CN210372859U - Compressed air energy storage combined type air storage tank system - Google Patents
Compressed air energy storage combined type air storage tank system Download PDFInfo
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- CN210372859U CN210372859U CN201921452868.XU CN201921452868U CN210372859U CN 210372859 U CN210372859 U CN 210372859U CN 201921452868 U CN201921452868 U CN 201921452868U CN 210372859 U CN210372859 U CN 210372859U
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Abstract
The utility model discloses a compressed air energy storage combination formula gas holder system, including a plurality of operation high pressure gas holders, start the middling pressure gas holder, operation high pressure gas holder outlet valve, start middling pressure gas holder outlet valve, adjusting valve, expander and generator, a plurality of operation high pressure gas holders and start middling pressure gas holder parallel arrangement, collect to a female pipe after parallelly connected, install operation high pressure gas holder outlet valve and start middling pressure gas holder outlet valve on every operation high pressure gas holder and the outlet duct that starts the middling pressure gas holder respectively, install adjusting valve on the female pipe, female pipe is given vent to anger end and expander entry linkage, expander export exhaust connects to the atmosphere, the expander passes through the transmission shaft with the generator and links to each other. The utility model discloses a switch at different stages and use the compressed air of different pressure, use middling pressure compressed air at the start-up stage, improve the control accuracy of start-up process, use high-pressure compressed air at the operation in-process, improve entire system operating efficiency.
Description
Technical Field
The utility model belongs to the technical field of the compressed air energy storage, concretely relates to compressed air energy storage combination formula gas holder system.
Background
The compressed air energy storage system has the advantages of large energy storage scale, long storage period, small environmental pollution and the like, when the electric quantity of a power grid is excessive, the compressor is started to compress air, the air is compressed and stored in an energy storage process, electric energy is consumed to drive the compressor to run, and the air is compressed and stored in the air storage tank; when the electric quantity of the power grid is in short supply, the expander is started, and high-pressure air in the air storage tank enters the expander to drive the generator to generate electricity.
At present, the gas storage tank is in one specification, and in order to improve energy density and reduce storage volume, the pressure of the gas storage tank is selected to be very high and even reach supercritical state. In the starting process of the expansion generator, the rotating speed is not easy to control in the starting process often because the pressure of the air storage tank is too high, and an overspeed accident is easily caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: a compressed air energy storage combined air storage tank system is provided.
The utility model discloses the technical scheme who takes does: the utility model provides a compressed air energy storage combination formula gas holder system, including a plurality of operation high pressure gas holders, start middling pressure gas holder, operation high pressure gas holder outlet valve, start middling pressure gas holder outlet valve, the regulating valve, expander and generator, a plurality of operation high pressure gas holders and the parallel arrangement of start middling pressure gas holder, collect to a female pipe after parallelly connected, install operation high pressure gas holder outlet valve and start middling pressure gas holder outlet valve on the outlet duct of every operation high pressure gas holder and start middling pressure gas holder respectively, install the regulating valve on the female pipe, female pipe outlet end and expander entry linkage, the expander export is discharged and is connected to the atmosphere, the expander passes through the transmission shaft with the generator and links to each other.
Preferably, the regulating valve is an electric, pneumatic or hydraulic regulating valve.
The utility model has the advantages that: compared with the prior art, the utility model discloses a switch at different stages and use the compressed air of different pressure, use middling pressure compressed air at the start-up stage, improve the control accuracy of start-up process, use high-pressure compressed air at the operation in-process, improve entire system operating efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in the figure, the compressed air energy storage combined type air storage tank system comprises a plurality of running high-pressure air storage tanks 1, a starting medium-pressure air storage tank 2, a running high-pressure air storage tank outlet valve 3, a starting medium-pressure air storage tank outlet valve 4, an adjusting valve 5, an expansion machine 6 and a generator 7, wherein the running high-pressure air storage tanks 1 and the starting medium-pressure air storage tank 2 are arranged in parallel and are collected into a main pipe after being connected in parallel, the running high-pressure air storage tank outlet valve 3 and the starting medium-pressure air storage tank outlet valve 4 are respectively installed on an air outlet pipe of each of the running high-pressure air storage tanks 1 and the starting medium-pressure air storage tank 2, the adjusting valve 5 is installed on the main pipe, the air outlet end of the main pipe is connected with an.
