CN203657087U - Air purification device - Google Patents

Air purification device Download PDF

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Publication number
CN203657087U
CN203657087U CN201320414544.3U CN201320414544U CN203657087U CN 203657087 U CN203657087 U CN 203657087U CN 201320414544 U CN201320414544 U CN 201320414544U CN 203657087 U CN203657087 U CN 203657087U
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air
filter
unit
detector
cleaning unit
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CN201320414544.3U
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Chinese (zh)
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关玉园
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Abstract

The utility model relates to an air purification device, particularly to an air purification device applied to a data center machine room. According to the air purification device, a physical filtration and chemical filtration combined filtration method is adopted; a gas sensor is adopted to monitor the concentration of pollutants in the air in real time; a central processing and control unit generates 4-20 mA of current signals or 0-10 V of voltage signals to be sent to a controller of a fan according to received pollutant concentration signals and adjusts the rotating speed of the fan dynamically and in real time; and meanwhile, the central processing and control unit uploads data detected by a pollutant degree detector and a temperature and humidity detector to a remote monitoring terminal through a communication interface, generates radar maps of temperature, humidity and corrosion classes, analyzes the effect on equipment, tracks the corrosion variation trend, masters corrosion risks in advance, publishes corrosion warnings to take measures to eliminate hidden dangers and assigns specific filtration schemes in combination with ambient air, so that the purification device can operate efficiently in an energy-saving manner.

