Gas cylinder toppling blowout prevention test experiment platform and test method

Abstract

The invention discloses a gas cylinder toppling blowout prevention test experiment platform and a test method, and relates to the field of pressure vessel safety test, the gas cylinder toppling blowout prevention test experiment platform comprises a test gas cylinder, a gas source supply system, a toppling angle control system, a gas cylinder fixing system and a data acquisition system, and the test gas cylinder is installed on the toppling angle control system through the gas cylinder fixing system; the dumping angle control system comprises an inclined platform, a sliding rail mechanism and an angle adjusting device, the inclined platform comprises a supporting plate and a base which are hinged to each other, the sliding rail mechanism is connected to the middle of the back face of the supporting plate and comprises a connecting rod and a horizontal guide rail, and the upper end of the connecting rod is hinged to the supporting plate while the lower end is provided with a sliding rod; the horizontal guide rails are arranged on the two sides of the base, the sliding rods are slidably arranged in the horizontal guide rails in a sleeved mode, and the angle adjusting device is used for adjusting and monitoring the angle of the inclined platform. The test repeatability is high, the real toppling working condition of a gas cylinder can be simulated, continuous and accurate adjustment and control of the toppling angle are guaranteed, and therefore effective testing of the gas cylinder blowout preventer is achieved.

Description

Technical Field

[0001] This invention belongs to the field of pressure vessel safety testing, specifically relating to a test platform and test method for preventing gas cylinder tipping and blowout. Background Technology

[0002] As critical equipment for the storage and transportation of compressed gases, the safety of gas cylinders directly impacts the safety of life and property in various fields, including industrial production, medical emergency response, and energy and chemical industries. During actual transportation, handling, and use, gas cylinders may tip over due to accidental collisions, operational errors, or sudden environmental changes. If tipping causes the cylinder valve to break or become damaged, the high-pressure gas inside (especially liquefied gases) will be ejected at high speed from the rupture point under the influence of pressure difference and gravity, generating tremendous impact force and a potential explosion risk, which can easily lead to serious safety accidents.

[0003] To mitigate such risks, the industry has gradually adopted blowout preventers (BOPs) for gas cylinders, which aim to limit the instantaneous flow of gas after valve rupture through internal structural design. However, how to scientifically and accurately evaluate the effectiveness of BOPs has become a technical bottleneck in the industry. Traditional testing methods often rely on manual pouring or simple mechanical turning, which have significant shortcomings. 1. Low angle control precision and poor repeatability: Manual operation makes it difficult to accurately control the starting angle, movement speed and ending angle of the tilt, resulting in inconsistent test conditions and inability to effectively compare test results; 2. Data acquisition is unsystematic and inaccurate: It relies heavily on visual observation or simple instrument readings, and cannot record instantaneous flow changes during the injection process in real time and continuously. Key parameters such as peak flow and flow change rate are difficult to obtain accurately. 3. Low level of testing safety and standardization: Manual operation exposes users to potential spray risks at close range, and there is a lack of unified testing procedures and evaluation standards, resulting in insufficient reliability and comparability of test results.

[0004] Therefore, there is an urgent need to develop a standardized testing platform and testing method that can accurately simulate the gas cylinder tipping process, achieve adjustable and controllable angles, monitor flow parameters in real time, and operate safely and reliably, so as to scientifically evaluate the protective performance of blowout preventers and provide technical support for product optimization and safety standard setting. Summary of the Invention

