CN113148045B - Stern structure and ship - Google Patents
Stern structure and ship Download PDFInfo
- Publication number
- CN113148045B CN113148045B CN202110648083.5A CN202110648083A CN113148045B CN 113148045 B CN113148045 B CN 113148045B CN 202110648083 A CN202110648083 A CN 202110648083A CN 113148045 B CN113148045 B CN 113148045B
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- ballast
- side wall
- cabin
- ship
- ballast tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000008093 supporting effect Effects 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000013535 sea water Substances 0.000 description 24
- 108010066114 cabin-2 Proteins 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the technical field of ships and discloses a stern structure and a ship. The stern structure comprises a cabin lower platform, a cabin, a ballast tank and a ballast pipe. The nacelle is placed under the nacelle lower platform. The ballast tank is arranged at the rear side of the cabin lower platform, the front side wall of the ballast tank is connected to the rear side wall of the cabin lower platform, the rear side wall of the cabin and the front side wall of the ballast tank are arranged at intervals to form an interval space, and the front side wall of the ballast tank is provided with a water flowing hole so that the ballast tank is communicated with the interval space. The ballast tube is arranged in the cabin, and one end port penetrates through the rear side wall of the cabin to be communicated with the interval space. The invention simplifies the structure of the ballast pipe, avoids the ballast pipe from penetrating through the lower platform of the cabin, and reduces the construction difficulty when the ballast pipe is arranged.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a stern structure and a ship.
Background
For bulk carriers, large ballast tanks are arranged from the bow to the stern to coordinate and adjust the sailing state of the ship. The stern area is a power plant output area of the whole ship, a space is required to be reserved for being provided with a propeller, and the ballast tank of the stern area is arranged above the propeller, so that the arrangement of the ballast tank of the stern is compact. Each ballast tank is provided with a ballast pipe with a larger diameter for filling or draining water into the ballast tank, and the draft state of the ship is adjusted in cooperation with the ballast tank. The suction inlet of the ballast tube needs to be positioned at the lowest point of the cabin of the ballast tank.
As shown in fig. 1, a lower cabin platform 1 is provided at the stern, a cabin 2 is provided below the lower cabin platform 1, a space ballast tank 3 is provided behind the cabin 2, a front side wall of the ballast tank 3 is connected to a rear side wall of the lower cabin platform 1, and a space 4 is formed among the lower cabin platform 1, the ballast tank 3, and the cabin 2. A first support plate 6 is vertically supported in the space 4. In order to improve the berthing efficiency, the pipe diameter of the ballast pipe 5 needs to be larger, and the volume of the suction inlet of the corresponding ballast pipe 5 is correspondingly increased. Due to the arrangement of the screw propeller, the outer plate at the bottom of the stern is gradually inclined downwards from the ballast tank 3 to the cabin 2, so that the lowest point of the stern ballast tank 3 is positioned at the intersection of the front side wall of the ballast tank 3 and the outer plate at the bottom, and the arrangement space of the suction inlet of the ballast pipe 5 is smaller and is difficult. Because of space arrangement requirements, ballast pipes 5 are arranged in the cabin 2 at present, and one ends of the ballast pipes 5 firstly pass through the cabin lower platform 1 upwards, then horizontally extend backwards, then penetrate into the front side wall of the ballast tank 3, and finally downwards extend to form suction inlets. In this arrangement, the lower cabin platform 1 needs to bear shipborne equipment, so that the structural strength requirement is high, a through hole with a larger aperture is not allowed to be formed for the ballast tube 5 to pass through, and the diameter of the ballast tube 5 is limited. In order to meet the diameter flow of the ballast pump, the suction inlet of the ballast pipe 5 adopts a horn-shaped reducing structure, so that the complexity of the structure is increased, and the construction difficulty is increased.
Based on this, there is a need for a stern structure and a ship for solving the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a stern structure, which simplifies the structure of a ballast tube, prevents the ballast tube from passing through a lower platform of a cabin and reduces the construction difficulty when the ballast tube is arranged.
