872 results about "Radiant heat" patented technology

The invention discloses a ternary internet-of-things battery management system, particularly relates to the technical field of lithium battery management, realizes lithium battery thermal safety closed-loop management through multi-sensor fusion, and comprises the following steps: deploying a digital sensor array to obtain time-space associated data; constructing a spatio-temporal feature vector including fusion of a local temperature gradient, a neighborhood temperature gradient and a stress coupling ratio; a density clustering algorithm is adopted to dynamically divide spontaneous heating, radiant heat and stress coupling clusters, and cluster boundaries are updated in real time; calculating a dual thermal coupling coefficient based on a clustering result, and eliminating the interference of temperature reading through a dual temperature compensation formula; a three-level alarm mechanism of a radiant heat proportion, a stress coupling degree and a compensation error is established, a side gateway is linked to realize parameter adaptive optimization, and the thermal runaway early warning precision and the structural failure detection rate are improved; strain monitoring resource optimization is realized through physically-driven key point screening and dynamic graph neural network prediction.

The invention provides a cross-seasonal heat storage coupling solar ground source heat pump combined heating system. The cross-seasonal heat storage coupling solar ground source heat pump combined heating system mainly comprises a solar heat collector, a valve, a heat storage water tank, a heating tail end, a buried phase change heat storage water tank, a buried pipe and a heat pump. Solar radiation heat in non-heating seasons is collected and stored through cross-seasonal heat storage, and the stored heat is extracted in the heating period in winter and is used for heating a building together with a solar ground source heat pump combined heating system. The system has the beneficial effects that the system efficiency is improved, and the use of thermal insulation materials is reduced, so that the cost is reduced; the buried pipe absorbs and inhibits heat diffusion of the heat storage water tank, heat balance of a soil temperature field around the buried phase change heat storage water tank is guaranteed, and efficient operation of a heat pump unit is maintained. The invention has six control methods: solar energy-soil heat storage, solar energy direct heating, solar energy coupling buried phase change heat storage water tank heating, buried phase change heat storage water tank direct heating, solar energy ground source heat pump combined heating and ground source heat pump independent heating.

Apparatus, system and method for simultaneously drying a coating on a substrate using at least two different drying phenomena, for example, inductive heating and convective heating, or inductive heating and a combination of convective heating and infrared heating. A coating on a substrate is dried by generating heat in the substrate while simultaneously applying convective heat and / or radiant heat to the coating. Simultaneous drying refers to drying of the same region of a substrate at the same time, and in a particular embodiment, subjecting the same region of a substrate to inductive heating and convection at the same time. Preferably the substrate is at least partially conductive.

Systems and methods for deployable and reusable autonomous vehicle systems and networks are provided. The autonomous vehicles include solar power satellite sandwich modules for collecting solar radiation and / or radiant heat and converting it to useable energy to power on-board systems, for storage, or for transmission as electromagnetic radiation in wireless power transfer. The autonomous vehicles disclosed herein may be configured as nodes in a fixed or mobile deployable network for wireless power distribution and / or data transmission across multiple domains (water / land-to-air-to-space). Fleets of autonomous vehicles may be configured for various applications such as micro- or macro-wireless power grids, beam riding highways for orbital raising, point-to-point-transport and in-flight charging, on Earth and in Space.

The utility model discloses a modified aluminum foil composite fabric which comprises an aluminum-plated layer, an aluminum-plated layer, an aluminum-plated layer and an aluminum-plated layer, a first thin film; an aluminum foil layer; and a second film. According to the modified aluminum foil composite fabric, the sewable performance of the fabric is improved, and meanwhile the modified aluminum foil composite fabric has good attaching performance, radiant heat resistance and fire resistance.

