Borehole wall cleaning robot

Abstract

The application discloses a well wall cleaning robot and relates to the field of wall cleaning. The outer side of a preset base body is provided with a guide bearing assembly, the guide bearing assembly supports and guides the working well wall, the end of the preset base body is provided with a docking bearing platform, and the inside of the preset base body is penetrated by a supply pipeline structure. The outer side of the docking bearing platform is nested with a supply flow guide pipe, and the inside of the supply flow guide pipe is nested with a reserved spraying pipe through spring cooperation. The well wall cleaning robot is provided with a vibration supply structure, the vibration supply structure is used for intermittent vibration supply operation of the reserved spraying pipe, the intermittent forward movement is realized in the well wall, the water spraying pipe is not uniformly and continuously pushed forward in the rotating process, but the cycle action of the resident spraying is completed in each rotating period, when the water spraying pipe is in the resident spraying stage, the high-pressure water jet continuously acts on the same area of the well wall, and the stagnation pressure of the jet has a strong stripping effect on the adhering matters.

Description

Technical Field

[0001] This invention relates to the field of well wall cleaning technology, specifically to a well wall cleaning robot. Background Technology

[0002] Well wall cleaning robots are specialized equipment designed to clean the inner walls of filter pipes in reinjection wells, which experience reduced reinjection efficiency after prolonged reinjection. Their purpose is to maintain seepage and promote injection during reinjection. By comparing the effectiveness of these robots with traditional methods for treating blockages, the key mechanisms of blockages and the main factors contributing to reduced reinjection efficiency are analyzed and studied. For example, the patent with announcement number CN223367670U describes a cleaning robot. The cleaning robot includes a robot body and a cleaning module. The cleaning module includes a mounting plate and a cleaning component. The mounting plate is rotatably connected to the robot body around a first rotation axis. The cleaning component is located on the side of the mounting plate facing the bottom of the cleaning robot and is movable back and forth to the mounting plate along a first direction. The first rotation axis is parallel to a second direction, which is the vertical direction of the robot body and the second direction is the horizontal direction of the robot body, thereby improving the cleaning effect of the cleaning robot. For example, patent CN222985174U describes a cleaning robot, which includes a wall-climbing robot and multiple cleaning devices. The multiple cleaning devices are detachably connected to the wall-climbing robot. The wall-climbing robot is used to drive the cleaning devices to move on the tank wall of a storage tank with a wind-resistant ring. The multiple cleaning devices are used to clean the tank wall and the outer wall of the wind-resistant ring respectively, thereby enabling a more comprehensive cleaning of the storage tank. For example, the patent with publication number CN216823288U discloses a cleaning robot that can be used to clean curtain wall glass. It includes: a cleaning unit for cleaning curtain wall glass; a main body for having a walking drive unit that drives the cleaning robot to move through the cleaning unit to clean the curtain wall glass; and a detection unit for being located in front of the main body and / or the cleaning unit, and including at least a front obstacle detection unit, the detection range of which is set to at least cover a portion or local area in front of the cleaning robot. Most of the existing technologies mentioned above improve the overall structure. However, in the operation of existing well wall cleaning robots, the angle between the spray direction and the well wall is basically fixed when the nozzle rotates and sprays. It is difficult for the high-pressure water jet to form multi-angle and multi-layer impact, which limits the peeling effect of the attached materials. Although the existing reciprocating pipe cleaning robot uses a circular cam to combine the rotation of the circular brush with the reciprocating motion, its motion mode is still relatively simple and does not take the intermittent impact effect of the water jet into consideration in the design. It cannot make the nozzle form a pulse impact on the pipe wall while spraying water, resulting in poor peeling effect of the attached materials on the pipe wall. Summary of the Invention

[0003] The purpose of this invention is to provide a well wall cleaning robot to solve the problems mentioned in the background art, where the angle between the water spray direction and the well wall is basically fixed, making it difficult for the high-pressure water jet to form multi-angle and multi-layer impacts, thus limiting the peeling effect on the attached materials. Although existing reciprocating pipe cleaning robots use circular cams to combine the rotation of the circular brush with reciprocating motion, their motion mode is still relatively simple, and the intermittent impact effect of the water jet is not taken into consideration in the design. This makes it impossible for the nozzle to form a pulse impact on the pipe wall while spraying water, resulting in poor peeling effect of the attached materials on the pipe wall.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a well wall cleaning robot, comprising a preset base, a guide bearing component provided on the outer side of the preset base for supporting and guiding the working well wall through the guide bearing component, and a docking bearing platform provided at the end of the preset base, and a supply pipeline structure penetrating the interior of the preset base; a supply guide pipe is nested on the outer side of the docking bearing platform, and a reserved spray pipe is nested on the inner side of the supply guide pipe through a spring, and the reserved spray pipe is connected to the preset supply pipeline structure inside the preset base for water supply; a vibration supply structure is provided on the outer side of the supply guide pipe, and the vibration supply structure performs intermittent vibration supply operation on the reserved spray pipe.

