Analysis on reason of higher output water temperature of HP heater in 600MW unit and countermeasures

Huadian Technology ›› 2013, Vol. 35 ›› Issue (4): 5-7.

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Analysis on reason of higher output water temperature of HP heater in 600MW unit and countermeasures

PENG Bowei

(Anhui Huadian Suzhou Power Generation Company Limited, Suzhou 234000, China)

Received:1900-01-01 Revised:1900-01-01 Published:2013-04-25

Abstract

Abstract: During running period of a 600MW supercritical unit, the temperature of output water of the HP heater was much higher than the designed value. The problem was analyzed from the operation system and the measuring circuit, and it was found that the reason of the higher temperature was that the temperature sensing element is not matched with the compensating wire in the measuring circuit, and the measured temperature value was incorrect. The temperature sensing element had been replaced, and the measured temperature became correct.

Key words: 600MW supercritical unit, high-pressure heater (HP heater), output water temperature, higher, measuring circuit

PENG Bowei. Analysis on reason of higher output water temperature of HP heater in 600MW unit and countermeasures[J]. Huadian Technology, 2013, 35(4): 5-7.

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Analysis on reason of higher output water temperature of HP heater in 600MW unit and countermeasures

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