KR101346256B1 - Support apparatus for a skid way system - Google Patents

Abstract

A guide block formed on the support of the lower concrete block so as to distribute the load of the skid system, and a closed channel formed between the guide block. A support apparatus for a sliding launch system comprising an expandable liquid filled in the hermetic canal and cooling means for cooling the liquid. In the sliding of the skid system according to an embodiment of the present invention, the liquid filled in the sealed channel is frozen by operating the cooling means to expand its volume, and the upper surface of the ice protrudes over the guide block to reduce the sliding frictional resistance of the skid system. Has the effect of

Description

Support device for sliding launch system {SUPPORT APPARATUS FOR A SKID WAY SYSTEM}

The present invention relates to a support device for a sliding launch system.

In general, shipyards are making ships in docks as the ships grow in size.

By the way, in Korea, we built a huge ship of more than 100,000 tons in October 2004 and succeeded in launching it for the first time in the world. This is because we have a lot of orders, and it takes too much money and time to build a dock. It is a new way.

In this land-drying method, a block made in various places in a shipyard is assembled into a single place on the land, and then the completed vessel is a floating dock using a skid rail (a device in which a vehicle moves when moving from land to sea). Floating docks are used to move ships, and returning from the ground to the sea is called 'load-out'.

Because loadout is so heavy, the technology is to control and maintain in real time the fine movements and balances of floating docks connected to land.

The ship moved to the floating dock, dragging the floating dock offshore with a tug, and submerging the floating dock offshore. The buoyancy of the completed vessel is used for natural flotation, then the vessel is moved and the semi-submersible floating dock drains the water from the ballast tank and floats it to its original state. This is called a 'base'. The key to the launch is the technology to control and control the semi-submersible in real time according to the sea and weather conditions.

The biggest advantage of the above-mentioned land drying method is that the production capacity of the ship that can be limitedly dried in the dry dock is greatly increased, which is technically 'accessible to equipment and personnel', that is, accessibility You can count.

On the other hand, when using the existing dry dock must go through the process of mounting. In order to mount, the Goliath crane must be used and the number of blocks is determined according to the capacity of the Goliath crane. However, in recent years, the land construction can move the blocks from hundreds to thousands of tons using new transportation equipment such as transporter and modular in addition to the Goliath crane. As a result, large blocks can be constructed that go beyond the capabilities of the Goliath crane.

Landbuilding requires several methods for moving ships built on land to sea.

One such method is the 'Slip Way' method. This method has the advantage that the ship can slide in the longitudinal or transverse direction through the slope to the sea level and then float to the sea.The advantage is that it can move in a short distance and in a short time, but the preparation time is not different from any other method. Ships do not use this method. Because of stability issues, everyone uses relatively stable hex or interdigital numbers.

Another method is to use a floating dock. It's time-consuming, but stable and efficient, and the most important thing is safety. The skid rail is fixed in one direction so you can move it any time you want.

 The load-out facility used in the above land drying method has been disclosed a number of patent documents as the prior art that is the background of the invention.

However, in order to move a ship constructed by the land drying method to the sea, a loadout rail is installed from the dry position of the onboard ship to the floating dock position by using a loadout facility installed on the loadout rail. It is common to transfer to a floating dock.

That is, a large offshore structure is manufactured on land and then transferred from a quay to a heavy lifter. At this time, a structure for sliding a skid system is temporarily installed. Since it takes a long time, there is a request for a solution.

(Patent Document 1) Korean Patent Registration No. 10-1134548 (2012.4.13 announcement)

(Patent Document 2) Korean Patent Publication No. 10-2010-0020801 (published Feb. 2010)

(Patent Document 3) Korean Registered Patent No. 10-0950556 (announced on March 30, 2010)

(Patent Document 4) Korean Registered Patent No. 10-0958896 (announced on May 2, 2010)

(Patent Document 5) Korean Registered Patent No. 10-0929507 (announced on November 25, 2009)

Embodiment of the present invention is to change the support of the lower concrete block on the foundation, which is a structure for sliding of the skid system to be moved in the form of a two-stage support to form a hermetic channel between them, and the fluid contained in the channel selectively As the ice expands in volume than when it is cooled and liquid, a sliding launch system in which the lifting effect and low coefficient of friction can be obtained when sliding the structure for the skid system is in close contact with the support of the lower concrete block. To provide a support device for the.

The support device for a sliding launch system according to an aspect of the present invention is a guide block formed on the support of the lower concrete block to distribute the load of the skid system, and formed between the guide block, the closed waterway containing the fluid therein and . And cooling means for selectively cooling the fluid to create a bulge that is more bulky than in a liquid state, wherein the closed channel may protrude above the guide block during sliding of the skid system, It is positioned to reduce the sliding frictional resistance.

