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  • 冷卻塔改造廠家聯(lián)系方式
  • 冷卻塔維修
  • 冷卻塔改造方案的主要內容有哪些
當前位置:特菱首頁 > 冷卻塔百科 > 解決方案 > 閉式冷卻塔的性能特點及工作步驟(閉式冷卻塔的性能)

閉式冷卻塔的性能特點及工作步驟(閉式冷卻塔的性能)

日期:2023-05-10 發(fā)布者:冷卻塔配件廠家 閱讀量:

閉式冷卻塔的性能特點及工作步驟(閉式冷卻塔的性能)

  閉式冷卻塔是將管式換熱器放在塔內,通過循環(huán)空氣、噴淋水和循環(huán)水之間的熱交換來保證冷卻效果.因為它是一個封閉的循環(huán),可以保證水質不受污染,能夠有效地保護主設備的高效運行,提高使用壽命.當室外溫度較低時,可以停止噴水系統(tǒng),達到節(jié)水效果.近年來,隨著國家節(jié)能減排政策的實施和水資源的短缺,封閉冷卻塔已廣泛應用于鋼鐵冶金、電力電子、機械加工、空調等行業(yè)。

  根據流動方向和風向,可分為逆流封閉冷卻塔和交叉流閉式冷卻塔.根據殼體材料可分為:鍍鋅鋼板封閉冷卻塔、鋁鋅板封閉冷卻塔、不銹鋼封閉冷卻塔、玻璃纖維增強塑料封閉冷卻塔等。

  根據熱交換器的材料,可分為銅管封閉冷卻塔、不銹鋼管封閉冷卻塔、碳鋼管封閉冷卻塔、鈦管封閉冷卻塔、鋁管封閉冷卻塔等.根據風機類型,可分為閉式通風冷卻塔和閉式閉式冷卻塔。

  封閉冷卻塔實際上是一種蒸發(fā)式冷卻塔,是冷卻塔和濕式冷卻塔的結合.這是一個水平蒸發(fā)冷卻塔.過程流體流過管子,空氣流過管子,兩者之間沒有接觸.封閉冷卻塔是傳統(tǒng)冷卻塔的變形和發(fā)展.塔底儲層的水由循環(huán)泵抽出,輸送到管道外部均勻噴灑.它不是與工藝流體熱水或制冷劑和管外空氣的接觸.它成為一個封閉的冷卻塔,通過噴水提高熱量和傳質效果。

  閉式冷卻塔正常工作步驟

  從目前的情況來看,閉式冷卻塔廣泛應用于國民經濟各部門,對空調、制冷、空壓站、加熱爐及冷凝工藝等冷卻水循環(huán)系統(tǒng)效果更是能起到顯著的作用。在正常工作的情況下,閉式冷卻塔是怎么保持有條不紊的工作的?

  相比其他制冷設備而言,閉式冷卻塔的優(yōu)勢是很突出的,它不僅耐腐蝕、強度高、重量輕、體積小、占地少、美觀耐用,并且運輸、安裝和維修都較方便。它的整個工作過程也比較簡單,首先由風機抽取外界干燥的空氣,使得空氣被吸入到冷卻塔內。

  在閉式冷卻塔內部,那些溫度高、壓力大的水分子就會流向小壓力的空氣;然后在壓力的作用下產生一種蒸發(fā)的現(xiàn)象;促使水中存在的熱量會被水蒸氣吸走,從而達到閉式冷卻塔的冷卻降溫作用。

  對于閉式冷卻塔而言,它的降溫效果取決于散熱片、風機風量、冷卻塔使用水量等,另外通風條件、安裝位置也會對其效果產生一定的影響。作為冷卻塔的關鍵部件,散熱片的選用是有要求的,通常小型的閉式冷卻塔會采用PVC片材熱壓或熱吸式作為散熱片。

  而大型的閉式冷卻塔就會采用木材,主要目的使空氣與水的接觸面在不影響風阻時,且越大越好,同時熱交換率也達到超大。當散熱片在影響設備傳熱效果的時候,主要將涉及到它們的形狀和高度這兩個參數,所以安裝的時候盡量不要損壞散熱片,以免散熱片水流不暢。

  另外,風機風量的作用主要是加速閉式冷卻塔中的空氣流動,加速空氣與水的熱交換,帶走熱量。從以往的經驗來看,影響風機風量主要是風葉形狀和本身偏角,風葉轉速、安裝角度、轉速與電機及傳動比等。另外,在風量一定的情況下,同種類型塔,冷卻水量小的比冷卻水量大的冷卻效果要好些。

以上就是冷卻塔改造廠家廣東特菱節(jié)能空調為大家?guī)黹]式冷卻塔的性能特點及工作步驟(閉式冷卻塔的性能)的內容,廣東特菱空調專業(yè)從事冷卻塔改造,冷卻塔維修,冷卻塔清洗,冷卻塔保養(yǎng),服務工業(yè)領域,產品包括玻璃鋼冷卻塔,工業(yè)冷卻塔等并提供全方位的冷卻塔改造方案,涵蓋深圳,廣州,珠海,惠州,東莞等,致力于打造變成優(yōu)質的冷卻系統(tǒng)和配套設施服務項目的廠家。

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