Rapid penetration test device for low permeability media
A low-permeability, medium technology, applied in the direction of measuring devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of small variation range of water head difference, easy error of water head difference, and poor consideration of temperature changes, etc. problems, to achieve the effect of simple structure, shortened measurement time, simple and fast operation
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[0018] Such as figure 1 As shown, this embodiment is a rapid permeation test device suitable for low-permeability media, including a water supply device, an osmometer, a suction filter bottle 16, an electronic balance 18, and a negative pressure device 19 (a digitally controlled vacuum pump).
[0019] Such as figure 2 As shown, the permeameter in this example has a base 3 , a cylindrical side wall 8 and a pressure-bearing upper cover 11 . The base 3 is shaped on a circular groove matching the size of the cylindrical side wall 8. The cylindrical side wall 8 is placed vertically, and the lower end of the cylindrical side wall is placed in the circular groove on the base 3. An O-shaped water stop ring 5 is arranged between the lower end surface of the cylindrical side wall 8 . A pressure-bearing upper cover 11 is provided above the cylindrical side wall 8, and the pressure-bearing upper cover can be used to close the upper end port of the cylindrical side wall 8. Pressing dev...
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