ENERGY-SAVING TRANSFORMATION OF ROTARY AIR PREHEATER FOR BOILER ON A 600 MW UNIT

ZHANG Buting; WANG Chunyu; LI Ling; JU Haixia; LI Min Henan Electric Power Research Institute

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ENERGY-SAVING TRANSFORMATION OF ROTARY AIR PREHEATER FOR BOILER ON A 600 MW UNIT

更新时间：2025-09-28

- ENERGY-SAVING TRANSFORMATION OF ROTARY AIR PREHEATER FOR BOILER ON A 600 MW UNIT
- Thermal Power Generation Vol. 41, Issue 10, Pages: 64-65(2012)
- 作者机构：
  
  河南电力试验研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2012
- 稿件说明：
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ZHANG Buting, WANG Chunyu, LI Ling, et al. ENERGY-SAVING TRANSFORMATION OF ROTARY AIR PREHEATER FOR BOILER ON A 600 MW UNIT[J]. Thermal power generation, 2012, 41(10): 64-65.
DOI：

ZHANG Buting, WANG Chunyu, LI Ling, et al. ENERGY-SAVING TRANSFORMATION OF ROTARY AIR PREHEATER FOR BOILER ON A 600 MW UNIT[J]. Thermal power generation, 2012, 41(10): 64-65. DOI：

摘要

某电厂超超临界600MW机组锅炉存在热风温度偏低

排烟温度偏高的现象

分析认为主要是回转式空气预热器(空预器)换热效果较差所致。在空预器热端增加了高300mm的碳钢蓄热元件后

空预器换热效果明显提高

一次、二次风温升及烟气侧温降均达到设计值

烟气侧换热效率为70.78%

高于设计值。

Abstract

Poor heat transfer effect of the rotary air preheater was considered as the main reason for the phenomenon occurs in a 600 MW ultra supercritical unit boiler:low hot air temperature and high exhaust gas temperature.To solve this problem

300 mm height carbon steel heat storage component was added to the heat section of preheater.Results show that

heat transfer is significantly enhanced.Temperature rise of the primary and secondary air

and its drop of the delayed side both meets the design value.Heat exchange efficiency of the flue gas side reaches 70.78%

higher than the designed value.

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