cannot be automatically maintained, cause fire resistant oil pump normally to start.
Utility model content
To solve above-mentioned technical problem, on the one hand the utility model provides a kind of thermal power plant's high pressure fireresistant oil system, institute
Stating thermal power plant's high pressure fireresistant oil system includes：Fire-resistant fuel tank, the first fire resistant oil pump, the second fire resistant oil pump, the first fire resistant oil are followed again
Ring pump, the second fire resistant oil recirculation pump, the first regenerating unit, the second regenerating unit, the first cooler, the second cooler, electricity add
Hot device, high pressure accumulator, the first fire resistant oil are for oil screen, the second fire resistant oil for oil screen, fire resistant oil pump recycling pressure maintaining valve, again
Generating apparatus entrance main pipe electrically operated gate, cooler entrance main pipe electrically operated gate, high pressure accumulator entrance electrically operated gate and fire resistant oil fuel feeding electricity
Dynamic door；
The fire-resistant fuel tank is used to store fire resistant oil, and receives the oil return of Anti-fuel Oil System user；In the fire-resistant fuel tank
In be provided with the electric heater, for heating to fire resistant oil；
Described is sequentially provided with pipeline between the outlet at bottom and fire resistant oil fuel feeding electrically operated gate of the fire-resistant fuel tank
One fire resistant oil pump and the first fire resistant oil supply oil screen；Second fire resistant oil pump is connected in parallel with the first fire resistant oil pump, first
The entrance of the entrance of fire resistant oil pump and the second fire resistant oil pump is respectively equipped with entrance electrically operated gate, in the outlet and of the first fire resistant oil pump
The outlet of two fire resistant oil pumps is respectively equipped with outlet electrically operated gate；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 for the entrance of oil screen for the entrance and the second fire resistant oil of oil screen in the first fire resistant oil electronic
Door, the first fire resistant oil for oil screen outlet and the second fire resistant oil be respectively equipped with outlet non-return door for the outlet of oil screen；
The fire resistant oil is provided with pipeline between the upper outlet and fire resistant oil pump outlet main pipe of the fire-resistant fuel tank
Pump recycles pressure maintaining valve；
Outlet of the high pressure accumulator by pipeline and fire resistant oil for oil screen is connected, the high pressure accumulator with resist
Pipeline between fuel feed filter screen is provided with high pressure accumulator entrance electrically operated gate；
Set successively on pipeline between another outlet at bottom of the fire-resistant fuel tank and a upper entrance of fire-resistant fuel tank
There are the first fire resistant oil recirculation pump, regenerating unit entrance main pipe electrically operated gate and the first regenerating unit；Second fire resistant oil
Recirculation pump is connected in parallel with the first fire resistant oil recirculation pump, the first fire resistant oil recirculation pump entrance and the second fire resistant oil again
The entrance of circulating pump is respectively equipped with entrance electrically operated gate, the outlet and the second fire resistant oil recirculation pump in the first fire resistant oil recirculation pump
Outlet be respectively equipped with outlet non-return door；Second regenerating unit is connected in parallel with the first regenerating unit, in the first regeneration dress
The entrance put and the entrance of the second regenerating unit are respectively equipped with entrance electrically operated gate, in the outlet and the second regeneration of the first regenerating unit
The outlet of device is respectively equipped with outlet electrically operated gate；
On pipeline between another upper entrance of the outlet main pipe to the fire-resistant fuel tank of fire resistant oil recirculation pump according to
It is secondary to be provided with the cooler entrance main pipe electrically operated gate and the first cooler；Second cooler is in parallel with the first cooler even
Connect, entrance electrically operated gate is respectively equipped with the entrance of the first cooler and the entrance of the second cooler, in the outlet of the first cooler
And second the outlet of cooler be respectively equipped with outlet electrically operated gate.
