CN215811529U

CN215811529U - Inner rotating tower device suitable for FPSO pool model test

Info

Publication number: CN215811529U
Application number: CN202122267769.8U
Authority: CN
Inventors: 刘利琴; 陈建峰; 李焱; 郭颖; 刘亚柳
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-11
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses an inner rotating tower device suitable for FPSO pool model tests, which comprises an upper fixed plate, a lower fixed plate and a connecting rod, wherein the upper fixed plate is hermetically arranged on a deck of a model hull, the lower fixed plate is hermetically arranged on the lower surface of a bottom plate of the model hull, the connecting rod vertically penetrates through the model hull, the upper fixed plate and the lower fixed plate, the upper end of the connecting rod is hermetically fixed on the upper fixed plate, the lower end of the connecting rod is positioned outside the bottom plate of the model hull, the lower end of the connecting rod is connected with a rotary table, a plurality of hanging rings are fixedly connected on the rotary table, a pressing plate sleeved on the connecting rod is fixed on the lower fixed plate, and the pressing plate is hermetically connected with the lower fixed plate and the connecting rod respectively. The utility model can effectively limit all other motions of the FPSO model outside plane rotation, accurately simulate the motion and stress of the FPSO model in a single-point mooring state, realize the single-point mooring function of the inner turret device in the FPSO pool model test, and has the advantages of low cost and convenient installation.

Description

Inner rotating tower device suitable for FPSO pool model test

Technical Field

The utility model relates to the technical field of ocean and ship engineering pool tests, in particular to an inner tower rotating device suitable for FPSO pool model tests.

Background

In recent years, floating platforms suitable for deep sea oil and gas development have become the focus of attention of various national scholars and engineers. Floating Production Storage and Offloading unit (FPSO) has a wide application prospect in China as a Floating platform with good economy. According to different sea conditions in different sea areas, mooring systems mainly adopted by the FPSO include the following three types: single point mooring systems, multi-point mooring systems, and dynamic positioning systems. The single point mooring system is most commonly used because it can resist severe and extreme environmental conditions and has a weathervane effect. The basic principle is that the ocean engineering structure is tied and fixed on the sea through a mooring point capable of rotating 360 degrees, and the structure can conform to the position with the minimum environmental force due to the weathervane effect; while rotating, the medium can be transferred between a static structure and a dynamic structure.

The internal turret single point mooring system is one of the three core components of an offshore FPSO system, with the investment (design, manufacture and offshore installation) accounting for about 1/3 of the overall FPSO system. In order to ensure that the FPSO can be used for production operation on the sea for a long time, a newly designed FPSO generally needs to be subjected to special pool model test research, and the motion and the stress of a model are measured in the test, so that the motion and the stress of an FPSO entity under the marine environment condition are predicted, and a scientific basis is provided for the design, the construction and the safe production operation of the FPSO. The inner tower type and structure of the FPSO system applied in practical engineering are very complex, and the cost for processing the precise model is very high. In order to effectively limit all other motions of the FPSO model outside the plane rotation and accurately simulate the motion and stress of the FPSO model in a single-point mooring state, an inner tower rotation device which has relatively low processing cost and convenient installation and can be suitable for FPSO pool model tests needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inner tower device suitable for FPSO pool model test, which can effectively limit other motions of the FPSO model outside plane rotation, accurately simulate the motion and stress of the FPSO model in a single-point mooring state, and has the advantages of low cost and convenient installation.

The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: the utility model provides an interior tower device suitable for FPSO pond model test, is including sealed set up at model hull on-board fixed plate, sealed bottom plate and the perpendicular model hull that runs through that sets up on model hull bottom plate lower surface the fixed plate with the connecting rod of bottom plate, the upper end of connecting rod is sealed to be fixed on the fixed plate, the lower tip of connecting rod is located outside the model hull bottom plate the lower tip of connecting rod is connected with the carousel the rigid coupling has a plurality of links on the carousel be fixed with the suit on the bottom plate the clamp plate on the connecting rod, the clamp plate with the bottom plate with connecting rod difference sealing connection.

