CN110594891A - Air purification and deodorization method and electrolytic water washing type air purifier - Google Patents
Air purification and deodorization method and electrolytic water washing type air purifier Download PDFInfo
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- CN110594891A CN110594891A CN201910867695.6A CN201910867695A CN110594891A CN 110594891 A CN110594891 A CN 110594891A CN 201910867695 A CN201910867695 A CN 201910867695A CN 110594891 A CN110594891 A CN 110594891A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000005406 washing Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004332 deodorization Methods 0.000 title claims description 13
- 238000004887 air purification Methods 0.000 title abstract description 9
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 40
- 239000008399 tap water Substances 0.000 claims abstract description 33
- 235000020679 tap water Nutrition 0.000 claims abstract description 33
- 239000004480 active ingredient Substances 0.000 claims description 31
- 230000001954 sterilising effect Effects 0.000 claims description 24
- 230000000844 anti-bacterial effect Effects 0.000 claims description 21
- 238000004659 sterilization and disinfection Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 10
- 238000003487 electrochemical reaction Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000000855 fungicidal effect Effects 0.000 claims description 7
- 230000001877 deodorizing effect Effects 0.000 claims description 4
- 231100000331 toxic Toxicity 0.000 claims description 4
- 230000002588 toxic effect Effects 0.000 claims description 4
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(IV) oxide Inorganic materials O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 238000007791 dehumidification Methods 0.000 claims 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 abstract description 19
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 230000002829 reductive effect Effects 0.000 abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 5
- 229920000742 Cotton Polymers 0.000 abstract description 2
- 244000005700 microbiome Species 0.000 abstract description 2
- 239000000443 aerosol Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000007096 poisonous effect Effects 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 29
- 230000000694 effects Effects 0.000 description 7
- -1 hydrogen ions Chemical class 0.000 description 5
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 4
- 238000003905 indoor air pollution Methods 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010006458 Bronchitis chronic Diseases 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 208000002454 Nasopharyngeal Carcinoma Diseases 0.000 description 1
- 206010061306 Nasopharyngeal cancer Diseases 0.000 description 1
- 230000010718 Oxidation Activity Effects 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 208000007451 chronic bronchitis Diseases 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 201000011216 nasopharynx carcinoma Diseases 0.000 description 1
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- 210000002345 respiratory system Anatomy 0.000 description 1
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- 208000024891 symptom Diseases 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- 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
- F24F3/14—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 humidification; by dehumidification
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
- A61L2209/213—Use of electrochemically treated water, e.g. electrolysed water or water treated by electrical discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Epidemiology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an air purification and odor removal method and an electrolytic water washing type air purifier, wherein the purifier comprises an air inlet, a water discharge hole, a water inlet and an air outlet, polluted air enters a rotary drum filter element from the air inlet through an air guide pipe, and the rotary drum filter element is driven by a motor to rotate; tap water can enter the water tank of the purifier through the water inlet and the flow guide pipe, the bottom of the water tank is provided with an electrolysis unit, and hydroxyl radicals and hypochlorous acid are electrolyzed in the tap water under a specific electrolysis condition; air in the drum filter element continuously enters water through the filter cotton, and hydroxyl free radicals and hypochlorous acid in the water react with pollutants in the air; the air after washing passes through the grid plate, the evaporator and the condenser and is discharged from the air outlet. The invention can decompose the poisonous and harmful dust, aerosol and water-soluble gas in the air, reduce the peculiar smell and kill the microorganism in the air, and the cost of the filter element of the traditional air purifier is reduced by the water washing mode.
Description
Technical Field
The invention belongs to the technical field of air purification, and relates to an air purifier, in particular to an air purification and odor removal method and an electrolytic water washing type air purifier.
Background
After the industrial revolution, people were trapped in the house by science and technology. The labor operation is transferred from the field to office buildings and factories, the places for body-building sports are changed from the outdoor to gymnasiums and gymnasiums, even the transportation mainly depends on the closed spaces such as automobiles, subways and the like, and the data show that the time of the modern people staying indoors exceeds 90 percent.
