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841 results about "Gas burner" patented technology

A gas burner is a device that produces a controlled flame by mixing a fuel gas such as acetylene, natural gas, or propane with an oxidizer such as the ambient air or supplied oxygen, and allowing for ignition and combustion.

Integrated fuel cell hybrid power plant with controlled oxidant flow for combustion of spent fuel

InactiveUS20050079395A1Reduction of fuelReduction of carbon monoxide emissionFuel cells groupingFuel cell auxillariesElectric forceRecuperator
A hybrid power generation system for generating electrical power comprises a compressor for producing a compressed oxidant and a recuperator in flow communication with the compressor. The hybrid power generation system further comprises a fuel cell assembly comprising a plurality of fuel cells in flow communication with the recuperator to provide the compressed oxidant for the fuel cell assembly. The fuel cell assembly further comprises a cathode inlet for receiving the compressed oxidant, an anode inlet for receiving a fuel stream, an anode outlet in flow communication with an anode exhaust stream and a cathode outlet in flow communication with a cathode exhaust stream, wherein at least a portion of the fuel reacts with the oxidant to produce electrical power. The hybrid power generation system further comprises a tail gas burner in flow communication with the anode outlet and the cathode outlet. The tail gas burner is configured for combusting a mixture of at least a portion of the anode exhaust stream and at least a portion of the cathode exhaust stream and producing a hot compressed gas. A control system is used for controlling the amount of the cathode exhaust stream introduced in the tail gas burner for stable combustion and reduction of fuel and carbon monoxide emission. The hot compressed gas from the tail gas burner is introduced to a turbine, where the hot compressed gas is expanded, thereby producing electrical power and an expanded gas.
Owner:GENERAL ELECTRIC CO

Fire simulation experiment platform for tunnel

InactiveCN101726370AImprove visibilityEasy to observe effectivelySimultaneous control of electric and non-electric variablesAerodynamic testingVisibilityControl system
The invention discloses a fire simulation experiment platform for a tunnel, which comprises a platform main body, a smoke control system, a fire source simulation system and a matched measurement and control system, wherein the platform main body can move horizontally, and at least two of the front surface, the upper surface and the back surface of the platform main body are made of fire-proof transparent materials; the smoke control system can simulate longitudinal wind in the tunnel; the fire source simulation system comprises a porous gas burner capable of controlling fuel flow rate; and the matched measurement and control system comprises a gas component measuring system and a smoke temperature measuring system, wherein the gas component measuring system is used for measuring gas components of burning products, and the smoke temperature measuring system is used for measuring the temperature in the tunnel. In the invention, the fire simulation experiment platform for the tunnel enables the inside of a simulated tunnel to have good visibility, can be used for conveniently and effectively observing the conditions in the tunnel and optically measuring the characteristics of the flow field through laser sheets, and can also realize the purpose of controlling the power of the fire source according to research needs.
Owner:UNIV OF SCI & TECH OF CHINA

Porous medium combustion apparatus of combustion use liquid fuel

The invention relates to a porous medium combustion apparatus of combustion use liquid fuel, which comprises a burner shell, a fuel injector, a premixing chamber, a perforated plate, a pulse igniter, porous foam ceramics, and a porous medium pellet and is characterized in that the perforated plate divides the combustion apparatus into a combustion chamber and an upper part and a lower part of the premixing chamber; the combustion chamber is internally provided with the porous medium pellet which is supported by the lower foamed ceramics; the space bond by the foamed ceramics is internally provided with the fuel injector and the pulse igniter; the premixing chamber is connected with an air inlet and a fuel gas inlet; the combustion apparatus preheats the foamed ceramics by the combustion of the gas fuel, and then sprays the liquid fuel on the foamed ceramics to realize the vaporization and combustion of the liquid fuel. The porous medium combustion apparatus of the f combustion use liquid fuel has effects and benefits that the combustion apparatus can burn the liquid fuel such the gas oil difficult to be burned in free space, industrial flammable waste liquor and the like, has the function of a gas burner; the combustion apparatus does not need a vaporizing unit internally and is characterized by high combustion efficiency and low pollutant discharge.
Owner:DALIAN UNIV OF TECH

