DEVICE FOR REPRODUCING AND TRANSMITTING MASS CONCENTRATION UNITS OF GASES IN LIQUID AND GAS MEDIA Russian patent published in 2017 - IPC G01N27/00 

FIELD: measuring equipment.

SUBSTANCE: device is based on sequentially preparing and diluting distilled water in sample solutions and verifying dry and wet gas mixtures with nitrogen PGS in the gas phase of the working chamber; determining the mass concentration of gases dissolved therein by a calibrated or verified analyzer. The device contains a working chamber with a gas receiver phase, a standard absolute pressure meter, a control unit with compressors and electro-pneumatic valves connected to the external terminals of the control unit, and a front panel with control bodies and an air-water pump capacity control. The working chamber consists of a sample preparation unit and a flow cell, filled with water at the ratio to the gas phase volume of not more than 1/3. In addition, an autonomous bubbler for pumping a gas mixture through a closed loop of the gas and liquid phase of the sample preparation unit, an air-water pump in the receiver for the continuous pumping of the analyzed liquid or gas through the sample preparation unit and the flow cell, liquid or gas additive dispensers, a thermometer, a sensing element, a heater, an automatic temperature stabilization unit electrically connected to the sensor and the front panel of the control unit are introduced. The sample preparation unit is pneumatically connected to the dispensers and the flow cell in which an electrochemical or optical sensor is arranged, the pump in the receiver, a vessel with an oxygen absorber, a balloon with nitrogen, a balloon with a verifying gas mixture, compressors and valves connected to the external terminals of the control unit.

EFFECT: increasing the graduation, verification and calibration accuracy of analyzers of gas composition in liquid and gas media.

2 cl, 1 dwg, 3 tbl