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48results about How to "Reduce heat radiation loss" patented technology
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Spherical cavity type solar heat absorber with inwardly concave glass cover
InactiveCN102322694AImprove capture abilityNot easy to spillSolar heating energySolar heat devicesGlass coverEngineering
The invention discloses a spherical cavity type solar heat absorber with an inwardly concave glass cover. The heat absorber is mainly used for collecting sunlight and converting the sunlight into heat energy in a butterfly type solar high-temperature heat utilization system. The heat absorber mainly comprises a heat exchange coil pipe, the inwardly concave glass cover, an outer shell, an inner shell, a vacuum layer, a reflective wind shield and a heat conductive fluid. Different from the traditional opening type heat absorber and the cavity type heat absorber with the glass window at the cavity opening, the cavity type heat absorber disclosed by the invention is the opening type spherical heat absorber with the inwardly concave glass cover, therefore, the cavity type heat absorber not only has the light capturing capacity of the opening cavity type heat absorber but also has low heat loss of the cavity type heat absorber with the glass window at the cavity opening; meanwhile, the cavity type heat absorber is provided with the reflective wind shield, therefore, the capturing on deviated light can be strengthened, and the heat radiation on the inner wall and the convection heat transfer loss resulted from external natural wind can be reduced; and the cavity type heat absorber comprises the vacuum layer between the inner shell and the outer shell, therefore, the lost heat throughthe shells can be effectively reduced.
Owner:SOUTH CHINA UNIV OF TECH
Solar water purifier based on interface solar photo-thermal conversion
ActiveCN111302423AGuaranteed uptimeReduce maintenance costsSolar heating energyGeneral water supply conservationThermal insulationSolar water
The invention discloses a solar water purifier based on interface solar photo-thermal conversion, which comprises a solar interface evaporator and a distilled water collector, the solar interface evaporator comprises an open water storage tray and a light absorber with high photo-thermal conversion efficiency, the light absorber is of a double-layer structure and is formed by compounding an upper-layer photo-thermal conversion material and a lower-layer thermal insulation material, and a dust-free cloth is arranged between the upper-layer material and the lower-layer material. During use, it needs to be guaranteed that the dust-free cloth can continuously make contact with the liquid level in a water storage disc, so that it is guaranteed that enough water is conveyed to the surface of thelight absorber to guarantee continuous evaporation. Only solar energy is used as driving energy, other energy sources are not consumed, meanwhile, the problem of replacement of a filter element of aconventional water purifier is avoided, and the device has the advantages of being portable, low in price, high in water purification efficiency and the like and can be stably applied to seawater desalination, sewage treatment and outdoor drinking water purification for a long time.
Owner:ANHUI UNIVERSITY
Energy-saving furnace body of polycrystalline silicon reduction furnace
InactiveCN102145891ATemperature controlEasy maintenanceChemical industrySilicon compoundsMetallurgyThermal radiation
The invention discloses an energy-saving furnace body of a polycrystalline silicon reduction furnace and a method for controlling the inner wall temperature of the furnace body. The furnace body comprises a furnace body heat insulating barrel, a stainless steel bolt, a furnace body outer wall surface, a furnace body inner wall surface, a newly-added inner wall and a newly-added heat insulating layer, wherein the stainless steel bolt is fixed on the furnace body inner wall surface in a welding way; and the newly-added inner wall is fixed on the stainless steel bolt. Compared with the conventional reduction furnace, the reduction furnace has the advantage that: a heat insulating layer is additionally arranged in the reduction furnace. By adopting the invention, the problem of energy waste caused by difficulty in polishing of the conventional furnace body inner wall and a poor polishing effect is solved, and the thermal radiation loss of the reduction furnace is reduced. The energy-saving furnace body has a simple structure and a good energy-saving effect, and is convenient to operate.
