67results about How to "Reduce firefighting costs" patented technology

The invention discloses a lithium ion battery fire test cabinet with a self-assembled automatic alarm and fire extinguishment system. The lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system mainly comprises a fire cabinet main body, an automatic alarm system, a battery fixing bracket, a heat source simulation system, a measuring and monitoring system, a fire extinguishing system and a smoke discharging system. By virtue of multi-modulation, the sensitivity and response characteristics of different types of fire detectors (smoke sensing detectors, temperature sensing detectors or integrated smoke and temperature sensing detectors and the like) after the lithium ion battery is fired can be simulated; the lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system is suitable for researching the factors such as the fire extinguishment effects (comprising actual fire extinguishing time and the use amount of fire extinguishing agents and the like) of various gas fire extinguishing agents in lithium ion battery fire, the influence of different fire extinguishing agents on the performance of the lithium ion battery after extinguishing the fire and the like. According to the lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system, a vertical fire extinguishing agent releasing pipeline is self-designed according to a fire cabinet body, so that the fire extinguishing agent can be fully released into a battery cabinet within short time after the battery is fired, thus the fire extinguishing time is greatly shortened, the use amount of the fire extinguishing agent is reduced, the fire extinguishing cost is reduced, and the damage to the lithium ion battery is reduced.

The invention relates to an involute arc spout fire extinguishing sprinkler head of a fire extinguishing device with a mechanical liquid sprinkling fire extinguishing agent, which solves the problem that the existing circular spout groove sprinkler head costs fire extinguishing agent and delays fire extinguishing time. The sprinkler head comprises a sprinkler head body, a bearing and a connecting pipe; the spout groove is involute arc along the radial direction; the spraying angle of B end which is the starting end of the involute arc spout groove 4 is 70-85 degrees, the spraying angle of C end which is the ending end of the involute arc spout groove 4 is 40-45 degrees, and the base radius r of the involute is 10-15mm. The spout groove is in the involute shape, thus the sprayed fire extinguishing agent forms a round cake shape while being sprayed, which is good for fire extinguishing. The sprinkler head is applied to liquid extinguishing agents comprising water, aqueous film forming foam concentrate, and the like. The sprinkler head has the advantages of extinguishing fire in a short time with a few fire extinguishing agents, low fire extinguishing cost, high fire extinguishing efficiency, convenient use, flexible action, saving time and high efficiency, and is applied to oil fire of aerosheds, etc.

The invention discloses a core-shell type composite fire-extinguishing powder and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding refined zeolite with an average particle size of 10 [mu]m or less into a water solution (0.01-0.10 mol / L) containing sodium bicarbonate and potassium bicarbonate / ammonium dihydrogen phosphate, wherein the refined zeolite accounts for 78% to 90% of the weight of the system and the water solution accounts for 8% to 18% of the weight of the system; mechanically stirring the mixture for 4 to 8 hours at a speed of 300 to 600 r / min; carrying out a vacuum freeze-drying treatment on the solution at a temperature of -10 to -30 DEG C under a pressure of 1.3 to 13 Pa, adding silica accounting for 0.5 to 1.05 of the weight of the system and talcum powder accounting for 1.5 to 3.0% of the weight of the system into the obtained powder, and evenly mixing the powder together so as to obtain the target product. The composite fire-extinguishing powder has the advantages of high fire-extinguishing efficiency, cheap and available raw materials, and simple preparation technology, can be directly applied to the conventional dry powder fire extinguishers, and is suitable for various types of fires such as fire on solid substances, fire on flammable gas, fire on liquid, and the like.

