JPS6337759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connection device for a cargo handling hose, and more particularly, a floating hose that is floated on the sea surface and is connected to a cargo handling pipe of a ship each time to transfer oil or slurry. This invention relates to a connection device for cargo handling hoses such as the following.

This type of floating hose is connected to a single point mooring buoy moored offshore and floats on the sea surface, and when carrying out cargo handling work,
Conventionally, a floating hose is pulled up onto a ship and connected to a ship's cargo handling pipe. However, as ships become larger and cargo handling time is constrained, higher efficiency is required for cargo handling operations. The work is extremely difficult not only in bad weather, but also in good and calm times.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a method and device for connecting cargo hoses that are extremely easy to operate.

A cargo-handling hose connection device according to the present invention is a device for connecting a cargo-handling hose having a tip portion provided with a guide that is flared toward the base end to a cargo-handling pipe of a ship. A vertical guide hole is formed in the ship's side section from the upper deck to below the light load water line in a watertight manner, and an opening in the wall on the side shell side of this guide hole extends from below the light load water line to above the full load water line. A sealed door is provided to open and close this opening, and a flexible hose is connected to the ship's cargo handling pipe, and a flexible hose is connected to the tip of the flexible hose and is attached to the tip of the horizontal section with a tapered shape extending outward. A connecting pipe in which a cargo-handling hose connecting pipe is provided with a guide that opens at the guide hole, and the cargo-handling hose connecting pipe is raised and lowered at least between a light load water line and a full load water line by a cable passed through the guide hole. The cargo handling hose can be guided by connecting the lifting device, the guide hole, and the pulling cable introduction part of the horizontal part of the cargo handling hose connection pipe into the horizontal part, pulling it out from the guide, and connecting it to the tip of the cargo handling hose and pulling it toward the ship side. A cargo-handling hose fixing device is provided above the guide hole for pulling the cargo-handling hose into the guide of the cargo-handling hose connecting pipe and fixing the tip of the cargo-handling hose to the tip of the cargo-handling hose connecting pipe.
A tube fixed to the outer surface of the horizontal part of the cargo handling hose connecting pipe, a rubber fitted inside this tube and through which the towing cable is passed, and a tube that presses against this rubber to seal the gap between the rubber and the towing cable. It is equipped with a push plate.

According to the cargo-handling hose coupling device of the present invention, the toll-in cable of the cargo-handling hose fixing device, which is guided from the toll-cable introduction part into the horizontal part of the cargo-handling hose connecting pipe and pulled out from the guide, is connected to the tip of the cargo-handling hose near the sea surface on the side of the ship. By simply connecting the cargo handling hose to the ship's side and pulling it into the ship's side, the connection between the cargo handling hose and the cargo handling hose connecting pipe, that is, the connection between the cargo handling hose and the ship's cargo handling pipe can be easily and semi-automatically performed. In addition, after cargo handling work is completed, the coupling device can be easily retracted by simply sealing the opening on the ship's side shell side of the guide hole with an airtight door, which does not interfere with navigation. .

Embodiments of the present invention will be described below with reference to the drawings.

Although not shown, the cargo handling hose (floating hose) 1 has its base end connected to the tip of a pipe rotatably attached to a single point mooring buoy, and is connected to the sea surface A.
Floating on. A guide 2 that opens in a flaring manner toward the base end is fixed to the outside of the tip of the cargo handling hose 1, and eye plates 3 for connecting the lead cable are fixed to the top and bottom of the same inner surface. Further, a gate valve 5 and a float 6, which are opened and closed by a hydraulic cylinder 4, are attached to a portion of the cargo handling hose 1 slightly closer to the base end than the guide 2. A hydraulic socket 7 is fixed to the guide 2 side surface of the valve 5 in parallel with the cargo handling hose 1, and two holes 8 communicating with each oil chamber of the hydraulic cylinder 4 are formed in the socket 7. and,
When the cargo handling hose 1 is not in use, the valve 5 is closed and nothing is connected to the tip of the cargo handling hose 1 and the socket 7.

The ship 10 is provided with one or more sets of cargo hose connection devices as described below, as required.

That is, a vertical guide hole 12 with a rectangular horizontal cross section extending from the upper deck 11 to below the light water line B is formed in the side part of the ship 10 in a watertight manner, and on the wall of this hole 12 on the side shell plating 13 side, A rectangular opening 14 is formed from the lower end of the hole 12 to above the full load water line C.
Three inner wall surfaces 15 of the hole 12 excluding the side of the ship side outer plate 13
A vertical guide rail 16 is provided in the hole 1.
A lift box 17 fitted into the rails 2 is attached to these rails 16 via a plurality of guide rollers 18 so as to be movable up and down.

