CN109973162A - A kind of compressed-air energy-storage system and method for multistage switching - Google Patents
A kind of compressed-air energy-storage system and method for multistage switching Download PDFInfo
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- CN109973162A CN109973162A CN201910382490.9A CN201910382490A CN109973162A CN 109973162 A CN109973162 A CN 109973162A CN 201910382490 A CN201910382490 A CN 201910382490A CN 109973162 A CN109973162 A CN 109973162A
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- Prior art keywords
- expanding machine
- valve
- bypass line
- electrically operated
- compressed
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/006—Auxiliaries or details not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
- F01K7/04—Control means specially adapted therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
Abstract
The invention discloses the compressed-air energy-storage systems and method of a kind of multistage switching, including high pressure tank, the electronic throttle of air inlet is sequentially installed on the outlet conduit of high pressure tank, regulating valve one, fixed jet flow device, regulating valve two and multiple expansion engine, generator is connected with multiple expansion engine by transmission shaft, multiple expansion engine includes chopped-off head expanding machine, middle multi-stage expanding machine and final stage expanding machine, the gas outlet pipeline of final stage expanding machine is divided into bypass line one and bypass line two, bypass line one is connected to the air entry of jet flow device, bypass line two is connected in atmosphere, the gas outlet pipeline of chopped-off head expanding machine and middle multi-stage expanding machine respectively not Tong Guo electrical valve one and electrical valve two be connected to bypass line one together.The present invention improves system effectiveness by switching the pump orifice gas source of fixed jet flow device according to the parameter request of compressed-air energy-storage system expansion power generator starting and normal course of operation.
Description
Technical field
The invention belongs to expansion power generator air inlets to control equipment technical field, and in particular to a kind of compression of multistage switching is empty
Gas energy storage system and method.
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, which starts, is added fixed jet flow device in regulating system, not only may be implemented by compressed air by
Small flow high pressure power is converted to big flow low-pressure, realizes the precise controlling during unit starting；Suction chamber can also be passed through
Other air is recycled in vacuum suction, improves unit efficiency.Since the effect of expansion power generator mainly cooperates electric system tune
It saves, operating condition changes greatly, is more in operation, it is therefore desirable to which a kind of technology, realization is according to expansion power generator power generation starting and normally
Parameter situation when operation switches the pump orifice gas source of jet flow device, effectively sky of the control into multiple expansion generator
Atmospheric pressure improves system effectiveness.
Summary of the invention
The technical problem to be solved by the present invention is the compressed-air energy-storage system and method for a kind of multistage switching are provided, with
Solve problems of the prior art.
The technical scheme adopted by the invention is as follows: a kind of compressed-air energy-storage system of multistage switching, including high pressure tank,
The electronic throttle of air inlet, regulating valve one, fixed jet flow device, regulating valve two, multiple expansion engine and generator, high-pressure gas
It is sequentially installed with the electronic throttle of air inlet, regulating valve one, fixed jet flow device and regulating valve two on the outlet conduit of tank, adjusts
Section valve two is connected to multiple expansion engine, and generator is connected with multiple expansion engine by transmission shaft, and multiple expansion engine includes that chopped-off head is swollen
Swollen machine, middle multi-stage expanding machine and final stage expanding machine, the exhaust outlet of every level-one expanding machine access next stage expanding machine air intake, end
The gas outlet pipeline of grade expanding machine is divided into bypass line one and bypass line two, and bypass line one is connected to jet flow device
Air entry is equipped with electrically operated valve three in bypass line one, and bypass line two is connected in atmosphere, is equipped in bypass line two
The gas outlet pipeline of electrically operated valve four, chopped-off head expanding machine and middle multi-stage expanding machine respectively Tong Guo electrical valve one and electrical valve
Door two is connected to bypass line one together.
Preferably, above-mentioned fixed jet flow device includes main jet, mixing chamber, trunnion, diffuser pipe and voltage-stabiliser tube, work
It is mounted on mixing chamber left end as nozzle, mixing chamber right end is provided with trunnion and lower end is provided with the air-breathing being connected to bypass line one
Mouthful, 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, entrance is installed in above-mentioned air entry and flutters board-like non-return valve.
Preferably, the metal filter screen of 80-200 mesh is provided at above-mentioned air entry.
A kind of adjusting method of the compressed-air energy-storage system of multistage switching, this method are as follows: chopped-off head expansion is opened in operation
Machine is vented electrically operated valve one, closes all middle multi-stage expander exhaust gas electrically operated valves two and final stage expander exhaust gas electrically operated valve
Three, fixed jet flow device suction gas source switching is supplied by chopped-off head expander exhaust gas.
A kind of adjusting method of the compressed-air energy-storage system of multistage switching, this method are as follows: or opened in operation intermediate more
Certain level-one expander exhaust gas electrically operated valve two of grade expanding machine, the exhaust electrically operated gate for closing other grade of expanding machine, chopped-off head expanding machine
It is vented electrically operated valve one and final stage expander exhaust gas electrically operated valve three, by fixed jet flow device suction gas source switching in
Between multiple expansion engine certain level-one expander exhaust gas supply.
A kind of adjusting method of the compressed-air energy-storage system of multistage switching, this method are as follows: final stage expansion is opened in operation
Machine is vented electrically operated valve three, closes chopped-off head expander exhaust gas electrically operated valve one, all middle multi-stage expander exhaust gas electrically operated valves
Two, row's atmosphere electrically operated valve four of final stage expanding machine is supplied fixed jet flow device suction gas source switching by final stage expanding machine
It gives.
Beneficial effects of the present invention: compared with prior art, the present invention connects different gas sources using air entry and adjusts
Section passes through the fixed spray of switching according to the parameter request of compressed-air energy-storage system expansion power generator starting and normal course of operation
The pump orifice gas source of gas fluidic device improves system effectiveness.
Detailed description of the invention
Fig. 1 is system diagram of the invention；
Fig. 2 is fixed jet flow apparatus structure schematic diagram.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment 1: as shown in Figs. 1-2, a kind of compressed-air energy-storage system of multistage switching, including high pressure tank 1, into
Pneumoelectric moves throttle 2, regulating valve 1, fixed jet flow device 4, regulating valve 25, multiple expansion engine 6 and generator 7, high pressure
It is sequentially installed with the electronic throttle 2 of air inlet, regulating valve 1, fixed jet flow device 4 on the outlet conduit of air accumulator 1 and adjusts
Valve 25 is saved, regulating valve 25 is connected to multiple expansion engine 6, and generator 7 is connected with multiple expansion engine 6 by transmission shaft, multistage swollen
Swollen machine 6 includes chopped-off head expanding machine 601, middle multi-stage expanding machine 602 and final stage expanding machine 603, the exhaust outlet of every level-one expanding machine
Next stage expanding machine air intake is accessed, the gas outlet pipeline of final stage expanding machine 603 is divided into bypass line 1 and bypass line two
13, bypass line 1 is connected to the air entry of jet flow device 3, and electrically operated valve 3 10 is equipped in bypass line 1,
Bypass line 2 13 is connected in atmosphere, and electrically operated valve 4 11, chopped-off head expanding machine 601 and centre are equipped in bypass line 2 13
The gas outlet pipeline of multiple expansion engine 602 respectively not Tong Guo electrical valve 1 and electrical valve 29 be connected to bypass line together
One 12.
Preferably, above-mentioned fixed jet flow device 4 includes main jet 401, mixing chamber 402, trunnion 403, diffuser pipe
404 and voltage-stabiliser tube 405, main jet 401 is mounted on 402 left end of mixing chamber, 402 right end of mixing chamber be provided with trunnion 403 and under
End is provided with the air entry 408 being connected to bypass line 1, and 403 right end of trunnion is provided with diffuser pipe 404 left small and right large, expands
404 right end of pressure pipe is connected with the voltage-stabiliser tube 405 of straight tube, inhales characteristic using the volume of jet flow device, makes to produce in air suction chamber
It gives birth to vacuum and sucks the air in environment, the compressed air entered in expansion power generator is transformed to low pressure by the small flow of high pressure
Power big flow, main jet 401 need to be able to bear 10MPa pressure, and 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 25
At.
