Continuous ball throwing pipe cleaner device for oil pipe

Abstract

The invention belongs to the technical field of oil pipe cleaning, and particularly relates to an oil pipe continuous ball throwing pipe cleaner device which comprises a rack, a ball throwing device is installed above the rack, the ball throwing device is cylindrical, a cavity is formed in the ball throwing device, a continuous oil pipe is arranged in the ball throwing device, and the continuous oil pipe is arranged in the cavity. The continuous oil pipe penetrates through the interior of the ball injector, the continuous oil pipe is used for being connected with an oil pipe roller, and a ball storage barrel is arranged above the ball injector; a ball guide valve element and a ball storage barrel are designed, paraffin removal balls can be isolated one by one, pressure building, flow stopping and ball clamping are avoided in the ball taking and throwing process, the ball taking and throwing smoothness and accuracy are guaranteed, the running reliability of the device is improved, the situation that the paraffin removal balls are conveyed slowly and even adhered due to residual oil on the inner wall of a continuous oil pipe is avoided, and the service life of the device is prolonged. Therefore, the paraffin removal ball cannot accurately enter a preset position, and the condition that the ball is continuously thrown cannot occur.

Description

Technical Field

[0001] The invention belongs to the technical field of oil pipe cleaning, in particular to an oil pipe continuous ball dropping cleaning device. Background Art

[0002] In the daily production of major oil fields in northern my country, wax deposition on the inner wall of various crude oil pipelines is very common. In order to ensure the smooth and safe operation of the continuous oil pipeline cleaning ball thrower, wax ball throwing must be carried out regularly. Generally, wax balls are thrown into the pipeline regularly at the front station and received at the terminal station.

[0003] Before 2008, pipeline wax cleaning mainly adopted the method of manual ball throwing at the well site and manual ball collection at the station, combined with chemical addition and regular hot washing. In winter, the temperature dropped and the wax cleaning cycle was shortened, which was labor-intensive, time-consuming and labor-intensive. Since 2008, China Petroleum's upstream sector has comprehensively promoted digital construction, and the research and development of the timing automatic ball throwing and collecting device has made a breakthrough. The test results are good and it is known as one of the three key technologies for the upstream sector's digital construction.

[0004] During use, the current continuous ball-throwing pipe cleaner may experience slow delivery or even adhesion due to oil residue on the inner wall of the continuous oil pipe, resulting in the wax cleaning ball being unable to accurately enter the predetermined position. In severe cases, the ball cannot be dropped any further, affecting the smoothness and accuracy of the ball dropping.

[0005] To this end, the present invention provides an oil pipe continuous ball dropping cleaning device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: the oil pipe continuous ball-throwing cleaning device described in the present invention comprises a frame, a ball thrower is installed above the frame, the ball thrower is cylindrical in shape and has a cavity inside, a continuous oil pipe is arranged inside the ball thrower, the continuous oil pipe runs through the inside of the ball thrower, the continuous oil pipe is used to connect the oil pipe drum, a ball storage barrel is arranged above the ball thrower, a plurality of wax-cleaning balls are stored from top to bottom inside the ball storage barrel, a ball guide valve core is arranged inside the ball thrower, the ball guide valve core is used to quickly push the wax-cleaning balls inside the ball storage barrel into the inside of the continuous oil pipe, and a control panel is arranged on the outside of the ball thrower; when working, before using the device, a plurality of wax-cleaning balls are first thrown into the ball storage barrel, and when it is necessary to treat the wax deposited on the inner wall of the oil pipe, the continuous oil pipe arranged inside the ball thrower is firstly connected with the oil pipe to be cleaned The oil pipe drum is connected, and then under the action of the ball guide valve core, the wax cleaning balls inside the ball storage barrel can be thrown into the continuous oil pipe one by one. The wax cleaning balls will enter the continuous oil drum along the continuous oil pipe, and further push the wax cleaning balls through the pipeline to the anti-corrosion and corrosion inhibitor circulation pool. In the circulation pool, the wax cleaning balls enter another pipeline, enter the anti-corrosion and corrosion inhibitor circulation pump through the pipeline, and enter the pipeline through the control panel control valve on the outside of the ball thrower. The wax cleaning balls circulate to the ball thrower to complete a cycle. The ball guide valve core and the ball storage barrel are designed to isolate the wax cleaning balls one by one, and there is no pressure buildup, continuous flow, and ball jam during the process of taking and throwing the balls, thereby ensuring the smoothness and accuracy of taking and throwing the balls, improving the reliability of the device operation, and avoiding the wax cleaning balls from being delayed in transportation or even sticking due to the oil remaining on the inner wall of the continuous oil pipe, resulting in the wax cleaning balls being unable to accurately enter the predetermined position and unable to continue throwing the balls.

