Computer control system improvement of oil-gas-water multi-phase flow experimental facility

In nature world and engineering production and living, multi-phase flow plays a very important role. The research of multi-phase flow in the pipe condition is necessary and the experiment device of it is very helpful. For this reason, a PC-Based small-scale physical experimental system is build by Tianjin Key Laboratory of Process Measurement and Control. Its control system combines configuration software and Visual Basic software, the executive system is made up of several electric control valves, and the sensors consist of pressure sensors, temperature sensors, flow rate sensors, ultrasonic liquid level sensors, and so on. There are a variety of signals like digital signals, pulse signals, current analog signals, voltage analog signals, etc. And by this experimental device, the typical flow pattern can be formed, and the basic requirements of multi-phase flow research can be met. Some built-in problems and more new function have been added. These improvements of the system make it be more convenient according to the increasing demand of the multi-phase experiments.