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color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1、冷水機組群控的意義</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1．1 節能:</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">–根據系統負荷的大小，開啟相應的機組，從而節能，并節省運行費用。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">–停開相應水泵，或降低水泵電機轉速，從而達到節能的目的。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1．2 長壽命運轉:積極群控，有助于延長機組壽命，提高設備利用效率。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1．3 設備保護:合理群控，使系統更舒適，避免過冷，更容易達到設計要求</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2、幾種可能的群控模式分析</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2．1 回水溫度控制法</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 回水溫度控制法原理:通過測量空調系統中冷凍水系統回水的溫度，根據其值的大小，從而決定開啟冷水機組的臺數，達到控制冷水機組臺數的目的。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 回水溫度控制法控制流程圖1</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 回水溫度控制法的分析</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 回水溫度適應性較差，尤其溫差小時，誤差大，對節能不利。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 可用于冷凍機的低溫保護和報警。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 但裝置簡單，價格便宜。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 判據不明確。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2．2 流量控制法</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 流量控制法控制原理:通過測量冷凍水流量獲得流量信號，然后再把此流量值與冷水機組的額定流量進行比較，從而實現對冷水機組的臺數控制。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 有關流量控制法的分析: 流量控制的原理是基于這樣三個假定</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 負荷與流量成正比</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 冷凍水供回水溫差恒定</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 在設計工況之下運行</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">但實際上，這三個假定一個也不能成立，更不可能同時成立。流量控制法雖能保證系統流量，避免冷水機組蒸發器結冰，但并不能很好的適應系統負荷的變化。因為盤管的傳熱量和流量并不是線性關系。實驗和研究表明，冷凍水流量和建筑物熱負荷之間呈對數關系。這種關系伴隨著冷凍水入口溫度、盤管尺寸結構和盤管表面積和盤管表面接觸的空氣溫度以及氣流速度的不同而變</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">化，所以它不僅是非線性的，還是一個隨著多種因素變動的曲線。不能反映負荷的變化，因而不能有效節能。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2．3 熱量控制法</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 熱量控制法控制原理:通過測量冷凍水供回水溫度和供（回）水流量獲得溫差和流量信號，然后將兩個信號依據熱力學公式計算實際的需冷量，再把此冷量值與冷水機組的產冷量進行比較，從而實現對冷水機組的臺數控制。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 熱量控制法控制流程圖；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 有關熱量控制法的分析：熱量控制法控制調節和節能效果好。不能保證系統流量以避免冷水機組蒸發器結冰。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2．4 流量/熱量控制法</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 流量/熱量控制法控制原理：同時考慮流量與熱量控制的作用，這是我們采用的方法之一，我們稱之為"流量/熱量控制法"。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 流量/熱量控制法一種控制流程圖；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 有關流量/熱量控制法的分析：制冷機組群控的目的是正確和適當的解決在工作點區域范圍內的控制，其方法是測定某些點的冷凍水流量和整個大樓的空調負荷，以某種算法和判據決定啟動或停止一臺制冷機組的時機。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">4) 如何判定機組開停：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">判據1：在啟動新增加的冷水機組時判定下列兩點：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 判定大樓對熱負荷的需求恰好超過在線運行的冷水機組的能力時。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 判定大樓對冷凍水流量的需求恰好超過在線運行的冷水機組的能力時。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 以上二條判據任意一條成立，既有效，為充分條件。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">判據2：在停止一臺運行的冷水機組時判定下列兩點：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 如果有N臺冷水機組在線運行，判定一個負荷量的切換點，在這一點，N-1臺冷水機組的額定負荷能力恰好等于當前N臺冷水機的負荷量。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 判定這樣一個工作點，在這一點停止一臺在線運行冷水機將不會導致大樓對冷凍水的需求量大于其余正在運行的冷水機組的能力。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 以上二條判據同時成立才有效，為充分必要條件。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">5) 如何判定開停哪一臺機組：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">控制目的：控制制冷機在負荷有效區段40%-100%范圍內工作。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">備選開機條件（在需要開啟一臺冷水機組時可按）：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 當前停運時間最長的優先；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 累計運行時間最少的優先；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 3、或者輪流排隊；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">備選停機條件（在需要停運一臺冷水機組時可按）：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 當前運行時間最長的優先；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 累計運行時間最長的優先；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 或者輪流排隊等等；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2. 5 壓差控制法</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 壓差控制法控制原理：集水器和分水器之間旁通管路上設有壓差電動調節閥。供回水總管之間壓差增大，說明用戶負荷及負荷側水流量減少，則調節旁通閥使其開度變大。但僅根據壓差進行臺數控制是很困難的。壓差的信號可以由壓差兩個壓力傳感器獲取信號后進行計算得到，或者直接由壓差傳感器得到。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 有關壓差控制法的分析：每個項目的壓差情況是不一樣的，因為每個項目的水系統是不一樣的。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 國內外的某些論文建議取消壓差控制，認為判據不明確。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2. 6 壓差/流量控制法</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 壓差/流量控制法控制原理：在壓差控制法的基礎上，在旁通管上加一個流量計和水流開關，就可以實現臺數控制，這是我們采用的控制方法之一，我們稱之為"壓差/流量法"。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 壓差/流量控制法控制流程圖；</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 有關壓差/流量控制法的分析：</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 根據流量與水流開關的判據明確。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">? 要求空調水系統設計合理，水泵流量/揚程選擇合理。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2．7 與數據接口相結合的群控</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 世界上最有影響的幾家冷凍空調制造商都聲稱有一套控制系統，如Carrie公司的DATAPORT，BA系統需要開發與之響應的數據接口，如KMC公司針對Carrier產品開發的KMD-5540系列。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) Carrier公司的DATAPORT等一般只對自己的機組控制負責，讓冷凍機組對空調系統負責是一個巨大的誤區。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 充分利用冷凍機組的數據接口，可降低BA群控系統的初投資，并同時增強BA系統的監控功能。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3、總結與提高</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">1) 必須根據具體項目進行個性化與藝術化設計。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">2) 更優化的設計需要建立專家支持系統。</span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); "><span style="color: rgb(68, 68, 68); font-family: Tahoma, 'Microsoft Yahei', Simsun; line-height: 21px; background-color: rgb(255, 255, 255); ">3) 必須把理論與實踐相結合。</span><script src="/inc/AspCms_VisitsAdd.asp?id=1205"></script> </div> <div id="C_wechat_link" style="display: none;"></div> <iframe style="display: none;width:100%;border-width: 0;overflow: hidden;" id="iFrame" width="100%"></iframe> <script> function getUrl(URL) { let http = (window.location.protocol === 'http:' ? 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