JPS6038748Y2 - Floating oil embankment connection device - Google Patents

Description

[Detailed explanation of the invention] This invention is a connecting device for a floating oil embankment, and more specifically, a floating oil embankment installed floating on the sea surface that can follow changes in the tide level, such as a quay, a breakwater, a moored dolphin, etc. The present invention relates to a connecting device for connecting to a fixed structure.

Floating oil embankments installed floating on the sea surface as described above do not change in height (projection above the sea surface) and depth (depth below the sea surface) even if the tide level changes, so they are different from conventional fixed types. Although it has the advantage of being able to reliably prevent oil spills even if it is constructed in a smaller size than a conventional floating oil embankment, when such a floating oil embankment is connected to a fixed structure, the connected part is also susceptible to changes in the tide level. It is necessary to be able to follow and move up and down,
It is also necessary to reliably prevent oil from flowing out at the connecting parts.

As a connection device for such a floating oil embankment, for example, the one shown in FIG. 1 is known.

This coupling device includes a cylindrical slide guide 3 attached to a fixed structure 1 and having a narrow slit 2, a buoyant body 4 inserted into the guide 3 so as to be vertically movable, and a buoyant body 4 inserted through the slit 2. Buoyant body 4 and oil fence (floating oil embankment)
5 and a connecting fitting 6 that connects the oil fence 5.
can move up and down following changes in the tide level.

However, there are gaps between the buoyant body 4 and the connecting fittings 6, and the guide 3, and if a large amount of oil leaks, there is a risk that the oil will flow out through these gaps.

If these gaps are made small, it is possible to prevent oil from flowing out, but the guide 3 and the buoyant body 4 come into surface contact, making it difficult to move the buoyant body 4 up and down.

In order to reliably prevent oil from flowing out, it is known that both side edges of a flexible plate are fixed to the slide guide 3 and the connecting fitting 6, but in this case, there is a limit to the amount of deformation of the flexible plate. This makes it difficult to follow large changes in tide level.

This idea was made in view of the above-mentioned circumstances, and allows the connecting end of the floating oil embankment to move up and down smoothly following changes in the tidal level, and to prevent large amounts of oil from leaking. An object of the present invention is to provide a connecting device for a floating oil embankment that can reliably prevent oil leakage even in such cases.

The connecting device for a floating oil embankment according to this invention has a structure that connects either the fixed structure or the end of the floating oil embankment connected to the fixed structure.
A vertical outer cylinder having a slit extending vertically is attached, and a vertical inner cylinder that enters the outer cylinder through the slit and can move up and down relative to the outer cylinder is attached to the other side. An elastic bag is provided between the cylinder and the inner cylinder, which is normally closed, but expands when fluid is pressurized into the bag, sealing the gap between the outer cylinder and the inner cylinder. .

According to the coupling device of this invention, the outer cylinder provided on either one of the fixed structure and the floating oil hot end part and the inner cylinder provided on the other can move up and down relatively, The connecting end of the oil embankment can move up and down to follow changes in the tide level.

In the event that a large amount of oil leaks, water or other fluid is pressurized into the elastic bag, which inflates and seals the space between the outer and inner cylinders. It is possible to reliably prevent oil leakage in this area.

In addition, since oil leakage is prevented by inflating the bag, there is no need to make the gap between the outer cylinder and the inner cylinder particularly small. The vertical movement relative to the inner cylinder, that is, the vertical movement of the floating oil temperature connection end is smooth.

An embodiment of this invention will be described below with reference to FIG.

FIG. 2 shows the end of a floating oil embankment 11 connected to a fixed structure 10 such as a quay.

An elongated rectangular vertical steel oil-proof plate 12 is fixed at right angles to the side surface of the fixed structure 10, and a vertical cylindrical steel outer cylinder 13 of approximately the same height is attached to the tip of this oil-proof plate 12. Fixed.

A slit 14 extending vertically is formed in the peripheral wall of the outer cylinder 13 facing the floating oil embankment 11 over its entire height.

On the other hand, the outer cylinder 1 is inserted from the slit 14 into the end face of the floating oil embankment 11.
A vertical steel oil-proof plate 15 in the shape of an elongated rectangle is fixed at a right angle, and a vertical cylinder 15 that fits into the outer cylinder 13 and can move up and down relative to the outer cylinder 13 is attached to the tip of the oil-proof plate 15. A shaped inner cylinder 16 is fixed.

