CN207389454U - A kind of novel high-performance moon pool - Google Patents
A kind of novel high-performance moon pool Download PDFInfo
- Publication number
- CN207389454U CN207389454U CN201721136105.5U CN201721136105U CN207389454U CN 207389454 U CN207389454 U CN 207389454U CN 201721136105 U CN201721136105 U CN 201721136105U CN 207389454 U CN207389454 U CN 207389454U
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- moon pool
- performance
- moon
- novel high
- hull
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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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Abstract
The utility model is related to a kind of novel high-performance moon pools.Including the vertical moon pool through hull, sloped sidewall and the water conservancy diversion angle of wedge are on the quarter provided at the moon pool of side, moon pool step is provided at the moon pool of stem side, the side wall of stem side moon pool is provided with amortisseur bar on the inside of moon pool step with being provided with baffle on hull bottom interface and side wall along moon pool width.The utility model is on the basis of convenient for construction, resistance when can significantly reduce with moon pool ship's navigation, meanwhile, reduce under the operating modes such as shipping work since fluid rocks the hull rolling brought in moon pool, effectively improve ship resistance and performance and economy.
Description
Technical field
The utility model belongs to Naval Architecture and Ocean Engineering technical field, and in particular to one kind can reduce ship resistance and ship
The novel high-performance moon pool of rolling.
Background technology
In Naval Architecture and Ocean Engineering field, according to ship and marine structure such as drill ship, pipe laying barge, engineering support vessel
Deng operation or functional requirement, can there is free surface, inside and outside seawater to be connected through hull, intracavitary hull arrangement is one vertical
Moon pool structure, and the presence of moon pool can make ship with marine structure under navigation and working condition, before fluid in moon pool
Afterwards with left and right " rocking " movement and vertical direction " piston " movement, hull resistance is caused substantially to increase, for from boat or
Towing condition, resistance increase caused by moonpool openings will increase with the increase of the speed of a ship or plane, cause the increase of oil consumption, meanwhile, resistance
Can the quality of performance is related to thruster and Main Engine Selection and rapidity reach requirement.
Further, since rocking for moon pool intracavitary free surface causes 6 degree of freedom movement of hull more violent, therefore,
In the design phase, it is necessary to for moonpool openings form, Drag reduction devices and subtract the measure of shaking and optimize, for ship and
The economy and the market competitiveness of marine structure are of great significance.
Have both at home and abroad to the related ends of moonpool openings form and Drag reduction devices much at present, opening form includes side
Shape, circle, ellipse, bench group etc., but usually opening form is limited by its operation function and general layout, and drag reduction is arranged
Alms giver will include the closing of bottom opening and pool wall drag reduction, and the wherein locking device of bottom opening includes hydraulic-driven, distancing
Formula etc., significant effect, problem is once equipment breaks down, and moonpool openings can not open, for operation, the time and
Financial cost etc. will bring huge loss, and for pool wall Drag reduction devices, current achievement is difficult to apply to actual construction, reason
Including construction process is complicated, cost is excessively high, structure is difficult to realize etc., in addition, almost without subtracting the scheme of shaking in moon pool design, because
This, based on equipment availability and overall layout requirements, design is a kind of to be convenient for construction and drag reduction, the anti-rolling effect significantly new moon
Pond opening is particularly important.
The content of the invention
The technical problem to be solved by the utility model is to provide one kind in the case where not influencing equipment availability and arrangement,
Convenient for the new moon pool of construction, to improve the distribution of moon pool internal pressure, alleviate fluid and enter the whirlpool formed in moon pool, production
It is raw to rock and piston motion, it reduces that there are caused hull resistances to increase due to moon pool to the greatest extent, while reduces moon pool
The influence rocked to ship rolling of interior free surface.
The utility model is to solve the problems, such as that the technical solution used by it is to provide a kind of novel high-performance moon pool, moon pool
It extends vertically through in hull, sloped sidewall and the water conservancy diversion angle of wedge is on the quarter provided at the moon pool of side, the moon is provided at the moon pool of stem side
Pond step, the side wall of stem side moon pool are wide along moon pool on moon pool step with being provided with baffle on hull bottom interface and side wall
Degree direction is provided with amortisseur bar.
Further, for the sloped sidewall entire plate to moon pool inner inclination, angle of inclination is less than drilling-production equipment to the moon
Bottom of pond side angle, scope is between 3 ~ 20 °, and the vertical direction of sloped sidewall should be higher than that the seawater scope of freedom.
Further, the angle of the water conservancy diversion angle of wedge and horizontal plane is not more than 30 °, and width is of same size with moon pool, long
Degree is identical with Collision Bulkhead thickness.
