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72results about How to "Improve Radiation Ability" patented technology

High-temperature radiation temperature enhancement device of quartz lamp used for guided missile thermal test

InactiveCN102435099ARaise the heat radiation temperatureWith strengthWeapon testingWater flowRadiation temperature
The invention relates to a high-temperature radiation temperature enhancement device of a quartz lamp used for a guided missile thermal test. The high-temperature radiation temperature enhancement device comprises an interlayer water-cooled quartz lamp heating array, a water-cooled type cooper electrode base, a water flow channel of a lamp wall, a tungsten thermal fuse, a quartz lamp electrode, cooling water, a through water-cooled channel and a metal connecting pipe. A wall surface of the quartz lamp used for heating is designed into an interlayer form, part of the heat quantity on the surface of the quartz lamp can be removed by the cooling water flowing through the water flow channel of an interlayer lamp wall, so that the surface temperature of quartz glass is dropped to below softening temperature 1600 DEG C, an infrared light generated by the tungsten thermal fuse of the quartz lamp can penetrate through a wall surface of a heater of a transparent interlayer water-cooled quartz lamp and the transparent cooling water to radiate outwards. In the high-temperature radiation temperature enhancement device, a radiating capacity of the quartz lamp heating array exceeds the primary use limit temperature 1200 DEG C, and the maximum radiation temperature is increased to 1450 DEG C. Therefore, an effective high-temperature pneumatic thermal test analog method is provided for researching a hypersonic missile with faster flying speed, and the high-temperature radiation temperature enhancement device has an important application value in military engineering.
Owner:BEIHANG UNIV

Oxygen/carbon dioxide combustion technique applied to cement clinker production process

The invention discloses an oxygen / carbon dioxide combustion technique applied to a cement clinker production process. The oxygen / carbon dioxide combustion technique comprises the following steps: cooling a clinker by a first path of air, feeding a first path of high-temperature fume as secondary air into a rotary kiln after clinker cooling, preheating a second path of high-temperature fume by a heat exchange device, introducing an O2 / CO2 gas of a decomposition furnace, and feeding into a waste heat boiler for waste heat power generation; feeding a second path of air into the rotary kiln through a combustor; feeding fume discharged from the tail end of the rotary kiln into a preheater I for preheating a raw material, and feeding fume discharged from the preheater I into the waste heat boiler; feeding fume discharged from the decomposition furnace into a preheater II for preheating the raw material; generating backflow fume of which the CO2 concentration is greater than 95% from the preheater II, mixing a part of the backflow fume with oxygen separated from a third path of air, preheating, feeding the mixed gas as an O2 / CO2 atmosphere for raw material decomposition into the decomposition furnace, and performing purification, dust collection and concentration on the other part of the mixed gas, thereby obtaining CO2 of which the concentration is greater than 99%. Compared with a conventional cement clinker production process, the cement clinker production process disclosed by the invention has the advantage that the emission amount of CO2 is reduced by 60-75%.
Owner:CHINA BUILDING MATERIALS ACAD

High-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler

PendingCN111141028AFully absorb radiation heat transferEnhanced radiation heat transferAir heatersGaseous fuel burnerCombustorAir blower
The invention provides a high-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler. The high-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler comprises a combustor and a heat exchanger, wherein the full-premixed combustor mounted in the center of a boiler top plate consists of a booster fan, a premixing chamber and a water-cooling combustion head; a flame stabilizing pipe and an anti-tempering column of the water-cooling combustion head can realize high-adjustment-ratio water-cooling premixed combustion; the heat exchanger consists of a lap of water-cooling wall and one or more laps of fins uniformly arranged in the peripheral direction by bent edge folding fin pipes; an air blower feedsair into the premixing chamber for fully mixing with gas to enter an inner cavity of a hole plate of the combustion head; the air flows out from a fire hole, and is sprayed out from narrow gaps amongthe water-cooling pipes distributed in the peripheral direction; after the air flows out from the flame stabilizing pipe, the air is ignited to uniformly combust in the peripheral direction and the axial direction, and radiates and releases heat to an inner pipe ring; smoke flushes base pipes and fins of inner and outer ring fin pipes in sequence to reinforce heat exchange; and the smoke downwards flows into a dew bearing disc through gaps between a housing and an outer layer fin pipe, and is exhausted into atmosphere from a smoke outlet. The high-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler is high in combustion load adjustment ratio, compact in heat exchange, low in nitrogen emission and high in heat efficiency.
Owner:XI AN JIAOTONG UNIV +1

