Underground automatic backwashing filter

Abstract

The utility model provides an underground automatic backwashing filter, which relates to the technical field of underground filtering equipment, and comprises a filter assembly, the filter assembly is composed of an outer shell, a water inlet pipe, a water outlet pipe and a washing pipe, the water inlet pipe is fixedly communicated with the bottom of the outer shell, and the water outlet pipe is fixedly communicated with the top of the other side of the outer shell; the flushing pipe is fixedly communicated with the tops of the water outlet pipe and the outer shell; a lower baffle is arranged above the water inlet pipe in the outer shell, and under the action of a stirring plate, when the device is used for backwashing, water flow enters the space between the upper baffle and the lower base again through the water outlet pipe and a washing pipe to carry out backwashing on the surface of the filter cartridge, so that impurities in the filter cartridge are separated from the filter cartridge; at the moment, the stirring plate is driven to rotate under the action of water flow, liquid in the outer shell generates vortex through the stirring plate, rapid separation between impurities in the filter cartridge and the filter cartridge is accelerated, and therefore the working efficiency during backwashing is improved.

Description

Technical Field

[0001] This utility model relates to the field of downhole filtration equipment technology, and in particular to an automatic backwashing filter for downhole applications. Background Technology

[0002] During underground operations, such as in mine drainage and underground water injection systems, the water often contains a large amount of impurities such as mud, rock fragments, and minerals.

[0003] If these impurities enter the downhole equipment directly without effective filtration, it will lead to problems such as accelerated equipment wear, pipe blockage, and valve malfunction, seriously affecting the normal operation of downhole operations and the service life of the equipment.

[0004] Traditional downhole filters mostly require manual cleaning or filter element replacement periodically. This is not only inconvenient to operate, but also poses certain safety risks in the harsh environment of downholes. In addition, it is difficult to accurately grasp the cleaning cycle, which can easily lead to filter clogging and failure due to untimely cleaning.

[0005] Therefore, this utility model proposes an automatic backwashing filter for wells. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic downhole backwashing filter.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an automatic backwash filter for downhole wells, comprising:

[0008] A filter assembly comprising a housing, an inlet pipe, an outlet pipe, and a flushing pipe, wherein the inlet pipe is fixedly connected to the bottom of the housing, the outlet pipe is fixedly connected to the top of the other side of the housing, and the flushing pipe is fixedly connected to the top of the outlet pipe and the top of the housing.

[0009] A lower baffle is provided inside the outer casing above the water inlet pipe, and an upper baffle is provided inside the outer casing above the water outlet pipe.

[0010] The turbulence-disrupting component consists of a lower base disposed above a lower baffle. Slider blocks are provided at the top of the lower base and the bottom of the upper baffle. A stirring plate is disposed between the two slider blocks. A filter cylinder is disposed between the lower base and the upper baffle.

[0011] Furthermore, there are three filter cartridges in total, and the three filter cartridges are arranged in a ring, with the included angle between any two adjacent filter cartridges being equal.

[0012] The beneficial effects of adopting the above-mentioned further solution are: under the action of the filter cartridge, the liquid in the filter assembly is filtered, the filtered liquid is discharged from the outlet pipe after passing through the filter cartridge, and the blocked impurities are stored in the filter cartridge.

[0013] Furthermore, the top of the lower base and the bottom of the upper baffle are both provided with annular grooves, and the slider is slidably connected to the lower base or the upper baffle through the annular grooves.

[0014] The beneficial effect of adopting the above-mentioned further solution is that, under the action of the annular chute, the stirring plate is limited by the sliding of the slider, thus preventing the stirring plate from separating from the lower base or upper baffle during use.

[0015] Furthermore, a total of five stirring plates are provided, and all five stirring plates are slidably connected in an annular groove.

[0016] The beneficial effect of adopting the above-mentioned further solution is that, under the action of the stirring plate, when the device performs backwashing, it drives the stirring plate to rotate. At this time, the stirring plate causes the liquid in the outer shell to generate eddies, which accelerates the rapid separation of impurities in the filter cartridge from the filter cartridge, thereby improving the working efficiency during backwashing.

[0017] Furthermore, a rinsing hole is provided on the upper baffle, and the rinsing pipe passes through the outer shell and communicates with the rinsing hole.

[0018] The beneficial effect of adopting the above-mentioned further solution is that, under the action of the flushing hole, the top of the water outlet pipe is connected to the upper baffle through the flushing pipe. At this time, during the backwashing process, the liquid in the water outlet pipe is divided into two streams. One stream is directly introduced into the outer shell from the water outlet pipe, and the other stream is introduced into the interior from the top of the outer shell through the flushing pipe.

