CN108344094A - A kind of unpowered muting anti-haze ventilator - Google Patents
A kind of unpowered muting anti-haze ventilator Download PDFInfo
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- CN108344094A CN108344094A CN201810239942.3A CN201810239942A CN108344094A CN 108344094 A CN108344094 A CN 108344094A CN 201810239942 A CN201810239942 A CN 201810239942A CN 108344094 A CN108344094 A CN 108344094A
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- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims abstract description 26
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 21
- 150000001450 anions Chemical class 0.000 claims abstract description 13
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000007958 sleep Effects 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 241000256626 Pterygota <winged insects> Species 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000004060 metabolic process Effects 0.000 claims description 3
- 230000037323 metabolic rate Effects 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229960004424 carbon dioxide Drugs 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241000790917 Dioxys <bee> Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- 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
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The unpowered muting anti-haze ventilator of one kind proposed by the present invention, belongs to indoor air purification equipment technical field.Including shell, Temperature Humidity Sensor, gas concentration lwevel sensor, PM2.5 concentration sensors, display panel, warning lamp outside shell and data processing module, anion generation module at the top of shell inner flow passage, collecting plate positioned at shell inner flow passage bottom, valve blade is connected with by a pair of of the steering engine being fixed in housing sidewall at air outlet, plane where the air outlet is in 30 °~45 ° with vertical plane；Data processing module calculates the draught area at air port according to Ventilation principle and the indoor carbon dioxide concentration measured, which is converted into adjust the aperture of valve blade after the angle of steering engine rotation.The present invention can effectively avoid sense of discomfort caused by windowing air-flow blow-through human body, and the pollutants such as pm2.5 during efficiently removal is blown under non-resistance, no material consumption, low energy consumption, noiseless.
Description
Technical field
The invention belongs to indoor air purification equipment technical field, more particularly to a kind of unpowered muting anti-haze ventilation
Device.
Background technology
It is to be spent in building, therefore build health, comfortable indoor environment that, which there is 80% time in all one's life of people, promotes room
Interior air quality has great significance for health.Existing control indoor pollutant, promotes the side of indoor air quality
Method includes mainly ventilation (comprising force ventilation and gravity-flow ventilation), uses air purifier etc..
Serious (haze, sandstorm) in view of atmosphere pollution now, individual gravity-flow ventilation often introduces outdoor pollution
Object, and open a window ventilation when, external air flow is often blow-through human body, causes blowing feeling, and it is uncomfortable easily to induce human body, is in and sleeps in people
The problem is also more notable when dormancy resting state.Force ventilation is by installing filter device additional, though sky can be solved to a certain extent
Gas cleanliness factor problem, but the fan operation of filter device will produce huge energy consumption, and much noise will be generated, influence people
Normal work rest.Although and room air cleaning, resulting noise can be kept to remain using air purifier
Urgent problem, and most of air purifiers occupy comparable room space.
There are Yang Xudong, beam Weihui City, a kind of natural ventilator (patent No. CN201410020127.X) of poplar Shen inventions at present.
The equipment can realize gravity-flow ventilation and detect storage indoor air quality data, but can not make phase to indoor design condition automatically
The feedback answered needs artificial adjustment equipment.In addition, the equipment has no the removal measure for particulate matter (PM2.5, PM10 etc.),
Outdoor subtle pollutant may be introduced interior, unsuitable outside air pollutes more serious weather.
Invention content
The purpose of the invention is to overcome the shortcoming of prior art, propose that a kind of unpowered muting anti-haze is logical
Wind device.The present invention is realizing basic ventilation function, on the basis of meeting indoor air-changing demand, can be carried out at purification to air-supply
Reason removes Particulate Pollution, and can monitor room parameter, adjusts air output on this basis.
