Intelligent and efficient fire extinguishing device and method based on information of internal and external flow fields of full-liquid-surface tank fire

Abstract

The application discloses an intelligent efficient fire extinguishing device and method based on full-liquid-surface tank fire inside and outside flow field information, which comprises an intelligent sensing system, a power driving system, an intelligent control system, a foam system, a fixing system, a supporting and lifting system and a protection system. The intelligent sensing system is used for measuring the environmental wind direction and the tank body internal flow field, and determining the fire extinguishing position of the intelligent efficient fire extinguishing device; the intelligent control system controls the power driving system to reach the specified fire extinguishing position according to the sensing system; the foam system is used for spraying foam; the fixing system is used for fixing the intelligent efficient fire extinguishing device; the supporting and lifting system is used for driving the lifting and / or rotation of the cooling spray head and the fire water cannon; and the protection system is used for protecting the fire extinguishing device. The movement, positioning and fire extinguishing of the whole fire extinguishing device are uniformly controlled by the intelligent control system. The device combines the external wind field and the tank body internal flow field to realize tank area intelligent fire extinguishing, and effectively solves the problems that the existing fire extinguishing device cannot be intelligently positioned and efficiently extinguished.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of storage tank fire, and particularly relates to an intelligent and efficient fire extinguishing device and method based on full-liquid-surface storage tank fire inner and outer flow field information. BACKGROUND

[0002] With the development of economy, the demand for oil energy of each country is increasing day by day. In order to meet the energy storage demand, a large number of oil storage tanks are built in the country, and the single capacity and quantity of the oil storage tanks are rising.

[0003] At present, the fire extinguishing means for the storage tank fire mainly includes two kinds: fixed fire extinguishing device fire extinguishing (fixed fire extinguishing device fixed on the top of the storage tank) and mobile device fire extinguishing (extinguishing by external fire-fighting equipment). The fixed fire extinguishing device fire extinguishing is to extinguish the fire by the fixed fire extinguishing device fixed on the top of the storage tank. When the storage tank fire occurs, the fixed fire extinguishing device is directly opened to inject foam into the storage tank to achieve rapid fire extinguishing. However, due to the great fire in the actual fire and the possibility of explosion in the early stage of the fire, the fixed fire extinguishing device is easily damaged by the fire plume. The mobile device fire extinguishing is to dispatch the fire truck and high spray car by the external fire brigade and the park fire department after the storage tank fire occurs, and to spray fire from a long distance to the on-fire storage tank. This mobile device fire extinguishing method not only wastes time due to personnel scheduling, equipment debugging, site layout and other problems, and thus misses the best fire extinguishing opportunity, but also seriously threatens the life safety of the fire-fighting personnel. More importantly, the foam sprayed by the high spray fire truck from a long distance is easily blown away by the plume in the tank, and the sprayed foam cannot enter the inside of the tank, resulting in low fire extinguishing efficiency.

[0004] In order to overcome the above-mentioned deficiencies of fire extinguishing device, scholars have made relevant research and improvement. Gao Xianong et al. invented a large fixed fire extinguishing system for crude oil storage tank (authorized announcement number CN115581871A), which replaced the traditional high jet fire truck (high spray car) and fixed fire extinguishing device by arranging fixed fire extinguishing device around the large storage tank, solved the problems of easy damage of fixed fire extinguishing device and water supply limitation of high spray car, thereby effectively improving the efficiency of fire extinguishing and rescue. Tan Longmei et al. invented a storage tank fire extinguishing device (authorized announcement number CN110870955A), which realized rapid cooling and fire extinguishing by setting solid powder extinguishing agent unit and foam extinguishing agent unit outside, solved the problem of boiling and spattering during fire extinguishing process. Shibo and Zhou Fubao invented an oil tank area liquid nitrogen automatic fire extinguishing and explosion suppression system (authorized announcement number CN106552386B), which replaced foam with liquid nitrogen to extinguish fire in oil tank, solved the problems of slow response and low efficiency of foam extinguishing, achieved the purpose of automatic and efficient fire extinguishing and explosion suppression in oil tank. Cheng Chao applied a fixed and liftable foam fire extinguishing practical new device (authorized announcement number CN2787249Y), which fixed the fire extinguishing device in a safe position for remote fire extinguishing, thereby reducing the influence of fire on the device, and improving the fire fighting and dispatching efficiency on site.

