CN215828256U

CN215828256U - Lifting platform for lifting and mounting FPSO upper module

Info

Publication number: CN215828256U
Application number: CN202121161348.0U
Authority: CN
Inventors: 海燕; 王红军
Original assignee: Bomesc Offshore Engineering Co Ltd
Current assignee: Bomesc Offshore Engineering Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-02-15
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a lifting platform for lifting and mounting an upper module of an FPSO (floating production storage and offloading) system, which comprises four tower columns arranged along the vertical direction, wherein a cross beam is fixed between every two adjacent tower columns, two ends of each cross beam are respectively welded and fixed with the top walls of the tower columns, two ends of each cross beam are respectively provided with a tension oil cylinder, each tension oil cylinder is clamped and connected with a steel strand, the steel strand passes through a through hole on the cross beam and is fixedly connected with a lifting bottom plate, the lifting bottom plate is arranged in the four tower columns, four corners of the lifting bottom plate are provided with right-angle notches matched with the inner side shapes of the tower columns and can slide up and down along the tower columns, four corners of the top wall of the lifting bottom plate are respectively provided with a jacking oil cylinder, and oil rods of the jacking oil cylinders are respectively fixedly connected with the bottom walls of a compensation bottom plate. Adopt this platform can guarantee the butt joint precision of FPSO upper portion module and FPSO deck to the utmost, improve the installation effectiveness.

Description

Lifting platform for lifting and mounting FPSO upper module

Technical Field

The utility model relates to a lifting platform, in particular to a lifting platform for lifting and mounting an upper module of an FPSO.

Background

The FPSO upper module and the FPSO hull are separated from each other in ocean engineering, and the installation work needs to be completed on a wharf after the FPSO upper module is built. In the actual operation process, a suspension method is most commonly used, a large gantry crane is used for hoisting the FPSO upper module to the FPSO hull deck, the method needs to comprehensively consider the hoisting capacity and the gravity center position of the upper module, and the installation efficiency and the safety are low; the other method is installation by a lifting method, wherein the upper module is lifted to the FPSO deck plane by a hydraulic system and then is installed in a sliding manner, but the method has severe requirements on the operating environment, the FPSO hull can generate multi-degree-of-freedom change under the action of ocean load when berthing at a wharf, and the lifting method needs to select a window period with excellent weather conditions, so that the method is not practically applied. At present, the two methods cannot well complete the lifting and mounting work of the upper module of the FPSO.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a platform which can improve the installation efficiency, ensure the safety of the installation process, can be suitable for various installation environments, has strong bearing capacity, is convenient and reliable and is used for lifting and installing an upper module of an FPSO.

The utility model relates to a lifting platform for lifting and mounting an upper module of an FPSO (floating production storage and offloading) which comprises four tower column columns arranged on a lifting and mounting operation wharf along the vertical direction, wherein the four tower column columns are enclosed into a cuboid structure, a cross beam is respectively fixed between the top walls of two adjacent tower column columns along the horizontal direction, two ends of each cross beam are respectively welded and fixed with the top walls of the tower column columns, two ends of each cross beam are respectively provided with a through hole along the vertical direction, a tension oil cylinder is respectively arranged on the cross beam corresponding to each through hole, each tension oil cylinder is connected with a steel strand in a clamping way, the steel strand penetrates through the through holes on the cross beams along the vertical direction and is fixedly connected with a lifting bottom plate, the lifting bottom plate is arranged in the cuboid structure, and the four corners of the lifting bottom plate are provided with right-angle-shaped notches matched with the inner side shapes of the tower column columns, four right-angle shape notches of promotion bottom plate respectively with the cooperation of sliding from top to bottom of the inboard right angle corner of the pylon stand that corresponds position department the roof four corners department of promotion bottom plate install a jacking cylinder respectively, jacking cylinder's oil rod sets up the diapire that just is located the compensation bottom plate of cuboid structure in promotion bottom plate top and with one along the horizontal direction respectively and links to each other fixedly.

