Deaerator layout
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Generally, the deaerators of 600,000 unit units are arranged at the 26-meter or 29-meter level. How is this height determined? I heard from others that this is related to cavitation of the water pump. However, some design institutes arrange the deaerator on the operating floor of 13.7m. Can experts please advise how to check and calculate the height of the deaerator? Thank you so much!
This should be determined by the operating pressure, temperature and installation height of the water supply pump. The height difference between atmospheric oxygen removal and oxygen removal is generally more than 8 meters.
It doesn't matter much. There is a pre-pump in front of the water supply pump, and the 13.7-meter length should be able to meet the requirements. The #3 unit of Shantou Huaneng Power Plant seems to be arranged on the operation level.
Thank you everyone, but during the transient state, we need to consider whether cavitation occurs in the front pump.