Jacket stretching type impressed current cable protection device
A technology of applied current and protection device, applied in the direction of insulated cables, cables, conductors, etc., can solve the problems of large jacket load affecting the stability of large jacket, increase in cost of large jacket, and increase in design strength of jacket, etc. Installation cost, simple structure, and the effect of reducing installation risk
Pending Publication Date: 2021-03-19
CNOOC ENERGY TECH & SERVICES +1
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Problems solved by technology
However, the existing sacrificial anode method cathodic protection device needs to use a large amount of aluminum alloy materials, which increases the jacket load
[0004] With the gradual deepening of sea areas and the increasingly complex structure of jackets, the cost of large jackets has increased significantly. If the existing sacrificial anode cathodic protection device is used on large jackets, there will be hundreds of tons of aluminum alloys It is wasted in vain, and the increase in the load of the large jacket due to the excessive use of sacrificial anodes will also affect the stability of the large jacket, which will increase the design strength of the jacket and increase the cost
In addition, as the original sacrificial anode device of the jacket is consumed, and the jacket is still in service, it is more difficult to add sacrificial anodes at this time
Method used
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Embodiment 1
[0029] Such as figure 1 , figure 2 As shown, in this embodiment, a jacket tensioning type applied current cable protection device is provided, which mainly includes a jacket 1, a potentiostat 2, a reference electrode 3, and also includes an auxiliary protection component, and the auxiliary protection component includes Waterproof cable 4, sacrificial anode 5 and sealing connector 6.
[0030] The potentiostat 2 is arranged on the top of the jacket 1, such as in the equipment room on the deck provided on the top of the jacket 1, and the input end of the potentiostat 2 is connected to a power source, such as a three-phase alternating current ; The output end of the potentiostat 2 is connected with several reference electrodes 3 .
[0031] Several reference electrodes 3 are arranged on the side of the bottom of the jacket 1; as a preferred solution, several reference electrodes 3 are evenly arranged around the center of the jacket 1, specifically, as When the top view section ...
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The invention belongs to the technical field of marine equipment corrosion prevention, and provides a jacket stretching type impressed current cable protection device. Corrosion prevention protectionon a jacket is carried out in a form of arranging an auxiliary protection assembly, and the problems of serious material consumption and high cost in a form of arranging a sacrificial anode and an anode leg in the prior art are completely avoided; and meanwhile, the load influence on the jacket when a cathode protection method is carried out on the jacket can be effectively reduced, the service life of the jacket is ensured, the whole device is simple in structure and convenient to install, the installation cost and the installation risk are reduced, and high economical efficiency is achieved.
Description
technical field [0001] The invention belongs to the technical field of marine equipment anticorrosion, and in particular relates to a jacket tensioning type applied current cable protection device. Background technique [0002] In offshore oil development projects, various platforms such as oil production platforms, living platforms, and central processing platforms need to be built offshore. The platform generally mainly includes: offshore engineering blocks, jackets as underwater support structures, and risers and other offshore engineering structures. These offshore engineering structures are generally steel structures. Since seawater is a very corrosive medium, if effective anti-corrosion measures are not taken, the steel jacket will be severely corroded. Jacket corrosion will shorten the service life of the platform and increase the cost of platform maintenance and repair. In order to prevent seawater from corroding the jacket, a jacket anticorrosion device, that is, ...
Claims
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Login to View More IPC IPC(8): C23F13/06H01B7/22H01B7/282
CPCC23F13/06H01B7/282H01B7/22C23F2213/31
Inventor 李辉贺海龙尹鹏飞郑虎斌潘华强杨文灯韩冰郑志建陈亚林
Owner CNOOC ENERGY TECH & SERVICES