Rapid penetration testing device for low-penetrability media
A permeation test device and low permeability technology, applied in the field of rapid permeation test devices, can solve the problems of small variation range of water head difference, easy error of water head difference, ill-considered temperature change, etc., achieve simple structure, shorten measurement time, Simple and fast effect
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[0018] like 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] like 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 device, l...
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