83results about How to "Guaranteed fire extinguishing performance" patented technology

The invention discloses a superfine dry powder cold aerosol automatic fire-extinguishing system which comprises a fire extinguisher, a driving gas delivery conduit, spraying devices and a control device, wherein the fire extinguisher comprises a gas storage device, a control valve assembly and a connecting pipeline, and the gas storage device is connected to the input end of the driving gas delivery conduit through the control valve and the connecting pipeline; a control valve assembly is controlled to open and close by the control device; the spraying devices are distributed in the protected area according to the engineering requirements; each spraying device is provided with a powder storage tank; the powder storage tank is connected to the output end of the driving gas delivery conduit through a first control valve; the powder storage tank is provided with a spraying outlet which is provided with a second control valve; and the first and second control valves are controlled to open or close in a pneumatic or electric mode. Compared with the prior art, the fire-extinguishing system of the invention has the advantages of simple structure, favorable fire extinguishing effect, low engineering investment and low maintenance expense.

The invention discloses a method for controlling the particle size distribution and content of an ABC powder extinguishing agent, which comprises the following steps of: (1) firstly, crushing diammonium phosphate with an LF concealed and stepped super micro mill and controlling the 'particle size distribution' of the diammonium phosphate; secondly, controlling the 'particle size distribution' of other materials in 0.125 millimeter, 0.063 millimeter and 0.040 millimeter sieves and an underpan; and finally, controlling the 'particle size distribution' and 'content' of the product. The ABC powder extinguishing agent prepared by the method can effectively extinguish class A, B and C fires and electric equipment fires, has a class A, B, C fire extinguishing efficiency which is 1 to 3 times of that of the prior ABC powder extinguishing agent, saves raw material cost, improves extinguishing efficiency and can match products made in advanced countries across the world in performance.

The invention discloses a fire-extinguishing system special for a wind driven generator cabin. The system comprises a gas fire-extinguishing system, a wind driven generator cabin tuyere emergency closing system and an information and control system; the gas fire-extinguishing system comprises a fire-fighting nozzle and a temperature controlled fire-extinguishing agent heat preservation storage device; the wind driven generator cabin tuyere emergency closing system comprises a filling device, a soft capsule communicated with the filling device through a filling pipeline and a control device for controlling opening and closing of the filling device; and the information and control system comprises a wind driven generator cabin field controller and a remote after-sale service system. The system integrates fire detection, automatic start, automatic release, information acquisition and feedback, has an automatic constant temperature function, is accurate and quick in response, low in false alarm rate, convenient to arrange and reliable in structure, completely does not depend on power for starting, can effectively adapt to the severe working environment of a wind driven generator unit, and can quickly realize automatic fire extinguishment and reduce the loss to minimum once a fire happens in the generator cabin.

The invention discloses a safety fireproof cooling wiring conduit. The safety fireproof cooling wiring conduit is characterized by comprising conduits a, a conduit b and a connecting plug, wherein the connecting plug is connected with the conduits a and the conduit b; each of the conduits a and the conduit b comprises a conduit body and a protective cooling layer; each protective cooling layer is arranged on an outer ring of each conduit body; a plurality of wiring fireproof boxes are also connected between the conduits a when the conduits a are connected in parallel; each wiring fireproof box comprises a nitrogen tank and an air faucet; each air faucet is connected with the corresponding nitrogen tank; and an electromagnetic valve for controlling each air faucet to be closed is also arranged on each nitrogen tank. The safety fireproof cooling wiring conduit is simple in structure; and heat generated in the electrifying process of an electric wire in the wiring conduit can be emitted, so that the damage to the electric wire caused by heat accumulation and a fire caused by the heat accumulation are avoided. A blackdamp is generated in the overall conduit in the fire, so that the fire is prevented from spreading to the outside of the conduit; and a relatively big fire is further prevented.

The invention belongs to the field of fire-fighting fire extinguishing apparatus and especially relates to a parallel composite tank for fire extinguishing of large-scale equipment. The parallel composite tank comprises at least two powder storage tanks, which are for storing, atomizing and mixing dry powder and are in a same horizontal line; an upper air inlet and a lower air inlet are arranged on the top and the bottom of each powder storage tank; a pressure sensor for detecting pressure in each tank is arranged on the top of each powder storage tank; an atomizing device for loosening and atomizing the dry powder is arranged in each powder storage tank; the lower air inlet is connected with the atomizing device; a powder outlet is arranged on a side wall of each powder storage tank; and powder outlets of the at least two powder storage tanks are connected with a dry powder pipeline centralized controller through a connecting pipe. According to the invention, a plurality of powder storage tanks are connected through the dry powder pipeline controller, so as to start different numbers of powder storage tanks, according to fire behavior, to guarantee the amount of dry powder needed by fire extinguishing.

