CN208203225U - A kind of cleaning device for petroleum rod inner wall - Google Patents

Abstract

The utility model relates to a cleaning device for the inner wall of a petroleum drill pipe, which mainly consists of an outer casing, an O-shaped sealing ring, a thrust bearing, an inner spring retaining ring, a bolt, a rotating core, a fastening sleeve, a rolling bearing, a bearing retaining ring, a rotary nozzle and a brush head. composition. The rotating core is housed in the casing, and its protruding part fits between two thrust bearings and is axially positioned with a circlip. The outer jacket and the fastening sleeve are connected together by bolts, and rolling bearings are installed in the groove of the fastening sleeve. The rotating nozzle and the rotating core, the brush head and the rotating nozzle are all threaded. The utility model hits the inner wall of the drill pipe with the high-pressure water through the nozzle at a certain angle. Due to the reaction force of the inner wall of the drill pipe, the rotating nozzle produces rotational movement and axial movement, and drives the whole device to advance along the inner wall of the drill pipe, and at the same time drives the brush head to rotate. To achieve the purpose of cleaning. The utility model has the advantages of simple structure, convenient disassembly and maintenance, convenient and quick use, time-saving and labor-saving, and low cost, and is suitable for cleaning the inner walls of oil drill pipes with different diameters.

Description

A cleaning device for oil drill pipe inner wall

technical field

The utility model belongs to the field of pipeline cleaning, in particular to a cleaning device for the inner wall of an oil drill pipe.

Background technique

After a period of use, the oil drill pipe will have a dirt layer attached to the inner wall, and a rust layer will also be formed due to oxidation. During the maintenance process of oil drill pipes, due to the thin and long characteristics of the pipes, it brings a lot of inconvenience to the cleaning of the inner wall of the drill pipes. Some existing cleaning devices have complex structures, cannot adapt to various drill pipes with different specifications, and have poor stability and general cleaning effect.

Contents of the invention

The purpose of the utility model is to overcome the shortcomings of the existing cleaning technology for the inner wall of the drill pipe, and provide a cleaning device for the inner wall of the oil drill pipe, which can effectively clean the dirt on the inner wall of the oil drill pipe, is efficient, saves time and effort, and improves the cleaning effect of the inner wall of the drill pipe .

The technical scheme adopted by the utility model is: a cleaning device for the inner wall of a petroleum drill pipe, which mainly consists of an outer casing, an O-shaped sealing ring, a thrust bearing, an inner spring retaining ring, a hexagonal bolt, a rotating core, a fastening sleeve, a rolling bearing, and a bearing retainer. It is composed of ring, rotating nozzle and brush head. The rotating core is sleeved in the outer casing, and its protruding part is assembled between two thrust bearings and is closely positioned together with an inner spring retaining ring to prevent the axial movement of the rotating core in the outer casing; the outer casing and The tightening sleeves are connected together by hexagonal bolts, and the rolling bearings are installed in the grooves of the tightening sleeves, and are positioned with a bearing retaining ring; the rotating nozzle and the rotating core are threaded; the rotating nozzle (10) A plurality of nozzles are evenly distributed. The nozzle consists of a curved section A and a straight section B. The axis of the straight section B is perpendicular to the axis of the nozzle (10), and the axis of the curved section A is at a certain angle to the axis of the nozzle. The water flow acts on the inner wall of the drill pipe at a certain angle, and its reaction force causes the rotary nozzle (10) to produce rotational movement and axial movement. The brush head and the rotating spray head are threadedly connected; at the same time, the rotating core is a straight-through pipe, the brush head is cylindrical, and bristles are arranged around the ring surface of the brush head, and the internal thread at the end of the brush head and the rotating The rotation direction of the nozzle is opposite to the rotation direction of the nozzle. The diameter of the cylinder of the brush head can be set according to the size of the pipe to meet the needs of drill pipes with different diameters. The brush head is driven by the rotary nozzle to rotate together. The high-pressure water jetted from the rotary nozzle acts on the inner wall of the drill pipe at a certain angle, and its reaction force makes the rotary nozzle produce rotational movement and axial movement, and drives the whole device to advance along the inner wall of the drill pipe. , At the same time, it also drives the brush head to rotate to achieve the purpose of cleaning.

Beneficial effects of the utility model: The utility model provides a cleaning device for the inner wall of the oil drill pipe, which has a simple structure. The high-pressure water acts on the inner wall of the drill pipe at a certain angle through the rotary nozzle, and the rotary nozzle produces rotational movement and axial rotation due to the reaction force. The movement drives the whole device to advance along the drill pipe, and at the same time drives the brush head to rotate and clean the drill pipe. The O-shaped sealing ring between the rotor core and the casing greatly ensures the sealing effect, and the combination of thrust bearing and rolling bearing improves the stability of the rotary nozzle in the axial and radial directions. The size of the brush head can be set according to the diameter of the drill pipe, and the brush can be exchanged at any time, which can achieve the effect of secondary cleaning after the rotary nozzle is sprayed with water, which not only improves the cleaning effect but also achieves the purpose of saving water resources.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a three-dimensional view of the nozzle of the present invention.

