Rain sewage pipeline filtering device

Abstract

The invention provides a rain sewage pipeline filtering device which comprises a filtering cylinder, a filtering assembly and a cleaning assembly, the filtering cylinder is detachably connected with a rain sewage pipeline, the filtering assembly is arranged in the filtering cylinder, the cleaning assembly comprises a brush, the brush is arranged in the filtering assembly and movably connected with the filtering assembly, and the cleaning assembly is arranged in the filtering cylinder and movably connected with the filtering assembly. The cleaning assembly is used for cleaning the filtering assembly. The device has the beneficial effects that impurities at the inlet end of the rain sewage pipeline can be filtered, and the impurities are prevented from flowing to a downstream pipeline; the blocking condition of the filtering assembly can be detected, automatic cleaning of a filter element is achieved, and the filter element is prevented from being blocked; the structure is simple, operation is convenient, the filter assembly does not need to be replaced frequently, the service life of the filter assembly is prolonged, and maintenance cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of rainwater and sewage treatment technology, and in particular relates to a rainwater and sewage pipeline filtration device. Background Technology

[0002] Industrial stormwater and sewage pipelines typically have fine filter screens at the inlet to prevent damage to the system's power components from impurities within the pipeline. However, due to the long distances of the pipelines, these fine filter screens are often clogged by larger impurities introduced from the pipeline, causing unstable system pressure or malfunction.

[0003] In the existing technology, the current solution to the above situation is to frequently or periodically replace the fine filter to achieve the purpose of stabilizing the system pressure. However, since the fine filter is a disposable consumable, it leads to a large consumption of filter, increased material and spare parts costs, and a significant increase in maintenance costs. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a rainwater and sewage pipe filtration device, which effectively solves the technical problems of high consumption and maintenance costs of fine filter screens in rainwater and sewage pipes, and overcomes the shortcomings of existing technologies.

[0005] The technical solution adopted in this invention is: a rainwater and sewage pipe filtration device, comprising:

[0006] The filter cartridge can be detachably connected to rainwater and sewage pipes;

[0007] A filter assembly is disposed inside the filter cartridge;

[0008] A cleaning component includes a brush disposed within and movably connected to the filter component for cleaning the filter component.

[0009] Furthermore, the filter cartridge is provided with an end cap, which is detachably connected to the filter cartridge, and the filter assembly is disposed on the end cap.

[0010] Furthermore, the end cap is provided with an inlet relative to the filter assembly, and the filter cartridge is provided with an outlet at the end away from the end cap. The inlet and outlet are detachably connected to the rainwater and sewage pipe.

[0011] Furthermore, the filter assembly includes a support frame and a filter element, with one end of the support frame disposed on the end cap and the filter element disposed inside the support frame.

[0012] Furthermore, the filter element is configured with a folded corrugated structure, arranged circumferentially along the support frame.

[0013] Furthermore, a sealing ring is provided between the support frame and the filter cartridge, and the sealing ring is disposed on the end cap.

[0014] Furthermore, the cleaning component also includes,

[0015] The screw has one end protruding from the end cap and rotatably connected to the end cap, and the other end rotatably connected to the bottom of the filter element.

[0016] A center plate is fitted onto the screw, and the brush is provided circumferentially.

[0017] The limiting rods are positioned opposite each other on both sides of the center plate, with one end extending into the filter element away from the center plate.

[0018] Furthermore, a drive motor is provided at one end of the screw that protrudes from the end cover, for driving the screw to rotate.

[0019] Furthermore, a gear transmission structure is provided at one end of the screw that protrudes from the end cover, and the gear transmission structure is connected to the drive motor.

[0020] Furthermore, it also includes a first pressure sensor and a second pressure sensor, the first pressure sensor being disposed inside the filter assembly and the second pressure sensor being disposed outside the filter assembly.

[0021] The advantages and positive effects of this invention are as follows: by adopting the above technical solution, impurities at the inlet of rainwater and sewage pipes can be filtered to prevent impurities from flowing to downstream pipes; the clogging of the filter components can be detected to achieve automatic cleaning of the filter element and prevent filter element clogging; the structure is simple and the operation is convenient, there is no need to frequently replace the filter components, the service life of the filter components is extended, and the maintenance cost is reduced. Attached Figure Description

[0022] The above and other objects, features, and advantages of the present invention will become more apparent from the more detailed description of the embodiments of the invention in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0023] Figure 1 This is a schematic diagram of the structure of a rainwater and sewage pipeline filtration device according to an embodiment of the present invention.

