Pipe cleaner for oil and gas pipeline deformation detection

Abstract

The utility model provides a pipe cleaner for oil and gas pipeline deformation detection, which relates to the technical field of pipe cleaners and comprises a pipe cleaning carrier for cleaning a pipeline and a mounting seat mounted at the end of the pipe cleaning carrier, an odometer wheel and a deformation detection sensor are arranged on the mounting seat, and the rotating shaft direction of the odometer wheel is perpendicular to the axis direction of the pipe cleaning carrier. The walking track line of the odometer wheel is coplanar with the cleaning plane of the pipe cleaning carrier; the deformation detection sensor is positioned on the inner side of the wall surface of the pigging carrier along the radial direction of the pigging carrier; according to the pipe cleaner, the deformation detection sensor and the odometer wheel are arranged, so that the position of a pipeline deformation defect can be accurately positioned, and reference is provided for excavation and repair of the pipeline; moreover, the inner wall of the pipeline does not need to be contacted in the defect detection process of the deformation detection sensor, so that high-precision detection of the deformation of the pipeline can be realized, and the inner wall of the pipeline can be prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cleaning devices, in particular to a pipe cleaning device used for deformation detection of oil and gas pipelines. Background Art

[0002] With the long-term operation of long-distance oil and gas pipelines, wax will form on the inner wall of the pipeline, and dust particles and impurities will be deposited, which will reduce the flow area of ​​the pipeline, causing the actual transmission capacity of the pipeline to decrease, and even block the pipeline, seriously affecting the normal operation of the pipeline. At present, in production and operation, pigs are generally used to carry out regular cleaning operations to remove wax, deposited impurities and other impurities on the inner wall of the pipeline.

[0003] After long-term use, pipelines may deform (such as sinking inward or bulging outward) due to various reasons, which requires workers to repair them in time. After continuous research and development by staff, traditional pipe cleaners also have the function of detecting pipeline deformation. Traditional pipe cleaners are usually equipped with contact probe arm sensors or embedded cantilever beam force sensors. The contact probe arm sensor contacts the inner wall of the pipeline and is prone to scratching the inner wall of the pipeline. The embedded cantilever beam force sensor usually uses polyurethane foam as a carrier, and indirectly obtains the amount of pipeline deformation by recording the extrusion force on the polyurethane foam through the force sensor, and the detection accuracy is low.

[0004] Therefore, it is necessary to develop a new type of pipe cleaning device to improve the pipeline deformation detection capability. Utility Model Content

[0005] The utility model aims to provide a pipe cleaner for oil and gas pipeline deformation detection to solve the problems existing in the above-mentioned prior art, and can accurately locate the position of pipeline deformation defects to provide a reference for pipeline excavation and repair; and the defect detection process of the deformation detection sensor does not need to contact the inner wall of the pipeline, which can not only achieve high-precision detection of pipeline deformation, but also avoid scratching the inner wall of the pipeline.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] A pipe cleaner for deformation detection of oil and gas pipelines comprises a pipe cleaner carrier for cleaning the pipeline and a mounting seat mounted on the end of the pipe cleaner carrier, wherein an odometer wheel and a deformation detection sensor are arranged on the mounting seat, wherein the rotation axis direction of the odometer wheel is perpendicular to the axial direction of the pipe cleaner carrier, and the travel track line of the odometer wheel is coplanar with the cleaning plane of the pipe cleaner carrier; along the radial direction of the pipe cleaner carrier, the deformation detection sensor is located on the inner side of the wall surface of the pipe cleaner carrier.

[0008] Preferably, a plurality of the deformation detection sensors are circumferentially arranged on the mounting seat, and arrangement tracks of the plurality of deformation detection sensors are coaxial with the pipe cleaning carrier.

[0009] Preferably, two or more mileage wheels are arranged along the circumference of the mounting seat.

[0010] Preferably, it also includes a mileage wheel support arm, one end of which is hinged to the mounting seat via a hinge shaft, the axial direction of the hinge shaft is parallel to the axial direction of the rotating shaft of the mileage wheel, and the mounting seat is also provided with a driving part that drives the mileage wheel support arm to rotate around the hinge shaft; the mileage wheel is mounted on the other end of the mileage wheel support arm.

[0011] Preferably, the driving part is an elastic member, one end of the elastic member is connected to the mounting seat, and the other end of the elastic member is connected to the mileage wheel support arm.

[0012] Preferably, the elastic member is a torsion spring.

[0013] Preferably, a transmitter for transmitting low-frequency signals is also fixed on the mounting base.

[0014] Preferably, a data transmission module, a storage module and a power supply module are also fixed on the mounting base, and the data transmission module is used to transmit the mileage data collected by the mileage wheel and the ranging information data collected by the deformation detection sensor to the storage module for storage.

[0015] Preferably, a receiving cavity for receiving the storage module and the power module is provided in the cleaning carrier, and the storage module and the power module are arranged in the receiving cavity.

[0016] Preferably, a threaded mounting column is provided at the end of the cleaning carrier, a mounting hole is provided on the mounting seat, the threaded mounting column passes through the mounting hole, and is connected to the mounting seat by a nut.

[0017] Compared with the prior art, the utility model has the following technical effects:

[0018] The pipe cleaning device in the utility model can accurately locate the position of pipeline deformation defects by arranging deformation detection sensors and mileage wheels, thereby providing a reference for pipeline excavation and repair; moreover, the defect detection process of the deformation detection sensor does not need to contact the inner wall of the pipeline, which can not only realize high-precision detection of pipeline deformation, but also avoid scratching the inner wall of the pipeline.

[0019] In other technical solutions of the utility model, the following technical effects can also be achieved:

[0020] In the utility model, a transmitter for transmitting low-frequency signals is also fixed on the mounting seat. When the pipe cleaner is blocked inside the pipeline, the staff can determine the position of the low-frequency signal source (i.e., the transmitter) through the low-frequency signal receiver, and then quickly locate the position of the pipe cleaner, and quickly repair the blocking accident.

[0021] The material of the pipe cleaning carrier in the utility model is polyurethane foam, so that the pipe cleaning device has strong passability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of the pipe cleaning device in the utility model;

[0024] Figure 2 It is a side view of the pig;

[0025] Figure 3 It is a side cross-sectional schematic diagram of the pig in the pipeline;

[0026] Description of reference numerals:

[0027] 1. Pipe cleaning carrier; 2. Mounting seat; 3. Deformation detection sensor; 4. Odometer wheel; 5. Odometer wheel support arm; 6. Torsion spring; 7. Transmitter; 8. Data transmission module; 9. Storage module; 10. Power module; 11. Threaded mounting column; 12. Pipeline. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model aims to provide a pipe cleaner for oil and gas pipeline deformation detection to solve the problems existing in the above-mentioned prior art, and can accurately locate the position of pipeline deformation defects to provide a reference for pipeline excavation and repair; and the defect detection process of the deformation detection sensor does not need to contact the inner wall of the pipeline, which can not only achieve high-precision detection of pipeline deformation, but also avoid scratching the inner wall of the pipeline.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 to Figure 3As shown, this embodiment provides a pipe cleaner for deformation detection of oil and gas pipelines, including a pipe cleaner carrier 1 for cleaning a pipeline 12 and a mounting seat 2 installed at the end of the pipe cleaner carrier 1, a deformation detection sensor 3 is fixedly arranged on the mounting seat 2, and an odometer wheel 4 is rotatably arranged, the rotation axis direction of the odometer wheel 4 is perpendicular to the axial direction of the pipe cleaner carrier 1, and the walking track line of the odometer wheel 4 is coplanar with the cleaning plane of the pipe cleaner carrier 1; along the radial direction of the pipe cleaner carrier 1, the deformation detection sensor 3 is located on the inner side of the wall of the pipe cleaner carrier 1.

[0032] When in use, the pipe cleaner is placed in the pipe 12 to be cleaned. The diameter of the pipe cleaning carrier 1 is adapted to the inner diameter of the pipe 12, and can be close to the inner wall of the pipe 12 to clean the impurities adhering to the inner wall of the pipe 12. The mileage wheel 4 abuts against the inner wall of the pipe 12, and rotates along the moving cleaning direction of the pipe cleaning carrier 1 (i.e., the extension direction of the pipe 12), while recording the mileage; the principle of the mileage wheel 4 recording the mileage is well known to those skilled in the art, and this embodiment will not be elaborated on. The deformation detection sensor 3 can adopt a laser ranging sensor 3 or an electromagnetic ranging sensor 3. Based on the laser ranging principle or the electromagnetic ranging principle, the ranging information between the inner wall surface of the pipe 12 and the deformation detection sensor 3 in the radial direction can be detected. When a certain position on the inner wall of the pipe 12 has a defect (depression or protrusion), its corresponding ranging information will change relative to the ranging information of the position without the defect. After the cleaning of the pipe cleaner is completed, the staff can obtain the defect position of the pipeline 12 according to the mileage information recorded by the mileage wheel 4 and the distance information measured by the deformation detection sensor 3; the specific operation can be to use the mileage information recorded by the mileage wheel 4 as the horizontal coordinate and the distance information measured by the deformation detection sensor 3 as the vertical coordinate; the horizontal coordinate corresponding to the position where the distance information changes, that is, the defect position of the inner wall of the pipeline 12.

[0033] The distance measurement principles of the laser sensor and the deformation detection sensor 3 are well known to those skilled in the art, and are not described in detail in this embodiment.

[0034] Therefore, the pipe cleaner in this embodiment can accurately locate the position of the deformation defect of the pipeline 12 by setting the deformation detection sensor 3 and the mileage wheel 4, providing a reference for the excavation and repair of the pipeline 12; and the defect detection process of the deformation detection sensor 3 does not need to contact the inner wall of the pipeline 12, which can not only achieve high-precision detection of the deformation amount of the pipeline 12, but also avoid scratching the inner wall of the pipeline 12.

[0035] In this embodiment, a plurality of deformation detection sensors 3 are arranged circumferentially on the mounting seat 2, and the arrangement tracks of the plurality of deformation detection sensors 3 are coaxial with the pig carrier 1. The number of deformation detection sensors 3 is set as large as possible to ensure that defects can be detected at each circumferential position of the same mileage position of the inner wall of the pipeline 12.

[0036] In order to ensure the accuracy of mileage recording, in this embodiment, two or more mileage wheels 4 are evenly arranged along the circumference of the mounting seat 2 .

[0037] The pipe cleaner in this embodiment also includes a mileage wheel support arm 5, one end of which is hinged on the mounting seat 2 through a hinge shaft, the axial direction of the hinge shaft is parallel to the axial direction of the rotating shaft of the mileage wheel 4, and a driving part for driving the mileage wheel support arm 5 to rotate around the hinge shaft is also provided on the mounting seat 2; the mileage wheel 4 is installed on the other end of the mileage wheel support arm 5. By providing the driving part, the mileage wheel support arm 5 can be driven by the driving part to rotate, so as to ensure that the mileage wheel 4 abuts against the inner wall of the pipeline 12, and avoid the situation that the mileage wheel 4 cannot abut against the inner wall of the pipeline 12, resulting in inaccurate mileage recording. The driving part here can be an electric drive mechanism, such as a rotary motor, and the output shaft of the rotary motor is connected to the hinge shaft of the mileage wheel support arm 5. When not in use, the rotary motor is activated to retract the mileage wheel support arm 5 inward; when it is placed in the pipeline 12 for cleaning, the rotary motor is activated to drive the mileage wheel support arm 5 to expand outward, so that the mileage wheel 4 is close to the inner wall of the pipeline 12.

[0038] Furthermore, in this embodiment, the driving part is an elastic member, specifically a torsion spring 6, which can be sleeved on the hinge shaft between the mileage wheel support arm 5 and the mounting seat 2, one end of which is connected to the mounting seat 2, and the other end is connected to the mileage wheel support arm 5, exerting an outward expansion force on the mileage wheel support arm 5. When not in use, the mileage wheel support arm 5 is expanded outward under the action of the torsion spring 6, and the expansion radius is greater than the radius of the pig carrier 1, such as Figure 2 As shown; when the odometer wheel 4 is placed in the pipeline 12 for cleaning, the torsion spring 6 is twisted, and the odometer wheel support arm 5 is retracted inward to a certain extent, but under the elastic force of the torsion spring 6, the odometer wheel 4 can still be in contact with the inner wall of the pipeline 12. At the same time, when the odometer wheel 4 passes through the defective position, the torsion spring 6 can be twisted forward or reversely to improve the passability of the odometer wheel 4; and the odometer wheel 4 is still in close contact with the inner wall of the pipeline 12 during the process of passing the defective position, so that the odometer wheel 4 can be recorded uninterruptedly, which improves the accuracy of the odometer recording.

[0039] In order to further improve the passability of the pig, the pig carrier 1 in this embodiment is made of polyurethane foam.

