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法兰闸阀的构造在装置中应用的优点

发布时间:2016-12-31  编辑:taike 查看:

法兰闸阀的构造在装置中应用的优点
  Gate valve is a valve with a very wide,cutting device general caliber DN=50mm use it,sometimes a small diameter cutting device also use valve.
 
  Flanged gate valve refers to the closure of the valve(gate)along the central line of the vertical movement of the valve
 
  According to the structure of the gate valve can be divided into:
 
  (1):parallel valve sealing surface and the vertical center line parallel to the two valve sealing surface parallel to each other.In the valve in parallel with the wedge thrust structure with the most common double-sided thrust wedge gate two both in the middle,the gate voltage applied to small diameter(DN40-300mm in gate).
 
  There is also a spring between the two plates,the spring can be generated to the tight,conducive to the gate seal
 
  (2)wedge gate valve:sealing surface and the vertical center line into a certain angle,that is,the two sealing surface into a wedge gate valve
 
  The tilt angle of sealing surface generally have 2~52,3~30,5 degrees,8 degrees,10 degrees,the size of the angle mainly depends on the medium temperature.
 
  Generally higher temperature,the greater the angle should be taken to reduce the temperature when the possibility of wedging.
 
  闸阀是一种具有非常宽的切割装置的通用口径DN=50mm的阀门,有时使用小直径切割装置也使用阀门。
 
  法兰式闸阀是指沿着阀的垂直运动的中心线的阀(闸门)的关闭
 
  根据闸阀的结构可分为:
 
  (1):平行阀密封面与垂直中心线平行,两个阀密封面相互平行。在阀门中与楔形推力结构平行,最常见的是双侧推力楔形闸门两个在中间,闸极电压施加在小直径(DN40-300mm的闸门)。
 
  两板之间还有弹簧,弹簧可以产生紧密,有利于闸板密封
 
  (2)楔形闸阀:密封面与垂直中心线成一定角度,即两个密封面成楔形闸阀
 
  密封面的倾斜角一般有2〜52°,3〜30°,5°,8°,10°,角度大小主要取决于介质温度。
 
  一般较高的温度,当楔入的可能性时,应采取较大的角度来降低温度。

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