CN107796746A - A kind of material permeability coefficient detection means - Google Patents
A kind of material permeability coefficient detection means Download PDFInfo
- Publication number
- CN107796746A CN107796746A CN201711316035.6A CN201711316035A CN107796746A CN 107796746 A CN107796746 A CN 107796746A CN 201711316035 A CN201711316035 A CN 201711316035A CN 107796746 A CN107796746 A CN 107796746A
- Authority
- CN
- China
- Prior art keywords
- chassis
- cover plate
- gas pipeline
- detection means
- permeability coefficient
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Abstract
The invention provides a kind of material permeability coefficient detection means, including：Chassis, detected materials, cover plate, first gas pipeline, vacuum drawn equipment and second gas pipeline, vacuum drawn equipment connects one end of second gas pipeline, the other end connecting base plate side of second gas pipeline, detected materials are set on chassis, cover plate is set above detected materials, first gas pipeline is connected on cover plate；Vent line is set in chassis, and side is provided with venthole, for circulated gases；Detected materials are hollow cylinders, and both ends are respectively equipped with chassis and cover plate, form closed cavity；Cover plate is provided with passage, for circulated gases and connects first gas pipeline；Vacuum drawn equipment, for carrying out vacuum pumping to closed cavity；Second gas pipeline, for circulated gases and detection means air pressure inside.The invention enables material infiltration coefficient detection it is more simple and easy to do, it is as a result more accurate.
Description
Technical field
The present invention relates to material property extracting field, more particularly to a kind of material permeability coefficient detection means.
Background technology
The infiltration coefficient detection of material is different with the detection of soil permeability coefficient, common soil permeability coefficient detection
Method has constant head test method and varying head test method(s), it can be seen that, using water penetration method when detecting the infiltration coefficient of soil.
And the detection of the infiltration coefficient for material, it is also necessary in view of the seal of material for gaseous, therefore, detect the infiltration of material
During coefficient, it is also necessary to detect its gas permeability coefficient.
Due to the function admirable of graphite material, therefore, obtained in fields such as metallurgical, machinery, electric, chemical industry, weaving and national defence
Extensive use is arrived.Native graphite also has a kind of special flexible and elastic, thus still preferable encapsulant.Graphite has
There is good chemical stability, by the graphite of special processing, have the characteristics that corrosion-resistant, thermal conductivity is good and permeability is low, just
It is largely used to make heat exchanger, reactive tank, condensed device, combustion tower, absorption tower, cooler, heater, filter, pumping unit.
It is widely used in the fields such as petrochemical industry, hydrometallurgy, soda acid production, synthetic fibers, papermaking, substantial amounts of metal material can be saved
Material.
Common graphite raw material, intermolecular distance is larger, usually whole-permeable, and the graphite material detected in the present invention refers to
The graphite material impregnated by resin.In order to ensure effect during graphite material application, such as：When making reactive tank, if poisonous
Gas or liquid, if can guarantee that toxic gas or liquid are not revealed, is impermeable, now just need the infiltration system to graphite material
Number measures.The present invention provides a kind of material permeability coefficient detection means, by measure before and after certain time material with
The draught head for the closed cavity that device is formed, to detect the infiltration coefficient of graphite material.This device to permeate graphite material
The detection of coefficient becomes more easy, easy to operation.
The content of the invention
The problem of the technical problem to be solved in the present invention is detection graphite material infiltration coefficient.
The present invention is specifically to be realized with following technical scheme：
A kind of material permeability coefficient detection means, described device include：Chassis, detected materials, cover plate, first gas pipe
Road, vacuum drawn equipment and second gas pipeline, the vacuum drawn equipment connects one end of the second gas pipeline, described
The other end of second gas pipeline connects the chassis side, and the detected materials, the detected materials are set on the chassis
Top sets the cover plate, and the first gas pipeline is connected on the cover plate；
Specifically, vent line is set in the chassis, and side is provided with venthole, for circulated gases, on the chassis
At least two through holes are also provided with, for being bolted the cover plate, described bolt one end connects the chassis, the other end
The cover plate is connected, and nut is designed with the chassis and cover plate both sides, for fixing the position on the chassis and cover plate；
Further, the cover plate is provided with passage, and for circulated gases, the first gas pipe is connected at passage
Road, be additionally provided with least two through holes on the cover plate, for the bolt connection；
Further, the detected materials are to impregnate the graphite material of resin, and the detected materials are made into hollow
Cylinder, both ends are respectively equipped with chassis and cover plate, form closed cavity, the height of the detected materials is the chassis and the lid
The distance between plate, and the detected materials both ends are connected with the chassis and the cover plate, and junction is additionally provided with sealing ring；
Specifically, the first gas pipeline includes：First breather pipe and the first valve, first valve are arranged on
On one breather pipe, first valve is used for when retracting the detected materials, balances the closed cavity inner and outer air pressure, is easy to
Detected materials retract；
Further, the vacuum drawn equipment, for carrying out vacuum pumping to the closed cavity；
Further, the second gas pipeline, for circulated gases and detection means air pressure inside, the second gas
Pipeline includes：Second breather pipe, air gauge, the 3rd breather pipe and the second valve, second breather pipe one end connection described in
Chassis, the other end of second breather pipe connect one end of the air gauge and the 3rd breather pipe, the 3rd breather pipe
The other end connects second valve and the vacuum drawn equipment, and second valve is used to control in the closed cavity
Gas enters the vacuum drawn equipment, while avoids air after vacuumizing end from entering the closed cavity.
