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A gas-liquid separator for a fuel cell

A gas-liquid separator and gas-liquid mixing technology, applied in fuel cells, separation methods, electrical components, etc., can solve problems such as hindering mobile power stations from compressing the volume and limited potential for volume optimization.

Active Publication Date: 2021-07-06
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas-liquid separator is an indispensable and important part of methanol fuel cell water management, but the volume optimization potential of the gas-liquid separator relying on the principle of gravity separation is limited, which hinders the further compression of the methanol fuel cell mobile power station

Method used

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  • A gas-liquid separator for a fuel cell
  • A gas-liquid separator for a fuel cell
  • A gas-liquid separator for a fuel cell

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Experimental program
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Embodiment

[0033] 1. The main structure of the separator is made of polyetherimide, which is completed by engraving technology and bonding technology. The upper layer of the water recovery box is the inner wall of the gas-liquid mixed medium cavity, and the polydimethylsiloxane film is attached to the bottom of the water recovery box. The heating base is made of stainless steel 316L material.

[0034] 2. The structure of the separator is divided into two parts. The gas-liquid mixed medium passes through the channel of the centrifugal mosquito coil (1) at the front end, and passes through the water recovery box (2) at the rear end; the outermost ring extension port of the mosquito coil (1) is the inlet. It is connected to the outlet of the fuel cell radiator, and the innermost ring extension port is connected to the inlet of the water recovery box (2) at the rear end. The pipe diameter is set to 5mm and surrounds it for 5 circles; the water recovery box (2) is divided into upper and lower ...

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Abstract

The present invention is a small gas-liquid separator for fuel cells. According to the centrifugal separation principle of the present invention, water droplets make circular motion in the mosquito coil, which produces a settling acceleration 400 times greater than that of gravity settling principle, and the effect of gas-liquid separation is good. The gas-liquid mixed medium cooling gas passes through the serpentine chamber, and hits the wall at the turnback of the serpentine channel, effectively depositing and improving the water recovery efficiency.

Description

technical field [0001] The invention belongs to the innovative technology of fuel cell components. To be precise, it belongs to the innovative technology of methanol fuel cell gas-liquid separator. Background technique [0002] At present, methanol fuel cell has become a new energy research hotspot due to its high energy conversion efficiency, no pollution, low noise and many other advantages. Methanol fuel cells have a promising market prospect because they can be used for outdoor camping, vehicle power supply and off-grid power generation. [0003] The minimization of volume is always the goal of fuel cell system optimization. In addition to the effective use of space, the miniaturization of the internal components of the system is the fundamental solution to the "slimming" of mobile fuel cells. At present, methanol fuel cell gas-liquid separators above 100 watts are bulky because they rely on the principle of gravity separation and require a long droplet settlement dist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04119H01M8/0662H01M8/2465H01M8/1011B01D45/16B01D45/18
CPCY02E60/50
Inventor 孙海张盟孙公权
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI