Full-surface fire extinguishing training device for adjustable liquid level tank

Abstract

The application discloses a kind of adjustable liquid level height's storage tank full surface fire extinguishing simulation device, comprising: storage tank system, float system, supply device, ignition device, limiting device, cooling device, fire extinguishing device, monitoring device, control device.Storage tank system upper part is open, and water is injected to inside by supply device;Float system floats on water surface, can move up and down, position is controlled by water level and limiting device jointly, limiting device can avoid float system sinking plate;Supply device is used to inject oil to float system, and oil product can simulate full surface fire after being ignited by ignition device;Cooling device can spray water to protect tank wall;Fire extinguishing device sprays foam to extinguish fire;Monitoring device can monitor flame state information in extinguishing fire;Control device can intelligently control water injection, oil injection, ignition, fire extinguishing and the like process, realize the automation of entire process.The application device can realize the extinguishing fire simulation of full surface fire of storage tank under different liquid level height, and has important significance to fire-fighting routine training.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of storage tank fire simulation and rehearsal, and specifically relates to a storage tank full-surface fire extinguishing rehearsal device with adjustable liquid level height. BACKGROUND

[0002] With the rapid development of the global economy and the strategic demand of the energy industry itself, the single-tank volume and quantity of storage tanks in chemical industry parks are constantly rising, and the tank farm scale is constantly expanding, but this also increases the fire hazard of storage tanks in chemical industry parks. Once a storage tank fire accident occurs, it is easy to cause the fire to spread, resulting in serious personnel casualties, property losses and environmental pollution. Therefore, it is very important to continuously improve the fire extinguishing ability and response ability of storage tank fires.

[0003] At present, storage tank fire safety has also been valued by local fire departments, and local fire departments often continuously improve the fire extinguishing ability and response ability through regular rehearsals to ensure that they can efficiently and safely respond to storage tank fire extinguishing. There are generally two forms of actual storage tank fire rehearsal, one is small-scale rehearsal, that is, small storage tanks are made of special materials, and the small storage tanks have similar shape characteristics to real storage tanks, thereby simulating the scene of storage tank fire and conducting small-scale simulated fire extinguishing rehearsal; the other is large-scale rehearsal, which is usually carried out in a dedicated training site or a real chemical industry park, and often adopts the form of no ignition or small-scale ignition to simulate fire extinguishing rehearsal under the scene of real storage tanks. Although the conventional storage tank fire rehearsal method can enhance the actual combat ability and improve the safety awareness to some extent, there are still some defects and deficiencies. For example, the existing storage tank fire rehearsal lacks the realism of the fire scene, and the small-scale rehearsal or large-scale non-ignition rehearsal scene cannot completely simulate the complexity and urgency of the fire; in addition, the traditional storage tank fire rehearsal consumes a large amount of manpower, material resources and financial resources, causing a large amount of waste of oil and water resources.

[0004] At present, some scholars have developed related devices for tank fire simulation training. Li Ying et al. designed a gas flame control method based on field simulation technology (Patent No. CN113350729B), which sets up an array of gas outlets in advance, adjusts the size parameters of the gas outlets, and simulates the traditional fire source of fire training by using gas fire. Wang Pei et al. designed a combustion device for fire simulation training system (Patent No. CN115779326B), which supplies fuel through a gas fuel system and simulates oil tank fire by using gas jet fire, thereby analyzing the heat release rate and temperature parameters in fire simulation. Fu Jingchun et al. designed a liquefied gas tank fire training simulation device (Patent No. CN204596218), which sets up gas burners on the top, middle and bottom of the tank to simulate the scenario of fire occurring at the top, middle and bottom of the tank. Lu Shouxiang et al. designed an internal floating roof tank fire simulation device (Patent No. CN207441057U), which sets up a water bath burner on a fixed internal floating roof structure, provides gas source through an external gas supply system, and provides a stable ignition source by an ignition mechanism to simulate internal floating roof tank fire. Fu Jingchun et al. designed a tank fire training simulation device (Patent No. CN204204305N), which sets up a tray filled with water on the top of the tank and evenly arranges burner nozzles at the bottom of the tray. The nozzles spray mixed gas and combustion-supporting gas, which is then ignited by an igniter to simulate a full-surface fire on the top of the tank. Gao Jifeng et al. designed a large-scale tank top full-liquid surface fire simulation device (Patent No. CN109817076A), which sets up a cylindrical target material on the center of the tank top, and then sprays normal temperature water and liquid propane onto the cylindrical target material surface and flows down along the cylindrical target material surface through normal temperature water pipeline and liquid propane pipeline. The liquid propane gasifies by contacting the normal temperature water during the flow process, and then ignites by using an ignition device to simulate a full-liquid surface fire on the tank top. The research group previously designed a device to simulate the influence of side wall on the behavior of tank oil pool fire (Patent No. CN115290645B), which uses a gas supply device to provide combustible gas and a side wall simulation device composed of a transparent cylinder and a lifting platform to simulate the combustion behavior of tank oil pool fire under different side wall heights. The research group also previously designed a device to simulate tank fire extinguishing and reignition under different liquid level heights (Patent No. CN115792084B), which changes the height of the non-combustible liquid layer inside the tank and introduces combustible gas from the bottom to study the tank fire extinguishing and reignition processes.

