79results about How to "Efficient combustion" patented technology

The invention provides a low-load combustion optimization control system for a unit, and the system comprises a sensing network module which collects key parameters of the unit in a combustion process; the data preprocessing module is used for preprocessing the collected key parameters; the index analysis module is used for analyzing the energy balance deviation degree, chemical balance and combustion uniformity evaluation indexes of the current unit based on the preprocessed key parameters; the control strategy execution module is used for carrying out threshold value judgment on the result of each index and correspondingly executing preset energy balance, chemical balance and combustion uniformity strategies; the feedback regulation module is used for acquiring the executed feedback signal and performing new index analysis and cyclic regulation to form a closed-loop feedback mechanism; energy balance, chemical balance and combustion uniformity in the combustion process are analyzed and controlled, so that combustion stability and combustion efficiency are improved, pollutant emission is reduced, the service life of equipment is prolonged, and meanwhile, the adaptability of a unit to a power grid is enhanced.

The high-temperature-rise combustion chamber comprises a sudden expansion diffuser, a cartridge receiver, a combined air atomizing nozzle and a flame tube and can solve the problems that in the prior art, a high-temperature-rise combustion chamber of a small and medium-sized turbojet engine is low in fuel oil supply pressure and fuel oil flow is increased, so that fuel oil atomization is poor, the combustion efficiency is low, and the combustion efficiency is low. And the service life of the flame tube is difficult to meet the requirement due to great reduction of the cooling air quantity and increase of the cooling air temperature. An overall layout form of fuel oil radial grading and axial grading is innovatively adopted, and swirlers used for assisting fuel oil atomization all adopt a beveling hole mode; space compound angles are innovatively adopted for cooling holes in the flame tube, and the overall layout form of different sizes and different hole pitches is adopted in different areas. Fuel oil atomization quality and efficient combustion under various working conditions can be improved, the service life of the flame tube is prolonged, and meanwhile the machining process of the swirler is simplified due to the fact that the swirler adopts an inclined hole mode.

The invention belongs to the field of automobile engine energy saving, and particularly relates to an engine energy saving device and method for producing hydrogen through ultrasonic water mist and mineral particles, the device comprises a special water storage tank, an ultrasonic water mist generator and micro hydrogen production mineral particles, and the special water storage tank is divided into an ultrasonic water mist generation chamber and a mineral particle hydrogen production chamber through a permeation partition plate; the ultrasonic water mist generator is placed at the position 3 mm-5 mm below the liquid level of the ultrasonic water mist generating chamber, and water is atomized through external power supply. Micro-hydrogen production mineral particles are placed at the bottom of the mineral particle hydrogen production chamber and react with water to generate hydrogen, part of hydrogen is dissolved in water, and part of hydrogen is stored in the gas storage chamber above the liquid level. An air outlet is formed in the top of the special water storage tank and connected with an engine air inlet pipe, water mist and hydrogen enter an air cylinder along with engine suction to participate in acting, and therefore the redundant fuel injection amount is eliminated, and heat transfer loss in the cylinder is reduced. The heat efficiency of the automobile engine is improved, knocking is restrained, the incomplete combustion phenomenon is reduced, and then fuel consumption and harmful gas emission are reduced.

The invention discloses a built-in heat exchange double fluidized bed reaction device, which is used for a biomass raw material hydrogen production process, and comprises: a gasification chamber, which is of a cylindrical structure and is provided with a conical surface at the bottom, and the conical surface is provided with a hole for introducing bubbling fluidizing air; the combustion chamber is of a tubular structure and is arranged in the gasification chamber in a sleeved mode, the bottom of the combustion chamber is in an open state, and the combustion chamber is arranged in the conical surface area and used for introducing vertically-upward combustion-supporting air; the material returning units are arranged at the upper part of the reaction device, are uniformly arranged along the circumferential direction and are used for carrying the high-temperature bed material particles from the combustion chamber to an annular gasification area outside the combustion chamber and mixing the high-temperature bed material particles with biomass raw materials in the gasification area to produce hydrogen; the material returning unit is provided with a loosening chamber and a material returning chamber, and a bottom plate of the loosening chamber is obliquely arranged towards the material returning chamber. Through the built-in design of the double fluidized beds, the feeding pipe and the return feeder are prevented from being exposed at room temperature, and the heat loss of the reactor is reduced; and meanwhile, the device can provide enough regeneration time for the bed material under the condition of keeping a relatively high solid conveying rate.

A built-in parallel type solid fuel-liquid oxidizing agent mixing engine comprises an oxidizing agent conveying-jetting integrated device, a front sealing head, a solid fuel with a shell, a spraying pipe and an ignition device. One surface of the front sealing head is connected with the oxidant conveying-jetting integrated device through screws, and the other surface of the front sealing head is connected with the solid fuel with the shell; one surface of the front sealing head is connected with the oxidant conveying-jetting integrated device through screws, and the other surface of the front sealing head is connected with the solid fuel with the shell; the front sealing head is provided with a first sealing groove; the first sealing groove is provided with a first sealing ring; the combustion chamber shell is provided with a second sealing groove; and the second sealing groove is provided with a second sealing ring. The system structure is simplified, and the weight of the engine is reduced; and meanwhile, powerful conditions are provided for efficient and uniform combustion of fuel-rich gas and an oxidizing agent, and therefore the energy release efficiency of the engine is improved.

The utility model discloses a wind volume self -adaptation heat accumulation type organic waste gas treatment integrated machine relates to heat accumulation type organic waste gas treatment technical field, including no. The utility model discloses a solenoid valve, wind speed and volume sensor, temperature sensor and control module are set up, so that wind speed and volume sensor can carry out real -time monitoring to the wind speed and volume of inside flow of no.

The invention discloses a flue gas combustion device, comprising a flue gas combustion chamber, a flue gas chamber, an oxygen distribution chamber and a dust chamber are arranged at the bottom of the flue gas combustion chamber, the flue gas chamber is divided into a flue gas chamber 1 and a flue gas chamber 2 by a flue gas chamber partition, the tops of the oxygen distribution chamber, the flue gas chamber 1 and the flue gas chamber 2 are connected with the inside of the flue gas combustion chamber, the flue gas chamber 1 is connected with the upper end of the pyrolysis chamber of the garbage pyrolysis gasification furnace through a flue gas pipe 1, the flue gas chamber 2 is connected with the upper end of the drying chamber of the garbage pyrolysis gasification furnace through a flue gas pipe 2, and the flue gas chamber 2 is connected with the upper end of the storage chamber of the garbage pyrolysis gasification furnace through a flue gas pipe 3. The invention draws flue gas from the pyrolysis chamber, the drying chamber and the storage chamber of the garbage pyrolysis gasification furnace respectively through the flue gas pipe 1, the flue gas pipe 2 and the flue gas pipe 3, and then mixes and burns in the flue gas combustion chamber, and completely burns with excess oxygen, the temperature in the furnace is stable and high temperature, and toxic and harmful gases such as dioxins are basically burned out, which effectively ensures that the flue gas meets the standard and is cleanly discharged.

The invention discloses a staged combustion method, which is suitable for a VOCs (volatile organic compounds) tail gas treatment system, and comprises the following steps: introducing waste gas, fuel gas and air into a Venturi premixing cavity according to a set proportion for full premixing to form uniform combustible mixed gas; under the low-load condition, only the inner ring combustor is started to work, so that the combustion power and the energy consumption are reduced; under the condition of high load, the inner ring combustor and the outer ring combustor are started at the same time, so that the high-flow and high-concentration waste gas treatment requirements are met; besides, temperature, pressure and flow parameters of the combustion system are monitored in real time, fuel gas and air flow are automatically adjusted through a control algorithm, dynamic optimization of the combustion efficiency is achieved, compared with the prior art, fuel consumption can be greatly reduced, the energy-saving effect is achieved, meanwhile, the national environmental protection standard is met, and the method is worthy of popularization. And VOCs tail gas treatment is more efficient and economical, and wide market applicability is achieved.

