Underwater mobile platform-based fidelity sampler containing overlying water and sediments

A mobile platform and sampler technology, applied in sampling, sampling devices, instruments, etc., can solve the problems of sample gas phase component loss, organic component decomposition, oxidation state change, etc., to achieve zero-interference mixing and convenient switch operation , the effect of reducing stress

Active Publication Date: 2021-06-18
ZHEJIANG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Routine sampling often leads to the loss of sample gas phase components, microbial death, oxidation state change and organic component decomposition, which greatly limits the in-depth study of the flux calculation of methane seepage area and the evolution of geological environment system

Method used

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  • Underwater mobile platform-based fidelity sampler containing overlying water and sediments
  • Underwater mobile platform-based fidelity sampler containing overlying water and sediments
  • Underwater mobile platform-based fidelity sampler containing overlying water and sediments

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Embodiment Construction

[0029] In conjunction with the accompanying drawings, the present invention will be described in detail below through specific embodiments.

[0030] like figure 1 and figure 2 As shown, a fidelity sampling device containing overlying water sediments based on an underwater multifunctional mobile platform includes a sampler, a hydraulic device and an accumulator 8 .

[0031] The sampler includes a sampling outer cylinder 5, the sampling outer cylinder 5 is open at both ends, the top end is connected with the end sealing cover 3, and the bottom end is connected with a ball valve 6. A pressure sensor 2 is provided on the end sealing cover 3 . The pressure sensor 2 monitors the pressure inside the sampler during the process of the sampler taking the seabed sample and returning it to the water surface, and confirms that the pressure in the whole process hardly changes.

[0032] The hydraulic device is located on the end sealing cover 3, and the hydraulic device is a hydraulic cy...

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Abstract

The invention relates to the field of deep sea sampling, in particular to a fidelity sampler containing overlying water and sediments based on an underwater mobile platform. The sampler comprises a sampling outer cylinder, two ends of the sampling outer cylinder are opened, the top end is connected with an end sealing cover, and the bottom end is connected with a ball valve; a pressure sensor is arranged on the end sealing cover; a hydraulic device is arranged on the end sealing cover, a through hole is formed in the end sealing cover, an upper piston and a lower piston are arranged in the sampling outer cylinder and are flexibly connected through a steel wire rope, and the upper piston is connected with the hydraulic device; a through hole is formed in the lower piston, and a one-way valve is arranged in the through hole; the bottom of the lower piston is connected with a sampling inner cylinder; the bottom end of the sampling inner cylinder is connected with sampling petals; through holes are formed in the side walls of the upper part and the middle part of the sampling outer cylinder, and pressure retaining valves are mounted in the through holes; an energy accumulator is connected with the sampling cylinders through hydraulic pipes and pressure retaining valves in the through holes in the upper part of the sampling outer cylinder. The sediments and overlying water can be taken at the same time, the sampling efficiency is improved, and meanwhile the workload of a matched moving platform is reduced.

Description

technical field [0001] The invention relates to the field of deep-sea sampling, in particular to a fidelity sampler for sediment containing overlying water based on an underwater mobile platform. Background technique [0002] Deep-sea microorganisms have great research value, and the research on marine microorganisms has become more and more popular in recent years. The deep sea is an ecosystem with extreme environmental characteristics such as low temperature or high temperature, high pressure, high salinity, eutrophication, and darkness. Deep sea creatures have adapted to such an extremely special environment during the process of survival and evolution. For the cultivation and research of deep-sea microbial ground laboratories, a set of equipment that can realize fidelity sampling of deep-sea microbial samples is needed. It is also an urgent need for national energy and environment major strategies to develop seabed fidelity sampling system and testing technology, and to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1427
Inventor 陈家旺郭进邓义楠陈道华田祯玮田烈余耿雪樵周朋
Owner ZHEJIANG UNIV
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