Internal spiral intelligent continuous pipe manufacturing device and manufacturing method thereof

Abstract

The invention discloses an internal spiral intelligent coiled tubing manufacturing device and a manufacturing method thereof.The internal spiral intelligent coiled tubing manufacturing device comprises a supporting assembly, the supporting assembly is used for supporting a coiled tubing forming assembly, a magnetic control welding assembly and an optical fiber guiding assembly, and the coiled tubing forming assembly is used for pressing coiled tubing base materials and enabling the end faces of the coiled tubing base materials to be attached to each other; according to the device, the function of pressing the coiled tubing base material and welding in real time after the end faces of the coiled tubing base material are attached to each other is achieved, the function of connecting the optical fiber unit with the inner side wall of the coiled tubing in a spiral mode is achieved, and the spiral angle can be adjusted according to needs; the function of timely curing the acrylic acid ultraviolet adhesive after the optical fiber unit is spirally attached to the inner side wall of the continuous pipe is achieved, sliding accumulation of the spiral optical fiber caused by high-speed fluid is avoided, the optical fiber or the cable in the optical fiber unit is protected, the signal transmission stability and the monitoring precision of the finished inner spiral intelligent continuous pipe are improved, and the production cost is reduced. And the device is suitable for wide popularization and use.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent coiled tubing manufacturing, and particularly relates to an inner spiral intelligent coiled tubing manufacturing device and a manufacturing method thereof. Background Art

[0002] In the current process of industrial development, the application scenarios of coiled tubing are becoming increasingly extensive. Especially in industries such as oil and gas exploration, pipeline transportation, etc., higher requirements are put forward for the performance and function integration of coiled tubing. As a key technology for the development of the industry, intelligent coiled tubing can obtain internal and external environmental data in real time, realize intelligent monitoring and management, and is of great significance for improving operation efficiency and ensuring safe production.

[0003] At present, most conventional coiled tubings are simple straight pipe structures. When realizing intelligent functions, usually after the coiled tubing is produced, functional components such as optical fibers and cables are placed into the tube; for example, in the field of oil and gas exploration, mechanical traction or fluid propulsion is generally used to introduce optical fibers into the coiled tubing to achieve downhole data monitoring functions. There are also some coiled tubings that expand functions by winding cables or sensors outside the tube, but this method is not only easily damaged by the external environment, but also increases the outer diameter of the coiled tubing and is difficult to apply in operation scenarios with limited space.

[0004] There are many drawbacks in the existing coiled tubing technology. On the one hand, when directly placing optical fibers or cables inside the coiled tubing, the fixing effect is poor, and it is extremely easy to displace when the coiled tubing is bent or impacted by fluid, which not only easily leads to unstable signal transmission, but also seriously affects the monitoring accuracy. At the same time, the flow of the medium inside the tube will wear the optical fibers and cables, seriously shortening the service life; on the other hand, the winding method outside the coiled tubing has poor protection, increases the outer diameter while also increasing the installation and maintenance costs; therefore, it is necessary to design an inner spiral intelligent coiled tubing manufacturing device and a manufacturing method thereof. Summary of the Invention

[0005] The main purpose of the present invention is to solve the problems existing in the current coiled tubing technology, such as unstable fixing, easy wear, signal transmission interference of optical fibers or cables, and the manufacturing process cannot meet the intelligent requirements; the present invention provides an inner spiral intelligent coiled tubing manufacturing device and a manufacturing method thereof, which realize the function of pressing the coiled tubing base material and welding in real time after the end faces of the coiled tubing base materials are mutually attached, and also realize the function of connecting the optical fiber unit to the inner side wall of the coiled tubing in a spiral manner, and the spiral angle can be adjusted as needed, and also realize the function of timely curing the acrylic ultraviolet glue after the optical fiber unit is spirally attached to the inner side wall of the coiled tubing, which not only avoids the sliding and accumulation of the spiral optical fiber caused by high-speed fluid, but also protects the optical fibers or cables inside the optical fiber unit, and improves the signal transmission stability and monitoring accuracy of the finished inner spiral intelligent coiled tubing.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: An internal spiral intelligent coiled tubing manufacturing device, comprising a support assembly for supporting a coiled tubing forming assembly, a magnetron welding assembly, and an optical fiber guiding assembly. The coiled tubing forming assembly is used to press and combine the coiled tubing base material and make the end faces of the coiled tubing base material fit together. The magnetron welding assembly is used to weld and close the end faces of the coiled tubing base material that have been fitted. The optical fiber guiding assembly is used to guide the optical fiber unit coated with stainless steel. One end of the optical fiber guiding assembly is provided with the fixed end of an optical fiber rotating assembly. The rotating end of the optical fiber rotating assembly is connected to an optical fiber spiral forming assembly and an ultraviolet irradiation assembly. The optical fiber rotating assembly is used to rotate the optical fiber spiral forming assembly and the ultraviolet irradiation assembly. The optical fiber spiral forming assembly is used to spirally fit the optical fiber unit transmitted through the optical fiber guiding assembly to the inner wall of the coiled tubing that has been welded well in cooperation with the optical fiber rotating assembly. The ultraviolet irradiation assembly is used to irradiate ultraviolet light on the optical fiber unit attached to the inner wall of the coiled tubing and cure the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing.

