Experimental simulation device and method for three-dimensional inclination angle controllable flow fire in restricted space

Abstract

The invention discloses an experimental simulation device and method for a three-dimensional inclination angle controllable flowing fire in a limited space. The device comprises a confined space model, a flowing system, a moving system and a lifting system. The moving system comprises a first platform, a moving driving mechanism and a distance measuring instrument. The lifting system comprises a second platform, a lifting driving mechanism and an angle measuring mechanism. The experiment simulation device controls the movement driving mechanism to drive the first platform to move transversely and / or longitudinally in the limited space model until the displacement reaches a preset distance, and controls the lifting driving mechanism to drive the second platform to ascend and descend transversely and / or longitudinally until the inclination angle reaches a preset angle. And enabling the flow groove structure to be located at an experiment position in the limited space model. According to the invention, the experiment accuracy is high, important information about the spreading and combustion rule of the flowing fire in the tunnel can be obtained, the experiment efficiency is improved, the reliability and repeatability of the experiment result are ensured, and the method is easier to widely use.

Description

Technical Field

[0001] The present invention relates to an experimental simulation device in the technical field of fire experiments, in particular to an experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space, and also relates to an experimental simulation method for three-dimensional inclination controllable flowing fire in a confined space. Background Art

[0002] Oil spill fire is a relatively common scenario in fire accidents. If an oil spill fire occurs in a tunnel, its continuously changing combustion area will cause a chain effect and expand the consequences of the accident, which will pose greater challenges to personnel evacuation and rescue. Therefore, it is of great practical significance to carry out research on the spread and combustion characteristics of tunnel oil spill fire.

[0003] Confined spaces are usually tunnels of different shapes, including circular, arched (horseshoe-shaped), and rectangular. In actual fires, when the flame flows and spreads, it does not flow horizontally without an angle. Generally, the flowing fire is affected by the uneven road surface, and the longitudinal and transverse inclination angles will affect parameters such as the flame propagation speed. However, the existing fire experimental simulation devices can only perform simple fire simulations, and it is difficult to accurately simulate the actual flowing and spreading situation of oil spill fire in confined spaces such as tunnels, and it is impossible to study the characteristics of downstream and upstream flowing fires.

[0004] e Summary of the Invention

[0005] To solve the technical problem that the existing fire experimental simulation devices are difficult to accurately simulate the actual flowing and spreading situation of oil spill fire in confined spaces such as tunnels and cannot study the characteristics of downstream and upstream flowing fires, the present invention provides an experimental simulation device and method for three-dimensional inclination controllable flowing fire in a confined space.

[0006] The present invention is implemented by the following technical solutions: An experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space, which includes:

[0007] A confined space model;

[0008] A flowing system, which includes a flowing trough structure for the flame to flow in the fire simulation experiment;

[0009] A moving system, which includes a first platform, a moving drive mechanism, and a rangefinder; the first platform is located in the confined space model; the rangefinder is installed on the first platform and is used to detect the displacement of the first platform in the confined space model;

[0010] A lifting system, which includes a second platform, a lifting drive mechanism, and an angle measuring mechanism; the flowing trough structure, the lifting drive mechanism, and the angle measuring mechanism are all installed on the second platform; the angle measuring mechanism is used to detect the inclination angle of the second platform relative to the first platform;

[0011] Among them, the experimental simulation device controls the mobile driving mechanism to drive the first platform to move horizontally and / or longitudinally in the confined space model until the displacement reaches a preset distance, and controls the lifting driving mechanism to drive the second platform to lift horizontally and / or longitudinally until the tilt angle reaches a preset angle, so that the flowing trough structure is in the experimental position in the confined space model.

