CN109421896A - The method for maintaining of suction box and its seal cover board and suction box - Google Patents
The method for maintaining of suction box and its seal cover board and suction box Download PDFInfo
- Publication number
- CN109421896A CN109421896A CN201710786246.XA CN201710786246A CN109421896A CN 109421896 A CN109421896 A CN 109421896A CN 201710786246 A CN201710786246 A CN 201710786246A CN 109421896 A CN109421896 A CN 109421896A
- Authority
- CN
- China
- Prior art keywords
- cover board
- suction box
- seal cover
- seat board
- waterproof sheet
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
Abstract
The present invention provides a kind of suction box and its method for maintaining of seal cover board and suction box.Suction box includes: cabinet, seat board and backplate.Cabinet is set on the inside of hull bottom and connect with ship hull plate, and the cabinet has opening towards hull outside；Seat board is fixedly installed on the outer surface in the rims week；Backplate is covered on the outer surface of the seat board, and is detachably connected by fastener and the seat board.Suction box of the present invention is provided with backplate, has carried out the reduction that effective protection avoids seat board from being influenced by sea water intrusion sealing effect to seat board and has improved the added value of ship and ocean platform to make seat board that can be used for a long time in the environment of sea bottom complex.
Description
Technical field
The present invention relates to Naval Architecture and Ocean Engineering construction applications more particularly to a kind of ship and ocean platform suction box and
Its seal cover board and method for maintaining.
Background technique
The suction box of ship and ocean platform is for the significant points from marine extracting seawater, is that ship and ocean are flat
Platform is maintained the lifeline of equilibrium state.So as long as the ship and ocean platform that have ballast system are all from not sea cock and valve
Case, inside include seawater general pipeline, permeability cell, blowing pipe, grill unit, aluminium electrode, copper electrode, sacrificial anode and cooling water
Return pipe etc..In order to reduce harm of the marine growth to ship and ocean platform, commonly using the anti-marine growth technology of ionization.?
That is generating electric current using positive and negative electrode, seawater is electrolysed, on the one hand can kill a part of marine growth with electric current,
On the other hand, the chloride in electrolytic seawater can generate chlorine, and chlorine and water generate combination reaction, generates hypochlorous acid, to rise
To the effect for killing marine growth.
Anti- marine growth electrode generally uses copper aluminium electricity grade, and this electrode substantially service life is no more than 3 years, so needing
It is replaced.Other than traditional dock repair replacement, at sea being replaced also is necessary.And pipeline therein by
In the seawater in long-term bubble, on the one hand still some impurity such as fishing net, sea grass etc can be gathered by seawater corrosion, it is also desirable to
Carry out maintenance and cleaning.Seabed grid will be in a few years substantial, and need repairing replacement.It usually need to be by seabed door termination
Carry out above-mentioned maintenance activity later, but since seabed grid is by different degrees of corrosion, cause Sea Chest sealing effect compared with
Difference.
Summary of the invention
In order to solve the above-mentioned technical problem, the invention reside in provide a kind of suction box and its seal cover board and seabed
The method for maintaining of clack box, the problems such as to solve bad prior art Sea Chest sealing effect, inconvenient maintenance.
In view of the above technical problems, the present invention proposes a kind of suction box comprising: cabinet, seat board and backplate.Cabinet is set
It is placed on the inside of hull bottom and is connect with ship hull plate, the cabinet has opening towards hull outside；Seat board is fixedly installed in
On the outer surface in the rims week；Backplate is covered on the outer surface of the seat board, and passes through fastener and the seat board
It is detachably connected.
In a preferred approach, the opening is equipped with Sea Chest, has grill unit on the Sea Chest and makes seawater
It can enter inside clack box through grid.
In a preferred approach, gasket is equipped between the seat board and backplate.
