Adjustable throttle valve with eddy current suppression guide plate

Abstract

This utility model relates to the field of fluid control equipment technology, specifically to an adjustable throttle valve with vortex suppression guide plates. It includes a valve body, a flow guide assembly installed within the outlet channel, and a support plate fixedly installed below the flow guide assembly. The flow guide assembly is fixed to the top of the support plate. The flow guide assembly includes a central shaft at its center, which is conical. Several guide plates are arranged in a circular array outside the central shaft. This utility model, by setting a flow guide assembly containing a central shaft and guide plates within the outlet channel of the valve body, utilizes the conical design of the central shaft, the arc-shaped structure of the guide plates (wider at the bottom and narrower at the top), and turbulence-inducing protrusions to effectively guide the water flow direction, disrupt the turbulent state of the water flow, suppress vortex formation, and provide a stable flow path for the fluid, thereby improving fluid flow stability and the working efficiency of the throttle valve. The support plate supports the flow guide assembly, ensuring its stable installation within the valve body.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment technology, specifically to an adjustable throttle valve with a vortex suppression guide plate. Background Technology

[0002] In fluid transport and control systems, throttle valves are key components for flow regulation and pressure control, and are widely used in petrochemical, water supply and drainage, and energy industries. They regulate fluid flow by changing the flow area of ​​the throttling orifice; however, existing throttle valves have several problems in practical applications.

[0003] Existing technology, such as patent application number CN202120210671.6, discloses a throttle valve structure, including a throttle valve body, a throttle valve cover, a throttle valve stem, a throttle valve sealing gasket, and a throttle valve connector. The throttle valve body has a liquid outlet end, and the upper opening of the throttle valve body is connected to the throttle valve cover. The throttle valve stem is inserted into the throttle valve cover, which is used to fix the throttle valve stem and control the flow rate of the liquid through the throttle valve stem. The lower end of the throttle valve stem is fitted with a throttle valve sealing gasket, which is inserted into the throttle valve connector. The throttle valve connector is fixed at the lower opening of the throttle valve body, and the liquid inlet end is fixed on the throttle valve body to fix the throttle valve sealing gasket. This gives the valve body the advantages of simple structure and small size, making it suitable for household appliances. However, in actual use, when the fluid passes through the throttle valve, due to abrupt changes in the flow channel and flow velocity, eddy currents are easily generated inside the valve. Eddies not only increase fluid flow resistance, leading to increased energy loss and reduced system operating efficiency, but can also cause pipeline vibration and noise, affecting equipment stability and service life.

[0004] In view of this, we propose an adjustable throttle valve with an eddy current suppression guide plate. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an adjustable throttle valve with an eddy current suppression guide plate.

[0006] The technical solution of this utility model is:

[0007] An adjustable throttle valve with eddy current suppression guide plates includes a valve body. A guide plate is installed in the valve body within the water outlet channel, and a support plate is fixedly installed below the guide plate. The guide plate is fixed to the top of the support plate. The guide plate includes a central shaft located at the center. The central shaft is conical, and several guide plates are arranged in a circular array on the outer side of the central shaft. The outer walls of the guide plates are arc-shaped and wider at the bottom than at the top. Uniformly distributed turbulence protrusions are provided on the outer walls of both the guide plates and the central shaft. A fixing rod is fixed at the top and bottom of the inner wall of the guide plate, and the end of the fixing rod away from the guide plate is fixedly connected to the central shaft. By setting a flow guiding assembly containing a central shaft and a guide plate in the water outlet channel of the valve body, the flow guiding assembly can effectively guide the direction of water flow, disrupt the turbulent state of water flow, and suppress the formation of eddies by utilizing the conical design of the central shaft, the arc-shaped structure of the guide plate (wider at the bottom and narrower at the top), and the turbulence protrusions. At the same time, it can provide a stable flow guiding path for the fluid, improve the fluid flow stability and the working efficiency of the throttle valve. The support plate is used to support the flow guiding assembly and ensure that it is firmly installed in the valve body.