The support device for sliding launch system according to an aspect of the present invention is a guide block formed on the support of the lower concrete block so as to distribute the load of the skid system, and a closed channel formed between the guide block. An electromagnet installed to cover the sealing channel, an expandable liquid filled in or below the electromagnet, and cooling means for cooling the liquid, wherein the cooling means operates the sliding means when sliding the skid system. Liquid filled in the channel freezes and expands in volume, and the face of the electromagnet protrudes above the guide block to reduce the sliding frictional resistance of the skid system.

It may further include an electromagnet installed in the skid system to correspond to the electromagnet installed to cover the hermetic channel, the electromagnet of the skid system and the electromagnet of the skid system may have different polarities.

When the skid system is positioned on top of the guide block, the polarity of the electromagnet of the skid system and the electromagnet on the hermetic channel can be controlled to be equal to each other.

The polarity control of the electromagnet and the polarity control of the cooling means can be controlled at the same time.

According to an embodiment of the present invention, as the liquid filled in the closed channel formed between the two stage supports of the lower concrete block expands during the sliding of the skid system, the lifting effect and the low friction rising in close contact with the support of the lower concrete block are increased. Since the coefficient is obtained, it is not necessary to use an expensive Teflon Skidding Plate, which has been conventionally installed on the support object, and does not need to apply grease, which is an environmental pollutant.

Embodiments of the present invention also have the effect of using a relatively low volume position when pushing or pulling the skid system, instead of using a large capacity hydraulic winch.

1 is a schematic diagram showing a general sliding decimal number,
FIG. 2 is a schematic cross-sectional view showing the configuration of an exemplary support structure for sliding the skid system of FIG. 1;
Figure 3 is a schematic cross-sectional view showing a support device for a sliding launch system according to an embodiment of the present invention,
4 is a schematic cross-sectional view showing an expanded state of liquid filled in a channel in the support structure device of FIG. 3;
Figure 5 is a schematic cross-sectional view showing a support device for a sliding launch system according to another embodiment of the present invention,
6 is a schematic plan view showing the operation of the sliding launch system by the support device of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 shows a general sliding essence.

As shown in FIG. 1, a sliding structure 4 for sliding the skid system 3 is installed between the quay wall 1 and the floating dock 2 in order to move a ship constructed in a land-drying manner to the sea. And using a large hydraulic winch (not shown), the skid system 3 is pushed on the sliding structure 4 to load out a vessel (not shown), which is a large offshore structure seated on the skid system 3. .

As shown in FIG. 2, the sliding structure 4 generally forms a lower concrete block 12 on the foundation 10, but protrudes the support 14 at the center thereof, thereby providing a skid system 3 on the support 14. The skid system 3 is slid by positioning a skid beam 16 of the < RTI ID = 0.0 >

At this time, in order to reduce the frictional resistance of the skid system 3, a skid plate 20 made of Teflon is installed between the support 14 and the skid beam 16, and grease is applied to the skid plate 20. Doing. By the way, since the skid plate 20 is expensive, it takes a lot of installation cost, and also cost and time due to the application of grease, there is a problem that the applied grease causes environmental pollution.

Figure 3 shows a support device for a sliding launch system according to an embodiment of the present invention.

As shown in FIG. 3, the support device 50 for the sliding launch system according to the embodiment of the present invention may have guide blocks on both sides of the support 52 of the lower concrete block 12 formed on the foundation 10. (54) is formed to distribute the load of the skid system (3), and the guide block (54) is formed as a sealed channel (60).

The sealed channel 60 may be provided with cooling means 64 for filling the expandable liquid 62 by cooling and for cooling the expandable liquid 62. In the figure, reference numeral 66 denotes a cooling coil of the cooling means 64.

As the expandable liquid 62, in this embodiment, a mixture of water and a mixture of water may be used. Although the hermetic channel 60 is formed between the guide blocks 54, otherwise, a groove may be dug in the center of the support 52, and this may be formed as the hermetic channel 60, which will be described as a specific embodiment. Omit.

When the skid system 3 is positioned above the guide block 54 to load out by this configuration, the cooling means 64 is operated to expand the expandable liquid 62, ie, water, filled in the closed channel 60. As the ice cools, the volume expands, and as shown in FIG. 4, the upper surface of the ice protrudes convexly to the top of the guide block 54, thus the skid beam 16 of the skid system 3. ) And a gap t is formed between the guide block 54.

When the skid system 3 slides on the guide block 54 in this state, the frictional resistance is reduced, so that the skid system 3 can be slid even with a low capacity hydraulic winch.

FIG. 5 illustrates a support structure apparatus of the sliding launch system according to another embodiment of the present invention, and FIG. 6 illustrates an operation of the sliding launch system by the support structure apparatus of FIG. 5.

