Permeability testing equipment

Abstract

The utility model discloses permeability testing equipment which comprises a permeability testing structure, a contrast testing structure, a first valve, a second valve, a throttle valve, an air source, an air inlet pipeline, a first branch pipeline, a second branch pipeline, a first output pipeline and a second output pipeline, the first valve is connected with the throttle valve through a first branch pipeline, the second valve is connected with the throttle valve through a second branch pipeline, the penetration test structure is connected with the first valve through a first output pipeline, and the contrast test structure is connected with the second valve through a second output pipeline. And a to-be-tested material can be placed in the first output pipeline. The device is simple in structure, low in cost and easy to operate, the material to be tested is tested mainly through airflow, the tested object is not prone to being damaged, and the device can be effectively suitable for various materials and is high in flexibility.

Description

Technical Field

[0001] The utility model relates to the field of material permeability testing, in particular to a permeability testing device. Background Art

[0002] Permeability refers to the ability of a material to allow fluids such as liquids or gases to pass through the material, and permeability testing is a testing method used to evaluate the permeability of materials.

[0003] However, common material permeability testing has the following disadvantages: the testing of many material permeability tests is likely to damage the material to be tested, and the applicable range of many material permeability tests is very small, and it can even only be adapted to the testing of a single material, with poor flexibility.

[0004] In addition, the implementation of existing material permeability testing often relies on the use of testing equipment with complex structures. Such equipment is costly and difficult to use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a permeability testing device and a cleaning device, which can solve one or more of the above problems.

[0006] According to one aspect of the utility model, a permeability testing device is provided, including a penetration testing structure, a control testing structure, a first valve, a second valve, a throttle valve, a gas source, an intake pipeline, a first branch pipeline, a second branch pipeline, a first output pipeline, and a second output pipeline.

[0007] The throttle valve is connected to the gas source through the intake pipeline. The first valve is connected to the throttle valve through the first branch pipeline. The second valve is connected to the throttle valve through the second branch pipeline. The penetration testing structure is connected to the first valve through the first output pipeline. The control testing structure is connected to the second valve through the second output pipeline. The material to be tested can be placed in the first output pipeline.

[0008] The beneficial effect of the utility model is that the utility model mainly relies on the gas source to supply gas, and successively makes the gas pass through the penetration testing structure and the control testing structure. By comparing the pressure differences on both sides, the permeability of the material to be tested can be calculated. The throttle valve can conveniently adjust the gas flow rate to obtain more test parameters to ensure the accuracy of permeability calculation. The structure of the utility model is simple, with low cost and easy operation. Moreover, it mainly tests the material to be tested through air flow, is not likely to damage the object to be tested, and can be effectively applied to various materials with strong flexibility.

[0009] In some embodiments, the penetration test structure includes a first cylindrical member, a first beaker, and a first bottom plate. The first beaker is disposed on the first bottom plate, the first beaker can hold liquid therein, and the first cylindrical member is disposed within the first beaker. By providing the first beaker containing liquid, when the gas penetrates the material to be tested, the user can observe the bubbles emerging from the liquid as the timing for measuring the air pressure requirement of the penetration test structure, which is simpler and more intuitive.

[0010] In some embodiments, the first cylindrical member is hollow, one end of the first cylindrical member is connected to a first output pipe, and a waterproof and breathable membrane is connected to the other end of the first cylindrical member. The provision of the waterproof and breathable membrane can prevent the water in the first beaker from entering the first cylindrical member.

[0011] In some embodiments, the control test structure includes a second cylindrical member, a second beaker, and a second bottom plate. The second beaker is disposed on the second bottom plate, the second beaker can hold liquid therein, the second cylindrical member is disposed within the second beaker, the structure and size of the second cylindrical member are the same as those of the first cylindrical member, the structure and size of the second beaker are the same as those of the first beaker, and the liquid capacity in the second beaker is the same as the liquid capacity in the first beaker. By providing the second beaker containing liquid, the user can observe the bubbles emerging from the liquid as the timing for measuring the air pressure requirement of the control test structure, which is simpler and more intuitive.

[0012] In some embodiments, the second cylindrical member is hollow, one end of the second cylindrical member is connected to a second output pipe, and a waterproof and breathable membrane is connected to the other end of the second cylindrical member. The provision of the waterproof and breathable membrane can prevent the water in the second beaker from entering the second cylindrical member.

[0013] In some embodiments, the present utility model further includes a pressure gauge and a third branch pipe. The pressure gauge is connected to a throttle valve through the third branch pipe. By providing the pressure gauge and the third branch pipe, it is convenient to display the pressure of the penetration test structure or the control test structure.

[0014] In some embodiments, the present utility model further includes a substrate. The penetration test structure, the control test structure, the first valve, the second valve, and the throttle valve are all mounted on the substrate. The provision of the substrate can facilitate the fixation of the above-mentioned various structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a permeability test device according to an embodiment of the present utility model.

[0016] Figure 2 It is a schematic diagram of a penetration test structure of a permeability test device according to an embodiment of the present utility model.

