• Common faults of cold storage equipment
    Common faults of cold storage equipment Jun 08, 2022
    1. Refrigerant leakage: After the refrigerant leaks in the system, the cooling capacity is insufficient, the suction and exhaust pressures are low, and the intermittent "squeaking" airflow sound much larger than usual can be heard at the expansion valve. There is no frost or a small amount of floating frost on the evaporator. If the expansion valve hole is enlarged, the suction pressure still does...
  • The relationship between the four components of the refrigeration system and the cooling capacity Jun 15, 2022
    Because the refrigerating capacity of each cold storage refrigeration equipment will change under different working conditions, some increase, some decrease, so a certain margin is reserved in advance in the design to prevent certain operating conditions. During operation, the cooling capacity of the whole device cannot be properly exerted due to the excessive reduction of the cooling capacity of ...
  • How to Adjust Evaporation Temperature Jun 15, 2022
    The change of the evaporation temperature of the refrigeration equipment in the cold storage is related to the heat load of the warehouse, the heat transfer area of the evaporator, and the volume of the compressor. When one of these three conditions changes, the evaporating temperature and pressure of the refrigeration system must change. Heat transfer area changes Effect on Evaporation Temperatur...
  • Basic knowledge training materials of refrigeration and air conditioning Jan 10, 2023
    Basic terminology of refrigeration 1. Refrigeration: The process of removing heat from an object or fluid and discharging it into the ambient medium to produce a temperature lower than the ambient temperature. 2. Refrigerant: the working substance that continuously completes the cycle in the refrigeration device. Common refrigerants: R22, R134A, R410A, R32, R290, R404A, R717, water. 3. Refrigerant...
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