CN113277029B - Device and method for cleaning marine ship deck through supercharged cavitation - Google Patents

Abstract

The invention relates to the field of cavitation cleaning, in particular to a device and a method for cleaning the surface of a deck by utilizing cavitation bubbles. The innovative points are that the marine vessel deck cleaning and rust removing device which can be adsorbed on the surface of a deck and still can normally work when a ship body is severely shaken is designed, and a brand new method for improving the cavitation effect by adjusting the pressure of a cleaning cabin and respectively carrying out rough cleaning and fine cleaning and rust removing on the deck by utilizing ultrasonic cavitation and laser cavitation technologies is provided, so that the fixed-point cleaning and rust removing of the deck can be realized, and the rust removing efficiency is improved.

Description

A device and method for pressurized cavitation cleaning marine ship deck

technical field

The invention belongs to cavitation cleaning and derusting technology, and particularly relates to a device and method for pressurized cavitation cleaning marine ship deck, which can clean the deck in harsh marine environment.

Background technique

When the ultrasonic wave acts on the liquid, tens of thousands of small bubbles can be generated. The bubbles existing in the liquid vibrate under the action of the sound field to generate shock waves and high-speed jets that act on the wall surface, causing cavitation and peeling of the wall surface. The principle of laser cavitation is similar to this. When the laser acts on the liquid, if the laser energy reaches the breakdown threshold of the liquid medium, the liquid will be broken down to generate a plasma cavity, and the plasma cavity will continue to absorb the laser energy, which will accelerate the expansion to form vacuoles. When the cavitation moves near the solid-liquid interface, due to the pressure difference between the two sides of the cavitation, the cavitation will produce a "wall-trending" effect. During the pulsation and collapse of the cavitation, it is accompanied by shock waves and water jets, which form a mechanical effect on the surface of the material. , so as to achieve the cleaning function.

The increase of pressure can enhance the effect of cavitation. By increasing the pressure of the cleaning chamber, the mechanical effect of cavitation on the wall surface can be enhanced, thereby enhancing the cleaning and derusting effect, which is of great significance in the field of cavitation cleaning. The related literature and patents of the method and apparatus have not been searched.

In the actual cleaning process, due to the harsh environment on the sea surface, the hull is often subjected to violent shaking, and the cleaning of the deck cannot be carried out normally, and the deck must be cleaned regularly.

SUMMARY OF THE INVENTION

The invention proposes a device and method for a pressurized cavitation cleaning marine ship deck, which thoroughly cleans and removes rust on the deck and meets the all-weather cleaning requirements at the same time.

In order to achieve the above purpose of the invention, the technical solution adopted in the present invention is as follows: a pressurized cavitation cleaning device for marine ship decks, including an adsorption system, a cleaning system, a pressurization system, a water absorption system, a heating system and a moving system, which It is characterized in that the adsorption system includes a bracket, four vacuum suction cups are installed around the bracket, a cleaning chamber is installed under the bracket, a sealing ring is installed at the bottom of the cleaning chamber, and the bracket and the cleaning chamber are connected by springs, After the vacuum suction cup is evacuated, it is firmly adsorbed on the deck and drives the bracket to press down to seal and fix the cleaning cabin.

In the above solution, the cleaning system includes an ultrasonic vibration plate, and the ultrasonic vibration plate is connected with a pulling rope, and the pulling rope is wound around the pulley on the drum, and the drum is connected with a motor, and the electric motor is used to drive the drum. After the rotation, the ultrasonic vibration plate is turned over. The ultrasonic vibration plate and the hinge are connected to the ultrasonic vibration plate and are limited by the support plate. The hinge is pushed by the electric push rod, so that the ultrasonic vibration plate can move laterally. Coarse cleaning and rust removal of decks by inducing cavitation in water. The cleaning system further includes a three-dimensional guide rail, a laser head is installed on the three-dimensional guide rail, an underwater camera and an underwater lighting lamp are arranged on the laser head, and the cleaning cabin is connected with a water pump and a water tank through a water inlet pipe. The laser head emits a laser beam that penetrates the water above the deck to generate cavitation to clean and derust the deck at a fixed point, and the underwater camera is used to monitor the cleaning effect.

