CN111322691A - Air purification device and purification method in outdoor environment - Google Patents
Air purification device and purification method in outdoor environment Download PDFInfo
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- CN111322691A CN111322691A CN201910694575.0A CN201910694575A CN111322691A CN 111322691 A CN111322691 A CN 111322691A CN 201910694575 A CN201910694575 A CN 201910694575A CN 111322691 A CN111322691 A CN 111322691A
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- 238000004887 air purification Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000746 purification Methods 0.000 title abstract description 11
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003595 mist Substances 0.000 claims abstract description 14
- 239000003344 environmental pollutant Substances 0.000 claims description 9
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 239000003570 air Substances 0.000 claims 27
- 239000012080 ambient air Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 7
- 230000036541 health Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036996 cardiovascular health Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
Images
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
- 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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F24F8/117—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 wet 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
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
- F24F8/26—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media using ozone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
-
- 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
- F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an air purification device and a purification method under an outdoor environment, wherein the purification device comprises a shell, an air inlet and an atomizing nozzle are arranged on the shell, a large-flow fan is arranged in the shell, the air exhaust amount is 1-60 ten thousand cubic meters per hour, an ozone generator capable of being opened and closed is arranged between the fan and the air inlet, a heating part and a cooling part are sequentially arranged between the fan and the atomizing nozzle, the heating part can heat flowing air flow to 35-400 ℃, the cooling part can cool the air flow to below 40 ℃, an air filter screen is arranged at the air inlet, and a water mist spray nozzle is arranged at the atomizing nozzle. The device can purify ozone in outdoor air at a large flow rate without using a catalyst, and the device is arranged at multiple points outdoors, so that the urban air can be regulated and purified, and the human health can be guaranteed.
Description
Technical Field
The invention relates to air purification in an outdoor environment, in particular to an air purification device and an air purification method.
Background
In Jingjin Ji, Yangtze triangle, ozone has become a pollutant second to PM 2.5. Although the ozone in the stratosphere has the functions of absorbing ultraviolet rays and protecting the human body, the ozone on the near ground has certain damage to the respiratory tract and cardiovascular health of the human body and also has adverse effects on the protection of crops and classical cultural relics. Near-surface ozone is mainly a product of photochemical reaction between nitrogen oxide and organic volatile matters which are artificially discharged, so that the discharge of primary pollutants of nitrogen oxide and organic volatile matters is fundamentally reduced, but under the current discharge of nitrogen oxide and organic volatile matters, when the ozone content exceeds a limit value, measures are required to be manually taken to reduce ozone pollution. However, unlike indoor air purification, there are many devices and means, and outdoor air purification devices are currently directed mainly to PM2.5 pollutant particles, and less to ozone. The invention patent application CN108310969A discloses an outdoor air purification module and purification method, wherein nitrogen oxides, organic volatile matters and ozone are removed simultaneously by a catalyst, but the catalyst has a certain service life and higher cost, and the catalytic reaction requires a certain time, i.e. the treatment capacity per unit time is limited, so that the gas flow cannot be too fast, and only 500 plus 3000 cubic meters per hour of fan can be used, which cannot well meet the requirement of outdoor large-scale air purification. How to avoid using catalyst and increase the treatment capacity is the problem that needs to be solved by the outdoor air purification device and the purification method.
Disclosure of Invention
One of the purposes of the invention is to provide an air purification device under an outdoor environment, which can purify ozone in outdoor air at a large flow rate without using a catalyst, and can regulate and purify urban air by arranging the device at multiple points outdoors, thereby being beneficial to ensuring human health.
In order to achieve the purpose, the invention adopts the following technical scheme:
an outdoor environment air purification device comprises a shell, wherein an air inlet and an atomizing nozzle are formed in the shell, a large-flow fan is arranged in the shell, the air exhaust amount is 1-60 ten thousand cubic meters per hour, an openable ozone generator is arranged between the fan and the air inlet, a heating part and a cooling part are sequentially arranged between the fan and the atomizing nozzle, the heating part can heat flowing air flow to 35-400 ℃, the cooling part can cool the air flow to a temperature lower than 40 ℃, an air filter screen is arranged at the air inlet, and a water mist spray head is arranged at the atomizing nozzle.
Preferably, a resistance wire heating device or an infrared heating device is arranged in the heating part, and a water cooling or liquid nitrogen pipeline is arranged in the cooling part.
Preferably, the air filter screens are a PM20 filter screen, a PM10 filter screen, a PM5 filter screen and a PM2.5 filter screen from outside to inside, the selected materials are stainless steel woven materials and nano coatings, the air filter screens can be repeatedly used without causing secondary pollution, the area of the air filter screens is large enough, and the air intake sucked by the fan is guaranteed.
Preferably, the air inlet of the shell is cubic, the air filter screens are arranged on the front side door, the left side face and the right side face of the air inlet, the air inlet area of the cross section is large and equal to the requirement of meeting the air speed and the air volume, and the spray nozzles are arranged upwards.
In the device, air is sucked and filtered by the large-flow fan, then the air is heated to 365 ℃ by the heating part, ozone is decomposed into oxygen, and the oxygen is cooled to be about normal temperature and discharged into the air along with water mist, so that the content of PM 20-PM 2.5 in the air is reduced, the ozone is purified, and the air quality is improved. The device removes ozone in a heating mode, does not need to use a catalyst, is suitable for the purification operation of large-flow gas of dozens of ten thousand cubic meters per hour, and can generate good regulation and purification effects on urban air by arranging the device at multiple places.
The invention also provides an air purification method under the outdoor environment, which adopts the following means:
a method for purifying air in an outdoor environment, comprising the steps of:
(1) when the ozone content in the summer air exceeds the limit value, (a) (b) two steps are executed:
(a) the method comprises the steps that air is sucked into a plurality of places by using large-air-volume fans to form airflow, the air is filtered by a plurality of layers of filter screens, pollutants such as PM20, PM10, PM5 and PM2.5 are removed, and the air discharge volume of the large-air-volume fans is 1-60 ten thousand cubic meters per hour;
(b) heating the airflow to 360-400 ℃ to decompose ozone, then cooling to below 40 ℃, and spraying the airflow and water mist into the air from a spray nozzle;
(2) when the ozone content in the air in winter is lower than the limit value, performing (c) (d) two steps:
(c) the method comprises the steps of sucking air into a plurality of places by using a large-air-volume fan to form air flow, filtering the air by using a plurality of layers of filter screens to remove pollutants such as PM20, PM10, PM5 and PM2.5, and adding ozone into the air flow to 20-30 mg/m by using an ozone generator3The air exhaust volume of the large-air-volume fan is 1-60 ten thousand cubic meters per hour;
(d) and heating the airflow to 35-40 ℃ to enable the ozone to fully react with harmful substances such as bacteria in the air or enable the ozone to decompose the harmful substances, and spraying the ozone and the water mist into the air from the spray nozzle.
According to the method, outdoor air can be conveniently and rapidly purified in summer, and bacteria in the air can be killed by ozone in winter, so that good purification and regulation effects on the air are achieved. The outdoor air purification method can be well realized by utilizing the device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic sectional view of the structure of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples:
example 1: device structure and purification method
As shown in fig. 1 and 2, the air purification apparatus in an outdoor environment includes a housing 1, a cubic air inlet is reserved at one side of the housing 1, and a plurality of layers of filter screens 2 are respectively disposed at a front side 101, a left side 102 and a right side 103 of the air inlet for filtering particulate pollutants such as PM20, PM10, PM5 and PM 2.5. A large-flow fan 3 is arranged in the middle of the shell, and the flow of the fan is 1-60 ten thousand cubic meters per hour. The other side of the shell 1 is provided with a spray opening 4 upwards, and a water mist spray head 5 arranged in the spray opening can spray water mist. Heating portion 6 and cooling portion 7 are equipped with in proper order between fan 3 and nozzle 4, are equipped with resistance wire heating device (or infrared heating device) in the heating portion 6, can set up temperature sensor in the heating portion and detect the temperature, then control heating device through the temperature-controlled switch and whether heat, heating portion 6 can heat the air that flows through to 360~400 ℃, for example 365~370 ℃, make the ozone in the air current decompose into oxygen rapidly under this temperature, play the purification effect to the air. Then the gas flows through the cooling part 7 and is provided with a water cooling pipeline (or a liquid nitrogen pipeline), the cooling part 7 can control the cooling speed of the gas by controlling the water flow speed, the gas flow is cooled to be below 40 ℃, and then the gas flow is sprayed into the air together with water mist from a spray nozzle, so that ozone is removed, and the outdoor air temperature is not changed. The device disclosed by the invention can be used for removing ozone by heating, avoids using a catalyst, can be used for treating large flow, and is suitable for purifying urban air by arranging the device at multiple places.
An ozone generator 8 which can be opened and closed is arranged between the air inlet and the fan and is used for generating ozone. In winter, the ozone generator is turned on, and ozone is added into the airflow to 20-30 mg/m3And then heating the mixture to 35-40 ℃ in the heating part, closing the cooling part, and directly spraying the mixture and water mist into the air to sterilize the air.
Based on the device, the following method can be adopted to purify the outdoor air:
(1) when the ozone content in the air exceeds the limit value (such as 150 mg/m) in summer3) Then, two steps of (a) and (b) are executed:
(a) the method comprises the steps that air is sucked into a plurality of places by using large-air-volume fans to form airflow, the air is filtered by a plurality of layers of filter screens, pollutants such as PM20, PM10, PM5 and PM2.5 are removed, and the air discharge volume of the large-air-volume fans is 1-60 ten thousand cubic meters per hour;
(b) heating the airflow to 365-370 ℃ for 0.5-1 second to decompose ozone, then cooling to below 40 ℃, and spraying the airflow and water mist into the air from a spray nozzle;
(2) when the ozone content in the air in winter is lower than the limit value, performing (c) (d) two steps:
(c) air is sucked into a plurality of places by a large-air-volume fan to form an air flow, and the air is filtered by a plurality of layers of filter screens to remove PM20, PM10, PM5 and PM2.5, adding ozone into the airflow to 20-30 mg/m by using an ozone generator3The air exhaust volume of the large-air-volume fan is 1-60 ten thousand cubic meters per hour;
(d) and heating the air flow to 35-40 ℃, spraying the air flow and the water mist together from the spray opening to the air for purifying the air, and sterilizing by using ozone.
