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CN-121993921-A - Adsorption refrigeration system and method based on radiation cooling technology

CN121993921ACN 121993921 ACN121993921 ACN 121993921ACN-121993921-A

Abstract

The invention relates to the technical field of refrigeration systems and discloses an adsorption refrigeration system and method based on a radiation cooling technology, wherein a condenser is used for condensing gaseous working fluid into liquid working fluid, an evaporator is used for evaporating the liquid working fluid into the gaseous working fluid to generate a refrigeration effect, a third radiation cooling device is arranged on the evaporator, a condensed water loop is used for conveying the liquid working fluid in the condenser to the evaporator, a first radiation cooling device is arranged on a first adsorption device, a second radiation cooling device is arranged on a first liquid water loop, a fourth radiation cooling device is arranged on a second adsorption device, and a fifth radiation cooling device is arranged on a second liquid water loop.

Inventors

  • XIA XIAOXIAO
  • SONG JIAHANG
  • YANG ZICHUN
  • CHEN GUOBING
  • ZOU ZIYI
  • Xie Luotao
  • WANG PENGTAO
  • Lei Chenbo
  • Hu Yangzhen

Assignees

  • 中国人民解放军海军工程大学

Dates

Publication Date
20260508
Application Date
20260205

Claims (9)

  1. 1. An adsorption refrigeration system based on radiant cooling technology, comprising: a condenser (1) for condensing a gaseous working fluid into a liquid working fluid; An evaporator (2) for evaporating a liquid working fluid into a gaseous working fluid to produce a refrigeration effect, said evaporator (2) being provided with third radiant cooling means (3); -a condensed water circuit (4) for delivering the liquid working fluid in the condenser (1) to the evaporator (2); The first adsorption device (5) is used for adsorbing the gaseous working fluid coming out of the evaporator (2) when in an adsorption state, and is used for desorbing the gaseous working fluid to enter the condenser (1) when in a desorption state, and a first radiation cooling device (6) is arranged on the first adsorption device (5); A first liquid water loop (7) arranged on the first adsorption device (5), wherein a second radiation cooling device (8) is arranged on the inlet path of the first liquid water loop (7); the second adsorption device (9) is used for desorbing the gaseous working fluid and entering the condenser (1) when in a desorption state, and is used for adsorbing the gaseous working fluid coming out of the evaporator (2) when in an adsorption state, and a fourth radiation cooling device (18) is arranged on the second adsorption device (9); The second liquid water loop (11) is arranged on the second adsorption device (9), and a fifth radiation cooling device (19) is arranged on the inlet path of the second liquid water loop (11).
  2. 2. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a first cooling water circuit (10) is provided on the condenser (1).
  3. 3. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a chilled water circuit (12) is provided on the evaporator (2).
  4. 4. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a first valve body (13) is provided in the communication line between the condenser (1) and the first adsorption device (5).
  5. 5. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a second valve body (14) is provided in the communication line between the condenser (1) and the second adsorption device (9).
  6. 6. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a third valve body (15) is provided in the communication line between the evaporator (2) and the first adsorption device (5).
  7. 7. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a fourth valve body (16) is provided in the communication line between the evaporator (2) and the second adsorption device (9).
  8. 8. An adsorption refrigeration system based on radiant cooling technology as in claim 1, wherein a fifth valve body (17) is provided on the condensate water circuit (4).
  9. 9. An adsorption refrigeration method based on a radiation cooling technology, based on the adsorption refrigeration system based on the radiation cooling technology as set forth in any one of claims 1 to 8, comprising the steps of: The liquid working fluid enters the evaporator (2), absorbs heat in the evaporator (2) to vaporize, simultaneously reduces the temperature of the chilled water, and simultaneously, the third radiation cooling device (3) strengthens heat exchange and promotes the heat dissipation of the evaporator (2); When the first adsorption device (5) is in an adsorption state and the second adsorption device (9) is in a desorption state, gaseous working fluid in the evaporator (2) enters the first adsorption device (5) for adsorption, meanwhile, the first radiation cooling device (6) and the second radiation cooling device (8) reduce the temperature of cooling water in the paths of the first adsorption device (5) and the first liquid water loop (7), the evaporation of the liquid water in the evaporator (2) is promoted, the temperature of the first liquid water loop (7) is reduced, the second adsorption device (9) utilizes the heat provided by hot water in the second liquid water loop (11) for desorption, the liquid working fluid is vaporized into gaseous working fluid, the desorbed gaseous working fluid enters the condenser (1) for condensation into liquid at the condensation temperature, and the generated heat is taken away by the cooling water through the return condensation water loop (4) to the evaporator (2); The second adsorption device (9) is in an adsorption state, when the first adsorption device (5) is in a desorption state, gaseous working fluid in the evaporator (2) enters the second adsorption device (9) for adsorption, meanwhile, the fourth radiation cooling device (18) and the fifth radiation cooling device (19) reduce the temperature of cooling water in the paths of the second adsorption device (9) and the second liquid water loop (11), liquid water in the evaporator (2) is promoted to evaporate, the temperature of the second liquid water loop (11) is reduced, the first adsorption device (5) utilizes heat provided by hot water in the first liquid water loop (7) for desorption, the liquid working fluid is vaporized into gaseous working fluid, the desorbed gaseous working fluid enters the condenser (1) for condensation into liquid at the condensation temperature, and the generated heat is taken away by the cooling water through the return condensation water loop (4) to the evaporator (2).

