CN216838192U - Cathode protection system for crossing river section pipeline - Google Patents
Cathode protection system for crossing river section pipeline Download PDFInfo
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- CN216838192U CN216838192U CN202220154729.4U CN202220154729U CN216838192U CN 216838192 U CN216838192 U CN 216838192U CN 202220154729 U CN202220154729 U CN 202220154729U CN 216838192 U CN216838192 U CN 216838192U
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Abstract
The utility model discloses a pass through cathodic protection system of river section pipeline, include: a river crossing duct for being buried under a river bed so that the river crossing duct passes through a river; the arrangement direction of the linear anodes is consistent with that of the river crossing pipelines, and the linear anodes are arranged on the surface of a river bed and under the water of a river; an underwater counterweight connected to the linear anode for positioning the linear anode at the surface of the river bed. The utility model discloses can carry out cathodic protection to the pipeline that passes the river effectively.
Description
Technical Field
The utility model relates to a pipeline anticorrosion technical field especially relates to a pass through cathodic protection system of river section pipeline.
Background
When a long-distance pipeline passes through a river, in order to save cost and meet the requirement of environmental protection, construction is generally carried out in a directional crossing mode. Although directional crossing has the advantages of small working surface, small excavation amount, small influence on environment and the like, in the back dragging process of the pipeline, particularly in a rock stratum, the problems of unsmooth holes, low direction control precision and the like often occur, so that an anti-corrosion layer of the pipeline is damaged, sometimes, a metal pipe body is even exposed, and the damage is generally unrepairable. In this case, the directional drilling through the section of the pipe is unavoidable for damage of the corrosion protection layer, and therefore cathodic protection of the directional drilling through the section of the pipe is very necessary.
At the present stage, because most of the two ends of the crossing section do not use available power sources, the conventional cathode protection mode is to arrange sacrificial anodes at the two ends of the directional crossing pipeline for protection, the mode is only suitable for penetrating short buried pipelines with small pipe diameters, and the problem of insufficient protection can occur for the crossing pipelines with large-diameter pipelines, long crossing sections, more underground rock layers and serious pipeline coating damage; even if the power supply condition allows, the protection effect of the protection method using the external current protection of the deep well anode at the two ends of the pipeline remains to be questioned as a cathode protection difficulty for the pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pass through cathodic protection system of river section pipeline, it can carry out cathodic protection to the pipeline that passes the river effectively.
In order to solve the technical problem, the utility model provides a pass through cathodic protection system of river section pipeline, include:
a river crossing duct for being buried under a river bed so that the river crossing duct passes through a river;
the arrangement direction of the linear anodes is consistent with that of the river crossing pipelines, and the linear anodes are arranged on the surface of a river bed and under the water of a river;
an underwater counterweight connected to the linear anode for positioning the linear anode at the surface of the river bed.
Preferably, the underwater counterweight is a counterweight.
Preferably, in the above technical solution, the number of the balancing weights is plural, and the plural balancing weights are arranged at equal intervals along the length direction of the linear anode.
Preferably, the cathodic protection system further comprises a potentiostat, and the potentiostat is electrically connected to the river-crossing pipeline and the linear anode, respectively.
Preferably, in the above technical solution, the potentiostat is a solar potentiostat.
Preferably, the potentiostat is electrically connected to the river-crossing pipeline through a reference electrode.
Preferably, the reference electrode is a saturated Cu/SO4 reference electrode.
Preferably, the surface of the river-crossing pipeline is provided with a protective coating.
Preferably, in the above technical solution, the length of the linear anode corresponds to the length of the river crossing duct.
Preferably, the linear anode is a specially-made linear anode used underwater, the specially-made linear anode comprises an anode cable, the MMO filament anode is arranged inside the anode cable in a penetrating mode, and the outer side of the anode cable is provided with a porous plastic pipe in a compounding mode.
