CN108626862A - A kind of air purification medium replacement system for prompting and method based on switching time - Google Patents
A kind of air purification medium replacement system for prompting and method based on switching time Download PDFInfo
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- CN108626862A CN108626862A CN201810089616.9A CN201810089616A CN108626862A CN 108626862 A CN108626862 A CN 108626862A CN 201810089616 A CN201810089616 A CN 201810089616A CN 108626862 A CN108626862 A CN 108626862A
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- air
- polluted gas
- control module
- purification
- detection module
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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
- 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
- F24F11/00—Control or safety arrangements
-
- 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
-
- 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
- F24F2110/74—Ozone
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a kind of, and the air purification medium based on switching time replaces system for prompting and method, including air cleaning unit, polluted gas detection module one（5）, polluted gas detection module two（6）, control module and Medium Replacement alarm set；The air cleaning unit includes air inlet fan（1）, intake valve（2）, air purifying room（3）, air bleeding valve（4）, negative pressure valve（7）And vacuum pump（8）.The present invention from air cleaning unit without often taking out purification medium, you can the working condition for switching air cleaning unit when purifying rate is relatively low carries out negative pressure regeneration to purification medium, ensure that the clean-up effect of air cleaning unit；Meanwhile the working condition switching time after being regenerated based on air purification medium, it can reflect purification medium adsorption capacity, and carry out purification medium accordingly and replace prompting.
Description
Technical field
The present invention relates to air purification, are replaced more particularly to a kind of air purification medium based on switching time and remind system
System and method.
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
On pernicious gas (polluted gas), 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, carried out using purification medium (generally activated carbon)
Absorption；During adsorbing toxic and harmful gas using purification medium, due to the limited sorption capacity of purification medium, adsorbing
It can need to take out purification medium under normal circumstances into saturation state after a certain amount of pernicious gas, purification medium is carried out
After regeneration treatment, put in back in air cleaning unit；But purification medium is either replaced, or purification medium is carried out again
Raw processing, is required for often taking out purification medium from air cleaning unit, and takes out the time of air purification medium every time
Interval is shorter, and inconvenience is brought to the use of air cleaning unit；Meanwhile purification medium is constantly being purified, was being regenerated
Cheng Zhonghui gradually appears performance loss, and the adsorption capacity and usage time after regenerating each time can decline, and make in purification medium
After longer time, it is replaced also very necessary.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of air purification mediums based on switching time
System for prompting and method are replaced, without often taking out purification medium from air cleaning unit, you can when purifying rate is relatively low
The working condition for switching air cleaning unit carries out negative pressure regeneration to purification medium, ensure that the purification effect of air cleaning unit
Fruit；Meanwhile the working condition switching time after being regenerated based on air purification medium, it can reflect purification medium adsorption capacity,
And it carries out purification medium accordingly and replaces prompting.
The purpose of the present invention is achieved through the following technical solutions：A kind of air purification medium based on switching time
Replace system for prompting, including air cleaning unit, polluted gas detection module one, polluted gas detection module two, control module
With Medium Replacement alarm set；
The air cleaning unit includes air inlet fan, intake valve, air purifying room, air bleeding valve, negative pressure valve and vacuum pump, institute
It states and is provided with purification medium in air purifying room, the air inlet of air purifying room is connected to by intake valve with air inlet fan, the dirt
Gas detection module one is contaminated to be arranged between air purifying room and air inlet fan；The exhaust outlet of air purifying room passes sequentially through exhaust
Purified air is discharged for valve, polluted gas detection module two；Changed air purifying room also passes through negative pressure valve and vacuum pump
Air inlet is connected to；
The input terminal of the control module is connect with polluted gas detection module one, polluted gas detection module two respectively,
The output end of control module connects with air inlet fan, intake valve, air bleeding valve, negative pressure valve, vacuum pump and Medium Replacement alarm set respectively
It connects；The information that control module is used to be detected according to polluted gas detection module one and polluted gas detection module two calculates empty
Gas purifying rate, controls the working condition switching of air cleaning unit, and according to the switching time of working condition, is carried to Medium Replacement
The work of awake device is controlled.
