Test pile for measuring polarization potential of natural gas pipeline

Abstract

The utility model relates to a test pile for measuring polarization potential of a natural gas pipeline, which comprises a pile body, a fixing plate arranged at the bottom of the pile body and used for being anchored in the ground, a junction box arranged at the top of the pile body, a threading hole arranged on the surface of the pile body close to the fixing plate, a wiring panel arranged in the junction box, and a wiring terminal arranged on the wiring panel. A polarization test piece, a pipeline, a long-acting reference electrode and an anode block are embedded in the ground, a cable penetrating through a threading hole is arranged in the pile body, a first cable is connected with a third wiring terminal and the polarization test piece, a second cable is connected with a fourth wiring terminal and the long-acting reference electrode, and a third cable is connected with a fifth wiring terminal and the anode block. The fourth cable is connected with the sixth wiring terminal and the pipeline, the first switch is connected between the third wiring terminal and the sixth wiring terminal, and the second switch is connected between the fifth wiring terminal and the sixth wiring terminal. The testing pile has the advantages of solving the problem that the existing testing pile is inconvenient to wire and measure, and improving the working efficiency of measurement.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, and in particular to a test pile for measuring the polarization potential of natural gas pipelines. Background Technology

[0002] Cathodic protection technology is widely used in the corrosion protection of natural gas pipelines. Polarization potential, as a key parameter for the effectiveness of cathodic protection, is crucial for accurately measuring the pipeline's corrosion status and predicting its service life. Test stakes are devices specifically designed for testing pipeline cathodic protection. They are mainly used to detect parameters such as cathodic protection current, potential, and insulation performance, and are indispensable equipment in pipeline management and maintenance. Existing commercially available test stakes are typically designed as tubular structures with limited internal space, resulting in lengthy wiring and measurement time. Furthermore, since multimeters are used for measurement, the measuring probes need to be kept in contact with the terminals for extended periods, requiring dedicated personnel to operate the probes, which adds inconvenience to the measurement work.

[0003] Therefore, it is necessary to develop a test pile for measuring the polarization potential of natural gas pipelines to overcome the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a test pile for measuring the polarization potential of natural gas pipelines, which effectively overcomes the defects of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A test pile for measuring the polarization potential of a natural gas pipeline includes a vertically arranged, hollow pile body. A fixing plate for anchoring the pile body to the ground is located at the bottom of the pile body. A junction box is installed at the top of the pile body. A through-hole is formed on the surface of the pile body near the fixing plate. A wiring panel is installed inside the junction box, and the wiring panel is equipped with a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal. A polarization test piece, a pipeline, a long-term reference electrode, and an anode block are embedded in the ground. A first cable, a second cable, a third cable, and a fourth cable pass through the through-hole inside the pile body. The first cable connects to the third terminal and the polarization test piece, the second cable connects to the fourth terminal and the long-term reference electrode, the third cable connects to the fifth terminal and the anode block, and the fourth cable connects to the sixth terminal and the pipeline. A first switch connects to the third and sixth terminals, and a second switch connects to the fifth and sixth terminals.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the top of the junction box is equipped with a conical rain shield.

[0009] Furthermore, the aforementioned junction box is a cylindrical box that is coaxially distributed with the aforementioned pile body.

[0010] Furthermore, the junction box has a hinged door that can be opened or closed, and a lock body is provided on one side of the door to lock or open the junction box.

[0011] Furthermore, a nameplate for displaying the circuit is provided on the upper part of the surface of the aforementioned pile.

[0012] Furthermore, the aforementioned wiring panel is mounted inside the aforementioned junction box via a bracket.

[0013] Furthermore, the aforementioned wiring panel is made of plastic or ceramic insulating board.

[0014] Furthermore, the first, second, third, fourth, fifth, and sixth terminals have the same structure. The first terminal includes a fixed base and a connecting post. The fixed base is embedded in one side of the wiring panel. The connecting post is perpendicular to the wiring panel, and one end of the connecting post is connected and fixed to the fixed base. Both the fixed base and the connecting post are conductive metal parts. The connecting post has a socket, and multiple conductive metal springs are spaced circumferentially on the inner wall of the socket.

[0015] Furthermore, the aforementioned metal spring is arched and is arranged along the length of the aforementioned connecting post.

