Vibration impact test platform for detecting metering accuracy of anti-seismic flowmeter

Abstract

The utility model discloses a vibration impact test platform for detecting the metering accuracy of an anti-seismic flow meter, and relates to the field of flow meter metering accuracy test experiments, in particular to the vibration impact test platform for detecting the metering accuracy of the anti-seismic flow meter, which comprises a test board. A liquid inlet pipe and a liquid outlet pipe are fixedly arranged on the test board base, and the opposite ends of the liquid inlet pipe and the liquid outlet pipe are provided with connecting flanges used for being connected with the two ends of a flowmeter respectively; a detection device is connected to one end, far away from the liquid inlet pipe, of the liquid outlet pipe; the test bench further comprises an earthquake vibration simulation device and a rockfall impact simulation device. The earthquake vibration simulation device is connected with the test bench base. According to the utility model, pipeline shaking caused by transverse waves and longitudinal waves of an earthquake and vibration impact on the pipeline under a falling stone impact condition can be simulated at the same time. The device is simple in structure, accurate in detection result and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of flow meter measurement accuracy testing experiments, specifically to a vibration and impact test platform for testing the measurement accuracy of shock-resistant flow meters. Background Technology

[0002] The accuracy of flowmeter measurements at oil and gas well sites is crucial for ensuring the production management and efficient operation of oil and gas fields. During the operation of flowmeters at well sites, various factors such as fluid impact vibration, earthquakes, and rockfalls often affect the accuracy of the flowmeter's measuring elements. To address these issues, experts and scholars have invented various vibration-resistant flowmeters; however, there is currently a lack of testing instruments to verify the vibration resistance and measurement accuracy of these new vibration-resistant flowmeters.

[0003] For example, in the invention patent "Flowmeter Performance Testing Device and Method" (patent application number: 202010820997.0), the existing flowmeter performance testing device uses a method of connecting a standard flowmeter in series with the flowmeter under test to calibrate the measurement accuracy of the flowmeter under test. However, the measurement of the standard flowmeter is often not absolutely accurate and has a certain error value. In the invention patent "A Large-Diameter Pipeline Sodium Liquid Flowmeter Seismic Testing Device and Usage Method" (patent application number: 202110194699.X), the device design can only test and calibrate liquid flowmeters and cannot test gas flowmeters or two-phase or three-phase flowmeters containing gas. This utility model patent can test both gas flowmeters and liquid flowmeters. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a vibration and impact test platform capable of simulating various vibration problems experienced by flow meters in oil and gas fields, such as earthquakes, rockfall impacts, and pipe flow vibrations. Under vibration and impact conditions, it enables the verification of the measurement accuracy of anti-vibration flow meters, providing accurate test results.

[0005] This utility model discloses a vibration and impact test platform for testing the measurement accuracy of an anti-vibration flow meter, including a test platform, the test platform including a test platform base, an inlet pipe and an outlet pipe fixedly installed on the test platform base, and a connecting flange for connecting the two ends of the inlet pipe and the outlet pipe respectively installed at their opposite ends.

[0006] A detection device is connected to the end of the outlet pipe that is away from the inlet pipe;

[0007] It also includes an earthquake vibration simulation device and a rockfall impact simulation device, wherein the earthquake vibration simulation device is connected to the test bench base;

[0008] The rockfall simulation device includes a ejection chamber, one end of which is provided with an ejection outlet, and the other end is fixedly connected to an ejection structure for ejecting simulated rockfall balls. The ejection outlet is positioned toward a flow meter connected between two flanges.

[0009] Preferably, the earthquake vibration simulation device includes a fixed base, the top surface of which is provided with a receiving groove, the test platform base is disposed in the receiving groove, and the bottom surface and the periphery of the test platform base are connected to the inner wall of the receiving groove through an electromagnetic exciter.

[0010] Preferably, a rubber gasket is provided between the fixed base and the electromagnetic vibrator, and a rubber gasket is also provided between the inner wall of the receiving groove and the electromagnetic vibrator.

