CN100408144C - Filter-efficiency inspection system for efficient and super-efficient air filter - Google Patents
Filter-efficiency inspection system for efficient and super-efficient air filter Download PDFInfo
- Publication number
- CN100408144C CN100408144C CNB2006100143636A CN200610014363A CN100408144C CN 100408144 C CN100408144 C CN 100408144C CN B2006100143636 A CNB2006100143636 A CN B2006100143636A CN 200610014363 A CN200610014363 A CN 200610014363A CN 100408144 C CN100408144 C CN 100408144C
- Authority
- CN
- China
- Prior art keywords
- upstream
- air
- filter
- downstream
- efficient
- 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 - Fee Related
Links
Images
Abstract
An efficiency detecting system for the efficient and super-efficient air filter is disclosed. The primary filter, intermediate filter and blower are sequentially arranged in the air inlet pipeline in the blower room and connected to the blowing room containing efficient filter in it. Said blowing room is respectively connected to the first and the second upstream test channels, in which the dust tube, mixer, sealing valve, upstream sampling tube and static pressure ring, and the first and the second downstream test channels consisting of slide channel, perforated-plate flowmeter, downstream-sampling tube and air valve. Said both sampling tubes are respectively connected to upstream or downstream laser ion counter.
Description
Technical field
The present invention relates to the checkout equipment field, more particularly, relate to the efficiency inspection system of the used high efficiency particle air filter in industry toilets such as microelectronics, bioengineering, aerospace flight technology, medical treatment and pharmacy.
Background technology
According to scientific and technical literature report the most in recent years, domestic existing current sodium flame method (is derived from old British Standard, now abrogate), mist of oil method (being derived from the former Soviet Union) high efficiency particle air filter detection system, not only there is pollution to tested high efficiency particle air filter product, and pollution laboratory environment, high efficiency particle air filter by sodium ion or experiment usefulness contaminated by diesel oil can not be used for modern super large-scale integration workshop and high-precision laboratory fully.Particularly above-mentioned domestic current method of testing, do not satisfy the needs of modern science and technology from measuring accuracy, for example sodium flame method can only be tested 〉=high efficiency particle air filter of 0.3m efficient 99.99% following strainability, and its filter efficiency of ultra high efficiency air cleaner (ULPA) is 〉=0.1 μ, more than 99.999%.And present 8 " toilet's precision of above chip production main building has reached the ISO4 level above (being equivalent to more than 10 grades of the former inch standard of FS-209 〉=0.5 μ) of ISO/TC209 14644 standards; all adopt ULPA ultra high efficiency air cleaner; because domestic high efficiency particle air filter factory does not possess the high efficiency particulate air filter detection system of corresponding requirements; therefore can not produce the desired high-quality of industry, high-precision high efficiency particle air filters such as microelectronics, can only dependence on import.Not only expend large quantities of foreign exchanges, also seriously restricted the development of domestic cleaning apparatus factory.
World industry advanced country begins to carry out the filter detection technique is required very strict easy penetrating grain size (MPPS) detection method in recent years, to adapt to the quality requirements of high and new technology to high efficiency particulate air filter.This method still belongs to blank at home.International norm, document all have description to basic principle, the specification requirement of MPPS method, but concrete technical parameter; Design and calculation method, lectotype selection and coupling etc. belongs to secret category, and no physical resource can reference; In addition, technological concept that is obtained and data are only applicable to Experimental Study System usefulness, do not satisfy the detection of the many specifications of high efficiency particle air filter, many variety series product, also do not adapt to the needs that the suitability for industrialized production bulk article detects.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of efficient and ultra high efficiency air cleaner efficiency inspection system of pollution-free, high efficiency is provided.
Efficient and the ultra high efficiency air cleaner efficiency inspection system of the present invention, be achieved by following technical proposals, Ventilator Room is provided with the air intake pipeline, the air intake pipeline sets gradually roughing efficiency air filter, medium effeciency filter, blower fan, described air intake pipeline connection is provided with between the air-supply of high efficiency particulate air filter, connect the first and second upstream test access between air-supply respectively, set gradually dust tube, flow mixing device, airtight valve, sampled upstream pipe, static pressure ring in the test access of described upstream, described sampled upstream pipe connects diluter, upstream lasing ion counter successively; The adjacent first and second downstream test access that are provided with the first and second upstream test access, described downstream test access is made of the orifice flowmeter that sets gradually in slip path and the path, sampled downstream pipe, air-valve, described slip path one end is provided with air cylinder driven mechanism, and the other end is provided with slip static pressure ring; Described sampled downstream pipe connects downstream lasing ion counter.
The first and second upstream test access of the present invention connect the circulation bypass respectively, in the circulation bypass airtight valve are set.
