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CN-122016494-A - Gas cylinder toppling blowout prevention test experiment platform and test method

CN122016494ACN 122016494 ACN122016494 ACN 122016494ACN-122016494-A

Abstract

The invention discloses a gas cylinder toppling and blowout prevention test experiment platform and a test method, which relate to the field of safety test of pressure containers and comprise a test gas cylinder, a gas source supply system, a toppling angle control system, a gas cylinder fixing system and a data acquisition system, wherein the test gas cylinder is arranged on the toppling angle control system through the gas cylinder fixing system, the toppling 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 with each other, the sliding rail mechanism is connected to the middle part of the back surface of the supporting plate, the sliding rail mechanism comprises a connecting rod and a horizontal guide rail, the upper end of the connecting rod is hinged with the supporting plate, the lower end of the connecting rod is provided with a sliding rod, the horizontal guide rail is arranged on two sides of the base, the sliding rod is sleeved in the horizontal guide rail in a sliding way, and the angle adjusting device is used for adjusting and monitoring the inclined platform.

Inventors

  • LIN ZHIXU
  • CAI YANBIN
  • MA CHAOHUI
  • HU ZHUQIANG
  • SU ZHIJIAN
  • MAO CHUNYAN
  • LIN ZHIWEI
  • YUAN GUOSONG

Assignees

  • 广东省特种设备检测研究院东莞检测院

Dates

Publication Date
20260512
Application Date
20260130

Claims (10)

  1. 1. The utility model provides a gas cylinder topples and prevents spouting test experiment platform, its characterized in that includes test gas cylinder (5), air supply system, topples angle control system, gas cylinder fixing system and data acquisition system, test gas cylinder (5) are two opening gas cylinders, test gas cylinder (5) are installed on toppling angle control system through gas cylinder fixing system, air supply system is used for providing controllable pressure's air supply for test gas cylinder (5), data acquisition system is used for gathering total flow and real-time instantaneous flow of test gas cylinder (5), topple angle control system includes inclination platform, slide rail mechanism and angle adjusting device, inclination platform includes backup pad (16) and base (14), backup pad (16) bottom is fixed in on base (14) through set square (15) hinge, slide rail mechanism connects the middle part at the backup pad (16) back, slide rail mechanism includes connecting rod (19) and horizontal guide rail (1), connecting rod (19) upper end and backup pad (16) hinge, connecting rod (19) lower extreme is provided with (21), horizontal guide rail (1) are seted up in base (14) total flow and real-time instantaneous flow, slide bar (21) are located in the slide bar direction along with angle adjusting device, the angle gauge is arranged on one side, far away from the base (14), of the front face of the supporting plate (16), and the driving mechanism is used for driving the sliding rod (21) to move in the horizontal guide rail (1).
  2. 2. The gas cylinder dumping blowout prevention test experiment platform as set forth in claim 1, wherein the gas source supply system comprises 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, the initial pressure is 20MPa, the high-pressure gas cylinder (2) is connected with the connecting pipeline through the pressure reducing valve (3), the pressure gauge is installed on the pressure reducing valve (3), and the other end of the connecting pipeline is connected with a gas inlet end valve of the test gas cylinder (5).
  3. 3. The gas cylinder dumping blowout-preventing test experiment platform according to claim 1, wherein the gas cylinder fixing system comprises a large pressing ring (13), a small pressing ring (12) and a fastening bolt (17) which are arranged on a supporting plate (16), the large pressing ring (13) and the small pressing ring (12) are fixed on the supporting plate (16) through the fastening bolt (17) so as to adapt to clamping of test gas cylinders (5) with different diameters, anti-skid rubber pads are arranged on inner walls of the large pressing ring (13) and the small pressing ring (12), the large pressing ring (13) is used for fixing a large-diameter cylinder body in the middle of the test gas cylinder (5), and the small pressing ring (12) is used for fixing small-diameter cylinder mouths at connecting valves at two ends of the test gas cylinder (5).
  4. 4. The gas cylinder dumping blowout-preventing test experiment platform as set forth in claim 1, wherein the data acquisition system comprises an electronic flowmeter (6), a data acquisition card and a computer processing system, wherein the electronic flowmeter (6) is connected to a valve at a gas outlet end of the test gas cylinder (5), the gas flow is monitored in real time, the data acquisition card converts a flow signal into a digital signal, and the computer processing system receives data and displays and stores a flow-time curve in real time.
  5. 5. The gas cylinder toppling and blowout prevention test experiment platform according to claim 1, wherein a position graduated scale is arranged on the horizontal guide rail (1), a pointer is arranged on the sliding rod (21) and used for accurately controlling the displacement of the sliding rod (21), a buckle (20) is further arranged on the horizontal guide rail (1), and the sliding rod (21) is locked after moving to a designated position along the horizontal guide rail (1).
  6. 6. The gas cylinder dumping blowout prevention test experiment platform as set forth in claim 1 wherein a shock absorbing anti-slip pad and a horizontal adjusting bolt are provided at the bottom of the base (14).
  7. 7. The air bottle toppling and blowout prevention test experiment platform according to claim 1, wherein the angle meter is a digital display inclination angle electronic angle meter (7), four sides are provided with magnetic attraction, and the measuring angle range is 0-180 degrees.
  8. 8. The gas cylinder toppling and blowout prevention test experiment platform according to claim 7, wherein the supporting plate (16) is made of carbon steel, and a small iron sheet is embedded in a corner of the front surface of the supporting plate (16) far away from the base (14) for magnetic attraction fixation of an angle meter.
  9. 9. A testing method based on the gas cylinder dumping blowout prevention testing experiment platform as set forth in claim 1, which is characterized by comprising the following steps: Step 1, preparing and installing a system, moving a sliding rod (21) to enable a supporting plate (16) to incline to be in a horizontal state, installing a test gas cylinder (5) on the supporting plate (16), fixing the test gas cylinder through a large compression ring and a small compression ring and a fastening bolt (17), connecting a gas source with a pressure reducing valve (3), connecting a gas inlet of the test gas cylinder (5) through a connecting pipeline, connecting a gas outlet with an electronic flowmeter (6), connecting the electronic flowmeter (6) with computer software, and checking the tightness of each connecting part; Step 2, setting an initial state, adjusting the position of a sliding rod (21) through a driving mechanism to enable a supporting plate (16) to be in a vertical state, opening an air inlet valve of a test air bottle (5), closing an air outlet valve, opening an air source valve, adjusting through a pressure reducing valve (3), filling air with set pressure into the test air bottle (5), closing the air source valve, closing the air inlet valve of the test air bottle (5), and stabilizing the pressure; Step 3, pouring test is executed, a data acquisition system is started, an air outlet valve of the test air bottle (5) is opened, a sliding rod (21) is controlled to rapidly move along the horizontal guide rail (1) through a driving mechanism, a supporting plate (16) and the test air bottle (5) are driven to incline to a target angle according to a set speed, and the target angle is maintained within a set time; step 4, data acquisition and analysis, wherein a data acquisition system records the gas flow change in the whole dumping process in real time, draws a flow-time curve, and analyzes the maximum flow value and the flow change rate; And 5, comparing the results, replacing the structures of different blowout preventers (8) and respectively loading the structures into a test gas cylinder (5) or adjusting test conditions, repeating the steps, comparing flow curves, and evaluating the effectiveness of the blowout preventers.
  10. 10. The test method of the gas cylinder pouring blowout prevention test experiment platform according to claim 9, wherein in the step 3, the pouring speed is controlled within a range of 10-30 degrees/s, and the target angle is continuously adjusted within a range of 0-180 degrees.

