A corrosion detection probe for oil and gas pipelines

Abstract

The utility model discloses an oil and gas pipeline corrosion detection probe relates to oil and gas pipeline detection related technical field, the utility model discloses a filling block, fixed cylinder, installation ring and mounting block are provided, and the lower part of the periphery of filling block is fixed with fixed cylinder, and the top of fixed cylinder is fixed with transparent ring, and the upper part of the periphery of filling block is equipped with annular groove, and the installation ring is fixed in annular groove, and the top of filling block is fixed with mounting block, and the periphery of mounting block is annular array fixed with protection lens, and every protection lens is fixed with miniature shooting head in the one end of mounting block axle line, and miniature shooting head is fixed in mounting block, and the top of mounting block is fixed with protection head. The utility model discloses a filling block, fixed cylinder, installation ring and mounting block are set up, and the problem that the oil and gas pipeline corrosion detection probe shoots the situation in pipeline is not comprehensive enough, and the problem that the shooting inner wall situation of pipeline is not clear enough because of the lack of light.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil and gas pipeline inspection, and in particular relates to an oil and gas pipeline corrosion detection probe. Background Technology

[0002] Corrosion detection probes for oil and gas pipelines are core tools for ensuring the safe operation of pipelines, and their technologies are diverse and each has its own characteristics. Ultrasonic probes measure wall thickness using high-frequency sound waves, offering high accuracy and being suitable for detecting corrosion inside and outside metal pipelines, but they require a coupling agent. Magnetic flux leakage probes use changes in magnetic fields to identify corrosion defects in ferromagnetic pipelines, suitable for large-area inspections but with lower efficiency. Eddy current probes are sensitive to surface defects in conductive materials, making them particularly suitable for small-diameter pipelines. However, corrosion detection probes for oil and gas pipelines still have the following drawbacks in practical use: In actual inspection work, corrosion detection probes for oil and gas pipelines can directly use the end-effector to take pictures, which can also be used for detection. However, during the imaging process, different locations on the pipeline may be missed, affecting the accuracy of the detection. Secondly, during the inspection of the inside of the pipeline, a probe was used to directly detect the condition inside the pipeline. However, the pipeline was in darkness during the inspection, and the image captured by the camera was not clear enough of the condition of the inner wall of the pipeline. Utility Model Content

[0003] The purpose of this utility model is to provide a corrosion detection probe for oil and gas pipelines. By setting up a filling block, a fixing cylinder, a mounting ring, and a mounting block, it solves the problems that the corrosion detection probe for oil and gas pipelines cannot fully capture the inside of the pipeline, and that the images of the pipeline inner wall are not clear due to the lack of light.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a corrosion detection probe for oil and gas pipelines, comprising a filling block, a fixing cylinder, a mounting ring, and a mounting block. The fixing cylinder is fixed to the lower periphery of the filling block, and a transparent ring is fixed to the top of the fixing cylinder. An annular groove is formed on the upper periphery of the filling block, and the mounting ring is fixed within the annular groove. The mounting block is fixed to the top of the filling block, and protective lenses are fixed in a circular array around the periphery of the mounting block. A miniature imaging head is fixed to one end of each protective lens near the axis of the mounting block. The miniature imaging head is fixed inside the mounting block, and a protective head is fixed to the top of the mounting block. During operation, the mounting ring is fixed to the filling block, and the connecting wire and common conduit are fixed within the filling block. The transparent ring is fixed to the fixing cylinder, and light from an annular light strip is transmitted through the transparent ring. The annular light strip is mounted on the filling block via the mounting ring, and the miniature imaging head is fixed within the mounting block.

[0005] Furthermore, the top of the filling block has a vertically penetrating fixing hole in a ring array, and the bottom of the filling block in the annular groove has a vertically penetrating fixing hole. The top of the filling block has a ring of fixing holes for fixing the common pipeline, and the bottom of the annular groove has fixing holes for threading the connecting wire. The two respectively realize the separate layout of the power / signal transmission line and the lighting line, ensuring that the lines are connected in an orderly manner and do not interfere with each other.