In one embodiment, the fire resistant oil all the way in the fire-resistant fuel tank sequentially pass through 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 the fire-resistant fuel tank flows into the first fire resistant oil recirculation pump
And/or the second fire resistant oil recirculation pump, beaten and followed by the first fire resistant oil recirculation pump and/or the second fire resistant oil recirculation pump
Ring, a part by returning the fire-resistant fuel tank after first regenerating unit and/or the purification of the second regenerating unit, another part by
First cooler and/or the second cooler return the fire-resistant fuel tank after being cooled down.
In one embodiment, thermal power plant's high pressure fireresistant oil system also includes：High pressure accumulator blowdown electrically operated gate, connection
On pipeline between the high pressure accumulator entrance electrically operated gate and the high pressure accumulator, for entering to the high pressure accumulator
Row automatic pollution discharge.
In one embodiment, thermal power plant's high pressure fireresistant oil system also includes：The control of high pressure fireresistant oil system program is patrolled
Collect operation button, fire resistant oil pump block push button and recirculation pump block push button.
The beneficial effects of the utility model are：The utility model embodiment provide thermal power plant's high pressure fireresistant oil system and
Its on off control method can realize opening automatically for high pressure fireresistant oil system under thermal power plant's high pressure fireresistant oil system full cut-off state
It is dynamic；Under thermal power plant's high pressure fireresistant oil system running state, being automatically stopped for high pressure fireresistant oil system is realized；And take into account and think
Judge, it is possible to achieve the leapfrog operation of thermal power plant's high pressure fireresistant oil system program control logic, when a certain step of programed logic
Service condition for satisfaction cause walk sequence cannot carry out when, can artificially Rule of judgment whether can ignore and operate leapfrog move
Make, continue the operation of programed logic and finish until starting.Using the utility model, can be unexpected with oil mass in system user
During change, play a part of a buffering to maintain stablizing for system pressure；Removable fire resistant oil pump send impurity in oil with
And cooling fire resistant oil.In addition, hot-spot under oily inactive state can be prevented using the utility model, and when oil temperature is too low by oil
Temperature is heated to more than 20 DEG C, creates conditions to the startup of fire resistant oil pump.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of the utility model embodiment thermal power plant high pressure fireresistant oil system；
Fig. 2 is the starting step flow chart of the utility model embodiment thermal power plant high pressure fireresistant oil system；
Fig. 3 is the stopping flow chart of steps of the utility model embodiment thermal power plant high pressure fireresistant oil system.
Drawing reference numeral：
1. the fire resistant oil pump outlet non-return door of the first fire resistant oil pump entrance electrically operated gate 2. first
3. the fire resistant oil pump outlet non-return door of the second fire resistant oil pump entrance electrically operated gate 4. second
5. the first fire resistant oil exports electrically operated gate for the fire resistant oil of oil screen entrance electrically operated gate 6. first for oil screen
7. the second fire resistant oil exports electrically operated gate for the fire resistant oil of oil screen entrance electrically operated gate 8. second for oil screen
9. the high pressure accumulator entrance electrically operated gate of fire resistant oil fuel feeding electrically operated gate 10.
The fire resistant oil recirculation pump entrance electrically operated gate of 11. high pressure accumulator blowdown electrically operated gate 12. first
The fire resistant oil recirculation pump entrance electrically operated gate of 13. first fire resistant oil recirculation pump outlet non-return door 14. second
The cooler entrance main pipe electrically operated gate of 15. second fire resistant oil recirculation pump outlet non-return door 16.
The cooler outlet electrically operated gate of 17. first cooler entrance electrically operated gate 18. first
The cooler outlet electrically operated gate of 19. second cooler entrance electrically operated gate 20. second
The regenerating unit entrance electrically operated gate of 21. regenerating unit entrance main pipe electrically operated gate 22. first
23. first regenerating units export the regenerating unit entrance electrically operated gate of electrically operated gate 24. second
25. second regenerating units outlet electrically operated gate 26. fire resistant oil pump recycling pressure maintaining valve
The fire resistant oil pump of 27. first fire resistant oil pump 28. second
The fire resistant oil recirculation pump of 29. first fire resistant oil recirculation pump 30. second
The cooler of 31. first cooler 32. second
The regenerating unit of 33. first regenerating unit 34. second
35. first fire resistant oils supply oil screen for the fire resistant oil of oil screen 36. second
The fire-resistant fuel tank of 37. fire-resistant fuel tank electric heater 38.
