高炉冷却壁热应力试验分析

Experiment Analysis of Thermal Stress in the Cooling Wall of Blast Furnace

摘要: 采用脆性涂层法和电阻应变法实际测量了高温状态下高炉冷却壁的应力和应变.实测结果表明:由于冷却水管的非均匀布置,冷却壁中心位置应力较高,而四周应力较低,高炉冷却壁的应力分布,与有限元的应力分布计算结果的趋势和数量级相同.这种测量方法的应用为应力应变的理论计算提供了一种新的校验方法.

Abstract: The measurement result of actual strain and stress of the cooling wall in the blast furnace at high temperature state was obtained by the method of brittle coating and strain gauge line.Its showed that the stress is higher in central position than in the peripheral position because of the nonuniform distribute of water pipe.The tendency and order of calculation result is the same as the measurement.Its application leads to a new measurement method for calibrating the theory calculation result of the stress and strain.