阅读说明：本技术 水上流淌火模拟装置 (Overwater flowing fire simulator ) 是由 赵金龙 宋广恒 孙潇潇 黄弘 李信江 李昭乾 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种水上流淌火模拟装置,水上流淌火模拟装置包括：燃烧池模块,燃烧池模块包括油盘,油盘具有燃烧腔,燃烧腔内注有液态水；供油模块,供油模块的供油桶用于通过供油管路朝向燃烧腔内供油品；染色模块,染色模块设于供油模块与燃烧池模块之间,且染色模块用于对供入燃烧腔内的油品进行染色；采集模块,采集模块用于对燃烧腔内的燃烧状态进行采集,且采集模块包括热电偶、热流计以及用于对染色后的油品和油品燃烧蔓延过程进行拍摄的拍摄设备。本发明实施例的水上流淌火模拟装置,通过在油品流入燃烧腔前实现对油品的染色,使得不点燃条件下油品的扩散过程易于观察,且可精确测量出油品的燃烧情况,以确定点燃条件下的油品扩散过程。(The invention discloses a water flowing fire simulator, which comprises: the combustion tank module comprises an oil pan, the oil pan is provided with a combustion chamber, and liquid water is injected into the combustion chamber; the oil supply module is used for supplying oil towards the combustion cavity through an oil supply pipeline; the dyeing module is arranged between the oil supply module and the combustion pool module and is used for dyeing the oil supplied into the combustion cavity; the collection module, collection module are used for gathering the combustion state in the combustion chamber, and collection module includes thermocouple, heat flow meter and is used for carrying out the shooting equipment of shooing to the oil after the dyeing and oil combustion spreading process. According to the overwater flame-dripping simulation device provided by the embodiment of the invention, the oil is dyed before the oil flows into the combustion chamber, so that the diffusion process of the oil under the non-ignition condition is easy to observe, and the combustion condition of the oil can be accurately measured, so that the diffusion process of the oil under the ignition condition is determined.)

1. An aquatic fire-drooling simulation device (100), comprising:

the combustion tank module (1), the combustion tank module (1) comprises an oil pan (11), the oil pan (11) is provided with a combustion chamber, and liquid water is injected into the combustion chamber;

the oil supply module (2), the oil supply barrel (21) of the oil supply module (2) is used for supplying oil towards the combustion chamber through an oil supply pipeline (22);

the dyeing module (3) is arranged between the oil supply module (2) and the combustion pool module (1), and the dyeing module (3) is used for dyeing oil supplied into the combustion cavity;

collection module (4), collection module (4) are used for right the combustion state in the combustion chamber is gathered, just collection module (4) include thermocouple, heat flow meter and be used for spreading the shooting equipment that the process was shot to the oil after the dyeing and oil burning.

2. The aquatic fire sagging simulation device (100) of claim 1, wherein the dyeing module (3) comprises an oil storage tank connected in series to the oil supply line (22) and adapted to dye oil in the oil supply line (22).

3. The aquatic trickling fire simulator (100) according to claim 2, characterized in that said dyeing module (3) further comprises a supply of dyeing agent and a mixing stirrer; wherein

The coloring agent supply part is connected with the oil storage barrel and is used for facing the coloring agent mixed with the oil supplied in the oil storage barrel, the mixing stirrer is provided with a stirring part extending into the oil storage barrel, and the stirring part is used for stirring the coloring agent and the oil in the oil storage barrel.

4. The aquatic fire sagging simulation device (100) of claim 3, wherein said oil supply module (2) comprises an oil supply pump (23), said oil supply pump (23) being adapted to drive the oil flow in said oil supply line (22), said dye supply comprising a supply port for supplying dye into said oil storage tank; wherein

The rotating speed of the oil supply pump (23) is in direct proportion to the feeding amount at the feeding port.

5. The aquatic trickling fire simulator (100) according to any of claims 1 to 4, characterized in that said combustion chamber is configured as a cylindrical chamber with a circular cross section and is provided at its center with a fuel supply opening communicating with said fuel supply line (22).

