110results about How to "Reduce thermal bridge effect" patented technology

The invention relates to the technical field of insulation building materials and particularly discloses a silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and a preparation method thereof. The silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material is characterized by comprising an upper inorganic fiber layer and a lower inorganic fiber layer. A composite insulation sandwich layer is bonded between the upper inorganic fiber layer and the lower inorganic fiber layer and is formed by mixing modified silica sol emulsion, melamine aerogel powder or water-soluble powder phenolic resin, a dispersant, a water repellent, silicon dioxide nanometer aerogel, hollow-core glass beads, a carbon nano tube, wollastonite powder, mica powder, a fine foamer, a curing agent and a hydrosolvent according to a certain weight ratio. According to the silicon dioxide nanometer aerogel hollow-core glass bead composite fireproof insulation board material and the preparation method thereof, innovative composite technology and fine foaming technology are adopted, high-tech space thermal insulation materials are changed for industrial and civil use, and the fireproof insulation board material is prepared and becomes an important way for technological development of fireproof insulation materials in the future.

The invention provides a prefabricated overhead heat insulation pipe. In order to solve the problems that when an overhead pipe delivers hot air at a long distance, heat loss is high, and the construction cycle is long, according to the scheme, the prefabricated overhead heat insulation pipe comprises a working pipe. The prefabricated overhead heat insulation pipe is characterized in that the working pipe is wrapped in an inorganic heat insulation layer, an organic heat insulation layer and an outer protection pipe in sequence, and a protection layer is arranged between the inorganic heat insulation layer and the working pipe; longitudinal joints and transverse joints of the inorganic heat insulation layer, the organic heat insulation layer and the outer protection pipe are all in lap joint in a step shape in a staggered mode; the protection layer is connected in a pressed mode; the lap joint of the inorganic heat insulation layer and the organic heat insulation layer is provided with gaps. According to the measures, compared with a traditional prefabricated overhead heat insulation pipe, the prefabricated overhead heat insulation pipe is lower in heat loss, shorter in construction cycle and more environmentally friendly.

The invention relates to an insulation board of a concrete exterior wall, in particular to the insulation board of the concrete exterior wall at a heat bridge part, which is used in match with the exterior wall body constructed by energy-saving insulation building blocks. The invention is prepared by the following steps: raw materials are mixed, molded by extrusion to obtain the insulation board molding product which is subjected to steam curing and drying to obtain the insulation board molding product of the concrete exterior wall; the invention is characterized in that: before the invention is molded by extrusion, steel mesh is put into the raw materials followed by being molded by extrusion to be the insulation board molding product; the raw materials comprise the following components according to weight percentage: 235-242 parts of silicate cement, 65-67 parts of expanded perlite, 43-45 parts of ceramsite, 80-83 parts of slag, 4-2 parts of plant ash, 1.5-2 parts of wool felt fiber, 0.5-1.0 parts of cloth fiber, 0.5-1.0 parts of bamboo fiber and 94-96 parts of water. The invention has good insulation property, can effectively reduce the heat bridge effect of the exterior wall constructed by energy-saving insulation building blocks, has high breaking strength and can have the same service life with the exterior wall constructed by insulation blocks.

The invention provides a production method for a cold chain thermal insulation box. After a VIP box of which the top end face is an open face is formed by spicing vips, a box inner mold is placed in the VIP box, and then the VIP box and the box inner mold are placed in a box outer mold; a gap space is formed between the outer wall of the VIP box and the inner wall of the box outer mold, and the box inner mold abuts against the inner wall of the VIP box; then a VIP serves as a VIP cover plate, the VIP cover plate is laid on a cover plate inner mold, and a cover plate outer mold is arranged on the VIP cover plate; a gap space is formed between the VIP cover plate and the cover plate outer mold similarly; EPP or EPS particles are injected into the gap spaces; and high-temperature high-pressure steam is led to the gap spaces, and foaming, adhering and forming of the EPP or EPS particles are completed. The production method is simple in process, the VIP box is formed integrally, machining cost is low, and the yield is high. The invention further provides the cold chain thermal insulation box small in overall weight, and protruding, adhesion failure, deformation and other problems are avoided.