[0016] Furthermore, the side wall of the aforementioned connecting column has multiple slits from the middle to the upper end, and a wall surface that can change shape is defined between adjacent slits. The outer surface of the upper side wall of the aforementioned connecting column is threaded and threaded with a locking nut.

[0017] The beneficial effects of this utility model are: the structure is reasonably designed, which can solve the problem that existing test piles are inconvenient for wiring and measurement, and improve the efficiency of measurement work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the test pile for measuring the polarization potential of a natural gas pipeline according to this utility model;

[0019] Figure 2 This is a diagram showing the usage status of the test pile for measuring the polarization potential of a natural gas pipeline according to this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of the G section structure;

[0021] Figure 4 This is a schematic diagram of the wiring terminals in the test pile for measuring the polarization potential of a natural gas pipeline according to this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Pile body; 2. Fixing plate; 3. Junction box; 4. Wiring hole; 6. Wiring panel; 7. First switch; 8. Second switch; 10. Box door; 11. Lock body; 12. Rain cover; 13. Nameplate; 14. Polarization test piece; 15. Pipe; 16. Long-term reference electrode; 17. Anode block; 62. Fixing base; 63. Connecting column; 64. Locking nut; 65. Socket; 66. Metal spring. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] Example

[0026] like Figure 1 , 2 As shown, the test pile for measuring the polarization potential of a natural gas pipeline in this embodiment includes a vertically arranged and hollow pile body 1. A fixing plate 2 for anchoring to the ground is provided at the bottom of the pile body 1. A junction box 3 is installed at the top of the pile body 1. A wire-passing hole 4 is opened on the surface of the pile body 1 near the fixing plate 2. A wiring panel 6 is installed inside the junction box 3. The wiring panel 6 is equipped with a first terminal A, a second terminal D, a third terminal B, a fourth terminal E, a fifth terminal C, and a sixth terminal F. A polarization test piece 14, a pipeline 15, a long-term reference electrode 16, and an anode are buried in the ground. Block 17, the pile body 1 is provided with a first cable, a second cable, a third cable and a fourth cable passing through the wire hole 4. The first cable is connected to the third terminal B and the polarization test piece 14 respectively. The second cable is connected to the fourth terminal E and the long-term reference electrode 16 respectively. The third cable is connected to the fifth terminal C and the anode block 17 respectively. The fourth cable is connected to the sixth terminal F and the pipe 15 respectively. A first switch 7 is connected between the third terminal B and the sixth terminal F. A second switch 8 is connected between the fifth terminal C and the sixth terminal F.

[0027] In this embodiment, the test pile for measuring the polarization potential of a natural gas pipeline has a junction box 3 at the top of the hollow pile body 1, which provides a larger operating space compared to traditional test piles. This makes wiring during installation and measurement easier, thus facilitating the measurement work. The wiring panel 6 has also been redesigned, allowing for direct insertion of the multimeter probes into the terminals, eliminating the need to hold the probes and freeing up hands for measurement and recording, making the entire measurement process simpler. Furthermore, a switch is installed on the surface of the wiring panel 6, allowing for circuit opening and closing, avoiding traditional disassembly and assembly work and improving overall measurement efficiency. Specifically, closing the second switch 8 connects the anode block 17 to the pipeline 15, protecting the pipeline 15. During measurement, one multimeter probe is connected to terminal E, and the other probe is connected to terminal B. Disconnecting the first switch 7 allows the potential of the polarization test piece 14 to be measured.

[0028] In this embodiment, the top of the junction box 3 is provided with a conical rain shield 12. The design of the rain shield 12 can block rain and prevent rainwater from directly washing over the junction box 3, which could lead to potential safety accidents.

[0029] In this embodiment, the junction box 3 is a cylindrical box that is coaxially distributed with the pile body 1.

[0030] In this embodiment, the junction box 3 is hinged to a door 10 that can be opened or closed, and a lock body 11 is provided on one side of the door 10 to lock or open the junction box 3. More specifically, a sealing ring is provided at the inner edge of the door 10, which can improve the waterproofness of the door 10 after it is closed.

[0031] In this embodiment, a nameplate 13 for displaying the wiring is provided on the upper surface of the aforementioned pile body 1. The nameplate 13 records a wiring diagram, which facilitates wiring during the installation process.

[0032] The aforementioned wiring panel 6 is mounted inside the aforementioned junction box 3 via a bracket.

[0033] In this embodiment, the wiring panel 6 is a plastic or ceramic insulating board.

