Monitoring pressure regulating valve position detection device
By designing a valve position detection device that includes a probe and a detection switch, valve position detection is achieved using digital signals and magnetic switches, solving the problem of inaccurate valve position feedback in pressure regulating valve monitoring and reducing failure rate and maintenance costs.
Patent Information
- Application Number
- CN202420339713.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-02-23
AI Technical Summary
Existing pressure regulating valves suffer from inaccurate valve position feedback, and analog signals are susceptible to external interference, resulting in high failure rates, high purchase prices, and high maintenance costs.
Design a valve position detection device including a probe, a detection switch, and a sleeve. Utilize digital signals, the probe is connected to or fixedly connected to the valve switch, and combined with a magnetic or limit switch to realize valve position detection, reducing failure rate and maintenance costs.
It improves the stability of valve position detection and reduces equipment costs. The magnetic switch is inexpensive and easy to maintain, and is suitable for existing monitoring and pressure regulating valves and other valve position remote transmission systems.
Smart Images
Figure CN222316114U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve position detection, in particular to a valve position detection device for monitoring a pressure regulating valve. Background Art
[0002] As pipeline operation time increases, the problem of inaccurate position feedback from the monitoring and regulating valves used in distribution stations has become increasingly prominent. The RMG512 (DN80) monitoring and regulating valves used to provide position feedback to the host computer consist of a capacitive position sensor and a safety barrier. The sensor converts the valve position displacement signal through magnetic induction into a current signal, which is then converted to a standard 4-20mA signal via the safety barrier and transmitted to the PLC system.
[0003] However, analog signals are susceptible to external interference, leading to high failure rates, high purchase prices, and high maintenance costs. In practical applications, valve position detection only requires determining whether the valve is fully open, fully closed, or in between. Therefore, to reduce failure rates and maintenance costs, it is crucial to design a remote valve position control system with a low failure rate, low modification costs, and easy maintenance. Utility Model Content
[0004] The technical problem to be solved by the utility model is how to realize valve position detection and reduce equipment cost.
[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a device for monitoring the valve position detection of a pressure-regulating valve, comprising a probe rod, two detection switches and a sleeve, wherein the two detection switches are arranged at intervals along the length direction of the sleeve and are fixed to the inner wall or outer wall of the sleeve, one end of the probe rod is slidably arranged in the sleeve, and one end of the probe rod can be moved between the two detection switches, or moved to a position corresponding to any one of the detection switches and trigger the detection switch, and the other end of the probe rod extends out of the sleeve and is used to abut or be fixedly connected to the valve switch.
[0006] The beneficial effects of the present invention are as follows: the probe rod abuts or is fixedly connected to the valve switch, thereby moving along with the valve switch. When one end of the probe rod moves between the two detection switches, both detection switches are not triggered, thereby indicating that the valve switch is in an intermediate state. When one end of the probe rod moves to a point where one of the detection switches is triggered, the valve is in a fully open state or a fully closed state. The valve position detection device utilizes a detection card to detect the valve position, and uses a digital signal, which significantly improves the detection stability; the magnetic switch is easy to purchase, inexpensive, and has low maintenance costs. The valve position detection device can be used in existing monitoring pressure regulating valves, and can also be used in other remote transmission systems for monitoring the valve position of pressure regulating valves.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, it also includes a spring, and the other end of the probe rod is used to abut against the valve switch. The spring is located in the sleeve and is sleeved on the outside of one end of the probe rod. The middle part of the probe rod has a limiting protrusion, and the two ends of the spring respectively abut against the limiting protrusion and the end wall of the sleeve corresponding to one end of the probe rod.
[0009] The beneficial effect of adopting the above further solution is: the spring abuts against the limiting protrusion, applying elastic force to the limiting protrusion, and the probe abuts against the valve switch under the action of the spring elastic force, so that the probe and the valve switch move synchronously.
[0010] Furthermore, the probe rod is cylindrical.
[0011] Furthermore, the limiting protrusion is an annular plate.
[0012] Furthermore, the detection switch is a magnetic switch, and a magnetic block is fixed to one end of the probe rod.
[0013] The beneficial effect of adopting the above further solution is that when the magnetic block passes by the magnetic switch, the magnetic switch is triggered.
[0014] Alternatively, the detection switch is a limit switch, and a trigger protrusion is fixed to the side wall of one end of the probe rod.
[0015] The beneficial effect of adopting the above alternative solution is that the triggering protrusion triggers the limit switch through the mechanical structure.
[0016] Furthermore, the sleeve is a copper tube.
