KR-20260064232-A - Flating equipment with green water prevention sturcture

Abstract

A floating facility equipped with a greenwater prevention structure is disclosed. The floating facility includes a structure floating on the sea; and a greenwater prevention structure formed on the body of the structure to suppress greenwater on the structure by introducing seawater of wave heights that cause greenwater into the interior of the structure and then discharging it to the exterior.

Inventors

• 최용호

Assignees

• 삼성중공업 주식회사

Dates

Publication Date

20260507

Application Date

20241031

Claims (5)

1. Floating structure on the sea; A floating facility comprising a green water prevention structure formed on the body of the structure to suppress green water on the structure by introducing seawater of wave heights that cause green water into the interior of the structure and then discharging it to the exterior.
2. In paragraph 1, The above green water prevention structure is, Inlet units installed at one or more of the bow and stern sides of the structure to allow seawater to flow into the interior of the structure; Outlet units installed on the port and starboard sides, respectively, of the structure to allow seawater flowing into the interior of the structure through the inlet unit to be discharged to the outside; A main seawater pipeline having one end connected to the inlet unit above; and A floating facility comprising a branch seawater pipeline connecting the other end of the main seawater pipeline and each outlet unit.
3. In paragraph 2, The inlet unit and the outlet unit are provided with opening and closing doors for opening or closing the main seawater pipeline or the branch seawater pipeline, wherein A floating facility that controls the opening or closing operation of the opening and closing door by referring to one or more of a control signal provided from an operating system provided in the floating facility and a sensing signal provided from a pressure sensor installed adjacent to the inlet unit to detect the impact pressure of waves.
4. In paragraph 3, The above inlet unit further includes a rotating blade positioned behind the opening and closing door, wherein A floating facility in which the above-mentioned rotating blade is rotated by the control of the above-mentioned controller to accelerate the inflow of seawater into the above-mentioned main seawater pipeline by improving the suction force for the inflow of seawater.
5. In paragraph 3, The above inlet unit further includes a rotating blade positioned behind the opening and closing door, wherein The rotating blade and the generator are connected so that the rotational force of the rotating shaft of the rotating blade is transmitted to the rotor shaft of the generator, and A floating facility in which the rotating blade is rotated by the pressure of seawater flowing into the main seawater pipeline through the open inlet unit, and the rotational force of the rotating blade is transmitted to the rotor shaft so that the generator generates power.

Description

Floating equipment with green water prevention structure The present invention relates to a floating facility with a green water prevention structure. Floating facilities, such as offshore structures and vessels like FLNG and FPSO, are subjected to impacts caused by slamming—where parts of the hull strike the water surface forcefully upon encountering waves—which can lead to the generation of green water. Green water refers to waves that rise onto the deck and sweep across it, exposing the deck and superstructure to large amounts of seawater. Offshore structures such as FLNGs and FPSOs are moored using spread or one-point mooring systems and remain anchored at a fixed location in the sea for extended periods. During this time, waves may enter the bow and forward direction of the offshore structure, causing greenwater. When greenwater occurs, outfitting and other mechanical parts placed on the upper deck may suffer damage and flooding. Greenwater may also occur in the stern of the offshore structure. In addition, greenwater can be generated by waves encountered while a vessel is operating or anchored. Greenwater not only damages deck equipment but also reduces the vessel's stability, increasing the risk of capsizing. However, if high protective walls are installed on a ship to prevent the intrusion of greenwater, problems such as ventilation issues in the deck area and obstruction of the view toward the water surface may arise. Additionally, resistance increases during operation, leading to reduced operational efficiency, and a relatively excessive design is required to cope with increased external environmental loads. The matters described in the technical background section of this invention are for the purpose of understanding the background of the invention and cannot be concluded as prior art already known to a person with ordinary knowledge in the field to which this technology belongs. FIG. 1 is a drawing showing the external appearance of a floating facility to which a green water prevention structure according to one embodiment of the present invention is applied. FIG. 2 is a drawing illustrating the configuration of a green water prevention structure according to one embodiment of the present invention. FIG. 3 is a drawing for explaining the shape and operation of an inlet unit according to an embodiment of the present invention. FIG. 4 is a drawing for explaining the shape and operation of an outlet unit according to an embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Embodiments of the present invention will be described below with reference to the accompanying drawings. In the accompanying drawings, identical components are given the same reference numerals, and in the description of the embodiments, identical or corresponding components may be briefly described or redundant descriptions may be omitted. In the drawings, each component may be depicted in an exaggerated size for convenience of explanation and understanding, and it is obvious that the present invention is not limited to the size and proportion of the components depicted in the drawings. FIG. 1 is a drawing showing the external appearance of a floating facility to which a green water prevention structure according to one embodiment of the present invention is applied, and FIG. 2 is a drawing illustrating the configuration of a green water prevention structure according to one embodiment of the present invention. FIG. 3 is a drawing for explaining the shape and operation of an inlet unit according to one embodiment of the present invention, and FIG. 4 is a drawing for explaining the shape and operation of an outlet unit according to one embodiment of the present invention. Referring to FIG. 1, an inlet unit (120) and an outlet unit (125) are installed on the body of the floating facility (110) so as to be exposed to the outside. The inlet unit (120) and the outlet unit (125) can each be installed at a predetermined height above the waterline. The inlet unit (120) is normally kept closed, but when a high wave height that causes green water occurs, it is opened to allow seawater to flow into the body of the floating facility (110). It can be installed at the bow and stern of the floating facility (110), respectively. For convenience of distinction based on installation location, the inlet unit (120) may be referred to as a bow-side inlet unit (120a) installed at the bow of the floating facility (110) and a stern-side inlet unit (120b) installed at the stern of the floating facility (110). The bow-side inlet unit (