CN107975923B - Air purifier and control method and system thereof - Google Patents
Air purifier and control method and system thereof Download PDFInfo
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- CN107975923B CN107975923B CN201711069322.1A CN201711069322A CN107975923B CN 107975923 B CN107975923 B CN 107975923B CN 201711069322 A CN201711069322 A CN 201711069322A CN 107975923 B CN107975923 B CN 107975923B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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Abstract
The invention discloses an air purifier and a control method and a system thereof, wherein the method comprises the following steps: the method comprises the following steps of obtaining the attribute of particles in the air, wherein the attribute of the particles is obtained by carrying out source analysis on the particles in the air, and the attribute of the particles comprises the following steps: any one or any combination of particulate matter components, sources and particle sizes; and adjusting the working mode of the air purifier according to the attribute of the particulate matter. According to the action that the particulate matter control air purifier of different attributes carried out and particulate matter attribute corresponds, can control the length of the dwell time of the particulate matter of different sources in the middle of the filter screen, improve filter screen adsorption efficiency to can the corresponding voltage of adjusting different particle diameter sections in the electrostatic precipitator, reduce power consumptively by a wide margin, the accurate dust removal.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an air purifier and a control method and system thereof.
Background
Along with air pollution is more and more serious, people require more and more high to indoor air quality, and air purifier can get rid of the suspended particles in the air, provides comparatively clear air for people.
At present, the air purifier mainly adopts a purification mode of mechanical filter screen type, electrostatic electret filter screen type, high-voltage electrostatic dust collection, negative ions, plasma and the like. Generally, an air purifier sucks air through a pump with rated power, and achieves the corresponding effect of removing suspended particulate matters in the air through a filter screen adsorption or charge enrichment mode. However, because the particulate matters have different properties, such as different sources, different particle sizes, different chemical compositions, and the like, the migration modes of the particulate matters in the air flow field and/or the electric field are greatly different, and because the conventional air purifier generally uses a rated power to suck air and does not distinguish different particulate matters, a part of the particulate matters may be poorly removed, for example, in the air purifier for removing PM2.5, when the particulate matters in PM10 are more, the particulate matters in PM10 are poorly removed, and the particulate matters cannot be directionally removed in real time according to the properties of the particulate matters in the air. In the prior art, the range of particle sizes of particles to be removed can be increased by reducing the air inlet amount or increasing the area of the filter screen or increasing the voltage of the electric field of the charge plate, however, a problem of poor effect of removing a part of particles may exist, and reducing the air inlet amount may cause low overall purification efficiency of the air purifier, and increasing the area of the filter screen or increasing the voltage of the electric field of the charge plate may cause increased energy consumption of the air purifier.
Therefore, how to achieve directional removal for different particles becomes an urgent problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of realizing directional removal aiming at different particles.
To this end, according to a first aspect, an embodiment of the present invention provides an air purifier control method, which may include the steps of: obtain the attribute of particulate matter in the air, the attribute of particulate matter carries out the source analysis through particulate matter in to the air and obtains, and the particulate matter attribute includes: any one or any combination of particulate matter components, sources and particle sizes; and adjusting the working mode of the air purifier according to the property of the particulate matter.
Optionally, obtaining the property of the particulate matter in the air comprises: screening the particles in the air to obtain single particles; analyzing the single particles to obtain characteristic indicators in the single particles; the property of the particulate matter is identified by the characteristic indicator.
Optionally, the air purifier comprises: a filter screen type air purifier and/or an electric dust removal type air purifier; adjusting the operating mode of the air purifier according to the property of the particulate matter, comprising: adjusting the air inlet flow and/or the filter screen angle of the filter screen type air purifier according to the attribute of the single particulate matter; and/or, adjusting the working mode of the air purifier according to the property of the particulate matters, comprising: and adjusting the air intake flow and/or the electric field voltage of the charge plate of the electric dust removal type air purifier according to the properties of the single particles.
Optionally, after obtaining the property of the particulate matter in the air, the method further includes: and sending prompt information for representing the source of the particulate matters according to the attributes of the particulate matters.
According to a second aspect, embodiments of the present invention provide an air purifier control system comprising: the source analytic device for carry out the source analysis to the particulate matter in the air, obtain the attribute of particulate matter, the particulate matter attribute includes: any one or any combination of particulate sources, ingredients and particle sizes; and the controller is connected with the source analysis device and used for adjusting the working mode of the air purifier according to the attribute of the particulate matter.
Optionally, the source parsing apparatus includes: the single particle screening module is used for screening particles in the air to obtain single particles; and the single particle identification module is used for identifying the single particles according to the characteristic indicators in the single particles to obtain the attributes of the single particles.
Optionally, a single particulate matter screening module, comprising: the filtering unit is used for filtering out the particulate matters with the particle size larger than a preset value from the particulate matters in the air; and the single-particle lens is used for screening the filtered particles to obtain single particles.
Optionally, the single particle identification module comprises: the ion source bombardment unit is used for bombarding single particles by positive and negative ions to obtain ion fragments with specific charge-mass ratios; the bias magnetic field unit is connected with the ion source bombardment unit and is used for sorting the ion fragments to obtain the ion fragments with different charge-to-mass ratios; the photomultiplier receives the ion fragments with different charge-to-mass ratios and is used for generating electric signals corresponding to the ion fragments with different charge-to-mass ratios; the electric signal detector is used for detecting the occupation ratios of the ion fragments with different charge-mass ratios according to the electric signals; and the identification unit is used for comparing the ion fragments with the highest charge-to-mass ratio as characteristic indicators with a preset source emission spectrum, and identifying the attribute of the single particle.
Optionally, the air purifier comprises: a filter screen type air purifier and/or an electric dust removal type air purifier; the controller is used for adjusting the air inlet flow and/or the filter screen angle of the filter screen type air purifier according to the attribute of the single particulate matter; and/or the controller is used for adjusting the air inlet flow and/or the electric field voltage of the charge plate of the electric dust removal type air purifier according to the attribute of the single particulate matter.
Optionally, the method further comprises: and the prompting device is used for sending out prompting information for representing the source of the single particulate matter according to the attribute of the particulate matter.
According to a third aspect, embodiments of the present invention provide an air purifier comprising: an air purifier body; a control system for a purifier as described in the second aspect above.
Optionally, the air purifier comprises: a screen type air purifier and/or an electric dust removal type air purifier.
The embodiment of the invention provides an air purifier and a control method and system thereof, which are used for carrying out source analysis on particles in air to obtain the attributes of the particles in the air, such as the components, sources or particle sizes of the particles, controlling the air purifier to execute actions corresponding to the attributes of the particles according to the particles with different attributes, controlling the retention time of the particles with different sources in a filter screen, improving the adsorption efficiency of the filter screen, correspondingly adjusting the voltages of different particle size sections in electric precipitation, greatly reducing the power consumption and accurately removing dust.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart illustrating a control method of an air cleaner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an air purifier control system according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention provides a control method of an air purifier, which comprises the following steps as shown in figure 1:
s10, obtaining the attribute of the particles in the air. In this embodiment, the property of the particles in the air may include any one or any combination of the composition of the particles, the source of the particles, the particle size of the particles. In this embodiment, the particulate matter in the air may include: the particle size of the particulate matter can be PM2.5, PM10 and the like, the source of the particulate matter can be dust, textile fabric dust, factory exhaust gas and the like, and the components of the particulate matter can be organic matters, inorganic matters and living matters. The attribute of different particulate matters is different in the air flow field, and the migration is different in the electric field to the attribute of particulate matter is the particle size description of particulate matter, and the particle size is big more, and the required amount of wind of air purifier is big more, and required filter screen area is big more, and in electrostatic precipitator, the particle size is big more, and required charged plate electric field voltage is big more. In this embodiment, the particle properties are obtained by performing source analysis on the particles in the air. The properties of the particles can be obtained by quantitative or qualitative analysis of the particles in the air.
And S20, adjusting the working mode of the air purifier according to the attribute of the particulate matter. In a specific embodiment, the electrostatic dust collecting net with the same voltage has different aggregation effects on different particles due to the obvious difference of migration of different particles in an electric field or an air field and the difference of residence time of particles from different sources in the filter net. In this embodiment, air purifier can filter screen formula air purifier, can adjust air intake flow and/or filter screen angle according to the attribute of particulate matter, for example, the particulate matter is the particulate matter of PM10, filter screen formula air purifier with first air input and/or filter screen with first angle work, when detecting that the particulate matter is PM2.5, control filter screen formula air purifier and adjust the air input to the second air input and/or with the angle adjustment second angle of filter screen, can guarantee the dwell time difference of the particulate matter of different particle sizes in the filter screen, can carry out directional the getting rid of it to the attribute of particulate matter, increase substantially filter screen adsorption efficiency. In this embodiment, air purifier can electric precipitation type air purifier, because the motion trail of the particulate matter of different particle diameters or different compositions in the electric field is different, will reach same adsorption effect, required charged plate electric field voltage is different, in this embodiment, can be to the attribute adjustment charged plate electric field voltage and/or filter screen angle of particulate matter, for example, the PM10 particulate matter can adopt higher amount charged plate electric field voltage to purify, the PM2.5 particulate matter can adopt lower charged plate electric field voltage to adjust. The source analysis is carried out to particulate matter in the air to obtain the attribute of particulate matter in the air, for example, the composition, the source or the particle diameter of particulate matter, and according to the action that particulate matter control air purifier of different attributes carried out and corresponds with the particulate matter attribute, the dwell time's of particulate matter in the middle of the filter screen of different sources length can be controlled, filter screen adsorption efficiency is improved to can correspondingly adjust the voltage of different particle diameter sections in the electrostatic precipitator, reduce power consumption by a wide margin, the accurate dust removal.