[0007] For the above-mentioned internal spiral intelligent coiled tubing manufacturing device, the support assembly includes a support frame, on the upper surface of which a side plate is provided, and on the upper surface of the side plate a support plate is connected.

[0008] For the above-mentioned internal spiral intelligent coiled tubing manufacturing device, the coiled tubing forming assembly includes a first servo motor and a second servo motor. Both the first servo motor and the second servo motor are detachably connected to the outer wall of the bottom surface of the support frame. One end of the output shaft of the first servo motor is connected to one end of a first rotating shaft, and the other end of the first rotating shaft is rotatably connected to the outer wall of the bottom surface of the support plate. A first forming pressing wheel is provided on the outer side wall of the first rotating shaft. One end of the output shaft of the second servo motor is connected to one end of a second rotating shaft, and the other end of the second rotating shaft is rotatably connected to the outer wall of the bottom surface of the support plate. A second forming pressing wheel is provided on the outer side wall of the second rotating shaft.

[0009] For the above-mentioned internal spiral intelligent coiled tubing manufacturing device, the magnetron welding assembly includes an electric cylinder, which is detachably connected to the upper surface of the support plate. One end of a pneumatic telescopic rod is slidably connected to the inner side wall of the electric cylinder, and the other end of the pneumatic telescopic rod is detachably connected to a connecting plate. A limiting rod is provided on the upper surface of the connecting plate, and a limiting hole is provided on the upper surface of the support plate. The outer side wall of the limiting rod is slidably connected to the inner side wall of the limiting hole. A magnetron current welder is detachably connected to the inner side wall of the connecting plate, and a welding rod is provided at the lower end of the magnetron current welder.

[0010] The aforementioned inner spiral intelligent coiled tubing manufacturing device, wherein the optical fiber guiding assembly includes a support column detachably connected to the outer wall of the bottom surface of the support plate. An optical fiber guiding rod is provided on the outer side wall of the support column. One end of the optical fiber guiding rod is connected to an optical fiber guiding tube, and a sliding groove is formed at the other end of the optical fiber guiding rod. A slider is slidably connected to the inner side wall of the sliding groove. The optical fiber guiding tube is used to guide the optical fiber unit into the optical fiber guiding rod, and the optical fiber guiding rod is used to guide the optical fiber unit and output it after passing through the slider. A cooling air inlet pipe and a cooling air exhaust pipe are inserted into the outer side wall of the optical fiber guiding rod.

[0011] The aforementioned inner spiral intelligent coiled tubing manufacturing device, wherein the optical fiber rotating assembly includes a third servo motor provided at one end of the optical fiber guiding rod where the sliding groove is formed. The output shaft of the third servo motor is connected to one end of a third rotating shaft, and the other end of the third rotating shaft is detachably connected to a rotating plate.

[0012] The aforementioned inner spiral intelligent coiled tubing manufacturing device, wherein the optical fiber spiral forming assembly includes an electric hydraulic cylinder. One end of a hydraulic telescopic rod is slidably connected to the inner side wall of the electric hydraulic cylinder, and an optical fiber alignment block is provided at the other end of the hydraulic telescopic rod. A through hole is formed in the outer side wall of the optical fiber alignment block, and the inner side wall of the through hole is slidably connected to the outer side wall of the optical fiber unit output from the optical fiber guiding rod.

[0013] The aforementioned inner spiral intelligent coiled tubing manufacturing device, wherein the ultraviolet irradiation assembly includes a first ultraviolet lamp and a second ultraviolet lamp. The first ultraviolet lamp is provided on the upper surface of the rotating plate, and the second ultraviolet lamp is installed on the outer wall of the bottom surface of the rotating plate. Both the first ultraviolet lamp and the second ultraviolet lamp are located on the side of the electric hydraulic cylinder away from the third rotating shaft.

[0014] The number of the aforementioned coiled tubing forming assemblies is two, and the two coiled tubing forming assemblies are symmetrically distributed on the upper surface of the support frame.

