A flowing fire simulation generating device and a fire pan thereof

Abstract

The present application relates to a kind of flowing fire simulation generating device and its fire basin.The flowing fire simulation generating device includes oil tank, oil pump, oil pipeline and fire basin, the fire basin includes basin body, at least one horizontal direction extending flow port is opened in the side plate of the basin body, the outer side of basin body side plate is provided with a guide vane structure at the position corresponding to flow port, oil inlet hole is also opened in the basin body, the height of the oil inlet hole is lower than the height of the flow port, so that oil-water separation interface is formed between oil inlet hole and flow port by injecting water into the basin body when in use, it is guaranteed that the oil liquid entering from oil inlet hole floats to water surface through water layer, greatly improve the safety of use.

Description

Technical Field

[0001] This invention relates to the field of fire simulation device technology, and in particular to a flowing fire simulation device and its fire basin. Background Technology

[0002] With the increasing number of carrier-based aircraft on large ships, the expansion of training subjects, and the intensification of flight operations, the probability of fuel tank accidents during takeoff and landing operations on the deck has increased. When an aircraft rolls over or other accidents occur, the large amount of fuel carried in the aircraft's fuel tank seriously endangers the safety of the entire ship. Historically, there have been numerous fire accidents caused by fuel tank ruptures during carrier-based aircraft takeoffs and landings. Accidents involving carrier-based aircraft under different operational conditions leading to fuel tank ruptures result in varying flow rates, volumes, and spread behaviors. Therefore, rescue drills are often necessary to better facilitate efficient rescue operations in the event of a fire.

[0003] In the prior art, Chinese utility model patent CN220398912U, with an authorization announcement date of January 26, 2024, discloses a simulation experimental device for flowing fire combustion in a traffic tunnel. This device includes a fire source model placed in the middle of the tunnel protection zone, a fire extinguishing system located at the top of the tunnel protection zone, and an information acquisition system for collecting data. The fire source model is a steel frame structure, including a rectangular oil pan for holding fuel. Both long sides of the oil pan have slots for fuel to flow out, and each slot is connected to a flow plate that allows fuel to flow downwards. The lower ends of each flow plate are fixedly connected to a flow channel of the same length as the oil pan. A fuel storage tank for storing fuel and an oil pump that injects fuel from the fuel storage tank into the oil pan at a stable mass flow rate are located away from the fire source model. Although this device can simulate the combustion of flowing fire, the fuel on the fuel pan during use could potentially ignite the fuel in the fuel pipeline, posing a significant safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a flowing fire simulation device and its fire basin, which solves the problem that in the existing flowing fire combustion simulation experimental device, the fuel on the fuel pan at the point of use may ignite the fuel in the fuel pipeline, posing a significant safety hazard.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] A fire basin is provided as a fire basin simulating a flowing fire. The fire basin includes a basin body, and at least one horizontally extending flow outlet is provided on the side plate of the basin body. A guide tongue structure is provided on the outer side of the side plate of the basin body at the position corresponding to the flow outlet. An oil inlet is also provided on the basin body. The height of the oil inlet is lower than the height of the flow outlet, so that when water is injected into the basin during use, an oil-water separation interface is formed between the oil inlet and the flow outlet, ensuring that the oil entering from the oil inlet floats to the water surface after passing through the water layer.

[0007] Furthermore, the outline of the fire basin is rectangular, and one of the four side plates of the basin body is lower than the other three side plates to form a notch structure. The notch structure constitutes the flow port, and the oil inlet is located on the side plate opposite to the flow port.

[0008] Furthermore, the guide tongue structure includes an inclined metal plate with one side connected to the top of the lower side plate and the other side for contacting the ground, and a support plate in the space enclosed by the inclined metal plate and the lower side plate, the support plate having two or more supports and ventilation and heat dissipation holes.

[0009] Furthermore, the interior of the brazier is also provided with steps that protrude from the bottom of the brazier and fill the interior space to reduce water consumption.

[0010] Furthermore, the step is located in the middle of the basin and forms a connected groove with each side plate of the basin.

[0011] Furthermore, the height of the step is lower than the height of the flow outlet, and the height of the oil inlet is lower than the height of the step.

