CN109959116A - A kind of display methods and device in air purifier active carbon filter screen service life - Google Patents
A kind of display methods and device in air purifier active carbon filter screen service life Download PDFInfo
- Publication number
- CN109959116A CN109959116A CN201910217148.3A CN201910217148A CN109959116A CN 109959116 A CN109959116 A CN 109959116A CN 201910217148 A CN201910217148 A CN 201910217148A CN 109959116 A CN109959116 A CN 109959116A
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- China
- Prior art keywords
- formaldehyde
- service life
- air purifier
- filter screen
- active carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
The display methods in air purifier active carbon filter screen service life provided in an embodiment of the present invention, the part of chromogenic reaction occurs by using specific wavelength light source irradiation formaldehyde and the substrate that develops the color, the reflected light reflected progress conversion process is obtained into electric signal, and electric signal is converted to by digital signal using preset SCM program, obtain the life value of formaldehyde removal strainer, convenient for user strainer is replaced according to the service life that formaldehyde removes strainer in time, avoids the pollution to environment.
Description
Technical field
The present invention relates to electronic monitoring technical field more particularly to a kind of displays in air purifier active carbon filter screen service life
Method.
Background technique
Air purifier is also known as " air cleaner ", air cleaner, clarifier, is to refer to absorption, decompose or convert
Various air pollutants (generally comprise the finishing pollution, bacterium, anaphylactogen of PM2.5, dust, pollen, peculiar smell, formaldehyde etc
Deng), the product of air cleanliness is effectively improved, household, commercialization, industry, building are broadly divided into.Strainer is the core of air purifier
Center portion part, quantity and material have a significant impact to clean-up effect.The strainer master of air purifier mainstream currently on the market
Will there are five types of, including preposition strainer, deodorization strainer capable of washing, formaldehyde removal strainer, HEPA strainer and humidification strainer.
The judging service life standard and mode of different strainers are different, and service life indicating mode is usually countdown currently on the market
Formula and the PM2.5 population of HEPA strainer monitor calculation.Above two mode all can not effectively reflect formaldehyde removal filter
The actual life of net.Therefore, this technology be for formaldehyde removal strainer service life instruction system developed, reaching can refer to
Show the purpose of the actual life of strainer.
Summary of the invention
It is formaldehyde the purpose of the embodiment of the present invention is that providing a kind of display methods in air purifier active carbon filter screen service life
Removal strainer provides quantifiable service life supervision system, can monitor the practical operation situation of strainer, and Real-time Feedback in real time
The life value of formaldehyde removal strainer.
To achieve the above object, the embodiment of the invention provides a kind of display sides in air purifier active carbon filter screen service life
Method, comprising the following steps:
The gas being discharged from formaldehyde removal strainer is obtained, and extracts formaldehyde sample from the gas kind；
The formaldehyde is placed on pretreated colour developing substrate, obtains the first base material for showing color；
It obtains specific wavelength light source and is radiated at the reflected light reflected in the first base material, the reflected light is turned
Processing is changed, electric signal is obtained；
According to preset SCM program and the electric signal, the life value of the formaldehyde removal strainer is obtained.
Further, described to be placed on the formaldehyde on pretreated colour developing substrate, obtain show color
One substrate, specifically:
The color developing agent that PARA FORMALDEHYDE PRILLS(91,95) pollutant has chromogenic reaction is uniformly smeared on colour developing substrate, obtains pretreated show
Color base material；
Formaldehyde sample is placed on the pretreated colour developing substrate, so that the formaldehyde and the color developing agent occur
Chromogenic reaction obtains first base material.
Further, described that conversion process is carried out to the reflected light, electric signal is obtained, specifically:
The reflected light is obtained, and the reflected light is converted into wavelength signals；
Photoelectric conversion processing is carried out to the wavelength signals, obtains electric signal.
