119results about How to "To achieve the purpose of extinguishing the fire" patented technology

The invention discloses a comprehensive fire extinguishing device for a container type lithium ion battery energy storage system. The comprehensive fire extinguishing device comprises a base, whereina box body is fixedly connected to the upper end of the base, a plurality of lithium ion batteries are arranged at the inner bottom of the box body, a plurality of battery protective covers are arranged at the inner bottom of the box body, the battery protective cover are arranged on the outer walls of the lithium ion batteries in a sleeving mode, a water storage cavity is formed in the box body,a square groove is formed in the base, a plurality of through holes communicating with the interior of the square groove are formed in the inner bottom of the box body, a channel communicating with the square groove is formed in the base, the channel communicates with the interior of the water storage cavity, and a first water pump is arranged on the inner wall of the square groove. According to the comprehensive fire extinguishing device for the container type lithium ion battery energy storage system, the temperature in the box body is detected through a temperature sensor, when the temperature in the box body rises to the dangerous temperature, a second water pump is started through a first PLC module, water in the water storage cavity is pumped into a water outlet pipe and is sprayed out by spray holes in a spray head, and then the fire extinguishing treatment in the box body can be realized.

The invention discloses a manufacturing method and a coating of a glass fiber fire blanket. A water-soluble mixed material is adopted to coat glass fiber base cloth in a dipping coating mode, so that a layer of dense fireproof coating is formed on the surface of the glass fiber base cloth, the surface of the coated glass fiber fire blanket is soft and airtight, flame can be isolated from fire, and thus the purpose of fire extinguishment is achieved. Meanwhile people escaping from fire can be protected by the glass fiber fire blanket as human bodies are prevented from damage caused by flame. When being used as a fireproof curtain, the glass fiber fire blanket can effectively prevent diffusion of flame, and has the characteristic of wide use range.

The invention discloses an emergency safety device for isolating a mine disaster. The device comprises a disaster inducing device, a disaster isolating airbag, an airbag bracket, a high-pressure air pipe and a high-pressure water pipe, wherein the disaster inducing device respectively consists of a steel wire rope, a pulley and a water tank; the disaster isolating airbag consists of an outer high-pressure inflatable airbag and an inner water-filling bag; the inner bag and the outer bag are connected by a steel wire belt; the airbag bracket consists of a top beam and a bracket which are connected by a bearing; the disaster isolating airbag is fixed to the airbag bracket. When the mine disaster occurs, the inducing device is started, the airbag bracket falls down, the high-pressure air pipe and a water pipe valve are opened, high-pressure air in the high-pressure air pipe fills the outer layer of airbag; the outer layer of airbag is expanded, the high-pressure water pipe fills water into the inner bag, the airbag is formed in a tunnel to prevent expansion of a disaster range, and the mine disaster is limited in a limited range. The device provided by the invention has the beneficial effects that the occurrence of the mine disaster can induce start of the device, the range of the mine disaster is reduced, and the device is simple in mounting.

The invention discloses an unmanned aerial vehicle high-altitude fire extinguishing device that comprises a fire truck; the fire extinguishing device further comprises an unmanned aerial vehicle. A window breaking structure or a fire fighting structure is carried on the unmanned aerial vehicle. The H-shaped window breaking structure comprises two vertical plates and a horizontal plate; a window breaker and four vacuum suckers are arranged on the H-shaped window breaking structure, the four vacuum suckers are located at the four vertexes of the vertical plates of the H-shaped window breaking structure respectively, and the window breaker is located in the center of the horizontal plate of the H-shaped window breaking structure. The fire-fighting structure comprises a composite pipeline, thecomposite pipeline comprises a fire-fighting water pipe and an unmanned aerial vehicle power supply cable, a folded plate is arranged above the composite pipeline, and a fixing device is installed onthe folded plate. The H-shaped window breaking structure or the fire-fighting structure is carried through the unmanned aerial vehicle, the two structure are matched with each other, so use is flexible, various fire behaviors in high-rise buildings can be dealt with, and after the H-shaped window breaking structure is used for breaking outer-layer glass of the buildings, the fire-fighting structure is carried for fire extinguishment.

