Combustion chamber of solid oxide fuel cell and method for automatic temperature control thereof

Abstract

The invention discloses a combustion chamber of a solid oxide fuel cell, comprising an inlet gas mixing unit and a combustion chamber unit, wherein the inlet gas mixing unit comprises a combustion chamber air duct, a cold air bypass duct, a combustion chamber fuel duct, a gas rotator and a bottom fixing shell; the combustion chamber unit comprises an electrically heating wire, a heat storage material, a heat insulating material, a combustion chamber outer wall, and a chamber temperature measuring thermocouple. The combustion chamber of the solid oxide fuel cell in the invention automatically monitors the temperature when the solid oxide fuel cell system performs state switching, and turns on the electric heating device when the temperature is too low, and raises the temperature of the combustion chamber; when the temperature is too high, the cold air bypass duct is turned on, the combustion chamber is cooled, so as to maintain the combustion chamber in the combustion reaction temperature range, so that the combustible gas mixture can be completely burned under the thin concentration condition, and complete combustion and temperature balance of the combustion chamber under the system state switching is ensured. The invention also discloses a method for automatically controlling the temperature of the combustion chamber of the solid oxide fuel cell.

Description

technical field [0001] The invention relates to the technical field of solid oxide fuel cells, in particular to a combustion chamber of a solid oxide fuel cell and an automatic temperature control method thereof. Background technique [0002] Energy issues and environmental issues are two major issues facing human society today, and the key to solving energy and environmental issues is to find environmentally friendly and efficient alternative energy sources, and fuel cell power generation technology has emerged as the times require. One of the fuel cell power generation technologies is the solid oxide fuel cell power generation technology. The solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) is a method that directly converts chemical energy stored in fuel and oxidant into electrical energy in an efficient and environmentally friendly manner. The all-solid-state chemical power generation device has become one of the green energy sources with great development potential i...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing combustion chambers are catalytic combustion chambers, which require expensive catalysts to complete the reaction in the combustion chamber, which significantly increases the production cost. The existing open flame combustion chambers also have unstable combustion and lack independent temperature control of the combustion chamber process

Among the known disclosed inventions, the inventor's patent applications for various burners have not combined with the solid oxide fuel cell system to carry out specific design and control of the combustion chamber in the system to ensure that the combustion chamber is normal functioning of the system

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