In order to ensure the air purification effect, in an optional embodiment, prompt information for representing the source of the particulate matters can be sent according to the attributes of the particulate matters, and the attributes of the particulate matters are obtained through source analysis, so that the source of the particulate matters can be obtained. The prompt message can be a voice prompt message sent according to the particulate matter source, and prompts the user to reduce the activity capable of generating the particulate matter source, for example, the main source of the particulate matter in the air is dust, and after the source of the particulate matter is determined, the user can be prompted that the indoor dust exceeds the standard, the room needs to be cleaned, and the like.
In an optional embodiment, after obtaining the attribute of the particulate matter in the air, the attributes of the various particulate matters may be obtained, the proportion of the various particulate matters in the air may be analyzed according to the attribute of the particulate matters, and the operating mode of the air purifier may be adjusted according to the proportion of the particulate matters in different air, for example, according to the attribute analysis of the particulate matters, the proportion of the dust in the air is 80%, the proportion of the textile fiber dust is 15%, the proportion of the other particulate matters is 5%, and the air purifier may be adjusted to operate in a dust removal operating mode according to the proportion of the different particulate matters.
An embodiment of the present invention further provides an air purification control system, which may be integrated in an air purifier, as shown in fig. 2, and the control system includes:
the source analysis device 100 is used for performing source analysis on the particulate matters in the air to obtain the attributes of the particulate matters. In this embodiment, the particulate matter properties include: any one or any combination of the components, sources and particle sizes of the microparticles. And the controller 200 is connected with the source analysis device and used for adjusting the working mode of the air purifier according to the attribute of the particulate matter. The source analysis is carried out to particulate matter in the air to obtain the attribute of particulate matter in the air, for example, the composition, the source or the particle diameter of particulate matter, and according to the action that particulate matter control air purifier of different attributes carried out and corresponds with the particulate matter attribute, the dwell time's of particulate matter in the middle of the filter screen of different sources length can be controlled, filter screen adsorption efficiency is improved to can correspondingly adjust the voltage of different particle diameter sections in the electrostatic precipitator, reduce power consumption by a wide margin, the accurate dust removal.
To ensure that the particles in the air are removed in a more effective and directional manner, the particles in the air need to be resolved more accurately, as shown in fig. 2, in an alternative embodiment, the source resolving device may include: the single particle screening module 110 is used for screening particles in the air to obtain single particles; and the single particle matter identification module 120 is used for identifying the single particle matter according to the characteristic indicators in the single particle matter to obtain the attribute of the single particle matter. In this embodiment, the particulate matter in the air may be many kinds, for guaranteeing comparatively accurate analysis, need filter the particulate matter, carry out single particulate matter screening to it through single particulate matter screening module, select the single particulate matter of the most content in the air, the screening condition can be the composition of particulate matter, the particle diameter of particulate matter or the source of particulate matter, can reduce the influence of particulate matter in the difference to the analytic result, different kinds of particulate matter all have characteristic indicator, single particulate matter identification module 120 can contrast the source emission spectrum of having type, confirm the attribute of particulate matter.
In an alternative embodiment, as shown in FIG. 2, the single particulate matter screening module 110 may include: and the filtering unit is used for filtering out the particulate matters with the particle size larger than a preset value in the air. And the single-particle lens 112 is used for screening the filtered particles. In this embodiment, the filtering unit, which may be a direct interception type filtering unit, mechanically intercepts the particles by a sieving effect, for example, a screen, and intercepts the particles having a size larger than the pore size thereof. The filtering unit can also be a collision type filter, the speeds of different particle sizes are different, and particles with proper particle sizes can be screened out through collision. The single particle lens can be a single particle lens which can allow a certain range of particle sizes to pass through.
