Ball valve for mine filling

Abstract

The embodiment of the utility model discloses a ball valve for mine filling, relates to the technical field of valves, and aims to solve the problem of abnormal wear of the ball valve. The ball valve comprises a valve seat, a valve core and a plurality of sealing seats, the valve seat is provided with an inner cavity and a plurality of interfaces, and each interface is communicated with the inner cavity of the valve seat; the valve seat is further provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with an inner cavity of the valve seat. The valve element is arranged in an inner cavity of the valve seat and rotationally connected to the valve seat, the valve element is provided with a flow channel, and the flow channel is provided with a first flow guide opening and a second flow guide opening which communicate with each other. A first port is formed in the first end of the sealing seat, each connector is connected with the first end of one sealing seat, and the first port is used for being communicated with the first flow guide port or the second flow guide port; the valve element is provided with a plurality of preset rotating angles, when the valve element rotates to one preset rotating angle, the first through opening of one sealing seat is communicated with the first flow guide opening, and the first through opening of the other sealing seat is communicated with the second flow guide opening.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a ball valve for mine backfilling. Background Technology

[0002] Currently, in the production processes of industries such as metallurgy and mine backfilling, three-way ball valves are commonly used to achieve the requirements of diversion, merging and mixing of media such as slurry. The three-way ball valves commonly found on the market consist of a valve core and a valve seat with three flow channels. In terms of the connection method between the valve core and the three flow channels, the above three-way ball valves can be divided into T-type, L-type and Y-type.

[0003] There is a cavity between the valve seat and the valve core. During the state transition, the conveyed medium will enter. The conveyed medium often contains solid particles. As a result, the conveyed medium containing solid particles will remain in the cavity between the valve seat and the valve core. When the state transition occurs, it will enter between the valve core and the ball seal, causing wear on the surface of the valve core and the ball seal, resulting in seal failure. Furthermore, the solid particles may get stuck between the surfaces of the valve core and the ball seal, causing the valve core to jam and become unable to rotate, thus causing damage. Utility Model Content

[0004] In view of this, the present invention aims to provide a ball valve for mine filling, which can solve the problem of abnormal wear of the ball valve during the filling process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a ball valve for mine backfilling, including a valve seat with an inner cavity and multiple interfaces, each interface communicating with the inner cavity of the valve seat; the valve seat also has an inlet and an outlet, the inlet and outlet respectively communicating with the inner cavity of the valve seat; a valve core disposed in the inner cavity of the valve seat and rotatably connected to the valve seat, the valve core having a flow channel, the flow channel having a first guide port and a second guide port communicating with each other; multiple sealing seats, the first end of the sealing seat having a first port, each interface being connected to the first end of one of the sealing seats, the first port being used to communicate with the first guide port or the second guide port; the valve core having multiple preset rotation angles, when the valve core rotates to one of the preset rotation angles, the first port of one of the sealing seats is connected to the first guide port, and the first port of another sealing seat is connected to the second guide port.

[0007] Optionally, the sealing seat further includes a first sealing element and a pressure plate. The first end of the sealing seat has a groove located radially outside the first opening. The first sealing element is embedded in the groove. The pressure plate is connected to the first end of the sealing seat and abuts against the first sealing element. The first sealing element makes sealing contact with the sealing seat and the valve core, respectively.

[0008] Optionally, the first seal has a first contact surface and a second contact surface on one side of the valve core. The first contact surface is adapted to the shape of the valve core and can abut against the valve core, and the second contact surface abuts against the pressure plate.

[0009] Optionally, the ball valve further includes a rotating shaft and a support shaft. The valve seat has a first shaft hole and a second shaft hole on both sides, respectively. The valve core has a third shaft hole at a position corresponding to the first shaft hole and a fourth shaft hole at a position corresponding to the second shaft hole. The rotating shaft passes through the first shaft hole and is rotatably connected to the valve seat. One end of the rotating shaft extends into the third shaft hole and can drive the valve core to rotate. The support shaft passes through the second shaft hole and one end of the support shaft extends into the fourth shaft hole and is rotatably connected to the valve core.