In the above solution, the supercharging system includes an air source, a micro-mass flow meter, and an intake valve. The air source, the micro-mass flow meter, the air inlet valve and the cleaning chamber are communicated through an air inlet pipe.

In the above solution, the water suction system includes a water suction plate, a spring is arranged on the water suction plate, the water suction plate is pressed on the deck under the action of the spring after the vacuum suction plate works, and the water suction plate is connected with the air pump through the water outlet pipe, A sewage storage tank is connected to the end of the water outlet pipe.

In the above solution, the heating system includes a resistance wire, the resistance wire is wound on the inner wall of the cleaning cabin, and the resistance wire heats the cleaning cabin and then dries the deck, so as to prepare for the subsequent manual spraying of anti-rust paint. The temperature inside the cleaning chamber is controlled by a thermocouple.

In the above solution, the moving system includes a universal wheel bracket, the universal wheel bracket is fixed with a universal wheel, the upper part of the universal wheel bracket is connected with a spring, and the universal wheel bracket is fixed by a limit pin.

The present invention also provides a method for pressurized cavitation cleaning marine vessel deck, comprising the following steps:

1) Fixed sealed cleaning cabin: the vacuum suction cup is adsorbed on the deck surface after being evacuated, the suction cup is in contact with the deck surface under the action of the upper spring, and the limit pin of the universal wheel bracket is pulled out to move the universal wheel bracket upward.

At the same time, the bracket moves downward, and under the combined action of the spring and the bracket, the cleaning cabin is firmly fixed on the deck and maintains a good seal.

2) Inject the aqueous solution into the cleaning chamber to a certain height, and open the intake valve to pressurize the cleaning chamber.

3) Coarse wash. When the ultrasonic vibration plate is turned on, the ultrasonic vibration plate is moved laterally to induce several cavities in the water, and the deck is cleaned and derusted by the force effect generated by the pulsation of the cavitation near the deck. After rough cleaning of the deck, the motor drives the drum to rotate, and the pull rope drives the ultrasonic vibration plate to turn over, so that the ultrasonic vibration plate is vertically attached to the side wall of the cleaning cabin.

4) Fine wash. When the laser head works, the movement of the three-dimensional slide rail is controlled to adjust the movement track of the laser head. The laser head emits a high-energy laser beam and then penetrates the aqueous solution to generate cavitation to clean the deck and remove rust.

5) After cleaning and derusting, the air pump works, the suction tray starts to absorb sewage, and the sewage is stored in the sewage storage tank.

6) Deck dry. The heating resistance wire is used to heat up the interior of the cleaning cabin to dry the deck in preparation for the subsequent spraying of anti-rust paint.

7) Move the cleaning chamber. The vacuum suction cup stops working, the universal wheel bracket returns to its original position under the action of the spring above it, and the limit pin is inserted to fix the universal wheel bracket, the cleaning cabin is suspended from the deck, and then the cleaning cabin is pushed to move.

In the above scheme, the air intake flow is observed by a micro mass flow meter, the pressure in the cleaning cabin is controlled by a pressure control device, the rust removal effect of the deck is monitored by an underwater camera, and the obtained pictures are processed by a computer to identify the rust removal effect.

The specific advantages of the present invention are as follows: (1) Using a pressurization system composed of a pressure control device, an air source, a micro mass flowmeter, an intake valve and a cleaning chamber, the pressure in the chamber can be controlled, and the pressure in the cleaning chamber can be enhanced by pressurizing the cleaning chamber. The mechanical effect of laser-induced cavitation, thereby enhancing the effect of cleaning and rust removal. (2) Combining ultrasonic cavitation and high-tech technology to carry out rough cleaning and fine cleaning of the deck respectively, which not only solves the problem of incomplete ultrasonic cavitation cleaning, but also overcomes the drawbacks of low efficiency of laser cavitation cleaning. Improve the cleaning and rust removal efficiency. (3) The cleaning cabin is fixed and sealed on the deck through the adsorption system, and the cleaning and rust removal work can not be restricted by environmental factors, and can achieve all-weather work requirements.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a device for pressurized cavitation cleaning the deck of an offshore ship.

