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CN-122007091-A - Laser cleaning and rust removing device and method for outer wall of old oil pipe

CN122007091ACN 122007091 ACN122007091 ACN 122007091ACN-122007091-A

Abstract

The invention discloses a laser cleaning and rust removing device for the outer wall of an old oil pipe, which comprises a ground rail moving module, a dust collection module and a lifting module, wherein the dust collection module and the lifting module are arranged on the ground rail moving module, the dust collection module comprises a dust collector arranged on the ground rail moving module, a dust collection pipeline connected with the dust collector, the lifting module is provided with a horizontal moving module, the horizontal moving module is provided with a laser cleaning module and a dust collection pipeline, the laser cleaning module further comprises a pair of roller supporting modules arranged on one side of the ground rail moving module, the ground rail moving module is used for enabling the dust collection module, the lifting module, the horizontal moving module and the laser cleaning module to move along the direction of the old oil pipe, and the horizontal moving module is used for enabling the laser cleaning module and the dust collection pipeline to be close to or far away from the outer wall of the old oil pipe. The invention solves the problems of serious environmental pollution and poor cleaning effect in the prior art when the outer side wall of the old metal oil pipe is derusted. The invention also discloses a laser cleaning and rust removing method for the outer wall of the old oil pipe.

Inventors

  • TONG KE
  • LIU QING
  • LI DONGFENG
  • QU TINGTING
  • LIU WENHONG

Assignees

  • 中国石油天然气集团有限公司
  • 中国石油集团工程材料研究院有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (10)

