CN201464116U - Vacuum detector of flat sheet type filter membrane component - Google Patents
Vacuum detector of flat sheet type filter membrane component Download PDFInfo
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- CN201464116U CN201464116U CN2009200779053U CN200920077905U CN201464116U CN 201464116 U CN201464116 U CN 201464116U CN 2009200779053 U CN2009200779053 U CN 2009200779053U CN 200920077905 U CN200920077905 U CN 200920077905U CN 201464116 U CN201464116 U CN 201464116U
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- filter membrane
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- pipeline
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Abstract
The utility model discloses a vacuum detector of a flat sheet type filter membrane component, which comprises a pipeline and a vacuum meter. One end of the pipeline is communicated with the extraction port of a flat sheet type filter membrane component, the other end of the pipeline is communicated with a vacuum pump; and the vacuum meter is arranged on the pipeline and is communicated with the pipeline. Since the vacuum extraction process is used to substitute the pressure process, the utility model solve the problem of integrity testing of the MBR flat sheet type filter membrane component, and realizes the test of the sealing quality of the filter membrane and the intermediate diversion plate and the performance uniformity of the filter membrane.
Description
Technical field
The utility model relates to a kind of vacuum detector, particularly a kind of plain film formula filter membrane element vacuum detector.
Background technology
Membrane bioreactor (MBR) technology is the new technology of wastewater treatment and water resource reuse aspect in the environmental engineering, it is a kind of novel method for treating water that the high performance membrane separating technology is combined with the traditional biological method, can be widely used in the processing of municipal wastewater and multiple organic industrial sewage.Wherein, film separation system is the main device of this new technology, and plain film formula filter membrane element then is the key components of film separation system.
Early stage in MBR technological development research, employing be the separated type filter membrane component, its equipment price, operating cost and energy consumption are very high, have limited the progress of application and development greatly.After this, developed high performance immersion filter membrane component.Than the membrane bioreactor that adopts the separated type filter membrane component, adopt the membrane bioreactor device structure of integrated immersion filter membrane component simple, because it adopts the suction type filtering mode, operation energy consumption has reduced 10-20 doubly than the separated type filter membrane component that adopts the adding pressure type filter type, thereby makes the application and development of MBR obtain very fast progress.The immersion filter membrane component (element) that adopts both at home and abroad has two kinds of hollow fiber type peace chips at present.The cost of manufacture of hollow fiber type is lower, but on cleaning technique, there is bigger difficulty, because thinner fibre pipe can bear higher interior pressure, so quality monitoring of product, be that bubble point test and integrality are measured and can be realized by the method for squeezing into air pressurized in fibre pipe, existing special testing tool on the market.And than the hollow fiber type filter membrane component, the plain film formula filter membrane element surface of membrane bioreactor special use is smooth, and face is difficult for being polluted by mud, and equipment can stably move by longer-term, is the kind that at present domestic and international manufacturer develops energetically.At home, the MBR membrane separation assemblies product of existing hollow fiber type.Simultaneously, Shanghai Inst. of Applied Physics Chinese Academy of Sciences takes the lead in having developed immersion plain film filter membrane element at home, and the Shanghai Si Napu company that this institute and Shanghai filtrator company esablish cooperatively has begun to produce in batches MBR plain film formula filter membrane element, and puts on market.
Yet, be the problem that must solve to the quality testing of plain film formula filter membrane component products.
The plastics fair water fin in the middle of the formation of MBR plain film formula filter membrane element is generally and the plain film formula filter membrane on two sides, perimeter bond sealing (adopting binder method or hot weld mull technique) forms.The hermetic unit of periphery must perfectly fall into, and could guarantee that membrane separation assemblies normally moves, and the mud mixed liquid channeling does not take place.But because the structure of plain film formula filter membrane element is different from hollow fiber formula filter membrane element, its filter membrane surface area is big, reach 1-1.5 square metre, inwardly squeeze into interior pressure behind the air as reaching 5-10KPa, will produce thousands of kilograms tension force in the inboard of filter membrane, make the element bulk deformation, even filter membrane break, therefore, it is obviously worthless plain film formula filter membrane element being adopted the integrity test method of hollow fiber formula filter membrane component; Secondly, if measure the bubble point of plain film formula filter membrane, then gas pressure intensity generally must reach 100KPa, and this is worthless especially, and for this reason, applied physics research institute in Shanghai has developed and has been specifically designed to the instrument of measuring plain film formula filter membrane bubble point.But, then be still the problem that needs solve for the integrity test of MBR plain film formula filter membrane element.
The utility model content
The technical problems to be solved in the utility model is in order to overcome the defective that prior art can't be carried out integrity test to MBR plain film formula filter membrane element, a kind of plain film formula filter membrane element vacuum detector of integrity test of the MBR of being applicable to plain film formula filter membrane element to be provided.
The utility model solves above-mentioned technical matters by following technical proposals:
A kind of plain film formula filter membrane element vacuum detector, its characteristics are that it comprises: a pipeline, an end is communicated with the bleeding point of this plain film formula filter membrane element, and the other end is communicated with a vacuum pump; One vacuum meter is located on this pipeline and with this pipeline and is communicated with.
Preferably, this plain film formula filter membrane element vacuum detector also comprises a buffer container, is located on this pipeline and with this pipeline to be communicated with.
Preferably, this vacuum meter is pointer vacuum meter.
Positive progressive effect of the present utility model is: plain film formula filter membrane element vacuum detector of the present utility model adopts vacuum aspiration to replace pressurization, solved the integrity test problem of MBR plain film formula filter membrane element, thereby realized check the homogeneity of the airtight quality of filter membrane and middle fair water fin and filter membrane performance.
Description of drawings
Fig. 1 is the structural representation of plain film formula filter membrane element vacuum detector of the present utility model.
Fig. 2 is the synoptic diagram of an Application Example of plain film formula filter membrane element vacuum detector of the present utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
In order to solve problem, the utility model proposes a kind of vacuum detector that utilizes the special use of vacuum aspiration realization to the integrity test of MBR plain film formula filter membrane element.
As shown in Figure 1, plain film formula filter membrane element vacuum detector 1 ' of the present utility model comprises a pipeline 1, one end of this pipeline 1 is used for being communicated with the bleeding point of this plain film formula filter membrane element, and the other end is communicated with the air suction inlet 21 of a vacuum pump 2, and this vacuum pump 2 also has an exhausr port 22; And a vacuum meter 3, be located on this pipeline 1 and and be communicated with this pipeline 1.Wherein, the power of the vacuum pump 2 that is adopted can be less, can reach general vacuum tightness and require to get final product; The precision of the vacuum meter 3 that is adopted is then had relatively high expectations, and can select circular pointer vacuum meter for use.
In addition, in order to relax the testing process of bleeding, this plain film formula filter membrane element vacuum detector can also comprise a buffer container 4, and this buffer container 4 is located on this pipeline 1 and with this pipeline 1 and is communicated with.
This plain film formula filter membrane element vacuum detector can be packaged in the instrument box that stainless sheet steel constitutes, and the position that only places naked eyes to be easy to observe the disc face of vacuum meter.
Vacuum detector of the present utility model is applied to a plain film formula filter membrane element integrity test embodiment as shown in Figure 2.Plastics fair water fin 5 in the middle of MBR plain film formula filter membrane element 10 comprises, and two plain film formula filter membranes 6 being located at the tow sides place of this plastics fair water fin 5, this plastics fair water fin 5 is sealing adhesive with the periphery of this plain film formula filter membrane 6, and the sealing position is shown in Reference numeral 7.The bleeding point of this plain film formula filter membrane element 10 is provided with an air and extracts pipe 8 out.Wherein, in this embodiment, select a capacity to be about the container of 5 liters as buffer container 4.
The measurement procedure of utilizing vacuum detector of the present utility model to carry out is as follows:
1) MBR plain film formula filter membrane element 10 to be measured is placed on the operation element platform, adopt one to be suitable for and to carry out attended operation and the suitable elastic hose 9 of specification is communicated with the end that is used to be communicated with plain film formula filter membrane element that these air are extracted pipe 8 and pipeline 1 out.
2) start vacuum pump 2, the pointer of vacuum meter 3 rotates counterclockwise, and first quick and back slow, stops at certain position at last.
3) after vacuum pump 2 started for 20 seconds, note the shown vacuum tightness reading of pointer of vacuum meter 3.
