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Refrigeration cycle system

A circulation system and refrigerant technology, applied in the field of compressors, can solve the problem of high energy consumption of air supply for air suspension bearings

Pending Publication Date: 2021-12-14
QINGDAO HAIER SMART TECH R & D CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a refrigeration cycle system that can at least solve any of the above-mentioned problems
[0006] Another further object of the present invention is to solve the problem of excessive energy consumption of air supply for air suspension bearings

Method used

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Embodiment Construction

[0025] figure 1 is a schematic diagram of a refrigeration cycle system according to an embodiment of the present invention.

[0026] refer to figure 1 , in some embodiments, the refrigerant circulation system includes: a first compressor 10 , an evaporator 20 , a condenser 30 , an expansion valve 40 and an air supply pipeline 100 . The first compressor 10 sucks the gaseous refrigerant in the evaporator 20, compresses the gaseous refrigerant into a high-temperature and high-pressure state and inputs it into the condenser 30, and the high-temperature and high-pressure refrigerant is converted into a high-temperature and high-pressure liquid refrigerant after being condensed by the condenser 30, After being depressurized by the expansion valve 40, it becomes a low-temperature and low-pressure liquid refrigerant and enters the evaporator 20. The gaseous refrigerant is evaporated by the evaporator 20 to become a low-temperature and low-pressure gaseous refrigerant, and then return...

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Abstract

The invention provides a refrigeration cycle system. The refrigeration cycle system includes a first compressor and a gas supply pipeline; the first compressor is configured to suck and compress a refrigerant of a low pressure side part in a refrigeration cycle, and then discharge the compressed refrigerant, the first compressor includes a gas suspension bearing and a lubricating gas inlet, and the gas suspension bearing is configured to support a rotor of the compressor by using lubricating gas provided by the lubricating gas inlet; and the gas supply pipeline is connected between the low pressure side part and the lubricating gas inlet and used for supplying part of refrigerant gas in the low pressure side part to the lubricating gas inlet to serve as lubricating gas. The refrigeration cycle system is independently provided with the gas supply pipeline, the gas supply pipeline is used for independently providing the lubricating gas for lubricating the gas suspension bearing, and the problem that in the prior art, a gas suspension bearing centrifugal compressor is slow in starting is solved. The gas supply pipeline obtains the lubricating gas from the low pressure side part of the system, so that the energy consumption required for supplying gas to the gas suspension bearing is also reduced.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a refrigeration cycle system. Background technique [0002] The frictional resistance between the gas and the rotor in the hydrostatic gas bearing is small. Compared with the magnetic bearing, it does not require a complicated control system, and has a simple structure and low cost. Therefore, it has been used in centrifugal compressors in recent years. Since the static pressure gas bearing uses an external gas supply to provide its suspension pressure, in order to make the static pressure gas bearing work stably, a reasonable gas supply system design is particularly important. [0003] Among the existing gas supply schemes, one is to use a liquid pump to extract the liquid refrigerant from the condenser, and then pass through the throttling device and the gas-liquid separator to the static pressure gas bearing. The structure of the whole system is relatively complicated. Due to the th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/20F25B41/40F25B31/00
CPCF25B31/002F25B2400/074F25B2400/0751Y02B30/70
Inventor 殷纪强朱万朋刘增岳俞国新刘洋韩聪李思茹
Owner QINGDAO HAIER SMART TECH R & D CO LTD
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