CN2095709U - Microporous filter - Google Patents
Microporous filter Download PDFInfo
- Publication number
- CN2095709U CN2095709U CN 90225372 CN90225372U CN2095709U CN 2095709 U CN2095709 U CN 2095709U CN 90225372 CN90225372 CN 90225372 CN 90225372 U CN90225372 U CN 90225372U CN 2095709 U CN2095709 U CN 2095709U
- Authority
- CN
- China
- Prior art keywords
- measuring cup
- filter
- subiculum
- vacuum
- millipore filter
- 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.)
- Expired - Lifetime
Links
Abstract
The utility model relates to a microporous filter which is mainly used for the sea, the lake, etc., to monitor and analyze water quality. The filter is composed of a vacuum cylinder body, and a measuring cup. The vacuum cylinder body and the measuring cup are connected in a sealing way by a measuring cup support subiculum 15. An upper cover of the measuring cup is connected with a filter membrane support subiculum which is communicated with the measuring cup, the upper cover of the measuring cup presses a filter membrane through a clamping nut, and the top end of the measuring cup is provided with an interface mouth tube. The other filter membrane is pressed between the measuring cup and the measuring cup support subiculum through an inverted clamping nut. The filter integrates the advantages of the prior art into a whole, and improves the advantages of the prior art. The utility model has the advantages of wide application, and convenient operation. The filter can be used in the states of positive pressure and negative pressure, and can not generate secondary pollution to a sample. The utility model can be used as double-filtration and can be connected in series.
Description
The utility model belongs to micropore technical filter device in the film separation field, is mainly used in the monitoring analysis of water quality such as ocean, rivers and lakes.
Existing similar filter, more common has two kinds, a kind ofly be: dust cap and measuring cup do not have the sealing ring sealing, on the dosing hole is arranged, the dosing hole can patch independent air cleaner in addition, adopt screw thread to screw to passive subiculum of film and measuring cup, subiculum and collection container adopt the inclined-plane to be connected.Its shortcoming is subiculum and measuring cup when screwing, and face is subjected to the tangential force effect, may cause film wrinkling and break, and the sample after filtering needs pour out from collection container, very easily brings secondary pollution to sample.Another kind is: and adopt flat seal between the subiculum that is spirally connected of measuring cup and the vacuum (-tight) housing, the vacuum (-tight) housing bottom is lined with the rubber layer of one deck softness, and sample collection bottle is put into vacuum (-tight) housing in advance, and when vacuumizing, vacuum (-tight) housing and rubber layer compress mutually.Though this structure has overcome the shortcoming of secondary pollution, be not suitable for operation under vibration and the swing environment.And above two kinds of structures all can only be operated under negative pressure condition.
The purpose of this utility model is to overcome shortcoming of the prior art, integrates its advantage, and is improved, and a kind of water quality monitoring filter that is adapted at operation on ocean, the rivers and lakes is provided.
Described millipore filter, mainly form by vacuum cylindrical shell, measuring cup, both support subiculum by measuring cup and are tightly connected, it is characterized in that: cover on the measuring cup air cleaner directly is installed, concrete structure is: directly connect a filter membrane that communicates with measuring cup at the measuring cup loam cake and support subiculum, be lined with porous plate under the filter membrane, place filter membrane to support on the subiculum together, the top has one and connects the mouth pipe, screws by binding nut to compress.Measuring cup supports subiculum and another metafiltration film is arranged in the measuring cup junction, is lined with porous plate under the film, and compresses by inverted binding nut.The mode that the design adopts binding nut to compress makes film only be subjected to vertical effect to pressure, has overcome filter membrane and has been subjected to the tangential force effect and produces shortcoming wrinkling, that break when upper and lower parts screw.
This millipore filter is widely used, easy to operate, can under positive negative pressure state, use, sample is not produced secondary pollution, and has prevented breaking of filter membrane effectively.This device can also be made double-filtration and the use of connecting.
Below contrast Figure of description,, provide embodiment of the present utility model, and the utility model is described in further detail in conjunction with the aforementioned techniques scheme:
Fig. 1 is the millipore filter structural representation.