6. The aquatic trickling fire simulator (100) according to claim 5, wherein said fuel supply module (2) further comprises a hose (24), said hose (24) being submerged in said liquid water, and one end of said hose (24) extending outside said combustion chamber for connection to said fuel supply line (22), the other end of said hose (24) projecting upwards at the center of said combustion chamber and forming said fuel supply port.

7. The aquatic trickling fire simulator (100) according to claim 6, wherein said hose (24) comprises an outer vertical section (241), a horizontal section (242) and a central vertical section (243), said horizontal section (242) being distributed parallel to the bottom wall of said combustion chamber and being arranged along the radial extension of said combustion chamber, said central vertical section (243) coinciding with the axis of said combustion chamber, said outer vertical section (241) being arranged parallel to the inner peripheral wall of said combustion chamber; wherein

The upper end of the outer vertical section (241) is communicated with the oil supply pipeline (22), the lower end of the outer vertical section is connected with the outer end of the horizontal section (242), the lower end of the central vertical section (243) is connected with the inner end of the horizontal section (242), and the upper end of the central vertical section is formed into the oil supply port.

8. The overwater sagging fire simulation device (100) as claimed in claim 5, wherein the shooting equipment comprises a first shooting camera (41) and a second shooting camera (42), the first shooting camera (41) is arranged above the combustion chamber and opposite to the oil supply port along the axial direction of the combustion chamber, and the second shooting camera (42) is arranged radially outside the combustion chamber and higher than the oil surface.

9. The aquatic trickling fire simulation device (100) according to claim 5, wherein the number of thermocouples (43) is multiple, and the multiple thermocouples (43) are distributed in sequence in a radial direction of the combustion chamber.

10. An aquatic trickling fire simulator (100) according to any of claims 1 to 4, wherein the combustion chamber is provided with a water inlet and a water outlet, and the water inlet and the water outlet are provided with regulating valves (13), and the regulating valves (13) are used for controlling the opening and closing states of the water inlet and the water outlet so as to adjust the liquid level height of the water in the combustion chamber.

Technical Field

The invention relates to the technical field of experimental equipment, in particular to a overwater flowing fire combustion spreading simulation device.

Background

In the process of transporting oil products on water, once the large oil storage tank leaks, the large oil storage tank is very easy to ignite, large-scale water flowing fire accidents occur, the safety of lives and properties of people can be directly endangered, and dense smoke and residues generated by the oil products can pollute the surrounding environment. When oil products are combusted on the water surface, the combustion area is extremely unstable, and a large amount of oil products are further diffused and combusted along with the continuous leakage of the oil products, so that the fire scale is continuously enlarged; on the other hand, the high-temperature flame constantly heats the oil layer, and a large amount of oil steam is produced on the surface of the oil layer, and the flame can incline under the windy condition, so that the smoke transversely diffuses, and the rescue difficulty is increased. Therefore, a perfect overwater sagging fire experimental device needs to be developed to simulate the diffusion rule and the combustion behavior of oil products on the water surface, and technical support is provided for emergency rescue of overwater sagging fire accidents.

The existing overwater running fire simulation experiment research has the following two technical problems: and the water oil products are leaked and combusted. (1) Under the condition of no ignition, the positions of the diffusion front edges of the oil products are difficult to determine due to the similar colors of the oil and the water, and further the diffusion rule of the oil products is obtained; (2) under the condition of oil ignition, the combustion rate of oil directly determines the spreading range of a combustion oil layer, but the combustion rate is uncertain at present. The combustion rate is closely related to the heat transfer process of a combustion oil layer and a water cushion layer, but a related device for measuring the heat transfer process between oil and water is lacked at present.

Disclosure of Invention

The present invention is directed to solving the above-mentioned problems of the prior art. Therefore, the overwater fire flowing simulation device provided by the invention can be used for dyeing oil products in advance, so that the oil products can be observed in a diffusion process, and a heat transfer process in a combustion chamber can be accurately measured, so that the combustion rate of the oil products can be determined.

