Paddle antifouling device based on ultrasonic module

Abstract

The utility model discloses a paddle antifouling device based on an ultrasonic module, which comprises a double-paddle propeller and an ultrasonic cleaning device arranged in a ship body, two symmetrical direction adjusting blades swinging independently are arranged at the tail end of the double-paddle propeller, and a swinging antifouling blade is further arranged at the tail end of the ship body. The top of the antifouling blade is linked to an ultrasonic cleaning device in the ship body through a rotating shaft, a cavitation groove and an impact groove which are symmetrical are formed in the two side faces of the antifouling blade, an electrically-controlled rotating paddle is arranged in the cavitation groove, and an ultrasonic generator is arranged in the impact groove. After the ultrasonic cleaning device is improved, the damage to the propeller is reduced; ultrasonic waves are transmitted into water by taking the rotating paddle on the antifouling blade as a medium to cause vibration, so that a cavitation phenomenon is generated, bubbles after being buffered are broken and attached to the surface of the propeller, and the damage is smaller; the antifouling blades can also play a certain role in propelling and redirecting the ship body; and the propeller is additionally cleaned under the assistance of direct-flushing sound waves or high-pressure water flow.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship equipment technical field more specifically, it relates to the propeller anti-fouling device based on ultrasonic module. BACKGROUND

[0002] The propeller is an indispensable part of the ship propulsion system, and its performance will directly affect the sailing efficiency and safety and stability of the ship. With the passage of time, the propeller surface will accumulate dirt, seaweed, shellfish and other substances, increase the sailing resistance, lead to increased fuel consumption, reduced ship speed and high failure probability, and need to be cleaned regularly. There are mainly three ways to clean the propeller: manual cleaning, through the cleaning staff wearing diving equipment, diving to the propeller working area, and cleaning by using a grinder and other equipment; chemical cleaning, using a special cleaning agent, applying on the propeller surface, waiting for a certain period of time, and then washing with water; high-pressure water gun cleaning, reasonably controlling the water pressure to flush the dirt and attachments on the propeller surface, and trying to avoid damage to the propeller.

[0003] For example, application No. 202410483414.8 discloses a shuttle tanker propeller ultrasonic cleaning system, which comprises an ultrasonic cleaning main control box and an ultrasonic cleaning device. The ultrasonic cleaning device is installed between the tanker transmission shaft and the propeller. The ultrasonic cleaning main control box is connected with the ultrasonic cleaning device. The ultrasonic cleaning device comprises a stable transmission shaft installed between the tanker transmission shaft and the propeller. The outer side of the stable transmission shaft is provided with a fixed mounting bracket. The fixed mounting bracket is provided with a rotating transmission mechanism and an ultrasonic device. The fixed mounting bracket is also provided with a plurality of push control devices. The ultrasonic device and the stable transmission shaft are provided with a friction ash removal device, which can effectively improve the sailing speed and reduce the cleaning cost.

[0004] This design uses the ultrasonic waves conducted by the propeller to contact seawater, directly generating more bubbles on the propeller to clean the attachments. However, according to Bernoulli's law, the propeller itself has a cavitation effect. This design undoubtedly aggravates the erosion of the metal material on the surface of the propeller. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a propeller anti-fouling device based on an ultrasonic module to solve one or more of the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a ship propeller antifouling device based on ultrasonic module, including double -paddle propeller and ultrasonic cleaning device of setting in the ship body interior, the end of double -paddle propeller is equipped with two symmetrical and single swing's steering blade, the ship body tail end is equipped with swing's antifouling blade, and the antifouling blade is in the front end of the intermediate area of two steering blades, the top of antifouling blade is linked to ultrasonic cleaning device in the ship body interior through pivot, the both sides of antifouling blade are equipped with the symmetrical cavitation groove and impact groove, the cavitation groove and impact groove are staggered, and the cavitation groove is equipped with electrically -controlled rotating paddle, and the impact groove is equipped with ultrasonic generator.

[0008] Further, the antifouling blade and the two steering blades are symmetrically arc-shaped, and the cavitation groove and the impact groove are both curved grooves inclined to the two sides.

[0009] Further, the corners of the impact groove and the cavitation groove are provided with detachable thickened plates, and the inclination angle of the impact groove and the cavitation groove is not less than 13°.

[0010] Further, the pivot or the transmission part of the pivot contacts the ultrasonic cleaning device in the ship body interior, and the rotating paddle or the transmission part of the rotating paddle contacts the pivot.

[0011] Further, the antifouling blade rotates left and right through the pivot, and the rotating paddle is freely started and stopped.

[0012] Further, there is a gap between the two propellers of the double-paddle propeller, and each propeller is externally provided with a fixed frame surrounded by a ring and penetrating through front and back, and the fixed frame is provided at the end with the steering blade, and the steering blade is opposite to the center of the propeller.