Further, the preset SCM program, for the electric signal to be converted to digital signal, and with described
Life value of the digital signal as formaldehyde removal strainer.
Further, according to preset SCM program and the electric signal, the longevity of the formaldehyde removal strainer is obtained
After life value, further includes:
The value of service life of the life value of formaldehyde removal strainer and formaldehyde removal strainer is shown
Show.
Further, the compositing formula of the color developing agent includes hydroxylamines, and the hydroxylamines are methyl orange, but
It is not limited to other hydroxylamines that chromogenic reaction can occur with formaldehyde.
Preferably, the present invention also provides a kind of display devices in air purifier active carbon filter screen service life, comprising: extracts
Module, colour developing module, processing module and conversion module；
The extraction module for obtaining the gas being discharged from formaldehyde removal strainer, and extracts first from the gas kind
Aldehyde sample；
The colour developing module obtains showing color for the formaldehyde to be placed on to pretreated colour developing substrate
First base material；
The processing module is radiated at the reflected light reflected in the first base material for obtaining specific wavelength light source,
Conversion process is carried out to the reflected light, obtains electric signal；
The conversion module, for obtaining the formaldehyde removal filter according to preset SCM program and the electric signal
The life value of net.
Further, the colour developing module includes applicator unit and chromogenic reaction unit；
The applicator unit, the colour developing that there is chromogenic reaction for uniformly smearing PARA FORMALDEHYDE PRILLS(91,95) pollutant on colour developing substrate
Agent obtains pretreated colour developing substrate；
The chromogenic reaction unit, for formaldehyde sample to be placed on the pretreated colour developing substrate, so that institute
It states formaldehyde and chromogenic reaction occurs for the color developing agent, obtain first base material.
Further, the processing module includes first processing units and the second processing unit；
The first processing units are converted to wavelength signals for obtaining the reflected light, and by the reflected light；
Described the second processing unit obtains electric signal for carrying out photoelectric conversion processing to the wavelength signals.
Further, the display device in the air purifier active carbon filter screen service life further include: display module；
The display module, for the life value of formaldehyde removal strainer and the formaldehyde to have been removed strainer
Service life value is shown.
Compared with prior art, it has the following beneficial effects:
The display methods in air purifier active carbon filter screen service life provided in an embodiment of the present invention, by using specific wavelength
Light source irradiates formaldehyde and the part of substrate generation chromogenic reaction of developing the color, and the reflected light reflected progress conversion process is obtained telecommunication
Number, and electric signal is converted to by digital signal using preset SCM program, the life value of formaldehyde removal strainer is obtained, is convenient for
User replaces strainer according to the service life that formaldehyde removes strainer in time, avoids the pollution to environment.
Detailed description of the invention
Fig. 1 is the process of one embodiment of the display methods in air purifier active carbon filter screen service life provided by the invention
Schematic diagram；
Fig. 2 is the structure of one embodiment of the display device in air purifier active carbon filter screen service life provided by the invention
Schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is an implementation of the display methods in air purifier active carbon filter screen service life provided by the invention referring to Fig. 1, Fig. 1
The flow diagram of example；The embodiment of the present invention provides a kind of display methods in air purifier active carbon filter screen service life, including step
Rapid S1 to S4；
S1 obtains the gas being discharged from formaldehyde removal strainer, and extracts formaldehyde sample from gas kind.
In the present embodiment, the amount for acquiring formaldehyde sample is 10mL, wherein specifically takes the amount of formaldehyde sample can basis
Actual conditions are adjusted.
Actual temp is 23 DEG C ± 0.5 DEG C when acquisition, acquires specific humidity are as follows: 45% ± 3%R.H；Wherein, temperature collection
Range is 10 DEG C~100 DEG C, acquires humidity range: 40%~98%R.H.
It should be noted that the humidity when temperature when acquisition is 23 DEG C ± 0.5 DEG C, acquires is 45% ± 3%R.H,
It can be improved the purity of extracted formaldehyde sample, otherwise can reduce the purity of the formaldehyde sample of extraction.
Formaldehyde is placed on pretreated colour developing substrate, obtains the first base material for showing color by S2.
In embodiments of the present invention, step S2 specifically: PARA FORMALDEHYDE PRILLS(91,95) pollutant is uniformly smeared on colour developing substrate with aobvious
The color developing agent of colour response obtains pretreated colour developing substrate；Formaldehyde sample is placed on pretreated colour developing substrate, with
Make formaldehyde and color developing agent that chromogenic reaction occur, obtains first base material.
Wherein, the colour developing substrate can find that colour developing is anti-for non-woven fabrics, silica gel, aluminium oxide, ceramics, paper etc. easily
The colour developing substrate answered；The compositing formula of the color developing agent includes hydroxylamines, and hydroxylamines are methyl orange, but are not limited to
Other hydroxylamines that chromogenic reaction can occur with formaldehyde.
In the present embodiment, it is reacted by formaldehyde with hydroxylamines, generates acids and change pH value, so that methyl orange becomes
Color realizes colourshifting process.
S3 obtains specific wavelength light source and is radiated at the reflected light reflected in first base material, carries out at conversion to reflected light
Reason, obtains electric signal.
In embodiments of the present invention, step S3 specifically: obtain reflected light, and convert the reflected light into wavelength signals；It is right
Wavelength signals carry out photoelectric conversion processing, obtain electric signal.
It should be noted that using specific wavelength light source irradiate colour developing substrate (colour developing substrate itself can be reacted with formaldehyde,
The different stages of reaction, it is corresponding that colour developing substrate has different colors), colour developing substrate can reflect the light of different wave length.Reflection
Light be photoelectrically converted sensor receive (sensor can identify specific wavelength according to the reflected light of different colours,
Such as the specific wavelength of light in reflected light can be identified by specific photodiode group battle array；And by increasing component
Mode expands the screening to different wave length), and wavelength signals are converted into electric signal by photoelectric conversion sensor.
The principle of specific wavelength of light sensor group battle array foundation is as shown in the table:
| Color | Wavelength (mm) |
| It is red | 650-800 |
| It is orange | 590-640 |
| Yellow | 550-580 |
| Green | 490-530 |
| Blue | 460-480 |
| It is indigo | 440-450 |
| Purple | 390-430 |
S4 obtains the life value of formaldehyde removal strainer according to preset SCM program and electric signal.
In embodiments of the present invention, the program of single-chip microcontroller is to observe the power of the simulation electric signal of photosensitive tube output, then pass through
The conversion for crossing program is converted to digital signal, that is, the process of an analog-to-digital conversion.
It should be noted that the output electric signal of specific wavelength of light photosensitive tube has changed to list as material color changes
Limit value set by piece machine program, therefore, it is determined that being strainer end-of-life.It is one turn that wavelength signals are converted to life value
It changes.
As the preferred embodiment of the present invention, after step s4 further include: by the life value of formaldehyde removal strainer, Yi Jijia
The value of service life of aldehyde removal strainer is shown.
Preferably, the life value of formaldehyde removal strainer is displayed on the screen using LED display, so that user checks.
Further, the service life of formaldehyde removal strainer is also displayed on the screen by the present embodiment.
Wherein, the service life is a pre-set life value, and service life is to subtract formaldehyde by preset life value
The life value of strainer is removed, LED screen shows service life/still remaining life value.
By the remaining lifetime value of formaldehyde removal strainer and service life value is displayed on the screen, and user can be allowed to supervise in real time
The life value of formaldehyde removal strainer is controlled, and replacement strainer is carried out according to the remaining lifetime value of display.
Preferably, the LED display is also used to show the concentration value of formaldehyde, and usable family can monitor formaldehyde in real time
Concentration, it is excessively high to avoid the occurrence of concentration of formaldehyde, injures caused by human body.