Using above-mentioned technical proposal, a kind of material permeability coefficient detection means of the present invention, have following beneficial to effect
Fruit：
1) a kind of material permeability coefficient detection means provided by the invention detects material by measuring draught head and time
Infiltration coefficient, simplify operating procedure, be more easy to realize；
2) a kind of material permeability coefficient detection means provided by the invention detects material by measuring draught head and time
Infiltration coefficient, eliminate interference of the other materials for testing result so that testing result is more accurate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of profile of material permeability coefficient detection means provided in an embodiment of the present invention；
Fig. 2 is a kind of detailed diagram of the profile of material permeability coefficient detection means provided in an embodiment of the present invention；
Fig. 3 is a kind of course of work schematic diagram of material permeability coefficient detection means provided in an embodiment of the present invention；
Fig. 4 is a kind of overall schematic of material permeability coefficient detection means provided in an embodiment of the present invention；
Fig. 5 is a kind of material permeability coefficient detection method schematic flow sheet provided in an embodiment of the present invention；
Fig. 6 is a kind of profile of material permeability coefficient detection means provided in an embodiment of the present invention.
Accompanying drawing is remarked additionally below：
1- chassis；2- detected materials；3- cover plates；4- first gas pipelines；5- vacuum drawn equipment；6- second gas pipes
Road；7- gas injection equipments；8- cylindrical outer covers；The breather pipes of 41- first；The valves of 42- first；The breather pipes of 61- second；62- air pressure
Table；The breather pipes of 63- the 3rd；The valves of 64- second.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
A kind of material permeability coefficient detection means is provided in the embodiment of the present invention, it is specifically, as Figure 1-4, described
Device includes：Chassis 1, detected materials 2, cover plate 3, first gas pipeline 4, vacuum drawn equipment 5 and second gas pipeline 6, institute
One end that vacuum drawn equipment 5 connects the second gas pipeline 6 is stated, described in the other end connection of the second gas pipeline 6
The side of chassis 1, the detected materials 2 are set on the chassis 1, and the top of detected materials 2 sets the cover plate 3, the lid
The first gas pipeline 4 is connected on plate 3.
Specifically, vent line is set in the chassis 1, and side is provided with venthole, for circulated gases, when the vacuum
When extracting device 5 extracts vacuum to the detection means, gas inside described device is from the vent line and venthole stream
Go out, the second gas pipeline 6 has been welded at the venthole；At least two through holes are also provided with the chassis 1, for leading to
Cover plate 3 described in bolt connection are crossed, described bolt one end connects the chassis 1, and the other end connects the cover plate 3, and described
Chassis 1 and the both sides of cover plate 3 are designed with nut, for fixing the position on the chassis 1 and cover plate 3, between the chassis 1 and cover plate 3
Relative position can be changed by rotating nuts, chassis 1 and the cover plate 3.
Further, the cover plate 3 is provided with passage, for circulated gases and welds the first gas pipeline 4, institute
The diameter for stating the diameter of passage and the first breather pipe 41 of the first gas pipeline 4 is consistent；It is additionally provided with the cover plate 1
At least two through holes, for the bolt connection.
Further, the detected materials 2 are to impregnate the graphite material of resin, and the detected materials 2 are made into
Hollow cylinder, both ends are connected to chassis 1 and cover plate 3, and junction is additionally provided with sealing ring, forms closed cavity, the company
It is by being vacuum state in 5 closed cavity of vacuum drawn equipment to connect, and then air pressure is well below the external world, and treats
Material 2 of measuring and monitoring the growth of standing timber is smooth with chassis 1 and the contact position of cover plate 3 so that adsorbs on the chassis 1 and cover plate 3 at the both ends of detected materials 2；Institute
The height for stating detected materials is the distance between the chassis 1 and described cover plate 3.
