CN108452683A - Filter membrane leaks point detection device - Google Patents
Filter membrane leaks point detection device Download PDFInfo
- Publication number
- CN108452683A CN108452683A CN201710095531.7A CN201710095531A CN108452683A CN 108452683 A CN108452683 A CN 108452683A CN 201710095531 A CN201710095531 A CN 201710095531A CN 108452683 A CN108452683 A CN 108452683A
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- China
- Prior art keywords
- detection device
- filter membrane
- filtration membrane
- membrane elements
- point detection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
- B01D65/104—Detection of leaks in membrane apparatus or modules
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of filter membranes to leak point detection device, and the filtration membrane elements include filter membrane, supporting guide plate and bleeding point, the filter membrane hermetic unit formed be bonded with supporting guide plate；The detection device includes the clamping device by the air source of piping connection, pressure regulator valve, pressure gauge and the fixed filtration membrane elements；One end of the pipeline is connected to air source, and the other end is connected to the bleeding point, and the shape of the clamping device is adapted with the shape of the filtration membrane elements.Detection device of the present invention solves the problems, such as that vacuum aspiration can only determine whether to reveal and cannot accurately judge leakage point, the integrity test that can solve the problems, such as flat membrane component again simultaneously, to realize airtight quality inspection and the confirmation of leakage point position to filter membrane and intermediate water conservancy diversion support plate.
Description
Technical field
The present invention relates to a kind of positive pressure detection devices, and point detection device is leaked more particularly to a kind of filter membrane.
Background technology
Membrane bioreactor（MBR）It is the emerging skill that membrane technology is combined with the biochemical reaction in sewage disposal
Art, also referred to as membrane separation activated sludge process.It appears in earliest in the 1970s, worldwide being answered extensively at present
With.Wherein, film separation system is the core apparatus of this item new technology, and membrane component is then the key element of film separation system.
Common MBR membrane components have doughnut curtain and two kinds flat both at home and abroad at present.Doughnut curtain membrane element
Part cost of manufacture is relatively low, but there is easily dirty stifled, difficult cleaning, is easy the shortcomings of fracture of wire.And doughnut curtain membrane component is compared,
Flat filtration membrane elements surfacing, diaphragm are not easy to be contaminated, equipment can longtime running, be at present both at home and abroad Devoting Major Efforts To Developing
Kind.
Flat filtration membrane elements are generally by plastic support deflector and bonding（It is bonded and sealed and uses ultrasonic bonding or heat
Weld mull technique）Support plate two sides flat filtration module at.The hermetic unit on membrane component periphery must be completely without leak source,
It can guarantee membrane component normal operation without mud mixed liquid channeling.Therefore, it is necessary to using detection device to membrane component
The quality of product is detected.
Since flat filtration membrane elements film surface area is big, reach 1-1.5 square metres, if directly to diaphragm and support
Internal pressure reaches 5-10KPa after squeezing into air in plate, thousands of kilograms of tension will be generated inside filtration membrane elements so that element
Deformation even ruptures.Patent of invention CN 201464116 discloses a kind of sheet type membrane component vacuum detector, although this passes through
The detector can determine that membrane component has the quality problems of leakage, but due to the technological parameter phase not to the utmost of every batch of film product
Together, membrane aperture can also change, and the numerical value tested every time is caused to have differences, while this kind of method is not easy to find specifically to let out
Leak source accordingly even when being determined as substandard products, but is difficult that processing again is remedied.
Invention content
In view of the above problems, the present invention provides a kind of filter membranes that can help to accurately judge product leakage point specific location
Leak point detection device.
A kind of filter membrane leakage point detection device is provided, the filtration membrane elements include filter membrane, supporting guide plate and pumping
Gas port, the filter membrane hermetic unit formed be bonded with supporting guide plate；The detection device include by the air source of piping connection,
The clamping device of pressure regulator valve, pressure gauge and the fixed filtration membrane elements；One end of the pipeline is connected to air source, the other end with
The bleeding point connection, the shape of the clamping device are adapted with the shape of the filtration membrane elements.
Preferably, it is connected with shut-off valve between the pressure regulator valve and the bleeding point.Before ventilating to filtration membrane elements, utilize
Pressure regulator valve is by needed for air pressure adjustment to detection after air pressure range, then slowly opens shut-off valve to ventilating in filtration membrane elements, utilizes
The method is conducive to that filter membrane is prevented to be damaged due to the impact of moment big air-flow.
Preferably, the pressure gauge is digital display manometer.Digital display manometer is swift in response, and precision is high, and operator can be allowed most
It is accurately read pressure data soon.
Preferably, pointer pressure gauge is connected between the air source and the pressure regulator valve.In the exit of air source, connection refers to
Needle force table is examined before ventilating to pipeline, and whether the air pressure come out from air source prevents excessive considerably beyond air pressure needed for detection
Air pressure impact failure is caused to the parts in pipeline.
Preferably, the clamping device includes the positioning of supporting rack, top board, lower platen and the clamping filtration membrane elements
Block, locating piece are fixed on supporting rack；Top board is placed in parallel with lower platen is fixed on supporting rack, and forms slit, the mistake
Filter membrane component is positioned in slit.Filtration membrane elements are positioned in the slit that top board is formed with lower platen, will by locating piece
Filtration membrane elements are fixed with supporting rack.
Preferably, the slit sizes are bigger 4 ~ 8mm than the thickness of the filtration membrane elements.
It is further preferable that the side of the clamping device is not provided with locating piece, the side that locating piece is not arranged is the mistake
Filter membrane component insert port.
It is further preferable that two locating pieces are arranged in the side of the clamping device.
It is further preferable that rounded corner at the insert port.
Preferably, region contained by the top board or lower platen and the hermetic unit are to the filtration membrane elements center side
It coincides to institute's envelope region.Apparatus of the present invention are the air-tightness for measuring hermetic unit, so hermetic unit cannot be kept off
Firmly, top board or lower platen are placed in the center but not of filtration membrane elements by the stability for while not ensuring filtration membrane elements to be measured
Cover the region of hermetic unit.
Based on described device, the present invention can accurately measure the specific leakage point of hermetic unit with convenient and efficient, the present invention
Most preferably detection method includes the following steps：
Whether the numerical value for S1. first looking at pointer pressure gauge is much larger than the test pressure of filtration membrane elements（It is general to test positive pressure
0.02-0.05MPa）；
S2. flat filtration membrane elements to be measured are slowly positioned in clamping device slit, check whether filtration membrane elements clamp
In place, it is appropriate for attended operation using one and the suitable snorkel of specification is connected to filtration membrane elements bleeding point and air source；
S3. shut-off valve is closed, the numerical value for opening pressure regulator valve adjustment air pressure to digital display manometer is shown as 0.02 ~ 0.05Mpa, then
Shut-off valve is slowly opened, hears that compressed gas is slowly injected between filter membrane and supporting guide plate；
S4. it is applied on filtration membrane elements tow sides filter membrane tape edge Nian Jie with the surrounding of supporting guide plate with suds（It is close
Seal part）, bubble generation is checked whether there is after stablizing 3min, may indicate that the cemented side seam of the membrane component is close if bubble-free generates
Envelope property is good, is marked with felt-tip pen at generation bubble if generating bubble；
S5. shut-off valve is closed, filtration membrane elements is taken out and carries out next filtration membrane elements test, if the filtration membrane elements taken out have gas
What bubble generated can be bonded again.
Beneficial effects of the present invention are as follows：
Filter membrane of the present invention leaks point detection device, solve vacuum aspiration can only determine whether leakage and cannot be accurate
The problem of judging leakage point, while the integrity test of flat panel filter membrane component can be solved the problems, such as again, to realize to mistake
The airtight quality of filter membrane and intermediate supports deflector is examined and the confirmation of leakage point position.The device includes air source, pressure regulator valve, pressure
The clamping device of power table and the fixed filtration membrane elements；One end of the pipeline is connected to air source, the other end and the pumping
Mouth connection；Simple in structure, simple operation simply smears suds, after carrying out pressure regulation ventilation, you can fast in the hermetic unit
Speed detection airtight quality and specific leakage point.Further, pointer pressure gauge and digital display manometer are set in vent line,
It ensure that the highly effective and safe of detection.
Description of the drawings
Fig. 1 is 1 front view schematic diagram of the embodiment of the present invention.
Fig. 2 is Example 1 and Example 2 of the present invention clamping device top view illustration.
Fig. 3 is Example 1 and Example 2 of the present invention clamping device front view schematic diagram.
Fig. 4 is 2 front view schematic diagram of the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.Attached drawing of the embodiment of the present invention only for illustration, should not be understood as to the present invention
Limitation.To those skilled in the art, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
As shown in attached drawing 1 ~ 3, the present invention provides a kind of filter membrane leakage point detection device, and the filtration membrane elements 1 include filtering
Film 14, supporting guide plate 7 and bleeding point 4, filter membrane 14 to form hermetic unit 2 with supporting guide plate 7 by being welded to connect；It is described
Detection device includes the clamping of the air source 12, pressure regulator valve 10, pressure gauge 8 and the fixed filtration membrane elements 1 that are connected by pipeline 9
Device；One end of the pipeline 9 is connected to air source 12, and the other end is connected to the bleeding point 4, the shape of the clamping device with
The shape of the filtration membrane elements 1 is adapted.
The clamping device includes supporting rack 5, top board 13, lower platen and the locating piece that the filtration membrane elements 1 are clamped
3, locating piece 3 is fixed on supporting rack 5；Top board 13 is placed in parallel with lower platen is fixed on supporting rack 5, and forms slit 15,
As shown in Figure 2；The filtration membrane elements 1 are positioned in slit 15, as shown in Figure 2.
Big 4 ~ the 8mm of thickness of filtration membrane elements 1 described in 15 size ratio of the slit.
The side of the clamping device is not provided with locating piece 3, and the side that locating piece 3 is not arranged is the filtration membrane elements 1
Insert port, clamping device top view illustration as shown in Figure 2, it is seen that side is without locating piece 3.
Two locating pieces 3 are arranged in each side of the clamping device.
Rounded corner at the insert port.
It is wrapped to 1 center position of filtration membrane elements with the hermetic unit 2 in region contained by the top board 13 or lower platen
Network region coincides.
Using the present embodiment device, detection method includes the following steps：
S1. flat filtration membrane elements 1 to be measured are slowly positioned in clamping device slit 15, whether check filtration membrane elements 1
It clamps in place, is appropriate for attended operation using one and the suitable pipeline 9 of specification is connected to air source 12, pressure regulator valve 10 and pressure gauge 8；
S2. the numerical value for adjusting pressure regulator valve 10 to pressure gauge 8 is shown to 0.02 ~ 0.05Mpa；
S3. pipeline 9 is connected to bleeding point 4, hears that compressed air is slowly injected between filter membrane 14 and supporting guide plate 7；
S4. it is applied on 1 tow sides filter membrane 14 of filtration membrane elements tape edge Nian Jie with the surrounding of supporting guide plate 7 with suds
（Hermetic unit 2）, bubble generation is checked whether there is after stablizing 3min, may indicate that the filtration membrane elements 1 if bubble-free generates
Cemented side seam good airproof performance, marked with felt-tip pen at bubble if generating bubble generating；
S5. filtration membrane elements 1 are taken out and carry out next filtration membrane elements test, if the filtration membrane elements 1 taken out have bubble to generate
It can be bonded again.
Embodiment 2
As shown in attached drawing 2 ~ 4, the present invention provides a kind of filter membrane leakage point detection device, and the filtration membrane elements 1 include filtering
Film 14, supporting guide plate 7 and bleeding point 4, filter membrane 14 to form hermetic unit 2 with supporting guide plate 7 by being welded to connect；It is described
Detection device includes air source 12, pointer pressure gauge 11, pressure regulator valve 10, digital display manometer 8,6 and of shut-off valve connected by pipeline 9
The clamping device of the fixed filtration membrane elements 1；One end of the pipeline 9 is connected to air source 12, the other end and the bleeding point 4
Connection, the shape of the clamping device are adapted with the shape of the filtration membrane elements 1.
The clamping device includes supporting rack 5, top board 13, lower platen and the locating piece that the filtration membrane elements 1 are clamped
3, locating piece 3 is fixed on supporting rack 5；Top board 13 is placed in parallel with lower platen is fixed on supporting rack 5, and forms slit 15,
As shown in Figure 2；The filtration membrane elements 1 are positioned in slit 15, as shown in Figure 2.
Big 4 ~ the 8mm of thickness of filtration membrane elements 1 described in 15 size ratio of the slit.
The side of the clamping device is not provided with locating piece 3, and the side that locating piece 3 is not arranged is the filtration membrane elements 1
Insert port, clamping device top view illustration as shown in Figure 2, it is seen that side is without locating piece 3.
Two locating pieces 3 are arranged in each side of the clamping device.
Rounded corner at the insert port.
It is wrapped to 1 center position of filtration membrane elements with the hermetic unit 2 in region contained by the top board 13 or lower platen
Network region coincides.
Using the present embodiment device, detection method includes the following steps：
Whether the numerical value for S1. first looking at pointer pressure gauge 11 is much larger than the test pressure of filtration membrane elements 1（It is general to test positive pressure
0.02-0.05MPa）；
S2. flat filtration membrane elements 1 to be measured are slowly positioned in clamping device slit 15, whether check filtration membrane elements 1
It clamps in place, is appropriate for attended operation using one and the suitable pipeline 9 of specification is connected to 1 bleeding point 4 of filtration membrane elements and air source
12；
S3. shut-off valve 6 is closed, the numerical value for opening pressure regulator valve 10 adjustment air pressure to digital display manometer 8 is shown as 0.02 ~ 0.05Mpa,
Then shut-off valve 6 is slowly opened, hears that compressed air is slowly injected between filter membrane 14 and supporting guide plate 7；
S4. it is applied on 1 tow sides filter membrane 14 of filtration membrane elements tape edge Nian Jie with the surrounding of supporting guide plate 7 with suds
（Hermetic unit）, bubble generation is checked whether there is after stablizing 3min, may indicate that the filtration membrane elements 1 if bubble-free generates
Cemented side seam good airproof performance is marked at generation bubble with felt-tip pen if generating bubble；
S5. shut-off valve 6 is closed, filtration membrane elements 1 is taken out and carries out next filtration membrane elements test, if the filtration membrane elements 1 taken out
There is being bonded again for bubble generation.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of filter membrane leaks point detection device, the filtration membrane elements include filter membrane, supporting guide plate and bleeding point, mistake
The filter membrane hermetic unit formed be bonded with supporting guide plate；It is characterized in that, the detection device includes by piping connection
The clamping device of air source, pressure regulator valve, pressure gauge and the fixed filtration membrane elements；One end of the pipeline is connected to air source, separately
One end is connected to the bleeding point, and the shape of the clamping device is adapted with the shape of the filtration membrane elements.
2. filter membrane leaks point detection device according to claim 1, which is characterized in that the pressure regulator valve and the bleeding point
Between be connected with shut-off valve.
3. filter membrane leaks point detection device according to claim 1, which is characterized in that the pressure gauge is digital display pressure
Table.
4. filter membrane leaks point detection device according to claim 1, which is characterized in that the air source and the pressure regulator valve it
Between be connected with pointer pressure gauge.
5. filter membrane leaks point detection device according to claim 1, which is characterized in that the clamping device includes support
The locating piece of frame, top board, lower platen and the clamping filtration membrane elements, locating piece are fixed on supporting rack；Top board is under
Pressing plate, which is placed in parallel, is fixed on supporting rack, and forms slit, and the filtration membrane elements are positioned in slit.
6. filter membrane leaks point detection device according to claim 5, which is characterized in that the slit sizes are than the filtering
Big 4 ~ the 8mm of thickness of membrane component.
7. filter membrane leaks point detection device according to claim 5, which is characterized in that the side of the clamping device is not set
Locating piece is set, the side that locating piece is not arranged is the filtration membrane elements insert port.
8. filter membrane leaks point detection device according to claim 5, which is characterized in that the side of the clamping device is arranged
Two locating pieces.
9. filter membrane leaks point detection device according to claim 7, which is characterized in that rounded corner at the insert port.
10. leaking point detection device according to claim 1 and 5 filter membranes, which is characterized in that the top board or lower platen
Contained region coincides with the hermetic unit to filtration membrane elements center position institute's envelope region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095531.7A CN108452683A (en) | 2017-02-22 | 2017-02-22 | Filter membrane leaks point detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095531.7A CN108452683A (en) | 2017-02-22 | 2017-02-22 | Filter membrane leaks point detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108452683A true CN108452683A (en) | 2018-08-28 |
Family
ID=63222131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710095531.7A Pending CN108452683A (en) | 2017-02-22 | 2017-02-22 | Filter membrane leaks point detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108452683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584917A (en) * | 2018-10-18 | 2021-03-30 | 株式会社Lg化学 | Method of detecting defects in separation membrane elements and apparatus for detecting defects in separation membrane elements |
| CN112604502A (en) * | 2020-12-17 | 2021-04-06 | 德蓝水技术股份有限公司 | Fixing device of hollow fiber membrane component |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204544011U (en) * | 2015-02-27 | 2015-08-12 | 湖南澳维环保科技有限公司 | Flat filtration membrane elements checkout gear |
-
2017
- 2017-02-22 CN CN201710095531.7A patent/CN108452683A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204544011U (en) * | 2015-02-27 | 2015-08-12 | 湖南澳维环保科技有限公司 | Flat filtration membrane elements checkout gear |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584917A (en) * | 2018-10-18 | 2021-03-30 | 株式会社Lg化学 | Method of detecting defects in separation membrane elements and apparatus for detecting defects in separation membrane elements |
| CN112584917B (en) * | 2018-10-18 | 2023-02-17 | 株式会社Lg化学 | Method of detecting defects in separation membrane elements and apparatus for detecting defects in separation membrane elements |
| US11992810B2 (en) | 2018-10-18 | 2024-05-28 | Lg Chem, Ltd. | Method of detecting defects in separation membrane element and apparatus for detecting defects in separation membrane element |
| CN112604502A (en) * | 2020-12-17 | 2021-04-06 | 德蓝水技术股份有限公司 | Fixing device of hollow fiber membrane component |
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Application publication date: 20180828 |
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