A butterfly valve with dynamic vortex optimization

Abstract

The application relates to the technical field of butterfly valves, and discloses a butterfly valve with optimized dynamic vortex, which comprises a valve body, a flow-through center for fluid is arranged in the valve body, a rotating shaft is rotationally connected in the valve body, a butterfly plate for controlling fluid flow is arranged on the rotating shaft, an operating mechanism for driving the rotating shaft to rotate is arranged on the valve body, a plurality of flow guide grooves are arranged on the butterfly plate, and the extension directions of the plurality of flow guide grooves are parallel to the flow direction of the fluid. The application enables the fluid to flow along the extension direction of the flow guide grooves, delays the flow separation of the fluid on the surface of the butterfly plate, breaks the single and large-scale vortex into a plurality of small-scale and low-energy micro-vortices, suppresses the size and intensity of the dynamic vortex, reduces the consumption of the fluid kinetic energy caused by the violent rotation of the vortex, further reduces the pressure loss at both ends of the butterfly valve, and improves the flow-through efficiency of the fluid.

Description

Technical Field

[0001] This application relates to the technical field of butterfly valves, and in particular to a butterfly valve with dynamic vortex optimization. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve mainly used for fluid shut-off and throttling. It is driven by an operating mechanism to rotate a disc-shaped butterfly plate located in the center of the valve body channel around an axis, thereby controlling the flow of various fluids such as water, mud, and oil. By adjusting the rotation angle of the butterfly plate, precise flow control can also be achieved.

[0003] In related technologies, a butterfly valve includes a valve body, a flow center for fluid to pass through, a rotating shaft rotatably connected to the valve body, a butterfly plate for controlling fluid flow on the rotating shaft, and an operating mechanism for driving the rotating shaft to rotate on the valve body.

[0004] When fluid flows through a partially opened butterfly valve, a Karman vortex street is generated on its downstream side. This means that fluid alternately and periodically falls off from both sides of the butterfly valve, forming a series of vortices rotating in opposite directions. This dynamic vortex consumes the kinetic energy of the fluid, resulting in pressure loss at both ends of the butterfly valve. Utility Model Content

[0005] To address the issue of fluid kinetic energy loss caused by dynamic eddies, this application provides a butterfly valve optimized for dynamic eddies.

[0006] This application provides a dynamically optimized eddy current butterfly valve, which adopts the following technical solution: A dynamically vortex-optimized butterfly valve includes a valve body with a flow center for fluid passage. A rotating shaft is rotatably connected to the valve body, and a butterfly plate for controlling fluid flow is mounted on the rotating shaft. An operating mechanism for driving the rotating shaft to rotate is provided on the valve body. Multiple flow channels are provided on the butterfly plate, and the extension direction of the multiple flow channels is parallel to the flow direction of the fluid.

[0007] By adopting the above technical solution, multiple flow channels are provided on the butterfly plate, and the extension direction of the multiple flow channels is parallel to the flow direction of the fluid. This allows the fluid to flow along the extension direction of the flow channels, delaying the flow separation of the fluid on the surface of the butterfly plate. It also breaks up any single and large-scale vortex that may be formed into multiple small-scale and low-energy micro-vortices, thereby suppressing the scale and intensity of the dynamic vortex. This reduces the loss of fluid kinetic energy caused by the violent rotation of the vortex, further reduces the pressure loss at both ends of the butterfly valve, and improves the flow efficiency of the fluid.

[0008] Optionally, the flow channel is provided with a plurality of flow guide vanes, which are distributed along the extension direction of the flow channel. The flow guide vanes are inclined and the distance from the flow guide vanes to the bottom wall of the flow channel gradually increases along the direction of fluid flow.

[0009] By adopting the above technical solution, the distance from the guide vane to the bottom wall of the diversion channel gradually increases along the direction of fluid flow, allowing the fluid to flow more smoothly along the tilt direction of the guide vane, thereby generating an orderly and stable flow field. This enables the fluid to compress the low-pressure wake region downstream of the butterfly plate, thus limiting the generation environment of large-scale eddies and optimizing the dynamic eddies.

[0010] Optionally, the guide plate is provided with a flow-guiding part, and the flow-guiding part is provided with a first inclined surface. The distance from the first inclined surface to the guide plate gradually decreases along the direction of the flow-guiding part near the bottom wall of the flow-guiding groove. The first inclined surface is used to guide the direction of fluid flow out from between adjacent guide plates.

