14 results about "Radiant heat transfer" patented technology

A substrate processing apparatus includes a processing container, a substrate support that is provided inside the processing container and supports a substrate, and a heating unit that heats the substrate supported by the substrate support. The heating unit includes a heater wire that transmits radiant heat to a periphery during heating, and a lens member that is provided at a position adjacent to the heater wire. The lens member is disposed between the substrate support and the heater wire to direct radiant heat toward a direction in which the substrate is located, and / or disposed between the processing container and the heater wire to direct radiant heat in a direction perpendicular to a surface of the processing container.

The present invention relates to a cryogenic storage tank equipped with an external evaporative cooling blocking device capable of simultaneously vaporizing liquefied gas and insulating the cryogenic tank, thereby ensuring thermal insulation performance and replacing a heat exchanger. A cryogenic storage tank equipped with an external evaporative cooling blocking device capable of simultaneously vaporizing liquefied gas and insulating the cryogenic tank according to one embodiment of the present invention may include: an inner tank for storing a cryogenic fluid and having one or more transfer pipes on one side for transferring the cryogenic fluid; an outer tank that surrounds the inner tank; a vacuum insulation layer for forming a vacuum space between the inner tank and the outer tank; and an evaporative cooling blocking device installed on the outer wall of the outer tank, which transfers radiant heat to the cryogenic fluid introduced through the transfer pipe to raise the temperature of the cryogenic fluid to room temperature.

A clamping system includes a workpiece clamp (102) having a platform (108) for supporting a workpiece (106) and a heating element (118) for heating the platform (108) to a platform temperature. A cooling plate (122) has cooling features to cool the plate. A vacuum chamber (128) defines a cavity volume between the platform (108) and the cooling plate (122). One or more radiation shields (140) within the cavity volume (128) can limit radiative heat transfer between the platform (108) and the cooling plate (122). A vacuum source (134) and a gas source (142) are selectively fluidly coupled to the cavity volume. The controller (156) controls the heat transfer between the control plate (108) and the cooling plate (122) by controlling the pressure in the vacuum chamber (128) via the vacuum source (134) and the gas source (142), thereby controlling the temperature of the control plate (104) in the high temperature range and the low temperature range.

A cooking apparatus includes: a main body configured to form a cooking chamber; a burner configured to generate heat to heat the cooking chamber, the burner including a burner frame through which gas flows and a burner hole formed in the burner frame to discharge the gas; an ignition device configured to ignite the gas discharged through the burner hole and including a heater; and a bracket configured to protect the ignition device. The bracket may include a plurality of bracket holes configured to allow the gas discharged through the burner hole to pass therethrough and to prevent or reduce radiant heat of the heater from being transferred to the burner.

The present application relates to a near-field radiation heat transfer system filled with artificial hyperbolic metamaterials. The system comprises an emitter, a receiver and a filling medium, the filling medium is arranged between the emitter and the receiver; the filling medium is provided with artificial hyperbolic metamaterials, the artificial hyperbolic metamaterials are potassium permeated silicon dioxide nano-porous matrix filling materials; wherein, the system adopts a full-coupling multi-physical field framework integrating near-field radiation, conduction transmission and nonlinear temperature stratification. The present application adopts potassium permeated silicon dioxide nano-porous matrix filling materials as hyperbolic low-loss gap filling medium, and establishes a full-coupling multi-physical field framework integrating near-field radiation, conduction transmission and nonlinear temperature stratification, and realizes near-field radiation dominated heat transfer in a solid-state system and exceeds the conduction heat flow.

The application discloses a molten metal splash protective clothing and a preparation process thereof and belongs to the field of individual protection equipment. The process comprises the following steps: weaving after blending meta-aramid 65-75%, para-aramid 15-20% and flame-retardant viscose fiber 10-15%; adopting a two-dip-two-pad method to dip and pad finishing liquid containing 5-8% nano-alumina sol, 3-5% polytetrafluoroethylene emulsion and 2-3% phosphorus flame retardant; performing super-feeding heat setting at 190-210 DEG C; compounding aluminum-coated film polyimide non-woven fabric through point-shaped hot melt adhesive; and finally sewing into clothes. The process has the advantages of process intensification, low energy consumption, more than 60% reduction of adhesive amount, air permeability greater than or equal to 50 mm / s, less than 1% of defective product rate and the like. The prepared protective clothing has the aluminum liquid impact greater than or equal to 350 g, the iron liquid impact greater than or equal to 200 g, the radiant heat transfer index RHTI24 greater than or equal to 20 s, the breaking strength greater than or equal to 800 N and the thermal stability dimensional change rate less than or equal to 2.5%, and the unity of high-grade protection and process economy is realized.

This invention provides a radiant calcining kiln, belonging to the field of calcining kiln technology. It includes a feeding device for lifting materials into the kiln; a calcining kiln for calcining the materials, comprising a preheating zone for preheating the materials, a calcining zone for calcining the materials, and a cooling zone for cooling the calcined materials; and a waste gas treatment system for treating the waste gas generated during combustion. This invention can calcine small materials with a diameter less than 20mm, solving the problems of easy nodule formation, poor permeability, and low utilization rate and resource waste in the calcination of small particles. During use, nodule formation is prevented, reducing the difficulty of production operations, and the heat from combustion can be fully utilized, achieving energy conservation and emission reduction. Through radiant heat transfer, the materials do not directly contact the flame, resulting in uniform heating, a low rate of undercooked materials, and no open flame inside the kiln, thus producing less ash and resulting in higher purity clinker.

