A kind of on-line monitoring instrument for ship high-pressure butterfly valve

Abstract

The application provides a kind of ship high-pressure butterfly valve on-line monitor, including monitor body and high-pressure pipeline, the monitor body includes first monitoring module, second monitoring module, valve body and controller, both ends of the first monitoring module are respectively provided with front end butt joint sleeve and rear end butt joint sleeve, and the end of front end butt joint sleeve and rear end butt joint sleeve is fixedly connected with high-pressure pipeline part through first flange, the valve body is fixedly installed on the middle position of first monitoring module, the monitor can directly measure the rotation angle of butterfly plate through first monitoring module, the measurement is completely independent of the opening structure part of butterfly valve, so the opening angle set on the opening mechanism can be compared with the measured opening angle of butterfly plate, high-precision monitoring effect is realized, and the opening state of each butterfly valve can be directly viewed in the central control room through the wireless transmission module on the controller, which is more simple and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of marine pipelines, specifically to an online monitoring instrument for high-pressure butterfly valves in ships. Background Technology

[0002] A butterfly valve is a simple regulating valve. The valve core consists of a butterfly plate and a valve shaft. The valve shaft is rotated by an external pull rod or drive mechanism, which rotates the butterfly plate around the valve shaft to achieve the opening and closing effect. Butterfly valves have the advantages of convenient and quick opening and closing, labor saving, low fluid resistance, and frequent operation. They are suitable for large-diameter pipelines and are therefore commonly used in marine piping systems.

[0003] High-pressure butterfly valves have a flat, disc-shaped butterfly plate. During long-term operation, the high pressure can cause deviations in the opening angle of the butterfly plate, requiring frequent maintenance and calibration. In existing technology, a monitoring instrument with a pressure gauge is installed at the rear end of the butterfly valve to monitor the water pressure passing through it and determine whether the valve's opening status is abnormal. However, this monitoring method has very low sensitivity and is affected by changes in water pressure. Furthermore, it cannot monitor for leakage when the butterfly plate is fully closed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an online monitoring instrument for ship high-pressure butterfly valves, thereby solving the problems mentioned in the background section. The present invention can intuitively monitor the opening angle of the butterfly plate and upload the monitoring results in real time, achieving high monitoring accuracy. It can also test the sealing performance of the butterfly valve after it is fully closed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an online monitoring instrument for a ship's high-pressure butterfly valve, comprising an instrument body and a high-pressure pipeline. The instrument body includes a first monitoring module, a second monitoring module, a valve body, and a controller. The first monitoring module has a front-end docking sleeve and a rear-end docking sleeve at its two ends, and the ends of both the front-end and rear-end docking sleeves are fixedly connected to the high-pressure pipeline via a first flange. The valve body is fixedly installed in the middle of the first monitoring module. A transmission rod is provided at the top of the valve body. Independent indicating components are installed inside both the front-end and rear-end docking sleeves. The end of each indicating component protrudes from the outside of either the front-end or rear-end docking sleeve and is connected to the controller at the bottom. A second monitoring module is installed on the side of the controller, and a wireless transmission module is installed on the top of the controller.

[0006] Furthermore, the valve body includes a valve sleeve and a butterfly plate, the bottom end of the transmission rod is inserted into the interior of the valve sleeve, the top of the butterfly plate is connected to a valve shaft, and the bottom of the butterfly plate is fitted with a bottom docking sleeve.

[0007] Furthermore, the top of the valve shaft is fixedly connected to the bottom of the transmission rod, the top of the transmission rod is connected to an external drive mechanism, a sealing ring is attached to the inner wall of the valve housing, and the butterfly plate is aligned and fitted with the sealing ring after the valve shaft rotates.

[0008] Furthermore, the first monitoring module includes an indicator component, a front-end docking sleeve, and a rear-end docking sleeve. The indicator component includes an annular bonding rod and an optical fiber. One end of the annular bonding rod is fixedly connected to the inner wall of the valve housing, and the other end of the annular bonding rod is equipped with a conduit.

[0009] Furthermore, the inner side of the annular bonding rod is provided with multiple light-transmitting holes, and each light-transmitting hole is connected to a corresponding optical fiber section.

