136results about "Combustion chambers" patented technology

The present invention relates to particular combustors, and e.g., to a combustor comprising a central primary fuel lance, a pilot fuel conduit, a primary oxidant conduit, a secondary oxidant conduit, and optionally a secondary fuel conduit, which are arranged in a particular and advantageous manner so as to surround each other at least in their downstream sections. The invention also relates to a furnace comprising the burner and a method of operating the burner. The burner according to the invention provides, in particular, a particularly advantageous way that comprises a pilot burner as part of the main burner in order to ignite a liquid fuel flame in a cold furnace. If desired, the pilot flame may help extend the flammability limit or operating range of the liquid fuel burner.

An apparatus for treating a fluid including an organofluorine compound, the apparatus including: a vessel that contains a liquid with a fluoride bonding agent; a combustion chamber in fluid communication with the vessel via an outlet submerged in the liquid; an inlet configured to introduce the fluid into the combustion chamber; and a flame source configured to produce a flame in the combustion chamber to at least partially break down the organofluorine compound to form a gaseous combustion product bearing fluoride, wherein the gaseous combustion product passes from the outlet of the combustion chamber through the liquid so that the fluoride in the gaseous combustion product is at least partially bound by the fluoride bonding agent.

The invention provides an apparatus and method for operating a cyclone burner using a gaseous fuel.

The application discloses a kind of heating and processing device for fine slag fluid of pulverized coal gasification, belong to the field of fine slag fluid resource utilization of pulverized coal gasification, including main combustion chamber, secondary combustion chamber and shaft flue;Between main combustion chamber and secondary combustion chamber, and between secondary combustion chamber and shaft flue are provided with cyclone separator, the back material part of the cyclone separator is communicated with main combustion chamber, and energy recovery part is further provided in the shaft flue, and the energy recovery part is communicated with main combustion chamber, and the fuel of the main combustion chamber is the fine slag generated after pulverized coal gasification;The fine slag after pulverized coal gasification is burned by the main combustion chamber, and the energy in tail gas is recovered and filled into main combustion chamber for secondary use by energy recovery part;Secondary combustion chamber is simultaneously used to burn material again, to realize the resource utilization of fine slag after pulverized coal gasification, solid particles and gas are separated by cyclone separator, and solid particles are burned again in main combustion chamber, so that fine slag after pulverized coal gasification is burned more fully.

A pyrolysis system for conducting a hydrocarbon pyrolysis reaction and related systems and methods are disclosed herein. In some embodiments, the pyrolysis system includes a combustion component, a reaction chamber thermally coupled to the combustion component, and a recycling component fluidly coupled to an output of the reaction chamber. The reaction chamber can be couplable to a supply of pyrolysis feedstock. The thermal coupling allows the reaction chamber to transfer heat from the combustion component to the pyrolysis feedstock to generate a product stream that includes hydrogen gas and solid carbon. The recycling component receives the product stream and can direct a portion of the product stream into the combustion component. In some embodiments, the pyrolysis system includes a controller configured to adjust various operational parameters of the pyrolysis system based on various goals for combustion fuel consumption, hydrogen gas output, energy consumption, reactor efficiency, and / or the like.

The invention discloses a clean combustion method of biomass fuel, which is characterized in that a Ni-Co-Ce-Zn-O / Al2O3 quaternary gradient structured catalyst is designed and prepared for the first time, and abundant oxygen vacancies and redox cycle networks are constructed through multi-metal component atomic-scale compounding; a'porous carrier-active layer-surface modification layer 'gradient configuration is adopted, and catalytic activity, adhesive strength and inactivation resistance are synergistically regulated and controlled on a nano-micron scale. A special sol-gel and segmented coating process is combined, the catalyst forms a uniform and firm active coating with a high specific surface area on the surface of the metal wire mesh cage, and excellent structural stability and catalytic durability are still kept under the conditions of high temperature, vibration and electric field-sound field coupling. According to the catalyst system, the soot ignition activity and the low-temperature conversion efficiency of CO and nitrogen oxide are remarkably improved, intrinsic synergy with an electric field and a sound field is achieved through the dielectric property and the surface dynamic response behavior of the catalyst system, and a catalysis-electricity-sound ternary coupling enhanced reaction microenvironment is formed.

The invention relates to a burner with a refractory burner body 1, 2, 3 for burning fluid or aerosolized, in particular gaseous, fuels. With the aim of reducing NOx emissions, the burner body has a gas nozzle 7, 9, 10, 11 and several air nozzles 4, 6, which are at least partially formed as integral features within the burner body and exit at a front face 16 of the burner body. The air nozzles are arranged symmetrically around the gas nozzle and diverge at an angle α to the gas nozzle. The invention also relates to a method for burning fluid or aerosolized, in particular gaseous, fuels with reduced NOx emissions.