[0005] Furthermore, the vibration supply structure is provided with a drive gear assembly, which is installed on the inner side of the docking support platform and powered by a built-in motor. The outer side of the supply guide pipe is provided with toothed blocks, and the supply guide pipe and the drive gear assembly mesh and rotate with each other. The outer side of the supply guide pipe is fixedly connected with an abutment docking member.

[0006] Furthermore, a movable bearing component is installed on the outer side of the docking support platform via a spring nesting mechanism, and a docking pre-reserved component is fixedly connected to the outer end of the movable bearing component. The outer side of the docking pre-reserved component corresponds to the outer side of the pre-reserved spray pipe. The outer ends of the movable bearing component and the contact docking component are both provided with magnet docking components with the same magnetic poles. A supply nozzle assembly is nested on the outer end of the pre-reserved spray pipe, and the distance between the supply nozzle assembly and the center of the preset base is less than the distance between the guide bearing component and the center of the preset base.

[0007] Furthermore, the supply guide pipe drives the reserved spray pipe to form a rotating structure along the outside of the docking support platform, and when the contact docking part on the outside of the supply guide pipe moves to contact the support movable part, the support movable part is forced to cause the docking reserved part to move in displacement.

[0008] Furthermore, the reserved docking component pushes the reserved spray pipe in contact to form a nested displacement along the inner side of the supply guide pipe, and the supply guide pipe and the reserved spray pipe are nested and docked through the guide component.

[0009] Furthermore, a flow-guiding and pushing mechanism is provided on the outside of the reserved spray pipe to expand the spray range and intensity of the reserved spray pipe; the flow-guiding and pushing mechanism is provided with an oblique abutment, which is nested and connected to the outside of the reserved spray pipe, and the outer end of the oblique abutment is connected to an elastic scraper assembly, and the elastic scraper assembly is connected to the outside of the supply nozzle assembly.

[0010] Furthermore, a return spring is fixedly connected to the lower end of the inclined contact member, and the return spring is connected to the reserved spray pipe.

[0011] Furthermore, during the outward movement of the pre-reserved docking component under force, pressure is applied to the contacting oblique contact component in advance, and the oblique contact component drives the outer elastic scraper assembly and the supply nozzle assembly to move laterally in sync, and the supply nozzle assembly and the reserved spray pipe are connected to each other through a sealing ring.

