DEVICE TO CLEAN POND FROM RADIOACTIVE BOTTOM DEPOSITS Russian patent published in 2014 - IPC G21F9/34 

FIELD: construction.

SUBSTANCE: invention relates to nuclear power industry, in particular, to facilities for rehabilitation of environment when liquidating ponds with radioactive bottom deposits. The device for clean the pond from radioactive bottom deposits comprises a platform mounted on a pontoon with supports and a frame installed in supports with the possibility of vertical displacement with a receiving chamber made in the form of a rectangular tilted vessel. Suction nozzles of two pulsation valve submersible pumps, pumping and mixing, are submerged into the receiving chamber. The receiving chamber is connected to a compensating vessel that communicates via a filter to atmosphere, and via a check valve - to the pond. The injection pipeline of the mixing pulsation valve submersible pump is connected with a system of nozzles placed in a special manner inside the receiving chamber. The compressor is installed on the shore and is connected with a receiver, which is a part of pontoon vessels, with a flexible pipeline placed on floats. Operation of pumps is provided by air distributing devices, each comprising two valves, one valve is connected to a receiver, and the second one - via the filter to the ejector installed on the pontoon.

EFFECT: possibility to use jet erosion of bottom deposits and their discharge by pulsation pumps having high reliability.

5 cl, 4 dwg