A gas pipeline leads to a device containing a solution; is a check valve needed at the connection point to the device?
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A gas pipeline leads to a device containing a solution, and the gas dissolves in the solution. Is it necessary to install a check valve at the connection point to the device? Why? :)
If possible, it would be best to include a small flowchart; explaining things with the help of a diagram allows for a more accurate and comprehensive presentation. If the pressure in the gas pipeline is higher, \"in liquid handling equipment to prevent backflow of liquid in the event of a gas supply interruption, check valves and stop valves must be installed.\" If the liquid is at atmospheric pressure and the gas pipeline inlet is above the liquid level, a check valve is not necessary. It depends on the specific process requirements to determine whether to install it. It’s not about design either; just understand the existing principles, and that’s it. I like this kind of knowledge; I recommend the reference book \"Principles of Chemical Engineering\"
It should be added that this is not something to consider under normal circumstances; the function of a check valve is to prevent backflow in abnormal situations.
Generally, utility lines connected to the material flow need to have anti-backflow measures in place
Pipes inserted inside the device can have anti-siphon holes installed in the pipes above the high liquid level alarm level.