Progressive high pressure ball valve

Abstract

The present application relates to the technical fields of high-pressure ball valve, in particular to a progressive high-pressure ball valve. The progressive high-pressure ball valve comprises a ball valve body, the ball valve body comprises a first valve pipe and a second valve pipe, the inside of an inflow channel is provided with a flow contraction mechanism, the flow contraction mechanism comprises a flow disturbance assembly, the flow contraction mechanism can form bifurcation in the inside of the inflow channel, and the flow disturbance assembly can disturb the liquid conveyed in the pipeline. The flow contraction mechanism in the inflow channel can divide and depress the liquid before the liquid impacts the ball, the direct impact of high-impact liquid flow on the surface of the ball is reduced, when the liquid flows through the inflow channel, the flow disturbance assembly disturbs the liquid through the obliquely arranged flow disturbance ring strip, the impact force of the liquid flow is effectively reduced, the impurities in the liquid are assisted to be blocked through the formed interlayer structure, and the possibility that the impurities directly impact the surface of the ball is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-pressure ball valves, in particular to a progressive high-pressure ball valve. BACKGROUND

[0002] In modern industrial production and various engineering applications, high-pressure working conditions are very common. The pressure sources of high-pressure working conditions are diverse. On the one hand, power equipment such as water pumps and compressors do work on fluids, giving them high pressure energy and driving them to flow in the system. On the other hand, the layout characteristics of the pipeline system, such as the existence of narrow areas, height differences, or the setting of throttling devices in the system, will cause the pressure of the fluid to accumulate in the local area.

[0003] As a key valve, the high-pressure ball valve bears the responsibility of cutting off, connecting and regulating the flow of fluid medium in a high-pressure environment. By rotating the ball around its own axis, it realizes fluid conduction, cutting and flow regulation.

[0004] However, in actual use, the ball, as the core and key component, is directly subjected to the impact of water flow for a long time. When the impact force of the water flow exceeds the limit that the ball material can withstand, or the ball has defects such as wear and tear and aging due to long-term use, it is easy to break. Once the ball breaks, not only will it cause serious fluid leakage accidents and interfere with the production process, but it may also cause safety hazards.

[0005] On the other hand, some ball valves are used in complex environments containing impurities, such as in pipeline transportation scenarios. The water flow often carries impurities such as small stones. These impurities, wrapped in high-speed water flow, impact the surface of the ball valve, causing the ball valve surface to be easily damaged by wear and tear, and thus affecting the sealing performance, flow regulation accuracy and overall service life of the ball valve.

[0006] Therefore, there is an urgent need for a progressive high-pressure ball valve to solve the above problems. SUMMARY

[0007] The purpose of the present application is to provide a progressive high-pressure ball valve to solve the problems raised in the background.

[0008] To achieve the above purpose, the present application provides a progressive high-pressure ball valve, which comprises a ball valve body, the ball valve body comprises a first valve pipe and a second valve pipe, the first valve pipe and the second valve pipe are mutually butted, an internal flow channel is formed inside the butting end of the first valve pipe and the second valve pipe, an inlet flow channel is formed inside the first valve pipe, an outlet flow channel is formed inside the second valve pipe, and the inlet flow channel, the internal flow channel and the outlet flow channel are connected.

[0009] The inner rotation of the middle flow channel is provided with a ball, the top of the ball is connected with a control element, and the other end of the control element is installed on the surface of the ball valve body;

[0010] The inner part of the inlet flow channel is provided with a flow contraction mechanism, the flow contraction mechanism includes a flow disturbance assembly, the flow contraction mechanism can form a bifurcation in the inner part of the inlet flow channel, and the flow contraction mechanism can assemble the inner part of the inlet flow channel into a progressive structure, the flow disturbance assembly includes a flow disturbance ring strip fixedly installed on the inner wall of the inlet flow channel, the flow disturbance ring strip can change the flow state and direction of the liquid in the inlet flow channel, when the transported liquid passes through the inlet flow channel, the flow disturbance ring strip interacts with the liquid in the inlet flow channel, so that a complex flow field structure is formed in the inlet flow channel, and the flow disturbance ring strip can also assist in blocking impurities in the liquid.

