CN108499308A - A kind of intake air amount control device and method of air cleaning unit - Google Patents
A kind of intake air amount control device and method of air cleaning unit Download PDFInfo
- Publication number
- CN108499308A CN108499308A CN201810091235.4A CN201810091235A CN108499308A CN 108499308 A CN108499308 A CN 108499308A CN 201810091235 A CN201810091235 A CN 201810091235A CN 108499308 A CN108499308 A CN 108499308A
- Authority
- CN
- China
- Prior art keywords
- air
- cleaning unit
- control module
- intake
- valve
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/106—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of intake air amount control device of air cleaning unit and methods, and the system comprises air cleaning unit, control module and polluted gas concentration detection modules（5）；The air cleaning unit includes air inlet fan（1）, intake valve（2）, air purifying room（3）, air bleeding valve（4）, negative pressure valve（6）And vacuum pump（7）；The input terminal of the control module and polluted gas concentration detection module（5）Connection, the output end of control module respectively with air inlet fan（1）, intake valve（2）, air bleeding valve（4）, negative pressure valve（6）And vacuum pump（7）Connection.The present invention from air cleaning unit without taking out purification medium, you can the negative pressure regeneration for completing purification medium adjusts air inflow, ensure that the effect of air purification further, it is possible to according to the concentration for including pollutant in air after purification.
Description
Technical field
The present invention relates to air purification, more particularly to the intake air amount control device and method of a kind of air cleaning unit.
Background technology
Air pollution refers to being showed enough since mankind's activity or natural process cause Cucumber to enter in air
Concentration, the phenomenon that reaching time enough, and therefore compromise the comfortable of the mankind, health and wellbeing or environment；With China
The continuous development of industry, air pollution have become urgent problem.
The type of air pollutants includes very much, their form may be the particle of solid-like, it is also possible to drop or
It is being mixed for gas or these forms；For now, in addition to solid-state pollutes, air pollution is mainly reflected in toxic
Pernicious gas（Polluted gas）On, such as NO2、SO2、O3Deng for solid particulate pollutant, generally using strainer filtering progress
It filters out, for toxic and harmful gas, generally requires in air cleaning unit, utilize purification medium（Generally activated carbon）It carries out
Absorption；During adsorbing toxic and harmful gas using purification medium, due to the limited sorption capacity of purification medium, adsorbing
Saturation state can be entered after a certain amount of pernicious gas, at this point, the purification medium in air cleaning unit can only be replaced, or will
Purification medium takes out, and after carrying out regeneration treatment to purification medium, puts in back in air cleaning unit, still, either replaces net
Change medium, or regeneration treatment is carried out to purification medium, is required to take out purification medium from air cleaning unit, gives air
The use of purifier brings inconvenience.Also, detergent power of the purification medium in same time is limited, if
The polluted gas excessive concentration of outside air will be unable to effectively be purified, and purified air is still likely to occur can not
The problem of meeting decontamination index.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of controls of the air inflow of air cleaning unit to be
System and method, without taking out purification medium from air cleaning unit, you can the negative pressure regeneration of purification medium is completed, also,
It can adjust air inflow according to the concentration for including pollutant in air after purification, ensure that the effect of air purification.
The purpose of the present invention is achieved through the following technical solutions：A kind of air inflow control system of air cleaning unit
System, including air cleaning unit, control module and polluted gas concentration detection module；
The air cleaning unit includes air inlet fan, intake valve, air purifying room, air bleeding valve, negative pressure valve and vacuum pump；The sky
Gas is provided with purification medium in clean room；The air inlet of air purifying room is connected to by intake valve with air inlet fan, air purifying room
Exhaust outlet pass sequentially through air bleeding valve and polluted gas concentration detection module purified air be discharged；Changed air purifying room is also
It is connected to the air inlet of vacuum pump by negative pressure valve；
The input terminal of the control module is connect with polluted gas concentration detection module, the output end of control module respectively with air inlet
Machine, intake valve, air bleeding valve, negative pressure valve are connected with vacuum pump；Control module for control air cleaning unit in air purification and
Cleaning of medium two states switch over, and under air purification state, according to the letter from polluted gas concentration detection module
Breath controls the rotating speed of air inlet fan and the aperture of intake valve, and then realizes intake control.
Wherein, the purification medium includes netted activated carbon.