The invention relates to the technical field of solid combustion chamber metal end sockets, and discloses a solid combustion chamber metal end socket connecting structure which comprises a box body, and a base is fixedly connected to the outer wall of the box body; the connecting mechanisms are fixedly arranged at the ends of the two sides of the box body and used for sealing the interior of the box body; the gas storage mechanism is fixedly arranged on the inner wall of the connecting mechanism and is used for controlling the flowing direction of the flue gas; the flow guide mechanism is fixedly arranged on the inner wall of the connecting mechanism and is used for reducing the impact of flue gas, through the arrangement of separation holes, when gas makes contact with a flow guide plate, the gas enters the separation holes, the gas in the separation holes begins to collide with one another, and when the gas collides with one another, the gas in the separation holes is separated from the flow guide plate; solid particles in the gas can be influenced by inertia force, and the solid particles can be left in the separation holes, so that the situation that when the smoke is leaked, a large number of solid particles are carried to the outside, and consequently devices or personnel existing outside are damaged is prevented.

A heater including a cylindrical housing with an inlet end, an outlet end, and an axis extending between the inlet end and the outlet end. A combustion chamber is positioned at least partially within the cylindrical housing. A base is coupled to the cylindrical housing. A user interface is operable to control combustion within the combustion chamber. The axis is positioned between the base and the user interface.

The invention relates to an integrated method for thermal conversion and indirect combustion of a heavy hydrocarbon feedstock in a redox chemical loop for producing hydrocarbon streams. The heavy hydrocarbon feedstock (1) is brought into contact with inert particles (2) in a thermal conversion zone (100). Thermal conversion in the absence of hydrogen, water vapour and a catalyst produces a first gaseous effluent of hydrocarbon compounds (4) and coke, which effluent is deposited on the inert particles (5). The latter is then burned in a redox chemical loop (200) in the presence of oxygen-carrying solid particles (6). The inert particles thus flow between the thermal conversion zone (100) and a reduction zone (300) of the chemical loop while the oxygen-carrying solid particles flow between the oxidation (400) and reduction zones (300) of the chemical loop.

To provide a recuperator having an improved heat exchange function between combustion exhaust gas and combustion air.SOLUTION: This recuperator 3 exchanges heat between combustion exhaust gas flowing in a radiant tube 1 and combustion air used for burning a burner used for the radiant tube 1, and a plurality of groove parts 7 extending in a zigzag shape in the longitudinal direction of the recuperator 3 are formed on an outer surface of the recuperator 3.SELECTED DRAWING: Figure 4

The present invention provides a hydrogen combustion system and a furnace hydrogen purging method that can inexpensively purge residual hydrogen in the furnace of a combustor in the event of an abnormal shutdown of the combustor. [Solution] The hydrogen combustion system comprises a first air supply pipe and a first exhaust pipe connected to a first combustor, a second air supply pipe and a second exhaust pipe connected to a second combustor, a first bypass pipe connecting the first air supply pipe and the second exhaust pipe, a second bypass pipe connecting the second air supply pipe and the first exhaust pipe, a first switch for switching to connect either a first air supply path between the air intake port of the first combustor and the first air supply source or a first bypass path between the air intake port of the first combustor and the second exhaust pipe, and a second switch for switching to connect either a second air supply path between the air intake port of the second combustor and the second air supply source or a second bypass path between the air intake port of the second combustor and the first exhaust pipe.

This invention discloses a variable premixed flameless combustion furnace, comprising: a furnace body with an air inlet at the bottom and a flue gas outlet at the top; multiple variable premixed burners arranged at intervals in the lower part of the furnace body; a gas pipeline with its first axial end adjustablely positioned within the air pipeline, and its second axial end extending outside the air pipeline to form a fuel inlet, the gas pipeline slidingly sealing with an end cap; multiple ignition sources, each corresponding to one of the multiple variable premixed burners, for igniting the fuel at the burner outlet; and multiple blunt body assemblies, each corresponding to one of the multiple variable premixed burners, each blunt body assembly positioned between the corresponding variable premixed burner and an ignition source. The flameless combustion furnace provided by this invention is easy to operate and can achieve stable flameless combustion.

To create a safe and simply constructed fire column, the flame of which is fed by a fuel container, particularly for bioethanol, and surrounded by an outer shell (4), wherein supply air flows largely axially into the lower region of the outer shell via several guide elements (3) and is preferably set into a helical rotation to form a vortex flame, it is proposed that the outer shell (4) be placed over the guide elements (3). Preferably, the outer shell (4) is centered in an upright position by the outer edges (3a) of the guide elements (3).

The present disclosure teaches a system and method for generating power by a thermal power plant. The system and method includes a fuel heating chamber configured to receive a nano-thermite fuel, an induction assembly configured to inductively heat the fuel in the fuel heating chamber, and an electricity generating subsystem configured to convert heat from the heated nano-thermite fuel into electricity.

