JPS6076871U - Fuel cell electrolyte circulation device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing electrolyte circulation in a conventional fuel cell, and FIG. 2 is a circuit diagram showing electrolyte circulation in a fuel cell embodying the present invention. 1a: Electrolyte chamber, 3c: Auxiliary pipe, 4a: Electrolyte discharge manifold, 5: Drain pipe.

Claims (1)

[Scope of utility model registration request] An electrolytic solution is supplied to a supply manifold provided at the bottom of a fuel cell stack formed by stacking unit cells horizontally, and the electrolytic solution inside the stack is maintained so that the liquid pressure of the electrolytic solution is kept lower than the gas pressure of the supply gas. After flowing into the liquid chamber, the electrolyte is led out of the stack through a discharge manifold provided at the top of the stack, and the gas mixed in the discharged electrolyte within the stack is disposed below the stack position. In an electrolyte circulation/recirculation device that separates the electrolyte from the electrolyte in a gas-liquid separator, in addition to the flow rate of the electrolyte flowing through the electrolyte chamber, there is also a gas that may be mixed into the drawn-out electrolyte. An electrolyte circulation system for a fuel cell, characterized in that an auxiliary pipe for additionally injecting electrolyte into the discharge manifold at a flow rate sufficient to forcibly transfer bubbles is branched from the electrolyte supply system and provided directly to the discharge manifold. return device.