17results about How to "Easy to ignite" patented technology

The application discloses a hot water boiler based on a porous medium burner, which comprises a hot water boiler shell, wherein the hot water boiler shell comprises a boiler barrel, the outer side of the boiler barrel is provided with a water jacket for storing water, and the inside of the boiler barrel is fixedly provided with a porous medium burner; the inner cavity of the porous medium burner comprises a combustion reaction zone, the two ends of the combustion reaction zone are provided with anti-backfire areas, the two ends of the porous medium burner are provided with mixed gas inlets, the mixed gas inlets are connected with mixed gas input pipelines, one end of the mixed gas input pipelines extends out of the hot water boiler shell and is connected with a gas fuel supply device; the porous medium burner is internally provided with an ignition device, mixed gas flows into the combustion reaction zone from the mixed gas input pipelines and is ignited by the ignition device, heat generated by combustion of the mixed gas heats water in the water jacket, flue gas is discharged from the combustion reaction zone through the pores of the porous medium of the porous medium burner and is discharged into a flue gas treatment mechanism connected with the hot water boiler shell, the gas utilization rate is improved, and the heat diffusion speed is slowed down.

The invention relates to the technical field of high-activity metal powder, in particular to high-environmental-stability aluminum-lithium alloy powder and a manufacturing method and application thereof.The high-environmental-stability aluminum-lithium alloy powder comprises, by weight, 1.0-10.0 wt.% of Li, 1.0-10.0 wt.% of Al, 1.0-10.0 wt.% of Ti, 1.0-10.0 wt.% of Ti, 1.0-10.0 wt.% of Ti, 1.0- 0.1 to 5.0 wt.% of Zr; 0.01 to 2.0 wt.% of Ti; 0.05 to 3.0 wt.% of RE; wherein RE is a rare earth element and at least comprises Y, Ce, La or a combination thereof, the sum of Zr, Ti and RE does not exceed 8.0 wt.%, and the balance is Al and inevitable impurities. The method has the effect of improving the use stability and the machining consistency of the aluminum-lithium alloy powder.

This invention relates to the field of moxibustion technology and discloses a combined moxibustion device, including a combined moxibustion chair, a combined moxibustion box, and a purifier. The combined moxibustion chair includes a backrest with a moxibustion box mounted on it, and a box-shaped ruler is provided on the edge of the moxibustion box. The combined moxibustion box includes a U-shaped shell with box-shaped rulers on both sides. A U-shaped track and a walking mechanism that moves along the U-shaped track are provided inside the U-shaped shell, and the walking mechanism drives the moxibustion cylinder to move. The purifier includes a cylinder sealed at both ends, with several heat exchange tubes axially passing through the cylinder. Activated carbon is filled between the outside of the heat exchange tubes and the cylinder. Both the box-shaped ruler and the box-shaped ruler include a sliding groove. The sliding groove is uniformly connected to slats, with adjacent slats in contact. A spring connects the slats to the bottom of the sliding groove. This invention uses an elastic ruler to ensure that the ruler is always in contact with the patient and to ensure sealing. Through the U-shaped track and the walking mechanism, large-area moxibustion can be performed with good results. It utilizes the heat energy of flue gas, reducing energy waste.

This invention belongs to the field of iron and steel metallurgy technology, specifically relating to a staged combustion system and process for a gas boiler. The system includes a burner connected to the gas boiler, a combustion-supporting gas structure, and a combustion-supporting air structure. The burner includes a combustion stabilizing plate, located at the front end of the burner and connected to the gas boiler. The combustion stabilizing plate has three layers of staged ignition units evenly arranged around its center: an inner layer, a middle layer, and an outer layer. The middle layer ignition unit includes multiple externally mixed combustion nozzles, where combustion-supporting air and gas mix outside the combustion stabilizing plate. The outer layer ignition unit includes multiple internally mixed combustion nozzles, where combustion-supporting air and gas mix inside the combustion stabilizing plate. The combustion-supporting gas structure provides fuel to the burner, and the combustion-supporting air structure provides combustion-supporting air to the burner. This invention effectively achieves complete combustion of the gas, reduces nitrogen oxide production, and provides a stable flame, demonstrating good performance in terms of safety, environmental protection, and efficiency.

