Feasibility of closed circulating water waste heat utilization in 600MW supercritical unit

LUO Haihua; WANG Baoyu; ZHAO Yuzhu; CUI Chuantao China Huadian Electric Research Institute

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Feasibility of closed circulating water waste heat utilization in 600MW supercritical unit

更新时间：2025-09-28

- Feasibility of closed circulating water waste heat utilization in 600MW supercritical unit
- Thermal Power Generation Vol. 42, Issue 3, Pages: 5-7(2013)
- 作者机构：
  
  华电电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK115;TK267
- Published：2013
- 稿件说明：
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LUO Haihua, WANG Baoyu, ZHAO Yuzhu, et al. Feasibility of closed circulating water waste heat utilization in 600MW supercritical unit[J]. Thermal power generation, 2013, 42(3): 5-7.
DOI：

LUO Haihua, WANG Baoyu, ZHAO Yuzhu, et al. Feasibility of closed circulating water waste heat utilization in 600MW supercritical unit[J]. Thermal power generation, 2013, 42(3): 5-7. DOI：

摘要

针对某超临界600MW机组闭式循环水夏、秋季节温度高给机组带来安全隐患等问题

提出了采用压缩式热泵替代板式换热器对闭式循环水进行冷却

并排挤汽轮机第8级部分抽汽的方案。分析结果表明

系统改造后全年可增加收入417.11万元

6.23年可收回投资

经济性较好

投资回报期较短。

Abstract

High temperature closed circulating water in summer and autumn brought security risk of a supercritical 600 MW unit.Thus

countermeasure that replacing the plate heat exchanger by compression heat pump to cool the closed circulating water

and pushing out partial extraction in the 8th stage of the turbine was put forward.The economy of this scheme was analyzed and it showed that

the annual income of the improved system can be increased by 4.171 1×106 yuan

and the investment can be recovered within 6.23 years.

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