A flat type seal device of an underwater mounting azimuth thruster and a storage method thereof

Abstract

The invention provides a flat type seal device of an underwater mounting azimuth thruster for a ship in the shape of a common merchant ship, such as a drill ship, and a storage method thereof. According to the invention, during watertight operation required by installation of the underwater mounting azimuth thruster, no additional space needs to be formed in the ship and the seal device can be stored easily in an original narrow space. The seal device is characterized by small size and low weight, so that personal casualty accidents and device damage risk during handling can be reduced to a certain extent.

Description

technical field [0001] The present invention relates to a flat-plate type sealing equipment and a mounting method thereof for an underwater installation azimuth propeller suitable for installation on a ship having a general merchant ship shape such as a drill ship. Background technique [0002] Generally speaking, in the propulsion device of the ship, the azimuth thruster (azimuth thruster) is used as a kind of electric drive propulsion device in the rotating mode, such as figure 1 and figure 2 As shown, it is a device with both propulsion and steering functions of the ship. Since it can be installed separately from the main engine, it has the effect of increasing the flexibility of the ship's internal division and configuration, reducing the volume of the engine room and increasing the volume of the cargo hold. With the help of its own rotation, It has the advantage of excellent adjustment performance. [0003] On the other hand, an underwater mounting azimuth thruster i...

AI Technical Summary

Problems solved by technology

Therefore, compared with a common room-shaped compartment, the usable space is small, and it is difficult to store the dome-shaped sealing device 80.

[0010] In addition, even if the dome-shaped sealing device 80 is installed near the underwater azimuth propeller, since it is mounted in a narrow space, the movement of the dome-shaped sealing device 80 is restricted during work.

In response to this problem, it is intended to solve the problem of narrow loading space by erecting the motor at one corner to form a path through which the dome-shaped sealing device 80 can pass. However, in this case, the length of the power transmission shaft is extended. The shaft alignment between the motor and the underwater azimuth thruster is difficult, which leads to the disadvantage of reduced power transmission efficiency

[0011] 2. Disposal of dome-shaped sealing equipment

Therefore, the handling of such heavy objects in a confined space as described above is often accompanied by the risk of accidents involving casualties and the risk of damage to surrounding equipment.

[0013] 3. Supplier specifications are too high

However, the maximum draft of ships such as drilling ships is about 10m, and the water depth used for installing azimuth propellers underwater is often smaller than that, and the water pressure is less than 1 bar

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