Cathode protection detection device for oil and gas pipeline

Abstract

The utility model discloses an oil and gas pipeline cathode protection detection device which comprises a base, a fixing assembly is arranged on the base, the fixing assembly comprises a rotating cone, the rotating cone is installed at the bottom of the base through a connecting base, the connecting base is of an n-shaped structure, the detection device further comprises a polarization probe, the base is of an annular structure, and the polarization probe is arranged on the base. The polarization probe is installed in the annular ring of the base through a bolt. According to the utility model, the detection device is rotated, so that the rotating cone rotates relative to the soil, the polarization probe is buried in the soil, the operation is convenient, and a worker can conveniently detect.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas pipeline detection, in particular to a cathode protection detection device for an oil and gas pipeline. Background Art

[0002] Cathodic protection of oil and gas pipelines is an electrochemical protection method used to prevent or slow the corrosion of pipeline metals. By applying a negative potential to the pipeline, turning it into a cathode, this inhibits and slows metal corrosion on the pipeline surface. Regular cathodic protection testing is necessary during oil and gas pipeline maintenance. Current testing methods require digging through the soil to insert a polarization probe. This requires significant effort due to the large number of test points. To address this, a cathodic protection testing device for oil and gas pipelines has been proposed. This device allows the polarization probe to be buried in the soil by rotating the testing device, making it easy to operate.

[0003] A search revealed Chinese patent application number 201610697286.2, which discloses an intelligent cathodic protection detection device for oil and gas pipelines. The device comprises a pile body, wherein a cathodic protection potential collector and a terminal block connected to the pile body via a collector signal cable are provided within the pile body; the cathodic protection potential collector is connected to an antenna within the pile body via an antenna feeder; the terminal block is connected to a pipeline outside the pile body via a zero-position cable, and to a test probe outside the pile body via a test probe cable. The detection device disclosed in the aforementioned patent has the following drawbacks: the device combines the detection device with the test pile, and because oil and gas pipelines are relatively long, a larger number of such devices are required, increasing the cost of detection. Utility Model Content

[0004] The purpose of the utility model is to further configure the device to solve the shortcomings of the prior art and to propose a cathodic protection detection device for oil and gas pipelines.

[0005] The device is further configured to achieve the above-mentioned purpose, and the utility model adopts the following technical solutions:

[0006] A cathodic protection detection device for an oil and gas pipeline includes a base, a fixing assembly is provided on the base, the detection device also includes a control module, the fixing assembly includes a rotating cone, the rotating cone is mounted on the bottom of the base via a connecting seat, the connecting seat has an X-shaped structure, the detection device also includes a polarization probe, the base has an annular structure, the polarization probe is mounted in an annular ring of the base via bolts, and the polarization probe is electrically connected to the control module.

[0007] As a further solution of the present invention: the fixing assembly also includes a fixing cone, a plurality of guide holes are provided on the base, the fixing cone is installed in the guide hole, a limiting ring is provided on the lower half of the fixing cone, and an annular seat is installed on the top of the fixing cone.

[0008] As a further solution of the present invention: the fixing assembly also includes a top block, a slide groove is provided on the top of the base, the top block is slidably installed in the slide groove, the top block has a trapezoidal structure, the oblique side of the top block is close to the inner side of the base, a pull rod is installed on the right-angled side of the top block, and an anti-slip pad is provided on the outside of the pull rod.

[0009] As a further solution of the present invention: the detection device also includes a mounting seat, which is installed on the top of the base through bolts. A sleeve is installed on the top of the mounting seat, and a sliding rod is slidably installed in the sleeve.

[0010] As a further solution of the present invention: the detection device also includes a tightening knob, which is arranged on one side of the top of the sleeve, and a rotating seat is installed on the top of the sliding rod.

[0011] As a further solution of the present invention: the detection device also includes a multimeter, which is installed on the top of the rotating seat by bolts, the multimeter is electrically connected to the control module, the multimeter is connected to the polarization probe by a wire, and handles are provided on both sides of the multimeter.

[0012] As a further solution of the present invention: the detection device also includes a fixing seat, which is installed on the sleeve by bolts, and a reel is installed on the fixing seat. A detection head is reeled in the reel, and the detection head is divided into two parts. One part is an elastic wire, and a probe is provided at the end of the wire.

