Seabed surface sediment fidelity sampler

A technology of surface sediments and samplers, applied in the direction of sampling devices, etc., can solve the problem that sampling devices cannot take samples, and achieve the effect of pressure retention and fidelity

Pending Publication Date: 2021-03-09
GUANGDONG LAB OF SOUTHERN OCEAN SCI & ENG GUANGZHOU +1
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  • Description
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Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a seabed surface sediment fidelity sampler, which can solve the problem that conventional sampling devices cannot perform reliable sampling

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  • Seabed surface sediment fidelity sampler
  • Seabed surface sediment fidelity sampler
  • Seabed surface sediment fidelity sampler

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "secon...

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Abstract

The invention discloses a seabed surface sediment fidelity sampler which comprises an in-situ sampling packaging module and a pressure maintaining module, the in-situ sampling packaging module comprises a penetration assembly, a sampling assembly and a pressure sensor, the sampling assembly comprises an air bag and a sampling barrel, the upper end of the sampling barrel is connected with a sealingend cover, and a water storage cavity is formed in the lower end of the sealing end cover; the lower end of the water storage cavity is connected with a flow stopping channel, the lower end of the flow stopping channel is connected with a water inlet channel, the inner wall of the flow stopping channel is obliquely arranged, a one-way ball is arranged in the flow stopping channel, the diameter ofthe one-way ball is larger than the inner diameter of the water inlet channel, the lower end of the water inlet channel is connected with the storage cavity, a coarse filter screen is arranged between the water inlet channel and the storage cavity, the lower end of the storage cavity is connected with a high-pressure valve set, and the lower end of the high-pressure valve set is connected with the injection assembly. According to the invention, the penetration assembly drives the sampling assembly to penetrate into the surface layer of the seabed, so that sediments and overlying water enter the sampling cylinder, are layered by the coarse filter screen, and are respectively stored in the storage cavity and the water removal cavity.

Description

technical field [0001] The invention relates to a fidelity sampler, in particular to a fidelity sampler for seabed surface sediment. Background technique [0002] The seabed water-sediment interface is an important place for marine scientific research. Different water depths, redox environments, and the degree of participation of organic matter and microorganisms have different effects on the biogeochemical reactions at the sediment interface. However, due to the complexity of the seabed environment, it is difficult to obtain reliable samples, but reliable samples are a prerequisite for analysis and research. How to obtain reliable samples has become the bottleneck of contemporary marine scientific research; conventional sampling devices often cause samples to appear gas-phase groups The loss of components, the death of microorganisms, the change of oxidation state and the decomposition of organic components greatly limit the in-depth study of flux calculation and evolution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
CPCG01N1/10
Inventor 陈道华陈家旺邓义楠何清音田祯玮曹珺肖波盛堰田烈余李柯良耿雪樵
Owner GUANGDONG LAB OF SOUTHERN OCEAN SCI & ENG GUANGZHOU
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