[0005] Through the research and analysis of the existing technology, it can be concluded that the existing fire simulation training device has the following problems. On the one hand, the existing simulation training device mostly uses gas fire as fuel to simulate the actual storage tank fire, and its combustion characteristics and internal flow field are obviously different from the actual liquid storage tank fire, thereby affecting the fire extinguishing effect of the foam and failing to well simulate the fire extinguishing process of the storage tank fire. On the other hand, the existing storage tank fire simulation device can only simulate the fire occurring at the fixed position of the storage tank (such as the top of the storage tank, the middle of the storage tank, the bottom of the storage tank and the position of the floating roof in the storage tank), and cannot realize the adjustment of the liquid level height. Therefore, it is urgent to develop a storage tank full-surface fire extinguishing training device capable of realizing continuous change of liquid level height. SUMMARY

[0006] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a storage tank full-surface fire extinguishing training device capable of adjusting the liquid level height, which uses liquid fuel, can simulate the full-surface combustion process of the storage tank at different liquid level heights, and characterizes the required state information, while saving a large amount of resources and improving the response ability of rescue personnel to storage tank fires under different burning conditions, thereby supporting the simulation training technology for storage tank fire fighting.

[0007] According to the storage tank full-surface fire extinguishing training device capable of adjusting the liquid level height, the storage tank system is an open-top tank body, and the water layer is loaded in the inside of the tank body, and the height of the water layer is adjustable. The floating disc system floats on the water layer, and the oil product is contained in the inside of the floating disc system, and the floating disc system can float up and down with the change of the height of the water layer. The ignition device is fixed in the floating disc system, and is used for igniting the oil product. The supply device can supply the water layer to the inside of the storage tank system, and can also supply the oil product to the inside of the floating disc system. The limiting device is used for limiting the position of the floating disc system together with the water level of the water layer, and can effectively prevent the occurrence of the overturning accident of the disc body. The cooling device is annular, and is distributed outside the tank opening of the storage tank system, and is used for spraying the cooling water curtain to cool the tank wall. The fire extinguishing device is used for spraying the foam to the inside of the floating disc system. The monitoring device is used for monitoring the combustion process and the foam fire extinguishing process of the fire extinguishing training device, and is also used for recording the change of the flame state parameter in the process. The control device can intelligently control the processes such as water injection, oil injection, ignition and fire extinguishing of the fire extinguishing training device.

[0008] According to the adjustable liquid level height tank full surface fire extinguishing simulation device, the tank system further comprises a wiring port, a buffer device, an inspection manhole and an inspection staircase; the wiring port is located at the side wall of the tank body, and the internal circuit of the tank body is connected with the control device outside through the wiring port; the buffer devices are uniformly arranged at the bottom of the tank body, and are used for supporting the floating disc system when the water layer is emptied, so as to prevent the floating disc system from impacting and damaging the bottom of the tank body; the inspection manhole is located at the lower part of the tank body and is in the form of a circular hole, so that the inspection personnel can enter the inside of the tank body through the inspection manhole to perform inspection and maintenance work, and the inspection staircase is fixed at the edge of the upper part of the tank body, so as to facilitate the personnel to enter the top of the disc body to perform inspection and maintenance work.

[0009] Optionally, the tank body is made of metal material, and the size of the tank and the height of the tank wall are determined according to actual simulation requirements, which are not limited here.

[0010] Advantageously, surface strengthening measures should be taken at the inspection manhole to improve the fatigue strength of the surface and prevent damage caused by stress concentration of the side wall.

[0011] Advantageously, waterproof material should be filled around the wiring port to prevent leakage of the liquid in the inside of the tank body.

[0012] According to the adjustable liquid level height tank full surface fire extinguishing simulation device, the floating disc system comprises a disc body and an oil layer, the disc body is located in the inside of the tank body and floats on the water layer and can float up and down with the change of the height of the water layer, the oil layer is located in the inside of the disc body and is used for simulating the fuel surface in the fuel tank fire accident scene, and the oil inlet is located at the center of the bottom of the disc body and is connected with the disc body and used for providing oil in the disc body.

[0013] Advantageously, the diameter of the disc body should be slightly smaller than that of the tank body, so as to meet the requirement that the disc body can freely rise and fall in the inside of the tank body, which is not limited here.

[0014] Optionally, the oil in the inside of the disc body can be n-heptane commonly used in fire fighting simulation, which is not limited here.

[0015] According to the adjustable liquid level height tank full surface fire extinguishing simulation device, the ignition device comprises an igniter and a connecting line, the igniter is fixed at the side wall of the disc body and is partially immersed in the oil layer, is used for igniting the oil, and forms a flame to the open side of the tank body after the oil is ignited, so as to simulate the full liquid surface fire of the tank; one end of the connecting line is connected with the igniter, the other end passes through the inside of the tank body, and is connected with the control device outside through the wiring port.

[0016] Optionally, the igniter is preferably an electric heating wire igniter, which continues to heat the oil product after being ignited until the oil product is ignited.

