CN110949606A - Combined type ship bubble restraining and evacuating device provided with extensible moon pool - Google Patents
Combined type ship bubble restraining and evacuating device provided with extensible moon pool Download PDFInfo
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- CN110949606A CN110949606A CN201911420388.XA CN201911420388A CN110949606A CN 110949606 A CN110949606 A CN 110949606A CN 201911420388 A CN201911420388 A CN 201911420388A CN 110949606 A CN110949606 A CN 110949606A
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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
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
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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
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
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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
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B2003/147—Moon-pools, e.g. for offshore drilling vessels
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
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- Vibration Prevention Devices (AREA)
Abstract
The invention provides a combined type ship bubble restraining and evacuating device with an extensible moon pool. The invention has compact structure and reasonable arrangement, can effectively reduce the generation of bubbles in the moon pool of the ship and effectively evacuate the generated bubbles, avoids the bubbles from entering the moon pool and the working area of the acoustic instrument, improves the wake flow at the stern, prolongs the service life of the propeller, provides the working environment of the acoustic instrument, ensures the normal work of the instrument, has strong adaptability, and effectively ensures different working conditions to meet the movement requirements of the ship.
Description
Technical Field
The invention relates to a device for reducing the generation of bubbles in a moon pool and promoting the evacuation of bubbles at the bottom of a ship, in particular to a combined type ship bubble restraining and evacuating device with an extensible moon pool, and belongs to the technical field of ships and ocean engineering.
Background
With the increasing demand of human beings for marine resources, the exploration of marine resources is more and more urgent, and exploration type boats are developed and applied. Such boats use a large number of acoustic devices to perform the exploration function. In order to avoid or reduce direct impact of external fluid on exploration equipment, a moon pool structure is arranged in the middle of the ship and used for lowering acoustic equipment. The moon pool structure vertically penetrates through the deck to the bottom of the ship and is directly communicated with external seawater, so that direct impact of fluid is avoided, and the exploration function of acoustic equipment is not influenced.
However, in practice, it has been found that boats can also have acoustic equipment placed behind the moon pool, in addition to acoustic equipment placed in the moon pool. The moon pool is arranged in the ship, causing the hull to break in the ship, forming a discontinuous structure. In addition, the fluid in the moon pool is directly communicated with the external seawater, the fluid in the moon pool generates violent movement, and slamming continuously occurs on the wall surface of the moon pool, so a large amount of bubbles are formed in the moon pool. In addition, the positions of the boat head, the side thrust and the like also generate a large amount of bubbles due to the movement of the boat body, and the bubbles enter the moon pool or reach the instrument position behind the moon pool. The accumulation of air bubbles to a certain extent can lead to malfunction of the exploration apparatus.
To solve such problems, it is necessary to reduce the generation of bubbles in the moon pool while preventing bubbles generated from the bow from entering the moon pool and being transferred to the rear instrument position along the bottom of the ship. And related researches are rarely carried out at present, so that a device for reducing the generation of bubbles in a moon pool and promoting the evacuation of bubbles at the bottom of a ship is urgently needed to be designed, and the device has important significance and engineering practical value.
Disclosure of Invention
The invention aims to provide a combined type ship bubble restraining and evacuating device with an extensible moon pool, which is compact in structure, convenient and quick to install and remarkable in effect, and aims to solve the problems that a large amount of moon pool bubbles are generated and the bubbles interfere with acoustic exploration instruments at the bottom of a ship.
The purpose of the invention is realized as follows: the ship comprises a ship body and is characterized in that a moon pool is arranged in the middle of the ship body, a first-stage bubble evacuation structure and a second-stage bubble evacuation structure are arranged at the bottom of the ship body, the first-stage bubble evacuation structure is located between the moon pool and a bow, the second-stage bubble evacuation structure is located between the moon pool and a stern, the moon pool is an extensible moon pool, and winch structures for driving the extensible moon pool are arranged on decks around the moon pool.