[0010] Furthermore, the valve housing is provided with a second flange at both ends, and the valve housing is fixed to the middle of the first monitoring module by passing screws through the first flange and the second flange in sequence. The side of the butterfly plate contacts the inner wall of the annular fitting rod by rotation.

[0011] Furthermore, a control panel is installed at the front end of the controller, and a light source panel is provided on each side of the controller. The inner side of the light source panel is connected to the end of each optical fiber.

[0012] Furthermore, a support sleeve is installed on the top of the controller, a power supply line is installed inside the support sleeve, a laser is installed at the end of the power supply line, and the power supply line passes through the inside of the bottom connecting sleeve into the inner side of the butterfly plate, and the laser is embedded in the side of the butterfly plate.

[0013] Furthermore, the second monitoring module includes a drainage pipe and a shut-off valve. A water collection pipe is installed at one end of the top of the controller. The top of the water collection pipe is inserted into the interior of the high-pressure pipeline, and the bottom of the water collection pipe is connected to a drainage pipe and a water storage tank, respectively.

[0014] Furthermore, the sealing valve is installed at the end of the drainage pipe, and the drainage pipe, the water collection pipe, and the water storage tank are internally connected. The top of the water storage tank is made of transparent material.

[0015] The beneficial effects of the present invention: The present invention provides an online monitoring instrument for a ship high-pressure butterfly valve, comprising a monitoring instrument body, the monitoring instrument body comprising a high-pressure pipeline, a first monitoring module, a valve body, a controller, a second monitoring module, an indicating component, a front-end docking sleeve, a first flange, a valve housing, a second flange, a transmission rod, a sealing ring, a butterfly plate, a valve shaft, a bottom docking sleeve, a laser, a rear-end docking sleeve, a pressure gauge, a conduit, an annular bonding rod, a light-transmitting hole, an optical fiber, a wireless transmission module, a control panel, a light source panel, a support sleeve, a power supply line, a water collection pipe, a drainage pipe, a closing valve, and a water storage tank.

[0016] The ship's high-pressure butterfly valve online monitoring instrument has a first monitoring module installed at both ends of the butterfly valve. The first monitoring module can directly measure the rotation angle of the butterfly plate. This measurement is completely independent of the butterfly valve's opening structure. Therefore, it can compare the opening angle set on the opening mechanism with the measured opening angle of the butterfly plate, achieving a high-precision monitoring effect.

[0017] The ship's high-pressure butterfly valve online monitoring instrument transmits the rotation angle of the butterfly plate to the external controller in the form of an optical signal through an internal indicating component. The controller then transmits this angle signal to the control center via a wireless transmission module, allowing users to directly view the opening status of each butterfly valve from inside the main control room, making it simpler and more convenient to use.

[0018] The ship's high-pressure butterfly valve online monitoring instrument has a second monitoring module installed at one end of the controller. After the butterfly plate is completely closed by the external butterfly valve control structure, the second monitoring module can monitor the internal liquid flow in the pipeline behind the butterfly valve. Thus, when a leak occurs after the butterfly valve is closed, it can be visually observed from the outside, which facilitates timely maintenance and repair of the butterfly valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of an online monitoring instrument for ship high-pressure butterfly valves according to the present invention;

[0020] Figure 2 This is an exploded view of an online monitoring instrument for high-pressure butterfly valves on ships according to the present invention;

[0021] Figure 3 This is a schematic diagram of the indicating component of an online monitoring instrument for ship high-pressure butterfly valves according to the present invention;

[0022] Figure 4 This is a top sectional view of the valve body of an online monitoring instrument for a ship's high-pressure butterfly valve according to the present invention.

[0023] Figure 5 This is a schematic diagram of the controller part of an online monitoring instrument for ship high-pressure butterfly valves according to the present invention;

[0024] In the diagram: 1. High-pressure pipeline; 2. First monitoring module; 3. Valve body; 4. Controller; 5. Second monitoring module; 6. Indicator assembly; 7. Front-end docking sleeve; 8. First flange; 9. Valve housing; 10. Second flange; 11. Transmission rod; 12. Sealing ring; 13. Butterfly plate; 14. Valve shaft; 15. Bottom docking sleeve; 16. Laser; 17. Rear-end docking sleeve; 18. Pressure gauge; 19. Conduit; 20. Annular bonding rod; 21. Light-transmitting hole; 22. Fiber optic cable; 23. Wireless transmission module; 24. Control panel; 25. Light source panel; 26. Support sleeve; 27. Power supply line; 28. Water collection pipe; 29. ​​Drainage pipe; 30. Closing valve; 31. Water storage tank. Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1 to 5This invention provides a technical solution: an online monitoring instrument for a ship's high-pressure butterfly valve, comprising an instrument body and a high-pressure pipeline 1. The instrument body includes a first monitoring module 2, a second monitoring module 5, a valve body 3, and a controller 4. The first monitoring module 2 has a front-end docking sleeve 7 and a rear-end docking sleeve 17 at its two ends, and the ends of both the front-end and rear-end docking sleeves 7 and 17 are fixedly connected to the high-pressure pipeline 1 via a first flange 8. The valve body 3 is partially fixedly installed in the middle of the first monitoring module 2. A transmission rod 11 is provided on the top of the valve body 3. Independent indicating components 6 are installed inside both the front-end and rear-end docking sleeves 7 and 17. The end of the indicating component 6 protrudes from the outside of either the front-end or rear-end docking sleeve 7 and is connected to the controller 4 at the bottom. The second monitoring module 5 is installed on the side of the controller 4, and a wireless transmission device is installed on the top of the controller 4. The transmission module 23 requires a matching butterfly valve component for the ship's high-pressure butterfly valve online monitoring instrument. During installation, the butterfly valve part is first connected to the first monitoring module 2 of the monitoring instrument. This connection process is achieved by using screws to pass through the first flange 8 and the second flange 10 respectively for fixation. Then, the monitoring instrument body can be connected to the high-pressure pipeline 1 part through the detection module parts at both ends to complete the installation. Subsequently, the laser 16 embedded in the butterfly plate 13 is connected to the indicator component 6 installed in the first monitoring module 2. The light transmission is then displayed on the light source panel 25 on the side of the controller 4. The rotation angle of the internal butterfly plate 13 can be judged intuitively through the light source panel 25. By comparing this indication with the actual control range of the butterfly plate 13, the opening status of the butterfly valve can be monitored and judged. At the same time, the sealing effect of the butterfly valve when it is closed can be monitored and processed using the second monitoring module 5 at the other end of the controller 4.

[0027] In this embodiment, the valve body 3 includes a valve sleeve 9 and a butterfly plate 13. The bottom end of the transmission rod 11 is inserted into the interior of the valve sleeve 9. A valve shaft 14 is connected to the top of the butterfly plate 13, and a bottom mating sleeve 15 is installed at the bottom of the butterfly plate 13. The top of the valve shaft 14 is fixedly connected to the bottom of the transmission rod 11. The top of the transmission rod 11 is connected to an external drive mechanism. A sealing ring 12 is affixed to the inner wall of the valve sleeve 9. The butterfly plate 13 is partially aligned and fitted with the sealing ring 12 after the valve shaft 14 rotates. Specifically, ... The transmission rod 11 at the top is connected to an external pull rod or drive motor, which can control the internal valve shaft 14. The rotation of the valve shaft 14 drives the butterfly plate 13 to rotate, thereby controlling the opening space of the pipeline inside the valve housing 9 and achieving pressure control of the liquid flow inside the high-pressure pipeline 1. A sealing ring 12 is provided on the inner wall of the valve housing 9. After the butterfly plate 13 is completely in contact with the sealing ring 12 and sealed by the rotation of the transmission rod 11 and the valve shaft 14, the butterfly valve body can be sealed and the valve can be closed.

