Self-cleaning type filtering device

Abstract

The invention relates to a self-cleaning type filtering device which comprises a cylinder body, a water inlet and a water outlet are oppositely formed in the side wall of the cylinder body, a filter screen is fixedly connected to the interior of the cylinder body, and a flow guide structure for guiding liquid into the filter screen from the water inlet is arranged in the cylinder body. The inner side wall of the filter screen abuts against and is slidably connected with a cleaning brush, and a driving structure for driving the cleaning brush to move is arranged in the cylinder body. The filter cylinder has the effects of cleaning the filter screen in the filter cylinder and reducing the condition that the filter cylinder is frequently started and stopped due to blockage.

Description

Technical Field

[0001] The present application relates to the field of petroleum gathering and transportation equipment, and in particular to a self-cleaning filtering device. Background Art

[0002] At present, in the sewage treatment system, the delivery pressure is guaranteed by the centrifugal pump. The force of the centrifugal pump relies on its own motor to provide corresponding power support for the impeller and blades, so that the centrifugal force generated by the high-speed rotation of the impeller and blades can complete the liquid delivery. When treating sewage, a large amount of sewage can be pulled together through a specific high-power centrifugal pump, so that the sewage flows into a specific treatment area to complete the sewage drainage operation. Then, with the help of the centrifugal pump, the convenience of sewage treatment can be improved and the stability of the sewage traction process can be guaranteed.

[0003] However, during the operation of the centrifugal pump, since the medium being transported contains a lot of debris, it is very easy to cause the filter screen in the filter cylinder to be blocked, causing the centrifugal pump to fail to work normally. The pump can only be stopped, the filter cylinder opened, the filter screen taken out, and the debris cleaned up before it can be restarted and put into production, resulting in frequent start and stop of the operating equipment. If the filter cylinder is seriously blocked or not cleaned in time, it will also cause insufficient liquid supply downstream. In severe cases, debris enters the downstream and blocks the water nozzle, causing changes in the operating conditions of the oil well, seriously affecting the normal production of the oil well. Summary of the invention

[0004] In order to clean the filter screen inside the filter cylinder and reduce the frequent start and stop of the filter cylinder due to blockage, the present application provides a self-cleaning filter device.

[0005] The present application provides a self-cleaning filter device, which adopts the following technical solution:

[0006] A self-cleaning filtering device comprises a cylinder body, the side walls of the cylinder body are respectively provided with a water inlet and a water outlet, a filter screen is fixedly connected to the inside of the cylinder body, a guide structure is arranged inside the cylinder body to guide liquid from the water inlet to the inside of the filter screen, a cleaning brush is slidably connected to the inner side wall of the filter screen, and a driving structure is arranged inside the cylinder body to drive the cleaning brush to move.

[0007] Optionally, the driving structure includes a vertically arranged rotating shaft, the rotating shaft is rotatably connected to the cylinder body, the rotating shaft is fixedly connected to an impeller at a position relative to the water inlet, the impeller and the rotating shaft are coaxially arranged, and the rotating shaft is provided with a connecting component at a position relative to the cleaning brush.

[0008] Optionally, the connecting assembly includes two support frames coaxially arranged opposite to the side wall of the rotating shaft, the two support frames are respectively located at two ends of the cleaning brush, and the two support frames are fixedly connected to the cleaning brush.

[0009] Optionally, a baffle is fixedly connected to the cylinder body at the water inlet, and the baffle is arranged at an angle, and the baffle can guide the liquid at the water inlet.

[0010] Optionally, a bearing is provided at a position where the bottom end of the rotating shaft is connected relative to the cylinder body, and the rotating shaft and the cylinder body are connected via the rotating shaft.

[0011] Optionally, an upper baffle is fixedly connected to the inside of the cylinder body, and the upper baffle is fixedly connected to the top wall of the filter screen. A lower baffle is fixedly connected to the inside of the cylinder body, and the lower baffle is fixedly connected to the bottom wall of the filter screen. A distance is left between the lower baffle and the bottom wall of the cylinder body, and a sewage pipe is provided at the bottom of the side wall of the cylinder body below the lower baffle.

[0012] Optionally, the guide structure includes a guide wall located above the filter, the top of the guide wall is fixedly connected to the cylinder body, the bottom of the guide wall is fixedly connected to the upper baffle, and a guide channel is opened inside the cylinder body at the position of the outside of the filter and the water outlet.

[0013] Optionally, a through hole is opened at the top of the cylinder body, a cover is provided inside the cylinder body at a position relative to the through hole, the cover can completely cover the through hole, and an opening structure is provided inside the cylinder body at a position relative to the cover.

[0014] Optionally, the opening structure includes a support frame fixedly connected to the cylinder body, the support frame is located above the cover, a lead screw is threadedly connected to the support frame, and the lead screw is rotatably connected to the cover.

[0015] Optionally, the lead screw is located above the support frame and is fixedly connected to a handle.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. Liquid enters the cylinder from the water inlet, and through the diversion of the diversion structure, the liquid drives the impeller to rotate, and the impeller drives the rotating shaft to rotate, so that the rotating shaft drives the cleaning brush inside the filter in the cleaning device to clean the filter, thereby facilitating the automatic cleaning of the filter inside the cylinder.

[0018] 2. The liquid entering from the water inlet is guided by the provided guide wall, the guided liquid enters the interior of the filter screen for filtration, and the liquid filtered by the filter screen enters the discharge port through the guide channel for discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a self-cleaning filter device in an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the internal structure of a self-cleaning filter device in an embodiment of the present application.

[0021] Figure 3 It is a structural schematic diagram of a cylinder body of a self-cleaning filtering device in an embodiment of the present application.

[0022] Figure 4 It is a structural schematic diagram of a cleaning device of a self-cleaning filter device in an embodiment of the present application.

[0023] Explanation of the reference numerals: 1. cylinder body; 11. water inlet; 12. water outlet; 121. baffle; 13. drain pipe; 14. flow chamber; 15. filter chamber; 16. impurity chamber; 2. sealing device; 21. cover; 22. support frame; 23. screw; 24. handle; 25. limit ring; 3. filter device; 31. filter screen; 32. upper baffle; 33. lower baffle; 4. guide structure; 41. guide wall; 42. guide channel; 5. cleaning device; 51. rotating shaft; 52. support plate; 53. cleaning brush; 54. impeller. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0026] The following is combined with Figure 1-4 This application is described in further detail.

[0027] The present application embodiment discloses a self-cleaning filter device. Figure 1 , Figure 2A self-cleaning filtering device includes a cylinder body 1, the top of the cylinder body 1 is provided with an opening, the side walls of the cylinder body 1 are relatively provided with a water inlet 11 and a water outlet 12, and the inside of the cylinder body 1 is provided with a sealing device 2 for closing the top opening, the inside of the cylinder body 1 is also provided with a filtering device 3, the inside of the cylinder body 1 is provided with a guide structure 4 for guiding the liquid entering through the water inlet 11 to the inside of the filtering device 3, and the inside of the filtering device 3 is provided with a cleaning device 5 for cleaning the filtering device 3.

[0028] Reference Figure 2 , Figure 3 The sealing device 2 includes a cover 21 horizontally arranged on the inner side wall of the cylinder body 1 relative to the position of the opening, and the cover 21 abuts against the inner side wall of the cylinder body 1. A support frame 22 is fixedly connected to the top of the cylinder body 1 relative to the position of the opening, and the support frame 22 is located above the cover 21. A lead screw 23 is vertically arranged on the support frame 22, and the lead screw 23 completely penetrates the support frame 22, and the lead screw 23 and the support frame 22 are threadedly connected, and the bottom end of the lead screw 23 is relatively abutted and relatively rotatably connected with the cover plate. A handle 24 is coaxially fixedly connected to the top of the lead screw 23, and the operator drives the lead screw 23 to rotate by turning the handle 24, so that the lead screw 23 moves up and down along the vertical direction on the support frame 22, thereby driving the cover 21 to move up and down inside the cylinder body 1, so as to facilitate the adjustment of the opening and closing of the cover 21.

[0029] The inner side wall of the rod body is fixedly connected to a limiting ring 25 relative to the position of the cover 21. The limiting ring 25 and the cover 21 are coaxially arranged, and the vertical projections of the limiting ring 25 and the cover 21 partially overlap, so that the bottom of the cover 21 can abut against the limiting ring 25, and the downward movement of the cover 21 is limited by the limiting ring 25.

