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Long-distance intertidal zone submarine cable landing laying construction method and system

A technology for submarine cables and intertidal zones, applied in cable laying equipment and other directions, can solve problems such as large frictional resistance, large traction force, and large cable cross-section, and achieve the effect of reducing frictional resistance, speeding up laying speed, and improving safety.

Active Publication Date: 2017-05-31
浙江启明电力集团有限公司海缆工程公司 +2
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the high voltage level and large load current, the cable section is large and the single weight is large, and the intertidal zone has a relatively complicated laying environment. It is very difficult to adopt the traditional laying method, the laying speed is slow, and the frictional resistance along the way is large. traction, and if the traction is too large, it is easy to cause damage to the cable body and the cable puller, which will affect the safety and reliability of the power cable operation

Method used

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  • Long-distance intertidal zone submarine cable landing laying construction method and system
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  • Long-distance intertidal zone submarine cable landing laying construction method and system

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Embodiment Construction

[0028] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] Involving devices such as Figure 1-4 shown.

[0030] The working method for the laying of long-distance intertidal submarine cable landing includes the following steps:

[0031] 1) Dig a transition ditch 3 in the transition area between the intertidal zone 4 and the submarine cable ship 1, and arrange the floating tire frame 11 in the transition ditch 3;

[0032] 2) Build double-layer scaffolding 9 from the front end of the transition ditch 3 to the direction of the substation 8;

[0033] 3) Set cable laying machines 5 one by one from the scaffold 9 at the front end of the transition ditch 3, and set a winch 6 in the cable outlet direction of each cable laying machine 5;

[0034] 4) A pulley 12 is arranged on the scaffold 9 along the direction of the cable 7, and the steering pulley is arranged on the scaffold 9 at the tur...

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Abstract

The invention discloses a long-distance intertidal zone submarine cable landing laying construction method and a system, and relates to a submarine cable landing laying method and a system; for the traditional laying method is very difficult, the laying speed is slow, the frictional resistance along the way is big, and method is easy to cause damage of a cable body and a cable traction head. The method includes steps that a submarine cable crosses through a cable guide frame on a submarine cable ship, and a wire rope at the front end is pulled to a winching machine; the winching machine is operated to pull the wire rope, thus the submarine cable is discharged; the discharged submarine cable is placed in the middle of a floating tire frame, and the lower part of the floating tier frame is suspended in the water; the front end of the submarine cable crosses through a cable distributor, is pulled and clamped by the cable distributor; after the submarine cable passes through the first cable distributor, the wire rope at the front end of the submarine cable is pulled to the next winching machine along the cable guiding device, and then pulled by the next winching machine; the submarine cable passes through a submarine cable scaffold buffer platform and then discharges forwards along the cable guiding device; the same operation as above is carried out until a transformer substation. The technical scheme is simple in method and fast in laying speed.

Description

technical field [0001] The invention relates to a method and system for landing and laying submarine cables, in particular to a method and system for laying and laying submarine cables in the long-distance intertidal zone. Background technique [0002] Due to the high voltage level and large load current, the cable section is large and the single weight is large, and the intertidal zone has a relatively complicated laying environment. It is very difficult to adopt the traditional laying method, the laying speed is slow, and the frictional resistance along the way is large. If the traction force is too large, it will easily cause damage to the cable body and the cable puller, which will affect the safety and reliability of the power cable operation. Contents of the invention [0003] The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the existing technical solutions, and to provide a long-distance intertida...

Claims

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Application Information

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IPC IPC(8): H02G1/10
CPCH02G1/10
Inventor 董益军张平丁兆冈张志刚袁舟龙徐爱国方军
Owner 浙江启明电力集团有限公司海缆工程公司
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