106 results about "Flame spread" patented technology

The invention relates to the technical field of material compositing, and discloses a polyurethane composite insulation board with a good flame retardant effect, which comprises the steps of fireproof surface layer pretreatment, flame retardant core layer preparation, reinforced substrate layer treatment, lamination molding and post-treatment, by designing a unique three-layer composite structure and adopting a multi-component synergistic flame retardant system, the flame retardant effect is good, and the flame retardant effect is good. The heat insulation board can form a multi-stage flame-retardant barrier when encountering high temperature and open fire, the flame spreading speed is slowed down, the overall fireproof safety of the material is improved, and the durability and stability of the flame-retardant effect are enhanced through the synergistic effect of all the functional layers; through surface modification treatment on the functional reinforcing phase, the interface bonding force between the functional reinforcing phase and a polyurethane matrix is improved, so that the flame retardant and the reinforcing phase are uniformly dispersed in the matrix, and the performance defect caused by agglomeration is avoided, thereby enhancing the mechanical strength and structural integrity of the material while keeping excellent thermal insulation performance.

The invention relates to a cable tunnel bridge fire prediction method and device, electronic equipment and a storage medium. The cable tunnel bridge fire hazard prediction method comprises the following steps: establishing a cable tunnel bridge fire hazard numerical simulation model, establishing a cable tunnel bridge fire hazard simulation model based on FDS software, obtaining key parameters such as heat release rate, temperature distribution and flame spread boundary under different working conditions, and constructing a multi-time sequence sample data set; performing state discretization on continuous variables such as temperature and a spreading range, and estimating a node prior probability in combination with a statistical frequency; constructing a dynamic Bayesian network topological structure according to a causal relationship among a heat source, temperature and spread, and setting a cross-time slice node dependence path to realize time sequence modeling; inputting a training sample and performing parameter learning to generate a conditional probability table; in the prediction stage, multi-step reasoning is achieved through forward propagation, flame spreading range probability distribution and interval estimation of multiple time steps in the future are obtained, and the specific position where the flame arrives is predicted.

This invention discloses a flame-retardant silicone rubber for cables and its preparation method, belonging to the field of cable material technology. By copolymerizing methyl vinyl silicone rubber with flame-retardant modified spiky hollow microspheres, the flame-retardant modified spiky hollow microspheres can be fixed in the silicone rubber network. The flame-retardant modified spiky hollow microspheres themselves are inorganic high-temperature resistant ceramic materials. The hollow structure can form a physical heat insulation and oxygen barrier layer, blocking heat transfer and oxygen penetration, and delaying the thermal decomposition of the matrix. The grafted phosphorus-based flame-retardant groups and the nitrogen element of 4-aminobenzoic acid form a phosphorus-nitrogen synergistic chemical flame retardant. During combustion, a dense carbon layer is quickly generated, which inhibits flame spread, reduces heat release rate, and has excellent smoke suppression and toxicity reduction effects, meeting the stringent requirements for cable fire safety.

The utility model belongs to the technical field of seat, disclose a kind of multilayer fire -retardant noise absorption seat backplate, including backplate body, the backplate body is made of five layers structure composite, the backplate body includes abrasion -resistant fire -retardant surface layer, perforated sound-absorbing layer, soundproof layer, damping layer and support backplate that are sequentially arranged, each layer is integrally formed by hot pressing, the abrasion -resistant fire -retardant surface layer is located outermost layer.The utility model can effectively block external fire source and delay flame spread by abrasion -resistant fire -retardant surface layer, perforated sound-absorbing layer and soundproof layer can efficiently absorb medium-high frequency noise by micro-perforation resonance and porous sound-absorbing, and damping layer further inhibits structural vibration energy transmission, solve the problem that traditional seat backplate is insufficient in fire -retardant and single in noise absorption means.

