Ultra-low emission reform and its influence on the plant's electricity supply cost

CUI Liming; MENG Lixia; YUAN Hong

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Ultra-low emission reform and its influence on the plant's electricity supply cost

Thermal Power Generation Vol. 46, Issue 6, Pages: 119-124(2017)

更新时间：2025-09-28

- Ultra-low emission reform and its influence on the plant's electricity supply cost
- 作者机构：
  
  1. 神华集团有限责任公司
  2. 中国节能减排有限公司
  3. 神华国华电力研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC： F426.61;X773
- Published：2017
- 稿件说明：
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CUI Liming, MENG Lixia, YUAN Hong. Ultra-low emission reform and its influence on the plant's electricity supply cost[J]. Thermal Power Generation, 2017, 46(6): 119-124.
DOI：

CUI Liming, MENG Lixia, YUAN Hong. Ultra-low emission reform and its influence on the plant's electricity supply cost[J]. Thermal Power Generation, 2017, 46(6): 119-124. DOI：

摘要

响应国家政策要求

某660 MW燃煤发电机组通过在空气预热器和静电除尘器之间加装低低温省煤器

改造脱硫吸收塔喷淋层和除雾器

增加1台刚性极板湿式电除尘器

同时进行引风机、增压风机二合一改造

并采用高效低氮燃烧器以及分级省煤器技术完成了超低排放改造。通过建立"度电年均成本评估模型"

并以实际运行成本数据为基础

对除尘、脱硫、脱硝等过程进行逐项分析计算

获得改造对供电成本的影响情况。研究表明:采用上述创新技术和设备进行机组改造

显著降低了主要烟气污染物排放浓度;改造后供电成本增加0.008 47元/(k W·h)。该结果可为全国大范围实施的燃煤发电机组超低排放改造提供参考。

Abstract

In response to the national policy requirements

a 660 MW coal-fired generating unit completed ultralow emission reform. A low-temperature economizer was installed between the air preheater and the ESP

so the desulfurization absorber's spray layer and the demister was optimized. A WESP with rigid plate was installed behind the FGD absorber

at the same time

the induced draft fans and booster fans were combined

and the low nitrogen burner with high efficiency and the grading economizer technology were also employed. A cost evaluation model was built

based on the actual operating cost data

the influence of the reform on the power supply cost was obtained. By performance test and model analysis

the results show that the above-mentioned innovative technologies and equipments can significantly reduce the emission concentration of the flue gas pollutants. The cost of electricity is increased by 0.008 47 yuan/(k W·h) after the reform.

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Related Institution

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