Regulating valve for controlling liquid flow

Abstract

The utility model relates to the technical field of fluid machinery, in particular to a regulating valve for controlling liquid flow, which comprises a valve body, a valve groove is arranged on the outer wall of the valve body, one side of the valve body is fixedly connected with a support plate, one side of the support plate is provided with a positioner, and one side of the positioner is connected with an electric push rod through a connecting column. An electric push rod drives a driving rod and a laser emitter to move, X-rays emitted by the laser emitter are emitted through a laser emission head and then received by a laser emission plate, the moving distance of the driving rod is judged by measuring the length of the X-rays, and the moving distance of the driving rod is converted into the moving length of a rack. Through the corresponding relation between the linear motion distance of the rack and the rotation angle of the tooth edge, the rotation angle of the tooth edge is judged, then the rotation angle of the movable valve plate is judged, and the effect of accurately controlling the movable valve plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid machinery, in particular to a regulating valve for controlling liquid flow. Background Art

[0002] A regulating valve is a device used to control the flow of fluids. It is commonly used in industrial control systems. Regulating valves that control the flow of liquids are widely used in chemical, petroleum, electric power, metallurgy, water treatment, medicine and other industrial fields. In the production process, regulating valves can help control the flow rate of fluids, which is crucial to maintaining the stability and efficiency of the production process.

[0003] In the existing regulating valves for controlling liquid flow, the opening of the regulating valve is generally controlled by manually opening or closing the regulating valve by the staff. However, the manual operation of the regulating valve opening cannot determine the precise opening between the regulating valves, which will lead to inaccurate flow control. There is a certain relationship between the opening of the regulating valve and the flow. When the opening is too large or too small, the liquid flow will exceed or fall below the required range, making the system operation unstable, thereby affecting production efficiency and product quality. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a regulating valve for controlling liquid flow.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A regulating valve for controlling liquid flow, comprising a valve body, an outer wall of the valve body is provided with a valve slot, one side of the valve body is fixedly connected to a support plate, one side of the support plate is provided with a positioner, one side of the positioner is connected to an electric push rod through a connecting column, a side wall of the valve body is fixedly connected to a connecting plate, an output end of the electric push rod penetrates the connecting plate and extends into the valve slot and is connected to a driving rod, and a rack is fixedly connected to the outer surface of the driving rod;

[0007] A displacement sensor is provided at one end of the driving rod close to the connecting plate, one side of the displacement sensor is connected to a laser transmitter, one side of the laser transmitter is connected to a laser transmitter head, and one side of the valve body is fixedly connected to a laser receiving plate that matches the laser transmitter head.

[0008] Preferably, a valve cavity is opened in the middle of the valve body, a gasket is fixedly connected to the inner wall of the valve cavity, a movable valve plate is movably connected to the gasket, a toothed edge meshing with the rack is opened on the outer side of the movable valve plate, and a static valve plate is fixedly connected on the gasket and below the movable valve plate.

[0009] Preferably, an upper connecting valve seat is fixedly connected to the top of the valve body via an upper connecting flange, a liquid inlet channel is opened in the middle of the upper connecting valve seat, and the liquid inlet channel extends into the valve body and communicates with the valve cavity.

[0010] Preferably, a lower connecting valve seat is fixedly connected to the bottom of the valve body via a lower connecting flange, a liquid outlet channel is opened in the middle of the lower connecting valve seat, and the liquid outlet channel extends into the valve body and communicates with the valve cavity.

[0011] Preferably, a range scale is fixedly connected to the outer wall of the valve body.

[0012] The beneficial effects of the utility model are:

[0013] The electric push rod drives the driving rod and the laser emitter to move, and the X-rays emitted by the laser emitter are emitted through the laser emission head and then received by the laser emission board. The distance moved by the driving rod is determined by measuring the length of the X-rays, and the distance moved by the driving rod is converted into the length moved by the rack. The corresponding relationship between the linear motion distance of the rack and the rotation angle of the tooth edge is used to determine the rotation angle of the tooth edge, and then the rotation angle of the movable valve plate is determined, thereby achieving the effect of precise control of the movable valve plate, and accurately adjusting the flow rate of the liquid fluid according to demand, avoiding excessive or insufficient flow, reducing energy waste, making the control valve respond faster, and further improving the efficiency of the system and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a regulating valve for controlling liquid flow proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of a top view of a regulating valve for controlling liquid flow proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the valve body structure of a regulating valve for controlling liquid flow proposed by the utility model;

[0017] Figure 4 A regulating valve for controlling liquid flow proposed by the utility model Figure 3 Schematic diagram of the structure at the enlarged point A in the middle.

[0018] In the figure:

[0019] 1. Valve body; 2. Valve slot; 3. Support plate; 4. Positioner; 5. Electric push rod; 6. Drive rod; 7. Connecting plate; 8. Displacement sensor; 9. Laser transmitter; 10. Laser transmitter head; 11. Laser receiving board; 12. Measuring range; 13. Valve cavity; 14. Moving valve disc; 15. Static valve disc; 16. Upper connecting flange; 17. Upper connecting valve seat; 18. Lower connecting flange; 19. Lower connecting valve seat. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0023] Example:

[0024] Reference Figure 1-4 A regulating valve for controlling liquid flow, comprising a valve body 1, an outer wall of the valve body 1 is provided with a valve slot 2, one side of the valve body 1 is fixedly connected with a support plate 3, one side of the support plate 3 is provided with a positioner 4, one side of the positioner 4 is connected with an electric push rod 5 through a connecting column, a side wall of the valve body 1 is fixedly connected with a connecting plate 7, an output end of the electric push rod 5 passes through the connecting plate 7 and extends into the valve slot 2 and is connected with a driving rod 6, and a rack is fixedly connected to the outer surface of the driving rod 6;

[0025] A displacement sensor 8 is provided at one end of the driving rod 6 close to the connecting plate 7, one side of the displacement sensor 8 is connected to a laser emitter 9, one side of the laser emitter 9 is connected to a laser emitting head 10, and one side of the valve body 1 is fixedly connected to a laser receiving plate 11 that matches the laser emitting head 10.