  1. 1. The laser cleaning and rust removing device for the outer wall of the old oil pipe is characterized by comprising a ground rail moving module (50), a dust collection module (20) and a lifting module (40), wherein the dust collection module (20) and the lifting module (40) are arranged on the ground rail moving module (50), the dust collection module (20) comprises a dust collector (200) arranged on the ground rail moving module (50) and a dust collection pipeline (201) connected with the dust collector (200), the lifting module (40) is provided with a horizontal moving module (30), the horizontal moving module (30) is provided with a laser cleaning module (10) and a dust collection pipeline (201), the laser cleaning device further comprises a pair of roller support modules (60) which are arranged on one side of the ground rail moving module (50) and used for supporting and driving the old oil pipe to be cleaned to rotate, the ground rail moving module (50) is used for achieving movement of the dust collection module (20), the lifting module (40), the horizontal moving module (30) and the laser cleaning module (10) along the direction of the old oil pipe, and the horizontal moving module (30) is used for achieving that the laser cleaning module (10) and the dust collection pipeline (201) are close to or far away from the outer wall of the old oil pipe.
  2. 2. The laser cleaning rust removing device for the outer wall of the old oil pipe according to claim 1, wherein the laser cleaning module (10) comprises a laser cleaning machine (100) and a laser cleaning hand tool (101) connected with the laser cleaning machine (100), the laser cleaning hand tool (101) is arranged on a horizontal moving module (30), and the horizontal moving module (30) is used for enabling the laser cleaning hand tool (101) and a dust collecting pipeline (201) to be close to or far away from the outer wall of the old oil pipe; the laser cleaning machine (100) is used for generating laser, and the laser cleaning hand tool (101) is used for emitting the laser to clean the outer wall of the old oil pipe; The dust collector (200) and the dust collecting pipeline (201) are used for collecting smoke dust generated when the outer wall of the old oil pipe is cleaned; the lifting module (40) is used for driving the horizontal moving module (30) to lift so as to enable the laser cleaning hand tool (101) and the dust collecting pipeline (201) to be close to or far away from the outer wall of the old oil pipe; The track distribution direction of the ground track moving module (50) is the same as the placement direction of the old oil pipe, a pair of roller support modules (60) are respectively positioned at two ends of one side of the ground track moving module (50), and two ends of the old oil pipe are respectively supported on the two roller support modules (60).
  3. 3. The laser cleaning rust removing device for the outer wall of the old oil pipe according to claim 2, wherein the roller supporting module (60) comprises a fixed mounting seat (600) fixed on one side of the ground rail moving module (50), two ends of the fixed mounting seat (600) are symmetrically and slidably provided with sliding mounting seats (603), the sliding direction of the sliding mounting seat (603) on the fixed mounting seat (600) is perpendicular to the axial direction of the old oil pipe, the fixed mounting seat (600) is also provided with a sliding mounting groove (604), a bidirectional counter-wire threaded rod (601) is arranged in the sliding mounting groove (604), two ends of the bidirectional counter-wire threaded rod (601) sequentially penetrate through the sliding mounting groove (604) on the corresponding side and the fixed mounting seat (600), the bidirectional counter-wire threaded rod (601) is rotationally connected with the fixed mounting seat (600), the bottom of each sliding mounting groove (604) is fixedly provided with a threaded slider (605) matched with the bidirectional counter-wire threaded rod (601), the bidirectional counter-wire threaded rod (601) penetrates through the corresponding threaded slider (605) and is connected with the threaded slider (605), the roller assembly (606) is axially arranged on the old oil pipe assembly (606), the roller assembly is axially parallel to the old oil pipe assembly (606), one side of the fixed mounting seat (600) is also fixedly provided with a driving piece (602), and the driving piece (602) is fixedly connected with one end of a bidirectional reverse thread threaded rod (601) positioned on the same side of the fixed mounting seat (600).
  4. 4. The laser cleaning rust removing device for the outer wall of the old oil pipe according to claim 3, wherein the bidirectional reverse thread threaded rod (601) is provided with a positive thread extending from the middle of the bidirectional reverse thread threaded rod (601) to the end of one end and a reverse thread extending from the middle of the bidirectional reverse thread threaded rod (601) to the end of the other end, a thread slider (605) at the bottom of one sliding mounting seat (603) is in threaded connection with one end of the bidirectional reverse thread threaded rod (601) provided with the positive thread, and a thread slider (605) at the bottom of the other sliding mounting seat (603) is in threaded connection with one end of the bidirectional reverse thread threaded rod (601) provided with the reverse thread, so that a pair of sliding mounting seats (603) are simultaneously close to or simultaneously far away from each other.
  5. 5. The laser cleaning and rust removing device for the outer wall of the old oil pipe according to claim 4, wherein the roller assembly (606) comprises a roller mounting frame (607) fixedly arranged on a sliding mounting seat (603), a rotating roller (608) is rotatably arranged on the roller mounting frame (607), a roller driving motor (609) is arranged on the roller mounting frame (607) in one roller assembly (606), the roller driving motor (609) is fixedly connected with the roller mounting frame (607), an output shaft of the roller driving motor (609) penetrates through the roller mounting frame (607) and is fixedly connected with the corresponding rotating roller (608), an output shaft of the roller driving motor (609) is rotatably connected with the roller mounting frame (607), and the roller driving motor (609) is used for driving the rotating roller (608) to rotate, and the axial direction of the rotating roller (608) is parallel to the axial direction of the old oil pipe.
  6. 6. The laser cleaning rust removing device for the outer wall of the old oil pipe according to claim 5, wherein a pair of sliding guide rails (610) are fixedly arranged on the fixed mounting seat (600) and two sliding guide rails are respectively arranged on two sides of the sliding mounting groove (604), the extending direction of the sliding guide rails (610) is perpendicular to the axial direction of the old oil pipe, sliding clamping blocks (611) which are matched with the sliding guide rails (610) are arranged at the positions, corresponding to the two sliding guide rails (610), of the bottom of the sliding mounting seat (603), namely, two sliding clamping blocks (611) are respectively clamped on the corresponding sliding guide rails (610), and the two sliding clamping blocks (611) are in sliding connection with the sliding guide rails (610).
  7. 7. The laser cleaning rust removing device for the outer wall of the old oil pipe according to claim 6, wherein a first organ protection cover (612) is arranged between two sliding installation seats (603), two ends of the first organ protection cover (612) are detachably connected with one side of the corresponding sliding installation seat (603) through bolts, the bottom of the first organ protection cover (612) is in sliding fit with the fixed installation seat (600), a second organ protection cover (613) is arranged between one side, deviating from the first organ protection cover (612), of each sliding installation seat (603) and the fixed installation seat (600) on the corresponding side, and two ends of the second organ protection cover (613) are detachably connected with one side of the corresponding sliding installation seat (603) and the fixed installation seat (600) through bolts respectively, and the bottom of the second organ protection cover (613) is in sliding fit with the fixed installation seat (600).
  8. 8. The laser cleaning rust removing device for the outer wall of the old oil pipe according to claim 7, wherein the driving piece (602) comprises a screw driving motor (614) and an RV reducer (615) which are fixed on the fixed mounting seat (600), an output shaft of the screw driving motor (614) is fixedly connected with an input shaft of the RV reducer (615), and an output shaft of the RV reducer (615) is fixedly connected with one end of a bidirectional reverse thread threaded rod (601) for driving the bidirectional reverse thread threaded rod (601) to rotate.
  9. 9. The laser cleaning and rust removing device for the outer wall of the old oil pipe according to claim 8, wherein a plurality of metal foot pads (616) are arranged on two sides of the bottom of the fixed mounting seat (600), one end of each metal foot pad (616) is fixedly connected with the fixed mounting seat (600), and the other end of each metal foot pad is fixedly connected with the ground through a bolt; The roller driving motor (609) and the screw driving motor (614) are servo motors.
  10. 10. The laser cleaning and rust removing method for the outer wall of the old oil pipe is characterized by comprising the steps of starting a ground rail moving module (20), moving a dust collection module (20), a lifting module (40), a horizontal moving module (30) and a laser cleaning module (10) to one end along the direction of the old oil pipe, then moving the laser cleaning module (10) and a dust collection pipeline (201) to a designated position through the horizontal moving module (30) and the lifting module (40), adjusting the positions of a pair of roller supporting modules (60) according to the diameter of the old oil pipe, lifting the old oil pipe on the pair of roller supporting modules (60), starting the laser cleaning module (10), emitting laser for cleaning, starting a dust collector (200), starting to collect dust through the dust collection pipeline (201), and driving the laser cleaning module (10) and the dust collection module (20) to right at a uniform speed through the ground rail moving module (50), and finishing cleaning the outer wall of the old oil pipe.

