Shaft cleaning device

Abstract

The invention discloses a shaft cleaning device, and relates to the technical field of shaft cleaning. Comprising a winch, a supporting frame and a cleaning mechanism. The winch is arranged on the ground; the supporting frame is installed on the top of the shaft and rotationally provided with a guide wheel. A steel wire rope of the winch bypasses the guide wheel and is connected to the cleaning mechanism, and the cleaning mechanism is located in the shaft and comprises a supporting guide module, a brushing and sweeping module and a sand suction and discharge module. The brushing and sweeping module and the sand sucking and discharging module are both arranged on the supporting and guiding module. According to the invention, the brushing and sweeping module and the sand suction and discharge module are integrated, impurities can be collected and isolated in real time underground, water purification treatment is completed, and water source waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wellbore cleaning, and particularly to a wellbore cleaning device. Background Art

[0002] During the long-term exploitation or utilization of groundwater wells, impurities such as sediment and rust will gradually accumulate in the wellbore, resulting in a decrease in water volume and equipment wear. Therefore, regular cleaning is required. In the prior art, the wellbore is usually flushed and cleaned manually. Traditional manual cleaning is time-consuming and laborious, and there are high risks for deep wells. The water in the wellbore needs to be completely drained, causing a large amount of water waste. Therefore, there is an urgent need for an efficient and safe mechanical device for cleaning the interior of the wellbore. Summary of the Invention

[0003] The main object of the present invention is to provide a wellbore cleaning device to solve the above problems.

[0004] To achieve the above object, the present invention provides a wellbore cleaning device, including a winch, a support frame, and a cleaning mechanism; the winch is arranged on the ground; the support frame is installed on the top of the wellbore, and a guide wheel is rotatably arranged on the support frame; the steel wire rope of the winch bypasses the guide wheel and is connected to the cleaning mechanism, and the cleaning mechanism is located inside the wellbore. The cleaning mechanism includes a support and guiding module, a brushing module, and a sand suction and discharge module; the brushing module and the sand suction and discharge module are both arranged on the support and guiding module.

[0005] Further, the support and guiding module includes a cylindrical body, a first motor, and a plurality of support members; the first motor is arranged inside the cylindrical body; a first gear is arranged at the output end of the first motor; each support member includes a rack and an arc-shaped support plate arranged at one end of the rack, and the arc-shaped support plate is located outside the cylindrical body; a rack chute is arranged in the radial direction of the cylindrical body, the rack is slidably inserted into the rack chute, and the first gear meshes with the rack.

[0006] Further, an arc-shaped chamfer is arranged at the bottom of the arc-shaped support plate.

[0007] Further, a first pressure sensor is arranged on the side of the arc-shaped support plate in contact with the wellbore.

[0008] Furthermore, the brushing module includes a water inlet chamber, a second motor, an internal gear ring slewing bearing, and a cleaning assembly; the water inlet chamber is arranged inside the lower end of the cylindrical body; the second motor is arranged inside the water inlet chamber, and a second gear is arranged at the output end of the second motor; the fixed ring of the internal gear ring slewing bearing is installed at the lower end of the cylindrical body, and the rotating ring of the internal gear ring slewing bearing meshes with the second gear; a plurality of cleaning assemblies are evenly arranged, and each cleaning assembly includes a mounting plate, a sliding column, a gravity ball, and a brush head; the mounting plate is fixedly installed at the bottom of the rotating ring of the internal gear ring slewing bearing, a sliding hole is arranged on the mounting plate, the sliding column is slidably arranged in the sliding hole, and the gravity ball and the brush head are respectively arranged at both ends of the sliding column; the length of the sliding column is less than the radius of the rotating ring of the internal gear ring slewing bearing.

[0009] Furthermore, the sand suction and discharge module includes a filter chamber, a filter plate, and a water pump. The filter chamber is arranged inside the upper end of the cylindrical body. The filter plate is horizontally placed inside the filter chamber. The water pump is arranged inside the cylindrical body. The water inlet of the water pump is communicated with the water inlet chamber, and the water outlet of the water pump is communicated with the filter chamber and is located below the filter plate. A plurality of water outlet holes are arranged on the side wall of the filter chamber. The water outlet holes are located above the filter plate and are provided with nozzles.

