CN215906834U

CN215906834U - Novel single pile basis ICCP structure

Info

Publication number: CN215906834U
Application number: CN202121469774.0U
Authority: CN
Inventors: 沈明明; 李书磊; 杨丹丹; 尹庆凯; 朱旭甫; 徐侠剑; 郭守乾; 丁一晖; 石嘉玉; 赵朝辉; 王渊博
Original assignee: CITIC Heavy Industries Co Ltd; Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Current assignee: CITIC Heavy Industries Co Ltd; Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-25
Anticipated expiration: 2031-06-30

Abstract

The utility model provides a novel single pile basis ICCP structure, it predetermines the steel pipe to be equipped with the second on the cat ladder, lean on the inside first predetermined steel pipe that is equipped with of ship component, the lower extreme that leans on the ship component is equipped with the support, the erection point department of support is equipped with a plurality of auxiliary anode and reference electrode, the inside passageway that is equipped with of support, the auxiliary anode cable of being connected with auxiliary anode and the reference electrode cable of being connected with the reference electrode predetermine at support internal passage, auxiliary anode cable and reference electrode cable in the support internal passage pass and are connected with the constant potential rectifier on the inner flat bench after first predetermined steel pipe and the second predetermine the steel pipe. The auxiliary anode and the reference electrode are arranged below the ship-leaning component and are arranged along with the ship-leaning component, welding damage to the single-pile main body is avoided, underwater operation is avoided, operation efficiency is improved, construction cost is reduced, installation quality of the ICCP is improved, steel pipe wiring is reserved by the ship-leaning component and the crawling ladder, operation is simple, and safety and reliability are achieved.

Description

Novel single pile basis ICCP structure

Technical Field

The utility model relates to the field of offshore wind turbine foundations, in particular to a novel single-pile foundation ICCP structure.

Background

Offshore wind power is an important component of strategic emerging industries, scientific and technological industries and ocean economic development in China. Offshore wind power in China is undergoing an unprecedented high-speed development stage, the maturity of the current industrial chain is not enough to completely match the development rhythm, and when the development result is harvested, the problems of how to reduce the construction cost, how to overcome the offshore construction difficulty, high construction cost, how to reduce the pollution to ocean resources, how to improve the product quality and the like are considered from the technical aspect.

In the field of offshore wind power, a single-pile foundation is the simplest foundation form in structural form, and mainly comprises the single-pile foundation, an outer platform, an inner platform, a ship-leaning component, a ladder stand and a cathodic protection system. The cathodic protection system is a supplementary anticorrosion mode for an anticorrosion coating, is commonly a sacrificial anodic protection system, and adopts an electrochemical anticorrosion mode for installing active metal on a single-pile foundation, and because the anticorrosion mode has the defects of heavy metal pollution to marine environment, high construction cost, difficult monitoring of protection effect and the like, the possibility of being replaced by an impressed current cathodic protection system (ICCP) is provided, and the ICCP applies a protection current to the single-pile foundation through an impressed power supply to form a protection potential, thereby achieving the purpose of single-pile foundation anticorrosion.

ICCP consists of four major parts: the device comprises a potentiostat, an auxiliary anode, a reference electrode and a cable, wherein the potentiostat is arranged on an inner platform, the auxiliary anode and the reference electrode are generally arranged on and welded to a base of a pile body by means of flanges and are positioned underwater, during construction, a single-pile foundation is firstly sunk and piled, and when the pile is piled to a specified elevation, an outer platform, the inner platform, a berth member, a ladder stand and an ICCP are hoisted and arranged. It is seen that the installation of the auxiliary anode and the reference electrode of the ICCP is performed under water, and compared with the sacrificial anode cathodic protection system, the ICCP has outstanding advantages, but still has some problems to be solved:

1. the auxiliary anode and the reference electrode mounting base are welded on the pile body, and the welding work has certain influence on the strength of the pile body;

2. the underwater installation of the auxiliary anode and the reference electrode has the disadvantages of high difficulty, high labor intensity, high construction cost and difficult guarantee of installation quality;

3. after the auxiliary anode and the reference electrode are installed, an auxiliary anode cable and a reference electrode cable need to be connected to a constant potential rectifier, and after the auxiliary anode and the reference electrode are installed, an insulation test needs to be carried out on the cables, so that the labor intensity is high, and the cables are not easy to repair if the test fails;

4. the protection work of the auxiliary anode and the reference electrode cable is difficult to realize, and the cable is easy to damage after being soaked in seawater for a long time.

