Internal corrosion detection device for oil pipeline

Abstract

The utility model provides a corrosion detection device in an oil pipeline, and belongs to the technical field of oil pipeline detection. The oil pipeline internal corrosion detection device comprises a supporting structure and a mobile detection structure. The supporting structure comprises a cavity, a telescopic piece and an elastic piece, the telescopic piece is fixed to the outer portion of the cavity in the circumferential direction, and the elastic piece is installed in the telescopic piece; the movable detection structure comprises a fixing frame, a driving part and an annular plate, the fixing frame is fixed to the telescopic part, a driving wheel and a driven wheel are rotationally connected to the fixing frame, the annular plate is fixed to the telescopic part, and detection parts are fixed to the surface of the annular plate in the circumferential direction. In the use process, the detection device can be conveniently dragged to move, and then the inner surface of the oil pipeline is detected in the moving process, so that the detection is simpler and more convenient, meanwhile, the detection effect can be improved, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline inspection technology, and more specifically, to an internal corrosion detection device for oil pipelines. Background Technology

[0002] An oil pipeline consists of oil pipes and their accessories, and is equipped with corresponding oil pump units according to the needs of the technological process. It is designed and installed as a complete pipeline system to complete the tasks of oil unloading and transportation. Oil pipelines are generally made of steel pipes, connected by welding and flanges to form long pipelines, and valves are used for opening and closing control and flow regulation. Oil pipelines mainly employ isothermal transportation, heated transportation, and sequential transportation processes. Pipeline corrosion and corrosion prevention are crucial aspects of pipeline maintenance.

[0003] Currently, oil pipelines are an important component of oil transportation systems. During long-term use, corrosion inevitably occurs inside oil pipelines. If this corrosion is not detected, it will affect the oil pipeline over time. Moreover, existing detection devices are very inconvenient for inspecting the inside of oil pipelines. Therefore, it is necessary to propose an internal corrosion detection device for oil pipelines to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a corrosion detection device for oil pipelines, which aims to improve the problem that corrosion inevitably occurs inside oil pipelines during long-term use, and that failure to detect it will affect the oil pipeline over a long period of time. Moreover, existing detection devices are very inconvenient for detecting the inside of oil pipelines.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a corrosion detection device for oil pipelines, including a support structure and a movable detection structure.

[0007] The supporting structure includes a cavity, a telescopic component, and an elastic component. The telescopic component is circumferentially fixed to the outside of the cavity, and the elastic component is installed in the telescopic component. The moving detection structure includes a fixed frame, a driving component, and an annular plate. The fixed frame is fixed to the telescopic component, and a driving wheel and a driven wheel are rotatably connected to the fixed frame. An annular groove is formed on the surface of the driving wheel, and a toothed groove is formed inside the annular groove. The driving component is installed between the fixed frame and the toothed groove. The annular plate is fixed to the telescopic component, and a detection component is circumferentially fixed on the surface of the annular plate.

[0008] In one embodiment of this utility model, a storage battery is installed inside the cavity, and a handle is fixed to one side of the cavity.

[0009] In one embodiment of this utility model, the telescopic member includes a support cylinder and a movable column. One end of the support cylinder is fixed to the surface of the cavity, the movable column is slidably connected to the inside of the support cylinder, a groove is provided inside one end of the movable column, a connecting plate is fixed to the other end of the movable column, the connecting plate is fixed to the fixing frame, and the annular plate is fixed to the support cylinder.

[0010] In one embodiment of this utility model, the support cylinder has grooves on both sides, and the movable column has a slider that matches the groove fixed on its surface. The slider is slidably connected inside the groove.

[0011] In one embodiment of this utility model, the elastic element includes a spring, and a first connecting post and a second connecting post are sleeved and fixed at both ends of the spring. The first connecting post is fixed to the inside of the support cylinder, and the second connecting post is fixed to the inside of the groove.

[0012] In one embodiment of this utility model, the driving component includes a servo motor and a transmission chain. The servo motor is mounted on the fixed frame, and a gear is keyed to the end of the output shaft of the servo motor. The gear and the tooth groove are connected by transmission chain.

[0013] In one embodiment of this utility model, the fixing frame has a through hole that matches the transmission chain, and the transmission chain passes through the through hole.

[0014] In one embodiment of this utility model, the detection component includes a fixing plate fixed to the annular plate, and a magnetic flux leakage sensor and an ultrasonic sensor are mounted on the fixing plate.

