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Dual-tubesheet heat interchanger

A technology of heat exchangers and double tube sheets, applied in the direction of heat exchanger types, heat exchanger shells, indirect heat exchangers, etc., can solve the problems of easy corrosion and leakage of welding, to ensure welding quality, eliminate safety hazards, improve reliability effect

Active Publication Date: 2011-01-26
倪加明
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a double-tube-sheet heat exchanger to solve the technical problem that the welding part is easy to corrode and leak in the above-mentioned background technology, and further solve the technology of improving the heat exchange efficiency of the heat exchanger, satisfying the corrosion resistance of the cylinder body and controlling the cost question

Method used

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Examples

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Embodiment Construction

[0025] In order to better understand the shape, structure and characteristics of the present invention, the following examples are listed and described in detail with reference to the accompanying drawings.

[0026] The double-tube-sheet heat exchanger of the present invention includes a cylinder body 9, and the two sides of the cylinder body 9 are respectively assembled with the left side tube box 1 and the right side tube box 11 through the tube box flanges. The material of cylinder 9 is a composite material formed by combining stainless steel plate 92 and low-alloy steel plate 91 by explosive compounding, and then the composite material is rolled into a cylinder by a plate rolling machine and welded to form cylinder 9 . specific structure, such as figure 1 As shown, the outer layer of the cylinder body 9 is a low-alloy steel plate 91 with a thickness of 40 mm to 60 mm, so as to meet the sufficient strength requirement of the cylinder body 9 . The inner layer of the cylinde...

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Abstract

The invention relates to a dual-tubesheet heat interchanger comprising a cylindrical barrel, a left channel box, a right channel box, outer tubesheets, inner tubesheets and a plurality of heat exchange tubes, wherein the barrel is provided with a shell medium inlet and a shell medium outlet; the left channel box and the right channel box are respectively arranged at two ends of the barrel throughchannel box flanges, and at least one of the channel boxes is provided with a tube medium outlet and a tube medium inlet; the outer tubesheets are arranged at both ends of the barrel and connected with the channel box flanges; the inner tubesheets are arranged at the inner sides of the outer tubesheets and are connected with the barrel, and a liquid storage cavity is formed between each outer tubesheet and each inner tubesheet; the heat exchange tubes pass through the outer tubesheets and the inner tubesheets, both ends of the heat exchange tubes are respectively fixed on the outer tubesheets, the heat exchange tubes are connected with the inner tubesheets in an expanded way and the outer tubesheets in both expanded and welding ways.

Description

technical field [0001] The invention relates to a double-tube-plate heat exchanger used in industries such as new energy, energy conservation and environmental protection, petroleum, chemical industry, pharmacy and electric power for heat exchange. Background technique [0002] With the continuous advancement of science and technology, industries such as new energy, energy conservation and environmental protection, petroleum, chemical industry, pharmaceuticals and electric power have higher and higher requirements for tube-sheet heat exchangers for heat exchange. The working pressure of the heat exchanger reaches 3.2MPa. When the temperature reaches 350-400°C, the diameter of the heat exchanger cylinder must be over 2.6m, its length must be over 6m, and the thickness of the cylinder must be over 50mm. [0003] At the same time, the heat exchange medium used in the heat exchange process is often corrosive. For example, in the production process of polysilicon, the medium in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/16F28F9/02F28F9/24F28F21/08F28F19/01
CPCF28F9/0229
Inventor 倪加明
Owner 倪加明
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