The present invention also proposes a kind of seal cover board of suction box comprising: it the cover board body of steel and is attached to described
The waterproof sheet of cover board body outer surface, the waterproof sheet are lightweight buoyancy material, the waterproof sheet in the seawater floating
Power is greater than the gravity of its own.
In a preferred approach, handle is provided on the outer surface of the waterproof sheet.
In a preferred approach, the waterproof sheet is foam, and the waterproof sheet is capable of providing floating in the seawater
Power is substantially equal to the gravity of the seal cover board itself.
In a preferred approach, the cover board body is provided with reinforcing rib towards the outer surface of the waterproof sheet, and described
Waterproof sheet covers the reinforcing rib.
In a preferred approach, the seal cover board is equipped with multiple air holes and can seal the rotation of the air hole
Plug, the air hole pass through the waterproof sheet and the cover board body and communicate with the outside world clack box inner space.
The present invention also proposes a kind of suction box comprising: cabinet, seat board and above-mentioned seal cover board；The cabinet
It is set on the inside of hull bottom and is connect with ship hull plate, the cabinet has opening towards hull outside；The seat board is fixed
It is installed on the outer surface in the rims week；The seal cover board is removably installed on the seat board.
The present invention also proposes a kind of method for maintaining of suction box comprising step: a default seal cover board, the sealing cover
Plate includes: the cover board body of steel and the waterproof sheet for being attached to the cover board body outer surface, and the waterproof sheet is lightweight
Buoyant material, the buoyancy of the waterproof sheet in the seawater are greater than the gravity of its own；For the suction box to need repairing, tear open
Except backplate, and seal cover board is fixedly installed in the opening on seat board and closing clack box；To electrode, each pipeline in suction box
It is repaired or replaced；After maintenance or replacement, seal cover board is removed, and the backplate dismantled before is re-installed in seat board
On.
Compared with prior art, the invention has the following advantages: suction box of the present invention is provided with backplate, to seat board
The reduction that effective protection avoids seat board from being influenced sealing effect by sea water intrusion is carried out, to make seat board in the ring of sea bottom complex
It can be used for a long time under border, improve the added value of ship and ocean platform.
Detailed description of the invention
Fig. 1 is the bioelectrode mounting structure schematic diagram of the present embodiment suction box.
Fig. 2 is the structural schematic diagram of the present embodiment suction box aperture position.
Fig. 3 is the topology view in the direction AA in Fig. 2.
Fig. 4 is the partial cross section structural schematic diagram in the direction BB in Fig. 3.
Fig. 5 is the structural schematic diagram that the present embodiment seal cover board is installed on clack box aperture position.
Fig. 6 is the topology view in the direction CC in Fig. 5.
Fig. 7 is the step flow chart of the method for maintaining of suction box of the present invention.
The reference numerals are as follows: 11, ship hull plate；2, suction box；21, cabinet；201, Sea Chest；2011, grid
Unit；22, seat board；23, backplate；24, gasket；25, seal cover board；251, cover board body；2511, reinforcing rib；252, waterproof
Sheet material；253, cock；26, washer；27, complete thread screw；202, anti-biological electrode.
Specific embodiment
The exemplary embodiment for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that
The present invention can have various variations in different embodiments, neither depart from the scope of the present invention, and theory therein
Bright and diagram inherently is illustrated as being used, rather than to limit the present invention.
The present invention is described in further detail with reference to the accompanying drawings and examples.
Refering to fig. 1 to Fig. 6, the suction box 2 of the present embodiment includes: cabinet 21, seat board 22 and backplate 23.
Cabinet 21 is set on the inside of hull bottom and connect with ship hull plate 11, and cabinet 21 has towards hull outside to be opened
Mouthful.Seat board 22 is fixedly installed on the outer surface in rims week.Backplate 23 is covered on the outer surface of seat board 22, and by tight
Firmware is detachably connected with seat board 22.
It should be noted that suction box 2 is used as and takes seawater device normal use when backplate 23 is connected to seat board 22.