[0017] Advantageously, if the single igniter cannot meet the ignition requirement, multiple igniters can be provided to ignite together.

[0018] Advantageously, the connecting line is preferably protected by a protective sleeve to protect the normal function of the connecting line.

[0019] According to the embodiment of the present application, a liquid level adjustable storage tank full surface fire extinguishing simulation device is provided, the supply device comprises a water layer supply device, the water layer supply device comprises a water storage pool, a supply pipeline, a water pump, a mass flow meter and a water supply valve, the water storage pool is used for storing the water source required in the tank body; one end of the water supply pipeline is connected with the water storage pool, and the other end is connected with the tank body; the water pump, the mass flow meter and the water supply valve are arranged on the water supply pipeline, the water pump is used for delivering the water source to the tank body, the mass flow meter is used for controlling the delivery amount of the water source, so as to determine the specific liquid level in the tank body, and the water supply valve is used for opening or closing the water supply pipeline.

[0020] Advantageously, the water layer supply device can extract the water layer back to the water storage pool after the simulation is completed, so as to realize the recycling of the water layer.

[0021] According to the embodiment of the present application, a liquid level adjustable storage tank full surface fire extinguishing simulation device is provided, the supply device further comprises an oil layer supply device, the oil layer supply device comprises an oil product storage pool, an oil supply pipeline, an oil supply hose, an oil pump, an oil product mass flow meter and an oil supply valve, the oil product storage pool is used for storing the oil product; one end of the oil supply pipeline is connected with the oil product storage pool, and the other end penetrates through the tank body and is connected with the oil supply hose; the oil supply hose is located in the tank body, one end of the oil supply hose is connected with the oil supply pipeline, and the other end is connected with the oil inlet; the oil pump, the oil product mass flow meter and the oil supply valve are arranged on the oil supply pipeline, the oil pump is used for delivering the oil product to the tank body, the mass flow meter is used for recording the delivery amount of the oil product, and the oil supply valve is used for opening or closing the oil supply pipeline.

[0022] Advantageously, the length of the oil supply hose should have a certain redundancy to meet the requirement of floating up and down of the disc body.

[0023] Advantageously, the oil layer supply device can also discharge the combustion products in the disc body after the simulation is completed, so as to realize the cleaning of the disc body.

[0024] The adjustable liquid level height storage tank full surface fire extinguishing simulation device according to the embodiment of the present application, the limiting device includes a fixing device and an extension device; the fixing device is symmetrically welded inside the tank body from high to low; the extension device includes a storage container and an extension rod, the storage container is symmetrically welded at the side wall of the disc body, and the extension rod is in the storage container and can be extended from the storage container under the action of the extension device; after the action of the extension device, the fixing device cooperates with each other to limit the vertical movement of the disc body and plays a limiting and protecting role.

[0025] Advantageously, the specific number of the fixing device depends on the size of the tank body and the actual demand of the fire extinguishing simulation, which is not specifically limited here.

[0026] Advantageously, the limiting device needs to cooperate with the water level in the storage tank system to limit the disc body, when the water layer in the tank body reaches a certain water level, the extension device acts, that is, the extension rod extends from the storage container, at this time, the extension rod is located between the upper and lower fixing devices, when the water level changes again, the disc body can continue to move up and down with the change of the water level, but the highest water level floats to the upper fixing device, and the lowest water level drops to the lower fixing device, thereby limiting the position of the disc body during the fire extinguishing simulation.

[0027] Advantageously, the limiting device can also prevent the sinking of the disc body due to the increase of the load on the upper part of the disc body during the fire extinguishing simulation.

[0028] The adjustable liquid level height storage tank full surface fire extinguishing simulation device according to the embodiment of the present application, the cooling device includes a cooling water storage pool, a cooling water pipeline, a cooling water branch pipe, a cooling nozzle, a cooling water pump and an on-off valve; the cooling water storage pool is used for storing the cooling water source; one end of the cooling water pipeline is connected with the cooling water storage pool, and the other end is connected with the cooling water branch pipe; the cooling water branch pipe is annular and is welded at the top of the tank body; the cooling nozzles are equidistantly connected on each cooling water branch pipe and are used for spraying the cooling water curtain to cool the tank body; the cooling water pump is used for conveying the cooling water source; and the on-off valve is used for controlling the opening or closing of the cooling water branch pipe.

[0029] Advantageously, the specific size and shape of the cooling water branch pipe should meet the shape requirement of the tank body, which is not specifically limited here.

[0030] Advantageously, the number of the cooling water branch pipes is four, and each cooling water branch pipe is responsible for the cooling of 1 / 4 area of the tank wall.

[0031] Advantageously, the opening and closing valve can control the water supply of each cooling water branch pipe, so that the cooling water release of each cooling water branch pipe is independent of each other, the cooling water release of all cooling water branch pipes during fire extinguishing exercise can be simulated, and the mechanical behavior of the tank wall under uniform cooling can be simulated; the opening and closing valve can also make some cooling water branch pipes not release cooling water during fire extinguishing exercise, and the mechanical behavior of the tank wall under non-uniform cooling can be simulated.