The invention relates to the technical field of oil-immersed power transformers, in particular to an oil-immersed power transformer which comprises an oil-immersed power transformer body, a transformer oil conservator is fixedly mounted on the oil-immersed power transformer body, and a fixing frame is fixedly connected to the transformer oil conservator. The sunshade curtains are fixedly connected to the two sides of one end of the fixing frame, the transmission mechanism is fixedly connected to the fixing frame, the curtain pulling frame is arranged on the fixing frame in a sliding fit mode, the oil conservator cleaning mechanism is arranged at the bottom end of the middle of the curtain pulling frame in a sliding fit mode, and the air guide mechanisms are fixedly connected to the fixing frame. The curtain pulling frame is driven by the transmission mechanism to move, so that the sunshade curtain can be unfolded to block above the transformer oil conservator, and sunshade protection is performed on the transformer oil conservator. Direct irradiation of the sun to the oil conservator can be effectively shielded, sunlight radiation heat transfer is reduced, the temperature of the oil conservator is prevented from being too high, and then the temperature of oil in the transformer is effectively reduced.

A clamping system has a workpiece clamp having a platen to support a workpiece and heating elements for heating the platen to a platen temperature. A cooling plate has cooling features to cool to the cooling plate. A vacuum chamber defines a chamber volume between the platen and the cooling plate. One or more radiation shields within the chamber volume can limit a radiative heat transfer between the platen and the cooling plate. A vacuum source and a gas source are selectively fluidly coupled to the chamber volume. A controller controls the platen temperature in both a high and a low temperature regime by controlling a pressure within the vacuum chamber through the vacuum source and gas source to control a heat transfer between the platen and the cooling plate.

A vehicle includes a system configured to supply air to a cabin of a vehicle at a target discharge temperature. One or more solar sensors configured to sense a solar radiation on the cabin and one or more temperature sensors configured to sense air within the cabin. A controller is configured to receive a user set temperature, obtain a solar heat load from one or more outputs of the one or more solar sensors, and obtain a feedback temperature from one or more outputs of the one or more temperature sensors. The controller is further configured to determine a radiation temperature corresponding to radiative heat transfer into the cabin, the radiation temperature being a function of the feedback temperature and the solar heat load. The controller may then set the target discharge temperature according to the user set temperature, the feedback temperature, and the radiation temperature.

The invention relates to the technical field of industrial process control, and discloses a vacuum induction heating process closed-loop control system applying an industrial mechanism model, which comprises the following steps: acquiring the input active power of an induction coil through a power monitoring unit, and measuring the total external radiation heat flux of the outer wall of a vacuum chamber by a heat flow sensing unit; the embedded decision-making module calculates the thermal-electric response ratio and the time derivative thereof in real time, judges the phase change critical state of the material based on the derivative change and generates a regulation and control instruction, through dynamic capture of the thermal-electric energy balance relation, recognition of the phase change critical point of the material is achieved, and by combining working condition pre-judgment of the vibration spectrum entropy and current ripple characteristic arbitration, the phase change critical state of the material is judged. An anti-interference multi-verification mechanism is constructed, and the robustness of the control system under the preset working condition is improved.

A manufacturing plant water-cooling air conditioner energy-saving control method based on load prediction comprises the steps that a heat load mechanism model of a water-cooling air conditioner system is constructed, and the heat load mechanism model comprises a wall heat transfer transient heat conduction model, a solar radiation heat model, a device heat dissipation heat model and a fresh air latent heat model; and establishing a thermal load maximum flow graph model. And establishing a refrigeration mechanism model of the water-cooling air conditioning system, wherein the refrigeration mechanism model comprises a water chilling unit model, a chilled water pipeline heat loss model, a cooling tower model, an air handling unit model and an air duct heat loss model. And establishing a refrigeration maximum flow graph model. And training the thermal load maximum flow graph model and the refrigeration maximum flow graph model through an attention mechanism to obtain a thermal load graph feature matrix and a refrigeration graph feature matrix. And according to the heat load diagram characteristic matrix and the refrigeration diagram characteristic matrix, current operation data of the water-cooling air conditioning system are predicted, and an energy-saving control strategy of the water-cooling air conditioning system is output.

