Hydrogen supply system for fuel cell with integrated manifold block

Abstract

Disclosed is a hydrogen supply system for a fuel cell, which has an integrated manifold block in which components for hydrogen supply are integrated and modulated. In particular, a hydrogen supply line, a hydrogen discharge line, and a hydrogen recirculation line are formed in a manifold block mounted on the outside of a plurality of stack modules of a fuel cell stack. Additionally, components of the hydrogen supply system including components for supplying and discharging hydrogen and components for recirculating hydrogen are integrally mounted in predetermined positions of the hydrogen supply line, the hydrogen discharge line, and the hydrogen recirculation line to modularize the manifold block and the components of the hydrogen supply system.

Description

technical field [0001] The present invention relates to a hydrogen supply system for fuel cells with an integrated manifold block. More particularly, the present invention relates to a hydrogen supply system for a fuel cell having an integrated manifold block in which hydrogen supply components are integrated and modularized. Background technique [0002] A typical fuel cell system installed in a fuel cell vehicle includes: a fuel cell stack for generating electricity through an electrochemical reaction; a hydrogen supply system for supplying hydrogen as fuel to the fuel cell stack; an oxygen (air) supply system for Used to supply oxygen-containing air as the oxidant required for the electrochemical reaction in the fuel cell stack; thermal management system (TMS), used to remove the reaction heat from the fuel cell stack to the outside of the fuel cell system, and control the operating temperature of the fuel cell stack and perform water management functions; and a system c...

AI Technical Summary

Problems solved by technology

[0009] First, it requires a large space for piping connections between the components that make up the hydrogen supply system (e.g., hydrogen supply valve, injector, pressure relief valve, purge valve, recirculation fan, etc.), which increases the total volume, so it is difficult to install all the components in a proper layout in a limited volume space such as the engine compartment

[0010] Second, due to the increased length and complicated arrangement of the hydrogen supply line and the hydrogen discharge line constituting the hydrogen supply system piping (i.e., the transfer line), a pressure loss occurs in the hydrogen supply line and the hydrogen discharge line, thus requiring a large amount of energy For the supply and discharge of hydrogen

[0011] Third, due to the increased length and number of hydrogen supply lines and hydrogen discharge lines, there is a higher risk that hydrogen may leak from various connection fittings

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