[0012] The present invention uses a mobile system and a lifting system, and uses a rangefinder and an angle measuring mechanism to detect the displacement of the movement and the tilt angle. Finally, the flowing trough structure is moved to a specified position and at an inclination angle required for the experiment, realizing a three-dimensional inclination angle controllable fire experiment simulation in a confined space, solving the technical problems that the existing fire experiment simulation device is difficult to accurately simulate the actual flowing and spreading situation of oil spill fires in confined spaces such as tunnels and cannot study the characteristics of downstream and upstream flowing fires. The experiment has high accuracy, and important information about the spread and combustion law of tunnel flowing fires can be obtained, which is of great significance for improving tunnel safety design and formulating more effective emergency response strategies. At the same time, the experiment efficiency is improved, and the reliability and repeatability of the experimental results are ensured, making it more easily and widely adopted.

[0013] As a further improvement of the above solution, the mobile driving mechanism includes at least four supporting universal wheels and at least two electric universal wheels; four of the supporting universal wheels are respectively installed at the four corners of the first platform; at least two electric universal wheels are installed on the first platform, one of the electric universal wheels is located between two supporting universal wheels on the same side, and the other electric universal wheel is located between two supporting universal wheels on the other side; the mobile driving mechanism changes the moving direction of the first platform by driving the electric universal wheels to rotate the wheel direction.

[0014] As a further improvement of the above solution, the lifting driving mechanism includes four lifting driving members; the same ends of the four lifting driving members are installed on the first platform, and the other ends are movable ends and abut against the four corners of the second platform.

[0015] As a further improvement of the above solution, the confined space model includes a frame, a bottom plate, a top plate, three stainless steel side plates, a glass side plate, and four supporting feet; the tops of the four supporting feet are respectively fixed at the four corners of the frame; the bottom plate is installed on the bottom surface of the frame, the top plate is installed on the top surface of the frame, and the four side plates are respectively installed on the four side surfaces of the frame.

[0016] As a further improvement of the above solution, the flowing system further includes a V-shaped overflow trough structure and a circular interface; the open end of the overflow trough structure is connected to one end of the flowing trough structure, and the interface is connected to the narrow end of the overflow trough structure.

[0017] Furthermore, the experimental simulation device further includes:

[0018] An oil supply system, which includes a peristaltic pump, an electronic balance, a U-shaped stainless steel pipe, a sediment head, at least two hoses, and an oil barrel; one end of one hose is connected to the interface, and the other end is connected to the peristaltic pump; one end of the other hose is connected to the peristaltic pump, and the other end passes through the stainless steel pipe and is inserted into the oil barrel; the oil barrel is placed on the electronic balance, and the sediment head is used to separate the oil in the oil barrel.

[0019] As a further improvement of the above solution, the angle measuring machine includes at least two angle measuring instruments installed on the second platform, and the two angle measuring instruments are respectively used to detect the lateral tilt angle and the longitudinal tilt angle of the second platform relative to the first platform.

[0020] Furthermore, the electric universal wheel includes a double-wheel structure and an electrically driven rotating end; the top end of the rotating end is fixed on the bottom surface of the first platform, and the bottom end is fixedly connected to the double-wheel structure.

[0021] Furthermore, the top plate is a detachable semi-cylindrical cover plate and is connected to one of the side plates through a plurality of buckles; the bottom plate, the top plate, and the four side plates are all inlaid with heat insulation cotton.

[0022] The present invention also provides an experimental simulation method for three-dimensional inclination angle controllable flowing fire in a confined space, which applies any one of the above experimental simulation devices for three-dimensional inclination angle controllable flowing fire in a confined space, and includes the following steps:

[0023] Detect the displacement of the first platform in the confined space model;

[0024] Detect the tilt angle of the second platform relative to the first platform;

[0025] According to the experimental parameter setting, control the mobile driving mechanism to drive the first platform to move horizontally and / or longitudinally in the confined space model until the displacement reaches a preset distance, and control the lifting driving mechanism to drive the second platform to lift horizontally and / or longitudinally until the tilt angle reaches a preset angle, so that the flowing groove structure is in the experimental position in the confined space model.