Atmospheric gas radiation heating device

The invention discloses an atmospheric gas radiation heating device which comprises a burner, a quartz glass radiant tube and an igniter, wherein the burner comprises a nozzle, an injection tube and a burner head part; the burner head part consists of an inner tube and an outer tube which are concentric, and one end of an annular belt between the inner tube and the outer tube is sealed; the injection tube is communicated with the annular belt; the end of the sealed annular belt of the inner tube is a secondary air inlet, while the other end of the inner tube is provided with an inner flame cover; a corresponding end of the outer tube is provided with an outer flame cover, and a flame hole is formed between the inner flame cover and the outer flame cover; and the inner tube is internally provided with a secondary air conditioning device. The invention has simple structure, convenient mounting, low manufacture and maintenance cost, high burning strength, long service life and large burner load regulation ratio, can meet the requirement of different heating powers to a larger extent and can be widely applied to industrial kilns of the industries of steel, petrochemical industry, machinery, building materials, boilers, waste incineration, and the like.
Owner:ENN CHINA GAS ENVESTMENT

Plasma combustion-supporting Swiss roll combustor

InactiveCN105180183AReduce pollutionSolving the problem of smooth ignition and maintaining combustionIncinerator apparatusCombustion chamberPorous medium
The invention provides a plasma combustion-supporting Swiss roll combustor and belongs to the technical field of low-heating-value gas utilization. The combustor comprises a combustion chamber and a spiral plate type channel. The combustor specifically comprises a combustor shell, a flow guide plate, a porous medium, a gas inflow channel, a gas outflow channel, a discharge device, an ozone addition opening, a thermometer hole, an ignition hole, an observation hole, a metal high-voltage electrode plate, an electrode leading-out wire and an exhaust chimney. The combustor is round or square. The upper end and the lower end of the combustor are sealed through sealing plates. The gas inflow channel and the gas outflow channel are formed in the two ends of the spiral plate type channel. The porous medium is located in the center of the combustion chamber. The inner wall of the combustion chamber is coated with a heat-resisting material. The combustion chamber is wrapped by a heat insulating material. The discharge device and the flow guide plate are located in an inlet of the combustion chamber. The ozone addition opening is formed in the outermost ring of the spiral plate type channel. According to the combustor, the plasma discharge device or an ozone generator and the porous medium material are combined, and the purposes of reducing energy consumption, eliminating poison and the like can be achieved.
Owner:UNIV OF SCI & TECH BEIJING

Decorative material with negative oxygen ion releasing environmentally-friendly and health-care functions and preparation method of decorative board therefrom

The invention belongs to the field of building interior wall decorating materials, and particularly relates to a light-weight, gas-permeable and humidity-regulating composite material for an interiorwall, which is compounded by virtue of unique microporous properties of a diatom material matrix, is healthy and environmentally-friendly, has excellent performance in regulating the humidity of an indoor space (good moisture absorption and moisture release), has high gas permeability, can release negative ions, and have a health-care function, and a preparation method thereof. A decorative material with the negative oxygen ion releasing environmentally-friendly and health-care functions and a decorative board therefrom can be directly cut by using a wallpaper knife, can be directly nailed, can be directly processed by using a woodworking tool plane, can directly replace a sandwich panel, a wood board, a plywood and a simulated wood board in subsequent processing, and can be directly usedfor furniture manufacturing, cabinet combination manufacturing and the like; many problems such as roll stickiness, cracking and low qualification rate of a finished product due to strong adsorption force between diatomite and bentonite in the moulding process of the board are solved.
Owner:北京未来空间美居科技有限公司

GPS (global positioning system) antenna capable of simplifying debugging

InactiveCN102832445AStrong radiation abilityGood frequency responseRadiating elements structural formsEngineeringElectrical conductor
A GPS (global positioning system) antenna capable of simplifying debugging consists of a long conductor (1), a short conductor (2) and a tail end adjusting circuit (3), wherein the long conductor (1) and the short conductor (2) are respectively arranged on two parallel planes and are non-intersected with each other. The long conductor and the short conductor are respectively coiled, bent and engaged in permutation and combination of multiple coiled units and bent units, which are connected in series. The head end of the long conductor (1) is connected with a signal ground end (G) of a radio signal, the head end of the short conductor (2) is connected with the signal end (S) of the radio signal; the tail end of the long conductor (1) is connected with the tail end adjusting circuit (3); and the tail end of the short conductor (2) is suspended. By using an electromagnetic material as a substrate, the design purposes of high radiation property, good frequency response and small size are fulfilled. According to simulation detection, the product is excellent in property, reasonable in shape structure, low in energy consumption, environment friendly, especially beneficial to mass industrial production, low in production cost and very wide in market prospect.
Owner:YUNNAN GALAXY STAR TECH

