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commercial refrigeration check valve and accumulator function
commercial refrigeration check valve and accumulator function
commercial refrigeration check valve function: because there is no internal low-pressure valve plate, in order to make the compressor stop when the commercial refrigeration refrigeration system has high pressure, The low pressure can quickly balance to start again, and to prevent the high-pressure vapor in the compressor from flowing back to the evaporator after shutdown, causing the evaporator temperature to rise too quickly, a one-way connection between the compressor suction pipe and the evaporator pipe valve. The role of the
accumulator: The characteristics of the rotary compressor determine that when it is running, 20% of the refrigerant equivalent to the amount of lubricating oil is dissolved in the lubricating oil; therefore, the charge of commercial refrigeration must include the dissolved lubrication The part in oil. However, during shutdown, part of the refrigerant dissolved in the commercial refrigeration lubricating oil escapes. When starting, the refrigerant is excessive, and the liquid is sucked into the cylinder to form liquid compression. For this reason, the compressor suction pipe (low pressure pipe) ) There is a reservoir on top to play a buffer role. The function of the
oil-liquid separator: It divides the gaseous refrigerant and the refrigerating oil output from the evaporator into two paths, so that the gaseous refrigerant is directly sent to the compressor return pipe, and the refrigerated oil is first stored in the commercial refrigeration oil-liquid separator. Oil storage area. Because the rotary compressor has less oil and more oil, if the flow is not divided, the excessive oil will block the capillary tube with the flow of commercial refrigeration refrigerant, forming an oil blockage, and affecting refrigeration.
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