CN110410940B - Intelligent air quantity calculation and control method of electrostatic adsorption dust removal fresh air system - Google Patents
Intelligent air quantity calculation and control method of electrostatic adsorption dust removal fresh air system Download PDFInfo
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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
- 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
- F24F11/46—Improving electric energy efficiency or saving
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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
- 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
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/52—Air quality properties of the outside air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
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- Mathematical Physics (AREA)
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- Ventilation (AREA)
- Electrostatic Separation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an intelligent air volume calculating and controlling method of an electrostatic adsorption dust removal fresh air system, wherein the fresh air system comprises an external air quality sensor group, a fan, a heater, an electrode type air purifier, an internal air quality sensor group and an air passage, a group of ventilation volume data is calculated and obtained by taking external air temperature and humidity, indoor and outdoor air pressure difference, static ventilation volume and air passage sectional area as data bases, and another group of ventilation volume data is calculated and obtained by taking indoor and outdoor pressure difference, static ventilation volume and air passage sectional area as data bases. And after the two groups of data are fitted, obtaining the related actual ventilation. The ventilation quantity calculation method is accurate and reliable, and accurate data can be obtained by fully depending on a plurality of indoor and outdoor data parameters. The obtained ventilation data can provide a data base for the subsequent heating power and purification power of the fresh air system.
Description
Technical Field
The invention relates to the technical field of fresh air conditioners, in particular to an intelligent air quantity calculation and control method of an electrostatic adsorption dust removal fresh air system.
Background
In current new trend system, when the process of improving air quality, because restricted and purification unit's structure or power restriction, generally adopt same power to purify, when indoor outer air quality is poor great, need improve purification efficiency, when indoor outer air quality is poor less, can suitably reduce purification efficiency, the energy saving.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an intelligent air quantity calculation and control method of an electrostatic adsorption dust removal fresh air system.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent air quantity calculation and control method of an electrostatic adsorption dust removal fresh air system comprises an external air quality sensor group, a fan, a heater, an electrode type air purifier, an internal air quality sensor group and an air passage, wherein the air quality sensor group is used for collecting outdoor air related data including outdoor PM2.5 concentration PMOOutdoor temperature TOAnd humidity RHOOutdoor air pressure PoThe internal air quality sensor group is used for collecting indoor air related data including indoor PM2.5 concentration PMiAnd the indoor air pressure Pi(ii) a The air passage is communicated with the outdoor space, the fan, the heater, the electrode type air purifier and the indoor space in sequence;
the method is characterized in that: the purifying power of the electrode type air purifier is controlled through the indoor and outdoor pressure difference, and the specific control method comprises the following steps:
step 1, collecting data, namely collecting outdoor air related data through an external air quality sensor group, collecting indoor air related data through an internal air quality sensor group, and checking that the static ventilation quantity of a fan is Q through the power I of the fan, and the pipeline sectional area of an air passage is S;
step 2, calculating the natural pressure static ventilation quantity, wherein the calculation formula of the natural pressure static ventilation quantity is as follows:
wherein, V0: natural pressure static ventilation; ρ: the density of the air; pi: indoor air pressure; po: outdoor air pressure; s: the duct cross-sectional area of the airway;
and 3, calculating theoretical actual ventilation quantity, wherein a calculation formula of the theoretical actual ventilation quantity is as follows:
V1＝Q+[V02/(Q2+V02)]Q (2)
wherein, V1: theoretical actual ventilation; q: the static ventilation quantity of the fan;
and 4, calculating the corrected actual ventilation volume, wherein the calculation formula of the corrected actual ventilation volume is as follows:
V2＝[(Po-Pi)/(Q/S)]*S+Q (3)
wherein, V2: correcting the actual ventilation quantity; pi: indoor air pressure; po: outdoor air pressure; s: the duct cross-sectional area of the airway; q: the static ventilation quantity of the fan;
and 5, calculating the actual ventilation quantity, wherein the calculation formula of the actual ventilation quantity is as follows:
V＝k1*V1+k2*V2+k3 (4)
wherein k1, k2 and k3 are fitting correction coefficients; v: actual ventilation volume; v1: theoretical actual ventilation; v2: and correcting the actual ventilation quantity.
