333results about How to "High electrothermal conversion efficiency" patented technology

The invention discloses graphene cluster based carbon system electric heating slurry as well as a preparation method and application thereof. The slurry comprises the following components in parts by weight: 10-70 parts of a conductive heat-conduction agent, 10-70 parts of a far-infrared reinforcing agent, 10-60 parts of a solvent, 0.1-10 parts of an additive and 5-60 parts of a resin connecting agent, wherein the conductive heat-conduction agent comprises graphene clusters. By adoption of the mode that the graphene clusters are separately combined with other carbon materials so as to be used as the conductive heat-conduction agent and the far-infrared reinforcing agent of the electric heating slurry, the electrical resistivity of the slurry after being printed into films is greatly reduced, the heat conduction property, the electric heating conversion efficiency and the far-infrared radiation intensity are improved, the manufacturing cost is lowered, the velocity of the slurry is also reduced, the flowability and the transferring printing adaptability of the slurry are improved, and the electric heating slurry has great significance for energy conservation, consumption reduction, health physiotherapy and the like.

The invention discloses an anti-icing and deicing system for a large wind power generation built-up blade. The system comprises a built-up blade body, wherein the built-up blade body is formed through that a fiber heating material layer is laid on an outer surface or a middle surface or an inner surface of a skin made of fiber base metal. A coating layer is laid on the outer surface of the skin to protect the fiber heating material and the skin fiber base metal. Two ends of the fiber heating material layer are respectively connected with a conductive electrode, and the conductive electrodes are connected with a fiber heating power supply through wires. The skin outer surface and the skin middle layer or the fiber heating material layer of the inner surface of the skin are all provided with temperature sensors, and outputs of the temperature sensors are connected with a temperature controller through signal wires. By the system, anti-icing and deicing of the large wind power generation built-up blade under the environment of low-temperature high-humidity and freezing can be achieved, and the problems that generating efficiency is reduced due to icing and electricity generation loss due to stopping are avoided. The anti-icing and deicing system for the large wind power generation built-up blade has important economic and social benefits.

The electrothermal carbon paint includes inorganic conducting material 30-80 wt%, adhesive 20-70 wt% and assistant 1-8 wt%. The inorganic conducting material is one or several kinds of scale graphite, silicon carbide, artificial graphite and conductive carbon black. The electrothermal carbon paint has electrothermal efficiency as high as 93 %, no light energy consumption and wide application.

The invention discloses a carbon nano tube composite carbon crystal paint and a method for preparing a carbon crystal electric heating material from the same, wherein the carbon crystal composite paint is prepared from carbon nano tubes, modified ball milling short carbon fibers, resin paints, infrared emission powder and the like; and the carbon crystal electric heating material is prepared by spraying or scratching the paint into a film on a planar template (paper base template, plastic template and the like), and compositing with an aging proof high molecular material to obtain the planar electric heating material. The carbon crystal composite paint and the carbon crystal electric heating material have strong far-infrared radiation, high electric heating conversion efficiency, small surface temperature difference, good corrosion resistance, weather resistance and aging resistance and high safety, can be compatible with concrete, can be used as a heating product for buildings, and can also be processed into various electric heating products, such as an electric heating plate, an electric heating carpet, a dry wardrobe, a foot warmer, a food warmer and the like.

The invention relates to a carbon nanotube fabric and a heating body using the carbon nanotube fabric. The carbon nanotube fabric comprises a heating element and at least two electrodes, wherein the at least two electrodes are arranged at intervals and are electrically connected to the heating element; the heating element comprises a plurality of carbon nanotubes which are connected end to end; and the at least two electrodes are electrically connected to the carbon nanotubes in the heating element. The carbon nanotube fabric can be applied in the fields of shoe pads, heat insulation clothing, electric blankets, physical therapy instruments and the like.

The invention relates to a plane heat source, comprising a heating element and at least two electrodes which are arranged at intervals and electrically connected with the heating element, wherein the heating element is composed of a substrate and an integrated self-supporting carbon nano tube structure formed by a plurality of carbon nano tubes. The plane heat source can be used for producing self-heating clothes, gloves or shoes, electric heaters, infrared therapy apparatuses, electric radiators and the like and has wide application range.

