Currently, with the increasing number of laboratory instruments, the placement of gas cylinders has become a major issue. Placing it indoors is neither safe nor beautiful, and it also occupies a large area. In buildings without elevators, the handling of steel cylinders in high-rise laboratories is also a major problem.
In response to this situation, gas circuit engineering has been derived. The steel cylinders can be centralized in a safe and convenient place, and various required gases can be introduced to each room through the gas path. According to the needs, a control box consisting of on-off valves, pressure gauges, pressure regulating valves, and gas flow meters can be installed in the room, which is safe, convenient, beautiful, and space-saving.
What are the advantages of laboratory gas path systems?
1. Higher utilization rate of laboratory environment: centralized pipeline supply system can place gas outlet at the point of use, which can more reasonably design the workplace.
2. Economy: Building a centralized gas cylinder room can save limited laboratory space, and it is not necessary to cut off gas when replacing steel cylinders, ensuring a continuous supply of gas. Users only need to manage fewer cylinders and pay less cylinder rent because all points of use for the same gas come from the same gas source. This supply method will reduce transportation costs, reduce the amount of remaining gas in empty cylinders returned to gas companies, and provide good cylinder management.
In the design and installation of laboratory gas pipeline engineering, the advantages of using centralized gas supply to transport high-purity gas are as follows:
1. Maintain gas purity
Special gas cylinders are equipped with a flushing valve to remove impurities introduced during each cylinder replacement, ensuring the purity of the gas at the end of the pipeline.
2. Uninterrupted gas supply
The gas path control system can be manually or automatically switched between cylinders to ensure a continuous supply of gas.
3. Low pressure warning
When the air pressure is below the alarm limit, the alarm device can automatically initiate an alarm.
4. Stable gas pressure
The system adopts a two-stage pressure reduction method (the first stage is regulated by the gas supply control system, and the second stage is regulated by the control valve at the point of use) to supply gas, which can obtain a very stable pressure.
5. High efficiency
Through the gas supply control system, the gas in the steel cylinder can be fully used to reduce the residual gas and reduce the cost of gas consumption.
6. Easy to operate
All gas cylinders are concentrated in the same location, reducing handling and installation operations, and saving time and cost.
7. Reduce the rental of gas cylinders
The adoption of a central gas supply system can reduce the requirement for the number of gas cylinders, thereby saving the rental and purchase costs of gas cylinders.
8. Reduce molecular sieve loss
Controlling gas purity can effectively reduce the amount of molecular sieve used (cost saving).
9. No gas cylinders in the laboratory
Adopting a centralized gas supply system means that there are no gas cylinders in the laboratory, which has the following benefits: improving the sense of safety, as gas cylinders may lead to dangerous situations such as gas leakage and fire; Improve safety, as gas cylinders may fall to the ground causing damage or injury; Save space, removing gas cylinders from the laboratory can free up more experimental space.