CN110949639B - Method for repairing mooring state of sea valve of surface ship and plugging tool suitable for method - Google Patents
Method for repairing mooring state of sea valve of surface ship and plugging tool suitable for method Download PDFInfo
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- CN110949639B CN110949639B CN201911299810.0A CN201911299810A CN110949639B CN 110949639 B CN110949639 B CN 110949639B CN 201911299810 A CN201911299810 A CN 201911299810A CN 110949639 B CN110949639 B CN 110949639B
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Abstract
The invention relates to the technical field of sea valve maintenance, and particularly discloses a method for repairing a sea valve mooring state of a water surface ship, which establishes a waterproof environment required by sea valve repair by temporarily plugging a suction grid of a sea valve box and comprises the following steps: manufacturing a plugging tool matched with the suction grating according to the size of the suction grating of the sea chest; plugging the suction grille through a plugging tool; the sea valve is disassembled, overhauled or replaced from the inner side direction of the cabin; after the fault is eliminated, the sea valve is reassembled; and removing the plugging tool from the suction grille. In addition, the invention also provides two special plugging tools suitable for the method. The invention solves the problem that the sea valve can not be safely repaired in the mooring state of the ship, provides a quick, safe and feasible method for repairing the sea valve in the mooring state of the wharf, avoids great manpower and material resources waste caused by docking or upgoing of the ship in maintenance of the sea valve, and saves the maintenance period while ensuring the safety of the ship.
Description
Technical Field
The invention relates to the technical field of maintenance of sea valves.
Background
When the surface ship is in a wharf mooring state, if the sea through valve is damaged, a large amount of seawater enters the cabin, and the safety of the ship is threatened. The sea valve is opened and closed frequently, so that the sea valve can be not sealed tightly during half a year to one year of operation. At present, in order to ensure the safety of ships, the sea valve is mainly repaired after a surface ship enters a dock. However, the ship docking repair workload is large, the time consumption is long, a large amount of manpower and material resources are needed, the docking cost is up to tens of thousands yuan a day, the ship can be docked for maintenance generally one year or even several years, and if the faulted sea valve is not maintained in time, great hidden danger is brought to ship navigation safety.
Disclosure of Invention
The invention aims to solve the problems, and provides a method for repairing a sea valve of a surface ship in a mooring state and a plugging tool suitable for the method, which can be used for preventing seawater from entering a cabin when the sea valve is quickly repaired when the surface ship is in a mooring state or a surface sailing state, so as to ensure the safety of the ship.
In order to solve the technical problem, the invention provides a method for repairing a mooring state of a sea valve of a surface ship, which is characterized in that a waterproof environment required by repairing the sea valve is established by temporarily plugging a suction grid of a sea valve box, and the method comprises the following steps:
s1, manufacturing a plugging tool matched with a suction grid according to the size of the suction grid of the sea chest;
s2, plugging the suction grille by using the plugging tool in the S1;
s3, disassembling, overhauling or replacing the sea valve from the inner side direction of the cabin;
s4, after the fault is eliminated, the sea valve is reassembled;
and S5, removing the plugging tool from the suction grille.
The preferable technical scheme for the method is that S2 is that a diving tool is equipped to launch water to a sea chest where a sea chest is located, and the external direction plugging tool is fixed on a suction grid of the sea chest;
s5 is, be equipped with diving tool and descend water to shutoff frock work position, remove the shutoff frock by inhaling on the grid.
The technical solution for improving the above method is that, between step S2 and step S3, the method further includes: S2A, pumping water in a sea valve box through a sea valve by using a pump, observing whether water permeates through an observation hole in the sea valve box, and if so, adjusting the installation angle of a plugging tool; otherwise, S3 is executed.
In a further improved method, before performing step S2A, the method further includes: and S2', preparing emergency equipment, and arranging a high-power drain pump and a blind plate near the sea chest.
The invention also provides a plugging tool for repairing the sea valve mooring state of a water surface ship, which comprises: the plugging plate, the connecting bolt and the locking nut;
the plugging plate is matched with a suction grid of the sea chest, and a plurality of bolt mounting holes are formed in the plugging plate;
the end part of the connecting bolt is provided with a limiting structure, the connecting bolt provided with the limiting structure is of a T-shaped structure, the width of the limiting structure is smaller than the gap between two adjacent linear grid strips on the suction grid, and the length of the limiting structure is larger than the distance between the far edges of the two adjacent linear grid strips;
the end part of the connecting bolt far away from the limiting structure penetrates through the bolt mounting hole in the plugging plate to be connected with the locking nut in a locking mode.
The technical scheme for improving the structure is as follows: a stop washer; the stop washer is arranged between the locking nut and the plugging plate.
The preferable technical scheme for the structure is that the plugging plate comprises: a support steel plate and a sealing element; the sealing member is disposed on a working surface of the support steel plate facing the suction grill.