The invention discloses a fire source positioning and fire extinguishing control method for a fire-fighting robot. Two thermal imaging module cameras are mounted at the top of the fire-fighting robot at equal height, a water gun is mounted on one side of the fire-fighting robot, and one thermal imaging module camera is mounted on the water gun. According to the method, fire source identification is carried out based on the pixel points, and compared with image identification or target detection, a fire source identification speed is higher; after a fire source is identified, fire source coarse positioning is performed according to the thermal imaging module cameras on the top of the fire-fighting robot, and then fire source accurate positioning is performed according to the thermal imaging module camera on the water gun, so that the accuracy of fire source positioning is ensured; and finally, after the fire source is accurately positioned, the fire source is adjusted to be in the middle lower position in a corresponding thermal imaging image of the water gun by considering an actual water spraying path of the water gun, so that the actual fire extinguishing effect is guaranteed.

A composite fire extinguishing bomb and a method of using the same are disclosed. The composite fire extinguishing bomb includes: a first accommodating cavity used for accommodating a dry powder extinguishing agent; a second accommodating cavity used for accommodating a water-based extinguishing agent and isolated from the first accommodating cavity; and a control mechanism connected with first accommodating cavity and the second accommodating cavity, and configured to open the first and second accommodating cavities one after another to spray the extinguishing agent towards the fire. By beinginstructed to spray the dry powder extinguishing agent and the water-based extinguishing agent to the fire in sequence, the composite fire extinguishing bomb solves the problems that an existing extinguishing bomb has a poor extinguishing capability and cannot meet a high extinguishing requirement.

The invention relates to the field of fire extinguishing materials, in particular to a gel fire extinguishing material, a fire extinguishing material and a blocking agent. The gel fire extinguishing material is prepared from a water glass compound which accounts for 13-20% of the mass of the gel fire extinguishing material, a coagulant which accounts for 3-15% of the mass of the gel fire extinguishing material, a flocculant which accounts for 2-3% of the mass of the gel fire extinguishing material, and the balance of a blending agent. The fire extinguishing material can be stably spliced on basal bodies such as a coal mine, is difficult to fall off and fracture, and generates no harmful gas in the process of fire extinguishing.

The invention discloses a louver control system of a wind power generation unit. The system is characterized by comprising a louver controller, a louver driving device and a louver, wherein the louver driving device is connected with the louver which is arranged at a ventilation opening of a cabin, the louver controller is connected with the louver driving device, and the louver controller is connected with an alarming signal of an automatic fire extinguishing system of a fan, and is also connected with a signal of a temperature sensor in the cabin. The system has the advantages that after a fire is determined by the automatic fire extinguishing system, the louver control system can timely control the closing of the louver at the ventilation opening of the cabin, and a sealed environment is formed in the cabin, so the fire is favorably extinguished; on the premise of no fire and normal running of the power generation unit, the louver control system can control the opening or closing of the louver at the ventilation opening of the cabin at certain temperature value according to the temperature which is obtained by the temperature sensor in the cabin, so the temperature is automatically adjusted.

The invention provides a power cable trench fire prevention device. The power cable trench fire prevention device is arranged in a cable trench. The power cable trench fire prevention device comprisesa plurality of brackets arranged at the bottom of the cable trench and used for accommodating cable joints. Each bracket is of a U-shaped structure with an upward opening. A sand storage box is arranged in the position, over each bracket, of the top of the cable trench. The sand storage boxes store fine dry sand. A sand outlet pipe extends vertically downwards from the bottom of each sand storagebox. The bottom of each sand outlet pipe is provided with a sand outlet located above the top opening of the corresponding bracket. A sealing cap is arranged at each sand outlet. One end of each sealing cap is hinged to the corresponding sand outlet pipe. The other end of each sealing cap and the corresponding sand outlet pipe are provided with a matched lock ring. A temperature sensing cable memory alloy wire used for tightening the lock rings and being capable of being fused at high temperature are wound around the lock rings. The power cable trench fire prevention device has the beneficialeffects of being simple in structure, good in fire extinguishing effect, low in cost, capable of maintaining the fire extinguishing effect for a long time and free of limitation of the effective time, saving the cost and facilitating management.

The invention discloses a green biological inhibition fire preventing and extinguishing material which comprises, by weight, 60-100 parts of water, 8-20 parts of aloe extracts, 10-20 parts of basic reagents and 10-20 parts of prepared reagents. The basic reagents include acetone, potassium iodide, potassium bromide, potassium peroxodisulfate and N-isopropylacrylamide, and the prepared reagents include sodium bicarbonate, polydimethylsiloxane, anhydrous sodium sulfite and acrylic acid. A pH (potential of hydrogen) of the biological inhibition fire preventing and extinguishing material is 7-7.3.The invention further discloses a preparation method of the biological inhibition fire preventing and extinguishing material. The method includes the steps: uniformly mixing the aloe extracts and water; sequentially adding the basic reagents and the prepared reagents; adjusting pH and standing. Penetrability and diffusivity of the biological inhibition fire preventing and extinguishing material are improved, fire extinguishing performance is enhanced, and the material is green and environmentally friendly. According to the method, raw materials are uniformly mixed step by step to prepare thebiological inhibition fire preventing and extinguishing material, and the fire extinguishing performance of the material is further enhanced.

A powder drive type fire extinguishing cannon comprises a powder containing box, a cannon pipe and a main pressure source; the main pressure source pressurizes a cannon pipe from the cannon tail of the cannon pipe, the powder containing box is fixed to the peripheral face of the cannon pipe, the powder containing box comprises an auxiliary pressurizing pipe, a box body, a flow control plate and a steering engine, the auxiliary pressurizing pipe is communicated with the top of the box body, the box body is communicated with the cannon pipe, the connecting position of the box body and the cannon pipe is a flow combining fork, the flow control plate partitions a channel for communicating the box body with the cannon pipe, and the steering engine controls the flow control plate. Powder fire extinguishing agents can be continuously sprayed out, and the beneficial effects of being small in recoil and small in weight are achieved.

The invention discloses an automatic fire extinguishing system for a server. A PCB is provided with a smoke sensor, a fan module comprises a plurality of groups of fans, a plurality of storage tanks are formed in a closed space defined by a shell, an enclosure and an inner ring, and a fire extinguishing material is arranged in the storage tanks; a blowing opening is formed in one side of a rotating disc, a blowing pipe is arranged outside the rotating shaft in a sleeving mode, a plurality of communicating pipes are connected to the blowing pipe in a penetrating mode, and the other ends of thecommunicating pipes are communicated with the storage tanks. According to the automatic fire extinguishing system, the smoke sensor is arranged at an air outlet of the case, the fire extinguishing material is in the storage tanks, when the smoke sensor detects that smoke in the system is generated, the signal is transmitted to the BMC, the BMC controls the electromagnetic valve on the communicating pipe to be opened after receiving the smoke sensor signal, the fire extinguishing material is dispersed inside the system under the action of the air flow through the blowing opening, the fire extinguishing requirement is met, further spreading of fire is avoided, and further loss of personnel and property is avoided.

The invention discloses a perfluorohexanone fire extinguishing device. The perfluorohexanone fire extinguishing device comprises a base and supporting legs arranged on the two sides of the lower end of the base, rolling wheels are arranged at the lower ends of the supporting legs, a storage tank used for storing perfluorohexanone is arranged above the base, a supporting assembly used for supporting the storage tank is arranged at the upper end of the base, a pressure adjusting assembly used for adjusting the internal pressure of the storage tank is arranged on the storage tank, the pressure adjusting assembly adjusts the internal pressure of the storage tank so as to ensure that perfluorohexone has enough injection power, meanwhile, the problem that the pressure of perfluorohexone is large due to the external temperature is solved, and a discharging port is formed in the lower right side of the storage tank. The perfluorohexanone fire extinguishing device is designed for the defects of an existing device, and the perfluorohexanone is adopted for extinguishing a fire, so that damage to electronic equipment is reduced while the fire extinguishing effect is improved; and the position can be adjusted according to needs, fire extinguishing can be conducted on different positions conveniently, position adjusting pieces are arranged, the spraying position and angle can be adjusted, and fire extinguishing is more accurate.

The invention discloses a fire extinguishing robot for a valve hall and a valve hall fire extinguishing system. The fire extinguishing robot for the valve hall comprises a fire extinguishing robot body and a cable storage mechanism, wherein the fire extinguishing robot body is preset in the valve hall and comprises a walking mechanism, a fire extinguishing gun, a communication mechanism and a control mechanism; the cable storage mechanism comprises a base, a rotating table which is driven and rotationally arranged on the base in the horizontal direction, and a cable automatic reel and/or a fire extinguishing agent pipe automatic reel arranged on the rotating table; the cable automatic reel and/or the fire extinguishing agent pipe automatic reel are/is connected with the fire extinguishingrobot body; and the fire extinguishing agent pipe automatic reel is driven to automatically store a water pipe, and/or the cable automatic reel is driven to automatically store a cable. By the cable storage mechanism matched with the fire extinguishing robot body, the problems can be effectively solved that in the prior art, a fire extinguishing agent of a fire extinguishing robot is insufficientin supply, the fire extinguishing capacity of the fire extinguishing robot is insufficient, and the valve hall fire extinguishing requirement cannot be met.

The invention provides a connection type temperature control cell coating inhibition ball for forest and grassland fire prevention and a use method, and is suitable for forest or grassland fire prevention and extinguishment. The connection type temperature control cell coating inhibition ball comprises flame-retardant pellets and aramid fibers, each flame-retardant pellet is composed of a coating shell and an internal inhibition liquid, the coating shell comprises a phase-change material and a reinforcement material, the phase-change material and the reinforcement material can be converted into a liquid state from a solid state within a certain temperature range after being melted, mixed and formed, the inhibition liquid sealed in the interior is released, and the inhibition liquid is generally a 20% calcium chloride solution. The aramid fibers are high-temperature-resistant, high-strength, superfine and flexible special fibers. According to a device, the flame-retardant pellets and the aramid fibers are combined, the rolling area of the flame-retardant pellets is purposefully limited through the traction effect of the aramid fibers, the inhibition balls are more concentrated in the throwing process, the influence of the throwing terrain on the effect of the flame-retardant pellets is reduced, and therefore the utilization rate of the inhibition balls is increased, and the flame-retardant effect is more efficiently achieved.