[0028] In this embodiment, the first monitoring module 2 includes an indicator component 6, a front-end docking sleeve 7, and a rear-end docking sleeve 17. The indicator component 6 includes an annular bonding rod 20 and an optical fiber 22. One end of the annular bonding rod 20 is fixedly connected to the inner wall of the valve housing 9, and the other end of the annular bonding rod 20 is equipped with a conduit 19. The inner side of the annular bonding rod 20 is provided with multiple light-transmitting holes 21, and each light-transmitting hole 21 is partially docked with a corresponding optical fiber 22. Both ends of the valve housing 9 are provided with second flanges 10, and the valve housing 9 is fixed to the middle of the first monitoring module 2 by using screws to pass through the first flange 8 and the second flange 10 in sequence. The side of the butterfly plate 13 contacts the inner wall of the annular bonding rod 20 by rotation. The second flange 10 is installed at both ends of the butterfly valve. A monitoring module 2 can directly measure the rotation angle of the butterfly plate 13. This measurement is completely independent of the opening structure of the butterfly valve. Therefore, the opening angle set on the opening mechanism can be compared with the measured opening angle of the butterfly plate 13, achieving a high-precision monitoring effect. Specifically, after controlling the butterfly plate 13 to rotate to the preset opening angle, the side of the butterfly plate 13 will dock with the inner side of the annular bonding rod 20. Since the laser 16 on the side of the butterfly plate 13 and the annular bonding rod 20 are on the same horizontal plane, as the butterfly plate 13 rotates, the laser 16 will also dock with the ends of different optical fibers 22 on the annular bonding rod 20. Then, the light source panel 25 at the other end of the optical fiber 22 indicates the rotation angle of the butterfly plate 13 at this time.

[0029] In this embodiment, a control panel 24 is installed at the front end of the controller 4, and light source panels 25 are provided on the sides of the controller 4. The inner side of the light source panel 25 is connected to the end of each optical fiber 22. A support sleeve 26 is installed on the top of the controller 4, and a power supply line 27 is installed inside the support sleeve 26. A laser 16 is installed at the end of the power supply line 27, and the power supply line 27 passes through the inside of the bottom connecting sleeve 15 into the inner side of the butterfly plate 13. The laser 16 is embedded in the side of the butterfly plate 13, and the rotation angle of the butterfly plate 13 is transmitted to the outer part of the controller 4 in the form of an optical signal through the internal indicating component 6. The signal is sent to the control center via the wireless transmission module 23 on the controller 4, allowing the opening status of each butterfly valve to be viewed directly in the main control room. This makes the process simpler and more convenient. Specifically, the position illuminated on the light source panel 25 indicates the rotation angle of the butterfly plate 13. This angle is compared with the preset angle of the butterfly plate 13 at the top adjustment. If the parameters are consistent, it indicates that the butterfly plate 13 is operating normally. If there is a difference between the preset opening angle of the butterfly plate 13 and the actual opening angle indicated by the light source panel 25, it means that the opening status of the butterfly valve is malfunctioning and needs to be repaired.

[0030] In this embodiment, the second monitoring module 5 includes a drainage pipe 29 and a shut-off valve 30. A water collection pipe 28 is installed at one end of the top of the controller 4. The top of the water collection pipe 28 is inserted into the interior of the high-pressure pipeline 1, and the bottom of the water collection pipe 28 is connected to the drainage pipe 29 and the water storage tank 31. The shut-off valve 30 is installed at the end of the drainage pipe 29. The drainage pipe 29, the water collection pipe 28, and the water storage tank 31 are internally connected. The top of the water storage tank 31 is made of transparent material. The second monitoring module 5 is installed at one end of the controller 4, and the butterfly plate 13 is completely closed by an external butterfly valve control structure. After closing, the second monitoring module 5 can monitor the internal liquid flow in the pipeline behind the butterfly valve. This allows for a direct external view of any leaks that occur after the butterfly valve is closed, facilitating timely maintenance and repair of the butterfly valve. Specifically, after the butterfly valve is completely closed, the closing valve 30 is opened to drain the liquid from the drain pipe 29 and the water storage tank 31. Then, the closing valve 30 is closed. After standing for a period of time, if water accumulates inside the water storage tank 31, it indicates that the butterfly valve is not properly sealed and requires maintenance and repair. If no water accumulates inside the water storage tank 31 or the rate of water accumulation is below the threshold, it indicates that the butterfly valve is in a normal closed state.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An online monitoring instrument for a ship's high-pressure butterfly valve, comprising an instrument body and a high-pressure pipeline (1), characterized in that: The monitoring instrument body includes a first monitoring module (2), a second monitoring module (5), a valve body (3), and a controller (4). The first monitoring module (2) is provided with a front-end docking sleeve (7) and a rear-end docking sleeve (17) at both ends, and the ends of the front-end docking sleeve (7) and the rear-end docking sleeve (17) are fixedly connected to the high-pressure pipeline (1) through a first flange (8). The valve body (3) is fixedly installed in the middle position of the first monitoring module (2). A transmission rod (11) is provided on the top of the valve body (3). The front-end docking sleeve (7) and the rear-end docking sleeve (17) are each equipped with an independent indicator component (6). The end of the device extends out from the outside of the front docking sleeve (7) or the rear docking sleeve (17), and the indicator component (6) is connected to the bottom controller (4). The controller (4) has a second monitoring module (5) installed on its side and a wireless transmission module (23) installed on its top. The first monitoring module (2) includes the indicator component (6), the front docking sleeve (7) and the rear docking sleeve (17). The indicator component (6) includes an annular bonding rod (20) and an optical fiber (22). The annular bonding rod (20) has multiple light-transmitting holes (21) on its inner side, and each light-transmitting hole (21) is connected to the corresponding optical fiber (22).

