Control of hydrogen purity of 1000MW ultra supercritical unit generator

Abstract

Abstract: When the hydrogen is used as the cooling medium of the generator, the control of the hydrogen purity is very important. There are many factors influencing on the generator hydrogen purity, and the sealing oil has largest relevancy with hydrogen purity control. Some indexes, such as the flow and temperature of the sealing oil, the vacuum degree and the dewpoint temperature of hydrogen, were analyzed; the relation between sealing oil and hydrogen purity was expounded. Combining with practical operation of units No.6 and No.7 of Guodian Zhejiang Beilun No.1 Power Generation Company Limited phase III project, some practical and feasible control measures were proposed.

Key words: 1000MW unit, ultra supercritical, hydrogen purity, sealing oil, generator

CHEN Xiaochun. Control of hydrogen purity of 1000MW ultra supercritical unit generator[J]. Huadian Technology, 2012, 34(3): 27-30.

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Control of hydrogen purity of 1000MW ultra supercritical unit generator

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