467 results about "Radiation heating" patented technology

The invention, which relates to the technical field of fire safety, discloses a variable-angle solar panel heating test system comprising a sample loading and observation mechanism, a fire performance analysis mechanism and a radiation heating mechanism. The sample loading and observing mechanism is used for fixing samples with different sizes, adjusting the height and angle of the samples and observing and measuring sample data; the fire hazard performance analysis mechanism is located above the sample loading and observation mechanism and is used for collecting and analyzing smoke and mass loss generated by the heated sample and outputting fire hazard key parameters; the radiation heating mechanism is positioned in front of the sample loading and observing mechanism and is used for providing a real-time heat source for the sample. The device can test the change of the fire performance of the sample under the action of uniform and non-uniform external heat sources in real time, can conveniently switch the heating angle, the heating area, the size and the thickness of the sample, synchronously observes the crack diffusion process, and has the advantages of simple structure, convenience in operation and the like.

The invention discloses high-entropy rare earth ceramic powder as well as a rapid preparation method and application thereof. The rapid preparation method of the high-entropy rare earth ceramic powder comprises the following steps: 1) uniformly mixing rare earth oxide powder with one of HfO2 powder, ZrO2 powder, Ta2O5 powder and SiO2 powder to obtain mixed powder; and 2) carrying out laser radiation heating on the mixed powder to obtain the high-entropy rare earth ceramic powder. The high-entropy rare earth ceramic powder has the excellent characteristics of uniform element distribution, no impurity phase, large synthetic component space and the like, and the preparation method has the advantages of universality, simplicity, rapidness, high efficiency and the like, can realize the purpose of high-throughput material screening, is suitable for being used on hot end parts of aerospace engines, and has a very wide application prospect.

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 an automobile heat management system and a control method thereof. The automobile heat management system comprises a compressor, a condensation heat exchanger, a throttling device and an evaporation heat exchanger which are communicated to form a refrigerant circulation loop; the in-vehicle cold air heat exchanger can exchange heat with the evaporation heat exchanger or the condensation heat exchanger through the cold carrying pipeline so as to conduct convection refrigeration or convection heating on the interior of the vehicle. The radiation heat exchanger can exchange heat with the evaporation heat exchanger or the condensation heat exchanger through a cold carrying pipeline so as to carry out radiation refrigeration or radiation heating on the interior of the vehicle; the seat heat exchanger can exchange heat with the evaporation heat exchanger or the condensation heat exchanger through the cold carrying pipeline so as to conduct conduction refrigeration or conduction heating on the seat. The problems that when a traditional automobile air conditioning cabinet adopts an indirect heat exchange system, due to the introduction of an intermediate heat exchange process, the heat exchange capacity is insufficient, the energy efficiency is poor, temperature adjustment of a passenger compartment cannot be met under high loads, and energy consumption is high can be solved.

The utility model provides a limb incubator, and belongs to the technical field of medical instruments. Comprising a box body, a front end cover plate is clamped to the front end of the box body, a rear end cover plate is clamped to the rear end of the box body, an observation cover is fixedly connected to the middle of the box body, a bottom plate is fixedly connected to the bottom of the box body, a bracket is arranged on the top of the bottom plate, and a heating pad is laid on the top of the bracket. The heating pad is arranged, the heating pad conducts contact heating on an affected limb, compared with a radiation heating method of a baking lamp and an ultraviolet lamp, the contact heating can better guarantee the temperature stability, the influence of the room temperature on the affected limb is small, the affected limb is lifted through the bracket, blood circulation is promoted, and postoperative recovery is facilitated; when an affected limb moves on the bracket or collides with the bracket, the bracket can buffer the affected limb, the comfort of a patient is improved, meanwhile, the bracket can deform to drive the height of the bracket to change, the function of adjusting the height of the bracket is achieved, and the comfort of the patient is further improved.

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 utility model discloses a radiation heating plate and a heating appliance thereof, the radiation heating plate comprises a heating wire, a mica winding plate and a mica substrate, the heating wire is wound on the mica winding plate, all sections of the heating wire located on the same surface of the mica winding plate are mutually separated, the mica substrate is connected to one side of the mica winding plate, and the mica substrate is connected to the other side of the mica winding plate. And the heating wire is also connected with the electrode. The radiation heating plate is mainly composed of the mica sheet and the heating wire, the cost is low, the weight is light, the thickness is small, the heating wire is directly wound on the mica winding plate (mica plate), and the process is simple; moreover, the heating wires on the two sides of the mica wire winding plate are separated by the mica wire winding plate, the heating wires on the same surface of the mica wire winding plate are separated from one another, the problems that energy is concentrated and fusing is prone to occurring due to the fact that the heating wires get close to one another are solved, most heat radiated downwards is blocked by the mica substrate, and loss is reduced.