Preferably, the Medium Replacement alarm set includes loud speaker and prompting indicator light；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.
Wherein, the polluted gas detection module one, polluted gas detection module two include that content of nitrogen dioxide detects
Sensor, sulfur dioxide concentration detection sensor and ozone concentration detection sensor.
A kind of air purification medium based on switching time replaces the control method of system for prompting, including following step
Suddenly：
S1. control module control intake valve, exhaust valve opening, negative pressure valve are closed, and control air inlet fan startup, and vacuum pump closes
It closes, into air purification state, and timing of starting from scratch, count the duration of air purification state；
S2. air enters air purifying room, the purification medium in air purifying room under the action of air inlet fan through intake valve
The polluted gas in air is adsorbed, air purification is completed, purified air is discharged through air bleeding valve；
S3. the polluted gas information before the detection purification in real time of polluted gas detection module one, is transferred to control module, pollutes
Gas detection module two detects purified polluted gas information in real time, control module is transferred to, before control module is according to pollution
Polluted gas information afterwards calculates real-time air purifying rate；
S4. control module judges whether real-time air purifying rate is less than predetermined threshold value, if so, S5 is entered step, if it is not,
Continue air purification；
S5. judge whether the duration of air purification state is less than the time threshold of setting, if so, control module controls
Medium Replacement alarm set is started to work, and user is reminded to carry out purification medium replacement；If it is not, entering step S6；
S6. control module control intake valve, exhaust valve closure, negative pressure valve are opened, and control air inlet fan closing, and vacuum pump opens
It is dynamic, into negative pressure reproduced state；
S7. under negative pressure reproduced state, vacuum pump extracts the air in air purifying room, is generated in air purifying room negative
It presses, the purification medium in air purifying room receives negative pressure influence, releases the polluted gas of absorption and is regenerated；The dirt of release
Dye gas is discharged into through vacuum pump in waste gas collection box；
S7. after negative pressure reproduced state reaches setting time, return to step S1, control device controls air purification dress again
It sets and enters air purification state.
Wherein, the step S3 includes following sub-step：
S301. the content of nitrogen dioxide before the detection purification in real time of polluted gas detection module oneSulfur dioxide concentrationAnd ozone concentrationIt is transferred to control module；
S302. polluted gas detection module two detects purified content of nitrogen dioxide in real timeSulfur dioxide concentrationAnd ozone concentrationIt is transferred to control module；
S303. control module calculates the purifying rate of nitrogen dioxide
S304. control module calculates the purifying rate of sulfur dioxide
S305. control module calculates the purifying rate of ozone
S305. control module according toWithIt is weighted, obtains air purification rate μ：
In formula, α1Indicate the weight of nitrogen dioxide purifying rate, α2Indicate purging sulfur dioxide rate weight, α3Indicate that ozone is net
Rate weight.
The beneficial effects of the invention are as follows：It is not necessary that often purification medium is taken out from air cleaning unit, you can purifying
The working condition for switching air cleaning unit when rate is relatively low carries out negative pressure regeneration to purification medium, ensure that air cleaning unit
Clean-up effect；Meanwhile the working condition switching time after being regenerated based on air purification medium, it can reflect that purification medium is inhaled
Attached ability, and carry out purification medium accordingly and replace prompting.
