Discharge temperature is one of the core indicators of the operating status of cold storage compressors, and its stability is directly related to lubricating oil performance and the service life of internal components. Excessively high discharge temperature, which may seem like a mere deviation of temperature parameters from standards, will actually accelerate lubricating oil deterioration, intensify wear of internal components of the compressor, disrupt the balance of system operation, and埋下 hidden risks of equipment failure and safety hazards.

          High temperature has a direct impact on the deterioration of lubricating oil. Excessively high discharge temperature will damage the chemical stability of the lubricating oil, leading to a decrease in its viscosity and a decline in oxidation resistance, quickly losing its lubricating, cooling and cleaning functions, failing to form an effective oil film, and leaving internal metal components without key protection.

          Lubricating oil deterioration will further intensify component wear. Without the protection of the oil film, direct friction will occur between internal components of the compressor such as pistons, cylinder liners and bearings, and the wear rate will be greatly accelerated. At the same time, the generated metal debris will contaminate the deteriorated lubricating oil, forming a vicious cycle, shortening the service life of components, and even causing serious faults such as cylinder sticking and shaft seizure.

          Standard operation and maintenance require strict control of discharge temperature: regularly check the working condition of the cooling system to ensure the normal operation of the condenser and cooling fan, and timely remove dirt from heat exchange components; monitor discharge temperature data, and promptly investigate related issues such as throttling components and refrigerant charge when abnormalities are found; regularly replace suitable lubricating oil and supplement the oil level to the standard range.

          Controlling the discharge temperature within the standard range is the key to protecting lubricating oil and compressor components. Doing a good job in temperature monitoring and daily operation and maintenance can slow down oil deterioration and component wear, maintain stable operation of the unit, reduce fault risks and maintenance costs, and ensure the continuity of cold storage refrigeration.