gas circuit system is mainly composed of gas source switching system, pipeline system, pressure regulating system, gas point, monitoring and alarm system. For some flammable and explosive gases, there may be slight differences in the design and construction processes, and safety control devices such as gas flashback preventers and safety grounding must be added.

        In modern laboratories, in order to complete experiments, a variety of analytical instruments are needed, such as gas chromatographs, atomic absorption, atomic fluorescence, gas — mass spectrometers, ICPs, etc. These instruments require the use of high-purity gases. The traditional method is to use separate cylinders for dispersed gas supply. In this gas supply mode, each instrument and equipment is equipped with a separate gas cylinder to suit the use of each instrument and equipment. However, with the investment in laboratories in recent years, With the continuous increase of resources, the rapid increase of instruments and equipment, the gas consumption is also increasing year by year. The traditional gas supply model is no longer able to meet the increasing needs of instruments and equipment. At the same time, the decentralized gas supply model brings chaos to the laboratory layout. Frequent replacement of cylinders also causes difficulties in the management and maintenance of the laboratory. In order to solve the above two aspects of the problem, a system with high safety and centralized distribution of gas supply is needed to complete the gas supply from the gas source to the instruments. This is the function of the laboratory high-purity gas pipeline system.
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