WO1997038898A1

WO1997038898A1 - Vessel having propeller working in open wide area

Info

Publication number: WO1997038898A1
Application number: PCT/CN1996/000045
Authority: WO
Inventors: Jinyu Zhou
Original assignee: Jinyu Zhou
Priority date: 1996-04-16
Filing date: 1996-06-20
Publication date: 1997-10-23
Also published as: AU6120696A; CN1162551A; CN1071232C

Abstract

A vessel has propeller(s), in which the propeller is provided in a tunnel, that is formed at the bottom of the vessel. The rear end of the tunnel is lower at least 5cm than the no-loaded waterline of vessel, and higher than the front end of tunnel.

Description

High-speed ship with open ice thruster device Field of the invention

The present invention relates to ships, in particular to the linear design technology of the hull of the ship, and in particular to a stunned ship capable of being used in an open-water thruster device for shipping in shallow inland rivers or shallow marine areas. technical background

In recent years, in the design and manufacture of ships at home and abroad, due to the shallow water limitations of many coastal ports and inland rivers, large ships, especially 10,000-ton ships, cannot enter the port for unloading. For the development of the inland water transportation industry, if you want to build a deep-water port terminal, it will be costly, with a long cycle and slow results. Due to the shallow water of the inland waterways, the navigable mileage only accounts for a small part of the total length of rivers in the country. To build railways and highways, huge investments are required, as well as large amounts of land and valuable land. The best way is to develop water transport, which has less investment and quick results. Conventional ship line design generally adopts the tail thrust method. When the designer meets the optimal draught design of the thruster, the hull line design is deep and cannot meet the requirements of the navigation channel. If the design of the ship is relatively shallow, the propeller blades can not achieve the best propulsion effect, and it is easy to expose the water surface, which will affect the propulsion efficiency and longitudinal performance. For ships with a conventional tail tunnel type tail end propulsion method, due to its tunnel The design length is restricted by the position of the main engine of the ship, the length of the stern tunnel is limited, resulting in a short and steep longitudinal profile of the tunnel and a large change in curvature, which will block the ice flow after the thruster is in operation and exacerbate the water flow around the stern thruster. Disorders, due to the above-mentioned reasons, enable the preparation of tail-type tunnel-type ships to be widely used in shallow water areas and shallow inland waterways, thereby failing to take advantage of water transport in shallow waterways.

Chinese patent "W-type tunnel streamlined body vessel" (CN 8 7 1 0 3 8 1 5), the characteristics of the patent is a longitudinal section of the hull to linear ^1.5 10 station to station stations 6 in the total length of the hull The fan map is a W-shaped line (double closed double tunnel can be used), and the thruster is located in the tunnel area. Its advantages are the obvious improvement of the conventional ship line shape and the improvement of propulsion efficiency, and the shortcomings of the tunnel tunnel type ship are overcome. It is mainly suitable for ultra shallow 7k ships as general shallow channels and rapid sections of various river channels. The disadvantage is that the stern of the W-ship The stern closure point size is not determined, that is, the stern closure point size at the stern of the hull is not clearly provided below the waterline, which will affect the design and manufacture of the ship. The purpose of the present invention is to further improve the above-mentioned prior art. 釆 Use the principle of automatic exhaust and / or vacuum pumping during high-speed propulsion and generate vacuum self-priming, and solve the above-mentioned w-shaped linear tail closing point. The scale does not determine the problem, so a high-speed ship with an open water thruster device is designed, which is conducive to further improving the ship's propulsion efficiency, while improving the ship's stability, prolongation and seaworthiness.

Another object of the present invention is to propose a new high-speed propulsion wiper paddle to make a ship have high-speed performance. Brief description of the invention

In order to achieve the above object, the present invention proposes a fascinating ship with an open water thruster device. The ship includes a hull, a power unit, and a propeller propeller. The rear part of the hull has an inward ω depression and a longitudinal extension. A tunnel, the longitudinal section of the tunnel is roughly w-shaped, and the propeller propeller is located in the tunnel, characterized in that the total length of the hull of the ship is set to

10 stations, that is, 0-1, I-Π, II-m, m-ιν, ιν-v, v-νι,

VI-VI, VE-VIB, VE1-K, K-X, near the middle of the stern from the first station (0-I) to the seventh station (VI-W) are the terminations of the line at both ends of the tunnel The end point of the stern line is the stagnation point A near the first stop in the stern and is adjacent to I. The closed point A is at least 5 cm below the empty ship's draft line, but higher than the 7th stop. Line closure point B, and the baselines on both sides of the ship bottom are on the same horizontal plane;

In addition, the ship is also equipped with an extraction device connected to the tunnel;

The tunnel may be one extending along the centerline of the hull of the ship, or two longitudinally extending symmetrically about the centerline of the body; or three.

