Main seawater pipe for polar environment

Abstract

The invention provides a polar environment main seawater pipe, the tail end of the main seawater pipe is located in a cavity structure formed by the side wall of a seawater tank and an ice blocking weir plate, a branch pipe is arranged on the main seawater pipe, and the tail end of the branch pipe is located outside the cavity structure formed by the side wall of the seawater tank and the ice blocking weir plate. The seawater tank ice blocking weir plate solves the problem that a ship cannot pump water in a shallow draft state due to the seawater tank ice blocking weir plate.

Description

Technical Field

[0001] The present invention belongs to the technical field of ship design, and particularly relates to a main seawater pipe in a polar environment. Background Art

[0002] For ships sailing in polar waters, in order to avoid a large amount of floating ice from blocking the main seawater filter, the structure of the seawater tank is made in a special form, and an ice baffle is provided.

[0003] When the ship has a shallow draft, the seawater cannot submerge the ice baffle, the main seawater pipe cannot pump water, and the seawater cooling system cannot be used normally, which will affect the entire cooling water system of the ship and cause the engine room equipment to malfunction. Summary of the Invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a main seawater pipe in a polar environment. The end of the main seawater pipe is located in the chamber structure formed by the side wall of the seawater tank and the ice baffle. A branch pipe is provided on the main seawater pipe, and the end of the branch pipe is located outside the chamber structure formed by the side wall of the seawater tank and the ice baffle.

[0005] Further, a main seawater pipe valve is provided at the end of the main seawater pipe, a main seawater filter is provided on the main seawater pipe, and the branch pipe is provided between the main seawater pipe valve and the main seawater filter.

[0006] Further, the branch pipe penetrates through the chamber structure formed by the side wall of the seawater tank and the ice baffle, and the end of the branch pipe penetrates out of the ice baffle.

[0007] Further, the branch pipe is welded to the bulkhead of the seawater tank and the ice baffle in a watertight manner.

[0008] Further, a normally closed valve is provided in the branch pipe.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] The present invention solves the problem that the ship cannot pump water in the shallow draft state caused by the ice baffle of the seawater tank. Brief Description of the Drawings

[0011] Figure 1 It is the schematic structural diagram I (top view angle of the sea chest) of the present invention,

[0012] Figure 2 It is the schematic structural diagram II ( Figure 1 view from direction A in Detailed Description of the Invention

[0013] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0014] The design of the seawater tank ice weir has certain height requirements and is designed according to the height of the light load waterline of the ship; however, this height exceeds the maximum draft of the shipyard dock, the seawater cannot cover the weir, and the seawater pump cannot pump water through the main seawater pipe.

[0015] In order to ensure that the system and equipment can be effectively debugged during the ship's stay at the dock, refer to Figure 1 and Figure 2 The present invention adds a branch pipe between the main seawater pipe valve and the main seawater filter. The short pipe runs through the weir plate and is watertightly welded to the seawater tank bulkhead and the weir plate. The end of the branch pipe directly draws seawater through the outer plate grid and is not affected by the height of the weir plate.

[0016] A valve is arranged on the branch pipe, which is in a normally closed state and is only opened for use when the dock has a shallow draft.

[0017] The newly added dock stage water inlet pipe in this application solves the problem of shallow draft and inability to absorb seawater during docking.

[0018] In summary, the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification are within the scope covered by the patent of the present invention.

Claims

1. A main seawater pipe for polar environments, the end of which is located in a chamber structure formed by a seawater tank side wall and an ice weir plate, characterized in that: A branch pipe is provided on the main seawater pipe, and the end of the branch pipe is located outside the chamber structure formed by the side wall of the seawater tank and the ice blocking weir plate.

2. The main seawater pipe according to claim 1, wherein: A main seawater pipe valve is provided at the end of the main seawater pipe, a main seawater filter is provided on the main seawater pipe, and the branch pipe is provided between the main seawater pipe valve and the main seawater filter.

3. The main seawater pipe according to claim 1, wherein: The branch pipe penetrates through the chamber structure formed by the side wall of the seawater tank and the ice blocking weir plate, and the end of the branch pipe penetrates through the ice blocking weir plate.

4. The main seawater pipe according to claim 3, wherein: The branch pipe is watertightly welded to the bulkhead of the seawater tank and the ice blocking weir plate.

5. The main seawater pipe according to claim 1, wherein: A normally closed valve is provided in the branch pipe.

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