CN110386227B - Roll, pitch and heave decoupling and connecting mechanism for connecting ice region nuclear power platform - Google Patents
Roll, pitch and heave decoupling and connecting mechanism for connecting ice region nuclear power platform Download PDFInfo
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- CN110386227B CN110386227B CN201910657838.0A CN201910657838A CN110386227B CN 110386227 B CN110386227 B CN 110386227B CN 201910657838 A CN201910657838 A CN 201910657838A CN 110386227 B CN110386227 B CN 110386227B
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- nuclear reactor
- supporting platform
- reactor supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B21/502—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers by means of tension legs
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
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- 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
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4446—Floating structures carrying electric power plants for converting nuclear energy into electric energy
Abstract
The invention discloses a roll and pitch heave decoupling and connecting mechanism for connecting a nuclear power platform in an ice region. The nuclear reactor supporting platform can be connected with the environment bearing platform which are separated from each other, so that the impact of the motion of the environment bearing platform on the nuclear reactor supporting platform is weakened, the nuclear reactor supporting platform has good hydrodynamic performance, and the safety of a nuclear reactor is ensured. The invention is designed aiming at the operating environment condition of the nuclear power platform in the ice region of the ocean, the platform structure can well resist ice load, and the design of the mooring system and the connecting mechanism can skillfully restrict the six-degree-of-freedom motion of the nuclear reactor supporting platform, so that the nuclear reactor supporting platform has good stability and hydrodynamic performance, the safety of the nuclear reactor is ensured, and the adaptability of the nuclear power platform in the ice region under extreme sea conditions is improved.
Description
Technical Field
The invention belongs to the field of ice region ocean engineering, and particularly relates to a rolling and pitching heave decoupling and connecting mechanism for connecting a separated ice region nuclear power platform.
Background
With the global warming, the arctic sea ice is melted rapidly, and a conventional navigable water area appears in summer. Under the background of the continuous deep development of the economic globalization and the regional integration, the value of the arctic in the aspects of strategy, economy, scientific research, environmental protection, navigation channels, resources and the like is continuously improved, and the development and utilization of the arctic navigation channels and the resources can have great influence on the energy strategy and the economic development of China. The ice region nuclear power platform is used as a polar region development foundation and important energy supply engineering equipment, can provide sufficient and stable energy, has little influence on the environment, has extremely high safety and great application prospect, and related problems of the ice region nuclear power platform become hot spots of domestic and foreign research. The safety problem of the nuclear reactor is an important problem to be solved urgently by a nuclear power platform in an ice region, and the invention is provided for ensuring the safety of the nuclear reactor supporting platform.
The performance requirements of a nuclear reactor support platform include two categories. The first is to ensure the floatability, stability and sinking resistance in still water; and the second type is to ensure the motion performance and the structural strength performance under the action of environmental loads such as sea wind, sea waves, ocean currents, sea ice, earthquakes and the like. The design of the ice region nuclear power platform connecting mechanism is carried out on the premise of ensuring the performance safety.
In order to ensure the safe operation of the nuclear reactor, very stable working conditions need to be provided, namely, very strict requirements on the stability and the movement performance of the nuclear reactor supporting platform are required. Under the action of severe environment load, including wave, wind and flow combined action and ice, wind and flow combined action, six-degree-of-freedom motion response of a nuclear reactor supporting platform needs to be very small, so that the safety of a nuclear reactor can be guaranteed, and the existing mooring system cannot meet the harsh requirement.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a decoupling and connecting mechanism for connecting a separated ice region nuclear power platform in a rolling and pitching heave mode according to the operating environment and requirements of an ocean ice region nuclear reactor supporting platform, and the safety of the nuclear reactor supporting platform can be guaranteed.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a roll and pitch and heave and swing decoupling zero coupling mechanism that is used for ice district nuclear power platform to connect, this roll and pitch and heave and swing decoupling zero coupling mechanism that swings includes horizontal ring 1, rotation axis 2, sleeve 3, pulley 4, slide 5, antifriction bearing 6, bearing locking cover 7, antifriction bearing stopper 8, pulley stopper 9, auxiliary device, antifriction bearing stopper 8 be locking device, pulley stopper 9 be arresting gear, auxiliary device include fender 10 and mooring line 11.