[0030] Reference Figure 2 , Figure 4 The filter device 3 includes a vertically arranged filter screen 31, which is an annular structure, and the axis of the filter screen 31 is coaxially arranged between the cover 21. An upper baffle 32 is horizontally arranged inside the cylinder body 1 relative to the top of the filter screen 31. The upper baffle 32 is an annular structure coaxially arranged with the filter screen 31, and the upper baffle 32 is fixedly connected to the top wall of the filter screen 31. A lower baffle 33 is horizontally arranged inside the cylinder body 1 relative to the bottom end of the filter screen 31. The lower baffle 33 is an annular structure coaxially arranged with the filter screen 31, and the lower baffle 33 is fixedly connected to the bottom wall of the filter screen 31, and a distance is left between the bottom wall of the lower baffle 33 and the inner bottom wall of the cylinder body 1. The side wall of the cylinder body 1 is located below the lower baffle 33 and is fixedly connected with a sewage pipe 13. The sewage pipe 13 connects the inside of the cylinder body 1 with the outside world, so as to discharge impurities filtered by the filter screen 31.

[0031] The interior of the cylinder body 1 is divided into a flow chamber 14 located above the upper baffle plate 32 , a filter chamber 15 located between the upper baffle plate 32 and the lower baffle plate 33 , and an impurity chamber 16 located below the lower baffle plate 33 by the upper baffle plate 32 and the lower baffle plate 33 .

[0032] The cleaning structure includes a vertically arranged rotating shaft 51, which is coaxially arranged with the filter screen 31, and a bearing is coaxially arranged at the bottom end of the rotating shaft 51, and the rotating shaft 51 is installed inside the cylinder body 1 through the bearing. The rotating shaft 51 is coaxially arranged with support plates 52 on the upper and lower surfaces of the filter screen 31, respectively. The support plate 52 is a circular ring structure, and the support plate 52 is fixedly connected to the rotating shaft 51. A cleaning brush 53 is vertically arranged between the two opposing support plates 52, the top end of the cleaning brush 53 is fixedly connected with the support plate 52 located above, and the bottom end of the cleaning brush 53 is fixedly connected with the support plate 52 located below. The side wall of the cleaning brush 53 abuts against the inner side wall of the filter screen 31 and is relatively slidably arranged, and the side wall of the filter screen 31 can be cleaned by the cleaning brush 53.

[0033] The rotating shaft 51 is located at the water inlet 11 of the cylinder body 1 and is fixedly connected to an impeller 54. The impeller 54 and the rotating shaft 51 are coaxially arranged, and liquid enters the interior of the cylinder body 1 from the water inlet 11, pushes the impeller 54 to rotate, and is discharged from the water outlet 12, so that the liquid pushes the impeller 54 to rotate, and the impeller 54 drives the rotating shaft 51 to rotate, so that the rotating shaft 51 drives the cleaning brush 53 to move inside the filter 31 to clean the filter 31.

[0034] The cylinder body 1 is fixedly connected to the water inlet 11 with a baffle 121, which is a disc-shaped structure and is tilted at an angle of 45°. The baffle 121 guides the liquid entering the water inlet 11, thereby increasing the liquid driving the impeller 54 to rotate, making it easier for the cleaning brush 53 to clean the filter 31.

[0035] The guide structure 4 includes a guide wall 41 fixed inside the cylinder body 1. The guide wall 41 is a circular ring structure, and the guide wall 41 is located above the filter screen 31. The top of the guide wall 41 is fixedly connected to the cylinder body 1, and the bottom of the guide wall 41 is fixedly connected to the upper baffle 32. The water inlet 11 and the water outlet 12 are separated by the guide wall 41, and the liquid entering from the water inlet 11 enters the interior of the filter screen 31 through the guidance of the guide wall 41 for filtering operation.

[0036] A guide channel 42 is provided inside the cylinder body 1 on one side of the filter screen 31 near the water outlet 12. The guide channel 42 relatively connects the interior of the filter chamber 15 with the water outlet 12, so that the liquid enters the interior of the flow chamber 14 from the water inlet 11, enters the interior of the filter screen 31 after being guided by the guide wall 41, and is filtered by the filter screen 31. The filtered liquid is discharged to the outside of the filter screen 31 and is discharged from the water outlet 12 through the guide channel 42.