The invention relates to a heating device and a manufacturing method thereof. The heating device comprises a first electrode, a second electrode and a heating element, wherein the first electrode and the second electrode are arranged at interval; the heating element comprises a first substrate, a second substrate, a first bonding layer, a second bonding layer and a carbon nanotube structure; the carbon nanotube structure is arranged between the first substrate and the second substrate and is combined with the first substrate and the second substrate respectively through the first bonding layer and the second bonding layer; and the carbon nanotube structure is electrically connected with the first electrode and the second electrode.

The invention discloses a graphene heating ink, a preparation method and application thereof. The graphene heating ink comprises the following raw materials by mass percent: 5-15% of carbon black, 10-25% of graphite, 0.1-5% of graphene powder, 0.1-8% of carbon nanotube powder, 25-40% of an adhesive, 1-5% of an assistant, and the balance a mixed solvent. Through combination of dotted carbon black,linear carbon nanotubes and planar graphene, a mutually cross-linked stable structure can be formed inside the ink, and the safety is high. Through improvement of the preparation process and the ink formula components, blistering does not occur easily in the stirring process, and the ink has good adhesion during printing, the electro-thermal conversion efficiency of the heating ink is remarkably improved, the far infrared normal emissivity of an electrothermal film is significantly enhanced, the service life of the electrothermal film is greatly increased, and the power change of 100,000h aging test is less than 2.6%. Also, the implementation process adopted by the invention is simple, efficient and practical.

The invention discloses a method for preparing a carbon fiber reinforced thermoplastic composite material, which comprises the following steps: 1)alternatively paving carbon fiber and thermoplastic resin in a die, wherein a bottom layer and a top layer of the die are thermoplastic resin, closing the die and applying pressure; 2)accessing power supply to a carbon fiber layer, rapidly heating under current effect, when the temperature is higher than the melting point of thermoplastic resin, fusing thermoplastic resin, dipping carbon fiber under pressure; and 3)breaking power, cooling the die, and then opening the die to obtain the carbon fiber reinforced thermoplastic composite material. The method takes carbon fiber as a heat-generating body, the electrothermal conversion efficiency can reach as high as more than 90%, and the energy saving effect is obvious; simultaneously, carbon fiber is capable of melting thermoplastic resin and completing dipping, and has the advantages of short moulding time and good dipping effect, formation of good cross section of thermoplastic resin and fiber can be realized, composite material performance is increased, and processing of product with large thickness can be realized in short time.

The invention discloses a graphene-based electrothermal film capable of efficient heat conduction and a preparation method thereof. The graphene-based electrothermal film comprises an upper insulation material layer, a conductive paste layer, a bottom insulation material layer and an electrode, wherein the electrode is arranged on the conductive paste layer, conductive paste is uniformly coated on a bottom insulation material, and an upper-layer insulation material is attached onto the bottom insulation material coated with the conductive paste by a hot-pressing lamination method to form an insulation material-heat conduction paste-insulation material composite structured electrical heating film. After graphene is added into the electrical heating film, the prepared electrical heating film has relatively high heat conduction performance, the electrothermal conversion efficiency is favorably improved, and the temperature rising time after the heating film is energized is shortened.

The invention provides a graphene flame-retardant elastic composite. The composite is characterized by being prepared from, by mass, 0.5-10% of graphene microchips, 20-35% of fire retardant, 10-30% ofthermoplastic elastomer, 30-60% of solvent and 0.1-1.5% of auxiliaries. In addition, the invention further provides a composite film containing the graphene flame-retardant elastic composite and a preparing method of the composite film. The composite obtained with the thermoplastic elastomer, the fire retardant and the solvent with different elasticity moduli as the film forming materials and thegraphene microchips as the conductive filler has the advantages of flame retardance, high conductivity, bendability, high adhesiveness and the like, and therefore the composite film prepared from thecomposite also has the advantages of flame retardance, high conductivity, bendability, high adhesiveness and the like, and the composite film can be applied in the fields of electromagnetic shielding, far infrared electric heating products, flexible conductive electrodes and the like, is wide in application range, and effectively overcome the problems that an existing electric heating film product is poor in bending resistance and potential safety hazards such as spontaneous combustion are caused by local overheating.

