Device for detecting corrosion resistance of high pour-point oil pipeline

Abstract

The invention belongs to the technical field of pipeline detection equipment, and relates to high pour-point oil pipeline anti-corrosion performance detection equipment which comprises an equipment shell, a central column, a driving unit and a distance measuring system. A center column capable of relatively rotating is arranged in an equipment shell, current adjusting units are symmetrically arranged on the two sides of the center column, and a closed-loop control system composed of an arc-shaped plate, an abutting rod and an adjustable resistor is included. When the device advances in a bent pipeline, relative deflection of the shell and the center column drives the arc-shaped plate to push the abutting rod, the loop resistance value is changed through the sliding connector, then the braking force of the electromagnetic powder brake on the driving wheel is adjusted, and self-adaptive speed regulation is achieved. The distance measuring motor drives the distance measuring instrument to rotate at high speed to collect pipeline inner wall data. According to the invention, by automatically correcting the detection posture, accurate corrosion detection data can be obtained in both the straight pipe section and the bent pipe section, and the technical problem that the measurement of a traditional detection device in the bent pipe section is not accurate is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection equipment, and specifically, it is a corrosion prevention performance detection equipment for high pour point oil pipelines. Background Art

[0002] During the long-term operation of high pour point oil pipelines, due to the complex composition of crude oil, high sulfur content, and environmental factors, the inner wall is extremely prone to corrosion, seriously affecting the safe operation of the pipeline. Traditional detection methods mainly rely on manual inspections or fixed detection equipment, which are difficult to adapt to different pipe diameters and complex working conditions. Especially in the curved pipe section, the detection device is prone to tilt due to the internal and external path differences, resulting in distorted ranging data. In the prior art, although some automated detection equipment can move along the pipeline, it lacks an adaptive adjustment mechanism and cannot correct the attitude deviation caused by pipeline bending in real time, resulting in insufficient corrosion detection accuracy. In addition, conventional detection devices often have a fixed structure, making it difficult to adapt to different specifications of pipelines, and there is a lack of intuitive visual analysis means for detection data.

[0003] In view of this, the present invention proposes a corrosion prevention performance detection equipment for high pour point oil pipelines, which solves the above technical problems. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] A corrosion prevention performance detection equipment for high pour point oil pipelines includes an equipment housing. There is a cavity inside the equipment housing, and a central column is rotatably connected in the cavity through a bearing. Two current adjustment units are symmetrically arranged on the central column; Among them, the current adjustment unit includes an arc-shaped plate. The arc-shaped plate is arranged on one side of the central column. One side of the arc-shaped plate abuts against a movable abutting rod. A sliding joint is provided at the lower end of the abutting rod. A resistor is abutted below the sliding joint. One end of the resistor away from the arc-shaped plate is connected to an electromagnetic powder brake through a circuit. The electromagnetic powder brake is fixedly connected to the shaft of a driving wheel. When the central column rotates, it drives the arc-shaped plate to squeeze the abutting rod, so that the abutting rod drives the sliding joint to adjust the resistance value connected, and further controls the input current of the electromagnetic powder brake to adaptively adjust the rotation speed of the driving wheel.

[0006] Preferably, a turntable is fixedly connected to the middle of the central column, and an arc-shaped plate is fixedly connected to the turntable.

[0007] Preferably, one end of the abutting rod away from the arc-shaped plate slides and extends into a sleeve. The sleeve is fixedly connected to the side wall of the cavity. The abutting rod is fixedly connected to the sleeve through a return spring.

[0008] Preferably, the resistor is fixedly connected to the side wall of the cavity. One end of the resistor away from the turntable is fixedly connected with a first terminal, and the sliding contact is fixedly connected with a second terminal.

[0009] Preferably, the first terminal is connected to the electromagnetic powder brake through a circuit, and the second terminal is connected to the mobile power supply through a circuit, forming a closed loop of the mobile power supply, the second terminal, the resistor, the first terminal and the electromagnetic powder brake.

[0010] Preferably, four driving units are provided on the outer side of the equipment shell. The driving unit includes a connecting seat, a connecting plate is detachably connected to the connecting seat, an end plate is fixedly connected to the end of the connecting plate, a driving wheel is installed at the end of the end plate through a spring rod, and the driving wheel is driven by a driving motor.