[0019] Furthermore, a water inlet hole is provided on the lower baffle between the three filter cylinders.

[0020] The beneficial effect of adopting the above-mentioned further solution is that, since a certain gap is reserved between the lower baffle and the lower base, a certain amount of liquid can be stored in the reserved space under the action of the water inlet hole, so that the liquid can enter the three filter cartridges at the same time for filtration, avoiding uneven water flow that leads to different utilization rates of the three filter cartridges.

[0021] Furthermore, a mounting plate is provided at the bottom of the outer casing, and mounting holes are provided on the mounting plate. The mounting holes are arranged in a ring, and the included angle between two adjacent mounting holes is equal.

[0022] The beneficial effect of adopting the above-mentioned further solution is that, under the action of the mounting plate, the outer casing is fixed in the designated position after passing through the mounting hole with the mounting bolt, thus preventing the filter assembly from shifting during use.

[0023] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0024] In this invention, under the action of the stirring plate, when the device performs backwashing, the water flow re-enters between the upper baffle and the lower base through the water outlet pipe and the flushing pipe, backwashing the surface of the filter cylinder, causing the impurities inside to separate from the filter cylinder. At this time, the water flow drives the stirring plate to rotate, and the stirring plate causes the liquid inside the outer shell to generate eddies, accelerating the rapid separation of impurities inside the filter cylinder from the filter cylinder, thereby improving the working efficiency during backwashing. Attached Figure Description

[0025] Figure 1 This is a front view of an automatic backwash filter for wells according to this utility model;

[0026] Figure 2 This is a cross-sectional view of an automatic backwashing filter for wells according to the present invention;

[0027] Figure 3 This is a structural diagram of a turbulence-inducing component in an automatic backwashing filter for wells according to this utility model;

[0028] Figure 4 This is a cross-sectional view of an automatic backwashing filter for wells according to the present invention.

[0029] Attached Figure

[0030] 1. Filter assembly; 11. Housing; 12. Inlet pipe; 13. Mounting plate; 131. Mounting hole; 14. Outlet pipe; 15. Flushing pipe; 16. Lower baffle; 161. Inlet hole; 17. Upper baffle; 171. Flushing hole;

[0031] 2. Baffle assembly; 21. Lower base; 22. Annular groove; 23. Slider; 24. Stirring plate; 25. Filter cylinder. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1-4 As shown, this utility model provides a technical solution: an automatic backwash filter for downhole wells, comprising:

[0034] The filter assembly 1 consists of a housing 11, an inlet pipe 12, an outlet pipe 14, and a flushing pipe 15. The inlet pipe 12 is fixedly connected to the bottom of the housing 11, the outlet pipe 14 is fixedly connected to the top of the other side of the housing 11, and the flushing pipe 15 is fixedly connected to the top of the outlet pipe 14 and the top of the housing 11.

[0035] A lower baffle 16 is provided inside the outer casing 11 above the water inlet pipe 12, and an upper baffle 17 is provided inside the outer casing 11 above the water outlet pipe 14.

[0036] The turbulence-disrupting component 2 consists of a lower base 21 positioned above the lower baffle 16. Slider blocks 23 are located at the top of the lower base 21 and the bottom of the upper baffle 17. A stirring plate 24 is positioned between two sliders 23. Three filter cylinders 25 are positioned between the lower base 21 and the upper baffle 17, arranged in a ring shape with equal included angles between adjacent filter cylinders 25. A rinsing hole 171 is provided on the upper baffle 17. A rinsing pipe 15 passes through the outer casing 11 and connects to the rinsing hole 171. The upper baffle 16... A water inlet hole 161 is provided between the three filter cylinders 25. Under the action of the stirring plate 24, when the device is backwashed, the water flows through the water outlet pipe 14 and the flushing pipe 15 and re-enters between the upper baffle 17 and the lower base 21 to backwash the surface of the filter cylinder 25, so that the impurities inside are separated from the filter cylinder 25. At this time, the water flow drives the stirring plate 24 to rotate. The stirring plate 24 causes the liquid inside the outer shell 11 to generate a vortex, which accelerates the rapid separation of impurities inside the filter cylinder 25 from the filter cylinder 25, thereby improving the working efficiency during backwashing.

[0037] Furthermore, such as Figure 2 - Figure 4 As shown: There are five stirring plates 24 in total, and all five stirring plates 24 are slidably connected in the annular groove 22. Under the action of the stirring plates 24, when the device performs backwashing, the stirring plates 24 are driven to rotate. At this time, the stirring plates 24 cause the liquid in the outer shell 11 to generate eddies, which accelerates the separation of impurities in the filter cylinder 25 from the filter cylinder 25. Furthermore, by setting five stirring plates 24, the generation of eddies inside the outer shell 11 is accelerated, thereby improving the working efficiency of backwashing.