To achieve the goals above, the present invention adopts the following technical scheme that：
The unpowered muting anti-haze ventilator of one kind proposed by the present invention, including a shell, the shell be located outside and
Indoor place is respectively equipped with air inlet and air outlet, and runner is formed between the air inlet and air outlet in the shell；Air inlet
Place is equipped with grid, for preventing outdoor winged insect foreign matter from getting in；By being fixed on the housing sidewall at the air outlet
On a pair of of steering engine be connected with valve blade, rotated by servo driving valve blade, plane where the air outlet with it is vertical
Face is in 30 °~45 °, and case top is extended with the baffle vertical with plane where air outlet to interior, is fixed on the baffle
Display panel and warning lamp；It is fixed with acoustical cotton and multiple anion generation modules at the top of the runner, which fixes
There is acoustical cotton and equipped with the collecting plate that can be taken off；
The shell, which is located on indoor side wall, is additionally provided with data processing module, Temperature Humidity Sensor, gas concentration lwevel
Sensor and PM2.5 concentration sensors, data processing module are connect with each sensor, display panel, warning lamp and steering engine respectively；
The data processing module is used to be calculated according to Ventilation principle and the indoor carbon dioxide concentration measured logical at air port
The draught area is converted into adjusting the aperture of valve blade after the angle of steering engine rotation by wind area；The data processing module is used
In controlling the warning lamp and the switch of anion generation module, and the data processing module according to indoor PM2.5 concentration
It is additionally operable to the data real-time display for measuring each sensor on a display panel.
Further, the draught area at the air outlet is calculated according to following formula：
In formula, A is the draught area at this anti-haze ventilator air outlet；μ be opening flow coefficient, value be 0.4~
0.6；ρoutFor ambient outdoor air density；ρinFor indoor set environment atmospheric density；Δ P is hot pressing inside and outside the room, according to following
It is calculated by formula：
Δ P=gh (ρout-ρin) (2)
In formula, h is air inlet center and room oozes the height difference that wind integrates face height；G is acceleration of gravity；
Q is theoretical ventilation volume, according to CO2Concentration governing equa- tion determines：
In formula, CinFor indoor CO2Concentration；CoutFor outdoor CO2Concentration；V is room volume；For indoor carbon dioxide
Concentration changes with time rate；
EsFor indoor CO2Total burst size, Es=nVco2, wherein n is occupancy；CO is distributed for human body2Rate,
According to CO2The empirical formula of discharge rate and body metabolism rate relationship calculates：
In formula, M is human body metabolic rate, and routine work state takes 1met, sleep state to take 0.7met, 1met=58.2W/
m2；
ADIt accumulates for human skin surface, calculates as follows：
AD=0.202mb 0.425H0.725 (5)
In formula, mb:For the average weight of indoor occupant；H is the average height of indoor occupant；
Simultaneous formula (3)~(5) solve to obtain the theoretical ventilation volume Q, finally acquire required draught area size A.
The features of the present invention and advantageous effect：
The invention is that fresh air is continually sent into interior using Ventilation principle, improves indoor air quality.Wherein,
Caused by hot pressing is the temperature difference of indoor and outdoor air, due to the presence of temperature difference, density contrast inside and outside generating chamber so that along building
There is barometric gradient in the vertical direction of object metope, i.e., the present invention be using caused by the indoor and outdoor air temperature difference atmospheric density and into
The difference in height of air outlet is divulged information to realize.Meanwhile the anti-haze ventilator can effectively prevent windowing air-flow blow-through human body and cause
Sense of discomfort, for nighttime sleep air-supply have great meaning.Anion generation module in the anti-haze ventilator can be realized
The efficiently pollutants such as pm2.5 in removal air-supply, and non-resistance, no material consumption (without strainer is needed to change, can be used for a long time), power
Only 3W or so.In addition, using Ventilation, farthest reduce energy consumption, in addition to initial investment, does not have additional warp
Ji burden, easy to use, the quality of production is high.
Description of the drawings
Fig. 1 is a kind of anti-three-dimensional views of embodiment of haze ventilator of the present invention.
Fig. 2 is a kind of anti-front view of embodiment of haze ventilator of the present invention.
Fig. 3 is the A-A sectional views of Fig. 2.
Fig. 4 is a kind of anti-left view of embodiment of haze ventilator of the present invention.
Fig. 5 is control flow chart of the anti-haze ventilator of the present invention to indoor carbon dioxide concentration.
