117 results about "Firefighting foam" patented technology

An aircraft fire-extinguishing system provides automatic fire prevention and / or suppression simultaneously in fuel tanks, cargo compartments and, when needed, in cabin using injection of hypoxic (oxygen-depleted) air produced onboard in an air-separation device utilizing the flow and pressure of the bleed air. The same air-separation device allows supplying passengers and crew with unlimited amounts of oxygen for as long as needed. New methods of a rapid fire suppression utilizing the propulsion of water mist or fire-extinguishing foam by hypoxic air are presented. The combination of water mist or foam with hypoxic air allows to present two innovative fire-extinguishing compositions.

A sprinkler system that can be quickly deployed for preventing brush and forest fires from engulfing a home. The system includes at least one assembly with a sprinkler on a base. The base straddles the roof ridge. The base adjusts to different roof pitches. The assemblies include hose interfaces to allow connection of a hose routed from a water supply. A fire retardant solution or fire fighting foam can be added downstream of the supply. The sprinklers wet the rooftop and a portion of the surrounding grounds. An optional pump and independent power supply can be added to route water from an available reservoir.

The disclosed invention relates to novel biocompatible firefighting foam compositions that include a deep eutectic solvent. Disclosed are methods of making and using firefighting foams containing deep eutectic solvents, which may also be used in existing fire foam compositions as drop in solvent additives. The deep eutectic solvents may also be used in or as a principle component of surrogate firefighting foam compositions.

Fire foam concentrates are provided that contain trimethyl glycine as a freeze suppressant, an effective amount of at least one anionic, zwitterionic or nonionic surfactant, and an effective amount of a foam stabilizing agent. Methods of preparing fire fighting foams from the concentrates, and methods of fighting fires using these foams, also are provided.

An extendible firefighting nozzle and supply mechanism for use in penetrating materials and debris for fighting concealed fires in, for example, coal supply, bulk wood chip and combustible grain silo fire incidents. The system includes three primary components to deliver firefighting foam, water and / or inert gas to the fire area. The components include a distribution manifold, a sectional delivery piping extension and interchangeable spray nozzles that are tailored to the specific need. The manifold is a length of piping having handles for the operator to grip and reliably use the system, a hammer cap that allows the user to employ a sledge hammer or impact driver to assist in driving the system into the debris pile or fire area and an output end that interfaces with a nozzle of any number of extension pipes. The interface is modular and threaded using NPTM threading to allow extensions to be added or removed depending on the depth of penetration required.

The invention discloses an annular foam fire extinguishing system of an oil storage tank. The annular foam fire extinguishing system is characterized in that a buoyancy bracket floating on the oil surface and a fire extinguishing foam spraying device are arranged inside the oil storage tank; the fire extinguishing foam spraying device communicates with a fire extinguishing foam feeding device at the outer part of the oil storage tank through a pipeline; supporting floating balls are arranged at the bottom of the buoyancy bracket; the fire extinguishing foam spraying device comprises a foam buffer collector arranged at the circle center part of an aluminum alloy ring and eight fire extinguishing foam conveying tubes which are uniformly and radially distributed on the periphery of the foam buffer collector; the eight fire extinguishing foam conveying tubes are positioned in the same plane; the near-ends of the fire extinguishing foam conveying tubes communicate with the foam buffer collector, and the far-ends of the fire extinguishing foam conveying tubes communicate with an annular fire extinguishing foam tube; and a plurality of fire extinguishing foam outflow holes are uniformly formed in the annular fire extinguishing foam tube in the circumferential direction. According to the annular foam fire extinguishing system, fire extinguishing foam outlets always keep constant distance with the liquid surface, so that the purpose that the fire extinguishing foam is effectively saved is achieved.

A water soluble dispersant extender enhances the effectiveness and stability of hydrophobic compounds applied from aqueous solution. The invention is well suited for fluorochemical compounds applied to a substrate to impart grease and oil resistance. Exemplary substrates include paper, textiles, nonwoven, carpet and the like. The invention is also useful in firefighting foams that employ hydrophobic fluorochemical fire suppressing compounds. The present stabilizer is believed to form an inclusion complex with the hydrophobic compound whereby enhanced dispersion and solubility over the surface of the substrate allows more efficient use of the hydrophobic compound so that either less compound can be used with the same efficacy or greater efficacy is seen with the same level of active ingredient.

The invention relates to an equipment part of a foam fire-fighting system, in particular to a gas-liquid proportioning mixed foam maker of a compressed gas foam fire-fighting system. The gas-liquid proportioning mixed foam maker of the compressed gas foam fire-fighting system comprises a shell and a mixed foaming chamber, wherein the mixed foaming chamber fully occupies the middle inside the shell; the input end of the mixed foaming chamber is communicated with a foam liquid inlet pipe and a gas chamber; the gas chamber is communicated with a compressed gas inlet pipe; the output end of the mixed foaming chamber is communicated with an output chamber; and an auxiliary mixed foaming medium is arranged in the mixed foaming chamber. In the gas-liquid proportioning mixed foam maker disclosed by the invention, the mixed foaming chamber is additionally arranged, and the auxiliary mixed foaming medium is arranged in the mixed foaming chamber, therefore, foaming multiples are increased, foaming efficiency reaches 100 percent and high utilization ratio of water and foam liquid and a good fire-fighting effect are achieved; output fire-fighting foams can be adhered to protected objects and have long drainage time and burn resistant time, and therefore, after-combustion is effectively prevented; and the output fire-fighting foams have light weight so that a water hose filled with the fire-fighting foams is very light, and the water hose can be moved to a very high position and easily and forcedly deliver the fire-fighting foams to a height more than 200 meters.

The invention relates to detection equipment for the foaming effect and oil surface stability of extinguishing foam and a detection method thereof, in particular to a test system for the foaming times and oil surface stability of three-phase foam and a test method thereof. The test system comprises a foam supply system, an experiment system and a recording system. The foam supply system is arranged on the upper portion of the experiment system, and the recording system is located on the middle portion and the lower portion of the experiment system. The foam supply system comprises a three-phase foam delivery pipe, the front end of the three-phase foam delivery pipe is connected with a three-phase foam generation device, and the rear end of the three-phase foam delivery pipe is located on the upper portion of the experiment system. The experiment system comprises a bottomless measuring cylinder with scales, a separating funnel, a glass jacket, a connecting pipe, a beaker and a triangular support. The recording system comprises a first electronic balance, a second electronic balance and a vidicon; the first electronic balance is located under the triangular support, the second electronic balance is located under the beaker, and the vidicon and the bottomless measuring cylinder with scales are located at the same height; the first electronic balance, the second electronic balance and the vidicon in the recording system are connected with a computer through signal data transmission lines to record data in real time.

The present invention is directed to fluorine-free firefighting foams containing one or more biopolymers. The biopolymers of the compositions of the present invention include for example, diutan, guar, xanthan, scleroglucan, and combinations thereof.

The invention discloses a bentonite flame retardant foaming agent. The technical scheme is characterized in that the bentonite flame retardant foaming agent comprises activated clay, high-viscosity attapulgite clay powder, sodium bicarbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate. Ingredients of the bentonite flame retardant foaming agent are stirred, milled and packaged to obtain finished products of the bentonite flame retardant foaming agent. After the bentonite flame retardant foaming agent is mixed with water and stirred at a high speed, a large quantity of gas is rapidly released and porous foam mud is formed and directly ejected through a high-pressure water gun to put out a fire; the foam mud stably covers the surface layer of combustible materials to form a foam mud film, the foam mud film is capable of rapidly isolating the combustible materials from air and combustible materials are prevented from burning away, so that the purposes of flame retardance and fire extinguishment are reached; and the bentonite flame retardant foaming agent is suitable for the production of flame retardant and fire extinguishing products, lightweight boards, lightweight walls, sound absorbing and noise reducing products.

The invention discloses a zeolite flame-retardant foaming agent. The technical key points are as follows: the zeolite flame-retardant foaming agent comprises activated zeolite, high-viscosity attapulgite clay powder, sodium hydrogen carbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate. The finished product of the zeolite flame-retardant foaming agent is prepared by stirring, grinding and packaging the ingredients. Water is added into the zeolite flame retardant foaming agent, and a great deal of gas is rapidly released after the water solution is stirred at high speed, so that porous foam slurry can be formed; the foam slurry is jetted by a high-pressure water gun so as to be directly used for putting out a fire; the foam slurry is stably covered on the surface layer of combustible material so as to form a foam slurry film; and the foam slurry film can rapidly isolate the contact between the combustible material and the air, and the combustible material is prevented from continuously burning, so that the aims of inflaming retarding and extinguishing a fire can be achieved. The zeolite flame-retardant foaming agent is suitable for producing light weight boards, light weight walls and noise reduction products which have inflaming retarding and fire extinguishing functions.

It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.

The invention discloses a fixed and moving combination compressed air foam fire extinguishing system suitable for a super high-rise building and a design method of the fixed and moving combination compressed air foam fire extinguishing system. In order to achieve fire extinguishment of the super high-rise building which is characterized in that the height is larger than the effective conveying height of a compressed air foam system, the fixed and moving combination compressed air foam fire extinguishing system can effectively convey compressed air foam to each floor of the super high-rise building to conduct fire extinguishment through a fixed and moving combination method, specifically, the building height of the super high-rise building is larger than the effective conveying height of the compressed air foam system, and therefore the problem that fire extinguishing media are not easily upwards conveyed to the super high-rise building is solved. According to the fixed and moving combination compressed air foam fire extinguishing system, a vertical firefighting pipe is partitioned by electric butterfly valves, and therefore when a fire happens, the corresponding electric butterflyvalve can be closed according to the fire occurrence position, the time of the process that the fire extinguishing foam is conveyed to the floor where the fire happens can be shortened, and the phenomenon that due to the fact that the pressure of the bottom end of a pipeline is excessively high, a pipe fitting is damaged is avoided.

