WO2019196016A1 - Dispositif de purification d'air et procédé d'estimation de la durée de vie d'un filtre de celui-ci - Google Patents

Dispositif de purification d'air et procédé d'estimation de la durée de vie d'un filtre de celui-ci Download PDF

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Publication number
WO2019196016A1
WO2019196016A1 PCT/CN2018/082557 CN2018082557W WO2019196016A1 WO 2019196016 A1 WO2019196016 A1 WO 2019196016A1 CN 2018082557 W CN2018082557 W CN 2018082557W WO 2019196016 A1 WO2019196016 A1 WO 2019196016A1
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Prior art keywords
air
weight coefficient
air quality
filter
quality
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PCT/CN2018/082557
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English (en)
Chinese (zh)
Inventor
邢志钢
季振勤
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广东美的制冷设备有限公司
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Priority to PCT/CN2018/082557 priority Critical patent/WO2019196016A1/fr
Publication of WO2019196016A1 publication Critical patent/WO2019196016A1/fr

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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
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • 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

Definitions

  • the present invention relates to the field of air conditioning technology, and in particular to a method for estimating a filter life of an air cleaning device and an air purifying device for performing the method for estimating the life of the filter.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the first aspect of the present invention provides a method for estimating the filter life of an air purification device, which provides a more accurate method for estimating the life of the filter.
  • a method for estimating a filter life of an air cleaning device includes the steps of: detecting an air quality of an environment in which the air cleaning device is located; and obtaining an air mass weight coefficient corresponding to the air mass according to the air quality, wherein And the air quality weight coefficient is inversely proportional to the air quality; obtaining a cumulative weighted running time of the air purifying device according to the air mass weight coefficient and a real running time of the air purifying device; The run time determines the life of the filter.
  • a method of estimating the filter life of an air cleaning apparatus provides a more accurate method of estimating the life of the screen.
  • the method for estimating the filter life of the air cleaning device according to the above embodiment of the present invention may further have the following additional technical features:
  • the obtaining an air quality weight coefficient corresponding to the air quality according to the air quality comprises: comparing the air quality with a standard air quality; according to the air quality and standard air quality a difference between the air quality weight coefficients, wherein the air mass weight factor is 1 when the air mass is equal to the standard air mass; and when the air mass is lower than the standard air mass
  • the air mass weight coefficient is greater than 1 and the greater the difference between the air mass and the standard air mass, the greater the air mass weight coefficient; when the air mass is higher than the standard air mass
  • the air mass weight coefficient is less than 1 and the difference between the air mass and the standard air mass is larger, and the air mass weight coefficient is smaller.
  • the method further comprises: periodically updating the air quality weight coefficient according to the current air quality, so as to perform cumulative weighting operation on the air purification device according to the updated air quality weight coefficient; Time to update.
  • the method further includes: determining a wind gear position weight coefficient according to the air supply gear position, wherein the higher the air supply gear position, the larger the air supply gear position weight coefficient; And correcting the cumulative weighted running time according to the air supply position weight coefficient.
  • the method further comprises: determining a working mode weight coefficient according to the working mode; and correcting the cumulative weighting running time according to the working mode weight coefficient.
  • the work mode weights are determined based on a standard blow rate corresponding to the mode of operation.
  • the method further includes: determining an ion generation weight coefficient according to an ion generation amount, wherein the ion generation amount is larger, the ion generation weight coefficient is larger; according to the ion The generated weighting factor is corrected for the cumulative weighted running time.
  • the amount of ion generation is determined based on the structure of the ion generator and the voltage at which it occurs.
  • a second aspect of the invention also provides an air purification device.
  • the air purifying device performs a filter life estimating method of the air purifying device according to the foregoing embodiment.
  • the air cleaning device includes an air purifier, a fresh air system, and an air conditioner.
  • FIG. 1 is a flow chart showing a method of estimating a filter life of an air cleaning apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a method for estimating the life of a filter in the related art.
  • Fig. 3 is a schematic view showing the comparison between the estimated life of the filter and its actual life under different environmental conditions in the related art.
  • the filter life calculation method used in the air purification apparatus in the related art can be referred to FIG.
  • the device After the machine is turned on, the device automatically records the length of its working time and accumulates the value. At regular intervals, the total running time that is accumulated by the program comparison exceeds the preset value. If the total running time obtained by the accumulation does not exceed the preset value, the running time is continuously accumulated; if the accumulated total running time exceeds The preset value reminds the user to replace and clean the air purifying filter, and after the user completes this action, the accumulated running time is cleared by manual or automatic setting method, and the accumulating is restarted.
  • the above method is an existing method for estimating the life of the screen.
  • the preset filter usage time is the same regardless of whether the air purification device works in a region with severe air pollution or in a region with good air quality.
  • the life of the filter is actually determined by the cumulative amount of pollutants removed by the filter, that is, the quality of the pollutants intercepted by the filter.
  • the actual life of the filter is short, while in areas with good air quality, the filter The actual life of the net is of course longer.
