CN113996164B - Air conditioner, air purifying method thereof, purifying device and readable storage medium - Google Patents
Air conditioner, air purifying method thereof, purifying device and readable storage medium Download PDFInfo
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- CN113996164B CN113996164B CN202010736843.3A CN202010736843A CN113996164B CN 113996164 B CN113996164 B CN 113996164B CN 202010736843 A CN202010736843 A CN 202010736843A CN 113996164 B CN113996164 B CN 113996164B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000001954 sterilising effect Effects 0.000 claims abstract description 114
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 83
- 230000004888 barrier function Effects 0.000 claims abstract description 81
- 239000000126 substance Substances 0.000 claims abstract description 52
- 238000004140 cleaning Methods 0.000 claims description 29
- 238000004887 air purification Methods 0.000 claims description 25
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 17
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an air purifying method, which is applied to an air purifying device comprising a dielectric barrier discharge structure, and comprises the following steps: acquiring a sterilization mode of the air purifying device; different degerming modes correspond to different degerming substances; determining corresponding target frequency parameters according to the sterilization mode; and inputting the pulse direct current electric signal corresponding to the target frequency parameter into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure releases the degerming substances corresponding to the degerming mode to purify the air. The invention also discloses an air purifying device, an air conditioner and a readable storage medium. The invention aims to realize that the air purifying device can be suitable for different sterilizing requirements to release different sterilizing substances to purify air, so as to improve the application adaptability of the air purifying device in different scenes.
Description
Technical Field
The present invention relates to the field of air conditioning technology, and more particularly, to an air purifying method, an air purifying apparatus, an air conditioner, and a readable storage medium.
Background
Environmental problems are an extremely serious problem in the current social development, wherein air pollution is a non-negligible effect on our daily life, and indoor air purification is an important subject of the current society. Wherein the air purifying device adsorbs harmful substances in the air by generating the sterilizing substances to realize the purification of the air.
However, most of the air purifying devices at present only have a fixed sterilization mode, and only release sterilization substances according to fixed parameters during sterilization operation, and the sterilization substances cannot be adapted to different sterilization requirements, so that the air purifying devices are difficult to meet the different sterilization requirements.
Disclosure of Invention
The invention mainly aims to provide an air purifying method, which aims to realize that an air purifying device can be suitable for different sterilizing requirements to release different sterilizing substances for purifying air so as to improve the application adaptability of air purifying equipment in different scenes.
In order to achieve the above object, the present invention provides an air purification method applied to an air purification apparatus including a dielectric barrier discharge structure, the air purification method comprising the steps of:
acquiring a sterilization mode of the air purifying device; different degerming modes correspond to different degerming substances;
determining corresponding target frequency parameters according to the sterilization mode; and
and inputting the pulse direct current electric signal corresponding to the target frequency parameter into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure releases the degerming substances corresponding to the degerming mode to purify the air.
Optionally, the step of determining the corresponding target frequency parameter according to the sterilization mode includes:
and taking the frequency interval of the pulse direct current signal corresponding to the sterilization mode as the target frequency parameter.
Optionally, the step of using the frequency interval of the pulsed dc signal corresponding to the sterilization mode as the target frequency parameter includes:
when the sterilization mode is a first mode, taking a first frequency interval of the pulse direct current signal corresponding to the first mode as the target frequency parameter; and
when the sterilization mode is a second mode, taking a second frequency interval of the pulse direct current signal corresponding to the second mode as the target frequency parameter;
the sterilization substances corresponding to the first mode are ozone and plasma, the sterilization substances corresponding to the second mode are plasma, and the frequency in the first frequency interval is greater than the frequency in the second frequency interval.
Optionally, the first frequency interval is [10khz,60khz ], and the second frequency interval is [1khz,10khz ].
Optionally, the first frequency interval is [10khz,30khz ] and the second frequency interval is [7khz,9khz ].
Optionally, the power of the pulsed dc electrical signal is within the [5w,40w ] interval, the pulse rising edge of the pulsed dc electrical signal is within the [20ns,80ns ] interval, the pulse width of the pulsed dc electrical signal is within the [100ns,800ns ] interval, and/or the peak voltage of the pulsed dc electrical signal is within the [2kv,8kv ] interval.
Optionally, the step of inputting the electric signal corresponding to the target frequency parameter into the dielectric barrier discharge structure includes:
inputting a pulse direct current electric signal with the frequency changing to the dielectric barrier discharge structure; wherein, the change interval of the frequency of the pulse DC signal is the target frequency interval.
