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Structure and Working Principle of Infrared Gas Analyzer

Infrared gas analyzer is made using the principle that liquid chemical reagents of different formulations selectively directly absorb certain components of gas. Specifically, it is the nature of certain chemical reagents (absorbents) that chemically react with CO2, O2, and co in the exhaust gas, so that a certain amount of exhaust gas is contacted with the corresponding absorbent, and then the reduction in the volume of the exhaust gas is measured. To determine the volume content of various gas components.

Filter 2 is a U-shaped glass tube containing anhydrous calcium chloride or barium chloride and glass fiber, etc., to absorb moisture in the exhaust gas and filter soot particles.

The absorption containers 11, 12, and 14 are each composed of two glass bottles connected to each other. The one with many thin glass tubes is the absorption bottle, which can be filled with different chemical reagents for absorbing exhaust gas. The purpose of installing thin glass tubes is In order to increase the contact area between the absorbent and the exhaust gas and speed up the absorption process; the other is a buffer bottle, which is connected to Rubber Love 13. When the absorbent bottle is working, the absorbent can fluctuate up and down to play a buffering role.

The volume of the measuring cylinder 9 is 100 mL, with a scale of 0.1 or 0.2 mL on it, which can measure the volume of various gases to be analyzed. The glass cylinder 8 is covered on the outside. Cooling water is installed between the cylinder and the measuring cylinder to make the measurement simple The gas temperature is less affected by the outside world.

The pressure bottle 10 is filled with a sealing liquid that does not chemically react with the exhaust gas. The pressure bottle moves up and down to make the sealing liquid enter or exit the cylinder 9, thereby driving the exhaust gas into or out of the absorption bottle. The rubber ball 15 is used to extract exhaust gas and exhaust the gas in the system.

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