91results about How to "Isolated transmission" patented technology

The invention relates to a coaxial reverse rotation gear set type inerter damping negative stiffness ternary resonance unit and super foundation, a driving outer cylinder is sleeved on a screw rod, a nut and a driving gear are sleeved on the screw rod, the driving gear is fixedly connected with the nut, the driving gear is meshed with a first reverse rotation gear and a second reverse rotation gear, and the first reverse rotation gear and the second reverse rotation gear are meshed with each other. The center shaft is sleeved with the second reverse rotation gear through a second rotating cylinder and fixedly sleeved with the second reverse rotation gear, the center shaft is sleeved with the first reverse rotation gear through a first rotating cylinder and fixedly sleeved with the first rotating cylinder, the first rotating cylinder and the second rotating cylinder are arranged in an inner-outer sleeving mode, and the center shaft is fixedly connected with the base. The first inertia disc is fixedly connected with the first rotating cylinder, the second inertia disc is fixedly connected with the second rotating cylinder, and electrified coils are arranged between the first inertia disc and the second inertia disc, are arranged in pairs and are fixedly connected with the inertia discs. Compared with the prior art, flexible adjustment of structural rigidity, absorption and dissipation of vibration energy and maximum utilization of energy consumption and efficiency improvement are achieved.

The invention discloses preparation of flame-retardant high-toughness PMI foam, and relates to the technical field of high-performance materials. Methacrylic acid, methacrylonitrile, an initiator, a modifier, a foaming agent, a cross-linking agent and a nucleating agent are adopted as main raw materials, a reaction solution is obtained after thickening treatment, then the reaction solution is injected into a mold, and water bath polymerization reaction and heating foaming are performed to prepare the foaming agent. The PMI foam material prepared by the method has excellent flame retardance and high toughness, and is suitable for the fields of aerospace, rail transit and high-end structural materials.

The invention relates to the technical field of rubber materials, and discloses a flame-retardant silicon carbide ceramic rubber material and a preparation method thereof. The flame-retardant silicon carbide ceramic rubber material is prepared by taking methyl vinyl silicone rubber as a main base material and adding MIL-100 (Fe, Co) coated CSiCNS, modified mica powder and other auxiliaries, not only has excellent high temperature resistance and corrosion resistance of silicone rubber, but also has excellent wear resistance of a ceramic material; wherein the MIL-100 (Fe, Co)-coated CSiCNS is prepared by taking a silicon carbide nanosheet as a substrate for modification, and is used as an inorganic flame-retardant component in the substrate, so that the flame-retardant property of the rubber material is improved; the modified mica powder serving as a ceramic forming filler not only endows the matrix with a certain flame retardant property, but also can be subjected to melting and eutectic reaction with the silicone rubber at high temperature to form a hard ceramic body, so that the flame retardant property of the matrix is further improved.

The novel high-frequency inductor comprises an inductor body, a protective shell is arranged at the top of the inductor body, mounting boxes are fixedly connected to the left side and the right side of the protective shell, movable shafts are movably connected to inner cavities of the mounting boxes through bearing seats, and adjusting plates are fixedly connected to the surfaces of the movable shafts. Through cooperation of the inductor body, the protective shell, the mounting box, the movable shaft, the adjusting plate, the supporting rod, the push plate, the clamping block, the clamping groove, the heat dissipation block, the heat dissipation mechanism and the pins, the inductor body is protected through the protective shell, the inductor body is cooled through the heat dissipation mechanism, the service life of the inductor body is prolonged, and when disassembly is needed, a pressing plate is pressed, so that disassembly is convenient. The pressing plate drives the adjusting plate to rotate with the movable shaft as a circle through the ejector rod, the adjusting plate drives the clamping block to move through the supporting rod and the push plate so that the clamping block can be separated from the clamping groove, the effect of high practicability is achieved, and the problem that an existing device is low in practicability is solved.

The invention relates to the technical field of coatings, in particular to a water-based thermal insulation material containing rare earth elements. The invention relates to a rare earth element-containing water-based thermal insulation material, which is prepared from the following raw materials: 50 to 55 parts of water-based hollow elastic rubber microsphere modified silicone acrylic emulsion, 12 to 15 parts of modified hollow glass microsphere, 7 to 9 parts of rare earth nano thermal insulation agent, 12 to 14 parts of nano TiO2 modified aerogel dispersion liquid, 6 to 8 parts of kaolin, 0.5 to 0.8 part of thickening agent, 0.5 to 0.7 part of dispersing agent, 1.5 to 2 parts of film-forming agent and 1.4 to 1.6 parts of defoaming agent. The rare earth nano heat insulation agent is water-based dispersion slurry of cerium series rare earth oxide, and the rare earth nano heat insulation agent is water-based dispersion slurry of cerium series rare earth oxide. The rare earth element-containing water-based thermal insulation material provided by the invention has the advantages of excellent thermal insulation performance, good adhesive force, environmental protection performance, aging resistance, simple construction process, lower production cost and the like, and has very high practical value and application prospect.

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 utility model relates to the field of labels, in particular to an anti-fake self-adhesive label for food, which comprises release paper and a self-adhesive label body, the middle of the top of the release paper is adhered to the bottom of the self-adhesive label body, and the release paper can guarantee that self-adhesive at the bottom of the self-adhesive label body is polluted and damaged. The self-adhesive label body is sequentially provided with a fixing layer, a damp-proof layer, a heat insulation layer, an anti-oxidation layer and an information layer from bottom to top, the damp-proof layer can isolate water vapor and prevent self-adhesive label paper from being wetted, the heat insulation layer can isolate external heat and prevent non-setting adhesive from being melted due to too high temperature and affecting the viscosity of the self-adhesive label, and the anti-oxidation layer can prevent food from being oxidized and prevent food from being damaged. The information layer comprises a base film and a protective film, an image-text label is arranged between the base film and the protective film, image-text information and anti-fake information can be printed, the base film and the protective film are bonded through hot pressing, the image-text label paper is protected, and the protective film can prevent the self-adhesive label from being abraded or torn.

The invention provides an efficient continuous oily sludge pyrolysis device and method, the efficient continuous oily sludge pyrolysis device comprises a pyrolysis assembly (10), and the pyrolysis assembly (10) comprises a first-stage pyrolysis reactor (100), a second-stage pyrolysis reactor (101) and a third-stage pyrolysis reactor (102) which are sequentially communicated from top to bottom. By introducing the continuous pyrolysis design, the downtime is shortened, the treatment efficiency of the oily sludge is remarkably improved, and the requirement for large-scale oily sludge treatment is met; the design of bottom combustion gas heating and top feeding is adopted for the pyrolysis reactor, so that a high-low temperature area is effectively formed, the pyrolysis temperature gradient is enhanced, rapid decomposition of the oily sludge is promoted, the heat utilization rate is increased, and the heat loss is reduced.

The invention discloses a heat insulation and heat dissipation mold seat of a paper-plastic forming machine, which comprises a mold seat, a first heat insulation plate, a plurality of heat insulation layers, a second heat insulation plate, an air chamber cover plate, a heating air chamber plate, a third heat insulation plate and a heating plate which are sequentially connected from top to bottom, the plurality of heat insulation layers are uniformly arranged on the other end surface, far away from the mold seat, of the first heat insulation plate, and the air chamber cover plate is arranged on the second heat insulation plate. The heating air chamber plate, the third heat insulation plate and the upper heating plate are sequentially installed on the other end face, away from the heat insulation layer, of the second heat insulation plate, and when the device is used, the third heat insulation plate is arranged on the heating plate of a main heating component in the hot press forming step, and the second heat insulation plate, the heat insulation layer and the first heat insulation plate are arranged upwards in the direction of a machine frame of a forming machine. Therefore, the heat is effectively prevented from being transmitted to the machine frame of the forming machine, the thermal deformation of the machine frame is reduced, the precision of the machine frame is improved, and the yield of paper pulp molded products is improved.

