Screw anchor foundation cathode protection system

Abstract

The utility model relates to the technical field of power transmission and distribution construction, in particular to a screw anchor foundation cathode protection system which comprises a screw anchor foundation cathode protection device and a detection device. The cathode protection device comprises a spiral anchor foundation buried underground, a plurality of sacrificial anodes and a soil box, the sacrificial anodes are buried in the soil box, and the soil box is placed on the ground; the detection device is connected with the spiral anchor foundation through a test line; the spiral anchor foundation is connected with the sacrificial anodes through anode cables; and cable terminals are arranged at the end parts of the anode cable and the test wire. According to the utility model, the cable terminals are arranged at the end parts of the anode cable and the test wire, so that the anode cable and the test wire can be connected with the spiral anchor foundation through bolts, the field thermit welding operation is avoided, and the operation efficiency is improved; by arranging the soil box on the ground and burying the sacrificial anode in the soil box, the ground does not need to be excavated when the sacrificial anode is replaced, and the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission and distribution construction, in particular to a spiral anchor foundation cathodic protection system. Background Art

[0002] In recent years, more and more transmission line towers have adopted steel spiral anchor foundations, which are buried underground. When encountering underground corrosive environment, the steel spiral anchor foundation is easy to corrode and has poor durability. The existing steel spiral anchor foundation cathodic protection device needs to be welded on site by thermite welding and must be buried below the ground, which is inconvenient to replace.

[0003] In summary, there is an urgent need to provide a spiral anchor foundation cathodic protection system to solve the problems existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a cathodic protection system for spiral anchor foundations, and the specific technical scheme is as follows:

[0005] A spiral anchor foundation cathodic protection system, comprising a spiral anchor foundation cathodic protection device and a detection device; the spiral anchor foundation cathodic protection device comprises a spiral anchor foundation buried underground, a plurality of sacrificial anodes and a soil box, wherein the plurality of sacrificial anodes are buried in the soil box, and the soil box is placed on the ground;

[0006] The detection device is connected to the spiral anchor foundation through a test line; the spiral anchor foundation and the plurality of sacrificial anodes are connected through an anode cable; and the ends of the anode cable and the test line are both provided with cable terminals.

[0007] Furthermore, a flange is provided on the spiral anchor base, and the anode cable and the test line are connected to the flange through copper bolts.

[0008] Furthermore, the distance between the plurality of sacrificial anodes and the screw anchor foundation is ≥0.3 m, and the distance between adjacent sacrificial anodes is ≥0.3 m.

[0009] Furthermore, the detection device includes a detection pile and a long-acting copper sulfate reference electrode; the long-acting copper sulfate reference electrode is buried underground, and the detection pile is buried underground and protrudes above the ground;

[0010] The detection pile is provided with a test panel, and the test panel is arranged on the pile body of the detection pile protruding above the ground; the test line is connected to the test terminal 1 on the test panel, and the cable of the long-acting copper sulfate reference electrode is connected to the test terminal 2 on the test panel.

[0011] Furthermore, a fixing device is provided at the bottom of the detection pile, and the fixing device is buried underground.

[0012] Furthermore, the detection device also includes a potential detection device, and the potential detection device detects the potential between the first test terminal and the second test terminal.

[0013] Furthermore, the potential detection device includes a multimeter, one probe of the multimeter is connected to test terminal one, and the other probe is connected to test terminal two.

[0014] Furthermore, the soil boxes are provided in plurality, and the plurality of sacrificial anodes are respectively buried in different soil boxes.

