259results about How to "Fire extinguishing speed" patented technology

The invention provides a low-fluorine environment-friendly type aqueous film-forming foam fire extinguishing agent and a preparation method thereof. The fire extinguishing agent is composed of the following components in percentage by weight: 1%-2% of a fluorocarbon surfactant, 10%-40% of a hydrocarbon surfactant, 1%-10% of a silicon-containing surfactant, 20%-30% of an organic solvent, 0.1%-1% of a foam stabilizer, 2%-8% of a burning-resisting agent, 0.1%-1% of a preservative and a proper amount of water. The preparation method of the fire extinguishing agent comprises the following steps: mixing and agitating the fluorocarbon surfactant with the organic solvent to form a component A; mixing the hydrocarbon surfactant with the silicon-containing surfactant and water to form a component B; uniformly mixing the burning-resisting agent, the foam stabilizer and the preservative to form a component C; adding the component B into the component A and slowly adding the component C into the component A; and agitating uniformly. According to the low-fluorine environment-friendly type aqueous film-forming foam fire extinguishing agent, the three surfactants are compounded so that the use amount of the fluorocarbon surfactant is reduced to be less than 2% and the low surface tension is still kept; and the cost of the aqueous film-forming foam fire extinguishing agent can be reduced and the damages to the environment caused by fluorine compounds can be reduced.

The invention discloses an automatic electric switch cabinet fire extinguishing system and a fire recognition method, wherein the automatic electric switch cabinet fire extinguishing system comprises a fire extinguishing agent nozzle which is arranged in an electric switch cabinet; the fire extinguishing agent nozzle is connected with a storage device in which a non-conducting fire extinguishing agent is stored through a pipeline; an electromagnetic valve which is controlled by a central controller is arranged on a pipeline; a photoelectric sensor is also arranged in the electric switch cabinet; and the photoelectric sensor outputs a detection signal to the central controller and then the central controller judges whether to open the electromagnetic valve. The automatic electric switch cabinet fire extinguishing system is capable of responding sudden electric fire and reducing the loss caused thereby. Fire extinguishing agents such as heptafluoropropane and superfine dry powder are used and non-conducting, so that secondary danger caused by conduction of fire extinguishing agents does not occur; and the fire extinguishing agents are environmental-friendly, so that the damage to the environment caused by conduction of fire extinguishing agents also does not occur. The photoelectric sensor is used, so that the fire such as electric arc and the like in the switch cabinet can be rapidly and correctly detected.

The invention relates to a fire detection, prevention and control system of an electronic control cabinet. The fire detection, prevention and control system comprises a data acquisition device, a fire extinguishing device and a main control device which are arranged in an electronic control cabinet body, wherein the data acquisition device is used for acquiring detection data of each detection node in the electronic control cabinet in real time, and transmitting the detection data to the main control device; the fire extinguishing device is used for accepting a control signal sent by the main control device, and carrying out fire control and processing on an area with a fire early warning; a fire extinguishing control module is used for sending a control signal to the fire extinguishing device according to the instruction of a CPU (central processing unit) core module. The invention further discloses a control method based on the system. The control method comprises the following steps: transmitting the CO and smoke concentration acquired in real time to the CPU core module; processing by a pre-detection data filter model to obtain a characteristic extraction value; if fire early warning standards are met, sending an early warning or starting the fire extinguishing device. The fire detection, prevention and control system and the control method disclosed by the invention are capable of performing real-time detection on a small space such as the electronic control cabinet, eliminating fire in the bud, and reducing the false alarm rate of fire early warning.

A fire-extinguishing chemical for forest is proportionally prepared from potassium siliate, ammonium, citrate, the potassium salt and/or ammonium salt of sulfuric acid and phosphoric acid, poly-5-vinyl-1,2-dimethylpyridine-methylsulfate, carboxymethyl cellulose, and the mixture of cupper sulfate and ferrocene through ball grinding and granulating.

The invention discloses an annular fine water mist fire extinguishing cover system. The annular fine water mist fire extinguishing cover system comprises a fine water mist spraying mechanism; the fine water mist spraying mechanism includes a high-pressure water distributor and more than two annular water pipes; each annular water pipe is communicated with the high-pressure water distributor through more than high-pressure water distribution pipes; and each annular water pipe is respectively provided with more than two fine water mist nozzles. The annular fine water mist fire extinguishing cover system is fast in fire extinguishing speed and high in fire extinguishing efficiency, and cannot generate secondary pollution to surrounding environments. The annular fine water mist fire extinguishing cover system can be used for cooling exposed combustible gas or liquid pipes after fire extinguishing, overcomes the defects of low fire extinguishing efficiency and bad fire extinguishing agent waste in a traditional spraying dry powder fire extinguishing agent, and satisfies the purposes and the technical requirements of effectively extinguishing the oil tank fire.

The invention discloses a multifunctional fire extinguishing device which can synchronously eject double fire extinguishing media. The fire extinguishing device consists of driving power devices, fire extinguishing medium storage tank devices and an ejecting device. According to the fire extinguishing device, a manner that two kinds of fire extinguishing media are synchronously ejected, or a manner that one kind of the fire extinguishing media is ejected can be selected; the ejecting flow and the ejecting strength of double fire extinguishing media or single fire extinguishing medium can be synchronously controlled through valves; a dry-powder fire extinguishing agent medium can be ejected far by the power of ejecting a water-series extinguishing agent medium or foam extinguishing agent medium. The fire extinguishing device is simple and practical, has a powerful flexible fire extinguishing capability, and can be widely applied and equipped in various fire extinguishing systems or fire extinguishing equipment; the flow of the double-media multifunctional fire extinguishing device can be flexibly controlled, and complicated mixed fires can be effectively put out.

The invention discloses a fire extinguishing plant of an energy storage system, comprising a sprinkler device, a smoke drying device, a water retaining device, and a water drainage device, wherein, the sprinkler device is used for spraying running water at the ablaze battery module, the smoke drying device is used for discharging smoke on the fire point and drying the battery module when water spraying stops, and the water retaining device is arranged opposite to the sprinkler device for blocking the water sprayed from the sprinkler device to prevent the water from flowing around any region outside the ablaze battery module and allowing the water to enter the water drainage device to discharge. According to the invention, water is used for fire extinguishment and simultaneously smoke discharge is carried out, thus the speed of fire extinguishment is fast, the smoke is little, inflammable gases released from the battery can be rapidly removed by timely smoke discharge in the fire extinguishing process, the danger of gas suffocation is avoided, the explosion risk caused by accumulation of inflammable gases injected by the battery in the process of using gas for fire extinguishment is avoided, and the electric shock caused by chaotic water flow is effectively avoided by the water retaining device and the water drainage device.

The invention discloses a seawater-resistant insoluble aqueous film-forming foam extinguishing agent and a preparation method thereof. The extinguishing agent comprises the following components in parts by weight: 300-400 parts of deionized water, 6-10 parts of sodium benzoate, 20-80 parts of urea, 5-9 parts of xanthan gum, 100-400 parts of Cocamidopropyl betaine, 20-60 parts of APG, 80-200 parts of ethylene glycol, 20-60 parts of ethylene glycol monobutyl ether, 10-50 parts of F1157, 10-50 parts of F1203, 10-60 parts of F1460 and 20-60 parts of a buffer agent. The seawater-resistant insoluble aqueous film-forming foam extinguishing agent is used for being mixed with seawater for fire extinguishing and has the advantages of low viscosity, high fire-extinguishing speed, high expansion rate, stable property, long storage time and the like.

The invention discloses a novel multifunctional fire protection coaxial nozzle device used for spraying two kinds of fire extinguishing media at the same time. The novel multifunctional fire protection coaxial nozzle device can selectively spray two kinds of fire extinguishing media at the same time or spray one kind of fire extinguishing media, the spraying flow and intensity of the two kinds of fire extinguishing media or one kind of fire extinguishing media are controlled through a valve at the same time, and spraying power of water extinguishing agent or foam extinguishing agent media enables dry powder fire extinguishing agent media to be sprayed by a longer distance. The novel multifunctional fire protection coaxial nozzle device is simple and practical, has high and flexible fire extinguishing capacity, and can be widely applied to and arranged into various fire extinguishing systems or fire extinguishing devices.