In an alternative embodiment, as shown in FIG. 2, the single particle identification module 120 may include: the ion source bombardment unit 121 is used for bombarding single particles by positive and negative ions to obtain ion fragments with a specific charge-to-mass ratio; the bias magnetic field unit 122 is connected with the ion source bombardment unit and is used for sorting the ion fragments to obtain the ion fragments with different charge-to-mass ratios; the photomultiplier 123 receives the ion fragments with different charge-to-mass ratios and is used for generating electric signals corresponding to the ion fragments with different charge-to-mass ratios; an electric signal detector 124 for detecting the fraction of ion fragments of different charge-to-mass ratios according to the electric signal; and the identification unit 125 is used for comparing the ion fragments with the highest charge-to-mass ratio as characteristic indicators with a preset source emission spectrum, and identifying the attribute of the single particle. In this embodiment, the ion source bombarding unit 121 may comprise an ion source for generating positive and negative ions, bombarding the single particle matter with the positive and negative ions, and bombarding the single particle matter into ion fragments, wherein the ion fragments comprise a specific charge-to-mass ratio. Because the ion fragments contain different charge-to-mass ratios, in this embodiment, the bias magnetic field unit 122 can screen and classify the ion fragments with specific charge-to-mass ratios, the end of the bias magnetic field unit 122 is connected with the photomultiplier 123, which can convert the ion fragments with specific charge-to-mass ratios into corresponding electrical signals and amplify the electrical signals, and the electrical signal detector 124 detects the electrical signals to identify the grouping conditions of the ion fragments with different charge-to-mass ratios, so as to obtain the occupation ratios of the ion fragments with different charge-to-mass ratios. The recognition unit 125 screens out the ion fragments with the highest charge-to-mass ratio, and uses the ion fragments as the characteristic indicator of the single particle, and indicates the source or the component of the single particle through a preset source emission spectrum. The controller will adjust the inlet air flow and/or the charge plate electric field voltage of the electric precipitation type air purifier according to the source or composition of the single particulate matter identified by the identification unit 125. Alternatively, the controller adjusts the intake air flow rate and/or the screen angle of the screen-type air purifier according to the source or composition of the single particulate matter identified by the identification unit 125. Therefore, the efficient directional dust removal is performed aiming at different sources.
In an alternative embodiment, the identification unit 125 feeds back the identified source or composition of the particulate matter to the controller, and the controller may prompt the user for the source of the particulate matter through the prompting device 300 and prompt the user to reduce the activity of generating the source of the particulate matter, such as detecting PM2.5 particles, and may prompt the user to close the window to prevent the outdoor air from polluting the indoor air. In this embodiment, the prompting device 300 may be a display, a speaker, a user may be prompted by displaying a prompting slogan, or a user may be prompted by voice.
The embodiment of the invention also provides an air evolutionary device, which comprises the air purification control system and an air purifier body. In this embodiment, air purifier can be filter screen formula air purifier, also can be electric precipitation formula air purifier.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. An air purifier control method, comprising:
the method comprises the following steps of obtaining the attribute of particles in the air, wherein the attribute of the particles is obtained by carrying out source analysis on the particles in the air, and the attribute of the particles comprises the following steps: any one or any combination of particulate matter components, sources and particle sizes;
adjusting the working mode of the air purifier according to the attribute of the particulate matter;
the attribute of obtaining particulate matter in the air includes: screening the particles in the air to obtain single particles; analyzing the single particles to obtain characteristic indicators in the single particles; identifying a property of the particulate matter by the characteristic indicator;
wherein identifying the property of the particulate matter by the characteristic indicator comprises:
bombarding the single particle by positive and negative ions to obtain ion fragments with a specific charge-to-mass ratio;
sorting the ion fragments to obtain the ion fragments with different charge-to-mass ratios;
receiving the ion fragments with different charge-to-mass ratios, and generating electric signals corresponding to the ion fragments with different charge-to-mass ratios;
detecting the occupation ratios of the ion fragments with different charge-to-mass ratios according to the electric signals;
and taking the ion fragments with the highest charge-to-mass ratio as the characteristic indicators to be compared with a preset source emission spectrum, and identifying the attribute of the single particle.
2. The air purifier control method according to claim 1, wherein the air purifier includes: a filter screen type air purifier and/or an electric dust removal type air purifier;
adjusting the working mode of the air purifier according to the property of the particulate matter, comprising:
adjusting the inlet air flow and/or the filter screen angle of the filter screen type air purifier according to the attribute of the single particle;
and/or the presence of a gas in the gas,
adjusting the working mode of the air purifier according to the property of the particulate matter, comprising:
and adjusting the air intake flow and/or the electric field voltage of the charge plate of the electric dust removal type air purifier according to the properties of the single particles.
