Energy consumption evaluation and energy conservation optimization for pneumatic ash disposal system of coal-fired units

HE Ganxiang; JING Xinjing; ZHANG Hailong; LI Yang

doi:10.19666/j.rlfd.201803115

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Energy consumption evaluation and energy conservation optimization for pneumatic ash disposal system of coal-fired units

Thermal Power Generation Vol. 47, Issue 11, Pages: 18-23(2018)

更新时间：2025-09-28

- Energy consumption evaluation and energy conservation optimization for pneumatic ash disposal system of coal-fired units
- 作者机构：
  
  1. 神华福能发电有限责任公司
  2. 西安西热节能技术有限公司
  3. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201803115
  CLC： TK011
- Published Online：24 October 2018，
  
  Published：2018
- 稿件说明：
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HE Ganxiang, JING Xinjing, ZHANG Hailong, et al. Energy consumption evaluation and energy conservation optimization for pneumatic ash disposal system of coal-fired units[J]. Thermal Power Generation, 2018, 47(11): 18-23.
DOI：

HE Ganxiang, JING Xinjing, ZHANG Hailong, et al. Energy consumption evaluation and energy conservation optimization for pneumatic ash disposal system of coal-fired units[J]. Thermal Power Generation, 2018, 47(11): 18-23. DOI： 10.19666/j.rlfd.201803115.

摘要

根据8台300 MW等级燃煤机组正压气力除灰系统的统计数据

采用单位电耗指标对正压气力除灰系统的能耗现状进行了分析;基于国内气力除灰系统设计和运行现状

提出一种评估气力除灰系统是否有节能潜力的计算方法

并以某电厂1号、2号机组气力除灰系统为例进行了计算

得到的结果与该系统实际节能优化后的结果相符

可作为同类型燃煤机组正压气力除灰系统节能潜力评估的估算方法;提出一种气力除灰系统输灰单元循环时间实时优化方法

可为燃煤机组调峰运行时气力除灰系统的优化运行提供参考。

Abstract

On the basis of the statistical data of 8 coal-fired units

the unit power consumption was used to analyze the energy consumption of the positive pressure pneumatic ash disposal system. According to the present situation of the design and operation of the pneumatic ash removal system in China

a calculation method for evaluating whether there is energy saving potential in the pneumatic ash removal system was presented. Moreover

taking the pneumatic ash removal system of unit 1 and unit 2 of a power plant as the example

the results obtained are in agreement with the actual energy-saving effect of the optimized system

proving that this method can be used to evaluate the energy saving potential of the positive pressure pneumatic ash removal system of the same type of coalfired units. In addition

a real-time optimization method for cycle time of ash conveying units in the pneumatic ash removal system was also proposed

which can provide a reference for optimization of the pneumatic ash removal system during peak regulation of the coal-fired units.

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