Testing device and testing method for corrosion detection of pipeline of refining device

Abstract

The invention relates to the technical field of pipeline corrosion detection, and particularly discloses a refining device pipeline corrosion detection testing device and a testing method.The refining device pipeline corrosion detection testing device comprises a mounting sleeve frame, mounting plates are fixedly connected to the two sides of the mounting sleeve frame, and first sleeving frames are fixedly connected to the surfaces of the mounting plates; through arrangement of the mounting sleeve frame, the first electric telescopic rods, the mounting plate, first rolling wheels, second electric telescopic rods, a cross-shaped positioning plate and second rolling wheels, during use, the first electric telescopic rods drive the mounting plate at the front end to move, and the mounting plate drives the first rolling wheels on the two sides of the surface to be in lap joint with the surface of a pipeline; a second electric telescopic rod drives a cross-shaped positioning plate at the bottom end to move, so that a second rolling wheel at the bottom of the cross-shaped positioning plate is in lap joint with the surface of the pipeline, and therefore, the device can be conveniently and stably in lap joint with the surface of the pipeline, and can conveniently move on the surface of the pipeline; therefore, the effect of stably mounting and moving the detection device on the surface of the pipeline is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline corrosion detection, and in particular relates to a pipeline corrosion detection test device and a test method for a refinery. Background Art

[0002] In the refining and chemical plant, the pipeline system is the core component for transmitting high temperature, high pressure and corrosive media. Its operating status is directly related to the safety and continuity of production. With the continuous advancement of industrial technology, pipeline corrosion detection technology has also made great progress. Traditional pipeline corrosion detection methods mainly include visual inspection, ultrasonic detection, X-ray detection and electrochemical corrosion monitoring. These methods have shown good detection effects within their respective applicable scopes, providing a strong guarantee for the safe operation of the refining and chemical plant.

[0003] In recent years, with the rapid development of sensor technology, automation technology and data processing technology, the pipeline corrosion detection technology of refining and chemical plants has made significant progress. A variety of new detection devices and methods have emerged, such as ultrasonic detection, eddy current detection, magnetic particle detection, etc. These technologies have improved the detection efficiency and accuracy to a certain extent. However, the existing detection methods have certain restrictions on the material and shape of the pipeline, and it is difficult to adapt to the complex and changeable pipeline system of refining and chemical plants; on the other hand, many detection methods have many inconveniences during installation and movement, and require a lot of manpower and time. Especially in the case of small internal space and compact pipeline layout of refining and chemical plants, the convenient installation and movement of detection devices has become a problem to be solved urgently, so staff need to improve them. Summary of the invention

[0004] The object of the present invention is to provide a pipeline corrosion detection and testing device and a testing method for a refinery to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pipeline corrosion detection and testing device for a refinery, comprising:

[0007] Install the frame;

[0008] Both sides of the mounting sleeve frame are fixedly connected with mounting plates, the surface of the mounting plate is fixedly connected with a first sleeve frame, one side of the inner wall of the first sleeve frame is fixedly connected with a first electric telescopic rod, the front end of the first electric telescopic rod is fixedly connected with the mounting plate, and both sides of the surface of the mounting plate are fixedly connected with first rolling wheels;

[0009] The top of the installation sleeve frame is fixedly connected to a second sleeve frame, the inner wall of the second sleeve frame is fixedly connected to a second electric telescopic rod, the bottom end of the second electric telescopic rod is fixedly connected to a cross positioning plate, and the bottom of the cross positioning plate is fixedly connected to second rolling wheels around.

[0010] Preferably, one side of the bottom of the installation frame is rotatably connected to a first arc-shaped connecting plate through a hinge, one side of the first arc-shaped connecting plate is fixedly connected to a fixing frame, the inner wall of the fixing frame is fixedly connected to a negative magnetic block, one side of the inner wall of the installation frame is fixedly connected to a second arc-shaped connecting plate, and the bottom of the second arc-shaped connecting plate is arranged on the top of the first arc-shaped connecting plate, and one side of the installation frame is fixedly connected to an assembly box.

