247 results about "Thermal bridge" patented technology

The invention discloses a bio-based recoverable high-thermal-conductivity dynamic ordered network composite material and a preparation method thereof, and is characterized in that the material takes a bio-based multifunctional epoxy system and a carboxylic acid compound containing disulfide bonds as reaction monomers, and the reaction monomers are reacted under the conditions of high temperature and metal salt catalyzed epoxy-carboxylic acid esterification reaction to obtain the bio-based recoverable high-thermal-conductivity dynamic ordered network composite material. A dynamic ordered network structure simultaneously containing disulfide bonds and beta-hydroxyl ester bonds is constructed, and the dynamic ordered network can be used as a springboard for phonon transmission, serves as an efficient'thermal bridge ', and plays a role similar to an ordered'crystal domain', so that higher heat-conducting property is shown when heat-conducting filler is not introduced, high flexibility and intrinsic heat conduction are realized, and the service life of the material is prolonged. And the material is endowed with reprocessing and recycling characteristics. Due to the synergistic existence of carboxyl, hydroxyl generated by epoxy ring opening and metal coordination in the system, and in combination with electrostatic interaction, Van der Waals force and hydrophobic interaction, the material has the adhesion characteristic suitable for a thermal interface at the same time.

The invention provides an aluminum alloy precision forging forming die multi-area independent temperature control system and method, the system comprises a forming die assembly, a force thermal decoupling support base, a fluid temperature control supply station and a main control unit, the forming die assembly comprises a plurality of heat conduction inserts separated by heat insulation isolation layers; a rigid bearing loop and a dynamic thermal control loop which are parallel to each other are integrated on the force thermal decoupling supporting base, the dynamic thermal control loop drives the high-thermal-conductivity telescopic thermal bridge and the interface flexible dielectric layer to ascend and descend through a displacement actuator, and in a non-forging state, the thermal bridge supports the heat conduction insert and maintains a safety gap with the rigid bearing stand column; in the forging impact stage, the heat conduction insert moves downwards to eliminate the safety gap, the rigid bearing stand column bears the forming load, the main control unit adjusts the output force of the actuator according to temperature feedback, and the contact thermal resistance is adjusted and controlled in real time by changing the interface contact pressure. The problem that a precise temperature control assembly is difficult to bear forging impact is solved, and quick and precise response of multi-area independent heat flow is achieved.

The utility model relates to a metal-plastic combined type heat-bridge-free supporting connecting piece of a suspender. The utility model aims to realize heat-bridge-free support. The organic hard material base is used for being fixed to an indoor top or a wall concrete bone layer through at least three fastening nails distributed in the circumferential direction, a center blind hole for internally fixing a nut is formed in the front face of the organic hard material base, and the nut is used for screwing and fixing a hanging rod penetrating into the center blind hole to conduct vertical or transverse bearing. The organic hard material base is provided with a nail hole allowing a nail rod of the fastening nail to penetrate through, a nail hole pit allowing a nail cap of the fastening nail to penetrate deep and an organic material cover cap sealing the nail hole pit and the nail cap. The nut is a hexagon nut or a nut provided with a peripheral extending part. The utility model has the advantages that the supporting strength can be guaranteed, a heat bridge can be blocked, the increase of cooling and heating energy consumption in a building is avoided, and the installation and use are convenient.

The present application relates to the field of building, specifically to a composite panel-type tie member and a shear performance calculation method; comprising a steel core layer and outer cover layers located on both sides of the steel core layer to clamp and position the steel core layer; the outer cover layers are made of GFRP material, and the sizes of the two outer cover layers correspond; the size of the steel core layer is smaller than that of the outer cover layer, and the steel core layer and the outer cover layer have an equal proportion corresponding relationship; after the centers of the steel core layer and the outer cover layer are aligned, the gap area between the edges of the outer cover layers and the edges of the steel core layer is filled with bonding material. The tie member has high shear strength and stiffness, and effectively reduces the influence of wallboard thermal bridge effect.

