CN-224214214-U - Artificial chamber compressed air energy storage system based on water spraying temperature control

CN224214214UCN 224214214 UCN224214214 UCN 224214214UCN-224214214-U

Abstract

The utility model provides an artificial chamber compressed air energy storage system and method based on water spraying temperature control, wherein the system comprises an artificial chamber, a spraying system, a water collecting system and a circulating water delivery system, wherein the artificial chamber is positioned underground, the artificial chamber is in air communication with the outside through a gas pipe, the designed water amount is stored in the artificial chamber and used for water spraying and circulating heat exchange, an inlet of the circulating water delivery system is connected with the water collecting system, an outlet of the circulating water delivery system is connected with the spraying system, the water collecting system is used for collecting water in the artificial chamber and delivering the water into the spraying system through the circulating water delivery system when the water is stored and released, and the spraying system is used for spraying the water from the circulating water delivery system into the artificial chamber after being atomized so as to regulate the temperature when the water is stored and released. The utility model can effectively control the temperature change range in the artificial chamber, simultaneously ensure that the temperature in the chamber is not too high or too low, prolong the service lives of the sealing material and the lining structural material in the chamber and ensure the operation safety of the gas storage.

Inventors

LI XICHEN
ZHANG HENG
ZHOU LINGMIN
CAI GUOZHENG
Hua Liuyuan
MA HONGBIN

Assignees

升能能源(浙江)有限公司

Dates

Publication Date: 20260508
Application Date: 20250428

Claims (6)

1. The compressed air energy storage system of the artificial chamber based on water spraying temperature control is characterized by comprising an artificial chamber (1), a spraying system (2), a water collecting system (3) and a circulating water delivery system (4) which are positioned underground, wherein the artificial chamber (1) is in air communication with the outside through a gas pipe (10), the artificial chamber (1) stores designed water quantity for water spraying circulation heat exchange, the inlet of the circulating water delivery system (4) is connected with the water collecting system (3), the outlet of the circulating water delivery system is connected with the spraying system (2), the water collecting system (3) is used for collecting water in the artificial chamber (1) and delivering the water to the spraying system (2) through the circulating water delivery system (4) when the energy is stored and released, and the spraying system (2) is used for spraying water from the circulating water delivery system (4) into the artificial chamber (1) for adjusting the temperature after atomization; The circulating water delivery system (4) comprises a first water outlet pipeline (42) provided with a first check valve (41), wherein an inlet of the first water outlet pipeline (42) is connected with a water collecting main pipe (32) of the water collecting system (3), an outlet of the first water outlet pipeline is sequentially connected with a filter (44) and a first stop valve (45) through a second water outlet pipeline (43), an outlet of the second water outlet pipeline (43) is connected with a booster water pump (46), an outlet of the booster water pump (46) is connected with a third water inlet pipeline (47), and an outlet of the third water inlet pipeline (47) is connected with a water spraying main pipe (22) of the spraying system (2) through a first water inlet pipeline (48).
2. The compressed air energy storage system of the artificial chamber based on water spraying temperature control according to claim 1, wherein the spraying system (2) comprises an atomization nozzle (21) and a water spraying main pipe (22), the water spraying main pipe (22) is arranged at the inner top of the artificial chamber (1) and is connected to an outlet of the circulating water delivery system (4), a plurality of the atomization nozzles (21) are arranged at intervals along the length direction of the water spraying main pipe (22) and are used for spraying water into the artificial chamber (1) after atomization, and the length direction of the water spraying main pipe (22) is parallel to the axial direction of the artificial chamber (1).
3. The compressed air energy storage system of the artificial chamber based on water spraying temperature control according to claim 1, wherein the water collecting system (3) comprises a water collecting tank (31) and a water collecting main pipe (32), the water collecting main pipe (32) is arranged at the inner bottom of the artificial chamber (1) and is connected to an inlet of the circulating water delivery system (4), the water collecting tanks (31) are arranged at intervals along the length direction of the water collecting main pipe (32) and used for collecting sprayed water, and the length direction of the water collecting main pipe (32) is parallel to the axial direction of the artificial chamber (1).
4. The artificial chamber compressed air energy storage system based on water spraying temperature control according to claim 1, further comprising a drainage system (5), wherein the drainage system (5) comprises a fire water tank (51) positioned on the ground, the fire water tank (51) is connected with the outlet of the first water outlet pipeline (42) through a third water outlet pipeline (52), and a second stop valve (53) is installed on the third water outlet pipeline (52).
5. The artificial chamber compressed air energy storage system based on water spraying temperature control according to claim 1, further comprising a water supplementing system (6), wherein the water supplementing system (6) comprises a warm water tank (61) and a cold water tank (62) which are arranged on the ground, the other path of an outlet of the third water inlet pipeline (47) is sequentially connected with a third stop valve (64) and a water supplementing pump (65) through a second water inlet pipeline (63), the other end of the water supplementing pump (65) is connected with a second check valve (66), the other end of the second check valve (66) is respectively connected with the warm water tank (61) and the cold water tank (62), and a fourth stop valve (67) and a fifth stop valve (68) are respectively arranged in the middle.
6. The compressed air energy storage system of the artificial chamber based on water spraying temperature control according to claim 1, wherein the artificial chamber (1) is of a cylindrical structure and is horizontally arranged, a vertical shaft (7) is arranged on one side of the artificial chamber (1) and a sealing door (8) is arranged between the vertical shaft and the artificial chamber, a gas pipe (10) is arranged in the vertical shaft (7), a disc-type flat-plate demister (9) is arranged between the gas pipe (10) and the artificial chamber (1), the flat-plate demister (9) comprises a plurality of plates (91) with saw-tooth-shaped sections and fixing plates (92) used for fixing the plates (91), and a tortuous channel for gas passing through is formed between the adjacent plates (91).