[0008] Preferably, a driving seat is provided on the outer side of the ball pitcher, and the output end of the driving seat passes through the interior of the ball pitcher, and the output end of the driving seat contacts the center point of the ball guide valve core, the shape of the ball guide valve core is cylindrical, and a bearing hole is provided on the outer peripheral surface of the ball guide valve core, and the shape of the bearing hole is adapted to the shape of the wax cleaning ball, and in the initial state, the bearing hole and the outlet end of the ball storage cylinder are correspondingly arranged.

[0009] Preferably, a ball blocking rack is provided at the bottom of the ball storage barrel, and two groups of ball blocking rods are provided on the side walls of the ball blocking rack. The two groups of ball blocking rods are designed to be separated up and down, and the two groups of ball blocking rods respectively block the two wax cleaning balls at the bottom of the ball storage barrel. An oil cylinder is installed on the side wall of the ball storage barrel, and the telescopic end of the oil cylinder passes through the interior of the ball storage barrel and is connected to the side wall of the ball blocking rack. The ball blocking rack is composed of a plurality of support rods, and the distance between two of the support rods is adapted to the diameter of the wax cleaning balls.

[0010] Preferably, a column-shaped groove is provided inside the ball guide valve core and below the bearing hole, and an elastic telescopic rod is slidably provided inside the column-shaped groove, and contact one is installed on the side wall of the elastic telescopic rod, and contact two is provided on the inner wall of the column-shaped groove. In an initial state, contact one and contact two are not in contact; during operation, in the initial state, that is, when the bearing hole has not yet received the wax-cleaning ball, contact one and contact two are not in contact at this time; when the wax-cleaning ball at the bottom falls into the bearing hole, the elastic telescopic rod located in the bearing hole and the column-shaped groove is pressed by the wax-cleaning ball, and the elastic telescopic rod will drive contact one to move downward, and then contact one and contact two will contact, at this time the external circuit is connected, and the external controller first controls the ball guide valve core to rotate 180 degrees to one side of the continuous oil pipe, and then the controller controls the telescopic end of the oil cylinder to move, so that the telescopic end of the oil cylinder drives the ball blocking frame to return to the initial position, thereby facilitating the subsequent wax-cleaning ball to continue throwing.

[0011] Preferably, the shape of the columnar groove matches the shape of the elastic telescopic rod.

[0012] Preferably, the groove wall of the columnar groove is provided with two limit grooves, and the groove walls of the two limit grooves are both installed with telescopic springs. The side wall of the elastic telescopic rod is installed with two groups of L-shaped struts, and the sides of the two groups of L-shaped struts away from the elastic telescopic rod are respectively connected to the upper ends of the two telescopic springs, and a force storage unit is provided on the outer side of the L-shaped strut, and the force storage unit is used to quickly push the elastic telescopic rod out of the columnar groove.

[0013] Preferably, two groups of wrapping sheets are provided on the upper end surface of the elastic telescopic rod, and the material of the wrapping sheets is elastic material, and the shape of the wrapping sheets is adapted to the shape of the wax cleaning ball; during operation, when the elastic telescopic rod is pressed and moves downward, the elastic telescopic rod will drive the wrapping sheets to move downward, and the wrapping sheets will contact the top of the columnar groove during the movement, so that the wrapping sheets are attached to the surface of the wax cleaning ball, which can improve the stability of the wax cleaning ball inside the bearing hole during the rotation of the ball guide valve core.

[0014] Preferably, the force storage unit comprises a fixed round block mounted on the side wall of the L-shaped strut, the groove wall of the limiting groove is provided with a slot, the shape of the slot is adapted to the shape of the fixed round block; the material of the fixed round block is elastic rubber.

[0015] Preferably, the force storage unit also includes a transverse column fixedly installed inside the ball pitcher, a limiting protrusion is fixedly installed on the outer circumference of the transverse column, a hole groove is opened at the center of the ball guide valve core, the transverse column passes through the hole groove at the center of the ball guide valve core, and the elastic telescopic rod passes through the inside of the ball guide valve core and contacts with the limiting protrusion on the outer circumference of the transverse column.