Preferably, the air cleaning unit further includes waste gas collection box, the exhaust of the waste gas collection box and vacuum pump
Mouth connection；The control module includes MCU controllers.
Preferably, the polluted gas concentration detection module includes that content of nitrogen dioxide detection sensor, sulfur dioxide are dense
Spend detection sensor and ozone concentration detection sensor.
A kind of air input control method of the intake air amount control device of air cleaning unit, includes the following steps：
S1. in each work period of air cleaning unit, control module controls intake valve, exhaust valve opening, and negative pressure valve closes
It closes, and controls air inlet fan startup, vacuum pump is closed, into the air purification state that the duration is T1；
S2. under the action of air inlet fan, air enters air purifying room through intake valve, the purification medium absorption in air purifying room
Polluted gas in air completes air purification, and purified air is through air bleeding valve and polluted gas concentration detection module heel row
Go out；
S3. polluted gas concentration detection module acquires the contaminant information for including in purified air in real time, is transferred to control
Module；
S4. control module calculates real-time pollutant concentration according to the information from polluted gas concentration detection module, and with set
Fixed concentration threshold compares, and judges whether real-time pollutant concentration is more than the concentration threshold set；
If so, control module controls air inlet fan and intake valve, air inlet fan rotating speed is made to decline, the aperture of intake valve reduces,
To reduce the air inflow of air evolution device, and enter step S5；
If it is not, control module control air inlet fan keeps current rotating speed, intake valve to keep current aperture, continue air purification；
S5. step S3 ~ S4 is repeated, until the concentration threshold that real-time pollutant concentration is no more than setting.
Wherein, the step S4 includes：
Content of nitrogen dioxide, sulfur dioxide concentration and the ozone concentration phase of control module automatic pollution in future gas concentration detection module
Add, obtains real-time pollutant concentration；
Control module judges whether real-time pollutant concentration is more than the concentration threshold set；
If so, control module controls air inlet fan and intake valve, air inlet fan rotating speed is made to decline, the aperture of intake valve reduces,
To reduce the air inflow of air evolution device, and enter step S5；
If it is not, control module control air inlet fan keeps current rotating speed, intake valve to keep current aperture, continue air purification.
Further include cleaning of medium step after air purification state continues the T1 times：
Control module controls intake valve, exhaust valve closure, and negative pressure valve is opened, and controls air inlet fan closing, and vacuum pump startup enters
Duration is the cleaning of medium state of T2；
Under the action of vacuum pump, negative pressure is generated in air purifying room, the purification medium in air purifying room receives negative pressure influence,
It releases the polluted gas of absorption and is regenerated；The polluted gas of release is discharged into through vacuum pump in waste gas collection box.
The beneficial effects of the invention are as follows：The present invention from air cleaning unit without taking out purification medium, you can completes
The negative pressure of purification medium regenerates, further, it is possible to according to the concentration for including pollutant in air after purification, adjusts air inflow, ensures
The effect of air purification.
Description of the drawings
Fig. 1 is the structural schematic diagram of air cleaning unit；
The electrical connection schematic diagram of Fig. 2 module and air cleaning unit in order to control；
Fig. 3 is flow chart of the method for the present invention.
In figure, 1- air inlet fans, 2- intake valves, 3- air purifying rooms, 4- air bleeding valves, 5- polluted gas concentration detection modules,
6- negative pressure valves, 7- vacuum pumps, 8- waste gas collection box.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1, a kind of intake air amount control device of air cleaning unit, including air cleaning unit, control module
With polluted gas concentration detection module 5；
The air cleaning unit includes air inlet fan 1, intake valve 2, air purifying room 3, air bleeding valve 4, negative pressure valve 6 and vacuum pump 7；
It is provided with purification medium in the air purifying room 3；The air inlet of air purifying room 3 is connected to by intake valve 2 with air inlet fan 1,
The exhaust outlet of air purifying room 3 passes sequentially through air bleeding valve 4 and purified air is discharged in polluted gas concentration detection module 5；Institute
Change air purifying room 3 to be also connected to the air inlet of vacuum pump 7 by negative pressure valve 6；
As shown in Fig. 2, the input terminal of the control module is connect with polluted gas concentration detection module 5, the output of control module
End is connect with air inlet fan 1, intake valve 2, air bleeding valve 4, negative pressure valve 6 and vacuum pump 7 respectively；Control module is for controlling air purification
Device is switched in air purification and cleaning of medium two states, and under air purification state, according to from polluted gas
The information of concentration detection module 5 controls the aperture of the rotating speed and intake valve 2 of air inlet fan 1, and then realizes intake control.
In embodiments herein, the purification medium includes netted activated carbon, and the air inlet fan 1 is that rotating speed is adjustable
Wind turbine, the intake valve 2, air bleeding valve 4, negative pressure valve 6 are solenoid valve, and the intake valve 2 is the adjustable solenoid valve of aperture.
In embodiments herein, the air cleaning unit further includes waste gas collection box 8, the waste gas collection box 8
It is connected to the exhaust outlet of vacuum pump 7；The control module includes MCU controllers.
In embodiments herein, the polluted gas concentration detection module 5 includes content of nitrogen dioxide detection sensing
Device, sulfur dioxide concentration detection sensor and ozone concentration detection sensor.
As shown in figure 3, a kind of air input control method of the intake air amount control device of air cleaning unit, including following step
Suddenly：
S1. in each work period of air cleaning unit, control module controls intake valve 2, air bleeding valve 4 is opened, negative pressure valve 6
It closes, and controls the startup of air inlet fan 1, vacuum pump 7 is closed, into the air purification state that the duration is T1；
S2. under the action of air inlet fan 1, air enters air purifying room 3, the purification medium in air purifying room 3 through intake valve 2
The polluted gas in air is adsorbed, completes air purification, purified air is through air bleeding valve 4 and polluted gas concentration detection module
It is discharged after 5；
S3. polluted gas concentration detection module 5 acquires the contaminant information for including in purified air in real time, is transferred to control
Module；
S4. control module calculates real-time pollutant concentration according to the information from polluted gas concentration detection module 5, and with set
Fixed concentration threshold compares, and judges whether real-time pollutant concentration is more than the concentration threshold set；
If so, control module controls air inlet fan 1 and intake valve 2,1 rotating speed of air inlet fan is made to decline, the aperture drop of intake valve 2
It is low, to reduce the air inflow of air evolution device, and enter step S5；
If it is not, control module control air inlet fan 1 keeps current rotating speed, intake valve 2 to keep current aperture, it is net to continue air
Change；
S5. step S3 ~ S4 is repeated, until the concentration threshold that real-time pollutant concentration is no more than setting.
Wherein, the step S4 includes：
Content of nitrogen dioxide, sulfur dioxide concentration and the ozone concentration of control module automatic pollution in future gas concentration detection module 5
It is added, obtains real-time pollutant concentration；
Control module judges whether real-time pollutant concentration is more than the concentration threshold set；
If so, control module controls air inlet fan 1 and intake valve 2,1 rotating speed of air inlet fan is made to decline, the aperture drop of intake valve 2
It is low, to reduce the air inflow of air evolution device, and enter step S5；
If it is not, control module control air inlet fan 1 keeps current rotating speed, intake valve 2 to keep current aperture, it is net to continue air
Change.
Further include cleaning of medium step after air purification state continues the T1 times：
Control module controls intake valve 2, air bleeding valve 4 is closed, and negative pressure valve 6 is opened, and controls the closing of air inlet fan 1, and vacuum pump 7 opens
It is dynamic, into the cleaning of medium state that the duration is T2；
Under the action of vacuum pump 7, negative pressure is generated in air purifying room 3, the purification medium in air purifying room 3 receives negative pressure shadow
It rings, releases the polluted gas of absorption and regenerated；The polluted gas of release is discharged into through vacuum pump 7 in waste gas collection box 8；
In some embodiments, the exhaust gas that can will be collected in waste gas collection box is transported to the exhaust-gas treatment field of concentration by exhaust piping,
In further embodiments, the exhaust gas that can will be also collected in waste gas collection box, is periodically discharged into outdoor.
After cleaning of medium state duration T2, then enter the work period of next air cleaning unit, under
One work period includes still the cleaning of medium of the air purification and duration T 2 of duration T 1；In the implementation of the application
The value of T1 and T2 can carry out self-defined setting in example, such as T1 is 30 minutes, and T2 is 10 minutes.
To sum up, the present invention from air cleaning unit without taking out purification medium, you can completes the negative pressure of purification medium
Regeneration adjusts air inflow, ensure that the effect of air purification further, it is possible to according to the concentration for including pollutant in air after purification
Fruit.
