Continuous helical deflecting plate pipe and shell type heat exchanger

A technology of shell-and-tube heat exchangers and spiral baffles, which is applied to the types of heat exchangers, heat exchanger shells, indirect heat exchangers, etc., and can solve the problems of reducing heat exchange efficiency, increasing flow resistance of heat exchanger shells, Problems that affect the heat transfer performance of the heat exchanger

Inactive Publication Date: 2006-01-11
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many problems in the traditional bow-shaped baffles: ①The bow-shaped baffles cause the fluid to impact the shell wall vertically, resulting in a large pressure drop along the way; , reduces the heat transfer efficiency, and is easy to scale; ③There is leakage between the baffle and the shell wall and between the heat exchange tube and the baffle, so that there is a large bypass flow on the shell side
[0005] However, the existing helical baffles are almost all disc

Method used

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  • Continuous helical deflecting plate pipe and shell type heat exchanger
  • Continuous helical deflecting plate pipe and shell type heat exchanger
  • Continuous helical deflecting plate pipe and shell type heat exchanger

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Example Embodiment

[0031] The present invention is proposed on the premise of solving a feasible processing technology.

[0032] Processing method one:

[0033] A circular piece of metal material (aluminum plate or steel plate) is cut radially, and then inserted into the forging die, and the surface of the forging die is a periodic spiral surface. Then put the upper forging die into the lower forging die from above, sandwich the ring sheet in the middle, and tighten the bolts around the die to fix the upper and lower dies together, then put the die on the forging bed for forging, and forge the metal sheet into spiral slices.

[0034] Put one or several pressed spiral slices into the lower punching die, then insert the upper punching die into the lower punching die, and sandwich the spiral slices in the middle. The drill bit can be inserted from the small hole of the punching die, and punch uniformly distributed small holes on the spiral plate, and the small holes on the spiral plate are used t...

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Abstract

The present invention relates to a continuous spiral deflector shell-and-tube heat exchanger. Said heat exchanger includes the following components: shell body, central tube, baffle plate, head plates, heat-exchanging tube bundle and continuous spiral deflector. Said invention also provides their connection mode and the concrete structure of said heat exchanger. Said invention is more compact in structure and can greatly raise heat-exchanging efficiency.

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger used in oil refining, chemical industry, environmental protection, energy, electric power and other industries, in particular to a shell-and-tube heat exchanger with continuous spiral baffles. Background technique [0002] Heat exchanger is an important unit equipment in oil refining, chemical industry, environmental protection, energy, electric power and other industries. Usually in the construction of chemical plants, heat exchangers account for about 10-20% of the total investment; especially in refineries, heat exchangers Heaters account for about 35-40% of all process equipment investment. Shell and tube heat exchangers account for 37% of the total heat exchanger market in the world. In a shell and tube heat exchanger, one fluid flows inside the tubes and the other fluid flows on the shell side and exchanges heat through the tubes. At the same time, baffles are arranged on the shell side, ...

Claims

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Application Information

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IPC IPC(8): F28F9/24F28D1/053F28D1/02
Inventor 王秋旺陈秋炀彭波涛曾敏罗来勤吴一宁
Owner XI AN JIAOTONG UNIV
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