Energy saving effect of generator applying phase change heat exchanger

LIU Chang; DENG Xuzhen; GUO Jun; CHEN Wenwen

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Energy saving effect of generator applying phase change heat exchanger

更新时间：2025-09-28

- Energy saving effect of generator applying phase change heat exchanger
- Thermal Power Generation Vol. 42, Issue 10, Pages: 13-15(2013)
- 作者机构：
  
  山东山大华特环保工程有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM92;TM31
- Published：2013
- 稿件说明：
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LIU Chang, DENG Xuzhen, GUO Jun, et al. Energy saving effect of generator applying phase change heat exchanger[J]. Thermal power generation, 2013, 42(10): 13-15.
DOI：

LIU Chang, DENG Xuzhen, GUO Jun, et al. Energy saving effect of generator applying phase change heat exchanger[J]. Thermal power generation, 2013, 42(10): 13-15. DOI：

摘要

相变换热器节能系统是通过吸收锅炉排烟余热

加热汽轮机低温凝结水

达到节能降耗的目的。以135MW机组为例计算得出:采用相变换热器后

机组标煤能耗降低了3.2g/(kW·h)

1台机组每年可节约标煤2 400t

减少CO2排放4 136t

而相变换热器排挤抽汽对汽轮机真空的影响很小

可忽略不计。

Abstract

By absorbing the boiler exhaust heat

the low temperature condensing water from steam turbine was heated in phase change heat exchanger

thus the energy is saved.Taking a 135MW unit as the example

the calculation results showed that

after the phase change heat exchanger was applied

the standard coa l consumption decreased by 3.2g/(kW·h)

each unit can save standard coal of 2 400 tand reduce CO2 emission of 4 136tper year.The influence of crowding extraction from the phase change heat exchanger on vacuum of the turbine and on the power can be ignored.Several countermeasures were put forward to prevent the low temperature corrosion

ash deposition and wear of the heating surface

like applying high temperature brazing Ni-based full infiltrated layer material spiral finned tube for the phase change heat exchanger.

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Related Author

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Related Institution

Tour-Solaire.Fr, 8 Impasse des Papillons, 90 Montpellier

School of Civil Engineering and Architecture, Wuhan University of Technology

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Shenhua Guohua

Shenhua Guohua (Suizhong) Electric Power Plant Co., Ltd.

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