The invention discloses the technical field of gas turbines, particularly relates to a nozzle combustor applied to a combustion chamber of a gas turbine, and aims to solve the problems that in the prior art, the gas turbine is difficult to stably combust at low emission under high-temperature and wide-load working conditions, and meanwhile, the cooling efficiency of a nozzle is relatively low; the nozzle structurally comprises an on-duty stage nozzle, a main combustion stage nozzle, a fuel rectifying plate and a nozzle upper cover plate, wherein the main combustion stage nozzle is positioned on the outer side of the on-duty stage nozzle; a mixture sprayed by the main combustion stage nozzle directly penetrates through a combustion area of the nozzle combustor; the fuel rectifying plate and the nozzle upper cover plate are wrapped to form an upper fuel cavity, the on-duty stage nozzle and the main combustion stage nozzle are communicated with a combustion area of the nozzle combustor through the nozzle upper cover plate, and fuel in the upper fuel cavity is in direct contact with the nozzle upper cover plate for heat exchange.

The gas-fired boiler energy-saving device comprises a boiler body, a gas introduction mechanism, a flue gas heat recovery mechanism, a flue gas treatment mechanism and other key components, a combustion chamber and a water storage cavity are formed in the boiler body, a water inlet is formed in the top of the boiler body, and L-shaped supporting legs are installed at the bottom of the boiler body, so that the structural stability is ensured; the fuel gas introduction mechanism comprises a fuel gas inlet, a breather pipe, a fuel gas nozzle, a fan and an air outlet, stable supply and efficient combustion of fuel gas are ensured, the flue gas heat recovery mechanism recovers flue gas heat through an air outlet pipe, a heat recovery chamber, fins and a water outlet, the heat efficiency is improved, and the flue gas treatment mechanism is provided with a treatment chamber, a filter screen and an activated carbon adsorption net. In addition, the partition supporting plate and the steam chamber are arranged on the inner wall of the boiler body, the steam outlet is formed in the top of the boiler body, efficient collection and output of steam are achieved, the energy-saving and environment-friendly targets of the gas boiler are achieved, and the gas boiler is suitable for commercial and industrial heat supply systems.

The utility model relates to waste gas treatment equipment in production of menthanediol, which belongs to the field of waste gas treatment and comprises a mounting seat, a heat treatment mechanism for combustion and heat cycle of waste gas is arranged on the left side of the upper surface of the mounting seat, and a purification mechanism for multi-effect filtration and purification of the waste gas is arranged on the right side of the upper surface of the mounting seat. According to the waste gas treatment equipment in the production of the menthanediol, the heat treatment mechanism, the igniter and the ignition spray head are arranged to cooperatively work and used for igniting waste gas in the combustion furnace and starting the combustion process, a first fan extracts the waste gas from the combustion furnace through an exhaust pipe, and a gas supply pipe sends hot gas generated by combustion into a heat circulation system; waste gas generated after heating combustion enters the heat circulation pipe, the heat circulation pipe can be used for recycling and recycling waste heat generated by combustion to heat the steam boiler, the energy utilization efficiency is improved, steam generated by the steam boiler can be used for other industrial processes, and multi-stage utilization of heat energy is achieved.

The present application relates to the technical field of boiler combustion optimization, and specifically to a method and system for optimizing boiler combustion operation based on digital twins, the method comprising: real-time collection of temperature, pressure and pollutant concentration at each moment of boiler combustion; selecting multiple moments before each moment, recording them as historical moments of each moment; determining the combustion influencing factor at each moment; determining the combustion efficiency factor at each moment; based on the combustion efficiency factor, using an integrated learning algorithm for prediction, determining the trend of changes in the predicted concentration of pollutants, and the digital twin model feeds back the boiler state to the control system to control the boiler combustion temperature. The present application can improve the accuracy of the prediction of pollutant emission concentration, thereby controlling the boiler combustion temperature.

