307 results about "Radiation heating" patented technology

The invention discloses a wafer heating temperature sensing device and a detection method, and the method comprises the steps: coating a threaded end of a temperature sensor with high-temperature heat-conducting lubricating grease, carrying out the high-pressure washing of a threaded tooth tip end of a wafer heating block and a micro-texture gap of an inter-tooth recessed part, and enabling the micro-gap to be filled with the high-temperature heat-conducting lubricating grease, so as to enable the distribution density of the high-temperature heat-conducting lubricating grease to be uniform; gradient thermal compensation radiation heating is adopted, and wafer edge heat loss is dynamically compensated; compensating the temperature fluctuation of the wafer edge area and the wafer center area; the embedded scanning combination detection subsystem scans the surface of the wafer through an infrared thermal imager array and forms a temperature detection combination in combination with an embedded temperature sensor, so that the temperature detection precision and the temperature difference resolution are improved; according to a large amount of wafer heating detection data, through big data statistical analysis, a wafer heating temperature rise process and a wafer heat dissipation process are controlled, temperature difference overshoot in the wafer heating process is balanced, and cooling and heat dissipation uniformity is kept; the fluctuation trend of the surface temperature and the internal temperature of the wafer is predicted, and temperature abnormity is warned in advance.

A system that reduces the buildup of film on a movable shaft that enters and is retracted from a process chamber is disclosed. A ring heater is disposed around the shaft inside the process chamber proximate the air bearing. The ring heater includes a plurality of optical energy emitters arranged around the shaft. The wavelength emitted by the ring heater may be selected to align with the absorption spectrum of the film. In this way, the optical energy serves to heat the film and lower the tendency for the film to adhere to the movable shaft and enter the air bearing.

The invention provides a novel vacuum evaporator which comprises a vacuumizing system, a carrier rotating system, a light-operated integrated system, a crystal oscillation system, a heating system, a water cooling system and an evaporation system, and the light-operated integrated system and the crystal oscillation system are arranged in a hollow cavity of a first rotating mechanism, so that cooperative work of rotary coating and real-time detection is realized; a detection light path is shortened, and the signal-to-noise ratio is improved; rotation axis detection ensures data representativeness; the top radiation heating and the side wall conduction heating have a synergistic effect, so that the surface temperature difference of the substrate is smaller than + / -1.5 DEG C, the cooling efficiency of the evaporation system is improved by 40% through the water cooling system, the equipment is highly integrated through the modular architecture design, and the space is saved by 30% through the coaxial design of the carrier rotating system and the detection system; a rotating system, a heating system and a detecting system are cooperatively controlled, a dynamic compensation algorithm automatically adjusts the evaporation rate and the carrier rotating speed by comparing light control data with crystal oscillator data in real time, the film thickness control precision is + / -2 nm, and the refractive index deviation is smaller than 0.5%.

The invention discloses a thin film deposition cavity with uniform temperature distribution. The thin film deposition cavity comprises a heater, a back plate assembly, a cavity side wall, a cavity bottom plate and a plurality of temperature compensation devices, the back plate assembly comprises a gas inlet and a gas flow homogenizing plate; a vacuum pump interface is arranged on the cavity bottom plate; the temperature compensation device is arranged on the inner side of the side wall of the cavity, or the temperature compensation device is embedded in the side wall of the cavity; the temperature compensation device has the orientation and the light intensity of illumination radiation which can be independently adjusted. The multiple temperature compensation devices are arranged, illumination radiation heating is conducted on the low-temperature area on the front face of the wafer, so that temperature compensation is conducted on the wafer, the temperature of the surface of the wafer in the thin film deposition process is more uniform, and the thin film deposition quality is improved.

A system that reduces the amount of water that enters a process chamber via a movable shaft is disclosed. A ring heater is disposed around the shaft outside the process chamber proximate the air bearing. The ring heater includes a plurality of optical energy emitters arranged around the shaft. The wavelength emitted by the ring heater may be selected to align with the absorption spectrum of water. In this way, the optical energy serves to heat water droplets and lower the tendency for the water droplets to adhere to the movable shaft as it enters the process chamber.