Owner:TIANJIN UNIV
Rotary kiln liner structure and laying method
InactiveCN106595314AImprove integrityExtended service lifeLinings repairMonolithic liningsRadiation lossInsulation layer
The invention belongs to the technical field of rotary kilns, in particular to a rotary kiln liner structure and a laying method. The rotary kiln liner structure is characterized in that prefabricated members are laid on the inner wall of a kiln body of the rotary kiln in a spaced manner along the circumferential direction, casting materials are cast in gaps between the adjacent prefabricated members along the circumferential direction, fireclay insulating refractory materials are inserted into the prefabricated members, and anchoring pieces are arranged in the prefabricated members. With the adoption of the laying method that the prefabricated members with the anchoring pieces are vertically laid and act as a framework and the casting materials are cast in the gaps between two rows of prefabricated members, the integrity of a kiln liner of the rotary kiln is improved, and the improvement of service life of the rotary kiln is facilitated; a heat insulation layer is laid below a working liner of the rotary kiln, so that the insulation ability of the kiln liner of the rotary kiln is improved, heat radiation loss through heat radiation of the kiln liner of the rotary kiln is reduced, the heat utilization efficiency of the rotary kiln is improved, and energy consumption of the rotary kiln is reduced.
Owner:PANZHIHUA GANGCHENG GROUP
Hierarchical cavity type solar heat absorber and heat exchange system
ActiveCN102003696AEnsure safetyReduce the difficulty of runningSteam generation heating methodsFrom solar energyRadiation lossHeat flow
The invention discloses a hierarchical cavity type solar heat absorber which comprises a solar reflector and heat absorbers, and is characterized in that the heat absorbers comprise an independent primary heat absorber and an independent secondary heat absorber, namely a primary heat absorber with an evaporation heating surface and a secondary heat absorber with an overheating heating surface, wherein the evaporation heating surface and the overheating heating surface are connected through a steam pocket. The invention has the beneficial effects that as condensers and the heat absorbers are arranged in a targeted manner, the heat-flow density can be effectively distributed, the safety of the heat absorbers is ensured and the operation difficulty is reduced; the tube wall thickness of the heat absorbers can be properly increased so as to improve the pressure rating of a working medium and the unit efficiency; and the condensers are arranged in groups and the heat-flow density of each part in a heat receiver is controlled within a reasonable range so that temperature near the heat receiver can be reduced and the solar heat radiation loss after focusing is reduced.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
Refrigeration apparatus
InactiveUS20110005269A1Reduce power consumptionReduce the temperatureCompression machines with non-reversible cycleFluid circulation arrangementEngineeringIntercooler
A refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, a usage-side heat exchanger and an intercooler. The compression mechanism has compression elements arranged so that refrigerant discharged from a first-stage compression element is sequentially compressed by a second-stage compression element. The intercooler is connected to an intermediate refrigerant tube arranged and configured to draw refrigerant discharged from the first-stage compression element into the second-stage compression element. The intercooler is arranged and configured to cool the refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element. The intercooler and the intermediate refrigerant tube and are arranged and configured to perform wet prevention control when a heat source temperature of the intercooler or an outlet refrigerant temperature of the intercooler is equal to or less than a saturation temperature of the refrigerant fed from the first-stage compression element to the second-stage compression element.
Owner:DAIKIN IND LTD
Vacuum heat collector
PendingCN106032941AReduce heat radiation lossSimple structureSolar heating energySolar heat devicesRadiation lossEngineering
The invention discloses a vacuum heat collector comprising a housing, a U-shape heat collecting tube, and a heat absorbing plate; the housing comprises a facing-light surface and a back-light surface and is provided with a vacuum suction nozzle; the U-shape heat collecting tube is fixedly installed inside the housing; the heat absorbing plate is installed between the facing-light surface of the housing and the U-shape heat collecting tube; the side, facing the facing-light surface of the housing of the heat absorbing plate is coated with selective absorbing coating, the other side of the heat absorbing plate is tightly fitted to the U-shape heat collecting tube; an enclosed vacuum environment can be formed inside the housing; sunshine irradiates on the heat absorbing plate through the facing-light surface of the housing and the heat absorbed by the heat absorbing plate can be used for heating heat transferring medium inside the U-shape heat collecting tube. The heat collector is provided with a heat absorbing plate which is coated with selective absorbing coating having high solar absorption efficiency and low reflection efficiency; the surface area of the heat absorbing plate is large and the heat absorbed by the heat absorbing plate can be quickly transferred to the U-shape heat collecting tube; a heat radiation shielding layer is used for reducing the heat radiation loss of the heat collector.
Owner:YIKEBO ENERGY TECH SHANGHAI
Composite cavity type solar absorber
InactiveCN105066479AImprove capture abilityNot easy to spillSolar heating energySolar heat devicesGlass coverSolar absorber
The invention discloses a composite cavity type solar absorber which comprises a two-layer steel shell assembly, a combined type reaction heat absorbing tube assembly, an arc-shaped bottomless circular truncated cone reflective wind screen and a glass cover. The two-layer steel shell assembly comprises a low-temperature-zone shell, a middle-temperature-zone shell and a high-temperature-zone shell which are sequentially connected through bolts; the combined type reaction heat absorbing tube assembly comprises a low-temperature-zone calandria, a middle-temperature-zone coiled tube and a high-temperature-zone calandria which are correspondingly located in the low-temperature-zone shell, the middle-temperature-zone shell and the high-temperature-zone shell respectively and tightly attached to the inner walls of the shells; the arc-shaped bottomless circular truncated cone reflective wind screen is connected with an opening of the bottom of the low-temperature-zone shell; the glass cover is arranged in a space defined by the low-temperature-zone shell and the middle-temperature-zone shell and connected with the upper portion of the arc-shaped bottomless circular truncated cone reflective wind screen. According to the composite cavity type solar absorber, the heat losses can be effectively reduced, the light-heat conversion efficiency is improved, and the heat energy is immediately converted into high-grade heat energy or chemical energy to be stored.
Owner:SOUTH CHINA UNIV OF TECH
Energy-saving cooking range
InactiveCN102788372AIncrease the distance traveledImprove the heating effectDomestic stoves or rangesLighting and heating apparatusHeating effectEngineering
The invention discloses an energy-saving cooking range. The energy-saving cooking range is characterized by comprising a cooking range body and a burning board. The cooking range body is provided with a spiral gas channel. The top end of the gas channel is opened. The burning board is arranged at the opening of the gas channel to seal the gas channel. The gas channel is divided into layers of circular channels communicated from outside to inside. The cooking range body is provided with a gas lead pipe for leading an external gas source into the gas channel. The energy-saving cooking range has the beneficial effects that the path of gas can be better enhanced through the spiral gas channel, so that the gas which is directly jetted and vertically combusted formerly is combusted after being adequately mixed in a gas pipeline. As gas flows in the gas pipeline, the flame is closer to the burning board so that the heat radiating loss is reduced, and the heating effect is better.
Owner:KUSN SHENGGUANG NEW ENERGY TECH
Solar selective absorbing coating
InactiveCN103574948AInfrared radiation suppressionFacilitates medium and high temperature applicationsSolar heat devicesMetal layered productsEmissivityReflective layer
The invention relates to the technical field of solar energy and discloses a solar selective absorbing coating. The solar selective absorbing coating comprises a metallic reflective layer and a semiconductor absorption layer formed on the metallic reflective layer, wherein the metallic reflective layer is prepared from Al, and the semiconductor absorption layer is prepared from Ge. According to the solar selective absorbing coating, the advantage that a Ge semiconductor is steep in energy band cutoff and has little adverse effect on the low infrared emissivity of metal Al is effectively exerted, so that a solar-system heat collector can absorb solar spectra to the maximum and effectively inhibit infrared radiation, and the limitations to the high-temperature application of the traditional selective absorbing coatings are broken through.
Owner:YIKEBO ENERGY TECH SHANGHAI
Ladle covering and uncovering device of LF and using method thereof
PendingCN110860679AThe process layout is compactReduce heat radiation lossMelt-holding vesselsThermal radiationManufacturing engineering
The invention discloses a ladle covering and uncovering device of an LF and a using method thereof. The ladle covering and uncovering device comprises a fixed beam supporting mechanism, a movable beamtelescopic mechanism and a driving mechanism, wherein the movable beam telescopic mechanism reciprocates on the fixed beam supporting mechanism, a fixed beam rack is arranged on the fixed beam supporting mechanism, a movable beam rack is arranged on the movable beam telescopic mechanism, and the driving mechanism is arranged between the movable beam telescopic mechanism and the fixed beam supporting mechanism. A synchronous gear set in the driving mechanism simultaneously meshes with the fixed beam rack and the movable beam rack. The problem that due to the fact that the installation space ofthe station of the LF is limited, a rail of a ladle car of the LF is arranged perpendicular to a rail of a converter, and the situation that the covering and uncovering device cannot be arranged on line is solved; heat exchange between molten steel and air is effectively blocked by covering the steel ladle, heat radiation loss of the steel ladle is reduced, tapping temperature of the converter isreduced, inclusions in molten steel are reduced, casting blank quality is improved, and the service life of a steel ladle refractory is prolonged.