The invention provides a closed isolation composition applied to the treatment of a gangue hill and an implementation method thereof, and belongs to the technical field of environmental treatment andmine ecological restoration. The closed isolation composition comprises inorganic substances, a polymer, fiber, an additive and water, the weight ratio of the inorganic substances is 20-75%, the weight ratio of the polymer is 0.2-5%, the weight ratio of the fiber is 0.05-5%, the weight ratio of the additive is 0.05-2%, and the weight ratio of the water is 20-75%; the above materials are mixed according to a certain ratio to prepare a mixed slurry, the slurry is sprayed on the surface of the gangue hill for sealing of the gangue hill and isolation from a vegetation area to completely eliminatethe hazard of the gangue hill, and the disturbance influence of vegetation on the gangue hill is eliminated. The closed isolation layer has the advantages of airtightness, seepage resistance, heat insulation, firmness and durability, the used materials are all environmentally friendly, the construction is simple, the efficiency is high, and the cost is low.

The invention relates to a fire fighting system using superfine dry powder as an extinguishing agent. The fire fighting system comprises two parts, i.e., a delivery subsystem and a control subsystem, wherein parts of the control subsystem are connected with the delivery subsystem through a pipe network of the delivery subsystem; the delivery subsystem comprises an air compressor, a high-pressure gas cylinder, a safety valve, a check valve, the pipe network, a dry powder extinguishing agent spray nozzle and novel superfine monoammonium phosphate extinguishing power; and the control subsystem comprises a detector, an electric valve, an alarm and a fire fighting control center. A using method of the fire fighting system using the superfine dry powder as the extinguishing agent comprises seven major steps. The fire fighting system disclosed by the invention can be widely used for the extinguishment of the pipe network of a large-scale closed building and has an extensive application prospect and practical significance in the technical field of public security fire fighting.

The invention discloses a novel coal ash grouting material, which is composed of specific components by mass: 1 part of coal ash, 2 parts of water, liquid water glass occupying 5% to 10% of the coal ash and sepiolite occupying 2%. to 5%.of the coal ash. Improved coal ash grout has strong adhesion performance on firing articles, can evenly and effectively cover the surfaces of the firing articles, is strong in water-retaining performance and good in fire resistance, can effectively block leakage insulate oxygen to prevent grout from losing, and is low in price, environmental-friendly, good in stability and suitable for pipeline transportation.

The invention discloses a composite powder base fire extinguishing agent and a preparation method thereof, which are characterized in that the vacuum pumping is carried out on 85 to 95 percent of layer double hydroxide with the grain diameter lower than 10mum according to the mass percent of the system to a value lower than 0.01 MPa in a pressure-resistant container, 2-bromine-3, 3, 3-trifluoropropene liquid is filled for soaking the powder, and the materials are stirred for more than 12 hours at a speed of 300 to 600r / min at -5 to 10 DEG C; then, the powder is separated through extraction filtering and is placed for 6 to 10 hours at room temperature, then, 0.8 to 2.2 percent of magnesium stearate with the grain diameter lower than 10mum according to the mass percent of the system is added and is uniformly mixed; the obtained composite powder fire extinguishing agent simultaneously has hydrophobicity and lipophobicity, the moisture-proof performance and the anti-reignition performance are good, the fire extinguishing efficiency is high, the composite powder fire extinguishing agent can be used as the fire extinguishing agent and can also be used as additives of powder extinguishing agents, raw materials have low price and can be easily obtained, the preparation process is simple, and the composite powder fire extinguishing agent is suitable for being used for various fire extinguishers to extinguish various kinds of fire hazards.

A portable atomizing spray fire extinguisher is composed of a fire extinguishing gun, a unit for supplying high pressure to fire-extinguishing chemical, and transmission tubes for fire-extinguishing chemical and compressed air and connected between the said gun and unit. The said gun has a gun body with two channels, a nozzle part and a switch. It features that the fire-extinguishing chemical is atomized and then sprayed out. Its advantages are high fire-extinguishing efficiency, small size, light weight, and low consumption of fire-extinguishing chemical.

The invention relates to an airburst fire-extinguishing bomb which comprises a case, ammunition chambers, fuzes and a safety hood (1). The airburst fire-extinguishing bomb is characterized in that the at least two ammunition chambers are arranged in the case: a projecting ammunition chamber (3) and a main ammunition chamber (9), wherein, a partition plate (4) is arranged between the projecting ammunition chamber (3) and the main ammunition chamber (9) in the case; the partition plate (4) at one side of the main ammunition chamber (9) is internally provided with the fuze (10); the case of the corresponding projecting ammunition chamber (3) part is called as the case (8), and the case of a main ammunition chamber (9) part is called as the case (11); the fuze (2) and the safety hood (1) are arranged at the front of the case (11), and an empennage (7) is arranged at the back of the case (8); and the empennage (7) is provided with a parachute cabin (6) and a vertical parachute (5), wherein, the case (8) and the case (11) are made of a nonmetal material. The airburst fire-extinguishing bomb has the characteristics of reasonable structure, convenient use, low fire-extinguishing cost, fast fire-extinguishing speed, minimized loss caused by forest fire, environmental protection, no damage to surface vegetation, relative safety and the like.

The invention discloses a tunnel-hanging type movable fire extinguishment vehicle. The tunnel-hanging type movable fire extinguishment vehicle comprises a rail, a compartment, a vehicle body and a control mechanism, wherein the rail is installed on a concrete lining of a tunnel and paved in a manner of extending along the direction of the tunnel; the compartment is connected to the guide rail through the vehicle body; the vehicle body comprises a main body connection frame, a drive part, a spring control movement device, a bearing part, a guide part and an anti-inclination part; the control mechanism is used for realizing local control or remote control on the starting, stopping, movement direction and speed of the fire extinguishment vehicle according to a fire condition. The tunnel-hanging type movable fire extinguishment vehicle is small in size, simple in structure, and capable of being remotely operated to rapidly and flexibly arrive at a fire scene to control a fire behaviour in time in case of a fire.

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 particularly relates to a security system for preventing a fire and a fire detecting method, belonging to the technical field of fire alarm. The security system provided by the invention comprises an image analyzing subsystem, a temperature analyzing subsystem and a fire analyzing chip; the image analyzing subsystem transmits image analysis result information to the fire analyzing chip; the temperature analyzing subsystem transmits the temperature change information to the fire analyzing chip; the fire analyzing chip operates to judge the fire by combining the image analyzing subsystem and the temperature analyzing subsystem; the security system also comprise an external fire transmission device; the fire analyzing chip transmits the fire information to the external fire transmission device; and the image analyzing system transmits the image information to the external fire transmission device at the same time. According to the invention, a mode of image and temperature combined analysis is adopted, so that the fire can be effectively monitored, and the probability for misinformation of the fire can be reduced.

The invention discloses an intelligent fire-fighting device for garden construction. The intelligent fire-fighting device comprises a detection device, a fire extinguishing device, a control device, aWIFI module, an alarming device and an external power supply; the detection device comprises a temperature detection module and a smoke detection module; the fire extinguishing device comprises a fire extinguishing element and a switch element; the control device comprises a signal receiving element for receiving a signal transmitted by the detection device, a signal sending element for sending the signal to the fire extinguishing device, a rotating element for adjusting the direction of the fire extinguishing element, a vertical rotating motor for driving the rotating element to rotate in the vertical direction, and a horizontal rotating motor for driving the rotating element to rotate in the horizontal direction; the rotating element is movably connected with the fire extinguishing element, and the fire extinguishing element can rotate by 360 degrees on the rotating element; and the WIFI module comprises a WIFI element and an intelligent terminal, the WIFI element is electrically connected with the detection device and the alarming device, and the WIFI element can send data detected by the detection device to the intelligent terminal in real time.

