AU2020281167B2 - Connecting mechanism for connecting separated nuclear power platform in ice region - Google Patents
Connecting mechanism for connecting separated nuclear power platform in ice region Download PDFInfo
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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
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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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Abstract
The present invention discloses a connecting mechanism for connecting a separated nuclear
power platform in an ice region, comprising a connecting mechanism of decoupled pitch and roll
for connecting a separated nuclear power platform in an ice region and a connecting mechanism of
decoupled pitch, roll and heave, and belongs to the field of ocean engineering in ice regions. Each
of the two connecting mechanisms mainly comprises a horizontal ring, rotating shafts, rolling
bearings, bearing rings, rolling bearing brakes, fenders and mooring lines, wherein the connecting
mechanism of decoupled pitch, roll and heave also comprises a sleeve, pulleys, slideways and
pulley brakes. The connecting mechanisms can connect a nuclear reactor supporting platform and
an environment bearing platform which are separated from each other. The connecting mechanisms
separate the roll and pitch movements of an internal platform and an external platform, allow a
certain degree of relative movement, and weaken the impact of the movement of the environment
bearing platform on the nuclear reactor supporting platform. The present invention is designed
according to the environment and operation requirements in an ocean ice region, has good stability
and hydrodynamic performance, ensures the safety of the nuclear reactor, and improves the
adaptability of the nuclear power platform in the ice region under extreme sea conditions.
Description
CONNECTING MECHANISM FOR CONNECTING SEPARATED NUCLEAR POWER PLATFORM IN ICE REGION Technical Field The present invention belongs to the field of ocean engineering in ice regions, relates to a connecting mechanism for connecting a separated nuclear power platform in an ice region, and particularly relates to a connecting mechanism of decoupled pitch and roll for connecting a separated nuclear power platform in an ice region and a connecting mechanism of decoupled pitch, roll and heave for connecting a separated nuclear power platform in an ice region. Background With global warming, the melting of Arctic sea ice has been accelerated, and conventionally navigable waters have appeared in summer. In the context of continuous development of economic globalization and regional integration, the value of the Arctic in strategy, economy, scientific research, environmental protection, waterways and resources has been continuously increased. The development and utilization of Arctic waterways and resources can greatly influence the energy strategy and economic development of China. As a development foundation in a polar region and an important energy supply engineering device, the nuclear power platform in the ice region provides sufficient and stable energy, and has less influence on the environment, high safety and great application prospects. Its related problems will become research hotspots in China and abroad. The safety problem of a nuclear reactor is an important problem that needs to be solved urgently for the nuclear power platform in the ice region. The present invention is proposed to ensure the safety of a nuclear reactor supporting platform. The performance requirements of the nuclear reactor supporting platform have two categories. The first category requires to ensure the buoyancy, stability and insubmersibility in still water. The second category requires to ensure movement performance and structural strength performance under environmental loads such as sea wind, sea waves, ocean current, sea ice and earthquakes. The connecting mechanism for the nuclear power platform in the ice region shall be designed on the premise of ensuring the above performance and safety. For operation safety of the nuclear reactor, stable operating conditions need to be provided, that is, strict requirements for the stability and movement performance of the nuclear reactor supporting platform are proposed .Under the action of large environmental loads, including the combined action of waves, wind and current and the combined action of ice, wind and current, the six-degree-of-freedom motion response of the nuclear reactor supporting platform needs to be small to ensure the safety of the nuclear reactor. The existing mooring system cannot meet the strict requirements.
Summary To solve the problems mentioned above in the prior art, the present invention proposes two
connecting mechanisms for connecting a separated nuclear power platform based on the
operating environment and requirements of a nuclear reactor supporting platform in ice region.
These two mechanisms are adapted to the environment in ice region so as to ensure the safety of
the nuclear reactor supporting platform.
To achieve the above purposes, the present invention adopts the following technical
solution:
A connecting mechanism for connecting a separated nuclear power platform in an ice region
comprises two structures: a connecting mechanism of decoupled pitch and roll for connecting a
separated nuclear power platform in an ice region and a connecting mechanism of decoupled
pitch, roll and heave for connecting a separated nuclear power platform in an ice region.