[0026] Compared with the existing fire experimental simulation device, the experimental simulation device and method for three-dimensional inclination angle controllable flowing fire in a confined space of the present invention have the following beneficial effects:

[0027] 1. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can, through a moving system and a lifting system, detect the displacement during movement and the inclination angle by using a rangefinder and an angle measuring mechanism, and finally move the flowing trough structure to a designated position and at an inclination angle required for the experiment, so as to realize the experimental simulation of three-dimensional inclination angle controllable fire in a confined space, solve the technical problems that existing fire experimental simulation devices are difficult to accurately simulate the actual flowing and spreading situation of oil spill fire in confined spaces such as tunnels and cannot study the characteristics of downstream and upstream flowing fires. The experiment has high accuracy, can obtain important information about the spread and combustion laws of tunnel flowing fire, which is of great significance for improving tunnel safety design and formulating more effective emergency response strategies. At the same time, it improves the experimental efficiency, ensures the reliability and repeatability of experimental results, and makes it more widely adopted.

[0028] 2. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can adjust the height of the experimental flowing trough, while the height of ordinary experimental simulation devices cannot be changed. In actual fires, due to the obvious difference in the starting height of the flame when large vehicles and small vehicles catch fire, in a confined space, the top restriction effect will vary with the different starting heights of the flame, and ordinary simulation devices cannot study this, while this experimental simulation device can achieve this, making the experiment closer to the actual fire situation and the experimental results more accurate.

[0029] 3. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can adjust the transverse and longitudinal angles of the experimental flowing trough, which is more in line with the changing trend of flowing fire in actual fires. In actual fires, when the flame flows and spreads, it does not flow horizontally without an angle. Generally, the flowing fire is affected by the uneven road surface, and the longitudinal and transverse inclination angles will affect parameters such as the flame propagation speed. This experimental simulation device can adjust the lifting height to change the inclination angle of the flowing trough. At the same time, when there are longitudinal and transverse inclination angles, changing the ignition position can study the characteristics of downstream and upstream flowing fires.

[0030] 4. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can conveniently adjust the position of the flowing trough in the horizontal plane by using two electric universal wheels, and the structure is simple.

[0031] 5. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space is equipped with a controllable flowing system. This ensures a stable fuel supply during the experiment, and at the same time can control the type and supply rate of the fuel. The peristaltic pump sucks the fuel, the power of the pump can be changed, and the influence of different fuels on fire behavior can also be studied. Description of the Drawings

[0032] Figure 1Schematic diagram of the structure of the confined space model of the experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 1 of the present invention;

[0033] Figure 2 Schematic diagram of the structure of the moving system of the experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 1 of the present invention;

[0034] Figure 3 Schematic diagram of the structure of the lifting system of the experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 1 of the present invention;

[0035] Figure 4 Schematic diagram of the structure of the oil supply system and the flowing system of the experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 1 of the present invention;

[0036] Figure 5 Flow chart of the experimental simulation method for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 3 of the present invention.

[0037] Symbol description:

[0038] 1 Frame 12 Rangefinder

[0039] 2 Bottom plate 13 Second platform

[0040] 3 Top plate 14 Lifting driving member

[0041] 4 Stainless steel side plate 15 Angle measuring instrument

[0042] 5 Glass side plate 16 Overflow tank structure

[0043] 6 Support feet 17 Interface

[0044] 7 Buckle 18 Peristaltic pump

[0045] 8 Flowing trough structure 19 Electronic balance

[0046] 9 First platform 20 Stainless steel pipe

[0047] 10 Support universal wheel 21 Hose

[0048] 11 Electric universal wheel 22 Oil barrel Detailed implementation manners

[0049] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0050] Embodiment 1

[0051] Please refer to Figures 1-4 In this embodiment, an experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space is provided. This experimental simulation device can simulate the flowing fire in a confined space. Among them, the confined space is usually tunnels with different shapes, and the tunnel shape can be circular, arched (horseshoe-shaped), rectangular, etc. In this embodiment, the experimental simulation device includes a confined space model, a flowing system, a moving system, and a lifting system, and may also include an oil supply system.