The invention discloses a tubular electronic cigarette heater which comprises a metal tube, an insulating layer wrapping the outer surface of the metal tube, a heating layer for heating the metal tube, and a protection layer covering the heating layer. The heating layer is led out of the protection layer through a lead. According to the tubular electronic cigarette heater, by arranging the insulating layer on the outer surface of the metal pipe and arranging the thick-film circuit heating layer formed by sintering resistance paste on the insulating layer, since a thick-film circuit is quite low in overall thickness and is attached to the insulating layer through high-temperature sintering, the thick-film circuit heating layer can be regarded as one part of the tube wall of the tubular electronic cigarette heater, the tubular electronic cigarette heater has the advantages of being rapid in heating, extremely high in power density and the like and is high in electro-thermal conversion efficiency, and energy consumption is reduced. The invention further provides a preparing method of the tubular electronic cigarette heater and an electronic cigarette with the same advantages.

The invention relates to a high-temperature electric heating film of a flexible nano-carbon composite material and a preparation method of the high-temperature electric heating film. The high-temperature electric heating film is prepared from electric heating film slurry and glass fiber cloth; the high-temperature electric heating film is characterized in that the electric heating film slurry is prepared from a solid material and a solvent at the mass percent of (20%-40%):(80%-60%), wherein the solid material is prepared from graphite of which the particle sizes are within 50nm, carbon black, silver, zinc oxide and a rare-earth material at the mass ratio of 5:2:1:2:0.5; and the solvent comprises xylene, dimethylformamide, polyamide ester and a polyimide polymer solution at the mass ratio of 1:4:1:4. The problems of poor high temperature resistance, flame retardant property and film adhesion in raw materials are solved. The electric heating film has good high-temperature (400 DEG C) uniformity, high heating efficiency and good performance and stability.

The invention discloses an environment self-adaptation modularized intelligent building system suitable for the field. The environment self-adaptation modularized intelligent building system comprises a modularized-assembled building body structure, an assembled house unit bathroom, an assembled house integrated kitchen, an assembled house carbon fiber electric heating floor heating plate, a solar photovoltaic power generation system, a wind power generation system, a wind-solar complementary power system, a roof rainwater collecting system, an FRP digestion tank, a soilless cultivation sunshine vegetable greenhouse, a cooling water curtain and the like, wherein the wind-solar complementary power system is composed of the solar photovoltaic power generation system and the wind power generation system. Solar photovoltaic power generation can be achieved through the building system, energy of power generation can be used for cooling in summer and heating in winter, water resources of the nature can be recycled, and the modularized movable building system can reduce the environment pollution and material waste and can also reduce power supply cost and the like.

The invention relates to the technical field of biomedical engineering methods, in particular to a method for manufacturing a flexible-substrate metal microneedle array. The method includes a, preparing solidifiable iron magnetic fluid; b, manufacturing a flexible substrate; c, arranging liquid drops of the solidifiable iron magnetic fluid on the flexible substrate in an array manner to form a combination of a solidifiable iron magnetic fluid liquid drop array and the flexible substrate; d, disposing the combination obtained in the step c in a magnetic field to enable each liquid drop to become needle-shaped, and solidifying each liquid drop to form a stable and solidified microneedle array structure; e, forming a layer of metal uniform in texture on the surface of the microneedle array structure obtained in the step d through vacuum sputtering to form a metal microneedle array. The microneedle array structure is formed by through mutual action between the magnetic field and the iron magnetic fluid liquid drops containing magnetic nanoscale iron magnetic particles.

The method is: its heating component is carbon fiber that is spiral wrap on the insulation framework, the joint is heat resisting steel joint having enclosed end; the heating component is blocked in the quartz capsule coated with infra red radiation paint, the quartz capsule is filled with high purity inert gases or is vacuum. The invention is specially applied in low temp baking and heating equipment.

