CN113790501A - Plasma sterilization device and method - Google Patents

Plasma sterilization device and method Download PDF

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Publication number
CN113790501A
CN113790501A CN202111214643.2A CN202111214643A CN113790501A CN 113790501 A CN113790501 A CN 113790501A CN 202111214643 A CN202111214643 A CN 202111214643A CN 113790501 A CN113790501 A CN 113790501A
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electrodes
distance
electrode
inter
detection information
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CN113790501B (en
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苏闯
陈彬茜
王婕
袁封明
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Ningbo Aux Electric Co Ltd
Ningbo Aux Intelligent Commercial Air Conditioning Manufacturing Co Ltd
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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
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F24F8/26—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media using ozone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • 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
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/74—Ozone
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The invention provides a plasma sterilization device and a method, the plasma sterilization device adopts plasma generated between electrodes to sterilize air, and comprises the following steps: a plurality of pairs of electrodes, the inter-electrode spacing of the electrodes being adjustable; the detection device comprises one or more of an ozone concentration detection device, an air quality index detection device, a noise detection device and a distance measurement device and a control unit, and controls the electrode spacing of the electrodes to be adjusted to be optimal according to detection information acquired by the detection device. Has the advantages that: the plasma bacteria removing device and the method can achieve the effect that the inter-polar distance of the electrodes is in real-time dynamic adjustment, the inter-polar distance is always in the optimal value, so that the air quality index of the air subjected to bacteria removal through the plasma bacteria removing device is high, the ozone concentration is low, the noise generated by the electrodes is small, and the physical and mental health and the use experience of a user are not influenced.

Description

Plasma sterilization device and method
Technical Field
The invention relates to the field of air purification, in particular to a plasma sterilization device and a plasma sterilization method.
Background
Most of the current air conditioning systems are provided with a sterilizing device, a common sterilizing device is a plasma sterilizing device, wherein the plasma sterilizing device comprises two electrodes, a discharge electrode and a grounding electrode, the discharge electrode is connected with a high-voltage power supply, and plasma is generated between the discharge electrode and the grounding electrode under the condition of electrifying, so that air flowing between the two electrodes is sterilized through the plasma, and the sterilization and purification of the air are realized; however, the polar distance is too large, and the sterilization effect (which is directly reflected by the air quality index) is deteriorated, so how to control the polar distance, reduce noise and ensure the sterilization effect is a main research subject at present.
Disclosure of Invention
The invention solves the problems that the polar plate distance of the existing plasma sterilization device is close, noise and a large amount of ozone are generated in the sterilization process, the use experience of a user is influenced, or the polar distance is far, and the sterilization effect is poor.
To solve the above problems, it is an object of the present invention to provide a plasma sterilization apparatus.
The second purpose of the invention is to provide a plasma sterilization method.
In order to achieve the above object, a first embodiment of the present invention provides a plasma sterilization apparatus for sterilizing air by generating plasma between electrodes, including:
a plurality of pairs of electrodes, the inter-electrode spacing of the electrodes being adjustable;
the detection device comprises any one or more of an ozone concentration detection device, an air quality index detection device, a noise detection device and a distance measurement device, wherein the ozone concentration detection device and the air quality index detection device are used for detecting the ozone concentration and the air quality index of airflow flowing out of a plurality of pairs of electrodes, the noise detection device is used for detecting the noise generated by the electrodes, and the distance measurement device is used for detecting the distance from a person to the electrodes; and
and the control unit controls the electrode distance to be adjusted to be optimal according to the detection information acquired by the detection device.
The plasma sterilization device provided by the embodiment of the invention adjusts the inter-polar distance of the electrodes to be optimal by detecting any one or more parameter information of four parameters, namely the ozone concentration and the air quality index of the air flow flowing out from the electrodes, the noise generated by the electrodes and the distance from a person to the electrodes in real time, namely the inter-polar distance of the electrodes is in real-time dynamic adjustment and is always in an optimal value, so that the air quality index of the air sterilized by the plasma sterilization device is high, the ozone concentration is low, the noise generated by the electrodes is low, and the physical and mental health and the use experience of a user are not influenced.