[0011] As a further improvement of the technical solution, the first valve pipe includes a fixed pipe element, one end of the fixed pipe element is connected with the second valve pipe, the other end of the fixed pipe element is connected with the middle valve pipe, the middle valve pipe is composed of a first middle pipe and a second middle pipe, the second middle pipe is fixedly connected with the end of the fixed pipe element away from the second valve pipe, a sleeve pipe is sleeved on the surface of the middle valve pipe, the surface of the middle valve pipe is attached to the inner wall of the sleeve pipe, and the sleeve pipe is movably connected with the fixed pipe element.

[0012] As a further improvement of the technical solution, the flow contraction mechanism includes a side ring fixedly installed on the inner wall of the sleeve pipe, the side ring is in an inclined state close to the inlet flow channel, the inner wall of the second middle pipe is fixedly installed with a flow distribution element, and the flow distribution element is vertically installed.

[0013] As a further improvement of the technical solution, two flow contraction channels are formed between the side ring and the flow distribution element, the two flow contraction channels are used for distributing the transported liquid, two ends of the two flow contraction channels are respectively an initial flow channel and a final flow channel, the inner part of the end of the inlet flow channel close to the second valve pipe is the final flow channel, the end of the inlet flow channel away from the second valve pipe is the initial flow channel, and the initial flow channel, the two flow contraction channels and the final flow channel are connected.

[0014] As a further improvement of the technical solution, a plurality of flow disturbance ring strips are arranged, the plurality of flow disturbance ring strips are all in an inclined state, a plurality of interlayers are formed between the plurality of flow disturbance ring strips and the inner wall of the inlet flow channel, and the interlayers can assist in intercepting impurities in the transported liquid.

[0015] As a further improvement of the technical solution, the side close to the second middle pipe of the first middle pipe is fixedly installed with an extension edge strip, the side attached to the first middle pipe of the second middle pipe is provided with an inner recess groove attached to the surface of the extension edge strip, and the attached surfaces of the first middle pipe and the second middle pipe are both fixedly installed with clamping pads made of elastic material.

[0016] As a further improvement of the technical solution, a buckle groove is arranged on the upper end of the inner cavity of the first middle pipe, and the inner wall of the buckle groove is attached to the surface of the flow dividing piece.

[0017] As a further improvement of the technical solution, an end corner is arranged in the middle of the side of the flow dividing piece close to the primary flow channel, and the inner wall of the end corner is in a circular arc structure.

[0018] As a further improvement of the technical solution, the inner wall of the final flow channel is relatively thicker than the inner wall of the primary flow channel, for buffering the impact of the water flow.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] In the progressive high-pressure ball valve, when the ball valve body is in use, liquid flows from the inflow channel into the middle flow channel, and by adjusting the ball, the liquid enters the outflow channel from the middle flow channel for output. In this process, the flow-reducing mechanism in the inflow channel can divide and reduce the pressure of the liquid before it impacts the ball, thereby reducing the direct impact of the high-impact water flow on the surface of the ball, prolonging the service life of the ball and reducing wear. At the same time, the flow-reducing mechanism gradually disperses the pressure of the liquid through the progressive structure when the liquid flows through the inflow channel, further optimizing the flow state of the fluid.

[0021] Moreover, when the liquid flows through the inflow channel, the flow disturbance assembly efficiently disturbs the liquid through the obliquely arranged flow disturbance ring, not only effectively reducing the impact force of the water flow, but also assisting in blocking impurities in the liquid through the formation of a sandwich structure, reducing the possibility of impurities directly impacting the surface of the ball, not only protecting the ball, but also reducing the potential damage of impurities to the internal structure of the valve, improving the overall operational stability and reliability of the valve. In addition, the multi-segment distribution design of the flow disturbance assembly ensures that the liquid can achieve uniform flow disturbance in the primary flow channel, flow-reducing channel and final flow channel, further optimizing the flow efficiency of the fluid, so that the liquid can smoothly converge when entering the middle flow channel, ensuring the continuity and stability of the overall water flow delivery. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the exploded structure of the ball valve body of the present application;

[0024] Figure 3 is a schematic diagram of the exploded structure of the first valve pipe of the present application;

