An immersion evaporator and a refrigeration device

CN122305686APending Publication Date: 2026-06-30BEIJING YINGWEIKE NEW ENERGY TECHNOLOGY RESEARCH INSTITUTE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING YINGWEIKE NEW ENERGY TECHNOLOGY RESEARCH INSTITUTE CO LTD
Filing Date
2024-12-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The heat transfer insulation bundles in existing submerged evaporators have difficulty boiling and evaporating in liquid refrigerant, resulting in a low boiling heat transfer coefficient and low heat transfer efficiency in the refrigerant pool inside the shell.

Method used

The design employs a porous structure, including a first pore section and a second pore section, which are distributed sequentially along the direction away from the heat transfer barrier. The pore space density of the first pore section is less than that of the second pore section. By combining the design of the heat transfer barrier and the porous structure, the pore distribution is optimized to promote the discharge of refrigerant vapors.

Benefits of technology

The heat exchange efficiency of the submerged evaporator was improved by optimizing the pore distribution and arrangement, enhancing the pool boiling heat exchange performance within the shell, and thus improving the cooling effect.

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Abstract

This invention discloses a submerged evaporator and a refrigeration device, comprising: a shell having a receiving cavity; a heat transfer partition located in the receiving cavity to divide the space of the receiving cavity into a refrigerant cavity and a cooling medium flow cavity, the refrigerant cavity for containing refrigerant and the cooling medium flow cavity for supplying cooling medium; and a porous structural member disposed on the side of the heat transfer partition facing the refrigerant cavity and in heat transfer contact with the heat transfer partition; along the direction away from the heat transfer partition, the porous structural member includes at least a first pore portion and a second pore portion arranged sequentially, the pore space density of the first pore portion being less than that of the second pore portion, to facilitate the discharge of refrigerant bubbles. Along the direction away from the heat transfer partition, the pore space density of the porous structural member tends to increase, which is beneficial to the movement of refrigerant bubbles and makes it easier for refrigerant bubbles to be discharged. Therefore, the boiling heat transfer performance inside the shell is enhanced, and the heat transfer efficiency of the submerged evaporator is improved.
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