CN206420103U - A kind of city New-air purifying system - Google Patents
A kind of city New-air purifying system Download PDFInfo
- Publication number
- CN206420103U CN206420103U CN201720080445.4U CN201720080445U CN206420103U CN 206420103 U CN206420103 U CN 206420103U CN 201720080445 U CN201720080445 U CN 201720080445U CN 206420103 U CN206420103 U CN 206420103U
- Authority
- CN
- China
- Prior art keywords
- air
- discharge pipe
- cavity
- airduct
- purifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The utility model is related to a kind of city New-air purifying system, including：At least one cavity on skin is fixed on, the cavity is provided with the through hole with atmosphere；Connected with the cavity upper end or through the airduct of cavity, the airduct is at least one, and the air outlet of the airduct extends upwardly to the top close to building；Purifier, the air inlet of the purifier is connected by attachment means with the air outlet of the airduct, the air outlet of the purifier and the air inlet of power set are connected, and the air outlet of the power set is connected with discharge pipe, and the discharge pipe is located at top of building；The energy source device of electric energy is provided, the energy source device is electrically connected with purifier and power set.The utility model is power using photovoltaic solar, the upward pump drainage of air of city low-to-medium altitude, after purification, and control flows to unified direction, makes air in the case of calm or in the area for difference of being divulged information due to meteorological or geographical position, can also form flowing.
Description
Technical field
The utility model belongs to the technical field of urban air-purification equipment, and in particular to a kind of city fresh air purifying system
System.
Background technology
The waste gas produced due to the pernicious gas discharged in industrial pollutants, life cooking stove and heating and communications and transportation is not
It is disconnected to be discharged into air, cause air pollution increasingly severe.Since in November, 2016, Beijing-tianjin-hebei Region there occurs 7 skies altogether
Gas heavily contaminated.And due to meteorological condition or the difference in geographical position, cause that urban air flow property is poor, Atmospheric Diffusion is dilute
Release ability weak, therefore pollutant concentration is higher, have a strong impact on the life of people and healthy.
The method for using " anti-" the national improvement to air pollution at present more, such as：Improve energy resource structure, by using nothing
Pollution power sources (such as solar energy, wind energy, hydroelectric generation) and the low stain energy (such as natural gas), are pre-processed to dyestuff (as burnt
Desulfurization is first carried out before coal), improve combustion technology etc. and reduce blowdown flow rate；Industrial enterprise's activity is reduced in the area of ventilation condition difference；
Make rational planning for plant site selection, chimney design, should not concentrations discharge air.For the air pollution having resulted in, especially lead to
How the regional air pollution of wind condition difference, carry out the problem of improvement is one extremely urgent.
Utility model content
In order to solve the above problems, the utility model provides a kind of city New-air purifying system, and the system utilizes photovoltaic
Solar energy is power, the upward pump drainage of air of city low-to-medium altitude, and controls to flow to unified direction, makes air in calm situation
Area lower or in difference of being divulged information due to meteorological or geographical position, can also form flowing；Meanwhile, the system includes purification
Device, by purifier by after the pollutant filtering in air, clean air is discharged by discharge pipe.
The technical solution adopted in the utility model is as follows：
A kind of city New-air purifying system, including：
It is fixed on above and below at least one cavity on skin, the cavity and arranges, the cavity is provided with and air
The through hole of connection；
Connected with the cavity upper end or through the airduct of cavity, the airduct is at least one, the air-out of the airduct
Mouth extends upwardly to the top close to building；
Purifier for purifying air, the air inlet of the purifier is gone out by attachment means and the airduct
Air port is connected, and the air outlet of the purifier and the air inlet of power set are connected, the air outlet connection of the power set
There is discharge pipe, the discharge pipe is located at top of building；
The energy source device of electric energy is provided, the energy source device is electrically connected with purifier and power set.
The city New-air purifying system that the utility model is provided passes through power set handle by the use of photovoltaic solar as the energy
The upward pump drainage of foul atmosphere in city low latitude, after being filtered by purifier, building overhead is discharged to by clean air.Work as institute
When the air-out direction for stating discharge pipe is set to a direction, fresh air will be formed in city overhead.The New-air purifying system is not
Row arrives high-altitude after the disconnected contaminated air cleaning by city low latitude, high-altitude and low latitude is produced pressure differential, the air in high-altitude
It is continuously replenished under pressure differential effect to low latitude, forms convection current, improve urban air-quality.