The invention relates to the technical field of fly ash decarbonization, and discloses a fly ash fluidized bed combustion decarbonization device, comprising a fly ash silo, a blower, an electric heater, an air powder classifier, a spiral feeder, a furnace, an ash cooler, a cyclone separator, a return valve, an air heat exchanger, a dust collector, an induced draft fan and a chimney. According to the difference in specific gravity and particle size between unburned ember carbon and burned ember carbon in the fly ash, the fly ash can be carried by hot air into the air powder classifier for screening, and fly ash with larger particles and higher carbon content falls to the bottom of the air powder classifier and enters the next step, so that only a part of the fly ash needs to be reburned, thereby improving the work efficiency of reducing the carbon content of the fly ash, and at the same time increasing the proportion of the carbon content in the fly ash burned in the furnace, so that the fly ash in the furnace can be stably burned and release a large amount of heat, thereby improving the utilization rate of the fly ash.

The submerged staged combustion injector for the small molecule gel oxidizing agent comprises a cylindrical inlet, a conical section, a streaming section, a straight section, an axial connecting section and a radial connecting section which are connected in sequence, the conical section, the streaming section and the straight section are each of a double-layer structure. The outer walls of the conical section, the streaming section and the straight section are sequentially connected to form an outer wall, and the two ends of the outer wall are connected with the cylindrical inlet and the axial connecting section respectively; the inner walls of the conical section, the streaming section and the straight section are sequentially connected to form an inner wall, one end of the inner wall is closed, and the other end is connected with the outer wall; an oxidant chamber is formed by a cavity between the outer wall and the inner wall and the cylindrical inlet; a cavity enveloped by the inner wall forms a secondary fuel combustion chamber; a fuel gas channel is arranged in the conical section and is communicated with the fuel secondary combustion chamber; and an injection hole array is formed in the inner wall. The residence time and the turbulence degree of an oxidizing agent and fuel in the combustion chamber are increased, staged combustion is achieved, and the combustion efficiency of the engine is improved.

The utility model relates to the technical field of combustion equipment, in particular to a preheater adopting staged combustion. According to the technical scheme, the preheater adopting staged combustion comprises an air inlet pipe, a shell, an air return pipe and a guide plate, the guide plate is arranged in the shell, the air inlet pipe is arranged at one end of the shell, an air outlet pipe is arranged at the end, away from the air outlet pipe, of the shell, and a through hole is formed in the end, close to the air outlet pipe, of the shell in a penetrating mode; an annular gas distribution pipe is installed at the end, close to the gas inlet pipe, of the interior of the shell, a spray head is installed on the annular gas distribution pipe, the annular gas distribution pipe is communicated with the through hole through a gas return pipe, and an annular combustor and foamed ceramic are installed in the shell. According to the utility model, the utilization rate of heat in the tail gas after combustion can be increased, and the combustion of fuel can be more sufficient.

The invention belongs to the technical field of aerospace power plasma enhanced combustion, and aims to solve the problems of poor discharge stability and short service life of existing plasma actuators. It specifically relates to a three-dimensional rotating sliding arc plasma actuator device, comprising: an isolation support, which is provided with a first inlet and an eccentric inlet; an actuator shell composed of a first column segment, a second column segment, and a third column segment; the inner wall of the second column segment is provided with a raised thread line; the inner wall of the third column segment is provided with a cathode electrode; one end of the central electrode is connected to the anode electrode, and the other end is cantilevered to the inside of the third column segment, and a tapered electrode is provided on the outer side thereof, and a sliding arc is generated at the minimum distance between the tapered electrode and the cathode electrode; in a working state, a preset gas is injected from the eccentric inlet and then spontaneously rotates and flows, and blows the sliding arc after passing through the raised thread line and the tapered electrode to form a three-dimensional rotating sliding arc; the invention can realize enhanced combustion, and greatly improve the discharge stability, uniformity and service life of the device.

The utility model discloses a garbage incinerator hearth heat -proof heat preservation optimization structure belongs to garbage incineration equipment technical field, aims at solving traditional incinerator heat loss big, furnace wall temperature is high, the low temperature of secondary air leads to the problem such as high operating cost, low combustion efficiency, including inner furnace wall, outer furnace shell, both constitute double -deck structure, and the inner furnace wall front arch, rear arch is water cooled wall, and the vertical section is equipped with secondary air through -hole, and below is the furnace grate, the outer furnace shell and the inner furnace wall form cavity heat -proof, and its arch shell is equipped with the air extraction bin and through -hole, and the air extraction bin communicates cavity, and the through -hole corresponds with secondary air through -hole, and the fan passes through the air extraction pipe, air supply pipe and will cavity hot air as secondary air send into hearth. Meanwhile, water cooled wall and arch shell are matched through hanging block, positioning column, hanging groove, positioning groove, and are fixed with bolt, ensure that the connection is firm, and the structure realizes efficient heat -proof heat preservation and waste heat recovery, and optimizes secondary air supply, improves combustion efficiency, reduces pollutant emission and operating cost.

