CN209294010U - 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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- CN209294010U CN209294010U CN201920039364.9U CN201920039364U CN209294010U CN 209294010 U CN209294010 U CN 209294010U CN 201920039364 U CN201920039364 U CN 201920039364U CN 209294010 U CN209294010 U CN 209294010U
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Abstract
The utility model discloses a kind of compressed-air energy storage compressor systems, it is connected in compressed-air energy storage compressor system into fluid coupling, motor is connect by motor transmission shaft with fluid coupling, fluid coupling is connect by compressor transmission shaft with hiigh pressure stage compressor, it can be during compressed air pressure be not up to before rated pressure in air accumulator, it is acted on by the speed regulation of fluid coupling, reduce the revolving speed of compressor, adjust the pressure ratio of compressor, change the pressure of blower outlet compressed air, so that compressor delivery pressure matches with reservoir pressure, reduce high pressure air energy loss, simultaneously, due to reducing the input torque of compressor under the adjustment of fluid coupling, motor power (output) reduces, reach compressed-air energy-storage system and reduces energy loss, improve electricity-electrotransformation efficiency purpose.
Description
Technical field
The utility model relates to multistage compressor system regions more particularly to a kind of compressed-air energy storage compressor systems.
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 of technology 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.
A kind of to achieve the above purpose, the technical solution of the present invention is: compressed-air energy storage compressor system, packet
It includes: air intake filter, at least one low-pressure stage compressor, at least one hiigh pressure stage compressor, motor, cold-storage tank, storage
Hot tank, at least two heat exchangers, compressor transmission shaft, fluid coupling, motor transmission shaft, air accumulator and associated conduit valve,
The air intake filter outlet is connected with the low-pressure stage compressor inlet, and the low-pressure stage blower outlet is changed with described
Hot device hot side entrance connection, at least one described hiigh pressure stage compressor inlet connection of the exchanger heat side outlet, the high pressure
Grade blower outlet be connected to exchanger heat side entrance, the exchanger heat side outlet be connected with air accumulator described at least one change
The cold side import of hot device is connected with cold-storage tank, and cold side outlet port is connected with heat-accumulator tank entrance, and the motor passes through motor transmission shaft
It is connect with fluid coupling, the fluid coupling is connect by compressor transmission shaft with the hiigh pressure stage compressor.
Preferably, the motor is exchange constant-seed motor.
Preferably, the fluid coupling is speed regulation type hydrodynamic coupler.
The control method of above-mentioned compressed-air energy storage compressor system, includes the following steps:
The compressed-air energy storage stage, when:
pd>(pt+pr)
In formula: pdOutlet pressure, p are designed for hiigh pressure stage compressortFor air accumulator actual pressure, prIt is high under declared working condition
Compressor arbitrarily downgrade to air accumulator pipe design crushing,
Start motor running, adjusts fluid coupling scoop tube aperture, change the output revolving speed n of fluid coupling, so that:
In formula,Hiigh pressure stage compressor designs outlet pressure when for revolving speed n, can indicate are as follows:
In formula: p0For low-pressure stage compressor inlet pressure,For Design compression ratio of the low-pressure stage compressor in revolving speed n,
For Design compression ratio of the hiigh pressure stage compressor in revolving speed n,
When:
pd≤(pt+pr)
Energy storage terminates, stoppage in transit motor powered machine.
The beneficial effects of the utility model are: by the implementation of the utility model, can in air accumulator compressed air pressure
During power is not up to before rated pressure, is acted on by the speed regulation of fluid coupling, reduce the revolving speed of compressor, adjustment is calmed the anger
The pressure ratio of machine, the pressure for changing blower outlet compressed air subtract so that compressor delivery pressure matches with reservoir pressure
Few high pressure air energy loss, simultaneously as reduce the input torque of compressor under the adjustment of fluid coupling, electricity
Motivation power reduces, and achievees the purpose that improve compressed-air energy storage electricity-photoelectric transformation efficiency.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of Tthe utility model system；
In figure: 1, air intake filter, 2, low-pressure stage compressor, 3, hiigh pressure stage compressor, 4, motor, 5, cold-storage
Tank, 6, heat-accumulator tank, 7, heat exchanger, 8, compressor transmission shaft, 9, fluid coupling, 10, motor transmission shaft, 11, air accumulator.
Specific embodiment
Further illustrate the utility model with reference to the accompanying drawing, it should be understood that the example be merely to illustrate the utility model without
For limiting the scope of the utility model, after having read the utility model, those skilled in the art are to the utility model
The modification of various equivalent forms falls within the application range as defined in the appended claims.
