15results about How to "Shorten ignition time" patented technology

The invention relates to the technical field of biomass gasification furnaces, and discloses a downdraft biomass gasification furnace which comprises a support and a gasification furnace sensor, a fire grate segment set is arranged at the top of the support and comprises an upper fire grate segment, a middle fire grate segment and a lower fire grate segment, and the upper fire grate segment, the middle fire grate segment and the lower fire grate segment are arranged on the support. The upper fire grate segment, the middle fire grate segment and the lower fire grate segment each comprise a plurality of fixed fire grate segments and a plurality of movable fire grate segments, and the fixed fire grate segments and the movable fire grate segments are alternately arranged. According to the invention, the plurality of hydraulic rods are used for detecting the reaction intensity of each section according to the gasification furnace sensor to control the material pushing frequency of different sections in the gasification furnace in a segmented manner, and the arrangement number of the upper fire grate segment, the middle fire grate segment and the lower fire grate segment corresponding to the ventilation holes in the single fire grate segment is reduced; the staying time of the material layer in different sections is matched with the reaction intensity, and the water tank synchronously adjusts the cooling rate and the gas inlet amount of the gasifying agent during adjustment in cooperation with the adjusting mechanism, so that the gas conveying quality of the gasification furnace is guaranteed.

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

The present invention discloses a photothermal flare tower in which the chemical energy of combustible gas is complementary to solar energy, and belongs to the technical field of flare towers. A photothermal flare tower in which the chemical energy of combustible gas is complementary to solar energy comprises a flare tower body and a heat exchanger arranged on its surface, a burner is fixedly installed on the top surface of the flare tower body, and a mixer is fixedly installed inside the burner. The photothermal flare tower in which the chemical energy of combustible gas is complementary to solar energy can design the ratio of the first airtight plate and the second airtight plate according to the ratio of air and combustible gas for full combustion in the prior art. At this time, the air leaked from the air outlet and the combustible gas leaked from the combustible gas outlet are mixed in a proportion to each other and enter the interior of the mixing chamber, so that the air and the combustible gas are mixed in a proportion to each other, thereby achieving full combustion of the combustible gas, reducing the waste of combustible gas, and also reducing the pollution to the atmospheric environment, thereby ensuring the quality of the atmospheric environment.

The utility model provides a tubular heating furnace burner assembly with an automatic ignition function, which comprises a main control panel and a plurality of groups of burners, the main control panel is provided with a plurality of groups of burner control and display components, and each group of burner control and display component is respectively connected with the corresponding burner; and each group of combustors comprises a pulse igniter, a thermocouple electromagnetic valve, an ignition probe and a combustor nozzle. After an ignition switch is started, a pulse igniter discharges, an ignition probe forms electric sparks near a burner nozzle, meanwhile, a fuel gas adjusting valve is opened, and ignition can be completed, so that the ignition time is saved, the one-time ignition success rate is increased, and the stability of technological parameters of a heating furnace is guaranteed; fluctuation of technological parameters such as flow, temperature and pressure of a heating furnace system caused by long-time unsuccessful ignition is avoided, and unqualified product quality of the device is influenced. By adding the thermocouple induction needle, the thermocouple electromagnetic valve can be cut off immediately when the heating furnace flames out, and safe and stable operation of the device is protected.

The invention relates to the technical field of energetic materials, and discloses an aluminum / molecular perovskite composite energetic material and a preparation method thereof. Wherein the metal aluminum powder is 15-50 parts; 85 to 50 parts of a molecular perovskite energetic material; metal aluminum powder is replaced with nano aluminum powder with the particle size of 100 + / -5nm, so that the ignition time of the energetic material is shortened, meanwhile, the invention discloses a preparation method, a volatile organic solution is used as a dispersing agent, and the molecular perovskite energetic material and the nano aluminum powder are sequentially dispersed into a solvent through ultrasound, so that the energetic material is prepared. And the organic solvent and the mixed composite energetic material are separated in a standing and drying manner, so that the production safety of the energetic material is improved.

The present invention provides a window-breaking bullet launched by a drone, comprising a bullet body and a striking unit fixed to the front end of the bullet body, the striking unit comprising a striking hammer, a firing pin seat and a firing pin fixed to the firing pin seat, the firing pin seat being fixed to the striking hammer, and the firing pin and the striking hammer being eccentrically arranged. The present invention utilizes the firing pin, and when it just contacts the window, it can utilize the impact force of the bullet body itself and the contact point of the firing pin to destroy the window. By eccentrically arranging the firing pin and the striking hammer, when the firing pin contacts the window, the bullet body deviates to one side, and utilizes the volume of the bullet body and the impact force generated when the bullet body is fired to destroy the window over a large area, so as to facilitate people to enter and exit.

