669results about How to "Improve fire extinguishing efficiency" patented technology

The invention discloses an energy storage power station fire safety monitoring system based on a big data Internet of Things, and relates to the technical field of fire safety monitoring. A multi-dimensional sensor network is adopted to monitor parameters in real time, a multi-dimensional parameter model under normal working conditions is established based on a multivariable Gaussian distribution model, and the real-time monitoring of the parameters is realized. In the early stage of thermal runaway, abnormity is recognized through the Mahalanobis distance, an early warning signal can be triggered immediately when the abnormity occurs, the defects that in a traditional method, the monitoring means is single, and response lags behind are overcome, fire early warning is more accurate and timely, and the concentration of harmful gas is monitored in real time in combination with a gas detection module; sensor data and gas concentration data are fused through Bayesian inference, the fire risk is evaluated more comprehensively, the comprehensiveness of fire risk evaluation is remarkably improved, a fire area is positioned through a fire source positioning algorithm, and the fire extinguishing range is adjusted in real time according to the fire risk level and the dynamic change of fire source diffusion.

The invention provides a forest fire prevention unmanned aerial vehicle patrol early warning system and method based on edge calculation, and relates to the technical field of unmanned aerial vehicle patrol early warning. The patrol early warning system comprises an unmanned aerial vehicle platform, a data acquisition module, a data processing and analysis module, a communication and early warning module and a ground control and scheduling platform. According to the invention, calculation and data storage are close to a data source through edge calculation, the data collected by the unmanned aerial vehicle is processed in real time at an edge calculation node without being transmitted to a remote cloud and returning a result, the data processing and response time is greatly shortened, fire hazards can be found in seconds or even shorter time, and early warning can be given out. And the system can analyze data in real time in the flight process of the unmanned aerial vehicle, provides real-time decision support for a ground control center, and can quickly formulate a fire-fighting scheme according to information such as fire behavior and wind direction when a fire occurs, so that the fire-fighting efficiency is improved.

The invention discloses a remote Internet of Things control management system and method based on fire fighting, and belongs to the technical field of Internet of Things. The system comprises an image recognition module which obtains a video stream of a fire scene through a monitoring camera, and carries out the real-time analysis and recognition of an image through image processing and a deep convolutional neural network; the gas recognition module is used for monitoring the gas concentration of a fire scene in real time and recognizing gas components by using a gas recognition algorithm; the data fusion analysis module is used for carrying out feature fusion on the data acquired by the image recognition module and the gas recognition module, and carrying out analysis and modeling on the fused data; the decision support module is used for performing fire risk assessment according to an analysis result of the data fusion analysis module; based on historical data and the scene model, performing simulation and prediction of a fire development trend; and the remote internet-of-things control module is used for providing data for checking fire scene conditions in real time, so that a user can remotely control all equipment and devices of the fire extinguishing system.

The invention relates to the technical field of fire-fighting control, in particular to a fire-fighting linkage control device for petroleum and petrochemical engineering, which comprises a multi-modal data acquisition module, a fire modeling and prediction module, a self-adaptive fire extinguishing control module and a virtual reproduction and optimization module. Dynamically modeling a flame form through multi-modal data fusion and a generative adversarial network; a fire path is accurately predicted in combination with a differential equation network; a path planning algorithm is adopted to optimize equipment scheduling, and modeling parameters and equipment configuration are analyzed and optimized through virtual scene generation and feedback data. According to the method, the accuracy of fire scene modeling and the efficiency of fire extinguishing equipment dispatching are remarkably improved, the problems that a traditional fire extinguishing system is slow in response and low in control accuracy are solved, and a powerful technical guarantee is provided for safe operation of petroleum and petrochemical storage tanks.

The utility model belongs to the technical field of water segregators, and particularly relates to a remote control fire-fighting water segregator which comprises a water inlet pipe, at least two water outlet pipes, a control valve arranged between the water inlet pipe and the water outlet pipes, a rocker driving piece used for driving the control valve to be opened and closed, and a remote control electromagnetic valve. The water segregator is convenient and fast to use, saves time and labor, shortens the fire extinguishing time, improves the fire extinguishing efficiency, can drive the control valve to be opened and closed by manually driving the rocker driving piece, avoids the problem that the water segregator cannot be used due to the failure of the remote control electromagnetic valve, ensures the normal use of the water segregator, ensures the fire extinguishing and disaster relief efficiency, and is safer to use.

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 discloses a high-efficiency current-limiting power distribution switch for a power distribution terminal, and relates to the technical field of power distribution switches, the high-efficiency current-limiting power distribution switch comprises an electric box, an electric brake is fixedly mounted in the electric box, a circuit breaker is fixedly mounted in the electric box, a switch is rotatably mounted on the surface of the electric brake, and the high-efficiency current-limiting power distribution switch also comprises a protection device and a fire extinguishing device; wherein the protection device comprises a carrying plate, a protection cover, a sliding plate, a sleeve rod, a limiting rod, a Z-shaped sheet and an abutting plate, the carrying plate is fixedly installed on the inner wall of the electric box, the protection cover is rotatably installed on the surface of the carrying plate, the sliding plate is slidably installed on the inner wall of the electric box, and the sleeve rod is fixedly installed at the top of the sliding plate; the limiting rod is fixedly installed at the bottom of the sliding plate, thrust is applied to the protective cover through the Z-shaped piece, the protective cover is automatically opened after limiting is correctly relieved, a good operation space can be provided, and maintenance is more convenient and efficient.

The invention discloses a battery energy storage cabinet with a built-in automatic fire-fighting structure, which comprises an energy storage cabinet main body, a drawer bracket is arranged in an inner cavity of the energy storage cabinet main body, and a plurality of groups of battery placement boxes are arranged on the drawer bracket; and a smoke sensor and a temperature sensor are arranged on the drawer bracket and are positioned above each group of battery placement boxes. According to the invention, a smoke shielding fire extinguishing structure is arranged in the battery energy storage cabinet with a built-in automatic fire extinguishing structure; an electric telescopic rod in the smoke shielding fire extinguishing structure is utilized to enable a fire extinguisher to spray a fire extinguishing agent to the upper part and the lower part of an abnormal battery placement box through a fire extinguishing agent spray head on a fire extinguishing agent spray pipe under a sealed condition by virtue of a transmission structure, so that the fire can be extinguished more quickly; and meanwhile, the surrounding battery packs are protected from being influenced by the fire, so that the problems that the fire cannot be extinguished quickly and the surrounding battery packs are influenced by the fire are solved.

The invention relates to the field of fire hoses, and provides a flame-retardant high-strength fire hose and a preparation method thereof.The fire hose sequentially comprises an outer protection layer, a flame-retardant layer, a woven layer, a reinforcing layer and a lining layer from outside to inside; the flame-retardant layer contains a surface-modified magnesium hydroxide micro-tube coated flame retardant, so that the flame-retardant effect is enhanced; the reinforcing layer contains the surface-modified bead-shaped silicon carbide nanowires, so that the mechanical property of the reinforcing layer can be remarkably improved. The five-layer composite structure and the design of multiple functional materials are adopted, comprehensive improvement of flame retardance, mechanical property, use convenience and the like is achieved, the problem that a traditional fire hose is insufficient in flame retardance and mechanical property is solved, and the fire hose has wide application value.

The invention provides an efficient cooling and fire extinguishing agent control method for an energy storage system fire, and relates to the field of fire extinguishing and cooling. Determining a cooling delay coefficient of the energy storage system during cooling control according to the dynamic temperature data; then the spraying adaptive amount during fire extinguishing spraying is determined through the spraying node; according to the target cooling strategy and the cooling delay coefficient, the distribution loss amount of each level of fire extinguishing agent under the fire extinguishing temperature control working condition is determined, and the cooling compensation characteristics of the automatic fire extinguishing system with the detection and alarm linkage during fire extinguishing task execution are determined according to the distribution loss amount; and determining a fire extinguishing cooperation efficiency index when the energy storage system carries out efficient cooling and fire extinguishing control by a fire extinguishing agent according to the spraying adaptation amount and the cooling compensation characteristics, and carrying out distribution control on a fire occurring in the energy storage system according to the fire extinguishing cooperation efficiency index. According to the invention, dynamic joint control adjustment can be carried out when the fire extinguishing strategy and resource allocation adjustment are delayed, so that the response efficiency of the fire extinguishing system is improved.

