A reinforced plastic composite continuous pipe coiling performance testing machine and testing method

Abstract

The present invention discloses a testing machine and testing method for detecting the coiling performance of reinforced plastic composite continuous pipe, comprising a sliding car, a track, a sample joint guide rail, and a traction system; the upper half of the sliding car is a first coiling device, and the lower half is a second coiling device, and the first coiling device and the second coiling device are both provided with a plurality of roller track frames; there are two sample joint guide rails, which are respectively vertically arranged above the brackets on both sides of the sliding car, and the reinforced plastic composite continuous pipe sample is slidably mounted on the sample joint guide rails. By sliding the sliding car, the reinforced plastic composite continuous pipe sample slides on the sample joint guide rails, and the sample is coiled on the first coiling device or the second coiling device. The testing machine and testing method provided by the present invention can simulate on-site working conditions, are easy to operate, have high testing efficiency, can be composed of any size to simulate different circular coil rack reels, can replace a large number of existing circular coil racks, save testing costs and laboratory space, and easily realize the evaluation of the coiling performance of reinforced plastic composite continuous pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of inspection and testing of reinforced plastic composite continuous pipes, and in particular relates to a testing machine and a testing method for detecting the coiling performance of reinforced plastic composite continuous pipes. Background Art

[0002] Non-metallic pipes, with their excellent corrosion resistance, have become a key solution for corrosion prevention in oil and gas field gathering and transportation pipelines. These pipes, widely used in oil and gas fields, primarily include fiberglass reinforced plastic (FRP) pipes, flexible composite pipes, steel-reinforced composite pipes, plastic alloy composite pipes, and other types of non-metallic composite pipes. Reinforced plastic composite continuous pipe is a widely used flexible composite pipe, offering excellent flexibility and easy installation. Coilable reinforced plastic composite continuous pipe offers even greater flexibility and can be wound onto a coiled pipe rack for storage and transportation. This allows for individual pipes to be hundreds of meters long, significantly reducing the complexity and cost of transportation, installation, and construction.

[0003] The oil and gas industry standard SY / T 6794-2018 states that when coiled reinforced plastic composite coiled tubing is stored, the deformation energy stored within the tubing can pose potential hazards. These hazards include damage to the inner lining, reinforcement layer, and outer protective layer, resulting in a decrease in the tubing's pressure-bearing capacity. Therefore, regulations are required for the size of the reels used in coiled reinforced plastic composite coiled tubing storage. Furthermore, the oil and gas industry standard SY / T 6662.2-2012 specifies the reel dimensions for coiled reinforced plastic composite coiled tubing of different diameters. If the coiling depth of coiled reinforced plastic composite coiled tubing exceeds the minimum coiling diameter during transportation or installation, various performance characteristics of the tubing can be affected, thereby compromising the safety and reliability of the entire pipeline being laid and installed. Therefore, testing the coiling performance of coiled reinforced plastic composite coiled tubing is essential.

[0004] Currently, there is a lack of test equipment to evaluate the coiling performance of coilable reinforced plastic composite continuous tubing. Instead, coiling is performed using fixed-size circular tube racks, followed by sampling and performance testing. Testing the coiling performance of coilable reinforced plastic composite continuous tubing with varying flexibility requires a series of circular tube racks of varying sizes to achieve different coiling configurations. Consequently, testing laboratories must be equipped with a large number of test devices to conduct testing, as well as a large number of coilable reinforced plastic composite continuous tubing samples. This results in extremely high testing costs, a complex process, and low efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that there is no dedicated testing equipment and testing method for detecting the coiling performance of reinforced plastic composite continuous tubes, and to provide a testing machine and testing method for detecting the coiling performance of reinforced plastic composite continuous tubes.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A reinforced plastic composite continuous pipe coiling performance detection tester includes a sliding car and a sample joint guide rail. The sliding car includes a first coiling device at the front, a second coiling device at the rear and brackets on both sides. The first coiling device and the second coiling device are both semicircular and symmetrically arranged. Slide grooves are provided at the bottom of the two brackets, and rails are installed below. A traction system is installed on the sliding car, and the traction system provides power for the sliding car to make it reciprocate on the track; there are two sample joint guide rails, and the setting direction is perpendicular to the movement direction of the sliding car. Grooves are provided on the upper surfaces of the sample joint guide rails, and movable sliders are installed on the grooves. The sample is slidably connected to the two sample joint guide rails through the two movable sliders, and the sample is coiled on the first coiling device or the second coiling device by the movement of the sliding car on the track.

