CN202449173U - Precipitation and overflowing ballast compartment with sediment preventing function - Google Patents
Precipitation and overflowing ballast compartment with sediment preventing function Download PDFInfo
- Publication number
- CN202449173U CN202449173U CN2012200235624U CN201220023562U CN202449173U CN 202449173 U CN202449173 U CN 202449173U CN 2012200235624 U CN2012200235624 U CN 2012200235624U CN 201220023562 U CN201220023562 U CN 201220023562U CN 202449173 U CN202449173 U CN 202449173U
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- horizontal girder
- ballast tank
- deposition
- hole
- overflow
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Abstract
The utility model discloses a precipitation and overflowing ballast compartment with a sediment preventing function. The precipitation and overflowing ballast compartment comprises two communicated ballast compartment spaces on the board and the boat bottom; a precipitation compartment with a closed lower part is independently separated in the ballast compartment space on the board; the upper part of the precipitation compartment is provided with upper through holes which are communicated with other spaces of the ballast compartment and are used for overflowing; and one side of the bottom of the precipitation compartment is provided with a water inlet/outlet. According to the precipitation and overflowing ballast compartment, the partially independent precipitation compartment is arranged on the board of the ballast compartment, so that the sediment can be controlled to be precipitated in the precipitation compartment in which the sediment is easy to remove, the radical watertight dividing is not changed, the consistency between the precipitation and overflowing ballast compartment and the conventional ballast compartment is kept, and the operation complexity of a boatman is not increased. The working difficulty in removing the sediment can be reduced, so that the safety potential hazard of a boat can be reduced.
Description
Technical field
The present invention relates to subdivision of ships and structure design field, more particularly, relate to the structural development of ballast tank of ship.
Background technology
As shown in Figure 1, the ballast tank of prior art comprises the enclosure space (the L type integral structure shown in Fig. 1) that hull bottom and board constitute.Wherein, as shown in Figure 2, the prior art ballast tank, the ballast tank that is positioned at topside is by horizontal horizontal girder member 3, rib member 2 staggered each little partitions that are divided into longitudinally, and each is connected by hole 1 between cutting off.The ballast tank of hull bottom is made up of with bottom Outer Bottom Plating 23 tank top plate 22 of Fig. 3 middle and upper part, and is arranged at intervals with vertical bone 21 at tank top plate 22 and Outer Bottom Plating 23 upper vertical plate faces.Also show among Fig. 1 and be positioned at the tank top plate place and be used for ballast tank and advance/the ballast tank bottom suction inlet 4 of water outlet.
Problem is that harbours such as Ningbo, Zhoushan belong to important major port in China.Because the sea is gone into a large amount of silt underwashings in the Changjiang river, makes this marine site seawater silt content high.Boats and ships are when unloading goods, and the ballast water of harbour internal haze also is perfused in the ballast tank.Because silt content is up to 1-2%, these ballast waters are all wanted the mud of dozens or even hundreds of ton under the accumulation at each flight number of boats and ships.Particularly mud all is deposited in baroque hull bottom.Because bottom longitudinal 21 (shown in Figure 3) dense arrangement, the mud cleaning must be carried out respectively in each vertical bone shelves, very difficulty; Take time and effort; Can't can both clear up by each flight number, the result causes the shearing and the moment of flexure distortion of prestowage data display, makes crewman and classification society can't make correct assessment; Might cause that boats and ships are stressed to transfinite, quicken structural failure.After accumulating over a long period; Silt also can be sealed the discharge orifice of bottom longitudinal and cross rib plate comprehensively, buries until indulging bone, makes the situation such as burn into fold, flexing, fracture of bottom of ship can't be by timely cross-check sum reparation; The accelerated corrosion hull has increased the potential safety hazard of boats and ships.
Summary of the invention
The present invention is intended to solve the prior art ballast tank, and silt, mud mainly are deposited in the hull bottom space, makes to remove inconvenience, causes problems such as hull potential safety hazard increase.