Fig. 2 is a top view of a device for pressurized cavitation cleaning the deck of an offshore ship.

FIG. 3 is a partial schematic diagram of part A in FIG. 2 .

4 is a schematic diagram of a pressurized cavitation cleaning marine vessel deck moving device.

In the picture: 1-support; 2-vacuum suction cup; 3-air source; 4-micro mass flowmeter; 5-water tank; 6-water inlet pipe; 7-water pump; 8-inlet valve; 9-cavitation; 10- Support plate; 11-ultrasonic vibration plate; 12-cleaning cabin; 13-three-dimensional slide rail; 14-spring; 15-laser head; 16-underwater camera; 17-underwater lighting; 18-thermocouple; 19-pressure control Device; 20- pulley; 21- resistance wire; 22- rope; 23- drum; 24- sealing ring; 25- deck; 26- motor; 27- sewage storage tank; 28- outlet pipe; 29- air pump; 30- Spring; 31- suction plate; 32- universal wheel bracket; 33- electric push rod; 34- hinge; 35- universal wheel; 36- spring; 37- limit pin.

Detailed ways

The technical solutions of the present invention will be described in more detail below with reference to the accompanying drawings.

As shown in Figure 1, Figure 2 and Figure 3, a pressurized cavitation cleaning device for marine ship decks of the present invention includes an adsorption system, a cleaning system, a pressurization system, a water absorption system, a heating system and a moving system, The adsorption system includes a bracket 1, four vacuum suction cups 2 are installed around the bracket 1, a cleaning chamber 12 is installed below the bracket 1, a sealing ring 24 is installed at the bottom of the cleaning chamber 12, the bracket 1 and the cleaning chamber 12 Connected by the spring 14 , the vacuum suction cup 2 is firmly adsorbed on the deck 25 after being evacuated, and then drives the bracket 1 to press down so as to seal and fix the cleaning chamber 12 . The cleaning system includes an ultrasonic vibration plate 11, and the ultrasonic vibration plate 11 is connected with a pull rope 22, and the pull rope 22 is wound around the pulley 20 on the drum 23, and the drum 23 is connected with the motor 26, and the motor 26 is used to drive the rotation of the drum 23 to drive the ultrasonic vibration plate 11 to turn over. The ultrasonic vibration plate 11 and the hinge 34 are connected to the ultrasonic vibration plate 11 and are limited by the support plate 10. The hinge 34 is pushed by the electric push rod 33 to make the The ultrasonic vibration plate 11 can move longitudinally, and the ultrasonic vibration plate 11 induces cavitation in the water to perform rough cleaning and rust removal on the deck. The cleaning system further includes a three-dimensional guide rail 13, the three-dimensional guide rail 13 is installed with a laser head 15, the laser head 15 has an underwater camera 16 and an underwater lighting lamp 17, and the cleaning chamber 12 passes through the water inlet pipe 6 and the water pump. 7 and the water tank 5 are connected. The laser head 15 emits a laser beam that penetrates the water above the deck to generate cavitation to clean the deck 25 at a fixed point and remove rust. The underwater camera 16 is used to monitor the cleaning effect. The supercharging system includes an air source 3 , a micro-mass flow meter 4 , and an intake valve 8 . The air source 3, the micro-mass flow meter 4, the intake valve 8 and the cleaning chamber 12 are communicated through an intake pipe. The water suction system includes a suction cup 31 with a spring 30 on the suction cup 31. After the vacuum suction cup 2 works, the suction cup 31 is pressed on the deck 25 under the action of the spring 30, and the suction cup 31 passes through the water outlet pipe. 28 is connected to an air pump 29, and a sewage storage tank 27 is connected to the end of the water outlet pipe 28. The heating system includes a resistance wire 21, which is wound on the inner wall of the cleaning cabin 12, and the resistance wire 21 heats the cleaning cabin 12 and then dries the deck 25, so as to prepare for the subsequent manual spraying of anti-rust paint. , the temperature inside the cleaning chamber 12 is monitored by the thermocouple 18 . The moving system includes a universal wheel bracket 32, the universal wheel bracket 32 is fixed with a universal wheel 35, the upper part of the universal wheel bracket 32 is connected with a spring 37, and the universal wheel bracket 32 is fixed by a limit pin 36. fixed.