  • the filter A replacement reminder has occurred that has not reached its actual life, resulting in waste of filter life and unnecessary replacement and cleaning, see Figure 3.
  • the use of the purification device is mainly determined by local air environment factors, and the existing filter life calculation method based on the preset usage time cannot reflect the local air environmental factors into the calculation of the filter life, resulting in a filter.
  • the life calculation is biased, resulting in the problem that the filter failure is still in use or the filter life is wasted and the replacement is too frequent.
  • the present invention provides a method for estimating the life of a filter more accurately.
  • a method for estimating a filter life of an air cleaning device includes the following steps:
  • the air quality of the environment in which the air purification device is located is different for different regions. For example, in areas with serious pollution, the air quality of the environment is relatively poor, and there is no pollution or In areas with less pollution, the ambient air quality will be better.
  • the air quality weighting coefficient may be used to determine an air quality of an environment in which the air purification device is located, and for a region with poor air quality, the air quality weighting system shall It is high; in areas with good air quality, the air quality weighting factor will be low.
  • the air quality weight coefficient is inversely proportional to the air quality, that is, the better the air quality is, the smaller the air quality weighting coefficient is, and the worse the air quality is, the larger the air mass weighting coefficient is.
  • the air purifying device Obtaining a cumulative weighted running time of the air purifying device according to the air mass weight coefficient and a real running time of the air purifying device, in other words, in an area where the air mass weight coefficient is large (poor air quality), the air purifying device
  • the cumulative weighted operation time may be greater than the actual operation time, and in areas where the air quality weight coefficient is small (the air quality is good), the cumulative weighted running time of the air purification device may be less than its real running time.
  • the real running time refers to the natural time (time determined by a clock or the like).
  • the life of the filter is determined according to the cumulative weighted running time.
  • the weighted running time of the filter in the area with poor air quality may be greater than the actual use time, so that the filter can be cleaned in time. Or replacement; in areas with good air quality, the weighted running time of the filter may be less than its actual use time, thus extending the cleaning cycle of the filter.
  • the weighted running time of the filter screen is determined according to the control quality, and the actual service life of the filter screen can be determined according to the difference in air quality, and in areas with serious air pollution, Timely to determine whether the filter has reached its service life, in order to replace or clean the filter in time, thereby improving the performance of the filter, avoiding the problem of severe attenuation or failure of the filter performance; and in areas with good air quality, the filter The life calculation is more reasonable. After the filter reaches the real service life, it can be replaced or cleaned to avoid unnecessary waste, reduce maintenance costs and be more environmentally friendly.
  • the service life of the filter can be determined according to the filtering effect. For example, when the filtering effect of the filter can no longer meet the normal use of the air purifying device, the end of the service life of the filter is determined, or The adhesion of the contaminants on the filter screen is determined. When the contaminants on the filter screen are excessively attached, the end of the service life of the filter screen is determined.
  • the air quality weight coefficient can be determined according to different test methods. For example, determining a standard air quality does not require an addition of the air quality weight coefficient, and the air quality is lower than the standard air quality or the standard air quality. When it is good, it can be added by the air quality weight factor.
  • the filter is used for natural time, and when the air quality is lower than the standard air quality, the natural time is subtracted from the predetermined size as the actual use time of the filter.
  • the air quality is higher than the standard quality.
  • the natural time plus the predetermined size is used as the actual use time of the filter.
  • the use time of the filter screen is a cumulative parameter, which is determined according to the running time of the air purification device and other weighting parameters, and the results obtained by calculating the air purification device in different environments are accumulated to obtain the filter mesh. The length of use.
  • the present invention provides a method of calculating the air quality weight coefficient.
  • a method for obtaining an air quality weight coefficient corresponding to the air quality according to the air quality includes:
  • the air mass weight coefficient is 1;
  • the air mass weight coefficient is greater than 1 and the difference between the air mass and the standard air mass is greater, the air mass weight coefficient is larger;
  • the air mass weight coefficient is less than 1 and the difference between the air mass and the standard air mass is larger, the air mass weight coefficient is smaller.
  • the air quality weight coefficient is 1;
  • the air quality weight coefficient is recorded as 1.1, and when the current air quality is worse (the difference from the standard air quality is greater), the air quality weight coefficient is recorded as 1.2...
  • the air quality weight coefficient is recorded as 0.9, and when the current air quality is better (the difference from the standard air quality is greater), the air quality weight coefficient is recorded as 0.8...
  • a comparison table of air quality-air mass weight coefficients may be set. After detecting the obtained air quality, the air quality weight coefficient may be obtained by looking up the table; the air quality may be quantified, and the air quality weight coefficient may be obtained by a calculation formula.
  • the air quality may vary according to the weather and other conditions, and the corresponding air quality weight coefficient will also be changed according to the actual air quality, so it can be based on the current air quality. Update the air quality weight factor.
  • the method further includes periodically updating the air quality weight coefficient according to the current air quality to update the cumulative weighted running time of the air cleaning device according to the updated air quality weight coefficient.
  • the weighted running time H ⁇ f(h) ⁇ h determined according to the air quality, where f(h) is a function of the air mass weight coefficient determined according to the air quality detected at different times, and h refers to air purification
