20 results about "Active fire protection" patented technology

The active fire prevention system comprises a fire extinguishing module, a side span emergency module and a middle span emergency module, the fire extinguishing module comprises a plurality of fire pools fixed to the top of a bridge tower, and a water supply main pipe connected with the bottom of the fire extinguishing module is laid in the extending direction of the main cable and fixed to the top of the main cable; spraying branch pipes and temperature sensing automatic closing type sprayers are arranged on the water supply main pipe at intervals. The side span emergency module comprises a first emergency water storage tank and a first pressurizing water pump which are fixed in a stiffening beam and are communicated with a side span water supply main pipe through a first emergency connecting pipe, and the mid-span emergency module comprises a second emergency water storage tank and two second pressurizing water pumps which are fixed in the middle of a mid-span stiffening beam; and the two second emergency connecting pipes are respectively communicated with water supply main pipes on two sides of the midspan. Real-time fireproof protection of the main cable is achieved through the fire extinguishing module, the temperature rise of the main cable is directly prevented from exceeding the critical temperature, the risk of structural failure is avoided, the emergency module continuously provides a water source and pressure when the water source is insufficient, and the fire extinguishing duration is prolonged.

The invention discloses a passive self-sensing active fire prevention method, system, equipment and medium for a power distribution pipe gallery and a cabinet, and belongs to the technical field of power system safety protection, and the method comprises the steps: monitoring an electromagnetic characteristic spectrum and an arc spectrum of a power distribution facility through a passive electromagnetic sensing network, and positioning and grading an early fire risk; the ignition time is predicted based on a dynamic heat model, and arrangement is optimized in combination with the suitability data of the perfluorohexanone microcapsules; and the self-powered integrated module triggers shock waves at key time to induce the microcapsules to cooperatively rupture to release the fire extinguishing agent. According to the invention, active fire prevention of passive accurate early warning and autonomous fire extinguishing is realized, and the response speed and reliability are obviously improved.

The invention discloses a perfluorohexanone microencapsulation-based passive self-sensing active fire protection device, and relates to the technical field of fire safety, the perfluorohexanone microencapsulation-based passive self-sensing active fire protection device comprises a storage bracket and a cross beam, the cross beam is fixedly connected with the storage bracket, and the arrangement direction of the cross beam is parallel to the long axis direction of the storage bracket; the mounting piece comprises a mounting plate and a buckle fixedly connected with the mounting plate, and the buckle is connected with the edge of the cross beam in a clamped mode; and the pressing piece comprises a connecting rope connected with the buckle and a pressing sleeve connected with the end part of the connecting rope. The connecting rope is connected with the connecting part, a maintainer pushes the pressing sleeve to move in the direction close to the mounting plate, the pressing sleeve moves to pull the connecting rope to move, the connecting rope moves to drive the side wall of the buckle to be bent inwards, and therefore fixation between the buckle and the cross beam is relieved, and the maintainer can conveniently complete dismounting of the mounting plate; therefore, maintenance personnel can replace the perfluorohexanone patch conveniently.

The application relates to the technical field of cross-linked polyethylene power cables, and discloses a polyethylene flame-retardant power cable, which is characterized in that a flame-retardant structure layer is arranged between a cable core insulating layer and a cable armor layer, the structure layer is composed of equally-spaced separation ring assemblies and ceramic fillers filled between the separation ring assemblies, an outer part is uniformly wound with a ceramicized adhesive tape layer, the separation ring assemblies contain expanded fillers, the expanded fillers are driven to expand and push the inner thrust plates to slide when on fire, and the ceramic fillers are bidirectionally extruded: the ceramic fillers are dynamically filled in the gaps generated due to the collapse of the cable core insulating layer, and the internal fire passage is blocked; the ceramic fillers push the ceramicized adhesive tape layer in a softened state to embed into the armor layer pores, mechanical anchoring is formed, and interlayer peeling caused by solidification shrinkage is prevented. The application changes the cable from a passive fire resistance into an active fire prevention system with self-adaptive plugging and anchoring capacity, and significantly improves the structural integrity and flame-retardant reliability of the cable in a real fire.

This invention discloses a fire-resistant, flame-retardant, and highly weather-resistant integrated marine furniture system, comprising a three-layer architecture: a basic layer, an intelligent layer, and an application layer. The basic layer consists of prefabricated functional units and quick-connect interfaces for rapid installation. The intelligent layer includes an intelligent fire prevention unit and an adaptive environment unit. The intelligent fire prevention unit automatically triggers targeted aerosol fire suppression based on dual-condition logic using temperature and smoke sensors and safety control nodes deployed in key locations, enabling early autonomous fire suppression. The adaptive environment unit learns user habits through sensors and, upon user confirmation, solidifies "context-operation" rules, achieving personalized automatic environmental adjustment. The application layer provides various interactive terminals. This system represents an upgrade from passive alarm to active fire prevention, and from manual operation to intelligent adaptation, significantly improving the safety and comfort of ship cabins.

The application discloses a special fiber cloth-based modular military thermal insulation boot and a manufacturing method thereof, and belongs to the technical field of individual protection equipment. The thermal insulation boot comprises a composite function sole module, a core passive heat insulation inner container module, a boot body framework and integrated outer cover module and an optional active heating and control module. The core innovation lies in that high-silicon fiber cloth is used as the inner container core heat insulation material, and the extreme passive thermal insulation and active fire prevention are realized; the sole is integrated with a retractable anti-skid steel nail mechanism, which can be instantaneously switched between normal and ice surface / steep slope environments; a moisture management channel is designed between the inner container and the boot body, and a small fan ventilation system is integrated, so that the problem of dampness is solved; the inner container is pre-buried with an electrical connection interface, and the active heating module can be plugged and connected. The application has the advantages of passive thermal insulation, full-terrain anti-skid, active fire prevention, intelligent temperature control and easy maintenance through the modular design, and is suitable for military operations in extremely cold, slippery and potentially high-temperature environments, and effectively improves the survival ability and combat effectiveness of soldiers.

The invention relates to the technical field of parking garages, and discloses a fireproof design method for a mechanical three-dimensional parking garage, which is suitable for urban high-density parking areas containing new energy vehicles. The method comprises the following core steps: determining a first-grade fire resistance grade, and constructing a specific fire heating curve containing thermal runaway, continuous combustion and attenuation stages in combination with a new energy vehicle spontaneous combustion experiment and FDS simulation; the critical temperature method is used for calculating the temperature rise of the component, and the bearing force method is used for introducing local high-temperature correction; hierarchical fireproof protection (steel structure multi-layer coating, equipment partition isolation and active fireproof linkage) is designed; and strengthening a fireproof structure and making a full-period maintenance plan. The method breaks through the limitation of the traditional design, covers the checking calculation of key components, greatly improves the structural safety and system reliability in the fire, and is high in operability and wide in adaptability.

The invention relates to a current collector containing a heat-sensitive flame-retardant microcapsule coating, a preparation method of the current collector and application of the current collector in a lithium battery, firstly, a heat-sensitive flame-retardant microcapsule wrapped with a fire extinguishing agent core material is prepared and mixed in conductive slurry, and the current collector is coated with the heat-sensitive flame-retardant microcapsule; after the current collector coated with the heat-sensitive flame-retardant microcapsule coating is further prepared into a lithium battery, an active fireproof function can be realized, and when the temperature of the battery exceeds a set threshold value, a fire extinguishing agent is automatically released, so that millisecond-level active protection is realized; the fire extinguishing unit is integrated on the current collector in situ, so that the purpose of efficiently inhibiting thermal runaway is achieved.

The present application relates to a kind of active and passive integrated fireproof insulation board and its preparation method, including n passive fireproof layer and n or n+1 active fireproof layer;Passive fireproof layer and active fireproof layer are integrated;Passive fireproof layer includes inorganic fiber felt and aerogel;Aerogel is obtained by curing adhesive aerogel stock solution, stock solution includes: 1000-4000 parts of silica sol by mass, silicate 50-150 parts, phosphate binder 10-50 parts, quicklime 5-20 parts, titanium white 5-50 parts, calcium stearate 10-50 parts, hydrophobic modifier 5-50 parts, acid-base regulator 5-50 parts and solvent 1000-4000 parts;Active fireproof layer is at least one of inorganic fireproof board material with heat decomposition active energy consumption, such as gypsum fireproof board.The present application solves the problems such as high organic content, poor flame retardance, high hygroscopicity and significant decline in thermal insulation performance and safety after use in existing fireproof insulation board.

The application discloses a novel active fireproof distribution box in the technical field of distribution boxes, which comprises a box body, and circular shafts are fixedly installed at the back of both sides of the inner cavity of the box body. The high-pressure cavity, electromagnetic valve, circular air bag and first thorn needle are arranged. When a fire breaks out inside the box body, dense smoke will be continuously generated inside the box body. At this time, the two smoke sensors can sense the generation of the dense smoke and send a signal to the controller. The controller will control the electromagnetic valve to open. At this time, the high-pressure gas in the high-pressure cavity can enter the inside of the bottom cavity. Under the action of the air pressure, the moving plate can drive the first thorn needle to move downward. Finally, the bottom end of the first thorn needle can puncture the circular air bag, so that the circular air bag is burst open. At this time, the dry powder in the circular air bag can be scattered downward, so that the effect of extinguishing the fire source inside the box body can be achieved, and the active fireproof purpose is effectively achieved.

The invention relates to the technical field of wind power generation equipment, and discloses a fireproof cabin based on offshore wind power generation, which comprises a cabin shell, a fireproof separation mechanism, a ventilation mechanism and an air supply mechanism. The interior of the cabin is divided into a plurality of independent fireproof subareas by arranging the fireproof separation mechanism, so that fire is prevented from spreading in the cabin, the fire is controlled in a local area, and the situation that an initial small fire is developed into a whole-cabin catastrophic fire is avoided; the ventilation mechanism and the air supply mechanism convey air into the cabin together and exhaust the air through the air outlet pipe, and a positive pressure environment higher than the external environment air pressure is formed and maintained in the cabin. The positive pressure design can effectively prevent an external fire source from invading the cabin; as the positive pressure airflow can prevent external smoke and flame from entering, and meanwhile, oxygen flowing inwards is reduced, and internal fire diffusion is restrained. The active fire prevention capacity of the cabin can be improved, and the cabin is suitable for the offshore remote environment and the occasion where external rescue is difficult to arrive quickly.

This invention discloses a multifunctional coating, its preparation method, and its application, belonging to the technical field of bridge protection materials. This invention utilizes a micro-nano composite structure of MOF and molybdenum disulfide grown in a graded manner on the surface of a thin sheet material, synergistically with fluorosilicone resin to prepare an anti-icing coating. The anti-icing coating prepared using this method exhibits excellent anti-icing performance, achieving ultra-low ice adhesion. Furthermore, molybdenum disulfide has high photothermal conversion efficiency; in cloudy conditions, it converts ultraviolet light into heat energy, increasing the surface temperature and significantly delaying the icing initiation time. This invention also provides a multifunctional coating that achieves integrated fireproofing and ice-repelling through a gradient structure design of "aerogel felt - sealing layer - anti-icing layer," exhibiting high durability in extreme environments and a long service life, providing long-term protection. Specifically, the aerogel felt can insulate against flames up to 1100℃, and the anti-icing functional layer maintains low ice adhesion strength, simultaneously achieving efficient ice repellency and active fireproofing and heat insulation.

The invention provides a fireproof material. The fireproof material is composed of a eutectic solvent and a flame-retardant filler dispersed in the eutectic solvent, the eutectic solvent is used as a continuous phase matrix and a charring agent of the material; wherein the eutecticevaporate solvent is composed of a hydrogen bond acceptor and a hydrogen bond donor, the eutecticevaporate solvent can be decomposed to form a compact carbon layer at a high temperature, so that the active fireproof effect is achieved, and the invention relates to the technical field of new materials and fireproof safety. When the selected eutectic solvent system is heated, a hydrogen bond network of the eutectic solvent system is disintegrated, the components can be subjected to a series of chemical reactions such as decomposition, crosslinking and cyclization, a compact, stable and porous carbon layer is generated in situ, and the carbon layer serves as a physical barrier, so that the fireproof performance of the fireproof material is improved. And heat and oxygen can be effectively prevented from being transferred to the inside, so that an integrated efficient flame-retardant effect from inside to outside, which is not possessed by a traditional physical blending material, is realized.

This invention provides a method and system for pre-analyzing the impact of public figures' statements based on multi-agent intelligence. The method includes: first, a social background generation module retrieves background information and related social issues of the public figure in parallel, constructing a semantic environment that closely resembles reality. Then, the core multi-agent discussion module is activated, driving multiple agents to conduct multiple rounds of simulated discussions. This process is not simple text analysis, but a dynamic simulation of the clash of viewpoints, the evolution of positions, and the fermentation of public opinion in real society. Finally, the consequence analysis module outputs a structured, multi-dimensional risk report based on the simulation results. This transforms an invisible, future public opinion risk into a quantifiable and analyzable "sandbox simulation" result through technological means, achieving a fundamental shift from "passive firefighting" to "proactive fire prevention." Its technological superiority is unmatched by existing post-event negative situation analysis tools.

The semi-active fireproof aluminum alloy column comprises a stand column, an inner cavity of the stand column is divided into an upper water storage cavity and a lower water storage cavity through a partition plate, an upper water supplementing tank with an opening in the upper portion is arranged in the upper water storage cavity, and an outer side water storage area is formed between the upper water supplementing tank and the upper water storage cavity; a water mist spraying device connected with the bottom of the upper water supplementing tank is arranged on the outer wall of the stand column; the bottom of the upper water supplementing tank communicates with the lower water storage cavity through a water supplementing pipe, and the top of the lower water storage cavity communicates with the upper water storage cavity through a breather pipe. According to the semi-active fireproof aluminum alloy column, a pure mechanical structure is adopted, power supply or complex control is not needed, the reliability is high, and maintenance is easy and convenient.

The invention discloses a thermal management intelligent early warning cable based on a high-flame-retardant composite phase change material and a preparation method, the cable comprises a cable core, the cable core comprises a plurality of conductor units and a plurality of special temperature sensing optical cables, gaps of the cable core are filled with the high-flame-retardant composite phase change material, and an outer sheath is extruded outside the cable core. According to the invention, the embedded distributed high-temperature-resistant sensing optical fiber is utilized to realize real-time sensing and accurate positioning of abnormal temperature of the cable, meanwhile, polyethylene wax / EVA is utilized as a matrix, and a high-flame-retardant composite phase-change material which is compounded with expandable graphite, ammonium polyphosphate and other components is utilized for filling, so that rapid absorption and slow release of instantaneous thermal shock are realized, and the thermal shock resistance of the cable is greatly improved. And an active fireproof barrier is constructed by virtue of the intrinsic high-flame-retardant characteristic, so that multiple problems of fault early warning lag, out-of-control heat accumulation and self-flammability of the material are synchronously solved, and early intelligent intervention and active suppression of cable fire risks are realized.

The invention discloses a power distribution pipe gallery and cabinet passive self-sensing active fireproof detection method and system based on perfluorohexanone microencapsulation, and belongs to the technical field of electrical fireproof detection, and the method comprises the steps: collecting three-phase current harmonic waves, and converting the three-phase current harmonic waves into magnetic field intensity; establishing a multi-mode resonance model to identify an overall breathing mode frequency, an interlayer dislocation mode frequency and a liquid nucleus shaking mode frequency, and comprehensively outputting a structure state label; the natural fracture type of each position point is pre-judged according to the structure state label; constructing a graph structure model to iteratively simulate the cascade process of heat conduction and node fracture, and outputting a fracture space-time sequence; analyzing a spatial expansion mode and a natural fracture type time evolution trend based on the fracture space-time sequence, determining a coping strategy and an early warning level, and extracting a fault position, a phase and an early warning moment; and comprehensively judging fracture and fire extinguishing success by comparing a judgment standard. Through passive self-sensing detection, microcapsule structure state fine determination, cascade fracture space-time prediction and graded early warning closed loop verification are realized.

The application discloses a kind of building thermal insulation curtain wall structures, relate to building curtain wall structure technical field, including curtain board assembly, including curtain board main body, the outer surface of curtain board main body is embedded with fireproof part, the guide groove is opened in curtain board main body, the communicating pipe is fixedly connected in curtain board main body, the butt joint barrel is fixedly connected in the side of curtain board main body, and it is set in one end of communicating pipe, the communicating pipe one end is passed through curtain board main body and is communicated with fireproof part, limit hole is opened in the surface of communicating pipe;And, installation component, including mounting seat, air cavity is opened in the mounting seat, butt joint pipe is rotatably connected on the mounting seat, and one end thereof is communicated with air cavity.The application can be actively prevented fire by the cooperation of curtain board assembly in installation component, when building is on fire, the fire that can be actively hindered to up and down, can actively intervene when fire occurs Fire spread, reduce the probability of causing large accident.

The invention relates to the technical field of cross-linked polyethylene power cables, and discloses a polyethylene flame-retardant power cable which is characterized in that a flame-retardant structural layer is arranged between a cable core insulating layer and a cable armor layer, and the structural layer is composed of separation ring assemblies arranged at equal intervals and ceramic filler filled between the separation ring assemblies. A ceramic adhesive tape layer is uniformly wound outside the cable core, expansion filler is contained in the separation ring assembly, the expansion filler is heated to expand to drive an internal pushing plate to slide in a fire disaster, and the ceramic filler is extruded in two directions to dynamically fill a gap generated by collapse of the cable core insulating layer inwards to block an internal fire behavior channel; and the ceramic adhesive tape layer in a softened state is pushed outwards to be embedded into pores of the armor layer, so that mechanical anchoring is formed, and interlayer stripping during curing shrinkage is prevented. The cable is converted from passive fire resistance into an active fire prevention system with self-adaptive plugging and anchoring capabilities; and the structural integrity and the flame-retardant reliability of the cable in a real fire disaster are obviously improved.