CN209444378U - A kind of expansion power generator system starting control stage by stage - Google Patents
A kind of expansion power generator system starting control stage by stage Download PDFInfo
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- CN209444378U CN209444378U CN201920020245.9U CN201920020245U CN209444378U CN 209444378 U CN209444378 U CN 209444378U CN 201920020245 U CN201920020245 U CN 201920020245U CN 209444378 U CN209444378 U CN 209444378U
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Abstract
The utility model discloses the expansion power generator systems that one kind starts control stage by stage, including high pressure tank, the electronic throttle of air inlet, regulating valve one, regulating valve two, jet flow device, quadruple expansion engine and generator, the electronic throttle of air inlet, regulating valve one, jet flow device and regulating valve two are sequentially installed on the outlet conduit of high pressure tank；Regulating valve two is connected to quadruple expansion engine, generator is connected with expanding machine by transmission shaft, the outlet conduit of quadruple expansion engine is divided into branch one and branch two, one pipeline of branch is connected to the air entry of jet flow device, electrically operated valve one is installed on one pipeline of branch, two pipeline of branch is connected in atmosphere, is equipped with electrically operated valve two on two pipeline of branch.The utility model realizes the decoupling of parameter request and compressed-air energy-storage system parameter characteristic when expansion power generator power generation starts, and raising starting control precision is expanded with the unit be conducive in starting.
Description
Technical field
The utility model belongs to expansion power generator control equipment technical field, and in particular to a kind of to start control stage by stage
Expansion power generator system.
Background technique
Compressed-air energy storage is to start compressed-air energy storage process, consumption electrical energy drive compression in power grid electric surplus
Machine operation, air enter compressed air reservoir after multi-stage compression；When power grid electric is in short supply, start expanding machine power generation process:
Pressure-air in air accumulator enters expanding machine and carries out multiple expansion, driving expanding machine rotation, driven generator power generation.
Expansion power generator starting power generation is divided into two processes, is starting red switch process first, expansion power generator is from static shape
After state reaches rated speed, into on-load power generation process, inlet condition is needed slowly to be promoted by lower, improves starting control essence
Spend and be conducive to the expansion of unit in starting.And reservoir pressure is one and gradually decreases in compressed-air energy storage generator operation
Process, reservoir pressure is maximum before starting, and the parameter request to generate electricity when starting with expansion power generator contradicts.Therefore one is needed
Kind technology realizes that requirement when expansion power generator power generation starting and the decoupling of compressed-air energy-storage system pressure characteristic, realization are swollen
The starting stage by stage of swollen generator controls.
Summary of the invention
The technical issues of the utility model solves is: a kind of expansion power generator system starting control stage by stage is provided, with
Solve above-mentioned the technical problems existing in the prior art.
The technical solution that the utility model is taken are as follows: one kind starts the expansion power generator system of control, including height stage by stage
Air accumulator, the electronic throttle of air inlet, regulating valve one, regulating valve two, jet flow device, quadruple expansion engine and generator are pressed, it is high
It presses and is sequentially installed with the electronic throttle of air inlet, regulating valve one, jet flow device and regulating valve two on the outlet conduit of air accumulator；
Regulating valve two is connected to quadruple expansion engine, and generator is connected with expanding machine by transmission shaft, the outlet conduit point of quadruple expansion engine
For branch one and branch two, one pipeline of branch is connected to the air entry of jet flow device, is equipped on one pipeline of branch electronic
Valve one, two pipeline of branch are connected in atmosphere, are equipped with electrically operated valve two on two pipeline of branch.
Preferably, above-mentioned jet flow device includes main jet, mixing chamber, trunnion, diffuser pipe and voltage-stabiliser tube, work spray
Mouth is mounted on mixing chamber left end, and mixing chamber right end is provided with trunnion and lower end is provided with the air entry being connected to branch one, trunnion
Right end is provided with diffuser pipe left small and right large, and diffuser pipe right end is connected with the voltage-stabiliser tube of straight tube.
Preferably, the metal filter screen of 80-200 mesh is provided at above-mentioned jet flow device air entry.
Preferably, entrance is provided at above-mentioned jet flow device air entry flutter board-like non-return valve.
