Low-resistance turbine driving structure for narrow channel and transport ship

Abstract

The utility model provides a low resistance turbine drive structure and transport ship for narrow channel, including the outer runner on the ship body, the outer runner is arranged along the length direction of the ship body and is through structure, the outer runner is internally fixed with an outer cylinder, the outer cylinder is internally provided with a rotatable inner cylinder, the inner cylinder is internally provided with a turbine blade, and the turbine blade is provided with a plurality of turbine blades. An electromagnetic driving mechanism is arranged between the inner barrel and the outer barrel to drive the inner barrel to rotate; the transport ship adopting the low-resistance turbine driving structure is beneficial for discharging water from the bow to the stern during ship navigation, the height of the front water level is reduced, and the ship navigation resistance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a low-resistance turbine drive structure and a transport ship used in narrow waterways. Background Art

[0002] When a ship is sailing, since the hull moves in two fluid media, air and water, at the same time, it will be subject to the resistance of the two fluid media. There has been a lot of research on drag reduction technology for ships sailing in open waters, such as the drag reduction method of bulbous bow line optimization and the drag reduction method of the spherical head reverse jet. However, when a ship sails in a narrow channel, it is easy to produce shallow water effect caused by too shallow water or too deep draft of the hull and too high speed, and the bank effect caused by the hull being sucked towards the bank due to the limited width of the channel, which will cause a significant change in hydrodynamic performance. Narrow channels are limited by width and depth of water. During the hull's navigation, the water level in the front is higher, while the water level in the rear is lower, forming a piston effect. The fluidity of water in a narrow channel is an important factor affecting the speed of the hull in a narrow channel. Utility Model Content

[0003] The main purpose of the utility model is to provide a low-resistance turbine drive structure and a transport ship for narrow waterways, so as to solve the problem of high bow water level and large resistance when the transport ship sails in narrow waterways.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a low-resistance turbine drive structure for narrow waterways, an outer flow channel arranged on the hull, the outer flow channel is arranged along the length direction of the hull and is a through structure, an outer cylinder is fixedly provided in the outer flow channel, a rotatable inner cylinder is provided in the outer cylinder, turbine blades are provided in the inner cylinder, and an electromagnetic drive mechanism is provided between the inner cylinder and the outer cylinder to drive the inner cylinder to rotate.

[0005] In a preferred embodiment, the turbine blades are spirally arranged on the inner wall of the inner cylinder, and a shaft is provided at the center of the turbine blades, which connects the turbine blades into a whole.

[0006] In a preferred embodiment, guide heads are provided at both ends of the shaft to guide the water to flow toward the turbine blades.

[0007] In a preferred embodiment, the turbine blades are discontinuous blades.

[0008] In a preferred embodiment, both ends of the outer cylinder are bell-shaped, and the position of the inner cylinder is the position where the inner diameter of the outer cylinder is the smallest.

[0009] In a preferred embodiment, bearings are provided at both ends of the inner cylinder to connect with the outer cylinder.

[0010] In a preferred embodiment, a sealing ring is provided on the outer side of the bearing to prevent water from entering the electric drive gap provided between the inner cylinder and the outer cylinder.

[0011] In a preferred embodiment, a plurality of permanent magnets are disposed on the outer wall of the inner cylinder, and corresponding electromagnetic coils are disposed on the inner wall of the outer cylinder. The permanent magnets and the electromagnetic coils constitute an electromagnetic drive mechanism.

[0012] In the preferred embodiment, the outer wall of the inner cylinder is provided with multiple excitation electromagnetic coils, the inner wall of the outer cylinder is provided with corresponding electromagnetic coils, and an induction electromagnetic coil is also provided between the outer cylinder and the inner cylinder. The induction electromagnetic coil is connected to the excitation electromagnetic coil, and the excitation electromagnetic coil and the electromagnetic coil constitute an electromagnetic drive mechanism.

