Flow fire simulation generation device and brazier thereof

Abstract

The invention relates to a flowing fire simulation generation device and a fire pan thereof. The flowing fire simulation generating device comprises an oil tank, an oil pump, an oil conveying pipeline and a brazier, the brazier comprises a brazier body, at least one flowing opening extending in the horizontal direction is formed in a side plate of the brazier body, a flow guide tongue structure is arranged at the position, corresponding to the flowing opening, of the outer side of the side plate of the brazier body, and an oil inlet hole is further formed in the brazier body. The height of the oil inlet hole is lower than that of the flowing opening, so that an oil-water separation interface is formed between the oil inlet hole and the flowing opening by injecting water into the basin body during use, it is guaranteed that oil entering from the oil inlet hole floats to the water surface through a water layer, and the use safety is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire simulation devices, in particular to a flowing fire simulation generating device and a fire basin thereof. Background Art

[0002] With the increase in the number of carrier-based aircraft on large ships, the increase in training subjects, and the increase in the intensity of flight operations, the probability of fuel tank accidents during takeoff and landing operations on the deck of carrier-based aircraft has increased. When the aircraft rolls over, the large amount of fuel carried in the aircraft tank seriously endangers the safety of the entire ship. In history, there have been many fire accidents caused by fuel tank rupture during the takeoff and landing of carrier-based aircraft. Accidents caused by fuel tank ruptures in different operating states of carrier-based aircraft have different flow speeds, flow rates, and spreading behaviors. In order to better carry out efficient rescue and treatment when a fire accident occurs, rescue drills are often required.

[0003] In the prior art, a Chinese utility model patent with an authorization announcement date of 2024.01.26 and an authorization announcement number of CN220398912U discloses a traffic tunnel flowing fire combustion simulation experimental device. The device includes a fire source model placed in the middle of the tunnel protection area, a fire extinguishing system arranged at the top of the tunnel protection area, and an information acquisition system for collecting data; the fire source model is a steel frame structure, including a rectangular oil pan for placing fuel, and notches are provided on both sides of the long sides of the oil pan to allow the fuel to flow out, and the two notches are connected to flow plates that allow the fuel to flow down along them, and the lower ends of the two flow plates are fixedly connected to flow grooves with the same length as the oil pan, and a fuel tank for storing fuel and an oil pump for injecting fuel from the fuel tank into the oil pan at a stable mass flow rate are arranged at a position away from the fire source model. Although the device can simulate the combustion of flowing fire, the fire source model of the device may cause the flame to ignite the fuel in the oil pipeline when igniting the fuel on the oil pan during use, which poses a great safety hazard. Summary of the invention

[0004] The purpose of the present invention is to provide a flowing fire simulation device and a fire basin thereof, which are used to solve the problem that when the fire source model of the flowing fire combustion simulation experimental device in the prior art ignites the fuel on the oil pan, the flame may ignite the fuel in the oil pipeline, posing a major safety hazard.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] A fire basin with a flowing fire simulation generating device, the fire basin comprising a basin body, the side panels of the basin body being provided with at least one flowing opening extending in a horizontal direction, the outer side panels of the basin body being provided with a guide tongue structure at a position corresponding to the flowing opening, the basin body being provided with an oil inlet hole, the height of the oil inlet hole being lower than the height of the flowing opening, so that when in use, water can be injected into the basin body to form an oil-water separation interface between the oil inlet hole and the flowing opening, thereby ensuring that the oil entering from the oil inlet hole floats to the water surface through the water layer.

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

[0008] Furthermore, the guide tongue structure includes an inclined metal plate connected to the top of the lower side panel on one side and used to contact the ground on the other side, and a supporting vertical plate located in the space surrounded by the inclined metal plate and the lower side panel, and there are more than two supporting vertical plates with ventilation and heat dissipation holes opened thereon.

[0009] Furthermore, the interior of the brazier is provided with a step protruding from the bottom of the brazier and filling the interior space of the brazier to reduce water consumption.

[0010] Furthermore, the step is located in the middle of the basin body and forms a circle of grooves connected to the side panels of the basin body.

