47results about "Multiple burner assembly" patented technology

A gas turbine engine including a fuel injector having an outer valve body with an inner passage, a wall at least partially enclosing the inner passage, the wall having an inner surface, an outer surface, and one or more channels passing through the wall between the outer surface of the wall and the inner surface of the wall, and a retractable valve body positioned within the inner passage of the outer valve body. The retractable valve body has one or more slots in fluid communication with the fluid spin chamber. The retractable valve body is positioned within the inner passage to move along a reciprocating axis at one or more valve positions including an advanced valve position, a retracted valve position, an open valve position, and a closed valve position.

The burner assembly comprises a first burner and a second burner, the first burner and the second burner are in a hollow cylinder shape, and a plurality of first grooves and second grooves connected with the upper end face and the lower end face are evenly formed in the outer side walls of the first burner and the second burner correspondingly. The first combustor is coaxially arranged in the second combustor, and the outer diameter of the first combustor is matched with the inner diameter of the second combustor, so that a circle of first flame path is formed between the first grooves and the inner wall of the second combustor; the second combustor is coaxially arranged in the gas stove burner, and the outer diameter of the second combustor is matched with the inner diameter of the gas stove burner, so that a circle of second flame path is formed between the second grooves and the inner wall of the gas stove burner. The gas stove is convenient to process, can be conveniently detached for cleaning when being blocked, and can also be conveniently mounted in the gas stove after being cleaned.

The present application provides an intelligent heating device and an oven. The intelligent heating device includes a gas pipe, a burner and an electronic control component. The burner is connected to the gas pipe. The burner has a heating mode and a heat preservation mode. The electronic control component is configured for detecting a temperature of the burner and automatically controlling gas intake of the burner so that the burner enters the heating mode or the heat preservation mode. The technical solution of the present application aims to enable the burner to automatically maintain the temperature within a set range.

The application discloses a natural gas combustion spray gun for a large glass furnace, which comprises a coaxially arranged outer sleeve and an inner sleeve; a flow guide column is fixed at the front end of the inner sleeve, and an arc-shaped flow guide groove is formed in the circumferential surface of the flow guide column; a blind hole is formed at the front end of the flow guide column, and a third flow guide hole is formed in the flow guide column and is communicated with the arc-shaped flow guide groove and the blind hole; a second flow guide hole and a first flow guide hole are sequentially formed at the front end of the inner sleeve from front to back, and the second flow guide hole and the first flow guide hole are directed to the arc-shaped flow guide groove on the flow guide column; a heat insulation sleeve is sleeved at the front end of the outer sleeve, and a positioning ring is fixed in the inner part of the front end of the outer sleeve; a plurality of turbulence columns are uniformly fixed at the front end of the flow guide column and pass through the positioning holes in the positioning ring. The flow guide column is arranged at the front end of the inner sleeve, and the turbulence column is arranged at the nozzle position, so that the mixing area is enlarged, the atomization effect of the natural gas on the ethylene tar is improved, the fuel and the combustion-supporting agent are fully mixed, the fuel utilization rate is improved, and the heat radiation effect in the furnace is improved.

A combustion assembly and a combustion furnace, the combustion assembly comprising a block divided over its height h into a plurality of levels, each level containing a passage for injecting fuel and / or oxidant, each passage extending from an inlet face to an outlet face and terminating in an injection orifice in the outlet face of the block, the injection orifices of each level define a contact rectangle on the outlet face, and further comprising burners provided one per level, each burner having a fuel injector and an oxidant injector, each burner being mounted on a corresponding level of the block such that the fuel and oxidant injectors of the burner are inserted into the passages of the corresponding level, the passages of each level are oriented and spaced apart such that when flames are generated downstream of the exit face, flames generated by the burners are spaced apart from each other and do not converge, and in the level adjoining the lower end of the block, a contact rectangle defined on the exit face has a line segment perpendicular to the height h direction, the length x is at least twice the length y of a line segment parallel to the height h direction.

An annular nozzle (1) for enclosing a nozzle lance inserted therein has a longitudinal axis (L) and an outer nozzle end (2) for dispensing a gas or gas mixture. The annular nozzle (1) has an annular outer channel (5) extending between an outer tube (3) and an inner tube (4) towards the outer nozzle end (2), which opens in the region of the outer nozzle end (2) into at least one, preferably annular, outer outlet opening (6). Opposite the outer outlet opening (6), a Hartmann generator (7) is formed on the inner tube (4), pointing away from the longitudinal axis (L). The inner tube (4) encloses an inner shaft (8) for inserting the nozzle lance.

