KR-20260065656-A - Floating production storage offloading facility equipped with airbags and controlling method thereof

KR20260065656AKR 20260065656 AKR20260065656 AKR 20260065656AKR-20260065656-A

Abstract

A floating facility equipped with an airbag and a method for controlling the same are disclosed. A floating facility equipped with an airbag according to the present embodiment may include: a hull; an airbag installed on at least one of the side and bottom of the hull; a detection unit that detects whether the hull deviates from a reference position; and a control system that activates the airbag by receiving a tsunami signal from a tsunami warning system or receiving detection information from the detection unit.

Inventors

김문성
김주성

Assignees

삼성중공업 주식회사

Dates

Publication Date: 20260511
Application Date: 20241101

Claims (11)

hull; An airbag installed on at least one of the side and bottom of the hull; A detection unit that detects whether the above-mentioned hull deviates from a reference position; A floating facility equipped with an airbag, comprising: a control system that activates the airbag by receiving a tsunami signal from a tsunami warning system or receiving detection information from the detection unit.
In paragraph 1, The above sensing unit A mooring line that supports the hull, with one end connected to the hull and the other end connected to the seabed, and It includes a tension sensing unit for measuring the tension of the mooring line, and The above control system is A floating facility equipped with an airbag that activates the airbag by receiving tension information from the above tension sensing unit.
In paragraph 2, The above airbag is A first airbag installed at the lower part of one side of the hull, and A second airbag installed at the lower part of the other side of the hull, and A floating facility equipped with an airbag including a third airbag installed on the bottom of the hull.
In paragraph 3, The above control system is A floating facility equipped with airbags that operate by determining priority in the operating sequence between the first airbag, second airbag, and third airbag.
In paragraph 4, The above control system is A floating facility equipped with an airbag that activates the one adjacent to the shore among the first and second airbags mentioned above first.
In paragraph 5, The above control system is A floating facility equipped with an airbag that simultaneously activates the first airbag, the second airbag positioned far from the shore, and the third airbag.
In paragraph 5, The above control system is A floating facility equipped with an airbag that activates the third airbag between the activation of the first airbag and the activation of the second airbag.
In paragraph 2, The above control system is A floating facility equipped with an airbag that receives a tsunami signal from the above-mentioned tsunami warning system and activates the airbag when the tension value of the above-mentioned mooring line is lower than a preset tension value.
A method for controlling a floating facility equipped with an airbag according to any one of claims 1 to 8, The step of the control system receiving a tsunami signal from the tsunami warning system; The step of the control system receiving tension information from the tension sensing unit; A method for controlling a floating facility equipped with an airbag, comprising the step of the above control system activating the airbag.
In Paragraph 9, The step in which the above control system activates the airbag is A control method for a floating facility equipped with an airbag, comprising the step of comparing the tension value of the mooring line with a preset tension value.
In Paragraph 9, A method for controlling a floating facility equipped with airbags, wherein the airbags include a first airbag installed at the lower part of one side of the hull, a second airbag installed at the lower part of the other side of the hull, and a third airbag installed at the bottom of the hull.

Description

Floating production storage offloading facility equipped with airbags and controlling method thereof The present invention relates to a floating facility equipped with an airbag and a method for controlling the same, and more specifically, to a floating facility equipped with an airbag capable of protecting the hull by absorbing loads acting on the hull through airbags installed on the lower part of the side of the hull and the bottom of the hull of a floating facility moored in offshore waters during a tsunami, and a method for controlling the same. Natural gas is transported in a gaseous state through onshore or offshore gas pipelines, or liquefied into liquefied natural gas (LNG) or liquefied petroleum gas (LPG) and then stored and transported in LNG carriers or LPG carriers. Liquefied natural gas is obtained by cooling natural gas to extremely low temperatures (approximately -163°C), and because its volume is reduced to approximately 1/600 of its gaseous state, it is very suitable for long-distance transportation by sea. Recently, there has been a growing demand for floating facilities that drill and store LNG in deep seas, such as FLNG (floating liquid natural gas plant) and LNG FSRU (floating storage and regasification unit). Among these, FLNG is also called LNG FPSO (floating production storage and offloading) and is a vessel capable of extracting gas from deep sea, separating and storing LNG, and unloading it onto LNG carriers. FLNGs installed in offshore waters receive refined feed gas from onshore liquefaction facilities, liquefy it, and transport it via shuttle LNG vessels. While offshore FLNGs are relatively unaffected by waves, wind, and currents, they can still suffer damage to human lives and the structures themselves due to tsunamis originating inland or at sea. Figure 1 shows a conventional floating facility moored in the nearshore being pushed to the shore by a tsunami, and Figure 2 shows a conventional floating facility moored in the nearshore being pushed to the shore by a tsunami. Referring to Figures 1 and 2, conventional floating facilities moored in offshore waters had a problem in that when a tsunami occurred, they were pushed towards the shore by the tsunami, and the lower part of the hull's side collided with the seabed and was damaged, and the bottom of the hull collided with the shore and was damaged. Figure 1 shows a conventional floating facility being pushed ashore by a tsunami. Figure 2 shows a conventional floating facility being pushed away by a tsunami and settling on the shore. FIG. 3 shows a floating facility equipped with an airbag according to one embodiment of the present invention being pushed to the shore by a tsunami. FIG. 4 shows a floating facility equipped with an airbag according to one embodiment of the present invention being pushed by a tsunami and settling on the shore. FIG. 5 is a block diagram showing a floating facility equipped with an airbag according to one embodiment of the present invention. FIG. 6 is a flowchart showing the control process of a floating facility equipped with an airbag according to one embodiment of the present invention. FIG. 7 is a flowchart illustrating a control method for a floating facility equipped with an airbag according to an embodiment of the present invention. FIG. 8 is a flowchart showing the step of the control system activating the airbag in a control method for a floating facility equipped with an airbag according to one embodiment of the present invention. FIG. 9 is a flowchart showing the step of the control system activating the airbag in a control method for a floating facility equipped with an airbag according to an embodiment of the present invention. The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. The following embodiments are presented to sufficiently convey the concept of the present invention to those skilled in the art to which the present invention pertains. The present invention is not limited to the embodiments presented herein and may be embodied in other forms. In order to clarify the present invention, the drawings may omit the illustration of parts unrelated to the description and may slightly exaggerate the size of components to aid understanding. FIG. 3 illustrates a floating facility (10) equipped with an airbag according to an embodiment of the present invention being pushed toward the shore (SH) by a tsunami (TS). At this time, the control system (500) of the floating facility can activate the airbag (200) by receiving a tsunami signal from a tsunami warning system and receiving tension information from a tension detection unit (400). More specifically, the control system (500) can activate the airbag (200) that is adjacent to the shore (SH) first among the first airbag (210) and the second airbag (220). FIG. 4 illustrates a floating facility (10) equipped with an airbag according to an embodiment of the present invention