66results about How to "Reduce firefighting costs" patented technology

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 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 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.

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 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 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 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 multi-level high-altitude full-coverage type fire extinguishing method. The method comprises the following steps that A1, an unmanned aerial vehicle carrying a plurality of fire extinguishing balls is controlled to fly to the position above a fire scene; A2, the fire extinguishing balls are released downwards; and A3, the plurality of fire extinguishing balls are detonated at different heights above the fire scene, and fire extinguishing agents in the fire extinguishing balls are sprayed out in a bursting mode so as to extinguish open fire with different heights. According to the method, the fire extinguishing balls are detonated at different heights to realize multi-level fire extinguishing on the fire scene, so that the fire scene of all heights are covered, compared with a traditional single-height fire extinguishing mode, the multi-level fire extinguishing method can realize all-directional fire extinguishing on the fire scene, the fire extinguishing effect is excellent, the projected fire extinguishing balls are further reduced, the fire extinguishing cost is reduced, the fire extinguishing efficiency is improved, and fire spreading is effectively avoided.