[0032] According to the embodiment of the application, the fire extinguishing device for full-surface fire of a liquid level adjustable storage tank comprises a flange interface and a mobile foam fire extinguishing device, the flange interface is used for connecting an external foam liquid preparation device to provide foam for the mobile foam fire extinguishing device, and the mobile foam fire extinguishing device is used for spraying foam into the tank body to simulate the fire extinguishing process of a storage tank fire.

[0033] Advantageously, the number of the mobile foam fire extinguishing devices depends on the specific fire extinguishing exercise scale, which is not specifically limited here.

[0034] Advantageously, the mobile foam fire extinguishing device can spray foam into the tank body from different positions and at different angles.

[0035] According to the embodiment of the application, the monitoring device comprises a camera and a temperature measuring device, the camera is used for shooting the burning and fire extinguishing conditions of the simulation exercise device, and the temperature measuring device comprises a fixed rod, a thermocouple and a thermocouple circuit, the fixed rod is welded to the edge of the bottom of the tank body and located between the tank body and the disc body to fix the thermocouple, the thermocouple can move on the fixed rod to measure the flame temperature at different positions, and the thermocouple circuit connects the thermocouple and the control device through the wiring port.

[0036] Optionally, the number and arrangement position of the thermocouples depend on the actual needs of the fire extinguishing exercise, which are not specifically limited here.

[0037] Advantageously, the thermocouple circuit is preferably protected by a protective sleeve to protect the normal function of the thermocouple circuit.

[0038] According to the embodiment of the application, the control device can receive the data of the ignition device, the supply device, the limiting device, the cooling device, the fire extinguishing device and the monitoring device in real time, and intelligently and accurately control the ignition, water layer and fuel supply, disc body limiting, tank wall cooling, fire extinguishing and other processes during fire extinguishing exercise.

[0039] Advantageously, the control device can control the ignition process of the ignition device; the control device can also control the supply and discharge of the water layer; the control device can also control the water amount of the water layer inside the tank body in real time; the control device can also control the supply of oil products and the discharge of combustion products inside the disc body; the control device can also control the extinguishing position and angle of the extinguishing device; the control device can also control the opening and closing of the cooling device; and the control device can also record the monitoring data of the monitoring device.

[0040] 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

[0041] The present application and the above and / or additional aspects and advantages will become apparent and more readily appreciated from the following description, taken in conjunction with the references to the following drawings, of which:

[0042] Figure 1 The schematic diagram of the overall structure of the adjustable liquid level tank full-surface fire extinguishing training device of the embodiment of the present application.

[0043] Figure 2 The partial top view of the adjustable liquid level tank full-surface fire extinguishing training device of the embodiment of the present application.

[0044] Figure 3 The lower limit position schematic diagram of the disc body of the adjustable liquid level tank full-surface fire extinguishing training device of the embodiment of the present application.

[0045] Figure 4 The upper limit position schematic diagram of the disc body of the adjustable liquid level tank full-surface fire extinguishing training device of the embodiment of the present application.

[0046] Reference Signs:

[0047] the adjustable liquid level tank full-surface fire extinguishing training device 1000,

[0048] the tank system 100, the tank body 110, the water layer 120, the wiring port 130, the buffer device 140, the maintenance manhole 150, the maintenance staircase 160,

[0049] the floating disc system 200, the disc body 210, the oil layer 220, the oil supply port 230,

[0050] the ignition device 300, the igniter 310, the connection line 320,

[0051] the supply device 400, the water layer supply device 410, the water storage tank 411, the water supply pipeline 412, the water pump 413, the mass flow meter 414, the water supply valve 415,

[0052] oil supply device 420, oil storage tank 421, oil supply pipeline 422, oil supply hose 423, oil pump 424, oil mass flow meter 425, oil supply valve 426,

[0053] limiting device 500, fixing device 510, first fixing device 511, second fixing device 512, third fixing device 513, telescopic device 520, storage container 521, telescopic rod 522,

[0054] cooling device 600, cooling water storage tank 610, cooling water pipeline 620, cooling water branch pipeline 630, cooling nozzle 640, cooling water pump 650, on-off valve 660,

[0055] fire extinguishing device 700, flange interface 710, mobile foam fire extinguishing device 720,

[0056] monitoring device 800, camera device 810, temperature measuring device 820, fixing rod 821, thermocouple 822, thermocouple circuit 823,

[0057] control device 900. DETAILED DESCRIPTION

[0058] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0059] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on 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 of the present application.

[0060] The adjustable liquid level storage tank full-surface fire extinguishing training device of the embodiments of the present application is described below with reference to the accompanying drawings.

[0061] The adjustable liquid level storage tank full-surface fire extinguishing training device 1000 according to the embodiments of the present application, as shown in Figure 1 includes a storage tank system 100, a floating plate system 200, a supply device 300, an ignition device 400, a limiting device 500, a cooling device 600, a fire extinguishing device 700, a monitoring device 800, and a control device 900.