[0008] A further improvement of the present invention is:

[0009] The first winding device and the second winding device are both provided with a plurality of roller track frames, each of which is provided with a sliding slot, and each sliding slot is provided with a roller. By adjusting the position of the roller on the roller track frame, the first winding device or the second winding device of different diameters can be formed.

[0010] The first winding device and the second winding device are both provided with several roller track frames, each roller track frame is provided with a sliding slot, and a roller group is installed on the sliding slot located in the middle, and the roller group consists of two parallel rollers, and rollers are installed on the other sliding slots. By adjusting the positions of the rollers and the roller group on the roller track frame, first winding devices or second winding devices with different diameters can be formed.

[0011] The number of roller track frames on the first winding device and the second winding device is at least n, where n is greater than or equal to 3 and is an odd number.

[0012] The outer circumference of the roller is concave.

[0013] Joints are prefabricated at both ends of the specimen, and fixing rings are installed on the joints. The specimen and the specimen joint guide rail are slidably connected by nesting the fixing rings on the moving slider.

[0014] The traction system includes a screw and a motor that drives the screw. The motor drives the screw to push and pull the sliding vehicle.

[0015] The traction system uses a hydraulic system to push and pull the sliding car.

[0016] Limit sensors are installed at both ends of the track.

[0017] A method for testing the coiling performance of reinforced plastic composite continuous tubes using a testing machine comprises the following steps:

[0018] Step 1: Adjust the positions of all rollers in the first winding device so that the distance L1 from all rollers to the center of the first winding device is equal, and fix the rollers;

[0019] Step 2: Adjust the positions of all rollers in the second winding device so that the distance L2 from all rollers to the center of the second winding device is equal and L2 = L1, and then fix the rollers;

[0020] Step 3: Put the fixing ring onto the movable slider;

[0021] Step 4: Turn on the traction system, and the sliding carriage slides along the track until the sample is in contact with all rollers in the first winding device and then stops sliding;

[0022] Step 5: Keep the sample in the coiled state of step 4 for at least 4 hours, start the traction system again, and slide the sliding carriage along the track until the sample is in contact with all rollers of the second coiling device and then stops sliding;

[0023] Step 6: Keep the sample in the coiled state of step 5 for more than 4 hours, remove the sample, and use a hydraulic pressure testing machine to pressurize the sample to perform an ultimate pressure test;

[0024] In step 7, the ultimate failure pressure of the specimen is compared with the standard requirement. If the ultimate failure pressure of the specimen is equal to the standard requirement, the dimension formed by the rollers on the first or second coiling device is the minimum coiling dimension of the specimen, which is used to characterize the coiling performance of the reinforced plastic composite continuous tubing. Otherwise, the distance from the rollers to the center of the first or second coiling device is adjusted, the specimen is replaced, and steps 1-6 are repeated until the minimum coiling dimension is found.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention discloses a testing machine for testing the coiling performance of reinforced plastic composite continuous tubing. The machine comprises a sample joint guide rail and a sliding carriage. The sliding carriage includes a first coiling device at the front, a second coiling device at the rear, and brackets on either side. The sliding carriage slides, coordinating with the reinforced plastic composite continuous tubing sample on the sample joint guide rail, and the sample is coiled onto the first coiling device or the second coiling device. The testing machine uses a traction system to push and pull the sliding carriage, reducing labor intensity and achieving a high degree of automation. The machine can be configured to simulate different circular coil rack reels of any size, replacing a large number of existing physical circular coil racks, saving testing costs and laboratory space, and making it possible to test the coiling performance of reinforced plastic composite continuous tubing.

[0027] The present invention discloses a method for testing the coiling performance of reinforced plastic composite continuous tubing using a testing machine. A traction system moves a sliding carriage, coordinating the movement of a reinforced plastic composite continuous tubing sample on a sample joint guide rail. All rollers in a first coiling device are brought into contact with the sample, and then the rollers stop sliding. After four hours, this process is repeated on a second coiling device. Ultimate pressure testing is then performed to determine the coiling performance of the reinforced plastic composite continuous tubing sample, and further adjustments are made to determine the minimum coiling size. The testing method provided by the present invention can simulate field conditions, is simple to operate, and offers high testing efficiency, making it easy to evaluate the coiling performance of reinforced plastic composite continuous tubing.

