118results about How to "Reduce burning rate" patented technology

The invention discloses an aluminum-plastic composite panel with a fireproof structure, and relates to the technical field of aluminum-plastic composite panels, the aluminum-plastic composite panel comprises a fireproof layer, and a top aluminum plate mounting plate is mounted at the bottom of the fireproof layer. Then, the heat is transferred to a heat-conducting metal conduction sheet plate and then transferred to a wire fixing heat-conducting end, so that the temperature is rapidly increased, the wire fixing heat-conducting end transfers heat to a polyethylene fracture node, so that the polyethylene fracture node is melted and fractured, a polypropylene fiber connecting wire ring losing support also melts, a limiting hook is released, and a needling trigger piece rapidly punctures a flame-retardant gas storage device; the flame-retardant gas is released, and the flame-retardant gas is quickly diffused to the periphery of the flame along with the quick release of the flame-retardant gas to form a protective layer, so that the contact between the flame and surrounding combustible materials is effectively isolated, and further spreading of the fire behavior is slowed down or even stopped.

The invention relates to an anti-static PP composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The antistatic PP composite material is prepared from the following components in parts by weight: 60 to 80 parts of PP resin, 10 to 20 parts of glass fiber, 0.1 to 0.5 part of a lubricant, 0.3 to 2 parts of a modified antistatic agent, 0.5 to 1.5 parts of a modified flame retardant and 0.2 to 0.8 part of an antioxidant, in the modified antistatic agent, an alkanolamide bond intermediate forms a conductive film, so that the resistivity is reduced, static dissipation is promoted, the material is endowed with lubricity, and the generation of static electricity is reduced; in addition, maleic anhydride forms a conductive layer and cooperates with quaternary ammonium salt to enhance hydrophilicity and accelerate charge transfer; a piperazine pyrophosphate derivative in the modified flame retardant and a phosphorus-nitrogen flame retardant cooperate to construct an expanded carbon layer to isolate a fire source and oxygen, so that the service life is prolonged; the anti-static PP composite material prepared by the invention not only has a good anti-static effect, but also has excellent flame-retardant and tensile properties.

The invention discloses an ablation-resistant long-fiber reinforced nylon material for a battery pack, and relates to the technical field of nylon materials, the ablation-resistant long-fiber reinforced nylon material comprises the following raw material components by weight: 60-80 parts of nylon resin powder, 30-50 parts of a long-fiber reinforced material, 10-18 parts of aluminum diethylhypophosphite master batch, 8-15 parts of bromine-antimony composite master batch, 3-7 parts of montmorillonite, 12-20 parts of aluminum hydroxide, and 2-6 parts of nano-silica. The composite material is prepared from the following components in parts by weight: 1-4 parts of carbon nanotubes, 0.5-1.2 parts of an antioxidant I, 0.3-0.8 part of a lubricant I, 2-5 parts of a compatilizer, 0.1-0.4 part of a nucleating agent and 0.2-0.6 part of an anti-ultraviolet agent. By adding the diethyl aluminum hypophosphite master batch, the flame retardant property of the nylon material is improved, the processability of the nylon material is improved, the ablation resistance of the nylon material is improved, and the problems of insufficient flame retardant property, poor processability and poor ablation resistance of the nylon material can be solved.

The invention relates to an antistatic functional plastic and a preparation method thereof, and belongs to the technical field of high polymer materials. The plastic with the antistatic function comprises the following components in parts by weight: 80-100 parts of polystyrene resin, 10-20 parts of glass fibers, 1-5 parts of an antioxidant, 2-8 parts of a light stabilizer, 5-10 parts of a modified antistatic agent and 0.3-0.6 part of a modified flame retardant, anhydride groups in the modified antistatic agent are dehydrated at a high temperature to form a conductive layer, static accumulation is effectively reduced, the anhydride groups and quaternary ammonium salt have a synergistic effect on static elimination characteristics and strong adsorption capacity, and meanwhile, the combustion speed is remarkably slowed down through heat absorption and catalysis of maleic anhydride; in the modified flame retardant, an alpha-amino alkyl phosphonate compound is decomposed to generate phosphorus-containing free radicals, a combustion chain is interrupted, nitrogen is released to inhibit combustion, the alpha-amino alkyl phosphonate compound and DOPO cooperate for flame retardance, the flame retardant efficiency is improved, and the prepared antistatic functional plastic has a good antistatic function and also has excellent flame retardant and tensile properties.

