7results about How to "Shorten ignition time" patented technology

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 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 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 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.

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.