CN107991217A - Air filter detection device - Google Patents
Air filter detection device Download PDFInfo
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- CN107991217A CN107991217A CN201711442511.9A CN201711442511A CN107991217A CN 107991217 A CN107991217 A CN 107991217A CN 201711442511 A CN201711442511 A CN 201711442511A CN 107991217 A CN107991217 A CN 107991217A
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- air filter
- detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 76
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 12
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000012372 quality testing Methods 0.000 claims 1
- 230000002155 anti-virotic effect Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 208000030303 breathing problems Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Present invention is disclosed a kind of air filter detection device, match with air filter, including the detection components for carrying out every Detection of Air Quality, for driving the Power Component of air flow, and the feedback component shown for testing result, air intlet and air outlet slit are provided with the detection components, the air intlet is connected with air filter pipeline, the air outlet slit is connected with the Power Component pipeline, and the feedback component is electrically connected with the detection components and carries out correspondingly feedback display according to the testing result of the detection components.The present invention is by detecting the air quality index after being filtered by filter, realize the purpose of detection filter filter efficiency, compared with filter detection device of the prior art, compact-sized, compact of the invention, the routine testing for easily facilitating user uses.
Description
Technical field
The present invention relates to a kind of detection device, and in particular to a kind of to carry out feature detection to anti-virus filter
Air filter detection device, belongs to purifier testing equipment field.
Background technology
In recent years, the atmosphere polluting problem getting worse in China, for protecting the health, prevent the purpose of breathing problem,
More and more people start to select air cleaning facility in daily work and life to improve air quality.Of all kinds
Air cleaning facility in, anti-virus filter is extensive as a kind of air cleaning facility of new portable, professional formula
Ground is applied in the daily life of resident.
At present, in the occasion that hospital, research institute etc. have higher requirements air quality, purchase and filtered using anti-virus
Before device, the filter effect and filter efficiency of the anti-virus filter that people can tend to be used for are detected in advance.But
In the current situation, user is except the detection device of purchase specialty or in addition to being detected to special testing laboratory, and
There is no a kind of low cost, easily mode can quickly detect the filter effect and filter efficiency of anti-virus filter.
In addition, existing detection device also there is one it is notable the problem of, i.e., the display mode of detection result is not very straight
See, most operators, particularly some layman, it is difficult to directly observe testing result.
In conclusion how to design a kind of filter effect that can quickly detect anti-virus filter, filter efficiency
Anti-virus filter detection device so that effectively ensure product qualification rate, the filtering of timely management and control anti-virus filter
Quality, just becomes those skilled in the art's urgent problem to be solved.
The content of the invention
In view of the prior art, there are drawbacks described above, the purpose of the present invention is to propose to one kind to carry out anti-virus filter
The air filter detection device of feature detection.
The purpose of the present invention, will be achieved by the following technical programs：
A kind of air filter detection device, matches with air filter, including for carrying out every Detection of Air Quality
Detection components, for driving the Power Component of air flow, and the feedback component shown for testing result, the detection group
Air intlet and air outlet slit are provided with part, the air intlet is connected with air filter pipeline, the air outlet slit with
The Power Component pipeline connection, the feedback component are electrically connected with the detection components and according to the detection components
Testing result carries out correspondingly feedback display.
Preferably, the detection components include sealing shell and detection sensor, the sealing shell include upper casing and under
Shell, the upper casing is fixedly connected with the lower casing, the two collectively forms an airtight cavity, and the detection sensor is arranged at solid
Surely it is arranged in the airtight cavity.
Preferably, it is threadedly coupled or snaps connection between the upper casing and the lower casing or gluing connection or supersonic welding
Connect.
Preferably, be threadedly coupled between the upper casing and the lower casing, between the upper casing and the lower casing between also set
It is equipped with the silica gel sealing ring for ensuring sealing effect between the two.
