Low-water-resistance ship with diameter-changing speed-up cabin

Abstract

The invention discloses a low-water-resistance ship with a diameter-changing speed-up cabin. The low-water-resistance ship comprises a ship body and the speed-up cabin located below the ship bottom. The ship bottom is sequentially provided with a horizontal air blocking segment, a shrinking segment, a water inlet segment, an arching segment and a water outlet segment from front to back, wherein the horizontal air blocking segment, the shrinking segment, the water inlet segment, the arching segment and the water outlet segment are connected end to end. An opening in the rear end of the speed-up cabin is a water outlet, and the water outlet is located in the stern of the ship body. An opening in the front end of the speed-up cabin is a water inlet, and the upper end of the water inlet in the wall of the speed-up cabin is located in the middle of the horizontal air blocking segment. The horizontal air blocking segment, the water inlet segment and the water outlet segment of the ship bottom are mutually parallel. The arching segment arches upward, and two impellers which are located in the same horizontal position and arranged side by side are arranged in the arching segment. The two impellers are respectively in transmission connection with a motor. The speed-up cabin becomes thinner sequentially from front to back, so that water is supplied to the impellers more sufficiently and flows faster, and the front sucking and back pushing effect is more obvious. Moreover, because the arching segment provided with the impellers is arranged, the work area of the impellers is far larger than the sectional area of a cavity below the water outlet segment. Therefore, the ship can run at higher speed.

Description

[0001] [0002] This application is a divisional application, the original patent number is: 201110118724.2, the application date: April 29, 2011, and the invention title is: a boat with low water resistance. technical field [0003] The invention relates to a ship with low water resistance, and the ship includes large, medium and small ships, submarines, ships and aircraft carriers. Background technique [0004] The current boats are very slow, and the concept of high horsepower and low speed has been adopted. The ensuing problem is that the speed of the ship cannot be increased simply by increasing the propeller speed. There are two reasons for this phenomenon. One is that the resistance of water is greater, and the deeper the draft, the greater the resistance; the other is air intake, because the ship is driving between water and air, and the natural flow rate of water is at a certain depth. There is a certain limit. When the speed of the propeller exceeds a certain l...

AI Technical Summary

Problems solved by technology

In order to reduce the contact area and resistance between the ship and the water, the shape of the bottom of the ship is warped forward based on the horizontal plane. When the ship is running, the bottom surface of the front end of the ship is away from the water surface. If it is pumped into the speed-increasing tube, it is easy to have the above-mentioned air intake problem, which will affect the further improvement of the ship's speed

On the other hand, the water inlet diameter at the front end of the speed-increasing pipe is similar to the water outlet diameter at the rear end. When the impeller drains water at high speed, the water supply is limited, which ultimately affects the drainage speed, and the speed-up effect is not ideal.

Images