Variable-flow gas mixing injection device, fuel cell system and method
A gas mixing and variable flow technology, which is applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of lowering the output flow control accuracy of the injection port, affecting the stable operation of the fuel cell, and wearing and deforming the fitting position, so as to improve the flow control Accuracy, improve controllability, and ensure stable operation
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Embodiment 1
[0035] In an exemplary embodiment of the present invention, as Figure 1-Figure 4 As shown, a variable flow gas mixing ejection device is given.
[0036] like figure 1 The shown variable flow gas mixing ejector is used to assist the gas supply of the fuel cell, to adjust the gas flow input to the fuel cell, especially to control the hydrogen feed amount in the hydrogen fuel cell. Using the gap between the adjustment rod 6 and the injection port 22 as the gas output channel, the adjustment rod 6 can block or open the injection port 22 and adjust the opening degree to adjust the gas flow and meet the gas demand of the fuel cell.
[0037] The variable flow gas mixing ejection device includes a base body, an adjustment rod 6 and a telescopic mechanism. The base body is sequentially provided with a pressure chamber, an introduction chamber, a mixing chamber 24 and a diffusion chamber 25, wherein the pressure chamber communicates with the mixing chamber 24 through the injection por...
Embodiment 2
[0057] In another exemplary embodiment of the present invention, as Figure 1-Figure 4 As shown, a fuel cell system is given that utilizes a variable flow gas mixing ejector as in Example 1.
[0058] like Figure 1-Figure 3 As shown, the fuel cell system utilizes the variable-flow gas mixing and ejecting device as in Example 1, and the end of the diffusion chamber 25 of the variable-flow gas mixing and ejecting device is connected to the fuel cell gas inlet to provide gas for the fuel cell. In this embodiment, for the hydrogen fuel cell, hydrogen gas is input into the hydrogen fuel cell through the variable flow gas mixing ejection device.
[0059] Since the fuel cell system adopts the variable-flow gas mixing and ejecting device provided in the above-mentioned embodiment 1, the beneficial effects brought by the variable-flow gas mixing and ejecting device in the fuel cell system refer to the corresponding parts in the above-mentioned embodiment 1. This will not be repeated ...
Embodiment 3
[0062] In yet another exemplary embodiment of the present invention, such as Figure 1-Figure 4 As shown, a variable flow gas mixing injection method is given.
[0063] The method utilizes the variable flow gas mixing ejection device as in Example 1, and includes the following steps:
[0064] The pressure chamber is connected to an external gas supply source, the adjusting rod 6 moves in the axial direction to leave a gap between the adjusting rod 6 and the injection port 22, and the gas in the pressure chamber is output after passing through the guide channel and the mixing chamber 24;
[0065] Change the size of the gap between the adjustment rod 6 and the injection port 22, so as to adjust the gas flow output from the pressure chamber to the mixing chamber 24;
[0066] The mixing cavity 24 is connected with an introduction cavity, and the recovered gas in the introduction cavity enters into the mixing cavity 24 together with the output gas of the pressure cavity under the ...
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