[0028] Furthermore, the outer circumferences of all rollers of the present invention are all concave structures, which is beneficial to reducing friction during the test process and protecting the outer protective layer of the composite coiled tubing from being damaged.

[0029] Furthermore, the intermediate roller assembly of the present invention is composed of two parallel rollers, which can avoid stress concentration on the sample in the early stage of the coiling test and can more realistically evaluate the coiling performance of the reinforced plastic composite continuous tubing.

[0030] Furthermore, the test machine of the present invention requires a sample length of only half the circumference of the simulated circular coil tube rack reel to complete the coiling test, thereby saving test costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a testing machine for detecting the coiling performance of reinforced plastic composite continuous tubes according to the present invention;

[0032] Figure 2 This is a schematic diagram of the testing process of the reinforced plastic composite continuous tube coiling performance testing machine of the present invention.

[0033] Among them: 1-sample; 2-sliding car; 3-track; 4-sample joint guide rail; 5-traction system; 6-fixing ring; 7-first winding device; 8-second winding device; 9-slide rail; 10-roller track frame; 11-groove; 12-moving slider; 13-sliding slot; 14-roller; 15-roller group; 16-limit sensor. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0035] The present invention is described in further detail below with reference to the accompanying drawings:

[0036] See also Figure 1 The present invention discloses a reinforced plastic composite continuous pipe coiling performance detection tester, including a sliding car 2 and a sample joint guide rail 4. The sliding car 2 includes a first coiling device 7 located in the front, a second coiling device 8 at the rear and brackets 9 on both sides.

[0037] The first winding device 7 and the second winding device 8 are both semicircular and symmetrically arranged. A plurality of roller track frames 10 are provided on each of the first winding device 7 and the second winding device 8, and the number of roller track frames 10 is at least four. Each roller track frame 10 is provided with a sliding slot 13. In one embodiment, each sliding slot 13 is mounted with a roller 14. In another embodiment, the middle sliding slot 13 is mounted with a roller assembly 15, which consists of two parallel rollers. The other sliding slots 13 are mounted with rollers 14, and the outer circumference of the rollers 14 is concave. By adjusting the position of the rollers 14 and the roller assembly 15 on the roller track frame 10, first winding devices 7 or second winding devices 8 of different diameters can be formed.

[0038] Both brackets 9 have a slot at the bottom, with rails 3 mounted underneath. Limit sensors 16 are located at both ends of the rails 3. A traction system 5 is mounted on the trolley 2, providing power for the trolley 2 to reciprocate on the rails 3. The traction system 5 includes a screw and a motor mounted on the screw. The motor drives the screw to push and pull the trolley 2.

[0039] There are two sample joint guide rails 4, each vertically positioned above the two brackets 9 and located on the same horizontal plane. Each of the sample joint guide rails 4 has a groove 11 on its upper surface, and a movable slider 12 is mounted on each groove 11. Prefabricated joints are provided at both ends of the sample 1, and fixed rings 6 are mounted on the joints. The fixed rings 6 are nested in the movable sliders 12 to slide the sample 1 and the sample joint guide rails 4 together. The sliding carriage 2 moves on the track 3 to coil the sample 1 onto the first coiling device 7 or the second coiling device 8.

[0040] See also Figure 2 The present invention discloses a testing method for a reinforced plastic composite continuous pipe coiling performance testing machine. The positions of all rollers 14 in the first coiling device 7 on the sliding carriage 2 are adjusted so that the distance L1 from all rollers 14 to the center of the first coiling device 7 is equal, that is, all rollers 14 can form a first coiling device 7 with a fixed diameter. The positions of all rollers 14 in the first coiling device 7 are fixed with fixing bolts. The positions of all rollers 14 in the second coiling device 8 on the sliding carriage 2 are adjusted so that the distance L2 from all rollers 14 to the center of the second coiling device 8 is equal, and L2 = L1, that is, all rollers 14 can form a second coiling device 8 with the same diameter as the first coiling device 7. The positions of all rollers 14 in the second coiling device 8 are fixed. The fixing rings 6 at both ends of the sample 1 are connected to the movable slider 12 on the sample joint guide rail 4. The traction system 5 is turned on, and the sliding carriage 2 is pushed downward so that all rollers 14 in the first coiling device 7 are in contact with the sample 1 and then stop sliding. Keep the specimen in this coiled state for at least four hours. Restart the traction system 5 and pull the sliding carriage 2 upward until all rollers 14 in the second coiling device 8 are in contact with the specimen 1. Then, stop sliding and keep the specimen 1 in this coiled state for at least four hours. Unless otherwise specified, a single test cycle is sufficient. If the standard or technical specifications for a specific project specify a specific number of coiling test repetitions, complete the coiling test frequency accordingly.