[0005] Through the research and analysis of the above-mentioned patents and existing technologies, it can be known that the existing fire extinguishing device for storage tank fire has certain limitations in structure and function. On the one hand, the problem of easy damage of existing fixed fire extinguishing device by strong radiation of fire field has not been effectively solved, and the current improvement measures are usually to improve the jet efficiency of fire extinguishing device or change the fixed fire extinguishing device from the top of the tank to be arranged around the storage tank; for mobile device fire extinguishing, it is often through shortening the fire fighting personnel dispatching time and strengthening the jet flow of high spray car to improve the fire extinguishing efficiency of mobile device, but this fire extinguishing method still cannot solve the problems of low efficiency of foam entering the inside of tank body and being blown away by fire plume.

[0006] On the other hand, in order to reduce the harm of storage tank fire to fire fighting and rescue personnel, China vigorously promotes the application of intelligent fire extinguishing equipment, but the existing storage tank intelligent fire extinguishing device has not really realized intelligence and automation, and its operation process is mainly controlled remotely by personnel.

[0007] In the past two years, the research group has been conducting research related to storage tank fires and has developed a device that simulates the effect of the sidewall of a storage tank on the behavior of a storage tank oil pool fire (Patent No. CN106552386B). The research group has conducted a series of scaled-down storage tank fire experiments using this device and has conducted a large number of full-scale storage tank fire simulations. The research has found that in a storage tank fire, the downwind side is greatly affected by the radiation of the flame, and the fire-fighting equipment arranged on the downwind side of the storage tank is more likely to be damaged. At the same time, it is found that during a storage tank fire, the storage tank fire will exhibit a "dive" phenomenon, i.e., the flame will intermittently appear inside the storage tank. This phenomenon will consume a large amount of oxygen inside the storage tank, causing a local pressure difference inside the burning storage tank, forming an "air intake channel" and a "plume channel". The "air intake channel" (negative pressure) will suck in external air into the storage tank to maintain the combustion of the storage tank fire, while the combustion products will be affected by the "plume channel" (positive pressure) and "blown out" of the storage tank. This phenomenon will directly affect the efficiency of high-pressure vehicle foam injection (mobile device fire extinguishing). When the injection position of the high-pressure vehicle is near the "air intake channel", the injected foam will be directly sucked into the storage tank along with the external air, achieving rapid fire extinguishing. Conversely, when the injection position of the high-pressure vehicle is near the "plume channel", the foam will be difficult to enter the storage tank due to the influence of the plume, resulting in low fire extinguishing efficiency. Therefore, based on this phenomenon, an intelligent and efficient fire extinguishing device based on the internal and external flow field information of a full-liquid storage tank fire is developed. The device can intelligently determine the optimal injection position for fire extinguishing based on the flow field information, and can identify the "air intake channel" based on the internal flow field of the storage tank, achieving efficient fire extinguishing. SUMMARY

[0008] The present application aims to solve at least one of the technical problems existing in the prior art of storage tank fire. To this end, the present application proposes an intelligent and efficient fire extinguishing device based on the internal and external flow field information of a full-liquid storage tank fire. The device can intelligently move to the appropriate fire extinguishing position based on the flow field in the storage tank fire, and can accurately inject foam into the storage tank based on the internal flow field of the storage tank, solving the technical problems of inaccurate and inefficient foam injection into the storage tank and the dispersion of fire extinguishing foam by the plume. This greatly improves the efficiency of storage tank fire extinguishing and effectively saves the amount of foam used.

[0009] The present application also aims to propose an intelligent and efficient fire extinguishing method based on the internal and external flow field information of a full-liquid storage tank fire.

[0010] According to an embodiment of the present application, an intelligent and efficient fire extinguishing device based on full-liquid-surface tank fire internal and external flow field information comprises: an intelligent sensing system, which is used to acquire the internal and external flow field information of the burning tank, and then determine the upwind side position of the burning tank and the internal "air inlet channel" position of the burning tank, so as to realize the planning of the intelligent and efficient fire extinguishing device moving route and the determination of the foam nozzle spraying angle; a power driving system, which is used to provide energy and drive the intelligent and efficient fire extinguishing device to move; an intelligent control system, which is used to receive and identify the running state of the tank and intelligently control the operation of each system of the intelligent and efficient fire extinguishing device; a foam system, which is used to spray foam to the burning tank; a fixing system, which is used to fix the intelligent and efficient fire extinguishing device around the burning tank; a supporting and lifting system, which is used to drive the lifting and / or rotation of the cooling nozzle and the fire water cannon; and a protection system, which is used to protect and cool the intelligent and efficient fire extinguishing device, and ensure the normal operation of the intelligent and efficient fire extinguishing device in a high-temperature environment.

[0011] Advantageously, the intelligent control system can be used to monitor and identify the running state of the tank, automatically plan the moving route of the intelligent and efficient fire extinguishing device and control the intelligent and efficient fire extinguishing device to move by determining the number and coordinates of the burning tank.

