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一、概述换热器管子与管板的连接方式主要有焊接和胀接两种,而胀接又有机械胀接、爆炸胀接、液压胀接和橡胶胀接等几种方法;目前采用较多的仍是比较简便的机械胀接法。随着化学工业的发展,对换热管与管板连接的性能及可靠性要求越来越高,光靠胀接或光焊接的接头已不能适应高温、
First, an overview of the heat exchanger tubes and tube plate connection mainly welding and expansion of two, while the expansion has mechanical expansion joint, explosion expansion joint, hydraulic expansion and expansion of rubber and other methods; currently used more More is still relatively easy mechanical expansion joint method. With the development of the chemical industry, the performance and reliability requirements of the heat exchange tube and the tube plate connection are getting higher and higher, and the joints that rely on expansion or light welding can no longer meet the requirements of high temperature,