The inside of the tunnel is provided with a fixed tunnel linear plate and a movable tunnel linear plate abutting on its inner side, and the ship also has a lifting device, which is connected with the mop paddle so that the mop paddle is located in the tunnel body or partially Inside the tunnel or outside the tunnel, when it is outside the tunnel, the movable tunnel linear plate covers the downward opening of the tunnel.

The invention also proposes a 嫘 jet propeller. The propeller has a spindle-shaped nacelle. The two ends of the nacelle are respectively equipped with a power unit and a gear shifting device. Shape the outer sides of the two ends of the nacelle The device is drivingly connected. The top of the cone-shaped hub is axially extended with a propeller shaft. The propeller shaft has one or more impeller blade strings. One or more propellers are arranged on the outer side of the cone-shaped hub. The spindle-shaped nacelle with a conical hub is installed in a streamlined fairing with inlets and outlets at both ends. The fairing is installed on the hull and the organic cabin passage communicates with the interior of the hull. Brief description of the drawings

FIG. 1 is a schematic diagram of a ship embodiment according to the present invention;

Figure 2 is a schematic cross-sectional view of a ship embodiment, mainly showing the cross-sectional line shape of the tunnel body;

3 is a schematic cross-sectional view of a cabin embodiment, in which there is only one tunnel;

4 is a schematic cross-sectional view of another embodiment, in which there are two tunnels;

5A and 5B are a partial schematic side view and a schematic cross-sectional view of an embodiment of a ship, respectively, wherein the propeller is located in a tunnel and is in a low-speed navigation state;

Figures 6A and 6B are partial schematic side views and schematic views of the embodiment of the ship, respectively, in which the scull paddle part is located in the tunnel and is in a state of sailing between China and Portugal;

Figures 7A and 7B are a partial side view and a cross-sectional view of a ship embodiment, respectively, in which the paddle paddle is located outside the tunnel body, and the downward opening of the tunnel body is covered by the movable tunnel linear plate, which is Speeding

FIG. 8 is a schematic diagram of a rotary propeller of the present invention mounted on a hull;

Figure 9 is a schematic diagram of the assembly of a spindle-shaped nacelle with a conical hub;

FIG. 10A is a schematic diagram of a fairing;

Fig. 10B is a schematic cross-sectional view taken along line A-A in Fig. 10A, showing the passage of the cabin. Example description

Please refer to FIG. 1. The ship of the present invention includes a hull 1, a power unit 11, and a propeller propeller 8. The bottom of the hull 1 has a tunnel extending inwardly G3 and extending longitudinally. The top of the tunnel is roughly linear. The W type is indicated by the reference numeral 6, and the propeller propeller 8 is located in the tunnel. For the cross-sectional line shape of the tunnel, refer to FIG. 2. As shown in Figure 3 and Figure 4, the tunnel can be one or two ^. The total length of the hull 1 from stern ⁴ to bow 3 is set to 10 stations

(I.e. 0 — I, I-Π — m, in-IV, ιν-ν, v-vi, vi-,

W-VI, VOI-K, E-X) From the first stop <0-I) of stern 4 to the seventh stop In the vicinity of the middle (VI-VH), the end points A and B of the profile at both ends of the tunnel are respectively. The end point of the profile at the stern 4 is the closed point A at the first stop and adjacent to I. The closing point A The position is at least 5 cm below the empty ship eating ice line 2 and higher than the occlusion point B at the seventh station, and the bottoms 7 on both sides of the tunnel are flush. There is also a suction device 10 in the hull 1, and the suction device 10 is connected to C of the tunnel (see FIG. 3, where the suction device is not shown) to suck the water bubbles in the tunnel to facilitate the propeller 8 jobs. The inner side of the tunnel has a movable tunnel profile 5 2 and a fixed tunnel profile 5 1 abutting to its inner side. The movable tunnel profile ^ 5 2 can be hinged from multiple plates. The hull 1 also has a lifting device. 10, the lifting device 10 is connected to the propeller propeller 8. At low speed, the lifting device 10 places the propeller 8 in the tunnel (Fig. 5A, 5B). Part of the propeller 8 is located inside the tunnel (Figure 6A, 6B). During high navigation, the propeller 8 is located outside the tunnel, and the downward opening of the tunnel is covered by the movable tunnel wire plate 5 2.