[0025] Figure 4 is a schematic diagram of the overall exploded structure of the present application;

[0026] Figure 5 is a schematic diagram of the structure at A of the present application; Figure 4 ​

[0027] Figure 6 Figure 1 is a schematic view of the overall structure of the present application;

[0028] Figure 7 Figure 2 is a schematic view of the structure of the present application when water flows through the inside of the inlet channel;

[0029] Figure 8 Figure 3 is a schematic view of the cross-sectional structure of the sleeve of the present application;

[0030] Figure 9 Figure 4 is a schematic view of the disassembled structure of the first and second middle pipes of the present application.

[0031] The meanings of the various reference numbers in the figures are as follows:

[0032] 1. Ball valve body; 11. First valve pipe; 12. Second valve pipe; 13. Control member; 14. Ball; 15. Middle flow channel; 16. Inlet channel; 17. Outlet channel;

[0033] 111. Middle valve pipe; 112. Sleeve; 113. Fixed pipe member; 1101. First middle pipe; 1102. Second middle pipe;

[0034] 2. Throttling mechanism; 21. Edge ring; 22. Flow dividing member; 23. Throttling channel; 24. Initial flow channel; 25. Final flow channel;

[0035] 3. Turbulence assembly; 31. Turbulence ring strip; 32. Interlayer;

[0036] 4. Buckling groove; 41. End angle; 43. Clamping pad. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0038] Embodiment, please refer to Figures 1-3 The present embodiment aims to provide a progressive high-pressure ball valve, which comprises a ball valve body 1, the ball valve body 1 comprises a first valve pipe 11 and a second valve pipe 12, the first valve pipe 11 and the second valve pipe 12 are in butt joint with each other, a middle flow channel 15 is formed inside the butt joint end of the first valve pipe 11 and the second valve pipe 12, an inlet channel 16 is formed inside the first valve pipe 11, an outlet channel 17 is formed inside the second valve pipe 12, and the inlet channel 16, the middle flow channel 15 and the outlet channel 17 are in communication;

[0039] The inner rotation of the middle flow channel 15 is provided with a ball 14, the top of the ball 14 is connected with a control member 13, the other end of the control member 13 is installed on the surface of the ball valve body 1, the inner part of the inflow channel 16 is provided with a flow contraction mechanism 2, the flow contraction mechanism 2 comprises a turbulence assembly 3, the flow contraction mechanism 2 can form a bifurcation in the inner part of the inflow channel 16, and the flow contraction mechanism 2 can assemble the inner part of the inflow channel 16 into a progressive structure, when the liquid transported passes through the inflow channel 16, the turbulence assembly 3 can disturb the liquid transported in the pipeline, and can also assist in blocking the impurities in the liquid.

[0040] During the operation of the ball valve body 1, the ball valve body 1 needs to be installed, such as Figure 2 As can be seen, the shell part of the ball valve body 1 is formed by splicing the first valve pipe 11 and the second valve pipe 12, the specific structure of the first valve pipe 11 is disclosed below, the first valve pipe 11 comprises a fixed pipe 113, one end of the fixed pipe 113 is connected with the second valve pipe 12, the other end of the fixed pipe 113 is connected with a middle valve pipe 111, the middle valve pipe 111 is composed of a first middle pipe 1101 and a second middle pipe 1102, the second middle pipe 1102 is fixedly connected with the end of the fixed pipe 113 away from the second valve pipe 12, the surface of the middle valve pipe 111 is sleeved with a sleeve pipe 112, the surface of the middle valve pipe 111 is attached to the inner wall of the sleeve pipe 112, and the sleeve pipe 112 is movably connected with the fixed pipe 113.

