Laser cleaning and derusting device for outer wall of old oil pipe and cleaning and derusting method

Abstract

The invention discloses a laser cleaning derusting device for the outer wall of an old oil pipe, the laser cleaning derusting device comprises a ground rail moving module, and a dust collection module and a lifting module which are arranged on the ground rail moving module, the dust collection module comprises a dust collector arranged on the ground rail moving module and a dust collection pipeline connected with the dust collector, and a horizontal moving module is arranged on the lifting module; the horizontal moving module is provided with a laser cleaning module and a dust collecting pipeline. The laser cleaning device 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 in the direction of the old oil pipe; the horizontal moving module is used for enabling the laser cleaning module and the dust collecting pipeline to get close to or away from the outer wall of the old oil pipe. The problems that in the prior art, when rust is removed from the outer side wall of the old metal oil pipe, environment pollution is serious, and the cleaning effect is poor are solved. The invention further discloses a laser cleaning rust removal method for the outer wall of the old oil pipe.

Description

Technical Field

[0001] This invention belongs to the technical field of pipeline cleaning equipment, and relates to a laser cleaning and rust removal device for the outer wall of old oil pipes. This invention also relates to a laser cleaning and rust removal method for the outer wall of old oil pipes. Background Technology

[0002] Oil tubing is a specialized pipe connecting the bottom of a well to the wellhead, accounting for more than 10% of the total steel used in the petroleum industry. It represents a significant cost item in oil and gas field production operations. Typical outer diameters include Φ60.3mm, Φ73.02mm, and Φ89.5mm, with lengths typically around 10 meters. Therefore, oil tubing belongs to the category of small-diameter steel pipes. Currently, the Yanchang Oilfield, Shaanxi Gas Field, and Changning Natural Gas Field all possess a large number of used oil tubings. Remanufacturing and reusing these recycled used oil tubings offers considerable economic benefits to oilfield enterprises and has broad market application prospects.

[0003] After prolonged use, oil pipes may oxidize and corrode due to external factors. Oxidation or corrosion can cause a thick layer of rust to adhere to the outer wall of the metal oil pipe, thus affecting its normal use. Surface rust removal is the first and most important process in the remanufacturing of old oil pipes, which can effectively extend the service life of the oil pipes and improve their safety.

[0004] Currently, there are roughly three methods for removing rust from the outer walls of old oil pipes. The first is mechanical rust removal (physical removal using tools such as wire brushes, sandpaper, or electric grinders); the second is chemical rust removal (using specialized rust removers to corrode the rusted areas, causing them to react and dissolve); and the third is sandblasting (using sandblasting equipment to remove rust, which is also a type of mechanical rust removal). However, in practical applications, each method has its limitations: mechanical rust removal, while directly removing surface rust, generates significant noise, causing serious sound pollution; chemical rust removal, while reaching into tiny cracks, has chemicals that are difficult to recycle, easily causing chemical pollution; and sandblasting, while highly efficient at cleaning surfaces, is limited in use in enclosed spaces or small-diameter oil pipes, and is ineffective at cleaning small pores, resulting in relatively low efficiency. Therefore, existing rust removal technologies still face many challenges in practical applications, especially in terms of environmental protection and cleaning effectiveness.

[0005] Chinese patent "A Small Diameter Pipeline External Wall Sandblasting Rust Remover" (application number: 201911263478.2, publication number: CN110883700B) can remove rust from the outer wall of a pipe through sandblasting. However, during use, not only does the rust-removing sand fall off, but the sand also generates noise pollution when it hits the outer wall of the pipe, thus posing a serious problem of environmental pollution.

[0006] Chinese patent "A Laser Rust Removal Device for the Outer Wall of Steel Pipe" (application number: CN202310368873.7, publication number: CN116197542A) is mainly used for rust removal from the outer wall of steel pipes. It includes an operating table, column, motor, ball screw, bearing fixing sleeve, ball screw nut, moving block, roller mechanism, fixed installation ring, circular laser rust remover, protective cover and other structures. Although it can remove rust from the surface of steel pipes, it moves the steel pipe by ball screw, which requires a clamping device to hold the steel pipe. At the same time, since the steel pipe itself does not rotate, the surface of the steel pipe at the clamping point cannot be effectively rusted.

[0007] Chinese patent "An Online Laser Rust Removal and Cleaning Device and System" (application number: CN201911196034.1, publication number: CN110813934A) includes: a disc body with a through hole along the axial direction for a movable steel pipe to pass through, and the disc body having a mounting end face; multiple lasers, which are movably mounted on the mounting end face along the radial direction of the disc body, and the multiple lasers are arranged at intervals along the circumference of the disc body, with the laser emitting end of each laser facing the steel pipe and capable of emitting a laser beam for rust removal onto the outer wall of the steel pipe. During use, the steel pipe itself does not rotate, while the position of the laser beam emitted is fixed, thus it has the problem of not being able to effectively remove rust from the surface of the steel pipe. Summary of the Invention

[0008] The purpose of this invention is to provide a laser cleaning and rust removal device for the outer wall of old oil pipes, which solves the problems of serious environmental pollution and poor cleaning effect when removing rust from the outer wall of old metal oil pipes in the prior art.

[0009] Another object of the present invention is to provide a laser cleaning and rust removal method for the outer wall of old oil pipes.

