254results about How to "Effective fire extinguishing" patented technology

The invention discloses an intelligent fire-fighting robot and a control method thereof. The intelligent fire-fighting robot comprises a vehicle body and is characterized in that a power supply is arranged on the vehicle body and electrically connected with a control device, the control device is connected with a walking device, a spray device and an auxiliary device and wirelessly connected witha central control terminal, and the spray device is connected with fire extinguishing boxes containing different fire extinguishing agents; the control device communicates with the central control terminal and the auxiliary device to obtain the fire outbreak position and fire outbreak type and controls the walking device, so that the vehicle body can reach the fire outbreak position, and the control device controls the spray device to select the fire extinguishing agent matched with the fire outbreak type from the corresponding fire extinguishing box and to perform spray for fire extinguishing. The device is small in size, flexible to move, can operate with human or other devices to improve the fire extinguishing efficiency, can avoid barriers to position the fire outbreak location, realizes accurate fixed-point fire extinguishing, can automatically switch the types of fire extinguishing agents according to the fire outbreak type and can enter the dangerous area for rescue.

The invention discloses a special automatic fire extinguishing device for a battery box. The special automatic fire extinguishing device comprises a plurality of air suction type fire disaster detectors, at least two fire extinguishing agent containers, and a controller, wherein the air suction type fire disaster detectors are used for detecting whether the interior of each battery box catches a fire or not; the fire extinguishing agent output opening of each fire extinguishing agent container is connected with a fire extinguishing agent conveying pipe network; each fire extinguishing agent conveying pipe network comprises a main pipeline and a plurality of branch pipelines which are connected with the main pipeline; each battery box of a coach is connected with at least one branch pipeline; a first valve is mounted at the fire extinguishing agent output opening of each main pipeline or each fire extinguishing agent container; a second valve is mounted on each branch pipeline; the controller is connected with the air suction type fire disaster detectors, the first valves and the second valves, and controls whether each of the first valves and the second valves is opened or closed according to detecting results of the air suction type fire disaster detectors. According to the special automatic fire extinguishing device for the battery box, each battery box of the coach can be effectively protected one by one; the personal and property safety of passengers on the coach caused by fire spreading because a new energy coach catches a fire can be prevented.

This invention relates to the field of fire-fighting equipment, specifically to means of fire fighting by a fire-extinguishing aerosol that is formed during burning of pyrotechnical composite and a method of its production. The invention allows to prepare pyrotechnical, aerosol-forming fire-extinguishing composite with good deformation strength characteristics, low fire-extinguishing concentration and regulate burning velocity. The pyrotechnical aerosol-forming fire-extinguishing composite contains an oxidizer, a production process additive and burning binder formed by thermoplastic formaldehyde and phenol polycondensate, plasticized by dicarboxylic acid ester and reinforced by polytetrafluoroethylene. The method of producing the composite consists of mixing of formaldehyde and phenol polycondensate suspension in an organic solvent and polytetrafluoroethylene dispersion in dicarboxylic acid ester, mixing the resulting composition with an oxidizer and a production process additive with subsequent thermomechincal effect. The invention can be used for fire-extinguishing in different structures and devices without harmful effect on human body and living organisms, nature.

The invention discloses a flame detection and positioning method based on multi-feature fusion and stereoscopic vision and relates to the field of computer vision. According to the method, an improvedVibe algorithm and an OHTA color splitting method are utilized to extract a suspected flame region; shape features, morphological overlapping degree features and area change rate features of a targetin the suspected flame region are extracted, so that a multi-feature fusion model is established to obtain the probability of flame existence, and whether a flame exists is detected according to theprobability; and finally flame positioning is performed according to the flame detection result, an SSDA stereoscopic matching algorithm and the principle of a parallel binocular stereoscopic vision system. The method has high anti-interference, robustness and instantaneity, the flame detection and positioning result is beneficial for positioning and extinguishment, and fire loss is lowered to themaximum extent.

