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Instrument introduction
The oxygen nitrogen hydrogen analyzer is a new generation of elemental analysis instruments, with a desktop integrated design,beautiful and elegant appearance, and easy operation.
The oxygen nitrogen hydrogen analyzer is an intelligent analytical instrument composed of a pulsed furnace and a computer, with pyroelectric sensors and high-precision thermal conductivity detectors as its core. The instrument is mainly used for the analysis of oxygen, nitrogen and hydrogen content in ferrous metals, non-ferrous metals, rare earth metals, inorganic substances, ores, ceramics and other substances in industries such as metallurgical machinery, commodity inspection, scientific research and chemical engineering.
Instrument principle
Oxygen, ammonia and hydrogen in metallic and non-metallic solid materials are detected by the principle of inert gas melting. In the determination of oxygen, nitrogen and hydrogen, the weighed sample is placed in a graphite crucible and melted by high-temperature heating in a helium gas flow (argon gas can be used for single oxygen measurement). The oxygen in the sample reacts with the carbon in the graphite crucible to form carbon monoxide (CO), and the nitrogen in the sample escapes in the form of nitrogen gas. These mixed gases are sent to the conversion furnace by helium gas, where carbon monoxide (CO) is converted into carbon dioxide (CO2), while nitrogen gas does not react. The mixed gas after passing through the conversion furnace is sent to the infrared detection cell, where carbon dioxide (CO2)(H2O) is detected. Then, the carbon dioxide (CO2) and water in the mixed gas after infrared detection are adsorbed, and the remaining mixed gas of nitrogen and helium is detected through the thermal conductivity detection cell. Rapid and accurate determination of oxygen, nitrogen and hydrogen content in steel, cast iron, alloys, copper, zirconium, titanium, rare earth materials and other inorganic substances.