The invention discloses a fresh air oxygenation air conditioner, and belongs to the field of electronic information. The Maimind air conditioner comprises an indoor remote control air feeder and an outdoor air conditioner host; wherein the indoor air feeder comprises a remote controller, a chip for controlling the rotating speed of a motor to reach the adjusted temperature, an air feeder and a heat insulation air pipe; the air conditioner host comprises a protective and sound-absorbing outer box body, a main air pipe, vortex blades, a motor, a choke cone, a cold air pipe, a hot air pipe, an electromagnetic valve switch and an insulated wire; when the main air pipe passes through the main air pipe, due to the fact that the speed of the outer-diameter rotating air vortex is high, active air molecules absorb radial cold air to block the radial cold air and reversely flow out of the cold air pipe, and outer-diameter hot air flows out of the end amplifying pipe. And the air flows into an indoor remote control air feeder through an electromagnetic valve switch to realize the refrigerating and heating effects of the Maimind air conditioner.

The present invention relates to the technical field of building materials (IPC classification number is C04B28 / 04), and in particular to a high-temperature resistant inorganic artificial stone and a preparation method thereof, comprising an inorganic artificial stone substrate and a high-temperature resistant heat-insulating coating coated on the surface of the inorganic artificial stone substrate. In the present invention, the simultaneous addition of fillers, coupling agents, and expansion agents can form chemical bonds between cement gel products and fibers, can enhance the bonding force between fibers and aggregates and cement, improve the flexural strength and toughness of the board, resist high-temperature deformation and cracking of the board, and the addition of thickeners makes the board have higher conjunctival strength and adhesion, can improve the density of the board, and improve the working performance of the board. The surface heat-resistant temperature of the prepared inorganic artificial stone can reach 300-400°C, which broadens the application range of the inorganic artificial stone.

The application belongs to the technical field of composite materials, and discloses an interface flame-retardant modified bamboo fiber / epoxy resin composite material as well as a preparation method and application thereof. 2+ The stable flame-retardant layer is constructed at the interface between the bamboo fiber and the epoxy resin by using alkali treatment, polydopamine coating deposition, Zn The interface layer does not destroy the original structure of the bamboo fiber, and improves the interface compatibility of the bamboo fiber and the epoxy resin, so that the overall mechanical properties of the composite material are improved; meanwhile, the flame-retardant properties of the composite material are improved.

The invention discloses a cold-proof, heat-insulating, heat-preserving and waterproof fabric and a preparation process thereof, belongs to the technical field of textiles, and solves the problems that the current fabric needs to be cold-proof, heat-insulating, warm-keeping and waterproof at the same time and is very difficult to be light in weight. Comprising a cloth cover, a plurality of bumps distributed in an array are woven on the two sides of the cloth cover, the cloth cover is formed by weaving air fibers, the air fibers comprise a plurality of nodes and a plurality of branch fibers integrally formed between the adjacent nodes, and micro spaces are formed between the branch fibers in the same group between the adjacent nodes. And the volume of the micro space is smaller than that of a single branch fiber between adjacent nodes. According to the cold-proof heat-insulation heat-preservation waterproof cloth, the innovative air fiber weaving technology is adopted, and the light, thin, heat-preservation, heat-insulation and waterproof effects are achieved through micro-space and node design.

The invention belongs to the technical field of sensors, and particularly relates to a small-size vehicle PTH temperature, humidity and pressure integrated sensor which comprises a shell, a pressure sensing unit, a temperature and humidity sensing unit and a signal collecting and processing unit. The temperature and humidity sensing unit comprises a temperature and humidity sensing substrate and a temperature and humidity sensing chip which are longitudinally arranged below the base; the signal collecting and processing unit comprises a main PCB (Printed Circuit Board) which is transversely arranged above the base; the main PCB is transversely arranged above the base, the temperature and humidity sensing substrate is longitudinally arranged below the base, the main PCB and the temperature and humidity sensing substrate are separated through the base, signal interference can be avoided, heat transfer can be isolated, and the detection precision is greatly improved; and the temperature and humidity sensing substrate is opposite to the flow guide channel and is electrically connected with the main PCB through a plurality of connecting pins, so that complete independence of temperature, humidity and pressure acquisition is realized on the premise that the radial size of the sensor is not increased or even reduced, and comprehensive measurement of temperature, humidity and pressure is realized.

The utility model discloses AG glass which comprises an AG glass body, the surface of the AG glass body is fixedly connected with an AF coating, the inner side face of the AF coating is fixedly connected with an AG anti-dazzle layer, and the inner side face of the AG anti-dazzle layer is fixedly connected with a transparent frame. And the back surface of the transparent frame is fixedly connected with a reflecting film. According to the anti-dizziness high-transmittance AG glass, through the arrangement of the AG anti-dazzle layer, the reflecting film and the anti-dazzle cellulose triacetate film, the reflecting surface of original glass is changed into a matte diffuse reflection surface through the AG anti-dazzle layer, the reflected light can be affected to be blurred, the anti-dazzle effect is improved, and the moth eye protrusions distributed in equal columns are arranged on the surface of the reflecting film, so that the anti-dazzle effect is improved when strong light irradiates. According to the anti-dizziness glass provided by the invention, the anti-dizziness cellulose triacetate film can absorb strong light ingested on the glass, the light reflection is inhibited, the anti-dizziness effect is achieved, the user experience is improved, and the anti-dizziness cellulose triacetate film further enhances the anti-dizziness capability, reduces the influence of the reflected light on human eyes, protects the body of a user and improves the safety.

The utility model provides an energy storage system, which comprises an energy storage cabinet, and a battery pack, a cooling device and an energy storage converter which are arranged in the energy storage cabinet, the energy storage cabinet comprises a cabinet body with an opening in one side and a cabinet door hinged to the cabinet body, the interior of the cabinet body is divided into a battery bin and an electrical bin which are arranged up and down, and the interior of the battery bin is divided into a plurality of containing spaces which are arranged up and down in a stacked mode through separation structures. The cooling device and the energy storage converter are both arranged in the electrical bin, a water cooling plate is arranged in the energy storage converter, the cooling device is connected with the battery pack and the water cooling plate through pipelines so as to cool the battery pack and the energy storage converter, and the energy storage converter is electrically connected with the battery pack so as to convert electric energy bidirectionally. According to the energy storage system, the cabinet body structure is optimized, and the battery packs, the cooling devices and the energy storage converters in the cabinet bodies are reasonably arranged, so that the space utilization rate in the cabinet bodies can be improved, the occupied space of the cabinet bodies can be reduced, side-by-side arrangement of a plurality of cabinet bodies is facilitated, and a good use effect is achieved.

The invention discloses an immersed cooling liquid and a preparation method thereof, and relates to the technical field of cooling liquids, the immersed cooling liquid comprises the following raw materials by weight: 90-100 parts of base oil, 7-9 parts of an auxiliary agent A, 4.5-5.5 parts of an auxiliary agent B, and 0.5-1.0 part of an antifoaming agent. The auxiliary agent A is obtained by modifying a high-thermal-conductivity insulating filler through a reaction and introducing benzotriazole and an alkane long chain. The auxiliary agent B is a substance which contains hindered phenol, DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) and an alkane long chain and has a hyperbranched macromolecular structure. The auxiliary A and the auxiliary B are added, so that the immersed cooling liquid has excellent thermal conductivity, corrosion inhibition, oxidation resistance and flame retardance, the synthesis process of the auxiliary A and the auxiliary B is environmentally friendly, and the immersed cooling liquid is worthy of being popularized in the technical field of cooling liquid and has a considerable application prospect.

The utility model discloses an air suction type mold for processing a glass element. The air suction type mold comprises a fixed mold, a connecting device, a forming cavity, frit and an upper mold, according to the utility model, the plurality of groups of lower-layer ventilation channels are arranged in the lower die, so that the extraction speed of gas in the forming cavity is increased, and the extracted air is concentrated to the concentration area and is extracted out through the conveying channel, and the structure effectively avoids the situation that the extraction speed of the gas in the forming cavity is reduced when the gas is collected and conveyed; a large amount of gas in the forming cavity is rapidly pumped to the large-volume concentration area to be buffered and conveyed, rapid formation of a vacuum environment in the forming cavity is achieved, hot gas transmission caused by frit is effectively isolated through rapid production of the vacuum environment, then the situation of die oxidation caused by combination of oxygen and high-temperature hot gas is avoided, and the production efficiency is improved. The service life of the mold is prolonged, through the arrangement of the connecting piece, flexible replacement of two connecting modes is achieved, and the connecting flexibility of the vacuum machine and the mold is improved.

The utility model belongs to the technical field of bidirectional speed reducers, and discloses a bidirectional noise reduction speed reducer which comprises a fixed mounting plate, the top of the fixed mounting plate is fixedly connected with a speed reducer shell, the top of the speed reducer shell is connected with a sealing plate, the sealing plate is provided with a lubricating oil leading-in assembly, and the lubricating oil leading-in assembly comprises a fixed shell. Oil guide plates which are symmetrically arranged are fixed in the fixing shell, oil storage cavities are formed in the tops of the oil guide plates, lubricating oil is stored in the oil storage cavities in the fixing shell, the lubricating oil is quantitatively guided in through a rotating column and an oil groove structure, then the lubricating oil is dripped on a gear, a worm and other structures through an oil dripping pipe and an oil dripping head, and the lubricating effect can be achieved. And the driving motor controls the rotating column to rotate, lubricating oil can be guided in regularly, and full use of the lubricating oil is better facilitated.

The utility model relates to a liquid carbon monoxide vacuum storage tank. According to the scheme, a heat insulation material is attached to the inner wall of an inner container, and a liquid inlet / outlet connector is formed in the top and extends to the outside through the top of an outer container. The inner container and the outer container form a vacuum interlayer, and a vacuum isolating valve M1 and a vacuumizing valve N1 are arranged to keep the vacuum degree of the interlayer. The double safety valves are connected with the recovery pipeline through a first safety valve pipeline and a second safety valve pipeline respectively and used for discharging in the overpressure state. In addition, an overpressure automatic release pipeline is particularly arranged, an automatic pressure release valve is arranged to be communicated with a recovery pipeline, and it is ensured that gas is safely released when the inner container is overpressure. In addition, a pressure maintaining pipeline is arranged and is combined with an automatic pressure increasing valve I1 and a self-pressure increasing vaporizer L1 to carry out precise pressure increasing control on the inner container. The inner container and the outer container are both integrated with pressure and temperature monitoring points, the inner container further has a liquid level monitoring function, and all-directional safety monitoring and efficient operation are achieved.

The utility model discloses sound-insulation and heat-insulation hollow glass with a bulletproof effect, which relates to the field of glass and comprises a bulletproof glass layer, a heat-insulation glass layer is fixedly connected to one side of the bulletproof glass layer, and a sound-insulation glass layer is fixedly connected to one side, far away from the bulletproof glass layer, of the heat-insulation glass layer. The bulletproof glass layer comprises an outer glass layer, a bulletproof middle layer and an inner glass layer, the outer glass layer is toughened glass, the bulletproof middle layer is formed by compounding polycarbonate and polyvinyl butyral, and the inner glass layer is a toughened glass layer. According to the bulletproof door, bulletproof protection is provided, meanwhile, external noise and heat transfer can be effectively isolated, and therefore the safety is improved, meanwhile, a more comfortable indoor environment is ensured, heat and sound transfer is effectively reduced, and the heat insulation and sound insulation performance is improved.

This invention discloses an integrated sorting device for infectious medical plastics and metal sharps, belonging to the field of medical waste treatment technology. It includes a main shell, which is a hollow cylindrical structure. Inside the main shell, three sets of sieving mechanisms for sorting medical syringes are arranged from top to bottom. Three mounting arms are fixedly connected to the inner wall of the main shell at the position corresponding to each set of sieving mechanisms, and these three mounting arms are equidistantly distributed radially along the main shell. This invention achieves automated grading and sieving of different types of medical syringes and efficient integrated separation of needle tips and syringe barrels, significantly improving the efficiency and safety of medical waste disposal. Simultaneously, through the nested structure of the hollow main shaft and the built-in secondary shaft, combined with a bevel gear transmission pair driven by a closed-loop stepper motor, the working angle of all scraping blades can be adjusted synchronously at one time, enabling precise and efficient shearing and separation of the needle root.

This invention discloses a method for preparing a flame-retardant epoxy resin containing a recyclable flame retardant and its application. The method for preparing the flame retardant includes: preparing a manganese cobalt oxide flame retardant through the co-precipitation of manganese and cobalt ions followed by calcination. This invention synthesizes a manganese cobalt oxide flame retardant via a co-precipitation method and uses it as a filler in epoxy resin, curing it to obtain a green, halogen-free, environmentally friendly flame-retardant epoxy resin. It does not pollute the environment during pyrolysis or combustion and can effectively catalyze the conversion of harmful gases generated during combustion, which is beneficial to environmental protection and sustainable development. It has excellent flame-retardant properties, greatly reducing the release of heat, smoke, and harmful gases during epoxy resin combustion, significantly enhancing its fire safety. Furthermore, it enables efficient recovery of the flame retardant from the epoxy resin, with a recovery rate of up to 90.0%, achieving high-quality resource utilization.

The utility model discloses a high comfort handlebar cell phone structure, including handle body, upper holder, lower holder, upper link plate, shock absorber and shock absorbing assembly, the handle body is held fixed with detachable mode by upper holder and lower holder, the lower holder sets up on the upper link plate, and the lower holder has two installation orientation on the upper link plate, and each installation orientation makes handle body relative upper link plate to be in different position, can satisfy the comfortable riding demand of the rider of different figure, the junction of lower holder and upper link plate is equipped with shock absorbing assembly, the upper end of shock absorber is fixed below the upper link plate, and the below of shock absorber is rotatably connected with the front wheel of the vehicle body, through setting up shock absorbing assembly, further insulates the transmission of engine vibration to handle body, greatly reduces the discomfort that the rider feels in the riding process because of vibration, improves the stability and comfort of riding.

The utility model belongs to cable connection technical field especially relates to cable head of vacuum welding, wherein one kind vacuum welded cable head, include: cable body, its end portion is from outside to inside in proper order to peel off outer sheath, aluminium sheath and semi -conductive nylon layer, sealing device, its sleeve is established in aluminium sheath end portion, and with vacuum pump intercommunication, protection shell, is sealed with aluminium sheath through solder layer and connects, wherein, through peeling off semi -conductive nylon layer, to make aluminium sheath and cable outer shield between the reserved gap form air heat insulating layer, sealing device seals air heat insulating layer, and vacuum pump negative pressure suction air heat insulating layer to form vacuum layer, through the cooperation of sealing device and vacuum pump, after sealing device seals air heat insulating layer, vacuum pump to its negative pressure suction vacuum, to insulate the heat transfer to cable body inside in the welding process.

The invention discloses a modified polyethylene double-wall corrugated pipe material and a preparation method thereof, and the pipe material comprises the following raw materials by weight: 70-80 parts of high density polyethylene, 10-15 parts of linear low density polyethylene, 0.5-2 parts of a crosslinking modifier, 0.5-1 part of dicumyl peroxide, 0.1-0.5 part of a main antioxidant, 0.1-0.3 part of an auxiliary antioxidant, and 5-10 parts of a flexibilizer. The invention relates to a high-strength high-toughness alloy which comprises the following components in parts by weight: 2-3 parts of lanthanum fluoride (LaF3), 2-3 parts of cerium fluoride (CeF3), 3-5 parts of SMC crystal whiskers, 3-5 parts of basic magnesium sulfate crystal whiskers coated with tannic acid and 6-10 parts of zinc borate crystal whiskers. The rare earth compound lanthanum fluoride, the lanthanum fluoride, the SMC whisker, the basic magnesium sulfate whisker coated by tannic acid and the zinc borate whisker are added, so that the thermal stability and the mechanical property of the material can be greatly improved, and the material is not easy to decompose at a relatively high temperature; and the cerium compound and the zinc borate whisker can catalytically esterify into carbon when the polyethylene is combusted, and a compact and continuous carbon layer is quickly formed on the surface of the polyethylene, so that the flame retardant property of the polyethylene is improved.

The utility model discloses high temperature heat -proof fire door relates to the field of fire door. This high temperature heat -proof fire door includes fire door unit and cooling unit. Fire door unit contains the door body, the heat insulation board of inlaying in the door body, the protection block of fixed in the back of door body and set up at the door handle of door body positive surface. Cooling unit is by setting up in the first serpentine pipe of door body, with the second serpentine pipe of first serpentine pipe intercommunication, install the inlet pipe of first serpentine pipe one end and install the outlet pipe of second serpentine pipe one end and inlay in the protection block, and outlet pipe equidistance sets up multiple water outlet holes, is used for spraying to reduce the temperature of fire door in advance. This high temperature heat -proof fire door passes through setting cooling unit, realizes the circulating flow of cooling water, initiatively reduces the temperature of fire door, further enhances the fire -resistant performance, and the water that outlet pipe sprays still can form a layer of water film, further insulates heat transfer, improves the fire -resistant performance of fire door.

The invention discloses sec-ethyl phosphate as well as a preparation method and application thereof, and belongs to the technical field of synthesis of flame retardants. Tri (2-ethoxyl) isocyanurate, phosphorus oxychloride and an alcohol compound are used as raw materials, the cyan phosphate is prepared through three-step reaction of preparing phosphoryl chloride diester, refining the phosphoryl chloride diester and synthesizing the cyan phosphate, the molecular structure contains a phosphate group and a triazine ring conjugated structure, and a carbon source, a gas source and an acid source are integrated. The thermal decomposition temperature of the sec phosphate is greater than or equal to 320 DEG C, the UL94V-0 level flame retardant standard can be reached by adding 12%-15% of sec phosphate into a high polymer material, and the sec phosphate has the characteristics of high flame retardant efficiency, good compatibility, strong migration resistance, excellent thermal stability, environmental protection and low toxicity; the synthetic preparation method is stable in process, easy in condition control and high in product purity, can be widely applied to flame-retardant modification of high polymer materials such as polyvinyl chloride, polyurethane and epoxy resin, and has important industrial application value.

The utility model provides a refrigerator which comprises a semiconductor module and a refrigerator body, the refrigerator body is divided into a cold box and a hot box through a foaming layer, a cold cavity is formed in the cold box, a hot cavity is formed in the hot box, the semiconductor module comprises a cold end and a hot end, a penetrating cavity is formed in the foaming layer and communicated with the cold cavity and the hot cavity, and the semiconductor module is arranged in the penetrating cavity. The cold end faces the cold cavity and is used for reducing the temperature of the cold cavity, and the hot end faces the hot cavity and is used for increasing the temperature of the hot cavity. The box body is divided into the cold box and the hot box by the foaming layer, heat transfer between the cold box and the hot box is effectively isolated, the structure is simple, and cost is low. The through cavity is formed in the foaming layer, the semiconductor module is arranged in the through cavity, and when the semiconductor module is powered on, the cold end absorbs heat in the cold cavity so as to reduce the temperature in the cold cavity, and the hot end releases the heat into the hot cavity so as to increase the temperature in the hot cavity. Heat generated after refrigeration of the semiconductor module is fully utilized, heat efficiency is improved, and resources and space are saved.

The invention relates to the technical field of coatings, and particularly discloses a multifunctional fireproof anticorrosive coating and a production process thereof. The multifunctional fireproof anticorrosive paint is prepared from the following raw materials in parts by weight: 10 to 15 parts of silicone acrylic emulsion, 6 to 8 parts of phosphorus flame retardant, 12 to 15 parts of acrylic resin, 10 to 20 parts of modified aerogel, 2 to 4 parts of curing agent, 4 to 8 parts of metal powder, 5 to 8 parts of bentonite and 25 to 28 parts of solvent, and the modified aerogel is aerogel prepared by modifying methacrylic acid-2-hydroxyethyl phosphate; the preparation method comprises the following steps: respectively adding the phosphorus flame retardant, the bentonite, the acrylic resin and the metal powder into the silicone acrylic emulsion, adding one part of the solvent, stirring, mixing, grinding, adding the modified aerogel and the curing agent, continuously stirring, adding the other part of the solvent, uniformly stirring and mixing, filtering by using a screen, and packaging. The composition provided by the invention has the advantages of good fireproof performance and corrosion resistance.