JPH0481386A - Salvaging method for floating sunken vessel - Google Patents

Abstract

PURPOSE:To facilitate the salvage of a sunken vessel, by forming a space capable of sealing gas by utilizing a hull structure inside the sunken vessel, and feeding gas inside the space, and sealing the space, and easily floating up the sunken vessel body on the sea by utilizing the buoyancy generated by the gas. CONSTITUTION:A passage 6 for the going-in/out of workers is set in the bottom part of a space inside a sunken vessel which is to be sealed with gas, and an airtight-broken part in the upper part of a hull structure body 5 or the part requiring the holding of airtightness is filled with a filling sealant 8 consisting of a water-hardened type high polymeric material or a ceramics material by using a pouring device, and a perfect sealed structure is formed. Then, gas is sent into the inside of the airtight space 7 of the sunken vessel 1 by using an air feeding pipe 4 from an air compressor 3 installed on a salvaged vessel 2, and a buoyancy is generated, and the hull is floated up on the sea by utilizing this buoyancy. While, according to the working environment, the hull is floated in the sea under the sea level, and after the vessel is shifted from the sinking place, the salvage work is carried out.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides buoyancy by inserting gas into a sunken ship to make it rise from a sunken place, or float it in water below the surface of the water so that it can be lifted from a sunken place. Concerning a method for resurfacing and salvaging a sunken ship.

[Conventional technology]

Conventionally, the method of surfacing a sunken ship is to attach a wire to the sunken ship and hoist the wire from a crane ship at sea, but this method has a limit to the weight that can be lifted by a crane ship at sea. In many cases, it is impossible to actually raise the ship to the surface because it is difficult to pin down the salvaged ship and it is difficult to work at the sunken site.

[Problem that the invention seeks to solve]

The present invention was proposed in view of these circumstances. With conventional methods, small sunken ships can be lifted up and brought to the surface relatively easily, but when the sunken ship becomes large, For example, if it is necessary to use a heavy-duty crane ship or multiple crane ships, and if even a heavy-duty crane ship cannot handle the situation, the hull of the sunken ship may be cut underwater and a suitable The reality is that it requires a huge amount of money and time, including work to make it heavier. Furthermore, depending on the work location, it may be difficult to secure large vessels carrying salvage equipment, or it may be difficult to carry out work for long periods of time due to the influence of the weather, and there are many other problems. The reality is that most sunken ships are left untouched.

[Means for solving problems]

For this reason, the present invention utilizes the hull structure itself to secure an airtight space even when salvaging the hull of a heavy sunken ship without having to cut the hull underwater.

A buoyant force is generated by enclosing gas in the buoyant vessel, or by inserting a floating object sealed with gas inside the hull of a sunken ship, and this buoyant force is used to float the sunken ship.

[Effect]

This flotation and salvage method makes it possible to relatively easily float, move, or salvage sunken ships of all sizes and weights.

Embodiment Below, one embodiment of the present invention will be explained with reference to the drawings.
The figure shows a method according to the present invention, in which the gap in the airtight broken part of the hull structure inside a sunken ship is filled with an underwater hardening type polymeric material or ceramic material to seal it and make the space airtight. This shows how to make it possible to seal gas inside the vessel and use the buoyancy generated by this gas to levitate or move the ship.

Figure 2 shows the insertion of elastic sealing objects into the gaps in all airtight areas of the hull structure inside the sunken ship.

A method is shown in which an airtight structure is achieved by a method of encroachment, and the buoyancy generated by sealing gas inside the airtight space is used to levitate or move the ship.

Figure 3 shows how to create an airtight space by inserting a large membrane-like container with sufficient strength and flexibility in order to close the airtight breakdown of the internal space of the hull structure inside a sunken ship. This describes a method for floating or moving a ship using the buoyancy generated by sealing gas inside the airtight space.