Radiant element (1) for heating an oven (200), comprising: - a first end (7); - a second free end (8); - a radiant structure (2) between the first end (7) and the second end (8); - a pipe (5) for supplying power to the inside of the radiant structure (2); - a first fastening leg (20) for mechanically coupling the radiant structure (2) to a support (3), a first coupling means (25) comprising a first portion (25a) arranged to be fastened to the support (3) and a second portion (25b) secured to the first leg (20), wherein the first portion (25a) and the second portion (25b) are mechanically coupled via a first interface (25c) so as to permit a relative movement between the first portion (25a) and the second portion (25b).

A gas burner has: a support wall forming an inlet opening communicating with an inner space of the burner; a diffuser wall connected to the support wall and formed with a perforation; the diffuser wall is a tubular, substantially cylindrical wall extending around a longitudinal axis of the burner and the support wall is oriented transversely with respect to the longitudinal axis, and wherein the inlet opening is eccentric with respect to the diffuser wall, and wherein the diffuser wall is a tubular, substantially cylindrical wall extending around the longitudinal axis of the burner and the support wall is oriented transversely with respect to the longitudinal axis. And the burner can be mounted in a main use position in which the longitudinal axis extends horizontally, and in which: the lower edge of the inlet opening has a first minimum vertical distance from the lower end of the support wall, and the upper edge of the inlet opening has a second minimum vertical distance from the upper end of the support wall, the first minimum vertical distance is greater than the second minimum vertical distance.

This invention provides a solid powder combustion power system, including a combustion power unit and an atomizing device. The combustion power unit consists of a powder inlet flange, a first-stage combustion chamber, an igniter assembly, and a tail nozzle connected coaxially in sequence. The atomizing device delivers solid powder into the combustion chamber via a pipeline through the powder inlet flange. The first-stage combustion chamber includes a water spray flange, a water inlet flange, and a connecting flange. Inner and outer pipes are installed between the water inlet flange and the connecting flange to form an annular sealed cooling water supply chamber, with the inner cavity of the inner pipe serving as the combustion chamber. The water inlet flange has a water inlet channel, and the water spray flange has a water spray channel with a water mist nozzle. The two are connected via a water supply channel with a switch valve, allowing water to be sprayed into the combustion chamber as needed. The igniter ignites the solid powder within the chamber, and the tail nozzle has a flame outlet for energy output. This system employs an integrated water-cooled structure on the combustion chamber wall, ensuring uniform cooling and facilitating installation and maintenance. The cooling water achieves uniform wall cooling and can also be sprayed into the combustion chamber to generate combustible gas, improving combustion efficiency and energy release.

Disclosed are a combustor for fuel combustion and a combustion method therefor. The combustor comprises a primary oxidant-fuel delivery assembly, a secondary oxidant delivery assembly, and a tertiary oxidant delivery assembly. The secondary oxidant delivery assembly and the tertiary oxidant delivery assembly are provided on the same side of the primary oxidant-fuel delivery assembly, and the secondary oxidant delivery assembly is located between the tertiary oxidant delivery assembly and the primary oxidant-fuel delivery assembly. The present invention combines the staged combustion and dilution combustion technologies, such that the combustor has a wide flame adjusting range, realizing adjustment of the flame combustion position, flame speed range, flame local atmosphere and flame length, effectively reducing the generation of NOx, and also achieving high heat transfer efficiency.

Burner (12) for heating a boiler room (55) with reduction of NOx emissions, comprising: a mixing and combustion chamber (54); a mixing and ignition device (51) arranged in the mixing and combustion chamber (54); a fuel supply (50) which is connected to the mixing and ignition device (51) and is designed to supply fuel to the mixing and ignition device (51); an air supply with an air supply pipe (30) delimiting the mixing and combustion chamber (54), which is designed to supply a first partial air flow (L1) to the mixing and combustion chamber (54); a recuperator (40) at least partially surrounding the air supply pipe (30), through which a second partial air flow (L2) is supplied to the mixing and combustion chamber (54) via the air supply; a combustion chamber opening (53) formed by the recuperator (40), which opens the mixing and combustion chamber (54) to a heating room (55) to be heated; Control means (60) designed to control a fuel flow (B) via the fuel supply (50) and to control at least the first partial air flow (L1) via the air supply, wherein the burner (12) and the control means (60) are designed to operate the burner (12) with a stable flame (56) extending from the mixing and ignition device (51) through the combustion chamber opening (53) into the heating chamber (55); wherein the air supply pipe (30) and the recuperator (40) each form an associated through-hole (33, 43) at their free end pointing in an axial direction (Z), which are arranged coaxially, wherein the through-hole (43) of the recuperator (40) forms the combustion chamber opening (53) and at least one air channel (39) through which the second partial air flow (L2) flows is formed between the recuperator (40) and the air supply pipe (30), which opens into the mixing and combustion chamber (54) between the through-hole (43) of the recuperator (40) and the through-hole (33) of the air supply pipe (30); characterized by the fact that the air supply pipe (30) forms a pipe extension (31) with an outer surface (32) tapering in the axial direction (z) towards the associated through hole (33) and the recuperator (40) forms a recuperator extension (41) with an inner surface (42) tapering in the axial direction (z) towards the associated through hole (43), wherein the pipe extension (31) and the recuperator extension (41) are arranged interlocking.