Fig. 6 is control flow chart of the anti-haze ventilator of the present invention to indoor PM2.5 concentration.
Fig. 7 is control flow chart of the anti-haze ventilator of the present invention to indoor temperature and humidity.
Specific implementation mode
To technical scheme of the present invention, detailed description are as follows with reference to the accompanying drawings and embodiments：
The anti-haze ventilator of the embodiment of the present invention, is fixed between window frame and windowsill, structure is as shown in Figure 1 to 4, contains
There are shell 1, shell to be located outside and be respectively equipped with air inlet and air outlet at indoor, shell 1 is interior in air inlet and air outlet 15
Between formed runner 14；Air inlet is equipped with grid 11, for preventing the foreign matters such as outdoor winged insect from getting in；At air outlet 15
It is connected with valve blade 10 by a pair of of the steering engine 9 being fixed on 1 side wall of shell, drives valve blade 10 to rotate by steering engine 9, goes out
15 place plane of air port is in 30 °~45 ° with vertical plane, and 1 top of shell is extended with vertical with 15 place plane of air outlet to interior
Baffle 16, the above-mentioned setting at air outlet can be achieved to handle the commutation for purifying wind, avoid blow-through human body；It is solid on baffle 16
Surely there are display panel 7 and warning lamp 8；14 top of runner is fixed with acoustical cotton 12 and multiple anion generation modules 2,14 bottom of runner
Portion is fixed with acoustical cotton 12 and equipped with the collecting plate 13 that can be taken off；Shell 1 is located at indoor side wall and is equipped with data processing module
3, Temperature Humidity Sensor 4, gas concentration lwevel sensor 5 and PM2.5 concentration sensors 6, data processing module respectively with each biography
Sensor, display panel 7 and warning lamp 8 connect；Data processing module 3 is used for according to Ventilation principle and the indoor dioxy measured
Change the draught area at concentration of carbon calculating air outlet 15, valve is adjusted after which is converted into the angle that steering engine 9 rotates
The aperture of blade 10；Data processing module 3 controls opening for warning lamp 8 and anion generation module 2 according to indoor PM2.5 concentration
It closes, meanwhile, the data real-time display that data processing module 3 measures each sensor is on display panel 7.
The specific implementation grade function of each building block of the present invention is respectively described below：
Runner 14 top of the configuration of anion generation module 2 in shell, handles air-supply, can avoid PM2.5 etc.
Outdoor particulate pollutant is got in.Small particulate matter can be condensed into larger particle under the action of anion, thus
14 bottom of runner settles down and is collected by collecting plate 13, has the function that depollution.The present embodiment configures two anions
Module 2 occurs, is commercial product, specific number is determined according to set ventilation quantity size and territory of use's air quality.Bear from
Son occurs module 2 and controls break-make by data processing module 3.Collecting plate 13 can be taken out by air outlet 15 and be cleaned, and be repeated
It uses.14 both sides of runner achieve the effect that noise reduction filled with acoustical cotton 12, effectively reduce outdoor noise to indoor influence.
