CN112810758A

CN112810758A - Large ocean platform installation ship

Info

Publication number: CN112810758A
Application number: CN201911121511.8A
Authority: CN
Inventors: 陈新权; 欧阳义平; 杨启; 谭家华
Original assignee: Shanghai Jiao Tong University
Current assignee: Shanghai Jiao Tong University
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-05-18

Abstract

A large-scale offshore platform installation vessel, comprising: a catamaran with a propeller, a hoisting mechanism and two sets of sliding rails, wherein: the sliding rails are respectively arranged in the direction of the captain on both sides of the deck of the ship, and the hoisting mechanism passes through the sliding block It is arranged on the sliding track to realize the installation, dismantling or transportation of the jacket platform independently; the lifting mechanism includes: at least one set of walking door crane, driving device and brake locking device, wherein: the walking door crane is arranged on the On the sliding track, the driving device is arranged below the walking door crane. The invention adopts the catamaran type, which has excellent rapidity and seakeeping, and improves the lateral stability of the monohull; equipped with propellers, the transportation, installation and dismantling of the jacket can be completed without the cooperation of other auxiliary ships; construction The operating system is easy to build and operate.

Description

Large ocean platform installation ship

Technical Field

The invention relates to a technology in the field of ship engineering, in particular to a large-scale ocean platform installation ship.

Background

The large ocean engineering ship is mostly designed based on a basic function requirement, and on the basis, the use range is widened as much as possible and the competitive power is enhanced. The removal of decommissioned ocean platforms, particularly jacket platforms, has long been a concern to the engineering community. The conventional operation is that a large crane ship is matched with a transportation barge to operate, but the operation has large lifting capacity, but the conventional crane ship has small lifting capacity and is difficult to hoist large modules; the number of the ultra-large crane ships capable of meeting the construction requirements is small, and the cost is high. In the face of this manifestation, the concept of removing a vessel platform by a variety of Single-lift hoisting systems is emerging on the market, and systems operating in this manner suffer from the following disadvantages: the wave resistance is poor; the cost is high; the function is single; the self-carrying capacity is not available; is difficult to adapt to shallow water operation; the requirements on construction environment and personnel operation are high.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a large ocean platform installation vessel which has excellent wave resistance and can independently realize the installation, the removal and the transportation of a jacket platform.

The invention is realized by the following technical scheme:

the invention comprises the following steps: catamaran with propeller, hoisting mechanism and two sets of slide tracks, wherein: the sliding rails are respectively arranged in the ship length directions on the two sides of the deck, and the hoisting mechanism is arranged on the sliding rails through the sliding blocks so as to independently complete the installation, the removal or the transportation of the jacket platform.

The sliding track is in a T-shaped structure.

The sliding block is U-shaped to match with the sliding track.

The hoisting mechanism comprises: at least one set of walking gantry crane, drive arrangement and braking locking device, wherein: the walking gantry crane is arranged on the sliding track, the driving device is arranged below the walking gantry crane, and the braking locking device is arranged on the sliding track.

The walking gantry crane comprises: hoist, vertical support frame and horizontal beam, wherein: the vertical support frame and the horizontal cross beam form an inverted U-shaped truss main body, and the lifting appliance is located on the horizontal cross beam.

The horizontal cross beam is provided with a walking vehicle matched with the lifting appliance to adjust the lifting position.

The driving device is an oil cylinder, wherein: one end of the oil cylinder is connected with the bottom end of the vertical support frame, and the other end of the oil cylinder is connected with the sliding track through a bolt.

Technical effects

Compared with the prior art, the invention adopts the catamaran type, has excellent rapidity and wave resistance, and improves the transverse stability of the catamaran compared with a monohull type; the propeller is arranged, so that the transportation, installation and removal of the jacket can be completed without the cooperation of other auxiliary ships; the construction work system is easy to construct and operate.

Drawings

FIG. 1 is a side view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a diagram of the application of the present invention;

in the figure: a is a side view of a hoisting jacket; b is a front view of the hoisting jacket; c is a side view of the jacket placed on the deck; d is a front view of the jacket placed on the deck; the ship comprises a single ship body 1, a connecting bridge 2, a sliding track 3, a supporting base 4, a vertical supporting frame 5, a horizontal cross beam 6, a sliding block 7, a lifting appliance 8, a propeller 9, a deck chamber 10, an oil cylinder 11 and a hoisting mechanism 12.

Detailed Description

As shown in fig. 1 and 2, the present embodiment includes: two single hulls 1, two sets of taxi tracks 3, a power system and a hoisting mechanism 12, wherein: the two single ship bodies 1 are structurally connected through the connecting bridge 2, the sliding tracks 3 are respectively arranged in the ship length direction of the two single ship bodies 1 and cover the whole ship, the power system is positioned on the main ship body and is connected with the hoisting mechanism 12, and the hoisting mechanism 12 is arranged on the sliding tracks 3 through the sliding blocks 7.