Further, the cavity sets at least two, is evenly arranged up and down, the distance between neighboring chambers are according to building
Thing height, big freedom in minor affairs are set.
Beneficial effect using above-mentioned further scheme is：Because the through hole of extraneous air from the cavity enters cavity,
Enter Gas inlet tube from cavity again, when depth of building is especially high, building is too big, cavity number is not enough to pump drainage very little, and each is high
The air of degree, therefore multiple cavities can be set according to depth of building, size.The cavity can for cuboid, square or
Cylinder, preferably cuboid；The cavity material can be metal material or plastic material.
Further, the airduct is corresponded with cavity and set, the air inlet of each airduct and corresponding lower floor's cavity
Upper end connection, the air outlet of each airduct passes through one or more upper strata cavitys, and extends upwardly to the air intake of purifier
At mouthful.
Further, the attachment means are connecting tube, and one end of the connecting tube is connected with the air outlet of multiple airducts,
The other end is connected with the air inlet of purifier.
Beneficial effect using above-mentioned further scheme is：Due to being provided with multiple cavities, therefore corresponding setting is more
Individual airduct, the air inlet of each airduct is connected with the upper end of a cavity, and air outlet is passed through after other cavitys, extends to purification dress
The air inlet put, all airduct air outlets are pooled at one, are connected by the air inlet of connecting tube and purifier.
Further, the energy source device is solar panels, and the solar panels are arranged at the front of cavity, the through hole
Provided with multiple, the both sides of cavity are uniformly distributed in.
Beneficial effect using above-mentioned further scheme is：Solar panels are used as energy source device electricity is provided for system
Can, environmental protection, the energy can be saved and do not limited by geographical position, it is safe and reliable, it is pollution-free.
Further, the power set are arranged on building, and the power set are blower fan, the wind wheel of the blower fan
For tubular wine wheel, centrifugal wind wheel or axial-flow windwheel.
Further, the air outlet of the blower fan and one end of discharge pipe are connected by rotating shaft, the discharge pipe other end
Air outlet can around the shaft in the horizontal plane 360 ° freely rotate；The rotating shaft is hollow structure, for by fan outlet and
Discharge pipe is connected.
Beneficial effect using above-mentioned further scheme is：The discharge pipe is connected with blower fan by the rotating shaft of hollow structure
Connect, can not only discharge pipe is connected with blower fan, and the air outlet of discharge pipe is freely revolved in the range of 360 ° of horizontal plane
Turn.In the case of having wind, discharge pipe can rotate consistent with wind direction to air-out direction；In the case of calm, by setting air-out
Pre- air-out direction is managed, when discharge pipe air-out direction and pre- air-out direction are inconsistent, controls discharge pipe to rotate by control device
To pre- air-out direction, make the discharge pipe in whole city towards same direction, form city fresh air.
Further, the first control device of control discharge pipe air-out direction is included, the first control device includes
Wind direction rudder, the wind direction rudder includes the rudder plate on top and the rudderpost of bottom, and the rudderpost upper end is fixedly connected with rudder plate, and lower end is erected
It is direct-connected to be connected in the rotating shaft.
In the present embodiment, rudder plate is fixedly connected with rudderpost one end, and the rudderpost other end is flexibly connected with rotating shaft.Using upper
Stating the beneficial effect of further scheme is：Using wind direction rudder discharge pipe can be made easily to rotate with the wind, in the case of having wind, wind
Rudder plate is blowed to, rudder plate, which is rotated, drives rudderpost to rotate, rudderpost, which is rotated, drives axis of rotation, and the rotation of rotating shaft drives discharge pipe to rotate,
So that discharge pipe air-out direction is consistent with wind direction.
Further, the second control device and drive device of control discharge pipe air-out direction, the driving dress are included
Motor is set to, the second control device includes angular transducer, microprocessor and controller, and the microprocessor is passed with angle
Sensor is electrically connected, and the angular transducer is connected with discharge pipe, the angle information for detecting discharge pipe air-out direction, and by institute
State angle information and be sent to microprocessor；The microprocessor is electrically connected with the controller, and the microprocessor enters to angle information
After row processing, the angle information for presetting air-out direction with discharge pipe is contrasted, and comparing result is sent into controller；It is described
Controller is electrically connected with drive device, and the drive device may be disposed at top of building, and be connected with discharge pipe, the control
Device controls drive device driving discharge pipe to rotate to default air-out direction according to the comparing result of microprocessor.
