Watertight isolated ship ventilation system

Abstract

The invention discloses a watertight isolated ship ventilation system and belongs to the technical field of ship construction. The ventilation system comprises an external ventilation opening, a mainventilation pipe, a tail end ventilation pipe and tail end air openings. The two ends of the main ventilation pipe are connected with the external ventilation opening and the tail end ventilation pipe. The tail end air openings are formed below the tail end ventilation pipe. The main ventilation pipe is formed by splicing multiple air pipes, and every two adjacent air pipes are connected through awatertight flange. External fresh air sequentially enters the main ventilation pipe and the tail end ventilation pipe through the external ventilation opening and enters a cabin through the tail endair openings to provide air for the cabin, fresh air supply in the cabin is guaranteed, air in the cabin can be emitted in time through the system as well, and stable operation of a ship and personnelsafety are protected. The main ventilation pipe is formed by splicing the multiple air pipes through the watertight flanges so that the situation that seawater enters the ventilation system through the main ventilation pipe and corrodes the inner wall of the main ventilation pipe and equipment in the cabin can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of ship building, in particular to a watertight isolated ship ventilation system. Background technique [0002] In recent years, ships have been spending more and more time performing missions in the open sea. Whether it is patrolling, fishing protection, exercises, training, etc., they will inevitably encounter harsh sea conditions. During the voyage of the ship, in order to ensure fresh air in some important cabins such as crowded areas and engine room areas, some external vents are not allowed to be closed. The vent enters the interior of the ventilation line. The existing air ducts are made of thin plates with poor anti-corrosion performance. Sea water (or rain) can leak from the flange joints, the joints of the air ducts, and the air outlets at the end of the air ducts. , the stagnant water cannot be removed quickly, and after soaking in seawater, it is easy to cause corrosion and wear of the air duct...

AI Technical Summary

Problems solved by technology

The existing air duct is made of thin plates, which has poor anti-corrosion performance. Sea water (or rain) can leak from the flange joints, the joints of the air duct and the air outlet at the end of the air duct. , the stagnant water cannot be quickly removed, and after soaking in seawater, it is easy to cause corrosion and wear of the air duct, which will affect the ventilation effect of the ventilation system, cause water to enter the interior of the ship, and cause electrical equipment failure, especially important equipment in the engine room due to water ingress. Damage may cause interruption of power system and power system output, seriously endangering the vitality of the ship and the technical performance of equipment

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