The high-speed propeller propeller 8 proposed by the present invention installed in a tunnel has a spindle-shaped nacelle 9 7 (see FIG. 9), and both ends of the nacelle 9 7 are equipped with a power unit 9 6 and a speed reducer 9 5. The conical hub 9 4 is rotatably sleeved on the outer sides of both ends of the spindle-shaped nacelle, and is driveably connected to the power unit 9 6 and the transmission 9 5 respectively. The top of the conical hub 9 4 is provided with an axially extending paddle shaft 9 1. The propeller shaft 9 1 is provided with one or more screw propeller strings 9 2, and also has one or more 嫘 on the outside of the conical hub 9 4. Skewer string 9 3. A spindle-type nacelle 9 7 with a conical hub 9 4 is installed in the rectifier 100 1 (see Fig. 10 A, ί 0 B), and the entire cover 1 0 1 is located in the tunnel and installed on the hull 1 and on There are inlets and outlets 102, 103 on the upper side, and the fairing 101 is in communication with the hull 1 through the cabin passage 104 on it. Industrial applicability

The ship proposed by the present invention is equipped with a special thruster, which has good high-speed performance, has a specific tunnel shape, and can sail in shallow waters with high efficiency.

Claims

O 97/38898 Fork profit requirement

1. A ship with an open-water thruster device, the ship including a hull, a power unit, and a paddle propeller, and the rear of the hull has a tunnel extending inwardly ω and extending longitudinally, and a longitudinal section of the tunnel The line type is roughly w-shaped, and the propeller propeller is located in the tunnel, which is characterized in that the total length of the hull of the ship is set to 10 stations, at the first position from the stern.

From the (0-I) station to the middle of the 7th station (VI-W), the line ends at the two ends of the tunnel, and the end of the stern line is the closed point A at the stern of the first station next to the I station. , The closed point A is at least 5 cm below the empty ship's waterline, but higher than the closed line B at the 7th station, and the baseline of the bottom of the ship's two bows is on the same horizontal plane.

2. The ship according to Forklift claim 1, characterized in that the ship body is also provided with an extraction device connected to the tunnel.

3. The ship according to Forklift claim 1, characterized in that the propeller propeller has a spindle-shaped nacelle, and the two ends of the nacelle are respectively equipped with a power unit and a transmission, and a hollow rotary cone-shaped propeller hub It is rotatably sleeved on the outer sides of the two ends of the spindle-shaped nacelle and is driveably connected to the power unit and the transmission, respectively. The top of the cone-shaped hub is axially extended with a paddle shaft. The paddle shaft has one or more rotary propellers. Paddle string, one or more rotary blade paddle strings are arranged on the outer side of the cone-shaped hub, and a spindle-shaped nacelle with a cone-shaped hub is installed in a streamlined fairing with inlets and outlets at both ends. The fairing is installed on the hull and the channel of the organic cabin communicates with the interior of the hull.

4. The ship according to claim 1, characterized in that the inside of the tunnel has a fixed tunnel type line pole and a movable tunnel type line plate abutting to its inner side, and the ship body also has a lifting device, the lifting device It is connected to the paddle paddle so that the paddle paddle is located inside the tunnel body or part of the tunnel body or outside the tunnel body. When located outside the tunnel body, the movable tunnel profile covers the downward opening of the tunnel body.

5. The ship according to claim 1, wherein the tunnel may be a line extending along the centerline of the hull.

6. The ship according to claim 1, wherein the tunnel may also be two longitudinally extending symmetrically about the centerline of the hull.

7. The ship according to claim 1, wherein the tunnel may also be three longitudinally extending symmetrically about the centerline of the hull