Description

A kind of air cleaning unit
Technical field
The utility model relates to a kind of air cleaning unit, especially a kind of air cleaning unit for data center machine room.
Background technology
Current, along with the continuous deterioration of surrounding air, in air, poisonous and harmful substances concentration constantly increases, when human body is caused to damage, these poisonous and harmful substances are also at the electronic equipment corroding in data center machine room, affect the normal operation of these equipment, cause the serious problems such as loss of data, service disruption.Airborne poisonous and harmful substances mainly comprises sour gas, as hydrogen sulfide, sulphur, nitrogen oxide, chlorine and hydrogen fluoride etc.; Alkaline corrosion gas, as ammonia; Oxidizing gas, as ozone.In these gases, what need most special concern is sour gas.In the last few years, along with the fast development of internet and IT industry, the various types of data that produce are more and more, also increasing to the demand of data storage, the quantity of data center is also in amplification rapidly, and the economically developed city such as large-scale data center is built in large size city conventionally, such as Beijing, the air pollution degree in these cities is very high, also larger to the threat of data center.Meanwhile, along with the miniaturization increasingly of information technoloy equipment, machine room air cooling equipment power is increasing, and high radiating effect and a large amount of Air Flows have strengthened the diffuses flow of gaseous contaminant; In addition, present information technoloy equipment requires to adopt unleaded welding and surface mount manufacturing process to manufacture, and information technoloy equipment is more easily corroded, and therefore, gaseous contaminant is to data center's safety, operation causes very large threat reliably.The impact that air pollutants are caused data center apparatus is mainly divided three classes: chemical affect, mechanical influence and electricity impact.Silver-plated corrosion in copper creep corrosion and small-sized surface mount component in circuit board is two kinds of common chemical failures.Mechanical influence comprises fin pollution, optical signal interference, frictional force increase etc.Electricity impact comprises the variation of circuit impedance and electric arc etc.The miniaturization of information technoloy equipment circuit board feature size makes hardware more easily be subject to pollutant effects.
Utility model content
Threat for current pollutants in air to data center apparatus, the utility model proposes a kind of air cleaning unit, and it is particularly useful for the air in data center machine room to purify.
Air cleaning unit of the present utility model comprises housing, with the return air inlet of deflector, with the air outlet of deflector, humiture detector, first pollution degree detector, the second dustiness detector, acoustic material, access door, maintenance track groove, central processing control unit, display unit, blower fan, base plate, differential pressure pickup, the first roughing efficiency air filter, the second roughing efficiency air filter, medium effeciency filter, chemical filtering unit, power connection, shifting roller, wherein: be arranged on housing below with the return air inlet of deflector, return air to be clean enters purifier thus, humiture detector and first pollution degree detector are arranged on the porch of return air inlet, be respectively used to detect the humiture of return air and the pollutant levels of entrance, and generate temperature-humidity signal and entrance pollutant levels signal, described temperature-humidity signal and entrance pollutant levels signal are sent into central processing control unit, the second dustiness detector is arranged on air outlet place, for detection of the pollutant levels of air-supply, and generates outlet pollutant levels signal, and described pollutant levels signal is sent into central processing control unit, acoustic material is arranged on the medial surface of housing, the noise producing for eliminating mechanical shock, access door and maintenance track groove are positioned in the middle of housing, facilitate staff to overhaul and change filtering material, display unit is positioned at the position of housing upper middle, and it is highly suitable for staff and observes, central processing control unit is positioned at the rear of display unit, and it is connected and can be connected by communication interface with remote monitoring terminal or miscellaneous equipment with parts communications such as humiture detector, dustiness detector, blower fans, be positioned at the top of housing with the air outlet of deflector, for the air after purifying is sent, bottom at housing is provided with shifting roller, facilitates the movement of housing, is also provided with power connection in back side of shell bottom simultaneously, the first roughing efficiency air filter is arranged on the top of the return air inlet with deflector, for filtering out the pollutant that particle is larger, chemical filtering unit is below played a protective role, above the first roughing efficiency air filter, be provided with chemical filtering unit, for harmful, peculiar smell and the corrosive gas of filtered air, the second roughing efficiency air filter is set above chemical filtering unit, for filtering the particle of taking out of from chemical filtering unit, above the second roughing efficiency air filter, be provided with medium effeciency filter, for further removing finely ground particles, medium effeciency filter top is provided with differential pressure pickup, measures the pressure reduction of return air inlet and air outlet, for judging whether filter stops up, and testing result is uploaded to central processing control unit whether needs to change filter with prompting, medium effeciency filter top is provided with blower fan, and blower fan has blower fan is fixed on to the base plate on housing, and base plate has damping device, in central