[0062] Among them, as shown inFigure 1 As shown, the storage tank system 100 is composed of a tank body 110, a water layer 120, a wiring port 130, a buffer device 140, an inspection manhole 150, and an inspection staircase 160. The tank body 110 is open at the top and carries the water layer 120 inside. The height of the water layer 120 can be adjusted to achieve the storage tank fire combustion at different liquid levels. The wiring port 130 is located at the lower part of the side wall of the tank body 110, and the internal circuit of the tank body 110 is connected with the external control device 900 through the wiring port 130. The buffer device 140 is uniformly arranged at the bottom of the tank body 110, which is used to support the floating disc system 200 after the water layer 120 is emptied, preventing the floating disc system from impacting and damaging the bottom of the tank body 110. The inspection manhole 150 is located at the lower part of the tank body 110 and is in the form of a circular hole. The inspection personnel can enter the tank body 110 through the inspection manhole 150 to perform maintenance work. The inspection staircase 160 is fixed at the edge of the upper part of the tank body 110, which is convenient for personnel to enter the floating disc system 200 to perform maintenance work.

[0063] Optionally, the tank body 110 is made of metal material. The size and the height of the tank wall of the tank body 110 are determined according to the actual simulation training requirements, which are not specifically limited here.

[0064] Advantageously, surface strengthening measures should be taken at the inspection manhole 130 to improve the fatigue strength of the surface and prevent damage caused by stress concentration of the side wall.

[0065] Advantageously, waterproof material should be filled near the wiring port 130 to prevent leakage of the liquid inside the tank body 110.

[0066] As shown in Figure 1 The floating disc system 200 is composed of a disc body 210 and an oil inlet 230. The disc body 210 is located inside the tank body 110 and floats on the water layer 120. The disc body 210 can float up and down with the change of the height of the water layer 120. The oil layer 220 is located inside the disc body 210 and is used to simulate the fuel surface of the storage tank fire accident scene. The oil inlet 230 is located at the bottom of the disc body 210 and is used to supply oil to the inside of the disc body 210.

[0067] Advantageously, the size of the disc body 210 should be slightly smaller than the tank body 110 to meet the free lifting of the disc body 210 inside the tank body 110, which is not specifically limited here.

[0068] Optionally, the oil in the oil layer 220 can be selected from commonly used fire fighting training fuels such as n-heptane, which is not specifically limited here.

[0069] Continuing to refer to Figure 1As shown, the ignition device 300 comprises an igniter 310 and a connecting line 320, the igniter 310 is fixed at the side wall of the disc body 210 and partially immersed in the oil layer 220 for igniting the oil layer 220, the oil layer 220 is ignited to form a flame to the open side of the tank body 110 to simulate the full surface fire of the tank, one end of the connecting line 320 is connected with the igniter 310 and the other end passes through the inside of the tank body 110 and is connected with the external control device 900 through the wire outlet 130.

[0070] Optionally, the igniter 310 can be an electric heating wire igniter, which continuously heats the oil product until the oil product is ignited after being started.

[0071] Advantageously, if a single igniter 310 cannot meet the ignition requirements of the oil product, multiple igniters can be arranged in the disc body 210 to work together to ignite.

[0072] Advantageously, the connecting line 320 is preferably protected by a protective sleeve to protect the normal function of the connecting line 320.

[0073] Continuing to refer to Figure 1 As shown, the supply device 400 comprises a water layer supply device 410, which is composed of a water storage tank 411, a supply pipeline 412, a water pump 413, a mass flow meter 414 and a water supply valve 415; the water storage tank 411 is used to store the required water in the inside of the tank body 110; one end of the supply pipeline 412 is connected with the water storage tank 411 and the other end is connected with the tank body 110; the water pump 413, the mass flow meter 414 and the water supply valve 415 are all installed on the water supply pipeline 412, the water pump 413 is used to deliver the water source to the inside of the tank body 110, the mass flow meter 414 is used to control the delivery amount of the water source to determine the specific liquid level height in the inside of the tank body 110, and the water supply valve 415 is used to open or close the water supply pipeline 412.

[0074] Advantageously, the water layer supply device 410 can re-pump the water in the inside of the tank body 110 to the water storage tank 411 after the exercise is completed to realize the recycling of the water layer 120.

[0075] Continuing to refer to Figure 1As shown, the supply device 400 further comprises an oil layer supply device 420, which is composed of an oil storage pool 421, an oil supply pipeline 422, an oil supply hose 423, an oil pump 424, an oil mass flow meter 425, and an oil supply valve 426. The oil layer supply device 420 is used to store the oil required in the inside of the disc body 210. One end of the oil supply pipeline 422 is connected with the oil storage pool 421, and the other end penetrates the tank body 110 and is connected with the oil supply hose 423. The oil supply hose 423 is located in the inside of the tank body 110, one end of which is connected with the oil supply pipeline 422, and the other end is connected with the oil inlet 230. The oil pump 424, the oil mass flow meter 425, and the oil supply valve 426 are all installed on the oil supply pipeline 422. The oil pump 424 is used to deliver the oil to the inside of the disc body 210, the oil mass flow meter 425 is used to control the delivery amount of the oil, and the oil supply valve 426 is used to open or close the oil supply pipeline 422.

[0076] Advantageously, the length of the oil supply hose 423 should have a certain redundancy to meet the requirement of the up-and-down floating of the disc body 210.