[0006] Furthermore, the transparent ring is disposed on the outside of the annular groove, and a connecting ring is fixed to the top of the transparent ring. The top of the connecting ring is fixed to the bottom of the mounting block. The transparent ring is rigidly connected to the mounting block through the connecting ring. Its external design isolates the annular groove from the lighting system, ensuring that the light from the light strip is projected onto the pipe through the transparent ring, while avoiding the installation structure inside the annular groove from affecting the light transmission effect.

[0007] Furthermore, three equally spaced annular light strips are fixed around the periphery of the mounting ring, and connecting wires are symmetrically fixed at the bottom of the mounting ring. The connecting wires are electrically connected to the three annular light strips. The mounting ring integrates three sets of evenly distributed annular light strips, which are powered uniformly through the symmetrical connecting wires at the bottom. The equidistant layout achieves no dead angle lighting inside the pipeline, and the symmetrical wiring design improves the stability of the power supply and ensures that the light source evenly covers the detection area.

[0008] Furthermore, a common conduit is fixed to the end of the miniature camera head away from the protective lens. The common conduit is electrically connected to the miniature camera head. The common conduit is L-shaped, and the upper part of the vertical section of the common conduit is fixed inside the lower part of the mounting block. The miniature camera head achieves bidirectional transmission through the L-shaped common conduit: the horizontal section connects to the camera head body to transmit power and signals, and the vertical section passes through the mounting block and the filler block to form a concealed wiring. This structure protects the cable and optimizes the utilization of the probe's internal space.

[0009] Furthermore, the connecting wire is correspondingly fixed inside the second fixing hole and extends out of the second fixing hole. The lower part of the vertical section of the common conduit is fixed inside the first fixing hole in the filling block and extends out. The connecting wire and the common conduit respectively pass through the second fixing hole and the first fixing hole and extend to the outside, forming a modular line management system. The common conduit integrates power supply and signal lines to realize the dual functions of power supply and data feedback. The connecting wire is dedicated to powering the lighting system.

[0010] This utility model has the following beneficial effects: This invention solves the problem of insufficient imaging of the inside of oil and gas pipeline corrosion detection probes by setting an installation block. When the probe is inserted into the corresponding pipeline, the inner wall of the pipeline is illuminated after the ring light strip is turned on. After the inner wall of the pipeline is illuminated, the miniature imaging head opens and images of corrosion in various directions of the pipeline are captured to determine the condition of the pipeline. At the same time, a protective lens protects the miniature imaging head to prevent damage, making the imaging of the inside of the oil and gas pipeline corrosion detection probe more comprehensive.

[0011] This invention solves the problem of unclear images of the inner wall of pipes due to lack of light by setting up a filling block, a fixing cylinder, a mounting ring, and a mounting block. When the entire probe is placed inside the pipe, it is necessary to take pictures of the inside of the pipe. At this time, power is supplied by connecting wires, and the ring light strip on the mounting ring is turned on. After the ring light strip is turned on, the light emitted by the ring light strip is transmitted into the pipe through the transparent ring at the top of the fixing cylinder, illuminating the dark inner wall of the pipe. This allows the miniature imaging head to take pictures and inspect the inner wall of the pipe during operation. At the same time, the transparent ring prevents corrosive fluids inside the pipe from damaging the ring light strip, ensuring good supplementary lighting inside the pipe during inspection and guaranteeing clear images. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional view of the partially cut-open structure of a corrosion detection probe for oil and gas pipelines. Figure 2 This is a 3D structural diagram of the infill block. Figure 3 This is a three-dimensional structural diagram of the fixed cylinder. Figure 4 This is a three-dimensional structural diagram of the mounting ring. Figure 5 This is a three-dimensional view of the structure after the mounting block has been cut open. Figure 6 This is a three-dimensional diagram of the assembly structure of a corrosion detection probe for oil and gas pipelines.