[0013] Further, the number of the cavitation grooves is less than the number of the impact grooves, and the curvature of the side surface of the antifouling blade is greater than the curvature of the side surface of the steering blade.

[0014] Further, the ultrasonic generators in the impact grooves are all or partially replaced by high-pressure water flow emitters.

[0015] In summary, the utility model has the following beneficial effects: by improving the ultrasonic cleaning device, the device acts on the additionally added antifouling blade, avoiding the direct action on the propeller to intensify the cavitation phenomenon and expand the damage to the propeller; the ultrasonic wave is transmitted into the water through the rotating paddle on the antifouling blade as a medium to cause vibration, thereby generating a cavitation phenomenon at the rotating paddle, and the bubbles after buffering are broken on the surface of the propeller to remove the adhesion and cause less damage; the antifouling blade itself can also play a role in propelling and changing the direction of the ship body; supplemented by the straight impact form of sound wave or high-pressure water flow to additionally clean the propeller. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic diagram of one embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the anti-fouling leaf in one embodiment of the present invention;

[0018] Figure 3 A cross-sectional view of a hollow bubble tank in one embodiment of this utility model;

[0019] Figure 4 This is a cross-sectional view of the impact groove in one embodiment of the present invention.

[0020] In the diagram: 1. Twin-bladed propeller; 2. Directional blade; 3. Anti-fouling blade; 4. Shaft; 5. Cavitation chamber; 6. Impact chamber; 7. Rotary propeller; 8. Mounting frame. Detailed Implementation

[0021] Example:

[0022] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0023] Ultrasonic module-based antifouling device for propellers, such as Figure 1 As shown, the main components are a twin-propeller propeller 1 located at the stern and an ultrasonic cleaning device installed inside the hull. The ultrasonic cleaning device is a known existing structural device. The ultrasonic generator, through multi-stage pushing and transmission, can stably output ultrasonic waves to a designated component. The twin-propeller propeller 1 is a symmetrical propeller propulsion device located underwater at the stern. The two propellers are connected to the hull via a fixed frame 8, which is a continuous ring structure. A gap is provided between the two propellers. At the rear center of each propeller is a directional vane 2 connected to the fixed frame 8. The two directional vanes 2 can be controlled to rotate and swing left and right, and are positioned directly opposite the propellers. Figure 2 As shown, a fouling-resistant blade 3, which can be controlled to rotate and swing left and right, is also provided between the two directional blades 2. The fouling-resistant blade 3 is located in the area between the two directional blades 2 and is positioned in front of the twin-bladed propeller 1. Both the fouling-resistant blade 3 and the two directional blades 2 are symmetrical components with curved sides, and the curvature of the side of the fouling-resistant blade 3 is greater than that of the side of the directional blades 2. A rotating shaft 4 is provided at the top of the fouling-resistant blade 3, and the fouling-resistant blade 3 is linked to the hull through the rotating shaft 4. At the same time, the ultrasonic cleaning device also contacts the fouling-resistant blade 3 through the rotating shaft 4. The fouling-resistant blade 3 rotates left and right through the rotating shaft 4. Figure 3 and Figure 4As shown, the side of the anti-fouling blade 3 is provided with two groups of symmetrical cavitation grooves 5 and three groups of symmetrical impact grooves 6, the cavitation grooves 5 and the impact grooves 6 are vertically staggered. The cavitation grooves 5 and the impact grooves 6 are both inclined to the rear two sides. The cavitation grooves 5 are provided with rotating paddles 7, each rotating paddle 7 is controlled independently and can be started and stopped freely. The impact grooves 6 are provided with conventional ultrasonic generators or high-pressure water flow generators. The inclination angles of the impact grooves 6 and the cavitation grooves 5 are not less than 13°, which is to have better buffering and larger coverage. Because the curvature and size of the anti-fouling blade 3 are fixed, the actual range of action is determined by the inclination angles of the two grooves when the anti-fouling blade 3 rotates left and right. In theory, the greater the inclination angle, the greater the range of action, but the influence will decrease with the increase of the range of action in the trend of a parabola. Therefore, the relationship between the inclination angle, the range of action and the influence degree should be reasonably considered. In order to reduce the loss, the thickened plates are provided at the corners of the impact grooves 6 and the cavitation grooves 5, which can be detached. The most impacted area inside the groove body is protected by consuming the thickened plates, and the replacement of the thickened plates reduces the maintenance of the groove body and the replacement frequency of the anti-fouling blade 3. The rotating shaft 4 or the transmission member of the rotating shaft 4 contacts the ultrasonic cleaning device inside the ship body, and the rotating paddle 7 or the transmission member of the rotating member contacts the rotating shaft 4, so that the ultrasonic waves generated by the ultrasonic cleaning device can be smoothly transmitted to the rotating paddle 7 through the rotating shaft 4.

