CN213442944U - Moon pool cover suitable for J-type hoisting pipe laying ship - Google Patents
Moon pool cover suitable for J-type hoisting pipe laying ship Download PDFInfo
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- CN213442944U CN213442944U CN202022578949.3U CN202022578949U CN213442944U CN 213442944 U CN213442944 U CN 213442944U CN 202022578949 U CN202022578949 U CN 202022578949U CN 213442944 U CN213442944 U CN 213442944U
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- moon pool
- pool cover
- cover body
- pipe
- jack
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Abstract
The utility model discloses a moon pool cover suitable for a J-type hoisting pipe laying ship, which comprises a moon pool cover body; the moon pool cover body is connected with a plurality of supporting bases and a plurality of limiting devices, and the limiting devices are positioned beside the supporting bases; a detachable protective railing is arranged on one side edge of the moon pool cover body facing the moon pool opening, and notches are formed in two corner positions of the side edge; the moon pool cover body is provided with a plurality of breathable observation grids and a plurality of air holes; the moon pool cover body is provided with a sunken lifting device and an anti-bouncing device; and a pipe laying equipment base is arranged on the central line of the moon pool cover body. The utility model provides a moon pool cover with simple structure, convenient use and low manufacturing and maintenance cost.
Description
Technical Field
The utility model relates to a jack-up pipe laying ship with J type pipe laying function, more specifically say, relate to a moon pool lid suitable for on J type jack-up pipe laying ship.
Background
When the J-type pipe-laying ship carries out pipe laying operation, a marine pipe needs to be lowered through J-type tower equipment to enter the position below the water surface to the seabed, and a sea passage-moon pool which can penetrate through a main ship body is needed in the arrangement of part of the J-type pipe-laying ship so as to meet the requirements of equipment arrangement and operation. The arrangement of the moon pool facilitates the underwater operation, but when the J-type pipes are laid, a part of equipment still needs to be arranged in the moon pool area, and in addition, in order to reduce the influence of waves on the equipment on the main deck as much as possible, the part of the moon pool needs to be sealed. The moon pool cover is the main equipment used as a base for sealing the moon pool and the pipe laying equipment.
At present, the common moonpool cover is of a lifting type and a hydraulic power type. The hoisting type moonpool cover is simple in structure, no extra equipment is provided, a plurality of cranes with different hoisting capacities are arranged on the hoisting pipelaying ship, but the common hoisting type moonpool cover is provided with a whole circle of flange seat ring, and then the cover is fixed on the seat ring by bolts and nuts, so that the difficulty of processing precision is increased by the whole circle of flange seat ring for a moonpool cover scheme with a large size and an equipment base arranged on the cover, and the cover body is inconvenient to disassemble and assemble due to too many fasteners; the hydraulic power type has a hydraulic mechanism, so that the structure is complex, the occupied space is large, and the application occasions are limited.
In addition, the cover is not provided with observation holes and air holes, so that people cannot conveniently check the equipment condition inside the moon pool, and the air inside the moon pool is not discharged.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that exists among the prior art, the utility model aims at providing a moon pool lid suitable for on J class jack-up pipe laying ship provides a simple structure, convenient to use, the manufacturing maintenance is with low costs moon pool lid.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a moon pool cover suitable for a J-type hoisting pipe-laying ship comprises a moon pool cover body;
the moon pool cover body is connected with a plurality of supporting bases and a plurality of limiting devices, and the limiting devices are positioned beside the supporting bases;
a detachable protective railing is arranged on one side edge of the moon pool cover body facing the moon pool opening, and notches are formed in two corner positions of the side edge;
the moon pool cover body is provided with a plurality of breathable observation grids and a plurality of air holes;
the moon pool cover body is provided with a sunken lifting device and an anti-bouncing device;
and a pipe laying equipment base is arranged on the central line of the moon pool cover body.
Preferably, a plurality of supporting bases and a plurality of limiting devices are welded on the surrounding walls of three sides of the moon pool cover body, which do not face the moon pool opening.
Preferably, the supporting base is provided with a supporting base plate, and the limiting devices are provided with limiting adjusting plates.
Preferably, a clamping groove is formed in the position, used for welding the limiting device, of the moon pool cover body.
Preferably, a limiting plate is arranged on the clamping groove.
Preferably, the limiting device comprises a transverse limiting device and a longitudinal limiting device.
Preferably, the anti-bouncing device comprises a moving track arranged in the moon pool cover body, a movable bolt arranged in the moving track, and a turnover cover plate positioned above the movable bolt.
Preferably, the movable bolt comprises a bolt shaft arranged in the movable track, a limit screw arranged at the rear end part of the bolt shaft and a handle;
the front end part of the bolt shaft is matched with the longitudinal limiting device.
Preferably, the sinking type hoisting device comprises a hoisting eye plate reinforcing box embedded in the surface of the moon pool cover body, and a hoisting eye plate which is connected in the hoisting eye plate reinforcing box through a hoisting eye plate pin.
Preferably, the lifting eye plate reinforcing box is provided with a water flowing hole.