[0014] Figure label: 1. Filler block; 101. Fixing hole one; 102. Annular groove; 103. Fixing hole two; 2. Fixing cylinder; 201. Transparent ring; 202. Connecting ring; 3. Mounting ring; 301. Annular light strip; 302. Connecting wire; 4. Mounting block; 401. Protective head; 402. Miniature camera head; 403. Protective lens; 404. Common conduit. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0016] Please see Figure 1-5 This utility model is a corrosion detection probe for oil and gas pipelines, including a filling block 1, a fixing cylinder 2, a mounting ring 3, and a mounting block 4. The fixing cylinder 2 is fixed to the lower periphery of the filling block 1. During operation, the common pipeline 404 and the connecting wire 302 are fixed within the filling block 1. An annular light strip 301 is fixed within the mounting ring 3. A transparent ring 201 is fixed to the top of the fixing cylinder 2, allowing the light emitted by the annular light strip 301 to pass through into the pipeline. An annular groove 102 is formed on the upper periphery of the filling block 1, through which the mounting ring 3 is fixed. The mounting ring 3 is fixed within the annular groove 102, and the mounting ring 3 fixes the annular light strip 301 to it, thus detecting corrosion in the pipeline. For illumination, a mounting block 4 is fixed to the top of the filling block 1. The mounting block 4 holds the miniature camera head 402. Protective lenses 403 are fixed in a ring array around the periphery of the mounting block 4. A miniature camera head 402 is fixed to one end of each protective lens 403 near the axis of the mounting block 4. The miniature camera head 402 is fixed inside the mounting block 4 and protected by the protective lenses 403. The miniature camera head 402 is used to take pictures of the situation inside the pipe. A protective head 401 is fixed to the top of the mounting block 4. The top of the protective head 401 is rounded to facilitate the overall movement of the probe. The protective head 401 is made of polyurethane wear-resistant layer to increase wear resistance.

[0017] Specifically, the top of the filler block 1 has a vertically penetrating fixing hole 101 in a ring array, and the bottom of the filler block 1 in the annular groove 102 has a vertically penetrating fixing hole 103. The filler block 1 fixes the common pipeline 404 through the fixing hole 101 and fixes the connecting wire 302 through the fixing hole 103.

[0018] Furthermore, a transparent ring 201 is disposed on the outside of the annular groove 102, and a connecting ring 202 is fixed to the top of the transparent ring 201. The top of the connecting ring 202 is fixed to the bottom of the mounting block 4. The transparent ring 201 is disposed on the outside of the annular groove 102, and the connecting ring 202 fixes the transparent ring 201 to the mounting block 4.

[0019] Furthermore, three equally spaced annular light strips 301 are fixed around the periphery of the mounting ring 3, and connecting wires 302 are symmetrically fixed at the bottom of the mounting ring 3. The connecting wires 302 are electrically connected to the three annular light strips 301. The mounting ring 3 emits light that illuminates the inside of the pipe through the annular light strips 301 powered by the connecting wires 302, so that the miniature camera head 402 can take pictures of the inside of the pipe.

[0020] The operation process of this embodiment is as follows: During operation, after the entire probe is placed inside the pipe, it is necessary to take pictures of the inside of the pipe. At this time, power is supplied through the connecting wire 302 to turn on the ring light strip 301 on the mounting ring 3. After the ring light strip 301 is turned on, the light emitted by the ring light strip 301 is transmitted through the transparent ring 201 at the top of the fixed cylinder 2 to the inside of the pipe, illuminating the dark inner wall of the pipe. This allows the miniature imaging head 402 to take pictures and detect the inner wall of the pipe during operation. At the same time, the transparent ring 201 prevents the corrosive fluid inside the pipe from damaging the ring light strip 301. Specific Implementation Example 2

[0021] Please see Figure 1 , 2 4, 5. Based on the specific embodiment one, a common pipeline 404 is fixed to the end of the miniature camera head 402 away from the protective lens 403. The common pipeline 404 is electrically connected to the miniature camera head 402. The common pipeline 404 is L-shaped and the upper part of the vertical part of the common pipeline 404 is fixed to the lower part of the mounting block 4. The miniature camera head 402 transmits electrical energy and signals through the common pipeline 404. After being illuminated on the inner wall of the pipeline, the miniature camera head 402 takes pictures of the inside of the pipeline.