Data processing module 3, Temperature Humidity Sensor 4, gas concentration lwevel sensor 5 and PM2.5 concentration sensors 6 are pacified
On 1 side wall of shell, display panel 7 and warning lamp 8 are fixed on 16 front of baffle, and a pair of of steering engine 9 is mounted on 15 institute of air outlet
Housing sidewall on.Display panel 7, warning lamp 8, steering engine 9 and each sensor respectively pass through circuit and data processing module 3
It is connected.Wherein：
Referring to Fig. 5~Fig. 7, gas concentration lwevel sensor 5 is used for transmission indoor real-time gas concentration lwevel data, and two
Carbonoxide is the marker of air pollution degree, is detected by the concentration to carbon dioxide, 3 control flaps of data processing module
Machine 9 makes corresponding feedback：When indoor carbon dioxide concentration exceeds 1000ppm, steering engine 9 rotates (original state blade in device
Direction is parallel with 14 direction of inner flow passage, rotatable 0~90 ° of range), valve blade 10 rotates therewith, and improves aperture, and increase is sent
Air quantity；When indoor carbon dioxide concentration is reduced to 600-1000ppm, valve blade 10 to keep current aperture constant；When interior two
When oxidation concentration of carbon reaches 600ppm or less, steering engine 9 rotates backward, and the aperture of valve blade 10 reduces, and avoids outdoor cold wind mistake
It mostly gets in, air outlet can be closed by influencing 90 ° of comfort blade rotation, blade shape and air outlet cross sectional shape phase
Together.PM2.5 sensors are used for transmission indoor real-time PM2.5 concentration datas, are detected by the concentration to PM2.5, data
Processing module 3 controls warning lamp 8 and makes corresponding feedback：When indoor PM2.5 concentration is more than 50 every cubic metre of micrograms, data processing
Module control warning lamp 8 will light, and remind user, while by the data processing module control unlatching pair of anion generation module 2
Air inlet is handled；When indoor PM2.5 concentration is less than 50 every cubic metre of micrograms, data processing module, which will control warning lamp 8, to be extinguished,
Anion generation module 2 is also accordingly turned off.Temperature Humidity Sensor can transmit indoor real time humiture data.In addition, dioxy
Change data measured by carbon sensor 5, PM2.5 sensors 6 and Temperature Humidity Sensor 4 all can real-time display on display panel 7,
It is referred to for user.Each device that the present embodiment uses is commercial product, and data processing module 3 is commercially available Arduino
Uno R3 development boards, the function which is completed can be achieved by conventional programming technique.
The draught area A of the anti-haze ventilator of the present invention is determined according to Ventilation flow empirical formula (1)：
In formula, A is the draught area at this anti-haze ventilator air outlet, unit cm3；
μ is opening flow coefficient, and the size of μ can rule of thumb be taken as 0.4~0.6；
ρoutFor ambient outdoor air density, unit kg/m3；
ρinFor indoor set environment atmospheric density, unit kg/m3；
Δ P is hot pressing inside and outside the room, and unit Pa is calculated by formula according to following：
Δ P=gh (ρout-ρin) (2)
In formula, h is air inlet center and room oozes the height difference that wind integrates face height, unit m；G is acceleration of gravity, is taken
Value is 9.8m/s2；
Q is theoretical ventilation volume, unit m3, according to CO2Concentration governing equa- tion (3) determines：
In formula, CinFor indoor CO2Concentration, unit ppm；
CoutFor outdoor CO2Concentration, unit ppm；
V is room volume, unit m3；
Indoor carbon dioxide concentration changes with time rate, unit ppm/s；
EsFor indoor CO2Total burst size, unit mL/s, Es=nVco2, wherein n is occupancy；It is distributed for human body
CO2Rate, according to CO2The empirical formula (4) of discharge rate and body metabolism rate relationship calculates：
In formula, M is human body metabolic rate, unit W/m2, routine work state takes 1met, sleep state to take 0.7met,
1met=58.2W/m2；
ADIt is accumulated for human skin surface, unit m2, human skin surface's product ADIt is calculated by formula (5)：
AD=0.202mb 0.425H0.725 (5)
In formula, mb:For the average weight of indoor occupant, unit kg；H is the average height of indoor occupant, unit m；
Simultaneous formula (3)~(5) solve to obtain theoretical ventilation volume Q, finally acquire required draught area size A.
Now with 60m3(20m2, 3m floor heights) room, four people of number, for sleep state, this anti-haze is determined using the above
The specific value of draught area at ventilator air outlet 15, involved parameters refers to following table：
To sum up, anti-haze ventilator of the invention mainly utilizes the principle of Ventilation to pass through room without the use of force ventilation
The hot pressing that interior temperature difference generates gets in for outdoor air and provides power, realizes ventilation.Specific draught area is by winter
Indoor and outdoor temperature, interior space size and personnel's number, activity determine.And it is then realized in natural open state at summer logical
Wind is taken a breath.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and non-limiting protection scope of the present invention, all in this hair
Bright is spiritual with any modification, equivalent substitution, improvement and etc. done within principle, in the protection scope of the present invention for including.
