CN107238472A - A kind of accurate filter device for detecting sealability and method - Google Patents
A kind of accurate filter device for detecting sealability and method Download PDFInfo
- Publication number
- CN107238472A CN107238472A CN201710632319.XA CN201710632319A CN107238472A CN 107238472 A CN107238472 A CN 107238472A CN 201710632319 A CN201710632319 A CN 201710632319A CN 107238472 A CN107238472 A CN 107238472A
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- Prior art keywords
- filter
- cistern
- module
- accurate
- detecting sealability
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/10—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of accurate filter device for detecting sealability, including workbench, filter locating module, sealing filter module and detection module, the detection module includes：Inflation unit, for being inflated into accurate filter；Cistern, is arranged in the underface of the filter locating module；Driver element, for filter locating module to be immersed in cistern；Present invention also offers a kind of accurate filter method for conducting leak test；The accurate filter device for detecting sealability of the present invention, can quickly, simply and effectively detect the sealing of accurate filter, and overall structure is simple, easy to operate and use.
Description
Technical field
The present invention relates to the detection technique field of accurate filter performance, more particularly to a kind of accurate filter sealing inspection
Survey apparatus and method.
Background technology
It is to ensure the security of filter, validity, it is necessary to be detected accordingly to filter, filter is typically detected
Project is outward appearance, particulate pollution, rejection rate (i.e. strainability), leakage (i.e. sealing), flow velocity, tensile strength.Transom mistake
Filter compared with plain filter, venting quality more preferably, more security.This is due to that transom filter has one in upper lid position
Aperture, and ventilated membrane is welded with the aperture, this layer of ventilated membrane has ventilative no leakage function.This tunic must be with transom mistake
Lid bonding is firm on filter, just can guarantee that the security and validity of filter, therefore transom filter will carry out ventilated membrane
And the sealing propertytest of ventilated membrane welding.
In order to there is researcher to propose some devices, such as Publication No. with the sealing of effective detection filter
CN103645020A patent document discloses a kind of device for detecting sealability of filter, by precise pressure-reducing valve, magnetic valve,
SMC flow switches, threeway, precision pressure gauge, filter to be detected, twin shaft cylinder, pipeline, source of the gas composition.Precise pressure-reducing valve connects
Source of the gas is connect, precise pressure-reducing valve, magnetic valve and SMC flow switches are sequentially connected with pipeline, the SMC flow switches other end and threeway the
One interface is connected, threeway second interface connection precision pressure gauge, the interface connecting line one end of threeway the 3rd, the connection of the pipeline other end
Filter one end to be detected, the filter other end to be detected connects with twin shaft cylinders.Said apparatus both can detect common filtering
Device, can detect the sealing of transom filter again, and easy to detect, flexibility is high, and efficiency high, suitable batch is used.
In another example Publication No. CN 102944366B patent document, which is disclosed, is related to the detection of transom filter seal
Method, the sealing for detecting transom filter ventilated membrane, using principle of differential pressure, transom filter connection negative pressure device
It is completely immersed in afterwards in water for injection, starts negative pressure device and transom filter is pumped into negative pressure state, observe transom mistake
The transom position of filter, has water for injection to penetrate into and then illustrates that the transom filter seal is unqualified.The above method and existing
Technology is compared, easy to detect, efficiency high, detected member not damaged, and detection accuracy is higher, with more security, validity.
In the prior art, it is necessary to carry out air-leakage test by complicated instrument, or artificial judgment is needed, cause cost
The problem of high or inefficiency.Workpiece None- identified is still oozed to micro- using above method detection, caused in Clinical practice often
Have complaint.
The content of the invention
Simple in construction the invention provides a kind of accurate filter device for detecting sealability, automatic and effective detection is filtered
The sealing of device, efficiency high accuracy is good.
A kind of accurate filter device for detecting sealability, including workbench, filter locating module, sealing filter module
And detection module, it is characterised in that the detection module includes：
Inflation unit, for being inflated into accurate filter；
Cistern, is installed on the table；
Driver element, for filter locating module to be immersed in cistern.
In order to quickly and easily complete submergence, it is preferred that the cistern is being arranged in the filter locating module just
Lower section.Filter locating module can also be arranged in cistern, and driver element realizes water filtering by way of filling
Device locating module is submerged.
Said apparatus when in use, filter locating module be used for filter is installed, then seal filter module incited somebody to action
Each opening sealing of filter, then the driver element driving cistern and filter locating module relative motion, make filter
Locating module is immersed in cistern, inflation unit work, and gas is injected to the filter on filter locating module,
Retention time, observe the bubble in pond to judge the quality of filter air-tightness.
For the ease of manufacturing and installing, it is preferred that the sealing filter module includes：
Inlet seal plug, is arranged in the side of filter locating module and is driven by first straight line drive mechanism；
Liquid outlet seal plug, is arranged in the opposite side of filter locating module and is driven by second straight line drive mechanism；
Transom window seal plug, the surface for being arranged in filter locating module is driven by the 3rd straight line driving mechanism.
Straight line driving mechanism can be using power sources such as cylinders.
For the ease of convenient operation, it is preferred that the gas outlet of the inflation unit is inlaid in the inlet seal plug
Or in liquid outlet seal plug.It is that the gas outlet for completing inflation unit is installed when plug seals filter.
In order that the present invention is suitable for transom window position filter of different sizes, it is preferred that be provided with the workbench
Column, the middle part of the column is provided with the 4th straight line driving mechanism that horizontal direction drives, the 4th straight line driving mechanism
Clutch end is provided with the 3rd straight line driving mechanism driving.4th straight line driving mechanism can adjust transom window sealing
The horizontal level of plug.
Load and change for convenience filter, it is preferred that the filter locating module is removably mounted at the work
Make on platform.
Install and manufacture for convenience, it is preferred that the filter locating module includes：
Positioning seat, upper surface is provided with the locating slot for installing filter；
Alignment pin, provided with least two, is fixed on the positioning seat, and the workbench is provided with what is matched with alignment pin
Positioning hole.The filter locating module of said structure can be conveniently installed on workbench or dismantle.The locating slot can be with
Set multiple shapes in a row, corresponding, the sealing filter module is also equipped with corresponding multigroup.
In order to simplify structure, be easy to use, it is preferred that the driver element is elevating mechanism, the elevating mechanism it is dynamic
Power output end installs the cistern.By way of lifting cistern that filter is submerged in water, implementation is simple,
It is stable.
In order to improve automation, it is preferred that the detection module also includes bubble vision-based detection module, the bubble vision
Detection module is arranged on the top of the cistern, and the bubble vision-based detection module detects the bubble in cistern and produces inspection
Survey consequential signal.Visual identifying system uses high speed camera and treatment technology, and cell body is monitored without dead angle, bubble is carried out quick
Detecting, classification, display, alarm, system operational parameters are dynamically tracked, record detection history record.
The bubble observed by visual identifying system in pond is as follows come the fine or not step for judging filter air-tightness：
Visual identifying system shoots the image of filter surfaces；
And be compared the image of shooting and the reference picture without bubble (non-defective unit) filter surfaces of original storage,
Judge qualified if default difference size is met compared with reference picture, judge if default difference size is not met
It is unqualified.
In order to which the filter that air-tightness is bad can be rapidly found out, it is preferred that be provided with detection lamp, institute on the workbench
Detection lamp is stated by testing result signal control work.Detection lamp is set to be easy to distinguish non-defective unit and defective products.
Workbench includes：Base, is fixed on the mounting bracket of base top, fixed seat and water-stop sheet 104, elevating mechanism is fixed
In the bottom of mounting bracket, elevating mechanism uses cylinder, cistern be arranged in mounting bracket and with the clutch end of elevating mechanism
It is connected up to the purpose of lifting.Fixed seat is fixedly connected across above cistern and with mounting bracket, and water-stop sheet is consolidated with fixed seat
Fixed connection, water-stop sheet periphery, which matches with cistern inwall and had between the two, is also distributed with multiple water excessively on gap, water-stop sheet
Hole.Water-stop sheet can not only block debris, and can be during storage box rises, gap of the liquid from water-stop sheet periphery
It is difficult to form bubble on surface and water hole passes through, after liquid perturbation, does not interfere with follow-up detection.
