DESIGN AND DERFORMANCE ANALYSIS OF GAS HEAT EXCHANGER CONCERNING DESULPHURIZATION SYSTEM OF COALFIRED BOILER

WANG Jian; FU Zhong-quan; PU Liang-yi; CHEN Xin; TAN Zhi-mingChongqing Jiulong Electric Power Co Ltd

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DESIGN AND DERFORMANCE ANALYSIS OF GAS HEAT EXCHANGER CONCERNING DESULPHURIZATION SYSTEM OF COALFIRED BOILER

Thermal Power Generation Vol. 38, Issue 8, Pages: 10-13(2009)

更新时间：2025-09-28

- DESIGN AND DERFORMANCE ANALYSIS OF GAS HEAT EXCHANGER CONCERNING DESULPHURIZATION SYSTEM OF COALFIRED BOILER
- 作者机构：
  
  重庆九龙电力股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published：2009
- 稿件说明：
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WANG Jian, FU Zhong-quan, PU Liang-yi, et al. DESIGN AND DERFORMANCE ANALYSIS OF GAS HEAT EXCHANGER CONCERNING DESULPHURIZATION SYSTEM OF COALFIRED BOILER[J]. Thermal Power Generation, 2009, 38(8): 10-13.
DOI：

WANG Jian, FU Zhong-quan, PU Liang-yi, et al. DESIGN AND DERFORMANCE ANALYSIS OF GAS HEAT EXCHANGER CONCERNING DESULPHURIZATION SYSTEM OF COALFIRED BOILER[J]. Thermal Power Generation, 2009, 38(8): 10-13. DOI：

摘要

对重庆九龙电力公司九龙发电分公司(九龙发电公司)1台200 MW机组燃煤锅炉的脱硫装置进行改造

设计了新型的管式烟气-烟气换热器(GGH)

换热器管侧首次采用了三维内肋强化换热技术

大幅提高了换热效率。改造后的管式GGH对系统增压无特殊要求

净烟气排烟温度基本满足污染物扩散要求

可有效提高脱硫效率

无需蒸汽加热可降低发电煤耗6.7 g/(kW.h)

经济效益显著;节约除盐水费用130元/h;进入脱硫吸收塔烟气温度降低

蒸发水量减少

可节水20 t/h。

Abstract

The desulphurization system of coal-fired boiler for 200 MW unit in Jiulong Power Generation Co Ltd

a branch company of Chongqing Jiulong Electric Power Co Ltd

has been retrofitted

a new type gas-gas heat exchanger(GGHE) adopting firstly the three-dimentional inner ribs at the tube side for strengthening the heat exchange being designed

enhancing the heat exchange efficiency by a big margin.After retrofitting

the GGHE hasn't spechial requirement for boosting in the system

the exhaust gas temperature of purified gas basically satisfying the requirement of pollutant emission

effectively enchancing the desulphurizing efficiency

increasing the economic effectiveness of power plant.The retrofit has remarkable economic effect

there is no need to heat with steam

reducing coal consumption for power generation by 6.7 g/kW·h

saving expense of desalted water by 130 yuan/h

the temperature of flue gas entering absorption tower for desulphurization being lowered

decreasing water quantity for evaporation

saving water by 20 t/h.

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