[0016] Preferably, an electric sealing disk is provided at the contact position between the outer circumferential surface of the continuous oil pipe and the guide ball valve core; during operation, when the wax cleaning ball follows the guide ball valve core to rotate to the side of the electric sealing disk, the external driver will control the electric sealing disk to move, open the top of the continuous oil pipe, and then the wax cleaning ball will fall into the continuous oil pipe. When the guide ball valve core rotates away from the continuous oil pipe, the electric sealing disk will seal the continuous oil pipe again, thereby preventing outside air from entering the interior of the continuous oil pipe.

[0017] The beneficial effects of the present invention are as follows: 1. The oil pipe continuous ball-throwing cleaning device described in the present invention can isolate the wax-cleaning balls one by one by designing a ball guide valve core and a ball storage cylinder, and there is no pressure buildup, flow interruption, or ball jamming during the process of taking and throwing the balls, thereby ensuring the smoothness and accuracy of taking and throwing the balls, improving the reliability of the device operation, and preventing the wax-cleaning balls from being delayed in transportation or even sticking due to the oil remaining on the inner wall of the continuous oil pipe, resulting in the wax-cleaning balls being unable to accurately enter the predetermined position and being unable to continue throwing the balls.

[0018] 2. The oil pipe continuous ball-throwing cleaning device described in the present invention squeezes the telescopic spring in contact with the L-shaped support rod, and enables the force storage unit to start storing force. When the ball guide valve core rotates 180 degrees to one side of the continuous oil pipe, the wax-cleaning ball inside the bearing hole can be quickly pushed into the continuous oil pipe under the action of the force storage unit, avoiding the problem of slow transportation or even adhesion of the wax-cleaning ball due to the oil remaining on the inner wall of the continuous oil pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the driving seat in the present invention; Figure 4 It is a schematic diagram of the structure of the ball-guide valve core part of the present invention; Figure 5 It is a schematic diagram of the structure of the bearing hole part in the present invention; Figure 6 It is a schematic diagram of the structure of the elastic telescopic rod part of the present invention; Figure 7 It is a schematic diagram of the structure of the L-shaped support rod part of the present invention; Figure 8 It is a structural schematic diagram of the elastic telescopic rod in the present invention in the initial state; Fig. 9 This is a schematic diagram of the structure after the elastic telescopic rod of the present invention is rotated 180 degrees; Fig.10 It is a schematic diagram of the structure of the ball blocking frame part of the present invention; Fig.11 It is a schematic diagram of the top view of the ball blocking frame in the initial state of the present invention; Fig.12 It is a schematic diagram of the structure of the ball blocking frame after moving in the present invention when viewed from above.

[0021] In the figure: 1. frame; 2. ball thrower; 3. continuous oil pipe; 4. ball storage cylinder; 401. wax cleaning ball; 5. ball guide valve core; 501. bearing hole; 6. drive seat; 7. ball stop rack; 701. ball stop rod; 8. oil cylinder; 9. columnar groove; 10. elastic telescopic rod; 11. contact one; 901. contact two; 12. limit groove; 13. telescopic spring; 14. L-shaped support rod; 15. wrapping piece; 16. fixed round block; 17. slot; 18. horizontal column; 19. limit convex block; 20. electric sealing disk. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figures 1 to 6 As shown, a tubing continuous ball-throwing cleaning device according to an embodiment of the present invention comprises a frame 1, a ball thrower 2 is installed above the frame 1, the ball thrower 2 is cylindrical in shape and has a cavity inside, a continuous tubing 3 is arranged inside the ball thrower 2, the continuous tubing 3 runs through the inside of the ball thrower 2, the continuous tubing 3 is used to connect the tubing drum, a ball storage barrel 4 is arranged above the ball thrower 2, a plurality of wax-clearing balls 401 are stored from top to bottom inside the ball storage barrel 4, a ball guide valve core 5 is arranged inside the ball thrower 2, the ball guide valve core 5 is used to quickly push the wax-clearing balls 401 inside the ball storage barrel 4 into the inside of the continuous tubing 3, and a control panel is arranged on the outside of the ball thrower 2; During operation, before using the device, a plurality of wax cleaning balls 401 are first put into the ball storage barrel 4. When the wax deposited on the inner wall of the oil pipe needs to be treated, the continuous oil pipe 3 arranged in the ball thrower 2 is first connected to the oil pipe drum that needs to be cleaned. Then, through the transfer of the ball guide valve core 5, the wax cleaning balls 401 in the ball storage barrel 4 can be put into the continuous oil pipe 3 one by one. The wax cleaning balls 401 will enter the continuous oil pipe drum to be cleaned along the continuous oil pipe 3, and the wax cleaning balls 401 will be pushed into the external anti-corrosion inhibitor circulation pool through the continuous oil pipe drum. When the wax cleaning balls 401 move in the oil pipe, they will contact the inner wall of the oil pipe. The contact part will scrape off the wax, thereby cleaning the coiled tubing drum pipeline. The ball guide valve core 5 and the ball storage cylinder 4 are designed to isolate the wax cleaning balls 401 one by one, and there is no pressure buildup, flow interruption, or ball jam during the process of taking and throwing the balls, ensuring the smoothness and accuracy of taking and throwing the balls, and improving the reliability of the device operation. By quickly pushing the wax cleaning ball 401 into the coiled tubing 3 through the ball guide valve core 5, the wax cleaning ball 401 can be prevented from being delayed in transportation or even stuck due to the oil remaining on the inner wall of the coiled tubing 3, and the wax cleaning ball 401 can be prevented from being unable to accurately enter the predetermined position and unable to continue throwing the balls; Moreover, the entire device is a seal, which can prevent the ball throwing method in the prior art from carrying a certain amount of gas into the liquid flow pipeline, accumulating a large amount of gas in the liquid flow pipeline, and causing the pipeline to be unstable during the oil transportation process.

