343results about "Combustion chambers" patented technology

Combustion systems and associated methods are disclosed herein. In some embodiments, a combustion system comprises a first combustion zone, a second combustion zone downstream of the first combustion zone, and a heat module thermally coupled to the first combustion zone and / or second combustion zone. The first combustion zone is configured to (i) receive and combust preheated air and a first fuel and (ii) generate a first exhaust gas, and the second combustion zone is configured to (i) receive and combust the first exhaust gas and a second fuel and (ii) generate a second exhaust gas. The first exhaust gas can have a first excess air and the second exhaust gas can have a second excess air less than the first excess air. The heat module can comprise a thermionic converter or another heat-to-electricity converter able to generate a power output.

The application relates to a direct-flow combustor and swirl combustor cooperative combustion device and method, and belongs to the technical field of tangential circle boiler combustion technology. In order to solve the problems of poor stable combustion effect of a coal power unit only relying on pulverized coal combustion at 20%-30% rated load, reduced denitration efficiency during low-load operation, and unstable combustion caused by coal quality deviating from the design value, the application relies on the direct-flow primary air and direct-flow secondary air of a direct-flow combustor, the stable combustion cavity of a self-help stable combustion combustor, and swirl inner secondary air, so that a center backflow area is formed in the center of a swirl combustor, as a stable ignition heat source, high-concentration pulverized coal is heated, a flame formed by the self-help stable combustion combustor is ignited, a direct-flow pulverized coal combustor primary air powder flame is ignited, external flame combustion-supporting technologies such as micro-oil or plasma are not used, and the stable combustion effect of the coal power unit only relying on pulverized coal combustion at 20%-30% rated load is realized. The application is mainly used for improving the stable combustion effect of a boiler during work.

Processes and apparatuses for heating process fluid in a furnace. Fuel to the furnace is either hydrocarbons or hydrogen. The fuels may be sent to different furnaces or be sent at different times to the same furnace. Furnaces that are configured to receive both types of fuels may have different exhaust paths. An exhaust path for hydrocarbon fuel flue gas includes a carbon capture process zone.

This invention relates to a high-efficiency co-combustion device and method for a direct-flow burner and a swirl burner, within the field of tangential boiler combustion technology. To address the problem of tangential boilers failing to operate stably at 15% or lower rated loads, and the issues of nozzle overheating and burnout due to low primary air velocity in the direct-flow burner, as well as pulverized coal blockage in the pipes, this application utilizes a co-combustion method combining a direct-flow burner and a swirl burner. By introducing a system to increase the air velocity and temperature of the direct-flow burner and a supplementary air system for the swirl burner, the direct-flow primary air velocity is increased, thereby enhancing the direct-flow primary air ejection capacity. This allows for adjustment of the shape and size of the central recirculation zone and prevents nozzle overheating and burnout due to low air velocity in the duct. Simultaneously, increasing the temperature of the direct-flow primary air and the self-regulating combustion burner's primary air increases the pulverized coal temperature at the boiler inlet, strengthening initial ignition and burnout of the pulverized coal. This application is primarily intended to improve the stable combustion effect of boilers operating below 15% of rated power.

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.

A heating device comprises a thermally-conductive outer tube, and a combustor arranged to combust air and gaseous hydrogen input to the device and introduce resulting combustion products into a first end of the outer tube. The device includes an igniter arranged to ignite the air and gaseous hydrogen. Combustion products produced by the combustor flow from the combustor to an output of the device along a flow path such that they are in contact with the internal surface of the outer tube over at least a portion of the flow path. Apparatus for heating a flow of hydrogen comprises a conduit for conducting the flow of hydrogen from a principal input port to a principal output port, the apparatus further comprising the heating device located at least partially within the conduit between the principal input port and the principal output port.

