204 results about "Thermal emission" patented technology

This invention discloses an in-situ instrument insulation device, comprising an outer insulation tube and an inner insulation tube, which are sleeved together to form a cavity structure. This cavity structure is a vacuum double-layer tube structure. A gas chamber sampling tube is disposed within the inner insulation tube. The cavity structure is an internal interlayer structure, which is silver- or copper-plated. A guide plate with guide fan blades is disposed within the inner insulation tube. This invention, by setting a vacuum double-layer tube structure, blocks heat conduction and convection between the outer and inner insulation tubes. Simultaneously, the silver or copper plating of the internal interlayer of the cavity structure further weakens heat radiation between the interlayers, fundamentally blocking heat transfer and achieving insulation, thus significantly reducing heat loss from the heat tracing pipe.

The utility model relates to a cooking machine technical field, concretely discloses a sandwich machine. The sandwich machine, including the upper machine group and the lower machine group, all are provided with cooking assembly in the upper machine group and the lower machine group respectively, and the cooking assembly includes the heating body, the energy -conserving reflection board and the cooking surface, and the heating body is carbon fiber heating tube, through such structural design mode, carbon fiber heating body directly carries out the heating to the cooking surface, and through the energy -conserving reflection board mirror surface reflection of relative setting, the thermal energy of heating body is further reflected to the cooking surface, and the heating efficiency can be greatly improved through the heat radiation, the rapid heating can be realized, and the maximum degree heat energy utilization is realized. Meanwhile adopt detachable heating body, can be convenient to maintain after the heating tube damage or glass damage, save the maintenance cost and reduce the maintenance difficulty.

This invention discloses a near-field heat flux control device and its control method, relating to the field of near-field thermal radiation control technology. The device includes a first radiator, a second radiator, and an intermediate control layer. The intermediate control layer, disposed between the two radiators, is composed of a narrow bandgap semiconductor material. Its carrier concentration changes smoothly with temperature, and its dielectric response characteristics continuously change with temperature, driving a frequency shift in the plasma frequency. The temperature of the intermediate control layer can be adjusted to amplify or suppress the heat flux. By using a narrow bandgap semiconductor and utilizing the temperature change of carrier concentration to drive a continuous blue shift in the plasma frequency, a spectral sweep effect is induced between the two radiators. This differs from the lattice abrupt change mechanism of phase change materials. Under an idealized temperature-shifting material model, the theoretical heat flux amplification factor of the device can reach over 100. When InSb is used as the intermediate control layer and simulations are performed based on its actual material parameters, the device maintains stable amplification performance over a continuous temperature range of approximately 40K.

This invention provides a method and system for generating visible light to infrared images based on a prototype-guided diffusion model, relating to the field of computer vision technology. The method includes: collecting visible light images to be converted; loading a pre-constructed set of infrared prototype features and pre-trained model parameters; and inputting the image and feature set into a prototype-guided diffusion model network. This network generates the corresponding infrared image through the collaborative work of its internal prototype feature construction, local prototype attention, and noise prediction modules. This invention effectively solves the problems of poor physical consistency and detail distortion in generated images caused by insufficient modeling of infrared thermal features in existing methods by extracting thermal radiation prototypes from real infrared data and introducing them as strong semantic priors into the diffusion generation process. This significantly improves the thermal structure realism and detail fidelity of the synthesized infrared image.

A method for exfoliating three-dimensional nanomaterials based on carbon nanotube growth is disclosed. A catalyst is loaded onto the surface of a three-dimensional nanomaterial composed of two-dimensional nanosheets. Energy, a carbon source, H2, and Ar are provided to the three-dimensional nanomaterial in a reactor to exfoliate the two-dimensional nanosheets by growing CNTs. The three-dimensional nanomaterial is composed of at least one combination of two-dimensional nanosheets, including nanoflowers and nanolayers. The two-dimensional nanosheets include at least one of alumina, silicon oxide, and magnesium oxide. The three-dimensional nanomaterial is obtained through hydrothermal or solvothermal chemical reactions. The energy is provided by indirect heating of the substrate, which is achieved by directly heating the reactor through thermal radiation or convection to generate heat in the substrate. This invention solves the problem of the difficulty in exfoliating three-dimensional nanomaterials.

