Pollution discharging and filtering ball valve

Abstract

The utility model discloses a pollution discharge filtering ball valve, which comprises a valve body, a valve rod and a handle, a valve ball is arranged in the valve body, the valve ball is connected with the handle through the valve rod, a valve ball channel is arranged in the valve ball, the valve rod is driven by twisting the handle, the valve ball is further driven to twist, the valve ball channel is controlled to rotate, and the valve body is opened and closed; the valve body is provided with a first branch pipe, a cylindrical filter screen is arranged in the first branch pipe, a blocking piece is formed in the valve body, and the blocking piece is connected with the cylindrical filter screen. Compared with a plane or filter plate structure, the cylindrical filter screen has a larger surface area and can more efficiently intercept solid impurities or particles in fluid. Due to the design of the cylindrical filter screen, the filtering effect is remarkably improved, particularly, the filter screen has excellent performance in the aspect of intercepting small-particle impurities, it is ensured that fluid flows smoothly in a pipeline, and damage to equipment and the pipeline caused by the impurities is avoided. Due to the larger filtering area and the higher filtering precision, impurity accumulation is reduced, and the stability and the safety of the system are improved.

Description

Technical Field

[0001] This utility model belongs to the field of valves, and specifically relates to a sewage filter ball valve. Background Technology

[0002] A drain filter ball valve is a valve device that combines the functions of a ball valve and a filter. It is mainly used in pipeline systems. By installing a filter screen inside or outside the ball valve, it can effectively intercept and remove solid impurities or deposits in the pipeline while maintaining normal flow. Drain filter ball valves are commonly found in industrial, urban water supply, sewage treatment, chemical, and energy fields for the control and filtration of fluid pipelines.

[0003] The main function of a drain filter ball valve is to filter solid impurities in fluids and prevent damage to equipment while controlling fluid flow. It offers the following advantages: equipped with a filter screen or filter device, it effectively removes impurities from fluids, ensuring the cleanliness and safe operation of pipelines and equipment. When the filter screen or filter device accumulates excessive impurities, the valve can easily drain the fluid, preventing system malfunctions caused by blockage. Due to its special design, the ball valve provides excellent sealing performance, preventing liquid or gas leakage. Drain filter ball valves are generally compact, occupy little space, and are suitable for various installation environments. The valve can be opened and closed manually or automatically, making operation simple and maintenance convenient.

[0004] Although existing sewage filter ball valves have certain application advantages, they also have some disadvantages: the design of existing sewage filter ball valves often has limitations, and the filtration accuracy is difficult to meet the requirements of certain specific working conditions, which may result in the failure to effectively remove smaller particulate impurities.

[0005] Currently, Chinese patent document CN 207634734 U discloses a drain valve with a flexible filter ball joint, including a valve body with an inlet at one end and an outlet at the other end. The valve body contains a valve ball and a valve stem. A filter branch pipe, inclined and positioned between the valve ball and the inlet, is located on the side wall of the valve body. A filter element and a drain valve are mounted on the filter branch pipe. A gauge interface, positioned between the filter branch pipe and the inlet, is also located on the side wall of the valve body. A plug is mounted on the gauge interface, and a sealing gasket is placed between the gauge interface and the plug. An annular groove is provided on the valve stem, containing a sealing ring that abuts against the valve body. A sealing element that abuts against the valve body and a pressure cap for tightening the sealing element are also fitted onto the valve stem. However, this design uses a filter plate as the filtration structure, resulting in low filtration efficiency. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model provides a sewage discharge filter ball valve, which improves filtration efficiency by employing a cylindrical filter screen.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A sewage discharge filter ball valve includes a valve body, a valve stem, and a handle. A valve ball is disposed inside the valve body, and the valve ball and the handle are connected by the valve stem. A valve ball channel is formed inside the valve ball. By turning the handle, the valve stem is driven, which in turn drives the valve ball to rotate, controlling the rotation of the valve ball channel to realize the opening and closing of the valve body. The valve body is provided with a first branch pipe, and a cylindrical filter screen is disposed inside the first branch pipe. A plug is formed inside the valve body, and the plug is connected to the cylindrical filter screen.

[0009] By adopting the above technical solutions, the cylindrical filter screen has a larger surface area compared to traditional flat or filter plate structures, enabling it to more efficiently intercept solid impurities or particles in the fluid. The cylindrical filter screen design effectively improves filtration accuracy, especially significantly improving the filtration effect for smaller particulate impurities, thus ensuring smoother fluid flow in pipelines and preventing damage to pipelines and equipment caused by impurities. Because the cylindrical filter screen can intercept more impurities, it reduces clogging problems caused by the accumulation of solid impurities during valve system operation. This makes the pipeline system more stable, reduces the risk of system failures or equipment damage due to impurity accumulation, and improves the overall system safety. Compared to traditional filter plate designs, the cylindrical filter screen structure is easier to disassemble, clean, and replace. The compact and easy-to-clean structure of the filter screen not only improves the maintenance convenience of the drain filter ball valve but also reduces the frequency of component replacement due to filter screen damage, thereby reducing maintenance costs and equipment downtime. The connection design between the plug plate in the valve body and the cylindrical filter screen ensures good sealing, preventing fluid leakage when passing through the filter screen. The effective filtration capacity of the cylindrical filter screen greatly reduces the chance of impurities entering the equipment, preventing impurities from causing wear or damage to other critical components.

[0010] In a further configuration, the first branch pipe is equipped with a drain plug, and the first branch pipe is detachably connected to the drain plug.

[0011] By adopting the above technical solution and using a detachable drain plug, when excessive impurities accumulate on the filter screen, operators can quickly drain the filter by simply removing the drain plug. This avoids complex maintenance issues caused by fixed structures that cannot be disassembled, improving the operability and maintainability of the equipment. Due to the flexibility of the plug's connection to the branch pipe, users can quickly disassemble and clean the inside of the filter or replace the filter screen, reducing the degree of disassembly required for draining, thereby reducing equipment downtime and shortening maintenance cycles. The detachable drain plug design ensures high efficiency during draining. Users can quickly remove accumulated dirt or impurities, preventing fluid flow obstruction due to blockage, thus ensuring the continuous and efficient operation of the valve. In cases where the fluid contains a large amount of impurities or particles, equipment failure caused by filter clogging can be avoided.

[0012] In a further configuration, the drain plug includes a connector, a magnet, and a magnet plug cap. The connector is connected to the first branch pipe, and the connector forms a magnet groove. The magnet is located in the magnet groove, and the magnet plug cap is detachably connected to the connector.

[0013] By adopting the above technical solution, magnets can effectively adsorb magnetic particulate impurities in pipelines, especially ferromagnetic materials (such as iron filings and oxides), improving the efficiency of the sewage system. This allows for better removal of impurities during the sewage discharge process, preventing these impurities from clogging the filter screen or causing wear and damage to other equipment. By adsorbing magnetic impurities, magnets reduce the accumulation of these particles on the filter screen, thereby improving the overall effectiveness of the filtration system. Magnetic adsorption allows the filter screen to maintain cleanliness for a longer period, avoiding a decrease in filtration accuracy due to impurity accumulation and ensuring the stability and efficiency of the filtration system during long-term operation. Magnets effectively remove magnetic impurities from pipelines, preventing these impurities from accumulating on filters, pipelines, and other critical components, reducing the risk of wear and clogging. By reducing the damage of impurities to the internal components of the equipment, the service life of valves, pipelines, and filters is extended, reducing the frequency of maintenance and component replacement.

[0014] Further, the drain plugging component includes a drain plug cap, and a gasket is provided between the drain plug cap and the first branch pipe.

