A kind of anti-collision bulkhead with ventilation function for small lng carrier

Abstract

The invention relates to a collision bulkhead with a ventilating function for a small LNG transport ship. The collision bulkhead is characterized in that the body part at the lower portion of the collision bulkhead forwards avoids a freight house at a ship bow, and the two sides, close to the ship axis, of the collision bulkhead protrude forwards by 2.0-2.3 m in a stepped mode after the collision bulkhead extends above a bulkhead deck by 2.3-2.5 m from bottom to top in a watertight mode; due to the forwards-protruding extending distance, the collision bulkhead avoids a mooring device of a head anchor mooring area above the bulkhead deck; the stepped protruding section of the collision bulkhead serves as one part of a structure air duct of a head cabin and is connected with a body of the structure air duct so that the collision bulkhead can have a ship ventilating function; the structure air duct is arranged on a main deck, is located in front of the body part of the lower portion of the collision bulkhead and away from the dangerous area above the bulkhead deck at the ship bow, and meanwhile avoids the head anchor mooring area so that anchor mooring operation can be facilitated.

Description

technical field [0001] The invention relates to an anti-collision bulkhead for a ship, in particular to an anti-collision bulkhead with a ventilation function for a small LNG carrier, and belongs to the technical field of ship anti-collision bulkhead design. Background technique [0002] Small LNG carriers are usually equipped with inert gas tanks and bow pusher tanks before the bow cargo tank and behind the collision bulkhead. The structural air duct arrangement of these compartments needs to consider the following issues, firstly, to avoid the dangerous area on the deck surface, and secondly, to avoid the mooring area on the deck surface and the deckhouse entrance into the bow compartment. The forward position of the bow deck is an ideal layout area, but this will bring about a problem, the air duct needs to pass through the collision bulkhead below the main deck. Since the SOLAS Convention has clear regulations on the tightness of the collision bulkhead and the minimum d...

AI Technical Summary

Problems solved by technology

The forward position of the bow deck is an ideal layout area, but this will bring about a problem, the air duct needs to pass through the collision bulkhead below the main deck

Since the SOLAS Convention has clear regulations on the tightness of the collision bulkhead and the minimum distance from the bow of the ship, the arrangement through the collision bulkhead is difficult to meet the requirements of the SOLAS Convention. The position behind the bulkhead sacrifices a certain mooring arrangement area, and the bow deck of a small LNG carrier is compactly arranged, and the arrangement of structural air ducts in the mooring area brings inconvenience to the mooring arrangement and increases the difficulty of operation; In turn, it also affects the layout of the cargo hold, thus reducing the space utilization rate of small LNG ships and reducing the loading capacity

[0003] In addition, there is a certain range of dangerous areas more than 2 meters above the deck of the bow of a small LNG carrier, and the structural air duct must be arranged in front of the dangerous area. , which brings great difficulties to the air duct layout

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