Gas burner capable of adjusting gas to be self-recycling

The invention discloses a gas burner capable of adjusting gas to be self-recycling. The gas burner capable of adjusting the gas to be self-recycling comprises a center fuel pipe, a primary rotational-flow air duct, a secondary direct-flow air duct and an ejector, wherein the center fuel pipe, the primary rotational-flow air duct, the secondary direct-flow air duct and the ejector are coaxial from inside to outside and sequentially embedded in a sleeved mode. A fuel nozzle is formed in the outlet segment of the center fuel pipe, an air cyclone and a pre-mixing chamber are arranged inside the primary rotational-flow air duct, the primary rotational-flow air duct and the pre-mixing chamber are communicated with the fuel nozzle, both an outlet of the pre-mixing chamber and the outlet end of the secondary direct flow air duct are arranged at the throat position of the ejector, a main flame burning area is formed at the throat position of the ejector, an electronic igniter is further arranged inside the primary rotational-flow air duct, one end of the electronic igniter penetrates through the air cyclone, the ignition electrode of the electronic igniter is arranged inside the pre-mixing chamber, the end surfaces, being connected with the head of the burner, of the ejector are of a sawtooth disk structure and meshed with each other, and linkage mechanisms are arranged at the positions of the sawtooth disk structures and fixed on the outer pipe wall of the secondary direct-flow air duct. The gas burner capable of adjusting the gas to be self-recycling has the advantages of being easy to manufacture, and capable of achieving the objective that the adapting range of fuel is wide, burning efficiency is high, burning is stable, and pollution is low.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Ultra-low-NOx gas burner

The invention relates to an ultra-low-NOx gas burner. The ultra-low-NOx gas burner comprises a central drum, a swirler, a gas gun group, a throat opening, a front panel and a shell; the swirler is arranged at a connector of the central drum, the throat opening and the shell are coaxially arranged on the periphery of the central drum, the gas gun group is composed of multiple inter gas guns, multiple middle gas guns and multiple outer gas guns, and the front panel is provided with opposite penetrating gas flow holes and outer gas gun nozzle containing holes; a central drum cavity is a center combustion-supporting air passage, an annular cavity between the central drum and the throat opening is a direct-current combustion-supporting air passage, and an annular cavity between the periphery of the throat opening and the shell is a cooling air passage; the inner gas guns and the middle gas guns are arranged in the direct-current combustion-supporting air passage, and the outer gas guns are arranged in the cooling air passage. In the working process, due to the fact that gas sprayed from the middle gas guns is transition gas, segmented configuration and staged combustion are achieved, sufficient combustion of the gas in the dispersed state can be achieved, the content of oxygen in a furnace hearth is effectively diluted, the emission amount of NOx is decreased to below 10 ppm, and CO is not generated.
Owner:SHANGHAI WISEBOND TECH

Outdoor gas barbecue grill with an electric self-cleaning unit

An outdoor gas barbecue grill having an electric self-cleaning unit. The gas barbecue grill includes a grill housing, a grill cover, and a lower grill housing for receiving a gas burner and a cooking grate member. The underside of the cooking grate member includes a plurality of heating members made of metal attached thereto. One of the walls of the lower grill housing includes an electric self-cleaning heating unit mounted thereon and includes an electrical conductor member having a plurality of heating elements for detachably connecting to the plurality of heating members on the cooking grate. During a self-cleaning cycle, the heating members are heated to at least 500° F. in order to burn-off and clean the encrusted and burnt food residues on the cooking grate member for sanitizing the cooking grate member. The grill housing further includes a grill lock connected to the grill cover and to the lower grill housing for locking the grill cover relative to the lower grill housing in order to maintain and control the heat production (ΔH) within the closed gas grill for cleaning the cooking grate member during a self-cleaning cycle. Further, one of the walls of the lower grill housing includes an exhaust fan being attached thereto for venting and dissipating the vaporized fumes to the outside air from the burning of the encrusted food residues on the cooking grate member during the self-cleaning cycle.
Owner:DRUIN CHAIM
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