1756-IT6I2

1756-IT6I2

迷宫密封是离心式压缩机级间和轴端基本的密封形式，根据结构特点的不同，可分为平滑式、曲折式、阶梯式及蜂窝式等四种类型。

1、平滑式迷宫密封

平滑式迷宫密封有整体和镶片两种结构，它结构简单，便于制造，但密封效果较差。

2、曲折式迷宫密封

曲折式迷宫密封也分整体和镶片两种结构，这种迷宫密封的结构特点，是密封齿的伸出高度不一样，而且高低齿相间排列，与之相配的轴表面，是特制的凹凸沟槽，这种高低齿与凹凸槽相配合的结构，使平滑的密封间隙变成了曲折式，因此，增加了流动阻力，提高了密封效能。但只能用在有水平剖分面的缸体或隔板中，并且密封体也要作成水平剖分型。

3、阶梯式迷宫密封

阶梯式迷宫密封从结构上分析它类似于平滑式迷宫密封，而密封效果却与曲折式迷宫密封近似，常用于叶轮盖板和平衡盘处。

4、蜂窝式迷宫密封

蜂窝式迷宫密封的密封齿片焊成蜂窝状，以形成复杂形状的膨胀室，它的密封性能优于一般密封形式，适用于压力差较大的场合，如离心式压缩机的平衡盘密封。蜂窝式迷宫密封制造工艺复杂，密封片强度高，密封效果较好。

1756-IT6I2 

7001-5343-901

WSP-009 JAB306f 7R 319021

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1756-IT6I2