The invention discloses a surrounding furnace tea cooking device which can utilize a first heating body to radiate heat outwards to cook tea or cook a hot pot or bake food and the like, and can also utilize a hot air assembly to heat and utilize an atomization humidification assembly to humidify and reduce dryness. The air blower can accelerate flowing of air in the water tank, the pressure intensity in the water tank is increased, mist is blown out in the circumferential direction, the temperature of air on the circumferential side is increased, mist outlet is even, the coverage range is large, all users sitting on the periphery of the surrounding furnace table can be covered, and meanwhile flowing of air in the heat dissipation cavity can be accelerated through the air blower, and heat dissipation is conducted on the heating furnace assembly. No extra heat dissipation structure is needed, and the practicability is improved.

The invention discloses a heat treatment process of a gear, which relates to the technical field of automobile gear heat treatment, and comprises the following steps: S1, blanking, S2, forging, S3, normalizing: preheating the gear in a preheating furnace by adopting a heating mode of combining infrared radiation and hot air circulation, S4, rough machining, S5, carburizing and quenching: carburizing and quenching, s6, induction heat quenching: performing induction heat quenching on an induction coil; S7, nitriding treatment; S8, low-temperature tempering; S9, finish machining; normalizing is combined with infrared radiation, hot air circulation preheating and induction heating, the effects of reducing energy consumption and machining cost and improving production efficiency are achieved, the forging force is reduced through isothermal forging, the energy consumption of equipment is greatly reduced, pulse type vacuum carburizing, high-pressure gas quenching and induction heat quenching are adopted to introduce a self-adaptive induction heating technology, and the energy consumption of equipment is greatly reduced. And a plasma nitriding technology and a composite nitriding technology are adopted, so that the surface hardness, wear resistance and fatigue strength are improved.

The invention provides a radiation refrigeration plate combining a sky radiation refrigeration material and a plate heat exchanger, and relates to the technical field of refrigeration, the radiation refrigeration plate comprises a sky radiation refrigeration material layer, a plate heat exchanger assembly, a fan cover layer and a heat insulation material layer, the sky radiation refrigeration material layer has high reflectivity in a solar spectrum wave band and has high emissivity in an atmospheric window wave band, and the plate heat exchanger assembly has high reflectivity in a heat insulation material layer; and heat can be efficiently radiated to the outer space. The plate heat exchanger assembly comprises an enhanced heat exchange tube and a nanofluid, and the nanofluid is filled in the enhanced heat exchange tube and used for heat transfer and transport capacity and enhancing the heat exchange effect. And the fan cover covers the sky radiation refrigeration material. The heat insulation material layer is laid on the portion, except the top face, of the radiation refrigeration plate so as to reduce heat loss of the system to the surrounding environment, and the refrigeration effect is guaranteed. By means of the structure, working modes in the daytime and at night are achieved, the heat transfer efficiency of the system is greatly improved, energy consumption is reduced, and the efficient radiation refrigeration effect of all-weather continuous operation at the temperature lower than the environment temperature is achieved.

The invention discloses a building energy consumption management and control method, belongs to the technical field of building energy-saving control, and solves the problems of response lag and energy waste caused by independent operation of a lighting system and an HVAC system. According to the technical scheme, a building parameter database is pre-stored; environment data and equipment power consumption are collected in real time; calculating a solar radiation thermal gain coefficient and a thermal load influence quantity of illumination on the HVAC; when the dynamic coupling factor exceeds a first threshold value or the variation of the illumination intensity exceeds a second threshold value within a preset time, triggering collaborative optimization; a lighting target power consumption value (the compensated lighting power consumption is not lower than a preset proportion of the basic lighting demand value) is synchronously generated after response, and the HVAC set temperature is corrected based on the thermal gain coefficient; and finally a control instruction is issued. The method is mainly used for real-time energy consumption collaborative optimization of large-scale public buildings.

