CN102133496B - Dust filtering performance testing method and system of air filter for cab of vehicle on road - Google Patents
Dust filtering performance testing method and system of air filter for cab of vehicle on road Download PDFInfo
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- CN102133496B CN102133496B CN201010612872.5A CN201010612872A CN102133496B CN 102133496 B CN102133496 B CN 102133496B CN 201010612872 A CN201010612872 A CN 201010612872A CN 102133496 B CN102133496 B CN 102133496B
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Abstract
The invention relates to the technical field of air filter performance tests, in particular to a dust filtering performance testing method and system of an air filter for a cab of a vehicle on the road. The testing method comprises the following steps of: testing the filter element filtering efficiency, i.e. respectively testing dust particle concentration C1 before a test sample piece is installed and dust particle concentration C2 after the test sample piece is installed; and calculating the filtering efficiency E according to a formula (C1-C2)/C1*100%, namely E=(C1-C2)/C1*100%. The testing method provided by the invention is more scientific and reasonable and can be used for accurately reflecting the dust filtering performance of the air filter, and a testing device provided by the invention has high precision for a testing result, thereby being favorable for controlling the quality of the filter, ensuring that a consumer phases a qualified air filter, and also being beneficial to a producer to continuously improve the production process, the production technology and the quality of products.
Description
Technical field:
The present invention relates to air filter Performance Detection technical field, refer in particular to a kind of road vehicle-take advantage of chamber of driving air filter dust-filtering performance test methods and system.
Background technology:
At present, various vehicles take advantage of the air filter that the chamber of driving is used also to belong to nonstandard product, both there is no national standard, also not relevant professional standard, this just makes to take advantage of the product quality of the chamber of driving air filter in uncontrollable state, causes on market air filter product quality uneven, not only brings loss to consumer, also be unfavorable for the producer's R&D work, be unfavorable for the improvement of production technology, production technology and the raising of product quality simultaneously.
But relevant standard must be based upon conventionally carries out on the basis of science detection the performance indications of air filter.A most important performance of air filter is dust-filtering performance, and dust-filtering is also one of its most important purposes.At present, also there is no the science detection method of air filter dust-filtering performance, more there is no coherent detection equipment.
Summary of the invention:
One of object of the present invention is to provide a kind of road vehicle-take advantage of chamber of driving air filter dust-filtering performance test methods.
The present invention realizes the technical scheme that its object adopts: a kind of road vehicle-the take advantage of chamber of driving air filter dust-filtering performance test methods, described method of testing comprises filter element filtering efficiency test, respectively the powder dust particle concentration C 2 after powder dust particle concentration C 1 and installation testing exemplar before installation testing exemplar is measured, press formula (C1-C2)/C1*100% and calculate filter efficiency E, i.e. E=(C1-C2)/C1*100%.
In described filter efficiency test, by the geometric diameter x of powder dust particle, (μ of unit m) is divided into six rate ranges, be respectively 0.3≤x < 0.5,0.5≤x < 1.0,1.0≤x < 3.0,3.0≤x < 5.0,5.0≤x≤10.0, x > 10.0, the corresponding filter efficiency standard value range of each rate range.
In described method of testing, also comprise the test of filter core Pressure Drop, respectively the air pressure P2 after the air pressure P1 before installation testing exemplar and installation testing exemplar is measured, by the poor P of formula P1-P2 calculating pressure, i.e. P=P1-P2.
In described method of testing, also comprise the grey measurement examination of filter core storage, respectively the weight M1 that tests front test sample is measured with the weight M2 of the rear test sample of test, by the grey amount of formula M2-M1 calculating storage M, i.e. M=M2-M1.
Another object of the present invention is to provide a kind of test macro of implementing above-mentioned method of testing.
Described test macro comprises:
Circulating pipeline: be provided with the frequency conversion type axial flow blower for generation of wind-force in described circulating pipeline, be also provided with extraneous air intake valve at the inlet end of frequency conversion type axial flow blower; Described outside also has the test section for installation testing exemplar, is also provided with absolute filtration cotton in the downstream of test section;
Give ash system: comprise to send the ash feeding device of dust granules in circulating pipeline and is connected circulating pipeline and ash feeding device to grey pipeline, and circulating pipeline and be positioned at the upstream of described test section to grey entrance to grey pipeline junction;
Laser particle counter: the sample of laser particle counter is in the downstream of test section test sample, the corresponding powder dust particle concentration before measuring installation testing exemplar and after installation testing exemplar;
Pressure gauge: manometric sample is in the downstream of test section test sample, the air pressure before measuring installation testing exemplar and after installation testing exemplar;
Computer operating system: control respectively blower fan, give ash system, laser particle counter, manometric work and carry out corresponding data processing, generate test report.
Described extraneous air intake valve is also connected with air pretreatment equipment, and described air pretreatment equipment is also by described computer operating system control.
Also be provided with honeycomb in the test section of described circulating pipeline and between grey entrance.
The described grey pipeline of giving to ash system is also connected with dust granules dispersion treatment device.
Described laser particle counter is 6 passage laser particle counters.
Detection method of the present invention is science, reasonable more, more can reflect exactly the dust-filtering performance of air filter, and the result precision that checkout equipment of the present invention detects is high.Therefore be conducive to the control of cleaner quality, ensure that consumer buys qualified air filter, meanwhile, be also conducive to the producer and update production technology, production technology, improve the quality of products.
Brief description of the drawings:
Fig. 1 is air filter dust-filtering performance detecting system schematic diagram of the present invention.
Detailed description of the invention:
Road vehicle of the present invention-take advantage of is driven chamber air filter dust-filtering performance test methods and is comprised filter element filtering efficiency test, respectively the powder dust particle concentration C 2 after powder dust particle concentration C 1 and installation testing exemplar before installation testing exemplar is measured, press formula (C1-C2)/C1*100% and calculate filter efficiency (E), i.e. E=(C1-C2)/C1*100%.
In described filter efficiency test, by the geometric diameter x of powder dust particle, (μ of unit m) is divided into six rate ranges, be respectively 0.3≤x < 0.5,0.5≤x < 1.0,1.0≤x < 3.0,3.0≤x < 5.0,5.0≤x≤10.0, x > 10.0, i.e. the corresponding filter efficiency critical field of each rate range.
The present invention adopts stagewise filter efficiency method of testing, can simulate more careful, more realistically actual condition the filtration of air filter is tested, thereby obtain more accurate, rational test result; And detect time also can be used according to different road vehicles air filter select suitable rate range, air filter is detected.
In described method of testing, also comprise the test of filter core Pressure Drop, respectively the air pressure P2 after the air pressure P1 before installation testing exemplar and installation testing exemplar is measured, by the poor P of formula P1-P2 calculating pressure, i.e. P=P1-P2.
In described method of testing, also comprise the grey measurement examination of filter core storage, respectively the weight M1 that tests front test sample is measured with the weight M2 of the rear test sample of test, by the grey amount of formula M2-M1 calculating storage M, i.e. M=M2-M1.
Below in conjunction with concrete test macro, method of testing of the present invention is further illustrated.
As shown in Figure 1, test macro of the present invention comprises:
Circulating pipeline 1: be provided with the frequency conversion type axial flow blower 11 for generation of wind-force in described circulating pipeline 1, be also provided with extraneous air intake valve 12 at the inlet end of frequency conversion type axial flow blower 11; Described outside also has the test section 13 for installation testing exemplar a, is also provided with absolute filtration cotton 14 in the downstream of test section 13;
Give ash system 2: comprise to send the ash feeding device 21 of dust granules in circulating pipeline 1 and is connected circulating pipeline 1 and ash feeding device 21 to grey pipeline 22, and circulating pipeline 1 be positioned at the upstream of described test section 13 to grey pipeline 22 junctions to grey entrance 23;
Laser particle counter 3: the sample of laser particle counter 3 is in the downstream of test section 13 test samples, corresponding powder dust particle concentration before measuring installation testing exemplar and after installation testing exemplar, the laser particle counter 3 using in the present embodiment is 6 passage laser particle counters.
Pressure gauge 4: the sample of pressure gauge 4 is in the downstream of test section 13 test samples, the air pressure before measuring installation testing exemplar and after installation testing exemplar;
Computer operating system 5: control respectively frequency conversion type axial flow blower 11, to the work of ash system 2, laser particle counter 3, pressure gauge 4 with carry out corresponding data processing, generate test report.Be mainly manifested in: computer operating system 5 can be set respectively the parameters such as the rotating speed, controlled wind speed, intake of frequency conversion type axial flow blower 11; Set to parameters such as the geometric diameter sizes to ash amount, dust granules of ash system 2; Control the sampling of laser particle counter 3, pressure gauge 4 etc.; And record, process, store corresponding parameter and test data etc., generate test report.