Further, the bottom baffle is set up along moon pool base, using shelf plate structure.
Further, the amortisseur bar is set along captain direction, and structure is the trapezoidal plate of perforate or concave square plate.
By the moonpool openings form of sidewall slope, ensure the working region without interference with drilling device first, next subtracts
The height of free surface, positioned at the sidewall slope of stern-side, changes the side that fluid orthogonal acts on side wall inside small moon pool
Formula, while certain water conservancy diversion effect is played, improve pressure distribution in moon pool, again, construction is convenient in the inclination of entire side wall
And structural strengthening, and can effectively prevent the attachment of marine organisms；The water conservancy diversion angle of wedge of stern-side wall and the baffle of fore side wall,
Can reduce to the greatest extent into the fluid in moon pool, so as to slow down fluid in moon pool rock and piston motion, effective drag reduction；
Amortisseur bar on moon pool step further stops that transverse direction of the seawater in moon pool is rocked, and energy is rocked in consumption, so as to reduce hull
Rolling.
Description of the drawings
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the diagrammatic cross-section of the utility model.
Fig. 2 is using certain drill ship as carrier, using the sectional view of the utility model opening design and the office of bottom baffle
Portion's enlarged drawing.
Fig. 3 is the partial enlarged view of the sectional view and amortisseur bar in Fig. 2 at A-A.
Fig. 4 is the partial enlarged view of the sectional view and amortisseur bar position of opening in Fig. 2 at B-B.
Fig. 5 is the sectional view at C-C in Fig. 2.
Specific embodiment
It is described in detail referring to the drawings to inventing a kind of involved novel high-performance moon pool.
Fig. 1 is the diagrammatic cross-section of the utility model.Moon pool 1 runs through hull, and incoming is from bow to stern, on the quarter side month
Chi2Chu is provided with sloped sidewall 3 and the water conservancy diversion angle of wedge 4, and moon pool step 5 is provided at stem side moon pool 8, stem side moon pool 8
Side wall is provided with amortisseur bar on moon pool step 5 with being provided with baffle 6 on hull bottom interface and side wall along moon pool width
7。
The sloped sidewall 3 of stern-side moon pool 2, whole plate can effectively reduce free surface face in moon pool to moon pool inner inclination
Product inhibits moon pool inland sea wave waterborne, improves the distribution of moon pool internal pressure, so as to play the effect of drag reduction, angle of inclination is less than
Drilling-production equipment ensures that the working region of drilling device is not disturbed in the inclination of side wall, scope is at 3 ° ~ 20 ° to moon pool base angle
Between, 3 vertical direction of sloped sidewall is higher than the seawater scope of freedom.
The water conservancy diversion angle of wedge 4 primarily serves guide functions, reduces fluid and enters inside moon pool 1, improves what fluid in moon pool 1 generated
Whirlpool rocks and piston motion, and the bottom angle of wedge is designed with parts subtractive way, and width is of same size with moon pool 1, and length is with preventing
Fore peak bulkhead thickness is identical, and angle of wedge angle with horizontal plane is not more than 30 °, this design will increase moonpool openings size at hull bottom, favorably
Strengthen and build in moon pool structure.
The side wall of stem side moon pool 8 is with setting several baffles 6 on hull bottom interface and side wall, length scale is not to do
Drilling-production equipment work is disturbed as criterion, 6 length of baffle on side wall can be longer than lower end-stopping plate in the angular range of permission, width with
Moon pool is of same size.Baffle 6 is set up along 1 base of moon pool, and shelf plate structure can be used.
5 inside of moon pool step is provided with several longitudinal amortisseur bars 7 along moon pool width, and amortisseur bar 7 is the ladder of perforate
Shape plate, transverse design bracket carry out structural strengthening, do not influence drilling-production equipment operation, in addition the length of 5 length of moon pool step hinders
The structure of Buddhist nun's item 7 can also be concave square plate.
Fig. 2 is using certain drill ship as carrier, using the sectional view of the utility model opening design and the office of bottom baffle
Portion's enlarged drawing.It is 11.2 ° that 10 top to moon pool bottom edge angle of drilling rod is measured in figure, therefore, the choosing of 3 angle of inclination of sloped sidewall
10 ° are selected, since extreme draft is 11.5m in all operating modes of drill ship, 3 vertical height of sloped sidewall elects 12m, the water conservancy diversion angle of wedge 4 as
Angle with horizontal plane is 20 °, at length to Collision Bulkhead, i.e. 1.4m, the design of the baffle 6 of 5 bottom of moon pool step it is also contemplated that
The top of drilling rod 9 sets 2 block baffles to moon pool bottom edge angle, and bottom extends 0.3m as the on the basis of former base arrangement
One block baffle, away from setting shelf plate that length is 0.5m at baseline 1.4m as the second block baffle, two block baffles every
1.4m is respectively provided with bracket reinforcement.
Fig. 3 is the partial enlarged view of the sectional view and amortisseur bar in Fig. 2 at A-A.The width of baffle 6 and moon pool width phase
Together, two block baffles 6 are arranged altogether in moon pool wall surface, first piece of vertical scale is only 0.3m, fluid is entered inside moon pool play it is slow
Solution acts on, and 6 vertical scale of the second block baffle is 0.5m, inhibits fluid again and enters moon pool, the amortisseur bar 7 of lateral arrangement has
The transverse direction that effect adds fluid in moon pool rocks damping, so as to reduce hull rolling.
Fig. 4 is the partial enlarged view of the sectional view and amortisseur bar position of opening in Fig. 2 at B-B.It can be seen that due to inclining
The presence of oblique side wall 3, the free surface in moon pool are obviously reduced.
Fig. 5 is the sectional view at C-C in Fig. 2.Sloped sidewall 3 and the width of the water conservancy diversion angle of wedge 4 are moon pool width, can whole plate
Processing is built, and the water conservancy diversion angle of wedge 4 more directly exports fluid along hull bottom.
In the present embodiment, calculate under 9.5m drinking water 12kn speed of a ship or plane operating modes, no Optimal improvements moon pool is compared, using this patent
Hull resistance reduce 4.51%, by the pressure rise for the whirlpool low-pressure area for aft locating to be formed inside moon pool, due to low-pressure area
Free surface caused by swabbing action reduces improving situation, and free surface fluctuation is gentler.
In conclusion using novel high-performance moon pool, on the basis of convenient for construction, it can significantly reduce band moon pool ship
Resistance when oceangoing ship navigates by water, meanwhile, reduce under the operating modes such as shipping work since fluid rocks the hull rolling brought in moon pool, have
Effect improves ship resistance and performance and economy.
The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only used for
Citing and the purpose of explanation, and be not intended to the utility model being limited in the range of the embodiment.It is led for this technology
For the technical staff in domain, on the premise of the bright technology of the utility model, design principle is not departed from, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as within the scope of protection of the utility model.
Claims (5)
1. a kind of novel high-performance moon pool, moon pool（1）It is vertical through hull, which is characterized in that side moon pool on the quarter（2）Place is set
It is equipped with sloped sidewall（3）And the water conservancy diversion angle of wedge（4）, in stem side moon pool（8）Place is provided with moon pool step（5）, stem side moon pool（8）
Side wall and hull bottom interface and side wall on be provided with baffle（6）, in moon pool step（5）On be provided with along moon pool width
Amortisseur bar（7）.
A kind of 2. novel high-performance moon pool according to claim 1, which is characterized in that the sloped sidewall（3）Monoblock
Plate is to moon pool（1）Inner inclination, angle of inclination are less than drilling-production equipment to moon pool base angle, and scope tilts between 3 ~ 20 °
Side wall（3）Vertical direction be higher than the seawater scope of freedom.
A kind of 3. novel high-performance moon pool according to claim 1, which is characterized in that the water conservancy diversion angle of wedge（4）With water
Plane Angle is no more than 30 °, width and moon pool（1）It is of same size, length is identical with Collision Bulkhead thickness.
A kind of 4. novel high-performance moon pool according to claim 1, which is characterized in that the baffle（6）Along moon pool（1）
Base is arranged upwards, using shelf plate structure.
A kind of 5. novel high-performance moon pool according to claim 1, which is characterized in that the amortisseur bar（7）Along captain
Direction is set, and structure is the trapezoidal plate of perforate or concave square plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136105.5U CN207389454U (en) | 2017-09-06 | 2017-09-06 | A kind of novel high-performance moon pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136105.5U CN207389454U (en) | 2017-09-06 | 2017-09-06 | A kind of novel high-performance moon pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207389454U true CN207389454U (en) | 2018-05-22 |
Family
ID=62415883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136105.5U Active CN207389454U (en) | 2017-09-06 | 2017-09-06 | A kind of novel high-performance moon pool |
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| CN (1) | CN207389454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107640278A (en) * | 2017-09-06 | 2018-01-30 | 中远海运重工有限公司 | Novel high-performance moon pool |
-
2017
- 2017-09-06 CN CN201721136105.5U patent/CN207389454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107640278A (en) * | 2017-09-06 | 2018-01-30 | 中远海运重工有限公司 | Novel high-performance moon pool |
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