The invention discloses a boiler energy efficiency prediction method and system based on sampling flue gas component analysis. The method comprises the following steps: acquiring heat flux density data of a plurality of radial positions, and inverting a temperature distribution profile through a radiation heat flux prediction model; constructing a multi-component concentration layering graph based on the diffusion equation and the component transport equation; constructing a sampling path optimization model by using temperature gradient and concentration fluctuation intensity information, driving a dynamic telescopic sampling probe to arrange a sampling position, and collecting a flue gas sample; the analysis model determines original concentration data, thermal-mass offset correction is executed in combination with temperature distribution, and a concentration correction function is constructed to obtain a corrected concentration value; and fusing boiler operation condition data, and inputting into the energy efficiency prediction model to output a heat efficiency index. According to the method, temperature field inversion driven by heat flux density is constructed, a multi-component concentration layering graph is generated in combination with a diffusion and transport model, and the spatial representativeness of flue gas sampling, the physical authenticity of component data and the accuracy of energy efficiency prediction are remarkably improved.

The present invention discloses a gas infrared radiation and hot air dual-mode drying furnace for drying printing inks, which comprises a furnace body housing. Inside the furnace body housing, there are a heating chamber and two machine position chambers. The two machine position chambers are symmetrically distributed at the top and bottom of the heating chamber. An inlet and an outlet penetrating through the furnace body housing are respectively arranged on both sides of the middle of the heating chamber. The present invention heats printing paper through two modes of gas infrared radiation and hot air. Due to the physical properties that infrared rays can penetrate and objects can actively absorb the heat of infrared rays, the ink and the interior of the paper can be quickly heated. In the later stage, the high-temperature flue gas waste gas generated by the front-end gas infrared radiation burner is used, and is guided to the air knife for drying through the hot air circulation mode by a blower and a forced air blower. The gas consumption of the burner is lower, and the heating speed is faster, further reducing the gas energy consumption. Under the condition of the same gas consumption, the speed of the printing press is significantly increased, meeting the requirement of lower gas energy consumption of existing conventional gas burners.

The invention discloses a reusable light heat-proof and heat-insulating material and application thereof, and the heat-proof and heat-insulating material is designed according to the anti-radiation / heat-proof / heat-insulating gradient thought for a thermal environment profile of a reusable aircraft. The surface of the material is a ceramic-based heat-proof coating with high emissivity, so that radiation heat flux permeation on the surface of the material is reduced; the interior of the material is a silicon-based heat-proof material, so that the material has a non-ablation / low-ablation effect; the innermost layer of the material is a light thermal insulation material to reduce the structural temperature of the aircraft. According to the thermal protection material spraying integrated forming method, the binding force between the material and the surface of the metal matrix is high, the interface is stable, the process implementation performance is good, the material has the capacity of being repeatedly used for a certain number of times, and the thermal protection and insulation requirements of repeatedly used aircrafts are met.

The invention relates to the technical field of jet flow flame disaster-causing parameter prediction, and discloses a jet flow diffusion flame size and radiation characteristic prediction method and system based on a machine learning method. The method comprises the following steps: constructing a flame size empirical model based on experimental data characteristics; constructing a machine learning model to predict flame height, width and lifting height, and combining the empirical model as a loss function with the empirical model; mass flow is determined according to the gas parameters, and a flame dwell time and radiation fraction calculation model is established in combination with a flame width prediction model; and establishing a flame total radiation power calculation model and a radiation source weighted distribution model, and solving the radiation heat flux by combining a flame height and lifting height prediction model. The prediction method provided by the invention can be used for predicting the sizes and radiation characteristics of jet diffusion flames with different scales under various working conditions, and has the characteristics of high prediction efficiency, high prediction precision, wide application range and the like.