The application discloses a carbon block and a preparation method thereof. The carbon block comprises a burn-resistant inner core and a fast-burning shell. The burn-resistant inner core is provided with a bottom surface and a peripheral surface except the bottom surface. The fast-burning shell is wrapped on the peripheral surface of the burn-resistant inner core. In the ignition process, the flame can first achieve rapid and three-dimensional ignition at the fast-burning shell, so that the peripheral area of the burn-resistant inner core can be uniformly heated from the outside in the ignition stage. The volatile components gradually separated out in the heating process of the burn-resistant inner core can contact and participate in the combustion of the fast-burning shell in the high-temperature combustion state, realizing the continuous preheating of the burn-resistant inner core. Meanwhile, the fast-burning shell is not arranged between the bottom surface of the burn-resistant inner core and the bearing element, so that the high-temperature flame generated by the fast-burning shell will not directly act on the bearing element in the normal temperature state, thereby effectively relieving the sharp temperature rising phenomenon caused by local high temperature in the initial stage of the carbon block ignition, and reducing the thermal shock risk borne by the bearing element.

The invention relates to the technical field of scramjet engines, solves the technical problems that a scramjet engine wide-area structure is high in combustion difficulty and flame stabilization difficulty, and particularly relates to a hydrogen peroxide catalytic decomposition gas atomization injection concave cavity integration module and an injection flame stabilization enhancement method. Liquid hydrogen peroxide is decomposed into high-temperature oxygen and water vapor by adopting a catalytic decomposition module, then the high-temperature oxygen and the water vapor are mixed with kerosene in a decomposition gas pipeline to form kerosene which is aerated and atomized by the high-temperature oxygen and the water vapor, the kerosene is transversely sprayed at the upstream of a concave cavity through a gas atomization kerosene spraying hole, and gas atomization kerosene transverse jet flow is formed in a supersonic combustion chamber; therefore, the combustion efficiency is improved. The oxygen-enriched jet flow for enhancing the combustion performance is formed in the supersonic combustion chamber, the ignition performance of liquid kerosene can be improved, meanwhile, the atomization particle size can be reduced, the jet flow penetration depth can be increased, the fuel gas mixing efficiency can be improved, and the supersonic combustion flame stabilizing range of the liquid kerosene can be widened.

The invention relates to the technical field of coal new energy, and particularly discloses a fire coal catalyst. The fire coal catalyst is prepared from the following raw materials in parts by weight: 12 to 22 parts of diethanolisopropanolamine, 25 to 35 parts of triethanolamine, 10 to 20 parts of diesel oil, 1 to 5 parts of desulfurizer and 1 to 5 parts of combustion-supporting filler, the combustion-supporting filler comprises the following raw materials: activated carbon, ethanol and lanthanum oxide. According to the diesel oil disclosed by the invention, all components in the catalyst can be uniformly dispersed, and diethanolisopropanolamine and triethanolamine can instantaneously shorten the ignition time, so that a combustion-supporting effect is achieved; the lanthanum oxide is dissolved by the ethanol, so that the lanthanum oxide is loaded on the activated carbon, and the formed combustion-supporting filler not only has a better combustion-supporting effect, but also can reduce the emission of oxynitride by matching with the desulfurizing agent, so that the obtained coal-fired catalyst not only has higher thermal efficiency, but also has smaller pollution to the environment.

The biomass gasification and waste incineration coupled combustion system relates to the field of biomass waste gasification disposal, and the first combustion chamber, the throat area and the second combustion chamber of the waste incineration device are sequentially arranged from bottom to top and are communicated, the upper end of the second combustion chamber is provided with a flue gas outlet capable of supplying flue gas to a chimney, the first burner unit is opposite to the first combustion chamber, and the second burner unit is opposite to the throat area; the flue gas recirculation system has a circulating inlet communicated with the flue gas outlet, a first circulating outlet and a second circulating outlet communicated with the first combustion chamber; the reaction cavity and the gasification gas outlet of the biomass gasification device are communicated, the reaction cavity comprises a redox area, the gasification gas outlet is communicated with the fuel inlet of the first burner unit and the fuel inlet of the second burner unit, and the flue gas inlet pipe is communicated with the redox area and the second circulating outlet at both ends; the biomass gasification and waste incineration are deeply coupled and complementarily utilized, the biomass gasification efficiency is improved, the nitrogen oxide emission is reduced, and the cost is reduced.