Present invention also offers a kind of accurate filter method for conducting leak test, above-mentioned accurate filter sealing is used
Detection means, comprises the following steps：
(1) filter is arranged in filter locating module and realizes positioning；
(2) sealing filter module seals the inlet, liquid outlet and transom window of filter；
(3) driver element makes the water logging in cistern not have filter；
(4) inflation unit works and inflated into filter, the retention time；
(5) whether there is bubble generation outside the housing of detection filter, complete sealing propertytest.
In order to improve the integrality of detection, detection efficiency is improved, it is preferred that in step (2), in addition to detection filter
Whether exhaust membrane has stifled or broken, sealing inlet and liquid outlet, inflation preset time in inlet, the gas at detection exhaust membrane
Flow, judges that exhaust membrane and exhaust membrane weld break an ancient egg-shaped, holed wind instrument if threshold value is exceeded, less than threshold value then exhaust membrane and exhaust membrane welding
Place is blocked.
In order to improve the integrality of detection, detection efficiency is improved, it is preferred that also including detecting whether the liquid film of filter has
Leak or half is stifled, sealing inlet, liquid outlet and exhaust outlet inflate predetermined pressure, then open the pressure inside liquid outlet, survey
Damage situation, too fast compared with threshold value to be judged as that liquid film is leaked, excessively slow compared with threshold value is then that liquid outlet half is stifled.
Beneficial effects of the present invention：
The accurate filter device for detecting sealability and method of the present invention, can quickly, simply and effectively detect essence
The sealing of close filter, and overall structure is simple, it is easy to operate and use.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the accurate filter device for detecting sealability of the present invention.
Fig. 2 is the structural representation of the accurate filter device for detecting sealability of the present invention.
Fig. 3 is Fig. 2 left view.
Fig. 4 is the enlarged diagram of part A in Fig. 1.
Fig. 5 is the filter locating module of the present invention and the cooperation schematic diagram of workbench.
Embodiment
As shown in Figures 1 to 3, the accurate filter device for detecting sealability of the present embodiment includes：Workbench 1, cistern 2,
Filter locating module 3, column 4, the first cylinder 5 and inlet seal plug 6, the second cylinder 7 and liquid outlet seal plug 8,
3rd cylinder 9 and transom window seal plug 10, the 4th drive cylinder 11, elevating mechanism 12 and bubble vision-based detection module.
Workbench 1 includes：Base 101, is fixed on the mounting bracket 102 of base top, fixed seat 103 and water-stop sheet 104, rises
Descending mechanism 12 is fixed on the bottom of mounting bracket 102, and elevating mechanism 12 uses cylinder, cistern 2 be arranged in mounting bracket 102 and with
The clutch end of elevating mechanism 12 is connected up to the purpose of lifting.Fixed seat 103 is across in the top of cistern 2 and and mounting bracket
102 are fixedly connected, and water-stop sheet 104 is fixedly connected with fixed seat 103, and the periphery of water-stop sheet 104 is matched and both with the inwall of cistern 2
Between there is gap, multiple water holes 105 are also distributed with water-stop sheet 104.
Filter locating module 3 includes：Positioning seat 301, upper surface is provided with 8 locating slots 302 for installing filter；Positioning
Pin 303, provided with two lower surfaces for being fixed on positioning seat 301, fixed seat 103 is provided with the positioning hole matched with alignment pin 303
106, positioning hole 106 is provided with the buffer spring 107 abutted with the lower surface of positioning seat 301.Correspondence is fixed with water-stop sheet 104 fixed
The first cylinder 5 and the cylinder 7 of inlet seal plug 6 and second and liquid outlet seal plug 8 of the position quantity of groove 302 arrangement.Enter
Appendix is embedded with liquid mouthful seal plug 6, appendix is connected with inflation unit and (is not drawn into figure).
Column 4 is fixed on workbench 1, and the 4th drive cylinder 11 is arranged on column 4, and output end is fixedly connected with fixation
The 3rd cylinder 9 and transom window seal plug 10 of correspondence locating slot 302 quantity arrangement are installed in plate, fixed plate.
The outside of mounting bracket 102 is additionally provided with detection lamp box 13, and the top of detection lamp box 13 is additionally provided with the correspondence quantity of locating slot 302
The detection lamp group 1301 of arrangement, every group of lamp is provided with two, represents bad or excellent respectively.
Bubble vision-based detection module (being not drawn into figure) is arranged on the top of cistern 2, the detection of bubble vision-based detection module
Bubble in cistern simultaneously produces testing result signal.Detect lamp group 1301 by testing result signal control work.