It should be noted that concentration of formaldehyde is denseer, material discoloration is faster, and electric signal faster reaches the limit of single-chip microcontroller setting
Value, as a result, according to material discoloration speed come judge formaldehyde concentration whether too high levels.
It as another preferred embodiment of the invention, can also be calculated according to obtained digital signal, obtain first
The concentration value of aldehyde, so that user can get information about the concentration value of Formaldehyde in Environment.
Fig. 2 is referred to, Fig. 2 is a reality of the display device in air purifier active carbon filter screen service life provided by the invention
The structural schematic diagram of example is applied, the display device in air purifier active carbon filter screen service life includes: extraction module, colour developing module, place
Manage module and conversion module；
Extraction module is used to obtain the gas being discharged from formaldehyde removal strainer, and extracts formaldehyde sample from gas kind；It is aobvious
Color module obtains the first base material for showing color for formaldehyde to be placed on to pretreated colour developing substrate；Processing module
It is radiated at the reflected light reflected in first base material for obtaining specific wavelength light source, conversion process is carried out to reflected light, is obtained
Electric signal；Conversion module is used to obtain the concentration values of formaldehyde according to preset SCM program and electric signal.
In embodiments of the present invention, colour developing module includes applicator unit and chromogenic reaction unit；Applicator unit is used for aobvious
The color developing agent that PARA FORMALDEHYDE PRILLS(91,95) pollutant has chromogenic reaction is uniformly smeared on color base material, obtains pretreated colour developing substrate；Colour developing
Formaldehyde sample for being placed on pretreated colour developing substrate by reaction member, so that colour developing occurs for formaldehyde and color developing agent instead
It answers, obtains first base material.
Preferably, processing module includes first processing units and the second processing unit；First processing units are anti-for obtaining
Light is penetrated, and converts the reflected light into wavelength signals；The second processing unit is used to carry out photoelectric conversion processing to wavelength signals, obtains
Electric signal.
Preferably, the display device in air purifier active carbon filter screen service life provided by the invention further include: display module,
For the value of service life of the life value of formaldehyde removal strainer and formaldehyde removal strainer to be shown.
In conclusion the display methods and device in air purifier active carbon filter screen service life provided in an embodiment of the present invention,
The part that chromogenic reaction is occurred by using specific wavelength light source irradiation formaldehyde and the substrate that develops the color, the reflected light reflected is carried out
Conversion process obtains electric signal, and the life value of formaldehyde removal strainer, Neng Gouzhi are calculated using preset SCM program
That sees sees the service life of formaldehyde removal strainer, removes the service life of strainer according to formaldehyde convenient for user to carry out replacement filter
Net.
The display methods in air purifier active carbon filter screen service life provided by the invention, has the advantages that
(1) it can correctly indicate the service life of the gaseous pollutants such as formaldehyde: use preset SCM program by telecommunication
Number digital signal is converted to, obtains the life value of formaldehyde removal strainer, can intuitively see formaldehyde removal strainer uses the longevity
Life.
(2) supply the missing technology of existing market: by display module by formaldehyde remove strainer the value of service life and
Remaining lifetime value is shown, has been supplied the missing technology of existing market, can fast and accurately have been shown numerical value, reach energy
Indicate the purpose of the actual life of strainer.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of display methods in air purifier active carbon filter screen service life characterized by comprising
The gas being discharged from formaldehyde removal strainer is obtained, and extracts formaldehyde sample from the gas kind；
The formaldehyde is placed on pretreated colour developing substrate, obtains the first base material for showing color；
It obtains specific wavelength light source and is radiated at the reflected light reflected in the first base material, the reflected light is carried out at conversion
Reason, obtains electric signal；
According to preset SCM program and the electric signal, the life value of the formaldehyde removal strainer is obtained.