[0012] Furthermore, the elastic scraper assembly has an inclined structure, and the elastic scraper assembly forms a forward resisting force when it comes into contact with external forces along the forward direction of the preset substrate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This well wall cleaning robot is equipped with a vibration supply structure. This structure provides intermittent vibration supply to a pre-installed spray pipe. As the drive gear assembly drives the supply guide pipe and the pre-installed spray pipe to rotate and perform spraying and rinsing, the contacting parts that dock with the outside of the supply guide pipe, in conjunction with the repulsive force of the corresponding magnetic pole contact parts, push the supporting moving parts and the docking pre-installed parts to displace. This causes the docking pre-installed parts to push the contacting pre-installed spray pipe along the inside of the supply guide pipe, performing intermittent forward motion within the well wall. This means that the water pipe does not advance continuously at a uniform speed during rotation, but rather completes a cyclical action of stationary spraying within each rotation cycle. When the water pipe is in the stationary spraying stage, the high-pressure water jet continuously acts on the same area of ​​the well wall, and the stagnation pressure of the jet produces a strong peeling effect on the deposits. After the water pipe completes one rapid advance, the nozzle moves to the next working area, and the jet impact point shifts. Compared to continuous uniform speed cleaning, this method can more efficiently destroy the interfacial bonding force between the deposits and the well wall. Furthermore, a flow-driving mechanism is provided to expand the spray range and intensity of the reserved spray pipe. As the reserved docking parts move outward under force, they will pre-press the contacting oblique abutment parts, causing the oblique abutment parts to drive the outer elastic scraper assembly and the supply nozzle assembly to move laterally in sync. This allows the supply nozzle assembly to make a small reciprocating motion along the radial direction of the well wall during each rotation, so that the landing points of the high-pressure water jet on the well wall show a spatially staggered, overlapping and complementary distribution, effectively eliminating the cleaning dead angles caused by the single movement trajectory of the nozzle. Furthermore, while the nozzle assembly is being propelled, the elastic scraper assemblies that are interlocked on its outer side will also move accordingly and reciprocate in contact with the well wall. The elastic scraper assemblies have an inclined structure, and the contact force of the elastic scraper assemblies forms a forward resisting force along the forward direction of the preset substrate. During the water spraying process, the elastic scraper assemblies, driven by the lateral swing of the nozzle assembly, reciprocate to scrape the surface of the well wall. On the one hand, this mechanically peels off the dirt that has been loosened by the high-pressure water jet but is still attached to the well wall. On the other hand, the curved surface of the elastic scraper assemblies guides and diffuses the water film generated by the water spray in all directions, further expanding the coverage area of ​​the water jet. The elastic structure of the elastic scraper assemblies allows them to adaptively conform to the slight unevenness of the well wall, ensuring a uniform distribution of scraping force while avoiding hard scratches on the well wall surface. During the lateral swing, the elastic scraper assemblies form a synergistic effect with the high-pressure water jet, which has a significant removal effect on stubborn deposits such as iron and manganese scale and biofilm on the inner wall of the filter pipe, improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the pre-designed substrate of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the reserved spray pipe in this invention; Figure 4 This is a schematic diagram of the half-section structure of the pre-reserved docking component of the present invention; Figure 5 A schematic diagram of the three-dimensional structure of the flow guide tube for this invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the central part of the structure; Figure 7 This is a schematic diagram of the side cross-sectional structure of the guide tube provided by the present invention; Figure 8 A three-dimensional structural schematic diagram of the nozzle assembly is provided for this invention; Figure 9 This is a three-dimensional structural diagram of the movable support component of the present invention; Figure 10 This is a three-dimensional structural diagram of the elastic scraper assembly of the present invention.

[0015] In the diagram: 1. Pre-set base; 2. Guide bearing assembly; 3. Docking bearing platform; 4. Supply guide pipe; 5. Reserved spray pipe; 6. Drive gear assembly; 7. Abutting docking part; 8. Bearing moving part; 9. Docking reserved part; 10. Magnet docking part; 11. Supply nozzle assembly; 12. Angled abutting part; 13. Elastic scraper assembly; 14. Return spring. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figures 1-10 This invention provides the following technical solution: a well wall cleaning robot. To address the issue that the angle between the water jet direction and the well wall is essentially fixed, making it difficult for the high-pressure water jet to create multi-angle, multi-layered impacts, thus limiting the removal of deposits, existing reciprocating pipe cleaning robots, while utilizing circular cams to combine brush rotation and reciprocating motion, still have relatively simple motion modes and do not incorporate the intermittent impact effect of the water jet into their design. This prevents the nozzle from creating a pulsed impact on the pipe wall while spraying water, resulting in poor removal of deposits. The invention discloses a solution including: the outer side of a preset substrate 1... A guide bearing component 2 is provided, which supports and guides the well wall. A docking bearing platform 3 is provided at the end of the preset base 1, and a supply pipeline structure runs through the interior of the preset base 1. A supply guide pipe 4 is nested on the outside of the docking bearing platform 3, and a reserved spray pipe 5 is nested on the inside of the supply guide pipe 4 through a spring. The reserved spray pipe 5 is connected to the preset supply pipeline structure inside the preset base 1 to supply water. A vibration supply structure is provided on the outside of the supply guide pipe 4, and the reserved spray pipe 5 is intermittently vibrated to supply water to the reserved spray pipe 5.