Claims (8)
1. a kind of intake air amount control device of air cleaning unit, it is characterised in that：Including air cleaning unit, control module and
Polluted gas concentration detection module（5）；
The air cleaning unit includes air inlet fan（1）, intake valve（2）, air purifying room（3）, air bleeding valve（4）, negative pressure valve（6）
And vacuum pump（7）；The air purifying room（3）In be provided with purification medium；The air inlet of air purifying room (3) passes through intake valve
（2）With air inlet fan（1）Connection, air purifying room（3）Exhaust outlet pass sequentially through air bleeding valve（4）With polluted gas Concentration Testing mould
Block（5）Purified air is discharged；Changed air purifying room（3）Also pass through negative pressure valve（6）With vacuum pump（7）Air inlet connect
It is logical；
The input terminal of the control module and polluted gas concentration detection module（5）Connection, the output end of control module respectively with
Air inlet fan（1）, intake valve（2）, air bleeding valve（4）, negative pressure valve（6）And vacuum pump（7）Connection；Control module is net for controlling air
Makeup is set to be switched in air purification and cleaning of medium two states, and under air purification state, according to from contamination gas
Bulk concentration detection module（5）Information, control air inlet fan（1）Rotating speed and intake valve（2）Aperture, and then realize intake control
System.
2. a kind of intake air amount control device of air cleaning unit according to claim 1, it is characterised in that：The purification
Medium includes netted activated carbon.
3. a kind of intake air amount control device of air cleaning unit according to claim 1, it is characterised in that：The air
Purifier further includes waste gas collection box（8）, the waste gas collection box（8）With vacuum pump（7）Exhaust outlet connection.
4. a kind of intake air amount control device of air cleaning unit according to claim 1, it is characterised in that：The control
Module includes MCU controllers.
5. a kind of intake air amount control device of air cleaning unit according to claim 1, it is characterised in that：The pollution
Gas concentration detection module（5）It is dense including content of nitrogen dioxide detection sensor, sulfur dioxide concentration detection sensor and ozone
Spend detection sensor.
6. a kind of air inflow of the intake air amount control device of air cleaning unit according to any one of claim 1 ~ 5
Control method, it is characterised in that：Include the following steps：
S1. in each work period of air cleaning unit, control module controls intake valve（2）, air bleeding valve（4）It opens, bears
Pressure valve（6）It closes, and controls air inlet fan（1）Start, vacuum pump（7）It closes, into the air purification state that the duration is T1；
S2. in air inlet fan（1）Under the action of, air is through intake valve（2）Into air purifying room（3）, air purifying room（3）In
Purification medium adsorbs the polluted gas in air, completes air purification, purified air is through air bleeding valve（4）It is dense with polluted gas
Spend detection module（5）After be discharged；
S3. polluted gas concentration detection module（5）The contaminant information for including in purified air is acquired in real time, is transferred to control
Molding block；
S4. control module is according to from polluted gas concentration detection module（5）Information calculate real-time pollutant concentration, and with
The concentration threshold of setting compares, and judges whether real-time pollutant concentration is more than the concentration threshold set；
If so, control module is to air inlet fan（1）And intake valve（2）It is controlled, makes air inlet fan（1）Rotating speed declines, intake valve（2）
Aperture reduce, to reduce the air inflow of air evolution device, and enter step S5；
If it is not, control module controls air inlet fan（1）Keep current rotating speed, intake valve（2）Current aperture is kept, air is continued
Purification；
S5. step S3 ~ S4 is repeated, until the concentration threshold that real-time pollutant concentration is no more than setting.
7. a kind of air input control method of the intake air amount control device of air cleaning unit according to claim 6,
It is characterized in that：The step S4 includes：
Control module automatic pollution in future gas concentration detection module（5）Content of nitrogen dioxide, sulfur dioxide concentration and ozone it is dense
Degree is added, and obtains real-time pollutant concentration；
Control module judges whether real-time pollutant concentration is more than the concentration threshold set；
If so, control module is to air inlet fan（1）And intake valve（2）It is controlled, makes air inlet fan（1）Rotating speed declines, intake valve（2）
Aperture reduce, to reduce the air inflow of air evolution device, and enter step S5；
If it is not, control module controls air inlet fan（1）Keep current rotating speed, intake valve（2）Current aperture is kept, air is continued
Purification.