The utility model has the advantages that: the synchronous lifting work is carried out by using a plurality of tension oil cylinders, so that the bearing capacity of the lifting platform is ensured; the hydraulic lifting system has strong stability, the gravity center position of the upper module of the FPSO can be not considered, and the lifting speed can be ensured; the compensation structure formed by the four jacking oil cylinders can ensure the butt joint precision of the upper module of the FPSO and the FPSO deck as much as possible and enhance the environmental adaptability of the lifting platform; the tension oil cylinder and the jacking oil cylinder move independently, so that the anti-interference capability of the lifting platform is enhanced.

Drawings

FIG. 1 is a schematic structural view of a platform for lift installation of an upper module of an FPSO;

FIG. 2 is a schematic view of the lifting structure shown in FIG. 1;

FIG. 3 is a schematic view of the compensation configuration shown in FIG. 1;

fig. 4 is a schematic view of the cross beam structure shown in fig. 1.

Detailed Description

The utility model is described in detail below with reference to the drawings and specific examples.

The lifting platform for the lifting installation of the upper module of the FPSO comprises four tower columns 4 which are arranged on a lifting installation operation wharf along the vertical direction, wherein the four tower columns surround a cuboid structure. Two cross beams 2 are respectively fixed between the top walls of two adjacent tower upright columns 4 along the horizontal direction, two ends of each cross beam 2 are respectively welded and fixed with the top walls of the tower upright columns 4, and two ends of each cross beam 2 are respectively provided with a through hole 8 along the vertical direction. And a tension oil cylinder 1 is respectively arranged on the cross beam 2 corresponding to each through hole 8, each tension oil cylinder 1 is clamped and connected with the steel strand 3, and the tension oil cylinders 1 can be directly purchased. The steel strand 3 passes through the through hole 8 on the crossbeam 2 along the vertical direction and is fixedly connected with the lifting bottom plate 6, and the steel strand 3 and the lifting bottom plate 6 can be connected by welding. Promote bottom plate 6 setting in the cuboid structure and promote the four corners department of bottom plate 6 and have the right angle shape notch identical with the inboard shape of pylon stand 4, four right angle shape notches of promotion bottom plate 6 respectively with the cooperation of sliding from top to bottom of the inboard right angle corner department of the pylon stand 4 of corresponding position department.

Promote the roof four corners department of bottom plate 6 and install a jacking cylinder 7 respectively, jacking cylinder 7's beam rod sets up in 6 tops of promotion bottom plate and is located the diapire of compensation bottom plate 5 of cuboid structure fixedly continuous with one along the horizontal direction respectively for jack-up compensation bottom plate 5.

The working principle is as follows:

when the device is used, the steel strand 3 is placed down by the tension oil cylinder 1, so that the lifting bottom plate 6 is in contact with the bottom surface of the wharf, the jacking oil cylinder 7 is in a non-jacking state, and the upper module is transported to the compensation bottom plate 5. After the preparation work is finished, the eight tension cylinders 1 start to synchronously pull up the steel strands 3 to enable the lifting bottom plate 6 to keep a horizontal posture to move upwards, after the target height is reached, the tension cylinders 1 stop pulling up, the four jacking cylinders 7 start to asynchronously jack, the jacking height of each jacking cylinder 7 can be obtained by monitoring the pose change of the FPSO hull in actual operation, the top wall of the compensation bottom plate 5 and the top wall of the FPSO hull deck are located on the same plane, and then the existing sliding shipping equipment is utilized to transport the FPSO upper module to the FPSO hull deck to finish the shipping work of the upper module.

Claims

1. A lift platform that is used for FPSO upper portion module to promote installation which characterized in that: the lifting bottom plate is arranged in the cuboid structure, right-angle notches matched with the inner side shapes of the tower columns are arranged at four corners of the lifting bottom plate, the four right-angle notches of the lifting bottom plate can be respectively matched with the right-angle corners at the inner sides of the tower columns at corresponding positions in a vertically sliding mode, the four corners of the top wall of the lifting bottom plate are respectively provided with a jacking oil cylinder, and an oil rod of the jacking oil cylinder is respectively fixedly connected with a bottom wall of a compensation bottom plate which is arranged above the lifting bottom plate and is positioned in the cuboid structure along the horizontal direction.

2. A lifting platform for the lifting installation of an FPSO upper module according to claim 1 wherein: the steel strand and the lifting bottom plate are connected in a welding mode.