2. The online monitoring instrument for ship high-pressure butterfly valves according to claim 1, characterized in that: The valve body (3) includes a valve housing (9) and a butterfly plate (13). The bottom end of the transmission rod (11) is inserted into the interior of the valve housing (9). The top of the butterfly plate (13) is connected to a valve shaft (14), and the bottom of the butterfly plate (13) is fitted with a bottom docking sleeve (15).

3. The online monitoring instrument for ship high-pressure butterfly valves according to claim 2, characterized in that: The top of the valve shaft (14) is fixedly connected to the bottom of the transmission rod (11), the top of the transmission rod (11) is connected to the external drive mechanism, a sealing ring (12) is attached to the inner wall of the valve sleeve (9), and the butterfly plate (13) is partially aligned and attached to the sealing ring (12) after the valve shaft (14) rotates.

4. The online monitoring instrument for ship high-pressure butterfly valves according to claim 2, characterized in that: One end of the annular fitting rod (20) is fixedly connected to the inner wall of the valve sleeve (9), and the other end of the annular fitting rod (20) is equipped with a conduit (19). A pressure gauge (18) is installed on the top of the rear end connecting sleeve (17).

5. The online monitoring instrument for ship high-pressure butterfly valves according to claim 4, characterized in that: The valve housing (9) is provided with a second flange (10) at both ends. The valve housing (9) is fixed in the middle of the first monitoring module (2) by passing screws through the first flange (8) and the second flange (10) in sequence. The side of the butterfly plate (13) contacts the inner wall of the annular fitting rod (20) by rotation.

6. The online monitoring instrument for ship high-pressure butterfly valves according to claim 4, characterized in that: The controller (4) is equipped with a control panel (24) at the front end, and a light source panel (25) is provided on the side of the controller (4). The inner side of the light source panel (25) is connected to the end of each optical fiber (22).

7. The online monitoring instrument for ship high-pressure butterfly valves according to claim 6, characterized in that: The top of the controller (4) is equipped with a support sleeve (26), and a power supply line (27) is installed inside the support sleeve (26). A laser (16) is installed at the end of the power supply line (27), and the power supply line (27) passes through the bottom connecting sleeve (15) into the inside of the butterfly plate (13). The laser (16) is embedded in the side of the butterfly plate (13).

8. The online monitoring instrument for ship high-pressure butterfly valves according to claim 1, characterized in that: The second monitoring module (5) includes a drainage pipe (29) and a shut-off valve (30). A water collection pipe (28) is installed at one end of the top of the controller (4). The top of the water collection pipe (28) is inserted into the interior of the high-pressure pipeline (1), and the bottom of the water collection pipe (28) is connected to the drainage pipe (29) and the water storage tank (31).

9. The online monitoring instrument for a ship high-pressure butterfly valve according to claim 8, characterized in that: The closed valve (30) is installed at the end of the drain pipe (29). The drain pipe (29), the water collection pipe (28) and the water storage tank (31) are connected internally. The top of the water storage tank (31) is made of transparent material.

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