Patent ID: 7836835

Claim:
A gas incinerator device comprising: a combustion chamber having a heater body producing combustion gas, wherein the heater body is fed with gas independently by a main circuit having first and second valves, to provide a high flow rate, and by a secondary circuit having third and fourth valves, to provide a low flow rate, the main and secondary circuits being connected to a gas line; at least one fan feeding the heater body with cool air to ensure combustion; an exhaust chimney for exhausting the mixture formed by the combustion gas and the cool air; and a buffer tank that is selectively in communication either with the gas line via fifth and sixth valves, to control a pressure therein, or with the heater body via third, fourth, and fifth valves in order to be depressurized, wherein the first and second valves of the main circuit can be closed by a pressure detector, in the event of said at least one fan failing, or can be closed by a flame detector, in the event of failure to ignite, the third and fourth valves of the secondary circuit can be closed by the pressure detector, in the event of said at least one fan failing, and wherein the combustion chamber is mounted in the exhaust chimney in such a manner as to leave an annular duct between the combustion chamber and the exhaust chimney to pass a flow of combustion cool air and/or of cooling air coming from said at least one fan, said combustion chamber having a plurality of injection orifices and/or tubes enabling a fraction of the cool air flowing in the annular duct to be injected therein.