Beneficial effect using above-mentioned further scheme is：Under windless condition, by setting angular transducer, detect
The angle information of airduct air-out direction, and angle information is sent to microprocessor, microprocessor is handled angle information
Afterwards, contrasted with preset direction, such as preset direction is positive east, angular transducer surveys direction for 15 ° of east by north, air-out
The actual air-out direction of pipe is 15 ° with preset direction difference, and this result is sent to controller, controller controlled motor by microprocessor
Driving discharge pipe rotates to positive east, makes the discharge pipe in whole city towards unanimously.
Further, the first control device also includes obliquity sensor, the obliquity sensor and rudder plate and control
Device is electrically connected, the obliquity information for detecting rudder plate, and the obliquity information of rudder plate is sent into controller, the controller according to
The obliquity information controls drive device, so as to control the keying of angular transducer.
Beneficial effect using above-mentioned further scheme is：By setting obliquity sensor on rudder plate, rudder can be detected
The obliquity information of plate, when obliquity sensor institute measuring angle is 0, it is windless condition illustrate the same day, and now first control device is not
Start, and controller is operated according to obliquity sensor institute measuring angle controlled motor, so as to start angular transducer, goes out discharge pipe
Wind direction is consistent with preset direction；When obliquity sensor institute measuring angle is not 0, it is to have wind state illustrate the same day, now first
Control device automatic start, makes discharge pipe air-out direction consistent with wind direction, and controller is according to the measuring angle control of obliquity sensor institute
Motor processed does not start.
Further, the purifier is placed between connecting tube air outlet and air inlet, and the purifier can
To remove the filter layer of the pollutant in air, the filter layer sets at least to one layer.
Beneficial effect using above-mentioned further scheme is：By being set between connecting tube air outlet and air inlet
Filter layer, the noxious pollutant in air is filtered out, and clean air passes sequentially through fan outlet and discharge pipe is discharged to greatly
In gas, air pollution is reduced, if being respectively mounted cleaning system of the present utility model in every building, so that it may so that urban air
It is purified.
Brief description of the drawings
Fig. 1 is side view of the present utility model.
Description of reference numerals：1-cavity；2-airduct；3-connecting tube；4-purifier；5-blower fan；6-discharge pipe；
7-solar panels；8-rotating shaft；9-rudder plate；10-rudderpost；11-angular transducer；12-obliquity sensor.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
A kind of city New-air purifying system as shown in Figure 1, including：It is fixed on the multiple cavities 1 on skin, institute
State cavity to arrange about 1, the cavity 1 is uniformly distributed in cavity provided with the through hole with atmosphere, the through hole provided with multiple
1 both sides；
Connected with the upper end of cavity 1 or through the airduct 2 of cavity, the airduct 2 be it is multiple, it is equal with cavity numbers,
The air outlet of the airduct 2 extends upwardly to the top close to building, and passes through connecting tube 3 and the air inlet of purifier 4
Connection；
Purifier 4 for purifying air, the purifier 4 is the filter layer of removal atmosphere pollution, the mistake
Filtering layer is set to three layers, and first layer is that PP nonwoven layers, the second layer are that activated carbon filter layer, third layer are PP layers of nanofibers,
Extraneous air sequentially passes through first layer, the second layer and third layer, effectively filters out sub-micron particulate.The purifier
4 are placed between the air outlet of connecting tube 3 and air inlet, and the air outlet of the purifier 4 connects with the air inlet of blower fan 5
Connect, the air outlet of the blower fan 5 is connected with discharge pipe 6, and the blower fan 5 is arranged on building, the discharge pipe 6 is located at building
At the top of thing；
The solar panels 7 of electric energy are provided, the solar panels 7 are electrically connected with purifier 4 and blower fan 5.
In one embodiment, the cavity 1 is evenly arranged, the distance between neighboring chambers 1 according to depth of building,
Big freedom in minor affairs is set.The cavity 1 is rectangle, is made up of plastic material, for one 30 meters or so of building, cavity 1
Highly may be configured as the interval between 1 meter, two cavitys 1 can be 4 meters, therefore need to only set 6 cavitys 1 to meet requirement.
If building is highly 15 meters, the height of cavity 1 is 1 meter, and two cavitys 1 can be disposed adjacent, i.e., at intervals of 0 between two cavitys
Rice, now probably needs 15 cavitys.The front of each cavity 1 is connected with providing the solar panels 7 of electric energy, each cavity 1
Upper end is connected with the air inlet of airduct 2, and airduct 2 is vertically upwardly extended, through the cavity 1 on upper strata, extremely close to building roof
Portion, is connected with connecting tube 3.If setting 6 cavitys 1, the number of airduct 2 for being finally pooled to connecting tube 3 is also 6, Mei Gefeng
The length of pipe 2 is different, and the residing height of the air inlet of airduct 2 is different, therefore can be with the air of each height of pump drainage.The connecting tube 3
The other end is connected with the air inlet of purifier 4, and outside contaminated air is under the effect of blower fan 5, the through hole from cavity both sides
Into after airduct 2, connecting tube 3 and purifier 4, clean air enters from the air outlet of blower fan 5 is located at building top
The discharge pipe 6 in portion, and it is discharged to high-altitude from discharge pipe 6.
The air outlet of the blower fan 5 and one end of discharge pipe 6 are connected by rotating shaft 8, and the rotating shaft 8 is hollow structure, no
Only discharge pipe 6 can be made to be connected with blower fan 5, the air outlet of discharge pipe 6 is freely rotated in the range of 360 ° of horizontal plane.This is net
Change system also includes the first control device of the control air-out direction of discharge pipe 6, and the first control device includes wind direction rudder, described
Wind direction rudder includes the rudder plate 9 on top and the rudderpost 10 of bottom, and the upper end of rudderpost 10 is fixedly connected with rudder plate 9, and lower end connects vertically
It is connected in the rotating shaft 8.In the case of having wind, wind is to rudder plate 9, and rudder plate 9, which is rotated, drives rudderpost 10 to rotate, the rotational band of rudderpost 10
Dynamic rotating shaft 8 is rotated, and the rotation of rotating shaft 8 drives discharge pipe 6 to rotate, so that the discharge pipe 6 in whole city can be rotated to air-out
Direction is consistent with wind direction.
In another embodiment, the second control device and motor of the control air-out direction of discharge pipe 6 are included,
The second control device includes angular transducer 11, microprocessor and controller, and the angular transducer 11 connects with discharge pipe 6
Connect, the angle information for detecting the air-out direction of discharge pipe 6, and the angle information is sent to microprocessor；Micro- place
Reason device is electrically connected with angular transducer 11, and after the microprocessor is handled angle information, air-out side is preset with discharge pipe 6
To angle information contrasted, and comparing result is sent to controller；The controller and microprocessor and motor
Electrical connection, the motor is arranged at top of building, and is connected with discharge pipe 6, and the controller is according to microprocessor
Comparing result controlled motor driving discharge pipe 6 rotates to default air-out direction；This embodiment be adapted to it is calm in the case of, if
Whole city discharge pipe presets air-out direction for a direction, it is possible to form a kind of city fresh air.
The first control device also includes obliquity sensor 12, the obliquity sensor 12 and rudder plate 9 and controller electricity
Connection, the obliquity information for detecting rudder plate 9, and the obliquity information of rudder plate 9 is sent to controller, the controller is according to institute
Obliquity information controlled motor is stated, so as to control the keying of angular transducer 11.If 12 measuring angles of obliquity sensor are 0, say
The bright same day is windless condition, and now first control device does not start, and controller is controlled according to 12 measuring angles of obliquity sensor
Motor is operated, so as to start angular transducer 11, makes the air-out direction of discharge pipe 6 consistent with preset direction；If obliquity sensor
12 measuring angles are not 0, illustrate the same day to there is wind state, now first control device automatic start, makes the air-out direction of discharge pipe 6
It is consistent with wind direction, and controller does not start according to 12 measuring angle controlled motors of obliquity sensor.
The city New-air purifying system that the utility model is provided is by the use of photovoltaic solar as the energy, by motor city
The upward pump drainage of foul atmosphere in low latitude, after being filtered by purifier 4, building overhead is discharged to by clean air.By setting
Put first control device and second control device and motor, make cleaning system of the present utility model no matter have wind or
Under windless condition, the air-out direction of the discharge pipe 6 facing one direction, therefore can form fresh air in city overhead.It is described
Row after the contaminated air cleaning in city low latitude is constantly arrived high-altitude by New-air purifying system, high-altitude and low latitude is produced pressure
Difference, the air in high-altitude is continuously replenished to low latitude under pressure differential effect, is formed convection current, is improved urban air-quality.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of city New-air purifying system, it is characterised in that including：
At least one cavity on skin is fixed on, the cavity is provided with the through hole with atmosphere；
Connected with the cavity upper end or through the airduct of cavity, the airduct is at least one, the air outlet of the airduct to
On extend close to the top of building；
Purifier for purifying air, the air inlet of the purifier passes through attachment means and the air outlet of the airduct
Connection, the air outlet of the purifier and the air inlet of power set are connected, and the air outlet of the power set is connected with out
Airduct, the discharge pipe is located at top of building；
The energy source device of electric energy is provided, the energy source device is electrically connected with purifier and power set.
