Descaling and unblocking device for oil extraction gathering and transportation pipeline

Abstract

The invention belongs to the technical field of oil extraction gathering and transportation pipe descaling, and particularly relates to an oil extraction gathering and transportation pipeline descaling and unblocking device which comprises an unblocking head, a descaling and unblocking assembly is arranged on one side of the unblocking head, and the descaling and unblocking assembly comprises a threaded rod, a second spring, an internal thread lantern ring, a main center shaft, a first transverse rod, a square block and a third spring. An internal thread lantern ring is arranged in a cylindrical groove formed in the end, away from the plug removal head, of the main centering shaft, a threaded rod is inserted into the internal thread lantern ring, and first transverse rods are inserted into three first sliding grooves which are formed in the end, close to the plug removal head, of the main centering shaft in an annular array correspondingly; when the device cannot move in a pipeline due to dirt blocking, driving force is applied intermittently, the descaling and unblocking effect is improved, meanwhile, the device can be suitable for oil extraction gathering and transportation pipes with different diameters, and the situation that the unblocking head cannot rotate due to rotation blocking is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of descaling of oil production and gathering pipelines, and in particular relates to a descaling and unblocking device for oil production and gathering pipelines. Background Art

[0002] In the produced crude oil, the scaling ions in different crude oils from different oil wells and metering stations combine to form salt molecules that are insoluble in water. Under the action of crystallization, the salt molecules in the water are rearranged and combined to form some microcrystals, and some grains begin to appear. A large number of grains become scale in the long-term accumulation, resulting in scaling. The presence of these scales will cause the inner diameter of the pipeline to decrease, thereby affecting the transportation efficiency of crude oil. In severe cases, it may even cause pipeline blockage. Therefore, it is necessary to regularly perform descaling and unblocking operations on the oil production and gathering pipelines;

[0003] When using traditional oil production and gathering pipeline descaling and unblocking devices, when the unblocking head is blocked by dirt inside the pipeline and cannot move, the conventional continuous driving force application method is difficult to effectively solve the blockage problem and may cause device failure. Since the continuous driving force will cause the device to be deadlocked with the blockage, it cannot effectively play the role of descaling and unblocking. In addition, the existing descaling and unblocking devices have poor adaptability when facing oil production and gathering pipelines of different diameters.

[0004] Therefore, a device for removing scale and blocking oil production and gathering pipelines is designed to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a device for removing scale and blocking oil production and gathering pipelines, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for descaling and unblocking oil production and gathering pipelines, comprising an unblocking head;

[0007] A descaling and deblocking assembly is provided on one side of the deblocking head, and the descaling and deblocking assembly includes a threaded rod, a second spring, an internally threaded ring, a main centering shaft, a first cross bar, a square block and a third spring, an internally threaded ring is provided in a cylindrical groove opened at an end of the main centering shaft away from the deblocking head, a threaded rod is inserted inside the internally threaded ring, three first sliding grooves in an annular array are opened near one end of the main centering shaft to form a first cross bar, respectively inserted in the first cross bar, the first cross bar is slidably connected to the main centering shaft, one end of the first cross bar is fixedly connected to the internally threaded ring, the other end of the first cross bar is fixedly connected to the square block, the third spring is provided on a side of the square block away from the first cross bar, and the second spring is fixedly connected to a side of the internally threaded ring away from the first cross bar;

[0008] A positioning assembly is disposed on the surface of the main centering shaft, and a propulsion assembly is disposed at one end of the main centering shaft.

[0009] The cam is an assembly made of a plurality of bearings, each of which is connected to a plurality of bearings of the plurality of guide rails, each of which is connected to a plurality of guide rails of the plurality of guide rails.

[0010] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the descaling and unblocking assembly also includes a connecting shaft, a hexagonal rod and a second drive motor, a connecting shaft is arranged inside the inner tube, one end of the connecting shaft is fixedly connected to one side of the unblocking head, a hexagonal slot opened inside the connecting shaft is inserted with a hexagonal rod, the hexagonal rod and the connecting shaft are slidably connected, a second drive motor is installed in the inner groove opened inside the main center shaft, and one end of the hexagonal rod is fixedly connected to the end of the output shaft of the second drive motor.

[0011] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the descaling and unblocking component also includes a fourth bearing, the fourth bearing is installed in a circular groove opened inside the main center axis, the hexagonal rod is inserted inside the fourth bearing, the hexagonal rod is rotatably connected to the main center axis through the fourth bearing, and the end of the hexagonal rod away from the second drive motor passes through a through hole opened on one side of the unblocking head, and is inserted inside the unblocking head.

[0012] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the descaling and unblocking assembly also includes a circular block, a second support rod, a first scraper and a U-shaped rod, three third slide grooves in a ring array are opened on the surface of the unblocking head, and U-shaped rods are respectively inserted in each of the three U-shaped rods, and the three U-shaped rods are respectively slidably connected to the unblocking head, and a second support rod is arranged in a square groove 1 opened inside each of the U-shaped rods, and the second support rod is rotatably connected to the U-shaped rod through an axle pin 1, and the end of the hexagonal rod away from the second driving motor is fixedly connected to the circular block, and the end of the second support rod away from the U-shaped rod is inserted in a square groove 2 opened on the surface of the circular block, and the second support rod is rotatably connected to the circular block through an axle pin 2, and the end of each U-shaped rod away from the hexagonal rod is fixedly connected to the first scraper.