Further, the plasma sterilization device further comprises an air duct, the electrodes are arranged in the air duct, each pair of electrodes comprises a discharge electrode and a grounding electrode, the grounding electrodes are fixedly connected with the air duct, and the discharge electrodes can slide in the air duct to adjust the electrode spacing.
In the technical scheme, the air duct can be an air inlet channel of an air conditioner.
Furthermore, a rack is arranged on the discharge electrode along the direction of the inter-polar distance, a motor in transmission connection with the rack is arranged on the air duct, and the rack is driven by the motor to move along the direction of the inter-polar distance to adjust the inter-polar distance of the electrode.
In the technical scheme, the motor accurately regulates and controls the inter-polar distance of the electrodes under the control of the control unit.
Furthermore, a baffle is arranged on one side of the discharge electrode, which is far away from the grounding electrode, so that the air flow is prevented from flowing from one side of the discharge electrode, which is far away from the grounding electrode.
In order to achieve the above object, a second aspect of the present invention provides a plasma sterilization method for sterilizing air by generating plasma between electrodes, including:
acquiring detection information, wherein the detection information comprises any one or more of ozone concentration N of airflow flowing out from between the electrodes, air quality index X of the airflow flowing out from between the electrodes, noise magnitude M of the electrodes and distance H from a person to the electrodes;
obtaining the optimal inter-polar distance D of the electrode according to the detection informationOptimization of；
If D ismin≤DOptimization of≤DmaxAdjusting the inter-polar distance of the electrodes to DOptimization of；
If D isOptimization of＜DminAdjusting the inter-polar distance of the electrodes to Dmin；
If D isOptimization of＞DmaxAdjusting the inter-polar distance of the electrodes to Dmax。
According to the plasma sterilization method, the electrode distance of the electrodes is adjusted to be optimal through detecting any one or more parameter information of four parameters including the ozone concentration and the air quality index of airflow flowing out of the electrodes, the noise generated by the electrodes and the distance from a person to the electrodes in real time, namely the electrode distance of the electrodes is in real-time dynamic adjustment and is always in an optimal value, so that the air quality index of the air sterilized by the plasma sterilization device is high, the ozone concentration is low, the noise generated by the electrodes is low, and the physical and mental health and the use experience of a user are not influenced.
Further, the optimal inter-polar distance D of the electrodes is obtained according to the detection informationOptimization ofThe method comprises the following steps:
if the detection information is the distance H between the person and the electrode, and H1≤H≤H2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1＝K1H+C1In the formula, H1、H2、K1、C1Are all constants;
if the detection information is the noise of the electrode, and M is1≤M≤M2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2＝K2M+C2In the formula, M1、M2、K2、C2Are all constants;
if the detection information is the ozone concentration N of the air flow flowing out from between the electrodes, and N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 3＝K3N+C3In the formula, N1、N2、K3、C3Are all constants;
if the detection information is an air quality index X of the air flow flowing out from between the electrodes, and X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DOptimum 4＝K4X+C4In the formula, X1、X2、K4、C4Are all constants;
if the detection information is the distance H between the person and the electrode and the noise magnitude M of the electrode, and H1≤H≤H2、M1≤M≤M2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2；
If the detection information is the distance H between the person and the electrodes and the ozone concentration N of the airflow flowing out from the electrodes, and H1≤H≤H2、N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 3；