[0024] like Figures 2 to 12 As shown, a driving seat 6 is arranged on the outside of the ball pitcher 2, and the output end of the driving seat 6 runs through the inside of the ball pitcher 2, and the output end of the driving seat 6 contacts the center point of the ball guide valve core 5, and the shape of the ball guide valve core 5 is cylindrical, and the outer peripheral surface of the ball guide valve core 5 is provided with a bearing hole 501, and the shape of the bearing hole 501 is adapted to the shape of the wax cleaning ball 401. In the initial state, the bearing hole 501 and the outlet end of the ball storage cylinder 4 are arranged correspondingly; when working, refer to the attached Figure 5 As shown in the figure, this figure is the initial state, and the bearing hole 501 corresponds to the outlet end of the ball storage barrel 4; when it is necessary to put the wax cleaning ball 401 into the coiled tubing 3, the wax cleaning ball 401 at the bottom of the ball storage barrel 4 is controlled to fall into the bearing hole 501, and then the output end of the drive seat 6 is controlled to drive the ball guide valve core 5 to rotate 180 degrees, so that the ball guide valve core 5 rotates to the coiled tubing 3 and as shown in the figure Fig. 9 As shown in the side, the wax cleaning balls 401 will then fall into the interior of the coiled tubing 3, achieving the effect of throwing the wax cleaning balls 401 one by one.

[0025] A ball blocking rack 7 is provided at the bottom of the ball storage barrel 4, and two groups of ball blocking rods 701 are provided on the side walls of the ball blocking rack 7. The two groups of ball blocking rods 701 are designed to be separated up and down, and the two groups of ball blocking rods 701 respectively resist the two wax cleaning balls 401 at the bottom of the ball storage barrel 4, and an oil cylinder 8 is installed on the side wall of the ball storage barrel 4, and the telescopic end of the oil cylinder 8 passes through the interior of the ball storage barrel 4 and is connected to the side wall of the ball blocking rack 7, and the ball blocking rack 7 is composed of a plurality of support rods, and the distance between two of the support rods is adapted to the diameter of the wax cleaning ball 401; when working, in the initial state, that is, when the bearing hole 501 and the outlet end of the ball storage barrel 4 correspond, one of the ball blocking rods 701 is located at the bottom of the bottom wax cleaning ball 401, and the other ball blocking rod 701 is located between the bottom wax cleaning ball 401 and the penultimate wax cleaning ball 401, with the positions referring to the attached Fig.10 and Fig.11 As shown, when the wax cleaning ball 401 needs to work, the telescopic end of the control cylinder 8 drives the ball blocking frame 7 to move, so that the ball blocking frame 7 drives the two sets of ball blocking rods 701 to move, and then one set of ball blocking rods 701 will move away from the bottom wax cleaning ball 401, and the other set of ball blocking rods 701 will be between the bottom wax cleaning ball 401 and the penultimate wax cleaning ball 401. The position is shown in FIG. Fig.12 As shown, this can prevent the penultimate wax cleaning ball 401 from being on the surface of the bottom wax cleaning ball 401 when the bottom wax cleaning ball 401 falls into the bearing hole 501, affecting the subsequent rotation of the ball guide valve core 5, and the wax cleaning balls 401 can be thrown one by one; and the moving position of the ball blocking rack 7 is shown in the attached figure. Fig.12 As shown, at this time, the wax cleaning ball 401 can fall into the bearing hole 501 below through the gap between two adjacent support rods.