The application discloses a satellite model predictive control method based on convex mixed integer programming and belongs to the technical field of spacecraft orbit optimization and control, and solves the problems that traditional methods depend on continuous control input, are inconsistent with discrete characteristics of a satellite propulsion system, do not fully consider the discrete nature of a thruster, are difficult to consider accuracy and efficiency when dealing with complex maneuvers, and cannot effectively optimize fuel consumption. The application first establishes a non-convex optimal control model of a mission satellite, then convexes non-convex terms and introduces integer decision variables, then solves a benchmark trajectory of a convex optimization problem without collision avoidance constraints, finally solves a convex optimization problem with collision avoidance constraints to obtain an optimal control sequence, and realizes fuel optimization and collision avoidance. The application can uniformly deal with discrete switch decision of a satellite thruster and continuous trajectory optimization. The application can realize fuel optimization, reduce cost, accurately control the thruster and improve orbit adjustment accuracy.

The utility model provides a kind of commercial energy-saving gas stove burner, including annular support platform, outer furnace core, inner furnace core, fire cap, ignition needle and gas integrated input assembly.Outer furnace core is supported at annular support platform bottom and is equipped with air inlet pipe in bottom, inner furnace core is supported in outer furnace core, and air inlet hole assembly is equipped in inner furnace core side wall upper portion.Fire cap is equipped in inner furnace core bottom, and gas integrated input assembly is equipped in air inlet pipe, and upper end is located in inner furnace core bottom fire cap cover area, and lower end is in air inlet pipe outside, for inputting fire gas and main gas, and is connected with main gas quantity regulating valve.Air inlet pipe is connected with air supply device, and constant flow rate air can be input to air cavity.Fire cap outer wall has gas hole, and fire gas is input into inner furnace core by it and is ignited by ignition needle to form fire, and main gas is also input by it and mixed with air input by air inlet hole assembly to form mixed burner and is ignited by fire.The gas stove has the characteristics of fast ignition, energy saving and high efficiency, stable and reliable structure.

The present application discloses a flame retardant polyurethane material and its preparation method and application, including a polyurethane matrix and a flame retardant additive; the polyurethane matrix is ​​obtained by polymerization of polyester diol and isocyanate; the flame retardant additive includes flame retardant silicone and flaky material; the flaky material is selected from at least one of flame retardant expandable graphite and two-dimensional nano-sheet TiO2 or flaky silica; the flame retardant expandable graphite, flaky silica, and two-dimensional nano-sheet TiO2 are surface modified; the isocyanate is selected from at least one of TDI-80, TDI-65 and TDI-100. By utilizing the synergistic effect of flame retardant silicone and nanocomposite, the polyurethane molecular chain structure and the hybridization of nanomaterials are regulated, so that the prepared polyurethane foam has the excellent characteristics of uniform pores, high strength and good flame retardant performance, and has broad application prospects in the fields of pipeline insulation, storage tank insulation, and wall insulation.

In order to overcome the deficiency of the existing local oxygen-increasing combustion-supporting integrated system, the application provides a comprehensive energy-saving emission-reducing production-increasing efficiency-improving type local oxygen-increasing precise combustion-supporting integrated system and method for industrial furnace.The system comprises four parts of an oxygen source, a precise oxygen-increasing combustion-supporting system, an electric control system and a monitoring and protection system.The local oxygen-increasing precise combustion-supporting integrated system provided by the application is suitable for various industrial furnaces.The system is simple to install, easy to operate and maintain, and some can be installed without stopping the furnace, and has better comprehensive energy-saving emission-reducing production-increasing efficiency-improving effect.

The invention discloses a gas fuel technology field, and is used for an industrial gas fuel burner assembly, comprising a burner body, a combustion-supporting gas conduit is fixedly provided at the center of the burner body, a sleeve is fixedly provided on the outer side of the combustion-supporting gas conduit, and a plurality of sliding guide rails are fixedly provided inside the sleeve, and combustion-supporting gas is injected into the burner body through the combustion-supporting gas conduit, and a switch is turned on to turn on the power supply of the electromagnet, and the electromagnet is energized to generate magnetic force, which acts on the permanent magnet. The permanent magnet drives a lifting installation plate to move upward under the action of the magnetic force, and the lifting installation plate slides upward on the surface of the sliding guide rail through sliders on both sides, and drives a flip plate to rotate and flip through a hinge transmission rod. The flip plate rotates, so that the igniter rotates toward the combustible gas nozzle, and at the same time, the second energized contact block contacts the first energized contact block, and the igniter is energized to ignite, which can greatly improve the success rate of ignition and save ignition time.