The invention relates to a fire-fighting device, in particular to a fire-fighting sprinkler head with a circular-arc nozzle, comprising a sprinkler head body, a bearing and a connecting pipe. More than two axially-crossed circular-arc nozzle slots are evenly distributed on the circumference at the top of the cylindrical bottle cap-shaped sprinkler head body; an eject angle is formed between the axial lower end and the axial upper end of the circular-arc nozzle slot; the initial end at the axial upper end of the nozzle slot is a B end and the terminal end is a C end; the eject angle varies evenly from the initial end B to the terminal end C. When fire-extinguishing agent passes through the circular-arc nozzle slot, the sprinkler head obtains a tangential force to rotate under the action of pressure, so that the sprinkled fire-extinguishing agent forms a cake shape covered on the oil surface of flame around the sprinkler head. The sprinkler head is suitable for fire-extinguishing agents such as water and hydrogenic film foaming liquid, has the advantages of short extinguishing time, little fire-extinguishing agent, low extinguishing cost, convenient, flexible and efficient use, and is suitable for fighting fire at ground of hangar, decks, and the like.

The invention provides a liquid fire extinguishing agent atomizing and spraying head. A plurality of atomizing nozzles are distributed on the periphery of a spraying head; a plurality of area reduction type pipeline jet injection bodies are distributed at the center of the spraying head; the atomizing nozzles rotate flowing-though liquid and a jet fluid fog field is generated by rubbing the discharged fluid with air and then crushing and atomizing; the liquid which flows through the pipeline jet injection bodies is sprayed out from the nozzles at a high speed so as to form a high-speed jet flow; the high-speed jet flow penetrates through the atomizing and spraying head to generate the jet fluid fog field; and after the liquid is rubbed with air, the liquid is crushed and atomized in a farther region to form the jet fluid fog field. The atomizing nozzles of the spraying head of the fire extinguishing agent disclosed by the invention generate a jet liquid fire extinguishing agent fog field, and a pipeline jet injection liquid fire extinguishing agent is crushed and atomized in the farther region to form a jet liquid fire extinguishing agent fog field; and the two liquid fog fields are connected to form a banana-shaped liquid fire extinguishing agent fog field.

The invention relates to a method for ground fire extinguishing drilling cracking of an irregular goaf in a coal mine, and belongs to the technical field of coal mine fire prevention. The method comprises the steps of selecting drilling holes drilled into remaining coal pillars of the goaf, injecting a lower nozzle of a high pressure resistant low temperature pipe into the bottoms of the drillingholes, using a sealing material to prepare a sealing section around the lower nozzle of the high pressure resistant low temperature pipe at a distance of 5 meters above the high pressure resistant lowtemperature pipe, using a booster pump to introduce high pressure carbon dioxide through an upper nozzle of the high pressure resistant low temperature pipe to form pressed cracks on the remaining coal pillars of the goaf, and pouring a fire extinguishing material and high pressure carbon dioxide mixture from the upper nozzle of the high pressure resistant low temperature pipe through the boosterpump.

The invention relates to a fire extinguishing pipe with a fire extinguishing agent in the field of fire fighting, and aims to overcome the defects of an existing fire extinguishing system that the fire extinguishing agent is transmitted to a fire disaster area through a storage container, and is sprayed by a spray head to extinguish the fire, the reaction time is long, the storage container also needs to occupy a certain space, and even for the small-space fire extinguishing protection, a large whole set of system is needed, so that the existing fire extinguishing system is very uneconomical.According to the invention, the fire extinguishing agent is filled in the fire extinguishing pipe, the fire extinguishing pipe with the fire extinguishing agent is used for protecting a small-space object, and when the protected object has a fire, the fire extinguishing pipe can timely spray the fire extinguishing agent for extinguishing the fire, the fire extinguishing reaction time is short, thefire extinguishing efficiency is high, and the investment and the fire extinguishing cost are low. The fire extinguishing pipe is structurally composed of a pipe, a valve on the pipe, a pressure annunciator, a pressure gauge, a spray head and the like, the pressure annunciator, the pressure gauge and other accessories can be installed or do not need to be installed according to the needs, the pipe is filled with a certain amount of fire extinguishing agent with certain pressure according to the design requirements, and the fire extinguishing agent can be any fire extinguishing agent meeting the design requirements.

