Gas regulation assembly, fuel cell and vehicle

Abstract

The invention provides a gas regulation assembly, a fuel cell and a vehicle. The gas regulation assembly comprises an integrated module, wherein the integrated module is provided with a gas inlet and a gas outlet which are communicated with each other, the gas inlet comprises a first gas inlet used for being connected with a gas source and a second gas inlet used for being connected with an outlet of a cell stack, and the gas outlet is used for being connected with an inlet of the cell stack. The first gas inlet enables high-pressure hydrogen in the gas source to enter the integrated module through the first gas inlet, the second gas inlet is connected with the outlet of the cell stack, the second gas inlet enables residual gas after cell stack reaction to pass through a steam-water flow divider and a circulating device and then enter the integrated module again, and the reacted gas can enter the cell stack again to react, so that the temperature and humidity of the gas are improved. Meanwhile, various gas supply control components are integrated together, so that the gas leakage rate of an external pipeline joint is reduced, safe and reliable operation of the system is ensured, the overall size and weight are reduced, and the power density and the power generation efficiency are improved.

Description

technical field [0001] This application relates to the field of fuel cells, and in particular, to gas conditioning assemblies, fuel cells and vehicles. Background technique [0002] The fuel cell power generation process requires the input of hydrogen from the anode, and the hydrogen storage tank contains high-pressure hydrogen, which cannot be directly supplied. After multi-stage decompression, it is input to the front end of the system, but it is still in a high-pressure state, and the system’s own pressure adjustment device is also required. According to the current demand of the system, to precisely control the hydrogen pressure entering the stack; to ensure that the pressure difference on both sides of the reaction membrane is within the normal range, and to avoid damage to the stack due to overshooting, it is necessary to set a pressure relief valve. In order to ensure a sufficient reaction, excess hydrogen will be put into the reactor, and the remaining hydrogen after...

AI Technical Summary

Problems solved by technology

In order to ensure a sufficient reaction, excess hydrogen will be put into the reactor, and the remaining hydrogen after the reaction will not be recycled, resulting in waste and reducing the fuel utilization rate

At present, there are many types of components, different interface specifications, and poor integration. The more pipeline connections, the greater the risk of leakage, poor stability, and large volume, which is not conducive to installation and maintenance.

Images