CN110671756B - Indoor air purification method - Google Patents
Indoor air purification method Download PDFInfo
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- CN110671756B CN110671756B CN201810708914.1A CN201810708914A CN110671756B CN 110671756 B CN110671756 B CN 110671756B CN 201810708914 A CN201810708914 A CN 201810708914A CN 110671756 B CN110671756 B CN 110671756B
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Classifications
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
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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
- F24F8/40—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to an indoor air purification method, which comprises the following steps: the negative ions generated by the air purification system are used for removing haze and formaldehyde from the indoor air; sterilizing and disinfecting the indoor air by using ozone generated by the air purification system; after sterilization and disinfection treatment, an air purification system is used for removing odor in indoor air; wherein, air purification system removes formaldehyde sterilization module, ozone treatment module including removing the haze. According to the indoor air purification method, haze removal, formaldehyde removal purification treatment or sterilization and disinfection treatment are carried out according to indoor use conditions and indoor air conditions, after the ozone is used for sterilization and disinfection treatment, ozone removal treatment can be carried out according to indoor ozone concentration, so that the situation that ozone is remained in the air to hurt the body is avoided, after the haze removal, formaldehyde removal treatment, sterilization and disinfection treatment and the ozone removal treatment, the indoor air conditions can be improved, and virus propagation caused by overhigh haze concentration or residual germs in the room is avoided.
Description
Technical Field
The invention belongs to the technical field of air purification, and particularly relates to an indoor air purification method.
Background
Influenza is an acute respiratory infectious disease caused by influenza virus, and influenza epidemic diseases occur in many outbreaks in the world in the last hundred years. In recent years, the influenza epidemic intensity is continuously enhanced, and the winter is the peak season of the influenza, so that the hospital pediatrics are successively full. Influenza patients and recessive infectors are the main infectious agents of influenza, and are infectious from the end of the latent period to the acute period. The toxin expelling time of the virus in the respiratory secretions of the infants can exceed 1 week. Influenza is mainly transmitted by droplets such as sneezing and coughing, and also can be transmitted by direct or indirect contact with mucous membranes such as oral cavity, nasal cavity and eyes. At the same time, contact with virus-contaminated items can also cause infection, which remains contagious after 24 hours. Young infants like to gnaw or lick toy books in a classroom and are more easily infected with influenza virus.
Air pollution and influenza virus transmission are in a close and inseparable relationship. The research on the transmission of influenza viruses in the air shows that the viruses are mixed with dust and haze particles, involved in the atmosphere and transmitted in a long distance. The presence of haze results in a significant increase in the influenza virus content in the air, 21 to 31 times that of clean air. Researches show that the survival rate of the attached and combined influenza virus and haze particles is enhanced, and the long-range transmission of the influenza virus is facilitated. Teachers in kindergartens and primary and secondary schools are the main places for spreading viruses, so that a technology capable of comprehensively, efficiently and thoroughly removing haze and sterilizing in classrooms is needed.
However, the existing methods for removing haze and sterilizing are all independent processes of removing haze, removing formaldehyde or sterilizing, and cannot utilize a unified system to remove haze, remove formaldehyde and sterilize indoor air according to indoor actual use conditions, so that the indoor air is polluted and viruses are spread.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an indoor air purification method.
One embodiment of the present invention provides an indoor air purification method, including:
the negative ions generated by the air purification system are used for removing haze and formaldehyde from the indoor air;
sterilizing and disinfecting the indoor air by using the ozone generated by the air purification system;
after sterilization and disinfection treatment, the air purification system is used for removing ozone in indoor air; wherein, air purification system removes formaldehyde sterilization module, ozone treatment module including removing the haze.
In one embodiment of the invention, the haze and formaldehyde removal purification treatment of indoor air by using negative ions generated by the air purification system comprises the following steps:
acquiring the concentration of indoor PM2.5 particles, and judging whether the concentration of the PM2.5 particles is greater than a first threshold value;
when the time is first opening time, the adjustment remove the haze and remove formaldehyde sterilization module's anion generating unit and collecting board to first settlement distance in order to produce the anion, utilize the anion removes the haze, removes formaldehyde purification treatment to the room air.
In one embodiment of the invention said first set distance is 7-8 cm.
In one embodiment of the present invention, after the indoor air is subjected to the haze and formaldehyde removing purification treatment by using the negative ions generated by the air purification system, the method further comprises:
and when the time is the first closing time, the haze and formaldehyde removal purification treatment of the indoor air is stopped.
