KR20160036171A

KR20160036171A - Module supporting unit

Info

Publication number: KR20160036171A
Application number: KR1020140127764A
Authority: KR
Inventors: 강경일
Original assignee: 삼성중공업 주식회사
Priority date: 2014-09-24
Filing date: 2014-09-24
Publication date: 2016-04-04

Abstract

A module supporting unit is disclosed. The module supporting unit comprises: multiple supports which are formed in the bottom side walls of legs for forming a structure arranged on the top area of an offshore floating body in a protruding shape, respectively; and a stool which has grooves where the legs having the supports are mounted. Therefore, the present invention facilitates the maintenance of an elastomeric bearing by fixing the legs to the stool using a bolting method instead of a welding method.

Description

[0001] MODULE SUPPORTING UNIT [0002]

The present invention relates to a module supporting unit.

Liquefied natural gas Liquefied natural gas (LNG FPSO, Liquefied Natural Gas Floating Production Storage and Offloading) is a type of maritime fluid that is used to produce natural gas by drilling the seabed while floating in the sea where the flow occurs, Gas is directly processed and liquefied at sea and stored in a liquefied natural gas storage tank.

For this purpose, as disclosed in Korean Patent Publication No. 2012-0020354 (floating structure), lifting modules for extracting crude oil from oil wells, purification modules and storage tanks, as well as residential modules and crude oil and gas being stored are discharged And a flare tower, which is a safety facility for incineration, are provided on the deck of the off-shore fluid.

The modules (i.e., the upper modules) are installed on a stool provided in the hull. Since a plurality of stools can flow in different directions due to the behavior of the hull by wind, waves, and algae, the upper module and each stool can flow relatively to each other to some extent. However, a special flexible They are interconnected using bearings (flexible bearings).

However, the flexible bearing formed of reinforced rubber is complicated to install, difficult to manufacture, and expensive to purchase. In addition, there is a problem that dimension control is difficult due to an error between a spring coefficient and a reation force of an elastomer.

In addition, when the upper module is supported by using the flexible bearing, the welding process is performed in order to restrict the movement in the Z-axis direction, so that the maintenance of the flexible bearing is not easy.

Patent Document 1: Korean Published Patent Application No. 2012-0020354 (floating structure)

The present invention minimizes the frequency of use of an expensive elastomeric bearing, which is a reinforced rubber material, and thus can reduce the installation cost. In addition, the present invention provides a stool and a leg So that the maintenance of the elastomer bearing can be facilitated.

The present invention is intended to provide a module supporting unit in which the upper module can be quickly and easily installed at a correct position and can be stably mounted on the stool by the weight of the upper module.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention there is provided a module supporting unit comprising: a plurality of supports formed in the shape of protrusions on each of the lower sidewalls of legs forming a structure disposed in an upper region of a marine fluid; There is provided a module supporting unit including a stool having grooves for seating the leg formed with the support.

Wherein a support guide having a forming angle parallel to a forming angle of a corresponding support is disposed at a corresponding position of each support so that the leg formed with the support is slid and seated by its own weight in the groove internal space of the stool, A bearing pad may be attached to the surface of the guide.

The tulle and the leg seated in the groove can be mutually fixed with bolts.

The support has at least one of a triangular shape and a parallelogram shape, and one of the longest sides can be attached to the lower sidewall of the leg to form the protrusion.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, the installation cost can be reduced by minimizing the frequency of use of expensive elastomeric bearings made of reinforced rubber, and the stool and the legs can be fixed to each other by a bolt type, It is possible to facilitate the maintenance.

Further, the upper module can be installed quickly and easily at the correct position, and the upper module can be stably mounted on the stool due to its own weight.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 schematically illustrates the optimized movement required in the design of a support structure for supporting an upper module.
Figure 2 illustrates a conventional fixed form using stools in each area of Figure 1;
3 is a view showing a configuration and an installation process of a conventional module supporting unit.
4 is a diagram illustrating a configuration and an installation process of a module supporting unit according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In addition, the terms "part," "unit," "module," "device," and the like described in the specification mean units for processing at least one function or operation, Lt; / RTI >

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic representation of the optimized movement required in the design of a support structure supporting an upper module. The large arrows shown in the figure represent the direction of the ship.

In general, a ship under sailing has six directions of motion, which are surging around the horizontal axis in the longitudinal direction of the hull, rolling around the horizontal axis in the longitudinal direction of the hull, (Swaying, swinging) of the hull along the horizontal axis, pitching (pitching) of the hull along the horizontal axis of the hull, heaving (heaving) in the direction of the vertical axis of the hull, It can be distinguished by yawing.

In order to minimize the influence of the stress variation and displacement of the module (i.e., the upper module) installed on the deck by the motion of the ship, the four-way support portion supporting the upper module has different movements .

For example, the area A in FIG. 1 may be designed to correspond to the movement of the ship in the longitudinal direction (i.e., a direction formed along an imaginary line connecting the fore and aft of the ship), and the area B may be designed to correspond to the longitudinal and lateral Can be designed to be constrained to the hull so that there is no movement against movement in the longitudinal direction (i.e., longitudinal transverse direction). Further, the C region in Fig. 1 can be designed to correspond to the lateral movement of the hull, and the D region can be designed to correspond to the longitudinal and lateral movement of the hull.