2. the display methods in air purifier active carbon filter screen service life as described in claim 1, which is characterized in that described by institute
It states formaldehyde to be placed on pretreated colour developing substrate, obtains the first base material for showing color, specifically:
The color developing agent that PARA FORMALDEHYDE PRILLS(91,95) pollutant has chromogenic reaction is uniformly smeared on colour developing substrate, obtains pretreated fast eolor base
Material；
Formaldehyde sample is placed on the pretreated colour developing substrate, so that the formaldehyde develops the color with the color developing agent
Reaction, obtains first base material.
3. the display methods in air purifier active carbon filter screen service life as described in claim 1, which is characterized in that described to institute
It states reflected light and carries out conversion process, obtain electric signal, specifically:
The reflected light is obtained, and the reflected light is converted into wavelength signals；
Photoelectric conversion processing is carried out to the wavelength signals, obtains electric signal.
4. the display methods in air purifier active carbon filter screen service life as described in claim 1, which is characterized in that described default
SCM program, for the electric signal to be converted to digital signal, and removed using the digital signal as the formaldehyde
The life value of strainer.
5. the display methods in air purifier active carbon filter screen service life as described in claim 1, which is characterized in that according to pre-
If SCM program and the electric signal, after obtaining the life value of formaldehyde removal strainer, further includes:
The value of service life of the life value of formaldehyde removal strainer and formaldehyde removal strainer is shown.
6. the display methods in air purifier active carbon filter screen service life as claimed in claim 2, which is characterized in that the colour developing
The compositing formula of agent includes hydroxylamines, and the hydroxylamines are methyl orange, but are not limited to other to occur with formaldehyde
The hydroxylamines of chromogenic reaction.
7. a kind of display device in air purifier active carbon filter screen service life characterized by comprising extraction module, colour developing mould
Block, processing module and conversion module；
The extraction module for obtaining the gas being discharged from formaldehyde removal strainer, and extracts formaldehyde sample from the gas kind
Product；
The colour developing module obtains show color for the formaldehyde to be placed on to pretreated colour developing substrate
One substrate；
The processing module is radiated at the reflected light reflected in the first base material for obtaining specific wavelength light source, to institute
It states reflected light and carries out conversion process, obtain electric signal；
The conversion module, for obtaining the formaldehyde removal strainer according to preset SCM program and the electric signal
Life value.
8. the display device in air purifier active carbon filter screen service life as claimed in claim 7, which is characterized in that the colour developing
Module includes applicator unit and chromogenic reaction unit；
The applicator unit, the color developing agent for having chromogenic reaction for uniformly smearing PARA FORMALDEHYDE PRILLS(91,95) pollutant on colour developing substrate, obtains
To pretreated colour developing substrate；
The chromogenic reaction unit, for formaldehyde sample to be placed on the pretreated colour developing substrate, so that the first
Chromogenic reaction occurs for aldehyde and the color developing agent, obtains first base material.
9. the display device in air purifier active carbon filter screen service life as claimed in claim 7, which is characterized in that the processing
Module includes first processing units and the second processing unit；
The first processing units are converted to wavelength signals for obtaining the reflected light, and by the reflected light；
Described the second processing unit obtains electric signal for carrying out photoelectric conversion processing to the wavelength signals.
10. the display device in air purifier active carbon filter screen service life as claimed in claim 7, which is characterized in that further include:
Display module；
The display module, for the life value of formaldehyde removal strainer and the formaldehyde to be removed to the use of strainer
Life value is shown.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910217148.3A CN109959116A (en) | 2019-03-21 | 2019-03-21 | A kind of display methods and device in air purifier active carbon filter screen service life |
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|---|---|---|---|
| CN201910217148.3A CN109959116A (en) | 2019-03-21 | 2019-03-21 | A kind of display methods and device in air purifier active carbon filter screen service life |
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Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484736A (en) * | 2021-12-29 | 2022-05-13 | 宁波乐歌海生智家科技有限公司 | Control method for dust removal of filter screen and air purifier |
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