[0017] The beneficial effect of adopting the above further solution is that the sleeve is made of a copper tube, which can avoid interference with the detection of the magnetic switch.
[0018] Furthermore, the sleeve includes a main body and an extension disk. One end of the main body is open, and the extension disk is annular and fixedly connected to the outer wall of one end of the main body.
[0019] The beneficial effect of adopting the above further solution is that the sleeve is fixed to the outer wall of the valve housing of the valve to be tested through the extension disk, and abuts against the outer wall of the valve housing to limit its position.
[0020] Furthermore, the sleeve also includes an interface tube body, the outer diameter of the interface tube body is larger than the outer diameter of the main tube body, both ends of the interface tube body are open, and one end of the interface tube body is fixedly connected to one end of the main tube body.
[0021] The beneficial effect of adopting this further solution is that the outer diameter of the interface tube body is adapted to the through-hole in the valve housing of the valve to be tested. When installing the valve position detection device, the interface tube body is removed and inserted into the through-hole in the valve housing. The probe rod is extended into the valve housing to abut the valve switch, and the extension plate abuts the outer wall of the valve housing, thus achieving quick installation of the valve position detection device.
[0022] Furthermore, a controller is included, and both of the detection switches are communicatively connected to the controller.
[0023] The beneficial effect of adopting the above further solution is that the controller is used to obtain the detection signal of the detection switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a structural diagram of a device for monitoring the position of a pressure regulating valve according to the present invention;
[0025] Figure 2 This is a schematic structural diagram of the sleeve of the utility model.
[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0027] 1. Probe rod; 2. Detection switch; 3. Casing; 31. Main body; 32. Extension plate; 33. Interface body; 4. Spring; 5. Limiting protrusion; 6. Magnetic block; 100. Valve switch. DETAILED DESCRIPTION
[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0029] like Figure 1 and Figure 2 As shown, this embodiment provides a device for monitoring the valve position detection of a pressure-regulating valve, including a probe rod 1, two detection switches 2 and a sleeve 3. The two detection switches 2 are arranged at intervals along the length direction of the sleeve 3 and are fixed to the inner wall or outer wall of the sleeve 3. One end of the probe rod 1 is slidably set in the sleeve 3. One end of the probe rod 1 can be moved between the two detection switches 2, or moved to a position corresponding to any one of the detection switches 2 and trigger the detection switch 2. The other end of the probe rod 1 extends out of the sleeve 3 and is used to abut or be fixedly connected to the valve switch 100.
[0030] The probe rod 1 is in contact with or fixedly connected to the valve switch 100, so that it moves along with the valve switch 100. When one end of the probe rod 1 moves between the two detection switches 2, neither of the two detection switches 2 is triggered, which indicates that the valve switch 100 is in an intermediate state. When one end of the probe rod 1 moves to a point where one of the detection switches 2 is triggered, the valve is in a fully open state or a fully closed state. The valve position detection device uses a detection card 2 to detect the valve position, and uses a digital signal, which significantly improves the detection stability; the magnetic switch is easy to purchase, inexpensive, and has low maintenance costs. The valve position detection device can be used in existing monitoring pressure regulating valves, and can also be used in other remote transmission systems for monitoring the valve position of pressure regulating valves.
[0031] On the basis of the above technical solution, it also includes a spring 4. The other end of the probe rod 1 is used to abut against the valve switch 100. The spring 4 is located in the sleeve 3 and is sleeved on the outside of one end of the probe rod 1. The middle part of the probe rod 1 has a limiting protrusion 5. The two ends of the spring 4 respectively abut against the limiting protrusion 5 and the end wall of the sleeve 3 corresponding to one end of the probe rod 1.
[0032] The spring 4 abuts against the limiting protrusion 5 and applies elastic force to the limiting protrusion 5. The probe rod 1 abuts against the valve switch under the elastic force of the spring 4, so that the probe rod 1 moves synchronously with the valve switch.
[0033] On the basis of the above technical solution, the probe rod 1 is cylindrical.
[0034] On the basis of the above technical solution, the limiting protrusion 5 is an annular plate.
[0035] On the basis of the above technical solution, the detection switch 2 is a magnetic switch, and a magnetic block 6 is fixed to one end of the probe rod 1 .
[0036] When the magnetic block 6 passes the magnetic switch, the magnetic switch is triggered.
[0037] Alternatively, the detection switch 2 is a limit switch, and a trigger protrusion is fixed to the side wall of one end of the probe rod 1.
