Corrugated straight pipe heat exchanger and heat exchange method

Abstract

The invention relates to a corrugated straight tube heat exchanger and a heat exchange method thereof. The corrugated straight tube heat exchanger is composed of an upper tube box, a shell-side cylinder and a lower tube box. The upper tube box is provided with a tube-side medium inlet. The lower tube box is provided with a tube-side medium outlet, and the two sides of the shell-side cylinder are respectively provided with a shell-side medium inlet and a shell-side medium outlet; A plurality of corrugated straight tubes are vertically arranged in the cylinder body as heat exchange tubes. The main body of the corrugated straight tubes is a structure of corrugated tube sections plus straight tube sections, that is, a cycle of waveform includes crest-straight-line segment-peak-trough; both ends of the corrugated straight tube A smooth straight tube is used for fixed connection with the upper and lower tube sheets, and the shell-side cylinder is provided with a plurality of square-hole jet plates along the height direction. The invention effectively improves the heat exchange efficiency, suppresses the formation of dirt, and solves the wear problem between the heat exchange tube and the baffle plate. In addition, it also has the advantages of convenient disassembly of the heat exchange tube, small equipment volume, and low cost.

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger, in particular to a corrugated straight-tube heat exchanger used for heat exchange in a medium in chemical production and a heat exchange method thereof. Background technique [0002] Traditional heat exchangers usually use straight heat exchange tubes and bow-shaped baffles, which generally have problems such as low heat exchange efficiency, fast deposition of dirt in the heat exchanger, difficult to clean dirt, expansion joints are required when the temperature difference is large, and high equipment costs. With the in-depth research on heat exchange tubes and the development of mechanical processing, in recent years, various forms of heat exchange tubes such as horizontal grooved tubes, zoom tubes, spiral grooved tubes and corrugated tubes have appeared. Although the structure of these heat exchange tubes Different, but the mechanism of enhancing heat transfer is similar, that is, by changing ...

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Problems solved by technology

[0003] The invention provides a corrugated straight tube heat exchanger and a heat exchange method thereof. The heat exchange tube in the form of a corrugated straight tube is used in combination with a square-hole jet plate, and an enlarged cylindrical structure is adopted to effectively improve the heat exchange efficiency of the heat exchanger. High thermal efficiency, inhibiting the generation of dirt, solving the wear problem between the heat exchange tube and the baffle plate, in addition, it has the advantages of easy disassembly of the heat exchange tube, small equipment size, and low cost

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