Optionally, the step of inputting the electric signal corresponding to the target frequency parameter into the dielectric barrier discharge structure includes:
taking a frequency value in the target frequency interval as a target frequency value; and
and inputting a pulse direct current electric signal with the frequency being the target frequency value into the dielectric barrier discharge structure.
Optionally, the step of taking a frequency value in the target frequency interval as the target frequency value includes:
acquiring the temperature, humidity and/or wind speed of air flowing through the dielectric barrier discharge structure; and
and determining a frequency value corresponding to the temperature, the humidity and/or the wind speed in the target frequency interval as the target frequency value.
Optionally, the step of determining, in the target frequency interval, a frequency value corresponding to the temperature, the humidity and/or the wind speed as the target frequency value includes:
determining the deviation amount between the maximum critical value and the minimum critical value of the target frequency interval;
determining a target adjustment factor from the temperature, the humidity and/or the wind speed;
correcting the deviation amount by adopting the target adjustment coefficient to obtain a frequency adjustment amplitude; and
and determining the target frequency value in the target frequency interval according to the critical value of the target frequency interval and the frequency adjustment amplitude.
Optionally, the step of determining a target adjustment factor from the temperature, the humidity and/or the wind speed comprises:
determining a first adjustment coefficient corresponding to the temperature, determining a second adjustment coefficient corresponding to the humidity, and determining a third adjustment coefficient corresponding to the wind speed;
determining the target adjustment coefficient according to the first adjustment coefficient, the second adjustment coefficient and the third adjustment coefficient;
wherein the first adjustment coefficient increases as the temperature decreases, the second adjustment coefficient increases as the humidity increases, and the third adjustment coefficient increases as the wind speed increases.
Optionally, the sterilization mode includes a first mode and a second mode, and before the step of obtaining the sterilization mode of the air purification device, the method further includes:
acquiring human body detection information in the action space of the air purification device;
determining a sterilization mode of the air cleaning device as the first mode when the human body detection information does not have the characteristic information of the human body; and
determining a sterilization mode of the air cleaning device as the second mode when the human body detection information includes characteristic information of a human body;
the sterilizing substances corresponding to the first mode are ozone and plasma, and the sterilizing substances corresponding to the second mode are plasma.
In addition, in order to achieve the above object, the present application also proposes an air cleaning device including:
the dielectric barrier discharge structure is used for releasing the degerming substances;
the pulse direct current power supply is used for outputting a pulse direct current signal and is electrically connected with the dielectric barrier discharge structure; and
the air purification device comprises a memory, a processor and an air purification program which is stored in the memory and can run on the processor, wherein the pulse direct current power supply is connected with the processor, and the air purification program realizes the steps of the air purification method when being executed by the processor.
In addition, in order to achieve the above object, the present application also proposes an air conditioner including:
the shell is internally provided with an air duct, and the shell is provided with an air outlet communicated with the air duct; and
the air purifying device is arranged in the air duct.
In addition, in order to achieve the above object, the present application also proposes a readable storage medium having stored thereon an air cleaning program which, when executed by a processor, implements the steps of the air cleaning method according to any one of the above.
The air purifying method provided by the invention is applied to the air purifying device comprising the dielectric barrier discharge structure, and the air purifying device can input the pulse direct current electric signals corresponding to different target frequencies into the dielectric barrier discharge structure in different sterilizing modes, and the pulse direct current electric signals of the target frequencies corresponding to the different sterilizing modes of the dielectric barrier discharge structure are used as input signals to release different sterilizing substances to different extent, so that the air purifying device can adapt to different sterilizing requirements to release different sterilizing substances to purify air, and the application adaptability of the air purifying device in different scenes is improved.
Drawings
FIG. 1 is a schematic diagram of a dielectric barrier discharge structure in various forms in an air purification device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of hardware involved in the operation of a control device in an air purification device according to an embodiment of the present invention;
FIG. 3 is a schematic view of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of an embodiment of the air purifying method of the present invention;
FIG. 5 is a schematic flow chart of another embodiment of the air purifying method of the present invention;
fig. 6 is a schematic flow chart of an air purifying method according to another embodiment of the invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The main solutions of the embodiments of the present invention are: acquiring a sterilization mode of the air purifying device; different degerming modes correspond to different degerming substances; determining corresponding target frequency parameters according to the sterilization mode; and inputting the pulse direct current electric signal corresponding to the target frequency parameter into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure releases the degerming substances corresponding to the degerming mode to purify the air.
