CN215833219U - Air permeability detection system - Google Patents
Air permeability detection system Download PDFInfo
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- CN215833219U CN215833219U CN202121962557.5U CN202121962557U CN215833219U CN 215833219 U CN215833219 U CN 215833219U CN 202121962557 U CN202121962557 U CN 202121962557U CN 215833219 U CN215833219 U CN 215833219U
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- pipeline
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- water column
- air permeability
- detection system
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- 238000001514 detection method Methods 0.000 title claims abstract description 69
- 230000035699 permeability Effects 0.000 title claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000009423 ventilation Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 10
- 239000002131 composite material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a ventilation performance detection system, which comprises a clamp mechanism, a detection mechanism and an air inlet mechanism, wherein an air chamber is arranged in the clamp mechanism, and a flat plate to be detected is covered on the air chamber; the air inlet mechanism comprises a first pipeline, and a first valve is arranged on the first pipeline; the air inlet mechanism further comprises a second pipeline, the first pipeline is communicated with the second pipeline, and the detection mechanism is communicated with the clamp mechanism through the second pipeline; the detection mechanism is a water column meter, one end of the water column meter is connected with the other end of the water column meter through a third pipeline, the first pipeline is communicated with the third pipeline, and a second valve is arranged on the third pipeline. According to the utility model, the clamp mechanism is arranged for fixing the flat plate to be detected, the air inlet mechanism is matched for ventilating the clamp mechanism and the detection mechanism, and finally after the first valve and the second valve are closed, the detection operation of the air permeability of the flat plate to be detected is realized by reading the height difference of the liquid levels on the two sides of the water column meter, so that the air permeability detection efficiency is effectively improved.
Description
Technical Field
The utility model relates to the technical field of air permeability detection, in particular to an air permeability detection system.
Background
For a hard composite material flat plate with requirements on the air permeability, air permeability detection is a necessary item, and air permeability detection equipment in the market is various in types, different in applicable materials and limited to a certain extent, so that the air permeability detection equipment with a wide application range is particularly important.
Along with the diversification of the breathable products needing to be detected, different breathable detection methods need to be adopted by the existing products aiming at different products in the breathable detection process, and in addition, due to the fact that the measurement accuracy requirements of different products are different, a proper breathable detection method can be selected, and the improvement of the breathable detection efficiency of the products is restricted.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims to provide an air permeability detection system suitable for air permeability detection of various products, so that the air permeability detection efficiency is effectively improved.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a ventilation performance detection system comprises a clamp mechanism, a detection mechanism and an air inlet mechanism, wherein the clamp mechanism is used for fixing a flat plate to be detected, an air chamber is arranged in the clamp mechanism, and the flat plate to be detected is covered on the air chamber; the clamp mechanism and the detection mechanism are respectively connected with an air inlet mechanism, the air inlet mechanism comprises a first pipeline, and a first valve is arranged on the first pipeline; the air inlet mechanism further comprises a second pipeline, the first pipeline is communicated with the second pipeline, and the detection mechanism is communicated with the clamp mechanism through the second pipeline; detection mechanism includes U type water column table, through the third pipe connection between water column table one end and the water column table other end, first pipeline and third pipeline intercommunication set up, be provided with the second valve on the third pipeline.
In one embodiment, one end of the water column meter is connected with a fourth pipeline, and the fourth pipeline is provided with a third valve.
In one embodiment, the fixture mechanism comprises a base body, an upper cover plate is arranged on the base body, the upper cover plate is fixedly connected with the base body through a fastener, the air chamber is arranged in the base body, and the flat plate to be detected is arranged between the upper cover plate and the base body.
In one embodiment, the seat body is provided with a sealing gasket on the periphery of the air chamber.
In one embodiment, the fastener is a screw.
In one embodiment, the air inlet mechanism further comprises a pressure gauge, and the pressure gauge is arranged at one end of the first pipeline.
In one embodiment, a fixing seat is arranged on one side of the clamp mechanism, the fixing seat is arranged on one side of the seat body, and the second pipeline and the water column meter are respectively arranged in the fixing seat.