[0010] The technical solution adopted in this invention is a laser cleaning and rust removal device for the outer wall of old oil pipes, comprising a ground rail moving module and a dust collection module and a lifting module mounted on the ground rail moving module. The dust collection module includes a dust collector mounted on the ground rail moving module and a dust collection pipe connected to the dust collector. A horizontal moving module is mounted on the lifting module, and a laser cleaning module and a dust collection pipe are mounted on the horizontal moving module. The device also includes a pair of roller support modules mounted on one side of the ground rail moving module for supporting and driving the rotation of the old oil pipe to be cleaned. The ground rail moving module is used to enable 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. The horizontal moving module is used to enable the laser cleaning module and the dust collection pipe to move closer to or further away from the outer wall of the old oil pipe.

[0011] The invention is further characterized in that:

[0012] The laser cleaning module includes a laser cleaning machine and a laser cleaning handpiece connected to the laser cleaning machine. The laser cleaning handpiece is mounted on a horizontal moving module, which is used to move the laser cleaning handpiece and the dust collection pipe closer to or further away from the outer wall of the old oil pipe.

[0013] Laser cleaning machines are used to generate lasers, and laser cleaning tools are used to emit lasers to clean the outer walls of old oil pipes;

[0014] Dust collectors and dust collection pipes are used to collect the fumes and dust generated during the cleaning of the outer walls of old oil pipes;

[0015] The lifting module is used to drive the horizontal moving module to lift and lower, so that the laser cleaning tool and dust collection pipe can move closer to or away from the outer wall of the old oil pipe;

[0016] The track distribution direction of the ground rail moving module is the same as the placement direction of the old oil pipe. A pair of roller support modules are located at both ends of one side of the ground rail moving module, and the two ends of the old oil pipe are supported on the two roller support modules respectively.

[0017] The roller support module includes a fixed mounting base fixed to one side of the ground rail moving module. The fixed mounting base has symmetrically sliding sliding mounting bases at both ends. The sliding direction of the sliding mounting bases on the fixed mounting base is perpendicular to the axis of the old oil pipe. The fixed mounting base also has a sliding mounting groove, within which a bidirectional reverse threaded rod is installed. The two ends of the bidirectional reverse threaded rod pass sequentially through the corresponding sliding mounting groove and the fixed mounting base, respectively. The bidirectional reverse threaded rod is rotatably connected to the fixed mounting base. A threaded slider, which mates with the bidirectional reverse threaded rod, is fixedly installed at the bottom of each sliding mounting groove. The bidirectional reverse threaded rod passes through the corresponding threaded slider and is threadedly connected to it. Each sliding mounting base has a roller assembly. The old oil pipe is placed on the roller assembly. The roller axis of the roller assembly is parallel to the axis of the old oil pipe. A driving component is also fixedly installed on one side of the fixed mounting base. The driving component is fixedly connected to one end of the bidirectional reverse threaded rod located on the same side of the fixed mounting base.

[0018] The bidirectional reverse threaded rod has a positive thread extending from the middle of the bidirectional reverse threaded rod to one end and a reverse thread extending from the middle of the bidirectional reverse threaded rod to the other end. The threaded slider at the bottom of one sliding mounting seat is threadedly connected to the end of the bidirectional reverse threaded rod with the positive thread, and the threaded slider at the bottom of the other sliding mounting seat is threadedly connected to the end of the bidirectional reverse threaded rod with the reverse thread, so as to realize that a pair of sliding mounting seats can move closer or further apart at the same time.

[0019] The roller assembly includes a roller mounting bracket fixedly mounted on a sliding mounting base. A rotating roller is rotatably mounted on the roller mounting bracket. One of the roller assemblies has a roller drive motor mounted on the roller mounting bracket. The roller drive motor is fixedly connected to the roller mounting bracket. The output shaft of the roller drive motor passes through the roller mounting bracket and is fixedly connected to the corresponding rotating roller. The output shaft of the roller drive motor is rotatably connected to the roller mounting bracket. The roller drive motor is used to drive the rotating roller to rotate. The axial direction of the rotating roller is parallel to the axial direction of the old oil pipe.

[0020] A pair of sliding guide rails are fixedly provided on the fixed mounting base, and the two are located on both sides of the sliding mounting groove. The extension direction of the sliding guide rails is perpendicular to the axis of the old oil pipe. At the bottom of the sliding mounting base, corresponding to the positions of the two sliding guide rails, there are sliding blocks that cooperate with the sliding guide rails. That is, there are two sliding blocks at the bottom of the sliding mounting base. The two sliding blocks are respectively engaged on the corresponding sliding guide rails and are slidably connected to the sliding guide rails.

[0021] A first bellows cover is provided between two sliding mounting seats. The two ends of the first bellows cover are detachably connected to one side of the corresponding sliding mounting seat by bolts. The bottom of the first bellows cover is slidably engaged with the fixed mounting seat. A second bellows cover is provided between the side of each sliding mounting seat away from the first bellows cover and the corresponding fixed mounting seat. The two ends of the second bellows cover are detachably connected to one side of the corresponding sliding mounting seat and the fixed mounting seat by bolts. The bottom of the second bellows cover is slidably engaged with the fixed mounting seat.

[0022] The driving components include a screw drive motor and an RV reducer fixed on a fixed mounting base. The output shaft of the screw drive motor is fixedly connected to the input shaft of the RV reducer, and the output shaft of the RV reducer is fixedly connected to one end of a bidirectional reverse threaded rod for driving the bidirectional reverse threaded rod to rotate.

[0023] The bottom of the fixed mounting base is equipped with several metal feet on both sides. One end of the metal feet is fixedly connected to the fixed mounting base, and the other end is fixedly connected to the ground by bolts.

[0024] Both the roller drive motor and the screw drive motor are servo motors.

