CN204799049U - Wet process micron order particulate matter entrapment air purification device - Google Patents
Wet process micron order particulate matter entrapment air purification device Download PDFInfo
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- CN204799049U CN204799049U CN201520325320.4U CN201520325320U CN204799049U CN 204799049 U CN204799049 U CN 204799049U CN 201520325320 U CN201520325320 U CN 201520325320U CN 204799049 U CN204799049 U CN 204799049U
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- venturi scrubber
- purification
- micron particles
- water tank
- particles thing
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004887 air purification Methods 0.000 title abstract description 4
- 230000008569 process Effects 0.000 title abstract description 4
- 239000013618 particulate matter Substances 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000000746 purification Methods 0.000 claims abstract description 50
- 239000007921 spray Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims description 27
- 238000005507 spraying Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 11
- 230000030279 gene silencing Effects 0.000 claims description 10
- 230000001954 sterilising effect Effects 0.000 claims description 9
- 238000004659 sterilization and disinfection Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000001473 noxious effect Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010297 mechanical methods and process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011430 maximum method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 201000008827 tuberculosis Diseases 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Separation Of Particles Using Liquids (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a wet process micron order particulate matter entrapment air purification device, including one -level purifier and secondary spray set, one -level purifier and secondary spray set bottom are equipped with purification water tank respectively and spray the basin, purification water tank with spray basin top and be equipped with intercommunication one -level purifier and secondary spray set's gas passage, purification water tank with basin accessible gas passage intercommunication sprays, one -level purifier includes the venturi group that comprises at least 4 the parallelly connected venturi scrubber that assemble, secondary spray set includes tubular liquid distributor, it is equipped with the silence water pump in the basin to spray, it is continuous with nozzle and tubular liquid distributor above the venturi scrubber that the silence water pump passes through the pipeline, the utility model discloses a purifier is efficient, and the energy consumption is low, long service life.
Description
Technical field
The utility model relates to a kind of air cleaning unit, particularly a kind of air cleaning unit for enclosure space trapping micron particles thing.
Background technology
Along with industrial expansion, urban population intensive, coal and oil-firedly to increase rapidly, the quality of air worsens increasingly, and atmosphere pollution has become one of principal element of harm world environments and human health.In recent years, particulate pollutant in air is the main reason causing haze, serious threat is caused to the harmonious development of health, ecological environment, economy and society, and the gesture that oriented multiple cities large area spreads, wherein micron particles thing endangers a maximum class.
Micron particles thing refers to that diameter reaches the particle suspended in the air of micron level, and being also called can suction-type particle.Pellet can become the carrier of many poisonous and harmful substances in air; Can be accumulated in respiratory system after being sucked by human body, cardiac trigger disease, tuberculosis, RD, reduce cardio-pulmonary function etc., serious harm is produced to the respiratory system, nervous system etc. of people, and the impact that there is carcinogenic, mutagenesis, disable.In addition, in the Workplaces such as precision instrument, electronics, fine chemistry industry, the precision of particulate pollutant meeting lowering apparatus and service life; Also can cause instrument internal fault, time serious, can production accident be caused.
At present, the purification techniques solving room air pollution can be divided into Mechanical Method, Physical and chemical method.
One, Mechanical Method comprises filtering technique, active carbon adsorption technology etc.The maximum method of current use is filtering technique, there is inborn deficiency in filtering technique, all purification work has all been come by filter screen, early stage compares more efficient when using, but along with the prolongation of service time, the resistance of screen pack progressively increases, the index such as energy consumption, noise is caused to raise, the replacement cycle of filter screen is short, and expensive; Active carbon adsorption technology is divided into physical absorption and chemisorbed, all there is certain saturation problem, and the pollutant adsorbed may dissociate out, causes secondary pollution.
Two, Physical comprises electrostatic precipitation technology, anion technology, low temperature asymmetric plasma technology etc.The active ion that above method produces is unstable and easily produce ozone, produces certain harm, therefore can not work long hours to human body.And electrostatic precipitation and anion technology can not remove the pernicious gas such as formaldehyde, benzene, dedusting and sterilizing efficiency lower; Low temperature asymmetric plasma technology can not remove the micron particles thing in air well.
