Study on Spiral Tube Compound Gas-liquid Separator with Fuzzy PID Control

摘要

A new kind of spiral tube compound gas-liquid separator is designed basing on the analysis of gravity and centrifugal force effect on fluid in spiral tube. The numerical simulating validates the design of the structure of the spiral tube separator is good. With the comparison of three control plans, the plan to keep liquid level stably through controlling gas exit out flux is chose. The manual and the automatic experiments prove it is feasible. Fuzzy-PID controller is designed according to Ziegler-Nichols step response method and manual experiences. Experiments show that the fuzzy-PID controller has excellent anti-jamming performance. Experiments on oil-gas-water separation prove that the separator is three times as efficient as the same size gravity separator in practical separation.