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Adsorption type refrigeration system and operation method thereof

A technology of adsorption refrigeration and operation method, applied in refrigerators, refrigeration components, adsorption machines, etc., can solve problems such as bulky volume and complex system, improve structure compactness, improve adsorption time, and reduce the time of desorption reaction. Effect

Inactive Publication Date: 2021-06-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese invention patents with patent numbers CN201510703864.4 and CN201310019695.3, by adding auxiliary equipment such as water tanks, water pumps and water valves or increasing the number of adsorption beds and valves, the waste heat inside the adsorption refrigerator can be recovered, thereby improving the energy efficiency of the system. But it also makes the system more complex and bulky

Method used

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  • Adsorption type refrigeration system and operation method thereof
  • Adsorption type refrigeration system and operation method thereof

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Effect test

Embodiment 1

[0039] The present invention provides an adsorption refrigeration system, which mainly includes a condenser 1, a first adsorption bed 2, a second adsorption bed 3, an evaporator 4, a throttling device 21, a refrigerant control valve group, a waterway switching valve group, etc. The refrigerant control valve group includes a refrigerant output valve and a refrigerant input valve, and the waterway switching valve group includes a heating fluid switching valve 19 , a cooling fluid switching valve 20 and a first communication valve 9 . The refrigerant output valve and the refrigerant input valve are preferably four two-way control valves, wherein the refrigerant output valve includes a first refrigerant output valve 6 and a second refrigerant output valve 18, and the refrigerant input valve includes a first refrigerant output valve 6 and a second refrigerant output valve 18. input valve 7 and the second refrigerant input valve 17 .

[0040] The first communication valve 9 is used ...

Embodiment 2

[0056] This embodiment 2 is formed on the basis of embodiment 1. By optimizing the setting of the water circuit switching valve group and adding the control valve of the heating pipeline, the entry and exit of cold and hot fluids are controlled by independent valves, which improves the stability of the system operation. sex. specifically:

[0057] Such as figure 2 As shown, a second communication valve 11, a third communication valve 12 and a fourth communication valve 14 are added to the system. After the second communication valve 11, the third communication valve 12 and the fourth communication valve 14 are connected in sequence, The second communication valve 11 realizes the re-communication between the first adsorption bed 2 and the second adsorption bed 3, so that the second communication valve 11 and the first communication valve 9 form a parallel relationship to improve the stability of the system; on the other hand, through the third The communication valve 12 and ...

Embodiment 3

[0075] Embodiment 3 is formed on the basis of Embodiment 1 or Embodiment 2. By designing double adsorption steps in the operation cycle of the refrigeration system, the adsorption time of the adsorption bed is further increased, the refrigeration efficiency of the refrigeration system is improved, and the structural size is reduced. specifically:

[0076] The adsorption procedure of the first adsorption bed and / or the adsorption procedure of the second adsorption bed also include double adsorption steps, preferably both the adsorption procedure of the first adsorption bed and the adsorption procedure of the second adsorption bed include double adsorption steps. The double adsorption steps are both located after the pre-cooling adsorption step. The circulation path of the hot and cold fluids in the double adsorption step is the same as that in the pre-cooling adsorption step, the main difference is that the opening states of the valves of the refrigerant control valve group are...

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Abstract

The invention relates to an adsorption type refrigeration system and an operation method thereof in the technical field of refrigeration. The adsorption type refrigeration system comprises a condenser, an evaporator, a throttler, an adsorption bed, a refrigerant control valve group and a water path switching valve group, the adsorption bed comprises a first adsorption bed and a second adsorption bed, the refrigerant control valve group comprises a refrigerant output valve and a refrigerant input valve, the water path switching valve group comprises a cooling fluid switching valve, a heating fluid switching valve and a first communication valve, a cooling fluid of the condenser is conveyed to the first adsorption bed or the second adsorption bed through the cooling fluid switching valve, a heating fluid is conveyed to the first adsorption bed or the second adsorption bed through the heating fluid switching valve, the first adsorption bed communicates with the second adsorption bed through the first communicating valve, the first communicating valve communicates with the heating fluid switching valve, refrigerant desorbed by the first adsorption bed or the second adsorption bed is conveyed into the condenser through the refrigerant output valve, and the condenser conveys the refrigerant into the evaporator through the throttler. According to the adsorption type refrigeration system and the operation method, the refrigerating capacity and the structure compactness of the system are effectively improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to an adsorption refrigeration system and its operating method. Background technique [0002] With the increasingly serious energy and environmental problems, the application of traditional mechanical compression refrigeration technology is subject to more and more restrictions. Green and energy-saving refrigeration technology has become the development focus of the refrigeration industry today. Adsorption refrigeration has become a popular green and energy-saving refrigeration technology due to its advantages of heat-driven and environmentally friendly refrigerants. [0003] Adsorption refrigeration technology is based on the adsorption and desorption reactions of adsorbate (ie, refrigerant) and adsorbent. However, the rates of adsorption and desorption reactions of the same adsorbate-adsorbent working fluid pair are quite different, which leads to the phenomenon that the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B17/02F25B41/20F25B41/30F25B49/04
CPCF25B17/02F25B49/046Y02B30/00Y02A30/27
Inventor 潘权稳王如竹
Owner SHANGHAI JIAO TONG UNIV
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