CN104743076A - Device for reducing liquid oscillation in moon pool of oceanographic engineering structure - Google Patents
Device for reducing liquid oscillation in moon pool of oceanographic engineering structure Download PDFInfo
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- CN104743076A CN104743076A CN201510161169.XA CN201510161169A CN104743076A CN 104743076 A CN104743076 A CN 104743076A CN 201510161169 A CN201510161169 A CN 201510161169A CN 104743076 A CN104743076 A CN 104743076A
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Abstract
Provided is a device for reducing liquid oscillation in a moon pool of an oceanographic engineering structure. Being fixed on the inner wall of the moon pool, a stream guidance cover comprises an outer housing, an inner housing, a plurality of vertical ribs and a plurality of arc-shaped transverse rib plates that are fixedly and integrally connected with the inner wall of the moon pool. The outer housing and the inner housing are both in trumpet shapes. The inner housing is installed between the outer housing and the inner wall of the moon pool. The vertical ribs are radially and uniformly distributed among the outer housing, the inner housing and the inner wall of the moon pool. The plurality of arc-shaped transverse rib plates are fixed at intervals among the outer housing, the inner housing and the inner wall of the moon poll layer by layer. The outer housing and the inner housing are both provided with multiple rows of round holes from top to bottom. The device for reducing the liquid oscillation in the moon pool of the oceanographic engineering structure is simple in structure. The stream guidance cover or multiple layers of wave attenuating rings or multiple rows of arc-shaped wave attenuating plates can effectively prevent the waves climbing, thereby preventing the occurrence of overtopping on the deck, reducing the formation of vortex inside the moon pool, and improving the hydrodynamic property of watercraft. The coupling effect between the sea water and the structure is weakened; and the oscillation of the oceanographic engineering structure is relieved.
Description
Technical field
The present invention relates to a kind of device reducing ocean engineering structure and sway, particularly a kind of device reducing liquid sloshing in drilling ship or drilling platform moon pool, belongs to Naval Architecture and Ocean Engineering technical field.
Background technology
Along with the mankind's continually developing the sharp increase of oil demand amount and Marine oil and gas resource, emerge the ocean engineering structures such as various types of offshore drilling ship and marine drilling platform.The common structure feature of this type of ocean engineering structure is, is provided with the vertical through hole (moon pool) leading directly to bottom from upper deck, for mud oil in the middle part of it.Because this through hole is directly communicated with ocean, the inner seawater of moon pool is larger by outside ocean environmental concerns.Under the effect of stormy waves stream, in moon pool, seawater seriously rocks, and motion is fierce, impact moon pool inwall and deck, impact ocean engineering structure, that aggravates each degree of freedom of ocean engineering structure sways motion, make work and rest environment become severe, reduce work efficiency.And the seawater in moon pool rocks the shape of degree and moon pool and inner structure relation is very large.The moon pool of shape and architecture can effectively suppress moon pool maritime interior waters to climb, thus avoid seawater to the moon pool wall and lower deck cause serious impact.Slow down swaying of works, and seawater is to the impact on deck, moon pool structure also can affect propulsion of ship efficiency.Thus moon pool shape reasonable in design and structure, be of great significance the exploitation tool of the manufacturing and designing of ocean structure, oil gas.
Summary of the invention
The object of this invention is to provide a kind of compact conformation, economical and practical, effectively can suppress the motion of moon pool maritime interior waters, whirlpool formed minimize, avoid deck overflow, check seawater works is impacted, and then reduce the device of liquid sloshing in the reduction boats and ships swayed of ocean engineering structure or the moon pool of ocean engineering structure.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of device reducing liquid sloshing in ocean engineering structure moon pool, comprise the streamlined reefer housing being fixed on moon pool inwall, described streamlined reefer housing is the tubular structure of double hull, comprise and be fixedly connected with integral outer casing with moon pool inwall, internal layer shell, the vertical muscle of polylith and the horizontal gusset of polylith arc, described outer casing, up-small and down-big tubaeform all in moon pool matching form of internal layer shell, internal layer shell is arranged between outer casing and moon pool inwall, the vertical muscle radial equipartition of polylith is at outer casing, between internal layer shell and moon pool inwall, the horizontal gusset layering interval of polylith arc is fixed on outer casing, between internal layer shell and moon pool inwall, outer casing and internal layer shell have all been covered with many rows circular hole from top to bottom.
Object of the present invention can also be realized further by following technical measures.
The device of liquid sloshing in the moon pool of aforesaid reduction ocean engineering structure, wherein said vertical muscle adopts I-beam section to make.Adjacent two row's circular holes on adjacent two row's circular holes on outer casing or internal layer shell all stagger setting.
