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CN-224214213-U - Temperature regulating system of compressed air energy storage chamber

CN224214213UCN 224214213 UCN224214213 UCN 224214213UCN-224214213-U

Abstract

The utility model provides a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged underground, a vertical shaft arranged at the top of the artificial chamber, and an air circulation pipeline and a water pipeline which are arranged in the artificial chamber, wherein an air inlet and an air outlet at two ends of the air circulation pipeline are respectively arranged oppositely along two sides of the artificial chamber, an axial flow fan is arranged in the air inlet of the air circulation pipeline, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of a warm water tank and a water inlet of a factory circulating cooling water, the water outlet pipeline is communicated with the water inlet of the cold water tank and a water return port of the factory, a spiral heat exchange pipe is arranged between the water inlet pipeline and the water outlet pipeline and is embedded in the air circulation pipeline behind the axial flow fan and used for exchanging heat with air in the chamber, so that the temperature of the air in the artificial chamber is regulated when the air is inflated, the energy storage and the air release energy is ensured, and the structural safety of surrounding rocks around the artificial chamber is improved, and the service life of sealing materials in the chamber is prolonged.

Inventors

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

Assignees

  • 升能能源(浙江)有限公司

Dates

Publication Date
20260508
Application Date
20250428

Claims (7)

  1. 1. The temperature regulating system of the compressed air energy storage chamber comprises an artificial chamber (1) horizontally arranged in the underground and a vertical shaft arranged at the top of the artificial chamber, and is characterized by further comprising an air circulation pipeline (5) and a water pipeline (10) which are arranged in the artificial chamber (1), wherein an air inlet and an air outlet at two ends of the air circulation pipeline (5) are respectively arranged oppositely along two sides of the artificial chamber (1), an axial flow fan (6) is arranged in the air inlet of the air circulation pipeline (5), the water pipeline (10) is arranged along the length direction of the vertical shaft and is arranged in the artificial chamber (1), the water pipeline (10) comprises an inlet pipeline (10-1) and an outlet pipeline (10-2), the inlet pipeline (10-1) is communicated with the water outlet of a warm water tank (8) and the water inlet of circulating cooling water (18) in a factory, a spiral heat pipe (7) is arranged between the inlet pipeline (10-1) and the outlet pipeline (10-2), and the spiral heat pipe (7) is embedded in the spiral heat pipe (6) for exchanging heat with the air circulation fan (5) when the air is used for air exchange chamber and the air exchange chamber (1) and the air exchange chamber, and the air exchange chamber can release heat when the air exchange chamber is inflated.
  2. 2. The temperature regulation system of claim 1 wherein the length direction of the air circulation pipeline (5) is axially parallel to the artificial chamber (1), the air circulation pipeline (5) is close to the bottom of the artificial chamber (1) and two ends of the air circulation pipeline are respectively and upwardly bent to be communicated with the air branch parent pipelines (4) in a divergent shape, and the air branch parent pipelines (4) are close to the left side and the right side of the artificial chamber (1).
  3. 3. The temperature regulation system according to claim 2, wherein the air branch pipes (3) are arranged at intervals in the length direction of the air branch parent pipe (4) of the air circulation pipe (5), and the ports of the air branch pipes (3) are provided with circular diffusers (2).
  4. 4. The temperature regulation system according to claim 1, wherein the water inlet pipeline (10-1) of the water pipeline (10) is communicated with the water inlet of the in-plant circulating cooling water (18) through a third valve (14), and the water outlet pipeline (10-2) is communicated with the water return port of the in-plant circulating cooling water (18) through a fourth valve (15).
  5. 5. The temperature regulation system of claim 4 wherein the water inlet pipeline (10-1) of the water pipeline (10) is communicated with the water outlet of the warm water tank (8) through a first valve (12), a check valve (16) and a water pump (11), and the water outlet pipeline (10-2) is communicated with the water inlet of the cold water tank (9) through a second valve (13).
  6. 6. The temperature regulation system of claim 1 further comprising a plurality of thermometers (17) adjacent to the air inlet of the air circulation duct (5), the thermometers (17) being evenly distributed along the circular cross-section of the chamber.
  7. 7. The temperature regulation system of claim 5, wherein the water pump (11), the axial flow fan (6), the third valve (14) and the thermometer (17) are respectively connected with a controller.