Specifically, cabinet 21 is surrounded by muti-piece outside plate, wherein constituting ship hull plate 11 towards the outside plate 211 on the outside of hull
A part.The opening of cabinet 21 is set to it towards on the outside plate 211 on the outside of hull.Further, which is equipped with
Sea Chest 201 has grill unit 2011 on the Sea Chest 201 and enters seawater inside clack box through grid.
Seat board 22 is fixedly connected on outside plate 211, is covered to protect and be somebody's turn to do by backplate 23 towards the surface on the outside of hull
Surface is by sea water intrusion.Further, gasket 24 is equipped between seat board 22 and backplate 23, to reach the mesh of sealing seat board 22
's.
The suction box 2 of the present embodiment further include: the seal cover board 25 that can be removably installed on seat board 22.Work as sea
When bottom valve case 2 needs repairing, which is used to close the opening of suction box 2, at this point, the backplate 23 of suction box 2
It removes to be removably installed in seal cover board 25 on seat board 22 from seat board 22.
Specifically, which includes: the cover board body 251 of steel and is attached to 251 outer surface of cover board body
Waterproof sheet 252, the waterproof sheet 252 can be by way of bondings or the mode of spraying is attached to cover board body 251.Waterproof
Sheet material 252 is lightweight buoyancy material, the weight of the buoyancy that waterproof sheet 252 provides in the seawater substantially seal cover board 25 itself
Power.In the present embodiment, waterproof sheet 252 is material made of foam or polyurethane high-molecular organic material.Further
Ground, cover board body 251 is provided with reinforcing rib 2511 towards the outer surface of waterproof sheet 252, and waterproof sheet 252 covers reinforcing rib
2511, which can be one, be also possible to it is arranged in a crossed manner a plurality of so that seal cover board 25 bears stronger pressure
Power is suitable for absorbing water biggish ocean platform and large ship.
More preferably, it is provided with handle on the outer surface of waterproof sheet 252, facilitates operation.
In other embodiments, the buoyancy of waterproof sheet 252 in the seawater is greater than the gravity of its own, so that seal cover board
25 is easy to carry in the seawater.
Multiple air holes are additionally provided on seal cover board 25 in the present embodiment and can seal the cock of air hole
253, air hole passes through waterproof sheet 252 and cover board body 251 and communicates with the outside world clack box inner space.
Refering to Fig. 7, the present invention also provides a kind of method for maintaining of suction box, in the maintenance needs to suction box to it
It just can be carried out after being sealed processing to prevent seawater from entering hull interior, which includes:
Step S10, presets a seal cover board, which includes: the cover board body of steel and be attached to cover board body
The waterproof sheet of outer surface, waterproof sheet are lightweight buoyancy material, and the buoyancy of waterproof sheet in the seawater is greater than the weight of its own
Power.
Step S20 removes backplate for the suction box to need repairing, and seal cover board is fixedly installed on seat board
And close the opening of clack box.
Electrode, each pipeline in suction box is repaired or replaced in step S30.
After step S40, maintenance or replacement, seal cover board is removed, and the backplate dismantled before is re-installed in seat
On plate.
Next, refering to fig. 1 to Fig. 7, and combine the maintenance side that its suction box is illustrated for a semisubmersible drilling platform
Method.
In implementation steps S10, semisubmersible drilling platform in the present embodiment is equipped with 11 suction box 2, larboard
There are six distributions, and there are five starboard distributions；Wherein, five seas that five suction box 2 of larboard distribution are distributed with starboard respectively
Bottom valve case 2 is symmetrical arranged.Since 11 line style of ship hull plate of 2 position of every symmetrical two suction box is that single is write music
Face, to keep the Sea Chest 201 of two suction box 2 general.Therefore, the present embodiment is equipped with 11 backplates 23 and six
Seal cover board 25.
