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應急冷源布水器特殊性
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數據中心水蓄能應急冷源布水器的特殊性主要體現在布水器的設計難度較大。對于數據中心蓄能系統,其蓄能時間長達幾個小時,但是放冷時間最多10幾分鐘,由于這時間的巨大差距,導致的供冷與蓄冷的水流速高度不統一,這對蓄能罐內的布水器提出了很高要求,為保證蓄能罐的蓄冷、供冷效率。布水器設計難度大具體如下:


1.要有效控制弗勞德數(Fr)及雷諾數(Re),確保水流均勻和層流效果,以便控制好斜溫層厚度,確保有效容積,從而滿足設計、使用的安全要求;

2.數據中心水蓄冷一旦啟用,通常要求15分鐘內要放冷完畢,這意味著在15分鐘內水蓄冷充分釋放,所以蓄冷罐要承擔自身容積4倍的水流通過,同時還需兼顧很多因素如:形成溫度分層(不能是紊流)、布水器不能有死角、水阻(進出口兩側壓差,不能給循環泵加太大的揚程)等。

3.布水器復雜、加工安裝難度高,因為在滿足應急冷源布水要求時,需要在罐內制作多組組合式布水器。如閉式水蓄能罐,則要在一個狹小范圍內,焊接完成多組布水器,其施工難度較為困難的,因為施工人員需在相當于一個密閉的空間內操作,同時還需兼顧通風等安全因素;而開式設備類似塔式的容器,則需高空作業。


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