[0041] First, referring to Figure 3 and combining Figure 8 It is shown that when installing the first valve pipe 11, the top of the first middle pipe 1101 and the second middle pipe 1102 needs to be attached and clamped to ensure the stability of the basic structure of the middle valve pipe 111, then the sleeve pipe 112 is sleeved on the surface of the spliced first middle pipe 1101 and the second middle pipe 1102, wherein the sleeve pipe 112 and the fixed pipe 113 are connected by flanges, in addition, the side inner wall of the sleeve pipe 112 attached to the end of the middle valve pipe 111 is provided with a sealing gasket (made of rubber material), when the ball valve body 1 works, the liquid flows in the pipeline, the liquid pressure will act on the pipeline wall, the sealing gasket has good elasticity and sealing property, and will be compressed under the liquid pressure, effectively preventing the liquid from leaking out of the gap, greatly improving the overall sealing property of the ball valve body 1, and ensuring the safe and stable flow of the liquid.

[0042] Combining Figure 4As shown, the first valve pipe 11 adopts the sleeve pipe 112 and the middle valve pipe 111 sleeve connection mode, which can significantly enhance the overall pressure resistance of the ball valve body 1. When the ball valve body 1 works, the liquid pressure in the pipeline acts on the pipeline wall, the middle valve pipe 111 directly bears the liquid pressure, and the sleeve pipe 112 is sleeved outside the middle valve pipe 111. When the liquid pressure acts on the middle valve pipe 111, part of the pressure will be transmitted to the sleeve pipe 112. Because the sleeve pipe 112 has a certain strength and rigidity, it can share the pressure borne by the middle valve pipe 111, so that the entire structure can withstand greater pressure without deformation and damage, ensuring the normal and stable operation of the ball valve in a high-pressure environment.

[0043] When the ball valve body 1 works, the operator rotates the control member 13, which transmits the rotating force to the ball 14, so that the ball 14 rotates around its own axis in the middle flow channel 15. When the liquid passes through the ball 14, it flows out from the hole in the interior of the ball 14. The hole in the interior of the ball 14 is smaller than the size of the flow channel. When the water flow is impacted, part of the water flow will impact the surface of the ball 14 because the hole is relatively small with respect to the ball 14. The ball 14 is easily damaged on the surface after being impacted by the water flow for a long time. Therefore, the flow-reducing mechanism 2 is arranged in the interior of the first valve pipe 11 to reduce the impact force of the water flow directly on the surface of the ball 14. The specific structure of the flow-reducing mechanism 2 is disclosed below. The flow-reducing mechanism 2 includes the edge ring 21 fixedly installed on the inner wall of the sleeve pipe 112. The side of the edge ring 21 close to the inflow channel 16 is in an inclined state. The inner wall of the second middle pipe 1102 is fixedly installed with the flow divider 22, which is vertically installed.

[0044] The edge ring 21 and the flow divider 22 form two flow-reducing channels 23, which are used for dividing and conveying the transported liquid. The two ends of the two flow-reducing channels 23 are the initial flow channel 24 and the final flow channel 25, respectively. The interior of the end of the inflow channel 16 close to the second valve pipe 12 is the final flow channel 25, and the end of the inflow channel 16 away from the second valve pipe 12 is the initial flow channel 24. The initial flow channel 24, the two flow-reducing channels 23 and the final flow channel 25 are connected.

[0045] Observation Figure 6 and Figure 7It can be seen that, by fixing the edge ring 21 on the inner wall of the sleeve 112 and the flow divider 22 vertically installed on the inner wall of the second middle pipe 1102, the flow divider 22 cooperates with the edge ring 21 to form two convergent flow passages 23 in the middle of the sleeve 112. When the water flow with strong impact force flows through here, the two convergent flow passages 23 divide the water flow into two, so that the originally concentrated impact force is dispersed into two flow passages, thereby reducing the force when the water flow impacts the surface of the ball body 14, and reducing the damage to the ball body 14. According to the principle of mechanics, when the water flow impacts an object, the size of the impact force is related to factors such as the flow rate, flow speed and impact angle of the water flow. In the case of constant total water flow, the water flow is divided into two paths through the convergent flow passages 23, which is equivalent to dispersing the originally concentrated water flow energy into two channels. The flow rate and flow speed of the water flow in each convergent flow passage 23 are relatively reduced. Since the impact force is proportional to the flow rate and flow speed of the water flow, the impact force of the water flow in each convergent flow passage 23 on the surface of the ball body 14 is also correspondingly reduced after the water flow is divided. In addition, the impact angle of the divided water flow is also changed compared to the original concentrated water flow. The interaction of multiple directions of smaller impact forces further weakens the overall impact effect on the surface of the ball body 14.

[0046] In addition, referring again to Figure 7 As shown, the first valve pipe 11 has an initial flow passage 24, a convergent flow passage 23 and a final flow passage 25 in sequence. The liquid divided by the convergent flow passage 23 will be gathered again before flowing to the middle flow passage 15. Since the liquid is only divided and then gathered inside the first valve pipe 11, the entire process is completed internally, so it will not adversely affect the delivery volume and delivery speed of the overall water flow, thereby ensuring that the water flow can continuously and stably flow from the inflow passage 16 to the outflow passage 17 through the middle flow passage 15.

[0047] During the process of the water flow passing through the first valve pipe 11, the inner wall of the edge ring 21 near the inflow passage 16 is in an inclined state. When the water flow passes through, the inclined edge ring 21 acts like a guide vane, guiding the water flow to enter the convergent flow passage 23 more orderly, avoiding water flow disorder. Moreover, during the process of the liquid flowing from the convergent flow passage 23 to the final flow passage 25 and then entering the middle flow passage 15, the flow guiding effect of the inclined edge ring 21 enables the water flow to be more smoothly gathered, thereby improving the water flow gathering effect and making the entire liquid delivery process more stable and efficient.

[0048] Secondly, the specific structure of the flow disturbing assembly 3 is disclosed. The flow disturbing assembly 3 includes flow disturbing ring strips 31 fixedly installed on the inner wall of the inflow passage 16. The flow disturbing ring strips 31 are provided in multiple numbers, and the multiple flow disturbing ring strips 31 are all installed obliquely. The multiple flow disturbing ring strips 31 and the inner wall of the inflow passage 16 form multiple interlayers 32, which can assist in intercepting impurities in the delivered liquid.

[0049] Further, referring to Figure 4 and combining Figure 5As shown, the plurality of turbulence ring strips 31 are evenly distributed in the initial flow channel 24, the converging flow channel 23 and the final flow channel 25 of the first valve pipe 11, which can play a turbulence effect and reduce the water flow impact force. During the water flow conveying process, the water flow flows in a relatively regular laminar state with high energy and directionality. The inclined turbulence ring strips 31 break this laminar state. When the water flow collides with the turbulence ring strips 31, the advancing direction of the water flow is forced to change. Due to the inclination angle of the turbulence ring strips 31, the water flow around the turbulence ring strips 31 forms flow regions with different speeds and directions, so that the overall energy of the water flow is reduced, which is manifested as a decrease in the water flow impact force.

[0050] In addition, the turbulence ring strips 31 are arranged in an inclined manner to form a plurality of interlayers 32 with openings facing the water flow direction. The impurities in the water flow move with the water flow and have a certain inertia. When the water flow carrying the impurities flows through the interlayers 32, the impurities continue to move forward and enter the interlayers 32 under the action of inertia due to the openings of the interlayers 32 facing the water flow direction. After entering the interlayers 32, the water flow speed in the interlayers 32 is relatively slow due to the change in the space structure inside the interlayers 32 and the flow characteristics of the water flow therein, and some local backflow areas are formed. Once the impurities enter, they are difficult to regain enough power to return to the mainstream and flow out with the water flow under the action of these local water flows. Therefore, part of the impurities are effectively intercepted in the interlayers 32, reducing the possibility of impurities impacting the surface of the ball 14 with the water flow.

[0051] With the passage of time, a certain amount of impurities will accumulate inside the first valve pipe 11. These impurities not only interfere with the normal conveying of the water flow, but also can be stuck in the holes or gaps of the ball 14, causing the ball 14 to rotate inflexibly, and even causing blockage. By periodically disassembling the first valve pipe 11 to discharge the impurities, the accumulated impurities can be removed in time to ensure the smoothness of the water flow conveying and effectively avoid the failure of the ball 14 due to impurity blockage, thereby improving the overall stability of the ball valve body 1.

[0052] In order to further improve the overall sealing performance of the inlet channel 16 and ensure the overall stability of the ball valve body 1, the first middle pipe 1101 is fixedly installed with an extension edge strip on the side close to the second middle pipe 1102. The second middle pipe 1102 is provided with an inner groove on the side in contact with the first middle pipe 1101, which is in contact with the surface of the extension edge strip. The contact surfaces of the first middle pipe 1101 and the second middle pipe 1102 are fixedly installed with clamping pads 43, which are made of elastic material.

[0053] In combination with Figure 9It can be seen that the first middle pipe 1101 is fixedly installed with an extension edge strip on one side close to the second middle pipe 1102, the second middle pipe 1102 is provided with an inner groove on the side close to the first middle pipe 1101, the extension edge strip is connected with the inner groove, the first middle pipe 1101 and the second middle pipe 1102 can be better constrained when connected, the relative displacement of the two in the horizontal and vertical directions is limited, and the connection stability is improved. When external force acts or water flow in the pipeline vibrates, the connection mode can ensure that the first middle pipe 1101 and the second middle pipe 1102 cannot be easily separated, and the structural integrity is maintained (it should be noted that the extension edge strip and the inner groove are not shown in the figure);

[0054] In addition, the clamping pad 43 is arranged between the first middle pipe 1101 and the second middle pipe 1102, and the clamping pad 43 is of elastic material. When the first middle pipe 1101 and the second middle pipe 1102 are pressed and adhered to each other, the clamping pad 43 will be elastically deformed to fill the small gap between the adhered surfaces of the two, so that the leakage of liquid from the gap is prevented, and the overall sealing performance of the inflow channel 16 is improved. The clamping pad 43 can be made of rubber material, such as natural rubber, nitrile rubber, ethylene propylene diene rubber, etc., which has good elasticity, wear resistance and tear resistance, and can adapt to a relatively harsh working environment.

[0055] Since the installation position of the flow dividing piece 22 needs to be ensured to be accurate and stable during the splicing process of the first middle pipe 1101 and the second middle pipe 1102, and in order to further enhance the connection stability between the first middle pipe 1101 and the second middle pipe 1102, the inner cavity of the first middle pipe 1101 is provided with a buckle groove 4 at the upper end, and the inner wall of the buckle groove 4 is adhered to the surface of the flow dividing piece 22.

[0056] The improvement lies in that: Figure 9 It can be seen that the buckle groove 4 is used for assisting in positioning the flow dividing piece 22 during the splicing of the first middle pipe 1101 and the second middle pipe 1102. During the splicing operation, the flow dividing piece 22 is embedded in the buckle groove 4, so that the position of the flow dividing piece 22 in the first middle pipe 1101 can be determined. Moreover, when water flows through the pipeline, if the flow dividing piece 22 is not stably installed, it is easy to be inclined under the impact of water flow. The buckle groove 4 is closely adhered to the flow dividing piece 22, can effectively support and constrain the flow dividing piece 22, greatly reduces the situation that the flow dividing piece 22 is inclined due to water flow impact, and ensures that the flow dividing piece 22 always plays a flow dividing function in the correct position;

[0057] At the same time, the buckle groove 4 can also combine the extension edge and the inner groove, further improving the clamping stability between the first middle pipe 1101 and the second middle pipe 1102. The clamping of the extension edge and the inner groove has enhanced the connection stability between the two pipes to a certain extent. The existence of the buckle groove 4 makes the connection between the first middle pipe 1101 and the flow divider 22 more closely. When the first middle pipe 1101 and the second middle pipe 1102 are spliced, the flow divider 22 also becomes part of the connection structure. The flow divider 22 is closely matched with the buckle groove 4. When the water flow impacts the pipeline, it can share the force with the extension edge and the inner groove, so that the connection between the two pipes is strengthened in multiple dimensions, thereby further improving the clamping stability between the first middle pipe 1101 and the second middle pipe 1102, and ensuring the reliability of the entire pipeline structure under complex water flow conditions.

[0058] Considering that the water flow can generate a large impact force when flowing through the flow divider 22, which can cause damage to the flow divider 22, therefore, an end angle 41 is provided in the middle of the side of the flow divider 22 close to the primary flow passage 24. The inner wall of the end angle 41 is a circular arc structure.