[0018] The vibration supply structure is equipped with a drive gear assembly 6, which is installed inside the docking support platform 3 and powered by a built-in motor. A toothed block is provided on the outer side of the supply guide pipe 4, and the supply guide pipe 4 meshes and rotates with the drive gear assembly 6. An abutting docking member 7 is fixedly connected to the outer side of the supply guide pipe 4. A supporting movable member 8 is installed on the outer side of the docking support platform 3 via a spring nesting mechanism, and a docking reserved member 9 is fixedly connected to the outer end of the supporting movable member 8. The outer side of the docking reserved member 9 corresponds to the outer side of the reserved spray pipe 5. Magnet docking members 10 with the same magnetic poles are provided at the outer ends of both the supporting movable member 8 and the abutting docking member 7. A supply nozzle assembly 11 is nested at the outer end of the reserved spray pipe 5, and the distance between the supply nozzle assembly 11 and the center of the preset base 1 is less than the distance between the guide support assembly 2 and the center of the preset base 1. The spacing between them, as the drive gear assembly 6 drives the supply guide pipe 4 and the reserved spray pipe 5 to perform circumferential rotation spraying and rinsing work, the contacting part 7 that connects with the outside of the supply guide pipe 4 will, in conjunction with the repulsive contact force of the same magnetic pole contact part 10, push the bearing movable part 8 and the docking reserved part 9 to form a displacement, so that the docking reserved part 9 pushes the contacting reserved spray pipe 5 to reciprocate along the inside of the supply guide pipe 4, and make intermittent forward movement in the well wall, so that the water spray pipe does not advance at a uniform speed continuously during the rotation, but completes the cyclic action of stationary spraying in each rotation cycle. When the water spray pipe is in the stationary spraying stage, the high-pressure water jet continuously acts on the same area of ​​the well wall, and the stagnation pressure of the jet produces a strong peeling effect on the attached material. After the water spray pipe completes one rapid advance, the nozzle moves to the next working area, and the jet impact point shifts.

[0019] Example 2: Based on Example 1, a flow-driving mechanism is also disclosed, the specific structure of which is as follows: A flow-driving mechanism is provided on the outside of the reserved spray pipe 5 to expand the spray range and intensity of the reserved spray pipe 5. The flow-driving mechanism is equipped with an oblique contact member 12, which is nested and connected to the outside of the reserved spray pipe 5. An elastic scraper assembly 13 is connected to the outer end of the oblique contact member 12, and the elastic scraper assembly 13 is connected to the outer side of the supply nozzle assembly 11. A return spring 14 is fixedly connected to the lower end of the oblique contact member 12, and the return spring 14 is connected to the reserved spray pipe 5. As the reserved part 9 is subjected to force and moves outward, it will pre-press the contacting oblique contact member 12, causing the oblique contact member 12 to drive the outer elastic scraper assembly 13 and the supply nozzle assembly 11 to move laterally simultaneously, thus supplying... During each rotation, the nozzle assembly 11 also makes a small reciprocating motion radially along the well wall, resulting in a spatially staggered, overlapping, and complementary distribution of the high-pressure water jet's impact points on the well wall. This effectively eliminates cleaning dead zones caused by the nozzle's single movement trajectory. Simultaneously with the advancement of the nozzle assembly 11, the elastic scraper assemblies 13 on its outer sides move accordingly, reciprocating and contacting the well wall. The elastic scraper assemblies 13 have an inclined structure, and the contact force with the external force on the elastic scraper assemblies 13 forms a forward resisting force along the forward direction of the preset base 1. During water spraying, the elastic scraper assemblies 13, driven by the lateral oscillation of the nozzle assembly 11... The reciprocating scraping of the well wall surface mechanically removes the dirt that has been loosened by the high-pressure water jet but still adheres to the well wall. Simultaneously, the curved surface of the elastic scraper assembly 13 guides and diffuses the water film generated by the water jet in all directions, further expanding the coverage area of ​​the water jet. The elastic structure of the elastic scraper assembly 13 allows it to adaptively conform to the minute irregularities of the well wall, ensuring uniform distribution of scraping force while avoiding hard scratches on the well wall surface. During its lateral oscillation, the elastic scraper assembly 13 forms a synergistic effect with the high-pressure water jet, significantly removing stubborn deposits such as iron and manganese scale and biofilm from the inner wall of the filter pipe. In addition to its mechanical scraping function, the elastic scraper assembly 13 also plays a role in guiding and enhancing the flow. When the high-pressure water jet is ejected from the supply nozzle assembly 11 and impacts the well wall, the rebounding water flow spreads outward along the well wall. The elastic scraper assembly 13 is located outside the supply nozzle assembly 11. Its curved profile can redirect and accelerate some of the outwardly spreading water flow, forming a secondary impact to further remove residual dirt. At the same time, the arc-shaped structure of the elastic scraper assembly 13 produces a water-repelling effect when it swings laterally, which significantly expands the coverage area of ​​the water jet on the well wall and improves water use efficiency. With the same amount of water, a longer well section can be cleaned, effectively reducing the water consumption per unit operating length.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A well wall cleaning robot, including a preset base (1), a guide bearing component (2) is provided on the outside of the preset base (1), the guide bearing component (2) supports and guides the working well wall, and a docking bearing platform (3) is provided at the end of the preset base (1), and a supply pipeline structure runs through the interior of the preset base (1); Its features are: The outer side of the docking support platform (3) is fitted with a supply guide pipe (4), and the inner side of the supply guide pipe (4) is fitted with a reserved spray pipe (5) through a spring. The reserved spray pipe (5) is connected to the preset supply pipeline structure inside the preset base (1) for water supply. The outer side of the supply guide pipe (4) is provided with a vibration supply structure, and the reserved spray pipe (5) is subjected to intermittent vibration supply operation through the vibration supply structure.

