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

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 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 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.

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 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 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 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 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.