[0052] Please continue to refer to Figure 1 The confined space model is a structural simulation of the real confined space, using a similar spatial structure to simulate the real structure. In this embodiment, the confined space model includes a frame 1, a bottom plate 2, a top plate 3, three stainless steel side plates 4, a glass side plate 5, and four support feet 6. The tops of the four support feet 6 are respectively fixed at the four corners of the frame 1. The bottom plate 2 is installed on the bottom surface of the frame 1, the top plate 3 is installed on the top surface of the frame 1, and the four side plates are respectively installed on the four side surfaces of the frame 1. The top plate 3 is a detachable semi-cylindrical cover plate and is connected to one of the side plates through a plurality of buckles 7. The bottom plate 2, the top plate 3, and the four side plates are all inlaid with heat insulation cotton.

[0053] In this embodiment, in order to better observe and record the entire experimental process, the front of the confined space model uses a 10 cm thick high-temperature resistant, fireproof, and explosion-proof transparent glass. The rest uses stainless steel materials to build an experimental device frame 1 with a length of 4.0 m, a width of 1.5 m, and a height of 0.8 m. At the same time, the side walls, ceiling, and bottom plate 2 are all composed of 20 mm thick fireproof boards, and heat insulation cotton is inlaid inside to prevent heat dissipation. In addition, 50 cm support feet 6 are installed at the four corners of the bottom of the frame 1 to ensure the stability and safety of the device.

[0054] The flowing system includes a flowing groove structure 8, and in this embodiment, it also includes an overflow groove structure 16 and an interface 17. The flowing groove structure 8 is used for the flame to flow during the fire simulation experiment. The overflow groove structure 16 is in a V shape, and the interface 17 is circular. The open end of the overflow groove structure 16 is connected to one end of the flowing groove structure 8, and the interface 17 is connected to the narrow end of the overflow groove structure 16. A flowing groove is opened on the flowing groove structure 8, and an overflow groove is opened on the overflow groove structure 16.

[0055] Please continue to refer to Figure 2, the mobile system includes a first platform 9, a mobile drive mechanism, and a rangefinder 12. The first platform 9 is located in the confined space model. The rangefinder 12 is mounted on the first platform 9 and is used to detect the displacement of the first platform 9 in the confined space model. In this embodiment, the mobile drive mechanism includes support universal wheels 10 and electric universal wheels 11. The number of support universal wheels 10 is at least four, and the number of electric universal wheels 11 is at least two. Four of the support universal wheels 10 are respectively mounted on the four corners of the first platform 9. At least two electric universal wheels 11 are mounted on the first platform 9. One of the electric universal wheels 11 is located between two support universal wheels 10 on the same side, and the other electric universal wheel 11 is located between two support universal wheels 10 on the other side. The mobile drive mechanism changes the moving direction of the first platform 9 by driving the electric universal wheels 11 to rotate the wheel direction. Specifically, the electric universal wheel 11 includes a double-wheel structure and an electrically driven rotating end. The top end of the rotating end is fixed to the bottom surface of the first platform 9, and the bottom end is fixedly connected to the double-wheel structure.

[0056] In this embodiment, for example, the first platform 9 is a platform with a length of 1.5 m, a width of 0.6 m, and a height of 0.3 m. The four support universal wheels 10 play a role in stabilizing the movement. The two electric universal wheels are respectively located in the middle positions between the No. 1 and No. 4 (defining the No. 1 universal wheel as the left front universal wheel and the No. 4 universal wheel as the left rear universal wheel) and the No. 2 and No. 3 universal wheels (defining the No. 2 universal wheel as the right front universal wheel and the No. 3 universal wheel as the right rear universal wheel) and can rotate electrically 360 degrees. When the flow channel structure 8 needs to move longitudinally, first rotate the two electric universal wheels 11 so that the wheel direction is longitudinal, and then drive the electric universal wheels 11 to the preset longitudinal position. Similarly, if the flow channel structure 8 needs to move horizontally, first rotate the electric universal wheels 11 to be horizontal, and then drive the electric universal wheels 11 to the designated position. Through the above process, the purpose of facilitating the operation of the flow channel structure 8 to move in the two-dimensional plane can be achieved. At the same time, since the height of the flow channel structure 8 can be controlled, the purpose of moving the flow channel structure 8 in the three-dimensional space is achieved.