The invention discloses a method for calculating the temperature of a rarefied flow field through convective heat flow and the surface temperature of a Gordon meter, and the method is used for measuring the incoming flow temperature of a rarefied fluid wind tunnel, and comprises the steps: installing the Gordon meter and a radiation heat flow meter on a moving motor at a certain interval, and controlling a measurement point through the moving motor, the measuring point is an area covered by the incoming flow direction; after a measuring point is selected, under the same working condition, a moving motor sequentially measures the total heat flow Q (average value) and the pure radiation heat flow qr of the measuring point, the heat flow average value Qc = Q-qr of convective heat transfer is obtained, and an infrared pyrometer is used for measuring the center temperature Tr = 0 of a Gordon meter; and calculating the incoming flow temperature Tf and the convective heat transfer coefficient h of the current measurement point according to the convective heat flow Qc and the constantan foil center temperature Tr = 0 of the Gordon meter. According to the invention, a simple structure is used for replacing a complicated measurement system of a conventional rarefied wind tunnel temperature measurement method, and the problem that in a highly rarefied wind tunnel, the signal of a spectrum temperature measurement method is weak, and the temperature measured by a thermocouple is difficult to reflect the actual temperature of a flow field is solved.

The invention provides a burner and a cooking utensil, and the burner comprises a main body which comprises a gas containing cavity used for containing combustible gas; an opening of the gas containing cavity faces the combustion net assembly so that the combustible gas can be combusted on the surface of the combustion net assembly, and the combustion net assembly is arranged towards the outside so as to radiate heat energy to the outside; and the backfire blocking net assembly is located on the side, facing the main body, of the combustion net assembly, and the backfire blocking net assembly is used for preventing flames on the combustion net assembly from entering the fuel gas containing cavity.

The invention discloses a high-precision combustible gas detection system, and relates to the technical field of safety monitoring and environmental protection, and the main scheme is as follows: collecting multiple data of combustible gas; respectively calculating a diffusion rate, a combustion heat index and heat conductivity, and further calculating a gas concentration value; comparing a preset threshold value and judging whether the combustible gas concentration is in a normal range or not; if the combustible gas concentration is in a normal range, respectively calculating an explosion lower limit value and an explosion upper limit value to obtain a combustion speed; the flame propagation speed is calculated, and the combustion heat release rate is further obtained; calculating radiant heat flux based on the combustion heat release rate, comparing with a preset threshold value, and judging whether the radiant heat flux is in a safe state or not; according to the method, all-around monitoring and early warning can be carried out on various dangerous conditions related to the combustible gas, and the safety guarantee of the combustible gas use and existence environment is greatly improved.

The utility model discloses a squat silo roof structure and squat silo, squat silo roof structure comprises an upper ring beam, a lower ring beam, a lower cover plate and an upper cover plate, the upper ring beam is provided with a grain inlet, the upper cover plate is connected with the lower cover plate through a connecting unit, the connecting unit comprises a connecting beam, and the connecting beam is connected with the lower cover plate. The connecting beams divide the space between the upper cover plate and the lower cover plate into a plurality of independent ventilation channels, the lower part of each ventilation channel is provided with a side air inlet, and the top of each ventilation channel is provided with an air outlet; the lower cover plate is a reinforced concrete plate, the upper cover plate is a waterproof insulation plate, and a cornice is arranged on the lower portion of the upper cover plate. The granary top is of a double-layer structure, the upper cover plate is a heat preservation plate, radiation heat transfer heat resistance is increased, solar radiation heat is reduced, heat in the ventilation channel can be taken away through wind pressure and hot pressure, the heat insulation capacity of the granary top is improved, and the influence of the outdoor environment on grains in the granary is reduced. The upper cover plate and the cornice are combined, so that rainwater falls down from the cornice after passing through the upper cover plate, the lower cover plate is prevented from being in contact with the rainwater as much as possible, and the waterproof performance of the silo top is improved.