Compared with the conventional moon pool cover, the moon pool cover applicable to the J-type hoisting pipe laying ship can adjust the installation flatness according to the on-site manufacturing precision, and ensures the installation precision; the guide limiting device is arranged to facilitate the field installation; the anti-bouncing device is arranged, so that the moon pool cover is firmly fixed when the ship sails; install bleeder vent and observation grid, the staff of being convenient for looks over the in service behavior of the inside pipe laying equipment of moon pool lid, also is favorable to the discharge of the inside air of moon pool, alleviates the atress to moon pool lid body.
Drawings
FIG. 1 is a schematic plan view of the moon pool cover of the present invention;
FIG. 2 is a side view of the support base in the moon pool cover of the present invention;
FIG. 3 is a side view of the support base and the position limiting device in the moon pool cover of the present invention;
FIG. 4 is a schematic view of the anti-bouncing device in the moon pool cover of the present invention in a locked state;
FIG. 5 is a schematic view of the anti-bouncing device in the moon pool cover of the present invention in an unlocked state;
fig. 6 is a schematic view of a slot in the moonpool cover of the present invention;
FIG. 7 is a schematic view in the direction E of FIG. 6;
FIG. 8 is a schematic view of the movable bolt in the moon pool cover of the present invention;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a schematic view of the sinking type hoisting device in the moon pool cover of the present invention;
FIG. 11 is a top view of FIG. 10;
FIG. 12 is a schematic view in the direction I of FIG. 1;
FIG. 13 is a schematic view in the direction A of FIG. 12;
FIG. 14 is a schematic view of direction II of FIG. 1;
FIG. 15 is a schematic view in the direction B of FIG. 14;
FIG. 16 is a schematic view in the direction C-C of FIG. 15;
FIG. 17 is a schematic view of FIG. 1 in the direction III;
fig. 18 is a schematic view in the direction D in fig. 17.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Please refer to fig. 1 and 12 to 18, the moon pool cover for a J-type hoisting pipe-laying ship provided by the present invention comprises a moon pool cover body 1, wherein the moon pool cover body 1 is designed to bear a certain external load and equipment weight according to the actual working condition requirement.
According to the arrangement requirement of the J-type hoisting pipe-laying ship, a plurality of supporting bases 2 and a plurality of limiting devices are welded on three side steel enclosure walls of the moon pool cover body 1, which do not face the moon pool opening, and each limiting device comprises a transverse limiting device 3 and a longitudinal limiting device 4.
The quantity of the supporting bases 2 is calculated and determined according to the size and the stress of the moon pool cover body 1, two supporting bases 2 are welded on the steel surrounding wall of the opposite side edge of the moon pool cover body 1 facing one side edge of the moon pool opening in the embodiment, and three supporting bases 2 are welded on the steel surrounding walls of the other two side edges.
The center line of the moon pool cover body 1 is provided with a pipe laying equipment base 12.
When the moon pool cover body 1 is installed, firstly, the main hull deck 5 is used as a positioning base to weld and fix the support base 2 on the steel enclosure wall of the moon pool cover body 1 in advance, then the center line of the pipe laying equipment base 12 is used as a reference, the center line of the support base 2 on the moon pool cover body 1 is aligned with the center line of the moon pool cover body to be used as transverse positioning, and the transverse limiting device 3 and the longitudinal limiting device 4 are installed.
The limiting device is welded and installed beside the supporting base 2, wherein the longitudinal limiting device 4 and the movable bolt are matched to form an anti-jump device 11.
Moon pool lid body 1 is provided with detachable protection railing 6 on towards moon pool open-ended side, and moon pool open-ended side is moon pool non-closed area and pipelaying equipment, for protection personal safety, has installed detachable protection railing 6, all sets up jaggedly on two bight positions of this side simultaneously, avoids the cable duct 7 of J class tower equipment, avoids interfering.
The moon pool cover body 1 is provided with a plurality of ventilating observation grids 8 and a plurality of ventilating holes 9.
The moon pool cover body 1 is provided with a sunken lifting device 10, a movable bolt 19 in the anti-jumping device 11 and a flip plate 20.
Except for the pipelaying equipment base 12, all the surfaces of the components mounted on the moon pool cover body 1 are flush with the moon pool cover body 1 surface, and the moon pool cover body 1 is flush with the main hull deck 5.
As shown in fig. 2 to 3 and fig. 6 to 7, the supporting base 2 is provided with a supporting base plate 13, and the horizontal limiting device 3 and the vertical limiting device 4 are provided with a limiting adjustment plate 14. The supporting base plate 13 on the supporting base 2 is installed in a spot welding mode, the thickness of the supporting base plate 13 is polished according to the deformation result of the moon pool cover body 1 and the equipment after installation, and finally the requirement for the height difference of the reference surface of the equipment is met. The thickness of the limiting adjusting plate 14 is adjusted according to the gap between the widths of the limiting devices corresponding to the widths of the clamping grooves 15 on the moon pool cover body 1, and the gap is guaranteed to meet the design control requirements.
