201results about How to "Fire suppression" patented technology

A fast response, upright sprinkler head includes a body having a central orifice through which fire extinguishing fluid is expelled through an outlet end. A yoke, attached to the exterior surface of the sprinkler body, extends beyond the outlet end of the sprinkler body and is connected at its apex to a deflector. A fusible trigger assembly is coupled to the yoke and the outlet end of the sprinkler head. The deflector is formed with a planar member having a skirt depending therefrom and an annular ledge extending horizontally from the skirt. The skirt depends from the planar member in an outward direction at a pre-selected angle from the vertical, and is formed with a plurality of through-holes. The fast response upright sprinkler head is configured to have a K value of at least 13.5, while the fusible trigger assembly has a fusing temperature between approximately 155° F. and 175° F. to thereby provide a fast response sprinkler head capable of expelling a sufficient density of water during the early stages of fire development. The angle of the skirt, as well as the through holes formed therein, alter the trajectory of the water to thereby provide a hemispheric pattern of large water droplets capable of penetrating the fire plume and reaching the fire source in order to suppress or extinguish the same. In another aspect of the invention, the fast response upright sprinkler head is used in a fire extinguishing system and method wherein the upright sprinkler head is placed in proximity to a horizontal obstruction depending from, or otherwise supported, a preselected distance from the ceiling of an enclosure. The upright sprinkler system of the present invention develops an effective spray distribution pattern about the obstruction to thereby suppress a fire positioned directly below, or approximately below, the obstruction.

An arrangement for testing a fire suppression sprinkler system includes a supply conduit for supplying a fire suppression fluid to a plurality of sprinklers. A sensor senses a flow of fire suppression fluid through the supply conduit. A drain conduit drains fire suppression fluid when the fire suppression system is tested. A drain valve controls the flow of the fire suppression fluid so that when the fire suppression system is tested the fire suppression fluid is controlled to enter the drain conduit. A fire suppression fluid collection tank collects the fire suppression fluid which has entered the drain conduit for reintroducing the collected fire suppression fluid to the supply conduit. A circulation valve controls the flow of the fire suppression fluid so that when the fire suppression system is tested the fire suppression fluid enters the fire suppression fluid collection tank.

A fire-fighting monitor for directing the flow of fluid from a fluid source includes a base, which is adapted to connect to a fluid source, and a monitor housing. The monitor housing includes an inlet and an outlet, with the inlet releasably mounted on the base and for receiving fluid through the base. The outlet is in fluid communication with the inlet for discharging fluid from the housing. A rotatable connection is provided between the inlet and the base. The inlet is rotatable about the base at the rotatable connection about a first axis. A drive mechanism is associated with the rotatable connection for rotating the inlet about the base at the rotatable connection. The monitor further includes a control system for selectively actuating the drive mechanism and includes a receiver for receiving an input signal from a transmitter remote from the monitor. The control system actuates the drive mechanism in response to the receiver receiving the input signal.

Disclosed is an apparatus for extinguishing a battery-pack fire upon the occurrence of a fire in the battery pack. The apparatus for extinguishing fire on a battery pack according to the present invention comprises: a fire detecting sensor for sensing whether or not a battery-pack fire has occurred; a fire extinguishing agent storage tank which stores a fire extinguishing agent in a space therein; and a control unit which causes the fire extinguishing agent in the fire extinguishing agent storage tank to be injected into the battery pack upon the sensing of the occurrence of a fire by the fire detecting sensor.

Presented is battery packaging material which is made of a laminate including, as the essentials, a base material layer, a metal layer and a sealant layer in this order. When a product obtained by packaging a battery element with the packaging material in a hermetically sealed state through heat sealing is heated, the packaging material delaminates at least at a part of the interface between the metal layer and the outside surface of the sealant layer with the hermetically sealed state being kept, and thereafter works so as to make the product unsealed.

The invention discloses a double-component silicone structural sealant for heat mirror hollow glass and a preparation method of the sealant. The sealant comprises a component A and a component B, wherein the component A comprises hydroxyl-terminated polydimethylsiloxane, alkyl-terminated polydimethylsiloxane, hollow microsphere, ceramic microbead, metal hydroxide, metal oxide, activated calcium carbonate, inorganic pigment and a surfactant; the component B comprises alkyl-terminated polydimethylsiloxane, a coupling agent, a cross-linking agent, a catalyst, an inhibitor, a thickening agent, and silicon dioxide. The preparation method of the sealant comprises the following steps: 1) taking each ingredient in the component A to be mixed uniformly under the vacuum condition; 2) taking each ingredient in the component B to be mixed uniformly under the vacuum condition; 3) mixing the component A and the component B at room temperature according to the weight ratio of (8:1) to (20:1), and at last obtaining the sealant. The double-component silicone structural sealant is good in adhesiveness, high in curing speed, good in sealing performance, high in hardness and modulus, and excellent in thermal barrier effect, and suitable for sealing and bonding of heat mirror film, glass and metal materials etc.

