CN110042802B - An anti-icing device for an offshore platform riser - Google Patents
An anti-icing device for an offshore platform riser Download PDFInfo
- Publication number
- CN110042802B CN110042802B CN201910347304.8A CN201910347304A CN110042802B CN 110042802 B CN110042802 B CN 110042802B CN 201910347304 A CN201910347304 A CN 201910347304A CN 110042802 B CN110042802 B CN 110042802B
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- CN
- China
- Prior art keywords
- bevel gear
- icing
- riser
- sleeve
- motor
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- 238000005728 strengthening Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 239000013535 sea water Substances 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
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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
- E02B17/0021—Means for protecting offshore constructions against ice-loads
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Gear Transmission (AREA)
Abstract
本发明提供了一种海洋平台立管防冰装置，属于冰区海洋工程领域；本发明包含电机、锥齿轮组、防冰套筒、立管；所述电机固定于海洋平台甲板下方；锥齿轮组一端安装在电机的转轴上，另一端安装在防冰套筒上端；防冰套筒通过轴承套在立管上并固定；本发明通过防冰套筒旋转实现在寒区海面对海冰的破碎；同时防冰套筒内部造浪板将带动立管周围海水一起运动，可防止立管周围海水结冰对其造成破坏，防止出现积冰现象；本发明具有可靠性高，易拆卸的优点。
The invention provides an anti-icing device for an offshore platform riser, which belongs to the field of marine engineering in ice areas; the invention comprises a motor, a bevel gear set, an anti-icing sleeve and a riser; the motor is fixed under the deck of the offshore platform; the bevel gear One end of the group is installed on the rotating shaft of the motor, and the other end is installed on the upper end of the anti-icing sleeve; the anti-icing sleeve is sleeved and fixed on the riser through the bearing; the invention realizes that the sea in the cold area faces the sea ice through the rotation of the anti-icing sleeve At the same time, the wave-making plate inside the anti-icing sleeve will drive the seawater around the riser to move together, which can prevent the seawater around the riser from freezing and causing damage to it and prevent ice accumulation; the invention has the advantages of high reliability and easy disassembly. .
Description
Technical Field
The invention relates to the field of ice area ocean engineering, in particular to an anti-icing device for a riser of an ocean platform.
Background
On the sea surface of a cold area, seawater is easy to freeze, and under the driving of wind and current, the seawater can move and damage the ocean engineering structure. The riser is the main connection between platform and seabed well head, consequently in the riser design of cold district, need consider the influence of sea ice to the tubular construction, avoids the sea water to freeze to cause destruction to the tubular construction to guarantee its normal continuation work. At the initial stage of design, the working condition of the design under consideration often has a certain difference with the actual condition, resulting in insufficient anti-icing capability of the stand pipe. Therefore, it is necessary to effectively protect the riser structure of the ocean platform.
Disclosure of Invention
The invention aims to provide an anti-icing device for a riser of an ocean platform. The seawater around the vertical pipe is prevented from being frozen, and floating ice around the vertical pipe is removed, so that the vertical pipe structure is effectively protected.
An anti-icing device for a riser of an ocean platform comprises a motor, a bevel gear set, an anti-icing sleeve and a riser; the motor is fixed below the deck of the ocean platform; one end of the bevel gear set is arranged on a rotating shaft of the motor, and the other end of the bevel gear set is arranged at the upper end of the anti-icing sleeve; the anti-icing sleeve is sleeved on the vertical pipe through a bearing and is fixed.
The surface of the anti-icing sleeve is also provided with a weight-reducing wave-resisting hole;
the inner side of the anti-icing sleeve is provided with an ocean wave making plate and a transverse reinforcing rib; the ocean wave making plate is vertically installed, and the transverse reinforcing ribs are fixed annularly;
the bevel gear group comprises a small bevel gear and a large bevel gear; the small bevel gear is arranged on a motor rotating shaft, the large bevel gear is fixedly arranged at the upper end of the anti-icing sleeve, and the small bevel gear is meshed with the large bevel gear;
the bearing is arranged in the anti-icing sleeve.
The invention has the beneficial effects that: an anti-icing device for a riser of an ocean platform is characterized in that sea ice is crushed on the sea surface in a cold region through rotation of an anti-icing sleeve; meanwhile, the wave making plates in the sleeve can drive the seawater around the vertical pipe to move together, so that the damage to the seawater around the vertical pipe due to icing can be prevented, and the ice accumulation phenomenon can be prevented. The device has the advantages of high reliability and easy disassembly.
Drawings
FIG. 1 is a schematic diagram of an anti-icing assembly for a riser of an ocean platform according to the present invention;
FIG. 2 is a cross-sectional view of an anti-icing sleeve of the anti-icing assembly of a marine platform riser of the present invention;
FIG. 3 is a partial enlarged view of the anti-icing device for the marine platform riser according to the present invention.
