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          當前位置: 首頁 » 供應產品 » » 多級泵 »DG155-67*9,長沙東方工業泵廠現貨,DG鍋爐給水泵

          DG155-67*9,長沙東方工業泵廠現貨,DG鍋爐給水泵

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          產品價格: 1200/人民幣 
          最后更新: 2013-08-02 16:37:10
          產品產地: 長沙
          發貨地: 長沙 (發貨期:當天內發貨)
          供應數量: 不限
          有效期: 長期有效
          最少起訂: 1
          瀏覽次數: 125
          詢價  家家通會員產品
        2. 公司基本資料信息
          • 長沙東方工業泵廠
          • 李經理小姐 經理
          • 會員[家家通會員產品]
          • 郵件475946464@qq.com
          • 手機13755154094
          • 電話
          • 傳真
          • 地址長沙市雨花區機電市場B區
          • 進入商鋪
           
          產品詳細說明
          DG155-67*9,DG155-67*9,鍋爐給水泵--------------------------現貨最低出廠價格,質量和服務一流,電廠高溫鍋爐配套專用!----------DG155-67*9,DG155-67*9,DG155-67*9,流量:155m3/h(立方米每小時),揚程:603m(米),電機450KW(千瓦)-2極。我們的宗旨,為客戶解決問題為己任,什么都有就是沒有后顧之憂!
          DG155-67*9
          DG155-67*9,DG155-67*9
          DG155-67*9,DG155-67*9,DG155-67*9
          ***************************************************************************************
          知識交流區-------------------------------------多級泵泵用機械密封檢修中的幾個誤區
           1.彈簧壓縮量越大密封效果越好。其實不然,彈簧壓縮量過大,可導致摩擦副急劇磨損,瞬間燒損;過度的壓縮使彈簧失去調節動環端面的能力,導致密封失效。
            2.動環密封圖越緊越好。其實動環密封圈過緊有害無益。一是加劇密封圈與軸套間的磨損,過早泄漏;二是增大了動環軸向調整、移動的阻力,在工況變化頻繁時無法適時進行調整;三是彈簧過度疲勞易損壞;四是使動環密封圈變形,影響密封效果。
            3.靜環密封圈越緊越好。靜環密封圈基本處于靜止狀態,相對較緊密封效果會好些,但過緊也是有害的。一是引起靜環密封因過度變形,影響密封效果;二是靜環材質以石墨居多,一般較脆,過度受力極易引起碎裂;三是安裝、拆卸困難,極易損壞靜環。
            4.多級泵葉輪鎖母越緊越好。機械密封泄漏中,軸套與軸之間的泄漏(軸間泄漏)是比較常見的。一般認為,軸間泄漏就是葉輪鎖母沒鎖緊,其實導致軸間泄漏的因素較多,如軸間墊失效,偏移,軸間內有雜質,軸與軸套配合處有較大的形位誤差,接觸面破壞,軸上各部件間有間隙,軸頭螺紋過長等都會導致軸間泄漏。鎖母鎖緊過度只會導致軸間墊過早失效,相反適度鎖緊鎖母,使軸間墊始終保持一定的壓縮彈性,在運轉中鎖母會自動適時鎖緊,使軸間始終處于良好的密封狀態。
            5.新的比舊的好。相對而言,使用新機械密封的效果好于舊的,但新機械密封的質量或材質選擇不當時,配合尺寸誤差較大會影響密封效果;在聚合性和滲透性介質中,靜環如無過度磨損,還是不更換為好。因為靜環在靜環座中長時間處于靜止狀態,使聚合物和雜質沉積為一體,起到了較好的密封作用。
            6.拆修總比不拆好。一旦出現多級泵機械密封泄漏便急于拆修,其實,有時密封并沒有損壞,只需調整工況或適當調整密封就可消除泄漏。這樣既避免浪費又可以驗證自己的故障判斷能力,積累維修經驗提高檢修質量。
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