[0057] Please continue to refer to Figure 3 , the lifting system includes a second platform 13, a lifting drive mechanism, and an angle measuring mechanism. The flow channel structure 8, the lifting drive mechanism, and the angle measuring mechanism are all mounted on the second platform 13. The angle measuring mechanism is used to detect the inclination angle of the second platform 13 relative to the first platform 9. In this embodiment, the lifting drive mechanism includes four lifting drive members 14. The same ends of the four lifting drive members 14 are mounted on the first platform 9, and the other ends are movable ends and abut against the four corners of the second platform 13. The angle measuring machine includes angle measuring instruments 15. The number of angle measuring instruments 15 is at least two, and the angle measuring instruments 15 are mounted on the second platform 13. Two of the angle measuring instruments 15 are respectively used to detect the horizontal inclination angle and the longitudinal inclination angle of the second platform 13 relative to the first platform 9.

[0058] In this embodiment, the lifting drive member 14 is a lifting stepper motor. To change the height of the flow channel and simulate the experimental scenario of the flame at different distances from the top plate 3, the device uses four identical stepper motors that can work independently. Start the four stepper motors simultaneously to slowly lift the flow channel platform to the preset height. In an actual fire, the running fire is affected by the uneven road surface. To more comprehensively simulate the actual situation, the device proposes to adjust the tilt angle of the flow channel horizontally and vertically respectively. By finely adjusting the lifting and lowering heights of the 1st and 4th stepper motors (defining the motor in the front left in the figure as the 1st stepper motor and the motor in the left rear as the 4th stepper motor), the flow channel is tilted longitudinally. By observing the feedback of the corresponding micro angle measuring instrument 15, slowly change the 1st and 4th stepper motors until the preset tilt angle is reached, and at the same time pay attention to the other micro angle measuring instrument 15 to keep it at 0 angle, so as to achieve the effect of unidirectional longitudinal adjustment of the tilt angle of the flow channel. Similarly, by finely adjusting the lifting and lowering heights of the 1st and 2nd stepper motors (defining the motor in the front right as the 2nd stepper motor), the flow channel is tilted horizontally. By observing the feedback of the corresponding micro angle measuring instrument 15, slowly change the 1st and 2nd stepper motors until the preset tilt angle is reached, and at the same time pay attention to the other angle measuring instrument 15 to keep it at 0 angle, so as to achieve the effect of unidirectional horizontal adjustment of the tilt angle of the flow channel.

[0059] Please continue to refer to Figure 4 , the fuel supply system includes a peristaltic pump 18, an electronic balance 19, a U-shaped stainless steel pipe 20, a sediment head, a hose 21 and an oil barrel 22. One end of one hose 21 is connected to the interface 17, and the other end is connected to the peristaltic pump 18. The number of hoses 21 is at least two. One end of the other hose 21 is connected to the peristaltic pump 18, and the other end passes through the stainless steel pipe 20 and is inserted into the oil barrel 22. The oil barrel 22 is placed on the electronic balance, and the sediment head is used to separate the oil in the oil barrel 22.

[0060] The experimental simulation device controls the mobile drive mechanism to drive the first platform 9 to move horizontally and / or vertically in the confined space model until the displacement reaches the preset distance, and controls the lifting drive mechanism to drive the second platform 13 to lift horizontally and / or vertically until the tilt angle reaches the preset angle, so that the flow channel structure 8 is in the experimental position in the confined space model.