The invention relates to a fine water mist fire-fighting helicopter of a helicopter-lifted fine water mist fire-fighting device. The problems that the water consumption is large, the subsequent water supply is difficult, and the fire extinguishment effect is influenced can be effectively solved. According to the technical scheme for solving the problems, the fine water mist fire-fighting helicopter comprises a helicopter and a fire extinguishing device; the fire extinguishing device is lifted below the abdomen of the helicopter by a steel rope; the upper end of a water absorption tube at the lower part of the fire extinguishing device is connected with a water tank of the fire extinguishing device; the lower end of the water absorption tube is connected with a submersible pump; the water absorption tube is provided with an electronic valve below the fire extinguishing device; and the fire extinguishing device is provided with a controller. The fine water mist fire-fighting helicopter has a simple structure, utilizes the air advantages of the helicopter, can be effectively used for the fire extinguishment and the fire prevention of forests, is flexible and mobile, and has less water consumption and a good fire extinguishment effect.

The invention relates to an unmanned aerial vehicle used for fighting a forest fire and based on the internet of things. The unmanned aerial vehicle comprises a vehicle body, a flying mechanism, a fire extinguishing mechanism and a flying control module arranged in the vehicle body; the flying mechanism comprises a plurality of flying assemblies evenly distributed in the circumferential direction of the vehicle body, and each flying assembly comprise a rotary wing, a rotary wing motor and a cantilever; the fire extinguishing mechanism comprises a shell body, a rotary assembly and a separation assembly, and the rotary assembly and the separation assembly are arranged in the shell body; the rotary assembly comprises a first rotary shaft, a rotary disc, a first gear, a second gear, a rotary motor, a clamping unit and a fire extinguishing bullet; the clamping unit comprises a plurality of supporting modules; and each supporting module comprises a supporting plate, a first spring and a hinge shaft. The unmanned aerial vehicle used for fighting the forest fire and based on the internet of things is exquisite in structure, the specially-provided fire extinguishing mechanism is used for discovering fire places timely, and throwing the fire extinguishing bullet overhead the fire places, and the fire is handled in the shortest time. A specially-provided spraying mechanism can also be used for fire extinguishing, and can extinguish the fire more effectively in cooperating with the fire extinguishing mechanism to work.

The invention discloses a mining fire extinguishment liquid carbon dioxide long-distance pipeline conveying device. The device comprises a gas-state carbon dioxide storage tank , a liquid-state carbon dioxide storage tank and a conveying pipeline; a pressure stabilizing valve and a pressure meter are arranged at the end, located outside a mine body, of the conveying pipeline, the end, outside the mine body, of the conveying pipeline is communicated with the gas-state carbon dioxide storage tank, the upper end of the conveying pipeline is communicated with the liquid-state carbon dioxide storage tank, the end, located in the mine body, of the conveying pipeline is provided with a pressure control valve, and the end, located in the mine body, of the conveying pipeline is connected with a fire extinguishment pipe. Through the conveying device, the liquid-state carbon dioxide can be directly conveyed. The invention further discloses a conveying method. The method comprises the steps of arranging the conveying pipeline, arranging a fire extinguishment pipe, connecting the conveying pipeline with the gas-state carbon dioxide storage tank and the liquid-state carbon dioxide storage tank, injecting the gas-state carbon dioxide into the conveying pipeline for pressure rising, injecting the liquid-state carbon dioxide into the conveying pipeline for fire extinguishment and the like. Long-distance conveying of the liquid-state carbon dioxide can be simply, effectively and rapidly achieved.

