A pipeline filtering node

Abstract

The utility model relates to a pipeline filtering node belongs to the field of filtering equipment. Its technical scheme is a kind of pipeline filtering node, including filtering component, the both ends of filtering component are respectively equipped with ball valve component, filtering component includes first cylinder, and the both ends of first cylinder are equipped with first connecting disc;The ball valve component includes second cylinder, and one end of second cylinder is equipped with second connecting disc, and second connecting disc and first connecting disc mutually adhere, and the outer periphery of second connecting disc and first connecting disc is jointly installed with clamp.The filtering node of the present scheme is respectively provided with ball valve in the both ends of filtering component, can directly close two ball valves and disconnect pipeline when replacing or maintaining filtering component, ball valve is close to operating position, and positioning is convenient, and operation is quick, improves the repair efficiency;Meanwhile, filtering component and ball valve component are all cylinder structure, and the size of appearance is substantially unified with pipeline, and the space occupied is small, and it is convenient to install arrangement.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment, and in particular to a pipeline filtration node. Background Technology

[0002] In industrial production systems, fluid transportation is a core component ensuring the stable operation of all stages. Pipeline systems serve as the primary carriers for fluid transportation. During this process, various impurities easily enter the pipelines, such as residual particles from raw materials, sediments generated during long-term fluid transport, and debris worn off from the inner walls of the pipelines. If these impurities are not removed promptly, they will directly affect the purity of the transported fluid. Furthermore, these impurities can damage downstream production equipment, such as clogging pumps and valves, accelerating the wear and tear on internal components, and shortening the equipment's lifespan.

[0003] Currently, industrial filters are mainly classified into various types based on their structure and filtration principle, including Y-type filters, T-type filters, basket filters, and bag filters. However, current filters have several shortcomings: First, in terms of size, existing filters are generally designed to be large in size to ensure filtration effect and structural stability, requiring significant installation space. This makes installation difficult in production scenarios with dense piping and limited space, potentially causing interference with other equipment and pipelines, and increasing the complexity of the piping system layout. Second, when replacing or maintaining filter elements, existing filters require stopping the flow of fluid in a specific pipe section. However, in complex piping systems, the location of valves corresponding to the pipe section often needs to be determined by comparing with design drawings, and there is a risk of closing the wrong valve, resulting in low maintenance efficiency for both the filter and the piping system. Summary of the Invention

[0004] This invention addresses the problems of large filter size, inconvenient layout, and difficulty in valve positioning when shutting down pipe sections in current pipeline systems by providing a small and easy-to-close pipeline filter node.

[0005] To address the aforementioned problems, the present invention provides a pipeline filter node comprising a filter assembly, with ball valve assemblies at both ends of the filter assembly. The filter assembly includes a first cylindrical body with first connecting discs at both ends. Each ball valve assembly includes a second cylindrical body with a second connecting disc at one end. The second connecting disc is in close contact with the first connecting disc, and clamps are installed around both the outer peripheries of the second and first connecting discs. This design provides ball valves at both ends of the filter assembly, allowing for direct closure of both ball valves to disconnect the pipeline during filter assembly replacement or maintenance. The ball valves are located close to the operating position, facilitating easy positioning and quick operation, thus improving maintenance efficiency. Furthermore, both the filter assembly and the ball valve assemblies are cylindrical structures with dimensions largely consistent with the pipeline, minimizing space requirements and facilitating installation.

[0006] As a preferred implementation of a pipeline filter node, the other end of the second cylinder is provided with an internal threaded tube, which is used to connect to an external pipeline. Threaded connections offer strong versatility and are compatible with most standard external pipeline specifications on the market, thus expanding the equipment's adaptability.