The utility model discloses a production workshop temperature and humidity monitoring early warning device, including monitor body, the back of monitor body is provided with installation component, and installation component includes first vertical board and second vertical board, the first vertical board and second vertical board between hinged have scissor type pole, the second vertical board bottom fixedly has connecting ball, in the utility model, set up monitor body and installation component, the first vertical board of installation component is fixed in the wall surface, after installing the first vertical board, can through pulling second vertical board and make scissor type pole deformation to adjust the horizontal position of monitor body, second, through the rotation of ball in the surface of connecting ball, can change the angle of monitor body, can be like adjusting monitoring camera, stepless adjustment monitor body's orientation, avoid the interference of direct blowing air -conditioning wind or equipment's heat radiation, ensure that the measurement is the real environment air of target area, need not change the installation position.

The application discloses a blackbody-thermoelectric pile cooperative thermistor multi-temperature-point zero-point matching calibration method. The method utilizes the Seebeck effect of the thermoelectric pile, establishes the accurate corresponding relationship of the blackbody standard temperature-thermistor resistance value through zero-point matching, carries out dynamic temperature scanning on different calibration point temperatures of the cavity, and obtains the thermistor parameters of multiple temperature points. Finally, the accurate R-T curve is fitted through the least square method. The method innovatively calibrates the thermistor through the blackbody heat radiation mode. The method does not need to disassemble the instrument, does not damage the stability of the original system, can complete the rapid calibration of the instrument on site, effectively reduces the calibration cost, and guarantees the temperature calibration accuracy and the calibration effect.

The application provides a substrate carrier, a conveying system, a vacuum system and a method for operating the substrate carrier, the substrate carrier comprising a bearing frame, a substrate bearing surface, a groove and a heat absorbing sheet, the substrate bearing surface is used for placing a substrate, a groove is arranged on the bottom side of each substrate bearing surface, a heat absorbing sheet is arranged on the bottom surface of the groove, the emissivity of the first surface of the heat absorbing sheet is greater than the emissivity of the second surface of the groove bottom surface and / or the heat absorbing sheet, in this case, the low emissivity surface can inhibit heat dissipation, and the high emissivity surface can allow heat to pass through efficiently, therefore the first surface of the heat absorbing sheet can reabsorb the thermal radiation of the substrate and transmit to the second surface or the groove bottom surface, and good heat dissipation effect is achieved. This technology is simple and low in cost, meanwhile, the coating speed does not need to be reduced, and the problem of temperature rise of the substrate can be effectively solved without reducing the processing efficiency.

The utility model discloses a low temperature nozzle belongs to turbojet engine technical field, including the outside shield of fixed connection in the engine tail nozzle, the side of outside shield near engine body is equipped with a plurality of air inlet at interval, and the one end of outside shield near engine tail nozzle spout is equipped with the air outlet. When engine body runs, the spout of engine tail nozzle sprays high temperature high -speed gas, at this moment, utilize siphon principle, will bring out the airflow in outside shield, and cold air keeps on continuously acting between engine tail nozzle and outside shield, and the cooling of engine tail nozzle is given, and outside shield also will break off the heat radiation that inside tail nozzle emits, reaches the effect that reduces engine tail nozzle temperature.

The application discloses a kind of leaf contains stem detection positioning method and device, comprising: obtaining the image and thermal radiation data of tobacco sheet;Tobacco sheet image and thermal radiation data are pretreated;Combining image data and thermal radiation data judges whether tobacco leaf contains stem is excessive, determines the position and range of excessive tobacco sheet;According to the position information of leaf contains stem, emit multiple laser points to automatically displace positioning tracking to excessive tobacco sheet.The purpose of the present application is to provide a kind of leaf contains stem detection positioning method and device, to improve the detection positioning accuracy of leaf contains stem, so as to improve the rejection accuracy.

