Self-cleaning basket filter

Abstract

The utility model discloses a self-cleaning basket type filter which comprises a barrel and a filter basket arranged in the barrel, liquid entering the barrel is filtered through the filter basket, a cleaning pipeline and a rotary spray head are arranged on the inner side of the filter basket, and the upper end of the cleaning pipeline penetrates out of a top cover plate arranged at the top of the barrel and then is connected with the rotary spray head. An external cleaning fluid source is connected, a throttling stop valve is arranged, a cleaning structure for the filter basket is formed, the barrel is connected with a blowdown device at the bottom of the filter basket in a penetrating mode, impurities deposited at the bottom of the barrel are discharged, the self-cleaning and blowdown functions are achieved, the filter screen is cleaned without disassembling a cover, the workload is reduced, and the safety and environmental protection risks are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of basket filters, and more particularly to a self-cleaning basket filter. Background Art

[0002] The function of a basket filter is to trap solid impurities within the basket after liquid enters through the main pipe, allowing clean fluid to pass through the basket and exit through the filter outlet. To clean the basket, the filter flange cover is removed, the basket is removed for cleaning, and then reinstalled. Current basket filters often use a flange cover secured with multiple bolts. The basket is installed inside the filter. Cleaning the basket requires frequent screw removal and installation, which is labor-intensive and time-consuming, especially during liquid truck loading and unloading operations, significantly impacting work efficiency. Furthermore, manual flushing of the basket can cause impurities or liquid to leak, potentially contaminating the ground. Improper reinstallation can also cause liquid loss, posing a safety and environmental hazard. To address these issues and improve work efficiency while ensuring a safe and environmentally friendly process, a self-cleaning basket filter has been developed. This eliminates the need for disassembly of flange screws and automatically flushes the basket, improving work efficiency. Furthermore, it provides a sealed discharge of impurities, minimizing safety and environmental risks. Summary of the Invention

[0003] The utility model aims to provide a self-cleaning basket filter to solve the technical problem of low self-cleaning efficiency of the self-cleaning basket filter in the prior art.

[0004] In order to achieve these purposes and other advantages of the utility model, a self-cleaning basket filter is provided, which includes a cylinder body, a cylindrical filter basket is arranged inside the cylinder body, the top of the cylinder body is detachably and sealedly connected to the top cover plate, the bottom of the cylinder body is downwardly penetrated and connected to a sewage discharge device, and the sewage discharge device is provided with a sewage discharge valve, the inner upper end of the cylinder body is radially inwardly connected to a sealing ring, the inner top of the sealing ring is provided with a top card groove, and the bottom inner side of the cylinder body is provided with a bottom card groove, the upper end of the filter basket is detachably connected through the top card groove, and the lower end is detachably connected through the bottom card groove, the side wall of the cylinder body is penetrated and connected with an inlet pipeline above the sealing ring, and is penetrated and connected with an outlet pipeline below the sealing ring, a cleaning pipeline is penetrated and connected to the inside of the filter basket on the top cover plate, the lower end of the cleaning pipeline extends into the filter basket and rotating nozzles are arranged at intervals for cleaning the filter basket, the upper end of the cleaning pipeline passes through the outside of the top cover plate to be connected to a cleaning source and is provided with a throttling stop valve.

[0005] Preferably, the rotary nozzle is provided with three spraying channels, each of which is an arc-shaped structure and is inclined outward and downward.

[0006] Preferably, a circle of cover ring is fixedly connected to the top of the cylinder, the top cover plate is fitted on the upper surface of the cover ring and a sealing ring is provided between the cover ring, the outer side of the cover ring extends outward beyond the outer wall of the cylinder and is nested and connected with the outer side of the top cover plate by a clip, and an adjusting bolt is provided on the clip, which realizes the fastening effect of the clip on the top cover plate and the cover ring through the adjusting bolt.

[0007] Preferably, flange connection structures are respectively provided on the end faces of the inlet pipeline and the outlet pipeline.

[0008] Preferably, the sewage discharge device includes a first sewage discharge pipeline, a residue tank, and a second sewage discharge pipeline which are sequentially connected along the sewage discharge direction. The front end of the first sewage discharge pipeline is connected to the bottom of the cylinder. The sewage valve is arranged on the first sewage discharge pipeline for opening or closing the first sewage discharge pipeline. Several filter screens are arranged at intervals in the residue tank in the sewage discharge direction.

[0009] Preferably, the bottom of the cylinder is tilted downward toward the first sewage discharge line to form a conical structure.

[0010] Preferably, the cylinder and the filter basket are cylindrical structures respectively.

