A tube bundle self-supporting heat exchanger

Abstract

The invention relates to a tube bundle casing orifice plate supported heat exchanger, which includes a tube heat exchanger, and the heat exchange tube bundles in the tube heat exchanger are mutually supported by a fixed sleeve sleeved outside a single heat exchange tube. , the heat exchange tube bundle is supported and fixed circumferentially by the support plate. The pressing groove of the fixed sleeve is closely connected with the heat exchange tube. Compared with the prior art, the beneficial effects of the present invention are: 1) the medium in the shell side forms complex continuous and uniform flow passages between the heat exchange tubes, which improves the degree of turbulence and thins the boundary layer of the flow, The heat transfer resistance is reduced, thereby improving the heat exchange efficiency; 2) The equipment is small in size and low in manufacturing cost; 3) There is no baffle in the shell side, which eliminates the flow dead zone in the shell side and reduces the pressure of the shell side medium. Pressure drop: 4) There is no blind area in the shell side, and it is not easy to scale; the flow rate in the shell side is high, which reduces the accumulation of impurities in the medium: 5) Large-area through holes are set on the orifice plate. Compared with traditional baffles, The installation and disassembly of the heat exchange tube is very convenient.

Description

technical field [0001] The invention relates to a tube heat exchanger, in particular to a tube bundle casing orifice plate supported heat exchanger used for medium heat exchange in the coking industry, which can effectively solve the problem of impurity accumulation and settlement, low heat exchange efficiency and shell side resistance. Big and other issues. Background technique [0002] Tubular (also known as shell-and-tube, shell-and-tube) heat exchanger is the most typical partitioned wall heat exchanger. It has a long history of industrial application and still occupies a dominant position in all heat exchangers. The tubular heat exchanger is mainly composed of a shell, a tube bundle, a tube sheet, and a head. The shell is mostly circular, and parallel tube bundles are installed inside, and both ends of the tube bundle are fixed on the tube sheet. [0003] There are two kinds of fluids that exchange heat in the tube heat exchanger, one flows in the tube, and its stroke ...

AI Technical Summary

Problems solved by technology

At present, the known self-supporting forms of tube bundles include perforated diaphragm type, twisted elliptical tube type, variable cross-section tube type, etc., but there are generally problems of difficult production and processing, difficult cleaning, and inconvenient disassembly and maintenance.

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