[0011] Preferably, the inner wall of the assembly box is fixedly connected to a distributor, the bottom end of the distributor is electrically connected to a wire, the bottom end of the wire is electrically connected to an iron core, and the surface of the iron core is fixedly connected to the inner bottom wall of the assembly box, and the bottom of the iron core is attached to the top of the negative magnetic block.

[0012] Preferably, the inner walls of the first arc-shaped connecting plate and the second arc-shaped connecting plate are both fixedly connected with arc-shaped electric guide rails, and the two arc-shaped electric guide rails are arranged in a circular shape, and the inner walls of the arc-shaped electric guide rails are slidably connected with sliding blocks.

[0013] Preferably, a third electric telescopic rod is fixedly connected to the bottom of the sliding block, and a detector is fixedly connected to the bottom end of the third electric telescopic rod.

[0014] Preferably, a pipe is inserted into the inner wall of the installation frame, and the surface of the pipe overlaps the surfaces of the first rolling wheel and the second rolling wheel, and the surface of the pipe overlaps the bottom of the detector.

[0015] A testing method for a pipeline corrosion detection test device for a refinery, comprising the following steps:

[0016] S1. Sleeve the installation frame of the device on the pipeline of the refining device to be inspected, start the first electric telescopic rod, so that it drives the front mounting plate and the first rolling wheel to move to close contact with the pipeline surface, and stably install the device on both sides of the pipeline;

[0017] S2, start the second electric telescopic rod to drive the cross positioning plate and the second rolling wheel at the bottom to move to close contact with the pipeline surface, further stabilizing the device and facilitating movement on the pipeline surface;

[0018] S3, rotating the first arc-shaped connecting plate to merge it with the second arc-shaped connecting plate to form a circular arc-shaped connecting plate, and wrapping it around the periphery of the pipeline;

[0019] S4, connecting the power supply to the iron core through the distributor, so that the iron core forms a positive magnetic attraction block, which is adsorbed and connected with the negative magnetic attraction block, so that the first arc-shaped connecting plate is stably overlapped on the bottom of the installation frame;

[0020] S5, start the arc-shaped electric guide rail to drive the sliding block on the inner wall and the third electric telescopic rod and the detector at the bottom to move along the surface of the pipeline;

[0021] S6. According to the detection requirements, start the third electric telescopic rod and adjust the height of the detector so that it is close to the pipeline surface for detection;

[0022] S7. Record and analyze the pipeline corrosion data fed back by the detector to evaluate the corrosion condition of the pipeline.

[0023] Preferably, in step S3, the first arc-shaped connecting plate and the second arc-shaped connecting plate are combined to form a full-range wrapping of the pipeline, ensuring that the detector can perform comprehensive detection along the pipeline surface.

[0024] Preferably, in step S6, the adjustment range of the third electric telescopic rod should ensure that the detector can be in close contact with the pipeline surface while avoiding damage to the pipeline.

[0025] Preferably, in step S7, when recording and analyzing the data fed back by the detector, professional data processing software should be used to improve the accuracy and efficiency of data processing.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) By installing the frame, the first electric telescopic rod, the mounting plate, the first rolling wheel, the second electric telescopic rod, the cross positioning plate and the second rolling wheel, when in use, the first electric telescopic rod drives the mounting plate at the front end to move, and the mounting plate drives the first rolling wheels on both sides of the surface to overlap the surface of the pipe, so that the mounting frame is stably overlapped on the surface of the pipe, and the second electric telescopic rod drives the cross positioning plate at the bottom end to move, so that the second rolling wheel at the bottom of the cross positioning plate overlaps the surface of the pipe, thereby facilitating the device to be stably overlapped on the surface of the pipe and facilitating movement on the surface of the pipe, thereby achieving the effect of stably installing and moving the detection device on the surface of the pipe, and facilitating operation by the staff.

[0028] (2) Through the arrangement of the first arc-shaped connecting plate, the negative pole magnetic block, the second arc-shaped connecting plate, the distributor and the iron core, when in use, when the arc-shaped connecting plate is overlapped on the pipeline in the installation sleeve, the first arc-shaped connecting plate is rotated and overlapped to the bottom of the installation sleeve, and the iron core is connected to the power supply through the distributor, and the iron core forms a positive pole magnetic block, so that the positive pole magnetic block and the negative pole magnetic block are adsorbed and connected, thereby stably overlapping the first arc-shaped connecting plate on the bottom of the installation sleeve, so that the second arc-shaped connecting plate and the first arc-shaped connecting plate are combined to form a circular arc-shaped connecting plate, which wraps the pipeline in a full range, thereby achieving the effect of conveniently wrapping the pipeline and facilitating the operation of the staff.

