CN209264513U - A kind of gas permeability tester - Google Patents
A kind of gas permeability tester Download PDFInfo
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- CN209264513U CN209264513U CN201821545278.7U CN201821545278U CN209264513U CN 209264513 U CN209264513 U CN 209264513U CN 201821545278 U CN201821545278 U CN 201821545278U CN 209264513 U CN209264513 U CN 209264513U
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- ball valve
- gas
- surge tank
- membrane module
- permeability tester
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Abstract
The utility model discloses a kind of gas permeability tester, which includes computer, data acquisition module, gas cylinder, surge tank, pressure transmitter, vacuum meter, membrane module, ball valve, temperature-controlled box stainless steel tubing and vacuum pump.Gas cylinder (3), ball valve 1(5), surge tank 1(4) and ball valve 2(7) be sequentially connected, ball valve 2(7) outlet be connected with membrane module (10) air inlet；Membrane module (10) gas outlet and vacuum meter (11), surge tank 2(12), ball valve 5(13) connect；Ball valve 2(7) and membrane module (10) between be equipped with ball valve 3(8)；Ball valve 3(8) and ball valve 5(13) between be equipped with ball valve 4(9) and vacuum pump (11).Pressure transmitter (6) and vacuum meter (11) are connect by data acquisition module with computer (1).The utility model is suitable for one-component or multicomponent gas permeance property is evaluated, easy to operate, and measurement is accurate.
Description
Technical field
The utility model relates to a kind of gas permeability testers, and in particular to a kind of for investigating gas separation membrane stalling characteristic
Tester.
Background technique
Membrane separation technique is to adapt to a high-tech of contemporary NPD projects development, is acknowledged as at the end of the 20th century into 21 century
One of the high-tech of phase most development prospect.UF membrane using it is natural or manually prepare, with selective penetrated property can film
Bi-component or multi-component liquid or gas are separated, are classified, are purified or are enriched with.
Selective gas separation film used can substantially be divided into two kinds of Porous and non-porous matter (or homogeneous), they are
It is prepared by inorganic matter or organic polymer.The basic principle of UF membrane gas is that film is different to the seepage velocity of gas with various, by
This realizes the concentration and enrichment to certain gas.Paul proposes that gas abides by " dissolution-diffusion " model through the process of homogeneous membrane,
I.e. gas molecule is adsorbed to film surface first and dissolves, and then spreads in film by concentration gradient, finally from the another of film
Side desorbs.
It is tested at room temperature especially under vacuum condition in the system weight of sealing, pressure is become by environment temperature
Change is affected, still further aspect, and under condition of different temperatures, the seepage velocity of gas is also different.Patent CN105466831 is announced
A kind of measuring gas permebility device calculates permeability by pressure difference before and after record infiltration side test, but the patent is ignored
The influence that temperature permeates gas.
Summary of the invention
The purpose of the utility model is to overcome deficiency of prior art during UF membrane gas test, solve it is extraneous because
Influence of the element to test result provides a kind of more structurally sound test platform.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of gas permeability tester, which includes computer, data acquisition module, gas cylinder, surge tank, pressure transmitter, true
Empty meter, membrane module, ball valve, temperature-controlled box stainless steel tubing and vacuum pump.The gas cylinder (3), the ball valve 1(5), the buffering
Tank 1(4) and the ball valve 2(7) be sequentially connected, the ball valve 2(7) outlet be connected with the membrane module (10) air inlet；Institute
State membrane module (10) gas outlet and the vacuum meter (11), the surge tank 2(12), the ball valve 5(13) connect；The ball valve
2(7) respectively with the membrane module and the ball valve 3(8) one end connect；The ball valve 3(8) other end is respectively at the ball valve 5
(13), the ball valve 4(9) and the vacuum pump (14) connection, the pressure transmitter (6) and the vacuum meter (11) pass through institute
Data acquisition module is stated to connect with the computer (1).
Gas is one-component gas or gaseous mixture in the gas cylinder (3).
Pressure transmitter (6) range is -0.2-1 MPa.
The range of the vacuum meter (11) is 0-100 Torr.
The volume of the surge tank 1 (4) is 0.5-2 L；The volume of the surge tank 2 (12) is 0.2-1 L.
It is 10-10125 Pa that the vacuum pump (14), which vacuumizes range,.
25-70 DEG C of temperature control range of the temperature-controlled box (15).
Beneficial effect
Gas permeability tester provided by the utility model, it is easy to operate, it can satisfy under condition of different temperatures to membrane material gas
The research of body permeance property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gas permeability tester；
Wherein, 1. computer；2. data acquisition module；3. gas cylinder；4. surge tank 1；5. ball valve 1；6. pressure transmitter；7. ball
Valve 2；8. ball valve 3；9. ball valve 4；10. membrane module；11. vacuum meter；12. surge tank 2；13. ball valve 5；14. vacuum pump；15. temperature control
Case.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.The protection scope of the utility model not with
Specific embodiment is limited, but is defined in the claims.
Case study on implementation 1
1. the instrument of the utility model includes computer, data acquisition module, gas cylinder, surge tank, pressure change referring to figure one
Send device, vacuum meter, membrane module, ball valve, temperature-controlled box stainless steel tubing and vacuum pump.The gas cylinder (3), the ball valve 1(5),
The surge tank 1(4) and the ball valve 2(7) be sequentially connected, the ball valve 2(7) outlet and the membrane module (10) air inlet
It is connected；Membrane module (10) gas outlet and the vacuum meter (11), the surge tank 2(12), the ball valve 5(13) connect；
The ball valve 2(7) and the membrane module between be equipped with the ball valve 3(8)；The ball valve 3(8) and the ball valve 5(13) between
Equipped with the ball valve 4(9) and the vacuum pump (14), the pressure transmitter (6) and the vacuum meter (11) pass through the number
It is connect according to acquisition module with the computer (1).
2. it is 50 DEG C that temperature-controlled box (15) temperature, which is arranged, surge tank 1 (4) volume is 2 L, and surge tank 2 (12) volume is 1L,
Gaseous mixture is O in gas cylinder (3)2。
3. high-polymer membrane is fitted into membrane module (10), when temperature-controlled box (15) interior temperature reaches 40 DEG C, ball valve 5 is opened
(13) and start vacuum pump (14), per-meate side vacuumized, ball valve 1(5), ball valve 2(7), ball valve 3(8) and ball valve 4(9)
Still remain off；Open ball valve 2(7 after waiting 2s), ball valve 3(8), while being vacuumized to for gas side and per-meate side；When
When vacuum meter (11) display is less than 1 Pa, ball valve 3 (8) and ball valve 5 (13) are closed, and close vacuum pump (14)；Open ball valve 1
(5) it is inflated to for gas side, closes ball valve 1 (5) when pressure transmitter (6) show specified pressure value, then turn on ball valve 2 (7)；
Computer (1) automatic recording vacuum meter (11) registration changes with time value.Finally measuring infiltration rate is 1.7*10-3 m3m-2s- 1MPa-1
Case study on implementation 2
1. using gas permeability tester described in embodiment 1, wherein the gas in gas cylinder (3) is CO2Single-component gas, control
Incubator (15) temperature is set as 40 DEG C.
2. finally measuring infiltration rate is 1.3*10-3 m3m-2s-1MPa-1。
Case study on implementation 3
1. using gas permeability tester described in embodiment 1, wherein the gas in gas cylinder is CO2And N2Gaseous mixture molar ratio is
1:1, temperature-controlled box (15) temperature are set as 65 DEG C, and surge tank 1 (4) volume is 1 L, 0.5 L of surge tank 2 (12) volume.
2. finally measuring per-meate side CO2And N2Molar ratio is 8:1, gas permeation rate 2.4*10-3 m3m-2s-1MPa-1。
Claims (7)
1. a kind of gas permeability tester, it is characterised in that: the instrument includes computer, data acquisition module, gas cylinder, surge tank, pressure
Transmitter, vacuum meter, membrane module, ball valve, temperature-controlled box stainless steel tubing and vacuum pump, the gas cylinder (3), the ball valve 1
(5), the surge tank 1(4) and the ball valve 2(7) be sequentially connected, the ball valve 2(7) outlet and the membrane module (10) into
Port is connected；Membrane module (10) gas outlet and the vacuum meter (11), the surge tank 2(12), the ball valve 5(13) even
It connects；The ball valve 2(7) respectively with the membrane module and the ball valve 3(8) one end connect；The ball valve 3(8) other end difference
It is connect with the ball valve 5(13), the ball valve 4(9) and the vacuum pump (14), the pressure transmitter (6) and the vacuum
Meter (11) is connect by the data acquisition module with the computer (1).
2. a kind of gas permeability tester according to claim 1, it is characterised in that: gas is one-component in the gas cylinder (3)
Gas or gaseous mixture.
3. a kind of gas permeability tester according to claim 1, it is characterised in that: pressure transmitter (6) range be-
0.2-1 MPa。
4. a kind of gas permeability tester according to claim 1, it is characterised in that: the range of the vacuum meter (11) is 0-
100 Torr。
5. a kind of gas permeability tester according to claim 1, it is characterised in that: the surge tank 1(4) volume be 0.5-
2 L；The surge tank 2(12) volume be 0.2-1 L.
6. a kind of gas permeability tester according to claim 1, it is characterised in that: the vacuum pump (14) vacuumizes range and is
0.5-10125 Pa。
7. a kind of gas permeability tester according to claim 1, it is characterised in that: temperature-controlled box (15) the temperature control range 25-
70 ℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545278.7U CN209264513U (en) | 2018-09-21 | 2018-09-21 | A kind of gas permeability tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545278.7U CN209264513U (en) | 2018-09-21 | 2018-09-21 | A kind of gas permeability tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209264513U true CN209264513U (en) | 2019-08-16 |
Family
ID=67553111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821545278.7U Active CN209264513U (en) | 2018-09-21 | 2018-09-21 | A kind of gas permeability tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209264513U (en) |
-
2018
- 2018-09-21 CN CN201821545278.7U patent/CN209264513U/en active Active
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