Some thoughts on washing high-pressure to medium-pressure systems with low-temperature methanol
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What type of regulating valve should be installed in the middle of the low-temperature methanol washing system from the high-pressure system to the medium-pressure flash evaporation system? If the valve core of the regulating valve suddenly falls off, pay attention to the impact of excessive pressure difference on the equipment when using bypass adjustment. It is better for some companies to add a flow-restricting orifice plate to the bypass valve. But do you think there are certain limitations to adding a flow-limiting orifice plate here? ?
It is an ordinary liquid level regulating valve, sometimes with a cut-off ball valve in series behind it for interlocking and cutting to prevent high pressure from flowing into low pressure. As for the auxiliary line valve, I think if it is necessary to add an orifice plate to limit the flow, it would be better to have a thinner auxiliary line pipeline and a smaller valve.
Ours is a quick-closing chain valve first, and then the liquid level regulating valve. When the liquid level is lower than the chain value, the quick-closing valve will act.