3. The air cleaner control method according to claim 1 or 2, further comprising, after the obtaining of the property of the particulate matter in the air:
and sending prompt information for representing the source of the particulate matters according to the attributes of the particulate matters.
4. An air purifier control system, comprising:
the source analysis device is used for carrying out source analysis on the particles in the air to obtain the properties of the particles, and the properties of the particles comprise: any one or any combination of particulate sources, ingredients and particle sizes;
the controller is connected with the source analysis device and used for adjusting the working mode of the air purifier according to the attribute of the particulate matter;
the source resolving device includes: the single particle screening module is used for screening particles in the air to obtain single particles; the single particle identification module is used for identifying the single particles according to the characteristic indicators in the single particles to obtain the attributes of the single particles;
wherein the single particulate matter identification module includes:
the ion source bombardment unit is used for bombarding the single particle by positive and negative ions to obtain ion fragments with specific charge-to-mass ratios;
the bias magnetic field unit is connected with the ion source bombardment unit and is used for sorting the ion fragments to obtain the ion fragments with different charge-to-mass ratios;
the photomultiplier receives the ion fragments with different charge-to-mass ratios and is used for generating electric signals corresponding to the ion fragments with different charge-to-mass ratios;
the electric signal detector is used for detecting the occupation ratios of the ion fragments with different charge-mass ratios according to the electric signals;
and the identification unit is used for comparing the ion fragments with the highest charge-to-mass ratio as the characteristic indicators with a preset source emission spectrum, and identifying the attributes of the single particles.
5. The air purifier control system of claim 4 wherein the single particulate matter screening module comprises:
the filtering unit is used for filtering out the particulate matters with the particle size larger than a preset value from the particulate matters in the air;
and the single-particle lens is used for screening the filtered particles to obtain single particles.
6. The air purifier control system of claim 4, wherein the air purifier comprises: a filter screen type air purifier and/or an electric dust removal type air purifier;
the controller is used for adjusting the air inlet flow and/or the filter screen angle of the filter screen type air purifier according to the attribute of the single particle;
and/or the presence of a gas in the gas,
the controller is used for adjusting the air intake flow and/or the electric charge plate electric field voltage of the electric dust removal type air purifier according to the attribute of the single particulate matter.
7. The air purifier control system of any one of claims 4-6, further comprising:
and the prompting device is used for sending out prompting information for representing the source of the single particulate matter according to the attribute of the particulate matter.
8. An air purifier, comprising:
an air purifier body;
an air purifier control system as claimed in any one of claims 4 to 6.
9. The air purifier of claim 8,
the air purifier includes: a screen type air purifier and/or an electric dust removal type air purifier.
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| CN112146192A (en) * | 2019-06-28 | 2020-12-29 | 广东美的制冷设备有限公司 | Air purification assembly, control method and device, air conditioner and storage medium |
| CN111637607A (en) * | 2020-05-26 | 2020-09-08 | 北京海林节能科技股份有限公司 | Method and system for improving air quality |
| CN114413427B (en) * | 2021-12-29 | 2023-08-15 | 海信空调有限公司 | Air conditioner, dust removal control method and device thereof and storage medium |
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| CN103674789A (en) * | 2013-12-26 | 2014-03-26 | 中国环境科学研究院 | Atmospheric particulate real-time source analytic method based on single-particle mass spectrums |
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| JP3502259B2 (en) * | 1998-05-08 | 2004-03-02 | 松下エコシステムズ株式会社 | Particle detector |
| JP2008073682A (en) * | 2006-08-24 | 2008-04-03 | Mitsubishi Heavy Ind Ltd | Treatment system and treatment method for asbestos-based waste |
| US8585799B2 (en) * | 2010-06-15 | 2013-11-19 | Empire Technology Development Llc | Air pre-treatment device |
| CN102608009A (en) * | 2011-12-14 | 2012-07-25 | 河北先河环保科技股份有限公司 | Automatic particle monitor |
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| CN202460313U (en) * | 2012-03-21 | 2012-10-03 | 黄成辉 | Air purification device with intelligent detection and selective filtration functions |
| CN103674789A (en) * | 2013-12-26 | 2014-03-26 | 中国环境科学研究院 | Atmospheric particulate real-time source analytic method based on single-particle mass spectrums |
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