Apparatus for acquisition of marine sediment porewater and on-line in-situ detection of gas in porewater, and control method thereof

A technology for in-situ detection of marine sediments, applied in measuring devices, sampling devices, and analyzing gas mixtures, etc., can solve problems such as the durability and efficiency of the equipment's working capacity, failure to work normally, and failure to collect pore water in a circular manner , to achieve the effect of increasing the amount of pore water collection, improving effectiveness and rapid detection

Active Publication Date: 2016-08-10
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Problems solved by technology

For the in-situ collection of marine sediment pore water, most of them rely on the difference in hydrostatic pressure inside and outside the collection device to make the pore water of different sediment layers enter the sampler to complete the collection. The pore water cannot be collected circularly. Once it is blocked, it cannot work normally.
Although the device can realize the in-situ collection of pore water, the durability and efficiency of the working capacity of the equipment need to be improved

Method used

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  • Apparatus for acquisition of marine sediment porewater and on-line in-situ detection of gas in porewater, and control method thereof

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Embodiment Construction

[0021] In the accompanying drawings, a marine sediment pore water collection and gas online in-situ detection device is composed of a counterweight 1, a casing 2, a gas cylinder 17 and a single-layer sampling point device 13, wherein the counterweight 1 and the casing The body 2 is connected, and the counterweight 1 is provided with a power supply and a signal channel device 18; the gas cylinder 17 and the single-layer sampling point device 13 are installed inside the housing 2, and the gas cylinder 17 and the single-layer sampling point device 13 are connected.

[0022] Single-layer sampling point device 13 is made up of gas-liquid cabin 5, solid-liquid cabin 8, secondary filtration device 10, water sample preservation cabin 11 and electric push rod pressure regulating device 12, described gas-liquid cabin 5, solid-liquid cabin 8, The secondary filtering device 10, the water sample storage chamber 11 and the electric push rod pressure regulating device 12 are connected through...

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Abstract

The invention provides an apparatus for acquisition of marine sediment porewater and on-line in-situ detection of gas in the porewater. The apparatus can realize in-situ, rapid and cyclic acquisition of the porewater and on-line in-situ detection of the composition and content of gas in the porewater. According to a technical scheme in the invention, the apparatus is characterized by comprising a counterweight (1), a shell (2), a gas cylinder (17) and a single-layer sampling point device (13), wherein the counterweight (1) is connected with the shell (2), the counterweight (1) is provided with a power supply and a signal path device (18), and the gas cylinder (17) and the single-layer sampling point device (13) are arranged in the shell (2) and connected with each other. The invention also discloses a control method for the apparatus.

Description

technical field [0001] The invention relates to the field of marine sediment pore water collection and detection, in particular to a marine sediment pore water collection and gas detection system that can collect pore water in situ, quickly and circularly, and can detect the gas composition and content in situ in the sediment pore water. An online in-situ detection device and a control method thereof. Background technique [0002] There are two ways to collect marine sediment pore water. One is to collect the sediment first, and then extract the pore water in the laboratory by means of pressing, centrifugation and vacuum filtration extraction. This method will cause the dissolved gas in the pore water to escape, The decomposition of organic components and the oxidation of variable valence ions make it difficult to reflect the original composition and information of pore water; the other is in-situ pore water extraction. At present, the devices that can be extracted in situ ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10G01N1/34G01N33/00
CPCG01N1/10G01N1/34G01N33/0004G01N2001/1031
Inventor 蒋慧略华志励刘波姚璞玉罗非张照文袁建辛克梁王雷王虎王桂云郭风祥贾欣鑫王起维
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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