Evaluation test device for hydrate inhibitor

An experimental device for hydrate inhibitor evaluation with the property of resisting acidic gas corrosion, such as H2 and CO2, involves gas-liquid two-phase mixed reaction, including an automatic pressostat device (3), a pressure regulator (7),a thermostat bath (16),a liquid outlet (17), a reaction vessel (18), etc. The automatic pressostat device (3) is connected with a variable buffer tank (2), the variable buffer tank (2) is connected with the reaction vessel (18) through a pressure regulator (7), a flowmeter (8), a one-way valve (9) in sequence, the reaction vessel (18) is positioned on the thermostat bath (16), a buffer container (15) is connected with the reaction vessel (18) and a vacuum pump (15) is connected with the buffer container (14). Put liquid or water-soluble inhibitor into the reaction vessel of the evaluation device and vacuumize the vessel body before letting in the gas-sample to avoid the affection of the gas component in the air on the evaluation result.