[0015] By adopting the above technical solution, placing a gasket between the drain plug and the first branch pipe can effectively improve the sealing effect. As a sealing element, the gasket can fill tiny gaps in the connection, preventing fluid leakage. Under high pressure or high flow rate conditions, the gasket can maintain stable sealing performance, ensuring no fluid leakage occurs during the draining process, thereby improving the safety and reliability of the equipment. As a sealing component, the gasket not only improves the sealing performance but also enhances the stability of the connection between the drain plug and the first branch pipe. The gasket can effectively disperse external pressure, reduce mechanical stress caused by thermal expansion or pressure changes, and reduce wear or deformation of the connection, thereby ensuring long-term stable operation of the drain plug. The gasket simplifies the installation and removal of the drain plug. The flexibility and durability of the gasket make it easier to restore the original sealing performance without frequent replacement of the entire connection component. When maintenance or cleaning is required, the user only needs to replace the gasket, without disassembling and replacing the entire plug assembly, thus reducing maintenance costs and time.

[0016] In a further configuration, the valve body is provided with a second branch pipe, and the second branch pipe is provided with a branch pipe plug cap, and the second branch pipe and the branch pipe plug cap are detachably connected.

[0017] In a further configuration, a valve seat is provided inside the valve body, and the valve ball is located on the valve seat.

[0018] By adopting the above technical solution, the sealing effect between the valve ball and the valve body can be effectively improved by setting a valve seat. The valve seat provides stable support for the valve ball, preventing it from shifting or getting stuck during operation. The fit between the valve ball and the valve seat ensures that the valve ball is always in the correct position during opening and closing, thereby maintaining the stability of fluid flow. The valve seat design also reduces wear on the valve ball, extending the service life of both the valve ball and the valve seat.

[0019] As a further improvement, a sealing ring is provided between the valve seat and the valve ball.

[0020] By adopting the above technical solution, the sealing ring is located directly between the valve seat and the valve ball, preventing fluid leakage through the gap between the valve body and the valve ball. The sealing ring not only provides a good sealing effect but also reduces direct contact between the valve ball and the valve seat, thus reducing wear. The materials of the valve ball and valve seat may wear down over long-term operation; the cushioning effect of the sealing ring effectively reduces this friction, extending the service life of the valve ball and valve seat, and reducing maintenance frequency and costs. Using a sealing ring makes the contact between the valve ball and valve seat more uniform, reducing frictional resistance caused by deviations or asymmetrical pressure during operation. This not only makes the valve opening and closing smoother but also improves operational stability. Operators no longer need to worry about valve jamming, thereby improving the valve's operating experience and work efficiency.

[0021] In a further configuration, the handle forms a limiting part, and the valve stem is provided with a limiting block, which cooperates with the limiting part.

[0022] By adopting the above technical solutions, the limiting part and limiting block can restrict the rotation range of the handle and valve stem, making the opening and closing angles of the valve more precise. This prevents over-rotation of the handle, thus avoiding excessive opening or closing of the valve ball, ensuring the valve remains in its intended working state during use and achieving precise flow regulation. The design of the limiting block cooperating with the limiting part prevents damage or jamming of the valve stem and handle due to excessive operation. The valve's mechanical components, such as the valve stem and handle, may be affected by excessive rotation or strong operation during long-term use. By setting the limiting function, these components can be prevented from wearing, breaking, or deforming due to excessive torque, thereby extending the valve's service life. The limiting part and limiting block effectively prevent malfunctions caused by misoperation or over-operation. During valve opening and closing, the rotation angle of the handle is limited, avoiding possible over-opening or over-closing, reducing the risk of production stoppages, system leaks, or other safety hazards caused by valve damage, and enhancing the operational stability of the valve.

[0023] Furthermore, self-locking sealing bolts are fitted at both ends of the valve body, and beveled gaskets are fitted on the outside of the self-locking sealing bolts.

