Self-supporting type tube bundle heat exchanger

Abstract

The invention relates to a self-supporting type tube bundle heat exchanger. The self-supporting type tube bundle heat exchanger includes a tubular heat exchanger. Heat exchange tube bundles in the tubular heat exchanger are mutually supported through fixing sleeves installed outside single heat exchange tubes in a sleeving mode, and the heat exchange tube bundles are supported and fixed through supporting plates in the circumferential direction. The fixing sleeves press grooves to be closely connected with the heat exchange tubes. Compared with the prior art, the self-supporting type tube bundle heat exchanger has the advantages that media in a shell side form complex, continuous and uniform flow passages between the heat exchange tubes, the turbulence degree of the media is increased, a flowing boundary layer is thinned, heat transfer resistance is reduced, and therefore heat exchange efficiency is improved; the equipment is small in size, and the manufacturing cost is low; no baffle plate is arranged in the shell side, so that flowing dead zones in the shell side are eliminated, and the pressure drop of the media in the shell side is lowered; as no blind zone exists in the shell side, scaling is not prone to occur; the flow velocity is high in the shell side, so accumulation of impurities in the media is lowered; because large-area through holes are formed in a hole plate, compared with a traditional baffle plate, the heat exchange tubes are quite convenient to assemble and disassemble.

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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