KR102601318B1 - Rail cover for jack-up rig skidding system and offshore plant having the same - Google Patents

Abstract

The present invention relates to a rail cover for a jack-up rig skidding system that automatically covers and retrieves the rail when the drilling tower of the jack-up rig moves along the rail, preventing corrosion of the rail and increasing work convenience. A skid box supported and moved, a rolling part installed on a lower side of the skid box, a top cover installed on the rolling part and covered by the rail and recovered by being rolled or unwound by the rolling part as the skid box moves, It includes a side cover that is rotatably installed on the side of the top cover and covers the side of the rail.

Description

Rail cover of jack-up rig skidding system and offshore plant having it {RAIL COVER FOR JACK-UP RIG SKIDDING SYSTEM AND OFFSHORE PLANT HAVING THE SAME}

The present invention relates to a rail cover for a jack-up rig skidding system, and more specifically, to a rail cover that automatically covers and retrieves the rail when the drilling tower of the jack-up rig moves along the rail, preventing corrosion of the rail and increasing convenience of work. This is about the rail cover of the jack-up rig skidding system.

When it is desired to transport heavy loads on straight or arc-shaped supports, as described in U.S. Patent No. 3,486,737, such transport often involves skidding or skidding the load; securing the object to a specific target surface, etc. It refers to any operation of sliding and positioning while moving, and this is the same throughout the specification.

For example, when drilling a well from a platform in the ocean, it is common to skid the drilling rig on the platform from one well location to another.

This is typically done using a double acting hydraulic cylinder, skidding the drilling rig in a series of short steps where the pistons are retracted within the cylinder for the next stroke between steps. In the device according to US Pat. No. 3,486,737, the load (6) is slid along the support (3) by means of a horizontally extendable device (10), and after at least part of the load has passed the rollers, the friction shoe (20) The roller 18 is lifted upon operation of the device in one direction in order to transport it past the support.

In modern skidding systems, handling loads such as subsea modules or heavy structures (e.g. Christmas trees, process modules, jacket foundations, PLEMs) on open decks requires a high level of safety for both equipment and personnel. Safety is required.

Existing marine skidding systems typically have integrated rails or on-deck skid rails, push-pull, rack and pinion or carriage driven winches.

It is desirable that integration with other systems and layout be optimized for efficient deck logistics management. For each project, such as the jacket foundation installation project, it is necessary to develop and create a new skidding carriage that supports the load on the ship's skidding rails.

The conventional cantilever skidding rail consists of an A pinhole that allows the installed skid pin to enter is being applied. Cantilevers are heavy objects, so grease is applied to the rail for skidding, and for smooth skidding operation, the rail surface must be machined to maintain the required surface roughness.

Compared to the Y-rail, the Without protection, there was a problem of rapid corrosion and oxidation of the rail surface.

Conventionally, tarpaulin covers, steel covers, etc. are applied to the rail surface to prevent corrosion of the rail surface.

When using the above tarpaulin cover to cover the rail, a large number of people are required for installation and durability is poor, and when using a steel cover, the plated surface is damaged during frequent installation/disassembly in terms of corrosion resistance. There was a problem in that this was damaged and corrosion was accelerated.

US Patent No. 3,033,525 Republic of Korea Patent Publication No. 10-2015-0138256

Therefore, the present invention was devised to solve the above-mentioned problems, and its purpose is to ensure corrosion resistance by automatically covering the rail and rolling it to be recovered when the drilling tower of the jack-up rig moves along the rail. We provide a rail cover for the jack-up rig skidding system that is excellent and does not require workers to install the rail cover, making it convenient to work and reducing costs due to loss of materials by eliminating the need for fixing materials generated during installation/disassembly.

The rail cover of the jack-up rig skidding system according to an embodiment of the present invention for achieving the above object includes a skid box that is supported and moved on the rails of the deck, a rolling part installed on the lower side of the skid box, and the rolling It may include a top cover that is installed on the top cover and is recovered and covers the rail by rolling or unwinding as a rolling part as the skid box moves, and a side cover that is rotatably installed on the side of the top cover and covers the side of the rail. .

The rolling part includes a roller support connected to the skid box with bolts, a cover roller installed on the roller support to roll the top cover and side cover, and a spring gear box installed inside the cover roller to elastically support the top cover. may include.

It may further include lifting bars installed on both sides of the upper part of the roller support to lift the side cover so that the side cover can be easily wrapped around the cover roller.

The top cover may be installed in the form of a shutter so that it can be wound or unwound from the rolling unit as the rolling unit rotates.

