Water cooler shutoff
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As autumn and winter arrive and temperatures gradually drop, the cooling load on the medium decreases. Most refineries employ the practice of reducing the flow through the water coolers in order to save energy and reduce consumption. So, does reducing the flow through a water cooler mean closing the inlet valve or the return valve? Is there any theoretical basis?
It’s better to close the inlet valve! You can refer to this post: http://bbs.hcbbs.com/viewthread.php?tid=543350&page=1#pid3038632
I think the inlet valve should be turned down to prevent pressure buildup at the outlet.
The last edit to this post was made by 2001061713 on 2009-9-21 at 21:09; in winter, to shut off the water cooler, one must close the return water valve and open the connection valve. The reason is that closing the inlet valve stops the flow of cooling water in the pipeline from the circulation water supply line up to the water supply valve, which can lead to freezing and damage to the pipeline. Turning off the return water valve will prevent this issue; the key is to open the connection valve.