[0007] As a preferred implementation of a pipeline filtration node, the filtration assembly further includes a filter element. The filter element is frustoconical, with an outwardly protruding edge at its large-diameter end and an inwardly protruding edge at one end of the inner wall of the first cylinder. Both the inwardly and outwardly protruding edges are annular and are fixedly connected. The small-diameter end of the filter element is inserted into the interior of the first cylinder and faces the water inlet of the first cylinder. The frustoconical structure reduces fluid resistance, lowers pressure loss in the pipeline system, and avoids a decrease in conveying efficiency due to the filtration assembly. With the small-diameter end of the filter element facing the water inlet, impurities are more easily intercepted inside the filter element during fluid impact, and the inclined surface reduces impurity accumulation, extending the cleaning cycle of the filter element. The annular fixing structure of the inwardly and outwardly protruding edges ensures that the filter element does not shift within the first cylinder, preventing misalignment of the filter element due to fluid impact and ensuring stable filtration accuracy.

[0008] As a preferred implementation of a pipeline filter node, the side faces of the inner convex edge and the outer convex edge are abutted against each other and fixedly connected by screws. A sealing ring is also provided between the inner convex edge and the outer convex edge. The screw fixing method can provide a stable clamping force, preventing the filter element from loosening under the impact of high-pressure fluid and ensuring the connection stability between the filter element and the first cylinder. The sealing ring can fill the tiny gaps between the mating surfaces of the inner and outer convex edges, completely blocking unfiltered fluid from flowing out of the gaps, ensuring that all fluids must be filtered by the filter element, thus ensuring filtration accuracy. Moreover, the screw connection is easy to disassemble, and subsequent replacement of the sealing ring or filter element is convenient without damaging the structure of the first cylinder.

[0009] As a preferred implementation of a pipeline filter node, an annular groove is formed on the side end face of the inner convex edge, and the sealing ring is disposed in the annular groove. The annular groove provides precise positioning for the sealing ring, preventing it from shifting during installation and causing seal failure. It also prevents the sealing ring from displacing during fluid impact, ensuring long-term sealing stability. The annular groove ensures uniform stress on the sealing ring, reducing localized compression deformation and extending its service life. Furthermore, the structure of the annular groove facilitates quick positioning of the sealing ring, improving assembly efficiency and reducing operational error rates.

[0010] As a preferred implementation of a pipeline filtration node, a drain pipe is provided on the wall of the first cylinder, which connects to the interior of the first cylinder, and a drain valve is installed on the drain pipe. Impurities are directly discharged through the drain pipe without disassembling the filter element, reducing maintenance workload and operation time, while avoiding damage to the sealing structure caused by frequent disassembly and reassembly of the filter element; the drain valve can precisely control the draining process, adjusting the draining volume and draining time as needed, reducing fluid waste.

[0011] As a preferred implementation of a pipeline filter node, the clamp includes two clamp units, each being semi-annular. One end of each clamp unit is rotatably fixed, while the other end is detachably connected. The inner annular surface of each clamp unit has an annular groove, within which the first and second connecting discs are located. The semi-annular clamp unit and rotatable connection structure allow the clamp to be installed directly on the outside of the connecting discs without needing to be fitted onto the pipe end, thus adapting to fixed pipeline systems and reducing installation difficulty. The annular groove on the inner annular surface provides radial restraint to the first and second connecting discs, preventing separation under fluid pressure while ensuring a tight fit and improved sealing. The detachable design facilitates quick tightening and loosening, further improving assembly and disassembly efficiency.

[0012] As a preferred implementation of a pipeline filter node, a sealing gasket is also provided between the first connecting plate and the second connecting plate. The sealing gasket can fill the processing errors and minor scratches on the mating surfaces of the two connecting plates, enhance the sealing performance of the connection, prevent high-pressure fluid from leaking from the connection seam, and improve equipment safety. Compared with relying solely on the metal surfaces of the connecting plates for sealing, the sealing gasket provides a more stable sealing effect and has a stronger ability to adapt to temperature changes, making it suitable for different operating conditions such as high and low temperatures. The sealing gasket is also low in cost and easy to replace, reducing equipment maintenance costs.