[0011] Preferably, the test bench base is provided with a through area that passes through the test bench base corresponding to the position of the flow meter, the ejection structure is fixedly mounted on the fixed base, and one end of the ejection cavity with an ejection outlet passes through the through area and is set towards the flow meter.

[0012] Preferably, the ejection structure includes an ejection body, on which a drive chamber and an action chamber are provided. The action chamber and the drive chamber are connected to each other. Loading chambers are provided on both sides of the ejection body of the action chamber. The end of the loading chamber near the drive chamber is connected to the action chamber through a circular through hole.

[0013] The action chamber is slidably provided with a push seat for ejecting and launching a simulated ball from the ejection outlet. The end of the push seat away from the ejection outlet is hinged to a connecting rod. The end of the connecting rod away from the push seat extends into the drive chamber and is hinged to a crank. A motor that drives the crank to rotate is connected to the crank. The motor is fixedly installed in the drive chamber.

[0014] The action chamber is also equipped with two return springs, which are located on both sides of the connecting rod. One end of the return spring is connected to the push seat, and the other end is connected to the inner wall of the action chamber near the drive chamber. Both the action chamber and the return springs are vertically arranged.

[0015] The end face of the pusher seat facing the ejection exit is an arc surface that is recessed into the drive chamber;

[0016] When the crank rotates and the pusher seat is in its lowest position, the filling chamber is connected to the action chamber. When the crank rotates and the pusher seat is in its highest position, the side of the pusher seat blocks the circular connecting hole.

[0017] Preferably, the detection device includes a main pipeline connected to the liquid outlet, and five straight pipelines are connected to the main pipeline. Four of the straight pipelines are symmetrically arranged on both sides of the main pipeline, and the four straight pipelines are side pipelines. The other straight pipeline is coaxially arranged with the main pipeline.

[0018] Valves are installed on all straight pipelines, and balloons for measuring the volume of gas flowing through are fixed and sealed to the end of the side pipelines away from the main pipeline.

[0019] Preferably, the inlet pipe and outlet pipe are provided with corrugated pipes.

[0020] Preferably, both the inlet pipe and the outlet pipe are fixedly connected to the test bench base via support rods and pipe clips.

[0021] Preferably, an electromagnetic vibrator for driving the test platform base to vibrate horizontally is respectively provided at the positions corresponding to both ends of the test platform base in the receiving groove. The two electromagnetic vibrators are horizontally arranged, and one end of the electromagnetic vibrator is fixedly connected to the fixed base, while the other end of each vibrator extends toward the test platform base and is slidably connected to the slide rails vertically arranged at both ends of the test platform base.

[0022] Two electromagnetic vibrators for driving the vertical vibration of the test bench base are also fixedly installed at the bottom of the receiving groove. The two electromagnetic vibrators are vertical and symmetrically arranged about the falling rock impact simulation device. One end of the electromagnetic vibrator is fixedly connected to the fixed base, and the other end extends towards the bottom of the test bench base and is slidably connected to the slide rail horizontally set on the bottom of the test bench base.

[0023] This invention has a simple structure, provides accurate test results, and is easy to use.

[0024] To reduce the propagation of vibration to the bottom during the movement of the electromagnetic vibrator, this invention adds rubber pads for shock absorption when each electromagnetic vibrator is fixed.

[0025] The vibrating part of the electromagnetic vibrator of this invention is connected to the test bench base via a slide rail, which ensures the smooth movement of the test bench base.

[0026] The present invention has a balloon at the end of the detection device for accurately measuring the fluid flowing through the flow meter. This set of equipment can simultaneously test the measurement accuracy of liquid flow meters and gas flow meters.

[0027] This invention can simultaneously simulate the pipe swaying caused by transverse and longitudinal waves of an earthquake, as well as the vibration and impact on the pipe under the condition of falling rocks. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the present invention.

[0029] Figure 2 This is a schematic diagram of the detection device.

[0030] Figure 3 This is a schematic diagram of the catapult structure.

[0031] Reference numerals: 1-Seismic flow meter, 2-Detection device, 3-Ejection structure, 4-Fixed seat, 5-Bellbell, 6-Pipe clamp, 7-Flange, 8-Electromagnetic vibrator, 9-Test bench base, 10-Slide rail, 12-Rubber gasket, 21-Main pipeline, 22-Valve, 23-Straight pipeline, 24-Balloon, 25-Balloon fixing rubber band, 31-Filling chamber, 32-Shock simulation ball, 33-Push seat, 34-Circular through hole, 35-Reset spring, 36-Motor. Detailed Implementation

[0032] This utility model discloses a vibration and impact test platform for testing the measurement accuracy of an anti-vibration flow meter 1. The test platform includes a test platform base 9, on which an inlet pipe and an outlet pipe are fixedly installed. Connecting flanges 7 for connecting the two ends of the inlet pipe and the outlet pipe are respectively provided at their opposite ends.

[0033] A detection device 2 is connected to the end of the outlet pipe away from the inlet pipe;

[0034] It also includes an earthquake vibration simulation device and a rockfall impact simulation device, wherein the earthquake vibration simulation device is connected to the test bench base 9;

[0035] The rockfall simulation device includes a ejection chamber, one end of which is provided with an ejection outlet, and the other end is fixedly connected to an ejection structure 3 for ejecting a simulated rockfall ball 32. The ejection outlet is positioned toward a flow meter connected between two flanges 7.

[0036] In one embodiment, the earthquake vibration simulation device includes a fixed base 4, the top surface of which is provided with a receiving groove, the test platform base 9 is disposed in the receiving groove, and the bottom surface and the periphery of the test platform base 9 are connected to the inner wall of the receiving groove through an electromagnetic vibrator 8.

[0037] A rubber gasket 12 is provided between the fixed base 4 and the electromagnetic vibrator 8, and a rubber gasket 12 is also provided between the inner wall of the accommodating groove and the electromagnetic vibrator 8.

[0038] In one embodiment, the test bench base 9 is provided with a through area corresponding to the position of the flow meter, and the ejection structure 3 is fixedly mounted on the fixed base 4. One end of the ejection cavity with an ejection outlet passes through the through area and is set toward the flow meter.

[0039] In one embodiment, the ejection structure 3 includes an ejection body, on which a drive chamber and an action chamber are provided. The action chamber and the drive chamber are connected to each other. Loading chambers are provided on both sides of the ejection body of the action chamber. The end of the loading chamber near the drive chamber is connected to the action chamber through a circular through hole 34.

[0040] The action chamber is slidably provided with a push seat 33 for ejecting and launching a simulated ball from the ejection outlet. The end of the push seat 33 away from the ejection outlet is hinged to a connecting rod. The end of the connecting rod away from the push seat 33 extends into the drive chamber and is hinged to a crank. A motor 36 that drives the crank to rotate is connected to the crank. The motor 36 is fixedly installed in the drive chamber.

[0041] The action chamber is also provided with two return springs 35. The return springs 35 are located on both sides of the connecting rod, and one end of the return spring 35 is connected to the push seat 33, and the other end is connected to the inner wall of the action chamber near the drive chamber. The action chamber and the return springs 35 are both vertically arranged.

[0042] The end face of the pusher seat 33 facing the ejection exit is an arc surface that is recessed into the drive chamber;

[0043] When the crank rotates and the push seat 33 is in its lowest position, the filling chamber 31 is connected to the action chamber. When the crank rotates and the push seat 33 is in its highest position, the side of the push seat 33 is blocked on the circular connecting hole.

[0044] In one embodiment, the detection device 2 includes a main pipeline 21 connected to the liquid outlet, and five straight pipelines 23 are connected to the main pipeline 21. Four of the straight pipelines 23 are symmetrically arranged on both sides of the main pipeline 21, and the four straight pipelines 23 are side pipelines. The other straight pipeline 23 is coaxially arranged with the main pipeline 21.