[0012] According to an embodiment of the present application, an intelligent and efficient fire extinguishing device based on full-liquid-surface tank fire internal and external flow field information comprises: an intelligent sensing system, which comprises a wind direction and flow field measuring device and a pressure and flow field measuring device. The wind direction and flow field measuring device is arranged on an automatic telescopic pipeline and used to collect the external flow field and wind direction information of the burning tank, and then confirm the upwind side position of the burning tank; and the pressure and flow field measuring device is arranged on a foam nozzle and used to measure the flow field distribution in the burning tank, and then confirm the position of the "air inlet channel".

[0013] Advantageously, the intelligent and efficient fire extinguishing device can move to the upwind side position of the burning tank according to the wind direction and flow field information obtained by the wind direction and flow field measuring device near the burning tank, which can effectively reduce the damage of the fire plume to the intelligent and efficient fire extinguishing device.

[0014] Advantageously, the intelligent and efficient fire extinguishing device can move to the upwind side position of the burning tank according to the wind direction and flow field information obtained by the wind direction and flow field measuring device near the burning tank, which can effectively reduce the damage of the fire plume to the intelligent and efficient fire extinguishing device.

[0015] The intelligent high-efficiency fire extinguishing device based on the internal and external flow field information of the full-liquid-surface storage tank fire according to the embodiment of the present application, the power driving system comprises a power chassis and a power supply, the power chassis is used to drive the intelligent high-efficiency fire extinguishing device to travel and / or turn; the power supply is used to provide energy for the intelligent high-efficiency fire extinguishing device.

[0016] Optionally, the power chassis can be selected as a motor vehicle to ensure that the intelligent high-efficiency fire extinguishing device travels and / or turns quickly, which is not specifically limited here.

[0017] The intelligent high-efficiency fire extinguishing device based on the internal and external flow field information of the full-liquid-surface storage tank fire according to the embodiment of the present application, the intelligent control system is located on the power chassis, the intelligent control system is used to monitor and identify the running state of the storage tank; the intelligent control system is also used to acquire and identify the information of the intelligent sensing system, and then plan the route of the power chassis and the direction of the fire water cannon; the intelligent control system is also used to control the power chassis to travel and / or turn, and then drive the movement of the intelligent high-efficiency fire extinguishing device; the intelligent control system is also used to control the foam agent supply tank in the foam system to supply foam liquid to the fire water cannon, and the intelligent control system is also used to control the extension, turning and foam spraying of the fire water cannon; the intelligent control system is also used to control the extension of the extension rod in the fixing system, and is used to control the electromagnetic iron adsorption device to adsorb the side wall of the storage tank; the intelligent control system is also used to control the lifting and / or rotation of the supporting lifting system; the intelligent control system is also used to control the on-off of the water pump in the protection system.

[0018] The intelligent high-efficiency fire extinguishing device based on the internal and external flow field information of the full-liquid-surface storage tank fire according to the embodiment of the present application, the foam system comprises the foam liquid supply tank, the foam liquid supply pipeline and the fire water cannon, the foam liquid supply tank is used to store and supply foam liquid, the foam liquid supply tank comprises a foam liquid supply flange, the foam liquid supply flange is used to be connected with a foam liquid base station to input foam liquid into the foam liquid supply tank; the foam liquid supply pipeline is connected with the foam liquid supply tank and the fire water cannon on both sides; the fire water cannon is used to spray foam into the interior of the fire storage tank, the fire water cannon comprises the automatic extension pipeline, the diverter and the foam spray head, the automatic extension pipeline is arranged on the lifting platform and is used to extend or retract the diverter, the foam spray head and the pressure and flow field measuring device; the diverter is arranged on the top of the automatic extension pipeline and is connected with the foam spray head, the diverter is used to adjust the spraying direction of the foam spray head and the monitoring angle of the pressure and flow field measuring device; the foam spray head is used to disperse and spray foam.

[0019] Optionally, the automatic telescopic pipeline selects an electric telescopic pipeline, which can be intelligently controlled by the intelligent control system, and no limitation is made herein.

[0020] Optionally, the foam liquid supply pipeline can be a telescopic hose, which can freely move within the lifting range of the support lifting system, and the foam liquid supply pipeline does not affect the lifting of the support lifting system, and no specific limitation is made herein.

[0021] Advantageously, the foam nozzle is detachable, and can be replaced on site when the foam nozzle is damaged.

[0022] Advantageously, the automatic telescopic pipeline can drive the pressure and flow field measuring device to extend into the interior of the storage tank, thereby improving the identification capability of the flow field in the interior of the storage tank.