[0061] In summary, compared with the existing fire experiment simulation device, the experimental simulation device for three-dimensional inclination angle controllable running fire in a confined space of the present invention has the following beneficial effects:

[0062] 1. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space, which uses a moving system and a lifting system, and detects the displacement of movement and the inclination angle by using a rangefinder 12 and an angle measuring mechanism. Finally, the flowing trough structure 8 is moved to a specified position and at an inclination angle required for the experiment, realizing the experimental simulation of three-dimensional inclination angle controllable fire in a confined space, solving the technical problems that the existing fire experimental simulation devices are difficult to accurately simulate the actual flowing and spreading situation of oil spill fire in confined spaces such as tunnels and cannot study the characteristics of downstream and upstream flowing fires. The experimental accuracy is high, and important information about the spread and combustion laws of tunnel flowing fire can be obtained, which is of great significance for improving tunnel safety design and formulating more effective emergency response strategies. At the same time, the experimental efficiency is improved, and the reliability and repeatability of the experimental results are ensured, making it easier to be widely adopted.

[0063] 2. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can adjust the height of the experimental flowing trough, while the height of the ordinary experimental simulation device cannot be changed. In actual fires, when large vehicles and small vehicles catch fire, the starting height of the flame is significantly different. In a confined space, the top restriction effect will vary due to the different starting heights of the flame, and ordinary simulation devices cannot study this, while this experimental simulation device can achieve it, making the experiment closer to the actual fire situation and the experimental results more accurate.

[0064] 3. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can adjust the horizontal and longitudinal angles of the experimental flowing trough, which is more in line with the changing trend of flowing fire in actual fires. In actual fires, when the flame flows and spreads, it does not flow horizontally without an angle. Generally, the flowing fire is affected by the uneven road surface, and the longitudinal and transverse inclination angles will affect parameters such as the flame propagation speed. This experimental simulation device can adjust the lifting height to change the inclination angle of the flowing trough. At the same time, when there are longitudinal and transverse inclination angles, changing the ignition position can study the characteristics of downstream and upstream flowing fires.

[0065] 4. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space can conveniently adjust the position of the flowing trough in the horizontal plane by using two electric universal wheels 11, and the structure is simple.

[0066] 5. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space is equipped with a controllable flowing system. This ensures a stable fuel supply during the experiment, and at the same time, the type and supply rate of the fuel can be controlled. The peristaltic pump 18 sucks the fuel, the power of the pump can be changed, and the influence of different fuels on fire behavior can also be studied.

[0067] Example 2

[0068] This embodiment provides an experimental simulation method for three-dimensional inclination controllable flowing fire in a confined space, and this method applies the experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 1. Among them, the experimental simulation method includes the following steps.

[0069] (1) Detect the displacement of the first platform 9 in the confined space model. This step can be achieved through the moving system, and here continuous real-time detection can be carried out.

[0070] (2) Detect the inclination angle of the second platform 13 relative to the first platform 9. This step can be achieved through the lifting system, and here continuous real-time detection can be carried out.

[0071] (3) According to the experimental parameter setting, control the moving drive mechanism to drive the first platform 9 to move horizontally and / or longitudinally in the confined space model until the displacement reaches the preset distance, and control the lifting drive mechanism to drive the second platform 13 to lift horizontally and / or longitudinally until the inclination angle reaches the preset angle, so that the flowing trough structure 8 is in the experimental position in the confined space model.

[0072] Embodiment 3

[0073] Please refer to Figure 5 , this embodiment provides an experimental simulation method for three-dimensional inclination controllable flowing fire in a confined space, and this method applies the experimental simulation device for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 1. Among them, the experimental simulation method includes the following steps.