[0024] Figure 2 This is a top view of a filter assembly of a rainwater and sewage pipeline filtration device according to an embodiment of the present invention.

[0025] Figure 3 This is a front view of the cleaning component of a rainwater and sewage pipe filtration device according to an embodiment of the present invention.

[0026] Figure 4 This is a top view of a cleaning component of a rainwater and sewage pipe filtration device according to an embodiment of the present invention.

[0027] In the diagram: 1. Filter cartridge; 101. Inlet; 102. Outlet; 2. Support frame; 3. Filter element; 4. End cap; 5. Sealing ring; 6. First pressure sensor; 7. Second pressure sensor; 8. Screw; 9. Center plate; 10. Limiting rod; 11. Brush; 12. Drive motor. Detailed Implementation

[0028] This invention provides a rainwater and sewage pipe filtration device, and the embodiments of this invention will be described below with reference to the accompanying drawings.

[0029] In the description of the embodiments of this invention, it should be understood that the terms "top," "bottom," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the 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 invention. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "set" and "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0030] like Figure 1 As shown in the figure, an embodiment of the present invention provides a rainwater and sewage pipe filtration device, including a filter cartridge 1, a filter assembly, and a cleaning assembly. The filter cartridge 1 is detachably connected to the rainwater and sewage pipe for easy installation and disassembly. The filter assembly is disposed inside the filter cartridge 1 and is used for filtration. The cleaning assembly includes a brush 11, which is disposed inside the filter assembly and movably connected to the filter assembly. The brush 11 can move along the filter assembly to clean the entire filter assembly and prevent clogging. By setting up the cleaning assembly, the filter assembly can be cleaned periodically, eliminating the need for frequent replacement of the filter assembly.

[0031] Specifically, the filter cartridge 1 is equipped with an end cap 4, which is detachably connected to the filter cartridge 1. The filter assembly is mounted on the end cap 4. The filter cartridge 1 is a vertically oriented cylinder with a filter chamber inside, in which the filter assembly is located. To facilitate the placement of the filter assembly, one end of the filter cartridge 1 is open, and an end cap 4 is mounted on the open end cap, which is threadedly connected to the filter cartridge 1. The filter assembly is fixedly connected to the side of the end cap 4 closest to the filter cartridge 1. When the end cap 4 is connected to the filter cartridge 1, the filter assembly is placed inside the filter chamber.

[0032] Specifically, an inlet 101 is located on the end cap 4 relative to the filter assembly, and an outlet 102 is located at the end of the filter cartridge 1 furthest from the end cap 4. The inlet 101 and outlet 102 are detachably connected to the rainwater and sewage pipes. The inlet 101 and outlet 102 are threadedly connected to the rainwater and sewage pipes. Both the inlet 101 and outlet 102 are connected to the filter chamber. Sewage enters the internal filter chamber enclosed by the filter assembly through the inlet 101, is filtered by the filter assembly, enters the external filter chamber, and then exits the filter chamber through the outlet 102.

[0033] Specifically, such as Figure 2 As shown, the filter assembly includes a support frame 2 and a filter element 3. One end of the support frame 2 is mounted on an end cap 4, and the filter element 3 is installed inside the support frame 2 and adapted to it. To facilitate the installation of the filter element 3, the support frame 2 is fixed to the side of the end cap 4 near the filter cylinder 1. The support frame 2 is a vertically arranged, hollowed-out cylindrical shape, and its top is fixedly connected to the end cap 4. The filter element 3 is placed inside the support frame 2, along the inner wall of the support frame 2. The end of the filter element 3 near the end cap 4 is open and abuts against the end cap 4. The bottom wall of the filter element 3, i.e., the end away from the end cap 4, is made of a sealing material, preventing water from passing through. The side walls of the filter element 3 are made of a filtering material, allowing water to pass through. Wastewater entering the filter chamber enters the filter element 3 from the top and then flows out through the side walls of the filter element 3. Impurities are intercepted by the filter element 3, while the wastewater passes through the filter element 3 to the outlet 102 at the bottom of the filter chamber and flows into the downstream rainwater and sewage pipes.

