Cathode protection device for buried pipeline

Abstract

The utility model discloses a buried pipeline cathode protection device, which belongs to the technical field of buried pipeline cathode protection and comprises a test pile and a sacrificial anode, a connecting piece is fixedly sleeved on the sacrificial anode and consists of a fixed lantern ring, a plurality of connecting plates and a fixed shaft, and the connecting plates are annularly distributed on the outer wall of the fixed lantern ring. A plurality of connecting plates are arranged on the sacrificial anode, a plurality of fixing shafts are fixedly mounted in the connecting plates respectively, anti-sedimentation assemblies are rotatably mounted on the fixing shafts, each anti-sedimentation assembly is composed of a connecting column and an anti-sedimentation plate, and the connecting pieces are arranged on the sacrificial anode and the anti-sedimentation assemblies are arranged on the connecting pieces and are matched with one another, so that the anti-sedimentation effect is improved; the anti-sedimentation assembly can provide support for the sacrificial anode, so that the probability that the sacrificial anode settles in soil is reduced, the position of the sacrificial anode is fixed, finally, when the sacrificial anode is replaced, the time for manually digging and searching the sacrificial anode is shortened, and the sacrificial anode is more convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of buried pipeline cathode protection, in particular to a buried pipeline cathode protection device. Background Art

[0002] Cathodic protection for buried pipelines is an important anti-corrosion technology widely used in various scenarios where metal corrosion prevention is necessary, particularly in oil and gas pipelines, storage tanks, and urban infrastructure. Cathodic protection is a form of electrochemical protection. Its basic principle is to apply an impressed current to the surface of the protected metal structure, turning it into a cathode. This inhibits the electron migration that occurs during metal corrosion, thereby preventing or reducing corrosion. When the potential of a metal is negative below a certain value, the anodic dissolution process of corrosion is effectively suppressed. This effect is known as the cathodic protection effect. To improve installation efficiency, traditional cathodic protection devices for buried pipelines typically place a metal block serving as a sacrificial anode in the soil surrounding the pipeline. However, when the metal block reaches a certain level of wear and needs to be replaced, it will shift position due to sedimentation, requiring manual excavation to locate it. This makes replacement inconvenient, impacting work efficiency. Summary of the Invention

[0003] The main purpose of the utility model is to provide a buried pipeline cathodic protection device, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A buried pipeline cathodic protection device includes a test pile and a sacrificial anode. A connecting piece is fixedly sleeved on the sacrificial anode. The connecting piece consists of a fixed collar, a connecting plate and a fixed shaft. There are several connecting plates and they are distributed in a ring shape on the outer wall of the fixed collar. There are several fixed shafts and they are respectively fixedly installed in several connecting plates. An anti-settling component is rotatably installed on the fixed shaft. The anti-settling component consists of a connecting column and an anti-settling plate. The anti-settling plate is fixedly installed on the outer end of the connecting column. The sacrificial anode is also sleeved with a support piece. The support piece is located below the connecting piece. The support piece consists of an internal threaded ring and a support support ring. The support support ring is fixedly sleeved on the internal threaded ring.

[0006] Preferably, the test pile and the sacrificial anode are connected via a wire, and the test pile is also connected to the buried pipeline via a wire.

[0007] Preferably, a thread is provided on the upper outer wall of the sacrificial anode.

[0008] Preferably, the fixing collar on the connecting piece is fixedly sleeved on the upper outer wall of the sacrificial anode, and the fixing collar is also located above the thread provided on the upper outer wall of the sacrificial anode. A connecting groove is provided on the connecting plate, and the fixed shaft is fixedly installed in the connecting groove.

[0009] Preferably, the connecting column on the anti-settling component is located in a connecting groove provided on the connecting plate, an axial hole is provided on the connecting column, and the connecting column is rotatably mounted on the fixed shaft through the axial hole.