[0013] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the descaling and unblocking assembly also includes a second scraper, a brush plate and a spiral scraper, one end of the first scraper is fixedly connected to the brush plate, the other end of the first scraper is fixedly connected to the second scraper, the second scraper is inserted in a fourth slide groove opened on the surface of the unblocking head, the second scraper is slidably connected to the unblocking head, and six spiral scrapers are fixedly connected to the surface of the unblocking head.

[0014] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the positioning assembly includes a U-shaped plate, a transmission roller, a first support rod and a first shaft cylinder, the first shaft cylinder is inserted in the cylindrical groove opened inside the main centering shaft, the first shaft cylinder is sleeved on the surface of the threaded rod, and the end of the second spring away from the internal threaded sleeve is fixedly connected to one end of the first shaft cylinder, and three U-shaped plates in a circular array are arranged on the outside of the main centering shaft, a plurality of transmission rollers are installed on the surface of each of the U-shaped plates, and two first support rods are inserted inside each of the U-shaped plates, each of the first support rods passes through the first through groove opened on the surface of the main centering shaft, and is inserted in the square groove opened on the surface of the first shaft cylinder, the first support rod is rotatably connected to the U-shaped plate by shaft pin three, the first support rod is rotatably connected to the first shaft cylinder by shaft pin four, and the two first support rods inside each of the U-shaped plates are parallel.

[0015] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the positioning assembly also includes a rectangular rod sleeve and a rectangular sliding rod, and each of the U-shaped plates is fixedly connected to a rectangular sliding rod on one side close to the main center axis, and the surface of the rectangular sliding rod is sleeved with a rectangular rod sleeve, and the end of the rectangular rod sleeve away from the U-shaped plate is fixedly connected to the main center axis, and the rectangular rod sleeve and the rectangular sliding rod are slidably connected.

[0016] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the propulsion assembly includes a Z-shaped mounting plate, a counterweight, a U-shaped card plate, a roller disc, a first drive motor, a first bearing, a bushing and a rotating shaft, the bottom surface of the main centering shaft is fixedly connected to the Z-shaped mounting plate, a U-shaped card plate is inserted in the longitudinal sliding groove opened on the surface of the Z-shaped mounting plate, the U-shaped card plate and the Z-shaped mounting plate are slidably connected, the top end of the U-shaped card plate is fixedly connected to the counterweight, and a roller disc is arranged in the wheel groove opened at the bottom end of the U-shaped card plate. A shaft sleeve is inserted inside the roller disk, and the shaft sleeve is fixedly connected to the roller disk. Two first bearings are installed in the rotating groove opened inside the U-shaped clamping plate, and the shaft sleeve is inserted inside the two first bearings. The shaft sleeve is rotatably connected to the U-shaped clamping plate through the first bearings. A first driving motor is installed on one side of the U-shaped clamping plate, and a rotating shaft is installed at the end of the output shaft of the first driving motor. The rotating shaft is inserted inside the shaft sleeve, and the shaft sleeve is rotatably connected to the rotating shaft. A battery is installed on the upper surface of the Z-shaped mounting plate.

[0017] As a preferred device for descaling and unblocking oil production and gathering pipelines of the present invention, the propulsion assembly also includes a first spring, a rectangular slider and a hemispherical ball. The surface of the rotating shaft is provided with a plurality of symmetrically arranged first grooves, and a rectangular slider and a first spring are provided inside each of the first grooves. The two ends of each of the first springs are respectively fixedly connected to the rectangular slider and the rotating shaft, and a hemispherical ball is fixedly connected to a side of the rectangular slider away from the first spring, and an arc-shaped groove in a ring array is provided inside the sleeve.

[0018] Compared with the prior art, the invention has the following beneficial effects: the invention has a scientific and reasonable structure and is safe and convenient to use:

[0019] 1. A propulsion assembly is provided, which is beneficial for applying the driving force of the device intermittently when the unblocking head cannot move due to dirt blocking inside the pipe, thereby improving the descaling and unblocking effect of the device and avoiding the problem of the roller disc slipping inside the pipe, causing wear inside the pipe.

[0020] 2. A positioning component is provided, which is conducive to moving the three U-shaped plates away from the main center axis when the threaded rod is rotated, and when the transmission roller and the inner wall of the pipe are in contact, the transmission roller and the inner wall of the pipe have an appropriate force so that the main center axis is in the center of the pipe, so that the device is suitable for oil production and gathering pipes of different diameters, and when the first scraper encounters a hard object, the first scraper can be moved in the direction close to the unblocking head under the action of the elastic potential energy of the third spring, avoiding the situation where the unblocking head is blocked from rotating and cannot rotate.