[0013] A transport ship with a low-resistance turbine-driven structure for use in narrow waterways has an outer flow channel on the hull, the outer flow channel runs through the front and rear of the hull, an outer cylinder is fixedly arranged in the outer flow channel, a rotatable inner cylinder is arranged in the outer cylinder, turbine blades are arranged in the inner cylinder, and an electromagnetic drive mechanism is arranged between the inner cylinder and the outer cylinder to drive the turbine blades to rotate.

[0014] The utility model provides a low-resistance turbine drive structure and a transport ship for narrow waterways, which adopts a low-resistance turbine drive structure, arranges an outer flow channel of a through structure along the length direction of the hull, and an outer cylinder is fixed inside the outer flow channel, a rotatable inner cylinder is arranged inside the outer cylinder, and an electromagnetic drive mechanism is arranged between the inner cylinder and the outer cylinder to drive the inner cylinder to rotate, push the water to the rear and drive the ship to sail. This structure is relatively simple, and the use of this structure in a transport ship helps to discharge water from the bow to the stern during navigation, reduce the front water level, and thus reduce the navigation resistance of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a cross-sectional view of a low-resistance turbine drive structure for narrow waterways in the utility model;

[0017] Figure 2 It is a cross-sectional view of the low-resistance turbine drive structure AA used for narrow waterways in the utility model;

[0018] Figure 3 It is an enlarged view of the low-resistance turbine drive structure B used for narrow waterways in the utility model;

[0019] Figure 4 It is a structural diagram of Example 2 of the utility model;

[0020] Figure 5It is a front view of a transport ship with a low-resistance turbine drive structure used in narrow waterways in the utility model;

[0021] In the figure: hull 1; outer flow channel 2; outer cylinder 3; inner cylinder 4; turbine blades 401; shaft 402; guide head 403; bearing 404; sealing ring 405; electromagnetic drive mechanism 5; permanent magnet 501; electromagnetic coil 502; electric drive gap 503; excitation electromagnetic coil 504; induction electromagnetic coil 505. DETAILED DESCRIPTION

[0022] Embodiment 1:

[0023] like Figure 1-3 As shown, a low-resistance turbine drive structure for narrow waterways includes an outer flow channel 2 arranged on a hull 1, the outer flow channel 2 is arranged along the length direction of the hull 1 and is a through structure, an outer cylinder 3 is fixedly arranged in the outer flow channel 2, a rotatable inner cylinder 4 is arranged in the outer cylinder 3, turbine blades 401 are arranged in the inner cylinder 4, and an electromagnetic drive mechanism 5 is arranged between the inner cylinder 4 and the outer cylinder 3 to drive the inner cylinder 4 to rotate. With this structure, when the ship is sailing, the water flows from the front to the rear of the hull 1 along the outer flow channel 2 of the through structure to reduce the water level at the front; the electromagnetic drive mechanism 5 is installed between the inner cylinder 4 and the outer cylinder 3 to drive the inner cylinder 4 to rotate, and the kinetic energy conversion and force transmission can be realized through the rotation of the turbine blades 401 in the inner cylinder 4, so as to push the water to the rear and push the ship forward.

[0024] In the preferred embodiment, the turbine blades 401 are spirally arranged on the inner wall of the inner cylinder 4, and a shaft 402 is provided at the center of the turbine blades 401, and the shaft 402 connects the turbine blades 401 into a whole. With this structure, the center of the turbine blades 401 is fixedly connected to the shaft 402 to ensure that the turbine blades 401 can withstand the impact force and rotational torque from the water body.

[0025] In the preferred embodiment, guide heads 403 are provided at both ends of the shaft 402 to guide the water to flow toward the turbine blades 401. With this structure, the guide head 403 is a tip structure to guide the water to flow, so that the water flows toward the turbine blades 401 with low resistance.

[0026] In a preferred embodiment, the turbine blades 401 are discontinuous blades. With this structure, when water passes through the discontinuous turbine blades 401, the power loss of the water body and the generation of vortices are reduced, and the replacement and maintenance of the turbine blades 401 are facilitated.

