Valve opening display device

Abstract

The utility model relates to a valve opening display device, and relates to the technical field of valves. The valve opening degree display device comprises a valve body, a data acquisition mechanism, a data exchange mechanism and a display mechanism. The valve body comprises a valve rod, the valve body is opened when the valve body completely retracts, and the valve body is closed when the valve body completely stretches out. And a data acquisition mechanism. The data acquisition mechanism is connected with the valve body. And the data acquisition mechanism acquires the extension length of the valve rod and the axial pressure of the valve rod. And the data exchange mechanism is connected with the data acquisition mechanism. The data exchange mechanism converts the extension length of the valve rod and the axial pressure of the valve rod into a first signal. The display mechanism is electrically connected with the data exchange mechanism. The display mechanism receives the first signal and converts the first signal into a second signal. According to the valve opening degree display device, the valve position state of the valve can be displayed, abnormal states such as non-full opening or non-full closing of the valve caused by valve jamming are displayed, and the situation that the valve is damaged due to excessive forced opening and closing actions on the valve after the valve is jammed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, in particular to a valve opening display device. BACKGROUND

[0002] Oil and gas field production well station uses various valves in the natural gas production process, and the valve is stuck after long-term use due to fluid impurities, corrosion, impact and various reasons.

[0003] Because the existing valve can only display full opening and full closing, cannot display the valve position switch stroke opening process or half opening and half closing remotely, when the valve is stuck, the switch action cannot be stopped to protect the valve, and the valve is still stuck to the valve, causing the valve plate, valve groove damage, valve leakage and other problems. UTILITY MODEL CONTENTS

[0004] The utility model provides a valve opening display device, can show the valve position state of valve, display the abnormal state such as valve non full opening or non full closing caused by valve sticking, avoid the excessive forced opening and closing action of valve after valve sticking and cause valve damage.

[0005] The embodiment of the application provides a valve opening display device, which comprises: a valve body comprising a valve rod, the valve body is opened when the valve body is completely retracted, and the valve body is closed when the valve body is completely extended; a data acquisition mechanism connected with the valve body, the data acquisition mechanism acquires the extension length of the valve rod and the pressure acting on the axial direction of the valve rod; a data exchange mechanism connected with the data acquisition mechanism, the data exchange mechanism converts the extension length of the valve rod and the pressure acting on the axial direction of the valve rod into a first signal; and a display mechanism electrically connected with the data exchange mechanism, the display mechanism receives the first signal and converts the first signal into a second signal according to the first signal.

[0006] According to the foregoing embodiment of the application, the data acquisition mechanism comprises: a sleeve connected with the valve body, the valve rod is sleeved in the sleeve; a telescopic cylinder arranged in the sleeve, the telescopic cylinder comprises a telescopic rod and an oil cylinder matched with each other, one end of the telescopic rod abuts against the valve rod; and a liquid filling assembly arranged in the sleeve, comprising a liquid filling chamber and a diaphragm, the diaphragm is arranged in the liquid filling chamber, the oil cylinder is fixedly connected with the liquid filling chamber, and the liquid filling chamber is in communication with the oil cavity of the oil cylinder, the data exchange mechanism is connected with the liquid filling assembly, and the thickness direction of the diaphragm is parallel to the length direction of the sleeve.

[0007] According to any one of the foregoing embodiments of the application, the liquid filling assembly comprises a first sub-chamber and a second sub-chamber arranged in sequence along the length direction of the sleeve, the diaphragm is arranged between the first sub-chamber and the second sub-chamber, the first sub-chamber is in communication with the oil cavity, and the second sub-chamber is connected with the data exchange mechanism.

[0008] According to any one of the preceding embodiments of the application, the telescopic cylinder further comprises a reset member, which is arranged between the telescopic rod and the oil cylinder.

[0009] According to any one of the preceding embodiments of the application, the data acquisition mechanism further comprises a positioning plate, which is arranged in the sleeve, the positioning plate is provided with a through hole, the telescopic rod is arranged in the through hole, and the telescopic rod is fixedly connected with the positioning plate, the plate surface of the positioning plate is perpendicular to the length direction of the sleeve.

[0010] According to any one of the preceding embodiments of the application, the data acquisition mechanism further comprises a limiting member, which is arranged at one end of the sleeve facing the valve rod, the limiting member is provided with a limiting portion at one end in the extending direction of the limiting member, the limiting portion extends into the sleeve, and the limiting member is movably connected with the sleeve along the extending direction of the limiting member, the extending direction of the limiting member is perpendicular to the length direction of the sleeve.

