Maintenance method of cooling and thermal shock test chamber refrigeration system
In order to ensure the safe and reliable operation of the cooling and thermal shock test chamber refrigeration system and prolong the service life of the compressor, please pay attention to daily maintenance.
1. Before the compressor is turned on:
(1) Check the oil level gauge, the oil level of the crankcase should be within the specified range, and the oil quality should be clean;
(2) Whether the valve to be opened in the exhaust shut-off valve and its system is in the correct position;
(3) Check if the power supply voltage and ambient temperature are within the specified range.
2. When the compressor is running:
(1) The suction and exhaust pressure of the compressor should not exceed the range of use. Listen to the operating sound of the compressor. Except for the clear and falling sounds of the inlet and exhaust valves, the other parts should not have a knocking sound.
(2) It is found that the leakage should be repaired in time.
(3) When the compressor is stopped for a long time, the refrigerant should be recycled into the liquid receiver and the exhaust cut-off valve should be closed.
To maintain the quality of the thermal shock test chamber, the quality shall be carried out item by item according to the specified items and requirements, and shall not be missed or not guaranteed. The problems found in maintenance items, maintenance quality and maintenance should be recorded and reported to the department.
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