CN211167294U

CN211167294U - Operating system for opening and closing moon pool bottom cover

Info

Publication number: CN211167294U
Application number: CN201921328702.7U
Authority: CN
Inventors: 侯瑞剑; 王树山; 徐勇
Original assignee: Cosco Shipping Heavy Industry Dalian Co Ltd
Current assignee: Cosco Shipping Heavy Industry Dalian Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-08-04
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses an operating system is opened and close to moon pool bottom, including moon pool ballast system, hanging beam structure, cable wire, first lifting hook and second lifting hook, moon pool ballast system sets up in the moon pool, and first lifting hook passes through cable wire and hanging beam structural connection, and the second lifting hook is connected with the cable wire, and the cable wire of connecting first lifting hook and second lifting hook is connected respectively at the both ends of moon pool bottom. The utility model discloses operating system is opened and close to moon pool bottom through the design of simplifying the cabin cover, utilizes self on the ship to hang heavy facility, realizes opening and close operation of moon pool bottom, and to the crew, its operation process is not only simple, easy operation, can save shipbuilding and maintenance cost greatly moreover.

Description

Operating system for opening and closing moon pool bottom cover

Technical Field

The invention relates to the field of ship building technology and article hoisting technology safety, in particular to a moonpool bottom cover opening and closing operation system.

Background

In the design of the ship, all functional requirements and feasibility of realization of the ship need to be considered, a moon pool is taken as a common structural characteristic of some ocean engineering ships, is distributed on an open deck of the ship and is used for laying submarine cables, lowering and recovering submarine oil production equipment, lowering and recovering underwater robots or diving equipment and the like, the importance of the functions of the moon pool accounts for more than 50 percent of the value of the whole ship, the interior of the moon pool can generate a 'sloshing' effect and a 'piston' effect at sea due to the action of sea waves, the normal navigation of the ship is seriously influenced, in order to improve the navigation speed economy of the ship, the bottom of the moon pool is usually closed by a specific cabin cover when the ship navigates, after the moon pool bottom cover reaches a ship operation sea area, the moon pool bottom cover is opened for normal construction operation, after the operation construction is finished, the moon pool bottom cover is closed, the ship is far away from the construction sea area, the opening and closing operation of the hatch cover at the bottom of the moon pool is not easy, the feasibility of the hatch cover directly influences the realization of the functional value of the ship, if the hatch cover and the like are designed to be complex, if the hatch cover and the like adopt an electro-hydraulic mode, the maintenance and the repair are difficult, the construction cost of the ship is greatly increased, how to solve the problem economically and practically, all circles of diligence and discussion are still needed.

Disclosure of Invention

The invention aims to provide a moonpool bottom cover opening and closing operation system which is simple to operate, safe, reliable and low in manufacturing cost.

The technical scheme adopted by the invention for realizing the purpose is as follows: the utility model provides an operating system is opened and close to moon pool bottom, includes moon pool ballast system, hanging beam structure, cable wire, first lifting hook and second lifting hook, moon pool ballast system sets up in the moon pool, first lifting hook passes through cable wire and hanging beam structural connection, the second lifting hook is connected with the cable wire, the both ends at moon pool bottom are connected respectively to the cable wire of connecting first lifting hook and second lifting hook.

The moon pool ballast system is composed of pipelines and valves and is integrated in the whole ship ballast system.

And the moon pool bottom cover is provided with a guide mechanism and a lifting lug.

Lifting lugs are arranged at two ends of the lifting beam structure.

According to the moonpool bottom cover opening and closing operation system, the design of the hatch cover is simplified, the opening and closing operation of the moonpool bottom cover is realized by using self hoisting facilities on a ship, the operation process of a crew is simple and easy to operate, and the ship building and maintenance cost can be greatly saved.

Drawings

Fig. 1 is a schematic view of closing a moonpool bottom cover of an opening and closing operation system of the moonpool bottom cover according to the present invention.

Fig. 2 is a schematic view illustrating opening of a moonpool bottom cover of an opening and closing operation system for the moonpool bottom cover according to the present invention.

Fig. 3 is a schematic structural diagram of a moonpool bottom cover of an opening and closing operation system of the moonpool bottom cover according to the present invention.

Fig. 4 is a schematic view of fig. 3 from direction a-a.

Fig. 5 is a schematic structural view of a hanging beam of the operating system for opening and closing the bottom cover of the moon pool.

