489results about "Fire extinguisher" patented technology

The application discloses a high-efficiency environment-friendly foam extinguishing agent for a converter station or a transformer substation and a preparation method thereof. A structural formula of a quaternary ammonium salt modified tetrasiloxane surfactant used in the extinguishing agent is shown in the specification. The surface tension of the quaternary ammonium salt modified tetrasiloxane surfactant is less than or equal to 20.8 mN / m. The quaternary ammonium salt modified tetrasiloxane surfactant can be specifically applied to development of the high-efficiency environment-friendly foam extinguishing agent for the converter station or the transformer substation. The high-efficiency environment-friendly foam extinguishing agent has excellent foaming performance, stability, extinguishing performance and film forming performance.

The invention belongs to the technical field of coal mine fire prevention and extinguishing, and particularly relates to a composite synergist for improving the grouting performance of fly ash and a preparation method and application of the composite synergist. The composite synergist for improving the grouting performance of the fly ash comprises the following raw materials in parts by weight: 40-60 parts of a dispersing agent, 15-25 parts of a hydrophilic modifier, 15-25 parts of a thickening agent and 5-15 parts of a water-retaining agent. The hydrophilic modifier contained in the composite synergist can firstly improve the surface property of fly ash through chemical bonding, and an ideal platform is provided for efficient adsorption of a dispersing agent; meanwhile, the electrostatic stabilization mechanism provided by the dispersing agent and the steric hindrance mechanism provided by the thickening stabilizer form a dual stabilization system, so that the long-term stability of the slurry under dynamic transportation and static storage is ensured. In addition, the water-retaining agent and the thickening agent jointly construct a three-dimensional water-retaining network, so that water can be effectively locked, and slurry dehydration and particle sedimentation are delayed; the synergistic effect of all the components solves the technical problems that the fly ash slurry is poor in hydrophilicity, easy to settle, easy to block pipes, fast in dehydration and the like.

The invention discloses a microcapsule fire blanket, and relates to the technical field of fire extinguishing devices. The carpet comprises a carpet body, and the surface of the carpet body is covered with fire extinguishing microcapsules and refrigerating microcapsules; the fire extinguishing microcapsule and the refrigeration microcapsule are both of a shell-core structure, the mass ratio of a shell to a core material of the refrigeration microcapsule is 1: (1-9), and the core material comprises but is not limited to one of an F500 aqueous solution, an inorganic salt aqueous solution, pure water or seawater. The fire extinguishing microcapsules are heated and broken to spray out a fire extinguishing agent, chemical fire extinguishing is achieved, meanwhile, the refrigeration microcapsules are heated and broken to spray out a core material F500 aqueous solution, an inorganic salt aqueous solution, pure water or seawater to form water mist, physical cooling is achieved, and the overall fire extinguishing effect is effectively improved through the combined action of the two. And the fire extinguishing blanket is matched to cover a fire source to realize physical isolation of oxygen, so that the overall fire extinguishing efficiency is effectively improved.

The invention discloses a water-based fire extinguishing agent based on inorganic silicon dioxide aerogel loaded metal oxide nanoparticles, a preparation method and application. The fire extinguishing agent is prepared from, by mass, 1%-5% of silicon dioxide aerogel loaded metal oxide nanoparticles, 1%-10% of a foaming agent, 0.1%-2% of a stabilizer, 1%-10% of a flame retardant, 0.5%-5% of an anti-freezing agent, 0.1%-1% of a preservative and the balance water. The silicon dioxide aerogel loaded metal oxide nano-particles are prepared by the following steps: preparing a silicon dioxide aerogel skeleton, preparing metal oxide nano-particles, and modifying, loading and drying silane. The preparation method comprises the following steps: firstly preparing a dispersion liquid A containing the composite particles and a solution B containing the functional additive, and then carrying out mixing and ultrasonic treatment to obtain the product. The fire extinguishing agent can rapidly extinguish 314Ah lithium iron phosphate battery fire, efficiently consumes HF / CO and other gases, and is stable in system, environmentally friendly and suitable for battery fire prevention and control.

The invention discloses an attached fireproof fire extinguishing pad which comprises a first fire extinguishing layer, a second fire extinguishing layer, a heat insulation layer and an adhesive layer which are fixedly connected in sequence. The first fire extinguishing layer and the second fire extinguishing layer are both composed of adhesives and fire extinguishing microcapsules, and each fire extinguishing microcapsule comprises a capsule shell composed of macromolecule resin, low-melting-point paraffin and expanded graphite and a perfluorohexanone capsule core packaged in the capsule shell. The content of an adhesive in the first fire extinguishing layer is high, and the content of fire extinguishing microcapsules is low; and the second fire extinguishing layer is relatively low in adhesive content and relatively high in fire extinguishing micro-capsule content. When in use, the fireproof fire-extinguishing pad is attached to a protective surface through the adhesive layer, and the first fire-extinguishing layer faces a fire position. When a fire occurs, the surface adhesive is heated and melted, the fire extinguishing micro-capsules are released, the micro-capsules are heated and blasted to release perfluorohexanone, and first-time rapid fire extinguishing is achieved. And if the fire behavior is continuous, the second layer is started immediately after the first layer is used up, and a larger dosage of fire extinguishing agent is provided for supplementary fire extinguishing, so that the reliability and continuity of fire extinguishing are remarkably improved.

The invention discloses a fire extinguishing microcapsule with an EVA ultraviolet crosslinking barrier material as a wall material and a preparation process of the fire extinguishing microcapsule. According to the fire extinguishing microcapsule with the EVA ultraviolet crosslinking barrier material as the wall material, the whole fire extinguishing microcapsule is spherical or sphere-like, a composite material of EVA and graphene is used as the wall material, a core material is wrapped in the wall material, the thickness of the wall material is 10-50 microns, and the diameter of the fire extinguishing microcapsule is 300-500 microns. The excellent gas barrier property of the EVA and graphene composite wall material is utilized, volatilization of perfluorohexanone is effectively blocked, the storage stability of the fire extinguishing microcapsule is improved, the service life of the fire extinguishing microcapsule is prolonged, and the effective content of a fire extinguishing agent during fire extinguishing is guaranteed.

A fire suppressant for cooling a battery pack includes a pressurized mixture of a dry chemical and carbon dioxide. The dry chemical is an inorganic particulate chemical. The dry chemical particles are small enough to be carried by a flow of depressurizing carbon dioxide. A mass of the dry chemical is between 5% and 50% of a mass of the carbon dioxide. The carbon dioxide, when depressurized, vaporizes and cools the dry chemical and the battery pack. The dry chemical can adhere to the battery pack when the mixture is depressurized. An amount of the fire suppressant used to cool the battery pack is equal to or greater than an inerting volume of fire suppressant for the battery pack.

According to exemplary embodiments, a battery pack is provided. The battery pack comprises: a pack housing including a base plate and a sidewall; a plurality of battery cell assemblies on the base plate; a lead coupled to the sidewall of the pack housing; and a foaming device configured to discharge a foamed layer into an inner space defined by the pack housing and the lead.

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 battery pack comprising a housing defining a volume and a battery module arranged within the housing, where the battery module comprises a plurality of battery cells configured to provide an electrical output. The battery pack comprising a suppressant canister having a suppressant and positioned within the battery module proximate to the plurality of battery cells, where the suppressant canister is configured to provide the suppressant to the battery module to mitigate a thermal runaway.

Disclosed herein are a composite material, a heat absorbing device, a method for manufacturing same, and uses of the composite material. The composite material and the like can be applied to products or components that generate heat or have the potential for ignition or explosion during operation, storage, and / or maintenance, thus effectively countering the heat, ignition, and explosion. For example, when applied to an article including a plurality of such products or components, the composite material and the like deals with abnormal heat generation, explosion, or ignition that occurs in any one of the components or products and thus is capable of preventing or minimizing the propagation of such heat generation, explosion, or ignition to adjacent components or products.

The application relates to the technical field of insulating flame-retardant fire extinguishing agent preparation, and relates to an insulating flame-retardant fire extinguishing agent and a preparation method thereof.The preparation method comprises the following steps: receiving an insulating flame-retardant fire extinguishing agent preparation instruction, confirming preparation materials and preparation devices according to the insulating flame-retardant fire extinguishing agent preparation instruction, obtaining an optimal mass ratio, weighing ammonium polyphosphate powder, pentaerythritol powder and lignin powder according to the optimal mass ratio, preparing bio-based intumescent flame-retardant component powder, preparing sodium alginate solution and ferric chloride crosslinking solution based on sodium alginate and deionized water, preparing a gel particle set based on the sodium alginate solution and the ferric chloride crosslinking solution, obtaining catalytic carbonization synergistic component powder according to the gel particle set, preparing the insulating flame-retardant fire extinguishing agent based on the bio-based intumescent flame-retardant component powder and the catalytic carbonization synergistic component powder, and completing the preparation of the insulating flame-retardant fire extinguishing agent based on the insulating flame-retardant fire extinguishing agent.The application can realize stable quality and safe and environment-friendly production of the fire extinguishing agent.

To provide electrical equipment with excellent initial fire suppression capabilities that can prevent the occurrence and spread of fires. [Solution] An electrical installation comprising an electrical device and a housing for housing the electrical device, wherein a fire extinguishing element is provided on at least a portion of the inner wall of the housing so as to face the electrical device, and the fire extinguishing element includes a fire extinguishing material formed from a composition comprising a fire extinguishing agent and a binder.

This invention discloses a microcapsule fire extinguishing agent based on a porous material-coated modified core, its preparation method, and its application. The modified core uses high-temperature resistant attapulgite-based porous ceramic particles coated with perfluorohexanone as the extinguishing medium, and gelatin and gum arabic are used to form the capsule wall. The resulting microcapsule fire extinguishing agent based on a porous material-coated modified core can quickly and effectively extinguish lithium-ion battery fires and effectively control the release rate of the extinguishing medium in the microcapsule fire extinguishing agent. Continuous release of the extinguishing medium inhibits the thermal runaway and reignition of lithium-ion batteries. Using high-temperature attapulgite-based porous ceramic particles to coat the modified core improves the storage stability and transportation stability of the microcapsule fire extinguishing agent, ensuring its safe use.

The present invention provides a foam fire extinguishing agent that can fulfill predetermined performances without containing any fluorine-based compounds. The foam fire extinguishing agent of the present invention is characterized by containing 0.2 to 3.0 % by mass of cationic surfactant, 0.2 to 5.0 % by mass of anionic surfactant and water for a total of 100 % by mass.

The invention relates to a pressure drop responsive gas tank, a gas tank opening device and a battery container equipped with a gas tank. The pressure drop responsive gas tank includes: a tank body inside a container, filled with a non-combustible gas, and having a discharge passage configured to discharge the non-combustible gas; and an opening device mounted on the discharge passage and configured to open the discharge passage such that the non-combustible gas is discharged from the tank body when an internal pressure of the container is below atmospheric pressure.

To provide an electrical apparatus that can prevent the occurrence and spread of a fire and has a superior initial fire extinguishing capability.SOLUTION: An electrical apparatus comprises an electrical device and a housing for accommodating the electrical device. At least a portion of the inner wall of the housing is provided with a fire extinguisher to face the electrical device. The fire extinguisher comprises a fire extinguishing material composed of a molded composition comprising a fire extinguishing agent and a binder.SELECTED DRAWING: Figure 3

The invention relates to the use of an item of protective clothing, preferably in the form of protective underclothing (protective underwear), for protecting people against an action of and / or contamination with polycyclic aromatic hydrocarbons (PAC) released from a contamination source when staying and / or working in locations in which polycyclic aromatic hydrocarbons are released or present, and / or for protecting people exposed to an action of polycyclic aromatic hydrocarbons against a contamination ("PAC contamination"), in particular to prevent or minimise contamination ("PAC contamination").