The invention also includes such structural features:
1. the extensible moonpool comprises a fixed wall fixedly connected with a deck and a movable wall connected with a steel cable of a winch structure, wherein slide ways are arranged on four inner surfaces of the fixed wall, slide blocks matched with the slide ways are arranged at the upper ends of four outer surfaces of the movable wall, bosses matched with the inner surfaces of the fixed wall are arranged on the lower sections of the four outer surfaces of the movable wall, balls are arranged between the movable wall and the fixed wall between the slide blocks and the bosses, the winch structure is provided with four groups of the movable wall and the fixed wall, the four groups of the movable wall are respectively arranged on the periphery of the.
2. The winch is characterized in that a follow-up steel cable transition structure is further arranged between the winch structure and the edge of the moon pool, the follow-up steel cable transition structure comprises a base arranged on the deck, U-shaped grooves arranged on the base and three steel rolling rods arranged in the U-shaped grooves, and when the steel cable slides through the grooves, the steel rolling rods roll along with the grooves.
3. The winch structures in the ship length direction are divided into two groups, the two groups of winch structures are connected through coaxial rods, and three slide ways and three slide blocks are arranged in the corresponding directions; the winch structure of ship width direction has a set ofly, and the slide, the slider that correspond the direction all have two.
4. The first-stage bubble evacuation structure comprises bolt mounting holes matched with three bolts arranged at the bottom of the ship, the first-stage bubble evacuation structure is of a barrel-shaped cambered surface transition structure from the front end to the tail end, the molded line shrinks at the rear end, and the height of the molded line becomes smaller until the molded line shrinks into a conical surface with the height close to 0; the front end of the second-stage bubble evacuation structure is a circular arc-shaped inclined head part, the height of the second-stage bubble evacuation structure is kept unchanged from the front end to the rear end, the rear end of the second-stage bubble evacuation structure is of a sloping plate type structure, and bolt mounting holes matched with three bolts arranged at the bottom of the ship are formed in the upper portion of the second-stage bubble evacuation structure.
Compared with the prior art, the invention has the beneficial effects that: the invention relates to a bubble restraining and bottom bubble evacuating device in a moon pool of a low-speed exploration type engineering boat or a long-term mooring operation exploration type boat. The invention has compact structure and reasonable arrangement, can effectively reduce the generation of bubbles in the moon pool of the ship and effectively evacuate the generated bubbles, avoids the bubbles from entering the moon pool and the working area of the acoustic instrument, improves the wake flow at the stern, prolongs the service life of the propeller, provides the working environment of the acoustic instrument, ensures the normal work of the instrument, has strong adaptability, and effectively ensures different working conditions to meet the movement requirements of the ship.
Drawings
FIG. 1 is a schematic view of the general layout of a boat;
FIG. 2 is a schematic view of a partial structure of a moon pool;
FIG. 3(a) is a cross-sectional view of the movable wall of the moon pool in a retracted state;
FIG. 3(b) is a cross-sectional view of the extended movable wall of the moon pool;
FIG. 4 is a schematic view of a deck cable drive configuration;
FIG. 5 is a schematic view of a bottom mounting structure of the bubble evacuation device;
FIG. 6 is a schematic diagram of a first stage bubble evacuation structure;
fig. 7 is a schematic diagram of a second stage bubble evacuation structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A combined extended moon pool type boat bubble restraining and evacuating device comprises a side push, an extended moon pool, a deck matched hoisting device, a multistage bubble evacuating structure and a propeller, wherein the side push is arranged at the head of a boat body; the moon pool is arranged in the middle of the ship body; the first stage bubble evacuation device is arranged between the side push and the moon pool, and the second stage bubble evacuation device is arranged between the moon pool and the propeller; the propeller is arranged at the tail part of the boat; the deck matched hoisting device is arranged on the deck at the periphery of the moon pool.