[0041] A pressure test system was used to conduct an ultimate pressure test on Sample 1. The ultimate failure pressure of Sample 1 was compared with the requirements of the standard or engineering technical specifications. Coilable reinforced plastic composite continuous tubing is generally divided into flexible composite high-pressure transmission pipe, steel-reinforced thermoplastic composite continuous tubing, and flexible composite continuous tubing for downhole use. Standards SY / T 6662.2-2012, SY / T 6662.4-2014, and SY / T 6662.6-2014 respectively set clear requirements for the ultimate failure pressure of these three types of pipes. The ultimate failure pressure cannot be less than three times the nominal pressure. Therefore, after the coiling test, the ultimate failure pressure of sample 1 is compared with the standards SY / T 6662.2-2012, SY / T 6662.4-2014, and SY / T 6662.6-2014. If the ultimate failure pressure of sample 1 is less than the requirements of standards SY / T 6662.2-2012, SY / T 6662.4-2014, and SY / T 6662.6-2014, the position of the roller 14 is adjusted to form a first coiling device and a second coiling device with a larger diameter, and the above steps are repeated with sample 1. The critical reel size is found through a series of tests. At this time, the size formed by the rollers on the first coiling device or the second coiling device is the minimum coiling size of the sample; if the ultimate failure pressure of sample 1 is greater than the requirements of standards SY / T 6662.2-2012, SY / T 6662.4-2014, and SY / T 6662.6-2014, the position of the roller 14 is adjusted to form a smaller first coiling device and a smaller second coiling device, and the above steps are repeated with the sample replaced. The critical reel size is found through a series of coiling tests. At this time, the size formed by the rollers on the first coiling device or the second coiling device is the minimum coiling size of the sample, which is used to characterize the coiling performance of the coilable reinforced plastic composite continuous pipe.

[0042] Example 1:

[0043] The coiling performance test was carried out on polyester fiber reinforced polyethylene plastic composite continuous pipe with a specification of DN90mm PN16MPa to determine the minimum coiling size.

[0044] Step 1: Adjust the positions of all rollers 14 in the first winding device 7 so that the distances L1 from all rollers 14 to the center of the first winding device 7 are equal, L1 = 1500 mm, and fix the rollers 14.

[0045] Step 2: adjust the positions of all rollers 14 in the second winding device 8 so that the distances L2 from all rollers 14 to the center of the second winding device 8 are equal, and L2 = L1 = 1500 mm, and fix the rollers 14.

[0046] Step 3: Fix both ends of a DN90mm PN16MPa polyester fiber reinforced polyethylene plastic composite continuous pipe sample 1 to the movable slider on the sample joint guide rail 4 through the fixing ring 6, and determine the coiling size of the first test to be 3000mm.

[0047] Step 4: Turn on the power of the testing machine and start the traction system 5 to slide the sliding carriage 2 forward. The first winding device 7 gradually approaches the sample 1 until the roller 14 and the roller group 15 on the first winding device 7 contact and fit with the sample 1. The sliding carriage 2 stops sliding and maintains the coiled state of the sample 1.

[0048] In step 5, the sample 1 is kept in the coiled state of step 4 for 4 hours, and the traction system 5 is started again to slide the sliding carriage 2 backward. The second coiling device 8 gradually approaches the sample 1 until the roller 14 and the roller assembly 15 on the second coiling device 8 contact and fit with the sample 1. The sliding carriage 2 stops sliding and keeps the sample 1 in the coiled state.