[0024] By adopting the above technical solution and setting self-locking sealing bolts and beveled gaskets, an effective sealing structure is formed at both ends of the valve body. When leakage occurs at the valve joint due to operator error (such as forgetting to wrap Teflon tape or using insufficient Teflon tape), tightening the self-locking sealing bolts and then pressing the beveled gaskets can immediately improve the sealing performance of the joint, quickly plug the leakage source, and thus avoid the impact of fluid leakage on the system.

[0025] In summary, the present invention has the following beneficial effects:

[0026] 1. This utility model employs a cylindrical filter screen, which, compared to traditional flat or filter plate structures, has a larger surface area, enabling more efficient interception of solid impurities or particles in the fluid. The cylindrical filter screen design significantly improves the filtration effect, especially in intercepting smaller particulate impurities, ensuring smooth fluid flow in the pipeline and preventing impurities from damaging equipment and pipelines. The larger filtration area and higher filtration precision reduce impurity accumulation, improving system stability and safety.

[0027] 2. This utility model features a detachable drain plug, allowing users to quickly perform draining operations. When excessive impurities accumulate on the filter screen, operators simply need to disassemble the drain plug to easily clean the inside of the filter, reducing equipment disassembly and downtime, and significantly improving the operability and maintainability of the equipment. The detachable design of the drain plug makes the draining process more efficient, reducing equipment malfunctions caused by impurities clogging and increasing the equipment's uptime.

[0028] 3. The valve seat and sealing ring in this invention ensure a good seal between the valve ball and the valve body, preventing fluid leakage. Simultaneously, the limiting part and limiting block restrict the rotation range of the handle and valve stem, preventing excessive rotation and ensuring more precise opening and closing angles of the valve, reducing the risk of wear and damage caused by excessive operation. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of Example 2;

[0030] Figure 2 This is a cross-sectional view of Example 2;

[0031] Figure 3 This is a schematic diagram of a ball valve.

[0032] Figure 4 This is a structural schematic diagram of Example 1;

[0033] Figure 5 This is a cross-sectional view of Example 1;

[0034] Figure 6This is a schematic diagram of the structure of Example 1.

[0035] Attached reference numerals: 1. Valve body; 1-1. Plug; 1-2. Valve seat; 1-3. Sealing ring;

[0036] 2. Valve stem; 2-1. Limit block;

[0037] 3. Handle; 3-1. Limiting part;

[0038] 4. Valve ball; 4-1. Valve ball passage;

[0039] 5. First branch pipe; 5-1. Cylindrical filter screen;

[0040] 6. Drain plug; 6-1. Connector; 6-2. Magnet; 6-3. Magnet plug cap; 6-4. Magnet groove; 6-5. Drain plug cap; 6-6. Gasket;

[0041] 7. Second branch pipe; 7-1. Branch pipe plug cap;

[0042] 8. Self-locking sealing bolts; 9. Angled washers. Detailed Implementation

[0043] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0044] like Figure 3-6 As shown, the sewage filter ball valve of Embodiment 1 includes a valve body 1, a valve stem 2, and a handle 3. A valve ball 4 is installed inside the valve body 1. The valve ball 4 and the handle 3 are connected by the valve stem 2. A valve ball channel 4-1 is opened inside the valve ball 4. By turning the handle 3, the valve stem 2 is driven, which in turn drives the valve ball 4 to rotate, controlling the rotation of the valve ball channel 4-1 to realize the opening and closing of the valve body 1. A first branch pipe 5 is provided in the valve body 1. A cylindrical filter screen 5-1 is installed in the first branch pipe 5. A plug 1-1 is formed inside the valve body 1 and is connected to the cylindrical filter screen 5-1. The first branch pipe 5 and the second branch pipe 7 are connected to the valve body 1.

[0045] The first branch pipe 5 is equipped with a drain plug 6, and the first branch pipe 5 is detachably connected to the drain plug 6. The drain plug 6 includes a connector 6-1, a magnet 6-2, and a magnet cap 6-3. The connector 6-1 is connected to the first branch pipe 5 and forms a magnet groove 6-4. The magnet 6-2 is located in the magnet groove 6-4, and the magnet cap 6-3 is detachably connected to the connector 6-1.

