Multi-size instrument verification operation device

Abstract

The invention relates to the technical field of water drive oil reservoir oil extraction, in particular to a multi-size instrument verification operation device which comprises a cement base, a connecting pipe B and an operation table, two pipeline assemblies are symmetrically arranged on the operation table, and an upper supporting frame and a lower supporting frame are symmetrically arranged on the two sides of the operation table and provided with an inlet buffering ring and an outlet buffering ring respectively. The pipeline assembly is connected with the supporting frame through a bearing assembly, the workbench is provided with a lifting assembly used for placing a measured instrument, the lifting assembly is embedded into the operation table, and one side of the operation table is provided with a control panel which is connected with the lifting assembly. The control panel is connected with the lifting assembly, the height of the instrument to be detected is convenient to adjust, the multi-size instrument verification operation device forms a complete instrument verification operation platform, the requirement of additional equipment is reduced, the operation is simpler, more convenient and more labor-saving, the working efficiency is improved, and the detection cost is saved.

Description

Technical Field

[0001] This invention relates to the field of water-drive oil reservoir production technology, and in particular to a multi-size instrument calibration and operation device. Background Technology

[0002] Flow monitoring instruments are widely used in oil fields, mainly for real-time monitoring of oil well flow, providing important data support for production management and decision-making. Due to long-term use, the accuracy of flow monitoring instruments may be affected by environmental factors, wear, aging, etc., resulting in deviations between the measured values ​​and the actual flow values. In order to ensure the measurement accuracy and reliability of flow monitoring instruments, it is essential to regularly retest and calibrate their flow accuracy.

[0003] Existing calibration equipment is mostly of parallel structure, requiring a large area for laying pipelines. Each pipeline needs to be equipped with valves, resulting in low testing efficiency and high cost. Parallel calibration equipment may also have the following problems during use: 1. Due to the need to lay a large number of pipelines, the site requirements are high, which increases the cost and difficulty of the inspection; 2. Due to the large number of pipelines and valves, maintenance costs are high, and leaks are prone to occur, affecting the accuracy of the verification results; 3. Parallel-type calibration devices are complex to operate and require professional personnel, which increases the difficulty of operation and training costs. Summary of the Invention

[0004] (a) Technical problems to be solved This invention provides a multi-size instrument calibration operation device to overcome the problem that existing parallel calibration devices require a large space for laying pipelines when testing instruments.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides a multi-size instrument calibration operation device, comprising: a cement base, a connecting pipe B, and an operating table; The upper part of the operating platform is provided with two pipeline assemblies, the two pipeline assemblies being: a first pipeline assembly and a second pipeline assembly; The upper and lower support frames are symmetrically arranged on the left and right sides of the upper part of the operating platform, respectively. The left end of the upper support frame is provided with an inlet buffer ring, and the right end of the lower support frame is provided with an outlet buffer ring. The upper support frame and the lower support frame are respectively provided with bearing assemblies at their upper ends. The two bearing assemblies are respectively connected to the first pipeline assembly and the second pipeline assembly. The two bearing assemblies are respectively fixedly connected to the upper support frame and the lower support frame by a number of fixing bolts A. The inlet buffer ring is provided with a connecting pipe B, a valve is provided on the connecting pipe B, a cement base is provided at the lower end of the connecting pipe B, a connecting pipe A is provided at the left end of the connecting pipe B, a standard electronic watch is provided on the connecting pipe A, and an inlet flange is provided at the left end of the connecting pipe A. The operating platform is equipped with a lifting component, and the instrument under test is mounted on the upper end of the lifting component. The lifting component is embedded in the operating platform, and a control panel is located on one side of the operating platform. The control panel is connected to the lifting component. The second pipeline assembly has a rubber hose at its right end, an outlet pipeline at its right end, and an outlet flange at the other end of the outlet pipeline.

[0006] Preferably, the valve is located in the middle section of the connecting pipe B, and the valve is connected to the connecting pipe B via a flange.

[0007] Preferably, the bearing assembly includes: an upper bearing bracket, a bearing, and a lower bearing bracket, wherein the upper bearing bracket and the lower bearing bracket are provided with the bearing, and the bearing is limited by the upper bearing bracket and the lower bearing bracket.

