Oil storage device and hull

Abstract

The application discloses an oil storage device and a ship body. The oil storage device comprises an oil tank, a first pipeline and a second pipeline. An oil storage space is formed in the oil tank. The first pipeline is in communication with the oil storage space, and the distance from the opening of the first pipeline to the bottom wall of the oil storage space is a first distance. The second pipeline is in communication with the oil storage space, and the distance from the opening of the second pipeline to the bottom wall of the oil storage space is a second distance. The first distance is greater than the second distance. The height difference formed by the openings of the first pipeline and the second pipeline in the oil tank forms a liquid level potential energy gradient. Light fluid or heavy liquid can be injected through one of the pipelines, the buoyancy environment of the oil in the tank is changed, the oil is floated and gathered or sinks and separated, and the oil is efficiently discharged from the other pipeline.

Description

Technical Field

[0001] This application relates to the field of shipbuilding technology, and in particular to an oil storage device and a ship hull. Background Technology

[0002] Currently, when ships run aground or sink at sea or inland waterways, the large amount of oil they carry cannot be recovered quickly, posing a risk of oil spills into the marine environment or inland waterways, leading to serious pollution.

[0003] When a ship runs aground or capsizes, it is necessary to open the bulkheads of the fuel tanks for oil recovery. However, there is still a risk of oil leakage during the operation. Therefore, in order to effectively reduce the risk of oil leakage and avoid marine environmental and water pollution, there is an urgent need for a device to recover oil from fuel tanks. Utility Model Content

[0004] This application provides an oil storage device and a ship hull.

[0005] The first aspect of this application provides an oil storage device, comprising: an oil tank, a first pipeline, and a second pipeline; An oil storage space is formed inside the oil tank; a first pipeline is connected to the oil storage space, and the distance from the opening of the first pipeline to the bottom wall of the oil storage space is a first distance; a second pipeline is connected to the oil storage space, and the distance from the opening of the second pipeline to the bottom wall of the oil storage space is a second distance; wherein, the first distance is greater than the second distance.

[0006] In some embodiments, the first pipeline includes a first inlet and a first outlet; the second pipeline includes a second inlet and a second outlet; both the first inlet and the second inlet are located outside the oil tank; the first outlet is located away from the bottom wall and the distance between it and the bottom wall is a first distance; the second outlet is located close to the bottom wall of the oil tank and the distance between it and the bottom wall is a second distance.

[0007] In some embodiments, when the oil tank is in the first position, the first pipeline is an oil discharge pipeline and the second pipeline is a water inlet pipeline. Water is injected through the second inlet and flows to the bottom wall of the oil storage space through the second outlet, thereby causing the oil to float up and flow into the first outlet and be discharged from the oil tank through the first inlet.

[0008] In some embodiments, when the oil tank is in the second position, the first pipeline is a water inlet pipeline and the second pipeline is an oil outlet pipeline. Water is injected through the first inlet and flows into the oil storage space through the first outlet, thereby causing the oil to float to the second outlet and be discharged from the oil tank through the first inlet.

[0009] In some embodiments, when the oil tank is in the first position, the second pipeline is an oil discharge pipeline and the first pipeline is an air intake pipeline. Compressed air is injected through the first inlet and enters the oil storage space through the first outlet, thereby pressurizing the oil to enter the second outlet and discharge it from the oil tank through the second inlet.

[0010] In some embodiments, when the oil tank is in the second position, the first pipeline is an oil discharge pipeline and the second pipeline is an air intake pipeline. Compressed air is injected through the second inlet and enters the oil storage space through the second outlet, thereby pressurizing the oil to enter the first outlet and discharge it from the oil tank through the first inlet.

[0011] In some embodiments, the bottom wall of the oil storage space is rectangular, and the first outlet and the second outlet are orthographically projected and spaced apart along the diagonal of the bottom wall.

[0012] In some embodiments, the system further includes: two sealing elements, which are detachably disposed at the first inlet and the second inlet respectively, to seal the oil tank.

[0013] The second aspect of this application proposes a hull including oil storage facilities; an open deck; a main deck, the main deck and the open deck being spaced apart, and a cargo hold being provided between the main deck and the open deck; and an oil tank being located on the side of the main deck away from the cargo hold.

[0014] In some embodiments, both the first and second pipelines extend into the cargo hold and are located close to the ship's side.

[0015] Compared to existing technologies, by utilizing the height difference between the openings of the first and second pipelines within the oil tank to create a liquid level potential energy gradient, it is possible to inject light or heavy fluids through one of the pipelines, thereby altering the buoyancy environment of the oil within the tank and enabling the oil to either float and accumulate or sink and separate, thus guiding it to be efficiently discharged through the other pipeline. Attached Figure Description

[0016] Figure 1 A schematic diagram of the oil storage equipment provided for the purposes of this disclosure; Figure 2 A simplified structural diagram of the oil storage equipment provided for the purposes of this disclosure; Figure 3 A schematic diagram of the first and second outlets projected onto the bottom wall of the oil tank, which is provided for the purposes of this disclosure; Figure 4 A structural diagram of the hull provided for the purposes of this disclosure.

[0017] Numbering on the map: 01. Oil storage equipment; 10. Oil tank; 20. First pipeline; 21. First inlet; 22. First outlet; 30. Second pipeline; 31. Second inlet; 32. Second outlet; 40. Sealing component; 50. Open deck; 60. Main deck; 70. Ship's side; L1. First distance; L2. Second distance. Detailed Implementation

[0018] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0019] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0020] In the event of ship grounding, collision, or capsizing, oil tanks (such as fuel oil tanks and cargo oil tanks) may leak due to structural deformation or rupture, causing serious marine pollution. Traditional emergency measures often require perforating the oil tanks at the accident site to pump out the remaining oil. However, the perforation operation itself may compromise the integrity of the tank hull, and improper operation or damage to the hull can easily lead to secondary leaks. Therefore, there is an urgent need for an oil storage device structure that can achieve safe and controllable oil recovery without significantly increasing the risk of leakage.

[0021] like Figure 1-2 As shown, the first aspect of this application proposes an oil storage device 01, including: an oil tank 10, a first pipeline 20 and a second pipeline 30; An oil storage space is formed inside the oil tank 10; a first pipeline 20 is connected to the oil storage space, and the distance from the opening of the first pipeline 20 to the bottom wall of the oil storage space is a first distance L1; a second pipeline 30 is connected to the oil storage space, and the distance from the opening of the second pipeline 30 to the bottom wall of the oil storage space is a second distance L2; wherein, the first distance L1 is greater than the second distance L2.

[0022] Understandably, the oil tank 10 is a sealed container used to store oil (such as heavy oil, diesel, etc.), forming an oil storage space inside. The first pipeline 20 is connected to the upper area of ​​the oil storage space, and its opening is located at a first distance L1 from the bottom wall of the oil storage space. The second pipeline 30 is connected to the lower area of ​​the oil storage space, and its opening is located at a second distance L2 from the bottom wall of the oil storage space, and the first distance L1 is greater than the second distance L2.

[0023] Due to the arrangement of the opening positions of the first pipe 20 and the second pipe 30, there is a height difference in the oil tank 10. During the oil extraction process, the height difference between the first pipe 20 and the second pipe 30 (i.e., the first distance L1 is greater than the second distance L2) is used to form a liquid level potential energy gradient. Light fluids (such as inert gases) or heavy liquids (such as seawater or ballast water) are injected through one of the pipes to change the buoyancy environment of the oil in the tank, so as to achieve the upward accumulation or downward separation of the oil, thereby guiding it to be efficiently discharged from the other pipe.

[0024] In some embodiments, the first pipeline 20 includes a first inlet 21 and a first outlet 22; the second pipeline 30 includes a second inlet 31 and a second outlet 32; the first inlet 21 and the second inlet 31 are both located outside the oil tank 10, the first outlet 22 is located away from the bottom wall and the distance between it and the bottom wall is a first distance L1; the second outlet 32 ​​is located close to the bottom wall of the oil tank 10 and the distance between it and the bottom wall is a second distance L2.

[0025] Understandably, the first pipeline 20 can be one of an oil drain pipeline, a water inlet pipeline, or an air inlet pipeline, and the first outlet 22 is the opening of the first pipeline 20; the second pipeline 30 can also be one of an oil drain pipeline, a water inlet pipeline, or an air inlet pipeline, and the second outlet 32 ​​is the opening of the second pipeline 30. The specific functions of the first pipeline 20 and the second pipeline 30 are determined based on the position of the fuel tank.

[0026] In some embodiments, when the oil tank is in the first position, the first pipeline 20 is an oil discharge pipeline and the second pipeline 30 is a water inlet pipeline. Water is injected through the second inlet 31 and flows to the bottom wall of the oil storage space through the second outlet 32, thereby causing the oil to float up and flow into the first outlet 22 and be discharged from the oil tank through the first inlet 21.

[0027] Understandably, when the oil tank 10 is in its first position, such as a normal upright or slightly tilted state, a "bottom water injection, top oil discharge" replacement and recovery mode is adopted. In this mode, the first pipeline 20 serves as the oil discharge pipeline: oil enters the pipeline through the internal first outlet 22 (located at a higher position) and is discharged outside the tank through the external first inlet 21, connecting to the recovery equipment. The second pipeline 30 serves as the water inlet pipeline; external water (such as seawater or ballast water) enters through the second inlet 31 and is injected into the bottom of the oil storage space through the second outlet 32 ​​(near the bottom wall).

[0028] Because the density of the injected water is greater than that of the oil, the water sinks to the bottom and gradually rises, smoothly lifting the oil from bottom to top and avoiding violent disturbance. The oil continues to float and accumulates at the top of the liquid surface, flowing out smoothly through the first outlet 22 at a high position, achieving efficient displacement-type oil drainage.

[0029] In some embodiments, when the oil tank is in the second position, the first pipeline 20 is a water inlet pipeline and the second pipeline 30 is an oil outlet pipeline. Water is injected through the first inlet 21 and flows into the oil storage space through the first outlet 22, thereby causing the oil to float to the second outlet 32 ​​and be discharged from the oil tank through the first inlet 21.

[0030] Understandably, when the oil tank 10 is in the second position (such as when the ship is in an abnormal position such as significant roll, inversion, or stern tilt), the position of the first pipeline 20, which was originally high, becomes relatively lower and becomes an effective oil discharge channel, while the position of the second pipeline 30, which was originally low, becomes relatively higher and is suitable as a water injection inlet.

[0031] The first pipeline 20 serves as the water inlet pipeline: external water enters through the first inlet 21 and is injected into the upper part of the oil storage space through the first outlet 22 at a higher position; the second pipeline 30 serves as the oil outlet pipeline: the injected water sinks to the bottom of the tank due to gravity, driving the oil upward and towards the new low point (i.e., the second outlet 32 ​​near the original bottom). The oil flows into the second pipeline 30 through the second outlet 32 ​​and is finally discharged outside the tank from the second inlet 31.

[0032] By utilizing the actual liquid level distribution after changes in the ship's attitude, the pipeline function can be adjusted to achieve reverse displacement, with water injection at high levels and oil discharge at low levels. Even in complex capsizing situations, the gravity difference can be effectively used to recover oil, avoiding oil retention, significantly improving adaptability and recovery efficiency in emergency situations, and minimizing leakage risks and environmental pollution.

[0033] In some embodiments, when the oil tank is in the first position, the second pipeline 30 is the oil discharge pipeline and the first pipeline 20 is the air intake pipeline. Compressed air is injected through the first inlet 21 and enters the oil storage space through the first outlet 22, thereby pressurizing the oil to enter the second outlet 32 ​​and discharge it from the oil tank through the second inlet 31.

[0034] Understandably, when the oil tank 10 is in the first position, such as a normal upright or slightly tilted state, the system adopts a pressurized recovery mode with top air pressure drive and bottom oil discharge.

[0035] Among them, the first pipeline 20 serves as the air intake pipeline, through which compressed air or inert gas enters via the external first inlet 21 and is injected into the gas phase region (above the oil surface) of the oil storage space via the high-level first outlet 22.

[0036] After continuous gas injection through the second pipeline 30, the internal pressure gradually increases, applying uniform pressure to the oil surface and forcing the oil to flow out from the second outlet 32 ​​near the bottom wall and be discharged into the recovery system through the second inlet 31. Utilizing gas pressure as the driving force avoids the use of moving mechanical parts, reducing the risk of sparks and improving inherent safety. It is particularly suitable for operating conditions where the oil viscosity is high, the flowability is poor, or negative pressure deformation is easily generated during suction. By adjusting the gas pressure, stable and controllable oil discharge can be achieved, improving recovery efficiency while preventing eddies caused by localized suction, effectively reducing the risk of marine environmental pollution. In some embodiments, when the oil tank is in the second position, the first pipeline 20 is an oil discharge pipeline and the second pipeline 30 is an air intake pipeline. Compressed air is injected through the second inlet 31 and enters the oil storage space through the second outlet 32, thereby pressurizing the oil to enter the first outlet 22 and discharge it from the oil tank through the first inlet 21.

[0037] Understandably, when the oil tank 10 is in the second position (such as when the ship is in an abnormal position such as listing, inverting, or tilting its stern upwards), the second pipeline 30, which was originally located at the bottom, is in a relatively low position, while the first pipeline 20 is below the new liquid level or close to the actual low point of the bottom. Therefore, it is necessary to switch to the pressurized oil discharge mode that adapts to the position.

[0038] The second pipeline 30 serves as the air intake pipeline, through which compressed air or inert gas enters via the external second inlet 31 and is injected into the top of the oil storage space via the second outlet 32; the first pipeline 20 serves as the oil discharge pipeline, through which the injected gas creates pressure inside the tank, forcing the residual oil to flow into the pipeline from the already low-level first outlet 22 and be discharged outside the tank via the first inlet 21.

[0039] like Figure 3 As shown, in some embodiments, the bottom wall of the oil storage space is rectangular, and the first outlet 22 and the second outlet 32 ​​are orthographically projected and distributed at intervals along the diagonal direction of the bottom wall.

[0040] Understandably, since the rectangular bottom wall has two diagonals, the longest of which are located at opposite corners of the bottom surface, arranging the projections of the first outlet 22 (high position) and the second outlet 32 ​​(low position) along this diagonal direction maximizes their spatial separation distance within the bilge plane. When the ship tilts or suffers partial damage, oil will accumulate on the lowest side due to gravity. The diagonally distributed outlet design ensures that regardless of which side the hull tilts to (left / right or forward / stern), at least one outlet is closer to the actual oil accumulation area, thereby improving oil removal efficiency.

[0041] In some embodiments, the system further includes a sealing element 40, with two sealing elements 40 detachably disposed at the first inlet 21 and the second inlet 31, respectively, to seal the oil tank 10.

[0042] Under normal navigation or storage conditions, the external interfaces of the first pipeline 20 and the second pipeline 30 are closed. By installing sealing components 40 (such as screw plugs, flange blind plates, or quick-connect sealing caps), external moisture and impurities can be effectively prevented from entering the pipelines, avoiding pipeline corrosion, blockage, or accidental leakage.

[0043] At the same time, the overall airtightness or liquid tightness of the oil tank 10 shall be maintained in accordance with the requirements of ship safety and pollution prevention regulations.

[0044] In emergency situations (such as when oil needs to be recovered after grounding or capsizing), the corresponding sealing component 40 can be quickly removed, and the oil pump and water / air injection equipment can be connected to achieve rapid pipeline connection and function switching. The detachable design of the sealing component 40 balances daily sealing performance with convenient emergency operation, improves the reliability and response efficiency of the system, and further prevents the risk of secondary leakage caused by pipeline openings.

[0045] like Figure 4 As shown, the second aspect of this application proposes a hull, including an oil storage device 01; an open deck 50; a main deck 60, the main deck 60 and the open deck 50 being spaced apart, and a cargo hold being provided between the main deck 60 and the open deck 50; and an oil tank 10 being located on the side of the main deck 60 away from the cargo hold.