[0046] The valve body 1 is provided with a second branch pipe 7, and the second branch pipe 7 is provided with a branch pipe plug 7-1. The second branch pipe 7 and the branch pipe plug 7-1 are detachably connected.

[0047] A valve seat 1-2 is installed inside the valve body 1, and a valve ball 4 is located on the valve seat 1-2. A sealing ring 1-3 is installed between the valve seat 1-2 and the valve ball 4.

[0048] The handle 3 forms a limiting part 3-1, and the valve stem 2 is provided with a limiting block 2-1, which cooperates with the limiting part 3-1.

[0049] Self-locking sealing bolts 8 are fitted at both ends of the valve body 1, and beveled gaskets 9 are fitted on the outside of the self-locking sealing bolts 8.

[0050] A valve ball 4 is housed inside the valve body 1 and is connected to a handle 3 via a valve stem 2. The valve ball contains a valve ball passage 4-1, which controls the flow of fluid within the valve body. When the operator turns the handle 3, the handle rotates the valve stem 2. This rotation further twists the valve ball 4, changing the direction of the valve ball passage 4-1. Through the rotation of the valve ball, the valve ball passage 4-1 can be opened or closed, controlling the flow of fluid within the valve body 1 and thus completing the valve's on / off operation.

[0051] A first branch pipe 5 is installed inside the valve body 1, and a cylindrical filter screen 5-1 is placed inside the first branch pipe. This filter screen is used to filter the fluid flowing through the valve body and remove solid impurities from the fluid. A plug plate 1-1 is provided inside the valve body, and the plug plate is connected to the cylindrical filter screen 5-1. The function of the plug plate is to prevent unwanted substances from entering the drain channel and to protect the filter screen. A drain plug 6 is installed on the first branch pipe 5, and the drain plug 6 is detachably connected to the first branch pipe. The drain plug includes a connector 6-1, a magnet 6-2, and a magnet cap 6-3. The connector 6-1 is connected to the first branch pipe 5 to ensure the stable installation of the drain plug. The magnet 6-2 is located in the magnet groove 6-4 inside the connector, and the magnet helps to fix the drain plug. The magnet cap 6-3 is detachably connected to the connector 6-2, which facilitates the removal and cleaning of the drain plug. When draining is required, the drain plug 6 can be removed to discharge the impurities accumulated on the filter screen 5-1. The easy disassembly of the drain plug makes operation simple and prevents pollutant leakage.

[0052] The valve body 1 is also equipped with a second branch pipe 7 and a branch pipe plug 7-1. The second branch pipe 7 can also be detachably connected to the branch pipe plug 7-1, so that the sewage discharge and other functions of the valve body 1 can be operated flexibly, and it is convenient for cleaning or maintenance.

[0053] A valve seat 1-2 is installed inside the valve body 1, and a valve ball 4 is installed inside the valve seat 1-2. A sealing ring 1-3 is provided between the valve seat 1-2 and the valve ball 4 to ensure that the valve ball 4 can seal tightly when rotating to prevent leakage.

[0054] Both ends of the valve body 1 are fitted with self-locking sealing bolts 8, and beveled gaskets 9 are fitted on the outside of the bolts. The valve body 1 can maintain its sealing performance even under high pressure and prevent the bolts from loosening, thus ensuring the sealing effect at both ends of the valve body 1.

[0055] The handle 3 is provided with a limiting part 3-1, and the valve stem 2 is provided with a limiting block 2-1. The two work together to limit the movement, prevent the valve ball 4 from rotating excessively, and ensure that the opening and closing action of the valve body 1 does not exceed the predetermined range.