[0037] The implementation principle of a self-cleaning filter device in an embodiment of the present application is as follows: liquid enters the interior of the cylinder 1 from the water inlet 11, and the impeller 54 is driven to rotate by the water flow, so that the impeller 54 drives the rotating shaft 51 to rotate, so that the rotating shaft 51 drives the cleaning brush 53 located inside the filter 31 to rotate, and the cleaning brush 53 cleans the impurities located on the filter 31. After the liquid enters the filter 31, it is filtered by the filter 31 and enters the guide channel 42, and then is discharged from the water outlet 12.

[0038] In the present invention, the term "plurality" means at least two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A self-cleaning filtering device, comprising a cylinder (1), wherein the side walls of the cylinder (1) are respectively provided with a water inlet (11) and a water outlet (12), wherein: A filter screen (31) is fixedly connected to the interior of the cylinder body (1), a flow guide structure (4) for guiding liquid from the water inlet (11) to the interior of the filter screen (31) is provided inside the cylinder body (1), a cleaning brush (53) is slidably connected to the inner side wall of the filter screen (31), and a driving structure for driving the cleaning brush (53) to move is provided inside the cylinder body (1).

2. A self-cleaning filter device according to claim 1, characterized in that: The driving structure comprises a vertically arranged rotating shaft (51), the rotating shaft (51) being rotationally connected to the cylinder body (1), the rotating shaft (51) being fixedly connected to an impeller (54) at a position relative to the water inlet (11), the impeller (54) being coaxially arranged with the rotating shaft (51), and a connecting component being arranged at a position of the rotating shaft (51) relative to the cleaning brush (53).

3. A self-cleaning filter device according to claim 2, characterized in that: The connecting assembly comprises two support frames (22) coaxially arranged opposite to the side wall of the rotating shaft (51), the two support frames (22) are respectively located at two ends of the cleaning brush (53), and the two support frames (22) are fixedly connected to the cleaning brush (53).

4. A self-cleaning filter device according to claim 2, characterized in that: The cylinder body (1) is fixedly connected to a baffle (121) at a position located at the water inlet (11); the baffle (121) is arranged in an inclined manner, and the baffle (121) can guide the liquid in the water inlet (11).

5. A self-cleaning filter device according to claim 2, characterized in that: A bearing is provided at a position where the bottom end of the rotating shaft (51) is connected relative to the cylinder body (1), and the rotating shaft (51) and the cylinder body (1) are connected via the rotating shaft (51).

6. A self-cleaning filter device according to claim 1, characterized in that: An upper baffle (32) is fixedly connected inside the cylinder body (1), and the upper baffle (32) is fixedly connected to the top wall of the filter screen (31). A lower baffle (33) is fixedly connected inside the cylinder body (1), and the lower baffle (33) is fixedly connected to the bottom wall of the filter screen (31). A spacing is left between the lower baffle (33) and the bottom wall of the cylinder body (1), and a sewage pipe (13) is provided at the bottom of the side wall of the cylinder body (1) below the lower baffle (33).

7. A self-cleaning filter device according to claim 6, characterized in that: The flow guide structure (4) comprises a flow guide wall (41) located above the filter screen (31), the top end of the flow guide wall (41) is fixedly connected to the cylinder body (1), the bottom end of the flow guide wall (41) is fixedly connected to the upper baffle (32), and a flow guide channel (42) is provided inside the cylinder body (1) at a position between the outside of the filter screen (31) and the water outlet (12).

8. The self-cleaning filter device according to claim 1, characterized in that: A through hole is provided at the top end of the cylinder body (1); a cover (21) is provided inside the cylinder body (1) at a position relative to the through hole; the cover (21) is capable of completely covering the through hole; and an opening structure is provided inside the cylinder body (1) at a position relative to the cover (21).

9. A self-cleaning filter device according to claim 8, characterized in that: The opening structure comprises a support frame (22) fixedly connected to the cylinder body (1), the support frame (22) being located above the sealing cover (21), a lead screw (23) being threadedly connected to the support frame (22), and the lead screw (23) being rotatably connected to the sealing cover (21).

10. A self-cleaning filter device according to claim 9, characterized in that: The lead screw (23) is located above the support frame (22) and is fixedly connected to a handle (24).

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