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 utility model discloses an evaporator assembly and a refrigerator, and relates to the technical field of refrigeration electric appliances. According to the embodiment of the utility model, the evaporator assembly comprises a bracket, an evaporator and a heating pipe, the evaporator is mounted on the bracket; the heating pipe is arranged on the support and used for heating and defrosting the evaporator, and a heating core of the heating pipe is a resistance sheet so as to form radiation heating on the evaporator. Due to the fact that the resistor sheet has the directional heating performance, more heat is radiated to the area needing to be heated, the radiation quantity of the area not needing to be heated is small, heat loss is reduced, and meanwhile loss and the like caused by heating of the area not needing to be heated are avoided. The heating core made of the resistance sheet is adopted, more heat is emitted in a radiation mode in the heating process, the propagation path for transmitting the heat out through electromagnetic wave radiation is short, and heat loss is low in the propagation process. Therefore, according to the heating structure, the deicing and defrosting efficiency can be improved, the heat loss is reduced, and the loss caused by heating of the area which does not need to be heated is reduced.

The invention discloses a steel forming straightness control method for an engineering machinery suspension arm and the engineering machinery suspension arm, a direct installation mode is adopted in a hot rolling heating stage, the temperature of a high heat section is 1300 + / -20 DEG C, and the time of the high heat section is 70-140 minutes; in the rolling stage, a front rack oversized reduction + F7 flexible micro-medium wave compensation strategy is adopted for rolling production; in the cooling stage, ultra-fast cooling and air cooling are adopted for cooling to the coiling temperature; the heat treatment process adopts a vacuum radiation heating method for tempering. The thickness of the prepared steel plate is 2.55-5.01 mm, the length of the prepared steel plate is 5.5-6.5 m, the strength grade of the prepared steel plate is 765-845 MPa, the prepared steel plate is used for manufacturing a telescopic suspension arm of an engineering machinery overhead working truck, after the steel plate is integrally bent and formed, the straightness of a part in the length direction is smaller than or equal to 3 mm / L, and the problem that the straightness of the suspension arm is out of tolerance after high-strengthening, light-weight and environment-friendly manufacturing of engineering machinery is effectively solved.

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 provides a multispectral temperature measurement reflected light characterization calibration device and method based on an infrared sensor in a transient radiation heating environment. The device comprises a water cooling radiator, a multispectral thermodetector, a heater, the infrared sensor and a supporting device. And establishing a spectral radiance matrix database of heater reflected light interference based on the infrared light current signal as an index. In the test process, the reflected light interference of the heater can be obtained in real time through the database according to the light current of the heating element tested by the infrared sensor, and the reflected light interference of the heater can be removed in real time in the algorithm by combining with the spectral emissivity model of the material, so that the real temperature of the surface of the thermal structure can be obtained. According to the invention, the problem of interference of reflected light of the heater on characterization and real-time correction in a transient radiation heating environment is solved, and the temperature measurement precision is improved.

The method according to the invention relates to heating a fluid in an electrical heating device (80) via the infrared radiation of an infrared-radiating surface. The heating device (80) has a resistance heating element arrangement (12) comprising resistance heating elements (13), the surfaces of which form the infrared radiating surface and emit infrared radiation into an absorber chamber (16) through which the fluid to be heated flows. The fluid comprises an infrared-absorbing gas and heats up by absorbing the infrared radiation (15). At high temperatures, non-inert gases, i.e. a non-inert fluid, have a corrosive effect on resistance heating elements (13). A protective gas arrangement (82) prevents corrosive fluid from coming into contact with the resistance heating elements (13).

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 utility model discloses a drying machine, which belongs to the field of shoe machines and is characterized in that an air pump is arranged, the internal space of a machine body is divided into an air supply area and a working area by a partition plate, air flow is formed in the machine body, and harmful substances such as formaldehyde are promoted to be adsorbed or decomposed through a filter and a light reaction lamp. The light radiation heating in the working area can be conducted into the air, so that the heat in the machine body is increased, if the high-temperature air is directly released into the air, the heat loss is caused, and the harmful substances in the hot air in the machine body are absorbed or decomposed, so that the heat loss is reduced; and then the air is sent back into the machine body, so that internal circulation of the air is realized, the energy input required for heating the air in the machine body is reduced, and the purpose of producing the same things is achieved, but the consumed energy is 60-80% of the original energy.

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.

