METHOD OF DETERMINING RELIABILITY OF LINING OF HIGH-TEMPERATURE UNITS Russian patent published in 2020 - IPC G01N3/18 G01N25/72 G01N25/58 

FIELD: heat power engineering.

SUBSTANCE: invention relates to determination of reliability of lining of high-temperature aggregates (industrial furnaces and buckets, power boilers, etc.). Disclosed is method of determining reliability of lining of high-temperature units, involves measuring physical parameters of object, at which reliability of lining of high-temperature units is determined by the lining operation reliability criterion for the stretching zone, determined by formula:

where σ_exp^90 % is the permissible ultimate strength of the material for expansion, which is equal to 90 % of the expansion strength of this material; (σ_exp)_i are the occurring temperature stresses at time moment i; (X_exp)_i is length of expansion zone at time i, in which occurring temperature stresses (σ_exp)_i exceeds permissible ultimate strength of material for expansion σ_exp^90 %; τ is thermal operation time of high-temperature unit.

EFFECT: technical result of invention is obtaining data on reliability of lining of high-temperature units during their operation and use of said values for their operation.

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