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Internal overlapping refrigerator system with air supplementing compressor and control method

A technology for compressors and refrigerators, used in household refrigeration devices, applications, household appliances, etc., can solve the problems of small system volume cooling capacity, large thermodynamic loss, and high exhaust temperature, improve energy efficiency, and reduce irreversible heat transfer losses. , the effect of improving energy efficiency

Active Publication Date: 2018-10-23
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, there is still a large thermodynamic loss in the existing refrigerator system, resulting in a large energy consumption of the refrigerator
In addition, in the existing refrigerator system, there are still disadvantages such as high exhaust temperature, low evaporation pressure, and small cooling capacity of the system volume.

Method used

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  • Internal overlapping refrigerator system with air supplementing compressor and control method
  • Internal overlapping refrigerator system with air supplementing compressor and control method
  • Internal overlapping refrigerator system with air supplementing compressor and control method

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 and figure 2 As shown, in the present invention, the internal cascade refrigerator system using the gas supply compressor adopts a binary non-azeotropic mixed working medium, and the high-temperature and high-pressure gas-phase refrigerant compressed by the gas supply compressor 101 enters the condenser 102 to condense and supercool (2 -3); after being throttled by the first electronic expansion valve 103, the supercooled refrigerant enters the gas-liquid separator 105 after being partially evaporated by the refrigeration evaporator 104, and the refrigerant realizes high and low boiling points in the gas-liquid separator 105 For the separation of working fluid, the gas-phase refrigerant is a low-boiling point working medium, and the liquid-phase refrigerant is a high-boiling point working medium (3-4-5-...

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Abstract

The invention relates to an internal overlapping refrigerator system with an air supplementing compressor and a control method. By means of the system, a binary non-azeotropic mixing working medium isadopted, a gas-liquid separator is used for achieving separation of high and low boiling point working media, it is guaranteed that more low boiling point working media enter a refrigeration evaporator, the air suction pressure of the compressor is improved, and the power dissipation of the compressor is reduced; the air supplementing compressor is used in the refrigerator system, the exhaust gastemperature of the compressor can be effectively reduced, the efficiency and reliability of the compressor are improved, in addition, by using the air supplementing compressor, the irreversible heattransfer loss of the refrigerator evaporator can be greatly reduced, and the system energy consumption is further reduced; a traditional refrigerator system has the shortcomings that the compressor pressure is large, the exhaust gas temperature is high, and the energy efficiency is low, the internal overlapping refrigerator system uses the air supplementing compressor and the internal overlappingtechnology, the problems can be effectively solved; and the invention further provides a feasible and effective control method, and therefore the system is guaranteed to run efficiently and reliably all the like.

Description

technical field [0001] The invention relates to the technical field of refrigerator refrigeration equipment, in particular to an internal cascade refrigerator system and a control method using an air supply compressor. Background technique [0002] As a widely used refrigeration equipment, the optimization of its structure and performance has always been a research hotspot. However, in practical applications, there is still a relatively large thermodynamic loss in the existing refrigerator system, resulting in relatively large energy consumption of the refrigerator. In addition, in the existing refrigerator system, there are still disadvantages such as high exhaust temperature, low evaporation pressure, and small cooling capacity of the system volume. Studies have shown that the use of supplementary air compressor technology can reduce the discharge temperature of the compressor and improve the energy efficiency of the system, while the application of cascade technology can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00
CPCF25D29/00
Inventor 樊超超晏刚鱼剑琳
Owner XI AN JIAOTONG UNIV
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