This design frees the upper deck module from displacement due to hull behavior and minimizes the stress fluctuations caused by moment transmission between the hull and the upper module.

FIG. 2 illustrates a conventional fixed form using a stool in a specific region of FIG. 1, and FIG. 3 illustrates a structure and an installation process of a conventional module supporting unit.

The module supporting unit 210 connecting the upper module and the stool of the conventional middle- and large-sized floating marine structure has a structure in which, as shown in FIGS. 2 and 3, in the contact area of the upper module and the stool 320 The bearing pads E1 and E2 are provided to allow longitudinal and lateral movement of the upper module.

As the bearing pads of the module supporting unit 210, an elastomeric bearing is mainly used. The elastomeric bearing is manufactured by alternately laminating an elastic body (elastomer) having a thickness of 0.7 to 2 mm and metal shims having almost the same thickness as each other, and as shown in FIG. 3, And the stool 320, respectively.

A first elastomer E1 is disposed in a space where the girder 310 forming the lower part of the upper module and the stool 320 vertically contact with each other, (See FIG. 3 (a) and FIG. 3 (b)) are respectively disposed on both side surfaces of the protruding portion 320 (that is, the region to be horizontally contacted).

3 shows a cross-sectional view of the stitching machine according to an embodiment of the present invention. In FIG. 3, only two second erasers E2 are shown. However, not only the left and right spaces of the stool 320, It is natural that the second elastomer (E2) may be further attached to the space.

After the upper module is seated on the stool 320, the girder 310 and one side of the stool 320 are welded together to prevent movement in the Z-axis direction (refer to 330 in FIG. 3 (c)).

Such a module supporting unit is difficult and expensive to manufacture an elastomeric bearing formed of reinforced rubber, and the girder 310 and the stool 320 are welded and fixed, which makes maintenance of the elastomer bearing difficult, There is a problem that it is not easy to work if it exists.

4 is a view illustrating a configuration and an installation process of a module supporting unit according to an embodiment of the present invention.

4, the module supporting unit 400 includes a support 410 protruding from a lower side of a leg 460 constituting an upper module, a leg 410 formed with a support 410, 460) at the lower portion thereof.

A support guide 430 having a shape corresponding to the shape of the support 410 is formed in the groove internal space of the stool 420 and a bearing pad 440 is attached to the surface of the support guide 430. The bearing pads 440 may be, for example, an elastomeric bearing.

The support 410 protruding from the lower side of the leg 460 may have one side such as a triangle, an isosceles triangle, a parallelogram, or the like, To form a protrusion having a predetermined inclination. 4 shows a sectional configuration of the module supporting unit 400 as a protrusion formed only on the right and left sides of the leg 460. The support 410 is formed on the front and rear sides of the leg 460, It is a matter of course that protrusions can be formed on each of the four regions of the lower region.

The support guide 430 is formed in the groove internal space of the stool 420 so that the support 410 conforms to the inclined angle formed by the protrusion and the bearing pad 440 is attached to the surface of the support guide 430, The support 410 slides down on the surface of the bearing pad 440 by the weight of the upper module (its own weight) when the leg 460 formed with the support 410 is seated in the inner groove of the stool 420 The end of the leg 460 is seated.

That is, the support 410 can be stably mounted on the support 410 by the mutually corresponding tilt angles when the upper module is mounted, and the X, Y, and / or Z The movement in the axial direction can be resiliently prevented. It is a matter of course that the support guide 430 and the bearing pad 440 are formed in the groove internal space of the stool 420 so as to correspond to the formation position of the support 410. At this time, since the number of the bearing pads 440 is required to be at most four, the number of the bearing pads required in the conventional module supporting unit, that is, the number of the restoring bearings, is reduced.

In order to prevent the upper module from rising along the angular surface formed by the support guide 430 when the acceleration 410 is generated in the Z axis direction after the support 410 is stably mounted by the support guide 430, (E.g., an anti-uplift bolt) may be coupled to secure the stool 420 and legs 460.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

210, 400: module supporting unit 310: girder
320, 420: stool 330: welded portion
410: Support 430: Support guide
440: Bearing pad 450: Bolt

Claims

As a module supporting unit,
A plurality of supports formed in the shape of protrusions on each of the lower sidewalls of the legs forming the structure disposed in the upper region of the floating body;
And a stool having grooves for seating the legs on which the support is formed.

The method according to claim 1,
In the groove internal space of the stool,
A support guide having a forming angle parallel to a forming angle of a corresponding support is disposed at a corresponding position of each support so that the leg formed with the support slides and is seated by its own weight,
And a bearing pad is attached to a surface of the support guide.

The method according to claim 1,
Wherein the tulle and the legs seated in the groove are mutually fixed with bolts.

The method according to claim 1,
Wherein the support has at least one of a triangular shape and a parallelogram shape and one longest side is attached to a lower sidewall of the leg to form the protrusion.