Ball valve for guiding fluid

Abstract

The utility model discloses a ball valve for guiding fluid, relates to the technical field of ball valves, and solves the problem that the fluid cannot guide the impact direction. Comprising a ball body and a valve body, a flow channel is formed in the ball body, an inlet cavity and an outlet cavity are formed in the valve body, a guide mechanism is fixedly installed in the flow channel, the guide mechanism comprises a plurality of annular guide ring pieces, the guide ring pieces are concentrically arranged and incline in the same direction, and a gap for fluid to pass through is formed between every two adjacent guide ring pieces. The guide mechanism is arranged in the ball valve, the flowing direction of fluid can be effectively controlled, the problem that a traditional ball valve cannot guide the impact direction of the fluid is solved, and the function that the fluid is selectively guided to gather and impact towards the center of a flow channel or disperse and impact towards the wall of the flow channel according to different application scenes is achieved; the control capability of the ball valve to fluid flow is enhanced, so that the ball valve can better adapt to different working condition requirements, and the applicability and functionality of the ball valve in various fluid conveying systems are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve for guiding fluids. Background Art

[0002] Traditional ball valves mainly achieve the opening and closing functions by rotating a ball with a channel. However, in certain application scenarios, there are special requirements for the precise guidance of the fluid, and the traditional ball valve design has certain limitations in this regard.

[0003] On the one hand, in fields such as oil extraction and transportation, chemical raw material processing, etc. involving high-pressure and high-speed fluid conditions, when the fluid passes through the ball valve, due to the lack of an effective internal guide structure, the fluid usually presents a natural dispersed flow state. A large amount of fluid directly impacts the flow channel wall under the action of inertia, and this impact mode brings many disadvantages. Under high-pressure and high-speed environments, the flow channel wall is frequently subjected to strong impacts, resulting in increased wear on the material surface, which greatly shortens the service life of the ball valve. According to relevant industry statistics, in some long-distance crude oil pipelines, traditional ball valves need to be replaced or repaired every 1-2 years on average due to severe wear of the flow channel wall, which not only consumes a lot of manpower and material resources, but also causes production interruptions due to downtime maintenance, resulting in high economic losses. At the same time, after the flow channel wall is damaged, the sealing performance of the ball valve decreases, and the risk of leakage increases significantly. Moreover, the turbulence phenomenon caused by the fluid impacting the flow channel wall will cause a sharp increase in local pressure loss, resulting in reduced energy efficiency of the entire fluid transportation system.

[0004] On the other hand, in some scenarios that require strict control of flow accuracy, such as the precise batching process in pharmaceutical processes, the fine metering process in high-end food and beverage production, and the precise control of trace fluids in cutting-edge scientific research experiments, traditional ball valves are also difficult to meet the needs. Due to the inability to effectively guide the flow direction of the fluid, the flow of the fluid in the ball valve is chaotic, which makes the flow measurement error high and cannot guarantee the stability of product quality and the accuracy of experimental data. In some application scenarios, in order to improve the efficiency of energy transfer or enhance the effects of certain physical processes, it is necessary to guide the fluid to the center of the flow channel for concentrated impact. For example, in processes such as efficient mixing, rapid heating or cooling, the concentrated impact of the fluid can significantly improve the heat exchange efficiency or reaction rate. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a ball valve for guiding fluid, which solves the problem that the fluid cannot guide the impact direction.

[0006] The technical solution of the utility model comprises a sphere and a valve body, a flow channel is provided in the sphere, an inlet cavity and an outlet cavity are provided in the valve body, a guide mechanism is fixedly installed in the flow channel, the guide mechanism comprises a plurality of annular guide ring pieces, the plurality of guide ring pieces are concentrically arranged and inclined in the same direction, and there are intervals between adjacent guide ring pieces for fluid to pass through.

