CN209324608U - A kind of compressed-air energy storage compressor system - Google Patents
A kind of compressed-air energy storage compressor system Download PDFInfo
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- CN209324608U CN209324608U CN201920095414.5U CN201920095414U CN209324608U CN 209324608 U CN209324608 U CN 209324608U CN 201920095414 U CN201920095414 U CN 201920095414U CN 209324608 U CN209324608 U CN 209324608U
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Abstract
The utility model discloses a kind of compressed-air energy storage compressor systems, including at least one hiigh pressure stage compressor, low-pressure stage blower outlet is connected to the hot side entrance of 1# heat exchanger, the hot side outlet of 1# heat exchanger is connected to at least one hiigh pressure stage compressor inlet, the cold side import of heat exchanger is connected with cold-storage tank, heat exchanger cold side outlet port is connected with heat-accumulator tank entrance respectively, it emanates air ejector inlet valve inlet air duct and bypass valve is connected with the 2# exchanger heat side outlet pipeline respectively, air ejector low pressure side inlet of emanating is connected with air intlet door, air intlet door is exported with air intake filter b or the 2# heat exchanger is connected, the air ejector of emanating, bypass valve outlet is connected with air accumulator, before compressed air pressure is not up to rated pressure in air accumulator, pass through the Involving velocity for air ejector of emanating, so that calming the anger Machine outlet pressure matches with reservoir pressure, reduces high pressure air energy loss.
Description
Technical field
The utility model relates to compressed air energy storage technology field, especially a kind of compressed-air energy storage compressor system.
Background technique
Compressed-air energy storage has many advantages, such as that energy storage scale is big, the storage period is long, environmental pollution is small, it is considered to be most has
One of extensive power energy storage technology of development prospect.
Compressor plays a significant role in compressed-air energy storage, is the capital equipment for converting electrical energy into air internal energy,
Compressor power output is reduced in the case where meeting system service requirement to be of great significance to energy saving of system, raising electricity-electrical efficiency.
The method of operation of multistage compressor is regardless of reservoir pressure height at present, and whole compressors put into operation, outlet pressure compared with
High and pressure is constant, but the pressure in energy storage initial stage, air accumulator is lower, due to pressure difference when high pressure air enters air accumulator
Larger, high pressure air expansion work increases air themperature in air accumulator, influences compressed-air energy storage energy
On the other hand power also leads to the energy loss of high pressure air.
Therefore, there are problems that large energy loss compressed-air energy storage compressor system, especially at the beginning of energy storage
The problem of how phase compressor system high pressure air reduces energy loss, improves electric-gas transfer efficiency, it is necessary to find rationally
Solution, can just compressed-air energy storage be made to be more widely used.
Utility model content
Technical problem to be solved by the utility model is: a kind of compressed-air energy storage compressor system is provided, it is existing to solve
Have a compressed-air energy storage power station with multistage compressor, at energy storage initial stage, the pressure in air accumulator is lower, high pressure air into
Since pressure difference is larger when entering air accumulator, high pressure air expansion work causes to compress so that air themperature increases in air accumulator
The problem of energy loss of the problem of air energy storage capacity declines and high pressure air.
The technical solution of the utility model is: a kind of compressed-air energy storage compressor system, including air intake filter
A, cold-storage tank, at least one low-pressure stage compressor and at least one hiigh pressure stage compressor, the low-pressure stage compressor and the height
Compressor of arbitrarily downgrading passes through transmission axis connection, the air intake by transmission axis connection, the hiigh pressure stage compressor and motor
The outlet filter a is connected with the low-pressure stage compressor inlet, and the hot side of the low-pressure stage blower outlet and 1# heat exchanger enters
Mouthful connection, the hot side outlet of 1# heat exchanger is connected to at least one hiigh pressure stage compressor inlet, 1# heat exchanger and 2# heat exchanger
Cold side import is connected with cold-storage tank respectively, the 1# heat exchanger and the 2# heat exchanger cold side outlet port respectively with heat-accumulator tank entrance phase
Even, it emanates air ejector inlet valve inlet air duct and bypass valve is connected with the 2# exchanger heat side outlet pipeline respectively, penetrate
Gas air ejector low pressure side inlet is connected with air intlet door, and air intlet door is exported with air intake filter b or the 2# is changed
Hot device is connected, and the air intake filter a and the air intake filter b are communicated with atmosphere, the air ejector of emanating, side
Road valve outlet is connected with air accumulator.