The top cover is provided with a first cover plate made of SUS material at the top, and a first isolation pad is attached to the lower part of the first cover plate to prevent dissimilar metal contact corrosion due to contact of dissimilar materials with the rail. It can be.

A clamp may be installed at the end of the top cover so as to hang on the end of the rail and hold the top cover.

The side cover may be connected to the side of the top cover with a hinge so that it can be rotated when rolled or unwound with a rolling portion.

The side cover is equipped with a second cover plate made of SUS material at the top, and a second isolation pad is attached to the lower part of the second cover plate to prevent contact corrosion of different metals due to contact of different materials with the rail. It can be.

According to another aspect of the present invention, a skid box is supported on a rail installed on the deck, a rolling part is fixed to the side of the skid box, and a top cover is installed at the rolling part and the end of the rail with a side cover connected by a hinge. As the rolling part rotates, the top cover and side cover are wound or unwound from the rolling part, automatically covering and recovering the rail, preventing corrosion of the rail and making work more convenient as no workers are needed to install the rail cover. We provide an offshore plant with a rail cover for the jack-up rig skidding system to increase the

According to the rail cover of the jack-up rig skidding system according to the present invention, a rolling part is installed on the side of the skid box supported on the rail, and a top cover and side cover made of SUS material are installed to cover the rail on the rolling part, thereby protecting the rolling part. As the top cover and side cover rotate, the rolling part is wound or unwound, so when the drilling tower of the jack-up rig moves along the rail, the top cover and side cover can automatically cover and recover the rail, improving corrosion resistance and adhesion to the rail. can be maximized, and there is no need for workers or fixing materials to install the rail cover, which has the effect of reducing work convenience and cost.

Figure 1 is a front view showing the installed state of the rail cover of the jack-up rig skidding system according to the present invention.
Figure 2 is a front view showing a partially enlarged state of the rail cover of the jack-up rig skidding system according to the present invention.
Figure 3 is a front view showing the rail cover of the jack-up rig skidding system according to the present invention.
Figure 4 is a front view showing another example of the rail cover of the jack-up rig skidding system according to the present invention.
Figure 5 is a plan view showing the installed state of the rail cover of the jack-up rig skidding system according to the present invention.
Figure 6 is an enlarged plan view of part "A" according to Figure 5.
Figure 7 is a cross-sectional view of "BB" according to Figure 6.
Figure 8 is a cross-sectional view of "CC" according to Figure 6.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In the drawings, embodiments of the present invention are not limited to the specific form shown and are exaggerated for clarity. Although specific terms are used in this specification, they are used for the purpose of explaining the present invention, and are not used to limit the meaning or scope of rights of the present invention described in the patent claims.

In this specification, the expression 'and/or' is used to mean including at least one of the components listed before and after. Additionally, the expression 'connected/coupled' is used to include being directly connected to another component or indirectly connected through another component. In this specification, singular forms also include plural forms unless specifically stated in the phrase. Additionally, elements, steps, operations and elements referred to as 'comprise' or 'comprising' as used in the specification mean the presence or addition of one or more other components, steps, operations and elements.

Additionally, expressions such as 'first, second', etc. are expressions used only to distinguish a plurality of components and do not limit the order or other characteristics between the components.

In the description of the embodiments, each layer (film), region, pattern or structure is “on” or “under” the substrate, each side (film), region, pad or pattern. The description of being formed in "includes being formed directly or through another layer. The standards for top/top or bottom/bottom of each floor are explained based on the drawing.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a front view showing the installed state of the rail cover of the jack-up rig skidding system according to the present invention, Figure 2 is a front view showing a partially enlarged state of the rail cover of the jack-up rig skidding system according to the present invention, and Figure 3 is a front view showing a rail cover of the jack-up rig skidding system according to the present invention, Figure 4 is a front view showing another example of a rail cover of the jack-up rig skidding system according to the present invention, and Figure 5 is a jack-up rig skidding system according to the present invention. It is a plan view showing the installed state of the rail cover of the rig skidding system, FIG. 6 is an enlarged plan view of part “A” according to FIG. 5, FIG. 7 is a cross-sectional view of “B-B” according to FIG. 6, and FIG. 8 is a It is a sectional view of “C-C” according to 6.

As shown in Figures 1 to 8, the rail cover of the jack-up rig skidding system according to the present invention includes a skid box 200, a rolling part 300, a top cover 400, and a side cover 500. It will be included.

The skid box 200 is seated on the rail 110 installed on the upper part of the deck 100 to transport the drilling tower of the jack-up rig and is moved along the rail 110.

That is, the skid box 200 is supported on the rail 110 and is moved forward, backward, and left and right along the rail 110 when skidding the drilling tower.

