61 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 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.

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 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.

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 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.

A gas-driven mechanical pumping type foam fire extinguishing system is provided with a compressed gas tank, a pressure water tank, a water turbine and a foam pump, inert compressed gas is used for providing pressure, water in the water tank is pressed out, and the water turbine is driven to rotate to drive the foam pump, so that efficient and stable fire extinguishing foam is generated; the water turbine drives the foam pump, efficient and accurate foam mixing is achieved, dependence on electric power or a diesel engine is avoided, and meanwhile system complexity and energy consumption are reduced.

A method of fighting a fire, the method includes aerating a firefighting foam composition to form an aerated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein the firefighting foam composition includes a surfactant component comprising an anionic surfactant, a zwitterionic surfactant, optionally a nonionic surfactant, or a mixture of any two or more thereof; an aliphatic alcohol-based component comprising at least two compounds selected from C8-C14-aliphatic alcohols and ethoxylates of C10-C14-aliphatic alcohols having an average of no more than about 6 ethylene oxide units; and at least about 30 wt. % water.

A method of fighting a fire includes aerating a firefighting foam composition to form an areated firefighting foam; administering the aerated firefighting foam to a fire or applying the aerated firefighting foam to a surface of a volatile flammable liquid; wherein: the firefighting foam composition includes a sugar component comprising at least about 50 wt. % of a monosaccharide, sugar alcohol, or a mixture of any two or more thereof; a surfactant component comprising an anionic surfactant and a zwitterionic surfactant; and a suspension agent comprising microfibrillated cellulose.

The invention relates to the field of fire fighting equipment, and provides an air-ground collaborative fire extinguishing system which comprises an elevating robot, an unmanned aerial vehicle and a control terminal. A turntable is arranged on the top surface of the elevating robot; an elevating frame, a water supply pipeline and a water supply pump are arranged on the turntable; the elevating robot is provided with a rear supporting wheel set and a front supporting wheel set, and the rear supporting wheel set is provided with hydraulic supporting legs. A thermal detector and a visual detector are arranged on the elevating robot and / or the elevating rack; the unmanned aerial vehicle is provided with a camera unit. And the unmanned aerial vehicle is started to carry out field investigation and confirm environment information, fire conditions and the like, so that a fire extinguishing and rescue scheme can be accurately and quickly formulated. And then, a water supply pump of the elevating robot can be connected with a water pipe, and the elevating robot is elevated through the elevating frame, so that water or fire extinguishing foam is introduced to extinguish fire. The flexibility and maneuverability of the robot are improved, and accurate and efficient fire extinguishing operation can be carried out.

The present invention is directed to fluorine-free firefighting foam concentrates containing one or more solvents, one or more surfactants, one or more alcohols, and one or more biopolymers. The present invention is also directed to firefighting foam solutions and firefighting foams prepared from such concentrates and methods for their use. The present invention is also directed to methods for controlling the viscosity of firefighting foam concentrates, including lowering of the concentrate viscosity as temperature decreases.

The invention discloses an unmanned aerial vehicle fire extinguishing system. The system comprises an unmanned aerial vehicle end, a ground server end, a mixed liquid conveying pipeline and a gas conveying pipeline, wherein the mixed liquid conveying pipeline and the gas conveying pipeline are connected between the unmanned aerial vehicle end and the ground server end; the ground server is used for mixing water and the fire extinguishing foam stock solution into a mixed solution according to a preset proportion, conveying the mixed solution to the unmanned aerial vehicle end along a mixed solution conveying pipeline, and conveying air to the unmanned aerial vehicle end along an air conveying pipeline; and the unmanned aerial vehicle end is used for converging the mixed liquid and air into fire extinguishing foam and spraying the fire extinguishing foam to an ignition point. The fire extinguishing foam is formed by converging at the unmanned aerial vehicle end, so that the fire extinguishing foam in a pipeline can be prevented from being broken or compressed when the unmanned aerial vehicle conveys the fire extinguishing foam, the effective spraying distance of foam liquid at a nozzle of the unmanned aerial vehicle is guaranteed, and the preset fire extinguishing effect is further guaranteed.

This group of inventions relates to the fire suppression field, namely to devices that generate fire-extinguishing gas (a mixture of gases) by burning compositions to produce fire-extinguishing gas (a mixture of gases) without ozone depleting substances. Inventions may be used as autonomous devices to extinguish fires in conventionally sealed spaces and to make other devices using such gas or a mixture of gases to build pressure inside a reservoir (a module) to displace the fire extinguishing substance: powder, water or aqueous solutions and other compositions.The first version of the device with radial leakage of gas and the second version of the device with axial leakage of gas. In the first version of the design, the gas fire suppression device comprises a cylindrical casing with a bottom, a cover and holes for fire extinguishing gas release, a gas generating charge and a start assembly, the casing is equipped with a cassette containing a cylindrical shell, which is permeable for the gaseous combustion products, and a blind bottom. The cassette is joined to the cover and is installed so that a circular clearance is formed between the casing and the cassette, and the gas generating charge is installed inside the cassette, besides, the holes for fire extinguishing gas are placed in the cylindrical wall of the casing. The cassette is equipped with a filtering shell fixed from the outside, and the blind bottom of the cassette is made as capable of detachable connection with the cylindrical shell and is equipped with two circular ledges on the outer surface, the outer and the inner ones, besides, between the outer circular ledge of the cassette bottom and the circular ledge on the bottom there is a circular clearance arranged. Besides, a gas generating composition is proposed as used in the device.The technical result is expansion of the field of application by the option of using both in the form of fire suppression devices generating fire extinguishing gas (a mixture of gases) and designed to extinguish fires of A2, B and C class, and for the systems of fluid and powdered substances purge, as well as for activation of the sol and gel formation process when making a quick-hardening fire extinguishing foam based on foamed hydrogel of silicic acid. The additional technical result consists in enabling production of higher degree of combustion products treatment from finely dispersed phase with the simplified technology of device manufacturing and ensuring convenient operation.

The utility model relates to the technical field of fire fighting equipment, and discloses a novel multidirectional fire extinguishing foam device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a plurality of fixers, the tops of the plurality of fixers are fixedly connected with a foaming cylinder, the top of the foaming cylinder is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the fixing plate. The top of the fixing plate is fixedly connected with a chassis, the top of the chassis is fixedly connected with a motor, the driving end of the motor is movably connected with a rotating cylinder, one end of the rotating cylinder is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with a sliding ball. And the top of the chassis is fixedly connected with an electric push rod. According to the fire extinguishing foam device, multi-angle adjustment of the fire extinguishing foam device in the horizontal direction and the vertical direction is realized, so that foam can be quickly and accurately sprayed to a fire source position, the fire extinguishing efficiency and the coverage range are remarkably improved, and the flexibility and the adaptability of the device are enhanced.