The overwater fire-dripping simulation device provided by the embodiment of the invention comprises: the combustion tank module comprises an oil pan, the oil pan is provided with a combustion chamber, and liquid water is injected into the combustion chamber; the oil supply module is characterized in that an oil supply barrel of the oil supply module is used for supplying oil towards the combustion cavity through an oil supply pipeline; the dyeing module is arranged between the oil supply module and the combustion pool module and is used for dyeing the oil supplied into the combustion cavity; the collection module, the collection module is used for right the combustion state in the combustion chamber is gathered, just the collection module includes thermocouple, heat flow meter and is used for carrying out the shooting equipment of shooing to the oil after the dyeing.

According to the overwater flame simulating device provided by the embodiment of the invention, the oil is dyed before the oil flows into the combustion chamber, so that the diffusion process of the oil under the non-ignition condition is easy to observe, and the combustion condition of the oil can be accurately measured to determine the oil diffusion process under the ignition condition.

According to some embodiments of the above-water flowing fire simulation device, the dyeing module comprises an oil storage barrel which is connected in series with the oil supply pipeline and is used for dyeing oil in the oil supply pipeline.

According to some embodiments of the invention, the water flowing fire simulator comprises a dyeing module, a water inlet, a water outlet, a water flowing fire simulator, a dyeing module, a dyeing agent supply and a mixing stirrer; wherein the coloring agent supply part with the oil storage bucket links to each other, and is used for the orientation supply in the oil storage bucket with the mixed coloring agent of oil, mixing agitator has to extend to stirring portion in the oil storage bucket, stirring portion is used for right coloring agent and oil in the oil storage bucket stir.

According to some embodiments of the invention, the oil supply module comprises an oil supply pump for driving oil in the oil supply pipeline to flow, and the coloring agent supply part comprises a supply port for supplying coloring agent towards the oil storage barrel; wherein the rotating speed of the oil supply pump is in direct proportion to the feeding amount at the feeding port.

According to the overwater sagging fire simulation device disclosed by the invention, the combustion cavity is a cylindrical cavity with a circular cross section, and an oil supply port communicated with the oil supply pipeline is formed in the center of the combustion cavity.

According to some embodiments of the water flowing fire simulator, the oil supply module further comprises a hose, the hose is immersed in the liquid water, one end of the hose extends out of the combustion chamber to be connected with the oil supply pipeline, and the other end of the hose extends upwards at the center of the combustion chamber to form the oil supply port.

According to some embodiments of the present invention, the hose includes an outer vertical section, a horizontal section and a central vertical section, the horizontal section is distributed parallel to the bottom wall of the combustion chamber and extends along the radial direction of the combustion chamber, the central vertical section is coincident with the axis of the combustion chamber, and the outer vertical section is parallel to the inner peripheral wall of the combustion chamber; the upper end of the outer side vertical section is communicated with the oil supply pipeline, the lower end of the outer side vertical section is connected with the outer end of the horizontal section, the lower end of the center vertical section is connected with the inner end of the horizontal section, and the upper end of the center vertical section is formed into the oil supply port.

According to some embodiments of the overwater sagging fire simulation device, the shooting equipment comprises a first shooting camera and a second shooting camera, the first shooting camera is arranged above the combustion cavity and opposite to the oil supply port along the axial direction of the combustion cavity, and the second shooting camera is arranged on the radial outer side of the combustion cavity and higher than the oil surface.

According to some embodiments of the present invention, the number of the thermocouples is multiple, and the thermocouples are sequentially distributed in a radial direction of the combustion chamber.

According to the overwater fire-dripping simulation device provided by some embodiments of the invention, the combustion chamber is provided with a water inlet and a water outlet, the water inlet and the water outlet are provided with regulating valves, and the regulating valves are used for controlling the opening and closing states of the water inlet and the water outlet so as to regulate the liquid level height of water in the combustion chamber.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a water flowing fire simulator according to an embodiment of the invention;

fig. 2 is a flow chart of the operation of the water flowing fire simulator according to the embodiment of the invention.