The connecting mechanism of decoupled pitch and roll for connecting the separated nuclear
power platform in the ice region is provided. The connecting mechanism of decoupled pitch and
roll is used for ensuring the safety of the nuclear reactor supporting platform. The connecting
mechanism of decoupled pitch and roll comprises a horizontal ring 1, rotating shafts 2, rolling
bearings 3, bearing rings 4, rolling bearing brakes 5 and an auxiliary device. The rolling bearing
brakes 5 are locking devices, and the auxiliary device comprises fenders 6 and mooring lines 7.
The connecting mechanism of decoupled pitch and roll can connect the nuclear reactor
supporting platform 8 and an environment bearing platform 9 which are separated from each
other. The nuclear reactor supporting platform 8 adopts tension leg mooring so that the
movement outside the horizontal plane of the platform (heave, roll and pitch) is small; and the
environment bearing platform 9 adopts a four-point mooring form, which is mainly used to
restrain the movement in the horizontal plane (surge, sway and yaw).
The nuclear reactor supporting platform 8 is cylindrical, and two rolling bearings 3 are
arranged symmetrically in the middle of a cylindrical surface of the nuclear reactor supporting
platform. Four rotating shafts 2 are installed inside and outside the horizontal ring 1, and
distributed at an interval of 900. 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 installed outside the
horizontal ring 1. The fender 6 is installed on the other side of the installation point of each
rotating shaft 2 on the horizontal ring 1. Two rolling bearings 3 on the nuclear reactor supporting
platform 8 are installed on the rotating shafts 2 inside the horizontal ring 1 through the bearing
rings 4; and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the inner surface of the environment bearing platform 9. The mooring lines 7 are flexible cables, and comprise four groups installed at an interval of 90°; each group comprises four mooring lines 7; one end of the four mooring lines 7 of each group is installed at equal intervals on the same altitude outside the cylindrical surface of the nuclear reactor supporting platform 8, and the other ends are installed at equal intervals on the same altitude on the inner surface of the environment bearing platform 9 to prevent an external platform from driving the nuclear reactor supporting platform 8 to swing greatly under extreme conditions and impacting the nuclear reactor supporting platform 8. Two rolling bearings 3 are installed symmetrically in the middle of the inner surface of the environment bearing platform 9. The rolling bearings 3 are installed on the rotating shafts 2 outside the horizontal ring 1 through the bearing rings 4, and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the nuclear reactor supporting platform 8. Each of the four rolling bearings 3 is provided with a rolling bearing brake 5 for braking the rolling bearings 3 during towing. The auxiliary device connects an internal platform and the external platform by arranging four fenders 6 and sixteen mooring lines 7 in four groups to prevent the external platform from greatly swinging under the extreme conditions and impacting the internal platform, thereby enhancing the safety of the system. The locking device can fix the internal platform and the external platform through the rolling bearing brakes 5 during towing, so as to solve the problem of stability of the internal platform without tension leg mooring during actual towing. The connecting mechanism of decoupled pitch and roll transmits the movement in the horizontal plane, so that the external platform limits the three-degree-of-freedom movement in the horizontal plane of the internal platform. The connecting mechanism of decoupled pitch and roll does not transmit roll and pitch movements, that is, roll and pitch of the external platform do not affect the internal platform. The connecting mechanism of decoupled pitch and roll transmits the heave movement. The environment bearing platform 9 has a truncated cone shape, and has a lower extension structure which makes radiation damping large, which is equivalent to the function of a heave plate. The heave movement performance is good, so that inner and outer heave degrees of freedom synchronously move slightly. The connecting mechanism of decoupled pitch and roll separates the roll and pitch movements of the internal platform and the external platform, allows a certain degree of relative movement, and weakens the impact of the movement of the environment bearing platform 9 on the nuclear reactor supporting platform 8. A connecting mechanism of decoupled pitch, roll and heave for connecting a separated nuclear power platform in an ice region is provided. The connecting mechanism of decoupled pitch, roll and