The invention discloses a seasonal frost heaving thermal insulation control pavement structure, and belongs to the field of road engineering. The structure comprises an asphalt or concrete surface layer (1), an upper cement stabilized macadam layer (2), an upper sand cushion layer (3), an extruded sheet thermal insulation layer (4), a lower sand cushion layer (5) and a lower cement stabilized macadam layer (6), the extruded sheet thermal insulation layer (4) is a complete thermal insulation layer formed by splicing a plurality of extruded sheet units through mortise and tenon joint structures (7). Through the extruded sheet thermal insulation layer in mortise and tenon connection, heat transfer of the upper layer and the lower layer can be effectively blocked, displacement between the plates is prevented, and local frost heaving caused by a plate joint thermal bridge effect is avoided, so that the overall stability and durability of a pavement structure are remarkably improved, and the prevention and treatment requirements of seasonal frost heaving of pavements in regions with different freezing depths can be met.

The application relates to the technical field of stop valves, and discloses an ultralow-temperature stop valve, which comprises a valve seat and a valve body, the valve seat is arranged on the valve body, a valve rod for opening and closing the valve seat is arranged in the valve body, a packing part is arranged on the valve body, the packing part is used for plugging a gap between the valve body and the valve rod, a heat preservation sleeve is arranged on the valve body, a baffle is arranged on the valve body, the heat preservation sleeve is located on the side, away from the valve seat, of the baffle, and the heat preservation sleeve is located on the outside of the packing part. The heat preservation sleeve is arranged on the valve body, the heat preservation sleeve is located on the side, away from the valve seat, of the baffle, the baffle limits the movement of the heat preservation sleeve, the heat preservation sleeve can stably preserve the temperature of the packing part, the packing part is not prone to thermal bridge effect, and the condition that the packing part can quickly adsorb cold air is reduced.

The application relates to the technical field of spacecraft thermal control, and particularly provides a spacecraft multilayer heat insulation assembly thermal bridge suppression type bolt fixing structure which comprises a fixing assembly, a heat insulation bushing, a first heat insulation gasket, a second heat insulation gasket, a multilayer heat insulation assembly and a structural member; a stud passes through the second heat insulation gasket, the structural member and the multilayer heat insulation assembly in sequence; the outer surface of the stud is covered with the heat insulation bushing; the heat insulation bushing is a gradient functional composite structure; the heat insulation bushing comprises, from inside to outside, a heat insulation damping layer, a heat reflection layer and a structural enhancement radiation resistance layer; the contact surface between the second heat insulation gasket and the structural member is provided with a micro-cone array structure; the contact surface between the first heat insulation gasket and the top of the heat insulation bushing is provided with a micro-cone array structure; and the micro-cone array structure is used for filling assembly gaps and reducing solid heat conduction. The application has the advantages of low heat leakage, strong space adaptability and high thermal resistance stability.

Example embodiments provide a voice coil speaker that may comprise a speaker frame and a diaphragm connected to the speaker frame and configured to be capable of axial movement. A heat conducting coil former may be connected to the diaphragm. A pole piece and a back plate may form an annular gap and conduct magnetic flux from an axially polarized permanent magnet in a complete loop that includes the annular gap. A voice coil may be wound on the heat conducting coil former and residing in the annular gap, the magnetic flux passing through the voice coil in the radial direction, such that the voice coil produces an axial force to cause the diaphragm to produce sound. A thermal bridge may be configured to conduct heat from the heat conducting coil former to the back plate.

The invention discloses a CSP soaking pit furnace wall thermal insulation material which is of a gradient composite structure comprising an instantaneous high temperature resistant inner layer, a thermal insulation middle layer and a radiation heat exchange outer layer, and the instantaneous high temperature resistant inner layer is made of a composite material comprising nano aerogel and high temperature resistant whiskers; the heat insulation middle layer is made of a nano-particle modified ceramic fiber material; and the radiation heat exchange outer layer adopts a ceramic coating with high infrared reflectivity. The overall heat conductivity coefficient is reduced through the synergistic effect of the low heat conductivity of the inner layer, the high-temperature shrinkage resistance of the middle layer and the radiation heat dissipation performance of the outer layer, good instantaneous high temperature resistance and high-temperature stability are considered, and the heat preservation effect is remarkably enhanced; and in combination with various surface connection improvement means, a heat conduction path can be effectively prolonged, a heat bridge effect can be blocked, heat loss is further reduced, heat energy loss and operation energy consumption of the furnace body are remarkably reduced, and rapid repair is facilitated.