In one embodiment of the present invention, the sterilizing treatment of the indoor environment using the ozone generated by the air purification system comprises:
when the time is the second opening time, the adjustment remove the negative ion generating unit and the collecting plate of haze removal formaldehyde sterilization module and set for the distance with the second in order to produce ozone, utilize ozone carries out the disinfection of disinfecting to the indoor environment.
In one embodiment of the invention, said second set distance is 2-3 cm.
In one embodiment of the present invention, after the indoor environment is sterilized and disinfected by the ozone generated by the air purification system, the method further comprises:
and stopping the sterilization and disinfection treatment of the indoor air when the time is the second closing time.
In one embodiment of the present invention, the removing ozone in the indoor air using the air purification system comprises:
and when the time is the third opening time, the ozone treatment module is utilized to remove the ozone in the indoor air.
In one embodiment of the present invention, after removing ozone from indoor air by using the air purification system, the method further comprises:
when the time is the third closing time, judging whether the ozone concentration is smaller than a first threshold value;
if not, continuously removing the ozone in the indoor air;
if so, the removal of ozone in the air is stopped.
The indoor air purification method can perform haze removal, formaldehyde removal purification treatment or sterilization and disinfection treatment according to indoor use conditions and indoor air conditions, and after the ozone is used for sterilization and disinfection treatment, the ozone removal treatment can be performed according to the indoor ozone concentration so as to prevent ozone from being remained in the air and causing harm to human bodies.
Drawings
Fig. 1 is a schematic flow chart of an indoor air purification method according to an embodiment of the present invention;
FIG. 2 is a block diagram of an indoor air purification system according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a haze and formaldehyde removing and sterilizing module provided in an embodiment of the present invention;
FIG. 4 is a block diagram of a voltage input device according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an ozone treatment module according to an embodiment of the present invention;
FIG. 6 is a block diagram of a control module according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of another haze and formaldehyde removing module according to an embodiment of the present invention;
fig. 8 is a block diagram of another indoor air purification system according to an embodiment of the present invention;
fig. 9 is a block diagram of a further indoor air purification system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart of an indoor air purification method according to an embodiment of the present invention. The air purification method provided by the embodiment of the invention comprises the following steps:
the negative ions generated by the air purification system are used for removing haze and formaldehyde from the indoor air;
sterilizing and disinfecting the indoor air by using the ozone generated by the air purification system;
after sterilization and disinfection treatment, the air purification system is used for removing ozone in indoor air; wherein, air purification system removes formaldehyde sterilization module, ozone treatment module including removing the haze.
According to the indoor air purification method, the air purification system can be used for haze removal, formaldehyde removal purification or sterilization and disinfection treatment according to indoor use conditions and indoor air conditions, and after the ozone is used for sterilization and disinfection treatment, the air purification system can be used for ozone removal treatment according to indoor ozone concentration, so that the situation that ozone is remained in the air and the body is injured is avoided.
Wherein, air purification system removes formaldehyde sterilization module, ozone processing module, control module and detection module including removing the haze.
Remove the haze and remove formaldehyde sterilization module and include anion generating unit and collecting board, when adjusting the distance between anion generating unit and the collecting board for first settlement distance, remove the haze and remove formaldehyde sterilization module and can utilize the anion that produces to remove the haze in the air and remove formaldehyde purification treatment, when adjusting the distance between anion generating unit and the collecting board for the second settlement distance, remove the haze and remove formaldehyde sterilization module and utilize the ozone that produces to carry out the disinfection and sterilization treatment.
The ozone treatment module is used for removing the ozone generated by the haze and formaldehyde removal sterilization module.
The control module comprises a haze and formaldehyde removing sterilization control unit, an ozone treatment control unit and a timing unit, wherein the haze and formaldehyde removing sterilization control unit is electrically connected with the haze and formaldehyde removing sterilization module and is used for controlling the opening and closing of the haze and formaldehyde removing sterilization module; the ozone treatment control unit is electrically connected with the ozone treatment module and is used for controlling the opening and closing of the ozone treatment module; the timing unit is respectively connected with the haze removal formaldehyde sterilization control unit and the ozone treatment control unit, and is used for respectively carrying out timing operation on the opening time and the running time of the haze removal formaldehyde sterilization module and the ozone treatment module.
The detection module is electrically connected with the ozone treatment control unit and is used for detecting the concentration of ozone in the air.
