A support plate fixing structure and a shell-and-tube heat exchanger having the same

Abstract

The invention provides a support plate fixing structure and a shell-and-tube heat exchanger. The support plate fixing structure includes a support plate and a shell, the support plate is arranged in the shell, the support plate is fixedly provided with a slide bar, and the inner wall of the shell is fixedly provided with a fixing bar; the slide bar elastically cooperates with the fixing bar so that the support plate fixed with the shell. The present invention also provides a shell-and-tube heat exchanger, which includes the above-mentioned support plate fixing structure, and also includes tie rods, tube sheets, and heat exchange tubes; the tube sheets are two or more pieces, so that the heat exchange tubes are kept parallel; The tie rods are vertically connected to the tube sheets to keep the tube sheets parallel. The invention achieves the technical effect of improving the connection stability and installation efficiency of the support plate and the shell-and-tube heat exchanger with it.

Description

technical field [0001] The invention relates to a support plate structure, in particular to a support plate fixing structure and a shell-and-tube heat exchanger with the support plate structure. Background technique [0002] The support plate assembly is an important part of the shell-and-tube heat exchanger (also known as the flooded heat exchanger) used in the central air conditioner of the centrifuge and the screw machine. The support plate supports the heat exchange tube during the operation of the unit and reduces heat transfer The vibration of the tube can improve the service life of the heat exchange tube. Usually, the fixing method of the support plate assembly is that the support plate is welded and connected with the shell inside the shell. However, the structure of the welded connection of the support plate, the shell is a semi-closed shell, it is difficult to use automatic assembly equipment, generally the welder climbs into the middle part of the shell to perfo...

AI Technical Summary

Problems solved by technology

However, the structure of the welded connection of the support plate, the shell is a semi-closed shell, it is difficult to use automatic assembly equipment, generally the welder climbs into the middle part of the shell to perform welding and slag removal after welding, which is not only difficult to operate, but also difficult to work. The environment is very bad

If a long-arm welding torch is used, there are defects such as the inability to remove welding slag, and welding slag can easily block the central air-conditioning system and affect the operation of the unit

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