[0005] In view of this, the present invention aims to provide a gas cylinder tipping blowout prevention test platform and test method with reasonable structure, safe operation and accurate data, so as to solve the problems of inaccurate angle control, unsystematic data acquisition and poor test repeatability in the existing test technology, and apply it to the test experiment of gas cylinder blowout prevention device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A test platform for preventing spillage from a gas cylinder during tipping includes a test gas cylinder, a gas supply system, a tipping angle control system, a gas cylinder fixing system, and a data acquisition system. The test gas cylinder is a double-opening cylinder, mounted on the tipping angle control system via the cylinder fixing system. The gas supply system provides a controllable pressure gas source to the test gas cylinder. The data acquisition system collects the total flow rate and real-time instantaneous flow rate of the test gas cylinder. The tipping angle control system includes a tilting platform, a slide rail mechanism, and an angle adjustment device. The tilting platform includes a support plate and a base. The bottom of the support plate is fixed to the base by a triangular plate hinge. The slide rail mechanism is connected to the middle of the back of the support plate. The slide rail mechanism includes a connecting rod and a horizontal guide rail. The upper end of the connecting rod is hinged to the support plate, and the lower end of the connecting rod is provided with a sliding rod. The horizontal guide rail is opened on both sides of the base. The sliding rod is slidably sleeved in the horizontal guide rail. The lower end of the connecting rod moves horizontally with the sliding rod. The angle adjustment device includes an angle gauge and a drive mechanism. The angle gauge is set on the front side of the support plate away from the base. The drive mechanism is used to drive the sliding rod to move in the horizontal guide rail.

[0007] Furthermore, the gas supply system includes a high-pressure gas cylinder, a pressure reducing valve, a pressure gauge, and a connecting pipeline. The high-pressure gas cylinder is a 40L nitrogen cylinder with an initial pressure of 20MPa. The high-pressure gas cylinder is connected to the connecting pipeline through the pressure reducing valve. The pressure gauge is installed on the pressure reducing valve. The other end of the connecting pipeline is connected to the inlet valve of the test gas cylinder.

[0008] Furthermore, the gas cylinder fixing system includes a large pressure ring, a small pressure ring, and fastening bolts mounted on a support plate. The large and small pressure rings are fixed to the support plate by the fastening bolts to accommodate test gas cylinders of different diameters. The inner walls of both the large and small pressure rings are provided with anti-slip rubber pads. The large pressure ring is used to fix the large-diameter cylinder body in the middle of the test gas cylinder, and the small pressure ring is used to fix the small-diameter nozzles at the valve connections at both ends of the test gas cylinder.

[0009] Furthermore, the data acquisition system includes an electronic flow meter, a data acquisition card, and a computer processing system. The electronic flow meter is connected to the outlet valve of the test gas cylinder to monitor the gas flow in real time. The data acquisition card converts the flow signal into a digital signal. The computer processing system receives the data and displays and stores the flow-time curve in real time.

[0010] Furthermore, the horizontal guide rail is equipped with a position scale, and the slide rod is equipped with a pointer for precisely controlling the displacement of the slide rod. The horizontal guide rail is also equipped with a buckle, which locks the slide rod after it moves along the horizontal guide rail to a designated position.

[0011] Furthermore, the base is equipped with shock-absorbing and anti-slip pads and leveling bolts at its bottom.

[0012] Furthermore, the angle measuring instrument is a digital display tilt electronic angle measuring instrument with magnetic attraction on all four sides, and the measuring angle range is 0-180°.

[0013] Furthermore, the support plate is made of carbon steel, and small iron pieces are embedded in the corners of the front of the support plate away from the base for magnetic fixation of the angle meter.

[0014] A test method based on the gas cylinder tipping and blowout prevention test platform according to claim 1 includes the following steps: Step 1, System preparation and installation: Move the slide bar to tilt the support plate to a horizontal position, install the test gas cylinder on the support plate, and fix it with large and small pressure rings and fastening bolts. After connecting the gas source to the pressure reducing valve, connect it to the inlet of the test gas cylinder through the connecting pipeline. Connect the outlet to the electronic flow meter, connect the electronic flow meter and the computer software, and check the sealing of each connection part. Step 2, initial state setting: Adjust the position of the slide bar through the drive mechanism to make the support plate vertical, open the air inlet valve of the test gas cylinder, close the air outlet valve, open the gas source valve, adjust the pressure reducing valve to fill the test gas cylinder with gas at the set pressure, close the gas source valve, close the air inlet valve of the test gas cylinder, and stabilize the pressure. Step 3: Perform the tilt test. Start the data acquisition system, open the outlet valve of the test gas cylinder, and control the slide bar to move quickly along the horizontal guide rail through the drive mechanism, so as to tilt the support plate and the test gas cylinder to the target angle at the set speed and maintain the target angle for the set time. Step 4, data acquisition and analysis: The data acquisition system records the gas flow rate changes in real time throughout the entire pouring process, plots the flow rate-time curve, and analyzes the maximum flow rate and the rate of flow rate change. Step 5: Result comparison. Replace the blowout preventer structure with different ones and install them into the test gas cylinder or adjust the test conditions. Repeat the above steps, compare the flow curves, and evaluate the effectiveness of the blowout preventer structure.