Owner:ANSTEEL HEAVY MACHINERY CO LTD
Solar photo-thermal utilization energy gathering module with convex lens array
PendingCN114440475AEfficient light and heat utilizationReduce material costsSolar heating energyCollector thermal insulationEngineeringMechanical engineering
The invention discloses a solar photo-thermal utilization energy gathering module with a convex lens array, and belongs to the technical field of solar photo-thermal utilization. The system comprises a convex lens array energy gathering structure, the convex lens array energy gathering structure comprises a plurality of convex lenses which are connected in series or in parallel, the convex lenses which are connected in series or in parallel form a matrix structure, and focuses of the convex lenses which are connected in series or in parallel are located on the same plane; and the heat collection plate is located on one side of the convex lens array energy gathering structure, a medium circulation pipeline is arranged on the heat collection plate, a heat absorption medium circulates in the medium circulation pipeline, and the heat collection plate is used for absorbing high-temperature heat energy generated by focusing of the convex lens array energy gathering structure. The photo-thermal utilization rate can be improved, the heat loss is reduced, and meanwhile the manufacturing and using cost is reduced.
Owner:上海毅亚德科技有限公司
Cooking fume recirculation type energy-saving gas stove
InactiveCN109084299AEmission reductionIncrease temperatureDomestic stoves or rangesCooking fumes removalInsulation layerProcess engineering
The invention provides a cooking fume recirculation type energy-saving gas stove. The cooking fume recirculation type energy-saving gas stove comprises a stove base, a combustor, a range hood, a negative-pressure pump, an automatic cooking fume detection and control valve and a safety valve. The stove base is of a cylindrical structure. The upper portion of the stove base is of a downward-concavespherical surface structure, and the downward-concave spherical surface is coated with a radiative heat-dissipation paint coating. A hollow annular heat insulation layer is arranged on the stove base.The combustor is arranged at the center of the downward-concave spherical surface, and the lower portion of the combustor is connected with a gas and air premixing pipeline. A spiral preheating pipeis wound outside the gas and air premixing pipeline. One end of the preheating pipe is connected with the negative-pressure pump, and the other end of the preheating pipe is connected with the hollowannular heat insulation layer through a smoke return pipe. The range hood is arranged over the stove base. A smoke pipe is guided out from a smoke discharging pipeline of the range hood and is connected with the automatic cooking fume detection and control valve. One path of cooking fume from the automatic cooking fume detection and control valve is discharged through a first pipeline, and the other path of the cooking fume is connected to the safety valve through a second pipeline and then is connected to the gas and air premixing pipeline.
Owner:YANSHAN UNIV
Vacuum high-temperature solar heat collecting tube
InactiveCN105509349AReduce heat lossReduce heat radiation lossSolar heating energySolar heat devicesTin dioxideGlass cover
The invention belongs to the technical field of solar energy photo-thermal utilization and particularly relates to a vacuum high-temperature solar heat collecting tube which comprises a base tube, Kovar alloy, a glass cover and a bellows. The vacuum high-temperature solar heat collecting tube is characterized in that the outer wall of the base tube is sequentially provided with an absorbing coating and a reflection-deducting coating from inside to outside; the base tube, the absorbing coating and the reflection-deducting coating are fixedly sleeved with the glass cover, and the absorbing coating and the reflection-deducting coating are located on the outer wall of the base tube; the glass cover is fixed to the two ends of the bellows through the Kovar alloy; the absorbing coating is made of a nickel and molybdenum ceramic composite material or a tungsten and cobalt ceramic composite material; the reflection-deducting coating is one or a combination of an aluminum oxide coating, a chromium oxide coating and a tin dioxide coating; the thickness of the absorbing coating is 10-25 microns, and the thickness of the reflection-deducting coating is 10-25 microns. Vacuum heat preservation is adopted by the vacuum high-temperature solar heat collecting tube, so that heat conduction loss and heat convection loss are reduced. The vacuum high-temperature solar heat collecting tube has the advantages of being resistant to high temperature, good in weather resistance and high in thermal absorptivity.
