How to carry out the gas path design of laboratory engineering? -common problem
How to carry out the gas path design of laboratory engineering?
The commonly used gases in the laboratory include high-purity gas used in precision analytical instruments, experimental gas used in chemical reaction experiments and compressed air used in auxiliary experiments, atomic absorption, gas chromatography, liquid chromatography, mass spectrometry, ICP, etc. High-purity gas used in precision instruments...
Text label: pharma machinery engineering, gas circuit design, engineering installation, Zhongjing Global Purification
How to carry out the gas path design of laboratory engineering?
The commonly used gases in the laboratory include high-purity gas used in precision analytical instruments, experimental gas used in chemical reaction experiments and compressed air used in auxiliary experiments, atomic absorption, gas chromatography, liquid chromatography, mass spectrometry, ICP, etc. The high-purity gases used in precision instruments mainly include inert gases, non-combustible gases, combustion-supporting gases, etc. In order to ensure safety, all kinds of gases used in experiments should be kept away from the working place if possible, and a special room should be designed as a gas cylinder room. Lead all kinds of required gases to each room, according to the needs of the room can be installed with on-off valve, regulating valve, pressure gauge, gas flow meter control box, safe, convenient, beautiful, save space; no conditions to build a gas cylinder room Gas cylinders or gas generators should be placed in each instrument analysis room, close to the gas point of the instrument, which is convenient to use, saves gas, and requires less investment. It is necessary to set up a gas cylinder safety cabinet with automatic alarm function and exhaust function for storage. ; Use gas cylinder cabinets to store cylinders, pay attention to prevent sunlight.
The gas used in the laboratory is mainly provided by gas cylinders. According to the type of gas, different colors are used. The oxygen cylinder is sky blue, the hydrogen cylinder is dark green, the air cylinder is black, the acetylene cylinder is white, and the argon cylinder is white. It is gray, and the nitrogen cylinder is black; the gas cylinder should be specially used for the cylinder, and other types of gases cannot be modified at will; When the acetylene cylinders are used at the same time, they cannot be put together; the cylinders must be placed upright during use and storage. When the working place is not fixed and the movement is frequent, they should be fixed on a special trolley to prevent tipping and use in a lying position is strictly prohibited; when opening high-pressure steel cylinders The operator should check whether the screw of the pressure reducing valve is loose before opening it on the side of the outlet of the gas cylinder; the accessories such as the gas valve, pressure reducing valve, and connecting screw are completely complete, and there is no dangerous situation such as air leakage and loose watch hands. The structure of the meter is different from that of the hydrogen meter, and the screw thread is opposite, so it is not allowed to use it; the gas in the gas cylinder cannot be used up, and the residual pressure of 0.2-1MPa is generally maintained to avoid danger during inflation and reuse; there should be ventilation equipment between the gas cylinders , keep it cool, and there should be a drain hole on the top of the cylinder to prevent the accumulation of hydrogen. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for laboratories and clean laboratories.
The positive pressure biosafety pharma machinery should be equipped with emergency support gas tanks at the same time; each room should be designed with a ventilation hole with a filter device. If it is a room with an indoor corridor, shutters can also be installed on the doors and windows. Calculate the proportional relationship of the exhaust volume; design a corresponding number of ventilation fans with a reverse air valve according to the size of the room to make the air flow smoothly and keep it clean. Reference standards for pharma machinery gas circuit design: 'Code for Design of Compressed Air StationCode for Design of Industrial Metal Piping.
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