CN207540940U - A kind of filtering material or filter element air permeability detector - Google Patents
A kind of filtering material or filter element air permeability detector Download PDFInfo
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- CN207540940U CN207540940U CN201721629763.8U CN201721629763U CN207540940U CN 207540940 U CN207540940 U CN 207540940U CN 201721629763 U CN201721629763 U CN 201721629763U CN 207540940 U CN207540940 U CN 207540940U
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Abstract
The utility model discloses a kind of filtering material or filter element air permeability detectors, it is equipped with the pressure reducing purifying component being connected by pipeline successively along airintake direction, dedusting oil removing removes water purification installation, decompressor, flow regulator, test specimen chucking device and flow measurement device, pressure reducing purifying component is connect by pipeline with external compression air source, it is clamped between test specimen chucking device by test specimen, air inlet pressure-measuring pipe and outlet pressure-measuring pipe are connected separately on the air inlet cavity of test specimen chucking device and outlet cavity, differential pressure measurement device is connected between air inlet pressure-measuring pipe and outlet pressure-measuring pipe, the flow regulator, flow measurement device and differential pressure measurement device are connected respectively by circuit with test control system.The utility model is simple in structure, and equipment volume is small, can quickly detect the air permeability of filtering material.
Description
Technical field
The utility model belongs to test equipment technical field, and in particular to a kind of filtering material or the inspection of filter element air permeability
Survey instrument.
Background technology
Filtering material is one of required raw material in filter element production, plays the role of impurity screening, important
One of parameter is exactly air permeability.Relatively common filtering material has：Purifying and dedusting filtration core, lubrication oil filtration core, dust recycling
Filter core, hydraulic oil filter core, air cleaner, air-conditioning filter cleaner, oil filter and fuel filter, each corresponding filter core
Or filter was substantially the impurity in air filtering or liquid.Filtering material strainability is high, and service life is permanent, durable to shake
Dynamic property and durability are higher, it is not easy to leak dust, water-tolerant will not block the entrance of air, load and unload simple light and handy.
The application of filtering material includes the following aspects：1st, air filter for automobile filters out the objectionable impurities and organic gas outside vehicle,
Such as haze, VOC gas；2nd, mask protects people's respiratory system not receive the infringements such as haze, toxic gas；3rd, dust removal filter element, environment
It administers, reduces disposal of pollutants；4th, dust recycles, and the dust such as concrete stirring, equipment application recycle, energy conservation and environmental protection.
The air permeability of filtering material is one of important strainability index of filtering material, in filter element production, filtering
Material R＆D and production and filtering material are one of projects that must be examined during delivering examination etc., and air permeability also can be with product
It places and changes, the air permeability of filtering material cannot be estimated usually using naked eyes.Major part air permeability in market measures at present
All it is using negative pressure, that is, has Fans pumping, it is extraneous（In test environment）Air is by filtering material, if filtering material
Precision is higher, can influence test result, and the particulate pollutant in environment is attached directly to filtering material surface and inside or even meeting
Part filtering gap is blocked, and then influences test result, also occurs bigger deviation in the room of relative clean, if a
Environment is worse, and influencing result will be more serious, and the cost that protection processing is also carried out to test environment can be very high, if using just
Pressure test, these situations can avoid.Gas permeable plain degree test is carried out in relatively closed clean room, in filtering material table
Face have gas by local color significantly deepen, without such phenomenon if using positive pressure.Therefore, it is necessary to design one kind
Using the filtering material air permeability detector of positive pressure, the air permeability of filtering material can be quickly detected, and for filtering
Element is produced has certain directive significance with filtering material manufacturer, is also more conducive to the safety that user uses.
Invention content
There is provided one kind is simple in structure, equipment volume is small and it is quick to realize for the technical issues of the utility model solves
The filtering material of detection or filter element air permeability detector.
The utility model adopts the following technical scheme that a kind of filtering material or filter element are saturating to solve above-mentioned technical problem
Manner detector, it is characterised in that along airintake direction is equipped with the pressure reducing purifying component being connected by pipeline successively, dedusting oil removing removes
Water purification installation, decompressor, flow regulator, test specimen chucking device and flow measurement device, pressure reducing purifying component pass through
Pipeline is connect with external compression air source, between being clamped in test specimen chucking device by test specimen, the air inlet cavity of test specimen chucking device and
Air inlet pressure-measuring pipe and outlet pressure-measuring pipe are connected separately on outlet cavity, pressure is connected between air inlet pressure-measuring pipe and outlet pressure-measuring pipe
Difference measuring device, the flow regulator, flow measurement device and differential pressure measurement device pass through circuit and testing and control respectively
System is connected.
