1389results about How to "Improve fire extinguishing efficiency" patented technology

The invention provides a fire extinguishing agent. The fire extinguishing agent is prepared by evenly mixing 1-25 parts of hydrophilic solid powder and 100 parts of water or water solution, and then adding 0.001-2 parts of surfactant for evenly mixing; and then adding 2-100 parts of hydrophobic solid particles. The invention provides a preparation method of the fire extinguishing agent. Compared with the existing fire extinguishing agent, the fire extinguishing agent can simultaneously play stifling, cooling and chemical inhibition roles, and the fire extinguishing efficiency is high; according to the fire extinguishing agent, due to addition of the surfactant in the water phase, the dispersion of rotating speed in preparation process can be lowered, the dispersion time can be shortened, and the preparation efficiency can be improved; and with the fire extinguishing agent, the adhesion property of solid gas interface and liquid gas interface can be greatly improved, the usage amount for extinguishing fire can be greatly reduced, and the fire extinguishing property can be obviously improved.

The invention discloses an overhead rail type firefighting inspection robot system. The overhead rail type firefighting inspection robot system comprises an overhead rail part, overhead rail type firefighting inspection robots, fire extinction equipment, a position identification block, a charging position, a remote control center and wireless signal transmission equipment. Each overhead rail type firefighting inspection robot comprises a traveling part, a lifting vision device, a position detection device, a detector, a fire extinction control device and a control and communication device. The robots move on a rail of the overhead rail part. The position detection devices conduct positioning by identifying the position identification block. The robots can be charged at the charging position. The fire extinction control devices operate the fire extinction equipment. The control and communication devices achieve communication of the robots and the remote control center through the wireless signal transmission equipment. The robots of the overhead rail type firefighting inspection robot system can conduct inspection detection along the rail, find out equipment failures and potential safety hazards and can conduct fire extinction operation in time.

The invention relates to a fire-fighting robot facing a complex ground environment. The fire-fighting robot includes a fire-fighting robot device, a controlling table, a fire-fighting water monitor, afire detection assembly, a flame automatic targeting assembly, a water belt automatic shedding assembly, a self-sprinkler assembly and an environmental parameter collection module. The movement performance and safety in a complex ground fire-fighting environment can be ensured or improved; the loading capacity of the fire-fighting robot is improved; when dragging a fire fighting water hose in theback, the resistance capacity to tension, the obstacle climbing capacity, the stair climbing capacity and the capacity of passing an uneven unilateral bridge are improved; the fact that the fire-fighting robot can also move when the flame burns the fire-fighting robot body or a caterpillar band is ensured; the automatic shedding assembly of the fire-fighting water monitor connection mouth is improved so that the success self-preservation rate when the robot retreats is improved; the device of the fire-fighting robot of automatic searching for the flame and automatic controlling of collimationof the fire-fighting water monitor is added; so that fire-fighting efficiency and the degree of automation of the fire-fighting robot are improved.

The invention discloses a pyrotechnical hot-gas sol fire extinguishing agent and a preparation method thereof, and relates to the field of fire extinguishers. The pyrotechnical hot-gas sol fire extinguishing agent is prepared from 41 to 56 weight percent of first oxidant, 8 to 15 weight percent of second oxidant, 15 to 26 weight percent of burnable agent, 4 to 17 weight percent of adhesive and 2 to 22 weight percent of functional additive. The preparation method comprises the following steps of: mixing the oxidants, the burnable agent and the functional additive, then screening the mixture, stirring the mixture and the adhesive, mixing and stirring the mixture and organic solution, pressing the mixture and drying the mixture. The pyrotechnical hot-gas sol fire extinguishing agent has the characteristics of high fire extinguishing efficiency, simplified fire extinguishing composition, no influence of combustion reaction on external oxygen concentration change, no harm substance production to human bodies, animals and natural environments, safer operating mode, simpler and more convenient preparation method and the like, and is suitable for extinguishing fire of fuel and electrical equipment of automobile engine cabins, airplane fuel cabins, power distribution cabinets and the like.

