Valve positioning device for a gate valve

Abstract

The utility model discloses a valve positioning device for gate valve, and the positioning device includes support unit, detection unit, communication unit, execution unit, power unit and display unit, wherein, support unit includes support short bottom plate, support long bottom plate, bottom plate connecting plate, fixed side plate, adjustable side plate, baffle and support top plate, and support unit can adjust the actual size of valve positioning device through adjustable side plate to adapt to the actual installation space, and detection unit includes detection module, signal processing module and calibration module, and execution unit includes pivot and rotation seat, and display unit includes display screen, dial indicator and button. The valve positioning device for gate valve realizes the opening of valve through the angle of valve rotation to realize the modular design of simplifying the installation of valve positioning device, and the installation space of positioning device is optimized.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of valve stroke and positioning detection technology, and more specifically, relate to a valve positioning device for gate valves. Background Technology

[0002] Valve positioning devices are key accessories in industrial automation control systems, primarily used to drive and precisely control the opening position of regulating valves. They are typically used in conjunction with pneumatic, electric, or hydraulic actuators, receiving signals from the control system and converting them into corresponding mechanical displacements to drive the valve opening and closing. Among various valve types, gate valves are widely used in pipeline systems in industries such as petroleum, chemical, power, and water treatment due to their excellent shut-off performance. Traditional valve positioning devices are mostly used for regulating ball valves or butterfly valves, while their application for gate valves is relatively limited. However, as industrial systems increasingly demand higher control precision and safety, the need for gate valve control with positioning functions is growing.

[0003] Currently, positioning devices used in gate valves are mainly divided into two categories: ordinary electric valve positioners and intelligent electric valve positioners. Ordinary electric valve positioners operate based on analog signals and achieve valve position control through the principle of force balance. They have a simple structure but low accuracy. Intelligent electric valve positioners, on the other hand, have a built-in microprocessor and can realize functions such as automatic initialization, nonlinear compensation, fault diagnosis, and digital communication, which significantly improves control accuracy and system integration capabilities. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a valve positioning device for gate valves. A bracket unit allows the valve positioning device to be installed on the gate valve without affecting its normal operation. A detection unit outputs information, a communication unit transmits information, and the information is ultimately displayed on a display unit. An execution unit synchronously transmits gate valve rotation information to the detection unit.

[0005] To achieve the above objectives, this utility model provides a valve positioning device for a gate valve, comprising: The support unit includes a short base plate that is positioned above the gate valve and avoids gaps in the top hole of the gate valve; a long base plate that is spliced ​​to the short base plate and positioned on the other side of the top of the gate valve; a fixed side plate that is bolted to the outer side of the long base plate; and an adjustable side plate located on the back of the fixed side plate. The adjustable side plate can be adjusted in height on the back of the fixed side plate. The system includes a power supply unit that provides a stable power supply voltage, an execution unit located within the support unit, a detection unit connected to the power supply unit and the execution unit, a communication unit connected to the detection unit, and a display unit connected to the communication unit.

[0006] Furthermore, the detection unit includes a detection module, a signal processing module, and a calibration module.

[0007] Furthermore, the detection module uses a fiber optic displacement sensor, and the signal processing module incorporates the core circuit of the GD32VF103 MCU and the AD7746 capacitor-to-digital converter.

[0008] Furthermore, the power supply unit can output a voltage of 4.5-36V as needed.

[0009] Furthermore, the support unit also includes a base plate connecting plate located at the splicing position of the short base plate and the long base plate of the support, a retaining edge bolted to the side of the fixed side plate, and a support top plate connected to the top of the adjustable side plate on one side.

[0010] Furthermore, the top plate of the bracket has a clearance hole on the other side to avoid the execution unit.

[0011] Furthermore, the execution unit is characterized in that it further includes a rotating shaft connected to the detection unit on one side of its top and a rotating base connected to the other side of the bottom of the rotating shaft.

[0012] Furthermore, the rotating seat is designed to mimic the shape of the handwheel of the gate valve.

[0013] Furthermore, the rotating base has multiple locking screw holes on its side.

[0014] Furthermore, the display unit also includes a display screen located above the top outer surface of the display unit, a dial indicator located on one side below the top outer surface of the display unit, and a button located on the other side below the top outer surface of the display unit.

[0015] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects: 1. The device of this utility model enables the valve positioning device to be installed on the gate valve without affecting the normal use of the gate valve through the support unit. The detection unit outputs information, the communication unit transmits information and finally displays the information on the display unit. The execution unit synchronously transmits the gate valve rotation information to the detection unit.

[0016] 2. The device of this utility model, through the clearance holes of the fixed side plate and the adjustable side plate, can install the valve positioning device on the top of the gate valve without affecting the operation of the gate valve. The height of the valve positioning device can be adjusted by adjusting the installation position of the adjustable side plate on the fixed side plate. The positioning of the adjustable side plate is completed when adjusting the size by the stop installed on the fixed side plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the valve positioning device for a gate valve according to an embodiment of the present invention; Figure 2 This is a top view of a valve positioning device for a gate valve according to an embodiment of the present invention; Figure 3 This is a schematic block diagram of a valve positioning device for a gate valve according to an embodiment of the present invention.