The utility model relates to an automatic fire extinguishing device for a fire detection tube used in an AC and DC power supply system in a substation, belonging to the field of fire protection. The gas fire extinguishing agent bottle is set near the AC and DC power supply cabinet or control cabinet in the substation; the fire extinguishing agent bottle is equipped with a weighing device to weigh the weight of the fire extinguishing agent in the bottle in real time; When a fire breaks out in the protected object, the fire detection tube above the protected object will melt and explode at the point where it first reaches the melting point, and the gas fire extinguishing agent in the fire detection pipe will be released, and the fire extinguishing agent release valve will be activated, and the fire extinguishing agent bottle will flow from the fire extinguishing agent bottle immediately. The gas fire extinguishing agent is continuously released in the fire detection tube, and the non-submerged fire extinguishing agent release mode is adopted. The gas fire extinguishing agent is sprayed from the melting blast hole of the fire detection tube to the root of the fire source, and the fire source is effectively extinguished instantly, and the protected object The flame just generated due to over-current or over-temperature is extinguished in the bud, and at the same time, the passive alarm contact in the weighing device is closed, and an alarm signal is output to the outside.

The invention discloses a bentonite reticular gel foam mud fire prevention and extinguishing agent, and the key point of the technical scheme is that the fire prevention and extinguishing agent is composed of a bentonite composite type flame-retardant foaming agent, an attapulgite clay powder with an air purifying function, inorganic fiber spraying cotton, a sodium-modified bentonite powder, a coal gangue powder, an expanded perlite powder, sodium alginate and water. The ingredients of the bentonite reticular gel foam mud fire prevention and extinguishing agent are inputted into a plow harrow type material mixing machine and are subjected to high speed mixing into the bentonite reticular gel foam mud fire prevention and extinguishing agent. Reticular gel foam mud is jetted to a burning coal layer by an inorganic fiber spraying machine, so as to be beneficial for generation of an integral reticular gel foam mud film in the fire prevention and extinguishing process, the integral reticular gel foam mud film covers and adheres to the surface of the ore layer all the time, contact of the burning coal layer with air is rapidly isolated, coal mines are prevented from continuing to burn, the coal layer is avoided from reburning, and the purposes of flame retardancy and fire prevention and extinguishing are reached; and the bentonite reticular gel foam mud fire prevention and extinguishing agent is applicable to coal mines, mine operating areas and forest fire prevention and extinguishing.

The invention discloses temperature-sensitive hydrogel and a preparation method thereof, and belongs to the technical field of hydrogel. The preparation method of the hydrogel comprises the followingsteps: (1) preparing reaction solution by using methyl cellulose and deionized water; (2) by using the reaction solution as a solvent, respectively preparing NaHCO3 solution and NaOH solution, and then mixing the NaHCO3 solution and the NaOH solution to carry out acid-base titration on a certain amount of acrylic acid, thus obtaining sodium-acrylate monomeric correction liquid with a PH value being 7.0; (3) adding N-isopropylacrylamide into a four-port bottle according to a certain proportion, and slowly dripping a certain amount of the sodium-acrylate monomeric correction liquid into the four-port bottle under the condition of nitrogen protection, thus obtaining dissolving liquid; (4) adding a crosslinking agnet, an initiator and a catalyst into the dissolving liquid to prepare the temperature-sensitive hydrogel. The temperature-sensitive hydrogel disclosed by the invention has good fire-extinguishing performance.

The invention discloses a graded early warning control type fire extinguishing system and method. The system comprises a central processing unit connected with a monitoring module, an acousto-optic alarm module, a video monitoring module, a communication module, a power control module and a fire extinguishing module. The communication module is in remote wireless connection with a control center.The method comprises the steps that a pyroelectric ion detector and a smoke detector detect fire signals; the central processing unit receives detection information of the pyroelectric ion detector and the smoke detector and grades the detection information; the central processing unit controls opening and closing of the monitoring module, the acousto-optic alarm module, the video monitoring module, the power control module and the fire extinguishing module in a graded manner; and an instruction is sent to a control center to enable the control center to perform fire alarm notification. The smoke alarm, the pyroelectric ion detector and the camera are combined to collect fire scene data, grade the collected data through analysis, process the data according to grades and give an alarm, so that resource waste is avoided on the premise that effective fire extinguishing is guaranteed.