The' 2019 white paper of indoor air pollution condition in China takes 3 months from 2018 to 3 months from 2019 as an analysis period, and carries out detailed analysis on the current indoor air pollution condition, pollutant sources, harm which can be caused, indoor air purification error zones and the like in cities in China. The report shows that the qualified air quality is less than 5% in one year and less than half in three years. The indoor air pollution degree is reduced along with the increase of the decoration completion year, wherein the house failure rate is 95% within 1 year of decoration, the house failure rate is 65% within 2 years of decoration, and the house failure rate is 55% within 3 years of decoration. The main harmful substances of indoor air pollution comprise formaldehyde, TVOC (total volatile organic compounds) and bacteria, and in 6482 detection samples, the 2 gas standard exceeding points account for 4796 in total and account for 97.3 percent of the total unqualified points. In the polluted air, the long-term life can cause the respiratory function to be reduced, the respiratory tract symptoms to be aggravated, some diseases can also cause diseases such as chronic bronchitis, asthma, emphysema and the like, and the prevalence rate of lung cancer and nasopharyngeal carcinoma can be increased.
The principle of the traditional air purifier is similar to that of activated carbon, partial pollutants are adsorbed by a physical adsorption method, and the traditional air purifier only has a certain effect on formaldehyde dissociating in the air. After HEPA filter screen adsorbs the saturation, air purifier effect will obviously descend, does not play any effect even at last.
Disclosure of Invention
In order to solve the problems of the prior art, an object of the present invention is to provide an air purification and deodorization method and an electrolytic water washing type air purifier, which can remove formaldehyde, odor, bacteria, etc. in the air without releasing harmful substances such as ozone, etc. into the air, and can rapidly decompose pollutants dissolved in water by OH and hypochlorous acid (HClO) without frequently replacing a filter element in a water washing manner.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for purifying and deodorizing air comprises electrolyzing tap water to generate bactericidal active ingredient, and introducing air to be purified and deodorized into electrolyzed tap water for sterilization and deodorization;
concentration C of the fungicidal active ingredient0The relation formula with the air volume V to be purified and deodorized needs to satisfy:
wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor, and the value range is 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, F is the Faraday constant in units of C/mol, C0The concentration of the bactericidal active ingredient is mg/L.
The invention also provides an electrolytic water washing type air purifier which comprises a filter element, wherein the air purifier generates a bactericidal active ingredient by electrolyzing tap water by using the method, and air to be purified entering the air purifier is sterilized and deodorized by the bactericidal active ingredient and the filter element;
concentration C of the fungicidal active ingredient0The relation with the volume V of the air to be purified is fullFoot:
wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor, and the value range is 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, F is the Faraday constant in units of C/mol, C0The concentration of the bactericidal active ingredient is mg/L.
Furthermore, the filter element adopts a rotary drum type filter element (8), part of the filter element is always immersed in electrolyzed tap water in the rotation process of the filter element, air to be purified enters the rotary drum type filter element (8), the electrolyzed tap water in the filter element is released for sterilization and deodorization, and after sterilization and deodorization, toxic and harmful substances in the air are adsorbed by the filter element and then discharged.
Further, the electrolytic electrode comprises a diamond film or two pieces of Ti-based Pt-RuO2And an electrode.
Further, the electrolytic water washing type air purifier comprises a shell (5), a water storage device (11) is arranged at the bottom of the shell (5), an electrolysis unit (12) is arranged at the bottom of the water storage device (11) and used for electrolyzing tap water to generate bactericidal active ingredients, a rotary drum type filter element (8) is fixed in the shell (5), and part of the filter element is always immersed in the electrolyzed tap water in the rotation process of the filter element; air to be purified enters the drum type filter element (8) through the air guide pipe (7) and is released in electrolyzed tap water in the filter element for sterilization and deodorization; concentration C of the required fungicidal active ingredient0The relation with the volume V of the space to be purified needs to satisfy:
wherein the content of the first and second substances,a is the area of an electrode and the unit is square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor, and the value range is 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, and the value range is 6.0-10.0; f is the Faraday constant in units of C/mol, C0The concentration of the bactericidal active ingredient is mg/L.
Furthermore, the drum type filter element (8) can periodically perform reverse rotation to realize self-cleaning.
Furthermore, the filter element adsorbs toxic and harmful substances in the air and then is exhausted after humidity control by the intelligent humidity control unit.
