GLASS-MELTING FURNACE EQUIPPED WITH OPTICAL FIBRES Russian patent published in 2022 - IPC C03B5/16 G01K11/32 G01K3/08 

FIELD: furnaces.

SUBSTANCE: claimed group of inventions relates to the field of melting raw materials, in particular, to furnaces for melting glass. The glass-melting furnace comprises a fire-retardant part defining a hot surface in contact with or intended for contact with molten glass or a gas medium in contact with molten glass, and a cold surface at a distance from said hot surface. The temperature measuring apparatus comprises a waveguide containing a measuring part containing at least one temperature measuring sensor configured to send a response signal in response to a poll signal being supplied to the waveguide. The polling apparatus is connected with the input of the waveguide and configured to send a polling signal to said input in order to receive said response signal returned by the sensor in response to said polling signal being supplied, in order to analyse the received response signal and transmit a message according to said analysis. In the above furnace, the measuring part passes between said cold surface and the heat insulation layer or through said heat insulation layer. The furnace comprises a sheet consisting of a group of measuring parts of multiple said waveguides and passing along a surface parallel to the hot surface and/or the cold surface. The density of sensors in said sheet is more than three sensors per m² of the hot surface of the fire-retardant part.

EFFECT: increase in the reliability of the glass-melting furnace due to the provided possibility of obtaining, in the event of a rupture in the optical fibre, information related to the sensors on both sides of the rupture area.

14 cl, 12 dwg