[0021] 3. A descaling and unblocking component is provided, which is conducive to the synchronous movement of the first scraper while moving the U-shaped plate, and to ensure that there is a suitable force between the first scraper and the inner wall of the pipe, further making the device suitable for oil production and gathering pipes of different diameters, and by rotating the spiral scraper, the second scraper, the first scraper and the brush plate inside the oil production and gathering pipe, the dirt on the inner wall of the oil production and gathering pipe can be scraped off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Sectional view at AA in the middle;

[0025] Figure 3 For the present invention Figure 1 Sectional view at the middle BB;

[0026] Figure 4 For the present invention Figure 2 Sectional view at point A;

[0027] Figure 5 For the present invention Figure 3 Sectional view at B in the middle;

[0028] Figure 6 It is a schematic diagram of the structure of the outer sleeve and the connecting shaft in the present invention;

[0029] Figure 7 It is a schematic structural diagram of the first shaft cylinder and the threaded rod in the present invention;

[0030] Figure 8 It is a schematic structural diagram of the first cross bar and the built-in tube in the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the rectangular rod sleeve and the main center axis in the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the U-shaped rod and the second supporting rod in the present invention;

[0033] Fig.11 It is a schematic diagram of the structure of the third spring and the square block in the present invention;

[0034] Fig.12 It is a structural schematic diagram of the U-shaped clamping plate and the Z-shaped mounting plate in the present invention;

[0035] Fig.13 It is a schematic diagram of the structure of the shaft sleeve and the roller disc in the present invention;

[0036] Fig.14 It is a schematic diagram of the structure of the first spring and the rectangular slider in the present invention;

[0037] In the figure:

[0038] 1. Unblocking head; 2. Propulsion assembly; 21. Z-shaped mounting plate; 22. Counterweight; 23. U-shaped card plate; 24. Longitudinal slide; 25. Roller plate; 26. First drive motor; 27. First bearing; 28. Bushing; 29. ​​Rotating shaft; 210. First groove; 211. First spring; 212. Rectangular slider; 213. Hemispherical ball; 214. Arc-shaped card slot; 215. Battery; 3. Positioning assembly; 31. U-shaped plate; 32. Transmission roller; 33. First support rod; 34. Square groove; 35. First shaft cylinder; 36. First through groove; 37. Rectangular rod sleeve; 38. Rectangular slide rod; 4. Descaling and unblocking assembly; 41. Threaded rod; 42. Second spring; 43. Internal threaded collar; 44, second bearing; 45, main center axis; 46, first slide groove; 47, first cross bar; 48, outer sleeve; 49, third bearing; 410, built-in tube; 411, second slide groove; 412, square block; 413, third spring; 414, connecting shaft; 415, hexagonal slot; 416, hexagonal rod; 417, second drive motor; 418, built-in groove; 419, fourth bearing; 420, circular groove; 421, circular block; 422, second support rod; 423, first scraper; 424, second scraper; 425, U-shaped rod; 426, brush plate; 427, third slide groove; 428, spiral scraper; 429, fourth slide groove; 430, cylindrical groove. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example: Figure 1-Figure 14 As shown, the present invention provides a technical solution, a device for descaling and unblocking an oil production and gathering pipeline, comprising an unblocking head 1;

[0041] A descaling and deblocking assembly 4 is provided on one side of the deblocking head 1. The descaling and deblocking assembly 4 includes a threaded rod 41, a second spring 42, an internal threaded collar 43, a main centering axis 45, a first cross bar 47, a square block 412, a second bearing 44, an outer sleeve 48, a third bearing 49, an internal tube 410, a connecting shaft 414, a hexagonal rod 416, a second drive motor 417, a fourth bearing 419, a circular block 421, a second support rod 422, a first scraper 423, a U-shaped rod 425, a second scraper 424, a brush plate 426, a spiral scraper 428 and a third spring 413. The main centering axis 45 is away from the deblocking head 1. An internal threaded collar 43 is provided in the cylindrical groove 430 opened at the end, a threaded rod 41 is inserted in the internal threaded collar 43, three first slide grooves 46 in an annular array are opened at one end of the main centering shaft 45 close to the unblocking head 1, and first cross bars 47 are respectively inserted in them, the first cross bar 47 is slidably connected to the main centering shaft 45, one end of the first cross bar 47 is fixedly connected to the internal threaded collar 43, the other end of the first cross bar 47 is fixedly connected to a square block 412, a third spring 413 is provided on the side of the square block 412 away from the first cross bar 47, and a second spring 42 is fixedly connected to the side of the internal threaded collar 43 away from the first cross bar 47;

[0042] A second bearing 44 is installed in a cylindrical groove 430 opened at one end of the main centering shaft 45 away from the unblocking head 1, one end of the threaded rod 41 is inserted into the inside of the second bearing 44, the threaded rod 41 is rotatably connected to the main centering shaft 45 through the second bearing 44, the internal threaded collar 43 is threadedly connected to the threaded rod 41, an outer sleeve 48 is fixedly connected to one side of the unblocking head 1, a third bearing 49 is installed inside the outer sleeve 48, an inner tube 410 is installed inside the third bearing 49, the inner tube 410 is rotatably connected to the outer sleeve 48 through the third bearing 49, and one end of the main centering shaft 45 is inserted Inside the outer sleeve 48, the main center shaft 45 and the outer sleeve 48 are rotatably connected, the square block 412 and the third spring 413 are both located in the second slide groove 411 opened at the end of the built-in tube 410 away from the unblocking head 1, the square block 412 and the built-in tube 410 are slidably connected, and the two ends of the third spring 413 are respectively fixedly connected to the square block 412 and the built-in tube 410, and the end of the built-in tube 410 away from the unblocking head 1 is provided with three second slide grooves 411 in an annular array, so that the three first cross bars 47 can be respectively inserted into the second slide grooves 411 at the corresponding positions. For details, please refer to Fig.11 shown.