[0049] Step 6, keep the sample 1 in the coiled state of step 5 for 4 hours, start the traction system 5 to slide the sliding vehicle 2 forward to the initial position and stop, remove the sample 1 after coiling forward and backward respectively, connect the pressure testing machine to complete the ultimate pressure test, and obtain the ultimate pressure of sample 1 as 54.1MPa.

[0050] In step 7, the ultimate failure pressure of sample 1 was compared with the standard requirement. The result was greater than three times the nominal pressure of 48 MPa, indicating that the minimum coiling size of sample 1 was less than 3000 mm and that further coiling testing was required. A second DN90 mm PN16 MPa polyester fiber-reinforced polyethylene plastic composite continuous tubing sample 1 was installed, and the coiling size of the testing machine was adjusted to 2000 mm. The above steps were repeated, resulting in an ultimate pressure of 53.6 MPa for sample 1. This result was also greater than three times the nominal pressure of 48 MPa, indicating that the minimum coiling size of sample 1 was less than 2000 mm and that further coiling testing was required. A third DN90 mm PN16 MPa polyester fiber-reinforced polyethylene plastic composite continuous tubing sample 1 was installed, and the coiling size of the testing machine was adjusted to 1500 mm. The above steps were repeated, resulting in an ultimate pressure of 47.6 MPa for sample 1. This result was less than three times the nominal pressure of 48 MPa, indicating that the minimum coiling size of sample 1 cannot be less than or equal to 1500 mm. In order to obtain the accurate minimum coiling size, the coiling test was continued, and the fourth DN90mm PN16MPa polyester fiber reinforced polyethylene plastic composite continuous pipe sample 1 was installed. The coiling size of the testing machine was adjusted to 1600mm, and the above steps were repeated. The ultimate pressure of sample 1 was 49MPa, which was greater than 3 times the nominal pressure of 48MPa. The above test results show that the minimum coiling size of DN90mm PN16MPa polyester fiber reinforced polyethylene plastic composite continuous pipe sample 1 is 1600mm. Products of this specification cannot be coiled on a reel with a size less than 1600mm.

[0051] Example 2:

[0052] The coiling performance test was carried out on aramid fiber reinforced cross-linked polyethylene flexible composite continuous tubing with a specification of DN50mm PN25MPa to verify whether its minimum coiling size is 1200mm.

[0053] Step 1: adjust the positions of all rollers 14 in the first winding device 7 so that the distances L1 from all rollers 14 to the center of the first winding device 7 are equal, L1 = 600 mm, and fix the rollers 14.

[0054] Step 2: adjust the positions of all rollers 14 in the second winding device 8 so that the distances L2 from all rollers 14 to the center of the second winding device 8 are equal, and L2 = L1 = 600 mm, and fix the rollers 14.

[0055] Step 3: Fix both ends of a DN50mm PN25MPa aramid fiber reinforced cross-linked polyethylene downhole flexible composite continuous pipe sample 1 to the movable slider on the sample joint guide rail 4 through the fixing ring 6, and determine that the winding size of the testing machine is 1200mm.

[0056] Step 4: Turn on the power of the testing machine and start the traction system 5 to slide the sliding carriage 2 forward. At this time, the first winding device 7 gradually approaches the sample 1 until the roller 14 and the roller group 15 on the first winding device 7 contact and fit with the sample 1. The sliding carriage 2 stops sliding and maintains the coiled state of the sample 1.

[0057] In step 5, the sample 1 is kept in the coiled state of step 4 for 4 hours, and the traction system 5 is started again to slide the sliding carriage 2 backward. The second coiling device 8 gradually approaches the sample 1 until the roller 14 and the roller assembly 15 on the second coiling device 8 contact and fit with the sample 1. The sliding carriage 2 stops sliding and keeps the sample 1 in the coiled state.

[0058] In step 6, the sample 1 is kept in the coiled state in step 5 for 4 hours, the traction system 5 is started to slide the sliding vehicle 2 forward to the initial position and stop, the sample 1 after being coiled forward and backward is removed, and the pressure testing machine is connected to complete the ultimate pressure test. The ultimate pressure of the sample 1 is 78.4 MPa.

[0059] In step 7, the ultimate failure pressure of sample 1 is compared with the standard requirements. The result is greater than 3 times the nominal pressure of 75 MPa, verifying that 1200 mm meets the design target of the minimum coiling size of the product.