Aiming at the problems, in order to better exert the anticorrosion advantage of the ICCP and enable the ICCP to be better applied and popularized in the field of offshore wind power, an ICCP installation mode which is convenient to install, low in labor intensity and low in manufacturing cost is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the background art, the utility model discloses a novel single-pile foundation ICCP structure.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a novel single pile basis ICCP structure, including the single pile main part, outer platform, the inner platform, the cat ladder, lean on the ship component, be equipped with the potentiostat on the inner platform, be equipped with the second on the cat ladder and predetermine the steel pipe, lean on the inside first predetermined steel pipe that is equipped with of ship component, the lower extreme that leans on the ship component is equipped with the support, the erection point department of support is equipped with a plurality of auxiliary anode and reference electrode, the inside passageway that is equipped with of support, the auxiliary anode cable of being connected with auxiliary anode and the reference electrode cable of being connected with the reference electrode predetermine at support internal passage, auxiliary anode cable and reference electrode cable in the support internal passage pass first predetermined steel pipe and second and predetermine behind the steel pipe and be connected with the potentiostat on the inner platform.

The support is formed by welding a steel pipe and a connecting flange, a traction steel wire is arranged in the steel pipe, and the auxiliary anode cable and the reference electrode cable are arranged in the steel pipe of the support through the traction steel wire.

And the outer cable leakage between the ship leaning component and the ladder stand and the outer cable leakage between the ladder stand and the single-pile main body are respectively provided with a hose and a hose hoop.

The number of the auxiliary anodes is four, and the number of the reference electrodes is two.

Due to the adoption of the technical scheme, the utility model has the following advantages:

1. the auxiliary anode and the reference electrode are arranged on the ship-leaning component, so that the welding work on the single-pile main body is avoided, and the damage to the single-pile foundation is reduced;

2. the auxiliary anode and the reference electrode are arranged on the ship-alongside member and are arranged together with the ship-alongside member, the structure is simple, and the underwater installation work of the auxiliary anode and the reference electrode is omitted;

3. the auxiliary anode cable and the reference electrode cable are arranged by utilizing the ship-leaning component and the preset steel pipe of the ladder stand, so that the installation is simple, the safety and the reliability are realized, and the cable is well protected;

4. the auxiliary anode and the reference electrode are arranged on the ship-leaning component in a manufacturing factory, so that wiring inspection and insulation test can be completed in the manufacturing factory, and problems are easy to deal with when found out;

5. this utility model provides a novel single pile basis ICCP arranges the form and has simplified ICCP's installation work, has improved the efficiency of construction, has reduced construction cost.

Drawings

FIG. 1 is a front view of ICCP installation;

FIG. 2 is an ICCP installation left view;

FIG. 3 is a schematic structural view of a stent;

the labels in the figure are: 1. a single pile body; 2. an outer platform; 3. an inner platform; 4. climbing a ladder; 5. a docking member; 6. a support; 7. a potentiostat; 8. an auxiliary anode; 9. a reference electrode; 10. an auxiliary anode cable; 11. a reference electrode cable; 12. a hose; 13 a throat hoop; 14. a first preset steel pipe; 15. a second preset steel pipe; 16. an auxiliary anode mounting point; 17. and (4) mounting points of the reference electrode.

Detailed Description

For better understanding of the objects and advantages of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the scope of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

The utility model provides a novel single pile basis ICCP structure, including single pile main part 1, outer platform 2, inner platform 3, cat ladder 4, lean on ship component 5, be equipped with potentiostat 7 on the inner platform 3, steel pipe 15 is predetermine to the last second that is equipped with of cat ladder 4, lean on the inside first steel pipe 14 of predetermineeing that is equipped with of ship component 5, the lower extreme that leans on ship component 5 is equipped with support 6, the erection point department of support 6 is equipped with a plurality of auxiliary anode 8 and reference electrode 9, the inside passageway that is equipped with of support 6, auxiliary anode cable 10 be connected with auxiliary anode 8 and the reference electrode cable 11 of being connected with reference electrode 9 predetermine at support 6 internal passage, auxiliary anode cable 10 and reference electrode cable 11 in support 6 internal passage pass behind first predetermined steel pipe 14 and the second predetermined steel pipe 15 be connected with potentiostat 7 on inner platform 3.

The support 6 is formed by welding a steel pipe and a connecting flange, a traction steel wire is arranged in the steel pipe, and the auxiliary anode cable 10 and the reference electrode cable 11 are arranged in the steel pipe of the support 6 through the traction steel wire.