[0015] The application of the technical solution of the utility model has the following beneficial effects:

[0016] (1) The utility model provides a spiral anchor foundation cathodic protection system, including a spiral anchor foundation cathodic protection device and a detection device; the spiral anchor foundation cathodic protection device includes a spiral anchor foundation buried underground, a plurality of sacrificial anodes and a soil box, wherein the plurality of sacrificial anodes are buried in the soil box, and the soil box is placed on the ground; the detection device is connected to the spiral anchor foundation through a test line; the spiral anchor foundation and the plurality of sacrificial anodes are connected through an anode cable; the ends of the anode cable and the test line are both provided with cable terminals. In the utility model, the ends of the anode cable and the test line are both provided with cable terminals, so that the anode cable and the test line can be connected to the spiral anchor foundation through bolts, thereby avoiding on-site thermite welding operations and improving operation efficiency; by setting up a soil box on the ground and burying the sacrificial anode in the soil box, it is not necessary to excavate the ground when replacing the sacrificial anode, and the operation is more convenient.

[0017] (2) In the present invention, the distance between the plurality of sacrificial anodes and the screw anchor foundation is ≥0.3 m, and the distance between adjacent sacrificial anodes is ≥0.3 m, so as to ensure that the sacrificial anodes play a protective role.

[0018] (3) In the present invention, a long-acting copper sulfate reference electrode is used to measure the potential of the spiral anchor foundation, making the potential measurement result more accurate.

[0019] (4) In the present invention, the detection pile is provided with a test panel, and the test panel is provided on the pile body of the detection pile protruding above the ground; the test line is connected to the test terminal 1 on the test panel, and the cable of the long-acting copper sulfate reference electrode is connected to the test terminal 2 on the test panel. By setting up the test pile, the potential measurement of the screw anchor foundation is transferred to the ground for operation, without the need to excavate the ground, and the operation is more convenient.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 is a schematic diagram of a cathodic protection device for a spiral anchor foundation in an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of a detection device in an embodiment of the utility model;

[0024] Among them, 1. spiral anchor foundation, 1.1. flange, 2. sacrificial anode, 3. soil box, 4. anode cable, 5. test line, 6. detection pile, 7. long-acting copper sulfate reference electrode, 8. fixing device. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0028] Example

[0029] See also Figure 1The present embodiment provides a spiral anchor foundation cathodic protection system (specifically, a steel spiral anchor foundation cathodic protection system), including a spiral anchor foundation cathodic protection device and a detection device; the spiral anchor foundation cathodic protection device includes a spiral anchor foundation 1 buried underground, a plurality of sacrificial anodes 2 and a soil box 3, wherein the plurality of sacrificial anodes 2 are buried in the soil box 3, and the soil box 3 is placed on the ground; preferably, the soil box 3 is provided with a plurality of sacrificial anodes 2, wherein the plurality of sacrificial anodes 2 are respectively buried in different soil boxes 3, and the soil in the soil box 3 is the same soil as that in which the spiral anchor foundation 1 is buried; the sacrificial anode 2 is buried in the soil box 3 above the ground, and when the sacrificial anode 2 is consumed, it can be directly replaced without excavating the ground, and the operation is more convenient.

[0030] See also Figure 1 and Figure 2 , the detection device is connected to the spiral anchor foundation 1 through the test line 5; the spiral anchor foundation 1 is connected to the multiple sacrificial anodes 2 through the anode cable 4; the ends of the anode cable 4 and the test line 5 are provided with cable terminals, preferably, the cable terminals are circular; the spiral anchor foundation 1 is provided with a flange 1.1, the flange 1.1 is provided with threaded holes, and the circular terminals on the anode cable 4 and the test line 5 are connected to the flange 1.1 through copper bolts; in this embodiment, by providing cable terminals, the anode cable 4 and the test line 5 can be connected to the spiral anchor foundation 1 through bolts, thereby avoiding on-site thermite welding operations and improving operating efficiency.

[0031] In this embodiment, the distance between the plurality of sacrificial anodes 2 and the spiral anchor foundation 1 is ≥0.3 m, and the distance between adjacent sacrificial anodes 2 is ≥0.3 m, so as to ensure that the sacrificial anodes 2 play a protective role.

