77results about "Hull double bottoms" patented technology

The invention discloses a tank structure, applied to marine vehicle provided with complex number of cargo cabin grooves, bridge and tanks of two sides under the bridge. The said tank structure is composed of a tank between the cargo cabin groove and the tanks of two sides and the tank is connected with the tanks of two sides to make the loaded fuel communicated with each other. The said invention can make the loaded fuel communicated with each other, so that the communicating pipeline between the tanks of two sides can be saved up and the reserve fuel quantity of the marine vehicle can be increased.

A method for converting a single-hull vessel to a double hull vessel, and the converted double hull vessel, is disclosed. The single hull vessel to be converted has an outer hull surrounding a center cargo tank flanked by a port wing tank and a starboard wing tank, with spaced-apart transverse bulkheads extending between the port and starboard wing tanks to form one or more central tanks. An elevated floor is added to the central cargo tanks by installing new bottom plating spanning the transverse bulkheads and the sidewalls of the wing tanks. Support members are added to increase the strength of the elevated floor, the cargo tank, and the wing tanks, as needed. A sealed compartment is formed by the new elevated floor, the outer hull, and the sidewalls and bulkheads to protect the cargo from leaking out of the vessel should the integrity of the single hull be breached. The method achieves conversion of the single hull vessel to a double hull construction without breaching the integrity of the pre-existing single outer hull, and thus is faster and easier in converting single hull vessels to minimize cost of conversion and vessel outage.

The invention provides a hull construction of a oil tank for transporting oil and fresh water by using all ballast tanks formed in a double hull space as fresh water tanks 4a-4e and 5a-5e, and two combining tanks 11, 12 are provided at a central portion of a hull for combining a sea water ballast tank and a fresh water cargo tank. In this manner, non-wasteful sailing of an oil tanker can be realized by utilizing the tanker for transporting oil cargoes on a forward route and fresh water on a backward route.

The invention discloses a trough-shaped bulkhead connecting assembly and a ship. The trough-shaped bulkhead connecting assembly includes a trough-shaped bulkhead installed on the bottom plate of the ship. The bottom plate of the ship includes an inner bottom plate and an outer bottom plate arranged at intervals. A bottom stool is arranged between the outer bottom plate and the inner bottom plate, and the bottom stool includes a first inclined plate and a second inclined plate arranged at intervals, the upper ends of the first inclined plate and the upper ends of the second inclined plate are both Welded with the inner bottom plate, the lower end of the first slanted plate and the lower end of the second slanted plate are welded with the outer bottom plate, the upper end of the first slanted plate and the upper end of the second slanted plate The distance between the lower ends of the first inclined plate and the lower end of the second inclined plate is less than the distance between the lower ends of the first inclined plate and the lower end of the second inclined plate, and the channel bulkhead is welded on the inner bottom plate and is located between the first inclined plate and the between the second ramps. Compared with the prior art, the bottom stool in the present invention does not occupy the cabin capacity of the cabin, reduces the weight of the hull structure, and avoids narrow construction space in the cabin.