[0026] A columnar groove 9 is provided inside the ball guide valve core 5 and below the bearing hole 501, and an elastic telescopic rod 10 is slidably provided inside the columnar groove 9, and a contact 1 11 is installed on the side wall of the elastic telescopic rod 10, and a contact 2 901 is provided on the inner wall of the columnar groove 9. In the initial state, the contact 1 11 and the contact 2 901 are not in contact; when working, in the initial state, that is, when the bearing hole 501 has not yet received the wax cleaning ball 401, the contact 1 11 and the contact 2 901 are not in contact; when the bottom wax cleaning ball 401 falls into the bearing hole 501, the contact 1 11 and the contact 2 901 are not in contact. When inside the load hole 501, the elastic telescopic rod 10 located in the load hole 501 and the columnar groove 9 is pressed by the wax cleaning ball 401, and the elastic telescopic rod 10 will drive the contact 1 11 to move downward, and then the contact 1 11 will contact with the contact 2 901. At this time, the external circuit is connected, and the external controller first controls the ball guide valve core 5 to rotate 180 degrees to the side of the continuous oil pipe 3, and then the controller controls the telescopic end of the oil cylinder 8 to move, so that the telescopic end of the oil cylinder 8 drives the ball blocking frame 7 to return to the initial position, which is convenient for the subsequent wax cleaning ball 401 to continue to throw the ball;.

[0027] The shape of the columnar groove 9 is adapted to the shape of the elastic telescopic rod 10; the groove wall of the columnar groove 9 is provided with two limit grooves 12, and the groove walls of the two limit grooves 12 are both installed with telescopic springs 13, and the side wall of the elastic telescopic rod 10 is installed with two groups of L-shaped struts 14, and the two groups of L-shaped struts 14 are respectively connected to the upper ends of the two telescopic springs 13 on the side away from the elastic telescopic rod 10, and the outer side of the L-shaped struts 14 is provided with a force storage unit, and the force storage unit is used to quickly push the elastic telescopic rod 10 out of the columnar groove 9; During operation, when the wax cleaning ball 401 enters the bearing hole 501 and the elastic telescopic rod 10 moves downward under pressure, the elastic telescopic rod 10 will simultaneously drive the L-shaped support rods 14 on the two side walls to move, and the L-shaped support rods 14 squeeze the telescopic springs 13 in contact with them, and cause the force storage unit to start storing force. When the ball guide valve core 5 rotates 180 degrees to one side of the continuous oil pipe 3, under the action of the force storage unit, the wax cleaning ball 401 inside the bearing hole 501 can be quickly pushed into the continuous oil pipe 3, thereby avoiding the problem of slow transportation or even adhesion of the wax cleaning ball 401 due to the oil remaining on the inner wall of the continuous oil pipe 3.

[0028] The upper end surface of the elastic telescopic rod 10 is provided with two groups of wrapping sheets 15, and the material of the wrapping sheets 15 is elastic material, and the shape of the wrapping sheets 15 is adapted to the shape of the wax cleaning ball 401; during operation, when the elastic telescopic rod 10 is pressed and moves downward, the elastic telescopic rod 10 will drive the wrapping sheets 15 to move downward, and the wrapping sheets 15 will contact the top of the columnar groove 9 during the movement, so that the wrapping sheets 15 are attached to the surface of the wax cleaning ball 401, which can improve the stability of the wax cleaning ball 401 inside the bearing hole 501 during the rotation of the ball guide valve core 5.

