FILM APPARATUS Russian patent published in 2009 - IPC C12M1/04 C12M1/06 B01D3/28 

FIELD: instrument making.

SUBSTANCE: invention relates to film apparatuses intended for cultivation of autophyte misroscopic organisms and can be used in microbiology, feed mill, pharmaceutical and cosmetic industries. Proposed film apparatus comprises the housing with fluid inlet and outlet unions, gas-heat carrier inlet and outlet unions. Aforesaid housing is divided by horizontal partitions into fluid inlet/outlet chambers, heat exchange and additional chambers. Cylindrical pipes incorporating fluid control valves and helical spiral pass through aforesaid chambers. Light source, for example, daylight filament lamp, is fitted on the additional chamber lower horizontal partition to illuminate fluid film representing autophyte microorganism suspension. The additional chamber inner side surface represents a mirror. Gas-heat carrier is fed and withdrawn via appropriate unions of additional chamber. Heat exchange chamber incorporates cooling water feed and discharge unions and outer thermal insulation. Cylindrical detachable pipes are furnished with a set of transparent and opaque drawn pipe elements, helical spiral representing semi-circular section groove being applied on inner surface of aforesaid elements. Transparent drawn pipe elements are installed in additional chamber while opaque drawn pipe elements are fitted in heat exchange chamber. Both types of aforesaid elements are jointed with the help of sealed couplings. Fluid discharge chamber accommodates a bubbler and bent branch pipes to feed the mix of carbon dioxide with air into cylindrical pipes. Vertical sections of the said bent branch pipes enter the cylindrical pipes for 20 to 30 mm, while their horizontal section is immersed into fluid. Note here that bent branch pipe outlet holes feature conical surface representing a funnel with 30°-angle to accelerate gas flow along the cylindrical pipe length. Note also that aforesaid outlet hole accommodates tapered plug with the like angle at its apex to form a circular tapered channel. The fluid outlet union accommodates a controlled valve.

EFFECT: higher yield of prepared biomasses due to increased efficiency of heat exchanger.

3 dwg