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A device and method for increasing the inlet temperature of the cathode and anode of a fuel cell

A fuel cell, intake air temperature technology, applied in fuel cells, electrical components, circuits, etc., can solve problems such as unrealizable, limited storage capacity, difficulty in waste heat collection and storage, etc., to increase the overall temperature and improve cathode intake air temperature, the effect of shortening the start-up time at low temperature

Active Publication Date: 2021-04-27
WUHAN HYDRAV FUEL CELL TECH CO LTD
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Problems solved by technology

However, there are technical difficulties in the collection and storage of waste heat, and the storage capacity is also severely limited, so it is impossible to realize full recovery and full utilization of energy in the true sense.

Method used

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  • A device and method for increasing the inlet temperature of the cathode and anode of a fuel cell
  • A device and method for increasing the inlet temperature of the cathode and anode of a fuel cell
  • A device and method for increasing the inlet temperature of the cathode and anode of a fuel cell

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 creative efforts fall within the protection scope of the present invention.

[0028] Such as Figure 1 to Figure 3 As shown, the present embodiment provides a device for increasing the intake air temperature of the anode and cathode of a fuel cell, including an air intake and exhaust system, a hydrogen intake and exhaust system, a low-temperature auxiliary heating system, and a corresponding electrical control system.

[0029] The air inlet and exhaust system includes an air compressor, an intercooler, and a humidifier connected in sequence through pipelines, and the humidifier is connected to the fuel cell stack through a multi-way valve, and the multi-way valves (M1, M2, M3) ...

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Abstract

The invention discloses a device and method for increasing the temperature of the anode and cathode of a fuel cell, including an air intake and exhaust system and a hydrogen intake and exhaust system. Detection and precise control, by using the self-boosting power of the air compressor, the boosted air with a suitable temperature enters the stack through multiple bypasses, increasing the cathode intake temperature, without redundant external auxiliary equipment, and without excessive cost investment , which is convenient for vehicle operation. The hydrogen inlet and exhaust system uses a cooling circuit to realize the heat exchange system through the water heat cycle to raise the temperature of the anode hydrogen. At the same time, the temperature of the cathode air is raised, which directly melts the ice crystals in the diffusion layer, meets the requirements of the electrochemical reaction, and realizes non-reliable heat conduction in a true sense, which can completely solve the problem of low-temperature start-up of the core component of the fuel cell engine, the stack. To solve the problem, shorten the low temperature start-up time. And the low temperature mode can still be used at normal temperature.

Description

technical field [0001] The invention relates to the technical field of low-temperature start-up of a new energy hydrogen fuel cell engine, in particular to a device and a method for increasing the intake air temperature of a cathode and anode of a fuel cell. Background technique [0002] A fuel cell is an energy conversion device that completes the chemical reaction discharge through the hydrogen and oxygen inside it under the action of catalysis, and then realizes energy conversion. Its advantage is that the only product after the reaction is water, so it is called "the ultimate energy source in the 21st century". Because it is regarded as the main energy source to replace fossil energy, it is currently mainly used in the field of new energy vehicles, which we call hydrogen fuel cell engines. At present, hydrogen fuel cell engine technology is gradually mature, and its stability is developing for the better. It has received high attention in the field of public transportat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04119H01M8/04302H01M8/04701H01M8/04828
CPCH01M8/04126H01M8/04708H01M8/04835H01M8/04302Y02E60/50
Inventor 董志亮江洪春于强秦连庆唐廷江
Owner WUHAN HYDRAV FUEL CELL TECH CO LTD
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