[0011] According to any one of the preceding embodiments of the application, the data exchange mechanism comprises a displacement sensor and a pressure sensor, the displacement sensor is connected with the diaphragm, and the pressure sensor is connected with the second sub-chamber.

[0012] According to any one of the preceding embodiments of the application, the first signal is a voltage signal or a current signal, or the first signal is digital protocol information.

[0013] According to any one of the preceding embodiments of the application, the second signal comprises a valve body full opening display signal, a valve body full closing display signal, a valve body non-full opening display signal, and a valve body non-full closing display signal.

[0014] According to any one of the preceding embodiments of the application, the valve opening degree display device further comprises an alarm mechanism, which is electrically connected with the display mechanism.

[0015] According to the valve opening degree display device, the opening and closing state of the valve body is realized through the extension and retraction of the valve rod. When the valve rod is fully retracted, the valve body is in an open state; when the valve rod is fully extended, the valve body is in a closed state; and when the valve rod cannot be fully extended or retracted, the valve body is in an intermediate state. The data acquisition mechanism is connected with the valve body and is used for monitoring the state of the valve rod in real time. Specifically, the data acquisition mechanism detects the opening degree state of the valve body by acquiring the extension length of the valve rod and the pressure borne by the valve rod in the axial direction. The data exchange mechanism is connected with the data acquisition mechanism and is responsible for converting the acquired data (the extension length of the valve rod and the pressure borne by the valve rod in the axial direction) into a first signal. The first signal can be an electric signal, a digital signal or other signal forms suitable for transmission and processing. The display mechanism is electrically connected with the data exchange mechanism and receives the first signal. Then, the display mechanism converts the first signal into a second signal, i.e., user-readable information, according to the content of the first signal. The second signal can be a digital display (such as a percentage opening degree), a graphical display (such as a progress bar) or an audible and light alarm signal (when it is detected that the valve body is in a jam or an abnormality in a non-full opening or non-full closing state). Through real-time monitoring and display of the opening degree state of the valve body, the operator can more accurately control the opening and closing action of the valve body, thereby avoiding the problem of damage to the valve body caused by excessive forced opening and closing. BRIEF DESCRIPTION OF DRAWINGS

[0016] In the following, the utility model will be described in more detail based on the embodiments and with reference to the drawings.

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a valve opening degree display device according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a structural schematic diagram of a data acquisition mechanism in an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a structural schematic diagram of a liquid filling assembly in an embodiment of the present application.

[0020] Reference signs:

[0021] 1000 - valve opening degree display device;

[0022] 100 - valve body; 110 - valve rod;

[0023] 200 - data acquisition mechanism; 210 - sleeve; 220 - telescopic cylinder; 221 - telescopic rod; 222 - oil cylinder; 223 - reset member; 230 - liquid filling assembly; 231 - liquid filling chamber; 231a - first sub-chamber; 231b - second sub-chamber; 232 - diaphragm; 240 - positioning plate; 250 - limiting member; 251 - limiting portion;

[0024] 300 - data exchange mechanism;

[0025] 400 - Display mechanism. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] In related technologies, valve opening degree refers to the extent to which a valve is opened, also known as the valve's "stroke" or "lift," which refers to the distance or angle by which the valve core or valve plate moves relative to the closed position when the valve is in the open state. Valve opening degree is usually expressed as a percentage, for example, 50% opening degree means the valve is in a half-open state. In some cases, a specific stroke distance or angle may also be used to express the valve opening degree.

[0028] This utility model provides a valve opening display device that can display the valve position status and show abnormal states such as valve not being fully open or not fully closed caused by valve jamming, so as to avoid valve damage caused by excessive forced opening and closing after valve jamming.

[0029] Figure 1 This is a schematic diagram of the structure of a valve opening display device according to an embodiment of this application; Figure 2 This is a schematic diagram of the data acquisition mechanism in one embodiment of this application. Figures 1-2 As shown, an embodiment of this application provides a valve opening display device 1000. The valve opening display device 1000 includes a valve body 100, a data acquisition mechanism 200, a data exchange mechanism 300, and a display mechanism 400. The valve body 100 includes a valve stem 110; when the valve body 100 is fully retracted, the valve body 100 is open; when the valve body 100 is fully extended, the valve body 100 is closed. The data acquisition mechanism 200 is connected to the valve body 100. The data acquisition mechanism 200 acquires the extension length of the valve stem 110 and the axial pressure on the valve stem 110. The data exchange mechanism 300 is connected to the data acquisition mechanism 200. The data exchange mechanism 300 converts the extension length of the valve stem 110 and the axial pressure on the valve stem 110 into a first signal. The display mechanism 400 is electrically connected to the data exchange mechanism 300. The display mechanism 400 receives the first signal and converts it into a second signal based on the first signal.

