Measurement apparatus and method for hydrogen solubility and competitive dissolution of multi-component gases

A measurement apparatus for hydrogen solubility and competitive dissolution of multi-component gases, comprising:

• a gas dissolution mechanism, wherein
• the gas dissolution mechanism comprises a heat-insulated box, wherein two dissolution cylinders and a gas cylinder are provided in the heat-insulated box, each of the two dissolution cylinders is connected to the gas cylinder through a pipeline, a first piston plate is slidably connected inside each of the two dissolution cylinders, and a second piston plate is slidably connected inside the gas cylinder;
• and
• the gas cylinder is connected to an upper space above each of the first piston plates inside the two dissolution cylinders through each of the pipelines, respectively, the upper spaces above each of the first piston plates inside the two dissolution cylinders are connected to each other through an upper pipeline, a lower space below each of the first piston plates inside the two dissolution cylinders are connected to each other through a lower pipeline, the upper pipeline is configured to transport a gas, the lower pipeline is configured to transport liquid, a middle part of each first piston plate is connected to a gas transport pipe, and each gas transport pipe is configured to connect the upper space above a first piston plate and the lower space below said first piston plate.