81 results about "Firefighting foam" patented technology

The utility model provides a platform for testing spreading performance of fire extinguishing foam. The platform comprises a test box body with an upper opening, a heating assembly and a test assembly, the test box body comprises a visual loading container and a hollow support located at the bottom of the visual loading container, and the visual loading container is used for loading target combustible liquid; the heating assembly comprises a heating plate, the heating plate is arranged between the bottom of the visible loading container and the hollow support, and the heating plate is used for heating the target combustible liquid in the visible loading container; a foam spray head is further arranged above the visible loading container; and the test assembly is used for recording corresponding data in the foam spreading performance test. The utility model aims to provide a spreadability test platform for different types of fuel oil surfaces and fire extinguishing foam spreadability tests for high-temperature fuel oil surfaces and different types of high-temperature fuel oil combustion surfaces, so as to improve the authenticity of simulating petrochemical fire scenes.

The invention discloses wide-temperature-range self-repairing gradient ceramic fire extinguishing foam, a preparation method and application of the foam in an electrochemical energy storage device, and belongs to the technical field of new energy battery safety. Aiming at the technical bottleneck of a traditional fire extinguishing material in coping with a thermal runaway fire disaster of an electrochemical energy storage device, the defects of an existing material in the aspects of extreme temperature adaptability, electrolyte compatibility and long-acting flame retardance are overcome through unique three-layer gradient structure design and material innovation; the technical bottlenecks of wide temperature range stability, an intelligent response mechanism and after-combustion blocking capacity are broken through, the ultra-wide temperature range structural stability from-50 DEG C to 1600 DEG C is achieved, millisecond-level response to different electrolytes is achieved, and a self-repairing barrier after fire extinguishment can be built. The innovation point is that the gradient ceramic structure design, the dynamic response mechanism and the self-repairing circulating system are adopted, so that the equal-depth fire reignition rate of the lithium battery can be obviously reduced, and the application prospect is wide.

The invention provides a water / foam circulating system, and relates to the technical field of emergency fire-fighting equipment around petrochemical fires, and the water / foam circulating system comprises a circulating device which is used for generating fire-fighting water / fire-fighting foam according to test requirements; and the water spraying device is connected with the circulating device and is used for spraying fire-fighting water / fire-fighting foam to the target spraying object. The water / foam circulation system provided by the invention can realize water / foam circulation, and the heat radiation tolerance limit value of the water / foam circulation system can be determined through a water / foam circulation test method.

The invention discloses a fire extinguishing agent, and relates to the technical field of fire extinguishing agent production, the fire extinguishing agent comprises a foaming agent, an emulsifier, a foam stabilizer, an antifreeze agent, a preservative and water, and the volume ratio of the foaming agent to the emulsifier to the foam stabilizer to the antifreeze agent to the preservative to the water is (25-40): (3-5): (25-40): (0.1-3): (2-41.9); the foaming agent comprises an ionic surface active agent and a nonionic surface active agent, and the volume ratio of the ionic surface active agent to the nonionic surface active agent in the foaming agent is 1: (5-45). Wherein the foaming agent reduces the conductivity of the fire extinguishing agent, so that the conductivity of a stock solution is 1t; the conductivity of the generated foam is lower than 100 [mu] S / cm, and the foam is suitable for extinguishing battery fire disasters. The fire extinguishing agent is used in combination with a compressed air foam system, and fire extinguishing foam with a uniform and stable structure can be generated in different mixing ratios, gas-liquid ratios and working pressure states.

The invention relates to an underground substation compressed air foam fire extinguishing system and fire extinguishing method, and the underground substation compressed air foam fire extinguishing system is characterized in that the underground substation compressed air foam fire extinguishing system comprises a fire monitoring unit, a fire extinguishing control system, a compressed air foam generating unit, a compressed air foam releasing unit and a fire extinguishing standby input unit, a fire early warning signal is monitored and sent to the fire extinguishing control system, the fire extinguishing control system processes the received fire early warning signal and then outputs a control signal to the compressed air foam generating unit, and the compressed air foam releasing unit sprays compressed air foam to extinguish fire. An interface of the fire extinguishing standby input unit is arranged outside the underground transformer substation, and fire extinguishing and cooling are carried out on the interior of the transformer chamber by utilizing the fire extinguishing foam release unit through external fire fighting equipment. The system is matched with an underground transformer substation for use, can provide high-performance compressed air foam for fire extinguishing, and is quick in response and high and reliable in fire extinguishing efficiency.

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.

A firefighting foam concentrate that is free or substantially free of fluorosurfactants is disclosed. The firefighting foam concentrate comprises water and from 25% to 38% by weight of a surfactant blend comprising at least one selected cationic quaternary ammonium compound, at least one selected alkyl amine oxide nonionic surfactant, and at least one selected alkyl sulfate anionic surfactant. Each selected surfactant has an average alkyl or alkylene carbon chain length of 8-10 carbon atoms. The firefighting foam concentrate may be combined with other firefighting foam components to form a firefighting foam composition. Also disclosed is a method of fighting a fire comprising aerating the firefighting foam composition containing the surfactant blend to form a firefighting foam that is applied to a fire or the surface of a volatile flammable liquid.

The present invention relates generally to nanoparticle-stabilized fire-fighting foam concentrates, fire-fighting foam solutions, and fire-fighting foams prepared from the concentrates or solutions of the present invention that contain one or more silica nanoparticles (e.g., silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, surface modified silica nanoparticles) and any one or all of one or more components selected from the group consisting of one or more organic solvents, one or more surfactants, one or more biopolymers, and one or more alcohols. The invention also relates to a method for increasing the resistance of fire-fighting foams to polar solvents. The present invention also relates to methods of making fire foam concentrates comprising silica nanoparticles (e.g., surface-modified silica nanoparticles).

A foam stabilizing composition comprises (A) an anionic polymer and (B) a siloxane cationic surfactant comprising a cationic moiety having the formula Z1-D1-N(Y)a(R)2-a, wherein Z1 is a siloxane moiety, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each Y has formula -D-NR13+, where D is a divalent linking group and each R1 is independently an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms. An aqueous foam comprising the composition and method of using the same are also disclosed.

A firefighting foam concentrate having a sugar component including a monosaccharide sugar, a sugar alcohol, or a mixture of any two or more thereof; a surfactant component comprising an anionic surfactant, a zwitterionic surfactant, or a mixture of any two or more thereof; and a suspension agent including microfibrillated cellulose and an oligosaccharide, a polysaccharide, or a mixture of any two or more thereof; wherein the composition is substantially free of fluorinated compounds.

The invention relates to the field of emergency fire fighting, in particular to a dangerous chemical storage tank area emergency fire fighting foam spraying integrated device which comprises a pipe head, a connecting plug block is arranged on the pipe head in a limiting and penetrating mode, the end, close to the connecting plug block, of the pipe head extends outwards to form a connecting frame, and a base plate is arranged at the end, away from the pipe head, of the connecting frame. A telescopic end is jointly connected between the connecting plug block and the base plate so as to control the connecting plug block to slide to be separated from the pipe head; through sliding fit between the connecting sliding rod and the mounting sleeve, the connecting plug block is driven to be separated from the pipe head or driven to seal the pipe head, the situation that the pipe head is unlocked by using a fragile glass body is avoided, the problem that glass fragments block a pipeline is solved, and meanwhile the pipe connector has the advantage of being capable of being repeatedly used.

The invention discloses a new energy fire fighting disposal vehicle which comprises a cab and a rear compartment, a movable integrated box is arranged in the rear compartment, and the integrated box is integrated with a water tank part, an agent bin and an electric control room. And efficient fire extinguishing foam is generated. The new energy fire extinguishing and disposing vehicle can be matched with a novel fire extinguishing agent, has the advantages of automatic operation, environmental protection, high efficiency and the like, and is suitable for rapid extinguishing of new energy vehicle lithium battery fire.

The positive pressure multi-dose combined foam fire extinguishing system comprises a foam proportioning device, a mixed gas supply device, a gas-liquid mixer and a foam releasing device; a mixed liquid flow meter is connected with the inlet of a liquid flow regulating valve through a pipeline, the liquid flow regulating valve is connected with one inlet of the gas-liquid mixer, and the other inlet of the gas-liquid mixer is connected with the mixed gas supply device; the mixed gas supply device provides air mixed gas of chemical extinguishing agent, and the mixed gas supply device controls the proportion of the mixed gas injected into the foam mixed liquid according to the size of the foam mixed liquid flow meter; the gas-liquid mixer fully mixes the foam mixed liquid with the mixed gas to foam, and forms fire extinguishing foam with physical and chemical inhibition functions, which is delivered to the foam releasing device through a pipeline. The scheme combines the fire control and cooling and temperature reduction performance of compressed air foam on low-boiling-point flammable liquid fire and the advantages of chemical gas foam on oil vapor afterfire fire extinguishing, and is fast and efficient.

This invention discloses a fire extinguishing and explosion-proof device and its foam generating front end, comprising a shell with chambers. The foam generating front end has a foam spraying channel, a first liquid input channel, and a first gas input channel. Valves are installed in both the first liquid input channel and the first gas input channel. A foaming net is installed inside the shell to divide the chambers into a mixing chamber and a foaming chamber. The foaming chamber is connected to the foam spraying channel, and the mixing chamber is connected to both the first liquid input channel and the first gas input channel. This invention enhances the gas-liquid mixing effect, improves the foaming rate and foam fire extinguishing effect by mixing the gas-liquid mixture multiple times in a primary mixing chamber, a primary mixing chamber, a secondary mixing chamber, and a tertiary mixing chamber before foaming. It can also generate different types of fire extinguishing foam. Combined with different fire extinguishing methods, it can be applied to different types of fire scenarios in energy storage battery thermal safety management systems, enriching the functionality of this invention.

The utility model discloses a folding fire extinguishing foam collection and adhesion performance detection device which comprises a base and a bearing plate, one side of the bearing plate is symmetrically bent towards the back to form a bearing plate hinge seat, one side of the base is symmetrically bent towards the front to form a base hinge seat, the bearing plate hinge seat and the base hinge seat are installed through a supporting arm, and the bearing plate hinge seat and the base hinge seat are connected through a connecting rod. Through the arrangement of the supporting arms, the height and angle of the bearing plate are adjusted, and bearing flanges are symmetrically bent towards the front face of the bearing plate at the ends of the same side or the two sides of the bearing plate and used for testing foam performance parameters such as foaming times and 25% drainage time. By arranging the receiving plate, the adhesion performance of the foam on the surfaces of different plates can be tested; through the folding arm structure, the detection device is small in size and convenient to carry, and meanwhile the bottom can be stably fixed to the ground or mechanical equipment.

A fire suppression system is installed and operated on a vehicle, trailer, machine or implement having wheels, bearings, gears or belt operated pulleys using temperature sensors in wireless communication with a central monitoring system to sense an elevated heat event or fire and activate one or more local, zonal or entire unit fire suppression foaming modules to dispense a fire suppression foam to one or more locations on the vehicle, trailer, machine or implement to avoid and suppress the fire or elevated heat event and alert an operator of the vehicle, trailer, machine or implement as to the real time occurrence of the elevated heat or fire event in time to take remedial action to minimize or avoid damage to person or property, including livestock and cargo.

A foam delivery chute to improve the aerial firefighting process of dropping fire suppressant foam onto fires. The chute is made up of fire-resistant material arranged in a Kresling pattern and designed to provide a guide for the fire suppressant foam. This results in much more accurate delivery of foam, thus making the entire process much more efficient and accurate. The chute is extended or retracted by a mechanical shaft system and is operated by the pilot of the aerial vehicle.

A vehicle-mounted trigger type fire extinguishing device comprises an induction device, a control device and a fire extinguishing mechanism, the fire extinguishing mechanism comprises a fire extinguishing foam storage tank, a control valve is installed at a nozzle of the fire extinguishing foam storage tank, high-pressure fire extinguishing foam is stored in the fire extinguishing foam storage tank, the nozzle comprises a spray head, and the spray head is perpendicular to the fire extinguishing foam storage tank. The fire extinguishing device is characterized in that the lower end of the spray head is communicated with a first mounting ring, a second mounting ring is rotationally mounted on the first mounting ring through a sealing bearing, the control valve is fixedly mounted on the second mounting ring, the second mounting ring is communicated with the fire extinguishing foam storage tank, and a plurality of inclined sliding grooves are formed in the inner circumference of the first mounting ring. The fire extinguishing device is simple in structure, ingenious in conception, capable of accurately extinguishing fire sources and extinguishing fire in a large range, suitable for various conditions, capable of improving the safety of the fire extinguishing device, capable of meeting actual requirements and suitable for popularization.

