1603results about How to "Improve fire extinguishing effect" patented technology

The invention provides a fire extinguishing agent. The fire extinguishing agent is prepared by evenly mixing 1-25 parts of hydrophilic solid powder and 100 parts of water or water solution, and then adding 0.001-2 parts of surfactant for evenly mixing; and then adding 2-100 parts of hydrophobic solid particles. The invention provides a preparation method of the fire extinguishing agent. Compared with the existing fire extinguishing agent, the fire extinguishing agent can simultaneously play stifling, cooling and chemical inhibition roles, and the fire extinguishing efficiency is high; according to the fire extinguishing agent, due to addition of the surfactant in the water phase, the dispersion of rotating speed in preparation process can be lowered, the dispersion time can be shortened, and the preparation efficiency can be improved; and with the fire extinguishing agent, the adhesion property of solid gas interface and liquid gas interface can be greatly improved, the usage amount for extinguishing fire can be greatly reduced, and the fire extinguishing property can be obviously improved.

The invention relates to a fire-extinguishing composition containing amino acid compounds. The fire-extinguishing composition comprises the following components in percentage by mass: 10-70% of amino acid and 30-90% of fire retardant; and in the fire-extinguishing composition, fireworks drug is used as heat source and power source, and the fire-extinguishing composition is driven by setting fire to the fireworks drug to react to generate a large amount of fire-extinguishing substances which are sprayed out together with the fireworks drug to extinguish fire. By adopting the amino acid compounds and through using the characteristic of low toxicity of amino acid, the fire-extinguishing composition has no harm to people and livestock; and in addition, the amino acid compounds decompose and generate various aerosol fire-extinguishing substances which are excellent in fire-extinguishing effect, therefore, the fire-extinguishing efficiency of the fire-extinguishing composition is improved.

A combined high-pressure sprayer able to generate the highly atomized water for extinguishing fire features that its fast commutator body has two sealing units at its both ends, one sealing unit is connected to a remote spray tube with a remote nozzle, another sealing unit is connected to a near spray tube with a spherical nozzle for atomizing water, and said fast commutator body is connected to the tube of water gun.

The invention discloses a method for preparing a full siliconization ABC powder extinguishing agent, which comprises the following steps: pulverizing monoammonium phosphate and ammonium sulphate; weighing 2 to 4 percent of floridin, 1 to 3 percent of mica powder, 0.5 to 10 percent of talcum powder, 0.5 to 10 percent of ore fluorite, 2 to 4 percent of lyophobic white carbon black, 0.2 to 0.6 percent of organic silicon oil, 40 to 91 percent of pulverized monoammonium phosphate and 1.5 to 50 percent of ammonium sulphate in percentage by weight; mixing the materials evenly except the lyophobic white carbon black and the organic silicon oil; stirring the organic silicon oil, an organic solvent and water to form an emulsifying silicon oil solution in the ratio of 1:0.4:1; pressurizing the solution to between 0.4 to 0.6Mpa, and spraying the solution onto the mixed materials to be silicified for 30 to 60min; drying and stirring the silicified materials, and adding the lyophobic white carbon black to be mixed evenly, sieved and packaged. The extinguishing agent prepared by the invention has the advantages of stable water ratio, high performance of moisture prevention and agglomeration prevention and better fire-extinguishing efficiency.

A process and a device for atomization of a liquid extinguishing medium, in which the liquid extinguishing medium and a liquid inert gas are mixed in a mixing unit to form a liquid extinguishing medium mixture. The mixture is conveyed through a conduit to a distributing device such as extinguishing nozzles. As the mixture exits the distributing device the mixture is atomized, forming an aerosol spray for extinguishing a fire within an extinguishing area defined by the aerosol spray. A detector arranged in the extinguishing area for detection of parameters relating to extinguishing of the fire is connected to an evaluation device which in turn is connected to a control valve. The control valve regulates the quantity of liquid inert gas supplied to the mixing unit.