Claims (2)
1. a kind of unpowered muting anti-haze ventilator, which is characterized in that including a shell, which is located outside and interior
Place is respectively equipped with air inlet and air outlet, and runner is formed between the air inlet and air outlet in the shell；Air inlet is set
There is grid, for preventing outdoor winged insect foreign matter from getting in；By being fixed in the housing sidewall at the air outlet
A pair of of steering engine is connected with valve blade, is rotated by servo driving valve blade, and plane where the air outlet is in vertical plane
30 °~45 °, and case top is extended with the baffle vertical with plane where air outlet to interior, and display is fixed on the baffle
Panel and warning lamp；It is fixed with acoustical cotton and multiple anion generation modules at the top of the runner, which is fixed with suction
Sound cotton is simultaneously equipped with the collecting plate that can be taken off；
The shell, which is located on indoor side wall, is additionally provided with data processing module, Temperature Humidity Sensor, gas concentration lwevel sensing
Device and PM2.5 concentration sensors, data processing module are connect with each sensor, display panel, warning lamp and steering engine respectively；It is described
Data processing module is used to calculate the ventilating surface at air port according to Ventilation principle and the indoor carbon dioxide concentration measured
The draught area is converted into adjusting the aperture of valve blade after the angle of steering engine rotation by product；The data processing module is used for root
The warning lamp and the switch of anion generation module are controlled according to indoor PM2.5 concentration, and the data processing module is also used
On a display panel in the data real-time display for measuring each sensor.
2. anti-haze ventilator according to claim 1, which is characterized in that the draught area at the air outlet is according to as follows
Formula calculates：
In formula, A is the draught area at this anti-haze ventilator air outlet；μ is opening flow coefficient, and value is 0.4~0.6；ρout
For ambient outdoor air density；ρinFor indoor set environment atmospheric density；Δ P is hot pressing inside and outside the room, according to below by formula
It calculates：
Δ P=gh (ρout-ρin) (2)
In formula, h is air inlet center and room oozes the height difference that wind integrates face height；G is acceleration of gravity；
Q is theoretical ventilation volume, according to CO2Concentration governing equa- tion determines：
In formula, CinFor indoor CO2Concentration；CoutFor outdoor CO2Concentration；V is room volume；For indoor carbon dioxide concentration
Change with time rate；
EsFor indoor CO2Total burst size, Es=nVco2, wherein n is occupancy；CO is distributed for human body2Rate, according to
CO2The empirical formula of discharge rate and body metabolism rate relationship calculates：
In formula, M is human body metabolic rate, and routine work state takes 1met, sleep state to take 0.7met, 1met=58.2W/m2；
ADIt accumulates for human skin surface, calculates as follows：
AD=0.202mb 0.425H0.725 (5)
In formula, mb:For the average weight of indoor occupant；H is the average height of indoor occupant；
Simultaneous formula (3)~(5) solve to obtain the theoretical ventilation volume Q, finally acquire required draught area size A.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239942.3A CN108344094A (en) | 2018-03-22 | 2018-03-22 | A kind of unpowered muting anti-haze ventilator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239942.3A CN108344094A (en) | 2018-03-22 | 2018-03-22 | A kind of unpowered muting anti-haze ventilator |
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| Publication Number | Publication Date |
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| CN108344094A true CN108344094A (en) | 2018-07-31 |
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ID=62957638
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| CN201810239942.3A Pending CN108344094A (en) | 2018-03-22 | 2018-03-22 | A kind of unpowered muting anti-haze ventilator |
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| CN110207324A (en) * | 2019-05-30 | 2019-09-06 | 浙江越芬科技有限公司 | Dynamic aeration control method and system |
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| CN111097248A (en) * | 2019-12-28 | 2020-05-05 | 江苏兆年智能科技有限公司 | Waste gas treatment system and treatment process thereof |
| CN111097248B (en) * | 2019-12-28 | 2023-08-22 | 江苏兆年智能科技有限公司 | Exhaust gas treatment system and treatment process thereof |
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Application publication date: 20180731 |