[0045] Each straight pipe 23 is equipped with a valve 22, and each side pipe is fixed and sealed with a balloon 24 connected to the pipe to measure the volume of gas flowing through it. Each balloon 24 is secured at its end with several high-quality, highly elastic rubber bands 25.

[0046] In one embodiment, the inlet pipe and the outlet pipe are provided with corrugated pipes 5.

[0047] Both the inlet and outlet pipes are fixedly connected to the test bench base 9 via support rods and pipe clips 6.

[0048] An electromagnetic vibrator 8 is provided at each end of the test bench base 9 in the accommodating groove to drive the test bench base 9 to vibrate horizontally. The two electromagnetic vibrators 8 are horizontally arranged, and one end of the electromagnetic vibrator 8 is fixedly connected to the fixed base 4, while the other end extends toward the test bench base 9 and is slidably connected to the slide rail 10 that is vertically arranged at both ends of the test bench base 9.

[0049] Two electromagnetic vibrators 8 for driving the vertical vibration of the test bench base 9 are also fixedly installed at the bottom of the receiving groove. The two electromagnetic vibrators 8 are vertical and symmetrically arranged about the falling rock impact simulation device. One end of the electromagnetic vibrator 8 is fixedly connected to the fixed seat 4, and the other end extends toward the bottom of the test bench base 9 and is slidably connected to the slide rail 10 horizontally set on the bottom of the test bench base 9.

[0050] To prevent the movement of the electromagnetic vibrators 8 from being restricted, only four electromagnetic vibrators 8 are installed. The slide rails 10 at the bottom of the test platform base 9 are arranged horizontally, and the slide rails 10 on both sides of the test platform base 9 are arranged vertically. When the electromagnetic vibrators 8 below the test platform base 9 push the test platform base 9 to move vertically, the vibration heads of the electromagnetic vibrators 8 on the left and right sides of the test platform base 9 move vertically in the slide rails 10 on the left and right sides of the test platform base 9. When the electromagnetic vibrators 8 on both sides of the test platform base 9 push the test platform to move horizontally, the vibration heads of the electromagnetic vibrators 8 below the test platform base 9 move horizontally in the slide rails 10 at the bottom of the test platform base 9, so that there is no restriction on vibration.

[0051] Operating instructions:

[0052] Step 1. After moving the present invention to the designated test location, fix it in place.

[0053] Step 2. Pipeline fixing: Use bolts to connect the anti-vibration flow meter 1 to the inlet and outlet pipes through the flange 7, and adjust the pipe clamps 6 to fix the pipeline.

[0054] Step 3. Vibration Simulation: Simulate the lateral and longitudinal motion caused by seismic waves by turning on the switch of electromagnetic vibrator 8, and simulate the vibration impact of falling rocks on the pipeline by turning on the motor 36 of the catapult device. Electromagnetic vibrator 8 and catapult mechanism can be turned on simultaneously or separately as needed to simulate different types of impact.

[0055] Sampling and testing: Close the valves 22 on the four side pipes of the testing device 2, open the valves 22 on the remaining straight branches, and after the fluid flow stabilizes, based on step 3, open the valves 22 on any one of the side pipes on the straight branches where the valves 22 were opened, allowing the fluid to flow into the balloon 24. After the same time interval, close the valve 22 on that side pipe, open the valve 22 on the second side pipe, allowing the fluid to flow into the balloon 24. Repeat the same steps to fill the four balloons 24 sequentially under vibration conditions, thereby obtaining the fluid volume per unit time. Combined with the pipe dimensions, the flow rate can be calculated. Compare the results with the test results of the vibration-resistant flow meter 1, and judge the vibration resistance effect of the flow meter based on the difference. The larger the difference, the worse the vibration resistance effect, and vice versa.