A foam delivery system for delivering firefighting foam solution to a firefighting bucket that is suspended by at least one cable from a helicopter. A firefighting foam solution is carried aboard the helicopter in one or more foam storage containers. The foam delivery system facilitates the delivery of the foam solution to the bucket and facilitates the mixture of the delivered foam solution with the water, the resultant mixture being effective in fighting fires, in one embodiment, more effective than the use of water alone. The foam solution is delivered from the cabin to the firefighting bucket through a hose. The hose includes a container segment and a bucket segment, the two segments detachably coupled together by an automatic release coupling system.

The invention discloses a radial foam fire extinguishing system for an oil storage tank: a buoyancy support suspended on the oil surface is arranged in the oil storage tank, a fire extinguishing foam injection device is fixedly installed on the buoyancy support, and the fire extinguishing foam injection device passes through the pipeline and the oil storage The fire extinguishing foam supply device outside the tank is connected; the fire extinguishing foam injection device is composed of a buffer concentrator located at the center of the buoyancy support and eight nozzles radially and equally distributed on the outer periphery of the buffer concentrator. In the plane, they are respectively connected with the buffer concentrator, and the spray holes are arranged at intervals along the length direction with openings facing downward and at a proper height from the liquid surface. The invention saves fire extinguishing agent (more than half), has good fire extinguishing effect and high efficiency, and is suitable for fire extinguishing of various fixed-roof oil storage tanks; meanwhile, it can also be popularized and applied to fire extinguishing of various flammable liquid fixed-roof storage tanks.

The present invention relates to a method for producing compressed-air foam and to a corresponding device. The method comprises providing fire-fighting water admixed with foaming agent, and foaming the fire-fighting water admixed with foaming agent, with addition of compressed gas, wherein the compressed gas comprises a chemical extinguishing agent. The method according to the invention and the device according to the invention allow the production of an effective extinguishing foam due to the inhibitory effect of the chemical extinguishing agent.

The invention discloses a flame-retardant foaming agent of attapulgite. The main points of the technical scheme are that the flame-retardant foaming agent of attapulgite is prepared from active attapulgite clay, high-viscosity attapulgite clay powder, sodium bicarbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate. Ingredients are agitated, milled and packaged into the product of the flame-retardant foaming agent of attapulgite; a lot of gases are rapidly released after water is added to the flame-retardant foaming agent of attapulgite to agitate at a high speed, so as to form porous foam mud; the foam mud is jet through a high-pressure water gun and directly used for putting out a fire; the foam mud is stably covered at the surface of a combustible material to form a foam mud film; and the foam mud film can rapidly prevent the combustible material from contacting air, and prevents the combustible material from continuing to burn, so as to achieve the targets of retarding inflaming and putting out the fire. The flame-retardant foaming agent of the attapulgite is suitable for producing flame-retardant quenching, light-board, light-wall and noise-reducing products.

An improved fire extinguishing, suppressing, and preventing mixture, method, and system for various classifications of fires which exhibits superior characteristics to knock down the fire, helps to prevent flash and re-ignition, and contains only a trace amount of fluorochemicals. When the mixture is spread on burning surfaces, including fuel and other liquid surfaces, the agent suppresses vaporization, extinguishes flames and helps to suppress re-ignition and reflash of the fire. The mixture is friendly to the environment. It causes no harmful reaction to a burn victim and aids in cooling the victim to slow the burning of skin. The mixture can be washed off a bum victim with soap and water. Other embodiments are described herein.

An integrated trailer chassis hold down system / firefighting system can be used, among other purposes, to transport and deploy firefighting foam concentrate from intermediate bulk containers when supplied by a pressurized water source through foam eductors, self educting nozzles, or to resupply foam from a transfer pump for transportation. The trailer chassis can securely fasten intermediate bulk containers, keeping their center of gravity low for safe travel on highways and roads. The trailer chassis can cradle the intermediate bulk container with integrated hold down tabs bolded directly to the chassis. This hold down system allows the intermediate bulk container to sit inside the trailer chassis to keep the center of gravity low and allow the IBC to fit with close tolerance inside the chassis with positive restraint.