The present application relates to the technical field of boiler combustion and discloses a multi-stage coal powder burner, which comprises an outer combustion cylinder, an inner combustion cylinder, an adjuster and a combustion stabilizer, the inner combustion cylinder is arranged inside the outer combustion cylinder, a channel is formed between the outer combustion cylinder and the inner combustion cylinder, the adjuster is connected with the outer combustion cylinder, the adjuster is used for guiding mixed gas flow, the mixed gas flow can be divided into a first-stage gas flow flowing through the inner combustion cylinder and a second-stage gas flow flowing through the channel, the adjuster is used for adjusting the flow of the first-stage gas flow and the second-stage gas flow, the combustion stabilizer is connected with the inner combustion cylinder, the combustion stabilizer is provided with a flame spout, the flame spout is arranged in the inner combustion cylinder and is used for spouting a flame to ignite the first-stage gas flow and the second-stage gas flow step by step. The multi-stage coal powder burner of the present application can adapt to different coal types to realize rapid ignition and stable and sufficient combustion.

This invention relates to a biomass gasification system and method with dust removal function, including a gasifier, a burner, a raw material supply module, and a dust collection device. The raw material supply module is used to transport pulverized green waste or other biomass raw materials to the gasifier for gasification to generate biomass fuel gas. The inlet of the dust collection device is located near the outlet of the raw material supply module, and is used to extract dust entrained during the process of the raw material falling into the gasifier. The dust includes sawdust, glue fragments, and other lightweight combustible particles. The outlet of the dust collection device is connected to the oxygen supply path of the burner, and is used to introduce the dust into the burner to mix and burn with the biomass fuel gas. This invention, by constructing a closed-loop path of "dust extraction-reburning," can significantly reduce coking in the gasifier, improve gasification efficiency and burner temperature rise rate, achieve efficient recovery and utilization of dust energy, and enhance the overall operational stability and thermal output efficiency of the system.

This utility model discloses a long plasma processing chamber structure, relating to the technical field of ion processing chamber devices. It includes a main chamber with three interconnected cavities inside. Three integrated plates are provided on the top surface of the main chamber. Weight-reducing holes are provided at the upper and lower ends between adjacent cavities, and a light-passing shaft fixing hole is provided in the middle between adjacent cavities. This utility model, through the cooperation of the collecting plate and the burner pressure plate, facilitates the simultaneous spraying of ions in different directions, enabling rapid object processing and improving the device's object processing capability. The cooperation between the high-voltage line inlet and the cavity facilitates the ignition of the internal mixed gas, allowing for better control of ion spray and improving the device's precise control over object processing. This device enhances both object processing capability and ion spray control.

The application discloses a diesel oxidation catalyst for reducing N2O emission and a preparation method thereof. First and second catalytic coating layers of the catalyst are continuously coated on a carrier in sections, a third catalytic coating layer is located on the upper layer of the first catalytic coating layer, and a fourth catalytic coating layer is located on the upper layer of the second catalytic coating layer. The first and second catalytic coating layers are used for purifying HC / CO pollutants and oxidizing NOx into NO2. The third noble metal active component of the third catalytic coating layer is composed of Pt or a mixture of Pt and Pd, and the ratio of Pt / Pd is 5:1-1:0. The fourth noble metal active component of the fourth catalytic coating layer is one or more of Pt, Pd, Rh and Ru. The third catalytic coating layer is used for reducing the selectivity of the DOC catalyst to N2O when oxidizing NH3 and the selectivity to N2O when the HC-SCR reaction is performed. The fourth catalytic coating layer adopts a coating layer with N2O decomposition capacity, and the N2O selectively generated in the upstream section is decomposed into N2. The catalyst coating layers are mutually cooperative, have basic DOC catalytic performance, and can reduce N2O emission.