[0027] In the preferred embodiment, the two ends of the outer cylinder 3 are trumpet-shaped, and the position of the inner cylinder 4 is the position where the inner diameter of the outer cylinder 3 is the smallest. With this structure, when water enters the outer cylinder 3, the impact force of the water is strong, which is easy to cause greater resistance. By setting the outer cylinder 3 with a trumpet-shaped opening and setting the position of the inner cylinder 4 to the position where the inner diameter of the outer cylinder 3 is the smallest, the direct impact force of the water on other components is alleviated, and the navigation resistance of the ship is reduced.

[0028] In the preferred embodiment, bearings 404 are provided at both ends of the inner cylinder 4 to connect with the outer cylinder 3. According to this structure, at least two groups of bearings 404 are provided along the axial direction in this example, and ball bearings 404 are used to carry and transmit torque to ensure that different components can work together effectively.

[0029] In the preferred embodiment, a sealing ring 405 is provided on the outside of the bearing 404 to prevent water from entering the electric drive gap 503 provided between the inner cylinder 4 and the outer cylinder 3. With this structure, an electric drive gap 503 is provided between the outer cylinder 3 and the inner cylinder 4 to complete the normal operation of the electromagnetic drive mechanism 5, so a sealing ring 405 needs to be provided to form a seal to prevent water from entering the electric drive gap 503.

[0030] In the preferred embodiment, the outer wall of the inner cylinder 4 is provided with a plurality of permanent magnets 501, and the inner wall of the outer cylinder 3 is provided with corresponding electromagnetic coils 502, and the permanent magnets 501 and the electromagnetic coils 502 constitute an electromagnetic drive mechanism 5. With this structure, the magnetic force generated by the electromagnetic coils 502 and the magnetic force of the permanent magnets 501 are superimposed on each other to form an electromagnetic drive mechanism 5, and the torque generated drives the inner cylinder 4 to rotate.

[0031] Embodiment 2:

[0032] Further illustrate with reference to Example 1, Figure 1-4 The structure shown, the electromagnetic drive mechanism 5 described in Example 1 can also be that the outer wall of the inner cylinder 4 is provided with a plurality of excitation electromagnetic coils 504, the inner wall of the outer cylinder 3 is provided with a corresponding electromagnetic coil 502, and an induction electromagnetic coil 505 is further provided between the outer cylinder 3 and the inner cylinder 4, the induction electromagnetic coil 505 is connected to the excitation electromagnetic coil 504, and the excitation electromagnetic coil 504 and the electromagnetic coil 502 constitute the electromagnetic drive mechanism 5. With this structure, the electromagnetic coil 502 can generate a rotating magnetic field, the excitation electromagnetic coil 504 is connected to the induction electromagnetic coil 505 to form a closed loop, and an induced electromotive force is generated in the rotating magnetic field to drive the inner cylinder 4 to rotate.

[0033] Embodiment 3:

[0034] Further illustrate with reference to Example 1 and Example 2, Figure 1-5The structure shown includes a transport ship with a low-resistance turbine drive structure for narrow channels as described in Example 1 or Example 2, wherein an outer flow channel 2 is provided on the hull 1, and the outer flow channel 2 runs through the front and rear of the hull 1, an outer cylinder 3 is fixedly provided in the outer flow channel 2, a rotatable inner cylinder 4 is provided in the outer cylinder 3, turbine blades 401 are provided in the inner cylinder 4, and an electromagnetic drive mechanism 5 is provided between the inner cylinder 4 and the outer cylinder 3 to drive the turbine blades 401 to rotate. Based on this structure, in this example, two symmetrical outer flow channels 2 are preferably set to adjust the center of gravity distribution of the hull 1, discharge the water at the bow of the hull 1 backwards, lower the water level at the bow, and reduce the resistance caused by high pressure at the bow and low pressure at the stern; when the hull 1 is loaded with cargo and sailing in a narrow waterway, the distance between the bottom of the hull 1 and the bottom of the waterway is at least 1 meter to ensure that the hull 1 does not touch the bottom of the waterway and to ensure that there is sufficient surplus water depth; in order to smoothly pass through the narrow waterway and ensure that the containers loaded in the hull 1 are at a distance from the inner wall of the waterway, while leaving enough cargo space, the overall height of the hull 1 must be limited to 5 meters and the length must be at least 6 meters.