In order to better explain the indoor air purification method of the present invention, the present embodiment will describe the air purification method in detail:
step 1.1, utilize timing unit to set for and remove the haze and remove the first opening time of formaldehyde sterilization module, first opening time is that the start removes the haze and removes the formaldehyde sterilization module and remove the haze, remove the time of formaldehyde purification treatment, when the time is first opening time, timing unit send signal to removing the haze and removing formaldehyde sterilization the control unit, it removes the haze and removes the distance that formaldehyde sterilization module adjustment anion generating unit and collection board between the control unit control and be first settlement distance to make and remove the haze and remove formaldehyde sterilization module and produce the anion and remove the haze to the room air, remove formaldehyde purification treatment.
Preferably, the first set distance is 7-8 cm.
The first opening time can be set according to the specific use condition of the air purification system, and the first opening time can be set before a person enters a room or when the person starts to enter the room. For example, if the air purification system is used in the classroom of the kindergarten, the time of the student's study in the morning of the kindergarten can be set, if the time of the student's study is 8 o ' clock, then can set the first opening time to 7 o ' clock, when the time is 7 o ' clock in the morning, remove the haze and remove the formaldehyde sterilization module and just begin to remove the haze, remove the operation of formaldehyde purification processing to can optimize the air quality before the student gets into the kindergarten.
Step 1.2, utilize the timing unit to set for and remove the haze and remove the first close time of formaldehyde sterilization module, first close time is to close and removes the haze and remove the time that formaldehyde sterilization module removed the haze, removed formaldehyde purification treatment, when the time is first close time, timing unit send signal to remove the haze and remove formaldehyde sterilization the control unit, remove the haze and remove formaldehyde sterilization the control unit control and remove the haze and remove formaldehyde sterilization module and stop removing the haze, remove formaldehyde purification treatment to the room air.
The first closing time can be set according to the specific use condition of the air purification system, and the first closing time can be set after all or most of people leave the room or when all people leave the room. For example, if the air purification system is used in the classroom of the kindergarten, the time of leaving school can be set according to the school student, if the school time of leaving school is 16 points, the first closing time can be set to 17 points, and when the time is 17 points, the haze removal and formaldehyde removal sterilization module stops the operation of haze removal and formaldehyde removal purification treatment.
Wherein, first opening time all is in the intensive time quantum of kindergarten student to first closing time, and air purification system removes the haze, removes formaldehyde purification processing at this time quantum always to can guarantee that the student of kindergarten is in a good environment.
step 2.1, utilize the timing unit to set for and remove the second opening time that the haze removed formaldehyde sterilization module, the second opening time is the time that the haze removed formaldehyde sterilization module and carry out the disinfection processing, when the time is the second opening time, timing unit send signal to removing the haze and removing formaldehyde sterilization the control unit, it removes the distance that the haze removed formaldehyde sterilization the control unit control and removes between formaldehyde sterilization module adjustment anion generating element and the collection board and set for the distance for the second to make and remove the haze and remove formaldehyde sterilization module and produce a large amount of ozone, utilize ozone to carry out the disinfection processing that disinfects to the room air.
Preferably, the second set distance is 2-3 cm.
Wherein, the settlement of second opening time can be set for according to air purification system's specific service behavior, the second opening time can be set for and accomplish except that the haze removes formaldehyde disinfection and isolation processing after, for example, if air purification system is used in the classroom of kindergarten, can set for according to the time that the personnel in the classroom of kindergarten all left, the time of the whole personnel in the classroom of leaving is 19 points, can cause the injury to people's health because of a large amount of ozone, so set for 20 points with the second opening time, when the time is 20 points, remove the haze and remove formaldehyde disinfection module and just begin the operation that carries out disinfection and isolation processing, so that eliminate the virus and the bacterium that exist indoor, in order to avoid indoor virus and bacterium to cause the injury to indoor personnel.
Step 2.2, utilize the timing unit to set for and remove the second closing time that haze removes the formaldehyde sterilization module, the second closing time is the time of closing and removing the haze and remove the formaldehyde sterilization module and carry out the disinfection processing, and when the time was the second closing time, the timing unit sends the signal to removing the haze and remove the formaldehyde sterilization control unit, removes the haze and removes the control of formaldehyde sterilization control unit and control and remove the haze and remove the formaldehyde sterilization module and stop to carry out the disinfection processing that disinfects to the room air.
Wherein, the setting of second off-time can be set for according to air purification system's specific in service behavior, and the clean time of indoor air sterilization disinfection processing is set for to second off-time, for example, if air purification system is used in the classroom of kindergarten, can set for according to the area in the classroom of kindergarten, obtain the clean time of indoor air sterilization disinfection processing according to the ozone concentration of air purification system release and the area in classroom, if need 5 hours, set for second off-time to 1 point in the morning, when the time is 1 point, remove haze and remove formaldehyde sterilization module and just stop the operation of sterilization disinfection processing.