[0011] Preferably, the connecting plate is selectively replaced according to the current high-viscosity oil pipeline, so as to be able to match the radius of the current high-viscosity oil pipeline to be measured.

[0012] Preferably, the driving units symmetrically arranged up and down in the equipment shell are fixedly connected to the upper and lower ends of the central column through the connecting seat, and the driving units symmetrically arranged left and right in the equipment shell are respectively fixedly connected to the left and right sides of the equipment shell through the connecting seat.

[0013] Preferably, a ranging motor is fixedly connected to one side of the equipment shell, and a rangefinder is fixedly connected to the output shaft of the ranging motor.

[0014] Preferably, a limiting rod is fixedly connected to the central column, limiting blocks are arranged on both sides of the limiting rod, and the limiting blocks are fixedly connected to the bottom of the cavity.

[0015] Advantages of the present invention: The anti-corrosion performance detection equipment for high-viscosity oil pipelines provided by the present invention realizes the adaptive speed regulation function during the pipeline detection process through the linkage of the innovative current adjustment unit and the electromagnetic powder brake. When the device tilts due to the internal and external path differences in the curved pipeline, the relative rotation of the central column and the shell will drive the arc-shaped plate to push the abutting rod, dynamically adjusting the loop resistance value, so as to accurately control the braking force of the electromagnetic powder brake on the driving wheel, so that the best deceleration intensity is automatically matched according to the pipeline bending degree, ensuring that the detection device is always parallel to the pipeline cross-section, and enabling the rangefinder to obtain accurate radius measurement data. A line graph of the inner wall contour of the pipeline is generated in real time, accurately identifying the position and degree of the inner wall corrosion defect. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Wherein: Figure 1 It is a schematic diagram of the overall structure of a corrosion prevention performance detection device for high pour point oil pipelines of the present invention; Figure 2 It is a schematic diagram of the back connection structure of a corrosion prevention performance detection device for high pour point oil pipelines of the present invention; Figure 3 It is a schematic diagram of the connection structure inside the housing of a corrosion prevention performance detection device for high pour point oil pipelines of the present invention; Figure 4 For the present invention Figure 3 An enlarged schematic diagram of the structure at A in it; Figure 5 It is a schematic diagram of the connection structure of the current adjustment unit in a corrosion prevention performance detection device for high pour point oil pipelines of the present invention; Figure 6 For the present invention Figure 5 An enlarged schematic diagram of the structure at B in it; Figure 7 It is a schematic diagram of the working state of a corrosion prevention performance detection device for high pour point oil pipelines of the present invention in a high pour point oil pipeline; Figure 8 It is a schematic diagram of a rangefinder detecting a high pour point oil pipeline in a corrosion prevention performance detection device for high pour point oil pipelines of the present invention; Figure 9 It is a schematic diagram of the working state of a corrosion prevention performance detection device for high pour point oil pipelines of the present invention in an arc-shaped high pour point oil pipeline; Figure 10 It is a broken line schematic diagram of the distance data measured by the rangefinder of the present invention and the moving length of the driving wheel.

[0018] In the figure: 1. Equipment housing; 2. Cavity; 3. Central column; 4. Turntable; 5. Current adjustment unit; 51. Arc-shaped plate; 52. Abutting rod; 53. Sleeve; 54. Return spring; 57. Resistor; 58. First wiring terminal; 59. Second wiring terminal; 510. Sliding joint; 6. Driving unit; 61. Connecting seat; 62. Connecting plate; 63. End plate; 64. Spring rod; 65. Driving wheel; 66. Driving motor; 67. Electromagnetic powder brake; 7. Rangefinder motor; 8. Rangefinder; 9. Mobile power supply; 10. Limit block; 11. Limit rod; 100, High pour point oil pipeline. Specific implementation mode