[0026] A valve cavity 13 is provided in the middle of the valve body 1, and a gasket is fixedly connected to the inner wall of the valve cavity 13, and a movable valve plate 14 is movably connected to the gasket. A toothed edge meshing with the rack is provided on the outer side of the movable valve plate 14, and a static valve plate 15 is fixedly connected to the gasket and located below the movable valve plate 14.

[0027] An upper connecting valve seat 17 is fixedly connected to the upper side of the valve body 1 via an upper connecting flange 16 . A liquid inlet channel is provided in the middle of the upper connecting valve seat 17 . The liquid inlet channel extends into the valve body 1 and communicates with the valve cavity 13 .

[0028] A lower connecting valve seat 19 is fixedly connected to the bottom of the valve body 1 via a lower connecting flange 18 . A liquid outlet channel is provided in the middle of the lower connecting valve seat 19 . The liquid outlet channel extends into the valve body 1 and communicates with the valve cavity 13 .

[0029] A range scale 12 is fixedly connected to the outer wall of the valve body 1 .

[0030] In this embodiment, when liquid flows from the liquid inlet channel connected to the upper valve seat 17 through the valve cavity 13 and then flows out through the liquid outlet channel connected to the lower valve seat 19, when the flow rate of the liquid needs to be controlled, the electric push rod 5 is started, and the electric push rod 5 drives the driving rod 6 to move when it is running. When the driving rod 6 moves, the rack on its side moves. When the driving rod 6 drives the rack to move, the toothed edge on the side of the movable valve plate 14 meshes with the rack, so that when the toothed edge rotates, the movable valve plate 14 is driven to rotate. When the movable valve plate 14 rotates above the static valve plate 15, the gap between the movable valve plate 14 and the static valve plate 15 can be adjusted;

[0031] Specifically, the laser emitter 9 is started at the same time. When the laser emitter 9 is started, X-rays are emitted and emitted through the laser emission head 10. Then, the X-rays are emitted above the range scale 12 and received by the laser receiving plate 11 on the other side. At this time, the length of the X-rays above the range scale 12 is measured to record the starting length A of the X-rays. When the driving rod 6 moves, the displacement sensor 8 and the laser emitter 9 at one end thereof are driven to move. The displacement sensor 8 monitors the distance moved by the driving rod 6. Then, when the driving rod 6 drives the laser emitter 9 to move, the X-rays are gradually shortened. Then, the length B of the shortened X-rays is measured again. The moving distance C of the driving rod 6 can be obtained through AB. When the driving rod 6 drives its rack to move linearly, when the rack is meshed with the tooth edge, there is a corresponding relationship between the linear movement distance of the rack and the rotation angle of the tooth edge: , so that the angle of rotation of the tooth edge can be estimated, and then the angle of rotation of the movable valve plate 14 can be determined, and the movable valve plate 14 can be accurately controlled. The flow rate of the liquid fluid can be accurately adjusted according to demand, avoiding excessive or insufficient flow, reducing energy waste, and making the valve body 1 respond faster, further improving the efficiency of the system and product quality.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A regulating valve for controlling liquid flow, comprising a valve body (1), characterized in that: The outer wall of the valve body (1) is provided with a valve groove (2); one side of the valve body (1) is fixedly connected to a support plate (3); one side of the support plate (3) is provided with a positioner (4); one side of the positioner (4) is connected to an electric push rod (5) via a connecting column; the side wall of the valve body (1) is fixedly connected to a connecting plate (7); the output end of the electric push rod (5) passes through the connecting plate (7) and extends into the valve groove (2) and is connected to a driving rod (6); the outer surface of the driving rod (6) is fixedly connected to a rack; A displacement sensor (8) is provided at one end of the driving rod (6) close to the connecting plate (7); a laser transmitter (9) is connected to one side of the displacement sensor (8); a laser transmitter head (10) is connected to one side of the laser transmitter (9); and a laser receiving plate (11) matching the laser transmitter head (10) is fixedly connected to one side of the valve body (1).

2. A regulating valve for controlling liquid flow according to claim 1, characterized in that: A valve cavity (13) is provided in the middle of the valve body (1), a gasket is fixedly connected to the inner wall of the valve cavity (13), a movable valve plate (14) is movably connected to the gasket, a toothed edge meshing with a rack is provided on the outer side of the movable valve plate (14), and a static valve plate (15) is fixedly connected to the gasket and located below the movable valve plate (14).

3. A regulating valve for controlling liquid flow according to claim 1, characterized in that: An upper connecting valve seat (17) is fixedly connected to the upper side of the valve body (1) via an upper connecting flange (16); a liquid inlet channel is provided in the middle of the upper connecting valve seat (17); the liquid inlet channel extends into the valve body (1) and is in communication with the valve cavity (13).

4. A regulating valve for controlling liquid flow according to claim 1, characterized in that: A lower connecting valve seat (19) is fixedly connected to the bottom of the valve body (1) via a lower connecting flange (18); a liquid outlet channel is provided in the middle of the lower connecting valve seat (19); the liquid outlet channel extends into the valve body (1) and is in communication with the valve cavity (13).

5. The regulating valve for controlling liquid flow according to claim 1, characterized in that: A measuring scale (12) is fixedly connected to the outer wall of the valve body (1).

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