The invention discloses a power distribution cabinet with fire early warning and fighting functions, which comprises a power distribution cabinet main body, a storage ceiling is arranged at the top of the power distribution cabinet main body, a carbon dioxide fire extinguisher and a loading seat are arranged in the storage ceiling, and the loading seat is arranged at the top of the power distribution cabinet main body. The carbon dioxide fire extinguisher is erected at the top of the loading seat. The intelligent power distribution cabinet integrates efficient fire early warning and automatic fire extinguishing functions, environment changes in the power distribution cabinet are monitored in real time through the fire detector, once a fire sign is detected, an audible and visual alarm is triggered immediately, attention is attracted rapidly, emergency response is started, and meanwhile an automatic fire extinguishing mechanism is triggered; the power distribution cabinet can rapidly and effectively extinguish a fire in the cabinet body, and the design integrating early warning and extinguishment not only significantly shortens the fire response time, improves the fire extinguishing efficiency, but also reduces the risk of manual operation, and provides comprehensive and reliable guarantee for the safety of the power distribution cabinet and the surrounding environment of the power distribution cabinet.

The fire extinguishing device comprises a pressure storage tank filled with compressed inert gas, the pressure storage tank is communicated with one end of a one-way valve through an air supply pipe, the other end of the one-way valve is communicated with one end of a telescopic inflation pipe, and a flexible fire detection pipe is arranged on the outer side of the telescopic inflation pipe. One end of the flexible fire detection tube is hermetically connected with the surface of the one-way valve, the other end of the flexible fire detection tube is closed, a bag body filled with a liquid fire extinguishing agent is arranged in the flexible fire detection tube, and a pressure relief membrane is arranged at the position where the one-way valve is communicated with the telescopic inflation tube; when the fire extinguishing device is not started, the bag body is filled with a liquid fire extinguishing agent, and one side of the bag body tightly presses the telescopic inflation pipe in the contraction state to one side of the pressure relief membrane. According to the utility model, the spraying process of the liquid fire extinguishing agent can be accelerated, the fire extinguishing efficiency is improved, and the thermal runaway phenomenon of the battery can be continuously inhibited.

The invention belongs to the technical field of fire-fighting quadruped robots, and particularly relates to a fire-fighting fire extinguishing system suitable for a quadruped robot, which comprises a quadruped robot, a double-layer mounting frame is arranged on the upper part of the quadruped robot, and an industrial personal computer, an edge computer and a voltage stabilizer are mounted on the first layer of the double-layer mounting frame; a direct-current power source, a switch, a positioning camera and a fire extinguisher are installed on the second layer of the double-layer installation frame, a supporting frame is further installed at the end of the second layer of the double-layer installation frame, a laser radar is arranged at the upper end of the supporting frame, and a binocular depth camera is installed on the side of the upper end of the supporting frame. The outlet end of the fire extinguisher is connected with a first pipeline, the end of the first pipeline penetrates through the partition plate of the double-layer mounting frame to be connected with a pressure stabilizer, and the output end of the pressure stabilizer is connected with a spray pipe. The unmanned aerial vehicle can keep excellent maneuverability and stability, can stably work in a high-temperature environment, effectively resists smoke interference, and easily deals with various complex terrains.

The telescopic fire-fighting robot chassis is used for carrying a fire monitor and comprises a driving device, a box body and a fixing device, the fire monitor is placed on the box body, the driving device is connected with the box body to drive the box body and the fire monitor to move, and the fixing device is connected with the driving device to limit the driving device; the chassis is provided with a standing posture and a prone posture; the driving device comprises a folding frame, driving wheels and a folding driving mechanism, and the folding driving mechanism controls the folding frame to be unfolded or folded so that the chassis can be switched between the standing posture and the prone posture. The fixing device comprises a limiting moving mechanism and a ground nail. The storage size is reduced through chassis state switching, meanwhile, the stability during operation is enhanced, fire extinguishing rescue can be conducted along with the fire fighting truck, the space utilization rate in the fire fighting truck is increased, and the fire extinguishing efficiency and the control effect are further improved.

The utility model discloses a fire extinguisher with high protective property, which comprises a fire extinguisher body, a connecting pipe and a nozzle, the connecting pipe is communicated with the fire extinguisher body, substances in the fire extinguisher body can be sprayed out from the nozzle, and a protective component is arranged at the nozzle of the connecting pipe. One side of the protection assembly extends towards the side opposite to the nozzle to form a fireproof part, the fireproof part can prevent flames from burning hands during fire extinguishment, the fire can be blocked through the protection assembly, a user is prevented from burning the hands, and then the fire can be accurately aligned to a fire source for fire extinguishment. In addition, due to the arrangement of the protection assembly, certain psychological suggestions can be given to a user of the fire extinguisher, so that the fear or fear of flames is reduced, the fire extinguishing efficiency is improved, and the flames are extinguished in time.

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 discloses a data server system based on numerical simulation, and relates to the field of aeronautical data analysis, two sides of a data cabinet body are both provided with fire extinguishing assemblies, two sides of the data cabinet body symmetrical along a longitudinal axis are both provided with grooves, the plurality of grooves are linearly and uniformly distributed along the longitudinal axis of the data cabinet body, and the data cabinet body is provided with a plurality of fire extinguishing assemblies. The data cabinet body is fixedly connected with a plurality of cooling fans, the cooling fans correspond to the grooves, and the interiors of the grooves are each slidably connected with a sealing assembly. The data cabinet has the advantages that the spray head can rotate by 360 degrees without a dead angle to extinguish fire in the data cabinet body, fluoride can be filtered by multiple layers of filtering assemblies through the filtering assemblies and the spraying assemblies, and the filtering assemblies can operate normally no matter which layer of the data cabinet body is on fire; and through mutual cooperation of the limiting assembly and the spraying assembly, each layer can extinguish fire independently, accurate fire extinguishment is achieved, and the fire extinguishment efficiency is improved.

The invention discloses a fire extinguishing method for a low-boiling-point flammable liquid storage tank. Fire control and cooling: applying high-stability compressed air foam to quickly control the fire of the low-boiling-point flammable liquid aiming at the fire of the low-boiling-point flammable liquid storage tank, and covering the surface of the low-boiling-point flammable liquid to form a foam blanket, so that the liquid is gradually cooled until the boiling point of the low-boiling-point flammable liquid is lower than the boiling point of the low-boiling-point flammable liquid; only oil steam and residual flames on the surface of the foam blanket remain; fire extinguishing: quickly spraying and releasing a dry powder extinguishing agent aiming at low-boiling-point flammable liquid oil steam residual flames on the surface of the foam blanket, and completely extinguishing the oil steam residual flames on the surface of the foam blanket by utilizing the excellent chemical inhibition fire extinguishing performance of the dry powder extinguishing agent; and after the fire of the low-boiling-point flammable liquid storage tank is completely extinguished, high-stability compressed air foam is continuously applied, a foam blanket is formed on the surface of the low-boiling-point flammable liquid, the low-boiling-point flammable liquid is continuously cooled, and reburning is effectively prevented. The fire extinguishing method is very efficient for extinguishing a low-boiling-point flammable liquid fire source.

The utility model relates to the field of automobile fire-fighting equipment, and particularly discloses a movable automobile intelligent fire extinguishing device which comprises a fireproof cover, a fire-fighting sprayer, two lifting assemblies and a telescopic arm, the bottom of the fireproof cover is provided with an opening, the lower end of the fireproof cover is provided with a lower fixing frame, and the upper end of the fireproof cover is provided with an upper fixing frame. The bottom of the fireproof cover is connected with the lower fixing frame, the top of the fireproof cover is connected with the upper fixing frame, the fireproof cover is driven by the lifting assemblies to be folded on the lower fixing frame or unfolded to form a closed space, the telescopic arm is located between the two lifting assemblies, and the two ends of the telescopic arm are connected with the lower fixing frame and the fire fighting truck respectively. The fire-proof cover is combined with a fire fighting truck, the fire-proof cover can be used for isolating an on-fire automobile from surrounding automobiles or equipment, fire spreading is avoided, meanwhile, a water pool can be formed in the fire-proof cover to immerse a battery, the final fire extinguishing purpose is achieved, and compared with a water gun fire extinguishing mode, the fire extinguishing efficiency can be improved, and fire extinguishing safety can be ensured; and water resources are greatly saved.

The invention belongs to the technical field of fire rescue equipment, and particularly relates to an automatic fire extinguishing device for a fire rescue quadruped robot and a fire extinguishing method of the automatic fire extinguishing device, which are combined with a flexible moving system of the quadruped robot, realize accurate injection and effectively control fire spreading through real-time detection of fire source position information by a visual identification module. Compared with a traditional manual fire extinguishing mode, the device can automatically execute the fire extinguishing task in the dangerous environment, the risk of firefighters is remarkably reduced, and the rescue safety is improved. And quick response to a fire source and efficient fire extinguishing are realized. Through the communication part, communication with an external terminal is kept in real time, an instruction is received, image information collected by the visual identification module is returned, and efficient unmanned fire extinguishing is achieved. The overall structural design is compact, operation is easy and convenient, good environment adaptability is achieved, fire extinguishers of different sizes are supported, efficient operation can be conducted in various complex fire-fighting scenes, and therefore the safety and efficiency of the fire extinguishing task are improved.

The utility model provides a fire extinguishing device which comprises a shell, a connecting piece, a firing pin assembly and a storage bottle, a shell mounting opening is formed in the shell wall of the shell, and a shell cavity is formed in the shell; the connecting piece is arranged at the shell mounting port, and a connecting piece channel is formed in the connecting piece; a connecting piece through hole communicated with the connecting piece channel and the shell cavity is formed in the side wall of the connecting piece; the firing pin assembly comprises a firing pin arranged in the connecting piece channel. A bottle opening of the storage bottle is arranged at one end of the connecting piece channel; when the fire extinguishing device is in a non-working state, the sealing piece in the connecting piece seals the connecting piece through hole, the bottle sealing piece seals the bottle opening, and the storage bottle is not communicated with the shell cavity; the path is sealed, and sealing is tight; when the fire extinguishing device is in a working state, the firing pin punctures the bottle sealing piece, and stored objects in the storage bottle can enter the connecting piece channel; when the stored material flows through the connecting piece through hole, the sealing piece in the connecting piece is separated from the connecting piece through hole, the stored material enters the shell cavity through the connecting piece through hole, the stored material flows smoothly, and the fire extinguishing efficiency is high.

The invention belongs to the technical field of fire extinguishing agents, and particularly relates to an environment-friendly foam fire extinguishing agent based on a hydrocarbon / organic silicon compound system and a preparation method of the environment-friendly foam fire extinguishing agent. The fire extinguishing agent comprises the following components in percentage by mass: 4%-8% of dodecyl glycoside APG0810, 7%-10% of cocamidopropyl betaine CAB, 3%-5% of an organosilicon surfactant Dow Corning OFX-5211, 0.2%-0.5% of nano boron nitride, 0.2%-0.4% of xanthan gum, 1%-4% of a cosolvent, 3%-10% of an antifreeze agent and the balance of water. The total amount of the dodecyl glycoside APG0810 and the cocamidopropyl betaine is not less than 13%. The environment-friendly foam extinguishing agent does not contain perfluorooctane sulfonate and perfluorooctanoic acid which are difficult to degrade, has good stability, and is simple in preparation process, low in preparation cost and suitable for extinguishing B-type oil liquid fire disasters.

The invention provides an AI-based fire water monitor intelligent control system and method, and the system comprises a fire source detection module which is used for recognizing and positioning a main fire source and outputting a recognition result, and the fire source detection module comprises a laser range finder, a dual-light camera and a computer; the control processing module is used for obtaining the recognition result and generating a control instruction in combination with a first algorithm, a second algorithm and a third algorithm, and the control processing module comprises a CPU, an input unit, an output unit, a communication unit and a power module; and the execution module is used for executing angle rotation of the motor according to the control instruction, and the execution module comprises a pitching motor control unit and a rotating motor control unit. According to the AI-based intelligent control system and method for the fire water monitor, the control instruction is generated by obtaining the recognition result and combining the first algorithm, the second algorithm and the third algorithm, rapid and accurate fire source recognition and efficient fire extinguishing control are achieved, and the intelligent level and the fire extinguishing efficiency of the system are improved.

The invention provides a high-low voltage power distribution cabinet capable of improving safety performance, which comprises a cabinet body, a gas storage tank, a communicating pipe, a trigger mechanism and a spray head, a plurality of support beams for installing different elements are arranged in the cabinet body, the gas storage tank is arranged on the cabinet body and is used for blowing and cooling the elements in the cabinet body, the communicating pipe is positioned in the cabinet body, and the trigger mechanism is used for triggering the spray head. One end of the gas storage tank penetrates out of the cabinet body and is communicated with a gas outlet of the gas storage tank, gas flow of the gas storage tank is accurately blown to each position in the cabinet body through the communicating pipe, the multiple nozzles are arranged and installed on the communicating pipe, the nozzles dispersedly spray gas flowing out of the communicating pipe, and the trigger mechanism is installed between the communicating pipe and the nozzles. And when the temperature or the element in the cabinet body is abnormal, the air storage tank and the nozzle are communicated through the communicating pipe. According to the high-low voltage power distribution cabinet capable of improving the safety performance, through the design of the integrated air storage tank and the communicating pipe, precise blowing cooling of elements in the cabinet body is achieved, and the heat dissipation efficiency is improved.

The invention belongs to the technical field of unmanned aerial vehicle fire extinguishing, particularly relates to a special unmanned aerial vehicle rapid water taking device for fire rescue, and aims at solving the problem that an existing unmanned aerial vehicle cannot achieve rapid water taking. Two water spraying tanks are mounted at the bottom of the storage case, a traction assembly is mounted at the top position in the storage case and comprises two symmetrically mounted traction rope rollers, traction ropes are wound in the traction rope rollers, and water taking tanks are hung at the bottoms of the two traction ropes; a water taking tank hanging spring is fixed to the top of the water taking tank, and the traction rope is fixed to a disc on the top of the water taking tank hanging spring. During water drainage and fire extinguishment, the lifting screw rod controls lifting of the lifting ring, angle adjustment of the nine water drainage swing blocks is achieved, the angle of water drained from the top during fire extinguishment can be adjusted, and the fire extinguishment area is adjusted according to the size of a fire.

The invention relates to the technical field of fire-fighting equipment, and discloses a cabinet type heptafluoropropane gas fire extinguishing device which comprises a cabinet body, and a tank body is mounted in the cabinet body; the spraying assembly is used for spraying heptafluoropropane gas; the anti-blocking assembly is used for preventing the pipeline from being blocked; the cooling assembly is used for preventing the tank body from being overheated when a fire disaster occurs; a front door is mounted on the front side of the cabinet body, a front plate is mounted on the front side of the cabinet body, a mounting groove is formed in the front plate, a bottle head valve is mounted at the top of the tank body, and an electromagnetic valve is connected to the top of the bottle head valve. Through the arrangement of the spraying assembly, when a fire breaks out indoors, a rotary spraying head can automatically swing left and right in a reciprocating mode through impact force generated by heptafluoropropane gas, the spraying range is expanded through left-right reciprocating swing, and the coverage area of the heptafluoropropane gas is enlarged; and the problem that a local fire source cannot be covered due to injection in a fixed direction is avoided.

The utility model relates to the technical field of automatic fire extinguishing, and discloses a fire extinguishing device applied to industrial and mining vehicles and capable of realizing partition protection and repeated release, which comprises a fire extinguishing agent tank body, an inflation inlet is arranged on the fire extinguishing agent tank body, a discharge pipe is arranged on one side adjacent to the inflation inlet, and a main electromagnetic valve is mounted on the discharge pipe. The discharge pipe is connected with two spray head assemblies through pipelines, and the pipelines on the two spray head assemblies are provided with a first-area electromagnetic valve and a second-area electromagnetic valve respectively. The fire extinguishing device adopts the electromagnetic valve and the spray head assembly, fire extinguishing is performed in a targeted manner, waste is reduced, and efficiency is improved. Due to the multi-release design, the fire extinguishing agent can be released again when single-time fire extinguishing does not occur, and the effect is enhanced. Remote control is achieved through the control assembly, and the fire extinguishing process is more intelligent and automatic. The point-type / line-type temperature sensing detector monitors the temperature in the vehicle in real time, and a fire extinguishing device is started in time to prevent fire disasters when abnormity is found. The fire extinguishing device has the advantages of partitioned protection, repeated release, intelligent control and the like.

The utility model relates to a heptafluoropropane fire extinguishing device capable of intelligently adjusting a fire extinguishing angle. The heptafluoropropane fire extinguishing device comprises a tank body, the closable angle adjusting assembly is connected with the tank body in a fixed penetrating mode, the closable angle adjusting assembly is used for adjusting the chemical spraying direction during fire extinguishing, and the closable angle adjusting assembly comprises a telescopic rod, a first sleeve, a fire extinguishing pipe, a second sleeve and a motor; the telescopic end of the telescopic rod is connected with the side wall of the first sleeve through a hinge, the fire extinguishing pipe is fixedly arranged in the first sleeve in a penetrating mode, the side wall of an end opening of the fire extinguishing pipe is fixedly sleeved with the second sleeve, the side wall of the second sleeve is fixedly connected with an output shaft of the motor, and the spot type infrared detector is fixedly arranged on the side wall of the second sleeve. Different fire extinguishing angles can be fully adjusted according to an ignition point, meanwhile, the used fire extinguishing device can be automatically closed and recycled, and the safety of the fire extinguishing device is guaranteed.

The invention provides a lithium battery two-component fire extinguishing agent and a fire extinguishing composition adopted by the lithium battery two-component fire extinguishing agent. The fire extinguishing composition provided by the invention is prepared from the following raw materials in parts by weight: 1 to 2 parts of guar gum, 2 to 3 parts of polyvinyl alcohol, 3 to 4 parts of acrylamide, 2 to 3 parts of methacrylic acid, 1.5 to 2 parts of a framework supporting material, 1.3 to 2.5 parts of a cross-linking agent and 0.2 to 0.3 part of an initiator. The fire extinguishing composition provided by the invention has a stable three-dimensional structure, evaporation of water in the structure can adsorb a large amount of heat, and the heat is attached to the surface of a battery to form carbon deposition along with reduction of the evaporation volume of the water, so that the effects of isolating air and obstructing combustion are achieved, the flame retardance can be improved, and re-combustion can be prevented; the high polymer consumes combustible gas in the process of burning and heating to form carbon, so that the burning reaction is prevented. The fire extinguishing hydrogel or the double-component fire extinguishing agent comprising the water-based component and the hydrogel component can be prepared from the water-based fire extinguishing agent, and the water-based fire extinguishing agent and the hydrogel component have multiple synergistic fire extinguishing effects on the lithium battery, so that efficient fire extinguishing of the lithium battery is realized.

The power distribution cabinet with the automatic fire extinguishing function comprises a cabinet body and a moving plate, the upper surface of the cabinet body is fixedly connected with a protective shell, an air storage tank is fixedly connected in the protective shell, air outlet pipes at the two ends of the air storage tank are communicated with a flow dividing groove formed in the upper surface of the cabinet body, and air spraying holes are symmetrically formed in the bottom of the flow dividing groove. Meanwhile, exhaust holes are symmetrically formed in the bottom in the cabinet body, the movable plate is slidably connected to the side face in the cabinet body through a limiting plate, vent grooves are correspondingly formed in the positions, opposite to the heat dissipation grooves, of the surface of the movable plate, through holes are formed in the side face of the limiting plate, and limiting rods are slidably connected into the through holes through sleeved second springs. Through cooperation of the movable plate, the limiting plate, the limiting rod, the guide rod, the third spring and the transverse plate, when a fire occurs in the cabinet body, the movable plate can move under the action of the gas storage tank, then the heat dissipation grooves of the cabinet body are closed, a closed area can be formed in the cabinet body, and therefore the fire behavior is effectively controlled, and the fire extinguishing efficiency is improved.