To achieve the purpose, the invention adopts the following technical scheme:
a stern structure comprising:
a nacelle lower platform;
the cabin is arranged below the cabin lower platform;
the ballast tank is arranged at the rear side of the cabin lower platform, the front side wall of the ballast tank is connected with the rear side wall of the cabin lower platform, the rear side wall of the cabin and the front side wall of the ballast tank are arranged at intervals to form an interval space, and the front side wall of the ballast tank is provided with a water flowing hole so that the ballast tank is communicated with the interval space;
and the ballast tube is arranged in the cabin, and one end port penetrates through the rear side wall of the cabin and is communicated with the interval space.
Preferably, an auxiliary through hole is formed in the front side wall of the ballast tank, and the auxiliary through hole is arranged below the water flowing hole.
Preferably, the first support plate is vertically supported in the space, extends to the outer plates on two sides of the ship along the ship width, and is provided with a first through hole along the ship length direction, and the first through hole is arranged with the outer plates at the bottom of the space at intervals.
Preferably, a first through groove is formed in the bottom surface of the first support plate, the first through groove is arranged below the first through hole, and the first through groove is communicated to two end surfaces of the first support plate along the ship length direction.
Preferably, a second supporting plate is vertically supported in the ballast tank, a second through hole is formed in the second supporting plate along the ship length direction, and the second through hole is arranged at intervals with an outer plate at the bottom of the ballast tank.
Preferably, an anti-impact plate is arranged in the interval space and fixedly paved on an outer plate at the bottom of the ship.
Preferably, the ballast tube is sealingly connected to the rear side wall of the nacelle.
Preferably, an auxiliary assembly is arranged in the cabin, the auxiliary assembly comprises an auxiliary pipe and an auxiliary pump, one end port of the auxiliary pipe penetrates through the rear side wall of the cabin to be communicated with the interval space, the auxiliary pipe is arranged below the ballast pipe, and the other end of the auxiliary pipe is connected with the auxiliary pump.
Preferably, the ballast tank is internally and vertically supported with a second supporting plate, the second supporting plate extends to outer plates on two sides along the width of the ship, the second supporting plate is provided with a second through hole along the direction of the ship length, and the second through hole and the outer plates at the bottom of the ballast tank are arranged at intervals.
Another object of the present invention is to provide a ship in which the structure of the ballast pipe is simplified and the difficulty of construction is reduced when the ballast pipe is provided.
To achieve the purpose, the invention adopts the following technical scheme:
a vessel comprising a stern structure as described above.
The invention has the beneficial effects that: the ballast tank is provided with the water flowing holes, so that seawater can flow into or out of the ballast tank directly through the water flowing holes, the port of the ballast pipe is directly arranged on the rear side wall of the cabin, seawater injection or extraction is realized, the construction space is increased, the construction difficulty is reduced, the suction inlet with a different-diameter structure can be avoided, the structure of the ballast pipe is simplified, the ballast pipe is prevented from passing through the lower cabin platform, the trend of the ballast pipe is simplified, the limitation of the lower cabin platform on the pipe diameter of the ballast pipe is eliminated, the structural strength of the lower cabin platform is ensured, the ballast pipe with a larger pipe diameter can be used, the regulation efficiency of the water intake of a ship is improved, the suction inlet with a different-diameter structure is not required, the structural complexity and the construction difficulty are reduced, and the construction efficiency is ensured.
Drawings
FIG. 1 is a schematic view of a stern structure of the prior art;
FIG. 2 is a schematic view of a stern structure according to an embodiment of the present invention;
FIG. 3 is a top view of a stern structure provided by an embodiment of the present invention;
fig. 4 is a cross-sectional view taken along A-A in fig. 3.
