KR20170001292U - Gravity-based structure - Google Patents

Gravity-based structure Download PDF

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Publication number
KR20170001292U
KR20170001292U KR2020150006553U KR20150006553U KR20170001292U KR 20170001292 U KR20170001292 U KR 20170001292U KR 2020150006553 U KR2020150006553 U KR 2020150006553U KR 20150006553 U KR20150006553 U KR 20150006553U KR 20170001292 U KR20170001292 U KR 20170001292U
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KR
South Korea
Prior art keywords
shaft
rotating body
coupled
sea
gravity type
Prior art date
Application number
KR2020150006553U
Other languages
Korean (ko)
Inventor
서윤덕
연동윤
전석희
오영태
Original Assignee
대우조선해양 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR2020150006553U priority Critical patent/KR20170001292U/en
Publication of KR20170001292U publication Critical patent/KR20170001292U/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0017—Means for protecting offshore constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0017—Means for protecting offshore constructions
    • E02B17/003—Fenders
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • E02B17/024—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform shock absorbing means for the supporting construction

Abstract

A gravity type sea structure according to the present invention comprises a first shaft fixed to an upper surface of a caisson faced to the sea floor and an upper end exposed to the upper part of the sea level, an upper portion extending upward from an upper end of the first shaft, A second shaft extending from an upper portion of the second shaft and having a diameter larger than that of the second shaft and having an inner installation space for producing crude oil and natural gas; And a rotating body that is coupled to the outer periphery of the second shaft and rotates when an external force acts to avoid collision of the floating body.

Description

{GRAVITY-BASED STRUCTURE}

More particularly, the present invention relates to a gravity type offshore structure, more particularly, to provide a rotating body at sea level so as to avoid impact and wear transmitted to the shaft by avoiding collision through rotation of the rotating body when the float collides with the side surface The present invention relates to a gravity type offshore structure capable of improving the durability by using a metal rotating body.

Generally, a gravity-based structure (GBS) is made mainly of concrete, which is naturally fixed at a fixed position by being placed on the sea floor by its own weight.

In this gravity type offshore structure, a caisson with an installation space is formed. In the caisson installation space, an oil storage tank is installed. On the bottom surface of the caisson, a skirt skirt).

The gravity type offshore structure is dried in the dry dock or offshore, then buoyed by its own buoyancy, towed to the construction site, and installed in the seabed by injecting seawater into the caisson.

However, when the conventional gravity type offshore structure is installed on the pole or the like, ice (drift ice) or ice plate (ice sheet) drifting on the sea surface may collide with the surface to damage the surface of the shaft or cause abrasion. The strength of the shaft may be lowered.

Prior art relating to the present invention is Korean Patent Laid-Open No. 10-2015-0023161 (Mar. 05, 2015), which discloses a gravity type offshore structure.

The object of the present invention is to provide a rotating body at the sea level so as to avoid impact and wear transmitted to the shaft by avoiding collision through rotation of the rotating body when the floating body collides with the side surface, To provide a gravity type offshore structure capable of improving durability.

The gravity type offshore structure according to the present invention comprises a first shaft fixed to a lower surface of a caisson faced to a sea floor and an upper end exposed to the upper part of the sea level and an upper portion extending upward from an upper end of the first shaft, A second shaft extending from an upper portion of the second shaft and having a diameter larger than that of the second shaft and having an inner installation space for producing crude oil and natural gas; And a rotating body that is coupled to the outer periphery of the second shaft and rotates when an external force acts to avoid collision of the floating body.

The rotating body includes a cylindrical fixed portion in which the second shaft is vertically penetratedly coupled to the inner hollow and a second fixed portion that is coupled to the outer periphery of the fixed portion and rotates by an external force with reference to the fixed portion, And a ball member rotatably inserted along the interval between the rotary part and the fixing part so that the rotary part is slidably rotated by the external force.

Preferably, the second shaft and the rotating body are positioned at a height of the sea surface.

Preferably, the rotating body is a ball bearing whose inner diameter is coupled to the outer circumference of the second shaft in a state where the rotating body is located at a sea level.

Also, it is preferable that the rotating body is made of stainless steel.

Preferably, the rotating body has a larger outer diameter than the first shaft and the third shaft.

It is preferable that a buffer member is further provided between the second shaft and the rotating body so as to buffer impact transmitted from the rotating body.