The present application relates to the technical field of engine, and provides a centrifugal atomizing nozzle with preposed vortex, which comprises a heat shield, a nozzle body and a vortex assembly. The heat shield is internally provided with a cavity, and the side wall of the heat shield is provided with a first through hole and a second through hole, which are communicated with the cavity to form a channel; the nozzle body is partially arranged in the cavity, and the outlet end of the nozzle body is communicated with the outside through the second through hole; the vortex assembly is arranged in the channel and located between the first through hole and the second through hole, and is used for forming gas turbulence and gas vortex. The present application solves the defect that the atomizing effect of the existing atomizing nozzle on fuel is limited, and realizes a centrifugal atomizing nozzle with preposed vortex assembly. After the airflow passes through the vortex assembly, the airflow is rotated, the fuel is atomized, and the atomizing performance, ignition performance and flame stability of the combustion chamber of the aero-engine are improved.

The utility model discloses a mosquito-repellent incense convenient to ignite, which belongs to the field of daily necessities and comprises a mosquito-repellent incense main body, an extending part is integrally formed at the end of the mosquito-repellent incense main body, extends towards the direction far away from the mosquito-repellent incense main body and is smoothly connected with the mosquito-repellent incense main body, and a combustion-supporting piece is sleeved on the extending part. The extension part is additionally formed at the end part of the mosquito-repellent incense main body, so that after the mosquito-repellent incense main body is produced, an operator can sleeve the combustion-supporting part on the extension part, the combustion-supporting part comprises an ignition layer of cotton cloth dip-dyed wax oil, the combustion-supporting part can be easily ignited, the ignited combustion-supporting part can continuously burn, and the extension part of the mosquito-repellent incense main body is ignited; and the use process of the mosquito-repellent incense is facilitated.

The afterburner hydrogen-kerosene dual-fuel concave cavity supporting plate flame stabilizer comprises a plurality of supporting plates evenly arranged in an outer culvert casing, concave cavities are formed in the sides, away from gas incoming flow, of the supporting plates, the concave cavities are closed through hydrogen injection pieces, the hydrogen injection pieces are provided with splitter plates stretching into the concave cavities, and the splitter plates are connected with the outer culvert casing. The supporting plate is provided with an air entraining inlet penetrating through the air entraining flow channel and an exhaust outlet penetrating through the exhaust flow channels, the supporting plate is provided with a main combustion stage kerosene injection pipe and an on-duty stage kerosene injection pipe which extend into the air entraining flow channel, and the side of the supporting plate is provided with a low-speed backflow area. The main combustion stage kerosene nozzle is located in a low-speed backflow area. Combustion of double fuels of hydrogen and kerosene in the afterburner is achieved, on one hand, the working efficiency of the gas compressor is improved, and combustion is promoted; on the other hand, kerosene serves as an afterburner on-duty stage, hydrogen serves as a working stage, hydrogen ignition is facilitated, and the afterburner can be stably started.

The invention relates to the technical field of engine equipment, and discloses an unmanned aerial vehicle engine with a heating component, the unmanned aerial vehicle engine comprises a crankcase and a plurality of cylinder bodies fixed on the two sides of the crankcase, an air inlet channel is fixed on the crankcase, a crankshaft is rotatably installed in the crankcase, the central axis of the crankshaft is perpendicular to the central axis of the cylinder bodies, and the heating component is fixed on the cylinder bodies. A piston is arranged in each cylinder body in a sliding mode, and a connecting rod is rotationally connected between the piston and the crankshaft; a ventilation channel and an exhaust channel are arranged on the side wall of the cylinder body, the ventilation channel is communicated with the interior of the crankcase, and a heating assembly with one end extending into the ventilation channel is fixed to the cylinder body. The heating assembly comprises a connecting shell and a heat conduction rod fixed in the connecting shell. The heat conduction rod extends into the ventilation channel to preheat gas entering the cylinder body, so that fuel oil can be fully atomized to facilitate ignition, and an engine can be easily started in a low-temperature environment.

The application provides a single W coated oxide loaded boron fuel and a preparation method. The oxide loaded boron fuel is Bi2O3 / B or V2O5 / B. The surface layer of the single W coated oxide loaded boron fuel is a single W film. The inner layer is B. The middle layer between the W film and B is Bi2O3 particles or V2O5 particles. The application adopts an atomic layer deposition method to deposit a single metal W film on the surface of Bi2O3 / B and V2O5 / B to anchor the Bi2O3 and V2O5 particles, and to prevent the agglomeration and growth of the Bi2O3 and V2O5 particles at high temperatures. The deposition of W in the application makes the ignition of the composite fuel easier, and can increase the heat release of the composite fuel. The preparation method adopted in the application has high control precision, is easy to realize industrialization, and shows a good application prospect in the field of high-energy solid fuel modification.