heave comprises a horizontal ring 1, rotating shafts 2, a sleeve 10, pulleys 11, slideways 12, rolling bearings 3, bearing rings 4, rolling bearing brakes 5, pulley brakes 13 and an auxiliary device. The rolling bearing brakes 5 are locking devices; the pulley brakes 13 are brake devices; and the auxiliary device comprises fenders 6 and mooring lines 7. The connecting mechanism of decoupled pitch, roll and heave can connect the nuclear reactor supporting platform 8 and an environment bearing platform 9 which are separated from each other. The nuclear reactor supporting platform 8 adopts tension leg mooring so that the movement outside the horizontal plane of the platform (heave, roll and pitch) is small; and the environment bearing platform 9 adopts a four-point mooring form, which is mainly used to restrain the movement in the horizontal plane (surge, sway and yaw). The nuclear reactor supporting platform 8 is cylindrical, and two rolling bearings 3 are arranged symmetrically in the middle of a cylindrical surface of the nuclear reactor supporting platform. Four rotating shafts 2 are installed inside and outside the horizontal ring 1, and distributed at an interval 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; and the other two rotating shafts 2 are installed outside the horizontal ring 1. The fender 6 is installed on the other side of the installation point of each rotating shaft 2 on the horizontal ring 1. Two rolling bearings 3 on the nuclear reactor supporting platform 8 are installed on the rotating shafts 2 inside the horizontal ring 1 through the bearing rings 4; and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the inner surface of the sleeve 10. The mooring lines 7 are flexible cables, and comprise four groups installed at an interval of 90°; each group comprises four mooring lines 7; one end of the four mooring lines 7 of each group is installed at equal intervals on the same altitude on the outer surface of the cylindrical surface of the nuclear reactor supporting platform 8, and the other ends are installed at equal intervals on the same altitude on the inner surface of the sleeve 10 to prevent an external platform from driving the nuclear reactor supporting platform 8 to swing greatly under extreme conditions and impacting the nuclear reactor supporting platform 8. Two rolling bearings 3 are installed symmetrically in the middle of the inner surface of the sleeve 10. The rolling bearings 3 are installed on the rotating shafts 2 outside the horizontal ring 1 through the bearing rings 4, and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the nuclear reactor supporting platform 8. Each of the four rolling bearings 3 is provided with a rolling bearing brake 5 for braking the rolling bearings 3 during towing. Four groups of pulley systems are symmetrically installed outside the sleeve 10, and each pulley system comprises 5 pulleys 11. The pulley brakes 13 are installed on supporting rods of the pulleys 11 for braking the pulleys 11 during towing. Four slideways 12 are symmetrically arranged inside the environment bearing platform 9. The pulleys 11 are installed in the slideways 12. The locking device can limit the rolling bearings 3 through the rolling bearing brakes 5 during towing, and the brake devices can limit the pulleys 11 through the pulley brakes 13 during towing, so as to fix the internal platform and the external platform, thereby solving the problem of stability of the internal platform without tension leg mooring during actual towing. The auxiliary device connects the internal platform and the sleeve 10 by arranging four fenders 6 and sixteen mooring lines 7 in four groups to connect with the external platform, to prevent the external platform from driving the sleeve 10 to greatly swing under the extreme conditions and impacting the internal platform, thereby enhancing the safety of the system. The connecting mechanism of decoupled pitch, roll and heave transmits the movement in the horizontal plane, so that the external platform limits the three-degree-of-freedom movement in the horizontal plane of the internal platform. The connecting mechanism of decoupled pitch, roll and heave does not transmit roll, pitch and heave movements, that is, roll, pitch and heave movements of the external platform do not affect the internal platform. The connecting mechanism of decoupled pitch, roll and heave separates the roll, pitch and heave movements of the internal platform and the external platform, allows a certain degree of relative movement, and weakens the impact of the movement of the environment bearing platform 9 on the nuclear reactor supporting platform 8. The present invention has the following beneficial effects: The present invention aims at the environmental conditions and operation requirements of the nuclear reactor supporting platform 8 in the ocean ice region. The two connecting mechanisms designed in the present invention can well constrain the three-degree-of-freedom movement of the nuclear reactor supporting platform 8, 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 present invention can be applied to the marine environment in the ice region to ensure the safety of the nuclear reactor supporting platform 8. Description of Drawings Fig. 1 is an installation effect diagram of embodiment 1 of the present invention; Fig. 2 is a top view of an installation effect of embodiment 1 of the present invention; Fig. 3 is a three-dimensional diagram of a horizontal ring of embodiment 1 of the present invention; Fig. 4 is a three-dimensional diagram of a nuclear reactor supporting platform of embodiment 1 of the present invention; Fig. 5 is a three-dimensional diagram of an environment bearing platform of embodiment 1 of the present invention; Fig. 6 is a three-dimensional diagram of an auxiliary device of embodiment 1 of the present invention; Fig. 7 is an installation effect diagram of embodiment 2 of the present invention; Fig. 8 is a top view of an installation effect of embodiment 2 of the present invention; Fig. 9 is a three-dimensional diagram of a horizontal ring of embodiment 2 of the present invention; Fig. 10 is a three-dimensional diagram of a sleeve of embodiment 2 of the present invention; Fig. 11 is a three-dimensional diagram of a nuclear reactor supporting platform of embodiment 2 of the present invention; Fig. 12 is a three-dimensional diagram of an environment bearing platform of embodiment 2 of the present invention; and Fig. 13 is a three-dimensional diagram of an auxiliary device of embodiment 2 of the present invention. In the figures, 1 horizontal ring; 2 rotating shaft; 3 rolling bearing; 4 bearing ring; 5 rolling bearing brake; 6 fender; 7 mooring line; 8 nuclear reactor supporting platform; 9 environment bearing platform; 10 sleeve; 11 pulley; 12 slideway; 13 pulley brake.
Detailed Description The present invention will be further described below in combination with the drawings and specific embodiments. Embodiment 1: A connecting mechanism of decoupled pitch and roll for connecting a separated nuclear power platform in an ice region As shown in Fig. 1 and Fig. 2, the present invention discloses a connecting mechanism of decoupled pitch and roll for connecting a separated nuclear power platform in an ice region, and relates to a connecting mechanism of decoupled pitch and roll for a nuclear power platform in an ice region (Chinese invention patent, patent No.: ZL201710906994.7). The connecting mechanism comprises a horizontal ring 1, rotating shafts 2, rolling bearings 3, bearing rings 4, rolling bearing brakes 5, fenders 6 and mooring lines 7. an auxiliary device. The connecting mechanism can connect a nuclear reactor supporting platform 8 and an environment bearing platform 9 which are separated from each other. The nuclear reactor supporting platform 8 adopts tension leg mooring so that the movement outside the horizontal plane of the platform (heave, roll and pitch) is small; and the environment bearing platform 9 adopts a four-point mooring form, which is mainly used to restrain the movement in the horizontal plane (surge, sway and yaw). As shown in Fig. 3, four rotating shafts 2 are installed inside and outside the horizontal ring 1, and distributed at an interval of 90°. Two rotating shafts 2 on the same diameter are installed inside the horizontal ring 1. The axial direction of the rotating shafts 2 coincides with the radial direction of the horizontal ring 1. The other two rotating shafts 2 are installed outside the horizontal ring 1. The axial direction of the rotating shafts 2 coincides with the radial direction of the horizontal ring 1. The fender 6 is installed on the other side of the installation point of each rotating shaft 2 on the horizontal ring 1. As shown in Figs. 4, 5 and 6, two rolling bearings 3 on the nuclear reactor supporting platform 8 are installed on the rotating shafts 2 inside the horizontal ring 1 through the bearing rings 4; and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the inner surface of the environment bearing platform 9. The mooring lines 7 are flexible cables, and comprise four groups installed at an interval of 90°; each group comprises four mooring lines 7; one end of the four mooring lines 7 of each group is installed at equal intervals on the same altitude outside the cylindrical surface of the nuclear reactor supporting platform 8, and the other ends are installed at equal intervals on the same altitude on the inner surface of the environment bearing platform 9 to prevent an external platform from driving the nuclear reactor supporting platform 8 to swing greatly under extreme conditions and impacting the nuclear reactor supporting