If the detection informationIs the distance H from the person to the electrodes and the air mass index X of the air flow flowing out from between the electrodes, and H1≤H≤H2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DOptimum 4；
If the detection information is the noise level M of the electrodes and the ozone concentration N of the air flow flowing out from between the electrodes, and M1≤M≤M2、N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2+DBest 3；
If the detection information is the noise level M of the electrodes and the air quality index X of the air flow flowing out from between the electrodes, and M is1≤M≤M2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2+DOptimum 4；
If the detection information is the ozone concentration N and the air quality index X of the airflow flowing out from the electrode, and N is1≤N≤N2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 3+DOptimum 4；
If the detection information is the distance H from a person to the electrodes, the noise level M of the electrodes and the ozone concentration N of the airflow flowing out of the electrodes, and H1≤H≤H2、M1≤M≤M2、N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2+DBest 3；
If the detection information is the distance H between the human body and the electrode, the noise magnitude M of the electrode and the air quality index X of the air flow flowing out from the electrode, and H1≤H≤H2、M1≤M≤M2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2+DOptimum 4；
If the detection information is the noise of the electrodes M and between the slave electrodesOzone concentration N and air quality index X of the outgoing air flow, and M1≤M≤M2、N1≤N≤N2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2+DBest 3+DOptimum 4；
If the detection information is the distance H between a person and the electrodes, the noise magnitude M of the electrodes, the ozone concentration N of the airflow flowing out of the electrodes and the air quality index X, and H1≤H≤H2、M1≤M≤M2、N1≤N≤N2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2+DBest 3+DOptimum 4。
In the technical scheme, if the detection information is different, the corresponding optimal inter-polar distance calculation methods are also different.
Further, if H < H1Then D isBest 1＝K1H1+C1If H > H2Then D isBest 1＝K1H2+C1；
If M is less than M1Then D isBest 2＝K2M1+C2If M > M2Then D isBest 2＝K2M2+C2；
If N is less than N1Then D isBest 3＝K3N1+C3If N > N2Then D isBest 3＝K3N2+C3；
If X < X1Then D isOptimum 4＝K4X1+C4If X > X2Then D isOptimum 4＝K4X2+C4。
Has the advantages that: the utility model provides a plasma bacteria removing device and method adjust the interelectrode's interelectrode distance to the best through any kind or multiple parameter information in these four parameters of the real-time detection follow air current that flows out between a plurality of pairs of electrodes, the noise size that the electrode produced, people to the distance of electrode, also the interelectrode distance of electrode is in among the real-time dynamic adjustment, the interelectrode distance is in the optimum all the time, the air quality index of the air after like this through the sterilization of plasma bacteria removing device is high, ozone concentration is low, the noise that the electrode produced is little, do not influence user's physical and mental health and use experience.
Drawings
FIG. 1 is a first schematic diagram of a plasma sterilization apparatus according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a plasma sterilization apparatus according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
The reference numbers are as follows:
1. an air duct; 2. a ground electrode; 3. a discharge electrode; 4. a baffle plate; 5. a motor; 6. a rack; 7. a through groove.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The invention provides a plasma sterilization device which adopts plasma generated between electrodes to sterilize air, for example, the plasma sterilization device is arranged in an air inlet or an air inlet channel of an indoor unit of an air conditioner to sterilize and purify the air entering the indoor unit.