[0010] Furthermore, the filter plate is inclined.

[0011] Furthermore, a second pressure sensor is arranged inside the filter chamber.

[0012] Furthermore, it further includes a controller, and both the winch and the cleaning mechanism are electrically connected to the controller.

[0013] The present invention has the following beneficial effects: (1) Integrating the brushing module and the sand suction and discharge module can collect and isolate impurities in real time underground, complete the purification of water, and reduce water waste.

[0014] (2) The support and guiding module and the brushing module adopt telescopic mechanisms, which can adapt to wellbores with different diameters.

[0015] (3) The remote control and automatic return design improve the operation safety. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the use state of a wellbore cleaning device of the present invention.

[0017] Figure 2 It is a schematic diagram of the cleaning mechanism of a wellbore cleaning device of the present invention.

[0018] Figure 3 It is a schematic diagram of the support and guiding module of a wellbore cleaning device of the present invention.

[0019] Among them, 1 - winch; 2 - support frame; 3 - cleaning mechanism; 4 - shaft; 11 - wire rope; 21 - guide pulley; 31 - sand suction and discharge module; 32 - support and guiding module; 33 - brushing module; 311 - water outlet hole; 312 - nozzle; 313 - filter plate; 314 - filter chamber; 315 - cleaning valve; 316 - water pump; 321 - cylindrical body; 322 - first motor; 323 - first gear; 324 - rack; 325 - arc-shaped support plate; 326 - rack chute; 331 - water inlet chamber; 332 - second motor; 333 - second gear; 334 - internal gear ring slewing bearing; 335 - brush head; 336 - sliding column; 337 - mounting plate; 338 - gravity ball. Detailed implementation manners

[0020] To achieve the above-mentioned purposes and effects, the technical means and structures adopted by the present invention will be described in detail in conjunction with the drawings for the preferred embodiments of the present invention to illustrate their features and functions.

[0021] As Figures 1 - 3 shown, the present invention provides a shaft cleaning device, including a winch 1, a support frame 2, a cleaning mechanism 3 and a controller; both the winch 1 and the cleaning mechanism 3 are electrically connected to the controller; the winch 1 is arranged on the ground; the support frame 2 is installed on the top of the shaft 4, and a guide pulley 21 is rotatably arranged on the support frame 2; the wire rope 11 of the winch 1 bypasses the guide pulley 21 and is connected to the cleaning mechanism 3, and the cleaning mechanism 3 is located inside the shaft 4. The cleaning mechanism 3 includes a support and guiding module 32, a brushing module 33 and a sand suction and discharge module 31; both the brushing module 33 and the sand suction and discharge module 31 are arranged on the support and guiding module 32.

[0022] The support and guiding module 32 includes a cylindrical body 321, a first motor 322 and a plurality of support members; the first motor 322 is arranged inside the cylindrical body 321; a first gear 323 is arranged at the output end of the first motor 322; the support members include a rack 324 and an arc-shaped support plate 325 arranged at one end of the rack 324. The arc-shaped support plate 325 is located outside the cylindrical body 321 for abutting against the inner wall of the shaft 4; as a preferred embodiment, a first pressure sensor is arranged on the side of the arc-shaped support plate 325 in contact with the shaft 4 to detect the contact pressure; as a preferred embodiment, an arc-shaped chamfer can be arranged at the bottom of the arc-shaped support plate 325 to facilitate the downward movement of the arc-shaped support plate 325 along the inner wall of the shaft 4 and avoid jamming; a rack chute 326 is arranged in the radial direction of the cylindrical body 321, and the rack 324 is slidably inserted into the rack chute 326, and the first gear 323 meshes with the rack 324. By driving the first gear 323 to rotate by the first motor 322, the rack 324 is further enabled to slide along the rack chute 326; adopting a gear-rack structure facilitates the same extension distance of all support members and ensures that the cleaning mechanism 3 is always coaxial with the shaft 4.

