7results about How to "Improve combustion thermal efficiency" patented technology

The present application belongs to the technical field of internal combustion engine, and particularly relates to a kind of alcohol hydrogen fusion engine precombustion chamber system and its control method.Alcohol hydrogen fusion engine precombustion chamber system includes the engine main body with the main combustion chamber and precombustion chamber being communicated with each other, and also includes methanol supply unit, hydrogen production unit, hydrogen delivery control unit, exhaust gas recirculation unit and main control unit;Main control unit collects engine operating parameters and judges current working condition, and adjusts methanol supply path, hydrogen supply path, precombustion chamber working mode, hydrogen production unit heating mode and on-off state of exhaust gas recirculation unit according to working condition.The present application can realize engine full-condition combustion performance optimization without complex auxiliary device, and also considers cold start reliability, high and low load combustion stability and operation energy efficiency, to improve the whole machine operation reliability and transient response capability.

The utility model relates to a kind of gas stove head, including fire seat and first injection pipe, first gas cavity is equipped in fire seat, first gas cavity forms lower gas layer and upper gas layer along by lower to upper distribution, the position of fire seat corresponding lower gas layer is connected with first injection pipe, first injection pipe is communicated with first gas cavity by lower gas layer, lower gas layer and upper gas layer between are equipped with the flow guide surface for guiding airflow from lower gas layer into upper gas layer, the included angle a between flow guide surface and horizontal plane is formed, 85°≤a≤90°, by optimizing the structure of flow guide surface, relative increase the inclination angle between flow guide surface and horizontal plane, mixed gas is diffused in first gas cavity at relatively slow speed under the action of flow guide surface, it is favorable to make mixed gas more fully mixed, to improve the combustion heat efficiency of equipment, reduce the carbon monoxide content generated by combustion.

The utility model relates to the field of combustor discloses an electric flame heating device, including the shell body and be located in the shell body's steady flame disc, the middle position of steady flame disc sets up a first electric flame generator, and the periphery of steady flame disc is provided with a plurality of second electric flame generators around the distribution setting of first electric flame generator, the output end inboard of shell body is provided with a plurality of third electric flame generators around the circumferential direction distribution setting, and each third electric flame generator all is inwards inclined setting.

The utility model provides a kind of flameless infrared radiation combustion stove, and the combustion stove includes furnace body, grate tray and heat accumulator, furnace body is equipped with annular furnace cavity, built-in spiral flow guide passage, bottom is equipped with tangential air inlet, so that combustible gas rotates flow along spiral trajectory, realizes pressure balance by centrifugal force;Grate tray is located in the upper portion of furnace cavity, is equipped with grate hole, inserts straight cylinder shape gas outlet pipe, gas outlet pipe is placed combustion nozzle;Heat accumulator is placed above grate tray, is equipped with heat storage hole corresponding with grate hole, gas outlet pipe and combustion nozzle are inserted therein, and heat accumulator absorbs combustion heat energy and converts into infrared and radiates.The stove realizes pressure balance by the rotating flow of combustible gas in spiral flow guide passage, forms flameless combustion on the upper portion of combustion nozzle after entering gas outlet pipe through grate hole.The heat accumulator converts combustion heat energy into infrared radiation, and simultaneously combines heat conduction and heat convection, efficiently transfers heat energy to the object to be heated.

The invention discloses a boiler combustion intelligent optimization control system based on machine learning, and relates to the field of boiler combustion control, and the system comprises a collection module which is used for collecting fuel characteristics, hearth temperature, flue gas components, air supply amount and auxiliary machine operation parameters in a boiler combustion process, and recording the collected parameters; the extraction module is used for synchronously receiving the original acquisition parameters, preprocessing the parameters to extract core characteristic parameters representing the combustion state and standardizing the core characteristic parameters; according to the method, the future combustion state is predicted based on the time sequence coupling model, the combustion working condition can be comprehensively evaluated by combining the comprehensive evaluation index calculated by the multi-dimensional coefficient, the model continuously iteratively optimizes parameters through self-supervised learning, the combustion state is optimal and the adjustment action is milder through a dual-target optimization adjustment scheme, and the adjustment efficiency is improved. And the combustion heat efficiency and the operation stability of the boiler are greatly improved integrally.

The invention discloses a rotary detonation combustion chamber which comprises a gas and oil supply assembly, an injection assembly and a combustion chamber body. Wherein an annular channel is formed in the combustion chamber body, and the gas supply and oil supply assembly communicates with the gas supply system, can form high-speed airflow to enter the annular channel and communicates with the energy supply system and the injection assembly through the gas supply and oil supply system, so that fuel can enter the injection assembly through the gas supply and oil supply assembly; the high-speed airflow and the fuel jet flow can collide in the annular channel to be subjected to secondary atomization to form a combustible mixture, the combustion chamber body is provided with an igniter used for detonating the combustible mixture so as to form rotating detonation waves, and through the combustion mode of rotating detonation, the combustion efficiency is improved. By means of the self-pressurization structure, airflow expands and accelerates at the downstream of detonation waves and is exhausted from the tail of the combustion chamber in a high-temperature fuel gas mode, the heat efficiency of combustion can be improved through the self-pressurization characteristic of the self-pressurization structure, emission of pollutants such as NOx is reduced, and the self-pressurization structure is more compact.

A gas supply channel is arranged in the middle of a gas supply seat, and a nozzle is arranged below the gas supply channel; the gas distribution disc is provided with a middle disc, a gas distribution channel and an outer ring groove seat; the middle disc is arranged above the gas supply channel at intervals, and the middle disc and the gas supply base are spaced to form a middle gas mixing cavity; the outer ring fire cover is placed on the outer ring groove seat, and an outer ring gas mixing cavity is defined by the outer ring fire cover and the outer ring groove seat; the gas distribution channel is communicated with the middle gas mixing cavity and the outer ring gas mixing cavity; an inner ring fire hole is formed outside the middle disc; the outer ring fire cover is provided with outer ring fire holes. The three-dimensional flow dividing design that the single nozzle is matched with the gas dividing channels is adopted, the limitation that a traditional single-nozzle combustor can only form single-ring flames is broken through, inner-ring independent flames and outer-ring independent flames are synchronously formed through cooperative gas supply of the middle gas mixing cavity and the outer-ring gas mixing cavity, and the combustion heat efficiency is remarkably improved while the structural compactness is kept.