In an embodiment of the invention, the plasma sterilization device comprises a plurality of pairs of electrodes, a detection device and a control unit, the plurality of pairs of electrodes are arranged along the flowing direction of air, the air flow can sequentially pass through the plurality of pairs of electrodes, the passing of the air flow through one pair of electrodes means that the air flow passes through between the pair of electrodes, for example, one pair of electrodes comprises a discharge electrode 3 and a grounding electrode 2, the passing of the air flow through one pair of electrodes means that the air flow passes through between the discharge electrode 3 and the grounding electrode 2, the sequentially passing of the air flow through the plurality of pairs of electrodes means that the air flow sequentially passes through the discharge electrode 3 and the grounding electrode 2 of the plurality of pairs of electrodes, and the electrode spacing between the electrodes is adjustable;
the detection device comprises any one or more of an ozone concentration detection device, an air quality index detection device, a noise detection device and a distance measurement device, wherein the ozone concentration detection device and the air quality index detection device are used for detecting the ozone concentration and the air quality index of airflow flowing out of a plurality of pairs of electrodes, namely detecting the ozone concentration and the air quality index of air sterilized by the plasma sterilization device; the distance measuring device is used for detecting the distance from a person to the electrode, and of course, if the plasma sterilization device is applied to the indoor unit of the air conditioner, the distance measuring device can also be used for detecting the distance from the person to the indoor unit of the air conditioner, so that the distance from the person to the electrode or the indoor unit of the air conditioner is detected to protect the health of the human body and prevent the person from approaching the indoor unit of the air conditioner or the electrode from being influenced by noise and ozone generated by the electrode;
the control unit comprises a controller and a processor, wherein the processor is used for analyzing and processing the detection information acquired by the detection device, then sending a control instruction to the controller, and controlling the electrode spacing of the electrodes to be adjusted by the controller so as to ensure that the electrode spacing of the electrodes is always in the optimal level.
The plasma sterilization device provided by the embodiment of the invention adjusts the inter-polar distance of the electrodes to be optimal by detecting any one or more parameter information of four parameters, namely the ozone concentration and the air quality index of the air flow flowing out from the electrodes, the noise generated by the electrodes and the distance from a person to the electrodes in real time, namely the inter-polar distance of the electrodes is in real-time dynamic adjustment and is always in an optimal value, so that the air quality index of the air sterilized by the plasma sterilization device is high, the ozone concentration is low, the noise generated by the electrodes is low, and the physical and mental health and the use experience of a user are not influenced.
In this embodiment, ozone concentration detection instrument can be chooseed for use to ozone concentration detection device, air quality index detection instrument can be chooseed for use to air quality index detection device, noise level meter can be chooseed for use to noise detection device, infrared distancer can be chooseed for use to range unit.
Further, in this embodiment, the plasma sterilization apparatus further includes an air duct 1, as shown in fig. 1 and fig. 2, the air duct 1 may be an air inlet channel of an air conditioner, the electrodes are disposed in the air duct 1, each pair of electrodes includes a discharge electrode 3 and a ground electrode 2, the ground electrode 2 is fixedly connected to the air duct 1, the discharge electrode 3 can slide up and down in the air duct 1 to adjust a polar distance, the method of driving the discharge electrode 3 to slide up and down includes direct driving by a linear motor 5, driving by a linear actuator such as an air cylinder and a hydraulic cylinder, driving by a transmission belt and a transmission chain, and the like, in other embodiments, a rack 6 and a gear may be used for driving, for example, as shown in fig. 2 and fig. 3, the rack 6 is disposed on the discharge electrode 3 along a polar distance direction, a motor 5 drivingly connected to the rack 6 is disposed on the air duct 1, a gear engaged with the rack 6 is disposed on an output shaft of the motor 5, the rack 6 is driven by the motor 5 to move along the inter-polar distance direction to adjust the inter-polar distance of the electrodes, and in fig. 3, a through groove 7 for the rack 6 to pass through is arranged on the air duct 1.
Furthermore, as shown in fig. 1 and 2, a baffle 4 is disposed on a side of the discharge electrode 3 facing away from the ground electrode 2, the baffle 4 is slidably inserted into the air duct 1, and the baffle 4 functions to block the airflow from flowing from the side of the discharge electrode 3 facing away from the ground electrode 2 (i.e., the upper side of the discharge electrode 3 in fig. 1 and 2), so as to ensure that the airflow completely flows between the discharge electrode 3 and the ground electrode 2.