A fire-extinguishing foaming chemical with covering function features that it contains F1157N or F1203, F3 or OBS or FC-4, JR-400 or sodium algate or CMC or HEC or cationic starch or chitosan or xanthan gum, CAB or LAB or MZL or K12 or APG, ethanediol butylether or propanediol butylether, glycol or diglycol or propanetriol, urea, anticorrosion agent and water through proportioning and compounding. Its advantages are high fire-extinguishing power, strong covering function and high effect on preventing evaporation of oil.

The invention discloses a firefighting monitoring and alarming system, which comprises smoke sensors, photographic probes, spray heads and a controller, wherein the smoke sensors and the photographic probes are electrically connected with the controller respectively; the spray heads are arranged on trolleys with rollers; the rollers of the trolley are arranged on rails which are arranged on a deck; motors are arranged on the trolleys, take storage batteries as power supplies, and drive the rollers through transmission mechanisms to roll along the rails; and the spray heads are connected with water hoses on which electromagnetic valves are arranged. Due to the adoption of the structure and a working mode, the spray heads can be moved to positions optimal distances away from a fire point, so that an optimal fire suppression effect is achieved, and at least time is gained for the arrival of a special fire brigade; in addition, water resources are fully utilized, and the purposeless spraying phenomenon of the spray heads is avoided; and moreover, the photographic probes can be moved to specified positions along with the trolleys, so that a monitored fire scene can be accurately photographed in real time.

The invention relates to a absorbent polymer extinguishing agent preparation method comprising following steps: putting acrylic acid solution in ice-water bath, adding 30 wt% sodium hydroxide solution in acrylic acid solution and stirring, then putting into the water-bath, adding 20ml distilled water and heating, adding 1-3 parts of carboxymethyl cellulose and stirring the product until be gelatiniform; feeding nitrogen and adding 0.05-0.20 parts of potassium persulphate, after the reaction, adding acrylic acid solution with neutralization degree of 65%-90% and 2-5 parts of 2-acrylamide-2-methylpropanesulfonic acid and having reaction with 0-2 parts of acrylonitrile solution; adding N, N'-methylenebisacrylamide which is 0.01-0.04 parts in monomer mass fraction as cross-linking agent and having reaction with inorganic salt for 1.5h-2.5h; the product being washed twice by ethanol and distilled water, being dried, crushed and mixed with 500-2000 times of water, then the absorbent polymerextinguishing agent is prepared. The invention optimizes the amount and the adding opportunity of the initiator and the cross-linking agent and also improves water absorption efficiency and fire extinguishing effect of the product.

The present invention provides a ammonium phosphate salt superfine dry powder extinguishing agent and its preparing method. The proportioning by weight of material is common ammonium phosphate salt powder 600-850kg, active carclazyte 15-80kg, silicified white carbon black 40-100kg, mica 25-100kg, calcium carbonate 10-300kg, silicon oil 8-15kg; alternatively, wet-process monoammonium phosphate 700-900kg, active carclazyte 15-80kg, silicified white carbon black 40-100kg, mica 25-100kg, calcium carbonate 10-300kg, silicon oil 8-15kg; the granularity of the product is below 20 mu m. The fire extingushing method has a better effect and wide range. Type A solid matter fire, type B liquid matter fire, type C gas matter fire and type E appliance fire are all put out under the state of closing and semi-closing, since extinguishing agent has a small grain diameter, specific surface is doubled, particulates can not gather after being silicified, extinguishing agent has a better liquidity, improved jet performance, quick pervasion, and the wet-process monoammonium phosphate contains sulfur and ammonium, generating N by heating, greatly enhances the extinguishing effect, about 6-10 times of the common powder extinguishing agent. The extinguishing agent also energy conservation and has a lower cost.