The rolling and pitching heave decoupling and connecting mechanism can enable a reactor supporting platform 12 and an environment bearing platform 13 which are separated from each other to be connected, the reactor supporting platform 12 is moored by tension legs, so that the motions (heave, roll and pitch) outside the horizontal plane of the platform are small, and the environment bearing platform 13 is in a four-point mooring mode and is mainly used for restraining the motions (pitch, roll and yaw) in the horizontal plane.
The nuclear reactor supporting platform 12 is cylindrical, and two rolling bearings 6 are symmetrically arranged in the middle of the cylindrical surface of the nuclear reactor supporting platform; the inner side and the outer side of the horizontal ring 1 are provided with four rotating shafts 2 which are distributed at intervals of 90 degrees, the axial direction of each rotating shaft 2 is overlapped with the radial direction of the horizontal ring 1, and the two rotating shafts 2 which are positioned on the same diameter are arranged on the inner side of the horizontal ring 1; two further rotary shafts 2 are mounted outside the horizontal ring 1. And a fender 10 is arranged on the other side of each mounting point of the rotating shaft 2 on the horizontal ring 1. Two rolling bearings 6 on the nuclear reactor supporting platform 12 are mounted on the rotating shaft 2 on the inner side of the horizontal ring 1 through a bearing locking sleeve 7, and a fender 10 correspondingly mounted with the two rotating shafts 2 is supported on the inner surface of the sleeve 3; the mooring cables 11 are flexible mooring cables, four groups are arranged at intervals of 90 degrees, each group comprises four mooring cables 11, one ends of the four mooring cables 11 of each group are arranged on the same high line of the outer surface of the cylindrical surface of the nuclear reactor supporting platform 12 at equal intervals, the other ends of the four mooring cables 11 of each group are arranged on the same high line of the inner surface of the sleeve 3 at equal intervals, and the external platform is prevented from driving the nuclear reactor supporting platform 12 to have overlarge swing amplitude under the limit condition, so that the external platform impacts the nuclear reactor supporting platform 12; two rolling bearings 6 are symmetrically arranged in the middle of the inner surface of the sleeve 3, the rolling bearings 6 are arranged on the rotating shaft 2 outside the horizontal ring 1 through a bearing locking sleeve 7, and a fender 10 correspondingly arranged with the two rotating shafts 2 is supported on a nuclear reactor supporting platform 12; each of the four rolling bearings 6 is provided with a rolling bearing brake 8 for braking the rolling bearing 6 during towing; four groups of pulley systems are symmetrically arranged on the outer side of the sleeve 3, and each pulley system comprises 5 pulleys 4; the pulley brake 9 is arranged on a support rod of the pulley 4 and used for braking the pulley 4 during towing; four slideways 5 are symmetrically arranged on the inner side of the environment bearing platform 13; the pulley 4 is mounted in a slideway 5.
The roll and pitch heave decoupling and connecting mechanism transmits the motion in the horizontal plane, so that the external platform limits the motion of three degrees of freedom in the horizontal plane of the internal platform.
The roll, pitch and heave decoupling and connecting mechanism does not transfer roll, pitch and heave motions, namely the roll, pitch and heave motions of the external platform do not affect the internal platform.
The roll, pitch and heave decoupling and connecting mechanism separates the roll, pitch and heave motions of the inner platform and the outer platform, allows a certain degree of relative motion to occur, and weakens the impact of the motion of the environment bearing platform 13 on the nuclear reactor supporting platform 12.
The locking device can limit the action of the rolling bearing 6 through the rolling bearing brake 8 during towing, and the braking device can limit the action of the pulley 4 through the pulley brake 9 during towing, so that the inner platform and the outer platform are fixed, and the problem of stability during mooring when the tension leg is not installed on the inner platform in the actual towing process is solved.
The auxiliary device makes the inner platform be connected with sleeve 3 through arranging four fenders 10 and four groups of sixteen mooring ropes 11 altogether to be connected with the outer platform, prevent that the outer platform from driving sleeve 3 under the extreme condition and sway the range too big, thereby striking inner platform, increase the security of system.
The invention has the beneficial effects that: the invention aims at the environmental conditions and the self-operation requirements of the nuclear reactor supporting platform 12 in the ocean ice region. The decoupling and connecting mechanism for the rolling, pitching, heaving and swinging can well restrain the movement of the nuclear reactor supporting platform 12 in three degrees of freedom, ensure the safety of the nuclear reactor and improve the adaptability of the nuclear power platform in the ice region under extreme sea conditions. The invention can be applied to the marine environment in ice regions and can ensure the safe operation of the nuclear reactor support 12 platform.