[0010] Preferably, the internal thread ring on the support member can be installed on the thread provided on the upper outer wall of the sacrificial anode, the support ring is fixedly sleeved on the upper outer wall of the internal thread ring, and the upper end of the support ring is flush with the upper end of the internal thread ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By arranging a connector on the sacrificial anode and an anti-subsidence assembly on the connector, so that they cooperate with each other, the anti-subsidence assembly can provide support for the sacrificial anode, thereby reducing the probability of the sacrificial anode settling in the soil, and then fixing the position of the sacrificial anode. Finally, when replacing the sacrificial anode, the time for manual excavation to find the sacrificial anode is reduced, making the replacement of the sacrificial anode more convenient. At the same time, the anti-subsidence assembly can be rotated downward on the connector. Therefore, when the sacrificial anode is not installed, the anti-subsidence assembly can be rotated downward and folded, thereby reducing the storage and transportation space occupied by the device; by arranging the support member, the sacrificial anode can be buried in the soil, and the anti-subsidence assembly can be supported and fixed when the anti-subsidence assembly is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the sacrificial anode, connector, anti-settling component and support member of the present invention;

[0015] Figure 3 This is a schematic structural diagram of the connector of the present invention;

[0016] Figure 4 This is a schematic structural diagram of the anti-settling component of the present invention;

[0017] Figure 5 This is a schematic structural diagram of the support member of the present invention.

[0018] In the figure: 1. Test pile; 2. Sacrificial anode; 3. Buried pipeline; 4. Connector; 5. Anti-settling assembly; 6. Support; 7. Fixing collar; 8. Connecting plate; 9. Connecting groove; 10. Fixed shaft; 11. Connecting column; 12. Shaft hole; 13. Anti-settling plate; 14. Internal threaded ring; 15. Support ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, a buried pipeline cathodic protection device includes a test pile 1 and a sacrificial anode 2. The test pile 1 and the sacrificial anode 2 are connected by a wire, and the test pile 1 is also connected to the buried pipeline 3 by a wire. A connector 4 is fixedly mounted on the sacrificial anode 2. The connector 4 consists of a fixed collar 7, a connecting plate 8 and a fixed shaft 10. There are several connecting plates 8 and they are distributed in an annular shape on the outer wall of the fixed collar 7. There are several fixed shafts 10 and they are fixedly installed in several connecting plates 8 respectively. An anti-settling component 5 is rotatably mounted on the fixed shaft 10. The anti-settling component 5 consists of a connecting plate 8. The connecting column 11 is composed of an anti-settling plate 13, and the anti-settling plate 13 is fixedly installed on the outer end of the connecting column 11. The sacrificial anode 2 is also provided with a support member 6, which is located below the connecting member 4. The support member 6 is composed of an internal thread ring 14 and a support ring 15. The support ring 15 is fixedly sleeved on the internal thread ring 14. When the sacrificial anode 2 is buried in the soil, the anti-settling component 5 can be rotated 90 degrees with the fixed axis 10 on the connecting member 4 as the axis, so that the anti-settling component 5 and the sacrificial anode 2 are perpendicular to each other, and then the support member 6 can be set on the sacrificial anode 2. The anode 2 is placed on the support 6, and at the same time, the support member 6 is rotated on the thread provided on the outer wall of the upper side of the sacrificial anode 2, and finally the support ring 15 on the support member 6 will be against the lower end of the connecting column 11 on the anti-settling component 5. At this time, the anti-settling component 5 will be fixed by the support member 6, and then the sacrificial anode 2 can be erected and buried in the soil. By providing the connecting member 4 on the sacrificial anode 2 and the anti-settling component 5 on the connecting member 4, so that they cooperate with each other, the anti-settling component 5 can provide support for the sacrificial anode 2, thereby reducing the settlement of the sacrificial anode 2 in the soil. The probability is increased, and the position of the sacrificial anode 2 is fixed. Finally, when the sacrificial anode 2 is replaced, the time for manual excavation to find the sacrificial anode 2 is reduced, making the replacement of the sacrificial anode 2 more convenient. At the same time, the anti-subsidence component 5 can be rotated downward on the connecting piece 4. Therefore, when the sacrificial anode 2 is not installed, the anti-subsidence component 5 can be rotated downward and folded, thereby reducing the storage and transportation space occupied by the device. By arranging the support member 6, the sacrificial anode 2 can be buried in the soil. When the anti-subsidence component 5 is in use, the anti-subsidence component 5 is supported and fixed.