The invention provides a vehicle-mounted lithium ion battery pack grading type fire extinguishing system and a control strategy thereof. The vehicle-mounted lithium ion battery pack grading type fireextinguishing system is composed of a fire parameter monitoring module, a fire extinguishing agent storage module and a fire extinguishing agent spraying module. A detection module monitors various parameters of power batteries during thermal runaway and fire through a plurality of sensors, and analyzes and evaluates the firing degree of the batteries by the BMS. According to a preset extinguishing agent spraying strategy, aiming at the fire characteristics of the batteries, the fire position can be quickly identified, and different extinguishing agent combination modes and spraying modes areselected for the power battery modules with different fire degrees so that the limited vehicle-mounted fire extinguishing agent can play a fire extinguishing role to the largest extent, the fire extinguishing effect is improved, and great guarantee is provided for personal property safety in the use process of an electric automobile.

A fire-fighting monitor for directing the flow of fluid from a fluid source includes a base, which is adapted to connect to a fluid source, and a monitor housing. The monitor housing includes an inlet and an outlet, with the inlet releasably mounted on the base and for receiving fluid through the base. The outlet is in fluid communication with the inlet for discharging fluid from the housing. A rotatable connection is provided between the inlet and the base. The inlet is rotatable about the base at the rotatable connection about a first axis. A drive mechanism is associated with the rotatable connection for rotating the inlet about the base at the rotatable connection. The monitor further includes a control system for selectively actuating the drive mechanism and includes a receiver for receiving an input signal from a transmitter remote from the monitor. The control system actuates the drive mechanism in response to the receiver receiving the input signal.

The invention relates to a program-controlled injection strategy used for fire suppression of an electrochemical energy storage system. A composite sensing fire monitoring module and a fire extinguishing system are mounted in a battery prefabricated cabin, the fire extinguishing system is connected with a fire alarm controller, and a distribution valve is mounted at the top of each battery module; when the composite sensing fire monitoring module sends out an alarm signal, the composite sensing fire monitoring module can rapidly acquire failures and failure positions of batteries; and the fire alarm controller is linked, the corresponding distribution valves are opened, the fire extinguishing system is quickly started, the fire position where the battery thermal runaway occurs is quickly extinguished and continuously cooled, and the batteries are prevented from reburning. According to the program-controlled injection strategy, a grading early warning mechanism is combined with a perfluorohexanone fire extinguishing agent to cooperate with the program-controlled injection strategy to achieve the fire extinguishing system, the lithium battery fire can be effectively suppressed, the characteristics of accurate positioning, efficient fire extinguishing, continuous cooling and environment friendliness are achieved, and electrical equipment is protected and explosion is controlled to the maximum extent through the grading linkage control signal strategy.

A repetitive fuse having an overcurrent preventing function is provided to prevent failure in electronic and electrical products due to overcurrent or overheating by continuously limiting the flow of a current through the increase in electric resistance. A first lead terminal(110) is arranged on one side of a housing(100) having an inner space. A second lead terminal(120) is arranged on the other side of the housing. A spindle(130) is electrically connected or disconnected to the first lead terminal. The spindle is electrically connected to the second lead terminal. A main spring(140) and a bias spring(150) electrically connect or disconnect the first lead terminal and the spindle. A static characteristic thermistor(160) is installed on one side of the housing. The static characteristic thermistor is connected to the first lead terminal and the housing.

The invention provides an efficient fine-water-mist fire extinguishing aviation bomb used for forest surface fire. The efficient fine-water-mist fire extinguishing aviation bomb comprises a bomb body (2) and a bomb tail (6). The bomb body (2) is in threaded connection with the bomb tail (6). The bomb body (2) comprises a gas generator (1) and a water system fire extinguishing containing part (4), and the gas generator (1) and the water system fire extinguishing containing part (4) are both arranged in the bomb body (2). The gas generator (1) is in threaded connection with the head end of the bomb body (2). The bomb tail (6) is provided with a fine-water-mist spray head assembly (5) comprising a liquid guide pipe (3) and a spray head (12) provided with a pressure valve (11). One end of the liquid guide pipe (3) is connected with the spray head. The opening end of the liquid guide pipe (3) is arranged at the head end of the bomb body. According to the efficient fine-water-mist fire extinguishing aviation bomb used for the forest surface fire, a helicopter or aircraft release mode is adopted, so that a large number of the fire extinguishing aviation bombs are carried without the limitation of release altitude and fall in target fire areas accurately.

A device and method of making a full contact floating roof for use in covering fluid bodies, such as storage tanks containing hydrocarbon fluids, allowing ease of construction, high integrity, and low maintenance cost.

A system for suppressing and inhibiting fires in coal pulverizer mills can include a fire suppression solution storage tank, a flow control cabinet, an equipment control / pumping enclosure, an air distribution system, and injection piping and nozzles installed at various positions in one or more pulverizer mills. A first set of nozzle assemblies in communication with the fire suppression solution are positioned in the mill to disperse the suppression solution within the classifier zone of the mill. A second set of nozzle assemblies in communication with the suppression solution are positioned within the mill to disperse the suppression solution within the grinding zone. A third set of nozzle assemblies are positioned within the primary air duct of the mill.

An arrangement for testing a fire suppression sprinkler system includes a conduit for supplying a flow of fire suppression fluid to at least one sprinkler. A sensor is configured to sense the flow of the fire suppression fluid to the at least one sprinkler. The sensor has a first condition indicative of a predetermined volume of flow of the suppression fluid to the at least one sprinkler and a second condition indicative of a volume of flow of the fire suppression fluid to the at least one sprinkler less than the predetermined volume of flow. An actuator causes the sensor to be in the first condition or the second condition. A signaler provides an indication to a user that the sensor is in at least one of the first condition and the second condition.

The present invention is a self-extinguishing sandwich panel to be used as a component of wall and / or roof structures in production halls, warehouses, retail centers, etc. The self-extinguishing sandwich panel is equipped with a core and flow pipes situated under the skin surface, pipes which are distributed on one side of the core or on both sides of the panel core. The panel consists of internal flow pipes (3) that are connected by splines with the sprinkler devices (4), which are situated outside the panel, with the spines passing through holes in the skin (2). The inlet to the system of internal flow pipes (3) has an inlet valve (5), and the outlet has an outlet valve (6). The sprinkler devices (4) may be distributed on one side of the panel. The sprinkler devices (4) may be distributed in a span wise direction and / or over the panel perimeter and / or centrally, with the distribution density of the sprinkler devices depending on the fire load of the facility. The flow pipes (3) may be made of a material that is resistant to high temperature, and may be protected by the panel's skin.

The invention relates to the technical field of power transformers, particularly to a power transformer with a fire extinguishing function and a good heat dissipation effect. The power transformer comprises a heat conduction box, which is rotatably connected with double-thread screw rods, wherein the double-thread screw rods are symmetrically connected with moving blocks in a threaded mode, the moving blocks are fixedly provided with guide seats, a transformer main body is arranged on the inner wall of the heat conduction box, a mounting bottom plate is fixedly arranged at the bottom of the transformer main body, a box cover is fixedly arranged on a connecting seat, a storage box is fixedly arranged on the heat conduction box, a feeding pipe is fixedly arranged on the storage box, a solidpump is fixedly arranged on the feeding pipe, a connecting pipe is fixedly arranged on a discharging telescopic pipe, and is fixedly provided with a material spraying pipe, the material spraying pipeis rotatably connected with a joint, and a material spraying bent pipe is fixedly provided with a spray head. According to the invention, on the basis of a common power transformer, a heat dissipationdevice, a protection device, a buffering device and a fire extinguishing device are arranged, so that the protection performance, the fire extinguishing timeliness and the heat dissipation effect areimproved, and the service life is prolonged.

An automotive vehicle includes a vehicle body and at least one reservoir containing a fire suppressant agent. A distribution system receives the fire suppression agent from the reservoir and conducts the agent to at least one location about the vehicle's body in response to the determination by a sensor system and controller that the vehicle has been subjected to a significant impact. The sensor system and controller determine not only the magnitude of an impact upon the vehicle, but also track subsequent motion of the vehicle, as well as the time which has elapsed since an impact, so as to decide if and when the fire suppressant agent should be dispersed. Alternatively, the fire suppressant agent may be dispersed following activation of a manual switch.