The invention discloses a flame-retardant high-strength composite cable material and a preparation method thereof, belongs to the technical field of cable material processing, and is used for solving the technical problem that the mechanical strength and flame retardance of a composite cable material need to be further improved when the composite cable material in the prior art is reinforced by using expandable graphite. The low-density polyethylene composite material is prepared from the following components in parts by weight: 100 parts of low-density polyethylene, 20 to 30 parts of ethylene-octylene copolymer, 25 to 35 parts of composite polysiloxane, 1 to 1.5 parts of dicumyl peroxide, 3 to 5 parts of auxiliary additive and 10 to 14 parts of modified magnesium hydroxide. The low-density polyethylene and the ethylene-octylene copolymer are reinforced to prepare the composite cable material, so that the flame retardant property of the composite cable material is effectively improved, and the mechanical property of the composite cable material is also improved.

The invention discloses an injection molding method of an anti-aging simulation plant. The injection molding method comprises the following steps: preparing raw materials; uniformly mixing the raw materials according to a set material proportioning model so as to obtain anti-aging proportioning raw materials exceeding a preset threshold value; according to the shape and the size of the simulation plant, through a system integrated with an intelligent design engine, design data are extracted, and a design mold is generated; the proportioned raw materials are heated in a heating cylinder of an injection molding machine to be in a molten state, and molten plastic is obtained; the molds are firmly clamped together; injecting the molten plastic into the cavity of a mold under a predetermined pressure; a preset pressure of a preset time is kept in the cavity; cooling and solidifying the material in the mold to form the shape of the mold; and opening the mold to obtain the formed simulation plant. According to the technical scheme, the service life of the anti-aging simulation plant is prolonged, and the safety of the anti-aging simulation plant is improved by optimizing the raw material ratio, accurately controlling the injection molding process and other key steps.

The invention relates to the technical field of release films, and discloses a silicon-free release PET film and a preparation method thereof. The silicon-free release PET film comprises a polymer wax layer, an intermediate layer and a polymer wax layer in order from top to bottom; the intermediate layer is made of the following raw materials: PET, an inorganic modified filler, a composite additive and an antioxidant 1010; wherein the inorganic modified filler is prepared by grafting polyamide-amine onto the surface of aluminum oxide, thereby improving the mechanical properties and high temperature resistance of the film, and avoiding the film from cracking or breaking when subjected to external force; the composite additive is prepared by preparing a chloroether rubber derivative containing nitrogen and phosphorus flame retardants in the structure, thereby improving the toughness and flame retardant properties of the film, and the comprehensive play of these effects enables the silicon-free release PET film to maintain excellent performance and stability and have a long service life.

The invention relates to the technical field of water-based paint, and discloses water-based paint containing modified polyurethane and a preparation method thereof.The modified polyurethane, silicon-containing benzoxazine, water-based acrylic resin, a polyether modified organic silicon defoaming agent, a propylene glycol film-forming agent and water are added into a stirrer and stirred, and the water-based paint containing the modified polyurethane is obtained after stirring is finished. The benzoxazine structure in the silicon-containing benzoxazine can form a heat-resistant phenolic resin structure at a high temperature, so that the water-based paint shows higher thermal decomposition temperature, and the benzoxazine structure is good in heat resistance and high in char forming property and has a better flame-retardant effect; wherein the fluorine element is introduced into the water-based paint, so that a smooth fluorine carbonization layer which is not easy to attach with an object can be formed on the surface of the water-based paint, and therefore, the water-based paint has a relatively good self-cleaning effect; the silicon element can absorb a large amount of heat when being heated, the temperature of the material is reduced, the combustion speed is slowed down, and the flame-retardant effect is achieved.

The invention belongs to the technical field of glass fiber composite materials, and particularly relates to a flame-retardant, heat-insulating and sound-absorbing composite material and a preparation method thereof. By adding zirconium oxychloride, gadolinium nitrate and other materials, the flame retardant property of the composite material is enhanced, the inflammability of the composite material under a high-temperature condition is effectively reduced, and the safety of the material under an extreme condition is improved; the introduction of the phase change material is beneficial to heat management of the material, and heat can be absorbed and stored in a high-temperature environment, so that a good heat insulation effect is provided; the materials such as the modified glass fibers and the basalt fibers are added, and the fibers have good acoustic performance and can effectively reduce noise transmission, so that the sound absorption effect is improved; therefore, the mechanical property of the material is improved, the good durability and stability of the material are ensured, and the long-term reliability of the material is ensured.

The invention discloses a cable for a new energy electric vehicle, and relates to the technical field of cables for new energy electric vehicles, and the cable comprises circulation cavities which are installed at the outer part of a cable wear-resistant protection sleeve at equal intervals, and are used for enabling gas to be dissipated from an exhaust cavity channel formed in the side surface of the circulation cavities in a surrounding manner when pressurized gas is generated in the circulation cavities, under the cooperation of the current-carrying capacity dynamic self-adaptive adjusting assembly, efficient conduction, resistance reduction and current-carrying capacity improvement are integrally and effectively realized, so that the conductivity of the cable is improved, the energy loss is reduced, the high requirement of a new energy electric vehicle on the cable can be met, the overall use performance and safety of the electric vehicle cable are improved, and the service life of the electric vehicle cable is prolonged. Meanwhile, under the cooperation of the dynamic adjusting assembly, when the current is increased, the internal pressure is dynamically reduced, the service life of the cable is prolonged, automatic adjustment and efficient heat dissipation of the internal pressure and temperature of the cable are achieved, and safe and stable operation of the cable for the new energy electric vehicle is guaranteed.

The invention provides a hydrogen combustion device and system, belongs to the technical field of combustors, and aims at solving the problem that high-concentration oxynitride is generated due to the fact that the combustion flame temperature of an existing hydrogen combustion device is high. The device comprises a burner shell, a burner cover and a burner cover, a cavity is formed in the burner shell, the burner shell is connected with a boiler body, and the cavity is communicated with a hearth in the boiler body; the combustor shell is connected with a hydrogen header pipe, a flue gas header pipe and an air header pipe; a pre-combustion assembly and a post-combustion assembly; the pre-combustion assembly is used for spraying hydrogen and air into the hearth and mixing the hydrogen and the air to form first mixed gas; the rear combustion assembly is used for spraying hydrogen, flue gas and air into the hearth and mixing the hydrogen, the flue gas and the air to form second mixed gas; the first combustion assembly comprises an ignition part, the ignition part is used for igniting the first mixed gas, and the ignited first mixed gas is used for igniting the second mixed gas.

The invention relates to the technical field of cable wires, and discloses a high-flame-retardant cable wire and a preparation method thereof. Comprising the following cable raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 30-40 parts of low-density polyethylene, 20-35 parts of modified nano magnesium hydroxide, 2-4 parts of an ultraviolet light initiator, 0.5-5 parts of a phosphorus-nitrogen flame-retardant assistant crosslinker, 0.5-1.2 parts of an antioxidant and 1-2 parts of a lubricant. Vulcanizing by a press vulcanizer, carrying out ultraviolet irradiation crosslinking, and extruding into a wire rod by an extruder. After the phosphorus-nitrogen flame-retardant assistant cross-linking agent and the modified nano magnesium hydroxide are cross-linked with the ethylene propylene diene monomer, the polyethylene and the like, a flame-retardant effect is achieved through synergistic cooperation, so that the prepared cable wire has relatively good flame-retardant property and relatively good mechanical property, is low-smoke, halogen-free, safe and environment-friendly, and is suitable for large-scale industrial application.

The invention relates to a carbonaceous reducing agent pellet with low-order non-caking coal as a main body and application, and belongs to the technical field of efficient and clean utilization of resources. The carbonaceous reducing agent pellets are mainly prepared from low-order non-caking coal as a main body, the main body is matched with a composite organic binder, silica fume and a reinforcing agent, the mixture is subjected to compression molding and then placed in a sintering furnace to be roasted at the temperature of 450-650 DEG C in a protective atmosphere, and furnace cooling is conducted till the carbonaceous reducing agent pellets are obtained. The pellet developed by the invention has the characteristics of high fixed carbon content, high pellet strength, high breakage resistance, good static spheroidization index, low content of introduced impurities and high reaction activity, so that the pellet is particularly suitable for industrial silicon smelting. The low-order non-caking coal is applied in a large proportion, the micro-silicon powder produced by the submerged arc furnace is recycled, and the method is clean and environment-friendly, can be completely used for smelting and production of industrial silicon, reduces smelting unit consumption and production cost, and can replace or partially replace charcoal to become a carbonaceous reducing agent for smelting of industrial silicon.