processing control unit, be provided with the multi-level pollutant levels control requirements such as G1, G2, G3, GX, the signal detecting according to dustiness detector is determined pollutant levels grade, and convert thereof into the current signal of 4-20mA or the voltage signal of O-10V is exported to controller of fan in real time, thereby regulate rotation speed of fan that air output is realized in real time and being regulated, reach best purification effect, display unit is provided with multistage cryptoguard, can prevent maloperation, can show simultaneously, set the different class of pollution, records running time and the running status of each parts, and has sound and light alarm, the pollution grade in prompting space, display unit also disposes the communication monitor-interface of standard, provides the communication protocol of standard to communicate by letter with miscellaneous equipment, central processing control unit can be realized automatic protection, after power-off, can preserve operational factor and alarm logging, there is switch between master and slave machines function, equipment timing taking turn function flexibly, open many equipment networkings team control function, easily remote on-off and the management functions such as number of units and remote alarm and inquiry and remote failure according to dustiness concentration automatic adjustment equipment and process and noise elimination function, central processing control unit is by dustiness detector, the dustiness of humiture detector Real-Time Monitoring machine room, humiture and main etchant gas composition, and analyze their corrosion impact degree to equipment, by communication interface by dustiness detector, the data upload that humiture detector detects generates temperature to remote monitoring platform, relative humidity and corrosion level radar map, analyze its impact on equipment, and tracking corrosion rate of change trend, grasp corrosion risk, issue corrosion early warning to take measures in advance to remove hidden danger, and combining environmental air is formulated concrete filtering scheme, make the energy-efficient operation of purifier, as alarm conditions, center-control processing unit can also pass through the mode notification data center O&M personnel such as note, mail, and user can pre-define burn into temperature, the isoparametric warning value of humidity.
Air cleaning unit of the present utility model, wherein said dustiness detector is gas sensor.
Air cleaning unit of the present utility model, wherein said gas sensor is Metal Oxide Gas Sensors.
Air cleaning unit of the present utility model, wherein said metal oxide is tungstic acid or zinc oxide.
Air cleaning unit of the present utility model, the filtering material that wherein said chemical filtering unit adopts is the particle that the permanganate solution dipping substrate formed particle of activated alumina or potassium hydroxide Immesion active carbon form.
Air cleaning unit of the present utility model, wherein said chemical filtering unit is one-level, two-stage or multistage, wherein every one-level by a group or more " V " shape, fall " V " shape, " one " shape or "/" shape chemical filtering material and form.
Air cleaning unit of the present utility model, wherein said first, second roughing efficiency air filter is the flat filter that nonwoven forms, medium effeciency filter is the flat filter that synthetic fibers form.
Air cleaning unit of the present utility model, wherein air cleaning unit is vertical or horizontal type structure.
Air cleaning unit of the present utility model, wherein blower fan adopts blower fan or the EC blower fan with frequency converter.
According to above-mentioned utility model content, air cleaning unit tool of the present utility model has the following advantages:
1, the purification style that adopts physical absorption and chemical filtering to engage purifies air, effectively remove the gas of various pollutant components in air and remove poisonous, harmful and smell substance, and the mode that both combine can strengthen filter capacity; The particle that the permanganate solution dipping substrate formed particle of activated alumina or potassium hydroxide Immesion active carbon form, it is all efficient filtering material, have both physical absorption and chemical reaction purification function, and different filter element structures can meet the demand of varying environment pollution concentration;
2, adopt gas sensor to replace traditional copper sheet, silver strip, detect in real time the concentration of pollutants in air, testing result more accurately, fast, can realize rotation speed of fan is carried out to dynamic adjustments simultaneously, and Energy Efficiency Ratio reaches optimization;
3, adopt EC blower fan or the blower fan with frequency converter, central processing control unit and humiture, dustiness detector link mutually, control in real time rotation speed of fan according to the difference of pollutant levels grade, in meeting purification requirement, minimum energy losses, adjusting is simultaneously more flexible, more accurate to the control of dustiness concentration;
4, existing purifier all works independently conventionally, and central processing control unit of the present utility model possesses switch between master and slave machines function, equipment timing taking turn function flexibly, open many equipment networkings team control functions such as number of units according to dustiness concentration automatic adjustment equipment and possess communication interface, can be connected with remote monitoring terminal, there is remote on-off and management function and remote alarm and inquiry and remote failure processing and noise elimination function easily.