The invention discloses a three-phase jet-flow fire-fighting monitor system for gas-powder separation. The three-phase jet-flow fire-fighting monitor system comprises a three-phase fire-fighting monitor head for gas-powder separation, a filter, a nitrogen pressurizing device and a dry powder tank; the dry powder tank is connected to a powder inlet pipe of the three-phase fire-fighting monitor head for gas-powder separation through a pipeline, a nitrogen outlet pipe of the three-phase fire-fighting monitor head for gas-powder separation is connected with one end of the nitrogen pressurizing device through the filter, and the other end of the nitrogen pressurizing device is connected with the dry powder tank. According to the three-phase jet-flow fire-fighting monitor system for gas-powder separation, the structure is simple, and use is convenient; a hydrocyclone separation device of a dry powder pipeline arranged in a fire-fighting monitor can separate out nitrogen for transporting ultra-fine dry powder, therefore, the ultra-fine dry powder and a water-based extinguishing agent are fully mixed, the atomization degree of jet flow is reduced, and the firing range of the fire-fighting monitor is widened; in addition, separated nitrogen is pressurized by the pressurizing device and then enters the dry powder tank for cyclic utilization, and therefore the extinguishing cost is reduced.

The invention discloses a pre-assembled turbofan cannon foam-water mist fire extinguishing system. After a fire extinguishing instruction is received, a top closing system is started, a central control system controls a lifting system to enable a turbofan cannon to rise, an automatic aiming system carries out fire behavior judgment on a current fire behavior scene, if fire behaviors exist, a maximum fire behavior region is positioned, and the maximum fire behavior region is fed back to the central control system; and the central control system sets the fire extinguishing direction of the turbofan cannon according to the maximum fire behavior region and controls a container type foam supply system and a container liquid supply system to convey foam liquid to the turbofan cannon, the turbofan cannon sprays the foam liquid according to the fire extinguishing direction, and fire in the current fire behavior scene is precisely extinguished, wherein the mounting process and the control process of the pre-assembled turbofan cannon foam-water mist fire extinguishing system are effectively simplified, and the corresponding fire extinguishing cost is reduced on the basis of improving the fire extinguishing precision.

The invention belongs to the technical field of fire alarm, and particularly relates to a security system for fire prevention and a fire detection method. The security system disclosed by the invention comprises an image analysis subsystem, a temperature analysis subsystem and a fire analysis chip, wherein the image analysis subsystem transfers image analysis result information to the fire analysis chip, the temperature analysis subsystem transfers temperature variation information to the fire analysis chip, and the fire analysis chip carries out calculation through combining the information of the image analysis subsystem and the temperature analysis subsystem so as to judge the fire; the security system also comprises a fire external-transmission device, the fire analysis chip transfers fire information to the fire external-transmission device, meanwhile, the image analysis subsystem simultaneously transfers image information to the fire external-transmission device. According to the invention, through adopting a mode of comprehensively analyzing images and temperature, the fire can be effectively monitored, and the probability of false fire alarms is lowered.

The invention discloses a carbon dioxide colloidal foam fire extinguishing device. The device comprises a mixing tank, wherein a diluent inlet pipe is arranged at the upper part of the mixing tank, and a gas inlet pipe and a mixed liquid outlet pipe are correspondingly arranged at the lower part of the mixing tank; the mixed liquid outlet pipe is sequentially connected with a high pressure pipe II and a sprayer; an one-way valve III, a valve III and a throttling valve are sequentially arranged on the mixed liquid outlet pipe along the liquid outgoing direction; the tail end of the gas inlet pipe is connected to a liquid carbon dioxide steel cylinder; an one-way valve I, a valve I and a pressure reduction valve are sequentially arranged from the mixing tank to the liquid carbon dioxide steel cylinder on the gas inlet pipe; the tail end of the diluent inlet pipe is connected and communicates with a high pressure pipe; the high pressure pipe communicates with a diluting tank through a hydraulic pump. According to the device, the foam sprayed by the device can form a colloidal isolating film at a fire site; the colloidal particles are fine, and are high in combination capacity, large in covering area and high in fire extinguishing capacity; and the fire extinguishing cost is low. The device is simple in structure, and easy to operate.