[0018] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-gate valve, 2-support unit, 21-support short base plate, 22-support long base plate, 23-base plate connecting plate, 24-fixed side plate, 25-adjustable side plate, 26-side guard, 27-support top plate, 3-detection unit, 4-communication unit, 5-actuator unit, 6-power supply unit, 7-dial gauge, 35-control mounting plate, 36-knob. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0023] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] This novel embodiment provides a valve positioning device for a gate valve, such as... Figure 1 , Figure 3 As shown, the device includes a support unit 2, a detection unit 3, a communication unit 4, an execution unit 5, a power supply unit 6, and a display unit 7. The support unit 2 serves as an external support for this valve positioning device, connected to the top of the gate valve 1, and installed on the gate valve 1 without affecting its normal operation. The power supply unit 6 can output 4.5-36V voltage as needed and has a built-in power conditioning circuit to regulate the input power voltage to a stable supply voltage for the entire circuit system. The detection unit 3 is connected to the power supply unit 6 and includes a detection module, a signal processing module, and a calibration module. The detection module uses a fiber optic displacement sensor to measure the gate rotation angle. After sensing the gate's rotation, the measured data signal is transmitted to the signal processing module. The signal processing module incorporates a GD32VF103 MCU core circuit and an AD7746 capacitor-to-digital converter to digitize the data signal and transmit it to the calibration module. The calibration module processes the obtained data signal, eliminates nonlinear errors, and then transmits the signal to the communication unit 4. The communication unit 4 transmits the signal processed by the detection unit 3 to the display unit 7. Upon receiving this signal, the display unit 7 displays the signal content on the display screen 71 and the dial indicator 72. The execution unit 52, as the actuator of this valve positioning device, rotates along with the handwheel on top of the gate valve 1, inputting the rotation information of the gate valve 1 into the detection unit 3. This device, through a support unit, allows the valve positioning device to be installed on the gate valve without affecting its normal operation. Information is output by the detection unit, transmitted by the communication unit, and finally displayed on the display unit. The execution unit synchronously transmits the gate valve rotation information to the detection unit.

[0025] Specifically, in support unit 2, such as Figure 1As shown, the bracket includes a short base plate 21, a long base plate 22, a base plate connecting plate 23, a fixed side plate 24, an adjustable side plate 25, a retaining edge 26, and a top plate 27. The short base plate 21 has an arc-shaped clearance groove on its outer side and mounting holes corresponding to the gate valve 1 on its top. The long base plate 22 also has an arc-shaped clearance groove on its outer side and mounting holes corresponding to the gate valve 1 on its top. The short base plate 21 and the long base plate 22 can be joined together to form a single unit. The gate valve 1 is installed on top of the bracket via bolt connection. An L-shaped base plate connecting plate 23 is installed at the joint between the short base plate 21 and the long base plate 22 of the bracket. Mounting holes are provided on the sides and top of the base plate connecting plate 23. The base plate connecting plate 23 is installed on both sides of the joint via bolt connection. A fixed side plate 24 is installed on the mating side of the outer side of the long base plate 22 of the bracket. Multiple pairs of adjusting screw holes are provided on the surface of the fixed side plate 24. A flange 26 is installed on the fixed side plate 22. The side of the adjustable side plate 25 is connected by bolts. It is required that one side of the flange 26 is flush with the top surface of the fixed side plate 24, and the other side of the flange 26 protrudes from the back of the fixed side plate 24. The flange 26 can be used for adjusting and positioning the size of the adjustable side plate 25. The adjustable side plate 25 is installed on the back of the fixed side plate 24 with the back of the fixed side plate 24 and the side of the flange 26. The adjustable side plate 25 has multiple pairs of U-shaped slots that match the adjusting screw holes. The adjustable side plate 25 can be locked onto the fixed side plate 24 by bolt connection. The height of the adjustable side plate 25 on the back of the fixed side plate 24 can also be adjusted by adjusting the position of the bolt connection, thereby adjusting the height of the entire valve positioning device to adapt to the actual installation space. One side of the bracket top plate 27 is connected to the top of the adjustable side plate 25. The other side of the bracket top plate 27 has a clearance hole for the actuator 5. The rear side of the bracket top plate 27 is connected to the top of the adjustable side plate 25. The display unit 7 is installed on the top of the bracket top plate 27. The device of this utility model, through the clearance holes of the fixed side plate and the adjustable side plate, can install the valve positioning device on the top of the gate valve without affecting the operation of the gate valve. The height of the valve positioning device can be adjusted by adjusting the installation position of the adjustable side plate on the fixed side plate. The positioning of the adjustable side plate is completed when adjusting the size by the stop installed on the fixed side plate.

