DE1431290C

DE1431290C - Anchor buoy for point-like anchoring of ships

Info

Publication number: DE1431290C
Authority: DE
Inventors: John William; Hopkins Kenneth William; London Ross
Original assignee: BP Tanker Co. Ltd., London
Publication date: 1972-11-09

Description

verankert, deren andere Enden an im Meeresboden 14 versenkt angeordneten Ankersteinen 16 befestigt sind.anchored, the other ends of which are attached to anchor stones 16 sunk in the seabed 14 are.

Die Ankerketten 12 sind so bemessen, daß sie die Ankerboje 11 entgegen ihrem Auftrieb nahezu eingetaucht halten, so daß sie unter Spannung bleiben. Durch diese Spannung wird der Verschleiß an den Ketten herabgesetzt. Gleichfalls wird die Möglichkeit, daß an ihnen schlagartige Spannungen auftreten, wenn die Ankerboje bei schlechtem Wetter hin und her geworfen wird, verringert.The anchor chains 12 are dimensioned so that they almost immersed the anchor buoy 11 against its buoyancy hold so that they remain under tension. This tension reduces the wear and tear on the Chains lowered. Likewise, the possibility of sudden stresses occurring in them is if the anchor buoy is thrown back and forth in bad weather, reduced.

In F i g. 2 ist die in F i g. 1 dargestellte Ankerboje 11 im vergrößerten Maßstab und im einzelnen gezeigt. Die Boje besitzt eine zylindrische Auftriebskammer 17 mit hohlen Führungskörpern 18, so daß sich die Hälften 12 a, 12 b und 12 c der Ankerketten von den Augplatten 19, an denen sie mittels Schäkeln od. dgl. befestigt sind, abwärts zu dem am Meeresboden befindlichen Ankerstein 13 erstrecken können.In Fig. 2 is the one in FIG. 1 shown anchor buoy 11 on an enlarged scale and shown in detail. The buoy has a cylindrical buoyancy chamber 17 with hollow guide bodies 18 so that the halves 12 a, 12 b and 12 c of the anchor chains from the eye plates 19, to which they are attached by means of shackles or the like, down to the one on the seabed Anchor stone 13 can extend.

Die Augplatten 19 sind in gleichem Abstand um ein in der Mitte angeordnetes Rohr 20 herum verteilt, um eine aufrechte Lage der Boje zu gewährleisten und werden durch einen konischen, in F i g. 2 teilweise dargestellten Körper 21 umschlossen. Dieser Körper 21 ist mit nicht dargestellten Durchtrittsöffnungen versehen, um den Zutritt zu den Ankerketten 12 zu gewährleisten.The eye plates 19 are evenly spaced around a tube 20 arranged in the middle, to ensure an upright position of the buoy and are by a conical, in F i g. 2 partially body 21 shown enclosed. This body 21 is provided with through openings, not shown provided to ensure access to the anchor chains 12.

Das nur zum Teil dargestellte Rohr 20 erstreckt sich vertikal über die ganze Länge der Boje und ist mit einem biegsamen, ebenfalls nicht dargestellten Rohr verbunden, welches sich entlang des Meeresbodens zum Festland erstreckt.The only partially shown tube 20 extends vertically over the entire length of the buoy and is connected to a flexible tube, also not shown, which extends along the seabed extends to the mainland.

Eine Festmache- und Flüssigkeitsfördervorrichtung 23 ist an einer Büchse 24 befestigt, die drehbar am Rohr 20 gelagert ist.A mooring and fluid handling device 23 is attached to a sleeve 24 which is rotatably mounted on the tube 20.

Die Vorrichtung 23 weist ein Teil 28 in Form eines umgekehrten Y auf, dessen Arme schwenkbar an der Büchse 24 befestigt sind. Das obere Ende dieses Teiles ist ringförmig ausgeführt und dient zum Festmachen eines Schiffes.The device 23 has a part 28 in the shape of an inverted Y, the arms of which are pivotable on the Bushing 24 are attached. The upper end of this part is made ring-shaped and is used for mooring of a ship.

