Petroleum pipeline cathode protection grounding mechanism

Abstract

The utility model relates to the technical field of cathode protection equipment, and discloses a petroleum pipeline cathode protection grounding mechanism which comprises a first pipeline, a second pipeline is arranged at the top of the first pipeline, the first pipeline and the second pipeline are connected and assembled through a first bolt and a gasket, the outer side of the second pipeline is fixedly connected with a test box, and the test box is fixedly connected with a grounding device. A detection plate is fixedly connected to the interior of the test box, a reference electrode is fixedly connected to the outer side of the detection plate, a petroleum pipeline body is arranged on the outer side of the first pipeline, an anode block is fixedly connected to the top of the petroleum pipeline body, a reinforcing assembly is arranged on the outer side of the first pipeline, and the reinforcing assembly comprises a transverse rib plate; the transverse rib plates are fixedly connected to the outer side of the first pipeline. According to the utility model, under the cooperation of structures such as the pipeline I, the pipeline II, the gasket, the positioning groove and the bolt, the length of the mechanism is adjusted, the mechanism adapts to different mounting environments, and the mounting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cathodic protection equipment technology, and in particular to a cathodic protection grounding mechanism for oil pipelines. Background Technology

[0002] Oil pipelines are pipeline systems used to transport oil and petroleum products. They are usually made of high-strength steel pipes or other corrosion-resistant materials and have a certain diameter and wall thickness to withstand the pressure during oil transportation.

[0003] Oil pipelines are usually buried in the soil. Due to the conductivity of the soil, an electrochemical corrosion cell is formed. In this cell, the pipeline metal becomes the anode, loses electrons and corrodes. Cathodic protection makes the pipeline the cathode, inhibiting the anodic reaction and thus preventing pipeline corrosion.

[0004] In existing technologies, cathodic protection grounding mechanisms for oil pipelines connect to the pipeline using a metal that is more reactive than the metal itself, inserted into the soil. In corrosive environments, the sacrificial anode preferentially corrodes, releasing electrons that flow to the pipeline, making the pipeline the cathode and placing it in a cathodic protection state, effectively preventing pipeline corrosion. Although this ensures the safe operation of oil pipelines, it has shortcomings. Because the cathodic protection grounding mechanism needs to be inserted into the soil, the insertion depth must match the laying depth of the oil pipeline. However, existing mechanisms are usually one-piece structures, and when the insertion length is insufficient, another batch of mechanisms needs to be replaced, which is cumbersome and cannot adapt to different insertion depth requirements, increasing operating costs and reducing the flexibility of the mechanism. Therefore, a cathodic protection grounding mechanism for oil pipelines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cathodic protection grounding mechanism for oil pipelines, aiming to improve the problem that the integrated structure of the existing cathodic protection grounding mechanism cannot adapt to the insertion requirements of different depths, thus increasing operating costs and reducing the flexibility of the mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cathodic protection grounding mechanism for an oil pipeline includes a first pipeline, a second pipeline disposed on the top of the first pipeline, the first pipeline and the second pipeline being connected and assembled by a bolt and a washer, a test box being fixedly connected to the outside of the second pipeline, a detection plate being fixedly connected inside the test box, a reference electrode being fixedly connected to the outside of the detection plate, an oil pipeline body being disposed on the outside of the first pipeline, an anode block being fixedly connected to the top of the oil pipeline body, and a reinforcement component being disposed on the outside of the first pipeline.

[0008] As a further description of the above technical solution:

[0009] The reinforcing component includes a transverse rib, which is fixedly connected to the outside of the first pipe, and a longitudinal rib is fixedly connected to the middle of the transverse rib.

[0010] As a further description of the above technical solution:

[0011] Both the outer sides of pipe one and pipe two are provided with positioning grooves, and the gasket is installed inside the positioning grooves;

[0012] As a further description of the above technical solution:

[0013] The gasket has a through hole, the positioning groove has a screw hole, and a plurality of bolts are specifically provided, with the plurality of bolts passing through the through hole and being screwed into the screw hole for assembly.

[0014] As a further description of the above technical solution:

[0015] A vent is provided in the middle of the second pipe, a rain shield is fixedly connected to the top of the second pipe, and a dustproof net is installed inside the second pipe.