[0019] In order to make the invention objectives, features, and advantages of the present invention more obvious and understandable, the following will combine 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 embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0020] Embodiment: As Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a corrosion resistance detection device for high pour point oil pipelines includes a device housing 1. There is a cavity 2 inside the device housing 1. A central column 3 is rotatably connected in the cavity 2 through a bearing. Two current adjustment units 5 are symmetrically arranged on the central column 3; Among them, the current adjustment unit 5 includes an arc-shaped plate 51. The arc-shaped plate 51 is arranged on one side of the central column 3. One side of the arc-shaped plate 51 abuts against a movable abutting rod 52. A sliding joint 510 is provided at the lower end of the abutting rod 52. A resistor 57 abuts against the lower part of the sliding joint 510. One end of the resistor 57 away from the arc-shaped plate 51 is connected to an electromagnetic powder brake 67 through an electric circuit. The electromagnetic powder brake 67 is fixedly connected to the shaft of a driving wheel 65. When the central column 3 rotates, it drives the arc-shaped plate 51 to squeeze the abutting rod 52, so that the abutting rod 52 drives the sliding joint 510 to adjust the size of the resistor 57 connected, and then controls the input current of the electromagnetic powder brake 67 to adaptively adjust the rotation speed of the driving wheel 65. In the closed loop formed by a mobile power source 9, a second terminal 59, a resistor 57, a first terminal 58, and an electromagnetic powder brake 67, the magnitude of the current is controlled by the length of the connected resistor 57, so as to control the magnetic magnitude in the electromagnetic powder brake 67, and the viscosity of the powder is controlled by the magnetic field to realize the function of adjusting the speed of the driving wheel 65.

[0021] A turntable 4 is fixedly connected to the middle of the central column 3, and an arc-shaped plate 51 is fixedly connected to the turntable 4.

[0022] One end of the abutting rod 52 away from the arc-shaped plate 51 slides and extends into a sleeve 53. The sleeve 53 is fixedly connected to the side wall of the cavity 2. The abutting rod 52 is fixedly connected to the sleeve 53 through a return spring 54.

[0023] The resistor 57 is fixedly connected to the side wall of the cavity 2. One end of the resistor 57 away from the turntable 4 is fixedly connected with a first terminal 58, and a second terminal 59 is fixedly connected to the sliding joint 510.

[0024] The first terminal 58 is connected to the electromagnetic powder brake 67 through an electric circuit, and the second terminal 59 is connected to the mobile power supply 9 through an electric circuit, forming a closed loop of the mobile power supply 9, the second terminal 59, the resistor 57, the first terminal 58 and the electromagnetic powder brake 67.

[0025] A limiting rod 11 is fixedly connected to the central column 3. Limiting blocks 10 are arranged on both sides of the limiting rod 11, and the limiting blocks 10 are fixedly connected to the bottom of the cavity 2. The limiting rod 11 and the limiting blocks 10 are used to prevent the relative rotation of the central column 3 and the device housing 1 from exceeding the adjustment range.

[0026] First of all, it is necessary to understand that the driving motor 66 of the driving unit 6 drives the driving wheel 65 at the same speed. The driving motor 66 is powered by the mobile power supply 9. For the high pour point oil pipeline 100 to be measured, install this device in the high pour point oil pipeline 100 in the Figure 7 shown direction, so that this device is in a horizontal state, and the driving wheel 65 with the electromagnetic powder brake 67 is in contact with the left and right side walls of the high pour point oil pipeline 100. This device is suitable for detecting the internal corrosion of the horizontally installed high pour point oil pipeline 100.

[0027] In this embodiment, as Figure 7 shown, when this device detects the straight type of high pour point oil pipeline 100, since the inner wall lengths of the upper, lower, left and right four positions in the straight type of high pour point oil pipeline 100 are the same, and at the same time the driving wheels 65 rotate at the same speed, the device housing 1 has been moving at a constant speed, and the cross section of the device housing 1 and the high pour point oil pipeline 100 has always been parallel. As Figure 9 shown, when in the bent high pour point oil pipeline 100, since the driving wheels 65 rotate at the same speed, the inner wall length of one side of the left and right sides in the high pour point oil pipeline 100 is shorter than that of the other side (the path of the bent high pour point oil pipeline 100 can be regarded as a semi-circle, and it can be known that the distance of the inner wall of the pipeline on the side closer to the center of the circle is shorter), and because the driving wheels 65 rotate at the same speed, the device housing 1 is tilted as Figure 9 shown, the device housing 1 will deflect relative to the central column 3, causing the device housing 1 to drive the distance measuring instrument 8 to deflect, so that the distance measuring instrument 8 cannot measure an effective distance (because after the distance measuring instrument 8 deflects, the distance measuring instrument 8 and the cross section of the high pour point oil pipeline 100 are not parallel, and the measured data is not the radius data of the high pour point oil pipeline 100, so it cannot be used as a judgment basis).