  • the device is running for a long time.
  • this is only the weighted operation time determined according to the air quality, and the air quality weighted operation time H can be determined more reasonably considering the other operating environments of the air purification device to achieve a more reasonable estimation of the filter life. result.
  • the above-described formula of the weighted running time determined according to the air quality is merely an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention.
  • the cumulative weighting time can also be determined by calculating other operating parameters of the air conditioner, such as according to the air supply gear position and the like.
  • the air flow rate has different effects on the filter back during the operation of the air purifying device, for example, when the air flow speed is fast, the air filtered by the filter net will increase, thereby increasing the impurities attached to the filter net; and when the air flow speed is slow.
  • the filter filtered air is reduced, and the impurities attached to the filter net are also reduced during the same time. This affects the life of the filter.
  • the method further includes: determining a wind gear position weight coefficient according to a wind blowing gear position, wherein the air blowing gear position is higher, the air blowing gear position The bit weight coefficient is larger; the cumulative weighted running time is corrected according to the air supply gear weight coefficient.
  • the air supply gear position means that the speed of the air supply device during the operation of the air purification device can also be understood as the air supply speed during the operation of the air purification device, the fan speed and the like.
  • the method further includes: determining a wind gear position weight coefficient according to the air supply wind speed, wherein the air supply gear position (or wind speed) is higher, the air supply gear position weight coefficient is larger; The air supply gear weight coefficient is corrected for the cumulative weighted running time.
  • the method for obtaining the air supply position weight coefficient corresponding to the air supply gear position according to the air supply gear position includes:
  • the air supply gear position weight coefficient is 1;
  • the air supply gear position weight coefficient is less than 1 and the difference between the air supply gear position and the standard air supply gear position is greater The smaller the weight coefficient of the air supply gear position;
  • the air supply gear position weight coefficient is greater than 1 and the difference between the air supply gear position and the standard air supply gear position is greater The air supply gear weight coefficient is larger.
  • the air supply gear position weight coefficient is 1;
  • the air supply position weight coefficient is recorded as 1.1, and when the current air supply position is worse (the difference from the standard air supply position is larger), the air supply is provided.
  • the gear weight coefficient is recorded as 1.2...;
  • the air supply position weight coefficient is recorded as 0.9, and when the current air supply position is better (the difference from the standard air supply position is larger), the air supply is provided.
  • the gear weight coefficient is recorded as 0.8...
  • a comparison table of the air supply gear position and the air supply gear position weight coefficient may be set, and after the air supply gear position is detected, the air supply gear position weight coefficient is obtained by looking up the table; the air supply gear position may also be quantized, and the calculation formula is passed. Obtain the air supply gear weight coefficient.
  • the specific determination manners (formulas, look-up tables, etc.) of the air-sending gear weight coefficient are all specific embodiments of the present invention, and are not intended to limit the scope of the present invention.
  • the service life of the filter screen is different, for example, an air purifying device having several working modes of cooling, heating, and air supply, according to cooling, heating, and air supply.
  • the working life of the filter is calculated by different working modes.
  • the working mode weight coefficient of the filter when the air is blown is defined as 1.
  • the working mode weight coefficient is defined as other values.
  • the specific value of the working mode weight coefficient in the cooling and heating mode needs to be determined according to the experiment. For different models, the same working mode (such as cooling, heating, air supply, etc.) The weight coefficient of the working mode under one) is not the same.
  • not all air purifying devices have the working modes of cooling, heating, and air supply, and not all air purifying devices have only working modes of cooling, heating, and air supply, in some air.
  • the purification device also has a working mode of sterilization, dehumidification and the like.
  • the method further comprises: determining a working mode weight coefficient according to the working mode; and correcting the cumulative weighting running time according to the working mode weight coefficient.
  • the different operating modes correspond to different standard air supply quantities, which are determined according to a standard air supply amount corresponding to the operating mode.
  • the working mode weight coefficient can also be determined according to other aspects. For example, under refrigeration conditions, the indoor humidity is relatively low. At this time, the pollutant attached to the filter screen will increase. At this time, the working mode right should be increased. The coefficient, while in the humidification mode, the contaminants attached to the filter screen may be reduced. At this time, the working mode weight coefficient should be reduced.
  • an ion generator is provided, and the ion generating weight coefficient of the ion generator can be determined according to the example generator, thereby modifying the cumulative weighted running time according to the ion generating weight coefficient.
  • the method further includes: determining an ion generation weight coefficient according to an ion generation amount, wherein the ion generation amount is larger, the ion generation weight coefficient is larger; according to the ion The generated weighting factor is corrected for the cumulative weighted running time.
  • the ion generation weight coefficient can be determined according to the following method:
  • the ion generation weight coefficient is 1;
  • the ion generation weight coefficient is less than 1 and the difference between the ion generation amount and the ion generation amount is larger, the ion generation amount The greater the weight coefficient;
  • the ion generation weight coefficient is greater than 1 and the difference between the ion generation amount and the ion generation amount is larger, the ion generation amount The smaller the weight coefficient.
