Recuperation system for underwater cleaning operations

Abstract

Device for cleaning an underwater lying surface, wherein the device comprises a movable frame with at least one rotating brush which allows the device to pressed against or sucked against said surface during movement of the device, wherein furthermore a drive for the brush or brushes is provided, wherein the device is provided with means which prevent that particles that are released during cleaning of the surface, spread around in the water flowing around the surface and around the device.

1 . Device for cleaning a surface located underwater, comprising a movable frame having at least one rotating cleaning brush; said frame enabling the device to be pressed against or sucked against said surface during movement of the device; a drive for the brush or brushes; and means for preventing particles that are released by the brush or brushes during cleaning of the surface to be dispersed in the water surrounding the surface and around the device. 
     
     
         2 . Device according to  claim 1 , including an enclosure wherein said brushes are arranged and which is at least partially defined by a hard upstanding edge with a sealing edge comprising a synthetic material providing a sealing contact with the surface to be cleaned and which defines a space wherein the brushes may be in contact with the surface to be cleaned. 
     
     
         3 . Device according to  claim 1 , wherein said means for preventing particles to be spread comprises a collecting reservoir with an inlet and an outlet for water, said inlet in communication with said space and the outlet terminating outside of the device; and including a filter arranged to catch the released particles disposed between said inlet and outlet. 
     
     
         4 . Device according to  claim 3 , wherein the collecting device is secured in a detachable way to the device. 
     
     
         5 . Device according to  claim 3 , wherein the collecting reservoir is detachable from the device by means of quick-release couplings. 
     
     
         6 . Device according to  claim 3 , including a prefilter in the inlet. 
     
     
         7 . Device according to  claim 3 , wherein the inlet comprises a constriction. 
     
     
         8 . Device according to  claim 3 , including a rotatable screw in the collecting reservoir arranged when driven to discharge water from said enclosure through said collecting reservoir with filter. 
     
     
         9 . Device according to  claim 8 , wherein the screw is provided in the inlet. 
     
     
         10 . Device according to  claim 8 , including a non-return valve between the screw and the collecting reservoir. 
     
     
         11 . Device according to  claim 1 , including one or more driving wheels and at least one steering wheel. 
     
     
         12 . Device according to  claim 1 , wherein the upstanding edge is interrupted on one side.