The invention discloses a fireproofing odor-removing plastic garbage can in the technical field of plastic products. The fireproofing odor-removing plastic garbage can comprises a PVC weather-proof plastic can body, an inflaming retarding plastic can cover is arranged at the top of the PVC weather-proof plastic can body, the PVC weather-proof plastic can body is connected with the left side of theinflaming retarding plastic can cover through a rotating shaft, the right wall of the inflaming retarding plastic can cover is provided with a handle, a water storing cavity is arranged on a body ofthe inflaming retarding plastic can cover, and a water injection hole is formed in the top of the inflaming retarding plastic can cover and communicates with the water storing cavity. According to thefireproofing odor-removing plastic garbage can, a control device controls a smoke sensor to detect smoke in the garbage can, when the concentration of the smoke in the garbage can is too high, a solenoid electric valve is controlled to be opened by the control device, fire fighting water stored in the water storing cavity is released, flames in the garbage can are extinguished, and the aim of flame extinguishing is achieved; and the fire fighting water can be added regularly through a plug cover and the water injection hole.

The invention discloses a safety fireproof cooling wiring conduit. The safety fireproof cooling wiring conduit is characterized by comprising conduits a, a conduit b and a connecting plug, wherein the connecting plug is connected with the conduits a and the conduit b; each of the conduits a and the conduit b comprises a conduit body and a protective cooling layer; each protective cooling layer is arranged on an outer ring of each conduit body; a plurality of wiring fireproof boxes are also connected between the conduits a when the conduits a are connected in parallel; each wiring fireproof box comprises a nitrogen tank and an air faucet; each air faucet is connected with the corresponding nitrogen tank; and an electromagnetic valve for controlling each air faucet to be closed is also arranged on each nitrogen tank. The safety fireproof cooling wiring conduit is simple in structure; and heat generated in the electrifying process of an electric wire in the wiring conduit can be emitted, so that the damage to the electric wire caused by heat accumulation and a fire caused by the heat accumulation are avoided. A blackdamp is generated in the overall conduit in the fire, so that the fire is prevented from spreading to the outside of the conduit; and a relatively big fire is further prevented.

The invention relates to aqueous solution with fine water mist fire extinguishment additive, with the quality percentage of all components as below: ammonium chloride 0 percent to 1 percent, polyvinyl alcohol 0 percent to 1 percent, sodium acetate 0 percent to 0.5 percent, surface active agent 0.01 percent to 0.25 percent, urea 0 percent to 1 percent, rust preventive 0.01 percent to 0.25 percent, and the rest is water. The aqueous solution can improve the fire extinguishing efficiency of the fine water mist and effectively prevent after-combustion of inflamers; has little corrosion to equipments and instruments; basically has no pollution to fire scenes; is high-efficiency, stable and clean; the raw materials of all components are easy to be obtained; has stable performance; is basically nontoxic and low in cost; and has low consumption.

The invention discloses a fireproof switch cabinet in the field of fire prevention of switch cabinets. The fireproof switch cabinet comprises a protection box, a ventilation window and a sliding groove are formed in the front end face of the protection box, a rack is slidably connected into the sliding groove, a first spring is fixedly connected to the lower end of the rack, and a stop block is fixedly connected to the upper end of the rack; a first square groove is formed in the side end face of the ventilation window, a fixing shaft is rotationally connected into the first square groove, anda gear and a shutter are fixedly connected to the circumferential surface of the fixing shaft; a storage groove is formed in the upper top end face in the protection box and internally and fixedly connected with a second spring, the upper end of the storage groove is in threaded connection with a sealing cover, and the lower end of the storage groove is hinged to an opening-closing plate. A double-thread lead screw is rotationally connected into the protection box and is in threaded connection with a first threaded block and a second threaded block, a supporting rod is fixedly connected to the front end of the first threaded block, a driven wheel is fixedly connected to the front end of the double-thread lead screw, the structure is simple, the manufacturing cost is low, and fire diffusion can be prevented only through simple operation.

