SU471237A1 - Ship water gastight closure - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to the field of shipbuilding and ship repair, in particular to ship water and gas tight closures.

The ship's water-gas-tight closures are known, containing a cover with pilot elements that interact with the coamings of the closing opening of the ship room, made in the form of two parallel walls, the cavity between which is connected to the drain pipe.

However, the well-known shipboard water-gastight closures are not sufficiently reliable due to possible leakage of water or the passage of gas from the outside into the hull of a vessel through leaks formed in the area of interaction between the coaming and sealing elements of the cover.

The purpose of the invention is to improve the reliability of the closure.

This is achieved by the fact that the cavity between the coaming walls through the drain pipe is connected to a source of compressed gas via a three-way valve.

FIG. 1 shows schematically the proposed ship water-and-gastight closure, longitudinal section; in fig. 2 — node I in FIG. I.

Ship's water-gastight closure contains a cover 1 with sealing elements 2 interacting with coaming

lockable opening of the ship premises. The coaming is made in the form of two parallel walls 3 and 4, the cavity A between which is connected with the source of compressed gas through the drain pipe 5 by means of a three-way valve 6.

The sealing of the ship’s water-gastight closure is carried out as follows.

After the ship's room is closed by the lid 1 and its sealing elements 2 are pressed against the sealing fields of the walls 3 and 4 of the coaming, compressed air is fed into the cavity "A" with a pressure slightly higher than outside pressure. In this case, the source of compressed air can be both autonomous and from the ship system. Leaked into the cavity "A" and the water is discharged into the hold through the drain pipe 5 by appropriately switching the three-way valve 6.

Subject invention

The ship’s water-gas-tight closure contains a lid with sealing elements interacting with the coamings of the closing opening of the ship’s room, made in the form of two parallel walls, the cavity between which is connected with

a drain pipe, characterized in that, in order to increase the reliability of the closure, the cavity between the coaming walls through 471237

the cut pipe is connected via a three-way valve to a source of compressed gas.