The invention discloses a battery positive electrode with low impedance and high liquid absorption performance and a preparation method thereof, and the preparation method comprises the following steps: slurry pretreatment is matched with coating parameters, the viscosity of the slurry is adjusted to 4000-6000 mPa.s, and the coating speed and the viscosity meet the relation V = K / eta; preheating and homogenizing, wherein infrared radiation heating and hot air circulation are adopted; step-by-step gradient drying, including high-temperature rapid drying, medium-temperature drying and low-temperature stable drying; annealing treatment; and plasma surface modification. Compared with the prior art, by scientifically matching coating parameters, accurately controlling the drying process and optimizing the surface characteristics, the prepared positive electrode has the advantages that the crack length density is smaller than or equal to 0.15%, the interface impedance is smaller than or equal to 10 omega.cm, the electrolyte contact angle is smaller than or equal to 15 degrees, and the positive electrode has the advantages of low impedance and high liquid absorption performance, so that the cycle life of the battery is effectively prolonged.

The invention discloses a manufacturing method for preventing a pole piece from cracking and the pole piece, and the method comprises the following steps: preparing double-layer composite slurry with matched thermal expansion coefficient gradient, coating the double-layer composite slurry on the surface of a copper foil, and coating surface slurry on bottom slurry; the coated pole piece sequentially passes through a copper foil side infrared radiation heating area, a coating surface cold and hot air alternate drying area and an alternating magnetic field treatment area, bottom layer slurry is preferentially shrunk through infrared radiation, surface layer solvent gradient volatilization is controlled through cold and hot air alternation, and a magnetic field induces graphene to be directionally arranged so as to fill microcracks; performing pulse laser scanning on the dried pole piece, and softening a surface adhesive to realize in-situ self-repairing; coating strain distribution is monitored in real time, and drying parameters are dynamically adjusted. Compared with the prior art, the manufacturing method can effectively prevent cracks from appearing on the surface of the pole piece.

The invention discloses an additive manufacturing powder bed preheating system and method based on hot air-partition radiation synergy. The additive manufacturing powder bed preheating system comprises a preheating outer box, a powder bed, a hot air circulating system, a partition radiation heating system and a layering synergy controller. The method has the beneficial effects that an upper-layer steady-state optimization and lower-layer dynamic compensation framework is adopted, wherein the upper layer aims at energy efficiency and temperature uniformity, and the temperature and the air speed of a hot air inlet are optimized; and the lower layer is based on real-time temperature feedback, the partition radiation power is adjusted through a feedback + feedforward decoupling algorithm, local temperature disturbance is compensated, hot air rapidity and partition radiation accuracy are fused, the problems of response lag, space coupling and laser preheating cooperation deficiency are solved, rapid, uniform and dynamic regulation and control of the temperature field of the powder bed are achieved, the additive manufacturing quality is improved, and the production efficiency is improved. The method is suitable for high-precision manufacturing of various high polymer materials.

The invention discloses a method for preparing oxide eutectic ceramics in an ultrafast high-temperature furnace. Proportioning the raw material powder according to the eutectic components, and sequentially carrying out ball milling, drying, sieving and compression molding; putting the green body into a thin-wall graphite crucible, and putting the thin-wall graphite crucible into an interlayer hole of a heating carbon felt element; and heating to a set temperature in an ultrafast manner, keeping the temperature for an extremely short time, and cooling to obtain the oxide eutectic ceramic. According to the method, the eutectic structure of the oxide ceramic is rapidly formed by adopting ultrafast heating and Joule heat radiation heating at the furnace temperature far lower than the eutectic temperature, and the structure morphology of the eutectic ceramic can be regulated and controlled by adjusting temperature parameters. The obtained eutectic structure is fine in size and excellent in mechanical property; the problems that an existing oxide eutectic ceramic preparation method is long in consumed time, high in cost, complex in bulk material preparation process and the like are solved.