Reference numerals:

the simulation device 100 for the flowing fire on the water,

a combustion tank module 1, an oil pan 11, a liquid level meter 12, a regulating valve 13,

an oil supply module 2, an oil supply barrel 21, an oil supply pipeline 22, an oil supply pump 23, a hose 24, an outer vertical section 241, a horizontal section 242, a central vertical section 243,

dyeing module 3, collection module 4, first camera 41, second camera 42, thermocouple 43, electronic balance 44, heat flow meter 45, information acquisition module 46, some firearm 47.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

An overwater sagging fire simulation device 100 according to an embodiment of the present invention is described below with reference to fig. 1-2.

As shown in fig. 2, the water flowing fire simulator 100 according to the embodiment of the present invention includes: the device comprises a combustion pool module 1, an oil supply module 2, a dyeing module 3 and an acquisition module 4.

The combustion tank module 1 includes food tray 11, and food tray 11 has the open burning chamber up, and the burning intracavity is annotated and is had liquid water, and the water cushion layer is constructed to liquid water, has certain degree of depth through setting up the burning chamber for the water cushion layer in the burning chamber has sufficient thickness, in order to reduce the diapire to the produced interference of oil, accurately simulates out the surface of water environment, has improved the simulation accuracy.

The oil supply module 2 comprises an oil supply barrel 21, the oil supply barrel 21 is provided with an oil liquid cavity, oil products which can meet single experiment are stored in the oil liquid cavity, and the oil supply barrel 21 can effectively block static electricity to improve the safety of the oil supply barrel 21. The one end of fuel feeding pipeline 22 stretches into the fluid intracavity that supplies oil drum 21, and the other end of fuel feeding pipeline 22 stretches into the burning intracavity, and the oil can flow to the burning chamber through fuel feeding pipeline 22 to water cushion layer department flows into, and the oil can be evenly to diffusion all around in the top of water cushion layer, thereby simulates out the sight of oil leakage, and after the delay ignition time that is predetermine, through some firearm 47 auto-ignition oil, can simulate out the condition that the oil leaked the burning. The preset ignition delay time is generally selected according to the experience of the experimenter and the experimental target.

It should be noted that a fireproof protection plate is arranged between the oil supply barrel 21 and the oil pan 11, and the flame in the oil pan 11 and the oil supply barrel 21 are completely separated by the fireproof protection plate, so that the condition that the oil supply barrel 21 is ignited by the flame to generate explosive combustion in the experimental process is avoided, and the safety of the experimental process is improved.

And as shown in fig. 1, dyeing module 3 is located between fuel feeding module 2 and combustion chamber module 1, and dyeing module 3 establishes ties on fuel feeding pipeline 22, the oil in fuel feeding bucket 21 can get into dyeing module 3 through fuel feeding pipeline 22 in, and dyeing module 3 is used for dyeing the oil that supplies in the combustion chamber, the oil after the dyeing is in order to flow into combustion chamber module 1 through fuel feeding pipeline 22, through dyeing the oil, make the oil easily observe at the diffusion process that flows of combustion chamber intracavity, and do benefit to data acquisition, the convenience of data acquisition and analytic process has been improved, the experimental precision has been improved.

Wherein, dyeing module 3 is equipped with solitary control switch, when need not closing oil dyeing, can close dyeing module 3 through control switch, and the oil need not can flow into the combustion chamber through the dyeing. It should be noted that, the coloring agent selected in the experimental process can be a reagent with a vivid color so as to be easy to observe, the coloring agent has little influence on the physical and chemical properties of the oil product, and meanwhile, the coloring agent is insoluble in other liquids so as to ensure the accuracy of the experiment.

The collection module 4 is used for collecting the combustion state in the combustion chamber, and the collection module 4 comprises a thermocouple, a heat flow meter and shooting equipment for shooting the dyed oil product. Wherein, thermocouple 43 installs in the combustion chamber, and thermocouple 43 can be used for measuring flame temperature, oil reservoir temperature and water cushion layer temperature, and thermocouple 43's radial outside is equipped with heat flow meter 45 simultaneously, and heat flow meter 45 passes through the support to be fixed in the oil face top for measure the radiation feedback that flame produced, and shooting equipment is used for carrying out lasting shooting to the combustion chamber to the diffusion and the combustion process of oil shoot.

