A water jet propulsion pump device with retractable water inlet channel and its realization method

Abstract

A water jet propulsion pump device with a retractable water inlet channel and a realization method thereof belong to the field of ship engineering. It includes a water jet propulsion pump and a water inlet flow channel, wherein the water inlet flow channel includes a water inlet flow channel near the nozzle and a water inlet flow channel near the water inlet, and the water inlet flow channel near the nozzle is located at the water inlet end of the water jet propulsion pump, The water inlet flow channel near the water inlet is movably connected with the ship deck; the device is provided with a telescopic water passing part, one end of the telescopic water passing part is fixedly connected with the water inlet flow channel near the nozzle, and the other end is connected with the water inlet flow channel near the water inlet. Socketing; by making the telescopic water-passing parts go up or down in the water inlet channel near the water inlet, the water inlet channel can be expanded and contracted, so that the draft T' can reach an appropriate range, and the water jet propulsion device can run stably. There are broad market and application prospects in the design and operation of high-speed boats.

Description

technical field [0001] The invention relates to a water jet propulsion pump device with a retractable water inlet channel and a realization method thereof, belonging to the field of ship engineering. Background technique [0002] The water inlet channel is one of the important components of the water jet propulsion pump device, and the optimization of its performance has always been the focus of research. For a ship loaded with cargo or personnel, due to the change of load, its draft is different, so the draft T of the suction port of the water jet propulsion pump device is not in the ideal design range, resulting in unstable operation of the water jet propulsion pump device. The traditional water inlet flow channel is often of fixed length, which cannot effectively adjust the draft. This patent invents a new type of retractable water inlet flow channel to solve the problem of safe and reliable operation of the water jet propulsion pump device that plagues the shallow draft....

AI Technical Summary

Problems solved by technology

For a ship loaded with cargo or personnel, due to the change of load, its draft is different, so the draft T of the suction port of the water jet propulsion pump device is not in the ideal design range, resulting in unstable operation of the water jet propulsion pump device

The traditional water inlet channel is often of fixed length, which cannot effectively adjust the draft. This patent invented a new type of retractable water inlet channel to solve the problem of safe and reliable operation of the water jet propulsion pump device that plagues the shallow draft.

Images