324 results about "Gas burner" patented technology

The application relates to the technical field of gas stoves, in particular to a gas burner and an updraft combustion burner. The gas burner comprises a circumferentially arranged outer ring structure, which comprises an inner ring wall and an outer ring wall, the outer ring structure forms an outer ring flow channel and a mixing cavity which are communicated with each other; an outer ring ejection pipe arranged below the outer ring flow channel, the outlet of the outer ring ejection pipe is communicated with the mixing cavity; and a shunt plate buckled in the outer ring structure, the shunt plate is provided with a first shunt area and a second shunt area, the first shunt area is arranged above the outer ring flow channel in correspondence, and the second shunt area is arranged above the mixing cavity in correspondence. The updraft combustion burner comprises the gas burner. The technical problem that the gas and air of the updraft combustion burner are not mixed sufficiently and the performance of the combustion burner is affected is solved.

The utility model discloses a biomass gas combustion system capable of accurately controlling combustion. The system comprises a biomass gas burner, a biomass gas pipeline connected with the burner, an air blower, an air supply pipeline connected with the air blower and the burner, a tar collecting device in a hearth of the biomass boiler, an oxygen sensor arranged on a smoke exhaust pipeline of the boiler, a controller based on a PLC (Programmable Logic Controller) system, and an air blower frequency converter. Gas component, flow, temperature and pressure measuring devices are arranged on the biomass gas pipeline, and flow and temperature measuring devices are arranged on the air supply pipeline. The controller calculates the oxygen amount needed by biomass gas combustion and the oxygen amount provided by the air blower according to data fed back by the measuring device, and controls the air blower frequency converter to adjust the air amount of the air blower under correction of data fed back by the oxygen sensor on the boiler smoke exhaust pipeline, so that combustion is accurately controlled under the condition of partial load of the boiler, and the combustion efficiency is improved. The combustion efficiency is improved, and the pollutant emission is reduced.

The invention discloses a multi-angle micro-pipe staged combustion rotational flow gas burner, and relates to the technical field of industrial burners and low-nitrogen combustion. According to the low-nitrogen combustor, the problem that the combustion stability and the nitrogen oxide emission control level are difficult to optimize at the same time due to the fact that an existing low-nitrogen combustor cannot achieve fuel uniform distribution on the microscale is solved. The device comprises an on-duty flame system, a main flame system, an air supply channel and a flue gas recirculation structure, the on-duty flame system realizes multi-angle uniform injection of fuel through a multi-angle fuel distribution device to form stable central on-duty flame; the main flame system realizes fuel grading through an inner and outer ring mixing pipe; the flue gas recirculation structure introduces backflow flue gas into the combustion area through the flaring of the mixing pipe and the entrainment opening of the arc-shaped air sleeve, the backflow flue gas is mixed with air or fuel gas, and the combustion temperature and the oxygen concentration are effectively reduced. Through the synergistic effect of staged combustion and flue gas recirculation, the effects of stable combustion, uniform flame and low NOx emission are achieved.

A cooktop appliance and a gas burner assembly are provided. The gas burner assembly is positioned at a top panel and includes an annular burner body positioned at a top surface of the top panel. The annular burner body forms a central combustion zone, a plurality of flame ports at the central combustion zone, and an annular mixing chamber upstream from the plurality of flame ports to permit a fuel-air mixture to flow into the central combustion zone through the plurality of flame ports. An annular burner base forms a bottom wall of the mixing chamber and an annular burner head forms a top wall of the mixing chamber. A puck including a domed projection separably positioned at the top surface of the top panel and extending toward the central combustion zone.

To significantly improve the combustion of a fuel gas containing at least 95% hydrogen by volume in a gas burner (10) for heating purposes, a burner body (16) for the gas burner (10) has been proposed, which, as a burner surface (38) for the passage of a premixed fuel gas-air mixture into a combustion chamber (14), has a perforated metal surface (40) which has through holes (48) such that less than 5% of the burner surface (38) is open. wherein the through holes (48) have hole diameters D with 0.4 mm ≤ D ≤ 1.0 mm, wherein the hole diameters D and / or hole lengths of the through holes vary.