The second opening time and the second closing time are all in a time period when no person comes in and goes out of the classroom, and the air purification system is always subjected to sterilization and disinfection treatment in the time period, so that bacteria and viruses in the classroom can be eliminated, and the environment where students in a kindergarten are located is improved.
and 3.1, setting a third opening time of the ozone treatment module by using the timing unit, wherein the third opening time is the time for starting the ozone treatment module to remove the ozone in the indoor air, and when the third opening time is the time, the timing unit sends a signal to the ozone treatment control unit, and the ozone treatment control unit controls and starts the ozone treatment module so as to remove the ozone in the indoor air. Since the residual ozone in the air may cause harm to human body, the ozone in the room needs to be removed after the sterilization and disinfection process is completed, so that the ozone in the room is removed by the ozone treatment module.
The third opening time can be set according to the specific use condition of the air purification system, and the third opening time needs to be set after the sterilization and disinfection treatment is completed, for example, if the air purification system is used in a classroom of a kindergarten, the second closing time of the air purification system is 1 point in the morning, the third opening time can be set to 1 point in the morning, the timing unit sends a signal to the ozone treatment control unit, and the ozone treatment control unit controls the starting of the ozone treatment module so as to remove the ozone in the indoor air.
3.2, setting third closing time of the ozone treatment module by using the timing unit, wherein the third closing time is the time for closing the ozone treatment module to remove the ozone in the indoor air, and when the third closing time is the time, detecting whether the concentration of the ozone is smaller than a first threshold value by using the detection module;
if not, the ozone treatment control unit controls the ozone treatment module to continuously remove the ozone in the indoor air until the detection module detects that the concentration of the ozone is smaller than a first threshold value, and the ozone treatment module stops the operation of removing the ozone; if when ozone in the ozone treatment module treatment chamber, when the time has reached first opening time, when detection module detected ozone concentration and still was greater than first threshold value, then reported to the police through control module control second alarm to the warning does not surely get into indoorly, and need overhaul and maintain air purification system.
If so, the ozone treatment control unit controls the ozone treatment module to stop the operation of removing ozone;
the third closing time can be set according to the specific use condition of the air purification system, and the third closing time is set to be the time when the indoor ozone concentration is smaller than the first threshold value, for example, if the air purification system is used in a classroom of a kindergarten, the third closing time can be set to be 5 am according to the time when the indoor ozone concentration is smaller than the first threshold value, if 4 hours are needed, the ozone treatment module continues to remove the ozone in the indoor air if the ozone concentration is larger than the first threshold value, and if the ozone concentration is smaller than the first threshold value, the ozone treatment module stops removing the ozone in the indoor air.
Example two
Referring to fig. 2, fig. 2 is a block diagram of an indoor air purification system according to an embodiment of the present invention. On the basis of the above embodiment, this embodiment provides an air purification system, and wherein, air purification system removes formaldehyde sterilization module 1, ozone treatment module 2, control module 3, detection module 4, second alarm 5 and power module 6 including removing the haze.
Specifically, referring to fig. 3, fig. 3 is a schematic structural diagram of a haze and formaldehyde removing sterilization module according to an embodiment of the present invention, where the haze and formaldehyde removing sterilization module 1 includes a lower protection plate 11, an anion generating unit 12, an electric push rod 13, a collecting plate 14, and an upper protection plate 15, where the anion generating unit 12 includes an emitting pin 121, a pin plate 122, and a voltage input device 123, referring to fig. 4, fig. 4 is a block diagram of a voltage input device according to an embodiment of the present invention, where the voltage input device 123 includes a voltage input circuit 1231 and a transformer 1232, the voltage input circuit 1231 is configured to receive an input voltage provided by a power supply module, and the transformer 1232 is configured to provide a discharge voltage adapted to the emitting pin 121. The collecting plate 14 comprises a conductive net and formaldehyde removing paper, the formaldehyde removing paper is located below the conductive net, the formaldehyde removing paper is adhered to the bottom of the conductive net, the conductive net is used for generating corona discharge with the negative ion generating unit 12, ion current can be formed between the negative ion generating unit 12 and the conductive net, a certain amount of ozone can be released by adjusting the distance between the negative ion generating unit 12 and the conductive net, the formaldehyde removing paper is used for removing formaldehyde, and the ion current formed between the negative ion generating unit 12 and the conductive net promotes formaldehyde to flow to the adsorption paper, so that the function of removing formaldehyde is achieved.
For example, formaldehyde-removing paper can be Japanese imported Shang Bao formaldehyde-removing paper.