[0007] By adopting the above technical solution, by setting a guiding mechanism inside the ball valve, the direction of fluid flow can be effectively controlled, which solves the problem that traditional ball valves cannot guide the direction of fluid impact. The function of selectively guiding the fluid to gather impact toward the center of the flow channel or disperse impact toward the flow channel wall according to different application scenarios is realized, which enhances the ball valve's control ability over fluid flow, enables it to better adapt to different working conditions, and improves the applicability and functionality of the ball valve in various fluid delivery systems.

[0008] In a possible design, the guide mechanism further includes cross-shaped fixing ribs, the fixing ribs connect the guide ring pieces, and the fixing ribs are also fixedly connected to the inner wall of the flow channel.

[0009] With the above design, the fixed ribs not only enhance the structural stability of the guide ring, but also ensure a firm connection between the guide mechanism and the ball, which helps to improve the working reliability of the entire valve and maintain good performance under high pressure environments.

[0010] In a possible design, the inclination angle between the guide ring piece and the central axis of the flow channel is between 30° and 60°.

[0011] With the above design, a reasonable inclination angle setting enables the fluid to flow along a preset path under the action of the guide ring, which can effectively concentrate the fluid impact force and evenly disperse the fluid pressure, thereby adapting to the needs of different working conditions.

[0012] In a possible design, there are two guide mechanisms, which are respectively located at the flow passage openings close to the inlet cavity and the outlet cavity, and the guide rings of the two guide mechanisms have the same inclination direction.

[0013] By adopting the above design, by setting guide mechanisms at both ends of the flow channel, the fluid can be bidirectionally regulated according to actual needs, which is particularly suitable for application scenarios that require high-precision flow control, such as the precise batching process in the pharmaceutical process.

[0014] In a possible design, the inclination direction of the guide ring piece is inclined inward from the inlet cavity to the outlet cavity toward the central axis of the flow channel.

[0015] The above design is advantageous for concentrating the fluid at the center of the flow channel, and is suitable for situations where the heat exchange efficiency or reaction rate needs to be enhanced, such as an efficient mixing process.

[0016] In a possible design, the cavity wall of the outlet cavity is formed into a constricted shape that narrows inwardly.

[0017] With the above design, the necking shape further strengthens the tendency of the fluid to gather toward the center, improves the kinetic energy utilization rate of the fluid, and is suitable for occasions where the energy transfer efficiency needs to be improved.

[0018] In a possible design, the inclination direction of the guide ring piece is inclined outward from the inlet cavity to the outlet cavity away from the central axis of the flow channel.

[0019] The above design is conducive to dispersing the fluid to the flow channel wall and reducing the direct impact on the central area of ​​the flow channel. It is suitable for situations where the central components of the flow channel need to be protected from damage or the fluid pressure needs to be evenly distributed.

[0020] In a possible design, the cavity wall of the outlet cavity is formed into a flared shape expanding outward.

[0021] With the above design, the flared shape can help the fluid flow out of the valve more smoothly, reduce the pressure loss when the fluid leaves the valve, and optimize the overall performance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the appearance structure of the sphere of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the cross section of the sphere of the utility model;

[0024] Figure 3 It is a cross-sectional view of the first embodiment of the utility model;

[0025] Figure 4 It is a cross-sectional view of the second embodiment of the utility model;

[0026] Among them, 1. sphere; 11. flow channel; 2. valve body; 21. inlet cavity; 22. outlet cavity; 3. guide mechanism; 31. guide ring; 32. spacer; 33. fixing rib. DETAILED DESCRIPTION Embodiment 1