[0015] Compared with existing technologies, this invention constructs a safe, accurate, repeatable, and highly adaptable integrated testing platform through a precise angle control system, a reliable gas cylinder fixing scheme, closed-loop gas source pressure regulation, and automated data acquisition and analysis, achieving the following significant effects: 1. Achieves high-precision and repeatable control of the tilting angle: This invention combines a unique slide rail-slider-connecting rod mechanism with a horizontal guide rail equipped with a position scale to precisely convert the horizontal linear displacement of the slide rod into changes in the tilting angle of the support plate. The drive mechanism stably propels the slide rod, and with real-time feedback from the angle meter, the tilting angle can be continuously and accurately set within the range of 0-180°. It boasts high angle resolution and good repeatability, effectively reducing random angle errors caused by manual operation.

[0016] 2. A systematic and high-precision real-time data acquisition system has been constructed: This invention uses a high-response-speed electronic mass flow meter directly connected to the outlet of the test gas cylinder. Combined with a data acquisition card and a computer processing system, it can monitor and record the instantaneous gas flow rate during the pouring process in real time, automatically draw the flow-time curve, and accurately calculate key evaluation parameters such as the maximum jet flow rate, average flow rate, and flow rate change rate. This eliminates the error of manual recording and realizes the digitization and traceability of test data.

[0017] 3. Capable of realistically simulating various actual tipping conditions: The platform of this invention can pre-fill the test gas cylinder with gas at different pressures (adjustable from 0-3MPa) through the gas supply system to simulate the actual working internal pressure of the gas cylinder. Simultaneously, by controlling the movement speed of the drive mechanism, different tipping speeds (e.g., 10-30° / s) can be simulated, and any termination angle can be flexibly set, thereby reproducing a variety of possible accidental tipping scenarios. The test conditions are closer to reality, and the evaluation results are more valuable.

[0018] 4. Improved safety and convenience of testing operations: The test gas cylinders of this invention are securely fixed to the support plate by adjustable large and small pressure rings to prevent slippage during testing. The entire tilting process can be remotely or automatically controlled by the drive mechanism, eliminating the need for operators to have close contact with the gas cylinders at risk of spraying. The shock-absorbing and anti-slip pads equipped on the base further enhance the platform's stability and ensure testing safety.

[0019] 5. Enhanced platform adaptability and testing efficiency: The gas cylinder fixing system of this invention adopts an adjustable pressure ring and anti-slip rubber pad design, which can be compatible with clamping test gas cylinders of different diameters. The modular design makes the platform's functions easily expandable. After initial installation and fixing, a series of tests with multiple pressures, angles, and speeds can be quickly performed. The test conditions for each test are precisely controlled, and the data is highly comparable, greatly improving the efficiency of performance comparison and optimization testing of blowout preventers. Attached Figure Description

[0020] Figure 1 This is a front structural diagram of the experimental platform of the present invention; Figure 2 This is a schematic diagram of the inclined platform in a horizontal state (testing the tilted state of the gas cylinder); Figure 3 A schematic diagram of the inclined platform in its vertical state. Figure 4 A schematic diagram of a valve installed in a blowout preventer; Figure 5 This is a schematic diagram showing the location of the anti-spray device inside the bottle.

[0021] In the diagram: 1-Horizontal guide rail, 2-High-pressure gas cylinder, 3-Pressure reducing valve, 4-Stainless steel pipe, 5-Test gas cylinder, 6-Electronic flow meter, 7-Digital display tilt electronic angle measuring instrument, 8-Blowout preventer, 9-Outlet valve, 10-Inlet valve, 11-High-pressure gas cylinder valve, 12-Small pressure ring, 13-Large pressure ring, 14-Base, 15-Triangle plate, 16-Support plate, 17-Fastening bolt, 18-Connecting block, 19-Connecting rod, 20-Snap fastener, 21-Slide rod, 22-Baffle, 23-Base plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," "outer," and "one side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1

[0025] like Figure 1-5 As shown in the figure, this embodiment discloses a test platform for preventing gas cylinder tipping and blowout, including a test gas cylinder, a gas supply system, a tipping angle control system, a gas cylinder fixing system, and a data acquisition system.

[0026] In this embodiment, the test gas cylinder 5 is an 8L aluminum alloy double-opening gas cylinder. It is small in size and light in weight, which makes it easy to change the tilt angle of the support plate. The double opening facilitates gas filling and spraying experiments. An inlet valve 10 is installed at the bottom of the test gas cylinder, and an outlet valve 9 is installed at the top. Protective covers are provided at the valves connecting the nozzles at both ends of the test gas cylinder 5.

[0027] The gas supply system consists of a high-pressure gas cylinder 2, a high-pressure gas cylinder valve 11, a pressure reducing valve 3, and a stainless steel pipe 4. In this embodiment, the high-pressure gas cylinder 2 is a 40L high-pressure nitrogen gas cylinder. The high-pressure gas cylinder 2 is not equipped with a blowout preventer 8. It should be placed against the wall and secured to the wall with hinges. The outlet of the high-pressure gas cylinder 2 is connected to the stainless steel pipe 4 via the high-pressure gas cylinder valve 11 and the pressure reducing valve 3 (the connection between the stainless steel pipe 4 and the pressure reducing valve 3 requires an adapter). The other end of the stainless steel pipe 4 is connected to the inlet valve 10 of the test gas cylinder 5. By adjusting the pressure reducing valve 3 and controlling the outlet valve 9 and the inlet valve 10 of the test gas cylinder, compressed gas of 0-3MPa (adjustable range) can be filled into the test gas cylinder 5 to simulate the actual working pressure of the gas cylinder.

[0028] As a preferred embodiment of the present invention, the stainless steel pipe 4 is a 316L stainless steel high-pressure hose, which is different from ordinary pneumatic hoses. Its pressure resistance is up to 20MPa and its airtightness is better.

[0029] As a preferred embodiment of the present invention, an inlet and outlet pressure gauge is installed on the pressure reducing valve 3 to monitor the inlet and outlet pressure values ​​in real time.

[0030] The tilting angle control system includes a tilting platform, a slide rail mechanism, and an angle adjustment device. The tilting platform includes a base 14, a triangular plate 15, and a support plate 16. Baffles 22 are provided on both sides of the base 14, and a base plate 23 is provided at the bottom. The base plate 23 is provided with shock-absorbing and anti-slip pads and horizontal adjustment bolts. The bottom back of the support plate 16 is hinged to the base 14 through the triangular plate 15 and can rotate around the axis of the triangular plate 15. The slide rail mechanism includes a connecting rod 19 and a horizontal guide rail 1. The middle back of the support plate 16 is fixed to a connecting block 18. The connecting block 18 has multiple holes for bolting to the support plate 16 and the connecting rod 19. The upper end of the connecting rod 19 is connected to the connecting block 18, and its lower end is fixedly connected to a slide rod 21. The slide rod 21 is slidably sleeved on the horizontal guide rail 1. The horizontal guide rail 1 is set on the two side baffles 22, and its direction is perpendicular to the initial position of the support plate 16. The angle adjustment device includes an angle meter and a drive mechanism. The angle meter is a digital display tilt electronic angle measuring instrument, which is installed on one side of the front of the support plate 16 and can intuitively read the current tilt angle value. The drive mechanism is an electric push rod, a servo motor or a manual pusher. The drive mechanism can push the slide rod 21 to move horizontally along the horizontal guide rail 1. When the slide rod 21 moves, it drives the support plate 16 to rotate around the triangular plate 15 through the connecting rod 19, so as to realize the continuous change of angle.