The invention provides a mixture ratio of gel to water or a foaming agent which is 1 to between 50 and 10,000. The use method comprises the following steps: a stirring device or a pumping impeller device is arranged inside a jet pipe (or the stirring device or the pumping impeller device is not arranged); before or after the gel is infused into the stirring device or the pumping impeller device in the jet pipe by air pressure, the jet is jetted to a fire source after mixture; the gel can not be placed into a container with the water or the foaming agent and is required to be used during the extinguishing process. Because the gel can be quickly solidified into the shape of fruit jelly after mixed with the water or the foaming agent, a fire-extinguishing preparation device has small fluidity, effectively isolates the air, quickly extinguishes the fire, reduces the fire-extinguishing time and then reduces the loss.

The invention discloses a movable speed-adjustable blower special for forest fire fighting. The movable speed-adjustable blower special for forest fire fighting comprises a working plate, supporting legs, trundles and a unit body. The supporting legs are arranged beside the working plate. The trundles are arranged beside the supporting legs. A connecting frame is arranged beside the working plate. The unit body is arranged beside the connecting frame. A bellows is arranged beside the unit body. An air inlet plate is arranged beside the air bellows. An air outlet pipe is arranged beside the air inlet plate. An air speed control panel is arranged beside the unit body. A handle is arranged beside the air speed control panel. A display screen is arranged beside the handle. A refueling cap is arranged beside the display screen. A transmission box is arranged beside the refueling cap. The movable speed-adjustable blower special for forest fire fighting has the beneficial effects that a traditional handheld fire fighting way is replaced by the movable speed-adjustable blower, the physical strength for working is reduced for firemen, the working efficiency is improved, power resources are saved since the air speed of the blower can be adjusted, and fire fighting cost is reduced.

The invention discloses a preparation method of a low-cost ABC dry powder extinguishing agent. The preparation method comprises the steps of mixing carbon nano tubes with concentrated sulfuric acid, carrying out standing, filtration, washing, ball milling and drying, adding calcium hydroxide ultrafine powder and mica powder, and uniformly mixing the materials to obtain a prefabricated material; and adding wet monoammonium phosphate, sepiolite powder, medical stone powder, light calcium carbonate and silicone oil into the prefabricated material, stirring the materials, and carrying out hot airconstant-temperature dehydration and smashing, so as to obtain the low-cost ABC dry powder extinguishing agent. According to the preparation method of the low-cost ABC dry powder extinguishing agent provided by the invention, production cost of the obtained dry powder extinguishing agent is low, the dispersion effect after fire heating is good, fire extinguishing efficiency is high, and reburningcan be effectively prevented.

The invention discloses a method for extinguishing fire by using flue gas, which comprises the following steps of: 1, collecting the stored flue gas: compressing the flue gas exhausted to a chimney by a boiler into a mobile gas storage tank or a fixed gas storage tank by using an air compressor, wherein the output end of the fixed gas storage tank is communicated with a gas pipeline of a user side through a building gas pipe network; 2, collocating an air respirator for emergency escape of a wearer indoors; 3, inflating gas to the room to extinguish fire: when a fire disaster happens, automatically opening a pipeline valve communicated with the fixed gas storage tank indoors by a trapped person to inflate the gas to the room to extinguish fire; supplying the flue gas to the fixed gas storage tank in time by a rescuer, or closing the pipeline valve at the output end in time according to the fire extinguishing condition; and 4, performing safe escape, namely the trapped person wears the air respirator and escapes the danger zone per se. By using the flue gas to extinguish the fire, the fire is extinguished quickly, the effect is good, articles are not damaged, building collapse accidents and personnel burn can be prevented, fire spread is effectively controlled, the escape time for trapped persons is prolonged, and the method has unique advantages of fire extinguishment of high-rise buildings.

