CN220262982U - Detachable steady voltage cavity structure of gas layer drag reduction system - Google Patents
Detachable steady voltage cavity structure of gas layer drag reduction system Download PDFInfo
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- CN220262982U CN220262982U CN202322265295.2U CN202322265295U CN220262982U CN 220262982 U CN220262982 U CN 220262982U CN 202322265295 U CN202322265295 U CN 202322265295U CN 220262982 U CN220262982 U CN 220262982U
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- stabilizing cavity
- bottom plate
- wall
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 88
- 239000003921 oil Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000010071 organism adhesion Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a detachable pressure stabilizing cavity structure of a gas layer drag reduction system, which comprises a pressure stabilizing cavity outer wall, a first fixer and a second fixer; one end of the second fixer is welded on the bottom plate of the ship body, and one end of the first fixer is hinged on the bottom plate of the ship body. The space enclosed by the outer wall of the pressure stabilizing cavity and the bottom plate of the ship body forms the pressure stabilizing cavity. The lower parts of the transverse plates of the first fixer and the second fixer are pressed on the lugs on the two sides of the outer wall of the pressure stabilizing cavity. A hydraulic fixing device is arranged on the bottom plate of the ship body, and the hydraulic extending end of the hydraulic fixing device is tightly pressed above the transverse plate of the first fixer; the top of the outer wall of the pressure stabilizing cavity is connected with an air supply pipeline; a plurality of vent holes are arranged on the middle line of the hull bottom plate at the bottom of the pressure stabilizing cavity. The utility model is convenient for disassembly and assembly, is beneficial to maintenance and repair during the later operation of the ship, is easy to manufacture in the early construction process, and is convenient for assembly and construction.
Description
Technical Field
The utility model relates to the technical field of energy conservation and emission reduction of high-technology ships, in particular to a detachable pressure stabilizing cavity structure of a gas layer drag reduction system.
Background
The current gas layer drag reduction system, compressed air through the air compressor, extend to the ballast tank through deck piping, transport compressed gas to steady voltage intracavity, steady voltage intracavity links to each other with the planking, and the planking of steady voltage intracavity is perforated through fixed interval, transmits the gas transfer to the boats and ships bottom in the steady voltage intracavity for the hull bottom is covered with the gas layer, in order to reach the drag reduction effect. At present steady voltage chamber design, as shown in fig. 1, air supply line 4 is connected to steady voltage chamber outer wall 1's top, steady voltage chamber outer wall 1 carries out single face welding with the hull bottom planking 2, and steady voltage chamber 3 inner space is less, can have following problem:
1. if marine organisms enter the pressure stabilizing cavity, the pressure stabilizing cavity is blocked, and cannot be cleaned, so that the working efficiency of the gas layer drag reduction system is reduced or damaged.
2. The antifouling and marine organism resistant coating paint in the pressure stabilizing cavity can not be opened, so that corrosion or marine organism adhesion aggravation can be caused after paint is dropped, and further the working efficiency of gas layer drag reduction is affected or the system is damaged due to long-term blockage of gas outlet holes.
3. If the interior of the pressure stabilizing cavity needs to be maintained or cleaned, the ship needs to be docked for maintenance, the welded pressure stabilizing cavity is cut, and the welding is performed again after the cleaning or maintenance.
Disclosure of Invention
Aiming at the problems, the utility model provides a detachable pressure stabilizing cavity structure of a gas layer drag reduction system, which solves the technical problems that the traditional pressure stabilizing cavity structure is difficult to disassemble, the inside of the pressure stabilizing cavity cannot be cleaned effectively and timely, and the working efficiency of the gas layer drag reduction system is easy to be reduced or damaged.
In order to achieve the above purpose, the utility model provides a detachable pressure stabilizing cavity structure of an air layer drag reduction system, which comprises a pressure stabilizing cavity outer wall, and a first fixer and a second fixer with L-shaped cross sections; one end of the second fixer is welded on the bottom plate of the ship body, the first fixer is arranged opposite to the second fixer, and one end of the first fixer is hinged on the bottom plate of the ship body.
The section of the outer wall of the pressure stabilizing cavity is semicircular, and two ends of the pressure stabilizing cavity are outwards protruded to form lugs which can be attached to the bottom plate of the ship body; the space enclosed by the outer wall of the pressure stabilizing cavity and the bottom plate of the ship body forms the pressure stabilizing cavity.