The accurate filter device for detecting sealability course of work of the present embodiment is as follows：
(1) filter 14 is arranged in locating slot 302, the alignment pin 303 of filter locating module 3 is then inserted fixed
Realize positioning in position hole 106；
(2) first cylinders 5 and inlet seal plug 6, the second cylinder 7 and the cylinder 9 of liquid outlet seal plug 8 and the 3rd
Worked with transom window seal plug 10, three mouths of filter 14 are sealed；
(3) driving of elevating mechanism 12 cistern 2 rises, and the water logging in cistern 2 is not had filter 14；
(4) inflation unit works and inflated into filter 14, the retention time；
(5) bubble vision-based detection module starts, and detects whether bubble, gassiness housing is submerged in water, there is any
Leakage phenomenon, gas can all produce bubble in water, even extremely ooze slowly, not have only because expansion is formd on housing
The detection of the vesicle floated.
In addition to being detected above by bubble, between being detected with bubble and afterwards before to exhaust membrane and liquid film
Detected, be provided with gas flow testing instrument (being not drawn into figure) in the position of the exhaust membrane of filter, liquid is gone out in filter
Crushing tester (being not drawn into figure) is provided with mouthful：
1st, the first cylinder 5 is first acted with the second cylinder 7, and now can first ventilate preset time (such as 0.5 second) in inlet,
The state of exhaust membrane is now detected, can judge whether exhaust membrane has stifled or broken phenomenon by gas flow；
2nd, the first cylinder 5, the second cylinder 7 and the 3rd cylinder 9 work, sealing inlet and liquid outlet, inlet, interior inflation
Then preset time opens the crushing situation inside liquid outlet, survey to predetermined pressure, too fast compared with threshold value to be judged as liquid film
Leakage, excessively slow compared with threshold value is then that liquid outlet half is stifled.
The defective products judged by this three times, and control detection lamp group 1301 to work, detection is completed, product is taken away, examined
Survey is finished.
Claims (10)
1. a kind of accurate filter device for detecting sealability, including workbench, filter locating module, sealing filter module with
And detection module, it is characterised in that the detection module includes：
Inflation unit, for being inflated into accurate filter；
Cistern, is installed on the table；
Driver element, for filter locating module to be immersed in cistern.
2. accurate filter device for detecting sealability as claimed in claim 1, it is characterised in that the cistern is arranged in institute
State the underface of filter locating module.
3. accurate filter device for detecting sealability as claimed in claim 1, it is characterised in that the sealing filter module
Including：
Inlet seal plug, is arranged in the side of filter locating module and is driven by first straight line drive mechanism；
Liquid outlet seal plug, is arranged in the opposite side of filter locating module and is driven by second straight line drive mechanism；
Transom window seal plug, the surface for being arranged in filter locating module is driven by the 3rd straight line driving mechanism.
4. accurate filter device for detecting sealability as claimed in claim 2, it is characterised in that the outlet of the inflation unit
Mouth is inlaid in the inlet seal plug or/and liquid outlet seal plug.
5. accurate filter device for detecting sealability as claimed in claim 2, it is characterised in that be provided with the workbench
Column, the middle part of the column is provided with the 4th straight line driving mechanism that horizontal direction drives, the 4th straight line driving mechanism
Clutch end is provided with the 3rd straight line driving mechanism driving.
6. accurate filter device for detecting sealability as claimed in claim 1, it is characterised in that the driver element is lifting
Mechanism, the clutch end of the elevating mechanism installs the cistern.
7. accurate filter device for detecting sealability as claimed in claim 1, it is characterised in that the detection module also includes
Bubble vision-based detection module, the bubble vision-based detection module is arranged on the top of the cistern, the bubble vision-based detection
Module detects the bubble in cistern and produces testing result signal.
8. a kind of accurate filter method for conducting leak test, uses the accurate mistake as described in claim 1~7 any claim
Filter device for detecting sealability, comprises the following steps：
(1) filter is arranged in filter locating module and realizes positioning；
(2) sealing filter module seals the inlet, liquid outlet and transom window of filter；
(3) driver element makes the water logging in cistern not have filter；
(4) inflation unit works and inflated into filter, the retention time；
(5) whether there is bubble generation outside the housing of detection filter, complete sealing propertytest.
