Unit 19 Types of Heat Exchangers 1
1 Unit 19 Types of Heat Exchangers
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每 text Heat exchangers are equipment primarily for transferring heat between hot and cold streams.They have separate passages for the two streams and operate continuously.The most versatile and widely used exchangers are the shell-and tube types,but various plate and other types are valuable and economically or superior in some applications. 3
3 text 1-1 Heat exchangers are equipment primarily for transferring heat between hot and cold streams. They have separate passages for the two streams and operate continuously. The most versatile and widely used exchangers are the shell-andtube types, but various plate and other types are valuable and economically or superior in some applications
1-2 These other types will be discussed briefly,but most of the space following will be devoted to the shell-and-tube types, primarily because of their importance,but also because the are most completely documented in the literature.Thus the can be designed with a degree of confidence to fit into a process.The other types are proprietary and for the most pa must be process designed by their manufacturers. 4
4 1-2 These other types will be discussed briefly, but most of the space following will be devoted to the shell-and-tube types, primarily because of their importance, but also because they are most completely documented in the literature. Thus they can be designed with a degree of confidence to fit into a process. The other types are proprietary and for the most part must be process designed by their manufacturers
换热器是主要用于冷热流束间传递热量的设备.对于两种流体而言， 具有单独的通道，并且连续操作功能最多，且广泛使用的换热器是管 壳式换热器，但各种板式及其他类型的换热器也有其价值，在某些使 用中具有经济性和优势这些其他类型的换热器将概括讨论，而接下 来的大部分篇幅将涉及管壳式的，主要因为他们即重要，又因为在文 献中他们大部分具有最完整的记录.于是我们就有信心设计出与过 程相匹配的管壳式换热器.其他形式的换热器是带有专利性的，且大 部分必须由他们制造商进行工艺设计. 5
5 1 换热器是主要用于冷热流束间传递热量的设备.对于两种流体而言, 具有单独的通道,并且连续操作.功能最多,且广泛使用的换热器是管 壳式换热器,但各种板式及其他类型的换热器也有其价值, 在某些使 用中具有经济性和优势.这些其他类型的换热器将概括讨论,而接下 来的大部分篇幅将涉及管壳式的, 主要因为他们即重要,又因为在文 献中他们大部分具有最完整的记录.于是我们就有信心设计出与过 程相匹配的管壳式换热器.其他形式的换热器是带有专利性的,且大 部分必须由他们制造商进行工艺设计