[0077] Advantageously, the oil layer supply device 420 can discharge the waste liquid in the inside of the disc body 210 after the drill, so as to realize the cleaning of the disc body 210 after the drill.

[0078] In combination with Figure 1 and Figure 2 As shown, the limiting device 500 cooperates with the water level in the inside of the storage tank system 100 to jointly limit the vertical position of the disc body 210. The limiting device 500 is composed of a fixing device 510 and an extension device 520. The fixing device 510 is symmetrically welded in the inside of the tank body 110 from high to low. The extension device 520 comprises a storage container 521 and an extension rod 522. The storage container 521 is symmetrically welded at the side wall of the disc body 210, and the extension rod 522 is in the storage container 521 and can be extended out of the storage container 521 under the action of the extension device 520. The fixing device 510 and the extension device 520 cooperate with each other to jointly limit the vertical movement of the disc body 210, so as to play a limiting role and a protection role.

[0079] In some specific examples, as Figure 3 and Figure 4As shown, the first fixing device 511, the second fixing device 512, and the third fixing device 513 are welded from high to low inside the tank body; when the water level of the water layer 120 rises to a certain height, the telescopic device 520 starts to work, the telescopic rod 522 extends from the storage container 521, and the telescopic rod 522 cooperates with the second fixing device 512 on both sides of the tank body 110 to jointly limit the position of the disc body 210, thereby limiting the movable position of the disc body 210 above the second fixing device 512; if the water level of the water layer 120 continues to rise until reaching the first fixing device 511, the first fixing device 511 cooperates with the telescopic device 520 to jointly limit the position of the disc body 210, so that the disc body 210 does not continue to rise with the rising of the water level of the water layer 120; therefore, the disc body 210 is limited by the limiting device 500 and is at most raised with the water layer 120 to the first fixing device 511, and is at most lowered with the water layer 120 to the second fixing device 512.

[0080] Optionally, the specific number of the fixing device 510 depends on the size of the tank body 110 and the specific requirement of the liquid level height.

[0081] Advantageously, the limiting device 500 can also prevent the sinking of the disc body 210 due to the increase of the load on the upper part of the disc body 210.

[0082] In combination with Figure 1 and Figure 2 As shown, the cooling device 600 includes a cooling water storage pool 610, a cooling water pipeline 620, a cooling water branch pipeline 630, a cooling spray head 640, a cooling water pump 650, and an on-off valve 660; the cooling water storage pool 610 is used for storing a cooling water source; one end of the cooling water pipeline 620 is connected with the cooling water storage pool 610, and the other end is connected with the cooling water branch pipeline 630; the cooling water branch pipeline 630 is annularly welded on the top of the tank body 110; the cooling spray head 640 is connected on the cooling water branch pipeline 630 at equal intervals and is used for spraying a cooling water curtain to cool the tank body 110; the cooling water pump 650 is used for conveying the cooling water source; and the on-off valve 660 is used for controlling the opening or closing of the cooling water branch pipeline 630.

[0083] Advantageously, as shown in Figure 2 each cooling water branch pipeline 630 is responsible for cooling the tank wall with a size of 1 / 4 of the outer sidewall of the tank body 110, and whether each cooling water branch pipeline 630 sprays cooling water can be controlled through the on-off valve 660, so as to study the change of the mechanical properties of the tank body 110 under the uniform or non-uniform cooling water load in the process of fire fighting drill.

[0084] Continuing to refer to Figure 1As shown, the fire extinguishing device 700 comprises a flange interface 710 and a mobile foam fire extinguishing device 720; the flange interface 710 is used to externally connect a foam preparation device to provide foam for the mobile foam fire extinguishing device 720; the mobile foam fire extinguishing device 720 is used to spray foam into the inside of the tank body 110 during the fire fighting drill to simulate the fire extinguishing process of the storage tank fire.

[0085] Advantageously, the mobile foam fire extinguishing device 720 can be selected as a mobile foam cannon or the like, which can simulate spraying foam into the inside of the tank body 110 from different positions and at different angles, which is not specifically limited here.

[0086] It can be understood that, by means of the foregoing device, the fire extinguishing process of the storage tank at different liquid levels can be fully understood and analyzed, which can be used as a simulation instrument for actual fire fighting drills to improve the understanding of the participants on the combustion and fire extinguishing process of the large storage tank.

[0087] In some embodiments of the present application, as shown in Figure 1 The monitoring device 800 comprises a camera 810, which can capture the combustion condition and fire extinguishing process of the tank body 110 by adjusting the height of the camera 810, record the flame shape and height and other state information, which is beneficial for subsequent analysis.

[0088] Advantageously, a plurality of cameras 810 can be arranged according to specific drill requirements; for example, the camera 810 can be fixed by a support to adjust the height and angle to capture the internal combustion condition and foam fire extinguishing condition from the top opening of the tank body 110, which is not specifically limited here.

[0089] In some embodiments of the present application, the monitoring device 800 further comprises a temperature measuring device 820, which comprises a fixing rod 821, a thermocouple 822 and a thermocouple circuit 823; the fixing rod 821 is located between the tank body 110 and the disc body 210 to fix the thermocouple 822; the thermocouple 822 is used to measure the flame temperature inside the tank body 110, and the thermocouple circuit 823 is connected with the outside through the wiring port 150.