[0059] The improvement lies in that: Figure 4 and Figure 7 When the water flow flows from the primary flow passage 24 to the flow divider 22, the circular arc structure of the end angle 41 can guide the water flow to smoothly bypass the flow divider 22, so that the flow direction of the water flow gradually changes, rather than directly impacting the flow divider 22. This can reduce the impact force of the water flow concentrated on a point or a small area on the flow divider 22, thereby reducing the damage of the water flow impact to the flow divider 22, prolonging the service life of the flow divider 22, and ensuring the stability and reliability of the flow dividing function.

[0060] The inner wall of the end flow passage 25 is relatively thicker than the inner wall of the primary flow passage 24, for buffering the impact of the water flow.

[0061] The improvement lies in that: Figure 7 When the water flow flows in the pipeline, it will flow into the end flow passage 25 from the primary flow passage 24, and a confluence state will occur when it enters the end flow passage 25, the water flow speed will change, and the speed will relatively increase at the end flow passage 25, resulting in an increase in the impact force of the water flow on the inner wall of the pipeline. The thicker inner wall can withstand greater impact force, reducing the risk of pipeline damage caused by water flow impact. The thicker inner wall can provide a larger contact area and more material to absorb the energy of the water flow, protecting the safe and stable operation of the pipeline system.

[0062] In summary, the working principle of the present application is as follows: when installing the first valve pipe 11 of the ball valve body 1, first, the first middle pipe 1101 and the top of the second middle pipe 1102 are fitted and clamped to stabilize the structure of the middle valve pipe 111, then the sleeve pipe 112 is sleeved on the surface of the spliced first middle pipe 1101 and the second middle pipe 1102, the sleeve pipe 112 and the fixed pipe 113 are connected by flange, and a rubber sealing gasket is installed on the inner wall of the sleeve pipe 112 and the end of the middle valve pipe 111 to improve the sealing performance, the extended edge strip on the first middle pipe 1101 is clamped with the inner groove of the second middle pipe 1102, and the buckle groove 4 assists in positioning the flow divider 22 to improve the stability of the clamping of the two pipes;

[0063] When the ball valve body 1 is working, the liquid pressure in the pipeline acts on the pipeline wall, the sleeve pipe 112 and the middle valve pipe 111 are sleeved, the sleeve pipe 112 has strength and rigidity and can share the pressure borne by the middle valve pipe 111 to enhance the overall pressure resistance, the water flow flows from the initial flow channel 24 to the final flow channel 25, the water flow velocity at the final flow channel 25 is easy to improve, the inner wall of the final flow channel 25 is thicker than that of the initial flow channel 24, can bear greater impact force and absorb water flow energy, and the pipeline is protected;

[0064] In terms of water flow control, the edge ring 21 on the inner wall of the sleeve pipe 112 cooperates with the flow divider 22 on the inner wall of the second middle pipe 1102 to form two converging flow channels 23. When the water flow with strong impact force flows through, it is divided into two parts, the impact force is dispersed, and the damage to the ball 14 is reduced. The inner wall of the edge ring 21 near the inflow channel 16 is inclined, which can guide the water flow to enter the converging flow channel 23 in an orderly manner and improve the subsequent flow convergence effect. A plurality of turbulence ring strips 31 are distributed in the initial flow channel 24, the converging flow channel 23 and the final flow channel 25 to break the laminar flow of the water flow, form vortex and turbulent flow, and reduce the impact force of the water flow. The inclined interlayer 32 can intercept impurities and reduce the impact on the ball 14. In addition, as the ball valve is used, impurities will accumulate in the first valve pipe 11, which can be discharged by regularly disassembling the first valve pipe 11 to ensure smooth water flow and improve the overall operation stability of the ball valve body 1.

