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Room temperature barocaloric refrigeration machine based on piezocaloric effect

A refrigerator and thermal effect technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as the gap between solid-state phase-change refrigeration materials, achieve convenient operation, reduce heat loss, and improve uneven transmission of mechanical pressure Effect

Pending Publication Date: 2021-11-02
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a huge gap between the performance of solid-state phase-change refrigeration materials and liquid refrigerants, which has become one of the bottlenecks restricting the application of this technology

Method used

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  • Room temperature barocaloric refrigeration machine based on piezocaloric effect
  • Room temperature barocaloric refrigeration machine based on piezocaloric effect
  • Room temperature barocaloric refrigeration machine based on piezocaloric effect

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Embodiment Construction

[0029] In order to further understand the present invention, the present invention is described below in conjunction with examples, but the examples are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0030] The invention provides a room temperature press card refrigerator based on the barothermal effect, such as figure 1 shown. The press card refrigerator includes a high-precision high-pressure electric injection pump 1, a press card component 2, a heat exchange fluid, a cold end heat exchanger 3 and a hot end heat exchanger 4; the structure of each part is as follows:

[0031] like figure 2 As shown, the high-precision high-pressure electric injection pump (Beijing Yijie Material Technology Co., Ltd., HP350A) is used to provide constant pressure for the pressing element 2; The oil ports 205 are connected to each other, and are used for injecting pressurized oil into the cavity of ...

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Abstract

The invention discloses a room temperature barocaloric refrigeration machine based on a piezocaloric effect, and belongs to the technical field of refrigeration machines. The refrigeration machine comprises a high-precision high-pressure electric injection pump, a barocaloric element, heat exchange fluid, a cold-end heat exchanger and a hot-end heat exchanger. The phenomena of pressurization heat release and pressure relief heat absorption can be generated due to phase change of a barocaloric working medium under the action of the high-pressure injection pump, and the heat exchange fluid flows in a reciprocating mode between barocaloric refrigeration working media to carry heat and cold. The high-precision high-pressure electric injection pump provides pressure for the barocaloric refrigeration cycle, and the pressure is output constantly. The pressurization mode is liquid pressure, the defect that mechanical pressure transmission is uneven is well overcome, pressurization oil serves as the heat exchange fluid at the same time and makes direct contact with a sample, heat driven by pressure and cold driven by pressure are directly brought into the hot-end heat exchanger and the cold-end heat exchanger to complete the cycle, and heat loss is reduced.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a room-temperature press-card refrigerator based on the barothermal effect. Background technique [0002] In modern society, refrigeration technology has penetrated into various production technologies and scientific fields. However, common refrigerants such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), which are widely used in traditional gas compression technologies, are harmful to the ozone layer. There are varying degrees of destructive effects, which do not conform to the current health concepts of environmental protection, greenness, and energy conservation. [0003] In this context, the development and research of environmentally friendly refrigeration technology has become an important research direction for refrigeration technology innovation. At present, there is a new solid-state research refrigeration technology in the research and develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B23/00F25B49/00
CPCF25B23/00F25B49/00F25B21/00C09K5/14
Inventor 李昺宋睿琪张志东
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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