A burner employed in a submerged combustion vessel for melting high index glass includes an arch positioned on the burner in the submerged combustion vessel. An amount of combustible gas flows through a first aperture disposed in a first haunch of the arch and through a second aperture disposed in a second haunch of the arch. Fuel is supplied through an end orifice in the fuel supply line. The end orifice is disposed below the arch. A quantity of glass is fed into the submerged combustion vessel and melted inside the submerged combustion vessel by igniting the burner. Some of the molten glass is at least partially solidified against a wall of the submerged combustion vessel such that the molten glass is contained in its own vessel.

Systems and methods may control a regenerative burner system for a metal furnace. The systems and methods include measuring oxygen in exhaust gas from the regenerative burner system and downstream from a burner media bed of the regenerative burner system. The systems and methods may determine at least one of an amount of excess combustion air or a combustion efficiency based on the measured oxygen in the exhaust gas. A control response may be generated based on the determined amount of excess combustion air or combustion efficiency.

A burner comprises a central conduit, a first annular conduit, and a nozzle plate across the outlet of the first annular conduit, wherein the nozzle plate comprises a plurality of orifices that extend through the nozzle plate, and a second annular conduit which opens into a downstream space, wherein the central conduit and the first annular conduit are controllably connected to a first reactant and the second annular conduit is controllably connected to a source of a second reactant, wherein one of the first and second reactants comprises fuel and the other of the first and second reactants comprises oxygen. Combustion apparatus comprises a plurality of the burners, preferably arranged in two planes each of which contain at least one of the burners. A fuel-rich flame can be emitted in one of the planes and a fuel-lean flame can be emitted in the other plane. The fuel-rich and fuel-lean nature of the flames emitted in the respective planes can be periodically alternated.

A method for providing automatic enhanced staged oxygen combustion in a glass furnace including providing two or more burner assemblies each positioned to provide a flame in the glass furnace. Each of the burner assemblies includes a burner body having a primary gas inlet in fluid communication with a gas source through a primary gas valve, and a staged injector sub-assembly having a secondary gas inlet in fluid communication with the gas source through a secondary gas valve. The primary gas valve and the secondary gas valve are automatically controlled to alternate the total gas flow between a first total gas flow condition with the secondary gas flow rate at a secondary gas flow rate maximum value and a second total gas flow condition with the secondary gas flow rate at a secondary gas flow rate minimum value to provide enhanced staged oxygen combustion.

A furnace for implementing an endothermic process comprising: - a combustion chamber (1) delimited by a wall (2), - at least one tubular reactor (3) positioned in the combustion chamber (1), - at least one burner (4b) arranged in the combustion chamber (1) to supply the tubular reactor (3) with the heat necessary for the endothermic process, - the burner (4b) comprising at least one flame discharge nozzle, the nozzle being oriented along an axis (A'; A'') of the nozzle, characterized in that the chamber (1) has, on at least a portion of an internal surface of the wall (2), an internal profile (7) that is convex and curved in a direction of the axis (A'; A'') of the nozzle, the profile being adjacent to said burner (4b). Abbreviated figure: Fig. 5

The invention relates to a heating apparatus (1) having at least one reaction unit (2) for generating heat from a reaction gas mixture comprising hydrogen, gaseous hydrocarbon and / or oxygen, wherein the at least one reaction unit (2) has at least one first reaction portion (3) with at least one hydrogen catalyst (6) for the flameless combustion of the hydrogen. According to the invention, the at least one reaction unit (2) comprises at least one second reaction portion (4) for combusting the gaseous hydrocarbon and / or the heating apparatus (1) comprises at least one separating device (5) for separating the gaseous hydrocarbon and the hydrogen. The invention also relates to the use of a heating apparatus (1) and to a method for operating a heating apparatus (1).

Combustion assembly and furnace comprising at least one such combustion assembly, the combustion assembly comprising a non-metallic refractory block (10) extending over a height h between a lower end (11) and an upper end (12), having an inlet face (14) and an outlet face (13) opposite the inlet face (14), the block (10) being divided over its height h into several stages (et1, et2, et3, et4), each stage (et1, et2, et3, et4) being pierced by at least one passage (p) for the injection of fuel and / or oxidizer, each passage (p) extending from the inlet face (14) to the outlet face (13) and terminating in at least one injection opening (21, 22, 23) in the outlet face (13) of the block, the at least one injection opening (21, 22, 23) of each floor (et1, et2, et3,et4) defining on the outlet face (13) a contact rectangle (25) two segments of which are parallel to the direction of height h and two segments of which are perpendicular to the direction of height h, the assembly also comprising burners capable of generating flames (f1, f2, f3, f4) whose length can be varied at constant flame power at a rate of one burner per stage (et1, et2, et3, et4), each burner having at least one injector for injecting a fuel (31) fluidly connected to a fuel inlet of the burner and at least one injector for injecting an oxidizer (32, 33) fluidly connected to an oxidizer inlet of the burner, each burner being mounted on the corresponding stage (et1, et2, et3, et4) of the block (10) such that the fuel and oxidizer injectors (31, 32, 33) of the burner are inserted into at least one passage (p) of said stage (et1, et2, et3,et4) corresponding and such that the fuel and oxidizer inlets of the burner are located on the side of the inlet face (14) of the block (10), the at least one passage (p) of the different stages (et1, et2, et3, et4) being oriented and spaced so that when the burners generate flames (f1, f2, f3, f4) downstream of the outlet face (13), the flames (f1, f2, f3, f4) generated by the different burners are spaced apart and non-convergent, the contact rectangle (25) defined on the outlet face (13) at the stage (et1) contiguous to the lower end (11) of the block (10) having segments perpendicular to the direction of height h whose length x is at least twice the length y of the segments parallel to the direction of height h.,

A combustion burner employed in a submerged combustion vessel used to melt high index glass includes an arch positioned on a burner in the submerged combustion vessel. An amount of combustible gas flows through a first port disposed in a first haunch of the arch and through a second port disposed in a second haunch of the arch. Fuel is supplied through an end port in a fuel supply line. The end port is disposed under the arch. An amount of glass is fed into the submerged combustion vessel and is melted inside the submerged combustion vessel by igniting the burner. Some of the melted glass at least partially solidifies against a wall of the submerged combustion vessel such that the melted glass is contained in a vessel of itself.

A burner assembly (34) includes a conduit (100) having a plurality of ports (208) formed along a length of the conduit (100). The conduit (100) is configured to direct a flow of gas out of the conduit (100) via the plurality of ports (208). The burner assembly (34) further includes a shroud (112) extending along a length of the conduit (100) and covering at least a portion of the conduit (100). The shroud (112) is perimetrically offset from the conduit (100) to form an air passage (306) between the shroud (112) and the conduit (100) along an outer perimeter (204) of the conduit (100). The conduit (100) and the shroud (112) are configured to facilitate airflow along the air passage (306) in response to the flow of gas out of the conduit (100).

An apparatus for heating petroleum, petrochemical, chemical process fluids, and boiler feed water or steam generation with a combination, or individual operation, of electrical elements and fired burners. The apparatus includes a radiant heating section and a flue gas stack for exhausting a combustion gas to the atmosphere. The radiant section includes one or more process coils, one or more fuel-fired burners for combusting a fuel and producing the combustion gas, where the one or more fuel-fired burners are arranged to provide radiant energy to a first area of the one or more process coils, and one or more electrical heating elements arranged to provide radiant energy to a second area of the one or more process coils. The one or more electrical heating elements are configured to provide 5% or more of a combined maximum energy output of the fuel-fired burners and the electrical heating elements.

A combustion device includes a solenoid valve configured to open and close an inflow port and an additional solenoid valve configured to open and close a communication port selectively mountable at an upstream end of a distribution flow passage with a small number of nozzles. When the additional solenoid valve is mounted, a state of supplying a fuel gas to only a distribution flow passage with a large number of the nozzles by opening the solenoid valve and closing the additional solenoid valve and a state of supplying the fuel gas to two distribution flow passages by opening the solenoid valve and opening the additional solenoid valve are mutually switchable. When the additional solenoid valve is not mounted, a state of supplying the fuel gas to the two distribution flow passages by opening the solenoid valve and a state of not supplying the fuel gas are mutually switchable.

To uniformly heat and brown a hot plate in a gas burner unit B provided with a gas burner 2 having a plurality of flame holes 22 opened upward along an X-axis direction and the hot plate 3 arranged above the gas burner and having a cross-sectional shape projecting upward.SOLUTION: A plurality of vent holes 31 for passing combustion gas are formed on a hot plate along the X-axis direction, and a plurality of vent hole rows 32 consisting of a plurality of vent holes arranged in the X-axis direction are arranged in parallel in the Y-axis direction. The vent hole is formed along the lower surface of a cut and raised piece part 34 of the hot plate cut and raised upward so as to open toward the Y-axis outward direction. A first vent hole row and a second vent hole row are adjacent to each other in the Y-axis direction, at least a part of the vent holes of the first vent hole row and the second vent hole row overlaps in the Y-axis direction, and a Y-axis direction outer edge of the cut-and-raised piece of the first vent hole row is close to a Y-axis direction inner edge of the cut-and-raised piece of the second vent hole row.SELECTED DRAWING: Figure 6

A gas turbine engine includes a fuel injector having an outer valve body having an inner passage, a wall at least partially surrounding the inner passage, the wall having an inner surface, an outer surface, and one or more passages through the wall between the outer surface of the wall and the inner surface of the wall, and a retractable valve body, a retractable valve body is positioned within the inner passage of the outer valve body. The retractable valve body has one or more slots in fluid communication with the fluid rotating chamber. A retractable valve body is positioned within the internal passage to move along a reciprocating axis at one or more valve positions, including an advanced valve position, a retracted valve position, an open valve position, and a closed valve position.

The utility model discloses an environment temperature response type temperature control high-precision cooling-water machine which comprises a cooling-water machine shell, a water tank, a condenser B, a condenser A and an air inlet, a compressor is installed in the cooling-water machine shell, and an electric control valve B and an electric control valve A are arranged at two openings of a tee joint respectively. Two openings of the three-way connector are connected with the condenser B and the condenser A through pipelines respectively, a control valve A and a control valve B are arranged at the two openings of the three-way connector respectively, the two openings of the three-way connector are connected with the condenser B and the condenser A through pipelines respectively, an air inlet is formed in the cooling-water machine shell, and an air outlet is formed in the cooling-water machine shell. A temperature sensor is installed at the air inlet, and a controller is installed on the cooling-water machine shell. The cooling-water machine can make a response according to the environment temperature, the working states of the two condensers are automatically adjusted, it is ensured that the cooling-water machine can be kept in an efficient operation state at different environment temperatures, and the cooling efficiency and effect of the cooling-water machine are effectively improved.

Disclosed in the present invention is a burner for burning gaseous fuel. The burner includes a gas intake port, several horizontal portions, and several inclined portions. One end of each inclined portion located at a lower position is connected and fixed to one end of a horizontal portion, and the other ends of all the horizontal portions are connected to each other either directly or by means of a combustion chamber main body. The horizontal portions, the inclined portions, and the combustion chamber main body each have an internally hollow structure and are in communication with each other. The inclined portions are inclined upwardly at an angle ∠α with respect to the horizontal portions, and the inclined portions and the horizontal portions are combined into the shape of a three-dimensional geometric space. The gas intake port is provided at the very bottom of the burner and is in communication with the interior of the burner. First flame holes are provided in the horizontal portions, second flame holes are provided in the inclined portions, and third flame holes are provided in the combustion chamber main body. When a gaseous fuel is introduced and ignited, flames burn in each of the combustion chamber main body, the horizontal portions, and the inclined portions, thereby forming a flame effect in a three-dimensional (3D) form.

The present invention discloses a fireplace for gasifying and burning fuel. The fireplace includes a housing, a burner, a gasification device, a liquid supply device, a fuel tank, and a controller. The burner is composed of a gas intake port, several horizontal portions, and several inclined portions. One end of each inclined portion located at a lower position is connected and fixed to one end of a horizontal portion, and the other ends of all the horizontal portions are connected to each other either directly or by means of a combustion chamber main body. The horizontal portions, the inclined portions, and the combustion chamber main body each have an internally hollow structure and are in communication with each other. The inclined portions are inclined upwardly with respect to the horizontal portions, and the inclined portions and the horizontal portions are combined into a three-dimensional geometric space shape. The gas intake port is provided below the burner and communicates with the interior of the burner. The horizontal portions are provided with first flame holes, the inclined portions are provided with second flame holes, and the combustion chamber main body is provided with third flame holes. When the burner is ignited, flames are burning in each of the combustion chamber main body, the horizontal portions, and the inclined portions, thereby forming a flame effect in a three-dimensional (3D) form.

A burner including a first burner element having a first annular oxidant nozzle surrounding a first inner fuel nozzle; a second burner element having a second annular oxidant nozzle surrounding a second inner fuel nozzle, the second burner element being positioned adjacent to and spaced apart from the first burner element; a staging nozzle configured to flow secondary oxidant and being positioned adjacent to and spaced apart from the second burner element and separated from the first burner element by the second burner element; wherein the first inner nozzle and the second inner nozzle each have a major axis defined by a length L and a minor axis defined by a height hf; wherein 5 <= L / hf <= 15; wherein the staging nozzle has a major axis; and wherein the major axes of the first and second inner nozzles and the staging nozzle are substantially parallel with each other.

The invention discloses a blast system control method and a stove control method, a blast system comprises a fan and an air volume adjusting device, and the air volume adjusting device is used for conveying airflow generated by the fan to a corresponding combustor. The blast system control method comprises the steps that after a stove is started, gears of all current working combustors are obtained; when the gear of at least one combustor is larger than the preset gear, a fan is controlled to be started, and the working mode of the stove is obtained; according to the obtained working mode, an air volume adjusting device is controlled to convey air flow generated by a draught fan to the corresponding combustor; and in the current working mode, when the gear of the corresponding combustor changes, the air volume adjusting device is controlled to adjust the air flow conveyed to the corresponding combustor according to the gear change condition. According to the control method, the air supply amount of the fan to each combustor can be dynamically adjusted according to the working mode and gear condition of the stove, the air-fuel ratio of each combustor is accurately matched, the combustion efficiency is improved, and the energy-saving effect is improved.

[Problem] To provide an industrial furnace which burns ammonia effectively while achieving a reduction in nitrogen oxides, without a particular increase in cost. [Solution] In an industrial furnace 100 equipped with a regenerative burner comprising a pair of burners 10, 20: air nozzles 11, 21 for discharging combustion air into the furnace are provided in furnace walls 101, 102 in positions at the centers of the burners 10, 20; fuel nozzles 12, 22 for discharging a fossil fuel into the furnace are provided on one of two sides sandwiching the air nozzles 11, 21, and ammonia nozzles 13, 23 for discharging ammonia into the furnace are provided on the other side; and the ammonia is burned using the burners 10, 20.

A combustion burner employed in a submerged combustion vessel used to melt high index glass includes an arch positioned on a burner in the submerged combustion vessel. An amount of combustible gas flows through a first port disposed in a first haunch of the arch and through a second port disposed in a second haunch of the arch. Fuel is supplied through an end port in a fuel supply line. The end port is disposed under the arch. An amount of glass is fed into the submerged combustion vessel and is melted inside the submerged combustion vessel by igniting the burner. Some of the melted glass at least partially solidifies against a wall of the submerged combustion vessel such that the melted glass is contained in a vessel of itself.

A multi-tube burner system for efficient mixing of fuel and air for combustion is disclosed. The multi-tube burner system includes an air supply plenum, a multi-tube burner, and a combustor. Further, the multi-tube burner includes a set of tubes including the air supply section to receive combustion air and supply the received combustion air to a mixing section. Furthermore, the multi-tube burner includes a set of fuel pipes to receive fuel from a set of fuel inlets and supply the received fuel to a set of fuel plenums. Furthermore, a pair of fuel receiving channels receive the fuel from the set of fuel plenums and a fuel injector pin injects the received fuel from the pair of fuel receiving channels to the mixing section. Further, a set of mixing holes allow egression of the combustion air and the fuel mixture from the mixing section to the combustor.

The invention provides a combustor which not only can perform special combustion, but also can perform co-combustion of biomass and carbon-free fuel. The present invention is provided with: an outer cylinder nozzle (62); a flame holder (71) for holding the flame formed by the outer tube nozzle (62); an inner cylinder nozzle (61) that extends along the central axis (CL) on the inner peripheral side of the outer cylinder nozzle (62) and opens toward the inside of the hearth (11); a plurality of ammonia nozzles (80) capable of supplying ammonia fuel to the inside of the hearth (11) from a position closer to the outer peripheral side than the flame holder (71); rotating blades (76, 77) provided on the outer periphery of the inner cylinder nozzle (61); and a distributor (78) that is provided between the rotor blades (76, 77) and the tip of the inner cylinder nozzle (61), distributes the flow path between the outer cylinder nozzle (62) and the inner cylinder nozzle (61) to the inner peripheral flow path (79a) and the outer peripheral flow path (79b), and the cross-sectional area of the outer peripheral flow path (79b) increases toward the tip of the outer cylinder nozzle (62).

Disclosed are a gas furnace and an air conditioner having the same. The gas furnace includes: a fuel valve; a manifold providing a passage of fuel passing through the fuel valve; a plurality of burners provided to burn fuel provided from the manifold and spaced apart from each other in one direction; a plurality of heat exchangers providing a passage of combustion gas generated by the plurality of burners; and a blower for causing a flow of air passing around the heat exchanger. The manifold includes: a first tube having one end connected to the fuel valve and forming a first passage; a second tube extending in the one direction, forming a second passage, and facing at least one of the plurality of burners; a third tube extending in the one direction, forming a third passage, and facing remaining burners of the plurality of burners; and a three-way valve connected to the first tube, the second tube, and the third tube.