KR20160004355U

KR20160004355U - Cover flange used for setting pipe

Info

Publication number: KR20160004355U
Application number: KR2020150003768U
Authority: KR
Inventors: 박인규; 박성국; 장해기
Original assignee: 삼성중공업 주식회사
Priority date: 2015-06-11
Filing date: 2015-06-11
Publication date: 2016-12-21

Abstract

A cover flange for pipe installation is disclosed. According to an embodiment of the present invention, a pipe-mounting cover flange includes a cover coupled to an upper end of a pipe; And a lug which is formed to protrude from the upper end of the cover and has a fastening hole for fastening the fastening means of the lifting device for lifting up the pipe.

Description

{COVER FLANGE USED FOR SETTING PIPE}

The present invention relates to a cover flange for pipe installation.

The offshore production facilities installed on ships and offshore platforms are equipped with various pipes for oil well sampling, discharge of gravel and sand, and seawater (cooling water) inflow.

For example, in the case of a caisson pipe installed in FPSO (Floating, Production, Storage and Off-loading) or a cutting discharge pipe installed in a drill ship, ) To the bottom of the hull is installed vertically. At this time, the total length of the pipe is approximately 20 to 25 meters, and the weight is approximately 3 to 20 tons.

When these pipes are connected together in a single piece, the technical difficulties and workload are not only considerable, but also the pipe installation work can be very inefficient as the pipe height increases and the risk increases. Therefore, it is preferable to combine several pipes in advance into one assembly pipe, and install them in the hull.

However, it is very difficult to lift a heavy assembly pipe using a lifting device such as a crane, and lift the pipe to mount the pipe on the hull. In Korean Unexamined Utility Model Publication No. 20-2015-0000802 (published on Feb. 25, 2015), a method of fastening and fastening a fastening means directly to a bolting hole formed in a flange of a pipe has been proposed. However, It is not suitable for moving the pipe in the vertical direction.

Published Korean Utility Model No. 20-2015-0000802 (Published Feb. 25, 2015)

An embodiment of the present invention is intended to provide a pipe-mounting cover flange that enables a pipe to be easily raised and lifted to efficiently perform the pipe installation work.

According to one aspect of the present invention, a cover coupled to the top of the pipe; And a lug which is formed to protrude from the upper end of the cover and has a fastening hole for fastening the fastening means of the lifting device for lifting up and lifting the pipe.

The cover is coupled to a flange formed on the upper end of the pipe to cover an open portion of the upper portion of the pipe, a coupling hole corresponding to the bolt hole of the flange is formed at a peripheral portion, To the flange.

The lug is provided in a triangular shape, and the fastening hole can be formed at the center of the lug with reference to the center line of the lug.

A bracket may be formed on both sides of the lug to connect the lug and the top of the cover in a diagonal direction so as to correspond to a force acting on the lug when the pipe is lifted up in a vertical direction.

The lugs may be symmetrically formed in pairs at the top of the cover.

The cover flange for pipe installation according to the embodiment of the present invention allows the pipe to be easily raised and lifted, so that the pipe installation work can be efficiently performed.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

FIG. 1 is a cross-sectional view illustrating a configuration in which an assembly pipe is installed on a hull using a pipe-mounting cover flange according to an embodiment of the present invention.
FIG. 2 is a view showing a state where the pipes constituting the assembly pipe shown in FIG. 1 are disengaged.
Fig. 3 is a perspective view showing the shape of engagement between the cover flange and the pipe shown in Fig. 1. Fig.
Fig. 4 is a perspective view and a side view of the cover flange shown in Fig. 3;
Fig. 5 is a perspective view showing another example of the cover flange shown in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted in the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

Referring to FIG. 1, a pipe-mounting cover flange 100 according to an embodiment of the present invention may be usefully used when installing a large-sized pipe vertically. For example, the cover flange 100 may be used when installing the assembly pipe 200 vertically from the upper deck 2 to the ship bottom 4 of the ship.

A lifting device such as a crane is vertically lifted by placing a fastening means (for example, a key ring) on a fastening hole H2 of the cover flange 100 (see FIG. 3) . At this time, the lower pipe 211 may be installed in the ship bottom 4 before the assembly pipe 200 is installed, and the assembly pipe 200 may be installed in a dock where a crane can be used. The assembly pipe 200 is welded to the lower pipe 211.

After the installation work of the assembly pipe 200 is completed, the cover flange 100 can be disengaged from the assembly pipe 200 with the fastening means of the lifting device loosened.