Drawings
FIG. 1 is a view showing the effect of installation of the present invention
FIG. 2 is a top view of the installation effect of the present invention;
FIG. 3 is a three-dimensional view of a horizontal ring;
FIG. 4 is a three-dimensional view of the sleeve;
FIG. 5 is a three-dimensional view of a nuclear reactor support platform;
FIG. 6 is a three-dimensional view of an environmental load-bearing platform;
FIG. 7 is a three-dimensional view of the auxiliary device;
in the figure, 1 is a horizontal ring; 2, rotating the shaft; 3, sleeving a sleeve; 4, a pulley; 5, a slideway; 6 rolling bearings; 7 bearing locking sleeve; 8 rolling bearing brake; 9 a pulley brake; 10, protecting the side; 11 mooring lines; a nuclear reactor support platform 12; the environment carries a platform 13.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in figures 1 and 2, the invention relates to a rolling and pitching heaving decoupling and connecting mechanism for connecting a separated ice region nuclear power platform, which is used for the ice region nuclear power platform (Chinese patent invention No. ZL201710906994.7), and comprises a horizontal ring 1, a rotating shaft 2, a sleeve 3, a pulley 4, a slideway 5, a rolling bearing 6, a bearing locking sleeve 7, a rolling bearing brake 8, a fender 10 and a mooring cable 11. The rolling and pitching heave decoupling and connecting mechanism can enable a reactor supporting platform 12 and an environment bearing platform 13 which are separated from each other to be connected, the reactor supporting platform 12 is moored by tension legs, so that the motions (heave, roll and pitch) outside the horizontal plane of the platform are small, and the environment bearing platform 13 is in a four-point mooring mode and is mainly used for restraining the motions (surge, roll and pitch) in the horizontal plane.
As shown in fig. 5, the nuclear reactor support platform 12 is cylindrical, and two rolling bearings 6 are symmetrically arranged in the middle of the cylindrical surface;
as shown in fig. 3, four rotating shafts 2 are installed inside and outside the horizontal ring 1, and are distributed at intervals of 90 °, the axial direction of the rotating shafts 2 coincides with the radial direction of the horizontal ring 1, wherein two rotating shafts 2 on the same diameter are installed inside the horizontal ring 1; the other two rotating shafts 2 are arranged outside the horizontal ring 1; a fender 10 is arranged on the other side of each mounting point of the rotating shaft 2 on the horizontal ring 1; two rolling bearings 6 on a nuclear reactor supporting platform 12 are installed on the rotating shaft 2 on the inner side of the horizontal ring 1 through a bearing locking sleeve 7, and a fender 10 installed corresponding to the two rotating shafts 2 is supported on the inner surface of the sleeve 3;
as shown in fig. 7, the mooring lines 11 are flexible mooring lines, and four groups are provided, wherein the four groups are installed at intervals of 90 degrees, each group includes four mooring lines 11, one end of each group of four mooring lines 11 is installed on the same height line of the outer surface of the cylindrical surface of the nuclear reactor support platform 12 at equal intervals, and the other end of each group of four mooring lines 11 is installed on the same height line of the inner surface of the sleeve 3 at equal intervals, so that the outer platform is prevented from driving the sleeve 3 to swing too much under the limit condition, and then the inner platform is prevented from;
as shown in fig. 4, two rolling bearings 6 are symmetrically installed in the middle of the inner surface of the sleeve 3, the rolling bearings 6 are installed on the rotating shaft 2 outside the horizontal ring 1 through a bearing locking sleeve 7, and a fender 10 installed corresponding to the two rotating shafts 2 is supported on a nuclear reactor supporting platform 12; each of the four rolling bearings 6 is provided with a rolling bearing brake 8 for braking the rolling bearing 6 during towing; four groups of pulley systems are symmetrically arranged on the outer side of the sleeve 3, and each pulley system comprises 5 pulleys 4; the pulley brake 9 is arranged on a support rod of the pulley 4 and used for braking the pulley 4 during towing;
as shown in fig. 6, four slideways 5 are symmetrically arranged on the inner side of the environment bearing platform 13; the pulley 4 is arranged in the slideway 5; the roll, pitch, heave, decoupling and connecting mechanism transmits the motion in the horizontal plane, so that the external platform limits the motion of three degrees of freedom in the horizontal plane of the internal platform; the roll, pitch and heave decoupling and connecting mechanism does not transfer roll, pitch and heave motions, namely the roll, pitch and heave motions of the external platform do not affect the internal platform. The roll-pitch-roll heave decoupling connection mechanism enables the roll, pitch and heave motions of the inner platform and the outer platform to be separated, allows a certain degree of relative motion to occur, and weakens the impact of the motion of the environment bearing platform 13 on the nuclear reactor support platform 12.
The roll-pitch-yaw heave decoupling and connecting mechanism can well restrict six-degree-of-freedom motion of the nuclear reactor supporting platform according to the environmental conditions and self-operation requirements of the nuclear reactor supporting platform in the ocean ice region, so that the safety of a nuclear reactor is ensured, and the adaptability of the nuclear reactor platform in the ice region under extreme sea conditions is improved.
The invention relates to a decoupling and connecting mechanism for rolling, pitching and heaving of a nuclear power platform in an ice region. The separated ice region nuclear power platform can provide sufficient and stable energy for ice region development, and the rolling and pitching heaving decoupling and connecting mechanism can weaken the impact of the motion of the environment bearing platform on the nuclear reactor supporting platform, so that the nuclear reactor supporting platform has good hydrodynamic performance, and the safety of a nuclear reactor is ensured. The nuclear reactor supporting platform and the environment bearing platform are respectively moored in a tension leg mode and multi-point anchoring. The nuclear reactor supporting platform and the environment bearing platform are separated and connected through a connecting mechanism, the connecting mechanism enables the inner platform and the outer platform to be separated in rolling, pitching and heaving motions, relative motion is allowed to occur to a certain degree, and impact of the motion of the environment bearing platform on the nuclear reactor supporting platform is weakened; the roll-pitch-roll heave decoupling connecting mechanism is provided with a locking device and a braking device, so that the inner platform and the outer platform are fixed during towing, and the towing performance of the platforms is improved; the roll and pitch heave decoupling connecting mechanism is provided with an auxiliary device, so that the safety of the system is improved. The invention is designed aiming at the environmental conditions and the self-operation requirements of the nuclear power platform in the ice region of the ocean, the platform structure can well resist ice load, and the mooring system and the connecting mechanism are designed, so that the six-degree-of-freedom motion of the nuclear reactor supporting platform can be skillfully restrained, the nuclear reactor supporting platform has good stability and hydrodynamic performance, the safety of a nuclear reactor is ensured, and the adaptability of the nuclear power platform in the ice region under extreme sea conditions is improved. The invention can be applied to the marine environment in ice regions and can ensure the safety of the nuclear reactor supporting platform.
The above-mentioned embodiments only express the embodiments of the present invention, but not should be understood as the limitation of the scope of the invention patent, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and these all fall into the protection scope of the present invention.
Claims (1)
1. A roll, pitch, heave, decouple and connect mechanism for connecting a nuclear power platform in an ice region is characterized in that the roll, pitch, heave, decouple and connect mechanism comprises a horizontal ring (1), a rotating shaft (2), a sleeve (3), a pulley (4), a slideway (5), a rolling bearing (6), a bearing locking sleeve (7), a rolling bearing brake (8) and an auxiliary device; the auxiliary device comprises a fender (10) and a mooring cable (11); the rolling and pitching heave decoupling and connecting mechanism can enable the nuclear reactor supporting platform (12) separated from each other to be connected with the environment bearing platform (13), and the impact of the motion of the environment bearing platform (13) on the nuclear reactor supporting platform (12) is weakened;
the nuclear reactor supporting platform (12) is cylindrical, and two rolling bearings (6) are symmetrically arranged in the middle of the cylindrical surface of the nuclear reactor supporting platform; the inner side and the outer side of the horizontal ring (1) are provided with four rotating shafts (2) which are distributed at intervals of 90 degrees, the axial directions of the rotating shafts (2) are overlapped with the radial direction of the horizontal ring (1), two rotating shafts (2) which are positioned on the same diameter are arranged on the inner side of the horizontal ring (1), and the other two rotating shafts (2) are arranged on the outer side of the horizontal ring (1); a fender (10) is arranged on the other side of the mounting point of each