[0015] Compared with existing technologies, the corrosion detection device for oil pipelines designed in this invention allows for the installation of the driving and driven wheels inside the oil pipeline using the elasticity of a spring and a telescopic component. An external device then starts a servo motor, which drives a gear to rotate. During this rotation, a transmission chain drives the driving wheel, enabling the detection device to move back and forth inside the pipeline. Simultaneously, a magnetic flux leakage sensor and an ultrasonic sensor detect the inner surface of the pipeline, and the results are observed through external equipment. This design facilitates easy traction and movement of the detection device, allowing for continuous detection of the pipeline's inner surface. This simplifies the detection process, improves detection efficiency, and enhances usability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a first-view structural schematic diagram of the corrosion detection device inside an oil pipeline provided in this embodiment of the utility model;

[0018] Figure 2 A second-view structural schematic diagram of the corrosion detection device inside an oil pipeline provided for an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the cross-sectional structure of the expansion joint of the corrosion detection device for oil pipelines provided in this embodiment of the utility model.

[0020] Figure 4 A partially exploded structural diagram of the corrosion detection device inside an oil pipeline provided in this embodiment of the utility model.

[0021] In the diagram: 100-Support structure; 110-Cavity; 111-Grip; 120-Telescopic component; 121-Support cylinder; 1211-Slide groove; 122-Moving column; 1221-Slider; 123-Groove; 124-Connecting plate; 130-Elastic component; 131-Spring; 132-First connecting column; 133-Second connecting column; 200-Moving detection structure; 210-Fixed frame; 211-Driving wheel; 212-Annular groove; 213-Driven wheel; 214-Through hole; 220-Driving component; 221-Servo motor; 222-Gear; 223-Transmission chain; 230-Annular plate; 240-Detection component; 241-Fixed plate; 242-Fluorescence sensor; 243-Ultrasonic sensor. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0023] Please see Figures 1-4This utility model provides a technical solution: a corrosion detection device for oil pipelines, including a support structure 100 and a movable detection structure 200.

[0024] Please see Figures 1-3 The support structure 100 includes a cavity 110, a telescopic member 120, and an elastic member 130. The telescopic member 120 is circumferentially fixed to the outside of the cavity 110, and the elastic member 130 is installed in the telescopic member 120.

[0025] The cavity 110 is equipped with a battery, and a handle 111 is fixed on one side of the cavity 110. The battery here can provide power to the servo motor 221, the magnetic leakage sensor 242 and the ultrasonic sensor 243. The handle 111 can be easily held and thus made easy to carry.

[0026] The telescopic component 120 includes a support cylinder 121 and a movable column 122. One end of the support cylinder 121 is fixed to the surface of the cavity 110. The movable column 122 is slidably connected to the inside of the support cylinder 121. A groove 123 is formed inside one end of the movable column 122. A connecting plate 124 is fixed to the other end of the movable column 122. The connecting plate 124 is fixed to the fixing frame 210. An annular plate 230 is fixed to the support cylinder 121. Slide grooves 1211 are formed on both sides of the support cylinder 121. A slider 1221 matching the slide groove 1211 is fixed to the surface of the movable column 122. The slider 1221 is slidably connected to the slide groove 1211. Internally, the elastic element 130 includes a spring 131. The two ends of the spring 131 are sleeved and fixed with a first connecting post 132 and a second connecting post 133. The first connecting post 132 is fixed to the inside of the support cylinder 121, and the second connecting post 133 is fixed to the inside of the groove 123. Here, the slider 1221 and the groove 1211 can prevent the movable post 122 from disengaging from the support cylinder 121, thus affecting the use. At the same time, the elasticity of the spring 131 can make the drive wheel 211 adapt to oil pipelines of different diameters, so that the drive wheel 211 and the driven wheel 213 can fit against the inner wall of the oil pipeline, improving the flexibility of use.

[0027] Please see Figures 1-4 The mobile detection structure 200 includes a fixed frame 210, a driving member 220, and an annular plate 230. The fixed frame 210 is fixed to the telescopic member 120. A driving wheel 211 and a driven wheel 213 are rotatably connected to the fixed frame 210. An annular groove 212 is formed on the surface of the driving wheel 211, and a toothed groove is formed inside the annular groove 212. The driving member 220 is installed between the fixed frame 210 and the toothed groove. The annular plate 230 is fixed on the telescopic member 120, and a detection member 240 is circumferentially fixed on the surface of the annular plate 230.

[0028] The drive unit 220 includes a servo motor 221 and a transmission chain 223. The servo motor 221 is mounted on the fixed frame 210. A gear 222 is keyed to the end of the output shaft of the servo motor 221. The gear 222 and the tooth groove are connected by transmission chain 223. A wireless remote controller is also electrically connected to the servo motor 221, allowing the servo motor 221 to be started and stopped remotely via an APP. Here, the servo motor 221 drives the drive wheel 211 to rotate through the gear 222 and transmission chain 223, thus facilitating the movement of the detection device inside the oil pipeline. The fixed frame 210 has a through hole 214 that matches the transmission chain 223, and the transmission chain 223 passes through the through hole 214. The detection component 240 includes a fixing plate 241 and an annular plate 230. A magnetic flux leakage sensor 242 and an ultrasonic sensor 243 are installed on the fixing plate 241. A circuit board with an integrated wireless module is also installed inside the cavity 110 for connecting the magnetic flux leakage sensor 242 and the ultrasonic sensor 243 to external devices, thereby facilitating the recording and external observation of the corroded parts.

[0029] Specifically, the working principle of the corrosion detection device inside the oil pipeline is as follows: During use, the elasticity of the spring 131, in conjunction with the telescopic component 120, allows the drive wheel 211 and driven wheel 213 to be installed inside the oil pipeline. Then, an external device starts the servo motor 221, which drives the gear 222 to rotate. During the rotation of the gear 222, the transmission chain 223 drives the drive wheel 211 to rotate, allowing the detection device to move back and forth inside the oil pipeline. Simultaneously, the magnetic flux leakage sensor 242 and the ultrasonic sensor 243 detect the inner surface of the oil pipeline, and the results are observed through external equipment. This allows for convenient traction and movement of the detection device during use, enabling the detection of the inner surface of the oil pipeline. This simplifies and improves the detection effect, making the device more user-friendly.

[0030] It should be noted that the specific models and specifications of the servo motor 221, the leakage magnetic field sensor 242, and the ultrasonic sensor 243 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0031] The power supply and operating principle of the servo motor 221, the leakage magnetic field sensor 242, and the ultrasonic sensor 243 are clear to those skilled in the art and will not be described in detail here.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrosion detection device for an oil pipeline, comprising a support structure (100) and a movable detection structure (200) mounted on the support structure (100), characterized in that, The support structure (100) includes a cavity (110), a telescopic member (120), and an elastic member (130). The telescopic member (120) is circumferentially fixed to the outside of the cavity (110), and the elastic member (130) is installed in the telescopic member (120). The mobile detection structure (200) includes a fixed frame (210), a driving member (220), and an annular plate (230). The fixed frame (210) is fixed to the telescopic member (120). A driving wheel (211) and a driven wheel (213) are rotatably connected on the fixed frame (210). An annular groove (212) is formed on the surface of the driving wheel (211). A toothed groove is formed inside the annular groove (212). The driving member (220) is installed between the fixed frame (210) and the toothed groove. The annular plate (230) is fixed on the telescopic member (120). A detection member (240) is circumferentially fixed on the surface of the annular plate (230).

2. The corrosion detection device for oil pipelines according to claim 1, characterized in that, A battery is installed inside the cavity (110), and a handle (111) is fixed to one side of the cavity (110).

3. The corrosion detection device for oil pipelines according to claim 1, characterized in that, The telescopic component (120) includes a support cylinder (121) and a movable column (122). One end of the support cylinder (121) is fixed to the surface of the cavity (110). The movable column (122) is slidably connected inside the support cylinder (121). A groove (123) is provided inside one end of the movable column (122). A connecting plate (124) is fixed to the other end of the movable column (122). The connecting plate (124) is fixed to the fixing frame (210). The annular plate (230) is fixed to the support cylinder (121).

4. The corrosion detection device for oil pipelines according to claim 3, characterized in that, The support cylinder (121) has grooves (1211) on both sides, and the surface of the movable column (122) is fixed with a slider (1221) that matches the groove (1211). The slider (1221) is slidably connected inside the groove (1211).

5. The corrosion detection device for oil pipelines according to claim 3, characterized in that, The elastic element (130) includes a spring (131), and a first connecting post (132) and a second connecting post (133) are sleeved and fixed at both ends of the spring (131). The first connecting post (132) is fixed inside the support cylinder (121), and the second connecting post (133) is fixed inside the groove (123).

6. The corrosion detection device for oil pipelines according to claim 1, characterized in that, The drive unit (220) includes a servo motor (221) and a transmission chain (223). The servo motor (221) is mounted on the fixed frame (210). A gear (222) is keyed to the end of the output shaft of the servo motor (221). The gear (222) and the tooth groove are connected by transmission through the transmission chain (223).

7. The corrosion detection device for oil pipelines according to claim 6, characterized in that, The fixing frame (210) has a through hole (214) that matches the transmission chain (223), and the transmission chain (223) passes through the through hole (214).

8. The corrosion detection device for oil pipelines according to claim 1, characterized in that, The detection component (240) includes a fixing plate (241) fixed to the annular plate (230), and a magnetic flux leakage sensor (242) and an ultrasonic sensor (243) are installed on the fixing plate (241).

Images