详细说明
R900906827 DBET-5X/315YG24NK4V-1武穴黎翔机电设备有限公司,询价联系人:何女士
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询价传真:0713-6542758
询价QQ: 736567721,704552157 如果工作轮后盖板上无叶片,亦即为光滑盘时,则处于后盖板与泵壳间隙腔中的液体将以工作轮角速度的ω/2的旋转。此时,间隙空腔中的压力沿径向按抛物线规律分布,如图10-5中的压力将沿ABEKG分布,也就是说,轴封处的压力降低了。
10.2 停车密封
停车密封是动力密封的重要组成部分。当部件旋转频率降低或停车时,动力密封失去密封能力,只有依靠停车密封阻止流体泄漏。某些液封和气封液带有停车密封,以便停车后将封液、封气系统关闭。停车密封的结构类型有多种,其中应用Z广的是离心式停车密封,此外还有压力调节式停车密封,胀胎式停车密封等。DGMC 3 PT GK 41
DGMC 3 PT GK B 41
DGMC 3 PT GW 41
DGMC 3 PT GW B 41
DGMC 3 PT GW S 41
DGMC 5 AB GW 30
DGMC 5 AT AW B 30
DGMC 5 AT BH B 30
DGMC 5 AT BW B 30
DGMC 5 AT FW B 30
DGMC 5 AT GH B 30
DGMC 5 AT GW B 30
DGMC 5 BA GH 30
DGMC 5 BT AW B 30
DGMC 5 BT BW B 30
DGMC 5 BT FW B 30
DGMC 5 BT GH B 30
DGMC 5 BT GW B 30
10.2.1离心式停车密封
图10-10所示是一种典型的离心式停车密封结构,泵运转时靠背叶片的离心作用密封。停车时,在弹簧力推动下,使泵轴向左滑移而将锥套填料抵紧,阻止泄漏。起动后离心子甩开,其抓部拔动轴肩使轴左移,将锥套与填料密封脱开,是密封面不受磨损。
10.2.2 压力调节式停车密封 R900925024 DBET-5X/315G24NK4M
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与螺旋密封组合的压力调节式密封,停车时,可在轴上移动的螺旋套,在弹簧力推动下,是其台阶端面与机壳端面压紧而密封。运转时,两段反向的螺旋使间隙中的粘性流体在端面处形成压力峰,作用于螺旋轴的台阶端面处使其与壳体端面脱离接触。
带有滑阀的停车、密封。当压差缸卸压,片弹簧推移的滑阀与轴肩接紧而实现停车密封。
10.3 全封闭密封
10.3.1 全封闭密封 R900917194 DBET-5X/200G24N9K4M
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R900546617 DBET-5X/315G24K4M 减压阀DGMX2-3-PP-BW-B-40
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电磁阀DG4V-3-2AL-M-U-H7-60
电磁阀DG4V-3-2A-M-U-B6-60
电磁阀DG4V-32A-M-U-H-7-60
电磁阀SV3-12-C-0-00
电磁换向阀DG4V 3 0C M U H7 60
电磁阀DG4V-3-2A-M-U-D6-60
方向阀DG5S4-042A-M-U-H7-71
电磁阀线圈481865C2 DC24V
电磁阀DG4V-3-8C-VM-U-H7-61 21H13KB190 31A2FV15-U 21WA4KOB130(双) 21W7KB500
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