[0025] The laser cleaning and rust removal method for the outer wall of old oil pipes uses the aforementioned laser cleaning and rust removal device for the outer wall of old oil pipes. Specifically, the following steps are taken: The ground rail moving module is activated, and the dust collection module, lifting module, horizontal moving module, and laser cleaning module are moved to one end along the direction of the old oil pipe. Then, the laser cleaning module and dust collection pipe are moved to the designated position via the horizontal moving module and lifting module. According to the diameter of the old oil pipe, the position of a pair of roller support modules is adjusted, and the old oil pipe is hoisted and placed on the pair of roller support modules. The laser cleaning module is activated, emitting laser light for cleaning. At the same time, the dust collector is activated, and dust is collected through the dust collection pipe. Simultaneously, the ground rail moving module drives the laser cleaning module and dust collection module to move to the right at a uniform speed, completing the cleaning of the outer wall of the old oil pipe.

[0026] The beneficial effects of this invention are:

[0027] This invention achieves the cleaning of the outer wall of old oil pipes by setting up a laser cleaning machine and laser cleaning tools. It handles the smoke and dust during the laser cleaning process by setting up a dust collector and dust collection pipe. The positions of the laser cleaning tools and dust collection pipes are adjustable by a lifting module and a horizontal moving module to accommodate old oil pipes of different diameters. A ground rail moving module allows the dust collection module, lifting module, horizontal moving module, and laser cleaning tools to move along the direction of the old oil pipe. A pair of roller support modules allows for the placement and rotation of the old oil pipe, facilitating the cleaning of its outer wall. Compared to traditional mechanical and chemical rust removal, this invention has the advantages of low noise and no chemical byproduct emissions, solving the problems of severe environmental pollution and poor cleaning effect in current rust removal of the outer walls of old metal oil pipes. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention;

[0029] Figure 2 This is a partial structural diagram of the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 1 ;

[0030] Figure 3 This is a schematic diagram of the roller support module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 1 ;

[0031] Figure 4 This is a schematic diagram of the roller support module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 2 ;

[0032] Figure 5 This is a schematic diagram of the roller support module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 3 ;

[0033] Figure 6 This is a schematic diagram of the roller support module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 4 ;

[0034] Figure 7 This is a schematic diagram of the horizontal moving module and the lifting module in the laser cleaning and rust removal device for the outer wall of old oil pipes of the present invention;

[0035] Figure 8 This is a schematic diagram of the ground rail moving module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 1 ;

[0036] Figure 9This is a schematic diagram of the ground rail moving module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 2 ;

[0037] Figure 10 This is a schematic diagram of the ground rail moving module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 3 ;

[0038] Figure 11 This is a schematic diagram of the ground rail moving module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 4 ;

[0039] Figure 12 This is a schematic diagram of the ground rail moving module in the laser cleaning and rust removal device for the outer wall of old oil pipes according to the present invention. Figure 5 .

[0040] In the diagram: 10-Laser cleaning module, 100-Laser cleaning machine, 101-Laser cleaning handpiece, 20-Dust collection module, 200-Dust collector, 201-Dust collection pipe, 30-Horizontal moving module, 300-Horizontal support arm, 301-Horizontal slide table, 40-Lifting module, 400-Lifting support arm, 401-Vertical slide table, 50-Ground rail moving module, 500-Ground rail track, 501-First mounting plate, 502-Second mounting plate, 503-Connecting plate, 504-Drag chain, 505-Ground rail drive motor, 506-Fixed mounting slot, 507-Limit slide rail, 508-Chain groove, 509-Rack and pinion, 510-Limiting block, 511-Gear, 512-Protective cover. 513-Connector, 514-Horizontal plate, 515-Vertical plate, 516-Plate, 60-Roller support module, 600-Fixed mounting base, 601-Double reverse threaded rod, 602-Driver, 603-Sliding mounting base, 604-Sliding mounting groove, 605-Threaded slider, 606-Roller assembly, 607-Roller mounting bracket, 608-Rotating roller, 609-Roller drive motor, 610-Sliding guide rail, 611-Sliding block, 612-First bellows protective cover, 613-Second bellows protective cover, 614-Screw drive motor, 615-RV reducer, 616-Metal foot pad, 70-Automation equipment control cabinet, 71-Isolation room, 72-Entry door. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] This invention relates to a laser cleaning and rust removal device for the outer wall of old oil pipes, the structure of which is as follows: Figure 1As shown, it includes a ground rail moving module 50 and a dust collection module 20 and a lifting module 40 mounted on the ground rail moving module 50, such as... Figure 2 As shown, the dust collection module 20 includes a dust collector 200 and a dust collection pipe 201 connected to the dust collector 200, which are mounted on the ground rail moving module 50. The dust collector 200 and the dust collection pipe 201 are used to collect the dust generated when cleaning the outer wall of the old oil pipe. The lifting module 40 is equipped with a horizontal moving module 30, which is equipped with a laser cleaning module 10 and the dust collection pipe 201. It also includes a pair of roller support modules 60 mounted on one side of the ground rail moving module 50 for supporting and driving the rotation of the old oil pipe to be cleaned. The ground rail moving module 50 is used to move 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. The horizontal moving module 30 is used to move the laser cleaning module 10 and the dust collection pipe 201 closer to or further away from the outer wall of the old oil pipe.

[0044] The laser cleaning module 10 includes a laser cleaning machine 100 and a laser cleaning handpiece 101 connected to the laser cleaning machine 100. The laser cleaning machine 100 is used to generate lasers. The laser cleaning machine 100 and the ground rail moving module 50 are fixed on the same plane. The laser cleaning handpiece 101 is used to emit lasers to clean the outer wall of the old oil pipe. The laser cleaning handpiece 101 is set on the horizontal moving module 30. The horizontal moving module 30 is used to make the laser cleaning handpiece 101 and the dust collection pipe 201 approach or move away from the outer wall of the old oil pipe.

