Back pressure turbine driven induced draft fans:operation and exhaust recycle

LEI Zhaotuan; FU Longlong; DANG Xiaojian; ZHU Chaoyang; HAN Lei; ZHANG Shaoyong

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Back pressure turbine driven induced draft fans:operation and exhaust recycle

更新时间：2025-09-28

- Back pressure turbine driven induced draft fans:operation and exhaust recycle
- Thermal Power Generation Vol. 43, Issue 6, Pages: 153-156(2014)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 淮浙煤电凤台发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK223.26
- Published：2014
- 稿件说明：
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LEI Zhaotuan, FU Longlong, DANG Xiaojian, et al. Back pressure turbine driven induced draft fans:operation and exhaust recycle[J]. Thermal power generation, 2014, 43(6): 153-156.
DOI：

LEI Zhaotuan, FU Longlong, DANG Xiaojian, et al. Back pressure turbine driven induced draft fans:operation and exhaust recycle[J]. Thermal power generation, 2014, 43(6): 153-156. DOI：

摘要

淮浙煤电凤台电厂超超临界660MW机组引风机采用背压式汽轮机驱动。该机组利用引风机汽轮机排汽

通过引风机低压加热器加热凝结水

回收引风机汽轮机排汽的工质和热量

在机组满负荷运行时凝结水温度升高了17.4℃;通过低温省煤器

利用高温烟气对凝结水进行再次加热

机组满负荷运行时凝结水温度升高了18.3℃

脱硫系统入口烟气温度下降32.4℃

机组效率提高了0.24%。

Abstract

The induced draft fans in ultra supercritical 660 MW unit of Huaizhe Coal Electricity Fengtai Power Plant are driven by back pressure steam turbine.Through heating the condensation water by low pressure heaters of induced draft fan

this unit recycles the fluid and heat of exhaust steam.When the unit run at full load

the condensate water temperature increased by 17.4℃.In low temperature economizer

the high temperature flue gas was employed to reheat the condensate water.When the unit run at full load

the condensate water temperature increased by 18.3℃

the flue gas temperature at desulfurization system inlet decreased by 32.4℃

and the unit efficiency increased by 0.24%.

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