The further preferred technical scheme is that the locking nut is a butterfly nut.
Still further preferably, the thickness of the support steel plate is not less than 5 mm.
The more preferable technical scheme is that the bolt mounting holes on the plugging plate are uniformly distributed along the edge of the plate surface of the plugging plate.
The invention has the beneficial effects that:
1. the sea valve is fixedly arranged at the upper end inside the sea valve box through a flange, and the sea valve is connected with a suction grid at the bottom of the sea valve box through a pipeline. The invention does not need to change the ship body or other structures, only a special plugging tool is manufactured according to the size of the suction grille at the bottom of the sea chest, the plugging tool is installed on the suction grille by a diver from the water, seawater is isolated outside the plugging tool, the diver can maintain the sea chest from one side of the cabin, and after the fault is eliminated, the diver can remove the plugging tool on the suction grille. The method for repairing the mooring state of the sea valve of the water surface ship and the plugging tool suitable for the method create conditions for rapidly repairing the sea valve of the water surface ship in the mooring state of a wharf, prevent seawater from entering a cabin and ensure the safety of the ship. The problem that the sea valve cannot be safely repaired when a ship is in a mooring state is solved, and the problems that the work load is large and the time consumption is long when the ship enters a dock to repair the sea valve are solved, so that a large amount of manpower and material resources are saved, and the repair period of the sea valve is shortened.
2. The invention does not need to change the existing structures of the ship body or the sea valve and the like, and ensures the original structure of the ship to the maximum extent, thereby not generating any risk or bringing any potential safety hazard caused by changing the ship body or the related structures. The plugging tool is simple in structure, low in cost and easy to manufacture.
3. The sea valve maintenance method and the plugging tool suitable for the method are used for maintaining the sea valve, maintenance is timely and strong, and maintenance cost is low.
4. According to the characteristic that the suction grille has a straight-line-shaped grille strip structure, the connecting bolt which is integrally in a T-shaped structure and provided with the limiting structure is arranged, the locking nut is matched to serve as the connecting component of the plugging tool, the locking structure of the connecting bolt penetrates through the gap of the straight-line-shaped grille strip structure, then the connecting bolt is rotated to intersect with the grille strip and is locked and connected with the locking nut, and therefore the installation of the plugging tool can be completed.
The invention solves the problem that the sea valve can not be safely repaired in the mooring state or the water surface state of the ship, and provides a quick, safe and feasible method for repairing the sea valve in the wharf mooring state.
Drawings
FIG. 1 is a flow chart illustrating a method for repairing a mooring state of a sea chest of a surface vessel according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a method for repairing a mooring state of a sea chest of a water surface vessel in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a plugging plate in the plugging tool adopted in embodiment 1 of the present invention.
Fig. 4 is a schematic view of a working state of the plugging tool for plugging the suction grid of the sea chest in embodiment 1 of the present invention.
Fig. 5 is an enlarged view of the part a in fig. 4.
The device comprises a sealing plate 1, a connecting bolt 2 with a limiting structure, a butterfly nut 3, a double-lug stop washer 4, an intake grille 5 and an intake grille seat 6.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following will explain in detail the specific implementation and operation principle of the method for repairing the mooring state of the sea chest of a surface vessel and the plugging tool suitable for the method according to the present invention with reference to the accompanying drawings and preferred embodiments.
The method for repairing the mooring state of the sea valve of the surface ship provided by the invention is used for establishing a waterproof environment required by repairing the sea valve by temporarily plugging the suction grating of the sea valve box, and the general flow schematic diagram is shown in figure 1. Fig. 2 illustrates a preferred method for repairing the sea chest of the surface vessel according to this embodiment, which includes the following steps:
s1, manufacturing a plugging tool matched with a suction grid according to the size of the suction grid of the sea chest.
S2, a diver is provided with a diving tool to drain water to a sea valve box where the sea valve is located, and the external direction plugging tool is fixed on a suction grid of the sea valve box.
S2A, pumping water in a sea valve box through a sea valve by using a pump, observing whether water permeates through an observation hole in the sea valve box, and if so, adjusting the installation angle of a plugging tool; otherwise, S3 is executed.
S3, disassembling, overhauling or replacing the sea valve from the inner side direction of the cabin.
And S4, after the fault is eliminated, reinstalling the sea valve.
And S5, the diver launches to the working position of the plugging tool and removes the plugging tool from the suction grille.
Before executing step S2A, to prevent the extreme event, the method further includes step S2': preparing emergency equipment, and arranging a high-power drain pump and a blind plate near a sea valve box. In case logical sea valve case water is too much, and the infiltration is serious, can draw water more swiftly through high-power drainage pump, adds the blind plate and leads to sea valve case upper portion flange department, can prevent that water from getting into the cabin.
