A Single-Stage Vapor Compression Cycling System with Ejector Subcooling and Efficiency Enhancement

A vapor compression and circulation system technology, applied in irreversible cycle compressors, compressors, fluid circulation arrangements, etc., can solve the problems of system complexity, increase manufacturing costs, etc. Effect

Active Publication Date: 2016-04-06
XI AN JIAOTONG UNIV
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Problems solved by technology

However, on the one hand, this method needs to add auxiliary compressors and other auxiliary components, which causes the complexity of the system, and on the other hand, it will also significantly increase the manufacturing cost

Method used

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  • A Single-Stage Vapor Compression Cycling System with Ejector Subcooling and Efficiency Enhancement
  • A Single-Stage Vapor Compression Cycling System with Ejector Subcooling and Efficiency Enhancement

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, the present invention is a single-stage vapor compression cycle system with ejector supercooling and efficiency enhancement, a single-stage vapor compression cycle system with ejector supercooling efficiency enhancement, including a condenser 102, and the outlet of the condenser 102 The liquid refrigerant is divided into two paths, one liquid refrigerant outlet is connected to the nozzle inlet of the ejector 104 through the mechanical pump 103; the injected refrigerant inlet of the ejector 104 is connected to the saturated gas refrigerant outlet of the flasher 106; The gas-liquid two-phase refrigerant at the outlet of the ejector 104 is mixed with the gas refrigerant at the outlet of the compressor 101 and then connected to the inlet of the condenser 102; the other liquid refrigerant at the outlet of ...

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Abstract

A single-stage vapor compression cycle system with ejector subcooling and efficiency enhancement. The liquid refrigerant at the outlet of the condenser is divided into two paths, and one path of liquid refrigerant outlet is connected to the nozzle inlet of the ejector through a mechanical pump; The refrigerant inlet is connected to the saturated gaseous refrigerant outlet of the flash evaporator; the gas-liquid two-phase refrigerant at the outlet of the ejector is mixed with the gaseous refrigerant at the compressor outlet and then connected to the inlet of the condenser; the other liquid refrigerant at the outlet of the condenser The refrigerant is connected to the inlet of the flash evaporator after passing through the first throttling mechanism; the refrigerant at the outlet of the flash evaporator is divided into two paths, one path of saturated gaseous refrigerant is ejected by the ejector; the other path of saturated liquid refrigerant is connected to the second throttling mechanism The inlet of the second throttling mechanism is connected to the inlet of the compressor after passing through the evaporator; the present invention can improve the existing single-stage vapor compression by adding ejector and mechanical pump in the single-stage vapor compression circulation system. Refrigeration and heating performance of refrigeration cycle system.

Description

technical field [0001] The invention belongs to the technical field of refrigeration and heat pumps, and in particular relates to a single-stage vapor compression cycle system used for supercooling efficiency of ejectors of refrigeration and heat pump devices. Background technique [0002] Vapor compression refrigeration (heat pump) cycles are widely used in refrigerators, air conditioners and heat pump systems. It has the characteristics of simple system structure, compactness and rapid cooling or heating. Especially in recent years, with the rapid growth of energy demand, the increasingly prominent environmental and climate issues and the development of low-carbon economy, higher requirements are put forward for vapor compression refrigeration (heat pump) technology in terms of energy saving and environmental protection. However, in practical applications, due to the large thermodynamic loss in the existing cycle system, the performance of the refrigeration (heat pump) sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B9/08F25B41/00F25B41/40
CPCF25B2341/0012F25B2400/23
Inventor 鱼剑琳朱琳邢美波
Owner XI AN JIAOTONG UNIV
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