2. city New-air purifying system according to claim 1, it is characterised in that the cavity sets at least two, on
Under be evenly arranged, the distance between neighboring chambers according to depth of building, big freedom in minor affairs set.
3. city New-air purifying system according to claim 2, it is characterised in that the airduct is corresponded with cavity and set
Put, the upper end of the air inlet of each airduct and corresponding lower floor's cavity is connected, the air outlet of each airduct is through one or more
Upper strata cavity, and extend upwardly to the air inlet of purifier.
4. city New-air purifying system according to claim 3, it is characterised in that the attachment means are connecting tube, institute
The one end for stating connecting tube is connected with the air outlet of multiple airducts, and the other end is connected with the air inlet of purifier.
5. city New-air purifying system according to claim 1, it is characterised in that the energy source device is solar panels,
The solar panels are arranged at the front of cavity, and the through hole is uniformly distributed in the both sides of cavity provided with multiple.
6. city New-air purifying system according to claim 1, it is characterised in that the power set are arranged at building
On, the power set are blower fan, and the wind wheel of the blower fan is tubular wine wheel, centrifugal wind wheel or axial-flow windwheel.
7. city New-air purifying system according to claim 6, it is characterised in that the air outlet and discharge pipe of the blower fan
One end connected by rotating shaft, the air outlet of the discharge pipe other end can around the shaft in the horizontal plane 360 ° freely rotate；Institute
Rotating shaft is stated for hollow structure, for fan outlet to be connected with discharge pipe.
8. city New-air purifying system according to claim 7, it is characterised in that also including control discharge pipe air-out direction
First control device, the first control device includes wind direction rudder, the rudder plate of the wind direction rudder including top and the rudder of bottom
Axle, the rudderpost upper end is fixedly connected with rudder plate, and lower end is connected in the rotating shaft vertically.
9. city New-air purifying system according to claim 8, it is characterised in that also including control discharge pipe air-out direction
Second control device and drive device, the second control device include angular transducer, microprocessor and controller, it is described
Microprocessor is electrically connected with angular transducer, and the angular transducer is connected with discharge pipe, for detecting discharge pipe air-out direction
Angle information, and the angle information is sent to microprocessor；The microprocessor is electrically connected with the controller, micro- place
After reason device is handled angle information, the angle information for presetting air-out direction with discharge pipe is contrasted, and by comparing result
It is sent to controller；The controller is electrically connected with drive device, and the drive device is connected with discharge pipe, the controller root
Default air-out direction is rotated to according to the comparing result control drive device driving discharge pipe of microprocessor.
10. city New-air purifying system according to claim 9, it is characterised in that the first control device also includes
Obliquity sensor, the obliquity sensor is electrically connected with rudder plate and controller, the obliquity information for detecting rudder plate, and by rudder plate
Obliquity information be sent to controller, the controller controls drive device according to the obliquity information, so as to control angle to pass
The keying of sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080445.4U CN206420103U (en) | 2017-01-22 | 2017-01-22 | A kind of city New-air purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080445.4U CN206420103U (en) | 2017-01-22 | 2017-01-22 | A kind of city New-air purifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420103U true CN206420103U (en) | 2017-08-18 |
Family
ID=59571848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720080445.4U Expired - Fee Related CN206420103U (en) | 2017-01-22 | 2017-01-22 | A kind of city New-air purifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917498A (en) * | 2017-11-29 | 2018-04-17 | 任镜颐 | A kind of system that building periphery haze is administered using cross-ventilation |
| CN108954644A (en) * | 2018-08-09 | 2018-12-07 | 天津城建大学 | A kind of solar energy ventilator |
-
2017
- 2017-01-22 CN CN201720080445.4U patent/CN206420103U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917498A (en) * | 2017-11-29 | 2018-04-17 | 任镜颐 | A kind of system that building periphery haze is administered using cross-ventilation |
| CN108954644A (en) * | 2018-08-09 | 2018-12-07 | 天津城建大学 | A kind of solar energy ventilator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20210122 |