[0011] By adopting the above technical solution, the distance from the first inclined surface to the guide plate gradually decreases along the direction of the flow-inducing part near the bottom wall of the flow-inducing channel. This allows the first inclined surface to guide the fluid flowing out from between adjacent guide plates to flow towards the side closer to the flow-inducing channel, reducing the interference of the fluid flowing out from between adjacent guide plates on the fluid in other paths. This helps to optimize the flow path of the fluid, thereby reducing the eddy phenomenon caused by the fluid colliding with each other or abrupt changes in direction, and improving the flow efficiency and system stability.

[0012] Optionally, multiple guide channels are formed on the bottom wall of the flow channel, and the multiple guide channels are respectively located between different adjacent guide plates. A guide arc surface is formed on the guide channel, and the guide arc surface is bent towards the direction of the guide plate.

[0013] By adopting the above technical solution, multiple guide channels are located between different adjacent guide vanes, and each guide channel has a guide arc surface that bends towards the guide vane. This creates a gradually narrowing arc channel between the guide vanes. After the fluid enters between adjacent guide vanes, it can change its flow direction more smoothly and flow out faster along the direction of the bend of the guide arc surface. This reduces the stagnation and swirling of the fluid in the guide channel, thereby effectively suppressing the generation of eddies.

[0014] Optionally, the valve body is provided with a plurality of guide strips, which are distributed circumferentially along the valve body and extend along the axial direction of the valve body.

[0015] By adopting the above technical solution, the guide strip extends along the axis of the valve body, enabling the guide strip to divert the fluid. The guide strip disrupts the smoothness of the inner wall of the valve body, generating a series of stable small eddies around the guide fluid. The small eddies can delay the separation of the large eddies from the butterfly plate, thereby effectively suppressing the generation of large circumferential eddies that would cause vibration and energy consumption.

[0016] Optionally, the guide strip is provided with a guide slope, and the distance from the guide slope to the valve body axis gradually decreases along the direction of fluid flow. The guide slope is used to guide the fluid toward the direction close to the flow center axis.

[0017] By adopting the above technical solution, the distance from the guide slope to the valve body axis gradually decreases along the direction of fluid flow, allowing the fluid to move closer to the flow center axis along the inclined direction of the guide slope. This guides the fluid from the periphery to the center, thereby suppressing the lateral diffusion of the fluid and generating an orderly and stable flow field. This allows the fluid to compress the low-pressure wake region downstream of the butterfly plate, thus limiting the generation environment of large-scale eddies and optimizing the dynamic eddies.

[0018] Optionally, the valve body has a groove, the opening of which is bent toward the surface near the guide bar and the butterfly plate, and the groove is used to guide the fluid to flow toward the guide bar.

[0019] By adopting the above technical solution, the opening of the groove is bent towards the surface of the guide strip and the butterfly plate, so that the fluid can flow in the direction of the guide strip in accordance with the curved contour of the groove. After passing through the butterfly plate, the fluid can flow along the curved direction of the groove, which reduces the random lateral movement of the fluid and disordered energy dissipation, avoids the dynamic eddies induced by the violent exchange of fluid particles and sudden energy release, reduces the generation of dynamic eddies and improves the stability of the flow field.

[0020] Optionally, the flow channel is provided with a guiding arc surface, which is bent towards the direction of the guide plate, and the guiding arc surface is used to guide the fluid through the flow channel.

[0021] By adopting the above technical solution, the guide arc surface bends towards the direction of the guide plate, allowing the fluid to enter the flow channel more smoothly along the bending direction of the guide arc surface. This makes the flow direction of the fluid more orderly, thereby reducing energy loss and turbulence caused by sudden changes in flow direction or mutual impact between fluids, and further suppressing the formation of dynamic eddies.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Multiple flow channels are provided on the butterfly plate, and the extension direction of these channels is parallel to the flow direction of the fluid. This allows the fluid to flow along the extension direction of the channels, delaying the flow separation of the fluid on the butterfly plate surface and breaking up any single, large-scale vortex that may form into multiple small-scale, low-energy micro-vortices. This suppresses the scale and intensity of dynamic vortices, thereby reducing the loss of fluid kinetic energy caused by the violent rotation of vortices, further reducing pressure loss at both ends of the butterfly valve, and improving fluid flow efficiency.