Claims

1. A vibration and impact testing platform for detecting the measurement accuracy of a vibration-resistant flowmeter, comprising a test bench, characterized in that, The test bench includes a test bench base, on which an inlet pipe and an outlet pipe are fixedly installed. At opposite ends of the inlet pipe and the outlet pipe, a connecting flange for connecting the two ends of the flow meter is provided. A detection device is connected to the end of the outlet pipe that is away from the inlet pipe; It also includes an earthquake vibration simulation device and a rockfall impact simulation device, wherein the earthquake vibration simulation device is connected to the test bench base; The rockfall impact simulation device includes a ejection chamber, one end of which is provided with an ejection outlet, and the other end is fixedly connected to an ejection structure for ejecting simulated rockballs. The ejection outlet is positioned toward a flow meter connected between two flanges.

2. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 1, characterized in that, The earthquake vibration simulation device includes a fixed base with a receiving groove on the top surface of the fixed base. The test platform base is set in the receiving groove, and the bottom surface and the periphery of the test platform base are connected to the inner wall of the receiving groove through an electromagnetic vibrator.

3. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 2, characterized in that, A rubber gasket is provided between the fixed base and the electromagnetic vibrator, and a rubber gasket is also provided between the inner wall of the accommodating groove and the electromagnetic vibrator.

4. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 2, characterized in that, The test bench base has a through area corresponding to the position of the flow meter. The ejection structure is fixedly mounted on the fixed base, and one end of the ejection cavity with an ejection outlet passes through the through area and faces the flow meter.

5. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 1, characterized in that, The ejection structure includes an ejection body, on which a drive chamber and an action chamber are provided. The action chamber and the drive chamber are connected to each other. Loading chambers are provided on both sides of the ejection body of the action chamber. The end of the loading chamber near the drive chamber is connected to the action chamber through a circular through hole. The action chamber is slidably provided with a push seat for ejecting and launching a simulated ball from the ejection outlet. The end of the push seat away from the ejection outlet is hinged to a connecting rod. The end of the connecting rod away from the push seat extends into the drive chamber and is hinged to a crank. A motor that drives the crank to rotate is connected to the crank. The motor is fixedly installed in the drive chamber. The action chamber is also equipped with two return springs, which are located on both sides of the connecting rod. One end of the return spring is connected to the push seat, and the other end is connected to the inner wall of the action chamber near the drive chamber. Both the action chamber and the return springs are vertically arranged. The end face of the pusher seat facing the ejection exit is an arc surface that is recessed into the drive chamber; When the crank rotates and the pusher seat is in its lowest position, the filling chamber is connected to the action chamber. When the crank rotates and the pusher seat is in its highest position, the side of the pusher seat blocks the circular connecting hole.

6. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 5, characterized in that, The detection device includes a main pipeline connected to the liquid outlet, and five straight pipelines are connected to the main pipeline. Four of the straight pipelines are symmetrically arranged on both sides of the main pipeline, and the four straight pipelines are side pipelines. The other straight pipeline is coaxially arranged with the main pipeline. Valves are installed on all straight pipelines, and balloons for measuring the volume of gas flowing through are fixed and sealed to the end of the side pipelines away from the main pipeline.

7. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 1, characterized in that, The inlet and outlet pipes are equipped with corrugated pipes.

8. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 1, characterized in that, Both the inlet and outlet pipes are fixedly connected to the test bench base via support rods and pipe clips.

9. The vibration and impact test platform for detecting the measurement accuracy of a seismic-resistant flowmeter as described in claim 2, characterized in that, An electromagnetic vibrator for driving the test bench base to vibrate horizontally is respectively installed at the two ends of the accommodating groove. The two electromagnetic vibrators are horizontally arranged, and one end of the electromagnetic vibrator is fixedly connected to the fixed base, while the other end extends toward the test bench base and is slidably connected to the slide rails that are vertically arranged at both ends of the test bench base. Two electromagnetic vibrators for driving the vertical vibration of the test bench base are also fixedly installed at the bottom of the receiving groove. The two electromagnetic vibrators are vertical and symmetrically arranged about the falling rock impact simulation device. One end of the electromagnetic vibrator is fixedly connected to the fixed base, and the other end extends towards the bottom of the test bench base and is slidably connected to the slide rail horizontally set on the bottom of the test bench base.

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