[0074] Step 1. Adjust the moving distance:

[0075] (1.1) The No. 1 and No. 2 electric universal wheels 11 (also known as double-wheel electric universal wheels, double-wheel universal wheels) rotate to the horizontal state;

[0076] (1.2) According to the data fed back by the rangefinder 12, horizontally move to adjust the distance between the first platform 9 and the side wall to reach the preset distance;

[0077] (1.3) Rotate the No. 1 and No. 2 electric universal wheels 11 to the longitudinal state and move the first platform 9 to the designated position;

[0078] Step 2. Adjust the inclination angle:

[0079] (2.1) Set the lifting height of the No. 1 - 4 stepping motors to make the second platform 13 reach the preset height;

[0080] (2.2) Adjust the lifting height of the No. 1 and No. 4 stepping motors to make the second platform 13 longitudinally tilt at the preset angle;

[0081] (2.3) Adjust the lifting heights of the No. 1 and No. 2 stepper motors to make the second platform 13 tilt horizontally at a preset angle;

[0082] (2.4) Determine that the second platform 13 reaches the required angle and height according to the detection data fed back by the angle measuring instrument 15 and the distance measuring instrument 12;

[0083] Step 3: When the three-dimensional position and the horizontal and longitudinal inclination angles of the second platform 13 in the confined space reach the preset states, turn on the peristaltic pump 18 and the electronic balance 19 to conduct an experiment, that is, pump the oil through the hose 21 into the flow trough.

[0084] It should be noted here that Steps 1 and 2 have no sequence priority and can be determined according to needs.

[0085] Embodiment 4

[0086] This embodiment provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the steps of the experimental simulation method for three-dimensional inclination angle controllable flowing fire in a confined space in Embodiment 2 or Embodiment 3.

[0087] When the method in Embodiment 2 or Embodiment 3 is applied, it can be applied in the form of software, such as designed as an independently running program and installed on a computer device. The computer device can be a computer, a smart phone, a control system, and other Internet of Things devices, etc. The method in Embodiment 2 or Embodiment 3 can also be designed as an embedded running program and installed on a computer device, such as installed on a single-chip microcomputer.

[0088] The computer device can adopt various forms. It can either adopt an embedded chip or module, or adopt a general-purpose data processing device, such as an intelligent terminal capable of executing programs, a tablet computer, a notebook computer, a desktop computer, a rack-mounted server, a blade server, a tower server, or a cabinet server (including an independent server, or a server cluster composed of multiple servers), etc.

[0089] The computer device in this embodiment at least includes but is not limited to: a memory and a processor that can communicate with each other through a system bus. The memory (i.e., a readable storage medium) includes a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disc, etc. In some embodiments, the memory can be an internal storage unit of the computer device, such as the hard disk or memory of the computer device.

[0090] In some other embodiments, the memory can also be an external storage device of the computer device, such as a plug-in hard disk equipped on the computer device, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. Of course, the memory can also include both the internal storage unit of the computer device and its external storage devices. In this embodiment, the memory is generally used to store the operating system installed on the computer device and various application software, etc. In addition, the memory can also be used to temporarily store various data that have been output or will be output.

[0091] In some embodiments, the processor can be a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a controller, a microcontroller, a microprocessor, or other data processing chips. The processor is generally used to control the overall operation of the computer device. In this embodiment, the processor is used to run the program code stored in the memory or process data.

[0092] Embodiment 5

[0093] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by the processor, the steps of the experimental simulation method for three-dimensional inclination controllable flowing fire in a confined space in Embodiment 2 or Embodiment 3 are implemented.

[0094] When the method in Embodiment 2 or Embodiment 3 is applied, it can be applied in the form of software, such as designed as a program that can run independently on a computer-readable storage medium. The computer-readable storage medium can be a USB flash drive, designed as a USB key, and designed as a program that starts the whole method through external triggering through the USB flash drive.