The invention discloses a mining foam generator for preventing and extinguishing fire. The foam generator is characterized in that a Venturi tube is (2) is arranged in a foaming cylinder (1), a liquid pipeline (4) penetrates the wall of the foaming cylinder to extend into the Venturi tube, an atomizing nozzle (3) is arranged at the throat of the Venturi tube and connected to the extending end of the liquid pipeline, the other end of the liquid pipeline is connected with a foaming agent container (6), a pump (5) is mounted on the liquid pipeline, a gas nozzle (10) is arranged at the rear of the atomizing nozzle and connected with an air compressor (7) through a gas inlet pipeline (9), a first foaming screen (11) is disposed at the front end of the Venturi tube, an impeller (13) is disposed in front of the first foaming screen and rotationally connected with an impeller support (14) which is fixedly connected with the wall of the foaming cylinder, and a second foaming screen (12) is fixed at the front end of the impeller support. The mining foam generator is small in size, simple in structure and high in foaming efficiency, the generated foam is fine, even and high in stability, and fire extinguishing effect is increased.

The invention provides a pneumatic emission-type forest extinguishing cannonball, which mainly comprises a ballistic cap, a fuze, a cylindrical shell, a fire-extinguishing agent, a central nonel tube, an umbrella cabin shell, a brake parachute and an umbrella throwing disengagement structure, wherein, the ballistic cap is connected with the front end of the cylindrical shell; the cylindrical shell is connected with the umbrella cabin shell through a connecting plate; the fuze is fixed at the front end of the cylindrical shell; the central nonel tube is fixed in the cylindrical shell and is connected with the fuze through a wire; the umbrella cabin shell is provided with the umbrella throwing disengagement structure and the brake parachute; the fire-extinguishing agent is filled in the cylindrical shell. The pneumatic emission-type forest extinguishing cannonball of the invention can scatter the fire-extinguishing agent and can achieve the optimal extinguishing effect.

The invention discloses an abrasive water cutting and fire extinguishing device which is applicable to the technical field of fire fighting instruments, and particularly relates to a device for cutting and foam fire extinguishing by utilizing a premixed abrasive jet technology. The abrasive water cutting and fire extinguishing device comprises a water tank and a foam liquid tank, wherein an exchange valve is arranged between the water tank and the foam liquid tank, and is connected with a high pressure pump; a high pressure pump pipeline is provided with a pressure meter, a safety valve and a pressure regulating valve; the high pressure pump is connected with an abrasive tank through a pipeline; the abrasive tank is respectively connected with a cutting sprayer and a foaming sprayer through stop valves; a unidirectional valve is arranged between the high pressure pump and the abrasive tank; an abrasive stop valve and an abrasive mixing cavity are arranged below the abrasive tank. According to the invention, the device has double functions of cutting and fire extinguishing; water in the water tank is mixed with abrasive materials through the high pressure pump and the abrasive tank, and is sprayed out from the cutting sprayer so as to cut; a foam liquid is sprayed out from the foaming sprayer through the high pressure pump so as to form large continuous foam to extinguish fire. The device provided by the invention is convenient to cut, extinguish fire and exchange, is high in cutting capability, is obvious in fire extinguish effect, and is low in water using quantity.

The invention provides a preparation method of a superabsorbent resin used for a high-molecular gel extinguishing agent. The preparation method comprises: mixing acrylic acid and a sodium carbonate aqueous solution to prepare a neutralization solution; successively adding a cross-linking agent, an initiator and an adhesion promoter into the neutralization solution to prepare a polymerization solution; performing polymerization to prepare the superabsorbent resin; and cutting into particles with a diameter of 10-20 mm to further prepare superabsorbent resin particles with a particle size of 40-150 meshes. The preparation method is simple, and the superabsorbent resin prepared by the method is convenient to used and excellent in fire extinguishing effect.

The invention relates to a catalytic coolant used in a hot aerosol fire extinguishing device and a processing technique of the catalytic coolant. As to the coolant, heat absorption cooling components mainly include manganese carbonate or manganese oxalate, manganese phosphate, potassium manganate, metal carbonate of a family I, a family II and a transition family, basic carbonate, oxalate and the like; a metal oxide or a hydroxide are adopted as a catalyst, an oxidant and a reinforcing filling; stearate, graphite and the like are adopted as a processing aid; composite solution of alkalis silicate and a water soluble polymer is adopted as an adhesive; and film materials such as hydroxymethyl or hydroxyethyl cellulose are adopted as a surface coating agent. The processing technique includes the steps of mould pressing, squeezing, pelletizing, coating and forming. Compared with the prior art, the catalytic coolant not only has high intensity and good cooling effect, but also can reduce secondary damage of an extinguishing agent and eliminate the content of poisonous gases in an extinguishing agent product so as to improve the environmental safety of the extinguishing agent.

