An oil spill recovery vessel stern structure

Abstract

This invention relates to the field of marine technology, specifically disclosing a bilge structure for an oil spill recovery vessel, including an outer bilge plate, ribs, a sealing plate, a lower bilge elbow plate face panel, a lower bilge elbow plate web, and an upper bilge elbow plate; the two ends of the outer bilge plate are respectively connected to the side plates and the bottom plate, and ribs are provided on the inner side of the outer bilge plate away from the bottom plate; the ribs are located on the inner side of the bottom plate, and the ribs are provided with an inner bottom plate and an inner bottom folded edge plate, forming a groove between the inner bottom folded edge plate and the outer bilge plate; the sealing plate is located above the groove; the lower bilge elbow plate face panel is located at the bottom of the sealing plate; the lower bilge elbow plate web is located in the groove; the upper bilge elbow plate is located above the lower bilge elbow plate face panel and is used to connect the lower bilge elbow plate face panel and the ribs; wherein, the outer bilge plate, the inner bottom folded edge plate, the sealing plate, the lower bilge elbow plate face panel, and the lower bilge elbow plate web together form a closed structure, and the closed structure is filled with filling material. This invention eliminates the bilge grooves in the prior art, thereby improving the efficiency of residual oil extraction and cabin cleaning.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a bilge structure for an oil spill recovery vessel. Background Technology

[0002] Currently, due to the hull lines, the inner bottom plate of the double bottom area and the outer bilge plate may form a small angle, posing construction difficulties. Therefore, the inner bottom edge plate needs to be folded downwards to increase its angle with the outer bilge plate. However, this also creates a groove structure between each bilge elbow plate in the bilge. The groove structure in the bilge of the oil spill recovery tank has the following main problems:

[0003] 1. It causes significant trouble for the pumping out of residual oil and cleaning the tank, increasing the time and cost of tank cleaning work;

[0004] 2. To facilitate tank cleaning, the groove must be filled smoothly. Since the groove is located inside the oil spill recovery tank, it is not permissible to create a sealed structure here; furthermore, because the inner bottom of part of the recovery tank is longitudinally inclined, it is difficult to fill the open groove with material that is initially in a liquid state.

[0005] 3. A closed structure combined with filling materials is used to fill the grooves. Commonly considered filling materials include cement and foam. However, cement is not recommended because it is prone to gaps or even detachment from the hull after hardening under prolonged external loads and thermal expansion and contraction. Foam is also difficult to fill completely in enclosed spaces, and if it cannot be completely filled, it may create small, sealed spaces, which is also unacceptable. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: how to eliminate the bilge groove in the prior art in order to improve the efficiency of residual oil extraction and cabin cleaning.

[0007] To address the aforementioned technical problems, this invention provides a bilge structure for an oil spill recovery vessel, disposed between the side structure and the bottom structure, comprising:

[0008] Bulging outer plating, with its two ends connected to the side plating and the bottom plating respectively, and ribs provided on the inner side of the bilging outer plating away from the bottom plating;

[0009] A rib is provided on the inner side of the bottom plate. The rib is provided with an inner bottom plate and an inner bottom folded edge plate. A groove is formed between the inner bottom folded edge plate and the outer plate of the bilge.

[0010] A sealing plate is provided above the groove;

[0011] The lower bilge elbow plate panel is located at the bottom of the sealing plate;

[0012] The lower bilge elbow plate web is disposed within the groove; and

[0013] The upper bilge plate is located above the lower bilge plate panel and is used to connect the lower bilge plate panel and the ribs.

[0014] The outer bilge plate, inner bottom folded edge plate, sealing plate, lower bilge elbow plate panel, and lower bilge elbow plate web plate together form a closed structure, and the closed structure is filled with a filling material, which is asphalt.

[0015] More preferably, the upper bilge elbow plate is located above the closed structure.

[0016] More preferably, the sealing plate has an injection hole for injecting the filler material.

[0017] More preferably, the sealing plate is also provided with vent holes for exhaust.