39. high pressure accumulatorsRepresent pressure-measuring-point
Represent temperature pointRepresent liquid level measuring point
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
As shown in figure 1, the utility model embodiment provides a kind of thermal power plant's high pressure fireresistant oil system, the system is included：
Fire-resistant fuel tank 38, the first fire resistant oil pump 27, the second fire resistant oil pump 28, the first fire resistant oil recirculation pump 29, the second fire resistant oil are followed again
Ring pump 30, the first regenerating unit 33, the second regenerating unit 34, the first cooler 31, the second cooler 32, electric heater 37, height
Pressure accumulator 39, the first fire resistant oil for oil screen 35, the second fire resistant oil for oil screen 36, fire resistant oil pump recycling pressure maintaining valve 26,
Regenerating unit entrance main pipe electrically operated gate 21, cooler entrance main pipe electrically operated gate 16, high pressure accumulator entrance electrically operated gate 10 and fire-resistant
Oily fuel feeding electrically operated gate 9.
Fire-resistant fuel tank 38 is used to store fire resistant oil, and receives the oil return of Anti-fuel Oil System user.Set in fire-resistant fuel tank 38
There is electric heater 37, heated for resisting the fire resistant oil in fuel tank 38.
The first fire-resistant is sequentially provided with pipeline between the outlet at bottom and fire resistant oil fuel feeding electrically operated gate 9 of fire-resistant fuel tank 38
The fire resistant oil of oil pump 27 and first supplies oil screen 35.Second fire resistant oil pump 28 is connected in parallel with the first fire resistant oil pump 27, anti-first
The entrance of fuel pump 27 is provided with entrance electrically operated gate 1, and in the outlet of the first fire resistant oil pump outlet non-return door 2 is provided with.In the second fire-resistant
The entrance of oil pump 28 is provided with entrance electrically operated gate 3, and in the outlet of the second fire resistant oil pump 28 outlet non-return door 4 is provided with.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 in the first fire resistant oil
Entrance electrically operated gate 5 and outlet electrically operated gate 6 are not provided with, entrance is respectively equipped with for the entrance and exit of oil screen 36 in the second fire resistant oil
Electrically operated gate 7 and outlet electrically operated gate 8.
Fire resistant oil pump is provided with pipeline between the upper outlet and fire resistant oil pump outlet main pipe of fire-resistant fuel tank 38 to follow again
Ring pressure maintaining valve 26.
Outlet of the high pressure accumulator 39 by pipeline with fire resistant oil for oil screen is connected, in high pressure accumulator 39 and fire resistant oil
High pressure accumulator entrance electrically operated gate 10 is provided with for the pipeline between oil screen.
Set successively on pipeline between another outlet at bottom of fire-resistant fuel tank 38 and a upper entrance of fire-resistant fuel tank 38
There are the first fire resistant oil recirculation pump 29, regenerating unit entrance main 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 the entrance and the second fire-resistant of the first fire resistant oil recirculation pump 29
The entrance of oily 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 another upper entrance of the outlet main pipe to fire-resistant fuel tank 38 of fire resistant oil recirculation pump successively
It is provided with cooler entrance main pipe electrically operated gate 16 and the first cooler 31.Second cooler 32 is connected in parallel with the first cooler 31,
Entrance electrically operated gate 17 and 19 is respectively equipped with the entrance of the first cooler 31 and the porch of the second cooler 32, in the first cooling
The exit of the outlet of device 31 and the second cooler 32 is respectively equipped with outlet electrically operated gate 18 and 20.
