Glass channel welded thermocouple temperature compensation method, system, equipment and medium

Abstract

This invention provides a method, system, equipment, and medium for temperature compensation of welded thermocouples in glass channels. The method involves collecting temperature data of welded thermocouples in a DCS system, performing a polynomial fitting based on the least squares method on the collected welding time-temperature data to obtain a welding thermocouple temperature fitting model, eliminating abnormal temperature data, and determining the initial temperature value of the thermocouples to obtain a welding thermocouple temperature prediction model. Temperature compensation parameters are determined by comparing the predicted temperature value from the welding temperature prediction model with the initial temperature. These temperature compensation parameters are then fed back to the DCS system to achieve temperature compensation for the thermocouples until the temperature compensation for the welding process is complete. This invention solves the problem of reduced temperature measurement accuracy caused by the attenuation of welded thermocouples in platinum channels of substrate glass under long-term high-temperature environments, achieving accurate temperature measurement of welded thermocouples in channels. This provides a basis for on-site personnel to judge the viscosity and temperature state of the molten glass in the channel and for process operation, ensuring the stability of the production line.

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