[0028] According to the above process, when the device housing 1 and the center column 3 rotate relative to each other, the turntable 4 on the center column 3 drives the arc plate 51 to squeeze the abutment rod 52, and the abutment rod 52 slides into the sleeve 53 and compresses the reset spring 54. When the abutment rod 52 slides in, it drives the sliding joint 510 to move, and the sliding joint 510 moves on the resistor 57. Because the mobile power supply 9, the second terminal 59, the resistor 57, the first terminal 58 and the electromagnetic powder brake 67 form a closed loop, the distance that the sliding joint 510 moves on the resistor 57 determines the maximum value of the resistor 57 connected in this loop. The magnitude of the current is small (all resistors 57 are connected in the initial state, and the current formed is extremely small, so the electromagnetic powder brake 67 will not have a deceleration effect on the drive wheel 65 in the initial state), thereby determining the magnitude of the current, and further determining the deceleration intensity of the electromagnetic powder brake 67 on the drive wheel 65. The electromagnetic powder brake 67 decelerates the drive wheel 65 on the shorter side path of the high-condensate oil pipeline 100, so that the equipment housing 1 will not tilt and remain parallel to the cross-section of the high-condensate oil pipeline 100, so that the distance meter 8 can measure the radius distance of the high-condensate oil pipeline 100 at each moment.

[0029] In the above process, when the difference in path distance between the left and right sides of the pipeline inner wall is greater (depending on the size of the curve), the tilt is more serious. Therefore, the greater the relative rotation of the center column 3 and the equipment housing 1, the greater the distance that the arc plate 51 pushes the abutment rod 52, and the greater the movement distance of the sliding joint 510 driven by the abutment rod 52, thereby reducing the resistance of the resistor 57 connected to the circuit, so that the current acting on the electromagnetic powder brake 67 is greater, and the speed limiting strength of the electromagnetic powder brake 67 on the drive wheel 65 is better, so that the drive wheel 65 can reduce the rotation speed faster, and the tilt problem of the equipment housing 1 can be solved faster.

[0030] To summarize, the current adjustment unit 5 can adjust the speed limiting strength of the electromagnetic powder brake 67 on the driving wheel 65 by adjusting the tilt degree of the device housing 1, the arc plate 51, the abutment rod 52 and the resistor 57, thereby adaptively controlling the speed of the driving wheel 65, so that the tilt problem of the device housing 1 is quickly resolved, and the rangefinder 8 can measure correct data.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, four driving units 6 are provided on the outer side of the device housing 1. The driving unit 6 includes a connecting seat 61, and a connecting plate 62 is detachably connected to the connecting seat 61. The end of the connecting plate 62 is fixedly connected to an end plate 63. A driving wheel 65 is installed on the end of the end plate 63 through a spring rod 64, and the driving wheel 65 is driven by a driving motor 66.

[0032] The connecting plate 62 is selectively replaced according to the current high-viscosity oil pipeline 100, so as to be able to match the radius of the current measured high-viscosity oil pipeline 100. When the radius of the high-viscosity oil pipeline 100 is too large, it can be matched by replacing a longer connecting plate 62.

[0033] The driving units 6 symmetrically arranged up and down in the equipment housing 1 are fixedly connected to the upper and lower ends of the connecting seat 61 and the central column 3, and the driving units 6 symmetrically arranged left and right in the equipment housing 1 are respectively fixedly connected to the left and right sides of the equipment housing 1 through the connecting seat 61. As Figure 7 shown, the driving wheels 65 in the two driving units 6 on the left and right are in contact with the left and right sides of the high-viscosity oil pipeline 100, and the driving wheels 65 of the driving units 6 symmetrically arranged up and down are in contact with the upper and lower sides of the high-viscosity oil pipeline 100.

[0034] In this embodiment, the driving motors 66 in the four driving units 6 are powered by the mobile power source 9. The driving motors 66 maintain the same rotational speed, drive the driving wheels 65 to rotate at the same speed, and the driving wheels 65 drive the equipment housing 1 to move uniformly in the high-viscosity oil pipeline 100.

[0035] As Figure 2 and Figure 8 shown, a ranging motor 7 is fixedly connected to one side of the equipment housing 1, and a rangefinder 8 is fixedly connected to the output shaft of the ranging motor 7.

