17results about How to "Improve insulation efficiency" patented technology

This invention discloses a high-performance vitrified microsphere composite polystyrene particle insulation board and its preparation method, comprising the following steps: premixing hydrophobic vitrified microspheres and expandable polystyrene particles coated with expanded graphite at a mass ratio of (2.5~4):1 to obtain composite lightweight aggregate. The insulation board prepared by this invention, with a dry density of only 184-193 kg / m³, exhibits a compressive strength as high as 0.275-0.302 MPa, significantly superior to traditional inorganic insulation boards (0.15-0.25 MPa) and organic insulation boards (0.10-0.15 MPa); its thermal conductivity is as low as 0.034-0.041 W / (m·K), and its insulation efficiency is more than 40% higher than that of traditional inorganic materials, while also possessing Class A fire safety performance; furthermore, the process is simple and controllable, with an industrial solid waste utilization rate of up to 70%, demonstrating significant economic benefits and environmental value, and possessing broad prospects for widespread application.

This utility model relates to the field of automotive manufacturing technology and discloses a heat insulation shell fixing structure for an automotive exhaust system. It includes an outer shell, with extrusion plates fixedly connected to both sides of the outer shell, and mounting tubes fixedly connected to both sides of the outer shell. The inner wall of the mounting tubes is fixedly connected with internal threads. Supports are fixedly connected to the opposite sides of multiple mounting tubes, and interfaces are fixedly connected to the opposite ends of multiple support supports. A threaded post is threadedly connected to the inner wall of the internal threads, and a protruding tooth is fixedly connected to the outer wall of the threaded post. A buckle is engaged with the inner wall of the protruding tooth, and a rotating shaft is fixedly connected to the inner wall of the buckle. An installation structure is fixedly connected to the top of the outer shell. In this utility model, the outer shell first covers the exhaust system, causing the extrusion plates on its left and right sides to fit against the exhaust components. Then, through the mutual cooperation between subsequent components, the buckle is finally fixed by the rotating shaft and engages with the protruding tooth, preventing the threaded post from rotating in the opposite direction and avoiding loosening due to vibration, thus completing the locking and fixing process.

The utility model relates to a kind of heat output device and clothes dryer, belong to clothes dryer field, and heat output device includes: support assembly, the support assembly is equipped with first accommodating space and air outlet, the air outlet with the first accommodating space intercommunication;Heating assembly, the heating assembly is set on the support assembly and is located at the first accommodating space;Fan module, the fan module is set on the support assembly, the fan module is used to generate negative pressure airflow and transport the heat generated by the heating assembly towards the air outlet;Thermal insulation shell, the thermal insulation shell is set on the support assembly, the thermal insulation shell extends along height direction, and the thermal insulation shell is used to cooperate with the shell of clothes dryer.This application discloses heat output device by thermal insulation shell along height direction extension and cooperate with the shell of clothes dryer, can effectively reduce the area of clothes dryer shell exposed in hot air, to reduce the risk that shell is softened because of high temperature.

The application discloses a kind of short fiber insulation felt methods for preparing by wet process, short carbon fiber is laid into uniform mesh tire unit by airflow carding technology, after weighing, resin glue solution is sprayed on the surface of mesh tire and is conveyed to the pre-curing of baking tunnel;Using the mold of track reciprocating motion alternately receives the pre-cured mesh tire of conveying belt and the mesh tire unit of new laying machine, new laying mesh tire unit needs to be weighed, sprayed and pre-cured, and after multiple cycles, the dense multi-layer mesh tire structure with controllable layer number is formed;After the mold loaded with multi-layer mesh tire is hot-pressed and cured, the obtained blank is treated at high temperature in a graphitization furnace under inert gas or vacuum protection, and short fiber insulation felt is prepared.The method significantly improves the resin infiltration uniformity and structural density of the insulation felt through the synergistic optimization of resin infiltration and multi-layer laying process, the product density and thermal insulation performance are stable, and it is suitable for continuous production process, and has industrial application potential.

The invention discloses an array device for simultaneous reaction of a large batch of quartz tubes, belongs to the technical field of vacuumizing sealing tube reaction equipment, and solves the problems of limited quartz tube reaction quantity, low efficiency, high energy consumption, poor safety and easiness in damaging a reaction furnace in the prior art. The device comprises a box body made of a high-temperature long-acting use material, a top cover, and a thermal insulation layer and a thermal insulation array layer which are laid in sequence, the corners of the box body are round corners, the top cover sinks and extends to form a closed space with the box body, and the heat preservation array layer is provided with array through holes matched with the quartz tubes, so that the quartz tubes and reactants can be completely coated, and the independent reaction of the large-batch quartz tubes is realized. The device is provided with a vertical structure and a transverse structure, and the transverse device is matched with a buckle structure, so that the array can be prevented from sliding off and fragments can be prevented from splashing. The device can realize synchronous reaction of a large batch of quartz tubes, is high in experiment efficiency, low in energy consumption, stable in heat preservation, good in safety, high in practicability and suitable for various high-temperature closed quartz tube reaction scenes, and each part can be flexibly adjusted as required.

This utility model discloses an ultra-low temperature radio frequency coaxial cable, comprising an inner conductor, an insulator, an outer conductor, and a sheath arranged sequentially from the inside out. It also includes a superconducting reinforcement layer, a buffer compensation layer, and a vacuum insulation layer. The superconducting reinforcement layer is disposed between the inner conductor and the insulator, and the buffer compensation layer is located between the insulator and the outer conductor. The inner and outer sidewalls of the buffer compensation layer are respectively attached to the outer sidewall of the insulator and the inner sidewall of the outer conductor to absorb the stress caused by the difference in thermal expansion coefficients between the inner and outer conductors under ultra-low temperature conditions. The vacuum insulation layer is fitted onto the outer peripheral wall of the sheath and has an insulating cavity inside. The superconducting reinforcement layer reduces the radio frequency loss of the inner conductor, while utilizing the superconducting Meissner effect to suppress eddy current interference in signal transmission, reducing the signal attenuation rate in the superconducting state, and effectively shielding low-frequency electromagnetic noise. It also absorbs the stress caused by the difference in thermal expansion coefficients between the inner and outer conductors under ultra-low temperature conditions.

Structure (10) comprising at least one device (1) connectable to at least one wall (11) of the structure (10), comprising a first and a second metal profiles (2, 3), the first metal profile (2) defining in section at least one first closed chamber (4), the second metal profile (3) defining in section at least one second closed chamber (5) comprising a polymer insulating element (7) which is interposed between the first metal profile (2) and the second metal profile (3), said first metal profile (2), said polymer insulating element (7) and said second metal profile (3) being arranged in series, so as to prevent the contact between the first metal profile (2) and the second metal profile (3) characterized in that said structure (10) defines at least one inner space and one outer space of the structure (10), wherein said first metal profile (2) faces the outer space and said second metal profile (3) faces the inner space and in that said second metal profile (3) comprises two or more chambers (5, 6), wherein said second metal profile (3) is a single element forming in section said two or more chambers (5, 6), wherein said second metal profile (3) is covered by a polymer cover (8) that faces the inner space.

The utility model discloses a detachable water pipe external heat preservation mechanism which comprises a water pipe body, a reinforcing shell is arranged on the outer side of the water pipe body, the reinforcing shell comprises two semicircular half shells, an expansion layer is arranged at the position where the reinforcing shell is attached to the water pipe body, a heat preservation layer is arranged in an inner cavity of the reinforcing shell, and a heat preservation layer is arranged in the inner cavity of the reinforcing shell. The heat preservation layer sequentially comprises an outer protection enhancement layer, a middle efficient heat preservation layer and an inner elastic buffer layer, connecting lugs are arranged at the edges of the half shells, and receding grooves connected through connecting mechanisms are formed in the connecting lugs. The heat preservation mechanism is scientific and reasonable in structural design, quick disassembly and assembly of the heat preservation mechanism are achieved through the connecting mechanism that the two semicircular half shells are matched with the bolts and the nuts, and pipeline overhauling can be completed without tools; the heat preservation layer is of a three-layer structure comprising the outer protection enhancement layer, the middle efficient heat preservation layer and the inner elastic buffer layer, and compared with a traditional single-layer material, the heat preservation efficiency is improved through cooperation of the three layers.

This utility model relates to the field of building wall panels, specifically providing a steel structure prefabricated wall panel, including a decorative panel. A splicing assembly is fixed to the side surface of the decorative panel, and a connecting assembly is fixed to the surface of the splicing assembly. The splicing assembly includes a vertical plate fixed to the side surface of the decorative panel, and multiple sets of horizontal plates are fixed to the side surface of the vertical plate. A connecting frame is fixed to the surface of the vertical plate, and multiple sets of annular holes are fixed to the side surface of the connecting frame, as well as two sets of annular holes. Fixing plates are fixed to both the left and right ends of the vertical plate. In this utility model, the splicing assembly uses a sliding column to drive a convex column to slide. A spring reset, combined with a sliding groove guide, causes the convex column to move axially, achieving rapid engagement and fixing of multiple sets of connecting frames without the need for bolt tightening, thus improving splicing efficiency. The concave-convex structure of the connecting cylinder and the connecting frame enhances connection stability, and the connecting column, combined with the annular holes, further improves stability.

A vacuum insulation body is provided. The vacuum insulation body includes a support unit configured to maintain a vacuum space. The support unit includes a plurality of rods extending vertically between a first plate member and a second plate member. When the pitch of the rods is *a*, the elastic modulus of the material forming the rods is *E*, and when the cross-section of the rods is elliptical, the major axis radius is *n* and the minor axis radius is *m*, satisfying the following formula.

The application belongs to the technical field of semiconductor laser, and relates to a high-performance VCSEL semiconductor laser based on a diamond film. The application aims to solve the problems of low working temperature (600), wide line width and poor beam quality of the VCSEL. The main scheme comprises a substrate (101), a heat dissipation layer (102), a first electrode (103), a first DBR reflection layer (104), a first oxidation limiting layer (105), an active layer (106), a second oxidation limiting layer (107), a second DBR reflection layer (108), and an insulating heat dissipation layer (109) arranged from bottom to top. The insulating heat dissipation layer (109) is provided with a second electrode (110) connected with the second DBR reflection layer (108), and the second electrode is covered with a heat insulation layer.

The utility model discloses a shaping waste gas combustion treatment system, aims at providing a shaping waste gas combustion treatment system who can reduce energy consumption, reduce pollution emission and carbon emission. It includes workstation, a plurality of drying oven, waste gas incinerator, heat exchanger, waste heat recovery ware and exhaust pipe, is installed with burner in waste gas incinerator, and drying oven and exhaust pipe are connected with the upper end of workstation, and waste gas incinerator, heat exchanger, waste heat recovery ware are connected with the lower end of workstation, and workstation is equipped with waste gas inlet pipe and heat recovery pipe, and waste gas inlet pipe and heat recovery pipe all are installed with power fan, and one end of waste gas inlet pipe is connected drying oven, and the other end of waste gas inlet pipe is connected heat exchanger, and one end of heat recovery pipe is connected drying oven, and the other end of heat recovery pipe is connected waste heat recovery ware. The utility model has the beneficial effect of: realize energy saving and emission reduction and reduce pollution and carbon; operation efficient and green environmental protection; system compact, path saving and gas efficient flow.

This invention provides a rare-earth thermal insulation coating suitable for carbon steel substrates and its preparation method. The coating comprises a metal transition underlayer and a thermal insulation surface layer disposed on the surface of the carbon steel substrate. The thermal insulation surface layer comprises 30-50 parts rare-earth hollow spheres, 10-20 parts hollow ceramic microspheres, 2-5 parts filler, 30-40 parts inorganic binder, and 10-20 parts water. This invention employs a composite structure design of "metal transition underlayer - thermal insulation surface layer," achieving a bonding strength between the coating and the carbon steel substrate exceeding 30 MPa, and resisting over 50 thermal shock cycles at 800℃. The coating has a thermal conductivity ≤0.1 W / (m·K), a reflectivity ≥0.9 at 800℃, a thickness of 200-350 μm, and a thermal insulation temperature difference ≥100℃.

This utility model provides a lightweight insulation layer structure for the outer shell of new energy equipment, belonging to the field of new energy equipment protection technology. It includes a lightweight shell, in which a lightweight base layer, a low-weight composite insulation layer, and a protective layer are sequentially fixed from the inside out within the lightweight shell's inner cavity. A docking chamber is formed between the semi-groove cavity and the low-weight composite insulation layer. Pre-connecting components within the docking chamber allow adjacent insulation layer structures to be joined together, and then fixed to the outside of the new energy equipment. Through the lightweight design of each component and the assembly of the pre-connecting components, the installation of the insulation layer structure on the new energy equipment is more convenient. The protruding ridges increase the space occupied by the low-weight composite insulation layer while reducing the space occupied by the lightweight base layer. Furthermore, the low-weight composite insulation layer is lighter than the lightweight base layer, thus achieving a weight reduction effect for the overall insulation layer structure, making it more portable.

The utility model discloses a passive foldable medical cold chain heat preservation box, the heat preservation box includes box body, box lid, flexible outer package layer, the box body includes square bottom plate, and the bottom plate four sides are equipped with corresponding side plate respectively, the box lid includes square top plate, and the top plate includes mutually superimposed and is connected top cover, heat insulation cover, the bottom plate, side plate, box lid outside all are equipped with aluminized woven cloth wrapping layer, the side plate bottom and bottom plate between be equipped with aluminized woven cloth connecting section, aluminized woven cloth connecting section as folding hinge, the bottom plate and side plate are foldable connection through folding hinge, the flexible outer package layer is equipped with the square bag of accommodating box body, box lid, the square bag both sides are equipped with handle, and the square bag is equipped with flap, the utility model discloses novel structure, lightweight, foldable, need not cold accumulator to realize specific temperature area (especially 2 8 DEG C) long -term heat preservation.

A rail vehicle composite material car body roof air duct integrated structure, comprising a car body roof and an interior roof, wherein a cold air duct and a hot air duct are arranged between the car body roof and the interior roof, the cold air duct and the hot air duct are divided into two independent parts through an air duct partition beam, an interior and exterior air duct partition, a cold air duct partition and an air outlet connecting piece, the main air duct and the side air duct in the original vehicle are cancelled, the number of car body parts is reduced, the production and manufacturing efficiency is improved, the whole vehicle carrying efficiency is improved, the car body structure weight is reduced, the cold and hot partition air supply of the car body main air duct is realized, the air conditioner working efficiency is improved, the design space of the car body roof air duct integrated structure is increased, different multi-layer core materials can be arranged, the sound insulation and heat insulation and the electromagnetic compatibility core material can be selected, and different functional requirements of the car body can be realized.

The invention discloses a heat preservation maintenance panel suitable for a high and cold environment, the heat preservation maintenance panel comprises panel foundations, an asbestosed wire gauze and an electric heating film, the asbestosed wire gauze and the electric heating film are clamped between the two panel foundations, and the peripheries of the two panel foundations are fully welded and sealed through a laser welding process; the asbestosed wire gauze is adhered to one side of one of the panel foundations and is flatly attached; the electric heating film is adhered to the surface of the other panel base, and the peripheral sizes of the asbestosed wire gauze and the electric heating film are matched with the panel base; the electric heating film is a semiconductor flexible heating film, and a through hole is formed in the upper portion of the panel base and serves as a heating film wire inlet and outlet channel. According to the heat-preservation maintenance panel, the semiconductor flexible heating film and the gradient bonding layer asbestosed wire gauze have the synergistic effect, and the polyurethane heat-preservation formwork is matched, so that the heat-preservation efficiency is remarkably improved, and the heat-preservation maintenance panel adapts to high-cold and severe working conditions.