[0027] like Figure 1-3A ball valve for guiding fluid is shown, comprising a ball 1 and a valve body 2, wherein a flow channel 11 is provided in the ball 1, an inlet cavity 21 and an outlet cavity 22 are provided in the valve body 2, a guide mechanism 3 is fixedly installed in the flow channel 11, and the guide mechanism 3 comprises a plurality of annular guide ring pieces 31, wherein the plurality of guide ring pieces 31 are concentrically arranged and inclined in the same direction, and there is a gap 32 between adjacent guide ring pieces 31 for fluid to pass through. The guide ring pieces 31 force the fluid to flow along a preset path, reduce the generation of disordered vortexes, and reduce pressure loss. The guide ring pieces 31 are made of a sheet-like body made of steel to ensure the structural strength of the guide ring pieces 31. The guide ring pieces 31 are formed by an integrated welding or compression molding process, and are seamlessly fitted to the inner wall of the flow channel 11 of the ball 1, and can still maintain structural integrity when subjected to high pressure, and avoid the risk of leakage caused by assembly gaps.

[0028] The inclination direction of the guide ring piece 31 is inclined inward from the inlet cavity 21 to the outlet cavity 22 toward the central axis of the flow channel 11, and the cavity wall of the outlet cavity 22 forms a constricted shape that shrinks inward. When the inclination angle of the guide ring piece 31 is toward the center of the flow channel 11, the fluid is gradually converged to the central axis area to form a high-speed converged jet to prevent the fluid from disorderly impacting the wall of the flow channel 11. The inward inclination of the guide ring piece 31 can guide the fluid to converge and impact toward the center of the flow channel 11, so that the fluid is concentrated in the central area of ​​the flow channel 11. The constricted shape of the outlet cavity 22 further constrains and accelerates the gathered fluid, so that the fluid flows out of the ball valve at a higher speed and in a more concentrated state. This use is very useful in application scenarios that require improving energy transfer efficiency, enhancing heat exchange effects, or promoting chemical reactions. For example, in processes such as efficient mixing, rapid heating or cooling, it can significantly improve the effects of related physical processes. By transferring the impact area, the material fatigue cycle of the flow channel 11 wall and the sealing surface is significantly extended. For example, in the crude oil transportation scenario, the ball valve replacement cycle can be extended from 1-2 years to 3-5 years, and the maintenance cost is reduced by more than 50%.

[0029] The guide mechanism 3 also includes a cross-shaped fixed rib 33, which connects each guide ring piece 31 and is fixedly connected to the inner wall of the flow channel 11. The fixing method of the fixed rib 33 and the inner wall of the flow channel 11 can be welding, screwing or other fixing methods. The fixed rib 33 plays a role in stabilizing the guide ring piece 31. On the one hand, it connects each guide ring piece 31 into an integral structure to prevent the guide ring piece 31 from shifting or shaking under the impact of the fluid, thereby ensuring the stability and reliability of the guide mechanism 3. On the other hand, by being fixedly connected to the inner wall of the flow channel 11, the entire guide mechanism 3 can be firmly installed in the flow channel 11, ensuring that it will not be separated from the flow channel 11 due to the force of the fluid during long-term use, thereby continuously and effectively playing the function of guiding the fluid.

[0030] There are two guide mechanisms 3, which are respectively located at the mouths of the flow channel 11 near the inlet chamber 21 and the outlet chamber 22, which is equivalent to being located at the two ends of the flow channel 11; and the guide rings 31 of the two guide mechanisms 3 are inclined in the same direction. The setting of the two guide mechanisms 3 further enhances the guiding effect on the fluid. When the fluid enters the ball valve, the guide mechanism 3 near the inlet chamber 21 initially guides the fluid to make it flow in a predetermined direction; when the fluid flows through the inside of the ball 1 and reaches the vicinity of the outlet chamber 22, the second guide mechanism 3 guides and corrects the fluid again to ensure that the fluid can flow out of the ball valve in a more accurate direction and state, thereby improving the accuracy and stability of the fluid guidance. Embodiment 2

[0031] The difference from the first embodiment is that:

