CN103852219A - Inspection method of air filter - Google Patents
Inspection method of air filter Download PDFInfo
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- CN103852219A CN103852219A CN201310070738.0A CN201310070738A CN103852219A CN 103852219 A CN103852219 A CN 103852219A CN 201310070738 A CN201310070738 A CN 201310070738A CN 103852219 A CN103852219 A CN 103852219A
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- chamber
- air cleaner
- asepwirator pump
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- dust
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Abstract
The invention relates to an inspection method for quality inspection of an air filter. The inspection method of the air filter includes the steps that firstly, an air inlet of the air filter to be detected is made to be located in a test box, and an air outlet is made to be communicated with an air inlet of a getter pump located outside the test box; secondly, the test box is sealed; thirdly, environmental parameters of the test box are adjusted to environmental parameters for testing; fourthly, the getter pump is switched on, air in the test box is forced to flow through the air filter to be detected; fifthly, the getter pump is switched off, and the dust amount of one side, towards a shell, of a filter element serves as a judgment basis of the sealing degree of the filter element and the shell. According to the method, the sealing degree of the filter element and the shell can be effectively detected, the method is simple, and the result is reliable.
Description
Technical field
The present invention relates to quality inspection method, be specifically related to the method for inspection for air cleaner quality inspection.
Background technology
Air cleaner (Air Cleaner) is mainly used in the field such as pneumatic machinery, diesel machine, effect is for these plant equipment provide clean air, in case these plant equipment suck the probability that increases abrasion with the air of impurity particle and damage at work.Asepwirator pump is wanted a large amount of air of inspiration in the course of the work, if the dust that air, without filtering, suspends in air is inhaled in cylinder, and will accelerating piston group and the wearing and tearing of cylinder.Larger particle enters between piston and cylinder, can cause serious " scuffing of cylinder bore " phenomenon, and this is particularly serious in dry rocky working environment.Air cleaner is contained in the front of carburetor or draft tube, plays the effect of dust, sand grains in filtering air, guarantees to enter enough, clean air in cylinder.
In thousands upon thousands parts of automobile, air cleaner is extremely unremarkable parts, because it is not directly connected to the technical feature of automobile, but in the actual use of automobile, air cleaner is but on there being great impact the serviceable life of automobile (particularly asepwirator pump).On the one hand, if there is no the filtration of air cleaner, asepwirator pump will suck the air that contains in a large number dust, particle, causes asepwirator pump cylinder wear serious; On the other hand, if in use, do not give for a long time maintaining, the filter core of air cleaner will stick airborne dust, this not only makes filtration capacity decline, but also can hinder the circulation of air, causes combination gas overrich and makes asepwirator pump work undesired.Therefore, maintaining air cleaner is vital on schedule.
The chief component of air cleaner is filter core and housing, and wherein filter core is main filtration fraction, bearing the filtration work of gas, and housing is the external structure that necessary protection is provided for filter core.How the seal degree of filter core and housing is detected.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Summary of the invention
The object of the invention is to, provide a kind of air cleaner method of inspection, to address the above problem.
Technical matters solved by the invention can realize by the following technical solutions:
The air cleaner method of inspection, is characterized in that, step 1 makes the air intake opening of air cleaner to be detected be positioned at a chamber, and the air inlet that gas outlet and is positioned at the asepwirator pump outside chamber is connected; Step 2, seals chamber; Step 3, regulates the extremely test environmental parameter of environmental parameter in chamber; Step 4, opens asepwirator pump, forces air stream in chamber through air cleaner to be detected; Step 5, closes asepwirator pump, by filter core, towards the amount of dust of a side of housing, as the judgment basis of the seal degree of filter core and housing.By this kind of method, can effectively detect the seal degree of filter core and housing.Method is simple, reliable results.
In step 1, can the air inlet of gas outlet and asepwirator pump be connected by hollow tube.In chamber, can be provided with a perforate, hollow tube is through described perforate, the one end being connected with air cleaner to be detected is positioned at chamber, and the one end being connected with asepwirator pump is positioned at outside chamber, between the hollow tube of tapping and chamber, passes through sealant sealing.
In step 3, test is preferably by environmental parameter: room temperature, dust concentration is 1g/m
3, flying dust pressure is 1bar.For making the environmental parameter in chamber reach the requirement of testing by environmental parameter, described chamber also connects a chamber environmental control unit, described chamber environmental control unit comprises that a barometric control unit for gas injection in chamber, is for pour the dust regulating device of dust in chamber, the gas outlet of described barometric control unit, the dust mouth of described dust regulating device and described chamber UNICOM.Described barometric control unit can be the air lift pump that is filled with gas in, and described barometric control unit can also be a hair-dryer, fan blower etc.Test can require to adjust according to different measurements by environmental parameter.
