Fuel cell membrane tube humidifier
A technology for fuel cell membranes and humidifiers, applied in fuel cells, electrochemical generators, circuits, etc., can solve problems such as not having too many adjustments, improve humidification performance, reduce flow resistance, and save internal effect of space
Pending Publication Date: 2020-02-07
SHENZHEN EXTENDER CO LTD
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Problems solved by technology
Moreover, the setting of this partition is mainly to improve the humidification efficiency of the membrane tube humidifier by improving the distribution of humid gas outside the tube and reducing the flow resistance of the humid gas, and does not have much effect on the distribution of dry gas. regulation
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[0019] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following will further explain the present invention with reference to the drawings and implementation cases. It should be understood that the specific embodiments described here are only used to explain the content of the present invention, and cannot be used as a limitation to the present invention.
[0020] The traditional fuel cell membrane tube humidifier 100 uses a hollow fiber membrane tube 160 encapsulated in it to migrate the moisture in the humidified gas distributed on the outer wall of the tube to the tube, thereby humidifying the dry gas passing through the tube. figure 1 Shown. When the size of the tube bundle is larger and the number of membrane tubes increases, most of the dry gas flows mainly along the inside of the hollow fiber membrane tube 160 in the central part of the hollow fiber membrane bundle. At the same time, the membrane tubes in the hollow...
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The invention discloses a fuel cell membrane tube humidifier. The distribution of dry and wet gases entering the humidifier is regulated and controlled through the ordered or disordered arrangement ofmembrane tubes with central through holes of different diameters, the contact area of the dry and wet gases on the inner and outer surfaces of the membrane tubes is maximized, the heat and moisture exchange efficiency can be improved, and the high-efficiency humidification is realized. The humidifier comprises a shell, hollow fibrous membrane tubes and end caps, the shell includes a shell body, ahead end, a tail end, a humid gas inlet and a humid gas outlet, the head end and the tail end are matched with the shell body, and the humid gas inlet and the humid gas outlet are arranged at the twoends of the shell body; the two ends of each hollow fibrous membrane tube are encapsulated at the head end and the tail end by sealing materials, thereby guaranteeing that the central through hole ofeach membrane tube cannot be blocked, the central through holes of the hollow membrane tubes have different diameters, and the membrane tubes with the central through holes with the larger diameter are used at the region through which the humid gas centrally passes; and the end caps are connected with the head end and the tail end, and dry gas inlet and outlet are provided.
Description
Technical field [0001] The invention relates to a fuel cell membrane tube humidifier, in particular to a fuel cell membrane tube humidifier capable of rapid response and high humidification performance, especially suitable for high-power fuel cell stacks. Background technique [0002] With the increasing reduction of petroleum fuels and the increasing environmental pollution problems, the world has begun to move towards the post-petroleum economy era. As substitute products for petroleum, new energy and renewable energy are growing and developing rapidly. Among them, hydrogen energy, as one of the new energy sources with broad development prospects in the future, has received more and more attention. As one of the new energy technologies, the fuel cell directly converts the chemical energy stored in the fuel into electric energy. Because of the reduction of energy conversion links, it has an energy conversion efficiency much higher than that of an internal combustion engine. In ...
Claims
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IPC IPC(8): H01M8/04119
CPCH01M8/04126H01M8/04149Y02E60/50
Inventor 文兆辉刘慧冯炎石一鸣刘潮
Owner SHENZHEN EXTENDER CO LTD