Shallow draft ship

Abstract

The invention discloses a shallow draft ship, and belongs to the technical field of ships. The ship comprises a ship body and a propeller arranged on the ship body; two first cambered surface grooveswhich are symmetrically formed relative to the central section in the length direction of the ship body and extend along the length direction of the ship body are formed in the bottom surface of theship body, wherein the first ends of the two first cambered surface grooves penetrate through the tail surface of the hull; the second end of each first cambered surface groove is provided with a second cambered surface groove in an extending manner; a preset included angle is formed between each second cambered surface groove and the corresponding first cambered surface groove, wherein the presetincluded angle is larger than 90 degrees; the end, away from the corresponding first cambered surface groove, of each second cambered surface groove penetrates through the side face of the corresponding ship body, and the propeller is located in the corresponding first cambered surface groove. Compared with the prior art, water flow on the side face of the ship body can enter the first cambered surface groove through the second cambered surface groove to supplement water in front of the propeller, so that the propeller has enough water absorption capacity, and the navigation stability and propulsion efficiency of the ship are guaranteed.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a shallow-draft ship. Background technique [0002] Ships rely on propellers for propulsion, and the principle of propeller propulsion is that through rotation, the blades move water backwards, and the ship itself is subjected to the reaction force of the water flow, and its thrust is transmitted to the hull through the propeller shaft and thrust bearing. [0003] Ships sailing in shallow water for a long time are limited by the water depth. The distance between the bottom of the ship and the river bottom is short and the gap is small. In order to prevent the propeller from hitting foreign objects on the river bottom, the position corresponding to the bottom of the ship and the propeller is often designed along the length of the ship. The extended and one end of the channel runs through the tail surface of the ship and is in the shape of a "one". The propeller is partly installed i...

AI Technical Summary

Problems solved by technology

[0003] Ships sailing in shallow water for a long time are limited by the water depth. The distance between the bottom of the ship and the bottom of the river is short and the gap is small. In order to prevent the propeller from hitting foreign objects on the river bottom, the position corresponding to the bottom of the ship and the propeller is often designed along the length of the ship. The extended and one end of the channel runs through the tail surface of the ship and is in the shape of a "one". Part of the propeller is inserted into the channel to ensure the safety of the propeller. The water slows down to form a vacuum, the propeller cannot move the water, and the influence of wind, water flow and other external forces often leads to unstable course and uncontrollable speed of the ship when sailing, and the propeller idling will consume more fuel and reduce the competitiveness of the ship. sex

Images