A long-term continuous detection device for underwater gas and liquid

Abstract

The invention provides an underwater gas-liquid long-term continuous detection device. The underwater gas-liquid long-term continuous detection device comprises a pressure-resistant chamber, wherein asample introduction module, a balance device, an optical and circuit module, a sample discharging module and an exhaust module are arranged in the pressure-resistant chamber, wherein the sample introduction module is connected with one end of the balance device, and the other end of the balance device is connected with the optical and circuit module and the sample discharging module separately; the exhaust module comprises a compression cylinder, a piston push rod, a ventilation baffle, an exhaust film, an air guide channel and a scraping plate; the compression cylinder is provided with an air inlet, and the air inlet is connected with the sample discharging module; the piston push rod can be rotationally pushed into a cavity of the compression cylinder; the ventilation baffle and the exhaust film are arranged at one end of the compression cylinder, and the air guide channel is communicated between the front end and the rear end of the compression cylinder, the scraping plate can be rotationally arranged on the ventilation baffle plate so as to scrape liquid on the ventilation baffle; and the waste gas generated by the underwater gas detection is discharged, so that the waste gasis prevented from accumulating in the detection device, the service continuity of the detection device is improved, and the long-term stable detection of the underwater gas-liquid can be realized.

Description

technical field [0001] The invention relates to the technical field of gas-liquid detection, in particular to an underwater gas-liquid long-term continuous detection device. Background technique [0002] At present, there is no underwater gas-liquid detection instrument in the known underwater water body experimental device; when used as a gas device, although the laboratory uses the principle of ring-down spectroscopy, it can analyze methane and carbon dioxide, etc., and has relatively High precision, but insufficient in real-time, long-term, efficiency, etc., can not be used in the deep sea environment, and can not conduct in-situ continuous long-term analysis of water bodies in the target area, long-term operation will lead to serious drift of measurement results, for To solve this problem, it is necessary to continuously calibrate the system; since the equipment has been working on the seabed for a long time, the in-situ calibration device must be able to automatically c...

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Problems solved by technology

[0004] In view of this, the present invention proposes an underwater gas-liquid long-term continuous detection device, which aims to solve the problem of high waste gas discharge cost, low efficiency, and easy blockage of ventilating baffle pores due to waste gas liquefaction.

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