Back pressure valve for testing fuel cell
A technology of fuel cells and back pressure valves, which is applied in the direction of measuring electricity, valve devices, and measuring devices, and can solve the problems of narrow adjustment range, low adjustment accuracy, and narrow adjustment range of back pressure valves.
Pending Publication Date: 2022-04-12
FTXT ENERGY TECH CO LTD
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Problems solved by technology
The adjustment range of the back pressure valve in the prior art is narrow, the adjustment accuracy is low, and the adjustment speed is slow
Therefore, how to solve the problems of narrow adjustment
Method used
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] like figure 1 As shown, a fuel cell back pressure valve provided by an embodiment of the present invention includes several diaphragm type back pressure valves and several electronic air pumps. It should b...
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The invention discloses a back pressure valve for testing a fuel cell, which comprises a plurality of diaphragm type back pressure valves and a plurality of electronic air pumps, the channel opening ranges of the plurality of diaphragm type back pressure valves are sequentially reduced, the air inlet ends of the diaphragm type back pressure valves are communicated with one another, the air outlet ends of the diaphragm type back pressure valves are communicated with one another, and the electronic air pumps are arranged on the diaphragm type back pressure valves. The diaphragm type back pressure valves are in one-to-one correspondence with the electronic air pumps, the air inlet end of each electronic air pump is used for being communicated with a control air source, and the air outlet end of each electronic air pump is communicated with a control air inlet of the corresponding diaphragm type back pressure valve. The back pressure valve for fuel cell testing is provided with a valve channel with various opening ranges, can be suitable for back pressure control required by fuel cell testing in different power ranges, and can accurately and quickly adjust the control gas inlet amount of the diaphragm type back pressure valve through the electronic gas pump. Therefore, the opening and closing state and the opening degree of the diaphragm type back pressure valve can be accurately and quickly controlled, and the back pressure valve for fuel cell testing is higher in adjusting precision and adjusting speed.
Description
technical field [0001] The invention relates to the technical field of fuel cell testing, in particular to a back pressure valve for fuel cell testing. Background technique [0002] During the fuel cell test process, the pressure of the reactant gas needs to be constantly changed to provide different working conditions for the fuel cell, that is to say, inputting the reactant gas at an appropriate pressure under different working conditions can make the output efficiency of the fuel cell higher. During the test process of the fuel cell, the pressure of the reaction gas is mainly controlled by adjusting the back pressure valve connected to the outlet end of the fuel cell. In the prior art, the adjustment range of the back pressure valve is narrow, the adjustment precision is low, and the adjustment speed is slow. Therefore, how to solve the problems of narrow adjustment range, low adjustment accuracy and slow adjustment speed of the back pressure valve in the fuel cell test ...
Claims
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Login to View More IPC IPC(8): G01R31/36F16K51/00
Inventor 马朋飞李小亮张思朋
Owner FTXT ENERGY TECH CO LTD