The utility model discloses a wear-resistant flame-retardant curtain which comprises a curtain body and a mounting frame, and the curtain body comprises an inner flame-retardant fabric layer and an outer gold stamping layer which are attached to each other; the curtain body is fixedly connected to the mounting frame through the mounting rings; the mounting frame is composed of a first mounting groove and a second mounting groove; an inserting groove is formed in one side of the second mounting groove, and the upper end of the first mounting groove is inserted into the inserting groove to be connected with the second mounting groove. Preferably, the first mounting groove is provided with a first limiting strip; and the second mounting plate is provided with a second limiting strip. The flame-retardant curtain has excellent flame retardance and wear resistance, can be used for covering an initial fire source, blocking flame spreading and preventing flames from making contact with inflammables, and therefore the fireproof and flame-retardant performance of the curtain fabric can be effectively improved; the installation frame can not only keep the curtain not to fall off in the normal use process, but also can grasp the curtain and forcibly pull the curtain forwards to enable the curtain to fall off when an emergency fire occurs, so that the curtain is used for extinguishing the fire.

The utility model discloses a composite stainless steel plate frame which comprises a support assembly, a fixing assembly is fixedly connected to one side wall of the support assembly, the support assembly comprises an outer frame support assembly and a partition assembly, and a first middle layer plate and a pair of first flame blocking layers are arranged in the partition assembly. A flame-retardant layer, a second middle layer plate and a second flame blocking layer are arranged in the outer frame support assembly, the outer frame support assembly comprises side plates, a rear plate and a top plate, and a plurality of sets of first trapezoidal grooves are formed in the side walls of the pair of first flame blocking layers. The fireworks and crackers are shielded through the support assembly, and when explosion occurs, flames generated by the fireworks firstly reach the flame blocking layer of the support assembly, so that the flames are prevented from splashing all around and spreading; when the explosion intensity is high, fire extinguishing fibers fall into the middle layer plate to block flames; and finally, the fire is intercepted by the outermost flame-retardant layer, so that the external environment is prevented from being damaged by explosion of the fireworks.

The present invention provides a concrete-based energy storage box, provided with a tray-shaped housing and a cover plate. The cover plate covers the tray-shaped housing to form a sealed energy storage cavity, and the tray-shaped housing and the cover plate both are made of a concrete composite material. The energy storage box is formed into an independent and enclosed space by means of the tray-shaped housing and the cover plate that are made of the concrete composite material, such that a high temperature caused by battery thermal runaway within a single energy storage box can be effectively confined within the energy storage box. In addition, since the energy storage box made of the concrete composite material has high compressive strength and a long fire resistance duration, fire extinguishing agent supply branch pipes can be flexibly configured inside the energy storage box, such that in the event of a battery fire caused by severe thermal runaway, sufficient time can be provided for the fire extinguishing agent supply branch pipes arranged in the energy storage box to deliver a liquid extinguishing agent, thereby promptly and effectively extinguishing the flames inside the energy storage box, and preventing the flames from spreading and affecting other energy storage boxes in an energy storage device.

The invention discloses a laser cutting device for hollow oxford fabric production, and relates to the technical field of laser machining, the laser cutting device comprises a machining base, side sliding grooves are formed in the inner walls of the two sides of the machining base, driving guide rails are fixedly connected to the inner walls of the side sliding grooves, and driving sliding blocks are slidably connected to the interiors of the two driving guide rails; a transverse sliding rail is fixedly connected between the two driving sliding blocks, a cutting mechanism is slidably connected to the surface of the transverse sliding rail, it is ensured that the surface of the coating roller is always covered with a layer of uniform liquid film with the consistent thickness by automatically and continuously supplementing a flame retardant, and therefore stable and controllable quantitative coating can be achieved when the coating roller makes contact with oxford cloth; the problem that a coating is easily dried up in traditional intermittent coating is solved, flame spreading and smoke generation are effectively restrained, the risks of yellow edges and burrs are remarkably reduced, the manual maintenance process is simplified, and the stability and consistency of the coating effect during long-time continuous production are guaranteed.

The embodiment of the utility model provides railway vehicle-mounted automatic fire extinguishing equipment, and relates to the field of fire extinguishing equipment. A partition plate is mounted in an inner cavity of the equipment housing, and the partition plate divides the inner cavity of the equipment housing into a first chamber and a second chamber; a mounting frame, a fixing rod, a plurality of spraying assemblies, a plurality of first gears and a driving assembly are mounted in an inner cavity of the second cavity, the mounting frame is mounted on the lower surface of the partition plate through the fixing rod, and the spraying assemblies are mounted on the mounting frame; the multiple first gears are installed on the multiple spraying assemblies correspondingly, and the driving assembly is installed in the second cavity. In actual use, fire can be extinguished quickly, combustible materials near a fire source can be cooled preferentially, flame spreading is effectively prevented, meanwhile, the covering range of fire extinguishing materials can be gradually reduced, direct covering of the combustible materials is avoided, and flame deviation is prevented.