A kind of device reducing liquid sloshing in the moon pool of ocean engineering structure, comprise multilayer axially to be arranged in parallel and endoporus wave absorption ring of the same size along moon pool, described wave absorption ring is cavity ring body structure, comprise be arranged in parallel upper ring plate, lower ring plate and centre basic ring plate, and be separately fixed at upper ring plate, a few gussets between basic ring plate and lower ring plate, the external profile diameter of described upper ring plate, lower ring plate and basic ring plate and moon pool matching form; Each layer wave absorption ring external diameter increases progressively one by one from deck to hull bottom, and each layer wave absorption ring outer rim is fixedly connected with moon pool inwall respectively; Upper ring plate endoporus, to be fixedly connected with by semicircle outward flange between basic ring plate endoporus and lower ring plate endoporus, on upper ring plate, on the upper and lower ring flat-plate of basic ring plate, to be respectively equipped with multiple pod apertures.
Object of the present invention can also be realized further by following technical measures.
The device of liquid sloshing in the moon pool of aforesaid reduction ocean engineering structure, is wherein fixedly connected with by the polylith vertical rib plate of radial equipartition between each layer wave absorption ring.Multiple pod apertures positions on upper ring plate, on the upper and lower ring flat-plate of basic ring plate are crisscross arranged.
Reduce a device for liquid sloshing in the moon pool of ocean engineering structure, comprise ordered series of numbers and be spaced and the arc wave eliminating board of helix setting along moon pool inwall axial stratification, the arc wave eliminating board of two row radially adjoinings is crisscross arranged, and hand of spiral is contrary; Be fixed on moon pool inwall inside arc wave eliminating board, between arc wave eliminating board upper and lower sides and moon pool inwall, be also respectively equipped with polylith gusset; Arc wave eliminating board is provided with the wave eliminating board lightening hole of number row spaced radial arrangement, and the upper and lower symmetry of hemispherical shell is separately fixed on the two sides of arc wave eliminating board lightening hole.
Object of the present invention can also be realized further by following technical measures.
The device of liquid sloshing in the moon pool of aforesaid reduction ocean engineering structure, hemispherical shell wherein on adjacent two row arc wave eliminating boards is symmetrical arranged, pitch angle alpha will=30 ° of arc wave absorption plate, between each layer arc wave eliminating board, spacing is 2m, wave eliminating board lightening hole diameter and hemispherical shell diameter are 1/6 of arc wave absorption plate width, and the same cross-sectional plane of moon pool is provided with 4 arc wave absorption plates.
Structure of the present invention is simple, the streamlined reefer housing of double-layer shell structure or the multilayer wave absorption ring be arranged in parallel or ordered series of numbers arc wave eliminating board, serve good wave absorbing function layer by layer, decrease the impact to moon pool inwall simultaneously, can wave be effectively stoped to climb, prevent deck overflow from occurring, reduce whirlpool in moon pool and formed, improve ship hydrodynamic performance.Reduce the coupling between seawater and works, reduce swaying of boats and ships or ocean engineering structure works.The stress raisers brought during the alluvion of multilayer wave absorption ring, decrease wave and intercoupling of moon pool inwall act on, thus reduce rocking of being caused by moon pool structure.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
accompanying drawing illustrates:
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the present invention two;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is I enlarged drawing of Fig. 3;
Fig. 6 is the structural representation of the embodiment of the present invention three;
Fig. 7 is the C-C cutaway view Amplified image of Fig. 6;
Fig. 8 is the D-D cutaway view Amplified image of Fig. 7.
Detailed description of the invention
Below in conjunction with accompanying drawing and three embodiments, the invention will be further described.
Three embodiments are all 190m for bosun below, and width is 32m, and moldeed depth is 17m; The upper end diameter of moon pool is 8m, and lower port diameter is the drilling ship of 11m.
Embodiment one
As depicted in figs. 1 and 2, the present embodiment comprises the streamlined reefer housing 2 being fixed on moon pool inwall 1, described streamlined reefer housing 2 is the tubular structure of double hull, comprise and be fixedly connected with the horizontal gusset 24 of integral outer casing 21, internal layer shell 22, the vertical muscle 23 of polylith and polylith arc with moon pool inwall 1, up-small and down-big tubaeform all in moon pool 1 matching form of outer casing 21, internal layer shell 22, reduce wave to climb, prevent deck 3 overflow, ensure the safety of the staff on deck 3.Internal layer shell 22 is arranged between outer casing 21 and moon pool inwall 1, polylith vertical muscle 23 radial equipartition is at outer casing 21, between internal layer shell 22 and moon pool inwall 1, vertical muscle 23 adopts I-beam section to make, improve the intensity of streamlined reefer housing 2, the horizontal gusset 24 layering interval of polylith arc is fixed on outer casing 21, between internal layer shell 22 and moon pool inwall 1, outer casing 21 and internal layer shell 22 has all been covered with many rows circular hole 211 from top to bottom.On outer casing 21, on adjacent two row's circular holes 211 or internal layer shell 22, adjacent two row's circular holes 211 all stagger setting.Wave can be cut down layer by layer.Reduce the impact of wave to moon pool inwall 1 and deck 3, weaken the coupling between wave and moon pool inwall 1, thus reduce swaying of drilling ship.The circular hole 211 of alternating expression, alleviates the quality of streamlined reefer housing 2, more contributes to building of streamlined reefer housing 2, reduce the pressure to moon pool inwall 1 simultaneously.