The utility model discloses a battery device and an electric device. The battery device comprises a plurality of single batteries, a composite heat insulation pad is arranged between every two adjacent single batteries, each composite heat insulation pad comprises at least one first heat insulation layer and at least one second heat insulation layer, and the first heat insulation layers and the second heat insulation layers are alternately stacked. The first heat insulation layer is a ceramic fiber heat insulation layer or an aerogel heat insulation layer, and the emissivity of the second heat insulation layer is smaller than or equal to 0.3. The first heat insulation layer can play a better role in insulating heat conduction and heat convection; in the heat transfer process, besides heat conduction and heat convection, the form further comprises heat radiation, the higher the temperature is, the larger the radiant heat proportion is, the emissivity of the second heat insulation layer is low, most of the radiant heat can be isolated, the second heat insulation layer and the first heat insulation layer are structurally compounded, the total heat of heat transfer between the battery monomers can be reduced, and the heat transfer efficiency is improved. Therefore, the risk of thermal runaway of the battery device is reduced.

To improve heat quantity acquired from a sunlight heat collection panel.SOLUTION: A sunlight heat collecting system 1 includes: a sunlight heat collection panel 2 that has a non-heat insulation part 2c causing convection heat transfer with surrounding air and transfers radiation heat from the sunlight and convection heat from the surrounding air to a heating medium M; a heating medium circulation line 4 for sending the heating medium M from a heating medium tank 3 that stores the heating medium M to the sunlight heat collection panel 2 and sending the heating medium M from the sunlight heat collection panel 2 to the heating medium tank 3; a heating medium flowing control mechanism 5 that performs at least either of switching between permission and prohibition of flowing of the heating medium M along the heating medium circulation line 4 or regulation of a flow rate of the heating medium M; and a control device 9. The control device 9 measures radiation heat input quantity Q1 to the sunlight heat collection panel 2, measures convection heat transfer quantity Q2 between the sunlight heat collection panel 2 and the surrounding air, and controls the heating medium flowing control mechanism 5 on the basis of the radiation heat input quantity Q1 and the convection heat transfer quantity Q2.SELECTED DRAWING: Figure 1

In a vacuum valve, as a heat dissipation structure thereof, a heat dissipation layer is provided to a part of the surface of each of a fixed conductor and a movable conductor which are a heat generation part, and a radiation heat absorption layer is provided to an insulation cylinder so as to be opposed to the heat dissipation layer. The heat dissipation layer and the radiation heat absorption layer are each formed from a ceramic having a high emissivity. Heat generated at the fixed conductor and the movable conductor is radiated by the heat dissipation layer, to be absorbed by the radiation heat absorption layer, and then radiated to the outside of the vacuum valve from the radiation heat absorption layer and a ceramic layer.

The invention discloses an experimental platform for testing the combustion behavior of a photovoltaic module. The experimental platform mainly comprises a photovoltaic fire simulation system, a smoke collection system, a spraying system, an ignition module and a monitoring system. The photovoltaic fire simulation system mainly comprises a fixing assembly, a building material, an adjustable support, an electric telescopic module and a photovoltaic sample and is used for accurately simulating a building photovoltaic system scene. The smoke collection system is used for increasing a smoke circulation path and filtering smoke; the spraying system is used for performing water spraying filtration on the smoke dust and purifying the filtered sewage; the ignition module is used for simulating ignition sources with different widths and fire source powers and igniting the photovoltaic sample; the monitoring system is used for monitoring the temperature distribution condition, the internal flow field distribution and the mass loss of the photovoltaic sample, the total mass of the filtered smoke and the temperature signal and the radiation heat flow distribution condition of the building material in real time, so that the combustion and spreading conditions of different types of building photovoltaic fire hazards are determined; and thoughts and references are provided for building photovoltaic fire prevention design.