The invention discloses a heat-insulating and energy-saving material for building and a preparation method thereof, and relates to the technical field of building materials. The invention utilizes modified sodium lignin sulfonate and isocyanate to generate rigid polyurethane foam, which can form an expanded, continuous and dense carbon layer under high temperature conditions, so that the matrix can achieve flame retardant and heat-insulating effects, and in the foaming process, dimethyl methylphosphonate hybrid nano-silica sol is added to achieve strong compressive resistance and heat-insulating performance, and dimethyl methylphosphonate can synergistically act with silica to isolate the entry of external oxygen, thereby increasing the flame retardant and heat-insulating effects of the material; then, modified cellulose nanofibers are grafted on the surface of bamboo fibers to form a solid three-dimensional network structure in the rigid polyurethane foam matrix, and the hollow porous structure of the bamboo fiber cell wall is added to increase the compressive and heat-insulating effects of the polyurethane material. The material prepared by the invention has flame retardant, heat-insulating and compressive resistance effects.

The invention provides an electric arc additive manufacturing system and method based on discontinuous pulse cold welding. The system comprises a discontinuous pulse cold welding gun, a wire feeding guide pipe, a wire feeder and a multi-axis motion platform. The discontinuous pulse cold welding gun is connected with a wire feeder based on a wire feeding guide pipe and installed on the multi-axis motion platform. An electric arc welding wire and a discontinuous pulse cold welding gun are sequentially assembled from front to back; a tungsten electrode of the discontinuous pulse cold welding gun is connected with a negative electrode of the cold welding power source, and the titanium alloy welding wire is connected with a positive electrode of the cold welding power source. According to the method, through the discontinuous pulse cold welding technology, the titanium alloy structural part with the fine-grain weak texture characteristic can be formed in the electric arc additive manufacturing process through simple and convenient equipment and structure; the fine-grain weak texture structure can remarkably improve the strength, toughness and fatigue resistance of the titanium alloy, and has important significance in application of high-performance titanium alloy components in the fields of aerospace, weaponry and other major equipment.

The static smoke removal structure comprises a smoke removal shell, a moxa smoke channel is fixed to the smoke removal shell, the lower end of the moxa smoke channel is used for covering the upper end of a moxa combustion chamber, the moxa smoke channel is provided with a conical smoke removal section, the inner diameter of the conical smoke removal section is gradually decreased from bottom to top, and a static adsorption structure is arranged in the conical smoke removal section. A smoke flowing space for moxa smoke to pass through from bottom to top is formed on the periphery of the electrostatic adsorption structure, and a moxa smoke filtering layer is arranged at the upper end of the moxa smoke channel. The utility model provides an unpowered static smoke removal structure for removing moxa smoke and a moxibustion device using the static smoke removal structure.

The invention relates to a non-combustible spraying polyurethane material for a refrigeration house and a preparation method thereof, the non-combustible spraying polyurethane material for the refrigeration house is composed of a component A and a component B. The volume ratio of the component A to the component B is 1: 0.9-1.7, the component A is prepared from the following components in parts by weight: 15 to 70 parts of polyether polyol composition, 15 to 70 parts of flame-retardant polyether polyol, 15 to 70 parts of flame-retardant polyester polyol, 20 to 45 parts of flame retardant, 0.5 to 3 parts of foam stabilizer, 0.2 to 2 parts of chemical foaming agent, 10 to 30 parts of physical foaming agent and 6 to 16 parts of catalyst; and the component B is prepared from 123 to 333 parts of polymethylene polyphenyl polyisocyanate. The non-combustible polyurethane foam formed by effectively matching the components such as the polyether polyol II, the polyether polyol III, the polyester polyol, the catalyst and the foaming agent and mixing and spraying with the polymethylene polyphenyl polyisocyanic acid has the characteristic of high flame retardance.

The invention relates to the technical field of coatings, and discloses a preparation process of a halogen-free flame-retardant solid powder coating, which comprises the following steps: adding adamantane modified phenolic resin, adamantane modified carbon nanotubes, talcum powder, a coalescing agent propylene glycol and a defoaming agent BYK088 into a high-speed mixer for mixing, feeding into a screw extruder, and carrying out melt extrusion, charging, melting and discharging through the screw extruder to obtain the halogen-free flame-retardant solid powder coating. And tabletting the molten material by a tablet press, crushing, feeding into a pulverizer, pulverizing and grading, separating out superfine powder, impurities and the like by a cyclone separator, and separating out a product by a powder sieve, thereby obtaining the halogen-free flame-retardant solid powder coating. A silicon element and a sulfur element in the halogen-free flame-retardant solid powder coating have a better flame-retardant effect, a cardanol group in adamantane modified phenolic resin has a better antibacterial effect and is synergistically antibacterial with quaternary ammonium salt, and phenolic resin has a large number of reaction sites, so that the substitution degree of quaternary ammonium salt is improved, and the antibacterial effect of the quaternary ammonium salt is better.

The invention provides a grade-preserving recovery method for 7-series aluminum alloy processing aluminum skimmings, a regenerated 7-series aluminum alloy cast ingot and application of the regenerated 7-series aluminum alloy cast ingot. The grading recovery method comprises the following steps: S1, a smelting stage; step S2, a refining stage: step S2-1, carrying out first refining on the first melt to obtain a second melt; step S2-2, proportioning the second melt according to the components of the regenerated melt to be prepared to obtain a third melt; step S2-3, carrying out second refining on the third melt in a protective atmosphere to obtain a fourth melt; s3, a purification stage; and S4, a casting stage. The side well furnace and the smelting furnace cooperate to serve as a continuous aluminum skimming melting system, the aluminum skimming burning loss rate in the recycling and smelting process can be remarkably reduced, the content of slag, hydrogen and alkali metal in the obtained regenerated melt can be effectively reduced through in-furnace two-stage refining, out-of-furnace degassing and filtering means purification, and the purity of the regenerated melt is guaranteed.

The present application relates to the technical field of flame-retardant pipes, and in particular to a low-temperature impact-resistant flame-retardant silicon core pipe and a preparation method thereof. The low-temperature impact-resistant flame-retardant silicon core pipe comprises an inner layer and an outer layer, and the outer layer comprises the following raw materials in parts by weight: 70-90 parts of high-density polyethylene resin, 15-25 parts of star-shaped SBS, 3-5 parts of maleic anhydride grafted high-density polyethylene, 6-10 parts of inorganic flame retardant, 10-15 parts of elastic flame-retardant microspheres, 0.1-0.5 parts of antioxidant, 0.4-0.8 parts of antibacterial agent, 2-4 parts of carbon fiber, 1-3 parts of dispersant and 1-3 parts of silane coupling agent; the invention has the advantages of improving the mechanical properties of the pipe while improving its flame retardant properties.

The invention discloses a high-temperature-resistant adhesive tape for a lithium battery and a preparation method of the high-temperature-resistant adhesive tape, belongs to the technical field of adhesive tape processing, and is used for solving the technical problem that the mechanical strength, high-temperature aging resistance and flame resistance of a high-temperature-resistant adhesive tape for a lithium battery in the prior art need to be further improved. The adhesive tape comprises a base tape layer, an adhesive layer and release paper, wherein one side of the base tape layer is coated with the adhesive layer; the release paper is adhered to the adhesive layer; the base tape layer comprises the following components in parts by weight: 20-30 parts of modified butyl rubber, 30-50 parts of polyisobutene, 7-9 parts of modified siloxane, 3-5 parts of an additive and 35-45 parts of mixed filler; according to the invention, polysiloxane modified nitrile rubber, polyisobutene and modified siloxane are reinforced by a mixed filler composed of modified vermiculite powder and modified calcium carbonate, so that the high-temperature aging resistance of the high-temperature-resistant adhesive tape is effectively improved, and the tensile property and flame resistance grade of the high-temperature-resistant adhesive tape are also improved.