[0013] The beneficial effects of the utility model are:

[0014] 1. Currently, during the cathodic protection testing of oil and gas pipelines, it is necessary to manually dig the soil and then place the polarization probe into the soil. This is inconvenient for multi-point testing and affects the efficiency of testing. By rotating the detection device, the rotating cone rotates the soil and the polarization probe is buried in the soil. This is convenient to operate and makes it easier for workers to perform testing.

[0015] 2. After the detection device rotates, bury the polarization probe in the soil, press down the annular seat to allow the fixing cone to penetrate into the soil, and fix the detection device to prevent it from tilting.

[0016] 3. The detection head is provided to facilitate the connection of the detection device to the test pile, and the retractor is provided to facilitate the retraction of the detection head, so as to facilitate the collection and recovery of the detection device after the detection is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a cathodic protection detection device for oil and gas pipelines proposed by the utility model;

[0018] Figure 2This is a structural diagram of the bottom of a cathodic protection detection device for oil and gas pipelines proposed by the utility model;

[0019] Figure 3 This is a partially enlarged structural diagram of a cathodic protection detection device for oil and gas pipelines proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the reel installation proposed by the utility model;

[0021] In the figure: 1-base, 2-fixing assembly, 3-mounting seat, 4-sleeve, 5-slide rod, 6-rotating seat, 7-multimeter, 8-handle, 9-fixing cone, 10-connecting seat, 11-rotating cone, 12-annular seat, 13-top block, 14-pull rod, 15-polarization probe, 16-fastening knob, 17-fixing seat, 18-winder, 19-detection head. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0023] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0024] Example 1

[0025] A cathodic protection detection device for oil and gas pipelines, such as Figures 1-4 As shown, the detection device includes a base 1, on which a fixing component 2 is provided. The detection device also includes a control module. The fixing component 2 includes a rotating cone 11, which is mounted on the bottom of the base 1 through a connecting seat 10. The connecting seat 10 has an X-shaped structure. The detection device also includes a polarization probe 15. The base 1 is an annular structure. The polarization probe 15 is mounted in an annular ring of the base 1 through bolts. The polarization probe 15 is electrically connected to the control module.

[0026] Currently, in the process of testing cathodic protection of oil and gas pipelines, it is necessary to manually dig the soil and then place the polarization probe 15 into the soil, which is inconvenient for multi-point testing and affects the efficiency of testing. By rotating the detection device, the rotating cone 11 rotates the soil and the polarization probe 15 is buried in the soil. The operation is convenient and it is convenient for staff to perform testing.

[0027] The device is further configured as follows: Figure 1 、 Figure 2As shown, the fixing assembly 2 also includes a fixing cone 9. A plurality of guide holes are provided on the base 1. The fixing cone 9 is installed in the guide hole. A limiting ring is provided on the lower half of the fixing cone 9. An annular seat 12 is installed on the top of the fixing cone 9.

[0028] After the detection device rotates, the polarization probe 15 is buried in the soil, and the annular seat 12 is pressed down to allow the fixing cone 9 to penetrate into the soil, thereby fixing the detection device and preventing the detection device from tilting.

[0029] The device is further configured as follows: Figure 1 、 Figure 3 As shown, the fixing assembly 2 also includes a top block 13, a slide groove is provided on the top of the base 1, and the top block 13 is slidably installed in the slide groove. The top block 13 has a trapezoidal structure, and the oblique side of the top block 13 is close to the inner side of the base 1. A pull rod 14 is installed on the right-angled side of the top block 13, and an anti-slip pad is provided on the outer side of the pull rod 14.

[0030] In order to prevent the fixed cone 9 from affecting the rotation during the rotation of the detection device, the annular seat 12 is lifted by pushing in the top block 13. After the rotation is completed, the top block 13 is pulled out, and the annular seat 12 is pressed to make the fixed cone 9 penetrate into the soil. After the detection is completed, the top block 13 is pushed with the foot to lift the annular seat 12 and raise the fixed cone 9.

[0031] The device is further configured as follows: Figure 1 As shown, the detection device further includes a mounting seat 3, which is mounted on the top of the base 1 by bolts. A sleeve 4 is mounted on the top of the mounting seat 3, and a slide rod 5 is slidably mounted in the sleeve 4.

[0032] The device is further configured as follows: Figure 1 As shown, the detection device further includes a tightening knob 16 , which is arranged on one side of the top of the sleeve 4 . A rotating seat 6 is installed on the top of the slide rod 5 , and the sliding of the slide rod 5 is restricted by rotating the tightening knob 16 .

