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    1、什么是布水器,為什么需要布水器?

    在《蓄冷空調技術與設計》中對布水器的定義為“在一定的工作面積上按一定規律布置水流特征的裝置”,通俗點說就是分布水流的器具。


    2、蓄能設備內部的布水器方式?什么時候或什么方案應用什么樣的布水器比較合適?

    用的布水器幾乎都是溫度分層型布水器,溫度分層型布水器常用的幾種形式:八角形、條縫形、徑向圓盤形、H形布水器和隔板式布水器。 根據蓄能設備的具體形狀選擇布水器方式,以盡量不出現布水死角為宜,比如一般的方形和臥式圓筒形選用H形或隔板式布水器,立式圓筒形可采用八角形、徑向圓盤形或H形布水器,但是如果類塔式容器(俗稱開式蓄能設備)的徑高比太小的話也不太適宜用這幾種形式的布水器。


    3、布水器的設計依據什么?

    弗勞德數(Fr)和雷諾數(Re)是布水器設計的核心要素,有效的控制弗勞德數、雷諾數,確保水流均勻和層流效果,才能更好的控制斜溫層厚度,確保有效容積,從而滿足設計及使用的安全要求。   

 



    4、水的流速是怎么算出來的?客戶會提供水流速是多少,會影響我們罐子的設計嗎?

    水的流速根據水力計算得出。流速是暖通設計里面的一個主要參數,對于不同的系統流速的要求是不一樣的。對于蓄能系統設計而言,布水器設計需要流量,我們根據不同的設計需求控制流速范圍,達到布水的目的。如果客戶提供流速的同時,請提供管徑。


    5、罐子進水和出水之間的壓力差是怎么算的,有沒有一個范圍?和揚程的關系。

    壓力差相當于阻力損失,不同的系統與設備是不一樣的,范圍不好定;水泵的揚程就是克服系統阻力,讓水在系統中處于循環運行狀態,而罐子進水和出水之間的壓力差只是阻力的一部分,水泵的揚程是這一循環水路總水阻的1.15倍。


     6、蓄能設備作為應急冷源使用時,何時用串聯系統、何時用并聯系統?

     系統沒有串并聯之分,只是在蓄冷的時候是單獨有蓄冷主機進行蓄冷,還是使用原有冷水機組進行蓄冷的區別。何時使用兩種不同的方式,是設計師在總體系統設計時考慮多方面因素決定的,如投資、占地、系統具體要求等。


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