The application relates to the alloy preparation technical field and provides a preparation method of a high-performance tin-copper alloy wire, which comprises the following steps: tin and copper are smelted in a vacuum environment, and then cooled to obtain a tin-copper intermediate alloy; pure copper and the tin-copper intermediate alloy are smelted and refined in a vacuum environment, and then the alloy solution after the refining is drawn to prepare a tin-copper alloy rod; the tin-copper alloy rod is vacuum heat-treated, vacuumizing is stopped after the heat treatment temperature reaches 750-900 DEG C, nitrogen-oxygen mixed gas is filled, tin on the surface layer of the tin-copper alloy rod reacts with oxygen to generate tin oxide, heat treatment is carried out after the heat treatment, heating is stopped after the heat treatment is completed, and natural cooling is carried out to obtain a tin-copper alloy rod blank; the tin-copper alloy rod blank after the vacuum heat treatment is subjected to rough drawing treatment. The preparation method disclosed by the application obtains a high-strength high-conductivity copper-tin alloy wire through a vacuum heat treatment internal oxidation technology, and realizes accurate regulation and control of the composition of a copper-tin alloy wire blank.

The invention relates to a method for prolonging the service life of a blast furnace cooling wall. A blast furnace structure is improved, and the length of a blast furnace tuyere is increased; adjusting the inclination angle of the blast-furnace tuyere small sleeve to reduce the included angle with the horizontal plane; the bosh angle is set to be less than 75 degrees; and the service life of the cooling wall of the blast furnace is greatly prolonged through overall coordination and cooperation by matching with the change of a material distribution mode in the furnace, the improvement of a pellet and natural lump ore adding area, the improvement of a coke adding area and the reasonable arrangement of zinc load.

The invention relates to a central structure of a high-capacity vertical kiln, which is arranged at the center of the vertical kiln; the structure comprises a central cylinder, an upper support assembly, a distributor and an annular discharging device; the central cylinder is composed of a main steel pipe, a cooling air duct, a swirl sheet and a refractory protective layer; the main steel pipe, the cooling air duct, the distributor and the annular discharging device are all coaxially arranged with the vertical kiln; the cooling air duct is arranged inside the main steel pipe, and a swirl sheet is arranged in the annular space between the cooling air duct and the main steel pipe; the invention arranges a central cylinder in the kiln chamber, so that the heating of the material in the kiln is more uniform; the central cylinder is cooled by cooling wind, a refractory protective layer is arranged on the outer side of the central cylinder, the upper end is supported by an upper support assembly, and a matching distributor is arranged, which can effectively prevent the impact of the material entering the kiln and the erosion of the high temperature in the kiln, and the overall structure is more stable.

The invention discloses a waterproof barrier adhesive tape in an aircraft cabin and a preparation method thereof, and relates to the technical field of adhesives. When the waterproof barrier adhesive tape in the aircraft cabin is prepared, graphene oxide sequentially reacts with 2, 5-dimethyl-2, 5-hexanediol and 5-amino-4-imidazole formamide, and modified graphene oxide is prepared; the pre-modified polysiloxane is subjected to a reaction with dimethyl phosphorus and 1, 2-epoxy chlorobutane in sequence, and functional polysiloxane is prepared; the preparation method comprises the following steps: reacting polycarbonate diol, polyethylene glycol, hydroxyethyl methylacrylate, isophorone diisocyanate, 4, 5-bis (hydroxymethyl)-2-phenyl-1H-imidazole and bis (hydroxymethyl) phenylphosphine to prepare polyurethane particles, and carrying out extrusion casting to form a film; mixing a polyacrylate emulsion, functionalized polysiloxane and modified graphene oxide, coating a polyurethane film with the mixture, and drying to obtain the waterproof barrier adhesive tape in the aircraft cabin. The prepared waterproof barrier adhesive tape in the aircraft cabin has a good bonding effect and a good flame retardant effect.

The invention discloses a low-nitrogen burner and combustion method for producing hydrogen by high-temperature cracking of methanol. The burner comprises a combustion main cylinder, wherein a mixed gas chamber is connected with a combustion chamber; combustion-supporting air is passed through the mixed gas chamber; an expansion chamber is arranged in the mixed gas chamber, and the expansion chamber is connected with a vacuum generator exhaust port through a pipeline, and the vacuum generator air supply port is connected with a compressed combustion-supporting air supply source, and the negative pressure port of the vacuum generator is arranged at the flue gas outlet position; a plurality of U-shaped tubes are arranged in the methanol atomization annular chamber, and a methanol balancer is arranged at the left ends of the plurality of U-shaped tubes; a plurality of methanol high-temperature cracking tubes and a combustible gas annular tube are arranged in the combustion chamber; an atomizing methanol nozzle and an ignition device are arranged in the combustion chamber, and the atomizing methanol nozzle and the methanol balancer are connected with a methanol storage device through a transmission pipe. A low-nitrogen burner and combustion method for producing hydrogen by high-temperature cracking of methanol provided by the invention can reduce the generation of nitrogen oxides.