The invention relates to a high-carbon-content mixed gas burner which comprises a connecting main pipe, a gas inlet pipe and a gas outlet pipe. The gas branch pipes are fixedly connected to the outer wall of the connecting main pipe in the circumferential direction, the interior of each gas branch pipe is communicated with the interior of the connecting main pipe, and a gas spraying hole is formed in the outlet end of each gas branch pipe; the steam supply assembly is arranged below the gas branch pipe and used for supplying steam to the combustor; each air distribution leading-in sleeve is correspondingly arranged outside the corresponding fuel gas spraying hole in a sleeving mode, and a mixing cavity is formed between each air distribution leading-in sleeve and the corresponding fuel gas spraying hole; according to the invention, the air distribution lead-in sleeve is arranged at the outlet of the multi-path gas branch pipe, the air distribution lead-in sleeve and the gas spray hole form the special mixing chamber, and the steam supply assembly is arranged below the special mixing chamber, so that steam and high-carbon gas are fully premixed before combustion by utilizing an injection effect, and the mixing uniformity and the reaction efficiency are remarkably improved.

The object of the present invention is a control method for verifying the presence of the flame in the combustion chamber (41) of a premixed gas burner (1), fed by an air and gas mixture mainly and / or essentially comprising hydrogen H2. The method is based on the use of at least one temperature sensor (6), the values whereof are sent to a control device (8) which uses them to calculate the derivative T′ over time of the temperature T to compare it to suitable feedback thresholds (Tau1, Tau2; Tau3, Tau4) to establish the ignition occurred, the ignition failure or flame extinguishment.

The present invention provides a gas burner device and a cooking appliance that can suppress the generation of yellow flames caused by a rapid increase in the burner's heat output. [Solution] When the control means 60 receives an instruction via the heat output instruction means 57 to increase the heat output of the burner 39 from the first heat output to the second heat output, the control means 60 pauses the opening of the gas quantity control valve 55, which adjusts the amount of fuel gas supplied to the burner 39, for a predetermined time or slows down the opening speed of the gas quantity control valve 55 while it is in the process of changing the opening degree of the gas quantity control valve 55 from the first heat output opening degree to obtain the first heat output to the second heat output opening degree to obtain the second heat output.

The utility model discloses a special gas burner for a low-temperature hearth, which belongs to the technical field of burner equipment and comprises a barrel, the barrel is fixed with a bottom plate of a heating furnace, a lower brazier brick is arranged in the barrel, a large round hole and a small round hole are arranged at the bottom of the barrel, the large round hole is connected with a fixed disc, an outer gas gun penetrates through the small round hole, and a central gas gun and an incandescent light are mounted on the fixed disc. The outer gas gun, the center gas gun and the main gas pipeline are communicated through a three-way component, the barrel is provided with an air adjusting butterfly valve for controlling combustion-supporting air, and a heat preservation layer is arranged in the barrel. According to the combustor, the concentration of NOx and CO is adjusted through combination of fuel gas classification, flue gas self-circulation and rich-lean combustion technologies, the problems of high CO emission and unstable combustion of a low-temperature hearth are solved, the combustion efficiency and stability are improved, and the combustor is suitable for heating the low-temperature hearth in the industries such as petroleum refining and the like, meets the requirements for environmental protection and energy conservation and has wide application prospects.

A household gas burner, particularly for cooking appliances, includes a burner housing having a burner chamber that can be coupled to an optional controlled gas fuel supply device and is openly connected to the environment through a series of flame ports for igniting a gas flame. An inlet device is coupled to the burner housing, the inlet device including an inlet for receiving gas fuel and ambient air, and an outlet for supplying a fuel / air mixture to the burner chamber. The inlet and outlet are openly connected to each other via a fuel passage extending between the inlet and outlet and defined by a wall. The gas port is characterized by opening into the inlet during operation to supply a fuel flow to the inlet, the inlet allowing at least substantially free entry of ambient air, and the inlet device including an auxiliary gas device for generating and maintaining an auxiliary gas flow during operation, the auxiliary gas flowing through the wall of the fuel passage toward the outlet.

The application discloses a kind of ammonia hydrogen mixed natural gas combustion boiler test platform and its working method, test platform includes natural gas storage tank, hydrogen storage tank, liquid ammonia storage tank and liquid ammonia heating system, natural gas storage tank is connected with the multiple-component gas burner installed on gas boiler, hydrogen storage tank is connected with the multiple-component gas burner installed on gas boiler and is equipped with hydrogen flow regulating valve on connecting pipeline, liquid ammonia storage tank is connected with ammonia water pump, and ammonia water pump outlet is connected with liquid ammonia heating system, liquid ammonia heating system can heat liquid ammonia into ammonia gas of preset temperature, and the outlet of liquid ammonia heating system is connected with multiple-component gas burner and is equipped with ammonia gas main flow regulating valve on connecting pipeline.The application can realize zero carbon emission, and the system structure is reasonable, with the characteristics that heat can be matched and utilized in stages, providing a kind of thought for the development of industrial boiler in future.