Description

Temperature regulating system of compressed air energy storage chamber Technical Field The utility model relates to the technical field of energy storage, in particular to a temperature regulating system of a compressed air energy storage chamber and an operation method. Background Currently, the non-afterburning compressed air energy storage technology is mainly divided into two types of artificial chamber-based gas storage and salt cavern-based gas storage, wherein the non-afterburning compressed air energy storage technology based on the artificial chamber-based gas storage is flexible in site selection, less in limitation of geographic conditions and larger in development space. Under the condition of approximate heat insulation in the gas storage, the temperature and the pressure in the gas storage are both increased rapidly due to the fact that the air in the gas storage is continuously compressed to generate heat in the gas storage in the gas charging and energy storage stage, and the temperature and the pressure in the gas storage are both decreased rapidly due to the fact that the air in the gas storage is continuously expanded to do work in the gas discharging and energy releasing stage. The temperature and pressure change amplitude of the gas storage in the energy storage stage and the energy release stage of the gas storage are in direct proportion to the energy storage density of the gas storage. At present, the energy storage density of the prior non-afterburning compressed air energy storage project gas storage in China is smaller, the temperature and pressure change of the gas storage in the energy storage stage and the energy release stage of inflation and deflation are smaller at about 1-4 kw.h/m < 3 >, and no temperature regulation control device in the gas storage is arranged. Because the construction cost of the underground artificial chamber is far higher than the cost of the salt cavern cavity, in order to reduce the investment of the artificial chamber, the construction volume of the artificial chamber should be reduced, and the energy storage density of the air storage of the artificial chamber is improved. However, in the compressed air energy storage system, with the increase of the energy storage density of the artificial chamber, the temperature and the pressure in the chamber can be greatly fluctuated in the stage of inflation energy storage and deflation energy release under the approximate adiabatic condition, so that the service life of the sealing material of the artificial chamber and the safety of surrounding rock structures are seriously adversely affected, and the circulation efficiency of the system is reduced. Meanwhile, in order to increase the energy storage capacity, the building volume of the chamber is generally required to be enlarged, but the building cost is greatly increased, and the economic benefit is limited. In order to solve the problem of overlarge temperature and pressure fluctuation range in the artificial chamber caused by the increase of the energy storage density of the air storage warehouse of the artificial chamber, a person skilled in the art is required to provide a temperature adjusting system and an operation method of the compressed air energy storage chamber, so that the structural safety of surrounding rocks around the artificial chamber is ensured, and the service life of a sealing material in the chamber is prolonged. Disclosure of Invention The utility model aims to solve the technical problems of overlarge temperature and pressure fluctuation range in an artificial chamber caused by the increase of energy storage density of an air storage reservoir of the working chamber, provides a temperature regulating system and an operation method of a compressed air energy storage chamber, and effectively controls the temperature and pressure fluctuation so as to ensure the safety and the circulation efficiency of the system and reduce the construction cost, and provides the following technical scheme: The utility model discloses a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged in the underground, a vertical shaft arranged at the top of the artificial chamber, an air circulation pipeline and a water pipeline, wherein an air inlet and an air outlet at two ends of the air circulation pipeline are respectively arranged oppositely along two sides of the artificial chamber, an axial flow fan is arranged in the air inlet of the air circulation pipeline, the water pipeline is arranged along the length direction of the vertical shaft and is arranged in the artificial chamber, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of a warm water tank and a water inlet of a factory circulating cooling water, the water outlet pipeline is communicated with a water inlet of a cold water