[0045] Laser cleaning machine 100 is used to generate laser, and laser cleaning handpiece 101 is used to emit laser to clean the outer wall of old oil pipe;

[0046] Dust collector 200 and dust collection pipe 201 are used to collect the dust generated when cleaning the outer wall of old oil pipes;

[0047] The lifting module 40 is used to drive the horizontal moving module 30 to lift, so that the laser cleaning hand tool 101 and the dust collection pipe 201 can move closer to or away from the outer wall of the old oil pipe.

[0048] The track distribution direction of the ground rail moving module 50 is the same as the placement direction of the old oil pipe. A pair of roller support modules 60 are located at both ends of one side of the ground rail moving module 50, and the two ends of the old oil pipe are supported on the two roller support modules 60 respectively.

[0049] like Figure 3-6As shown, the roller support module 60 includes a fixed mounting base 600 fixed to one side of the ground rail moving module 50. Sliding mounting bases 603 are symmetrically slidably disposed at both ends of the fixed mounting base 600. The sliding direction of the sliding mounting bases 603 on the fixed mounting base 600 is perpendicular to the axis of the old oil pipe. A sliding mounting groove 604 is also provided on the fixed mounting base 604. A bidirectional reverse threaded rod 601 is disposed within the sliding mounting groove 604. Both ends of the bidirectional reverse threaded rod 601 pass sequentially through the corresponding sliding mounting groove 604 and the fixed mounting base 600. The bidirectional reverse threaded rod 601 is rotatably connected to the fixed mounting base 600. Each sliding mounting groove 603... 04. Each of the bottoms is fixedly provided with a threaded slider 605 that cooperates with the bidirectional reverse threaded rod 601. The bidirectional reverse threaded rod 601 passes through the corresponding threaded slider 605 and is threadedly connected to the threaded slider 605. Each sliding mounting base 603 is provided with a roller assembly 606. The old oil pipe is placed on the roller assembly 606. The roller axis of the roller assembly 606 is parallel to the axis of the old oil pipe. A driving component 602 is also fixedly provided on one side of the fixed mounting base 600. The driving component 602 is fixedly connected to one end of the bidirectional reverse threaded rod 601 located on the same side of the fixed mounting base 600. The driving component 602 is used to drive the bidirectional reverse threaded rod 601 to rotate.

[0050] The bidirectional reverse threaded rod 601 is provided with a positive thread extending from the middle of the bidirectional reverse threaded rod 601 to one end and a reverse thread extending from the middle of the bidirectional reverse threaded rod 601 to the other end. The threaded slider 605 at the bottom of one sliding mounting seat 603 is threadedly connected to the end of the bidirectional reverse threaded rod 601 with the positive thread, and the threaded slider 605 at the bottom of the other sliding mounting seat 603 is threadedly connected to the end of the bidirectional reverse threaded rod 601 with the reverse thread, so as to realize that a pair of sliding mounting seats 603 can move closer or further away at the same time.

[0051] In use, the bidirectional reverse thread rod 601 is driven to rotate by the drive component 602, which in turn drives the threaded slider 605 at the bottom of a pair of sliding mounting seats 603 to move, thereby causing the pair of sliding mounting seats 603 to move closer or further away at the same time, thus enabling the placement of old oil pipes of different diameters.

[0052] The roller assembly 606 includes a roller mounting bracket 607 fixedly mounted on a sliding mounting base 603. A rotating roller 608 is rotatably mounted on the roller mounting bracket 607. A roller drive motor 609 is provided on one of the roller mounting brackets 607 in the roller assembly 606. The roller drive motor 609 is fixedly connected to the roller mounting bracket 607. The output shaft of the roller drive motor 609 passes through the roller mounting bracket 607 and is fixedly connected to the corresponding rotating roller 608. The output shaft of the roller drive motor 609 is rotatably connected to the roller mounting bracket 607. The roller drive motor 609 is used to drive the rotating roller 608 to rotate. The axial direction of the rotating roller 608 is parallel to the axial direction of the old oil pipe.

[0053] When in use, when the old metal oil pipe is placed on the rotating roller 608, the roller drive motor 609 drives one of the rotating rollers 608 to rotate, thereby making the old metal oil pipe and the other rotating roller 608 rotate synchronously, thus realizing the rotation of the old metal oil pipe.

[0054] A pair of sliding guide rails 610 are fixedly provided on the fixed mounting base 600, and the two are respectively located on both sides of the sliding mounting groove 604. The extension direction of the sliding guide rails 610 is perpendicular to the axis of the old oil pipe. At the bottom of the sliding mounting base 603, corresponding to the positions of the two sliding guide rails 610, there are sliding blocks 611 that cooperate with the sliding guide rails 610. That is, there are two sliding blocks 611 at the bottom of the sliding mounting base 603. The two sliding blocks 611 are respectively engaged on the corresponding sliding guide rails 610 and are slidably connected with the sliding guide rails 610.

[0055] In use, the sliding block 611 and the sliding guide rail 610 cooperate to allow the sliding mounting base 603 to slide stably on the fixed mounting base 600, thereby further facilitating the placement of old metal oil pipes of different diameters.

[0056] Because fumes are generated during laser cleaning, most of the fumes can be collected by the dust extraction module 20, but a small portion cannot be collected. To prevent this portion of fumes from falling into the sliding mounting groove 604 and affecting the normal use of the equipment, the present invention provides a first bellows cover 612 between the two sliding mounting seats 603. The two ends of the first bellows cover 612 are detachably connected to one side of the corresponding sliding mounting seat 603 by bolts. The bottom of the first bellows cover 612 is slidably engaged with the fixed mounting seat 600. A second bellows cover 613 is provided between the side of each sliding mounting seat 603 away from the first bellows cover 612 and the corresponding fixed mounting seat 600. The two ends of the second bellows cover 613 are detachably connected to one side of the corresponding sliding mounting seat 603 and the fixed mounting seat 600 by bolts. The bottom of the second bellows cover 613 is slidably engaged with the fixed mounting seat 600.

