Safe flow rate for ethylene oxide?
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What is the safe flow rate for ethylene oxide? Urgent need, those who know please help, thanks
Common flow velocity range for fluids in pipes: Serial number, Name of the fluid, Operating conditions or pipe diameter range, Flow velocity in m/s. 1: Saturated steam, DN>200, DN=100～200, DN
It is 2 meters per second. It’s my experience points. Because I have been involved in the design of ethylene oxide plants. It is particularly important to note that copper wires should be used for bonding at the flange joints of all ethylene oxide pipelines, and reliable metal grounding wires should be connected every 50 meters of pipeline.
Thank you. I checked the design manual, which states that the speed for flammable and explosive materials is 1 M/S, but it doesn’t specify that it refers to ethylene oxide
As long as it is under 2 meters, it’s fine. It should be noted, however, that before starting up the equipment and pipelines of the EO system (or after maintenance), air must be purged using nitrogen. It is very dangerous when there is air in the EO pipeline. Another point: if you need to transfer EO to another container during maintenance, the hoses and containers must not contain any alkaline substances, not even in trace amounts. When EO comes into contact with alkalis, a polymerization reaction occurs, leading to an explosion.
It is related to the generation of static electricity; for example, when filling an EO tank truck, the initial flow rate should be 1 m/s, and it can be increased to 2 m/s once the bottom of the tank has been filled.
These are exactly what we need; we have learned about them. However, our epoxy delivery pipelines are equipped with flame arresters. Does this indirectly help to increase the flow rate, or is it merely for safety reasons?
Have you designed EO reactors?