The assembly pipe 200 may include, for example, a caisson pipe installed in FPSO (Floating, Production, Storage and Off-loading), a discharge pipe installed in a drill ship, etc. Hereinafter, a caisson pipe will be described as an example. Caisson pipes can be used for seawater inflow.

As shown in FIG. 2, the assembly pipe 200 may be in the form of a plurality of pipes 201 to 203 joined together by butt welding.

Although FIGS. 1 and 2 illustrate the assembly pipe 200 having three pipes 201 to 203 connected thereto for the sake of clarity, it is also possible to couple two or more pipes, have. At this time, the cover flange 100 is engaged with the flange F1 of the uppermost pipe 201 (hereinafter, referred to as "pipe 201").

3 and 4 (a) and 4 (b), a cover flange 100 is attached to a flange F1 formed on the upper end of the pipe 201, and covers the open portion of the upper portion of the pipe 201 And a lug 120 protruding from the upper end of the cover 110 and having a fastening hole H2 for fastening the fastening means of the lifting device. The lifting device may include, for example, a crane or the like, and the keyway of the crane may be fastened to the fastening hole H2 of the lug 120. [ The flange F1 formed on the upper end of the pipe 201 may be formed to protrude to the upper periphery of the pipe 201. [

The cover 110 can be coupled to the pipe 201 with the pipe 201 lying horizontally. The cover 110 is formed at the peripheral portion with a coupling hole H1 corresponding to the bolt hole B1 of the flange F1 formed at the upper end of the pipe 201, Is coupled to the flange (F1) of the pipe (201) by a coupling means coupled to the hole (B1). The engaging means may include a bolt 131 coupled to the bolt hole B1 and a nut 132 fitted to the bolt 131, and the like.

Thereafter, another pipe 202, 203 is further coupled to the pipe 201 to manufacture the assembly pipe 200 (see FIG. 1). The other pipes 202, 203 can be joined to the pipe 201 by butt welding, as described above in Fig.

As another example, an operation may be performed in which the cover 110 is installed on the pipe 201 while the assembly pipe 200 is first made and then placed horizontally. After the cover 110 is installed, the fastening means of the lifting device is fastened to the fastening hole H2 of the lug 120, and the assembly pipe 200 can be set up to be installed at the corresponding installation site of the hull as shown in Fig.

The lugs 120 may be provided in a triangular shape for balance and stability. The fastening hole H2 of the lug 120 may be formed at the center of the lug 120 with respect to the center line X of the lug 120. [

When the assembly pipe 200 is lifted up in the vertical direction, the lug 120 and the upper end of the cover 110 are fixed to both sides of the lug 120 in order to cope with a tensile force or the like acting on the lug 120 A bracket 125 for connecting in a diagonal direction may be formed.

Referring to FIG. 5, the lugs 120 may be disposed on both sides of the top of the cover 110 in a balanced manner. In this case, the fastening means of the lifting device is fastened to the fastening hole H2 of each lug 120, so that the assembly pipe 200 can be lifted in a vertical direction more stably.

Although a pair of lugs 120 are illustrated in FIG. 5, in another example, the lugs 120 may be provided in two or more pairs symmetrically to each other at the top of the cover 110.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and that various changes and modifications may be made without departing from the spirit of the technical idea set forth in the following claims It will be possible.

100: cover flange 110: cover
120: lug 125: bracket
200: Assembly pipes 201 to 203: Pipes
F1: Flange

Claims

A cover coupled to the top of the pipe; And
And a lug which is formed to protrude from the upper end of the cover and has a fastening hole for fastening the fastening means of the lifting device for lifting up and lifting the pipe.

The method according to claim 1,
Wherein the cover is coupled to a flange formed on the upper end of the pipe to cover an open portion of the upper portion of the pipe,
And a coupling hole corresponding to the bolt hole of the flange is formed at the peripheral portion and is coupled to the flange by coupling means coupled to the bolt hole through the coupling hole.

The method according to claim 1,
The lug is provided in a triangular shape,
Wherein the fastening hole is formed at the center of the lug with respect to a center line of the lug.

The method according to claim 1,
And a bracket for connecting the lug and the top of the cover in a diagonal direction is formed on both sides of the lug to correspond to a force acting on the lug when the pipe is lifted up in the vertical direction.

5. The method according to any one of claims 1 to 4,
Wherein the lug is symmetrically paired with the top of the cover.