System of preventing backflash in pre-mixed hydrogen burner and method thereof
AssigneesHyundai Motor Company, Kia Corporation
InventorTae-Heum PARK
Life of this patent
Estimating the term…
Abstract
A system for preventing backflash in a pre-mixed hydrogen burner includes a hydrogen burner including a mixture pipe connected to a hydrogen supply flow-path tube along which hydrogen is guided and a combustion air supply flow-path tube along which combustion air is guided, wherein a mixture of the hydrogen and the combustion air is combusted at a combustion nozzle end portion of a pipe connected to the mixture pipe, and a control unit configured to perform a first control to purge the pipe and to interrupt supply of the hydrogen, in a case where backflash propagates or is likely to propagate from the combustion nozzle end portion to the mixture pipe during the combustion.
Claims20
A system of preventing backflash in a pre-mixed hydrogen burner, the system comprising:
- the hydrogen burner including a mixture pipe connected to a hydrogen supply flow-path tube along which hydrogen is guided and a combustion air supply flow-path tube along which combustion air is guided, wherein a mixture of the hydrogen and the combustion air is combusted at a combustion nozzle end portion of a pipe connected to the mixture pipe;
- and
- a control unit configured to perform a first control to purge the pipe and to interrupt supply of the hydrogen, in response that the backflash propagates or is likely to propagate from the combustion nozzle end portion to the mixture pipe during the combustion.
A system of preventing backflash in a pre-mixed hydrogen burner, the system comprising:
- the hydrogen burner including a mixture pipe connected to a hydrogen supply flow-path tube along which hydrogen is guided and a combustion air supply flow-path tube along which combustion air is guided, wherein a mixture of the hydrogen and the combustion air is combusted at a combustion nozzle end portion of a pipe connected to the mixture pipe;
- and
- a control unit configured for measuring in real time an amount of the hydrogen flowing to be supplied and an amount of the combustion air flowing to be supplied and compute an equivalence ratio of the combustion air to the hydrogen to detect in real time that the backflash is likely to propagate from the combustion nozzle end portion to the mixture pipe during the combustion, and to purge the pipe and to interrupt supply of the hydrogen, in response that the determined equivalence ratio satisfies a predetermined backflash boundary condition and thus the backflash is likely to propagate from the combustion nozzle end portion to the mixture pipe during the combustion.
A system of preventing backflash in a pre-mixed hydrogen burner, the system comprising:
- the hydrogen burner including a mixture pipe connected to a hydrogen supply flow-path tube along which hydrogen is guided and a combustion air supply flow-path tube along which combustion air is guided, wherein a mixture of the hydrogen and the combustion air is combusted at a combustion nozzle end portion of a pipe connected to the mixture pipe;
- a backflash-detection pressure sensor, a backflash-detection vibration sensor, a backflash-detection ion prober, and a backflash detection and spark detection sensor that are sequentially provided in a front and rear direction with respect to the pipe to detect in real time that the backflash propagates from the combustion nozzle end portion to the mixture pipe during the combustion;
- and
- a control unit configured to perform a first control to purge the pipe and to interrupt supply of the hydrogen in response of detecting that the backflash propagates from the combustion nozzle end portion to the mixture pipe.
Dependencies are inferred from the claim text.