[0023] According to the intelligent and efficient fire extinguishing device based on the internal and external flow field information of the full-liquid-surface storage tank fire of an embodiment of the present application, the fixed system includes the telescopic rod and the electromagnet adsorption device, the telescopic rod is located on one side of the power chassis and is used for adjusting the position of the electromagnet adsorption device, and the electromagnet adsorption device is located on the top of the telescopic rod and is used for adsorbing the side wall of the storage tank, so that the power chassis is fixed around the storage tank.

[0024] According to the intelligent and efficient fire extinguishing device based on the internal and external flow field information of the full-liquid-surface storage tank fire of an embodiment of the present application, the support lifting system includes the lifting platform, the rotating device and the automatic lifting support rod, the lifting platform is fixed on the top of the automatic lifting support rod and is used for placing and fixing the fire monitor, the intelligent sensing system and the cooling nozzle, the rotating device is used for driving the rotation of the lifting platform, thereby adjusting the spraying direction of the fire monitor, and the automatic lifting support rod is used for driving the lifting of the lifting platform, thereby driving the lifting of the fire monitor, the cooling nozzle and the intelligent sensing system.

[0025] According to the intelligent and efficient fire extinguishing device based on the internal and external flow field information of the full-liquid-surface storage tank fire of an embodiment of the present application, the protection system includes the water tank, the water pump, the telescopic water supply pipeline, the cooling nozzle and the water circulation device, the water tank is placed on the power chassis and is used for water storage and water supply, the water tank includes the water supply flange and the water supply pipeline, the water supply flange is used for connecting the water supply equipment to supply water to the water tank, and the water supply pipeline is connected with the water tank and the telescopic water supply pipeline on both sides; the water pump is connected with the telescopic water supply pipeline and the water circulation device on both ends and is used for pumping water from the water circulation device to supply the cooling nozzle; the telescopic water supply pipeline is used for supplying water to the cooling nozzle; the cooling nozzle is fixed on the lifting platform and is used for spraying cooling water mist; and the water circulation device is used for collecting the water sprayed by the cooling nozzle.

[0026] Optionally, the telescopic water supply pipeline can be a telescopic hose, which can freely move within the lifting range of the support lifting system. The telescopic water supply pipeline should not affect the lifting of the support lifting system, and no specific restrictions are made here.

[0027] Optionally, the water circulation device can be a metal reservoir of different shapes, which is fixed on the power chassis and is not easily damaged or deformed by flame radiation. The size of the water circulation device should cover the water spray radius of the cooling nozzle to collect most of the water sprayed by the cooling nozzle, improve water resource utilization, and reduce the probability of failure of the cooling nozzle due to lack of water.

[0028] Advantageously, the water mist sprayed by the cooling nozzle can easily cover the intelligent efficient fire extinguishing device to isolate and reduce the fire plume and the surface temperature of the intelligent efficient fire extinguishing device.

[0029] According to an embodiment of the present application, a method for intelligent and efficient fire extinguishing based on internal and external flow field information of a full-liquid-surface tank fire includes the following steps: when a tank fire occurs, an intelligent control system is used to monitor and identify the operating state of the tank, confirm the location of the burning tank, and control the intelligent efficient fire extinguishing device to move towards the burning tank; after the intelligent efficient fire extinguishing device moves to the vicinity of the burning tank, the upwind side position of the burning tank is determined by a wind direction and flow field measuring device; the intelligent control system controls the intelligent efficient fire extinguishing device to move to the upwind side and controls the fixing system to be adsorbed and fixed to the side wall of the tank; the intelligent control system controls the protection system to perform a spraying and cooling operation; the intelligent control system controls the support lifting system to lift the fire monitor to the top of the tank; the intelligent control system controls the automatic telescopic pipeline to extend the pressure and flow field measuring device and the foam nozzle into the tank; the intelligent control system controls the steering gear to rotate to adjust the monitoring angle of the pressure and flow field measuring device; and the intelligent control system controls the fire monitor to spray foam.

[0030] Additional aspects and advantages of the present application will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0032] Figure 1 The overall structure of the intelligent efficient fire extinguishing device based on internal and external flow field information of a full-liquid-surface tank fire for an embodiment of the present application is shown in the schematic diagram.

[0033] Figure 2 The front view of the intelligent efficient fire extinguishing device based on internal and external flow field information of a full-liquid-surface tank fire for an embodiment of the present application is shown.

[0034] Figure 3The left view of the intelligent and efficient fire extinguishing device based on the information of the internal and external flow field of the full-liquid-surface storage tank fire of one embodiment of the present application.