[0011] The utility model has at least the following beneficial effects:

[0012] (1) The self-cleaning basket filter of the present invention comprises a cylinder and a filter basket arranged inside the cylinder. The liquid entering the cylinder is filtered through the filter basket. A cleaning pipeline and a rotating nozzle are arranged inside the filter basket. After the upper end of the cleaning pipeline passes through the top cover plate arranged on the top of the cylinder, it is connected to an external cleaning fluid source and a throttle stop valve is arranged to form a cleaning structure for the filter basket. After the high-pressure water source is introduced, the filter basket is cleaned. According to work needs, the filter screen cleaning operation can be carried out on site, and the filter screen does not need to be removed. The operation is convenient, the workload is small, and it is conducive to improving work efficiency.

[0013] (2) The bottom of the cylinder of the self-cleaning basket filter is tilted toward the sewage discharge device to form a conical structure, which is conducive to the discharge of impurities after they are deposited at the bottom, and will not cause impurities to accumulate at the bottom of the filter.

[0014] (3) The sewage discharge device of the self-cleaning basket filter is equipped with a sewage valve, which can be used to discharge sewage at any time during daily use, effectively extending the service life of the filter and improving the filtering effect of the filter.

[0015] (4) The bottom sewage discharge of the self-cleaning basket filter is connected to the residue tank, which can realize the filtration of the residue under normal pressure. Impurities can be accumulated in the residue tank and cleaned regularly. The filtered liquid is returned to the factory sewage system. The entire operation process is close to a closed environment, reducing the safety and environmental risks of the operation.

[0016] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a main structural diagram of the self-cleaning basket filter of the present utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of the residue tank of the utility model.

[0019] Explanation of the reference numerals in the specification: 100, cylinder, 101, top cover plate, 102, buckle, 103, sealing ring, 104, sealing ring, 105, bottom slot, 106, cover ring, 107, adjusting bolt, 200, filter basket, 201, top slot, 300, cleaning pipeline, 301, rotating nozzle, 302, throttling stop valve, 303, high-pressure hose quick connector, 400, residue tank, 401, first filter screen, 402, second filter screen, 403, drain valve, 404, first drain pipeline, 405, second drain pipeline, 500, inlet pipeline, 600, outlet pipeline. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0021] In the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] like Figure 1-2As shown, the self-cleaning basket filter of the present invention comprises a cylinder 100, a cylindrical filter basket 200 is provided inside the cylinder 100, a top cover plate 101 is detachably and sealedly connected to the top of the cylinder 100, a sewage discharge device is connected downwardly through the bottom of the cylinder 100, a sewage discharge valve 403 is provided on the sewage discharge device, a sealing ring 104 is connected radially inwardly to the upper end of the cylinder 100, a top card groove 201 is provided on the inner top of the sealing ring 104, a bottom card groove 105 is provided on the inner side of the bottom of the cylinder 100, and the upper end of the filter basket 200 can be opened and closed through the top card groove 201. The lower end of the cleaning pipeline 300 is detachably connected through the bottom card slot 105. The side wall of the cylinder 100 is connected to the inlet pipeline 500 above the sealing ring 104 and is connected to the outlet pipeline 600 below the sealing ring 104. A cleaning pipeline 300 is passed through the top cover plate 101 toward the inside of the filter basket 200. The lower end of the cleaning pipeline 300 extends into the filter basket 200 and is provided with a rotating nozzle 301 at intervals for cleaning the filter basket 200. The upper end of the cleaning pipeline 300 passes through the top cover plate 101 to be connected to the cleaning source and is provided with a throttling stop valve 302.

[0023] The upper end of the cylinder 100 is detachably connected to the top cover plate 101, which is convenient for later disassembly to inspect the filter. The center of the top cover plate 101 is opened, and the cleaning pipeline 300 passes through the top cover plate 101 and is welded to the top cover plate 101 to prevent water leakage. A three-head fan-shaped rotating nozzle 301 is set inside the filter. The structure and principle of the rotating nozzle 301 belong to the existing technology, and there are various shapes and styles. I will not go into details here. Open the throttle stop valve 302 and high-pressure water is introduced into the cleaning pipeline 300 as a cleaning source to rotate the filter basket 200. For flushing, multiple sets of three-headed fan-shaped rotating nozzles 301 can be configured depending on the size of the filter basket 200. The top of the filter basket 200 is screwed to the sealing ring 104 at the top slot 201, and the bottom of the filter basket 200 is fixed via the bottom slot 105. This facilitates maintenance and effectively isolates the liquid containing impurities from the filtered liquid, allowing impurities to settle at the bottom of the cylinder 100. The filter basket 200 can be installed with a filter screen as needed, and the mesh size can be customized. An 80-mesh stainless steel filter screen is suitable for general liquids. The drain valve 403 can be used to drain sewage at any time as needed. Use in processes with a large amount of impurities is more conducive to cleaning the filter basket 200.