An L-shaped cargo hose connection pipe 1 is installed in the elevator box 17.
9 is fixed, and the lower end of a vertical pipe 22 is connected to the upper end of the vertical connecting pipe 20 via a gate valve 21. One end of a flexible hose 23 is connected to the upper end of the vertical pipe 22, and the other end of the flexible hose 23 is connected to a cargo handling pipe (not shown) of the ship 10. A connecting pipe lifting device 2 is mounted on the upper part of a davit 24 fixed on the upper deck 11 so as to straddle the guide hole 12.
5 and the cargo handling hose fixing device 26 are provided, and the cable 29 let out from the winch 27 of the lifting device 25 connects to the connecting flange portion 3 of the vertical pipe 22 and the flexible hose 23.
Connected to 0. And this winch part 2
7 raises and lowers the box 17 in the guide hole 12, and when the box 17 descends to the lower end of the hole 12, that is, to the lower end of the opening 14, the connecting pipe horizontal portion 31 facing outside of the ship 10 When the box 17 is located slightly below the heavy load water line B and rises to the upper end of the opening 14, the connecting pipe horizontal portion 31 is located slightly above the full load water line C, and the connecting flange portion 3
0 is located at the top within hole 12.

A guide 32 is fixed to the distal end of the cargo-handling hose connecting pipe horizontal portion 31, and is opened in a loose shape toward the outside of the ship 10, corresponding to the guide 2 of the cargo-handling hose 1. A stopper 39 is fixed to a portion closer to the inner surface of the guide 32, and an annular inflatable seal device 33 is attached to a portion closer to the entrance. A hydraulic cylinder 34 for separating the cargo hose is fixed to a portion immediately below the guide 32 of the elevator box 17 in parallel with the horizontal portion 31 of the connecting pipe, and from this cylinder 34 the ship 10
A push plate 36 is fixed to the tip of the piston rod 35 that protrudes outward. Elevating box 1
A hydraulic plug 37 corresponding to the socket 7 of the cargo handling hose 1 is installed immediately below the hydraulic cylinder 34 of 7.
is fixed parallel to the horizontal portion 31 of the connecting pipe. This plug 37 has two hydraulic pipes 38 that protrude toward the outside of the ship 10 in correspondence with the holes 8 of the socket 7.
are fixed, and these pipes 38 are connected to the hydraulic system of the ship 10 by suitable means such as a hydraulic pipe (not shown) running along the connecting pipe 19, the vertical pipe 22, and the flexible hose 23. ing. Note that the guide 32, the hydraulic pipe 38 of the plug 37, and the tip of the piston rod 35 of the retracted hydraulic cylinder 34 are all located inside the ship 10 from the opening 14.