[0057] Both the first bellows cover 612 and the second bellows cover 613 are bellows covers that can achieve the functions of the present invention using existing technology. The design of the first bellows cover 612 and the second bellows cover 613 can effectively prevent smoke and dust from falling into the sliding mounting groove 604.

[0058] During laser cleaning, both the first bellows cover 612 and the second bellows cover 613 are extended to easily block smoke and dust. When not in use, the first bellows cover 612 and the second bellows cover 613 can be removed for cleaning.

[0059] The driving component 602 includes a screw drive motor 614 and an RV reducer 615 fixed on the fixed mounting base 600. The output shaft of the screw drive motor 614 is fixedly connected to the input shaft of the RV reducer 615. The output shaft of the RV reducer 615 is fixedly connected to one end of the bidirectional reverse threaded rod 601 for driving the bidirectional reverse threaded rod 601 to rotate.

[0060] The RV reducer 615 can be an existing RV reducer 615 that can achieve the function of the present invention. The setting of the RV reducer 615 can change the output direction of the screw drive motor 614, so as to facilitate the installation of the screw drive motor 614.

[0061] The fixed mounting base 600 has several metal feet 616 on both sides of its bottom. One end of each metal foot 616 is fixedly connected to the fixed mounting base 600, and the other end is fixedly connected to the ground by bolts.

[0062] During installation, threaded holes can be drilled in the metal foot pad 616 and the ground, and then the mounting bracket 600 can be fixed to the ground with bolts, which facilitates the installation of the mounting bracket 600.

[0063] Both the roller drive motor 609 and the screw drive motor 614 are servo motors.

[0064] The laser cleaning and rust removal method for the outer wall of old oil pipes uses the aforementioned laser cleaning and rust removal device for the outer wall of old oil pipes. Specifically, the following steps are taken: The ground rail moving module 20 is activated, and the dust suction module 20, lifting module 40, horizontal moving module 30, and laser cleaning module 10 are moved to one end along the direction of the old oil pipe. Then, the horizontal moving module 30 and lifting module 40 are used to move the laser cleaning module 10 and the dust collection pipe 201 to the designated position. According to the diameter of the old oil pipe, the position of a pair of roller support modules 60 is adjusted, and the old oil pipe is hoisted and placed on the pair of roller support modules 60. The laser cleaning module 10 is activated, and it emits laser light for cleaning. At the same time, the dust collector 200 is activated, and dust is collected through the dust collection pipe 201. Simultaneously, the ground rail moving module 50 drives the laser cleaning module 10 and the dust suction module 20 to move to the right at a uniform speed, completing the cleaning of the outer wall of the old oil pipe.

[0065] The working principle of this embodiment is as follows: the outer wall of the old oil pipe is cleaned by setting up a laser cleaning machine 100 and a laser cleaning handpiece 101; the dust collector 200 and dust collection pipe 201 are used to handle the smoke and dust during the laser cleaning process; the position of the laser cleaning handpiece 101 and the dust collection pipe 201 is adjusted by a lifting module 40 and a horizontal moving module 30 to accommodate old oil pipes of different diameters; the dust suction module 20, the lifting module 40, the horizontal moving module 30 and the laser cleaning handpiece 101 can move along the direction of the old oil pipe by setting up a ground rail moving module 50; and the old oil pipe is placed and rotated by a pair of roller support modules 60 to facilitate the cleaning of the outer wall of the old oil pipe. Compared with traditional mechanical rust removal and chemical rust removal, this invention has the advantages of low noise and no chemical by-product emissions, solving the problem of serious environmental pollution when removing rust from the outer wall of old metal oil pipes.

[0066] Example 2

[0067] The laser cleaning and rust removal method for the outer wall of old oil pipes adopts the laser cleaning and rust removal device for the outer wall of old oil pipes in Example 1, and is implemented according to the following steps:

[0068] Step S1: Activate the ground rail moving module 50 and move the vacuuming module 20, lifting module 40, horizontal moving module 30 and laser cleaning hand tool 101 to the far left along the direction of the old oil pipe;

[0069] Step S2: Based on the diameter of the old oil pipe to be cleaned, the laser cleaning handpiece 101 and the dust collection pipe 201 are moved to the designated position by the horizontal moving module 30 and the lifting module 40.

[0070] Step S3: Adjust the position of a pair of roller support modules 60 according to the diameter of the old oil pipe to be cleaned;

[0071] Step S4: Hoist the old oil pipe to be cleaned onto a pair of roller support modules 60;

[0072] Step S5: The old oil pipe to be cleaned is driven to rotate at a constant speed by a pair of rollers supporting the module 60.

[0073] Step S6: Start the laser cleaning machine 100 and the laser cleaning handpiece 101. The laser cleaning handpiece 101 emits laser to clean, and at the same time, the dust collector 200 is started to collect dust through the dust collection pipe 201. At the same time, the laser cleaning handpiece 101 and the dust suction module 20 are moved to the right at a uniform speed by the ground rail moving module 50 to complete the cleaning of the outer wall of the old oil pipe.

[0074] Step S7: After cleaning is completed, turn off the laser cleaning machine 100, laser cleaning handpiece 101, dust collector 200 and a pair of roller support modules 60, and use the ground rail moving module 50 to drive the laser cleaning handpiece 101 and the dust collection module 20 to move to the left at a constant speed, and then turn off the ground rail moving module 50.