Preferably, the bypass valve, the air ejector inlet valve of emanating are completely open and close type.
Preferably, the air intlet door is adjustment type, the air intlet door is manually, electrically, surge, it is electro-hydraulic dynamic or
Electromagnetic driven manipulation and control.
The control method of above-mentioned compressed-air energy storage compressor system, comprising the following steps:
As hiigh pressure stage blower outlet compressed air pressure poWith reservoir pressure psDifference be greater than 2# exchanger heat side outlet
To the air ejector entrance crushing p that emanateslWith the air ejector minimum pressure drop p that emanatesdThe sum of when, i.e. po-ps> pl+pdWhen, bypass valve is closed,
Air ejector inlet valve of emanating is opened, and all compressed airs enter air accumulator by air ejector of emanating;It is inhaled in the volume for air ejector of emanating
Under effect, portion of air enters air ejector of emanating by air ejector low pressure side inlet of emanating through air intlet door, empty with compression
Gas enters air accumulator together, by adjusting the aperture of air intlet door, so that the air ejector outlet pressure p that emanatescGreater than air accumulator
Pressure ps, i.e. pc> pd;
As hiigh pressure stage blower outlet compressed air pressure poWith reservoir pressure psDifference be less than or equal to 2# heat exchanger hot side
It is exported to the air ejector entrance crushing p that emanateslWith the air ejector minimum pressure drop p that emanatesdThe sum of when, i.e. po-ps≤pl+pdWhen, it opens other
Road valve closes air intlet door, closes air ejector inlet valve of emanating, and whole compressed airs enter air accumulator by bypass valve.
The utility model has the beneficial effects that a kind of compressed-air energy storage compressor system is provided, it can be in air accumulator internal pressure
During contracting air pressure is not up to before rated pressure, by optimizing compressor system, change compressed air process, by penetrating
The Involving velocity of gas air ejector reduces high pressure air energy so that compressor delivery pressure matches with reservoir pressure
Loss, meanwhile, partial air or low-pressure compressed air are become into high pressure air in the case where additionally not increasing power, mentioned
High compression air energy storage transfer efficiency.
Detailed description of the invention
Fig. 1 is a kind of connection schematic diagram of the utility model measuring device;
Fig. 2 is another connection schematic diagram of the utility model measuring device;
Wherein: 1, air intake filter a, 2, low-pressure stage compressor, 3, hiigh pressure stage compressor, 4, motor, 5, cold-storage
Tank, 6, heat-accumulator tank, 7,1# heat exchanger, 8,2# heat exchanger, 9, air ejector of emanating, 10, bypass door, 11, air accumulator, 12, transmission shaft,
13, air intlet door, 14, air ejector inlet valve of emanating, 111, air intake filter b.
Specific embodiment
Embodiment 1:
With reference to Fig. 1, a kind of compressed-air energy storage compressor system, including air intake filter a1, cold-storage tank 5, at least
One low-pressure stage compressor 2 and at least one hiigh pressure stage compressor 3, the low-pressure stage compressor 2 and the hiigh pressure stage compressor 3
It is connected by transmission shaft 12, the hiigh pressure stage compressor 3 and motor 4 are connected by transmission shaft 12, the air intake filtering
The outlet device a1 is connected with 2 entrance of low-pressure stage compressor, the outlet of low-pressure stage compressor 2 and 7 hot side entrance of 1# heat exchanger
Connection, 7 hot side outlet of 1# heat exchanger are connected to at least one 3 entrance of hiigh pressure stage compressor, and 1# heat exchanger 7 and 2# heat exchanger 8 are cold
Side-entrance is connected with cold-storage tank 5 respectively, the 1# heat exchanger 7 and 8 cold side outlet port of 2# heat exchanger respectively with 6 entrance of heat-accumulator tank
Be connected, emanate 14 inlet air duct of air ejector inlet valve and bypass valve 10 respectively with the 8 hot side outlet pipeline of 2# heat exchanger
It is connected, 9 low pressure side inlet of air ejector of emanating is connected with air intlet door 13, air intlet door 13 and air intake filter b111
Outlet, the air intake filter a1 and the air intake filter b111 are communicated with atmosphere, the air ejector 9 of emanating,
The outlet of bypass valve 10 is connected with air accumulator 11.