The invention discloses a thermal gradient high-temperature test device for a blade profile characteristic simulation sample, and belongs to the field of mechanical property tests. The device specifically comprises a test furnace body, a cooling mechanism, an optical radiation mechanism and a non-contact measurement device, the cooling mechanism is arranged outside the test furnace body and is used for cooling the test piece in the test furnace body through the flow channel; a light radiation mechanism is also arranged in the test furnace body and is used for carrying out light radiation heating on the outer wall of the test piece; meanwhile, a movable sliding rail is arranged in the test furnace body and is used for adjusting the position of the optical radiation mechanism, so that test pieces with different sizes and specifications can be matched. The non-contact measuring device dynamically measures the displacement of the test piece, records the temperature distribution and the deformation condition of the test piece in detail, and monitors the stress-strain state of the test piece in real time. According to the invention, accurate control and simulation of a complex temperature gradient are realized for a test piece with an irregular shape; through integrated non-contact measurement, the device is suitable for multi-parameter synchronous measurement and analysis in a complex environment.

According to the columnar granular activated carbon preparation process adopting the multifunctional belt type microwave activation furnace, activated carbon is prepared through a post-forming method, compatibility and stability of raw materials are optimized through a multi-stage heating mode, shape and size consistency of the activated carbon is ensured through granulation equipment, and the columnar granular activated carbon is prepared through a microwave radiation heating process. Under a static state without an activating agent, non-differentiated efficient activation of a semi-finished product is realized, the activation uniformity and quality uniformity of the activated carbon are ensured, and pollution-free continuous production is realized. The invention also provides biomass columnar granular active carbon which has high specific surface area, excellent adsorption performance, mechanical strength and durability after being activated by a multifunctional belt type microwave activation furnace, and has wide application prospects in the fields of air purification, solvent recovery, liquid decolorization, catalyst loading, organic gas protection, waste gas treatment, water purification industry and the like.

The invention provides an interference area thermal environment simulation test device and method based on radiation and convection coupling. The interference area thermal environment simulation test device comprises a convection heating system, a radiation heating system, a test section, a model support and a vacuum system. The aerodynamic heat environment of a non-interference area is simulated through the convection heating system, and a local high heat flow interference area is formed by the radiation heating system through the water-cooling filter plate, so that independent control and coupling simulation of heat flows of the two areas are realized. According to the method, heat flow parameters of a non-interference area and an interference area are debugged step by step, and multiple test steps are connected in series to complete all-working-condition assessment. The method can accurately reproduce the high-heat-flow gradient characteristics of the local area of the surface of the aircraft, overcomes the limitation that a traditional test method cannot simulate the high-heat-flow gradient, remarkably improves the authenticity and refinement level of a ground test, provides reliable data support for the design of a heat-proof structure of the hypersonic aircraft, effectively reduces the design redundancy, and improves the design efficiency. And flight safety is guaranteed.

A pool system may include a solar heating system for heating water of a swimming pool or spa comprising. The solar heating system includes a collector which may receive water from the swimming pool or spa and heat a flow of water from the swimming pool or spa using solar radiation. The solar heating system includes one or more control devices, which may control a flow rate of water through the solar heating system and / or a pressure of water through the solar heating system.

The invention belongs to the technical field of indoor heat supply, and relates to an indoor far infrared heat supply device which comprises a control system, a photovoltaic power generation device and a heat supply terminal, the photovoltaic power generation device and the heat supply terminal are electrically connected with the control system, and the photovoltaic power generation device is electrically connected with the heat supply terminal; the heating terminal comprises a far infrared floor heating system and an auxiliary heating device, the far infrared heating system is installed below a floor, and the auxiliary heating device is installed on the upper portion of the floor and can move; the far infrared floor heating system sequentially comprises a heating layer, a heat insulation layer and a reflecting layer from top to bottom, the heating layer is used for generating far infrared rays and heating the interior of a room through radiation, the heat insulation layer is used for preventing heat generated by the heating layer from losing downwards, and the reflecting layer is used for reflecting the heat lost downwards back to the interior of the room. The mode of photovoltaic power generation and far infrared heat supply is adopted for indoor heat supply, the remarkable energy-saving and emission-reducing effects are achieved, and meanwhile the comfort degree of indoor heat supply is improved.