Because among the prior art, most air purification device only has a fixed degerming mode, only can release degerming material according to fixed parameter when degerming operation, degerming material can't adapt to different degerming demands and change, makes air purification device be difficult to satisfy different degerming demands.
The invention provides the solution, and aims to realize that the air purifying device can be suitable for different sterilizing requirements to release different sterilizing substances to purify air, so as to improve the application adaptability of the air purifying device in different scenes.
The embodiment of the invention provides an air purifying device 100.
In the embodiment of the present invention, the air cleaning device 100 specifically includes a dielectric barrier discharge structure 1, a pulsed dc power supply 2, and a control device. The dielectric barrier discharge structure 1 can release ozone, ions and other sterilizing substances when an electric signal is input to an electrode thereof. The pulsed dc power supply 2 may output a pulsed dc electrical signal. The electrode of the dielectric barrier discharge structure 1 is electrically connected with the pulse direct current power supply 2, the pulse direct current power supply 2 can input a pulse direct current signal into the dielectric barrier discharge structure 1, and air can form ozone, plasma and other sterilization substances after passing through the dielectric barrier discharge structure 1, so that the surrounding bacteria and harmful gas are structurally destroyed, and the effect of purifying and sterilizing is achieved.
Specifically, in the present embodiment, referring to fig. 1, the dielectric barrier discharge structure 1 includes a first electrode 11, a second electrode 12, and a dielectric barrier layer 13. The first electrode 11 and the second electrode 12 are arranged at intervals, and the dielectric barrier layer 13 is arranged between the first electrode 11 and the second electrode 12. The dielectric barrier 13 is specifically a layered structure made of an insulating material. The first electrode 11 and the second electrode 12 are connected to the positive and negative electrodes of the pulsed dc power supply 2, respectively. The dielectric barrier 13 may be disposed on the surface of the first electrode 11 and/or the second electrode 12 (as shown in fig. 1 (a), 1 (b), 1 (d), and 1 (e)). In addition, the dielectric barrier layer 13 may be disposed at a distance from the first electrode 11, and the dielectric barrier layer 13 may be disposed at a distance from the second electrode 12 (see fig. 1 (d) and 1 (f)). The dielectric barrier 13 may have one layer (e.g., fig. 1 (b), fig. 1 (c), fig. 1 (e), fig. 1 (f)) or two layers (e.g., fig. 1 (a), fig. 1 (d)). Specifically, the dielectric barrier layer 13 includes a first sub-dielectric barrier layer and a second sub-dielectric barrier layer, the first sub-dielectric barrier layer is disposed on the surface of the first electrode 11, the second sub-dielectric barrier layer is disposed on the surface of the second electrode 12, and the first sub-dielectric barrier layer and the second sub-dielectric barrier layer are disposed at intervals (as shown in fig. 1 (a) and fig. 1 (d)). Further, the first electrode 11 and the second electrode 12 may be disposed opposite to each other (as shown in fig. 1 (a), 1 (b), and 1 (c)), or the first electrode 11 encloses to form a receiving cavity, and the second electrode 12 is disposed in the receiving cavity (as shown in fig. 1 (d), 1 (e), and 1 (f)).
In an embodiment of the present invention, referring to fig. 2, a control device in an air cleaning device 100 includes: a processor 1001 (e.g., CPU), a memory 1002, and the like. The memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1002 may alternatively be a storage device separate from the processor 1001 described above.
The processor 1001 is connected to the memory 1002 and the pulsed dc power supply 2. The processor 1001 may control the process of inputting an electrical signal to the dielectric barrier discharge structure 1 by the pulsed dc power supply 2.
It will be appreciated by those skilled in the art that the device structure shown in fig. 2 is not limiting of the device and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 2, an air cleaning program may be included in the memory 1002 as a readable storage medium. In the apparatus shown in fig. 2, a processor 1001 may be used to call up an air cleaning program stored in a memory 1002 and perform the relevant step operations of the air cleaning method of the following embodiment.
The embodiment of the invention also provides an air conditioner which can be any type of air conditioner such as a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner and the like.