[0008] Preferably, the standard electronic watch is located in the middle section of the connecting pipe A, and the standard electronic watch is connected to the connecting pipe A via a flange.

[0009] Preferably, the lifting assembly includes: a lifting frame, a limiting plate, a motor support frame, a universal joint, a motor bracket, and a geared motor; The limiting plate is a hollow cylindrical structure, embedded in the operating table, and a lifting frame is provided in the limiting plate, which can move axially within the limiting plate.

[0010] Preferably, the motor support frame is located at the lower end of the operating table, and a motor bracket is provided on the motor support frame, with the motor bracket connected to a geared motor.

[0011] Preferably, the output shaft of the geared motor is connected to one end of a universal joint, and the other end of the universal joint is connected to the bottom of the lifting frame.

[0012] Preferably, the control panel and the operating console are integrated, and the control panel is used to control the working status of the geared motor.

[0013] Preferably, the instrument under test is provided with connecting flanges on both sides, and the connecting flanges are provided with a plurality of fixing bolts B.

[0014] Preferably, the control panel includes: a panel, a power button, a power indicator light, a current indicator screen, a motor forward rotation button, a motor forward rotation indicator light, a motor reverse rotation button, a motor reverse rotation indicator light, and a standard electronic meter flow indicator screen; The power button, power indicator light, current indicator screen, motor forward rotation button, motor forward rotation indicator light, motor reverse rotation button, motor reverse rotation indicator light, and standard electronic meter flow indicator screen are respectively located on the panel. The standard electronic meter flow indicator screen is connected to the standard electronic meter. The power button controls the power-on status of the geared motor.

[0015] Preferably, the pipeline assembly includes: a DN85 connector, a DN40 connector, two rotary discs, a DN50 connector, a DN65 connector, a DN25 connector, a DN100 connector, and a connecting shaft; The two rotating disks are symmetrically arranged, and the DN85 connector, DN40 connector, DN50 connector, DN65 connector, DN25 connector, DN100 connector and connecting shaft are disposed through the two rotating disks, with the connecting shaft located at the center of the two rotating disks.

[0016] Preferably, the connecting shaft is embedded in the bearing, and the pipeline assembly is rotatably connected to the bearing assembly.

[0017] Preferably, the DN85 connector, DN40 connector, DN50 connector, DN65 connector, DN25 connector, and DN100 connector are evenly circumferentially arranged on the rotating disk.

[0018] Preferably, the two pipeline assemblies are respectively located at both ends of the instrument being measured.

[0019] (III) Beneficial Effects This invention provides a multi-size instrument calibration operating device. Through a pipeline assembly with two rotating wheels, it can adapt to the calibration needs of instruments of different sizes, thereby improving the device's applicability. The inclusion of rubber hoses provides flexibility during use, better adapting to different installation and operating environments and reducing installation difficulties and damage risks caused by rigid connections. The design of inlet and outlet buffer rings helps reduce the impact force when fluid enters and exits the instrument, protecting it from damage and improving measurement stability. The overall structure integrates a cement base, connecting pipe A, connecting pipe B, pipeline assembly, operating platform, and lifting assembly to form a complete instrument calibration operating platform, reducing the need for additional equipment and improving work efficiency. The control panel is connected to the lifting assembly, allowing direct operation of the lifting assembly to adjust the height of the instrument under test, making operation simpler and less strenuous, thus improving the efficiency of instrument calibration and saving testing costs. Attached Figure Description

[0020] Figure 1 This diagram illustrates the structure of a multi-size instrument calibration operation device according to the present invention. Figure 2This diagram illustrates the control panel structure of a multi-size instrument calibration operation device according to the present invention. Figure 3 This diagram illustrates the pipeline assembly structure of a multi-size instrument calibration operation device according to the present invention.