That is, when the oil is burned in the combustion chamber, the collection module 4 can measure the flame temperature, the oil layer temperature and the water cushion temperature change, and measure the radiation feedback generated by the flame to determine the combustion condition and the dangerous range of the flame, and can obtain the combustion rate of the oil for determining the diffusion process of the oil under the ignition condition. Wherein, in this application, through carrying out dyeing to the oil for shoot equipment to the oil and carry out accuracy, shoot reliably in the diffusion state of not lighting the in-process, guarantee the definition of shooting the effect, catch the oil effectively and flow the in-process details that diffuse at the burning, do benefit to the accurate collection of experimental data, thereby in order to solve traditional simulation experiment in the lower problem of experimental result accuracy.

It should be noted that the acquisition module 4 further includes: electronic balance 44 and information acquisition module 464, supply oil drum 21 to install on electronic balance 44, electronic balance 44 is used for the real-time recording oil's mass change to combine the burning condition of oil to carry out the analysis, in order to improve the accuracy of experimentation, simultaneously, the data that collection module 4 gathered all inputs information acquisition module 46, and information acquisition module 46 can be with the physical signal conversion digital signal who records, in order to do benefit to the further processing of computer.

According to the overwater fire flowing simulation device 100, the dyeing module 3 is arranged between the oil supply module 2 and the combustion pool module 1, so that oil is dyed before flowing into the combustion cavity, the shooting equipment of the acquisition module 4 can shoot the diffusion process of the oil under the non-ignition condition in more detail and accurately, the combustion condition of the oil can be accurately measured through the acquisition module 4, the diffusion process of the oil under the ignition condition is obtained, and the experimental precision is greatly improved.

In some embodiments, the dyeing module 3 includes a barrel reservoir connected in series with the oil supply line 22 and used to dye the oil in the oil supply line 22. That is to say, when the experiment began, the oil in the oil supply bucket 21 can be transported through oil supply pipeline 22 to flow in from the liquid inlet department of oil storage bucket, and dye the oil of oil storage bucket through dyeing module 3, the oil after the dyeing can flow in oil supply pipeline 22 through the liquid outlet of oil storage bucket, and flow to the burning chamber in order to be used for the experiment. Wherein, the dyeing process of oil can be gone on in the oil storage bucket to ensure that the dyeing environment is stable, guarantee the validity of dyeing process, make the oil can enter into the combustion chamber after effectively dyeing in the oil storage bucket, and then guarantee the accuracy of experimental result.

It should be noted that, a small amount of oil can be stored in advance to the oil storage bucket in the dyeing apparatus for the liquid outlet covers all the time under the liquid level of oil, keeps stable with the oil of guaranteeing to flow to the combustion chamber through supply oil pipe way 22, avoids producing the bubble in water cushion department, has improved the stability of experimentation, avoids producing unreliable discrete data.

In some embodiments, the staining module 3 further comprises a stain supply and a mixing blender. Wherein the coloring agent supply part is connected with the oil storage barrel and is used for supplying a coloring agent mixed with oil towards the interior of the oil storage barrel, the mixing stirrer is provided with a stirring part extending into the oil storage barrel, and the stirring part is used for stirring the coloring agent and the oil in the oil storage barrel.

That is to say, there is the dyeing agent in the dyeing agent supply part, and dyeing agent supply part is used for keeping releasing the dyeing agent towards the oil storage bucket to guarantee that the oil that flows into in the oil storage bucket all can realize the dyeing, and the oil in the oil storage bucket is continuously stirred through the stirring portion of mixing agitator simultaneously, makes the dyeing agent can carry out intensive mixing with the oil, makes the colour of oil keep even, avoids the oil color spot to appear and leads to observing the degree of difficulty rising, has improved the experimental precision.

