CN105758760A - Measuring method for filter element water resistance test - Google Patents
Measuring method for filter element water resistance test Download PDFInfo
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- CN105758760A CN105758760A CN201410805704.6A CN201410805704A CN105758760A CN 105758760 A CN105758760 A CN 105758760A CN 201410805704 A CN201410805704 A CN 201410805704A CN 105758760 A CN105758760 A CN 105758760A
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- filter element
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Abstract
The invention relates to a measuring method for a filter element water resistance test, comprising the steps: measuring related dimensional parameters of a filter element, and calculating effective filter area of the filter element; carrying out a resistance test and taking out and weighing the filter element; placing the filter element in an air filter and weighing the filter element; weighing a water collection kettle; weighing a water sprayer; mounting flow-stabilizing pipes and pressure-measuring pipes with corresponding dimensional specifications at gas inlet and outlet of the air filter according to the standard ISO5011; setting rated flow and termination conditions according to test requirements; after testing, weighing the water collection kettle and a housing with the filter element; sucking out with 1.2 times of the rated flow until resistance is stable, carrying out resistance test P2, taking out and weighing the filter element, calculating water bearing capacity, a difference of resistances before and after, water bearing capacity per unit area of the filter element, and filtering efficiency.Compared with the prior art, the measuring method has the advantages of results accuracy, convenience of operation, and convenience and visualization of results evaluation.
Description
Technical field
The present invention relates to a kind of measuring method, especially relate to the measuring method of a kind of filter element water-resistance test.
Background technology
The water repelling property of air filter is primarily referred to as vehicle and is passing through road surface of paddling, rainy day or some extreme moist environment, and filter element keeps the ability of strainability.Therefore, the ability of filter element filtering performance becomes one of judge air filter quality standard.Wherein, the water-resistance of filter element is one of factor judging filter element filtering performance, by researching and analysing of filter element water-resistance is suffered from active and effective effect to filter material exploitation and product structure design etc..
The water-resistance test of current filter element mainly includes infusion method and spraying.Wherein, infusion method adopts soaks front and back survey resistance difference, there is certain diversity with real working condition；Conventional water spray rule is constantly to add water in pumping process, observes filter element situation after reaching certain condition, and it is for the not concrete judgment criteria quantified of filter element water-resistance quality.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of measurement result accurately, convenient operation, the convenient test of filter element water-resistance intuitively of evaluation of result measuring method.
The purpose of the present invention can be achieved through the following technical solutions:
The measuring method of a kind of filter element water-resistance test, adopts following steps:
1) measure the relative dimensions parameter of filter element, calculate its effective filtration area S；
2) it is resistance test P1, filter element is weighed after taking out, and records numerical value M1；
3) filter element is put in air filter weigh, be designated as Mf；
4) kettle that will catchment is weighed, and is designated as Mp1；
5) water jet is weighed, M2；
6) install barretter and the pressure-measuring pipe of corresponding size specification according to ISO5011 standard at air filter inlet, outlet place, the distance of water jet front end and air inlet barretter is caliber, i.e. R；
7) metered flow and end condition are set according to test requirements document；
8) after off-test, housing to the kettle that catchments, with filter element is weighed, and is designated as mp1、mf:
9) drain to resistance steady with the 1.2 of metered flow times, then be resistance test P2, filter element is weighed after taking out, and records numerical value m1；
10) water jet is weighed, m2；
11) accordingly result parameter is calculated by below equation:
Water capacity=mf-Mf
Front and back resistance difference=P2-P1
Filter element unit are water capacity=(m1-M1)/S
Filter efficiency=1-(mp1-Mp1)/(m2-M2)。
Step 4) in, if there is dust discharge valve, then need to add one and catchment kettle, weigh and be designated as Mp2。
Step 8) in, after off-test, the housing to the kettle that catchments, with filter element is weighed, and is designated as mp1、mp2、mf。
Step 11) also calculate pre-filtering rate=(mp2-Mp2)/(m2-M2)。
Step 7) ask that to set metered flow and end condition as: car as resistance rising 20mbar, truck or industry filter be resistance rising 40mbar.