[0031] As a preferred embodiment of the present invention, the horizontal guide rail 1 is provided with a position scale, and the slide rod 21 is provided with a pointer for precisely controlling the displacement of the slide rod 21. The horizontal guide rail 1 is also provided with a buckle 20, which can lock the position after the slide rod 21 moves along the horizontal guide rail 1 to a designated position.

[0032] As a preferred embodiment of the present invention, the angle meter 7 is a digital display tilt electronic angle measuring instrument with magnetic attraction on all four sides. The angle measurement range is 0-180° and the accuracy can reach 0.1°. The support plate 16 is made of carbon steel and the surface is sprayed with white paint. Small iron pieces are embedded in the corners of the front of the support plate 16 away from the base for magnetic fixation of the angle meter 7.

[0033] It should be noted that the side length of the connecting rod 19 is greater than 10mm to ensure that it can withstand the gravitational pressure of the support plate 16 and the test gas cylinder 5 without deformation or breakage.

[0034] The gas cylinder fixing system in this embodiment includes a large pressure ring 13 and a small pressure ring 12 installed on the support plate 16. They are fixed by fastening bolts 17 to form an adjustable clamping mechanism. The inner wall of the pressure ring is covered with a 1mm thick anti-slip rubber pad, which can not only firmly fix the test gas cylinder 5, but also avoid scratching the cylinder body.

[0035] It should be noted that the support plate 16 is equipped with two sets of pressure ring assemblies, which can accommodate gas cylinders with diameters of 80-300mm. The fastening bolts 17 of the large pressure ring 13 and the small pressure ring 12 are set to 80mm in length to ensure that they can accommodate the fixing of gas cylinders of various diameters.

[0036] The data acquisition system in this embodiment consists of an electronic flow meter 6, a data acquisition card, and computer software. The electronic flow meter 6 in this embodiment is a gas mass flow meter, capable of measuring only air, oxygen, and nitrogen, with a range of 0-400 L / min, an accuracy of ±1.5% FS, and a pressure resistance of 0.8 MPa. The electronic flow meter 6 is connected to the outlet valve 9 of the test gas cylinder 5 to monitor the gas mass flow rate in real time. The data acquisition card converts the analog signal from the flow meter into a digital signal and transmits it to the computer via a USB interface.

[0037] It should be noted that the computer runs the data acquisition and processing software equipped with the electronic flow meter 6, displays the flow curve in real time, and automatically calculates key parameters.

[0038] Example 2

[0039] This embodiment discloses a test method for the gas cylinder tilting anti-spray test experimental platform based on Embodiment 1, including the following steps: Step 1: Connect the blowout preventer 8 to the outlet valve 9 of the test gas cylinder via a threaded connection, ensuring that the blowout preventer 8 is installed inside the test gas cylinder 5 before it is fixed to the support plate 16. First, adjust the slide rod 21 to drive the connecting rod 19 to make the support plate 16 horizontal. Install the test gas cylinder 5 on the support plate 16, with the inlet valve 10 positioned at the lower part of the support plate 16 and the outlet valve 9 at the upper part. Adjust and tighten the large pressure ring 13 and the small pressure ring 12.

[0040] One end of the stainless steel pipe 4 is connected to the pressure reducing valve 3 on the high-pressure gas cylinder 2, and the other end is connected to the inlet valve 10 of the test gas cylinder. The outlet valve 9 of the test gas cylinder is connected to the electronic flow meter 6. The electronic flow meter 6 is connected to the computer in advance through the data acquisition card and the software is configured to monitor the flow changes in real time and check the sealing.