Figure 4 shows that refrigeration pipes are laid along the ceiling panels and walls on the inner surface of the hull structure where the airtightness inside the sunken ship has been broken, and a refrigerant is sent into the refrigeration pipes to cool the liquid around the space inside the sunken ship. This shows how to freeze a ship to create an airtight space surrounded by a frozen layer, and then use the buoyancy created by sealing gas inside the airtight space to float the ship on the water surface or move it underwater. .

Figure 5 shows floating objects filled with hollow air, such as balloon-shaped floating objects and ping-pong spheres, without making the space inside the hull structure of the sunken ship airtight. A floating object or capsule-shaped floating object is introduced into the sunken ship by sending it together with compressed air to generate buoyancy, and this buoyancy causes the ship to rise above the water surface or move underwater. show.

In Fig. 1, 1 is a sunken ship, 2 is a salvage ship, and 3 is an air compression device installed on the salvage ship 2, which supplies air to the inside of the sunken ship 1 using an air pipe 4. It is now possible to send it. The interior of the sunken ship 1 is renovated into a room with an airtight structure using the hull structure 5, into which the above-mentioned air is sent. It is sufficient to make only the upper space, which stores the amount of air necessary for levitation, an airtight space 7, and it is possible to provide a passage 6 for the operator, an inlet for piping, etc. at the bottom.

With this structure, prior to work, a passage 6 for workers to enter and exit is set up at the bottom of the space in which the gas inside the sunken ship 1 is to be sealed. Filling and sealing material 8 made of underwater curing polymeric material or ceramic material is filled into the airtight breaking part of the upper part of the structure 5 and other parts where airtightness must be maintained using an injection device to create a complete seal. Work is carried out in the seed water that forms the structure.

In addition, a sealant is sprayed or painted on partition walls, ceilings, floors, etc. that require sealing to create an airtight structure and create an airtight space 7.

After that, gas is introduced into the airtight space 7 of the sunken ship 1 from the air compression device 3 installed on the salvage ship 2 using the air pipe 4 to generate buoyancy, and this buoyancy is used to raise the hull of the ship to the water surface. The salvage work shall be carried out after the ship has been moved from the sinking area by being floated to the top or, depending on the work environment, suspended in the water below the surface of the water.

In Figure 2, as in Figure 1, 1 is a sunken ship and 2
is a salvage ship, and 3 is an air compression device installed on the salvage ship 2, which can send air into the interior of the sunken ship 1 using an air pipe 4 from the air compression device 3. When creating an airtight space 7 using the hull structure 5 inside the hull structure 1, an elastic material 9 for sealing is inserted into the gap in the airtight breaking part, and a similar elastic object is inserted into the smaller gap to create an airtight space. The structure is such that gas is sealed inside the airtight space 7 to generate buoyancy, and this buoyancy is used to float the hull above the water surface or, depending on the work environment, to float it in the water below the water surface. The salvage work shall be carried out after the ship has been moved from the sinking area.

In Fig. 3, as in Fig. 1, 1 is a sunken ship, 2 is a salvage ship, and 3 is an air compressor installed on the salvage ship 2. Although it is possible to send air into the interior of the sunken ship 1, when creating an airtight space 7 using the hull structure 5 inside the sunken ship 1,
An airtight space 7 is created by inserting a membrane container 1o having sufficient strength and flexibility, for example, a membrane container such as a large balloon, to close the gap at the airtight breakdown part. Gas is sealed inside to create buoyancy, and this buoyancy can be used to raise the ship to the surface of the water, or, depending on the work environment, to move the ship from the sunken area by floating it in the water below the surface of the water. After this, salvage work will be carried out.