Preferably, entrance is installed in above-mentioned air entry 408 and flutters board-like non-return valve 407, it is logical that entrance flutters board-like non-return valve 407
Shaft is crossed to be rotatably connected in circular air entry and air entry can be sealed after closing, can completely open and close, air is only
Can be by entering outside device, when preventing low compressed air inlet pressure, jet stream effect difference, air is from fluidic device inlet after mixing
Outflow.
Preferably, the metal filter screen 406 of 80-200 mesh is provided at above-mentioned air entry 408, filter screen prevents bulky grain
Impurity enter fluidic device.
Embodiment 2: a kind of adjusting method of the compressed-air energy-storage system of multistage switching, this method are as follows: opened in operation
Chopped-off head expander exhaust gas electrically operated valve 1 closes all middle multi-stage expander exhaust gas electrically operated valves 29 and final stage expanding machine row
Pneumoelectric movable valve 3 10 is supplied fixed jet flow device suction gas source switching by chopped-off head expander exhaust gas.
Embodiment 3: a kind of adjusting method of the compressed-air energy-storage system of multistage switching, this method are as follows: or opened in operation
Open certain level-one expander exhaust gas electrically operated valve 29, the exhaust electrically operated gate for closing other grade of expanding machine, head of middle multi-stage expanding machine
Fixed jet flow device is aspirated gas by grade expander exhaust gas electrically operated valve 1 and final stage expander exhaust gas electrically operated valve 3 10
Source switches to be supplied by certain level-one expander exhaust gas of middle multi-stage expanding machine.
Embodiment 4: a kind of adjusting method of the compressed-air energy-storage system of multistage switching, this method are as follows: opened in operation
Final stage expander exhaust gas electrically operated valve 3 10 closes chopped-off head expander exhaust gas electrically operated valve 1, all middle multi-stage expanding machines row
Pneumoelectric movable valve 29, row's atmosphere electrically operated valve 4 11 of final stage expanding machine, will fixed jet flow device suction gas source switching by
The supply of final stage expanding machine.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (7)
1. a kind of compressed-air energy-storage system of multistage switching, it is characterised in that: including high pressure tank (1), the electronic master of air inlet
Valve (2), regulating valve one (3), fixed jet flow device (4), regulating valve two (5), multiple expansion engine (6) and generator (7),
The electronic throttle of air inlet (2), regulating valve one (3), fixed jet flow are sequentially installed on the outlet conduit of high pressure tank (1)
Device (4) and regulating valve two (5), regulating valve two (5) are connected to multiple expansion engine (6), generator (7) and multiple expansion engine (6)
It is connected by transmission shaft, multiple expansion engine (6) includes chopped-off head expanding machine (601), middle multi-stage expanding machine (602) and final stage expansion
The exhaust outlet of machine (603), every level-one expanding machine accesses next stage expanding machine air intake, the outlet tube of final stage expanding machine (603)
Road is divided into bypass line one (12) and bypass line two (13), and bypass line one (12) is connected to the suction of jet flow device (3)
Port is equipped with electrically operated valve three (10) in bypass line one (12), and bypass line two (13) is connected in atmosphere, bypass line
Electrically operated valve four (11), the gas outlet pipeline of chopped-off head expanding machine (601) and middle multi-stage expanding machine (602) are installed on two (13)
Bypass line one (12) is connected to by electrical valve one (8) and electrical valve two (9) together respectively.
2. a kind of compressed-air energy-storage system of multistage switching according to claim 1, it is characterised in that: fixed jet is penetrated
Flowing device (4) includes main jet (401), mixing chamber (402), trunnion (403), diffuser pipe (404) and voltage-stabiliser tube (405), work
Make nozzle (401) and be mounted on mixing chamber (402) left end, mixing chamber (402) right end is provided with trunnion (403) and lower end be provided with
The air entry (408) of bypass line one (12) connection, trunnion (403) right end are provided with diffuser pipe left small and right large (404), diffusion
Pipe (404) right end is connected with the voltage-stabiliser tube (405) of straight tube.