[0056] The operator rotates the valve stem 2 by turning the handle 3, which in turn rotates the valve ball 4. The rotation of the valve ball 4 controls the opening and closing of the valve ball passage 4-1, thereby controlling the flow of fluid. The cylindrical filter screen 5-1 inside the valve body 1 filters impurities in the fluid, keeping it clean. When impurities accumulate in the filter screen or inside the valve body 1, the drain plug 6 is removed for drainage, and impurities are attracted by a magnet. The self-locking sealing bolt 8 and the beveled gasket 9 ensure the valve body 1 is sealed, preventing liquid leakage.

[0057] like Figure 1-2 As shown, in Embodiment 2, the difference from Embodiment 1 is that the drain plug 6 includes a drain plug cap 6-5, and a gasket 6-6 is provided between the drain plug cap 6-5 and the first branch pipe 5.

[0058] A gasket 6-6 is added between the drain plug cap 6-5 and the first branch pipe 5. The gasket 6-6 provides a better seal at the contact surface. The addition of the gasket 6-6 effectively fills gaps caused by uneven contact surfaces, enhancing the sealing effect. The drain plug cap 6-5, through the gasket 6-6, mates with the first branch pipe 5, making the installation of the drain plug easier and ensuring a better seal during installation without requiring excessive adjustments.

[0059] The above-described embodiments are merely explanations of the present invention and are not intended to limit the present invention. After reading this specification, those skilled in the art can make modifications to the embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A sewage discharge filter ball valve, characterized in that, The valve body (1), valve stem (2), and handle (3) are included. A valve ball (4) is provided inside the valve body (1). The valve ball (4) and handle (3) are connected through the valve stem (2). A valve ball channel (4-1) is opened inside the valve ball (4). By turning the handle (3), the valve stem (2) is driven, which in turn drives the valve ball (4) to rotate, thereby controlling the rotation of the valve ball channel (4-1) to realize the opening and closing of the valve body (1). A first branch pipe (5) is provided in the valve body (1). A cylindrical filter screen (5-1) is provided inside the first branch pipe (5). A plug (1-1) is formed inside the valve body (1). The plug (1-1) is connected to the cylindrical filter screen (5-1).

2. The sewage filter ball valve according to claim 1, characterized in that, The first branch pipe (5) is equipped with a drain plug (6), and the first branch pipe (5) and the drain plug (6) are detachably connected.

3. The sewage filter ball valve according to claim 2, characterized in that, The drain plug (6) includes a connector (6-1), a magnet (6-2), and a magnet plug cap (6-3). The connector (6-1) is connected to the first branch pipe (5). The connector (6-1) forms a magnet groove (6-4). The magnet (6-2) is located in the magnet groove (6-4). The magnet plug cap (6-3) is detachably connected to the connector (6-1).

4. The sewage discharge filter ball valve according to claim 2, characterized in that, The drain plug (6) includes a drain plug cap (6-5), and a gasket (6-6) is provided between the drain plug cap (6-5) and the first branch pipe (5).

5. The sewage filter ball valve according to claim 1, characterized in that, The valve body (1) is provided with a second branch pipe (7), and the second branch pipe (7) is provided with a branch pipe plug (7-1). The second branch pipe (7) and the branch pipe plug (7-1) are detachably connected.

6. The sewage filter ball valve according to claim 1, characterized in that, A valve seat (1-2) is provided inside the valve body (1), and the valve ball (4) is located in the valve seat (1-2).

7. The sewage filter ball valve according to claim 6, characterized in that, A sealing ring (1-3) is provided between the valve seat (1-2) and the valve ball (4).

8. The sewage filter ball valve according to claim 1, characterized in that, The handle (3) forms a limiting part (3-1), and the valve stem (2) is provided with a limiting block (2-1), which cooperates with the limiting part (3-1).

9. The drain filter ball valve according to any one of claims 1-8, characterized in that, The valve body (1) is fitted with self-locking sealing bolts (8) at both ends, and beveled gaskets (9) are fitted on the outside of the self-locking sealing bolts (8).

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