[0065] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A progressive high-pressure ball valve comprising a ball valve body (1) comprising a first valve pipe (11) and a second valve pipe (12), characterized in that: The first valve pipe (11) and the second valve pipe (12) are in butt joint, the butt joint end of the first valve pipe (11) and the second valve pipe (12) forms a middle flow channel (15) inside, the inside of the first valve pipe (11) forms an inlet flow channel (16), the inside of the second valve pipe (12) forms an outlet flow channel (17), the inlet flow channel (16), the middle flow channel (15) and the outlet flow channel (17) are communicated; The inside of the middle flow channel (15) is rotatably provided with a ball (14), the top of the ball (14) is connected with a control member (13), the other end of the control member (13) is installed on the surface of the ball valve body (1); The inside of the inlet flow channel (16) is provided with a flow contraction mechanism (2), the flow contraction mechanism (2) comprises a flow disturbing assembly (3), the flow contraction mechanism (2) can form a bifurcation inside the inlet flow channel (16), and the flow contraction mechanism (2) can form a progressive structure inside the inlet flow channel (16), the flow disturbing assembly (3) comprises a flow disturbing ring (31) fixedly installed on the inner wall of the inlet flow channel (16), the flow disturbing ring (31) can change the flow state and direction of the liquid in the inlet flow channel (16), when the liquid is transported through the inlet flow channel (16), the flow disturbing ring (31) interacts with the liquid in the inlet flow channel (16), so that a complex flow field structure is formed in the inlet flow channel (16), and the flow disturbing ring (31) can also assist in blocking impurities in the liquid; The first valve pipe (11) comprises a fixed pipe (113), one end of the fixed pipe (113) is connected with the second valve pipe (12), the other end of the fixed pipe (113) is connected with a middle valve pipe (111), the middle valve pipe (111) is formed by splicing a first middle pipe (1101) and a second middle pipe (1102), the second middle pipe (1102) is fixedly connected with the end of the fixed pipe (113) away from the second valve pipe (12), the surface of the middle valve pipe (111) is sleeved with a sleeve pipe (112), the surface of the middle valve pipe (111) is attached to the inner wall of the sleeve pipe (112), and the sleeve pipe (112) is movably connected with the fixed pipe (113); The flow contraction mechanism (2) comprises a side ring (21) fixedly installed on the inner wall of the sleeve pipe (112), the side ring (21) is inclined on the side close to the inlet flow channel (16), the inner wall of the second middle pipe (1102) is fixedly installed with a flow dividing member (22), and the flow dividing member (22) is vertically installed; Two flow contraction channels (23) are formed between the side ring (21) and the flow dividing member (22), the two flow contraction channels (23) are used for dividing the transported liquid, the two ends of the two flow contraction channels (23) are respectively an initial flow channel (24) and a final flow channel (25), the inside of the end of the inlet flow channel (16) close to the second valve pipe (12) is the final flow channel (25), the end of the inlet flow channel (16) away from the second valve pipe (12) is the initial flow channel (24), and the initial flow channel (24), the two flow contraction channels (23) and the final flow channel (25) are communicated.

2. The progressive high-pressure ball valve according to claim 1, characterized in that: The turbulence ring strips (31) are provided in plurality, the plurality of turbulence ring strips (31) are all inclined installation, the plurality of turbulence ring strips (31) and the inner wall of the inlet channel (16) form a plurality of interlayers (32), the interlayer (32) can assist the impurity in the conveying liquid to be intercepted.

3. The progressive high-pressure ball valve according to claim 1, characterized in that: The first middle pipe (1101) is fixedly installed with an extension edge strip on the side close to the second middle pipe (1102), the second middle pipe (1102) is provided with an inner groove on the side close to the first middle pipe (1101), the surface of the inner groove is close to the surface of the extension edge strip, the close surface of the first middle pipe (1101) and the second middle pipe (1102) is fixedly installed with a clamping pad (43), and the clamping pad (43) is made of elastic material.

4. The progressive high-pressure ball valve according to claim 1, characterized in that: The inner cavity of the first middle pipe (1101) is provided with a buckle groove (4) on the upper end, and the inner wall of the buckle groove (4) is close to the surface of the flow divider (22).

5. The progressive high-pressure ball valve according to claim 1, characterized in that: The flow divider (22) is provided with an end corner (41) on the middle of the side close to the initial flow channel (24), and the inner wall of the end corner (41) is a circular arc structure.

6. The progressive high-pressure ball valve according to claim 1, characterized in that: The inner wall of the final flow channel (25) is relatively thicker than the inner wall of the initial flow channel (24), and is used for buffering the impact of water flow.

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