[0032] like Figure 4 As shown, the inclination direction of the guide ring piece 31 is inclined outward from the inlet cavity 21 to the outlet cavity 22 away from the central axis of the flow channel 11, and the cavity wall of the outlet cavity 22 forms a flared shape that expands outward. When the inclination angle of the guide ring piece 31 is toward the wall of the flow channel 11, the fluid is guided to different areas of the wall of the flow channel 11, and the kinetic energy is dispersed by expanding the impact area. For example, under high-pressure conditions of oil pipelines, the single-point impact intensity can be reduced, and the wear rate of the wall of the flow channel 11 can be reduced by 10%-30%. The guide ring piece 31 is tilted outward to guide the fluid to disperse the impact in the direction of the wall of the flow channel 11, so that the fluid can be more evenly distributed in the flow channel 11. The flared shape of the outlet cavity 22 further expands the diffusion range of the fluid, allowing the fluid to flow out of the ball valve in a more dispersed state. This embodiment is suitable for some application scenarios where the fluid needs to be evenly dispersed, such as in some processes where the fluid needs to be covered over a large area or evenly sprayed, and can meet the requirements for fluid dispersion.

[0033] In addition, it is worth mentioning that although there are differences in the tilting direction between Example 1 and Example 2, they have great flexibility in the installation process of actual engineering applications. Since the installation direction of the ball 1 in the valve body 2 is not fixed, the operator can easily adjust the installation direction of the ball 1 according to the specific working conditions and the actual flow direction requirements of the fluid, thereby realizing the flexible switching of the guide ring 31 from tilting inward to guide the fluid to the center of the flow channel 11 to tilting outward to cause the fluid to disperse the impact toward the wall of the flow channel 11. This flexible adjustment method enables the ball valve of the utility model to be widely used in more complex and changeable industrial scenarios, greatly expanding its scope of application. There is no need to design a variety of complex structures to meet different flow direction requirements, effectively reducing production costs and installation difficulties.

Claims

1. A ball valve for guiding fluid, comprising a ball (1) and a valve body (2), wherein a flow channel (11) is provided in the ball (1), and an inlet cavity (21) and an outlet cavity (22) are provided in the valve body (2), characterized in that: A guide mechanism (3) is fixedly installed in the flow channel (11), and the guide mechanism (3) comprises a plurality of annular guide ring pieces (31). The plurality of guide ring pieces (31) are concentrically arranged and inclined in the same direction, and there are gaps (32) between adjacent guide ring pieces (31) for fluid to pass through.

2. The fluid-guiding ball valve according to claim 1, characterized in that: The guide mechanism (3) further comprises a cross-shaped fixed rib (33), wherein the fixed rib (33) connects each guide ring piece (31), and the fixed rib (33) is also fixedly connected to the inner wall of the flow channel (11).

3. The ball valve for guiding fluid according to claim 1, characterized in that: The inclination angle between the guide ring piece (31) and the central axis of the flow channel (11) is between 30° and 60°.

4. The ball valve for guiding fluid according to claim 1, characterized in that: The guide mechanisms (3) have two of them, which are respectively located at the openings of the flow channel (11) close to the inlet cavity (21) and the outlet cavity (22), and the guide ring pieces (31) of the two guide mechanisms (3) have the same inclination direction.

5. The ball valve for guiding fluid according to any one of claims 1 to 4, characterized in that: The inclination direction of the guide ring piece (31) is inwardly inclined from the inlet cavity (21) to the outlet cavity (22) towards the central axis of the flow channel (11).

6. The ball valve for guiding fluid according to claim 5, characterized in that: The cavity wall of the outlet cavity (22) forms a constricted shape that shrinks inwards.

7. The ball valve for guiding fluid according to any one of claims 1 to 4, characterized in that: The inclination direction of the guide ring piece (31) is inclined outwardly from the inlet cavity (21) to the outlet cavity (22) away from the central axis of the flow channel (11).

8. The fluid-guiding ball valve according to claim 7, characterized in that: The cavity wall of the outlet cavity (22) is formed into a flared shape that expands outwards.

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