The lower parts of the transverse plates of the first fixer and the second fixer are pressed on lugs on two sides of the outer wall of the pressure stabilizing cavity; the contact surface between the lower surface of the lug and the bottom plate of the ship body is provided with a waterproof rubber pad.
A hydraulic fixing device is arranged on a bottom plate of the ship body on one side, far away from the outer wall of the pressure stabilizing cavity, of the first fixer, and a hydraulic extending end of the hydraulic fixing device is tightly pressed above a transverse plate of the first fixer.
The top of the outer wall of the pressure stabilizing cavity is connected with an air supply pipeline for supplying air to the pressure stabilizing cavity; a plurality of vent holes are arranged on the middle line of the hull bottom plate at the bottom of the pressure stabilizing cavity.
Above-mentioned detachable steady voltage chamber structure of gas layer drag reduction system, under the preferred mode, the diaphragm tip of first fixer and second fixer, laminating on steady voltage chamber outer wall.
Above-mentioned detachable steady voltage chamber structure of gas layer drag reduction system, under the preferred mode, the diaphragm tip of first fixer and second fixer is equipped with magnet with the laminating department of steady voltage chamber outer wall.
According to the detachable pressure stabilizing cavity structure of the air layer drag reduction system, under the preferred mode, one end of the first fixer is hinged to the bottom plate of the ship body through the hinge.
According to the detachable pressure stabilizing cavity structure of the gas layer drag reduction system, in a preferred mode, one end of the second fixer is welded with the bottom plate of the ship body in a double-sided mode.
According to the detachable pressure stabilizing cavity structure of the gas layer drag reduction system, in a preferred mode, waterproof rubber pads are arranged on contact surfaces of the upper surfaces of the lugs and the first and second fixing devices.
According to the detachable pressure stabilizing cavity structure of the gas layer drag reduction system, under the preferred mode, the gas supply pipeline is connected through the pipeline connector.
In the detachable pressure stabilizing cavity structure of the gas layer drag reduction system, in a preferred mode, the hydraulic fixing device comprises a hydraulic cylinder, an oil inlet and outlet pipeline of the hydraulic cylinder is connected with the electromagnetic directional valve, and an oil outlet port of the electromagnetic directional valve is connected with the hydraulic oil tank; the hydraulic oil tank is connected with an inlet of the oil pump, an outlet of the oil pump is connected with the filter, an outlet of the filter is connected with the throttle valve, and an outlet of the throttle valve is connected with an oil inlet of the electromagnetic directional valve; the pipeline between the oil pump and the filter is connected with the inlet of the overflow valve, and the outlet of the overflow valve is connected with the hydraulic oil tank.
The outer wall of the pressure stabilizing cavity forming the pressure stabilizing cavity is detachably fixed, so that the pressure stabilizing cavity is convenient to detach and install, is beneficial to maintenance and repair during the later operation of the ship, is easy to manufacture in the early construction process, and is convenient to install and construct. The locking mode of the utility model adopts a hydraulic principle, can effectively lock and seal the pressure stabilizing cavity and prevent water from entering. The waterproof rubber pad and the magnet are arranged, so that the water tightness inside the waterproof rubber pad can be ensured. The second fixer adopts the welding form to weld with the hull bottom planking, because construction space is great, can adopt two-sided welding, increases the steadiness of second fixer.
Drawings
FIG. 1 is a schematic diagram of a conventional gas layer drag reduction system pressure stabilizing chamber configuration;
FIG. 2 is a schematic illustration of the removable pressure stabilizing chamber structure of the gas layer drag reducing system of the present utility model;
FIG. 3 is a schematic view of the utility model in a disassembled state;
fig. 4 is a schematic view of an oil passage of the hydraulic fixing device in the present utility model.
In the figure, 1, the outer wall of the pressure stabilizing cavity, 2, the bottom plate of the ship body, 3, the pressure stabilizing cavity, 4, the air supply pipeline, 5, the first fixer, 6, the second fixer, 7, the hinge, 8, the vent hole, 9, the waterproof rubber mat, 10, the hydraulic fixing device, 11, the hydraulic stretching end, 12, the magnet, 13, the pipeline connector, 14, the double-sided welding spot, 21, the hydraulic cylinder, 22, the electromagnetic directional valve, 23, the overflow valve, 24, the throttle valve, 25, the filter, 26, the oil pump, 27 and the hydraulic oil tank.