[0021] Furthermore, a thread is provided on the upper outer wall of the sacrificial anode 2 , and the thread on the sacrificial anode 2 cooperates with the internal thread ring 14 on the support member 6 to fix the anti-settling component 5 .

[0022] Furthermore, the fixing collar 7 on the connector 4 is fixedly sleeved on the upper outer wall of the sacrificial anode 2, and the fixing collar 7 is also located above the thread provided on the upper outer wall of the sacrificial anode 2. A connecting groove 9 is provided on the connecting plate 8, and a fixed shaft 10 is fixedly installed in the connecting groove 9. The connecting column 11 on the anti-settling component 5 is located in the connecting groove 9 provided on the connecting plate 8. An axial hole 12 is provided on the connecting column 11. The connecting column 11 is rotatably installed on the fixed shaft 10 through the axial hole 12. The internal threaded ring 14 on the support member 6 can be installed. It is mounted on the thread provided on the upper outer wall of the sacrificial anode 2, and the support ring 15 is fixedly sleeved on the upper outer wall of the internal thread ring 14, and the upper end of the support ring 15 is flush with the upper end of the internal thread ring 14. The inner corner of the lower end of the connecting column 11 has been chamfered, while the inner corner of the upper end of the connecting column 11 has not been chamfered. Therefore, when the anti-subsidence assembly 5 is perpendicular to the sacrificial anode 2 and the anti-subsidence assembly 5 is not blocked by the support member 6, the connecting column 11 can rotate downward in the connecting groove 9 but cannot rotate upward.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The scope of protection claimed in this utility model is defined by the attached claims and their equivalents.

Claims

1. A buried pipeline cathodic protection device, comprising a test pile (1) and a sacrificial anode (2), characterized in that: A connecting piece (4) is fixedly sleeved on the sacrificial anode (2), the connecting piece (4) comprising a fixing collar (7), a connecting plate (8) and a fixing shaft (10), the connecting plates (8) being in a plurality and distributed in an annular shape on the outer wall of the fixing collar (7), the fixing shafts (10) being in a plurality and fixedly mounted in the plurality of connecting plates (8), an anti-settling component (5) is rotatably mounted on the fixing shaft (10), the anti-settling component (5) comprising a connecting column (11) and an anti-settling plate (13), the anti-settling plate (13) being fixedly mounted on the outer end of the connecting column (11), and a supporting piece (6) being sleeved on the sacrificial anode (2), the supporting piece (6) being located below the connecting piece (4), the supporting piece (6) comprising an internal threaded ring (14) and a supporting support ring (15), the supporting support ring (15) being fixedly sleeved on the internal threaded ring (14).

2. A buried pipeline cathodic protection device according to claim 1, characterized in that: The test pile (1) and the sacrificial anode (2) are connected via a wire, and the test pile (1) is also connected to the buried pipeline (3) via a wire.

3. A buried pipeline cathodic protection device according to claim 2, characterized in that: The upper outer wall of the sacrificial anode (2) is provided with threads.

4. A buried pipeline cathodic protection device according to claim 3, characterized in that: The fixing collar (7) on the connecting member (4) is fixedly sleeved on the upper outer wall of the sacrificial anode (2), and the fixing collar (7) is also located above the thread provided on the upper outer wall of the sacrificial anode (2). The connecting plate (8) is provided with a connecting groove (9), and the fixing shaft (10) is fixedly installed in the connecting groove (9).

5. A buried pipeline cathodic protection device according to claim 4, characterized in that: The connecting column (11) on the anti-settling component (5) is located in a connecting groove (9) provided on the connecting plate (8), and an axial hole (12) is provided on the connecting column (11). The connecting column (11) is rotatably mounted on the fixed shaft (10) through the axial hole (12).

6. A buried pipeline cathodic protection device according to claim 5, characterized in that: The internal threaded ring (14) on the support member (6) can be mounted on a thread provided on the upper outer wall of the sacrificial anode (2); the support ring (15) is fixedly sleeved on the upper outer wall of the internal threaded ring (14); and the upper end of the support ring (15) is flush with the upper end of the internal threaded ring (14).

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