The bypass valve 10, the air ejector inlet valve 14 of emanating are completely open and close type.
The air intlet door 13 is adjustment type, and the air intlet door 13 is manually, electrically, surges, electro-hydraulic dynamic or electricity
Magnetic moves manipulation and control.
The control method of above-mentioned compressed-air energy storage compressor system, comprising the following steps:
When hiigh pressure stage compressor 3 exports compressed air pressure poWith 11 pressure p of air accumulatorsDifference be greater than 8 hot side of 2# heat exchanger
It is exported to the 9 entrance crushing p of air ejector that emanateslWith the air ejector minimum pressure drop p that emanatesdThe sum of when, i.e. po-ps> pl+pdWhen, bypass valve
10 close, and air ejector inlet valve 14 of emanating is opened, and all compressed airs enter air accumulator 11 by air ejector 9 of emanating;It is emanating
Under the Involving velocity of air ejector 9, portion of air, which is entered through air intlet door 13 by 9 low pressure side inlet of air ejector of emanating, emanates
Air ejector 9 enters air accumulator 11 together with compressed air, by adjusting the aperture of air intlet door 13, so that air ejector 9 of emanating
Outlet pressure pcGreater than 11 pressure p of air accumulators, i.e. pc> ps;
When hiigh pressure stage compressor 3 exports compressed air pressure poWith 11 pressure p of air accumulatorsDifference be less than or equal to 2# heat exchanger 8
Hot side outlet is to the 9 entrance crushing p of air ejector that emanateslWith the air ejector minimum pressure drop p that emanatesdThe sum of when, i.e. po-ps≤pl+pdWhen, it beats
Open bypass valve 10, close air intlet door 13, closing is emanated air ejector inlet valve 14, whole compressed airs by bypass valve 10 into
Enter air accumulator 11.
Embodiment 2:
With reference to Fig. 2, a kind of compressed-air energy storage compressor system, including air intake filter a1, cold-storage tank 5, at least
One low-pressure stage compressor 2 and at least one hiigh pressure stage compressor 3, the low-pressure stage compressor 2 and the hiigh pressure stage compressor 3
It is connected by transmission shaft 12, the hiigh pressure stage compressor 3 and motor 4 are connected by transmission shaft 12, the air intake filtering
The outlet device a1 is connected with 2 entrance of low-pressure stage compressor, the outlet of low-pressure stage compressor 2 and 7 hot side entrance of 1# heat exchanger
Connection, 7 hot side outlet of 1# heat exchanger are connected to at least one 3 entrance of hiigh pressure stage compressor, and 1# heat exchanger 7 and 2# heat exchanger 8 are cold
Side-entrance is connected with cold-storage tank 5 respectively, the 1# heat exchanger 7 and 8 cold side outlet port of 2# heat exchanger respectively with 6 entrance of heat-accumulator tank
Be connected, emanate 14 inlet air duct of air ejector inlet valve and bypass valve 10 respectively with the 8 hot side outlet pipeline of 2# heat exchanger
It is connected, 9 low pressure side inlet of air ejector of emanating is connected with air intlet door 13, and air intlet door 13 is connected with the 2# heat exchanger 8,
The air intake filter a1 is communicated with atmosphere, and the air ejector 9 of emanating, the outlet of bypass valve 10 are connected with air accumulator 11.Portion
The low-pressure compressed air for dividing low pressure heat exchanger 7 to export enters air ejector 9 of emanating by 9 low pressure side inlet of air ejector of emanating, with pressure
Contracting air enters air accumulator 11 together.
The bypass valve 10, the air ejector inlet valve 14 of emanating are completely open and close type.
The air intlet door 13 is adjustment type, and the air intlet door 13 is manually, electrically, surges, electro-hydraulic dynamic or electricity
Magnetic moves manipulation and control.