The present invention discloses a hydrogen and diesel dual-fuel generator set, including a chassis, an engine is arranged on the chassis, the engine is connected with a radiator and a brushless generator, a control box is arranged on the brushless generator, the engine includes a diesel feed system, a hydrogen intake system, an air intake system, an exhaust system and a control system, the hydrogen intake system and the air intake system are connected with the cylinder intake port of the engine, and the exhaust system is connected with the exhaust port of the cylinder of the engine. Hydrogen is used to effectively replace diesel fuel, reduce pollution, ensure sufficient fuel supply, and provide a new option for industrial power energy utilization. At the same time, due to the fast combustion speed of hydrogen, the mixed diesel fuel is more fully burned, the fuel utilization rate is improved, and carbon deposition is reduced. By setting a hydrogen intake rail, an embedded hydrogen injection pipe, a hydrogen electronically controlled injection valve and realizing direct injection of hydrogen into the cylinder, the hydrogen intake amount is automatically controlled.

The invention discloses a cable for new energy electric vehicles, relates to the technical field of cables for new energy electric vehicles, and comprises: a circulation cavity, which is equally divided and equidistantly arranged on the outside of a wear-resistant protective sleeve of a cable, and is used for dispersing the gas from an exhaust cavity opened around the side surface thereof when pressurized gas is generated inside; by cooperating with a dynamic adaptive current-carrying capacity adjustment component, the whole effectively realizes efficient conduction, reduces resistance, and increases current-carrying capacity, thereby improving the electrical conductivity of the cable, reducing energy loss, meeting the high requirements of new energy electric vehicles for cables, and improving the overall performance and safety of electric vehicle cables; at the same time, with the cooperation of the dynamic adjustment component, it is convenient to dynamically reduce the internal pressure when the current increases, thereby increasing the service life of the cable, realizing automatic adjustment of the internal pressure and temperature of the cable and efficient heat dissipation, and ensuring the safe and stable operation of the cable for new energy electric vehicles.

The utility model relates to the field of sponges, in particular to a fireproof sound insulation sponge, which comprises a sponge base layer, a sound insulation structure is adhered to the surface of the sponge base layer, the sound insulation structure consists of a sound absorption layer and a sound attenuation layer, sound absorption bulges distributed at intervals are formed on the lower surface of the sound absorption layer, and a sound absorption groove is formed between every two adjacent sound absorption bulges. The surface of the sound absorption layer is provided with vertically-communicated sound absorption holes, the surface of the sound attenuation layer is provided with sound attenuation grooves matched with the sound absorption protrusions, a sound attenuation block matched with the sound absorption grooves in an embedded mode is formed between every two adjacent sound attenuation grooves, the lower surface of the sponge base layer is bonded with a flame-retardant layer through a sound insulation layer, and the surface of the flame-retardant layer is coated with a fireproof agent coating. Noise is reflected and consumed between the sound absorption layer and the noise reduction layer, so that the purpose of reducing the noise is achieved, the sound insulation and noise reduction effect is further improved, the fire retardant coating coated on the surface of the flame-retardant layer forms a flame-retardant fireproof protective layer, and the use safety is improved.

The utility model relates to the technical field of circuit boards, in particular to a dimmable circuit board, which comprises a dimmable circuit board, and a flame-retardant board is arranged at the upper end of the dimmable circuit board. A plurality of cooling fins are arranged in the plate block at equal intervals in a penetrating mode, a notch is formed in the plate block, and a plurality of blades are distributed in the notch in an annular array mode. The flame-retardant plate can effectively slow down the burning speed and even prevent burning when the light-adjustable circuit board encounters high temperature or a fire source, so that the safety of the light-adjustable circuit board is improved, the cooling fins are designed below the light-adjustable circuit board, the working temperature of the light-adjustable circuit board is reduced, the rod body drives the blades to rotate, and therefore the light-adjustable circuit board can be cooled, and the service life of the light-adjustable circuit board is prolonged. Therefore, air flow is accelerated, heat on the cooling fins is taken away, the working temperature of the dimmable circuit board is reduced, the heat dissipation performance of the dimmable circuit board is improved, and the dimmable circuit board is prevented from being damaged due to too high temperature.