Frequency converter of the present invention, Temperature Humidity Sensor, airtight valve, upstream lasing ion counter, the filter resistance differential pressure pickup, the orifice differential pressure sensor, downstream lasing ion counter, above-mentioned parts are connected with computer respectively.
The present invention has following beneficial effect:
1, domestic current detection method (sodium flame method, the mist of oil method) only can satisfy the requirement of common high efficiency particulate air filter filter efficiency accuracy of detection, promptly can reach 〉=0.3 μ, 99.99%, can not detect ultra high efficiency air cleaner (ULPA) at all, the strainability that MPPS efficiency inspection system of the present invention can satisfy various HEPA/ULPA (efficient/ultra high efficiency) air cleaner of easy penetrating grain size (0.1～0.2 μ) filter efficiency below 99.9995% detects, promote the technical grade of home products, adapt to the quality assurance requirements of high-tech enterprise, for import substitutes are layed foundation to the HEPA/ULPA product.
2, adopt DEHS (diethyl alcohol in the sixth of the twelve Earthly Branches decanedioic acid fat), DOS or PAL etc. are free from environmental pollution again for the MPPS method in test dirt source neither injures HEPA/ULLPA air cleaner product quality, refuse the present situation of sodium flame, mist of oil detection method to adapt to high-tech industry such as electronics because of the dirt source influence that is put to the test of high efficiency particle air filter product quality.
3, MPPS detection system of the present invention has realized intelligent, electromechanical integration, improved the detection time of work efficiency, every high efficiency particle air filter greatly, by about 15 minutes of traditional approach bring up to every about 3 minutes, and all testing result prints after computer for analysis, calculating and arrangement immediately, existing detection system is limited to detection mode and does not accomplish this point at all, also needs to calculate in addition the arrangement experimental result.Every cover MPPS detection system can satisfy produces 50000 HEPA/ULPA high efficiency particulate air filter factories per year, needs by the platform detection, can improve the confidence level of home products quality assurance greatly, answer the industry requirement of the contour section of electronics to make, the HEDA/ULPA high efficiency particle air filter detects and provides the needs of technical data by platform.
Description of drawings
Fig. 1 is a pipeline structure schematic diagram of the present invention;
Fig. 2 is signals collecting of the present invention and system's control schematic diagram;
Fig. 3 is a control procedure schematic diagram of the present invention;
Fig. 4 is a main control flow chart of the present invention;
Fig. 5 is the testing efficiency of air filter flow chart;
Fig. 6 is an air cleaner resistance measurement flow chart.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in Figure 1, Ventilator Room 41 is provided with the air intake pipeline, the air intake pipeline sets gradually roughing efficiency air filter 1, medium effeciency filter 2, blower fan 3, the air intake pipeline connects between the air-supply that high efficiency particulate air filter 5 is set 42, connect the first and second upstream test access between air-supply respectively, set gradually dust tube 8 and 9 in the first and second upstream test access, flow mixing device 11 and 12, airtight valve 14 and 15, sampled upstream pipe 16 and 17, static pressure ring 35 and 36, the adjacent first and second downstream test access that are provided with the first and second upstream test access, the first and second downstream test access are respectively by the orifice flowmeter 26 and 27 that sets gradually in slip path and the path, sampled downstream pipe 28 and 29, air- valve 31 and 32 constitutes, slip path one end is provided with air cylinder driven mechanism 37, and the other end is provided with slip static pressure ring 38.The first and second upstream test access connect circulation bypass 39 respectively, and airtight valve 13 is set in the circulation bypass.The first and second downstream test access connect between air-out 40 respectively.42 are provided with access door between air-supply.
Flow mixing device of the present invention is leafy flow-disturbing impeller; Airtight valve is pneumatic airtight butterfly valve.
The present invention selects for use the DEHS harmless to production environment (diethyl alcohol in the sixth of the twelve Earthly Branches decanedioic acid fat) to be detection system test dirt source, be equipped with the ATM225 powder producer, the peak value that the high concentration DEHS aerosol particle diameter that is produced distributes is in the easy penetrating grain size scope, to guarantee the total efficiency accuracy of detection of easy penetrating grain size.Be provided with the leafy flow mixing device of wind drive, reach the EN-1822 requirement to satisfy sampled downstream section granule density distribution consistency degree.
Use the present invention that tested high efficiency particle air filter is positioned between static pressure ring and the slip static pressure ring, by computer control cylinder driving mechanism, drive the slip passage portion, automatic airtight path also begins to detect immediately.