[0038] The trigger protrusion triggers the limit switch through a mechanical structure.
[0039] Alternatively, the detection switch 2 may also be replaced by other forms of trigger switches or sensors.
[0040] On the basis of the above technical solution, the sleeve 3 is a copper tube.
[0041] The sleeve 3 is made of copper to avoid interference with the detection of the magnetic switch.
[0042] Alternatively, the sleeve 3 is made of other non-magnetic materials.
[0043] Based on the above technical solution, the sleeve 3 includes a main body 31 and an extension disc 32 . One end of the main body 31 is open, and the extension disc 32 is annular and fixedly connected to the outer wall of one end of the main body 31 .
[0044] The sleeve 3 is fixed to the outer wall of the valve housing of the valve to be inspected through the extension plate 32 and abuts against the outer wall of the valve housing to limit its position.
[0045] Specifically, one end of the probe rod 1 extends from an open end of the main body 31 into the sleeve 3 and slides with the sleeve 3 .
[0046] On the basis of the above technical solution, the sleeve 3 also includes an interface tube body 33, the outer diameter of the interface tube body 33 is larger than the outer diameter of the main body 31, both ends of the interface tube body 33 are open, and one end of the interface tube body 33 is fixedly connected to one end of the main body 31.
[0047] The outer diameter of the interface tube 33 fits the through-hole in the valve housing of the valve to be tested. When installing the valve position detection device, the interface tube 33 is removed and inserted into the through-hole in the valve housing. The probe 1 extends into the valve housing to abut against the valve switch, and the extension plate 32 abuts against the outer wall of the valve housing, allowing for quick installation of the valve position detection device.
[0048] Specifically, the inner diameter of the interface pipe body 33 is equal to the inner diameter of the main pipe body 31 .
[0049] On the basis of the above technical solution, a controller is further included, and both of the two detection switches 2 are communicatively connected to the controller.
[0050] The controller is used to obtain the detection signal of the detection switch 2.
[0051] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0053] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0055] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A device for monitoring the valve position of a pressure regulating valve, characterized in that: The invention comprises a probe rod (1), two detection switches (2), a sleeve (3) and a spring (4); the two detection switches (2) are arranged at intervals along the length direction of the sleeve (3) and are fixed to the inner wall or the outer wall of the sleeve (3); one end of the probe rod (1) is slidably arranged in the sleeve (3); one end of the probe rod (1) can be moved between the two detection switches (2), or moved to a position corresponding to any one of the detection switches (2) and trigger the detection switch (2); The other end of the probe rod (1) is used to abut against the valve switch (100), the spring (4) is located in the sleeve (3) and is sleeved on the outside of one end of the probe rod (1), the middle part of the probe rod (1) is provided with a limiting protrusion (5), and the two ends of the spring (4) are respectively abutted against the limiting protrusion (5) and the end wall of the sleeve (3) corresponding to one end of the probe rod (1).
2. A monitoring pressure regulating valve position detection device according to claim 1, characterized in that: The probe rod (1) is cylindrical.
3. A monitoring pressure regulating valve position detection device according to claim 2, characterized in that: The limiting protrusion (5) is an annular plate.
4. A monitoring pressure regulating valve position detection device according to claim 1, characterized in that: The detection switch (2) is a magnetic switch, and a magnetic block (6) is fixed to one end of the probe rod (1).
5. The device for monitoring the valve position of a pressure regulating valve according to claim 1, characterized in that: The detection switch (2) is a limit switch, and a trigger protrusion is fixed to the side wall of one end of the probe rod (1).
6. A monitoring pressure regulating valve position detection device according to any one of claims 1 to 5, characterized in that: The sleeve (3) is a copper tube.
7. A monitoring pressure regulating valve position detection device according to any one of claims 1 to 5, characterized in that: The sleeve (3) comprises a main pipe body (31) and an extension disc (32); one end of the main pipe body (31) is open, and the extension disc (32) is annular and fixedly connected to the outer wall of one end of the main pipe body (31).
8. A monitoring pressure regulating valve position detection device according to claim 7, characterized in that: The sleeve (3) further comprises an interface pipe body (33), the outer diameter of the interface pipe body (33) being greater than the outer diameter of the main pipe body (31), both ends of the interface pipe body (33) being open, and one end of the interface pipe body (33) being fixedly connected to one end of the main pipe body (31).
9. A monitoring pressure regulating valve position detection device according to any one of claims 1 to 5, characterized in that: It also includes a controller, and the two detection switches (2) are both communicatively connected to the controller.