[0012] The beneficial effects of adopting the above technical solutions are as follows:

[0013] This invention innovatively proposes a fire basin as a flowing fire simulation device. In use, water is injected into the basin to create an oil-water separation interface between the oil inlet and the flow outlet. This ensures that the oil entering from the inlet floats to the surface through the water layer, igniting the fuel on the water surface. The water in the basin acts as a flame-retardant layer, preventing the flame from igniting the fuel in the oil pipeline. Furthermore, the water injection prevents direct contact between the fuel and the basin, preventing significant deformation due to high temperatures and improving safety during use.

[0014] A flow fire simulation device includes an oil tank, an oil pump, an oil pipeline, and a fire basin. The fire basin comprises a basin body, with at least one horizontally extending flow outlet on the side plate of the basin body. A guide tongue structure is provided on the outer side of the side plate corresponding to the flow outlet. The basin body also has an oil inlet hole, the height of which is lower than the height of the flow outlet. This allows water to be injected into the basin during use to form an oil-water separation interface between the oil inlet hole and the flow outlet, ensuring that the oil entering from the oil inlet hole floats to the surface through the water layer.

[0015] Furthermore, the outline of the fire basin is rectangular, and one of the four side plates of the basin body is lower than the other three side plates to form a notch structure. The notch structure constitutes the flow port, and the oil inlet is located on the side plate opposite to the flow port.

[0016] Furthermore, the guide tongue structure includes an inclined metal plate with one side connected to the top of the lower side plate and the other side for contacting the ground, and a support plate in the space enclosed by the inclined metal plate and the lower side plate, the support plate having two or more supports and ventilation and heat dissipation holes.

[0017] Furthermore, the interior of the brazier is also provided with steps that protrude from the bottom of the brazier and fill the interior space to reduce water consumption.

[0018] Furthermore, the step is located in the middle of the basin and forms a connected groove with each side plate of the basin.

[0019] Furthermore, the height of the step is lower than the height of the flow outlet, and the height of the oil inlet is lower than the height of the step.

[0020] The beneficial effects of adopting the above technical solutions are as follows:

[0021] This invention provides an improved flowing fire simulation device. In use, water is injected into the fire basin to create an oil-water separation interface between the oil inlet and the flow outlet. This ensures that the oil entering from the inlet floats to the surface via a water layer, igniting the fuel on the water surface. The water in the basin acts as a flame-retardant layer, preventing the flame from igniting the fuel in the oil pipeline. Furthermore, the water injection prevents direct contact between the fuel and the fire basin, avoiding significant deformation due to high temperatures and improving safety. Attached Figure Description

[0022] Figure 1 A side view of a fire basin in an embodiment of a flowing fire simulation device;

[0023] Figure 2 A top view of a fire basin in an embodiment of a flowing fire simulation device;

[0024] Figure 3 A schematic diagram of the structure of a fire basin in an embodiment of a flowing fire simulation device;

[0025] Figure 4 This is a schematic diagram of a flowing fire simulation device in one embodiment;

[0026] Figure 5 This is a schematic diagram of a fuel speed control system.

[0027] In the diagram: 1. Oil inlet; 2. Step; 3. Guide tongue structure; 4. Basin; 5. Oil tank; 6. Oil pump; 7. Solenoid valve; 8. Groove. Detailed Implementation

[0028] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0029] Inventive concept

[0030] This invention provides a fire basin that, by setting a height difference between the outflow port and the oil inlet, utilizes a water layer pre-filled in the fire basin during use, with the water surface positioned between the oil inlet and the outflow port. This allows fuel to enter the fire basin from the oil inlet, float to the surface via the water layer, and then flow out from the outflow port. In this way, the water layer isolates the flames of the burning fuel on the water surface from the oil inlet, thereby preventing the flames from igniting the oil inlet and providing a backfire prevention function, ensuring the safety of the entire device.

[0031] Based on the above concept, the present invention provides various embodiments of flowing fire simulation devices for illustration.

