JPS5937438Y2 - Oil fence expansion ship - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an oil fence deployment ship that automatically drops an oil boom onto the sea or pulls it up from the sea into the ship.

In the unlikely event that an oil spill occurs at an oil storage base or oil refinery base, an oil fence will be deployed around the spilled oil to prevent its spread at sea.

However, in the past, in many cases, a general work boat was also used as an oil fence deployment vessel, and an oil fence storage area was installed on the rear deck of the work boat, and a working winch on the deck was used when deploying an oil fence. The oil booms are sequentially hoisted onto the deck from the storage area and thrown into the sea from the stern, and most of the operations are carried out manually.As a result, sending out and recovering the oil boom cannot be done quickly and the work is highly dangerous.

Furthermore, the ship's driver in the wheelhouse maneuvers the ship while monitoring the work situation, so if the worker is unfamiliar with the work, it will greatly affect the fence extension work and pose a major hindrance to preventing the spread of spilled oil in the initial stage.

Additionally, there have been some vessels dedicated to deploying oil fences, but their automation cannot be said to be sufficient.

For example, by installing a slide at the rear of the ship that can extend out to sea,
Some oil booms are stored in the hold at the rear of the ship's hull, and are placed on a slide and released into the sea as the ship moves forward, but most of them rely on human labor, and the automation of sending out and collecting oil booms is not sufficient. .

This invention was developed in view of the above, and aims to promote automation of oil boom deployment and collection, and improve safety in order to quickly respond to the prevention of the spread of oil spills at sea. An embodiment will be described with reference to the drawings.

1 is an oil fence deployment vessel of the present invention, equipped with an engine and capable of navigating with its own blade.

2 is a hold for storing an oil fence that extends from the rear of the wheelhouse 3 to near the stern; 4 is a hatch cover that covers the opening of the hold 2 and consists of a lower cover; They are guided by parallel left and right horizontal rails 5 and 6 that extend to the stern end of the ship, and are stored in two stacks on the stern deck.

Reference numeral 7 denotes an oil fence, which is a flexible structure made by connecting a number of floating bodies made of waterproof material such as vinyl.

A rotating drum 8 is installed at the stern end of the ship for delivering the oil boom out to sea or pulling it onto the ship, and is installed at the center of the upper part of a gate-shaped frame 10 that is erected across the upper deck on the port and starboard sides of the stern end.

11 is when the oil fence is deployed, the oil fence is placed in hold 2.
Rotating drum 1 that is sent into the hold when being pulled out or stored
2 at the front (on the bow side).The trolley 11 is guided by a parallel guiding member installed on the upper deck at a higher position than the hatch cover 4, and is mounted on the hold and on the stern upper deck. is moved between the two by a driving means.

The rotating drums 8 and 12 are both rotated forward and backward by remote control from the wheelhouse 3, and an oil fence hook is provided on the outer periphery of the drum.

The guide member for guiding the bogie 11 and the driving means for moving the bogie 11 may be any device that moves the bogie 11 from above the hold 2 to the storage area on the stern upper deck or in the opposite direction. A rail 13 extending to the stern end and installed horizontally on the upper deck is shown, on which the wheels of the truck ride and the truck is guided.

A cable 14 and a winch 15 for winding the cable are shown as driving means.

That is, winches 15 are provided on the left and right sides of the truck 11 with their winding barrels extending outward, while cables 14a and 14b, one end of which is fixed to each of the front and rear ends of the truck 11, are attached to the outside of the wheelhouse 3 and the stern gate type frame 10. Pulley 1 installed in each
6a and 16b, it is folded back and wound onto the winding drum of the winch 15.

The left and right winches are synchronously rotated by remote control in the wheelhouse, and the truck is moved back and forth by winding one of the ropes 14a or 14b wound around the winches.

A turn baffle for length adjustment is attached to each of the allotropes.

It is also possible to use an arbitrary drive system such as a combination of a rack and pinion instead of the cable and winch.

Further, on the truck 11, an oil fence holder roller 18 is attached to the tip of a rod 17 that projects toward the stern.

Furthermore, a crane 19 is provided on the trolley 11 for hoisting the oil fence from the hold of the ship or from the sea.

This crane is also used to load equipment onto ships and unload them overboard.

However, if there is a cargo crane on the upper deck, the crane on the trolley may be omitted.

Reference numeral 20 denotes an oil fence holder rotatably attached to the tip of a rod 21 which is pivotally mounted above the inner wall near the stern of the hold so that it can rotate up and down.It is a roller that rotates downward when not in use, and upward when in use. and fix it upward using an appropriate fixing means.

Note that if two or more oil booms are to be sent out to sea at one time, the number of rotating drums 8 and 12 will be increased accordingly.

The operation of the above configuration will be explained.

In order to pull out the oil fence 7 stored in the cargo hold 2 from the cargo hold and drop it on the sea, when the ship sails on its own and arrives at the scene, close the hatch cover 4 using an opening/closing device (not shown) as shown in Fig. 1. From this state, move to the stern storage area as shown in Figure 2, stack the upper and lower covers, and move the truck 11 back to the position shown by the dotted line in Figure 2. Pull out the fence 7 sequentially from the front of the hold (bow side).