rotating shaft (2) on the horizontal ring (1); two rolling bearings (6) on the nuclear reactor supporting platform (12) are mounted on the rotating shaft (2) on the inner side of the horizontal ring (1) through a bearing locking sleeve (7), and a fender (10) correspondingly mounted with the two rotating shafts (2) is supported on the inner surface of the sleeve (3); the mooring cables (11) are flexible mooring cables, four groups are arranged at intervals of 90 degrees, each group comprises four mooring cables (11), one end of each group of four mooring cables (11) is arranged on the outer surface of the cylindrical surface of the nuclear reactor supporting platform (12) at equal intervals, the other end of each group of four mooring cables is arranged on the inner surface of the sleeve (3) at equal intervals, and the external platform is prevented from driving the nuclear reactor supporting platform (12) to have overlarge swing amplitude under the limit condition, so that the external platform impacts the nuclear reactor supporting platform (12); two rolling bearings (6) are symmetrically arranged in the middle of the inner surface of the sleeve (3), the rolling bearings (6) are arranged on the rotating shaft (2) on the outer side of the horizontal ring (1) through a bearing locking sleeve (7), and a fender (10) correspondingly arranged with the two rotating shafts (2) is supported on a nuclear reactor supporting platform (12); each of the four rolling bearings (6) is provided with a rolling bearing brake (8) for braking the rolling bearings (6) during towing; four groups of pulley systems are symmetrically arranged on the outer side of the sleeve (3), and each pulley system comprises 5 pulleys (4); the pulley brake (9) is arranged on the support rod of the pulley (4) and used for braking the pulley (4) during towing; four slideways (5) are symmetrically arranged on the inner side of the environment bearing platform (13); the pulley (4) is arranged in the slideway (5);
the roll, pitch, heave, decoupling and connecting mechanism transmits the motion in the horizontal plane, so that the external platform limits the motion of three degrees of freedom in the horizontal plane of the internal platform; the rolling, pitching and heaving motions of the external platform are not transmitted, namely the rolling, pitching and heaving motions of the external platform do not influence the internal platform.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657838.0A CN110386227B (en) | 2019-07-20 | 2019-07-20 | Roll, pitch and heave decoupling and connecting mechanism for connecting ice region nuclear power platform |
| AU2020281167A AU2020281167B2 (en) | 2019-07-20 | 2020-07-08 | Connecting mechanism for connecting separated nuclear power platform in ice region |
| PCT/CN2020/100793 WO2021012950A1 (en) | 2019-07-20 | 2020-07-08 | Connection mechanism for connecting separate nuclear power platforms in ice-covered zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657838.0A CN110386227B (en) | 2019-07-20 | 2019-07-20 | Roll, pitch and heave decoupling and connecting mechanism for connecting ice region nuclear power platform |
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| Publication Number | Publication Date |
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| CN110386227A CN110386227A (en) | 2019-10-29 |
| CN110386227B true CN110386227B (en) | 2021-01-05 |
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| CN201910657838.0A Active CN110386227B (en) | 2019-07-20 | 2019-07-20 | Roll, pitch and heave decoupling and connecting mechanism for connecting ice region nuclear power platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021012950A1 (en) * | 2019-07-20 | 2021-01-28 | 大连理工大学 | Connection mechanism for connecting separate nuclear power platforms in ice-covered zone |
| CN113362977B (en) * | 2021-07-12 | 2024-02-06 | 大连理工大学 | Integrated floating nuclear power station |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369846B (en) * | 2014-12-03 | 2017-02-22 | 中国海洋石油总公司 | Movable offshore nuclear power platform |
| CN205366005U (en) * | 2015-12-21 | 2016-07-06 | 中远船务工程集团有限公司 | Polygonized structure's marine floating nuclear electric power generation is equipped |
| KR20170090221A (en) * | 2016-01-28 | 2017-08-07 | 삼성중공업 주식회사 | Floating type nuclear reactor facility |
| CN106516031B (en) * | 2016-12-21 | 2020-01-31 | 中国船舶工业集团公司第七0八研究所 | semi-submersible octagonal prism-shaped floating nuclear power station carrier platform |
| CN107672758B (en) * | 2017-09-29 | 2019-04-09 | 大连理工大学 | A kind of ice formation nuclear power platform |
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