Disclosed is a composition which is applied to products or elements generating heat or having possibility of ignition or explosion during driving, storage and / or maintenance processes. The composition is capable of effectively responding to the heat, ignition, and explosion. For example, the composition is applied to an article comprising a plurality of the products or elements. The composition is capable of responding to abnormal heat generation, explosion, and ignition occurring in any one element or product, and capable of preventing or minimizing propagation of such heat generation, explosion, and ignition to other adjacent elements or products. The composition also exhibits excellent handleability and storage stability.

This invention relates to the field of fire prevention and extinguishing technology in goaf areas, and proposes a fire prevention and extinguishing material and method for goaf areas. The fire prevention and extinguishing material comprises the following raw materials in parts by weight: 60-80 parts water, 50-60 parts fly ash, 15-25 parts calcium carbide sludge, 5-10 parts polyethylene glycol, 10-20 parts polyacrylamide, 15-20 parts flame retardant, and 2-8 parts imidazole ethanol. This technical solution solves the problem of poor flame retardancy and protective properties of existing goaf fire prevention and extinguishing materials.

The present invention relates to a fire suppression composition and system designed to extinguish challenging fires, such as Class B fires involving lithium batteries as well as Class A, B, and D fire scenarios. The composition includes a mineral component, a water-based liquid propellant, and a synergistic blend of additives. This innovative combination enables the composition to float on liquid surfaces and adhere to burning materials, effectively suppressing and extinguishing fires. The composition's ability to form a barrier on burning materials prevents fire spread and re-ignition, making it highly effective for both vehicle fires and industrial settings. This advancement offers a versatile and robust solution to modern fire hazards, suitable for use in various delivery systems.

A pack case includes a pack housing, and a lid covering an open top surface of the pack housing, wherein the fastener fixing the lid to the pack housing includes a venting mechanism configured to release pressure within the pack case in excess of a predetermined value to outside of the pack case.

The flame retardant-containing particles are particles (C) obtained by polymerizing two or more monomers (A) in a composition containing two or more monomers (A) having a polymerizable unsaturated double bond and a phosphorus-based flame retardant (B) dissolved in at least a portion of the two or more monomers (A), and the particles (C) include a resin layer (D) formed by polymerizing the two or more monomers (A). The elution rate of the resin layer (D) in the electrolyte solution is 40 mass% or less.

To provide a water-added fire extinguishing agent which exhibits high fire extinguishing performance and allows fire extinguishment to be easily carried out by spraying.SOLUTION: A water-added fire extinguishing agent contains, as a fire extinguishing agent component, a thermally depolymerizable polymer having a structure to which a water-soluble functional group is imparted, an alkali metal salt thereof, or an alkaline earth metal salt thereof, wherein the thermally depolymerizable polymer having a structure to which a water-soluble functional group is imparted preferably has a structure represented by a specific chemical formula, and, in the case of the alkali metal salt, a sodium (Na) salt or a potassium (K) salt can be used, and, in the case of the alkaline earth metal salt, a calcium (Ca) salt or a magnesium (Mg) salt can be used.SELECTED DRAWING: None

To provide a perfluoropolyether compound expressing excellent surface tension reduction performance, and expressing excellent foamability and foam stability not only during diluting fresh water but also during diluting sea water, and a fluorine-based surface active agent including the compound.SOLUTION: A perfluoropolyether dicarboxylic acid compound or a salt thereof is expressed by the following formula (1). In the formula, Rf1 represents a 1-4C perfluoroalkyl group. R1 represents a substituted or unsubstituted 1-10C hydrocarbon group. R2 represents a substituted or unsubstituted 1-6C hydrocarbon group. R3 and R4 are same or different and each represent a substituted or unsubstituted 1-4C hydrocarbon group. n is an integer of 0-5.SELECTED DRAWING: None