In order to achieve the above object, the present invention provides a kind of deposition overflow ballast tank based on anti-silt function, and is identical with prior art, also comprises the ballast tank space that board and hull bottom two places are communicated with.Wherein, in the ballast tank space of said board, independently be separated out osed top deposition cabin, a bottom, the top in said deposition cabin is provided with through hole, is used for overflow.Through said top through hole, said deposition cabin is communicated with other spaces of said ballast tank.Said deposition bilge portion one side is provided with into/water outlet.
Said deposition cabin comprises distolateral floor of two ends fully enclosed and fully enclosed bottom, bottom horizontal girder, thereby constitutes a bottom osed top tubular construction.The middle part floor and the middle part horizontal girder of the little partition of crisscross formation that in said deposition cabin, has for prior art ballast tank structure.Wherein, in each said partition, offer the middle part through hole on the floor of said middle part; The bottom side of said middle part through hole flushes with bottom horizontal girder or middle part horizontal girder in the partition of living in, so that remove silt.Be used for the horizontal girder through hole that levels is cut off connection and offer on the horizontal girder of said middle part.
Under the optimal way; Said horizontal girder through hole on the adjacent two-layer said middle part horizontal girder up and down lays respectively at the both sides in said deposition cabin and offers; And the said horizontal girder through hole of bottom is positioned at saidly to advance/the opposite side of water outlet, thus make the water that injects the deposition cabin vertically successively inject each partition with the S type from the bottom to top.
Under the optimum way, each said horizontal girder through hole is that the staggered mode of arranging of a plurality of apertures is provided with.
In addition, two the said middle part through hole of same layer on adjacent two said middle part floors lay respectively at the both sides of said separately middle part floor, thereby in the horizontal, the water of injection also is to cut off injection one by one with the S type.Under the optimum way, adjacent two said middle part through holes are positioned at the both sides setting with the center line symmetry of middle part floor.
Identical with prior art, still keep and be positioned at hull bottom in the hull bottom ballast tank space and be provided with and be used for ballast tank and advance/the ballast tank bottom suction inlet of water outlet.When draining, can accelerate drainage speed.In the not serious zone of silt lodging, still can this ballast tank bottom suction inlet realize the turnover of ballast tank water.
A kind of optimal case, the said middle part horizontal girder in the deposition cabin is two-layer, wherein, the said horizontal girder through hole on lower floor's said middle part horizontal girder is three apertures, is the isosceles triangle setting.Said middle part, upper strata horizontal girder is provided with said horizontal girder through hole respectively in adjacent four partitions, and two said horizontal girder through holes of initial and end are isosceles triangle by three apertures and constitute; In, two said horizontal girder through holes are merely an aperture and are positioned at the middle part and are provided with.
The present invention is based on the deposition overflow ballast tank of anti-silt function, the deposition cabin independently is set,, thereby facilitate for the silt removing so that sediment deposition is in this through topside at ballast tank.The present invention does not change basic watertight to be cut apart, and has kept the conformability with conventional ballast tank, does not increase crewman's complicated operation degree.The present invention has reduced the work difficulty that silt is removed, and then has reduced the potential safety hazard of boats and ships.
Description of drawings
Fig. 1 is the outline structural representation of prior art ballast tank of ship;
Fig. 2 is the inner structure scheme drawing of ballast tank shown in Figure 1;
Fig. 3 is the boat bottom ballast tank structural representation of ballast tank shown in Fig. 1 and 2;
Fig. 4 is the inner structure scheme drawing that the present invention is based on a kind of embodiment of deposition overflow ballast tank of anti-silt function;
Fig. 5 is the planar structure scheme drawing that the present invention precipitates middle part floor in the cabin;
Fig. 6 is the planar structure scheme drawing of another adjacent with middle part shown in Figure 5 floor middle part floor;
Fig. 7 is the planar structure scheme drawing that the present invention precipitates cabin middle-end side rib plate;
Fig. 8 be Fig. 4 embodiment at the middle and upper levels the middle part horizontal girder the planar structure scheme drawing;
Fig. 9 be among Fig. 4 embodiment lower floor middle part horizontal girder the planar structure scheme drawing;
Figure 10 be among Fig. 4 embodiment the bottom horizontal girder the planar structure scheme drawing;
Figure 11 is the inner structure scheme drawing that the present invention is based on the another kind of embodiment of deposition overflow ballast tank of anti-silt function.