[0022] Specifically, the connecting wire 302 is fixed through and through the fixing hole 103 and extends out of the fixing hole 103. The lower part of the vertical section of the common conduit 404 is fixed through and through the fixing hole 101 in the filling block 1 and extends out. The common conduit 404 contains power lines and signal lines to transmit power and signals. During operation, the wiring, mounting base and other structures of the probe are electrically connected to the common conduit 404 and the connecting wire 302, which can supply power to the ring light strip 301 and transmit power and signals to the miniature camera head 402 through the common conduit 404.

[0023] The operation process of this embodiment is as follows: During operation, when the probe is inserted into the corresponding pipeline, the inner wall of the pipeline is illuminated after the ring light strip 301 is turned on. After the inner wall of the pipeline is illuminated, the miniature camera head 402 is turned on. After the miniature camera head 402 is turned on, the corrosion of the pipeline in various directions is photographed by the miniature camera head 402 to determine the condition of the pipeline. At the same time, the miniature camera head 402 is protected by the protective lens 403 to prevent damage to the miniature camera head 402.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A corrosion detection probe for oil and gas pipelines, comprising a filling block (1), a fixing cylinder (2), a mounting ring (3), and a mounting block (4), characterized in that: A fixing cylinder (2) is fixed to the lower periphery of the filling block (1), and a transparent ring (201) is fixed to the top of the fixing cylinder (2). An annular groove (102) is opened on the upper periphery of the filling block (1), and an mounting ring (3) is fixed in the annular groove (102). A mounting block (4) is fixed to the top of the filling block (1). Protective lenses (403) are fixed in an annular array on the periphery of the mounting block (4). A miniature camera head (402) is fixed to one end of each protective lens (403) near the axis of the mounting block (4). The miniature camera head (402) is fixed inside the mounting block (4), and a protective head (401) is fixed to the top of the mounting block (4).

2. The corrosion detection probe for oil and gas pipelines according to claim 1, characterized in that: The top of the filling block (1) is vertically connected in a ring array with a fixing hole 1 (101), and the bottom of the ring groove (102) is vertically connected with a fixing hole 2 (103).

3. The corrosion detection probe for oil and gas pipelines according to claim 1, characterized in that: The transparent ring (201) is disposed outside the annular groove (102), and a connecting ring (202) is fixed to the top of the transparent ring (201). The top of the connecting ring (202) is fixed to the bottom of the mounting block (4).

4. The corrosion detection probe for oil and gas pipelines according to claim 2, characterized in that: The mounting ring (3) has three equally spaced annular light strips (301) fixed around its periphery. The bottom end of the mounting ring (3) is symmetrically fixed with connecting wires (302), and the connecting wires (302) are all electrically connected to the three annular light strips (301).

5. The corrosion detection probe for oil and gas pipelines according to claim 4, characterized in that: The end of the miniature camera head (402) away from the protective lens (403) is fixed with a common pipeline (404). The common pipeline (404) is electrically connected to the miniature camera head (402). The common pipeline (404) is arranged in an L-shape and the upper part of the vertical part of the common pipeline (404) is fixed inside the lower part of the mounting block (4).

6. The corrosion detection probe for oil and gas pipelines according to claim 5, characterized in that: The connecting wire (302) is fixed in the second fixing hole (103) and extends out of the second fixing hole (103). The lower part of the vertical part of the common pipeline (404) is fixed in the first fixing hole (101) in the filling block (1) and extends out.

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