In some embodiments, as shown in fig. 1, the oil supply module 2 includes an oil supply pump 23, the oil supply pump 23 is used for driving the oil flow in the oil supply line 22, the colorant supply part includes a supply port for supplying colorant into the oil storage tank, and the rotation speed of the oil supply pump 23 is proportional to the amount of the supply at the supply port. Wherein, fuel feed pump 23 can take to the peristaltic pump, and fuel feed pump 23 can be according to actual need with the adjustment rotational speed for the oil in the fuel feed bucket 21 can not the velocity flow in the combustion chamber, thereby simulates out the oil leakage state under the different situation in the combustion chamber, has improved the variety of simulation experiment, and fuel feed pump 23 places on the elevating platform simultaneously, and the lift of accessible elevating platform comes control fuel feed pump 23 height, with the stability of guaranteeing output.

It should be noted that, the coloring agent supply member can be according to the coloring agent of the corresponding quantity of rotational speed output of fuel feed pump 23, and the coloring agent passes through the feed inlet and flows into the oil storage bucket for oil in the oil storage bucket keeps certain proportion with the coloring agent all the time, and after the intensive mixing, the colour of the oil among the experimentation remains the unanimity all the time, in order to do benefit to the observation and detection.

In some embodiments, the combustion chamber is configured as a cylindrical chamber having a circular cross section, and an oil supply port communicating with the oil supply line 22 is provided at the center of the combustion chamber. That is to say, as shown in fig. 1, the fuel feeding port is constructed into the smooth circular structure of opening, the fuel feeding port is fixed at the center of oil pan 11, when the oil spills over from the fuel feeding port, the oil evenly spreads all around to the surface of water, and the diffusion scope of oil is approximate circular, be cylindrical cavity through setting up the burning chamber, make the oil all have sufficient diffusion distance along arbitrary radial, avoid the lateral wall in burning chamber to disturb the free diffusion of oil, make the diffusion orbit of oil be close the diffusion orbit of leakage on water, the accuracy of simulation experiment has been improved, and simultaneously, make the burning chamber have sufficient degree of depth, after the water injection in the burning chamber, construct the water cushion layer that has sufficient thickness, the accuracy of simulation experiment has further been improved.

It should be noted that, the lateral wall of the oil pan 11 is also provided with a liquid level meter 12, and the liquid level meter 12 is used for marking the water level, so that an operator can adjust the water level in the combustion chamber according to the liquid level meter 12, and meanwhile, a thermometer is fixed at the edge position of the oil pan 11 and spaced from the wall surface, and is used for measuring the overall water temperature of the water cushion layer, and a scale is installed at the center of the oil pan 11 and used for assisting in observing the change of the flame height in real time, so as to improve the reliability of data analysis.

The overwater fire flowing simulation device 100 can accurately simulate the diffusion track of oil leakage on water by constructing the combustion cavity as the cylindrical cavity, namely can simulate a large-size test scene, and particularly can adjust the radial size of the oil pan 11, so that the device can simulate a larger test scale and a larger size, and has a wider application range.

In some embodiments, the fuel module 2 further comprises a hose 24, the hose 24 is submerged in the liquid water, one end of the hose 24 extends out of the combustion chamber to be connected to the fuel supply line 22, and the other end of the hose 24 protrudes upward at the center of the combustion chamber and forms the fuel supply port.

Specifically, as shown in fig. 1, the hose 24 is integrally arranged along the radial extension of the combustion chamber, the outer end of the hose 24 is communicated with the oil supply pipeline 22, and the inner end of the hose 24 is configured with an oil supply port which extends upwards and is horizontally arranged, oil can flow into the hose 24 from the oil supply pipeline 22 and flow to the center of the combustion chamber along the hose 24 so as to flow upwards from the oil supply port into the combustion chamber, thereby simulating the condition of oil leakage, meanwhile, the middle area of the hose 24 is bent downwards so as to be arranged under the water surface, so that the main part of the hose 24 is separated from the oil which is combusted, the damage of the hose 24 caused by the direct combustion of the oil at the outer side wall of the hose 24 is avoided, and the overall safety of the oil supply module 2 is improved.