The connecting rod is made of steel pipes.

The upper fixing plate, the lower fixing plate, the pressing plate and the rotary table are all made of aluminum plates.

The upper end of the connecting rod is hermetically fixed on the upper fixing plate by adopting a nut.

The utility model has the advantages and positive effects that: hang the carousel under the connecting rod through the model hull of adopting, set up the link on the carousel as the tie point of mooring, can effectively restrict other all movements of FPSO model outside the plane rotation, motion and atress of accurate simulation FPSO model under the single point mooring state have realized the single point mooring function of inner tower device among the FPSO pond model test to the cost is lower, simple to operate. The connecting rod adopts the steel pipe preparation, can guarantee structural rigidity well, and upper fixed plate, bottom plate, clamp plate and carousel adopt the aluminum plate preparation, have alleviateed the overall mass of adversion tower device, improve the flexibility of FPSO model. The FPSO pool model test device is simple in structure, simple and convenient to process and manufacture, convenient and fast to maintain, and capable of effectively saving manpower, material resources and financial resources in the FPSO pool model test process.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an upper fixing plate; 2. a nut; 3. a connecting rod; 4. a model hull; 5. a lower fixing plate; 6. pressing a plate; 7. a turntable; 8. hanging a ring; 9. and a nut.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

the utility model provides an interior tower device suitable for FPSO pond model test, is including sealed 1, the sealed bottom plate 5 that sets up on model hull deck of upper fixed plate, on the model hull bottom plate lower surface of setting and run through the model hull 4 perpendicularly upper fixed plate 1 with connecting rod 3 of bottom plate 6, the upper end of connecting rod 3 is sealed to be fixed on upper fixed plate 1, the lower tip of connecting rod 3 is located outside the model hull bottom plate the lower tip of connecting rod 3 is connected with carousel 7 the rigid coupling has a plurality of links 8 on the carousel 7 be fixed with the suit on the bottom plate 1 clamp plate 6 on the connecting rod 3, clamp plate 6 with bottom plate 5 with connecting rod 3 is sealing connection respectively.

In this embodiment, the connecting rod 3 is made of steel pipe, so that the device has better rigidity. The upper fixing plate 1, the lower fixing plate 5, the pressing plate 6 and the rotary table 7 are all made of aluminum plates, the weight is light, and the flexibility of the model can be improved. The upper end of the connecting rod 3 is hermetically fixed on the upper fixing plate 1 by adopting a nut 2; the lower terminal surface of carousel 7 adopts two nuts 9 to carry on spacingly, and the up end adopts the step face to carry on spacingly, simple structure, simple to operate.

When the mooring device is used, the steel wire rope is connected with the balancing weight on the hanging ring 8, and the single-point mooring of the FPSO model hull 4 is realized.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides an interior tower device suitable for FPSO pond model test, a serial communication port, including sealed set up at model hull on-board fixed plate, the sealed bottom plate that sets up on model hull bottom plate lower surface and run through the model hull perpendicularly the fixed plate with the connecting rod of bottom plate, the upper end of connecting rod is sealed to be fixed on the fixed plate, the lower tip of connecting rod is located outside the model hull bottom plate the lower tip of connecting rod is connected with the carousel the rigid coupling has a plurality of links on the carousel be fixed with the suit on the bottom plate the clamp plate on the connecting rod, the clamp plate with the bottom plate with connecting rod sealing connection respectively.

2. The inner tower apparatus suitable for the FPSO pool model test as claimed in claim 1, wherein the connecting rod is made of a steel pipe.

3. The inner tower apparatus suitable for the FPSO pool model test as claimed in claim 1, wherein the upper fixing plate, the lower fixing plate, the pressing plate and the turntable are made of aluminum plate.

4. The inner tower apparatus suitable for the FPSO pool model test as claimed in claim 1, wherein the upper end of the connecting rod is sealingly fixed to the upper fixing plate by a nut.