109results about How to "Curb spread" patented technology

The invention discloses an industrial firewall isolation method of a DCS (Distributed Control System). The objective of the invention is to solve the problem that existing industrial network security protection has defects for a DCS system. According to the method, firstly, DCS architecture analysis and risk assessment are carried out, and protection key points and data flow directions are accurately determined; then, a firewall strategy fitting the characteristics of each area (such as a core control unit, an operation station and an external network interface) is customized, and mechanisms such as multiple data encryption are covered; and then firewall deployment and configuration optimization are carried out to ensure protection continuity and rule timeliness. And abnormal conditions are timely handled through a real-time monitoring and dynamic adjustment mechanism, and system recovery under a security event is guaranteed through an emergency response and backup recovery mechanism. And a regular safety drill and evaluation mechanism is arranged to continuously strengthen the protection capability. According to the method, the network security level of the DCS is comprehensively improved, stable and safe operation of industrial production is guaranteed, and the method has remarkable practical value.

The invention relates to the technical field of health management, and provides a health management system and method.According to the health management system, in the prevention and control of infectious diseases, real-time data drives model and strategy updating, for example, high-risk area disinfection and personnel protection are rapidly enhanced and propagation is restrained when an epidemic situation suddenly occurs; with ease of an epidemic situation and precise reduction of prevention and control intensity, through continuous data monitoring and analysis, the spreading change trend of infectious diseases in a hospital can be caught sensitively, prevention and control measures can be enhanced rapidly, high-frequency disinfection is achieved, personnel protection is upgraded, and resources are allocated emergently in the rapid spreading stage of the early stage of the epidemic situation, so that epidemic situation spreading is effectively restrained; and as the epidemic situation enters a stable or slowed-down stage, management and control can be accurately and moderately relaxed, resources are reasonably allocated, excessive investment is avoided, the dynamic adjustment mechanism always ensures that the management strategy is closely matched with the actual epidemic situation, and the flexibility and accuracy of a hospital for coping with infectious diseases are greatly improved.

The invention relates to the technical field of fire extinguishing materials, and discloses an active fire extinguishing microcapsule, a preparation method and application thereof, an ultraviolet curing resin plate and a preparation method thereof. The microcapsule has a core-shell structure, a core material is perfluoro (2-methyl-3-pentanone) (PFMP), and the microcapsule is used as an efficient fire extinguishing agent and is suitable for inhibiting the heat rise rate of an ultraviolet curing polymer in thermal runaway and fire scenes; and the shell layer is a polymer wall material formed by gelatin, has a certain thickness and can be broken at a preset temperature. Through simple condensation, PFMP is used as a core material for microencapsulation, and the microcapsule with specific particle size distribution is prepared, so that the microcapsule can quickly release a fire extinguishing agent under a high-temperature condition, and flames are effectively inhibited.

The invention relates to the field of forestry pest prevention and control, and discloses a juglans sigillata forest intelligent pest prevention and control system and method.The juglans sigillata forest intelligent pest prevention and control system comprises a data acquisition module used for collecting basic information of a juglans sigillata forest, and the basic information comprises meteorological environment parameters, soil physical and chemical properties and in-forest visual image data; the identification and analysis module is used for deeply analyzing data characteristics of the basic information, discriminating types and severity of diseases and pests, predicting potential occurrence risks of the diseases and pests and forming an evaluation result; and the early warning response module is used for presetting a risk level threshold value and rule logic and generating an early warning signal of a corresponding level according to an evaluation result. A data acquisition module integrating multiple types of monitoring units and communication units is constructed, so that the juglans sigillata forest can be sensed in all directions, the limitation of manual inspection is eliminated, and the problems of inaccurate monitoring and difficulty in data backtracking are solved; and the identification analysis module comprises sample management, model training and data analysis and prediction.

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention relates to the technical field of cables, in particular to a 220kV crosslinked polyethylene ultrahigh-voltage cable and a preparation method thereof. The 220kV crosslinked polyethylene ultrahigh-voltage cable comprises a conductor, an inner semi-conductive shielding layer, a modified crosslinked polyethylene insulating layer, an outer semi-conductive shielding layer, a fireproof enhancement layer and a sheath, a crosslinked polyethylene insulating layer in a traditional 220kV crosslinked polyethylene ultrahigh-voltage cable is modified, and a fireproof reinforcing layer is introduced on the basis of the traditional 220kV crosslinked polyethylene ultrahigh-voltage cable; in the aspect of mechanical performance, the strength, the flexibility and the wear resistance are improved, frequent actions and complex environments of fire-fighting robots and movable fire-fighting equipment are adapted, in the aspect of heat stability, the heat resistance is enhanced, and normal work of emergency rescue equipment at high temperature is guaranteed; the sintered material forms a heat insulation barrier in a fire disaster to protect the emergency rescue lighting and communication equipment cable from being damaged by high temperature, and the flame retardant inhibits flame spreading and combustion to prevent the fire disaster from expanding through the cable.