5, the programme of work of existing purifier and pattern are normally fixed, and after setting, blower fan, with constant rotating speed operation, is processed air.In the time that pollutants in air concentration raises suddenly, cannot meet purification requirement, cause pollutants in air concentration over-standard, equipment and personnel are caused damage; In the time that pollutants in air concentration is very low, still with original rotating speed operation, waste electric energy, the service life of reducing blower fan.The data upload that central processing control unit of the present utility model detects dustiness detector, humiture detector by communication interface is to remote monitoring terminal, generate the radar map of temperature, humidity and corrosion level, analyze its impact on equipment, and tracking corrosion variation tendency, grasp in advance corrosion risk, issue corrosion early warning to take measures in advance to remove hidden danger, and combining environmental air specifies concrete filtering scheme, make purifier realize efficient energy-saving operation; Meanwhile, as alarm conditions, can pass through the mode notification data center O&M personnel such as note, mail, process in time.
Accompanying drawing explanation
Fig. 1 is the structural representation of air cleaning unit of the present utility model.
Fig. 2 is the air-supply design sketch of air cleaning unit of the present utility model.
Fig. 3 is the filtering process figure of air cleaning unit of the present utility model.
Fig. 4 is the air-blower control schematic diagram of air cleaning unit of the present utility model.
The Long-distance Control frame diagram of Fig. 5 air cleaning unit of the present utility model.
Fig. 6 is that air cleaning unit of the present utility model adopts the structural representation sending under last time.
The specific embodiment
Fig. 1 is the schematic diagram that air cleaning unit of the present utility model adopts lower return air, upper air-supply structure.Air cleaning unit of the present utility model has double casing body 1, be positioned at the return air inlet with deflector 2 of housing 1 below, be positioned at the air outlet with deflector 3 of housing top, be arranged on humiture detector 4 and the first pollution degree detector 5 of the entrance of return air inlet 2, the first roughing efficiency air filter 6, be positioned at the chemical filtering unit 7 of the first roughing efficiency air filter 6 tops, be positioned at the second roughing efficiency air filter 8 and the medium effeciency filter 9 of 7 tops, chemical filtering unit, be arranged on the second dustiness detector 10 and the differential pressure pickup 11 of the outlet of medium effeciency filter 9, wherein differential pressure pickup 11 roles are to detect the pressure reduction of return air and air-supply, whether prompting and filtering unit stops up or need is changed, what the differential pressure pickup shown in Fig. 1 was measured is the pressure reduction between return air inlet and air outlet, also can entering at each filter element, outlet arranges respectively differential pressure pickup maybe to be needed to change to judge exactly whether each filter element stops up, on housing top, air outlet inner side is provided with blower fan 12, the proper height position of the front panel of housing 1 arranges display unit 13 and access door 14 and maintenance track groove 15, access door and maintenance track groove 15 are for convenient for maintaining and change filtering material.Be provided with central processing control unit 16 in enclosure interior, shifting roller 17 be set and at back side of shell, power connection 18 be set in housing 1 bottom.
Fig. 2 is the powered air-purifying design sketch of air cleaning unit of the present utility model, wherein, contain sulfide SOx in inlet side, nitrogen oxide N0x, benzene, formaldehyde, ozone, ammonia NH3, volatile organic matters etc. are poisonous, air harmful and gas with foreign flavor enters the inside of housing 1 under the swabbing action of blower fan by the return air inlet 1 with deflector, during through the first roughing efficiency air filter 6, filter out the larger pollutant of particle in return air, the first roughing efficiency air filter 6 plays a protective role to chemical filtering unit below, it can be the flat filter that nonwoven forms, also can adopt other suitable flat filter.Return air enters chemical filtering unit 7 after through the first roughing efficiency air filter 6; chemical filtering unit 7 is as the core component of purifier; for removing various poisonous, the harmful and gas with foreign flavor of return air; it can be one-level, two-stage or multistage; wherein every one-level can by a group or more " V " shape, fall " V " shape, " shape or "/" shape chemical filtering material forms, and chemical filtering material can be the permanganate solution dipping substrate formed particle of activated alumina or the particle of potassium hydroxide Immesion active carbon formation or the combination of the two.From chemical filtering unit 7, return air air out enters the second roughing efficiency air filter 8 and medium effeciency filter 9, the particle that the second roughing efficiency air filter 8 is taken out of for filtering out chemical filtering unit, similar with the first roughing efficiency air filter 6, it can be the flat filter that nonwoven forms, and also can adopt other suitable flat filter; Medium effeciency filter 9 is for further removing finely ground particles, and it can be the flat filter that synthetic fibers form, and also can adopt other suitable filter.Finally, after multi-filtering, reach the return air of clean-up effect, by being sent in machine room space with the air outlet of deflector.
Fig. 3 is filtering process figure of the present utility model, has specifically illustrated principle, the reaction of generation and the concrete dusty gas of removal of multi-filtering.Wherein, the first heavy filtration is primary filter, and its flat filter that adopts nonwoven to form is removed the larger pollutant such as pellet, dust in return air, protection filter element below.The chemical filtering material that the second heavy filtration is chosen is the permanganate solution dipping substrate formed particle of activated alumina or the particle of potassium hydroxide Immesion active carbon formation or the combination of the two.Because activated alumina and active carbon are porous media, therefore, second heavy filtration has here comprised in fact the combination of physical absorption and chemisorbed, wherein, physical absorption mainly adopts the porous media such as activated alumina or active carbon to adsorb, the preliminary pollutant of removing in return air, for example S0 2, NO x, the material such as ozone, formaldehyde; The structure of chemical filtering unit can be one-level, two-stage or multistage as mentioned above, wherein every one-level by a group or more " V " shape, fall " V " shape, " one " shape or "/" shape chemical filtering material and form, the concrete chemical reaction cardinal principle occurring in chemisorbed process is as follows:
