Self-support double spiral finned tube heat exchanger

A technology of double helical finned tubes and heat exchangers, applied in heat exchanger types, indirect heat exchangers, tubular elements, etc., can solve problems such as easy generation of flow dead zone, large shell-side flow resistance, and increased material consumption. , to achieve the effect of promoting helical channel and axial irregular movement, reducing flow resistance and reducing material consumption

Pending Publication Date: 2018-09-11
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of heat exchange tube bundle structure needs to set up support structure and baffle structure, which increases the material consumption, and the heat transfer efficiency is relatively low. not effectively

Method used

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  • Self-support double spiral finned tube heat exchanger
  • Self-support double spiral finned tube heat exchanger
  • Self-support double spiral finned tube heat exchanger

Examples

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Embodiment Construction

[0019] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0020] Such as Figure 1-3 As shown, a self-supporting double-helical finned tube heat exchanger according to the present invention includes a heat exchanger composed of an upper tube box 6, an upper tube sheet 5, a shell 4, a lower tube sheet 2 and a lower tube box 1 sequentially connected. The main body of the heater, the shell side inlet 8 is set on the upper side of the shell 4, the shell side outlet 3 is set on the other side of the lower part of the shell 4; the tube side inlet 9 is set on the top of the upper tube box 6, and the tube side is set on the bottom of the lower tube box 1 Outlet 10; the shell 4 is provided with a heat exchange tube bundle, and the two ends of the heat exchange tube bundle are fixed by the upper tube plate 5 and the lower tube plate 2, and communicate with the upper tube box 6 and the lower tube box 1 respectively...

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PUM

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Abstract

The invention relates to a self-support double spiral finned tube heat exchanger. The self-support double spiral finned tube heat exchanger comprises a heat exchanger main body composed of an upper tube box, an upper tube plate, a shell, a lower tube plate and a lower tube box. A heat exchange tube bundle is arranged in the shell and is a self-support double spiral finned tube bundle composed of aplurality of vertically arranged double spiral finned tubes. Each double spiral finned tube is composed of a smooth straight tube and two spiral fins wound on the periphery of the smooth straight tube. The adjacent double spiral finned tubes make multipoint contact, support each other and form a spoiler structure. Each double spiral finned tube forms a spiral channel in the longitudinal direction. The self-support double spiral finned tube bundle composed of the multiple double spiral finned tubes forms a netty spiral channel. The double spiral finned tubes are adopted for mutual supporting and combination to form the self-support heat exchange bundle, every two spiral fins are simultaneously used as shell pass spoiler elements, thus, the heat transfer area is greatly enlarged, a shell pass flow path is optimized, and the heat transfer effect is improved; and in addition, the shell pass flow resistance is lowered, flow dead zones and leakage flow paths are avoided, and material consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of enhanced heat exchange and heat transfer, in particular to a self-supporting double-helical finned tube heat exchanger. Background technique [0002] At present, most chemical plants are still using traditional shell-and-tube heat exchangers, in which the heat exchange tube bundles are all in the form of a combination of light tubes and baffle components. The baffle components include baffle plates, baffle rods, etc. This kind of heat exchange tube bundle structure needs to set up support structure and baffle structure, which increases the material consumption, and the heat transfer efficiency is relatively low. not effectively. Contents of the invention [0003] The invention provides a self-supporting double-helical finned tube heat exchanger, which uses double-helical finned tubes to support each other to form a self-supporting heat exchange tube bundle, and the double-helical fins also serve as she...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F1/36
CPCF28D7/16F28F1/36
Inventor 曲斌段有龙于涛
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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