A wind protection device and method for a water drum of a ship

Abstract

The present application relates to a kind of wind prevention device and method of ship water drum, including the bitt and chock of installation on ship, wind prevention is combined by anchor chain and steel wire rope to water drum, one end of steel wire rope is connected with the bitt of ship body, the other end is connected with water drum mooring ring;Anchor chain one end is fixed on the chain stopper of ship body, the other end is connected with water drum mooring ring.The present application first, wind prevention capacity can be greatly improved when water drum is combined by anchor chain and steel wire rope, only a single steel wire rope or a single anchor chain is used;Second, anchor chain is more relaxed than steel wire rope, steel wire rope is deformed under stress until the length is consistent with anchor chain, and then anchor chain starts to bear stress, by setting appropriate steel wire rope relaxation length, steel wire rope can bear larger part load to protect anchor chain, effectively avoid producing adverse deformation;Third, when steel wire rope or anchor chain breaks in extreme situation, the remaining anchor chain or steel wire rope can continue to limit ship movement.

Description

Technical Field

[0001] This invention relates to a ship mooring windproof device at a dock, and more particularly to a ship mooring water drum windproof (or typhoonproof) device and method. Background Technology

[0002] Ships can generally employ various wind protection methods, including dock mooring, water drum mooring, top-mounted wind protection, and motorized wind protection. Among these, water drum mooring is widely used due to its advantages such as not occupying dock resources, applicability to vessels of all sizes, and relatively simple operation. Water drum mooring typically involves attaching one end of a steel wire rope or anchor chain to the ship, and the other end passing through the guide hole at the bow and securing it to the water drum.

[0003] In existing methods of mooring water drums, a single wire rope or anchor chain is generally used to connect the vessel to the water drum. This method has the following main disadvantages: First, it is limited by the overall resources of the vessel, especially for small vessels, where the breaking load of a single wire rope or anchor chain is small and its wind resistance is poor. Second, the deformation of the anchor chain after being subjected to wind force can affect other functions of the vessel. Third, in extreme cases, there is no backup means to restrict the vessel's movement when the wire rope or anchor chain breaks, which is quite dangerous. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a ship mooring drum for wind (or typhoon) protection and a method thereof. The mooring drum is made of a combination of anchor chain and steel wire rope, which can significantly improve the ship's wind protection capability. On the other hand, the deformation of the steel wire rope can effectively prevent the anchor chain from deforming. In addition, it can continue to restrict the ship's movement after the steel wire rope or anchor chain breaks, thus buying time for emergency response.

[0005] To achieve the above objectives, the technical solution of the present invention is: a ship mooring drum windproof device, comprising a bollard and a guide hole installed on the ship, using a combination of anchor chain and wire rope to moor the water drum for windproofing, one end of the wire rope being connected to the bollard on the hull, and the other end being connected to the mooring ring of the water drum; one end of the anchor chain being fixed to the chain catcher on the hull, and the other end being connected to the mooring ring of the water drum.

[0006] Furthermore, one end of the wire rope is connected to the mooring bollard on the hull via a rope loop, and the other end is connected to the mooring ring of the water drum via a shackle.

[0007] Furthermore, the anchor chain is connected to the water drum mooring ring via a shackle.

[0008] Furthermore, the slack length of the anchor chain is less than 2% of the length of the wire rope extending out of the hull, in order to avoid an excessive difference in stress between the wire rope and the anchor chain.

[0009] Furthermore, the anchor chain and wire rope must not be tangled to achieve a good windproof effect.

[0010] Furthermore, the anchor chain is equipped with chain shackles, swivels, enlarged chain links, and shackles at both ends.

[0011] Furthermore, one end of the anchor chain is connected to the chain shackle and the enlarged chain link to form a closed loop and is then fitted onto the mooring bollard, while the other end is connected to the water drum mooring ring via a shackle.

[0012] A method for preventing wind damage by using a ship's mooring water drum, comprising the following steps:

[0013] (1) Navigate the vessel to the vicinity of the water drum, with the bow of the vessel facing the water drum;

[0014] (2) Take out the windproof steel wire rope, put one end on the ship's mooring bollard, and lead the other end out of the hull through the bow guide hole;

[0015] (3) Separate the ship's anchor chain from the anchor and add a shackle to the free end of the anchor chain and lead it out of the hull through the cable guide hole;

[0016] (4) Connect the steel wire rope and anchor chain leading out of the hull to the water drum;

[0017] (5) The ship slowly reverses, so that the wire rope and anchor chain are gradually pulled out from the guide hole until the wire rope is basically tensioned.

[0018] (6) Continue to release the anchor chain to a suitable length, keeping the anchor chain slack within the range from the cable guide hole to the water drum, close the chain stopper and fix the anchor chain.