[0035] Reference signs:

[0036] The intelligent and efficient fire extinguishing device 1000 based on the information of the internal and external flow field of the full-liquid-surface storage tank fire,

[0037] The intelligent sensing system 100,

[0038] The wind direction and flow field measuring device 110, the pressure and flow field measuring device 120,

[0039] The power driving system 200,

[0040] The power chassis 210, the power supply 220,

[0041] The intelligent control system 300,

[0042] The foam system 400,

[0043] The foam liquid supply tank 410, the foam liquid supply flange 411,

[0044] The foam liquid supply pipeline 420, the fire water cannon 430, the automatic telescopic pipeline 431, the diverter 432, the foam nozzle 433,

[0045] The fixing system 500,

[0046] The telescopic rod 510, the electromagnet adsorption device 520,

[0047] The support lifting system 600,

[0048] The lifting platform 610, the rotating device 620, the automatic lifting support rod 630,

[0049] The protection system 700,

[0050] The water tank 710, the water supply flange 711, the water supply pipeline 712,

[0051] The water pump 720, the telescopic water supply pipeline 730, the cooling nozzle 740, the water circulation device 750. DETAILED DESCRIPTION

[0052] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0053] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0054] An intelligent and efficient fire extinguishing device based on full-liquid-surface storage tank fire inside and outside flow field information is described below with reference to the accompanying drawings of the specification.

[0055] The intelligent and efficient fire extinguishing device 1000 based on full-liquid-surface storage tank fire inside and outside flow field information, in combination with the drawings, includes an intelligent sensing system 100, a power driving system 200, an intelligent control system 300, a foam system 400, a fixing system 500, a support lifting system 600, and a protection system 700.

[0056] As shown in Figure 1 and Figure 2 , the intelligent sensing system 100 includes a wind direction and flow field measuring device 110 and a pressure and flow field measuring device 120. The wind direction and flow field measuring device 110 is arranged on the automatic telescopic pipeline 431 to obtain the flow field information of the fire field; the pressure and flow field measuring device 120 is arranged on the foam nozzle 433 to detect the internal flow field distribution of the burning storage tank.

[0057] Optionally, the wind direction and flow field measuring device 110 is a wind direction indicator, which can obtain the wind direction change information near the burning storage tank to determine the upwind side position of the fire field.

[0058] In some specific examples of the present application, as shown in Figure 1 , the wind direction and flow field measuring device 110 obtains wind direction monitoring information near the burning storage tank to confirm the upwind side position of the burning storage tank.

[0059] Optionally, the pressure and flow field measuring device 120 is a Pitot tube, which is used to measure the local pressure value inside the storage tank, and through the pressure distribution, the "air inlet passage" position of the burning storage tank is confirmed.

[0060] In some specific examples of the present application, the state information measured by the pressure and flow field measuring device 120 is negative pressure, indicating that the position where the foam nozzle 433 is located is the "air inlet passage" position of the storage tank fire, that is, the position can be used for fire extinguishing operation, and the foam sprayed at the position can be effectively entrained into the inside of the storage tank; on the contrary, the state information measured by the pressure and flow field measuring device 120 is positive pressure, indicating that the position is a plume passage, and the sprayed foam will be blown away or blown out of the storage tank, so the intelligent and efficient fire extinguishing device 1000 must be moved and the fire extinguishing injection position must be reselected.

[0061] Referring to Figure 1 As shown in

[0062] Optionally, the power chassis 210 is a motor vehicle with the advantages of fast marching and large load, ensuring the stable marching and / or turning of the intelligent efficient fire extinguishing device 1000, which is not specifically limited here.

[0063] Continuing to refer to Figure 1 As shown in

[0064] In combination with Figure 1 and Figure 3As shown, the foam system 400 is installed on the power chassis 210, the foam system 400 includes a foam liquid supply tank 410, a foam liquid supply flange 411, a foam liquid supply pipeline 420, a fire water cannon 430, an automatic telescopic pipeline 431, a diverter 432, and a foam nozzle 433. The foam liquid supply tank 410 is used to store and supply foam liquid, and includes the foam liquid supply flange 411, which is used to connect a foam liquid base station to supply foam liquid to the foam liquid supply tank 410. The foam liquid supply pipeline 420 is connected to the foam liquid supply tank 410 and the fire water cannon 430 on both sides. The fire water cannon 430 is used to spray foam into the tank interior, and includes the automatic telescopic pipeline 431, the diverter 432, and the foam nozzle 433. The automatic telescopic pipeline 431 is arranged on the lifting platform 610, and is used to control the diverter 432, the foam nozzle 433, and the pressure and flow field measuring device 120 to extend or retract. The diverter 432 is arranged on the top of the automatic telescopic pipeline 431, and is connected to the foam nozzle 433, and is used to adjust the spray direction of the foam nozzle 433 and the monitoring angle of the pressure and flow field measuring device 120. The foam nozzle 433 is used to disperse and spray foam.