[0043] A connecting shaft 414 is provided inside the built-in tube 410, one end of the connecting shaft 414 is fixedly connected to one side of the unblocking head 1, a hexagonal slot 415 opened inside the connecting shaft 414 is inserted with a hexagonal rod 416, the hexagonal rod 416 and the connecting shaft 414 are slidably connected, a second drive motor 417 is installed in the built-in groove 418 opened inside the main center axis 45, and one end of the hexagonal rod 416 is fixedly connected to the end of the output shaft of the second drive motor 417.

[0044] A fourth bearing 419 is installed in the circular groove 420 opened inside the main centering shaft 45, and the hexagonal rod 416 is inserted inside the fourth bearing 419. The hexagonal rod 416 is rotatably connected to the main centering shaft 45 through the fourth bearing 419. The end of the hexagonal rod 416 away from the second drive motor 417 passes through the through hole opened on one side of the unblocking head 1 and is inserted inside the unblocking head 1. The unblocking head 1 is a hollow structure. For details, please refer to Figure 2 shown.

[0045] Three third slide grooves 427 in a circular array are provided on the surface of the unblocking head 1, and U-shaped rods 425 are respectively inserted in them. The three U-shaped rods 425 are respectively slidably connected to the unblocking head 1. A second support rod 422 is provided in a square groove 1 provided inside each U-shaped rod 425. The second support rod 422 is rotatably connected to the U-shaped rod 425 through an axle pin 1. One end of the hexagonal rod 416 away from the second driving motor 417 is fixedly connected to a circular block 421. One end of the second support rod 422 away from the U-shaped rod 425 is inserted in a square groove 2 provided on the surface of the circular block 421. The second support rod 422 is rotatably connected to the circular block 421 through an axle pin 2. One end of each U-shaped rod 425 away from the hexagonal rod 416 is fixedly connected to a first scraper 423.

[0046] One end of the first scraper 423 is fixedly connected to a brush plate 426, and the other end of the first scraper 423 is fixedly connected to a second scraper 424, and the second scraper 424 is inserted into a fourth slide groove 429 provided on the surface of the unblocking head 1, and the second scraper 424 is slidably connected to the unblocking head 1, and six spiral scrapers 428 are fixedly connected to the surface of the unblocking head 1, and the spiral scrapers 428 are spiral-shaped, which is convenient for scraping off dirt that is blocked inside the pipeline. The connection structure of the spiral scraper 428 and the unblocking head 1 can be referred to Figure 1 shown.

[0047] The surface of the main centering shaft 45 is provided with a positioning assembly 3, which includes a U-shaped plate 31, a transmission roller 32, a rectangular rod sleeve 37, a rectangular sliding rod 38, a first support rod 33 and a first shaft cylinder 35. The first shaft cylinder 35 is inserted into the cylindrical groove 430 opened inside the main centering shaft 45. The first shaft cylinder 35 is sleeved on the surface of the threaded rod 41. The inner diameter of the first shaft cylinder 35 is larger than the diameter of the threaded rod 41. The threaded rod 41 does not contact the first shaft cylinder 35 during the rotation process. One end of the second spring 42 away from the internal threaded collar 43 is fixedly connected to one end of the first shaft cylinder 35. The outside of the main centering shaft 45 is provided with three U-shaped plates 31 in a ring array. A plurality of transmission rollers 32 are installed on the surface of each U-shaped plate 31, and two first support rods 33 are inserted inside each U-shaped plate 31, and each first support rod 33 passes through a first through slot 36 opened on the surface of the main center axis 45, and is inserted in a square groove 34 opened on the surface of the first shaft cylinder 35. The first support rod 33 is rotatably connected to the U-shaped plate 31 through axle pin three, and the first support rod 33 is rotatably connected to the first shaft cylinder 35 through axle pin four, and the two first support rods 33 inside each U-shaped plate 31 are parallel, and the setting of the first through slot 36 facilitates the rotation of the first support rod 33 and does not hinder the rotation path of the first support rod 33.

[0048] A rectangular slide bar 38 is fixedly connected to one side of each U-shaped plate 31 close to the main center axis 45, and a rectangular rod sleeve 37 is sleeved on the surface of the rectangular slide bar 38. The end of the rectangular rod sleeve 37 away from the U-shaped plate 31 is fixedly connected to the main center axis 45, and the rectangular rod sleeve 37 and the rectangular slide bar 38 are slidably connected.

