Ballast tank hatch cover of floating production oil storage device

Abstract

The invention relates to the field of floating production oil storage ships, in particular to a ballast tank hatch cover of a floating production oil storage device, which comprises an oil storage device, the oil storage device comprises an outer protection tank body, a ballast tank body and a ballast tank hatch cover, and an inert gas injection pipe is mounted on the upper surface of the ballast tank hatch cover. Adjusting mechanisms are installed on the two sides of the inert gas injection pipe and located in the ballast tank cover, limiting sliding blocks are installed on the outer sides of the extending plates, guiding sliding grooves are formed in the positions, located on the inner side walls of the swash plates, of the outer sides of the limiting sliding blocks, and telescopic mechanisms are installed in the adjusting mechanisms and located in the swash plates. The telescopic mechanism comprises a first bevel gear, a second bevel gear, a meshing lead screw and a gear rotating seat. After the inert gas injection pipe is integrally and externally connected with an inert gas source, and the inert gas is used for integrally discharging air remained in the ballast tank body, so that the ballast tank body can be used as a temporary collection mechanism, and the transportation efficiency and safety of oil are ensured.

Description

Technical Field

[0001] The invention relates to the field of floating production storage and offloading vessels, in particular to a ballast tank hatch cover of a floating production storage and offloading device. Background Art

[0002] The ballast water tank of a ship is a cabin where ballast water is placed. It is used to adjust the center of gravity, buoyancy and stability of the ship. It can solve the problem of insufficient stability or inappropriate draft caused by oil and water consumption and increased center of gravity during the voyage. The so-called "ballast" refers to heavy objects used to increase stability. The cabin loaded with ballast water is the ballast water tank. In submarines or passenger ferries, the ballast water tank can also play a role in adjusting balance. When the ship is sailing, the fuel, cargo, food, drinking water, etc. on board are all in designated cabins. When these items set sail, the draft and trim of the ship are in accordance with the design requirements. , which is beneficial to the stability of the ship, but in operation, these items are changing, some items are decreasing, and some items are increasing. For example, some fuel will gradually decrease due to the operation of the ship, drinking water is also decreasing, and some cargo holds are increasing or decreasing. These changes will cause the original ship's draft to change, or the front and rear loads to change, thus affecting the ship's navigation performance. In a floating production storage vessel, since the shuttle tanker does not have time to transport the cargo oil in the cargo tank, the excess cargo oil will have nowhere to be stored, so the cargo oil needs to be stored in the ballast tank.

[0003] However, if the ballast tank is directly filled with oil, the air in the tank combined with the sloshing of the oil may easily cause an explosion. Summary of the invention

[0004] In view of the existing problems, the present invention provides a ballast tank hatch cover for a floating production storage and offloading device, which can effectively solve the problems raised in the background technology when used in combination.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] The ballast tank hatch cover of a floating production storage and offloading device comprises an oil storage device, wherein the oil storage device comprises: an outer protective cabin, a ballast tank cabin body, and a ballast tank hatch cover; an inert gas injection pipe is installed on the upper surface of the ballast tank hatch cover; adjustment mechanisms are installed on both sides of the inert gas injection pipe and located inside the ballast tank hatch cover; a wave-breaking plate is provided inside the ballast tank cabin body below the adjustment mechanism; extension plates are installed on the inner sides of both ends of the wave-breaking plate; a limiting slider is installed on the outer side of the extension plate; a guide groove is provided on the outer side of the limiting slider and located on the inner side wall of the wave-breaking plate; a telescopic mechanism is installed inside the adjustment mechanism and located inside the wave-breaking plate; the telescopic mechanism comprises: a first bevel gear, a second bevel gear, a meshing screw, and a gear rotating seat; a positioning knob is installed on the upper surface of the first bevel gear and passes through the interior of the adjustment mechanism.

[0007] As a further solution of the present invention: an oil filling pipe is opened on one side of the inert gas injection pipe and located inside the ballast tank hatch cover, an oblique partition plate is installed inside the oil filling pipe, a valve core mounting pad is installed on one side of the oblique partition plate and located inside the oil filling pipe, a one-way valve core is arranged above the valve core mounting pad, and a return spring is connected between the one-way valve core and the valve core mounting pad.

[0008] As a further solution of the present invention: a welding pad is provided on the upper surface of the outer protective cabin body directly below the ballast tank hatch cover, and a lifting lug is installed on the upper surface of the ballast tank hatch cover.

[0009] As a further solution of the present invention: an airtight sealing cover is installed above the oil filling pipe, and a closing valve is installed above the inert gas injection pipe.

[0010] As a further solution of the present invention: a rotating bearing is connected between the second bevel gear and the gear rotating seat, and the first bevel gear is meshed and rotationally connected with the second bevel gear.

[0011] As a further solution of the present invention: the meshing screw is meshingly rotatably connected with the second bevel gear, and a storage spring is installed at one side end of the limit slider located inside the guide slide groove.

[0012] As a further solution of the present invention: the extension plate is slidably connected to the guide sliding groove through the limiting sliding block.

[0013] As a further solution of the present invention: the oblique partition plate is fixedly connected to the oil filling pipe, and the one-way valve core is fixedly connected to the valve core mounting pad via the return spring.

[0014] As a further solution of the present invention: the ballast tank hatch cover is fixedly connected to the welding pad by bolts, and the lifting lug is fixedly connected to the ballast tank hatch cover.

[0015] As a further solution of the present invention: the inert gas injection pipe is connected to the ballast tank hatch cover, and the airtight sealing cover is engaged and fixedly connected with the oil filling pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the inert gas injection pipe is connected to the inert gas source as a whole, the inert gas is continuously injected into the interior of the ballast tank body through the inert gas injection pipe, and the air remaining in the ballast tank body is discharged as a whole by using the inert gas. The oil stored inside the ballast tank body can ensure safety, so the ballast tank body can be used as a temporary collection agency to ensure the transportation efficiency of the oil.

[0018] 2. By inserting the entire oil filling pipe into the position of the oil filling pipe, after the oil body is injected into the ballast tank body under the action of the oblique partition plate, the oil body will squeeze the inert gas inside, and the squeezed gas will push the one-way valve core upward at the other side of the oblique partition plate. The one-way valve core will pull the return spring to deform, ensuring that the internal gas can be discharged normally, thereby realizing the filling of the oil body into the ballast tank body, and at the same time, it can also prevent the interior of the ballast tank body from continuing to mix with air when filling the oil body.

[0019] 3. The control adjustment knob drives the first bevel gear as a whole to rotate inside the gear rotating seat, and the rotating second bevel gear as a whole will drive the meshing screw installed inside to mesh and rotate outward, so that the reset spring connected between the limit slider and the guide slide groove is stretched. Therefore, multiple wave-breaking plates and extension plates are pushed as a whole to contact the inner wall of the ballast tank body to separate the interior of the ballast tank body, which can prevent the overall shaking of the oil storage from being too large and causing danger.

[0020] 4. When the extension plate is entirely housed inside the wave-breaking plate, the length between the entire wave-breaking plate and the extension plate will be smaller than the inner diameter of the opening of the ballast tank body, so the ballast tank hatch cover can be conveniently installed above the ballast tank body.

[0021] 5. The outer edge shape of the extended plate is the same as the inner edge shape of the ballast tank body. When they are fitted together, the multiple wave-breaking plates and the extended plates can divide the interior of the ballast tank body into multiple oil storage cavities. After the oil is stored in the multiple cavities, the multiple wave-breaking plates and the extended plates play a good barrier role, dividing the internal liquid into multiple containers. In this way, the fluctuation of the liquid in each tank can be reduced, thereby alleviating the impact of the waves caused by the shaking of the oil on the tank body, thereby ensuring the stability of the tank truck and reducing the pressure on the inner wall of the ballast tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the ballast tank hatch cover of the floating production storage unit;

[0023] Figure 2 This is an exploded view of the oil storage device in the ballast tank hatch cover of the floating production storage unit;

[0024] Figure 3 This is an enlarged schematic diagram of the wave-breaking plate in the ballast tank hatch cover of the floating production storage unit;

[0025] Figure 4 It is a front cross-sectional view of an oil storage device in a ballast tank hatch cover of a floating production storage unit;

[0026] Figure 5 It is a side cross-sectional view of an oil storage device in a ballast tank hatch cover of a floating production storage unit;

[0027] Figure 6 Schematic diagram of the internal structure of the oil filling pipe in the ballast tank hatch cover of the floating production storage unit.

[0028] In the figure: 1. oil storage device; 2. ballast tank hatch cover; 3. inert gas injection pipe; 4. closing valve; 5. oil filling pipe; 6. airtight closing cover; 7. adjusting mechanism; 8. lifting and lowering lugs; 9. outer protective cabin; 10. welding pad; 11. ballast tank cabin; 501. oblique partition plate; 502. valve core mounting pad; 503. one-way valve core; 504. reset spring; 701. wave-breaking plate; 702. extension plate; 703. limit slider; 704. guide slide; 705. adjustment knob; 706. first bevel gear; 707. second bevel gear; 708. meshing screw; 709. gear rotating seat. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific inventions, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention.

[0030] In the description of this specification, the description with reference to the terms "this embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0031] like Figure 1-6As shown, the present embodiment provides a ballast tank hatch cover of a floating production storage and offloading device, including an oil storage device 1, the oil storage device 1 including: an outer protective cabin 9, a ballast tank cabin 11, and a ballast tank hatch cover 2, an inert gas injection pipe 3 is installed on the upper surface of the ballast tank hatch cover 2, and adjustment mechanisms 7 are installed on both sides of the inert gas injection pipe 3 located inside the ballast tank hatch cover 2, and wave-breaking plates 701 are arranged inside the ballast tank cabin 11 below the adjustment mechanism 7, and extension plates 702 are installed on the inner sides of both ends of the wave-breaking plates 701. Certain perforations can be opened at different heights in the plurality of wave-breaking plates 701 and the extension plates 702 as needed, which can be used to provide for the flow of the internal oil body and also to prevent the excessive kinetic energy caused by the excessive flow rate of the oil body. 02 is installed with a limiting slider 703 on the outside, and a guide slot 704 is provided on the inner wall of the wave-breaking plate 701 on the outside of the limiting slider 703. The extension plate 702 is slidably connected with the guide slot 704 through the limiting slider 703. One side end of the limiting slider 703 is located inside the guide slot 704 and a storage spring is installed. When the extension plate 702 is controlled to be stored inside the wave-breaking plate 701, the storage spring can facilitate the extension plate 702 to retract as a whole into the wave-breaking plate 701, so that the installation and disassembly of the ballast tank hatch cover 2 can be realized. At the same time, the extension plate 702 is installed in the guide slot 704 on the inner side of the wave-breaking plate 701 as a whole through the limiting slider 703, so as to prevent it from falling off during the telescopic effect. The interior of the adjustment mechanism 7 is located inside the wave-breaking plate 701 and a telescopic mechanism is installed. The telescopic mechanism includes: a first bevel gear 706, a second bevel gear 707, an engaging screw rod 708, and a gear rotating seat 709. A rotating bearing is connected between the second bevel gear 707 and the gear rotating seat 709. The first bevel gear 706 is meshed and rotatably connected with the second bevel gear 707, and the engaging screw rod 708 is meshed and rotatably connected with the second bevel gear 707. The upper surface of the first bevel gear 706 passes through the interior of the adjustment mechanism 7 and a positioning knob 705 is installed. When the extension plate 702 is in a state of being accommodated in the internal state of the wave-breaking plate 701 as a whole, the length dimension between the entire wave-breaking plate 701 and the extension plate 702 will be less than the inner diameter dimension length of the opening of the ballast tank body 11. degree, so the ballast tank hatch cover 2 can be conveniently installed on the top of the ballast tank body 11, the outer edge shape of the extended plate 702 is the same as the inner edge shape of the ballast tank body 11, and when fitting, it can ensure that the multiple wave-breaking plates 701 and the extended plate 702 can divide the interior of the ballast tank body 11 into multiple oil storage cavities. After the oil is stored in the multiple cavities, the multiple wave-breaking plates 701 and the extended plate 702 play a good barrier role, dividing the internal liquid into multiple containers. In this way, the fluctuation of the liquid in each tank can be reduced, thereby alleviating the impact of the waves of oil shaking on the tank body, thereby ensuring the stability of the tank truck and reducing the pressure on the inner wall of the ballast tank body 11.

[0032] like Figure 2-4 As shown, in the present embodiment, an oil filling pipe 5 is provided on one side of the inert gas injection pipe 3 located inside the ballast tank hatch cover 2, the inert gas injection pipe 3 is connected with the ballast tank hatch cover 2, an oblique partition plate 501 is installed inside the oil filling pipe 5, the oblique partition plate 501 is fixedly connected with the oil filling pipe 5, one side of the oblique partition plate 501 is located inside the oil filling pipe 5 and a valve core mounting pad 502 is installed, a one-way valve core 503 is provided above the valve core mounting pad 502, a return spring 504 is connected between the one-way valve core 503 and the valve core mounting pad 502, the one-way valve core 503 is fixedly connected with the valve core mounting pad 502 through the return spring 504, a welding pad 10 is provided on the upper surface of the outer protective cabin 9 directly below the ballast tank hatch cover 2, the ballast tank hatch cover 2 is fixedly connected with the welding pad 10 by bolts, and the ballast tank hatch cover 2 is fixedly connected with the welding pad 10 by bolts. A lifting ear 8 is installed on the upper surface of the cover 2. The multiple adjustment mechanisms 7 arranged inside the ballast tank cover 2 have a large deadweight. The lifting ear 8 can be used to lift and dismantle the ballast tank cover 2 as a whole. The extension plate 702 as a whole can be controlled to shrink by the telescopic mechanism. When oil is stored inside the ballast tank body 11, the oil can lubricate the first bevel gear 706, the second bevel gear 707, the meshing screw 708, the gear rotating seat 709 and other structures. When no oil is stored inside the ballast tank body 11, the ballast tank cover 2 is removed as a whole to prevent rust. The lifting ear 8 is fixedly connected to the ballast tank cover 2, and an airtight sealing cover 6 is installed above the oil filling pipe 5. The airtight sealing cover 6 is meshed and fixedly connected with the oil filling pipe 5, and a closing valve 4 is installed above the inert gas injection pipe 3.

