CN207472733U - A kind of permeable compression testing device of porous material - Google Patents
A kind of permeable compression testing device of porous material Download PDFInfo
- Publication number
- CN207472733U CN207472733U CN201721708213.5U CN201721708213U CN207472733U CN 207472733 U CN207472733 U CN 207472733U CN 201721708213 U CN201721708213 U CN 201721708213U CN 207472733 U CN207472733 U CN 207472733U
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- CN
- China
- Prior art keywords
- hole
- porous material
- liquid chamber
- gas
- annular sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000011148 porous material Substances 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 title claims abstract description 7
- 238000007906 compression Methods 0.000 title claims abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 16
- 238000009530 blood pressure measurement Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000002572 peristaltic effect Effects 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 23
- 239000012530 fluid Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of permeable compression testing device of porous material, including gas injection apparatus, gas buffer chamber, porous material fixture and pressure gauge；Gas injection apparatus realizes being slowly increased for test pressure with gas buffer chamber, improves the accuracy of test.
Description
Technical field：
The utility model is related to a kind of permeable pressure measuring devices.
Background technology：
Porous gas diffusive electrode is widely used in fuel cell, metal-air battery.Porous electrode was at work both
Gas (such as oxygen, hydrogen) is allowed to penetrate, prevents solution leakage again.The permeable pressure of porous material is that reflection material is prevented
The only important parameter of solution leakage when measuring permeable pressure, needs that porous material side is made to immerse in water or electrolyte, and gradually
Increase fluid pressure, the liquid pressure value when drop is oozed out by porous material opposite side is the permeable pressure of porous material.
Utility model content
In order to accurately measure the permeable pressure of porous material, need slowly to increase fluid pressure, the utility model patent proposes
A kind of permeable pressure measuring device is pressurized, and pass through gas by peristaltic pump or other devices that can be slowly injected into gas to liquid
Body cushion chamber reduces rate of pressure rise.
The utility model solves the above problems by the following technical programs, specific as follows：
A kind of permeable compression testing device of porous material, including gas injection apparatus, gas buffer chamber, porous material fixture and
Device for pressure measurement；
Porous material fixture is to include closed liquid chamber and hollow ring tablet, and through-hole is equipped in the upper surface of liquid chamber
A, hollow ring tablet is placed in above through-hole A, and through-hole A is in the hollow region of hollow ring tablet；On the outside of through-hole A
Annular sealing gaskets is placed in liquid chamber upper surface, and through-hole A is in the hollow region that annular sealing gaskets is surrounded；It is to be measured more
Porous materials are placed between hollow ring tablet and annular sealing gaskets, and the lower surface edge of porous material to be measured and annular are close
Liquid chamber upper surface on the outside of gasket, annular sealing gaskets and through-hole A is amplexiformed, the upper surface edge of porous material to be measured
It is amplexiformed with the hollow ring tablet lower face on the outside of hollow region；
In applying the thrust to liquid chamber upper surface on hollow ring tablet, the lower surface surrounding of porous material to be measured can be made
Edge is sealed with the liquid chamber upper surface on the outside of annular sealing gaskets, annular sealing gaskets and through-hole A；
The lower part of gas buffer chamber is connected with liquid chamber lower part by pipeline；Pass through pipeline in the top of gas buffer chamber
It is connected with the gas outlet of gas injection apparatus；Device for pressure measurement is equipped in gas buffer chamber top.
Peristaltic pump, diaphragm pump or gear pump may be used in the test device, the gas injection apparatus.
The test device, the gas buffer chamber act as further reducing gas pressure increase rate, carry
High permeable pressure measurement accuracy.
The test device is evenly equipped with the through-hole of 3 or more in hollow ring tablet edge, corresponding in liquid
Offer the threaded hole of 3 or more on chamber upper wall face, the screw rod of 3 or more is each passed through after through-hole and corresponding threaded hole spiral shell
It closes.
The test device is equipped with transparent windows in the lower face of liquid chamber；The effect of the observation window is to inject
After water or electrolyte, whether observation porous electrode surface has bubble.
The test device is equipped with through-hole B in the lower face of liquid chamber, transparent material plate, transparent material is equipped at through-hole B
The edge airtight connection of the upper surface of flitch and through-hole B, lower face or internal face forms transparent windows.
The permeable compression testing device of porous material described in this patent, can significantly reduce liquid rate of pressurization, improve porous material
Expect the measurement accuracy of permeable pressure.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing to being used needed for embodiment below
Make brief introduction.Obviously, it is only some embodiments of the utility model that middle attached drawing, which is described below, for the common of this field
Technical staff without creative efforts, can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 be the permeable compression testing device schematic diagram of porous material, including gas injection apparatus (1), gas buffer chamber (2),
Device for pressure measurement (3), porous material fixture (4), wherein porous material fixture (4) include hollow ring tablet (5), bolt
(6), porous material (7), annular sealing gaskets (8), liquid chamber (9), observation window (10).
Specific embodiment
It is clearly and completely described with reference to the technical scheme in the embodiment of the utility model, it is clear that described
Embodiment is only the part of the embodiment of the utility model, instead of all the embodiments.Implementation based on the utility model
Example, those of ordinary skill in the art's all other embodiments obtained under the premise of no creative work belong to this
The protection domain of utility model.