The invention relates to the technical field of garbage treatment equipment, in particular to an efficient-combustion household garbage flue gas secondary combustion chamber device and process, the efficient-combustion household garbage flue gas secondary combustion chamber device comprises a gas inlet chamber, a pyrolysis gasification furnace, a flue gas preheating mechanism and a secondary combustion mechanism, one end of the gas inlet chamber is connected with the pyrolysis gasification furnace, and the other end of the gas inlet chamber is provided with a combustion chamber for flue gas combustion; a flue gas preheating mechanism is arranged in the gas inlet chamber and is used for preheating combustion flue gas; a secondary combustion mechanism is arranged in the combustion chamber and used for secondary combustion of smoke. The secondary combustion mechanism comprises a first chamber, a second chamber, a third chamber and a heat storage assembly, the first chamber is a flue gas mixing chamber, the second chamber is a first combustion chamber, and the third chamber is a second combustion chamber. The problem of continuous combustion caused by unstable gas phase of pyrolysis flue gas can be effectively solved, multiple times of heating of the pyrolysis flue gas are achieved through the optimized design of the heating assembly, and the secondary combustion efficiency and stability are remarkably improved.

The invention discloses a two-section type built-in double fluidized bed reaction device, which is used for a biomass raw material chemical looping hydrogen production process, and each section of built-in double fluidized bed comprises: a gasification chamber which is of a cylindrical structure and is provided with a conical surface at the bottom, and the conical surface is provided with a hole for introducing bubbling fluidizing air; the combustion chamber is of a tubular structure and is arranged in the gasification chamber in a sleeved mode, the bottom of the combustion chamber is in an open state, and the combustion chamber is arranged in the conical surface area and used for introducing vertically-upward combustion-supporting air; the material returning unit is arranged at the middle upper part of the reaction device, is of a hollow disc-shaped structure, is arranged outside the combustion chamber in a sleeving manner, is used for carrying high-temperature bed material particles from the combustion chamber to an annular gasification area outside the combustion chamber and mixing the high-temperature bed material particles with biomass raw materials in the gasification area to produce hydrogen, and is provided with a loosening chamber and a material returning chamber; the two sections of built-in double fluidized beds are connected in series and are used for introducing the hydrogen-containing synthesis gas prepared by the first section of double fluidized bed into the combustion chamber of the second section of double fluidized bed.

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 small-displacement flare gas smoke abatement device for a large elevated torch. The small-displacement flare gas smoke abatement device comprises a barrel assembly, a center fire supporting assembly, a silencing cover assembly, an injection smoke abatement assembly and a built-in igniter incandescent light assembly. The cylinder assembly is communicated with the flare gas outlet; the exhaust end of the center fire supporting assembly extends into the barrel assembly and sprays air to the center of the barrel assembly. The silencing cover assembly covers the outer side wall of the lower portion of the barrel assembly, and a mounting interval is reserved. The air inlet end of the injection smoke abatement assembly is contained in the installation interval. The air outlet end of the injection smoke abatement assembly extends into the barrel assembly and extends to the top of the barrel assembly. After the device is used, a flare system is slightly improved, effective combustion of flare gas under the working condition that the flow is lower than 1000Nm < 3 > / h can be realized, the use cost of steam is reduced, the cost can be reduced by more than 78%, and no black smoke is generated during combustion, so that the flare gas under the working condition is fully combusted.

