JPH05170177A - Cleaning device for hull shell - Google Patents

Abstract

PURPOSE:To wipe out the water scale stuck on the surface of a hull shell in particular with a simple means regarding the cleaning device of the hull shell under the water surface. CONSTITUTION:A hose 1 capable of feeding or discharging air and arranged along both side outer faces and the bottom lower face of a hull 4 to be cleaned under the water surface, many cleaning projections 2 protruded on the outer face of the hose 1, and a hose drawing means 5 for drawing the hose 1 in the longitudinal direction of the hull 4 to wipe out the water scale on the surface of a hull shell while the hose 1 is filled with air, inflated into the buoyancy state, and closely stuck to the surface of the hull shell together with the projections 2 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device capable of wiping off the water stains (slime) on the outer surface of a hull, and particularly applicable to small ships such as yachts to large ships such as tankers. The present invention relates to a plate cleaning device.

The present apparatus can also be used for removing scales on the bottom skin of oil storage tanks floating on water, offshore structures such as floating buildings and oil drilling rigs.

[0003]

2. Description of the Related Art Conventionally, in order to remove the dirt on the outer surface of a hull below the water surface, a ship is put in a dock, and high-pressure water is sprayed on the outer surface of the ship or the bottom of the ship to wash it. ing.

[0004]

However, the conventional hull skin cleaning means as described above has the following problems. (1) The operation of putting a ship in the dock, removing the seawater in the dock, and washing the hull skin with high-pressure water is very expensive for large ships. (2) Even for small vessels, the conventional cleaning means incurs a reasonable cost. (3) For a long period of time on the outer plate surface of a ship anchored on the sea, water stains first occur, and then seaweeds and oysters and other marine life flourish on the water stains, which causes soiling to develop. (4) The above-mentioned scales and marine life on the outer surface of the hull cause a decrease in the propulsion performance of the hull and increase the fuel consumed by the main engine.

The present invention is intended to solve the above-mentioned problems, and provides a hull outer plate cleaning device capable of efficiently and inexpensively removing water stains which are a source of fouling of hull outer plates. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, the hull skin cleaning device of the present invention is arranged below the water surface so as to be along the outer surface of both sides of the hull to be cleaned and the lower surface of the bottom of the hull. An exhaustable hose, a number of cleaning protrusions protruding from the outer surface of the hose, and a buoyant state in which the hose is inflated by filling it with air. It is characterized in that it is provided with a hose towing means for pulling in the longitudinal direction to wipe off water stains on the outer surface of the hull.

[0007]

In the above-mentioned hull skin cleaning device of the present invention, the hoses are deflated and put on both the ship side skin and the bottom shell skin, and then the hoses are filled with air to inflate the hose. In a buoyant state, it should be in close contact with the outer surface of the hull along with many protrusions on its outer surface.

In this way, the hose is towed in the longitudinal direction of the hull by the hose towing means while keeping the hose in close contact with the outer surface of the hull, and a large number of projections on the outer surface of the hose remove water stains on the outer surface of the hull. The wiping action is performed.

[0009]

1 is a partial perspective view showing the hose in a deflated state, and FIG. 2 shows the inflated state of the hose. FIG. 3 is a partial perspective view showing the same, FIG. 3 is a perspective view showing its usage, and FIG. 4 is a front view showing its usage.

As shown in FIGS. 3 and 4, this device has a hose 1 capable of injecting / exhausting, which is arranged along the outer surface of both sides of the hull 4 to be cleaned and the lower surface of the bottom of the ship under the water, As shown in FIG. 1, a large number of villus-shaped cleaning projections 2 are provided on the outer surface of the hose 1.

Then, as shown in FIGS. 3 and 4, the hose 1 is brought into close contact with the outer plate surface of the hull 4 together with the protrusions 2 in a buoyant state in which the hose 1 is inflated by filling with air 3 as shown in FIG. As a means for pulling the hose 1 in the longitudinal direction of the hull 4 via the rope 6 as it is, a two-sided work boat 5 that can travel along both sides of the hull 4 is used.

When cleaning the hull 4 while floating on the water surface in the dock, a crane that can travel along both sides of the dock can be used as the towing means for the hose 1.

This device is constructed as described above, and when the hose 1 is set on the hull 4 to be cleaned prior to its use, the hose 1 is first deflated and its own weight is applied. The hose 1 is hung down and inserted below the bottom of the hull 4, and then air 3 is forced into the hose 1 by an air supply device (not shown) to inflate the hose 1. Both ends of the hose 1 are closed by caps or the like (not shown).

The hose 1 thus inflated produces buoyancy, and the projections 2 are formed on the lower surface of the bottom of the hull 4 and the outer surfaces on both sides of the ship.
Comes in close contact with.

Then, when the hose 1 is towed in the longitudinal direction of the hull 4 by the towing means such as the work boat 5, the scales adhered to the outer plate surface of the hull 4 are projected on the outer surface of the hose 1 in large numbers. It is wiped off by the protrusions 2 of. The protrusion 2
As the material of the rope, rope material made of plastic fibers having innumerable uneven surface so as to adsorb the scale on the outer surface of the hull is used, or on the surface of the projection 2 so that the scale is scraped off from the outer surface of the hull. Further, a rubber block material having a large number of small protrusions may be used.

As described above, according to the present apparatus, it is possible to easily remove the scales adhered to the outer plate surface of the hull while the hull 4 to be cleaned is floating on the sea surface. There is an advantage that expensive cleaning work such as discharging the water in the dock and spraying high-pressure water to the outer surface of the ship after the hull is put in the dock is not required.

[0017]

As described in detail above, according to the hull skin cleaning device of the present invention, the following effects and advantages are obtained. (1) The hull to be cleaned can be floated on the sea surface to remove water stains on the outer surface of the hull. (2) According to the above item (1), it is possible to significantly reduce the cost required for maintenance, since it is not necessary to perform an expensive washing work by spraying high-pressure water in the dock as in the past. (3) Due to the above items (1) and (2), the hull skin can be cleaned more frequently, and the development of stains on the hull skin can be prevented.As a result, the hull propulsion performance is improved. Can be prevented.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing a state in which a hose is deflated in a hull skin cleaning device according to an embodiment of the present invention.

FIG. 2 is a partial perspective view showing a swelled state of the hose.

FIG. 3 is a perspective view showing how the device is used.

FIG. 4 is a front view showing how the device is used.

[Explanation of symbols]

 1 Hose 2 Protrusion 3 Pressurized air 4 Hull to be cleaned 5 Work boat 6 Rope

Claims (1)

[Claims] 1. A hose capable of injecting / exhausting, which is arranged along the outer surfaces of both sides of the hull to be cleaned below the water surface and the lower surface of the bottom of the hull, and a large number of cleaning projections provided on the outer surface of the hose. Hose towing means for pulling the hose in the longitudinal direction of the hull by pulling it in the longitudinal direction of the hull while keeping the hose in close contact with the hull outer plate surface in the buoyant state by inflating it with air A hull outer plate cleaning device, characterized in that