[0026] Specifically, such as Figure 1 , Figure 2As shown, the execution unit 5 includes a rotating shaft 51 and a rotating base 52. The display unit 7 includes a display screen 71, a dial indicator 72, and a button 73. The top side of the rotating shaft 51 is connected to the bottom of the display unit 7 and also to the detection unit 3. The other side of the bottom of the rotating shaft 51 is connected to the rotating base 52. The bottom of the rotating base 52 is designed to mimic the shape of the handwheel of the gate valve 1. Multiple locking screw holes (4 in this embodiment) are opened on the side of the rotating base 52. The rotating base 52 is locked to the handwheel of the gate valve 1 by multiple locking screws, and the rotation of the gate valve 1 is synchronously transferred to the rotating shaft 51. Then, the detection unit 3 converts it into a signal for transmission. The display screen 71 is provided above the top outer surface of the display unit 7. The dial indicator 72 is provided on one side below the top outer surface of the display unit 7. The button 73 is installed on the other side below the top outer surface of the display unit 7. The display screen 71 and the dial indicator 72 are used to display the measured data, and the button 73 is used to control the entire valve positioning device.

[0027] In another embodiment of this utility model, a method of using a valve positioning device for a gate valve is provided, comprising the following steps: First, check all the components of the valve positioning device to ensure that they are complete and undamaged. Then, measure the spatial dimensions of the installation area on top of the gate valve, including the flatness of the installation surface, the dimensions of the handwheel, and the distribution of surrounding obstacles.

[0028] Align the short base plate 21 and the long base plate 22 of the bracket with the mounting holes of the gate valve 1 and install them on the gate valve 1. Then install the other components in the bracket unit 2.

[0029] Based on the spatial dimensions of the installation area at the top of the gate valve, adjust the installation height of the adjustable side plate 25 on the fixed side plate 24 to a suitable position, and then lock the adjustable side plate 25 to fix the dimensions of the bracket unit 2.

[0030] The operator uses the handwheel on top of the gate valve 1 to display the current status data of the gate valve 1 on the display screen 71 and dial indicator 72 of the display unit 7.

[0031] The operator returns the handwheel on top of gate valve 1 to its original position, and the data on display screen 71 and dial gauge 72 returns to zero.

[0032] Regularly check the support unit 2 for looseness to prevent the device from shifting due to loosening after long-term operation. Start the calibration program every once in a while to recalibrate the detection unit and avoid sensor drift affecting measurement accuracy.

[0033] In summary, this valve positioning device for gate valves achieves the valve opening degree by measuring the valve rotation angle, and its modular design simplifies the installation of the valve positioning device and optimizes the installation space.

[0034] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve positioning device for a gate valve, characterized in that, include: The support unit (2) includes a short base plate (21) that is not open to the top hole of the gate valve (1) and is located on the top of the gate valve (1); a long base plate (22) that is spliced ​​with the short base plate (21) and is located on the other side of the top of the gate valve (1); a fixed side plate (24) that is bolted to the outer side of the long base plate (22); and an adjustable side plate (25) located on the back of the fixed side plate (24); the adjustable side plate (25) can be adjusted in height on the back of the fixed side plate (24); The power supply unit (6) provides a stable power supply voltage, the execution unit (5) is located in the support unit (2), the detection unit (3) is connected to the power supply unit (6) and the execution unit (5), the communication unit (4) is connected to the detection unit (3), and the display unit (7) is connected to the communication unit (4).

2. A valve positioning device for a gate valve according to claim 1, characterized in that, The detection unit (3) includes a detection module, a signal processing module, and a calibration module.

3. A valve positioning device for a gate valve according to claim 2, characterized in that, The detection module uses a fiber optic displacement sensor, and the signal processing module incorporates the core circuit of the GD32VF103 MCU and the AD7746 capacitor-to-digital converter.

4. A valve positioning device for a gate valve according to claim 3, characterized in that, The power supply unit (6) can output a voltage of 4.5-36V as needed.

5. A valve positioning device for a gate valve according to any one of claims 1-4, characterized in that, The support unit (2) also includes a bottom plate connecting plate (23) located at the splicing position of the short bottom plate (21) and the long bottom plate (22) of the support, a side guard (26) bolted to the side of the fixed side plate (24), and a support top plate (27) connected to the top of the adjustable side plate (25) on one side.

6. A valve positioning device for a gate valve according to claim 5, characterized in that, The top plate (27) of the bracket has a clearance hole on the other side to avoid the execution unit (5).

7. A valve positioning device for a gate valve according to any one of claims 1-4, characterized in that, The execution unit (5) also includes a rotating shaft (51) connected to the detection unit (3) on one side of the top and a rotating seat (52) connected to the other side of the bottom of the rotating shaft (51).

8. A valve positioning device for a gate valve according to claim 7, characterized in that, The rotating seat (52) is designed to mimic the shape of the handwheel of the gate valve (1).

9. A valve positioning device for a gate valve according to claim 8, characterized in that, The rotating base (52) has multiple locking screw holes on its side.

10. A valve positioning device for a gate valve according to any one of claims 1-4, characterized in that, The display unit (7) also includes a display screen (71) located above the top outer surface of the display unit (7), a dial gauge (72) located on one side below the top outer surface of the display unit (7), and a button (73) located on the other side below the top outer surface of the display unit (7).

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