9. accurate filter method for conducting leak test as claimed in claim 8, it is characterised in that in step (2), in addition to inspection
Survey whether the exhaust membrane of filter has stifled or broken, sealing inlet and liquid outlet, the interior inflation preset time of inlet, detection exhaust
Gas flow at film, judges that exhaust membrane and exhaust membrane weld break an ancient egg-shaped, holed wind instrument if threshold value is exceeded, less than threshold value then exhaust membrane and
Exhaust membrane weld is blocked.
10. accurate filter method for conducting leak test as claimed in claim 8, it is characterised in that in step (2), in addition to
Whether the liquid film of detection filter has leakage or half stifled, sealing inlet, liquid outlet and exhaust outlet, inflates predetermined pressure, so
After open liquid outlet, survey internal crushing situation, it is too fast compared with threshold value to be judged as liquid film leakage, be then slowly excessively compared with threshold value
Liquid outlet half is stifled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632319.XA CN107238472A (en) | 2017-07-28 | 2017-07-28 | A kind of accurate filter device for detecting sealability and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632319.XA CN107238472A (en) | 2017-07-28 | 2017-07-28 | A kind of accurate filter device for detecting sealability and method |
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| CN107238472A true CN107238472A (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710632319.XA Pending CN107238472A (en) | 2017-07-28 | 2017-07-28 | A kind of accurate filter device for detecting sealability and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303218A (en) * | 2018-02-28 | 2018-07-20 | 江苏苏云医疗器材有限公司 | A kind of precision liquid medicine filter exhaust film detecting device and detection method |
| CN110879195A (en) * | 2018-09-05 | 2020-03-13 | 宁波方太厨具有限公司 | Detection device and detection method for distinguishing inner core of filter element |
| CN110879118A (en) * | 2018-09-05 | 2020-03-13 | 宁波方太厨具有限公司 | Device and method for automatically detecting sealing performance of filter element |
| CN111879476A (en) * | 2020-09-04 | 2020-11-03 | 重庆力东机电有限公司 | Quick check out test set of gas tightness |
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| CN105588687A (en) * | 2016-03-10 | 2016-05-18 | 柳州日高过滤器有限责任公司 | Hydraulic filter assembly gas adjustment tool |
| CN205898384U (en) * | 2016-06-30 | 2017-01-18 | 杭州余杭獐山钢瓶有限公司 | Steel bottle gas tightness detection device |
| CN206353070U (en) * | 2016-12-29 | 2017-07-25 | 珠海亿泰科技有限公司 | A kind of filter air tightness detection apparatus |
| CN207636251U (en) * | 2017-07-28 | 2018-07-20 | 杭州安诺过滤器材有限公司 | A kind of accurate filter device for detecting sealability |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203965099U (en) * | 2014-07-07 | 2014-11-26 | 海南通用康力制药有限公司 | Integral filter integrity detection instrument |
| CN105588687A (en) * | 2016-03-10 | 2016-05-18 | 柳州日高过滤器有限责任公司 | Hydraulic filter assembly gas adjustment tool |
| CN205898384U (en) * | 2016-06-30 | 2017-01-18 | 杭州余杭獐山钢瓶有限公司 | Steel bottle gas tightness detection device |
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| CN207636251U (en) * | 2017-07-28 | 2018-07-20 | 杭州安诺过滤器材有限公司 | A kind of accurate filter device for detecting sealability |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303218A (en) * | 2018-02-28 | 2018-07-20 | 江苏苏云医疗器材有限公司 | A kind of precision liquid medicine filter exhaust film detecting device and detection method |
| CN110879195A (en) * | 2018-09-05 | 2020-03-13 | 宁波方太厨具有限公司 | Detection device and detection method for distinguishing inner core of filter element |
| CN110879118A (en) * | 2018-09-05 | 2020-03-13 | 宁波方太厨具有限公司 | Device and method for automatically detecting sealing performance of filter element |
| CN110879195B (en) * | 2018-09-05 | 2021-11-12 | 宁波方太厨具有限公司 | Detection method for distinguishing inner core of filter element |
| CN111879476A (en) * | 2020-09-04 | 2020-11-03 | 重庆力东机电有限公司 | Quick check out test set of gas tightness |
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