CN2643317Y - A structure of membrane cisterna in determination device for pore-size distribution of porous inorganic membrane - Google Patents
A structure of membrane cisterna in determination device for pore-size distribution of porous inorganic membrane Download PDFInfo
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- CN2643317Y CN2643317Y CN 03238027 CN03238027U CN2643317Y CN 2643317 Y CN2643317 Y CN 2643317Y CN 03238027 CN03238027 CN 03238027 CN 03238027 U CN03238027 U CN 03238027U CN 2643317 Y CN2643317 Y CN 2643317Y
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- membrane cisterna
- base
- pore
- membrane
- pipe
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Abstract
The utility model discloses a membrane cisterna structure in a measurement device for a pore-diameter distribution of a porous inorganic film, consists of a membrane cisterna pipe, a top cap, a base, a pressing cover, a bracket, a back cover and a base of the membrane cisterna pipe, and is characterized in that both ends of the membrane cisterna pipe made from a transparent pressure-resistance toughened glass are respectively covered with a seal ring, then,respectively inserted into the top cap and the base and sealed with the pressing cover. The top cap is fixed with the base through the bracket by a screw. One side of the membrane cisterna is fixed on the base of the membrane cisterna through an adhesive and the other side is enclosed in order to prevent the gas from leakage. The base equipped with the membrane cisterna is positioned in the base and fixed through a hexagon screw. The membrane cisterna is positioned on the pore-diameter distribution measurement device for the measurement of the pore-diameter distribution and the bubbling point. The utility model not only ensures the seal performance of the membrane cisterna, but also directly observes the filtration condition and pore-diameter distribution of the porous inorganic film and also accurately determines the bubbling point of the porous inorganic film, which has the advantage of a simple structure, a strong visualization, an easy operation and a convenient promotion.
Description
Technical field
The utility model belongs to technical field of chemical engineering, relates to the design of membrane cisterna in the pore diameter distribution determinator of inorganic porous membrane.
Background technology
In the process of membrane science technical development, inorganic porous membrane is owing to have advantages such as higher separation selectivity, thermal stability, chemical stability, caused numerous scientific research personnel's great attention, existing to be widely used in numerous areas such as food, biology, chemical industry, the energy, environmental protection.The mensuration of the pore property parameter of inorganic porous membrane (bubble point, average pore size, pore diameter distribution etc. as before) is most important for the production technology of improving the film product, the research and development of promoting the film product and application.
At present, the method for testing for inorganic porous membrane pore property parameter mainly adopts mercury intrusion method and bubble platen press.And mercury intrusion method is except that instrument costs an arm and a leg, and the mercury metal is unfavorable for operator's health, adds the high pressure of mercury injection apparatus in measuring, and can make the sample distortion and introduce than mistake, thereby the bubble platen press then becomes the common method of test inorganic porous membrane pore property parameter.
Yet, adopting the bubble platen press to measure in the determinator of inorganic porous membrane permeability energy, membrane cisterna is made as totally-enclosed property device usually to guarantee the sealing of membrane cisterna.Although this structure membrane cisterna can guarantee normally carrying out of test job, visual poor, can not directly observe the infiltration situation of film pipe and the surface structure in hole.And the first bubble point of inorganic porous membrane determine that usually by the emerge pressure condition of first bubble of soap bubble flowmeter be benchmark, the inevitable like this measured value and the true value of first bubble point of causing has certain deviation, so that cause test result inaccurate, the selection of practical engineering design and parameter is exerted an adverse impact.
Summary of the invention
The purpose of this utility model is a kind of membrane cisterna of design, this membrane cisterna is an assembly in the inorganic porous membrane pore diameter distribution determinator, utilize this membrane cisterna can observe the infiltration situation and the pore size distribution situation of inorganic porous membrane under different pressures intuitively, and can accurately determine its bubble point just, to solve in the existing proving installation problems such as the existing visuality of membrane cisterna mensuration poor, first bubble point is inaccurate.
Purpose provided by the utility model is achieved in that membrane cisterna mainly comprises six parts such as membrane cisterna pipe, top cover, base, gland, support, back cover and film pedestal tube.The membrane cisterna pipe is withstand voltage tempered glass, fills in respectively in top cover and the base after the both sides of membrane cisterna pipe are put suitable packing ring, by gland it is sealed, and top cover and base link together by screw by support.End with the film pipe is fixed on the film pedestal tube by tackifier then, and the other end then sticks with glue agent and blocks and prevent its gas leakage.At this moment, the pedestal that is stained with the film pipe is sticked into back cover inside fill in the base, and tighten with hex(agonal)screw.After membrane cisterna is mounted to the pore property parametric measurement device, just can test.
The employing such scheme can guarantee promptly that the sealing of membrane cisterna can be easy to observe directly the infiltration situation and the pore structure distribution of inorganic porous membrane again, and can determine exactly simultaneously that the position and the first bubble point in first hole appear in inorganic porous membrane.Because combining closely of gland simple in structure and O-ring seal mainly adopted in sealing of the present utility model, and be simple in structure, be easy to make, practical, be easy to promote.
Description of drawings
Fig. 1 is a sectional view of the present utility model.
Fig. 2 is the sectional view of film pedestal tube.
In Fig. 1,1 air admission hole, 2 back covers, 3 bases, 4 glands, 5 membrane cisterna pipes, 6 supports, 7 top covers, 8 ventholes, 9 charge doors, 10 film pedestal tube lay down locations.
In Fig. 2,11 adhesive film pipe places.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
In Fig. 1, immersion agent is added from charge door (9), do not have filmed passing tube until it, then, feed nitrogen from air admission hole (1), allow nitrogen enter into the film pedestal tube along draft tube, because an end of film pedestal tube is communicated with an end of film pipe, the other end of film pipe is then blocked in advance, thereby gas can only be from membrane tube wall through entering in the membrane cisterna pipe (5), at first, because the hole of film pipe is soaked into by immersion agent, according to bubble platen press measuring principle, gas can not see through, when pressure differential reaches a numerical value, according to the Laplace equation, hole maximum in the film pipe is opened, and the force value of this moment is first bubble point, because visuality of the present utility model is good, thereby can accurate obtain the position of determining film Guan Dechu bubble point and place thereof.Increase gradually along with pressure reduction increases between the percentage of open area of film, also can provide understanding intuitively to the homogeneous degree of film pore structure.
Claims (1)
1. the structure of membrane cisterna in the inorganic porous membrane pore diameter distribution determinator is made up of membrane cisterna pipe (5), top cover (7), base (3), gland (4), support (6), back cover (2) and film pedestal tube six parts, it is characterized in that:
A. fill in respectively in top cover (7) and the base (3) after the both sides of the membrane cisterna pipe (5) that will be made by transparent withstand voltage tempered glass put O-ring seal, with its sealing, top cover (7) is connected with screw by support (6) with base (3) with gland (4);
B. an end of film pipe is sticked with glue agent and be fixed on the film pedestal tube, other end sealing;
The pedestal that c. will be stained with the film pipe sticks into back cover (2) lining and fills in the base (3), and fixes with hex(agonal)screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03238027 CN2643317Y (en) | 2003-08-30 | 2003-08-30 | A structure of membrane cisterna in determination device for pore-size distribution of porous inorganic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03238027 CN2643317Y (en) | 2003-08-30 | 2003-08-30 | A structure of membrane cisterna in determination device for pore-size distribution of porous inorganic membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643317Y true CN2643317Y (en) | 2004-09-22 |
Family
ID=34291959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03238027 Expired - Fee Related CN2643317Y (en) | 2003-08-30 | 2003-08-30 | A structure of membrane cisterna in determination device for pore-size distribution of porous inorganic membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643317Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151487A (en) * | 2011-01-12 | 2011-08-17 | 宁波大学 | Full-automatic ultrafiltration membrane pore size distribution determining instrument and automatic determining method thereof |
| CN106596376A (en) * | 2016-12-20 | 2017-04-26 | 威海威高血液净化制品有限公司 | Test method of aperture distribution of hemodialysis membrane |
-
2003
- 2003-08-30 CN CN 03238027 patent/CN2643317Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151487A (en) * | 2011-01-12 | 2011-08-17 | 宁波大学 | Full-automatic ultrafiltration membrane pore size distribution determining instrument and automatic determining method thereof |
| CN106596376A (en) * | 2016-12-20 | 2017-04-26 | 威海威高血液净化制品有限公司 | Test method of aperture distribution of hemodialysis membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |