164results about How to "Achieve thermal insulation effect" patented technology

The invention relates to a method and device for preparing three-component sound-absorption cotton through electrostatic spinning-melt blowing-dry laying. The method includes the following steps of firstly, mixing 10-65 parts by weight of electrostatic spinning nanofiber, 10-65 parts by weight of melt blowing superfine fiber and 10-40 parts by weight of dry fiber to obtain an electrostatic spinning-melt blowing-dry laying three-component fiber net; secondly, conducting processing after required grams per square meter of net is laid in a crossed mode to obtain the finished sound-absorption cotton product. The electrostatic spinning nanofiber, melt blowing superfine fiber and dry fiber are combined to prepare the three-component sound-absorption cotton, the obtained sound-absorption cotton has nano-scale electrostatic spinning fiber, micron-scale melt blowing fiber and thick dry staple fiber of different fineness degrees, the porosity of the sound-absorption cotton is larger due to the electrostatic spinning fiber of a nanometer structure, the fiber close to nanoscale can resonate with sound waves so as to attenuate energy, and the all-frequency sound absorption effect can be enhanced by reasonably configuring through three types of fibers of different fineness degrees.

The invention discloses a three-dimensional structure electrothermal evaporation fabric, a preparation method and application. The fabric comprises an electrothermal evaporation layer, a floating thermal insulating layer and a water absorption layer which are attached in sequence and combined into a whole through binder yarns. The preparation method comprises the steps that warp yarns are arrangedaccording to the selection scheme of yarns; weft yarns of all layers are introduced; the binder yarns are mutually interwoven to weave the warp yarns and the weft yarns of all layers into a whole; coiling is conducted through a stepping motor; after multiple circulation, the fabric is taken down from the machine. The two ends of electrothermal fiber in the electrothermal evaporation layer are connected with electrodes, and water of the electrothermal evaporation layer is heated and evaporated by means of heat generated by the electrothermal fiber. The fabric can float on the water surface, the binder yarns transfer the water to the electrothermal evaporation layer from the water absorption layer, after the electrothermal evaporation layer is energized, electric energy is converted into heat, and rapid evaporation of the water is achieved. The fabric has the three-dimensional integrated structure, the mass is low, the strength is high, the structure is simple, and industrialization production can be achieved; an important application prospect is achieved in the field of sea water desalination and sewage treatment.

The invention provides a hydrophobic heat insulation and cooling film and a preparation method thereof. The hydrophobic heat insulation and cooling film is a polymer porous film, the porosity is 30% -90%, the interior of the hydrophobic heat insulation and cooling film is of a spongy structure, the pore diameters of pores are distributed in a bimodal mode, and the width distribution of the poresis 0.2 micrometer - 0.6 micrometer and 1 micrometers - 5 micrometers respectively. The preparation method of the hydrophobic heat insulation and cooling film comprises the following steps of dissolving a polymer into an organic good solvent, adding a non-solvent to prepare a precursor solution, and spraying the precursor solution onto a substrate to obtain the hydrophobic heat insulation and cooling film. The hydrophobic heat insulation and cooling film is a flexible film material with good hydrophobicity, good heat insulation effect and good cooling effect, shows very excellent flexible performance, can be bent and curled at will, can be suitable for the surfaces of base bodies with different shapes, can achieve effective cooling and refrigeration inside the base bodies, and is good in application prospect and high in practicability; the preparation method of the hydrophobic heat insulation and cooling film has the advantages of simplicity, feasibility, low production cost, high filmforming efficiency and the like, is suitable for large-scale preparation and is beneficial to industrial application.

The invention discloses a fireproof composite wall for building protection. The simple wall comprises a bearing wall (1); multiple prestress dispersion layers (2) are transversely bonded on the two sides of the bearing wall (1) end to end; sandwich layer fillers (3) are cast in two space formed by the prestress dispersion layers (2) and the bearing wall (1); the sandwich layer fillers (3), the prestress dispersion layers (2) and the bearing wall (1) are integrally injected to form a simple wall main body. The simple wall is simple in structure and novel in design, improves the earthquake resistance of the overall wall structure, reduces the design strength and cost of wall components, meanwhile, greatly improves the shear resistance and the integrity, and has such advantages as excellent integrity, excellent earthquake resistance, higher bonding and anti-shearing capacity and excellent finished wall molding effect.

The invention discloses a combined heat insulation type steel-structured ceiling, and belongs to the technical field of steel-structure ceilings. The combined heat insulation type steel-structured ceiling is technically characterized by comprising a bracket, wherein the section of the bracket is triangular; water-insulating layers cover two oblique surfaces of the bracket; the upper ends of the water-insulating layers are hermetically connected; auxiliary brackets cooperating with the bracket are arranged above the water-insulating layers on two sides; heat-insulating layers mutually parallel to the corresponding water-insulating layers are arranged on all the auxiliary brackets; a heat-radiating and flow-guiding gap is formed between the two heat-insulating layers; a flow-guiding bracket cooperating with the bracket is arranged in the heat-radiating and flow-guiding gap; a splayed flow-guiding and sun-shading layer is arranged on the flow-guiding bracket; the upper end of the flow-guiding and sun-shading layer is connected by a sealing element; the flow-guiding and sun-shading layer is located above the heat-insulating layers; inclined struts are arranged on the flow-guiding bracket; flowing-guiding plates are arranged on the lower end surfaces of the inclined struts. The invention aims at providing the combined heat insulation type steel-structured ceiling which is compact in structure and good in heat radiation effect, further, is relatively low in energy consumption, and is used for heat insulation of a steel-structure building.

The invention discloses an antioxidation/heat insulation integrated composite coating which is of a multilayer stacking structure and sequentially comprises a metal transition layer, a rare-earth silicate layer and a rare-earth zirconate layer from inside to outside. The invention further provides a polyimide composite coated with the composite coating. The polyimide composite comprises a fiber-reinforced polyamide resin matrix composite and a composite coating which is applied to the surface of the fiber-reinforced polyamide resin matrix composite; and the composite coating is the antioxidation/heat insulation integrated composite coating. The invention also provides a preparation method of the polyimide composite coated with the composite coating correspondingly. With the adoption of theantioxidation/heat insulation integrated composite coating, the long-time high temperature oxidation resistance and the short-time high temperature ablation resistance of the polyimide composite coated with the composite coating can be improved effectively, so that the application scope of the polyimide composite coated with the composite coating in the field of aviation and aerospace crafts is widened.

The invention provides a permanent antistatic micro-foaming polypropylene composite material and a preparation method thereof, and relates to the technical field of polymer materials. The composite material is prepared from polypropylene resin, a flexibilizer, filler, antistatic master-batches, a foaming agent, an antioxidant, an optical stabilizing agent and a lubricating agent. The polymer permanent antistatic agent can form a polymer network structure in the polymer, is permanently antistatic, still has an antistatic effect in an extremely low humidity environment, and has the advantages of good thermal stability and good chemical resistance.

The invention discloses an assembled sandwich panel with metal surface heat insulation for construction and an installation method, which comprises a metal shell and a thermal insulation layer uniformly filled and bonded in the metal shell, and the upper and lower ends of the metal shell are provided with movable The ribs and grooves cooperate with each other, the ribs are provided with through holes along the width direction, the middle part of the splicing surface around the metal shell is provided with an opening extending along the length direction, and the inner side of the opening is provided with relatively independent left and right support frames. 1. The right support frame is supported between the thermal insulation layer and the metal shell, and is connected at the opening through a silicon rubber pad. The opening can effectively block the thermal bridges on the inner and outer end faces of the metal shell, improving the heat preservation and heat insulation effects, and the bolt connection improves the overall seismic performance of the assembly. It is suitable for packaging and decoration of building exterior walls under various environmental conditions.

The invention belongs to the field of aerospace materials, and in particular relates to an outer skin material for a hangar, and a preparation method of the outer skin material. The outer skin material for the hangar comprises a weather-proof layer, a first bonding layer, a reinforcement layer, a second bonding layer and a heat insulation layer, wherein the reinforcement layer is connected with the weather-proof layer in a cementing way by the first bonding layer, and the other side of the reinforcement layer is connected with the heat insulation layer in a cementing way by the second bonding layer. The outer skin material provided by the invention has good gas barrier property, weather fastness, high-frequency weldability, wear resistance and mechanical property; a double-sided aluminized polyethylene terephthalate (PET) film adopted by the outer skin material has low absorptivity-emissivity ratio, thus effectively reducing the fluctuation, caused by temperature change, of inside and outside pressure difference of skin; the outer skin material for the hangar is prevented from fading in an outdoor severe environment, and has excellent weather fastness; the outer skin material realizes infrared stealth performance and heat-insulating property.

The invention provides an air pollutant detector based on a graphene infrared emission unit. Multi-infrared radiation is realized by utilizing a wrinkle-shaped structure of graphene microspheres in amulti-infrared emission coating under the cohesion and combination effects of macromolecules, the heat generation effect of a graphene layer, the insulation effect of an insulation aluminum-silicon compound and cooperation of small-molecule high-radiation inorganic particles; the detection unit is used for receiving infrared light which is emitted from the infrared emission unit and passes throughgas to be detected after being filtered by an optical filter, so that the detection of air pollutants is realized; and the optical filter of the gas detection device can be replaced, and the gas detection device is used for detecting various gases and is simple to operate and low in cost.

The invention discloses a production technology for an integrated tray type polyurethane heat-insulating heating tile. The production technology comprises the following steps: (1) putting a ceramic panel into a forming mold; (2) putting a tray containing a carbon fiber heating material on the back of the ceramic panel; (3) pouring a polyurethane foaming raw material into the forming mold, closing the mold, polymerizing polyurethane after 8-15min, opening the mold and taking out, thereby acquiring the integrated tray type polyurethane heat-insulating heating tile. The production technology has the advantages of simple process, high controllability and facilitation of large-scale production. The prepared floor heating tile has the advantages of long service life, convenience in mounting, high heating speed, high heat supply efficiency and attractiveness.

The invention belongs to the technical field of wall joint connecting and manufacturing in building structure engineering, and particularly relates to a prefabricated built-in insulating layer foamedconcrete composite wall-light steel frame connection joint. A composite wall is installed in a half-embedded mode, a built-in insulating layer and inner sheet foamed concrete are embedded into a lightsteel frame, and external sheet foamed concrete externally covers a light steel frame beam-column. Compared with a traditional prefabricated wall, a wall body of the prefabricated built-in insulatinglayer foamed concrete composite wall-light steel frame connection joint can be used as a structural stress member, mutually transfers the load with the frame beam-column, participates in the structure stress of a building, and improves bearing capacity and anti-seismic capacity of the building, and a wallboard externally covers the steel frame beam-column to effectively reduce the corrosion of steel. The composite wall-frame joint realizes the bolt connection by pre-embedding bolts in the composite wall and welding connection angle iron on the frame structure beam-column; and the prefabricated built-in insulating layer foamed concrete composite wall-light steel frame connection joint is simple in structure form, reliable in connection and easy to construct, can effectively shorten the construction period when applied to practical engineering, and is suitable for wide popularization and application in low multi-layer light steel frame structures.

The invention discloses a greenhouse solar energy storage water heater wall panel and a building solar energy storage water heater wall panel, and belongs to the fields of agricultural production equipment and housing construction. A water tank is arranged on the inner side of a heat-collecting glass tube, and the inside of the water tank is provided with an energy storage tank which is filled with energy storage liquid prepared by mixing salt, ferric oxide, acetic acid and water; one end of the energy storage tank is provided with an energy storage liquid crystallizing exciter which is provided with magnetic exciting plates; and when the exciting plates vibrate, the energy storage liquid is crystallized under the excitation of the exciting plates and releases heat to heat the water outside the energy storage tank. The greenhouse solar energy storage water heater wall panel and the building solar energy storage water heater wall panel have the advantages that: the energy storage tank realizes two-time solar energy utilization; and the inner side face of a main water tank can be embedded with an insulation board or ventilating board so as to realize free change of heat insulation and direct heat dissipation. The greenhouse solar energy storage water heater wall panel and the building solar energy storage water heater wall panel have important significance for protecting environment, saving energy and reducing emission, improving agricultural productivity, accelerating agricultural modernization and improving quality of life of people.

The invention discloses a high-temperature-resistant synchronous reluctance motor, and relates to the field of high-temperature-resistant motors. At present, a high-temperature-resistant motor which stably operates in a high-temperature environment of 200 DEG C or above generally adopts a common three-phase asynchronous motor, and the operation reliability in the high-temperature environment is insufficient. The linear motor comprises a base, a linear stator and a rotor, a front end cover, a rear end cover, a front bearing and a rear bearing, cooling fan, fan cover and junction box, the linearstator comprises a laminated stator core punched by a silicon steel sheet with a high-temperature-resistant insulating layer on the surface, and a high-temperature-resistant stator winding, wherein the high-temperature-resistant insulating paper, the high-temperature-resistant slot wedge and the high-temperature-resistant outgoing line are arranged in the motor body, the rotor comprises a rotor core formed by laminating rotor punching sheets of the synchronous reluctance motor, the outer surfaces of the rotating shaft, the motor base, the front end cover, the rear end cover and the junction box are provided with high-temperature-resistant heat-insulating coatings radiating outwards in one direction, and the fan and the fan cover are made of high-temperature-resistant materials. The synchronous reluctance motor is adopted, and normal operation of the motor and components in the junction box under the high-temperature condition can be guaranteed through the high-temperature-resistant heat insulation coating.

The invention discloses an efficient colored heat-insulating and cooling coating as well as a preparation method and application thereof, the efficient colored heat-insulating and cooling coating takes a polymer porous film as a bottom layer, and an infrared transparent colored film is arranged on the polymer porous film. The preparation method comprises the following steps: preparing the polymer porous film and preparing the infrared transparent color film on the polymer porous film. The efficient colored heat-insulating and cooling coating has the advantages of being adjustable in appearance color, high in sunlight reflecting capacity, good in heat-insulating and cooling effect and the like, the coating is attached to the surface of a base body needing temperature adjustment and the skin surfaces of animals and human bodies in a covering, coating or pasting mode and the like, the color requirements of city appearance, pollution prevention and the like are met, and meanwhile the heat-insulating and cooling effects are good. The efficient cooling effect can be shown, refrigeration energy consumption is greatly reduced, the use value is high, and the application prospect is good. The preparation method has the advantages of being simple and easy to implement, low in production cost, high in film forming efficiency and the like, is suitable for preparing a large-area coating material and is beneficial to industrial application.

The invention discloses a fullerene modified fireproof thermal-insulation coating material and a preparation method thereof, and belongs to the technical field of coatings. The fireproof thermal-insulation coating material is a water-based environment-friendly coating and comprises the following raw materials in parts by weight: 15-42 parts of a resin emulsion, 14-51 parts of pigment and filler, 3-11 parts of an auxiliary agent, 0.3-5 parts of carbon fibers, 0.02-4 parts of fullerene, 3-12 parts of nano hollow porous thermal-insulation filler, 1-10 parts of a fire retardant and 16-50 parts ofdeionized water. The coating material prepared by the invention has functions of fire resistance, heat insulation and corrosion resistance, so that the situation that an equipment surface or a building surface needs to be repeatedly coated with different coatings is avoided, and the problem that rejection among different coatings and differences among construction processes are required to be considered is solved; moreover, the problems of poor corrosion resistance and the like of a conventional heat-insulation coating can be solved, so that the coating material provided by the invention can be widely applied to outer surface spraying of civil building outer walls, industrial equipment, storage tanks, pipelines and the like.

The invention provides a heat insulation pad. The heat insulation pad is positioned between a low-temperature assembly and a high-temperature assembly, and comprises an upper titanium alloy cap, a polyimide column and a lower titanium alloy cap; a structure can be realized by embedding the polyimide column into the upper titanium alloy cap and the lower titanium alloy cap, and can also be realizedby embedding the upper titanium alloy cap and the lower titanium alloy cap in the polyimide column, and are fixedly connected through screws, when in a unstressed mode, a gap is reserved between theupper titanium alloy cap and the lower titanium alloy cap, and a gap value between the upper titanium alloy cap and the lower titanium alloy cap is 0 after the screws are screwed according to the 80%pre-tightening force. The heat insulation pad provided in the application adopts the heat insulation pad with a titanium alloy and polyimide composite structure, the rigidity is provided through the titanium alloy, the structure size is kept stable, thermal resistance is provided through polyimide and a separation interface, and finally large thermal resistance, high rigidity and high size stability of the heat insulation pad are realized.

The invention provides a preparation method of a titanium alloy three-dimensional lattice heat-resistant structure filled with aerogel. The preparation method is mainly technically characterized in that the lower half part of an internal space of the titanium alloy three-dimensional lattice heat-resistant structure is filled with the aerogel, and the upper half part of the internal space of the titanium alloy three-dimensional lattice heat-resistant structure is actively cooled through gas; and a closed type plasma module is arranged outside the titanium alloy three-dimensional lattice heat-resistant structure in a covering manner, and a plasma excitation power source is put inside the titanium alloy three-dimensional lattice heat-resistant structure. By means of the preparation method, the preparation cost can be low, efficiency can be high, and a high-temperature-resistant thermal protection integrated structure which is large in size and provided with a complex molded surface can beprepared; the heat dissipation and heat insulation effects are effectively achieved; meanwhile, good mechanical performance and the high bearing capacity are achieved; the closed type plasma module is used for absorbing electromagnetic waves; and meanwhile, the plasma excitation power source is put at the inner side of the titanium alloy three-dimensional lattice heat-resistant structure, and theelectromagnetic waves transmitted by the plasma excitation power source can be effectively shielded.

The invention discloses a fire-resistant building curtain wall. The fire-resistant building curtain wall comprises a shell assembly, a transmitting assembly and a fire-resistant assembly; the fire-resistant assembly comprises a dehydrant layer, a foaming source layer and a carbonizing agent layer, the dehydrant layer is located on the inner side wall of a honeycomb core and fixedly connected withthe honeycomb core, the foaming source layer is located on the inner side wall of the dehydrant layer and fixedly connected with the dehydrant layer, and the carbonizing agent layer is located on theinner side wall of the foaming source layer and fixedly connected with the foaming source layer; by arranging the foaming source layer in the honeycomb core, the honeycomb core is heated to be expanded, the effect of blocking air is improved, and fire resistance is facilitated; by arranging the carbonizing agent layer in the honeycomb core, the carbonizing agent layer is heated to form activated carbon, and then the effects of insulation and heat transfer blocking are achieved, so that the fire-resistant property of the building curtain wall is improved; by arranging the dehydrant layer in thehoneycomb core, water in the carbonizing agent layer is removed, and the carbonizing agent layer is assisted in being converted to be the activated carbon.

The invention belongs to the related technical field of additive manufacturing, and discloses a device for improving the heat insulation effect based on additive manufacturing. The device comprises an upper solid plate, a lower solid plate and a plurality of eight-truss unit cell structures which are arranged between the upper solid plate and the lower solid plate and are connected in an array mode. Each eight-truss lattice unit cell structure is obtained through Boolean union set operation of a BCC unit cell and a regular octahedral unit cell. The BCC unit cells serve as peripheral structures, the regular octahedral unit cells serve as internal structures, and the diameter ratio of connecting rods of the BCC unit cells to connecting rods of the regular octahedral units is less than 1. By means of the device for improving the heat insulation effect based on additive manufacturing, traditional production of lattice structure parts through casting forming and the like is abandoned, the three-dimensional lattice structure parts with high precision and excellent surface quality can be produced, stress concentration is avoided when external force is borne, and the device has the advantages of being light in weight, short in development period and good in heat insulation effect.

The invention belongs to the technical field of air conditioner blowing and discloses an air conditioner and an air deflector of the air conditioner. An outer surface of an upper cover facing to an air outlet of the air conditioner is set as a convex curved surface, so that hot airflow can more easily flow to the ground, and meanwhile, the air blowing distance is prolonged; a filling layer is arranged for supporting the upper cover and preventing the upper cover from bending after the upper cover is heated and deformed; the filling layer has a heat-insulating function; the condensation and water drop on a lower cover caused by the heat or cold energy of the upper cover transferred onto the lower cover can be avoided; and the user experience is promoted.

The invention relates to the technical field of building construction, and discloses a heat insulating energy saving device for a building external wall. The heat insulating energy saving device comprises a heat insulation plate, a heat transfer plate is fixed to one side of the heat insulation plate, the heat transfer plate is provided with a heat transfer cavity, the heat transfer cavity is internally provided with a heat guide pipe, two locating plates horizontally arranged are fixedly mounted in the heat transfer cavity, the locating plates are fixedly connected with the heat guide pipe, a main flow pipe is fixedly connected to one side of the heat guide plate, the main flow pipe is provided with a conveying hole, the conveying hole communicates with the external world, an air inlet hole is formed in one side of the heat guide plate, an air supply fan and a heating wire are fixedly mounted in the air inlet hole, a sealing cover is arranged on the inner wall of one side of the heat transfer cavity, the sealing cover communicates with the air inlet hole, and one end of the heat guide pipe is fixedly connected with the sealing cover. According to the heat insulating energy saving device, the heat insulation function of the wall body is achieved, meanwhile the functions of temperature rising and heat insulating are achieved indoor, thus the indoor heat insulating effect is good, the use ratio of energy is increased, and the heat insulating energy saving device is easy to generalize.