Above-mentioned measuring method, at 23 ± 5 DEG C, completes under 55% ± 15%RH environment.
Step 1) in the relative dimensions parameter of filter element include filter element effective length, width, height and broken number.
Compared with prior art, the invention have the advantages that
1, compared with infusion method, being more consistent with real working condition, test result has more representativeness and accuracy；
2, compared with conventional spraying, by parameters such as resistance difference before and after quantifying, filter element weight loss values and unit of account area water capacities, it is possible to the more directly quality of evaluation result；
3, device is simple, it is easy to operation, testing expense relative moderate.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
The measuring method of a kind of filter element water-resistance test, it is necessary at 23 ± 5 DEG C, complete under 55% ± 15%RH environment, adopts following steps:
1) measure the relative dimensions parameter of filter element, including filter element effective length, width, height and broken number, calculate its effective filtration area S；
2) it is resistance test P1, filter element is weighed after taking out, and records numerical value M1；
3) filter element is put in air filter weigh, be designated as Mf；
4) kettle that will catchment is weighed, and is designated as Mp1；
5) water jet is weighed, M2；
6) install barretter and the pressure-measuring pipe of corresponding size specification according to ISO5011 standard at air filter inlet, outlet place, the distance of water jet front end and air inlet barretter is caliber, i.e. R；
7) setting metered flow and end condition according to test requirements document, in general, car is resistance rising 20mbar, and truck or industry filter are resistance rising 40mbar；
8) after off-test, housing to the kettle that catchments, with filter element is weighed, and is designated as mp1、mf:
9) drain to resistance steady with the 1.2 of metered flow times, then be resistance test P2, filter element is weighed after taking out, and records numerical value m1；
10) water jet is weighed, m2；
11) accordingly result parameter is calculated by below equation:
Water capacity=mf-Mf
Front and back resistance difference=P2-P1
Filter element unit are water capacity=(m1-M1)/S
Filter efficiency=1-(mp1-Mp1)/(m2-M2)。
Embodiment 2
The measuring method of a kind of filter element water-resistance test, it is necessary at 23 ± 5 DEG C, complete under 55% ± 15%RH environment, adopts following steps:
1) measure the relative dimensions parameter of filter element, including filter element effective length, width, height and broken number, calculate its effective filtration area S；
2) it is resistance test P1, filter element is weighed after taking out, and records numerical value M1；
3) filter element is put in air filter weigh, be designated as Mf；
4) kettle that will catchment is weighed, and is designated as Mp1, owing to there is dust discharge valve, it is necessary to additionally increase the kettle that catchments, weigh and be designated as Mp2；
5) water jet is weighed, M2；
6) install barretter and the pressure-measuring pipe of corresponding size specification according to ISO5011 standard at air filter inlet, outlet place, the distance of water jet front end and air inlet barretter is caliber, i.e. R；
7) setting metered flow and end condition according to test requirements document, in general, car is resistance rising 20mbar, and truck or industry filter are resistance rising 40mbar；
8) after off-test, housing to the kettle that catchments, with filter element is weighed, and is designated as mp1、mp2、mf:
9) drain to resistance steady with the 1.2 of metered flow times, then be resistance test P2, filter element is weighed after taking out, and records numerical value m1；
10) water jet is weighed, m2；
11) accordingly result parameter is calculated by below equation:
Water capacity=mf-Mf
Front and back resistance difference=P2-P1
Filter element unit are water capacity=(m1-M1)/S
Filter efficiency=1-(mp1-Mp1)/(m2-M2)
Pre-filtering rate=(mp2-Mp2)/(m2-M2)。
Claims (7)
1. the measuring method of a filter element water-resistance test, it is characterised in that the method adopts following steps:
1) measure the relative dimensions parameter of filter element, calculate its effective filtration area S；
2) it is resistance test P1, filter element is weighed after taking out, and records numerical value M1；