[0017] Figure 3 Schematic diagram of a control test structure of a permeability test device according to an embodiment of the present utility model.

[0018] In the figure: 1. Permeation test structure, 2. Control test structure, 3. First valve, 4. Second valve, 5. Throttle valve, 6. Gas source, 7. Intake pipeline, 8. First sub-pipeline, 9. Second sub-pipeline, 10. First output pipeline, 20. Second output pipeline, 30. Pressure gauge, 40. Third sub-pipeline, 50. Substrate, 11. First cylindrical part, 12. First beaker, 13. First bottom plate, 21. Second cylindrical part, 22. Second beaker, 23. Second bottom plate. Specific embodiments

[0019] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Reference Figure 1 、 Figure 2 and Figure 3 A permeability test device of the present utility model includes a permeation test structure 1, a control test structure 2, a first valve 3, a second valve 4, a throttle valve 5, a gas source 6, an intake pipeline 7, a first sub-pipeline 8, a second sub-pipeline 9, a first output pipeline 10 and a second output pipeline 20.

[0021] The gas source 6 can preferably be a high-pressure gas source, which can supply high-pressure gas. The throttle valve 5 can preferably be a needle-type throttle valve. One end of the intake pipeline 7 is connected and communicated with the gas source 6, and the other end of the intake pipeline 7 is connected and communicated with the throttle valve 5, so that the throttle valve 5 is connected to the gas source 6 through the intake pipeline 7, and the gas source 6 can supply high-pressure gas to the throttle valve 5 through the intake pipeline 7.

[0022] The first sub-pipeline 8 and the second sub-pipeline 9 preferably have partially shared pipelines. One end of the first sub-pipeline 8 is connected and communicated with the throttle valve 5, and the other end of the first sub-pipeline 8 is connected and communicated with the first valve 3, that is, the first valve 3 is connected to the throttle valve 5 through the first sub-pipeline 8.

[0023] One end of the second sub-pipeline 9 is connected and communicated with the throttle valve 5, and the other end of the second sub-pipeline 9 is connected and communicated with the second valve 4, that is, the second valve 4 is connected to the throttle valve 5 through the second sub-pipeline 9.

[0024] The penetration test structure 1 includes a first cylindrical member 11, a first beaker 12, and a first base plate 13. The first beaker 12 is fixedly arranged on the first base plate 13. The first beaker 12 can hold a liquid, and the liquid is preferably water. A scale can be set on the second beaker 22 to facilitate the user to judge the amount of liquid contained in the second beaker 22. The first cylindrical member 11 is preferably made of acrylic and is fixedly arranged in the first beaker 12.

[0025] The first cylindrical member 11 is hollow inside, and one end of the first cylindrical member 11 is provided with a hole that passes through the first beaker 12. Through this hole, one end of the first output pipe 10 is connected to the first cylindrical member 11, so that this end of the first output pipe 10 is in communication with the inside of the first cylindrical member 11. At the same time, the other end of the first output pipe 10 is connected to and in communication with the first valve 3. The other end of the first cylindrical member 11 is connected with a waterproof and breathable membrane. The setting of this waterproof and breathable membrane can prevent the liquid in the first beaker 12 from entering the first cylindrical member 11, and the air inside the first cylindrical member 11 can enter the first beaker 12 through this waterproof and breathable membrane.

[0026] In addition, a material to be tested can be placed and accommodated in the first output pipe 10, and the cross-sectional size of the material to be tested can be basically equivalent to the inner diameter of the first output pipe 10.

[0027] The control test structure 2 includes a second cylindrical member 21, a second beaker 22, and a second base plate 23. The second beaker 22 is fixedly arranged on the second base plate 23. The second beaker 22 can hold a liquid, and the liquid is preferably water. A scale can be set on the second beaker 22 to facilitate the user to judge the amount of liquid contained in the second beaker 22. The second cylindrical member 21 is preferably made of acrylic and is fixedly arranged in the second beaker 22. Moreover, the structures and dimensions of the second cylindrical member 21 and the first cylindrical member 11 should be the same, and the structures and dimensions of the second beaker 22 and the first beaker 12 should be the same.

[0028] The second cylindrical member 21 is hollow inside, and one end of the second cylindrical member 21 is provided with a hole that passes through the second beaker 22. Through this hole, one end of the second output pipe 20 is connected to the second cylindrical member 21, so that this end of the second output pipe 20 is in communication with the inside of the second cylindrical member 21. At the same time, the other end of the second output pipe 20 is connected to and in communication with the second valve 4. The other end of the second cylindrical member 21 is connected with a waterproof and breathable membrane. The setting of this waterproof and breathable membrane can prevent the liquid in the second beaker 22 from entering the second cylindrical member 21, and the air inside the second cylindrical member 21 can enter the second beaker 22 through this waterproof and breathable membrane.

