A ceramic matrix composite material heat exchange tube
A composite material tube and composite material technology, applied in the field of ceramic matrix composite material heat exchange tubes, can solve the problems of low efficiency of heat exchange tubes, achieve the effects of increasing heat exchange efficiency, high energy conversion efficiency, and increasing contact area
Active Publication Date: 2016-05-04
TAICANG PAIOU TECH CONSULTING SERVICE
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AI Technical Summary
Problems solved by technology
[0006] The invention aims to overcome the problem of low efficiency of traditional heat exchange tubes and provide a ceramic matrix composite heat exchange tube with simple structure and high heat exchange efficiency
Method used
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Embodiment 1
[0016] A heat exchange tube of ceramic matrix composite material, including SiC foam, carbon fiber reinforced silicon carbide composite material tube, and connecting tube for clamping. The SiC foam has an open-cell structure and is filled in the tube body of the composite material tube, and the hole wall is connected to the tube wall; the tube wall thickness of the base composite material tube is 0.2 cm, and both ends are connected to the machined connecting tube by CVD deposition of Nb.
Embodiment 2
[0018] A ceramic matrix composite material heat exchange tube, including SiC foam, silicon carbide whisker reinforced silicon nitride composite material tube, and connecting tube for clamping. The SiC foam has an open-cell structure, which is filled in the composite tube body, and the hole wall is connected to the tube wall; the tube wall thickness of the composite tube is 0.3 cm, and the two ends are connected to the machined connecting tube by CVD deposited Ni.
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Abstract
A ceramic-based composite material heat exchange tube is characterized in that the ceramic-based composite material heat exchange tube comprises SiC foam, a ceramic-based composite material tube and a connecting tube for conducting clamping. The SiC foam is filled into the tube body of the ceramic-based composite material tube and is of an open hole structure, the hole wall is connected with the metal tube wall, and the inner portion of the foam is of a three-dimensional network structure and has a large surface area so that the inner portion of the foam can be conveniently filled with various solid substances, liquid substances and gas substances. The tube wall of the ceramic-based composite material tube is very thin, the thickness of the tube wall ranges from 0.1cm to 0.5cm, the hole opening rate is smaller than 3%, and the side wall gas leakage rate is zero. The connecting tube is a stainless connector sleeve and combined with the periphery of the ceramic-based composite material tube through metallurgy. By means of the ceramic-based composite material heat exchange tube, the contact area between the tube wall and liquid and gas flow in the tube and the contact area between the tube wall and the outside are enlarged through the antioxidation SiC foam, and the heat exchange efficiency is high. Meanwhile, the ceramic-based composite material heat exchange tube is simple in structure, light in weight, capable of resisting oxidation, quite good in tenacity, rigidity and high-temperature strength, and convenient to manufacture and use.
Description
technical field [0001] The invention relates to a heat exchange tube, in particular to a ceramic matrix composite material heat exchange tube. Background technique [0002] Some parts of the machine will generate a lot of heat during operation. In order to avoid excessive heat accumulation and damage to these parts due to excessive temperature, the machine is generally equipped with a coolant circulation system to ensure that the heat generated by these parts It can be discharged in time. The heat exchange tube is used as the circulation channel of the coolant and is one of the main components used in the coolant circulation system. When the coolant circulation system is working, the coolant (water or other liquid) absorbs a large amount of heat and becomes a high-temperature and high-heat liquid , the high-temperature and high-heat liquid flows along the circulation channel composed of heat exchange tubes and continuously releases heat to the outside. Reabsorb heat and con...
Claims
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IPC IPC(8): F28F21/00
Inventor 陈照峰聂丽丽
Owner TAICANG PAIOU TECH CONSULTING SERVICE