[0015] Preferably, it includes the following steps: Step 1, coiled tubing forming. The first servo motor operates to drive the first rotating shaft to rotate, thereby driving the first forming roller to rotate. At the same time, the second servo motor operates to drive the second rotating shaft to rotate, thereby driving the second forming roller to rotate. In this way, under the action of both the first forming roller and the second forming roller rotating towards the direction of the coiled tubing base material, the coiled tubing base material can be formed into a coiled tubing. Step 2, coiled tubing welding. The electric cylinder operates to drive the pneumatic telescopic rod to expand and contract, so as to drive the connecting plate to move linearly, and then drive the welding rod to approach the coiled tubing joint. Then, the magnetically controlled current welding machine operates to drive the welding rod to weld the coiled tubing joint. At the same time, the stability of the welding rod during welding is ensured by the sliding of the limiting rod along the limiting hole. Step 3, optical fiber guiding. The optical fiber guiding tube can input the optical fiber unit coated with stainless steel into the optical fiber guiding rod. Then, the optical fiber unit can be output through the optical fiber guiding rod via the slider. At the same time, the cooling gas can be output into the optical fiber guiding rod through the cooling air inlet pipe, and the cooling gas is output from the optical fiber guiding rod after heat exchange through the cooling exhaust pipe. Step 4, optical fiber spiral fitting. The electric hydraulic cylinder operates to drive the hydraulic telescopic rod to expand and contract, so as to drive the optical fiber centering block to approach the inner wall of the coiled tubing. Then, after the optical fiber unit passes through the through hole, it can be attached to the inner wall of the coiled tubing. At the same time, the third servo motor operates to drive the third rotating shaft to rotate, which can drive the rotating plate to rotate, and then drive the optical fiber centering block to rotate. Under the action of the rotation of the optical fiber centering block, the slider can be driven to slide along the chute, so that the optical fiber unit can move accordingly. In this way, the optical fiber unit can be spirally attached to the inner wall of the coiled tubing. Step 5, optical fiber fixing. The first ultraviolet lamp and the second ultraviolet lamp operate to irradiate ultraviolet light on the optical fiber unit attached to the inner wall of the coiled tubing, and the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit is cured, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. First, the first servo motor operates to drive the first rotating shaft to rotate, so as to drive the first forming roller to rotate. At the same time, the second servo motor operates to drive the second rotating shaft to rotate, so as to drive the second forming roller to rotate. In this way, under the action of the rotation of both the first forming roller and the second forming roller towards the coiled tubing base material, the coiled tubing base material can be formed into a coiled tubing. Then, the electric cylinder operates to drive the pneumatic telescopic rod to expand and contract, so as to drive the connecting plate to move linearly, and then drive the welding rod to approach the coiled tubing joint. Then, the magnetically controlled current welding machine operates to drive the welding rod to weld the coiled tubing joint. At the same time, the stability of the welding rod during welding is ensured by the sliding of the limiting rod along the limiting hole. The device effectively realizes the function of automatically pressing the coiled tubing base material and making the end faces of the coiled tubing base material fit together. And after the end faces of the coiled tubing base material fit together, automatic welding can be carried out in real time. Under the action of the electric cylinder, the welding equipment can be applied to automatically weld coiled tubings of various different sizes. At the same time, by setting two groups of coiled tubing forming components, the coiled tubing base material can be stably formed into a coiled tubing. The device has a simple structure and good coiled tubing manufacturing effect.