Referring to fig. 3, in the present embodiment, the air conditioner includes a housing 200 and the air cleaning device 100 in the above-described embodiment. Specifically, the air duct 01 is provided in the housing 200, and conventional components of an air conditioner such as a fan and a heat exchanger may be provided in the air duct 01 in addition to the air purifying apparatus 100. The air outlet communicated with the air duct 01 is arranged on the shell 200, and air in the air duct 01 is purified by the air purifying device 100 and then blown to the indoor environment, so that the air conditioner can purify and sterilize the air in the indoor environment while discharging air. The steps of the air purifying method in any of the following embodiments can be performed during the sterilization process of the air conditioner, so that the air conditioner can adapt to different sterilization requirements to release different sterilization substances to purify air, and the adaptability of the air purifying device in different scenes is improved.
The embodiment of the invention also provides an air purifying method.
Referring to fig. 4, an embodiment of the air cleaning method of the present application is presented. In this embodiment, the air purifying method includes:
step S10, acquiring a sterilization mode of the air purification device; different degerming modes correspond to different degerming substances;
the sterilization mode specifically refers to a mode in which the air cleaning device performs a sterilization operation on the air. The specific amount is that the sterilization modes are divided based on different sterilization substances, and the sterilization substances required to be released by the dielectric barrier discharge structure are different in different sterilization modes. In this embodiment, the sterilization mode specifically includes a first mode and a second mode. The sterilizing substances corresponding to the first mode are ozone and plasma, and the sterilizing substances corresponding to the second mode are plasma.
The sterilization mode can be obtained by acquiring user setting parameters, and can also be obtained based on analysis of monitoring results of scenes in the action space of the air purification device.
Step S20, determining corresponding target frequency parameters according to the sterilization mode;
the target frequency parameter may be a frequency interval or a frequency value. Different sterilization modes correspond to different target frequency parameters. Based on the degerming substances required to be released by the degerming mode, the corresponding relation between the degerming mode and the corresponding target frequency parameter can be obtained in advance through a large amount of data analysis, and the corresponding relation can be a mapping relation, a formula, an algorithm model and the like. When the sterilization mode includes the first mode and the second mode, the target frequency parameter is greater than the target frequency parameter when the sterilization mode is the first mode in the corresponding relation. Based on the pre-established correspondence, a frequency value or a frequency interval corresponding to the current sterilization mode may be determined as the target frequency parameter herein.
In this embodiment, each sterilization mode has a frequency interval set corresponding to the sterilization mode, and based on this, the frequency interval of the pulsed dc signal corresponding to the current sterilization mode can be used as the target frequency parameter. The frequency interval corresponding to the sterilization mode can be a preset fixed interval, and the corresponding adjustment coefficient can be determined by combining the temperature, humidity and wind speed of the air in the air duct and the size of the acting space of the air purification device, and the frequency interval corresponding to the current sterilization mode is obtained after the set frequency interval associated with the current sterilization mode is adjusted based on the determined adjustment coefficient.
And step S30, inputting the pulse direct current electric signal corresponding to the target frequency parameter into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure releases the degerming substances corresponding to the degerming mode to purify the air.
When the target frequency parameter is a frequency value, a pulse direct current electric signal with the frequency being the target frequency parameter can be input into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure can release the degerming substances required to be released in the current degerming mode.
When the target frequency parameter is a frequency interval, one or more frequency values can be selected from the frequency interval as the frequency of the pulse direct current signal input into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure can release the degerming substances required to be released in the current degerming mode.
When the target frequency parameter is a frequency interval, a pulse direct current signal corresponding to the target frequency parameter can be input into the dielectric barrier discharge structure in a fixed-frequency or variable-frequency mode. Specifically, a pulse dc signal with a frequency varying size may be input to the dielectric barrier discharge structure, and a variation interval of the frequency of the pulse dc signal is a target frequency interval. That is, the frequency of the pulsed dc signal input to the dielectric barrier discharge structure reciprocally varies between two section thresholds of the target frequency section. In addition, a frequency value in the target frequency interval may be used as the target frequency value, and a pulsed dc electrical signal with a frequency equal to the target frequency value may be input into the dielectric barrier discharge structure. The target frequency value selected can be a fixed value or can be selected according to actual conditions.
The air purifying method provided by the embodiment of the invention is applied to the air purifying device comprising the dielectric barrier discharge structure, and can input the pulse direct current electric signals corresponding to different target frequencies into the dielectric barrier discharge structure in different sterilizing modes, and the sterilizing substances released by the dielectric barrier discharge structure when the pulse direct current electric signals corresponding to the target frequencies in different sterilizing modes are used as input signals are different, so that the air purifying device can adapt to different sterilizing requirements to release different sterilizing substances to purify air, and the application adaptability of the air purifying device in different scenes is improved. The plasma generated by the pulse direct current signal is more uniform than the plasma generated by the alternating current signal, and the ozone density is four times of that of alternating current driving under the same power.