Owner:JOIN GREEN ENERGY TECH TIANJIN CO LTD
Polycrystalline silicon reduction furnace inner wall coating device and method
ActiveCN112663005AReduce heat radiation lossHigh energy consumptionPolycrystalline material growthVacuum evaporation coatingThin metalThin membrane
The invention discloses a crystalline silicon reduction furnace inner wall coating device and method. The crystalline silicon reduction furnace inner wall coating device comprises a base, a heating device, a gas exchange device and a power supply device, wherein the base is provided with at least two gas replacement holes; a hollow target material is the same as a bell jar in shape and smaller than the bell jar, the material of the target material is the same as the target material of a coating film, and the target material is arranged in the bell jar; the bell jar and the target material are positioned on the base; the bell jar is provided with a jacket, and a flowing medium with heat can be injected into the jacket; the heating device is arranged in the target material and is used for heating the target material; the gas exchange device is used for performing gas replacement on the space between the bell jar and the target material; when the target material is arranged in the bell jar, the gas replacement holes are positioned in a space between the target material and the bell jar; and the power supply device is provided with a positive electrode connected with the bell jar and a negative electrode connected with the target material. According to the crystalline silicon reduction furnace inner wall coating device, the ultrathin metal film with uniform structure and strong binding force can be prepared on the inner wall of a polycrystalline silicon reduction furnace, and each position of the inner wall of the bell jar can be coated at the same time, so that the problem of stress concentration or residue caused by segmented coating is solved.
Owner:ASIA SILICON QINGHAI +1
Low loss solar heat-collecting tube
InactiveCN1779383AReduce heat radiation lossImprove transmittanceSolar heating energySolar heat devicesTransparent conducting filmHeat losses
A low heat loss solar heat-collecting pipe consists of an inner pipe, a heat-collecting pipe absorbed layer coated on the inner pipe, an outer pipe and a supporting spring located between the heat-collecting pipe absorbed layer and the outer pipe. The outer pipe is coated with the transparent conductive film having spectral selection transmission capacity or clad with plastic film coated with transparent conductive film.
Owner:BEIHANG UNIV
Heating pipeline structure and temperature early-warning method
InactiveCN105928054AStrong heat insulation abilityImprove affordabilityLighting and heating apparatusSpace heating and ventilation detailsEngineeringHeat losses
The invention discloses a heating pipeline structure and a temperature early-warning method. The heating pipeline structure comprises a bearing floor, a foundation, a heating pipeline, a pipeline side a, a pipeline side b, an inner protective layer, a PERT pipe seat, a mounting groove and a thermal radiation coating. The heating pipeline structure and the temperature early-warning method have the beneficial effects that the heating pipeline is mounted in the bearing floor, so that space is utilized felicitously, and the heating pipeline is protected from being damage by the external world; the PETR pipe seat is highly heat-proof, and has high heat insulation property; the pipeline side b of the heating pipeline is connected with a mounting groove, so that radiation heat loss to the foundation is greatly reduced; as the pipeline side a is uniformly doped with a heat conduction filling agent, temperature starting can be relatively fast, heat radiation can be uniform, uneven heating is avoided, the environment temperature can be kept agreeable during use, and the thermal radiation effective rate is greatly improved; when the heating pipeline structure and the temperature early-warning method are used in places such as a library and a classroom, a large quantity of heat can be saved, so as to improve the economical applicability of the heating pipeline; and as the inner protective layer is arranged on the inner surface of the pipeline, and the PETR pipe seat is stable, the use reliability of the heating pipeline structure can be guaranteed.
Owner:WENDENG LANDAO ARCHITECTURAL ENG CO LTD
Solar heat collector
InactiveCN103574926ARaise the ratioIncrease working temperatureSolar heating energySolar heat devicesWorking temperatureEngineering
The invention relates to the technical field of solar energy and discloses a solar heat collector. The solar heat collector comprises focusing devices, a plurality of vacuum heat collecting tubes, selective absorbing coatings and a bracket, wherein the vacuum heat collecting tubes are located below the focusing devices, the selective absorbing coatings are coated on the vacuum heat collecting tubes, and the bracket is used for fixedly arranging the focusing devices and the vacuum heat collecting tubes. The solar heat collector disclosed by the invention has higher working temperature, the limitations that the existing solar heat collectors have low working temperature are broken through, and the high-temperature application of the solar heat collector is promoted effectively. The solar heat collector has the advantages of simple structure, low manufacturing cost, wide application range and the like.