A forest fire suppression system includes one or more satellites having a thermal imaging sensor configured to detect hot spots that are indicative of a forest fire. The satellites are further configured to transmit an alert signal to an emergency authority via a wireless network when a hot spot is detected. An unmanned aerial vehicle (UAV) is remotely controlled by an individual at the emergency authority. The UAV is configured to carry a crate filled with a plurality of fire suppression foam bombs. Each individual fire suppression foam bomb includes a housing configured to be filled with a pressurized foam material, a denotation mechanism, a microcontroller, and an outlet nozzle on the housing. Each individual fire suppression foam bomb is adapted to disperse the foam material when dropped by the UAV from above the forest fire. The system provides a cost-effective and efficient way to detect and extinguish forest fires.

An aqueous fire-fighting foam concentrate includes a disaccharide sugar; a surfactant component selected from an anionic surfactant and a zwitterionic surfactant; a water-miscible organic solvent; at least about 30 wt % water; and optionally includes a polysaccharide thickener and / or a nonionic surfactant. The fire-fighting foam concentrate does not include a monosaccharide sugar and does not include a eutectic solvent.

The utility model discloses a fire extinguishing foam generator which comprises a back seat and a fire extinguishing foam generator body, the back seat is vertically arranged in the transverse direction, and a dismounting assembly is installed on the front portion of the back seat. The fire extinguishing foam generator body is arranged in the longitudinal direction, the rear end of the fire extinguishing foam generator body is fixed to the front portion of the dismounting and mounting assembly through a connecting piece, and the fire extinguishing foam generator body is detachably connected with the back seat through the dismounting and mounting assembly. The fire extinguishing foam generator has the advantages that the fixing seat and the fire extinguishing foam generator body can be detachably fixed to the front portion of the back seat in the mode that the stud is in vertical sliding fit with the sliding groove and the locking nut is tightened and pressed on the side end face of the back seat, and the combination mode of the fixing seat, the fire extinguishing foam generator body and the back seat is simple and easy to operate; and then the fixing base and the fire extinguishing foam generator body can be properly fixed when the fire extinguishing foam generator is not used, and accidental falling damage is prevented.

The invention discloses a positive pressure type multi-agent combined foam fire extinguishing system. The device comprises a foam proportion mixing device, a mixed gas supply device, a gas-liquid mixer and a foam release device. The mixed liquid flowmeter is connected with an inlet of the liquid flow regulating valve through a pipeline, the liquid flow regulating valve is connected with one inlet of the gas-liquid mixer, and the other inlet of the gas-liquid mixer is connected with the mixed gas supply device; the mixed gas supply device provides a chemical fire extinguishing agent and air mixed gas, and the mixed gas supply device controls the proportion of the mixed gas injected into the foam mixed liquid according to the size of the foam mixed liquid flow meter; the gas-liquid mixer is used for fully mixing and foaming the foam mixed liquid and the mixed gas to form fire extinguishing foam with physical and chemical inhibition functions, and the fire extinguishing foam is conveyed to the foam release device through a pipeline. According to the scheme, the advantages of fire control and cooling performance of compressed air foam on low-boiling-point flammable liquid fire disasters and rapid and efficient fire extinguishing of chemical gas foam on oil steam remaining fire are combined.

In some embodiments, a firefighting solution can include: water; a firefighting foam stabilizer the can include an ionic liquid surfactant and a nanoparticle encapsulating a second ionic liquid surfactant. In some embodiments, a firefighting solution can include water, an ionic liquid surfactant, and a firefighting foam stabilizer comprising a metallosurfactant.

A floor nozzle assembly and systems and methods thereof for delivering a fire suppressant foam to a protected area. The nozzle assembly has a body and deflector in contact with one another to form a plurality of passageways through which a fire suppressant flows. The deflector has a deflector flange and a plurality of projecting members in contact with the body to form the passageways. The nozzle assembly has one or more of the following: i) a radial outer portion at each projecting member having a plurality of curved edges with at least two different curvatures; ii) each passageway is formed by parallel planar sidewalls; iii) the projecting members extend radially over a majority radial length of the deflector flange; and / or iv) the deflector flange has, with respect to a horizontal, a surface at an angle that is less than a support surface of the nozzle body.