[0095] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space, characterized in that, It includes: A confined space model; A flowing system, which includes a flowing groove structure for the flame to flow in the fire simulation experiment; A moving system, which includes a first platform, a moving driving mechanism and a rangefinder; the first platform is located in the confined space model; The rangefinder is installed on the first platform and is used to detect the displacement of the first platform in the confined space model; A lifting system, which includes a second platform, a lifting driving mechanism and an angle measuring mechanism; the flowing groove structure, the lifting driving mechanism and the angle measuring mechanism are all installed on the second platform; the angle measuring mechanism is used to detect the tilt angle of the second platform relative to the first platform; Wherein, the experimental simulation device controls the moving driving mechanism to drive the first platform to move horizontally and / or longitudinally in the confined space model until the displacement reaches a preset distance, and controls the lifting driving mechanism to drive the second platform to lift horizontally and / or longitudinally until the tilt angle reaches a preset angle, so that the flowing groove structure is in the experimental position in the confined space model.

2. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 1, characterized in that The moving driving mechanism includes at least four supporting universal wheels and at least two electric universal wheels; four of the supporting universal wheels are respectively installed at the four corners of the first platform; at least two electric universal wheels are installed on the first platform, one of the electric universal wheels is located between two supporting universal wheels on the same side, and the other electric universal wheel is located between two supporting universal wheels on the other side; the moving driving mechanism changes the moving direction of the first platform by driving the electric universal wheels to rotate the wheel direction.

3. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 1, characterized in that, The lifting driving mechanism includes four lifting driving members; the same ends of the four lifting driving members are installed on the first platform, and the same other ends are movable ends and abut against the four corners of the second platform.

4. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 1, characterized in that, The confined space model includes a frame, a bottom plate, a top plate, three stainless steel side plates, a glass side plate and four supporting feet; the tops of the four supporting feet are respectively fixed at the four corners of the frame; the bottom plate is installed on the bottom surface of the frame, the top plate is installed on the top surface of the frame, and the four side plates are respectively installed on the four side surfaces of the frame.

5. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 1, characterized in that, The flowing system further includes a V-shaped overflow groove structure and a circular interface; the open end of the overflow groove structure is connected to one end of the flowing groove structure, and the interface is connected to the narrow end of the overflow groove structure.

6. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 5, characterized in that, The experimental simulation device further includes: An oil supply system, which includes a peristaltic pump, an electronic balance, a U-shaped stainless steel pipe, a sediment head, at least two hoses and an oil barrel; one end of one hose is connected to the interface, and the other end is connected to the peristaltic pump; one end of the other hose is connected to the peristaltic pump, and the other end passes through the stainless steel pipe and is inserted into the oil barrel; the oil barrel is placed on the electronic balance, and the sediment head is used to separate the oil liquid in the oil barrel.

7. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 1, characterized in that, The angle measuring machine includes at least two angle measuring instruments installed on the second platform, and the two angle measuring instruments are respectively used to detect the horizontal tilt angle and the longitudinal tilt angle of the second platform relative to the first platform.

8. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 2, characterized in that, The electric universal wheel includes a double-wheel structure and an electrically driven rotating end; the top end of the rotating end is fixed on the bottom surface of the first platform, and the bottom end is fixedly connected to the double-wheel structure.

9. The experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space according to claim 4, characterized in that, The top plate is a detachable semi-cylindrical cover plate and is connected to one of the side plates through a plurality of buckles; the bottom plate, the top plate and the four side plates are all inlaid with heat insulation cotton.

10. An experimental simulation method for three-dimensional inclination angle controllable flowing fire in a confined space, characterized in that, Applying the experimental simulation device for three-dimensional inclination angle controllable flowing fire in a confined space as described in any one of claims 1-9, which includes the following steps: Detect the displacement of the first platform in the confined space model; Detect the inclination angle of the second platform relative to the first platform; According to the experimental parameter setting, control the mobile driving mechanism to drive the first platform to move horizontally and / or longitudinally in the confined space model until the displacement reaches a preset distance, and control the lifting driving mechanism to drive the second platform to lift horizontally and / or longitudinally until the inclination angle reaches a preset angle, so that the flowing groove structure is in the experimental position in the confined space model.

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