[0032] See also Figure 2 In this embodiment, the detection device includes a detection pile 6 and a long-acting copper sulfate reference electrode 7, and each spiral anchor foundation 1 is equipped with at least one detection device; the long-acting copper sulfate reference electrode 7 is buried underground, about 1 meter away from the detection pile 6, and the detection pile 6 is buried underground and protrudes above the ground;

[0033] The detection pile 6 is provided with a test panel, and the test panel is provided on the pile body of the detection pile 6 protruding above the ground; the test line 5 is fixed to the test terminal 1 on the test panel, and the cable of the long-acting copper sulfate reference electrode 7 is fixed to the test terminal 2 on the test panel. By providing the test pile 6, the potential measurement of the spiral anchor foundation 1 is transferred to the ground for operation, and there is no need to excavate the ground, which is more convenient to operate.

[0034] In this embodiment, see Figure 2A fixing device 8 is provided at the bottom of the detection pile 6. The fixing device 8 is buried underground and is used to reinforce and fix the detection pile 6. The fixing device 8 is preferably a concrete fixing pier.

[0035] In this embodiment, the detection device further includes a potential detection device, which detects the potential between test terminal 1 and test terminal 2. Preferably, the potential detection device includes a multimeter, one probe of the multimeter is connected to test terminal 1, and the other probe is connected to test terminal 2; during the test, the DC 2V position of the multimeter is used for measurement, and the protection potential (multimeter reading) is measured to be between -0.6V and -1.2V, indicating that the spiral anchor foundation 1 is in a protection state.

[0036] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cathodic protection system for a screw anchor foundation, characterized in that: The invention comprises a screw anchor foundation cathodic protection device and a detection device; the screw anchor foundation cathodic protection device comprises a screw anchor foundation (1) buried underground, a plurality of sacrificial anodes (2) and a soil box (3); the plurality of sacrificial anodes (2) are buried in the soil box (3); and the soil box (3) is placed on the ground; The detection device is connected to the spiral anchor foundation (1) via a test line (5); the spiral anchor foundation (1) and the plurality of sacrificial anodes (2) are connected via an anode cable (4); and the ends of the anode cable (4) and the test line (5) are both provided with cable terminals.

2. The cathodic protection system for spiral anchor foundation according to claim 1, characterized in that: A flange (1.1) is provided on the spiral anchor foundation (1), and the anode cable (4) and the test line (5) are connected to the flange (1.1) via copper bolts.

3. The cathodic protection system for spiral anchor foundation according to claim 1, characterized in that: The distance between the plurality of sacrificial anodes (2) and the spiral anchor foundation (1) is ≥0.3 m, and the distance between adjacent sacrificial anodes (2) is ≥0.3 m.

4. The cathodic protection system for spiral anchor foundation according to claim 1, characterized in that: The detection device comprises a detection pile (6) and a long-acting copper sulfate reference electrode (7); the long-acting copper sulfate reference electrode (7) is buried underground, and the detection pile (6) is buried underground and protrudes above the ground; The detection pile (6) is provided with a test panel, and the test panel is arranged on the pile body of the detection pile (6) protruding above the ground; the test line (5) is connected to the test terminal 1 on the test panel, and the cable of the long-acting copper sulfate reference electrode (7) is connected to the test terminal 2 on the test panel.

5. The cathodic protection system for spiral anchor foundation according to claim 4, characterized in that: A fixing device (8) is provided at the bottom of the detection pile (6), and the fixing device (8) is buried underground.

6. The cathodic protection system for spiral anchor foundation according to claim 4, characterized in that: The detection device further comprises a potential detection device, and the potential detection device detects the potential between the first test terminal and the second test terminal.

7. The cathodic protection system for spiral anchor foundation according to claim 6, characterized in that: The potential detection device comprises a multimeter, one probe of the multimeter is connected to the first test terminal, and the other probe is connected to the second test terminal.

8. The cathodic protection system for spiral anchor foundation according to any one of claims 1 to 7, characterized in that: The soil boxes (3) are provided in plurality, and the plurality of sacrificial anodes (2) are respectively buried in different soil boxes (3).

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