Offshore wind power generation device and construction method for offshore wind power generation device

The telescopic floating body section of the spar-type offshore wind turbine improves installation efficiency by allowing smaller boats to tow and expand the components at sea, enhancing workability and watertightness without large ships.

JP7750727B2Active Publication Date: 2025-10-07SHIMIZU CORP
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Patent Information

Application Number
JP2021202332
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-12-14
Publication Date
2025-10-07
Estimated Expiration
2041-12-14

AI Technical Summary

Technical Problem

Spar-type offshore wind turbines require complex and costly installation processes involving large ships and oceanographic condition dependency, necessitating improvements in construction efficiency.

Method used

A telescopic floating body section with inner and outer cylindrical members that allow for contraction during transportation and expansion at the installation site, enabling towing by smaller boats and eliminating the need for large ships, with sealing and fastening mechanisms for watertightness and stability.

Benefits of technology

Enhances construction efficiency by allowing smaller boats to tow the wind turbine components and simplifies installation through sealing and fastening methods, reducing the need for large ships and improving workability and watertightness.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide an offshore wind power generator which enables improvement of workability, and to provide a construction method of the offshore wind power generator.SOLUTION: An offshore wind power generator 100 includes: a windmill part 2 having a windmill which supplies power to a power generator in addition to the power generator; and a floating body part 1 supporting the windmill part 2. The floating body part 1 has: an outer member 11 having an outer cylinder part 116 formed in a cylindrical shape; and an inner member 12 at least partially housed in the outer cylinder part 116 and having an inner cylinder part 121 formed in a cylindrical shape. The floating body part 1 is configured so as to allow the inner member 12 to be moved relative to the outer member 11 by the inner cylinder part 121 sliding in the outer cylinder part 116 and to take a first attitude during transportation and take a second attitude, at which the floating body 1 is extended compared with the first attitude, at the time of completion of installation.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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    JP2012201218A

  • Offshore wind power generation facility and installation method of the same

    JP2018016302A

  • Floating body type structure and installation method for floating body type structure

    JP2021099021A

  • Self-installing column stabilized offshore wind turbine system and method of installation

    US10087915B1

  • Floating structure

    WO2014163032A1