Three major failures and troubleshooting methods for high and low temperature experimental box refrigeration compressors (1)
The "heart" of a car is the engine. If there is no engine, the car is equivalent to scrap iron. The "heart" of the high and low temperature experimental box refrigeration system is the compressor. The compressor sucks the low-temperature low-pressure refrigerant gas from the intake pipe, and after the motor is driven to drive the piston to compress it, the high-temperature high-pressure refrigerant gas is discharged to the exhaust pipe to supply power to the refrigeration cycle. Below, Xiaobian compiled the three major faults and troubleshooting methods common to high and low temperature experimental box compressors to help you better maintain the compressor.
1. The high and low temperature experimental box compressor suddenly stops during operation:
The reasons are:
(1) The suction pressure is too low, lower than the lower limit of the pressure relay;
(2) The exhaust pressure is too high, causing the high-voltage relay to be powered off;
(3) The oil pressure is too low, and the oil pressure relay is relayed;
(4) The motor is overloaded, and the thermal relay is relayed;
Method of exclusion:
(1) Check the cause, it is a pipe that is blocked by the pipeline, and if the system is insufficient in refrigerant, it will be added;
(2) Check the cooling capacity or cooling air volume of the condenser;
(3) Check the pipeline and oil pump of the oil delivery system;
(4) Check if the power supply voltage is low or the cold load is too large;
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