S0 2+Mn0 4 2-=S0 4 2--Mn0 2
3NO+2Mn0 4 2-=N02+2Mn0 2+20H -
3N0 2+2H 20=2HN0 3+NO+H 20
HN0 3+KOH=KN0 3+H 20
Triple filter comprises primarily efficient filter and medium air filtration, and wherein primarily efficient filter is removed the particle of taking out of from chemical filtering unit, and medium air filtration is for further removing finely ground particles; Roughing efficiency air filter is the flat filter that nonwoven forms, and medium effeciency filter is the flat filter that synthetic fibers form.Certainly, also can adopt other suitable filter.
Fig. 4 is air-blower control schematic diagram of the present utility model, the blower fan that the utility model uses can be for example EC blower fan or the common blower fan with frequency converter, EC blower fan can directly be connected with central processing control unit, and the blower fan with frequency converter is that frequency converter is connected with central processing control unit; The pollutant levels sensor that the utility model uses can be gas sensor, for example tungstic acid, the Metal Oxide Gas Sensors such as zinc oxide, gas sensor is a kind of Real-Time Monitoring sensor, with respect to the method for traditional placement copper sheet or silver strip collection pollutant levels signal, possess the advantages such as real-time, accurate, quick.Wherein, the concentration of the various pollutants that are arranged on humiture to return air of the humiture detector 4 of return air inlet 1 entrance and first pollution degree detector 5 and comprise detects and generates temperature-humidity signal and return air pollutant levels signal, the the second dustiness detector 10 that is arranged on air outlet detects and generates air-supply pollutant levels signal to pollutant levels in air-supply, by described humiture and return, air-supply pollutant levels signal is sent into central processing control unit, and in central processing control unit, be provided with G1, G2, G3, the multi-level pollutant levels control such as GX requirement, wherein G1, G2, G3, the multi-level pollutant levels standard such as GX is shown in following table.
The pollutant levels signal that central processing control unit detects according to dustiness detector and humiture detector
Determine and on display unit, show the pollutant levels grade of return air, and will determine with temperature-humidity signal
Return air pollutant levels grade change, generate the current signal of 4-20mA or the voltage of O-10V letter
Number export in real time the frequency converter of EC controller of fan or common blower fan, thereby regulate rotation speed of fan to air output
Realize in real time and regulating, reach best purification effect.Display unit is provided with multistage cryptoguard, can prevent
Maloperation, can show simultaneously, set the different class of pollution, records running time and the operation of each parts
State, and there is sound and light alarm, the pollution grade in prompting space; Central control unit also disposes mark
Accurate communication monitor-interface, provides the communication protocol of standard to communicate by letter with miscellaneous equipment.
Table 1 pollutant levels grade separation
Figure DEST_PATH_GSB0000122773710000091
Fig. 5 is the Long-distance Control frame diagram of air cleaning unit of the present utility model.Wherein the center-control processing unit of purifier is connected with remote monitoring terminal, center-control processing unit is by humiture detector, the main etchant gas composition of the first and second dustiness detector Real-Time Monitoring machine rooms, dustiness and humiture, and comprehensively analyze their corrosion impact degree to equipment, by communication interface by dustiness detector, the data upload that humiture detector detects is to remote monitoring terminal, generate temperature, the radar map of humidity and corrosion level, analyze its impact on equipment, and tracking corrosion variation tendency, grasp in advance corrosion risk, issue corrosion early warning to take measures in advance to remove hidden danger, and combining environmental air is specified concrete filtering scheme, make purifier realize efficient energy-saving operation, as alarm conditions, can pass through the mode notification data center O&M personnel such as note, mail, the alarm conditions such as burn into temperature, humidity can pre-define.
Fig. 6 is another embodiment of air cleaning unit of the present utility model, and it adopts the endless form of return air, lower air-supply, and other structure is identical with the air cleaning unit of Fig. 1, and just arrangement is contrary with it.In like manner, it may occur to persons skilled in the art that and can also adopt top to send next time, under last time, send; at the bottom of last time, send; push up go back to the end and send, return a side the multiple endless form such as to send, and adopt within the air cleaning unit of these endless form is positioned at the utility model spirit and claimed scope equally.
Although description of the present utility model is take data center machine room as example, but for a person skilled in the art, air cleaning unit of the present utility model also can be applied to other occasion, for example the occasion of paper mill, textile mills, chemical plant, Semiconductor enterprises, museum, archives, market, office buildings, residential housing etc. enriching pollutants.

