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A fuel cell gas flow distribution device and control method

A gas flow and flow distribution technology, which is applied in fuel cells, electrical components, circuits, etc., can solve the problems of increased power consumption, fuel cell system power increase, and energy waste, so as to improve efficiency, improve system integration, and reduce costs. Effect

Active Publication Date: 2021-08-31
CRRC IND INST CO LTD
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Problems solved by technology

The purpose of doing this is to ensure sufficient supply of gas participating in the electrochemical reaction in the stack, but it will cause a lot of waste of energy, and the power increase of the fuel cell system will also be affected by the increase in power consumption of auxiliary components such as air compressors, volume, weight, etc. Constrained by factors such as exponential growth

Method used

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  • A fuel cell gas flow distribution device and control method
  • A fuel cell gas flow distribution device and control method
  • A fuel cell gas flow distribution device and control method

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specific Embodiment approach

[0105] As mentioned above, the structure of the embodiment of the present invention is obviously different from that of the existing fuel cell power system, and can realize the ability of a single compressor to supply reaction gas to multiple stacks at the same time. The specific implementation method is:

[0106] (1) Under the condition that the external power supply is stable and the hydrogen supply pressure of the fuel cell is normal, the FCc is activated, and the fuel cell power system control unit (i.e. the master controller) starts to work, and the FCc controls the power-on of AFMm, ACMc and ASMc.

[0107] (2) After the ASMc is powered on, first determine the position of the rotating blade CP in the ASMm. If the rotating blade CP is at the preset position, it can ensure that there is no reactive gas remaining in the fuel cell stack and the pipeline of the intake branch pipe. After confirming that the pipeline is in the closed position, ASMc drives ASMm to start working, ...

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Abstract

The embodiment of the present invention provides a fuel cell gas flow distribution device and control method, including a mass flow meter for measuring the actual mass flow of the reaction gas in the intake manifold; a booster module for increasing the pressure of the reaction gas in the intake manifold , so that the reaction gas enters the flow distribution module; the general controller is used to send a preset signal to the flow distribution module; the flow distribution module is used to determine the corresponding preset control strategy according to the preset signal, so that the flow distribution module only It communicates with a target intake branch pipe, and reciprocates to inflate each intake branch pipe. In the embodiment of the present invention, the flow distribution module alternately provides reactive gas to each fuel cell stack, realizing the function of simultaneously providing reactive gas to multiple fuel cell stacks through one compressor, and making the auxiliary power of the fuel cell power system Consumption and cost are reduced; the problem of energy loss and waste is solved, and the efficiency of the fuel cell power system is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a fuel cell gas flow distribution device and a control method. Background technique [0002] In recent years, fuel cell technology has developed rapidly, especially stack technology, plate technology and catalyst technology. The stack power is gradually increased, and the power density is also increased. In terms of system, the volume of fuel cell power system is gradually reduced, and the system integration level is greatly improved. Therefore, the application prospect of fuel cell power system in the field of transportation vehicles is very broad. [0003] With the rapid increase in fuel cell power, the air demand on the cathode side of the stack has also increased significantly. In order to ensure the normal and efficient electrochemical reaction inside the stack, the current high-power fuel cells need to be equipped with an air booster device to ensure sufficient gas con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04746H01M8/04992
CPCH01M8/04753H01M8/04992Y02E60/50
Inventor 张擘刘佰博齐洪峰李明高
Owner CRRC IND INST CO LTD
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