Preferably, the regulating valve 5 is an electric, pneumatic or hydraulic regulating valve, and has an automatic control function, and the control targets are the rotating speed of the expansion machine and the active power of the generator.
Preferably, the starting medium pressure air storage tank 2 has rated pressureP S10-20% of the rated pressure of the high-pressure gas storage tank 1P 0。
Example 2: a method of regulating a compressed air energy storage combined air storage tank system, the method comprising the steps of:
firstly, closing outlet valves of running high-pressure gas storage tanks during starting, and opening outlet valves of starting medium-pressure gas storage tanks;
and step two, controlling the air inlet flow of the expansion machine by using an adjusting valve to start: the expansion machine gradually accelerates from a static state to a rated rotating speed, is connected to a power grid, and increases the output active power to rated power or power required by the power grid;
thirdly, opening outlet valves of the high-pressure gas storage tanks in operation, starting the medium-pressure gas storage tank to increase the pressure, and starting the medium-pressure gas storage tank to reach the rated pressure when the pressure is increasedP S When the valve is closed, the outlet valve of the medium-pressure gas storage tank is started;
and fourthly, controlling the air inlet flow of the expansion machine by using an adjusting valve to normally operate, and adjusting the output active power according to the requirement of the power grid.
The utility model discloses a switch at different stages and use the compressed air of different pressure, use middling pressure compressed air at the start-up stage, improve the control accuracy of start-up process, use high-pressure compressed air at the operation in-process, improve entire system operating efficiency.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (2)
1. The utility model provides a compressed air energy storage combination formula air tank system which characterized in that: the high-pressure gas storage tank expansion device comprises a plurality of running high-pressure gas storage tanks (1), a starting medium-pressure gas storage tank (2), a running high-pressure gas storage tank outlet valve (3), a starting medium-pressure gas storage tank outlet valve (4), an adjusting valve (5), an expansion machine (6) and a generator (7), wherein the running high-pressure gas storage tanks (1) and the starting medium-pressure gas storage tank (2) are arranged in parallel, a main pipe is collected after parallel connection, a running high-pressure gas storage tank outlet valve (3) and a starting medium-pressure gas storage tank outlet valve (4) are respectively installed on an outlet pipe of each running high-pressure gas storage tank (1) and the starting medium-pressure gas storage tank (2), the adjusting valve (5) is installed on the main pipe, the outlet end of the main pipe is connected with an inlet of the expansion machine (.
2. A compressed air energy storing combined air reservoir system according to claim 1 wherein: the adjusting valve (5) adopts an electric, pneumatic or hydraulic adjusting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452868.XU CN210372859U (en) | 2019-09-03 | 2019-09-03 | Compressed air energy storage combined type air storage tank system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921452868.XU CN210372859U (en) | 2019-09-03 | 2019-09-03 | Compressed air energy storage combined type air storage tank system |
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| Publication Number | Publication Date |
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| CN210372859U true CN210372859U (en) | 2020-04-21 |
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| CN201921452868.XU Active CN210372859U (en) | 2019-09-03 | 2019-09-03 | Compressed air energy storage combined type air storage tank system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410664A (en) * | 2019-09-03 | 2019-11-05 | 贵州电网有限责任公司 | A kind of compressed-air energy storage combined type gas storage can system and its adjusting method |
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2019
- 2019-09-03 CN CN201921452868.XU patent/CN210372859U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410664A (en) * | 2019-09-03 | 2019-11-05 | 贵州电网有限责任公司 | A kind of compressed-air energy storage combined type gas storage can system and its adjusting method |
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