[0034] Preferably, the filter element 3 is configured with a pleated corrugated structure, arranged circumferentially along the support frame 2. By adopting a pleated corrugated structure, the filtration area of ​​the filter element 3 can be effectively increased, improving the filtration efficiency for impurities in wastewater. The filter element 3 is a sintered metal filter element, made of stainless steel powder sintered into a hollow structure, capable of intercepting impurities such as fibers in wastewater. Because the filter element 3 is a hollow structure made of sintered stainless steel powder, it ensures that the pores of the filter element 3 are relatively uniform, have good pressure resistance, and a large dirt-holding capacity.

[0035] Preferably, a sealing ring 5 is provided between the support frame 2 and the filter cartridge 1, and the sealing ring 5 is disposed on the end cover 4. The sealing ring 5 is sleeved on the outside of the support frame 2, and the inner wall of the sealing ring 5 abuts against the outer wall of the support frame 2. The outer wall of the sealing ring 5 abuts against the inner wall of the filter cartridge 1. The upper end face of the sealing ring 5 is fixedly connected to the end cover 4. By providing the sealing ring 5, it is possible to prevent sewage from flowing directly into the external filter chamber from the end of the support frame 2 near the end cover 4 without passing through the filter element 3.

[0036] Specifically, such as Figure 3 and Figure 4As shown, the cleaning assembly also includes a screw 8, a center plate 9, and a limiting rod 10. The screw 8 is arranged along the axial direction of the filter element 3, with one end extending out of the end cover 4 and rotatably connected to the end cover 4 via a bearing, and the other end rotatably connected to the bottom wall of the filter element 3 via a bearing. The center plate 9 has a threaded hole in its center, which is fitted onto the screw 8 and threadedly connected to it. The center plate 9 is circular and fits the interior of the filter element 3. A brush 11 is fixed circumferentially to the center plate 9, and the brush 11 is arranged radially along the center plate 9. A limiting rod 10 is fixed radially to the outer side of the center plate 9. The limiting rod 10 is arranged opposite to each other on both sides of the center plate 9, with the end away from the center plate 9 extending into the corrugated structure of the filter element 3. The corrugated structure can limit and block the limiting rod 10, preventing the center plate 9 from rotating. When the screw 8 rotates, the center plate 9 can move up and down along the screw 8, thereby driving the brush 11 to move up and down along the height of the filter element 3. The brush 11 can penetrate into the interior of the folded corrugated structure of the filter element 3 and brush away the blockages to prevent the filter element 3 from becoming clogged.

[0037] Preferably, to facilitate the rotation of the screw 8, a drive motor 12 is connected to one end of the screw 8 that protrudes from the end cover 4 to drive the screw 8 to rotate. The drive motor 12 can be fixed to the end cover 4 by a mounting bracket, or it can be left unfixed to the end cover 4.

[0038] In some embodiments, to facilitate the installation of the drive motor 12, the drive motor 12 is not fixed to the end cover 4, but installed outside the end cover 4; therefore, a transmission structure is required. Specifically, a gear transmission structure is provided at the end of the screw 8 that protrudes from the end cover 4, and the gear transmission structure is connected to the drive motor 12. The gear transmission structure includes a first gear and a second gear. The first gear is fixedly connected to the screw 8, and the second gear is fixedly connected to the output shaft of the drive motor 12. The first gear and the second gear are externally meshed. The gear transmission mechanism is prior art, and its specific structure and connection method are not described in detail here and are not shown in the figures.

[0039] Preferably, the filter assembly also includes a first pressure sensor 6 and a second pressure sensor 7. The first pressure sensor 6 is disposed inside the filter assembly, and the second pressure sensor 7 is disposed outside the filter assembly. The first pressure sensor 6 is fixed to the end cap 4, and the second pressure sensor 7 can be fixed to the lower end face of the sealing ring 5 or to the inner wall of the filter cartridge 1. The output terminals of the first pressure sensor 6 and the second pressure sensor 7 are electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the drive motor 12. When the pressure difference between the pressure values ​​detected by the first pressure sensor 6 and the second pressure sensor 7 is large, indicating that the filter cartridge 3 is clogged to varying degrees, the drive motor 12 starts; when the pressure difference between the pressure values ​​detected by the first pressure sensor 6 and the second pressure sensor 7 returns to the normal value, the drive motor 12 stops. Under normal circumstances, the center plate 9 is disposed on the inner bottom wall of the filter cartridge 3 to receive the filtered impurities. When the pressure difference between the pressure value detected by the first pressure sensor 6 and the pressure value detected by the second pressure sensor 7 is large, indicating that the filter element 3 is clogged to varying degrees, the drive motor 12 drives the screw 8 to rotate, causing the center plate 9 to move up and down along the screw 8. The bristles on the outside of the center plate 9 slide along the inner wall of the filter element 3, thereby scraping away the blockage on the inner wall of the filter element 3 and preventing the filter element 3 from becoming clogged.

