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目前许多厂矿对高温盐炉采用高温热电偶进行直接测温,并有许多成功的经验,但在现场使用中,热电偶测温成本较高,损坏严重。我厂在热处理时,对高温盐炉采用全辐射高温计(简称辐射筒)进行间接测温,并对此方法作了进一步改革,其效果良好。下图为改革前后的对比。改革前,使用辐射高温计测温(见图中 a),有以下缺点:1.温度波动大;
At present, many factories and mines use high-temperature thermocouples for direct measurement of temperature in high-temperature salt furnaces and have many successful experiences. However, in field use, thermocouples have higher temperature measurement costs and cause serious damage. I plant in the heat treatment, the use of high-temperature salt furnace full radiation pyrometer (referred to as the radiation tube) for indirect temperature measurement, and this method has been further reform, the effect is good. The picture below shows the comparison before and after the reform. Before the reform, the use of radiation pyrometer temperature (see Figure a), has the following disadvantages: 1. Temperature fluctuations;