[0049] A propulsion assembly 2 is provided at one end of the main centering shaft 45, and the propulsion assembly 2 includes a Z-shaped mounting plate 21, a counterweight block 22, a U-shaped card plate 23, a roller disc 25, a first driving motor 26, a first bearing 27, a first spring 211, a rectangular slider 212, a hemispherical ball 213, a sleeve 28 and a rotating shaft 29. The bottom surface of the main centering shaft 45 is fixedly connected with the Z-shaped mounting plate 21, and a U-shaped card plate 23 is inserted in the longitudinal slide groove 24 opened on the surface of the Z-shaped mounting plate 21. The U-shaped card plate 23 and the Z-shaped mounting plate 21 are slidably connected. The top end of the U-shaped card plate 23 is fixedly connected with the counterweight block 22, and the roller disc 25 is arranged in the wheel groove opened at the bottom end of the U-shaped card plate 23. The roller disc 25 is inserted with a sleeve 28, and the sleeve 28 and the roller disc 25 is fixedly connected, two first bearings 27 are installed in the rotating groove opened in the U-shaped clamping plate 23, and the sleeve 28 is inserted in the two first bearings 27. The sleeve 28 is rotatably connected to the U-shaped clamping plate 23 through the first bearings 27. A first driving motor 26 is installed on one side of the U-shaped clamping plate 23, and a rotating shaft 29 is installed at the end of the output shaft of the first driving motor 26. The rotating shaft 29 is inserted in the sleeve 28, and the sleeve 28 and the rotating shaft 29 are rotatably connected. A battery 215 is installed on the upper surface of the Z-shaped mounting plate 21, and the first driving motor 26 and the second driving motor 417 are both conductively connected to the battery 215 through a wire, and the operation of the first driving motor 26 and the second driving motor 417 can be controlled by an external controller.

[0050] The surface of the rotating shaft 29 is provided with a plurality of symmetrically arranged first grooves 210, and a rectangular slider 212 and a first spring 211 are arranged inside each of the first grooves 210, and the two ends of each first spring 211 are fixedly connected to the rectangular slider 212 and the rotating shaft 29 respectively, and a hemispherical ball 213 is fixedly connected to a side of the rectangular slider 212 away from the first spring 211, and an arc-shaped groove 214 in a ring array is arranged inside the sleeve 28, and the hemispherical ball 213 is inserted into the arc-shaped groove 214 at the corresponding position, and the number of the arc-shaped groove 214 can be at least four, and the number of the arc-shaped groove 214 is An even number is provided to ensure that a uniform driving force is applied to the shaft sleeve 28. The hemispherical ball 213 and the rectangular slider 212 arranged inside the rotating shaft 29 are symmetrically arranged. When the device is difficult to move continuously due to the blockage of dirt, the rotation of the rotating shaft 29 drives the hemispherical ball 213 to rotate. When the roller disc 25 is difficult to rotate, the hemispherical ball 213 slides out from the arc groove 214 and slides into the arc groove 214 at an adjacent position, so that the driving force of the device is intermittently applied, thereby improving the descaling and unblocking effect of the device and avoiding the problem that the roller disc 25 slips inside the pipe and causes wear inside the pipe.

[0051] It should be noted that: under the action of the gravity of the counterweight block 22, there is an appropriate force between the roller plate 25 and the inner wall of the pipeline, which can push the device to move inside the oil production and gathering pipeline. Multiple hemispherical balls 213 are symmetrically arranged on the surface of the rotating shaft 29, thereby ensuring that a uniform driving force is applied to the sleeve 28.

[0052] Working principle: When the device is in use, the device is placed in the oil gathering pipe to be descaled and unblocked, and the threaded rod 41 is rotated. The rotation of the threaded rod 41 drives the internal threaded collar 43 to slide inside the main centering shaft 45 under the action of the thread. During the movement, the internal threaded collar 43 drives the first shaft cylinder 35 to move synchronously through the second spring 42. The movement of the first shaft cylinder 35 drives the first support rod 33 to move, thereby pushing the U-shaped plate 31 to move. During the movement of the U-shaped plate 31, the rectangular slide rod 38 is driven to slide inside the rectangular rod sleeve 37, thereby making the U-shaped plate 31 Move in a direction away from the main centering axis 45 until the multiple transmission rollers 32 in a ring array abut against the pipe wall, and in the process of continuously stretching the second spring 42, the multiple transmission rollers 32 exert a suitable force on the inner wall of the pipe, which is conducive to moving the three U-shaped plates 31 in a direction away from the main centering axis 45 when the threaded rod 41 is rotated, and when the transmission rollers 32 and the inner wall of the pipe are in contact, the transmission rollers 32 and the inner wall of the pipe exert a suitable force to make the main centering axis 45 in the center of the pipe, so that the device is suitable for oil production and gathering pipes with different diameters;