Description of the drawings
Fig. 1 is the principle schematic diagram of the present invention；
Fig. 2 is the electrical connection schematic diagram of the present invention；
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 detection module one, 6-
Polluted gas detection module two, 7- negative pressure valves, 8- vacuum pumps, 9- 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 air purification medium based on switching time replaces system for prompting, including air purification dress
It sets, polluted gas detection module 1, polluted gas detection module 26, control module and Medium Replacement alarm set；
The air cleaning unit includes air inlet fan 1, intake valve 2, air purifying room 3, air bleeding valve 4, negative pressure valve 7 and vacuum
8 are pumped, is provided with purification medium in the air purifying room 3, the air inlet of air purifying room 3 passes through intake valve 2 and air inlet fan 1
Connection, the polluted gas detection module 1 are arranged between air purifying room 3 and air inlet fan 1；The exhaust of air purifying room 3
Mouth passes sequentially through air bleeding valve 4, purified air is discharged polluted gas detection module 26；Changed air purifying room 3 also passes through
Negative pressure valve 7 is connected to the air inlet of vacuum pump 8；
The input terminal of the control module connects with polluted gas detection module 1, polluted gas detection module 26 respectively
It connects, the output end of control module is carried with air inlet fan 1, intake valve 2, air bleeding valve 4, negative pressure valve 7, vacuum pump 8 and Medium Replacement respectively
Device of waking up connects；The letter that control module is used to be detected according to polluted gas detection module 1 and polluted gas detection module 26
Breath calculates air purification rate, controls the working condition switching of air cleaning unit, and according to the switching time of working condition, right
The work of Medium Replacement alarm set is controlled.
In embodiments herein, the Medium Replacement alarm set includes loud speaker and prompting indicator light；Described
Purification medium includes netted activated carbon.
In embodiments herein, the air cleaning unit further includes waste gas collection box 9, the waste gas collection box 9
It is connected to the exhaust outlet of vacuum pump 8；The control module includes MCU controllers.
The polluted gas detection module 1, polluted gas detection module 26 include content of nitrogen dioxide detection sensing
Device, sulfur dioxide concentration detection sensor and ozone concentration detection sensor.
A kind of air purification medium based on switching time replaces the control method of system for prompting, including following step
Suddenly：
S1. control module control intake valve 2, air bleeding valve 4 are opened, and negative pressure valve 7 is closed, and control the startup of air inlet fan 1, vacuum
Pump 8 is closed, into air purification state, and timing of starting from scratch, count the duration of air purification state；
S2. air enters air purifying room 3, the purification in air purifying room 3 under the action of air inlet fan 1 through intake valve 2
Medium adsorbs the polluted gas in air, completes air purification, and purified air is discharged through air bleeding valve 4；
S3. the polluted gas information before the detection purification in real time of polluted gas detection module 1, is transferred to control module, dirty
Dye gas detection module 26 detects purified polluted gas information in real time, is transferred to control module, control module is according to pollution
Front and back polluted gas information calculates real-time air purifying rate；
S4. control module judges whether real-time air purifying rate is less than predetermined threshold value, if so, S5 is entered step, if it is not,
Continue air purification；
S5. judge whether the duration of air purification state is less than the time threshold of setting, if so, control module controls
Medium Replacement alarm set is started to work, and user is reminded to carry out purification medium replacement；If it is not, entering step S6；
S6. control module control intake valve 2, air bleeding valve 4 are closed, and negative pressure valve 7 is opened, and control the closing of air inlet fan 1, vacuum
Pump 8 starts, into negative pressure reproduced state；
S7. under negative pressure reproduced state, vacuum pump 8 extracts the air in air purifying room 3, is generated in air purifying room 3
Negative pressure, the purification medium in air purifying room 3 receive negative pressure influence, release the polluted gas of absorption and regenerated；Release
Polluted gas be discharged into waste gas collection box 9 through vacuum pump 8；
S7. after negative pressure reproduced state reaches setting time, return to step S1, control device controls air purification dress again
It sets and enters air purification state.