In the figure:
1. a nacelle lower platform; 2. a nacelle; 3. a ballast tank; 31. a water flow hole;
4. a spacing space; 41. an anti-striking plate; 5. a ballast tube; 6. a first support plate; 61. a first through hole;
7. a second support plate; 71. a second through hole; 72. a second through slot; 8. and a fire pump cabin.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
The embodiment provides a stern structure. Specifically, as shown in fig. 2 to 4, the stern structure includes: a lower nacelle platform 1, a nacelle 2, a ballast tank 3 and ballast pipes 5. The cabin 2 is arranged below the cabin lower platform 1; the ballast tank 3 is arranged at the rear side of the cabin lower platform 1, the front side wall of the ballast tank 3 is connected with the rear side wall of the cabin lower platform 1, the rear side wall of the cabin 2 and the front side wall of the ballast tank 3 are arranged at intervals to form an interval space 4, and the front side wall of the ballast tank 3 is provided with a water flowing hole 31 so that the ballast tank 3 is communicated with the interval space 4; the ballast tube 5 is placed inside the nacelle 2 with one end port penetrating the rear side wall of the nacelle 2 in communication with the space 4. The water flowing holes 31 are formed, so that seawater can directly flow into or flow out of the ballast tank 3 through the water flowing holes 31, the ports of the ballast pipes 3 are directly arranged on the rear side wall of the cabin 2, seawater injection or extraction is realized, construction space is increased, construction difficulty is reduced, a suction inlet with a different-diameter structure can be avoided, the structure of the ballast pipe 5 is simplified, the ballast pipe 5 is prevented from penetrating through the cabin lower platform 1, the trend of the ballast pipe 5 is simplified, meanwhile, the limitation of the cabin lower platform 1 on the pipe diameter of the ballast pipe 5 is eliminated, the structural strength of the cabin lower platform 1 is ensured, the ballast pipe 5 with a larger pipe diameter can be used, the regulation efficiency of the draft of a ship is improved, the suction inlet with the different-diameter structure is not required, the structural complexity and the construction difficulty are reduced, and the construction efficiency is ensured.
In this embodiment, the front and rear are based on the forward direction of the ship, that is, the bow is forward and the stern is backward. Taking the direction of fig. 2 as an example, the right side of the stern structure is directed towards the bow.
In some embodiments, the stern structure further comprises a fire pump tank 8, the fire pump tank 8 being provided at a front side wall of the ballast tank 3. As shown in fig. 3 to 4, a water flow hole 31 is provided in each of the front side walls of the ballast tank 3 on both sides of the fire pump compartment 8.
In some embodiments, the front side wall of the ballast tank 3 is provided with an auxiliary through hole, the auxiliary through hole is arranged below the water flowing hole 31, and due to the structural strength requirement of the ballast tank 3, the water flowing hole 31 needs to be arranged at intervals with an outer plate at the bottom of a ship, so that seawater is stored in the front side wall of the ballast tank 3, and the auxiliary through hole is arranged, so that the outflow of the stored seawater is facilitated, and the adjustment of the draft of the ship is facilitated.
In some embodiments, the top of the water hole 31 is connected to the bottom surface of the cabin lower platform 1, the bottom is connected to the outer plate at the bottom of the ship, and the water hole 31 is provided with a plurality of water holes at intervals along the width direction on the front side wall of the ballast tank 3, so that the lowest point in the ballast tank 3 is directly communicated with the interval space 4, the seawater accumulation in the ballast tank 3 is avoided, and the regulation efficiency of the draught of the ship is further improved. And form the support column between two adjacent flow holes 31, the support column can support under the cabin platform 1, has guaranteed the supporting role to under the cabin platform 1 again.