In Fig. 4, as in Fig. 1, 1 is a sunken ship, 2 is a salvage ship, and 3 is an air compressor installed on the salvage ship 2. Although it is possible to send air into the interior of the sunken ship 1, when creating an airtight space 7 using the hull structure 5 inside the sunken ship 1,
A refrigeration plumber 3 is installed along the inner ceiling plate and wall surface of the interior space of the sunken ship, and a salvage ship 2 is placed inside the refrigeration plumber 3.
A refrigerant cooled to a temperature of -10°C or lower by a refrigeration device 11 installed in the airtight space 7 is sent using the refrigerant liquid delivery plumber 2, and the liquid around the airtight space 7 is frozen to form a frozen layer 14. is an airtight space 9, and gas is sealed inside the airtight space 9 to generate buoyancy, and this buoyancy can be used to float the ship above the water surface, or depending on the work environment. The vessel shall be suspended in the water below the surface of the water, and salvage work shall be carried out after the vessel has been moved from the sinking area.

In Figure 5, as in Figure 1, 1 is a sunken ship.

2 is a salvage ship, 3 is an air compression device installed on salvage ship 2,
Although it is possible to send air from the air compressor 3 to the inside of the sunken ship 1 using an air supply pipe 4, the inside of the sunken ship 1 is not specially made airtight, and gas is not allowed to enter the space. Floating object 151 containing a hollow air body, for example, a balloon-shaped floating object, a ping-pong ball-shaped floating object, or a capsule-shaped floating object is introduced to retain gas in the interior space of the sunken ship, and this gas The resulting buoyancy will be used to raise the ship to the surface of the water, or depending on the work environment, the ship will be suspended below the surface of the water, and the salvage work will be carried out after the ship is moved from the sinking location. In order to insert the floating object 15 containing a hollow air body into the sunken ship together with compressed air, a plurality of floating object input containers 16 are installed at the outlet of the air compression device 3, and each floating object input container 1
Switching valves are installed at the inlet and outlet of 6 to enable operation for each train, and after the floating object 15 containing a hollow air body is introduced into the floating object input container 16, the inlet and outlet switching valves are opened to supply compressed air. The filled hollow air-filled floating object 15 is pushed out and forced into the space inside the sunken ship. Thereafter, by the same operation, the floating object is fed under pressure from the floating object input container 16 on the other route, and then the same operation is repeated while alternately switching all the routes,
By returning it, the space inside the sunken ship can be filled with the floating object 15 containing a hollow air body.

〔Effect of the invention〕

According to the present invention, a space in which gas can be sealed is created using the hull structure inside a sunken ship, gas is supplied and sealed inside the space, and the buoyancy generated by the gas is utilized. The present invention is an extremely useful method because it provides a salvage method that can easily float a sunken ship on the surface of the water or float it in water below the surface of the water, and then float the ship after moving it from the sunken location. It is.

[Brief explanation of the drawing]

FIG. 1 shows an Ili inside a sunken ship as an embodiment of the present invention.
A method is shown in which the gap between the hermetic breakdown parts of the shell structure is filled with an underwater curing polymeric material or a ceramic material to seal it, and gas is sealed inside to float the ship. Figure 2 shows the gap between the hermetic breakdown of the hull structure inside the sunken ship.
Figure 3 shows an example of a method for floating a ship by inserting and sealing an elastic object and filling gas inside. An example of a method of levitating a ship by inserting a membrane-like container having high strength and flexibility to seal the entire space and sealing gas inside is shown. Figure 4 shows how a freezing pipe is installed on the wall of a space where the airtightness of the hull structure inside a sunken ship has been broken, and a refrigerant is passed inside the freezing pipe to freeze water and create a sealing layer of ice. , shows an example of a method for levitating a ship by sealing gas inside it. Figure 5 shows how to fill the interior space of a sunken ship with gas and float the ship by sending a floating object filled with gas into the space where the airtightness of the hull structure inside the sunken ship has been broken. An example of how to do this is shown below. [Explanation of symbols] 1... Sunken ship, 2... Salvage ship, 3... Air compression device, 4... Air pipe, 5... Hull structure, 6... Passage,
7. Airtight space, 8. Filling sealing material, 9. Elastic material for sealing, 10. Membrane container, 11. Refrigeration device,
12-...Refrigerant liquid feeding pipe, 13...Freezing pipe, 14
... Frozen layer, 15 ... Floating object containing hollow air body, 16
...Floating object input container.