The pipeline sectional area of the air passage is the inner diameter sectional area of the ventilation air passage.
And 2, measuring the outdoor air temperature and the outdoor air humidity parameters of the air density parameters in the step 2, and then further looking up the table to obtain the outdoor air density corresponding to the parameters.
The outdoor air density corresponding to the outdoor air temperature and the outdoor air humidity is arranged into a database, and after the corresponding outdoor air temperature and outdoor air humidity parameters are obtained through measurement, the controller can directly read relevant outdoor air density data in the database.
Electrode formula air purifier obtain for regular hexagon's electrode formula air purification unit concatenation by a plurality of cross-sections, a plurality of electrode formula air purification unit splices each other and forms honeycomb structure, every electrode formula air purification unit includes positive plate and negative pole stick, the positive plate splice each other and form the positive pole structure that the cross-section is regular hexagon, the axle center of negative pole stick be located the central point in regular hexagon cross-section and put.
The positive plate is made of an aluminum plate, and the negative rod is made of metal molybdenum.
The purifying power of the electrode type air purifier is realized by opening different numbers of electrode type air purifying units and controlling the purifying power of each electrode type air purifying unit.
The intelligent air quantity calculating and controlling method of the electrostatic adsorption dust removal fresh air system has the beneficial effects that: the method for calculating the ventilation volume comprises the steps that two groups of calculation formulas are adopted, one group of calculation formulas is calculated according to outdoor temperature and humidity and pressure difference, the other group of calculation formulas is obtained through pressure section ventilation compensation calculation, two groups of data are tested to obtain fitting correction coefficients, and accurate actual ventilation volume is obtained through fitting. The subsequent heating power and the purifier power can be further determined by the exact actual ventilation.
Drawings
Fig. 1 is a structural schematic diagram of a fresh air system in the intelligent air volume calculation and control method of the electrostatic adsorption dust removal fresh air system.
Fig. 2 is a structural schematic diagram of an electrode type air purifier in the intelligent air quantity calculation and control method of the electrostatic adsorption dust removal fresh air system.
Reference numerals: 1. an external air quality sensor group; 2. a fan; 3. a heater; 4. an electrode type air purifier; 5. an internal air quality sensor group; 6. an airway; 7. an electrode type air purification unit; 8. a positive plate; 9. and a negative electrode bar.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the intelligent air quantity calculation and control method of the electrostatic adsorption dust removal fresh air system comprises an external air quality sensor group 1, a fan 2, a heater 3, an electrode type air purifier 4, an internal air quality sensor group 5 and an air channel 6, wherein the air quality sensor group 1 is used for collecting outdoor air related data including outdoor PM2.5 concentration PMOOutdoor temperature TOAnd humidity RHOOutdoor air pressure PoThe internal air quality sensor group 5 is used for collecting indoor air related data including indoor PM2.5 concentration PMiAnd the indoor air pressure Pi(ii) a The air passage 6 is communicated with the outdoor space, the fan 2, the heater 3, the electrode type air purifier 4 and the indoor space in sequence;
the method is characterized in that: the purification power of the electrode type air purifier 4 is controlled by the indoor and outdoor pressure difference, and the specific control method is as follows:
step 1, collecting data, namely collecting outdoor air related data through an external air quality sensor group 1, collecting indoor air related data through an internal air quality sensor group 5, and checking that the static ventilation quantity of a fan 2 is Q through the power I of the fan 2, and the pipeline sectional area of an air passage 6 is S;
step 2, calculating the natural pressure static ventilation quantity, wherein the calculation formula of the natural pressure static ventilation quantity is as follows:
wherein, V0: natural pressure static ventilation; ρ: the density of the air; pi: indoor air pressure; po: outdoor air pressure; s: the duct cross-sectional area of the airway;
and 3, calculating theoretical actual ventilation quantity, wherein a calculation formula of the theoretical actual ventilation quantity is as follows:
V1＝Q+[V02/(Q2+V02)]Q (2)
wherein, V1: theoretical actual ventilation; q: the static ventilation quantity of the fan;
and 4, calculating the corrected actual ventilation volume, wherein the calculation formula of the corrected actual ventilation volume is as follows:
V2＝[Po-Pi/(Q/S)]*S+Q (3)
wherein, V2: correcting the actual ventilation quantity; pi: indoor air pressure; po: outdoor air pressure; s: the duct cross-sectional area of the airway; q: the static ventilation quantity of the fan;
and 5, calculating the actual ventilation quantity, wherein the calculation formula of the actual ventilation quantity is as follows:
V＝k1*V1+k2*V2+k3 (4)
wherein k1, k2 and k3 are fitting correction coefficients; v: actual ventilation volume; v1: theoretical actual ventilation; v2: and correcting the actual ventilation quantity.
