Low-temperature refrigerator with double-absorber

A low-temperature refrigerator and double-absorber technology, which is applied in the direction of refrigerators, adsorption machines, refrigeration and liquefaction, etc., can solve the problems of overall performance limitations, and achieve the effects of improving performance efficiency, high refrigeration efficiency, and low refrigeration temperature

Inactive Publication Date: 2011-05-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Accordingly, the overall performance of its loop is still somewhat limited

Method used

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  • Low-temperature refrigerator with double-absorber
  • Low-temperature refrigerator with double-absorber

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited thereto.

[0023] like figure 1 As shown, a double absorber cryogenic refrigerator, including:

[0024] Condenser 11, vapor-liquid separator 12, first refrigerant heat exchanger 13, second refrigerant heat exchanger 14, third refrigerant heat exchanger 18, first refrigerant decompression device 15, second refrigeration A self-cascading refrigeration module composed of agent decompression device 17 and evaporator 16;

[0025] And by the generator 1, the first absorber 2, the second absorber 3, the first solution pump 4, the second solution pump 5, the first solution decompression device 6, the second solution decompression device 7, the mixer 8, A solution circulation module composed of a solution heat exchanger 9 and a distributor 10.

[0026] In the above-mentioned self-cascading refrigeration module, the out...

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Abstract

The invention discloses a low-temperature refrigerator with a double-absorber, which comprises an automatic overlaid refrigerating module and a solution circulating module. The solution circulating module adopts a double-absorber. In the invention, the low-temperature refrigerator with the double-absorber avoids irreversible loss of the refrigerating fluid in a mixing process and intensifies the absorption process of the absorber by using the characteristic of azeotropic refrigerating fluid based on the principle of automatic overlaid refrigeration so as to acquire lower refrigeration temperature and higher refrigeration efficiency, and the low-temperature refrigerator with the double-absorber can be driven by renewable heat energy, such as solar energy, terrestrial heat, industrial waste heat, afterheat and the like or low-level heat energy so as to acquire the refrigeration temperature below -60 to -70 DEG C that cannot be reached in the conventional absorbing type refrigerator, thereby greatly widening the application range of the absorbing type refrigerator in the field of cryogenic refrigeration. The low-temperature refrigerator with the double-absorber has the advantages of wide refrigeration temperature range, high efficiency, stable and reliable performance and compact structure.

Description

technical field [0001] The invention belongs to the refrigeration field, and in particular relates to a low-absorption low-temperature refrigerator. Background technique [0002] Absorption refrigeration can be powered by steam, gas, fuel oil, hot water and other forms of heat energy, especially renewable energy and low-grade heat sources such as solar energy, geothermal heat, industrial waste heat and waste heat can be used. Absorption refrigeration is a refrigeration method that has the dual advantages of energy saving and environmental protection because it generally does not use such working fluids, including CFCs or HCFCs, which have a destructive effect on the atmospheric ozone layer. [0003] Although traditional absorption refrigerators (such as lithium bromide-water, ammonia-water absorption refrigerators) have been widely used, they still have many shortcomings. For example, in lithium bromide-water absorption refrigerators, the solution is highly corrosive and ea...

Claims

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Application Information

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IPC IPC(8): F25B15/02F25B27/00
CPCY02B30/62Y02A30/27
Inventor 何一坚高旭陈光明唐黎明
Owner ZHEJIANG UNIV
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