The embodiment of the invention discloses a locomotive fire prevention and control system, which comprises a plurality of fire detection subsystems arranged in different fire prevention areas, a control subsystem and a fire extinguishing execution subsystem, wherein the fire detection subsystem is provided with a plurality of different types of fire detection sensors according to detection requirements corresponding to the fire prevention area; the control subsystem communicates with the fire detection subsystem, a locomotive microcomputer network control system, a locomotive vehicle-mounted protection system and a ground locomotive remote diagnosis system, the control subsystem can carry out logic judgment on the fire state of the fire prevention area where each fire detection subsystem is located in real time based on the detection data collected by each fire detection subsystem, and corresponding processing actions are executed and displayed according to corresponding judgment results. By means of the locomotive fire prevention and control system, complete and closed-loop fire protection can be formed for the whole locomotive from fire detection, control judgment to fire extinguishing execution, and the safety of railway transportation is fully guaranteed.

The invention discloses a fireproof high-molecular compound colloid material for coal mines, which belongs to fireproof materials. The fireproof high-molecular compound colloid material is compounded from 40-100 portions of high-molecular compound and 52-98 portions of an inorganic material, wherein the high-molecular compound is polyacrylate, or is composed of 40-55 portions of polyacrylate, 0-30 portions of carboxymethyl cellulose and 0-15 portions of polyacrylamide; the inorganic material is composed of 30-50 portions of bentonite, 12-18 portions of alumina shale powder, 10-20 portions of kaolin, 0-5 portions of attapulgite and 0-5 portions of clay; and the fineness of each raw material is less than 120 um. The preparation method of the colloid material comprises the following steps: mixing the high-molecular compound for 3-5 minutes; and after respectively spraying the inorganic material on a dry mixer, sufficiently and uniformly mixing the 8 materials for 8-10 minutes. The colloid material has the advantages of high water content, high moisture retention, high heat absorption capacity, quick fireproof effect taking, favorable effect, low possibility of afterburning and low composite cost, and is suitable for preventing and controlling fire for the spontaneous combustion and inflammation laws of different types of coal; and the downhole operation is simple and safe.

The present invention belongs to the field of fire extinguishing technology, and is especially one kind of fire extinguishing coagulant-thickener of caustic sludge colloid. The fire extinguishing coagulant-thickener consists of superfine caustic sludge powder, linear polymer material containing hydrophobic hydroxyl group or carboxyl group, and inorganic silica and alumina material. The fire extinguishing coagulant-thickener is mixed with fire extinguishing base material to form colloid, and may swell after being mixed with water to form mixture slurry with great heat absorption and high heat stability. It has excellent use effect in preventing spontaneous ignition of coal bed and extinguishing fire of coal bed. The present invention uses industrial waste as main material and has rich material source and low cost.

The invention discloses a high-pressure thin water spray fire-fighting injector used in submarine and ship, comprising injector shell, injector patchplug, central air spout, spherical air spout, outer air spout, internal filtering net, metallic sealing bale and dust shield. The shape of injector shell is two conical surfaces, the top of conical surface neat top part is plain, the central part is equipped with air spout; conical surface near to top is distributed with several spherical sir spouts; outer circle of conical surface near to top is next to another conical surface, a plurality of outer air spouts are installed on said conical surface. The air spouts on different installation surface are intercrossed, the injector shell and central air spout, spherical air spout and outer air spout, and injector shell and injector patch plug are all connected with each other through screw. The sealing employs metallic pad. The air spout is connected with the cavity of injector shell; the cavity of injector patch plug is equipped with stainless steel filtering net; another end of injector patch plug is connected with fire-fighting system through screw, and the injector shell is provided with dust cover.

