Is there no shut-off valve on the pipeline from the tower top to the condenser?
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The specifications state: No isolation valve shall be installed on the pipeline from the top of the tower to the condenser? May I ask why? Thank you!
At the beginning of the problem, you should indicate the document name with the citation number for the \"regulations\", and then include your process diagram – it will be easier to explain things by referring to the diagram. Additionally, coolers are installed at the top of the tower; there are also those with an inner and outer section, as well as various types of installations. It is usually due to process requirements. It’s better to start by learning the principles of the process.
Probably to minimize the pressure drop. Additionally, there are valves at both the inlet and outlet of the condenser, so there is no need to install additional shut-off valves; they are hardly used at all
A condenser is not used to reduce pressure drop, but valves should be installed at its inlet and outlet and kept fully open
Why is it done without installing valves in order to reduce pressure drop? Valves increase resistance loss. But it’s really not necessary to add a cut-off valve. As the pressure of the gas at the top of the tower decreases, the boiling point drops, requiring a lower temperature and more cooling capacity for condensation
There is still some pressure loss even when the valve is fully open. In order to keep the vapor pressure of the condensate in the top condenser as close as possible to the top pressure of the tower, no shut-off valves are installed on the pipeline from the tower top to the condenser, unless there are special requirements for process control.
Thank you all for your help, thank you!