Owner:YIKEBO ENERGY TECH SHANGHAI
Thermal radiation loss reduction in a parabolic trough receiver by the application of a cavity mirror and a hot mirror coating
PendingUS20210190382A1Reduce heat radiation lossReduce heat radiationSolar heating energySolar heat collectors with working fluidsSolar plantThermal radiation
This invention concerns a receiver unit (10) for a parabolic trough solar plant. The receiver unit (10) has a conduit (12) for conveying a heat transfer fluid (14) and a cover (16), which is located about the conduit (12) such that a vacuum is formed between the conduit and the cover. The conduit (12) is designed to absorb thermal radiation. The cover (16) has a first portion (26) defining a window (22) through which incoming solar radiation (24) passes into the vacuum and onto the conduit (12) and a second portion (28) carrying a reflective surface (20) so as to reflect thermal radiation back onto the conduit (12). The invention also concerns a method of reducing thermal radiation loss from a parabolic trough receiver.
Owner:UNIVERSITY OF THE WITWATERSRAND
Simulation window and wall system and simulation method for natural illumination environment
PendingCN110715283AImprove the living environmentNoise isolationMechanical apparatusPoint-like light sourceEngineeringShadow effect
The invention relates to a simulation window and wall system and a simulation method for a natural illumination environment. The simulation window wall system comprises a hollow wall body, a window body arranged on a front panel of the hollow wall body, a spotlight assembly and a lamp tube assembly. The spotlight assembly is arranged in the hollow wall body and comprises multiple spotlight units,the multiple spotlight units are distributed at the upper half portion of the window body in a surrounding manner and keep a distance with the front panel, the illumination directions of the multiplespotlight units face the window body and can be turned on and turned off in sequence in the surrounding direction so as to emit light through the window body. The lamp tube assembly is arranged in thehollow wall body and is arranged along a window frame of the window body. By means of the simulation window and wall system and the simulation method for the natural illumination environment, due tothe cooperation of the multiple spotlight units and lamp tubes and adjustment of the color temperature and brightness in different time periods, all-day real-time simulation can be achieved, light raychanges can be consistent with outdoor environment light ray changes, light rays emitted by the spotlight units illuminate and penetrate the bright window body and finally are spread to the ground surface, a natural light and shadow effect can be formed, the effect can be consistent with the effect that normal sunlight penetrates the window, a human body can perceive the nature illumination anglein real time, and normal running of a biological clock is facilitated.
Owner:TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
Vacuum heat-absorbing tube of solar water heater
InactiveCN101968281AHigh thermal efficiencyStrengthened general circulationSolar heat devicesSolar thermal energy generationSolar waterTemperature difference
The invention discloses a vacuum heat-absorber of a solar water heater, comprising an inner tube and an outer tube, wherein a reflow tube is arranged in the inner tube along the axial direction of the inner tube and is provided with a small through hole. The invention has the advantages that: on the basis of the traditional solar water heater and under the same condition, by improving the internal structure of the solar vacuum heater-absorbing tube, enhancing lager circular current between hot water in the solar vacuum heat-absorbing tube and water in a heat-preserving container and reducing the temperature difference between the hot water in the solar vacuum heat-absorbing tube and the water in the heat-preserving container, solar energy absorbed by the solar vacuum heat-absorbing tube can be transmitted to and stored in the heat-preserving container in time, heat-radiating loss of hot water which generates heat radiation due to the high temperature in the solar vacuum heat-absorbingtube can be reduced, thereby improving the heat efficiency of the solar water heater; and compared with the prior art, the invention can remarkably improve the heat efficiency of the solar water heater by 2-8 percent by increasing cost slightly and can improve the temperature of the hot water of the solar water heater by 1-5DEG C.
