Optimization Design of Ultra-High Pressure Retaining Tube of Air-Tight Sampling Device for Deep-Sea Sediments

2018 ◽  
Author(s):  
Shu-dong He
Keyword(s):  
High Pressure ◽  
Deep Sea ◽  
Optimization Design ◽  
Sampling Device ◽  
Ultra High Pressure ◽  
Deep Sea Sediments

A pressure-retaining sampling device for deep-sea sediments

2019 ◽  
Author(s):  
Yue Huang ◽  
Jiawang Chen ◽  
Hao Wang ◽  
Weitao He ◽  
Jing Xiao ◽  
...  
Keyword(s):  
Deep Sea ◽  
Sampling Device ◽  
Deep Sea Sediments

scholarly journals Design and Experimental Study of a Novel Full-ocean-depth Pressure-retaining Sediment Sampler

2021 ◽  
Author(s):  
Shudong He ◽  
Youduo Peng ◽  
Yongping Jin ◽  
Jian Yan ◽  
Buyan Wan
Keyword(s):  
Deep Sea ◽  
Structural Evolution ◽  
Technical Equipment ◽  
The Novel ◽  
Sampling Device ◽  
Core Diameter ◽  
Seabed Sediment ◽  
Deep Sea Sediments ◽  
Resource Exploration ◽  
Seabed Sediments

AbstractDeep-sea sediments hold evolutionary records of the oceanic environment, records of great significance for scientific fields investigating marine sedimentary processes, structural evolution, and seabed mineral resource exploration. However, the acquisition of original samples from deep-sea sediments is completely dependent on advanced seabed sediment collection methods and technical equipment. In this paper, a novel sampler is proposed to obtain intact sediment samples at full-ocean-depth. It mainly consists of a sampling device, pressure-retaining device, pressure-compensating device and sample transfer device. The sampler can collect samples at full-ocean-depth (11,000 m) with a maximum core diameter of 54 mm and core length of 350 mm, and samples can be maintained at near in situ pressures during recovery. The sampler can be installed on a remote operated vehicle (ROV) or human occupied vehicle (HOV), and operated with a single mechanical arm to collect pressure-retained samples. The experimental test showed that the novel sampler had good pressure-retaining performance and suitability with a mechanical arm, and can be applied to pressure-retaining sampling of seabed sediments at depth of 11,000 m.

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