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Installation method of semi-submersible barge crawler crane offshore large wind power generator

A technology of a wind turbine and an installation method, which is applied to the assembly of wind turbines, wind energy power generation, ships, etc., can solve the problems of low transportation safety factor, high construction cost, affecting construction safety, etc., so as to reduce installation cost, improve installation and The effect of transportation efficiency and safety assurance

Inactive Publication Date: 2019-08-27
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to investigations and new investigations, the installation of large offshore wind turbines at home and abroad generally adopts the overall hoisting method of a 10,000-ton large crane ship. This construction method has the following disadvantages: 1. The overall combination of large wind turbines is heavy and requires tens of thousands of Ton-level large-scale crane ships have high construction costs, which is not conducive to cost saving; 2. Difficult transportation, low transportation safety factor, and high cost; 3. Affect construction safety

Method used

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  • Installation method of semi-submersible barge crawler crane offshore large wind power generator
  • Installation method of semi-submersible barge crawler crane offshore large wind power generator
  • Installation method of semi-submersible barge crawler crane offshore large wind power generator

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Experimental program
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Effect test

Embodiment 1

[0035] Such as Figure 1 to Figure 4 As shown, the semi-submerged barge crawler crane includes a semi-submersible barge 1 and a crawler crane 2. The middle part of the semi-submersible barge 1 is welded and fixedly connected with two symmetrically arranged lower box girders 11 made of steel plates with a thickness of 20 mm. Both sides of the lower box girder 11 are fixedly connected with two corbels 12, and each corbel 12 is fixedly equipped with a hydraulic jack 13 with a stroke of 25 cm. The output end of the hydraulic jack 13 supports the crawler belt of the crawler crane 2. Each lower box beam 11 is fixedly connected with an upper box beam 14 using bolts of M20mm.

[0036] Both ends of the two upper box girders 14 are fixedly connected with track baffles 15 to prevent the tracks from running off, and the two upper box girders 14 are welded and fixedly connected with three parallel sets and welded by 125×10mm equilateral angle steel. Formed truss 16.

[0037] The crawler ...

Embodiment 2

[0040] Such as Figure 5 to Figure 7As shown, using the semi-submerged barge crawler crane in Embodiment 1 for the installation of large offshore wind-driven generators is carried out according to the following construction steps:

[0041] Step 1. First transfer the refitted semi-submersible barge crawler crane tugboat to the wind turbine stand;

[0042] Step 2. Bottom of the semi-submersible barge crawler hanger: anchoring and fixing in four directions on the semi-submersible barge crawler hanger;

[0043] Step 3. Loosen the pole support device of crawler crane 2;

[0044] Step 4. Adjust the level of the crawler crane 2: Use eight hydraulic jacks 13 to fine-tune to make it level;

[0045] Step 5. Use the semi-submersible barge crawler crane as the main crane to cooperate with the small floating crane 3 for installation;

[0046] Step 6, the hook of the semi-submerged barge crawler crane is fixed on the upper end of the first section of the tower 42 with a wire rope, and th...

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Abstract

The invention discloses an installation method of a semi-submersible barge crawler crane offshore large wind power generator, and belongs to the technical field of offshore wind power generator installation. The installation method comprises the following steps that firstly, a semi-submersible barge is transformed, upper box type beams and lower box type beams which are used for supporting a crawler crane are additionally arranged to form a crane supporting platform, the crawler crane is installed on the platform, eight hydraulic jacks are arranged on the lower box type beams of two crawler belts of the crawler crane to form a semi-submersible barge crawler crane, and a pulling rod supporting device is further arranged at the front part of a pulling rod of the crawler crane; and before a wind turbine tower cylinder is installed, the semi-submersible barge crawler crane is firstly moved to an installation position, the lifting rod supporting device of the crawler crane is loosened, thesemi-submersible barge is fixed at the bottom, the crawler crane is finely adjusted to a horizontal position by using the eight hydraulic jacks, and then the semi-submersible barge crawler crane is used for being matched with a lifting small floating crane to complete the assembly and installation of the fan tower cylinder, an engine room and an impeller. Therefore, the problem of installation ofthe offshore large wind power generator is solved, the installation and transportation efficiency is improved, the installation cost is greatly reduced, and the construction safety is ensured.

Description

technical field [0001] The invention belongs to the technical field of installation of offshore wind power generators, and in particular relates to an installation method of a semi-submerged barge crawler hoisting a large offshore wind power generator. Background technique [0002] With the increasing scarcity of world energy and the rapid development of science and technology, coupled with people's requirements for environmental protection, people are trying to find a renewable, environmentally friendly and clean green energy that can replace oil, natural gas and other energy. Wind energy is currently the most promising new type of energy. It is an inexhaustible energy source and a clean, pollution-free, renewable green energy source. [0003] my country is the country with the highest share of wind power resources in the world, and it is also one of the first countries in the world to utilize wind energy. According to statistics, the total amount of wind energy resources a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/10B63B35/44
CPCB63B35/44B63B2035/446F03D13/10Y02E10/72Y02E10/727
Inventor 丁效武陶久敏丁志文
Owner CHINA MCC17 GRP
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