In a vinyl chloride shell-and-tube heat exchanger, where vinyl chloride flows through the shell side, how can impurities such as self-polymers that affect the heat exchange efficiency be removed?
Thread Content
In a vinyl chloride shell-and-tube heat exchanger, where vinyl chloride flows through the shell side, how can impurities such as self-polymers that affect the heat exchange efficiency be removed?
Vinyl chloride is routed through the tube side, allowing impurities such as self-polymers to be easily removed from within the tube side.
It is generally cleaned with high-pressure water; if the blockage is severe, a steel rod is used to clear it.
For our vapor-phase VC, there are cases where it flows through the shell side; however, we haven’t seen any case of it flowing through the shell side in the liquid phase. There must be a reason for this from a design perspective. .
In condensers, the gaseous monomers flow through the tube side; they tend to polymerize on their own. During recovery, it’s also easy for impurities to be carried along. Generally, substances that can cause structural issues or blockages are those that flow in the tube side
Are there any good ways to prevent clogging?
Generally, to prevent clogging, one can only add a polymerization inhibitor or install a filter in advance; there are no other good solutions.
Are you from that unit? Where is your hometown? Add me on QQ after seeing this: 1450462486.
I haven’t heard of a single unit being used in the shell side. If you must go, a polymerization inhibitor can be added.