[0024] The whole device can operate in the running or parking state, and the operation of the rotating paddle 7 is not enough to drive the whole ship to run forward. The impact groove 6 is designed to contact with the water body, and the ultrasonic wave is dispersed to the two sides along the groove body, forming a directional shock wave. Due to the adjustable rotation of the anti-fouling blade 3, the two sides of the propeller can be cleaned and descaled according to certain rules or directly manually adjusted. If the high-pressure water flow emitter is set, the water flow in the form of impact is directly formed to clean and descale. The effects of the two are similar and can coexist. The cavitation groove 5 is designed with a smaller rotating paddle 7, which is equivalent to transferring the ultrasonic wave transmission step from the propeller to the rotating paddle 7 with relatively low importance. When the ultrasonic wave is emitted from the rotating paddle 7, it contacts with the seawater to produce cavitation phenomenon. The bubbles pass through the seawater buffer between the propeller and the propeller, and then break to produce shock wave cleaning and flushing of the inner and outer surfaces of the workpiece. Due to the divergence, it also plays a convection role, which can prevent microorganisms or other sources from contacting the propeller, reduce the accumulation of dirt and adsorbents, and play a role in preventing pollution. The detachable thickened plate is installed at the corner where the impact groove 6 and the cavitation groove 5 are most severely worn, which protects the structure of the anti-fouling blade 3. The controllable left and right rotation of the anti-fouling blade 3 and the separate control of the rotating paddle 7 can promote cleaning and directional cleaning, and the range is enough to cover two propeller screws and most of the fixed frame 8. The anti-fouling blade 3 itself can be used as a special steering blade 2, which can achieve multiple purposes. The whole design can work in running and parking, and can clean and remove dirt in running and parking, which greatly reduces the limitations. Not only can it improve the sailing efficiency, but also can reduce the difficulty of maintenance and reduce the frequency of personnel diving cleaning.

[0025] It should be noted that the specific embodiments are merely an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make non-creative modifications to the embodiments according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. An ultrasonic module-based anti-fouling device for a ship propeller, comprising a twin propeller thruster (1) and an ultrasonic cleaning device arranged inside the ship body, characterized in that: The end of the double propeller (1) is provided with two symmetrical and single swing rudder blades (2), the tail of the ship body is also provided with a swing anti-pollution blade (3), the anti-pollution blade (3) is in the front end of the intermediate region of the two rudder blades (2), the top of the anti-pollution blade (3) is linked to the ultrasonic cleaning device inside the ship body through the rotating shaft (4), the two sides of the anti-pollution blade (3) are provided with symmetrical cavitation groove (5) and impact groove (6), the cavitation groove (5) and the impact groove (6) are staggered, the cavitation groove (5) is provided with an electrically controlled rotating paddle (7), and the impact groove (6) is provided with an ultrasonic generator.

2. The ultrasonic module-based marine propeller fouling prevention apparatus according to claim 1, characterized in that: The anti-pollution blade (3) and the two rudder blades (2) are symmetrical arc-shaped sides, and the cavitation groove (5) and the impact groove (6) are both curved groove structures that are inclined to the two sides of the rear.

3. The ultrasonic module-based marine propeller fouling prevention apparatus according to claim 2, characterized in that: The corner of the impact groove (6) and the cavitation groove (5) is provided with a detachable thickened plate, and the inclination angle of the impact groove (6) and the cavitation groove (5) is not less than 13°.

4. The ultrasonic module-based marine propeller fouling prevention apparatus according to claim 1, characterized in that: The rotating shaft (4) or the transmission part of the rotating shaft (4) contacts the ultrasonic cleaning device inside the ship body, and the rotating paddle (7) or the transmission part of the rotating paddle (7) contacts the rotating shaft (4).

5. The ultrasonic module-based marine propeller fouling prevention apparatus according to claim 1, characterized in that: The anti-pollution blade (3) rotates left and right through the rotating shaft (4), and the rotating paddle (7) is freely started and stopped.

6. The ultrasonic module-based marine propeller fouling prevention apparatus of claim 1, wherein: There is a gap between the two propellers of the double propeller (1), and each propeller is provided with a fixed frame (8) which is annularly surrounded and penetrates front and back, and the end of the fixed frame (8) is provided with the rudder blade (2), and the rudder blade (2) faces the center of the propeller.

7. The ultrasonic module-based marine propeller fouling prevention apparatus of claim 1, wherein: The number of cavitation grooves (5) is less than the number of impact grooves (6), and the curvature of the side of the anti-pollution blade (3) is greater than the curvature of the side of the rudder blade (2).

8. The ultrasonic module-based marine propeller fouling prevention apparatus according to claim 1, characterized in that: The ultrasonic generator in the impact groove (6) is all or partially replaced by a high-pressure water flow emitter.

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