DEVICE FOR REMOVING OIL RESIDUALS FROM TANKS Russian patent published in 2004 - IPC

FIELD: oil industry.

SUBSTANCE: device has vacuum pump, whose pressure pipe line is connected to one of branch pipes in the cover of the neck of the collecting vessel through a valve. The sucking pipe line of the vacuum pump is connected with a shutoff device through another valve. The shutoff device is mounted in the other branch pipe in the covering of the neck of the collecting vessel. The intake device is made for permitting movement over the bottom of the tank to be cleaned and is provided with valving and control means and is connected with the branch pipe in the bottom part of the collecting vessel through a valve. The intake device is made of a detachable nozzle provided with a hollow handle and is made of a cylindrical sleeve whose outer side is provided with a ring buoy embracing the cylindrical sleeve for sliding The bottom of the buoy is provided with the first ring sealing member. The side generatrix of the sleeve is provided with intake ports, the total area of which is no less than the area of the inner cross-section of the cylindrical sleeve.

EFFECT: enhanced efficiency.

2 dwg