JPS5810747Y2 - flotation device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a flotation device.

Conventionally, when a certain section or partition is required for a certain type of work or purpose on or under water,
A method is known in which the division or partition is formed using an oil fence or the like and a floating device.

In these flotation devices, a forced sinking section consisting of a weight and a hose-like object is usually provided in order to maintain a completely submerged state when not in use and to maintain a uniform floating state when in use.

However, when the hose-like object is cut or opened in these flotation devices, fluids such as water, seawater, and sometimes suspended matter and sludge enter the hose-like object.

Further, even if the hose-shaped object is not damaged at all, condensed components in the buoyancy imparting gas are accumulated, and the condensed components are stored at the level of the hose-shaped object in the forced sinking section located at the lowest position.

Therefore, it is essential to repair the damaged portion of the hose-like object and to discharge these components that have entered or condensed.

However, these operations are extremely difficult because the objects are under water.

Further, when these operations are performed onboard a ship, a great deal of labor and expense is required.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks and to provide a flotation device equipped with a device that can easily and quickly discharge the contents of a forced subsidence hose.

The present invention is a device that has a forced sinking part consisting of a weight 1 and a hose-like object 2, and floats and sinks by supplying and exhausting buoyancy gas into the hose-like objects 2 and 4. It communicates with the lower part of the hose-like object 2, and is positioned so that the other end is above the water surface when the device is in a floating state, and a strainer 6 equipped with a blow valve 8 and a safety valve 9 is connected to the other end. This is a flotation device characterized by the following.

Hereinafter, the apparatus of the present invention will be explained with reference to the drawings.

A weight 1 constituting a forced sinking part of the flotation device is made of metal such as iron or FRP, or synthetic resin, and is attached to the lower part of a hose-like object 2.

The hose-like object 2 is connected via an L-shaped joint 3 to a hose-like object 4 that constitutes a floating section.

Further, one end of the guide pipe 5 communicates with the lower part of the hose-like object 2, preferably the lower end, and the other end is located above the water surface when the flotation device is in a floating state, and is connected to the strainer 6. Connected.

When connecting the end of the guide tube 5 and the strainer 6,
It is desirable to install a spare valve 7 as shown in the figure so that the strainer and the like can be repaired or inspected at any time.

Further, a blow valve 8 and a safety valve 9 which also serves as an automatic blow valve are attached to the strainer.

Furthermore, the hose-like e14 has a buoyancy imparting gas inlet (
(not shown) etc. are provided.

When the flotation device of the present invention is allowed to sink, it is done by removing a buoyancy gas such as air and letting it settle from the weight, and adjusting the deaeration.

In addition, when floating the flotation device, the weight of the weight is used to keep the hose-like object 4 horizontal, that is, so that there is no difference in the height of the hose-like object 4, and the buoyancy gas is applied. This is done by feeding it into the hose-like objects 2 and 4.

Therefore, the hose-like material must be made of a material and structure that deforms and changes its internal volume as gas is introduced and discharged, such as synthetic rubber or natural rubber.

Rubber or plastic materials such as vinyl chloride resin are used.

Note that the hose-like object 4 that floats on the water surface when the device is in a floating state may be a steel pipe, but in this case, the weight of the hose-like object 2 in the forced subsidence part is added by the weight of the steel pipe.

The guide pipe guides components that have entered or condensed into the hose-like object and discharges them from the blow valve or safety valve via a strainer attached to the other end above the water surface when the flotation device is in a floating state. .

Therefore, the material may be similar to that of the hose-like material described above, and a more flexible material is preferred.

When connecting the lower part of the hose-like object 2 and the guide pipe 5, it is preferable to connect the lower part of the hose-like object 2 to the guide pipe 5 through a tubular outlet 10 made of a rigid material such as a metal pipe.

Furthermore, it is preferable that the guide tube be fixed to the forced sinking section at an appropriate location so as not to separate from the forced sinking section.

A strainer 6 is connected to the other end of the guide pipe extending to the vicinity of the L-shaped joint 3 via a valve 7, and the strainer is equipped with a blow valve 8 and a safety valve 9 which also serves as an automatic blow valve as described above. Installation.

The blow valve acts as a blow valve to remove accumulated seawater, water, sludge, etc., and also serves to clean the strainer.

The safety valve also serves as a blow valve, and while regulating the internal pressure of the hose, it automatically blows out water, seawater, etc.

In addition, the safety valve may be installed separately or in plural pieces at other positions of the flotation device or above-ground piping, etc., as necessary.

If one or more of the flotation devices with the above configuration are used in combination with a flotation type oil fence, a wave dissipating device, a flotation type cargo handling hose, etc., that is, if the flotation device is attached to these oil booms, etc., the flotation device will be damaged. Repairs to the parts and discharge of the contents of the hose can be carried out while the device is floating, and can be easily carried out by remote control.

That is, when discharging contents such as sludge accumulated in the forced submergence section of the flotation device, it is sufficient to increase the pressure in the hose, and there is no need to go underwater.

Since the contents are discharged from the blow valve via the guide pipe, the completion of the work can be confirmed visually on the water.

Similarly, maintenance and inspection work on safety valves and strainers can be performed above the water surface.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the flotation device of the present invention, and FIG. 2 is an explanatory diagram of a part of the device. 1... Weight, 2... Hose-like object, 3...
...L-shaped joint, 4...Hose-like object, 5...
...Guiding tube, 6...Strainer-17...
...Valve, 8...Blow valve, 9...
...Safety valve, 10... Outlet, 11...
・Oil fence.

Claims (1)

[Scope of utility model registration request] In a device that has a forced sinking part consisting of a weight 1 and a hose-like object 2 and floats and sinks by supplying and exhausting buoyancy gas into the hose-like objects 2 and 4, one end of the guide pipe 5 is connected to the hose-like object. 2, the other end of the strainer is positioned above the water surface when the device is in a floating state, and a blow valve 8 and a safety valve 9 are attached to the other end.
A flotation device characterized by connecting 6.