Therefore, it is necessary to strengthen the monitoring of the bearing temperature and motor coil temperature of each equipment to ensure safe and economic operation of the unit under high temperature conditions.
Based on this expectation, we especially strengthened the monitoring of the temperature and other parameters of various types of equipment during the operation of the unit. On April 12th, the duty officer noticed that the #2 machine A medium pressure pump pump free section bearing temperature was high (74 ° C), while strengthening the on-site inspection of the equipment. In the afternoon, it was found that the #2 machine A medium pressure pump pump free section bearing temperature increased abnormally, up to 97.1 ° C (jump pump value 100 ° C). Then contact the treatment, and at the same time enable the B standby medium pressure pump, and stop the A running medium pressure pump. On-site measured medium pressure to the pump bearing shell temperature is 90 ° C, while the bearing oil level is about 70%.
It is precisely because of the expectation that the pump will be avoided due to the high bearing temperature caused by the medium pressure pump, and the harm caused by the abnormal operation of the medium pressure pump to the safe operation of the unit will be avoided.
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