As shown in figure 1, being additionally provided with other necessary pipes in the utility model embodiment thermal power plant high pressure fireresistant oil system
Road, valve and related thermal technology's measuring point etc..
In thermal power plant's high pressure fireresistant oil system that the utility model embodiment is provided, oil of the fire-resistant fuel tank 38 as system
Source reservoir, for receiving the oil return of Anti-fuel Oil System user, and it is each to deliver to system by the adherence pressure of fire resistant oil pump 27 or 28
Individual user.Fire resistant oil pump 27 generally adopts plunger displacement pump, and its outlet pressure is higher, and in fire resistant oil pump outlet main pipe spill valve is provided with
(i.e. fire resistant oil pump recycling pressure maintaining valve 26), system pressure can be controlled in 14MPa or so.High pressure accumulator 39 starts in system
Before be filled with nitrogen, pressure reaches 10MPa.After system start-up, when the use oil mass suddenly change of system user, high pressure accumulator
39 play a part of a buffering so as to maintain stablizing for system pressure.The oil that fire resistant oil pump 27 or 28 is sent is through filter (
One fire resistant oil supplies oil screen 36 for the fire resistant oil of oil screen 35 or second) removal of impurity is gone, then deliver to each user.First fire resistant oil is again
The effect of the fire resistant oil recirculation pump 30 of circulating pump 29 or second is that the oil in fire-resistant fuel tank 38 is beaten into circulation, part supply regeneration
Device 33 or 34 is purified, and another part supply cooler 31 or 32 is cooled down, and final oil return is back to fire-resistant fuel tank 38.
In addition, the electric heater 37 in fire-resistant fuel tank 38 is usually to use after fire resistant oil recirculation pump starts, prevent oil static
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,
Create conditions to the startup of fire resistant oil pump.
In one embodiment, the fire resistant oil all the way in fire-resistant fuel tank 38 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 supply oil screen 36), fire resistant oil fuel feeding electrically operated gate 9
Into Anti-fuel Oil System user.First fire resistant oil pump 27 is generally standby each other with the second fire resistant oil pump 28, but under certain condition,
Can also come into operation simultaneously.In the same manner, the first fire resistant oil can also be each other for oil screen 36 for the fire resistant oil of oil screen 35 and second
It is standby, it is also possible to while coming into operation.
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 is followed again
Ring pump 30), circulation is beaten by the first fire resistant oil recirculation pump 29 (or second fire resistant oil recirculation pump 30), a part by first again
Return fire-resistant fuel tank 38 after generating apparatus 33 (or second regenerating unit 34) purification, another part by the first cooler 31 (or
Second cooler 32) cooled down after return fire-resistant fuel tank 38.
Normally, the thermal power plant's high pressure fireresistant oil system in the utility model embodiment also includes high pressure accumulator blowdown electricity
Dynamic door 11, it is connected on the pipeline between high pressure accumulator entrance electrically operated gate 10 and high pressure accumulator 39, for moving back in system
Go out and automatic pollution discharge is carried out to high pressure accumulator 39 when running, need to close high pressure accumulator entrance electrically operated gate 10 before blowdown starts
Close.
Also include three buttons in above-mentioned power plant high pressure fireresistant oil system：High pressure fireresistant oil system program control logic
Operation button A1, fire resistant oil pump block push button A2 and recirculation pump block push button A3.
Using fire resistant oil pump block push button A2, the first fire resistant oil pump 27 and the input of the second fire resistant oil pump 28 can be set automatically
Standby interlocking.After interlocking input, if wherein one unit trip, another equipment can interlocked startup rapidly, maintenance system is just
Often operation.In the same manner, can automatically by the first fire resistant oil recirculation pump 29 and the second fire resistant oil using recirculation pump block push button A3
The used device of recirculation pump 30 is interlocked, and when wherein one recirculation pump trips, another recirculation pump can rapidly interlock and open
Dynamic, maintenance system is normally run.