[0008] As a preferred technical solution, the support plate has two symmetrically integrally formed connecting rods on its outer circumference. These connecting rods are fixed to the inner wall of the water outlet channel. Each connecting rod has a triangular cross-section with one vertex pointing upwards. Several equally spaced guide grooves are provided on the outer walls of both sides of the top of the connecting rod. The symmetrically arranged triangular connecting rods and guide grooves on the outer circumference of the support plate further guide the water flow, disperse the impact force of the water flow, optimize the flow pattern of the fluid passing through the support plate, and reduce water flow resistance and the probability of eddy current generation.

[0009] As a preferred technical solution, the valve body is equipped with a valve core that can move up and down, with the bottom of the valve core facing the water outlet channel. The valve body also has a movable groove inside for the valve core to move up and down. The valve core, which can move up and down inside the valve body, can flexibly adjust the opening of the throttle valve by changing its relative position to the water outlet channel, thereby achieving precise control of the fluid flow rate.

[0010] As a preferred technical solution, a lead screw threadedly connected to the valve core is rotatably installed in the movable groove. The lead screw extends from the top of the valve body and is rotatably connected to the valve body via a bearing. The rotatable installation of the lead screw threadedly connected to the valve core in the movable groove converts the rotational motion of the lead screw into the linear motion of the valve core, facilitating precise and stable control of the valve core's up-and-down movement via the rotation of the lead screw, thereby adjusting the throttle valve opening.

[0011] As a preferred technical solution, an adjustment knob is integrally formed on one end of the top of the lead screw, and the outer circumference of the adjustment knob is provided with anti-slip texture. The adjustment knob and anti-slip texture on the top of the lead screw facilitate manual rotation by the operator to adjust the opening of the throttle valve, and the anti-slip texture increases the friction during operation, making the adjustment process more effortless and stable.

[0012] As a preferred technical solution, a first sealing block is fixedly installed at the bottom of the valve core. A second sealing block is integrally formed from the first sealing block. The outer ring wall of the first sealing block is tightly fitted to the inner wall of the water outlet channel. The second sealing block is inverted conical in shape. The first and second sealing blocks at the bottom of the valve core enhance the sealing performance between the valve core and the water outlet channel, preventing fluid leakage and ensuring the accuracy of the throttle valve's flow control. The inverted conical second sealing block better adapts to sealing requirements under different opening degrees.

[0013] As a preferred technical solution, a third sealing block is fixedly installed on the outer wall of the valve core at the water inlet channel within the valve body, and an installation groove is provided for the third sealing block to move up and down. A connecting cavity is provided inside the valve core to connect the water inlet channel and the water outlet channel, and a gap exists between the inner ring wall of the connecting cavity and the outer wall of the valve core. The third sealing block on the outer wall of the valve core ensures a good seal between the valve core and the water inlet channel of the valve body. The connecting cavity allows fluid to flow smoothly through it, preventing the throttle valve performance from being affected by poor sealing or obstructed flow.

[0014] As a preferred technical solution, both the inlet and outlet pipes of the valve body are integrally formed with an external connecting pipe, and a flange is welded onto the external connecting pipe. The inlet and outlet channels are located inside the inlet and outlet pipes, respectively. The external connecting pipes and flanges on the inlet and outlet pipes of the valve body facilitate the connection of the throttle valve to external pipelines, enabling quick and stable installation and improving the versatility and applicability of the throttle valve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model provides a flow guiding component, which includes a central shaft and a guide plate, in the water outlet channel of the valve body. By utilizing the conical design of the central shaft, the arc-shaped structure of the guide plate (wider at the bottom and narrower at the top), and the turbulence protrusions, it can effectively guide the direction of water flow, disrupt the turbulent state of water flow, suppress the formation of eddies, and at the same time provide a stable flow path for the fluid, thereby improving the fluid flow stability and the working efficiency of the throttle valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the valve body in this utility model;