[0018] More preferably, the lower bilge elbow plate panel is horizontally set. When the inner bottom plate has a longitudinal inclination, the lower bilge elbow plate panel should maintain the same inclination angle as the inner bottom plate, and the setting height of the lower bilge elbow plate panel is the same as the height of the end of the inner bottom plate near the groove.

[0019] More preferably, a gap is reserved at one end of the upper bilge elbow plate near the inner bottom plate; a through hole is provided at the lower end of the upper bilge elbow plate near the hull side.

[0020] More preferably, the enclosed structure has multiple ribs above it, the sealing plate is disposed between two adjacent ribs, and the sealing plate overlaps the lower bilge plate panel, forming an independent enclosed space between the sealing plate and each rib.

[0021] More preferably, a gap is reserved between the sealing plate and the upper bilge plate.

[0022] The bilge structure of an oil spill recovery vessel provided by this invention has the following advantages compared with the prior art:

[0023] 1. By forming a closed structure together with the outer bilge plate, inner bottom folded edge plate, sealing plate, lower bilge elbow plate panel and lower bilge elbow plate web plate, and then filling the closed structure with filling material, the problem of not being able to use open filling with liquid material in the initial state due to the longitudinal inclination of the inner bottom can be solved, and the problem of creating a closed space in the bilge of the oil tank can be avoided.

[0024] 2. Using asphalt as a filler material can effectively solve the problem of filling such enclosed spaces. Moreover, the asphalt after solidification has better ductility than the cement after solidification. It is not easy to form gaps or separate from the hull after the hull is subjected to external loads and thermal expansion and contraction for a long time.

[0025] 3. After the bilge structure inside the oil spill recovery tank is sealed and filled, the structure here is flat and simple, and there will be no oil accumulation due to the presence of grooves. It is easier to suck up and clean the recovered oil in the tank, and reduces the number of suction ports and pipelines inside the tank. Usually, the recovery tank needs to be cleaned once after each recovery of sludge. For oil spill recovery vessels that need to be cleaned frequently, the tank structure with as few obstructions as possible and a flat interior can save cleaning time and manpower, and effectively reduce the ship's operating costs. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the oil spill recovery vessel described in this invention.

[0027] Figure 2 This is the present invention. Figure 1 Enlarged diagram of point A in the middle.

[0028] Figure 3 This is a plan view of the bilge portion of the present invention.

[0029] Figure 4 This is the present invention. Figure 3 A sectional view of section BB in the middle.

[0030] Figure 5 This is a plan view of the inner bottom of the oil spill recovery vessel described in this invention.

[0031] In the diagram: 1. Side plating; 2. Bottom plating; 3. Bilge outer plating; 4. Rib plating; 5. Inner bottom plating; 6. Rib; 7. Oil spill recovery tank; 8. Sealing plate; 9. Lower bilge elbow plate panel; 10. Lower bilge elbow plate web; 11. Upper bilge elbow plate; 12. Inner bottom folded edge plate; 13. Filler material; 14. Vent hole; 15. Injection hole. Detailed Implementation

[0032] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "inner", "outer", "between", "near", "far away", "end", "both sides / ends" and other terms used in this invention to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two components. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0035] This embodiment provides a bilge structure for an oil spill recovery vessel, located between the side structure and the bottom structure. It should be noted that... Figure 1 As shown, the side structure includes side plate 1, the bottom structure includes bottom plate 2, and the ends of side plate 1 and bottom plate 2 are connected by bilge outer plate 3 and other hull structures to form oil spill recovery tank 7.

[0036] Specifically, the bilge structure of the oil spill recovery vessel includes an outer bilge plate 3, an inner bottom folded edge plate 12, a sealing plate 8, a lower bilge elbow plate panel 9, a lower bilge elbow plate web plate 10, and an upper bilge elbow plate 11.

[0037] In specific embodiments, please refer to Figure 1-5 To understand this, the two ends of the bilge outer plate 3 are respectively connected to the side plate 1 and the bottom plate 2. The inner side of the bilge outer plate 3 away from the bottom plate 2 is provided with ribs 6. Ribs 4 are provided on the inner side of the bottom plate 2. Ribs 4 are provided with an inner bottom plate 5 and an inner bottom folded edge plate 12. The inner bottom folded edge plate 12 and the bilge outer plate 3 form a groove. The sealing plate 8 is provided above the groove. The lower bilge elbow plate face plate 9 is provided at the bottom of the sealing plate 8. The lower bilge elbow plate web plate 10 is provided in the groove. The upper bilge elbow plate 11 is provided above the lower bilge elbow plate face plate 9 and is used to connect the ribs 4 and ribs 6. The outer bilge plate 3, the inner bottom folded edge plate 12, the sealing plate 8, the lower bilge elbow plate panel 9, and the lower bilge elbow plate web plate 10 together form a closed structure. In this way, by forming a closed structure together, and then filling the closed structure with filling material 13, the problem of not being able to use open filling with liquid material in the initial state due to the longitudinal inclination of the inner bottom can be solved, and the problem of a closed space being generated in the bilge of the oil tank can be avoided.

[0038] In a specific embodiment, the enclosed structure is provided with a filling material 13, which is asphalt. Using asphalt as a filling material can effectively solve the problem of difficulty in filling such enclosed spaces, and the solidified asphalt has better ductility than solidified cement, so it is not easy to form gaps or detach from the hull after the ship is subjected to external loads and thermal expansion and contraction for a long time.

[0039] In addition, after the asphalt filling the bilge enclosure has completely solidified, the bilge structure is sprayed with the same protective paint as the recovery tank to protect the tank structure and filling materials from corrosion. After the bilge structure in the oil spill recovery tank is sealed and filled, the structure here is flat and simple, and there will be no oil accumulation due to the presence of grooves. This makes it easier to suck up and clean the recovered oil in the tank, and reduces the number of suction ports and pipelines in the tank.

[0040] It should be noted that the recovery tank usually needs to be cleaned every time oil spill is recovered. For oil spill recovery vessels that require frequent tank cleaning, a tank structure with as few obstructions as possible and a flat interior can save cleaning time and manpower, effectively reducing the vessel's operating costs.

[0041] In some embodiments, the upper bilge plate 11 is located above the closed structure and is used to connect the lower bilge plate and the rib 6.

[0042] In some embodiments, the sealing plate 8 has an injection hole 15 for injecting filler material 13 to facilitate the injection of asphalt into the closed structure.

[0043] In some embodiments, the sealing plate 8 is also provided with a vent hole 14 for venting, which is used to vent air when the asphalt is filled, so as to ensure that the asphalt can fill the entire closed structure and avoid the formation of air chambers.

[0044] In some embodiments, if there is a longitudinal inclination, an injection hole 15 with an opening size suitable for asphalt filling and a vent hole 14 with an opening size suitable for venting during asphalt filling should be provided on the sealing plate 8 at the higher end. Since each rib is a separate space, it is relatively easy to fill the individual space. After filling the groove space, asphalt is then used to fill the injection hole 15 and vent hole 14 to the upper surface of the sealing plate, making its upper surface smooth. The asphalt is liquid during filling and becomes solid after complete solidification. Moreover, the solidified asphalt has better ductility than solidified cement, and is less likely to form gaps or detach from the hull after the hull is subjected to external loads and thermal expansion and contraction for a long time.

[0045] In some embodiments, the lower bilge elbow plate panel 9 is horizontally positioned, and its height is the same as the height of the end of the inner bottom plate 5 near the groove. In other embodiments, when the inner bottom plate 5 is longitudinally inclined, the lower bilge elbow plate panel 9 should maintain the same inclination angle as the inner bottom plate 5.

[0046] In some embodiments, a gap is reserved at one end of the upper bilge elbow plate 11 near the inner bottom plate 5 so that the end can be filled with fillet weld; a through hole is provided at the lower end of the upper bilge elbow plate 11 near the hull side, which can be used as a welding hole and a drainage hole.

[0047] In some embodiments, multiple ribs are formed above the closed structure, and the sealing plate 1 is disposed between two adjacent ribs. The sealing plate 8 overlaps on the lower bilge plate panel 9, and an independent closed space is formed between the sealing plate 8 and each rib.

[0048] In the above embodiment, it should be noted that the oil recovery can flow between each rib position above the closed structure. No through-welding holes or drainage holes are provided at the end of the lower bilge plate web 10, allowing the structure between each rib position to form a separate space.

[0049] In some embodiments, a gap is reserved between the sealing plate 8 and the upper bilge elbow plate 11 so that the gap can be filled by welding after assembly and positioning, so that each rib of the lower bilge section of the sealing plate 8 forms an independent closed structure.

[0050] In summary, the bilge structure of an oil spill recovery vessel provided by this embodiment of the invention, by forming a closed structure together with the outer bilge plate 3, the inner bottom folded edge plate 12, the sealing plate 8, the lower bilge elbow plate panel 9, and the lower bilge elbow plate web plate 10, and then filling the closed structure with filler material 13, can solve the problem of not being able to use open filling with initially liquid material due to the longitudinal inclination of the inner bottom, and also avoid the problem of a closed space being generated in the bilge of the oil tank; using asphalt as filler material can better solve the problem of difficulty in filling such closed spaces, and the solidified asphalt is relatively solid. The solidified cement has good ductility and is not prone to gaps or separation from the hull after prolonged exposure to external loads and thermal expansion and contraction. After the bilge structure inside the oil spill recovery tank is sealed and filled, the structure is flat and simple, preventing oil accumulation due to grooves, and facilitating the suction, discharge, and cleaning of recovered oil inside the tank, reducing the need for suction ports and pipelines. Typically, the recovery tank needs to be cleaned after each oil spill recovery. For oil spill recovery vessels that require frequent tank cleaning, a flat and unobstructed internal structure can save cleaning time and manpower, effectively reducing ship operating costs.

[0051] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be considered exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bilge structure for an oil spill recovery vessel, located between the side structure and the bottom structure, characterized in that, include: Bulging outer plating, with its two ends connected to the side plating and the bottom plating respectively, and ribs provided on the inner side of the bilging outer plating away from the bottom plating; A rib is provided on the inner side of the bottom plate. The rib is provided with an inner bottom plate and an inner bottom folded edge plate. A groove is formed between the inner bottom folded edge plate and the outer plate of the bilge. A sealing plate is provided above the groove; The lower bilge elbow plate panel is located at the bottom of the sealing plate; The lower bilge elbow plate web is disposed within the groove; as well as The upper bilge plate is located above the lower bilge plate panel and is used to connect the lower bilge plate panel and the ribs. The outer bilge plate, inner bottom folded edge plate, sealing plate, lower bilge elbow plate panel, and lower bilge elbow plate web plate together form a closed structure, and the closed structure is filled with a filling material, which is asphalt.

2. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, The upper bilge elbow plate is located above the closed structure.

3. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, The sealing plate has an injection hole for injecting the filling material.

4. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, The sealing plate is also provided with vent holes for exhaust.

5. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, The lower bilge elbow plate panel is horizontally set. When the inner bottom plate is longitudinally inclined, the lower bilge elbow plate panel should maintain the same inclination angle as the inner bottom plate, and the setting height of the lower bilge elbow plate panel is the same as the height of the end of the inner bottom plate near the groove.

6. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, A gap is reserved at one end of the upper bilge elbow plate near the inner bottom plate; a through hole is opened at the lower end of the upper bilge elbow plate near the hull side.

7. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, The enclosed structure has multiple ribs above it, and the sealing plate is located between two adjacent ribs. The sealing plate overlaps the lower bilge plate panel, and the sealing plate and each rib form an independent enclosed space.

8. The bilge structure of an oil spill recovery vessel according to claim 1, characterized in that, A gap is reserved between the sealing plate and the upper bilge elbow plate.

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