Pressure stabilizing cavum structure applicable to air-layer drag reduction ship

A pressure stabilizing cavum structure, applicable to an air layer drag reduction ship and disposed at a bottom of a hull of a ship, comprising:

• a plurality of polyethylene pipes, wherein the plurality of PE pipes extend along a width direction of the hull, are arranged in parallel and spaced apart along a length direction of the hull, and are inserted through a longitudinal keel of the ship;
• and each PE pipe of the plurality of PE pipes is provided with a first opening extending along the width direction of the hull, and both sides of the each PE pipe in a width direction of the first opening are connected to a hull bottom plate of the ship to form a pressure stabilizing cavum;
• and
• a backing plate, extending along the width direction of the hull, wherein the backing plate is made of corrosion-resistant material, is located between the each PE pipe and the hull bottom plate and is sealingly connected to the each PE pipe and the hull bottom plate, the backing plate is provided with a first through hole, the hull bottom plated is provided with a second through hole communicating with the first through hole, and the pressure stabilizing cavum communicates with an outside of the ship through the first through hole and the second through hole.