The utility model provides a bilateral cyclone combustion chamber which comprises a fixed installation cylinder, one side of the fixed installation cylinder is connected with a combustion assembly, the other side of the fixed installation cylinder is connected with a cyclone assembly, the cyclone assembly comprises an air supply fixing plate, the air supply fixing plate is fixedly connected with an air supply air outlet cylinder, and the air supply air outlet cylinder is fixedly connected with an air outlet. A first air outlet groove and a second air outlet groove are formed in the air supply outlet barrel, a first air guide plate and a second air guide plate are fixedly connected to the air supply outlet barrel, a fixed mounting plate is fixedly connected to the outer side of the fixed mounting barrel, an air storage cover is connected to one side of the fixed mounting plate, and an air supply fan is fixedly connected to the outer side of the air storage cover. The first air guide plate and the second air guide plate guide air to form cyclone, so that air can be more effectively supplied to the combustion assembly, the air volume is increased, the speed is increased, meanwhile, the sprayer is effectively prevented from achieving smooth ignition of oil, the temperature in the combustion cavity is guaranteed, auxiliaries are effectively heated, and the working efficiency of the sprayer is improved.

This invention discloses a fuel atomization system suitable for the combustion chamber of a regenerative micro gas turbine, comprising: a T-shaped evaporator, a swirling oil-gas duct, a coaxial atomizing nozzle, an air intake pipe, and a fuel line protection sleeve; the T-shaped evaporator, the swirling oil-gas duct, and the coaxial atomizing nozzle are arranged coaxially, the air intake pipe is eccentrically connected to the side wall of the coaxial atomizing nozzle and can introduce high-pressure gas from the section before the regenerator after the compressor, the initially atomized mixed oil and gas enters the swirling oil-gas duct for further atomization and then evaporates and is ejected through the T-shaped evaporator, the fuel line protection sleeve is coaxially arranged on the outside of the swirling oil-gas duct and the coaxial atomizing nozzle and can avoid the direct impact of high-temperature backflow gas on the coaxial atomizing nozzle. This invention can significantly optimize fuel atomization quality, shorten the combustion chamber length, improve combustion efficiency, and improve the uniformity of combustion chamber outlet temperature distribution by adding a coaxial atomizing nozzle and an air intake pipe upstream of the traditional evaporator.

The application discloses a sea-air amphibious fuel injection system and method based on a methanol-activated aluminum-water system fuel, the fuel injection system comprising a needle injection device, the needle injection device having coaxially arranged inner and outer flow channels and a flow regulating unit; the inner wall of the inner flow channel and the inner wall of the outer flow channel have a plurality of inner flow channel bosses and a plurality of outer flow channel bosses arranged alternately along the axial direction, which are used for generating local vortex when the fuel flows; the method comprises: a magnetic stirring device stirring the fuel in a high-concentration Al / MeOH fuel storage tank; a mixing device proportionally mixing the fuel output by the high-concentration Al / MeOH fuel storage tank and a methanol MeOH fuel storage tank; a fuel injection system receiving and injecting the mixed methanol-activated aluminum fuel and introducing seawater or air as an oxidant; the application can enhance mixing through vortex, adapt to seawater / air dual oxidants, adjust the fuel ratio to improve the combustion efficiency, and realize sea-air amphibious high-efficiency power.

The present invention relates to a diesel-methanol dual-fuel system and a control method thereof for a medium- and high-speed marine diesel engine. The diesel-methanol dual-fuel system comprises: the original marine diesel engine and the original fuel system, and a diesel ECU; and further comprises: a methanol supply system, an alcohol injector assembly, an intake air temperature control system, a methanol electronic control system, and a DOC catalytic oxidizer directly installed on the basis of the original engine; the present invention applies the diesel-methanol combined combustion technology on the marine diesel engine to effectively achieve efficient combustion and greatly improve the thermal efficiency of the engine under medium and large load conditions.

The embodiment of the invention provides a flue gas self-adaptive adjusting method based on oxygen content. The method comprises the steps that a pre-designed oxygen content-load curve of a gas combustion device is collected; stable operation data of the gas combustion device are obtained, and the real-time oxygen content in the smoke collection device in the stable operation data is determined; substituting the load data in the stable operation data into the oxygen content-load curve, determining the designed oxygen content, and comparing the oxygen content difference between the real-time oxygen content and the designed oxygen content; and whether the comparison result is within a preset adjustment range or not is detected, and when the oxygen content difference is within the preset adjustment range, the smoke backflow proportion of the gas combustion device is correspondingly adjusted based on the oxygen content difference.