[0029] The power storage unit includes a fixed round block 16 installed on the side wall of the L-shaped support rod 14, and a slot 17 is opened on the slot wall of the limiting slot 12, and the shape of the slot 17 is adapted to the shape of the fixed round block 16; the material of the fixed round block 16 is elastic rubber; during operation, when the wax cleaning ball 401 is completely placed in the bearing hole 501 and the elastic telescopic rod 10 moves to a certain position, the L-shaped support rod 14 will drive the fixed round block 16 to move into the slot 17, and under the mutual limitation of the slot 17 and the fixed round block 16, and under the cooperation of the wrapping sheet 15, the wax cleaning ball 401 can be stably located in the bearing hole 501, so that the wax cleaning ball 401 will fall when the subsequent guide ball valve core 5 rotates 180 degrees to the side of the continuous oil pipe 3.

[0030] The power storage unit also includes a cross column 18 fixedly installed inside the ball thrower 2, and a limit convex block 19 is fixedly installed on the outer circumference of the cross column 18. A hole groove is opened at the center of the ball guide valve core 5, and the cross column 18 passes through the hole groove at the center of the ball guide valve core 5. The elastic telescopic rod 10 passes through the inside of the ball guide valve core 5 and contacts the limit convex block 19 on the outer circumference of the cross column 18. When working, refer to the attached Figure 8 As shown, before the ball guide valve core 5 rotates 180 degrees toward the coiled tubing 3, the bottom end of the elastic telescopic rod 10 does not contact the limiting protrusion 19. When the ball guide valve core 5 rotates 180 degrees toward the coiled tubing 3, the bottom end of the elastic telescopic rod 10 contacts the limiting protrusion 19, and the limiting protrusion 19 squeezes the bottom end of the elastic telescopic rod 10, so that the elastic telescopic rod 10 drives the L-shaped support rod 14 and the fixed round block 16 away from the slot 17. When the fixed round block 16 is separated from the inside of the slot 17, the elastic telescopic rod 10 can be quickly restored under the elastic force of the telescopic spring 13, and the wax cleaning ball 401 can be ejected at a higher speed, so as to avoid the wax cleaning ball 401 from being delayed in transportation or even sticking due to the oil remaining on the inner wall of the coiled tubing 3, thereby ensuring that there is no pressure buildup, no flow interruption, and no ball jam during the ball throwing process, and ensuring the smoothness and accuracy of ball retrieval and throwing.

[0031] It should be noted that, during the rotation of the ball guide valve core 5 , the cross column 18 will not be driven to rotate.

[0032] An electric sealing disk 20 is provided at the contact position between the outer circumferential surface of the continuous oil pipe 3 and the guide ball valve core 5; during operation, when the wax cleaning ball 401 follows the guide ball valve core 5 to rotate to the side of the electric sealing disk 20, the external driver will control the electric sealing disk 20 to move, open the top of the continuous oil pipe 3, and then the wax cleaning ball 401 will fall into the continuous oil pipe 3. When the guide ball valve core 5 rotates away from the continuous oil pipe 3, the electric sealing disk 20 will seal the continuous oil pipe 3 again, thereby preventing outside air from entering the interior of the continuous oil pipe 3.