Embodiment two
As shown in Fig. 3 ~ Fig. 5, the present embodiment comprises multilayer and axially be arranged in parallel and endoporus wave absorption ring 4 of the same size along moon pool, wave absorption ring 4 is cavity ring body structure, comprise be arranged in parallel upper ring plate 41, lower ring plate 43 and centre basic ring plate 42, and be separately fixed at upper ring plate 41, between basic ring plate 42 and lower ring plate 43 3 circle gussets 44, upper ring plate 41, lower ring plate 43 and basic ring plate 42 external profile diameter and moon pool matching form; Each layer wave absorption ring 4 external diameter increases progressively from deck 3 one by one to hull bottom 5, and each layer wave absorption ring 4 outer rim is welded and fixed with moon pool inwall 1 respectively.Upper ring plate 41 endoporus, to be welded and fixed by semicircle outward flange 45 between basic ring plate endoporus and lower ring plate endoporus, the stress raisers brought when can reduce alluvion.Polylith vertical rib plate 46 by radial equipartition between each layer wave absorption ring 4 is soldered, is linked into an integrated entity by each layer wave absorption ring 4, improves its bulk strength.Be respectively equipped with multiple pod apertures 411 be crisscross arranged on upper ring plate 41, on the upper and lower ring flat-plate of basic ring plate 42 43, help wave absorption, thus minimizing wave climbs, and avoids directly impacting lower end, deck 3.Reduce intercoupling between wave and moon pool act on, thus rocking of being caused by moon pool of reduction ocean engineering structure.
Embodiment three
As shown in Figure 6 to 8, the present embodiment comprises ordered series of numbers and to be spaced and the arc wave eliminating board 5 of contrary arc wave eliminating board 5, the two row radially adjoining of hand of spiral is crisscross arranged along moon pool inwall 1 axial stratification, and hand of spiral is contrary.Be weldingly fixed on moon pool inwall 1 inside arc wave eliminating board 5, in order to improve the intensity of arc wave eliminating board 5, polylith gusset 52 is also respectively equipped with between arc wave eliminating board 5 upper and lower sides and lunar stratigraphy pond inwall 1, arc wave eliminating board 5 is provided with the wave eliminating board lightening hole 51 of number row spaced radial arrangement, and hemispherical shell about 6 symmetry is separately fixed on the two sides of unrestrained plate lightening hole 51.Pitch angle alpha will=30 ° of arc wave absorption plate 5, spacing A=2m between each layer arc wave eliminating board 5, wave eliminating board lightening hole 51 diameter and hemispherical shell 7 diameter are 1/6 of arc wave eliminating board 7 width B, and the same cross-sectional plane of moon pool is provided with 4 arc wave absorption plates 5.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (9)
1. one kind reduces the device of liquid sloshing in ocean engineering structure moon pool, it is characterized in that, comprise the streamlined reefer housing being fixed on moon pool inwall, described streamlined reefer housing is the tubular structure of double hull, comprise and be fixedly connected with integral outer casing with moon pool inwall, internal layer shell, the vertical muscle of polylith and the horizontal gusset of polylith arc, described outer casing, up-small and down-big tubaeform all in moon pool matching form of internal layer shell, internal layer shell is arranged between outer casing and moon pool inwall, the vertical muscle radial equipartition of polylith is at outer casing, between internal layer shell and moon pool inwall, the horizontal gusset layering interval of polylith arc is fixed on outer casing, between internal layer shell and moon pool inwall, outer casing and internal layer shell have all been covered with many rows circular hole from top to bottom.
2. the device reducing liquid sloshing in the moon pool of ocean engineering structure as claimed in claim 1, is characterized in that, described vertical muscle adopts I-beam section to make.
3. the as claimed in claim 1 device reducing liquid sloshing in the moon pool of ocean engineering structure, is characterized in that, the adjacent two row's circular holes on the adjacent two row's circular holes on outer casing or internal layer shell all stagger setting.
4. one kind reduces the device of liquid sloshing in the moon pool of ocean engineering structure as claimed in claim 1, it is characterized in that, comprise multilayer axially to be arranged in parallel and endoporus wave absorption ring of the same size along moon pool, described wave absorption ring is cavity ring body structure, comprise be arranged in parallel upper ring plate, lower ring plate and centre basic ring plate, and be separately fixed at upper ring plate, a few gussets between basic ring plate and lower ring plate, the external profile diameter of described upper ring plate, lower ring plate and basic ring plate and moon pool matching form; Each layer wave absorption ring external diameter increases progressively one by one from deck to hull bottom, and multilayer wave absorption ring outer rim is fixedly connected with moon pool inwall respectively; Upper ring plate endoporus, to be fixedly connected with by semicircle outward flange between basic ring plate endoporus and lower ring plate endoporus, on upper ring plate, on the upper and lower ring flat-plate of basic ring plate, to be respectively equipped with multiple pod apertures.
5. the device reducing liquid sloshing in the moon pool of ocean engineering structure as claimed in claim 4, be is characterized in that, be fixedly connected with between each layer wave absorption ring by the polylith vertical rib plate of radial equipartition.
6. the device reducing liquid sloshing in the moon pool of boats and ships or ocean engineering structure as claimed in claim 4, it is characterized in that, the multiple pod apertures positions on upper ring plate, on the upper and lower ring flat-plate of basic ring plate are crisscross arranged.
7. one kind reduces the device of liquid sloshing in the moon pool of ocean engineering structure as claimed in claim 1, it is characterized in that, comprise ordered series of numbers to be spaced and the arc wave eliminating board of helix setting along moon pool inwall axial stratification, the arc wave eliminating board of two row radially adjoinings is crisscross arranged, and hand of spiral is contrary; Be fixed on moon pool inwall inside arc wave eliminating board, between arc wave eliminating board upper and lower sides and moon pool inwall, be also respectively equipped with polylith gusset; Arc wave eliminating board is provided with the wave eliminating board lightening hole of number row spaced radial arrangement, and the upper and lower symmetry of hemispherical shell is separately fixed on the two sides of wave eliminating board lightening hole.
8. the device reducing liquid sloshing in the moon pool of ocean engineering structure as claimed in claim 7, it is characterized in that, the hemispherical shell on adjacent two row arc wave eliminating boards is symmetrical arranged.
9. the device reducing liquid sloshing in the moon pool of ocean engineering structure as claimed in claim 7, it is characterized in that, pitch angle alpha will=30 ° of described arc wave absorption plate, between each layer arc wave eliminating board, spacing is 2m, wave eliminating board lightening hole diameter and hemispherical shell diameter are 1/6 of arc wave eliminating board width, and the same cross-sectional plane of moon pool is provided with 4 arc wave absorption plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510161169.XA CN104743076B (en) | 2015-04-08 | 2015-04-08 | Reduce the device of liquid sloshing in ocean engineering structure moon pool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510161169.XA CN104743076B (en) | 2015-04-08 | 2015-04-08 | Reduce the device of liquid sloshing in ocean engineering structure moon pool |
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| CN104743076A true CN104743076A (en) | 2015-07-01 |
| CN104743076B CN104743076B (en) | 2018-03-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105730608A (en) * | 2016-03-18 | 2016-07-06 | 江苏科技大学 | Adjustable device for reducing oscillation of liquid in moon pool |
| CN105957565A (en) * | 2016-06-23 | 2016-09-21 | 中广核研究院有限公司 | Suppression pool and safety shell with same |
| CN108749998A (en) * | 2018-05-23 | 2018-11-06 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Diving moon pool and ship |
| CN108860461A (en) * | 2018-07-10 | 2018-11-23 | 哈尔滨锅炉厂有限责任公司 | Ship-borne containers level stability device |
| WO2020172984A1 (en) * | 2019-02-27 | 2020-09-03 | 招商局重工（江苏）有限公司 | Drag-reducing separator plate and design method therefor |
| CN112432632A (en) * | 2020-11-13 | 2021-03-02 | 国网浙江省电力有限公司舟山供电公司 | Multi-beam flow guide device for moon pool structure scientific investigation ship |
| CN113308985A (en) * | 2021-05-21 | 2021-08-27 | 招商局重庆交通科研设计院有限公司 | Wave impact device is prevented to bridge pier |
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| CN112432632B (en) * | 2020-11-13 | 2023-01-03 | 国网浙江省电力有限公司舟山供电公司 | Multi-beam flow guide device for moon pool structure scientific investigation ship |
| CN113308985A (en) * | 2021-05-21 | 2021-08-27 | 招商局重庆交通科研设计院有限公司 | Wave impact device is prevented to bridge pier |
| CN113308985B (en) * | 2021-05-21 | 2022-05-10 | 招商局重庆交通科研设计院有限公司 | Wave impact device is prevented to bridge pier |
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