换热管与管板接头液压贴胀试验

Hydraulic Expanding Test of Heat Exchange Tube and Tube Plate Joint

在换热器生产中,换热管与管板的连接是最主要的工序之一。换热管-管板接头最常见的连接形式有焊接、胀接和焊胀并用等方法。对换热管-管板焊胀并用中胀接施工进行了试验,介绍了换热管与管板接头液压贴胀试验的基本内容及管子胀管率的计算方法,通过试验确定了Φ19×2mm管子与管板贴胀时应使用的胀管率和胀接压力,为换热器生产中换热管与管板的连接施工积累了经验,可为同类换热器的制造提供参考。

The connection between heat exchange tube and tube sheet is one of the most important processes in the production of heat exchangers. The common connections of heat exchange tube and tube plate joints are welding,expanding,Welding and expanding together,and so on. This paper mainly tests the expansion,introduces the basic content of the test and the calculation method of tube expanding rate,The expansion tube rate and the expansion pressure of Φ19 × 2mm tube and tube plate are determined by experiments,Accumulating experience for the construction of the heat exchanger connected in the production of heat tube and tube sheet,providing a reference for the similar manufacturing heat exchangers.