CN105059515B - Surface paddle air exchange system - Google Patents

Abstract

The invention discloses and provides a surface paddle air exchange system which actively inflates a surface paddle and promotes the air circulation above a propeller, thereby greatly improving the working efficiency of the surface paddle. The invention comprises a cabin, at least one power main machine arranged in the tail part of the cabin and a surface paddle propulsion device connected with the power main machine, wherein the power main machine is also communicated with a main machine exhaust pipe fixed in the cabin through an exhaust pipe support, an exhaust port of the main machine exhaust pipe is positioned outside the cabin, the exhaust port is mutually vertical to a horizontal plane and is arranged downwards, the arrangement position of the exhaust port is always higher than the water surface, when the surface paddle propulsion device starts to operate, the surface of the surface paddle propulsion device can be in contact with air on the water surface, a large amount of air is consumed, and at the moment, the main machine exhaust pipe actively exhausts towards the surface paddle propulsion device, so that the working efficiency of the surface paddle propulsion device is improved. The invention is suitable for the field of boat manufacturing.

Description

Surface Paddle Ventilation System

technical field

The invention relates to a boat power propulsion device system, in particular to a surface paddle ventilation system.

Background technique

In the ultra-high-speed ship with a speed of more than 53kn, surface paddles are generally used instead of ordinary propellers to provide forward power for the hull. Compared with traditional propellers where all parts are submerged in water, surface propellers are propellers whose waterline just passes through the propeller hub when the ship is sailing, that is, the propeller shaft and its bracket are on the water surface, so that when the ship is running, the propeller The shaft and bracket no longer generate additional resistance, and improve the water flow through the propeller, thereby greatly improving the working efficiency of the propeller. Since a part of the blade of the surface propeller will be exposed to the water surface during operation, its surface is in contact with the air, making the water surface A large number of bubbles are generated, so that a large amount of air needs to be consumed. The Chinese patent "A Surface Propulsion System" with the application number 201320815180.X discloses a surface propeller, which aims to improve the service life and reliability of the surface propeller, and replace the hydraulic cylinders and other components originally arranged outside the stern seal plate Instead, it is arranged on the inner side of the stern seal plate, which is convenient for maintenance personnel to perform maintenance, repair and replacement, and also avoids the hydraulic cylinder from being damaged by the environment. However, the surface propeller disclosed in the above patent may consume excessive air during use, resulting in a vacuum state near the surface propeller, thereby hindering the rotation of the propeller and affecting the operating speed of the hull.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a surface propeller ventilation system that actively inflates the surface propellers to promote the air circulation above the propellers, thereby greatly improving the working efficiency of the surface propellers.

The technical solution adopted in the present invention is: the present invention includes a cabin, at least one power main engine arranged in the tail of the cabin, and a surface paddle propulsion device connected with the power main engine, and the power main engine is also connected with a through row The trachea bracket is fixed on the exhaust pipe of the main engine in the cabin, the exhaust port of the exhaust pipe of the main engine is located outside the cabin, and the exhaust port is perpendicular to the horizontal plane and arranged downwards, the exhaust The setting position of the mouth is always higher than the water surface. When the surface paddle propulsion device starts to operate, its surface will be in contact with the air on the water surface, consuming a lot of air. At this time, the exhaust pipe of the main engine actively propels toward the surface paddle The exhaust of the device improves its working efficiency.

Further, the surface paddle propulsion device includes a casing, a transmission shaft arranged in the casing and connected to the power main engine, and a paddle sleeved on the transmission shaft and located at the end of the casing. The bottom of the shell is also provided with wings.

Further, the surface paddle propulsion device also includes an angle adjustment device, which includes a piston rod arranged outside the cabin and a cardan shaft arranged between the transmission shaft and the power main engine, the piston rod The output terminal is connected with the shell.

Further, the piston rod, the casing and the cabin are arranged on different planes, and the fixed end of the piston rod is arranged outside the vertical plane where the casing is located.

