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Adjustable pulsating flow enhanced heat transfer heat exchanger

A technology for enhancing heat transfer and pulsating flow, applied in heat transfer modification, heat exchange equipment, lighting and heating equipment, etc., can solve problems such as no proposed structural form, and achieve simple structure, enhanced heat transfer, and easy realization

Inactive Publication Date: 2013-08-21
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are not many studies on how to apply regular fluid pressure fluctuations to enhance the heat transfer effect, and no effective structural form has been proposed.

Method used

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  • Adjustable pulsating flow enhanced heat transfer heat exchanger

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Embodiment Construction

[0017] The present invention will be further described below with reference to the accompanying drawings, but this description will not constitute a limitation to the present invention.

[0018] like figure 1 As shown in the figure, the adjustable pulsating flow enhanced heat transfer heat exchanger includes a shell 4, a head 1, a tube sheet 3 and a heat exchange tube 5. The inlet end of the heat pipe is fixed on the tube sheet, and the shell is also provided with a shell side inlet 8 and a shell side outlet 6, of which the tube side inlet on one side of the head (the other side of the head is provided with a tube side outlet 2 ). ) is connected to a multi-channel adjustable pulsating flow generating device, and its amplitude and frequency are adjusted by adjusting the rotational speed of the multi-channel adjustable pulsating flow generating device and the flow rate of the branch where it is located, and the multi-channel adjustable pulsating flow generating device includes: ...

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Abstract

The invention relates to a tube and shell heat exchanger, which comprises a shell, sealing heads, tube sheets and heat exchange tubes, wherein the two ends of the shell are connected with the sealing heads on the two sides by the tube sheets respectively; inlet ends of the heat exchange tubes are fixed to the tube sheets; a tube pass inlet on the sealing head on one side is connected with a multi-channel adjustable pulsating flow generation device; and the amplitude and the frequency of the heat exchanger are adjusted by adjusting the rotation speed of the multi-channel adjustable pulsating flow generation device and flow of a branch where the multi-channel adjustable pulsating flow generation device is positioned. The heat exchanger has the advantages that based on the conventional tube and shell heat exchanger, a pipeline provided with a pulsating turbulence device is connected to a tube pass and a shell pass respectively, so that simple modification is performed on the structure form of the conventional heat exchanger; and thus, enhanced heat transfer, scale prevention and scale removal of the conventional heat exchanger can be realized, and the heat exchanger has a simple structure and is easy to realize.

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger, in particular to an adjustable pulsating flow-enhancing heat-transfer heat exchanger that utilizes the working principle of a pulsating flow generator to generate pressure pulsating flow to enhance heat transfer. Background technique [0002] In industrial production, heat exchangers are widely used due to the needs of heat energy transfer, exchange, conversion and control, among which shell-and-tube heat exchangers are the most common. In order to improve the enhanced heat transfer coefficient, scientific and technological workers at home and abroad have carried out research on many aspects such as inserting swirl elements into the tube, enhancing heat transfer by vibration, enhancing heat transfer by electric field, and changing the shape of heat transfer tubes. This type of strengthening is currently the most widely used structural strengthening technology. The insertion of the swirl element ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F13/10
Inventor 喻九阳郑小涛杨文灏林纬徐建民王成刚刘利军聂思皓
Owner WUHAN INSTITUTE OF TECHNOLOGY
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