A radiant tube burner, wherein an opening cross section of the tube is virtually divided into four areas with two straight lines as boundaries, the two straight lines being obtained by tilting a minor axis of the oval, which is a shape of the opening cross section, by ±45° with a center of the oval as a center, and a flow rate of primary combustion air injected from primary combustion air nozzles located in the areas containing the minor axis of the oval of the virtually divided four areas is lower than a flow rate of the primary combustion air injected from the primary combustion air nozzles located in the areas not containing the minor axis of the oval the four areas.

The present invention provides an apparatus and a method for operating a cyclone combustion furnace using gaseous fuel.

The disclosure relates to a gas heater assembly (1) for a gas heating process, the assembly (1) comprising: a burner body (4) comprising a burner chamber (6) for burning an injecting fuel (8) and an oxidizing gas (10), which burner chamber (6) is arranged in a cavity (2) of the burning body (4); a first conveying pipe (12) for supplying the injecting fuel (8) to the burner chamber (6); a second conveying pipe (14) for supplying the oxidizing gas (10) to the burner chamber (6); a burner housing (16), comprising a housing wall (25), which is configured to encircle the burner body (4) and to create a first annular channel (18) for a gas (20) in a space (22) between the outside of the burner body (4) and the inside of the housing wall (25) of the burner housing (16); and at least one burner body support (26), which is configured to support and centre the burner body (4) in the burner housing (16), wherein the burner body (4) comprises a flame opening (28) for a burning flame (30), which is configured to heat the gas (20) which passing the first annular channel (18). The disclosure further relates to a system (42) for a gas heating process.

A method for promoting the combustion of a combustible material, improving the power output of a combustion device and prolonging the service life of the combustion device by adding an alkali metal element and / or an alkaline earth metal element into the combustible material, relating to the technical field of combustion supporting. The method is applicable to various combustible materials and various combustion devices. A combustion device, and a fuel for promoting the combustion of a combustible material, improving the power output of a combustion device and prolonging the service life of the combustion device, respectively comprising a combustion device, and a fuel for nuclear fusion and nuclear fission. The method can enable all kinds of combustion devices to be reliably started and efficiently and safely work in any environment.

A combustor for fuel combustion and a combustion method thereof are disclosed. The combustor includes a primary oxidizer and fuel delivery assembly, a secondary oxidizer delivery assembly, and a tertiary oxidizer delivery assembly. The secondary oxidizer delivery assembly and the tertiary oxidizer delivery assembly are provided on the same side as the primary oxidizer and fuel delivery assembly, and the secondary oxidizer delivery assembly is disposed between the tertiary oxidizer delivery assembly and the primary oxidizer and fuel delivery assembly. The present invention combines multi-stage combustion and lean combustion technology, thereby enabling the combustor to have a wide flame adjustment range and realize adjustment of the flame combustion position, flame speed range, flame local atmosphere, and flame length, effectively reducing NOx generation and achieving high heat transfer efficiency.

A furnace heating device comprising one or more radiant tubes that are configured in one or more zones of a furnace chamber; one or more burners that are coupled to the one or more radiant tubes and one or more burner control units; a programmable controller that is configured to determine one or more estimated radiant tube temperatures that respectively correspond to the one or more radiant tubes, generate one or more control signals based on the one or more estimated radiant tube temperatures with respect to a threshold temperature, wherein the one or more control signals instruct the one or more burners to operate in a flame combustion operation or a flameless combustion operation, and provide the one or more control signals to the one or more burner control units to enable flameless combustion at furnace chamber temperatures that are below a minimum temperature for flameless combustion.

The utility model relates to the technical field of boilers, in particular to a compact pulverized coal boiler, which can effectively control the scale of the boiler, comprises a hearth, a steering chamber, an uptake flue and a tail flue, and is characterized in that the side surface of the top of the hearth is directly connected with the steering chamber; the upper portion of a rear wall water cooling wall of the hearth serves as the front portion of an enclosure wall of the steering chamber, and a low-temperature superheater located above the economizer is arranged in the steering chamber.

A system and method are disclosed for improving fuel-air mixing in the combustion chamber of pulse combustors by deflecting the pressurized fuel injected from the one or more fuel injectors at a predetermined angle towards the centerline longitudinal axis of the combustion chamber.