The invention provides a lighting-type intelligent venting window, comprising a window frame and a sash connected with the same. The sash includes a frame and tempered glass arranged in the same. Thetempered glass is provided with lighting strips that are arranged on the tempered glass by means of compressing; the lighting strips are arranged at four corners of the tempered glass and are connected with the adjacent sides of the tempered glass. The lighting-type intelligent venting window is connected with an automatic fire extinguishing system that includes a temperature sensor, a smoke sensor and a fire extinguishing component; both the temperature sensor and the smoke sensor are connected to the fire extinguishing component through a wireless processor; the fire extinguishing componentincludes a firefighting liquid tank, a firefighting pipeline and a foam box; a firefighting foam liquid is arranged in the foam box; the foam box is provided with a firefighting pump; the firefightingpump moves to squeeze the firefighting foam liquid into the firefighting liquid tank; the foam box is connected with the firefighting liquid tank; the firefighting liquid tank is connected with the firefighting pipeline; the tail end of the firefighting pipeline is provided with a pipeline nozzle that sprays the firefighting liquid to extinguish a fire.

The invention discloses a bauxite flame-retardant foaming agent. According to the technical scheme, the bauxite flame-retardant foaming agent consists of high bauxite clinker, high-adhesive attapulgite clay powder, sodium bicarbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate. The ingredients of the bauxite flame-retardant foaming agent are stirred, ground and packaged to form the finished bauxite flame-retardant foaming agent. Water is added into the bauxite flame-retardant foaming agent to be stirred at a high speed, lots of gases are released rapidly, porous foamed mud is formed, the foamed mud is sprayed through a high-pressure water gun and is directly used for extinguishment, the foamed mud is stably covered on the surface layer of a combustible material to form a foamed mud film, the foamed mud film can rapidly isolate the contact between the combustible material and air, and the combustible material is prevented from being continuously combusted, so that the flame retarding and fire extinction are fulfilled; and the bauxite flame-retardant foaming agent is suitable for producing flame-retardant and fire-extinguishing products, light plates, light walls and noise-reducing products.

The invention discloses special cocamidopropyl betaine for a firefighting foam extinguishing agent and a preparation method of the special cocamidopropyl betaine and relates to the field of fire technology. The preparation method comprises the following steps: keeping warm and reacting dimethyl propanediamine and medium chain triglycerides till the content of dimethylaminopropyl amide in a mixed system is greater than 95% under KOH catalysis and nitrogen protection; cooling the materials, adding a sodium chloroacetate aqueous solution, and reacting till the content of an active substance in the system which is measured by using a phosphotungstic acid method is 29 + / - 2%; and finally adding lauramidopropyl betaine to the system to form a mixture. The process is short in reaction time, and the special cocamidopropyl betaine is applied to a freshwater type aqueous film-forming foam extinguishing agent and a seawater resistant type aqueous film-forming foam extinguishing agent.

The invention discloses a pulverized fuel ash flame retardant foaming agent. The technical scheme has the following key points: the pulverized fuel ash flame retardant foaming agent comprises dried pulverized fuel ash, high-viscosity attapulgite clay powder, sodium hydrogen carbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate. The finished product of the pulverized fuel ash flame retardant foaming agent is prepared by stirring, grinding and packaging the ingredients. Water is added into the pulverized fuel ash flame retardant foaming agent, and a great deal of gas is rapidly released after the water solution is stirred at high speed, so that porous foam slurry can be formed; the foam slurry is jetted by a high-pressure water gun so as to be directly used for putting out a fire; the foam slurry is stably covered on the surface layer of a combustible material so as to form a foam slurry film; and the foam slurry film can rapidly isolate the contact between the combustible material and the air, and the combustible material is prevented from continuously burning, so that the aims of inflaming retarding and extinguishing a fire can be achieved. The pulverized fuel ash flame retardant foaming agent is suitable for producing light weight boards, light weight walls and noise reduction products which have inflaming retarding and fire extinguishing functions.

The invention discloses a rectorite flame-retardant foaming agent, wherein the essential of the technical scheme is as follows: the rectorite flame-retardant foaming agent is composed of dried rectorite, high-viscosity attapulgite clay powder, sodium bicarbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate; the rectorite flame-retardant foaming agent finished product is obtained by stirring, grinding and packaging the ingredients of the rectorite flame-retardant foaming agent; after the rectorite flame-retardant foaming agent is stirred with water at a high speed, lots of gas is rapidly released to form porous foam mud, the foam mud is injected via a high-pressure water gun and directly used for fire extinguishment; the foam mud is stably covered on the surface layer of a combustible material to form a foam mud film; and the foam mud film can be used for rapidly blocking the contact between the combustible material and air, and preventing the combustible material from continuing to combust, so as to achieve the purposes of flame retardance and fire extinguishment. The products produced by the rectorite flame-retardant foaming agent are capable of effectively realizing flame retardance and fire extinguishment, have the functions of controlling noise pollution, insulating heat and purifying air, and are suitable for producing flame-retardant and fire-extinguishing products, light plates, light wall bodies, and silencing and noise-reducing products.