In this embodiment, the duct cross-sectional area of the air passage is an inner diameter cross-sectional area of the ventilation air passage.
In this embodiment, the air density parameter in step 2 is obtained by measuring the outdoor air temperature and the outdoor air humidity parameter, and then by looking up the table to obtain the outdoor air density corresponding to the parameter.
In this embodiment, the outdoor air density corresponding to the outdoor air temperature and the outdoor air humidity is sorted into the database, and after the corresponding outdoor air temperature and the corresponding outdoor air humidity parameter are obtained through measurement, the controller can directly read the relevant outdoor air density data in the database.
In this embodiment, electrode air purifier 4 is obtained for the concatenation of regular hexagon's electrode type air purification unit 7 by a plurality of cross-sections, and a plurality of electrode type air purification unit 7 splices each other and forms honeycomb structure, and every electrode type air purification unit 7 includes positive plate 8 and negative pole stick 9, positive plate 8 splice each other and form the cross-section and be regular hexagon's positive pole structure, the axle center of negative pole stick 9 be located the central point on regular hexagon cross-section and put.
In this embodiment, the positive electrode plate 8 is made of an aluminum plate, and the negative electrode rod 9 is made of molybdenum.
In this embodiment, the purifying power of the electrode type air purifier 4 is realized by turning on different numbers of the electrode type air purifying units 7 and controlling the purifying power of each electrode type air purifying unit 7.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (5)
1. An intelligent air quantity calculation and control method of an electrostatic adsorption dust removal fresh air system comprises an external air quality sensor group (1), a fan (2), a heater (3), an electrode type air purifier (4), an internal air quality sensor group (5) and an air passage (6), wherein the external air quality sensor group, the fan (2), the heater (3), the electrode type air purifier and the internal air quality sensor group are connected in seriesThe air quality sensor group (1) is used for collecting outdoor air related data, including outdoor PM2.5 concentration PMOOutdoor temperature TOAnd humidity RHOOutdoor air pressure PoThe internal air quality sensor group (5) is used for collecting indoor air related data including indoor PM2.5 concentration PMiAnd the indoor air pressure Pi(ii) a The air passage (6) is communicated with the outdoor space, the fan (2), the heater (3), the electrode type air purifier (4) and the indoor space in sequence;
the method is characterized in that: the purification power of the electrode type air purifier (4) is controlled through the indoor and outdoor pressure difference, and the specific control method is as follows:
step 1, collecting data, collecting outdoor air related data through an external air quality sensor group (1), collecting indoor air related data through an internal air quality sensor group (5), and checking that the static ventilation quantity of a fan (2) is Q according to the power I of the fan (2), and the pipeline sectional area of an air passage (6) is S;
step 2, calculating the natural pressure static ventilation quantity, wherein the calculation formula of the natural pressure static ventilation quantity is as follows:
wherein, V0: natural pressure static ventilation; ρ: the density of the air; pi: indoor air pressure; po: outdoor air pressure; s: the duct cross-sectional area of the airway;
and 3, calculating theoretical actual ventilation quantity, wherein a calculation formula of the theoretical actual ventilation quantity is as follows:
V1＝Q+[V02/(Q2+V02)]Q (2)
wherein, V1: theoretical actual ventilation; q: the static ventilation quantity of the fan;