Detailed Description
The invention provides an anti-icing device for a riser of an ocean platform, which is mainly applied to the field of ocean platforms and can prevent the seawater around the riser from being frozen and remove broken ice near the riser. The invention comprises a motor, a bevel gear set and an anti-icing sleeve. The motor is installed and fixed below the deck of the ocean platform and provides rotating power for the whole device; the bevel gear set consists of two bevel gears with different sizes, the small bevel gear is arranged on a motor rotating shaft and meshed with the large bevel gear, and the large bevel gear is arranged at the upper end of the anti-icing sleeve; the surface of the anti-icing sleeve is provided with a weight-reducing wave-resisting hole, the upper cylindrical section is internally provided with a plurality of rotating bearings to ensure the stability of the device, the lower trapezoidal section of the device is positioned near a waterline, and the inner side of the device is provided with a reinforcing rib and a wave-making plate. The motor rotates, under the power transmission of the bevel gear set, the anti-icing sleeve connected with the large bevel gear rotates along with the bevel gear set, the wave making plate inside the sleeve drives the seawater around the vertical pipe to move together, the seawater around the vertical pipe can be prevented from being frozen to damage the anti-icing sleeve, and the ice accumulation phenomenon can be prevented.
The weight-reducing wave-proof holes can prevent the impact of sea waves and reduce the weight of the device, and the reinforcing ribs and the wave making plates are used for reinforcing the device and driving the sea water to move.
An anti-icing device for a riser of an ocean platform comprises a motor 1, a bevel gear set 2, an anti-icing sleeve 3 and a riser 5; the motor 1 is fixed below the deck 6 of the ocean platform; one end of the bevel gear set 2 is arranged on a rotating shaft of the motor 1, and the other end is arranged at the upper end of the anti-icing sleeve 3; the anti-icing sleeve 3 is sleeved on the stand pipe 5 through a bearing and fixed.
The surface of the anti-icing sleeve 3 is also provided with a weight-reducing wave-resisting hole 4;
the inner side of the anti-icing sleeve 3 is provided with an ocean wave making plate 7 and a transverse reinforcing rib 8; the ocean wave making plate 7 is vertically installed, and the transverse reinforcing ribs 8 are fixed annularly;
the bevel gear set 2 comprises a small bevel gear 2-1 and a large bevel gear 2-2; the small bevel gear 2-1 is arranged on a rotating shaft of the motor 1, the large bevel gear 2-2 is fixedly arranged at the upper end of the anti-icing sleeve 3, and the small bevel gear 2-1 is meshed with the large bevel gear 2-2;
the bearing is arranged in the anti-icing sleeve 3;
the anti-icing sleeve 3 is in a cone shape, the top end of the anti-icing sleeve is cylindrical, a mounting hole matched with the bearing is formed along the axis, and a threaded mounting hole for fixing the large bevel gear 2-2 is formed in the end face of the top end of the anti-icing sleeve.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An ocean platform riser anti-icing device is characterized by comprising a motor (1), a bevel gear set (2), an anti-icing sleeve (3) and a riser (5); the motor (1) is fixed below the deck (6) of the ocean platform; the bevel gear set (2) comprises a small bevel gear (2-1) and a large bevel gear (2-2); the small bevel gear (2-1) is mounted on a rotating shaft of the motor (1), the large bevel gear (2-2) is fixedly mounted at the upper end of the anti-icing sleeve (3), the small bevel gear (2-1) is meshed with the large bevel gear (2-2), the anti-icing sleeve (3) is sleeved on the vertical pipe (5) through a bearing and fixed, the surface of the anti-icing sleeve (3) is further provided with weight-reducing wave-proof holes (4), the upper part of the anti-icing sleeve (3) is a cylindrical section, and the lower part of the anti-icing sleeve is a circular truncated cone section; a plurality of bearings are arranged in the upper cylindrical section, mounting holes matched with the bearings are formed along the axis, and threaded mounting holes for fixing the large bevel gears (2-2) are formed in the end faces of the top ends of the bearings; the lower circular platform section is located near the waterline, and the lower circular platform section inboard is equipped with ocean wave making plate (7) and horizontal strengthening rib (8), ocean wave making plate (7) are vertical installation, horizontal strengthening rib (8) are the hoop fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347304.8A CN110042802B (en) | 2019-04-28 | 2019-04-28 | An anti-icing device for an offshore platform riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347304.8A CN110042802B (en) | 2019-04-28 | 2019-04-28 | An anti-icing device for an offshore platform riser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110042802A CN110042802A (en) | 2019-07-23 |
| CN110042802B true CN110042802B (en) | 2021-06-18 |
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ID=67279809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910347304.8A Active CN110042802B (en) | 2019-04-28 | 2019-04-28 | An anti-icing device for an offshore platform riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110042802B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832933B (en) * | 2021-10-12 | 2022-06-17 | 江苏科技大学 | Bionic offshore anti-icing and deicing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014113386A2 (en) * | 2013-01-21 | 2014-07-24 | Conocophillips Company | Jack-up drilling unit with tension legs |
| CN203222790U (en) * | 2013-02-26 | 2013-10-02 | 中国海洋石油总公司 | Ice-resisting structure used for ocean platform |
| CN207004440U (en) * | 2017-07-18 | 2018-02-13 | 西南石油大学 | A kind of one side sets the vortex-induced vibration of marine riser restraining device of spiral stream guidance wing plate |
| CN207944434U (en) * | 2018-01-05 | 2018-10-09 | 刘常春 | Lock gate |
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2019
- 2019-04-28 CN CN201910347304.8A patent/CN110042802B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110042802A (en) | 2019-07-23 |
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