An aero fire extinguisher on fire-fighting truck is characterized in that a turbojet engine is arranged on a fire-fighting truck; a fire extinguishing agent cartouche is installed at the rear part of the turbojet engine; a circular water channel is arranged around the mouth of the fire extinguishing agent cartouche; fire extinguishing agent spray nozzles are evenly spread along the circular water channel, which are inclined; the jet axis lines of the inclined fire extinguishing agent spray nozzles form a cone before the fire extinguishing agent cartouche. The invention uses tail gas from the engine as the power of spraying fire extinguishing agent, is mainly used in fire protection in airports, oil and gas fields and large petrochemical enterprises, and meanwhile has functions such as smoke elimination, temperature reduction and dustproof, etc., so that the rescuers can quickly enter the fire scene to rescue the people in trap.

The invention discloses an all-in-view fire detection and artificial intelligence fire extinguishing system and method. The system comprises an all-in-view infrared thermal imaging fire detection device, an artificial intelligence computer and a fire extinguishing device which are sequentially connected; the all-in-view infrared thermal imaging fire detection device is arranged at the front end of the system and is used for probing hot spots through all-in-view infrared scanning, acquiring hot spot imaging data and carrying out quantitative analysis on hot spot imaging data and forming an artificial intelligence linkage strategy according to quantization analysis results; the artificial intelligence computer is used for calculating the association of all hot spots and the layout position of the fire extinguishing device according to the artificial intelligence linkage strategy and the layout position data of the fire extinguishing device, providing a matched fire extinguish plan and controlling the fire extinguishing device according to the fire extinguish plan to control the fire. The fire extinguishing system disclosed by the invention is beneficial to scientific strategy and humanization of fire rescue, and has a great technological advantage and a practical value on all-in-view accurate fire extinguishment and dynamic tracking fire extinguishment of early-stage fire and spreading and development process of the fire.

The present invention provides a high-expansion foam fire extinguishing device capable of obtaining a desired foam rate, which is provided with: a spray nozzle for mixing a foam fire extinguishing agent containing a surfactant in water and pressure-feeding the foam solution; the spray nozzle is built-in And by discharging the above-mentioned bubble water solution from the above-mentioned injection nozzle, the flow channel tube that sucks the air in the discharge area; the foam generation net that is arranged in the above-mentioned flow channel tube and collides with the above-mentioned bubble solution discharged from the above-mentioned spray nozzle is characterized in that, The foam fire extinguishing agent, make the mixing ratio of the above foam fire extinguishing agent relative to the above foam water solution be an adjusted mixing ratio greater than the standard mixing ratio or make the content of the above surfactant relative to the above foam fire extinguishing agent greater than the standard content. rate, so that the mixing ratio of the above-mentioned surfactant in the above-mentioned foam solution reaches the design foam rate concentration.

The invention relates to a fire extinguishing technique and particularly relates to a manufacturing technique of a fire extinguishing bomb which can be released in an airborne manner or used for cannonball launching. The fire extinguishing bomb comprises a cylinder shell provided with a conical warhead; the cylinder shell is provided with a central hole used for placing a low-energy initiating explosive, a fusing device and a firing gear, and a cavity used for holding extinguishing materials; the cavity used for holding extinguishing materials is two or more than two annular- shaped, wherein the liquid extinguishing material is placed in at least one annular-shaped space and powder extinguishing material or foam extinguishing agent is placed in another annular-shaped space; each annular-shaped space is respectively sealed; the ratio of the volume of the central hole to the total volume of the annular-shaped spaces holding the extinguishing materials is controlled at a range from 1-500 to 2000. The extinguishing bomb of the invention is provided with a multi-layer cavity structure in the shell, which can determine the type of the drug placed in different cavities according to the nature and characteristic of the fire scene, combines the physical fire extinguishment and the chemical fire extinguishment, and can put out a fire quickly, moreover, the after-burning does not happen easily, and thus having the advantages of high efficiency, good safety, strong flexibility and low cost.