[0017] 2. In the present invention, the optical fiber guiding tube can input the optical fiber unit covered with stainless steel into the interior of the optical fiber guiding rod, and then the optical fiber guiding rod can output the optical fiber unit through the slider. At the same time, the cooling gas can be output into the interior of the optical fiber guiding rod through the cooling intake pipe, and after heat exchange, the cooling gas is output from the optical fiber guiding rod through the cooling exhaust pipe. Then, the electric hydraulic cylinder operates to drive the hydraulic telescopic rod to slide telescopically, thereby driving the optical fiber alignment block to lean against the inner wall of the coiled tubing. Furthermore, after the optical fiber unit passes through the through hole, it can be attached to the inner wall of the coiled tubing. At the same time, the third servo motor operates to drive the third rotating shaft to rotate, which can drive the rotating plate to rotate, thereby driving the optical fiber alignment block to rotate. Under the action of the rotation of the optical fiber alignment block, the slider can be driven to slide along the chute, so that the optical fiber unit can move accordingly. In this way, the optical fiber unit can be attached to the inner wall of the coiled tubing in a spiral shape. Subsequently, through the operation of the first ultraviolet lamp and the second ultraviolet lamp, ultraviolet rays can be irradiated on the optical fiber unit attached to the inner wall of the coiled tubing, and the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit can be cured, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing. Effectively, the device has the function of automatically fixing the optical fiber unit to the inner wall of the coiled tubing in a spiral manner. Moreover, by setting the optical fiber rotation assembly, the spiral angle of the optical fiber unit can be adjusted as required. And by setting the electric hydraulic cylinder, the device can be applicable to the function of spirally fixing and connecting the optical fiber unit to the inner walls of coiled tubings of different sizes. At the same time, by setting the ultraviolet lamp, the acrylic ultraviolet glue can be cured after the optical fiber unit is spirally attached to the inner wall of the coiled tubing, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing. After curing with acrylic ultraviolet glue, the inner wall of the inner spiral intelligent coiled tubing can form a corrugated pipe state. This corrugated pipe state can effectively buffer the impact of the medium inside the coiled tubing during use, not only avoiding the sliding and accumulation of the spiraled optical fiber unit by high-speed fluid, but also protecting the optical fiber or cable inside the optical fiber unit, improving the signal transmission stability and monitoring accuracy of the finished inner spiral intelligent coiled tubing. The manufacturing method of the present invention makes the structure of the coiled tubing more compact, and realizes function integration without increasing the outer diameter, being applicable to more complex operation scenarios. It not only improves the overall strength and stability of the finished inner spiral intelligent coiled tubing, but also reduces the production cost, significantly enhancing the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the optical fiber attachment assembly of the present invention; Figure 3 is the structural schematic diagram of the support assembly and the coiled tubing forming assembly of the present invention; Figure 4 is the structural schematic diagram of the magnetron welding assembly of the present invention; Figure 5 Schematic structural diagram of the optical fiber guiding component of the present invention; Figure 6 Schematic structural diagram of the optical fiber spiral forming component of the present invention.

[0019] In the figure: 1. Support component; 101. Support frame; 102. Side plate; 103. Support plate; 2. Coiled tubing forming component; 201. First servo motor; 202. First rotating shaft; 203. First forming pressing wheel; 204. Second servo motor; 205. Second rotating shaft; 206. Second forming pressing wheel; 3. Magnetron welding component; 301. Electric cylinder; 302. Pneumatic telescopic rod; 303. Connecting plate; 304. Limiting rod; 305. Limiting hole; 306. Magnetron current welding machine; 307. Welding rod; 4. Optical fiber guiding component; 401. Support column; 402. Optical fiber guiding rod; 403. Optical fiber guiding tube; 404. Cooling air inlet pipe; 405. Cooling exhaust pipe; 406. Chute; 407. Slide block; 5. Optical fiber rotating component; 501. Third servo motor; 502. Third rotating shaft; 503. Rotating plate; 6. Optical fiber spiral forming component; 601. Electric hydraulic cylinder; 602. Hydraulic telescopic rod; 603. Optical fiber centering block; 604. Through hole; 7. Ultraviolet irradiation component; 701. First ultraviolet lamp; 702. Second ultraviolet lamp. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] Such as Figures 1-6As shown in the figure, an internal spiral intelligent coiled tubing manufacturing device includes a support assembly 1, which is used to support a coiled tubing forming assembly 2, a magnetron welding assembly 3, and an optical fiber guiding assembly 4. The coiled tubing forming assembly 2 is used to press the coiled tubing base material and make the end faces of the coiled tubing base material fit together. The magnetron welding assembly 3 is used to weld and close the end faces of the coiled tubing base material that have been fitted. The optical fiber guiding assembly 4 is used to guide the optical fiber unit coated with stainless steel. One end of the optical fiber guiding assembly 4 is provided with a fixed end of an optical fiber rotating assembly 5. The rotating end of the optical fiber rotating assembly 5 is connected to an optical fiber spiral forming assembly 6 and an ultraviolet irradiation assembly 7. The optical fiber rotating assembly 5 is used to rotate the optical fiber spiral forming assembly 6 and the ultraviolet irradiation assembly 7. The optical fiber spiral forming assembly 6 is used to helically attach the optical fiber unit transmitted through the optical fiber guiding assembly 4 to the inner wall of the welded coiled tubing in cooperation with the optical fiber rotating assembly 5. The ultraviolet irradiation assembly 7 is used to irradiate ultraviolet light on the optical fiber unit attached to the inner wall of the coiled tubing and cure the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing. The present invention realizes the function of pressing the coiled tubing base material and welding it in real time after the end faces of the coiled tubing base material fit together. It also realizes the function of connecting the optical fiber unit to the inner side wall of the coiled tubing in a spiral manner, and the spiral angle can be adjusted as needed. It also realizes the function of curing the acrylic ultraviolet glue in time after the optical fiber unit is helically attached to the inner side wall of the coiled tubing. This not only avoids the sliding and accumulation of the spiral optical fiber caused by high-speed fluid, but also protects the optical fiber or cable inside the optical fiber unit, and improves the signal transmission stability and monitoring accuracy of the finished internal spiral intelligent coiled tubing.