The present invention relates to an immersion-liquid-type battery compartment temperature control system comprising an immersion-liquid-type battery compartment; a first cooling pipe; a second cooling pipe; a third cooling pipe; a temperature sensor which is disposed on the battery pack side of the immersion-liquid-type battery compartment and is used for detecting battery pack temperature; and a temperature control unit which receives battery pack temperature signals sent by the temperature sensor to control startup and shutdown of a first cooling loop, a second cooling loop, a third cooling loop or a heating device. The immersion-liquid-type battery compartment temperature control system has excellent temperature control and temperature balancing capability.

The invention relates to a fire-extinguishing mixture used for retarding fire spreading, in particular to a fire-extinguishing mixture which can form the gel barrier layer and have high viscosity. The fire-extinguishing mixture is prepared by mixing super absorbent polymer (SAP) with water-soluble thickener and water-soluble foaming agent in specific proportions so that when mixed in water, SPA absorbs moisture to form gel to be covered on the surface of a blazer and cut off oxygen supply needed by the fire source; the water-soluble thickener is used to increase the adhesion of gel and reducecracks generated in the gel barrier layer on the surface of the blazer; and water-soluble foaming agent is used to generate foam to increase the vertical adhesion of the gel barrier layer, further prolong the time that the gel barrier layer adheres to the surface of the blazer, overcome the problem that the traditional fire-extinguishing method using water or foam has poor adhesion or retarding property, and greatly improving the extinguishing effect.

The invention relates to fire-fighting equipment, in particular to an electricity-controlled fire water monitor. The electricity-controlled fire water monitor comprises a base, a water inlet pipe, a bent pipe, a water outlet pipe, a monitor head, a horizontal swinging mechanism, a vertical swinging mechanism and a controller, wherein the horizontal swinging mechanism comprises a first motor, a first worm, a first worm gear and a coupler; the vertical swinging mechanism comprises a second motor, a second worm, a second worm gear and a coupler; and the monitor head comprises an explosion direct-current adjusting sleeve, a current stabilizer, a push rod motor and a monitor sleeve. The push rod motor is fixedly installed on a casing of the monitor sleeve, the head portion of a push rod of the push rod motor is fixed on a casing of the explosion direct-current adjusting sleeve, the explosion direct-current adjusting sleeve can be slidingly sleeved on the head portion of the monitor sleeve, and the current stabilizer is fixed on the head portion of the monitor sleeve and coaxial to the monitor sleeve. The electricity-controlled fire water monitor is fast, flexible and stable in rotating, free of limitation from the rotation angle, capable of fast and accurately ejecting water on an aimed fire control target point, adjustable in ejected water spot and improved in fire extinguish speed and effect.

The invention discloses a self-penetrating anti-after combustion fire extinguishing agent. The self-penetrating anti-after combustion fire extinguishing agent comprises the following components in percentage by weight: 1 to 5 percent of sodium dodecyl benzene sulfonate or sodium alkyl naphthalene sulfonate, 0.1 to 1 percent of fluorocarbon surfactant FC4430, 0.5 to 2 percent of carboxymethylcellulose, hydroxyethyl cellulose, cane sugar or oxidized starch, 0.2 to 1 percent of ethylene diamine tetraacetic acid (EDTA) disodium or nitrilotrisodium, 5 to 20 percent of glycol, 1,3-propylene glycol, glycerol, 1,4-butanediol, 2-methyl-2,4-pentanediol or 2,4-hexanediol, 0.1 to 1 percent of sodium stearate, sodium laurate, sodium palmitate or sodium tetradecyl, and the balance of water. The components and the water are stirred to be fully mixed to obtain a primary liquid for later use; and water is added into 1 to 6 percent of primary liquid until the total amount is 100 percent, and then a self-penetrating anti-after combustion fire extinguishing diluent which is 1 to 6 percent in concentration and is used for filling a fire extinguisher is obtained. The diluent is extremely high in penetration and humidification, can quickly penetrate into a combustible object, quickly extinguish fire and quickly reduce temperature, and is after-combustion resistant and environment friendly.