The cargo-handling hose fixing device 26 serves both to draw in and fix the cargo-handling hose 1 to the connecting pipe 19,
On both upper and lower surfaces of the horizontal portion 31 of the connecting pipe, pulling cable introducing portions 41 for guiding the pulling cable 40 let out from the two winches 28 constituting the fixing device 26 into the interior of the connecting pipe 19 are provided. The upper cable lead-in section 41 has a structure as shown in detail in FIGS. 4 and 5. That is, the lower ends of vertical cylinders 42 are fixed to the outer surface of the horizontal part 31 in a watertight manner, and a through hole 44 larger than the outer diameter of the lead-in cable 40 is bored in the center of the top wall 43 of the cylinder 42, so that the vertical cylinders 42 are close to each other. A pair of guide rollers 45 are arranged directly above this hole 44. A through hole 46 that is slightly larger than the outer diameter of the lead-in cable 40 is drilled in the upper surface of the horizontal part 31 corresponding to the center of the cylinder 42, and the part that includes this hole 46 swells slightly upward and protrudes into the cylinder 42. Inside the horizontal part 31
A pulley 47 is arranged that can freely rotate around a horizontal axis perpendicular to the horizontal axis. A stepped cylindrical rubber 48 is fitted inside the cylinder 42, and a vertical through hole 49 is bored in the center of the rubber 48, which is approximately equal to or slightly smaller than the outer diameter of the lead-in cable 40. . The lower outer peripheral surface of the rubber 48 is cylindrical 4
The outer diameter of the upper part of the rubber 48 is slightly smaller than the inner diameter of the cylinder 42 . A horizontal portion 31 is provided on the outer surface of the upper part of the peripheral wall 50 of the cylinder 42.
A pair of hydraulic cylinders 51 parallel to the cylinder 48 are fixed in a facing manner, and the upper outer peripheral surface of the rubber 48 and the peripheral wall 50 are attached to the tip of the piston rod 52 of each cylinder 51 that penetrates the peripheral wall 50 and protrudes into the cylinder 42. A push plate 53 having an arc-shaped horizontal section is fixed between the inner surface and the inner surface. In addition, there is a hole 4 at the top of the rubber 48.
A charge 54 passing through the center of the cylinder 9 and perpendicular to the hydraulic cylinder 51 is inserted. Lower lead cable introduction part 4
1 has a similar structure to the upper one and is arranged vertically symmetrically thereto. And the fixing device 26
The pull line 40 paid out from one winch 28 of
is guided from the top surface of the elevator box 17 directly above the upper introduction part 41, and then passes between the pair of guide rollers 45, the hole 44 of the cylinder 42, the hole 49 of the rubber 48, and the hole of the horizontal part 31 of the connecting pipe. 46 into the horizontal section 31 and hung on a pulley 47. Further, the pull cable 40 let out from the other winch 28 of the fixing device 26 is guided from the upper surface of the elevator box 17 to just below the lower introduction part 41 by an appropriate means such as a pulley 55, and then Similarly, it is guided into the horizontal portion 31 of the connecting pipe.

Although not shown, a lift-type closed door is provided on the wall of the guide hole 12 on the side of the ship's side shell 13.
When the cargo handling hose 1 is not performing cargo handling work, such as during navigation, the opening 14 is sealed by this door. At this time, the gate valve 21 of the connecting pipe 19
is closed, the sealing device 33 is retracted, and the piston rod 35 of the hydraulic cylinder 34 for removing the cargo hose is in the retracted position. In addition, elevator box 1
7 is located at an appropriate position within the guide hole 12, for example at the lower end, and the tips of the two lead-in cables 40 are located within the horizontal portion 31 of the connecting pipe.

When carrying out cargo handling work, the tip of the cargo handling hose 1 is connected to the connecting pipe 19 in the following manner.

That is, first, the door of the opening 14 is opened, and before or after this, the elevator box 17 is moved by the elevator device 25 so that the horizontal portion 31 of the connecting pipe comes to the sea level A. Note that when the box 17 is raised or lowered, the length of the lead-in cable 40 is adjusted accordingly. When the opening 14 is opened, seawater will enter the lower part of the guide hole 12, but since the hole 12 is formed in a watertight manner, there is no risk of seawater entering into the hull. Next, the two lead-in cables 40 are pulled out from the connecting pipe horizontal part 31 by a work boat (not shown) and connected to the eye plate 3 of the cargo handling hose 1, and the lead-in cables 40 are connected to the winch 2.
8. Gradually wind it up. As a result, the guide 2 of the cargo handling hose 1 is drawn into the guide 32 of the connecting pipe 19, and the hydraulic pipe 38 of the plug 37
enters the hole 8 of the socket 7, and the cargo hose 1 eventually comes into contact with the stopper 39 of the connecting pipe 19 and stops. When pulling out or retracting the towing cable 40, the push plate 53 is opened by the cylinder 51 of the towing cable introduction part 41 and separated from the rubber 48. In this way, the lead-in cable 40 can freely move through the introduction section 41. When the cargo handling hose 1 is pulled into the guide 32 of the connecting pipe 19 and stopped, the sealing device 33 is expanded by compressed air to bring it into pressure contact with the guide 2 of the cargo handling hose 1, and the push plate of the pulling line introduction part 41 is 53 is closed and pressed against the upper part of the rubber 48. In this way, the guides 2 and 32 are sealed by the pull-in cable 40 and the seal device 33, and the rubber 4 is sealed by the push plate 53.
8 and the pull cable 40, the pull cable introduction part 41 is sealed, and the cargo handling hose 1 is connected to the connecting pipe 1.
9, connected to the cargo handling pipe of the ship 10 via a vertical pipe 22 and a flexible hose 23;

Once the cargo handling hose 1 is connected in this manner, the gate valves 5 and 21 are opened by the hydraulic system of the ship 10, and cargo handling work is carried out in the same manner as in the conventional art. When carrying out cargo handling work, the water level of the ship 10 changes, so the lift box 17 is always placed so that the horizontal part 31 of the connecting pipe is at sea level A.
move. In this way, no abnormal force is applied to the connection between the cargo hose 1 floating on the sea surface A and the connection pipe 19.

