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Installation requirements for the airway system
2025/8/29
In modern laboratories, to complete experiments, various analytical instruments are required, such as gas chromatographs, atomic absorption spectrometers, gas chromatography-mass spectrometry (GC-MS), ICP, etc. Among these instruments, high-purity gases are needed. The traditional approach is to adopt a decentralized gas supply mode with independent gas cylinders. In this gas supply mode, each instrument is equipped with a separate gas cylinder. Meet the usage requirements of each instrument and equipment respectively.
However, with the continuous increase in laboratory investment and the rapid growth of instruments and equipment in recent years, the gas consumption has also been increasing year by year. The traditional gas supply mode has become unable to meet the demands of the increasing number of instruments and equipment. At the same time, the decentralized gas supply mode has led to the disorder of laboratory layout and the frequent replacement of gas cylinders, which has also caused difficulties in laboratory management and maintenance. To solve the above two problems, A system with high safety and the ability to centrally distribute and supply gas is needed to complete the gas supply from the gas source to the instruments. This is the function of the high-purity gas pipeline system in the laboratory. The centralized gas supply system in the laboratory involves the design of gas pipelines, material selection, engineering installation and acceptance, etc. It is a highly specialized task. As laboratories are usually equipped with many precision large-scale instruments and equipment, if the engineering materials are substandard or the construction process is not precise, leakage may occur during use, introducing impurities and reducing the purity of high-purity gases. This directly leads to the inability of the instruments and equipment to be used normally, so the design and construction must be carried out by a professional company specializing in gas pipeline installation.
Design and installation requirements for gas pipelines in the central laboratory of the petrochemical industry
The design of the gas cylinder room should be located on the main entrance side of the central laboratory, and shading and sun protection measures should be taken. When the gas cylinder room is integrated with the building, the partition wall should be a reinforced concrete explosion-proof wall. It should have good ventilation and sufficient explosion venting area. The indoor floor should have measures to prevent sparks and static electricity. Flammable gas cylinders (H2, C2H2) and oxidizing gas cylinders (O2) should be arranged separately. A leakage alarm system should also be established. All pipelines in the central laboratory of the color spectrum room should be planned and arranged in a centralized manner to facilitate installation, operation and maintenance as the layout principle. All main pipes of process pipelines introduced into the central laboratory should be equipped with shut-off valves, and pressure gauges, thermometers, flow meters, filters and pressure reducing valves, etc. should be installed as needed. Valves or instruments should be placed in positions that are convenient for observation and maintenance. Flammable and explosive gases such as hydrogen, acetylene and oxygen should be laid in exposed lines. Pipelines should be centrally arranged and exposed along the wall, and be convenient for installation and maintenance. Equipment platforms using gas cylinder pipelines should be placed away from the wall, and the reserved maintenance space should not be less than 600mm. Hydrogen pipelines are preferably connected by welding and should not be connected by threaded connections or gate valves.