Description

Adsorption refrigeration system and method based on radiation cooling technology Technical Field The invention relates to the technical field of refrigeration systems, in particular to an adsorption refrigeration system and method based on a radiation cooling technology. Background In recent years, with the increasing severity of global energy crisis and environmental pollution problems, energy conservation and environmental protection become important development directions in the refrigeration technology field. Although the traditional compression refrigeration system has wide application, the problems of low energy utilization efficiency, obvious performance coefficient reduction under partial load working conditions, limited refrigeration capacity and the like exist. Particularly, in the occasion of needing to utilize low-grade energy sources (such as ship engine waste heat, industrial waste heat, solar energy and the like), the traditional refrigeration system is difficult to meet the high-efficiency and low-carbon refrigeration requirement. The adsorption refrigeration technology is used as a refrigeration mode capable of fully utilizing low-grade energy, and has obvious advantages in the aspects of energy cascade utilization and low-carbon refrigeration. The technology can utilize a low-grade heat source at 80-150 ℃ to refrigerate, and effectively reduces the requirement for high-grade electric energy. However, the existing adsorption refrigeration system still has the problem of limited refrigeration capacity, which restricts wider application. Therefore, increasing the refrigeration capacity of the adsorption refrigeration system is an important direction of current research. Disclosure of Invention The invention aims to provide an adsorption refrigeration system and method based on a radiation cooling technology, and aims to solve or improve at least one of the technical problems. In order to achieve the above purpose, the invention provides the following scheme that the adsorption refrigeration system based on the radiation cooling technology comprises: A condenser for condensing the gaseous working fluid into a liquid working fluid; An evaporator for evaporating the liquid working fluid into a gaseous working fluid to produce a refrigeration effect, the evaporator being provided with a third radiant cooling device; a condensate loop for delivering liquid working fluid in the condenser to the evaporator; The first adsorption device is used for adsorbing the gaseous working fluid coming out of the evaporator when in an adsorption state, and is used for desorbing the gaseous working fluid to enter the condenser when in a desorption state, and a first radiation cooling device is arranged on the first adsorption device; The first liquid water loop is arranged on the first adsorption device, and a second radiation cooling device is arranged on the inlet of the first liquid water loop; the second adsorption device is used for desorbing the gaseous working fluid and entering the condenser when in a desorption state, and is used for adsorbing the gaseous working fluid coming out of the evaporator when in an adsorption state, and a fourth radiation cooling device is arranged on the second adsorption device; The second liquid water loop is arranged on the second adsorption device, and a fifth radiation cooling device is arranged on the inlet of the second liquid water loop. Optionally, a first cooling water loop is arranged on the condenser. Optionally, a chilled water loop is arranged on the evaporator. Optionally, a first valve body is arranged on a communication pipeline between the condenser and the first adsorption device. Optionally, a second valve body is arranged on a communication pipeline between the condenser and the second adsorption device. Optionally, a third valve body is arranged on a communication pipeline between the evaporator and the first adsorption device. Optionally, a fourth valve body is arranged on a communication pipeline between the evaporator and the second adsorption device. Optionally, a fifth valve body is arranged on the condensate water loop. The invention also provides an adsorption refrigeration method based on the radiation cooling technology, which comprises the following steps: the liquid working fluid enters the evaporator, absorbs heat in the evaporator to evaporate, simultaneously reduces the temperature of the chilled water, and simultaneously enhances heat exchange by the third radiation cooling device to promote heat dissipation of the evaporator; The first adsorption device is in an adsorption state, when the second adsorption device is in a desorption state, gaseous working fluid in the evaporator enters the first adsorption device for adsorption, meanwhile, the first radiation cooling device and the second radiation cooling device reduce the temperature of cooling water in the inlet paths of the first adsorption device and the first liquid water loop, promote