In some embodiments, both sides of the water flow hole 31 extend in the width direction to outer plates connected to both sides of the ship, that is, the bottom of the ballast tank 3 is provided with the water flow hole 31 conforming to the profile of the side of the space 4, so that the space 4 is completely communicated with the ballast tank 3, further avoiding the accumulation of seawater inside the ballast tank 3, and further improving the adjustment efficiency of the draft of the ship. Further, in order to ensure a supporting effect for the nacelle lower platform 1,
as a preferable scheme, the ballast tube 5 is in sealing connection with the rear side wall of the cabin 2, so that the water tightness of the cabin 2 is ensured, the water inlet of equipment in the cabin 2 is avoided, the stable running of the ship body is ensured, and the safety is also improved. In this embodiment, the ballast tube 5 is welded to the rear side wall of the nacelle 2, and in order to further ensure the tightness, the ballast tube 5 is welded to both the front end face and the rear end face of the rear side wall of the nacelle 2, and the tightness is ensured by two times of welding.
Due to the installation requirement of the ballast pipe 5, the ballast pipe 5 and the ship bottom outer plate are arranged at intervals, so that a certain amount of seawater is always accumulated in the interval space 4. Preferably, an auxiliary assembly is provided within the nacelle 2. The auxiliary assembly comprises an auxiliary pipe and an auxiliary pump, one end port of the auxiliary pipe penetrates through the rear side wall of the engine room 2 and is communicated with the interval space 4, the auxiliary pipe is arranged below the ballast pipe 5, the other end of the auxiliary pipe is connected to the auxiliary pump, the auxiliary pipe is convenient for reducing the sea water accumulation, the accumulated sea water is discharged, the effect of adjusting the draft of the ship is guaranteed, and the adjusting efficiency of the draft of the ship is also improved. The auxiliary pump also provides power for pumping seawater, so that the pumping efficiency is ensured, and the degree of automation is improved. Further, an auxiliary pipe is sealingly connected to the rear side wall of the nacelle 2, the top of the auxiliary pipe being lower than the bottom of the ballast pipe 5. In order to further ensure the pumping effect, the end part of the auxiliary pipe can be connected with a hose, the hose is arranged in the interval space 4 and extends downwards to the lowest point of the interval space 4, so that the accumulated seawater can be pumped out as much as possible, and the effect of adjusting the draft of the ship is further ensured.
The cabin lower platform 1 needs to have a good structural strength due to the carrying of the on-board equipment. Preferably, the first support plate 6 is vertically supported inside the compartment 4, ensuring the supporting effect of the compartment 4 for the nacelle lower platform 1. The both sides of the first support plate 6 extend to the outer plates of the both sides of the ship along the ship width, and the top surface of the first support plate 6 is connected to the cabin lower platform 1, and the bottom surface of the first support plate 6 is connected to the outer plates. The first support plate 6 is provided with a first through hole 61 along the ship's length direction, and the first through hole 61 is arranged at intervals with the outer plate at the bottom of the interval space 4. The first support plate 6 is arranged, the effect of supporting the cabin lower platform 1 is achieved, the bearing function of the cabin lower platform 1 is guaranteed, and the first through holes 61 can also guarantee that seawater can flow to the rear side wall of the cabin 2 through the first support plate 6 and flow out through the ballast tube 5. In the present embodiment, the first support plate 6 is welded to the ship outer plate and the nacelle lower platform 1.
In the present embodiment, in order to secure the structural strength of the first support plate 6, the first through holes 61 need to be provided at intervals from the outer plate at the bottom of the ship, resulting in the accumulation of seawater at the first support plate 6. Preferably, the first support plate 6 is provided with a first through groove (not shown in the figure), which is disposed below the first through hole 61 and is connected to both end surfaces of the first support plate 6 in the ship's length direction. The first through groove can be used for allowing the seawater stored in the first supporting plate 6 to pass through, so that more seawater stored in the interval space 4 is avoided, and the influence on the adjustment of the draft of the ship is avoided. The first through grooves can be arranged at intervals along the width direction of the ship, and the grooving area of the first through grooves needs to ensure the connection strength between the bottom surface of the first supporting plate 6 and the outer plate at the bottom of the ship. The first through grooves are provided with three in particular, wherein two first through grooves are respectively arranged on two sides of the first supporting plate 6 along the ship width direction, and the other first through grooves are arranged in the middle of the first supporting plate 6 along the ship width direction. In other embodiments, the number of the first through slots can be adaptively adjusted according to actual requirements, which is not limited herein.
In the present embodiment, the first support plate 6 is provided with one. In other embodiments, the first support plates 6 are arranged in parallel and at intervals along the ship length direction, so that the supporting effect on the lower cabin platform 1 is further ensured, the structural strength of the lower cabin platform 1 is ensured, and the influence of the water flow holes 31 on the structural strength of the ship is reduced.
As the preferable scheme, be equipped with in the interval space 4 and prevent hitting board 41, prevent hitting board 41 fixed the laying on the planking of boats and ships bottom, when the sea water is poured into interval space 4 in, prevent hitting board 41 can contact with the sea water earlier, buffer the impact force of sea water to the planking, avoided the planking to be destroyed, protected boats and ships, also improved the security. In the present embodiment, the striking plate 41 is made of stainless steel and is welded to the outer plate. One striking plate 41 (only one shown in fig. 2) is provided on both sides of the first support plate 6. In other embodiments, the bottom of the anti-impact plate 41 may be disposed parallel to the outer plate at the bottom of the ship, and a plurality of springs are disposed between the anti-impact plate 41 and the outer plate, and the springs are connected between the anti-impact plate 41 and the outer plate by welding, and the plurality of springs are arranged in an array.
Further, the second supporting plates 7 are vertically supported in the ballast tank 3, and the second supporting plates 7 extend to outer plates on two sides along the width of the ship, so that the structural strength of the ballast tank 3 is ensured. The second support plate 7 is provided with second through holes 71 along the ship's length direction, and the second through holes 71 are arranged at intervals with the outer plates at the bottom of the ballast tank 3. And the second through holes 71 are also provided to ensure that seawater can flow through the second support plate 7 to the space 4 and thus to the rear side wall of the nacelle 2 and out through the ballast tube 5. In this embodiment, the second support plate 7 and the ship outer plate are all connected by welding.
In order to secure the structural strength of the second support plate 7, the second through hole 71 needs to be spaced from the outer plate of the bottom of the ship in the same manner as the first through hole 61, resulting in accumulation of seawater at the second support plate 7. Preferably, the second support plate 7 is provided with a second through groove 72, the second through groove 72 is arranged below the second through hole 71, and the second through groove 72 is communicated to two end surfaces of the second support plate 7 along the ship length direction. The second through groove 72 can allow the seawater stored in the second supporting plate 7 to pass through, so that the seawater stored in the ballast tank 3 is prevented from being more stored, and the adjusting effect of the draft of the ship is ensured. The grooved area of the second through groove 72 needs to ensure the connection strength between the bottom surface of the second support plate 7 and the ship bottom outer plate. The second through groove 72 is provided specifically one at the middle of the second support plate 7 in the ship width direction. In other embodiments, the second through slot 72 may be provided with a plurality of through slots, and the specific number of the through slots may be adaptively adjusted according to actual requirements, which is not limited herein.
The embodiment also provides a ship. The vessel comprises a stern structure as hereinbefore described.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. A stern structure comprising:
a cabin lower platform (1);
-a nacelle (2) placed under the nacelle lower platform (1);
the ballast tank (3) is arranged at the rear side of the cabin lower platform (1), the front side wall of the ballast tank (3) is connected to the rear side wall of the cabin lower platform (1), the rear side wall of the cabin (2) and the front side wall of the ballast tank (3) are arranged at intervals to form an interval space (4), and the front side wall of the ballast tank (3) is provided with a water flowing hole (31) so that the ballast tank (3) is communicated with the interval space (4);
a ballast tube (5), wherein the ballast tube (5) is arranged in the cabin (2), and one end port penetrates through the rear side wall of the cabin (2) and is communicated with the interval space (4);
an auxiliary through hole is formed in the front side wall of the ballast tank (3), and the auxiliary through hole is arranged below the water flowing hole (31);
the inner part of the spacing space (4) is vertically supported with a first supporting plate (6), the first supporting plate (6) extends to outer plates at two sides of the ship along the ship width, the first supporting plate (6) is provided with a first through hole (61) along the ship length direction, and the first through hole (61) and the outer plates at the bottom of the spacing space (4) are arranged at intervals;
an anti-impact plate (41) is arranged in the interval space (4), and the anti-impact plate (41) is fixedly paved on an outer plate at the bottom of the ship.