Furthermore, the intelligent humidity control unit comprises a processor (16), a humidity detection sensor, a compressor, an evaporator (14) and a condenser (15), the condenser (15) and the evaporator (14) are controlled by the compressor, the humidity detection sensor collects an air humidity value and sends the humidity value to the processor (16), and the processor (16) compares the received humidity value with a standard humidity value and then changes the working state of the compressor to reduce humidity or humidify.
Furthermore, the intelligent humidity control unit is located on the upper surface of the grid plate (13), the grid plate (13) is fixed on the upper portion of the shell (5), and the lower surface of the grid plate (13) is provided with the filtering membrane (9).
Further, an exhaust fan (17) is arranged in the middle of the shell (5), an air outlet (4) is formed in the top of the shell (5), an air inlet (1) is formed in the upper portion of one side of the shell (5), a filter screen (6) is arranged at the position of the air inlet (1), a water inlet (3) is formed in the upper portion of the other side of the shell (5), the flow guide pipe (10) is communicated with the water inlet (3) and is communicated with the bottom of the water storage device (11), a water outlet is formed in the bottom of the water storage device (11), the water drain pipe (2) is communicated with the water outlet.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the air purification and odor removal method, tap water is electrolyzed to generate sterilization active ingredients, air to be purified and odor removed is introduced into the electrolyzed tap water to be sterilized and odor removed, and a good sterilization effect is achieved while odor and formaldehyde are adsorbed; meanwhile, tap water is adopted for electrolysis, ozone is not generated in the electrolysis process, and hydroxyl free radicals (. OH) and hypochlorous acid (HClO) are rapidly decomposed after the action, so that no harm is generated.
2) According to the air purifier, the design mode of the rotary drum type filter element can intercept macromolecular harmful pollutants in the air, meanwhile, the rotary drum type filter element can be periodically reversed, the automatic cleaning function of the filter element is realized, the filter element does not need to be frequently replaced, and the use cost is reduced.
3) The air purifier disclosed by the invention has the beneficial effects that the filter membrane at the air inlet is used for filtering, the electrolytic sterilization and odor removal, the filter element is used for continuously sterilizing and cleaning, the filter element is used for filtering, and the grid plate filter membrane is used for treating, so that the synergistic effects of the five components can jointly ensure the treatment effect of the air purifier, the formaldehyde removal rate can reach 80% within 1 hour after the air purifier is started, and the sterilization rate can reach more than 90%.
Drawings
FIG. 1 is a schematic view of an electrolytic water washing type air cleaner of the present invention.
The reference numbers in the figures are:
1. the water storage device comprises an air inlet 2, a water discharge pipe 3, a water inlet 4, an air outlet 5, a shell 6, a filter screen 7, an air guide pipe 8, a rotary drum type filter element 9, a filter membrane 10, a flow guide pipe 11, a water storage device 12, an electrolysis unit 13, a grid plate 14, an evaporator 15, a condenser 16, a processor 17 and an exhaust fan.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The bactericidal active ingredients of the invention are mainly hydroxyl free radicals (. OH) and hypochlorous acid (HClO).
Currently, chemical decomposition is an effective means of removing pollutants from air. Research shows that water molecules in tap water can ionize hydrogen ions (H) under natural state+) And hydroxide ion (OH)-) OH under electrolytic conditions-The ion loses an electron to form a hydroxyl radical (. OH), which is a species ofThe high-efficiency bactericide can kill bacteria, fungi and viruses. OH has a standard oxidation potential of 1.77V, which is second only to fluorine. Due to its strong oxidizing property, OH can oxidize common organic or reducing inorganic substances to decompose them. Meanwhile, microorganisms can be killed quickly. OH has a lifetime of only 10 in water- 9S, quickly disappears after reaction, has no residue, and has the following reaction formula:
·OH-e-→OH-
meanwhile, chloride ions (Cl) in tap water-) Converted to hypochlorous acid (HClO) during electrolysis, the reaction formula is as follows:
2Cl--2e-→Cl2
Cl2+H2O→HClO+H++Cl-
the odor in the air is relatively complex, among which NH3And H2S is two common odorous gases, hydroxyl radical (. OH) and hypochlorous acid (HClO) generated in the electrolysis process can decompose ammonia (NH)3) And hydrogen sulfide (H)2S), the reaction equation is as follows:
2NH3+·OH→N2+H2O+2H+
H2S+·OH→S+H2O+H+
NH3+3HClO→N2+3H++3Cl-+3H2O
H2S+4HClO→SO4 2-+H2O+4Cl-
formaldehyde is one of indoor air pollutants, OH and HClO enable the rapid oxidative decomposition of water-soluble formaldehyde, the reaction equation of which is as follows:
HCHO+·OH→CO2+H2O+H+
HCHO+2HClO→CO2+H2O+2H++2Cl-
meanwhile, the hydroxyl free radical reacts with chlorine in tap water to generate hypochlorous acid, and the electrolyzed tap water generates bactericidal active ingredients, wherein the bactericidal active ingredients mainly comprise the hydroxyl free radical and the hypochlorous acid.
The purifier of the invention has the concentration C of the required bactericidal active ingredient0The relation with the volume V of the space to be purified needs to satisfy:
wherein A is the electrode area, namely the total area of the electrodes used by the electrolysis unit, and the unit is square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；As the electrolysis efficiency (ratio of actual product amount to theoretical product amount in the electrolysis process); keIs a proportional factor (also called electrochemical equivalent) and has the value range of 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, F is the Faraday constant in units of C/mol, C0The concentration (mg/L) of the bactericidal active ingredients is quickly detected by special test paper, and the more accurate detection is carried out by a chemical method.
Example 1:
the embodiment provides an air purification and odor removal method, which comprises the steps of electrolyzing tap water to generate a sterilization active ingredient, and introducing air to be purified and odor removed into the electrolyzed tap water to perform sterilization and odor removal;
concentration C of the required fungicidal active ingredient0The relation with the volume V of the space to be purified needs to satisfy:
wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a scaling factor; i is a current value with the unit of A;t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, F is the Faraday constant in units of C/mol, C0The concentration of the bactericidal active ingredient is (mg/L).
Example 2:
the invention discloses an electrolytic water washing type air purifier, which comprises an air inlet, a water outlet, a water inlet and an air outlet, wherein polluted air enters a rotary drum filter element from the air inlet through an air duct, and the rotary drum filter element is driven by a motor to rotate; tap water can enter the purifier water storage device through the water inlet and the flow guide pipe, the bottom of the water tank is provided with an electrolysis unit, and the tap water is electrolyzed to generate hydroxyl free radicals (OH) and hypochlorous acid under specific electrolysis conditions; air in the drum filter element continuously enters water through the filter cotton, and hydroxyl free radicals (. OH) and hypochlorous acid in the water react with pollutants in the air; the air after washing is filtered by the grid plate and the humidity of the air is increased or decreased by the dehumidifying device, and then is discharged from the air outlet; the top of the shell is provided with a device control unit for controlling humidity and then discharging.
Furthermore, the rotary drum type filter element is always partially immersed in the electrolyzed tap water, so that the sterilization and cleaning of the filter element can be always ensured in the continuous rotation process of the filter element, the sterilization and filtration of air are indirectly ensured, meanwhile, the reverse rotation can be regularly carried out and the cleaning can be carried out, the water in the water storage device after the cleaning can be timely discharged, and the cost for replacing the filter element is reduced. Tap water is firstly introduced into the filter element and is released in the electrolyzed tap water in the filter element to carry out sterilization and deodorization, and then the filter element is used for secondary filtration treatment.
Furthermore, a filtering membrane is arranged below the grid plate, so that air can be further filtered, the electrolysis sterilization and deodorization can be realized, the filter element can be continuously sterilized and cleaned, the filter element can be filtered, and the grid plate is subjected to filtering membrane treatment, so that the synergistic effects of the four components can be jointly guaranteed.
Further, the electrolytic unit at the bottom of the air purifier of the embodiment is composed of two pieces of Ti-based Pt-RuO2The electrode composition and the electrolytic process mainly generate hydroxyl free radical (. OH) with oxidation activity and hypochlorous acid.
Further, the water level of the water storage device of the purifier satisfies the following formula
Wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor (the value range is 0.32172-0.34487 mg/C); i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction (0.7-2.0 x 10)-3) F is the Faraday constant in units of C/mol, C0Is the concentration (mg/L) of the bactericidal active ingredient, and V is the volume of the space to be purified.
