Balanced flow meter measures hot air media exceeding 350°C

Project Overview

Balance flow meter is a commonly used flow measurement instrument, suitable for measuring the flow of gas, steam and liquid. However, when the medium temperature is higher than 350°C, the measurement accuracy of the balanced flow meter will be affected to a certain extent. Therefore, for hot air media exceeding 350°C, some special measures need to be taken to ensure measurement accuracy.

Generally speaking, a balanced flow meter consists of a throttling device and a differential pressure transmitter. When the medium temperature is high, special design of the throttling device is required to avoid the impact of high temperature on the measurement results. For example, the throttling device can be made of high-temperature resistant materials, or a cooling device can be installed outside the throttling device.

Secondly, the accuracy and stability of the temperature compensator need to be considered. Due to the high medium temperature, the measurement results of the temperature compensator are easily affected, so it is necessary to select a temperature compensator with high accuracy and good stability. At the same time, the temperature compensator needs to be calibrated and maintained regularly to ensure the accuracy of its measurement results.

Finally, the algorithm of the traffic calculator needs to be optimized. At high temperatures, the density of the gas changes, so a more accurate algorithm is needed to calculate the flow rate. For example, the algorithm of a closed pipe flow meter can be used, or an algorithm based on actual working conditions can be used for calculation. To sum up, for hot air media exceeding 350°C, the balance flow meter needs to be specially designed and optimized to ensure measurement accuracy and stability. At the same time, attention needs to be paid to regular maintenance and calibration of the temperature compensator and flow calculator to ensure the accuracy of their measurement results.