Causes and preventive measures of refrigeration compressor and equipment explosion
The main reasons for the explosion of refrigeration compressor and equipment are the following three:
1 air pressure test of the system (equipment) with oxygen, or the presence of ammonia;
2 in the remaining refrigerant under the condition of hot repair;
3 overpressure operation.
Based on the above reasons, the main measures to prevent the explosion of refrigeration compressor and equipment:
1 in any case, strictly prohibit the oxygen pressure test, ammonia system (equipment) can not use air pressure test, all test pressure, test leakage are used dry nitrogen;
2 hot repair, should first confirm the total emissions of ammonia refrigerant, equipment (containers) application of internal water flushing;
3 is strictly prohibited unauthorized modification of safety protection devices, to the safety protection device regularly check to ensure that no overpressure operation.
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