Further, in this embodiment, in the process of inputting the pulse dc signal corresponding to the target frequency into the dielectric barrier structure, the ozone concentration in the air at the air outlet side of the air purifying device is continuously monitored, and when the ozone concentration is greater than or equal to the set concentration threshold corresponding to the sterilization mode, the pulse dc signal input into the dielectric barrier structure is reduced. When the sterilization mode comprises a first mode and a second mode, the set concentration threshold corresponding to the first mode is larger than the set concentration threshold corresponding to the second mode. In this way, the too high ozone concentration can be avoided, and the ozone concentration can be ensured to be matched with the sterilization requirement in the current sterilization mode.
Further, based on the above embodiment, another embodiment of the air cleaning method of the present application is proposed. In this embodiment, the sterilization mode specifically includes a first mode and a second mode. The sterilizing substances corresponding to the first mode are ozone and plasma, and the sterilizing substances corresponding to the second mode are plasma. Based on this, referring to fig. 5, step S10 includes:
step S11, acquiring human body detection information in the action space of the air purification device;
the space in which the air cleaning apparatus acts may specifically be a space having a certain size in the room into which the cleaning action of the air cleaning apparatus can radiate. The human body detection information can be obtained by acquiring data detected by a human body detection module (such as an infrared detection module, a radar detection module and the like) arranged on the air purifying device or the air conditioner.
Step S12, judging whether the human body detection information contains characteristic information of human bodies or not;
when the human body detection information does not have the characteristic information of the human body, executing a step S13; when the human body detection information includes the characteristic information of the human body, step S14 is performed.
Step S13, determining a sterilization mode of the air purifying device as a first mode;
step S14, determining a sterilization mode of the air cleaning device as a second mode.
The sterilizing substances corresponding to the first mode are ozone and plasma, and the sterilizing substances corresponding to the second mode are plasma.
The characteristic information of the human body exists in the human body detection information to indicate the human body exists in the indoor environment, and the characteristic information of the human body does not exist in the human body detection information to indicate the human body does not exist in the indoor environment. Here, because the degerming effect of ozone is better, but can cause the influence to human health, thereby adopt first mode degerming when indoor unmanned is favorable to guaranteeing that indoor degerming effect is in the preferred state, adopt the degerming of second mode when indoor someone to guarantee indoor human health when realizing degerming.
Further, in this embodiment, when the sterilization mode includes the first mode and the second mode, step S20 specifically includes:
step S21, when the sterilization mode is a first mode, a first frequency interval of the pulse direct current signal corresponding to the first mode is used as the target frequency parameter;
step S22, when the sterilization mode is a second mode, a second frequency interval of the pulse direct current signal corresponding to the second mode is used as the target frequency parameter;
the sterilization substances corresponding to the first mode are ozone and plasma, the sterilization substances corresponding to the second mode are plasma, and the frequency in the first frequency interval is greater than the frequency in the second frequency interval.
In the present embodiment, the higher the frequency of the pulsed dc electrical signal input into the dielectric barrier discharge structure, the greater the amount of ozone released in the dielectric barrier structure.
Here, through step S21 and step S22, when the pulse dc signal corresponding to the first frequency interval is input into the dielectric barrier discharge structure, the dielectric barrier discharge structure may perform sterilization by releasing ozone and plasma, and when the pulse dc signal corresponding to the second frequency interval is input into the dielectric barrier discharge structure, the dielectric barrier discharge structure may perform sterilization by releasing plasma.