[0030] According to the valve opening degree display device 1000, the opening and closing state of the valve body 100 is realized by the extension and retraction of the valve stem 110. When the valve stem 110 is completely retracted, the valve body 100 is in an open state; when the valve stem 110 is completely extended, the valve body 100 is in a closed state; when the valve stem 110 cannot be completely extended or retracted, the valve body 100 is in an intermediate state. The data acquisition mechanism 200 is connected with the valve body 100, and is used for monitoring the state of the valve stem 110 in real time. Specifically, the data acquisition mechanism 200 detects the opening degree state of the valve body 100 by acquiring the extension length of the valve stem 110 and the axial pressure borne by the valve stem 110. The data exchange mechanism 300 is connected with the data acquisition mechanism 200, and is responsible for converting the acquired data (the extension length of the valve stem 110 and the axial pressure borne by the valve stem 110) into a first signal. The first signal can be an electrical signal, a digital signal or other suitable signal form for transmission and processing. The display mechanism 400 is electrically connected with the data exchange mechanism 300, and receives the first signal. Then, the display mechanism 400 converts the first signal into a second signal, i.e., user-readable information, according to the content of the first signal. The second signal can be a digital display (such as a percentage opening degree), a graphical display (such as a progress bar) or an audible and light alarm signal (when it is detected that the valve body 100 is in a stuck or abnormal state of non-full opening or non-full closing). Through real-time monitoring and display of the opening degree state of the valve body 100, the operator can more accurately control the opening and closing action of the valve body 100, and avoid damage to the valve body 100 caused by excessive forced opening and closing.

[0031] As shown in Figure 2 some embodiments, the telescopic cylinder 220 further includes a reset member 223. The reset member 223 is arranged between the telescopic rod 221 and the oil cylinder 222. When the telescopic rod 221 is pushed by the thrust force of the valve stem 110 extension, the reset member 223 can restore the telescopic rod 221 to the initial position, so that the telescopic cylinder 220 can always abut against the valve stem 110, and ensure stable control and accurate measurement of the extension length of the valve stem 110. Optionally, the reset member 223 can be a spring or a spring sheet.

[0032] As shown in Figure 2 some embodiments, the data acquisition mechanism 200 further includes a positioning plate 240. The positioning plate 240 is arranged in the sleeve 210, and the positioning plate 240 is provided with a through hole. The telescopic rod 221 passes through the through hole, and the telescopic rod 221 is fixedly connected with the positioning plate 240. The plate surface of the positioning plate 240 intersects with the length direction of the sleeve 210.

[0033] It should be noted that the positioning plate 240 is used to ensure the stability of the telescopic rod 221 during the movement of the telescopic rod 221 in the sleeve 210, and to reduce the possibility of radial movement. The position and movement range of the telescopic rod 221 can be accurately controlled, and the accuracy of data acquisition can be improved. It can be understood that the positioning plate 240 is matched with the cross-sectional shape of the sleeve 210, and the stability of the telescopic rod 221 during movement can be ensured. The plate surface of the positioning plate 240 is generally designed according to the cross-sectional shape of the sleeve 210. If the cross section of the sleeve 210 is circular, the plate surface of the positioning plate 240 is also circular. If the cross section of the sleeve 210 is rectangular or other shapes, the shape of the positioning plate 240 should also be adjusted accordingly.

[0034] In the embodiment, when the valve stem 110 drives the telescopic rod 221 to move in the sleeve 210 along the axial direction of the telescopic rod 221 during the telescopic process, the positioning plate 240 can prevent the telescopic rod 221 from moving radially during the movement, thereby maintaining the stable movement of the telescopic rod 221 along the predetermined axial direction.

[0035] As shown in Figure 2 In some embodiments, the data acquisition mechanism 200 further comprises a limiting piece 250. The limiting piece 250 is arranged at one end of the sleeve 210 facing the valve stem 110. The limiting piece 250 is provided with a limiting portion 251 at one end of the extending direction of the limiting piece 250. The limiting portion 251 is arranged in the sleeve 210, and the limiting piece 250 is movably connected with the sleeve 210 along the extending direction of the limiting piece 250. The extending direction of the limiting piece 250 is perpendicular to the length direction of the sleeve 210.

[0036] In the embodiment, when it is necessary to mechanically limit the valve stem 110, the limiting piece 250 can be moved relative to the sleeve 210 along the extending direction of the limiting piece 250, so that the limiting portion 251 of the limiting piece 250 mechanically limits the valve stem 110.