The invention relates to a wheeled combined jet fire extinguisher which is characterized in that a wheeled cart is taken as a carrier; a gas cylinder, a water tank/ foam tank and a superfine dry power tank are arranged on the wheeled cart; the gas in the gas cylinder enters the water tank/ the foam tank through an air relief valve and a gas pipeline; the prefixed liquid of water and foam in the water tank/ the foam tank is pressed in the inlet of a jet device through a water pipeline; the superfine dry powder in the superfine dry powder tank enters the inlet of the jet device through a powderdischarge valve, a dry powder pipeline; and the water and the superfine dry powder are jet out simultaneously. According to the invention, the water and the dry powder are organically combined, thus achieving compatible properties and complementary advantages. The wheeled combined jet fire extinguisher has extremely fast speed of extinguishment, and extinguishes fire almost instantly within a certain range.

The invention relates to a low-temperature-resistant premixed foam fire-extinguishing agent and a preparation method thereof, and mainly solves the problem that fire-fighting chemicals cannot be used in a low-temperature environment after being mixed with water in the prior art. The problem is solved well through adopting the technical scheme that the low-temperature-resistant premixed foam fire-extinguishing agent and the preparation method thereof are adopted, and comprises the following components in percentage by mass: 10-20% of pour point depressant, 0.1-1.0% of film-forming agent, 0.5-2.0% of foaming agent, 0.05-0.2% of penetrating agent, 0.2-1.0% of foam-stabilizing agent, 0.1-0.5% of preservative, 2-5% of other additives and the balance deionized water. A fire extinguisher or a fire-extinguishing device can be directly filled with the low-temperature-resistant premixed foam fire-extinguishing agent in the low-temperature environment to extinguish fire.

The invention discloses a power transmission line forest fire extinguishing agent. According to the invention, 23wt% of potassium chloride, 52-65wt% of ammonium carbonate and 12-25wt% of disodium hydrogen phosphate chemical solid are sequentially and respectively dissolved in an appropriate amount of water, and thus a fire extinguishing fluid having the specific gravity of 1.1-1.2 can be obtained; the fire extinguishing fluid is stored in a sealed lightproof container. Before, the power transmission line forest fire is put out, the fire extinguishing fluid is diluted by using water in a ratio of 1:20 and then the diluted fire extinguishing fluid is filled in a water mist fire extinguisher; the fire extinguishing agent is sprayed to the scene of fire as the water mist to put out the fire. The power transmission line forest fire extinguishing agent is quick in fire extinguishing speed, high in fire resistance and high in fire extinguishing efficiency; a small amount of fire extinguishing agent is capable of effectively extinguishing the forest fire of a certain area and effectively preventing a transmission line from tripping due to the forest fire.

The invention discloses an annular water mist fire extinguishing system of an oil storage tank. The annular water mist fire extinguishing system is characterized in that a metal bracket floating on the oil surface is arranged inside the oil storage tank; a water mist spraying device is arranged on the metal bracket; the spraying device communicates with a high pressure water feeding device at the outer part of the oil storage tank; the water mist spraying device comprises a water collector arranged at the circle center part of an aluminum alloy ring and six radial metal tubes, and further comprises an inner annular metal water tube, a middle annular metal water tube and an outer annular metal water tube which form a concentric circle structure; the near-ends of the metal tubes communicate with the water collector, and the far-ends of the metal tubes communicate with the inner annular metal water tube, the middle annular metal water tube and the outer annular metal water tube; and a plurality of water mist nozzles are uniformly arranged on each of the inner annular metal water tube, the middle annular metal water tube and the outer annular metal water tube in the circumferential direction. According to the annular water mist fire extinguishing system, with the fire extinguishing conditions met, the fire extinguishing water mist is directly sprayed to ignition combustion areas in the tank, so that the purpose that the fire is extinguished more quickly and effectively is achieved, the temperature of combustible gases in the tank can be decreased more quickly, and secondary combustion and explosion are prevented.