When disconnecting the cargo handling hose 1, first close the gate valves 5 and 21, and then press the push plate 53 of the cable introduction part 41.
At the same time, the sealing device 33 is retracted and the piston rod 3 of the hydraulic cylinder 34 for removing the cargo hose is opened.
5 and push the gate valve 5 portion of the cargo handling hose 1 outward. As a result, the guide 2 of the cargo-handling hose 1 comes off from the guide 32 of the connecting pipe 19, and the hydraulic pipe 38 of the plug 37 comes off from the socket 7, so that the tip of the cargo-handling hose 1 floats independently on the sea surface A again. Once the cargo handling hose 1 is disconnected in this way, the piston rod 35 of the hydraulic cylinder 34
At the same time, the lead-in cable 40 is removed from the eye plate and recovered in the connecting pipe horizontal section 31, and the opening 14 is sealed with a door.

Cargo handling hose connection pipe 19 and its lifting device 25
The configuration is not limited to that of the above embodiment, and can be modified as appropriate. Further, the configuration of the cargo handling hose fixing device 26 is not limited to that of the above embodiment, and can be modified as appropriate. Further, the opening/closing operation of the gate valve 5 of the cargo handling hose 1 may be performed from a work boat or the like.
Compressed air or the like may also be used.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a vertical sectional view of the coupling device, FIG. 2 is a sectional view taken along the line shown in FIG. 1, and FIG. 3 is an enlarged view of the main part of FIG. FIG. 4 is an enlarged cross-sectional view of the main part of FIG. 3, and FIG. 5 is a cross-sectional view taken along the line shown in FIG. 4. 1...Cargo handling hose, 2...Guide, 10...
Ship, 11... Upper deck, 12... Guide hole, 13...
Ship side outer plate, 14...opening, 19...cargo hose connection pipe, 23...flexible hose, 25...lifting device,
26... Cargo hose fixing device, 29... Cable, 31
...Horizontal part, 32...Guide, 40...Leading cable,
41... Leading rope introduction part, 42... Cylinder, 48...
Rubber, 53... Push plate, C... Full load water line.

Claims (1)

[Scope of Claims] 1. A device for connecting a cargo handling hose 1, which has a guide 2 at its distal end with a guide 2 that is open toward the proximal end, to a cargo handling pipe of a ship 10, comprising: Light cargo water line B is installed on the side of the ship from the upper deck 11.
A vertical guide hole 12 extending downward is formed in a watertight manner, and an opening 14 extending from below the light load water line B to above the full load water line C is formed on the wall of the guide hole 12 on the side shell plate 13 side. A sealed door that opens and closes is provided, and a flexible hose 23 connected to a cargo handling pipe of the ship 10 and a flexible hose 23 connected to the tip of the flexible hose 23 that extends outward to the tip of the horizontal section 31 are provided. A cargo hose connecting pipe 19 provided with a guide 32 that opens in the shape of
is provided in the guide hole 12 and lifts and lowers the cargo handling hose connecting pipe 19 between at least the light load water line B and the full load water line C by means of a cable 29 passed through the guide hole 12; Hole 12 and horizontal portion 31 of cargo hose connection pipe 19 to lead-in cable introduction portion 4
The guide 2 of the cargo-handling hose 1 is connected to the guide 32 of the cargo-handling hose connecting pipe 19 by connecting the lead-in cable 40 guided into the horizontal part 31 from the guide 31 and pulled out from the guide 32 to the tip of the cargo-handling hose 1 and drawn into the ship 10 side. A cargo-handling hose fixing device 26 is provided above the guide hole 12 for pulling the cargo-handling hose 1 into the pipe and fixing the distal end of the cargo-handling hose 1 to the distal end of the cargo-handling hose connecting pipe 19. A tube 42 fixed to the outer surface of the horizontal portion 31 of the connecting pipe 19, a rubber 48 fitted into the tube 42 and through which the pull-in cable 40 is passed, and a rubber 48 that is in pressure contact with the rubber 48 and the pull-in cable. A cargo handling hose connection device comprising a push plate 53 for sealing between 40 and 40.