[0029] (3) Through the arrangement of the first arc-shaped connecting plate, the second arc-shaped connecting plate, the arc-shaped electric guide rail, the sliding block, the third electric telescopic rod, the detector and the pipeline, when in use, the arc-shaped electric guide rail drives the sliding block arranged on the inner wall to move, the sliding block drives the third electric telescopic rod at the bottom to move in a circular shape, and the third electric telescopic rod drives the detector at the bottom to adjust the height, so that the detector adjusts the height to be close to the pipeline, and moves along the arc-shaped electric guide rail on the pipeline surface for detection, thereby achieving the effect of convenient detection of the pipeline surface and facilitating the operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 A three-dimensional diagram of the installation frame of the present invention;

[0032] Figure 3 A three-dimensional diagram of the arc-shaped electric guide rail of the present invention;

[0033] Figure 4 is a three-dimensional diagram of the second rolling wheel of the present invention;

[0034] Figure 5 is a three-dimensional diagram of the first rolling wheel of the present invention;

[0035] In the figure: 1. Installation frame; 2. Installation plate; 3. First sleeve frame; 4. First electric telescopic rod; 5. Installation plate; 6. First rolling wheel; 7. Second sleeve frame; 8. Second electric telescopic rod; 9. Cross positioning plate; 10. Second rolling wheel; 11. First arc-shaped connecting plate; 12. Fixed frame; 13. Negative magnetic block; 14. Second arc-shaped connecting plate; 15. Assembly box; 16. Distributor; 17. Wire; 18. Iron core; 19. Arc-shaped electric guide rail; 20. Sliding block; 21. Third electric telescopic rod; 22. Detector; 23. Pipeline. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figures 1 to 5 As shown, a pipeline corrosion detection and testing device for a refinery comprises:

[0039] Install the frame 1;

[0040] Both sides of the mounting frame 1 are fixedly connected with mounting plates 2, the surface of the mounting plate 2 is fixedly connected with a first sleeve frame 3, one side of the inner wall of the first sleeve frame 3 is fixedly connected with a first electric telescopic rod 4, the front end of the first electric telescopic rod 4 is fixedly connected with a mounting plate 5, and both sides of the surface of the mounting plate 5 are fixedly connected with first rolling wheels 6;

[0041] The top of the mounting frame 1 is fixedly connected with a second sleeve frame 7, the inner wall of the second sleeve frame 7 is fixedly connected with a second electric telescopic rod 8, the bottom end of the second electric telescopic rod 8 is fixedly connected with a cross positioning plate 9, and the bottom of the cross positioning plate 9 is fixedly connected with second rolling wheels 10 around it.

[0042] When in use, a first sleeve frame 3 is provided on both sides of the installation sleeve frame 1 through the installation plate 2, and a first electric telescopic rod 4 is provided on the inner wall of the first sleeve frame 3. The staff connects the first electric telescopic rod 4 to the power supply, and the first electric telescopic rod 4 drives the front end installation plate 5 to move, and the installation plate 5 drives the first rolling wheels 6 on both sides of the surface to overlap the surface of the pipe 23, so that the installation sleeve frame 1 is stably overlapped on the surface of the pipe 23, and a second electric telescopic rod 8 is provided on the top of the installation sleeve frame 1 through the second sleeve frame 7. The staff connects the second electric telescopic rod 8 to the power supply, and the second electric telescopic rod 8 drives the cross positioning plate 9 at the bottom to move, so that the second rolling wheel 10 at the bottom of the cross positioning plate 9 overlaps the surface of the pipe 23, thereby facilitating the device to be stably overlapped on the surface of the pipe 23 and facilitating movement on the surface of the pipe 23.