Specific embodiment: the vacuum suction cup is sucked on the deck surface after being evacuated, the suction cup is in contact with the deck surface under the action of the upper spring, and the limit pin of the universal wheel bracket is pulled out, so that the universal wheel bracket moves up, and the bracket downwards at the same time Movement, under the combined action of springs and brackets, the cleaning tank is firmly fixed on the deck and maintains a good seal; the water solution is injected into the cleaning tank to a height of 50 mm from the deck surface, and the intake valve is opened to increase the cleaning tank. pressure, observe the intake flow from the micro mass flowmeter, control the pressure in the cleaning chamber through the pressure control device, open the intake valve to pressurize the cleaning chamber to 0.5MPa; open the ultrasonic vibration plate and move the ultrasonic vibration plate longitudinally to make it Several cavitations are induced in the water, and the cavitation is used to pulsate near the deck to produce force effect to clean and derust the deck. After rough cleaning of the deck, the motor drives the drum to rotate, and the pull rope drives the ultrasonic vibration plate to turn over, so that the ultrasonic vibration plate is vertically attached to the side wall of the cleaning cabin. Then start the fixed-point fine cleaning and rust removal of the deck, the laser head works, adjust the laser energy to 250 mJ, and control the movement of the three-dimensional slide rail to adjust the movement trajectory of the laser head. Clean and rust the deck. At the same time, the underwater camera shoots the rust removal of the deck, and continues to use the laser beam to clean the areas with poor rust removal effect. After the rust removal is completed, the air pump works, the suction tray starts to absorb the sewage, and the sewage is stored in the sewage storage tank. Next, the deck is dried, the resistance wire is heated, and the interior of the cleaning cabin is heated up to dry the deck in preparation for the subsequent spraying of anti-rust paint. Finally, the vacuum suction cup stops working, the universal wheel bracket is restored to its original position under the action of the spring above it, and the limit pin is inserted to fix the universal wheel bracket, the cleaning cabin is suspended from the deck, and then the cleaning cabin is pushed to move to the next rust removal area. .

Claims (7)