[0040] Working process: During normal filtration, sewage flows into the upper end of filter element 3 from inlet 101 and enters the filter chamber inside filter element 3. After being filtered by the side wall of filter element 3, it flows out in all directions. Impurities are intercepted by filter element 3. Sewage passes through filter element 3 and reaches outlet 102 at the bottom of filter chamber, flowing into downstream rainwater and sewage pipes.

[0041] When the pressure difference between the pressure value detected by the first pressure sensor 6 and the pressure value detected by the second pressure sensor 7 is large, indicating that the filter element 3 is clogged to varying degrees, the drive motor 12 starts and drives the screw 8 to rotate, causing the center plate 9 to move up and down along the screw 8. The brush 11 on the edge of the center plate 9 can penetrate into the interior of the folded corrugated structure of the filter element 3, thereby scraping away the blockage on the inner wall of the filter element 3 and preventing the filter element 3 from becoming clogged.

[0042] The advantages and positive effects of this invention are:

[0043] 1. By installing a filter assembly, impurities at the inlet of rainwater and sewage pipes can be filtered to prevent them from flowing into downstream pipes.

[0044] 2. By setting up a cleaning component, the filter components can be cleaned, preventing filter clogging;

[0045] 3. By setting up a first sensor and a second sensor, the clogging of the filter components can be detected, enabling automatic cleaning of the filter element;

[0046] 4. The structure is simple and easy to operate. It does not require frequent replacement of filter components, which extends the service life of the filter components and reduces maintenance costs.

[0047] The embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and have not been described in detail. Furthermore, the definitions of the various components described above are not limited to the specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0048] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A device for filtering stormwater sewer pipes, characterized in that, The utility model relates to a rainwater and sewage pipeline filter device, comprising: a filter cartridge detachably connected with a rainwater and sewage pipeline; a filter assembly arranged in the filter cartridge; a cleaning assembly comprising a brush arranged in the filter assembly and movably connected with the filter assembly for cleaning the filter assembly.

2. The rainwater and sewage pipeline filtering device according to claim 1, characterized in that: The filter cartridge is provided with an end cover detachably connected with the filter cartridge, and the filter assembly is arranged on the end cover.

3. The rainwater and sewage pipeline filtering device according to claim 3, characterized in that: An inlet is arranged on the end cover relative to the position of the filter assembly, and an outlet is arranged at an end of the filter cartridge away from the end cover, the inlet and the outlet being detachably connected with the rainwater and sewage pipeline.

4. A rainwater sewer pipe filtering device according to claim 2 or 3, characterized in that: The filter assembly comprises a support frame and a filter core, one end of the support frame being arranged on the end cover, and the filter core being arranged in the support frame.

5. A rainwater sewer pipe filtering device according to claim 4, wherein: The filter core is arranged in a folded corrugated structure along the circumference of the support frame.

6. The rainwater and sewage pipeline filtering device according to claim 4, characterized in that: A sealing ring is arranged between the support frame and the filter cartridge, and the sealing ring is arranged on the end cover.

7. A stormwater sewer pipe filtering device according to claim 5 or 6, characterised in that: The cleaning assembly further comprises, a screw rod rotatably connected with the end cover at one end and rotatably connected with the bottom of the filter core at the other end; a center plate sleeved on the screw rod and provided with the brush in the circumference; limiting rods oppositely arranged on both sides of the center plate and extending into the filter core at the ends away from the center plate.

8. The rainwater and sewage pipeline filtering device according to claim 7, characterized in that: The end of the screw rod penetrating out of the end cover is provided with a driving motor for driving the screw rod to rotate.

9. A rainwater sewer pipe filtering device according to claim 8, characterized in that: The end of the screw rod penetrating out of the end cover is provided with a gear transmission structure connected with the driving motor.

10. A storm sewer pipe filtering device according to any one of claims 1-3, 5-6 and 8-9, characterized in that: Further comprising a first pressure sensor and a second pressure sensor, the first pressure sensor being arranged inside the filter assembly, and the second pressure sensor being arranged outside the filter assembly.

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