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

[0012] The above technical solution has the following beneficial effects:

[0013] The present invention pioneers a fire basin for simulating a flowing fire. When in use, the fire basin of the present invention forms an oil-water separation interface between the oil inlet and the flow outlet by injecting water into the basin body, thereby ensuring that the oil entering from the oil inlet floats to the water surface through the water layer and ignites the fuel on the water surface. The water in the basin body acts as a flame retardant layer, and the flame will not ignite the fuel in the oil pipeline. In addition, the water injected into the fire basin prevents direct contact between the fuel and the fire basin, thereby preventing the fire basin from being greatly deformed due to high temperature, thereby improving the safety level of use.

[0014] A flow fire simulation device comprises an oil tank, an oil pump, an oil pipeline and a fire basin, wherein the fire basin comprises a basin body, the side panels of the basin body are provided with at least one flow opening extending in a horizontal direction, the outer side panels of the basin body are provided with a guide tongue structure at a position corresponding to the flow opening, the basin body is also provided with an oil inlet hole, the height of the oil inlet hole is lower than the height of the flow opening, so that when in use, water is injected into the basin body to form an oil-water separation interface between the oil inlet hole and the flow opening, thereby ensuring that the oil entering from the oil inlet hole floats to the water surface through the water layer.

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

[0016] Furthermore, the guide tongue structure includes an inclined metal plate connected to the top of the lower side panel on one side and used to contact the ground on the other side, and a supporting vertical plate located in the space surrounded by the inclined metal plate and the lower side panel, and there are more than two supporting vertical plates with ventilation and heat dissipation holes opened thereon.

[0017] Furthermore, the interior of the brazier is provided with a step protruding from the bottom of the brazier and filling the interior space of the brazier to reduce water consumption.

[0018] Furthermore, the step is located in the middle of the basin body and forms a circle of grooves connected to the side panels of the basin body.

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

[0020] The above technical solution has the following beneficial effects:

[0021] The present invention proposes an improved flowing fire simulation generating device. When in use, the flowing fire simulation generating device of the present invention forms an oil-water separation interface between the oil inlet and the flow outlet by injecting water into the basin body of the fire basin, thereby ensuring that the oil entering from the oil inlet floats to the water surface through the water layer and ignites the fuel on the water surface. The water in the basin body acts as a flame retardant layer, and the flame will not ignite the fuel in the oil pipeline. In addition, the water injected into the fire basin prevents direct contact between the fuel and the fire basin, thereby preventing the fire basin from being greatly deformed due to high temperature, thereby improving the safety level of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0024] Figure 3 It is a structural schematic diagram of a fire basin in an embodiment of a flowing fire simulation generating device;

[0025] Figure 4 A schematic diagram of a flowing fire simulation device in an embodiment;

[0026] Figure 5 Schematic diagram of the fuel speed control system.

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

[0028] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0029] Invention Concept

[0030] The present invention provides a fire basin, which sets a height difference between a flow port and an oil inlet hole. With the help of a water layer which is pre-filled in the fire basin during use and whose water surface is between the oil inlet hole and the flow port, the fuel can enter the fire basin from the oil inlet hole, float to the water surface through the water layer, and then flow out from the flow port. In this way, the water layer can isolate the flame of the burning fuel on the water surface from the oil inlet hole, thereby preventing the flame from igniting the oil inlet hole, playing a backfire prevention function and ensuring the safety of the entire device.

[0031] Based on the above concept, the present invention provides a variety of different embodiments of the flowing fire simulation generating device for illustration.