Furthermore, humidity intelligent control unit of humidity intelligent control device unit is located the grid plate upper surface, and the grid plate is fixed on casing upper portion, including treater, humidity detection sensor, compressor, evaporimeter and condenser, compressor control condenser pipe and evaporating pipe, humidity detection sensor gathers the air humidity value and sends the humidity value for the treater, and the treater carries out the comparison back with standard humidity value with received humidity value, changes compressor operating condition and dehumidifies or humidify.
Furthermore, an exhaust fan is arranged in the middle of the shell to assist in air diversion and exhaust.
More specifically, the top of the shell is provided with an air outlet, the upper part of one side of the shell is provided with an air inlet, the upper part of the other side of the shell is provided with a water inlet, the flow guide pipe is communicated with the water inlet and is communicated with the bottom of the water storage device, the bottom of the water storage device is provided with a drain hole, the drain pipe is communicated with the drain hole, and water is drained out.
Effect verification:
the purifier is used for treating indoor air decorated in a certain district in the Shanghai for three months, and the quality of the air to be treated at the air inlet is characterized as follows: the formaldehyde value is 0.73mg/m3，NH3And H2The total concentration of S is 4.3mg/m3Total number of coloniesIs 1700cfu/m3。
Introducing the air into tap water which is continuously electrolyzed, wherein the introduction amount of the air, electrolysis parameters and the like are carried out according to a formula, and the values of letters in the formula are as follows: 0.00805 square meterS＝12m-1，Is 0.43, Ke0.322, I2.5A, electrolysis time t 90min, n 1.93 x 10-3F is 96485C/mol, C017mg/L and V15 m 3.
After detection, the quality of the air at the air outlet after treatment is as follows: the formaldehyde value is 0.11mg/m3，NH3And H2The total concentration of S is 1.4mg/m3The total number of colonies was 120cfu/m3。
The above examples show that the scheme of the invention is to formaldehyde and NH3And H2The removal rates of S and the total number of colonies can reach 84.9%, 67.4% and 92.9% respectively.
Comparative examples 1 to 3:
to illustrate the synergistic effect of the five purifiers of the present invention, the following tests were performed:
comparative example 1: the treatment means of sterilization and deodorization does not comprise an electrolysis unit, and only three means of air inlet filtration, drum filter element filtration and grid filtration are adopted in sequence, and detection results show that the formaldehyde value can be reduced by pure physical adsorption, but the total number of bacterial colonies in the air is almost unchanged, which shows that the sterilization and disinfection of the air mainly depends on the electrolysis unit.
Comparative example 2: disinfect in the treatment means who removes the flavor, adopt air intake department filtration membrane filtration in proper order, the electrolysis is disinfected and is removed flavor, the filter core is filtered, four treatment means combinations of net board filtration membrane processing, the filter core does not submerge in the tap water after the electrolysis, does not include filter core self and disinfects cleanly, and the result shows, formaldehyde and TVOC treatment effect are less than the result value of embodiment 1, and this is probably relevant with the untimely secondary pollution who brings of filter core clearance.
Comparative example 3: in the sterilizing and deodorizing treatment means, five treatment means of filtering by a filtering membrane at an air inlet, electrolyzing, sterilizing and deodorizing, sterilizing and cleaning a filter element, filtering by the filter element and treating by a grid plate filtering membrane are combined in sequence, but the electrolysis condition is different from the relational expression in the formula, and the result shows that the killing value of the total number of bacteria in the air is far lower than that of the embodiment 1, which probably has a relationship with the change of the electrolysis condition to greatly reduce the sterilizing active ingredients.
The foregoing detailed description and examples have been given for clarity of understanding only. It will be apparent that various additions, modifications and substitutions are possible without departing from the spirit and scope of the invention as defined in the accompanying claims. It will be appreciated by those skilled in the art that the present invention may be modified in form, structure, arrangement, proportions, materials, elements, components and otherwise, used in the practice of the invention, which are particularly adapted to specific environments and operative requirements without departing from the principles of the present invention. Accordingly, the presently disclosed embodiments are meant to be illustrative only and not limiting, the scope of the invention being defined by the appended claims and their legal equivalents, rather than by the foregoing description.
Claims (10)
1. A method for purifying and deodorizing air is characterized in that tap water is electrolyzed to generate sterilization active ingredients, and air to be purified and deodorized is introduced into the electrolyzed tap water to be sterilized and deodorized;
concentration C of the fungicidal active ingredient0The relation formula with the air volume V to be purified and deodorized needs to satisfy:
wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor, and the value range is 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, F is the Faraday constant inC/mol，C0The concentration of the bactericidal active ingredient is mg/L.