Further, when a single power main engine is set in the cabin, the exhaust pipe of the main engine is arranged directly above the surface paddle propulsion device; when there are two or more power main engines in the cabin , the exhaust pipe of the main engine is arranged between two adjacent surface paddle propulsion devices.

Further, a bevel is also provided at the exhaust port.

Further, the diameter of the exhaust pipe of the main engine gradually increases toward the exhaust port.

Furthermore, the part of the exhaust pipe of the main engine located in the cabin is a wet exhaust pipe made of high-temperature-resistant wire-inserted rubber.

The beneficial effects of the present invention are: since the present invention includes a cabin, at least one power main engine arranged in the stern of the cabin and a surface paddle propulsion device connected with the power main engine, the power main engine is also communicated with exhaust The pipe bracket is fixed on the exhaust pipe of the main engine in the cabin, the exhaust port of the exhaust pipe of the main engine is located outside the cabin, and the exhaust port is perpendicular to the horizontal plane and arranged downward, the exhaust port The setting position of the surface paddle propulsion device is always higher than the water surface. When the surface paddle propulsion device starts to operate, its surface will be in contact with the air on the water surface, consuming a lot of air. At this time, the exhaust pipe of the main engine is actively moving toward the surface paddle propulsion device. Exhaust, improve its work efficiency. Compared with the prior art, the present invention transforms the exhaust pipe of the main engine that originally discharges exhaust gas outwards, and folds the exhaust port downward to 90°, so that when the power main engine starts to start, the The main engine exhaust pipe will discharge the exhaust gas discharged by the power main engine into the surface paddle propulsion device to continuously provide it with air, thereby ensuring its working efficiency. Therefore, the present invention actively inflates the surface paddles to promote the circulation of the air above the propellers, thereby greatly improving the working efficiency of the surface paddles.

Description of drawings

Fig. 1 is a side view structural representation of the present invention;

Fig. 2 is a top view structural schematic diagram of the present invention.

detailed description

As shown in Figures 1 and 2, the present invention includes a cabin 1, at least one main engine 2 arranged in the tail of the cabin 1, and a surface paddle propulsion device connected to the main engine 2, on the main engine 2 It is also communicated with the main engine exhaust pipe 4 fixed in the cabin 1 by the exhaust pipe bracket 3, the exhaust port 5 of the main engine exhaust pipe 4 is located outside the cabin 1, and the exhaust port 5 is connected to the The horizontal planes are perpendicular to each other and set downwards to provide air to the surface paddle propulsion device. The setting position of the exhaust port 5 is always higher than the water surface 11. Since the boats using surface paddles basically belong to the super-high-speed ship type, the tail The draft is much deeper than that of the general bow. Since the exhaust port 5 is quite close to the water surface 11, when the power main engine 2 is reversing, it is easy for the water flow to flow backward into the main engine exhaust pipe 4. Therefore In the present invention, the pipe body at the exhaust port 5 is designed as a 90° elbow structure, which can greatly reduce the probability of backflow of the exhaust pipe 4 of the main engine.

The surface paddle propulsion device includes a casing 6, a transmission shaft 7 arranged in the casing 6 and connected to the power main engine 2, and a paddle sleeved on the transmission shaft 7 and located at the end of the casing 6 8. A boat wing 9 is also provided at the bottom of the casing 6 . The surface paddle propulsion device also includes an angle adjustment device, which includes a piston rod 10 arranged outside the cabin 1 and a cardan shaft 12 arranged between the transmission shaft 7 and the main engine 2, the The output end of the piston rod 10 is connected to the housing 6, and the adjustment of the surface paddle propulsion device in the horizontal direction and the vertical direction is realized through the operation of the piston rod 10, thereby ensuring that a part of the paddle 8 Always stay on the surface 11. The piston rod 10 , the casing 6 and the cabin 1 are arranged on different planes, and the fixed end of the piston rod 10 is arranged outside the vertical plane where the casing 6 is located.