[0024] The liquid enters the cylinder 100 of the filter along the inlet pipeline 500, and then enters the interior of the filter basket 200. Impurities are blocked inside the filter basket 200. The liquid penetrates the filter basket 200, enters the annular space between the filter basket 200 and the cylinder 100, and is discharged through the outlet pipeline 600. The impurities inside the filter basket 200 are deposited at the bottom of the cylinder 100. The drain valve 403 is controlled to be switched on and off, and the impurities inside the filter can be discharged through the drain device. The water supply end is connected to the external high-pressure hose quick connector 303. The cleaning pipeline 300, the rotary nozzle 301, the throttle stop valve 302 and the high-pressure hose quick connector 303 constitute the cleaning structure of the filter. By connecting the external water source to the quick connector and opening the throttle stop valve 302, the filter basket 200 can be cleaned.

[0025] The self-cleaning basket filter of the present invention includes a cylinder 100 and a filter basket 200 arranged inside the cylinder 100. The liquid entering the cylinder 100 is filtered by the filter basket 200. A cleaning pipeline 300 and a rotating nozzle 301 are arranged on the inside of the filter basket 200. After the upper end of the cleaning pipeline 300 passes through the top cover plate 101 arranged on the top of the cylinder 100, it is connected to an external cleaning fluid source and a throttling stop valve 302 is set to form a cleaning structure for the filter basket 200. The cylinder 100 is connected to a sewage discharge device at the bottom of the filter basket 200 to discharge impurities deposited at the bottom of the cylinder 100, thereby realizing self-cleaning and sewage discharge functions. There is no need to remove the cover to clean the filter screen, which reduces workload and reduces safety and environmental risks.

[0026] In another technical solution, Figure 1 As shown, the rotating nozzle 301 is provided with three spray channels, each of which is an arc-shaped structure and is tilted outward and downward, which is conducive to automatic rotation and automatic tilted downward spraying operations, thereby improving the efficiency of cleaning the filter basket 200. The three-head fan-shaped rotating nozzle 301 forms a high-pressure fan-shaped water flow, and the rotation of the nozzle can achieve cleaning of the filter basket 200 without dead angles.

[0027] In another technical solution, Figure 1 As shown, a cover ring 106 is fixedly connected to the top of the cylinder 100. The top cover plate 101 is fitted on the upper surface of the cover ring 106 and a sealing ring 103 is provided between the cover ring 106. The outer side of the cover ring 106 extends outward beyond the outer wall of the cylinder 100 and is nested with a buckle 102 connected to the outer side of the top cover plate 101. The buckle 102 is provided with an adjustment bolt 107. The buckle 102 is used to tighten the top cover plate 101 and the cover ring 106 by adjusting the bolt 107. The buckle 102 can be tightened by adjusting the length of the adjustment bolt 107. Multiple groups can be provided as needed to meet the sealing requirements of different pressure levels and ensure a tight seal between the top cover plate 101 and the cover ring 106.

[0028] In another technical solution, Figure 1 As shown, flange connection structures are respectively provided on the end faces of the inlet pipeline 500 and the outlet pipeline 600. Flanges of different specifications can be provided as needed to facilitate the connection of inlet and outlet pipelines.

[0029] In another technical solution, Figure 1-2 As shown, the sewage discharge device includes a first sewage discharge pipeline 404, a residue tank 400, and a second sewage discharge pipeline 405 which are sequentially connected along the sewage discharge direction. The front end of the first sewage discharge pipeline 404 is connected to the bottom of the cylinder 100. The sewage discharge valve 403 is arranged on the first sewage discharge pipeline 404 and is used to open or close the first sewage discharge pipeline 404. Several filter screens are arranged at intervals in the sewage discharge direction in the residue tank 400.