2. The well wall cleaning robot according to claim 1, characterized in that: The vibration supply structure is provided with a drive gear assembly (6), and the drive gear assembly (6) is installed on the inner side of the docking support platform (3) and powered by a built-in motor. The outer side of the supply guide pipe (4) is provided with a tooth block, and the supply guide pipe (4) and the drive gear assembly (6) mesh and rotate with each other. The outer side of the supply guide pipe (4) is fixedly connected with an abutment docking piece (7).

3. The well wall cleaning robot according to claim 2, characterized in that: The outer side of the docking support platform (3) is fitted with a support movable part (8) by a spring nesting, and the outer end of the support movable part (8) is fixedly connected with a docking reserved part (9). The outer side of the docking reserved part (9) corresponds to the outer side of the reserved spray pipe (5). The outer ends of the support movable part (8) and the contact docking part (7) are both provided with magnet docking parts (10) with the same magnetic pole. The outer end of the reserved spray pipe (5) is nested with a supply nozzle assembly (11), and the distance between the supply nozzle assembly (11) and the center of the preset base (1) is less than the distance between the guide support assembly (2) and the center of the preset base (1).

4. The well wall cleaning robot according to claim 3, characterized in that: The supply guide pipe (4) drives the reserved spray pipe (5) to form a rotating structure along the outside of the docking support platform (3). When the contact docking part (7) on the outside of the supply guide pipe (4) moves to contact the support movable part (8), the support movable part (8) is forced to drive the docking reserved part (9) to form a displacement movement.

5. The well wall cleaning robot according to claim 4, characterized in that: The reserved docking component (9) pushes the reserved spray pipe (5) to form a nested displacement along the inner side of the supply guide pipe (4), and the supply guide pipe (4) and the reserved spray pipe (5) are nested and docked through the guide component.

6. The well wall cleaning robot according to claim 3, characterized in that: The reserved spray pipe (5) is provided with a flow-driving mechanism on the outside, which diffuses the spray range and intensity of the reserved spray pipe (5). The flow-driving mechanism is provided with an oblique contact member (12), and the oblique contact member (12) is nested and connected to the outside of the reserved spray pipe (5). The outer end of the oblique contact member (12) is connected to an elastic scraper assembly (13), and the elastic scraper assembly (13) is connected to the outside of the supply nozzle assembly (11).

7. The well wall cleaning robot according to claim 6, characterized in that: The lower end of the inclined contact member (12) is fixedly connected to a reset spring (14), and the reset spring (14) is connected to the reserved spray pipe (5).

8. The well wall cleaning robot according to claim 7, characterized in that: During the outward movement of the pre-reserved docking part (9) under force, pressure is applied to the contacting oblique contact part (12) in advance, and the oblique contact part (12) drives the outer elastic scraper assembly (13) and the supply nozzle assembly (11) to move laterally in sync, and the supply nozzle assembly (11) and the reserved spray pipe (5) are connected to each other through a sealing ring.

9. The well wall cleaning robot according to claim 8, characterized in that: The elastic scraper assembly (13) has a sloping structure, and the elastic scraper assembly (13) forms a forward resisting force when it comes into contact with external force along the forward direction of the preset substrate (1).

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