[0075] Step S8: After the old oil pipe stops rotating after cleaning, lower a pair of roller support modules 60 to complete the cleaning of the outer wall of the old oil pipe.

[0076] Example 3

[0077] Based on Embodiment 2, the laser cleaning machine 100 of the present invention can be a laser cleaning machine 100 that can achieve the function of the present invention in the prior art; the laser cleaning hand tool 101 can be a laser cleaning hand tool 101 that can achieve the function of the present invention in the prior art; and the dust collector 200 can be a dust collector 200 that can achieve the function of the present invention in the prior art.

[0078] like Figure 7 As shown, the lifting module 40 includes a lifting support arm 400 and a vertical slide 401. The lifting support arm 400 is mounted on the ground rail moving module 50, and the vertical slide 401 is vertically mounted on the lifting support arm 400. The horizontal moving module 30 includes a horizontal support arm 300 and a horizontal slide 301. One end of the horizontal support arm 300 is fixedly connected to the vertical slide 401, and the horizontal slide 301 is horizontally mounted at the other end of the horizontal support arm 300.

[0079] The horizontal slide 301 can be an electric slide that can achieve the function of the present invention in the prior art.

[0080] Electric slide tables are a type of linear slide table, consisting of a linear slide table and a motor. They are generally divided into two types, as follows:

[0081] Ball screw type electric slide: This type of slide converts rotary motion into linear motion through a ball screw, and is suitable for applications requiring high-precision positioning.

[0082] Synchronous belt type electric slide table: Synchronous belt type slide table achieves linear motion through belt and linear guide rail, and is suitable for applications requiring large stroke and high speed.

[0083] The working principle of an electric slide table is mainly based on motor drive, which achieves linear motion through a transmission system. An electric slide table typically consists of precision linear guides, a high-precision transmission system, an electric drive unit, and a control system. Its working principle can be summarized as follows: When the electric slide table starts, the control system receives instructions, controls the motor to operate through the electric drive system, and the transmission system transmits power to the slide table, enabling it to achieve precise positioning and movement along the linear guide.

[0084] The electric slides in all embodiments of the present invention are ball screw type electric slides.

[0085] Preferably, one end of the horizontal support arm 300 is fixedly connected to the slide in the vertical slide 401, so that the height of the horizontal support arm 300 can be adjusted when the vertical slide 401 is started.

[0086] The laser cleaning tool 101 is fixedly mounted on the slide of the horizontal slide 301, so that when the horizontal slide 301 is started, the distance between the laser cleaning tool 101 and the old oil pipe can be adjusted, so that the laser cleaning tool 101 can fit with the outer wall of the old oil pipe for easy cleaning.

[0087] The dust collection pipe 201 is fixedly installed on the horizontal support arm 300, and one end of the dust collection pipe 201 is engaged with the outer wall of the old oil pipe and the laser cleaning tool 101 to facilitate the collection of dust generated during the laser cleaning process.

[0088] Example 4

[0089] Based on Embodiment 2, the ground rail moving module 50 can adopt a ground rail structure that can realize the function of the present invention in the prior art, or it can adopt the ground rail structure described below.

[0090] like Figures 8 to 12As shown, the ground rail moving module 50 includes a ground rail track 500, a first mounting plate 501, a second mounting plate 502, a connecting plate 503, a drag chain 504, and a ground rail drive motor 505. The ground rail track 500 is provided with a fixed mounting groove 506 and a pair of limiting slide rails 507. The pair of limiting slide rails 507 are respectively located on both sides of the fixed mounting groove 506. The bottom of the fixed mounting groove 506 is provided with a chain groove 508, and a rack 509 is provided on one side inside the fixed mounting groove 506. The first mounting plate 501, the second mounting plate 502, and the connecting plate 503 are sequentially arranged above the ground rail track 500. The bottom sides of the second mounting plate 502 are respectively provided with a plurality of limiting blocks 510 that cooperate with the pair of limiting slide rails 507. One end of the limiting block 510 is engaged with the limiting slide rail 507 and slidably connected to the limiting slide rail 507. The other end is fixedly connected to the bottom of the second mounting plate 502. The ground rail drive motor 505 is fixedly mounted on the second mounting plate 502. The output shaft of the ground rail drive motor 505 passes through the second mounting plate 502 and is rotatably connected to the second mounting plate 502. A gear 511 is fixedly mounted on the output shaft of the ground rail drive motor 505. The gear 511 meshes with the rack 509. The first mounting plate 501 is clearance-fitted with the ground rail 500. One end of the first mounting plate 501 is fixedly connected to one end of the second mounting plate 502. The connecting plate 503 is clearance-fitted with the ground rail 500. One end of the connecting plate 503 is fixedly connected to the other end of the second mounting plate 502. The drag chain 504 is set in the chain groove 508 and is detachably connected to the chain groove 508. One end of the drag chain 504 is fixedly connected to the other end of the connecting plate 503.

[0091] In use, the ground rail drive motor 505 drives the gear 511 to rotate, which in turn causes the gear 511 to move along the rack 509, thereby causing the first mounting plate 501, the second mounting plate 502 and the connecting plate 503 to move along the rack 509.

[0092] When the connecting plate 503 moves to the left, the cable chain 504 can disengage from the chain groove 508, and when the connecting plate 503 moves to the right, it can return to the chain groove 508. The arrangement of the cable chain 504 and the chain groove 508 facilitates the routing of cables.

[0093] The ground rail drive motor 505 can be a servo motor that can achieve the function of the present invention in the prior art.