The invention discloses a construction method of a composite sandwich thermal insulation building block constructional column, which is characterized by comprising the following steps of: S1, checking and accepting embedded steel bars of the constructional column, and pre-discharging a story number line of brick building blocks according to an elevation control line and the elevations of a windowsill and a window top; s2, typesetting and designing according to the size of the heat bridge part, and popping up a floor axis, a wall body side line and a constructional column side line; s3, the composite sandwich heat preservation building blocks are built to form a wall body; a horse tooth rubbing position at the joint of the constructional column is reserved; s4, supporting a film on the constructional column and pouring; s5, removing the mold and cleaning the site; the characteristic of a three-layer structure of the composite sandwich thermal insulation building block is reasonably utilized, a standard stubble groove body formed by an inner blade and the complete building blocks on the two sides is removed at the constructional column, a standard constructional column is formed through pouring, and the connectivity between the constructional column and walls on the two sides is effectively enhanced; the building block outer side heat preservation layer without the inner blades and the outer blades can also be used as templates to reduce material loss, and the outer surface of the constructional column formed in the mode is flush with a normal building block, so that the continuity of a surface construction layer is not affected.

This application provides a structure and installation method for a thermal bridge-free connection node for building exterior walls, belonging to the technical field of thermal bridge connection structures for building exterior walls. It includes a precast wall, with the outer side of the precast wall being the indoor side and the inner side being the outdoor side, and a thermal inertia matching layer disposed on the inner side of the insulation board. This structure and installation method for a thermal bridge-free connection node for building exterior walls solves the defects of traditional exterior wall joints, such as significant thermal bridging effects at the connectors, thermal stress cracking at the interfaces of different materials due to abrupt changes in thermal conductivity, and the difficulty in balancing mechanical connection and thermal performance, by placing the thermal inertia matching layer between the insulation board and the cement backing board. It achieves the goal of completely blocking heat conduction along the axial direction of the connector while meeting structural load-bearing requirements, and ensuring smooth heat flow transition between structural layers, significantly improving the energy-saving performance and long-term stability of the exterior wall insulation system.

The invention discloses a vacuum heat insulation anchoring system with a breathing micro-channel and a cap broken bridge structure and a construction method, and relates to the technical field of building energy conservation and outer wall heat preservation, in particular to the vacuum heat insulation anchoring system with the breathing micro-channel and the cap broken bridge structure and the construction method. The device comprises a vacuum heat insulation unit, an anchoring assembly and an edge broken bridge heat insulation strip. The vacuum heat insulation unit is a vacuum heat insulation plate, and packaging flange edges extending outwards are arranged on the periphery of the vacuum heat insulation unit. The anchoring assemblies are arranged at the abutted seams between the adjacent vacuum heat insulation units and used for pressing and fixing the packaging flange edges. The edge broken bridge heat insulation strip is arranged on the outer side of the packaging flange edge and the outer side of the anchoring assembly and covers the packaging flange edge and the anchoring assembly. The back face of the vacuum heat insulation unit is of a flat structure, and a micro-gap cavity ranging from 3 mm to 5 mm is formed between the vacuum heat insulation unit and the base layer wall by means of the thickness of the structural adhesive. The anchoring assemblies are arranged at the abutted seams of the vacuum heat insulation units, the outer sides of the anchoring assemblies are covered with the edge broken bridge heat insulation strips, meanwhile, the moisture removal micro-gap cavities are formed through the structural adhesive, it is guaranteed that the vacuum heat insulation plates are reliably fixed, meanwhile, an anchoring heat bridge is effectively blocked, and moisture removal of the wall is achieved; therefore, the overall heat insulation performance and the use reliability of the external wall insulation system are improved.

The utility model discloses a heat preservation integrated system connecting piece. The heat preservation integrated system connecting piece comprises a main connecting rod, a heat insulation ring, an embedded sleeve, a locking nut and a sealing gasket. The surface of the main connecting rod is provided with external threads, the middle of the main connecting rod is sleeved with a heat breaking ring, the two ends of the main connecting rod are sleeved with embedded sleeves, the inner walls of the embedded sleeves and the locking nuts are provided with internal threads matched with the external threads of the main connecting rod, sealing gaskets are arranged between the locking nuts and the embedded sleeves, and the two ends of the main connecting rod are each provided with three dovetail-shaped limiting clamping grooves. The tensile strength is improved through the composite material structure, the heat conductivity coefficient is reduced through the three-layer heat insulation design, the installation efficiency is optimized through the design of the dovetail-shaped limiting clamping grooves and the anti-skid lines, and the durability is enhanced through the combination of the EPDM sealing gasket and the corrosion-resistant material; the problems of thermal bridge effect, insufficient tensile strength, inaccurate installation and positioning, poor durability and the like of a traditional thermal insulation system connecting piece are effectively solved.

The present application relates to the technical field of food-grade pressure vessels, and particularly relates to a vacuum jacket insulation structure of a food-grade pressure vessel and a manufacturing method thereof, which comprises a storage tank, an inner container, a vacuum jacket cavity, a heat insulation support assembly, a valve island assembly, a vacuum maintenance assembly and a low-radiation reflective layer. The inner container is arranged in the storage tank, and the vacuum jacket cavity is formed between the storage tank and the inner container. The heat insulation support assembly is connected to the storage tank and the inner container in a staggered and oblique manner, and is provided with a heat insulation part and a hollow hole, so as to reduce the heat bridge at the support part while maintaining the stable support of the inner container. The valve island assembly is arranged at the top of the storage tank, and forms a neck vacuum extension cavity in communication with the vacuum jacket cavity through an outer neck support cover, so as to reduce the heat bridge at the top interface area. The vacuum maintenance assembly is in communication with the vacuum jacket cavity, and continuously adsorbs water vapor and residual gas through a drying agent area and an adsorption area. Compared with the prior art, the present application can improve the uniformity of heat preservation, the vacuum maintenance capability and the long-term use stability of the pressure vessel.

The invention relates to a high-pressure gas tank comprising a tank shell and a tank interior surrounded by the tank shell for receiving pressurized gas, wherein the tank shell is made of a plastic, wherein an inner side of the tank shell facing the tank interior is provided with an inner lining which delimits the tank interior, wherein the inner lining is made of a thermally conductive lining material, wherein the high-pressure gas tank comprises at least one thermally conductive element penetrating the tank shell and wherein the at least one thermally conductive element is in effective thermal contact with the inner lining to form a thermal bridge. Furthermore, an improved vehicle with a high-pressure gas tank is proposed.

The utility model discloses a computer mainboard with a self-radiating structure, which comprises a composite radiating layer embedded in a PCB (printed circuit board) main body, high-heat elements and other electronic elements distributed on the outer side of the PCB main body in a dispersed manner, a radiating hole array positioned on the periphery of the edge of the PCB main body, and a phase change energy storage unit connected with the composite radiating layer, according to the utility model, the composite heat dissipation layer is embedded in the PCB main body, so that the PCB main body can be in seamless contact with a high-heat element directly to form a thermal bridge structure, the thermal resistance is reduced, the heat generated by the high-heat element can be quickly dispersed and conducted through the composite heat dissipation layer, and the problem that the heat is gathered in the PCB main body due to low heat conduction rate is avoided; meanwhile, the heat dissipation holes are matched with the array, heat can be diffused to the outer side of the mainboard through the composite heat dissipation layer in an accelerated mode, then the phase change energy storage unit rapidly absorbs the heat through the characteristics that the heat can be instantly absorbed and then slowly released, and the temperature of the PCB body is reduced.

The invention relates to the technical field of building energy conservation, in particular to a heat bridge blocking treatment method for bolt connection of a sandwich heat preservation outer wall. In order to solve the problems that in the prior art, a steel bolt penetrates through a sandwich thermal insulation wallboard to form a thermal bridge, so that dewing, heat transfer coefficient deterioration and the like are caused, a pre-buried GFRP sleeve (a glass fiber reinforced polymer sleeve) is adopted to block an axial heat conduction path of the bolt, and the anti-loosening problem is solved in combination with a local micro glue injection technology. The method specifically comprises the steps that a threaded GFRP sleeve is pre-buried in the sandwich heat preservation outer wall, and connecting angle steel is anchored to a main body structural beam; a waterproof-airtight system (building glue and a water stop ring gasket) is arranged; when the wallboard is installed, the heads of the bolts and the openings of the sleeves are pre-coated with microcapsule thread locking agents, and connection is completed through one-time tightening. According to the method, the linear thermal bridge value of the joint is smaller than or equal to 0.01 W / (m.K), the bearing capacity of the bolt is kept unchanged, detachability is achieved, and the thermotechnical and anti-seismic requirements of ultra-low energy consumption buildings are met.

The utility model relates to a connecting and fixing device for wall insulation boards, an insulation system and a building, the connecting and fixing device comprises a plurality of mounting units, a plurality of corner stabilizing units, a plurality of limiting units and a plurality of locking units, and the plurality of mounting units are distributed at the front end of a main body structure and are clamped with the corresponding insulation boards. The insulation board has the advantages that the insulation board can be preliminarily connected with the wall body by using the mounting unit, part of weight is borne, and the load of an adhesive is reduced; and the corner stabilizing units, the limiting units and the locking units are used in cooperation, so that the four corners of the heat preservation plate can be clamped, and concentrated stress is dispersed to a larger area. And meanwhile, the four corners of the insulation board are additionally supported, the limiting units ensure that the positions of the four corners are accurate, and stress concentration caused by position deviation is avoided. All the units cooperate, gaps and looseness of the four corners during temperature change and building settlement are effectively prevented, the heat bridge effect is reduced, and the good heat preservation performance is maintained.

The utility model relates to the field of positioning plates, and discloses a heat-conducting anti-deformation positioning plate, which solves the problems in the background technology, and comprises three support legs which are distributed at equal angles of 120 degrees, a central positioning table is arranged at the intersection of the support legs, and heat-conducting hole channels which axially extend are arranged in the support legs; reinforcing ribs are arranged between the adjacent supporting legs; an annular radiating fin array is arranged on the bottom surface of the central positioning table; the tail end of each supporting leg is provided with a mounting base with a heat conduction boss. The heat conduction sectional area is maximized through the hexagonal hole channels, the spiral flow guide grooves induce airflow vortex, and internal convection heat dissipation is accelerated; the heat bridge connection realizes directional conduction of heat from the mounting base to the central positioning table, and the overall heat conduction efficiency is improved by more than 40% in cooperation with the wavy lines; and material softening or structure failure caused by local high temperature is effectively avoided.

This invention discloses an insulated wall structure, comprising a wall body with an exterior decorative layer on its outer surface. The key feature is that, on the inner side of the wall body, between upper and lower floor slabs, an inner cement mortar layer, an insulation board, an outer cement mortar layer, and an interior decorative layer are sequentially arranged outwards. A fixing frame, extending vertically along the entire inner wall surface, is embedded in the inner cement mortar layer, and the insulation board is fixed to the fixing frame. This invention achieves wall insulation without adding additional thermal bridges, and better prevents hollow areas, detachment, and cracking. The wall structure exhibits higher forming strength and quality, resulting in better insulation performance.

The utility model discloses a steel structure ultra-low energy consumption building canopy which comprises a canopy steel framework and an aluminum plate wrapped outside the canopy steel framework, the canopy steel framework comprises a canopy cantilever beam and canopy edge beams, the canopy cantilever beam is connected with a steel beam of a main body structure through first T-shaped steel, and the canopy edge beams are connected with the canopy cantilever beam through second T-shaped steel. A connecting steel plate used for being connected with a canopy cantilever beam is arranged on the steel beam, one end of the first T-shaped steel is connected with the canopy cantilever beam, the other end of the first T-shaped steel is connected with the connecting steel plate, and the periphery of the connecting position of the first T-shaped steel and the canopy cantilever beam is wrapped with a heat preservation material. A first heat bridge insulation gasket is arranged between the first T-shaped steel and the connecting steel plate. According to the utility model, the thermal bridge insulation gasket I is arranged between the T-shaped steel I and the connecting steel plate, so that a thermal bridge is effectively blocked, and heat transfer is reduced; the periphery of the joint of the canopy cantilever beam and the first T-shaped steel is coated with the heat preservation material, the bridge cutoff effect is achieved, heat transfer is further reduced, and the heat preservation performance of the building is enhanced.

The invention belongs to the technical field of building curtain wall energy conservation, and discloses a screw heat bridge blocking device for an exposed frame curtain wall, which comprises a base, an insulating cover, a fastening sleeve and a length adjusting sleeve. The center of the base is provided with a through hole for a screw to pass through and a mounting groove for accommodating the head of the screw. The insulating cover is in threaded connection with the base and seals the mounting groove to form an insulating cavity. The fastening sleeve is in threaded connection with the other end of the base and used for fixing the base to a curtain wall buckle cover, and the axial through hole of the fastening sleeve allows a screw to penetrate so as to be screwed into a keel. The length adjusting sleeve is connected with the fastening sleeve in an inserted mode, and the end of the length adjusting sleeve extends to the keel heat insulation broken bridge piece so as to adapt to installation depth changes. All the components are made of non-metal materials with low heat conductivity coefficients and jointly form a continuous heat insulation barrier surrounding the screws, a heat bridge path formed through the screws is effectively blocked, and the heat insulation and energy saving performance of a curtain wall system is remarkably improved while the strength of the connecting structure is guaranteed.

The present application relates to a kind of zero-energy consumption building's outer corridor component without thermal bridge structure in hot summer and cold winter area, belong to building energy saving and near zero energy consumption building technical field.For the instability of structure caused by disconnecting with main structure in the existing outer corridor no thermal bridge design, poor seismic resistance, water leakage hidden trouble problem, or the continuous insulation method causes the shortcoming such as high cost, complex structure, construction inconvenience, the present application provides a kind of solution with reasonable structure, simple structure, cost-effective, equipment construction convenient, its main point is: outer corridor board is picked out from main structure and does not break off, top surface is full of first insulation board, bottom surface is partially laid second insulation board, outer wall surface is laid third insulation board;And through thermal simulation software, dynamically calculate the thickness of each insulation board, to extend the insulation structure gradually weakens heat flow flux, reach the effect of eliminating or weakening thermal bridge.The present application is mainly used for the outer corridor of near zero energy consumption building in hot summer and cold winter area, realizes energy saving and consumption reduction, improves building insulation performance and comfort.

A communication system includes a first electrical component having a board connector mounted to a host circuit board and a heat transfer assembly with a thermal bridge mounted to a heat transfer element. The communication system includes a second electrical component received in a component space between the host circuit board and the heat transfer assembly being thermally and electrically coupled to the first electrical component. The second electrical component includes a receptacle connector mounted to a circuit card configured to be electrically connected to a pluggable module. The circuit card is electrically connected to the board connector. A receptacle cage of the second electrical component includes a module channel receiving the receptacle connector and the pluggable module. The receptacle cage includes a thermal opening open at the upper wall and the rear wall that receives the thermal bridge to allow the thermal bridge to interface with the pluggable module in the module channel.

The invention discloses a fabricated building steel structure energy-saving system. The system comprises a vertical load-bearing steel column, a horizontal load-bearing steel beam and a heat bridge blocking system cooperatively arranged on the steel column and the steel beam. The heat bridge blocking system is composed of a node heat bridge blocking unit, a component heat bridge blocking unit, a joint heat bridge blocking unit and a detachable upgrading unit. The node heat bridge blocking unit adopts a cooperative connection structure of a metal end plate, a non-metal heat insulation block and a through bolt to realize disconnection of a metal heat conduction path of a connection node and reliable load bearing; according to the component heat bridge blocking unit, a closed cavity and a heat insulation medium are arranged in non-key stress areas of a steel column and a steel beam, so that a heat conduction path is prolonged; the joint heat bridge blocking unit is provided with a hasp seat with a heat insulation insertion strip and a U-shaped groove with a sealing heat insulation assembly through a steel column and a steel beam. And a detachable upgrading unit. According to the system, a node-component-joint omnibearing heat bridge blocking system is formed, the energy-saving effect is remarkably improved, and the system is adaptive to the whole life cycle of a building.