and 4, calculating the corrected actual ventilation volume, wherein the calculation formula of the corrected actual ventilation volume is as follows:
V2＝[(Po-Pi)/(Q/S)]*S+Q (3)
wherein, V2: correcting realityVentilation volume; pi: indoor air pressure; po: outdoor air pressure; s: the duct cross-sectional area of the airway; q: the static ventilation quantity of the fan;
and 5, calculating the actual ventilation quantity, wherein the calculation formula of the actual ventilation quantity is as follows:
V＝k1*V1+k2*V2+k3 (4)
wherein k1, k2 and k3 are fitting correction coefficients; v: actual ventilation volume; v1: theoretical actual ventilation; v2: correcting the actual ventilation quantity;
the electrode type air purifier (4) is formed by splicing a plurality of electrode type air purifying units (7) with regular hexagonal sections, the electrode type air purifying units (7) are spliced with one another to form a honeycomb structure, each electrode type air purifying unit (7) comprises a positive plate (8) and a negative rod (9), the positive plates (8) are spliced with one another to form a positive structure with a regular hexagonal section, and the axis of the negative rod (9) is located at the center of the regular hexagonal section;
the purifying power of the electrode type air purifier (4) is realized by opening different numbers of electrode type air purifying units (7) and controlling the purifying power of each electrode type air purifying unit (7).
2. The intelligent air volume calculating and controlling method of the electrostatic adsorption dust removal fresh air system as claimed in claim 1, wherein: the pipeline sectional area of the air passage is the inner diameter sectional area of the ventilation air passage.
3. The intelligent air volume calculating and controlling method of the electrostatic adsorption dust removal fresh air system as claimed in claim 1, wherein: and 2, measuring the outdoor air temperature and the outdoor air humidity parameters of the air density parameters in the step 2, and then further looking up the table to obtain the outdoor air density corresponding to the parameters.
4. The intelligent air volume calculating and controlling method of the electrostatic adsorption dust removal fresh air system as claimed in claim 3, wherein: the outdoor air density corresponding to the outdoor air temperature and the outdoor air humidity is arranged into a database, and after the corresponding outdoor air temperature and outdoor air humidity parameters are obtained through measurement, the controller can directly read relevant outdoor air density data in the database.
5. The intelligent air volume calculating and controlling method of the electrostatic adsorption dust removal fresh air system as claimed in claim 1, wherein: the positive plate (8) is made of an aluminum plate, and the negative rod (9) is made of metal molybdenum.
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| US8922971B2 (en) * | 2012-01-13 | 2014-12-30 | Clean Air Group, Inc. | Integrated bi-polar ionization air purification for fan-powered air distribution devices |
| CN104949290B (en) * | 2015-07-16 | 2017-12-08 | 广东美的暖通设备有限公司 | The control method and control device of base station air conditioner |
| CN105928164B (en) * | 2016-06-12 | 2019-01-29 | 华中科技大学 | A kind of positive pressure control system suitable for regional air purification |
| CN107355938A (en) * | 2017-08-10 | 2017-11-17 | 法空空气科技（武汉）有限公司 | A kind of purifying fresh air system |
| KR102432767B1 (en) * | 2017-09-18 | 2022-08-16 | 주식회사 아모그린텍 | Air Cleaning System Capable of Filtering Fine Particles |
| CN108661930A (en) * | 2018-05-14 | 2018-10-16 | 广东环葆嘉节能科技有限公司 | A kind of air quantity visual control method and device |
| CN109140708A (en) * | 2018-08-13 | 2019-01-04 | 同济大学 | PM2.5 concentration control method in a kind of residential housing room based on Mass balance model |
| CN109632022B (en) * | 2018-12-25 | 2020-05-15 | 上海理工大学 | Method for testing and estimating 24-hour average ventilation quantity of residential room |
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