[0035] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A low-resistance turbine drive structure for narrow waterways, characterized by: The invention comprises an outer flow channel (2) arranged on a hull (1), the outer flow channel (2) being arranged along the length direction of the hull (1) and being a through structure, an outer cylinder (3) being fixedly arranged in the outer flow channel (2), a rotatable inner cylinder (4) being arranged in the outer cylinder (3), turbine blades (401) being arranged in the inner cylinder (4), and an electromagnetic driving mechanism (5) being arranged between the inner cylinder (4) and the outer cylinder (3) to drive the inner cylinder (4) to rotate.

2. A low-resistance turbine drive structure for narrow waterways according to claim 1, characterized in that: The turbine blades (401) are spirally arranged on the inner wall of the inner cylinder (4); a shaft (402) is provided at the center of the turbine blades (401); the shaft (402) connects the turbine blades (401) into a whole.

3. A low-resistance turbine drive structure for narrow waterways according to claim 2, characterized in that: Both ends of the shaft (402) are provided with flow guides (403) to guide water to flow toward the turbine blades (401).

4. A low-resistance turbine drive structure for narrow waterways according to claim 1, characterized in that: The turbine blades (401) are discontinuous blades.

5. The low-resistance turbine drive structure for narrow waterways according to claim 1, characterized in that: Both ends of the outer cylinder (3) are bell mouths, and the position where the inner cylinder (4) is located is the position where the inner diameter of the outer cylinder (3) is the smallest.

6. The low-resistance turbine drive structure for narrow waterways according to claim 1, characterized in that: Bearings (404) are provided at both ends of the inner cylinder (4) and are connected to the outer cylinder (3).

7. A low-resistance turbine drive structure for narrow waterways according to claim 6, characterized in that: A sealing ring (405) is provided on the outside of the bearing (404) to prevent water from entering the electric drive gap (503) provided between the inner cylinder (4) and the outer cylinder (3).

8. A low-resistance turbine drive structure for narrow waterways according to claim 6 or 7, characterized in that: The outer wall of the inner cylinder (4) is provided with a plurality of permanent magnets (501), and the inner wall of the outer cylinder (3) is provided with corresponding electromagnetic coils (502); the permanent magnets (501) and the electromagnetic coils (502) constitute an electromagnetic drive mechanism (5).

9. A low-resistance turbine drive structure for narrow waterways according to claim 6 or 7, characterized in that: The outer wall of the inner cylinder (4) is provided with a plurality of excitation electromagnetic coils (504), the inner wall of the outer cylinder (3) is provided with a corresponding electromagnetic coil (502), and an induction electromagnetic coil (505) is further provided between the outer cylinder (3) and the inner cylinder (4); the induction electromagnetic coil (505) is connected to the excitation electromagnetic coil (504), and the excitation electromagnetic coil (504) and the electromagnetic coil (502) form an electromagnetic drive mechanism (5).

10. A transport ship comprising a low-resistance turbine drive structure for narrow waterways according to any one of claims 1 to 9, characterized in that: An outer flow channel (2) is provided on the hull (1), the outer flow channel (2) passes through the front and rear of the hull (1), an outer cylinder (3) is fixedly provided in the outer flow channel (2), a rotatable inner cylinder (4) is provided in the outer cylinder (3), turbine blades (401) are provided in the inner cylinder (4), and an electromagnetic drive mechanism (5) is provided between the inner cylinder (4) and the outer cylinder (3) to drive the turbine blades (401) to rotate.

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