[0037] In some optional embodiments, the limiting portion 251 is in the shape of U. The U-shaped limiting portion 251 can form a close wrapping relationship with the valve stem 110, so as to limit the movement freedom degree of the valve stem 110 along the axial direction of the valve stem 110.

[0038] As shown in Figures 2-3As shown, in some embodiments, the data acquisition mechanism 200 includes a sleeve 210, a telescopic cylinder 220, and a filling assembly 230. The sleeve 210 is connected to the valve body 100. The valve stem 110 is sleeved inside the sleeve 210. The telescopic cylinder 220 is disposed inside the sleeve 210. The telescopic cylinder 220 includes a telescopic rod 221 and a hydraulic cylinder 222 that cooperate with each other. One end of the telescopic rod 221 abuts against the valve stem 110. The filling assembly 230 is disposed inside the sleeve 210. The filling assembly 230 includes a filling chamber 231 and a diaphragm 232. The diaphragm 232 is disposed inside the filling chamber 231. The hydraulic cylinder 222 is fixedly connected to the filling chamber 231, and the filling chamber 231 communicates with the oil chamber of the hydraulic cylinder 222. The data exchange mechanism 300 is connected to the filling assembly 230. The thickness direction of the diaphragm 232 is parallel to the length direction of the sleeve 210.

[0039] In this embodiment, when the valve stem 110 of the valve body 100 is in the retracted state, the valve body 100 is closed, and the diaphragm 232 of the filling assembly 230 is in a balanced state and is not subjected to additional pressure. When the valve body 100 needs to be opened, the valve stem 110 extends. During the extension process, the valve stem 110 will push and move. Since the oil cylinder 222 is connected to the filling chamber 231, the oil pressure in the oil cylinder 222 will also change accordingly, which will change the oil pressure in the filling chamber 231. The diaphragm 232 of the filling chamber 231 will be displaced under the action of oil pressure. The data exchange mechanism 300 can capture the oil pressure change of the filling chamber 231 and the displacement of the diaphragm 232 in real time and convert them into a transmittable first signal form. For example, the data exchange mechanism 300 uses built-in sensors (such as pressure sensors, displacement sensors, etc.) to convert these physical quantities into electrical signals or other transmittable signal forms (i.e., the first signal). Then the data exchange mechanism 300 transmits the first signal to the display mechanism 400. After receiving the signal, the display mechanism 400 decodes and processes it, converting the first signal into user-readable information (i.e., the second signal), such as digital display, graphic display, or audible and visual alarm. This allows operators to intuitively understand the valve's current status and opening degree, improving operational accuracy and safety.

[0040] like Figure 3 As shown, in some embodiments, the filling assembly 230 includes a first sub-chamber 231a and a second sub-chamber 231b sequentially disposed along the length of the sleeve 210. A membrane 232 is disposed between the first sub-chamber 231a and the second sub-chamber 231b. The first sub-chamber 231a is connected to the oil chamber, and the second sub-chamber 231b is connected to the data exchange mechanism 300.

[0041] In this embodiment, the first sub-chamber 231a is connected to the oil chamber of the oil cylinder 222, forming a closed hydraulic system. When the oil pressure in the oil cylinder 222 changes, this change will be transmitted to the first sub-chamber 231a, thereby pushing the diaphragm 232 to displace. Due to the isolation effect of the diaphragm 232, the change in oil pressure in the first sub-chamber 231a will push the diaphragm 232 to move towards the second sub-chamber 231b. The data exchange mechanism 300 connected to the second sub-chamber 231b can capture the displacement of the diaphragm 232 and the change in oil pressure of the second sub-chamber 231b. For example, the pressure sensor or displacement conversion device of the data exchange mechanism 300 converts the oil pressure change of the second sub-chamber 231b and the displacement of the diaphragm 232 into a first signal in the form of an electrical signal or other transmittable signal, and transmits the first signal to the display mechanism 400.

[0042] In some embodiments, the data exchange mechanism 300 includes a displacement sensor connected to the diaphragm 232 and a pressure sensor connected to the second sub-chamber 231b.

[0043] In this embodiment, the displacement sensor of the data exchange mechanism converts the displacement of the diaphragm 232 into an electrical signal for output, and the pressure sensor converts the pressure of the liquid in the second sub-chamber 231b into an electrical signal for output, achieving real-time monitoring and data transmission of multiple physical quantities.

[0044] In some embodiments, the first signal is a voltage signal or a current signal, or the first signal is digital protocol information.