The present invention provides a gas burner device and a cooking appliance that can suppress the accumulation of soot on heated objects such as cooking containers due to the yellow flame generated in the sub-burner section immediately after the transition from a simultaneous combustion state to a single combustion state. [Solution] In a gas burner device 16 having a main burner section 36 and a sub-burner section 38, where the minimum heat output in a simultaneous combustion state when the main burner section 36 and the sub-burner section 38 burn simultaneously is greater than the maximum heat output in a single combustion state when only the sub-burner section 38 burns, but the minimum simultaneous combustion heat output opening of the gas volume control valve 55 is set to be smaller than the maximum single combustion heat output opening, the control means 60 closes the on / off valve 56 when the opening of the gas volume control valve 55 is smaller than the maximum single combustion heat output opening and is greater than or equal to the minimum simultaneous combustion heat output opening, thereby switching the combustion state of the burner 39 from a simultaneous combustion state to a single combustion state.

The utility model discloses a gas furnace ignition device, which relates to the technical field of gas furnaces and comprises a base and a gas furnace. The gas furnace is mounted at the top of the base; a limiting groove is formed in the base, an electromagnet is fixedly connected to one side of the limiting groove, an iron block is arranged on the other side of the limiting groove, a sliding block is slidably connected into the limiting groove, a sliding groove is formed in the side, close to the iron block, of the sliding block, and a first shear fork frame is rotationally connected to the sides, close to the sliding block, of the electromagnet and the iron block. The other end of the first shear fork frame is rotationally connected with a second shear fork frame, the side, away from one end of the first shear fork frame, of the second shear fork frame is rotationally connected with a sliding block, the other side, away from one end of the first shear fork frame, of the second shear fork frame is movably connected into a sliding groove, and an igniter is arranged on the upper middle portion of the sliding block; and through mutual magnetic attraction between the electromagnet and the iron block, the igniter is driven to move, so that the igniter is close to the gas furnace for ignition.

The utility model discloses a gas furnace end and a pizza furnace. The furnace end comprises a furnace end body, the furnace end body is provided with an air inlet section, fire holes are formed in the furnace end body from the air inlet section to the tail end of the furnace end body, a furnace cavity communicated with the fire holes is formed in the furnace end body, and the length of the fire holes in the air inlet section is larger than that of the fire holes in other areas. By increasing the length of the fire holes in the gas inlet section, when gas directly rushes into the fire holes in the position, the gas outlet pressure of the corresponding fire holes is relatively stable due to the influence of longer channels of the fire holes, and the gas inlet section of the gas furnace end is prevented from flame separation.

The present invention makes it possible to reduce ignition noise in a heating cooker comprising a gas burner as a heat source, wherein a gas cock 62, which has a safety valve 622 and a plug 621 that rotates to a fully open position due to an ignition operation, is interposed in a gas supply passage 61 to the gas burner.　A solenoid valve 64 is interposed in the gas supply passage 61 in series with the gas cock 62, and an orifice 65 is interposed in the same in parallel with the solenoid valve 64. At the time of an ignition operation, an ignition means that is attached to the gas burner is operated with the solenoid valve 64 in a closed condition.

The utility model provides a gas cooking machine which comprises a panel, a base plate, a burner and a pot body, the base plate is located below the panel and connected to the panel, a containing cavity is formed between the base plate and the panel, the burner is arranged in the containing cavity, the panel is provided with a placing opening, the pot body penetrates through the placing opening and extends into the containing cavity, and the pot body is arranged in the containing cavity. The burner is arranged below the pot body and used for heating the pot body. According to the gas cooking machine, the gas burner is used for replacing an electric appliance heater, and the large-load and high-efficiency cooking effect is achieved. Besides, the panel and the base plate are connected to form the containing cavity, and the combustor and the pot body are both placed in the containing cavity, so that a combustion system and a cooking system of the gas cooking machine are both embedded below the panel. Therefore, by adopting the arrangement scheme, the space of the table top of the cabinet can be saved, the cooking machine is more convenient to clean, and heat radiation in the cooking process can be reduced due to the fact that the burner is placed in the containing cavity.