The application relates to the field of gasification furnaces, and discloses an ignition burner, a burner device and a gasification furnace. The ignition burner comprises an igniter, an inner tube and an outer tube. The igniter comprises an ignition end. The inner tube comprises a fuel cavity. The igniter and the inner tube are provided with a fuel channel. The inner tube comprises a communication tube, a mixing tube and a flame stabilizer arranged in sequence along an axial direction. The ignition end is located on the side of the mixing tube away from the communication tube. The outer tube comprises a tube body and a distribution structure. The tube body comprises an air passage cavity, a mixing cavity and a fire outlet in sequence along the axial direction. The distribution structure is located between the air passage cavity and the mixing cavity and is located between the tube body and the inner tube along the radial direction. The distribution structure comprises a distribution hole communicating the air passage cavity and the mixing cavity. The mixing tube, the flame stabilizer and the ignition end are all located in the mixing cavity. The mixing tube is provided with a mixing hole. The fuel channel communicates with the mixing cavity through the mixing hole. The stability of the ignition burner is improved under the working condition with a larger load.

The present application provides a kind of snail shape primary combustor capable of igniting and burning in burner, including short cylindrical shell, high-temperature-resistant heat-insulating side cover, igniter, primary air pulverized coal gas flow injection inlet, arc bottom U-shaped expansion channel, wall surface necking pulverized coal concentration weir, flue gas and gasification gas outlet and base;The bottom of short cylindrical shell is base, and high-temperature-resistant heat-insulating side cover is arranged on one end surface of short cylindrical shell and connected therewith;Primary air pulverized coal gas flow injection inlet is arranged on one side of the bottom of the side of short cylindrical shell, and flue gas and gasification gas outlet is arranged on the other side of the bottom of the side;Wall surface necking pulverized coal concentration weir is arranged on the inner wall of short cylindrical shell on the side of primary air pulverized coal gas flow injection inlet, and arc bottom U-shaped expansion channel is arranged on the inner wall of short cylindrical shell on the side of flue gas and gasification gas outlet;Igniter is arranged at the outlet position of arc bottom U-shaped expansion channel.

This utility model belongs to the technical field of moxibustion fumigation boxes, specifically a moxibustion fumigation box, including a moxibustion box. The back of the moxibustion box is hinged to a lid, and a replacement slot is provided on one side. A guide plate is fixedly connected to the inner wall of the moxibustion box. Through the transmission mechanism, the positioning pin can be easily changed from a horizontal to a vertical position when the moxibustion box is pulled out, facilitating the insertion and ignition of the moxibustion. This increases the ignition space, preventing contact with other substances during ignition. Before moxibustion, the moxibustion box is pulled out. During this process, the transmission block and positioning pin rotate, turning the positioning pin vertically, allowing the moxibustion to be inserted and ignited. The moxibustion box can then be pushed back into the moxibustion box through the replacement slot. During this process, the transmission block, through the positioning pin, causes the moxibustion to turn horizontally, allowing the moxibustion box to be placed on the moxibustion site for moxibustion.

This utility model discloses a biomass co-firing burner, relating to the field of biomass co-firing power generation technology. It includes a central air duct, a biomass primary air duct, an inner secondary air duct, an elbow, a pulverized coal concentration separation device, a pulverized coal dilute phase primary air duct, a pulverized coal dense phase primary air duct, a middle secondary air duct, an outer secondary air duct, a secondary air diffuser and a middle secondary air cyclone separator, a pulverized coal flame stabilizer, a pulverized coal dilute phase primary air duct cyclone separator, an inner secondary air cyclone separator, a biomass flame stabilizer, an igniter, and a pulverized coal concentration separation adjustment rod. The air ducts, from the center outwards, are: central air duct, biomass primary air duct, inner secondary air duct, pulverized coal dilute phase primary air duct, pulverized coal dense phase primary air duct, middle secondary air duct, and outer secondary air duct. This utility model fully utilizes the advantages of biomass fuel—high volatile content and easy ignition—by igniting the biomass first, significantly reducing ignition costs.