燃煤烟气高温SCR脱硝反应器的结构工程设计讨论
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摘要
SCR脱硝反应器结构布置形式及受力情况复杂,且在高温状态下长期工作,依据现有的规范标准,难以用一个精确的计算模型对SCR脱硝反应器进行结构设计。因此,根据实际工程的实例,对多种行业设计标准进行对比综合,从反应器计算方法的选择、结构模型简化、材料选择及高温性能参数确定等方面提出应注意的问题,提供一种高温SCR脱硝反应器结构工程设计的思路。
The structure configuration and stress distribution in SCR denitrification reactor are complicated, and reactor will be operated at high temperature for a long period of time, thus it is difficult to carry out the design of SCR denitrification reactor by using an accurate model in calculation as per current specifications and standards. In this paper, several design standards for a variety of industries, based on examples of practical engineering, were comprehensively compared. Some problems need to be concerned in selection of methods for reactor calculation, such as structure model simplification, materials selection and high temperature performance parameters determination etc., were pointed out. Finally, the idea for structural design of SCR denitrification reactor working in high temperature was presented.
The structure configuration and stress distribution in SCR denitrification reactor are complicated, and reactor will be operated at high temperature for a long period of time, thus it is difficult to carry out the design of SCR denitrification reactor by using an accurate model in calculation as per current specifications and standards. In this paper, several design standards for a variety of industries, based on examples of practical engineering, were comprehensively compared. Some problems need to be concerned in selection of methods for reactor calculation, such as structure model simplification, materials selection and high temperature performance parameters determination etc., were pointed out. Finally, the idea for structural design of SCR denitrification reactor working in high temperature was presented.
引文
[1]陈进生.火电厂烟气脱硝技术——选择性催化还原法[M].北京:中国电力出版社,2008.
[2]孙克勤,钟秦.火电厂烟气脱硝技术及工程应用[M].北京:化学工业出版社,2007.
[3]张强.燃煤电站SCR烟气脱硝工程技术及工程应用[M].北京:化学工业出版社,2007.
[4]杨冬,徐鸿.SCR烟气脱硝技术及其在燃煤电厂中的应用[J].电力环境保护,2007,23(1):49-51.
[5]沈海涛,程伟华,郑水英.SCR脱硝反应器结构有限元分析及其改进措施[J].化工机械,2012,39(6):758~760.
[6]JB/T 4732—2005,钢制压力容器分析设计标准[S].
[7]叶文邦,张建荣,曹文辉.压力容器设计指导手册[M].昆明:云南科技出版社,2006.
[8]GB 50017—2003,钢结构设计规范[S].
[9]DL/T 5121—2000,火力发电厂烟风煤粉管道设计技术规程[S].
[10]李国强,陈凯,蒋首超,等.高温下Q345钢的材料性能试验研究[J].建筑结构,2001,31(1):53-55.
[2]孙克勤,钟秦.火电厂烟气脱硝技术及工程应用[M].北京:化学工业出版社,2007.
[3]张强.燃煤电站SCR烟气脱硝工程技术及工程应用[M].北京:化学工业出版社,2007.
[4]杨冬,徐鸿.SCR烟气脱硝技术及其在燃煤电厂中的应用[J].电力环境保护,2007,23(1):49-51.
[5]沈海涛,程伟华,郑水英.SCR脱硝反应器结构有限元分析及其改进措施[J].化工机械,2012,39(6):758~760.
[6]JB/T 4732—2005,钢制压力容器分析设计标准[S].
[7]叶文邦,张建荣,曹文辉.压力容器设计指导手册[M].昆明:云南科技出版社,2006.
[8]GB 50017—2003,钢结构设计规范[S].
[9]DL/T 5121—2000,火力发电厂烟风煤粉管道设计技术规程[S].
[10]李国强,陈凯,蒋首超,等.高温下Q345钢的材料性能试验研究[J].建筑结构,2001,31(1):53-55.