As shown in Figure 2, blower fan 3 connects frequency converters 4, Temperature Humidity Sensor 6 and 7 is set between air-supply, and dust tube 8 is connected powder producer 10 respectively with 9, and sampled upstream pipe 16 and 17 is connected diluter 18, upstream lasing ion counter 19 respectively successively; Tested high efficiency particle air filter 22 and 23 is provided with filter resistance differential pressure pickup 20 and 21 respectively; Orifice flowmeter 26 and 27 is provided with orifice differential pressure sensor 24 and 25 respectively; Sampled downstream pipe 28 is connected downstream lasing ion counter 30 with 29; Frequency converter 4, Temperature Humidity Sensor 6 and 7, airtight valve 13,14 and 15, upstream lasing ion counter 19, filter resistance differential pressure pickup 20 and 21, orifice differential pressure sensor 24 and 25, downstream lasing ion counter 30, above-mentioned parts are connected with computer 33 respectively, and computer 33 connects printer 34, and control procedure as shown in Figure 3.
The present invention detects data acquisition, processing, system's control, operating mode switching etc., and all testing is finished by computer control.The main control flow process is carried out test interface after system starts and is selected as shown in Figure 4, sets test parameter according to actual conditions, carries out test-types and selects (resistance measurement or efficiency test), data output after test is finished.The testing process of wherein testing efficiency of air filter as shown in Figure 5; The testing process of test air cleaner resistance as shown in Figure 6.
Sampled upstream of the present invention has disposed the granule density diluter and has been in normal sampled concentrations to guarantee the laser particle counter optical channel, has guaranteed that again sampled downstream has sufficiently high concentration simultaneously, to guarantee the filter efficiency measuring accuracy.
Detection system of the present invention is two measurement paths, adapts to the detection of different size high efficiency particulate air filter respectively, can control pneumatic airtight valve switched path by computer, detects air quantity and controls converter plant by computer, arbitrarily sets as required.
It is 200-3600m that detection system of the present invention can adapt to the nominal air delivery scope
3/ h pressure drop is the various HEPA/ULPA high efficiency particle air filter of 100～1000pa, and high-penetration particle diameter efficiency measurement precision can reach 99.9995%, and the Resistance Value precision can reach 0.5Pa.
Claims (3)
1. efficient and ultra high efficiency air cleaner efficiency inspection system, Ventilator Room is provided with the air intake pipeline, and the air intake pipeline sets gradually roughing efficiency air filter, medium effeciency filter, blower fan, it is characterized in that, described air intake pipeline connection is provided with between the air-supply of high efficiency particulate air filter, and blower fan connects frequency converter; Connect the first and second upstream test access between air-supply respectively, set gradually dust tube, flow mixing device, airtight valve, sampled upstream pipe, static pressure ring in the test access of described upstream, described sampled upstream pipe connects diluter, upstream lasing ion counter successively; The adjacent first and second downstream test access that are provided with the first and second upstream test access, described downstream test access is made of the orifice flowmeter that sets gradually in slip path and the path, sampled downstream pipe, air-valve, and orifice flowmeter connects the orifice plate differential pressure pickup; Described slip path one end is provided with air cylinder driven mechanism, and the other end is provided with slip static pressure ring; Between static pressure ring and the slip static pressure ring filter resistance differential pressure pickup is set; Described sampled downstream pipe connects downstream lasing ion counter.
2. efficient and ultra high efficiency air cleaner efficiency inspection system according to claim 1 is characterized in that the described first and second upstream test access connect the circulation bypass respectively, in the circulation bypass airtight valve are set.
3. efficient and ultra high efficiency air cleaner efficiency inspection system according to claim 1, it is characterized in that, frequency converter, Temperature Humidity Sensor, airtight valve, upstream lasing ion counter, the filter resistance differential pressure pickup, the orifice differential pressure sensor, downstream lasing ion counter, above-mentioned parts are connected with computer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100143636A CN100408144C (en) | 2006-06-16 | 2006-06-16 | Filter-efficiency inspection system for efficient and super-efficient air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100143636A CN100408144C (en) | 2006-06-16 | 2006-06-16 | Filter-efficiency inspection system for efficient and super-efficient air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1895732A CN1895732A (en) | 2007-01-17 |
| CN100408144C true CN100408144C (en) | 2008-08-06 |
Family
ID=37608464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100143636A Expired - Fee Related CN100408144C (en) | 2006-06-16 | 2006-06-16 | Filter-efficiency inspection system for efficient and super-efficient air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100408144C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607649A (en) * | 2012-03-28 | 2012-07-25 | 富泰净化科技(昆山)有限公司 | Performance tester for filter screen and FFU (fan filter unit) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093218B (en) * | 2007-07-27 | 2010-12-15 | 中国建筑科学研究院 | Large-particle-size aerosol generating method and device for air filter efficiency test |
| CN103134746A (en) * | 2011-11-23 | 2013-06-05 | 苏州宏瑞净化科技有限公司 | Double-flow particle counter |
| CN103505973A (en) * | 2012-06-26 | 2014-01-15 | 四川制药制剂有限公司 | System capable of automatically detecting cleanliness of medicine filling room |
| CN103143205A (en) * | 2012-11-22 | 2013-06-12 | 丹东东方测控技术有限公司 | Energy-saving efficient micro-power dust collector and method |
| CN103353606B (en) * | 2013-06-24 | 2016-02-10 | 中国核电工程有限公司 | Nuclear power plant's chimney gaseous effluent sample representation simulation test ventilation unit |
| CN103852398B (en) * | 2014-03-12 | 2017-01-04 | 上海夏普电器有限公司 | A kind of dust filter screen differential static pressure abatement detecting method based on temperature adjustmemt |
| CN108287127A (en) * | 2018-01-08 | 2018-07-17 | 佛山市顺德区阿波罗环保器材有限公司 | Air filter testing and analysis system |
| CN109164027A (en) * | 2018-08-23 | 2019-01-08 | 上海峰晟机械设备有限公司 | air filter performance test system |
| CN110487695B (en) * | 2019-07-08 | 2023-01-31 | 佛山市顺德区阿波罗环保器材有限公司 | Oil smoke filter core primary filtration performance detecting system |
| CN114324116A (en) * | 2022-01-06 | 2022-04-12 | 中车青岛四方车辆研究所有限公司 | Filter performance testing device and testing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203201A (en) * | 1991-12-20 | 1993-04-20 | Donaldson Company, Inc. | On-line web filtration efficiency test method |
| CN2634482Y (en) * | 2003-07-04 | 2004-08-18 | 天津大学 | Full serial air filter property detector |
-
2006
- 2006-06-16 CN CNB2006100143636A patent/CN100408144C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203201A (en) * | 1991-12-20 | 1993-04-20 | Donaldson Company, Inc. | On-line web filtration efficiency test method |
| CN2634482Y (en) * | 2003-07-04 | 2004-08-18 | 天津大学 | Full serial air filter property detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607649A (en) * | 2012-03-28 | 2012-07-25 | 富泰净化科技(昆山)有限公司 | Performance tester for filter screen and FFU (fan filter unit) |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1895732A (en) | 2007-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100408144C (en) | Filter-efficiency inspection system for efficient and super-efficient air filter | |
| CN100395533C (en) | Diluting and sampling system for particle from fixed combustion source emission | |
| CN106525520B (en) | Dilution multi-stage sampling device for flue gas mixing channel of fixed combustion source | |
| CN201314914Y (en) | Device for measuring exhaust pollutant from light automobile and engine thereof | |
| CN103499512B (en) | Air-pressure-adjustable performance testing device for air filtering material and application thereof | |
| US8241412B2 (en) | Filter inspection with a gas mixing apparatus | |
| CN103091134A (en) | Dilution sampling system and sampling method of fixed source particles and volatile organic compounds | |
| CN102252991A (en) | Ultraviolet differential flue gas concentration monitoring system through heat and moisture extraction process | |
| CN103592147B (en) | General ventilating air filter capability test macro | |
| CN105223046A (en) | Stationary source flue gas particles dilution method automatic constant speed acquisition method | |
| CN206020262U (en) | A kind of continuous on-line monitoring system of CEMS flue gases | |
| CN105223047A (en) | Stationary source flue gas particles dilution method automatic constant speed acquisition system | |
| CN101949788B (en) | Gas circuit system for measuring tail gas smoke intensity of diesel vehicle | |
| CN215727140U (en) | Novel CEMS flue gas multiple spot sampling device | |
| CN206038385U (en) | Stationary source volatile organic compounds sampling probe | |
| CN205538547U (en) | Engine exhaust part flows particulate matter measuring device | |
| CN205157267U (en) | Porous diluting device of smoke particulate | |
| CN203606155U (en) | Common ventilation air filter performance test system | |
| CN201795990U (en) | Air channel system for measuring smoke intensity of tail gas of diesel vehicle | |
| CN201423228Y (en) | Air supply purifying and drying device | |
| CN201404773Y (en) | Membrane module testing device | |
| CN205120442U (en) | Fixed source smoke particulate dilution method sampling system | |
| CN2922994Y (en) | Filtering efficiency detection system for efficient and super-efficient air filter | |
| CN205120434U (en) | Fixed source smoke particulate two -stage dilution method sampling system | |
| CN112629802A (en) | Wind tunnel experiment device and method for simulating influence of bulk coal combustion atmospheric environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20180616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |