77results 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.

An 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 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.

The aim is to create a gas tube burner for a portable gas grill to utilize the entire grilling surface with even heat distribution, especially in the edge zones, while simultaneously providing two controllable zones. This is achieved by a mobile, double-chamber tube burner for detachable insertion into portable gas grills, comprising a burner tube (2) with two divided gas mixture chambers (17) and two gas connections (16) to these gas mixture chambers (17).

A heating device comprises a device input and a device output, a conduit for conducting a flow of fluid from the device input to the device output, a hydrogen-burning torch arranged to heat the flow of fluid between the device input and the device output by flame-heating, and a spark ignitor arranged to light the torch. The heating device may be used to heat a flow of supercritical hydrogen derived from a store of liquid hydrogen to provide a flow of gaseous hydrogen. The device may be used in a fuel delivery system for a hydrogen-burning gas turbine engine, providing a weight saving compared to a hydrogen fuel delivery system having a fuel pre-heater which includes a heat-exchanger.

A heating apparatus (1), in particular for recreational vehicles like campers or caravans, comprises a heating unit (10) and two separate heat exchanging units (30) and (40), which are coupled to the heating unit (10) in parallel with each other. The heating unit (10) comprises one burner (20) and (22) for each heat exchanging unit (30) and (40), and at least one combustion air fan unit (26) configured to supply the burners (20) and (22) with combustion air. The burners (20) and (22) are configured to burn fuel gas or liquid further supplied to each of the burners (20) and (22) together with the combustion air received from the combustion air fan unit (26) to get hot exhaust gasses. The heat exchanging units (30) and (40) are configured to receive the exhaust gasses from the burners (20) and (22), and to transfer heat from the exhaust gasses to fluids to be heated, provided within the heat exchanging units (30) and (40). The heat exchanging units (30) and (40) are positioned in parallel with each other side by side on one side of the heating unit (10). Furthermore, the present invention refers to a recreational vehicle with such a heating apparatus (1).

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 method for detecting flame holding in at least one combustor of a turbine engine includes measuring dynamic pressure data of at least one combustor of the turbine engine, converting the dynamic pressure data into a frequency domain spectral energy amplitude of the dynamic pressure data, and comparing the spectral energy amplitude to a dynamic amplitude threshold to determine whether the amplitude exceeds a threshold minimum amplitude value, wherein exceeding the dynamic amplitude threshold indicates the occurrence of flame holding.

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.

OBJECT To provide an industrial furnace that burns ammonia efficiently decreasing nitrogen oxides without need for higher cost. MEANS OF REALIZING THE OBJECT An industrial furnace is equipped with a regenerative burner which includes a pair of first and second burners. The first and second burners burn ammonia. Air nozzles, used to expel combustion air into the furnace, are provided at a center of the first and second burners. Fuel nozzles, used to expel fossil fuel into the furnace, are provided on one of both sides that sandwich the air nozzles. Ammonia nozzles, used to expel ammonia into the furnace, are provided on another one of the both sides of the air nozzles.

A method for detecting flameholding in at least one combustor of a turbine engine includes measuring dynamic pressure data of the at least one combustor of the turbine engine; converting the dynamic pressure data to frequency-domain spectral energy amplitudes for the dynamic pressure data; and comparing the spectral energy amplitudes against a dynamic amplitude threshold value to determine whether the amplitudes exceed the threshold minimum amplitude value, wherein exceeding the dynamic amplitude threshold indicates a flameholding occurrence.

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.,

An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.

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 cooktop appliance and gas burner assembly are provided. A first burner body includes a plurality of first flame ports distributed along a circumferential direction about a central combustion zone radially inward of the plurality of first flame ports. The first burner body includes a first mixing chamber fluidly coupled to the plurality of first flame ports to distribute a first flow of fuel therethrough. A second burner body includes a plurality of second flame ports distributed along the circumferential direction about the central combustion zone. The second burner body includes a second mixing chamber fluidly coupled to the plurality of second flame ports to distribute a second flow of fuel therethrough. The second burner body is positioned radially inward of the first burner body, and the plurality of second flame ports is positioned along an axial direction below the plurality of first flame ports.

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 present invention provides a scrubber combustor comprising: a preheat spray ring formed using a porous material having a predetermined thickness and preheating and spraying fuel gas in a preheat combustion space formed therein; a preheat guide ring surrounding the outer periphery of the preheat spray ring and having a plurality of preheat guide holes penetrating from the outer periphery to the inner periphery; and a preheat combustor module including a housing separated from the outer periphery of the preheat guide ring and forming a ring-shaped gas channel through which the fuel gas flows.

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 prevent emissivity of flame from decreasing upon combusting carbon fuel mixed with low carbon fuel.SOLUTION: There is provided a combined combustion furnace comprising a furnace, a first burner that injects carbon fuel to the furnace to burn the same, and a second burner that injects low carbon fuel of a lower carbon concentration relative to the carbon fuel to the furnace to burn the same. The first burner injects the carbon fuel in such a manner that carbon fuel flame is formed in a closer vicinity of the furnace wall relative to low carbon fuel flame resulting from the combustion of the low carbon fuel.SELECTED DRAWING: Figure 1