[0019] (7) Complete the windproof scheme for the anchor chain and wire rope combination water drum.

[0020] Furthermore, when a ship is not equipped with a chain catcher or anchor chain, an alternative anchor chain can be added to replace the anchor chain.

[0021] Furthermore, the alternative anchor chain is equipped with chain shackles, swivels, enlarged chain links, and shackles at both ends. One end is connected to the water drum mooring ring via a shackle, and the other end connects the chain shackle and the enlarged chain link to form a closed loop, which is then fitted onto the bollard.

[0022] The present invention has the following advantages or beneficial effects:

[0023] First, using a combination of anchor chain and wire rope to moor the water drum can significantly improve the wind resistance when using only a single wire rope or anchor chain. Second, the anchor chain is slacker than the wire rope. The wire rope deforms under stress until its length matches that of the anchor chain, after which the anchor chain begins to bear stress. By setting an appropriate slack length for the wire rope, the wire rope can bear a larger portion of the load to protect the anchor chain and effectively prevent adverse deformation. Third, in extreme situations where the wire rope or anchor chain breaks, the remaining anchor chain or wire rope can continue to restrict the ship's movement. Attached Figure Description

[0024] Figure 1 This is a side view of the ship water-blowing windproof (or typhoonproof) device and method of the present invention;

[0025] Figure 2 This is a top view of the ship water-cooled windproof (or typhoonproof) device and method of the present invention;

[0026] Figure 3 Front view of the connection between the wire rope and the cable bollard and water drum;

[0027] Figure 4 Top view of the connection between the wire rope and the cable bollard and water drum;

[0028] Figure 5 A schematic diagram showing the connection between the anchor chain, chain stopper, and water drum;

[0029] Figure 6 A schematic diagram of the components used to replace the anchor chain;

[0030] Figure 7 A schematic diagram showing the connection between the anchor chain, the bollard, and the water drum. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] like Figures 1 to 5 As shown, a ship is equipped with a water drum for wind protection (or typhoon protection). The ship 1 is equipped with a bollard 11 and a guide hole 12. The water drum is secured by a combination of anchor chain 4 and steel wire rope 3. One end of the steel wire rope 3 is connected to the bollard 11 on the hull by a rope loop 31, and the other end is connected to the water drum mooring ring 21 by a collar 32 and a shackle 33. One end of the anchor chain 4 is fixed to the chain catcher 13 on the hull, and the other end is connected to the water drum mooring ring 21 by a shackle 42.

[0033] Preferably, to avoid an excessive difference in stress between the wire rope 3 and the anchor chain, the slack length of the anchor chain 4 should be less than 2% of the length of the wire rope 3 extending out of the hull.

[0034] Preferably, to achieve better wind protection, the anchor chain 4 should be kept away from the wire rope 3 as much as possible.

[0035] Preferably, the anchor chain is equipped with chain shackles, swivels, enlarged chain links, and other shackles at both ends, see [link to anchor chain]. Figure 6 , 7.

[0036] Preferably, one end of the anchor chain is connected to the chain shackle and the enlarged chain link to form a closed loop and is then fitted onto the bollard, while the other end is connected to the water drum mooring ring via a shackle.

[0037] A method for securing a ship's water drum for wind (or typhoon) protection, using a combination of anchor chains and wire ropes, is described below:

[0038] (1) Navigate the vessel to the vicinity of the water drum, with the bow of the vessel facing the water drum;

[0039] (2) Take out the windproof steel wire rope, put one end on the ship's mooring bollard, and lead the other end out of the hull through the bow guide hole;

[0040] (3) Separate the ship's anchor chain from the anchor and add a shackle to the free end of the anchor chain and lead it out of the hull through the cable guide hole;

[0041] (4) Connect the steel wire rope and anchor chain leading out of the hull to the water drum;

[0042] (5) The ship slowly reverses, so that the wire rope and anchor chain are gradually pulled out from the guide hole until the wire rope is basically tensioned.

[0043] (6) Continue to release the anchor chain to a suitable length, keeping the anchor chain slack within the range from the cable guide hole to the water drum, close the chain stopper and fix the anchor chain.

[0044] (7) The anchor chain and wire rope combination system water drum windproof scheme has been completed.

[0045] Example 1:

[0046] like Figures 1 to 5 As shown, a method for mooring a water drum for wind (or typhoon) protection on a ship is described. The ship 1 is equipped with bollards 11 and guide holes 12. It should be noted that this wind protection method includes using an anchor chain 4 and a steel wire rope 3 to moor the water drum 2 for wind protection. The steps are as follows:

[0047] (1) Navigate vessel 1 to the vicinity of water drum 2, so that the bow of the vessel faces water drum 2;

[0048] (2) Take out the windproof steel wire rope 3, put one end of the rope loop 31 on the mooring bollard 11, and lead the other end of the loop 32 and shackle 33 out of the hull through the bow guide hole 12.