Wherein, the lower guard plate 11 and the upper guard plate 15 are PCB boards, the lower guard plate 11 is used for installing and protecting the anion generating unit 12, the upper guard plate 15 is used for installing and protecting the collecting plate 14, the electric push rod 13 is mainly a linear actuating mechanism composed of a motor push rod, a control device and other mechanisms, the extension or the shortening of the electric push rod 2 can drive the collecting plate 14 and the upper guard plate 15 to move up and down, thereby adjusting the distance between the anion generating unit 12 and the collecting plate 14, when the distance between the anion generating unit 12 and the collecting plate 14 is 7-8cm, an ion flow is generated between the anion generating unit 12 and the collecting plate 14, thereby utilizing the ion flow to carry haze particles in the air to the collecting plate 14, thereby removing the haze in the air, the air purifying system adopts the collecting plate 14, so that the electrons generated by the anion generating unit 12 form a directional ion flow, the efficiency of removing haze and formaldehyde is high, the collected haze is deposited on the collecting plate 14, and the cleaning is easy; no additional air draft device is needed; when the distance between the negative ion generating unit 12 and the collecting plate 14 is 2-3cm, the negative ion generating unit 12 and the collecting plate 14 interact with each other to generate a large amount of ozone, so that the indoor sterilization and disinfection treatment is performed by using the ozone. The sterilization and disinfection device adopted at present can only disinfect the surface of an irradiated object generally, for example, the penetrability of far ultraviolet rays is poor, a plurality of desk, chair and book toys in a young classroom are numerous and diverse, and ozone can perform comprehensive and thorough sterilization and disinfection treatment in the classroom.
The needle point direction of the emission needle 121 faces the collecting plate 14, the needle tail of the collecting plate 14 is electrically connected with the negative output end of the transformer 1232, and the positive output end of the transformer 103 is electrically connected with the collecting plate 14;
the emitting needle is a steel needle, and can also be a structure which is made of metal or carbon elements and comprises a tip. The collecting plate 14 may be a graphene plate, an aluminum plate, a steel plate, preferably, the collecting plate 14 is a steel plate. Preferably, the collection plate 14 may also be coated with a conductive, oil-free, and water-free material to facilitate cleaning. Such as carbon nanotubes, graphene, carbon fibers, and the like.
Wherein, remove haze and remove formaldehyde sterilization module 1 and utilize the anion to purify, remove dust, remove flavor, disinfect to the air, its and traditional air purification principle difference is with the anion as the effect factor, initiatively goes out to strike the harmful substance in catching the air, and the field electron emission that removes haze and remove formaldehyde sterilization module 1 is a non-thermal discharge, and wherein anion generating unit 12 is the discharge device of needle point area direct current burden high pressure. The negative ion generating unit 12 and the collecting plate 14 are corona-discharged, and an ion flow is formed between the emitting needle 121 of the negative ion generating unit 12 and the collecting plate 14 while a certain amount of ozone is discharged. The ion flow can be attached to the haze particulate matter, lets the haze granule flow direction collecting plate 14 and collected, need not air exhauster or filter screen, and is very quiet, can remove the haze, remove formaldehyde to the classroom during class on daytime. Ozone release rate shortens and is showing the increase along with the distance between anion generating unit 12 and the collecting plate 14, so when nobody in the classroom at night, can make to remove haze and remove formaldehyde sterilization module 1 release ozone through reducing the distance between anion generating unit 12 and the collecting plate 14 to utilize ozone to carry out the disinfection of disinfecting to the classroom.
Ozone release rate is mainly by the electrode spacing decision, and increase electrode spacing makes ozone release rate be in an extremely low quantization platform, and the ozone of release is few, can reach the indoor environmental quality standard of student on class on daytime, still keeps higher air purification simultaneously and removes the haze, removes formaldehyde efficiency, collects the disinfection to the influenza virus in pollution particles thing and the air. And shorten the electrode spacing and make ozone release rate be in a higher quantization platform, the ozone concentration of release is very high, can reach the disinfection standard of disinfecting when nobody is night, carries out effective inactivation to the influenza virus of air neutralization article surface. After the sterilization and disinfection are finished, the air exhauster can quickly suck the ozone back and decompose the ozone through the manganese-containing catalyst layer so as to prevent a large amount of ozone from leaking out of the classroom to cause air pollution, and meanwhile, the concentration of the ozone is ensured to be restored to the indoor environmental quality standard when students go to class the next morning.
Wherein, remove haze and remove that formaldehyde module 1's that disinfects haze efficiency satisfies:
wherein eta is haze removal efficiency, d is the distance from an emission needle of the negative ion generating unit to the collecting plate, and the unit is cm; rho is the density of the emitting needle and the unit is per cm2(ii) a V is the voltage of the emitting needle and the unit is kV; v is the wind speed in m/s.
The relation between the haze removal efficiency eta and the distance d from the emission needle to the collecting plate meets the following requirements:
wherein, when the distance d of launching needle point to the collecting board was 7-8cm, this within range electron can produce the rapid flow from launching the needle to between the collecting board, attached to on the haze granule at the flow in-process, removed the haze, contaminated air and clean air can freely flow in and flow out simultaneously, guarantee higher haze purification efficiency, when rho, V, v were the fixed value, it is the highest to remove haze efficiency eta under this distance.
The haze and formaldehyde removing sterilization module adopts an I-shaped design, so that air can flow in from the side surface, the flowing speed of air can be increased without drilling holes on the collecting plate, and the dust collecting effect is improved; the collected pollutants are conveniently cleaned by the collecting plate. The I-shaped design can be matched with the plate type design of a circle, a square or other various shapes, and the air ionization phenomenon between the collection plate and the stainless steel needle can be ensured.
Specifically, referring to fig. 5, fig. 5 is a schematic structural diagram of an ozone treatment module according to an embodiment of the present invention, where the ozone treatment module 2 includes a housing 21, an exhaust fan 22 and an ozone decomposition device 23, when the haze removing and formaldehyde removing sterilization module 1 releases ozone and performs sterilization and disinfection on an indoor environment, the ozone treatment module 2 is started, ozone in air enters the housing 21 through an air inlet 211 through the exhaust fan 22, then the ozone flows through the ozone decomposition device 23 under the action of the exhaust fan 22, the ozone is decomposed into oxygen through the decomposition action of the ozone decomposition device 23, and then a part of the ozone decomposed into oxygen is discharged into the air through an air outlet 212.
Preferably, the ozone decomposition device 23 is used for catalytically decomposing ozone by using a manganese catalyst layer.
Specifically, referring to fig. 6, fig. 6 is a block diagram of a control module according to an embodiment of the present invention, and the control module 3 includes a haze and formaldehyde removing sterilization control unit 31, an ozone treatment control unit 32, and a timing unit 33.
Preferably, the haze and formaldehyde removing sterilization control unit 31 is KFJ/280 × 130 × 1.6 (MM).
Preferably, ozone treatment control unit 32 is of the type S7-300 PLC.
Preferably, timing unit 33 is FX3G-40MR in model number.
Wherein, when the haze and formaldehyde removing function of the haze and formaldehyde removing sterilization module 1 needs to be started in daytime, the timing unit 33 can be used for setting time, for example, the timing unit 33 is used for setting the opening time of the haze and formaldehyde removing sterilization module 1 to be 7 am and the closing time to be 17 pm, when the time is 7 am, the timing unit 33 transmits a signal to the haze and formaldehyde removing sterilization control unit 31, the haze and formaldehyde removing sterilization control unit 31 firstly controls the electric push rod 13 to carry out distance adjustment, so that the distance between the negative ion generating unit 12 and the collecting plate reaches the distance of the haze and formaldehyde removing functions, the haze and formaldehyde removing sterilization control unit 31 controls the negative ion generating unit 12 to start to release electrons to generate ion flow to carry out the treatment of removing haze and dust particles, when the time is 17 pm, the timing unit 33 transmits the signal to the haze and formaldehyde removing sterilization control unit 31, the haze and formaldehyde removing sterilization control unit 31 controls the haze and formaldehyde removing sterilization module 1 to stop haze and formaldehyde removing actions; when the persons in the classroom leave the classroom, if the time is 20 pm, the timing unit 33 sets the opening time of the haze and formaldehyde removing sterilization control unit 31 to be 20 pm and the closing time to be 1 am, when the time is 20 o' clock, the timing unit 33 transmits a signal to the haze and formaldehyde removing sterilization control unit 31, the haze and formaldehyde removing sterilization control unit 31 first controls the electric push rod 13 to perform distance adjustment, so that the distance between the negative ion generating unit 12 and the collecting plate reaches a distance where a large amount of ozone is discharged, and controls the anion generating unit 12 to start releasing electrons through the haze and formaldehyde removing sterilization control unit 31, therefore, the generated ozone is used for sterilization and disinfection, when the time is 1 point in the morning, the timing unit 33 transmits a signal to the haze and formaldehyde removing sterilization control unit 31, and the haze and formaldehyde removing sterilization control unit 31 controls the haze and formaldehyde removing sterilization module 1 to stop sterilization and disinfection actions; after the sterilization and disinfection treatment is completed, the released ozone needs to be treated, the timing unit 33 sets the on time of the ozone treatment control unit 32 to be 1 am and the off time to be 5 am, when the time is 1 am, the timing unit 33 transmits a signal to the ozone treatment control unit 32, the ozone treatment control unit 32 controls the ozone treatment module 2 to remove the ozone, when the time is 5 am, the timing unit 33 transmits the signal to the ozone treatment control unit 32, and the ozone treatment control unit 32 controls the ozone treatment module 2 to stop the ozone removal treatment.
This remove haze and remove formaldehyde sterilization module 1 still includes current measuring device 16 and first alarm 17, wherein, current measuring device 16 connects collecting plate 14, current measuring device 16 is connected to first alarm 17, current measuring device 16 is used for detecting the electric current that flows through collecting plate 14, and judge the clean degree of collecting plate 14 through the electric current value that detects, when the electric current value that current measuring device 16 detected is less than predetermined threshold value, it is more to explain the deposit haze on collecting plate 14, need clear up, just send clean signal to first alarm 17, give the prompt signal that needs the clearance.
Referring to fig. 7, fig. 7 is a schematic structural view of another haze and formaldehyde removing sterilization module according to an embodiment of the present invention. According to the haze and formaldehyde removing sterilization module structure, the current measuring device and the alarm are arranged, so that the operation condition of the haze and formaldehyde removing sterilization module can be detected in real time, if too many haze particles are gathered on the collecting plate, the haze and formaldehyde removing effects can be influenced, and the release rate of ozone is influenced, so that when the current is detected to be small, more haze particles are gathered on the collecting plate, and when the current is lower than a critical value, the alarm gives a prompt, so that the collecting plate can be cleaned or replaced in time.
Referring to fig. 8, fig. 8 is a block diagram of another indoor air purification system according to an embodiment of the present invention. This indoor air purification system still includes detection module 4 and second alarm 5, and detection module 4 is arranged in detecting the ozone concentration in the air, and is harmful to the human body because of the ozone concentration in the air, so utilize ozone to accomplish after the disinfection and isolation handles that disinfects, need get rid of the ozone in the air. When the ozone treatment control unit 32 controls the ozone treatment module 2 to start to remove ozone in the air, the ozone concentration in the air is monitored in real time through the detection module 4, and data is fed back to the ozone control module 32, when the ozone treatment control unit 32 reaches the time for first closing of the ozone treatment module 2 set by the timing unit 33, if the ozone concentration detected by the detection module 4 is still higher than the set safety threshold, the ozone treatment control unit 32 continues to work to control the ozone treatment module 2 to work, and sets the second closing time of the ozone treatment module 2 through the timing unit 33, if the ozone concentration in the air is not controlled below the safety threshold when the ozone treatment control unit reaches the second closing time, the ozone treatment control unit 32 controls the second alarm 5 to alarm to remind personnel that the personnel can not enter the room temporarily until the ozone concentration is controlled below the safety threshold, and (5) alarm release. Wherein the safety threshold is the highest ozone concentration that does not cause harm to human body.
Preferably, the detection module 4 is an ozone concentration detection sensor.
Referring to fig. 9, fig. 9 is a block diagram of another indoor air purification system according to an embodiment of the present invention. On the basis of the above embodiment, the indoor air purification system further includes a power supply module 6.
This indoor air purification system still includes power module 6, power module 6 respectively with remove the haze and remove formaldehyde sterilization module 1 ozone processing module 2 control module 3 with detection module 4 electricity is connected for remove haze and remove formaldehyde sterilization module 1, ozone processing module 2, control module 3 and detection module 4 and provide the power.