In F i g. 3 ist der Ankerstern 13 im vergrößerten Maßstab und in Einzelheiten dargestellt. Der Ankerstein 13 ist mit mehreren Augen 29 versehen, die zur Aufnahme der zusätzlichen Verankerungsmittel 15 dienen, so daß er am Meeresboden verankert werden kann. Darüber hinaus weist er z. B. zwei Ausnehmungen 30 auf, durch welche die Ankerketten des Auftriebskörpers hindurchgeführt sind.In Fig. 3 shows the anchor star 13 on an enlarged scale and in detail. The anchor stone 13 is provided with several eyes 29 which are used to receive the additional anchoring means 15 serve so that it can be anchored to the seabed. In addition, he has z. B. two recesses 30 through which the anchor chains of the float are passed.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 platform lead. The anchor stones are for their part patent claims: defined by additional chains lying on the seabed, which lead to anchoring means. The attachment of the anchor chains to the

1. Anchor buoy for point-like anchoring 5 anchor stones are made individually.

of ships, in particular tankers, that are involved in the anchorage of ships

an anchor lying on the seabed known to close a closed endless anchor chain Stone through at least one anchor chain that is shortened through an opening in the anchor Length as the distance that freely swims through and also around two bollards on the ship corresponding to the buoy from the anchor stone, is led around. The anchor chain is so long is tied, with at least one additional that the position of the ship to the anchor not firmly attacking and also on the sea. can be laid. Pedal when replacing the anchor chain anchoring means anchored to the ground no difficulties because of the is seen, characterized in that the anchor is properly pulled onto the ship that the anchor chain (12) can be arched by a 15, so that the renewal of the chain over curved, tubular recess (30) in the water nothing stands in the way.

Anchor stone (13), whose. Openings both according to the attachment of underwater islands to

show above, guided and anchor ropes again on the buoy body is known. Here the anchor ropes (11) are attached, and that, as an additional tension, of course, they are taut,
Anchoring means arranged in a star shape, in side- ao_ The object of the present invention is to develop an anchor buoy of the type mentioned above that is attached to the anchor stone (13) in such a way that the anchor chain can be easily (16) anchor ropes anchored in the seabed (14) can be replaced. This task will serve (15). according to the invention solved in that the anchor chain

2. Anchor buoy according to claim 1, characterized in that it is characterized by an arcuately curved, tube-like feature, that for their anchoring several recess in the anchor stone, the openings of which both anchor chains (12a, 126, 12 c) are provided, point upwards, out and again on the buoys for whose leadership is fixed by the anchor stone (13) body, and that as an additional Verdieser with separated arched anchoring means arranged in a star shape, in laterally curved, tubular recesses (30) 30 attached to the anchor stone attacking eyes, respectively is provided. by means of an anchor stone. ver

anchored anchor ropes are used.

In the anchor buoy according to the invention, the anchor chain can be replaced by using

35 one end is detached from the buoy body, while one end of the new chain with the detached one Connected to the end of the other chain and pulled through the recess in the anchor stone will. In this way the old chain becomes complete

The invention relates to an anchor buoy for point 40 hoisted out of the water, while the new chain-shaped anchoring of ships, in particular, is used. This then only needs with tankers, which are anchored by at least one anchor stone with an anchor stone lying on the seabed at both ends of the buoy body. Any measures that would have to be carried out under the water chain of shorter length than the distance of the free are not required,
45 In an advantageous embodiment of the invention, there is at least one additional anchor chain that engages the anchor buoy Hch and also several anchor chains are provided for their anchored anchoring means is. Guided tour through the anchor stone with vpnein-

In the case of anchor buoys of this type, it is known to have the strands separated in an arcuately curved pipe support is provided by means of a chain on one on the 50-like recesses. This will Make anchor stone lying on the seabed, which double secures the anchor buoy. the in turn, via another chain on one in the tensile forces are also distributed evenly The anchor is fixed to the ground. The buoyancy of all the chains involved.

the buoy and the weight of the anchor stone are so The invention is described below with reference

coordinated that the buoy would take the anchor stone 55 on the figures at a preferred Ausbei rising water level is able to be explained in more detail without the management example. It shows
to submerge fully under the surface of the water. In larger Fig. 1 one by an anchor stone with additional

External changes in the water level changed the anchoring means attacking it at the sea itself thus the position of the buoy, because the anchor stone is attached to the floor of the anchor buoy,

can settle again at another point 60 Fig. 2 is a front view, partly in section, than the one from whom he was lifted. Except for an anchor buoy and

This includes repairs to the anchor chain or Aus F i g. 3 a side view of the anchor stone,

changes of the anchor chain only with diving assistance Fig. 1 shows an anchor buoy 11, which by two possible, connected anchor chains, which hold the anchor

It is also known to penetrate the anchorage of stone 13 that is moored, two halves of rine training platforms at a specific fixed location 12a and 12b of an anchor chain and one half 12c of several anchor stones, the other anchor chain being shown. The hook from each of which two anchor chains to the exercise stone 13 is on the sea floor 14 by anchor ropes 15