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A fuel cell hydrogen supply system integrating a hydrogen circulation pump and an ejector in series

A technology of fuel cells and injectors, which is applied in the direction of fuel cells, fuel cell additives, circuits, etc., can solve the problems of long transmission distance, poor stability of split structures, and large volume of split structures, and eliminate The effect of transmission loss, good stability and small size

Active Publication Date: 2021-11-09
YANTAI DONGDE IND CO LTD
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Problems solved by technology

[0008] In order to make up for the deficiencies of the prior art, the present invention provides a fuel cell hydrogen supply system integrated in series with a hydrogen circulation pump and an injector, which solves the need for on-site assembly, complicated pipeline connections, troublesome operation, and low installation efficiency in the past. It solves the problem of large volume and large space occupation of the previous split structure, solves the problems of long transmission distance, loss during transmission, and reduced supercharging efficiency of the previous split structure, and solves the problem of the previous split structure Problems of poor structural stability, large vibration and high noise

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  • A fuel cell hydrogen supply system integrating a hydrogen circulation pump and an ejector in series

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Embodiment Construction

[0023] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, a fuel cell hydrogen supply system in which a hydrogen circulation pump and an ejector are integrated in series includes a hydrogen circulation pump 1 and an ejector, and the ejector is fixedly installed at the hydrogen pump outlet 3 of the hydrogen circulation pump 1 It is integrated with the hydrogen circulation pump 1, and the gas outlet 3 of the hydrogen pump communicates with the low-pressure area 8 in the ejector.

[0025] The ejector includes a nozzle housing 4, and a high-pressure nozzle 5 is arranged inside the nozzle housing 4. The front side of the high-pressure nozzle 5 is a hydrogen source inlet connecting pipe 6, and the rear side of the nozzle housing 4 is connected with an ejector conduit 7. The low-press...

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Abstract

A fuel cell hydrogen supply system in which a hydrogen circulation pump and an ejector are integrated in series, comprising a hydrogen circulation pump and an ejector, the ejector is fixedly installed at the hydrogen pump outlet of the hydrogen circulation pump and integrated with the hydrogen circulation pump In one piece, the gas outlet of the hydrogen pump communicates with the low-pressure area in the ejector. The invention integrates the hydrogen circulation pump and the ejector into one body without on-site assembly, easy to operate during installation, high installation efficiency, small volume, and small space occupation. The hydrogen circulation pump and the ejector are directly connected, and the hydrogen circulation pump comes out The pressurized gas directly enters the ejector, the transmission distance is short, the transmission loss is eliminated, and the boosting efficiency is greatly improved; the overall structure has good stability, strong rigidity, small vibration and low noise during work, and the overall performance is improved.

Description

Technical field: [0001] The invention relates to a fuel cell hydrogen supply system in which a hydrogen circulation pump and an ejector are integrated in series. Background technique: [0002] At present, the commonly used hydrogen circulation devices include ejectors and hydrogen circulation pumps. At present, all ejectors and hydrogen circulation pumps in the industry are split and used separately. This structure has the following disadvantages when used: [0003] (1) On-site assembly is required during installation, and the pipeline connection is complicated. Two sets of pipelines are required to connect the two, which is troublesome to operate and low in installation efficiency; [0004] (2) The ejector and the hydrogen circulation pump are set separately, which is large in size and takes up a lot of space, so it is not easy to install and use in some areas with small space; [0005] (3) The hydrogen circulation pump and the ejector are connected through pipelines, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04082H01M8/04089
CPCH01M8/04097H01M8/04201Y02E60/50
Inventor 邢子义王升科邢晓明
Owner YANTAI DONGDE IND CO LTD
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