Underwater cavitating cleaner for ship

Abstract

The invention discloses an underwater cavitating cleaner for a ship, consisting of a hand slap bracket, a disc-shaped shell, a hollow rotary shaft, a cleaning effuser, a high pressure liquid input pipe and a propelling effuser. A plurality of water inlets are arranged at the top of the disc-shaped shell. The hand slap bracket is arranged on the upper side of the disc-shaped shell and connected with the disc-shaped shell. The hollow rotary shaft is arranged on the disc-shaped shell. The cleaning effuser is arranged in the disc-shaped shell and communicated with the hollow rotary shaft. A turbine nozzle is arranged at the end of the cleaning effuser. The high-pressure liquid input pipe and the propelling effuser are respectively communicated with the hollow rotary shaft and located on the upper side of the disc-shaped shell. The high pressure liquid input pipe and the propelling effuser are provided with control valves, respectively. The invention has the advantages of high cleaning efficiency, safety and reliability and is suitably used on irregular and hardly-closed surfaces. By using the cleaner, hard pollutants are cleaned more rapidly than by other methods. Paint is not damaged during cleaning, and secondary pollution to environment can be avoided.

Description

technical field [0001] The invention relates to a ship cleaning device, in particular to a ship underwater cavitation cleaning device. Background technique [0002] When the boat enters the water and comes into contact with seawater, the bacteria will immediately adhere to the hull. This process only takes a few minutes and is irreversible, and these attached bacteria will not be washed away by the sea current. Over the next few hours the number of bacteria begins to increase exponentially. After a few days, a layer of biofilm like green ooze will form on your boat. At this time, the pollution of the hull will really start. This layer of biofilm is like a key that opens the way for other marine organisms to attach. Doors, such as barnacles. Once the hull is fouled, the efficiency of the boat decreases and fuel consumption increases significantly due to the increased resistance of the water. The US Navy has done several experiments with their USSWhippleshaft and found tha...

AI Technical Summary

Problems solved by technology

For example, the efficiency of the human scraper is low and the cleaning effect is poor; the cleaning brush can only be used on a large area of ​​flat surface, but it is powerless to irregular surfaces, but the high-pressure oil may leak during the cleaning process, causing harm to divers and the environment.

The cleaning brush will also damage the paint on the surface of the object to be cleaned, especially when cleaning the surface of the hull, the cleaning brush will wear off a large amount of antifouling paint, and the heavy metal ions and other harmful substances in it will cause harm to the water environment.

Although mechanical cleaning brushes are much faster than human spatulas, they need to be constantly stopped to clean and replace brushes during the cleaning process; ultra-high-pressure injection is very dangerous and inefficient, and can only be used on small areas of unpainted surfaces On; underwater sandblasting is also not applicable on the painted surface and will also produce secondary pollution

Images