Flange power-generating water-spraying thruster

Abstract

The invention aims to provide a flange power-generating water-spraying thruster. The thruster comprises an inflow pipeline, a generator, an impeller and a water pump, wherein the water pump is arranged in the inflow pipeline; the generator is mounted on a shall of the inflow pipeline; the impeller connected with the generator is arranged in the inflow pipeline; the inner end parts of the impeller are all connected with an impeller central hub; the impeller and the impeller central hub are arranged at the rear part of the water pump in the inflow direction. The thruster can provide extra electrical energy for the normal operation of a ship; in addition, the impeller can generate beneficial interference on the preposed water pump to improve the propulsion performance and the efficiency; the power generation system has excellent prospects in practical application in the recent context of energy conservation and emission reduction.

Description

technical field [0001] The invention relates to a ship device, specifically a ship power generation device. Background technique [0002] The water jet propulsion pump makes a rotary motion, which makes the fluid generate a rotary motion while pushing the fluid backward. Propelling the fluid backwards is necessary for the propeller to generate thrust, while the rotational motion of the wake is a complete waste of energy. [0003] The patent "a ship propeller residual energy power generation system" (application number: 201210002310.8) achieves the purpose of energy recovery by installing a power generation impeller behind the propeller to recover the wake energy behind the propeller. This invention has obvious deficiencies. First, the huge The water flow is mainly the backward axial flow, which is necessary for the ship to generate power, and the goal of recovering the energy of the axial flow can only weaken the required thrust of the ship, thereby affecting the navigation...

AI Technical Summary

Problems solved by technology

[0003] The patent "a ship propeller residual energy power generation system" (application number: 201210002310.8) achieves the purpose of energy recovery by installing a power generation impeller behind the propeller to recover the wake energy behind the propeller. This invention has obvious deficiencies. First, the huge The water flow is mainly the backward axial flow, which is necessary for the ship to generate power, and the goal of recovering the energy of the axial flow can only weaken the required thrust of the ship, thereby affecting the navigation performance of the ship

Secondly, placing the generator impeller fixing bracket and transmission mechanism in the water flow behind the ship will increase additional resistance

[0004] The Grim impeller is an ideal device for recovering the rotational energy of the propeller wake. The blades of the Grim impeller are divided into a turbine section and a propeller section. The diameter is generally 1.15 to 1.3 times the diameter of the front propeller. The strength requirements are too strict, and it is difficult to manufacture an ideal Grim impeller in terms of the current material technology level

[0005] Waterjet propulsion usually eliminates the wake flow generated by the water pump by adding a stator behind the water pump, but the effect is not particularly significant

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