Heat dissipation device for styrene fixed tube plate type heat exchanger

Abstract

The invention relates to the related technical field of plate heat exchangers, in particular to a heat dissipation device for a styrene fixed tube plate heat exchanger, which comprises a heat exchanger outer shell, a lower mounting plate, an upper mounting plate, a heat exchange tube, a lower cover body and an upper cover body, a first-stage positioning plate and a second-stage positioning plate are installed on the inner side wall of the heat exchanger outer shell, positioning holes are formed in the first-stage positioning plate and the second-stage positioning plate, and a gas inlet is formed in the upper cover body. By arranging the fixed tube plate type heat exchanger formed by combining the heat exchanger outer shell, the lower mounting plate, the upper mounting plate, the heat exchange tubes, the lower cover body and the upper cover body, the upper mounting plate, the heat exchange tubes, the lower cover body, the upper cover body and the heat exchanger outer shell are mounted through detachable mounting structures; therefore, workers can conveniently and regularly maintain the interior of the heat exchanger outer shell, and the overall heat exchange effect of the plate heat exchanger is effectively guaranteed.

Description

technical field [0001] The invention relates to the related technical field of plate heat exchangers, in particular to a heat dissipation device for a styrene fixed tube-sheet heat exchanger. Background technique [0002] A fixed tube-sheet heat exchanger refers to a shell-and-tube heat exchanger in which the tube sheets at both ends of the tube bundle are fixedly connected to the shell by welding. After the tube plate is welded with the shell, it can also be used as a flange, and it is connected with the flange of the tube box with bolts. The advantage is that the structure is simple, and the required inner diameter of the shell is the smallest under the condition of ensuring equal heat transfer surfaces. The disadvantage is that when the temperature difference between the shell side and the tube side medium is large, a large thermal stress will be generated, which will cause the joint between the tube and the tube sheet to break and cause leakage or tube instability. At t...

AI Technical Summary

Problems solved by technology

The disadvantage is that when the temperature difference between the shell side and the tube side medium is large, a large thermal stress will be generated, which will cause the joint between the tube and the tube sheet to break and cause leakage or tube instability. At the same time, maintenance and shell side cleaning are also inconvenient. It is widely used in general occasions, but it is also limited by the temperature difference, and the effective heat transfer area of ​​the heat exchange tubes of the traditional fixed tube-sheet heat exchanger is limited, which limits the effective heat transfer speed of the fixed tube-sheet heat exchanger. Therefore, this paper The invention proposes a cooling device for a styrene fixed tube-sheet heat exchanger to solve the above problems

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