Diving work support system and diving work support method

Abstract

A diving work support system includes: a mother ship; a deck decompression chamber mounted on the mother ship; and an underwater decompression chamber that is coupleable to the deck decompression chamber and is made to move down from the mother ship to a target depth. The diving work support system further includes a nitrogen producer that is mounted on the mother ship, separates nitrogen from air, and supplies the nitrogen to the deck decompression chamber. The nitrogen producer may supply the nitrogen to the underwater decompression chamber separated from the deck decompression chamber.

1 . A diving work support system comprising:
 a mother ship;   a deck decompression chamber mounted on the mother ship;   an underwater decompression chamber that is coupleable to the deck decompression chamber and is made to move down from the mother ship to a target depth; and   a nitrogen producer that is mounted on the mother ship, separates nitrogen from air, and supplies the nitrogen to the deck decompression chamber.   
     
     
         2 . The diving work support system according to  claim 1 , wherein the nitrogen producer supplies the nitrogen to the underwater decompression chamber separated from the deck decompression chamber. 
     
     
         3 . A diving work support method comprising:
 supplying nitrogen as an inactive gas for pressurization to a deck decompression chamber to which an underwater decompression chamber is coupled;   separating the underwater decompression chamber including a diver from the deck decompression chamber and making the underwater decompression chamber move down to a target depth that is 40 meters or less; and   making the diver perform diving work at the target depth.