High-pressure regulating valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a high-pressure regulating valve. Comprising a valve body, a valve assembly and a driving assembly, the valve body is internally provided with an upper cavity and a lower cavity, a partition plate is arranged between the upper cavity and the lower cavity, the valve body is provided with an inlet and an outlet, the inlet is communicated with the lower cavity, the outlet is communicated with the lower cavity, the valve assembly comprises a valve cylinder, and the valve cylinder is arranged in the valve body. The valve cylinder can be driven by the driving assembly to rotate, and the upper cavity and the lower cavity are communicated or separated. According to the valve, communication or separation of the upper cavity and the lower cavity is controlled by rotating the valve cylinder, a valve clack moving up and down is not needed, the flowing direction of fluid is different from the moving direction of the valve cylinder, the valve can be stably opened and closed, and the phenomenon that a traditional valve is unstable in operation is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a high-pressure regulating valve. Background Art

[0002] The regulating valve, also known as the control valve, is the final control element in the field of industrial automation process control. It receives the control signal output by the regulating control unit and uses power operation to change the process parameters such as medium flow, pressure, temperature, and liquid level.

[0003] The traditional regulating valve is just a simple structure of a valve disc and a valve stem. The valve stem is connected to the valve disc and provides opening and closing force for the operation of the valve disc. However, due to the effect of the medium force, the closing force of the valve disc pushing down is larger, and the opening force of the valve disc pushing up is smaller, which leads to unstable operation. Utility Model Content

[0004] The utility model aims to provide a high-pressure regulating valve to solve the problem in the prior art that the valve is easily affected by the force of the medium, resulting in damage to the sealing surface.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A high-pressure regulating valve comprises a valve body, a valve assembly and a drive assembly, wherein an upper cavity and a lower cavity are arranged in the valve body, a partition is arranged between the upper cavity and the lower cavity, an inlet and an outlet are arranged on the valve body, the inlet is connected to the lower cavity, and the outlet is connected to the lower cavity, the valve assembly comprises a valve cylinder, and the valve cylinder can rotate under the drive of the drive assembly to connect or separate the upper cavity and the lower cavity.

[0007] In the present application, the upper cavity and the lower cavity are connected or separated by rotating the valve cylinder. There is no need for a valve flap to move up and down. The flow direction of the fluid is different from the movement direction of the valve cylinder. The valve can be opened and closed stably, which optimizes the unstable operation of traditional valves.

[0008] Furthermore, the valve assembly also includes a valve sleeve, one end of which is connected to the top of the upper cavity, the free end of the valve sleeve passes through the partition and is connected to the lower cavity, the valve sleeve is provided with a connecting hole connecting the upper cavity and the valve sleeve, the valve cylinder is rotatably connected to the valve sleeve, the end of the valve cylinder away from the lower cavity is covered, and a discharge hole is provided through the side wall of the valve cylinder corresponding to the connecting hole.

[0009] In the present application, the valve is opened by rotating the valve cylinder until the connecting hole is connected to the discharge port. The direction of fluid movement is not colinear with the direction of valve cylinder rotation, and the starting force required for the opening and closing process is the same, which can maintain stable operation of the valve.

[0010] Furthermore, a limiting ring is connected to the bottom of the valve cylinder, a mounting groove is reserved in the valve sleeve corresponding to the limiting ring, the limiting ring is arranged in the mounting groove, and a clamping ring is arranged at the bottom end of the valve sleeve, and the clamping ring is used to limit the downward movement of the valve cylinder.

[0011] In the present application, a limit ring and a clamping ring are provided to prevent the valve cylinder from sliding up and down relative to the valve cylinder, thereby ensuring stable opening and closing of the valve cylinder.

[0012] Furthermore, the driving assembly includes a driving wheel, which is arranged outside the valve body. A driving rod is arranged on the top end of the valve cylinder, and a free end of the driving rod passes through the valve body and is connected to the driving wheel.

[0013] In the present application, a driving wheel is provided to facilitate the control of the rotation of the valve cylinder, and the control method is simple and quick.

[0014] Furthermore, a ball is provided at one end of the limiting ring away from the lower cavity, and at least a part of the ball is embedded in the limiting ring.

[0015] In the present application, a ball bearing is arranged on the limit ring, which can reduce the friction between the limit ring and the valve sleeve, and can ensure that the valve cylinder can rotate in the valve sleeve under the pressure of the high-pressure fluid.

[0016] Furthermore, there are multiple discharge holes arranged in a grid-like manner on the circumference of the valve cylinder. The circumference of the valve cylinder is provided with an external thread. The valve sleeve is provided with a slide groove corresponding to the connecting hole. A slider is slidably provided in the slide groove. The slider can slide to close or open the connecting hole. The slider is provided with an internal thread matching the external thread.

