Continuous observation system for dissolving of methane in surface water body

Abstract

The invention discloses a continuous observation system for dissolving of methane in a surface water body, relating to greenhouse gas monitoring equipment. The continuous observation system is provided with a surface water pump, filtering equipment, temperature and salinity measurement equipment, a flow controller, a water-vapor balance device, a temperature probe, a gas pump, a cold trap, a waterproof electrode, a filtering device, an off-axis integral cavity output spectrum detector, a valve and a standard gas cylinder; a water inlet of the surface water pump is arranged underwater, a water outlet of the surface water pump is connected with an inlet of the filtering equipment, an outlet of the filtering equipment is connected with the temperature and salinity measurement equipment, an outlet of the temperature and salinity measurement equipment is connected with an inlet of the flow controller, an outlet of the flow controller is connected with the balance device which is communicated with the atmosphere, an air outlet formed in the upper part of the balance device is connected with a gas inlet of the gas pump, the temperature probe is arranged in the balance device, a gas outlet of the gas pump is connected with an inlet of the cold trap, an outlet of the cold trap is connected with the waterproof electrode, an outlet of the waterproof electrode is connected with an inlet of the filtering device, an outlet of the filtering device is connected with an inlet of the detector, and an outlet of the standard gas cylinder is connected with the balance device and the detector through the valve respectively.

Description

technical field [0001] The invention relates to a greenhouse gas monitoring device, in particular to a continuous observation system for dissolved methane in surface water. Background technique [0002] Methane is an important greenhouse gas second only to carbon dioxide in the atmosphere, and its greenhouse effect accounts for about 20%. In the context of global climate change, it has become the consensus of scientists from all over the world to quantitatively estimate the flux of greenhouse gases transported from the surface to the atmosphere. The ocean accounts for 71% of the earth's surface area. As a huge reservoir, the impact of the ocean on climate change is not only the exchange of heat and energy between the sea and the air, but also the exchange of greenhouse gases (carbon dioxide, methane, etc.) at the sea-air interface. played an important role. In addition, methane is an important energy source in the 21st century. The proven combustible ice reserves in the nor...

AI Technical Summary

Problems solved by technology

However, gas chromatography needs to consume part of the headspace in the balance system, which leads to the interruption of the water-gas balance in the balance system, and cannot achieve continuous measurement in the true sense.

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