Described extraneous air intake valve 12 is also connected with air pretreatment equipment 6, and described air pretreatment equipment 6 is also controlled by described computer operating system 5.Air pretreatment equipment 6 carries out pretreatment to the space entering in circulating pipeline 1, makes air dry, clean, to protect axial flow blower and conduit assembly, also ensures the accuracy of test result simultaneously.
Also be provided with honeycomb 15 in the test section 13 of described circulating pipeline 1 and between grey entrance 23, its objective is that to make the direction of motion of dust granules more regular, because being subject to the impact of pipeline camber, air-flow produces flow-disturbing, Particles Moving direction easily changes, therefore entering before test section, correct Particles Moving direction by honeycomb, to obtain test data more accurately.
The described grey pipeline 22 of giving to ash system 2 is also connected with dust granules dispersion treatment device 24, and the dust granules that enters circulating line is fully disperseed, and avoids dust granules to assemble.Dispersion treatment device 24 is main to be relied on to passing into high speed hot blast in grey pipeline 22, and dust granules is further disperseed.
Certainly, in the present invention, in test macro, be also provided with the auxiliary equipment such as flowmeter 7, flowmeter 7 is arranged on the downstream of absolute filtration cotton 14, and the flow that user can record according to it is set the running parameter of other equipment etc.
In test macro of the present invention, when the work such as frequency conversion type axial flow blower 11, ash feeding device 21, air pretreatment equipment 6, the larger equipment of noise is installed in outdoorly, and all the other equipment are arranged on indoor; Whole circulating pipeline adopts vertical, can reduce and take up room as far as possible, improves interior space utilization rate.
The course of work of test macro of the present invention is as follows: open intake valve 12, open frequency conversion type axial flow blower 11, air pretreatment equipment 6, make the interior Air Flow of circulating pipeline 1 produce air-flow; Then start to ash system 2, in circulating pipeline 1, give ash, dust granules, entering before circulating pipeline 1, through the dispersion treatment of dispersion treatment device 24, enters circulating pipeline 1 after further disperseing; Before dust granules enters test section 13, correct traffic direction through honeycomb 15, make dust granules pass through test section 13 along duct orientation; Now, computer operating system 5 is controlled particle calculator 3, pressure gauge 4 is measured, and obtains corresponding measured value; Air-flow and dust granules, by after test section 13, filter all dust granules by absolute filtration cotton 14, guarantee to be back to the air cleaning of frequency conversion type axial flow blower 11, so circulation.
While implementing method of testing of the present invention, can carry out in the following manner:
Parameter before test: can set corresponding test condition such as wind speed, to parameters such as ash amount, dust granules particle diameters after, once test, obtain respectively the front powder dust particle concentration C 1 of corresponding installation testing exemplar, the front air pressure P1 of installation testing exemplar etc., measurement result and corresponding test condition are stored in computer control system simultaneously; Change after test condition, again record corresponding parameter and measurement result, for subsequent use;
In the time carrying out actual test, setting after test condition, if used in former test of test condition, in fact the measurement result before test can be thought known, because it has been stored in computer system and has suffered, without the measurement before testing again; (certainly, the relevant parameter before also can again testing according to actual conditions is measured); Test sample a is arranged on after test section 13, start test macro by the test condition of setting, obtain respectively after corresponding installation testing exemplar air pressure P2 after powder dust particle concentration C 2, installation testing exemplar, then calculating respectively filter efficiency E and pressure differential P according to above-mentioned method of testing.
In method of testing of the present invention, filter core storage ash measures examination, test sample a adopts high-precision electronic weigher to carry out check weighing before being arranged on test section, obtain the front exemplar weight M1 of test, after test, take off test sample, again adopt high-precision electronic weigher to carry out check weighing, obtain the rear exemplar weight M2 of test, can calculate storage ash amount M by formula M=M2-M1.
Claims (1)
1. road vehicle-take advantage of the chamber of driving an air filter dust-filtering Performance Test System, is characterized in that: described test macro comprises:
Circulating pipeline (1): be provided with the frequency conversion type axial flow blower (11) for generation of wind-force in described circulating pipeline (1), be also provided with extraneous air intake valve (12) at the inlet end of frequency conversion type axial flow blower (11); Described circulating pipeline (1) has the test section (13) for installation testing exemplar, is also provided with absolute filtration cotton (14) in the downstream of test section (13); Whole circulating pipeline (1) adopts vertical;
Give ash system (2): comprise to send the ash feeding device (21) of dust granules in circulating pipeline (1) and is connected circulating pipeline (1) and ash feeding device (21) to grey pipeline (22), and circulating pipeline (1) be positioned at the upstream of described test section (13) to grey pipeline (22) junction to grey entrance (23);
Laser particle counter (3): the sample of laser particle counter (3) is in the downstream of test section (13) test sample, the corresponding powder dust particle concentration before measuring installation testing exemplar and after installation testing exemplar; Described laser particle counter (3) is 6 passage laser particle counters; Described powder dust particle is divided into six rate ranges by geometric diameter x, be respectively 0.3 μ m≤x < 0.5 μ m, 0.5 μ m≤x < 1.0 μ m, 1.0 μ m≤x < 3.0 μ m, 3.0 μ m≤x < 5.0 μ m, 5.0 μ m≤x≤10.0 μ m, x > 10.0 μ m, the corresponding filter efficiency standard value range of each rate range;
Pressure gauge (4): the sample of pressure gauge (4) is in the downstream of test section (13) test sample, the air pressure before measuring installation testing exemplar and after installation testing exemplar;
Computer operating system (5): control respectively blower fan (11), to the work of ash system (2), laser particle counter (3), pressure gauge (4) with carry out corresponding data processing, generate test report;
Also be provided with honeycomb (15) at the test section (13) of described circulating pipeline (1) and between grey entrance (23);
The described grey pipeline (22) of giving to ash system (2) is also connected with dust granules dispersion treatment device (24), and dispersion treatment device (24) is main to be relied on to passing into high speed hot blast in grey pipeline (22), and dust granules is further disperseed;
Described extraneous air intake valve (12) is also connected with air pretreatment equipment (6), and described air pretreatment equipment (6) is also controlled by described computer operating system (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010612872.5A CN102133496B (en) | 2010-12-29 | 2010-12-29 | Dust filtering performance testing method and system of air filter for cab of vehicle on road |
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| CN201010612872.5A CN102133496B (en) | 2010-12-29 | 2010-12-29 | Dust filtering performance testing method and system of air filter for cab of vehicle on road |
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| CN102133496A CN102133496A (en) | 2011-07-27 |
| CN102133496B true CN102133496B (en) | 2014-07-23 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102620947A (en) * | 2012-03-13 | 2012-08-01 | 南京航空航天大学 | Salt spray filter performance detecting system and method |
| CN104019965B (en) * | 2014-05-15 | 2016-09-07 | 中车青岛四方机车车辆股份有限公司 | Sand-proof method for testing performance and experimental rig |
| CN106226098A (en) * | 2015-06-02 | 2016-12-14 | 东莞市海莎过滤器有限公司 | A kind of air filter filter effect detection device and detection method thereof |
| CN106092622A (en) * | 2016-05-13 | 2016-11-09 | 薛景森 | Air purifier performance static demarcating method |
| CN106525473A (en) * | 2016-10-26 | 2017-03-22 | 华南理工大学 | Device and method for detecting performances of air conditioner filter of passenger car |
| 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 |
| 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 |
| CN114235666B (en) * | 2022-02-25 | 2022-05-06 | 徐州百艾电子科技有限公司 | System and method for detecting performance of filter element of purifier |
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Owner name: GAO YANG Free format text: FORMER OWNER: GAO YANG SHI BAIJUN Effective date: 20120511 |
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Effective date of registration: 20120511 Address after: 523000 R building, down Bridge Industrial Park, Dongguan, Guangdong, Dongcheng District Applicant after: Dongguan Haisha Filter Co., Ltd. Co-applicant after: Gao Yang Address before: 523000 R building, down Bridge Industrial Park, Dongguan, Guangdong, Dongcheng District Applicant before: Dongguan Haisha Filter Co., Ltd. Co-applicant before: Gao Yang Co-applicant before: Shi Baijun |
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