The invention relates to the technical field of sugarcane spica monitoring, and discloses a sugarcane spica flowering intelligent monitoring system, which is characterized in that a hyperspectral image and an infrared image are acquired, the hyperspectral image and the infrared image are acquired and registered into a multi-source image data set, and a spica area binary mask image is segmented; extracting morphological structure characteristics, spectral reflection characteristics and thermal radiation characteristics, calculating a visibility index KJ, a wave band reflectivity BS and a radiation temperature value FP based on the extracted characteristics, calculating a determination value P, and comparing the determination value P with a hybridization threshold ZY; according to the method, the hyperspectral image and the infrared image of the sugarcane spica are collected, the hyperspectral image obtains the fine spectral reflection characteristics of the sugarcane spica so as to analyze the physiological state of the sugarcane spica, and the infrared image is used for assisting in obtaining the overall shape, contour and thermal radiation information of the spica, and especially, the image characteristics are enhanced in a weak light environment; therefore, the sugarcane spica area can be accurately identified, and the effective distinguishing between the spica and the background can be realized.

The invention relates to a welding discharge system, and relates to the technical field of optical fiber welding, the welding discharge system comprises a main control module, a driving voltage adjusting module and three flyback boost modules, the driving voltage adjusting module is controlled by the main control module to output an adjustable primary power supply voltage, and the flyback boost modules are connected with the main control module. The primary sides of the three flyback boost modules are connected in parallel to primary power supply voltage, the secondary sides of the three flyback boost modules are connected to the corresponding discharge electrodes, and the main control module is configured to output three paths of PWM driving signals with the same frequency to the three flyback boost modules, the discharge electrode in high-voltage release discharges to the other two discharge electrodes in relatively low potential, so that the three discharge electrodes are driven to generate phase rotation in space, and a rotary discharge arc around the optical fiber is formed; therefore, the problem of non-uniform heating caused by heat concentration in a fixed discharge direction and insufficient heat radiation in other directions is solved.

This invention provides a thermally insulating porous material with oriented channels and its preparation method. The material comprises a polyvinyl alcohol composite foam matrix with oriented through-channels, heat-storing microcapsules dispersed in the matrix and distributed along the channels, and a heat-reflective layer covering the outer surface of the matrix. Its preparation mainly includes: uniformly dispersing the heat-storing microcapsules in a slurry containing polyvinyl alcohol and nanofibers; forming a matrix with parallel columnar channels through directional freezing and freeze-drying; subsequently, performing glutaraldehyde vapor crosslinking and curing; and finally coating the matrix surface with a heat-reflective layer. This invention constructs an oriented channel structure that effectively extends the heat conduction path and utilizes still air for insulation. By encapsulating phase change materials, it achieves heat storage and temperature buffering. The surface heat-reflective layer reflects radiant heat, giving the porous material comprehensive properties of thermal insulation, temperature regulation, and heat radiation reflection.

The utility model discloses a kind of composite heat dissipation devices, comprising: heat dissipation fin unit, rotating part and fan unit, heat dissipation fin unit has a hollow part;Rotating part is set on hollow part top;Fan unit has a main shaft, and fan unit is connected in rotating part by main shaft;Wherein, heat source is transmitted to rotating part by hollow part through heat radiation mode and outward diffusion, and fan unit drives rotating part rotation by main shaft to discharge the heat received from composite heat dissipation device.

A rotating electric machine (100) in an internal rotor design for converting mechanical energy into electrical energy or vice versa, comprising: - a stator (2), - a rotor (4) inside the machine (100) which is enclosed by the stator (2) and is or can be arranged non-rotatably on or attached to a rotatably mounted drive / output shaft (5) such that the drive / output shaft (5) including the rotor is rotatable about an axis of rotation R, and - a rotor cooling device designed to guide cooling medium along at least a part of the inner surface and / or through at least a part of the interior of the rotor (4) for heat dissipation mainly by thermal convection or to bring it close to the inner surface of the rotor (4) for heat dissipation by thermal radiation, wherein the drive / output shaft (5) has a free shaft end (5a) and the rotor (4) is or can be fitted onto the free shaft end (5a) and the rotor (4) is cup-shaped.wherein the rotor cooling device further comprises a stationary hollow cooling nozzle (3) extending in the direction of the rotational axis R of the rotor (4) from the open side of the cup-shaped rotor (4) into the interior of the cup and having, at its end (3a) facing away from the rotor (4), connected or connectable to a cooling medium source for supplying cooling medium, and having a cooling medium outlet (19) for discharging the cooling medium to the outside of the machine, wherein the end (3b) of the cooling nozzle (3) facing the rotor (4) is open and rib- or blade-like projections (7) and a vane (8) for forced cooling are located on the outside (3c) of the cooling nozzle (3).

The application discloses a novel convection heat dissipation radiation refrigeration fabric, and realizes efficient radiation refrigeration from inside to outside through integration of a unique fabric structure design, various heat dissipation principles and a targeted manufacturing process, and air convection heat dissipation is generated by virtue of the concave-convex shape of the fabric, the human body heat dissipation efficiency of the fabric is effectively improved, and then the comfort of wearing or using is improved.

This invention provides an infrared light source structure and its fabrication method, as well as a gas sensor and its measurement method. The infrared light source structure includes a substrate, an opening, an insulating layer, a heating and radiating layer, and a metasurface filtering layer. The metasurface filtering layer includes a dielectric layer and a metal layer encased by the dielectric layer. The metal layer includes several first metal units and several second metal units on the same layer. Each first metal unit includes multiple first metal structures arranged in an array and having multiple first through-holes. Each second metal unit includes multiple second metal structures arranged in an array and having multiple second through-holes. The topologies of the first and second metal structures are the same, but their period lengths and the sizes of the first and second through-holes are different. The two narrowband infrared radiations with different wavelengths generated can be directly acquired by an infrared detector without additional processing, thus improving the energy of the infrared radiation.

The utility model provides a kind of ducted air conditioner, it relates to air conditioning technical field.Ducted air conditioner includes: cabinet, fan cavity and heat exchange cavity are formed with inside along length direction, the two ends of the length direction of cabinet are respectively equipped with the air inlet being communicated with heat exchange cavity and the air outlet being communicated with fan cavity;Indoor heat exchanger is located in heat exchange cavity and it includes: straight section heat exchanger, two are oppositely arranged with inclination;Support plate is connected between two straight section heat exchanger, and two straight section heat exchanger are enclosed to form airflow space with opening direction air inlet;Water pan is located below indoor heat exchanger;Sensor support, one end is fixed on support plate;Temperature sensor is installed in the other end of sensor support, to detect indoor ambient temperature.Temperature sensor is located between water pan and air inlet in the length direction of cabinet, completely placed in the outside of airflow space, can completely avoid the influence caused by heat radiation heat gathering, improve the detection accuracy of temperature sensor.

The present invention relates to a self-cooling nanoceramic additive in the form of an aqueous dispersion comprising emissive and reflective minerals. Said additive of the present invention is used to produce self-cooling architectural paints (single-layer coatings). The specific composition of the additive efficiently reflects sunlight, reduces heat absorption, emits thermal radiation, improves the durability of protected surfaces, reduces power consumption for cooling, and provides a formulation that is compatible with various solvents and materials, thereby facilitating its application on architectural coatings.

This disclosure relates to an infrared heating device for vacuum thermal testing. The infrared heating device includes: multiple plate units, heating wires, and connectors. The surface of each plate unit has multiple mesh openings and wiring grooves distributed between the mesh openings; the heating wires are embedded in the wiring grooves via a heat-conducting medium; the connectors are located on the plate units near the ends of the heating wires; the connectors are used to detachably electrically connect the heating wires to conductors, which are connected to an external power source; the multiple plate units can be detachably assembled to form a continuous radiating surface and enclose a heating chamber adapted to the shape of a spacecraft; the heating wires generate heat when energized and transfer the heat to the plate units via the heat-conducting medium; the plate units transfer external heat flow to the spacecraft surface through thermal radiation. This disclosure, through modular design and assembly, enables the infrared heating device to possess high flexibility and adaptability.

This invention provides a battery cover assembly and a lithium-ion battery. The battery cover assembly includes a cover plate, an electrode assembly, and a thermal radiation coating. The thermal radiation coating includes a first thermal radiation coating and a second thermal radiation coating. The electrode assembly includes an upper electrode plate and an insulating seal. The upper electrode plate has an electrode mounting area and a first coating area on the side facing the cover plate. The insulating seal is located between the electrode mounting area and the cover plate. The first coating area faces the cover plate, and the cover plate has a second coating area on the side facing the upper electrode plate. The first and second coating areas are spaced apart from each other. The first thermal radiation coating is applied to the surface of the first coating area, and the second thermal radiation coating is applied to the surface of the second coating area. The battery cover assembly provided by this invention establishes a heat transfer channel between the electrode plate and the cover plate through the first and second thermal radiation coatings, optimizing the battery heat dissipation path and thus improving the overall heat dissipation efficiency of the lithium-ion battery.

The utility model provides a kind of road noise barrier based on sound-absorbing material, including barrier support assembly and barrier body, barrier support assembly includes the barrier support post of pair arrangement, and the sliding slot upper end of barrier support post is connected with buffer sliding block, and one barrier hanging pole is connected between buffer sliding block, barrier hanging pole is connected with barrier assembly support by hinged link, and barrier assembly support is connected with barrier body by bolt.The utility model in barrier body is converted into heat energy dissipation by the sound hole hole of sound hole board body, and the sound-absorbing micropore on microporous attraction cloth layer is based on micro-perforated plate theory, and the sound-absorbing coefficient is excellent in full frequency band, especially in low frequency part, further improve sound-absorbing effect, significantly improve the sound-absorbing performance of low frequency band by sound-absorbing cotton layer, and the porous structure of sound-absorbing cotton layer effectively insulates internal air convection and heat radiation, significantly reduce heat loss, while large aperture area absorbs and reflects sound wave, effectively reduce noise.

The present application relates to the technical field of image enhancement, in particular to a remote sensing image enhancement method for forest fire monitoring, which specifically comprises the following steps: firstly, pre-processing multispectral images, digital elevation models and fire point labels to obtain multi-source training samples; then, performing differentiated enhancement on different bands in combination with terrain shadow intensity, normalized burning ratio and short-wave infrared local anomaly response; then, generating a spatially restricted fire line expansion area based on wind direction, slope direction and vegetation conditions, and performing thermal radiation enhancement and smoke plume shielding modulation to obtain physically simulated augmented samples; finally, constructing a double-branch dynamic receptive field network for decoupling fire points and smoke, and jointly training the network using focal loss and boundary consistency loss, and outputting a pixel-level fire danger probability map. The present application can improve the detection accuracy of forest fires under complex terrain and the enhanced results can be directly used for fire point detection or auxiliary manual interpretation.

The utility model relates to a rotor refrigerating plant of vacuum centrifuge, including mounting seat, semiconductor refrigeration subassembly and fluid passage, semiconductor refrigeration subassembly is used to form refrigeration end and heat -generating end, the heat -generating end is pasted with mounting seat, the refrigeration end is used to radiate refrigeration to rotor, the mounting seat is used to bear semiconductor refrigeration subassembly and conduction heat, fluid passage sets up in mounting seat, fluid passage is used to flow circulation refrigerant and take away the heat of mounting seat, the utility model discloses a clever combination of the refrigeration of semiconductor refrigeration subassembly and fluid passage circulation refrigerant heat dissipation, forms stable temperature difference in vacuum environment, utilizes heat radiation and exchanges heat to give rotor cooling, has solved the rotor refrigeration heat dissipation problem of vacuum centrifuge.

The utility model discloses a special-shaped device for toughened glass, which comprises a shell, two groups of processing cavities are arranged in the shell, mounting seats are fixedly arranged on the inner bottom surfaces of the two groups of processing cavities in a penetrating manner, and lower arc-shaped molds are arranged on the upper parts of the two groups of mounting seats; and heat radiation heaters fixedly penetrate through the inner walls of the two sets of machining cavities correspondingly, lifting plates are arranged in the two sets of machining cavities correspondingly, upper arc-shaped molds are installed on the lower portions of the two sets of lifting plates correspondingly, and an electric control box is installed on one side of the shell. The device has the beneficial effects that the device is provided with the processing cavity and the air storage cylinder, so that alternate operation of special-shaped bending of tempered glass is realized, when one piece of tempered glass is subjected to hot bending, the other piece of tempered glass is synchronously fed and preheated, the two groups of upper arc-shaped molds are driven to move up and down by utilizing a bidirectional air pump and a piston plate, and the tempered glass does not need to be replaced by shutdown; and the processing interval time is shortened.

The application discloses a kind of oil-rich coal in-situ pyrolysis system and method with rock as heat carrier, and the in-situ pyrolysis system includes pyrolysis block and is arranged on the ground pyrolysis product separation device, wind turbine, photovoltaic power generation system and thermal power generator unit;The overburden strata and underlying rock of coal seam are electrically heated, and the indirect, uniform and large-scale heating of coal seam is realized through the heat conduction and heat radiation of rock stratum itself, and a feasible heating approach for oil-rich coal in-situ pyrolysis is provided;Microencapsulated carbonate high-temperature phase change material is injected and encapsulated around the lower end of heating well, which significantly improves the heat storage capacity of rock stratum;Through the composite energy supply of wind-solar complementary new energy power generation and thermal power generation, the best pyrolysis efficiency of oil-rich coal is effectively maintained on the basis of reducing long-term operation economic investment of the system and promoting consumption of unstable renewable energy.

The application provides an improved heat dissipation surface structure resistor and a resistor preparation method, and belongs to the technical field of electronic components and electronic heat management, and comprises an insulating substrate, a resistor functional layer arranged on the insulating substrate, and a first protective layer arranged above the resistor functional layer. The resistor functional layer comprises electrode layers arranged on both sides of the insulating substrate and a functional metal layer electrically connected between the electrode layers on both sides. The first protective layer covers at least the upper surface of the functional metal layer, and the first protective layer has a corrugated structure that undulates up and down along the thickness direction. By arranging the first protective layer as a corrugated structure that undulates up and down along the thickness direction, the heat dissipation area of the outer surface of the resistor is improved, the surface air convection path is optimized, the convection heat dissipation and thermal radiation heat dissipation efficiency of the resistor are strengthened, and the resistance drift, precision decline and power attenuation caused by heat accumulation are avoided.

The present application belongs to the field of warmers, and particularly relates to an outdoor gas warmer. The outdoor gas warmer comprises, from bottom to top, a gas source storage box, a valve body assembly and a combustion assembly, which constitute a tower-shaped main body as a whole; the gas source storage box is of a box structure, the valve body assembly is internally provided with an electromagnetic flow valve, a multi-pass composite gas valve, an igniter and a burner; the electromagnetic flow valve is used for controlling the gas flow, the multi-pass composite gas valve controls the gas flow direction and guides the gas to the igniter; the igniter is used for ignition; the combustion assembly comprises a glass tube with a lower end cover arranged on the burner to close the burner, and is provided with a gas valve for supplying the combustion gas into the glass tube. The present application can effectively improve the gas utilization rate, simultaneously heats through two forms of heat radiation and contact heat transfer, reduces the energy invalid loss, improves the temperature rising rate, in addition, can visually estimate the flame height to estimate the gas residual amount, can realize continuous and uninterrupted combustion and gas supply, and the use effect is obviously improved.