Claims (9)

1. an air cleaning unit, it comprises housing, with the return air inlet of deflector, with the air outlet of deflector, humiture detector, first pollution degree detector, the second dustiness detector, acoustic material, access door, maintenance track groove, central processing control unit, display unit, blower fan, base plate, differential pressure pickup, the first roughing efficiency air filter, the second roughing efficiency air filter, medium effeciency filter, chemical filtering unit, power connection, shifting roller, wherein: be arranged on housing below with the return air inlet of deflector, return air to be clean enters purifier thus, humiture detector and first pollution degree detector are arranged on the porch of return air inlet, be respectively used to detect the humiture of return air and the pollutant levels of entrance, and generate temperature-humidity signal and entrance pollutant levels signal, described temperature-humidity signal and entrance pollutant levels signal are sent into central processing control unit, the second dustiness detector is arranged on air outlet place, for detection of the pollutant levels of air-supply, and generates outlet pollutant levels signal, and described pollutant levels signal is sent into central processing control unit, acoustic material is arranged on the medial surface of housing, the noise producing for eliminating mechanical shock, access door and maintenance track groove are positioned in the middle of housing, facilitate staff to overhaul and change filtering material, display unit is positioned at the position of housing upper middle, and it is highly suitable for staff and observes, central processing control unit is positioned at the rear of display unit, and it is connected and is connected by communication interface with remote monitoring terminal or miscellaneous equipment with humiture detector, first, second dustiness detector, blower fan communication, be positioned at the top of housing with the air outlet of deflector, for the air after purifying is sent, bottom at housing is provided with shifting roller, facilitates the movement of housing, is also provided with power connection in back side of shell bottom simultaneously, the first roughing efficiency air filter is arranged on the top of the return air inlet with deflector, for filtering out the pollutant that particle is larger, chemical filtering unit is below played a protective role, above the first roughing efficiency air filter, be provided with chemical filtering unit, for the dusty gas of filtered air, the second roughing efficiency air filter is set above chemical filtering unit, for filtering the particle of taking out of from chemical filtering unit, above the second roughing efficiency air filter, be provided with medium effeciency filter, for further removing finely ground particles, medium effeciency filter top is provided with differential pressure pickup, measures the pressure reduction of return air inlet and air outlet, for judging whether filter stops up, and testing result is uploaded to central processing control unit whether needs to change filter with prompting, medium effeciency filter top is provided with blower fan, and blower fan has blower fan is fixed on to the base plate on housing, and base plate has damping device.
2. air cleaning unit as claimed in claim 1, wherein said dustiness detector is gas sensor.
3. air cleaning unit as claimed in claim 2, wherein said gas sensor is Metal Oxide Gas Sensors.
4. air cleaning unit as claimed in claim 3, wherein said metal oxide is tungstic acid or zinc oxide.
5. air cleaning unit as claimed in claim 1, the filtering material that wherein said chemical filtering unit adopts is the particle that the permanganate solution dipping substrate formed particle of activated alumina or potassium hydroxide solution Immesion active carbon form.
6. air cleaning unit as claimed in claim 1, wherein said chemical filtering unit is one-level, two-stage or multistage, wherein every one-level by a group or more " V " shape, fall " V " shape, " one " shape or "/" shape chemical filtering material and form.
7. air cleaning unit as claimed in claim 1, wherein said first, second roughing efficiency air filter is the flat filter that nonwoven forms, medium effeciency filter is the flat filter that synthetic fibers form.
8. air cleaning unit as claimed in claim 1, wherein air cleaning unit is vertical or horizontal type structure.
9. air cleaning unit as claimed in claim 1, wherein blower fan adopts blower fan or the EC blower fan with frequency converter.
CN201320414544.3U 2013-07-12 2013-07-12 Air purification device Expired - Fee Related CN203657087U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104436884A (en) * 2014-08-12 2015-03-25 苏州悠远环境科技有限公司 Self-circulation chemical air filtering method and filtering equipment thereof
CN104841227A (en) * 2015-04-29 2015-08-19 刘丽娟 Household air purifier and purification and regeneration process thereof
CN106377973A (en) * 2016-08-31 2017-02-08 霍普科技(天津)股份有限公司 Miniature modularization active carbon purifier
CN104235957B (en) * 2014-10-14 2017-02-15 北京恒泰实达科技股份有限公司 Indoor air purification system and method
EP3623035A1 (en) * 2018-09-13 2020-03-18 Chih-Hui Su Gas purifying apparatus
CN114017883A (en) * 2021-11-03 2022-02-08 爱优特空气技术(上海)有限公司 Intelligent purification device and method for air in tunnel
CN114699902A (en) * 2022-04-26 2022-07-05 韩瑞端 High-efficient air adsorption deodorization integration equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104436884A (en) * 2014-08-12 2015-03-25 苏州悠远环境科技有限公司 Self-circulation chemical air filtering method and filtering equipment thereof
CN104235957B (en) * 2014-10-14 2017-02-15 北京恒泰实达科技股份有限公司 Indoor air purification system and method
CN104841227A (en) * 2015-04-29 2015-08-19 刘丽娟 Household air purifier and purification and regeneration process thereof
CN104841227B (en) * 2015-04-29 2016-09-14 四川特空科技有限公司 A kind of Household Air Purifier and purifying regeneration technique thereof
CN106377973A (en) * 2016-08-31 2017-02-08 霍普科技(天津)股份有限公司 Miniature modularization active carbon purifier
EP3623035A1 (en) * 2018-09-13 2020-03-18 Chih-Hui Su Gas purifying apparatus
CN114017883A (en) * 2021-11-03 2022-02-08 爱优特空气技术(上海)有限公司 Intelligent purification device and method for air in tunnel
CN114699902A (en) * 2022-04-26 2022-07-05 韩瑞端 High-efficient air adsorption deodorization integration equipment

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Granted publication date: 20140618

CX01 Expiry of patent term
CU01 Correction of utility model

Correction item: Termination upon expiration of patent

Correct: Revocation of Patent Expiration and Termination

False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent

Number: 30-02

Volume: 39

CU01 Correction of utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140618