[0033] During operation, before using the device, several wax cleaning balls 401 are first put into the ball storage barrel 4. When the wax deposited on the inner wall of the oil pipe needs to be treated, the continuous oil pipe 3 arranged in the ball thrower 2 is first connected to the oil pipe drum that needs to be cleaned. Then, under the action of the ball guide valve core 5, the wax cleaning balls 401 in the ball storage barrel 4 can be put into the continuous oil pipe 3 one by one. The wax cleaning balls 401 will enter the continuous oil drum along the continuous oil pipe 3, and further push the wax cleaning balls 401 through the pipeline to the anti-corrosion inhibitor circulation pool. In the circulation pool, the wax cleaning balls 401 enter another pipeline and enter the anti-corrosion inhibitor through the pipeline. The corrosion inhibitor circulation pump enters the pipeline through the control panel control valve outside the ball thrower 2, and the wax cleaning ball 401 circulates to the ball thrower 2 to complete a cycle. The ball guide valve core 5 and the ball storage cylinder 4 are designed to isolate the wax cleaning balls 401 one by one, and there is no pressure buildup, flow interruption, or ball jam during the process of taking and throwing the balls, ensuring the smoothness and accuracy of taking and throwing the balls, improving the reliability of the device operation, and preventing the wax cleaning balls 401 from being delayed in transportation or even sticking due to the oil remaining on the inner wall of the continuous oil pipe 3, resulting in the wax cleaning balls 401 being unable to accurately enter the predetermined position and being unable to continue throwing the balls; See attached Figure 5 As shown in the figure, this figure is the initial state, and the bearing hole 501 corresponds to the outlet end of the ball storage barrel 4; when it is necessary to put the wax cleaning ball 401 into the coiled tubing 3, the wax cleaning ball 401 at the bottom of the ball storage barrel 4 is controlled to fall into the bearing hole 501, and then the output end of the drive seat 6 is controlled to drive the ball guide valve core 5 to rotate 180 degrees, so that the ball guide valve core 5 rotates to the coiled tubing 3 and as shown in the figure Fig. 9 As shown in the figure, the wax cleaning balls 401 will then fall into the coiled tubing 3, achieving the effect of throwing the wax cleaning balls 401 one by one; in the initial state, that is, when the bearing hole 501 and the outlet end of the ball storage cylinder 4 correspond to each other, one of the ball blocking rods 701 is located at the bottom of the bottom wax cleaning ball 401, and the other ball blocking rod 701 is located between the bottom wax cleaning ball 401 and the penultimate wax cleaning ball 401, and the position is shown in the figure. Fig.10 and Fig.11 As shown, when the wax cleaning ball 401 needs to work, the telescopic end of the control cylinder 8 drives the ball blocking frame 7 to move, so that the ball blocking frame 7 drives the two sets of ball blocking rods 701 to move, and then one set of ball blocking rods 701 will move away from the bottom wax cleaning ball 401, and the other set of ball blocking rods 701 will be between the bottom wax cleaning ball 401 and the penultimate wax cleaning ball 401. The position is shown in FIG. Fig.12 As shown, this can prevent the penultimate wax cleaning ball 401 from being on the surface of the bottom wax cleaning ball 401 when the bottom wax cleaning ball 401 falls into the bearing hole 501, affecting the subsequent rotation of the ball guide valve core 5, and the wax cleaning balls 401 can be thrown one by one; and the moving position of the ball blocking rack 7 is shown in the attached figure. Fig.12As shown, at this time, the wax cleaning ball 401 can fall through the gap between two adjacent support rods to the inside of the bearing hole 501 below; When the wax cleaning ball 401 is completely placed in the bearing hole 501 and the elastic telescopic rod 10 moves to a certain position, the L-shaped support rod 14 will drive the fixed round block 16 to move into the slot 17. Under the mutual limitation of the slot 17 and the fixed round block 16, and under the cooperation of the wrapping sheet 15, the wax cleaning ball 401 can be stably placed in the bearing hole 501, so that the wax cleaning ball 401 will fall out when the subsequent ball guide valve core 5 rotates 180 degrees to the side of the coiled tubing 3; refer to the attached Figure 8 As shown, before the ball guide valve core 5 rotates 180 degrees toward the coiled tubing 3, the bottom end of the elastic telescopic rod 10 does not contact the limiting protrusion 19. When the ball guide valve core 5 rotates 180 degrees toward the coiled tubing 3, the bottom end of the elastic telescopic rod 10 contacts the limiting protrusion 19, and the limiting protrusion 19 squeezes the bottom end of the elastic telescopic rod 10, so that the elastic telescopic rod 10 drives the L-shaped support rod 14 and the fixed round block 16 away from the slot 17. When the fixed round block 16 is separated from the inside of the slot 17, the elastic telescopic rod 10 can be quickly restored under the elastic force of the telescopic spring 13, and the wax cleaning ball 401 can be ejected at a higher speed, so as to avoid the wax cleaning ball 401 from being delayed in transportation or even sticking due to the oil remaining on the inner wall of the coiled tubing 3, thereby ensuring that there is no pressure buildup, no flow interruption, and no ball jam during the ball throwing process, and ensuring the smoothness and accuracy of ball retrieval and throwing.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A continuous ball-dropping cleaning device for oil pipes, characterized in that: The invention comprises a frame (1), wherein a ball thrower (2) is installed above the frame (1), wherein the ball thrower (2) is cylindrical in shape and has a cavity therein, wherein a continuous oil pipe (3) is arranged inside the ball thrower (2), wherein the continuous oil pipe (3) runs through the inside of the ball thrower (2), wherein the continuous oil pipe (3) is used to connect an oil pipe drum, wherein a ball storage barrel (4) is arranged above the ball thrower (2), wherein a plurality of wax-clearing balls (401) are stored from top to bottom inside the ball storage barrel (4), wherein a ball guide valve core (5) is arranged inside the ball thrower (2), wherein the ball guide valve core (5) is used to transfer the wax-clearing balls (401) inside the ball storage barrel (4) into the inside of the continuous oil pipe (3) without pressure, and wherein a control panel is arranged outside the ball thrower (2).

2. The oil pipe continuous ball dropping cleaning device according to claim 1, characterized in that: A drive seat (6) is arranged outside the ball thrower (2), and an output end of the drive seat (6) penetrates the interior of the ball thrower (2). The output end of the drive seat (6) contacts the center point of the ball guide valve core (5). The ball guide valve core (5) is cylindrical in shape. A bearing hole (501) is provided on the outer peripheral surface of the ball guide valve core (5). The shape of the bearing hole (501) matches the shape of the wax cleaning ball (401). In an initial state, the bearing hole (501) and the outlet end of the ball storage cylinder (4) are arranged correspondingly.

3. The oil pipe continuous ball dropping cleaning device according to claim 2, characterized in that: A ball blocking rack (7) is provided at the bottom of the ball storage barrel (4), and two sets of ball blocking rods (701) are provided on the side wall of the ball blocking rack (7). The two sets of ball blocking rods (701) are designed to be separated up and down, and the two sets of ball blocking rods (701) respectively block two wax cleaning balls (401) at the bottom of the ball storage barrel (4). An oil cylinder (8) is installed on the side wall of the ball storage barrel (4), and the telescopic end of the oil cylinder (8) passes through the interior of the ball storage barrel (4) and is connected to the side wall of the ball blocking rack (7). The ball blocking rack (7) is composed of a plurality of support rods, and the distance between two of the support rods is adapted to the diameter of the wax cleaning balls (401).

4. The oil pipe continuous ball dropping cleaning device according to claim 3, characterized in that: A columnar groove (9) is provided inside the ball guide valve core (5) and below the bearing hole (501); an elastic telescopic rod (10) is slidably arranged inside the columnar groove (9); a contact point 1 (11) is installed on the side wall of the elastic telescopic rod (10); and a contact point 2 (901) is arranged on the inner wall of the columnar groove (9); in an initial state, the contact point 1 (11) and the contact point 2 (901) are not in contact.

5. The oil pipe continuous ball dropping cleaning device according to claim 4, characterized in that: The shape of the columnar groove (9) matches the shape of the elastic telescopic rod (10).

6. The oil pipe continuous ball dropping cleaning device according to claim 4, characterized in that: The groove wall of the columnar groove (9) is provided with two limit grooves (12), and the groove walls of the two limit grooves (12) are both installed with telescopic springs (13). The side wall of the elastic telescopic rod (10) is installed with two groups of L-shaped support rods (14), and the sides of the two groups of L-shaped support rods (14) away from the elastic telescopic rod (10) are respectively connected to the upper ends of the two telescopic springs (13). The outer side of the L-shaped support rod (14) is provided with a force storage unit, and the force storage unit is used to quickly push the elastic telescopic rod (10) out of the columnar groove (9).

7. The oil pipe continuous ball dropping cleaning device according to claim 6, characterized in that: Two groups of wrapping sheets (15) are provided on the upper end surface of the elastic telescopic rod (10); the material of the wrapping sheets (15) is an elastic material; and the shape of the wrapping sheets (15) is compatible with the shape of the wax cleaning ball (401).

8. The oil pipe continuous ball dropping cleaning device according to claim 6, characterized in that: The force storage unit comprises a fixed round block (16) mounted on the side wall of the L-shaped support rod (14); a slot (17) is provided on the slot wall of the limiting slot (12); the shape of the slot (17) matches the shape of the fixed round block (16); and the material of the fixed round block (16) is elastic rubber.

9. The oil pipe continuous ball dropping cleaning device according to claim 8, characterized in that: The power storage unit further comprises a transverse column (18) fixedly mounted inside the ball thrower (2), a limiting protrusion (19) fixedly mounted on the outer peripheral surface of the transverse column (18), a hole groove is provided at the center of the ball guide valve core (5), the transverse column (18) passes through the hole groove at the center of the ball guide valve core (5), and the elastic telescopic rod (10) passes through the interior of the ball guide valve core (5) and contacts the limiting protrusion (19) on the outer peripheral surface of the transverse column (18).

10. The oil pipe continuous ball dropping cleaning device according to claim 2, characterized in that: An electric sealing disc (20) is provided at a position where the outer peripheral surface of the coiled oil pipe (3) contacts the ball guide valve core (5).

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