[0019] Figure 3 This is a schematic diagram of the flow guiding component in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support plate and connecting rod in this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Valve body; 10. Inlet pipe; 100. Inlet channel; 11. Outlet pipe; 110. Outlet channel; 12. Movable groove; 13. Valve core; 130. First sealing block; 131. Second sealing block; 132. Third sealing block; 14. Connecting cavity; 15. Mounting groove; 16. Screw; 2. Adjusting knob; 3. External pipe; 4. Flange; 5. Flow guide assembly; 50. Flow guide plate; 51. Central shaft; 52. Fixed rod; 53. Turbulence protrusion; 6. Support plate; 60. Connecting rod; 61. Flow guide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to the accompanying drawings. This utility model provides a technical solution:

[0025] like Figures 1-3 As shown, the adjustable throttle valve with eddy current suppression guide plate 50 includes a valve body 1. The valve body 1 is located in the water outlet channel 110 and a guide assembly 5 is installed. A support plate 6 is fixedly installed below the guide assembly 5. The guide assembly 5 is fixed on the top of the support plate 6. The guide assembly 5 includes a central shaft 51 located at the center. The central shaft 51 is conical. Several guide plates 50 are provided on the outer side of the central shaft 51. The several guide plates 50 are arranged in a circular array. The outer wall of the guide plate 50 is arc-shaped and wider at the bottom and narrower at the top. The guide plate 50 and the outer wall of the central shaft 51 are provided with uniformly distributed turbulence protrusions 53. A fixing rod 52 is fixed at the top and bottom of the inner wall of the guide plate 50. The end of the fixing rod 52 away from the guide plate 50 is fixedly connected to the central shaft 51. By setting a flow guiding assembly 5, which includes a central shaft 51 and a guide plate 50, in the water outlet channel 110 of the valve body 1, the flow guiding assembly 5, which includes a conical design of the central shaft 51, an arc-shaped structure with a wider bottom and a narrower top, and turbulence protrusions 53, can effectively guide the direction of water flow, disrupt the turbulent state of water flow, suppress the formation of eddies, and provide a stable flow guiding path for the fluid, thereby improving the fluid flow stability and the working efficiency of the throttle valve. The support plate 6 is used to support the flow guiding assembly 5 to ensure that it is firmly installed in the valve body 1.

[0026] like Figure 4As shown in the preferred embodiment, the support plate 6 has two symmetrically integrally formed connecting rods 60 on its outer circumference. The connecting rods 60 are fixed to the inner wall of the water outlet channel 110. The connecting rods 60 have a triangular cross-section with one vertex pointing upwards. Several equally spaced guide grooves 61 are provided on the outer walls of the two sides of the top of the connecting rods 60. The symmetrically arranged triangular connecting rods 60 and guide grooves 61 on the outer circumference of the support plate 6 can further guide the water flow, disperse the water flow impact force, optimize the flow state of the fluid when flowing through the support plate 6, and reduce the water flow resistance and the probability of eddy current generation.

[0027] like Figure 2 As shown, in a preferred embodiment, the valve body 1 has a valve core 13 that can move up and down inside, with the bottom of the valve core 13 facing the water outlet channel 110. The valve body 1 has a movable groove 12 inside for the valve core 13 to move up and down. The valve core 13, which can move up and down inside the valve body 1, can flexibly adjust the opening of the throttle valve by changing its relative position with the water outlet channel 110, thereby achieving precise control of the fluid flow rate.

[0028] like Figure 2 As shown, in a preferred embodiment, a lead screw 16 threadedly connected to the valve core 13 is rotatably mounted in the movable groove 12. The lead screw 16 extends from the top of the valve body 1 and is rotatably connected to the valve body 1 via a bearing. The lead screw 16 threadedly connected to the valve core 13 and rotatably mounted in the movable groove 12 can convert the rotational motion of the lead screw 16 into the linear motion of the valve core 13, making it easy to accurately and stably control the up and down movement of the valve core 13 by rotating the lead screw 16, thereby adjusting the opening of the throttle valve.