[0017] In the present application, the valve cylinder is set to a mesh shape, which can buffer the high-pressure fluid. Then, a slider that can be driven to slide up and down when the valve cylinder rotates is used to control the opening and closing of the connecting hole. The movement direction of the slider is not colinear with the movement direction of the fluid. The slider can operate stably, which optimizes the unstable operation of traditional valves.

[0018] The utility model adopting the above technical solution has the following advantages:

[0019] 1. In the present application, the connection or separation of the upper cavity and the lower cavity is controlled by rotating the valve cylinder. There is no need for a valve flap to move up and down. The flow direction of the fluid is different from the movement direction of the valve cylinder. The valve can be opened and closed stably, which optimizes the unstable operation of traditional valves.

[0020] 2. In the present application, a ball bearing is arranged on the limit ring, which can reduce the friction between the limit ring and the valve sleeve, and can ensure that the valve cylinder can rotate in the valve sleeve under the pressure of the high-pressure fluid.

[0021] 3. In the present application, the valve cylinder is set to be mesh-shaped, which can buffer the high-pressure fluid. Then, a slider that can be driven to slide up and down when the valve cylinder rotates is used to control the opening and closing of the connecting hole. The movement direction of the slider is not colinear with the movement direction of the fluid. The slider can operate stably, which optimizes the unstable operation of traditional valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 This is one of the cross-sectional views of the structure of the high-pressure regulating valve of the utility model;

[0024] Figure 2 This is the second cross-sectional view of the structure of the high-pressure regulating valve of the utility model;

[0025] Figure 3 For this utility model Figure 2 A magnified schematic diagram of part A;

[0026] Figure 4 This is a structural schematic diagram of the valve cylinder in the high-pressure regulating valve of the utility model;

[0027] The main component symbols are described as follows:

[0028] 10. Valve body; 11. Inlet; 12. Outlet; 13. Partition;

[0029] 20. Valve assembly; 21. Valve sleeve; 22. Valve cylinder; 221. External thread; 23. Communication hole; 24. Discharge hole; 25. Limiting ring; 26. Mounting groove; 27. Snap ring; 28. Ball; 29. ​​Slide groove; 291. Slider;

[0030] 31. Driving rod; 32. Driving wheel. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or in the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0032] like Figures 1 to 4As shown, a high-pressure regulating valve of the utility model includes a valve body 10, a valve assembly 20 and a drive assembly. An upper cavity and a lower cavity are arranged in the valve body 10. A partition 13 is arranged between the upper cavity and the lower cavity. An inlet 11 and an outlet 12 are arranged on the valve body 10. The inlet 11 is connected to the lower cavity. The outlet 12 is connected to the upper cavity. The valve assembly 20 includes a valve cylinder 22. The valve cylinder 22 can be rotated under the drive of the drive assembly to connect and separate the upper cavity and the lower cavity. In the present application, the valve cylinder 22 is used as a component for controlling the opening and closing of the high-pressure valve. Compared with the traditional valve plate, it does not bear the pressure and erosion along the direction of fluid movement, and is not easy to be worn or damaged.

[0033] Preferably, the valve assembly 20 further comprises a valve sleeve 21. One end of the valve sleeve 21 is connected to the top of the upper cavity. The free end of the valve sleeve 21 passes through the partition 13 and communicates with the lower cavity. The peripheral side of the valve sleeve 21 located in the upper cavity is provided with a communicating hole 23 that penetrates into the valve sleeve 21. The valve cylinder 22 is rotatably connected to the valve sleeve 21. The end of the valve cylinder 22 away from the lower cavity is covered. A discharge hole 24 is provided on the peripheral side of the valve cylinder 22 corresponding to the communicating hole 23. When the valve cylinder 22 rotates until the discharge hole 24 is connected with the communicating hole 23, the lower cavity is connected with the upper cavity; otherwise, the lower cavity is isolated from the upper cavity. When connected, the movement direction of the fluid is first along the axial direction of the valve cylinder 22, and then along the radial direction of the valve cylinder 22. The fluid flow direction is not directly facing the top of the valve cylinder 22, and will not cause a large impact on the sealing surface of the valve cylinder 22, so the valve core can be protected.

[0034] A limit ring 25 is provided at the bottom of the valve cylinder 22. A mounting groove 26 is reserved at the valve sleeve 21 corresponding to the limit ring 25. When the valve cylinder 22 is in use, the limit ring 25 is arranged in the mounting groove 26. A clamping ring 27 is provided at the bottom end of the valve sleeve 21. The clamping ring 27 is used to limit the valve cylinder 22 from sliding down and falling off.