The specific embodiment
The present invention is based on the deposition overflow ballast tank of anti-silt function like Fig. 4 and shown in Figure 11, wherein, label 2 is for constituting the distolateral floor in deposition cabin, and the first road floor that among the figure is ballast tank is with floor at last.Label 3 is for constituting the bottom horizontal girder 3 in deposition cabin, ballast tank topside orlop horizontal girder not among the figure.Label 4 is a ballast tank bottom suction inlet, and label 5 advances/water outlet 5 for the ballast tank topside.Above-mentioned member 2 and 3 is the part watertight, and promptly airtight part with the sidewall sealing, surrounds a deposition cabin (dash area among the figure) at topside.Ballast water is thrown topside deposition cabin earlier into, makes the ballast water that contains a large amount of silts inject the deposition cabin earlier, overflows to the bottom ballast tank then; For improving sedimentation effect, perforate on the appropriate location of INT COMP middle part floor 7 and middle part horizontal girder 8, the flow direction and the flow velocity of control ballast water; Silt in the ballast water can major part be deposited in the topside deposition cabin; Have only a small amount of silt after deposition cabin overflow, be deposited in the double bottom, be easier to cleaning owing to be deposited in the silt ratio of topside; Can realize the thorough cleaning of each flight number, thereby reach anti-silt effect.
Ballast tank structure of the present invention is arranged two suction inlets at each ballast tank, and the string side is arranged high-order string side draught mouth 5, satisfies the notes drain function in deposition cabin, is convenient to topside simultaneously and removes silt, and low level suction inlet 4 is arranged in the bottom, satisfies the notes drain function of double bottom;
In addition, Fig. 9 is the second layer string side horizontal girder among Fig. 4, and promptly middle part horizontal girder 8 is that two middle part horizontal girders are positioned at of bottom among the figure.It is only in deposition cabin perforate foremost.Thereby make through hole 6 be positioned at into/the opposite side of water outlet 5.As shown in Figure 8, the through hole 6 on the middle part horizontal girder on upper strata is offered on the contrary with the lead to the hole site of horizontal girder shown in Figure 9, lays respectively at the both sides in deposition cabin.Thereby this makes ballast water in the deposition cabin, become S shape bottom-up mobile, increases the deposition path, improves sedimentation effect.Figure 10 is the structure of fully enclosed bottom, bottom horizontal girder 3, is all in to be positioned at deposition both sides out of my cabin and to offer intercommunicating pore.Label 25 among Fig. 8-10 is a transcerse bulkhead.
In addition; The superiors' string side horizontal girder in the deposition shown in Figure 8 cabin only at deposition rear portion, cabin wide-bore, guarantees that the path that ballast water arrives the front and back end outgate in deposition cabin equates; Can not differ greatly because of the path causes the two ends spillway discharge to differ obvious; Cause that flow velocity is fast, sedimentation effect is poor, the centre adds single aperture, prevents that the top of aperture from forming the low-down space of flow velocity.
Middle part floor in adjacent two deposition cabins as illustrated in Figures 5 and 6, aperture position is different, and level two the middle part through holes 9 on adjacent two middle part floors 7 lay respectively at the both sides of middle part floor 7 separately, and are symmetrical set with the center line of middle part floor.Be to be rotational symmetry among the figure, not only increased the path of deposition, and between each floor, can form the eddy current that quickens deposition, improve sedimentation effect with the floor line of centers.Fig. 7 is the structure of distolateral floor 2, and top through hole 11 is offered on the top that is all in the deposition cabin, thereby is communicated with other spaces of ballast tank.Among Fig. 5-7, label 24 is a UD upper deck.