[0049] (3) Disassemble the anchor chain 4 at the front end of the chain stopper 13, and the anchor chain is divided into two sections; open the chain stopper 13, add a shackle 42 to the end of the anchor chain 4 near the chain stopper 13 and lead it out of the hull through the guide cable hole 12.

[0050] (4) Connect the wire rope shackle 33 and anchor chain shackle 42 that are led out of the hull to the water drum mooring ring 21;

[0051] (5) Ship 1 slowly reverses, so that the wire rope 3 and anchor chain 4 are gradually pulled out from the guide hole 12 until the wire rope 3 is basically tensioned.

[0052] (6) Continue to release the anchor chain 4 to a suitable length by anchor winch or manually, so that the anchor chain 4 remains loose within the range from the cable guide hole 12 to the water drum 2, and then close the chain stopper 13 to fix the anchor chain 4.

[0053] Example 2:

[0054] like Figure 6 As shown in Figure 7, if the ship is not equipped with chain catcher 13, anchor chain 4, etc., it can be replaced by an alternative anchor chain 5. The alternative anchor chain 5 is equipped with chain shackles 51, swivels 52, enlarged chain links 53, and shackles 54 at both ends. One end is connected to the water drum mooring ring 21 through the shackle 54, and the other end is connected to the chain shackle 51 and the enlarged chain link 53 to form a closed loop, which is then fitted onto the bollard 11. The rest is the same as in Embodiment 1.

[0055] The above embodiments are merely illustrative of the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made based on the essence of the content of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for preventing wind damage to a ship using a water drum mooring system, comprising a bollard and a guide hole installed on the ship, and using a combination of anchor chain and wire rope for wind protection. One end of the wire rope is connected to the bollard on the hull, and the other end is connected to the water drum mooring ring; one end of the anchor chain is fixed to the chain catcher on the hull, and the other end is connected to the water drum mooring ring. The method is characterized in that... The steps of this method are as follows: (1) Navigate the vessel to the vicinity of the water drum, with the bow of the vessel facing the water drum; (2) Take out the windproof steel wire rope, put one end on the ship's mooring bollard, and lead the other end out of the hull through the bow guide hole; (3) Separate the ship's anchor chain from the anchor, and add a shackle to the free end of the anchor chain and lead it out of the hull through the guide hole; (4) Connect the steel wire rope and anchor chain leading out of the hull to the water drum; (5) The ship reverses slowly, so that the wire rope and anchor chain are gradually pulled out from the guide hole until the wire rope is basically tensioned; (6) Continue to release the anchor chain to a suitable length, keeping the anchor chain slack within the range from the guide hole to the water drum, close the chain stopper and fix the anchor chain; (7) Complete the water drum windproof scheme for the combination of anchor chain and wire rope.

2. The method for preventing wind damage to ships by using water drums according to claim 1, characterized in that: One end of the steel wire rope is connected to the ship's mooring bollard via a rope loop, and the other end is connected to the water drum mooring ring via a sling and shackle.

3. The method for preventing wind damage to ships by using water drums according to claim 1, characterized in that: The anchor chain is connected to the water drum mooring ring via a shackle.

4. The method for preventing wind damage to ships by mooring water drums according to claim 1, characterized in that: The slack length of the anchor chain is less than 2% of the length of the wire rope extending out of the hull, in order to avoid an excessive difference in stress between the wire rope and the anchor chain.

5. The method for preventing wind damage to ships by mooring water drums according to claim 1, characterized in that: The anchor chain and wire rope must not be tangled to achieve good wind protection.

6. The method for preventing wind damage to ships by mooring water drums according to claim 1, characterized in that: The anchor chain is equipped with chain shackles, swivels, enlarged chain links, and shackles at both ends.

7. The method for preventing wind damage to ships by using water drums according to claim 6, characterized in that: One end of the anchor chain is connected to the chain shackle and the enlarged chain link to form a closed loop, and then it is fitted onto the bollard. The other end is connected to the mooring ring of the water drum through the shackle.

8. The method for preventing wind damage to ships by using water drums according to claim 1, characterized in that: When a ship is not equipped with a chain catcher or anchor chain, an alternative anchor chain is added to replace the anchor chain.

9. The method for preventing wind damage to ships by mooring water drums according to claim 8, characterized in that: The alternative anchor chain is equipped with chain shackles, swivels, enlarged chain links, and shackles at both ends. One end is connected to the water drum mooring ring via a shackle, and the other end connects the chain shackle and the enlarged chain link to form a closed loop, which is then fitted onto the bollard.

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