The rolling part 300 is installed on the lower side of the skid box 200 and can roll or unwind the top cover 400 as the skid box 200 moves.

As shown in Figures 2 and 3, the rolling part 300 includes a roller support 310, a cover roller 320, and a spring gear box 330.

The roller support 310 is connected to the lower side of the skid box 200 with a bolt 350.

Additionally, the roller support 310 may be fixed to the skid box 200 by welding.

As shown in Figure 4, on both sides of the upper part of the roller support 310, when the skid box 200 moves along the rail 110, the side cover 500, which is wound around the rolling part 300, is lifted and the rolling part ( A lifting bar 340 is installed on 300 so that the side cover 500 can be easily wound.

Accordingly, when the top cover 400 is wound around the rolling part 300 as the skid box 200 moves, the lifting bar 340 is connected to the side of the top cover 400 and moves to the lower side of the top cover 400. The side cover 500 can be lifted to be positioned in a parallel line with the sagging top cover 400, so that the side cover 500 along with the top cover 400 can be smoothly wrapped around the rolling part 300.

The cover roller 320 is installed outside the roller support 310 and rolls the top cover 400 and the side cover 500 so that they can be wound or unwound as the skid box 200 moves.

That is, when the cover roller 320 is installed on the roller support 310 and the skid box 200 moves along the rail 110, the top cover 400 and the side cover 500 to cover the rail 110. It is wound or unwound inside the cover roller 320.

The spring gear box 330 is installed inside the cover roller 320 and elastically supports the top cover 400, so that the top cover 400 is attached to the cover roller 320 as the skid box 200 moves. This is to make it easy to wind.

In this way, when the top cover 400 is wound around the cover roller 320, it can be wound tightly and firmly by the spring gear box 330.

As shown in Figures 2 and 3, the top cover 400 is installed on the rolling part 300, and when the skid box 200 moves along the rail 110, it is wound or unwound by the rolling part 300 to roll the rail ( 110) The upper part can be covered and retrieved.

In addition, as shown in FIG. 6, the top cover 400 is preferably installed in the form of a shutter so that it can be wound or unwound from the rolling part 300 as the skid box 200 moves.

That is, by installing the top cover 400 in the form of a shutter, the top cover 400 can be smoothly wound around the cover roller 320.

As shown in FIG. 7, the top cover 400 is provided with a first cover plate 410 at the top, and a different material is formed at the lower part of the first cover plate 410 due to contact of different materials with the rail 110. A first isolation pad 420 is installed to prevent metal contact corrosion.

The first cover plate 410 is made of SUS material with excellent corrosion resistance.

The first isolation pad 420 is attached to the first cover plate 410 with adhesive.

As shown in FIGS. 6 and 8, a clamp 430 is installed at the end of the top cover 400 so as to hang on the end of the rail 110 and hold the top cover 400.

At this time, the clamp 430 is provided in the form of a hook so that it can be hung on the end of the rail 110.

As shown in Figures 2 and 3, the side cover 500 is installed on the side of the top cover 400 to cover the side of the rail 110.

As shown in Figures 7 and 8, the side cover 500 is connected to the side of the top cover 400 with a hinge (h) and can be rotated on the side of the top cover 400.

That is, when the top cover 400 is wound around the cover roller 320 as the skid box 200 moves, the side cover 500 can be rotated by the hinge h, so that the side cover 500 is lifted. As it is positioned in parallel with the top cover 400, the side cover 500 along with the top cover 400 can be easily wound around the cover roller 320.

Meanwhile, when the top cover 400 is released from the cover roller 320 as the skid box 200 moves, the side cover 500 can rotate by the hinge (h), so that the side cover 500 is moved by gravity. is placed on the lower side of the top cover 400, allowing it to cover the side part of the rail 110.

As shown in FIG. 7, the side cover 500 is provided with a second cover plate 510 at the top, and a different material is formed at the lower part of the second cover plate 510 due to contact with the rail 110. A second isolation pad 520 is installed to prevent metal contact corrosion.

The second cover plate 510 is made of SUS material with excellent corrosion resistance.

The second isolation pad 520 is attached to the second cover plate 510 with adhesive.

According to another aspect of the present invention, a skid box 200 is installed for skidding of the drilling tower on the rail 110 installed on the deck 100, and at the lower side of the skid box 200. A rolling part 300 is installed, and a top cover 400 made of SUS and a rotatable side cover 500 are installed on the side of the top cover 400 to move the skid box 200. Accordingly, the top cover 400 and side cover 500 can automatically cover and recover the rail 110 as it is wound or unwound from the rolling part 300, preventing corrosion resistance and minimizing the number of installation personnel, making work easier. It is applied to offshore plants that have a rail cover for the jack-up rig skidding system for convenient operation.

