371 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 discloses a high-toughness thermal bridge blocking material and a preparation method thereof, namely a metal fibrofelt reinforced aerogel composite material and a preparation method thereof, and belongs to the technical field of thermal insulation materials. The preparation of the metal fibrofelt reinforced aerogel composite material is realized by adopting the processes of metal fibrofelt modification, fiber prefabricated part forming, sol dipping and aging, supercritical drying, heat treatment and the like. The composite material prepared by the invention has the characteristics of light weight, low thermal conductivity, high temperature resistance, high pressure bearing capacity, high toughness and the like, and can be used as a thermal bridge blocking material in the fields of aerospace, thermal equipment and the like.

The invention relates to a low-thermal-resistance phase change heat conduction material and a preparation method thereof, and belongs to the technical field of thermal interface materials. The phase-change-resistant heat conduction material comprises the following components in percentage by weight: 22 to 30 percent of porous BN-paraffin phase change agent, 8.5 to 10.2 percent of nano aluminum nitride, 3.5 to 4.1 percent of reactive diluent and the balance of room-temperature cured silicone rubber, according to the porous BN-paraffin phase change agent, porous BN serves as a carrier, phase change paraffin is packaged in pores, and compared with the prior art, the porous BN-paraffin phase change agent has the advantages that the pore wall of the packaged BN serves as a thermal bridge, the contact probability between the phase change agents is increased, rapid diffusion of heat in a composite material is promoted, phase change latent heat of the paraffin is fully released and conducted, and the phase change performance of the phase change agent is improved. Not only is the problem of paraffin leakage solved, but also the thermal resistance is obviously reduced.

A thermal bridge for thermally coupling an electrical component and a heat transfer device to dissipate heat from the electrical component to the heat transfer device includes upper and lower bridge assemblies includes upper and lower transfer plates, respectively. The transfer plates have sides configured to interface to thermally transfer heat from the lower bridge assembly to the upper bridge assembly. Upper ends of the upper transfer plates face and thermally couple to the heat transfer device. Lower ends of the lower transfer plates face and thermally couple to the electrical component. Upper ends of the lower transfer plates face the heat transfer device. A spring element positioned between the bridge assemblies bias against the transfer plates with an opening force.

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 invention belongs to the technical field of heat conduction materials, and discloses a high-heat-conductivity liquid metal thermal interface composite material and a preparation method thereof.The composite material comprises, by weight, 60-90 parts of gallium, 10-25 parts of indium, 0-20 parts of tin, 1-3 parts of nickel-coated carbon and 0.01-1 part of silicon carbide; the nickel-coated carbon and the silicon carbide are compounded into the liquid metal gallium indium tin, so that the high-thermal-conductivity liquid metal thermal interface composite material can be obtained; wherein the nickel-coated carbon is added, so that the heat-conducting property of the gallium-indium-tin liquid metal can be remarkably improved, because on one hand, a nickel layer is used as a thermal bridge for connecting a carbon material and the liquid metal, the interface thermal resistance can be reduced, the wettability of nickel and gallium-indium-tin is good, and on the other hand, the viscosity of gallium-indium-tin can be improved to a certain extent; therefore, random flowing of the liquid metal is inhibited; and silicon carbide does not react with gallium indium tin at normal temperature, so that the internal friction resistance of the liquid metal can be increased, and the silicon carbide can be embedded into the interface of the liquid metal and the substrate, thereby improving the affinity of the material.

The utility model discloses an aluminum cellular board curtain wall, and relates to the technical field of curtain wall boards. The aluminum honeycomb panel comprises an aluminum honeycomb panel body, a corrosion-resistant layer is adhered to one side wall of the aluminum honeycomb panel body in a stacked mode, a waterproof layer is adhered to the surface of the corrosion-resistant layer in a stacked mode, and an aluminum single plate is adhered to the other side wall of the aluminum honeycomb panel body in a stacked mode. According to the aluminum honeycomb panel, moisture and corrosive substances in external air are prevented from being in direct contact with the aluminum honeycomb panel through the aluminum veneer and the corrosion-resistant layer of the aluminum honeycomb panel surface layer, the corrosion-resistant layer further plays a role in isolation and protection, the service life of the aluminum honeycomb panel is prolonged, and the aluminum veneer and the waterproof layer form a waterproof isolation layer, so that the service life of the aluminum honeycomb panel is prolonged. The aluminum honeycomb plate is prevented from being in direct contact with moisture, moisture or corrosive substances, the heat bridge effect is restrained through the clamping effect of the aluminum honeycomb plate, the corrosion-resistant layer, the waterproof layer and the aluminum single plate through the U-shaped metal edge sealing strip, the heat insulation performance is improved, and the moisture, the moisture or the corrosive substances can be prevented from being in contact with curtain wall materials through the edges of the aluminum honeycomb plate, the corrosion-resistant layer, the waterproof layer and the aluminum single plate.

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 present invention provides a building exterior wall insulation device with high thermal insulation effect. The building exterior wall insulation device of this embodiment includes an inner insulation layer and an outer insulation layer connected to each other, the inner insulation layer includes a first insulation unit, the outer insulation layer includes a second insulation unit, the second insulation unit covers the space between two adjacent first insulation units, and the space between two adjacent second insulation units is opposite to the first insulation unit. This embodiment adopts a relative arrangement of the first insulation unit and the second insulation unit, which increases the interface thermal resistance between the first insulation unit and the second insulation unit, reduces thermal conductivity, and has a high thermal insulation effect. The first insulation unit and the second insulation unit are staggered, which reduces the heat transfer between the inside and outside of the building exterior wall, effectively reduces the dissipation of indoor heat and the entry of outdoor cold air, reduces the thermal bridge effect between the gaps, and improves the thermal insulation 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.

The utility model provides a door and window heat insulation profile, which belongs to the technical field of door and window profiles, and comprises a profile body, a first cavity is arranged on the profile body, a heat insulation strip component is arranged in the first cavity, the heat insulation strip component comprises a neck bush and two limit strips, the limit strips are positioned in the neck bush, the neck bush is tightly attached to the inner wall of the first cavity, and the limit strips are tightly attached to the inner wall of the first cavity. A first heat insulation strip and a second heat insulation strip which are made of different materials are arranged between the two limiting strips, and the first heat insulation strip and the second heat insulation strip are tightly attached to the inner wall of the neck bush. Heat resistance distribution can be optimized according to the specific heating condition of the sectional material, the overall heat insulation effect is improved, the heat bridge effect can be reduced in a combined mode, heat transfer through the sectional material is reduced, and therefore better heat insulation performance is achieved within the specific temperature range.

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 application discloses a kind of stealth steel bone inorganic slurry integrated forming nanometer soft porcelain ceramic wall mobile house manufacturing process, belong to integrated mobile house manufacturing technical field.The application breaks through the traditional "keel frame outer hanging wallboard" step-by-step assembly mode, realizes (wall) structure, heat preservation, moisture-proof, facing, (intelligent system decoration) integrated forming, material cost is reduced by more than 30%, construction period is shortened by 40%, thermal bridge problem is reduced by about 60%, moisture-proof performance is improved by about 50%, while supporting small-batch customized color drawing appearance, can adapt to multiple scene needs such as travel and tourism homestay, temporary residence, fill the green intelligent building and travel and tourism market new product blank.

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 application discloses a low-temperature liquid conveying pipe dry precooling system, which comprises a plurality of sealed and connected precooling pipeline subsystems; each precooling pipeline subsystem comprises a conveying pipe unit, a refrigerating machine heat conduction unit and a cold box unit; the conveying pipe unit comprises an inner metal pipe and an outer metal pipe, and a plurality of layers of heat insulation materials are arranged in the interlayer space of the inner and outer metal pipes; the refrigerating machine heat conduction unit comprises a refrigerating machine and a flexible heat bridge; the cold box unit comprises a vacuum cold box and a temperature control module; the vacuum cold box is arranged at the middle position of the inner metal pipe, and the interlayer space of the inner and outer metal pipes shares a vacuum environment with the vacuum cold box; the cold head of the refrigerating machine is arranged inside the vacuum cold box and is connected to the surface of the inner metal pipe through the flexible heat bridge to conduct heat; and the temperature control module is used for monitoring the change of sensor parameters in the vacuum cold box and completing power regulation of the refrigerating machine. The application can solve the problems of complex precooling process, unstable two-phase flow and large liquid consumption of the low-temperature liquid conveying pipe.

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 utility model discloses a food refrigerator car double-temperature-zone heat preservation compartment which comprises a first heat preservation box shell, a first polyurethane foam plate is fixedly connected in the first heat preservation box shell, a first glass steel plate is arranged on the outer surface of the first heat preservation box shell, a composite aerogel felt is arranged on the outer surface of the first glass steel plate, and a second polyurethane foam plate is arranged on the outer surface of the composite aerogel felt. A second polyurethane foam plate is arranged in the composite aerogel felt, a second glass steel plate is arranged on the outer surface of the composite aerogel felt, a second heat preservation box shell is arranged on the outer surface of the second glass steel plate, and a third polyurethane foam plate is fixedly connected to the inner surface of the second heat preservation box shell. Through the components, the heat preservation performance can be improved, the waterproof and damp-proof functions are enhanced, the structural strength is improved through the arranged glass reinforced plastic plate, and the heat bridge effect between the two compartment bodies is reduced; and water drops generated due to the temperature difference between the inside and the outside can be guided to flow to the water tank along the plate surface through the arranged flow guide plate.

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.

An appliance includes an outer wrapper, an inner liner, a trim breaker having a wrapper channel that receives a wrapper edge of the outer wrapper and a liner channel that receives a liner edge of the inner liner, and an insulation material disposed within an insulating cavity defined therebetween. A multi-component thermal encapsulation material defines pre-mix, application and sealing states. The pre-mix state is defined by the distinct components of the thermal encapsulation material being separated from one another, the application state defined by the distinct components combined together into an uncured state of the thermal encapsulation material, and the sealing state defined by the thermal encapsulation material disposed within the wrapper and liner channels and surrounding the wrapper and liner edges, respectively, in the sealing state that defines a hermetic seal between the trim breaker and the outer wrapper and the inner liner.

The invention relates to the technical field of liquid storage and transportation, and discloses a heat insulation structure for reducing heat leakage of a horizontal low-temperature liquid storage tank, which comprises end covers respectively arranged at two ends of the liquid storage tank, an inner tank and baffles symmetrically arranged in the inner tank, the baffle is arranged near the end cover, and a gap is formed between the baffle and the inner wall of the end cover; the upper end of the baffle is connected with the top of the inner tank, and a space for liquid circulation exists between the lower end of the baffle and the bottom of the inner tank. According to the invention, the medium environment around the root of the glass fiber reinforced plastic support body can be dynamically changed, and a main medium for exchanging heat with the glass fiber reinforced plastic support body is converted into a gas phase with an extremely low heat conductivity coefficient from a low-temperature liquid with a high heat conductivity coefficient, so that the heat leakage through a'heat bridge 'is greatly reduced.