Description

Gas cylinder toppling blowout prevention test experiment platform and test method Technical Field The invention belongs to the field of safety test of pressure vessels, and particularly relates to a gas cylinder toppling blowout prevention test experiment platform and a test method. Background The safety of the gas cylinder is directly related to the life and property safety of a plurality of fields such as industrial production, medical first aid, energy chemical industry and the like as key equipment for storing and transporting compressed gas. In actual transportation, handling and use, the gas cylinders may topple over due to accidental collisions, mishandling or sudden environmental changes. Once the bottle mouth valve is broken or damaged due to pouring, high-pressure gas (particularly liquefied gas) in the bottle is sprayed from the broken part at high speed under the action of pressure difference and gravity, so that huge impact force and potential explosion risk are generated, and serious safety accidents are easily caused. To reduce such risks, the industry has increasingly adopted gas cylinder blowout preventers aimed at limiting the instantaneous blowout flow of gas after valve breakage by internal structural design. However, how to scientifically and accurately evaluate the effectiveness of blowout preventers becomes a technical bottleneck in the industry. The traditional testing method is mostly dependent on manual dumping or simple mechanical overturning, and has obvious defects: 1. The angle control precision is low, the repeatability is poor, the initial angle, the movement speed and the termination angle of dumping are difficult to accurately control by manual operation, the testing working conditions are inconsistent each time, and the testing results cannot be effectively compared; 2. The data acquisition is not systematic and inaccurate, i.e. the instantaneous flow change in the injection process cannot be recorded in real time and continuously depending on visual inspection or simple meter reading, and key parameters such as peak flow, flow change rate and the like are difficult to acquire accurately; 3. the test safety and the standardization degree are low, manual operation is exposed to potential injection risks in a short distance, and the test result lacks of unified test flow and judgment standards, so that the reliability and the comparability of the test result are insufficient. Therefore, development of a standardized test platform and a test method which can accurately simulate the toppling process of a gas cylinder, realize angle adjustment and controllability, monitor flow parameters in real time, and operate safely and reliably are needed to scientifically evaluate the protective performance of the blowout preventer, and provide technical support for product optimization and safety standard formulation. Disclosure of Invention In view of the above, the invention aims to provide a test platform and a test method for a gas cylinder dumping blowout prevention test, which are reasonable in structure, safe to operate and accurate in data, so as to solve the problems of inaccurate angle control, no data acquisition system and poor test repeatability in the prior test technology, and is applied to a test experiment of a gas cylinder blowout prevention device. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a gas cylinder topples and prevents spouting test experiment platform, includes test gas cylinder, air supply system, topples angle control system, gas cylinder fixing system and data acquisition system, the test gas cylinder is two opening gas cylinders, the test gas cylinder passes through gas cylinder fixing system and installs on toppling angle control system, air supply system is used for providing controllable pressure's air supply for the test gas cylinder, data acquisition system is used for gathering test gas cylinder's total flow and real-time instantaneous flow, topple angle control system includes tilt platform, slide rail mechanism and angle adjustment device, tilt platform includes backup pad and base, and the backup pad bottom is fixed in on the base through the set square hinge, slide rail mechanism connects the middle part at the backup pad back, slide rail mechanism includes connecting rod and horizontal guide, the connecting rod upper end is articulated with the backup pad, the connecting rod lower extreme is provided with the slide bar, the horizontal guide is seted up in the both sides of base, the slide bar slip cap is located in the horizontal guide, the connecting rod lower extreme moves along with the horizontal direction, angle adjustment device includes angle appearance and actuating mechanism, the angle appearance sets up in the backup pad one side that the base is kept away from in the front, actuating mechanism is used for driving in the horizontal guide. Further, the ai