That is, the skid box 200 is installed on the rail 110, the roller support 310 is installed on the lower side of the skid box 200, and the top cover 400 and the side cover 500 are installed on the roller support 310. ) A cover roller (320) and a spring gear box (330) are installed to wind or unwind the top cover (400), and the side cover (500) is connected to the cover roller (320) with a hinge (h) so that it can be rotated. When the skid box 200 moves along the rail 110 to skid the drilling tower, the top cover 400 and the side cover 500 are wound or unwound from the cover roller 320, thereby forming the top cover 400. As the side cover 500 easily covers the rail 110, it can be applied to all offshore plants to increase the convenience of installation work and the durability of the rail cover.

Looking at the operating status according to the rail cover of the jack-up rig skidding system of the present invention as described above, the following is provided.

A rail 110 is installed on the deck 100 for skidding, and a skid box 200 is installed on the rail 110. At this time, a rolling part 300 is installed on the lower side of the skid box 200. It is connected and the top cover 400 and the side cover 500 are installed on the rolling part 300, so that the top cover 400 and the side cover 500 are connected to the rolling part 300 as the skid box 200 moves. By winding or unwinding, the rail 110 can be covered and recovered.

In addition, a roller support 310 is connected to the lower side of the skid box 200, and a cover roller 320 is installed on the roller support 310 to roll and unwind the top cover 400 and the side cover 500. When the skid box 200 moves along the rail 110, the top cover 400 is wound or unwound around the cover roller 320.

In this way, as the rolling part 300 is fixed to the skid box 200, the rolling part 300 follows the skid box 200 and is connected to the cover roller 320 as the skid box 200 moves. The top cover 400 and side cover 500 are released from the cover roller 320, cover the rail 110, and are recovered while being wound around the cover roller 320.

At this time, as the clamp 430 is installed at the end of the top cover 400, the clamp 430 is caught on the rail 110, so that when the top cover 400 is wound or unwound from the cover roller 320, the top cover 400 ) can be held, allowing the top cover 400 to stably cover the rail 110.

Additionally, when the top cover 400 is wound around the cover roller 320, the spring gear box 330 allows the top cover 400 to be stably wound around the cover roller 320.

In addition, the side cover 500 is connected to the side of the top cover 400 with a hinge (h), allowing the side cover 500 to rotate up and down from the top cover 400, so that the top cover (500) is attached to the cover roller 320. When 400) is wound, the side cover 500 is lifted parallel to the top cover 400 and is stably wound around the cover roller 320.

At the same time, when the top cover 400 is released from the cover roller 320, the side cover 500 can be rotated by the hinge h, so that the side cover 500 falls downward due to gravity and falls on the rail 110. can cover the sides.

In addition, the top cover 400 and the side cover 500 are made of SUS material with high corrosion resistance, thereby preventing corrosion.

Therefore, the rolling part 300 is connected to the lower side of the skid box 200, and a top cover 400 and a side cover 500 capable of covering the rail 110 are installed on the rolling part 300 to form a skid box. As 200 moves, the top cover 400 and side cover 500 are automatically wound or unwound from the rolling part 300, making it possible to easily cover the rail 110 without additional workers.

As described above, the present invention is not limited to the specific preferred embodiments described above, and various modifications may be made by anyone skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, implementation is possible, and such changes fall within the scope of the claims.

100: deck 110: rail
200: Skid box 300: Rolling unit
310: roller support 320: cover roller
330: Spring gear box 340: Lifting bar
350: Bolt 400: Top cover
410: first cover plate 420: first isolation pad
430: Clamp 500: Side cover
510: second cover plate 520: second isolation pad

Claims (9)

A skid box supported on deck rails and moved along the rails;
A rolling part installed on a lower side of the skid box;
A top cover installed on the rolling unit and covered by the rail and recovered as it is wound or unwound by the rolling unit as the skid box moves; and
A side cover rotatably installed on the side of the top cover to cover the side of the rail;
Including,
The rolling unit includes a roller support connected to the skid box with bolts; a cover roller installed on the roller support to roll the top cover and side cover; and a spring gear box installed inside the cover roller to elastically support the top cover. Includes,
The rail cover of the jack-up rig skidding system further includes lifting bars installed on both sides of the upper part of the roller support to lift the side cover and allow the side cover to be easily wrapped around the cover roller. delete delete delete delete delete delete delete An offshore plant having a rail cover of a jack-up rig skidding system, characterized in that the rail cover of the jack-up rig skidding system according to claim 1 is installed.

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