[0046] Understandably, the open deck 50 is located on the uppermost layer of the hull, exposed to the external environment, and serves as a passageway for personnel, a space for equipment placement, and a protective barrier. The main deck 60 is located below the open deck 50, spaced apart from it, forming an inter-deck space. The cargo hold is located in the area between the open deck 50 and the main deck 60, and is used to load cargo (such as bulk cargo, containers, or liquid cargo). The oil storage equipment 01 includes an oil tank 10, a first pipeline 20, and a second pipeline 30, etc. The oil tank 10 is located on the side of the main deck 60 away from the cargo hold, that is, in the area below the main deck 60, near the bottom of the ship or the double bottom structure.

[0047] In some embodiments, both the first pipe 20 and the second pipe 30 extend into the cargo hold and are disposed near the side of the ship's side 70.

[0048] Understandably, both the first pipeline 20 and the second pipeline 30 are led out from the oil tank 10, extend longitudinally along the hull and pass through the main deck 60, enter the cargo hold area, and are arranged close to the side of the ship's side 70 (i.e., both sides of the hull). Under different hull attitudes, the high position arrangement close to the side of the ship is conducive to gas discharge or liquid injection operations. With the sealing component 40 and the multi-way valve, the "water injection top oil" or "pneumatic oil discharge" modes can be flexibly switched.

[0049] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0050] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0051] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0052] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. An oil storage device, characterized in that, include: An oil tank, wherein an oil storage space is formed within the oil tank; A first pipeline is connected to the oil storage space, and the distance from the opening of the first pipeline to the bottom wall of the oil storage space is a first distance. The second pipeline is connected to the oil storage space, and the distance from the opening of the second pipeline to the bottom wall of the oil storage space is the second distance. Wherein, the first distance is greater than the second distance.

2. The oil storage device according to claim 1, characterized in that, The first pipeline includes a first inlet and a first outlet; The second pipeline includes a second inlet and a second outlet; Both the first inlet and the second inlet are located outside the oil tank, and the first outlet is located away from the bottom wall, with the distance between the outlet and the bottom wall being the first distance. The second outlet is located near the bottom wall of the oil tank, and the distance between the outlet and the bottom wall is the second distance.

3. The oil storage device according to claim 2, characterized in that, When the oil tank is in the first position, the first pipeline is an oil discharge pipeline and the second pipeline is a water inlet pipeline. Water is injected through the second inlet and flows to the bottom wall of the oil storage space through the second outlet, thereby causing the oil to float to the first outlet and be discharged from the oil tank through the first inlet.

4. The oil storage device according to claim 2, characterized in that, When the oil tank is in the second position, the first pipeline is a water inlet pipeline and the second pipeline is an oil outlet pipeline. Water is injected through the first inlet and flows into the oil storage space through the first outlet, thereby causing the oil to float to the second outlet and be discharged from the oil tank through the first inlet.

5. The oil storage device according to claim 2, characterized in that, When the oil tank is in the first position, the second pipeline is the oil discharge pipeline and the first pipeline is the air intake pipeline. Compressed air is injected through the first inlet and enters the oil storage space through the first outlet, thereby pressurizing the oil and causing it to enter the second outlet and be discharged from the oil tank through the second inlet.

6. The oil storage device according to claim 2, characterized in that, When the oil tank is in the second position, the first pipeline is the oil discharge pipeline and the second pipeline is the air intake pipeline. Compressed air is injected through the second inlet and enters the oil storage space through the second outlet, thereby pressurizing the oil to enter the first outlet and discharge it from the oil tank through the first inlet.

7. The oil storage device according to claim 2, characterized in that, The bottom wall of the oil storage space is rectangular, and the first outlet and the second outlet are orthographically projected and spaced apart along the diagonal of the bottom wall.

8. The oil storage device according to any one of claims 2-7, characterized in that, Also includes: Two sealing components are detachably installed at the first inlet and the second inlet respectively to seal the oil tank.

9. A ship hull, characterized in that, Includes the oil storage device as described in any one of claims 1-8; Open deck; The main deck is spaced apart from the open deck, and a cargo hold is provided between the main deck and the open deck; The fuel tank is located on the side of the main deck opposite to the cargo hold.

10. The hull according to claim 9, characterized in that... , Both the first pipeline and the second pipeline extend into the cargo hold and are located near the ship's side.

Images