In one embodiment, the fixing base is made of acrylic material.
In one embodiment, the third pipeline is arranged on the fixed seat.
In one embodiment, the fourth pipeline is arranged on the fixed seat.
In summary, in the air permeability detection system of the utility model, the clamp mechanism is arranged for fixing the flat plate to be detected, the air inlet mechanism is matched for ventilating the clamp mechanism and the detection mechanism, and finally, after the first valve and the second valve are closed, the air permeability detection operation of the flat plate to be detected is realized by reading the height difference of the liquid levels on the two sides of the water column meter, so that the air permeability detection efficiency is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of an air permeability detection system according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the air permeability detection system of the present invention includes a fixture mechanism 100, a detection mechanism 200, and an air inlet mechanism 300, wherein the fixture mechanism 100 is used for fixing a flat plate 400 to be detected, an air chamber (not shown) is disposed in the fixture mechanism 100, and the flat plate 400 to be detected is covered on the air chamber, so that air in the air chamber can only penetrate into an external environment through the flat plate 400 to be detected, and further, detection of the air permeability of the flat plate 400 to be detected is realized through variation of air pressure in the air chamber; specifically, the air chamber is provided with an air outlet, the flat plate 400 to be detected is covered at the air outlet, so that the gas in the air chamber conveniently overflows from the flat plate 400 to be detected through the air outlet, and the detection of the air permeability of the flat plate 400 to be detected is realized through the change of the air pressure in the air chamber.
The fixture mechanism 100 and the detection mechanism 200 are respectively connected with the air inlet mechanism 300, the air inlet mechanism 300 comprises a first pipeline 310, an external air supply device supplies air to the fixture mechanism 100 and the detection mechanism 200 through the first pipeline 310, a first valve 320 is arranged on the first pipeline 310, and the first valve 320 is used for closing the first pipeline 310 so as to ensure that when the air inlet mechanism 300 stops supplying air, air in the external environment cannot enter the fixture mechanism 100 and the detection mechanism 200 to influence the detection of the air permeability of the flat plate 400 to be detected; in this embodiment, the external air supply device may be an air pump.
In one embodiment, a fourth pipe 240 is connected to one end of the water column meter 210, the fourth pipe 240 is provided with a third valve 250, and the working fluid is injected into the water column meter 210 through the fourth pipe 240, wherein the working fluid may be mercury or colored pure water, and the injection amount of the working fluid is preferably 1/2 on the scale of the water column meter 210; the third valve 250 is used for closing the fourth pipeline 240, so that the water column meter 210 is isolated from the external environment, and the gas in the external environment is prevented from entering the water column meter 210 to affect the detection of the gas permeability of the flat plate 400 to be detected.
In one embodiment, the clamping mechanism 100 includes a base 110, an upper cover plate 120 is disposed on the base 110, and the upper cover plate 120 is connected and fixed to the base 110 through a fastener (not shown), where the fastener is a screw; the air chamber is arranged in the base body 110, the flat plate 400 to be detected is arranged between the upper cover plate 120 and the base body 110, the flat plate 400 to be detected is stably arranged on the air chamber through the connection between the upper cover plate 120 and the base body 110, and the sealing performance of the air chamber is ensured, so that the air in the air chamber can only be ventilated through the flat plate 400 to be detected, and the accuracy of the measurement of the ventilation performance of the flat plate 400 to be detected is ensured; the upper cover plate 120 is provided with the vent holes 121, and after the upper cover plate and the base body 110 fix the flat plate 400 to be detected, the gas passing through the flat plate 400 to be detected from the gas chamber can be released to the external environment through the vent holes 121, so that the influence of the upper cover plate 120 on the detection of the permeability of the flat plate 400 to be detected is also reduced.
In this embodiment, the upper cover plate 120 of the clamping mechanism 100 may be replaced with other fixing structures to ensure that the flat plate 400 to be detected can be stably covered on the air chamber, which is a common structure in the art and need not be described herein.
In one embodiment, the seat 110 is provided with a sealing gasket around the air chamber to improve the sealing performance between the flat plate 400 to be detected and the air chamber, and improve the accuracy of measuring the air permeability of the flat plate 400 to be detected.
