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ANSYS-based double-tube double-tube-plate heat exchanger tube plate design method

A technology of double tube sheet heat exchanger and design method, applied in the direction of heat exchanger shell, indirect heat exchanger, heat exchanger type, etc., can solve the problems of insufficient strength of heat exchanger tube sheet, potential safety hazards, material waste, etc.

Inactive Publication Date: 2018-04-13
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The designed heat exchanger tube sheet often has problems such as insufficient strength and potential safety hazards, or the waste of material selection is too thick.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The main structure of the double-tube double-tubesheet heat exchanger includes two outer tubesheets and two inner tubesheets. Two ends of the inner heat exchange tube are respectively connected to two outer tube sheets, and two ends of the outer heat exchange tube are respectively connected to two inner tube sheets. There is a gap between the inner heat exchange tube and the outer heat exchange tube, and there is no constraint between the two.

[0013] When designing and calculating the tube sheet of a double-tube double-tube-sheet heat exchanger, the heat exchanger should be disassembled first to obtain an outer heat exchanger composed of an inner heat exchange tube and an outer tube sheet, and an outer heat exchanger composed of An inner heat exchanger composed of outer heat exchange tubes and inner tube sheets. Then, according to the method stipulated in the relevant national standards, the two heat exchangers obtained by dismantling are regarded as ordinary fixed t...

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Abstract

The invention provides an ANSYS-based double-tube double-tube-plate heat exchanger tube plate design method and belongs to the technical field of heat exchanger tube plate design. The method comprisesthe main steps that first, a double-tube double-tube-plate heat exchanger is split into two fixed-tube-plate heat exchangers, namely an outer heat exchanger composed of an outer tube plate and an inner heat exchange tube and an inner heat exchanger composed of an inner tube plate and an outer heat exchange tube; then the two heat exchangers obtained through splitting are used as ordinary fixed-tube-plate heat exchangers to perform relevant design calculation according to relevant national standards; and ANSYS analysis software is utilized to perform finite element analysis on the heat exchangers, and stress analysis and checking are performed on the heat exchanger tube plates. Through the ANSYS-based double-tube double-tube-plate heat exchanger tube plate design method, a brand new technical scheme is provided for design calculation of this type of heat exchangers, and key technical problems bothering technical personnel in the relevant field for a long term are solved.

Description

technical field [0001] The invention relates to a design calculation method of a heat exchanger tube sheet, in particular to a design calculation method of a double tube double tube sheet heat exchanger tube sheet. Background technique [0002] Shell-and-tube heat exchangers are widely used in the heat exchange process between hot and cold media in the process industry. Leakage is one of the common faults of heat exchange equipment. For ordinary heat exchangers, once leakage occurs, it will cause The two media are in contact with each other. In the general chemical process, a small amount of leakage of the heat exchanger is usually allowed, but in many special occasions such as polysilicon, organic silicon and fluorine chemical industry, it is required that the two media involved in heat exchange must not be mixed and contacted, otherwise it will endanger the equipment. safety, and even lead to catastrophic accidents. Therefore, those skilled in the related art have develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50F28F9/02
CPCF28F9/02G06F30/17G06F2119/08F28D7/106F28F9/04F28F2200/00G06F30/23G06F2119/14G06F2119/18Y02P90/02
Inventor 刘文明巢建伟许进文郑瑜刘雪东
Owner CHANGZHOU UNIV
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