[0094] Preferably, the lifting support arm 400 is mounted on the second mounting plate 502 and one end is fixedly connected to the second mounting plate 502, and the dust collector 200 is mounted on the first mounting plate 501 and is detachably connected to the first mounting plate 501 by bolts.

[0095] Preferably, the direction of rack 509 is consistent with the direction of the old oil pipe.

[0096] By mounting the lifting support arm 400 on the second mounting plate 502 and the dust collector 200 on the first mounting plate 501, when the ground rail drive motor 505 is started, the dust suction module 20, the lifting module 40, the horizontal moving module 30 and the laser cleaning hand tool 101 can move along the rack 509 direction, that is, along the direction of the old oil pipe, so as to facilitate the cleaning and rust removal of the outer wall of the old oil pipe.

[0097] Among them, the ground rail 500 is provided with a pair of protective covers 512 for protecting the limit slide rail 507. The protective covers 512 are set in conjunction with the limit block 510. The protective covers 512 are used to prevent smoke and dust from falling on the limit slide rail 507, thereby protecting the limit slide rail 507 and the limit block 510.

[0098] like Figure 11 As shown, the bottom of the ground track 500 is provided with several connecting parts 513 on both sides. The connecting parts 513 include a horizontal plate 514, a vertical plate 515 and a pad 516. The vertical plate 515 is set on the horizontal plate 514 and is fixedly connected to the horizontal plate 514. One end of the horizontal plate 514 is fixedly connected to the bottom of the ground track 500, and one end of the vertical plate 515 is fixedly connected to the side of the ground track 500. The pad 516 is set at the bottom of the other end of the horizontal plate 514 and is fixedly connected to the horizontal plate 514 by bolts. The pad 516 can be fixedly connected to the ground by bolts.

[0099] During installation, threaded holes can be drilled in the pad 516 and the ground, and then the pad 516 can be fixed to the ground with bolts, thereby fixing the ground rail 500 to the ground, which facilitates the installation of the ground rail 500.

[0100] Example 5

[0101] Based on Example 4, such as Figure 1 As shown, for ease of control, the present invention also includes an automated equipment control cabinet 70, which has a built-in servo motor controller and PLC for controlling the laser cleaning module 10, the dust collection module 20, the horizontal movement module 30, the lifting module 40, the ground rail movement module 50, and a pair of roller support modules 60.

[0102] To facilitate the prevention of unauthorized personnel from entering the work area, the present invention also includes an isolation chamber 71 constructed of several guardrails. The laser cleaning module 10, the dust collection module 20, the horizontal movement module 30, the lifting module 40, the ground rail movement module 50, and a pair of roller support modules 60 are all installed inside the isolation chamber 71. The laser cleaning machine 100 and the automation equipment control cabinet 70 are installed outside the isolation chamber 71.

[0103] One of the guardrails is equipped with an entrance door 72, which is equipped with a safety interlock device. The safety interlock device is connected to the automation equipment control cabinet 70.

[0104] Safety interlocking devices are automated devices used for safety purposes. Interlocking devices establish a mutually restrictive relationship between two actions through mechanical or electrical mechanisms. In production processes, interlocking devices are widely used to ensure normal operation, achieve automatic control, and prevent accidents.

[0105] When the entrance door 72 is opened, the safety interlock device will sound an alarm and the equipment can be shut down via the automation equipment control cabinet 70.

Claims

1. A laser cleaning and rust removal device for the outer wall of old oil pipes, characterized in that, The system includes a ground-rail moving module (50), a dust-collecting module (20), and a lifting module (40) mounted on the ground-rail moving module (50). The dust-collecting module (20) includes a dust collector (200) mounted on the ground-rail moving module (50) and a dust collection pipe (201) connected to the dust collector (200). The lifting module (40) is equipped with a horizontal moving module (30), and the horizontal moving module (30) is equipped with a laser cleaning module (10) and a dust collection pipe. (201) also includes a pair of roller support modules (60) set on one side of the ground rail moving module (50) for supporting and driving the rotation of the old oil pipe to be cleaned; the ground rail moving module (50) is used to enable the dust suction module (20), the lifting module (40), the horizontal moving module (30) and the laser cleaning module (10) to move along the direction of the old oil pipe; the horizontal moving module (30) is used to enable the laser cleaning module (10) and the dust collection pipe (201) to move closer to or further away from the outer wall of the old oil pipe.

2. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 1, characterized in that, The laser cleaning module (10) includes a laser cleaning machine (100) and a laser cleaning handpiece (101) connected to the laser cleaning machine (100). The laser cleaning handpiece (101) is mounted on a horizontal moving module (30). The horizontal moving module (30) is used to move the laser cleaning handpiece (101) and the dust collection pipe (201) closer to or further away from the outer wall of the old oil pipe. A laser cleaning machine (100) is used to generate lasers, and a laser cleaning handpiece (101) is used to emit lasers to clean the outer wall of old oil pipes; The dust collector (200) and dust collection pipe (201) are used to collect the dust generated when cleaning the outer wall of old oil pipes; The lifting module (40) is used to drive the horizontal moving module (30) to lift, so that the laser cleaning hand tool (101) and the dust collection pipe (201) can move closer to or further away from the outer wall of the old oil pipe; The track distribution direction of the ground rail moving module (50) is the same as the placement direction of the old oil pipe. A pair of roller support modules (60) are located at both ends of one side of the ground rail moving module (50), and the two ends of the old oil pipe are supported on the two roller support modules (60).

3. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 2, characterized in that, The roller support module (60) includes a fixed mounting base (600) fixed to one side of the ground rail moving module (50). The fixed mounting base (600) has sliding mounting bases (603) symmetrically slidably mounted at both ends. The sliding direction of the sliding mounting bases (603) on the fixed mounting base (600) is perpendicular to the axis of the old oil pipe. The fixed mounting base (600) also has a sliding mounting groove (604). A bidirectional reverse threaded rod (601) is installed in the sliding mounting groove (604). Both ends of the bidirectional reverse threaded rod (601) pass through the corresponding sliding mounting groove (604) and the fixed mounting base (600) in sequence. The bidirectional reverse threaded rod (601) rotates with the fixed mounting base (600). The connection is as follows: at the bottom of each sliding mounting groove (604), a threaded slider (605) is fixedly provided to cooperate with the bidirectional reverse threaded rod (601). The bidirectional reverse threaded rod (601) passes through the corresponding threaded slider (605) and is threadedly connected to the threaded slider (605). Each sliding mounting seat (603) is provided with a roller assembly (606). The old oil pipe is placed on the roller assembly (606). The roller axis of the roller assembly (606) is parallel to the axis of the old oil pipe. A driving member (602) is also fixedly provided on one side of the fixed mounting seat (600). The driving member (602) is fixedly connected to one end of the bidirectional reverse threaded rod (601) located on the same side of the fixed mounting seat (600).

4. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 3, characterized in that, The bidirectional reverse threaded rod (601) is provided with a positive thread extending from the middle of the bidirectional reverse threaded rod (601) to one end and a reverse thread extending from the middle of the bidirectional reverse threaded rod (601) to the other end. The threaded slider (605) at the bottom of one of the sliding mounting seats (603) is threadedly connected to the end of the bidirectional reverse threaded rod (601) with the positive thread, and the threaded slider (605) at the bottom of the other sliding mounting seat (603) is threadedly connected to the end of the bidirectional reverse threaded rod (601) with the reverse thread, so as to realize that a pair of sliding mounting seats (603) can move closer or further away at the same time.

5. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 4, characterized in that, The roller assembly (606) includes a roller mounting bracket (607) fixedly mounted on a sliding mounting base (603). A rotating roller (608) is rotatably mounted on the roller mounting bracket (607). A roller drive motor (609) is provided on the roller mounting bracket (607) in one of the roller assemblies (606). The roller drive motor (609) is fixedly connected to the roller mounting bracket (607). The output shaft of the roller drive motor (609) passes through the roller mounting bracket (607) and is fixedly connected to the corresponding rotating roller (608). The output shaft of the roller drive motor (609) is rotatably connected to the roller mounting bracket (607). The roller drive motor (609) is used to drive the rotating roller (608) to rotate. The axial direction of the rotating roller (608) is parallel to the axial direction of the old oil pipe.

6. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 5, characterized in that, A pair of sliding guide rails (610) are fixedly provided on the fixed mounting base (600), and the two are respectively located on both sides of the sliding mounting groove (604). The extension direction of the sliding guide rails (610) is perpendicular to the axis of the old oil pipe. At the bottom of the sliding mounting base (603), corresponding to the positions of the two sliding guide rails (610), there are sliding blocks (611) that cooperate with the sliding guide rails (610). That is, there are two sliding blocks (611) at the bottom of the sliding mounting base (603). The two sliding blocks (611) are respectively engaged on the corresponding sliding guide rails (610) and are slidably connected to the sliding guide rails (610).

7. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 6, characterized in that, A first bellows cover (612) is provided between two sliding mounting seats (603). The two ends of the first bellows cover (612) are detachably connected to one side of the corresponding sliding mounting seat (603) by bolts. The bottom of the first bellows cover (612) is slidably engaged with the fixed mounting seat (600). A second bellows cover (613) is provided between the side of each sliding mounting seat (603) away from the first bellows cover (612) and the corresponding fixed mounting seat (600). The two ends of the second bellows cover (613) are detachably connected to one side of the corresponding sliding mounting seat (603) and the fixed mounting seat (600) by bolts. The bottom of the second bellows cover (613) is slidably engaged with the fixed mounting seat (600).

8. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 7, characterized in that, The driving component (602) includes a screw drive motor (614) and an RV reducer (615) fixed on the fixed mounting base (600). The output shaft of the screw drive motor (614) is fixedly connected to the input shaft of the RV reducer (615). The output shaft of the RV reducer (615) is fixedly connected to one end of the bidirectional reverse threaded rod (601) for driving the bidirectional reverse threaded rod (601) to rotate.

9. The laser cleaning and rust removal device for the outer wall of old oil pipes according to claim 8, characterized in that, The fixed mounting base (600) has several metal feet (616) on both sides of its bottom. One end of the metal feet (616) is fixedly connected to the fixed mounting base (600), and the other end is fixedly connected to the ground by bolts. Both the roller drive motor (609) and the screw drive motor (614) are servo motors.

10. A laser cleaning and rust removal method for the outer wall of old oil pipes, characterized in that, Using the laser cleaning and rust removal device for the outer wall of an old oil pipe according to any one of claims 1-9, specifically: The ground rail moving module (20) is activated, and the dust suction module (20), lifting module (40), horizontal moving module (30), and laser cleaning module (10) are moved to one end along the direction of the old oil pipe. Then, the laser cleaning module (10) and dust collection pipe (201) are moved to a designated position by the horizontal moving module (30) and lifting module (40), according to the old oil pipe... Adjust the diameter, position of a pair of roller support modules (60), and hoist the old oil pipe onto a pair of roller support modules (60). Start the laser cleaning module (10), which emits laser to clean the pipe. At the same time, start the dust collector (200) and start collecting dust through the dust collection pipe 201. Simultaneously, the laser cleaning module (10) and the dust collection module (20) are driven to move to the right at a uniform speed through the ground rail moving module (50) to complete the cleaning of the outer wall of the old oil pipe.

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