Specifically, the first frequency range is [10KHz,60KHz ]]The second frequency interval is [1KHz,10 KHz). In the first mode, the frequency of the pulse DC signal is less than 10KHz to cause degerming substancesThe ozone generation amount in the quality is insufficient, and the sterilization effect required to be achieved in the mode cannot be achieved; when the frequency of the pulse direct current signal is more than 60KHz, the ozone generation amount in the degerming substances is excessive, and the ozone concentration exceeds the safe concentration of 400mg/m 3 The material in the space is easily oxidized, and the indoor environment is damaged. In the second mode, when the frequency of the pulse direct current signal is greater than or equal to 10KHz, the air purifying device can release unnecessary ozone, and the sterilization requirement of the air purifying device is not matched with the sterilization requirement required to be achieved in the second mode; the frequency of the pulse direct current signal is less than 1KHz, which can cause too little degerming substances released by the air purifying device, and the degerming effect is difficult to ensure. Thus, the first frequency range [10KHz,60KHz ] will be in the first mode]The corresponding pulse DC electric signal is input into the dielectric barrier discharge structure, so that the sterilization effect can be matched with the sterilization requirement of the first mode without damaging the indoor environment, wherein the first frequency interval can be selected as 10KHz or 30KHz]The sterilization effect and the indoor environment protection effect can reach a better state, particularly, a 30KHz pulse direct current electric signal is input into the dielectric barrier discharge structure in a fixed frequency mode, and the indoor environment protection effect is ensured and the best sterilization effect is achieved. In the second mode, pulse direct current electric signals corresponding to a second frequency interval of [1KHz,10 KHz) are input into the dielectric barrier discharge structure, so that the released degerming substances can be matched with the degerming requirements of the second mode, and the degerming effect is ensured to be better, wherein the second frequency interval can be selected from [7KHz,9KHz ]]The sterilizing effect and the satisfying effect of the sterilizing material can reach a better state. The pulse direct current signal input into the dielectric barrier discharge structure is at least more than 1KHz, the high-voltage pulse direct current signal is used as the input signal of the dielectric barrier structure, the voltage increase rate is favorably improved to be more than 200 times, overvoltage of a discharge gap can be caused, the high overvoltage causes a high reduced electric field of the discharge gap, the high reduced electric field further causes a relatively high effective electron temperature, and the ionization efficiency is higher as the electron temperature is higher.
Further, in this embodiment, the power of the pulse dc signal is within the [5w,40w ] interval, the pulse rising edge of the pulse dc signal is within the [20ns,80ns ] interval, the pulse width of the pulse dc signal is within the [100ns,800ns ] interval, and/or the peak voltage of the pulse dc signal is within the [2kv,8kv ] interval, so that after the pulse current electric signal formed by matching with the first frequency interval and the second frequency interval is input to the dielectric barrier discharge structure, the efficiency, uniformity and density of releasing the degerming substance by the dielectric barrier structure can be further improved, thereby further improving the purifying and degerming effect of the air purifying device. The power is 16W, the pulse rising edge is 50ns, the pulse width is 600ns, and the peak voltage is in the range of 4KV and 6KV, so that the purification and sterilization effect is optimal.
Further, based on any one of the above embodiments, a further embodiment of the air purification method of the present application is provided. In the present embodiment, referring to fig. 6, when step S30 includes: step S31 is a step of inputting a frequency value in the target frequency range as a target frequency value, and step S32 is a step of inputting a pulsed dc electrical signal with a frequency of the target frequency value to the dielectric barrier discharge structure, wherein step S31 includes:
step S311, acquiring the temperature, humidity and/or wind speed of the air flowing through the dielectric barrier discharge structure;
the temperature, humidity and/or wind speed can be acquired by a data acquisition module arranged on the air inlet side of the dielectric barrier discharge structure.
Step S312, determining, in the target frequency interval, a frequency value corresponding to the temperature, the humidity and/or the wind speed as the target frequency value.
Different air temperatures, humidity and/or wind speeds correspond to different frequency values in the target frequency interval. Specifically, the lower the temperature, the higher the corresponding frequency in the target frequency zone, the higher the humidity, the higher the corresponding frequency in the target frequency zone, and the higher the wind speed, the higher the corresponding frequency in the target frequency zone. Based on the above, the corresponding relation between the temperature, the humidity and/or the wind speed and the selected frequency value in the target frequency interval can be pre-established based on the aim that the sterilization rate reaches the set threshold value or above under different air parameters, and the corresponding relation can be in the forms of a formula, a mapping relation, an algorithm model and the like. Based on the pre-established correspondence, a frequency value corresponding to the temperature, the humidity and/or the wind speed can be determined in the target frequency interval as a target frequency value.
