Design of Pressure Retention and Transfer System for Abyssal Sediments

Sediment pressure transfer device, which is used to transfer the samples from the pressurized sampler to an experimental culture vessel for in situ culture of submarine microbes. The device matches the lead screw piston sampler developed by Zhejiang University. The hydraulic pump uses sediment culture fluid as a transport medium to increase the pressure to the required pressure for the system and scour the sediment from the sampling barrel into the water storage unit. The magnetic agitator in the water storage tank mixed the sediment and culture liquid evenly, and the micro-flow pump at the outlet of the water storage tank efficiently transported the sediment culture medium mixture to the culture kettle. This paper mainly introduces the system design, work flow and pressure load denaturation analysis of important parts, and introduces the working environment and experimental scheme of the device.