Furthermore, the extensible moon pool comprises a fixed moon pool wall surface and a movable moon pool wall surface. The surface of the fixed moon pool wall surface is provided with ball slideways to assist the moon pool to move up and down, 4 slideways are arranged in the transverse direction, namely the ship width direction, and 6 slideways are arranged in the longitudinal direction, namely the ship length direction; the movable moon pool wall surface is provided with a raised outer edge at the assembly position of the slide way, the raised outer edge has the same shape as the slide way and is used for sealing the upper end of the slide way and avoiding garbage falling into the movable moon pool wall surface. Balls are arranged in the slide ways to ensure smooth sliding between the outer wall and the inner wall of the moon pool. The middle lower part of the inner wall is provided with a flange, the width of the flange ensures that the moon pool is attached to the outer wall of the moon pool after descending, and the direct impact of seawater on the slide way is reduced. And a lifting ring is arranged at the upper end of the inner wall of the moon pool and used for installing a steel cable and matching with a winch to lift the inner wall of the moon pool. Because the water flow has a tendency, the closer to the water surface, the faster the flow speed. When the movable inner wall of the moon pool is in an extending state, the lower end of the moon pool is far lower than the bottom of the ship, and water flow and bubbles at the bottom of the ship move forward along the bottom of the ship, so that the bubbles generated by the bow cannot enter the moon pool in the backward transportation process, and acoustic instruments in the moon pool are effectively protected. Meanwhile, water flow in the direction of the bow of the ship is blocked by the movable wall surface, the speed of fluid in the moon pool is relatively reduced, and the amount of generated bubbles is also reduced. Meanwhile, when the boat is in a non-operation state and rapidly returns to a harbor or goes to an operation area, the movable wall surface can be retracted upwards, so that the resistance of the boat is reduced, and the rapidity of the boat is ensured.
Furthermore, the deck is matched with a hoisting device, which comprises a winch and a steel cable transition structure. The winch and the side double winches are connected through the shaft lever to form a coaxial co-rotating winch set, so that the integral lifting of the inner wall of the moon pool is facilitated. In the actual use at present, the cable wire is directly placed on the deck, and the cable wire directly causes deck wear in the sliding process. And a large wood block is arranged between the steel cable and the deck, so that the steel cable is easy to swing laterally when sliding rapidly, and potential safety hazards exist. The steel cable transition structure is positioned on a deck right in front of the winch, the end part of the steel cable transition structure is of an inwards concave structure, the steel rolling rod is arranged in the groove, and the rolling rod is always positioned in the inwards concave structure in the rolling process under the action of the self gravity of the rolling rod. When the steel cable slides, the rolling rod rolls along with the steel cable, safety and high efficiency are achieved, deck abrasion is avoided, and potential safety hazards are reduced.
Furthermore, the middle of the multistage bubble evacuation structure, the side thrust structure and the moon pool is a first-stage bubble evacuation structure which is used for evacuating bubbles generated by slamming of the side thrust hole cavity and the ship bow to the outer side of the ship body, so that the bubbles entering the moon pool are reduced, and abnormal operation of detection equipment in the moon pool is caused. The second-stage bubble evacuation structure is positioned between the moon pool and the propeller and mainly used for evacuating bubbles generated in the moon pool to the outer side of the ship body, reducing bubbles reaching the propeller, further reducing corrosion of the bubbles to the propeller and inhibiting noise generated by bubble breakage at the propeller. Wherein first order bubble evacuation structure prelude is the cask type transition, and thickness reduces gradually, laminates gradually from the front to the back to guarantee that the transition of bow streamline is smooth and easy, when evacuating the bubble, avoid hull resistance to increase by a wide margin as far as possible. The head of the second-stage bubble evacuation structure is in a chamfered structure form, the tail of the second-stage bubble evacuation structure is in a ramp type, and the thickness of the second-stage bubble evacuation structure is uniform from front to back. The air bubble evacuation effect is superior to that of a first-stage air bubble evacuation structure, the resistance of the sacrificial part is increased, and the working effect of the acoustic exploration instrument is ensured.
The moon pool 4 in the present invention may be rectangular (5m × 3m × 5m (length × width × draft)) or circular (5m × 5m (diameter × draft)). The bubble evacuation structures 31 and 32 each have a size of 5m × 0.5m × 0.03m (plate length × average plate width × average plate thickness), an intersection angle of 45 °, and a diameter of the transition arc of 2 m.
