METHOD AND SYSTEM FOR REGULATING AIR FLOW THROUGH ANNEALING FURNACE DURING PRODUCTION OF OPTICAL FIBER Russian patent published in 2021 - IPC C03B37/27 C03B37/29 G02B6/28 

FIELD: optical fiber production.

SUBSTANCE: method and system for regulating the air flow through the annealing furnace during the production of optical fiber is claimed. The system and method for optical fiber production includes an annealing furnace having an inlet of the furnace, an outlet of the furnace and a process tube passing between the inlet of the furnace and the outlet of the furnace. The process tube contains a wall of the process tube and the heating zone, which includes at least one heating element. The system for optical fiber production also includes a gas distribution unit connected via fluid medium to the outlet of the furnace and structurally made with the possibility of introducing gas flow from the gas distribution unit into the process tube. Gas flows inside the process tube in an upward direction.

EFFECT: increased quality of optical fiber production.

20 cl, 5 dwg