[0013] As a preferred implementation of a pipeline filter node, the clamp also includes a connecting block, on which both clamp units are hinged. The connecting block and the double-hinged structure ensure that the two clamp units maintain a stable relative position, preventing the clamp units from being lost or misaligned after disassembly, thus improving maintenance convenience. The hinge points are concentrated on the connecting block, making the opening and closing of the clamp smoother, reducing jamming and lowering the operating force. At the same time, the connecting block enhances the overall structural strength of the clamp, preventing the clamp units from deforming due to uneven force during locking, thus extending the service life of the clamp.

[0014] As a preferred implementation of pipeline filtration nodes, the filter element is a powder sintered filter element. Powder sintered filter elements use materials such as titanium and stainless steel, exhibiting strong corrosion resistance and a wide range of filtration precision. They eliminate the need to replace different types of filters for different scenarios, improving equipment versatility. They support repeated rinsing and regeneration, reducing the need for frequent filter element replacements, lowering consumable costs and solid waste generation, and better meeting environmental protection requirements. Furthermore, their uniform porous structure provides strong impact resistance, enabling them to withstand high-pressure fluid impacts without damage, ensuring a stable filtration process.

[0015] As can be seen from the above technical solutions, the beneficial effects of this utility model are as follows: First, the ball valve assemblies at both ends of the filter assembly can be quickly closed to disconnect the local pipeline, which is convenient to operate and precise in positioning, greatly improving maintenance efficiency. At the same time, both the filter assembly and the ball valve assembly adopt a cylindrical structure, and their external dimensions are basically the same as those of the pipeline, which greatly reduces the installation space occupied and facilitates the layout of the pipeline system. Second, the internal threaded tube connection method has strong versatility and can be compatible with most standard external pipelines, improving the equipment's adaptability. The frustum-shaped filter element design increases the filtration area, reduces fluid resistance and impurity accumulation, and, combined with the annular fixing structure of the inner and outer convex edges, ensures that the filter element does not shift and the filtration accuracy is stable. The corrosion resistance, wide filtration accuracy range (0.22~50μm), and repeated washing and regeneration characteristics of the powder sintered filter element not only adapt to complex working conditions and improve the equipment's versatility, but also reduce consumable costs and solid waste generation, meeting environmental protection requirements. Third, the screw fixing... The fixed connection provides stable clamping force for the filter element, preventing loosening under high pressure. The annular groove on the inner convex side precisely limits the sealing ring, preventing it from shifting or deforming, ensuring long-term sealing stability. At the same time, the screw connection facilitates subsequent disassembly and replacement of the sealing ring or filter element without damaging the cylinder structure. Fourth, the drain pipe and drain valve on the first cylinder wall can directly discharge impurities without disassembling the filter element, reducing maintenance workload and fluid waste. The double hinge structure of the semi-annular clamp unit and the connecting block allows for opening and closing without slipping it onto the pipe end, adapting to fixed pipeline systems. The annular groove on the inner ring surface radially limits the connecting plate, enhancing the sealing effect. The connecting block also prevents the clamp unit from being lost or misaligned, improves operational smoothness, and enhances the overall strength of the clamp. In addition, the sealing gasket between the first and second connecting plates can fill in processing errors and scratches, improving sealing stability under high pressure, adapting to high and low temperature conditions, and is low-cost and easy to replace, further reducing maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0018] Figure 2 for Figure 1 A cross-sectional view of the axial section.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4This is a schematic diagram of the structure of the first cylinder in a specific embodiment of this utility model.

[0021] Figure 5 This is a schematic diagram of the ball valve assembly in a specific embodiment of the present invention.