1. A device for a pressurized cavitation cleaning marine vessel deck, comprising an adsorption system, a cleaning system, a pressurization system, a water absorption system, a heating system and a mobile system, wherein the adsorption system comprises a bracket (1) , four vacuum suction cups (2) are installed around the bracket (1), a cleaning cabin (12) is installed under the bracket (1), a sealing ring (24) is installed at the bottom of the cleaning cabin (12), and the bracket (1) The cleaning chamber (12) is connected by a spring (14), and the vacuum suction cup (2) is evacuated and firmly adsorbed on the deck (25) and then drives the bracket (1) to be pressed down so as to press the cleaning chamber (12). ) is sealed and fixed; the cleaning system includes an ultrasonic vibration plate (11), the ultrasonic vibration plate (11) is connected with a pull rope (22), and the pull rope (22) is wound around the pulley (20) and wound on the drum ( 23), the drum (23) is connected to a motor (26), the motor (26) is used to drive the drum (23) to rotate and then drive the ultrasonic vibration plate (11) to turn over, the ultrasonic vibration plate (11) and A hinge (34) is connected, the ultrasonic vibration plate (11) is limited by the support plate (10), and the hinge (34) is pushed by an electric push rod (33), so that the ultrasonic vibration plate (11) can move laterally , the ultrasonic vibration plate (11) induces cavitation (9) in the water to perform rough cleaning and rust removal on the deck; the cleaning system further comprises a three-dimensional guide rail (13), and the three-dimensional guide rail (13) is installed with a laser head ( 15), the laser head (15) is provided with an underwater camera (16) and an underwater lighting lamp (17), and the cleaning cabin (12) passes through a water inlet pipe (6), a water pump (7) and a water tank (5) connected; the laser head (15) emits a laser beam that penetrates the water above the deck to generate cavitation to perform fixed-point cleaning and rust removal on the deck (25), the underwater camera (16) and the underwater lighting (17) It is used to observe the cleaning effect; the pressurization system includes an air source (3), a micromass flowmeter (4), and an intake valve (8); the air source (3), the micromass flowmeter (4), the inlet The air valve (8) is communicated with the cleaning chamber (12) through an air intake pipe. 2 . The device for pressurized cavitation cleaning the deck of an offshore ship according to claim 1 , wherein the water suction system comprises a suction plate (31), and a spring (31) is arranged on the suction plate (31). 3 . 30), the suction plate (31) is pressed on the deck (25) under the action of the spring (30) after the vacuum suction plate (2) works, and the suction plate (31) passes through the water outlet pipe (28) and the air pump ( 29) connection, the end of the water outlet pipe (28) is connected with a sewage storage tank (27). 3. A device for pressurized cavitation cleaning marine vessel deck according to claim 1, characterized in that, the heating system comprises a resistance wire (21), and the resistance wire (21) is wound around the The inner wall of the cleaning cabin (12), the resistance wire (21) heats the cleaning cabin (12) and then dries the deck (25), so as to prepare for the subsequent manual spraying of anti-rust paint. The temperature is monitored by a thermocouple (18). 4. A device for pressurized cavitation cleaning marine vessel deck according to claim 1, characterized in that, the moving system comprises a universal wheel bracket (32), the universal wheel bracket (32) A universal wheel (35) is fixed, the upper part of the universal wheel bracket (32) is connected with a spring (37), and the universal wheel bracket (32) is fixed by a limit pin (36). 5. A method for cleaning the deck of an offshore ship by utilizing the pressurized cavitation device for cleaning the deck of an offshore ship according to claim 1, comprising the following steps: 1) fixing a sealed cleaning cabin: vacuum suction cups are evacuated and adsorbed on the deck Under the action of the upper spring, the suction plate is in contact with the surface of the deck, and the limit pin of the universal wheel bracket is pulled out, so that the universal wheel bracket moves up, and the bracket moves downward at the same time, and the cabin is cleaned under the combined action of the spring and the bracket. It is firmly fixed on the deck and maintains a good seal. 2) Inject an aqueous solution into the cleaning cabin to a certain height, and open the intake valve to pressurize the cleaning cabin; 3) Rough cleaning; open the ultrasonic vibration plate while longitudinally Move the ultrasonic vibration plate to induce several cavities in the water, and use the force effect of the cavitation near the deck to clean and derust the deck; after rough cleaning of the deck, the motor drives the drum to rotate, and the pull rope drives the ultrasonic vibration. The plate is turned over, so that the ultrasonic vibration plate is vertically attached to the side wall of the cleaning chamber; 4) Fine cleaning; the laser head works, and the movement of the three-dimensional slide rail is controlled to adjust the movement trajectory of the laser head. After the laser head emits a high-energy laser beam and breaks down the aqueous solution The deck is cleaned and derusted by generating cavitation; 5) After cleaning and derusting, the air pump works, the suction tray begins to absorb sewage, and the sewage is stored in the sewage storage tank; After warming up, let the deck dry to prepare for the subsequent spraying of anti-rust paint; 7) Move the cleaning cabin; the vacuum suction cup stops working, the universal wheel bracket returns to its original position under the action of the spring above it, and the limit pin is inserted to make the universal wheel The bracket is fixed, the cleaning cabin is suspended from the deck, and then the cleaning cabin is pushed to move. 6 . The method according to claim 5 , wherein the intake air flow is observed by a micro mass flowmeter, and the pressure in the cleaning chamber is controlled by a pressure control device, the pressure control device being composed of a pressure sensor and a pressure controller. 7 . 7. method according to claim 5, is characterized in that, the derusting effect of deck is monitored by underwater camera, after underwater camera is photographed and has finished the area of rough washing and derusting, the picture obtained is identified and removed after computer processing. Rust effect, use laser beam fixed-point cleaning for areas with poor rust removal effect.

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