In order to achieve the above object, a second aspect of the present invention provides a plasma sterilization method for sterilizing air by generating plasma between electrodes, including:
s1, acquiring detection information, wherein the detection information comprises any one or more of ozone concentration N of the airflow flowing out from the electrode, air quality index X of the airflow flowing out from the electrode, noise magnitude M of the electrode and distance H from a person to the electrode;
s2, obtaining the optimal inter-polar distance D of the electrode according to the detection informationOptimization of；
If D ismin≤DOptimization of≤DmaxAdjusting the inter-polar distance of the electrodes to DOptimization ofThe electrode spacing may not be infinite or infinitesimal during practical use, and has a range, and the corresponding specific D is usually set according to the specific application environment of the plasma sterilization deviceminAnd DmaxValues of (2), e.g. application of plasma sterilization devices in the field of air-conditioning indoor units, DminIs 20mm, DmaxIs 30 mm;
if D isOptimization of＜DminThen only the inter-polar distance of the electrodes can be adjusted to Dmin；
If D isOptimization of＞DmaxThen only the inter-polar distance of the electrodes can be adjusted to Dmax。
According to the plasma sterilization method, the electrode distance of the electrodes is adjusted to be optimal through detecting any one or more parameter information of four parameters including the ozone concentration N and the air quality index X of air flow flowing out of a plurality of pairs of electrodes, the noise generated by the electrodes M and the distance H from a person to the electrodes in real time, namely the electrode distance of the electrodes is in real-time dynamic adjustment and is always in an optimal value, so that the air quality index of air sterilized by the plasma sterilization device is high, the ozone concentration is low, the noise generated by the electrodes is small, and the physical and mental health and the use experience of a user are not influenced.
Further, S2 obtains the optimal inter-polar distance D of the electrode according to the detection informationOptimization ofThe method comprises the following steps:
if the detection information is the distance H between the person and the electrode, and H1≤H≤H2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1＝K1H+C1In the formula, H1、H2、K1、C1Are constant, and the specific value is related to the specific application environment of the plasma sterilization apparatus, such as the application of the plasma sterilization apparatus in the field of indoor unit of air conditioner, and H10.5m, H2Is 2.5m, K1Is-5, C1Is 32.5, of course, if the detected distance H < H from the electrode1Then D isBest 1＝K1H1+C1If H > H2Then D isBest 1＝K1H2+C1；
If the detection information is the noise of the electrode, and M is1≤M≤M2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2＝K2M+C2In the formula, M1、M2、K2、C2Are constant, and the specific value is related to the specific application environment of the plasma sterilization apparatus, such as the application of the plasma sterilization apparatus in the field of indoor unit of air conditioner, then M1Is 30dB, M2Is 65dB, K2Is-2/7, C2270/7, of course, if the noise level M < M of the electrode is detected1Then D isBest 2＝K2M1+C2If M > M2Then D isBest 2＝K2M2+C2；
If the detection information is the ozone concentration N of the air flow flowing out from between the electrodes, and N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 3＝K3N+C3In the formula, N1、N2、K3、C3Are constant, and the specific value is related to the specific application environment of the plasma sterilization apparatus, such as the application of the plasma sterilization apparatus in the field of indoor unit of air conditioner, and N10.15ppm, N20.3ppm, K3Is-200/3, C3Is 40, of course, if N < N1Then D isBest 3＝K3N1+C3If N > N2Then D isBest 3＝K3N2+C3；
If the detection information is an air quality index X of the air flow flowing out from between the electrodes, and X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DOptimum 4＝K4X+C4In the formula, X1、X2、K4、C4Are all constants, specific forThe value is related to the specific application environment of the plasma sterilization device, for example, the plasma sterilization device is applied in the field of indoor unit of air conditioner, then X1Is 30, X2Is 300, K4Is 1/27, C4170/9, of course, if X < X1Then D isOptimum 4＝K4X1+C4If X > X2Then D isOptimum 4＝K4X2+C4；
If the detection information is the distance H between the person and the electrode and the noise magnitude M of the electrode, and H1≤H≤H2、M1≤M≤M2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2；