Detailed Description
As shown in FIG. 2, the detachable pressure stabilizing cavity structure of the gas layer drag reduction system comprises a pressure stabilizing cavity outer wall 1, and a first fixer 5 and a second fixer 6 with L-shaped sections; one end of the second fixer 6 is welded on the hull bottom plate 2 in a double-sided welding mode, so that an inner layer of double-sided welding spots 14 and an outer layer of double-sided welding spots 14 are formed. The first fixing device 5 is opposite to the second fixing device 6, one end of the first fixing device 5 is hinged to the hull bottom plate 2, and the hinge 7 can be used for realizing the hinge connection between the first fixing device 5 and the hull bottom plate 2.
The section of the outer wall 1 of the pressure stabilizing cavity is semicircular, and two ends of the outer wall are outwards protruded to form lugs which can be attached to the bottom plate 2 of the ship body. The space enclosed by the outer wall 1 of the pressure stabilizing cavity and the bottom plate 2 of the ship body forms a pressure stabilizing cavity 3.
The lower parts of the transverse plates of the first fixing device 5 and the second fixing device 6 are pressed on the lugs on two sides of the outer wall 1 of the pressure stabilizing cavity; the contact surface of the lower surface of the lug and the hull bottom plate 2 is provided with a waterproof rubber pad 9, and the contact surface of the upper surface of the lug and the first fixer 5 and the second fixer 6 is also provided with the waterproof rubber pad 9.
The transverse plate end parts of the first fixing device 5 and the second fixing device 6 are attached to the outer wall 1 of the pressure stabilizing cavity, and a magnet 12 is arranged at the attaching position. So that the sides of the lumen outer wall 1 can be tightly connected with the first holder 5 and the second holder 6.
The hydraulic fixing device 10 is arranged on the bottom plate 2 of the ship body on the side, far away from the outer wall 1 of the pressure stabilizing cavity, of the first fixer 5, and the hydraulic extending end 11 of the hydraulic fixing device 10 is tightly pressed above the transverse plate of the first fixer 5.
The top of the pressure stabilizing cavity outer wall 1 is connected with an air supply pipeline 4 for supplying air to the pressure stabilizing cavity 3, the air supply pipeline 4 can be connected through a pipeline connector 13, and a plurality of vent holes 8 are formed in the middle line of the hull bottom plate 2 at the bottom of the pressure stabilizing cavity 3.
As shown in fig. 4, the hydraulic fixing device 10 comprises a hydraulic cylinder 21, wherein an oil inlet and outlet pipeline of the hydraulic cylinder 21 is connected with an electromagnetic directional valve 22, and an oil outlet port of the electromagnetic directional valve 22 is connected with a hydraulic oil tank 27; the hydraulic oil tank 27 is connected with an inlet of the oil pump 26, an outlet of the oil pump 26 is connected with the filter 25, an outlet of the filter 25 is connected with the throttle valve 24, and an outlet of the throttle valve 24 is connected with an oil inlet of the electromagnetic directional valve 22; the pipeline between the oil pump 26 and the filter 25 is connected with the inlet of the overflow valve 23, and the outlet of the overflow valve 23 is connected with the hydraulic oil tank 27. The hydraulic pump 26 or the like in the hydraulic system is supplied by an on-board generator.
Hydraulic oil is transported to the hydraulic cylinder 21 through the oil pump 26, wherein the excessive oil quantity is prevented through the overflow valve 23, the oil is filtered through the filter 25, the flow is controlled through the throttle valve 24, and finally the hydraulic oil enters the hydraulic cylinder 21, and the hydraulic extension end 11 of the hydraulic fixing device 10 presses down the first fixing device 5 to fix the pressure stabilizing cavity outer wall 1. When the hydraulic pressure is required to be disassembled, the electromagnetic reverser 22 is used as a switch, so that hydraulic oil flows back, and the hydraulic pressure extending end 11 is lifted.