[0053] In the process of the internal threaded ring 43 being driven to move by the rotation of the threaded rod 41, the internal threaded ring 43 drives the first cross bar 47 to move synchronously during the movement, and the movement of the first cross bar 47 drives the square block 412 and the third spring 413 to move synchronously, thereby making the built-in tube 410 move, and the built-in tube 410 drives the outer tube 48 and the unblocking head 1 to move synchronously through the third bearing 49 during the movement, and the unblocking head 1 drives the connecting shaft 414 to slide on the surface of the hexagonal rod 416 during the movement, and the unblocking head 1 drives the U-shaped rod 425 to move synchronously during the movement, and the U-shaped rod 425 drives the U-shaped rod 425 to move synchronously during the movement, because the position of the circular block 421 remains unchanged during the movement, and the U-shaped rod 425 is driven to move through the second support rod 422, and the movement of the U-shaped rod 425 drives the first scraper 423 to move synchronously, the second support rod 422 and the first support rod 33 have the same size, and in the initial position, the second support rod 422 and the first support rod 33 are inclined in symmetrical directions, and the inclination direction of the second support rod 422 and the first support rod 33 is as shown in FIG. Figure 7 As shown;

[0054] When the internal threaded collar 43 moves toward the unplugging head 1 so that the U-shaped plate 31 moves in the direction away from the main centering axis 45, the movement of the U-shaped plate 31 drives the internal tube 410 to move in the direction away from the main centering axis 45 through the first cross bar 47, and then the first scraper 423 moves in the direction away from the unplugging head 1 through the second support rod 422. Since the second support rod 422 and the first support rod 33 are symmetrically arranged at their initial positions, the moving distance of the U-shaped plate 31 can be close to the moving distance of the first scraper 423, so that when the driving roller 32 moves to fit the inner wall of the pipe, the first scraper 423 just fits the inner wall of the pipe. Similarly, it can be known that in the reverse direction When the threaded rod 41 is rotated, the U-shaped plate 31 can drive the driving roller 32 to move toward the direction close to the main center axis 45, and the first scraper 423 can move toward the direction close to the unblocking head 1, and under the action of the second spring 42, there is a suitable force between the driving roller 32 and the inner wall of the pipeline, and under the action of the elastic potential energy of the third spring 413, there is a suitable force between the first scraper 423 and the inner wall of the pipeline, ensuring the effect of descaling the inner wall of the pipeline, which is conducive to the synchronous movement of the first scraper 423 while moving the U-shaped plate 31, and there is a suitable force between the first scraper 423 and the inner wall of the pipeline, further making the device suitable for oil production and gathering pipelines with different diameters;

[0055] When the device is placed in the pipeline and the debugging is completed, the first drive motor 26 and the second drive motor 417 are started through the controller, and the operation of the second drive motor 417 drives the hexagonal rod 416 to rotate, and the rotation of the hexagonal rod 416 drives the connecting shaft 414 to rotate, thereby driving the unblocking head 1 to rotate. During the rotation, the unblocking head 1 drives the first scraper 423 and the spiral scraper 428 on the surface of the unblocking head 1 to rotate synchronously. The spiral scraper 428 is spiral-shaped, and the unblocking head 1 drives the spiral scraper 428 to rotate in the process of the spiral scraper 428 to spirally scrape away the dirt blocked inside the pipeline. In the process of the first scraper 423 rotating in contact with the inner wall of the pipeline, the dirt adhered to the inner wall of the pipeline is scraped away, and the rotation of the first scraper 423 drives the second scraper 424 and the brush plate 426 to rotate synchronously, and the second scraper The blade 424 can scrape the dirt inside the pipeline to avoid the gap between the first scraper 423 and the unblocking head 1, which causes some dirt to be unable to be scraped off. When the first scraper 423 drives the brush plate 426 to rotate synchronously, the brush plate 426 can clean the dirt on the inner wall of the pipeline, thereby ensuring the effect of descaling and unblocking the inner wall of the pipeline, which is conducive to the spiral scraper 428, the second scraper 424, the first scraper 423 and the brush plate 426 rotating inside the oil production and gathering pipe to achieve the effect of scraping the dirt on the inner wall of the oil production and gathering pipe, and when the first scraper 423 encounters a hard object, the first scraper 423 can be moved in the direction close to the unblocking head 1 under the action of the elastic potential energy of the third spring 413, avoiding the situation that the unblocking head 1 is blocked from rotating and cannot rotate;

