Multi-temperature refrigerator based on large-glide temperature non-azeotropic working medium

A non-azeotropic, working medium technology, applied in household refrigerators, compressors with multiple evaporators, coolers, etc., can solve the problem of large irreversible losses in single cycle, inaccurate temperature control, complex double cycle system, etc. problem, to achieve the effect of increased Carnot cycle efficiency, precise temperature control, and reduced irreversible loss of the system

Active Publication Date: 2015-05-13
SOUTHEAST UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] technical problem: The technical problem to be solved by the present invention is to provide a multi-temperature refrigerator based on a large-slip temperature zeotropic working medium, which can realize multiple evaporation temperatures...

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  • Multi-temperature refrigerator based on large-glide temperature non-azeotropic working medium

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Embodiment Construction

[0019] The technical solution of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0020] Such as figure 1 As shown, a kind of multi-temperature refrigerator based on large-slip temperature non-azeotropic working medium of the present invention includes a compressor 1, an air-cooled condenser 2, a first heat exchanger 3, a second heat exchanger 4, a dry filter Device 5, capillary tube 6, first evaporator 7, first electric regulating valve 8, first gas-liquid separator 9, second evaporator 10, second electric regulating valve 11, third evaporator 12, third electric regulating valve The valve 13, the fourth evaporator 14, the fourth electric regulating valve 15 and the second gas-liquid separator 16, the non-azeotropic working medium flows in the multi-temperature refrigerator through the pipeline. The outlet end of compressor 1 is connected with the inlet end of air-cooled condenser 2, and the outlet end...

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Abstract

The invention discloses a multi-temperature refrigerator based on large-glide temperature non-azeotropic working medium. The multi-temperature refrigerator based on the large-glide temperature non-azeotropic working medium comprises a compressor, an air cooling condenser, a first heat exchanger, a second heat exchanger, a drying filter, a capillary, a first evaporator, a first electric adjustment valve, a first air-liquid separator, a second evaporator, a second electric adjustment valve, a third evaporator, a third electric adjustment valve, a fourth evaporator, a fourth electric adjustment valve and a second air-liquid separator, wherein the outlet end of the first evaporator is connected with the inlet of the first air-liquid separator, the outlet end of the fourth evaporator is connected with the second inlet end of the first heat exchanger, the second outlet end of the first heat exchanger is connected with the inlet end of the second air-liquid separator, the second outlet end of the first air-liquid separator is connected with the second inlet end of the second heat exchanger, and the second outlet end of the second heat exchanger is connected with the inlet end of the second air-liquid separator. The multi-temperature refrigerator based on the large-glide temperature non-azeotropic working medium resolves the problems that a single cycle is irreversible and causes serious loss, and temperature control is not accurate.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and relates to a multi-temperature refrigerator based on a non-azeotropic working medium with a large slip temperature. Background technique [0002] At present, the cycles used by multi-temperature refrigerators can be roughly divided into: a) single cycle; b) compressor double cycle; c) separate double cycle; d) bypass double cycle. Among them, the evaporation temperature of the freezer is uniformly used in the single cycle, and the heat transfer temperature difference is large, the irreversible loss is large, and the temperature control is not accurate. The dual cycle of the compressor can realize the independent control of the dual temperature, but the selected compressor is small, the efficiency is reduced, the cost is increased, and the system is complicated. The discrete double circulation cannot provide cooling capacity to multiple evaporators at the same time, and the temperature...

Claims

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Application Information

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IPC IPC(8): F25B5/02F25B41/04F25B41/20
CPCF25B5/02F25D11/022F25B41/20
Inventor 刘剑黄世芳徐洁月张小松
Owner SOUTHEAST UNIV
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