中国电力 ›› 2013, Vol. 46 ›› Issue (9): 12-15.DOI: 10.11930/j.issn.1004-9649.2013.9.12.3

• 循环流化床技术专栏 • 上一篇    下一篇

外置床受热面防磨技术及应用

胡昌华   

  1. 四川白马循环流化床示范电站有限责任公司,四川 内江 641005
  • 收稿日期:2013-05-06 出版日期:2013-09-23 发布日期:2015-12-10
  • 作者简介:胡昌华(1965—),男,重庆垫江人,高级工程师(教授级),工学学士,从事循环流化床锅炉的基建、调试、生产等管理工作。

Wear Proof Technology for EHE Heating Surfaces and Its Application

HU Chang-hua   

  1. Sichuan Baima CFB Demonstration Power Plant Co. Ltd., Neijiang 641005, China
  • Received:2013-05-06 Online:2013-09-23 Published:2015-12-10

摘要: 针对300 MW等级CFB锅炉机组外置床受热面存在的磨损、爆管、超温等现象,分析了外置床受热面的磨损机理及原因,提出了管卡结构优化、检修工艺优化、监测外置床受热面管束出口汽温、热强度高的管子绝热保温等防磨、防超温措施。介绍了600 MW CFB锅炉机组外置床设计结构,并将300 MW等级CFB锅炉机组外置床的成熟防磨技术应用于600 MW等级CFB锅炉机组,提高了机组的可靠性,取得了较好的效果。

关键词: 循环流化床锅炉, 外置床, 磨损机理, 防磨技术

Abstract: Aiming at the wearing, tube rupture and overheating phenomena existing in the external heat exchanger(EHE) of 300-MW CFBB units, mechanisms and reasons of the wearing are analyzed. A series of measures against abrasion and overheating, including the optimization of pipe clip structures and maintenance technologies; the monitoring of outlet steam temperature of EHE tubes, as well as the insulation capacity of high-calorific intensity tubes are proposed. The designed structure of EHE for 600-MW CFBBs is also presented in the paper and the wear proof measures for the 300-MW CFBB units are applied to the 600-MW units, which has improved the reliability of the unit with high efficiency.

Key words: CFBB, EHE, wearing mechanism, wear proof technology

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