有哪些信誉好的足球投注网站- 1、本文档共11页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
- 5、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
- 6、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
- 7、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 8、VIP文档为合作方或网友上传，每下载1次， 网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
设计〔论文〕题目：
列管式换热器的设计
目录
1前言························································3
2设计任务及操作条件··············································3
3列管式换热器的工艺设计·········································3
3.1换热器设计方案确实定··········································3
3.2物性数据确实定················································4
3.3平均温差的计算················································4
3.4传热总系数Ｋ确实定············································4
3.5传热面积A确实定··············································6
3.6主要工艺尺寸确实定············································6
3.6.1管子的选用·················································6
3.6.2管子总数n和管程数Np确实定··································6
3.6.3校核平均温度差?tm及壳程数Ns·································7
3.6.4传热管排列和分程方法········································7
3.6.5壳体内径··················································7
3.6.6折流板····················································7
3.7核算换热器传热能力及流体阻力··································7
热量核算···················································7
3.7.2换热器压降校核·············································9
4列管式换热器机械设计············································10
4.1壳体壁厚的计算················································10
4.2换热器封头选择················································10
4.3其他部件······················································11
5课程设计评价·····················································11
5.1可靠性评价····················································11
5.2个人感想······················································11
6参考文献··························································11
附表换热器主要结构尺寸和计算结果·······························12
1前言
换热器〔英语翻译：heatexchanger〕，是将热流体的局部热量传递给冷流体的设备，又称热交换器。换热器是化工、石油、动力、食品及其它许多工业部门的通用设备，在生产中占有重要地位。在化工生产中换热器可作为加热器、冷却器、冷凝器、蒸发器和再沸器等，应用更加广泛。换热器种类很多，但根据冷、热流体热量交换的原理和方式根本上可分三大类即：间壁式、混合式和蓄热式。
列管式换热器工业上使用最广泛的一种换热设备。其优点是单位体积的传热面积、处理能力和操作弹性大，适应能力强，尤其在高温、高压和大型装置中采用更为普遍。列管式换热器主要有以下几个类型：固定管板式换热器、浮头式换热器、U形管式
文档评论（0）