[0032] In a more basic embodiment, Figure 4 As shown, the flowing fire simulation device includes a fuel tank 5, a fuel pump 6, a fuel pipeline, a solenoid valve 7 and a fire basin. When in use, the fuel pump 6 is started, and the fuel pump 6 can deliver the fuel in the fuel tank 5 to the fire basin through the fuel pipeline and the solenoid valve 7 at the required speed and flow rate. Specifically, the fire basin includes a basin body 4, and one or more flow openings extending in the horizontal direction on the side plate of the basin body 4. The specific number of flow openings is determined according to needs. A guide tongue structure 3 is provided on the outer side of the basin body side plate at a position corresponding to the flow opening. The guide tongue structure 3 is used to guide the ignited fuel flowing out of the flow opening to the ground so that it can flow and spread. The basin body 4 is also provided with an oil inlet hole 1, and the height of the oil inlet hole 1 is lower than the height of the flow opening. When in use, water is injected into the basin body to form an oil-water separation interface between the oil inlet hole 1 and the flow opening, so that the oil entering from the oil inlet hole 1 floats to the water surface through the water layer. After ignition, as the fuel is continuously injected, the fuel can overflow from the flow opening.

[0033] Based on the above embodiment, the fire basin can be circular, and the flow opening can be an arc-shaped opening opened on the wall of the circular basin, or the outline of the fire basin can be polygonal, and the guide tongue structure is provided on the required edge. In a preferred embodiment, as Figure 1-3 As shown, the outline of the fire basin is rectangular, and one of the four side panels of the basin body 4 is lower than the other three side panels to form a notch structure. The notch structure constitutes the flow port, and the oil inlet 1 is located on the side panel opposite to the flow port. This structure is simple and the flow port and the oil inlet 1 are far apart, which can further improve safety.

[0034] On the basis of the above-mentioned embodiment, the inclination angle of the inclined metal plate of the guide tongue structure 3 can be adjusted according to the environment actually required to be simulated. In a preferred embodiment, the guide tongue structure 3 includes an inclined metal plate connected to the top of the lower side plate on one side and used to contact the ground on the other side, and a supporting vertical plate in the space surrounded by the inclined metal plate and the lower side plate. There are more than two supporting vertical plates and ventilation and heat dissipation holes are opened thereon. The heat generated by the combustion of fuel 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 being deformed due to excessive temperature.

[0035] On the basis of the above-mentioned embodiments, in one embodiment, the basin body 4 is an ordinary basin body, and the inner cavity is a concave cavity structure consistent with the shape of the basin body 4. In a preferred embodiment, in order to reduce the amount of water used and avoid excessive water causing the fuel temperature to drop, the basin body 4 of the fire basin is also provided with a step 2 protruding from the bottom of the basin body 4 and filling the inner space of the basin body 4 to reduce the amount of water used. The shape of the step 2 can be set at will, as long as it can fill the inner cavity of the basin body 4 and leave the oil inlet hole 1. In a preferred embodiment, the step 2 is located in the middle of the basin body 4 and forms a circle of grooves 8 connected to the side panels of the basin body 4, so that there is more water on the side walls of each part of the basin body 4 to better cool the side walls of the basin body 4.

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

[0037] The flowing fire simulation generating 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 of the fuel control system is used to compare the difference between the actual speed value of the fuel flow at the outlet and the expected speed value input at the inlet. The opening of the solenoid valve is controlled by the PID controller to achieve accurate control of the actual flow speed of the fuel.

[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 height of the water surface is between the oil inlet hole 1 and the flow port, and the fuel in the fuel tank 5 is pumped out by the oil pump 6 into the oil pipeline, the oil pipeline is connected in series with the solenoid valve 7, and the fuel enters the fire basin from the oil inlet hole 1 of the fire basin through the oil pipeline. After entering the fire basin, the fuel first enters the water. Oil and water are not soluble and are stratified due to the density difference. The density of the fuel is less than that of water. It floats out of the water and floats on the water surface, forming a distribution state in which the lower layer is water and the upper layer is fuel, and the two liquids are layered up and down in the fire basin. As the oil pump 6 continues to inject fuel into the fire basin, the fuel liquid level slowly rises until the fuel liquid level reaches the height of the lower side of the fire basin. If it continues to be filled, the fuel overflows from the lower side along the guide tongue structure 3 to form a flowing spread.

