Band-bubble type heat-exchanger

A heat exchanger and thermal fluid technology, applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve the problems of uneven deformation of plates, low working temperature and working pressure, and low yield, etc. To achieve the effect of increasing the heat exchange area, improving the heat exchange efficiency, and improving the pressure bearing capacity

Inactive Publication Date: 2006-10-25
EAST CHINA UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

However, there are inevitably the following shortcomings: First, the use of rubber or similar materials for sealing gaskets makes the working temperature and working pressure lower, and the efficiency is lower; second, because of the characteristics of the structure, it is difficult Reinforcement, it is difficult to align the sealing grooves between the corner holes and the plates, which requires high manufacturing precision and is difficult to manufacture; third, when the temperature and pressure differences between the heat exchange media are large, it is easy to cause the gap between the plates Uneven deformation causes the device to fail; Fourth, due to the long sealing perimeter, the heat exchange medium is easy to leak during assembly and use, and the rubber pad is easy to age and damage
At present, in order to increase the operating temperature and working pressure, there are also all-welded structures for this type of heat exchanger, but because the overall one-time welding area is large, the welding quality of the inner channel is not easy to detect, repair and repair welding, so the yield rate is low. Economic investment is also relatively high

Method used

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Embodiment

[0044] The plate-bubble heat exchanger is used as a small cooler (mainly used for cooling and heat dissipation in some working conditions), and the overall aluminum alloy material is used, and the high-conductivity foam material based on aluminum alloy (open cell structure, the opening ratio is 90 %) is used as the fluid channel of the cooler, and its core size is 20cm (width) × 20cm (length) × 13.7cm (height), adopting a cross-flow flow form, in which there are 10 channels for cold medium and 5 channels for heat medium , the average pore diameter of the porous material in the channel section is 1.5mm, the overall pressure drop is 0.5kPa, the core body weight is 1.5kg, which is less than 1 / 10 of the structure type of the plate-fin heat exchanger, and the actual heat exchanger area is 881m 2 , is more than 200 times the structural form of the plate-fin heat exchanger. The size of the average pore diameter has a great influence on the performance of the heat exchanger. With the ...

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Abstract

The invention relates to a heat exchanger with new type structure that has end plate, nipple, and core identity. And the end plate is set at the two sides of liquid channel. The core identity is formed by plural cool liquid channel and hot liquid channel. The liquid channel is formed by porous material of 3D solid reticular formation, and is sealed by guarantee strip. Catalyst coating layer is coated on the surface of the porous material liquid channel inner holes and make the exchanger has high heat efficiency.

Description

technical field [0001] The plate-bubble heat exchanger of the present invention relates to a heat exchanger capable of exchanging heat between at least two media, in particular to a new type of structural material as the material of the heat exchanger, which is suitable for various media and different operators. A new structure heat exchanger in which cold and hot fluid media do not contact each other under normal conditions. Background technique [0002] In order to solve the many shortcomings of traditional heat exchangers, especially the problem of low heat exchange efficiency, it is necessary to consider its structural design, that is, by designing different structures, increasing the heat transfer area, increasing the disturbance of fluid flow, and reducing the thickness of the heat exchanger. The bottom layer of laminar flow improves the convective heat transfer coefficient to improve the heat exchange efficiency of the heat exchanger. Based on the above consideration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/02F28F3/06
Inventor 涂善东周帼彦于新海王正东轩福贞
Owner EAST CHINA UNIV OF SCI & TECH
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