Intercooling humidifying device and fuel cell system applying same

Abstract

The invention discloses an intercooling humidifying device and a fuel cell system applying the same. The device comprises an air inlet pipeline, a heat exchange device, a humidifying module and a sleeve shell, the heat exchange device sleeves the air inlet pipeline; the humidifying module sleeves the heat exchange device; the humidifying module is sleeved with the sleeve shell; a first air outletis formed in one end of the sleeve shell; dry hot air enters from one end of the air inlet pipeline and flows out in the radial direction, the cooling treatment of the heat exchange device and the humidification treatment of the humidifying module are carried out, low-temperature humid air is formed, and the low-temperature humid air flows out of the first air outlet. The structure integrates thefunctions of intercooling and humidifying, the device is simple in structure, compact and small in occupied overall layout space of the fuel cell system, increases the mutual contact area of the heatexchange device and the humidifying module, increases the airflow circulation capacity, improves the overall efficiency of the fuel cell system, reduces parts and reduces the cost.

Description

Technical field: [0001] The invention relates to an intercooling and humidifying device and a fuel cell system for its application. Background technique: [0002] The fuel cell system includes three major pipeline systems: air intake system, cooling system, and hydrogen supply system. When the fuel cell system is working normally, an air compressor is usually used to pressurize and compress the air, and then send it into the air intake system. The temperature of the air compressed by the air compressor can reach about 120°C. Excessive temperature may cause system failure and even damage the fuel cell stack. The air sent into the stack must be kept at 60-70°C humid air, so that the stack can operate normally and stably, so the air sent into the stack must be cooled and humidified. In the past, it was necessary to use an intercooler to cool the incoming high-temperature air to 60-70°C, then humidify it through a humidifier and then send it to the electric stack for use, and ...

AI Technical Summary

Problems solved by technology

[0003] The current air intake systems of fuel cells are arranged with independent intercoolers and humidifiers. For example, in the patent CN210467989 U, the independently arranged intercoolers and humidifiers require many pipelines to be connected to each other, and the arrangement is complicated and takes up space. , resulting in increased pipeline flow resistance and increased system risk

[0004] In addition, in order to solve the problem of large space occupation, the intercooler module is installed on one side of the humidification module. The contact area between the cold module and the humidification module is small, the airflow through is small, the efficiency is low, and the length is long

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