[0041] Step 2: Adjust the position of the slide bar 21 through the drive mechanism to make the support plate 16 vertical (0°), such as... Figure 3 As shown, open the inlet valve 10, close the outlet valve 9, adjust the pressure reducing valve 3, fill the test gas cylinder 5 with the set pressure gas, close the inlet valve 10, and stabilize for 30 seconds.

[0042] It should be noted that the pressure value inside the test gas cylinder 5 is displayed by the outlet pressure gauge on the pressure reducing valve 3.

[0043] Step 3: Start the data acquisition system, open the outlet valve 9 of the test gas cylinder 5, control the slide bar 21 to move it at a set speed (e.g., 15° / s) to tilt the support plate 16 to the target angle (e.g., 90°), maintain the target angle for 10 seconds, and at the same time, the data acquisition system continuously records the flow data, and then close the outlet valve 9.

[0044] Step 4: Data acquisition and analysis. The data acquisition system records the gas flow rate changes in real time throughout the entire pouring process, plots the flow rate-time curve, and analyzes the maximum flow rate and the rate of flow rate change.

[0045] Step 5: Replace the blowout preventer structure with different ones and install them into the test gas cylinder or adjust the test conditions. Repeat the above steps, compare the flow curves, and evaluate the effectiveness of the blowout preventer structure.

[0046] The experimental platform of this invention has been successfully applied to the effectiveness verification of various built-in blowout preventers 8. The test results show that the platform has precise angle control, good data repeatability, and can effectively distinguish the performance differences of different blowout preventers 8, providing a reliable testing method for the optimized design of blowout preventers 8.

[0047] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A test platform for preventing gas cylinder tipping and spraying, characterized in that, The system includes a test gas cylinder (5), a gas supply system, a tilting angle control system, a gas cylinder fixing system, and a data acquisition system. The test gas cylinder (5) is a double-opening gas cylinder. The test gas cylinder (5) is installed on the tilting angle control system through the gas cylinder fixing system. The gas supply system is used to provide a controllable pressure gas source for the test gas cylinder (5). The data acquisition system is used to collect the total flow rate and real-time instantaneous flow rate of the test gas cylinder (5). The tilting angle control system includes a tilting platform, a slide rail mechanism, and an angle adjustment device. The tilting platform includes a support plate (16) and a base (14). The bottom of the support plate (16) is hinged to the base (14) through a triangular plate (15). The slide rail mechanism is connected to the middle of the back of the support plate (16). The slide rail mechanism includes a connecting rod (19) and a horizontal guide rail (1). The upper end of the connecting rod (19) is hinged to the support plate (16). The lower end of the connecting rod (19) is provided with a slide rod (21). The horizontal guide rail (1) is opened on both sides of the base (14). The slide rod (21) is slidably sleeved in the horizontal guide rail (1). The lower end of the connecting rod (19) moves horizontally with the slide rod (21). The angle adjustment device includes an angle gauge and a driving mechanism. The angle gauge is set on the front side of the support plate (16) away from the base (14). The driving mechanism is used to drive the slide rod (21) to move in the horizontal guide rail (1).

2. The gas cylinder tilting anti-spray test platform according to claim 1, characterized in that, The gas supply system includes a high-pressure gas cylinder (2), a pressure reducing valve (3), a pressure gauge and a connecting pipeline. The high-pressure gas cylinder (2) is a 40L nitrogen cylinder with an initial pressure of 20MPa. The high-pressure gas cylinder (2) is connected to the connecting pipeline through the pressure reducing valve (3). The pressure gauge is installed on the pressure reducing valve (3). The other end of the connecting pipeline is connected to the inlet valve of the test gas cylinder (5).