Fig. 2 is the starting step flow process of the on off control method of the utility model embodiment thermal power plant high pressure fireresistant oil system
Figure, as shown in Fig. 2 the startup control method includes：
Step S101, judge whether 1. the first fire resistant oil pump 27 the fire resistant oil pump 28 of entrance electrically operated gate 1 and second entrance
2. and the fire resistant oil recirculation pump 30 of entrance electrically operated gate 12 and second of the first fire resistant oil recirculation pump 29 enters electrically operated gate 3 is opened,
Mouthful electrically operated gate 14 is opened, 3. and regenerating unit entrance main pipe electrically operated gate is opened, 4. and the first regenerating unit 33 entrance electrically operated gate
22 and outlet electrically operated gate 23 open, 5. and the second regenerating unit 34 entrance electrically operated gate 24 and outlet electrically operated gate 25 close, 6. and
Cooler entrance main pipe electrically operated gate 16 is closed, 7. and the first cooler 31 entrance electrically operated gate 17 and outlet electrically operated gate 18 open,
8. and the entrance electrically operated gate 19 and outlet electrically operated gate 20 of the second cooler 32 is closed, 9. and the first fire resistant oil entering for oil screen 35
Mouth electrically operated gate 5 and outlet electrically operated gate 6 are opened,And second fire resistant oil for oil screen 36 entrance electrically operated gate 7 and outlet electrically operated gate
8 close,And fire resistant oil fuel feeding electrically operated gate 9 is closed,And high pressure accumulator entrance electrically operated gate 10 is opened；And high-voltage energy-storage
Device blowdown electrically operated gate 11 is closed.If having any one condition to be unsatisfactory in above-mentioned 13 conditions, or there are multiple conditions 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 finger of the first fire resistant oil recirculation pump entrance electrically operated gate 12 and the second fire resistant oil recirculation pump entrance electrically operated gate 14
Order, and the instruction of regenerating unit entrance main pipe electrically operated gate 21 is opened, and open the first regenerating unit entrance electrically operated gate 22 and outlet
The instruction of electrically operated gate 23, and the instruction of the second regenerating unit entrance electrically operated gate 24 and outlet electrically operated gate 25 is closed, and close cooling
The instruction of device entrance main pipe electrically operated gate 16, and the instruction of the first cooler entrance electrically operated gate 17 and outlet electrically operated gate 18 is opened, and
The instruction of the second cooler entrance electrically operated gate 19 and outlet electrically operated gate 20 is closed, and opens the first fire resistant oil for oil screen entrance electricity
The instruction of dynamic door 5 and outlet electrically operated gate 6, and the second fire resistant oil is closed 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 the unlatching is originally opened in step S101,
The open command received in step S102 can then be ignored；If the electrically operated gate that should be closed in step S101 is originally closed
Close, then can ignore the out code received in step S102, similarly hereinafter.If above-mentioned 13 conditions all meet, 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
It is not actuated, send the instruction (step S104) for 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 recirculation pump outlet main-piping pressure whether more than the first preset pressure value.If recirculation pump
Outlet main-piping pressure is more than the first preset pressure value, carries out step S106.
In one embodiment, the desirable 0.1MPa of the first above-mentioned preset pressure value.
Step S106, judge whether to put into recirculation pump interlocking.If recirculation pump interlocking does not put into, input is sent again
Circulating pump interlocking instruction (step S107).If recirculation pump interlocking puts into, step S108 is carried out.
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 is less than preset temperature, then send the instruction (step S109) for 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, step S110 is carried out.
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 quit work, or the first fire resistant oil pump 27 is not actuated and electric heater 37 not
Quit work, then send the instruction for 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 fire resistant oil pump outlet main-piping pressure whether more than the second preset pressure value.If fire resistant oil pump
Outlet main-piping pressure is 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 put into, input is sent anti-
The instruction (step S114) of fuel pump interlocking.If fire resistant oil pump interlocking puts into, step S115 is carried out.
