CN209624313U - Permeability analyzer suitable for micro- gas permeable material - Google Patents
Permeability analyzer suitable for micro- gas permeable material Download PDFInfo
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- CN209624313U CN209624313U CN201920348143.XU CN201920348143U CN209624313U CN 209624313 U CN209624313 U CN 209624313U CN 201920348143 U CN201920348143 U CN 201920348143U CN 209624313 U CN209624313 U CN 209624313U
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- gas receiver
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Abstract
The utility model discloses a kind of permeability analyzers suitable for micro- gas permeable material, gas barrier is installed inside gas receiver in body, the gas barrier will be divided into mutual independent upper gas receiver and lower gas receiver inside gas receiver, air flow sensor is installed in the center of gas barrier, the inlet, outlet end of the air flow sensor is communicated with upper gas receiver and lower gas receiver respectively；Upper gas receiver inner wall is equipped with the pressure sensor for acquiring air pressure value in upper gas receiver.When the pressure of upper gas receiver reaches and stablizes in specified value, by measurement air flow sensor by air mass flow parameter calculate the Air permenbility of sample.The utility model can make measurement result more accurate, objective, measure especially for the permeability of micro- gas permeable material, technical advantage is more prominent.
Description
Technical field
The utility model relates to a kind of material gas permeable performance test equipments, mainly for detection of the gas permeability of micro- gas permeable material
Energy.
Micro- gas permeable material refers generally to air penetrability lower than 1mm/s (L/m2.s material), such as certain functionality are knitted
Object material.
Background technique
The routine test instrument of existing cloth type material permeability is mainly orifice-plate type.In order to measure different gas permeability
Fabric and fabric expansion material, place required area disk, tested sample is placed on required area disk, then with and area disk
The sample platen of equidimension centre bore pushes down sample.Instrument has the different orifice plate component of a set of pore size, to adapt to difference
The test of permeability material, orifice plate component is between upper and lower gas receiver.When test, reach authorized pressure value in upper gas receiver
And when stablizing, the pressure difference by measuring orifice plate two sides changes, and calculates the Air permenbility of sample material, to reach measurement sample gas permeability
The purpose of energy.
This measuring mechanism test scope is wide, adapts to the permeability test of most of textile materials, higher for air penetrability
Fabric, this quasi-instrument can satisfy the requirement of permeability test accuracy rate, but material lower for air penetrability, and when measurement needs
Lesser orifice plate aperture is selected, hole plate thickness is greater than aperture at this time, and upper gas receiver reaches authorized pressure and stabilization is then highly difficult,
And it is larger by environmental influences such as temperature and humidity and air pressures when testing.In addition, the geometry at aperture edge will serious shadow
Ring the resistance coefficient of fluid.More it is difficult to, since this quasi-instrument realizes that air flowing using measurement orifice plate two sides pressure difference
Amount is smaller, and the lower time width range sensor of flow velocity is difficult to measure small pressure difference, therefore small flow status measurement is difficult to realize.Especially
It is air penetrability lower than 1mm/s (L/m2.s the quick accurate detection of the air penetrability of material) is current problem.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of permeability measurements suitable for micro- gas permeable material
Instrument obtains permeability basic data by way of measuring permeable material air quality, to overcome existing orifice-plate type material
Air permeability tester is difficult to realize the defect of small flow status measurement.
The technical solution of the utility model is as follows:
It is flat including body and the test for being fixedly mounted on body upper end suitable for the permeability analyzer of micro- gas permeable material
Platform is additionally provided with gas receiver in body, which is connected with test platform, and there is blower in lower end by piping connection；
It is characterized by: being equipped with gas barrier inside gas receiver, which will be divided into mutual independent upper gas storage inside gas receiver
Cylinder and lower gas receiver, are equipped with air flow sensor in the center of gas barrier, the inlet, outlet of the air flow sensor
End is communicated with upper gas receiver and lower gas receiver respectively；Area disk is installed, which offers with specific on test platform
Area and the air inlet communicated with upper gas receiver；Permeability analyzer further includes being mounted on gas receiver and for acquiring
The pressure sensor of air pressure value in gas receiver.
Preferably, the air flow sensor is air mass flow sensor.
Preferably, permeability analyzer further includes controller and the input connecting with controller communication and display dress
It sets；Wherein controller is connected with the motor control mechanism of pressure sensor, air flow sensor and blower respectively.
The utility model has the following positive effects:
The utility model provides the sky of permeable material in the pressure differential lower unit time using air flow sensor measurement
Throughput, the calculation basis as material gas permeable performance.Preferred mass flow sensor, principle are by measuring heating power
The mass flow for the fluid for taking away this partial heat is measured, therefore avoids the generally existing disturbing factor of existing test equipment
Influence, avoid the environmental influences such as test site temperature and humidity and pressure change and measure as a result, making to measure result more quasi-
Really, objective, it is measured especially for the permeability of micro- breathable fabric, technical advantage is more prominent.It solves air penetrability to be lower than
1mm/s(L/m2.s) the quick and precisely detection of material gas permeable performance.After the utility model, test scope is up to 0.01mm/s
(L/ m2.s)~4mm/s (L/ m2.s), and wherein 0.6mm/s (L/ m2.s)~4mm/s (L/ m2.s) range compensates for orifice plate
Unstable (difference is big, poor reproducibility, resolving power the are low) test section of formula air permeability tester, 0.01mm/s (L/ m2.s)~
0.6mm/s(L/ m2What .s) range compensated for orifice-plate type air permeability tester is unable to test section.