In some embodiments, as shown in fig. 1, the hose 24 includes an outer vertical section 241, a horizontal section 242 and a central vertical section 243, the horizontal section 242 is distributed parallel to the bottom wall of the combustion chamber and is disposed along the radial extension of the combustion chamber, the central vertical section 243 coincides with the axis of the combustion chamber, the outer vertical section 241 is disposed parallel to the inner peripheral wall of the combustion chamber, the upper end of the outer vertical section 241 is communicated with the oil supply pipeline 22, the lower end of the outer vertical section 243 is connected with the outer end of the horizontal section 242, and the lower end of the central vertical section 243 is connected with the inner end of the horizontal section 242 and the upper end of the central vertical section 243 forms an oil supply port.

It should be noted that, the outer vertical section 241, the horizontal section 242 and the central vertical section 243 are all constructed as a straight tube structure, and L-shaped connecting structures are respectively arranged between the outer vertical section 241 and the horizontal section 242 and between the horizontal section 242 and the central vertical section 243, so that the hoses 24 are constructed as a concave structure by interconnecting multiple sections, thereby reducing the processing difficulty of the hoses 24, reducing the overall length of the hoses 24, lowering the processing cost, and keeping an enough distance between the whole horizontal section 242 and an oil layer, so as to reduce the influence of heat generated by oil combustion on the horizontal section 242, and improve the reliability of the oil supply process.

In some embodiments, as shown in fig. 1, the shooting device includes a first shooting camera 41 and a second shooting camera 42, the first shooting camera 41 is disposed above the combustion chamber and opposite to the oil supply port along the axial direction of the combustion chamber, and the second shooting camera 42 is disposed radially outside the combustion chamber and above the oil level.

That is to say, when the oil flows out and outdiffusion from the oil feeding mouth, the diffusion scope of oil can be shot downwards from the combustion chamber top to first shooting camera 41, through with first shooting camera 41 setting directly over the oil feeding mouth for the oil feeding mouth is located the centre position department of the photo of shooing, can record completely with the diffusion vestige of guaranteeing the oil, avoids appearing omitting, and makes one-way diffusion distance more directly perceived, in order to do benefit to analytic processing on next step.

Further, when the oil begins to burn, the second camera 42 of shooing can inwards shoot from the radial outside in combustion chamber to the produced flame height of record oil, is greater than the height of oil level slightly through setting up the height that the second camera 42 of shooing for the second camera 42 of shooing can just right with the flame along the radial outside in combustion chamber, in order to reduce the photo distortion, does benefit to and improves the measurement accuracy of flame height.

Therefore, the diffusion range of the oil product and the flame height generated by the oil product are respectively recorded by the first shooting camera 41 and the second shooting camera 42, and shot photos are transmitted to the information acquisition module 464, so that automatic frame-by-frame comparison is facilitated, and the data precision of the experiment is further improved.

In some embodiments, the plurality of thermocouples 43 is plural, and the plurality of thermocouples 43 are sequentially distributed in a radial direction of the combustion chamber to be sequentially arranged from the center to the periphery of the combustion chamber. Wherein, the combustion chamber is equipped with multiunit thermocouple 43, and multiunit thermocouple 43 can encircle the circumference in combustion chamber and follow the extension and arrange to detect a plurality of positions in combustion chamber, single group thermocouple 43 has a plurality of thermocouples 43, and a plurality of thermocouples 43 distribute along the axial in combustion chamber in proper order, with constructing the galvanic couple tree, the galvanic couple tree can detect flame and the water blanket of different levels simultaneously, in order to obtain detailed temperature data, does benefit to the reliability that improves simulation experiment. In some embodiments, the combustion chamber is provided with a water inlet and a water outlet, and the water inlet and the water outlet are provided with a regulating valve 13, and the regulating valve 13 is used for controlling the opening and closing states of the water inlet and the water outlet. That is, at the beginning of the experiment, the operator can open the water inlet and outlet through the regulating valve 13 to inject water into the combustion chamber, adjust the water level in the combustion chamber to the required height by referring to the label of the liquid level meter 12, and close the water inlet and outlet after the adjustment is completed. And after the experiment is finished, the operating personnel opens the water inlet and the water outlet through the adjusting valve 13 so that the oil-water mixture in the combustion chamber is discharged to a designated container for harmless treatment, and after the oil-water mixture is discharged, the water inlet and the water outlet can be closed through the adjusting valve 13. In some embodiments, the combustion chamber is further provided with an oil spill port to enable directional discharge through the oil spill port when there is an excess of oil in the combustion chamber.