[0065] Optionally, the foam liquid in the foam liquid supply tank 410 can be a high-concentration fluoroprotein foam extinguishing agent, which is not limited here.

[0066] Advantageously, when the foam liquid in the supply system 400 is insufficient during actual fire rescue, the foam liquid can be obtained through the foam liquid supply flange 411 connected to the foam liquid base station.

[0067] In combination Figure 1 and Figure 2 As shown, the fixing system 500 includes a telescopic rod 510 and an electromagnet adsorption device 520. The telescopic rod 510 is arranged on one side of the power chassis 210, and is used to adjust the position of the electromagnet adsorption device 520. The electromagnet adsorption device 520 is arranged on the top of the telescopic rod 510, and is used to adsorb the side wall of the tank, so as to fix the power chassis 210 around the tank.

[0068] Optionally, the electromagnet adsorption device 520 is a direct-current electromagnet, which is not limited here.

[0069] Optionally, the telescopic rod 510 is an electric push rod, and ignores the transmission mechanism, which can be used to push out or retract the electromagnet adsorption device 510, which is not limited here.

[0070] In combination Figure 1 and Figure 2As shown, the support lifting system 600 comprises a lifting platform 610, a rotating device 620 and an automatic lifting support 630. The lifting platform 610 is fixed on the rotating device 620 for placing and fixing the cooling nozzle 740, the fire water cannon 430 and the intelligent sensing system 100; the rotating device 620 is installed on the top of the automatic lifting support 630, and the rotating device 620 is used to drive the rotation of the lifting platform 610, thereby adjusting the spraying direction of the fire water cannon 430; the automatic lifting support 630 is used to drive the lifting of the lifting platform 610, thereby driving the lifting of the fire water cannon 430, the cooling nozzle 740 and the intelligent sensing system 100.

[0071] Optionally, the automatic lifting support 630 can be selected as an electric push rod, and a transmission mechanism is omitted, so that the automatic lifting support 630 can be extended and retracted upward and downward, thereby driving the lifting of the lifting platform 630.

[0072] Optionally, the number of the automatic lifting support 630 is at least one, so that the automatic lifting support 630 can stably lift the lifting platform 610, which is not limited here.

[0073] As shown in Figure 1 and Figure 2 The protection system 700 comprises a water tank 710, a water supply flange 711, a water supply pipeline 712, a water pump 720, an extendable water supply pipeline 730, a cooling nozzle 740 and a water circulation device 750. The water tank 710 is used for water storage and water supply; the water supply flange 711 is used for connecting external water supply equipment to supply water to the water tank 710; the water supply pipeline 712 is connected with the water tank 710 and the extendable water supply pipeline 730 at both sides; the water pump 720 is connected with the cooling nozzle 740 and the water circulation device 750 at both sides, and is used to pump water from the water circulation device 750 to the cooling nozzle 740; the extendable water supply pipeline 730 is connected with the water pump 720, the cooling nozzle 740 and the water supply pipeline 712; the cooling nozzle 740 is placed on the lifting platform 510 and is used to spray cooling water mist; and the water circulation device 750 is used to collect water sprayed by the cooling nozzle 740.

[0074] Optionally, the water circulation device 750 is a rectangular metal water storage tank, and the size of the water circulation device 750 can completely cover the water spraying radius of the cooling nozzle 740.

[0075] Advantageously, the cooling water mist sprayed by the cooling nozzle 740 can easily cover the support lifting system 600 and the fire water cannon 430, so as to achieve the protection effect of isolating the fire plume.

[0076] Advantageously, in actual fire rescue, when the water in the water tank 710 is insufficient, the water source can be obtained through the water supply flange 711 connected with the external water pipe, so as to ensure that the protection system 700 can stably spray the cooling water mist.

[0077] A method for intelligent and efficient fire extinguishing based on internal and external flow field information of full-liquid-surface tank fire is described below with reference to the accompanying drawings of the specification.

[0078] The method for intelligent and efficient fire extinguishing based on internal and external flow field information of full-liquid-surface tank fire according to the embodiment of the present application comprises the following steps:

[0079] Step S1: When the tank fire occurs, the intelligent control system 300 is used to monitor and identify the running state of the tank, confirm the location of the burning tank, and control the intelligent and efficient fire extinguishing device 1000 to move to the burning tank.