The invention discloses a solid nitrogen energy storage driving drug. The drug comprises, by weight, 50-70 parts of neutral inorganic salt, 15-22 parts of plant extract containing high carbon, 1-5 parts of active metal powder and 5-15 parts of stabilizer. The solid nitrogen energy storage driving drug converted to inert driving gas by excitation of heat energy is used for driving extinguishant in a fire extinguisher directly, so that dangers caused by the explosive fire extinguisher during processes of production, storage, transportation, mounting, use and the like can be eliminated, safety of the fire extinguisher is improved, and application range is expanded. In addition, size of an extinguisher container is reduced effectively, cost of normal detection and maintenance is reduced, service life of the extinguisher is prolonged greatly, long-term driving and spraying of the extinguishant can be achieved, prohibition and fire suppression for a fire scene are achieved more effectively, and extinguishing efficiency is improved.

The invention provides a sand spraying firefighting device for a transformer substation, which can implement automatic control and improve the diversity of firefighting monitoring and automatic fire-extinguishing functions of the transformer substation so as to reach effective prevention and extinguishing effects. The sand spraying firefighting device comprises a control system, an unmanned aerialvehicle, a fire-extinguishing unit, a firefighting sand recycling device and transformer substation equipment, wherein the control system is used for controlling flight action of the unmanned aerialvehicle and is used for investigating fire behaviors; after an investigating signal of the unmanned aerial vehicle is analyzed and calculated, a corresponding control signal is sent out according to apre-set program to a firefighting unit; the unmanned aerial vehicle is used for receiving instruction action and an investigating direction of the control system and transmitting investigating data to the control system; the firefighting unit is used for receiving a control signal of the control system and carrying out firefighting action; the firefighting sand recycling device is used for recycling, circulating and reutilizing firefighting sand which is used by the transformer substation equipment and the periphery. By adopting the sand spraying firefighting device provided by the invention,a pipeline maintenance problem of a common foam or water spraying device is solved and equipment damage accidents which are possibly caused by false operation of oil discharging and nitrogen injection are avoided, so that effective prevention and extinguishing effects are realized.

The invention discloses a remote control type postponed air exploding fire extinguishing ball and belongs to the technical field of fire fighting special equipment. The remote control type postponed air exploding fire extinguishing ball comprises a fire extinguishing agent storing device, a projection device, a dispersing device, a driving device, an upper shell, a lower shell and a strong double-side sticker, and further comprises an emitting module. The fire extinguishing agent storing device is used for providing substances needed for fire extinguishing. The projection device is used for pushing the fire extinguishing agent storing device and the dispersing device. The dispersing device is used for dispersing the fire extinguishing agent storing device in the air. After the driving device receives instruction information sent by the emitting module, the projection device is started, the shapes of the upper shell and the lower shell form a round shape, and strength protection is provided for the fire extinguishing ball. The remote control type postponed air exploding fire extinguishing ball can be remotely operated and controlled, the fire extinguishing ball has the tumbler characteristic and comprises the double-side sticker, the posture can be stable fast, so that the fire extinguishing agent storing device can be effectively dispersed in the air, and good fire extinguishing efficacy is achieved.