2. Stern structure according to claim 1, characterized in that the first support plate (6) is provided with a first through slot which is arranged below the first through hole (61) and which runs through in the direction of the ship length to both end faces of the first support plate (6).
3. The stern structure according to claim 1, wherein a second support plate (7) is vertically supported in the ballast tank (3), the second support plate (7) extends to outer plates on two sides of the ship along the ship width, a second through hole (71) is formed in the second support plate (7) along the ship length direction, and the second through hole (71) is arranged at intervals with the outer plates on the bottom of the ballast tank (3).
4. A stern structure according to any of claims 1-3, wherein an auxiliary assembly is provided in the nacelle (2), the auxiliary assembly comprising an auxiliary pipe and an auxiliary pump, one end port of the auxiliary pipe being provided through the rear side wall of the nacelle (2) in communication with the spacing space (4), and the auxiliary pipe being placed under the ballast pipe (5), the other end of the auxiliary pipe being connected to the auxiliary pump.
5. A stern structure according to any of claims 1-3, wherein the ballast tube (5) is sealingly connected to the rear side wall of the nacelle (2).
6. Stern structure according to claim 5, wherein the ballast tube (5) is welded to both the front and rear end faces of the rear side wall of the nacelle (2).
7. A vessel comprising a stern structure as claimed in any one of claims 1 to 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110648083.5A CN113148045B (en) | 2021-06-10 | 2021-06-10 | Stern structure and ship |
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CN202110648083.5A CN113148045B (en) | 2021-06-10 | 2021-06-10 | Stern structure and ship |
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CN113148045A CN113148045A (en) | 2021-07-23 |
CN113148045B true CN113148045B (en) | 2023-12-05 |
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Citations (6)
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JP2007176341A (en) * | 2005-12-28 | 2007-07-12 | Eiyu Kaiun Kk | Structure for laying cargo ship ballast pipe |
KR20090089069A (en) * | 2008-02-18 | 2009-08-21 | 대우조선해양 주식회사 | The ballast system of ship |
JP2012076726A (en) * | 2010-09-30 | 2012-04-19 | Eiji Koike | Ballast pumping and drainage device |
CN105015705A (en) * | 2015-08-10 | 2015-11-04 | 广船国际有限公司 | Ballast-water-free ship and operating method thereof |
CN207712241U (en) * | 2017-12-31 | 2018-08-10 | 大连船舶重工集团有限公司 | Install the cabin of ballast water filter bulk freighter additional |
CN110053733A (en) * | 2019-04-29 | 2019-07-26 | 广船国际有限公司 | A kind of ballast tank discharge orifice method for arranging |
-
2021
- 2021-06-10 CN CN202110648083.5A patent/CN113148045B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007176341A (en) * | 2005-12-28 | 2007-07-12 | Eiyu Kaiun Kk | Structure for laying cargo ship ballast pipe |
KR20090089069A (en) * | 2008-02-18 | 2009-08-21 | 대우조선해양 주식회사 | The ballast system of ship |
JP2012076726A (en) * | 2010-09-30 | 2012-04-19 | Eiji Koike | Ballast pumping and drainage device |
CN105015705A (en) * | 2015-08-10 | 2015-11-04 | 广船国际有限公司 | Ballast-water-free ship and operating method thereof |
CN207712241U (en) * | 2017-12-31 | 2018-08-10 | 大连船舶重工集团有限公司 | Install the cabin of ballast water filter bulk freighter additional |
CN110053733A (en) * | 2019-04-29 | 2019-07-26 | 广船国际有限公司 | A kind of ballast tank discharge orifice method for arranging |
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