A measuring device for determining a distribution of a heat transfer medium on an inner wall of a shaftless container which rotates when used to heat the heat transfer medium with concentrated solar radiation in a solar thermal power plant or as a rotary kiln includes a distance measuring device for determining a thickness of a film of the heat transfer medium on the inner wall of the container. The distance measuring device includes at least one optical device for detecting at least one height profile along at least one measurement line projected onto the inner wall and at least one position transducer for determining a current rotational position of the respective measurement line on the inner wall. A method for determining a distribution of a heat transfer medium on an inner wall of a shaftless container is also provided.

This utility model relates to the field of cast iron pot mold technology and discloses a multi-temperature zone circulating preheating heating device for cast iron pot molds. It includes a base, with support columns symmetrically fixedly connected to the top of the base in all directions. A fixed seat is fixedly connected to the top of each of the four support columns. A pressing and heating mechanism is provided on the top of the base. Multi-temperature zone differentiated heating is achieved through a combination of an electromagnetic induction coil and an infrared radiation heating tube. The electromagnetic induction coil is arranged between the bottom of the lower mold base and the inner mold, using the principle of electromagnetic induction to rapidly heat the bottom of the mold, suitable for efficient heating of thick-walled parts of the cast iron pot mold. The infrared radiation heating tube is located between the lower mold base and the inner mold, above the heat insulation ring, and can uniformly radiate heat to the sidewalls of the mold. The combined effect of these two methods significantly shortens the preheating time compared to traditional single heating methods, while simultaneously meeting the temperature requirements of different parts of the mold, effectively improving production efficiency.

The utility model relates to the technical field of radiation air conditioners, in particular to a radiation heating system based on a multi-split unit. The system comprises an outdoor heat source module, a fluorine water heat exchange module and an indoor tail end module. The outdoor heat source module comprises an outdoor main machine of the multi-split unit and a refrigerant circulating pipeline; the fluorine water heat exchange module comprises a fluorine water plate heat exchanger, an expansion valve, a circulating water pump, a radiation tail end water supply pipeline and a radiation tail end water return pipeline; the indoor tail end module comprises a radiation tail end water segregator, a radiation tail end water collector, a fan coil and a radiation plate. A solar auxiliary preheating loop is further integrated, comprises a solar heat collector and a solar water tank, and is used for preheating a water source and reducing operation time and energy consumption of the multi-split air conditioning system. According to the system, the problem of heating discontinuity caused by the heating initial stage and the defrosting mode is solved through the modes of solar preheating, radiant heating and the like, the indoor thermal comfort is improved, and the energy efficiency ratio of the system is increased.

The invention discloses an automatic small evaporator, which belongs to the technical field of evaporation measurement and comprises an evaporation dish, an evaporation weighing device, an overflow cylinder, an overflow weighing device, a protection box, an evaporator bracket, a control unit, a rainwater collecting cylinder, a rainwater collecting weighing device and a rainwater collecting cylinder bracket. Weighing measurement and data processing are completed through automatic control of the control unit, the rain collecting cylinder and the rain collecting weighing device are designed, the function of measuring precipitation and evaporation in the same place is integrated, and evaporation calculation errors caused by uneven precipitation distribution are avoided; by installing the grid mesh, errors of water drinking and water splashing of birds are avoided under the condition that water surface ventilation and natural illumination are not affected; by designing a double-layer device wall evaporation dish, filling a heat insulation material in an interlayer and spraying ceramic microbead heat insulation coatings on the inner and outer device walls, the influence of solar radiation temperature increase on the evaporation measurement precision is effectively avoided. According to the invention, automatic measurement of the small evaporator is realized, and the measurement precision is greatly improved.

