JPS59217820A - Mooring arrangement - Google Patents

Abstract

PURPOSE:To moor a ship with good efficiency by a simple means in which the first mooring pole to be coupled with the recession of a water floating structure and a guide rail for a gate to closely surround the floating structure is provided between the second mooring poles provided in mutually facing manner. CONSTITUTION:The first mooring pole 3 is coupled with a recession 2 provided in the end of a water floating structure 1, and the other end of the structure 1 is coupled between the second mooring poles 4 provided in mutually facing manner. A gate 8 is also provided along a guide rail 7 in a vertically movable manner. The movement of the structure 1 can thus be regulated by fenders 5, 5', 6, and 6' provided to the gate 8 and the mooring poles 3 and 4. Since the gate 8 moves slidably and vertically according to the variation in the tidal levels but does not follow great variation in draft by cargo work, the draft of the gate 8 can be kept constant.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device 1 for mooring a floating structure on water, such as an offshore petroleum storage tank, via a mooring column.

Generally, when mooring a floating structure to a mooring pole erected on the seabed, a mooring chain or mooring rope is used (1).
When a floating structure is converted to a force-absorbing type, the diameter of the mooring chains, etc. increases, and the number of chains increases, making them difficult to operate.Moreover, maintenance becomes necessary in response to changes in sea conditions and tank loading conditions. The problem is that it is cumbersome and large-scale.

The present invention aims to solve the above-mentioned problems, and aims to make it possible to efficiently and reliably moor a floating structure to a mooring column by a simple means that does not require a mooring chain or the like. The purpose is to provide a mooring device with

Therefore, the mooring device of the present invention includes a concave recess formed in the vertical direction at the end of the floating structure, a first mooring column erected on the seabed and engaged with the recess, and a mooring column of the structure. A second mooring pillar installed on the seabed facing both sides of the other end, and a gate equipped with an idle rail provided in the vertical direction of the second mooring pillar, which can close the above-mentioned structure. is provided so as to be movable up and down along the guide rail.

Hereinafter, a mooring device as an embodiment of the present invention will be explained with reference to the drawings. The attached drawing is a plan view showing the state in which the mooring device is used. is formed with a concave recess 2 in the vertical direction at one end, and the first
A mooring post 3 is provided at a position surrounded by the concave recess 2.

On both sides and one end of the mooring post 3, there are rubber 7
Enders (buffering materials) 5' and 6' are provided in a protruding manner so as to be able to come into contact with the inner surface of the recess 2 of the tank 1, respectively.

Also, on both sides of the other end of the tank 1 opposite to the recess 2, second mooring columns 4, 4 are erected on the seabed.
These mooring columns 4, 4 support both side surfaces of the tank 1 via respective rubber 7engoos 5.

Further, the mooring columns 4, 4 are provided with guide rails 7 for attaching gates in the vertical direction, and along the guide rails 7, the mooring posts 4, 4 are provided with gate mounting guide rails 7 that follow changes in the tide level within the range of upper and lower stoppers (not shown). A gate 8 is provided so that it can be raised and lowered.

Date 8 is constructed as a floating body equipped with a ballast tank that can be filled with water, and when installing it on guide rail 7, seawater is injected into the ballast tank inside it to sink gate 8, and then the above While draining water from the ballast tank, the lower stopper is fitted from below the released guide rail 7 and floated up.

Further, a rubber fender 6 is protruded from the surface of the gate 8 facing the tank 1 so as to be able to come into contact with the end surface of the tank 1.

Since the mooring device of the present invention is configured as described above,
The lateral movement of the tank 1, which oscillates under external force, is regulated by absorbing kinetic energy by each of the seven enders 5, 5'.

Also, the longitudinal movement of the tank 1 is for each 7 ender and 6.
6' can absorb and regulate kinetic energy.

In this way, the gate 8 as a floating body has 7 engines 6
This gate 8 has the mooring pillars 4, 4 built into the idle rail 7 and can slide vertically to follow the fluctuations in the tide level, but it also has the advantage of being able to restrain the tank 1 through cargo handling, etc. It does not follow the large change in hiccup due to the change in hiccup, and the hiccup on date 8 continues to maintain a constant state.

In addition, when pulling out the tank 1 in an emergency or for maintenance, the emergency plug installed at the gate 8, which serves as a floating tree, is opened, and seawater is injected into the ballast tank inside the date, causing it to sink. It is possible to release tank 1 from pillars 3 and 4.

In this way, according to the mooring device of the present invention, a floating structure can be moored efficiently and safely by the simple means of engaging a mooring column with a floating structure without using a mooring chain or the like. This method has the advantage that it can be carried out reliably, requires almost no maintenance, and can be moored for a long period of time.

[Brief explanation of the drawing]

The figure is a plan view showing a state in which a mooring device according to an embodiment of the present invention is used. 1. Tank as a floating structure on water, 2. Concave recess, 3. First mooring column, 4. Mooring column of pit 2, 5.5
' , 6.6'... 7 engu, 7... guide rail, 8 battle/date. Sub-Agent Patent Attorney Yoshihiko Iinuma

Claims (1)

[Claims] A concave recess formed vertically at the end of the floating structure; a first mooring column erected on the seabed and engaged with the recess; A second mooring pillar is installed upright, and a date equipment provided in the vertical direction of the second mooring pillar is provided with an idle rail, and the date equipment can be raised and lowered along the second mooring guide rail No. 2, which can enclose the above-mentioned structure. A mooring device, characterized in that it can be provided.