[0060] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A method for testing the coiling performance of reinforced plastic composite continuous tubes using a testing machine, characterized in that: The steps include: Step 1, adjusting the positions of all rollers (14) in the first winding device (7) so that the distances L1 from all rollers (14) to the center of the first winding device (7) are equal, and fixing the rollers (14); Step 2, adjusting the positions of all rollers (14) in the second winding device (8) so that the distances L2 from all rollers (14) to the center of the second winding device (8) are equal and L2 = L1, and fixing the rollers (14); Step 3, insert the fixed ring (6) onto the movable slider (12); Step 4, turning on the traction system (5), the sliding vehicle (2) slides along the track (3), and stops sliding after the sample (1) is in contact with all the rollers (14) in the first winding device (7); Step 5, keeping the sample (1) in the coiled state of step 4 for at least 4 hours, starting the traction system (5) again, and sliding the sliding vehicle (2) along the track (3) until the sample (1) is in contact with all the rollers (14) in the second coiling device (8) and then stops sliding; Step 6, keeping the sample (1) in the coiled state of step 5 for more than 4 hours, removing the sample (1), and using a hydraulic pressure testing machine to pressurize the sample (1) to perform an ultimate pressure test; Step 7, compare the ultimate failure pressure of the sample (1) with the standard requirements. If the ultimate failure pressure of the sample (1) is equal to the standard requirements, the size formed by the roller (14) on the first winding device (7) or the second winding device (8) is the minimum winding size of the sample (1), which is used to characterize the winding performance of the reinforced plastic composite continuous pipe; otherwise, adjust the distance from the roller (14) to the center of the first winding device (7) or the second winding device (8), replace the sample (1), and repeat steps 1-6 until the minimum winding size is found; The reinforced plastic composite continuous pipe coiling performance testing machine comprises a sliding car (2) and a sample joint guide rail (4), the sliding car (2) comprises a first coiling device (7) located in the front, a second coiling device (8) located in the rear and brackets (9) on both sides, the first coiling device (7) and the second coiling device (8) are both semicircular and symmetrically arranged, the bottoms of the two brackets (9) are provided with a slide groove, and the bottoms of the two brackets (9) are both installed with a track (3), and a traction system (5) is installed on the sliding car (2), and the traction system (5) provides the sliding car (2) with a plurality of traction grooves. The power is supplied to cause the sample joint guide rails (4) to reciprocate on the track (3); there are two sample joint guide rails (4), the setting direction of which is perpendicular to the movement direction of the sliding vehicle (2); a groove (11) is provided on the upper surface of each sample joint guide rail (4), and a movable slider (12) is installed on each groove (11); the sample (1) is slidably connected to the two sample joint guide rails (4) through the two movable sliders (12); and the sample (1) is wound on the first winding device (7) or the second winding device (8) by the sliding vehicle (2) moving on the track (3); A plurality of roller track frames (10) are provided on each of the first winding device (7) and the second winding device (8), each roller track frame (10) is provided with a sliding slot (13), and each sliding slot (13) is provided with a roller (14), and by adjusting the position of the roller (14) on the roller track frame (10), first winding devices (7) or second winding devices (8) with different diameters are formed; The number of roller track frames (10) on the first winding device (7) and the second winding device (8) is at least n, where n is greater than or equal to 3 and is an odd number.

2. The detection method of the reinforced plastic composite continuous tube coiling performance detection tester according to claim 1 is characterized in that: The outer circumference of the roller (14) is concave.

3. The detection method of the reinforced plastic composite continuous tube coiling performance detection tester according to claim 1 is characterized in that: Joints are prefabricated at both ends of the specimen (1), and fixed rings (6) are installed on the joints. The specimen (1) and the specimen joint guide rail (4) are slidably connected by nesting the fixed rings (6) on the movable slider (12).

4. The detection method of the reinforced plastic composite continuous tube coiling performance detection tester according to claim 1 is characterized in that: The traction system (5) includes a screw and a motor driving the screw, and the motor drives the screw to push and pull the sliding vehicle (2).

5. The detection method of the reinforced plastic composite continuous tube coiling performance detection tester according to claim 1, characterized in that: The traction system (5) uses a hydraulic system to push and pull the sliding vehicle (2).

6. The detection method of the reinforced plastic composite continuous tube coiling performance detection tester according to claim 1, characterized in that: Limit sensors (16) are provided at both ends of the track (3).

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