Claims (1)

[Claims] 1. In a sunken ship surfacing method in which gas is sealed inside the sunken ship and the ship itself becomes a floating object, a part or all of the space inside the hull structure of the sunken ship is made airtight. air from a salvage ship on the surface of the water directly into the airtight space of the sunken ship, or into the inside of the sunken ship's hull by supplying air from a gas generator using a chemical reaction installed inside the sunken ship's hull. Or, gas can be introduced into the hull structure of a sunken ship from a salvage vessel on the surface of the water without making part or all of the space inside the hull structure airtight. Enclosed hollow air bodiesBy using a method of enclosing gas inside the hull of a sunken ship by pumping a floating object, gas is sealed into the sunken ship to generate buoyancy, and the buoyancy is used to raise the hull of the sunken ship to the surface of the water. A surfacing and salvage method for a sunken ship, which is characterized in that the salvage work is carried out after the ship is moved from a sunken place by being floated above the water surface or suspended in water below the surface of the water. 2. Filling the gap in the airtight breakdown part of a part or all of the space of the hull structure inside the sunken ship with a filling sealing material using an underwater curing polymeric material or a ceramic material underwater;
In addition, in order to create an airtight space, sealants are sprayed or painted on partition walls, ceilings, floors, etc. to create an airtight structure, and then gas is sealed inside the airtight space to reduce the buoyancy caused by the gas. Use this to raise the hull above the water, or
Alternatively, the method for flotation and salvage of a sunken ship according to claim 1, characterized in that the salvage work is carried out after the ship is floated in water below the surface of the water and moved from the sunken site. 3. Filling the gap in the airtight breakdown part of a part or all of the space of the hull structure inside the sunken ship with an elastic material for sealing, and
The internal space of the hull structure is made airtight by completely inserting it into the gap and maintaining airtightness. Gas is sealed inside this airtight space, and the buoyancy generated by the gas is used to raise the hull above the water surface. The method for raising and salvaging a sunken ship according to claim 1, wherein the salvage work is carried out after the ship has been moved from a sunken place by being floated or suspended in water below the surface of the water. 4. Create an airtight space by inserting a large membrane-like container with sufficient strength and flexibility into part or all of the space in the hull structure where the airtightness inside the sunken ship has been destroyed, and then After sealing gas inside the space and using the buoyancy generated by the gas to raise the ship to the surface of the water or float it in the water below the surface of the water and move the ship from the sinking site, salvage work is carried out. 1. A method for resurfacing and salvaging a sunken ship as set forth in claim 1. 5. Lay a refrigeration pipe along the inner ceiling plate and walls of a part or all of the space inside the sunken ship where the airtightness of the hull structure has been destroyed, and install a refrigeration pipe into the refrigeration pipe from the salvaged ship.
A refrigerant of 0°C or lower is sent to freeze the liquid only at the periphery of the space, creating an airtight space surrounded by a frozen layer, and then filling the airtight space with gas to reduce the buoyant force. Claims characterized in that the salvage operation is carried out after the ship is moved from the sunken place by using the method to float the ship above the water surface or to float it in the water below the water surface. The method for resurfacing a sunken ship as described in paragraph 1. 6. Floating objects filled with hollow air bodies, such as balloon-shaped floating objects, ping-pong balls, etc., where part or all of the space in the hull structure inside the sunken ship is not specially airtight, and the space is filled with gas. By inserting a floating object or a capsule-like floating object, gas is retained in the interior space of a sunken ship,
The buoyant force generated by this gas is used to raise the hull of the sunken ship to the surface of the water, or to float it in the water below the surface of the water, and then the salvage work is carried out after the ship is moved from the sunken location. A method for raising and salvaging a sunken ship according to claim 1.