The utility model provides a cathodic protection system for crossing river section pipeline, which comprises a river-crossing pipeline, a linear anode and an underwater counterweight, wherein the river-crossing pipeline is generally buried under a river bed, and the river-crossing pipeline passes through the whole river from the side surface, the linear anode is arranged along the river-crossing pipeline to ensure that the arrangement direction of the linear anode is consistent with that of the river-crossing pipeline, particularly, the river-crossing pipeline can be in a parallel state with the linear anode, the linear anode is arranged under the river and positioned on the surface of the river bed when in arrangement, in addition, the linear anode is also connected with the underwater counterweight, and the linear anode is positioned at the bottom of the river by the underwater counterweight to prevent displacement under the action of water flow, the utility model discloses a cathodic protection system for crossing river section pipeline, the arrangement of the linear anode is simple, and can not provide effective cathodic protection for the pipeline passing the river in the prior art, the utility model discloses a setting up of linear positive pole at the river can effectively provide effectual cathodic protection for wearing the river pipeline, has promoted the life who wears the river pipeline.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Fig. 1 shows a schematic structural diagram of a cathodic protection system for crossing river section pipelines according to an embodiment of the present invention;
in the figure: 1. a reference electrode; 2. a potentiostat; 3. a linear anode; 4. underwater counterweight; 5. and (4) passing through a river pipeline.
Detailed Description
To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a cathodic protection system for crossing a river section pipeline, including:
a river crossing duct 5, the river crossing duct 5 being for being buried under a river bed so that the river crossing duct 5 crosses a river;
the linear anode 3, the laying direction of the linear anode 3 is consistent with that of the river-crossing pipeline 5, and the linear anode 3 is arranged on the surface of the river bed and under the river;
and an underwater counterweight 4 connected with the linear anode 3 for positioning the linear anode 3 on the surface of the river bed.
The cathodic protection system for crossing river channel pipeline provided by this embodiment comprises a river crossing pipeline 5, a linear anode 3 and an underwater counterweight 4, wherein the river crossing pipeline 5 is generally buried under the river bed, and the river crossing pipeline 5 passes through the whole river from the side, the linear anode 3 is arranged along the river crossing pipeline 5, so that the arrangement direction of the linear anode 3 is consistent with that of the river crossing pipeline 5, specifically, the river crossing pipeline 5 and the linear anode 3 can be in parallel, the linear anode 3 is arranged under the river and on the surface of the river bed during the arrangement, in addition, the linear anode 3 is connected with the underwater counterweight 4, the linear anode 3 is positioned at the bottom of the river by the underwater counterweight 4, so as to prevent the displacement under the action of water flow, the cathodic protection system for crossing river channel provided by this embodiment has simple arrangement of the linear anode 3, compared with the prior art that effective cathodic protection cannot be provided for the pipeline penetrating through the river, the arrangement of the linear anode 3 in the river can effectively provide effective cathodic protection for the river-penetrating pipeline 5, and the service life of the river-penetrating pipeline 5 is prolonged.
In a further possible embodiment of this embodiment, the underwater weight 4 is a counterweight.
The underwater counterweight 4 in this embodiment is a counterweight block, which can facilitate the arrangement of the underwater counterweight 4.
In a further implementation manner of this embodiment, the number of the balancing weights is multiple, and the multiple balancing weights are disposed at equal intervals along the length direction of the linear anode 3.
A plurality of balancing weights in this embodiment set up along linear anode 3's length direction equidistant can play better positioning action to linear anode 3, and it can be so that linear anode 3 remain throughout and cross the relative position of river pipeline 5.
In a further embodiment of the present embodiment, the cathodic protection system further comprises a potentiostat 2, the potentiostat 2 being electrically connected to the river-crossing duct 5 and the linear anode 3, respectively.
The potentiostat 2 in this embodiment can be used as a power supply, and the potentiostat 2 is electrically connected to the linear anodes 3, respectively, and can provide stable current for the whole cathodic protection system, thereby preventing current instability from affecting the cathodic protection effect.
In a further possible implementation of the present embodiment, the potentiostat 2 is a solar potentiostat.