[0022] Specifically, the support assembly 1 includes a support frame 101. A side plate 102 is arranged on the upper surface of the support frame 101, and a support plate 103 is connected to the upper surface of the side plate 102. By providing the support assembly 1, the support stability of the device is relatively high and the transportation is convenient.

[0023] Specifically, the coiled tubing forming assembly 2 includes a first servo motor 201 and a second servo motor 204. The first servo motor 201 and the second servo motor 204 are both detachably connected to the outer wall of the bottom surface of the support frame 101. One end of a first rotating shaft 202 is connected to the output shaft of the first servo motor 201, and the other end of the first rotating shaft 202 is rotatably connected to the outer wall of the bottom surface of the support plate 103. A first forming pressing wheel 203 is arranged on the outer side wall of the first rotating shaft 202. One end of a second rotating shaft 205 is connected to the output shaft of the second servo motor 204, and the other end of the second rotating shaft 205 is rotatably connected to the outer wall of the bottom surface of the support plate 103. A second forming pressing wheel 206 is arranged on the outer side wall of the second rotating shaft 205. By running the first servo motor 201 to drive the first rotating shaft 202 to rotate, the first forming pressing wheel 203 can be driven to rotate. At the same time, by running the second servo motor 204 to drive the second rotating shaft 205 to rotate, the second forming pressing wheel 206 can be driven to rotate. In this way, under the action of the first forming pressing wheel 203 and the second forming pressing wheel 206 both rotating in the direction approaching the coiled tubing base material, the coiled tubing base material can be formed into a coiled tubing.

[0024] Specifically, the magnetron welding assembly 3 includes an electric cylinder 301. The electric cylinder 301 is detachably connected to the upper surface of the support plate 103. One end of a pneumatic telescopic rod 302 is slidably connected to the inner side wall of the electric cylinder 301, and the other end of the pneumatic telescopic rod 302 is detachably connected to a connecting plate 303. A limiting rod 304 is arranged on the upper surface of the connecting plate 303. A limiting hole 305 is formed on the upper surface of the support plate 103. The outer side wall of the limiting rod 304 is slidably connected to the inner side wall of the limiting hole 305. A magnetron current welding machine 306 is detachably connected to the inner side wall of the connecting plate 303, and a welding rod 307 is arranged at the lower end of the magnetron current welding machine 306. By running the electric cylinder 301 to drive the pneumatic telescopic rod 302 to slide telescopically, the connecting plate 303 can be driven to move linearly, and further the welding rod 307 can be driven to approach the coiled tubing connection seam. Then, by running the magnetron current welding machine 306, the welding rod 307 can be driven to weld the coiled tubing connection seam. At the same time, the stability of the welding of the welding rod 307 is ensured under the action of the limiting rod 304 sliding along the limiting hole 305.

[0025] Specifically, the optical fiber guiding assembly 4 includes a support column 401 detachably connected to the outer wall of the bottom surface of the support plate 103. An optical fiber guiding rod 402 is provided on the outer side wall of the support column 401. One end of the optical fiber guiding rod 402 is connected to an optical fiber guiding tube 403, and a sliding groove 406 is formed at the other end of the optical fiber guiding rod 402. A slider 407 is slidably connected to the inner side wall of the sliding groove 406. The optical fiber guiding tube 403 is used to guide the optical fiber unit into the optical fiber guiding rod 402, and the optical fiber guiding rod 402 is used to guide the optical fiber unit and output it after passing through the slider 407. A cooling air inlet pipe 404 and a cooling air outlet pipe 405 are inserted into the outer side wall of the optical fiber guiding rod 402. Through the optical fiber guiding tube 403, the optical fiber unit covered with stainless steel can be input into the optical fiber guiding rod 402. Then, through the optical fiber guiding rod 402, the optical fiber unit can be output through the slider 407. At the same time, cooling gas can be output into the optical fiber guiding rod 402 through the cooling air inlet pipe 404, and the cooling gas is output from the optical fiber guiding rod 402 through the cooling air outlet pipe 405 after heat exchange.

[0026] Specifically, the optical fiber rotating assembly 5 includes a third servo motor 501 provided at one end of the optical fiber guiding rod 402 where the sliding groove 406 is formed. One end of an output shaft of the third servo motor 501 is connected to one end of a third rotating shaft 502, and the other end of the third rotating shaft 502 is detachably connected to a rotating plate 503. By running the third servo motor 501 to drive the third rotating shaft 502 to rotate, the rotating plate 503 can be driven to rotate, thereby driving the optical fiber aligning block 603 to rotate. Under the action of the rotation of the optical fiber aligning block 603, the slider 407 can be driven to slide along the sliding groove 406, so that the optical fiber unit can move accordingly, and thus the optical fiber unit can be spirally attached to the inner side wall of the coiled tubing.

