The compressor in the refrigeration system of the programmable constant temperature and humidity test chamber has some common faults and its treatment Refrigeration compressor is the main equipment in the high and low temperature test box refrigeration device, usually called the main unit in the refrigeration unit, especially for the high and low temperature test box. Common faults and treatment methods for high and low temperature test box refrigeration compressor 1, circuit failure The wiring of the electric control cabinet or the instrument box circuit is incorrect, the motor is burnt out, and the solenoid valve wiring is incorrectly caused to open. 2, running machinery failure · There is abnormal noise during operation · There is foreign matter in the compressor, the compressor and filter are clear, and the system should be cleaned if necessary ·The bearing is damaged, replace the bearing, check the wear of the rotor, and replace if necessary · Keyway or key wear ·The compressor body temperature is too high · The intake temperature is too high, and the shutoff valve should be adjusted appropriately. ·The wear of the parts causes the friction parts to heat up, parking check • The pressure ratio is too large to reduce the exhaust pressure. · Insufficient oil cooler capacity, increase cooling water volume and lower oil temperature. · Insufficient fuel injection and increased fuel injection. · The compressor is burnt due to impurities and other reasons, and the parking is checked. 3, system failure · The refrigeration unit is a highly automated, chained device that can cause sudden stops due to improper operation. · The abnormal exhaust temperature may be too high due to excessive refrigerant, the suction pressure is too high, the compressor load is heavy, the process may suddenly stop, the cooling capacity is insufficient, the filter is clogged, and the cleaning is performed. After the compressor rotor wears, the clearance is too large, and the repair is replaced. The amount of cooling water is insufficient or the water temperature is too high, and the amount of water is adjusted. The expansion valve is too large or too small, according to working conditions Adjust the valve opening degree. The shut-off valve is dirty or blocked and cleaned. There is more air in the system to discharge air. ·Insufficient cooling • The amount of refrigerant filled in the tank is insufficient and added to the specified value. • A large amount of lubricating oil in the evaporator to recover the refrigeration oil. • Solenoid valve is damaged, repaired or replaced. ·Expansion 1 Division of temperature sensor inside the tank can leak, repair or replace. ·The outlet valve of the condenser is not opened or opened too small, and the liquid outlet valve is properly opened. · The refrigerant leaks too much, finds the leak, and adds refrigerant after the inspection. 3C Parts,Professional 3C Service 3C Products, Customized 3C Parts Ningbo Jiongke Technology Co., Ltd , https://www.processingmfg.com