  • the ion generation weight coefficient is 1;
  • the ion generation weight coefficient is recorded as 1.1, and when the current ion generation amount is larger (the difference from the standard ion generation amount is larger), the ion generation weight coefficient is recorded as 1.2. ...;
  • the ion generation weight coefficient is recorded as 0.9, and when the current ion generation amount is smaller (the difference from the standard ion generation amount is larger), the ion generation weight coefficient is recorded as 0.8. ....
  • a comparison table of the ion generation amount-ion generation weight coefficient can be set, and after detecting the ion generation amount, the ion generation amount weight coefficient can be obtained by looking up the table; the ion generation amount can also be quantized, and the ion generation amount weight can be obtained by the calculation formula. coefficient.
  • the specific determination manner (formula, look-up table, etc.) of the above-mentioned ion generation weight coefficient is a specific embodiment of the present invention, and is not intended to limit the scope of the present invention.
  • the amount of ion generation is determined according to the structure of the ion generator and the voltage at which it occurs.
  • 1 is a method for estimating the life of a filter provided by the present invention, which relies on a cumulative weighted running time H to determine the life of the filter, and the cumulative weighted running time is determined by the real running time h, the air mass weight coefficient A, and the air supply gear position.
  • the product of the weight coefficient B, the working mode weight coefficient C, and the ion generating weight coefficient D is determined, wherein the real running time h and the air mass weight coefficient A are mandatory for the cumulative weighted running time length H, and the air supply gear weight coefficient B.
  • the working mode weight coefficient C and the ion generating weight coefficient D are optional of the cumulative weighted running time H.
  • Air quality weight coefficient A When the air purification device is turned on, the air quality index of the initial environment can be measured by the air quality sensor. In the method, different air quality weight coefficients A are determined for different initial ambient air quality indices, and if the initial ambient air quality index is poor, the air mass weight coefficients A are larger, and vice versa. During the operation, every time period, that is, the cumulative weighted running time H is calculated and updated by the air quality weight coefficient A, and the air quality index is retested by the air quality sensor.
  • the air quality index is not worse than the initial state, Calculate the air quality weight coefficient A based on the initial environment air quality index or the current air quality index, and cycle the update of the next cumulative weighted operation time length H; if the air quality index is detected to be worse than the initial state, it must be based on the current air
  • the quality index calculates the air quality weight coefficient A and cycles through the update of the next cumulative weighted running time length H.
  • Air supply gear weight coefficient B During the operation of the air purification device, different air supply gears have different airflows, so under the same ambient air quality, different air supply gear filters filter air pollutants. The speed is also different, resulting in a difference in the speed of the filter life. Therefore, setting the air supply gear weight coefficient B is to reflect the difference in the speed of the filter life in order to reflect the difference in the air supply gear position. When the air supply speed is high, the air supply gear weight coefficient B also needs to take a larger value, and vice versa.
  • Working mode weight coefficient C Similar to the air supply gear weight coefficient B, in different working modes (refrigeration, heating, air supply, etc.), the air volume is also different, resulting in a difference in the consumption speed of the filter life. .
  • the working mode weight coefficient C is set to reflect this difference.
  • the value principle is similar to the air supply gear weight coefficient B. In the high air volume mode, the C value is larger, and vice versa.
  • Ion generation weight coefficient D In air purification devices, the effect of air purification is often increased by releasing ions. In other words, the ions are often accelerated to capture the target pollutants. Therefore, the amount of ions is the same. It is an important factor affecting the speed of the filter life, and the amount of ion generation can be determined by the structure of the ion generator and the generated voltage.
  • the setting of the ion generation weight coefficient D is to reflect the influence of the amount of ions on the life consumption speed of the filter. When the amount of ions is large and the effect of enhancing the air purification is obvious, a large amount of ions should be taken. The weight coefficient D and vice versa.
  • the air quality weight coefficient determined according to the time h is A(h)
  • the air supply weight coefficient determined according to the time h is B(h)
  • the working mode weight coefficient determined according to the time h is C ( h)
  • the ion generation weight coefficient determined according to the time h is D(h).
  • the cumulative weighted runtime H can be determined according to the following formula:
  • the multi-factor weighted estimation method for filter life proposed by the present invention comprehensively considers the influence of running time, working environment air quality, air supply position, working mode and ion generation on the life of the filter, and reasonable setting of various rights
  • the coefficient can make the estimated life of the filter equal to the real life of the filter, so as to accurately evaluate the actual service life of the filter in different environments, avoiding the use of filter failure in areas with serious air pollution, or in areas with good air quality. Problems such as frequent network changes. It is worth mentioning that, for products with a wide sales area, the ambient air quality of the use area often differs greatly. Therefore, the method of the invention has more obvious application value.
  • a second aspect of the present invention also provides an air purifying apparatus that performs a screen life estimating method of the air purifying apparatus according to the foregoing embodiment.
  • the estimated life of the filter can be made equal to the real life of the filter, thereby accurately estimating the actual service life of the filter in different environments and avoiding occurrence.
  • the filter is still in use, or in areas with good air quality, and the filter replacement is too frequent.
  • the air cleaning device includes an air purifier, a fresh air system, and an air conditioner.
  • the air purifying device of the present invention may also be other devices.