The invention relates to a device for supporting at least two radiant heating tubes (3, 3') in a furnace chamber (2) of an industrial furnace, wherein each radiant heating tube (3, 3') is connected at one end to a burner and held against a first furnace wall of the furnace chamber (2), and wherein the free closed end of the radiant heating tubes (3, 3') projects into the furnace chamber (2). According to the invention, the device has a connecting element (7) with which at least two radiant heating tubes (3, 3') can be connected transversely to the axial direction (A). The connecting element (7) has a projection (9) that extends in the axial direction (A) of the radiant heating tubes (3, 3') and which is configured to rest in a holder (10) in the furnace chamber (2) in the axial direction. The invention further comprises an industrial furnace with a device according to the invention and a holder (10) configured to support the device in the furnace chamber (2).

To provide a heating device configured so that it can prevent a member for partitioning hydrocarbon and exhaust in a heat exchange part from corroding due to the hydrocarbon.SOLUTION: A heating device for hydrocarbon to be thermally decomposed into carbon and hydrogen includes: a burner; and a heat exchange part which, while partitioning exhaust discharged from the burner and the hydrocarbon, transfers heat from the exhaust to the hydrocarbon. The burner is configured to combust fuel with an air ratio of less than 1.SELECTED DRAWING: Figure 1

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.

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 hydrogen chloride loop fuel reaction is designed and configured for turbine / generator combination which can be used for automotive propulsion or as a standalone electrical generation or for auxiliary equipment. A method for providing a hydrogen chloride loop fuel reaction includes creating hydrogen chloride fuel in a sealed furnace vessel, wherein at start up, the sealed furnace vessel is vacuumed out and hydrogen and chlorine are injected into a burner and ignited resulting in the hydrogen chloride fuel in an exhaust stream of the sealed furnace vessel; and looping the hydrogen chloride fuel leaving the sealed furnace vessel in the exhaust stream of the sealed furnace vessel.

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.

To provide a combustion control method of a burner capable of suppressing the generation of NOx and soot.SOLUTION: The combustion control method of a burner comprises a primary combustion step of mixing combustion gas supplied from a gas nozzle with primary mixed air supplied from a primary mixed air feed port to combust the mixture, and a secondary combustion step of mixing the combustion gas after the primary combustion step with secondary mixed air supplied from a secondary mixed air feed port to combust the mixture. The method further includes a premixed air mixing step of mixing the combustion gas with premixed air according to the flow rate of the combustion gas in the gas nozzle before the primary combustion step.SELECTED DRAWING: Figure 1

A method for combusting fuel in stages by feeding combustion air (28) into a burner tube (12). A first fuel quantity is fed to form a primary flame (24) in the burner tube. A second fuel quantity is fed downstream to form a main flame front (26). The main flame front (26) stabilizes downstream of the burner tube (12) and is spaced apart from the burner tube (12). The fuel feed is designed such that the primary flame (24) burns at a stoichiometric ratio greater than 1.5, in particular greater than 2.0.

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

A burner apparatus and method of operating the burner apparatus include a burner housing, and a group of fuel and air swirlers maintained by the burner housing, with the group of fuel and air swirlers supplied by a common fuel and air source. The fuel and air can be directed to one or more of the fuel and air swirlers at a time. Each fuel and air swirler among the group of fuel and air swirlers can mix the fuel and the air, resulting in a combustible mixture of the fuel and the air downstream of the group of fuel and air swirlers. The burner apparatus be implemented as a low NOx multi-port burner apparatus.

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).

To provide a thermal power generation method that can decrease the amount of carbon dioxide discharged therefrom, without requiring forcible injection of carbon dioxide present in exhaust of a thermal power station into the ground.SOLUTION: The thermal power generation method utilizing the combustion of an organic fuel and an inorganic fuel according to the present invention, with the inorganic fuel being an inorganic matter that can be combusted using oxidized carbon gas as combustion supporting gas, a hydrogenated inorganic matter with at least a portion thereof being hydrogenated, or a mixture of an inorganic matter and a hydrogenated inorganic matter, is characterized in that the inorganic fuel is combusted using oxidized carbon gas present in exhaust gas generated by the combustion of the organic fuel, as combustion supporting gas, and the carbon present in the oxidized carbon gas is solidified.SELECTED DRAWING: Figure 1