In one embodiment, the gas inlet mechanism 300 further includes a pressure gauge 340, the pressure gauge 340 is disposed at one end of the first pipeline 310, when an external gas supply device supplies gas through the first pipeline 310, at this time, the first valve 320 and the second valve 230 are in an open state, the gas enters the clamp mechanism 100 and the detection mechanism 200, the pressure gauge 340 is used for monitoring a gas pressure value entering the clamp mechanism 100 and the detection mechanism 200, and it is ensured that the gas pressure inside the clamp mechanism 100 and the detection mechanism 200 is at a preset value, so as to facilitate detection of the gas permeability of the subsequent to-be-detected flat plate 400; in this embodiment, the pressure of the gas provided by the external gas supply device can be set to 0.1Mpa according to the requirement, and then the preset value is 0.2Mpa, and in other embodiments, the preset value can also be set to 0.3Mpa, 0.4Mpa, and the like.
In one embodiment, fixture mechanism 100 one side is provided with fixing base 500, fixing base 500 is provided in base 110 one side, second pipeline 330 and water column table 210 set up respectively in fixing base 500, third pipeline 220 sets up on fixing base 500 to improve the steadiness that the both ends of water column table 210 communicate, fourth pipeline 240 sets up on fixing base 500, thereby conveniently pours into the operating fluid into for water column table 210.
In one embodiment, the fixing base 500 is made of a transparent acrylic material so as to conveniently read the liquid level height of the working fluid in the water column meter 210, and further, the detection operation of the air permeability of the flat plate 400 to be detected is realized by judging the liquid level height difference of the working fluid on the two sides of the water column meter 210.
In one embodiment, alternatively, the fixing base 500 may also be made of other materials to ensure that the reading operation of the liquid level heights of the working fluids on the two sides of the water column meter 210 can be achieved, for example, a through hole is formed in the side portion of the fixing base 500, the water column meter 210 is placed in the through hole, and the reading operation of the liquid level heights of the working fluids on the two sides of the water column meter 210 is achieved through the through hole.
When the utility model is used specifically, the flat plate 400 to be detected is placed in the fixture mechanism 100, and the flat plate to be detected is placed at the air outlet of the air chamber through the fixing action of the upper cover plate 120 and the seat body 110; first, the first valve 320, the second valve 230, and the third valve 250 are in an open state, and the working fluid is injected into the water column meter 210, preferably, the liquid level of the working fluid is not higher than 1/2 on the scale of the water column meter 210, and at this time, the liquid levels on the two sides of the water column meter 210 are leveled; then, the third valve 250 is closed, the first pipe 310 is connected to an external gas supply device, the external gas supply device performs gas supply operation, and gas enters the gas chamber of the seat body 110 and the two ends of the water column meter 210 through the first pipe 310, the second pipe 330, and the third pipe 220, respectively, at this time, the liquid level heights at the two sides of the water column meter 210 are still in a level state; the pressure gauge 340 monitors the pressure of the gas supplied by the external gas supply device, and the external gas supply device stops supplying gas after the pressure in the gas chamber and the water column gauge 210 is in a preset value for a certain time, wherein the time is 3-5 min in the embodiment; then, the first valve 320 and the second valve 230 are closed to isolate the air chamber from the external environment and ensure the independence of the air pressures at the two ends of the water column meter 210, at this time, one end of the water column meter 210 keeps a preset value unchanged, the other end of the water column meter 210 is communicated with the air chamber, the flat plate 400 to be detected is arranged at the air outlet of the air chamber, and due to the difference of the air pressures inside and outside the air chamber, the air in the air chamber enters the external ring through the flat plate 400 to be detected after a period of timeThe air pressure in the air chamber is reduced in the environment, so that the liquid level heights of the two sides of the water column meter 210 are different, the detection operation of the air permeability of the flat plate 400 to be detected is realized by reading the height difference of the liquid levels of the two sides of the water column meter 210, the air permeability detection efficiency is effectively improved, and meanwhile, the air permeability of the rigid composite flat plates with different sizes is conveniently detected; wherein, the air permeability of the panel to be detected is determined by an air permeability coefficient K ═ Delta Q/(S ═ Delta t), Delta Q is the cumulative amount of the permeating gas and the unit is cm3In the present embodiment, the value can be obtained by Δ Q ═ pi r2Calculating delta h, wherein r is the radius of the section at one end of the water column meter 210, and delta h is the height difference of liquid levels at two sides of the water column meter 210; s is the effective ventilation area in cm2In this embodiment, S is the area of the air outlet; Δ t is the test time in seconds.
In summary, in the air permeability detection system of the present invention, the clamp mechanism 100 is arranged to fix the flat plate 400 to be detected, the air inlet mechanism 300 is used to ventilate the clamp mechanism 100 and the detection mechanism 200, and finally, after the first valve 320 and the second valve 230 are closed, the air permeability detection operation of the flat plate 400 to be detected is realized by reading the height difference between the liquid levels on the two sides of the water column meter 210, so as to effectively improve the air permeability detection efficiency.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An air permeability detection system, characterized in that: the device comprises a clamp mechanism, a detection mechanism and an air inlet mechanism, wherein the clamp mechanism is used for fixing a flat plate to be detected, an air chamber is arranged in the clamp mechanism, and the flat plate to be detected is covered on the air chamber; the clamp mechanism and the detection mechanism are respectively connected with an air inlet mechanism, the air inlet mechanism comprises a first pipeline, and a first valve is arranged on the first pipeline; the air inlet mechanism further comprises a second pipeline, the first pipeline is communicated with the second pipeline, and the detection mechanism is communicated with the clamp mechanism through the second pipeline; detection mechanism includes U type water column table, through the third pipe connection between water column table one end and the water column table other end, first pipeline and third pipeline intercommunication set up, be provided with the second valve on the third pipeline.
2. The air permeability detection system of claim 1, wherein: wherein one end of the water column meter is connected with a fourth pipeline, and the fourth pipeline is provided with a third valve.
3. The air permeability detection system according to claim 1 or 2, wherein: the fixture mechanism comprises a base body, an upper cover plate is arranged on the base body and fixedly connected with the base body through a fastener, an air chamber is arranged in the base body, and a flat plate to be detected is arranged between the upper cover plate and the base body.
4. The air permeability detection system of claim 3, wherein: and the seat body is provided with a sealing gasket on the periphery of the air chamber.
5. The air permeability detection system of claim 3, wherein: the fastener is a screw piece.
6. The air permeability detection system according to claim 1 or 2, wherein: the air inlet mechanism further comprises a pressure gauge, and the pressure gauge is arranged at one end of the first pipeline.
7. The air permeability detection system of claim 2, wherein: the fixture comprises a fixture body, a first pipeline and a water column meter, wherein the fixture body is arranged on the side of the fixture body, and the first pipeline and the water column meter are arranged in the fixture body respectively.
8. The air permeability detection system of claim 7, wherein: the fixing seat is made of acrylic materials.
9. The air permeability detection system of claim 7, wherein: the third pipeline is arranged on the fixed seat.
10. The air permeability detection system of claim 7, wherein: the fourth pipeline is arranged on the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121962557.5U CN215833219U (en) | 2021-08-20 | 2021-08-20 | Air permeability detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121962557.5U CN215833219U (en) | 2021-08-20 | 2021-08-20 | Air permeability detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215833219U true CN215833219U (en) | 2022-02-15 |
Family
ID=80195792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121962557.5U Active CN215833219U (en) | 2021-08-20 | 2021-08-20 | Air permeability detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215833219U (en) |
-
2021
- 2021-08-20 CN CN202121962557.5U patent/CN215833219U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240409 Address after: 410000 plant No. 247, Linyu Road, high tech Development Zone, Changsha City, Hunan Province Patentee after: Hunan gengchi New Energy Technology Co.,Ltd. Country or region after: China Address before: 201800 room j2516, building 6, No. 1288, Yecheng Road, Jiading District, Shanghai Patentee before: Shanghai Yishang New Energy Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |