GAS ANALYZER FOR MONITORING THE STATE OF ENVIRONMENTAL OBJECTS AND THE METHOD FOR ITS OPERATION Russian patent published in 2021 - IPC G01N27/27 

FIELD: gas analysis.

SUBSTANCE: invention relates to the field of gas analysis and can be used in portable electrochemical gas analyzers. The gas analyzer for monitoring the state of environmental objects includes a sensor unit for detecting gas containing a sealed measuring channel, a gas inlet for entering gas into the measuring channel, a gas outlet for removing gas from the measuring channel, a pumping unit in the measuring channel, while the gas analyzer is an insulated hermetically sealed cabinet controlled by a heater, inside which the measuring board is located; a sensor unit for gas detection; a power supply connected to the measuring board; air intake channels connected through dust filters to a solid particle sensor and through a CO₂ sensor and a system of branched air ducts to a humidifier inside which distilled water is poured; moreover, the humidifier is connected by an air channel to a sensor unit for gas detection, and electrochemical sensors are installed in a unit to one side of which thermoelectric Peltier modules are connected, the other side of the modules is cooled or heated through a heat pipe through a liquid cooling radiator connected to it; a humidity sensor is installed inside the air channel of the thermally insulated electrochemical sensor unit, and an air pressure sensor is located at the outlet of the air flow channel unit, behind which an air pump is installed on the air flow channel, the output channel of which is removed from the cabinet; and the sensor unit for gas detection is a thermally insulated electrochemical sensor unit containing sensors, and each of the sensors is connected via its amplifier board to the measuring board.

EFFECT: invention makes it possible to create a compact gas analyzer with a climate stabilization system that provides constant temperature and humidity of the measured medium, which ensures long-term stability of indicators and measurement accuracy.

4 cl, 2 dwg, 1 tbl