As shown in fig. 2 and 4, in the present utility model, when the waterproof rubber pad 9 is installed, the lug and the waterproof rubber pad 9 on one side of the second fixer 6 are installed, and then the first fixer 5 is rotated by the hinge 7, so that the transverse plate of the first fixer 5 is pressed on the lug on the one side, and the waterproof rubber pad 9 is arranged between the lug and the hull bottom plate 2, and between the transverse plates of the first fixer 5 and the second fixer and the lug. Then, the electromagnetic directional valve 22 is controlled to enable the hydraulic cylinder 21 of the hydraulic fixing device 10 to act, the hydraulic extending end 11 is pushed to be tightly pressed above the transverse plate of the first fixer 5, the transverse plate is fixed and sealed, finally, the air supply pipeline 4 at the top of the outer wall 1 of the pressure stabilizing cavity is connected well through the pipeline connector 14, and if the pipeline connector 14 is not arranged, the connection of the air supply pipeline 4 can be realized through a welding mode.
As shown in fig. 3 and 4, when cleaning is required for the inside of the surge tank 3, disassembly is performed. The gas supply line 4 is first separated from the top of the outer wall 1 of the pressure stabilizing chamber by disassembling the line connector 13. Then, the electromagnetic directional valve 22 is controlled to move the hydraulic projecting end 11 upward, release the first holder 5, then rotate the first holder 5 via the hinge 7, and release the lugs of the outer wall 1 of the pressure stabilizing chamber pressed below. Finally, the outer wall 1 of the pressure stabilizing cavity is pulled out, and the disassembly is completed.
According to the utility model, the installation form of the outer wall 1 of the pressure stabilizing cavity is changed into a non-welding form, so that the maintenance and cleaning of the pressure stabilizing cavity 3 can be performed in the ballast tank without docking of a ship, and the maintenance time generated by ship operation is reduced. The outer wall 1 of the pressure stabilizing cavity, the first fixing device 5 and the second fixing device 6 are made of carbon steel similar to the hull bottom plate 2.
The pressure stabilizing cavity 3 is in locking connection with the air supply pipeline 4 by adopting a detachable waterproof thread, namely a pipeline connector 13. The front and rear of the regulator chamber outer wall 1 are fixed using two holders, namely, a first holder 5 and a second holder 6. The second fixing device 6 is welded with the ship bottom plate 2 in a welding mode, and the first fixing device 5 is hinged with the ship bottom plate by a hinge 7. The first holder 5 is fixed by means of the hydraulic fixing device 10.
The contact part of the lugs of the outer wall 1 of the pressure stabilizing cavity and the bottom plate 2 of the ship body and the contact part of the lugs and the first and second fixtures 5 and 6 are waterproof rubber pads 9.
The outer wall 1 of the voltage stabilizing cavity is not fixed by a traditional welding mode shown in fig. 1, but a detachable outer wall 1 of the voltage stabilizing cavity shown in fig. 2 and 3 is adopted. The original pressure stabilizing cavity 3 is integrated in the ballast tank. The split type pressure stabilizing cavity 3 is adopted, so that the split type pressure stabilizing cavity 3 is convenient to detach and install, and the length of each section of pressure stabilizing cavity 3 is 1-2 meters, and can be changed according to the width of the ship and the size of the space at the bottom of the ship.
As shown in fig. 2, the second fixing device 6 is welded with the hull bottom plate 2 in a welding mode, and due to the fact that the construction space is large, double-sided welding can be adopted to form double-sided welding spots 14, and welding is firmer. The first fixer 5 is hinged with the bottom plate of the ship body by a hinge 7 and can be opened and closed.
The top of the first holder 5 is provided with a hydraulic extension 11, which presses the first holder 5 downwards when the hydraulic extension 11 is pressed down. When the pressure stabilizing cavity 3 needs to be disassembled, the hydraulic extending end 11 is lifted upwards, so that the first fixing device 5 is in an openable state, and the openable state is shown in fig. 3.
