Optimization of deep frequency conversion transformation for condensate pump in 1000MW secondary reheat unit

Abstract

Abstract:

In order to fully exploit the energysaving potential in a condensate pump during frequency conversion operation of a 1000MW secondary reheating unit,it is pointed out that the main factor restricting the deep frequency conversion of condensate pump is the low sealing water pressure of team turbinedriven feedwater pump.By adding sealing water boost pumps the turbinedriven feedwater pum，the operation logic can be optimized.After the deep frequency conversion transformation for condensate pump,the opening degree of the deaerator water regulating valve further increases,throttling loss decreases,the current and rotation speed of condensate pump drops.Energy is saved effectively.

Key words:

font-size: 10.5pt, mso-spacerun: 'yes', mso-font-kerning: 1.0000pt">secondary reheat unit;condensate pump;deep frequency conversion;sealing water booster pump

XU Jiang，LIANG Haishan，XUE Xiaoyu.

Optimization of deep frequency conversion transformation for condensate pump in 1000MW secondary reheat unit [J]. Huadian Technology, 2019, 41(8): 70-73.

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Optimization of deep frequency conversion transformation for condensate pump in 1000MW secondary reheat unit

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