Preferably, air intlet and air outlet slit, the air intlet and the air are offered at the top of the upper casing
Outlet is connected with the upper casing with the airtight cavity that lower casing collectively forms, and electrical wire interface is provided with the top of the upper casing,
The electrical wire interface is electrically connected with the detection sensor.
Preferably, the detection sensor is PM2.5 sensors, in formaldehyde sensor, CO2 sensors, TVOC sensors
One or more combinations.
Preferably, the air intlet is connected with an air inlet pipe, one end of the air inlet pipe and the air intlet phase
Connection, the other end are connected with filter adaptation connector, the gas outlet phase of the filter adaptation connector and air filter
Match somebody with somebody.
Preferably, the Power Component is aspiration pump, and air inlet and gas outlet, the air inlet are provided with the aspiration pump
Mouth is connected by the first air outlet pipe with the air outlet slit, and the gas outlet is connected with the second air outlet pipe.
Preferably, the feedback component includes electronic circuit board, digital display screen and air quality indicator light, the electricity
Sub- wiring board is electrically connected by the electrical wire interface and the detection sensor, the digital display screen, air quality instruction
Lamp and the aspiration pump are electrically connected with the electronic circuit board.
Preferably, the power supply for device bulk supply is further included, the power supply is electrically connected with the electronic circuit board, institute
It is storage battery or alternating current to state power supply.
The present invention protrusion effect be：The present invention is realized by detecting the air quality index after being filtered by filter
The purpose of filter filter efficiency is detected, compared with filter detection device of the prior art, compact-sized, volume of the invention
Compact, the routine testing for easily facilitating user uses.Sensor module in the present invention can also be according to actual use need
Will and carry out personalized adjustment, device testing result is accurate and more specific aim, while the present invention is also equipped with demo function, right
The displaying of testing result is more directly perceived, specific.In addition, it is used herein to each type component be all common on the market mostly
Normal component, producer or user can be transformed to obtain by the processing to existing equipment, and device processing cost is opposite
Relatively low, installation process simple and fast, provides the foundation for its follow-up large-scale promotion.
In conclusion compact structure of the present invention, testing result is reliable and possesses certain demo function, manufacture cost compared with
It is low, there is very high use and promotional value.
Just attached drawing in conjunction with the embodiments below, is described in further detail the embodiment of the present invention, so that of the invention
Technical solution is more readily understood, grasps.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of detection components in the present invention.
Wherein：1st, filter adaptation connector；2nd, air inlet pipe；31st, upper casing；32nd, lower casing；33rd, silica gel sealing ring；34th, air
Import；35th, air outlet slit；36th, electrical wire interface；41st, the first air outlet pipe；42nd, the second air outlet pipe；5th, aspiration pump；61st, electronic circuit
Plate；62nd, digital display screen；63rd, air quality indicator light；7th, power supply.
Embodiment
As shown in the figure, present invention is disclosed a kind of air filter that feature detection can be carried out to anti-virus filter
Detection device.
A kind of air filter detection device, matches with air filter, including for carrying out every air quality inspection
The detection components of survey, for driving the Power Component of air flow, and the feedback component shown for testing result, the inspection
Survey on component and be provided with air intlet 34 and air outlet slit 35, the air intlet 34 is connected with air filter pipeline, described
Air outlet slit 35 is connected with the Power Component pipeline, and the feedback component is electrically connected with the detection components and according to institute
The testing result for stating detection components carries out correspondingly feedback display.
The detection components include sealing shell and detection sensor（Not shown in figure）, the sealing shell includes upper casing
31 and lower casing 32, the upper casing 31 is fixedly connected with the lower casing 32, the two collectively forms an airtight cavity, and the detection passes
Sensor, which is arranged at, to be fixedly installed in the airtight cavity.
It is threadedly coupled or snaps connection between the upper casing 31 and the lower casing 32 or gluing connection or ultrasonic bonding.