[0021] Wherein: 1: Connecting pipe A; 2: Standard electronic meter; 3: Cement base; 4: Connecting pipe B; 5: Valve; 6: Inlet buffer ring; 7: Lower bearing bracket; 8: Bearing; 9: Upper bearing bracket; 10: Upper support frame; 11: Pipeline assembly; 1101: DN85 connector; 1102: DN40 connector; 1103: Rotary disc; 1104: DN50 connector; 1105: DN65 connector; 1106: DN25 connector; 1107: DN100 connector; 1108: Connecting shaft; 12: Instrument under test; 13: Lifting frame; 14: Limiting plate; 15: Operating panel; 16: Electric... 17: Universal joint; 18: Motor bracket; 19: Gear motor; 20: Control panel; 2001: Power button; 2002: Power indicator light; 2003: Current indicator panel; 2004: Motor forward rotation button; 2005: Motor forward rotation indicator light; 2006: Motor reverse rotation button; 2007: Motor reverse rotation indicator light; 2008: Standard electronic meter flow indicator panel; 2009: Panel; 21: Lower support frame; 22: Rubber hose; 23: Outlet buffer ring; 24: Outlet pipeline; 25: Outlet flange; 26: Inlet flange; 27: Fixing bolt A; 28: Fixing bolt B. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "inner," "outer," "top," and "bottom" are based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the components 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 this invention.

[0024] like Figure 1-3 As shown, the present invention provides a multi-size instrument calibration operation device, including: a cement base 3, a connecting pipe B4, and an operating table 15; The upper end of the control panel 15 is provided with two pipeline assemblies 11, which include a first pipeline assembly and a second pipeline assembly. The control panel 15 consists of two parts. The upper end of the control panel 15 is a rectangular structure, and several pillars are evenly provided at the lower end of the rectangular structure to enhance the stability and load-bearing capacity of the control panel 15, ensuring that the control panel can withstand the weight of various equipment and remain stable during instrument calibration. On the left and right sides of the upper end of the operating table 15, an upper support frame 10 and a lower support frame 21 are symmetrically provided respectively. The left end of the upper support frame 10 is provided with an inlet buffer ring 6, and the right end of the lower support frame 21 is provided with an outlet buffer ring 23. The inlet buffer ring 6 and the outlet buffer ring 23 can reduce the vibration and impact generated during the instrument calibration process, thereby improving the accuracy of the calibration results. The upper ends of the upper support frame 10 and the lower support frame 21 are respectively provided with bearing assemblies. The two bearing assemblies are respectively connected to the first pipeline assembly and the second pipeline assembly. Each bearing assembly is fixedly connected to the upper support frame 10 and the lower support frame 21 by several fixing bolts A27. The bearing assembly includes: an upper bearing bracket 9, a bearing 8, and a lower bearing bracket 7. The upper bearing bracket 9 and the lower bearing bracket 7 are provided with the bearing 8, and the bearing 8 is limited by the upper bearing bracket 9 and the lower bearing bracket 7. The pipeline assembly 11 has a rotary structure, with a connecting shaft 1108 serving as the rotating shaft. The connecting shaft 1108 allows rotation of the pipeline assembly 11 to adjust several connectors mounted on it. The pipeline assembly 11 includes: a DN85 connector 1101, a DN40 connector 1102, two rotating disks 1103, a DN50 connector 1104, a DN65 connector 1105, a DN25 connector 1106, a DN100 connector 1107, and a connecting shaft 1108. The two rotating disks 1103 are symmetrically arranged. The DN85 connector 1101, DN40 connector 1102, DN50 connector 1104, and DN65 connector 1105... DN25 connector 1106, DN100 connector 1107 and connecting shaft 1108 are disposed through two rotating disks 1103. The connecting shaft 1108 is located at the center of the two rotating disks 1103 and is embedded in the bearing 8. The pipeline assembly 11 and the bearing assembly form a rotatable connection. DN85 connector 1101, DN40 connector 1102, DN50 connector 1104, DN65 connector 1105, DN25 connector 1106 and DN100 connector 1107 are evenly circumferentially disposed on the rotating disks 1103. These connectors are evenly circumferentially disposed on the rotating disks 1103 to facilitate connection with instruments of different sizes.

