Study on Automatic Isokinetic Sampling of Gas-Solid Two Phase Fluid

摘要

The intellectual automatic isokinetic sampling system equipped with micro-computer can improve the accuracy of gas-solid two phase fluid sampling. The experiment result shows that at the fluid velocity range from 1.8m/s to 10m/s, the relative sampling velocity error is less than +- 3.5percent, that at the fluid velocity range from 5m/s to 9m/s and the fluid concentration range from 0.2kg/m~3 to 0.28kg/m~3, the relative sampling concentration error is less than +- 4.42percent. The system, applying column-shaped thermal component as its sensors for velocity, has high sensitivity and good response frequency. It can be used especially for two phase fluid at low velocity, and the result can be for engineering reference.