In a kind of preferred embodiment; Structure with the NO.3 ballast tank of 320,000 tons of VLCC dirty tankers is the STR analysis through the FEM finite element model; And CDF fluid analysis; With the checking of solid model test, design optimum ballast tank form: like Fig. 7,1800mm is pushed up far from the cabin in the position, non-watertight hole (top through hole 11) of distolateral floor 2.Like Figure 10, the watertight of bottom horizontal girder 3 distance is between two distolateral floors 2.Like Fig. 5 and 6, the large opening of middle part through hole 9 is of a size of 1600x1000mm, and the large opening lower end is concordant with the horizontal girder face, is convenient to husky clearly; 4 the little opening diameters in top are 500mm, have increased flow area, reduce flow velocity, are of value to desilting, and simultaneously little perforate dislocation is arranged, satisfies requirement of strength.Like Fig. 8, end and the intermediate openings of the superiors' string side horizontal girder 600x800mm that to be 3 spacings be 500mm in the deposition cabin, dislocation arranges that the single aperture of centre is 600x800mm.Like Fig. 9, deposition is positioned at the middle part horizontal girder 8 of bottom in the cabin, only in deposition cabin perforate foremost, and the 600x800mm that to be of a size of 3 spacings be 500mm, dislocation is arranged.
The present invention is the basis with the experiment, and application CFD fluid analysis software carried out a large amount of calculating, contrast, analyze, demonstration obtains above-mentioned conclusion.Wherein, the scheme of pilot process has 12,64 kinds of experimental programs.The present invention can precipitate the silt of 30-40% in topside deposition cabin, wherein, and the sand grain of the greater particle size that main deposition can precipitate at short notice.The big opening of each rib member 7 of ballast tank is consistent with the height of horizontal girder member, and when the ballast water of next time exchanged, ballast water flows along the horizontal girder member, just can clear up side tank automatically, and was easy to operate, and saves human and material resources.The more important thing is; Through the ballast water after the cabin overflow of topside deposition; Mainly contain the sand grain that is difficult for deposition at short notice, that is to say, before the ballast water exchange of next time, also can not be deposited to basically in the ballast tank of bottom than small particle diameter; Can discharge out of my cabin along with the ballast water exchange, ballast tank silt rate of discharge resultant effect reaches about 80%.
The above; Be merely the preferable specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technical personnel of being familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (8)
1. deposition overflow ballast tank based on anti-silt function; Comprise the ballast tank space that board and hull bottom two places are communicated with; It is characterized in that; Part is independently divided in the ballast tank space of said board goes out osed top deposition cabin, a bottom, and the top in said deposition cabin is provided with the overflow through hole (11) on the top that is communicated with other spaces of said ballast tank; Said deposition bilge portion rear side is provided with into/water outlet (5).
2. according to the said deposition overflow ballast tank of claim 1, it is characterized in that said deposition cabin comprises distolateral floor of two ends fully enclosed (2) and fully enclosed bottom, bottom horizontal girder (3) based on anti-silt function; The middle part floor (7) and the middle part horizontal girder (8) that comprise the little partition of crisscross formation in the said deposition cabin;
In each said partition, offer middle part through hole (9) on the said middle part floor (7); The bottom side of said middle part through hole (9) flushes with bottom horizontal girder (3) or middle part horizontal girder (8) in the partition of living in;
Offer on the said middle part horizontal girder (8) and be used for the horizontal girder through hole (6) that levels is cut off connection.
3. according to the said deposition overflow ballast tank of claim 2 based on anti-silt function; It is characterized in that; The above horizontal girder through hole (6) of adjacent bilevel said middle part horizontal girder (8) lays respectively at the both sides in said deposition cabin and offers, and is positioned at said horizontal girder through hole (6) on the said middle part horizontal girder (8) of bottom and is positioned at saidly to advance/the opposite side of water outlet (5).
4. according to the said deposition overflow ballast tank of claim 3, it is characterized in that said horizontal girder through hole (6) is provided with for the staggered mode of arranging of a plurality of apertures based on anti-silt function.
5. according to the said deposition overflow ballast tank of claim 3, it is characterized in that the said middle part of the equal altitudes through hole (9) on adjacent two said middle part floors (7) lays respectively at the both sides of said separately middle part floor (7) based on anti-silt function.
6. according to the said deposition overflow ballast tank of claim 5, it is characterized in that the said middle part of the equal altitudes through hole (9) on adjacent two said middle part floors (7) is positioned at the both sides setting with the center line symmetry of said middle part floor (7) based on anti-silt function.
7. according to the arbitrary said deposition overflow ballast tank of claim 1-6, it is characterized in that the ballast tank space of said hull bottom is positioned at hull bottom and is provided with and is used for ballast tank and advances/the ballast tank bottom suction inlet (4) of water outlet based on anti-silt function.
8. according to the said deposition overflow ballast tank of claim 7, it is characterized in that said middle part horizontal girder (8) is two-layer based on anti-silt function;
Said horizontal girder through hole (6) on lower floor's said middle part horizontal girder (8) is three apertures, is the isosceles triangle setting;
Said middle part, upper strata horizontal girder (8) is provided with said horizontal girder through hole (6) respectively in adjacent four partitions; And two said horizontal girder through holes of initial and end (6) are isosceles triangle by three apertures and constitute, in, two said horizontal girder through holes (6) are merely an aperture and are positioned at the middle part and are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200235624U CN202449173U (en) | 2012-01-17 | 2012-01-17 | Precipitation and overflowing ballast compartment with sediment preventing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200235624U CN202449173U (en) | 2012-01-17 | 2012-01-17 | Precipitation and overflowing ballast compartment with sediment preventing function |
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| Publication Number | Publication Date |
|---|---|
| CN202449173U true CN202449173U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200235624U Withdrawn - After Issue CN202449173U (en) | 2012-01-17 | 2012-01-17 | Precipitation and overflowing ballast compartment with sediment preventing function |
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| CN (1) | CN202449173U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204226A (en) * | 2012-01-17 | 2013-07-17 | 大连船舶重工集团有限公司 | Silt-preventing function-based sediment overflow ballast tank |
| CN104527929A (en) * | 2014-12-30 | 2015-04-22 | 广州文冲船厂有限责任公司 | Water ballast tank anti-sediment structure |
| CN106347579A (en) * | 2016-05-16 | 2017-01-25 | 武汉理工大学 | Through type water ballast tank |
| CN110450905A (en) * | 2019-08-29 | 2019-11-15 | 广船国际有限公司 | Transverse system rib structure and ship |
-
2012
- 2012-01-17 CN CN2012200235624U patent/CN202449173U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204226A (en) * | 2012-01-17 | 2013-07-17 | 大连船舶重工集团有限公司 | Silt-preventing function-based sediment overflow ballast tank |
| CN103204226B (en) * | 2012-01-17 | 2015-07-15 | 大连船舶重工集团有限公司 | Silt-preventing function-based sediment overflow ballast tank |
| CN104527929A (en) * | 2014-12-30 | 2015-04-22 | 广州文冲船厂有限责任公司 | Water ballast tank anti-sediment structure |
| CN106347579A (en) * | 2016-05-16 | 2017-01-25 | 武汉理工大学 | Through type water ballast tank |
| CN106347579B (en) * | 2016-05-16 | 2018-03-16 | 武汉理工大学 | A kind of through ballast tank |
| CN110450905A (en) * | 2019-08-29 | 2019-11-15 | 广船国际有限公司 | Transverse system rib structure and ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20150715 |
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| RGAV | Abandon patent right to avoid regrant |