The hydraulic fastening device 10 is used for locking, because of the danger zone created by the tanker, the ballast tanks of which belong to the class 1 danger zone. The locking of the ship is performed in other manners, such as electromagnetic locking, manual physical locking and the like, aiming at other ships, such as bulk carriers or containers and the like, which do not generate dangerous areas. Instead of the first fixing device 5, a hydraulic fixing device can be used to directly lock the outer wall 1 of the pressure stabilizing cavity.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should be covered by the protection scope of the present utility model by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (8)
1. The detachable pressure stabilizing cavity structure of the gas layer drag reduction system is characterized by comprising a pressure stabilizing cavity outer wall (1), and a first fixer (5) and a second fixer (6) with L-shaped cross sections; one end of the second fixer (6) is welded on the hull bottom plate (2), the first fixer (5) is arranged opposite to the second fixer (6), and one end of the first fixer (5) is hinged on the hull bottom plate (2);
the section of the outer wall (1) of the pressure stabilizing cavity is semicircular, and two ends of the outer wall are outwards protruded to form lugs which can be attached to the bottom plate (2) of the ship body; the space enclosed by the outer wall (1) of the pressure stabilizing cavity and the bottom plate (2) of the ship body forms a pressure stabilizing cavity (3);
the lower parts of the transverse plates of the first fixer (5) and the second fixer (6) are pressed on the lugs on the two sides of the outer wall (1) of the pressure stabilizing cavity; a waterproof rubber pad (9) is arranged on the contact surface of the lower surface of the lug and the hull bottom plate (2);
a hydraulic fixing device (10) is arranged on the bottom plate (2) of the ship body at one side, far away from the pressure stabilizing cavity outer wall (1), of the first fixer (5), and a hydraulic extending end (11) of the hydraulic fixing device (10) is tightly pressed above a transverse plate of the first fixer (5);
the top of the pressure stabilizing cavity outer wall (1) is connected with an air supply pipeline (4) for supplying air to the pressure stabilizing cavity (3); a plurality of vent holes (8) are formed in the middle line of the hull bottom plate (2) at the bottom of the pressure stabilizing cavity (3).
2. The detachable pressure stabilizing cavity structure of the gas layer drag reduction system according to claim 1, wherein the transverse plate end parts of the first fixer (5) and the second fixer (6) are attached to the outer wall (1) of the pressure stabilizing cavity.
3. The detachable pressure stabilizing cavity structure of the gas layer drag reducing system according to claim 2, wherein magnets (12) are arranged at the joint positions of the transverse plate ends of the first fixer (5) and the second fixer (6) and the outer wall (1) of the pressure stabilizing cavity.
4. The removable pressure stabilizing cavity structure of the gas layer drag reducing system according to claim 1, wherein one end of the first fixer (5) is hinged on the hull bottom plate (2) through a hinge (7).
5. The detachable pressure stabilizing cavity structure of the gas layer drag reduction system according to claim 1, wherein a double-sided welding is adopted between one end of the second fixer (6) and the hull bottom plate (2).
6. The detachable pressure stabilizing cavity structure of the gas layer drag reduction system according to claim 1, wherein a waterproof rubber pad (9) is arranged on the contact surface of the upper surface of the lug and the first fixer (5) and the second fixer (6).
7. The removable pressure stabilizing cavity structure of the gas layer drag reducing system according to claim 1, wherein the gas supply pipeline (4) is connected through a pipeline connector (13).
8. The detachable pressure stabilizing cavity structure of the gas layer drag reducing system according to any one of claims 1-7, wherein the hydraulic fixing device (10) comprises a hydraulic cylinder (21), an oil inlet and outlet pipeline of the hydraulic cylinder (21) is connected with an electromagnetic directional valve (22), and an oil outlet port of the electromagnetic directional valve (22) is connected with a hydraulic oil tank (27); the hydraulic oil tank (27) is connected with an inlet of the oil pump (26), an outlet of the oil pump (26) is connected with the filter (25), an outlet of the filter (25) is connected with the throttle valve (24), and an outlet of the throttle valve (24) is connected with an oil inlet of the electromagnetic directional valve (22); the pipeline between the oil pump (26) and the filter (25) is connected with the inlet of the overflow valve (23), and the outlet of the overflow valve (23) is connected with the hydraulic oil tank (27).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022232707374 | 2022-12-07 | ||
| CN202223270737 | 2022-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220262982U true CN220262982U (en) | 2023-12-29 |
Family
ID=89306049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322265295.2U Active CN220262982U (en) | 2022-12-07 | 2023-08-21 | Detachable steady voltage cavity structure of gas layer drag reduction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220262982U (en) |
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2023
- 2023-08-21 CN CN202322265295.2U patent/CN220262982U/en active Active
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