[0023] 2. The distance from the guide vane to the bottom wall of the flow channel gradually increases along the direction of fluid flow, allowing the fluid to flow more smoothly along the inclined direction of the guide vane, thereby generating an orderly and stable flow field. This enables the fluid to compress the low-pressure wake region downstream of the butterfly plate, thus limiting the generation environment of large-scale eddies and optimizing the dynamic eddies. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a partial structural diagram highlighting the butterfly plate in an embodiment of this application; Figure 3 This is an embodiment of the present application. Figure 1 A partial sectional view along line AA; Figure 4 This is a partial structural diagram highlighting the guide strip in an embodiment of this application.

[0025] Reference numerals: 1. Valve body; 11. Flow center; 12. Rotating shaft; 13. Operating mechanism; 14. Guide bar; 141. Guide slope; 15. Groove; 2. Butterfly plate; 21. Drain groove; 211. Guide plate; 212. Drain part; 213. First slope; 214. Guide arc surface; 22. Guide groove; 221. Guide arc surface. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0027] This embodiment discloses a butterfly valve with dynamic eddy current optimization. (Refer to...) Figure 1 A dynamically optimized vortex butterfly valve includes a valve body 1 with a flow center 11 for fluid passage. A rotating shaft 12 is rotatably connected within the valve body 1, and an operating mechanism 13 for driving the rotating shaft 12 is rotatably connected to the valve body 1. A disc-shaped butterfly plate 2 for controlling fluid flow is fixedly connected to the outer surface of the rotating shaft 12. When the butterfly plate 2 is perpendicular to the flow center 11, i.e., when the butterfly plate 2 blocks the flow center 11, the butterfly valve is in the closed state. When the butterfly plate 2 is opened at a certain angle, fluid can pass through the flow center 11, and the butterfly valve is in the open state.

[0028] Reference Figure 2 Multiple drainage grooves 21 are provided on both opposite surfaces of the butterfly plate 2, and the drainage grooves 21 are arranged in an array along the length direction of the rotating shaft 12. The extension direction of the drainage grooves 21 is perpendicular to the length direction of the rotating shaft 12, and the drainage grooves 21 extend through both sides along the length direction.

[0029] Reference Figure 2 Multiple guide vanes 211 are fixedly connected inside the flow channel 21. The multiple guide vanes 211 are arranged in an array along the extension direction of the flow channel 21, and the distance between two adjacent guide vanes 211 is equal. The guide vanes 211 are inclined, and the distance from the guide vane 211 to the bottom wall of the flow channel 21 gradually increases along the direction in which the fluid passes through the flow channel 21, so that the fluid can pass through the flow channel 21 more smoothly along the inclined direction of the guide vane 211.

[0030] Reference Figure 3 A flow guide portion 212 is integrally formed on the surface of the guide vane 211 near the bottom wall of the flow channel 21. The flow guide portion 212 is located on the side of the guide vane 211 away from the bottom wall of the flow channel 21. A first inclined surface 213 is formed on the surface of the flow guide portion 212 away from the guide vane 211. The distance from the first inclined surface 213 to the guide vane 211 gradually decreases along the direction of the flow guide portion 212 near the bottom wall of the flow channel 21. Fluid can flow out from between adjacent guide vanes 211 along the inclined direction of the first inclined surface 213 to reduce collisions with fluids on other paths, thereby suppressing the generation of eddies.

[0031] Reference Figure 3 Multiple guide channels 22 are formed on the bottom wall of the flow channel 21. The multiple guide channels 22 are arranged in an array along the extension direction of the flow channel 21, and each guide channel 22 corresponds to the space between different adjacent guide vanes 211. A guide arc surface 221 is formed on the bottom wall of the guide channel 22. The guide arc surface 221 bends toward the guide vane 211 so that the fluid can leave between adjacent guide vanes 211 along the bending direction of the guide arc surface 221.

[0032] Reference Figure 3 The guide arc surface 214 is provided on both ends of the guide channel 21 along the length direction. The guide arc surface 214 bends toward the guide plate 211. The guide arc surface 214 is used to guide the fluid into the guide channel 21 along the bending direction of the guide arc surface 214.

[0033] Reference Figure 1 and Figure 4Multiple guide strips 14 are fixedly connected to the inner surface of the valve body 1. The multiple guide strips 14 are distributed circumferentially along the valve body 1, and the guide vane 211 extends along the axial direction of the valve body 1. A guide slope 141 is formed on the surface of the guide strip 14 near the butterfly plate 2. The distance from the guide slope 141 to the axis of the valve body 1 gradually decreases along the direction of fluid flow. The fluid can be accelerated along the inclined direction of the guide slope 141 and move towards the axis of the valve body 1.

[0034] Reference Figure 1 and Figure 4 The valve body 1 has multiple grooves 15 on its inner surface, which are distributed circumferentially along the valve body 1. The openings of the grooves 15 are curved toward the surface of the guide bar 14 and the butterfly plate 2, so that the fluid can flow toward the guide bar 14 along the curvature direction of the grooves 15 after passing through the butterfly plate 2.

[0035] The implementation principle of a butterfly valve with dynamic vortex optimization in this application embodiment is as follows: When the butterfly plate 2 is rotated open at a certain angle, the fluid enters the diversion groove 21 along the guide arc surface 214, flows to the other side of the valve body 1 through multiple guide vanes 211, and after the fluid enters between adjacent guide vanes 211, it can flow outward through the guide arc surface 221. After the diversion part 212 guides the fluid, the collision between the fluid and the fluid in other paths is reduced, and the generation of dynamic vortices is reduced.

[0036] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A dynamically vortex-optimized butterfly valve, comprising a valve body (1), wherein a flow center (11) for fluid passage is provided within the valve body (1), a rotating shaft (12) is rotatably connected within the valve body (1), a butterfly plate (2) for controlling fluid flow is provided on the rotating shaft (12), and an operating mechanism (13) for driving the rotating shaft (12) to rotate is provided on the valve body (1), characterized in that: The butterfly plate (2) is provided with a plurality of flow channels (21), and the extension direction of the plurality of flow channels (21) is parallel to the flow direction of the fluid.

2. The butterfly valve with dynamic eddy current optimization according to claim 1, characterized in that: The flow channel (21) is provided with a plurality of flow guides (211), which are distributed along the extension direction of the flow channel (21). The flow guides (211) are inclined and the distance from the flow guides (211) to the bottom wall of the flow channel (21) gradually increases along the direction of fluid flow.

3. The butterfly valve with dynamic eddy current optimization according to claim 2, characterized in that: The guide plate (211) is provided with a flow-guiding part (212), and the flow-guiding part (212) is provided with a first inclined surface (213). The distance from the first inclined surface (213) to the guide plate (211) gradually decreases along the direction of the flow-guiding part (212) near the bottom wall of the flow-guiding groove (21). The first inclined surface (213) is used to guide the direction of fluid flow from between adjacent guide plates (211).

4. The butterfly valve with dynamic eddy current optimization according to claim 1, characterized in that: The bottom wall of the flow channel (21) is provided with a plurality of flow channels (22), and the plurality of flow channels (22) are located between different adjacent flow guide plates (211). The flow channel (22) is provided with a guide arc surface (221), and the guide arc surface (221) bends toward the flow guide plate (211).

5. The butterfly valve with dynamic eddy current optimization according to claim 1, characterized in that: The valve body (1) is provided with a plurality of guide strips (14), which are distributed circumferentially along the valve body (1) and extend along the axial direction of the valve body (1).

6. The butterfly valve with dynamic eddy current optimization according to claim 5, characterized in that: The guide bar (14) has a guide slope (141) and the distance from the guide slope (141) to the axis of the valve body (1) gradually decreases along the direction of fluid flow. The guide slope (141) is used to guide the fluid toward the axis of the flow center (11).

7. A butterfly valve with dynamic eddy current optimization according to claim 1, characterized in that: The valve body (1) has a groove (15) with the opening of the groove (15) bent toward the surface of the guide bar (14) and the butterfly plate (2). The groove (15) is used to guide the fluid to flow toward the guide bar (14).

8. A butterfly valve with dynamic eddy current optimization according to claim 1, characterized in that: The flow channel (21) is provided with a guide arc surface (214), which is bent toward the direction of the guide plate (211) and is used to guide the fluid through the flow channel (21).

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