226 results about "Radiation heating" patented technology

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 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.

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 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.

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.

A heat treatment system (100) for solid bulk material in pieces having a tower configuration and mainly comprising: - a plurality of belt conveyors (11-15) for the dry transportation of the bulk material, which belt conveyors have a stacked arrangement one above the other and thermally in series, each of said belt conveyors being configured to transport the bulk material transversely to the stacking direction; - one or more heater devices (31-35) arranged at each belt conveyor of said series to heat, e.g. by radiation, the bulk material transported thereupon; - a plurality of material discharging conduits (21-25), each interposed between an upstream belt conveyor and a downstream belt conveyor adjacent thereto in said series arrangement.

The application belongs to the field of high-temperature heat strength test, and particularly relates to a low-oxygen environment box of a radiation heating device and a control method thereof. The low-oxygen environment box of the radiation heating device comprises an external environment box and an internal heating device, a quartz lamp radiation heating device is installed in the environment box, nitrogen is injected into the environment box through a gas path interface on a bakelite plate to maintain a low-oxygen environment in the environment box, the oxygen content in the environment box is controlled by adjusting the air inlet and outlet volume, and the low-oxygen environment box is used for heat performance test of a test piece in a low-oxygen environment; the test piece is installed in a heat insulation frame, the heat insulation frame is installed on a water cooling plate by means of a clamping groove, the water cooling plate can slide along a guide rail under the drive of a support plate, the distance between the test piece and the quartz lamp tube is conveniently adjusted, and the test piece is quickly replaced; a front side baffle of the environment box is a bakelite plate, and the bakelite plate is connected with the outside through a circuit interface, a water path interface, a gas path interface and a measurement connection plate.

A radiation-free heating pad and a processing technology thereof is provided. The radiation-free heating pad includes heating wires, a fiber layer, a flexible shielding layer, and a reinforcement layer. The heating wires are uniformly arranged on the fiber layer in a serpentine pattern, a layer of aluminum foil is arranged on each of an upper side and a lower side of the fiber layer, and the aluminum foil tightly wraps the heating wire. The flexible shielding layer is arranged outside the aluminum foil, and the reinforcement layer is arranged outside the flexible shielding layer. The radiation-free heating pad is based on the Faraday cage effect, and an electromagnetic field generated when an electric current passes through the heating wire can be effectively counteracted by a double shielding structure composed of the aluminum foil and the flexible shielding layer.

This invention discloses a perovskite-type high-entropy ceramic material, its preparation method, and its application. The preparation method of the perovskite-type high-entropy ceramic material of this invention includes the following steps: 1) mixing A-site oxide powder and B-site oxide powder and wet ball milling, followed by drying and grinding to obtain a mixed powder; 2) adding the mixed powder into a graphite crucible and compacting it, then subjecting it to laser radiation heating to obtain the perovskite-type high-entropy ceramic material. The perovskite-type high-entropy ceramic material of this invention exhibits multi-band absorption characteristics, high service temperature, and stable performance at high temperatures, making it suitable for use in stealth coatings for aerospace vehicles. Furthermore, its preparation method is simple, with a short reaction time and low production cost, making it suitable for large-scale industrial production and application.

A heating tube with an insulator tube armored with low-temperature fused salt as a resistance heating body is characterized in that a low-temperature fused salt tube is arranged in the insulator tube with a certain length and a certain section geometric dimension, so that the fused salt in the insulator tube has a certain resistance value, and metal electrodes are inserted into two ends of the insulator tube to be in contact with the low-temperature fused salt; one end of the metal electrode is in contact with the low-temperature fused salt, and the other end extends out of the insulator tube to be sealed and packaged to form a heating tube with the insulator tube armored low-temperature fused salt as a resistance heating body; after the metal electrode is electrified, the solid-state low-temperature fused salt is used as a resistor body to be heated to be molten, solid-liquid phase change heat storage is performed, and the temperature of the low-temperature fused salt is always at the melting point temperature of the low-temperature fused salt through temperature control; the heating mode of the heating pipe taking the insulator pipe armored low-temperature fused salt as the resistance heating body to a heated object is a combined mode of a non-contact infrared radiation heating mode, a direct contact heat conduction mode and an infrared radiation heating mode. The infrared radiation heating mode is that the tube wall of the composite material insulator tube mixed with the high infrared radiation composite oxide powder performs infrared heating on a heated object, and the low-temperature fused salt is doped with the high infrared radiation composite oxide particles to perform infrared heating on the heated object.