The utility model relates to the technical field of gas heating, in particular to a combustor outdoor installation type high-power gas radiation heating device which comprises an installation plate, one side of the installation plate is connected with four groups of radiation heating device bodies which are mutually symmetrical, and a plurality of groups of radiation frames are arranged at the ends, away from the installation plate, of the radiation heating device bodies. When a radiant tube with gas leakage needs to be maintained and replaced, a sliding plate slides along an adjusting groove, so that a positioning pin is pulled out of a positioning hole formed in a mounting rod, then the mounting rod slides along a mounting groove, the mounting rod is moved out of the mounting groove, dismounting of the radiant heating device body is completed, then a limiting bolt is rotated, and the radiant tube with gas leakage can be maintained and replaced. When the radiant tube needs to be replaced and maintained, limiting of the limiting plate by the limiting bolt is relieved, then the limiting plate slides to be pulled out of the fixing sleeve, and then the radiant tube needing to be replaced and maintained is taken out of the radiant frame, so that the radiant tube is conveniently maintained.

The invention discloses switchable thermal management-self-energized sensing integrated high-breathability leather as well as a preparation method and application thereof, and belongs to the technical field of functional leather and intelligent wearable equipment. The radiation cooling side and the radiation heating side are designed on the two sides of the leather base body respectively, the radiation cooling side is composed of a porous bonding layer and an electrostatic spinning radiation cooling fiber membrane, and a through pore channel is formed to improve the moisture permeability efficiency; the radiation heating side achieves the efficient heating function through the vapor deposition photo-thermal polymer, the leather can autonomously switch the cooling mode or the heating mode according to the environment temperature and humidity through the combination of the two, meanwhile, self-energy-supply sensing is achieved through the integrated preset electrode, and human body movement can be monitored through the triboelectric effect without an external power source. The dynamic thermal management capability can adapt to seasons and day and night temperature differences, the limitation of a traditional single function is broken through, the problems that a coating is blocked, inorganic materials are prone to falling off, air permeability is reduced and the like are solved, and a multifunctional integrated solution is provided for intelligent wearable equipment.

This utility model relates to the technical field of heating equipment for livestock farming, and discloses an infrared radiation plate for pig nursery pigs, including a shell and a first heating element. The first heating element is located inside the shell and is attached to the inner front wall of the shell. Compared with heating tubes, the first heating element provided by this utility model can provide a uniform heating effect for the infrared emitting plate, and the radiant heating area is large. Therefore, it is not necessary to use multiple heating tubes to heat the living environment of the nursery pigs, which can avoid the problem of increased pig farming costs due to increased purchase costs of heating plates. Moreover, the infrared emitting plate provided by this utility model has a simple structure, and users can directly plug it in after delivery, eliminating complicated installation procedures. In the humid and regularly disinfected environment of the pig farm, the service life of the infrared emitting plate is longer than that of heating tubes, which can greatly reduce the equipment investment of pig farming enterprises.

The invention belongs to the technical field of dairy product processing equipment, and particularly relates to an adjustable anti-solidification liquid storage tank for dairy product processing, which comprises a liquid storage shell, an inner container is sleeved on the inner arc surface of the liquid storage shell, and a bent connecting plate is arranged on the liquid storage shell close to the inner container. An infrared radiation heating layer is arranged between the bent connecting plate and the inner cambered surface of the liquid storage shell, an insulating heat preservation layer is arranged between the bent connecting plate and the inner container, a junction box is fixedly installed on one side of the outer cambered surface of the liquid storage shell through bolts, and binding posts are connected to the surfaces of the upper side and the lower side of the junction box. Through the synergistic effect of the electromagnetic heating assembly and the heat conduction exchange piece, the heat conduction exchange piece can utilize waste heat of the coil panel base and directionally conduct the waste heat to the magnetic conduction plate, secondary utilization of the waste heat is achieved, the heat conduction exchange piece, the infrared radiation heating layer and the auxiliary heating element form multi-dimensional heating cooperation, the overall heating efficiency is improved, the heating intensity can be flexibly adjusted and controlled according to raw material requirements, and the energy consumption is reduced. The raw materials are stored at a proper temperature, and solidification is effectively prevented.