[0033] The device is further configured as follows: Figure 1 As shown, the detection device also includes a multimeter 7, which is mounted on the top of the rotating base 6 by bolts. The multimeter 7 is electrically connected to the control module. The multimeter 7 is connected to the polarization probe 15 through a wire, and handles 8 are provided on both sides of the multimeter 7.

[0034] The height of the multimeter 7 can be adjusted by sliding the slide bar 5 , and the multimeter 7 can be rotated on the rotating base 6 by holding the handle 8 , so that the multimeter 7 can be operated conveniently by the staff.

[0035] The device is further configured as follows: Figure 1 、 Figure 4As shown, the detection device also includes a fixing base 17, which is mounted on the sleeve 4 by bolts, and a reel 18 is mounted on the fixing base 17. A detection head 19 is reeled in the reel 18. The detection head 19 is divided into two parts, one part is an elastic wire, and a probe is provided at the end of the wire. The structure and working principle of the reel 18 are existing technologies and are not described here. The detection head 19 is connected to the multimeter 7 through a wire.

[0036] The detection head 19 is provided to facilitate the connection of the detection device to the test pile, and the reel 18 is provided to facilitate the retraction of the detection head 19, so as to facilitate the collection and recovery of the detection device after the detection is completed.

[0037] Working principle: Rotate the detection device according to the cathodic protection detection method for oil and gas pipelines, bury the polarization probe 15 in the soil, then pull out the top block 13, press the annular seat 12 to make the fixing cone 9 penetrate into the soil, then pull out the detection head 19, connect the probe of the detection head 19 to the test pile, use the multimeter 7 to detect the voltage, and detect the cathodic protection of the pipeline.

[0038] The above is only a preferred specific implementation method of the present invention. Parts that do not require creative work such as circuit control and signal control transmission may refer to the existing technology, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cathodic protection detection device for an oil and gas pipeline, comprising a base (1), characterized in that: The base (1) is provided with a fixing assembly (2), the detection device further comprises a control module, the fixing assembly (2) comprises a rotating cone (11), the rotating cone (11) is mounted on the bottom of the base (1) via a connecting seat (10), the connecting seat (10) is in a cross-shaped structure, the detection device further comprises a polarization probe (15), the base (1) is an annular structure, the polarization probe (15) is mounted in an annular ring of the base (1) via bolts, and the polarization probe (15) is electrically connected to the control module.

2. The cathodic protection detection device for oil and gas pipelines according to claim 1, characterized in that: The fixing assembly (2) further comprises a fixing cone (9), a plurality of guide holes are provided on the base (1), the fixing cone (9) is installed in the guide holes, a limiting ring is provided on the lower half of the fixing cone (9), and an annular seat (12) is installed on the top of the fixing cone (9).

3. The cathodic protection detection device for oil and gas pipelines according to claim 2, characterized in that: The fixing assembly (2) further comprises a top block (13), a slide groove is provided on the top of the base (1), the top block (13) is slidably installed in the slide groove, the top block (13) is in a trapezoidal structure, the oblique side of the top block (13) is close to the inner side of the base (1), a pull rod (14) is installed on the right-angled side of the top block (13), and an anti-slip pad is provided on the outer side of the pull rod (14).

4. The cathodic protection detection device for oil and gas pipelines according to claim 3, characterized in that: The detection device also includes a mounting seat (3), which is mounted on the top of the base (1) via bolts. A sleeve (4) is mounted on the top of the mounting seat (3), and a slide rod (5) is slidably mounted in the sleeve (4).

5. The cathodic protection detection device for oil and gas pipelines according to claim 4, characterized in that: The detection device further comprises a fastening knob (16), which is arranged on one side of the top of the sleeve (4), and a rotating seat (6) is installed on the top of the slide rod (5).

6. The cathodic protection detection device for oil and gas pipelines according to claim 5, characterized in that: The detection device further comprises a multimeter (7), which is mounted on the top of the rotating seat (6) via bolts, the multimeter (7) is electrically connected to the control module, and the multimeter (7) is connected to the polarization probe (15) via a wire, and handles (8) are provided on both sides of the multimeter (7).

7. The cathodic protection detection device for oil and gas pipelines according to claim 6, characterized in that: The detection device further comprises a fixing seat (17), the fixing seat (17) being mounted on the sleeve (4) via bolts, a reel (18) being mounted on the fixing seat (17), a detection head (19) being reeled in the reel (18), and the detection head (19) being divided into two parts, one part being an elastic wire, the end of which is provided with a probe.

Images