The utility model has the beneficial effects that compared with prior art, the utility model will enter the pressure in expansion power generator
Contracting air is transformed to low-pressure big flow by the small flow of high pressure, and by adjusting regulating valve one, the realization of regulating valve two to red switch
With the parameter regulation of on-load process, realize that the parameter request and compressed-air energy-storage system when expansion power generator power generation starting are joined
The decoupling of number characteristic improves starting control precision and is conducive to the unit expansion in starting.
Detailed description of the invention
Fig. 1 is the system diagram of the utility model；
Fig. 2 is jet flow apparatus structure schematic diagram.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment 1: as Figure 1-Figure 2, a kind of expansion power generator system starting control stage by stage, including high-pressure gas
Tank 1, the electronic throttle 2 of air inlet, regulating valve 1, regulating valve 24, jet flow device 5, quadruple expansion engine 6 and generator 7 are high
It presses and is sequentially installed with the electronic throttle 2 of air inlet, regulating valve 1, jet flow device 5 on the outlet conduit of air accumulator 1 and adjusts
Valve 24；Regulating valve 24 is connected to quadruple expansion engine 6, and generator 7 is connected with expanding machine 6 by transmission shaft, quadruple expansion engine 6
Outlet conduit is divided into branch 1 and branch 2 11, and one 10 pipeline of branch is connected to the air entry of jet flow device 5, branch one
Electrically operated valve 1 is installed, the exhaust of quadruple expansion engine 6 can be used as jet after the electrically operated valve 1 of air inlet on 10 pipelines
The drainage medium of fluidic device 4 recycles cleaning compressed air with pressure, improves system effectiveness, and 2 11 pipeline of branch is connected to greatly
In gas, electrically operated valve 29 is installed on 2 11 pipeline of branch, electronic 2 input end of throttle of air inlet goes out with compressed air reservoir 1
The connection of mouth end, 5 input end of jet flow device are connect with one 3 outlet end of regulating valve.
Preferably, above-mentioned jet flow device 5 includes main jet 501, mixing chamber 502, trunnion 503,504 and of diffuser pipe
Voltage-stabiliser tube 505, main jet 501 are mounted on 502 left end of mixing chamber, and 502 right end of mixing chamber is provided with trunnion 503 and lower end setting
There is the air entry being connected to branch 1, trunnion right end is provided with diffuser pipe left small and right large, and diffuser pipe right end is connected with straight tube
Voltage-stabiliser tube, inhale characteristic using the volume of jet flow device, make to generate vacuum and suck the air in environment in air suction chamber,
The compressed air entered in expansion power generator is transformed to low-pressure big flow by the small flow of high pressure, main jet 1 needs can
10MPa pressure is born, remaining part need to be able to bear 3.5MPa pressure.
Gas source, only two states of completely open and close, machine are reliably cut off in the effect of the electronic throttle 2 of air inlet when being to ensure that shutdown
It is in fully open position when group starting, is closed rapidly after receiving stopping signal, unit adjusts complete by regulating valve 1 and regulating valve 24
At.
Preferably, the metal filter screen 506 of 80-200 mesh, filter screen are provided at above-mentioned 5 air entry of jet flow device
Prevent the impurity of bulky grain from entering fluidic device.
When system works, pressure-air is stored in air storage tank 1, and regulating valve 1 is pressed after adjusting jet flow device 5
Power, regulating valve 24 are adjusted into 6 flow of quadruple expansion engine, and compressed air expansion work drives generator 7 to generate electricity；
The exhaust of quadruple expansion engine 6 can as the drainage medium of jet flow device 4, (it is good what has after air inlet electrically operated valve 1
Place), atmosphere can also be directly discharged by electrically operated valve 29.
Preferably, entrance being provided at above-mentioned 5 air entry of jet flow device and flutterring board-like non-return valve 507, entrance is flutterred board-like
Non-return valve 507 is rotatably connected to that air entry can be sealed in circular air entry and after closing by shaft, being capable of standard-sized sheet
Quan Guan, air can only be by entering outside device, when preventing low compressed air inlet pressure, jet stream effect difference, and air is from penetrating after mixing
It flows and is flowed out at device portal.
