Waterproof pressure-bearing device of cable intermediate joint and installation method
A technology for cable intermediate joints and pressure-bearing devices, which is used in equipment for connecting/terminating cables, measuring devices, gas-filled/oil-filled cable accessories, etc. , laying difficulty and other problems, to achieve the effect of not being able to withstand high water pressure, simple structure and easy installation
Pending Publication Date: 2020-10-09
POWERCHINA HUADONG ENG COPORATION LTD
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Problems solved by technology
However, in the field of cable power transmission and distribution in deep water environment, there is still the problem that the cable intermediate joint cannot withstand high water pressure
Therefore, at present, when laying cables in the above-mentioned deep water environment, in order to avoid the occurrence of cable joints, the whole cable is usually used; There is a certain degree of difficulty
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[0020] This embodiment is a cable connection structure. Two cables 1 are connected through a cable intermediate joint 6. Corresponding to the cable intermediate joint 6, a waterproof pressure-bearing device for the cable intermediate joint 6 is provided. The waterproof pressure-bearing device connects the cable intermediate joint 6 wrap.
[0021] In this example, the waterproof pressure-bearing device has a waterproof pressure-bearing shell, which is divided into upper and lower symmetrical upper half shells 301 and lower half shells 302 in its diameter direction, and the upper half shell 301 and the lower half shell. 302 are fixedly connected by several bolts 10.
[0022] In this embodiment, inlet and outlet holes are provided at both ends of the waterproof pressure-bearing housing in the length direction, and the shape and size of the inlet and outlet holes match the section of the cable 1 . The waterproof pressure-bearing shell has a structure in which the middle is large ...
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The invention relates to a waterproof pressure-bearing device of a cable intermediate joint and an installation method. The invention aims to provide the waterproof pressure-bearing device of a cableintermediate joint and the installation method. According to a technical scheme of the invention, the waterproof pressure-bearing device of the cable intermediate joint is characterized by comprisinga waterproof pressure-bearing shell, the two ends of the waterproof pressure-bearing shell in the length direction are provided with inlet and outlet holes matched with the cross section of a cable inshape and size; the waterproof pressure-bearing shell is provided with an exhaust hole communicating with the interior of the waterproof pressure-bearing shell and a sealant pouring hole used for pouring a waterproof sealant into the shell, and the exhaust hole and the sealant pouring hole are provided with hole covers; and the waterproof pressure-bearing shell is formed by splicing an upper halfshell and a lower half shell, and the upper half shell and the lower half shell are fixedly connected through a plurality of bolts. The device is suitable for the field of underwater power transmission and distribution with cable intermediate joints needing to bear high water pressure (wherein P is smaller than or equal to 2.5 MPa).
Description
technical field [0001] The invention relates to a waterproof pressure-bearing device and an installation method of a cable intermediate joint. It is suitable for power transmission and distribution fields located underwater and where the cable intermediate joints need to withstand relatively high water pressure (P≤2.5MPa). Background technique [0002] In recent years, with the vigorous development of global industry, the field of underwater power transmission and distribution has developed rapidly. However, in the field of cable power transmission and distribution in deep water environment, there is still the problem that the cable intermediate joint cannot withstand high water pressure. Therefore, at present, when laying cables in the above-mentioned deep water environment, in order to avoid the occurrence of cable joints, the whole cable is usually used; There is a certain degree of difficulty. Contents of the invention [0003] The technical problem to be solved by ...
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IPC IPC(8): H02G15/24H02G1/14G01M13/00
CPCG01M13/00H02G1/14H02G15/24
Inventor 胡雄峰黄靖乾郑应霞邱绍平刘文辉方晓红钱瑭许志翔舒崚峰周淼汛高俊张宝勇
Owner POWERCHINA HUADONG ENG COPORATION LTD