First, the receiver raises and fixes the roller 20.

After that, if a crane 19 is installed on the bogie 11, the rotating drum 12 is used to lift one end of the oil fence 7 stored in the hold 2 and install it on the bogie 11.
The drum is moved in the direction of arrow a by remote control from the wheelhouse.
When the oil boom 1 is rotated, it is pulled up from the hold.

That is, the oil fence hook is a member, and the crosspiece 22 is fixed in the width direction in the circumferential direction at a constant pitch of the circumference of the drum. When engaged, the boom is sent in the direction of rotation of the drum.

The oil fence sent by the rotating drum 12 is placed on the rotating drum 8 at the stern end by a worker.

The drum is also rotated in the direction of the arrow by remote control from the wheelhouse, and the oil boom is sequentially paid out at sea.

Like the rotating drum 12 on the truck, the rotating drum 8 has a crosspiece 22' attached around its trunk, so the oil fence is sent without being tripped over.

Further, if the distance between the rotating drums 8 and 12 is large, the oil fence will hang down, but the oil fence will be stopped by the rollers 1B and 20 as shown by the dotted line A in FIG.

The truck 11 gradually retreats as the oil boom is pulled out from the hold, and finally stops on the stern upper deck, indicated by the solid line in Figure 2.

The oil fence dropped onto the sea in this way is moored at one end to an anchor or buoy by a working membrane, and the oil fence is extended over a predetermined area to prevent spilled oil floating on the sea from spreading.

When lifting an oil fence onto a ship from the sea and storing it in a hold, the oil fence can be carried out in the reverse order to the above-mentioned operation for sending the oil fence out to sea.The oil fence, with one end lifted from the sea, is first placed on the rotating drum 8 at the stern end. When the oil boom is lifted onto the ship, the drum is being rotated in the opposite direction to the direction of the arrow.

The lifted oil boom is placed on a rotating drum 12 on a trolley.
It is lowered into the hold by the rotation of the drum in the opposite direction to arrow a.

The lowered oil booms are stored in order by workers from the rear of the hold toward the bow, and the truck is gradually moved toward the bow accordingly.

As explained above, the present invention is applied to an oil fence deployment ship that is equipped with a hold for storing an oil fence that opens toward the stern toward the upper deck. A rotating drum has a member attached to the outer circumference of the hull that can be rotated forward and backward by remote control, a guide member extending from both port and starboard sides of the hold to the stern end and installed horizontally on the upper deck, and guided by the guide member. The oil fence is pulled up from the hold or sent into the hold.The oil fence is rotated forward and backward by remote control.The oil fence is hooked onto a dolly with a rotating drum installed on the outer periphery of the shell, and a drive means for moving the dolly back and forth by remote control. Compared to the conventional method, in which an oil boom unwinding winch was installed at the stern end of the ship and the loading and unloading into and out of the hold was carried out by hand, the present invention uses a bogie that runs above the hold. A rotating drum is installed to pull up or feed the oil boom into the vessel, making it possible to automate the loading and unloading of the oil fence from the ship's hold, saving labor and making it quick and safe.Furthermore, a rotating drum fixed at the stern end of the vessel allows for the oil fence to be sent out to sea. As a result, the oil booms sent from the front rotating drum can be received one after another and sent out to sea, making it possible to deploy to the sea more quickly than before and effectively preventing the spread of spilled oil.

In addition, lifting the oil fence from the sea can be done by remote control, which significantly reduces the number of people involved, making it quick and safe.

Furthermore, by automating the work, even ordinary workers can easily deploy and retrieve oil booms.

[Brief explanation of the drawing]

Figure 1 shows an embodiment of the oil fence deployment vessel according to the present invention, and Figure 2 is a side view with the bow section omitted, and Figure 2 shows the hatch cover in the closed state shown in Figure 1 being opened and the oil boom being delivered via a rotating drum or out onto the sea. FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. 1 oil fence expansion vessel, 2: hold, 7: oil fence, 8: rotating drum, 11: bogie, 12: rotating drum, 13: rail (guiding member), 14 (14a, 14b):
Cable (driving means), 15: Winch (driving ratio stage), 16a
, 16b: Pulley, 22° 22/: Crosspiece (the hook is a member).

Claims (1)

[Scope of utility model registration request] In an oil fence deployment ship equipped with a hold for storing an oil fence that opens toward the upper deck at the stern end, the oil fence is fixed on the upper deck at the stern end and can be moved forward or backward by remote control to extend the oil fence out to sea or pull it up onto the ship. The oil fence is attached to the outer periphery of the rotating body by a rotating drum equipped with members, a guide member that extends from both port and starboard sides of the hold to the stern end and was originally installed on the upper deck, and the oil fence is guided by the guide member. A trolley with a rotating drum installed on a platform, which is equipped with an oil fence hooking member on the outer periphery of the body that is rotated forward and backward by remote control to be pulled up from the cargo hold or sent into the cargo hold, and a drive means for moving the trolley back and forth by remote control. An oil fence deployment vessel equipped with