[0010] Optionally, the inlet is connected to an inlet assembly, and the outlet is provided with an outlet assembly. The inlet assembly is used to inject flushing fluid into the inner cavity of the valve seat through the inlet, and the outlet assembly is used to discharge the flushing fluid from the inner cavity of the valve seat through the outlet.

[0011] Optionally, the first end of the sealing seat has a cylindrical structure, each of the cylindrical structures of the sealing seat passes through the corresponding interface, and a second sealing element is provided between the outer wall of the cylindrical structure of each sealing seat and the inner wall of the corresponding interface.

[0012] Optionally, a third seal is provided between the rotating shaft and the first shaft hole; and / or, a fourth seal is provided between the support shaft and the second shaft hole.

[0013] Optionally, the valve seat is provided with n interfaces, where n is a natural number greater than or equal to 3, the angle between the axis of the first guide port and the axis of the second guide port is 360 / n degrees, and the inner wall contour of the flow channel smoothly transitions from the first guide port to the second guide port.

[0014] Optionally, the second end of the sealing seat is provided with a second port, and the first port is connected to the second port.

[0015] Optionally, the sealing seat is further provided with an annular structure, and the interface is further provided with a flange, wherein the annular structure of each sealing seat is connected to the flange of the corresponding interface.

[0016] The ball valve for mine backfilling provided in this embodiment includes a valve seat, a valve core, and multiple sealing seats. The valve seat has an inner cavity and multiple interfaces, each interface communicating with the inner cavity of the valve seat. The valve seat also has an inlet and an outlet, which are respectively connected to the inner cavity of the valve seat. The valve core is disposed in the inner cavity of the valve seat and rotatably connected to the valve seat. The valve core has a flow channel with a first guide port and a second guide port communicating with each other. The first end of the sealing seat has a first port, and each interface is connected to the first end of a sealing seat. The first port is used to connect with the first end of the sealing seat. The valve core has multiple preset rotation angles. When the valve core rotates to one of the preset rotation angles, the first port of one of the sealing seats is connected to the first flow port, and the first port of the other sealing seat is connected to the second flow port. The ball valve can be flushed with flushing fluid at the inlet. The flushing fluid flushes the conveying medium in the cavity between the valve seat and the valve core out of the outlet, thereby protecting the surface of the ball valve core and the ball seal from abnormal wear, avoiding premature damage to the ball valve core and the ball seal, and thus extending the service life of the ball valve core and the ball seal. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the overall structure of a ball valve for mine filling according to one embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of another state of the overall structure of the ball valve for mine filling according to one embodiment of the present invention.

[0020] Explanation of key figure labels:

[0021] 10-Valve seat; 101-Inner cavity; 102-Inlet; 103-Outlet; 104-First shaft hole; 105-Second shaft hole; 106-Third shaft hole; 107-Fourth shaft hole; 11-Valve core; 12-Flow channel; 121-First guide port; 122-Second guide port; 13-Sealing seat; 1311-First through port; 1312-Second through port; 132-First seal; 133-Pressure plate; 134-Groove; 135-First contact surface; 136-Second contact surface; 137-Second seal; 138-Third seal; 139-Fourth seal; 14-Rotating shaft; 15-Support shaft; 16-Inlet assembly; 17-Outlet assembly. Detailed Implementation

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] It should be understood that the described embodiments are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] There is a cavity between the valve seat and the valve core of a ball valve. During the state transition, the conveyed medium can enter, and the conveyed medium often contains solid particles. As a result, the conveyed medium containing solid particles remains in the cavity between the valve seat and the valve core. When the state transition occurs, it enters between the valve core and the ball seal, causing wear on the surfaces of the valve core and the ball seal, leading to seal failure. Furthermore, solid particles can get stuck between the surfaces of the valve core and the ball seal, causing the valve core to jam and become unable to rotate, thus causing damage. To solve the above problems, this utility model provides a ball valve for mine filling, which can solve the problem of abnormal wear of the ball valve during the filling process.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See Figure 1This embodiment provides a ball valve for mine backfilling, comprising a valve seat 10, a valve core 11, and multiple sealing seats 13. The valve seat has an inner cavity 101 and multiple interfaces, each interface communicating with the inner cavity of the valve seat 10. The valve seat 10 also has an inlet 102 and an outlet 103, which are respectively connected to the inner cavity 101 of the valve seat 10. The valve core 11 is disposed in the inner cavity 101 of the valve seat 10 and rotatably connected to the valve seat 10. The valve core 10 has a flow channel 12. The flow channel 12 is provided with a first guide port 121 and a second guide port 122 that are connected to each other; the first end of the sealing seat 13 is provided with a first port 1311, and each port is connected to the first end of a sealing seat. The first port 1311 is used to connect with the first guide port 121 or the second guide port 122; the valve core 11 has multiple preset rotation angles. When the valve core 11 rotates to one of the preset rotation angles, the first port of one sealing seat is connected to the first guide port, and the first port of the other sealing seat is connected to the second guide port.