In the present invention, the exhaust port 5 is also provided with a bevel, which can effectively reduce the back pressure generated in the main engine exhaust pipe 4 and improve the service life of the equipment. The pipe diameter of the exhaust pipe 4 of the main engine gradually becomes larger toward the exhaust port 5. With such a structure, the air outlet area is increased and the working efficiency of the surface paddle propulsion device is improved.

The part of the main engine exhaust pipe 4 located in the cabin 1 is a wet exhaust pipe, which is made of high temperature-resistant wire rubber, so that the weight of the whole ship can be reduced, thereby increasing the running speed of the boat. When a single power main engine 2 is arranged in the cabin 1, the main engine exhaust pipe 4 is arranged directly above the surface paddle propulsion device; when two or more power main engines are arranged in the cabin 1 2, the main engine exhaust pipe 4 is arranged between two adjacent surface paddle propulsion devices, which can reduce the loss of gas and provide enough air for the surface paddle propulsion devices as much as possible.

When the surface paddle propulsion device starts to operate, its surface will be in contact with the air on the water surface 11, consuming a large amount of air. At this time, the main engine exhaust pipe 4 actively exhausts the surface paddle propulsion device to keep the The circulation of local air above the blade 8 improves the working efficiency of the surface paddle.

The invention is applicable to the field of boat manufacturing.

Claims (8)

1. A surface paddle ventilation system, which includes a cabin (1), at least one power host (2) arranged in the tail of the cabin (1), and a surface paddle propulsion connected to the power host (2) The device is characterized in that: the power main engine (2) is also communicated with a main engine exhaust pipe (4) fixed in the cabin (1) through an exhaust pipe bracket (3), and the main engine exhaust pipe The exhaust port (5) of (4) is located outside the cabin (1), and the exhaust port (5) is perpendicular to the horizontal plane and set downward, and the setting position of the exhaust port (5) is always high On the water surface (11), when the surface paddle propulsion device starts to operate, its surface will be in contact with the air on the water surface and consume a lot of air. At this time, the exhaust pipe of the main engine (4) actively propels toward the surface paddle The exhaust of the device improves its working efficiency. 2. The surface paddle ventilation system according to claim 1, characterized in that: the surface paddle propulsion device includes a casing (6), which is arranged in the casing (6) and communicates with the power host (2). The connected transmission shaft (7) and the paddle (8) sleeved on the transmission shaft (7) and located at the end of the casing (6), and a boat wing (9) is also arranged at the bottom of the casing (6) ). 3. The surface paddle ventilation system according to claim 2, characterized in that: the surface paddle propulsion device also includes an angle adjustment device, which includes a piston rod (10) arranged outside the cabin (1) and a set A universal transmission shaft (12) between the transmission shaft (7) and the main engine (2), the output end of the piston rod (10) is connected with the casing (6). 4. The surface paddle ventilation system according to claim 3, characterized in that: the piston rod (10), the housing (6) and the cabin (1) are arranged on different planes, and the piston rod (10) The fixed end is arranged on the outer side of the vertical plane where the casing (6) is located. 5. The surface paddle ventilation system according to claim 1, characterized in that: when a single power main engine (2) is set in the cabin (1), the main engine exhaust pipe (4) is arranged at Directly above the surface paddle propulsion device, when there are two or more power hosts (2) in the cabin (1), the exhaust pipes (4) of the host are arranged between two adjacent between surface paddle propulsion units. 6. The surface paddle ventilation system according to claim 5, characterized in that: the exhaust port (5) is also provided with a bevel. 7. The surface paddle ventilation system according to claim 5, characterized in that: the diameter of the exhaust pipe (4) of the main engine gradually increases toward the exhaust port (5). 8. The surface paddle ventilation system according to claim 5, characterized in that: the part of the main engine exhaust pipe (4) located in the cabin (1) is a wet exhaust pipe, which is made of high temperature resistant wire-wired rubber make.