The invention relates to a sandwich structure diaphragm coating material, a preparation method and application thereof and a lithium ion battery, and relates to the technical field of lithium ion batteries, the preparation method comprises the following steps: taking a bismuth-containing alloy as a raw material, and adopting a chemical dealloying method to prepare nano metal bismuth particles; and depositing carbon nanotubes on the nano metal bismuth particles by adopting a vapor deposition method, an atomic layer deposition method, a spray pyrolysis method or a thermal chemical vapor deposition method to obtain Bi (at) CNT, and the like. According to the invention, a chemical dealloying method, a vapor deposition method, a hydrothermal synthesis method and a self-assembly method are adopted to finally obtain the Bi (at) CNT-Al2O3 (at) PDA composite material similar to a sandwich structure. The material has important application potential in the lithium ion battery, can effectively inhibit the growth of lithium dendrites, and improves the performance and safety of the battery.

The present invention relates to an energy-gathering hood for a stove and a gas stove using the energy-gathering hood for a stove. The energy-gathering hood comprises an annular hood body, a annular cavity is formed in the center of the hood body, and the energy-gathering hood comprises an outer hood located at the periphery of the hood body, a first cavity between the outer hood and the hood body is connected with the annular cavity and the outside, and serves as a first air-supplementing cavity, the outer hood has a first air inlet connected with the first air-supplementing cavity, and the gas stove also comprises a bottom plate located under the outer hood, a second cavity between the bottom plate and the outer hood is connected with the annular cavity and the outside, and serves as a second air-supplementing cavity. Compared with the prior art, the advantage of the present invention is that the outer hood and the bottom plate can form a "partition" of the energy-gathering hood for a stove, and secondary air passes through the separation effect of the outer hood and the bottom plate, so that both the inner and outer rings can be fully burned. The present invention also provides a gas stove using the above energy-gathering hood for a stove, which can avoid the secondary air between the inner ring and the outer ring from influencing each other, thereby realizing efficient combustion of the inner ring fire cover.

The utility model relates to the technical field of boilers, in particular to a split type biomass hot water boiler which comprises a boiler body, a hearth installed on the lower portion in the boiler body, a fire grate installed at the bottom of the hearth, a feeding hopper installed at one end of the hearth, and an upper boiler barrel and a lower boiler barrel which are arranged on the upper portion of the boiler body respectively. The upper boiler barrel is communicated with the lower boiler barrel through a plurality of convection banks, a plurality of ash falling pipes are installed at the bottom, close to the lower boiler barrel, of the outer wall of the boiler body, an ash collecting hopper is installed at the bottom ends of the ash falling pipes, one end of the boiler body is connected with a smoke pipe, and the outer end of the smoke pipe is sequentially connected with an energy saver and an air preheater. According to the split type biomass hot water boiler, through the unique split type design, the overall structure is simplified, the transportation and installation convenience is greatly improved, and therefore the maintenance cost is effectively reduced. In addition, the characteristics of biomass fuel are fully utilized in the combustion process of the boiler, efficient and clean combustion is achieved, the heat efficiency is remarkably improved, and emission of harmful substances is reduced.

The invention relates to an organic solid waste treatment system and a treatment process thereof, comprising: a fermentation device, wherein the fermentation device is used for fermenting solid waste; a feeding device, wherein the feeding device comprises a feeding hopper and an extrusion wheel, wherein the extrusion wheel is located at the outlet of the feeding hopper, and wherein the extrusion wheel is used for chopping and extruding the solid waste to reduce the water content in the solid waste; a drying device, wherein the drying device comprises a dehydration part for dehydration and a heating and drying part for drying the dehydrated solid waste; and a garbage incinerator, wherein the garbage incinerator is used for incinerating solid waste, and a conveying device is arranged between the feeding device and the drying device, and between the garbage incinerator and the drying device; organic matter is fermented by the fermentation device, and biogas in the fermentation is used for power generation, thereby obtaining a large amount of clean energy while harmlessly treating the organic matter, and reducing the harm to the environment in the solid waste treatment.