As shown in fig. 1, the hull 1 of the present invention comprises, in order from bow to stern, a side thruster 2 disposed at the bow, a first stage bubble evacuation device 31, a moon pool 4 disposed at the middle, a second stage bubble evacuation device 32 disposed at the stern, and a stern propeller 5. The corner of the moon pool 4 is in arc transition, and the interior of the moon pool contains a free liquid level (a water level directly contacted with air).
As shown in fig. 2, the moon pool 4 is divided into a moon pool fixed wall 51 and a movable wall 52 which can be raised and lowered. Wherein the fixed wall 51 is provided with a slide 511 and the movable wall 52 is provided with a hook 53. And winches 7 are arranged on the deck 6 around the moon pool 4, wherein a coaxial synchronous winch is formed between the port and starboard double winches through a coaxial rod 71, so that the movable wall surface 52 can be ensured to vertically lift. The lifting lug 53 on the movable wall 52 is connected between the winch 7 and the movable wall 52 through a steel cable. In order to avoid direct friction between the steel cable and the deck 6, a follow-up structure 8 is arranged at the edge of the moon pool corresponding to the winch 7, so that smooth transition of the steel cable is guaranteed. The upper end of the outer surface of the movable wall surface is provided with a sliding block matched with the slide way, the lower section of the outer surface of the movable wall surface is provided with a boss matched with the inner surface of the fixed wall surface, balls are arranged between the movable wall surface and the fixed wall surface between the sliding block and the boss, the lower end of the boss is matched with the lower end surface of the fixed wall surface, the slide way does not penetrate through the inner surface of the fixed wall surface, the protrusion is matched with the inner surface, and.
As shown in fig. 3(a), the movable wall 52 is in the retracted state, and the movable ball 512 is located at the lower end of the protrusion on the movable wall 52. The protrusions and the sliding blocks form a concave structure, and the convex surfaces at the upper end and the lower end can ensure that the balls 512 cannot fall off in the process that the movable wall surface 52 slides up and down, and the garbage above the balls cannot fall off and is prevented from being accumulated. If the balls 512 need to be replaced, the movable wall surface 52 can be lifted higher than the fixed wall surface 51, so that the replacement of the balls or the addition of the lubricant can be completed.
As shown in fig. 3(b), the movable wall 52 is at the lowest position, and the upper end of the ball 512 contacts the upper end of the sliding groove of the movable wall 52, and the lower end of the ball 512 contacts the lower end of the sliding groove 511 of the fixed wall 51. The width of the projection on the movable wall surface 52 ensures that the movable wall surface 52 is attached to the fixed wall surface 51 after being lowered. The water flow has a trend, and the movable wall surface 52 of the moon pool 5 is lower than the lower end surface of the conventional moon pool 5, so that the problem that bubbles coming from the bow direction do not enter the moon pool 5 to influence the normal work of the acoustic equipment in the moon pool can be effectively avoided.
As shown in fig. 4, the trailing type steel cable transition structure 8 is arranged on the deck 6, the steel cable transition structure 8 and the deck 6 are connected by welding, and a U-shaped groove 81 is formed in an end surface for installing a steel rolling rod 82. When the steel cable slides, the steel rolling rod 82 rolls along with the steel cable, so that the safety and the efficiency are high, the deck is prevented from being abraded, and the potential safety hazard is reduced.
As shown in fig. 5, a protruding bolt 9 is provided under the boat (ship) body 1 for installing the bubble evacuation structures 31 and 32. After the installation is finished, the bulge part is cut, and the streamline is guaranteed.
As shown in fig. 6, the first stage bubble evacuation structure 31 includes a barrel-shaped curved transition structure 311, which ensures the smooth incident flow surface, where the bubble flow forms a branch, causing the bubbles to escape. Meanwhile, the molded line shrinks at the rear end, the height becomes smaller until the molded line shrinks into a conical surface with the height close to 0, so that the increase of resistance is reduced as much as possible while the evacuation of bubbles is ensured. The provision of 3 bolt mounting holes 312 facilitates the installation of the evacuation structure 31 at the bottom of the boat 1. The tail part of the evacuation structure is a gradual change structure 313, which ensures smooth transition of water flow, prevents the formation of turbulence and increases the movement of fluid in the moon pool.
As shown in fig. 7, the second stage bubble evacuation structure 32 includes a circular arc-shaped inclined head portion to ensure a smooth incident flow surface, where the bubble flow forms a branch, causing the bubbles to escape. The height remains constant from the front end to the rear end. The rear end is of a sloping plate type structure 323, although resistance is increased due to the structural form, bubbles are evacuated to the maximum extent, the working environment of an acoustic exploration instrument behind a moon pool is guaranteed, and a propeller at the tail part is protected. The 3 bolt mounting holes 322 are provided to facilitate the evacuation device 32 to be mounted at the bottom of the boat 1.
In addition to the above embodiments, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (7)
1. The combination formula is equipped with boats and ships bubble suppression and sparse device of extensible moon pool, its characterized in that: the ship comprises a ship body and is characterized in that a moon pool is arranged in the middle of the ship body, a first-stage bubble evacuation structure and a second-stage bubble evacuation structure are arranged at the bottom of the ship body, the first-stage bubble evacuation structure is located between the moon pool and a bow, the second-stage bubble evacuation structure is located between the moon pool and a stern, the moon pool is an extensible moon pool, and winch structures for driving the extensible moon pool are arranged on decks around the moon pool.
2. The combined extended moon pool equipped boat bubble suppressing and evacuating device of claim 1, wherein: the extensible moonpool comprises a fixed wall fixedly connected with a deck and a movable wall connected with a steel cable of a winch structure, wherein slide ways are arranged on four inner surfaces of the fixed wall, slide blocks matched with the slide ways are arranged at the upper ends of four outer surfaces of the movable wall, bosses matched with the inner surfaces of the fixed wall are arranged on the lower sections of the four outer surfaces of the movable wall, balls are arranged between the movable wall and the fixed wall between the slide blocks and the bosses, the winch structure is provided with four groups of the movable wall and the fixed wall, the four groups of the movable wall are respectively arranged on the periphery of the.
3. Combined extended moon pool equipped boat bubble suppression and evacuation device according to claim 1 or 2, wherein: the winch is characterized in that a follow-up steel cable transition structure is further arranged between the winch structure and the edge of the moon pool, the follow-up steel cable transition structure comprises a base arranged on the deck, U-shaped grooves arranged on the base and three steel rolling rods arranged in the U-shaped grooves, and when the steel cable slides through the grooves, the steel rolling rods roll along with the grooves.
4. The combined extended moon pool equipped boat bubble suppressing and evacuating device of claim 3, wherein: the winch structures in the ship length direction are divided into two groups, the two groups of winch structures are connected through coaxial rods, and three slide ways and three slide blocks are arranged in the corresponding directions; the winch structure of ship width direction has a set ofly, and the slide, the slider that correspond the direction all have two.
5. Combined extended moon pool equipped boat bubble suppression and evacuation device according to claim 1 or 2, wherein: the first-stage bubble evacuation structure comprises bolt mounting holes matched with three bolts arranged at the bottom of the ship, the first-stage bubble evacuation structure is of a barrel-shaped cambered surface transition structure from the front end to the tail end, the molded line shrinks at the rear end, and the height of the molded line becomes smaller until the molded line shrinks into a conical surface with the height close to 0; the front end of the second-stage bubble evacuation structure is a circular arc-shaped inclined head part, the height of the second-stage bubble evacuation structure is kept unchanged from the front end to the rear end, the rear end of the second-stage bubble evacuation structure is of a sloping plate type structure, and bolt mounting holes matched with three bolts arranged at the bottom of the ship are formed in the upper portion of the second-stage bubble evacuation structure.
6. The combined extended moon pool equipped boat bubble suppressing and evacuating device of claim 3, wherein: the first-stage bubble evacuation structure comprises bolt mounting holes matched with three bolts arranged at the bottom of the ship, the first-stage bubble evacuation structure is of a barrel-shaped cambered surface transition structure from the front end to the tail end, the molded line shrinks at the rear end, and the height of the molded line becomes smaller until the molded line shrinks into a conical surface with the height close to 0; the front end of the second-stage bubble evacuation structure is a circular arc-shaped inclined head part, the height of the second-stage bubble evacuation structure is kept unchanged from the front end to the rear end, the rear end of the second-stage bubble evacuation structure is of a sloping plate type structure, and bolt mounting holes matched with three bolts arranged at the bottom of the ship are formed in the upper portion of the second-stage bubble evacuation structure.