[0035] The driving assembly includes a driving wheel 32. The driving wheel 32 is arranged outside the valve body 10, and a driving rod 31 is arranged at the top of the valve cylinder 22. The free end of the driving rod 31 passes through the valve body 10 and is connected to the driving wheel 32. The valve cylinder 22 is driven to rotate by rotating the driving wheel. In the present application, sealing rings can be arranged at positions such as the circumference of the limit ring 25 and the circumference of the valve cylinder 22 to ensure the sealing of the device.

[0036] The end of the stop ring 25 away from the lower cavity is provided with a ball 28. In the present application, by providing the ball, the friction between the stop ring 25 and the valve sleeve 21 is reduced, and the rotation of the valve cylinder 22 is facilitated.

[0037] The discharge hole 24 can be set to a hole that matches the connecting hole 23. When the valve cylinder 22 rotates to the point where the discharge hole 24 corresponds to the connecting hole 23, the valve opens. In the present application, in order to reduce the impact of high pressure on the valve cylinder 22. The discharge holes 24 are set to be multiple and evenly distributed on the valve cylinder 22 in a mesh shape. An external thread 221 is provided on the outside of the valve cylinder 22. A slide groove 29 is provided at the valve sleeve 21 corresponding to the connecting hole 23. A slider 291 is slidably provided in the slide groove 29. The slider 291 can move up and down to close or open the connecting hole 23. An internal thread matching the external thread 221 is provided on the slider 291. When the valve cylinder 22 rotates, it can drive the slider 291 to slide to open and close the connecting hole 23. The mesh structure formed by the discharge holes 24 on the valve cylinder 22 can buffer the high-pressure fluid, and the control of the slider 291 on the opening and closing of the connecting hole 23 will not be affected during the rotation of the valve cylinder 22.

[0038] The above is a detailed introduction to a high-pressure regulating valve provided by the utility model. The description of the specific embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A high pressure regulating valve, It is characterized in that The invention comprises a valve body (10), a valve assembly (20) and a drive assembly, wherein a partition (13) is arranged inside the valve body (10), and the partition (13) divides the valve body (10) into an upper cavity and a lower cavity, and a partition (13) is arranged between the upper cavity and the lower cavity, and an inlet (11) and an outlet (12) are arranged on the valve body (10), the inlet (11) is connected to the lower cavity, and the outlet (12) is connected to the lower cavity, and the valve assembly (20) comprises a valve cylinder (22) and a slider (291), and the valve cylinder (22) can rotate under the drive of the drive assembly, driving the slider (291) to slide, thereby connecting or separating the upper cavity and the lower cavity.

2. The high pressure regulating valve according to claim 1, It is characterized in that The valve assembly (20) further comprises a valve sleeve (21), one end of the valve sleeve (21) being connected to the top of the upper cavity, the free end of the valve sleeve (21) passing through the partition (13) to communicate with the lower cavity, the valve sleeve (21) being provided with a connecting hole (23) connecting the upper cavity and the valve sleeve (21), the valve cylinder (22) being rotatably connected to the valve sleeve (21), the end of the valve cylinder (22) away from the lower cavity being provided with a cover, and a discharge hole (24) being provided through a side wall of the valve cylinder (22) corresponding to the connecting hole (23).

3. The high pressure regulating valve according to claim 2, It is characterized in that The lower end of the valve sleeve (21) is provided with a mounting groove (26), the valve cylinder (22) is provided with a limiting ring (25) in the mounting groove (26), and the bottom end of the valve sleeve (21) is provided with a clamping ring (27), the clamping ring (27) being used to limit the downward movement of the valve cylinder (22).

4. The high pressure regulating valve according to claim 1, It is characterized in that A driving rod (31) is provided on the valve cylinder (22), and the driving rod (31) passes through the valve body (10) and is mounted with a driving wheel (32).

5. The high pressure regulating valve according to claim 3, It is characterized in that A ball (28) is provided at one end of the limiting ring (25) away from the lower cavity.

6. The high pressure regulating valve according to claim 2, It is characterized in that There are a plurality of discharge holes (24) arranged in a net-like manner around the valve cylinder (22); an external thread (221) is provided around the valve cylinder (22); a slide groove (29) is provided on the valve sleeve (21) corresponding to the connecting hole (23); the slider (291) is slidably arranged in the slide groove (29); the slider (291) can slide to close or open the connecting hole (23); and an internal thread matching the external thread (221) is provided on the slider (291).

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