[0025] The inlet buffer ring 6 is equipped with a connecting pipe B4, and a valve 5 is installed on the connecting pipe B4 to control the flow of fluid. This allows users to adjust the flow of fluid as needed to meet the requirements of different calibration conditions. The lower end of the connecting pipe B4 is equipped with a cement base 3. The cement base 3 has a rectangular structure, which not only provides sufficient support area but also effectively disperses pressure, ensuring the overall stability of the device. The upper end of the cement base 3 has a semi-circular groove to better fit the shape of the connecting pipe B4. The lower end of the connecting pipe B4 is embedded in the cement base 3, which supports the connecting pipe B4. The left end of the connecting pipe B4 is equipped with a connecting pipe A1, and a standard electronic meter 2 is installed on the connecting pipe A1 to measure the flow rate of the fluid. The standard electronic meter 2 is located in the middle section of the connecting pipe A1. The standard electronic meter 2 and the connecting pipe A1 are connected by a flange to ensure the sealing of the connection and avoid leakage problems that may occur during calibration. The left end of the connecting pipe A1 is equipped with an inlet flange 26 for connecting to an external piping system, which allows the device to be easily connected to various piping systems, improving its applicability.

[0026] The operating table 15 is equipped with a lifting component, and the instrument under test 12 is mounted on the upper end of the lifting component. By adjusting the height of the lifting component, it can adapt to the calibration requirements of instruments at different heights. The lifting component is embedded in the operating table 15, which facilitates the adjustment of the height of the instrument under test 12. A control panel 20 is provided on one side of the operating table 15. The control panel 20 is connected to the lifting component and is used to control the movement of the lifting component, thereby achieving precise adjustment of the height of the instrument under test 12. The lifting assembly includes: a lifting frame 13, a limiting plate 14, a motor support 16, a universal joint 17, a motor bracket 18, and a geared motor 19. The limiting plate 14 is a hollow cylindrical structure and is embedded in the operating table 15. The lifting frame 13 is provided in the limiting plate 14 and can move axially within the limiting plate 14 to achieve height adjustment. The motor support 16 is located at the lower end of the operating table 15 and is used to support the motor bracket 18. The motor bracket 18 is provided on the motor support 16 and is connected to the geared motor 19. The output shaft of the geared motor 19 is connected to one end of the universal joint 17, and the other end of the universal joint 17 is connected to the bottom of the lifting frame 13. The rotation of the geared motor 19 drives the universal joint 17 to move, thereby driving the lifting frame 13 to rise and fall. The control panel 20 is integrated with the operator console 15. The control panel 20 controls the operating status of the geared motor 19. The instrument under test 12 has connecting flanges on both sides, each with several fixing bolts B28 for connecting the instrument under test 12 to the pipeline assembly 11. The instrument under test 12 is positioned between two pipeline assemblies 11. The control panel 20 includes: a panel 2009, a power button 2001, a power indicator light 2002, a current indicator panel 2003, a motor forward rotation button 2004, a motor forward rotation indicator light 2005, and a motor reverse rotation button. 2006, motor reverse indicator light 2007, and standard electronic meter flow indicator screen 2008. The power button 2001, power indicator light 2002, current indicator screen 2003, motor forward button 2004, motor forward indicator light 2005, motor reverse button 2006, motor reverse indicator light 2007, and standard electronic meter flow indicator screen 2008 are respectively located on panel 2009. The standard electronic meter flow indicator screen 2008 is connected to the standard electronic meter 2 and is used to display flow information. The power button 2001 controls the power-on status of the geared motor 19. The second pipeline assembly is provided with a rubber hose 22 at the right end, and an outlet pipeline 24 at the right end of the rubber hose 22. An outlet flange 25 is provided at the other end of the outlet pipeline 24 for connection with an external pipeline system. The valve 5 is located in the middle section of the connecting pipe B4. The valve 5 and the connecting pipe B4 are connected by a flange to ensure the sealing of the connection.

[0027] The following is a detailed description of the actual working scenario of a multi-size instrument calibration operating device.

[0028] In actual operation, the working steps of this multi-size instrument calibration device include the following: Step S1, Preparation; Step S11: Connect a multi-size instrument calibration operating device to an external piping system through an inlet flange 26 and an outlet flange 25 to ensure that the device can be connected to different fluid supply systems. Step S12: Rotate the pipeline assembly 11 according to the size of the instrument under test 12 to select the connector of the corresponding size; Step S2, the device is started; Step S21: Turn on the power button 2001. The power indicator light 2002 will light up, indicating that the device is powered on. Control the rotation direction of the geared motor 19 by using the motor forward rotation button 2004 or the motor reverse rotation button 2006 on the control panel 20, thereby adjusting the height of the lifting frame 13 so that the instrument under test 12 reaches the appropriate calibration position. Step S22: The instrument under test 12 is connected and fixed to the selected connector by a number of fixing bolts B28 provided at both ends; Step S3, verification process; Step S31: Open valve 5 to control the flow of fluid and adjust the flow rate to meet the requirements of different verification conditions. The fluid passes through connecting pipe B4 and connecting pipe A1, is measured by standard electronic meter 2, and then enters the instrument under test 12 for verification. In step S32, during the verification process, the inlet buffer ring 6 and the outlet buffer ring 23 reduce vibration and impact, thereby improving the accuracy of the verification results. Step S33: Monitor the fluid flow rate in real time using the standard electronic flow indicator screen 2008 to ensure the accuracy of the flow rate data during the calibration process; Step S34: Close valve 5 to stop fluid supply, remove several fixing bolts B28 at both ends of the instrument under test 12, lower the height of the lifting frame 13 through control panel 20, and remove the instrument under test 12 to prepare for the calibration of the next instrument.

[0029] It is understood that the various embodiments mentioned above in this invention can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this invention will not elaborate further.

[0030] Those skilled in the art will understand that, in the above-described method of the specific implementation, the order in which each step is written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0031] This invention provides a multi-size instrument calibration operating device. Through a pipeline assembly 11 with two rotating wheels, it can adapt to the calibration needs of instruments of different sizes, thereby improving the device's applicability. The inclusion of a rubber hose 22 provides flexibility during use, better adapting to different installation and operating environments and reducing installation difficulties and damage risks caused by rigid connections. The design of the inlet buffer ring 6 and outlet buffer ring 23 helps reduce the impact force when fluid enters and exits the instrument, protecting it from damage and improving measurement stability. The overall structure integrates a cement base 3, connecting pipe A1, connecting pipe B4, pipeline assembly 11, operating platform 15, and lifting assembly to form a complete instrument calibration operating platform, reducing the need for additional equipment and improving work efficiency. The control panel 20 connects to the lifting assembly, allowing direct operation of the lifting assembly to adjust the height of the instrument under test, making operation simpler and less strenuous, thus improving the efficiency of instrument calibration and saving testing costs.

[0032] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A multi-size instrument calibration operating device, characterized in that, include: Cement base (3), connecting pipe B (4) and operating table (15); The upper end of the operating table (15) is provided with two pipeline assemblies (11), the two pipeline assemblies (11) including: a first pipeline assembly and a second pipeline assembly; The upper support frame (10) and the lower support frame (21) are symmetrically provided on the left and right sides of the upper end of the operating table (15). The upper support frame (10) is provided with an inlet buffer ring (6) on the left end, and the lower support frame (21) is provided with an outlet buffer ring (23) on the right end. The upper support frame (10) and the lower support frame (21) are respectively provided with bearing assemblies at their upper ends. The two bearing assemblies are respectively connected to the first pipeline assembly and the second pipeline assembly. The two bearing assemblies are respectively fixedly connected to the upper support frame (10) and the lower support frame (21) by a number of fixing bolts A (27). The inlet buffer ring (6) is provided with a connecting pipe B (4), a valve (5) is provided on the connecting pipe B (4), a cement base (3) is provided at the lower end of the connecting pipe B (4), a connecting pipe A (1) is provided at the left end of the connecting pipe B (4), a standard electronic watch (2) is provided on the connecting pipe A (1), and an inlet flange (26) is provided at the left end of the connecting pipe A (1). The operating table (15) is provided with a lifting component, and the upper end of the lifting component is provided with a measuring instrument (12). The lifting component is embedded in the operating table (15). A control panel (20) is provided on one side of the operating table (15). The control panel (20) is connected to the lifting component. The second pipeline assembly is provided with a rubber hose (22) at the right end, and an outlet pipeline (24) is provided at the right end of the rubber hose (22), and an outlet flange (25) is provided at the other end of the outlet pipeline (24).