[0022] Explanation of main figure symbols 01. Filter assembly, 02. Ball valve assembly, 1. First cylinder, 11. Inner convex edge, 2. First connecting plate, 3. Second cylinder, 4. Second connecting plate, 5. Internal threaded tube, 6. Clamp, 6-1. Clamp unit, 6-2. Annular groove, 6-3. Connecting block, 7. Filter element, 71. Outer convex edge, 8. Sealing ring, 9. Drain pipe, 10. Drain valve, 12. Screw, 13. Sealing gasket. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] A pipeline filter node includes a filter assembly 01 and ball valve assemblies 02 located at both ends of the filter assembly 01. The ball valve assemblies 02 at both ends can be directly closed to disconnect a local pipeline when replacing or maintaining the filter assembly 01, without shutting down the entire pipeline system. The ball valves are close to the operating position, easy to position, and quick to operate, which can significantly improve maintenance efficiency. At the same time, both the filter assembly 01 and the ball valve assembly 02 are cylindrical structures with dimensions that are basically the same as the pipeline, occupying little space and facilitating installation in dense pipeline scenarios.

[0025] The filter assembly 01 includes a first cylindrical body 1 and a filter element 7. The first cylindrical body 1 has first connecting discs 2 at both ends. One end of the inner wall of the first cylindrical body 1 has an inner protruding edge 11, which is annular. An annular groove is formed on the side end face of the inner protruding edge 11, and a sealing ring 8 is provided in the annular groove. The annular groove can precisely limit the positioning of the sealing ring 8, preventing it from shifting during installation and causing sealing failure. It also prevents the sealing ring 8 from shifting during fluid impact, ensuring long-term sealing stability. Furthermore, it allows the sealing ring 8 to be subjected to uniform force, reducing localized compression deformation to extend its service life. Additionally, it facilitates quick positioning of the sealing ring 8, improving assembly efficiency and reducing operational costs. Error rate; The filter element 7 is a powder sintered filter element in the shape of a frustum. The powder sintered filter element uses titanium, stainless steel and other materials as raw materials, which are highly corrosion resistant and can be adapted to complex working conditions such as strong acid and alkali in chemical industry and oily petroleum. Its filtration accuracy range is wide, eliminating the need to replace different types of filters for different scenarios, improving the versatility of the equipment. It also supports repeated rinsing and regeneration, eliminating the need for frequent replacement, reducing consumable costs and solid waste generation, and meeting environmental protection requirements. The frustum-shaped structure can increase the filtration area, reduce fluid resistance to reduce pressure loss in the pipeline system, and avoid the decrease in conveying efficiency caused by the filter element 01; The large diameter end of the filter element 7 is provided with an outward convex edge 71, which is annular, and the inner convex edge 71 is... The side end face of edge 11 and the side end face of the outer convex edge 71 are abutted against each other and fixedly connected by screws 12. The screw 12 fixing method can provide stable clamping force, prevent the filter element 7 from loosening under the impact of high pressure fluid, ensure the connection stability between the filter element 7 and the first cylinder 1, and the screw 12 connection is easy to disassemble, making it convenient to replace the sealing ring 8 or the filter element 7 in the future without damaging the structure of the first cylinder 1; the sealing ring 8 is located between the inner convex edge 11 and the outer convex edge 71, which can fill the tiny gaps on the contact surfaces of the inner convex edge 11 and the outer convex edge 71, completely blocking the unfiltered fluid from flowing out of the gaps, ensuring that all fluids are filtered by the filter element 7, and ensuring filtration accuracy; the small The end of the filter element 7 is inserted into the interior of the first cylinder 1 and faces the water inlet of the first cylinder 1. This design makes it easier for impurities to be intercepted inside the filter element 7 when the fluid impacts, and the inclined surface can reduce the accumulation of impurities and extend the cleaning cycle of the filter element 7. A drain pipe 9 is provided on the cylinder wall of the first cylinder 1. The drain pipe 9 is connected to the interior of the first cylinder 1. A drain valve 10 is installed on the drain pipe 9. Impurities can be discharged directly through the drain pipe 9 without disassembling the filter element 7, reducing maintenance workload and operation time. At the same time, it avoids damage to the sealing structure caused by frequent disassembly and assembly of the filter element 7. The drain valve 10 can also precisely control the draining process and adjust the draining volume and draining time as needed to reduce fluid waste.

