Deep sea gas detection device based on gas partial pressure dynamic balance principle

Abstract

The invention discloses a deep sea gas detection device based on gas partial pressure dynamic balance principle. The deep sea gas detection device comprises an upper end cover arranged at the front section of the device, wherein the lower end of the upper end cover is provided with a macromolecule gas-permeable membrane; a sintering block is arranged behind the macromolecule gas-permeable membrane; the sintering block is arranged on a water-gas separation base; the upper end cover is connected with the water-gas separation base through screws; the water-gas separation base is arranged on a cavity end cover through the screws; the cavity end cover is arranged on a cavity through screws; an electronic control cabin and a laser detection cavity are arranged in the cavity; a clamp sleeve connecting element is arranged at the end part of the water-gas separation base; the clamp sleeve connecting element is connected with an inlet and outlet opening of the laser detection cavity through a hose; a sealed inside gas path is formed. The long-period detection on deep sea in-situ methane solution gas can be realized by a membrane structure based gas-liquid dynamic balance method; by laser detection, the detection lower limit is lower; meanwhile, the electronic circuit part is positioned in the high-intensity cavity; high pressure at the deep sea bottom can be born.

Description

technical field [0001] The invention relates to the technical field of deep-sea gas detection, in particular to a deep-sea gas detection device based on the principle of dynamic balance of gas partial pressure. Background technique [0002] In order to further understand the influence of dissolved methane in seawater on the ecological environment, deep-sea marine geological deposition rules and the survival mechanism of marine microorganisms, and to provide equipment for monitoring natural gas hydrates, there is an urgent need for in-situ methane gas detection equipment that can be used in deep sea. [0003] The current related products mainly include methane gas detection equipment based on membrane degassing and semiconductor sensitive devices, methane detection equipment based on infrared absorption detection principle and methane gas detection equipment based on optical sensing technology. [0004] Methane detection equipment based on membrane degassing and semiconductor...

AI Technical Summary

Problems solved by technology

Although the current methane gas detection equipment based on optical sensing technology can reach a lower methane gas detection line, due to the gas separation and storage technology adopted, the long-term detection of methane dissolved gas in situ in deep sea cannot be realized

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