The invention discloses a heating and heat dissipation bidirectional personal heat management fabric and a preparation method thereof, and belongs to the technical field of heat management fabric design. A photonic crystal coating with an amorphous structure is mainly sprayed on the surface of the fabric, so that the reflectivity of the fabric in a visible light near-infrared band and the emissivity of the fabric in a middle-infrared band are improved, and meanwhile, thermal-burden-free physical coloring is realized on the surface of the fabric, so that the requirements of diversification and attractiveness of the fabric are met; the other side of the fabric is coated with a low-emissivity MXene nanosheet, the passive radiation heating performance, the photothermal conversion performance and the Joule thermal performance of MXene are used for achieving heating thermal management of the fabric, dynamic personal thermal management is achieved through the fabric, the temperature of the fabric can be reduced by 10.2 DEG C in summer compared with the temperature of simulated human skin, and the temperature of the fabric can be reduced by 10.2 DEG C in summer. The temperature of 21.4 DEG C is increased in winter in combination with the multi-mode heating effect, and higher flexibility is provided for personal heat management under different environment conditions.

The invention relates to the technical field of lithium ion battery positive electrode materials, and discloses a single crystal lithium nickel manganese oxide synthesized by a multi-stage stepped sintering method and a preparation method thereof, and the single crystal lithium nickel manganese oxide is characterized in that a synthesis temperature curve has a plurality of steps, i.e., a stage of rapidly rising the temperature of a material for many times and then decreasing the temperature occurs in a temperature rising process. The method specifically comprises the following steps: heating mixed raw materials for a short time by utilizing infrared radiation heating to discharge a water atmosphere; biofuel and fossil fuel are utilized, mixed raw materials are heated for a short time, decomposition of lithium carbonate is accelerated, and gases such as CO2 which are not beneficial to synthesis of lithium nickel manganese oxide are discharged; the growth of single crystal lithium nickel manganese oxide is accelerated by using a gradient thermal field; and heating and cooling again in the cooling stage to obtain the single-crystal lithium nickel manganese oxide. The single-crystal lithium nickel manganese oxide has good processing performance, and shows better cycle performance and high-temperature shelving performance.

A thermoforming device (1) is provided for performing a heating process of radiationally heating a resin film (4) to a predetermined temperature (C21) by a radiation heater (6) and a bonding process of bonding the radiationally heated resin film (4) to a pulp mold (10) set on a base (52). The thermoforming device (1) is provided with a vacuum pump (7) to evacuate a space between the pulp mold (10) and the resin film (4) to bring the resin film (4) to be in close contact with the pulp mold (10) in the bonding process. The radiation heater (6) is changeable in its distance to the resin film (4) between a first heating position to perform radiation heating of the resin film (4) in the heating process and a second heating position to perform radiation heating of the resin film (4) in the bonding process.

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.

The invention relates to a dedusting method of granular polycrystalline silicon, the granular polycrystalline silicon is treated by adopting a microwave radiation heating mode, in the microwave heating process, due to the difference of micro-nano silicon powder and large-particle-size particles in microwave absorption, micro silicon powder is more easily melted and adhered to the surfaces of the large particles, so that the scattering of the micro silicon powder is effectively reduced, and the dedusting effect of the granular polycrystalline silicon is improved. According to the method, the granular polycrystalline silicon is heated in a vacuum or inert atmosphere through a tubular microwave oven, the temperature can be adjusted to 600-1200 DEG C, and the treatment effect is optimized by controlling the power and the heating rate. Compared with a traditional heat conduction heating mode, the microwave heating technology provided by the invention not only can quickly reduce micro silicon powder in the granular polycrystalline silicon and obviously reduce the turbidity value to be below 5NTU, but also has the advantages of low energy consumption and high efficiency, and the treatment cost is greatly reduced. According to the dust removal method for the granular polycrystalline silicon, an efficient and environment-friendly dust removal solution is provided for the polycrystalline silicon industry.

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 provides a large heat flow test control method for model prediction compensation, which takes a graphite heating finite element model as a prediction model for large heat flow test system control, and comprises the following steps of: firstly, expressing a radiation heating process of a test piece by using a graphite heating element according to a virtual work principle; establishing a transfer function between input electric power and output radiation heat of a controlled object, and substituting a temperature field, which is obtained by calculation of the prediction model and changes along with time, of graphite heating into closed-loop control of a test system; and finally, establishing a time sequence prediction model, comparing a test heating target temperature field, predicting an error generated by a test system, applying the error as an input to a controller of the system, and carrying out pre-adjustment compensation on controller parameters. According to the large heat flow test control method for model prediction compensation provided by the invention, the problems of large inertia, nonlinearity and time-varying control of a thermal test system formed by graphite heating elements are solved, and the construction accuracy of a ground aerodynamic thermal simulation test environment is ensured.

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.