[0023] The brushing module 33 includes a water inlet chamber 331, a second motor 332, an internal gear ring slewing bearing 334, and a cleaning assembly; the water inlet chamber 331 is arranged inside the lower end of the cylindrical body 321; the second motor 332 is arranged in the water inlet chamber 331, and a second gear 333 is arranged at the output end of the second motor 332; the fixed ring of the internal gear ring slewing bearing 334 is installed at the lower end of the cylindrical body 321, and the rotating ring of the internal gear ring slewing bearing 334 meshes with the second gear 333; a plurality of cleaning assemblies are evenly arranged, and each cleaning assembly includes a mounting plate 337, a sliding column 336, a gravity ball 338, and a brush head 335; the mounting plate 337 is fixedly installed at the bottom of the rotating ring of the internal gear ring slewing bearing 334, a sliding hole is arranged on the mounting plate 337, the sliding column 336 is slidably arranged in the sliding hole, and the gravity ball 338 and the brush head 335 are respectively arranged at both ends of the sliding column 336; the length of the sliding column 336 is less than the radius of the rotating ring of the internal gear ring slewing bearing 334 to ensure that the brush head 335 normally extends under the action of centrifugal force. The second motor 332 drives the second gear 333 to rotate, so that the rotating ring of the internal gear ring slewing bearing 334 rotates. Under the action of centrifugal force, the gravity ball 338 drives the sliding column 336 to slide outwards, so that the brush head 335 is pressed against the inner wall of the wellbore 4 for brushing; since the cleaning assembly is telescopic, the brush head 335 can automatically adjust according to the concave and convex positions on the well wall, effectively ensuring the cleaning effect.

[0024] The sand suction and discharge module 31 includes a filtering chamber 314, a filter plate 313, and a water pump 316. The filtering chamber 314 is arranged inside the upper end of the cylindrical body 321. The filter plate 313 is horizontally arranged in the filtering chamber 314. As a preferred embodiment, the filter plate 313 can be inclined to facilitate the flushing of impurities downward and prevent the filter plate 313 from being blocked; the water pump 316 is arranged in the cylindrical body 321. The water inlet of the water pump 316 is communicated with the water inlet chamber 331, and the water outlet of the water pump 316 is communicated with the filtering chamber 314 and is located below the filter plate 313; a plurality of water outlet holes 311 are arranged on the side wall of the filtering chamber 314. The water outlet holes 311 are located above the filter plate 313 and are provided with nozzles 312; as a preferred embodiment, the nozzles 312 are arranged obliquely downward to flush the impurities on the well wall downward; as a preferred embodiment, a second pressure sensor is arranged in the filtering chamber 314, and the second pressure sensor is located below the filter plate 313 to facilitate the detection of the water pressure in the filtering chamber 314 and prevent the water pump 316 from working overload. As a preferred embodiment, a cleaning valve 315 communicated with the filtering chamber 314 is arranged on the side wall of the cylindrical body 321 to facilitate the cleaning of the impurities in the filtering chamber 314.

[0025] When cleaning the wellbore 4, the controller is used to control the winch 1 to lower the wire rope 11, so that the cleaning mechanism 3 descends to the cleaning position; then the controller is used to control the first motor 322 to rotate forward, so that the arc-shaped support plate 325 abuts against the inner wall of the wellbore 4. When the first pressure sensor detects that the pressure reaches the set value, the first motor 322 stops rotating, so that the cleaning mechanism 3 is fixed in the wellbore 4; then the controller is used to control the second motor 332 to rotate, so that the brush head 335 brushes the inner wall of the wellbore 4. At the same time, the water pump 316 starts to work, sucking sewage from the water inlet cavity 331 to the filter cavity 314. After being filtered by the filter plate 313, the impurities stay in the filter cavity 314, and the clear water sprays out from the nozzle 312 to scour the well wall again, further ensuring the cleaning effect; after brushing for a certain time, the second motor 332 stops rotating, and the first motor 322 rotates in the reverse direction to reset, so that the arc-shaped support plate 325 disengages from the inner wall of the wellbore 4. Subsequently, the winch 1 is continuously controlled to lower the wire rope 11 to continue cleaning downward until the bottom of the well is cleaned. After the cleaning is completed, the winch 1 is controlled to slowly lift the wire rope 11, and the water pump 316 does not stop working and continues to filter until the water pump 316 stops working again when it floats to the water surface.

[0026] The above is only a preferred embodiment of the present invention, not all embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all belong to the protection scope of the present invention.

Claims

1. A wellbore cleaning device, characterized in that, It includes a winch, a support frame and a cleaning mechanism; the winch is arranged on the ground; the support frame is installed at the top of the shaft, and a guide wheel is rotatably arranged on the support frame; the steel wire rope of the winch bypasses the guide wheel and is connected to the cleaning mechanism, the cleaning mechanism is located inside the shaft, and the cleaning mechanism includes a support and guiding module, a brushing module and a sand suction and discharge module; the brushing module and the sand suction and discharge module are both arranged on the support and guiding module.

2. The wellbore cleaning device according to claim 1, characterized in that, The support and guiding module includes a cylindrical body, a first motor and a plurality of supports; the first motor is arranged inside the cylindrical body; a first gear is arranged at the output end of the first motor; the support includes a rack and an arc-shaped support plate arranged at one end of the rack, and the arc-shaped support plate is located outside the cylindrical body; a rack chute is arranged in the radial direction of the cylindrical body, the rack is slidably inserted into the rack chute, and the first gear meshes with the rack.

3. The wellbore cleaning device according to claim 2, characterized in that, An arc-shaped chamfer is arranged at the bottom of the arc-shaped support plate.

4. A wellbore cleaning device according to claim 2 or 3, characterized in that, A first pressure sensor is arranged on one side of the arc-shaped support plate in contact with the shaft.

5. The wellbore cleaning device according to claim 4, wherein The brushing module includes a water inlet cavity, a second motor, an internal gear ring slewing bearing and a cleaning component; the water inlet cavity is arranged inside the lower end of the cylindrical body; the second motor is arranged in the water inlet cavity, and a second gear is arranged at the output end of the second motor; the fixed ring of the internal gear ring slewing bearing is installed at the lower end of the cylindrical body, and the rotating ring of the internal gear ring slewing bearing meshes with the second gear; a plurality of cleaning components are evenly arranged, and each cleaning component includes a mounting plate, a sliding column, a gravity ball and a brush head; the mounting plate is fixedly installed at the bottom of the rotating ring of the internal gear ring slewing bearing, a sliding hole is arranged on the mounting plate, the sliding column is slidably arranged in the sliding hole, and the gravity ball and the brush head are respectively arranged at both ends of the sliding column; the length of the sliding column is less than the radius of the rotating ring of the internal gear ring slewing bearing.

6. The wellbore cleaning device according to claim 5, wherein, The sand suction and discharge module includes a filter cavity, a filter plate and a water pump, the filter cavity is arranged inside the upper end of the cylindrical body, the filter plate is horizontally arranged in the filter cavity, the water pump is arranged inside the cylindrical body, the water inlet of the water pump is communicated with the water inlet cavity, the water outlet of the water pump is communicated with the filter cavity and is located below the filter plate; a plurality of water outlet holes are arranged on the side wall of the filter cavity, and the water outlet holes are located above the filter plate and are provided with nozzles.

7. A wellbore cleaning device according to claim 6, wherein, The filter plate is inclined.

8. The wellbore cleaning device according to claim 7, characterized in that, A second pressure sensor is arranged inside the filter cavity.

9. A wellbore cleaning device according to claim 1 or 8, characterized in that, It also includes a controller, and both the winch and the cleaning mechanism are electrically connected to the controller.

Images