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氯化鈉廢水專用蒸發結

氯化鈉廢水專用蒸發結

產品詳情

為了降低料液的沸點溫度從而提高蒸發速率,多效降膜式蒸發器都是在真空減壓狀態下工作的,蒸發溫度高的另一個原因是設備漏氣嚴重。老式的蒸發器中,二次蒸汽管道兩端與效體分離器的連接,下器體與效體的連接,分離器方接口與下器體方接口的連接均采用法蘭式可拆卸連接,膠墊極易老化,漏氣嚴重,真空度難以保持,查找漏點困難,因此各效蒸發溫度不穩定且降膜管底端(下管板處)結焦、結垢嚴重。近幾年,大多數蒸發器上述幾處已由原來的可拆卸式連接改為焊接式結構,在使用過程中真空度高,機器運轉穩定,末效分離器真空度多在0.080~0.085MPa之間,其蒸發溫度較低,結垢、結焦現象大大降低。因此,盡量減少不必要的可拆卸式連接就會減少漏氣的可能,使設備在較高的真空狀態下工作,其蒸發溫度處于正常范圍?! ?/p>

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