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一、概述在大容量计量中,对立式非保温金属油罐进行计量的最后结果应是标准温度20℃时的值。因此,在实际计量中应将油罐在某一温度t℃下的值换算到20℃时的值。但油罐的罐壁温度由于设备本身等限制,很难直接测得。罐壁温度主要是由罐内油品温度和罐外大气温度所决定,故通常是通过这两个温度推算得到罐壁温度。到目前为止,国内外尚未能得出罐壁温度
First, an overview In the large-capacity measurement, the vertical non-insulated metal tank for the measurement of the final result should be the standard temperature 20 ℃ value. Therefore, the actual measurement should be tank at a temperature t ℃ value is converted to the value of 20 ℃. However, the tank wall temperature tank due to the limitations of the device itself, it is difficult to directly measure. Tank wall temperature is mainly determined by the oil temperature inside the tank and outside the tank temperature is determined, it is usually calculated by these two temperature tank wall temperature. So far, the temperature at the wall of the tank has not been reached at home and abroad