The potentiostat 2 in this embodiment is a solar potentiostat, which provides a stable current for the linear anode 3 by converting solar energy into electric energy of a power supply, and can solve the problem of inconvenience in power supply in a river-crossing pipeline environment and the problem of power supply of an impressed current system.
In a further embodiment of this embodiment, the potentiostat 2 is electrically connected to the river crossing pipe 5 via the reference electrode 1.
In this embodiment, the reference electrode 1 is electrically connected to the river-crossing pipe 5, which facilitates the control of the current passing through the linear anode 3.
In a further possible implementation of this example, reference electrode 1 is a saturated Cu/SO4 reference electrode.
Reference electrode 1 in this example was a saturated Cu/SO4 reference electrode, which reference electrode 1 was more accurate and more stable.
In a further possible embodiment of this embodiment, the surface of the river crossing duct 5 is provided with a protective coating.
The surface of river crossing pipeline 5 is provided with protective coating in this embodiment and it can play better guard action to river crossing pipeline 5, promotes the life of river crossing pipeline 5.
In a further possible embodiment of this embodiment, the length of the linear anode 3 corresponds to the length of the river crossing duct 5.
The length of linear anode 3 in this embodiment corresponds with the length of river crossing pipeline 5 and guarantees that each section of pipeline section all can reach cathodic protection effect, even the coating damage is serious, also can satisfy the electric current demand.
In a further implementation manner of the present embodiment, the linear anode 3 is a specially-made linear anode for underwater use, the specially-made linear anode includes an anode cable, the MMO filament anode is threaded inside the anode cable, and a porous plastic pipe is compositely arranged outside the anode cable.
In the embodiment, the underwater specially-made linear anode is adopted to output large current, the structure is more stable, and the service life is longer.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A cathodic protection system for a river-section crossing pipeline, comprising:
a river crossing duct for being buried under a river bed so that the river crossing duct passes through a river;
the arrangement direction of the linear anodes is consistent with that of the river crossing pipelines, and the linear anodes are arranged on the surface of a river bed and under the water of a river;
an underwater counterweight connected to the linear anode for positioning the linear anode at the surface of the river bed.
2. The system of claim 1, wherein the underwater weight is a counterweight.
3. The system of claim 2, wherein the number of the balancing weights is multiple, and the balancing weights are arranged at equal intervals along the length direction of the linear anode.
4. The cathodic protection system for a river crossing pipeline according to claim 1, further comprising a potentiostat electrically connected to the river crossing pipeline and the linear anode, respectively.
5. The cathodic protection system for a river crossing pipeline as set forth in claim 4 wherein said potentiostat is a solar potentiostat.
6. The cathodic protection system for a river crossing pipeline as set forth in claim 4 wherein said potentiostat is electrically connected to said river crossing pipeline via a reference electrode.
7. The cathodic protection system for a river segment crossing pipeline as recited in claim 6 wherein the reference electrode is a saturated Cu/SO4 reference electrode.
8. The river course crossing cathodic protection system of claim 1 wherein the surface of the river course crossing pipeline is provided with a protective coating.
9. The river course crossing cathodic protection system of claim 1 wherein the length of said linear anode corresponds to the length of said river course crossing pipeline.
10. The cathodic protection system for pipeline crossing river reach according to claim 1, wherein the linear anode is a specially made linear anode used under water, the specially made linear anode comprises an anode cable, the inside of the anode cable is penetrated with MMO filament anode, and the outside of the anode cable is compounded with a porous plastic pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220154729.4U CN216838192U (en) | 2022-01-20 | 2022-01-20 | Cathode protection system for crossing river section pipeline |
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| CN202220154729.4U CN216838192U (en) | 2022-01-20 | 2022-01-20 | Cathode protection system for crossing river section pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351151A (en) * | 2022-01-20 | 2022-04-15 | 浙江钰烯腐蚀控制股份有限公司 | Cathode protection system for crossing river section pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351151A (en) * | 2022-01-20 | 2022-04-15 | 浙江钰烯腐蚀控制股份有限公司 | Cathode protection system for crossing river section pipeline |
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