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What is the reason why the low pressure value of industrial chillers is generally high  

Update:06-04-2021
Summary:

In the application of industrial refrigeration, the chi […]

In the application of industrial refrigeration, the chiller is used in conjunction with production and processing equipment, so it runs for a long time. If the customer lacks professional maintenance and routine equipment maintenance for the chiller in daily life, and less There is periodic replacement of consumables, even after the installation is complete, the frequency of failure of the chiller will be very high, so I will teach you some about the troubleshooting and repair of the chiller. Methods, such as how to judge and analyze the possible causes if the pressure on the low pressure side of the chiller is high.
If the chilled water temperature of the medium on the side that needs to be cooled is too high when the chiller is turned on, it may be hot water above 40℃, then the low pressure value of the refrigerant of the chiller will be very high. After continuous operation, the chilled water temperature will slowly drop, and the low pressure value of the refrigerant of the chiller will gradually decrease; if the refrigerant charge of the chiller is added too much, the high pressure and low pressure values ​​of the chiller will be biased. High situation.
If the capillary tube or expansion valve of the throttling device of the industrial chiller is damaged, and the refrigerant throttling and pressure reduction failure occurs, the low pressure value of the refrigerant of the industrial chiller will be higher; if the high and low pressure values ​​are not obvious when the industrial chiller is started up and running When the change, that is, there is no compression ratio, and the high and low pressure values ​​of the industrial chiller in the shutdown state are similar, it may be that the compression components in the compressor are damaged, causing the refrigeration compressor to fail to compress.

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