How to ensure safety when removing hoses at the hose station?
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Most of us have experienced this: after using a hose to connect an utility station to a certain device or pipeline and pressurizing the connection, we close the valves at both ends and then need to remove the hose. At that point, however, there is pressure inside the hose; such connections are usually made using quick connectors, and removing these connectors can be dangerous, as it may cause injury or at least produce a loud noise that is startling. On the hose station of the unit we were previously in, pressure relief drains were installed after the valves of each utility pipeline, which prevented the aforementioned issue from occurring ； But I checked the relevant design specifications, and it seems there are no design requirements in this regard; moreover, all other devices I’ve seen do not have pressure relief drains. I wonder if anyone has any handy tips to avoid this situation?
One has to take precautions on their own in this case; I was the victim – methanol got all over my body as a result of the spill. Fortunately, I’m nearsighted and wear glasses~~~ Be careful when releasing the liquid; the hose doesn’t have its own drain system. It would be better if the hose design included dual valves along with a drain system
I added a small pressure relief valve in the middle of the hose.
It’s important to be careful oneself, but I think what’s more crucial is to take these issues into account during the design phase, striving to address security problems at their root
Well, I plan to add a pressure relief valve next time I have the chance
Well, I plan to add a pressure relief valve next time I have the chance
Enterprises should establish safety technical regulations for the loading and unloading of hazardous chemicals, specifying requirements regarding operations, processes, facilities, safety warning signs, personal protective equipment, personnel qualifications, lightning protection, static electricity prevention, electrical systems, fire-fighting facilities, and emergency response to accidents. For details, refer to: DB37 1694-2010 \"Safety Technical Regulations for the Loading and Unloading of Volatile Liquid Organic Chemical Products\"