CN216002977U - Voltage stabilization cavity structure, gas layer resistance reduction system and ship - Google Patents
Voltage stabilization cavity structure, gas layer resistance reduction system and ship Download PDFInfo
- Publication number
- CN216002977U CN216002977U CN202122511925.0U CN202122511925U CN216002977U CN 216002977 U CN216002977 U CN 216002977U CN 202122511925 U CN202122511925 U CN 202122511925U CN 216002977 U CN216002977 U CN 216002977U
- Authority
- CN
- China
- Prior art keywords
- opening
- pressure stabilizing
- ship
- stabilizing cavity
- detachable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The utility model belongs to the technical field of marine gas layer drag reduction, a pressure stabilizing cavity structure, a gas layer drag reduction system and a ship are disclosed, the pressure stabilizing cavity structure is arranged at the bottom of the ship and comprises a fixing part and a detachable part, the fixing part is fixed on a bottom plate of the ship to form a pressure stabilizing cavity, the cavity wall of the pressure stabilizing cavity is provided with an opening, the bottom plate of the ship and/or the detachable part are/is provided with air vents, and the air vents are communicated with the pressure stabilizing cavity and the outside of the ship; the gas layer resistance reduction system comprises the pressure stabilizing cavity structure; the ship comprises the gas layer drag reduction system. The detachable piece can seal or open the opening of the pressure stabilizing cavity, and when the detachable piece opens the opening, a user can repair an anti-corrosion coating in the pressure stabilizing cavity and maintain and clean the pressure stabilizing cavity, so that the anti-corrosion effect of the gas layer resistance reducing system and the safety of a ship are improved.
Description
Technical Field
The utility model relates to a marine gas layer drag reduction technical field especially relates to a steady voltage cavity structure, gas layer drag reduction system and boats and ships.
Background
According to the marine air layer drag reduction technology, a specially designed device is used for ventilating the bottom of a ship, and an air layer is formed and maintained at the bottom of the ship, so that the bottom of the ship is isolated from water, the wet surface area of a ship body is reduced, the ship resistance can be obviously reduced, and the fuel consumption is reduced. In the market promotion process, a series of engineering problems are solved, in order to ensure that the gas is uniform in the width direction of the ship and stable in pressure when the gas is sprayed out of the ship, a pressure stabilizing cavity is arranged in the cabin and used for conveying the gas and stabilizing the pressure of the gas. The gas is conveyed to the outside of the ship through the gas injection holes on the side wall of the pressure stabilizing cavity, and the inside of the pressure stabilizing cavity is in an air-water alternating environment for a long time, so that the gas is easy to oxidize and corrode.
In the prior art, the inside of a voltage stabilizing cavity is coated with an anticorrosive coating to avoid oxidation corrosion, but the coating near a welding seam can be damaged in the welding process due to polishing and spraying before welding installation, so that the anticorrosive effect and the ship safety are affected, and the later maintenance is very difficult.
Based on the above current situation, it is urgently needed to design a pressure stabilizing cavity structure, a gas layer drag reduction system and a ship to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: the utility model provides a steady voltage chamber structure, the opening that can dismantle the piece and can open steady voltage chamber, and then the maintenance of the restoration and the later stage of anticorrosive coating of being convenient for.
The utility model discloses another aim at: the gas layer resistance reduction system comprises the pressure stabilizing cavity structure, and the anti-corrosion effect can be improved.
The utility model discloses another aim at: the ship comprises the gas layer drag reduction system, and safety can be improved.
To achieve the purpose, the utility model adopts the following technical proposal:
in one aspect, a voltage stabilization cavity structure is disclosed, comprising:
the fixing piece is fixed on the bottom plate of the ship to form a pressure stabilizing cavity, and an opening is formed in the cavity wall of the pressure stabilizing cavity;
the detachable piece can seal or open the opening, the bottom board and/or the detachable piece are/is provided with an air jet hole, and the air jet hole is communicated with the pressure stabilizing cavity and the exterior of the ship.
Preferably, the opening is located between the fixing member and the bottom board, and one end of the detachable member is detachably connected to the fixing member, and the other end of the detachable member is detachably connected to the bottom board to close the opening.
As a preferred scheme, the opening is located between the fixing piece and the bottom board, one end of the detachable piece is covered on one side of the fixing piece, which is deviated from the bottom board, and the other end of the detachable piece is detachably connected to the bottom board to close the opening.