[0038] The above solution also suffers from poor stability of the stirring plate 24, such as... Figure 3 As shown: In this solution, the top of the lower base 21 and the bottom of the upper baffle 17 are both provided with annular grooves 22. The slider 23 is slidably connected to the lower base 21 or the upper baffle 17 through the annular grooves 22. Under the action of the annular grooves 22, the slider 23 slides and limits the stirring plate 24 to prevent the stirring plate 24 from separating from the lower base 21 or the upper baffle 17 during use.

[0039] The above solutions also have the problem of displacement of the outer shell 11 during use, such as... Figure 4 As shown: In this solution, the bottom of the outer casing 11 is provided with a mounting plate 13, and the mounting plate 13 is provided with mounting holes 131. The mounting holes 131 are arranged in a ring, and the included angle between two adjacent mounting holes 131 is equal. Under the action of the mounting plate 13, the outer casing 11 is fixed in the designated position after passing through the mounting holes 131 with mounting bolts, so as to prevent the filter assembly 1 from being displaced during use.

[0040] Working principle: such as Figure 1-4 As shown, the device is first fixed in the designated position by bolts through the mounting hole 131. Then, the water inlet mechanism is fixedly connected to the water inlet pipe 12, and the water outlet mechanism is fixedly connected to the water outlet pipe 14. After the connection is completed, the water inlet mechanism is turned on, and the water flows into the interior of the outer shell 11 through the water inlet pipe 12 and then into the filter cylinder 25 through the water inlet hole 161. Under the action of the filter cylinder 25, the filtered liquid is discharged through the water outlet pipe 14. When backwashing, the backwashing function of the water outlet mechanism is turned on, so that the liquid flows back into the interior of the outer shell 11 through the water outlet pipe 14 and the flushing pipe 15. At this time, under the action of the stirring plate 24, when the liquid comes into contact with the stirring plate 24, a vortex is generated, which accelerates the removal of impurities attached to the filter cylinder 25 from the filter cylinder 25. The removed impurities are discharged from the bottom of the filter cylinder 25 through the water inlet hole 161 and then from the water inlet pipe 12.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A downhole self-backflushing filter, characterized in that, Include: Filter assembly (1), the filter assembly (1) is constituted by outer shell (11), water inlet pipe (12), water outlet pipe (14) and flush pipe (15), water inlet pipe (12) is fixedly connected in the bottom of outer shell (11), water outlet pipe (14) is fixedly connected in the top of the other side of outer shell (11), flush pipe (15) is fixedly connected in the top of water outlet pipe (14) and outer shell (11); The lower baffle (16) is arranged above the water inlet pipe (12) in the outer shell (11), and the upper baffle (17) is arranged above the water outlet pipe (14) in the outer shell (11); Turbulence assembly (2), the lower base (21) is arranged above the lower baffle (16), the top of the lower base (21) and the bottom of the upper baffle (17) are provided with sliding blocks (23), the stirring plate (24) is arranged between the two sliding blocks (23), and the filter cartridge (25) is arranged between the lower base (21) and the upper baffle (17).

2. A downhole self-backwashing filter according to claim 1, characterized in that: The filter cartridge (25) is provided with three, and the three filter cartridges (25) are arranged in a ring shape, and the included angle between adjacent two filter cartridges (25) is equal.

3. The automatic backwash filter for use downhole as defined in claim 1, wherein: The top of the lower base (21) and the bottom of the upper baffle (17) are provided with annular sliding grooves (22), and the sliding blocks (23) are slidably connected to the lower base (21) or the upper baffle (17) through the annular sliding grooves (22).

4. The downhole self-backwashing filter of claim 1, wherein: The stirring plate (24) is provided with five, and the five stirring plates (24) are slidably connected in the annular sliding groove (22).

5. The downhole self-backwashing filter of claim 1, wherein: The upper baffle (17) is provided with a flush hole (171), and the flush pipe (15) is communicated with the flush hole (171) after penetrating the outer shell (11).

6. The downhole self-backwashing filter of claim 1, wherein: The lower baffle (16) is provided with a water inlet hole (161) between the three filter cartridges (25).

7. The downhole self-backwashing filter of claim 1, wherein: The bottom of the outer shell (11) is provided with a mounting disc (13), the mounting disc (13) is provided with a mounting hole (131), the mounting hole (131) is arranged in a ring shape, and the included angle between adjacent two mounting holes (131) is equal.

Images