3. The gas cylinder tilting anti-spray test platform according to claim 1, characterized in that, The gas cylinder fixing system includes a large pressure ring (13), a small pressure ring (12), and fastening bolts (17) installed on a support plate (16). The large pressure ring (13) and the small pressure ring (12) are fixed to the support plate (16) by the fastening bolts (17) to accommodate test gas cylinders (5) of different diameters. The inner walls of the large pressure ring (13) and the small pressure ring (12) are provided with anti-slip rubber pads. The large pressure ring (13) is used to fix the large diameter bottle body in the middle of the test gas cylinder (5), and the small pressure ring (12) is used to fix the small diameter bottle mouth at the valve connection points at both ends of the test gas cylinder (5).

4. The gas cylinder tilting anti-spray test platform according to claim 1, characterized in that, The data acquisition system includes an electronic flow meter (6), a data acquisition card, and a computer processing system. The electronic flow meter (6) is connected to the outlet valve of the test gas cylinder (5) to monitor the gas flow in real time. The data acquisition card converts the flow signal into a digital signal. The computer processing system receives the data and displays and stores the flow-time curve in real time.

5. The gas cylinder tilting anti-spray test platform according to claim 1, characterized in that, The horizontal guide rail (1) is provided with a position scale, and the slide rod (21) is provided with a pointer for precisely controlling the displacement of the slide rod (21). The horizontal guide rail (1) is also provided with a buckle (20), and the slide rod (21) is locked after moving along the horizontal guide rail (1) to a designated position.

6. The gas cylinder tilting anti-spray test platform according to claim 1, characterized in that, The base (14) is provided with shock-absorbing and anti-slip pads and horizontal adjustment bolts at the bottom.

7. The gas cylinder tilting anti-spray test platform according to claim 1, characterized in that, The angle measuring instrument is a digital display tilt electronic angle measuring instrument (7), with magnetic attraction on all four sides, and the measuring angle range is 0-180°.

8. The gas cylinder tilting anti-spray test platform according to claim 7, characterized in that, The support plate (16) is made of carbon steel. Small iron pieces are embedded in the corner of the front of the support plate (16) away from the base (14) for magnetic fixation of the angle instrument.

9. A test method based on the gas cylinder tilting anti-spray test experimental platform according to claim 1, characterized in that, Includes the following steps: Step 1, System preparation and installation: Move the slide bar (21) to tilt the support plate (16) to a horizontal position, install the test gas cylinder (5) on the support plate (16), and fix it with large and small pressure rings and fastening bolts (17). After connecting the gas source to the pressure reducing valve (3), connect it to the inlet of the test gas cylinder (5) through the connecting pipeline, and connect the outlet to the electronic flow meter (6). Connect the electronic flow meter (6) and the computer software, and check the sealing of each connection part. Step 2, initial state setting: adjust the position of the slide bar (21) through the drive mechanism to make the support plate (16) vertical, open the inlet valve of the test gas cylinder (5), close the outlet valve, open the gas source valve, adjust the pressure reducing valve (3) to fill the test gas cylinder (5) with the set pressure gas, close the gas source valve, close the inlet valve of the test gas cylinder (5) to stabilize the pressure; Step 3, tilt test execution, start the data acquisition system, open the gas outlet valve of the test gas cylinder (5), control the slide bar (21) to move quickly along the horizontal guide rail (1) through the drive mechanism, drive the support plate (16) and the test gas cylinder (5) to tilt to the target angle at the set speed, and maintain the target angle within the set time; Step 4, data acquisition and analysis: The data acquisition system records the gas flow rate changes in real time throughout the entire pouring process, plots the flow rate-time curve, and analyzes the maximum flow rate and the rate of flow rate change. Step 5: Result comparison. Replace different blowout preventer (8) structures and install them into the test gas cylinder (5) or adjust the test conditions. Repeat the above steps, compare the flow curves, and evaluate the effectiveness of the blowout preventer structure.

10. The test method for a gas cylinder tilting anti-spray test platform according to claim 9, characterized in that, In step 3, the tilting speed is controlled within the range of 10-30° / s, and the target angle is continuously adjusted within the range of 0-180°.

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