Detailed description of the invention
Fig. 1 is the structure and operation principle schematic diagram of the utility model.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Such as Fig. 1, the embodiments of the present invention include body 1 and the test platform 10 for being fixedly mounted on 1 upper end of body, machine
Gas receiver is provided in body 1, gas receiver upper end is mounted on test platform 10, gas receiver upper port sealing placement area disk 11,
There is blower 2 in lower end by piping connection.Gas barrier 6 is fixedly installed with inside gas receiver, the gas barrier 6 by gas receiver inner part every
For mutual independent upper gas receiver 7 and lower gas receiver 3, air flow sensor 5 is installed in the center of gas barrier 6, it should
The inlet, outlet end of air flow sensor 5 is communicated with upper gas receiver 7 and lower gas receiver 3 respectively.Air flow sensor 5 is preferred
Air mass flow sensor.
Upper 7 upper end of gas receiver sealing disposes area disk 11, offers among the area disk 11 with required area space, face
Product space forms the air inlet communicated with upper gas receiver 7.
The embodiments of the present invention further include the sample offered with the 11 air inlet equidimension centre bore of area disk
Platen 13 when test, on sample material is placed in, is then pushed down by sample platen 13.
The embodiments of the present invention further include being mounted on 7 inner wall of gas receiver for acquiring air pressure in gas receiver 7
The pressure sensor 8 of force value.
When test, sample 12 is tiled across above 11 air inlet of area disk, then by 13 center of sample platen
Hole and air inlet face are pressed on sample 12.Start blower 2, when the pressure value that pressure sensor 8 acquires is in setting range simultaneously
When stablizing, the data on flows of air flow sensor 5 is read, for calculating the permeability of sample 12.
The control system of the utility model include the controller 4 being mounted on body 1 and with 4 communication connection of controller
Input and display device 9, input and display device 9 can set as defined in pressure value and other parameters related to test.Its
Middle controller 4 is connected with the motor control mechanism of pressure sensor 8, air flow sensor 5 and blower 2 respectively.Control
Device 4 obtains air pressure in upper gas receiver 7 by pressure sensor 8, when test, when pressure is not up to or super in upper gas receiver 7
When crossing authorized pressure, the motor control mechanism output of Xiang Fengji 2 controls signal to adjust the revolving speed of blower 2, to reach regulation pressure
Power, when pressure is stablized in specified value, controller 4 records the air flow data that air flow sensor 5 obtains, by default
Algorithm calculate permeability data after be transferred in input and display device 9.
Claims (3)
1. be suitable for the permeability analyzer of micro- gas permeable material, including body (1) and it is fixedly mounted on the examination of body (1) upper end
It tests platform (10), body is additionally provided with gas receiver in (1), which is connected with test platform (10), and lower end passes through
Piping connection has blower (2)；It is characterized by: being equipped with gas barrier (6) inside gas receiver, which will be in gas receiver
Part is divided into mutual independent upper gas receiver (7) and lower gas receiver (3), is equipped with air stream in the center of gas barrier (6)
Quantity sensor (5), the inlet, outlet end of the air flow sensor (5) are communicated with upper gas receiver (7) and lower gas receiver (3) respectively；
Area disk (11) are installed on test platform (10), the area disk (11) offer with particular area and with upper gas receiver (7)
The air inlet communicated；Permeability analyzer further includes being mounted on gas receiver (7) and for acquiring sky in gas receiver (7)
The pressure sensor (8) of air pressure force value.
2. being suitable for the permeability analyzer of micro- gas permeable material as described in claim 1, it is characterised in that: the air
Flow sensor (5) is air mass flow sensor.
3. being suitable for the permeability analyzer of micro- gas permeable material as claimed in claim 1 or 2, it is characterised in that: gas permeability
Energy analyzer further includes controller (4) and input and display device (9) with controller (4) communication connection；Wherein controller
(4) it is connected respectively with the motor control mechanism of pressure sensor (8), air flow sensor (5) and blower (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348143.XU CN209624313U (en) | 2019-03-19 | 2019-03-19 | Permeability analyzer suitable for micro- gas permeable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348143.XU CN209624313U (en) | 2019-03-19 | 2019-03-19 | Permeability analyzer suitable for micro- gas permeable material |
Publications (1)
| Publication Number | Publication Date |
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| CN209624313U true CN209624313U (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920348143.XU Active CN209624313U (en) | 2019-03-19 | 2019-03-19 | Permeability analyzer suitable for micro- gas permeable material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220524A (en) * | 2020-01-19 | 2020-06-02 | 福建龙净环保股份有限公司 | Air permeability testing device and method for porous filtering material |
| CN112129678A (en) * | 2020-09-11 | 2020-12-25 | 山鹰国际控股股份公司 | Special device for measuring air permeability of dry net of paper machine and using method |
| CN112326530A (en) * | 2020-11-05 | 2021-02-05 | 江苏江化聚氨酯产品质量检测有限公司 | Detection apparatus for foam material air transmission rate |
-
2019
- 2019-03-19 CN CN201920348143.XU patent/CN209624313U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220524A (en) * | 2020-01-19 | 2020-06-02 | 福建龙净环保股份有限公司 | Air permeability testing device and method for porous filtering material |
| CN112129678A (en) * | 2020-09-11 | 2020-12-25 | 山鹰国际控股股份公司 | Special device for measuring air permeability of dry net of paper machine and using method |
| CN112129678B (en) * | 2020-09-11 | 2023-07-28 | 山鹰国际控股股份公司 | Special device for measuring air permeability of paper machine dry net and use method |
| CN112326530A (en) * | 2020-11-05 | 2021-02-05 | 江苏江化聚氨酯产品质量检测有限公司 | Detection apparatus for foam material air transmission rate |
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