Huadian Technology ›› 2012, Vol. 34 ›› Issue (S1): 26-29.

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Analysis on operation condition characteristics of chemical water system of heat recover boiler in gassteam combined cycle unit

YAO Yong1, HUANG Xingde2, ZHU Qing2, FEI Jianying2   

  1. 1.Shanghai Fengxian Gas Turbine Power Generation Company Limited, Shanghai 201403, China; 2.East China Power Test & Research Institute Company Limited, Shanghai 200437, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-11-10 Published:2012-11-10

Abstract: Some difficult problems exist in operation condition control of chemical water system of head recover boiler in gassteam combined cycle unit, which include that the cation conductivity of the steam exceeds the standard, the steam in the steam drum contains water, it is more difficult to control the quality of water and steam during startup stage and so on. Starting from the target of ensuring the healthy and safety of the unit equipments, by the thermochemical test and the evaluation in depth, the safe and effective standard of operation condition control of the chemical water system and the flexible monitoring system were established.
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Key words: heat recover boiler, chemical water system, cation conductivity, quality of water steam, control standard, monitoring system, thermo-chemical test