下面换热器网的小编跟大家介绍列管式换热器的结构。
列管式换热器是目前化工及酒精生产上应用最广的一种换热器。它主要由壳体、管板、换热管、封头、折流挡板等组成。列管式换热器的结构比较简单、紧凑、造价便宜，但管外不能机械清洗。列管式换热器是目前化工及酒精生产上应用最广的一种换热器。它主要由壳体、管板、换热管、封头、折流挡板等组成。所需材质 ，可分别采用普通碳钢、紫铜、或不锈钢制作。换热器管束连接在管板上，管板分别焊在外壳两端，并在其上连接有顶盖，顶盖和壳体装有流体进出口接管。
通常在管外装置一系列垂直于管束的挡板。同时管子和管板与外壳的连接都是刚性的，而管内管外是两种不同温度的流体。因此，当管壁与壳壁温差较大时，由于两者的热膨胀不同，产生了很大的温差应力，以至管子扭弯或使管子从管板上松脱，甚至毁坏换热器。
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The tubular heat exchanger is a heat exchanger currently produces chemicals and alcohol on the most widely used. It is mainly composed of shell, tube plate, heat pipe, head, baffle and so on. Tubular heat exchanger has the advantages of simple structure, compact structure, low cost, but not mechanical cleaning tube. The tubular heat exchanger is a heat exchanger currently produces chemicals and alcohol on the most widely used. It is mainly composed of shell, tube plate, heat pipe, head, baffle and so on. The required material, can be used in ordinary carbon steel, copper, or stainless steel. The tube bundle is connected to the tube plate, and the tube plate is welded at both ends of the shell, and is connected with the top cover, the cover and the housing are provided with a fluid inlet and outlet pipe.
A series of vertical tubes are usually outside the tube. At the same time, the connection between the tube and the tube plate and the shell is rigid, while the outer tube is the fluid of two different temperatures. Therefore, when the pipe wall and the shell wall temperature difference is large, due to both the different thermal expansion, resulting in a great temperature stress, even bending of the pipe or the tube from the pipe plate loose, or even the destruction of heat exchanger.
The following heat exchanger network dedicated to heat exchanger, spiral plate heat exchanger manufacturing, product quality is good, the price is reasonable, by the majority of customers in the industry, if you have any need to consult us!