Description

Laser cleaning and rust removing device and method for outer wall of old oil pipe Technical Field The invention belongs to the technical field of pipeline cleaning equipment, relates to a laser cleaning and rust removing device for the outer wall of an old oil pipe, and further relates to a laser cleaning and rust removing method for the outer wall of the old oil pipe. Background The oil pipe is a special pipe for communicating the bottom of the well with the wellhead, and accounts for more than 10% of the total amount of the steel for the petroleum industry. Is a relatively large cost expenditure in the production operation of oil and gas fields. Typical outside diameter dimensions include phi 60.3mm, phi 73.02mm, phi 89.5mm, etc., typically about 10m in length. It follows that the oil pipe belongs to the class of steel pipes with smaller calibers. At present, a large number of old oil pipes exist in the extended oil fields, the Shanxi gas fields and the Changning natural gas fields, and the recycled old oil pipes are manufactured and reused, so that the method has considerable economic benefit for oil field enterprises and has wide market application prospect. After the oil pipe is used for a long time, oxidation, corrosion and other conditions can be generated due to external factors, and the oxidation or corrosion can cause a thicker rust layer to be attached to the outer wall of the metal oil pipe, so that the normal use of the oil pipe is affected. The surface rust removal is an important first process for remanufacturing of the old oil pipe, so that the service life of the oil pipe can be effectively prolonged, and the safety of the oil pipe can be improved. At present, the way of derusting the outer wall of the old oil pipe is divided into three ways. The first is by mechanical rust removal (i.e. by means of a wire brush, sand paper or electric sander) the second is by chemical rust removal (i.e. by means of a special rust remover, which corrodes the area of the surface to make the rust area dissolved and removed after reaction with the rust remover), and the third is by means of a sand blasting process (i.e. by sand blasting the surface thereof by means of a sand blasting device, which is also one of mechanical rust removal). However, in practical applications, these methods have the limitations that mechanical rust removal can directly remove rust on the surface, but the noise generated in the operation process is large, so that serious sound pollution is caused, chemical rust removal can penetrate deep into fine cracks to remove the rust, but chemicals are difficult to recycle and easily cause chemical pollution, and the sand blasting process can efficiently clean the surface, but is limited in use in closed spaces or small-caliber oil pipes, and has poor cleaning effect on fine pore diameters and relatively low efficiency. Therefore, the existing rust removal technology still faces a few challenges in practical application, especially in terms of environmental protection and cleaning effect. The Chinese patent (201911263478.2, publication No. CN 110883700B) discloses a sand blasting deruster for the outer wall of a small-diameter pipeline, which can finish the derusting of the outer wall of the pipeline through a sand blasting process when in use, but can not only have the condition that derusting sand is scattered when in use, but also can generate sound pollution when the sand impacts the outer wall of the pipeline, so that the problem of serious environmental pollution exists. The laser rust removing device for the outer wall of the steel pipe (the application number is CN202310368873.7, the publication number is CN 116197542A) is mainly used for removing rust on the outer wall of the steel pipe and comprises a structure of an operating platform, an upright post, a motor, a ball screw, a bearing fixing sleeve, a ball screw nut, a moving block, a roller mechanism, a fixed mounting circular ring, a circular laser rust remover, a protective cover and the like. Chinese patent (an on-line laser rust removal cleaning device and system) (application number is: CN201911196034.1, publication No. CN 110813934A) includes a disc body, in which a through hole through which a moving steel pipe passes is provided along an axial direction, the disc body having an installation end face; the laser device comprises a plurality of laser devices, wherein the laser devices can be installed on an installation end face in a radial moving manner along the disc body, the laser devices are arranged at intervals along the circumferential direction of the disc body, the laser emission ends of the laser devices face towards the steel pipe, and can emit laser beams for rust removal onto the outer wall of the steel pipe. Disclosure of Invention The invention aims to provide a laser cleaning rust removing device for the outer wall of an old oil pipe, which solves the problems of serious environmental pollution and poor clean