And a hose 12 and a hose clamp 13 are arranged at the cable outer leakage position between the ship-leaning component 5 and the ladder stand 4 and the cable outer leakage position between the ladder stand 4 and the single-pile main body 1, and are used for protecting cables.

As shown in fig. 1 and 2, the mono-pile foundation includes a mono-pile body 1, an outer platform 2, an inner platform 3, a ladder 4, and a mooring member 5, and after the mono-pile body 1 is driven to a predetermined elevation during construction, the outer platform 2, the inner platform 3, the ladder 4, and the mooring member 5 are mounted on the mono-pile body 1, and the mono-pile body 1 is connected to other portions by flanges. The ICCP comprises a potentiostat 7, an auxiliary anode 8, a reference electrode 9, an auxiliary anode cable 10 and a reference electrode cable 11, wherein the potentiostat 7 is arranged on the inner platform 3.

As shown in fig. 3, when the bracket 6 is manufactured, a traction steel wire for drawing the auxiliary anode cable 10 and the reference electrode cable 11 is reserved in the steel pipe. After the support 6 is manufactured, four auxiliary anodes 8 are installed on an auxiliary anode installation point 16, two reference electrodes 9 are installed on a reference electrode installation point 17, and an auxiliary anode cable 10 and a reference electrode cable 11 are pulled to the positions required by the drawing by using reserved steel wires. The bracket 6 integrated with the four auxiliary anodes 8, the two reference electrodes 9, the four auxiliary anode cables 10 and the two reference electrode cables 11 is welded below the berthing member 5, and then the contact insulation detection work is carried out, so that the underwater operation work is avoided, the work efficiency is improved, and the construction cost is reduced.

During construction, when the mono-pile body is piled 1 to a specified elevation, the mooring element 5 with the support 6 is connected to the mono-pile body 1 through a flange. Support 6 is formed by steel pipe and flange welding, it has predetermined steel pipe to lean on ship component 5 and cat ladder 4, wait to lean on ship component 5, after cat ladder 4 and inner platform 3 installation are accomplished, supplementary anode cable 10 and reference electrode cable 11 predetermine the steel pipe through first preset steel pipe 14 and second and predetermine potentiostat 7 on steel pipe 3, the cable is walked simultaneously, to outer leaky cable department installation hose 12 and larynx hoop 13 protection, supplementary anode cable 10 and reference electrode cable 11 wiring are carried out cable insulation test after accomplishing, ICCP's installation, work such as walking line and cable insulation test is mostly gone on more than manufacturing plant and sea, no underwater operation work.

This utility model is to assist anode 8 and reference electrode 9 to be installed in advance in keeping by ship component 5 in the manufacturing field, has solved the problem of installing auxiliary anode 8 and reference electrode 9 difficulty under water, utilizes the steel pipe of predetermineeing of keeping by ship component 5 and cat ladder 4 to lay auxiliary anode and reference electrode cable, and is not only simple but also safe and reliable.

The technical solutions and embodiments of the present invention are not limited, and the methods equivalent to the technical solutions and embodiments or having the same effects as the technical solutions and embodiments of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a novel single pile basis ICCP structure, includes single pile main part, outer platform, interior platform, cat ladder, leans on ship component, its characterized in that: be equipped with the potentiostat on the inner flat bench, be equipped with the predetermined steel pipe of second on the cat ladder, lean on the inside first predetermined steel pipe that is equipped with of ship component, the lower extreme that leans on the ship component is equipped with the support, the erection site department of support is equipped with a plurality of auxiliary anode and reference electrode, the inside passageway that is equipped with of support, the auxiliary anode cable of being connected with auxiliary anode and the reference electrode cable of being connected with the reference electrode are preset at support internal passage, auxiliary anode cable and reference electrode cable in the support internal passage pass and first predetermined steel pipe and the second is preset behind the steel pipe and is connected with the potentiostat on the inner flat bench.

2. The novel mono-pile foundation ICCP structure of claim 1, wherein: the support is formed by welding a steel pipe and a connecting flange, a traction steel wire is arranged in the steel pipe, and the auxiliary anode cable and the reference electrode cable are arranged in the steel pipe of the support through the traction steel wire.

3. The novel mono-pile foundation ICCP structure of claim 1, wherein: and the outer cable leakage between the ship leaning component and the ladder stand and the outer cable leakage between the ladder stand and the single-pile main body are respectively provided with a hose and a hose hoop.

4. The novel mono-pile foundation ICCP structure of claim 1, wherein: the number of the auxiliary anodes is four, and the number of the reference electrodes is two.