Owner:WUXI INST OF ARTS & TECH +1
Coating device and method for inner wall of polysilicon reduction furnace
ActiveCN112663005BReduce heat radiation lossHigh energy consumptionPolycrystalline material growthVacuum evaporation coatingThin metalThin membrane
The invention discloses a film coating device and method for the inner wall of a crystal silicon reduction furnace. The device includes: a base with at least two gas replacement holes; a hollow target which is the same shape as the bell jar and smaller than the bell jar; the material of the target material and the coating target The material is the same, set inside the bell jar; both the bell jar and the target are located on the base; the bell jar has a jacket, and the jacket can be injected with a flow medium with heat; the heating device is set inside the target, used to heat the target Heating; a gas exchange device for gas replacement of the space between the bell and the target; when the target is placed inside the bell, the gas replacement hole is located in the space between the target and the bell; a power supply device with The positive pole connected to the bell jar, and the negative pole connected to the target. The invention can prepare an ultra-thin metal film with uniform structure and strong bonding force on the inner wall of the polysilicon reduction furnace, and can simultaneously coat various positions on the inner wall of the bell jar, thereby avoiding stress concentration or residual problems caused by segmented coating.
Owner:ASIA SILICON QINGHAI +1
Spherical cavity type solar heat absorber with inwardly concave glass cover
InactiveCN102322694BImprove capture abilityNot easy to spillSolar heating energySolar heat devicesGlass coverEngineering
Owner:SOUTH CHINA UNIV OF TECH
Disc-shaped pot rack and gas stove
PendingCN112628811AImprove reflective effectPromote aggregationDomestic stoves or rangesLighting and heating apparatusProcess engineeringHeat of combustion
The invention relates to the technical field of stoves, in particular to a disc-shaped pot rack and a gas stove. A plurality of circles of first platforms and a plurality of circles of first slopes are arranged on the top face of the disc-shaped pot rack, the first slopes incline upwards from inside to outside, and at least one circle of first platform is located between two circles of first slopes. and the gas stove comprises the disc-shaped pot rack. According to the disc-shaped pot rack and the gas stove, the heat loss can be reduced, and the combustion heat utilization rate can be increased conveniently.
Owner:HANGZHOU ROBAM APPLIANCES CO LTD
A personal energy management device with fluorine-containing silane hydrophobic surface layer and its preparation and application
InactiveCN105603725BReduce heat radiation lossEasy to control temperatureFibre typesSilanesMechanical energy
The invention relates to a personal energy managing device containing a fluoroalkyl silane hydrophobic surface layer and a production method and application of the personal energy managing device. The device is characterized in that silver nano wires AgNWs and polydimethyl siloxane (PDMS) sequentially wrap the surface of nylon cloth, and fluoroalkyl silane is grafted to the surface of the PDMS to form the device. The production method includes: soaking the nylon cloth wrapped by the silver nanowires (AN cloth) into the PDMS, and taking out and curing to obtain the AN cloth wrapped with the PDMS (PDMS / AN cloth); performing plasma treatment on the PDMS / AN cloth, soaking into an FAS solution, and drying to obtain the personal energy managing device. The personal energy managing device and the production method thereof have the advantages that the device is applicable to a friction nano power generator to convert mechanical energy into electric energy so as to power a small device and can be used as wearable heat managing equipment to keep a human body warm and provide a heating function; a simple dip-coating method is used to allow the fluoroalkyl silane to be grafted to the surface of the PMDS, and the output performance of the friction nano power generator is increased greatly.
Owner:DONGHUA UNIV
Novel anti-freeze solar heat collecting module
InactiveCN105402912AExtended service lifeReduce heat radiation lossSolar heat devicesSolar thermal energy generationSolar absorptanceLow emissivity
The invention discloses a novel anti-freeze solar heat collecting module which comprises a base plate. Aluminum alloy baffles are arranged on the four edges of the base plate. A heat insulating plate is bonded to the inner surface of the base plate. A branch pipe and a heat collecting plate are installed on the heat insulating plate. A converging pipe extending to the outer side of one aluminum alloy baffle is arranged between the branch pipe. The surface of the heat collecting plate is coated with a carbon powder layer. A transparent cover plate is arranged above the heat collecting plate and connected with the aluminum alloy baffles in a clamped mode. According to the novel anti-freeze solar heat collecting module, through the structural design of adding artificial roughness and fins on the heat collecting plate, the heat exchange area of the heat collecting plate is increased in a disguised form, the convection and heat exchange effects are improved, and heat exchange on the surface of the heat collecting plate is enhanced; through the combination of the carbon powder layer applying on the surface of the module, the unification of the high solar absorptance of the surface coating and the low emissivity is achieved, the efficiency of absorbing the solar radiation energy is improved, the thermal radiation loss of the heat absorbing plate is reduced, and the working efficiency of the heat collector is improved.