A kind of compressed-air energy storage compressor system, comprising: air intake filter 1, at least one low-pressure stage compressor
2, at least one hiigh pressure stage compressor 3, motor 4, cold-storage tank 5, heat-accumulator tank 6, at least two heat exchangers 7, compressor transmission shaft
8, fluid coupling 9, motor transmission shaft 10, air accumulator 11 and associated conduit valve, the outlet of air intake filter 1 and institute
It states 2 entrance of low-pressure stage compressor to be connected, the outlet of low-pressure stage compressor 2 is connected to the 7 hot side entrance of heat exchanger, described to change
At least one described 3 entrance of the hiigh pressure stage compressor connection of hot 7 hot side outlet of device, the outlet of hiigh pressure stage compressor 3 and heat exchanger 7
Hot side entrance connection, 7 hot side outlet of heat exchanger be connected with air accumulator 11 described at least one heat exchanger 7 cold side import and
Cold-storage tank 5 is connected, and cold side outlet port is connected with 6 entrance of heat-accumulator tank, and the motor 4 passes through motor transmission shaft 10 and fluid coupling
Motor torque is passed to fluid coupling 9 by motor transmission shaft 10 by 9 connections, motor, and the fluid coupling 9 passes through pressure
Contracting machine transmission shaft 8 is connect with the hiigh pressure stage compressor 3, and fluid coupling 9 passes torque to height by compressor transmission shaft 8
It arbitrarily downgrades compressor 3.
The motor 4 is exchange constant-seed motor.
The fluid coupling 9 is speed regulation type hydrodynamic coupler, and the fluid coupling 9 is the variation by the liquid moment of momentum
Transmit the hydraulic transmission system of torque.
The control method of above-mentioned compressed-air energy storage compressor system, includes the following steps:
The compressed-air energy storage stage, when:
pd>(pt+pr)
In formula: pdOutlet pressure, p are designed for hiigh pressure stage compressor 3tFor air accumulator actual pressure, prIt is high under declared working condition
Compressor 3 arbitrarily downgrade to 11 pipe design crushing of air accumulator,
Start motor 4 to run, adjusts 9 scoop tube aperture of fluid coupling, change the output revolving speed n of fluid coupling, make
:
In formula,Hiigh pressure stage compressor 3 designs outlet pressure when for revolving speed n, can indicate are as follows:
In formula: p0For 2 inlet pressure of low-pressure stage compressor,For Design compression ratio of the low-pressure stage compressor 2 in revolving speed n,For Design compression ratio of the hiigh pressure stage compressor 3 in revolving speed n,
When:
pd≤(pt+pr)
Energy storage terminates, stoppage in transit motor powered machine 4.
Claims (3)
1. a kind of compressed-air energy storage compressor system, comprising: air intake filter (1), at least one low-pressure stage compressor
(2), at least one hiigh pressure stage compressor (3), motor (4), cold-storage tank (5), heat-accumulator tank (6), at least two heat exchangers (7),
Compressor transmission shaft (8), motor transmission shaft (10), air accumulator (11) and associated conduit valve, it is characterised in that: further include fluid power
Coupler (9), air intake filter (1) outlet are connected with low-pressure stage compressor (2) entrance, the low-pressure stage pressure
Mechanism of qi (2) outlet is connected to the heat exchanger (7) hot side entrance, at least one described high pressure of heat exchanger (7) hot side outlet
Grade compressor (3) entrance connection, hiigh pressure stage compressor (3) outlet are connected to heat exchanger (7) hot side entrance, the heat exchanger
(7) be connected with air accumulator (11) cold side import of at least one heat exchanger (7) of hot side outlet is connected with cold-storage tank (5), cold
Side outlet is connected with heat-accumulator tank (6) entrance, and the motor (4) is connect by motor transmission shaft (10) with fluid coupling (9),
The fluid coupling (9) is connect by compressor transmission shaft (8) with the hiigh pressure stage compressor (3).
2. a kind of compressed-air energy storage compressor system according to claim 1, it is characterised in that: the motor (4)
To exchange constant-seed motor.
3. a kind of compressed-air energy storage compressor system according to claim 1, it is characterised in that: the fluid coupling
It (9) is speed regulation type hydrodynamic coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039364.9U CN209294010U (en) | 2019-01-10 | 2019-01-10 | A kind of compressed-air energy storage compressor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039364.9U CN209294010U (en) | 2019-01-10 | 2019-01-10 | A kind of compressed-air energy storage compressor system |
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| CN209294010U true CN209294010U (en) | 2019-08-23 |
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| CN201920039364.9U Active CN209294010U (en) | 2019-01-10 | 2019-01-10 | A kind of compressed-air energy storage compressor system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441785A (en) * | 2019-01-10 | 2019-03-08 | 贵州电网有限责任公司 | A kind of compressed-air energy storage compressor system and its control method |
| CN112211801A (en) * | 2020-09-29 | 2021-01-12 | 河南大学 | Efficient air compression device and method based on gas adsorption and desorption effects |
-
2019
- 2019-01-10 CN CN201920039364.9U patent/CN209294010U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441785A (en) * | 2019-01-10 | 2019-03-08 | 贵州电网有限责任公司 | A kind of compressed-air energy storage compressor system and its control method |
| CN109441785B (en) * | 2019-01-10 | 2024-05-14 | 贵州电网有限责任公司 | Compressed air energy storage compressor system and control method thereof |
| CN112211801A (en) * | 2020-09-29 | 2021-01-12 | 河南大学 | Efficient air compression device and method based on gas adsorption and desorption effects |
| CN112211801B (en) * | 2020-09-29 | 2021-08-10 | 河南大学 | Efficient air compression device and method based on gas adsorption and desorption effects |
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