Novel energy-saving and environment-friendly combustion engine

The invention relates to the field of environmental protection technology and particularly relates to a novel energy-saving and environment-friendly combustion engine, which comprises a muffler, a primary air port, a secondary air port, a nozzle, an igniter, an injector, a sprayer, a plum blossom-type flue brick, a nameplate, a motor, a combustion cylinder, an air pressure switch, a control box and an ignition transformer. The injector and the sprayer are directly connected to form an integral structure. The nozzle and the motor are directly connected and are positioned right in front of the muffler. The nameplate is arranged on the left upper part of an instrument. The igniter is arranged in front of the muffler. The combustion cylinder is directly connected with the ignition transformer and is right above the sprayer. According to the technical scheme of the invention, through reasonably organizing the combustion process, the above combustion engine is more energy-saving, more environment-friendly, higher in combustion efficiency, stable in combustion, good in flame performance, strong in radiation capability, high in heat recovery capability, small in noise, less in amount of noxious gas and smoke, convenient to use, simple in design, low in cost and worth to popularize and use widely during the working process.
Owner:TIANJN TAIFENG XINGYE TECH CO LTD

Oxygen-enriched combustion system for coal gas electricity generation boiler

The invention discloses an oxygen-enriched combustion system for a coal gas electricity generation boiler. The oxygen-enriched combustion system comprises a boiler emergency stop protection system, as well as an oxygen pipeline, an air pipeline, a smoke exhaust pipeline and a coal gas pipeline which simultaneously communicate with a boiler furnace, wherein a coal gas quick cut-off valve is arranged on the coal gas pipeline; an oxygen content analyzer and an induced draft fan are sequentially arranged on the smoke exhaust pipeline; a blower and an air control valve are sequentially arranged on the air pipeline; an oxygen control valve and an oxygen quick cut-off valve are sequentially arranged on the oxygen pipeline; the boiler emergency stop protection system is electrically connected with the coal gas quick cut-off valve, the oxygen quick cut-off valve, the blower, the induced draft fan and the oxygen content analyzer simultaneously; and the oxygen content analyzer can send the oxygen content of boiler exhaust in the smoke exhaust pipeline to the boiler emergency stop protection system in real time, and the boiler emergency stop protection system controls to close the oxygen quick cut-off valve when the oxygen content of the boiler exhaust, received by the boiler emergency stop protection system, is larger than a security set value. The oxygen-enriched combustion system has the advantages that energy saving and environmental protection are achieved and the heat efficiency of the boiler furnace can be improved.
Owner:LIANFENG STEEL (ZHANGJIAGANG) CO LTD

Periodic leaky-wave antenna with highly stable gain based on composite left-right hand structure

The invention discloses a periodic leaky-wave antenna with highly stable gain based on a composite left-right hand structure. The antenna comprises a dielectric plate, a metal transmission band, a metal floor, a feed connector and an impedance matching unit, and the metal transmission band is formed by cascading a plurality of composite left-right hand units which are periodically arranged on a microstrip transmission line; wherein each composite left-right hand unit comprises a metal connecting body, transverse straight grooves, inclined grooves and additional small grooves, a plurality of groups of transverse straight grooves are etched on one side of a metal conveying belt along the length direction, a plurality of metal connecting bodies are arranged on the other side of the metal conveying belt, the additional small grooves are etched between every two adjacent transverse straight grooves, and the inclined grooves are etched on two sides of each group of transverse straight grooves. According to the invention, the open stopband effect of the traditional periodic leaky-wave antenna is eliminated, the attenuation-free scanning in the edge emission direction can be realized, thebeam scanning range is large in the working range, the directivity is strong, the beam gain maintains high stability, and the leaky-wave antenna can be widely applied to the fields of multipoint communication, automobile radar and the like.
Owner:NANCHANG UNIV

