The Simulation Study on Deep-sea Microbes Sampling of Holding the In-Situ Pressure Based on the Pressure Compensation with 316L Stainless Steel Accumulator

摘要

This paper proposes a physical model of pressure compensation with accumulator based on the simulation research. The best accumulator can be chosen quickly and reasonably for different sampling systems. The mathematical model about the final pressure of the accumulator is established. The accumulator models with different nominal volumes are analyzed in variety pre-charged pressures. The simulation results of the system show that: When the nominal capacity of accumulator is 1.6L and the pre-charged pressure is 25MPa, the system can meet the design requirements of 310mL sampling vessel, and the structure of the sampling system can reach the optimal state.