[0026] The ball valve assembly 02 includes a second cylinder 3, one end of which is provided with a second connecting plate 4. The second connecting plate 4 is in contact with the first connecting plate 2. A sealing gasket 13 is also provided between the first connecting plate 2 and the second connecting plate 4. The sealing gasket 13 can fill the processing errors and minor scratches on the contact surfaces of the two connecting plates, enhance the sealing of the connection, prevent high-pressure fluid from leaking from the connection seam, improve equipment safety, and its sealing effect is more stable than that of the metal surface of the connecting plate alone. It has a stronger ability to adapt to temperature changes and can be adapted to different working conditions such as high temperature and low temperature. At the same time, the sealing gasket 13 is low in cost and easy to replace, which can reduce equipment maintenance costs.

[0027] The second connecting plate 4 and the first connecting plate 2 are both equipped with clamps 6 on their outer peripheries. The clamp 6 includes two clamp units 6-1 and a connecting block 6-3. Both clamp units 6-1 are hinged to the connecting block 6-3. The connecting block 6-3 and the double-hinged structure ensure that the two clamp units 6-1 maintain a stable relative position, preventing loss or misalignment of the clamp units 6-1 after disassembly, improving maintenance convenience. Furthermore, the hinge points are concentrated on the connecting block 6-3, making the opening and closing of the clamp 6 smoother, reducing jamming and operating force. Simultaneously, the connecting block 6-3 enhances the overall structural strength of the clamp 6, preventing deformation of the clamp units 6-1 due to uneven force during locking, thus extending the service life of the clamp 6. The clamp unit 6-1 is semi-circular, and the two clamp units... One end of the body 6-1 is rotatably fixed, and the other ends of the two clamp units 6-1 are detachably connected. The semi-annular clamp unit 6-1 and the rotatable connection structure allow the clamp 6 to be installed directly on the outside of the connecting plate without having to be inserted from the end of the pipe. This adapts to the fixed pipe system, reducing installation difficulty. The detachable end design also facilitates quick locking and unlocking, further improving disassembly and assembly efficiency. The inner ring surface of the clamp unit 6-1 is provided with an annular groove 6-2. The first connecting plate 2 and the second connecting plate 4 are located in the annular groove 6-2. The annular groove 6-2 on the inner ring surface can form a radial limit on the first connecting plate 2 and the second connecting plate 4, preventing the two connecting plates from separating under fluid pressure, while ensuring that the two connecting plates fit tightly, further enhancing the sealing effect.

[0028] The other end of the second cylinder 3 is provided with an internal threaded tube 5, which is used to connect to external pipes. The threaded connection of the internal threaded tube 5 is highly versatile and can be compatible with most standard external pipes on the market, thus improving the equipment's adaptability. Moreover, no welding or additional connectors are required during installation, and no professional welding equipment or technology is needed, reducing the operational threshold. The sealing performance of the threaded connection can also be adjusted according to the degree of tightening, making it suitable for pipeline systems with different pressure levels.