Specifically, in the present embodiment, step S312 includes: determining the deviation amount between the maximum critical value and the minimum critical value of the target frequency interval; determining a target adjustment factor from the temperature, the humidity and/or the wind speed; correcting the deviation amount by adopting the target adjustment coefficient to obtain a frequency adjustment amplitude; the frequency adjustment amplitude is smaller than the deviation amount; and determining the target frequency value in the target frequency interval according to the minimum critical value of the target frequency interval and the frequency adjustment amplitude. Specifically, different temperatures, humidity and/or wind speeds correspond to different target adjustment coefficients, and the target adjustment coefficients may specifically be adjustment amplitudes or target values of adjustment proportions corresponding to the deviation between two critical values of the target frequency interval. And after the target adjustment parameters are determined based on the temperature, the humidity and/or the wind speed of the current air, correcting the deviation amount to obtain a frequency adjustment amplitude, and taking the difference between the maximum critical value of the target frequency interval and the frequency adjustment amplitude or the sum of the minimum critical value of the target frequency interval and the frequency adjustment amplitude as a target frequency value. For example, when the threshold value of the target frequency interval refers to the minimum threshold value and the target frequency interval is [1KHz,10 KHz), the corresponding deviation amount is 9KHz, the target adjustment coefficient obtained based on the temperature, humidity and/or wind speed is 0.8, the frequency adjustment amplitude obtained by correcting the 9KHz with 0.8 is 6.4KHz, and the sum of the minimum threshold value 1KHz and the frequency adjustment amplitude of 6.4KHz and 7.4KHz can be regarded as the target frequency value selected in the target frequency interval.
The target adjustment coefficient can be determined simultaneously based on temperature, humidity and wind speed, specifically, a first adjustment coefficient corresponding to the temperature can be determined, a second adjustment coefficient corresponding to the humidity can be determined, a third adjustment coefficient corresponding to the wind speed can be determined, and the target adjustment coefficient is determined according to the first adjustment coefficient, the second adjustment coefficient and the third adjustment coefficient. Here, different temperatures correspond to different first adjustment coefficients, different humidities correspond to different second adjustment coefficients, and different wind speeds correspond to different third adjustment coefficients. The correspondence between the temperature, humidity or wind speed and its corresponding adjustment coefficient may be established in advance. In the correspondence, the first adjustment coefficient increases as the temperature decreases, the second adjustment coefficient increases as the humidity increases, and the third adjustment coefficient increases as the wind speed increases. After the first adjustment coefficient, the second adjustment coefficient, and the third adjustment coefficient are determined, the target adjustment coefficient may be calculated by a set formula based on the obtained first adjustment coefficient, second adjustment coefficient, and third adjustment coefficient. For example, when the first adjustment coefficient is X, the second adjustment coefficient is Y, and the third adjustment coefficient is Z, the target adjustment coefficient M may be calculated by m=a×x+b×y and c×z, where a, b, c are weight values corresponding to the first adjustment coefficient, the second adjustment coefficient, and the third adjustment coefficient, respectively, and a+b+c=1. a. b and c can be fixed values which are configured in advance, or parameters which are determined based on actual conditions, for example, when the air purifying device is arranged in an air duct of the air conditioner, the proportion of a, b and c can be determined based on the distance between the air purifying device and an air outlet, and different proportions can be corresponding to different distances, so that the values of a, b and c can be obtained based on the distances and then applied to the determination of a target adjustment coefficient.
In this embodiment, because the air temperature, humidity and/or wind speed may affect the pulse dc electrical signal input to the degerming substance released by the dielectric barrier discharge structure, the too low temperature, too high humidity or too high wind speed may reduce the ionization efficiency of the dielectric barrier discharge structure, based on this, in order to make the input pulse dc electrical signal achieve the best purification and sterilization effect of the air purification device, the target frequency value of the pulse dc electrical signal input to the dielectric barrier discharge structure is selected in the target frequency interval corresponding to the current sterilization mode in combination with the air temperature, humidity and/or wind speed, thereby ensuring that the air purification device can meet different sterilization requirements and improving the purification effect of the air purification device.
In addition, the embodiment of the invention also provides a readable storage medium, wherein the readable storage medium stores an air purifying program, and the air purifying program realizes the relevant steps of any embodiment of the air purifying method when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (11)
1. An air purification method, characterized by being applied to an air purification device including a dielectric barrier discharge structure, comprising the steps of:
acquiring a sterilization mode of the air purifying device; different degerming modes correspond to different degerming substances;
taking a frequency interval of the pulse direct current signal corresponding to the degerming mode as a target frequency parameter, wherein different degerming modes correspond to different target frequency parameters;
acquiring the temperature, humidity and wind speed of air flowing through the dielectric barrier discharge structure;
determining frequency values corresponding to temperature, humidity and wind speed in a target frequency interval as target frequency values, wherein a change interval of the frequency of the pulse direct current signal is the target frequency interval;
and inputting a pulse direct current electric signal with the frequency being the target frequency value into the dielectric barrier discharge structure, so that the dielectric barrier discharge structure releases the degerming substances corresponding to the degerming mode to purify the air.