The invention discloses a foaming filling reinforced sealing material for coal field fire extinguishing grouting and application thereof, and belongs to the field of grouting materials for coal fieldfire extinguishing. According to the technical scheme, the thermal insulation material comprises 30-35 parts of cement, 10-15 parts of gypsum, 15-20 parts of aluminum oxide, 15-20 parts of fly ash, 15-20 parts of quicklime powder, 3-5 parts of a foaming agent, 1-2 parts of a foam stabilizer, 1-2 parts of a gelatinizing agent, 2-3 parts of a retarder, 1-2 parts of an intumescent flame retardant and1-2 parts of an antistatic agent. The filling reinforcing sealing material is applied to coal field fire extinguishing, overcomes the defects of small expansion coefficient, poor flowability, small fire extinguishing and blocking distance, high after-combustion risk, high cost and low efficiency of an existing filling reinforcing sealing material in coal field fire extinguishing, and has the characteristics of large expansion coefficient, good flowability, large fire extinguishing and blocking distance, low after-combustion risk, low cost and high efficiency.

The invention discloses a preparation method of an efficient fire extinguishing superfine dry powder extinguishing agent. The preparation method comprises the following steps of uniformly mixing monoammonium phosphate, ammonium chloride, light calcium carbonate, dolomite powder, dicyandiamide, phenolic resin, magnesium chloride, borax, copper acetate and trimethyl ethyoxyl silane, carrying out warming, spraying methyl phenyl silicone oil in a stirring state, and uniformly stirring the mixture to obtain a mixed material; and crushing the mixed material, adjusting the temperature, and stirring and drying the mixed material to obtain the high-efficiency fire extinguishing superfine dry powder extinguishing agent. According to the preparation method of the efficient fire extinguishing superfine dry powder extinguishing agent, the water repellent property, fluidity, the jetting property and the anti-caking property of the obtained dry powder extinguishing agent are excellent, the price is low, furthermore, the specific surface area is large, fire extinguishing efficiency is high, the use amount is less during the extinguishing process of the fire disaster with the same level, and the fire extinguishing cost is low.

The invention discloses a lithium ion battery fire test cabinet with a self-assembled automatic alarm and fire extinguishment system. The lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system mainly comprises a fire cabinet main body, an automatic alarm system, a battery fixing bracket, a heat source simulation system, a measuring and monitoring system, a fire extinguishing system and a smoke discharging system. By virtue of multi-modulation, the sensitivity and response characteristics of different types of fire detectors (smoke sensing detectors, temperature sensing detectors or integrated smoke and temperature sensing detectors and the like) after the lithium ion battery is fired can be simulated; the lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system is suitable for researching the factors such as the fire extinguishment effects (comprising actual fire extinguishing time and the use amount of fire extinguishing agents and the like) of various gas fire extinguishing agents in lithium ion battery fire, the influence of different fire extinguishing agents on the performance of the lithium ion battery after extinguishing the fire and the like. According to the lithium ion battery fire test cabinet with the self-assembled automatic alarm and fire extinguishment system, a vertical fire extinguishing agent releasing pipeline is self-designed according to a fire cabinet body, so that the fire extinguishing agent can be fully released into a battery cabinet within short time after the battery is fired, thus the fire extinguishing time is greatly shortened, the use amount of the fire extinguishing agent is reduced, the fire extinguishing cost is reduced, and the damage to the lithium ion battery is reduced.

The invention discloses a telescopic powder conveying pipe device which uses a telescopic boom as a carrier and mainly comprises moving pipes, fixed pipes, a dust scraping device, sealing rings, upper and lower bearings and the like, wherein the fixed pipes are fixedly connected with a fixed arm; the moving pipes are fixedly connected with a moving arm; each section of moving pipe is provided with a bearing; the sealing rings form sealing between the moving pipes and the fixed pipes; the upper and lower bearings not only are used as carriers of the sealing rings, but also used for axial limiting between the moving pipes and the fixed pipes. The telescopic powder conveying pipe device not only solves the problem of conveying powder required for high-rise fire extinguishment, but also improves the fire extinguishment function of a conventional water tower fire truck and changes fire fighting tactics of high-rise buildings, or large-scale petrochemical, and coal chemical production and storage devices and the like.