In some embodiments, as shown in fig. 1, an igniter 47 is disposed at an upper end of the oil overflow port, the igniter 47 is used for igniting oil in the combustion chamber, the igniter 47 may be an automatic igniter, the igniter 47 is electrically connected to the acquisition module 4, and the acquisition module 4 may control the igniter 47 to perform automatic ignition according to ignition delay time, so as to simulate a flaming combustion condition under different ignition delay times, and meet the diversity of simulation. Therefore, an operator can finish remote ignition through the igniter 47, the possibility that the operator is injured due to explosion or sputtering after oil products are ignited is avoided, and the safety of a simulation experiment is improved.

In specific experimental process, earlier to the water injection in the combustion chamber, observe level gauge 12 to adjust the water level as required, arrange the fire protection shield and connect gradually fuel feeding module 2. After the water surface is calm, the oil supply pump 23 is adjusted, the acquisition module 4 is opened, oil supply is started to the combustion chamber, and oil products are ignited according to the preset ignition delay time. When the ignition delay time is short or the amount of oil spillage is small, the combustion area is in a small circle shape and cannot cover the thermocouple 43 at the far end, but the tendency of the combustion area to expand is still observed, and the flame height increases accordingly. At this stage, the experimenter needs to be far away from the combustion chamber and observe the real-time data acquisition dynamics, so as to ensure the shooting effect of the first shooting camera 41 and the second shooting camera 42. And then, the oil product reaches the maximum combustion area, the fire behavior is obviously increased, the radiation feedback is stronger, and the heat generated by the flame can be obviously sensed. Along with the increase of the combustion area, the combustion rate is increased, the oil consumption in unit time is larger than the overflow amount, the combustion area is retracted and gradually tends to be stable, the combustion rate and the oil supply rate of the oil supply pump 23 reach dynamic balance, and the flame tends to be stable. After a period of stable combustion, the fuel supply pump 23 is turned off to stop fuel supply, after several seconds, the flame area is reduced, the combustion process is ended, and at this time, the first camera 41 and the second camera 42 are turned off to complete the data acquisition process, and the data analysis of the next step is performed. In the whole experiment process, the measuring system works in real time and is used for analyzing the temperature change of the whole process and recording the flame radiation feedback change, and the two high-definition cameras shoot the whole combustion process.

Thus, the water running fire simulator 100 in the present application has multiple functions: the method is used for researching the diffusion rule of the oil product on the water surface under the condition of no ignition, estimating the oil film thickness and developing a diffusion model of the oil product on the water surface; the method is used for researching the influence of the leakage rate and the delayed ignition time on the combustion characteristic of the flowing fire on water under the ignition condition, predicting the maximum combustion area of the flowing fire on water and providing a theoretical basis for the rescue work of the fire accident of the flowing fire on water; the device is used for comparing the diffusion rule under the ignition condition and the non-ignition condition and researching the influence of combustion on the oil diffusion process; the device is used for researching the heat transfer rule between oil-water interfaces, measuring flame temperature, oil product temperature and water cushion temperature change through a thermocouple, collecting flame radiation feedback through a heat flow meter, quantitatively calculating heat loss of an oil layer, and developing a flowing fire combustion rate model and a heat transfer model; and a basic model can be provided for developing a general flowing fire experiment, and the method is used for the comparative study of the oil pool fire and the flowing fire.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.