[0032] In a more basic embodiment, such as Figure 4 As shown, the flowing fire simulation device includes an oil tank 5, an oil pump 6, an oil pipeline, a solenoid valve 7, and a fire basin. When in use, the oil pump 6 is activated, which delivers fuel from the oil tank 5 to the fire basin via the oil pipeline and solenoid valve 7 at the required speed and flow rate. Specifically, the fire basin includes a basin body 4. One or more horizontally extending flow outlets are located on the side plate of the basin body 4; the specific number of flow outlets depends on the needs. A guide tongue structure 3 is provided on the outer side of the basin body side plate at the position corresponding to the flow outlet. The guide tongue structure 3 guides the ignited fuel flowing from the flow outlet to the ground, allowing it to flow and spread. An oil inlet hole 1 is also provided on the basin body 4, with its height lower than the height of the flow outlet. During use, water is injected into the basin to form an oil-water separation interface between the oil inlet hole 1 and the flow outlet, ensuring that the oil entering from the oil inlet hole 1 floats to the water surface. After ignition, as fuel is continuously injected, it overflows from the flow outlet.

[0033] Based on the above embodiments, the brazier can be circular, and the spout can be an arc-shaped opening formed on the wall of the circular brazier, or the outline of the brazier can be polygonal, with guide tongue structures provided on the required sides. In a preferred embodiment, such as... Figure 1-3 As shown, the outline of the fire basin is rectangular. One of the four side plates of the basin body 4 is lower than the other three side plates, forming a notch structure. The notch structure constitutes the flow port. The oil inlet 1 is located on the side plate opposite to the flow port. This structure is simple and the distance between the flow port and the oil inlet 1 is far, which can further improve safety.

[0034] Based on the above embodiments, the tilt angle of the inclined metal plate of the guide tongue structure 3 can be adjusted according to the simulated environment as needed. In a preferred embodiment, the guide tongue structure 3 includes an inclined metal plate with one side connected to the top of the lower side plate and the other side for contact with the ground, and a support plate in the space enclosed by the inclined metal plate and the lower side plate. The support plate has two or more supports and ventilation and heat dissipation holes. The heat generated by fuel combustion can be discharged from the cavity in the guide tongue structure 3 through the ventilation and heat dissipation holes to prevent the inclined metal plate from deforming due to excessive temperature.

[0035] Based on the above embodiments, in one embodiment, the basin 4 is a regular basin with an inner cavity structure that conforms to the shape of the basin 4. In a preferred embodiment, to reduce water consumption and prevent excessive water from lowering the fuel temperature, the basin 4 of the fire pit is further provided with a step 2 protruding from the bottom of the basin 4, filling the internal space of the basin 4 to reduce water consumption. The shape of the step 2 can be arbitrarily set, as long as it can fill the inner cavity of the basin 4 and allow the oil inlet hole 1 to pass through. In a preferred embodiment, the step 2 is located in the middle of the basin 4 and forms a groove 8 connected to each side plate of the basin 4, which allows for a larger amount of water on each side wall of the basin 4, so as to better cool the side walls of the basin 4.

[0036] Based on the above implementation, in one embodiment, the height of the protruding step 2 inside the basin 4 can be higher than or flush with the side plate of the basin 4. In a preferred embodiment, the height of the step 2 is higher than the oil inlet 1 and lower than the flow outlet.

[0037] The flowing fire simulation device of the present invention also includes a fuel speed control system, such as Figure 5 As shown, the fuel control system consists of a comparator, a PID controller, and a solenoid valve. The comparator in the fuel control system is used to compare the difference between the actual velocity value of the fuel flow at the outlet end and the expected velocity value input at the inlet end. The PID controller controls the opening of the solenoid valve to achieve accurate control of the actual fuel flow velocity.

[0038] When using the flowing fire simulation device of the present invention, water is added to the fire basin until it overflows the protruding step 2 inside the fire basin. The water level is between the oil inlet 1 and the flow outlet. Fuel in the fuel tank 5 is pumped out by the fuel pump 6 into the fuel pipeline, which is connected in series with the solenoid valve 7. Fuel enters the fire basin through the fuel inlet 1. After entering the fire basin, the fuel first enters the water. Oil and water are immiscible and separate due to their density difference. The density of fuel is less than that of water, so it floats to the surface of the water, forming a layered distribution of water at the bottom and fuel at the top in the fire basin. As the fuel pump 6 continues to inject fuel into the fire basin, the fuel level slowly rises until it reaches the lower side of the fire basin. If fuel injection continues, the fuel overflows from the lower side along the guide tongue structure 3, forming a flowing spread.

[0039] After the fuel in the fire basin is ignited by a remote igniter, an oil pool fire is formed. Based on the mass loss rate during the combustion of the oil pool fire and the mass of fuel that needs to flow out, the amount of fuel that needs to be injected per unit time is determined. By controlling the opening of the solenoid valve, different masses of fuel are injected into the oil basin, thus effectively reproducing the flowing fire caused by fuel tank leakage and its outward spread.

[0040] Adding water to the fire pit ensures that the fuel and fuel delivery pipeline are separated by the water layer, preventing the fuel from igniting the fuel in the pipeline during use and thus improving safety. The groove 8 between the step 2 and the side plate inside the fire pit is filled with water, which also improves the heat dissipation performance of the fire pit and prevents the fire pit from deforming due to high temperature.

[0041] The fire basin embodiment of the present invention has the same structure as the fire basin structure in the flowing fire simulation device embodiment described above, and will not be repeated here.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A fire basin for simulating a flowing fire, characterized in that, The brazier includes a basin body. At least one horizontally extending outlet is provided on the side plate of the basin body. A guide tongue structure is provided on the outer side of the side plate of the basin body at the position corresponding to the outlet. An oil inlet is also provided on the basin body. The height of the oil inlet is lower than the height of the outlet, so that when water is injected into the basin during use, an oil-water separation interface is formed between the oil inlet and the outlet, ensuring that the oil entering from the oil inlet floats to the water surface after passing through the water layer. The interior of the brazier also has a step protruding from the bottom of the basin body to fill the internal space of the basin body and reduce water consumption. The step is located in the middle of the basin body and forms a groove connected to each side plate of the basin body. The height of the step is lower than the height of the outlet, and the height of the oil inlet is lower than the height of the step.

2. The fire basin of the flowing fire simulation device according to claim 1, characterized in that, The fire basin has a rectangular outline. One of the four side plates of the basin is lower than the other three side plates, forming a notch structure. The notch structure constitutes the flow outlet. The oil inlet is located on the side plate opposite to the flow outlet.

3. The fire basin of the flowing fire simulation device according to claim 2, characterized in that, The guide tongue structure includes an inclined metal plate with one side connected to the top of the lower side plate and the other side for contacting the ground, and a support plate in the space enclosed by the inclined metal plate and the lower side plate. The support plate has two or more supports and ventilation and heat dissipation holes.

4. A flowing fire simulation device, comprising an oil tank, an oil pump, an oil pipeline, and a fire basin, characterized in that, The brazier includes a basin body. At least one horizontally extending outlet is provided on the side plate of the basin body. A guide tongue structure is provided on the outer side of the side plate of the basin body at the position corresponding to the outlet. An oil inlet is also provided on the basin body. The height of the oil inlet is lower than the height of the outlet, so that when water is injected into the basin during use, an oil-water separation interface is formed between the oil inlet and the outlet, ensuring that the oil entering from the oil inlet floats to the water surface after passing through the water layer. The interior of the brazier also has a step protruding from the bottom of the basin body to fill the internal space of the basin body and reduce water consumption. The step is located in the middle of the basin body and forms a groove connected to each side plate of the basin body. The height of the step is lower than the height of the outlet, and the height of the oil inlet is lower than the height of the step.

5. The flowing fire simulation device according to claim 4, characterized in that, The fire basin has a rectangular outline. One of the four side plates of the basin is lower than the other three side plates, forming a notch structure. The notch structure constitutes the flow outlet. The oil inlet is located on the side plate opposite to the flow outlet.

6. The flowing fire simulation device according to claim 5, characterized in that, The guide tongue structure includes an inclined metal plate with one side connected to the top of the lower side plate and the other side for contacting the ground, and a support plate in the space enclosed by the inclined metal plate and the lower side plate. The support plate has two or more supports and ventilation and heat dissipation holes.

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