[0080] Step S2: After the intelligent and efficient fire extinguishing device 1000 moves to the vicinity of the burning tank, the wind direction and flow field measuring device 110 is used to determine the upwind side position of the burning tank.

[0081] Step S3: The intelligent control system 300 controls the intelligent and efficient fire extinguishing device 1000 to move to the upwind side and controls the fixed system 500 to be adsorbed and fixed with the tank side wall.

[0082] Step S4: The intelligent control system 300 controls the protection system 700 to perform the spray cooling operation.

[0083] In step S4, the intelligent control system 300 controls the water pump 720 to perform the water pumping operation.

[0084] Step S5: The intelligent control system 300 controls the support lifting system 500 to lift the fire water cannon 430 to the tank top position.

[0085] Step S6: The intelligent control system 300 controls the automatic telescopic pipeline 431 to extend the pressure and flow field measuring device 120 and the foam nozzle 433 into the tank interior.

[0086] Step S7: The steering device 432 is controlled to rotate to adjust the monitoring angle of the pressure and flow field measuring device 120.

[0087] By adjusting the measuring direction of the pressure and flow field measuring device 120, the "air inlet passage" position of the burning tank can be measured, which is beneficial to the rapid entry of the sprayed foam into the tank interior under the action of air entrainment.

[0088] Step S8: The intelligent control system 300 controls the fire water cannon 430 to spray foam.

[0089] The method for intelligent and efficient fire extinguishing based on internal and external flow field information of full-liquid-surface tank fire can accurately find the upwind side position of the tank fire and the "air inlet passage" position in the burning tank by judging the internal and external flow field information of the tank through the intelligent sensing system 100, so as to accurately spray the foam into the tank interior, realize efficient fire extinguishing, and save the use amount of foam during fire extinguishing.

[0090] In the description of the present application, it should be noted that unless specifically defined and limited, the terms "fixed", "mounted", "connected" should be understood broadly, for example, "connected" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0091] The basic fire extinguishing method and the flow field change rule judgment in the tank fire field in the intelligent efficient fire extinguishing device 1000 and method based on the full liquid surface tank fire in and out flow field information according to the embodiment of the present application are known to those of ordinary skill in the art, and will not be described in detail here.

[0092] In the description of the present application, the description referring to the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire, characterized in that, include: The intelligent sensing system acquires information about the internal and external flow fields of the burning storage tank, thereby determining the upwind position of the burning tank and the location of the air intake channel inside the tank. This enables the planning of the movement route of the intelligent and efficient fire extinguishing device and the determination of the spray angle of the foam nozzles. When a storage tank fire occurs, the fire will exhibit a downward phenomenon, meaning that the flames will intermittently appear inside the tank, creating an air intake channel. This air intake channel is under negative pressure, which will draw in external air to sustain the combustion inside the tank. The intelligent sensing system includes a pressure and flow field measurement device, which is arranged on the foam nozzle to measure the flow field distribution inside the burning storage tank, thereby confirming the location of the air intake channel, i.e., the location where fire extinguishing operations can be carried out. A power drive system, which provides energy and propels the intelligent and efficient fire extinguishing device to move. The intelligent control system is used to receive and identify the operating status of the storage tank and intelligently control the operation of each system of the intelligent and efficient fire extinguishing device. A foam system for spraying foam onto a burning storage tank; A fixing system is used to fix the intelligent and efficient fire extinguishing device around the burning storage tank; A support lifting system is provided for lifting and / or rotating the cooling nozzles and fire monitors. A protection system is provided to protect and cool the intelligent and efficient fire extinguishing device, ensuring that the intelligent and efficient fire extinguishing device operates normally in high-temperature environments.

2. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 1, characterized in that, The power drive system includes a power chassis and a power source. The power chassis is used to drive the intelligent and efficient fire extinguishing device to move and / or turn. The power source is used to provide energy to the intelligent and efficient fire extinguishing device.

3. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 2, characterized in that, The supporting lifting system includes a lifting platform, a rotating device, and an automatic lifting support rod. The lifting platform is fixed to the top of the automatic lifting support rod and is used to place and fix the fire monitor, the intelligent sensing system, and the cooling nozzle. The rotating device is used to drive the lifting platform to rotate, thereby adjusting the spray direction of the fire monitor. The automatic lifting support rod is used to drive the lifting platform to rise and fall, thereby driving the fire monitor, the cooling nozzle, and the intelligent sensing system to rise and fall.

4. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 2, characterized in that, The fixing system includes a telescopic rod and an electromagnet adsorption device. The telescopic rod is located on one side of the power chassis and is used to adjust the position of the electromagnet adsorption device. The electromagnet adsorption device is located at the top of the telescopic rod and is used to adsorb the side wall of the storage tank, so that the power chassis is fixed around the storage tank.

5. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 3, characterized in that, The foam system includes a foam liquid supply tank, a foam liquid supply pipeline, and a fire monitor. The foam liquid supply tank is used to store and supply foam liquid, and includes a foam liquid supply flange for connecting to an external foam liquid base station to input foam liquid into the supply tank. The foam liquid supply pipeline is connected to the foam liquid supply tank and the fire monitor on both sides. The fire monitor is used to spray foam into the burning tank, and includes an automatic telescopic pipe, a deflector, and foam nozzles. The automatic telescopic pipe is arranged on a lifting platform and is used to extend or retract the deflector, the foam nozzles, and the pressure and flow field measuring device. The deflector is located at the top of the automatic telescopic pipe and connected to the foam nozzles. The deflector is used to adjust the spray direction of the foam nozzles and the monitoring angle of the pressure and flow field measuring device. The foam nozzles are used to disperse and spray foam.

6. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 5, characterized in that, The intelligent sensing system also includes a wind direction and flow field measurement device, which is arranged on an automatic telescopic pipe to collect external flow field and wind direction information of the burning storage tank, thereby confirming the upwind position of the burning storage tank.

7. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 3, characterized in that, The protection system includes a water tank, a water pump, a telescopic water supply pipeline, cooling nozzles, and a water circulation device. The water tank is placed on a power chassis and is used for water storage and supply. The water tank includes a water supply flange and a water supply pipeline. The water supply flange is used to connect an external water supply device to supply water to the water tank. The two ends of the water supply pipeline are connected to the water tank and the telescopic water supply pipeline, respectively. The two ends of the water pump are connected to the telescopic water supply pipeline and the water circulation device, respectively, and are used to draw water from the water circulation device and supply it to the cooling nozzles. The telescopic water supply pipeline is used to supply water to the cooling nozzle; The cooling nozzle is fixed on the lifting platform and is used to spray cooling water mist; the water circulation device is used to collect the water sprayed from the cooling nozzle.

8. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 2, characterized in that, The intelligent control system is located on the power chassis. The intelligent control system is used to monitor and identify the operating status of the storage tank. The intelligent control system is also used to acquire and identify information from the intelligent sensing system, thereby planning the route of the power chassis and the direction of the fire monitor. The intelligent control system is also used to control the movement and / or steering of the power chassis, thereby driving the movement of the intelligent and efficient fire extinguishing device.

9. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 5, characterized in that, The intelligent control system is also used to control the foam agent supply tank in the foam system to supply foam liquid to the fire monitor, and the intelligent control system is also used to control the extension, turning and spraying of foam by the fire monitor.

10. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 4, characterized in that, The intelligent control system is also used to control the extension and retraction of the telescopic rod in the fixed system, and to control the electromagnet adsorption device to adsorb the side wall of the storage tank.

11. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 3, characterized in that, The intelligent control system is also used to control the lifting and / or rotation of the support lifting system.

12. The intelligent and efficient fire extinguishing device based on internal and external flow field information of a full-level liquid tank fire according to claim 7, characterized in that, The intelligent control system is also used to control the switching on and off of the water pumps in the protection system.

13. A smart and efficient fire extinguishing method based on internal and external flow field information of a full-level liquid tank fire, used in any one of the smart and efficient fire extinguishing devices based on internal and external flow field information of a full-level liquid tank fire as described in any one of claims 1-12, characterized in that, Includes the following steps: When a storage tank fire occurs, the intelligent control system is used to monitor and identify the operating status of the storage tank, confirm the location of the burning storage tank, and control the intelligent and efficient fire extinguishing device to move towards the burning storage tank. After the intelligent and efficient fire extinguishing device is moved to the vicinity of the burning storage tank, the upwind position of the burning storage tank is determined by the wind direction and flow field measurement device. The intelligent control system controls the intelligent and efficient fire extinguishing device to move to the upwind side and controls the fixing system to adhere and fix to the side wall of the storage tank; The intelligent control system controls the protective system to perform spray cooling operations. The intelligent control system controls the support lifting system to raise the fire monitor to the top of the storage tank; The intelligent control system controls the automatic telescopic pipe to extend the pressure and flow field measuring device and foam nozzle into the storage tank; The intelligent control system controls the steering gear to rotate in order to adjust the monitoring angle of the pressure and flow field measurement device; The intelligent control system controls the fire monitors to spray foam.

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