In step 5, can after opening half an hour, asepwirator pump close.Preferably the time of asepwirator pump in running status is half an hour, and be half an hour detection time, using the result of use in half an hour as the unified test duration, so that the seal degree of the filter core of multiple air cleaner and housing is compared.Generally, when half an hour, close asepwirator pump, if on filter core, have dust towards a side of housing, for defective; On filter core, towards a side free from dust of housing, for qualified.
For to the seal degree of filter core and housing to further understanding, in step 1, when the air inlet that gas outlet and is positioned to the asepwirator pump outside chamber is connected, the housing that can be connected to by one air cleaner for measuring the pressure transducer of housing pressurized situation, the signal output part of pressure transducer is connected to a processor system being positioned at outside chamber by signal wire.Select the adjustable asepwirator pump of rotating speed, the signal controlling end of the asepwirator pump that described rotating speed is adjustable also connects described processor system simultaneously.In step 4, described processor system, by the rotating speed of the adjustable asepwirator pump of adjusting rotary speed, regulates the air mass flow in air cleaner, obtains the force value under respective air flow by described pressure transducer simultaneously.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, further set forth the present invention below in conjunction with concrete diagram.
The air cleaner method of inspection, step 1, makes the air intake opening of air cleaner to be detected be positioned at a chamber, and the air inlet that gas outlet and is positioned at the asepwirator pump outside chamber is connected; Step 2, seals chamber; Step 3, regulates the extremely test environmental parameter of environmental parameter in chamber; Step 4, opens asepwirator pump, forces air stream in chamber through air cleaner to be detected; Step 5, closes asepwirator pump, by filter core, towards the amount of dust of a side of housing, as the judgment basis of the seal degree of filter core and housing.By this kind of method, can effectively detect the seal degree of filter core and housing.Method is simple, reliable results.
In step 1, can the air inlet of gas outlet and asepwirator pump be connected by hollow tube.In chamber, can be provided with a perforate, hollow tube is through perforate, the one end being connected with air cleaner to be detected is positioned at chamber, and the one end being connected with asepwirator pump is positioned at outside chamber, between the hollow tube of tapping and chamber, passes through sealant sealing.
In step 3, test is preferably by environmental parameter: room temperature, dust concentration is 1g/m
3, flying dust pressure is 1bar.For making the environmental parameter in chamber reach the requirement of testing by environmental parameter, chamber also connects a chamber environmental control unit, chamber environmental control unit comprises that a barometric control unit for gas injection in chamber, is for pour the dust regulating device of dust in chamber, the gas outlet of barometric control unit, the dust mouth of dust regulating device and chamber UNICOM.Barometric control unit can be the air lift pump that is filled with gas in, and barometric control unit can also be a hair-dryer, fan blower etc.Test can require to adjust according to different measurements by environmental parameter.
In step 5, can after opening half an hour, asepwirator pump close.Preferably the time of asepwirator pump in running status is half an hour, and be half an hour detection time, using the result of use in half an hour as the unified test duration, so that the seal degree of the filter core of multiple air cleaner and housing is compared.Generally, when half an hour, close asepwirator pump, if on filter core, have dust towards a side of housing, for defective; On filter core, towards a side free from dust of housing, for qualified.
For to the seal degree of filter core and housing to further understanding, in step 1, when the air inlet that gas outlet and is positioned to the asepwirator pump outside chamber is connected, the housing that can be connected to by one air cleaner for measuring the pressure transducer of housing pressurized situation, the signal output part of pressure transducer is connected to a processor system being positioned at outside chamber by signal wire.Select the adjustable asepwirator pump of rotating speed, the signal controlling end of the asepwirator pump that rotating speed is adjustable also connects processor system simultaneously.In step 4, processor system, by the rotating speed of the adjustable asepwirator pump of adjusting rotary speed, regulates the air mass flow in air cleaner, obtains the force value under respective air flow by pressure transducer simultaneously.
According to said method, can carry out following experiment:
Test condition: temperature is room temperature, atmospheric pressure is 101.3kPa.
Test dust concentration: 1g/m3 or determine according to customer requirement
The thin grey A2 of test dust: ISO or determine according to customer requirement
Test flying dust pressure: 1bar
Test air cleaner vacuum pressure: the pressure of each air cleaner under rated flow
Test period: half an hour
Test findings: on filter core, there is dust towards a side (being clean side) of housing, defective;
Towards a side (the being clean side) free from dust of housing, qualified on filter core.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. the air cleaner method of inspection, is characterized in that, step 1 makes the air intake opening of air cleaner to be detected be positioned at a chamber, and the air inlet that gas outlet and is positioned at the asepwirator pump outside chamber is connected; Step 2, seals chamber; Step 3, regulates the extremely test environmental parameter of environmental parameter in chamber; Step 4, opens asepwirator pump, forces air stream in chamber through air cleaner to be detected; Step 5, closes asepwirator pump, by filter core, towards the amount of dust of a side of housing, as the judgment basis of the seal degree of filter core and housing.
2. the air cleaner method of inspection according to claim 1, is characterized in that: in step 1, by hollow tube, the air inlet of gas outlet and asepwirator pump is connected.
3. the air cleaner method of inspection according to claim 1, it is characterized in that: chamber is provided with a perforate, hollow tube is through described perforate, the one end being connected with air cleaner to be detected is positioned at chamber, the one end being connected with asepwirator pump is positioned at outside chamber, between the hollow tube of tapping and chamber, passes through sealant sealing.
4. the air cleaner method of inspection according to claim 1, is characterized in that: in step 3, test is preferably by environmental parameter: room temperature, dust concentration is 1g/m
3, flying dust pressure is 1bar.
5. the air cleaner method of inspection according to claim 1, is characterized in that: in step 5, after asepwirator pump is opened half an hour, close asepwirator pump.
6. the air cleaner method of inspection according to claim 1, is characterized in that: in step 4, the time of asepwirator pump in running status is half an hour;
In step 5, if having dust towards a side of housing on filter core, for defective; On filter core towards a side free from dust of housing, for qualified.
7. the air cleaner method of inspection according to claim 1, it is characterized in that: in step 1, when the air inlet that gas outlet and is positioned to the asepwirator pump outside chamber is connected, the housing that is connected to air cleaner by one for measuring the pressure transducer of housing pressurized situation, the signal output part of pressure transducer is connected to a processor system being positioned at outside chamber by signal wire;
Asepwirator pump is the adjustable asepwirator pump of rotating speed simultaneously, and the signal controlling end of the asepwirator pump that described rotating speed is adjustable also connects described processor system;
In step 4, described processor system, by the rotating speed of the adjustable asepwirator pump of adjusting rotary speed, regulates the air mass flow in air cleaner, obtains the force value under respective air flow by described pressure transducer simultaneously.
8. the air cleaner method of inspection according to claim 7, is characterized in that: described chamber also connects a chamber environmental control unit;
Described chamber environmental control unit comprises that a barometric control unit for gas injection in chamber, is for pour the dust regulating device of dust in chamber, the gas outlet of described barometric control unit, the dust mouth of described dust regulating device and described chamber UNICOM;
Described chamber environmental control unit connects described processor system.
9. the air cleaner method of inspection according to claim 8, is characterized in that: described barometric control unit is hair-dryer or fan blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070738.0A CN103852219A (en) | 2013-03-06 | 2013-03-06 | Inspection method of air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070738.0A CN103852219A (en) | 2013-03-06 | 2013-03-06 | Inspection method of air filter |
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| CN103852219A true CN103852219A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310070738.0A Pending CN103852219A (en) | 2013-03-06 | 2013-03-06 | Inspection method of air filter |
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| CN (1) | CN103852219A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241645A (en) * | 2015-09-25 | 2016-01-13 | 恒勃控股股份有限公司 | Detection device for intake resistance of small-flow air filer of universal machine |
| 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 |
| CN106679902A (en) * | 2016-12-26 | 2017-05-17 | 河南科技大学 | Dry-type air cleaner element detection device and dry-type air cleaner element detection method |
| CN107321092A (en) * | 2017-07-19 | 2017-11-07 | 广州金田瑞麟环境科技有限公司 | Air cleaner detection device goes out pneumatic control method |
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| JP2005349389A (en) * | 2004-05-14 | 2005-12-22 | Tigers Polymer Corp | Air filter |
| US20060042359A1 (en) * | 2004-08-04 | 2006-03-02 | Camfil Farr, Inc. | Scan testable filter housing assembly for exhaust applications |
| CN202057482U (en) * | 2011-04-29 | 2011-11-30 | 柳州日高过滤器有限责任公司 | Air cleaner characteristic testing device |
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Patent Citations (3)
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| JP2005349389A (en) * | 2004-05-14 | 2005-12-22 | Tigers Polymer Corp | Air filter |
| US20060042359A1 (en) * | 2004-08-04 | 2006-03-02 | Camfil Farr, Inc. | Scan testable filter housing assembly for exhaust applications |
| CN202057482U (en) * | 2011-04-29 | 2011-11-30 | 柳州日高过滤器有限责任公司 | Air cleaner characteristic testing device |
Non-Patent Citations (2)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105241645A (en) * | 2015-09-25 | 2016-01-13 | 恒勃控股股份有限公司 | Detection device for intake resistance of small-flow air filer of universal machine |
| CN105241645B (en) * | 2015-09-25 | 2018-05-11 | 恒勃控股股份有限公司 | The detection device of the small flow air filter intake resistance of universal machine |
| CN106679902A (en) * | 2016-12-26 | 2017-05-17 | 河南科技大学 | Dry-type air cleaner element detection device and dry-type air cleaner element detection method |
| CN107321092A (en) * | 2017-07-19 | 2017-11-07 | 广州金田瑞麟环境科技有限公司 | Air cleaner detection device goes out pneumatic control method |
| CN107321092B (en) * | 2017-07-19 | 2020-03-17 | 广州金田瑞麟环境科技有限公司 | Air outlet control method of air filter detection equipment |
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Application publication date: 20140611 |