The invention provides a self-adaptive regulation and control heat pipe phase change TLambert wall and a control method thereof. Wherein the phase-change TLambert wall is provided with an enclosure component, and a plurality of gravity assisted heat pipes are inserted into the enclosure component. And the rotary supporting devices are arranged at the top and the bottom of the enclosure component, and the inclination angle of the enclosure component is adjusted through the rotary supporting devices, so that the working medium backflow efficiency of the gravity assisted heat pipe is changed. By means of the method, solar radiation heat can be efficiently absorbed in the daytime and rapidly transmitted to the phase change heat storage layer through the heat pipe, heat energy storage is achieved, and indoor rapid temperature rise is achieved. The data acquisition unit, the DRL control unit and the execution unit are arranged in the self-adaptive regulation heat pipe phase-change TLambert wall and cooperate with one another, fine regulation of the heat flow management capacity of the low-energy-consumption heat pipe phase-change TLambert wall is achieved, and therefore it is ensured that the system can accurately meet the actual requirements of a building all the time; and the overall energy efficiency and the indoor thermal comfort are improved.

The invention provides a self-adaptive temperature-control energy-saving door and window regulation and control method and system. Wherein the dynamic sunshade parameters are generated by analyzing the geometrical characteristics of east and west facades of a building and combining the solar azimuth trajectory and the ultraviolet energy data. And establishing a photothermal conversion gradient field based on the parameters, and triggering a bimodal mechanism comprising photosensitive medium molecular orientation adjustment and shielding unit space redistribution. Two modes are dynamically coupled according to heat flow distribution characteristics, transparency self-adaptive adjustment is preferentially enhanced when the sun direction suddenly changes, and stepped shielding compensation is overlapped in a heat flow suddenly changing area. By arranging trigger time sequences of two modes, quick response and step adjustment form a complementary action chain in the space-time dimension, and dynamic balance of lighting and heat insulation is achieved. According to the technical scheme, by achieving intelligent dynamic adjustment of the transparency of the building door and window lighting surface, solar radiant heat is effectively blocked while natural lighting is maintained, and the dual effects of saving energy, reducing consumption and improving thermal comfort are achieved.

The invention relates to a polyimide-based composite heat-insulating film laminated material structure and a preparation method thereof, the polyimide-based composite heat-insulating film laminated material structure comprises a polyimide heat-insulating base film and a polyimide heat-insulating fiber film which are cross-linked and bonded, and a metal reflecting layer is deposited on one side, back to the polyimide heat-insulating fiber film, of the polyimide heat-insulating base film. Although the polyimide heat insulation fiber membrane has a good heat insulation effect, the polyimide heat insulation fiber membrane is poor in mechanical property and has a large number of pores, and the polyimide heat insulation base membrane is designed in the laminated structure and serves as a mechanical supporting layer and an airtight layer of the laminated structure; the problems of poor mechanical property and poor heat convection protection of a polyimide heat insulation fiber membrane can be effectively solved, the polyimide heat insulation fiber membrane with a rich pore structure is designed in a laminated structure, the heat conductivity of the laminated material of the composite film can be greatly reduced, and in addition, by designing a metal reflecting layer in the laminated structure, the heat conductivity of the laminated material of the composite film can be greatly improved. And a good radiation heat protection effect can be achieved.

The invention discloses a wire temperature distribution calculation method based on the daily heat radiation quantity of a power transmission line, and the method comprises the steps: 1, building a heat exchange balance formula according to the heat effect and heat loss of the surface of a wire; step 2, calculating radiant heat of a microtopography area line; step 3, constructing a micro-topography power transmission line temperature distribution calculation model based on the thermal radiation prediction function; step 4, taking airflow disturbance as a heat source into the temperature distribution calculation model, and obtaining temperature distribution of the icing line under different terrains; according to the method, the airflow disturbance and the solar radiation amount are taken as heat sources to be considered into the temperature distribution model, the temperature distribution rule of the iced line under different terrains is obtained, important theoretical support is provided for the ice-resistant design of the power transmission line, and reasonable site selection and wind-resistant and ice-resistant design of the power transmission line are guided.