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Abstract

L'invention concerne un dispositif de purification d'air et un procédé d'estimation de la durée de vie d'un filtre de celui-ci, le procédé comprenant les étapes suivantes : détection de la qualité de l'air d'un environnement dans lequel se trouve un dispositif de purification d'air ; obtention d'un coefficient de pondération de la qualité de l'air correspondant à la qualité de l'air en fonction de ladite qualité de l'air ; obtention du temps de fonctionnement pondéré cumulé du dispositif de purification d'air en fonction du coefficient de pondération de qualité de l'air et du temps de fonctionnement réel du dispositif de purification d'air ; et détermination de la durée de vie d'un filtre en fonction du temps de fonctionnement pondéré cumulé.
PCT/CN2018/082557 2018-04-10 2018-04-10 Dispositif de purification d'air et procédé d'estimation de la durée de vie d'un filtre de celui-ci WO2019196016A1 (fr)

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CN113486953A (zh) * 2021-07-06 2021-10-08 西门子（上海）电气传动设备有限公司 变频器滤网更换时间的预测方法、装置及计算机可读介质
CN114353264A (zh) * 2021-12-29 2022-04-15 深圳市晨北科技有限公司 滤网寿命监测方法、装置、设备及存储介质
CN114777287A (zh) * 2022-05-11 2022-07-22 卧龙电气驱动集团股份有限公司 空调室内机污染程度的获取方法、装置
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CN113486953A (zh) * 2021-07-06 2021-10-08 西门子（上海）电气传动设备有限公司 变频器滤网更换时间的预测方法、装置及计算机可读介质
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CN114353264B (zh) * 2021-12-29 2023-09-22 深圳市晨北科技有限公司 滤网寿命监测方法、装置、设备及存储介质
CN114777287A (zh) * 2022-05-11 2022-07-22 卧龙电气驱动集团股份有限公司 空调室内机污染程度的获取方法、装置

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