The limiting plate 16 is arranged on the clamping groove 15, the guiding and limiting effects are achieved, and the supporting plate 17 arranged on the moon pool cover body 1 plays a supporting role.
As shown in fig. 4 to 5, the anti-jump device 11 includes a moving rail 18 disposed in the moon pool cover body 1, a movable bolt 19 disposed in the moving rail 18, a flip plate 20 disposed above the movable bolt 19, and a drain hole 21.
The flip plate 20 ensures that the surface of the moon pool cover body 1 is flush, thereby protecting the safety of personnel and preventing sundries from falling into the anti-bouncing device 11.
After the moon pool cover body 1 is installed in place, the movable bolt 19 in the anti-bouncing device 11 needs to be inserted into the longitudinal limiting device 4 and is in a locking state, so that the moon pool cover body 1 is prevented from shaking possibly generated when a ship navigates.
As shown in fig. 8 to 9, the movable bolt 19 includes a bolt shaft 22 disposed in the movable rail 18, a limit screw 23 disposed at a rear end of the bolt shaft 22, and a handle 24, and a front end of the bolt shaft 22 is engaged with a bolt hole 29 of the longitudinal limit device 4.
Referring to fig. 10 to 11, the sunken lifting device 10 includes a lifting eye plate reinforcing box 25 embedded in the surface of the moonpool cover body 1, and a lifting eye plate 27 connected to the lifting eye plate reinforcing box 25 through a lifting eye plate pin 26, wherein the lifting eye plate 27 can rotate around the lifting eye plate pin 26.
The hoisting eye plate reinforcing box 25 is provided with a water flowing hole 28 to prevent water accumulation.
The utility model discloses during the operation of hoisting by crane of moon pool lid, at first turn up flip board 20 among the anti-bouncing device 11, stir movable bolt 19, make it be in the unblock state, turn up the lifting eye plate 27 among the formula hoisting accessory 10 again, then hoist and mount.
To sum up, the utility model discloses moon pool lid compares the advantage with current conventional moon pool lid and lies in: the installation flatness can be adjusted according to the on-site manufacturing precision, and the installation precision is ensured; the guide device is arranged to facilitate the field installation; install anti-bouncing device for the moon pool lid is fixed firm when boats and ships are sailed and is installed bleeder vent and observation grid, and the staff of being convenient for looks over the in service behavior of the inside pipe laying equipment of moon pool lid, also is favorable to the discharge of the inside air of moon pool, alleviates the atress to the moon pool lid body.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a moon pool lid suitable for on J class jack-up pipe laying ship which characterized in that: comprises a moon pool cover body;
the moon pool cover body is connected with a plurality of supporting bases and a plurality of limiting devices, and the limiting devices are positioned beside the supporting bases;
a detachable protective railing is arranged on one side edge of the moon pool cover body facing the moon pool opening, and notches are formed in two corner positions of the side edge;
the moon pool cover body is provided with a plurality of breathable observation grids and a plurality of air holes;
the moon pool cover body is provided with a sunken lifting device and an anti-bouncing device;
and a pipe laying equipment base is arranged on the central line of the moon pool cover body.
2. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 1, wherein: a plurality of supporting bases and a plurality of limiting devices are welded on three side wall walls of the moon pool cover body, which do not face the moon pool opening.
3. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 2, wherein: the supporting base is provided with a supporting base plate, and the limiting devices are provided with limiting adjusting plates.
4. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 2, wherein: and a clamping groove is formed in the position, used for welding the limiting device, of the moon pool cover body.
5. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 4, wherein: and a limiting plate is arranged on the clamping groove.
6. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 2, wherein: the limiting device comprises a transverse limiting device and a longitudinal limiting device.
7. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 6, wherein: the anti-jumping device comprises a moving track arranged in the moon pool cover body, a movable bolt arranged in the moving track, and a turnover cover plate positioned above the movable bolt.
8. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 7, wherein: the movable bolt comprises a bolt shaft arranged in the movable track, a limit screw arranged at the rear end part of the bolt shaft and a handle;
the front end part of the bolt shaft is matched with the longitudinal limiting device.
9. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 1, wherein: the sinking type hoisting device comprises a hoisting eye plate reinforcing box embedded in the surface of the moon pool cover body, and a hoisting eye plate which is connected in the hoisting eye plate reinforcing box through a hoisting eye plate pin.
10. Moon pool cover adapted for use on a class J jack-up pipe-laying vessel, according to claim 9, wherein: and the hoisting eye plate reinforcing box is provided with a water flowing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022578949.3U CN213442944U (en) | 2020-11-10 | 2020-11-10 | Moon pool cover suitable for J-type hoisting pipe laying ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022578949.3U CN213442944U (en) | 2020-11-10 | 2020-11-10 | Moon pool cover suitable for J-type hoisting pipe laying ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213442944U true CN213442944U (en) | 2021-06-15 |
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ID=76299590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022578949.3U Active CN213442944U (en) | 2020-11-10 | 2020-11-10 | Moon pool cover suitable for J-type hoisting pipe laying ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213442944U (en) |
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2020
- 2020-11-10 CN CN202022578949.3U patent/CN213442944U/en active Active
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