If the detection information is the distance H between the person and the electrodes and the ozone concentration N of the airflow flowing out from the electrodes, and H1≤H≤H2、N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 3；
If the detection information is the distance H between the person and the electrode and the air quality index X of the air flow flowing out from the electrode, and H1≤H≤H2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DOptimum 4；
If the detection information is the noise level M of the electrodes and the ozone concentration N of the air flow flowing out from between the electrodes, and M1≤M≤M2、N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2+DBest 3；
If the detection information is the noise level M of the electrodes and the air quality index X of the air flow flowing out from between the electrodes, and M is1≤M≤M2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2+DOptimum 4；
If the detection information is the ozone concentration N and the air quality index of the airflow flowing out from the electrodeX, and N1≤N≤N2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 3+DOptimum 4；
If the detection information is the distance H from a person to the electrodes, the noise level M of the electrodes and the ozone concentration N of the airflow flowing out of the electrodes, and H1≤H≤H2、M1≤M≤M2、N1≤N≤N2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2+DBest 3；
If the detection information is the distance H between the human body and the electrode, the noise magnitude M of the electrode and the air quality index X of the air flow flowing out from the electrode, and H1≤H≤H2、M1≤M≤M2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2+DOptimum 4；
If the detection information is the noise level M of the electrodes, the ozone concentration N of the airflow flowing out from the electrodes and the air quality index X, and M1≤M≤M2、N1≤N≤N2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 2+DBest 3+DOptimum 4；
If the detection information is the distance H between a person and the electrodes, the noise magnitude M of the electrodes, the ozone concentration N of the airflow flowing out of the electrodes and the air quality index X, and H1≤H≤H2、M1≤M≤M2、N1≤N≤N2、X1≤X≤X2Then the optimum inter-polar distance D of the electrodesOptimization of＝DBest 1+DBest 2+DBest 3+D Optimization of4。
Therefore, in the technical scheme, if the detection information is different, the corresponding calculation method of the optimal inter-polar distance is also different.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A plasma sterilization apparatus for sterilizing air by generating plasma between electrodes, comprising:
a plurality of pairs of electrodes, the inter-electrode spacing of the electrodes being adjustable;
the detection device comprises any one or more of an ozone concentration detection device, an air quality index detection device, a noise detection device and a distance measurement device, wherein the ozone concentration detection device and the air quality index detection device are used for detecting the ozone concentration and the air quality index of airflow flowing out of a plurality of pairs of electrodes, the noise detection device is used for detecting the noise generated by the electrodes, and the distance measurement device is used for detecting the distance from a person to the electrodes; and
and the control unit controls the electrode distance to be adjusted to be optimal according to the detection information acquired by the detection device.
2. The plasma sterilization apparatus as recited in claim 1, further comprising an air duct, wherein said electrodes are disposed in said air duct, each pair of electrodes comprises a discharge electrode and a ground electrode, said ground electrode is fixedly connected to said air duct, and said discharge electrode is slidable within said air duct to adjust the distance between said electrodes.
3. The plasma sterilization apparatus as claimed in claim 2, wherein the discharge electrode is provided with a rack along the inter-polar distance direction, the air duct is provided with a motor in transmission connection with the rack, and the inter-polar distance of the discharge electrode is adjusted by moving the rack along the inter-polar distance direction by the motor.
4. The plasma sterilization apparatus as recited in claim 2, wherein a side of said discharge electrode facing away from said ground electrode is provided with a baffle to block the flow of air from the side of said discharge electrode facing away from said ground electrode.
