A demonstration test method for positioning marine emergency towing equipment

Abstract

This invention discloses a method for demonstrating the placement of marine emergency towing equipment, relating to the field of shipbuilding technology. The method proposes separate demonstration methods for the stern and bow sections of ships. This method utilizes a dockside crane for the demonstration test, eliminating the need for tugboats or other power equipment. It is simple to operate, the process is clear, straightforward, and easy to observe, saving testing time and costs, reducing operational risks, and significantly improving the safety of marine emergency towing equipment placement demonstration tests. This provides technical support for the demonstration of marine emergency towing equipment placement.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and specifically to a demonstration test method for the placement of a marine emergency towing device. Background Technology

[0002] According to the requirements of the International Convention for the Safety of Life at Sea, liquid cargo ships with a deadweight of not less than 20,000 tons should be equipped with emergency towing equipment at both ends of the bow and stern. Generally, before the liquid cargo ship is completed, the docking crew needs to demonstrate the placement of the emergency towing equipment at the stern and bow.

[0003] Currently, the conventional method for demonstrating the placement of emergency towing equipment at the stern or bow requires the use of tugboats or other powered equipment. The demonstration test is conducted according to the procedures outlined in GB / T 37604-2019 "Guidelines for Emergency Towing Procedures in Ship and Marine Technology Design". This requires prior coordination of tugboat participation, increasing the cost of the demonstration test. Furthermore, sufficient test space is required fore and aft of the vessel's mooring position. If the actual space is insufficient, the mother ship may even need to be moved, resulting in significant additional costs and consuming more test preparation time.

[0004] Therefore, there is an urgent need to propose a demonstration test method for the placement of marine emergency towing equipment, to shorten the test time and reduce the test cost, and to provide technical support for the placement demonstration test of marine emergency towing equipment. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a method for demonstrating the placement of marine emergency towing equipment, which effectively reduces the time and cost of demonstration tests and significantly improves the safety of such tests.

[0006] The technical solution adopted in this invention is: A demonstration test method for positioning marine emergency towing equipment includes a demonstration test method for positioning stern emergency towing equipment and a demonstration test method for positioning bow emergency towing equipment.

[0007] Preferably, the demonstration test method for the placement of the stern emergency towing equipment is applied to the stern of a ship, and the specific process is as follows: Remove the cover plate and stop ring from the combined strong end, move the end of the emergency towing cable into the combined strong end, connect one end of the recovery wire rope to the end of the emergency towing cable using the connecting chain, reset the cover plate and stop ring of the combined strong end, and then connect the other end of the recovery wire rope to the hook of the dock crane. Adjust the hook of the dock crane to be directly above the emergency towing cable guide device, and slowly raise the hook of the dock crane vertically upward. Use the hook of the dock crane to pull the connecting chain and the emergency towing cable until the end of the emergency towing cable passes through the emergency towing cable guide device, then stop raising the dock crane to complete the positioning of the stern emergency towing equipment.

[0008] Preferably, the emergency towing cable is stored in a pneumatic cable storage winch, which is fixed to the main deck of the ship.

[0009] Preferably, the demonstration test method for the placement of the bow emergency towing equipment is applied to the bow of a ship, and the specific process is as follows: Connect one end of the throwing rope to the bollard, and the other end to the emergency towing cable located on the deck through the guide hole; pull the throwing rope to pull one end of the emergency towing cable onto the ship through the guide hole, and secure the emergency towing cable to the bollard to prevent it from slipping off the ship; open the chain stopper, connect one end of the throwing rope to the chain link of the anti-friction chain, and connect the other end through the single chain stopper to the winch; use the winch to raise the throwing rope until the chain link of the anti-friction chain passes through the chain stopper, then lower the chain stopper and connect the other end of the anti-friction chain to the emergency towing cable; use the dock crane, connect the hook of the dock crane to the other end of the emergency towing cable, and slowly lift the emergency towing cable vertically upward above the guide hole using the hook of the dock crane until the anti-friction chain is pulled out of the guide hole, then stop lifting the dock crane, completing the positioning of the bow emergency towing equipment.

[0010] Preferably, the chain catcher is fixed to the upper deck of the ship.

[0011] The beneficial effects of this invention are as follows: This invention proposes a method for demonstrating the placement of marine emergency towing equipment. It utilizes a dock crane for this demonstration, solving the problem that conventional emergency towing equipment placement demonstrations require tugboats and other power equipment. The method is simple to operate, with a clear, concise, and easily observable process. It saves time and costs associated with emergency towing equipment placement demonstrations, reduces operational risks, and significantly improves the safety of such demonstrations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the demonstration test method for positioning the stern emergency towing equipment of the present invention.

[0013] Figure 2 A schematic diagram of connecting the throwing rope to the emergency towing cable.

[0014] Figure 3 A schematic diagram of connecting the throwing rope to the anti-friction chain.

[0015] Figure 4 A schematic diagram of the hook pulling the anti-friction chain.

