Ball valve flow resistance adjusting device with triangular spiral flow guide groove

Abstract

The utility model discloses a ball valve flow resistance adjusting device with triangular spiral flow guide grooves. The ball valve flow resistance adjusting device comprises a plurality of groups of throttling discs 1 arranged in a fluid channel 501 in parallel, throttling holes 2 and the flow guide grooves 3 which are formed in the adjacent throttling discs 1 respectively, and limiting plates 4 for axially limiting and fixing the throttling discs 1. A liquid spiral cavity is formed between the adjacent throttling holes 2 and diversion trenches 3, a fluid medium flows along a spiral path when passing through the flow resistance adjusting device, the speed and direction of the fluid are gradually changed, the pressure drop is gradually reduced, multi-stage throttling noise reduction is achieved, different flow resistance values can be achieved through different combinations of the flow resistance adjusting device, and the flow resistance adjusting device can be used for adjusting the flow resistance. And the flow resistance is adjustable on the premise of the same specification and model.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of fluid control valve technology, and more specifically, relate to a ball valve flow resistance adjustment device with a triangular spiral guide groove. Background Technology

[0002] In fluid control systems, ball valves are widely used due to their advantages such as simple structure, convenient operation, and good sealing performance.

[0003] However, under specific operating conditions, such as high pressure, high flow rate, or fluid environments containing particulate impurities, traditional ball valves may face challenges in flow regulation, such as inaccurate flow regulation, large fluctuations in fluid resistance, accelerated wear of valve body and sealing surface, and easy occurrence of noise and vibration during operation, resulting in poor operational reliability.

[0004] Therefore, it is particularly important to develop an internal flow resistance regulating device for ball valves that can effectively adjust fluid resistance and improve flow control accuracy. Summary of the Invention

[0005] To address the problems of existing ball valves failing to effectively adjust fluid resistance and improve flow control accuracy, this invention provides a ball valve flow resistance adjustment device with a triangular spiral guide groove to solve these problems.

[0006] To achieve the above objectives, this utility model provides a ball valve flow resistance adjustment device with a triangular spiral guide groove, comprising multiple sets of throttling discs arranged parallel in the fluid channel, throttling holes and guide grooves respectively provided on adjacent throttling discs, and a limiting plate for axially limiting and fixing the throttling discs; a liquid spiral cavity is formed between adjacent throttling holes and guide grooves, and the fluid medium flows along the spiral path when passing through the flow resistance adjustment device, the velocity and direction of the fluid gradually change, the pressure drop is reduced step by step, realizing multi-stage throttling and noise reduction, and different flow resistance values ​​can be achieved through different combinations of the flow resistance adjustment device, realizing adjustable flow resistance under the premise of the same specification model.

[0007] Furthermore, the diameter of the throttling disc is adapted to the diameter of the fluid channel, and its two sides are limited and fixed by limiting plates to limit its axial direction.

[0008] Furthermore, multiple throttling orifices are provided on the corresponding throttling disc, and the multiple throttling orifices are arranged in a spiral shape on the corresponding throttling disc. The number of orifices is opened according to the required flow resistance value, and the size or shape of the orifice is adjusted.

[0009] Furthermore, the throttling orifice is provided in three or more on the corresponding throttling disc.

[0010] Furthermore, the throttling orifice structure can be any one of a circular orifice, a fan-shaped orifice, or an irregularly shaped orifice.

[0011] Furthermore, the guide grooves are arranged in a spiral shape on the corresponding throttling discs, and include guide holes and guide plates.

[0012] Furthermore, the central axis of the guide hole does not coincide with the central axis of the throttling hole on the adjacent throttling disc; the guide plate is inclined outside the guide hole, and the two form a groove-like structure to guide the discharged liquid and make the fluid flow along a set path.

[0013] Furthermore, the guide hole is a triangular hole, and the guide plate is a triangular plate, together forming a triangular spiral guide groove.

[0014] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0015] (1) The flow resistance adjustment device of this utility model is provided with a throttling orifice 2 and a triangular spiral guide groove 3. When the medium passes through the flow resistance adjustment device, it flows along the spiral path. The speed and direction of the fluid gradually change, and the pressure drop is reduced step by step. This realizes multi-stage throttling and noise reduction. Different flow resistance values ​​can be achieved through different combinations of the flow resistance adjustment device, thus realizing the flow resistance adjustment under the premise of the same specification model.

[0016] (2) In the flow resistance adjustment device of this utility model, the throttling orifice 2 and the guide groove 3 on the adjacent throttling discs are not on the same axis, so that a liquid spiral cavity is formed between the adjacent throttling discs 1, thereby dissipating fluid energy. By controlling the tilt angle of the guide plate 302 on the throttling disc and the size of the orifice 2 and the guide orifice 301, better throttling and flow resistance control can be achieved, and the gap in the prior art where the valve flow resistance value cannot be changed can be filled.