The invention relates to a preparation method of a graphene / nano bacterial cellulose composite material, which comprises the following steps: (1) dispersing nano cellulose and graphene in an aqueous medium to form a uniform suspension; (2) constructing a three-dimensional porous skeleton through freeze drying; the preparation process is simple and controllable, only through the carbonization temperature and time regulation function, complex chemical modification or a multi-layer composite structure is not needed. The raw materials are green and low in cost, the cellulose source is wide (such as wood pulp and straw), and no precious metal or high-pollution reagent exists in the carbonization process. The device is suitable for roll-to-roll continuous carbonization (such as infrared radiation heating) and is compatible with an existing carbon material production line.

The utility model discloses a carbon black combustion tail gas boiler with an in-boiler heat storage stable combustion device, and belongs to the technical field of tail gas boiler devices. A carbon black tail gas burning boiler with an in-boiler heat storage stable burning device comprises a boiler body and further comprises a burner fixedly connected in the boiler body and used for burning carbon black tail gas fuel. The in-furnace heat storage stable combustion device is fixedly connected into the boiler, and the combustion flame is within the range of the in-furnace heat storage stable combustion device; the hearth heating surface is fixedly connected in the boiler; the utility model is provided with an in-furnace heat storage stable combustion device. The in-furnace heat storage stable combustion device mainly comprises a heat storage material, a refractory material, a heat preservation material and the like, the in-furnace heat storage stable combustion device has a heat storage function in a combustion flame range, the combustion efficiency can be enhanced, meanwhile, a sufficient radiation heating area is provided for the hearth membrane water cooling wall without laying the refractory material, and the heat absorption rate of the boiler hearth is guaranteed.

The utility model discloses an experiment table for researching thermal performance of various floor radiant heating systems, and relates to the technical field of floor radiant heating experiments. Comprising an artificial environment chamber used for simulating an outdoor environment, a box body and a refrigeration compressor unit are arranged in the artificial environment chamber, a control cabinet is arranged outside the artificial environment chamber, and an experiment assembly is arranged in the box body; the box body comprises a bottom plate assembly, and the bottom plate assembly is detachably connected with a side plate assembly. According to the utility model, through the bottom plate assembly and the side plate assembly, rapid building can be carried out in an artificial environment room, determination can be carried out through the bottom plate assembly and the side plate assembly according to parameters such as pipeline layout, water supply temperature, system capacity and the like in the floor radiation heating system, and the performance of the floor radiation heating system is verified; therefore, the stability and the reliability of the system in actual operation are ensured.

The utility model discloses full-electric-drive ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing equipment, which comprises a control box, a feeding assembly, a pressure forming execution unit, a discharging assembly and an electric control cabinet, and adopts an infrared radiation heating mode to carry out rapid non-isothermal heating on a glass prefabricated part. And an ultrasonic vibration element and a pressure sensing element are arranged in the lower mold base of the mold pressing station, and when the prefabricated part is heated to a softening point, the ultrasonic vibration element is started to cooperatively work with an infrared heating technology, so that the filling speed and quality of glass mold pressing forming are improved. The full-electric driving technology is used, the control precision and the die pressing forming efficiency are high, in addition, compared with a traditional glass die pressing machining mode, the infrared heating element and ultrasonic vibration cooperative work machining technology achieves precise and efficient machining of a glass prefabricated part, the problem of interference of heating and vibration in traditional die pressing is solved, and the production efficiency is improved. And the forming precision and efficiency of the product are improved.

The cooking utensil comprises a pot body and a cover body, an inner pot with a cooking cavity is arranged in the pot body, a heating piece is arranged at the bottom of the inner pot, an infrared heating piece used for radiating infrared rays to the cooking cavity is arranged on the side portion of the pot body, the infrared heating piece comprises a tubular body and a wiring terminal arranged at the end of the body, and the wiring terminal is connected with the inner pot. At least one infrared heating piece is arranged, the bodies are arranged around the outer side wall of the inner pot, and the ends of every two adjacent bodies are arranged in an overlapped mode so that an annular heating area can be formed on the outer side of the inner pot. The ends of the two adjacent bodies are arranged in an overlapped mode, no obvious low-radiation area exists, the heating effect of the whole circle is basically consistent, 360-degree dead-corner-free radiation heating can be conducted on the inner pot, food materials at all positions in the circumferential direction can receive enough infrared radiation, the uniformity of infrared heating is improved, and the heating efficiency of the inner pot is improved. The aroma enhancement effect of the food materials can be improved, and the taste consistency of the food materials is improved.

The application provides a device and method for non-direct contact non-destructive repair of damaged water pipes, which comprises a magnetic attraction end device and a crack repair material. Under the action of a magnetic field applied by the magnetic attraction end device, the magnetic powder in the crack repair material flows under the action of magnetic force and can be accurately attached to the damaged position of the water pipe to be repaired, so as to attach and wrap the crack. After the switch is turned on and the radiation heating pipe is powered, the damaged position to be repaired can be heated to accelerate the solidification of the crack repair material. After the crack repair material is completely solidified, the radiation heating pipe is continuously powered to dry the water leaking from the damaged position of the water pipe, so as to prevent water from seeping into the surrounding environment and causing erosion. The device used in the method is simple to operate and fast in repair, and can quickly repair the non-direct contact damaged water pipe without damaging the surrounding environment, thereby saving a large amount of manpower, material resources and financial resources.

The utility model discloses a double-core four-lamp air heating type heater which comprises a heating bulb, a fixing seat, a PCT heating block, an air blowing opening, an upper cover, a through hole, a bulb groove, a heat dissipation opening, a base and a screw hole. The base is internally provided with a first motor groove and a second motor groove, the first motor groove is internally provided with a first heat dissipation grid and is fixedly connected with an air heating motor, the second motor groove is internally provided with a second heat dissipation grid and is fixedly connected with an air exchange motor, and the base is fixedly connected with a positioning plate; according to the utility model, a modular structure is designed, efficient and rapid heating is realized, heating efficiency is improved, dual-core synergistic heating is realized, four-lamp auxiliary radiation is realized, a heat coverage range is expanded, and room temperature layering is reduced; an air supply module and a built-in high-speed fan are positioned at the bottom of equipment and are responsible for sucking cold air, heating through a heating module and rapidly blowing out hot air through an air duct; functional integration is achieved through modular design, rapid convection heating and directional radiation heating are both considered, and heat efficiency balance is guaranteed.

The invention relates to a method for evaluating fuel gas jet radiation heating, which comprises the following steps of: defining a jet boundary as a semi-cylindrical outer surface and an arc surface outer surface which have the same diameter as a nozzle outlet according to a flight height, and determining the arc surface outer surface by calculating an initial expansion angle, a radius of an arc, a Mach number of the nozzle outlet and a Prandt-Myer angle; calculating the angle coefficient of each point at the bottom when the jet flow boundary is the semi-cylindrical outer surface; carrying out engine ground test run, measuring the radiation heat flow of the engine, estimating the angle coefficient of the bottom heat flow measuring point position and the jet radiation heat flow, correcting the fuel gas equivalent blackness, and calculating the radiation heat flow of each point when the jet boundary is the semi-cylindrical outer surface and the radiation heat flow of each point when the jet boundary is the arc surface outer surface; according to the method, high-temperature fuel gas jet flow field calculation and high-temperature gas spectrum radiation characteristic and transmission calculation do not need to be carried out, and engineering rapid prediction of radiation heating of the aircraft tail mounting object is realized by utilizing ground engine test run test measurement data association.