Preferably, the opening opens in the bottom plating and the removable member is located on the bottom plating to close the opening.
Preferably, a flange is mounted on the bottom plate of the ship, and the detachable piece is detachably connected to the flange.
As a preferable scheme, the edge of the opening is provided with a limit table, and the detachable piece is abutted against the limit table and detachably connected to the fixing piece.
Preferably, the opening is opened on the fixing member, and the detachable member is detachably connected to the fixing member to close the opening.
As a preferred scheme, the pressure stabilizing cavity structure further comprises an anti-corrosion gasket, and the anti-corrosion gasket is clamped between the detachable piece and the fixing piece;
and/or the anti-corrosion gasket is clamped between the detachable piece and the bottom plate.
On the other hand, the gas layer resistance reducing system comprises the pressure stabilizing cavity structure.
In another aspect, a ship is also disclosed, which comprises the gas layer drag reduction system.
The utility model has the advantages that: the fixing piece is fixed on the bottom plate of the ship to form the pressure stabilizing cavity, the detachable piece can seal or open the opening of the pressure stabilizing cavity, when an anti-corrosion coating in the pressure stabilizing cavity needs to be repaired and the pressure stabilizing cavity needs to be maintained and cleaned, the detachable piece is only needed to open the opening of the pressure stabilizing cavity, and the operation is simple; the gas layer resistance reducing system comprises the pressure stabilizing cavity structure, so that the anti-corrosion effect of the gas layer resistance reducing system is improved; the ship comprises the air layer drag reduction system, so that the safety of the ship is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a front view of a plenum structure according to an embodiment one;
FIG. 2 is a front view of the plenum structure according to the first embodiment with the detachable member detached;
FIG. 3 is a side view of a plenum structure according to one embodiment;
FIG. 4 is a top view of a plenum structure according to one embodiment;
FIG. 5 is a front view of a plenum structure according to a second embodiment;
FIG. 6 is a front view of the structure of the plenum according to the second embodiment with the detachable member detached;
FIG. 7 is a side view of a plenum structure according to a second embodiment;
FIG. 8 is a top view of a plenum structure according to a second embodiment;
FIG. 9 is a front view of a plenum structure according to a third embodiment;
FIG. 10 is a front view of the structure of the plenum according to the third embodiment, with the detachable member detached;
FIG. 11 is a side view of a plenum structure according to example three;
FIG. 12 is a top view of a flange of a plenum structure according to example three;
FIG. 13 is a top view of a removable piece of a plenum structure according to example three;
FIG. 14 is a front view of a plenum structure according to example four;
FIG. 15 is a front view of the stabilivolt cavity structure according to the fourth embodiment, with the detachable member detached;
FIG. 16 is a side view of a plenum structure according to example four;
FIG. 17 is a top view of a removable piece of a plenum structure according to example four;
FIG. 18 is a front view of a plenum structure according to example five;
FIG. 19 is a front view of the plenum structure according to the fifth embodiment with the detachable member detached;
FIG. 20 is a side view of a plenum structure according to example five;
fig. 21 is a schematic diagram of the spraying device spraying the anticorrosive coating in the pressure stabilizing cavity.
In fig. 1 to 21:
1. a fixing member; 11. a voltage stabilizing cavity; 111. an opening;
2. a detachable member;
3. an anti-corrosion gasket;
4. a bolt;
5. a bottom board of the ship; 51. a gas injection hole; 52. a limiting table;
6. a flange;
7. a spraying device.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In order to solve the corrosion prevention problem of the pressure stabilizing cavity 11, an anticorrosive coating is generally coated inside the pressure stabilizing cavity 11, but the anticorrosive coating near a welding seam is damaged in the welding process due to polishing and spraying treatment before welding and installation, so that the local corrosion near the welding seam is caused, the corrosion range is gradually enlarged, and finally the whole pressure stabilizing cavity 11 and the bottom plate 5 are influenced. In the prior art, a method of thickening a local anticorrosive coating is generally adopted to enhance the corrosion resistance of the pressure stabilizing cavity 11, but the method only increases the corrosion allowance to prolong the corrosion resistance life of the pressure stabilizing cavity 11, and cannot avoid the corrosion risk that the metal material of the pressure stabilizing cavity 11 is exposed and leaked in seawater after the anticorrosive coating in the pressure stabilizing cavity 11 is damaged. This embodiment provides a steady voltage chamber structure, and detachable member 2 can open steady voltage chamber 11's opening 111, and then the maintenance of the repair and the later stage of the near anticorrosive coating of welding seam of being convenient for has improved the anticorrosion effect.