The invention discloses a transformer cabinet with a fire-extinguishing insurance function. The transformer cabinet comprises a transformer cabinet shell, wherein a transformer coil is arranged in the transformer cabinet shell; a fire-extinguishing system is also arranged above the inside of the transformer cabinet shell and is fixed on the side wall in the transformer cabinet shell; a fire-extinguishing material accommodating case is also arranged on the external side wall of the transformer cabinet shell and is connected with the fire-extinguishing system through an output pipe; an electromagnetic switch valve is arranged on the output pipe outside the fire-extinguishing material accommodating case and is connected with automatic induction control equipment through a control line; and the automatic induction control equipment is arranged on the fire-extinguishing system. The inside of the transformer cabinet is monitored by a smoke sensing technology and an infrared imaging technology; and when dense smoke or a small fire is generated, the fire-extinguishing material accommodating case can be timely opened, and the internal fire-extinguishing material is released, so that a liability accident is avoided.

The invention discloses a flame-retardant and compression-resistant cable comprising more than one fixing part. An elastic fire extinguishing assembly is fixedly arranged between the adjacent fixing parts. The outer part of the elastic fire extinguishing assembly is provided with more than one outer protection piece. More than one outer protection piece is arranged around the fixing parts at equaldistances in one circle and spliced with each other to form a circular outer sheath layer. Two chutes are respectively arranged on the end surfaces of the two sides of the fixing parts. A slide blockis arranged on the end surface of the outer protection piece facing the chutes. The outer protection piece is slidably buckled into the chutes through the slide blocks arranged on the two sides, anda group of spring is arranged in each chute. A through groove is arranged on the fixing part located between the two chutes. The cable adopts a different installation structure so that the cable has good compression-resistant and buffering capacity and better fire extinguishing performance and greatly prolongs the service life of the cable.

The invention discloses an anti-theft fire-extinguishing transformer device including a first support, a second support, a transformer, a storage battery, a camera and a display screen. The transformer includes a coil rack coiled with a coil, a magnetic core arranged in a central through hole of the coil rack, a transformer housing, an accommodation room arranged in the transformer housing and used for accommodating fire-extinguishing devices, a heat expansion piece arranged on the accommodation room, a thin sheet arranged on the accommodation room, venting ports arranged on two sides of the transformer housing, closing assemblies arranged beside the venting ports and capable of rotating for closing the venting ports, and a temperature sensor arranged in the transformer housing. According to the utility model, when a fire breaks out, the heat expansion piece expands after being subjected to heat. A dry powder extinguishing agent squeezes the thin sheet until the thin sheet goes broken. Since the external air pressure is lower than air pressure in the accommodation room, the dry powder extinguishing agent is sprayed and extinguishes the fire, so that a fire extinguishing aim is realized. At the same time, the cost is comparatively low.

The invention discloses a high-voltage power distribution cabinet which comprises a cabinet body, a floating plate transversely penetrates through the interior of the cabinet body, the two ends of the floating plate extend out of the cabinet body, a first mounting cavity is formed in the upper end of the floating plate, a second mounting cavity is formed in the lower end of the floating plate, and an expansion air bag is mounted in the second mounting cavity. More than one power distribution module is mounted on the floating plate; after the floating plate is ejected by the expansion air bag, each power distribution module extends into the first mounting cavity, a fixed plate is arranged on the bottom surface of the first mounting cavity, an open cavity with the same shape as the power distribution module is formed in the fixed plate corresponding to each power distribution module, and each power distribution module penetrates through the open cavity and extends into the first mounting cavity in a sealed manner; and a floating cover plate is arranged on the top surface of the first mounting cavity. According to the power distribution cabinet, various modes such as closed space, power distribution module isolation and physical contact fire extinguishing are utilized, the very good fireproof performance is achieved, and the use safety of the power distribution cabinet is improved.

The invention provides a double-fluid jet water mist fire gun belonging to the technical field of firefighting extinguishing apparatus. The fire gun is formed by a fire gun body (1), a gas-liquid supply bag (2), a pressure gas delivering tube (3) and a liquid delivery tube (4), wherein the fire gun body (1) is a steel body in gun shape; a gas incoming opening (11) and a liquid incoming opening (12) are formed side by side in the left and the right below the gun grip, and the gas delivery tube (3) and the liquid delivery tube (4) are connected to the gas-liquid supply bag (2); according to the invention, incipient fire in a spacecraft can be inhibited and extinguished by water mist ejected by the fire gun in the low-gravity environment, so that resource of extinguishing agent can be saved, and the fire gun is convenient to use and is flexible.

The invention discloses a mica compound type flame retardant foaming agent. The technical scheme is characterized in that the mica compound type flame retardant foaming agent comprises sericite powder, attapulgite potter clay powder provided with an air purifying function, hydrogen peroxide, magnesium hydratefatty alcohol-polyoxyethylene ether sodium sulfate, superfine polyvinyl alcohol powder, simethicone and water. Paste ingredients of the mica compound type flame retardant foaming agent are stirred into the paste, and stirred into a finished product of the mica compound type flame retardant foaming agent. After the mica compound type flame retardant foaming agent is added with water and stirred at a high speed, porous foam slurry is formed, so that a combustible material can be isolated from being contacted with the air quickly, and flame retardance and extinguishment are achieved. A product produced by using the mica compound type flame retardant foaming agent has the flame retardance, thermal insulation and soundproof effects, as well as the air purifying function; and the mica compound type flame retardant foaming agent is suitable for producing a light board, a light wall body and products for flame retardance, extinguishment, and noise damping and reduction.

The present invention provides a fire-fighting bomb. It includes main body, upper mouth-sealing cover and lower mouth-sealing cover of said main body. In the space of inner cavity of main body a small cylinder is mounted, between external wall of said small cylinder and internal wall of said main body a fire-fighting powder chamber in which the fire-fighting powder is held is formed; the inner cavity of said small cylinder is an explosive chamber in which the explosive material is held, the upper and lower two ends of said explosive chamber are equipped with seal mouth for sealing said explosive material, and a detonating cord is extended from the upper seal mouth. Besides, said invention also provides the application method of said fire-fighting bomb.

The invention discloses a fireproof protection system based on a gypsum-based steel structure, and relates to the technical field of fireproof protection systems. The fireproof protection system comprises an outer frame, supporting legs are fixedly connected to both sides of the bottom of the outer frame, a vertical plate is fixedly connected between the top and the bottom of the inner wall of theouter frame, a moving device is fixedly connected to the left side of the vertical plate, a top base is fixedly connected to the bottom of the moving device, and connection rods are rotatably connected to both sides of the bottom of the top base. By means of the fireproof protection system based on the gypsum-based steel structure and a protecting method of the fireproof protection system, the purpose of extinguishing the fire for the steel structure is achieved, fire of different positions around the steel structure can all be extinguished, and the damage of the steel structure is prevented,which makes it convenient for people to timely escape and rescue others; meanwhile, the steel structure is better protected, and people conveniently and timely escape and rescue others; meanwhile, automated control is achieved, labor management is not needed, people conveniently use the fireproof protection system, and the practicability is high.

The invention discloses a dry powder extinguishing agent which comprises the following components of, by weight, 10-15% of sodium bicarbonate, 10-15% of potassium salt, 10-15% of ammonium dihydrogen phosphate, 8-10% of mica powder, 5-8% of white carbon black, 8-10% of silicone oil, 1-3% of magnesium hydroxide, 1-3% of aluminum hydroxide, 20-30% of expanded perlite powder, 6-12% of calcium carbonate, 3-5% of sodium chloride and 1-5% of paraffin. In the dry powder extinguishing agent, in addition to the conventional ammonium dihydrogen phosphate and white carbon black, the expanded perlite powder which is of a honeycomb structure is also added and can serve as a carrier of a dry powder fire extinguishing material, and can be filled with a large amount of fire extinguishing dry powder; and when the expanded perlite carrying other components is sprayed onto an ignition point, the expanded perlite is further crushed at a high temperature, and covers the ignition point together with other materials to form a compact fire extinguishing layer, thereby achieving the purpose of extinguishing fire.

The invention discloses a fire extinguishing device for expanded polystyrene, and belongs to the technical field of fire fighting equipment. The fire extinguishing device comprises an induction mechanism and a fire extinguishing mechanism, wherein the induction mechanism comprises a sliding plate, a sliding cavity and a platform with an open top and a hollow interior. The sliding plate is vertically and slidably connected in the platform. The fire extinguishing mechanism comprises a support frame, a motor, a fire extinguishing cover and a pulley rotatably connected to the top of the support frame. The pulley is wound with a rope, and one end of the rope is fixedly connected to the top of the fire extinguishing cover. The fire extinguishing cover is used for covering the expanded polystyrene, the motor comprises a driving shaft, the driving shaft is fixedly connected with the other end of the rope, and a conducting loop is formed among the motor, a first carbon rod pole and a second carbon rod pole. The fire extinguishing cover can cover the expanded polystyrene on fire and can extinguish the fire quickly.

The invention discloses a transformer box shell capable of limiting fire, comprising: a transformer box shell, an air suction pump placed on the top wall of the substation shell, a ventilating window arranged at the side wall of the substation shell, and a device for closing the ventilating window The closing plate is fixed on the telescopic piece on the closing plate. The invention provides a transformer box shell capable of limiting the fire. The invention senses the temperature inside the transformer box through a stabilizing sensor. If the temperature is within the fire range, the telescopic element will be activated to close the ventilation window, and then the air pump will be activated to close the box. The air inside is pumped out to form a vacuum state, so as to control the fire and achieve the purpose of extinguishing the fire.

The invention relates to the technical field of fire-fighting equipment, in particular to a solid fire-fighting system in a closed cabinet body. The system involves the cabinet body, wherein a sandboxis arranged at the top of the cabinet body, a plurality of discharging funnels which are uniformly and equidistantly and linearly arranged are connected to the bottom of the sandbox, a discharging baffle is arranged at a discharging port of each discharging funnel, each discharging baffle adopts an electromagnetic baffle valve, a smoke sensor and a temperature sensor are arranged on the inner wall of the cabinet body, and a controller and a fire-fighting alarm bell are arranged on the outer wall of the cabinet body. According to the system, fine sand in the sandbox flows into the closed or microporous cabinet body to realize fixed-point fire extinguishing, and the fire influence range is narrowed in the closed or microporous cabinet body, so that greater loss is avoided; and an alarm is given while the fire is extinguished, so that operators are prompted to take measures in time to reduce the loss.

The invention relates to the technical field of fire-fighting equipment, in particular to an insulation type fire extinguisher capable of being automatically started through temperature sensing. The insulation type fire extinguisher comprises a tank body and is characterized in that the tank body is provided with an isolation layer, an insulation sheet is arranged in the isolation layer in inserted and filling modes, and a bottle head valve is arranged at the upper end of the tank body in threaded and inserted modes. According to the insulation type fire extinguisher, through a special air sealing box which is mounted in an electric element box or in a high-risk area needing key protection, after gas in the sealing box reaches a certain temperature, the gas in a box body drives an one-wayvalve to perform a series of linkage structure activities to complete starting of the fire extinguisher, so that the purpose of extinguishing fire is achieved, extra manpower assistance or equipment assistance is not needed, and operation is relatively simple; limitation of a mounting area of a fire extinguishing device is strengthened while the fire extinguisher is opened automatically and intelligently, a mounting plate supports various kinds of demounting and mounting, so that the fire extinguisher is always kept in a stable state, and meanwhile, the insulation type fire extinguisher is convenient to use for the second time or even multiple times through an adjusting structure.

The invention discloses a pumice composite flame-retardant foaming agent. The technical scheme of the pumice composite flame-retardant foaming agent has the following key points that the pumice composite flame-retardant foaming agent is composed of pumice powder, attapulgite argil powder having an air purifying function, hydrogen peroxide, aluminium hydroxide, sodium polyoxyethylene fatty alcohol ether sulfate, superfine polyvinyl alcohol powder, simethicone and water; firstly, the paste raw materials of the pumice composite flame-retardant foaming agent are stirred into a paste at first and then the raw materials of the pumice composite flame-retardant foaming agent are stirred into the finished product of the pumice composite flame-retardant foaming agent. A product produced by using the pumice composite flame-retardant foaming agent has the effects of flame retarding, heat preservation, thermal insulation and sound insulation, and also has the air purifying function; and the pumice composite flame-retardant foaming agent is suitable for producing flame-retarding and fire-extinguishing products, light plates, light walls, and sound-attenuating and noise-reducing products.

The invention discloses a novel fire detection extinguisher, belongs to the technical field of fire extinguishers and aims to solve the problem of low fire extinguishing efficiency of a conventional firedetect. The novel fire detection extinguisher comprises a protected device, and further comprises an extinguishant storage bottle, a fixed support and a fastening belt, wherein the extinguishant storage bottle is arranged on the fixed support; the fastening belt is arranged on the extinguishant storage bottle; a bottle neck control valve is mounted at the top end of the extinguishant storage bottle; a first pressure gauge, an electromagnetism actuator, a high-pressure explosion-proof tube and a fire detection tube are arranged on the bottle neck control valve; the fire detection tube is arranged inside the protected device in an S-shaped manner; the high-pressure explosion-proof tube comprises a first high-pressure explosion-proof tube and a second high-pressure explosion-proof tube; the bottle neck control valve is connected to the first high-pressure explosion-proof tube; the second high-pressure explosion-proof tube is connected with a nozzle; an O seal ring is arranged between the second high-pressure explosion-proof tube and the nozzle; the nozzle has an orthohexagnal cross section; a plurality of first spray orifices are formed in the side wall of the nozzle; and a plurality of second spray orifices are formed in the front of the nozzle.

The invention relates to an automatic explosion starting quicksand fire extinguishing device. The automatic explosion starting quicksand fire extinguishing device comprises a quicksand mechanism, a temperature induction automatic starting mechanism and a control system; the temperature induction automatic starting mechanism comprises a temperature induction pipe, a fixing frame, a supporting rod and a fixing cylinder, one end of the fixing cylinder is connected with the fixing frame, the other end of the fixing cylinder is fixedly connected with a sand storage bin I of the quicksand mechanism, the end of the temperature induction pipe abuts against one end of the supporting rod, the end, close to the sand storage bin I, of the fixing cylinder is fixedly provided with a clamping plate, the other end of the supporting rod penetrates the clamping plate to be clamped on a turning plate, a spring is wound around the outer wall of the supporting rod, one end of the spring is fixed to the supporting rod, the other end of the spring abuts against the clamping plate, the temperature induction pipe induces the temperature so as to enable the spring to drive the supporting rod to move, and furthermore, the turning plate opens quicksand so as to achieve fire extinguishing. According to the quicksand fire extinguishing device, the quicksand mechanism, the temperature induction automatic starting mechanism and an electromagnetic automatic starting mechanism are arranged, and therefore when the quicksand fire extinguishing device is used, temperature induction automatic starting is achieved, use is convenient, repeated use is achieved, and the device is energy-saving, environment-friendly, good in fire extinguishing effect, safe, and reliable and saves manpower and material resources.

The invention discloses a method for determining the installation position of a mine disaster blocking emergency refuge device. The installation position of the mine disaster blocking emergency refuge device is obtained through calculation according to the relation between the distance between a gas blasting source and a protected object and the air shock wave overpressure value, and the rationality of the installation position of the mine disaster blocking emergency refuge device is verified through gas blasting flame propagation time, personnel evacuating time and the starting time of the mine disaster blocking emergency refuge device; aiming at a mine flooding accident caused by mine water inrush, the installation position of the mine disaster blocking emergency refuge device for preventing mine water inrush is determined through water level upward rising time, water flow downward pervasion time, the personnel evacuating time and the starting time of the mine disaster blocking emergency refuge device; the reference for determining the installation position of the mine disaster blocking emergency refuge device is characterized in that the personnel evacuating time Tr is longer than the starting time Tz of a photoelectric induction or impact sensor and the mine disaster blocking emergency refuge device, and the starting time Tz of the photoelectric induction or impact sensor and the mine disaster blocking emergency refuge device is not shorter than the maximum value of the flame propagation time TB and the water level upward rising time Ts in the gas blasting process.

The invention discloses a switch cabinet with an automatic fire extinguishing function. The switch cabinet comprises a base, wherein a cabinet body is fixedly arranged above the base, a cabinet door is movably arranged at the left end of the cabinet body, and a smoke sensor and a temperature sensor are arranged in the cabinet body. The occurrence of a fire can be detected by the sensors, when thefire occurs, a starting bottle can be opened through using an electromagnetic valve, and finally a gas storage bottle releases a dry ice fire extinguishing agent, so that the fire extinguishing effectis achieved; in order to avoid the failure of the sensor or the electromagnetic valve and the starting bottle, a dry powder box is arranged on the cabinet body, so that the temperature in the cabinetbody can be rapidly increased in case of fire, an expansion metal block can be heated to expand, a fixing pins are ejected out of a fixing hole by a pushing force generated by expansion, and finallya sealing plate can be ejected open by a spring telescopic rod, so that the purpose of opening the dry powder box is achieved, dry powder comes out of the dry powder box, the purpose of fire extinguishment can be achieved, double fire extinguishment guarantees are achieved, and fire spreading can be effectively avoided.

The invention discloses a ceiling built-in perfluoro(2-methyl-3-pentanone) fire extinguishing system which comprises a bracket and a fire extinguishing assembly. The fire extinguishing assembly is installed on the bracket. The bracket includes a top plate, a bottom plate and a connecting column. The top plate is connected to the bottom plate through the connecting column. Expansion bolts are arranged at four corners of the top plate, the connecting column is connected with the top plate and the bottom plate through bolts, and the bottom plate is provided with an opening. The fire extinguishingassembly includes a storage box, a smoke detection device, a controller, a spray head, a first mixing chamber and a second mixing chamber. The system is used to be installed on a ceiling, the installation and use process is more convenient, and meanwhile, the system has the advantage of good fire extinguishing effect. In addition, the invention further provides a fire extinguishing method. The purpose of extinguishing fire rapidly can be achieved.

The embodiment of the invention discloses a fixed folding ducted fan fire extinguishing system. The system comprises a flying vehicle, a container, power generation equipment, power transformation equipment, a water tank, a high-pressure water pump, a servo winch, a local controller and a fire extinguishing water spray gun. The flying vehicle comprises a working cabin, a vehicle body, six ducted fans, six ducted fan driving motors, six motor bases, a power source and a flying controller. A mooring mode is adopted to supply power to the flying vehicle through power transformation equipment, sothat the flying vehicle can fly for a long time; the size of the ducted fan is far smaller than that of the rotor wing; therefore, the flying vehicle can be very close to the on-fire floor of the high-rise building; the water sprayed by the fire extinguishing water spray gun is provided by the water tank arranged in the container through the water hose in real time, so that the fire point can be jetted for a long time, that is, the flying vehicle can be very close to the fire floor of the high-rise building and jets the fire point for a long time, and the purpose of effectively extinguishing the high-rise fire of the high-rise building is achieved.

The invention provides a pipe gallery flame retardant device. The pipe gallery flame retardant device comprises a smoke sensing device, a pipe gallery air outlet, an exhaust pipe, an exhaust device and a control unit, wherein the smoke sensing device is arranged in a pipe gallery and used for detecting smoke generated in the pipe gallery and sending a flame retardant signal to a control unit whendetecting the existence of smoke; the pipe gallery air outlet communicates with the outside through a gate; the exhaust pipe is arranged on the top of the pipe gallery; the exhaust device is connectedwith the exhaust pipe; and after receiving the flame retardant signal, the control unit controls the gate to be closed to isolate the pipe gallery air outlet from the outside, the exhaust device is started to run and quickly exhaust air in the pipe gallery, and therefore, the fire extinguishing purpose is achieved. When a line in the pipe gallery self-ignites, generated smoke triggers the smoke sensing device, portions communicating with the outside like the pipe gallery air outlet in a fire prevention subarea are blocked after the sensing device sends the signal to the control unit, then theexhaust device is started to quickly exhaust air in the pipe gallery so that the inside of the pipe gallery is lack of oxygen, and then the purpose of fire extinguishing is achieved.

The invention discloses an ultrasonic fire extinguishing device. The ultrasonic fire extinguishing device comprises a barrel body in which an ultrasonic atomizing and spraying device is arranged; the barrel body is provided with a barrel cover matched with the barrel body; a containing cavity is formed among the barrel body, the barrel cover and the ultrasonic atomizing and spraying device; the ultrasonic atomizing and spraying device is provided with a fog outlet capable of spraying fog into the containing cavity; the barrel cover is provided with a gas inlet and a gas outlet; the gas inlet is connected with a draught fan; the gas outlet is connected with a spraying pipe; the ultrasonic atomizing and spraying device generates fog and sprays the fog into the containing cavity; the draught fan blows air into the containing cavity through the gas inlet, and blows the fog in the containing cavity out through the gas outlet; and the spraying pipe is held to make a pipe opening aligned with a fire source, the fog is continuously sprayed onto the fire source, and therefore the fire extinguishing purpose is achieved; and meanwhile, water or other liquid energy is saved, the ultrasonic fire extinguishing device can serve as a standing fire extinguishing device, and in a water shortage area, as long as the ultrasonic fire extinguishing device is prepared in advance, the time for additionally looking for a water source is saved.