Fig. 6 is a schematic view of the moon pool bottom cover entering and exiting the moon pool of the operating system for opening and closing the moon pool bottom cover according to the present invention.

Fig. 7 is a schematic view of the direction a-a of fig. 6.

In the figure: 1. a moon pool ballast system; 2. a moon pool bottom cover; 3. a hanging beam structure; 4. a steel cord; 5. a first hook; 6. a second hook; 7. a moon pool; 8. a guide mechanism; 9. and (7) lifting lugs.

Detailed Description

As shown in fig. 1 to 7, the operating system for opening and closing the moon pool bottom cover comprises a moon pool ballast system 1, a hanging beam structure 3, a steel cable 4, a first hook 5 and a second hook 6, wherein the moon pool ballast system 1 is arranged in the moon pool, the first hook 5 is connected with the hanging beam structure 3 through the steel cable 4, the second hook 6 is connected with the steel cable 4, the steel cable 4 connecting the first hook 5 and the second hook 6 is respectively connected with two ends of the moon pool bottom cover 2, the moon pool ballast system 1 is composed of pipelines and valves and is integrated in the whole ship ballast system, the moon pool bottom cover 2 is provided with a guide mechanism 8 and lifting lugs 9, the lifting lugs 9 are arranged at the two ends of the hanging beam structure 3, the opening and closing operation of the moon pool bottom cover is carried out in the actual opening operation process, firstly, water in a moon pool is emptied by using a moon pool ballast system 1, and a crew connects all components according to the figure 1 and applies proper pretightening force through a first lifting hook 5 and a second lifting hook 6; the moon pool ballast system 1 is started, seawater is injected into the moon pool structure, and the water level is consistent with the outboard water level; simultaneously lowering the first lifting hook 5 and the second lifting hook 6 to a certain height, stopping lowering the first lifting hook 5, and continuing to lower the second lifting hook 6 until the load displayed by the second lifting hook 6 is close to zero, and the bottom cover of the moon pool is completely opened, wherein the state is shown in fig. 2; adjusting the position of the first hook 5 to be positioned at the center of the moon pool, and simultaneously rotating the first hook 5 or the hanging beam structure by 3 to 45 degrees to enable the moon pool bottom cover 2 to be positioned at the diagonal position of the moon pool, as shown in fig. 6, lifting the first hook 5 can realize that the whole moon pool bottom cover 2 is lifted away from the moon pool structure and stored on a deck or at a preset position of a wharf; when the moonpool cover is closed, the moonpool bottom cover 2 is lifted by rotating the first and

second hooks

5 and 6, the hanging beam structure 3 and the steel cable 4, and is lowered into the hull moonpool structure according to the diagonal position, referring to fig. 6; after the top of the hatch cover is lowered to a ship bottom for a certain height, rotating the first lifting hook 5 or the hanging beam structure 3 for minus 45 degrees, lifting the second lifting hook 6 to a certain height, so that the moon pool bottom cover is in a horizontal state, then simultaneously lifting the first lifting hook 5 and the second lifting hook 6 at a low speed, and stopping operating the lifting hooks after the pretightening force of the lifting hooks reaches a value when the lifting hooks are opened; and (3) opening the moon pool ballast system 1, draining water in the moon pool structure until the moon pool structure is emptied, and at the moment, finishing the installation of the moon pool bottom cover and finishing the installation of the protection bolt.

Claims

1. The utility model provides an operating system is opened and close to moon pool bottom which characterized in that: the device comprises a moon pool ballast system, a hanging beam structure, a steel cable, a first lifting hook and a second lifting hook, wherein the moon pool ballast system is arranged in a moon pool, the first lifting hook is connected with the hanging beam structure through the steel cable, the second lifting hook is connected with the steel cable, and the steel cable connected with the first lifting hook and the second lifting hook is respectively connected with two ends of a moon pool bottom cover.

2. The operating system for opening and closing the moon pool bottom cover according to claim 1, wherein: the moon pool ballast system is composed of pipelines and valves and is integrated in the whole ship ballast system.

3. The operating system for opening and closing the moon pool bottom cover according to claim 1, wherein: and the moon pool bottom cover is provided with a guide mechanism and a lifting lug.

4. The operating system for opening and closing the moon pool bottom cover according to claim 1, wherein: lifting lugs are arranged at two ends of the lifting beam structure.