[0045] In some embodiments, the second signal includes a full open display signal of the valve body 100, a full closed display signal of the valve body 100, a non-full open display signal of the valve body 100, and a non-full closed display signal of the valve body 100.

[0046] In this embodiment, when the valve body 100 is fully open, the display mechanism 400 of the valve opening display device 1000 generates a full open display signal. When the valve body 100 is fully closed, the display mechanism 400 generates a full closed display signal. When the valve is in a partially open state, the display mechanism 400 generates a non-full open display signal. When the valve body 100 is in a partially closed state, the display mechanism 400 generates a non-full closed display signal. These signals provide intuitive feedback to the operator on the current state of the valve body 100. If the state of the valve body 100 does not match the expectation, these signals can serve as a warning of a malfunction, allowing the operator to discover and solve the problem in a timely manner and prevent potential safety hazards.

[0047] In some embodiments, the valve opening display device 1000 further includes an alarm mechanism electrically connected to the display mechanism 400.

[0048] When the opening degree of the valve body 100 reaches the preset limit value (such as full opening, full closing or a certain specific intermediate position), the display mechanism 400 will receive the corresponding signal and trigger the alarm mechanism. After receiving the trigger signal, the alarm mechanism will immediately start the alarm function, such as sounding, flashing light, etc., to remind the operator to pay attention and take corresponding measures. This helps to prevent safety accidents caused by valve body 100 failure or misoperation, and ensures the smooth progress of the production process.

[0049] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A valve opening display device, characterized by comprising: The valve body includes a valve stem, and the valve body is opened when it is fully retracted and closed when it is fully extended. The data acquisition mechanism is connected to the valve body and acquires the extension length of the valve stem and the axial pressure received by the valve stem. The data exchange mechanism is connected to the data acquisition mechanism and converts the extension length of the valve stem and the axial pressure received by the valve stem into a first signal. The display mechanism is electrically connected to the data exchange mechanism, receives the first signal, and converts the first signal into a second signal. The data acquisition mechanism includes:

2. The valve opening display device according to claim 1, characterized by a sleeve connected to the valve body, the valve stem being sleeved in the sleeve; a telescopic cylinder arranged in the sleeve, the telescopic cylinder including a telescopic rod and an oil cylinder that cooperate with each other, one end of the telescopic rod abutting against the valve stem; and a liquid filling assembly arranged in the sleeve, including a liquid filling chamber and a diaphragm, the diaphragm being arranged in the liquid filling chamber, the oil cylinder being fixedly connected to the liquid filling chamber, the liquid filling chamber being in communication with an oil cavity of the oil cylinder, the data exchange mechanism being connected to the liquid filling assembly, and the thickness direction of the diaphragm being parallel to the length direction of the sleeve. The liquid filling assembly includes a first sub-chamber and a second sub-chamber arranged successively along the length direction of the sleeve, the diaphragm being arranged between the first sub-chamber and the second sub-chamber, the first sub-chamber being in communication with the oil cavity, and the second sub-chamber being connected to the data exchange mechanism.

3. The valve opening display device according to claim 2, characterized by The telescopic cylinder further includes a reset member arranged between the telescopic rod and the oil cylinder.

4. The valve opening display device according to claim 2 or 3, characterized by The data acquisition mechanism further includes a positioning plate arranged in the sleeve, the positioning plate being provided with a through hole, the telescopic rod being arranged in the through hole, and the telescopic rod being fixedly connected to the positioning plate, the plate surface of the positioning plate intersecting the length direction of the sleeve.

5. The valve opening display device according to claim 2, wherein The data acquisition mechanism further includes a limiting member arranged at one end of the sleeve facing the valve stem, the limiting member being provided with a limiting portion at one end in the extending direction of the limiting member, the limiting portion extending into the sleeve, and the limiting member being movably connected to the sleeve along the extending direction of the limiting member, the extending direction of the limiting member being perpendicular to the length direction of the sleeve.

6. The valve opening display device according to claim 2, wherein The data exchange mechanism includes a displacement sensor and a pressure sensor, the displacement sensor being connected to the diaphragm, and the pressure sensor being connected to the second sub-chamber.

7. The valve opening display device according to claim 3, wherein The first signal is a voltage signal or a current signal, or the first signal is digital protocol information.

8. The valve opening display device according to claim 1, characterized by The second signal includes a full opening display signal of the valve body, a full closing display signal of the valve body, a non-full opening display signal of the valve body, and a non-full closing display signal of the valve body.

9. The valve opening display device according to claim 1, characterized by The valve opening degree display device further includes an alarm mechanism electrically connected to the display mechanism.

10. The valve opening display device according to claim 1, characterized by ​

Images