[0090] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0091] Alternatively, the number of thermocouples 822 depends on the size of the tank body 110 and the requirements of the simulation drill, and at least a plurality of thermocouples 822 are vertically arranged by the fixing rod 821 to determine the temperature at each place in the vertical direction of the tank body 110.

[0092] Alternatively, a plurality of thermocouples 822 can be arranged inside the oil layer 220, so that the temperature monitoring device 820 can accurately monitor the temperature at different positions inside the oil layer 220.

[0093] In some embodiments of the present application, as shown in Figure 1 The control device 900 is configured to receive real-time data of the ignition device 300, the supply device 400, the limiting device 500, the cooling device 600, the extinguishing device 700 and the monitoring device 800, and intelligently and accurately control the water layer and fuel supply, the disc limiting, the tank wall cooling, the fire extinguishing and other processes in the fire extinguishing simulation.

[0094] Advantageously, the control device 900 can control the ignition device 300 to ignite; the control device 900 can control the amount of water in the water layer 120 inside the tank 110 in real time, so as to continuously change the liquid level height inside the tank 110; the control device 900 can also control the supply and discharge of the oil in the disc 210; the control device 900 can also control the extinguishing position and angle of the extinguishing device 700; the control device 900 can also control the opening and closing of the cooling device 600; and the control device can also record the monitoring data of the monitoring device 800.

[0095] In a specific example, during the fire extinguishing simulation, the control device 900 controls the supply device 400 to supply the water layer 120 into the tank 110, so that the disc 210 floats to a predetermined liquid level height; the control device 900 controls the limiting device 500 to limit the position of the disc 210; the control device 900 controls the supply device 400 to supply the oil layer 220 into the disc 210; the control device 900 controls the ignition device 300 to ignite the oil layer 220; the control device 900 controls the monitoring device 800 to start recording the simulation data; the control device 900 controls the extinguishing device 700 to extinguish the fire inside the disc 210; and the control device 900 controls the supply device 400 to discharge the water layer 120 in the tank 110 and the combustion products in the disc 210.

[0096] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms “mounting”, “connecting” should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] Figure 1 Four thermocouples 822 are shown for illustrative purposes, but those skilled in the art will understand that the scheme can be applied to other numbers of thermocouples 822 after reading the above technical solutions, which also falls within the protection scope of the present application.

[0098] The principle of burning the oil layer 260 in the adjustable liquid level tank full-surface fire extinguishing simulation device 1000 according to the embodiment of the present application is known to those skilled in the art, and thus will not be described in detail herein.

[0099] In the description of the present specification, the description referring to the terms "embodiment", "example", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0100] The above-described specific embodiments, the purposes, technical solutions, and beneficial effects of the present application are further described in detail. It should be understood that the above-described specific embodiments are merely specific embodiments of the present application and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fire extinguishing drill device for the entire surface of a storage tank with adjustable liquid level, characterized in that, The fire extinguishing drill device consists of a storage tank system, a floating roof system, a supply device, an ignition device, a limit device, a cooling device, a fire extinguishing device, a monitoring device, and a control device. The storage tank system is an open-top tank with an internal water layer. The water layer height is adjustable to allow for combustion at different liquid levels. The system also includes wiring ports, buffer devices, manholes, and maintenance stairs. The wiring ports are located on the side wall of the tank, through which internal wiring connects to the outside. The buffer devices are evenly distributed at the bottom of the tank to support the floating roof system when the water layer is emptied, preventing the floating roof system from impacting and damaging the bottom of the tank. The manholes are located inside the tank opening and are circular, allowing maintenance personnel to enter the tank for inspection and maintenance. The maintenance stairs are fixed to the upper edge of the tank, facilitating access to the top of the floating roof system for inspection and maintenance. The floating roof system includes a roof body, an oil layer, and an oil inlet. The roof body is located inside the tank and floats on the water layer. The roof body can float up and down with the change of the water layer height. The oil layer is located inside the roof body and is used to simulate the fuel surface in a tank fire accident scenario. The oil inlet is located at the center of the bottom of the roof body and is used to supply oil to the interior of the roof body. The ignition device includes an igniter and a connecting line. The igniter is fixed to the side wall of the plate and partially submerged in the oil layer. It is used to ignite the fuel. After the fuel is ignited, a flame is formed towards the open side of the tank to simulate a full-level fire in a large storage tank. One end of the connecting line is connected to the igniter, and the other end is connected to the control device through the wiring port. The supply device includes a water layer supply device and an oil layer supply device. The water layer supply device can supply water to the inside of the tank; the oil layer supply device can supply oil to the inside of the pan to replenish the oil layer. The limiting device, together with the water level inside the storage tank system, restricts the position of the pan body, which can effectively prevent the pan body from overturning. It includes a fixing device and a telescopic device; the fixing device is symmetrically welded inside the tank body from high to low. The telescopic device includes a storage container and a telescopic rod. The storage container is symmetrically welded to the side wall of the disc body, and the telescopic rod is inside the storage container and can extend out of the storage container when the telescopic device is activated. When the water level reaches a predetermined height, the telescopic device is activated. At this time, the telescopic rod is located between the upper and lower fixed devices, so that the disc body floats with the water level up to the upper fixed device and descends with the water level down to the lower fixed device, thus limiting the position of the disc body during fire extinguishing drills. The limiting device can also prevent the disc body from sinking due to the increased load on the upper part of the disc body during the fire extinguishing process. The cooling device is ring-shaped and fixed to the outside of the tank opening of the storage tank system. It is used to spray cooling water onto the tank wall of the storage tank system to provide cooling and protection. The fire extinguishing device is used to spray foam into the pan to cool the surface of the oil, simulating the fire extinguishing process of a storage tank fire. The monitoring device is used to monitor the combustion process and foam extinguishing process of the fire extinguishing drill device. The monitoring device is also used to record the changes in flame state parameters during the combustion process and the extinguishing process. The control device is used to receive real-time data from the ignition device, the supply device, the limiting device, the cooling device, the fire extinguishing device, and the monitoring device, and to perform intelligent and precise control on the processes of ignition, supply of water and oil layers, plate limiting, tank wall cooling, and fire extinguishing during fire extinguishing drills.