platform 8. Two rolling bearings 6 are installed symmetrically in the middle of the inner surface of the environment bearing platform 9. The rolling bearings 6 are installed on the rotating shafts 2 outside the horizontal ring 1 through the bearing rings 7, and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the nuclear reactor supporting platform 8. Each of the four rolling bearings 3 is provided with a rolling bearing brake 5 for braking the rolling bearings 3 during towing. The connecting mechanism transmits the movement in the horizontal plane, so that the external platform limits the three-degree-of-freedom movement in the horizontal plane of the internal platform. The connecting mechanism does not transmit roll and pitch movements, that is, roll and pitch of the external platform do not affect the internal platform. The connecting mechanism transmits the heave movement. The environment bearing platform 9 has a sandglass shape, and has a lower extension structure which makes radiation damping large, which is equivalent to the function of a heave plate. The heave movement performance is good, so that inner and outer heave degrees of freedom synchronously move slightly. The connecting mechanism separates the roll and pitch movements of the internal platform and the external platform, allows a certain degree of relative movement, and weakens the impact of the movement of the environment bearing platform 9 on the nuclear reactor supporting platform 8. The connecting mechanism aims at the environmental conditions and operation requirements of the nuclear reactor supporting platform 8 in the ocean ice region, can well constrain the six-degree-of-freedom movement of the nuclear reactor supporting platform 8, ensures the safety of the nuclear reactor, and improves the adaptability of the nuclear power platform in the ice region under extreme sea conditions. The separated nuclear power platform in the ice region can provide sufficient and stable energy for the development of the ice region. The connection mechanism can weaken the impact of the movement of the environment bearing platform on the nuclear reactor supporting platform, so that the nuclear reactor supporting platform has good hydrodynamic performance to ensure the safety of the nuclear reactor. The nuclear reactor supporting platform and the environment bearing platform respectively adopt the tension leg mooring and multi-point mooring. The nuclear reactor supporting platform and the environment bearing platform are separated, and connected through the connecting mechanism. The connecting mechanism separates the roll and pitch movements of the internal platform and the external platform, allows a certain degree of relative movement, and weakens the impact of the movement of the environment bearing platform on the nuclear reactor supporting platform. The connecting mechanism is provided with a locking device which can fix the internal platform and the external platform during towing, so as to enhance the towing performance of the platforms. The connecting mechanism is provided with the auxiliary device which increases the safety of the system. The present invention is designed according to the environmental conditions and operation requirements of the nuclear power platform in the ocean ice region. The platform structure can well resist ice loads. The design of the mooring system and the connecting mechanism can ingeniously constrain the six-degree-of-freedom movement of the nuclear reactor supporting platform, enables the nuclear reactor supporting platform to have good stability and hydrodynamic performance, ensures the safety of the nuclear reactor, and improves the adaptability of the nuclear power platform in the ice region under extreme sea conditions. The present invention can be applied to the marine environment in the ice region to ensure the safety of the nuclear reactor supporting platform. Embodiment 2: A connecting mechanism of decoupled pitch, roll and heave for connecting a separated nuclear power platform in an ice region As shown in Fig. 13 and Fig. 8, the present invention discloses a connecting mechanism of decoupled pitch, roll and heave for connecting a separated nuclear power platform in an ice region, which is used for the nuclear power platform in the ice region (Chinese invention patent, patent No.: ZL201710906994.7). The connecting mechanism of decoupled pitch, roll and heave comprises a horizontal ring 1, rotating shafts 2, a sleeve 10, pulleys 11, slideways 12, rolling bearings 3, bearing rings 4, rolling bearing brakes 5, fenders 6 and mooring lines 7. The connecting mechanism of decoupled pitch, roll and heave can connect the nuclear reactor supporting platform 8 and an environment bearing platform 9 which are separated from each other. The nuclear reactor supporting platform 8 adopts tension leg mooring so that the movement outside the horizontal plane of the platform (heave, roll and pitch) is small; and the environment bearing platform 9 adopts a four-point mooring form, which is mainly used to restrain the movement in the horizontal plane (surge, sway and yaw). As shown in Fig. 11, the nuclear reactor supporting platform 8 is cylindrical, and two rolling bearings 3 are arranged symmetrically in the middle of a cylindrical surface of the nuclear reactor supporting platform. As shown in Fig. 9, four rotating shafts 2 are installed inside and outside the horizontal ring 1, and distributed at an interval 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; and the other two rotating shafts 2 are installed outside the horizontal ring 1. The fender 6 is installed on the other side of the installation point of each rotating shaft 2 on the horizontal ring 1. Two rolling bearings 3 on the nuclear reactor supporting platform 8 are installed on the rotating shafts 2 inside the horizontal ring 1 through the bearing rings 4; and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the inner surface of the sleeve 10. As shown in Fig. 13, the mooring lines 7 are flexible cables, and comprise four groups installed at an interval of 90°; each group comprises four mooring lines 7; one end of the four mooring lines 7 of each group is installed at equal intervals on the same altitude on the outer surface of the cylindrical surface of the nuclear reactor supporting platform 8, and the other ends are installed at equal intervals on the same altitude on the inner surface of the sleeve 10 to prevent the external platform from driving the sleeve 10 to swing greatly under extreme conditions and impacting the internal platform. As shown in Fig. 10, two rolling bearings 3 are installed symmetrically in the middle of the inner surface of the sleeve 10. The rolling bearings 3 are installed on the rotating shafts 2 outside the horizontal ring 1 through the bearing rings 4, and the fenders 6 installed corresponding to the two rotating shafts 2 are supported on the nuclear reactor supporting platform 8. Each of the four rolling bearings 3 is provided with a rolling bearing brake 5 for braking the rolling bearings 3 during towing. Four groups of pulley systems are symmetrically installed outside the sleeve 10, and each pulley system comprises 5 pulleys 11. The pulley brakes 13 are installed on supporting rods of the pulleys 11 for braking the pulleys 11 during towing. As shown in Fig. 12, four slideways 12 are symmetrically arranged inside the environment bearing platform 9. The pulleys 11 are installed in the slideways 12. The connecting mechanism of decoupled pitch, roll and heave transmits the movement in the horizontal plane, so that the external platform limits the three-degree-of-freedom movement in the horizontal plane of the internal platform. The connecting mechanism of decoupled pitch, roll and heave does not transmit roll, pitch and heave movements, that is, roll, pitch and heave movements of the external platform do not affect the internal platform. The connecting mechanism of decoupled pitch, roll and heave separates the roll, pitch and heave movements of the internal platform and the external platform, allows a certain degree of relative movement, and weakens the impact of the movement of the environment bearing platform 9 on the nuclear reactor supporting platform 8. The connecting mechanism of decoupled pitch, roll and heave aims at the environmental conditions and operation requirements of the nuclear reactor supporting platform in the ocean ice region, can well constrain the six-degree-of-freedom movement of the nuclear reactor supporting platform, ensures the safety of the nuclear reactor, and improves the adaptability of the nuclear power platform in the ice region under extreme sea conditions. The present embodiment 2 relates to a connecting mechanism of decoupled pitch, roll and heave for the nuclear power platform in the ice region. The separated nuclear power platform in the ice region can provide sufficient and stable energy for the development of the ice region. The connection mechanism of decoupled pitch, roll and heave can weaken the impact of the movement of the environment bearing platform on the nuclear reactor supporting platform, so that the nuclear reactor supporting platform has good hydrodynamic performance to ensure the safety of the nuclear reactor. The nuclear reactor supporting platform and the environment bearing platform respectively adopt the tension leg mooring and multi-point mooring. The nuclear reactor supporting platform and the environment bearing platform are separated, and connected through the connecting mechanism. The connecting mechanism separates the roll, pitch and heave movements of the internal platform and the external platform, allows a certain degree of relative movement, and weakens the impact of the movement of the environment bearing platform on the nuclear reactor supporting platform. The connecting mechanism of decoupled pitch, roll and heave is provided with a locking device and brake devices to fix the internal platform and the external platform during towing, so as to enhance the towing performance of the platforms. The connecting mechanism of decoupled pitch, roll and heave is provided with an auxiliary device which increases the safety of the system. The present invention is designed according to the environmental conditions and operation requirements of the nuclear power platform in the ocean ice region. The platform structure can well resist ice loads. The design of the mooring system and the connecting mechanism can ingeniously constrain the six-degree-of-freedom movement of the nuclear reactor supporting platform, enables the nuclear reactor supporting platform to have good stability and hydrodynamic performance, ensures the safety of the nuclear reactor, and improves the adaptability of the nuclear power platform in the ice region under extreme sea conditions. The present invention can be applied to the marine environment in the ice region to ensure the safety of the nuclear reactor supporting platform. The above embodiments only express the implementation of the present invention, and shall not be interpreted as a limitation to the scope of the patent for the present invention. It should be noted that, for those skilled in the art, several variations and improvements can also be made without departing from the concept of the present invention, all of which belong to the protection scope of the present invention.
Claims (2)
1. A connecting mechanism for connecting a separated nuclear power platform in an ice region, which is specifically a connecting mechanism of decoupled pitch and roll for connecting the separated nuclear power platform in the ice region, wherein the connecting mechanism of decoupled pitch and roll comprises a horizontal ring (1), rotating shafts (2), rolling bearings (3), bearing rings (4), rolling bearing brakes (5), fenders (6) and mooring lines (7); the connecting mechanism of decoupled pitch and roll can connect a nuclear reactor supporting platform (8) and an environment bearing platform (9) which are separated from each other, and weakens the impact of a movement of the environment bearing platform (9) on the nuclear reactor supporting platform (8); the nuclear reactor supporting platform (8) is cylindrical, and two rolling bearings (3) are arranged symmetrically in a middle of a cylindrical surface of the nuclear reactor supporting platform; four rotating shafts (2) are installed inside and outside the horizontal ring (1), and distributed at an interval of 90°; an axial direction of the rotating shafts (2) coincides with a radial direction of the horizontal ring (1), wherein two rotating shafts (2) on a same diameter are installed inside the horizontal ring (1); the other two rotating shafts (2) are installed outside the horizontal ring (1); the fender (6) is installed on the other side of an installation point of each rotating shaft (2) on the horizontal ring (1); two rolling bearings (3) on the nuclear reactor supporting platform (8) are installed on the rotating shafts (2) inside the horizontal ring (1) through the bearing rings (4); and the fenders (6) installed corresponding to the two rotating shafts (2) are supported on an inner surface of the environment bearing platform (9); the mooring lines (7) are flexible cables; one end of the mooring lines (7) is installed at equal intervals outside the cylindrical surface of the nuclear reactor supporting platform (8), and the other ends are installed on the inner surface of the environment bearing platform (9); two rolling bearings (3) are installed symmetrically in a middle of the inner surface of the environment bearing platform (9); the rolling bearings (3) are installed on the rotating shafts (2) outside the horizontal ring (1) through the bearing rings (4), and the fenders (6) installed corresponding to the two rotating shafts (2) are supported on the nuclear reactor supporting platform (8); each of the four rolling bearings (3) is provided with a rolling bearing brake (5) for braking the rolling bearings (3) during towing; the connecting mechanism of decoupled pitch and roll for connecting the separated nuclear power platform in the ice region transmits a movement in the horizontal plane, so that an external platform limits a three-degree-of-freedom movement in the horizontal plane of an internal platform and simultaneously transmits a heave movement; the connecting mechanism does not transmit roll and pitch movements, that is, roll and pitch of the external platform do not affect the internal platform.
