CAUSE ANALYSIS AND TECHNICAL RETROFIT DUE TO HIGHER TEMPERATURE OF FLUE GAS DISCHARGED FROM BOILER OF SUPERCRITICAL 350 MW UNIT

QIN Jianzhu Huaneng Dongfang Power Plant

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CAUSE ANALYSIS AND TECHNICAL RETROFIT DUE TO HIGHER TEMPERATURE OF FLUE GAS DISCHARGED FROM BOILER OF SUPERCRITICAL 350 MW UNIT

更新时间：2025-09-28

- CAUSE ANALYSIS AND TECHNICAL RETROFIT DUE TO HIGHER TEMPERATURE OF FLUE GAS DISCHARGED FROM BOILER OF SUPERCRITICAL 350 MW UNIT
- Thermal Power Generation Vol. 40, Issue 6, Pages: 49-51(2011)
- 作者机构：
  
  华能东方电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK228
- Published：2011
- 稿件说明：
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QIN Jianzhu Huaneng Dongfang Power Plant. CAUSE ANALYSIS AND TECHNICAL RETROFIT DUE TO HIGHER TEMPERATURE OF FLUE GAS DISCHARGED FROM BOILER OF SUPERCRITICAL 350 MW UNIT[J]. Thermal power generation, 2011, 40(6): 49-51.
DOI：

QIN Jianzhu Huaneng Dongfang Power Plant. CAUSE ANALYSIS AND TECHNICAL RETROFIT DUE TO HIGHER TEMPERATURE OF FLUE GAS DISCHARGED FROM BOILER OF SUPERCRITICAL 350 MW UNIT[J]. Thermal power generation, 2011, 40(6): 49-51. DOI：

摘要

首批国产超临界350 MW机组锅炉投产以来

均出现了排烟温度明显高于设计值的问题

其主要原因是锅炉空气预热器吸热量不足。华能东方电厂通过对省煤器、空气预热器改造

降低了排烟温度

每台机组年可节约标准煤约3 850 t

减少二氧化硫生成量85t以上

减少二氧化碳排放量9 000 t以上。

Abstract

Since putting the boiler of supercritical 350 MW unit in Huaneng Dongfang Power Plant into operation

the problem of discharged flue gas temperature being substantially higher than the designed value has appeared.The main cause is insufficient absorbed heat in the boiler's air preheater.Through retrofit of the economizer and the air preheater

the temperature of discharge flue gas has been decreased

the saved standard coal of each unit can reach about 3850 t in one year

reducing formation of sulfer dioxide above 85 t

decreasing emission of CO2 above 9000 t.

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