7. The combined extended moon pool equipped boat bubble suppressing and evacuating device of claim 4, wherein: the first-stage bubble evacuation structure comprises bolt mounting holes matched with three bolts arranged at the bottom of the ship, the first-stage bubble evacuation structure is of a barrel-shaped cambered surface transition structure from the front end to the tail end, the molded line shrinks at the rear end, and the height of the molded line becomes smaller until the molded line shrinks into a conical surface with the height close to 0; the front end of the second-stage bubble evacuation structure is a circular arc-shaped inclined head part, the height of the second-stage bubble evacuation structure is kept unchanged from the front end to the rear end, the rear end of the second-stage bubble evacuation structure is of a sloping plate type structure, and bolt mounting holes matched with three bolts arranged at the bottom of the ship are formed in the upper portion of the second-stage bubble evacuation structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911420388.XA CN110949606A (en) | 2019-12-31 | 2019-12-31 | Combined type ship bubble restraining and evacuating device provided with extensible moon pool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911420388.XA CN110949606A (en) | 2019-12-31 | 2019-12-31 | Combined type ship bubble restraining and evacuating device provided with extensible moon pool |
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| CN110949606A true CN110949606A (en) | 2020-04-03 |
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| CN201911420388.XA Pending CN110949606A (en) | 2019-12-31 | 2019-12-31 | Combined type ship bubble restraining and evacuating device provided with extensible moon pool |
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|---|---|---|---|---|
| JP2001158394A (en) * | 1999-12-02 | 2001-06-12 | Mitsubishi Heavy Ind Ltd | Propulsion resistance reducing device of ship with moon pool |
| US20140202371A1 (en) * | 2012-07-20 | 2014-07-24 | Hyundai Heavy Industries Co., Ltd | Drillship having vortex suppresion block with recessed flow stabilizing section in moon pool |
| CN104340331A (en) * | 2013-07-31 | 2015-02-11 | 中国船舶工业集团公司第七〇八研究所 | Device for reducing navigation resistance on ship with moon pool |
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| CN109956005A (en) * | 2019-05-09 | 2019-07-02 | 哈尔滨工程大学 | A kind of convenient regulating type moon pool is interior to equip deployment device |
| CN211468688U (en) * | 2019-12-31 | 2020-09-11 | 哈尔滨工程大学 | Combined type ship bubble restraining and evacuating device provided with extensible moon pool |
-
2019
- 2019-12-31 CN CN201911420388.XA patent/CN110949606A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001158394A (en) * | 1999-12-02 | 2001-06-12 | Mitsubishi Heavy Ind Ltd | Propulsion resistance reducing device of ship with moon pool |
| US20140202371A1 (en) * | 2012-07-20 | 2014-07-24 | Hyundai Heavy Industries Co., Ltd | Drillship having vortex suppresion block with recessed flow stabilizing section in moon pool |
| CN104340331A (en) * | 2013-07-31 | 2015-02-11 | 中国船舶工业集团公司第七〇八研究所 | Device for reducing navigation resistance on ship with moon pool |
| KR20160009198A (en) * | 2014-07-15 | 2016-01-26 | 현대중공업 주식회사 | Structure for moonpool |
| CN109956005A (en) * | 2019-05-09 | 2019-07-02 | 哈尔滨工程大学 | A kind of convenient regulating type moon pool is interior to equip deployment device |
| CN211468688U (en) * | 2019-12-31 | 2020-09-11 | 哈尔滨工程大学 | Combined type ship bubble restraining and evacuating device provided with extensible moon pool |
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| Title |
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| 史泽宇: "月池诱生气泡在船底分布特征试验研究", 万方学术期刊数据库, 6 August 2019 (2019-08-06), pages 115 - 136 * |
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