[0056] When the first drive motor 26 is started by the controller, the operation of the first drive motor 26 drives the rectangular slider 212 and the hemispherical ball 213 to rotate synchronously through the rotating shaft 29. Since the hemispherical ball 213 is inserted into the arc groove 214 provided inside the shaft sleeve 28, when the unblocking head 1 cannot move due to the dirt inside the pipe, the first drive motor 26 drives the rotating shaft 29 to rotate continuously. Since the device is difficult to move continuously due to the blockage of dirt, that is, when the roller disc 25 is difficult to rotate due to the resistance of the device, the hemispherical ball 213 slides out from the arc groove 214, slides to the inner wall of the shaft sleeve 28, and slides into the adjacent position. In the arc groove 214 at the position, during this process, after the scraping force of the device on the dirt inside the pipeline reaches an appropriate level, the force pushing the device to move is reduced, that is, the scraping force applied by the device to the dirt is reduced. When the hemispherical ball 213 slides into the arc groove 214 at the adjacent position, the force applied to the roller disc 25 is increased, that is, the driving force of the device inside the pipeline is increased again, which is beneficial when the unblocking head 1 cannot move due to the dirt inside the pipeline, so that the driving force of the device tends to be intermittently applied, thereby improving the descaling and unblocking effect of the device and avoiding the roller disc 25 slipping inside the pipeline, causing the problem of wear inside the pipeline.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for removing scale and unblocking oil production and gathering pipelines, comprising an unblocking head (1); Features: A descaling and deblocking assembly (4) is provided on one side of the deblocking head (1), and the descaling and deblocking assembly (4) comprises a threaded rod (41), a second spring (42), an internally threaded collar (43), a main centering shaft (45), a first cross bar (47), a square block (412) and a third spring (413); an internally threaded collar (43) is provided in a cylindrical groove (430) provided at one end of the main centering shaft (45) away from the deblocking head (1); a threaded rod (41) is inserted into the interior of the internally threaded collar (43); and the main centering shaft (45) is close to the deblocking head (1). One end is provided with three first slide grooves (46) in an annular array, in which first cross bars (47) are respectively inserted, the first cross bar (47) is slidably connected to the main center axis (45), one end of the first cross bar (47) is fixedly connected to the internal threaded collar (43), the other end of the first cross bar (47) is fixedly connected to a square block (412), a third spring (413) is arranged on the side of the square block (412) away from the first cross bar (47), and a second spring (42) is fixedly connected to the side of the internal threaded collar (43) away from the first cross bar (47); A positioning component (3) is arranged on the surface of the main centering shaft (45), and a propulsion component (2) is arranged at one end of the main centering shaft (45).

2. The device for removing scale and blocking oil production and gathering pipelines according to claim 1 is characterized in that: The descaling and unblocking assembly (4) further comprises a second bearing (44), an outer sleeve (48), a third bearing (49) and an inner tube (410); the second bearing (44) is installed in a cylindrical groove (430) opened at one end of the main center shaft (45) away from the unblocking head (1); one end of the threaded rod (41) is inserted into the interior of the second bearing (44); the threaded rod (41) is rotatably connected to the main center shaft (45) via the second bearing (44); the internal threaded collar (43) and the threaded rod (41) are threadedly connected; one side of the unblocking head (1) is fixedly connected to the outer sleeve (48); the interior of the outer sleeve (48) is installed with a third bearing (49); An internal tube (410) is installed inside the third bearing (49), and the internal tube (410) is rotatably connected to the outer tube (48) through the third bearing (49). One end of the main centering shaft (45) is inserted into the inner part of the outer tube (48), and the main centering shaft (45) and the outer tube (48) are rotatably connected. The square block (412) and the third spring (413) are both located in a second sliding groove (411) opened at one end of the internal tube (410) away from the unblocking head (1). The square block (412) and the internal tube (410) are slidably connected, and the two ends of the third spring (413) are fixedly connected to the square block (412) and the internal tube (410) respectively.

3. The device for removing scale and blocking oil production and gathering pipelines according to claim 2 is characterized in that: The descaling and unblocking assembly (4) also includes a connecting shaft (414), a hexagonal rod (416) and a second drive motor (417); the connecting shaft (414) is arranged inside the built-in tube (410); one end of the connecting shaft (414) is fixedly connected to one side of the unblocking head (1); a hexagonal slot (415) provided inside the connecting shaft (414) is inserted with a hexagonal rod (416); the hexagonal rod (416) and the connecting shaft (414) are slidably connected; the second drive motor (417) is installed in the built-in groove (418) provided inside the main centering shaft (45); one end of the hexagonal rod (416) is fixedly connected to the end of the output shaft of the second drive motor (417).

4. The device for removing scale and blocking oil production and gathering pipelines according to claim 3 is characterized in that: The descaling and unblocking assembly (4) further comprises a fourth bearing (419), the fourth bearing (419) being installed in a circular groove (420) provided inside the main centering shaft (45), the hexagonal rod (416) being inserted inside the fourth bearing (419), the hexagonal rod (416) being rotationally connected to the main centering shaft (45) via the fourth bearing (419), and the end of the hexagonal rod (416) away from the second drive motor (417) passing through a through hole provided on one side of the unblocking head (1), and being inserted inside the unblocking head (1).

5. The device for removing scale and blocking oil production and gathering pipelines according to claim 3 is characterized in that: The descaling and unblocking assembly (4) further comprises a circular block (421), a second support rod (422), a first scraper (423) and a U-shaped rod (425); the surface of the unblocking head (1) is provided with three third sliding grooves (427) in a circular array, each of which is provided with a U-shaped rod (425); the three U-shaped rods (425) are respectively connected to the unblocking head (1) in a sliding manner; a second support rod (422) is provided in a square groove in the interior of each U-shaped rod (425); the second support rod (422) is connected to the unblocking head (1) by a shaft Pin 1 is rotatably connected to the U-shaped rod (425); one end of the hexagonal rod (416) away from the second drive motor (417) is fixedly connected to a circular block (421); one end of the second support rod (422) away from the U-shaped rod (425) is inserted into a square groove 2 provided on the surface of the circular block (421); the second support rod (422) is rotatably connected to the circular block (421) via axle pin 2; and one end of each U-shaped rod (425) away from the hexagonal rod (416) is fixedly connected to a first scraper (423).

6. The device for removing scale and blocking oil production and gathering pipelines according to claim 5 is characterized in that: The descaling and unblocking assembly (4) also includes a second scraper (424), a brush plate (426) and a spiral scraper (428); one end of the first scraper (423) is fixedly connected to the brush plate (426); the other end of the first scraper (423) is fixedly connected to the second scraper (424); the second scraper (424) is inserted into a fourth sliding groove (429) provided on the surface of the unblocking head (1); the second scraper (424) is slidably connected to the unblocking head (1); and six spiral scrapers (428) are fixedly connected to the surface of the unblocking head (1).

7. The device for removing scale and blocking oil production and gathering pipelines according to claim 1, characterized in that: The positioning assembly (3) comprises a U-shaped plate (31), a transmission roller (32), a first support rod (33) and a first shaft cylinder (35); the first shaft cylinder (35) is inserted into a cylindrical groove (430) provided inside the main centering shaft (45); the first shaft cylinder (35) is sleeved on the surface of the threaded rod (41); one end of the second spring (42) away from the internal threaded collar (43) is fixedly connected to one end of the first shaft cylinder (35); three U-shaped plates (31) in an annular array are provided outside the main centering shaft (45); and each of the U-shaped plates (31) is mounted on the surface of the first shaft cylinder (35). There are a plurality of transmission rollers (32), and two first support rods (33) are inserted inside each of the U-shaped plates (31), each of the first support rods (33) passes through a first through groove (36) provided on the surface of the main center axis (45), and is inserted in a square groove (34) provided on the surface of the first shaft cylinder (35), the first support rod (33) is rotatably connected to the U-shaped plate (31) through axle pin three, the first support rod (33) is rotatably connected to the first shaft cylinder (35) through axle pin four, and the two first support rods (33) inside each of the U-shaped plates (31) are parallel.

8. The device for removing scale and blocking oil production and gathering pipelines according to claim 7 is characterized in that: The positioning assembly (3) further comprises a rectangular rod sleeve (37) and a rectangular sliding rod (38); a side of each U-shaped plate (31) close to the main center axis (45) is fixedly connected to the rectangular sliding rod (38); a surface of the rectangular sliding rod (38) is sleeved with a rectangular rod sleeve (37); an end of the rectangular rod sleeve (37) away from the U-shaped plate (31) is fixedly connected to the main center axis (45); and the rectangular rod sleeve (37) and the rectangular sliding rod (38) are slidably connected.

9. The device for removing scale and blocking oil production and gathering pipelines according to claim 1, characterized in that: The propulsion assembly (2) comprises a Z-shaped mounting plate (21), a counterweight (22), a U-shaped card plate (23), a roller disc (25), a first drive motor (26), a first bearing (27), a shaft sleeve (28) and a rotating shaft (29); the bottom surface of the main centering shaft (45) is fixedly connected to the Z-shaped mounting plate (21); a U-shaped card plate (23) is inserted into a longitudinal sliding groove (24) provided on the surface of the Z-shaped mounting plate (21); the U-shaped card plate (23) and the Z-shaped mounting plate (21) are slidably connected; the top end of the U-shaped card plate (23) is fixedly connected to the counterweight (22); a roller disc (25) is provided in a wheel groove provided at the bottom end of the U-shaped card plate (23); a shaft is inserted into the inside of the roller disc (25); A sleeve (28) is provided, wherein the sleeve (28) and the roller disc (25) are fixedly connected, two first bearings (27) are installed in a rotation groove provided inside the U-shaped card plate (23), the sleeve (28) is inserted inside the two first bearings (27), the sleeve (28) is rotatably connected to the U-shaped card plate (23) through the first bearings (27), a first drive motor (26) is installed on one side of the U-shaped card plate (23), a rotating shaft (29) is installed at the end of the output shaft of the first drive motor (26), the rotating shaft (29) is inserted inside the sleeve (28), the sleeve (28) and the rotating shaft (29) are rotatably connected, and a storage battery (215) is installed on the upper surface of the Z-shaped mounting plate (21).

10. The device for removing scale and blocking oil production and gathering pipelines according to claim 9, characterized in that: The propulsion assembly (2) further comprises a first spring (211), a rectangular slider (212) and a hemispherical ball (213); a plurality of symmetrically arranged first grooves (210) are provided on the surface of the rotating shaft (29); a rectangular slider (212) and a first spring (211) are provided inside each of the first grooves (210); two ends of each of the first springs (211) are respectively fixedly connected to the rectangular slider (212) and the rotating shaft (29); a hemispherical ball (213) is fixedly connected to a side of the rectangular slider (212) away from the first spring (211); and an arc-shaped slot (214) in a ring array is provided inside the shaft sleeve (28).

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