3) filter element is put in air filter weigh, be designated as Mf；
4) kettle that will catchment is weighed, and is designated as Mp1；
5) water jet is weighed, M2；
6) install barretter and the pressure-measuring pipe of corresponding size specification according to ISO5011 standard at air filter inlet, outlet place, the distance of water jet front end and air inlet barretter is caliber, i.e. R；
7) metered flow and end condition are set according to test requirements document；
8) after off-test, housing to the kettle that catchments, with filter element is weighed, and is designated as mp1、mf:
9) drain to resistance steady with the 1.2 of metered flow times, then be resistance test P2, filter element is weighed after taking out, and records numerical value m1；
10) water jet is weighed, m2；
11) accordingly result parameter is calculated by below equation:
Water capacity=mf-Mf
Front and back resistance difference=P2-P1
Filter element unit are water capacity=(m1-M1)/S
Filter efficiency=1-(mp1-Mp1)/(m2-M2)。
2. the measuring method of a kind of filter element water-resistance according to claim 1 test, it is characterised in that step 4) in, if there is dust discharge valve, then need to add one and catchment kettle, weigh and be designated as Mp2。
3. the measuring method of a kind of filter element water-resistance according to claim 2 test, it is characterised in that step 8) in, after off-test, the housing to the kettle that catchments, with filter element is weighed, and is designated as mp1、mp2、mf。
4. the measuring method of a kind of filter element water-resistance according to claim 3 test, it is characterised in that step 11) also calculate pre-filtering rate=(mp2-Mp2)/(m2-M2)。
5. the measuring method of a kind of filter element water-resistance test according to any one of claim 1-4, it is characterised in that step 7) ask that to set metered flow and end condition as: car as resistance rising 20mbar, truck or industry filter be resistance rising 40mbar.
6. the measuring method of a kind of filter element water-resistance test according to any one of claim 1-4, it is characterised in that above-mentioned measuring method, at 23 ± 5 DEG C, completes under 55% ± 15%RH environment.
7. the measuring method of a kind of filter element water-resistance test according to any one of claim 1-4, it is characterised in that step 1) in the relative dimensions parameter of filter element include filter element effective length, width, height and broken number.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410805704.6A CN105758760B (en) | 2014-12-18 | 2014-12-18 | A kind of measuring method of filter core water-resistance experiment |
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| CN201410805704.6A CN105758760B (en) | 2014-12-18 | 2014-12-18 | A kind of measuring method of filter core water-resistance experiment |
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| CN105758760A true CN105758760A (en) | 2016-07-13 |
| CN105758760B CN105758760B (en) | 2018-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551478A (en) * | 2020-05-13 | 2020-08-18 | 安泰科技股份有限公司 | Method for evaluating filtering precision and efficiency of submicron-grade liquid-solid separation system |
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2014
- 2014-12-18 CN CN201410805704.6A patent/CN105758760B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07209147A (en) * | 1994-01-14 | 1995-08-11 | Fuji Electric Co Ltd | Gas adsorption agent cartridge case |
| JPH09145583A (en) * | 1995-11-14 | 1997-06-06 | Dev Center For Biotechnol | Piezoelectric sensor chip of cartridge-form |
| CN101294873A (en) * | 2007-04-25 | 2008-10-29 | 中国科学院生态环境研究中心 | Atmospheric sampling method and device using motor vehicle engine intake system as power |
| CN202994622U (en) * | 2012-12-26 | 2013-06-12 | 唐纳森(无锡)过滤器有限公司 | Device for rapidly detecting filter paper of air filter |
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| 丁一 等: "陶瓷滤芯过滤阻力试验研究", 《净水技术》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551478A (en) * | 2020-05-13 | 2020-08-18 | 安泰科技股份有限公司 | Method for evaluating filtering precision and efficiency of submicron-grade liquid-solid separation system |
| CN111551478B (en) * | 2020-05-13 | 2023-01-10 | 安泰科技股份有限公司 | Method for evaluating filtering precision and efficiency of submicron-grade liquid-solid separation system |
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| CN105758760B (en) | 2018-04-17 |
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