天然气门站辐射加热器的结构优化  

Structural Optimization of Radiant Heater Used in NG Gate Station

作　　者：李泓钰 刘蓉[1] 史永征[1] 王庆余[2] 

机构地区：[1]北京建筑大学燃气研究中心,北京100044 [2]北京市燃气集团有限责任公司,北京100035

出　　处：《煤气与热力》2015年第7期38-42,共5页Gas & Heat

基　　金：住房和城乡建设部2012年科技计划项目<城市燃气系统未来发展方向及其关键技术问题研究>的企业配套项目<智能燃气网建设研究>(2012R2-38);北京市燃气集团有限责任公司高压管网分公司委托项目<城镇燃气智能网工程技术规范>(014148S01000477)

摘　　要：分析天然气门站辐射加热器的传热过程,建立数学模型。以某天然气门站为对象,通过计算,探讨换热管排列形式、管间距和换热管管径对换热管面积、辐射板面积和辐射效率的影响,分析了盘管式、排管式辐射加热器的特性。排管式排列方式优于盘管式,且根数越多越有优势;对于排管式排列方式,随着管径的变化,辐射板面积的变化趋势与换热管面积的变化趋势相反,在确定换热管管径时,应综合考虑辐射板和换热管材料的造价。The heat transfer process of radiant heater used in NG gate station is analyzed. The mathe- matical model of radiant heater is built. Taking a natu- ral gas gate station as object, the influence of the ar- rangement form of heat exchange tube, tube spacing and diameter on heat exchange tube area, radiant pan- el area and radiant efficiency is discussed though cal- culation. The characteristics of coiled tube and banked tube radiant heaters are analyzed. The banked arrange- ment form is superior to the coiled arrangement form, and the larger the number of tubes, the greater the su- periority. For the banked arrangement form, the change trend of radiant panel area is opposite to that of the heat exchange tube area with the change of tube diameter, and the material costs of the radiant panel and the heat exchange tube should be taken into account when the heat exchange tube diameter is determined.

关 键 词：天然气门站 辐射加热器 传热模型 换热管结构 辐射效率 辐射板 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程]