In the present invention, a rotating body is installed at a height of sea level so that impact and wear transmitted to the shaft can be avoided by avoiding collision through rotation of the rotating body when the floating body collides with the side surface. So that the durability can be improved.

1 is a perspective view showing a gravity type offshore structure according to the present invention.
2 is a front sectional view showing a gravity type offshore structure according to the present invention.
FIG. 3 is a plan sectional view for showing a gravity type offshore structure according to the present invention. FIG.
4 is a plan view for showing a state in which a buffer member is further applied to a gravity type offshore structure according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, To the person having the invention, and this invention is only defined by the scope of the claims.

Further, in the description of the present invention, if it is judged that related art or the like may obscure the gist of the present invention, a detailed description thereof will be omitted.

FIG. 1 is a combined perspective view showing a gravity type offshore structure according to the present invention, FIG. 2 is a front sectional view showing a gravity type offshore structure according to the present invention, and FIG. 3 is a cross sectional view showing a gravity type offshore structure according to the present invention. Flat section.

1 to 3, a gravity type offshore structure according to the present invention includes a first shaft 100, a second shaft 200, a third shaft 300, and a rotating body 400 .

The first shaft 100 is made of concrete or the like and has a cylindrical shape or the like and a lower end of the first shaft 100 is connected to a caisson 50, As shown in FIG.

The upper end of the first shaft 100 may be exposed to the upper part of the sea surface 10 and the lower end of the first shaft 100 may be integrally coupled to the upper surface of the caisson 50.

The second shaft 200 may extend upward from the upper end of the first shaft 100 and the second shaft 200 may have a cylindrical shape corresponding to the first shaft 100.

Here, the second shaft 200 may be integrally formed using the same material as that of the first shaft 100, and the second shaft 200 may be formed to have a diameter smaller than that of the first shaft 100 .

Of course, the diameter, the shape, and the upper and lower widths of the second shaft 200 can be variously applied according to the diameter, the shape, and the vertical width of the rotating body 400 to be described later.

The third shaft 300 may extend upward from the upper end of the second shaft 200 and the third shaft 300 may have a cylindrical shape corresponding to the second shaft 200.

Here, the third shaft 300 may be formed integrally with the first shaft 100 and the second shaft 200 using the same material.

The third shaft 300 may have a larger diameter than the second shaft 200 and the diameter of the third shaft 300 may be the same as or different from the diameter of the first shaft 100. [ have.

The upper end of the third shaft 300 is exposed to the upper part of the sea surface 10 and the crude oil and natural gas production equipment 40 such as a tank or a crane is installed inside the third shaft 300. An installation space 310 is formed.

In addition, a separate reinforcing structure (not shown) may be additionally installed in the third shaft 300, the second shaft 200, and the first shaft 100.

The rotating body 400 is coupled to the outer circumference of the second shaft 200 such that the second shaft 200 is rotated while avoiding the floating body 30 such as drift ice or ice sheet.

2 and 3, the rotating body 400 may include a stationary portion 410, a rotating portion 420, and a ball member 430. As shown in FIG.

The fixing part 410 has a hollow 411 formed therein and the second shaft 200 is vertically penetrated through the hollow 411.

Here, the fixing portion 410 may have a cylindrical shape corresponding to the second shaft 200, and may be manufactured using a metal material having excellent strength and resistance to water.

The rotation part 420 is coupled to the outer periphery of the fixing part 410 with a larger diameter and is coupled to the outer periphery of the rotation part 420 so as to be horizontally rotatable.

Here, the rotation unit 420 may have the same cylindrical shape as the rotation unit 420, and the rotation unit 420 may be made of a metal material.

To this end, the rotating body 420 can be manufactured using stainless steel having excellent strength and water resistance.

When the floating member 30 such as the drift ice 30 or the ice plate collides with the outer surface of the rotation unit 420, the rotation unit 420 rotates about the vertical rotation center C of the fixing unit 410 Can be rotated.

At this time, the rotation part 420 is rotated along the direction of impact with respect to the rotation center C by the external force that the suspension 30 impinges, thereby avoiding the suspension 30 to avoid impact and abrasion .

Accordingly, the impact applied from the suspension 30 is not directly transmitted to the second shaft 200, so that the second shaft 200 and the portion connected to the second shaft 200 can be prevented from being damaged or worn by the impact .

The ball member 430 is rotatably inserted along the interval between the fixing portion 410 and the rotation portion 420 so that the rotation portion 420 is slidably rotated by an external force.

Here, the ball member 430 has a spherical shape, and the ball member 430 can be made of a metal ball, and the number and diameter of the ball member 430 can be variously applied.

It is preferable that the rotating body 400 is positioned at the height of the sea surface 10 so that the floating body 30 floating on the sea surface 10 can be contacted.

At this time, a part of the rotating body 400 is positioned in a state of being locked to the sea surface 10, and the remaining part of the rotating body 400 may be exposed to the upper part of the sea surface 10.

That is, the rotating body 400 may be a ball bearing structure in which the inner diameter of the rotating body 400 is coupled to the outer circumference of the second shaft in a state of being positioned at sea level.

4, the buffer member 500 may be further coupled between the second shaft 200 and the rotating body 400. In the gravity type offshore structure according to the present invention,

The shock absorbing member 500 can absorb an impact transmitted from the rotating body 400 between the second shaft 200 and the rotating body 400.

Here, the buffer member 500 may be made of a material such as synthetic resin or rubber having a certain elastic force, and may be applied in a ring shape so as to be coupled to the outer circumference of the second shaft 200.

Therefore, since the shock absorbing member 500 absorbs the shock transmitted from the rotating body 400, the impact applied from the outside is not transmitted to the second shaft 200, It is possible to prevent the connected portion from being broken or worn.

As a result, in the present invention, the rotating body 400 is provided at the sea level so that collision and abrasion can be avoided through rotation of the rotating body 400 when the floating body 30 collides with the side surface, It is possible to minimize breakage and abrasion due to the impact transmitted to the shaft 200 and to improve the durability by using the rotating body 400 made of a metal.

Although specific embodiments have been described with respect to the gravity type offshore structure of the present invention, it is apparent that various modifications are possible within the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the embodiments described, but should be determined by the scope of claims for utility model registration as well as the claims for utility model registration described below.

That is, it should be understood that the above-described embodiments are illustrative and non-restrictive in all respects, and the scope of the present invention is indicated by the scope of claims for utility model registration described below rather than the detailed description. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10: Sea surface 20: Sea bottom surface
30: Float 40: Production equipment
50: Caisson 100: 1st shaft
200: second shaft 210: mounting surface
300: Third shaft 310: Installation space
400: rotating body 410: fixed portion
420: rotating part 430: ball member
500: buffer member C: rotation center

Claims (6)

A first shaft fixed to an upper surface of a caisson mounted on the sea floor and exposed at an upper portion of the sea surface;
A second shaft extending upward from an upper end of the first shaft and having a smaller diameter than the first shaft;
A third shaft extending from an upper portion of the second shaft, the third shaft being formed with a larger diameter than the second shaft, the oil and natural gas production equipment being installed in the internal installation space; And
And a rotating body that is coupled to the outer periphery of the second shaft and rotates when an external force acts to avoid collision of the floating body. The method according to claim 1,
The rotating body includes:
A cylindrical fixed portion through which the second shaft is vertically penetrated into the inner hollow,
A rotation part coupled to the outer periphery of the fixing part and adapted to avoid collision of the suspension with an external force based on the fixing part,
And a ball member rotatably inserted along the interval between the rotation unit and the fixing unit, and configured to allow the rotation unit to slide and rotate by an external force. The method according to claim 1,
And the second shaft and the rotating body are connected to each other,
And is located at a height of sea level
The rotating body includes:
And a ball bearing whose inner diameter is coupled to the outer periphery of the second shaft in a state of being positioned at sea level. The method according to claim 1,
The rotating body includes:
Characterized in that the gravity type structure is made of stainless steel. The method according to claim 1,
The rotating body includes:
Wherein the outer surface is formed with a larger diameter than the first shaft and the third shaft. The method according to claim 1,
Between the second shaft and the rotating body,
And a shock absorbing member for absorbing shock transmitted from the rotating body is further coupled to the gravity type water structure.
KR2020150006553U 2015-10-06 2015-10-06 Gravity-based structure KR20170001292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150006553U KR20170001292U (en) 2015-10-06 2015-10-06 Gravity-based structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150006553U KR20170001292U (en) 2015-10-06 2015-10-06 Gravity-based structure

Publications (1)

Publication Number Publication Date
KR20170001292U true KR20170001292U (en) 2017-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020150006553U KR20170001292U (en) 2015-10-06 2015-10-06 Gravity-based structure

Country Status (1)

Country Link
KR (1) KR20170001292U (en)

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