Method for jacking main coolant pump motor rotor of nuclear power station

The invention relates to the technical field of nuclear power debugging and maintenance, and particularly discloses a method for jacking a main coolant pump motor rotor of a nuclear power station. Themethod comprises the following steps of: the step 1: confirming the initial state of a valve; the step 2: adjusting the valve state so that the main coolant pump motor rotor is subjected to an upwardjacking force; the step 3: jacking up the main coolant pump motor rotor; the step 4: restoring the valve state. The method has the advantages of high reliability, convenience in operation, the shortened operation period, the reduced collective radiation dose and reference significance for the jacking or lifting mode of a main coolant pump motor rotor of a co-traveling power plant. 本发明涉及核电调试检修技术领域，具体公开了一种用于核电站主冷却剂泵电机转子顶起的方法，包括以下步骤：步骤1：确认阀门初始状态；步骤2：调整阀门状态使得主冷却剂泵电机转子受到向上的顶力；步骤3：主冷却剂泵电机转子顶起；步骤4：恢复阀门状态。本发明方法可靠性高，操作便捷，缩短了作业工期，降低了集体辐射剂量，对同行电厂主泵电机转子顶起或提升方式具有借鉴意义。