Step S115, judge whether cooler entrance main pipe electrically operated gate 16 is opened.If cooler entrance main pipe electrically operated gate
16 do not open, and send the instruction (step S116) for opening cooler entrance main pipe electrically operated gate.
The purpose of step S103～step S107 is to start recirculation pump and judge whether it is exerted oneself normal.Step S108～
Step S109 is used to judge whether the oil temperature in fire-resistant fuel tank 38 is more than 20 DEG C, if more than 20 DEG C, starting fire resistant oil pump, if little
In 20 DEG C, then start electric heater heating fire resistant oil, be to start fire resistant oil pump to prepare.Step S110～step S114 is used to open
Dynamic high pressure fireresistant oil pump, and judge whether it is exerted oneself normal.
In one embodiment, starting the enabled condition of step sequence is：1. the oil level in fire-resistant fuel tank 38 is higher than default 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
Pressure value is 10MPa.That is, before step S101 is carried out, the oil level that needs are prejudged in whether fire-resistant fuel tank 38 is higher than
Pressure in 500mm and high pressure accumulator 39 is more than 10MPa, in the case where the two conditions all meet, just allows to start.
Fig. 3 additionally provides a kind of on off control method of thermal power plant's high pressure fireresistant oil system for the utility model embodiment
Stop flow chart of steps, as shown in figure 3, the stopping step including：
Step S201, judge fire resistant oil pump interlock and recirculation pump interlocking whether all have dropped out.If fire resistant oil pump is interlocked
There is one not exit with recirculation pump interlocking, or two interlockings are not all exited, and send the instruction for exiting fire resistant oil pump interlocking
And exit recirculation pump interlocking instruction (step S202).If fire resistant oil pump interlocking has dropped out, and recirculation pump is interlocked also
Exit, carry out step S203.
Step S203, judge whether the first fire resistant oil pump 27 and the second fire resistant oil pump 28 are out of service.If first
Have in the fire resistant oil pump 28 of fire resistant oil pump 27 and second one it is not out of service, or the two is out of service, then send stopping fortune
The instruction of the first fire resistant oil pump of row 27 and the instruction (step S204) of the second fire resistant oil pump 28 out of service.If the first fire resistant oil
The fire resistant oil pump 28 of pump 27 and second is out of service, carries out step S205.
Step S205, judge whether the first fire resistant oil recirculation pump 29 and the second fire resistant oil recirculation pump 30 have stopped fortune
OK.If there is a pump not out of service in the first fire resistant oil recirculation pump 29 and the second fire resistant oil recirculation pump 30, or two
Person is not 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.
In one embodiment, the enabled condition of stopping step sequence is：With the utility model embodiment mesohigh Anti-fuel Oil System
The steam turbine and steam feed pump driving steam turbine of connection has tripped.That is, when above-mentioned steam turbine and steam feed pump drive
Just allow to stop when steam turbine trips.
On off control method shown in Fig. 2 and Fig. 3 is the utility model embodiment moderate heat high-pressure power plant Anti-fuel Oil System
Programed logic.Following functions can be realized using the programed logic：In thermal power plant's high pressure fireresistant oil system full cut-off shape
Under state, the automatic of high pressure fireresistant oil system is realized；Under thermal power plant's high pressure fireresistant oil system running state, realize that high pressure resists
Fuel system is automatically stopped；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 artificially judging, the condition can be ignored, and can manually carry out the operation that leapfrog action continues startup program, until high pressure resists
Fuel system startup is finished.