[0027] The valve seat 10 has an internal cavity 101 and interfaces, each of which communicates with the internal cavity 101. The surface of the valve seat also has an inlet 102 and an outlet 103, both of which communicate with the internal cavity of the valve seat 10. The valve core 11 is disposed within the internal cavity 101 of the valve seat 10 and rotatably connected to it. The valve core 11 has a flow channel 12, which has a first guide port 121 and a second guide port 122 communicating with it. The first end of the sealing seat 13... A first port 1311 is provided, and each port is connected to the first end of a sealing seat that contacts it. The first port 1311 is connected to the first guide port 121 or the second guide port 122, and liquid can flow through the port and the guide port. The valve core 11 is provided with a preset rotation angle. When the valve core 11 rotates to one of the preset rotation angles, the liquid flow rate is adjusted. The first port of one sealing seat is connected to the first guide port 121, and the first port of the other sealing seat is connected to the second guide port 122.

[0028] The valve seat is connected to the valve core, which drives the valve core to rotate and realize the switching of the sealing seat port. The positions of the liquid inlet and the liquid outlet can be designed symmetrically about the valve core. The setting of the flow channel and the guide port reduces the resistance of liquid flow and makes the flow smooth. In addition, the setting of multiple preset turning angles can adjust the liquid flow rate to meet different usage needs.

[0029] The ball valve for mine backfilling provided in this embodiment has a valve seat, a valve core, and multiple sealing seats. The valve seat has an inner cavity and multiple interfaces, each of which communicates with the inner cavity of the valve seat. The valve seat 10 also has an inlet 102 and an outlet 103, which are respectively connected to the inner cavity of the valve seat 10. The valve core 11 is disposed in the inner cavity of the valve seat 10 and rotatably connected to the valve seat 10. The valve core 11 has a flow channel, which has a first guide port 121 and a second guide port 122 that are connected to each other. The first end of the sealing seat 13 has a first port 1311, and each interface is connected to the first end of a sealing seat 13. 1. It is used to connect with the first guide port 121 or the second guide port 122; the valve core 11 has multiple preset rotation angles. When the valve core 11 rotates to one of the preset rotation angles, the first port 1311 of one of the sealing seats 13 is connected to the first guide port 121, and the first port 1311 of the other sealing seat 13 is connected to the second guide port 122. The ball valve can be connected to flushing fluid at the inlet. The flushing fluid flushes the conveying medium in the cavity between the valve seat and the valve core from the outlet, thereby protecting the surface of the ball valve core and the ball seal from abnormal wear, avoiding premature damage to the ball valve core and the ball seal, and thus extending the service life of the ball valve core and the ball seal.

[0030] See Figure 1 In some embodiments, the sealing seat 13 is further provided with a first sealing element 132 and a pressure plate 133. The first end of the sealing seat 13 is provided with a groove 134, which is located radially outside the first opening. The first sealing element 132 is embedded in the groove 134. The pressure plate 133 is connected to the first end of the sealing seat 13 and abuts against the first sealing element 132. The first sealing element 132 is in sealing contact with the sealing seat 13 and the valve core 11 respectively. In this way, the sealing element is embedded in the groove, and the pressure plate abuts against one side of the sealing element to prevent external liquid or solid particles from entering the valve core through the gap in the sealing seat, thus ensuring the sealing performance and reliability of the valve core.

[0031] The first seal can be made of rubber material, and the rubber material that meets the usage requirements can be selected according to the specific medium and environment of use, including polyurethane rubber. Among them, polyurethane material has the characteristics of being stable and not easy to age.

[0032] See Figure 1In some embodiments, the first sealing member 132 is provided with a first contact surface 135 and a second contact surface 136 on the side facing the valve core 11. The first contact surface 135 is adapted to the shape of the valve core 11 and can abut against the valve core 11, and the second contact surface 136 abuts against the pressure plate 133. In this way, the first contact surface and the valve core 11 can form a reliable pressure contact through the preset pressure of the pressure plate 133 on the second contact surface, thereby improving the sealing effect and helping to confine the valve core within the abutting area and prevent the valve core from shaking.

[0033] See Figure 1 In some embodiments, the ball valve further includes a rotating shaft 14 and a support shaft 15. A first shaft hole 104 and a second shaft hole 105 are respectively provided on both sides of the valve seat 10. The valve core 11 has a third shaft hole 106 at a position corresponding to the first shaft hole 104 and a fourth shaft hole 107 at a position corresponding to the second shaft hole 105. The rotating shaft 14 passes through the first shaft hole 104 and is rotatably connected to the valve seat 10. One end of the rotating shaft extends into the third shaft hole 106 and can drive the valve core to rotate. The support shaft passes through the second shaft hole, and one end of the support shaft 15 extends into the fourth shaft hole 107 and is rotatably connected to the valve core 11. This facilitates the assembly of the ball valve and the machining of the shaft components, improves the operational stability of the equipment, enhances the stability of the rotating shaft and support shaft operation, and reduces friction and wear. Furthermore, the design of providing shaft holes at corresponding positions ensures high concentricity, reducing vibration and noise caused by misalignment.

[0034] See Figure 1 In some embodiments, the inlet 102 is connected to an inlet assembly 16, and the outlet 103 is provided with an outlet assembly 17. The inlet assembly 16 is used to inject flushing fluid into the inner cavity of the valve seat 10 through the inlet 102, and the outlet assembly 17 is used to discharge the flushing fluid from the inner cavity of the valve seat 10 through the outlet 103. In this way, when the ball valve is cleaned with flushing fluid, the flushing fluid flows into the interior through the inlet assembly, flows down to the outlet assembly under water pressure, and flows out of the ball valve through the outlet assembly, thereby ensuring the cleaning effect while ensuring that there is no liquid residue inside the ball valve.

[0035] See Figure 1 In some embodiments, the first end of the sealing seat 13 has a cylindrical structure, the cylindrical structure of each sealing seat passes through the corresponding interface, and a second sealing element 137 is provided between the outer wall of the cylindrical structure of each sealing seat and the inner wall of the corresponding interface; wherein, the second sealing element is used to seal the inner cavity of the valve seat to prevent the conveying medium from leaking out.

[0036] See Figure 1In some embodiments, a third seal 138 is provided between the rotating shaft 14 and the first shaft hole 104; and / or, a fourth seal 139 is provided between the support shaft 15 and the second shaft hole 105; thus, the lubricant present inside the rotating shaft and the support shaft will not leak, while preventing external contaminants from entering.

[0037] See Figure 1 In some embodiments, the valve seat 10 is provided with n interfaces, where n is a natural number greater than or equal to 3, the angle between the axis of the first guide port and the axis of the second guide port is 360 / n degrees, and the inner wall profile of the flow channel smoothly transitions from the first guide port to the second guide port.

[0038] For example Figure 2 As shown, when n=3, the angle between the axis of the first guide port and the axis of the second guide port is 120 degrees.

[0039] See Figure 1 , Figure 2 In some embodiments, the second end of the sealing seat 13 is provided with a second port 1312, and the first port 1311 is connected to the second port 1312. For example, the second port can be configured with a quick-connect structure to facilitate connection with other pipe fittings and improve the ease of use of the ball valve. The first port and the second port form a complete communication path. When conveying is required, the first port and the second port are respectively connected to the first guide port and the second guide port for conveying.

