Continuous bubble removal method and continuous bubble removal apparatus

摘要

A bubble removal speed is improved while suppressing an increase in the size of an apparatus for removing bubbles. An open-air removal method includes a main container 3, a pressurized container 17 that is connected to the main container and contains a working liquid 18, and a movable part C that is movably attached to the pressurized container. The procedure of preparing, the procedure of circulating the liquid to be degassed containing bubbles to the main container, and the reciprocating displacement while supporting the movable part by the support part 171a of the pressurized container, through the working liquid, In the pressurized container, the liquid to be defoamed is repeatedly pressurized and depressurized from the region surrounded by the connection part 172a on the main container side with respect to the support part, thereby repeatedly reducing and increasing the volume of bubbles. And a procedure. The opening area of the support part is larger than the opening area of the connection part.