Each step of the on off control method shown in Fig. 2 and Fig. 3, first judge feedback whether receive, if receiving after
It is continuous to carry out next step；If do not received, receive etc. to be feedback.When due feedback signal is not received, programed logic
The step can be rested on, artificial operation is waited.Power plant operations staff can find the unreceived feedback signal of current operation step sequence, people
To judge whether unreceived feedback signal affects continuing executing with for program programed logic.If the feedback signal does not affect to work as
Front programed logic proceeds, and operations staff can operate leapfrog action to continue the execution of programed logic；If should
Feedback signal affects proceeding for present procedure control logic, then operations staff can be unsatisfied according to each for finding
Feedback signal, targetedly goes investigation problem, until receiving the 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, realize the automatic of high pressure fireresistant oil system；Under thermal power plant's high pressure fireresistant oil system running state, high pressure fire-resistant is realized
Oil system is automatically stopped.
Apply specific embodiment in the utility model to be set forth principle of the present utility model and embodiment, with
The explanation of upper embodiment is only intended to help and understands method of the present utility model and its core concept；Simultaneously for this area
Those skilled in the art, according to thought of the present utility model, will change in specific embodiments and applications, comprehensive
Upper described, this specification content should not be construed as to restriction of the present utility model.
Claims (5)
1. a kind of thermal power plant's high pressure fireresistant oil system, it is characterised in that thermal power plant's 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, the first fire resistant oil for oil screen,
Second fire resistant oil is for oil screen, fire resistant oil pump recycling pressure maintaining valve, regenerating unit entrance main pipe electrically operated gate, cooler entrance main pipe
Electrically operated gate, high pressure accumulator entrance electrically operated gate and fire resistant oil fuel feeding electrically operated gate；
The fire-resistant fuel tank is used to store fire resistant oil, and receives the oil return of Anti-fuel Oil System user；Set in the fire-resistant fuel tank
There is the electric heater, for heating to fire resistant oil；
It is sequentially provided with described first on pipeline between the outlet at bottom and fire resistant oil fuel feeding electrically operated gate of the fire-resistant fuel tank to resist
Fuel pump and the first fire resistant oil supply oil screen；Second fire resistant oil pump is connected in parallel with the first fire resistant oil pump, in the first fire-resistant
The entrance of the entrance of oil pump and the second fire resistant oil pump is respectively equipped with entrance electrically operated gate, in the outlet of the first fire resistant oil pump and second anti-
The outlet of fuel pump is respectively equipped with outlet non-return door；Second fire resistant oil is in parallel for oil screen with the first fire resistant oil for oil screen
Connection, entrance electrically operated gate is respectively equipped with the first fire resistant oil for the entrance and the second fire resistant oil of oil screen for the entrance of oil screen,
The first fire resistant oil for oil screen outlet and the second fire resistant oil be respectively equipped with outlet electrically operated gate for the outlet of oil screen；
The fire resistant oil pump is provided with pipeline between the upper outlet and fire resistant oil pump outlet main pipe of the fire-resistant fuel tank again
Circulation pressure maintaining valve；
Outlet of the high pressure accumulator by pipeline with fire resistant oil for oil screen is connected, in the high pressure accumulator and fire resistant oil
High pressure accumulator entrance electrically operated gate is provided with for the pipeline between oil screen；
Institute is sequentially provided with pipeline between another outlet at bottom of the fire-resistant fuel tank and a upper entrance of fire-resistant fuel tank
State the first fire resistant oil recirculation pump, regenerating unit entrance main pipe electrically operated gate and the first regenerating unit；Second fire resistant oil is followed again
Ring pump is connected in parallel with the first fire resistant oil recirculation pump, recycles in the entrance and the second fire resistant oil of the first fire resistant oil recirculation pump
The entrance of pump is respectively equipped with entrance electrically operated gate, in the outlet of the first fire resistant oil recirculation pump and going out for the second fire resistant oil recirculation pump
Mouth is respectively equipped with outlet non-return door；Second regenerating unit is connected in parallel with the first regenerating unit, in the first regenerating unit
The entrance of entrance and the second regenerating unit is respectively equipped with entrance electrically operated gate, the outlet and the second regenerating unit in the first regenerating unit
Outlet be respectively equipped with outlet electrically operated gate；
Set successively on pipeline between another upper entrance of the outlet main pipe to the fire-resistant fuel tank of fire resistant oil recirculation pump
There are the cooler entrance main pipe electrically operated gate and the first cooler；Second cooler is connected in parallel with the first cooler,
The entrance of the entrance of the first cooler and the second cooler is 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.