As shown in fig. 3, a plugging tool for repairing a sea chest of a surface vessel in a mooring state of a wharf or a surface sailing state is further introduced in the embodiment, which provides necessary conditions for rapidly repairing the sea chest of the surface vessel in a wharf mooring state or a surface sailing state, and prevents seawater from entering a cabin when repairing the sea chest, and the certain surface vessel is taken as an object, and the plugging tool comprises: plugging plate 1, connecting bolt 2, butterfly nut 3.
Description of the manufacture of the plugging plate 1: the shutoff board includes: supporting steel plate, sealing member. The supporting steel plate has certain rigidity, the thickness is not less than 5mm generally, and the sealing element has certain compression amount. In this embodiment, the plugging plate 1 is made of a supporting steel plate with a thickness of 5mm, and preferably a seawater corrosion resistant supporting steel plate. The external structure and the size of the supporting steel plate are adapted to the suction grille 5 at the bottom of the sea chest, so that the suction grille 5 can be completely sealed, and seawater is prevented from entering the cabin. The seal is provided on the side of the support steel plate facing the suction grill 5. Preferably, a sealing member having a certain water-absorbing compressibility is used, and the sealing member used in this embodiment is a rubber pad. On the shutoff board, a plurality of bolt mounting holes are evenly seted up along shutoff board face edge in hole.
Description of the model selection of the wing nut 3: the specification of GB/T62.1-2004M12 is selected according to the size of the wing nut, and 6 wing nuts 3 are equipped with to a set of frock in this embodiment for with connecting bolt 2 cooperation with fix frock closure plate 1 on suction grille 5. A stop washer is further arranged between the butterfly nut 3 and the plugging plate 1, and the stop washer adopted in the embodiment is a double-lug stop washer 4.
As shown in fig. 4 and 5, the connecting bolt 2 has a limiting structure at the end of the connecting bolt 2, the cross section of the connecting bolt 2 with the limiting structure is of a T-shaped structure, the width of the limiting structure is smaller than the gap between the linear grid strips of the suction grid 5, and the length of the limiting structure is greater than the distance between the far edges of two adjacent linear grid strips on the suction grid 5.
The end part of the connecting bolt 2 far away from the limiting structure is a locking end, and the locking end of the connecting bolt penetrates through a bolt mounting hole in the plugging plate 1 from one side of the sealing element and is connected with the butterfly nut 3 through the double-lug stop washer 4.
During the use, move this shutoff frock on inhaling grid 5, insert the limit structure of the spacing end of connecting bolt 2 in the clearance of the style of calligraphy grid strip of inhaling grid 5 through the locking end of control connecting bolt 2, then rotate ninety degrees, make the limit structure of connecting bolt 2 intersect with the grid strip on inhaling grid 5 by inhaling 5 insides of grid, then lock butterfly nut 3 and ears lock washer 4, make limit structure and inhale 5 looks butt of grid and compress tightly closure plate 1, seal inhaling grid 5.
When a ship repairs the sea valve in a wharf mooring state, repair personnel are equipped with diving tools to drain water to the sea valve box where the sea valve is located, and the tool is fixedly installed on a suction grid 5 of the sea valve box through butterfly nuts to prevent seawater from entering the ship. The tool is fixed in a sea valve box suction grid 5 to prevent outboard seawater/river water from entering a cabin, maintenance personnel can safely detach, inspect, repair or replace the sea valve in the cabin, the sea valve is reassembled after the fault of the sea valve is eliminated, and then the tool is detached to realize the safe and rapid repair of the sea valve of a water surface ship in a wharf mooring or water surface sailing state.
In the embodiment, the repair of the sea valve of a ship is completed in the wharf state in 2019, the repair of the sea valve by the ship in the dock is avoided, and a large amount of manpower, material resources and repair period are saved for a factory. The submarine team can consistently reflect the tool, and the tool is safe, reliable, simple and practical, and the maintenance sea valve opening efficiency is greatly improved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a shutoff frock that is used for surface of water boats and ships to open sea valve to moor state to repair which characterized in that includes: the plugging plate, the connecting bolt and the locking nut;
the plugging plate is matched with a suction grid of the sea chest, and a plurality of bolt mounting holes are formed in the plugging plate;
the end part of the connecting bolt is provided with a limiting structure, the connecting bolt provided with the limiting structure is of a T-shaped structure, the width of the limiting structure is smaller than the gap between two adjacent linear grid strips on the suction grid, and the length of the limiting structure is larger than the distance between the far edges of the two adjacent linear grid strips;
the end part of the connecting bolt far away from the limiting structure penetrates through the bolt mounting hole in the plugging plate to be in locking connection with the locking nut;
the limiting structure is used for being inserted into the gaps of the straight-line-shaped grating strips of the suction grating and then rotating ninety degrees when the plugging plate is installed, so that the limiting structure is intersected with the grating strips on the suction grating from the inner side of the suction grating.
2. The plugging tool for repairing the sea chest of the surface vessel according to claim 1, further comprising: a stop washer; the stop washer is arranged between the locking nut and the plugging plate.
3. The plugging tool for repairing the sea chest of the surface vessel according to claim 1 or 2, wherein the plugging plate comprises: a support steel plate and a sealing element; the sealing member is disposed on a working surface of the support steel plate facing the suction grill.
4. The plugging tool for repairing the sea chest of the surface vessel in the mooring state as recited in claim 3, wherein the lock nut is a wing nut.
5. The plugging tool for repairing the sea chest of the surface vessel in the mooring state as recited in claim 4, wherein the thickness of the supporting steel plate is not less than 5 mm.
6. The plugging tool for repairing the sea chest of the surface ship according to claim 5, wherein the bolt mounting holes on the plugging plate are uniformly arranged along the edge of the plate surface of the plugging plate.
7. A repair method for a mooring state of a sea chest of a surface ship, which is based on the plugging tool of any one of claims 1 to 6, and is characterized in that a waterproof environment required by repairing the sea chest is established by temporarily plugging a suction grid of the sea chest, and the repair method comprises the following steps:
s1, manufacturing a plugging tool matched with a suction grid according to the size of the suction grid of the sea chest;
s2, plugging the suction grille by using the plugging tool in the S1;
s3, disassembling, overhauling or replacing the sea valve from the inner side direction of the cabin;
s4, after the fault is eliminated, the sea valve is reassembled;
and S5, removing the plugging tool from the suction grille.
8. The method for repairing the mooring state of the sea chest of the surface vessel as claimed in claim 7, wherein S2 is that a diving tool is provided to launch water to the sea chest where the sea chest is located, and the external direction plugging tool is fixed on a suction grille of the sea chest;
s5 is, be equipped with diving tool and descend water to shutoff frock work position, remove the shutoff frock by inhaling on the grid.
9. The method for repairing sea chest of claim 7 wherein between steps S2 and S3, further comprising: S2A, pumping water in a sea valve box through a sea valve by using a pump, observing whether water permeates through an observation hole in the sea valve box, and if so, adjusting the installation angle of a plugging tool; otherwise, S3 is executed.
10. The method for repairing sea chest of claim 9 wherein before performing step S2A, further comprising: and step S2', emergency equipment is prepared, and a high-power drain pump and a blind plate are arranged near the sea chest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299810.0A CN110949639B (en) | 2019-12-17 | 2019-12-17 | Method for repairing mooring state of sea valve of surface ship and plugging tool suitable for method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299810.0A CN110949639B (en) | 2019-12-17 | 2019-12-17 | Method for repairing mooring state of sea valve of surface ship and plugging tool suitable for method |
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| Publication Number | Publication Date |
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| CN110949639A CN110949639A (en) | 2020-04-03 |
| CN110949639B true CN110949639B (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911299810.0A Active CN110949639B (en) | 2019-12-17 | 2019-12-17 | Method for repairing mooring state of sea valve of surface ship and plugging tool suitable for method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112158317A (en) * | 2020-09-04 | 2021-01-01 | 中船黄埔文冲船舶有限公司 | Tool for underwater replacement of subsea door valve and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201538416U (en) * | 2009-12-11 | 2010-08-04 | 大连船舶重工集团有限公司 | Sealing cap for sealing large opening of underwater ship |
| CN204383725U (en) * | 2014-08-21 | 2015-06-10 | 沪东中华造船(集团)有限公司 | For the close property hole sealing device of sea chest grate opening |
| CN204587261U (en) * | 2015-04-28 | 2015-08-26 | 大连船舶重工集团有限公司 | Be applicable to the sea chest plugging device of FPSO ship type |
| CN110254615A (en) * | 2019-06-27 | 2019-09-20 | 广船国际有限公司 | A kind of kingston valve changes method and applies the closure tooling at it under water |
-
2019
- 2019-12-17 CN CN201911299810.0A patent/CN110949639B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201538416U (en) * | 2009-12-11 | 2010-08-04 | 大连船舶重工集团有限公司 | Sealing cap for sealing large opening of underwater ship |
| CN204383725U (en) * | 2014-08-21 | 2015-06-10 | 沪东中华造船(集团)有限公司 | For the close property hole sealing device of sea chest grate opening |
| CN204587261U (en) * | 2015-04-28 | 2015-08-26 | 大连船舶重工集团有限公司 | Be applicable to the sea chest plugging device of FPSO ship type |
| CN110254615A (en) * | 2019-06-27 | 2019-09-20 | 广船国际有限公司 | A kind of kingston valve changes method and applies the closure tooling at it under water |
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| CN110949639A (en) | 2020-04-03 |
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