4) take off this plain film formula filter membrane element, change another plain film formula filter membrane element, carry out next round and measure.
The principle of above-mentioned measurement procedure is:
In this embodiment, the filter membrane that this MBR plain film formula filter membrane component products is adopted is the large aperture ultra filtration membrane that our company produces voluntarily, and the micropore size of filter membrane is 0.1 μ m.Because manufacturing in batches of filter membrane carried out, the technological parameter in every batch production process (as water temperature, air humidity etc.) is not quite similar, so the micropore size of different batches filter membrane can slightly change.Filter membrane is after drying and other treatment, and micropore has air impermeability, but when aspiration vacuum level is higher, still has the minimum gas permeability.Therefore, when MBR plain film formula filter membrane element being carried out the vacuum draw check, when vacuum tightness rises to certain high value, the minimum gas that sees through from the filter membrane micropore is (because membrane area is bigger, the total air that sees through is no small) can reach balance with the suction tolerance of vacuum pump, at this moment, the pointer of vacuum meter just stably stops at the position that certain is determined.MBR plain film formula filter membrane element for the filter membrane processing of adopting same production batch, if the filter membrane on two sides is intact with the airtight quality of middle fair water fin, then the data of the aspiration vacuum level that obtains in test of this batch plain film formula filter membrane element should be identical basically.
After the vacuum tightness detection of same batch of filter membrane element is finished, can calculate vacuum tightness mean value.Sub-average 95% the time when the absolute value of the vacuum tightness of certain filter membrane element, just can determine that it is defective product.To the defective product inspection of doing over again.If there is defective in the hermetic unit at periphery place, the repairing of can doing over again.Reach the vacuum tightness index of this batch filter membrane element through repairing the final vacuum degree, then still can be used as certified products.If the filter membrane face exists bigger defective to cause vacuum tightness not up to standard, then as waste disposal.
Plain film formula filter membrane element vacuum detector of the present utility model also can be used for the plain film formula filter membrane element of other specification is carried out integrity test, and can determine flexibly according to actual needs the vacuum tightness index that certified products are set.
In sum, vacuum detector of the present utility model has solved the integrity test problem of MBR plain film formula filter membrane element, thereby has realized the check to the homogeneity of the airtight quality of filter membrane and middle fair water fin and filter membrane performance.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (3)
1. plain film formula filter membrane element vacuum detector is characterized in that it comprises:
One pipeline, an end is communicated with the bleeding point of this plain film formula filter membrane element, and the other end is communicated with a vacuum pump;
One vacuum meter is located on this pipeline and with this pipeline and is communicated with.
2. plain film formula filter membrane element vacuum detector as claimed in claim 1 is characterized in that it also comprises a buffer container, is located on this pipeline and with this pipeline to be communicated with.
3. plain film formula filter membrane element vacuum detector as claimed in claim 1 is characterized in that this vacuum meter is pointer vacuum meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200779053U CN201464116U (en) | 2009-07-07 | 2009-07-07 | Vacuum detector of flat sheet type filter membrane component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200779053U CN201464116U (en) | 2009-07-07 | 2009-07-07 | Vacuum detector of flat sheet type filter membrane component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464116U true CN201464116U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200779053U Expired - Fee Related CN201464116U (en) | 2009-07-07 | 2009-07-07 | Vacuum detector of flat sheet type filter membrane component |
Country Status (1)
| Country | Link |
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| CN (1) | CN201464116U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393283A (en) * | 2011-09-15 | 2012-03-28 | 昆山迈致治具科技有限公司 | Vacuum pressure testing jig |
| CN107121543A (en) * | 2017-05-03 | 2017-09-01 | 安徽贝驰生物科技有限公司 | Liquid detection cup and its detection method with vacuum drawing liquid structure |
-
2009
- 2009-07-07 CN CN2009200779053U patent/CN201464116U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393283A (en) * | 2011-09-15 | 2012-03-28 | 昆山迈致治具科技有限公司 | Vacuum pressure testing jig |
| CN107121543A (en) * | 2017-05-03 | 2017-09-01 | 安徽贝驰生物科技有限公司 | Liquid detection cup and its detection method with vacuum drawing liquid structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130707 |