[0029] like Figure 2 As shown, in a preferred embodiment, an adjustment knob 2 is integrally formed on one end of the top of the lead screw 16, and the outer circumference of the adjustment knob 2 is provided with anti-slip texture. The adjustment knob 2 and the anti-slip texture on the top of the lead screw 16 make it convenient for the operator to manually rotate the lead screw 16 to adjust the opening of the throttle valve. The anti-slip texture can increase the friction during operation, making the adjustment process more effortless and stable.

[0030] like Figure 2 As shown, in a preferred embodiment, a first sealing block 130 is fixedly installed at the bottom of the valve core 13. A second sealing block 131 is integrally formed from the first sealing block 130. The outer ring wall of the first sealing block 130 is tightly fitted to the inner wall of the water outlet channel 110, and the second sealing block 131 is inverted conical in shape. The first sealing block 130 and the second sealing block 131 at the bottom of the valve core 13 enhance the sealing performance between the valve core 13 and the water outlet channel 110, preventing fluid leakage and ensuring the accuracy of the flow control of the throttle valve. The inverted conical second sealing block 131 can better adapt to the sealing requirements under different opening degrees.

[0031] like Figure 2As shown, in a preferred embodiment, a third sealing block 132 is fixedly installed on the outer wall of the valve core 13 at the water inlet channel 100 inside the valve body 1, and an installation groove 15 is provided for the third sealing block 132 to move up and down. A connecting cavity 14 is provided inside the valve core 13 to connect the water inlet channel 100 and the water outlet channel 110. There is a gap between the inner ring wall of the connecting cavity 14 and the outer wall of the valve core 13. The third sealing block 132 on the outer wall of the valve core 13 ensures the sealing effect between the valve core 13 and the water inlet channel 100 of the valve body 1. The setting of the connecting cavity 14 allows the fluid to flow smoothly through the connecting cavity 14, avoiding the impact on the performance of the throttle valve due to poor sealing or obstruction of the channel.

[0032] like Figure 2 As shown in the preferred embodiment, both the inlet pipe 10 and the outlet pipe 11 of the valve body 1 are integrally formed with an external connecting pipe 3, and a flange 4 is welded onto the external connecting pipe 3. The inlet channel 100 and the outlet channel 110 are located inside the inlet pipe 10 and the outlet pipe 11, respectively. The external connecting pipe 3 and the flange 4 on the inlet pipe 10 and the outlet pipe 11 of the valve body 1 facilitate the connection of the throttle valve with external pipelines, enabling quick and stable installation and improving the versatility and applicability of the throttle valve.

[0033] When using the adjustable throttle valve with eddy current suppression guide plate 50 of this utility model:

[0034] Fluid introduction stage: Fluid flows in from the inlet pipe 10 of valve body 1, enters the inlet channel 100 through the pipe connected to the outer pipe 3 and flange 4, and after the valve core 13 is opened, the fluid enters the outlet channel 110 through the connecting cavity 14.

[0035] The flow guiding component 5 suppresses eddies: After the fluid enters the water outlet channel 110, it first contacts the flow guiding component 5: the central axis 51 is conical, which guides the fluid to flow in a concentrated manner along the axial direction. The conical structure can gradually shrink the flow channel, so that the flow velocity increases uniformly. The flow guide plate 50 is distributed in a circular array. Its outer wall has an arc-shaped structure that is wider at the bottom and narrower at the top (similar to a diffusion-contraction flow channel), which can guide the fluid to flow smoothly along the curved surface of the flow guide plate 50. The bottom is wider at the bottom, which expands the fluid contact area, and the top is narrower at the top, which concentrates the flow direction. Together with the turbulence protrusion 53, it disrupts the fluid boundary layer and destroys the conditions for eddy formation. The support plate 6 is fixed to the bottom of the valve body 1 by a triangular connecting rod 60. The flow guide groove 61 on the connecting rod 60 further guides the fluid, disperses the impact force, and reduces turbulence and eddies near the support plate 6.

[0036] Flow regulation stage: The operator drives the lead screw 16 to rotate by rotating the adjustment knob 2. The threaded connection between the lead screw 16 and the valve core 13 converts the rotational motion into the up-and-down linear motion of the valve core 13. When the valve core 13 moves upward, the gap between the first sealing block 130 and the inverted conical second sealing block 131 at the bottom of the valve core 13 and the water outlet channel 110 increases, the throttling opening widens, and the fluid flow increases. When the valve core 13 moves downward, the sealing blocks fit tightly against the inner wall of the water outlet channel 110, the throttling opening narrows, and the fluid flow decreases.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable throttling valve with vortex suppression vanes (50) characterized by: The device includes a valve body (1), which is located in the water outlet channel (110) and has a flow guide assembly (5) installed thereon. A support plate (6) is fixedly installed below the flow guide assembly (5). The flow guide assembly (5) is fixed on the top of the support plate (6). The flow guide assembly (5) includes a central shaft (51) located at the center. The central shaft (51) is conical. Several flow guide plates (50) are provided on the outer side of the central shaft (51). The several flow guide plates (50) are arranged in a circular array. The outer wall of the flow guide plate (50) is arc-shaped and wider at the bottom and narrower at the top. The outer walls of the flow guide plate (50) and the central shaft (51) are provided with uniformly distributed turbulence protrusions (53). A fixing rod (52) is fixed at the top and bottom of the inner wall of the flow guide plate (50). The end of the fixing rod (52) away from the flow guide plate (50) is fixedly connected to the central shaft (51).

2. The adjustable throttling valve with eddy current suppression vanes (50) of claim 1, wherein: The support plate (6) has two connecting rods (60) integrally formed symmetrically on its outer circumference. The connecting rods (60) are fixed to the inner wall of the water outlet channel (110). The connecting rods (60) have a triangular cross section with one vertex facing upward. The connecting rods (60) have several equally spaced guide grooves (61) on the outer walls on both sides at the top.

3. The adjustable throttling valve with eddy current suppression vanes (50) of claim 2, wherein: The valve body (1) is provided with a valve core (13) that can move up and down inside. The bottom of the valve core (13) is directly opposite the water outlet channel (110). The valve body (1) is provided with a movable groove (12) for the valve core (13) to move up and down inside.

4. The adjustable throttle valve with eddy current suppression guide plate (50) as described in claim 3, characterized in that: A lead screw (16) that is threadedly connected to the valve core (13) is rotatably installed in the movable groove (12). The lead screw (16) extends from the top of the valve body (1) and is rotatably connected to the valve body (1) through a bearing.

5. The adjustable throttling valve with eddy current suppression vanes (50) of claim 4, wherein: The top end of the lead screw (16) is integrally formed with an adjustment knob (2) on the same axis, and the outer circumference of the adjustment knob (2) is provided with anti-slip texture.

6. The adjustable throttling valve with vortex suppression vanes (50) in accordance with claim 5, characterized in that: A first sealing block (130) is fixedly installed at the bottom of the valve core (13). The first sealing block (130) is integrally formed with a second sealing block (131). The outer ring wall of the first sealing block (130) is tightly fitted with the inner wall of the water outlet channel (110). The second sealing block (131) is inverted conical.

7. The adjustable throttling valve with eddy current suppression vanes (50) of claim 6, wherein: The outer wall of the valve core (13) is fixedly installed with a third sealing block (132) at the water inlet channel (100) inside the valve body (1), and an installation groove (15) is provided for the third sealing block (132) to move up and down. The valve core (13) is provided with a connecting cavity (14) for connecting the water inlet channel (100) and the water outlet channel (110). There is a gap between the inner ring wall of the connecting cavity (14) and the outer wall of the valve core (13).

8. The adjustable throttling valve with vortex suppression vanes (50) in accordance with claim 7, characterized in that: The valve body (1) has an integrally formed outer pipe (3) on both the inlet pipe (10) and the outlet pipe (11). A flange (4) is welded on the outer pipe (3). The inlet channel (100) and the outlet channel (110) are located in the inlet pipe (10) and the outlet pipe (11), respectively.

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