Specifically, the pressure stabilizing cavity structure is arranged at the bottom of the ship, the fixing part 1 is welded and fixed on the bottom plate 5 to form a pressure stabilizing cavity 11, an opening 111 is formed in the cavity wall of the pressure stabilizing cavity 11, the detachable part 2 can seal or open the opening 111 of the pressure stabilizing cavity 11, a plurality of air injection holes 51 are formed in the bottom plate 5 or the detachable part 2, and the pressure stabilizing cavity 11 can ventilate the outside of the bottom plate 5 through the air injection holes 51 to realize air layer drag reduction of the ship. When the anti-corrosion coating and the pressure stabilizing cavity 11 are required to be repaired and maintained and cleaned in the later period after the fixing part 1 is welded, the detachable part 2 is only required to open the opening 111 of the pressure stabilizing cavity 11, and the operation is simple.
The first embodiment is as follows:
as shown in fig. 1 to 4, the opening 111 of the present embodiment is located at one side of the pressure stabilizing cavity 11 along the length direction of the ship, that is, the opening 111 is located between the fixing member 1 and the bottom board 5, the fixing member 1 is configured as a semi-cylindrical housing, the fixing member 1 is welded and fixed on the bottom board 5, the detachable member 2 is configured as a semi-circular fixing plate, and the detachable member 2 is located at the opening 111 of the pressure stabilizing cavity 11. Connecting plates are respectively welded on the periphery of the fixing piece 1 and the bottom board 5, one end of the detachable piece 2 is connected with the connecting plate on the fixing piece 1 through a bolt 4, the other end of the detachable piece 2 is connected with the connecting plate on the bottom board 5 through a bolt 4, and an anti-corrosion gasket 3 is clamped between the connecting plate and the detachable piece 2 and can play a role in sealing, so that the detachable piece 2 can seal or open the opening 111 of the pressure stabilizing cavity 11, and the structure is simple.
Example two:
as shown in fig. 5 to 8, the present embodiment is different from the first embodiment in that the detachable member 2 is configured as a semi-cylindrical housing matching with the shape of the fixing member 1, the detachable member 2 covers a side of the fixing member 1 away from the bottom plate 5 of the ship, an anti-corrosion gasket 3 is clamped between the detachable member 2 and the fixing member 1, and the detachable member 2 is connected to the bottom plate 5 of the ship only through a bolt 4 to close the opening 111 of the pressure stabilizing cavity 11, but not connected to the fixing member 1, so that the structure is simple.
Example three:
as shown in fig. 9-13, the opening 111 of the present embodiment is located at the bottom of the pressure stabilizing cavity 11, that is, the opening 111 is located on the bottom plate 5, the fixing member 1 is configured as a housing, the fixing member 1 is welded and fixed on the bottom plate 5 to form the pressure stabilizing cavity 11, the bottom plate 5 is provided with a through hole to form the opening 111 of the pressure stabilizing cavity 11, one side of the bottom plate 5 close to the fixing member 1 is welded with the flange 6, the detachable member 2 is connected to the flange 6 through the bolt 4 to close or open the opening 111 of the pressure stabilizing cavity 11, and the anti-corrosion gasket 3 is clamped between the detachable member 2 and the flange 6, so that the sealing effect can be achieved, and the structure is simple. Wherein, all seted up a plurality of fumaroles 51 on detachable 2 and the bilge floor 5, through these fumaroles 51, the gas blanket drag reduction in order to realize boats and ships can be ventilated to the outside of bilge floor 5 to pressure stabilizing cavity 11.
Example four:
as shown in fig. 14 to 17, the present embodiment is different from the third embodiment in that a nut is disposed on one side of the fixed member 1 close to the bottom plate 5, a limit table 52 is disposed on an edge of the opening 111, the detachable member 2 abuts against the limit table 52, a screw penetrates through the detachable member 2 and is connected to the nut on the fixed member 1, and an anti-corrosion gasket 3 is interposed between the detachable member 2 and the limit table 52, so that a sealing effect can be achieved, and the detachable member 2 can close or open the opening 111 of the pressure stabilizing cavity 11, and the structure is simple.
