AMMONIA REFRIGERANT ROTARY COMPRESSOR USING CANNED MOTOR AND METHOD FOR OPERATING SAME

摘要

PURPOSE: To enable continuous operation without deteriorating safety as measures are taken against trouble with a can without emergency stop of compressor operation, even if the can by which rotor storage space permitting leakage of ammonia is hermetically isolated from stator storage space is deteriorated in sealing performance. ;CONSTITUTION: When a request to stop operation of a rotary compressor 1 is given as the rotary compressor is continuously operated even after leakage of ammonia in the storage space of a stator 22 has been detected, rotation of a canned motor 2 is not immediately stopped but after the motor has no-load running substantially for a given period of time.;COPYRIGHT: (C)1995,JPO