[0029] A permeability testing device of the present utility model further includes a pressure gauge 30 and a third sub-pipeline 40. One end of the third sub-pipeline 40 is connected and communicated with the pipeline shared by the first sub-pipeline 8 and the second sub-pipeline 9, that is, this end of the third sub-pipeline 40 is connected and communicated with the throttle valve 5, and the other end of the third sub-pipeline 40 is connected and communicated with the pressure gauge 30, so that the pressure gauge 30 is connected to the throttle valve 5 through the third sub-pipeline 40.

[0030] A permeability testing device of the present utility model further includes a substrate 50. The first bottom plate 13 of the penetration testing structure 1, the second bottom plate 23 of the control testing structure 2, the first valve 3, the second valve 4, the throttle valve 5 and the pressure gauge 30 are all fixedly installed on the substrate 50 by bolts. Support blocks are also provided on both sides of the bottom end of the substrate 50 to facilitate the substrate 50 to be set perpendicular to the horizontal plane.

[0031] In addition, a permeability testing device of the present utility model may further include a flowmeter, and the flowmeter can be connected and communicated with the pipeline shared by the first sub-pipeline 8 and the second sub-pipeline 9 to measure the gas flow rate at this position.

[0032] When the permeability testing device of the present utility model conducts a permeability test on the material to be tested, the material to be tested can be placed into the first output pipeline 10, and the first beaker 12 and the second beaker 22 should contain the same amount of liquid.

[0033] The gas source 6 can supply air flow at the throttle valve 5 through the intake pipeline 7. The user can adjust the throttle valve 5 to determine the flow rate of the air flow. First, open the first valve 3 and close the second valve 4, so that the air flow can pass through the throttle valve 5 and then pass through the first sub-pipeline 8, the first valve 3 and the first output pipeline 10. And because the material to be tested is arranged in the first output pipeline 10, the air flow can finally enter the first cylinder 11 after penetrating through the material to be tested. The air flow entering the first cylinder 11 can pass through the waterproof and breathable film connected to the first cylinder 11 and flow into the liquid in the first beaker 12 to form bubbles. So when the bubbles just appear in the liquid of the first beaker 12, the user can read the pressure of the pressure gauge 30 at this time to obtain the test pressure of the current flow rate.

[0034] After that, close the first valve 3 and open the second valve 4, so that the air flow can pass through the throttle valve 5 and then pass through the second sub-pipeline 9, the second valve 4 and the second output pipeline 20 and then enter the second cylinder 21. The air flow entering the second cylinder 21 can pass through the waterproof and breathable film connected to the second cylinder 21 and flow into the liquid in the second beaker 22 to form bubbles. So when the bubbles just appear in the liquid of the second beaker 22, the user can read the pressure of the pressure gauge 30 at this time to obtain the control pressure of the current flow rate.

[0035] By continuously adjusting the throttle valve 5 to change the air flow rate, and continuously obtaining the test pressure and the reference pressure in the above-mentioned manner, a curve graph is obtained based on the test pressure value, the reference pressure value and the corresponding flow rate values, and the permeability of the material to be measured can be calculated therefrom.

[0036] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several variations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A permeability testing device, characterized in that, It includes a penetration test structure, a control test structure, a first valve, a second valve, a throttle valve, a gas source, an intake pipeline, a first sub-pipeline, a second sub-pipeline, a first output pipeline and a second output pipeline. The throttle valve is connected to the gas source through the intake pipeline. The first valve is connected to the throttle valve through the first sub-pipeline. The second valve is connected to the throttle valve through the second sub-pipeline. The penetration test structure is connected to the first valve through the first output pipeline. The control test structure is connected to the second valve through the second output pipeline. A material to be tested can be placed in the first output pipeline.

2. The permeability testing device according to claim 1, wherein The penetration test structure includes a first cylindrical part, a first beaker and a first bottom plate. The first beaker is arranged on the first bottom plate. A liquid can be contained in the first beaker. The first cylindrical part is arranged in the first beaker.

3. The permeability testing device according to claim 2, characterized in that, The interior of the first cylindrical part is hollow. One end of the first cylindrical part is connected to the first output pipeline. A waterproof and breathable membrane is connected to the other end of the first cylindrical part.

4. The permeability testing device according to claim 2, characterized in that, The control test structure includes a second cylindrical part, a second beaker and a second bottom plate. The second beaker is arranged on the second bottom plate. A liquid can be contained in the second beaker. The second cylindrical part is arranged in the second beaker. The structure and size of the second cylindrical part are the same as those of the first cylindrical part. The structure and size of the second beaker are the same as those of the first beaker. The liquid capacity in the second beaker is the same as that in the first beaker.

5. An apparatus for measuring permeability according to claim 4, characterized in that, The interior of the second cylindrical part is hollow. One end of the second cylindrical part is connected to the second output pipeline. A waterproof and breathable membrane is connected to the other end of the second cylindrical part.

6. The permeability testing device according to claim 1, wherein It includes a pressure gauge and a third sub-pipeline. The pressure gauge is connected to the throttle valve through the third sub-pipeline.

7. The permeability test device according to claim 1, characterized in that, It includes a substrate. The penetration test structure, the control test structure, the first valve, the second valve and the throttle valve are all installed on the substrate.

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