[0016] As a further description of the above technical solution:

[0017] A capacitance tester and a current tester are fixedly connected to the outside of the detection plate.

[0018] As a further description of the above technical solution:

[0019] A detection head is provided on the top of the anode block, and the detection head is electrically connected to both the capacitance tester and the current tester.

[0020] As a further description of the above technical solution:

[0021] The bottom of the first pipe is fixedly connected to a base, and a bolt is provided in the middle of the base. A door is provided on the outside of the test box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by aligning the two ends of pipe one and pipe two, the movable shim is placed in the positioning groove, and bolt one is screwed into the shim, pipe one and pipe two in sequence to quickly fix the three together, increasing the overall length of the mechanism so that the length can be quickly adjusted according to the pipe depth, adapting to different installation environments, improving installation efficiency, and facilitating maintenance and replacement.

[0024] 2. In this utility model, by setting transverse ribs and longitudinal ribs on the surface of the pipe, an auxiliary reinforcement structure is formed at the grounding part of the mechanism, which increases the contact area and friction between the pipe and the soil, improves the stability of the overall structure, effectively improves the structural strength, increases the contact area with the soil, and improves the flexibility and applicability of installation. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a cathodic protection grounding mechanism for oil pipelines proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the transverse rib plate of a cathodic protection grounding mechanism for oil pipelines proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of bolt one of the cathodic protection grounding mechanism for oil pipelines proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the reference electrode of the cathodic protection grounding mechanism for oil pipelines proposed in this utility model.

[0029] Legend:

[0030] 1. Pipeline 1; 2. Pipeline 2; 3. Gasket; 4. Positioning groove; 5. Bolt 1; 6. Oil pipeline body; 7. Anode block; 8. Test box; 9. Detection plate; 10. Capacitance tester; 11. Current tester; 12. Reference electrode; 13. Box door; 14. Rain shield; 15. Vent hole; 16. Dustproof net; 17. Horizontal rib; 18. Longitudinal rib; 19. Bolt 2; 20. Base; 21. Detection head. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 3This utility model provides an embodiment of a cathodic protection grounding mechanism for an oil pipeline, comprising a first pipeline 1, a second pipeline 2 at the top of the first pipeline 1, the first pipeline 1 being used to connect the grounding part of the mechanism to the oil pipeline body 6, the second pipeline 2 being used to connect the first pipeline 1, improving the overall height flexibility to adapt to different depth operation conditions, the first pipeline 1 and the second pipeline 2 being connected and assembled by bolts 5 and washers 3, the washers 3 being used to enhance the fixing stability of the bolts 5 and the fixed object, a test box 8 being fixedly connected to the outside of the second pipeline 2, used to physically protect the internal structure and improve operational safety, a test plate 9 being fixedly connected inside the test box 8, used to provide installation space for installing various test structures, a reference electrode 12 being fixedly connected to the outside of the test plate 9, used to provide a potential reference and evaluate the cathodic protection effect, the oil pipeline body 6 being provided on the outside of the first pipeline 1, an anode block 7 being fixedly connected to the top of the oil pipeline body 6, used to provide cathodic protection current and prevent stray current interference, and a reinforcing component being provided on the outside of the first pipeline 1, used to improve the structural strength of the first pipeline 1, thereby improving the overall structural strength.

[0033] Reference Figure 1 and Figure 2 The reinforcing component includes a transverse rib 17, which is fixedly connected to the outside of the pipe 1. A longitudinal rib 18 is fixedly connected to the middle of the transverse rib 17. The transverse rib 17 and the longitudinal rib 18 are used to enhance the transverse stiffness and longitudinal stiffness of the pipe 1, respectively, increase the contact area with the soil, reduce the grounding resistance, and improve the cathodic protection efficiency.

