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Chen X.-D.,Shenhua Zhejiang Guohua Zheneng Power Generation Co. | Mu X.-B.,Shenhua Zhejiang Guohua Zheneng Power Generation Co. | Yao B.,Shenhua Zhejiang Guohua Zheneng Power Generation Co.
Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power | Year: 2015

In the light of the condition that the total flow rate of the steam-driven pump of the unit No.2 in Shenhua Zhejiang Guohua Zheneng Power Plant changes abnormally, through Optipro performance diagnosis system, a diagnosis and analysis were conducted of the performance of the high pressure heater No.3 in the above-mentioned power plant. The leakage problem of the high pressure heater No.2 of the unit No.2 was judged and found out and a technical modification to equipment items with a special purpose was performed. As a result, the heater was timely isolated with the leakage being blocked, a total of eight locations being leaked being sealed and blocked and a total of forty two joints being repaired and welded. After the treatment, the unit No.2 has been restored to its normal and good operation. To find out timely the hidden troubles in high pressure heaters can effectively guarantee a unit to be in a safe operation, thus having a major significance. ©, 2015, Harbin Research Institute. All right reserved. Source

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