[0017] (3) The design of the spiral cavity between adjacent throttling discs 1 in the flow resistance adjustment device of this utility model increases the throttling area and reduces the flow velocity of the medium while ensuring the same flow resistance value. Under high pressure, high flow velocity or medium containing particles, the design of the guide groove 3 can disperse the impact force of the fluid on the ball and valve seat, reduce wear, improve the durability of the ball valve, and greatly extend the adjustment life of the valve. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a ball valve flow resistance regulating device with a triangular spiral guide groove in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the throttling disc with a guide groove in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the throttling disk with throttling orifice in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the optional structure of the throttling disk in the embodiments of this utility model;

[0022] Figure 5 This is a structural diagram showing the arrangement of the regulating device applied to the ball valve in an embodiment of this utility model.

[0023] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-throttling disc, 2-throttling orifice, 3-guide groove, 301-guide orifice, 302-guide plate, 4-limiting plate, 5-valve ball, 501-fluid passage, 6-valve body, 601-first valve port, 602-second valve port, 7-valve stem, 8-valve seat assembly. Detailed Implementation

[0024] 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.

[0025] like Figure 1-5 As shown, this utility model provides a ball valve flow resistance adjustment device with a triangular spiral guide groove, including multiple sets of throttling discs 1 arranged parallel to each other in the fluid channel 501, throttling holes 2 and guide grooves 3 respectively provided on adjacent throttling discs 1, and a limiting plate 4 for axially limiting and fixing the throttling discs 1. A liquid spiral cavity is formed between adjacent throttling holes 2 and guide grooves 3. When the fluid medium passes through the flow resistance adjustment device, it flows along the spiral path, and the velocity and direction of the fluid gradually change, and the pressure drop is reduced step by step, realizing multi-stage throttling and noise reduction. Different flow resistance values ​​can be achieved through different combinations of the flow resistance adjustment device, realizing adjustable flow resistance under the premise of the same specification model.

[0026] like Figure 1-3 As shown, the diameter of the throttling disc 1 is adapted to the diameter of the fluid channel 501, and its two sides are limited and fixed by the limiting plate 4 to limit its axial direction.

[0027] Multiple throttling orifices 2 are provided on the corresponding throttling disc 1. The multiple throttling orifices 2 are arranged in a spiral shape on the corresponding throttling disc 1. The number of orifices 2 can be opened according to the flow resistance value requirements, and the size or shape of their orifices can be adjusted.

[0028] The flow guide trough 3 is provided in a spiral shape on the corresponding throttling disc 1, and includes a flow guide hole 301 and a flow guide plate 302; wherein the central axis of the flow guide hole 301 does not coincide with the central axis of the throttling hole 2 on the adjacent throttling disc 1; the flow guide plate 302 is inclined outside the flow guide hole 301, and the two form a trough structure to guide the discharged liquid and make the fluid flow along a set path.

[0029] Furthermore, the guide hole 301 is a triangular hole, and the guide plate 302 is a triangular plate. Together, they form a triangular spiral guide groove 3. Multiple guide grooves 3 are spirally arranged on the corresponding throttling discs 1, so that the flow channel space of adjacent throttling discs 1 forms a liquid spiral. When the fluid medium passes through the liquid spiral cavity, it flows along the spiral path. The velocity and direction of the fluid gradually change, and the pressure drop is reduced step by step, realizing multi-stage throttling and noise reduction. Different flow resistance values ​​can be achieved by different combinations of guide grooves 3 and throttling holes 2, that is, by adjusting the distance between adjacent throttling discs 1 or the relative angle between adjacent guide grooves 3 and throttling holes 2, thus realizing adjustable flow resistance under the premise of the same specification model.

[0030] like Figure 4 As shown in this embodiment of the invention, the throttling orifice 2 is provided with three or more on the corresponding throttling disc 1, and the orifice can be circular, fan-shaped, or irregularly shaped, depending on the flow resistance requirements. The guide groove 3 is provided with three or more on the corresponding throttling disc 1, and the number can be selected according to the flow resistance requirements.

[0031] like Figure 5 As shown in this embodiment of the present invention, the fluid channel 501 is used to install the throttling disc 1. The fluid channel 501 is horizontally disposed inside the valve ball 4, and its two ends are respectively connected to the first valve port 601 and the second valve port 602 at both ends of the valve body 6. The fluid medium enters from the first valve port 601, and after the flow resistance is adjusted by the flow resistance adjustment device, it flows out from the second valve port 602. The bottom and top of the valve ball 5 are connected to the valve stem 7, and are rotated by the valve stem 7 to open and close the valve. Valve seat assemblies 8 are also provided on both sides of the valve ball 5. The valve seat assemblies 8 are located inside the valve body 6 and seal both sides of the valve ball 3 to prevent fluid from seeping into the cavity of the valve body 1 from the side of the valve ball 3.