[0034] Reference Figures 1-4 Both pipe 1 and pipe 2 have positioning grooves 4 on their outer sides at their close ends. Gaskets 3 are installed inside the aligned positioning grooves 4 to position the gaskets 3 and improve installation efficiency. Gaskets 3 have through holes, and positioning grooves 4 have screw holes. Multiple bolts 5 are provided, which pass through the through holes and are screwed into the screw holes. Pipe 2 has a vent hole 15 in its middle to allow water vapor inside the soil to evaporate, preventing water vapor from affecting the internal electronic components. A rain shield block 14 is fixedly connected to the top of pipe 2 to protect it from rainwater entering pipe 1 and pipe 2 through the vent hole 15. Inside, a dustproof net 16 is installed inside the second pipe 2. A capacitance tester 10 and a current tester 11 are fixedly connected to the outside of the detection plate 9. A detection head 21 is installed on the top of the anode block 7. The detection head 21 is electrically connected to both the capacitance tester 10 and the current tester 11 and is used to detect and transmit the cathodic protection effect of the oil pipeline body 6. A base 20 is fixedly connected to the bottom of the first pipe 1 to strengthen the strength of the bottom soil contact part and improve the stability of the overall structure. A bolt 29 is installed in the middle of the base 20 to fix the first pipe 1 and the base 20. A door 13 is installed on the outside of the test box 8.

[0035] Working principle: First, when adjusting the length, align the two ends of pipe 1 and pipe 2, place the movable shim 3 in the positioning groove 4, and then screw the bolt 5 into the shim 3, pipe 1 and pipe 2 in sequence to quickly fix the three, increase the overall length of the mechanism, and make the length adjust quickly according to the pipe depth.

[0036] Secondly, during assembly, the detection head 21 is installed at the anode block 7 and connected to the capacitance tester 10 and the current tester 11. By comparing with the reference electrode 12, the cathodic protection status of the pipeline is determined. The internal water vapor is filtered through the vent hole 15 to improve the safety of the internal electronic components.

[0037] Furthermore, by setting transverse ribs 17 and longitudinal ribs 18 on the surface of pipe 1 to form an auxiliary reinforcement structure that increases the contact area and friction between pipe 1 and the soil, the stability of the overall structure is improved.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cathodic protection grounding mechanism for an oil pipeline, comprising a pipeline (1), characterized in that: Pipeline 1 (1) is provided with pipeline 2 (2) at the top. Pipeline 1 (1) and pipeline 2 (2) are connected and assembled by bolt 1 (5) and gasket (3). Test box (8) is fixedly connected to the outside of pipeline 2 (2). Test plate (9) is fixedly connected inside test box (8). Reference electrode (12) is fixedly connected to the outside of test plate (9). Oil pipeline body (6) is provided on the outside of pipeline 1 (1). Anode block (7) is fixedly connected to the top of oil pipeline body (6). Reinforcing component is provided on the outside of pipeline 1 (1).

2. The cathodic protection grounding mechanism for oil pipelines according to claim 1, characterized in that: The reinforcing component includes a transverse rib (17) fixedly connected to the outside of the pipe (1), and a longitudinal rib (18) fixedly connected to the middle of the transverse rib (17).

3. The cathodic protection grounding mechanism for oil pipelines according to claim 1, characterized in that: Positioning grooves (4) are provided on the outer sides of the adjacent ends of the first pipe (1) and the second pipe (2), and the gasket (3) is installed inside the aligned positioning grooves (4).

4. The cathodic protection grounding mechanism for oil pipelines according to claim 3, characterized in that: The gasket (3) has a through hole, the positioning groove (4) has a screw hole, and there are multiple bolts (5). The multiple bolts (5) pass through the through hole and are screwed into the screw hole.

5. The cathodic protection grounding mechanism for oil pipelines according to claim 1, characterized in that: The second pipe (2) has a ventilation hole (15) in the middle, a rain shield block (14) is fixedly connected to the top of the second pipe (2), and a dustproof net (16) is installed inside the second pipe (2).

6. The cathodic protection grounding mechanism for oil pipelines according to claim 1, characterized in that: A capacitance tester (10) and a current tester (11) are fixedly connected to the outside of the detection plate (9).

7. The cathodic protection grounding mechanism for oil pipelines according to claim 6, characterized in that: The top of the anode block (7) is provided with a detection head (21), which is electrically connected to both the capacitance tester (10) and the current tester (11).

8. The cathodic protection grounding mechanism for oil pipelines according to claim 1, characterized in that: The bottom of the first pipe (1) is fixedly connected to a base (20), and a bolt (19) is provided in the middle of the base (20). The test box (8) is provided with a door (13) on the outside.

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