The control method of above-mentioned compressed-air energy storage compressor system, comprising the following steps:
When hiigh pressure stage compressor 3 exports compressed air pressure poWith 11 pressure p of air accumulatorsDifference be greater than 8 hot side of 2# heat exchanger
It is exported to the 9 entrance crushing p of air ejector that emanateslWith the air ejector minimum pressure drop p that emanatesdThe sum of when, i.e. po-ps> pl+pdWhen, bypass valve
10 close, and air ejector inlet valve 14 of emanating is opened, and all compressed airs enter air accumulator 11 by air ejector 9 of emanating;It is emanating
Under the Involving velocity of air ejector 9, portion of air, which is entered through air intlet door 13 by 9 low pressure side inlet of air ejector of emanating, emanates
Air ejector 9 enters air accumulator 11 together with compressed air, by adjusting the aperture of air intlet door 13, so that air ejector 9 of emanating
Outlet pressure pcGreater than 11 pressure p of air accumulators, i.e. pc> ps;
When hiigh pressure stage compressor 3 exports compressed air pressure poWith 11 pressure p of air accumulatorsDifference be less than or equal to 2# heat exchanger 8
Hot side outlet is to the 9 entrance crushing p of air ejector that emanateslWith the air ejector minimum pressure drop p that emanatesdThe sum of when, i.e. po-ps≤pl+pdWhen, it beats
Open bypass valve 10, close air intlet door 13, closing is emanated air ejector inlet valve 14, whole compressed airs by bypass valve 10 into
Enter air accumulator 11.
Claims (3)
1. a kind of compressed-air energy storage compressor system, including air intake filter a(1) and cold-storage tank (5), feature exists
In further including at least one low-pressure stage compressor (2) and at least one hiigh pressure stage compressor (3), the low-pressure stage compressor (2)
It is connected with the hiigh pressure stage compressor (3) by transmission shaft (12), the hiigh pressure stage compressor (3) and motor (4) pass through biography
Moving axis (12) connection, the air intake filter a(1) outlet be connected with low-pressure stage compressor (2) entrance, the low pressure
Grade compressor (2) is exported and is connected to 1# heat exchanger (7) hot side entrance, 1# heat exchanger (7) hot side outlet and at least one hiigh pressure stage
The connection of compressor (3) entrance, 1# heat exchanger (7) and 2# heat exchanger (8) cold side import are connected with cold-storage tank (5) respectively, the 1#
Heat exchanger (7) and the 2# heat exchanger (8) cold side outlet port are connected with heat-accumulator tank (6) entrance respectively, air ejector inlet valve of emanating
(14) inlet air duct and bypass valve (10) are connected with 2# heat exchanger (8) the hot side outlet pipeline respectively, air ejector of emanating
(9) low pressure side inlet is connected with air intlet door (13), air intlet door (13) and air intake filter b(111) outlet or
The 2# heat exchanger (8) is connected, the air intake filter a(1) and the air intake filter b(111) and big gas phase
Logical, the air ejector of emanating (9), bypass valve (10) outlet are connected with air accumulator (11).
2. a kind of compressed-air energy storage compressor system according to claim 1, which is characterized in that the bypass valve
(10), described emanate air ejector inlet valve (14) are completely open and close type.
3. a kind of compressed-air energy storage compressor system according to claim 1, which is characterized in that the air intlet door
It (13) is adjustment type, the air intlet door (13) is manually, electrically, surges, electro-hydraulic dynamic or electromagnetic driven manipulation and control.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109469598A (en) * | 2019-01-21 | 2019-03-15 | 贵州电网有限责任公司 | A kind of compressed-air energy storage compressor system and its control method |
CN112983783A (en) * | 2021-03-30 | 2021-06-18 | 北京理工大学 | Energy storage subsystem applied to compressed air energy storage system and operation method |
-
2019
- 2019-01-21 CN CN201920095414.5U patent/CN209324608U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109469598A (en) * | 2019-01-21 | 2019-03-15 | 贵州电网有限责任公司 | A kind of compressed-air energy storage compressor system and its control method |
CN109469598B (en) * | 2019-01-21 | 2024-05-03 | 贵州电网有限责任公司 | Compressed air energy storage compressor system and control method thereof |
CN112983783A (en) * | 2021-03-30 | 2021-06-18 | 北京理工大学 | Energy storage subsystem applied to compressed air energy storage system and operation method |
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