The invention discloses a lithium ion battery compound fire extinguishing agent and a preparation method and application thereof, and belongs to the technical field of lithium ion battery fire extinguishing agents. The fire extinguishing agent comprises the following raw materials in parts by weight: 10-50 parts of perfluorohexanone, 20-80 parts of hexafluoropropylene tripolymer and 1-3 parts of preservative. The compound fire extinguishing agent has the beneficial effects of efficient fire extinguishing capacity, excellent cooling efficiency, good corrosion resistance, stability, wide applicability and the like, in the fire extinguishing process, the fluorocarbon organic solvent can rapidly evaporate and absorb a large amount of heat, the temperature of a fire source is remarkably reduced, and therefore fire spreading is further inhibited. And the cooling efficiency can be accurately controlled by regulating and controlling the ratio of different solvents, so that the fire extinguishing requirements of different occasions are met, and powerful support is provided for development and application of the fire extinguishing technology.

The invention relates to the technical field of rubber, and discloses low-temperature-resistant rare earth butadiene rubber and a preparation method thereof. Phosphorus-containing quaternary ammonium salt modified polyurethane, polyethoxylene ether modified phenolic resin, rare earth butadiene rubber and sulfur are added into an internal mixer to be mixed and then vulcanized, and the low-temperature-resistant rare earth butadiene rubber is obtained. In the phosphorus-containing quaternary ammonium salt modified polyurethane, silicon-oxygen bonds enable the rubber to maintain stability at low temperature, so that the low-temperature-resistant effect of the rubber is improved; polyurethane and a rubber molecular chain form an interpenetrating polymer network, so that the mechanical property of the rubber is improved; due to the soft segment chain of polyurethane, the rubber has better toughness at low temperature, and the low temperature resistance of the rubber is improved; an ether bond in polyoxyethylene ether has flexibility and stability, so that the rubber is not easy to crystallize or cure at low temperature; phosphorus, silicon and sulfur elements are used together to generate a synergistic flame-retardant effect, so that the flame retardance of the rubber is improved; the phenolic resin plays a reinforcing role in the rubber, so that the mechanical property of the rubber is improved.

The battery box comprises a box body with an opening in the upper end, a box cover for sealing the upper end of the box body and a fire extinguishing assembly located on the side face of the box body, and the box cover and the box body are matched to form a sealed battery mounting bin. The fire extinguishing assembly used for achieving battery fire extinguishing comprises a pressure-resistant storage tank storing lithium battery fire extinguishing liquid and a pump body communicated with the interior of the pressure-resistant storage tank, and the pump body is connected with the box cover through a pipeline and used for feeding the lithium battery fire extinguishing liquid into the box cover. According to the battery box, the fire extinguishing assembly and the fire extinguishing flow channel are integrated, if uncontrollable overheating or fire disasters occur, a fire extinguishing agent can rapidly intervene, fire is prevented from spreading to other parts of a battery system, and therefore the safety of the battery system is greatly improved.

The invention provides an intercropping method of tobacco and waltheria indica. The intercropping method comprises the following steps that 1, before tobacco and waltheria indica are planted, soil is deeply ploughed, a composite agent is sprayed, and then base fertilizer is applied; the composite agent is prepared from the following raw materials: ammonium sulfate, tea tree oil, rhizobium and a peanut vine extract; (2) tobacco seedlings are selected and transplanted in February to March, waltheria indica is planted between rows, and after planting is conducted for 2-3 weeks, compound fertilizer is applied between the rows of the tobacco seedlings and the waltheria indica; (3) when rainstorm weather occurs, spraying a complex microbial inoculant within 24 hours after rainstorm, and (4) managing until harvesting tobacco and waltheria indica. By the adoption of the intercropping method, nematodes in soil are inhibited, the tobacco and the waltheria indica are effectively improved, symbiosis and growth of the tobacco and the waltheria indica are promoted, and the harvesting yield per mu of the tobacco and the waltheria indica is increased.

