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    熱點產品
    非標壓力容器
    新型薄膜蒸發器
    蒸發結晶機組
    mvr蒸發器
    旋轉蒸發器
    有色金屬設備制造
    有色金屬復合材料

    地址:遼寧省鐵嶺縣新臺子工業園區
    郵編:112611
    電話:024-78818088
          024-78818086
    傳真:024-78818088
    郵箱:tianshihuaji@vip.163.com
    網址:www.xinleisl.com

    當前位置:首頁 >> 產品展示
    MVR蒸發器工作原理

    MVR蒸發器是一種新型高效節能蒸發設備,采用低溫與低壓汽蒸技術和清潔能源為電能,產生蒸汽,將媒介中的水分分離出來,是目前國際最先進的蒸發技術,替代傳統蒸發器的升級換代產品。

    1、基本原理

        MVR蒸發器 ,是英文mechanical vapor recompression的簡稱。mvr是重新利用它自身產生的二次蒸汽的能量,從而減少對外界能源的需求的一項技術。MVR蒸發器不同于普通單效降膜或多效降膜蒸發器,MVR為單體蒸發器,二次蒸汽,經過壓縮機的壓縮,壓力和溫度得以升高,熱焓隨之增加,被送到蒸發器的加熱室當作加熱蒸汽即生蒸汽使用,使料液維持蒸發狀態,而加熱蒸汽本 身將熱量傳遞給物料本身冷凝成水。這樣,原來要廢棄的蒸汽就得到了充分的利用,回收了潛熱,又提高了熱效率。產品在第一次經過蒸發室后不能達到所需濃度時,產品依靠自重到達加熱室,在離開加熱室后通過下部的泵將產品通過管路抽到蒸發室再次通過蒸發,然后通過這種反復循環以達到所需濃度。除開車啟動外,整個蒸發過程中無需生蒸汽。

    2、特點

    1)無需生蒸汽蒸發,僅僅依靠回收二次蒸汽的余熱和機械壓縮就可維持正常蒸發;

    2)無需冷凝系統,不需要冷卻水去冷卻二次蒸汽;

    3)產生的冷凝水屬于蒸汽冷凝水,可以任意使用,實現零排放;

    4)可以實現低溫蒸發,適合熱敏物料濃縮;

    5產品與加熱介質之間的溫度差小,有利于保護產品質量;

    6)低能耗,低運行費用;

    7占地面積小,自動化程度高;

    8公用工程配套少,工程總投資少;

    9對于需要擴建蒸發設備而供汽,供水能力不足,場地不夠的現有工廠,特別是低溫蒸發需要冷凍水冷凝的場合,可以收到既節省投資又取得較好的節能效果。

    3、應用

    早在60年代,德國和法國已經成功的將該技術應用于化工、制藥、造紙、污水處理、海水淡化等行業。目前國內的使用場合:

    1) 生物制藥、化工行業廢水濃縮結晶;

    2) 無機鹽產品的濃縮結晶;

    3) 藥物的蒸發濃縮結晶;

    產品的濃縮度在50%左右時僅MVR蒸發器就能完成,當所需濃度為60%時則需安裝閃蒸設備。

    MVR蒸發器與多效蒸發器對比
         以蒸發量5噸一個小時的三效蒸發器為例,蒸發一噸水能耗0.45噸蒸汽,蒸汽價格200元,5噸蒸發量能耗為0.45*5*200=450元。若考慮計算冷卻水的費用每小時約30元,一小時能耗480元,一年7200小時,總費用為480*7200=345.6萬元
           若采用mvr蒸發器蒸發器傳統物料,暫不考慮物料由于沸點升變化帶來的能耗損失,蒸發一噸水電耗30kw,五噸水能耗1.0*30*5=150元,因為是利用物料作為冷卻系統,沒有冷卻水的費用,一年7200小時,總費用為150*7200=108萬元
          根據分析,采用mvr蒸發器 比采用三效蒸發器,一年可節省費用:345.6-108=237.6萬元。當然,這里是理論數據,實際上會稍有不同,但大體上可以確認mvr蒸發器確實比傳統蒸發器的節能空間是非常巨大的。根據現有的客戶使用情況,基本上可以得出這樣的結論,使用mvr蒸發器的廠家,所有投資基本上可以在設備使用6-12個月內回收。這個投資回報比,相信應該是很不錯的成績了。

    20 /小時蒸發量運行成本(高濃度有機廢水)

    設備 

    機械蒸汽再壓縮降膜蒸發器 

    傳統4效降膜蒸汽加熱蒸發器 

    機械壓縮機 

    315 KW/h 

    157.5 RMB 

     

     

    循環泵耗電 

    30 KW/h 

    15 RMB 

    30 KW/h 

    15 RMB 

    冷凝水泵耗電 

    15 KW/h 

    7.5 RMB 

    15 KW/h 

    7.5 RMB 

    真空泵耗電 

    7.5KW/h 

    3.75RMB

    15 KW/h 

    7.5RMB 

    冷卻塔耗電 

     

    7.5 KW/h 

    3.75 RMB 

    冷卻水循環泵 

     

    22.5 KW/h 

    11.25 RMB 

    鮮蒸汽 

     

    5500kg/h 

    825 RMB 

    冷卻水 

    30 m3/h 

     

    330 m3/h 

     

    每小時費用 

     

    183.75 RMB 

    870RMB 

    每噸成本 

     

    9.18 RMB 

    43. 5 RMB 

    版權所有:遼寧天實化工機械有限公司  地址:遼寧省鐵嶺縣新臺子工業園區  電話:024-78818088  024-78818086  傳真:024-78818088
    郵箱:tianshihuaji@vip.163.com  郵編:112611  網址:www.xinleisl.com  遼ICP備13009174號-1   技術支持:大友科技
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