The invention discloses a pipe network type dry powder fire extinguishing system which comprises fire source detectors arranged in all subareas of a protected area, a temperature detector arranged in the protected area, a controller, a gas supply device, a mist mixing tank, subarea electric valves and spray nozzles, wherein the controller is used for receiving electrical signals from the fire source detectors and the temperature detector, or the electrical signals from the more than two fire source detectors and then sending a fire extinguishing control command; the gas supply device is electrically connected with the controller; the number of the subarea electric valves is equal to the number of the subareas; and the spray nozzles are connected with the output ends of all the subarea electric valves through pipelines. The pipe network type dry powder fire extinguishing system can perform fire extinguishment once or many times, and can perform fire extinguishment on each divided area separately.

The invention discloses a ground direct injection type liquid nitrogen fire preventing and extinguishing system. An outlet of a liquid nitrogen tank truck of the system is connected with an inlet of a reciprocating type low-temperature liquid pump, an outlet of the reciprocating type low-temperature liquid pump is connected with a liquid inlet of the upper portion of a buffering tank, a liquid outlet of the lower portion of the buffering tank is connected with a vacuum low-temperature heat insulation tube, the vacuum low-temperature heat insulation tube is connected with a nitrogen injection tube and a nitrogen gas delivery tube, a gas exhaust opening at the upper end of the buffering tank is connected with the nitrogen gas delivery tube, the upper portion of the buffering tank is a single-layered shell, and the upper end of the buffering tank is connected with a decompression valve. Key technical problems that gas phase and liquid phase are separated after liquid nitrogen is vaporized and the nitrogen injection tube is blocked are avoided. The ground direct injection type liquid nitrogen fire preventing and extinguishing system is simple in structure and convenient in installation, is safe and reliable, and effectively avoids problems of gas blockage, intermittent spring and the like in a liquid nitrogen injection process, and liquid nitrogen filling efficiency is improved by 20% at least as compared with traditional direct liquid nitrogen filling process. The ground direct injection type liquid nitrogen fire preventing and extinguishing system is particularly applicable to preventing and extinguishing fire of hidden fire sources of shallow-buried deep coal mine underground worked out sections.

The present invention discloses a vehicle-bone superfine water fog fire extinguishing device which is characterized by using a fire engine as a carrier and being provided with a water-air double-pipeline transmission system; the air pipeline comprises an air compressor and a pressure air pipeline which transmits high pressure air; the water pipeline comprises a pump and a pressure water pipeline which is communicated with a pump outlet and transmits high pressure water; the pressure air pipeline is joined up with the pressure water pipeline in a spray device; the high pressure water is cut by the high pressure air in the spray device and then is sprayed out as superfine water fog by a spray cylinder; and the fire extinguishing effect is far higher than fog water or water mist. The internal shape of the spray cylinder from an inlet to an outlet is the shape from convergent to spread and is accorded with the aeronautical dynamics and the fluid mechanics theory better, and the spray cylinder can maximize the ray range of the sprayed superfine water fog, so as to meet the requirement of remote fire extinguishing.

The invention discloses a high-efficiency environment-friendly foam extinguishing agent and a preparation method thereof. The high-efficiency environment-friendly foam extinguishing agent is composed of, by weight percentage, 10%-50% of a composite surface active agent, 10%-30% of an organic solvent, 1%-5% of a stabilizer, 0.2%-4% of a burning resisting agent, 0.5%-3% of a chelating agent, 0.1%-1% of a corrosion remover and the balance water. The preparation method includes the steps that surface active agents are sequentially added to water to form the composite surface active agent A while being stirred, the organic solvent and the stabilizer are mixed evenly to form a component B, then the A is added to the continuously-stirred B, stirring is continued, then the burning resisting agent, the chelating agent and the corrosion remover are sequentially added to the A and B mixed system, and finally the water is added as the balance, so that the high-efficiency environment-friendly foam extinguishing agent is obtained. The high-efficiency environment-friendly foam extinguishing agent is free of a fluorine surface active agent, thereby being high in bioremediation performance. Foam prepared through the method is good in stability and high in fire extinguishing efficiency, and is a high-efficiency environment-friendly product. According to the preparation method, heating and filtering are not needed, the three wastes are avoided, environment protection and energy conservation are achieved, and the production efficiency is high.

