Questions about heat exchangers
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For the top water cooler of the sulfur recovery regenerator, when acidic gas flows in the shell side and cold water flows in the tube side, the circulating cold water is under automatic control; in this case, should the automatic control valve for the cold water be located at the inlet or the outlet of the heat exchanger? ? ? ? ? ? ? ? ? ? ?
Export 1: Facilitates control and adjustment of operations. 2: Increases the pressure of the cooling water so that it is higher than the pressure of the acidic gas; this prevents the acidic gas from leaking into the cooling water in case of leaks in the heat exchanger. 3: Increases the flow rate of the cooling water to enhance heat exchange efficiency. This post was last edited by weiguochang on 2008-2-27 21:38.]
If it is placed at the inlet, it can be isolated using the downstream manual valve of the heat exchanger; we use it this way here as well. Increasing the pressure in the tube side of the control valve also helps to speed up the flow rate.
Either entrance or exit will work; water flows through the pipe side, and the opening and closing of the control valve have little impact on the flow pattern of the water.
What was said on the fourth floor is correct – the flow pattern of water is basically not affected by the position of the switch!
Here, we place the control valve in front of the heat exchanger, but the heat medium is heavy oil and gas (from coal chemical processing), which is different from the acidic gases mentioned by the original poster. For reference only. This post was last edited by ts_tym on 2008-3-6 14:14]
Is it the water cooler at the top of the rich amine liquid regeneration tower? If it is this water cooler, it doesn’t matter whether an adjustment valve is used or not; our plant’s design does not include such a valve