The invention relates to an insulation element (40) in an air handling unit frame (10) comprising at least one panel (20) and at least one profile (30) section, in order to prevent the formation of a thermal bridge between at least one profile inner sheet (32) and at least one profile outer sheet (31) of the profile (30). The novelty of the invention lies in that the profile inner sheet (32) and the profile outer sheet (31) each comprise at least one cut edge (33) on the sides facing each other so as to form an open end; that the insulation element (40) comprises at least one first inner arm (41) and at least one second inner arm (42) on the side facing the profile inner sheet (32); at least one first outer arm (43) and at least one second outer arm (44) on the side facing the profile outer sheet (31); that each of the mentioned first inner arm (41), second inner arm (42), first outer arm (43), and second outer arm (44) comprises at least one groove (45) for positioning the cut edges (33) of the profile (30); and that it comprises a narrowed waist section (46) between the arms to reduce heat transfer.

The utility model discloses a vacuum heat insulation structure and an automatic forming device, and relates to the technical field of heat insulation materials and processing, the vacuum heat insulation structure comprises a vacuum heat insulation structure body, and the vacuum heat insulation structure body comprises a high-barrier film, a high-performance core material, a catalytic adsorption assembly and a vacuum degree sensor. When the vacuum heat insulation structure and the automatic forming device are used, the catalytic adsorption assembly is arranged in a vacuum heat insulation material and used for absorbing organic gas generated by a high-barrier film in a vacuum environment for a long time, the double characteristics of maintaining the high vacuum degree and restraining a heat bridge are achieved, the high vacuum degree in the heat insulation material is ensured, and the service life of the vacuum heat insulation material is prolonged. The heat insulation performance of the heat insulation material is improved; the vacuum degree sensor is arranged in the vacuum heat insulation material and used for monitoring the vacuum degree index in the heat insulation material, effective control over the quality index of the heat insulation material is achieved, and therefore the safety of temperature-sensitive objects in the transportation process is effectively guaranteed.

The invention discloses a zinc oxide-multi-walled carbon nanotube mixed nanofluid material as well as preparation and application thereof. The zinc oxide-multi-walled carbon nanotube mixed nanofluid material is prepared through S1, material preparation, S2, pretreatment, S3, preliminary dispersion and S4, ultrasonic treatment. The material can be applied to a high-efficiency heat exchanger, a solar heat collection system or an electronic equipment cooling system. According to the invention, a unique point-line synergistic three-dimensional heat-conducting network is constructed by compounding a multi-walled carbon nanotube with a one-dimensional structure and zinc oxide nanoparticles with a zero-dimensional structure; in the composite system, the zinc oxide nano-particles are used as a thermal bridge to effectively connect the adjacent carbon nano-tubes, so that the heat flow transmission path is obviously increased, and the interface thermal resistance is reduced; meanwhile, the production cost and the energy consumption can be reduced, and a technical guarantee is provided for large-scale application of the nanofluid in the industrial fields such as a solar heat collection system.

This invention discloses a green and environmentally friendly method for improving the performance of substation facades, belonging to the field of facade performance optimization technology. The method includes: scanning the substation facade to obtain heat conduction-sensitive areas, constructing a facade thermal field and identifying thermal field distortion; constructing a layered thermal conductivity calculation model to calculate the thermal conductivity of facade materials within and outside the thermal field distortion domain in layers, and filtering out distortion deviation domains; extracting thermal bridge-sensitive domains, and determining whether the distortion deviation domains, heat conduction-sensitive areas, and thermal bridge-sensitive domains are spatially coupled by calculating the global Moran's index; if coupled, extracting the intersection as a spatial coupling domain, and formulating different facade performance optimization strategies for different material types within the spatial coupling domain; this invention can locate thermal problem areas, formulate targeted optimization strategies, improve facade thermal insulation performance, reduce energy consumption and carbon emissions, and achieve green and environmentally friendly goals.