Further preferably, the end of the flow measurement device is connected with silencing means, the silencing means and ambient atmosphere
Communicate the atmospheric pressure to be formed and be equal with flow measurement device outlet.
Further preferably, it is described by test specimen be filter paper, filter cloth, strainer, sheet-like filter material or sheet-like filter element.
The utility model has the advantages that compared with prior art：The utility model is tested using positive pressure, is had
Test function is automatically controlled, the test result of precise and high efficiency is provided, the circulating resistance of filtering material can be tested, is other filterings
Critical function not available for material gas permeable degree instrument；The utility model is simple in structure, and equipment volume is small, can quickly detect
The air permeability of filter material material, and there is certain directive significance with filtering material manufacturer to filter element production, also more
Be conducive to user by using the air permeability of device detection filtering material further to assess the safety that filtering material uses.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1- pipelines, 2- pressure reducing purifying components, 3- dedustings oil removing remove water purification installation, 4- decompressors, 5- flow tune
Regulating device, 6- test specimen chucking devices, 7- is by test specimen, 8- flow measurement devices, 9- silencing means, 10- outlet pressure-measuring pipes, 11- pressures
Difference measuring device, 12- air inlet pressure-measuring pipes, 13- test control systems.
Specific embodiment
The particular content of the utility model is described in detail with reference to attached drawing.A kind of filtering material or the detection of filter element air permeability
Instrument is equipped with the pressure reducing purifying component 2 being connected by pipeline 1, dedusting oil removing along airintake direction except water purification installation 3, decompression successively
Device 4, flow regulator 5, test specimen chucking device 6 and flow measurement device 8, pressure reducing purifying component 2 pass through pipeline 1 and outside
Compressed gas source connects, and the end of flow measurement device 8 is connected with silencing means 9, which communicates to be formed with ambient atmosphere
The atmospheric pressure being equal is exported with flow measurement device 11, between being clamped in test specimen chucking device 6 by test specimen 7, test specimen chucking device 6
Air inlet cavity and outlet cavity on be connected separately with air inlet pressure-measuring pipe 12 and outlet pressure-measuring pipe 10, air inlet pressure-measuring pipe 12 and outlet
Differential pressure measurement device 11, the flow regulator 5, flow measurement device 8 and differential pressure measurement dress are connected between pressure-measuring pipe 10
11 are put respectively by circuit with test control system 13 to be connected.
The operation principle of the utility model is：External compression air source enters pressure reducing purifying component 2 by pipeline 1 and is subtracted
Pressure enters back into dedusting oil removing except water purification installation 3 removes the mist of oil and water droplet of larger particles, air source is further processed and is reached
To the purpose for not influencing test result, decompressor 4 is then entered back into, is needed to be adjusted flow regulator 5 according to test,
Gas after adjusting carries out test specimen chucking device 6, which can be carried out not according to crossing by the difference of test specimen 7
Isostructural design, and then can complete by test specimen 7（Include the mistake of various cylinders, cuboid, square and non-regular shape
Filter filter core）Clamping, be connected separately with air inlet pressure-measuring pipe 12 and to go out on the air inlet cavity of test specimen chucking device 6 and outlet cavity
Gas pressure-measuring pipe 10 is connected with differential pressure measurement device 11 between air inlet pressure-measuring pipe 12 and outlet pressure-measuring pipe 10, be loaded via test specimen
The test gas for putting 6 enters flow measurement device 8 by pipeline 1, and subsequently into silencing means 9, the silencing means 9 and the external world are big
Gas phase leads to be formed exports the atmospheric pressure being equal with flow measurement device 8.
In test process, flow regulator 5 is adjusted, due to being assumed to be c known to the effective area of test specimen 7, works as unit
Area flow be respectively fixed value E, F, G when numerical value, corresponding flow is respectively Ec、Fc、Gc, according to formula
Y=aX+b
When X is different flow E, F, G under certain pressure, Y just corresponds to Ec、Fc、Gc, and then a and b is obtained, then a and b bands
Enter above formula, as the result tested during 200Pa seeks to the air permeability values by test specimen 7 of test under specified pressure.It can be by surveying
Examination control system 13 is carried out automatically controlling by flow measurement device 8, differential pressure measurement device 11 and flow regulator 5, into
The automatic test of row simultaneously draws correlation curve and report according to test result, is then stored and is printed.
In addition, and a most important function be exactly can test under bleed pressure the circulating resistance of any range or
Person tests corresponding flow under fixed circulating resistance, and more reliable test equipment is provided for product selection or product test.
The basic principle of the utility model, main feature and advantage has been shown and described above, it is new not departing from this practicality
Under the premise of type spirit and scope, the utility model also has various changes and modifications, these changes and improvements both fall within requirement and protect
The scope of the utility model of shield.
Claims (3)
1. a kind of filtering material or filter element air permeability detector, it is characterised in that be equipped with successively along airintake direction and pass through pipeline
Connected pressure reducing purifying component, dedusting oil removing except water purification installation, decompressor, flow regulator, test specimen chucking device and
Flow measurement device, pressure reducing purifying component are connect by pipeline with external compression air source, and test specimen chucking device is clamped in by test specimen
Between, it is connected separately with air inlet pressure-measuring pipe and outlet pressure-measuring pipe, air inlet on the air inlet cavity of test specimen chucking device and outlet cavity
Differential pressure measurement device, the flow regulator, flow measurement device and pressure difference are connected between pressure-measuring pipe and outlet pressure-measuring pipe
Measuring device is connected respectively by circuit with test control system.
2. filtering material according to claim 1 or filter element air permeability detector, it is characterised in that：The flow is surveyed
The end of amount device is connected with silencing means, which communicates to be formed with ambient atmosphere is equal with flow measurement device outlet
Atmospheric pressure.
3. filtering material according to claim 1 or filter element air permeability detector, it is characterised in that：It is described by test specimen
For filter paper, filter cloth, strainer, sheet-like filter material or sheet-like filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629763.8U CN207540940U (en) | 2017-11-29 | 2017-11-29 | A kind of filtering material or filter element air permeability detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629763.8U CN207540940U (en) | 2017-11-29 | 2017-11-29 | A kind of filtering material or filter element air permeability detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540940U true CN207540940U (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721629763.8U Active CN207540940U (en) | 2017-11-29 | 2017-11-29 | A kind of filtering material or filter element air permeability detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801565A (en) * | 2018-08-15 | 2018-11-13 | 高博集团有限公司 | A kind of gasoline filter device for detecting sealability and its detection method |
| CN111077052A (en) * | 2019-12-12 | 2020-04-28 | 中国石油化工股份有限公司 | Performance evaluation device and method for oil field water injection filtering material |
| CN111337405A (en) * | 2020-03-20 | 2020-06-26 | 山东伟基炭科技有限公司 | Testing arrangement of graphite material's air permeability |
| CN111948116A (en) * | 2020-09-09 | 2020-11-17 | 连云港绿田青湾空调净化设备有限公司 | Air purification filter cloth detection device |
| CN112326530A (en) * | 2020-11-05 | 2021-02-05 | 江苏江化聚氨酯产品质量检测有限公司 | Detection apparatus for foam material air transmission rate |
-
2017
- 2017-11-29 CN CN201721629763.8U patent/CN207540940U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801565A (en) * | 2018-08-15 | 2018-11-13 | 高博集团有限公司 | A kind of gasoline filter device for detecting sealability and its detection method |
| CN108801565B (en) * | 2018-08-15 | 2023-09-29 | 高博集团有限公司 | Device and method for detecting tightness of gasoline filter |
| CN111077052A (en) * | 2019-12-12 | 2020-04-28 | 中国石油化工股份有限公司 | Performance evaluation device and method for oil field water injection filtering material |
| CN111077052B (en) * | 2019-12-12 | 2022-05-27 | 中国石油化工股份有限公司 | Performance evaluation device and method for oil field water injection filtering material |
| CN111337405A (en) * | 2020-03-20 | 2020-06-26 | 山东伟基炭科技有限公司 | Testing arrangement of graphite material's air permeability |
| CN111948116A (en) * | 2020-09-09 | 2020-11-17 | 连云港绿田青湾空调净化设备有限公司 | Air purification filter cloth detection device |
| CN111948116B (en) * | 2020-09-09 | 2021-12-28 | 连云港绿田青湾空调净化设备有限公司 | Air purification filter cloth detection device |
| CN112326530A (en) * | 2020-11-05 | 2021-02-05 | 江苏江化聚氨酯产品质量检测有限公司 | Detection apparatus for foam material air transmission rate |
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