Embodiment 2: one kind starting the control method of the expansion power generator system of control, this method are as follows: this method stage by stage
Are as follows: when unit starting, the electronic throttle 2 of full admission, regulating valve 1 is set as automatically controlling, and control target is fluidic device
Air pressure afterwards is controlled by with the next stage, Pd be expansion power generator with rated load when rated pressure:
1) the red switch stage, pressure is 30%Pd after jet flow device is arranged；
2) pressure is 80%Pd after jet flow device and 60% load stage of mesh belt, is arranged；
3) 60% load to 100% load stage, pressure is 100%Pd after jet flow device is arranged；
4) it operates normally and participates in the peak load regulation network frequency modulation operation phase, pressure is 110%Pd after jet flow device is arranged；
5) the red switch stage controls generating unit speed by regulating valve 25, controls unit by regulating valve 25 after grid-connected on-load and exports
Power.
Example above description is only a specific implementation of the present invention, the protection scope of the utility model not office
It is limited to this.Be familiar with the those skilled in the art within the technical scope disclosed by the utility model, can easily find variation or
Alternative, these should be covered within the scope of the utility model.For this purpose, the protection scope of the utility model should be with
Subject to the scope of protection of the claims.
Claims (4)
1. the expansion power generator system that one kind starts control stage by stage, it is characterised in that: including high pressure tank (1), air inlet electricity
Dynamic throttle (2), regulating valve one (3), regulating valve two (4), jet flow device (5), quadruple expansion engine (6) and generator (7),
The electronic throttle of air inlet (2), regulating valve one (3), jet flow device are sequentially installed on the outlet conduit of high pressure tank (1)
(5) and regulating valve two (4)；Regulating valve two (4) is connected to quadruple expansion engine (6), and generator (7) and expanding machine (6) pass through transmission
Axis is connected, and the outlet conduit of quadruple expansion engine (6) is divided into branch one (10) and branch two (11), and branch one (10) pipeline is connected to
The air entry of jet flow device (5), electrically operated valve one (8) is equipped on branch one (10) pipeline, and branch two (11) pipeline connects
It is connected in atmosphere, electrically operated valve two (9) is installed on branch two (11) pipeline.
2. the expansion power generator system that one kind according to claim 1 starts control stage by stage, it is characterised in that: jet is penetrated
Flowing device (5) includes main jet (501), mixing chamber (502), trunnion (503), diffuser pipe (504) and voltage-stabiliser tube (505), work
Make nozzle (501) and be mounted on mixing chamber (502) left end, mixing chamber (502) right end is provided with trunnion (503) and lower end be provided with
The air entry of branch one (10) connection, trunnion (503) right end are provided with diffuser pipe left small and right large (504), and diffuser pipe (504) is right
End is connected with the voltage-stabiliser tube (505) of straight tube.
3. the expansion power generator system that one kind according to claim 1 starts control stage by stage, it is characterised in that: jet is penetrated
The metal filter screen (506) of 80-200 mesh is provided at stream device (5) air entry.
4. the expansion power generator system that one kind according to claim 1 starts control stage by stage, it is characterised in that: jet is penetrated
Entrance, which is provided with, at stream device (5) air entry flutters board-like non-return valve (507).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020245.9U CN209444378U (en) | 2019-01-07 | 2019-01-07 | A kind of expansion power generator system starting control stage by stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020245.9U CN209444378U (en) | 2019-01-07 | 2019-01-07 | A kind of expansion power generator system starting control stage by stage |
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| Publication Number | Publication Date |
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| CN209444378U true CN209444378U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920020245.9U Active CN209444378U (en) | 2019-01-07 | 2019-01-07 | A kind of expansion power generator system starting control stage by stage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519231A (en) * | 2019-01-07 | 2019-03-26 | 贵州电网有限责任公司 | A kind of expansion power generator system and method starting control stage by stage |
-
2019
- 2019-01-07 CN CN201920020245.9U patent/CN209444378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519231A (en) * | 2019-01-07 | 2019-03-26 | 贵州电网有限责任公司 | A kind of expansion power generator system and method starting control stage by stage |
| CN109519231B (en) * | 2019-01-07 | 2024-03-26 | 贵州电网有限责任公司 | Expansion generator system and method controlled by staged starting |
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