5 and 6, the support device 80 of the sliding launch system according to another embodiment of the present invention, the electromagnet 90 is installed in the hermetic channel 60, the skid of the skid system 3 3 is the same as that of the embodiment except that the electromagnet 92 is added to the beam 16, the configuration of the electromagnets 90 and 92 and the operation thereof will be described only for convenience of description.

The electromagnet 90 is installed to cover the hermetic channel 60 as shown in FIG. 5, and fills the expandable liquid 62 by cooling inside or under the electromagnet 90, and the expandable liquid ( Cooling means 64 for cooling 62 can be provided. Accordingly, the volume of the electromagnet 90 may protrude to the upper portion of the guide block 64 while the water is cooled by ice.

In addition, as shown in FIG. 6, a plurality of electromagnets 90 may be continuously installed to cover the hermetic channel 60, and a skid beam of the skid system 3 may correspond to the installed electromagnet 90. Also, the electromagnet 92 may be installed at the 16. At this time, the polarity of the electromagnet 90 on the sealed channel 60 and the polarity of the electromagnet 92 attached to the skid beam 16 may correspond to each other. That is, in FIG. 6, the polarity of the electromagnet 90 on the hermetic channel 60 is indicated by −, and the polarity of the electromagnet 92 attached to the skid beam 16 becomes +.

When the skid system 3 is positioned above the guide block 54 to load out by this configuration, the cooling means 64 is operated to expand the expandable liquid 62, ie, water, filled in the closed channel 60. As the ice is cooled, the volume expands, so that the surfaces of the electromagnets 90 in which the skid system 3 is located protrude to the top of the guide block 64, and the position corresponding to the protruding electromagnet 90 Controlling the electric control panel 94 to match the polarity of the electromagnet 92 of the skid beam 16 and the protruding electromagnet 90 with each other, the skid beam 16 of the skid system 3 with the reaction force by the same polarity And a gap is formed between the guide block 54 and the guide block 54.

Thus, when the skid system 3 slides while the cooling operation of the cooling means 64 and the polarity control of the electromagnets 90 and 92 are simultaneously performed, the frictional resistance is reduced. The system 3 can be sullid.

For example, in FIG. 6, the polarity of the electromagnets 90 in which the sliding skid system 3 is located is controlled from-to +, but on the contrary, even if the polarities of the electromagnets 90 are configured to be controlled from + to-, Of course it can work as well.

As described above, in the support structure device for sliding launch system of the present invention, as the support of the lower concrete block is deformed from "동시에" form to "ㅛ" form, the load of the upper skid system is distributed to two places, and by cooling Since the surface of the ice naturally protrudes due to the solidification of the expandable liquid, the frictional resistance during sliding is reduced, eliminating the need for a conventional, expensive specialty Teflon skidding plate, and also requiring the application of grease to the environment. none. In addition, the skid system can be pushed or pulled as a low-capacity winch, thus reducing the cost of push-and-pull hydraulic systems and cooling means and electromagnets only when large offshore structures are located on top of the guide block. Since the polarity control of is simultaneously performed, this selective operation can also minimize the operating cost.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not explicitly disclosed in the embodiments of the present invention. It is to be understood that the invention is not limited to the disclosed embodiments. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

3: skid system 10: foundation
12: lower concrete block 12, 52: support
16: skid beam 20: skid plate
50, 80: support device of the present invention 54: guide block
60: sealed channel 62: expandable liquid
64: cooling means 66: cooling coil
90,92: Electromagnet

Claims (5)

A guide block formed on the support of the lower concrete block to distribute the load of the skid system,
It is formed between the guide block, and the closed water channel containing the fluid therein,
And cooling means for selectively cooling the fluid to produce ice that is expanded in volume than in the liquid state,
And said closed channel is positioned to allow said ice to protrude above said guide block upon sliding of said skid system to reduce frictional resistance of said skid system. A guide block formed on the support of the lower concrete block to distribute the load of the skid system,
And a closed water channel formed between the guide blocks.
An electromagnet installed to cover the sealing channel,
An expandable liquid filled in or below the electromagnet,
Including cooling means for cooling the liquid,
In the sliding of the skid system, the cooling means is operated to freeze the liquid filled in the sealed channel to expand its volume, and the surface of the electromagnet protrudes above the guide block to reduce the sliding frictional resistance of the skid system. Supporting device for launching system. 3. The method of claim 2,
And an electromagnet installed in the skid system so as to correspond to an electromagnet installed to cover the hermetic channel, wherein the electromagnet on the hermetic channel and the electromagnet of the skid system have different polarities. The method of claim 3, wherein
And the skid system is positioned above the guide block, so that the polarity of the electromagnet of the skid system and the electromagnet on the enclosed waterway are controlled to be equal to each other. 5. The method of claim 4,
And a polarization control of the electromagnet and a polarization control of the cooling means.

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