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Refrigerating circulation system of high-temperature air conditioner and high-temperature air conditioner

A circulation system and refrigeration cycle technology, applied in the direction of refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve the problems of not greatly increasing the cost of air conditioning, poor air conditioning capacity and performance, etc., to reduce the workload and reduce the workload Effect

Active Publication Date: 2017-06-06
MIDEA GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-temperature air-conditioning refrigeration cycle that solves the problem that the charge amount of the air-conditioner in the T3 working condition is unfavorable to the air-conditioning capacity and performance without greatly increasing the cost of the air-conditioning. System and method and high temperature air conditioner

Method used

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  • Refrigerating circulation system of high-temperature air conditioner and high-temperature air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0031] like figure 1 As shown, the refrigerating cycle system of a high-temperature air conditioner in this embodiment includes a compressor 1, an outdoor heat exchanger 2, a capillary tube 3, an indoor heat exchanger 4, and a gas-liquid separator 5 that are sequentially connected to form a circuit; wherein, the compressor The working medium outlet of 1 is connected with the working medium inlet of outdoor heat exchanger 2 through pipes, the working medium outlet of outdoor heat exchanger 2 is connected with the working medium inlet of indoor heat exchanger 4 through capillary 3, and the indoor heat exchanger 4 The working medium outlet of the gas-liquid separator 5 communicates with the working medium inlet of the gas-liquid separator 5 through a pipeline, and the working medium outlet of the gas-liquid separator 5 communicates with the working medium inlet of the compressor 1 through a pipeline. The refrigerating cycle system of a high-temperature air conditioner in this emb...

Embodiment 2

[0036] like figure 1 As shown, a refrigeration cycle method of a high-temperature air conditioner in this embodiment includes the following steps:

[0037] S1, under high-temperature conditions, a part of the working fluid discharged from the compressor 1 is circulated sequentially through the circulation loop formed by the outdoor heat exchanger 2, the capillary tube 3, the indoor heat exchanger 4, the gas-liquid separator 5 and the compressor 1;

[0038] S2, another part of the working fluid discharged from the compressor 1 enters the gas-liquid separator 5 through the pressure relief device, and the gas-liquid separator 5 performs gas-liquid separation on the part of the working fluid.

[0039] In S2 of this embodiment, another part of the compressed working fluid discharged from the compressor 1 passes through the unloading valve 6 and the pressure relief capillary 7 in sequence, and then flows into the working fluid discharged from the indoor heat exchanger 4 after being ...

Embodiment 3

[0043] like figure 1 As shown, a high-temperature air conditioner in this embodiment includes the refrigeration cycle system described in Embodiment 1. figure 1 The direction of the arrow in is the flow direction of the working fluid.

[0044] The working principle of the present invention is: in normal working conditions (outdoor temperature is 20°C-40°C), the unloading valve does not work and is in a closed state, and the working fluid circulates according to the normal working conditions; in high temperature working conditions (outdoor temperature is When the discharge pressure of the compressor is greater than the setting pressure of the unloading valve, most of the working fluid discharged from the compressor 1 still flows into the outdoor heat exchanger for regular circulation, the unloading valve is opened, and it is in working condition, a small amount The working fluid passes through the unloading valve, throttling through the pressure relief capillary to exchange he...

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Abstract

The invention relates to a refrigerating circulation system of a high-temperature air conditioner and the high-temperature air conditioner. The refrigerating circulation system comprises a compressor, an outdoor heat exchanger, a caterpillar tube, an indoor heat exchanger and a gas-liquid separator, all of which are sequentially connected to form a loop. The refrigerating circulation system further comprises a pressure releasing device, and the two ends of the pressure releasing device communicate with a working medium outlet of the compressor and a working medium inlet of the gas-liquid separator through pipelines correspondingly. Due to the fact that the pressure releasing device is arranged between the working medium outlet of the compressor and the working medium inlet of the gas-liquid separator, part of working media can be converged with outlet working media of the indoor heat exchanger through the pressure releasing device when the exhaust pressure of the compressor is increased, and the workload of the outdoor heat exchanger can be reduced.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a refrigeration cycle system and method for a high temperature air conditioner and a high temperature air conditioner. Background technique [0002] Due to the need to meet certain energy efficiency requirements for the current high-temperature air conditioner under the T3 working condition, it is necessary to sacrifice part of the capacity and energy efficiency under the T1 working condition, because the refrigerant charge under the T3 working condition is less than that under the optimal performance condition under the T1 working condition. At the same time, when there is less refrigerant, the air conditioner is more prone to water blowing under condensation conditions. In the prior art, the above two difficulties can generally be solved by increasing the heat exchange area of ​​the outdoor unit or improving the structure of the compressor, but this will undoubtedly increase the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/04F25B41/06F25B41/20F25B41/30
CPCF25B2600/0271F25B41/37F25B41/20
Inventor 杨俊雷华翘
Owner MIDEA GRP CO LTD
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