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Submarine cable sealing device

A submarine cable and sealing device technology, applied to the cable inlet sealing device and other directions, can solve the problems that the cable and the sealing material are not easily separated, the sealing end cannot be reused, etc., and achieve the effect of improving resource utilization, avoiding pressure, and avoiding waste.

Active Publication Date: 2013-11-27
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a reusable submarine cable sealing device for the defect that the cable and the seal are not easy to separate in the related submarine cable sealing device, resulting in the non-reusable defect of the sealing end

Method used

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Embodiment Construction

[0023] In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] like figure 1 , figure 2 As shown, the present invention discloses a submarine cable sealing device, comprising a protective sleeve 1 , a sealing component 4 and at least one pressure compensation component 2 . The protective sleeve 1 includes an open end 1a for the end of the cable to penetrate; the other end can be an open end 1a or a closed end 1b, but it must be able to ensure that the submarine cable is sealed to avoid seawater infiltration, The other end in this embodiment is the closed end 1b.

[0025] The sealing assembly 4 is disposed inside or outside the open end 1a of the protective sleeve 1 to seal the open end 1a, and is preferably disposed inside the protective sleeve 1 in this embodiment. The sealing asse...

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Abstract

The invention discloses a submarine cable sealing device. The submarine cable sealing device comprises a protective sleeve, a sealing assembly and at least one pressure compensation assembly, wherein the protective sleeve comprises an open end allowing the end portion a cable to penetrate into, the sealing assembly is arranged at the open end of the protective sleeve to seal the open end, an airtight space used for accommodating insulating pressure-balancing media is defined inside the protective sleeve, at least one set of pressure compensation holes which is used for enabling the airtight space to be communicated with the outside world is formed in the protective sleeve, the pressure compensation holes are distributed on the circumference of the protective sleeve at intervals, the pressure compensation assembly is arranged inside the airtight space and comprises an elastic pressure compensation film, and the pressure compensation film covers the pressure compensation holes. The submarine cable sealing device can be separated from a submarine cable easily on the premise that the submarine cable is not damaged, and the problem that according to relevant technologies, a sealing device can not be used repeatedly after the sealing device is separated from the cable is solved.

Description

technical field [0001] The invention relates to a cable waterproofing device, in particular to a submarine cable sealing device. Background technique [0002] Submarine cables are wires wrapped in insulating material and laid on the seabed for telecommunication transmission. Since the submarine cables are laid on the seabed, more attention should be paid to the sealing and waterproofing of the cable ends than the cables erected on land. Because in the seabed of several kilometers, if the sealing of the submarine cables is not handled properly, the water pressure will cause seawater to penetrate into the unsealed cable ends. , resulting in reduced cable insulation and even damage to the cable. Therefore, the current submarine cables need to be sealed and waterproof before entering the sea. [0003] When the current submarine cable is sealed and waterproof, the end of the cable is usually sealed by pouring a sealant at the end of the cable. A technology that directly pours ...

Claims

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Application Information

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IPC IPC(8): H02G15/013
Inventor 原庆东阳建军冒家友乐钻刘义勇冯丽梅范志锋李小龙
Owner CHINA NAT OFFSHORE OIL CORP
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