[0034] In this embodiment, the first, second, third, fourth, fifth, and sixth terminals have the same structure. The first terminal includes a fixed base 62 and a connecting post 63. The fixed base 62 is embedded in one side of the wiring panel 6, and the connecting post 63 is perpendicular to the wiring panel 6, with one end of the connecting post 63 connected and fixed to the fixed base 62. Both the fixed base 62 and the connecting post 63 are conductive metal parts. The connecting post 63 has a socket 65, and a plurality of conductive metal springs 66 are spaced circumferentially on the inner wall of the socket 65. The fixed base 62 and the connecting post 63 are both made of copper. In use, the multimeter probe is inserted into the socket 65 and squeezed between the metal springs 66, making close contact with the metal springs 66 to conduct electricity.

[0035] In this embodiment, the aforementioned metal spring 66 is arched and is arranged along the length direction of the aforementioned connecting post 63. After the pen tip is inserted into the insertion hole 65, it will form a tight compression contact with the metal spring 66.

[0036] In this embodiment, the side wall of the connecting post 63 has multiple slits from the middle to the upper end, and a wall surface that can change shape between adjacent slits is defined. The outer surface of the upper side wall of the connecting post 63 is threaded and threadedly connected to a locking nut 64. This structural design allows the multiple walls to tend to close inward as the locking nut 64 is turned upward (when the locking nut 64 is in the lower position, the multiple walls are slightly expanded outward), thereby holding the pen tip inserted into the insertion hole 65.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A test pile for measuring the polarization potential of a natural gas pipeline, characterized in that: The system includes a vertically arranged, hollow pile (1), with a fixing plate (2) at the bottom for anchoring to the ground, a junction box (3) at the top, and a wire hole (4) on the surface of the pile (1) near the fixing plate (2). The junction box (3) contains a wiring panel (6) with a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, and a sixth terminal. A polarization test piece (14), a pipe (15), a long-life reference electrode (16), and an anode block (17) are buried in the ground. The pile body (1) is provided with a first cable, a second cable, a third cable and a fourth cable passing through the wire hole (4). The first cable is connected to the third terminal and the polarization test piece (14) respectively. The second cable is connected to the fourth terminal and the long-term reference electrode (16) respectively. The third cable is connected to the fifth terminal and the anode block (17) respectively. The fourth cable is connected to the sixth terminal and the pipe (15) respectively. A first switch (7) is connected between the third terminal and the sixth terminal. A second switch (8) is connected between the fifth terminal and the sixth terminal.

2. The test pile for measuring the polarization potential of a natural gas pipeline according to claim 1, characterized in that: The top of the junction box (3) is provided with a conical rain shield (12).

3. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 1, characterized in that: The junction box (3) is a cylindrical box that is coaxially distributed with the pile body (1).

4. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 1, characterized in that: The junction box (3) has a hinged door (10) that can be opened or closed, and a lock body (11) is provided on one side of the door (10) to lock or open the junction box (3).

5. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 1, characterized in that: The upper part of the surface of the pile (1) is provided with a nameplate (13) for displaying the line.

6. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 1, characterized in that: The wiring panel (6) is mounted inside the junction box (3) via a bracket.

7. A test pile for measuring the polarization potential of a natural gas pipeline according to any one of claims 1 to 6, characterized in that: The wiring panel (6) is made of plastic or ceramic insulating board.

8. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 7, characterized in that: The first terminal block, the second terminal block, the third terminal block, the fourth terminal block, the fifth terminal block, and the sixth terminal block have the same structure. The first terminal block includes a fixed base (62) and a connecting post (63). The fixed base (62) is embedded in one side of the wiring panel (6). The connecting post (63) is perpendicular to the wiring panel (6), and one end of the connecting post (63) is connected and fixed to the fixed base (62). The fixed base (62) and the connecting post (63) are both conductive metal parts. The connecting post (63) is provided with a socket (65). Multiple conductive metal springs (66) are spaced circumferentially on the inner wall of the socket (65).

9. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 8, characterized in that: The metal spring (66) is arched and is arranged along the length of the connecting column (63).

10. A test pile for measuring the polarization potential of a natural gas pipeline according to claim 8, characterized in that: The side wall of the connecting column (63) has multiple slits from the middle to the upper end, and a wall surface that can change shape is defined between adjacent slits. The outer surface of the upper side wall of the connecting column (63) is threaded and threaded with a locking nut (64).

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