Description

Artificial chamber compressed air energy storage system based on water spraying temperature control Technical Field The utility model belongs to the technical field of compressed air energy storage, and particularly relates to an artificial chamber compressed air energy storage system based on water spraying temperature control. Background Compressed air energy storage is a large energy storage technology which converts electric energy into air pressure potential energy and heat energy of a heat storage medium for storage, and converts the electric energy into electric energy when electricity is used in a peak. The method utilizes surplus electric energy of a power grid, compresses air through a compressor to store the electric energy, conveys the compressed air into a rock cave, a abandoned salt cavern, a abandoned mine or other pressure containers, discharges high-pressure gas in a gas storage in the high-load period of the power grid, heats the gas through a combustion chamber or a heat exchanger, rises to a certain temperature, sends the gas to an expander, converts pressure potential energy and thermodynamic potential energy of the compressed air into mechanical work output of the expander, and drives a generator to generate electricity. At present, compressed air energy storage gas storage can adopt forms such as ground pipeline steel, salt caves, artificial chambers and the like, more and more projects adopt the form of artificial chamber gas storage in order to meet the flexibility and economy of power station arrangement, but the following problems exist in practical application: 1. When energy is stored, a large amount of heat is generated when air is compressed into the chamber, the temperature of the air in the chamber is greatly increased, and when energy is released, the air is discharged outwards from the chamber to take away a large amount of heat, the temperature of the air in the chamber is greatly reduced, and the service life of a sealing layer in the chamber and the strength of lining structural materials are influenced by overhigh or overlow temperature and severe temperature change, so that the air-cooling type air-conditioning device is safe to operate. 2. In the energy storage and release process, the average temperature of air in the chamber is high, the air density is low, the chamber volume required for storing the same air quality is larger, and the manufacturing cost of the air storage chamber is greatly increased. Disclosure of Invention Aiming at the defects existing in the prior art, the utility model aims to provide an artificial chamber compressed air energy storage system based on water spraying temperature control and an operation method. Compared with the prior art, the utility model has remarkable advantages in the aspects of temperature control effect, cost control, system operation and maintenance and the like, and provides a better scheme for the application and development of the compressed air energy storage technology. In order to achieve the above purpose, the present utility model is realized by the following technical scheme: the utility model provides a compressed air energy storage system of an artificial chamber based on water spraying temperature control, which comprises an artificial chamber, a spraying system, a water collecting system and a circulating water delivery system, wherein the artificial chamber is positioned underground and is in air communication with the outside through an air delivery pipe, the artificial chamber stores designed water volume for water spraying circulation heat exchange, an inlet of the circulating water delivery system is connected with the water collecting system, an outlet of the circulating water delivery system is connected with the spraying system, the water collecting system is used for collecting water in the artificial chamber and delivering the water to the spraying system through the circulating water delivery system when the water collecting system stores energy and releases energy, and the spraying system is used for spraying the water from the circulating water delivery system into the artificial chamber after atomizing the water to adjust the temperature when the water storing system stores energy and releases energy. As a further optimization scheme of the utility model, the spraying system comprises an atomizing nozzle and a water spraying main pipe, wherein the water spraying main pipe is arranged at the inner top of the artificial chamber and is connected to the outlet of the circulating water delivery system, a plurality of atomizing nozzles are arranged at intervals along the length direction of the water spraying main pipe and are used for spraying water into the artificial chamber after atomizing, and the length direction of the water spraying main pipe is mutually parallel to the axial direction of the artificial chamber. As a further optimization scheme of the utility model, the water collecting sys