The tail part of the deck is provided with a slot, and the two groups of sliding rails 3 are respectively arranged on two sides of the slot.

The bow side of the monohull vessel 1 is provided with a deckhouse 10.

The sliding track 3 is of a T-shaped structure as a whole.

The sliding block 7 is U-shaped to match with the sliding track 3.

The power system is realized by a hydraulic pump station (not shown in the figure), and the power system is connected with an oil cylinder 11 in the hoisting mechanism.

The lifting mechanism 12 comprises: four groups of hoists 8, support base 4, two sets of U font truss main parts, hydro-cylinder 11 and braking locking device fall, wherein: four groups of lifting appliances 8 are divided into two groups and are respectively arranged on two sets of truss main bodies, the supporting base 4 is arranged below the truss main bodies and is connected with the sliding block 7, one end of the oil cylinder 11 is connected with the supporting base 4, the other end of the oil cylinder is connected with the sliding track 3 through a bolt, and the braking locking device is arranged on the walking gantry crane.

The truss body includes: and the two groups of vertical support frames 5 and the horizontal cross beam 6 form an inverted U-shaped structure.

And the horizontal cross beam 6 is provided with a walking vehicle matched with the lifting appliance 8 to adjust the lifting position.

The brake locking device comprises: fixing base and bolt, wherein: the bolt is respectively connected with the fixed seat and the fixed limiting plate.

The coordination specifically comprises the following steps: the slide block tightly holds the T-shaped sliding track at two sides.

As shown in fig. 3, the above-described device operates by: according to the invention, when a ship reaches an operation position, the slot at the tail part of the ship is close to the jacket platform to be dismantled, and the relative position of the platform and the slot of the ship body is adjusted through the propeller 9 of the ship, so that the ship position meets the operation requirement. The sliding rail 3 is pushed by the oil cylinder 11 to drive the hoisting mechanism 12 to a jacket platform position, a hoisting cable on the hoisting tool 8 is fixed on the jacket, and the upper deck module is lifted by the hoisting tool 8 to be separated from the jacket; and moving the hoisting mechanism 12, placing the deck module on the deck and binding and fixing, moving the mechanism 12, placing the lower structure of the jacket on the deck and binding and fixing, returning and unloading the jacket and the deck module, and completing the dismantling operation of a jacket platform. The installation of jacket platform can be realized to the same reason.

The deck module is as follows: an upper deck structure of a jacket platform.

Compared with the prior art, the device can independently complete the installation, the removal and the transportation of the jacket platform without the assistance of other ships, greatly reduces the construction time, improves the operation efficiency and increases the operation window period compared with the conventional hoisting operation.

The foregoing embodiments may be modified in many different ways by those skilled in the art without departing from the spirit and scope of the invention, which is defined by the appended claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. a large-scale offshore platform installation ship is characterized in that, comprising: a catamaran with a propeller, a hoisting mechanism and two groups of skid tracks, wherein: the skid tracks are respectively arranged on the sides of the ship's deck in the direction of the length of the ship, The hoisting mechanism is set on the sliding track through the slider to realize the installation, removal or transportation of the jacket platform independently;

The hoisting mechanism includes: at least one set of traveling door crane, driving device and brake locking device, wherein: the traveling door crane is arranged on the sliding track, the driving device is arranged under the traveling door crane, and the braking locking device Set on the walking door hanging;

The walking door crane includes a spreader, a vertical support frame and a horizontal beam, wherein the vertical support frame and the horizontal beam form an inverted U-shaped truss body, and the spreader is located on the horizontal beam.

2 . The large-scale offshore platform installation vessel according to claim 1 , wherein the horizontal beam is provided with a traveling cart matched with a spreader to adjust the lifting position. 3 .

3. The large-scale offshore platform installation vessel according to claim 1, wherein the driving device is an oil cylinder, wherein: one end of the oil cylinder is connected with the bottom end of the vertical support frame, and the other end is connected with the sliding track through a bolt .

4. The large-scale offshore platform installation vessel according to claim 1, wherein a slot is provided at the rear of the deck.

5 . The large offshore platform installation vessel according to claim 1 , wherein a deckhouse is provided on the bow side of one hull of the double hull. 6 .

6 . The large-scale offshore platform installation vessel according to claim 1 , wherein the sliding track has a T-shaped structure. 7 .

7 . The large-scale offshore platform installation vessel according to claim 6 , wherein the sliding block is U-shaped to match the sliding track. 8 .