[0043] Embodiment 2:

[0044] See also Figures 1 to 5As shown, one side of the bottom of the mounting frame 1 is rotatably connected to a first arc-shaped connecting plate 11 through a hinge, one side of the first arc-shaped connecting plate 11 is fixedly connected to a fixing frame 12, an inner wall of the fixing frame 12 is fixedly connected to a negative pole magnetic block 13, one side of the inner wall of the mounting frame 1 is fixedly connected to a second arc-shaped connecting plate 14, and the bottom of the second arc-shaped connecting plate 14 is arranged on the top of the first arc-shaped connecting plate 11, one side of the mounting frame 1 is fixedly connected to an assembly box 15, an inner wall of the assembly box 15 is fixedly connected to a distributor 16, a bottom end of the distributor 16 is electrically connected to a wire 17, a bottom end of the wire 17 is electrically connected to an iron core 18, and a surface of the iron core 18 is fixedly connected to the inner bottom wall of the assembly box 15, and the bottom of the iron core 18 is attached and connected to the top of the negative pole magnetic block 13.

[0045] When in use, a first arc-shaped connecting plate 11 is rotatably provided at the bottom of the mounting frame 1 through a hinge. When the mounting frame 1 is overlapped on the pipe 23, the first arc-shaped connecting plate 11 is rotated and overlapped to the bottom of the mounting frame 1. A negative pole magnetic block 13 is provided on one side of the first arc-shaped connecting plate 11 through a fixing frame 12, and an assembly box 15 is provided at the bottom of one side of the mounting frame 1. A distributor 16 is provided on the inner wall of the assembly box 15. The bottom of the distributor 16 is provided through a fixing frame 12. The conductor 17 is electrically provided with an iron core 18, and the iron core 18 is connected to a power supply through the distributor 16. The iron core 18 forms a positive magnetic block, so that the positive magnetic block is adsorbed and connected to the negative magnetic block 13, thereby stably overlapping the first arc-shaped connecting plate 11 at the bottom of the mounting frame 1, and a second arc-shaped connecting plate 14 is provided on the inner wall of the mounting frame 1, so that the second arc-shaped connecting plate 14 and the first arc-shaped connecting plate 11 are combined to form a circular arc-shaped connecting plate, which fully wraps the pipeline 23.

[0046] Embodiment three:

[0047] See also Figures 1 to 5 As shown, the inner walls of the first arc-shaped connecting plate 11 and the second arc-shaped connecting plate 14 are fixedly connected with arc-shaped electric guide rails 19, and the two arc-shaped electric guide rails 19 are arranged in a circular shape, the inner wall of the arc-shaped electric guide rail 19 is slidably connected with a sliding block 20, the bottom of the sliding block 20 is fixedly connected with a third electric telescopic rod 21, the bottom end of the third electric telescopic rod 21 is fixedly connected with a detector 22, the inner wall of the mounting frame 1 is plugged with a pipe 23, and the surface of the pipe 23 overlaps the surface of the first rolling wheel 6 and the second rolling wheel 10, and the surface of the pipe 23 overlaps the bottom of the detector 22.

[0048] When in use, arc-shaped electric guide rails 19 are provided on the inner walls of the first arc-shaped connecting plate 11 and the second arc-shaped connecting plate 14. The staff connects the arc-shaped electric guide rails 19 to a power source, and the arc-shaped electric guide rails 19 drive the sliding block 20 slidably arranged on the inner wall to move, and the sliding block 20 drives the third electric telescopic rod 21 at the bottom to move in a circle. The staff connects the third electric telescopic rod 21 to a power source, and the third electric telescopic rod 21 drives the detector 22 at the bottom to adjust the height, so that the detector 22 adjusts the height to be close to the pipe 23, and moves on the surface of the pipe 23 for detection along with the arc-shaped electric guide rails 19.

[0049] Embodiment 4:

[0050] See also Figures 1 to 5 As shown, a testing method for a pipeline corrosion detection test device for a refinery comprises the following steps:

[0051] S1. Sleeve the installation frame 1 of the device onto the pipeline 23 of the refinery to be inspected, start the first electric telescopic rod 4, and drive the front mounting plate 5 and the first rolling wheel 6 to move to close contact with the surface of the pipeline 23, and stably install the device on both sides of the pipeline 23;

[0052] S2, start the second electric telescopic rod 8, so that it drives the cross positioning plate 9 and the second rolling wheel 10 at the bottom to move to close contact with the surface of the pipe 23, further stabilizing the device and facilitating movement on the surface of the pipe;

[0053] S3, rotating the first arc-shaped connecting plate 11 to combine it with the second arc-shaped connecting plate 14 to form an annular arc-shaped connecting plate, and wrapping it around the periphery of the pipe 23;

[0054] S4, power is supplied to the iron core 18 through the distributor 16, so that the iron core 18 forms a positive magnetic attraction block, which is adsorbed and connected with the negative magnetic attraction block 13, so that the first arc-shaped connecting plate 11 is stably overlapped on the bottom of the installation sleeve frame 1;

[0055] S5, start the arc-shaped electric guide rail 19, so that it drives the sliding block 20 on the inner wall and the third electric telescopic rod 21 and the detector 22 at the bottom to move along the surface of the pipe 23;

[0056] S6. According to the detection requirements, the third electric telescopic rod 21 is started, and the height of the detector 22 is adjusted so that it is close to the surface of the pipe 23 for detection;

[0057] S7. Record and analyze the corrosion data of the pipeline 230 fed back by the detector to evaluate the corrosion condition of the pipeline 230.

[0058] In step S3 , the first arc-shaped connecting plate 11 and the second arc-shaped connecting plate 14 are combined to form a full-range wrapping of the pipeline 23 , ensuring that the detector 22 can perform comprehensive detection along the surface of the pipeline 23 .

[0059] In step S6 , the adjustment range of the third electric telescopic rod 21 should ensure that the detector 22 can closely contact the surface of the pipeline 23 while avoiding damage to the pipeline 23 .

[0060] In step S7, when recording and analyzing the data fed back by the detector 22, professional data processing software should be used to improve the accuracy and efficiency of data processing.

[0061] Embodiment five:

[0062] See also Figures 1 to 5 As shown in the figure, in the refining and chemical unit, the pipeline system carries the task of transmitting high temperature, high pressure and corrosive media, and is a key component to ensure production safety and continuous operation. However, long-term operation and harsh working conditions often lead to varying degrees of corrosion on the inner and outer walls of the pipeline, which not only affects the structural integrity and service life of the pipeline, but may also cause serious safety accidents. Therefore, regular corrosion inspection of the pipelines of the refining and chemical unit to timely discover and deal with potential corrosion problems is of great significance to ensure production safety and reduce maintenance costs.

[0063] The installation sleeve frame 1 of the refinery pipeline corrosion detection and testing device is sleeved on the refinery pipeline 23 to be detected.

[0064] The first electric telescopic rod 4 is started to drive the front mounting plate 5 and the first rolling wheel 6 to move to close contact with the surface of the pipe 23 to ensure that the device is stably installed on both sides of the pipe 23.

[0065] The second electric telescopic rod 8 is started to drive the cross positioning plate 9 and the second rolling wheel 10 at the bottom to move to close contact with the surface of the pipe 23, further stabilizing the device and facilitating subsequent movement on the pipe surface.

[0066] The first arc-shaped connecting plate 11 is rotated to be combined with the second arc-shaped connecting plate 14 to form an annular arc-shaped connecting plate, which is wrapped around the periphery of the pipe 23 .

[0067] The iron core 18 is powered by the distributor 16 , so that the iron core 18 forms a positive magnetic block, which is adsorbed and connected to the negative magnetic block 13 , thereby stably overlapping the first arc-shaped connecting plate 11 on the bottom of the installation frame 1 .

[0068] The arc-shaped electric guide rail 19 is started to drive the sliding block 20 on the inner wall and the third electric telescopic rod 21 and the detector 22 at the bottom to move along the surface of the pipeline 23 .

[0069] According to the detection needs, the third electric telescopic rod 21 is started, and the height of the detector 22 is adjusted so that it is in close contact with the surface of the pipeline 23 without causing damage, and the detection is carried out.

[0070] The corrosion data of the pipeline 23 fed back by the detector 22 is recorded.

[0071] The recorded data is analyzed using professional data processing software to evaluate the corrosion condition of the pipeline 23.