External heating type high-quality activated carbon high-efficiency energy-saving environment-friendly rotary activation furnace and application method thereof

The invention relates to an external heating type high-quality activated carbon high-efficiency energy-saving environment-friendly rotary activation furnace and an application method thereof. The external heating type high-quality activated carbon high-efficiency energy-saving environment-friendly rotary activation furnace comprises a rotary furnace barrel, an external heating furnace body, an activated tail gas recovery combustion system and a flue gas recovery heat exchange system, and further comprises a hot water recovery steam generation system, a steam overheating system and an air preheating system. The annular furnace cavity is divided into a plurality of combustion chambers and a smoke collecting cavity, a plurality of gas burners are arranged on the outer circumferential wall ofthe outer heating furnace body corresponding to the combustion chambers, and the rotary furnace barrel is sleeved with a heat radiation heating body. The application method of the activation furnace comprises the following steps: during blow-in production, auxiliary gas and quantitative air are mixed and combusted to indirectly heat the rotary furnace barrel; a carbonized material is fed into thefurnace barrel, and activation reaction is carried out on the carbonized material and auxiliary water vapor to generate activated carbon and activated tail gas; the activated tail gas exchanges heat,is cooled and then is mixed with quantitative hot air for combustion to replace auxiliary gas; and circulating hot water is fed into a tail gas and flue gas waste heat boiler for heat exchange to generate a large amount of water vapor to replace auxiliary water vapor. The rotary activation furnace significantly improves the quality and yield of activated carbon, and is energy-saving and environment-friendly.
Owner:黄炜 +3

Novel chemical fiber cotton

The invention provides novel chemical fiber cotton. The novel chemical fiber cotton comprises, by mass, 15% to 25% of nanosized mesoporous silicon dioxide hollow fibers, 10% to 20% of skin core type low-melting-point polylactic acid fibers and 35% to 70% of nanofibers. Nanometer far infrared ceramic powder is added to a functional adhesive and the blending ratio of a nanometer ZnO material to a nanometer MgO material is 35 / 65. The thickness of the finished product ranges from 2 mm to 6 mm and the weight ranges from 120 g / m<2> to 160 g / m<2>. The internal diameter of each hollow tube of the nanosized mesoporous silicon dioxide hollow fibers ranges from about 0.5 micron to 1 micron, the tube wall thickness is about 0.5 micron, the length of each fiber can reach 50 microns, and the good heat stability is guaranteed through the large specific surface area and the large hole wall thickness. A nanometer material has the advantages of being capable of achieving the special effects of resisting ultraviolet rays and absorbing visible light and infrared rays, resistant to aging, high in strength and tenacity, good in conductive and static shielding effect, high in antibacterial function and deodorization function and adsorption capacity and the like. The finished product is light, thin and soft in texture, excellent in elasticity and higher in heat preservation performance and radiation performance, and the use heat preservation performance and social and economic benefits of the chemical fiber cotton are improved.
Owner:ANHUI LION GOOSE PROD

Stage feedback loudspeaker box

The invention discloses a stage feedback loudspeaker box. The stage feedback loudspeaker box comprises a box body, wherein the contour of the cross section of the box body is shaped like a right trapezoid; two mid-range loudspeakers and two coaxial loudspeakers are arranged on an inclined panel of the box body; a sound amplifying module is arranged on a vertical back plate; the inclination angle of the inclined panel is between 40 degrees and 50 degrees; the width of a top flat plate is between 3cm and 30cm. The stage feedback loudspeaker box provided by the invention has the advantages that the box body adopts an irregular structural design, so that standing waves in the box body can be reduced, and the tone is cleaner; with the top flat plate, a singer can conveniently sit or place his/her feet on the box body, so that the interactivity with the audience is effectively enhanced; the inclined panel is arranged at an angle of 40 degrees to 50 degrees, so as to effectively ensure that the sound axis can be directly oriented to the ears of the singer, and achieve good radiation effects; the two coaxial loudspeakers and the two mid-range loudspeakers not only achieve a large volume, good layering effects and high appealingness, but also achieve an ampler frequency allocation of the loudspeaker box, smooth cohesion among high-frequency tones, middle-frequency tones and low-frequency tones, and a wide sound field, so that the overall tone quality is improved.
Owner:DONGGUAN DONGYUAN AUDIO LIGHTING ENG LTD
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