In the present embodiment, it is threadedly coupled between the upper casing 31 and the lower casing 32, the upper casing 31 and the lower casing
The silica gel sealing ring 33 for ensuring sealing effect between the two is additionally provided between 32.
The top of the upper casing 31 offers air intlet 34 and air outlet slit 35, the air intlet 34 and the air
Outlet 35 is connected with the upper casing 31 with the airtight cavity that lower casing 32 collectively forms, and the top of the upper casing 31 is provided with electricity
Line interface 36, the electrical wire interface 36 are electrically connected with the detection sensor.
The detection sensor for PM2.5 sensors, formaldehyde sensor, CO2 sensors, one kind in TVOC sensors or
A variety of combinations.
The air intlet 34 is connected with air inlet pipe 2, one end of the air inlet pipe 2 is connected with the air intlet 34,
The other end is connected with filter adaptation connector 1, and the gas outlet of the filter adaptation connector 1 and air filter matches.
The Power Component is aspiration pump 5, is provided with air inlet and gas outlet on the aspiration pump 5, the air inlet is borrowed
The first air outlet pipe 41 is helped to be connected with the air outlet slit 35, the gas outlet is connected with the second air outlet pipe 42.
The feedback component includes electronic circuit board 61, digital display screen 62 and air quality indicator light 63, the electricity
Sub- wiring board 61 is electrically connected by the electrical wire interface 36 and the detection sensor, the digital display screen 62, air matter
Amount instruction lamp 63 and the aspiration pump 5 are electrically connected with the electronic circuit board 61.In the present embodiment, in order to ensure
The display effect of digital display screen 62 is stated, while realization device overall structure is preferably entirely stored, the digital display screen 62
It is fixedly installed on the electronic circuit board 61.
The air filter detection device further includes the power supply 7 for device bulk supply, the power supply 7 and the electronics
Wiring board 61 is electrically connected, and the power supply 7 is storage battery or alternating current.Specifically, the power supply 7 can be that dry cell or lead store
Battery or lithium battery or photovoltaic cell etc..In the present embodiment, it is 12V power supplys used by the power supply 7.
Furthermore, it is necessary to explanation, air filter detection device of the invention are technically characterized in that the upper casing 31
With the lower casing 32 collectively form an airtight cavity must be fully sealed, can not gas leakage, meanwhile, with the air intlet 34,
Also must be the state being fully sealed between each component and each pipeline that air outlet slit 35 and electrical wire interface 36 are connected.Otherwise can
Cause the inaccuracy of present apparatus detection result.
Use process and operation principle of the invention described briefly below, air filter to be detected is connect with filter adaptation
After first 1 successful connection, starter is evacuated aspiration pump 5, and the filtered air of air filter enters in air inlet pipe 2, works as gas
When body flows through detection sensor, detection sensor can detect the air quality of gas in current airtight cavity, real time data
It can be shown on digital display screen 62, while the color of air quality indicator light 63 also can be according to data variation.And when it is described into
When tracheae 2 is not connected with air filter, after starter, the detection sensor can then directly detect filtered air
In air pollutants data.
For example, when the detection sensor is PM2.5 sensors, the air inlet pipe 2 is not connected with the feelings of air filter
Under condition, the data detected are the data of PM2.5 in air, unit ug/m3.When air inlet pipe 2 connects air filter, then institute
The data for stating detection sensor detection are then the air quality data after filtering.If experimental result is when PM2.5 reaches
When 102ug/m3 seriously pollutes, PM2.5 can be reduced to 0 after connection air filter 1 minute, then it can draw a conclusion, should
The filter efficiency of money air filter has reached 99.6%.
The present invention realizes detection filter filter efficiency by detecting the air quality index after being filtered by filter
Purpose, compared with filter detection device of the prior art, compact-sized, compact of the invention, easily facilitates user
Routine testing use.Sensor module in the present invention can also need according to actual use and carry out personalized tune
Whole, device testing result is accurate and more specific aim, while the present invention is also equipped with demo function, and the displaying to testing result is more
Intuitively, specifically.In addition, it is used herein to each type component be all normal component common on the market mostly, producer
Or user can be transformed to obtain by the processing to existing equipment, device processing cost is relatively low, and installation process is simple
Fast, provide the foundation for its follow-up large-scale promotion.
In conclusion compact structure of the present invention, testing result is reliable and possesses certain demo function, manufacture cost compared with
It is low, there is very high use and promotional value.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit and essential characteristics of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention, and any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of air filter detection device, matches with air filter, it is characterised in that：Including every empty for carrying out
The detection components of gas quality testing, for driving the Power Component of air flow, and the feedback group shown for testing result
Part, is provided with air intlet in the detection components（34）And air outlet slit（35）, the air intlet（34）With air filtration
Device pipeline connects, the air outlet slit（35）It is connected with the Power Component pipeline, the feedback component and the detection components
It is electrically connected and carries out correspondingly feedback display according to the testing result of the detection components.
2. air filter detection device according to claim 1, it is characterised in that：It is outer that the detection components include sealing
Shell and detection sensor, the sealing shell include upper casing（31）And lower casing（32）, the upper casing（31）With the lower casing（32）
Be fixedly connected, the two collectively forms an airtight cavity, the detection sensor, which is arranged at, is fixedly installed on the airtight cavity
It is interior.
3. air filter detection device according to claim 2, it is characterised in that：The upper casing（31）With the lower casing
（32）Between be threadedly coupled or snap connection or gluing connection or ultrasonic bonding.
4. air filter detection device according to claim 2, it is characterised in that：The upper casing（31）With the lower casing
（32）Between be threadedly coupled, the upper casing（31）With the lower casing（32）Between between be additionally provided with for ensuring to seal between the two
The silica gel sealing ring of effect（33）.
5. air filter detection device according to claim 2, it is characterised in that：The upper casing（31）Top open up
There is air intlet（34）And air outlet slit（35）, the air intlet（34）With the air outlet slit（35）With the upper casing
（31）With lower casing（32）The airtight cavity collectively formed is connected, the upper casing（31）Top be provided with electrical wire interface（36）,
The electrical wire interface（36）It is electrically connected with the detection sensor.
6. air filter detection device according to claim 2, it is characterised in that：The detection sensor is PM2.5
One or more combinations in sensor, formaldehyde sensor, CO2 sensors, TVOC sensors.
7. air filter detection device according to claim 2, it is characterised in that：The air intlet（34）It is connected with
Air inlet pipe（2）, the air inlet pipe（2）One end and the air intlet（34）It is connected, the other end and filter adaptation connector
（1）It is connected, the filter adaptation connector（1）Match with the gas outlet of air filter.
8. air filter detection device according to claim 2, it is characterised in that：The Power Component is aspiration pump
（5）, the aspiration pump（5）On be provided with air inlet and gas outlet, the air inlet is by the first air outlet pipe（41）With the sky
Gas exports（35）It is connected, the gas outlet and the second air outlet pipe（42）It is connected.
9. air filter detection device according to claim 8, it is characterised in that：The feedback component includes electric wire
Road plate（61）, digital display screen（62）And air quality indicator light（63）, the electronic circuit board（61）By the electric wire
Interface（36）It is electrically connected with the detection sensor, the digital display screen（62）, air quality indicator light（63）And institute
State aspiration pump（5）With the electronic circuit board（61）It is electrically connected.
10. air filter detection device according to claim 9, it is characterised in that：Further include as device bulk supply
Power supply（7）, the power supply（7）With the electronic circuit board（61）It is electrically connected, the power supply（7）For storage battery or alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442511.9A CN107991217A (en) | 2017-12-27 | 2017-12-27 | Air filter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442511.9A CN107991217A (en) | 2017-12-27 | 2017-12-27 | Air filter detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107991217A true CN107991217A (en) | 2018-05-04 |
Family
ID=62041709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711442511.9A Pending CN107991217A (en) | 2017-12-27 | 2017-12-27 | Air filter detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107991217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380795A (en) * | 2020-05-08 | 2020-07-07 | 核工业理化工程研究院 | Device for measuring filtering efficiency of filter element |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387414Y (en) * | 2008-12-20 | 2010-01-20 | 杜向阳 | Indoor air environment monitor |
| CN203298793U (en) * | 2013-01-16 | 2013-11-20 | 世源科技工程有限公司 | Chemical filter detection device |
| CN203688411U (en) * | 2014-02-28 | 2014-07-02 | 苏州亿利安机电科技有限公司 | On-line dust concentration monitoring device with dust sensor |
| CN104792681A (en) * | 2015-04-10 | 2015-07-22 | 山东大学 | Device for detecting and comparing performance of filters as well as detection method |
| CN205439896U (en) * | 2016-03-18 | 2016-08-10 | 嘉善富亿德塑胶有限公司 | Take on -vehicle air purifier of PM2. 5 numerical value demonstration |
| CN106442198A (en) * | 2016-11-08 | 2017-02-22 | 天津本捷亚晶环保科技发展有限公司 | Air filter detection table |
| CN106680184A (en) * | 2017-02-25 | 2017-05-17 | 河北科技大学 | Air filter material filtration performance testing device and testing method |
| CN206609757U (en) * | 2017-04-06 | 2017-11-03 | 武汉普优瑞科技有限公司 | Strainability of having a stuffy nose detects storehouse and strainability detection means |
| CN206670685U (en) * | 2017-04-12 | 2017-11-24 | 北京万生人和科技有限公司 | A kind of air quality sample testing meter |
| CN208140532U (en) * | 2017-12-27 | 2018-11-23 | 苏州倍安电子科技有限公司 | Air filter detection device |
-
2017
- 2017-12-27 CN CN201711442511.9A patent/CN107991217A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387414Y (en) * | 2008-12-20 | 2010-01-20 | 杜向阳 | Indoor air environment monitor |
| CN203298793U (en) * | 2013-01-16 | 2013-11-20 | 世源科技工程有限公司 | Chemical filter detection device |
| CN203688411U (en) * | 2014-02-28 | 2014-07-02 | 苏州亿利安机电科技有限公司 | On-line dust concentration monitoring device with dust sensor |
| CN104792681A (en) * | 2015-04-10 | 2015-07-22 | 山东大学 | Device for detecting and comparing performance of filters as well as detection method |
| CN205439896U (en) * | 2016-03-18 | 2016-08-10 | 嘉善富亿德塑胶有限公司 | Take on -vehicle air purifier of PM2. 5 numerical value demonstration |
| CN106442198A (en) * | 2016-11-08 | 2017-02-22 | 天津本捷亚晶环保科技发展有限公司 | Air filter detection table |
| CN106680184A (en) * | 2017-02-25 | 2017-05-17 | 河北科技大学 | Air filter material filtration performance testing device and testing method |
| CN206609757U (en) * | 2017-04-06 | 2017-11-03 | 武汉普优瑞科技有限公司 | Strainability of having a stuffy nose detects storehouse and strainability detection means |
| CN206670685U (en) * | 2017-04-12 | 2017-11-24 | 北京万生人和科技有限公司 | A kind of air quality sample testing meter |
| CN208140532U (en) * | 2017-12-27 | 2018-11-23 | 苏州倍安电子科技有限公司 | Air filter detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380795A (en) * | 2020-05-08 | 2020-07-07 | 核工业理化工程研究院 | Device for measuring filtering efficiency of filter element |
| CN111380795B (en) * | 2020-05-08 | 2024-05-14 | 核工业理化工程研究院 | Device for measuring filtering efficiency of filter element |
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