There is provided building structures that are demountable from a first configuration to be reassemblable to the first configuration or another configuration. The building structures include systems and kits for the structure, post anchors, kits for floor structure, method for assembling floor structures, wall and ceiling support systems, electrical junction box supports, and kits for frame assembly.

There is provided building structures that are demountable from a first configuration to be reassemblable to the first configuration or another configuration. The building structures include systems and kits for the structure, post anchors, kits for floor structure, method for assembling floor structures, wall and ceiling support systems, electrical junction box supports, and kits for frame assembly.

The invention discloses a prefabricated sandwich insulation wall based on plate perforated FRP connecting pieces and a manufacturing method thereof. The prefabricated sandwich insulation wall comprises an inner-layer concrete plate, an outer-layer concrete plate, a middle insulation layer and FRP connecting pieces; the inner-layer concrete plate and the outer-layer concrete plate are compounded byfiber knitted nets and ECC concrete; through transverse penetration of the FRP connecting pieces, the fixed connection among the inner-layer concrete plate, the middle insulation layer and the outer-layer concrete plate is realized; and holes are formed in the two side edge positions, in the inner-layer concrete plate and the outer-layer concrete plate, of the FRP connecting pieces at intervals.Through full use of such characteristics as high corrosion resistance and low heat conducting coefficient of the plate perforated FRP connecting pieces, the thermal bridge effect is eliminated, the safety and the durability of the wall are improved, and meanwhile, such problems as weak bonding and anchoring performances of connecting pieces of a traditional insulation wall with a sandwich layer and a concrete interface are solved.

The invention discloses A high-temperature superconducting coil excitation device including the rack, a flux pump and a power mechanism arranged on the rack, and a low-temperature Dewar bottle for placing the flux pump and the high-temperature superconducting coil, A liquid nitrogen is arrange in that low-temperature Dewar bottle, the flux pump includes a support column, A superconduct wafer dispose on that circumferential surface of the support column and a superconducting lead disposed between the support column and the superconducting wafer and connecte with the superconducting wafer, and apermanent magnet mounted on the power mechanism and rotatable around the circumference of the support column, wherein the two ends of the superconducting lead protruding from the superconducting sheet are respectively connected with the two lead ends of the high-temperature superconducting coil, and a gap is arranged between the permanent magnet and the support column. The utility model has the advantages of simple structure, reasonable design, and can effectively solve the problems of expensive DC power supply equipment, high energy consumption, high refrigeration cost and complicated magnetic flux pump device for excitation of high-temperature superconducting coils, and has strong practicability and is convenient to be popularized and used.

The invention relates to a recycled concrete energy-saving thermal-insulating building block and a preparation method thereof. Four rows of through holes are vertically formed in the building block, two through holes are formed in each of the first row and the fourth row, three through holes are formed in each of the second row and the third row, and the end part of one through hole in each of the second row and the third row is not sealed, so that the end ribs of building blocks are not continuous, the continuous heat transfer among the end ribs is blocked, and the cold-hot bridge effect is reduced; a bottom-sealed structure is adopted at the bottom of the building block, so that the air circulation among through holes of upper and lower building blocks of a wall body is prevented, the grouting and cementation of the building block during vertical construction are enhanced, and the construction strength and shearing strength of the building block are enhanced. The energy-saving thermal-insulating building block consists of recycled aggregate, coal cinders, glass beads, an air entraining agent, cement, coal ash, slag, polypropylene fiber, a water reducing agent and water; the glass beads are added into a building block base body, so that the heat resistance of the building block base body is improved, and the heat transfer of temperature difference between inside and outside of the wall body among building block base bodies is reduced. The building block provided by the invention has the characteristics of being high in mechanical strength and excellent in heat insulation, saves energy, utilizes wastes, is simple in manufacturing method, and is suitable for industrial production.