5. A plasma sterilization method for sterilizing air by generating plasma between electrodes, comprising:
acquiring detection information, wherein the detection information comprises any one or more of ozone concentration N of airflow flowing out from between the electrodes, air quality index X of the airflow flowing out from between the electrodes, noise magnitude M of the electrodes and distance H from a person to the electrodes;
obtaining the optimal inter-polar distance D of the electrode according to the detection informationOptimization of；
If D ismin≤DOptimization of≤DmaxAdjusting the inter-polar distance of the electrodes to DOptimization of；
If D isOptimization of＜DminAdjusting the inter-polar distance of the electrodes to Dmin；
If D isOptimization of＞DmaxAdjusting the inter-polar distance of the electrodes to Dmax。
6. The plasma sterilization method as set forth in claim 5, wherein the optimal inter-polar distance D of the electrodes is obtained based on the detection informationOptimization ofThe method comprises the following steps:
if the detection information is the distance H between the person and the electrode, and H1≤H≤H2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000021
In the formula, H1、H2、K1、C1Are all constants;
if the detection information is the noise of the electrode, and M is1≤M≤M2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000022
In the formula, M1、M2、K2、C2Are all constants;
if the detection information is between the slave electrodesOzone concentration N of the outflowing gas stream, and N1≤N≤N2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000023
In the formula, N1、N2、K3、C3Are all constants;
if the detection information is an air quality index X of the air flow flowing out from between the electrodes, and X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000024
In the formula, X1、X2、K4、C4Are all constants;
if the detection information is the distance H between the person and the electrode and the noise magnitude M of the electrode, and H1≤H≤H2、M1≤M≤M2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000025
If the detection information is the distance H between the person and the electrodes and the ozone concentration N of the airflow flowing out from the electrodes, and H1≤H≤H2、N1≤N≤N2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000026
Figure FDA0003310294290000027
If the detection information is the distance H between the person and the electrode and the air quality index X of the air flow flowing out from the electrode, and H1≤H≤H2、X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000028
Figure FDA0003310294290000029
If the detection information is the noise level M of the electrodes and the ozone concentration N of the air flow flowing out from between the electrodes, and M1≤M≤M2、N1≤N≤N2Then the optimum inter-pole distance of the electrodes
Figure FDA00033102942900000210
Figure FDA0003310294290000031
If the detection information is the noise level M of the electrodes and the air quality index X of the air flow flowing out from between the electrodes, and M is1≤M≤M2、X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000032
Figure FDA0003310294290000033
If the detection information is the ozone concentration N and the air quality index X of the airflow flowing out from the electrode, and N is1≤N≤N2、X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000034
Figure FDA0003310294290000035
If the detection information is the distance H from a person to the electrodes, the noise level M of the electrodes and the ozone concentration N of the airflow flowing out of the electrodes, and H1≤H≤H2、M1≤M≤M2、N1≤N≤N2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000036
If the detection information is the distance H between the human body and the electrode, the noise magnitude M of the electrode and the air quality index X of the air flow flowing out from the electrode, and H1≤H≤H2、M1≤M≤M2、X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000037
If the detection information is the noise level M of the electrodes, the ozone concentration N of the airflow flowing out from the electrodes and the air quality index X, and M1≤M≤M2、N1≤N≤N2、X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000038
If the detection information is the distance H between a person and the electrodes, the noise magnitude M of the electrodes, the ozone concentration N of the airflow flowing out of the electrodes and the air quality index X, and H1≤H≤H2、M1≤M≤M2、N1≤N≤N2、X1≤X≤X2Then the optimum inter-pole distance of the electrodes
Figure FDA0003310294290000039
Figure FDA00033102942900000310
7. The plasma sterilization method of claim 6, wherein if H < H1Then, then
Figure FDA00033102942900000311
Figure FDA00033102942900000312
If H > H2Then, then
Figure FDA00033102942900000313
8. The plasma sterilization method of claim 6, wherein if M < M1Then, then
Figure FDA00033102942900000314
Figure FDA00033102942900000315
If M > M2Then, then
Figure FDA00033102942900000316
9. The plasma sterilization method of claim 6, wherein if N < N1Then, then
Figure FDA00033102942900000317
Figure FDA00033102942900000318
If N > N2, then
Figure FDA00033102942900000319
10. The plasma sterilization method of claim 6, wherein if X < X1Then, then
Figure FDA0003310294290000041
Figure FDA0003310294290000042
If X > X2Then, then
Figure FDA0003310294290000043
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