Direct liquid fuel cell system

Abstract

A direct liquid fuel cell system includes a cathode tail gas separating / radiating device. The cathode tail gas separating / radiating device is composed of a sealed chamber body and a hollow fiber tubebundle placed therein. A first partition plate and a second partition plate are respectively arranged at the left and right ends of the sealed chamber body, and divide the sealed chamber body into left, middle and right sealed chambers which are not communicated. A hot material inlet is arranged on the outer wall of the left chamber. A gaseous hot material outlet is arranged on the upper outer wall of the right chamber, and a liquid hot material outlet is arranged on the lower outer wall of the right chamber. A cold material inlet and a cold material outlet are arranged on the outer wall of the middle chamber. The hollow fiber tube bundle is placed in the middle chamber. One end of each hollow fiber tube in the hollow fiber tube bundle passes through the first partition plate to be communicated with the left chamber, and the other end passes through the second partition plate to be communicated with the right chamber. The polymer material is resistant to acid and alkali corrosion, lowin density and low in cost, and the processing and manufacturing process is simple.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a direct liquid fuel cell system. Background technique [0002] The radiator is an important part of the fuel cell system, and it is very important for the water and heat management of the fuel cell system. Traditional heat sinks are generally made of metal materials, which use the good thermal conductivity of metals to increase the heat dissipation flux by increasing the heat dissipation area. For example: aluminum, copper plate-fin, tube-fin, spiral finned tube radiators, etc. The disadvantages of this heat sink include: high manufacturing cost due to complicated process, and high material cost due to metal material. Not only that, but the current expansion method by increasing the heat dissipation surface area of ​​the radiator is almost extreme, and it is difficult to increase the heat dissipation capacity of the radiator in a larger span. In recent years, d...

AI Technical Summary

Problems solved by technology

The disadvantages of this radiator include: high manufacturing cost caused by complex process, high material cost caused by metal material

[0003] However, there are still difficulties in applying micropipe radiators to fuel cell systems such as processing, cost, etc.

High processing costs of metal molds and metal microtubes, or problems such as metal ion dissolution and pollution of fuel cell membrane electrodes

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