The invention relates to mortar for building burning-free thermal-insulation bricks, which are prepared by the following steps: weighing the raw materials in a mixing ratio, delivering the raw materials to a mixer, and uniformly mixing to obtain finished products, wherein the bricks comprise the following raw material in part by weight: 704 to 796 parts of medium coarse sand, 234 to 324 parts of common portland cement, 35 to 50 parts of electric furnace slag, 33 to 40 parts of pulverized coal, 20 to 35 parts of expanded perlite, 1.4 to 2 parts of straw, 5 to 7 parts of shuck, and 177 to 200 parts of water. The special building mortar for burning-free thermal-insulation bricks, which is produced by the applicant, has high pressure strength, high shearing strength, high water holding performance, high thermal insulation performance and low radioactivity; and the mortar is close to the complete burning-free thermal-insulation bricks in properties such as density, heat conductivity, shrinkage deformation and the like; the mortar has high adaptability and adhesive force with the burning-free thermal-insulation bricks; the cold and heat bridge effect at the joint parts of the bricks is relieved; the cracking and moisture absorption of the wall face are prevented; and thus, the mortar meets the requirements on thermal insulation and heat preservation for building energy conservation.

The invention discloses a method for preparing vacuum insulated panel core materials by utilizing glass fiber aggregation leftover materials. The method for preparing the vacuum insulated panel core materials by utilizing the glass fiber aggregation leftover materials comprises the following steps that the insulated panel core materials are obtained by cutting, dispersing, distributing, heating and pressing forming the glass fiber aggregation leftover materials; the heating temperature is 500-630 DEG C, the pressing pressure is 0.2-1.0 MPa, the density of insulated panel core materials is 260-320 kg/m<3>, the prepared core materials are good in mechanical strength and small in expansion rate. The invention further discloses a vacuum insulated panel prepared by utilizing the insulated panel core materials. According to the vacuum insulated panel, the initial center thermal conductivity coefficient of the vacuum insulated panel is lower than 2.5mW/m.K, the overall effective thermal conductivity coefficient is lower to below 3.5 mW/m.K, the service life is over 15 years, and manufacturing cost is greatly reduced.

The invention discloses an I-shaped hollow building block. A recess is respectively formed on both ends of a hollow building block for construction, thereby changing the building block into an I shape. In the masonry process of walls by using the I-shaped hollow building blocks, a closed cavity having the heat insulating function is enclosed by the recesses of two left-right adjacent building blocks and upper-lower adjacent building blocks, and therefore, cold/heat bridges at both ends of the building blocks are eliminated, the cold/heat transfer of the vertical mortar joint is cut off, and the energy-saving effect of the constructed outer wall is obviously improved.

The invention provides a vacuum insulated panel core material, a preparation method thereof and a vacuum insulated panel. The vacuum insulated panel comprises a core material and a gas barrier bag; and the core material is packed in the gas barrier bag in vacuum to prepare the vacuum insulated panel. The core material consists of three raw materials of nanometer gas-phase silicon dioxide with a mass fraction of 60-95%, reinforced viscous fibers with a mass fraction of 3-35% and radiation light screening agents with a mass fraction of 2-10%. The preparation method of the core material prepares the core material through the steps of uniform mixing of the raw materials, molding through pressing, cutting and wrapping of breathable non-woven cloth materials without transmitting powder; and the core material is dried to load in the gas barrier bag for vacuumizing and sealing to prepare the vacuum insulated panel. The core material is low in solid heat conducting coefficient, low in shrinkage rate, low in density and high in strength; and the corresponding vacuum insulated panel is low in heat conducting coefficient, high in strength and long in service life.