The invention discloses an efficient flame-retardant fire extinguishing agent for rapidly extinguishing a lithium battery fire and a preparation formula, and relates to the technical field of fire fighting. The fire extinguishing agent is composed of a liquid-phase component and a solid-phase component, wherein the liquid-phase component comprises ethylene glycol, triethanolamine, fluoroalkyl betaine, sodium dodecyl benzene sulfonate, a phosphate flame retardant, an orange peel extracting solution and purified water; the solid-phase component comprises dodecyl sulfate, ammonium phosphate, potassium perchlorate, sodium carboxymethyl cellulose, polyacrylamide, benzotriazole and the like. The method comprises the following steps: drying and activating solid-phase components after graded crushing, and stirring in a nitrogen atmosphere; carrying out segmented treatment on liquid-phase components, and carrying out ultrasonic emulsification on an orange peel extracting solution; and after solid-liquid mixing, carrying out vacuum defoaming, high-speed shearing dispersion and homogenization treatment. According to the lithium battery fire extinguishing agent, component particle sizes with different dissolution rates are matched through graded crushing, nanoscale dispersion is achieved through ultrasonic emulsification, the bubble residual rate is reduced through vacuum defoaming, and the problems that a traditional lithium battery fire extinguishing agent is low in insulativity, low in cooling efficiency and insufficient in flame retardant efficiency are solved.

Fire suppressing agents and their use in suppressing thermal events in lithium-ion batteries are provided. The fire suppressing agents comprise an aqueous solution of a carboxylate salt, particularly a potassium or sodium salt of lactic acid, acetic acid, citric acid, glycolic acid, butyric acid, or tartaric acid. The fire suppressing agent can be delivered to a battery cell, or battery module comprising a battery cell, which is experiencing a thermal event, such as a thermal runaway, to suppress the thermal event, and inhibit a cascade of the thermal event to adjacent cells.

The present invention relates to a high heat-resistant resin composition for local fire extinguishing and a high heat-resistant binder for local fire extinguishing and, more particularly, to a high heat-resistant resin composition for local fire extinguishing and a high heat-resistant binder for local fire extinguishing, in which, when a fire occurs, not all fire-extinguishing agents in the composition are exhausted, but only fire-extinguishing agents at an area where the fire has occurred perform a fire-extinguishing action, enabling a sustained response to ongoing fires and, at the same time, enabling efficient and excellent fire-extinguishing performance.

The utility model discloses a filtering device for producing an anti-blocking foam extinguishing agent, and relates to the technical field of filtering devices for producing anti-blocking foam extinguishing agents, the filtering device for producing the anti-blocking foam extinguishing agent comprises a tank body and a rotary drum type filtering net structure arranged in the tank body, the fixed partition plate is arranged in the tank body, the interior of the fixed partition plate is fixedly connected with a slag groove assembly, the slag groove assembly comprises a slag groove and a blow-off pipe, and the blow-off pipe is connected into the tank body in a sleeved mode; the input pipe is arranged at the bottom of the tank body, the bottom of the tank body is in through connection with an output pipe, and the bottom of the input pipe is in through connection with a connecting pipe. Through the arrangement of the slag groove assembly and the high-pressure flushing water pipe, the effects of timely cleaning and preventing blockage are achieved, the abrasion or blockage of the equipment caused by impurities, suspended matters and particles, the equipment failure and the maintenance cost are avoided, and finally the purity and the quality of products are improved.

A battery module according to an embodiment of the present disclosure may include: a battery cell including an electrode lead extending a predetermined length; a bus bar frame having a slot into which the electrode lead is inserted and a guide portion configured to guide the electrode lead to the entrance of the slot; and a bus bar coupled to the bus bar frame and connected to an end of the electrode lead inserted into the slot.