8. a kind of air input control method of the intake air amount control device of air cleaning unit according to claim 6,
It is characterized in that：Further include cleaning of medium step after air purification state continues the T1 times：
Control module controls intake valve（2）, air bleeding valve（4）It closes, negative pressure valve（6）It opens, and controls air inlet fan（1）It closes, very
Sky pump（7）Start, into the cleaning of medium state that the duration is T2；
In vacuum pump（7）Under the action of, air purifying room（3）Middle generation negative pressure, air purifying room（3）In purification medium receive
Negative pressure influences, and releases the polluted gas of absorption and is regenerated；The polluted gas of release is through vacuum pump（7）It is discharged into gas sampling
Case（8）In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091235.4A CN108499308A (en) | 2018-01-30 | 2018-01-30 | A kind of intake air amount control device and method of air cleaning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810091235.4A CN108499308A (en) | 2018-01-30 | 2018-01-30 | A kind of intake air amount control device and method of air cleaning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108499308A true CN108499308A (en) | 2018-09-07 |
Family
ID=63374871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810091235.4A Pending CN108499308A (en) | 2018-01-30 | 2018-01-30 | A kind of intake air amount control device and method of air cleaning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108499308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523213A (en) * | 2019-09-26 | 2019-12-03 | 海诺尔(宜宾)环保发电有限公司 | A kind of garbage pool foul smell negative pressure non-proliferation system and method based on exhaust monitoring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912964A (en) * | 2014-03-24 | 2014-07-09 | 中国科学院上海微系统与信息技术研究所 | Intelligent detection-control system and method for air purifiers |
| CN107398142A (en) * | 2017-08-21 | 2017-11-28 | 青岛大学 | A kind of air cleaning facility of filter core free of replacement |
-
2018
- 2018-01-30 CN CN201810091235.4A patent/CN108499308A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912964A (en) * | 2014-03-24 | 2014-07-09 | 中国科学院上海微系统与信息技术研究所 | Intelligent detection-control system and method for air purifiers |
| CN107398142A (en) * | 2017-08-21 | 2017-11-28 | 青岛大学 | A kind of air cleaning facility of filter core free of replacement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523213A (en) * | 2019-09-26 | 2019-12-03 | 海诺尔(宜宾)环保发电有限公司 | A kind of garbage pool foul smell negative pressure non-proliferation system and method based on exhaust monitoring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102748809A (en) | Intelligent split-type air treatment system | |
| CN201415106Y (en) | Offensive odor waste gas full-automatic deodorizing device | |
| CN109099443A (en) | A kind of disposable purifying processing device of industrial waste gas | |
| CN201182965Y (en) | Combined lab waste gas purification processing unit | |
| CN202002224U (en) | Domestic indoor air purifying device capable of supplementing oxygen | |
| CN108355460A (en) | A kind of air cleaning unit operation status control system and method based on purifying rate | |
| CN205048583U (en) | Air new trend clearing machine | |
| CN108507106A (en) | A kind of fresh air system and its air-treatment method | |
| CN203364260U (en) | Air purifying and oxygen enriching system | |
| CN203349406U (en) | Combined-type air treatment device | |
| CN108499308A (en) | A kind of intake air amount control device and method of air cleaning unit | |
| CN205939426U (en) | Indoor air purification device | |
| CN205461430U (en) | Organic waste gas treatment system | |
| CN104279633B (en) | A kind of composition of air self-checking device and its control method | |
| CN207928894U (en) | A kind of high-performance low power consuming air purifier filter device | |
| CN208025637U (en) | A kind of binary channels negative pressure air purifier | |
| CN208194036U (en) | A kind of air cleaning unit based on the cleaning of medium under negative pressure | |
| CN208194035U (en) | One kind is based on the regenerated air cleaning unit of magnetization | |
| CN108479295A (en) | A kind of air cleaning unit and its cleaning of medium method based on gas displacement | |
| CN208018373U (en) | A kind of heat safe air cleaning unit | |
| CN208018617U (en) | A kind of air cleaning unit based on negative pressure and hot recycling | |
| CN206884671U (en) | A car air purifier with real-time monitoring by mobile phone | |
| CN208018372U (en) | A kind of air cleaning unit based on the cleaning of medium under ultrasonic wave | |
| CN212039716U (en) | An air purification system based on automobile engine waste heat regeneration | |
| CN108087980A (en) | A kind of new wind turbine of multifunctional air purifying and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180907 |
|
| RJ01 | Rejection of invention patent application after publication |