2. The adjustable liquid level tank full-surface fire extinguishing drill device according to claim 1, characterized in that, The water layer supply device includes a water storage tank, a water supply pipeline, a water pump, a mass flow meter, and a water supply valve. The water storage tank is used to store water. One end of the water supply pipeline is connected to the water storage tank, and the other end is connected to the tank body. The water pump, the mass flow meter, and the water supply valve are all installed on the water supply pipeline. The water pump is used to deliver water to the inside of the tank body, the mass flow meter is used to control the water delivery rate to determine the specific liquid level inside the tank body, and the water supply valve is used to open or close the water supply pipeline. The oil layer supply device includes an oil storage tank, an oil supply pipeline, an oil supply hose, an oil pump, an oil mass flow meter, and an oil supply valve. The oil storage tank is used to store oil. One end of the oil supply pipeline is connected to the oil storage tank, and the other end passes through the tank body and connects to the oil supply hose. The oil supply hose is located inside the tank body, with one end connected to the oil supply pipeline and the other end connected to the oil inlet. The length of the oil supply hose has a certain redundancy to meet the needs of the pan body's vertical floating. The oil pump, the oil mass flow meter, and the oil supply valve are all installed on the oil supply pipeline. The oil pump is used to transport oil from the oil storage tank to the inside of the pan body. The oil mass flow meter is used to record the amount of oil transported. The oil supply valve is used to open or close the oil supply pipeline.

3. The adjustable liquid level tank full-surface fire extinguishing drill device according to claim 2, characterized in that, The water supply device can also return the water layer to the reservoir after the exercise to achieve the recycling of the water layer; the oil supply device can also discharge the combustion products after the exercise to clean the disc.

4. The adjustable liquid level tank full-surface fire extinguishing drill device according to claim 1, characterized in that, The cooling device includes a cooling water storage tank, cooling water pipelines, cooling water branch pipes, cooling nozzles, a cooling water pump, and an on / off valve. The cooling water storage tank is used to store cooling water. One end of the cooling water pipeline is connected to the cooling water storage tank, and the other end is connected to the cooling water branch pipes. The cooling water branch pipes are welded in a ring shape to the top of the tank. The cooling nozzles are equidistantly connected to each cooling water branch pipe for spraying cooling water curtains to cool the tank. The cooling water pump is used to deliver cooling water. The on / off valve is used to control the opening or closing of the cooling water branch pipes.

5. The adjustable liquid level tank full-surface fire extinguishing drill device according to claim 1, characterized in that, The fire extinguishing device includes a flange interface and a mobile foam fire extinguishing device. The flange interface is used to connect to an external foam liquid preparation device, thereby providing foam to the mobile foam fire extinguishing device. The mobile foam fire extinguishing device can spray foam into the storage tank system from different positions and angles to simulate the fire extinguishing process of a storage tank fire.

6. The adjustable liquid level tank full-surface fire extinguishing drill device according to claim 1, characterized in that, The monitoring device includes a camera and a temperature measuring device. The camera is used to capture the combustion and extinguishing status of the training device. The temperature measuring device includes a fixed rod, a thermocouple, and thermocouple wiring. The fixed rod is welded to the bottom edge of the tank and located between the tank and the plate, and is used to fix the thermocouple. The thermocouple can move on the fixed rod to measure the flame temperature at different locations. The thermocouple wiring connects the thermocouple to the control device through the wiring port.

7. The adjustable liquid level tank full-surface fire extinguishing drill device according to claim 1, characterized in that, The control device can control the ignition device to ignite; the control device can also control the water volume inside the tank in real time to achieve continuous change of the liquid level inside the tank; the control device can also control the supply of oil inside the pan and the discharge of combustion products; the control device can also control the extinguishing position and angle of the fire extinguishing device; the control device can also control the opening and closing of the cooling device; the control device can also record the monitoring data of the monitoring device.

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