A plurality of rows of protrusions 17 are formed on the outer surface of the inner cylinder 16 at predetermined intervals in the circumferential direction, extending vertically over the entire height thereof.

The inner cylinder 16 and the oil barrier plate 15 have approximately the same height as the floating oil embankment 11, and a slight gap is provided between the protrusion 17 and the outer cylinder 13.

A bag 18 made of an elastic material such as rubber is arranged between the protrusions 17 at the innermost part of the gap between the outer cylinder 13 and the inner cylinder 16, and is fixed to the inner surface of the outer cylinder 13.

The bag 18 has approximately the same height as the outer cylinder 13, and the top end of the bag 18 is connected to the tip of a water injection pipe 19 arranged on the fixed structure 10.

This bag 18 is normally narrowed and in close contact with the inner surface of the outer cylinder 13, and when water is forced into the inside, it swells and comes into pressure contact with the outer surface of the inner cylinder 16, so that the outer cylinder 13 and the inner cylinder 16 are separated. It is designed to seal the space between.

The configuration of the floating oil embankment 11 is arbitrary, but its height and swamp should be such that it has a height above the sea surface and a height below the sea surface that is sufficient to reliably prevent leakage and dispersion even if a large amount of oil leaks. Depth is determined.

In addition, the heights of the outer cylinder 13 and the oil-proof plate 12 fixed to the fixed structure 10 are determined to prevent oil from leaking even when the tide level changes.
In addition to the above, it is determined in consideration of changes in the tide level at the location where the floating oil embankment 11 is installed so as to prevent diffusion.

Note that the inner cylinder 16 may or may not be a buoyant body.

In the above, normally the elastic bag 18 is contracted, and the inner cylinder 16 attached to the floating oil embankment 11 moves up and down along the outer cylinder 13 attached to the fixed structure 10 according to changes in the tide level. do.

Therefore, even if there are large changes in the tide level, the floating oil embankment 1
1 is kept constant, and sufficient height above the sea surface and sufficient depth below the sea surface are always ensured at the connecting portion with the fixed structure 10, so oil leakage can be reliably prevented.

There is a considerable gap between the outer cylinder 13 and the protrusion 17 of the inner cylinder 16, and since the bag 18 is normally narrowed, resistance is small and the inner cylinder 16 moves up and down smoothly.

In the event that a large amount of oil leaks, water is forced into the bag 18 from the water injection pipe 19, causing the bag 18 to swell.
It is pressed against the outer surface of the inner cylinder 16 to seal the space between the outer cylinder 13 and the inner cylinder 16.

Therefore, there is no risk of oil flowing out from between the outer cylinder 13 and the inner cylinder 16.

In the above embodiment, the outer cylinder 13 is provided on the fixed structure 10 side, and the inner cylinder 16 is provided on the floating oil embankment 11 side, but these arrangements may be reversed.

The material and structure of the bag 18 are not limited to those of the above embodiments, but can be changed as appropriate.

For example, a plurality of bags 18 may be arranged between the outer tube 13 and the inner tube 16.

In the above embodiment, the bag 18 is fixed to the inner surface of the outer cylinder 13, but the bag may be fixed to the outer surface of the inner cylinder 16,
It may be suspended from the upper end of the outer cylinder 13 or the inner cylinder 16 and not fixed thereto.

Further, a liquid or gas other than water salt may be press-fitted into the bag 18.

In the above embodiment, the protruding stripes 17 are provided only on the outer surface of the inner cylinder 16, but the protruding strips may be provided only on the inner surface of the outer tube 13, or on both of these.

Furthermore, depending on the case, the protrusion may not be provided.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a conventional example, and FIG. 2 is a plan view showing an embodiment of this invention. 10...Fixed structure, 11...Floating protection oil temperature, 13...Outer cylinder, 14...Slit, 16...Inner Tube, 1 carcass...bag.

Claims (1)

[Claims for Utility Model Registration] A vertical outer cylinder 13 having a slit 14 extending vertically is attached to either one of the ends of the fixed structure 10 and the floating oil embankment 11 connected thereto, and the above-mentioned On the other hand, a vertical inner cylinder 16 that enters the outer cylinder 13 through the slit 14 and can move up and down relative to the outer cylinder 13 is attached. The outer cylinder 13 and the inner cylinder 1 expand due to the fluid being forced into the inner cylinder.
A connecting device for a floating oil embankment, which is provided with an elastic bag 18 that seals the gap between the floating oil embankment and the levee.゛