Ejector refrigeration cycle device

A refrigeration cycle and ejector technology, which is used in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of narrow operating condition range and low mixing efficiency of ejector refrigeration cycle inverter air conditioners, and achieve simple structure and material saving. and production cost effects

Active Publication Date: 2017-01-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The existing ejection refrigeration cycle inverter air conditioner is suitable for a narrow range of working conditions;
[0006] 2. The mixing state in the mixing chamber of the ejector is gas-liquid two-phase mixing, and the mixing efficiency is low

Method used

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  • Ejector refrigeration cycle device
  • Ejector refrigeration cycle device
  • Ejector refrigeration cycle device

Examples

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Embodiment

[0041] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, preferably, this embodiment provides an ejector refrigeration cycle device suitable for variable working conditions, including a compressor 101, a first four-way reversing valve 102, an outdoor heat exchanger 103, and a second four-way Reversing valve 104, first electronic expansion valve 105, gas-liquid separator 106, second electronic expansion valve 107, indoor heat exchanger 108, ejector 109; ejector 109 includes: ejector nozzle 201, ejector The ejector receiving chamber 202, the ejector mixing chamber 203, and the ejector diffusion chamber 204.

[0042] Combine figure 1 , Figure 4 And cooling operating pressure enthalpy lgP-h figure 2 During the cooling operation of the system, the high-temperature and high-pressure refrigerant is discharged from the compressor 101 (state point 1), enters the outdoor heat exchanger 103 through the first four-way reversing valve 102, and becomes low-temperature and high-p...

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Abstract

The invention provides an ejector refrigeration cycle device, including a compressor, an outdoor heat exchanger, a gas-liquid separator, an indoor heat exchanger, an ejector, a first electronic expansion valve and a second electronic expansion valve; the exhaust port of the compressor passes through The pipeline is connected to the outdoor heat exchanger, the other end of the outdoor heat exchanger is connected to the first electronic expansion valve through the pipeline, and the other end of the first electronic expansion valve is connected to the gas-liquid separator through the pipeline; the gas-liquid separator has a gas outlet and a liquid outlet , the gas outlet is connected to the first inlet of the ejector through a pipeline, and the liquid outlet is connected to the second electronic expansion valve through a pipeline; the other end of the second electronic expansion valve is connected to the indoor heat exchanger; the other end of the indoor heat exchanger is connected to the ejector The second inlet of the ejector; the outlet of the ejector is connected to the suction port of the compressor through a pipeline. When the working condition of the air conditioner changes, the first electronic expansion valve is used to adjust the state and flow rate of the first inlet of the ejector, which expands the scope of the ejector to adapt to the working conditions, improves the application efficiency of the ejector, and improves the energy efficiency of the air conditioner.

Description

Technical field [0001] The present invention relates to the technical field of air conditioning refrigeration cycle devices, in particular to an ejector refrigeration cycle device. Background technique [0002] The vapor compression / pilot refrigeration system is an effective energy-saving refrigeration system, which can reduce throttling and expansion loss, reduce the compressor pressure ratio, and greatly improve the efficiency of the refrigeration system. Its utilization potential is huge. At present, there is no practical application of ejector in the household air-conditioning industry, and it is only reported in some scientific papers. However, the application conditions of the ejector in the vapor compression / ejection refrigeration system in the existing scientific papers are very narrow. The design idea is point-to-point design, and the ejector is designed according to the specific refrigeration cycle conditions (evaporation temperature, condensation temperature, etc.) Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B41/00F25B41/06F25B41/325F25B41/40
CPCF25B13/00F25B41/00F25B2341/0011F25B2400/23
Inventor 魏广飞吴俊鸿
Owner GREE ELECTRIC APPLIANCES INC
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