The step S3 includes following sub-step：
S301. the content of nitrogen dioxide before the detection purification in real time of polluted gas detection module 1Sulfur dioxide concentrationAnd ozone concentrationIt is transferred to control module；
S302. polluted gas detection module 26 detects purified content of nitrogen dioxide in real timeSulfur dioxide concentrationAnd ozone concentrationIt is transferred to control module；
S303. control module calculates the purifying rate of nitrogen dioxide
S304. control module calculates the purifying rate of sulfur dioxide
S305. control module calculates the purifying rate of ozone
S305. control module according toWithIt is weighted, obtains air purification rate μ：
In formula, α1Indicate the weight of nitrogen dioxide purifying rate, α2Indicate purging sulfur dioxide rate weight, α3Indicate that ozone is net
Rate weight；α in some embodiments1、α2、α3It is 1/3.
To sum up, the present invention from air cleaning unit without often taking out purification medium, you can when purifying rate is relatively low
The working condition for switching air cleaning unit carries out negative pressure regeneration to purification medium, ensure that the purification effect of air cleaning unit
Fruit；Meanwhile the working condition switching time after being regenerated based on air purification medium, it can reflect purification medium adsorption capacity,
And it carries out purification medium accordingly and replaces prompting.
Claims (8)
1. a kind of air purification medium based on switching time replaces system for prompting, it is characterised in that：Including air cleaning unit,
Polluted gas detection module one (5), polluted gas detection module two (6), control module and Medium Replacement alarm set；
The air cleaning unit includes air inlet fan (1), intake valve (2), air purifying room (3), air bleeding valve (4), negative pressure valve (7)
With vacuum pump (8), purification medium is provided in the air purifying room (3), the air inlet of air purifying room (3) passes through intake valve
(2) be connected to air inlet fan (1), the polluted gas detection module one (5) setting air purifying room (3) and air inlet fan (1) it
Between；The exhaust outlet of air purifying room (3) passes sequentially through air bleeding valve (4), polluted gas detection module two (6) by purified air
Discharge；Changed air purifying room (3) is also connected to by negative pressure valve (7) with the air inlet of vacuum pump (8)；
The input terminal of the control module connects with polluted gas detection module one (5), polluted gas detection module two (6) respectively
Connect, the output end of control module respectively with air inlet fan (1), intake valve (2), air bleeding valve (4), negative pressure valve (7), vacuum pump (8) and
Medium Replacement alarm set connects；Control module is used for according to polluted gas detection module one (5) and polluted gas detection module
The information that two (6) detect calculates air purification rate, controls the working condition switching of air cleaning unit, and according to work shape
The switching time of state controls the work of Medium Replacement alarm set.
2. a kind of air purification medium based on switching time according to claim 1 replaces system for prompting, feature exists
In：The Medium Replacement alarm set includes loud speaker and prompting indicator light.
3. a kind of air purification medium based on switching time according to claim 1 replaces system for prompting, feature exists
In：The purification medium includes netted activated carbon.
4. a kind of air purification medium based on switching time according to claim 1 replaces system for prompting, feature exists
In：The air cleaning unit further includes waste gas collection box (9), and the waste gas collection box (9) and the exhaust outlet of vacuum pump (8) connect
It is logical.
5. a kind of air purification medium based on switching time according to claim 1 replaces system for prompting, feature exists
In：The control module includes MCU controllers.
6. a kind of air purification medium based on switching time according to claim 1 replaces system for prompting, feature exists
In：The polluted gas detection module one (5), polluted gas detection module two (6) include content of nitrogen dioxide detection sensing
Device, sulfur dioxide concentration detection sensor and ozone concentration detection sensor.
It is reminded 7. a kind of air purification medium based on switching time according to any one of claim 1~6 is replaced
The control method of system, it is characterised in that：Include the following steps：
S1. control module control intake valve (2), air bleeding valve (4) are opened, and negative pressure valve (7) is closed, and control air inlet fan (1) startup,
Vacuum pump (8) is closed, into air purification state, and timing of starting from scratch, count the duration of air purification state；
S2. air is under the action of air inlet fan (1), enters air purifying room (3) through intake valve (2), in air purifying room (3)
Purification medium absorption air in polluted gas, complete air purification, purified air through air bleeding valve (4) be discharged；
S3. the polluted gas information before polluted gas detection module one (5) detection purification in real time, is transferred to control module, pollutes
Gas detection module two (6) detects purified polluted gas information in real time, is transferred to control module, control module is according to pollution
Front and back polluted gas information calculates real-time air purifying rate；
S4. control module judges whether real-time air purifying rate is less than predetermined threshold value, if so, S5 is entered step, if it is not, continuing
Carry out air purification；
S5. judge whether the duration of air purification state is less than the time threshold of setting, if so, control module controls medium
It replaces alarm set to start to work, user is reminded to carry out purification medium replacement；If it is not, entering step S6；
S6. control module control intake valve (2), air bleeding valve (4) are closed, and negative pressure valve (7) is opened, and control air inlet fan (1) closing,
Vacuum pump (8) starts, into negative pressure reproduced state；
S7. under negative pressure reproduced state, vacuum pump (8) extracts the air in air purifying room (3), is produced in air purifying room (3)
Negative pressure is given birth to, the purification medium in air purifying room (3) receives negative pressure influence, releases the polluted gas of absorption and regenerated；
The polluted gas of release is discharged into through vacuum pump (8) in waste gas collection box (9)；
S7. negative pressure reproduced state reach setting time after, return to step S1, control device control again air cleaning unit into
Enter air purification state.
8. a kind of air purification medium based on switching time according to claim 7 replaces the controlling party of system for prompting
Method, it is characterised in that：The step S3 includes following sub-step：
S301. the content of nitrogen dioxide before polluted gas detection module one (5) detection purification in real timeSulfur dioxide concentration
And ozone concentrationIt is transferred to control module；
S302. polluted gas detection module two (6) detects purified content of nitrogen dioxide in real timeSulfur dioxide concentration
And ozone concentrationIt is transferred to control module；
S303. control module calculates the purifying rate of nitrogen dioxide
S304. control module calculates the purifying rate of sulfur dioxide
S305. control module calculates the purifying rate of ozone
S305. control module according toWithIt is weighted, obtains air purification rate μ：
In formula, α1Indicate the weight of nitrogen dioxide purifying rate, α2Indicate purging sulfur dioxide rate weight, α3Indicate ozone purification rate
Weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089616.9A CN108626862A (en) | 2018-01-30 | 2018-01-30 | A kind of air purification medium replacement system for prompting and method based on switching time |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810089616.9A CN108626862A (en) | 2018-01-30 | 2018-01-30 | A kind of air purification medium replacement system for prompting and method based on switching time |
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| CN108626862A true CN108626862A (en) | 2018-10-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2341561A (en) * | 1998-09-17 | 2000-03-22 | Johnson Matthey Plc | Hydrogen purifier |
| CN101596390A (en) * | 2008-06-06 | 2009-12-09 | 唐忠联 | Air cleaning unit |
| 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 |
| CN204389331U (en) * | 2015-02-13 | 2015-06-10 | 中国矿业大学 | The simple and easy adsorption/desorption device of use for laboratory |
| 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 CN201810089616.9A patent/CN108626862A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2341561A (en) * | 1998-09-17 | 2000-03-22 | Johnson Matthey Plc | Hydrogen purifier |
| CN101596390A (en) * | 2008-06-06 | 2009-12-09 | 唐忠联 | Air cleaning unit |
| 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 |
| CN204389331U (en) * | 2015-02-13 | 2015-06-10 | 中国矿业大学 | The simple and easy adsorption/desorption device of use for laboratory |
| CN107398142A (en) * | 2017-08-21 | 2017-11-28 | 青岛大学 | A kind of air cleaning facility of filter core free of replacement |
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Application publication date: 20181009 |
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