煤粉锅炉新型风水联合干排渣系统构建及热平衡分析

冯斌; 卢平

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DOI:10.3969/j.issn.2096-8299.2020.05.007

上海电力大学学报:2020,36(5):451-455

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煤粉锅炉新型风水联合干排渣系统构建及热平衡分析

冯斌¹, 卢平²

(1.华东电力设计院有限公司发电分公司;2.南京师范大学能源与机械工程学院)

Conception and Heat Balance Analysis of Water-air Cooling Dry Slag Discharge System for Pulverized Coal-fired Boiler

FENG Bin¹, LU Ping²

(1.Department of Power Generation, East China Electric Power Design Institute Co., Ltd., Shanghai 200063, China;2.School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China)

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投稿时间：2020-07-06

中文摘要: 基于风水联合冷却的概念，提出了一种新型煤粉锅炉风水联合干排渣系统，由风冷式钢带冷渣机和间冷式滚筒冷渣器两级冷渣组成，依次利用空气和水冷却热渣，回收锅炉排渣的余热，并建立了风水联合干排渣和湿式刮板捞渣机的热平衡模型。1 000 MW燃煤机组的热平衡分析与计算结果表明，风水联合干排渣系统具有显著的节能效果；与传统湿式刮板捞渣机相比，可节约煤耗约0.35 g/kWh；与风冷式钢带机或链板机相比，能耗降低更多。

中文关键词: 煤粉锅炉干排渣系统风水联合冷却热平衡锅炉效率

Abstract:Based on the conception of air-water combined cooling,a novel air-water cooling dry slag discharge system for pulverized coal-fired boiler was proposed,which consists of air-cooled steel strip machine and indirect water-cooled roller cooling machine,and the waste heat from boiler slag is successively recovered by using air and water cooling.The heat balance models of water-air cooling dry slag discharge and wet slag scraper conveyor were established based on the above conception.The heat balance analysis and calculation results of 1 000 MW coal-fred boiler indicated that water-air cooling dry slag discharge system has a significant energy-saving effect.It can reduce the coal consumption about 0.35 g/kWh compared with traditional wet slag scraper conveyor,and can reduce more coal consumption compared with the air-cooled dry slag discharge system.

keywords: pulverized coal-fired boiler dry slag discharge system air-water cooling heat balance boiler efficiency

文章编号：20205007 中图分类号：TK223.2 文献标志码：

基金项目:

作者	单位	E-mail
冯斌	华东电力设计院有限公司发电分公司
卢平	南京师范大学能源与机械工程学院	luping@njnu.edu.cn

Author Name	Affiliation	E-mail
FENG Bin	Department of Power Generation, East China Electric Power Design Institute Co., Ltd., Shanghai 200063, China
LU Ping	School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China	luping@njnu.edu.cn

引用文本：
冯斌,卢平.煤粉锅炉新型风水联合干排渣系统构建及热平衡分析[J].上海电力大学学报,2020,36(5):451-455.
FENG Bin,LU Ping.Conception and Heat Balance Analysis of Water-air Cooling Dry Slag Discharge System for Pulverized Coal-fired Boiler[J].Journal of Shanghai University of Electric Power,2020,36(5):451-455.