[0029] As can be seen from the above embodiments, the advantages of this utility model are as follows: the ball valve assemblies at both ends can be quickly closed to disconnect local pipelines, greatly improving maintenance efficiency; both the filter assembly and the ball valve assembly are cylindrical structures with uniform dimensions to the pipeline, significantly reducing installation space occupation and facilitating layout in densely piped environments; the internal threaded connection has strong versatility, is compatible with most standard external pipelines, and can be installed without welding, lowering the operating threshold and adapting to systems of different pressure levels. In the filtration process, the frustum-shaped powder sintered filter element not only increases the filtration area, reduces fluid resistance and impurity accumulation, and extends the cleaning cycle, but also, with its strong corrosion resistance, wide filtration accuracy range, and regeneration capabilities, adapts to complex working conditions, improves equipment versatility, and reduces consumable costs and solid waste generation, meeting environmental protection requirements; the inner and outer convex edges are fixed by screws, providing stable clamping force for the filter element, and with the sealing ring with annular groove limiting, it can prevent the sealing ring from shifting and deforming, completely blocking the leakage of unfiltered fluid, ensuring filtration accuracy and long-term sealing stability; and the screw connection facilitates subsequent disassembly and replacement without damaging the cylindrical structure. In terms of maintenance, the drain pipe and drain valve of the first cylinder can directly discharge impurities without disassembling the filter element, reducing maintenance workload and fluid waste; the semi-annular clamp unit with the connecting block has a double hinge structure, which can be opened and closed without being inserted from the end of the pipe, and is compatible with the fixed pipeline system. The annular groove can radially limit the connecting plate and enhance the sealing effect. The connecting block can also prevent the clamp unit from being lost or misaligned, improve the smoothness of operation and enhance the clamp strength; the sealing gasket between the first and second connecting plates can fill the processing errors and scratches, improve the high pressure sealing stability, adapt to high and low temperature conditions, and is low in cost and easy to replace, further reducing maintenance costs.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe filter node, characterized in that, The filter assembly includes a filter assembly (01), and ball valve assemblies (02) are provided at both ends of the filter assembly. The filter assembly (01) includes a first cylinder (1), and a first connecting plate (2) is provided at both ends of the first cylinder (1). The ball valve assembly (02) includes a second cylinder (3), and a second connecting plate (4) is provided at one end of the second cylinder (3). The second connecting plate (4) is in close contact with the first connecting plate (2), and a clamp (6) is installed on the outer periphery of the second connecting plate (4) and the first connecting plate (2).

2. The pipeline filter node according to claim 1, characterized in that, The other end of the second cylinder (3) is provided with an inner thread tube (5), which is used to connect to an external pipe.

3. The pipeline filter node according to claim 1, characterized in that, The filter assembly (01) also includes a filter element (7), which is frustoconical in shape. The large-diameter end of the filter element (7) is provided with an outward protruding edge (71), and one end of the inner wall of the first cylinder (1) is provided with an inward protruding edge (11). Both the inward protruding edge (11) and the outward protruding edge (71) are annular. The inward protruding edge (11) and the outward protruding edge (71) are fixedly connected. The small-diameter end of the filter element (7) is inserted into the interior of the first cylinder (1) and faces the water inlet end of the first cylinder (1).

4. The pipeline filter node according to claim 3, characterized in that, The side end face of the inner convex edge (11) and the side end face of the outer convex edge (71) are close to each other and are fixedly connected by screws (12). A sealing ring (8) is also provided between the inner convex edge (11) and the outer convex edge (71).

5. The pipeline filter node according to claim 4, characterized in that, An annular groove is provided on the side end face of the inner convex edge (11), and the sealing ring (8) is disposed in the annular groove.

6. The pipeline filter node according to any one of claims 1-5, characterized in that, The first cylinder (1) is provided with a drain pipe (9) on its cylinder wall. The drain pipe (9) is connected to the interior of the first cylinder (1). A drain valve (10) is installed on the drain pipe (9).

7. The pipeline filter node according to any one of claims 1-5, characterized in that, The clamp (6) includes two clamp units (6-1), each clamp unit (6-1) being semi-circular. One end of each clamp unit (6-1) is rotatably fixedly connected, and the other end of each clamp unit (6-1) is detachably connected. The inner ring surface of each clamp unit (6-1) is provided with an annular groove (6-2), and the first connecting plate (2) and the second connecting plate (4) are located in the annular groove (6-2).

8. The pipeline filter node according to claim 7, characterized in that, A sealing gasket (13) is also provided between the first connecting plate (2) and the second connecting plate (4).

9. The pipeline filter node according to claim 7, characterized in that, The clamp (6) also includes a connecting block (6-3), and both clamp units (6-1) are hinged to the connecting block (6-3).

10. The pipeline filter node according to claim 3, characterized in that, The filter element is a powder sintered filter element.

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