The utility model discloses a wind energy system fire control automatic complete equipment belongs to fire control technical field, including base, the both ends of base all are provided with a plurality of support seat, between adjacent two support seat and base and the support seat close to base all are inserted and cooperate and use, the lateral surface fixed mounting of support seat has installation piece no.

An aqueous composition, which can be diluted with an aqueous diluent to provide a foam precursor composition, is provided. The foam precursor composition can be aerated to form a firefighting foam. The present aqueous firefighting compositions include a surfactant mixture containing a siloxane-based surfactant together with one or more of a nonionic surfactant, an anionic surfactant, and a zwitterionic surfactant. The aqueous firefighting compositions also include a polysaccharide thickener and an organic solvent, such as an alkylene glycol, glycerol and / or a glycol ether.

The utility model relates to the technical field of aluminum alloy anti-theft doors, and discloses a sound insulation and heat preservation aluminum alloy anti-theft door which comprises a door frame. The anti-theft door body is fixedly connected into the door frame. The door locks are arranged on the front and rear sides of the security door body; the inner cavity is formed in the anti-theft door body; the spray pipe is fixedly connected to the outside of the anti-theft door body; the fireproof device is arranged in the inner cavity and used for blocking fire spreading when a fire occurs, the fireproof device comprises a blocking assembly and a triggering assembly, the blocking assembly comprises a storage frame, a hydraulic push rod and a pressing plate, the storage frame is fixedly connected to the inner wall of the inner cavity, the hydraulic push rod is fixedly connected to the top of the inner cavity, and the pressing plate is fixedly connected to the inner wall of the inner cavity. The pressing plate is fixedly connected to the output end of the hydraulic push rod. According to the sound insulation and heat preservation aluminum alloy anti-theft door, by arranging the fireproof device, when a fire occurs, the blocking assembly can be automatically triggered, fire spreading is prevented by spraying fire extinguishing foam, and safety is improved.

The utility model provides a convenient fire extinguishing foam quality detection device which comprises a walking platform, a first tank body is fixedly installed on the upper surface of the walking platform, a second tank body is fixedly installed on the upper surface of the walking platform on one side of the first tank body, and a second pipe body is fixedly installed on one side of the second tank body. One end of the second pipe body is communicated with the interior of the second tank body, a first pipe body is fixedly installed on the side, away from the second pipe body, of the second tank body, the first pipe body is communicated with the interior of the second tank body, and the end, away from the second tank body, of the first pipe body is communicated with the interior of the first tank body; according to the utility model, through the arrangement of the rectangular block, the through hole, the limiting block, the spring and the sealing ring, the air inlet pipe can be conveniently installed, the sealing performance of the connection between the air inlet pipe and the bent pipe is improved under the action of the sealing ring, and the influence of gas overflow on the detection result is effectively prevented.

The utility model relates to the technical field of coal mine fire fighting, in particular to movable fire extinguishing equipment for a coal mine, which comprises a storage structure, an injection structure and a direction adjusting structure, the storage structure comprises a water storage tank, and a foam tank is fixedly mounted on the front side of the water storage tank; the spraying structure comprises a first rotating seat; the first rotating seat is fixedly mounted on the upper surface of the foam tank; the direction adjusting structure comprises a second supporting rod, the second supporting rod is fixedly installed on the upper surface of the foam tank, and a second hinge seat is rotationally installed at the upper end of the second supporting rod and hinged to the bottom side of the control rod. According to the utility model, the control rod is endowed with the capability of freely rotating within a certain range in the transverse direction and the vertical direction through the mutually vertical rotating directions of the upper end and the lower end of the second hinge seat, the control rod is used for controlling the spraying structure to adjust the orientation, and the foam spraying direction can be freely adjusted within a certain range while the orientation of the whole device is not moved; the fire-extinguishing foam coverage range is effectively increased, and the fire-extinguishing effect is improved.

A floor nozzle assembly and systems and methods including means for generating and distributing a firefighting foam. The means generates and distributes a fluorine-free foam having an effective foam quality for total coverage over a floor area of at least 25 ft.×25 ft. at an application density of at least 0.1 GPM / SQ. FT with the floor area having a slope of 1 in: 8 ft.