[0072] By providing the first electric telescopic rod 4, the second electric telescopic rod 8 and the rolling wheels, the device can be stably installed and conveniently moved on the surface of the pipeline.

[0073] The first arc-shaped connecting plate 11 and the second arc-shaped connecting plate 14 are combined to form a full-range wrapping of the pipeline 23 , ensuring that the detector 22 can perform comprehensive detection along the surface of the pipeline 23 .

[0074] The adjustment range of the third electric telescopic rod 21 ensures that the detector 22 can closely contact the surface of the pipeline 23 for detection, while avoiding damage to the pipeline.

[0075] Professional data processing software is used to record and analyze test data, which improves the accuracy and efficiency of data processing.

[0076] Working principle: When in use, the staff connects the first electric telescopic rod 4 to the power supply, and the first electric telescopic rod 4 drives the front mounting plate 5 to move, and the mounting plate 5 drives the first rolling wheels 6 on both sides of the surface to overlap the surface of the pipe 23, so that the mounting frame 1 is stably overlapped on the surface of the pipe 23, and the staff connects the second electric telescopic rod 8 to the power supply, and the second electric telescopic rod 8 drives the cross positioning plate 9 at the bottom to move, so that the second rolling wheel 10 at the bottom of the cross positioning plate 9 overlaps the surface of the pipe 23, thereby facilitating the device to be stably overlapped on the surface of the pipe 23 and facilitating movement on the surface of the pipe 23, and when the first arc-shaped connecting plate 11 overlaps the pipe 23 on the mounting frame 1, the first arc-shaped connecting plate 11 rotates and overlaps to the bottom of the mounting frame 1, and the iron core 18 is connected to the power supply through the distributor 16, and the iron core 18 forms a positive electrode The magnetic block makes the positive magnetic block and the negative magnetic block 13 adsorbed and connected, thereby stably overlapping the first arc-shaped connecting plate 11 on the bottom of the installation frame 1, and a second arc-shaped connecting plate 14 is provided on the inner wall of the installation frame 1, so that the second arc-shaped connecting plate 14 and the first arc-shaped connecting plate 11 are combined to form a circular arc-shaped connecting plate, which wraps the pipeline 23 in a full range. The staff connects the arc-shaped electric guide rail 19 to the power supply, and the arc-shaped electric guide rail 19 drives the sliding block 20 slidingly arranged on the inner wall to move, and the sliding block 20 drives the third electric telescopic rod 21 at the bottom to move in a circle. The staff connects the third electric telescopic rod 21 to the power supply, and the third electric telescopic rod 21 drives the detector 22 at the bottom to adjust the height, so that the detector 22 adjusts the height to be close to the pipeline 23, and moves along the surface of the pipeline 23 with the arc-shaped electric guide rail 19 for detection.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline corrosion detection and testing device for a refinery, characterized in that: include: Installing the casing (1); Both sides of the mounting sleeve frame (1) are fixedly connected to mounting plates (2), the surface of the mounting plate (2) is fixedly connected to a first sleeve frame (3), one side of the inner wall of the first sleeve frame (3) is fixedly connected to a first electric telescopic rod (4), the front end of the first electric telescopic rod (4) is fixedly connected to a mounting plate (5), and both sides of the surface of the mounting plate (5) are fixedly connected to first rolling wheels (6); The top of the installation sleeve frame (1) is fixedly connected to a second sleeve frame (7), the inner wall of the second sleeve frame (7) is fixedly connected to a second electric telescopic rod (8), the bottom end of the second electric telescopic rod (8) is fixedly connected to a cross positioning plate (9), and the bottom of the cross positioning plate (9) is fixedly connected to second rolling wheels (10) around its periphery.

2. A pipeline corrosion detection and testing device for a refinery according to claim 1, characterized in that: A first arc-shaped connecting plate (11) is rotatably connected to one side of the bottom of the installation sleeve (1) via a hinge, a fixed frame (12) is fixedly connected to one side of the first arc-shaped connecting plate (11), a negative pole magnetic attraction block (13) is fixedly connected to the inner wall of the fixed frame (12), a second arc-shaped connecting plate (14) is fixedly connected to one side of the inner wall of the installation sleeve (1), and the bottom of the second arc-shaped connecting plate (14) is arranged on the top of the first arc-shaped connecting plate (11), and an assembly box (15) is fixedly connected to one side of the installation sleeve (1).