[0016] In the diagram: 1. Emergency towing cable, 2. Pneumatic cable storage winch, 3. Combined heavy-duty end, 4. Connecting chain, 5. Recoverable wire rope, 6. Hook, 7. Emergency towing cable guide device, 8. Throwing rope, 9. Anti-friction chain. Detailed Implementation

[0017] This invention provides a demonstration test method for positioning marine emergency towing equipment. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention is further described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0018] The present invention will now be described in detail with reference to the accompanying drawings: This embodiment proposes a demonstration test method for the placement of marine emergency towing equipment, specifically including a stern emergency towing equipment placement demonstration test method and a bow emergency towing equipment placement demonstration test method. The stern emergency towing equipment placement demonstration test method is applicable to the placement demonstration of emergency towing equipment at the stern of a ship, and the bow emergency towing equipment placement demonstration test method is applicable to the placement demonstration of emergency towing equipment at the bow of a ship. Specifically, the demonstration test method for the placement of the stern emergency towing equipment is applied to the stern of a ship, such as... Figure 1 As shown, the specific process is as follows: The emergency towing cable 1 is stored in a pneumatic cable storage winch 2 fixed on the main deck of the ship. First, remove the cover plate and stop ring of the combined strong end 3, move the end of the emergency towing cable into the combined strong end, connect one end of the recovery wire rope 5 to the end of the emergency towing cable using the connecting chain 4, reset the cover plate and stop ring of the combined strong end, and then connect the other end of the recovery wire rope to the hook 6 of the dock crane. Adjust the hook of the dock crane to be directly above the emergency towing cable guide device 7, and slowly raise the hook of the dock crane vertically upward. Use the hook of the dock crane to pull the connecting chain and the emergency towing cable until the end of the emergency towing cable passes through the emergency towing cable guide device, then stop raising the dock crane to complete the positioning of the stern emergency towing equipment.

[0019] Specifically, the demonstration test method for the placement of the bow emergency towing equipment is applied to the bow of a ship, such as... Figures 2-4 As shown, the specific process is as follows: Connect one end of the throwing rope 8 to the bollard, and the other end to the emergency towing cable 1 located on the deck through the cable guide hole. Figure 2 As shown; pull the throwing rope to pull one end of the emergency towing cable through the guide hole onto the ship, and secure the emergency towing cable to the bollard to prevent it from slipping off the ship; open the chain stopper's brake, connect one end of the throwing rope to the chain link of the anti-friction chain 9, and connect the other end through the single chain stopper's brake to the winch, as shown. Figure 3 As shown; use a winch to raise the throwing rope until the chain link of the anti-friction chain passes the chain stopper, then lower the chain stopper's brake and connect the other end of the anti-friction chain to the emergency towing cable; use the dock crane, connect the dock crane hook to the other end of the emergency towing cable, and slowly and vertically raise the emergency towing cable upwards above the cable guide hole using the dock crane hook, as shown. Figure 4 As shown, the hoisting of the dock crane will be stopped once the anti-friction chain has been pulled out of the guide cable hole for a certain distance, thus completing the positioning of the bow emergency towing equipment.

[0020] The method for demonstrating the placement of marine emergency towing equipment in this embodiment does not require the use of tugboats or other power equipment. It only uses a readily available production tool such as a dock crane, which is simple to operate. Furthermore, since the demonstration process of placing marine emergency towing equipment in place reduces the use of tugboats and other power equipment, it saves a lot of time and money, reduces the operational risks during the demonstration process, and greatly improves the safety of the demonstration test.

[0021] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A method for demonstrating the placement of marine emergency towing equipment, characterized in that, This includes demonstration test methods for the placement of stern emergency towing equipment and bow emergency towing equipment; The aforementioned demonstration test method for the placement of emergency towing equipment at the stern of a ship is applied to the stern of the vessel, and the specific process is as follows: Remove the cover plate and stop ring of the combined strong end, move the end of the emergency towing cable into the combined strong end, connect one end of the recovery wire rope to the end of the emergency towing cable using the connecting chain, reset the cover plate and stop ring of the combined strong end, and then connect the other end of the recovery wire rope to the hook of the dock crane. Adjust the hook of the dock crane to be directly above the emergency towing cable guide device, slowly and vertically lift the hook of the dock crane, and use the hook of the dock crane to pull the connecting chain and the emergency towing cable until the end of the emergency towing cable passes through the emergency towing cable guide device. Stop lifting the dock crane to complete the positioning of the stern emergency towing equipment. The emergency towing cable is stored in a pneumatic cable storage winch, which is fixed to the main deck of the ship. The aforementioned demonstration test method for the placement of the bow emergency towing equipment is applied to the bow of a ship, and the specific process is as follows: Connect one end of the throwing rope to the bollard, and the other end to the emergency towing cable located on the deck through the guide hole; pull the throwing rope to pull one end of the emergency towing cable onto the ship through the guide hole, and fix the emergency towing cable to the bollard to prevent it from slipping off the ship; open the chain stopper, connect one end of the throwing rope to the chain link of the anti-friction chain, and connect the other end through the single chain stopper to the winch; use the winch to raise the throwing rope until the chain link of the anti-friction chain passes through the chain stopper, then lower the chain stopper and connect the other end of the anti-friction chain to the emergency towing cable; use the dock crane to connect the hook of the dock crane to the other end of the emergency towing cable, and slowly lift the emergency towing cable vertically upward above the guide hole using the hook of the dock crane until the anti-friction chain is pulled out of the guide hole, then stop lifting the dock crane to complete the positioning of the bow emergency towing equipment; The chain catcher is fixed to the upper deck of the ship.

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