The utility model discloses a mounting structure of a burner ceramic tube in a gas burner, which is characterized in that a mounting flange is fixed in a burner shell, and an annular groove is arranged on the mounting flange; a burner ceramic tube penetrates through the inner side of the mounting flange; a high-temperature-resistant sealing ring is sleeved on the burner ceramic tube and can be embedded in the annular groove; a flange edge is arranged at the bottom of the burner ceramic tube, and one end of the flange edge is embedded in the annular groove and abuts against the high-temperature-resistant sealing ring. The hold-down ring is elastically connected with the mounting flange; and the hold-down ring is used for tightly pressing the burner ceramic tube on the mounting flange. The flange edge on the burner ceramic tube can be embedded in the annular groove and abut against the high-temperature-resistant sealing ring, the pressing ring is elastically connected with the mounting flange, and the pressing ring abuts against the flange edge, so that the burner ceramic tube is pressed; the connection sealing performance of the burner ceramic tube is ensured, and meanwhile, the burner ceramic tube cannot be damaged due to excessive extrusion during installation; when the burner ceramic tube is subjected to thermal deformation, the thermal deformation of the burner ceramic tube can be compensated.

The present invention relates to a gas-fired pizza oven (100, 300) comprising an oven cavity (120) having a pick-up port for receiving food into the oven cavity (120) for cooking and for removing cooked food, the pick-up port being located at a front end of the gas-fired pizza oven, and at least one elongated gas burner (128a, 128b, 228, 328a, 328b, 428, 528).

The utility model discloses a gas burner heat exchanger which comprises a heat exchange tube, a sealing cap, heat exchange fins and a flange plate, the heat exchange tube is fixed with a burner shell through the flange plate, the sealing cap is provided with an air conduit outlet and a plurality of air outlet holes, one end of an air conduit extends out of the air conduit outlet, a flue gas flowing channel is formed between a flue gas conduit and the heat exchange tube, and the flue gas flowing channel is communicated with the heat exchange tube. An air flowing channel is formed between the heat exchange pipe and the air guide pipe, an air inlet hole is formed in the side wall of the air guide pipe, and the combustion-supporting air inlet, the air outlet hole and the air inlet hole are all communicated with the air flowing channel. Heat exchange fins are fixed to the inner side wall and the outer side wall of the heat exchange pipe. The high-temperature flue gas and the combustion-supporting air can realize heat exchange, so that the combustion efficiency of the fuel gas is improved; and the air outlet holes can distribute the combustion-supporting air in the air flowing channel, so that secondary combustion of the fuel gas can be realized, the combustion is sufficient, and the generation of nitrogen oxides during combustion can be inhibited.

1. The name of the design product: gas valve. 2. The use of the design product: for gas stove, control gas burner. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The present application provides a safety switch for a gas burner, which is used for being installed on a gas burner with a rear opening, and the rear opening is adjacent to a button; the safety switch comprises a locking member and a swing arm which is adjacent to the locking member and is pivoted to an inner wall of the gas burner, the locking member has a body which is sleeved with a longitudinal spring, and a locking hook protrudes from the body towards a hook position above the swing arm, wherein an extension piece below the swing arm is provided with a transverse spring between the extension piece and the inner wall of the gas burner; when the locking member is not pressed, the locking hook is abutted to the hook, and a locking bolt protruding from the bottom of the button is abutted to the locking hook, so that the button forms a locked state which cannot be pressed.

Boosted output gas burners for gas-fueled outdoor cooking appliances are disclosed. An example gas burner includes a housing and a tube. The housing includes a bottom wall, a front wall, a rear wall, a right sidewall, a left sidewall, and a top wall. The front wall includes an opening. The top wall includes first ports arranged in a first row and second ports arranged in a second row spaced apart from the first row. The tube is located at least partially within the housing. The tube extends through the opening of the front wall. The tube includes an inlet portion, a venturi portion located downstream from the inlet portion, and a mixing portion located downstream from the venturi portion. The inlet portion includes an open front end located externally from the housing. The mixing portion includes an open rear end located within the housing forward of the rear wall.

A gas burner assembly for a cooking appliance has a burner head (28) with a perforated wall (34) having a plurality of holes (44) and a heat exchanger (36) with an outer wall (58) surrounding the perforated wall (34) on the outside, as well as a flow device configured to direct an airflow (56) along a flow path (W) over the heat exchanger (36) in an operating mode of the gas burner assembly, so that the heat exchanger (36) heats the air flowing over the outer wall (58). The sum of the opening cross-sectional areas of the holes (44) in a first circumferential section (71) is proportional to the heat transfer coefficient (α1) in this first local circumferential section, and the sum of the opening cross-sectional areas of the holes (44) in a second circumferential section (72) is proportional to the heat transfer coefficient (α2) in this second local circumferential section. Furthermore, a cooking appliance with such a gas burner assembly is provided.

The present application relates to hydrogen gas burner technical field, one embodiment of the present application provides a kind of hydrogen gas burner, including burner body, the surface of the burner body is fixedly penetrated with ignition tube, the inside of the burner body is fixedly installed with mixing cylinder, the inner wall bottom of the burner body is fixedly installed with motor, the surface of the burner body is provided with for mixing hydrogen and oxygen mixing device, the mixing device includes hydrogen pipe, the hydrogen pipe is fixedly penetrated the surface of burner body, the surface of the burner body is fixedly penetrated with combustion gas pipe, the output end of the motor is fixedly installed with gas stirring ring.The above technical scheme, solve the technical problem that the gas in prior art may be not uniform because of the mixing between gas before burning, in turn affect the efficiency of equipment combustion and fuel utilization rate.

The application discloses a honeycomb matrix plate type ultra-low nitrogen gas burner, which comprises a burner head, a gas pipeline connected with the burner head and an air channel connected with the burner head; the burner head comprises a gas bin and an air bin, one end of the air bin is connected with the air channel, one end of the gas bin is connected with the gas pipeline, and a distribution cover is arranged on the burning end of the burner head and connected with the gas bin and the air bin; a combustion nozzle and an ignition port are arranged on the distribution cover, the combustion nozzle is distributed in a honeycomb shape on the distribution cover, and the ignition port is at least provided with two and is staggered with the combustion nozzle; the honeycomb matrix plate type ultra-low nitrogen gas burner can realize multi-point combustion, multi-point cross ignition and low nitrogen emission.

A domestic gas burner comprising a housing with a chamber, which can be coupled to an optionally controlled feed for a gaseous fuel and is in open communication with the environment via flame ports for the purpose of igniting a gas flame. An inlet device is coupled to the housing and comprises an entrance for receiving gaseous fuel, ambient air, and an outlet for feeding a fuel / air mixture to the burner chamber. The entrance and the outlet are in open communication with each other via a fuel channel which extends therebetween and is bounded by a wall. A gas port debouches into the entrance during operation to feed a fuel flow. The entrance allows substantially free entry of ambient air, and the inlet device comprises auxiliary gas means for generating and maintaining a flow of an auxiliary gas, directed toward the outlet, over the wall of the fuel channel.

The invention discloses an oxygen-assisted gas furnace end, and relates to the technical field of kitchen equipment. The furnace end comprises a fire cover, a gas guide cone, a gas mixing disc, a layering pipe, an oxygen generation device and an induction probe. The gas mixing disc is provided with a separation layer consisting of a plurality of layers of concentric disc belts and is used for fully mixing fuel gas and oxygen; the layering pipe is of a local double-layer structure and is used for conveying fuel gas and oxygen respectively; the oxygen generating device can be independently inserted and connected and is driven by a built-in battery to mix trace oxygen into the fuel gas; the gas guide cones are arranged in a layered manner corresponding to the gas mixing disc, so that the mixed gas is uniformly diffused; the fire cover is provided with a plurality of circles of cover holes so as to achieve uniform fire outlet. Through an active oxygen assisting and layered mixing structure, the combustion efficiency and uniformity are remarkably improved, and the advantages of energy conservation, environmental protection and firepower adjustability are achieved.

The utility model relates to an ignition, stable combustion and deep peak regulation technology of a coal-fired boiler, in particular to an ignition, stable combustion and deep peak regulation device for the coal-fired boiler through carbon-based fuel gasification synthesis gas. The device comprises a gasification furnace body, high-temperature synthesis gas dust removal equipment, an emergency emptying stop valve, a branch pipeline stop valve, a boiler synthesis gas burner and a power plant coal-fired boiler, the gasification furnace body is connected with the high-temperature synthesis gas dust removal equipment, the emergency emptying stop valve is arranged at the upper end of the high-temperature synthesis gas dust removal equipment, and the high-temperature synthesis gas dust removal equipment is connected with a boiler synthesis gas burner on a coal-fired boiler of a power plant through the branch pipeline stop valve. Synthesis gas generated by gasification of carbon-based fuel enters the boiler to be combusted for ignition, stable combustion and deep peak regulation of the coal-fired boiler, and the coal-fired boiler has the advantages of being high in reliability and good in operation economical efficiency.