2. The air cleaning method according to claim 1, wherein the step of using a frequency interval of the pulsed dc signal corresponding to the sterilization mode as the target frequency parameter comprises:
when the sterilization mode is a first mode, taking a first frequency interval of the pulse direct current signal corresponding to the first mode as the target frequency parameter; and
when the sterilization mode is a second mode, taking a second frequency interval of the pulse direct current signal corresponding to the second mode as the target frequency parameter;
the sterilization substances corresponding to the first mode are ozone and plasma, the sterilization substances corresponding to the second mode are plasma, and the frequency in the first frequency interval is greater than the frequency in the second frequency interval.
3. The air cleaning method as recited in claim 2, wherein the first frequency interval is [10KHz,60KHz ] and the second frequency interval is [1KHz,10 KHz).
4. The air cleaning method as recited in claim 3, wherein the first frequency interval is [10KHz,30KHz ] and the second frequency interval is [7KHz,9KHz ].
5. An air cleaning method according to claim 3, wherein the power of the pulsed dc signal is within [5w,40w ], the pulse rising edge of the pulsed dc signal is within [20ns,80ns ], the pulse width of the pulsed dc signal is within [100ns,800ns ], and/or the peak voltage of the pulsed dc signal is within [2kv,8kv ].
6. The air cleaning method according to claim 1, wherein the step of determining, as the target frequency value, the frequency value corresponding to the temperature, the humidity, and the wind speed in the target frequency interval includes:
determining the deviation amount between the maximum critical value and the minimum critical value of the target frequency interval;
determining a target adjustment coefficient according to the temperature, the humidity and the wind speed;
correcting the deviation amount by adopting the target adjustment coefficient to obtain a frequency adjustment amplitude; and
and determining the target frequency value in the target frequency interval according to the critical value of the target frequency interval and the frequency adjustment amplitude.
7. The air cleaning method as recited in claim 6, wherein the step of determining a target adjustment coefficient based on the temperature, the humidity, and the wind speed comprises:
determining a first adjustment coefficient corresponding to the temperature, determining a second adjustment coefficient corresponding to the humidity, and determining a third adjustment coefficient corresponding to the wind speed; and
determining the target adjustment coefficient according to the first adjustment coefficient, the second adjustment coefficient and the third adjustment coefficient;
wherein the first adjustment coefficient increases as the temperature decreases, the second adjustment coefficient increases as the humidity increases, and the third adjustment coefficient increases as the wind speed increases.
8. The air cleaning method according to any one of claims 1 to 7, wherein the sterilization mode includes a first mode and a second mode, and the step of acquiring the sterilization mode of the air cleaning apparatus further comprises, prior to:
acquiring human body detection information in the action space of the air purification device;
determining a sterilization mode of the air cleaning device as the first mode when the human body detection information does not have the characteristic information of the human body; and
determining a sterilization mode of the air cleaning device as the second mode when the human body detection information includes characteristic information of a human body;
the sterilizing substances corresponding to the first mode are ozone and plasma, and the sterilizing substances corresponding to the second mode are plasma.
9. An air cleaning device, characterized in that the air cleaning device comprises:
the dielectric barrier discharge structure is used for releasing the degerming substances;
the pulse direct current power supply is used for outputting a pulse direct current signal and is electrically connected with the dielectric barrier discharge structure; and
a memory, a processor and an air cleaning program stored on the memory and operable on the processor, the pulsed dc power supply being connected to the processor, the air cleaning program when executed by the processor implementing the steps of the air cleaning method according to any one of claims 1 to 8.
10. An air conditioner, characterized in that the air conditioner comprises:
the shell is internally provided with an air duct, and the shell is provided with an air outlet communicated with the air duct; and
the air purification device of claim 9, wherein the air purification device is disposed within the air duct.
11. A readable storage medium, wherein an air cleaning program is stored on the readable storage medium, which when executed by a processor, implements the steps of the air cleaning method according to any one of claims 1 to 8.
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| CN104990138A (en) * | 2015-05-28 | 2015-10-21 | 广东美的制冷设备有限公司 | Air purifier, household electrical appliance and air purifying method |
| CN206377802U (en) * | 2016-12-30 | 2017-08-04 | 陈荻 | Indoor intelligent cleaning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990138A (en) * | 2015-05-28 | 2015-10-21 | 广东美的制冷设备有限公司 | Air purifier, household electrical appliance and air purifying method |
| CN206377802U (en) * | 2016-12-30 | 2017-08-04 | 陈荻 | Indoor intelligent cleaning system |
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