3. A pipeline corrosion detection and testing device for a refinery according to claim 2, characterized in that: The inner wall of the assembly box (15) is fixedly connected to a distributor (16), the bottom end of the distributor (16) is electrically connected to a wire (17), the bottom end of the wire (17) is electrically connected to an iron core (18), and the surface of the iron core (18) is fixedly connected to the inner bottom wall of the assembly box (15), and the bottom of the iron core (18) is attached to the top of the negative pole magnetic attraction block (13).

4. A pipeline corrosion detection and testing device for a refinery according to claim 2, characterized in that: The inner walls of the first arc-shaped connecting plate (11) and the second arc-shaped connecting plate (14) are both fixedly connected with an arc-shaped electric guide rail (19), and the two arc-shaped electric guide rails (19) are arranged in a circular shape. The inner walls of the arc-shaped electric guide rails (19) are slidably connected with a sliding block (20).

5. A pipeline corrosion detection and testing device for a refinery according to claim 4, characterized in that: The bottom of the sliding block (20) is fixedly connected to a third electric telescopic rod (21), and the bottom end of the third electric telescopic rod (21) is fixedly connected to a detector (22).

6. The corrosion detection and testing device for pipelines of a refinery according to claim 1, characterized in that: A pipe (23) is inserted into the inner wall of the installation frame (1), and the surface of the pipe (23) overlaps the surfaces of the first rolling wheel (6) and the second rolling wheel (10), and the surface of the pipe (23) overlaps the bottom of the detector (22).

7. A testing method for a pipeline corrosion detection and testing device for a refinery, applicable to a pipeline corrosion detection and testing device for a refinery as claimed in claims 1 to 6, characterized in that: The following steps are involved: S1. The installation sleeve (1) of the device is sleeved on the pipeline (23) of the refinery to be inspected, and the first electric telescopic rod (4) is started to drive the front installation plate (5) and the first rolling wheel (6) to move to close contact with the surface of the pipeline (23), so as to stably install the device on both sides of the pipeline (23); S2, start the second electric telescopic rod (8), so that it drives the cross positioning plate (9) and the second rolling wheel (10) at the bottom to move to close contact with the surface of the pipeline (23), further stabilizing the device and facilitating movement on the pipeline surface; S3, rotating the first arc-shaped connecting plate (11) so as to merge it with the second arc-shaped connecting plate (14) to form an annular arc-shaped connecting plate, and wrapping it around the periphery of the pipe (23); S4, connecting the iron core (18) to a power source through the distributor (16), so that the iron core (18) forms a positive magnetic attraction block, which is adsorbed and connected to the negative magnetic attraction block (13), thereby stably overlapping the first arc-shaped connecting plate (11) at the bottom of the installation sleeve frame (1); S5, starting the arc-shaped electric guide rail (19), so that it drives the sliding block (20) on the inner wall and the third electric telescopic rod (21) and the detector (22) at the bottom to move along the surface of the pipeline (23); S6. According to the detection requirements, the third electric telescopic rod (21) is started, and the height of the detector (22) is adjusted so that it is close to the surface of the pipeline (23) for detection; S7. Record and analyze the corrosion data of the pipeline (230) fed back by the detector to evaluate the corrosion condition of the pipeline (230).

8. The testing method of a pipeline corrosion detection and testing device for a refinery according to claim 7, characterized in that: In step S3, the first arc-shaped connecting plate (11) and the second arc-shaped connecting plate (14) are combined to form a full-range wrapping of the pipeline (23), ensuring that the detector (22) can perform comprehensive detection along the surface of the pipeline (23).

9. The testing method of a pipeline corrosion detection and testing device for a refinery according to claim 7, characterized in that: In step S6, the adjustment range of the third electric telescopic rod (21) should ensure that the detector (22) can be in close contact with the surface of the pipeline (23) while avoiding damage to the pipeline (23).

10. The testing method of a pipeline corrosion detection and testing device for a refinery according to claim 7, characterized in that: In step S7, when recording and analyzing the data fed back by the detector (22), professional data processing software should be used to improve the accuracy and efficiency of data processing.

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