2. A connecting mechanism for connecting a separated nuclear power platform in an ice region, which is specifically a connecting mechanism of decoupled pitch, roll and heave for connecting the separated nuclear power platform in the ice region, comprising a horizontal ring (1), rotating shafts (2), a sleeve (10), pulleys (11), slideways (12), rolling bearings (3), bearing rings (4), rolling bearing brakes (5), pulley brakes (13) and an auxiliary device; the auxiliary device comprises fenders (6) and mooring lines (7); the connecting mechanism of decoupled pitch, roll and heave can connect a nuclear reactor supporting platform (8) and an environment bearing platform (9) which are separated from each other, and weakens the impact of a movement of the environment bearing platform (9) on the nuclear reactor supporting platform (8); the nuclear reactor supporting platform (8) is cylindrical, and two rolling bearings (3) are arranged symmetrically in a middle of a cylindrical surface of the nuclear reactor supporting platform; four rotating shafts (2) are installed inside and outside the horizontal ring (1), and distributed at an interval of 90°; an axial direction of the rotating shafts (2) coincides with a radial direction of the horizontal ring (1), wherein two rotating shafts (2) on a same diameter are installed inside the horizontal ring (1); the other two rotating shafts (2) are installed outside the horizontal ring (1); the fender (6) is installed on the other side of an installation point of each rotating shaft (2) on the horizontal ring (1); two rolling bearings (3) on the nuclear reactor supporting platform (8) are installed on the rotating shafts (2) inside the horizontal ring (1) through the bearing rings (4); and the fenders (6) installed corresponding to the two rotating shafts (2) are supported on an inner surface of the sleeve (10); the mooring lines (7) are flexible cables; one end of the mooring lines (7) is installed at equal intervals on an outer surface of the cylindrical surface of the nuclear reactor supporting platform (8), and the other ends are installed at equal intervals on the inner surface of the sleeve (10); two rolling bearings (3) are installed symmetrically in a middle of the inner surface of the sleeve (10); the rolling bearings (3) are installed on the rotating shafts (2) outside the horizontal ring (1) through the bearing rings (4), and the fenders (6) installed corresponding to the two rotating shafts (2) are supported on the nuclear reactor supporting platform (8); each of the four rolling bearings (3) is provided with a rolling bearing brake (5) for braking the rolling bearings (3) during towing; four groups of pulley systems are symmetrically installed outside the sleeve (10), and each pulley system comprises 5 pulleys (11); the pulley brakes (13) are installed on supporting rods of the pulleys (11) for braking the pulleys (11) during towing; four slideways (12) are symmetrically arranged inside the environment bearing platform (9); the pulleys (11) are installed in the slideways (12); the connecting mechanism of decoupled pitch, roll and heave for connecting the separated nuclear power platform in the ice region transmits a movement in the horizontal plane, so that an external platform limits a three-degree-of-freedom movement in the horizontal plane of an internal platform; the connecting mechanism does not transmit roll, pitch and heave movements, that is, roll, pitch and heave movements of the external platform do not affect the internal platform.
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Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657839.5A CN110386228B (en) | 2019-07-20 | 2019-07-20 | A roll and pitch decoupling zero coupling mechanism that is used for disconnect-type ice district nuclear power platform to connect |
| CN201910657839.5 | 2019-07-20 | ||
| CN201910657838.0 | 2019-07-20 | ||
| 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 |
| PCT/CN2020/100793 WO2021012950A1 (en) | 2019-07-20 | 2020-07-08 | Connection mechanism for connecting separate nuclear power platforms in ice-covered zone |
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| AU2020281167A1 AU2020281167A1 (en) | 2021-02-04 |
| AU2020281167B2 true AU2020281167B2 (en) | 2022-01-06 |
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| AU2020281167A Active AU2020281167B2 (en) | 2019-07-20 | 2020-07-08 | Connecting mechanism for connecting separated nuclear power platform in ice region |
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| WO (1) | WO2021012950A1 (en) |
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| AU2020281167A1 (en) | 2021-02-04 |
| WO2021012950A1 (en) | 2021-01-28 |
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