The invention applies for disclosing a concave building insulation masonry block and a masonry method thereof, which is implemented by making a porous masonry block or a hollow masonry block into a concave shape and inserting the masonry blocks mutually into the groove of the opposite masonry block during the process of masonry blocks with the same skin, thus radically eliminating cold and hot bridge effect at the end part of the masonry blocks and remarkably improving the heat insulation effect and stability of wall body.

The invention discloses lightweight plastering mortar, which is characterized in that the mortar is formed by mixing the following components in part by weight: 20 to 25 parts of common silicate cement, 2 to 4 parts of slaked lime, 5 to 10 parts of light aggregate, 20 to 30 parts of electromagnetic wave absorption master batch, 30 to 50 parts of heavy aggregate and 1.0 part of composite auxiliaryagent, wherein the light aggregate is an inorganic vitrified hollow micropore material with fineness of less than 100 meshes, and the heavy aggregate is common river sand. The construction method comprises the following steps of: diluting the lightweight plastering mortar by adding water in an amount which is 30 to 50 percent of the weight of the mortar, mechanically or manually stirring the mortar till the mortar is mixed uniformly, and mechanically coating the mortar or manually constructing the mortar when the mortar reaches the viscosity suitable for mechanical coating or manual construction. The lightweight plastering mortar with function of shielding and absorbing electromagnetic wave can shield and absorb the outdoor electromagnetic wave, absorb the indoor electromagnetic wave and reduce the diffuse reflection of the indoor electromagnetic wave, is light and energy-saving, reduces the consumption of unit area material and has low unit area manufacturing cost; and when used for a lightweight wall, the lightweight plastering mortar can prevent hollowing, cracking and dropping, is favorable for mechanized construction, and has simple process.

The invention provides a partially cladding steel-concrete composite member and a composite structure building thereof. The composite member includes a first side steel plate, a second side steel plate, studs, a repair welding steel plate, stiffening steel plates, a reinforcement framework and concrete; the two stiffening steel plates, the first side steel plate and the second side steel plate enclose a prefabricated web cavity in a prefabricated area; concrete is poured into the prefabricated web cavity; and the reinforcement framework is embedded in the concrete. According to the partially cladding steel-concrete composite member and the composite structure building thereof, the advantages of convenient connection and good anti-seismic performance of a steel structure are developed, andmeanwhile the advantages of high rigidity, good anti-corrosion and fire-proof performance and low cost of a concrete structure are integrated; and by using the combined action of steel-concrete, the defects of poor anti-corrosion and fire-proof performance, low rigidity and high cost of a steel member are overcome, and many advantages of the standardized production, assembly construction, long-term durability, economic applicability and the like of the member are achieved, the competitive advantage of the steel structure is greatly enhanced, and the application prospect in prefabricated buildings is broad.

The invention provides a decorative heat preserving plate and a refrigerating device using the decorative heat preserving plate. The decorative heat preserving plate comprises a VIP plate, cellulose plates which are connected to two or one side surface of the VIP plate, and sealing belts or sealing strips arranged about the VIP plate, wherein the sealing belts or the sealing strips are in sealing connection with the inner side surfaces of the cellulose plates; a decorative layer is arranged on the outer side surface of each cellulose plate; a pattern can be conveniently arranged in advance, or color can be coated in advance or various decoration can be performed in advance through the decorative layer, so as to provide a customer a customized personalized refrigerator which can be integrated into the furniture. According to the decorative heat preserving plate, the cellulose plates integrates the outstanding physical performances of wood plastics, and is outstanding in environmental protection, quality in appearance and outstanding in processing performance; the VIP plate is used in some refrigerators at present, thus the decorative heat preserving plate is proposed to be used as the material of the existing white or stainless steel refrigerator housing; decorative layers with any pattern can be used as the surfaces of the cellulose plates, and therefore, customized personalized refrigerator which can be integrated into the furniture is provided to the customer.