The invention discloses a horizontal explosion-proof piezoresistor which comprises a piezoresistor main body and a shell, wherein, the shell is formed by assembling a cover and a housing, the housing has an opening at one side and an inner cavity for accommodating the piezoresistor main body, the bottom surface of the housing is provided with lead wire bores, the piezoresistor main body is installed into the inner cavity through the opening, the surface of the piezoresistor main body is provided with a first extraction electrode and a second extraction electrode which bend to the lead wire bores, pass through the lead wire bores and extend out from the housing, and a filling cavity is formed between the outer wall of piezoresistor main body and the inner wall of the inner cavity and is filled with an insulation explosion-proof material. When the piezoresistor provided in the invention fails, splitting of fragments in the situation of explosion is avoided, which enables open fire to be effectively inhibited; the shell is of a horizontal structure, which enables the explosion-proof piezoresistor assembled at the back of a circuit board to have a height less than 10mm, thereby meeting current market demands for electric appliances that explosion-proof piezoresistor products should be small, thin and light.

Provided are a polyolefin multilayer microporous membrane and a battery separator having exceptional mechanical strength and heat resistance. This polyolefin multilayer microporous membrane has at least three layers, including a first microporous layer (a surface layer) comprising a polyethylene resin that contains an ultra-high-molecular-weight polyethylene, and a second microporous layer (an intermediate layer) comprising a polyolefin resin that contains a high-density polyethylene and polypropylene, and satisfies the following elements: (I) the piercing strength being 25 g / micrometers or greater, (II) the static coefficient of friction relative to aluminum foil being 0.40 or greater, and (III) the meltdown temperature being 180 DEG C or greater.

The invention discloses a co-mining tunneling method of seam roadway gas. The port of a roadway is sealed to form a sealed space, therefore air outside the roadway can not enter the space, so that the concentration of the gas in the roadway is above 20%, the concentration of the oxygen in the roadway is lower than 12%, and gas loses explosion capability. A drawing pipe is connected to release high-concentration gas released in a working space. In order to prevent high pressure from forming when coal and gas extrude in the roadway, a circular arc-shaped pressure relief roadway is dug on the opening end of the roadway, and high-pressure gas generated by extrusion can be removed. An air conditioning system is arranged in the roadway to guarantee proper environment in the roadway, and workerswork in the sealed space under the condition of prepared safety protection. By utilizing the roadway tunneling method, the problem of gas explosion is fundamentally solved, fire hazard danger is alsoeliminated, and the damage to a human body caused by respirable dust is eliminated; and meanwhile, because the roadway does not have explosion danger, so that the co-mining tunneling method provided by the invention has no anti-explosion requirement on equipment, and has a good popularization value.

The invention discloses an environment-friendly cable insulation material, a preparation method thereof, and a cable sheath. The cable insulation material is prepared from the following raw materials:a PVC resin, a plasticizer, a flame retardant which comprises zinc borate-coated antimony trioxide and / or melamine-coated ammonium polyphosphate, a thermal stabilizer which comprises one or more of an organic calcium zinc complex stabilizer, an organic calcium zinc rare earth complex stabilizer, hydrotalcite, and methyltin dilaurate, an antioxidant, a processing aid, a lubricant, a filler, and acolorant. The environment-friendly cable insulation material provided by the invention is a thermoplastic cable material, which can achieve the functions of preventing burning or retarding combustionin case of fire and extinguishing away from fire, the oxygen index of the cable insulation material is more than or equal to 35, the environmental protection performance of the cable insulation material is better than the RoHS instruction requirement, and the heavy metal content of the cable insulation material provided by the invention is reduced by 10% on the basis of the RoHS instruction requirement. The cable insulation material provided by the invention is suitable for use in workplaces with high fire safety requirements.

A deoxidizer for absorbing and removing oxygen from the surrounding atmosphere, comprising oxygen-deficient cerium oxide having a powder form with a specific surface area of 0.6m <2> / g or less or the form of a formed body with a specific surface area of 3.0m <2> / g or less. The deoxidizer reacts with oxygen even in a moisture-free atmosphere, does not trigger a metal detector nor heat up when microwaved in a microwave oven, and is prevented from abruptly reacting with oxygen and igniting even when brought into direct exposure to the air. The deoxidizer is therefore suited for oxygen removal, for example, inside food packages.

The invention discloses an automatic lithium battery fire extinguishing system which is characterized by comprising a fire pre-warning system, a battery management system connected with the fire pre-warning system, a battery module connected with the battery management system and a fire extinguishing device connected with the fire pre-warning system, wherein the fire extinguishing device comprisesan extinguishing agent bottle group, an electromagnetic valve, an electromagnetic driving device, a distribution valve, a local release pipeline and a local nozzle at the final end, and the electromagnetic valve and the electromagnetic driving device are arranged on a connecting line between the fire pre-warning system and the extinguishing agent bottle group. The automatic lithium battery fire extinguishing system has the advantages that rapid full flood protection for a protection area is added, and the functions of fast fire extinguishing and overall protection are realized; multiple timesof starting to extinguish fire in a small range is achieved, a lithium battery fire is contained, and meanwhile the pollution of other battery modules caused by the traditional large-scale spraying of an extinguishing agent is avoided; mechanical emergency start is added, and the fire extinguishing system can be started through emergency operation when personnel find a fire; and BMS signal collecting and processing is added, so the fire pre-warning ability is improved, and the fire pre-warning response speed is increased.