The invention relates to an automobile motive power battery compartment fire extinguishing system, which comprises a fire extinguishing device, a fire extinguishing agent conveying pipe, a signal converter and a thermosensitive element, wherein the fire extinguishing device is arranged in an automobile motive power battery compartment, the fire extinguishing agent conveying pipe is communicated with a spraying opening of the fire extinguishing device, the signal converter is electrically connected with the fire extinguishing device, and the thermosensitive element is used for detecting the temperature in the automobile motive power battery compartment and transmits the temperature value to the signal converter. When the temperature value is higher than a set threshold value, the signal converter converts the temperature value into fire extinguishing device starting signals and sends the fire extinguishing device starting signals to the fire extinguishing device, and a fire extinguishing agent is sprayed into the automobile motive power battery compartment through the fire extinguishing agent conveying pipe after the fire extinguishing device receives the fire extinguishing device starting signals. Through the temperature detection by the thermosensitive element and the signal conversion and the signal sending by the signal converter, the fire extinguishing device can be automatically started in time, the fire extinguishing agent is conveyed to the fire extinguishing agent conveying pipe and is sprayed out to the automobile motive power battery compartment, the local or full submerging state is formed in the automobile motive power battery compartment, fire can be automatically extinguished in time, the fire extinguishing efficiency is high, and the safety is good.

The invention relates to an involute arc spout fire extinguishing sprinkler head of a fire extinguishing device with a mechanical liquid sprinkling fire extinguishing agent, which solves the problem that the existing circular spout groove sprinkler head costs fire extinguishing agent and delays fire extinguishing time. The sprinkler head comprises a sprinkler head body, a bearing and a connecting pipe; the spout groove is involute arc along the radial direction; the spraying angle of B end which is the starting end of the involute arc spout groove 4 is 70-85 degrees, the spraying angle of C end which is the ending end of the involute arc spout groove 4 is 40-45 degrees, and the base radius r of the involute is 10-15mm. The spout groove is in the involute shape, thus the sprayed fire extinguishing agent forms a round cake shape while being sprayed, which is good for fire extinguishing. The sprinkler head is applied to liquid extinguishing agents comprising water, aqueous film forming foam concentrate, and the like. The sprinkler head has the advantages of extinguishing fire in a short time with a few fire extinguishing agents, low fire extinguishing cost, high fire extinguishing efficiency, convenient use, flexible action, saving time and high efficiency, and is applied to oil fire of aerosheds, etc.

The invention discloses an automatic tracking and positioning jet flow extinguishing method. A camera is used for collecting on-site video images, the water falling point position is corrected through human assistance, and remote quick positioning of a fire point is achieved on a monitoring platform of an upper computer. The method comprises the steps that a fire source signal is detected through a jet flow extinguishing device, and the center position of a fire source region is determined preliminarily and sent to the upper computer so as to control the extinguishing device to spray water for extinguishing; according to on-site real-time monitoring videos collected by the monitoring camera, whether outflow water falls in an effective range of the center position of the fire source is judged, and if yes, adjustment is not needed; if the outflow water is out of range, human-assisted positioning adjustment is conducted on the water falling point position, and the water falling point is made to be in the effective range of the center position of the fire source. By the adoption of the extinguishing method, the positioning precision of an extinguishing system is improved to a great extent, the possibility of software misjudgment is reduced, and a guarantee is provided for quick, efficient and reliable operation of the fire-fighting extinguishing system.

The invention discloses an annular fine water mist fire extinguishing cover system. The annular fine water mist fire extinguishing cover system comprises a fine water mist spraying mechanism; the fine water mist spraying mechanism includes a high-pressure water distributor and more than two annular water pipes; each annular water pipe is communicated with the high-pressure water distributor through more than high-pressure water distribution pipes; and each annular water pipe is respectively provided with more than two fine water mist nozzles. The annular fine water mist fire extinguishing cover system is fast in fire extinguishing speed and high in fire extinguishing efficiency, and cannot generate secondary pollution to surrounding environments. The annular fine water mist fire extinguishing cover system can be used for cooling exposed combustible gas or liquid pipes after fire extinguishing, overcomes the defects of low fire extinguishing efficiency and bad fire extinguishing agent waste in a traditional spraying dry powder fire extinguishing agent, and satisfies the purposes and the technical requirements of effectively extinguishing the oil tank fire.