11 backplates 23 have been connect with seat board 22 when building, that is, by each backplate 23 with corresponding washer 26 with entirely
Threaded screw 27 is anchored on seat board 22, and is carried out mechanical process and carried out effectively preservative treatment together with hull, is protected
The precision of joint face is demonstrate,proved, to reduce the maintenance cost in later period.Simultaneously as the size of six seal cover boards 25, weight not phase
Together, in order to more readily identify, this six seal cover boards 25 are numbered, to correspond to 11 backplates 23.And pass through calculating
The weight for obtaining six seal cover boards 25 respectively, after adhering to waterproof sheet 252 on 251 outer surface of cover board body, waterproof sheet
252 buoyancy provided in the seawater are substantially equal to the gravity of seal cover board 25 itself, so that diver be made easily to take in the seawater
With the seal cover board 25.
In other embodiments, the buoyancy of waterproof sheet 252 in the seawater is greater than the gravity of its own.
Before implementation steps S20, anti-biological electrode 202, the pipeline for diagnosing each suction box 2 in advance (omit in figure
Show) and Sea Chest 201 service condition, to determine the position for the suction box 2 that needs repairing and the sea cock and valve that needs repairing
Case 2 is part replacement or all replacements.Then, successively the suction box 2 to need repairing is repaired one by one.
In implementation steps S20, according to service sequence, firstly, diver carries the seal cover board of the corresponding suction box 2
25, new gasket 24, new washer 26 and new 27 dive of complete thread screw are to first suction box 2 to need repairing
Position.Since the gravity of seal cover board 25 in the seawater is close to its buoyancy, the light carrying of diver is realized.Then, it dives under water
Member is removed complete thread screw 27 old on the suction box 2 by tool, and removes old washer 26, backplate 23 and old close
Packing 24；Wherein, since old complete thread screw 27, old washer 26 and old gasket 24 are by sea water intrusion, not
The leakproofness to guarantee installation is reused, and retaining backplate 23 and taking back on ship is subsequent reuse.Finally, by new
Gasket 24, seal cover board 25 are successively installed on seat board 22, and load onto new washer 26 by new complete thread screw 27 into
Row is fixed, and then, diver carries backplate 23 and returns on ship.
In implementation steps S30, according to diagnosis early period as a result, being replaced or being repaired in cabin；Specifically, new anti-
After bioelectrode 202 is installed, its leakproofness should be examined to reach seal request；Entered by seawater main line and repairs seabed
Inside clack box 2, to repair other pipelines and/Sea Chest 201 in suction box 2, until all maintenance, replacement operation finish.
It should be noted that due to having the seawater lacked in suction box 2, it in the process of disassembly can be suitably by seawater
Partly or entirely specifically replaced and maintenance activity after extraction.
During implementation steps S40, diver carry backplate 23 again dive to the position of the suction box 2, firstly,
Cock 253 on seal cover board 25 is extracted from air hole, so that the inside and outside pressure of suction box 2 reaches balance；
Then, seal cover board 25 is removed, backplate 23 is installed in situ to protect seat board 22.Finally, 25 band of seal cover board that will be removed
Return hull.
So far, the maintenance activity of first suction box 2 is completed.
Repeat the above steps S20 to step S40, and the suction box 2 that other positions need repairing is repaired, until needing
Suction box 2 to be repaired all complete by maintenance.
Suction box of the present invention is provided with backplate, has carried out effective protection to seat board and seat board is avoided to be influenced by sea water intrusion
The reduction of sealing effect improves ship and ocean platform to make seat board that can be used for a long time in the environment of sea bottom complex
Added value.
Further, be attached to waterproof sheet on seal cover board ontology so that the buoyancy of seal cover board itself close to its
Gravity mitigates the burden of diver, and operation is more easier, while reducing diver's underwater time, significantly reduces
Diver's risk in complex environment under water.