[0027] Specifically, the optical fiber spiral forming assembly 6 includes an electric hydraulic cylinder 601. One end of a hydraulic telescopic rod 602 is slidably connected to the inner side wall of the electric hydraulic cylinder 601, and an optical fiber aligning block 603 is provided at the other end of the hydraulic telescopic rod 602. A through hole 604 is formed in the outer side wall of the optical fiber aligning block 603, and the inner side wall of the through hole 604 is slidably connected to the outer side wall of the optical fiber unit output from the optical fiber guiding rod 402. By running the electric hydraulic cylinder 601 to drive the hydraulic telescopic rod 602 to telescopically slide, the optical fiber aligning block 603 can be driven to approach the inner side wall of the coiled tubing, so that after the optical fiber unit passes through the through hole 604, it can be attached to the inner side wall of the coiled tubing.

[0028] Specifically, the ultraviolet irradiation assembly 7 includes a first ultraviolet lamp 701 and a second ultraviolet lamp 702. The first ultraviolet lamp 701 is disposed on the upper surface of the rotating plate 503, and the second ultraviolet lamp 702 is installed on the outer wall of the bottom surface of the rotating plate 503. Both the first ultraviolet lamp 701 and the second ultraviolet lamp 702 are located on the side of the electric hydraulic cylinder 601 away from the third rotating shaft 502. By operating the first ultraviolet lamp 701 and the second ultraviolet lamp 702, ultraviolet rays can be irradiated on the optical fiber unit attached to the inner wall of the continuous pipe, and the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit can be cured, so that the optical fiber unit can be fixed to the inner wall of the continuous pipe.

[0029] Specifically, the number of the continuous pipe forming assemblies 2 is two, and the two continuous pipe forming assemblies 2 are symmetrically distributed on the upper surface of the support frame 101. By providing two groups of continuous pipe forming assemblies, the continuous pipe base material can be stably formed into a continuous pipe.

[0030] Specifically, it includes the following steps: Step 1, continuous pipe forming: The first servo motor 201 operates to drive the first rotating shaft 202 to rotate, thereby driving the first forming roller 203 to rotate. At the same time, the second servo motor 204 operates to drive the second rotating shaft 205 to rotate, thereby driving the second forming roller 206 to rotate. In this way, under the action of the first forming roller 203 and the second forming roller 206 rotating towards the continuous pipe base material, the continuous pipe base material can be formed into a continuous pipe, that is, the present invention has the function of automatically pressing the continuous pipe base material and fitting the end faces of the continuous pipe base material to each other. Step 2, continuous pipe welding: The electric cylinder 301 operates to drive the pneumatic telescopic rod 302 to slide telescopically, thereby driving the connecting plate 303 to perform linear movement, and further driving the welding rod 307 towards the continuous pipe joint. Then, the magnetic control current welding machine 306 operates to drive the welding rod 307 to weld the continuous pipe joint. At the same time, the stability of the welding rod 307 is ensured by the sliding of the limiting rod 304 along the limiting hole 305, that is, the present invention has the function of automatically welding in real time after the end faces of the continuous pipe base material are mutually fitted. Step 3, optical fiber guiding: The optical fiber guiding tube 403 can input the optical fiber unit coated with stainless steel into the optical fiber guiding rod 402, and then the optical fiber unit can be output through the optical fiber guiding rod 402 by the slider 407. At the same time, the cooling gas can be output into the optical fiber guiding rod 402 through the cooling air inlet pipe 404, and the cooling gas is output from the optical fiber guiding rod 402 through the cooling exhaust pipe 405 after heat exchange, that is, the present invention has the function of stably guiding the optical fiber unit coated with stainless steel. Step 4: Fiber optic helix fitting. The operation of the electric hydraulic cylinder 601 drives the telescopic sliding of the hydraulic telescopic rod 602, which can drive the fiber optic alignment block 603 to lean against the inner wall of the coiled tubing. As a result, after the fiber optic unit penetrates through the through hole 604, it can be attached to the inner wall of the coiled tubing. At the same time, the operation of the third servo motor 501 drives the rotation of the third rotating shaft 502, which can drive the rotation of the rotating plate 503, thereby driving the rotation of the fiber optic alignment block 603. Under the action of the rotation of the fiber optic alignment block 603, the slider 407 can slide along the chute 406, so that the fiber optic unit can move accordingly. In this way, the fiber optic unit can be attached to the inner wall of the coiled tubing in a spiral shape, enabling the present invention to have the function of automatically fixedly connecting the fiber optic unit to the inner wall of the coiled tubing in a spiral manner. Step 5: Fiber optic fixation. The operation of the first ultraviolet lamp 701 and the second ultraviolet lamp 702 irradiates ultraviolet light on the fiber optic unit attached to the inner wall of the coiled tubing, causing the acrylic ultraviolet glue coated on the outer surface of the fiber optic unit to cure, thereby enabling fixation between the fiber optic unit and the inner wall of the coiled tubing. This enables the present invention to have the function of promptly curing the acrylic ultraviolet glue after the fiber optic unit is spirally attached to the inner wall of the coiled tubing.