The invention, which relates to the technical field of power cabinets, provides an overheating self-opening type power cabinet based on thermal bimetal. The overheating self-opening type power cabinetcomprises a cabinet frame. A cabinet door is rotatably connected to the front side of the cabinet frame; a lock shell is fixedly mounted at one side, close to the cabinet frame, of the cabinet door;and a lock cylinder is slidably connected to the left side of the lock shell. A limiting frame is fixedly mounted at the left side of the lock shell at the inner side of the cabinet frame; a mountingframe is fixedly mounted at the bottom end of the limiting frame; and a cylinder is fixedly mounted in the mounting frame. According to the overheating self-opening type power cabinet, the limiting ofthe cabinet door can be released and the cabinet door can pop up automatically, so that the fire in the power cabinet can be extinguished effectively and quickly and thus much more time is bought forthe fire extinguishment of the power cabinet; and with a self-opening mechanism of the power cabinet, the cabinet can be reused after fire control, so that the cost is saved and the power cabinet isrepaired conveniently.

The invention discloses a rotary swatting fire extinguisher, comprising an engine (3), a flexible shaft (4), a switch (5), a working rod (7) and a working head (8), wherein the engine (3) is connected with one end of the flexible shaft (4); the other end of the flexible shaft (4) passes through the working rod (7) with the switch (5) to be connected with the spindle (12) of the working head (8) of the front end; and the spindle (12) in the working head (8) is provided with a fire extinguishing soft belt driven by the spindle (12) to rotate. According to the technical scheme disclosed by the invention, workers carry the device to simultaneously quickly extinguish fire and clear a fire scene while the fire scene of a forest fire hazard is extinguished. The rotary swatting fire extinguisher has the advantages of good effect, low cost, and good market popularization and application value, can thoroughly clean, can avoid resurgence and can be quickly reloaded. The earlier the fire hazard is extinguished to eliminate the fire hazard hidden danger, the more loss for the nation and people is saved, and less pollution is reduced for the environment.

The invention relates to an AB type aqueous fire extinguisher which comprises a simple fire extinguishing container and an aqueous fire extinguishing agent packaged in the simple fire extinguishing container. The aqueous fire extinguishing agent comprises a component 1 and a component 2, the component 1 is water, and the component 2 is a main fire extinguishing agent body. The main fire extinguishing agent body is composed of, by weight, 8-20 parts of ammonium chloride, 5-15 parts of carbonate, 13-30 parts of diammonium hydrogen phosphate and 1-15 parts of bicarbonate. The aqueous fire extinguishing agent is packaged in the impact damage type container or the pressure storage type spraying container and made into manual casting type fire extinguishing liquid bombs or fire extinguishing mist spray, the fire extinguishing speed is high, and instant fire extinguishment can be achieved. The AB type aqueous fire extinguisher is small in size, low in weight, convenient to carry and low in cost, fire extinguishment can be achieved rapidly during a quite short period of time for A type fire disasters and B type disasters, reburning is avoided, the safety is high, an operation method is simple, and the AB type aqueous fire extinguisher is suitable for people of all ages to use and can serve as a simple standing fire extinguishing tool for homes, offices and the like.

The invention discloses a basalt mesh gel foam mud fire prevention and extinguishing agent. The key point of the technical scheme adopted by the invention lies in that the basalt mesh gel foam mud fire prevention and extinguishing agent is composed of a basalt composite flame retardant foaming agent, attapulgite pottery clay powder with an air purifying function, inorganic fiber spray coating cotton, vesicular basalt powder, coal gangue powder, expanded perlite powder, sodium alginate and water. The ingredients of the basalt mesh gel foam mud fire prevention and extinguishing agent are input into a rake type mixing machine to undergo high-speed stirring, thus obtaining the basalt mesh gel foam mud fire prevention and extinguishing agent. The mesh gel foam mud is sprayed to a burning coal layer by an inorganic fiber spray coating machine, thus facilitating generating an integral mesh gel foam mud film in a fire prevention and extinguishing process. The film can always cover and adhere to an ore bed surface to rapidly isolate the burning coal layer from air, prevent coal mine from keeping burning and avoid reburning of the coal layer, thus reaching the purposes of flame retardance and fire prevention and extinguishing. The basalt mesh gel foam mud fire prevention and extinguishing agent is suitable for fire prevention and extinguishing of coal mines, mine operation areas and forests.