3. a kind of compressed-air energy-storage system of multistage switching according to claim 2, it is characterised in that: air entry
(408) entrance is installed in and flutters board-like non-return valve (407).
4. a kind of compressed-air energy-storage system of multistage switching according to claim 2, it is characterised in that: air entry
(408) metal filter screen (406) of 80-200 mesh is provided at.
5. a kind of adjusting method of the compressed-air energy-storage system of multistage switching according to claim 1 to 4, special
Sign is: this method are as follows: opens chopped-off head expander exhaust gas electrically operated valve one (8) in operation, closes all middle multi-stage expanding machines
It is vented electrically operated valve two (9) and final stage expander exhaust gas electrically operated valve three (10), fixed jet flow device suction gas source is cut
It changes and is supplied by chopped-off head expander exhaust gas.
6. a kind of adjusting method of the compressed-air energy-storage system of multistage switching according to claim 1 to 4, special
Sign is: this method are as follows: or open certain level-one expander exhaust gas electrically operated valve two (9) of middle multi-stage expanding machine in operation, close
Close the exhaust electrically operated gate, chopped-off head expander exhaust gas electrically operated valve one (8) and final stage expander exhaust gas motor-driven valve of other grade of expanding machine
Three (10) of door are supplied fixed jet flow device suction gas source switching by certain level-one expander exhaust gas of middle multi-stage expanding machine
It gives.
7. a kind of adjusting method of the compressed-air energy-storage system of multistage switching according to claim 1 to 4, special
Sign is: this method are as follows: unlatching final stage expander exhaust gas electrically operated valve three (10), closing chopped-off head expander exhaust gas are electronic in operation
Valve one (8), all middle multi-stage expander exhaust gas electrically operated valves two (9), row's atmosphere electrically operated valve four of final stage expanding machine
(11), fixed jet flow device suction gas source switching is supplied by final stage expanding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382490.9A CN109973162A (en) | 2019-05-09 | 2019-05-09 | A kind of compressed-air energy-storage system and method for multistage switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382490.9A CN109973162A (en) | 2019-05-09 | 2019-05-09 | A kind of compressed-air energy-storage system and method for multistage switching |
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| CN109973162A true CN109973162A (en) | 2019-07-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550734A (en) * | 2003-04-09 | 2004-12-01 | ������������ʽ���� | Refrigeration cycle apparatus |
| WO2009014480A1 (en) * | 2007-07-23 | 2009-01-29 | Ultirec | Method and arrangement for energy conversion of heat |
| CN107387376A (en) * | 2017-08-31 | 2017-11-24 | 翟晓慧 | Micro-capacitance sensor compressed-air energy-storage system |
| CN109505666A (en) * | 2018-12-05 | 2019-03-22 | 中国科学院工程热物理研究所 | A kind of jet expansion compound compression air energy storage systems |
| 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 |
| CN210003343U (en) * | 2019-05-09 | 2020-01-31 | 贵州电网有限责任公司 | compressed air energy storage system with multistage switching |
-
2019
- 2019-05-09 CN CN201910382490.9A patent/CN109973162A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550734A (en) * | 2003-04-09 | 2004-12-01 | ������������ʽ���� | Refrigeration cycle apparatus |
| WO2009014480A1 (en) * | 2007-07-23 | 2009-01-29 | Ultirec | Method and arrangement for energy conversion of heat |
| CN107387376A (en) * | 2017-08-31 | 2017-11-24 | 翟晓慧 | Micro-capacitance sensor compressed-air energy-storage system |
| CN109505666A (en) * | 2018-12-05 | 2019-03-22 | 中国科学院工程热物理研究所 | A kind of jet expansion compound compression air energy storage systems |
| 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 |
| CN210003343U (en) * | 2019-05-09 | 2020-01-31 | 贵州电网有限责任公司 | compressed air energy storage system with multistage switching |
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