Example 2: effects of use
In a heavily-polluted static weather and in a natural environment within the range of 1 square kilometer, 10 sleeves of the equipment are arranged on the roof and the ground in a co-dispersed mode, purification and spraying are continuously carried out, and after 3 hours, particulate matters are effectively reduced, wherein the PM20 sedimentation rate is 20% -50%, the PM10 sedimentation rate is 15% -40%, the PM5 is equivalent to rough filtration of PM2.5, the sedimentation rate is 15% -50%, the PM2.5 sedimentation rate is 10% -35%, the ozone decomposition rate is 99.9%, the integral removal rate is 20% -40%, and the actual use effect has a direct relation with the wind speed, the wind direction and the humidity.
The above embodiments are merely illustrative of the inventive concept and implementation, and are not limiting, and technical solutions that are not substantially changed under the inventive concept are still within the scope of protection.
Claims (5)
1. The outdoor environment air purification device comprises a shell, wherein an air inlet and a spray nozzle are arranged on the shell, and the outdoor environment air purification device is characterized in that a large-flow fan is arranged in the shell, the air exhaust amount is 1-60 ten thousand cubic meters per hour, an openable ozone generator is arranged between the fan and the air inlet, a heating part and a cooling part are sequentially arranged between the fan and the spray nozzle, the heating part can heat flowing air flow to 35-400 ℃, the cooling part can cool the air flow to below 40 ℃, an air filter screen is arranged at the air inlet, and a water mist spray nozzle is arranged at the spray nozzle.
2. The air purification device under outdoor environment as claimed in claim 1, wherein a resistance wire heating device or an infrared heating device is provided in the heating part, and the cooling part is provided with a water cooling or liquid nitrogen pipeline.
3. The outdoor environment air purification apparatus of claim 1, wherein the air filter is selected from the group consisting of a PM20 filter, a PM10 filter, a PM5 filter, and a PM2.5 filter from the outside to the inside.
4. The outdoor ambient air cleaning apparatus according to claim 1, 2 or 3, wherein the air inlet of the housing is formed in a cubic shape, and the air filters are installed on front, left and right sides of the air inlet, and the spray outlets are formed upward.
5. A method for purifying air in an outdoor environment is characterized by comprising the following steps:
(1) when the ozone content in the summer air exceeds the limit value, (a) (b) two steps are executed:
(a) sucking air into a plurality of places by using a large-air-volume fan to form airflow, filtering the air by using a plurality of layers of filter screens to remove pollutants such as PM20, PM10, PM5, PM2.5 and the like, wherein the air discharge volume of the large-air-volume fan is 1-60 ten thousand cubic meters per hour;
(b) heating the airflow to 365-370 ℃ for 0.5-1 second to decompose ozone, then cooling to below 40 ℃, and spraying the airflow and water mist into the air from a spray nozzle;
(2) when the ozone content in the air in winter is lower than the limit value, performing (c) (d) two steps:
(c) the method comprises the steps of sucking air into a plurality of places by using a large-air-volume fan to form air flow, filtering the air by using a plurality of layers of filter screens to remove pollutants such as PM20, PM10, PM5 and PM2.5, and adding ozone into the air flow to 20-30 mg/m by using an ozone generator3The air exhaust volume of the large-air-volume fan is 1-60 ten thousand cubic meters per hour;
(d) and heating the air flow to 35-40 ℃, spraying the air flow and the water mist together from the spray opening to the air for purifying the air, and sterilizing by using ozone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910694575.0A CN111322691A (en) | 2019-07-30 | 2019-07-30 | Air purification device and purification method in outdoor environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910694575.0A CN111322691A (en) | 2019-07-30 | 2019-07-30 | Air purification device and purification method in outdoor environment |
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| CN111322691A true CN111322691A (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910694575.0A Pending CN111322691A (en) | 2019-07-30 | 2019-07-30 | Air purification device and purification method in outdoor environment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714991A (en) * | 2020-06-29 | 2020-09-29 | 康宁股份有限公司 | Method and apparatus for an urban air purification system |
| CN112797532A (en) * | 2021-04-15 | 2021-05-14 | 湖南京木德机械有限公司 | Indoor humidifier for emergency room |
| CN113819573A (en) * | 2021-10-27 | 2021-12-21 | 宁波奥克斯电气股份有限公司 | Method and device for controlling ozone in plasma sterilization mode and air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111714991A (en) * | 2020-06-29 | 2020-09-29 | 康宁股份有限公司 | Method and apparatus for an urban air purification system |
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| CN113819573A (en) * | 2021-10-27 | 2021-12-21 | 宁波奥克斯电气股份有限公司 | Method and device for controlling ozone in plasma sterilization mode and air conditioner |
| CN113819573B (en) * | 2021-10-27 | 2022-05-06 | 宁波奥克斯电气股份有限公司 | Method and device for controlling ozone in plasma sterilization mode and air conditioner |
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