Although describing the present invention with reference to the above exemplary embodiment, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (10)
1. a kind of suction box characterized by comprising
Cabinet is set on the inside of hull bottom and connect with ship hull plate, and the cabinet has opening towards hull outside；
Seat board is fixedly installed on the outer surface in the rims week；
Backplate is covered on the outer surface of the seat board, and is detachably connected by fastener and the seat board.
2. suction box as described in claim 1, which is characterized in that the opening is equipped with Sea Chest, on the Sea Chest
Enter seawater inside clack box through grid with grill unit.
3. suction box as described in claim 1, which is characterized in that be equipped with gasket between the seat board and backplate.
4. a kind of seal cover board of suction box characterized by comprising the cover board body of steel and be attached to the cover board sheet
The waterproof sheet of external surface, the waterproof sheet are lightweight buoyancy material, and the buoyancy of the waterproof sheet in the seawater is greater than
The gravity of its own.
5. the seal cover board of suction box as claimed in claim 4, which is characterized in that set on the outer surface of the waterproof sheet
It is equipped with handle.
6. the seal cover board of suction box as claimed in claim 4, which is characterized in that the waterproof sheet is foam,
The buoyancy that the waterproof sheet is capable of providing in the seawater is substantially equal to the gravity of the seal cover board itself.
7. the seal cover board of suction box as claimed in claim 4, which is characterized in that the cover board body is towards the waterproof
The outer surface of sheet material is provided with reinforcing rib, and the waterproof sheet covers the reinforcing rib.
8. the seal cover board of suction box as claimed in claim 4, which is characterized in that the seal cover board is equipped with multiple ventilative
Hole and the cock that the air hole can be sealed, the air hole pass through the waterproof sheet and the cover board body and by valve
Case inner space communicates with the outside world.
9. a kind of suction box characterized by comprising close described in cabinet, seat board and claim 4 to 8 any one
Cover plate；The cabinet is set on the inside of hull bottom and connect with ship hull plate, and the cabinet has towards hull outside to be opened
Mouthful；The seat board is fixedly installed on the outer surface in the rims week；The seal cover board is removably installed in described
On seat board.
10. a kind of method for maintaining of suction box described in claims 1 to 3 any one, which is characterized in that comprising steps of
A default seal cover board, the seal cover board include: the cover board body of steel and are attached to the cover board body outer surface
Waterproof sheet, the waterproof sheet are lightweight buoyancy material, and the buoyancy of the waterproof sheet in the seawater is greater than the weight of its own
Power；
For the suction box to need repairing, backplate is removed, and seal cover board is fixedly installed on seat board and closes clack box
Opening；
Electrode, each pipeline in suction box is repaired or replaced；
After maintenance or replacement, seal cover board is removed, and the backplate dismantled before is re-installed on seat board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786246.XA CN109421896B (en) | 2017-09-04 | 2017-09-04 | Subsea valve box, sealing cover plate thereof, and maintenance method of subsea valve box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786246.XA CN109421896B (en) | 2017-09-04 | 2017-09-04 | Subsea valve box, sealing cover plate thereof, and maintenance method of subsea valve box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109421896A true CN109421896A (en) | 2019-03-05 |
| CN109421896B CN109421896B (en) | 2020-12-22 |
Family
ID=65513580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710786246.XA Active CN109421896B (en) | 2017-09-04 | 2017-09-04 | Subsea valve box, sealing cover plate thereof, and maintenance method of subsea valve box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109421896B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915640A (en) * | 2019-04-30 | 2019-06-21 | 广船国际有限公司 | Valve box and ship comprising it |
| CN113830269A (en) * | 2021-10-18 | 2021-12-24 | 中国舰船研究设计中心 | Flange structure for butt joint of pressure-resistant cabin sections of underwater special equipment and mounting method of flange structure |
| CN114394204A (en) * | 2022-01-10 | 2022-04-26 | 大连船舶重工集团有限公司 | Floating production oil storage and discharge platform subsea valve box sealing device |
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|---|---|
| CN109421896B (en) | 2020-12-22 |
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