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

[0040] Filling the fire basin with water also ensures that the fuel and the fuel delivery pipeline are separated by the water layer, preventing the ignition of the fuel during use from causing the flame to ignite the fuel in the oil delivery pipeline, thereby improving safety during use. The groove 8 between the step 2 and the side panel in the fire basin is filled with water, which also improves the heat dissipation performance of the fire basin and prevents the fire basin from deformation due to high temperature.

[0041] The specific structure of the fire bowl in the embodiment of the present invention is the same as the fire bowl structure in the embodiment of the flowing fire simulation generating device described above, and will not be further described herein.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A fire basin with a flowing fire simulation device, characterized in that: The fire basin includes a basin body, and at least one flow outlet extending horizontally is provided on the side panel of the basin body. A guide tongue structure is provided on the outer side of the side panel of the basin body at a position corresponding to the flow outlet. An oil inlet hole is also provided on the basin body, and the height of the oil inlet hole is lower than the height of the flow outlet. When in use, water is injected into the basin body to form an oil-water separation interface between the oil inlet hole and the flow outlet, thereby ensuring that the oil entering from the oil inlet hole floats to the water surface through the water layer.

2. The fire basin of the flowing fire simulation generating device according to claim 1 is characterized in that: The outline of the fire basin is rectangular. One of the four side panels of the basin body is lower than the other three side panels to form a notch structure. The notch structure constitutes the flow port. The oil inlet is located on the side panel opposite to the flow port.

3. The fire basin of the flowing fire simulation generating device according to claim 2 is characterized in that: The guide tongue structure includes an inclined metal plate connected to the top of the lower side plate on one side and used to contact the ground on the other side, and a supporting vertical plate in the space surrounded by the inclined metal plate and the lower side plate. There are more than two supporting vertical plates and ventilation and heat dissipation holes are opened on them.

4. The fire basin of the flowing fire simulation generating device according to any one of claims 1 to 3, characterized in that: The interior of the fire basin is also provided with a step protruding from the bottom of the basin and filling the interior space of the basin to reduce water consumption.

5. The fire basin of the flowing fire simulation generating device according to claim 4 is characterized in that: The step is located in the middle of the basin body and forms a circle of grooves connected with the side plates of the basin body.

6. The fire basin of the flowing fire simulation generating device according to claim 5, characterized in that: The height of the step is lower than the height of the flow port, and the height of the oil inlet hole is lower than the height of the step.

7. A flow fire simulation device, comprising an oil tank, an oil pump, an oil pipeline and a fire basin, characterized in that: The fire basin includes a basin body, and at least one flow outlet extending horizontally is provided on the side panel of the basin body. A guide tongue structure is provided on the outer side of the side panel of the basin body at a position corresponding to the flow outlet. An oil inlet hole is also provided on the basin body, and the height of the oil inlet hole is lower than the height of the flow outlet. When in use, water is injected into the basin body to form an oil-water separation interface between the oil inlet hole and the flow outlet, thereby ensuring that the oil entering from the oil inlet hole floats to the water surface through the water layer.

8. The flowing fire simulation generating device according to claim 7, characterized in that: The outline of the fire basin is rectangular. One of the four side panels of the basin body is lower than the other three side panels to form a notch structure. The notch structure constitutes the flow port. The oil inlet is located on the side panel opposite to the flow port.

9. The flowing fire simulation generating device according to claim 8, characterized in that: The guide tongue structure includes an inclined metal plate connected to the top of the lower side plate on one side and used to contact the ground on the other side, and a supporting vertical plate in the space surrounded by the inclined metal plate and the lower side plate. There are more than two supporting vertical plates and ventilation and heat dissipation holes are opened on them.

10. The flowing fire simulation generating device according to any one of claims 7 to 9, characterized in that: The interior of the fire basin is also provided with a step protruding from the bottom of the basin and filling the interior space of the basin to reduce water consumption.

11. The flowing fire simulation generating device according to claim 10, characterized in that: The step is located in the middle of the basin body and forms a circle of grooves connected with the side plates of the basin body.

12. The flowing fire simulation generating device according to claim 11, characterized in that: The height of the step is lower than the height of the flow port, and the height of the oil inlet hole is lower than the height of the step.

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