The invention provides a preparation method of a fiber composite photovoltaic support material, and belongs to the technical field of composite materials. The fiber composite photovoltaic support material is prepared by adding the modified basalt fiber as a composite reinforcing material and then introducing the polyisocyanurate tripolymer and the modified aluminum nitride, and the support material is high in longitudinal tensile strength and has good flame retardant property and heat-conducting property.

The invention relates to the technical field of fire detection equipment, in particular to an energy storage power station composite fire detection device which comprises a mounting base, a water spraying pipeline is arranged in the middle of the mounting base, a conical shell is arranged in the middle of the water spraying pipeline, and a conical body capable of sealing the water spraying pipeline is arranged in the conical shell. A plurality of smoke suction mechanisms capable of sucking smoke in a fire scene are arranged on the peripheral side in the conical shell, a water curtain forming mechanism capable of forming a water curtain barrier in the fire scene is arranged at the bottom of the conical shell, and air suction control mechanisms in the smoke suction mechanisms utilize the deformation characteristic of bimetallic strips when the temperature rises. The opening and closing of an air inlet hole are automatically controlled, so that fire scene smoke is accurately sucked, the water curtain forming mechanism flexibly adjusts the size of a water curtain jet orifice according to the working state of the device through the cooperation between an upper sliding shell and a lower flow guide disc, and an effective water curtain barrier is formed in a fire scene.

The invention relates to an energy storage box integrating cooling and fire fighting, an energy storage cabinet group and a refrigerant control method, the energy storage box comprises a box body and at least one battery group, the battery group comprises a battery cell arranged in the forward direction, and the top of the battery cell is provided with a fence and a first liquid accumulation cavity; a containing gap is formed between every two adjacent battery cells, a heat dissipation flow channel is formed in each containing gap and comprises a flow channel inlet, a flow channel outlet and at least one liquid accumulation flow channel, a refrigerant flows into the liquid accumulation flow channels through the flow channel inlets, and the refrigerant overflowing out of the liquid accumulation flow channels flows out of the flow channel outlets. The refrigerant positioned in the liquid accumulation flow channel directly cools the side surface of the battery cell; the top and the side face of the battery cell can be evenly covered with refrigerants for overflow heat exchange through the fences and the heat dissipation flow channels, overall heat dissipation of the battery cell can be achieved only by storing a small amount of refrigerants at the bottom of the box body, the heat exchange efficiency of immersion liquid is improved, meanwhile, the liquid consumption is greatly reduced, and the manufacturing cost of the whole system is greatly reduced.

The invention provides a flame-retardant additive for an electrolyte and application, and relates to the technical field of lithium ion batteries. Specifically, the flame-retardant additive comprises a compound formed by connecting a nitrogen-containing six-membered ring and a phosphorus-containing five-membered ring through double bonds, and the compound further comprises hydroxyl, carboxyl and a plurality of fluorine atoms and at least comprises four fluorine atoms. When the electrolyte is prepared based on the flame-retardant additive, raw materials including a lithium salt, an organic solvent, a conductive additive and a film-forming additive are also adopted. The flame-retardant additive disclosed by the invention has an excellent flame-retardant effect, strong applicability and good stability, can improve the electrochemical performance of an electrolyte or a battery to a certain extent, and has a good application prospect.

The invention belongs to the technical field of battery safety, and particularly relates to a phase change heat insulation baffle, a preparation method and application thereof, and a soft package battery module. The invention provides a phase-change heat-insulation barrier plate. The phase-change heat-insulation barrier plate comprises a phase-change heat-insulation material and a packaging film for packaging the phase-change heat-insulation material, the phase-change thermal insulation material comprises a substrate material, and a phase-change material and a flame-retardant material which are adsorbed on the substrate material, the substrate material comprises a silicon dioxide nanofiber felt and a supporting material; the phase-change material comprises one or more of silica sol, alumina sol and a saturated calcium chloride solution, and the flame-retardant material comprises a phosphorus-containing flame retardant. The phase-change thermal insulation material contains the phase-change material and the thermal insulation substrate, has a very high phase-change enthalpy value, plays a good role in blocking heat spreading through thermal insulation of the thermal insulation material and phase-change energy consumption of the phase-change material during thermal runaway, and can delay the heat spreading time or inhibit the heat spreading.

The utility model discloses a bus duct with a flame-retardant function, which relates to the technical field of bus ducts and comprises a shell and a top cover, two lower fixing blocks are fixedly connected to the bottom end of the inner side of the shell close to a wire inlet and a wire outlet of the bus duct, a plurality of semicircular arc-shaped lower fixing grooves which are uniformly distributed are formed in the upper ends of the lower fixing blocks, and the lower fixing blocks are fixedly connected with the top cover. Two threaded rods are fixedly connected to the edge of the upper end of the lower fixing block, an upper fixing block used for clamping a cable is slidably connected to the outer surface of each threaded rod, an upper fixing groove is formed in the position, corresponding to the lower fixing groove, of the lower end of the upper fixing block, and rubber pads are fixedly connected to the inner side of the upper fixing groove and the inner side of the lower fixing groove correspondingly; the outer surface of the threaded rod is in threaded connection with a threaded sleeve, the outer surface of the threaded rod is sleeved with a spring used for resetting the upper fixing block upwards, the cables can be clamped and carded through the upper fixing groove and the lower fixing groove, the cables are prevented from being interwoven together, and potential safety hazards are reduced.

The utility model relates to the field of forest pest control, and particularly discloses a monochamus alternatus trapping device which comprises a pair of trapping plates, the surfaces of the trapping plates are white, the two trapping plates are oppositely inserted in the length direction of the trapping plates, and a collision area is formed between every two adjacent trapping plates. The lower end of the trapping plate is connected with a conveying hopper, and the output end of the conveying hopper is connected with a detachable collecting barrel. According to the trapping device, the oppositely-inserted trapping plate structure is adopted to increase the trapping area, when the trapping device is used, long-horned beetles collide with the trapping plates according to the tendency of the long-horned beetles to the white color, the long-horned beetles are conveyed into the collecting barrel through the conveying hopper, and then trapping of the long-horned beetles is completed; compared with trapping structures in other colors, the white structure is adopted as the trapping core, so that the trapping effect is better; the whole device is simple and reasonable in structure, convenient to use, high in trapping efficiency, low in production cost and easy to popularize and apply, and has important significance on controlling harm of monochamus alternatus.

The modularized fire extinguishing capsule comprises a hoop body and swallow-tail-shaped embracing arms integrally formed on the left outer wall and the right outer wall of the hoop body, and a fire extinguishing capsule body filled with liquid carbon dioxide is installed on the outer wall of the side, away from the hoop body, of each swallow-tail-shaped embracing arm. A one-way valve used for being filled with liquid carbon dioxide is installed at the top end of the fire extinguishing capsule body, and a fire sprinkler is installed at the bottom end of the fire extinguishing capsule body. According to the fire extinguishing capsule, the specially designed hoop body is installed on a forest tree, when the temperature of a fire source rises, the glass tube at the bottom end of the fire extinguishing capsule can cause the thermosensitive liquid to expand and crack due to temperature rise, and therefore liquid carbon dioxide in the capsule makes contact with outside air, is gasified and is sprayed out through the spray head; by means of the automatic triggering mechanism, the fire extinguishing process is more intelligent and does not depend on manual intervention, and the risk of firefighters is greatly reduced.

The invention discloses digital power operation monitoring user external power distribution equipment which comprises a plurality of outdoor power distribution cabinets, a monitoring cloud platform, a plurality of monitoring protection structures and a communication structure. Real-time monitoring of environmental parameters in the outdoor power distribution cabinet is achieved, and it is ensured that an operator can know the working state of equipment in time. By adopting an advanced sensing technology, such as a current sensor, high-precision current measurement can be realized, and the accuracy and the reliability of a measurement result are ensured; when parameters such as temperature, humidity and current exceed preset safety ranges, the system gives an alarm to remind an operator to take measures in time, so that electrical accidents and fire disasters are effectively prevented; if water immersion or smog is detected, the system can automatically start a corresponding response mechanism, such as cutting off a power supply, giving out an audible and visual alarm and the like, so that the equipment safety is ensured.

The invention discloses an intelligent filtering energy-saving electricity control device, and belongs to the technical field of electric energy filters. Comprising an electric control cabinet protection cabinet body and a sealing door hinged to the outer surface of the electric control cabinet protection cabinet body, an electric energy filter main board is fixedly installed at the inner axis position of the electric control cabinet protection cabinet body through an auxiliary support, and a first circular ring frame is fixedly installed at the outer edge position of the electric energy filter main board through an auxiliary support; the first circular ring frame and the adjustable air control module are arranged in the protection cabinet body of the electric control cabinet, and a servo motor and a rotating plate in the circular ring driving module are combined, so that 360-degree surrounding rotation of fan blades is realized, and heat around the main board of the electric energy filter is effectively taken away. Meanwhile, the outward-extending infrared detection unit can perform 360-degree dead-corner-free scanning in the rotating process, the temperature of all parts of the electric energy filter mainboard is monitored in real time, it is ensured that preventive measures are taken before equipment damage caused by high-temperature elements, and the stability and reliability of the equipment are improved.

The utility model discloses a mounting structure of a patch type perfluorohexanone fire extinguishing device. The mounting structure comprises a patch type perfluorohexanone fire extinguishing device body, a guide groove and a magnetic attraction layer, the guide grooves are symmetrically formed in the mounting surface of the patch type perfluorohexanone fire extinguishing device body, fire extinguishing ropes are arranged in the guide grooves in a penetrating mode, the patch type perfluorohexanone fire extinguishing device body is further provided with penetrating holes communicated with the guide grooves, and the magnetic attraction layer is bonded to a bonding layer of the patch type perfluorohexanone fire extinguishing device body in a peelable mode. The adsorption device is used for adsorbing the patch type perfluorohexanone fire extinguishing device body on a cabinet body. The utility model belongs to the technical field of patch type perfluorohexanone fire extinguishing, and particularly relates to a mounting structure of a patch type perfluorohexanone fire extinguishing device.

The present application belongs to the technical field of high-performance nylon fiber materials, and particularly relates to a preparation method of antibacterial modified high-performance nylon fiber. The preparation method comprises the following steps: S1, a triazine ring-containing dicarboxylic acid is prepared by taking cyanuric chloride, 4-amino-2,2,6,6-tetramethylpiperidine and p-hydroxybenzoic acid as raw materials, triphenylphosphine oxide is subjected to nitration treatment and reduction treatment to obtain tris(3-aminophenyl)phosphine oxide, and the triazine ring-containing dicarboxylic acid and the tris(3-aminophenyl)phosphine oxide are mixed for a synthesis reaction to obtain modified hyperbranched polyamide; S2, polyamide masterbatch, modified hyperbranched polyamide, antibacterial material, zinc stearate and antioxidant are melt blended, extruded and granulated to obtain modified nylon chip; and S3, the modified nylon chip is subjected to melt spinning to obtain antibacterial modified high-performance nylon fiber. The present application not only ensures that the fiber has good antibacterial performance, but also effectively improves the breaking strength and flame retardant performance.

The invention discloses a low-smoke halogen-free flame-retardant cable for a charging pile, and belongs to the technical field of cables. The cable sequentially comprises a conductor, an insulating layer and an outer sheath layer from inside to outside, the conductor is formed by mutually twisting copper-tin alloy wires; the insulating layer is made of butadiene styrene rubber; the outer sheath layer is prepared from the following components in parts by weight: 40 to 60 parts of high-density polyethylene, 15 to 20 parts of acrylate rubber, 10 to 15 parts of ethylene-vinyl acetate copolymer, 8 to 10 parts of modified silicon dioxide, 3 to 8 parts of compatilizer, 1 to 2 parts of antioxidant and 1 to 2 parts of lubricant. The prepared modified silicon dioxide is used as a flame-retardant reinforcing component in the outer sheath layer, and the comprehensive performance of the low-smoke halogen-free flame-retardant cable for the charging pile can be remarkably improved.

The invention discloses a wear-resistant tensile composite material for rubber gloves and a preparation method thereof, and belongs to the technical field of new materials, the wear-resistant tensile composite material comprises the following raw materials by weight: 80-100 parts of modified rubber, 10-15 parts of a filler, 3-5 parts of a plasticizer, 1-2 parts of an antioxidant, 2-3 parts of a heat stabilizer, 2-3 parts of a lubricant and 5-8 parts of a vulcanizing agent; the prepared expanded particles serve as polymerization base points of modified polyborosilicate rubber, promote fracture of disulfide bonds in modified ternary rubber and serve as radiation absorption centers to promote crosslinking of the expanded particles and the modified ternary rubber, the mechanical performance of the material is improved, a glassy protective layer is generated by a silicon-boron structure of the expanded particles in the combustion process and covers the surface of the material, and the service life of the material is prolonged. And carbonization of organic matters is promoted, so that the material forms a heat-insulating carbon layer, and the flame retardant property of the material is improved.

The application relates to the technical field of packaging materials, in particular to a high-strength flame-retardant packaging material and a preparation method thereof. According to weight parts, the packaging material comprises the following raw materials: 70-90 parts of polylactic acid, 6-12 parts of polybutylene adipate terephthalate, 4-15 parts of a flame retardant, 3-7 parts of modified montmorillonite, 3-5 parts of maleic anhydride grafted polypropylene, 0.3-0.5 parts of an antioxidant and 0.5-1 part of a lubricant. The packaging material has excellent flame-retardant performance, bacteriostatic performance, barrier performance and mechanical performance.

The battery pack (1) comprises: a battery group, wherein six batteries (11) having a cylindrical shape and having electrode terminals at the ends on the +Z direction side and the -Z direction side in the cylinder axis direction are arranged along the X-axis direction with the cylinder axes parallel to each other; and tabs (121, 131) connecting the electrode terminals on the +Z direction side of each of the six batteries. Furthermore, when the three batteries (11) arranged along the X-axis direction are arranged as the first battery, the second battery, and the third battery in their arrangement order, the tab (121) is not connected to the second battery, but is connected to the first battery and the third battery.

The utility model discloses a novel new energy battery cell flame-retardant sheet which comprises a heat insulation layer, the two flame-retardant layers are fixedly connected to the two sides of the heat insulation layer respectively; the two phase change layers are fixedly connected to the sides, away from each other, of the two flame-retardant layers respectively, each phase change layer comprises a first heat conduction plate, one side of each first heat conduction plate is fixedly connected with the corresponding flame-retardant layer, the other side of each first heat conduction plate is provided with a containing groove, and the containing grooves are filled with phase change microcapsules; and the second heat conducting plate is fixedly connected to the side, provided with the containing groove, of the first heat conducting plate. The utility model can prevent thermal runaway and restrain flame spread.

The invention discloses a flame-retardant impact-resistant composite low-voltage power cable which comprises a cable core, a low-smoke halogen-free wrapping layer wrapping the cable core, an oxygen barrier layer and an outer sheath. The oxygen barrier layer and the outer sheath are arranged outside the low-smoke halogen-free wrapping layer from inside to outside. The cable core is formed by twisting a plurality of power line cores and a plurality of signal line cores, and the power line cores and the signal line cores are symmetrically twisted in a triangle shape. A filling rope is filled in a twisting gap of the cable core; the oxygen barrier layer is extruded outside the low-smoke halogen-free wrapping layer, and the oxygen barrier layer is made of high-flame-retardant polystyrene; and the outer sheath is extruded outside the oxygen barrier layer, and the material of the outer sheath is impact-resistant and high-temperature-resistant polystyrene. The cable has excellent flame retardation, impact resistance and safety performance, and also has the advantages of space saving, labor cost reduction, good high temperature resistance, good flexibility, high tensile strength, stable signal transmission, good insulation performance, environmental protection and good environmental resistance.

The invention discloses an operation method of a fire-fighting early warning system based on a cloud platform, and the method mainly comprises the following steps: S1, collecting the temperature of inflammables in a workshop through a monitoring module, and inputting the comprehensive information of the inflammables and explosives in the workshop into a system; s2, starting to analyze the visual image and the inflammable temperature in the workshop, judging whether a fire occurs or not according to an analysis result, and performing early warning; s3, when the system detects that a fire occurs, the combustion characteristics of inflammables at a fire point and the distance between the inflammables around the fire point and the fire point are analyzed, and the fire hazard degree and the fire spreading trend are judged according to the analysis result; and S4, after the fire hazard degree is determined, analyzing and planning an escape route. The method has the characteristic of improving accuracy and safety.

The utility model relates to the technical field of doors and windows, and particularly discloses a fireproof aluminum alloy door and window which comprises a window frame and a glass panel fixedly installed in the window frame, a circulating pipe is fixedly installed in the window frame and arranged to be a frame body, and the size of the circulating pipe is matched with that of the frame body. Uniformly distributed water outlet pipes are arranged on one side of the window frame, the water outlet pipes are communicated with a circulating pipe, a water supply pipe is fixedly mounted on one side of the window frame, the water supply pipe is communicated with the circulating pipe, a water pump is arranged on the water supply pipe, a smoke sensor and a flame sensor are arranged on the window frame, and a mounting frame is fixedly mounted on one side of the window frame; the aluminum alloy door and window has the intelligent fireproof water spraying function, water can be automatically sprayed to the door and window and the surrounding environment of the door and window when a fire breaks out, and therefore fire spreading is effectively restrained, and precious time is won for escape and rescue.