[0031] All the electronic components used in the present invention are common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0032] The above has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal spiral intelligent coiled tubing manufacturing device, comprising a support assembly (1), characterized in that: The support assembly (1) is used to support the coiled tubing forming assembly (2), the magnetron welding assembly (3), and the optical fiber guiding assembly (4). The coiled tubing forming assembly (2) is used to press and combine the coiled tubing base material so that the end faces of the coiled tubing base material are mutually attached. The magnetron welding assembly (3) is used to weld and close the end faces of the attached coiled tubing base material. The optical fiber guiding assembly (4) is used to guide the optical fiber unit coated with stainless steel. One end of the optical fiber guiding assembly (4) is provided with the fixed end of the optical fiber rotating assembly (5). The rotating end of the optical fiber rotating assembly (5) is connected with the optical fiber helical forming assembly (6) and the ultraviolet irradiation assembly (7). The optical fiber rotating assembly (5) is used to rotate the optical fiber helical forming assembly (6) and the ultraviolet irradiation assembly (7). The optical fiber helical forming assembly (6) is used to helically attach the optical fiber unit transmitted through the optical fiber guiding assembly (4) to the inner wall of the welded coiled tubing in cooperation with the optical fiber rotating assembly (5). The ultraviolet irradiation assembly (7) is used to irradiate the optical fiber unit attached to the inner wall of the coiled tubing with ultraviolet rays and cure the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing.

2. The manufacturing device for an internal spiral intelligent coiled tubing according to claim 1, characterized in that: The support assembly (1) includes a support frame (101). A side plate (102) is arranged on the upper surface of the support frame (101). A support plate (103) is connected to the upper surface of the side plate (102).

3. The manufacturing device of an internal spiral intelligent coiled tubing according to claim 2, characterized in that: The coiled tubing forming assembly (2) includes a first servo motor (201) and a second servo motor (204). The first servo motor (201) and the second servo motor (204) are both detachably connected to the outer wall of the bottom surface of the support frame (101). One end of a first rotating shaft (202) is connected to the output shaft of the first servo motor (201), and the other end of the first rotating shaft (202) is rotatably connected to the outer wall of the bottom surface of the support plate (103). A first forming pressing wheel (203) is arranged on the outer side wall of the first rotating shaft (202). One end of a second rotating shaft (205) is connected to the output shaft of the second servo motor (204), and the other end of the second rotating shaft (205) is rotatably connected to the outer wall of the bottom surface of the support plate (103). A second forming pressing wheel (206) is arranged on the outer side wall of the second rotating shaft (205).

4. The manufacturing device of an internal spiral intelligent coiled tubing according to claim 3, characterized in that: The magnetron welding assembly (3) includes an electric cylinder (301). The electric cylinder (301) is detachably connected to the upper surface of the support plate (103). One end of a pneumatic telescopic rod (302) is slidably connected to the inner side wall of the electric cylinder (301), and the other end of the pneumatic telescopic rod (302) is detachably connected to a connecting plate (303). A limiting rod (304) is arranged on the upper surface of the connecting plate (303). A limiting hole (305) is formed on the upper surface of the support plate (103). The outer side wall of the limiting rod (304) is slidably connected to the inner side wall of the limiting hole (305). A magnetron current welding machine (306) is detachably connected to the inner side wall of the connecting plate (303), and a welding rod (307) is arranged at the lower end of the magnetron current welding machine (306).

5. The manufacturing device for an internal spiral intelligent coiled tubing according to claim 4, wherein: The optical fiber guiding assembly (4) includes a support column (401) detachably connected to the outer wall of the bottom surface of the support plate (103). An optical fiber guiding rod (402) is provided on the outer wall of the support column (401). One end of the optical fiber guiding rod (402) is connected to an optical fiber guiding tube (403), and a chute (406) is formed at the other end of the optical fiber guiding rod (402). A slider (407) is slidably connected to the inner wall of the chute (406). The optical fiber guiding tube (403) is used to guide the optical fiber unit into the optical fiber guiding rod (402), and the optical fiber guiding rod (402) is used to guide the optical fiber unit and output it after passing through the slider (407). A cooling air inlet pipe (404) and a cooling air exhaust pipe (405) are inserted into the outer wall of the optical fiber guiding rod (402).