[0036] In this embodiment, when the equipment housing 1 moves uniformly, the ranging motor 7 rotates at a high speed, and at the same time drives the rangefinder 8 to rotate at a high speed. The ranging line of the rangefinder 8 is as Figure 8 shown. The rangefinder 8 transmits the distance data measured at each moment to an external terminal (the measured distance data is the distance from the rangefinder 8 to the inner wall of the high-viscosity oil pipeline 100), and at the same time generates a line graph as Figure 9 shown with the moving distance of the driving wheel 65 (the moving distance of the driving wheel 65 can be obtained through data such as the rotational speed and driving time of the driving motor 66). Among them, R is the distance measured by the rangefinder 8, and L is the moving distance of the equipment housing 1. If the inner wall of the high-viscosity oil pipeline 100 is smooth and the radius of the high-viscosity oil pipeline 100 remains unchanged, then the distance measured by the rangefinder 8 should be the same, so a straight line is formed in the line graph. If the distance measured by the rangefinder 8 changes, for example, the inner wall of the high-viscosity oil pipeline 100 is corroded, forming concave or protruding corrosion scars, it will cause the distance measured by the rangefinder 8 to change, thus forming Figure 9 fluctuations in the straight line in, and the degree of corrosion can be judged by the size of the fluctuations. At the same time, the position of corrosion in the high-viscosity oil pipeline 100 can be judged by the L value corresponding to the position of the fluctuations in the straight line.

[0037] The working process is as follows: First, as Figure 7As shown, place the device inside the highly viscous oil pipeline 100 to be detected. It should be noted that when the device detects a straight-type highly viscous oil pipeline 100, since the inner wall lengths at the four positions of up, down, left, and right in the straight-type highly viscous oil pipeline 100 are the same, power is supplied to the drive motors 66 in the four drive units 6 by the mobile power source 9. The drive motors 66 maintain the same rotational speed, driving the drive wheels 65 to rotate at the same speed. The drive wheels 65 drive the device housing 1 to move uniformly in the highly viscous oil pipeline 100. Therefore, the device housing 1 is always moving at a uniform speed, and the cross-section of the device housing 1 and the highly viscous oil pipeline 100 always remains parallel. When the device housing 1 is moving at a uniform speed, the ranging motor 7 rotates at a high speed, and at the same time drives the rangefinder 8 to rotate at a high speed. The rangefinder 8 transmits the distance data measured at each moment to an external terminal, and at the same time generates a broken line graph as shown in Figure 9 If the inner wall of the highly viscous oil pipeline 100 is smooth and the radius of the highly viscous oil pipeline 100 remains unchanged, then the distances measured by the rangefinder 8 should be the same. Therefore, a straight line is formed in the broken line graph. If the distances measured by the rangefinder 8 change, for example, the inner wall of the highly viscous oil pipeline 100 is corroded, forming concave or protruding corrosion scars, it will cause the distances measured by the rangefinder 8 to change, thereby forming Figure 9 The fluctuations in the straight line in. The degree of corrosion can be judged by the size of the fluctuations, and at the same time, the position where the corrosion occurs in the highly viscous oil pipeline 100 can be judged by the L value corresponding to the fluctuation position in the straight line. During this process, as shown in Figure 9 When in a curved highly viscous oil pipeline 100, since the rotational speeds of the drive wheels 65 are the same, the inner wall length of one side of the left and right sides in the highly viscous oil pipeline 100 is shorter than that of the other side. And because the rotational speeds of the drive wheels 65 are the same, it causes the device housing 1 to be inclined as shown in Figure 9 . The device housing 1 will deflect relative to the central column 3, causing the device housing 1 to drive the rangefinder 8 to deflect, making the rangefinder 8 unable to measure an effective distance. At this time, when the device housing 1 and the central column 3 rotate relative to each other, the turntable 4 on the central column 3 drives the arc-shaped plate 51 to squeeze the abutting rod 52. The abutting rod 52 slides into the sleeve 53 and compresses the return spring 54. When the abutting rod 52 slides in, it drives the sliding joint 510 to move. The sliding joint 510 moves on the resistor 57. Because the mobile power source 9, the second connection terminal 59, the resistor 57, the first connection terminal 58, and the electromagnetic powder brake 67 form a closed circuit, the distance that the sliding joint 510 moves on the resistor 57 determines the size of the resistor 57 connected in this circuit, thereby determining the size of the current, and further determining the deceleration intensity of the electromagnetic powder brake 67 on the drive wheel 65. By decelerating the drive wheel 65 on the shorter side path in the highly viscous oil pipeline 100 through the electromagnetic powder brake 67, the device housing 1 will not be inclined and remains parallel to the cross-section of the highly viscous oil pipeline 100, so that the rangefinder 8 can measure the radius distance of the highly viscous oil pipeline 100 at each moment.

