Position of the cooling water pipeline control valve
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What is the difference between installing control valves at the outlet and at the inlet of a cooling water pipeline? Why are the cooling water control valves of some plate heat exchangers installed on the outlet pipeline? The control valve for the cooling water pipeline of the preparation tank is installed at the inlet.
Carefully designed circulating water control valves are generally installed on the outlet pipeline of the heat exchanger, with the aim of minimizing the possibility of dissolved oxygen being released as the circulating water temperature rises, thereby reducing oxygen corrosion on the circulating water side of the heat exchanger.
In my opinion, installing it in the outlet pipeline ensures the most efficient transfer of the measured temperature, while also guaranteeing that the system is filled with the heat exchange medium
For the chilled water coil piping of the kettle, why is the control valve installed on the inlet pipe? What considerations were taken into account?
In reaction equipment such as reactors, control valves are placed at the inlet in order to achieve precise temperature control!
Many documents require installation on the inlet pipeline
In my opinion, there’s no difference; even in an accident scenario, isolation is sufficient. What’s important is that the temperature measurement points are placed in appropriate locations. Whether it’s front control or back control, it’s all about flow control.