The utility model relates to the field of kitchen utensils, and particularly discloses a burner and a stove. The combustor comprises an outer ring fire cover; the outer ring fire cover sequentially comprises an upper ring, a middle ring and a lower ring; a first fire outlet circular seam is formed between the upper ring and the middle ring, a second fire outlet circular seam is formed between the middle ring and the lower ring, and a groove extending in the radial direction of the outer ring fire cover is formed in the surface, opposite to the middle ring, of the upper ring. A groove extending in the radial direction of an outer ring fire cover is formed in the upper side wall of a first fire outlet circular seam of the combustor, namely the surface, opposite to a middle ring, of an upper ring, when airflow flows out of the bottom of the first fire outlet circular seam, part of airflow flows out of the groove, and under the guiding effect of the groove, the airflow obtains the stable speed and direction; and the unstable state of airflow of the annular air outlet is reduced, the large-flow and low-resistance effects of the annular seam under the flow can be guaranteed, and meanwhile stable airflow can be generated. And flames spread stably in the combustion process.

This invention relates to a new energy vehicle cable material and its preparation method, belonging to the field of automotive cable technology. The invention involves preparing a modifier, then blending the modifier with polyethylene, melt-extruding it, and subsequently subjecting it to radiation crosslinking to obtain a new energy vehicle cable outer sheath material. During combustion, the outer sheath of this invention achieves halogen-free flame retardancy through phosphorus-silicon synergy, delaying the spread of flames when the new energy vehicle cable is exposed to fire. Furthermore, the phosphate ester structure can coordinate with copper ions on the shielding layer surface, improving the bonding ability between the shielding layer and the polyethylene sheath, reducing the penetration of moisture and oxygen, and inhibiting chemical corrosion, thereby ensuring the long-term stability of the shielding performance of the new energy cable. In addition, the multiple double bonds and siloxanes in the modifier enhance the mechanical and heat resistance properties of the cable outer sheath by increasing the crosslinking density and substrate compatibility.

An uninsulated flexible duct includes a core made of a polymer material and including a helical wire as a part thereof, the polymer material core having inner and outer surfaces and including a first adhesive. The duct also includes a fire resistant barrier material surrounding the outer surface of the polymer material core, the fire resistant barrier material including a seam running longitudinally along the length of the uninsulated flexible duct, the longitudinal seam having an overlap zone that contains at least one second adhesive to maintain an integrity of the longitudinal seam. The uninsulated flexible duct is one that is free of any vapor barrier and has a flame spread index and smoke developed index of zero (0) as defined in the UL 181 standard. Component parts of the duct are controlled in terms of composition, amount, and / or configuration to achieve the Class 0 rating.

The invention belongs to the technical field of adhesives for PCBs (printed circuit boards), and particularly relates to a phosphorus-silicon synergistic flame-retardant UV-moisture dual-curing three-proofing adhesive. The phosphorus-silicon synergistic flame-retardant UV-moisture dual-curing three-proofing adhesive provided by the invention is mainly prepared from a poly-UV-silane moisture dual-curing polyurethane acrylate prepolymer, a photoinitiator, an active diluting monomer, a wetting leveling agent, a defoaming agent and fluorescent powder. The phosphorus-silicon synergistic flame-retardant UV-moisture dual-curing three-proofing glue prepared by the invention has the characteristics of excellent flame retardance and flame spread prevention on the basis of moisture-proof, salt mist-proof and mildew-proof functions. When a fire source exists outside, the material can effectively inhibit self-combustion, or can be automatically extinguished after the fire source is removed, can provide higher-grade safety guarantee for electronic equipment, and can be widely applied to the fields of electronic components, household appliances, automotive electronics, charging piles and the like.

The invention relates to the technical field of curtain manufacturing, in particular to a flame-retardant environment-friendly curtain fabric laminating composite material and a preparation method thereof.The flame-retardant environment-friendly curtain fabric laminating composite material is prepared from, by weight, 22-26 parts of filler, 50-60 parts of waterborne polyurethane emulsion, 1-2 parts of dispersing agent and 0.5-1.5 parts of thickening agent. According to the invention, the powder and the additive are coated by the calcium alginate gel, sodium sulfate and borax in the powder can release crystal water when being heated, and a flame-retardant barrier is formed by absorbing heat, cooling and diluting combustible gas, and in addition, the reed straw in the additive is treated to form a biomass charcoal material, so that the flame-retardant effect of the biomass charcoal material is improved. Glucose is oxidized by nitric acid and then reacts with melamine to form a compact expanded carbon layer, good heat insulation and oxygen isolation effects are achieved, molten drops are inhibited, flame spreading is prevented, finally, the compactness and stability of the carbon layer are further enhanced through the auxiliaries, and the flame retardant property of the material is improved through the synergistic effect.

The invention discloses a single-suspension-frame superconducting aircraft fairing and a preparation method thereof in the technical field of superconducting aircrafts. The preparation method comprises the steps of mold preparation, gradient laying of an outer skin, preparation of a foam-honeycomb double-core structure, installation of an embedded part, regional compaction of an inner skin and the like. The function integration of high temperature resistance, flame retardance and high strength is realized through the design of the three-layer gradient outer skin; a foam supporting framework and honeycomb core composite structure is adopted to ensure light weight and stability. The gradient composite material design and the foam-honeycomb double-core structure are adopted, the weight is greatly reduced while the structural strength is guaranteed, the lightweight requirement of the superconductive aircraft is met, the ablation resistance and flame retardance in the high-temperature environment are remarkably improved through the silicon carbide fiber reinforced ablation-resistant layer and the flame-retardant transition layer of the outer skin, and the service life of the superconductive aircraft is prolonged. The problem that the mechanical property of steel is suddenly reduced at high temperature is avoided, meanwhile, flame spreading is blocked, and the safety of internal equipment is protected.

The commercial Chinese food gas cooking stove comprises a cooking bench, a sliding opening is formed in the periphery of a stove frame on the upper surface of the cooking bench, the lower surface of the sliding opening is flush with and communicated with a containing cylinder, the containing cylinder is fixedly installed in the cooking bench, and an enclosure mechanism is installed in the containing cylinder in a sliding mode. By means of the enclosure mechanism, when a cook cooks dishes, flames can be prevented from spreading out between the pot frame and the pot bottom, then the safety of kitchen equipment and personnel can be guaranteed, meanwhile, the burning heat feeling and the dazzling feeling caused by the flames can be eliminated, the cook more focuses on stir-frying, seasoning and other operations in the cooking process, and the cooking quality of dishes is improved.

The application discloses a fire control device for jet fire, which comprises a shell, a first foam component and a spraying component. The shell is in the form of a three-side-opened box structure, and the space in the shell is set as a fire control chamber. The sidewall of the fire control chamber is provided with a fire inlet, and the left and right sidewalls of the fire control chamber along the fire inlet are respectively provided with air window openings. The first foam metal plate is arranged in the fire control chamber, and the plate surface of the first foam metal plate faces the fire inlet. The spraying component comprises a spray head and a fire extinguishing agent pipeline, the spray head is in communication with the fire extinguishing agent pipeline, the spray head is located on the side of the first foam metal plate away from the fire inlet, and the spray head is arranged on the top of the fire control chamber. Thus, under the combined action of the barrier and dredging effects of the foam metal plate and the water-based fire extinguishing agent, the fire control device can control the spread of the flame and partially extinguish the flame penetrating through the metal plate, thereby effectively realizing the fire control effect and providing sufficient time for the subsequent operation of safely extinguishing the jet flame.

This utility model discloses an adaptive pressure relief protection device for preventing thermal runaway of lithium batteries, comprising a housing and a cover. A pressure relief turbine flame arrester and a filter are installed inside the pressure relief port. The pressure relief turbine flame arrester includes an outlet cover, a turbine interception cylinder, and an inlet cylinder. The bottom of the interception cylinder of the turbine interception cylinder is a bottom plate A, with an inlet hole A at its center. The bottom of the inlet cylinder has a bottom plate B. A sleeve and a telescopic rod located within the sleeve are fixedly installed through the center of the outlet cover. A movable valve is fixed to the end of the telescopic rod. A spring is fixed to the center of the inner side of the bottom plate B, with the end of the spring passing through the inlet hole A and connected to the movable valve. This utility model intercepts and deposits detonation particles at the bottom of the interception cylinder for centralized processing. Gas is discharged through various outlet holes. The pressure relief turbine flame arrester and the explosion wave energy absorption component jointly suppress flame spread and alleviate explosion pressure, ensuring cabin safety. It is suitable for emergency response scenarios involving aviation lithium batteries.

Environmentally-clean wildfire inhibitor liquid biochemical solutions produced from an aqueous mixture of alkali metal salt derived from a non-polymerized saturated carboxylic acid such as oxalic acid, and dissolved in water along with a dispersing and coalescing agent, realized as an ester of a non-polymerized saturated carboxylic acid, and dissolved in the water to provide a liquid fire inhibitor solution that can be sprayed on combustible surfaces to form thin alkali metal salt crystalline coatings on the combustible surfaces when and as water molecules in the liquid fire inhibitor evaporate to the environment during drying operations, to inhibit fire ignition, flame spread and smoke development.

The utility model discloses a kind of explosion-proof fan, including the casing of three-layer composite explosion-proof resin material and wind wheel, wherein outer layer carbon nanotube PEEK composite material effectively leads out static electricity, middle aluminium hydroxide flame-retardant layer prevents flame spread, inner layer ultra-high molecular weight polyethylene reduces friction spark risk.Electrostatic belt can effectively eliminate static electricity accumulation in transmission process, avoid static spark, improve explosion-proof safety.Fan is equipped with rotary electrostatic brush and ground copper wire to eliminate static electricity, and fire barrier is configured at air inlet to prevent flame propagation.Wind wheel blade is provided with tungsten-containing wear-resistant coating and zircon ceramic wear-resistant strip to avoid friction spark.Explosion-proof motor is built-in temperature sensor and vibration sensor, and stator winding adopts arc-resistant enameled wire.The utility model solves the problem of heavy weight and single protection of traditional fan through multiple explosion-proof design, with the characteristics of lightweight, superior explosion-proof performance, stable and reliable operation, especially suitable for flammable and explosive places such as petroleum and chemical industry.

The invention relates to the technical field of paint preparation, in particular to fire-resistant and wear-resistant epoxy resin paint. The coating is prepared from the following components in parts by weight: 1835 to 2400 parts of epoxy resin, 1300 to 2600 parts of silicon carbide, 1600 to 2200 parts of dinitrophenol, 2300 to 2800 parts of nano aluminum oxide, 2100 to 3250 parts of titanium dioxide, 1100 to 2000 parts of polyethylene glycol, 1350 to 2000 parts of 2-ethylhexyl acrylate, 1200 to 2100 parts of vermiculite, 1200 to 2600 parts of sodium polyacrylate dispersing agent, 1700 to 2600 parts of stearic acid and 1500 to 2000 parts of calcium naphthenate. The fireproof coating has the beneficial effects that 1, the fireproof coating has excellent fireproof performance, the integrity of the coating can be kept for a long time in a high-temperature environment, flame spreading and heat transfer are effectively prevented, and a base material is protected from high-temperature damage; 2, the coating has excellent wear resistance, can resist mechanical friction, impact and the like, and prolongs the service life of protected equipment or facilities; and 3, all the components are mutually matched and cooperated, the comprehensive performance is excellent, the fire resistance and wear resistance are outstanding, the good adhesive force, weather resistance, chemical corrosion resistance and the like are achieved, and the coating can be widely applied to protection requirements of various industrial fields.

A Class-A fire-protected wood product include: a wood product having exterior wood surfaces and being selected from the group consisting of finger-jointed wood products, dimensioned lumber products, cross-laminated timber (CLT) products, and engineered wood products (EWPs); and thin potassium salt crystalline coatings formed on the exterior wood surfaces of said wood product during a surface treatment process involving the coating of said exterior surfaces with an environmentally-clean fire inhibiting liquid chemical composition, so as to produce a Class-A fire-protected wood product having Class-A fire-protected wood surfaces, when water molecules in said environmentally-clean fire inhibiting liquid chemical composition evaporate to the environment during drying and formation of said thin potassium salt crystalline coatings. The thin potassium salt crystalline coatings protect the treated exterior surfaces against fire ignition and flame spread in the presence of fire, by interrupting the combustion phase of the fire by one or more pathways, and inhibiting fire ignition and flame spread.

The invention belongs to the technical field of high polymer materials, and particularly relates to a flame-retardant polypropylene composite material as well as a preparation method and application thereof. The flame-retardant polypropylene composite material is prepared from the following raw materials: polypropylene and a flame retardant, the flame retardant is prepared from the following raw materials: 1, 2, 6-trihydroxy naphthalene, poulochic acid and coral coral bacterial acid. The polypropylene composite material has a two-dimensional lamellar continuous multi-benzene-ring structure, and can form a compact physical isolation layer in a polypropylene combustion process, so that oxygen and heat in a whole combustion system are isolated from combustibles, and the thermal decomposition and combustion rate of polypropylene is delayed. Meanwhile, a large number of carbonyl structures in the flame retardant can improve the crosslinking degree and the thermal stability of the flame retardant to a certain extent, the charring speed and the charring rate of the polypropylene material are indirectly improved, the flame spreading speed is delayed, and the polypropylene composite material has good flame retardance and is environmentally friendly.

The invention discloses an environment-friendly waterproof low-smoke halogen-free flame-retardant cable, and relates to the technical field of flame-retardant cables, the outer side of a center conductor is coated with an internal insulating layer, the outer side of the internal insulating layer is jointly coated with a silica gel protective layer, the outer side of the silica gel protective layer is sequentially coated with an internal shielding layer and a rubber protective outer layer, and the outer side of the rubber protective outer layer is coated with a rubber protective outer layer. According to the flame-retardant cable, gas generated by the sodium bicarbonate tablet is matched with blasting impact generated by the heat-resistant elastic silicon capsule, so that the process that flame spreads along the outer side of the cable can be quickly blocked, and then the fireproof performance of the flame-retardant cable is effectively improved; meanwhile, when the flame-retardant cable is located in the flame for a long time, the loose porous structure generated by the porous fireproof expansion adhesive tape can be utilized to guide and restrain carbon dioxide and water vapor generated by the sodium bicarbonate tablet, so that a flame-retardant fireproof isolation belt is formed on the outer side of the flame-retardant cable, and the fireproof performance of the flame-retardant cable is further improved.

The invention discloses a preparation process of a flame-impact-resistant explosion-proof CCS and silicon-based composite board. The flame-impact-resistant explosion-proof CCS and silicon-based composite board comprises a silicon-based composite board, an injection molding isolation board and a mica board, a silicon-based composite board pressure relief window is formed in the silicon-based composite board; the injection molding isolation plate is provided with an isolation plate pressure relief window; a preset weak area is formed on the mica plate, and fracture guide lines are formed on the preset weak area; the thermal runaway safety bottleneck of an existing battery module is solved, the silicon-based composite board can bear flame impact at the temperature of 1000 DEG C or above without burning through, and the physical path of flame spreading in the module is blocked; a preset weak area of the mica plate and fracture guide lines enable decompression to be changed into directional controllable release from disordered spraying, the structure is excellent in insulation performance at extreme high temperature, the insulation resistance is not lower than 500 M omega after the high temperature, the structure can bear a DC5000V voltage-withstanding test, and the risk of secondary short circuit caused by material carbonization is completely eradicated; fireproofing, controllable pressure relief and insulation are achieved, fault response time is provided for a battery management system, and the safety level and reliability are improved.

This invention relates to the field of power cable technology and proposes a high-efficiency flame-retardant fire-resistant cross-linked polyethylene insulated cable, comprising multiple cable cores, filler, and insulation layer. The filler is placed between the multiple cable cores, and the insulation layer is sleeved on the outside of the cable cores and filler. It also includes reinforcing ribs, clamping grooves, a flame-retardant bolt mechanism, and a clamping mechanism. The insulation layer has clamping grooves where the insulation layer and filler are cut off, and the cable cores and reinforcing ribs remain connected at the clamping grooves. The flame-retardant bolt mechanism includes an insert bolt body disposed between the multiple cable cores and filled with an expanding fire-retardant material. The flame-retardant bolt mechanism and the clamping mechanism are detachably connected. The clamping mechanism is used to fix the flame-retardant bolt mechanism and simultaneously wrap and protect the cable cores at the clamping grooves. This technical solution addresses the problem in the prior art of difficulty in blocking the spread of flames after combustion inside the cable.

The utility model discloses a kind of automobile flame-retardant seat cushions, it includes pad body surface layer, the pad body surface layer upper side is connected with backrest, the backrest upper side is connected with headrest, the backrest both sides are symmetrically connected with side pad, the side pad one side is connected with first telescopic belt, the side pad one side is connected with second telescopic belt. Through the above structure, pad body surface layer adopts fireproof fabric, its inside is provided with glass fibre layer, can constitute double flame-retardant barrier, can effectively block flame spread and heat transfer, substantially reduce the risk of seat combustion when vehicle fire, by magic tape wool surface, the cooperation of magic tape prickle surface, collocation antiskid pad, make seat cushion installation firm and dismounting convenient, seat cushion inside is provided with honeycomb layer, can provide excellent breathability and buffering, headrest is connected with neck pillow between backrest, pad body surface layer upper side is provided with backrest, side pad and other ergonomic support, can effectively alleviate fatigue of long time driving, improve ride comfort.

The invention belongs to the field of ring main units, and particularly relates to a non-contact type multi-parameter sensing network and a multi-mode sensing method of the non-contact type multi-parameter sensing network at an elbow-shaped connector. According to the invention, functions of temperature, partial discharge, cavity humidity, explosion characteristic gas, smoke detection and flame detection are integrated, and through non-contact cooperative detection of six characteristic parameters of heat, humidity, electricity, light, gas and flame, comprehensive capture of a multi-physical field coupling effect in a joint insulation degradation process is realized. Compared with a traditional single sensor (for example, only temperature or partial discharge is monitored), composite fault features such as temperature anomaly, humidity permeation, arc discharge, gas precipitation, smoke generation and flame spreading can be synchronously recognized, monitoring blind areas caused by misjudgment of a single parameter are avoided, and the accuracy of fault early warning is remarkably improved.

This utility model relates to the technical field of color steel sandwich panels, specifically a fireproof color steel sandwich panel. It includes a main body comprising an upper color steel plate, a lower color steel plate, a middle core material, U-shaped side plates, L-shaped side plates, and a fireproof core frame. The upper color steel plate has undulating, corrugated stripes, including dark and light stripes. The dark stripes are located in the center of the upper color steel plate, and the light stripes are located on either side of the dark stripes. This utility model has a reasonable and compact structure, is easy to use, and allows for interlocking through the side plates at both ends. The stripes improve the bonding strength and load-bearing capacity between the upper color steel plate and the middle core material. The fireproof core frame provides fireproof separation, blocking the path of flame spread and slowing down heat transfer. It also improves the overall structural strength of the color steel sandwich panel, offering advantages such as safety, reliability, attractive appearance, easy installation, and low manufacturing and maintenance costs.

The application discloses a kind of evaluation device and method for crown fire training, wherein, simulation tree includes hollow trunk and with several branches, hollow trunk is set up several fire holes;Gas ignition system includes gas ignition pipeline set in trunk, gas supply unit and ignition gun;Gas ignition pipeline is set up with several gas outlets, gas is sequentially discharged through gas outlet, fire hole, and ignition gun is used to ignite gas to form trunk fire;Atomized fuel system includes several oil nozzles set on each branch and fuel supply unit;Water collecting cofferdam is set around simulation tree, and liquid level sensor is arranged in it;Control system is used to control the start-stop of gas ignition system and atomized fuel system, and at least based on water level information sent by liquid level sensor, training result score is generated through scoring model.The application can truly reproduce the three-dimensional flame spread effect of trunk and branch, and realize the quantitative evaluation of fire extinguishing effect through scoring model.