2. thermal power plant's high pressure fireresistant oil system according to claim 1, it is characterised in that in the fire-resistant fuel tank all the way
It is anti-for oil screen and/or second that fire resistant oil sequentially passes through first fire resistant oil pump and/or the second fire resistant oil pump, the first fire resistant oil
Fuel feed filter screen, fire resistant oil fuel feeding electrically operated gate enter Anti-fuel Oil System user.
3. thermal power plant's high pressure fireresistant oil system according to claim 2, it is characterised in that another in the fire-resistant fuel tank
Road fire resistant oil flows into the first fire resistant oil recirculation pump and/or the second fire resistant oil recirculation pump, by first fire resistant oil again
Circulating pump and/or the second fire resistant oil recirculation pump play circulation, and a part is by first regenerating unit and/or the second regenerating unit
The fire-resistant fuel tank is returned after purification, another part is returned after being cooled down by first cooler and/or the second cooler
The fire-resistant fuel tank.
4. thermal power plant's high pressure fireresistant oil system according to claim 1, it is characterised in that thermal power plant's high pressure fireresistant oil
System also includes：High pressure accumulator blowdown electrically operated gate, is connected to the high pressure accumulator entrance electrically operated gate and the high-voltage energy-storage
On pipeline between device, for carrying out automatic pollution discharge to the high pressure accumulator.
5. thermal power plant's high pressure fireresistant oil system according to claim 1, it is characterised in that thermal power plant's high pressure fireresistant oil
System also includes：High pressure fireresistant oil system program control logic operation button, fire resistant oil pump block push button and recirculation pump interlocking
Button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090954.7U CN206152449U (en) | 2016-09-28 | 2016-09-28 | Anti fuel oil system of thermal power plant's high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090954.7U CN206152449U (en) | 2016-09-28 | 2016-09-28 | Anti fuel oil system of thermal power plant's high pressure |
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| Publication Number | Publication Date |
|---|---|
| CN206152449U true CN206152449U (en) | 2017-05-10 |
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ID=58652358
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621090954.7U Active CN206152449U (en) | 2016-09-28 | 2016-09-28 | Anti fuel oil system of thermal power plant's high pressure |
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| Country | Link |
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| CN (1) | CN206152449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237684A (en) * | 2016-09-28 | 2016-12-21 | 华北电力科学研究院有限责任公司 | A kind of thermal power plant's high pressure fireresistant oil system and on off control method thereof |
| CN114687813A (en) * | 2022-03-31 | 2022-07-01 | 哈尔滨汽轮机厂有限责任公司 | Fuel tank resistant multifunctional auxiliary circuit assembly and control method of auxiliary circuit assembly |
-
2016
- 2016-09-28 CN CN201621090954.7U patent/CN206152449U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237684A (en) * | 2016-09-28 | 2016-12-21 | 华北电力科学研究院有限责任公司 | A kind of thermal power plant's high pressure fireresistant oil system and on off control method thereof |
| CN106237684B (en) * | 2016-09-28 | 2018-12-18 | 华北电力科学研究院有限责任公司 | A kind of thermal power plant's high pressure fireresistant oil system and its start-up and shut-down control method |
| CN114687813A (en) * | 2022-03-31 | 2022-07-01 | 哈尔滨汽轮机厂有限责任公司 | Fuel tank resistant multifunctional auxiliary circuit assembly and control method of auxiliary circuit assembly |
| CN114687813B (en) * | 2022-03-31 | 2023-09-29 | 哈尔滨汽轮机厂有限责任公司 | Multifunctional auxiliary circuit assembly for fuel tank and control method of auxiliary circuit assembly |
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