2. The multi-size instrument calibration operating device according to claim 1, characterized in that, The valve (5) is located in the middle section of the connecting pipe B (4), and the valve (5) is connected to the connecting pipe B (4) through a flange.

3. The multi-size instrument calibration operating device according to claim 1, characterized in that, The bearing assembly includes: an upper bearing bracket (9), a bearing (8) and a lower bearing bracket (7), wherein the upper bearing bracket (9) and the lower bearing bracket (7) are provided with the bearing (8), and the bearing (8) is limited by the upper bearing bracket (9) and the lower bearing bracket (7).

4. The multi-size instrument calibration operation device according to claim 1, characterized in that, The standard electronic watch (2) is located in the middle section of the connecting pipe A (1), and the standard electronic watch (2) is connected to the connecting pipe A (1) through a flange.

5. The multi-size instrument calibration operating device according to claim 1, characterized in that, The lifting assembly includes: a lifting frame (13), a limiting plate (14), a motor support frame (16), a cross universal joint (17), a motor bracket (18), and a geared motor (19). The limiting plate (14) is a hollow cylindrical structure. The limiting plate (14) is embedded in the operating table (15). The limiting plate (14) is provided with a lifting frame (13), which can move axially in the limiting plate (14).

6. The multi-size instrument calibration operating device according to claim 5, characterized in that, The motor support frame (16) is located at the lower end of the operating table (15), and the motor support frame (16) is provided with a motor bracket (18), which is connected to a geared motor (19).

7. The multi-size instrument calibration operation device according to claim 6, characterized in that, The output shaft of the geared motor (19) is connected to one end of the universal joint (17), and the other end of the universal joint (17) is connected to the bottom of the lifting frame (13).

8. The multi-size instrument calibration operating device according to claim 7, characterized in that, The control panel (20) and the operating console (15) are integrated into one unit. The control panel (20) is used to control the working status of the geared motor (19).

9. The multi-size instrument calibration operating device according to claim 1, characterized in that, The instrument under test (12) is provided with connecting flanges on both sides, and the connecting flanges are provided with a number of fixing bolts B (28).

10. The multi-size instrument calibration operating device according to claim 5, characterized in that, The control panel (20) includes: a panel (2009), a power button (2001), a power indicator light (2002), a current indicator screen (2003), a motor forward rotation button (2004), a motor forward rotation indicator light (2005), a motor reverse rotation button (2006), a motor reverse rotation indicator light (2007), and a standard electronic meter flow indicator screen (2008). The power button (2001), power indicator (2002), current indicator (2003), motor forward button (2004), motor forward indicator (2005), motor reverse button (2006), motor reverse indicator (2007), and standard electronic meter flow indicator (2008) are respectively located on the panel (2009). The standard electronic meter flow indicator (2008) is connected to the standard electronic meter (2). The power button (2001) controls the power-on state of the geared motor (19).

11. The multi-size instrument calibration operating device according to claim 3, characterized in that, The pipeline assembly (11) includes: a DN85 connector (1101), a DN40 connector (1102), two rotary discs (1103), a DN50 connector (1104), a DN65 connector (1105), a DN25 connector (1106), a DN100 connector (1107), and a connecting shaft (1108). The two rotating disks (1103) are symmetrically arranged. The DN85 connector (1101), DN40 connector (1102), DN50 connector (1104), DN65 connector (1105), DN25 connector (1106), DN100 connector (1107) and connecting shaft (1108) are disposed through the two rotating disks (1103). The connecting shaft (1108) is located at the center of the two rotating disks (1103).

12. The multi-size instrument calibration operating device according to claim 11, characterized in that, The connecting shaft (1108) is embedded in the bearing (8), and the pipeline assembly (11) is rotatably connected to the bearing assembly.

13. The multi-size instrument calibration operating device according to claim 11, characterized in that, The DN85 connector (1101), DN40 connector (1102), DN50 connector (1104), DN65 connector (1105), DN25 connector (1106), and DN100 connector (1107) are evenly circumferentially arranged on the rotating disk (1103).

14. The multi-size instrument calibration operating device according to claim 11, characterized in that, The two pipeline assemblies (11) are respectively located at both ends of the instrument under test (12).

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