[0040] In some cases, the sealing seat also has an annular structure, and the interface also has a flange. The annular structure of each sealing seat is connected to the flange of the corresponding interface. In this way, the flange connection facilitates disassembly and maintenance, and a flange gasket can be installed under the flange to further ensure the sealing of the connection and prevent liquid leakage at the connection between the sealing seat and the valve seat.

[0041] It should be noted that in this document, the terms "upper," "lower," etc., indicating orientation or positional relationship, are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be direct connections or indirect connections through an intermediate medium. Relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. This will be understood by those skilled in the art through the specific circumstances.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A ball valve for mine backfilling, characterized in that, include: The valve seat has an inner cavity and is provided with multiple interfaces, each of which is connected to the inner cavity of the valve seat; the valve seat is also provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet being connected to the inner cavity of the valve seat respectively. A valve core is disposed in the inner cavity of the valve seat and rotatably connected to the valve seat. The valve core is provided with a flow channel, and the flow channel is provided with a first flow guide port and a second flow guide port that are connected to each other. Multiple sealing seats, each sealing seat having a first port at its first end, each of the ports being connected to the first end of a sealing seat, the first port being used to communicate with the first flow guide or the second flow guide; The valve core has multiple preset rotation angles. When the valve core rotates to one of the preset rotation angles, the first port of one of the sealing seats is connected to the first flow guide port, and the first port of the other sealing seat is connected to the second flow guide port.

2. The ball valve for mine backfilling according to claim 1, characterized in that, The sealing seat is further provided with a first sealing element and a pressure plate. The first end of the sealing seat is provided with a groove, which is located radially outside the first opening. The first sealing element is embedded in the groove. The pressure plate is connected to the first end of the sealing seat and abuts against the first sealing element. The first sealing element is in sealing contact with the sealing seat and the valve core, respectively.

3. The ball valve for mine backfilling according to claim 2, characterized in that, The first sealing element has a first contact surface and a second contact surface on one side facing the valve core. The first contact surface is adapted to the shape of the valve core and can abut against the valve core, and the second contact surface abuts against the pressure plate.

4. The ball valve for mine backfilling according to claim 1, characterized in that, The ball valve further includes a rotating shaft and a support shaft. The valve seat has a first shaft hole and a second shaft hole on both sides, respectively. The valve core has a third shaft hole at a position corresponding to the first shaft hole and a fourth shaft hole at a position corresponding to the second shaft hole. The rotating shaft passes through the first shaft hole and is rotatably connected to the valve seat. One end of the rotating shaft extends into the third shaft hole and can drive the valve core to rotate. The support shaft passes through the second shaft hole and one end of the support shaft extends into the fourth shaft hole and is rotatably connected to the valve core.

5. The ball valve for mine backfilling according to claim 1, characterized in that, The inlet is connected to an inlet assembly, and the outlet is equipped with an outlet assembly. The inlet assembly is used to inject flushing fluid into the inner cavity of the valve seat through the inlet, and the outlet assembly is used to discharge the flushing fluid from the inner cavity of the valve seat through the outlet.

6. The ball valve for mine backfilling according to claim 1, characterized in that, The first end of the sealing seat has a cylindrical structure, and the cylindrical structure of each sealing seat passes through the corresponding interface, and a second sealing element is provided between the outer wall of the cylindrical structure of each sealing seat and the inner wall of the corresponding interface.

7. The ball valve for mine backfilling according to claim 4, characterized in that, A third seal is provided between the rotating shaft and the first shaft hole; and / or, a fourth seal is provided between the support shaft and the second shaft hole.

8. The ball valve for mine backfilling according to claim 1, characterized in that, The valve seat is provided with n interfaces, where n is a natural number greater than or equal to 3. The angle between the axis of the first guide port and the axis of the second guide port is 360 / n degrees. The inner wall contour of the flow channel smoothly transitions from the first guide port to the second guide port.

9. The ball valve for mine backfilling according to claim 1, characterized in that, The second end of the sealing seat is provided with a second port, and the first port is connected to the second port.

10. The ball valve for mine backfilling according to claim 1, characterized in that, The sealing seat is also provided with an annular structure, and the interface is also provided with a flange. The annular structure of each sealing seat is connected to the flange of the corresponding interface.

Images