The invention discloses an electromagnetic induction heating device and particularly relates to a zero-radiation high-efficient electric heating energy converter. The zero-radiation high-efficient electric heating energy converter structurally comprises a heating inner cavity and a heating outer cavity, wherein the heating inner cavity is formed by sealing the inner wall of an inner cavity heating pipe, the heating outer cavity is formed by sealing the outer wall of the outer cavity heating pipe and the inner wall of an outer casing pipe, an electromagnetic induction coil is placed between the inner cavity heating pipe and the outer cavity heating pipe, and insulating materials are placed between the inner cavity heating pipe and the electromagnetic induction coil as well as between the outer cavity heating pipe and the electromagnetic induction coil. The electromagnetic induction heating device provided by the invention adopts a structural form of an inner and outer combined heating cavity, under the condition of same power, the volume of the heater can be reduced by a half. Moreover, since the magnetic circuit, except the end part, of the electromagnetic induction coil is completely sealed through heating pipe, magnetic flux loss is avoided, zero electromagnetic radiation is realized, and the electric heating energy conversion efficiency is improved.

The invention discloses an electric heating film, an electric heating plate and corresponding manufacturing methods. The electric heating film comprises a substrate and a heating coating, wherein the heating coating comprises an adhesive and a carbon heating material; the carbon heating material is the mixture of carbon black power and graphite powder. Moreover, the invention discloses an electric heating plate using the electric heating film, and manufacturing methods for the electric heating film and the electric heating plate. The electric heating film and the electric heating plate, obtained by the manufacturing methods, are very uniform in heating, free from electromagnetic radiation and harmless to humans, emits no visible light at a temperature of below 500 DEG C and is very high in electricity-heat conversion efficiency; because the heating body is made of a carbon powder material and cannot be oxidized by the oxygen in the air, the service life is long; according to the electric heating film obtained according to the formula and the electric heating plate containing the electric heating film, under the condition of meeting the using power, heat is emitted from a surface and the electric heating film and the electric heating plate are very thin and very small in mass, and the instantaneous heating capacity is very small, so that heating is fast, and the purpose of plugging and heating is achieved.

The invention discloses supersonic electromagnetic-induction heating equipment which comprises a supersonic power supply control system, a supersonic electromagnetic-induction heating device, a first recycle pump, a heat storage device, a second recycle pump and heat radiating fins. The heat storage device is internally provided with a first temperature sensor which is electrically connected with a first temperature controller, and the first temperature controller is respectively connected with the supersonic power supply control system, the supersonic electromagnetic-induction heating device and the first recycle pump. The supersonic electromagnetic-induction heating equipment adopts a supersonic electromagnetic-induction heating mode, has high electrothermal conversion efficiency and low operation cost, reaches the national requirements for saving energy and reducing emission, solves the problem of environmental pollution and has wide application prospects, thereby being the current latest and optimal heating equipment.

The invention discloses a multifunctional air purifying device and a multifunctional escape top window. The multifunctional air purifying device comprises a shell, an air inlet is formed in the front end of the shell, an air outlet is formed in the rear end of the shell, an ACF (activated carbon filter) screen, a double-voltage static ionization dust collection device and a fan are sequentially arranged between the air inlet and the air outlet, a PTC (positive temperature coefficient) heating device is mounted between the fan and the air outlet, the double-voltage static ionization dust collection device comprises a front and back open frame, a high-voltage ionization area is arranged on the front half portion of the frame, a low-voltage dust collection area is arranged on the rear half portion of the frame, a high-voltage electrode is arranged in the high-voltage ionization area, and a low-voltage electrode is arranged in the low-voltage dust collection area. By the aid of the structure, gas is ionized by an electrostatic field, so that dust particles are electrified and adsorbed to the electrode, harmful gas such as formaldehyde, benzene series and ammonia in air can be adsorbed, particulate matters (PM10 and PM2.5) and the harmful gas such as the formaldehyde, the benzene series and TVOC (total volatile organic compound) are remarkably and effectively removed, and a remarkable air purifying function is effectively achieved.

The invention relates to an electric heating skirting, comprising a skirt shield plate. The skirt shield plate comprises a front panel, a top plate and a bottom plate, wherein the surface of the front panel is arranged along a vertical direction, the top end of the front panel is connected with the front end of the top plate, the bottom end of the front panel is connected with the front end of the bottom plate; the front panel, the top plate and the bottom plate form a through groove at the back part of the skirt shield plate along a transverse direction, the opening of the groove is providedwith a heat-insulating cover plate, a wiring radiation plate is fixed in the groove and on the front surface of the heat-insulating cover plate and provided with an electric heat wire; and air outlets are arranged at the upside of the front panel and / or at the top plate and air inlets are arranged at the downside of the front panel and / or at the bottom plate. The invention aims at providing the electric heating skirting which can reduce the effective space usage of a room, has fast and convenient installation, favorable decorative effect and high electrothermal conversion efficiency, and is used for uniformly raising temperature of the room.

Proportioning (volume percent) of the composite material is as following: solidified agent 1-2%, flame retardant 0.5-2%, insulation material 20-60%, nano graphite powder 36-75%. Nonmetallic electrothermal film is prepared through thermoplastic molding and traditional technical molding. Characters of the composite material are as following: capability of any folding for many times repeatedly, water washable, high electrothermic conversion efficiency, portable and long service life. Electrical specification of the composite material is as following: AC or DC 1.2-380V, power 1W-3kW, heating temperature 20-85 deg.C and 100-250 deg.C. The composite material is applicable to thermal wear, electric carpet, drying apparatus and other heating elements.

The invention relates to an instantaneous water heater achieving high-frequency electromagnetic induction heating. Based on the high-frequency electromagnetic induction principle, high-frequency induction current is used for enabling ferrite stainless steel pipes to generate vortex to generate heat rapidly, and water flowing through the stainless steel pipes is rapidly heated with high power; an induction heating assembly is an induction heating coil assembly formed by sealing and fixing induction coils as a whole through high temperature resisting silica gel, and the induction heating assembly is inserted in an annular clearance of an inner and outer pipe composite heating pipe, so that the outer wall of an inner pipe and the inner wall of an outer pipe receive a high-frequency induction magnetic field at the same time to generate vortex to generate heat rapidly; due to the fact that inner and outer induction heating is carried out at the same time through the induction coils, the heating speed is high, no heating power attenuation exists during long-time use, and the electrothermal conversion efficiency is high; due to the fact that three layers of stainless steel plates are arranged on the outer portions of the coils for shielding, electromagnetic radiation is effectively avoided; due to induction heating, electric insulation and isolation are higher, and the hidden danger of electric shocks is effectively avoided; and due to the action of induction heating high-frequency alternating current, water scale is avoided, and the service life of the water heater is prolonged greatly.

This invention relates to the production of nickel-base semiconductor heat producing material. It contains: nickel 50-64%, cobalt 10-23%, titanium 5-12% (weight percentage). This invented material has excellent low voltage performance. It can work under 10-60 volt of direct current. The articles made by said material (nanometer electric heating means) has high conversion efficiency of electricity to heat. It has no problems of leakage of electricity and electric shock. It has advantages of: easy to be used, wide use, with the same can be manufactured being soft heat-producing articles or hard heat-producing articles such as lift-saving warm clothes, electrically heating cap, electrically heating shoes, electric gloves, electric quilt used outdoor and field cooking use for the army.

The invention discloses an oil well sucker rod carbon fiber heating cable and a manufacturing method of the cable. The cable comprises a copper conductor, a conductor insulation layer, a carbon fiber heating layer, a carbon fiber insulation layer and an outer sheath. Ceramic rubber layers are contained in conductor insulation layer and the carbon fiber insulation layer. The carbon fiber heating layer is electrically connected with the copper conductor by multiple inner clamps, and multiple resistors which are mutually connected in parallel are formed. The carbon fiber heating layer is electrically connected with the outer sheath by multiple outer clamps, and parallel loops of the multiple resistors are formed by grounding through adoption of the outer sheath. Each outer clamp is located in the middle position of two adjacent inner clamps. The outer sheath is manufactured by welding and drawing a steel strip along a longitudinal seam. The cable and the method have the advantages that the heating conversion efficiency is high and reaches 98%; the use temperature reaches 600 degrees centigrade; the dampproof and insulation effects are good; the safety performance is high; the strength is high; the service life is long; the manufacturing length reaches more than 2000 meters; welding is carried out without a transverse seam; the tensile property is high; and cable is not liable to rupture.