In the figure: 1. Jacket; 2. O-shaped sealing ring; 3. Thrust bearing; 4. Inner spring retaining ring; 5. Hexagonal bolt; Circle; 10. Rotating nozzle; 11. Brush head.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

As shown in Figure 1, a device for cleaning the inner wall of an oil drill pipe mainly includes an outer casing 1, an O-ring 2, a thrust bearing 3, an inner spring retaining ring 4, a hexagonal bolt 5, a rotating core 6, a fastening sleeve 7, and a rolling bearing 8. Bearing retaining ring 9, rotating sprinkler head 10, brush head 11; the rotating core 6 is a straight-through pipe, which is set in the outer casing 1, and its protruding part is assembled between two thrust bearings 3 and is secured by the inner spring retaining ring 4. Closely positioned together to prevent the axial movement of the rotating core 6 in the casing 1; the casing 1 and the fastening sleeve 7 are connected together by the hexagonal bolt 5, the rolling bearing 8 is installed in the groove of the fastening sleeve 7, and the bearing retaining ring 9. Good positioning; multiple nozzles are evenly distributed on the rotating nozzle 10, the nozzle is composed of a curved section A and a straight pipe section B, the axis of the straight pipe section B is perpendicular to the axis of the nozzle 10, and the axis of the curved pipe section A is in a certain direction with the axis of the nozzle Angle, the jetted high-pressure water flow acts on the inner wall of the drill pipe at a certain angle, and its reaction force makes the rotary nozzle 10 rotate and move axially. The rotating nozzle 10 is threadedly connected to the rotating core 6, the brush head 11 is cylindrical, and bristles are arranged around the annular surface of the brush head 11, the brush head 11 and the rotating nozzle 10 are threadedly connected and the end of the brush head The screwing direction of the internal thread and the rotary nozzle is opposite to the rotation direction of the rotary nozzle. The diameter of the brush head cylinder can be set according to the size of the pipe to meet the needs of drill pipes with different diameters.

Further illustrate below in conjunction with the utility model concrete example:

When in use, first assemble the cleaning device according to the diagram, check and confirm that the rotating core 6 can rotate normally, and after each component can work normally, connect the jacket 1 to the water source pipe, and then put the cleaning device into the oil drill pipe. Turn on the water source switch, and the high-pressure water sprayed from the rotary nozzle 10 acts on the inner wall of the drill pipe at a certain angle. Due to the reaction force of the inner wall of the drill pipe, the high-pressure water makes the rotary core 6 move axially while rotating, thereby driving the entire When the device moves forward, the brush head 11 is driven to rotate in the drill pipe to achieve the purpose of cleaning. Simultaneously, the size of the brush head 11 can be set according to the diameter of the drill pipe, and the brush head 11 can be changed at any time. The device can realize the effect of secondary cleaning on the inner wall of the drill pipe after being sprayed and washed by the rotary nozzle 10, which not only improves the cleaning effect but also achieves the purpose of saving water resources.

The utility model has the advantages of simple structure, good cleaning effect, convenient disassembly and maintenance, and is suitable for cleaning the inner walls of oil drill pipes with different diameters.

Claims (5)

1. A device for cleaning the inner wall of an oil drill pipe, mainly comprising an outer casing (1), an O-ring (2), a thrust bearing (3), an inner spring retaining ring (4), a hexagonal bolt (5), a rotating core (6 ), fastening sleeve (7), rolling bearing (8), bearing retaining ring (9), rotary spray nozzle (10), brush head (11); it is characterized in that, the described rotating core (6) is set on the jacket (1) Inside, its protruding part fits between two thrust bearings (3) and is tightly positioned together with an inner spring retaining ring (4); (5) connected together, the rolling bearing (8) is installed in the groove of the tightening sleeve (7), and is positioned with the bearing retaining ring (9); the nozzle (10) and the rotating core (6) are threaded; The brush head (11) and the rotary spray head (10) are threadedly connected. 2. A kind of oil drill pipe inner wall cleaning device according to claim 1, characterized in that, the direction in which the internal thread at the end of the brush head (11) is screwed to the rotary nozzle (10) is the same as that of the rotary nozzle (10) The direction of rotation is opposite. 3. A device for cleaning the inner wall of an oil drill pipe according to claim 1, wherein the diameter of the brush head cylinder can be set according to the size of the pipeline. 4. a kind of oil drill pipe inner wall cleaning device according to claim 1, is characterized in that, on the described rotary nozzle (10), a plurality of spray pipes are evenly distributed, and the spray pipes are made up of curved section A and straight pipe section B, The axis of the straight pipe section B is perpendicular to the axis of the nozzle (10), and the axis of the curved pipe section A is at a certain angle to the axis of the nozzle. The high-pressure water jetted acts on the inner wall of the drill pipe at a certain angle. Generate rotational motion and axial movement. 5. A device for cleaning the inner wall of an oil drill pipe according to claim 1, characterized in that the brush head (11) is driven to rotate by the rotating spray head (10).