[0032] When the ball valve flow resistance regulating device of this utility model is used for flow resistance regulation, the fluid medium enters from the first valve port 601. When it passes through multiple parallel throttling discs 1 in the fluid channel 501, a liquid spiral cavity is formed between adjacent throttling holes 2 and guide grooves 3. The fluid medium flows along the spiral path, and the speed and direction of the fluid gradually change. The pressure drop is reduced step by step, realizing multi-stage throttling and noise reduction. The fluid medium that has completed throttling and noise reduction flows out from the second valve port 602.

[0033] The flow resistance adjustment device of this utility model has a throttling orifice 2 and a triangular spiral guide groove 3. When the medium passes through the flow resistance adjustment device, it flows along the spiral path. The speed and direction of the fluid gradually change, and the pressure drop is reduced step by step, realizing multi-stage throttling and noise reduction. Different flow resistance values ​​can be achieved by different combinations of the flow resistance adjustment device, realizing the flow resistance adjustment under the premise of the same specification model.

[0034] In this utility model's flow resistance adjustment device, the throttling orifice 2 and the guide groove 3 on adjacent throttling discs are not on the same axis, thus forming a liquid spiral cavity between adjacent throttling discs 1, thereby dissipating fluid energy. By controlling the tilt angle of the guide plate 302 on the throttling disc and the dimensions of the orifice 2 and the guide orifice 301, better throttling and flow resistance control are achieved, filling the gap in the prior art where the valve flow resistance value could not be changed.

[0035] The flow resistance regulating device of this utility model features a spiral cavity design between adjacent throttling discs 1, which increases the throttling area and reduces the flow velocity of the medium while ensuring the same flow resistance value. Under high pressure, high flow velocity, or particulate medium conditions, the design of the guide groove 3 can disperse the impact force of the fluid on the ball and valve seat, reduce wear, improve the durability of the ball valve, and greatly extend the regulating life of the valve.

[0036] 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 ball valve flow resistance regulating device with a triangular spiral guide groove, characterized in that, include: Multiple sets of throttling discs (1) are arranged in parallel within the fluid channel (501), throttling holes (2) and guide grooves (3) are respectively provided on adjacent throttling discs (1), and a limiting plate (4) is used to axially limit and fix the throttling discs (1). A liquid spiral cavity is formed between adjacent throttling orifices (2) and guide grooves (3). When the fluid medium passes through the flow resistance adjustment device, it flows along the spiral path. The speed and direction of the fluid gradually change, and the pressure drop is reduced step by step. Multi-stage throttling and noise reduction are achieved. Different flow resistance values ​​can be achieved through different combinations of the flow resistance adjustment device, and the flow resistance can be adjusted under the premise of the same specification model.

2. The ball valve flow resistance regulating device with a triangular spiral guide groove according to claim 1, characterized in that, The diameter of the throttling disc (1) is adapted to the diameter of the fluid channel (501), and its two sides are limited and fixed by the limiting plate (4) to limit its axial direction.

3. A ball valve flow resistance regulating device with a triangular spiral guide groove according to any one of claims 1-2, characterized in that, The throttling orifice (2) is provided on the corresponding throttling disk (1) in multiple ways. The multiple throttling orifices (2) are arranged in a spiral shape on the corresponding throttling disk (1). The number of orifices (2) is opened according to the flow resistance value requirement and the size or shape of the orifice is adjusted.

4. The ball valve flow resistance regulating device with a triangular spiral guide groove according to claim 3, characterized in that, The throttling orifice (2) is provided in three or more on the corresponding throttling disc (1).

5. The ball valve flow resistance regulating device with a triangular spiral guide groove according to claim 3, characterized in that, The throttling orifice (2) can be any one of a circular orifice, a fan-shaped orifice, or an irregularly shaped orifice.

6. A ball valve flow resistance regulating device with a triangular spiral guide groove according to any one of claims 1-2, characterized in that, The guide groove (3) is provided in a spiral shape on the corresponding throttling disc (1), and includes a guide hole (301) and a guide plate (302).

7. A ball valve flow resistance regulating device with a triangular spiral guide groove according to claim 6, characterized in that, The central axis of the guide hole (301) does not coincide with the central axis of the throttling hole (2) on the adjacent throttling disc (1); the guide plate (302) is inclined outside the guide hole (301), and the two form a groove structure to guide the discharged liquid and make the fluid flow along the set path.

8. The ball valve flow resistance regulating device with a triangular spiral guide groove according to claim 6, characterized in that, The guide hole (301) is a triangular hole, and the guide plate (302) is a triangular plate, together forming a triangular spiral guide groove (3).

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