Owner:HAINING CHAODA SOLAR COLLECTOR TUBES
A solar water purifier based on interfacial solar photothermal conversion
ActiveCN111302423BGuaranteed uptimeReduce maintenance costsSolar heating energyGeneral water supply conservationPotable waterPhotothermal conversion
Owner:ANHUI UNIVERSITY
Pipeline heat preservation structure
PendingCN111795261AAntioxidantCorrosion resistanceThermal insulationPipe protection by thermal insulationInfraredInsulation layer
The invention relates to the technical field of pipeline heat preservation, in particular to a pipeline heat preservation structure. The pipeline heat preservation structure is characterized in that aheat insulation layer 2, a fixing layer 3 and a protective layer 4 are sequentially arranged outwards from an outer wall 1 of a pipeline. According to the pipeline heat preservation structure, the heat insulation layer is formed by splicing heat insulation plates which are prepared from nano powder, and the thickness of the heat insulation layer is 5-50 mm; the fixing layer 3 is composed of glassfiber strips and plays a role in fixing the heat insulation plates; a reflecting layer 5 is aluminum foil, the mirror surface of the reflecting layer 5 can reflect infrared rays to further improve the heat insulation effect; and the protective layer 4 is metal or metal alloy, two metal skins matched with the model of the pipeline are buckled up and down on the steam pipeline, the steam pipeline is just matched and connected with the metal skins, and the rivet fixing is reduced. The pipeline heat preservation structure has the advantages of being thin in thickness, easy to construct, environment-friendly in construction, long in service life, strong in stability, free of recovery cost and the like.
Owner:NANTONG JIANGSHAN AGROCHEM & CHEM LIMITED LIABILITY
Hierarchical cavity type solar heat absorber and heat exchange system
ActiveCN102003696BEnsure safetyReduce the difficulty of runningSteam generation heating methodsFrom solar energyRadiation lossHeat flow
The invention discloses a hierarchical cavity type solar heat absorber which comprises a solar reflector and heat absorbers, and is characterized in that the heat absorbers comprise an independent primary heat absorber and an independent secondary heat absorber, namely a primary heat absorber with an evaporation heating surface and a secondary heat absorber with an overheating heating surface, wherein the evaporation heating surface and the overheating heating surface are connected through a steam pocket. The invention has the beneficial effects that as condensers and the heat absorbers are arranged in a targeted manner, the heat-flow density can be effectively distributed, the safety of the heat absorbers is ensured and the operation difficulty is reduced; the tube wall thickness of the heat absorbers can be properly increased so as to improve the pressure rating of a working medium and the unit efficiency; and the condensers are arranged in groups and the heat-flow density of each part in a heat receiver is controlled within a reasonable range so that temperature near the heat receiver can be reduced and the solar heat radiation loss after focusing is reduced.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
Preparation method of solar selective absorbing coating with double-texture surface and coating
ActiveCN114635105ANovel structurePromote absorptionVacuum evaporation coatingSputtering coatingAnti-reflective coatingAlloy
The invention provides a preparation method of a solar selective absorbing coating with a double-texture surface and the coating. The preparation method comprises the following steps: preparing magnetron sputtering equipment, placing a sputtering target material, an arc power supply, a turntable and a substrate, vacuumizing and heating; high-purity Ar gas is introduced, negative bias voltage of the substrate is set, an arc power source is turned on, and the required texture surface is etched on the surface of the substrate through Ar under the action of the arc power source; depositing a multi-layer absorbing coating: turning off an arc power supply, rotating a turntable to enable the substrate on the turntable to be parallel to the sputtering target material, turning on a radio frequency power supply, setting parameters, simultaneously introducing high-purity Ar gas and oxygen into the chamber, sequentially setting different O2 / Ar ratios, sputtering substances of the sputtering target material, and depositing the substances on the substrate to form the gradient multi-layer absorbing coating; depositing an alloy oxide or pure metal oxide anti-reflection coating; etching a secondary texturing morphology on the surface of the anti-reflection layer through the Ar < + > ion beam; and finishing the preparation of the coating. The absorption performance and the high-temperature stability of the prepared coating are greatly improved.
Owner:WUHAN UNIV
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