6. The manufacturing device of an internal spiral intelligent coiled tubing according to claim 5, wherein: The optical fiber rotating assembly (5) includes a third servo motor (501) disposed at one end of the optical fiber guiding rod (402) where the chute (406) is formed. One end of an output shaft of the third servo motor (501) is connected to one end of a third rotating shaft (502), and the other end of the third rotating shaft (502) is detachably connected to a rotating plate (503).

7. The manufacturing device of an internal spiral intelligent coiled tubing according to claim 6, wherein: The optical fiber spiral forming assembly (6) includes an electric hydraulic cylinder (601). One end of a hydraulic telescopic rod (602) is slidably connected to the inner wall of the electric hydraulic cylinder (601), and an optical fiber aligning block (603) is provided at the other end of the hydraulic telescopic rod (602). A through hole (604) is formed in the outer wall of the optical fiber aligning block (603), and the inner wall of the through hole (604) is slidably connected to the outer wall of the optical fiber unit output from the optical fiber guiding rod (402).

8. The manufacturing device of an internal spiral intelligent coiled tubing according to claim 7, wherein: The ultraviolet irradiation assembly (7) includes a first ultraviolet lamp (701) and a second ultraviolet lamp (702). The first ultraviolet lamp (701) is disposed on the upper surface of the rotating plate (503), and the second ultraviolet lamp (702) is installed on the outer wall of the bottom surface of the rotating plate (503). The first ultraviolet lamp (701) and the second ultraviolet lamp (702) are both located on the side of the electric hydraulic cylinder (601) away from the third rotating shaft (502).

9. The manufacturing device for an internal spiral intelligent coiled tubing according to claim 8, wherein: The number of the continuous tube forming assemblies (2) is two, and the two continuous tube forming assemblies (2) are symmetrically distributed on the upper surface of the support frame (101).

10. A manufacturing method of an internal spiral intelligent coiled tubing manufacturing device according to any one of claims 1-9, characterized in that, It includes the following steps: Step 1, continuous tube forming. The first servo motor (201) operates to drive the first rotating shaft (202) to rotate, thereby driving the first forming roller (203) to rotate. At the same time, the second servo motor (204) operates to drive the second rotating shaft (205) to rotate, thereby driving the second forming roller (206) to rotate. In this way, under the action of the first forming roller (203) and the second forming roller (206) both rotating in the direction of approaching the continuous tube base material, the continuous tube base material can be formed into a continuous tube. Step 2, coiled tubing welding. The pneumatic telescopic rod (302) is driven to expand and contract by the operation of the electric cylinder (301), so as to drive the connecting plate (303) to move linearly, and then drive the welding rod (307) to approach the coiled tubing connection seam. Then, the operation of the magnetron current welding machine (306) can drive the welding rod (307) to weld the coiled tubing connection seam. At the same time, the stability of the welding rod (307) is ensured by the sliding of the limiting rod (304) along the limiting hole (305). Step 3, optical fiber guiding. The optical fiber guiding tube (403) can input the optical fiber unit coated with stainless steel into the optical fiber guiding rod (402). Then, the optical fiber unit can be output through the optical fiber guiding rod (402) via the slider (407). At the same time, the cooling gas can be output into the optical fiber guiding rod (402) through the cooling air inlet pipe (404), and the cooling gas is output from the optical fiber guiding rod (402) through the cooling exhaust pipe (405) after heat exchange. Step 4, optical fiber spiral fitting. The operation of the electric hydraulic cylinder (601) drives the hydraulic telescopic rod (602) to expand and contract, so as to drive the optical fiber alignment block (603) to approach the inner wall of the coiled tubing. Then, after the optical fiber unit penetrates through the through hole (604), it can be attached to the inner wall of the coiled tubing. At the same time, the operation of the third servo motor (501) drives the third rotating shaft (502) to rotate, which can drive the rotating plate (503) to rotate, and then drive the optical fiber alignment block (603) to rotate. Under the action of the rotation of the optical fiber alignment block (603), the slider (407) can be driven to slide along the chute (406), so that the optical fiber unit can move accordingly. In this way, the optical fiber unit can be spirally attached to the inner wall of the coiled tubing. Step 5, optical fiber fixing. The operation of the first ultraviolet lamp (701) and the second ultraviolet lamp (702) can irradiate the ultraviolet rays on the optical fiber unit attached to the inner wall of the coiled tubing and cure the acrylic ultraviolet glue coated on the outer surface of the optical fiber unit, so that the optical fiber unit can be fixed to the inner wall of the coiled tubing.

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