An aerosol-generation device includes a cavity, configured to receive an aerosol-forming substrate; a heater, configured to heat the aerosol-forming substrate received in the cavity; a heat insulation tube, arranged outside the heater, where the heat insulation tube has an inner tube and an outer tube that are arranged along a radial direction of the cavity, and a sealing space is formed between the inner tube and the outer tube; and the sealing space is filled with gas; and a heat insulation layer, arranged between the heater and the heat insulation tube. In this application, the heat insulation layer can reduce radiant heat transfer of the heater, and the heat insulation tube arranged outside the heater can further prevent the heat from being transferred outward, thereby preventing a user from feeling hot due to a high shell temperature of the aerosol-generation device, and improving user experience.

The utility model relates to the field of pile foundation engineering in permafrost regions, and particularly discloses an assembly type anti-freezing pile pulling foundation for overhead transmission lines in permafrost regions, which comprises a strip-shaped base, a regular conical upright post, a heat insulation plate and a bearing platform which are sequentially arranged from bottom to top, the upper part of the regular conical upright post is a hollow circular truncated cone, and the lower part of the regular conical upright post is a hollow cylinder; the top end of the regular-cone-shaped stand column is sequentially connected with a heat insulation plate and a bearing platform through bolts, the pile bottom is connected with a strip-shaped base through a flange, the bearing platform and the strip-shaped base are each of a prefabricated assembly type structure, and the heat insulation plate is an asbestos plate. The pile foundation is a hollow body and is light in weight, the regular-cone-shaped stand columns can fundamentally reduce tangential frost heaving force, so that upward pulling displacement of the pile body is reduced, the heat insulation plates can effectively prevent radiation heat from being transmitted to soil around the pile in warm seasons, the frozen soil upper limit of the soil around the pile is improved, the stability of the soil around the pile is enhanced, meanwhile, all the components can be flexibly disassembled and assembled, and construction is convenient. Construction is fast and convenient, and application and popularization are facilitated.

This invention provides a method for predicting the temperature of a steel slab, which allows for the determination of the overall heat absorption rate without measuring the temperature of the steel slab inside the heating furnace, and enables the prediction of the temperature of the steel slab inside the heating furnace from the initial stages of operation using the determined overall heat absorption rate. [Solution] A method for predicting the temperature of a steel slab in a heating furnace, wherein the total heat absorption rate is determined using the amount of radiant heat transfer from the inner wall of the heating furnace to the steel slab, the amount of radiant heat transfer from the combustion gas to the steel slab, and the amount of convective heat transfer from the combustion gas to the steel slab, and the temperature of the steel slab in the heating furnace is predicted using the total heat absorption rate.

A shuttle kiln according to certain aspects includes at least one flue channel and multiple flue risers in fluid communication with the flue channel, and at least one shuttle defining multiple exhaust shafts arranged above the multiple flue risers, wherein at least one radiation blockers is arranged above outlet ports of the at least one shuttle. Such a configuration blocks line-of-sight radiant heat transfer between (i) heated surfaces above the shuttle within the kiln housing and (ii) outlet ports of the exhaust shafts, thereby enhancing radiant heat retention and reducing temperature variability within a kiln cavity of the shuttle kiln.

The present application relates to the field of automation control technology, specifically to a four-corner tangential reheating steam temperature adjustment method based on 1000MW unit tower furnace, comprising the following steps: obtaining wind speed density calculation momentum sum and tangential circle eccentricity evaluation quantity, generating regulation and control instruction in combination with diameter and furnace length to obtain radiation distance quantity, calculating latent heat absorption reference quantity according to the instruction and determining flow state boundary positioning quantity in combination with sensible heat reduction quantity, extracting resistance parameter to establish control valve end point pressure drop quantity, and converting temperature reduction water flow and flow capacity quantity through enthalpy drop total amount. In the present application, the tangential circle eccentricity is depicted through the momentum system and the radiation heat transfer distance is mapped, the regulation and control reference is established, the flow rate and the sensible heat positioning flow state boundary are associated, the dynamic pressure drop is solved to establish the pressure characteristic, the enthalpy drop offset is calculated to determine the temperature reduction water demand, the combustion heat load distribution and the water injection execution are closely coupled, the uneven heat absorption of the heating surface is corrected, the adjustment period is shortened, the steam temperature is stabilized, and the metal loss is reduced.

The invention provides a substrate processing apparatus and a substrate processing method capable of increasing heat when heating a substrate. The substrate processing apparatus includes: a processing container; a substrate support unit which is provided inside the processing container and supports a substrate; and a heating unit that heats the substrate supported by the substrate support unit. The heating unit includes a heating wire that transmits radiant heat to the surroundings during heating, and a lens member provided at a position adjacent to the heating wire. The lens member is disposed between the substrate supporting portion and the heating wire so that the radiant heat is directed in the direction in which the substrate is located, and / or the lens member is disposed between the processing container and the heating wire so that the radiant heat is directed in the direction orthogonal to the surface of the processing container.

The application belongs to the technical field of new energy, and relates to an amorphous phase change peak regulation system and method based on photon-phonon cooperative excitation. The system comprises an optical processor, a phase change calculation unit and a near-field radiation heat transfer module. The phase change calculation unit comprises a copper substrate, an elastic interface modification layer arranged on the copper substrate, an amorphous phase change material layer arranged on the elastic interface modification layer, and a dielectric film layer covering the outer surface of the amorphous phase change material layer. The optical processor is connected with the dielectric film layer. The amorphous phase change material layer is connected with the near-field radiation heat transfer module. The application solves the problems of slow response speed, poor regulation and control capacity, and long energy conversion path in the prior art, and realizes direct, rapid and efficient regulation and control of power fluctuation of a power grid.