Example five:
as shown in fig. 18 to 20, the opening 111 of the embodiment is located at the top of the surge chamber 11, the fixing member 1 is welded and fixed on the bottom plate 5 to form the opening 111 of the surge chamber 11, the fixing member 1 is provided with a through hole to form the opening 111 of the surge chamber 11, the flange 6 is welded on one side of the fixing member 1 away from the bottom plate 5, the detachable member 2 is connected to the flange 6 through the bolt 4 to close or open the opening 111 of the surge chamber 11, and the anti-corrosion gasket 3 is clamped between the detachable member 2 and the flange 6, so that the sealing effect can be achieved, and the structure is simple. Wherein, a plurality of fumaroles 51 have been seted up on the bilge floor 5, through these fumaroles 51, the steady voltage chamber 11 can be to the outside ventilation of bilge floor 5 in order to realize the gas layer drag reduction of boats and ships.
Example six:
as shown in fig. 21, the embodiment provides a spraying method of an anticorrosive coating, which is used for spraying the anticorrosive coating in the pressure stabilizing cavity structure, and the spraying method can repair the anticorrosive coating in the pressure stabilizing cavity 11, so as to improve the anticorrosive effect, and specifically includes the following steps:
s100: the pressure stabilizing cavity 11 is provided with two openings 111, each opening 111 is detachably connected with a detachable piece 2, and the detachable pieces 2 are detached to open the two openings 111 of the pressure stabilizing cavity 11.
S200: the spraying device 7 is placed in the plenum 11 through a first opening 111.
Specifically, the spraying device 7 of the present embodiment is provided with four pulleys, and the spraying device 7 can move inside the pressure stabilizing cavity 11 in a manual dragging or automatic walking manner. And the front end of the spraying device 7 is detachably provided with a sand blasting nozzle or a paint spraying nozzle for different spraying processes, so that the universality is improved.
S300: the spray device 7 moves from the first opening 111 to the second opening 111 to exit the plenum 11 and perform a spraying action within the plenum 11.
Specifically, S301: the plenum 11 is placed obliquely and the spraying device 7 is moved from the first opening 111 to the second opening 111 to blast into the plenum 11 while flushing the plenum 11 with gas to ensure cleanliness in the plenum 11.
S302: the pressure stabilizing cavity 11 is horizontally arranged, the spraying device 7 moves from the first opening 111 to the second opening 111 to spray paint into the pressure stabilizing cavity 11, wherein the thickness of a paint film can be adjusted by adjusting the moving speed of the spraying device 7, and the spraying requirements of paint films with different thicknesses are met.
In the process of blasting and painting, the gas ejection holes 51 need to be cleaned in time to prevent residues from blocking the gas ejection holes 51, improving reliability.
S400: the removable piece 2 is re-secured to close the opening 111 of the plenum 11.
Example seven:
the embodiment provides a gas layer drag reduction system, including foretell steady voltage cavity structure, when needing to restore the anticorrosive coating in the steady voltage cavity 11 and maintain clearance steady voltage cavity 11, only need detachable 2 open steady voltage cavity 11 the opening 111 can, easy operation to the anticorrosion effect of gas layer drag reduction system has been improved.
The embodiment also provides a ship, which comprises the gas layer drag reduction system, and the gas layer drag reduction system has a good anti-corrosion effect, so that the safety of the ship is improved.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a steady voltage cavity structure sets up in the bottom of boats and ships, its characterized in that includes:
the fixing piece (1) is fixed on the bottom plate (5) of the ship to form a pressure stabilizing cavity (11), and an opening (111) is formed in the cavity wall of the pressure stabilizing cavity (11);
the detachable piece (2) can close or open the opening (111), the bottom board (5) and/or the detachable piece (2) are/is provided with an air jet hole (51), and the air jet hole (51) is communicated with the pressure stabilizing cavity (11) and the outside of the ship.
2. A plenum structure according to claim 1, wherein the opening (111) is located between the fixing member (1) and the bottom plating (5), and the detachable member (2) is detachably attached to the fixing member (1) at one end and detachably attached to the bottom plating (5) at the other end to close the opening (111).
3. A plenum structure according to claim 1, wherein the opening (111) is located between the fixing member (1) and the bottom board (5), and one end of the detachable member (2) covers the fixing member (1) on the side away from the bottom board (5), and the other end is detachably connected to the bottom board (5) to close the opening (111).
4. A plenum structure according to claim 1, wherein the opening (111) opens onto the bottom plating (5) and the removable piece (2) is located on the bottom plating (5) to close the opening (111).
5. A plenum structure as claimed in claim 4, wherein a flange (6) is mounted on the bottom plating (5), and the detachable member (2) is detachably attached to the flange (6).
6. A plenum structure according to claim 4, characterized in that the edge of the opening (111) is provided with a limit stop (52), and the detachable piece (2) abuts against the limit stop (52) and is detachably connected to the fixing piece (1).
7. A plenum structure according to claim 1, wherein the opening (111) opens onto the fixture (1), and the detachable member (2) is detachably attached to the fixture (1) to close the opening (111).
8. A plenum structure according to any one of claims 1-7, further comprising an anti-corrosion gasket (3), the anti-corrosion gasket (3) being sandwiched between the detachable piece (2) and the fixed piece (1);
and/or the anti-corrosion gasket (3) is clamped between the detachable piece (2) and the bottom board (5).
9. A gas layer drag reduction system comprising the plenum structure of any one of claims 1-8.
10. A marine vessel comprising the gas layer drag reduction system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122511925.0U CN216002977U (en) | 2021-10-19 | 2021-10-19 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122511925.0U CN216002977U (en) | 2021-10-19 | 2021-10-19 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216002977U true CN216002977U (en) | 2022-03-11 |
Family
ID=80522614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122511925.0U Active CN216002977U (en) | 2021-10-19 | 2021-10-19 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216002977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788102A (en) * | 2021-10-19 | 2021-12-14 | 中船重工（上海）节能技术发展有限公司 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
-
2021
- 2021-10-19 CN CN202122511925.0U patent/CN216002977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788102A (en) * | 2021-10-19 | 2021-12-14 | 中船重工（上海）节能技术发展有限公司 | Voltage stabilization cavity structure, gas layer resistance reduction system and ship |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216002977U (en) | Voltage stabilization cavity structure, gas layer resistance reduction system and ship | |
| CN113788102A (en) | Voltage stabilization cavity structure, gas layer resistance reduction system and ship | |
| CN107795774B (en) | Ship dissimilar metal piping connection corrosion protection structure and construction method | |
| CN201531024U (en) | Anti-corrosion operation equipment for steel pile | |
| CN113184109A (en) | Device for ship exhaust outer pipe and water distribution plate and manufacturing process | |
| CN112810748A (en) | Corrosion-resistant pressure stabilizing cavity structure suitable for gas layer drag reduction ship | |
| CN208882067U (en) | The flexible underwater climbing robot of magnetic suck | |
| CN112208723A (en) | Anti-corrosion protection processing method for ship metal outboard plate with outboard pipe | |
| CN111086599A (en) | Gas supply system anticorrosion structure for gas layer drag reduction ship | |
| CN211442668U (en) | Gas supply system anticorrosion structure for gas layer drag reduction ship | |
| CN110979617B (en) | Ship lifting type seabed door device | |
| CN210207364U (en) | Shipbuilding factory hull protective paint spraying device | |
| WO2015132617A2 (en) | Bubble chamber for underwater maintenance for ships | |
| CN210284577U (en) | Waterproof device for ship ventilation system | |
| CN210975943U (en) | Box type non-negative pressure water supply equipment with anti-corrosion function | |
| CN210080321U (en) | Pickling volatilization prevention device | |
| CN112295140A (en) | Pneumatic fire prevention air brake of boats and ships of fireproof coating is paintd on surface | |
| CN214420653U (en) | Corrosion-resistant pressure stabilizing cavity structure suitable for gas layer drag reduction ship | |
| CN220905266U (en) | Novel sea water main pipe structure | |
| CN207980837U (en) | A kind of acid mist waste gas treatment equipment | |
| CN108100185B (en) | A kind of aircushion vehicle method for anticorrosion treatment | |
| CN206529528U (en) | One kind cleaning Wiring technology section threading Aluminum sheets anticorrosion equipment | |
| CN219884056U (en) | Auxiliary overhaul device for ship maintenance | |
| CN216783766U (en) | Ship bottom suction inlet of emergency fire pump | |
| CN211570809U (en) | Anti-corrosion structure of electrophoresis hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 312, 313, 189 Kaohsiung Road, Huangpu District, Shanghai 200011 Patentee after: China Shipbuilding (Shanghai) Energy Conservation Technology Co.,Ltd. Address before: Room 312, 313, 189 Kaohsiung Road, Huangpu District, Shanghai 200011 Patentee before: CSIC (SHANGHAI) ENERGY SAVING TECHNOLOGY DEVELOPMENT CO.,LTD. |