[0033] The working principle of the present invention is as follows: when in use, after pre-opening holes on the upper surface of the ballast tank hatch cover 2 for installing the inert gas injection pipe 3 and the oil injection pipe 5, the inert gas injection pipe 3 and the oil injection pipe 5 are fixed by full penetration welding, the ballast tank hatch cover 2 is placed on the upper side of the outer protective cabin 9, and the ballast tank hatch cover 2 and the welding pad 10 are fixed by bolts to ensure the watertightness of the cabin, and after the closed valve 4 is controlled to be opened by rotating, the inert gas injection pipe 3 is connected to the inert gas source as a whole, and the inert gas is continuously injected into the interior of the ballast tank cabin 11 through the inert gas injection pipe 3. After the gas is discharged, the air remaining in the ballast tank body 11 is exhausted as a whole by the inert gas, and the passage between the inert gas injection pipe 3 and the ballast tank body 11 is closed by rotating the closing valve 4. Then, the oil filling pipe is inserted into the position of the oil filling pipe 5 as a whole. Under the action of the oblique partition plate 501, the oil body is injected into the ballast tank body 11 as a whole. Then, the oil body will squeeze the inert gas inside. The squeezed gas will push the one-way valve core 503 upward at the other side of the oblique partition plate 501, and the one-way valve core 503 will pull the return spring 504 as a whole to generate The oil filling system 100 is used to fill the ballast tank 11 with oil, and the oil filling system 100 is used to fill the ballast tank 11 with oil. The oil filling system 100 is used to fill the ballast tank 11 with oil. The oil filling system 100 is used to fill the ballast tank 11 with oil. The oil filling system 100 is used to fill the ballast tank 11 with oil. The oil filling system 100 is used to fill the ballast tank 11 with oil. The oil filling system 100 is used to fill the ballast tank 11 with oil. The oil filling system 100 is used to fill the ballast tank 11 with oil. After 706 and the second bevel gear 707 engage and rotate, the rotating second bevel gear 707 as a whole will drive the meshing screw 708 installed inside to engage and rotate outward, and the meshing screw 708 as a whole will push the extension plate 702 to move inside the wave-breaking plate 701, and the return spring connected between the limiting slider 703 and the guide slide groove 704 is stretched. Therefore, the multiple wave-breaking plates 701 and the extension plate 702 are pushed as a whole to contact the inner wall of the ballast tank body 11 to separate the interior of the ballast tank body 11, which can prevent the overall shaking of the oil storage from being too large and causing danger.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ballast tank hatch cover for a floating production storage and offloading unit, comprising an oil storage unit (1), characterized in that: The oil storage device (1) comprises: an outer protective cabin (9), a ballast cabin (11), and a ballast cabin cover (2); an inert gas injection pipe (3) is installed on the upper surface of the ballast cabin cover (2); an adjustment mechanism (7) is installed on both sides of the inert gas injection pipe (3) and located inside the ballast cabin cover (2); a wave-breaking plate (701) is provided below the adjustment mechanism (7) and located inside the ballast cabin (11); extension plates (702) are installed on the inner sides of both ends of the wave-breaking plate (701); and the outer sides of the extension plates (702) are provided with a plurality of expansion plates (702). A limiting slider (703) is installed on the side, and a guide groove (704) is provided on the inner wall of the wave-breaking plate (701) on the outer side of the limiting slider (703). A telescopic mechanism is installed inside the adjusting mechanism (7) and is located inside the wave-breaking plate (701). The telescopic mechanism comprises: a first bevel gear (706), a second bevel gear (707), an engaging screw rod (708), and a gear rotating seat (709). The upper surface of the first bevel gear (706) passes through the interior of the adjusting mechanism (7) and is provided with a positioning knob (705).

2. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 1, characterized in that: An oil injection pipe (5) is provided on one side of the inert gas injection pipe (3) and is located inside the ballast tank hatch cover (2). An oblique partition plate (501) is installed inside the oil injection pipe (5). A valve core mounting pad (502) is installed on one side of the oblique partition plate (501) and is located inside the oil injection pipe (5). A one-way valve core (503) is provided above the valve core mounting pad (502). A return spring (504) is connected between the one-way valve core (503) and the valve core mounting pad (502).

3. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 1, characterized in that: A welding pad (10) is provided on the upper surface of the outer protective cabin (9) directly below the ballast tank hatch cover (2), and a lifting lug (8) is installed on the upper surface of the ballast tank hatch cover (2).

4. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 1, characterized in that: An airtight sealing cover (6) is installed above the oil injection pipe (5), and a closing valve (4) is installed above the inert gas injection pipe (3).

5. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 1, characterized in that: A rotating bearing is connected between the second bevel gear (707) and the gear rotating seat (709), and the first bevel gear (706) is meshed and rotationally connected with the second bevel gear (707).

6. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 1, characterized in that: The meshing screw rod (708) is meshed and rotationally connected with the second bevel gear (707), and a storage spring is installed at one side end of the limiting slider (703) located inside the guide slide groove (704).

7. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 1, characterized in that: The extension plate (702) is slidably connected to the guide sliding groove (704) via the limiting sliding block (703).

8. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 2, characterized in that: The oblique partition plate (501) is fixedly connected to the oil filling pipe (5), and the one-way valve core (503) is fixedly connected to the valve core mounting pad (502) via the return spring (504).

9. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 3, characterized in that: The ballast tank hatch cover (2) is fixedly connected to the welding pad (10) by means of bolts, and the lifting lug (8) is fixedly connected to the ballast tank hatch cover (2).

10. The ballast tank hatch cover of a floating production storage and offloading unit according to claim 4, characterized in that: The inert gas injection pipe (3) is connected to the ballast tank hatch cover (2), and the airtight sealing cover (6) is engaged and fixedly connected to the oil injection pipe (5).

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