浸渍石墨制40m^(2)块孔式石墨换热器设计  

The design of 40m^(2) block-hole graphite heat exchanger manufactured by impregnated graphite

作　　者：张金博 Zhang Jinbo(The Fourth Research and Design Engineering Corporation of CNNC,Shijiazhuang 050021,China)

机构地区：[1]中核第四研究设计工程有限公司,河北石家庄050021

出　　处：《煤炭与化工》2022年第11期136-139,147,共5页Coal and Chemical Industry

摘　　要：为解决块孔式石墨换热器设计过程中的难题,本文以某工程40 m^(2)盐酸预热器为例,阐述了块孔式石墨换热器的材料特性、内部构件、工作原理及结构特点,详细介绍了换热块、封头块、围封壳体、压紧装置的设计要点,给出了合理的换热块材质、开孔布置、密封结构、压紧结构,并提出了压紧装置的受力分析模型,分析表明弹簧预紧力须考虑最大承压能力和最小密封压力的要求,为块孔式石墨换热器的设计优化提供了参考案例,对该类设备的后续研究具有指导意义。To solve design problems of the block-hole graphite heat exchanger,this paper demonstrates the features of a 40m^(2)hydrochloric acid preheater used in project,such as material properties,internal components,operating principles and structure points.The heat exchanger block,the head block,the steel container,and the holding-down device are introduced in detail.The adaptable material is recommended.This paper also gives out the structures of hole,seal and clamp.And the stress analysis model of holding-down device is proposed.It is found that the maximum bearing capacity and the minimum sealing capacity must meet allowable requires during calculating the spring preload.This solution provides a practical case for the design optimization of such equipment.It is theoretical guiding significance to the further research of block-hole graphite heat exchanger.

关 键 词：浸渍石墨 石墨换热器 块孔式石墨 热交换器 压紧装置 盐酸 

分 类 号：TQ051.5[化学工程]