Specifically, the first gas pipeline 4 includes：First breather pipe 41 and the first valve 42, first valve 42
It is arranged on the first breather pipe 41, first valve 42 is used for when retracting the detected materials 2, balances inside and outside the cavity
Air pressure, reduce the detected materials 2 for the chassis 1 and the absorption affinity of cover plate 4, be easy to retracting for detected materials 2.
Further, the second gas pipeline 6, for circulated gases and detection means air pressure inside, second gas
Body pipeline 6 includes：Second breather pipe 61, air gauge 62, the 3rd breather pipe 63 and the second valve 64, second breather pipe 61
One end connects the chassis 1, and the other end of second breather pipe 61 connects the one of the breather pipe 63 of air gauge 62 and the 3rd
End, the other end of the 3rd breather pipe 63 connect second valve 64 and the vacuum drawn equipment 5, second valve
64 are used to control the gas in the cavity to enter the vacuum drawn equipment 5, while avoid air after vacuumizing end from entering
The closed cavity；The air gauge 63 is used to detect the air pressure in the closed cavity.
Further, the vacuum drawn equipment 5, for carrying out vacuum pumping to the closed cavity, during detection, first
Second valve 64 is opened, is taken out the air in the closed cavity in described device by the vacuum drawn equipment 5
Take out so that closed cavity forms vacuum environment, and the detected materials 2 are firmly adsorbed on the chassis 1 and lid
On plate 3.
Provided a method that in another feasible embodiment of the invention.Specifically, as shown in figure 5, methods described bag
Include：
After all parts and detected materials are installed on request, it is possible to start infiltration coefficient detection and operate.
S101. the second valve and vacuum drawn equipment are opened, vacuum drawn equipment takes out the air in the closed cavity
Take out, air is flowed by the vent line and second gas pipeline on chassis to the vacuum drawn equipment；Ideally,
When in the cavity being vacuum state, pressure gauge registration is 0, and this registration is absolute pressure value, in actual conditions, vavuum pump
Absolute pressure value is between 0~101.325KPa；When the cavity is vacuum state, the second valve and vacuum drawn are closed
Equipment；The registration for recording final pressure table is registration one, and starts timing.
S102. and the pressure change in the closed cavity of described device is observed；The registration of pressure gauge after record certain time
For registration two, time length can depend on the circumstances；In the process, the gas of hyperbaric environment permeates to environment under low pressure, also
It is that ambient atmos are gradually permeated and diffused into inside the closed cavity that the detected materials are formed so that closed cavity air pressure inside
Change.
S103. according to the registration one, registration two and time, the infiltration coefficient of detected materials is calculated.
In another feasible embodiment of the present invention, there is provided a kind of material permeability coefficient detection means, specifically,
As shown in fig. 6, a kind of material permeability coefficient detection means, described device include：Chassis 1, detected materials 2, cylindrical outer cover 8, lid
Plate 3, gas injection equipment 7, first gas pipeline 4, vacuum drawn equipment 5 and second gas pipeline 6, the gas injection equipment
One end of the first gas pipeline 4 is connected, the other end of the first gas pipeline 4 connects the side of chassis 1, the bottom
The detected materials 2 are set on disk 1, and the top of chassis 1 sets the cylindrical outer cover 8, and the top of cylindrical outer cover 8 sets institute
Cover plate 3 is stated, one end of the second gas pipeline 6, the other end connection of the second gas pipeline 6 are connected on the cover plate 3
The vacuum drawn equipment 5.
Specifically, vent line is set in the chassis 1, and the entrance of the vent line is arranged on the upper surface of chassis 1, institute
The gas outlet for stating vent line is arranged on the side on the chassis 1, for circulated gases；The porch of the vent line is set
The print of detected materials 2；At least two through holes are also provided with the chassis 1, for being bolted the cover plate 3, institute
State bolt one end and connect the chassis 1, the other end connects the cover plate 3, and is designed with the chassis 1 and the both sides of cover plate 3
Nut, for fixing the position on the chassis 1 and cover plate 3.
Specifically, the first gas pipeline 4 includes：First breather pipe 41 and the first valve 42, first valve 42
It is arranged on the first breather pipe 41, one end connection lateral flow orifices of chassis 1 of the first breather pipe 41, described in other end connection
Gas injection equipment 7, the gas injection equipment 7 are used for device inside injection detection gas used.
Further, the cylindrical outer cover 8 is made of metal material, and one end connects the chassis 1, described in other end connection
Cover plate 3, because its hardness is larger, certain space can be supported, both ends are with the chassis 1 and the junction of cover plate 3 using sealing
Circle sealing, forms a closed cavity.
Further, the cover plate 1 is provided with venthole, and the venthole connects the second gas pipeline 6, and described the
Two gas pipelines 6 include：Second breather pipe 61, air gauge 62, the 3rd breather pipe 63 and the second valve 64, second breather pipe
61 one end connects the chassis 1, and the other end of second breather pipe 61 connects the breather pipe 63 of air gauge 62 and the 3rd
One end, the other end of the 3rd breather pipe 63 connects second valve 64 and the vacuum drawn equipment 5, described second
Valve 64 is used to control the gas in the cavity to enter the vacuum drawn equipment 5, at the same avoid vacuumizing terminate after air
Into the closed cavity；The air gauge 62 detects the air pressure in the cavity；The vacuum drawn equipment 5, for institute
State closed cavity and carry out vacuum pumping.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of material permeability coefficient detection means, it is characterised in that described device includes：Chassis (1), detected materials (2), lid
Plate (3), first gas pipeline (4), vacuum drawn equipment (5) and second gas pipeline (6), the vacuum drawn equipment (5) is even
One end of the second gas pipeline (6) is connect, the other end of the second gas pipeline (6) connects chassis (1) side, institute
State and the detected materials (2) are set on chassis (1), the cover plate (3), the cover plate (3) are set above the detected materials (2)
The upper connection first gas pipeline (4)；
Vent line is set in the chassis (1), and side is provided with venthole, for circulated gases；
The detected materials (2) are hollow cylinders, and both ends are connected to chassis (1) and cover plate (3), form closed cavity；
The cover plate (3) is provided with passage, for circulated gases and connects the first gas pipeline (4)；
The vacuum drawn equipment (5), for carrying out vacuum pumping to the closed cavity；
The second gas pipeline (6), for circulated gases and detection means air pressure inside.
2. a kind of material permeability coefficient detection means according to claim 1, it is characterised in that set on the chassis (1)
At least two through holes are put, for being bolted the cover plate (3).
A kind of 3. material permeability coefficient detection means according to claim 2, it is characterised in that bolt one end connection
The chassis (1), the other end connects the cover plate (3), and is designed with nut in the chassis (1) and cover plate (3) both sides, uses
In the fixation chassis (1) and the position of cover plate (3).
A kind of 4. material permeability coefficient detection means according to claim 2, it is characterised in that the detected materials (2)
Height and the distance between the chassis (1) and the cover plate (3) unanimously, and the detected materials (2) both ends with it is described
Chassis (1) and the cover plate (3) connection, junction is additionally provided with sealing ring.
5. a kind of material permeability coefficient detection means according to claim 4, it is characterised in that on the cover plate (3) also
Be provided with least two through holes, for the bolt connection.
A kind of 6. material permeability coefficient detection means according to claim 1, it is characterised in that the first gas pipeline
(4) include：First breather pipe and the first valve, first valve are arranged on the first breather pipe.
7. a kind of material permeability coefficient detection means according to claim 6, it is characterised in that first valve is used for
When retracting the detected materials (2), the closed cavity inner and outer air pressure is balanced, is easy to retracting for detected materials (2).
A kind of 8. material permeability coefficient detection means according to claim 1, it is characterised in that the second gas pipeline
(6) include：Second breather pipe, air gauge, the 3rd breather pipe and the second valve, one end of second breather pipe connect the bottom
Disk (1), the other end of second breather pipe connect one end of the air gauge and the 3rd breather pipe, the 3rd breather pipe
The other end connects second valve and the vacuum drawn equipment (5).
9. a kind of material permeability coefficient detection means according to claim 8, it is characterised in that second valve is used for
Control the gas in the closed cavity to enter the vacuum drawn equipment (5), while avoid air after vacuumizing end from entering
The closed cavity.
A kind of 10. material permeability coefficient detection means according to claim 4, it is characterised in that the detected materials (2)
It is the graphite material for impregnating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316035.6A CN107796746A (en) | 2017-12-12 | 2017-12-12 | A kind of material permeability coefficient detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316035.6A CN107796746A (en) | 2017-12-12 | 2017-12-12 | A kind of material permeability coefficient detection means |
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| Publication Number | Publication Date |
|---|---|
| CN107796746A true CN107796746A (en) | 2018-03-13 |
Family
ID=61537641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316035.6A Pending CN107796746A (en) | 2017-12-12 | 2017-12-12 | A kind of material permeability coefficient detection means |
Country Status (1)
| Country | Link |
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| CN (1) | CN107796746A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580455A (en) * | 2019-01-07 | 2019-04-05 | 东北大学 | A kind of system and method measuring copper foil porosity |
| CN111337379A (en) * | 2020-02-13 | 2020-06-26 | 中国海洋大学 | Ocean sediment gas permeability measuring device and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111337379A (en) * | 2020-02-13 | 2020-06-26 | 中国海洋大学 | Ocean sediment gas permeability measuring device and using method thereof |
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