[0040] Furthermore, in this embodiment, a transmitter 7 for transmitting low-frequency signals is also fixed on the mounting base 2. The pipe cleaner transmits low-frequency signals through the transmitter 7 during the cleaning process. When the pipe cleaner is blocked inside the pipeline 12, the staff can determine the position of the low-frequency signal source (i.e., the transmitter 7) through the low-frequency signal receiver, and then quickly locate the position of the pipe cleaner, and quickly repair the blocking accident.

[0041] Furthermore, in this embodiment, a data transmission module 8, a storage module 9 and a power module 10 are also fixed on the mounting base 2. The power module 10 is used to supply power to the data transmission module 8, the storage module 9, the mileage wheel 4, the deformation detection sensor 3, the transmitter 7 and other electrical components. The data transmission module 8 is used to filter and amplify the mileage data collected by the mileage wheel 4 and the distance measurement information data collected by the deformation detection sensor 3 in real time, and transmit them, and acts as a bridge between the mileage data, the distance measurement information data and the storage module 9. The storage module 9 is used to store the mileage data and distance measurement information data collected by the data transmission module 8, so that the staff can export and analyze the mileage data and distance measurement information data after the cleaning operation is completed.

[0042] like Figure 3 As shown, a storage chamber for accommodating a storage module 9 and a power module 10 is provided in the pig carrier 1. The storage module 9 and the power module 10 are arranged in the accommodating chamber to protect the storage module 9 and the power module 10. A support frame can be arranged around the accommodating chamber to further improve the protection effect. If the data transmission module 8 is placed outside the accommodating chamber, it can also be protected by an external box body.

[0043] Furthermore, in this embodiment, a plurality of threaded mounting columns 11 are provided at the end of the pig carrier 1, and the axial direction of the threaded mounting columns 11 is parallel to the axial direction of the pig carrier 1. A plurality of mounting holes are provided on the mounting seat 2, and the distribution track of the mounting holes is the same as the distribution track of the threaded mounting columns 11; the threaded mounting columns 11 pass through the mounting holes and are connected to the mounting seat 2 by nuts.

[0044] Adaptive changes made according to actual needs are all within the protection scope of this utility model.

[0045] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A pipe cleaning device for oil and gas pipeline deformation detection, characterized in that: The invention comprises a cleaning carrier for cleaning a pipeline and a mounting seat mounted on the end of the cleaning carrier, wherein a mileage wheel and a deformation detection sensor are arranged on the mounting seat, the rotation axis direction of the mileage wheel is perpendicular to the axial direction of the cleaning carrier, the walking track line of the mileage wheel is coplanar with the cleaning plane of the cleaning carrier; along the radial direction of the cleaning carrier, the deformation detection sensor is located on the inner side of the wall surface of the cleaning carrier.

2. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: A plurality of the deformation detection sensors are circumferentially arranged on the mounting seat, and the arrangement tracks of the plurality of the deformation detection sensors are coaxial with the pig carrier.

3. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: Two or more mileage wheels are arranged along the circumference of the mounting seat.

4. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: It also includes a mileage wheel support arm, one end of which is hinged to the mounting seat via a hinge shaft, the axial direction of the hinge shaft is parallel to the axial direction of the rotating shaft of the mileage wheel, and the mounting seat is also provided with a driving part that drives the mileage wheel support arm to rotate around the hinge shaft; the mileage wheel is mounted on the other end of the mileage wheel support arm.

5. The pig for oil and gas pipeline deformation detection according to claim 4, characterized in that: The driving part is an elastic member, one end of which is connected to the mounting seat, and the other end of which is connected to the mileage wheel support arm.

6. The pig for oil and gas pipeline deformation detection according to claim 5, characterized in that: The elastic member is a torsion spring.

7. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: A transmitter for transmitting low-frequency signals is also fixed on the mounting seat.

8. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: A data transmission module, a storage module and a power supply module are also fixed on the mounting seat. The data transmission module is used to transmit the mileage data collected by the mileage wheel and the ranging information data collected by the deformation detection sensor to the storage module for storage; a accommodating cavity for accommodating the storage module and the power supply module is provided in the cleaning carrier, and the storage module and the power supply module are arranged in the accommodating cavity.

9. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: A threaded mounting column is arranged at the end of the cleaning carrier, a mounting hole is arranged on the mounting seat, the threaded mounting column passes through the mounting hole, and is connected to the mounting seat by a nut.

10. The pig for oil and gas pipeline deformation detection according to claim 1, characterized in that: The material of the pipe cleaning carrier is polyurethane foam.

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