DROP CATCHER FOR CENTRIFUGAL COMPRESSOR Russian patent published in 2014 - IPC B01D45/14 F01D5/14 F04D25/00 F04D29/00 

FIELD: machine building.

SUBSTANCE: group of inventions relates to a centrifugal compressor, in particular, to drop catchers to remove liquid from a compressor as well as to the method to improve efficiency of centrifugal compressor performance in gas turbine engines. A device for catching liquid drops set in the compressor impeller comprises the first hole set on the impeller surface and made so that to receiver liquid drops, and a channel set below the said hole and communicating with it by flow. The channel is made so that the liquid drops are led out from the first hole and the compressor impeller. A centrifugal compressor set in a gas turbine engine comprises a centrifugal impeller which includes rotating solid blades each of them having a root part and an end part and providing for air compression in the centrifugal gravitational field, and units for catching the liquid drops. According to the method for improving the efficiency of centrifugal compressor performance by the removal of liquid drops, a liquid drop catching device is installed in the part of the centrifugal impeller effective from the point of view of catching the liquid drops in the place of their collision with the centrifugal impeller; afterwards the liquid drops are caught in the hole of the said device and removed from the centrifugal compressor by being led from the hole to the channel in the said device.

EFFECT: prevention of accumulation of liquid and formation of larger drops or liquid film on the centrifugal compressor impeller thus eliminating the risk of increased erosion impact and reduced compressor efficiency.

20 cl, 8 dwg