Embodiment
As shown in Figure 1, after porous material is cut into a certain size, material is fixed using porous material fixture, it is porous
There is annular sealing gaskets to prevent fluid seepage between material and fixture.Water is filled in fixture fluid chamber, and it is true to pass through observation window
Recognize porous material surface bubble-free.Gas buffer chamber surplus air cavity volume is about 200mL, connects gas piping, uses wriggling
Pump is as gas injection apparatus, and wriggling revolution speed 20rpm, Pressure rise rates are about 0.1kPa/min at this time.Pass through drop
Porous material is observed by observation ward, when first Liquid Penetrant comes out, reads pressure reading immediately, as the porous material is saturating
Hydraulic pressure.
Comparative example 1
After porous material is cut into a certain size, material is fixed using porous material fixture, porous material and fixture
Between there is annular sealing gaskets to prevent fluid seepage.Water is filled in fixture fluid chamber, and passes through observation window and confirms porous material
Surface bubble-free.
Gas buffer cavity volume is reduced to residue about 10mL air chambers, is connected gas piping, will be used peristaltic pump as gas
Body injection device, wriggling revolution speed 20rpm, Pressure rise rates are about 20kPa/min at this time.Rate of pressure rise mistake at this time
Soon, it is not easy to observe Liquid Penetrant.
Comparative example 2
After porous material is cut into a certain size, material is fixed using porous material fixture, porous material and fixture
Between there is annular sealing gaskets to prevent fluid seepage.Water is filled in fixture fluid chamber, and passes through observation window and confirms porous material
Surface bubble-free.Gas piping is connected, using centrifugal liquid pump as supercharging device, Pressure rise rates are too fast at this time, existing
Equipment can not accurately measure rate of pressure rise, can not also prepare to measure the permeable pressure of porous material.
Claims (6)
1. a kind of permeable compression testing device of porous material, it is characterised in that：Including gas injection apparatus, gas buffer chamber, porous
Material fixture and device for pressure measurement；
Porous material fixture is to include closed liquid chamber and hollow ring tablet, and through-hole A is equipped in the upper surface of liquid chamber, in
Empty ring plate is placed in above through-hole A, and through-hole A is in the hollow region of hollow ring tablet；Liquid on the outside of through-hole A
Annular sealing gaskets is placed in room upper surface, and through-hole A is in the hollow region that annular sealing gaskets is surrounded；Porous material to be measured
Material is placed between hollow ring tablet and annular sealing gaskets, the lower surface edge of porous material to be measured and Gask-O-Seal
Liquid chamber upper surface on the outside of piece, annular sealing gaskets and through-hole A is amplexiformed, and the upper surface edge of porous material to be measured is in
It amplexiforms hollow ring tablet lower face on the outside of empty region；
In applying the thrust to liquid chamber upper surface on hollow ring tablet, the lower surface edge of porous material to be measured can be made
It is sealed with the liquid chamber upper surface on the outside of annular sealing gaskets, annular sealing gaskets and through-hole A；
The lower part of gas buffer chamber is connected with liquid chamber lower part by pipeline；Pass through pipeline and gas in the top of gas buffer chamber
The gas outlet of body injection device is connected；Device for pressure measurement is equipped in gas buffer chamber top.
2. device as described in claim 1, it is characterised in that：The gas injection apparatus may be used peristaltic pump, diaphragm pump or
Gear pump.
3. device as described in claim 1, it is characterised in that：The acting as of the gas buffer chamber further reduces gas pressure
Increase rate, improve permeable pressure measurement accuracy.
4. device as described in claim 1, it is characterised in that：3 or more are evenly equipped in hollow ring tablet edge
Through-hole, it is corresponding in the threaded hole that 3 or more are offered on liquid chamber upper wall surface, after the screw rod of 3 or more is each passed through through-hole
It is screwed togather with corresponding threaded hole.
5. device as described in claim 1, it is characterised in that：Transparent windows are equipped in the lower face of liquid chamber；The observation
The effect of window is after injection water or electrolyte, and whether observation porous electrode surface has bubble.
6. device as claimed in claim 5, it is characterised in that：Through-hole B is equipped in the lower face of liquid chamber, is equipped at through-hole B
Transparent material plate, the edge airtight connection of the upper surface of transparent material plate and through-hole B, lower face or internal face, is formed saturating
Bright observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721708213.5U CN207472733U (en) | 2017-12-11 | 2017-12-11 | A kind of permeable compression testing device of porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721708213.5U CN207472733U (en) | 2017-12-11 | 2017-12-11 | A kind of permeable compression testing device of porous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472733U true CN207472733U (en) | 2018-06-08 |
Family
ID=62257957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721708213.5U Withdrawn - After Issue CN207472733U (en) | 2017-12-11 | 2017-12-11 | A kind of permeable compression testing device of porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207472733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900612A (en) * | 2017-12-11 | 2019-06-18 | 中国科学院大连化学物理研究所 | A kind of permeable compression testing device of porous material |
-
2017
- 2017-12-11 CN CN201721708213.5U patent/CN207472733U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900612A (en) * | 2017-12-11 | 2019-06-18 | 中国科学院大连化学物理研究所 | A kind of permeable compression testing device of porous material |
| CN109900612B (en) * | 2017-12-11 | 2023-12-15 | 中国科学院大连化学物理研究所 | Porous material water permeability pressure testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180608 Effective date of abandoning: 20231215 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180608 Effective date of abandoning: 20231215 |