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Multi-point seabed surface sediment sampler

A surface sediment and sampler technology, applied in sampling, sampling devices, instruments, etc., can solve the problems of high cost, long time period, single sediment sample, etc.

Pending Publication Date: 2020-12-22
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, most seabed surface sediment sampling devices are operated on submersibles, which can only complete a single sampling each time. The sediment samples obtained are very single, and the reliability of the sampling device is very high. For sediment samples at certain points, the submersible needs to dive many times, which is costly and takes a long time

Method used

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  • Multi-point seabed surface sediment sampler
  • Multi-point seabed surface sediment sampler
  • Multi-point seabed surface sediment sampler

Examples

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as Figure 1-2 As shown, the present invention includes a sampling pipe assembly 1, a pressure retaining cylinder assembly 2, a pressure compensator 3, a transfer valve 4, a needle valve 5, a fixed frame 6, a scraper ring 7 and a sampling pipe clamping device 8. The sampling tube assembly 1 and the pressure holding cylinder assembly 2 are fixed in the fixing frame 6, and the sampling tube assembly 1 is arranged in a regular pentagon. The bottom of the pressure-holding cylinder assembly 2 has a hole and communicates with the pressure compensator 3 through the high-pressure connecting pipe 302. The pressure compensator 3 has a hole at the top and communicates with the needle valve 5 through the valve connecting pipe 301. Both ends are connected with the corresponding parts by compression nuts 303. The bottom of the pressure holding cylinder assembly 2 is ope...

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Abstract

The invention discloses a multi-point seabed surface sediment sampler. The sampler is characterized by comprising a sampling pipe assembly, a pressure maintaining device assembly, a sample extruding and transferring device and a fixing frame; the pressure maintaining device assembly is fixedly installed on the fixing frame. the pressure maintaining device assembly comprises a pressure maintainingcylinder and a pressure compensation device, wherein the pressure compensation device is communicated with the bottom of the pressure maintaining cylinder; a sampling pipe of the sampling pipe assembly can be inserted into the pressure maintaining cylinder, and the tail part of the sampling pipe is connected with an opening in the top of the pressure maintaining cylinder in a sealing manner; and the pressure maintaining cylinder is connected with the sample extruding and transferring device. Multiple times of pressure-maintaining sampling of sediments at different point positions of the seabedcan be achieved through one-time operation, operation is convenient, the structure is simple and compact, machining and manufacturing are easy, reliability is high, and the economical efficiency of seabed operation is remarkably improved; the operation efficiency and the sampling richness of seabed sediment sampling are effectively improved, and meanwhile, the sampling failure cost is reduced.

Description

technical field [0001] The invention relates to a seabed surface sediment sampling device, in particular to a multi-point seabed surface sediment sampler. Background technique [0002] Seafloor surface sediments are the area where the liquid-solid two-phase interface occurs. Physical, chemical and biological changes are constantly occurring on the liquid-solid interface. There are extremely rich mineral resources, including petroleum, combustible ice, and polymetallic nodules. , diamond-rich crusts, hydrothermal sulfides, marine organisms, gas hydrates, and clay minerals. These resources are of great significance for understanding the formation and evolution of the ocean. At present, most seabed surface sediment sampling devices are operated on submersibles, which can only complete a single sampling each time. The sediment samples obtained are very single, and the reliability of the sampling device is very high. For sediment samples at point locations, the submersible needs...

Claims

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Application Information

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IPC IPC(8): G01N1/04G01N1/10
CPCG01N1/04G01N1/10G01N2001/1031
Inventor 唐文波彭佑多金永平刘广平刘亮江山强
Owner HUNAN UNIV OF SCI & TECH
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