The invention relates to an application of a multielement class-D dry powder extinguishing agent in extinguishment of metallic magnesium and metallic sodium fires. According to experimental models, test procedures and test requirements on the basis of the requirements of A979-2012 'Class-D Dry Powder Extinguishing Agent', fire-extinguishing tests on the burning metallic magnesium dry scraps, metallic magnesium dry powder, oil-immersed metallic magnesium scraps and oil-immersed metallic magnesium powder or metallic sodium are carried out by using the multielement class-D dry powder extinguishing agent, wherein the fire-extinguishing success rate reaches 100%. The examination result after the spraying of the multielement class-D dry powder extinguishing agent shows that the fire-extinguishing time is less than 3 minutes, the fire-extinguishing effectiveness is less than 20Kg/m<2>, the surface temperature of the metallic magnesium and the metallic sodium after the fire extinguishing is measured to be decreased below 48 DEG C and the surface temperature of the metallic magnesium dry scraps after the fire extinguishing is decreased below 130 DEG C. After the multielement class-D dry powder extinguishing agent is sprayed for 2 hours, if reaction residues of the metallic magnesium and the metallic sodium after the metallic magnesium and the metallic sodium are burnt out, which are turned over and stirred, cannot burn again, the fire-extinguishing application is successful.

The invention discloses application of a multi-component D-type dry powder extinguishing agent in extinguishing aluminum alkyl fire. An aluminum alkyl fire extinguishing test is executed for multiple times according to a test model, test steps and a test requirement of the D-type Dry Powder Extinguishing Agent GA979-2012; rechecking is executed after the extinguishing agent is sprayed, and the extinguishing time is shorter than or equal to 2min; the surface temperature of aluminum alkyl subjected to extinguishing is reduced to be below 48 DEG C; residual reactants of the flamed-out aluminum alkyl and the extinguishing agent are turned over and stirred to ensure no after-combustion; the dry powder extinguishing agent cannot be exploded in water; (4) the extinguishing effect is lower than or equal to 28Kg/m<2>; the extinguishing success rate is 100 percent.

The invention provides an environment-friendly missile-gun fire vehicle, which comprises a vehicle body. A gun barrel fixing platform is arranged on the upper side of the vehicle body, a gun barrel is fixed on the gun barrel fixing platform and comprises a magazine holder; a controller, an elevation angle driving motor, a rotating motor and an inert gas storage tank are arranged in the vehicle body; the elevation angle driving motor is connected with the gun barrel fixing platform through an elevation angle rotating gear plate; a rotary fort is arranged in the vehicle body, one end of the rotary fort is fixedly connected with the elevation angle rotating gear plate, and the other end of the rotary fort is connected with a gear of the rotating motor through the rotating gear plate; the inert gas storage tank is connected with the gun barrel through an air duct. According to the environment-friendly missile-gun fire vehicle, high-pressure gas is taken as a power source; after aiming at a fire source, the fire vehicle can fire a carbon dioxide fire extinguishing bomb to instantly extinguish flame and isolate oxygen, and firefighters do not need to arrive in a fire ground and can quickly extinguish the fire, so that the labor and the materials are saved, and the material and property loss caused by a fire disaster is reduced.

The invention relates to a forest fire prevention fire extinguishing agent. The invention aims to solve the problem that a fire scene fires back to be reburnt after the fire prevention fire extinguishing agent is used when a forest fire occurs. The forest fire prevention fire extinguishing agent is prepared from the following components in weight percentage: 20-30 percent of lauramide propyl hydroxysulfobetaine, 0.2-1 percent of sodium carboxymethylcellulose, 1-6 percent of urea, 1-15 percent of dodecyl dimethyl betaine, 1-10 percent of sodium dodecyl sulfate, 5-25 percent of ethylene alcohol, 0.2-1.2 percent of fluorocarbon surfactant and the balance of water. The forest fire prevention fire extinguishing agent can be used for forest fire extinguishing.