The utility model provides an optimal measuring point detection system for a floor radiation heating terminal. Mobile measuring equipment comprises a Raspberry Pi master control module, a positioning module, an offline processing module, a sensor module and a display operation module. The mobile measurement equipment and the positioning base station equipment collect position information through positioning modules of the mobile measurement equipment and the positioning base station equipment, and the main positioning base station equipment collects the position information of the slave positioning base station equipment and the mobile measurement equipment and sends the position information to the Raspberry Pi main control module or the offline processing module according to the online or offline state of the system; the Raspberry Pi master control module obtains coordinate position information of the test point through the position information, and transmits the environment information and the coordinate position information of the test point to the display operation module for display. According to the utility model, by analyzing the heat distribution mode in the floor radiation heating system and through temperature collection and data comparison, the most ideal measuring point position is determined, so that the accuracy and representativeness of data collection are ensured, and the regulation and management of the whole heating system are optimized.

There is provided an aerosol generation article and an aerosol provision system. The aerosol generation article comprises: an aerosol generating substrate which forms an aerosol under a heating condition; at least one infrared radiation element, arranged within the aerosol generating substrate, generating infrared radiation by receiving heat and heating the aerosol generating substrate at least by radiation. In the present disclosure, an infrared radiation element is arranged in the aerosol generating substrate.

The invention relates to the technical field of vacuum sintering, and provides an infrared temperature measurement method for a formic acid vacuum furnace, which comprises the following steps: a jig is arranged in the formic acid vacuum furnace, an upper heating pipe and a lower heating pipe of the formic acid vacuum furnace are infrared radiation heating pipes, the jig is of a hollow structure, a workpiece to be measured is placed on the jig, and an upper cover of the vacuum furnace is provided with a plurality of temperature measurement components; a temperature measuring seat of the temperature measuring assembly is provided with an infrared temperature measuring sensor, and the infrared temperature measuring sensor measures temperature through a temperature measuring window; acquiring a plurality of first measurement temperature data; comparing the first measured temperature data with each other, and re-measuring if the first measured temperature data is greater than a threshold value; if so, averaging the first measured temperature data to obtain second measured temperature data; determining a temperature interval according to the second measured temperature data; determining an infrared radiation response value according to the temperature interval; and determining third measurement temperature data according to the infrared radiation response value and a temperature determination formula. The problem that an existing formic acid vacuum furnace is low in infrared temperature measurement precision is solved.

Capillary ceiling for extracting atmospheric water, comprising: • a multi-layered capillary structure for absorbing and conducting condensed moisture; • a reflective, silver-colored exterior to minimize heating from sunlight; • at least one fan, powered by solar panel and / or wind energy, to cool the ceiling surface and promote air circulation; • an integrated water reservoir that collects moisture conducted via capillary action; • a curved, smooth surface to prevent sand deposits; • a receiving and lifting system to prevent blockage by sand particles.

This utility model relates to the technical field of gas-fired infrared radiant heating devices, specifically a gas-fired infrared radiant heating device, comprising: a radiant tube installed on the main body of the gas-fired infrared radiant heating device, a wind guide plate rotatably connected to the side of the main body of the gas-fired infrared radiant heating device, and the wind guide plate being connected to the transmission end of a first servo motor; the beneficial effects are: opening the solenoid valve installed on the stainless steel pipe above the radiant tube, the jet nozzle ejects gas to accelerate the downward flow of hot air inside the reflector, reducing the phenomenon of higher temperature at higher levels and lower temperature at lower levels; activating the solenoid valve on the stainless steel pipe below the radiant tube, the jet nozzle ejects gas to clean the area below the radiant tube; closing the solenoid valve on the stainless steel pipe below the radiant tube, and opening the solenoid valve installed on the stainless steel pipe above the radiant tube, the jet nozzle ejects gas to clean the area above the radiant tube, thus achieving automatic cleaning of the radiant tube without the need for manual cleaning.