The invention discloses a heating enhanced floor, and belongs to the technical field of wood floors. The heating enhanced floor comprises wear-resistant paper, decorative paper, balance paper, a substrate, impregnated paper, far-infrared carbon fiber heating paper, a conducting metal plate for a heating floor, a connection terminal, a waterproof two-way male and female plug power cord, a heat insulation layer and an aluminum foil. The heating enhanced floor is manufactured by the steps: preparing raw materials; preparing the substrate; assembling a plate blank; fitting the plate blank; laminating the heating enhanced floor; sawing a plate; mounting the waterproof two-way male and female plug power cord; performing inspection by electrifying; mounting a male and female plug junction box; treating the heat insulation layer; covering the aluminum foil; packaging the heating enhanced floor. The enhanced wood floor has the advantages of safety, energy conservation, high heat efficiency, high speed, simplicity in use, low cost, long service life and health care and maintenance.

The invention relates to a far-infrared carbon fiber composite heating film, which comprises an upper base layer, a lower base layer, a carbon fiber composite heating layer, an upper insulated flame-retardant and heat-resistant waterproof layer and a lower insulated flame-retardant and heat-resistant waterproof layer, wherein the carbon fiber composite heating layer is located between the upper base layer and the lower base layer; and the upper insulated flame-retardant and heat-resistant waterproof layer and the lower insulated flame-retardant and heat-resistant waterproof layer coat the outer sides of the upper base layer and the lower base layer, wherein the far-infrared carbon fiber composite heating film is preferably carbon fiber cloth or carbon fiber composite paper. The far-infrared carbon fiber composite heating film is simple in structure, has good flexibility and can be freely cut and folded; the flexibility is not affected in a low-temperature condition; the load resistance deviation does not exceed 8% after a single side is folded for 1,000 times at a speed of 30times / min; the security and the stability are significantly improved; the service life is long; and furthermore, the far-infrared carbon fiber composite heating film has high external insulativity, high-temperature resistance, open fire resistance and waterproofness, the internal conductivity and the heating property are good and the security is high.

The invention provides an air purification sheet and an air purification module. The air purification sheet comprises a base material sheet, a purification coating and a heating assembly, wherein thepurification coating is arranged on the outer surface of the base material sheet; the base material sheet comprises a first supporting sheet and a supporting sheet; the heating assembly is arranged between the first supporting sheet and the second supporting sheet. Thus, the air purification sheet is simple in structure, convenient to manufacture and low in wind drag. The heating assembly is arranged in the air purification sheet and can make the purification coating rapidly regenerate in situ. The service life of a purifying material is prolonged. The air purification sheet can be used for effectively purifying indoor gaseous pollutants for a long term.

The invention belongs to a preparation method of a titanium film, belongs to the field of electrothermal films and particularly relates to a method for preparing a compact-type porous ceramic-based titanium electrothermal film. The method comprises the following steps of: mixing and ball-grinding titanium or titanium hydride powder, a polyving akohol aqueous solution or a polyvinyl butyral ethanol solution in a certain ratio so as to obtain uniform and stable titanium slurry; then spraying the titanium slurry on a porous ceramic base, drying at a low temperature, and performing high-temperature sintering in the presence of inert gas or under high-vacuum protection, thereby obtaining the compact-type porous ceramic-based titanium electrothermal film. The preparation method is low in preparation process cost, high in production efficiency, high in operability and free from environmental pollution, and conforms to the sustainable development policy; the prepared compact-type porous ceramic-based titanium electrothermal film has the advantages of high electrothermal conversion efficiency, safety, no toxicity, better atomization effect, small driving voltage and the like, and can be applied to electrothermal devices of compact-type medical atomization devices and the like.

The invention provides far-infrared paper. The far-infrared paper has a sandwich structure; a surface layer of the sandwich structure is aramid insulating paper, and a core layer of the sandwich structure is aramid-carbon nanotube paper. The far-infrared paper is used for an electric heating device, and the obtained aramid far-infrared physiotherapy electric heating device has uniform heating, adjustable power and high electrothermal conversion efficiency (close to 100%), can save energy, has physical therapy, warming and health-preserving functions and the like, and can meet the needs of different users.