2. An electrolytic water washing type air purifier, which comprises a filter element and is characterized in that the air purifier generates a bactericidal active ingredient by electrolyzing tap water by using the method of claim 1, and air to be purified entering the air purifier is sterilized and deodorized by the bactericidal active ingredient and the filter element;
concentration C of the fungicidal active ingredient0The relationship with the volume V of the air to be purified is satisfied:
wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor, and the value range is 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, F is the Faraday constant in units of C/mol, C0The concentration of the bactericidal active ingredient is mg/L.
3. The electrolytic water washing type air purifier as claimed in claim 2, wherein the filter element is a drum type filter element (8), and a part of the filter element is always immersed in the electrolyzed tap water during the rotation of the filter element, the air to be purified enters the drum type filter element (8), and is released in the electrolyzed tap water in the filter element for sterilization and deodorization, and after sterilization and deodorization, toxic and harmful substances in the air are adsorbed by the filter element and then discharged.
4. The electrolytic water washing type air purifier of claim 2 or 3, wherein the electrolytic electrode comprises a diamond film or two pieces of ti-based Pt-RuO2Electrode for electrochemical cell。
5. The electrolytic water washing type air purifier according to claim 3, wherein the electrolytic water washing type air purifier comprises a housing (5), a water storage device (11) is arranged at the bottom of the housing (5), an electrolysis unit (12) is arranged at the bottom of the water storage device (11) and is used for electrolyzing tap water to generate bactericidal active ingredients, a drum type filter element (8) is fixed in the housing (5) and part of the filter element is always immersed in the electrolyzed tap water in the rotation process of the filter element; air to be purified enters the drum type filter element (8) through the air guide pipe (7) and is released in electrolyzed tap water in the filter element for sterilization and deodorization;
concentration C of the required fungicidal active ingredient0The relation with the volume V of the space to be purified needs to satisfy:
wherein, A is the area of the electrode, and the unit is a square meter; a. theSIs the specific surface area of the reaction electrode and has a unit of m-1；For the efficiency of electrolysis, KeIs a proportional factor, and the value range is 0.32172-0.34487 mg/C; i is a current value with the unit of A; t is electrolysis time in units of s; n is the electron coefficient of electrochemical reaction, and the value range is 6.0-10.0; f is the Faraday constant in units of C/mol, C0The concentration of the bactericidal active ingredient is mg/L.
6. An electrolytic water washing type air cleaner as set forth in claim 3 or 5, wherein said drum type filter element (8) is periodically reversely rotated to realize self-cleaning.
7. The electrolytic water washing type air purifier as claimed in claim 3, wherein the filter element adsorbs toxic and harmful substances in the air, and then discharges the air after humidity control by the intelligent humidity control unit.
8. The electrolytic water washing type air purifier as claimed in claim 7, wherein the intelligent humidity control unit comprises a processor (16), a humidity detection sensor, a compressor, an evaporator (14) and a condenser (15), the compressor controls the condenser (15) and the evaporator (14), the humidity detection sensor collects an air humidity value and sends the humidity value to the processor (16), and the processor (16) compares the received humidity value with a standard humidity value and changes the working state of the compressor to perform dehumidification or humidification.
9. The electrolytic rinsing type air purifier as claimed in claim 7 or 8, wherein the intelligent humidity control unit is located on the upper surface of the mesh plate (13), the mesh plate (13) is fixed on the upper part of the housing (5), and the filtering membrane (9) is arranged on the lower surface of the mesh plate (13).
10. The electrolytic water washing type air purifier as claimed in claim 3 or 5, wherein an exhaust fan (17) is arranged in the middle of the housing (5), an air outlet (4) is arranged at the top of the housing (5), an air inlet (1) is arranged at the upper part of one side of the housing (5), a filter screen (6) is arranged at the position of the air inlet (1), a water inlet (3) is arranged at the upper part of the other side of the housing (5), the guide pipe (10) is communicated with the water inlet (3) and is communicated with the bottom of the water storage device (11), a water outlet is arranged at the bottom of the water storage device (11), and the water drain pipe (2) is communicated with the water outlet and.
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