The utility model relates to the technical field of asphalt production, especially a kind of even heating device for polyurethane modified asphalt production, including, stirring bucket, for accommodating polyurethane modified asphalt;Agitating mechanism is set to the inside of stirring bucket, for stirring material, scrape the sidewall and bottom surface of stirring bucket;Conduction heating mechanism, it is around to set in the outside of stirring bucket, the inside of stirring bucket is heated by heat conduction oil conduction;And, radiation heating mechanism, the radiation heating mechanism is installed in the bottom of stirring bucket, the inside of stirring bucket is heated by infrared radiation, the utility model is guided to the heat conduction oil to be folded type path flow by folding type deflector, pass through turbulent disturbance and extend heat transfer path, so that heat is fully transferred, the heat transfer efficiency of heat conduction oil and stirring bucket wall is greatly improved, and the closed loop system of heat conduction oil furnace and circulating pump ensures that heat is continuously supplied and transported, so that heat transfer efficiency is greatly improved.

The application discloses a kind of heating and heat dissipation bidirectional personal thermal management fabric and preparation method thereof, belong to thermal management fabric design technical field.The main surface of fabric is sprayed with a layer of amorphous structure photonic crystal coating, the reflectivity of fabric in visible light near infrared band and the emissivity in mid-infrared band are improved, the physical coloring of no thermal burden is realized on the surface of fabric to meet the demand of diversification and beauty of textile, the MXene nanosheet of low emissivity is sprayed on the other side of fabric, the passive radiation heating performance, photothermal conversion performance and joule heating performance of MXene are used to realize the heating thermal management of fabric, the fabric of the application realizes dynamic personal thermal management, that is, compared with the temperature of simulated human skin, the temperature can be reduced by 10.2 DEG C in summer, and the temperature can be increased by 21.4 DEG C in winter by combining the heating effect of multiple modes, to provide greater flexibility for personal thermal management under different environmental conditions.

The invention discloses a wall body structure. The wall body structure comprises a foundation wall body; the heating wall plate is mounted on the basic wall body, the heating wall plate comprises a soaking layer and a base plate layer which are sequentially arranged from the back face to the front face, a groove is formed in the surface of the side, facing the soaking layer, of the base plate layer, and a heat exchange pipe is arranged in the groove; the supply and backflow assembly comprises a supply pipeline and a backflow pipeline, and the supply pipeline and the backflow pipeline are communicated with the heat exchange pipe. The invention further discloses a radiant heating system which comprises a heat source and any wall structure in the embodiment, the heat source communicates with the supply pipeline and the backflow pipeline, the heat source is used for feeding the heat exchange medium into the supply pipeline, and the heat exchange medium can finally flow back into the heat source along the supply pipeline, the heat exchange pipe and the backflow pipeline. Radiation heating can be formed on the surface of the wall of the building, and the beneficial effects of being convenient and fast to install, high in thermal comfort and convenient to maintain in the later period are achieved.

The application provides a sintering device for metal support type monomers, which comprises a box body and a heating component arranged in the box body; the heating component comprises a radiation heating unit, a support body protective clothing, a sintering monomer carrier and a cooling module arranged in sequence; and the sintering monomer carrier is used for supporting the sintering monomer. The radiation heating unit in the sintering device has high heating efficiency when heating the sintering monomer; the cooling module can keep the metal support of the sintering monomer in a low temperature zone, so that the oxidation-reduction reaction of the metal can be avoided. The application further provides a continuous sintering device for metal support type monomers, wherein the sintering monomer carrier is a movable structure similar to a conveying belt, so that the continuous and uninterrupted sintering of the sintering monomer can be realized.

The invention discloses an ice crystal icing test device and test method for an aero-engine. The ice crystal icing test device comprises a radiation heating device and a controller. And the radiation heating device is arranged at the upstream of the test piece in the conveying direction of the airflow. And the radiation heating device comprises a cylindrical outer cover and a radiation heater arranged on the inner surface of the cylindrical outer cover. And the inner cavity of the cylindrical outer cover is hollow, so that air flow reaches the test piece through the inner cavity. The airflow contains ice crystals, and the ice crystals are radiated and heated by the radiation heater in the inner cavity to be heated. And the controller is electrically connected with the radiant heater to control the work of the radiant heater. The ice crystal icing test device provided by the embodiment of the invention can simulate ice crystal icing conditions of an aero-engine more truly.