[0030] The bottom sewage discharge of the filter cylinder 100 is connected to the residue tank 400. During the sewage discharge or cleaning process, the impurity-containing liquid enters the residue tank 400 from the first sewage discharge line 404 for filtration, and the impurities are retained in the residue tank 400. The liquid is discharged through the second sewage discharge line 405 on the right side of the residue tank 400. A cover plate is set on the top of the residue tank 400 to facilitate cleaning the inside of the residue tank 400. Two filter screens are set to be pluggable to facilitate cleaning of the filter screens. The first sewage discharge line 404 and the second sewage discharge line 405 of the residue tank 400 are both set at the upper part of the residue tank 400. After the impurity-laden liquid flowing out of the bottom of 100 flows into the residue tank 400, the impurities can be quickly deposited at the bottom of the residue tank 400 due to the reduced flow rate. Combined with the filtering effect of the filter screen, the impurities can be better filtered out. The filtered liquid enters the sewage system, achieving a closed discharge of the liquid. By observing the impurities in the residue tank 400, the cleanliness of the internal filter basket 200 can be judged. If there are a lot of sewage impurities, the filter basket 200 can be rinsed multiple times. The whole device is a closed device. If there is no external water source nearby, external air can be used for flushing in non-flammable and explosive places, and nitrogen can be used in flammable and explosive places. When using gas for flushing, the gas pressure and flow must be controlled, and personal protection must be taken to prevent equipment overpressure or impurities splashing and causing personal injury.

[0031] The residue tank 400 can also be designed as an open design, with two filters installed inside. The first filter 401 has a small mesh size and a large pore size, typically a 10-mesh filter, for filtering larger impurity particles; the second filter 402 has a large mesh size and a small pore size, typically a 50-mesh or 80-mesh filter, for filtering smaller impurity particles. Both filters are inserted into the residue tank 400 and can be removed at any time to clean the tank of impurities.

[0032] In another technical solution, Figure 1As shown, the bottom of the cylinder 100 is tilted downward toward the first sewage pipe 404, forming a conical structure at the bottom of the cylinder 100. Impurities deposited at the bottom of the cone can be quickly discharged without forming accumulation.

[0033] In another technical solution, Figure 1 As shown, the barrel 100 and the filter basket 200 are cylindrical structures, which are beneficial to improving the filtering and cleaning quality.

[0034] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and drawings shown and described herein.

Claims

1. A self-cleaning basket filter, characterized in that: The filter basket is composed of a cylinder body, a cylindrical filter basket is arranged inside the cylinder body, a top cover plate is detachably and sealedly connected to the top of the cylinder body, a sewage discharge device is downwardly connected to the bottom of the cylinder body, a sewage discharge valve is arranged on the sewage discharge device, the upper end of the inner part of the cylinder body is radially inwardly connected to the isolation ring, a top card groove is arranged on the inner top of the isolation ring, and a bottom card groove is arranged on the inner side of the bottom of the cylinder body, the upper end of the filter basket is detachably connected through the top card groove, and the lower end is detachably connected through the bottom card groove, the side wall of the cylinder body is connected with an inlet pipeline above the isolation ring and an outlet pipeline below the isolation ring, a cleaning pipeline is passed through the top cover plate toward the inside of the filter basket, the lower end of the cleaning pipeline extends into the filter basket and rotary nozzles are arranged at intervals for cleaning the filter basket, the upper end of the cleaning pipeline passes through the outside of the top cover plate to be connected to the cleaning source and is provided with a throttling stop valve.

2. The self-cleaning basket filter according to claim 1, characterized in that The rotary nozzle is provided with three spraying channels, each of which is an arc-shaped structure and is inclined outward and downward.

3. The self-cleaning basket filter according to claim 1, characterized in that A circle of cover ring is fixedly connected to the top of the cylinder, the top cover plate is fitted on the upper surface of the cover ring and a sealing ring is provided between the cover ring, the outer side of the cover ring extends outward beyond the outer wall of the cylinder and is nested and connected with the outer side of the top cover plate by a buckle, and an adjusting bolt is provided on the buckle, which realizes the fastening effect of the buckle on the top cover plate and the cover ring through the adjusting bolt.

4. The self-cleaning basket filter according to claim 1, characterized in that Flange connection structures are respectively provided on the end surfaces of the inlet pipeline and the outlet pipeline.

5. The self-cleaning basket filter according to claim 1, wherein: The sewage discharge device includes a first sewage discharge pipeline, a residue tank, and a second sewage discharge pipeline which are sequentially connected along the sewage discharge direction. The front end of the first sewage discharge pipeline is connected through the bottom of the cylinder. The sewage discharge valve is arranged on the first sewage discharge pipeline for opening or closing the first sewage discharge pipeline. Several filter screens are arranged at intervals in the residue tank in the sewage discharge direction.

6. The self-cleaning basket filter according to claim 5, characterized in that The bottom of the cylinder is tilted downward toward the first sewage discharge line to form a conical structure.

7. The self-cleaning basket filter according to claim 1, wherein: The cylinder and the filter basket are respectively cylindrical structures.

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