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A device and method for testing the permeability of porous materials

A technology of porous materials and permeability, applied in the field of testing devices, can solve problems such as natural environmental pollution, health hazards of surrounding people, etc., and achieve the effect of ensuring accuracy

Inactive Publication Date: 2018-04-24
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the sewage discharged by chemical enterprises not only pollutes the natural environment, but also brings great harm to the health of surrounding people.

Method used

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  • A device and method for testing the permeability of porous materials
  • A device and method for testing the permeability of porous materials
  • A device and method for testing the permeability of porous materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] like figure 1 and Figure 4 As shown, the method for measuring the permeability of a porous material using a device for testing the permeability of a porous material comprises the steps:

[0050] A circular porous material with a thickness of 2mm and a radius of 30mm is used with a permeable area of ​​25cm 2 1. After clamping and fixing the first pressing piece 17 and the second pressing piece 18 with a circular through hole in the cross section, they are placed in the sealed cavity 19, and the lifting table 12 is adjusted to fix the upper casing 9, thereby fixing the whole device .

[0051] After opening the first valve 3 and the second valve 7, the liquid inlet pump 2 sends the fluid from the liquid storage chamber 1 through the hose through the first valve 3 to the inlet of the lower fluid channel in the lower fluid shell, and the first pressure gauge 4 Measure the pressure of the fluid before permeation. After entering the lower fluid channel, the liquid to be t...

Embodiment 2

[0053] like figure 1 and image 3 As shown, the method for measuring the permeability of a porous material using a device for testing the permeability of a porous material comprises the steps:

[0054] The length, width and height are respectively 28mm, 25mm and 7mm block porous material, with a permeable area of ​​24.62cm 2 1. After the first pressing piece 17 and the second pressing piece 18 with a rectangular cross section are clamped and fixed, they are assembled into the sealed cavity.

[0055] After opening the first valve 3 and the second valve 7, the liquid inlet pump 2 transports the fluid from the liquid storage bin 1 to the entrance of the lower fluid channel in the lower casing, and the fluid enters the fluid lower channel and passes through the block-shaped porous channel driven by the water flow Material 14, the permeated fluid is sent back to the liquid storage bin 1 after flowing through the upper fluid channel. The first pressure gauge 4 and the second pres...

Embodiment 3

[0057] like figure 1 , Figure 7 Shown in (a) and 7 (b), utilize the method for measuring porous material permeability of the device of testing porous material permeability, comprise the steps:

[0058] The length, width and height are respectively 25 mm, 40 mm, and 7 mm block porous material, clamped and fixed with the first pressing piece 17 and the second pressing piece 18 with a through hole whose cross section is circular and the through hole deviates from the center line. After that, it is assembled into the sealed cavity 19.

[0059] After opening the first valve 3 and the second valve 7, the liquid inlet pump 2 transports the fluid from the liquid storage bin 1 to the inlet 15 of the lower fluid channel in the lower housing, and the fluid enters the lower fluid channel and passes through the block driven by the water flow. Shaped porous material 14, the permeated fluid is sent back to the liquid storage bin 1 after flowing through the upper fluid channel. The first ...

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Abstract

A device and method for testing the permeability of porous materials, including a liquid storage tank and a clamping device, the clamping device includes an upper shell with an outlet and a lower shell with an inlet, an upper fluid channel is opened in the upper shell, and a lower shell A lower fluid passage is provided in the housing, and a retractable sealing cavity for placing the porous material to be tested is arranged between the upper fluid passage and the lower fluid passage. The liquid storage chamber is connected to the inlet of the lower fluid passage through the first pressure gauge, and the upper fluid passage The outlet of the outlet is connected with the liquid storage bin through the second pressure gauge and flow meter. The present invention adjusts the different heights of the sealing chamber by setting a retractable sealing chamber, can measure the liquid permeability and separation efficiency of tubular porous materials with different heights, and can test the uniformity of the penetration of porous materials, and can evaluate porous materials more quickly and conveniently Material performance requirements. The test device can measure the permeability of tubular, regular sheet and irregular porous filter materials.

Description

technical field [0001] The invention relates to a testing device, in particular to a device and method for testing the permeability of porous materials. technical background [0002] In recent years, with the rapid development of technological progress and industrial production, issues such as energy, resources, and waste management have received more attention. For example, the sewage discharged from chemical enterprises not only pollutes the natural environment, but also brings great harm to the health of the surrounding people. Nowadays, water treatment and purification has become an important part of environmental governance; the treatment, purification and separation of different wastewaters is particularly important; the development and application of special functional filter materials are also increasingly important. Due to the excellent properties of large specific surface area, low relative density, low thermal conductivity and high strength, the porous material w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
Inventor 李红伟尉楠梁俊平戚鹏超桑可正
Owner CHANGAN UNIV