[0038] The foregoing 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, and the above-described embodiments and descriptions in the specification are only for illustrating 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 these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A high condensate oil pipeline anti-corrosion performance testing device, comprising a device housing (1), wherein a cavity (2) is provided in the device housing (1), and wherein: A central column (3) is rotatably connected in the cavity (2) via a bearing, and two current adjustment units (5) are symmetrically arranged on the central column (3); The current adjustment unit (5) comprises an arc plate (51), the arc plate (51) being arranged on one side of the central column (3), one side of the arc plate (51) being in contact with a movable abutting rod (52), a sliding joint (510) being arranged at the lower end of the abutting rod (52), a resistor (57) being in contact with the lower end of the sliding joint (510), an end of the resistor (57) being away from the arc plate (51) being connected to an electromagnetic powder brake (67) via a circuit, the electromagnetic powder brake (67) being fixedly connected to the shaft of the driving wheel (65), and when the central column (3) rotates, the arc plate (51) is driven to press the abutting rod (52), so that the abutting rod (52) drives the sliding joint (510) to adjust the size of the connected resistor (57), thereby controlling the input current of the electromagnetic powder brake (67) and adaptively adjusting the rotation speed of the driving wheel (65).

2. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 1, characterized in that: A rotating disk (4) is fixedly connected to the middle of the central column (3), and an arc-shaped plate (51) is fixedly connected to the rotating disk (4).

3. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 2, characterized in that: One end of the abutment rod (52) away from the arc-shaped plate (51) slides and extends into the sleeve (53); the sleeve (53) is fixedly connected to the side wall of the cavity (2); and the abutment rod (52) is fixedly connected to the sleeve (53) via a return spring (54).

4. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 3, characterized in that: The resistor (57) is fixedly connected to the side wall of the cavity (2), one end of the resistor (57) away from the rotating disk (4) is fixedly connected to a first terminal (58), and the sliding joint (510) is fixedly connected to a second terminal (59).

5. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 4, characterized in that: The first terminal (58) is connected to the electromagnetic powder brake (67) through an electric circuit, and the second terminal (59) is connected to the mobile power source (9) through an electric circuit, thereby forming a closed circuit of the mobile power source (9), the second terminal (59), the resistor (57), the first terminal (58) and the electromagnetic powder brake (67).

6. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 5, characterized in that: Four drive units (6) are provided on the outer side of the device housing (1). The drive units (6) include a connecting seat (61). A connecting plate (62) is detachably connected to the connecting seat (61). An end of the connecting plate (62) is fixedly connected to an end plate (63). A drive wheel (65) is installed at the end of the end plate (63) via a spring rod (64). The drive wheel (65) is driven by a drive motor (66).

7. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 6, characterized in that: The connecting plate (62) is selectively replaced according to the current high-condensate oil pipeline (100), so as to match the radius of the currently measured high-condensate oil pipeline (100).

8. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 7, characterized in that: The vertically symmetrical drive units (6) in the device housing (1) are fixedly connected to the upper and lower ends of the central column (3) via the connection base (61), and the left-right symmetrical drive units (6) in the device housing (1) are fixedly connected to the left and right sides of the device housing (1) via the connection base (61), respectively.

9. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 7, characterized in that: A distance measuring motor (7) is fixedly connected to one side of the device housing (1), and a distance meter (8) is fixedly connected to an output shaft of the distance measuring motor (7).

10. The high condensate oil pipeline anti-corrosion performance testing equipment as claimed in claim 1, characterized in that: A limit rod (11) is fixedly connected to the central column (3), and limit blocks (10) are provided on both sides of the limit rod (11). The limit blocks (10) are fixedly connected to the bottom of the cavity (2).

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