A cooling and flame-isolating appts. for extinguishing fire by aerosol features that the chemicals are used for cooling because the chemicals are decomposed at different temps to absorb heat. It is a 4-layer structure in which the first and the fourth layers are used for isolating flame, and the second and the third layers for cooling purpose.

Relating to the field of fire-fighting equipment, the invention provides a median-multiple fire-fighting foam monitor, which mainly solves the defects existing in single-multiple and median-multiple fire-fighting foam monitors. The median-multiple fire-fighting foam monitor includes a connecting pedestal, launch foam barrels and a pipeline barrel frame connecting the connecting pedestal and the launch foam barrels. The connecting pedestal, the pipeline barrel frame and the launch foam barrels are equipped with a mixed solution channel communicated with a mixed foam solution. The launch foam barrels include barrel bodies and nozzles disposed at front ports of the barrel bodies. The foam monitor is characterized in that there exist multiple launch foam barrels, which are fixed on the pipeline barrel frame in a vertical direction and have the same launch direction. Specifically, a low multiple launch foam barrel is positioned below, and launch foam barrels higher than the low multiple launch foam barrel are positioned above. The mixed solution pipeline in the pipeline barrel frame is communicated with the nozzles of all launch foam barrels, and each nozzle is respectively located in the front port of a corresponding barrel body. Compared with traditional low multiple foam extinguishing systems, the fire extinguishing efficiency is improved; compared with traditional high multiple foam extinguishing systems, the launch range is increased.

The invention discloses an electrical cabinet with an automatic fire extinguishing function and a using method. The invention belongs to the technical field of electrical cabinets, the invention discloses an electrical cabinet with an automatic fire extinguishing function. The cabinet comprises a cabinet body, a cabinet door is arranged on the outer wall of one side of the front of the cabinet body; a device box is fixedly mounted at the top of the cabinet body; the outer walls of the two sides of the cabinet body are respectively provided with two heat dissipation holes. A heat sensing bottleis fixedly installed on the outer wall of the top of the cabinet body; a sealing plate is fixedly installed on the inner wall of the heat sensing bottle; a connecting air pipe is fixedly installed inthe middle of the sealing plate; an adjusting box is fixedly installed in the device box; an air bag is fixedly installed in the adjusting box; one end of the connecting air pipe communicates with the heat sensing bottle, and the other end communicates with the air bag. The fire extinguishing function can be automatically triggered and a dry powder extinguishing agent can be sprayed when the electrical cabinet is on fire without supporting of external energy sources such as electric power, meanwhile, external air entering is reduced, fire is quickly extinguished, and the fire extinguishing device is safe, stable, high in reliability and high in fire extinguishing efficiency.

The invention relates to the technical field of fire-fighting equipment, in particular to a power transformer fire extinguishing system and a control method. The power transformer fire extinguishing system comprises an equipment protecting room, a fire extinguishing pipe network, multiple fire detectors, point spraying branch control pipe valves and weatherproof porous bundling nozzles; a gas cartridge set, a starting bottle set, a 3D boiling powder storage tank and a fire extinguishing controller are arranged in the equipment protecting room, and the fire extinguishing controller is provided with a multi-feature signal detector, an air speed detector and a reburning detection and alarm controller. The control method comprises the following steps of initialization, fire detection, alarm and fire extinguishment; the fire extinguishment comprises the steps of point fire extinguishing scheme generating, multi-point fire extinguishing scheme generating and full fire extinguishing scheme generating. According to the power transformer fire extinguishing system and the control method, the main pipe network is buried under a terrace, the safety is high, and the stable reliability of the fire extinguishing system is guaranteed; a point fire extinguishing scheme, a multi-point fire extinguishing scheme and a full fire extinguishing scheme are designed according to different fire types, and the fire extinguishing efficiency and the fire extinguishing effect are greatly improved.