Vacuum cylindrical shell 24, measuring cup 10 support subiculum 15 by measuring cup and are tightly connected, measuring cup loam cake 8 is sealed by sealing ring 7 with measuring cup 10, have charging nozzle 9 on the measuring cup loam cake 8, filter membrane supports subiculum 6 and is communicated with measuring cup 10, settle porous plate 3, film 2 on it successively, connect mouth pipe 1 and sealing ring 4, and screw by binding nut 5 and to compress.Measuring cup supports subiculum 15 and screws by binding nut 13 with measuring cup 10, compresses film 11 simultaneously and fills up porous plate 14 in film under, and sealed by sealing ring 12.Measuring cup subiculum 15 middle parts are provided with control valve 16, so that the controlled filter amount.Vacuum cylindrical shell 24 adopts with vacuum cylinder top cover 18 and is slidingly matched, and by sealing ring 19 sealings, measuring cup supports and adopts rubber stopper 17 to be tightly connected between subiculum 15 and the vacuum cylindrical shell 24.On vacuum cylindrical shell 24 walls vacuum meter 23 is installed, the bottom be provided with can be about flexible fixing feet 25, also be provided with venting control valve 21 simultaneously, among the vacuum suction control valve 22(figure because of drawing simultaneously, so only see a control valve).During negative pressure filtration, mention vacuum cylinder top cover 18, put into sample bottle 20, vacuum suction control valve 22 connects vavuum pump, closes venting control valve 21.During positive press filtration, the control valve 21 of will exitting is opened and can be filtered.
Claims (6)
1, a kind of millipore filter mainly is made up of vacuum cylindrical shell (24), measuring cup (10), and both support subiculum (15) by measuring cup and are tightly connected, and it is characterized in that:
(1) on the measuring cup loam cake (8) air cleaner is installed, concrete structure is: measuring cup loam cake (8) is gone up and is connected a filter membrane support subiculum (6) that communicates with measuring cup (10), and the porous plate (3), the film (2) that place filter membrane to support on the subiculum (6) are compressed by binding nut (5) together with connecing mouth pipe (1);
(2) porous plate (14), the film (11) that places measuring cup to support on the subiculum (15) compresses by inverted binding nut (13).
2, millipore filter as claimed in claim 1 is characterized in that having on the measuring cup loam cake (8) charging nozzle (9).
3, millipore filter as claimed in claim 1 is characterized in that measuring cup supports subiculum (15) middle part and is provided with control valve (16).
4, millipore filter as claimed in claim 1 is characterized in that vacuum cylindrical shell (24) wall is provided with vacuum meter (23).
5, millipore filter as claimed in claim 1 is characterized in that vacuum cylindrical shell (24) bottom is provided with venting control valve (21), vacuum suction control valve (22).
6, millipore filter as claimed in claim 1 is characterized in that vacuum cylindrical shell (24) bottom is equipped with fixing feet (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225372 CN2095709U (en) | 1990-12-08 | 1990-12-08 | Microporous filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225372 CN2095709U (en) | 1990-12-08 | 1990-12-08 | Microporous filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2095709U true CN2095709U (en) | 1992-02-12 |
Family
ID=4902814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90225372 Expired - Lifetime CN2095709U (en) | 1990-12-08 | 1990-12-08 | Microporous filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2095709U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212226A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Micropore membrane filter |
| CN103212227A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Disposable vacuum filter |
| CN103230690A (en) * | 2013-04-24 | 2013-08-07 | 浙江硕华医用塑料有限公司 | Vacuum filter component |
| CN103432796A (en) * | 2013-08-08 | 2013-12-11 | 浙江硕华医用塑料有限公司 | Syringe needle filter and lower cover thereof |
| CN103432797A (en) * | 2013-08-12 | 2013-12-11 | 浙江硕华医用塑料有限公司 | Syringe filter and lower cover thereof |
-
1990
- 1990-12-08 CN CN 90225372 patent/CN2095709U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212226A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Micropore membrane filter |
| CN103212227A (en) * | 2013-04-24 | 2013-07-24 | 浙江硕华医用塑料有限公司 | Disposable vacuum filter |
| CN103230690A (en) * | 2013-04-24 | 2013-08-07 | 浙江硕华医用塑料有限公司 | Vacuum filter component |
| CN103212227B (en) * | 2013-04-24 | 2014-10-29 | 浙江硕华医用塑料有限公司 | Disposable vacuum filter |
| CN103212226B (en) * | 2013-04-24 | 2014-10-29 | 浙江硕华医用塑料有限公司 | Micropore membrane filter |
| CN103432796A (en) * | 2013-08-08 | 2013-12-11 | 浙江硕华医用塑料有限公司 | Syringe needle filter and lower cover thereof |
| CN103432797A (en) * | 2013-08-12 | 2013-12-11 | 浙江硕华医用塑料有限公司 | Syringe filter and lower cover thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |