Frame type shell-and-tube heat exchanger

Abstract

A frame type shell-and-tube heat exchanger comprises a shell (1), tube bundles (2), tube sheets (3), baffle plates (4) and water chambers (5). The water chambers are mounted on the outer sides of the tube sheets in a welding mode, and the tube bundles are fixedly mounted on the inner sides of the tube sheets and the baffle plates. The peripheries of the tube sheets and the peripheries of the baffle plates are mounted on a frame (6) in a welding mode. The shell covers the tube bundles, the baffle plates and the frame, and the two ends of the shell are integrally mounted with the tube sheets in a welding mode. The tube sheets can be mounted at the two ends of the frame in a welding mode, the baffle plates are mounted in the middle of the frame according to needs, and the tube sheets, the baffle plates and the frame are made to be a whole. The frame type shell-and-tube heat exchanger has the advantages of being lower in weight, reasonable in structure, simple in production process, more reliable in quality, and easier to maintain.

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger, in particular to a frame-type shell-and-tube heat exchanger. Background technique [0002] Shell and tube (also known as shell and tube) heat exchanger is a commonly used form of heat exchanger. Such as figure 1 As shown, the existing shell-and-tube heat exchanger is generally composed of a shell 1, a tube bundle 2, a tube sheet 3, a baffle plate 4, and a water chamber 5. The connection mode of the existing shell and tube heat exchanger is generally that the two ends of the shell 1 are welded to fix the tube plate 3 of the tube bundle 2; On the shell 1; the water chamber 5 is installed on the tube plate 3 to guide the fluid into the tube bundle 2. The shell 1 is mostly circular (large low-pressure shell-and-tube heat exchangers have elliptical and rectangular shapes), and the tube bundle 2 is generally a parallel tube bundle or a spiral tube. is the heat transfer surface. In the shell-and-t...

AI Technical Summary

Problems solved by technology

[0004] another from figure 1 It can be seen that the shell 1 wraps the baffle 4 and the tube bundle 2, so in the process of manufacturing, it is necessary to open a process hole on the shell 1, and after the baffle 4 is installed and welded, the process hole is closed, so that Leading to complex production process and more welds

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