A water separator and a fuel cell

Abstract

The invention discloses a water divider and a fuel cell. The water divider includes a first partial water section and a tail partial water section, wherein: the first partial water section includes a main main pipe at the head and a drainage pipe at the head, and the drainage pipe at the first section can The gas separated in the main main pipe at the first part is reversely drained and exported; the tail water section includes the main main pipe at the tail and the drainage pipe at the rear, and the drainage pipe at the rear can carry out reverse drainage and output the gas separated in the main main pipe at the rear. The water separator uses inertial force to separate the liquid droplets in the gas-liquid mixture from the gas, which can ensure good water separation efficiency and solve the technical problems of large device volume and large flow resistance in the prior art. Furthermore, the water separator can also be configured as a multi-level flexible structure to improve the applicability of the water separator.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a water separator and a fuel cell provided with the water separator. Background technique [0002] The existing water separators for fuel cells can be divided into two categories based on basic principles: [0003] (1) Centrifugal force is used to separate liquid droplets, and guide vanes, or baffle structures, or spiral flow channels are used in the water separator to induce the gas-liquid mixture to rotate at high speed, and the liquid droplets are thrown to the water separator under the action of centrifugal force The inner wall of the device and flow down to achieve the purpose of separation from the gas; [0004] (2) Utilize the droplet adhesion, adopt filter element or corrugated plate and other structures to increase the contact area between the droplet and the surrounding wall surface, so that the droplet adheres to the wall surface and achieves the purpose of separat...

AI Technical Summary

Problems solved by technology

[0005] For the first type of device, considering the water separation efficiency, the gas-liquid mixture needs to form a sufficiently large vortex and centrifugal force, so the size of the water separator is relatively fixed and the volume is large, which is not conducive to improving the layout and integration applicability of the water separation device and the system Volume power density

For the second type of device, the flow resistance is too large, which leads to an increase in the performance requirements of the circulation device; under the action of long-term gas flushing, the internal material may fall off, block the flow channel, and seriously affect the performance of the fuel cell

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