The present invention relates to a forest fire alarm method based on a transmission network. A remote alarm terminal and a field detection terminal are provided. The field detection terminal is arranged on an electric tower rack and is configured to obtain the forest state information of an area to be detected and upload the obtained forest state information to the remote alarm terminal, and the remote alarm terminal performs data analysis to determine whether the fire is generated or not, generate fire alarm information and issue the fire alarm information to inspection personnel hand-held terminals. The forest fire alarm method based on the transmission network realizes the monitoring of forest fire of remote areas and effectively improve the forest fire hazard prevention and management and control.

An automatic self-contained fire suppression system and method are provided herein. Stovetop fires are a well known residential and commercial hazard. The fire suppression system described mounts on a back wall or back splash above the stove mount. By mounting on the back wall, the system is free from interconnections with apparatus mounted above the stovetop, such as hoods, microwave ovens, lights, fans, and vents. Using a hopper containing fire suppressing matter, a power spring, drive shaft, and a bladed spinner, fires suppressing powder is distributed over the stovetop surface. The fire suppression action is triggered automatically via failure of a heat sensitive frangible link.

A fire access port is mounted on a flammable material compartment juxtaposed with an access hole. A fire extinguisher nozzle is inserted through the fire port to suppress a fire from outside the compartment The fire port comprises a diaphragm of flexible, resilient material having a predetermined thickness extending between opposite primary and secondary surfaces. First and second transverse grooves extend across the diaphragm primary surface. The grooves have a maximum depth less than the diaphragm thickness, and a floor at the maximum depth, forming first and second frangible webs between each groove floor and the secondary surface. The frangible webs will rupture as the fire extinguisher nozzle is inserted through the diaphragm. An annular ring-like base member extends around the diaphragm. The base member extends from a proximal edge with a predetermined thickness for strength, outward to a distal edge having less thickness. A cylindrical wall extends annularly around the diaphragm for reinforcement. The diaphragm, cylindrical wall, and base member are of one-piece construction.

The invention discloses an inflaming retarding and explosion suppressing device for a combustible explosive compressed gas and fluid pipeline. The device comprises a coil pipe, a shell and a fire retardant chemical, wherein the coil pipe is provided with an inlet and an outlet and arranged in the shell, the inlet and the outlet extend out of the shell, and the space between the shell and the coil pipe is filled with the fire retardant chemical. The inflaming retarding and explosion suppressing device is applied to the combustible explosive compressed gas and fluid conveying pipeline, when the pipeline is subjected to a combustion explosion, due to the critical pipe diameter and existence of the corner-turning effect, flames and impact waves entering the coil pipe will decay rapidly and continuously until disappearing, and the inflaming retarding and explosion suppressing effects are achieved; when the device or the coil pipe cracks under influence of the explosion, the fire retardant chemical can put out a fire in time.

The present invention provides a camera module thin film heater and a camera module having the same, the camera module thin film preventing and avoiding glare, condensation and freezing by reaching atarget temperature of a lens within a short period of time, suppressing the generation of fire due to overheating even when operated in a high temperature environment, and not including a temperaturesensor and a temperature control unit, thereby greatly reducing the manufacturing cost. The camera module thin film heater comprises: an electrode; a thin film heating body electrically connected to the electrode and having a variable resistance corresponding to a heating temperature; and an insulating member surrounding the electrode and the thin film heating body.

The invention discloses a building power cable rubber material, and a preparation method thereof. According to the preparation method, silicone rubber and chlorinated polyethylene are subjected to plasticating so as to obtain plasticated rubber; zinc oxide, magnesium oxide, stearic acid, polyisobutylene, zinc methacrylate, and boric acid are added into the plasticated rubber, and an obtained mixture is subjected to first mixing so as to obtain a first mixed rubber compound; white carbon black and calcined clay are added into the first mixed rubber compound for second mixing so as to obtain a second mixed rubber compound; vulcanizing agent DCP, vulcanizing auxiliary agent TMPTMA, anti-aging agent RD, a coupling agent, Sb2O3, chlorinated paraffin, and Mg(OH)2 are added into the second mixed rubber compound for third mixing so as to obtain a third mixed rubber compound; the third mixed rubber compound is cooled so as to obtain the building power cable rubber material which possesses high strength and flame resistance.