JPS5917962Y2 - Oil fence connection structure - Google Patents

Description

[Detailed description of the invention] This invention relates to an oil fence that is deployed on the water surface in the event of an oil spill accident or as a preventive measure, and in particular relates to the connection structure between a floating type oil fence and a portable oil fence. It is something.

In recent years, social interest in marine oil spill accidents has increased, and various preventive measures have been proposed.

Among these, many oil fences that are extended above the water surface to prevent the spread of spilled oil have been proposed and put into practical use.

By the way, oil fences currently in use can be roughly divided into two types depending on their purpose.

One of them is mainly used in offshore structures with cargo handling equipment, such as so-called sea berths, which are fixedly extended to the seabed with anchor ropes surrounding the sea berth, and float or sink when air is supplied and exhausted. It is a type oil fence.

The other type is a portable oil fence that is stored rolled up on a quay and floats on the water surface using a block float made of foam or other material that is towed and expanded by a work boat or the like when necessary.

Floating and sinking type oil fences can surround a wide area in a relatively short period of time, and are preferably used because of their preventive effect and their large oil retention effect.

However, since floating type oil fences are moored to the seabed with anchor ropes, they have the disadvantage that once installed, the enclosing area cannot be easily changed, and furthermore, they are susceptible to unforeseen accidents caused by tanker propellers, mooring ropes, etc. Another drawback is that if damaged, floating operations become virtually impossible.

This invention eliminates the above-mentioned drawbacks of a floating oil fence and makes it possible to connect it with a portable oil fence for changing the enclosing area or repairing a damaged fence without impairing the floating and sinking function. These include a floating type oil fence that floats and sinks by supplying and discharging air, which is made up of a float hose that extends in the longitudinal direction and has fins at the top and a skirt at the bottom, and the end of the floating type oil fence. A portable oil fence that floats on the water surface by an attached connecting member and a block float such as a foam that is connected via the connecting member, and one end of which is connected to the float hose at the end of the floating type oil fence from the depth of the water. This oil fence connection part structure is characterized by comprising a long air hose and an on-off valve provided at the other end of the air hose.

The structure of the connection part of the oil fence of this invention will be explained below according to the drawings.

1 and 2, reference numeral 1 denotes a floating type oil fence, which consists of a float hose 2 extending in the longitudinal direction, fins 3 and a skirt 4 extending above and below, respectively. At the bottom end of 4 is a weight 5
is provided.

The floating type oil fence floats and sinks by supplying and discharging air in the float hose 2.

A flanged nipple 6 is inserted into the end of the floating oil fence 1, and is held down by contact plates 7 from both sides and fixed with bolts, nuts, etc.

In the figure, 8 is a portable oil fence that floats on the water surface on a block float 9 made of foam or the like.

The floating oil fence 1 and the portable oil fence 8 are connected by a connecting member 10.

Details of the connecting member 10 are shown in FIGS. 3 and 4.

The connecting member 10 shown in FIG. 3 before being connected is a joint plate to be fixed to the end of an oil fence (floating type or portable type) with bolts, nuts, etc.) 11 a
, 11b, and rod-shaped connectors 12a, 12b fixed to opposite ends thereof.

A receiver 13 is provided at the lower end of one of the rod-shaped connectors 12H into which the lower end of the other rod-shaped connector 12b can be fitted, and a receiver 13 is provided at the upper end of the rod-shaped connector 12b. When the lower end is inserted into the member 13, the side rod-shaped connector 1
2a, 12b A ring-shaped fixing member 14 is provided for more stable fixation.

In the figure, reference numerals 15a and 15b are handles for lifting up and detaching rod-shaped connectors 12a and 12b attached to the ends of these oil fences when connecting opposing oil fences.

The opposing oil fence is connected to the rod-shaped connector 12 a in FIG.
, 12b shows the connected state.

In this case, first, in the above-mentioned connecting member 10, the joint plate H1a is fixed to the contact plate 7 at the end of the floating type oil fence 1 with bolts and nuts.

On the other hand, a joint plate 11b is similarly fixed to the end of the portable oil fence 8.

After doing this, for example, lift the rod-shaped connector 12b at the end of the joint plate (11a) attached to the portable oil fence 8 from the handle 15b, and remove the joint plate (11a) attached to the floating type oil fence. The rod-shaped connector 12 a at the end is fitted into the member 13 to connect both oil fences by the connecting member 10 .

Further, as shown in FIGS. 1 and 2, one end of the air hose 16 is connected to a flanged nipple 6 attached to the end of the floating oil fence.

An on-off valve 17 is provided at the other end of the air hose 16.

The length of the air hose 16 is such that the opening/closing valve 17 can be set above the water surface (
It needs to be longer than the depth of the water so that it can be operated on, for example, on a work boat.

The connection structure of the oil fence of this invention described above can be used, for example, when a part of the floating type oil fence line that surrounds a certain area is damaged, or when it is desired to open a part of the line to further expand the surrounding area. To,
The portable boom can be used in place of a damaged fence or a newly added fence without damaging the existing flotation function.

The effect of using the oil fence connection structure of this invention when a part of the floating type oil fence line is damaged will be explained.

First, the specs of the fence that were damaged by the work boat were removed.

In this case, air hoses 16 with valves 17 are connected to the float hose portions at the ends of the remaining oil fence lines, and furthermore, connecting members 11a and 12a for connecting the portable oil fence are attached.

Next, a portable oil fence corresponding to the length of the removed fence is prepared, and connecting members 11b and 12b that engage with the connecting members are attached to both ends of the portable oil fence.

Thereafter, by connecting both connecting members, the portable boom can be extended to the part that has been removed due to damage.

In this way, there is no need to re-stretch the entire circumference with a new boom line on a work boat, which takes a long time as in the past, and only the damaged part of the boom line needs to be replaced, which significantly reduces work time. Can be shortened.

Also, once the connection structure of this invention is formed,
Since it is only necessary to deploy an extremely short portable oil fence on a work boat, this method is advantageous in preventing the spread of spilled oil, which is always an urgent matter.

When sinking a floating oil boom line equipped with the connection structure of this invention, the existing line air exhaust device is activated, and the valve 17 attached to the free end of the air hose 16 is opened.

At this time, the portable oil fence 8 is removed from the line and recovered to the work boat.

After the line has completely subsided, the valve 17 is closed again, a buoy (not shown) is attached to the tip as a mark, and the line is allowed to sink to the seabed.

In order to resurface this sunken line, the air supply device is activated, a portable oil boom is transported by a work boat, and the line is connected as described above.

If a part of the line of a floating type oil boom is damaged due to this problem, or if you want to quickly expand the line, you can use the connection structure of this invention to maintain the floating function of the existing floating type oil boom and make it more maneuverable. This makes it possible to combine portable oil fences with various functions, which is extremely advantageous in terms of urgent oil spill prevention measures.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the connection structure of the oil fence of this invention, Fig. 2 is a front view thereof, and Figs. It is a front view which shows the state before and after connection of the connection part structure of this invention.

Claims (1)

[Scope of utility model registration request] A floating type oil fence that floats and sinks by supplying and discharging air, which is formed by a float hose extending in the longitudinal direction and having a fin at the top and a skirt at the bottom, and a connecting member attached to the end of the floating type oil fence. , a portable oil fence that floats on the water surface by a block float such as a foam that is connected via the connecting member, and an air hose that is longer than the depth of the water and that has one end connected to the float hose at the end of the floating type oil fence. , and an on-off valve provided at the other end of the air hose.