Preferably, the model of the power supply module 6 is CS1W-CT 021.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A method of purifying indoor air, comprising:
the negative ions generated by the air purification system are used for removing haze and formaldehyde from the indoor air;
sterilizing and disinfecting the indoor air by using the ozone generated by the air purification system;
after sterilization and disinfection treatment, the air purification system is used for removing ozone in indoor air; the air purification system comprises a haze and formaldehyde removing sterilization module, an ozone treatment module, a control module and a detection module;
the haze and formaldehyde removing sterilization module comprises an anion generating unit and a collecting plate, when the distance between the anion generating unit and the collecting plate is adjusted to be a first set distance, the haze and formaldehyde removing sterilization module performs haze and formaldehyde removing purification treatment on haze and formaldehyde in the air by using generated anions, and when the distance between the anion generating unit and the collecting plate is adjusted to be a second set distance, the haze and formaldehyde removing sterilization module performs sterilization and disinfection treatment by using generated ozone, wherein the first set distance is 7-8cm, and the second set distance is 2-3 cm;
the ozone treatment module is used for removing ozone generated by the haze and formaldehyde removal sterilization module;
the control module comprises a haze-removing, formaldehyde-removing and sterilizing control unit, an ozone processing control unit and a timing unit, wherein the haze-removing, formaldehyde-removing and sterilizing control unit is electrically connected with the haze-removing, formaldehyde-removing and sterilizing module and is used for controlling the opening and closing of the haze-removing, formaldehyde-removing and sterilizing module;
the detection module is electrically connected with the ozone treatment control unit and is used for detecting the concentration of ozone in the air;
the haze and formaldehyde removing sterilization module comprises a lower protection plate (11), a negative ion generation unit (12), an electric push rod (13), a collection plate (14) and an upper protection plate (15); wherein,
the negative ion generating unit (12) is arranged on the upper surface of the lower protective plate (11) and is used for generating negative ions;
the first end of the electric push rod (13) is connected with the lower protective plate (11), and the second end of the electric push rod (13) penetrates through the collecting plate (14) to be connected with the upper protective plate (15) and is used for adjusting the distance between the negative ion generating unit (12) and the collecting plate (14);
the collecting plate (14) is arranged on the lower surface of the upper protective plate (15) and used for forming ion flow and ozone with the negative ion generating unit (12) and collecting haze particles;
the negative ion generating unit (12) comprises an emitting needle (121), a needle plate (122) and a voltage input device (123); wherein,
the emission needles (121) are uniformly arranged on the needle plate (122);
the needle plate (122) is arranged on the voltage input device (123);
wherein the voltage input device (123) comprises a voltage input circuit (1231) and a transformer (1232), the voltage input circuit (1231) being electrically connected to the transformer (1232);
when the distance between the emission needle (121) and the collection plate (14) is 7-8cm, electron current is generated between the emission needle (121) and the collection plate (14) to remove haze in the air, and when the distance between the emission needle (121) and the collection plate (14) is 2-3cm, ozone is generated between the emission needle (121) and the collection plate (14) to remove bacteria in the air;
the collecting plate (14) comprises a conductive net and formaldehyde removing paper, and the formaldehyde removing paper is positioned below the conductive net.
2. The air purification method according to claim 1, wherein the haze and formaldehyde removal purification treatment of the indoor air by using the negative ions generated by the air purification system comprises:
when the time is first opening time, the adjustment remove the haze and remove formaldehyde sterilization module's anion generating unit and collecting board to first settlement distance in order to produce the anion, utilize the anion removes the haze, removes formaldehyde purification treatment to the room air.
3. The air purification method according to claim 1, further comprising, after the haze and formaldehyde removal purification treatment of the indoor air by using the negative ions generated by the air purification system:
and when the time is the first closing time, the haze and formaldehyde removal purification treatment of the indoor air is stopped.
4. The air purification method of claim 1, wherein the sterilizing treatment of the indoor environment with ozone generated by the air purification system comprises:
when the time is the second opening time, the adjustment remove the negative ion generating unit and the collecting plate of haze removal formaldehyde sterilization module and set for the distance with the second in order to produce ozone, utilize ozone carries out the disinfection of disinfecting to the indoor environment.
5. The air purification method according to claim 1, further comprising, after the sterilizing treatment of the indoor environment with ozone generated by the air purification system:
and stopping the sterilization and disinfection treatment of the indoor air when the time is the second closing time.
6. The air purification method of claim 1, wherein removing ozone from the indoor air using the air purification system comprises:
and when the time is the third opening time, the ozone treatment module is utilized to remove the ozone in the indoor air.
7. The air purification method according to claim 6, further comprising, after removing ozone from the indoor air using the air purification system:
when the time is the third closing time, judging whether the ozone concentration is smaller than a first threshold value;
if not, continuously removing the ozone in the indoor air;
if so, the removal of ozone in the air is stopped.
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| CN111806192B (en) * | 2020-06-24 | 2022-03-22 | 吉利汽车研究院（宁波）有限公司 | Control method for automobile air purification function |
| CN111947248B (en) * | 2020-07-27 | 2021-12-10 | 珠海格力电器股份有限公司 | Sterilizer, method of controlling sterilizer, and storage medium |
| CN112082225B (en) * | 2020-09-21 | 2022-01-04 | 无锡菲兰爱尔空气质量技术有限公司 | Air purification system for medical laboratory |
| CN112856757B (en) * | 2021-01-29 | 2022-05-31 | 重庆海尔空调器有限公司 | Air conditioner and sterilization control method thereof |
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