64results about How to "Good flame stabilization effect" patented technology

The invention discloses an afterburner integrated with a stabilizer and a worm wheel rear rectification support plate. A combustion part in the afterburner is integrated with a worm wheel rear load-bearing framework; the worm wheel rear rectification support plate is integrated with an inner culvert flame stabilizer, and cooling air is fed; a fuel oil supply pipe and a fuel oil nozzle are arranged in the rectification support plate; main fuel oil is transversely sprayed out from two sides of the support plate; and duty fuel oil is sprayed out from a groove on the rear surface of the stabilizer to form a duty flame. A pneumatic appearance of an outer culvert flame stabilizer is designed as a V-shaped bluff body, and the cooling air is fed into the outer culvert flame stabilizer; a fuel oil pipeline is arranged in the outer culvert flame stabilizer; the main fuel oil is transversely sprayed by a baffle plate nozzle; and the duty fuel oil is sprayed out from a groove on the rear surface of the outer culvert flame stabilizer. An annular flame stabilizer is arranged between the inner culvert flame stabilizer and the outer culvert flame stabilizer, so that functions of the stabilizer and a flame coupler are realized in a circumferential direction. The internal parts of the afterburner are integrated, so that the part utilization efficiency is improved, and the engine thrust-weight ratio is increased.

The invention relates to a combustor used for a gas stove. The combustor comprises a pedestal as well as an inner ring fire cover and an outer ring fire cover which are connected on the pedestal, wherein the inner wall of the top surface of the inner ring fire cover and the ring-shaped peripheral wall of the inner ring fire cover form a central gas-mixing chamber; a plurality of inner ring fire holes which communicate with an outside central gas-mixing chamber are formed in the ring-shaped peripheral wall of the inner ring fire cover; the inner wall of the top surface of the outer ring fire cover and the ring-shaped peripheral wall of the outer ring fire cover form an outer ring gas-mixing chamber; a plurality of main fire holes are formed in the ring-shaped peripheral wall of the outer ring fire cover; and a central fuel gas channel which communicates with the central gas mixing chamber and an outer ring fuel gas channel which communicates with the outer ring gas-mixing chamber are arranged on the pedestal. The combustor is characterized in that a vertical ring-shaped partition is further arranged on the pedestal for partitioning the outer ring gas-mixing chamber into a gas mixing cavity at the inner side and a buffer cavity at the outer side; a gap for enabling the gas-mixing chamber to communicate with the buffer cavity is formed between the upper end edge of the baffle plate and the inner surface of the outer ring fire cover; and the outer ring fuel gas channel communicates with the gas mixing cavity.

The invention relates to a ramjet combustion chamber, and provides a ramjet combustion chamber stabilizer and a flame stabilization method. The problems that existing mechanical flame stabilizers havelarge pneumatic loss and narrow flame stabilization range, and consequently the working reliability is low, and the requirement of efficient flame stabilization under the high Mach number cannot be met are solved. The ramjet combustion chamber stabilizer includes a sweepback arc-shaped supporting plate, the sweepback arc-shaped supporting plate includes a bottom face, two end faces and two side profiles, the cross section of the sweepback arc-shaped supporting plate is triangle-like, the front parts of the two side profiles are connected, and the two side profiles are concaved to form an arcside profile.

The invention discloses a turbine stator blade with an interstage combustor, and relates to turbine stator blades of aero-engines or gas turbines. The turbine stator blade comprises an inner ring, an outer ring and multiple guide blades, wherein the guide blades are provided with a guide blade main body and a guide blade cover; the guide blade cover is arranged on the upper end of the guide blade main body, and the guide blade main body is provided with a front oil injection cavity, a middle backflow cavity and a rear cooling cavity; another cooling cavity is formed at the rear of the guide blade cover, and the oil injection cavity is internally provided with a spraying rod slot; the cooling cavity of the guide blade main body and the cooling cavity of the guide blade cover respectively have cooling holes; the turbine stator blade is also provided with ignition devices and multiple spraying rod devices, and the ignition devices are provided with ignition bases and ignition electric nozzles; the spraying rod devices are arranged on the guide blades, the outer ends of the spraying rod devices pass through and are exposed of the outer ring, and the inner ends of the spraying rod devices stretch into oil injection cavities of the guide blades; and the spraying rod devices are provided with oil pipes, gas pipes and nozzles, oil spraying ports and multiple gas spraying ports are formed in the nozzles, and the oil pipes and the air pipes are respectively connected with an oil supplying pipe and a gas supplying pipe.

The invention relates to the technical field of engines, and discloses a mixing flame stabilizing device. The mixing flame stabilizing device comprises a lobe mixer, a cover plate and turbulent flow columns, wherein a gas collecting cavity is formed between the cover plate and the lobe mixer; the turbulent flow columns are arranged at the position of an outer culvert air flow outlet of the lobe mixer; inner cavities of the turbulent flow columns communicate with the gas collecting cavity; the side walls of the turbulent flow columns and the cover plate are provided with spraying holes a and spraying holes b correspondingly; combustible gas is subjected to secondary flow dividing through the spraying holes a and the spraying holes b and then enters a combustion chamber to be mixed with air,the spraying pressure of the combustible gas is increased, accordingly, the penetrating capacity of the combustible gas in the gaseous environment is improved, and accordingly efficient mixing of twoair flows is achieved; and the turbulent flow columns are arranged at the position of the outer culvert air flow outlet of the lobe mixer, a large-scale radial vortex can be formed on the downstreamportion of the turbulent flow columns, outer culvert air is forced to flow in the circumferential direction of the turbulent flow columns at an outlet of the mixer, the mixing distance of the outer culvert air and inner culvert combustible gas is shortened, the mass exchange rate of the air and the combustible gas at an inner culvert outlet of the mixer is increased, and the mixing effect is improved.

The invention relates to a fire cover, and further relates to a combustor. The fire cover comprises a top cover and an annular wall extending downwards in the circumferential direction of the top cover. Fire holes are formed in the annular wall. A main ignition hole is formed in a position, corresponding to an ignition needle, in the annular wall. The aperture of the radial inner end of the main ignition hole is smaller than the aperture of the radial outer end of the main ignition hole. According to the fire cover, a better flame stabilizing effect can be played when ignition is conducted, and the success rate of ignition is greatly improved. The combustor comprises a base, an ejection guiding pipe, an ignition needle and a thermocouple. The base is provided with an outer ring gas mixingchamber and an inner ring gas mixing chamber which communicate with the ejection guiding pipe. An outer ring fire cover is arranged on the outer ring gas mixing chamber in a matched mode. The ignitionneedle and the thermocouple are close to the inner ring gas mixing chamber and are arranged on the periphery of the inner ring gas mixing chamber. An inner ring fire cover is arranged on the inner ring gas mixing chamber in a matched mode. The fire cover is adopted as the inner ring fire cover. The combustor is higher in ignition success rate, working reliability and stability, and the service life is effectively prolonged.

The invention relates to a fire cover for a gas stove. The fire cover is characterized by comprising an annular upper cover body, an annular separating sheet and an annular lower cover body from top to bottom. An inner ring and an outer ring of the upper cover body are provided with a downwards-extending inner ring wall and a downwards-extending outer ring wall correspondingly, wherein the lower circumferential face of the outer ring wall is in an outside-high-inside-low conical surface shape, the outer ring wall is provided with a plurality of upper grooves which are arranged in the circumferential direction and are through in the radial direction, the upper circumferential face of the separating sheet is matched with the lower circumferential face of the outer ring wall of the upper cover body, and an upper fire hole is formed through the separating sheet and the upper groove; the upper circumferential face of the lower cover body is also an outside-high-inside-low conical surface, the lower cover body is provided with a plurality of lower grooves which are arranged in the circumferential direction and are through in the radial direction, the lower circumferential face of the separating sheet is matched with the upper circumferential face of the lower cover body, and a lower fire hole is formed by the separating sheet and the lower grooves; and a gas mixing chamber is jointly defined by the inner ring wall of the upper cover body, the outer ring wall of the upper cover body, an inner circumferential wall of the separating sheet and an inner circumferential wall of the lower cover body.

The invention discloses a hydrogen injection system of a gas turbine. The system comprises two hydrogen storage tanks. The hydrogen storage tanks are connected with hydrogen injectors, and hydrogen isdirectly injected into a combustion chamber according to the set flow. The two hydrogen injectors include the first hydrogen injector with a nozzle located on the lower part of the side wall of the combustion chamber, and a second hydrogen injector with a nozzle located at the bottom of the combustion chamber. The invention further provides a flame stabilizing method by using the hydrogen injection system of the gas turbine. The method comprises the steps that air and fuel are metered independently, mixed and fed into the combustion chamber, then hydrogen is metered, the hydrogen is directlyinjected into the combustion chamber from the bottom or the side face, and ignition is carried out for combustion. According to the hydrogen injection system of gas turbine and the flame stabilizing method, natural gas and hydrogen are used as fuels, and the directly injected hydrogen accounts for 1% to 5% the total amount of the fuels; by injecting a small amount of hydrogen, the lean burn limitof combustion is further expanded while flame is stabilized, the ignition performance and the combustion efficiency of the fuels are improved, the risks of tempering, self-ignition and thermo-acousticoscillation in the combustion process are reduced, and emission of pollutants such as nitric oxide is limited.

The invention discloses a kitchen range fire cover. The surface of the kitchen range fire cover is provided with a flame groove which communicates with a flue gas cavity, the kitchen range fire coveris further provided with an ignition hole and a groove, the groove corresponds to the ignition hole, an opening, on the side wall of the kitchen range fire cover, of the ignition hole is located in the flame groove, the groove makes contact with one side of the opening of the ignition hole, the hole side wall of the ignition hole is cut through, and therefore an opening space is formed on one sideof the ignition hole. According to the kitchen range fire cover, since the ignition hole is formed in the flame groove which communicates with the fuel gas cavity, and the groove is formed in one side of the ignition hole, the opening side of the ignition hole for the outside world is improved, the fuel gas amount of the ignition hole at the opening position is increased, and smooth ignition of akitchen range is ensured. In addition, the diameter of the ignition hole does not need to be increased by means of the structure, the low flow speed of flue gas can be kept at the opening position ofthe ignition hole, the flame leaving condition is avoided, flame stability during ignition is ensured, and the flame stabilizing effect is improved.

The invention discloses a gas furnace head. The gas furnace head comprises a furnace base, a center gas supply cavity and an external gas supply cavity, wherein the center gas supply cavity and the external gas supply cavity are separated from each other on the furnace base. The center gas supply cavity communicates with a first gas inlet pipe, and the external gas supply cavity communicates with a second gas inlet pipe. A first installation base is arranged at the open end of the center gas supply cavity, and a copper ring and the first installation base are connected in a matched manner through a rotation stopping mechanism. The gas furnace head further comprises a disk-shaped flame stabilizing cover, round protrusions are arranged on the middle portion of the inner side of the flame stabilizing cover, the round protrusions are embedded into a cavity of the copper ring, and positioning is realized through lugs protruding inwards on the side wall of the cavity of the copper ring. First protrusions are arranged on the upper end face of the copper ring, a groove is formed between the adjacent first protrusions, second protrusions are arranged on the upper surfaces of the ends, close to the cavity of the copper ring, of the first protrusions, the inner side of the flame stabilizing cover is attached to the upper surface of the second protrusion, and a flame stabilizing groove is formed by a gap between the flame stabilizing cover and the outer side wall of the copper ring. Compared with a traditional gas furnace head, the gas furnace head has the beneficial effects that the structure is simple, the cost is saved, and the burning and flame stabilizing effects are good.

The invention relates to a burner ring. The burner ring comprises an annular burner ring body, wherein the burner ring body comprises a top wall, an inner ring wall and an outer ring wall, fire outletholes and flame stabilizing holes are formed in the outer ring wall in the circumferential direction, the hole channels of the flame stabilizing holes extend upwards from inside to outside along theouter ring wall, the fire outlet holes are formed below the flame stabilizing holes, the peripheral wall of the upper end of the burner ring body extends outwards in the circumferential direction to form an annular flame stabilizing blocking edge, the flame stabilizing blocking edge can shield the flame stabilizing holes from the horizontal direction, the main flame in a main fire hole is lower than the flame stabilizing edge and can be burned outwards at least along the lowest position of the flame stabilizing edge, and a flame stabilizing groove is formed between the flame stabilizing edge and the outer ring wall. According to the burner ring, the flame stabilizing edge can prevent overflow liquid from flowing into the flame stabilizing holes, the airflow speed in the flame stabilizing holes is reduced, the flame is more stable, so that the flame stabilizing effect is better, the main flame in the main fire hole can heat the overflow liquid which flows to the flame stabilizing edge along the top wall, so that the liquid can be prevented from entering the main fire hole, and self-cleaning of the overflow liquid can be realized.

The invention discloses an outer burner cap for a fuel gas type burner. The outer burner cap comprises an outer burner cap body with inner holes, wherein the lower side of the outer burner cap body is provided with a gas mixing chamber; the inner wall of the outer burner cap body is provided with a plurality of laminated steps in a gradually reduced arrangement from outside to inside; the laminated steps are used for partitioning the inner wall of the outer burner cap body into a plurality of side walls; an annular groove is formed in each side wall; the lower side of the outer burner cap body is provided with a plurality of fuel gas through hole units in one-to-one correspondence to the annular grooves respectively; each fuel gas through hole unit comprises a plurality of annularly arranged fuel gas through holes; one ends of the fuel gas through holes of any fuel gas through hole unit are respectively communicated with the gas mixing chamber, and the other ends of the fuel gas through holes of any fuel gas through hole unit are respectively communicated with the inner sides of the corresponding annular grooves. The outer burner cap has the advantages that the outer burner cap is free of flame lifting and flame floating during burning, good in flame-stabilizing effect and good in heat gathering effect, and an energy-gathering flame inside a floating flame is used for central heating.

A stove burner comprises a furnace head, an outer-ring gas ejector pipe, an inner-ring gas ejector pipe and a burner cap, wherein the furnace head comprises an outer-ring cavity and an inner-ring cavity; the outer-ring gas ejector pipe communicates with the outer-ring cavity; the inner-ring gas ejector pipe communicates with the inner-ring cavity; and the burner cap is mounted on the furnace head. The stove burner is characterized in that the burner cap comprises a lower-ring flame channel communicating with the outer-ring cavity; a cover plate is arranged on the burner cap; an upper-ring flame channel communicating with the inner-ring cavity is formed between the cover plate and the burner cap; and in addition, the lower-ring flame channel is positioned below the upper-ring flame channel. After the stove burner provided by the invention adopts the upper-ring and lower-ring flame design, the flame stabilizing effect can be well achieved by adjusting the primary air coefficient of lower-ring flame, and secondary air can be directly supplemented; not only is the supplementing effect good, but also the problem that an overflowing liquid flows into a baseplate through a secondary air hole, and then the secondary air hole is difficult to clean can be solved; and in addition, the diameter of the stove burner is relatively small, so that is not only the heat efficiency improved, but also the stove burner is easier to clean.

The invention relates to a burner ring for a gas stove. The burner ring comprises a burner ring body, wherein a gas mixing cavity is formed by an annular top wall of the burner ring body, an inner annular wall and an outer annular wall, the inner annular wall and the outer annular wall vertically or obliquely extend downward from the inner side edge and the outer side edge of the annular top wallrespectively, the upper surface of the burner ring body is provided with a fire spreading chamber, a fire guiding groove is formed in the top wall of the fire spreading chamber, and the burner ring ischaracterized in that the two opposite inner sidewalls in a top opening of the fire guiding groove are provided with at least one pair of opposite through holes communicating with the gas mixing cavity, and center lines of each pair through holes are intersected. Compared with the prior art, the burner ring has the advantages that the through holes communicating with the gas mixing cavity are arranged in the fire guiding groove, the center lines of each pair through holes are intersected, gas flowing out of each pair of through holes impacts mutually, so that the mixing uniformity of the gasand air in the fire guiding groove is improved, meanwhile, the flow speed is reduced, and the flame stabilizing performance is improved.

The invention relates to a burner for a gas stove. The burner comprises an outer ring gas mixing chamber, wherein the outer ring gas mixing chamber comprises an inner ring wall surface, an outer ringwall surface and a bottom wall; the inner ring wall surface and the outer ring wall surface are annular and arranged concentrically at an interval; the bottom wall is connected with the inner ring wall surface and the outer ring wall surface; an outer ring fire cover covers the upper parts of the inner ring wall surface and the outer ring wall surface; the outer ring fire cover comprises an annular body; the inner side edge of an annular top surface of the body extends downward to form an inner annular wall abutting against the inner ring wall surface; and the outer side edge of the annular top surface of the body extends downward to form an outer annular wall abutting against the outer ring wall surface. The burner for the gas stove is characterized in that the outer annular wall and theouter ring wall surface form a flame stabilizing channel communicating with the outer ring gas mixing chamber, and the cross section of the flame stabilizing channel is V-shaped; and compared with theprior art, the burner for the gas stove has the advantages that on one hand, the V-shaped flame stabilizing channel can play a flame stabilizing role, and on the other hand, it is easy for overflow liquid to remain at the middle tip part of the flame stabilizing channel after entering the flame stabilizing channel, so that the blockage of an air inlet communicating with the outer ring gas mixingchamber in the flame stabilizing channel is avoided.

The invention discloses a touch sensitive type stove convenient to wash and high in burning efficiency. The touch sensitive type stove comprises a bottom shell, a panel, furnace ends, electromagneticvalves, double-layer liquid containing discs, distributors, pot supports I, energy gathering rings, a touch display assembly and a controller. The double-layer liquid containing discs, the distributors, the pot supports I and the energy gathering rings are all coaxially arranged at the upper ends of furnace end holes I. According to the stove, work of the stove is controlled through touch keys, auser only needs to touch the keys by finger, no physical damage or mechanical abrasion is generated, and the requirements of the majority of users, especially young users can be met. By means of the double-layer liquid containing discs, the situation that soup, oil dirt and other liquid flow into internal space of the stove, so that normal use of the stove is affected is avoided; the distributorsare convenient to mount and dismount, secondary air needed by burning can be better supplemented, burning is more sufficient, exhausted carbon monoxide is less, and higher energy saving and environmental protection are achieved; and the energy gathering rings are convenient to mount and dismount, heat losses generated after gas burning can be effectively reduced, and the heat response utilizationrate is increased.

The invention relates to a fire cover for a gas stove. The fire cover comprises an annular body, a gas mixing cavity, at least two main fire holes formed in the outer ring wall in the circumferentialdirection at intervals, at least two flame stabilizing holes located below the main fire holes and arranged in the circumferential direction at intervals, and a first separating part capable of dividing the gas mixing cavity into a first gas mixing cavity and a second gas mixing cavity. The first gas mixing cavity communicates with the flame stabilizing holes, and the second gas mixing cavity communicates with the main fire holes. Compared with the prior art, the fire cover has the advantages that the gas mixing cavity is divided into two parts through the first separating part arranged in thegas mixing cavity, the speed of mixed gas flow in the gas mixing cavity is reduced, and double insurance is added for flame stabilization of the main fire holes, the flame stabilizing holes below themain fire holes are used for pulling the root for stabilizing flame, meanwhile, the independent first gas mixing cavity is added for stabilizing the flame stabilizing holes, the flame stabilizing effect is good, and same fire power of the main fire holes and the flame stabilizing holes of the fire cover can be realized.

The invention discloses a turbine stator blade with an interstage combustor, and relates to turbine stator blades of aero-engines or gas turbines. The turbine stator blade comprises an inner ring, an outer ring and multiple guide blades, wherein the guide blades are provided with a guide blade main body and a guide blade cover; the guide blade cover is arranged on the upper end of the guide blade main body, and the guide blade main body is provided with a front oil injection cavity, a middle backflow cavity and a rear cooling cavity; another cooling cavity is formed at the rear of the guide blade cover, and the oil injection cavity is internally provided with a spraying rod slot; the cooling cavity of the guide blade main body and the cooling cavity of the guide blade cover respectively have cooling holes; the turbine stator blade is also provided with ignition devices and multiple spraying rod devices, and the ignition devices are provided with ignition bases and ignition electric nozzles; the spraying rod devices are arranged on the guide blades, the outer ends of the spraying rod devices pass through and are exposed of the outer ring, and the inner ends of the spraying rod devices stretch into oil injection cavities of the guide blades; and the spraying rod devices are provided with oil pipes, gas pipes and nozzles, oil spraying ports and multiple gas spraying ports are formed in the nozzles, and the oil pipes and the air pipes are respectively connected with an oil supplying pipe and a gas supplying pipe.

The invention discloses a cooker convenient to clean, easy to adjust and with an energy gathering ring. The cooker comprises a bottom shell, a panel, a burner, a valve body, a double-layer liquid holding disc, a fire distributor, a pan support I, the energy gathering ring and a knob. The double-layer liquid holding disc, the fire distributor, the pan support I and the energy gathering ring are allcoaxially arranged at the upper end of a burner hole I. The fire distributor is installed at a gas outlet of the burner and comprises an outer ring fire distributor and an inner ring fire distributor. The outer ring fire distributor is provided with an inner side burning hole and an outer side burning hole. Work of the cooker is controlled by the traditional mechanical knob, needs of many consumers can be met, and operation and cleaning are more convenient through the mechanical knob especially for middle and old age consumers often using mechanical knobs. Through the double-layer liquid holding disc, soup, oil dirt and other liquids are prevented from flowing into the inner space of the cooker and from influencing normal use of the cooker. The energy gathering ring is convenient to install and detach, heat loss generated after gas burning can be reduced effectively, and the heat utilization rate is increased.

The invention relates to a burner cap used for a gas stove. The burner cap comprises a burner cap body. The burner cap body comprises a gas mixing cavity. A fire transfer chamber is arranged on the upper surface of the burner cap body. A fire leading groove is formed in the top wall of the fire transfer chamber. The burner cap is characterized in that in the two opposite inner side walls of a topopening of the fire leading groove, protruding ribs protruding towards the other side wall and extending in the radial direction are arranged on at least one side wall; and at least one through hole which communicates with the gas mixing cavity and comprises an opening facing the protruding ribs is formed in the other part, except the top opening, of the fire leading groove. Compared with the prior art, the burner cap has the advantages that the at least one through hole communicating with the gas mixing cavity is formed in the other part, except the top opening communicating with the outsideworld, in the fire leading groove, the center line of each through hole intersects with the corresponding protruding edge, and therefore fuel gas flowing out from each through hole can oppositely flush the corresponding protruding edge, and therefore the mixing uniformity of the fuel gas in the fire leading groove and air is improved.

The invention relates to a fire cover for a gas stove. The fire cover includes a ring-shaped body and a gas mixing chamber, and is arranged on the outer ring wall and arranged at least two main fire holes at intervals along the circumferential direction. Below the hole, there are at least two flame-stabilizing holes arranged at intervals in the circumferential direction, and a first flow divider, which can divide the gas mixing chamber into a first gas mixing chamber and a second gas mixing chamber. The first gas mixing chamber It communicates with the flame stabilizing hole, and the second gas mixing chamber communicates with the main flame hole. Compared with the prior art, the advantage of the present invention is that the gas mixing chamber is connected to a corresponding one by the first flow divider arranged in the gas mixing chamber It is divided into two parts, so that the velocity of the mixed gas flow in the mixed gas chamber is low, and at the same time, double insurance is added to the flame stabilization of the main flame hole. One is to use the flame stabilization hole located below the main flame hole to pull its root to stabilize the flame In addition, an independent first air mixing chamber is added to stabilize the flame at the flame-stabilizing hole itself, and the flame-stabilizing effect is good, and the firepower of the main flame hole and the flame-stabilizing hole of the fire cover can also be realized to be the same size and the same size.

The invention discloses a wireless control stove convenient to clean and high in combustion efficiency. A bottom shell, a panel, burners, electromagnetic valves, double-layer liquid containing discs,distributors, pot supports I, energy gathering rings, a key assembly, a controller and an intelligent terminal are included. The double-layer liquid containing discs, the distributors, the pot supports I and the energy gathering rings are coaxially arranged at the upper ends of burner holes I. According to the stove, a user can control the stove in a kitchen and can also remotely control the stove, and the danger possibly happening when the user forgets to turn off the fire and goes out is effectively avoided. Through the double-layer liquid containing discs, the situation that soap, oil dirtand other liquid flow into the inner space of the stove, and normal usage of the stove is influenced is avoided. The distributors are convenient to mount and dismount, secondary air needed for combustion can be better supplemented, combustion is more sufficient, less carbon monoxide is emitted, and more energy saving and environment friendliness are achieved. The energy gathering rings are convenient to mount and dismount, losses of heat generated after gas combustion can be effectively reduced, and the heat effect utilization rate is increased.

The invention relates to a flame stabilizing fire cover. A cylindrical fire cover body is included; a gas mixing cavity is formed in an inner cavity of the fire cover body, and the peripheral wall ofthe gas mixing cavity is provided with main fire holes and flame stabilizing holes; the main fire holes and the flame stabilizing holes communicate with the gas mixing cavity; the flame stabilizing holes and the main fire holes are formed at intervals and the flame stabilizing holes are located below the main fire holes; and the bottom walls of the outer side ends of hole channels of the flame stabilizing holes are notched and suspended so that flame stabilizing open segments can be formed. Compared with the prior art, the flame stabilizing holes in the flame stabilizing fire cover can be usedfor heating the root portions of the main fire holes, a flame stabilizing effect can be achieved well, and the bottom walls of the outer side ends of the hole channels of the flame stabilizing holesare notched and suspended so that the flame stabilizing open segments can be formed; the flame stabilizing open segments are formed, the wall pasting effect of overflowing liquid can be interdicted, and therefore it is avoided that the overflowing liquid flows into the hole channels of the flame stabilizing holes, and it is thoroughly avoided that the overflowing liquid blocks the flame stabilizing holes; and the flame stabilizing open segments are arranged, flame stabilizing airflow in the hole channels of the flame stabilizing holes can perform pressure diffusing and speed decreasing in theflame stabilizing open segments, and therefore the flame stabilizing effect is improved.

The invention relates to a ramjet combustion chamber, and provides a ramjet combustion chamber stabilizer and a flame stabilization method. The problems that existing mechanical flame stabilizers havelarge pneumatic loss and narrow flame stabilization range, and consequently the working reliability is low, and the requirement of efficient flame stabilization under the high Mach number cannot be met are solved. The ramjet combustion chamber stabilizer includes a sweepback arc-shaped supporting plate, the sweepback arc-shaped supporting plate includes a bottom face, two end faces and two side profiles, the cross section of the sweepback arc-shaped supporting plate is triangle-like, the front parts of the two side profiles are connected, and the two side profiles are concaved to form an arcside profile.

The invention belongs to the field of ultra-low nitrogen combustors, and particularly discloses a multi-grade air combustion-supporting ultra-low-nitrogen combustor. The multi-grade air combustion-supporting ultra-low-nitrogen combustor comprises a fire observation hole, a flame monitoring hole, a secondary combustion cylinder, a shell, a secondary combustion head and a central combustion head; anindependent central combustion-supporting air passage and a central fuel passage are adopted, and the central combustion-supporting air passage and the central fuel passage can be independently controlled, the combustion-supporting components of the air do not change with the change of a combustion load, so that the independence of combustion can be kept all the time, and the combustor can ensurestable combustion of the center fuel and can ensure that the center fuel is not affected by the outside smoke components. According to the scheme, a central open fire is adopted to directly ignite the secondary fuel to stabilize flames, and the multi-grade air combustion-supporting ultra-low-nitrogen combustor has obvious difference in stabilizing flames compared with the traditional mode of continuously igniting the flames by means of high-temperature flue gas backflow, the flame-stabilizing effect is obviously improved, the multi-grade air combustion-supporting ultra-low-nitrogen combustorcan keep the flame absolutely stable, and can ensure that excellent low NOX emission is achieved.

The invention discloses a wireless control stove high in combustion efficiency. A bottom shell, a panel, burners, electromagnetic valves, single-layer liquid containing discs, distributors, pot supports I, a key assembly, a controller and an intelligent terminal are included. The single-layer liquid containing discs, the distributors and the pot supports I are coaxially arranged at the upper endsof burner holes I. According to the stove, a user can remotely turn off the fire through the intelligent terminal, and the danger possibly happening when the user forgets to turn off the fire and goesout is effectively avoided. The user can control the stove in a kitchen and can also remotely control the stove, a more user-friendly operation manner is achieved, and the requirements of massive users, particularly young users can be met. Distributor fire row holes I are arranged in staggered layers, a certain height difference is generated, secondary air needed for combustion can be better supplemented, combustion is more sufficient, less carbon monoxide is emitted, and more energy saving and environment friendliness are achieved. The requirement for the combustion performance can be met while the heat loads are improved, and the distributors can adapt to the higher and wider combustion load range.

The invention relates to a burner for a gas stove, which is characterized in that it includes a base and a second connecting body arranged on the base, the second connecting body includes an inner platform located in the center, the inner platform The central position has a first injection channel with an inclined axis relative to the horizontal plane, a first injector and a first fire cover arranged in the base; the first fire cover includes a top wall and an outer ring wall, and the upper edge of the outer ring wall There are at least two inner fire holes communicating with the first air mixing chamber at intervals in the circumferential direction, the first wall surface of the outer ring wall below the inner fire hole shrinks inward partially in the radial direction, the outer ring wall, the first wall surface and the convex The wall forms an inverted "L"-shaped flame stabilization channel at the junction. Compared with the prior art, the present invention has the advantage that the central position of the inner platform has a first injection channel with an inclined axis relative to the horizontal plane, so that the first The injection channel can be made longer, so that the inner fire hole of the first fire cover is easy to leave the flame, and the inverted "L"-shaped flame-stabilizing channel can play a role in stabilizing the flame on the one hand.

The invention provides a nozzle head for a gas turbine and a nozzle for the gas turbine. The nozzle head for the gas turbine comprises a body. The body comprises an input section, a premixing section and an output section which are connected in the axial direction of the body, and the input section is provided with an air conveying channel and a fuel conveying channel. The premixing section is provided with a first fuel conveying cavity communicating with the fuel conveying channel and premixing channels communicating with the air conveying channel, the first fuel conveying cavity is adjacent to the side wall face of the premixing section and communicates with the premixing channels, and the output section is provided with ejection cavities communicating with the premixing channels and ejection holes communicating with the ejection cavities. The ejection cavities comprise a first ejection cavity sections which are staggered with the premixing channels. The nozzle head for the gas turbine has the advantages of being high in flame stabilizing capacity and capable of cooling the body.