Three, chemical method mainly refers to photocatalysis purifying technology.Its shortcoming to solve the suspended particulate substance or micron particles thing that exist in room air; Catalyst micropore is easily caused catalysqt deactivation by the blocking such as dust and particle simultaneously, and concentration reduces, and degradation speed also declines thereupon.
On current market, the air purifier of main brand belongs to filtration net type mostly, the form of filter screen differs, but price all costly, if use under the haze weather that air quality is poor, the actual replacement cycle of major part clarifier filter screen was about less than 6 months, change comparatively frequent, cost performance is lower.Many clarifiers are can high-efficient purification air within certain service time, but due to the impact of particulate in air after long-term work, the purification efficiency of screen pack obviously declines, and the clean-up effect of clarifier is then had a greatly reduced quality.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of wet method micron particles thing traps air purifier, to reach the object improving purification efficiency, the running cost that increases the service life, reduces.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of wet method micron particles thing traps air purifier, comprise first class purification device and secondary spraying device, described first class purification device and secondary spraying bottom of device are respectively equipped with purification water tank and spray tank, described purification water tank is provided with above spray tank the gas passage being communicated with first class purification device and secondary spraying device, described purification water tank is communicated with by gas passage with spray tank, described first class purification device comprises the Venturi tube group be made up of the Venturi scrubber of at least 4 assembled in parallel, described secondary spraying device comprises tubular liquid distributor, silencing water pump is provided with in described spray tank, described silencing water pump is connected with the nozzle above Venturi scrubber and tubular liquid distributor by pipeline.
Preferably, described first class purification device also comprises the air-supply arrangement be located at above described Venturi scrubber, and air to be clean is sent into first class purification device and purified by air-supply arrangement.
In further technical scheme, described secondary spraying device also comprises the wire mesh demister, ultraviolet sterilization apparatus and the multi-functional filter material that are set in turn in above described tubular liquid distributor, the air through Venturi scrubber and tubular liquid distributor is dehumidified further, sterilization, elimination formaldehyde, the noxious material such as benzene.
Further, in described purification water tank, be provided with turbidity measuring appliance, the turbidity in purification water tank can be detected, to change clean running water in time.
Further, in described spray tank, be also provided with fluid level measuring gauge, the water level in spray tank can be measured, according to circumstances to the running water that supply in device is appropriate.
Further in technical scheme, the nozzle above described silencing water pump and Venturi scrubber and the pipeline between tubular liquid distributor are equipped with pressure flow control device, control the hydraulic pressure size of spraying according to actual needs.
Pass through technique scheme, the Venturi tube group that air to be clean consists of multiple Venturi scrubber can be carried out purified treatment by the wet method micron particles thing traps air purifier that the utility model provides, air after process is again through the spray process of tubular liquid distributor, then through the cleaning of multistage filter screen, clean air is finally obtained.
Strap-on version is adopted, by multiple undersized Venturi scrubber assembled in parallel together during Venturi scrubber design.When gas treatment amount is identical, multiple Venturi scrubber can be averaging processing total gas flow, then the treating capacity of single Venturi scrubber can reduce corresponding multiple, and its physical dimension is also just corresponding to be reduced, and decreases the engineering enlarge-effect of unimodule; Meanwhile, the pressure loss of Venturi scrubber also can reduce accordingly, reduces the energy resource consumption of power supply device.This device can trap the micron particles thing that diameter is more than 0.5 μm, and under the prerequisite that air purification efficiency is identical with Venturi scrubber physical dimension, parallel combination, compared with single-piece Venturi scrubber, can increase treating capacity again, increase work efficiency.
Meanwhile, use running water as absorbent, can regulable control air humidity, and running water recycles, and within 4-5 days, changes once, low price, energy-conserving and environment-protective.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is the structural representation of the wet method micron particles thing traps air purifier disclosed in the utility model embodiment;
Fig. 2 is the structural representation of the Venturi tube group disclosed in the utility model embodiment;
Fig. 3 is the top view of Fig. 2.
Wherein, 1, air-supply arrangement; 2, Venturi scrubber; 3, purification water tank; 4, turbidity measuring appliance; 5, fluid level measuring gauge; 6, silencing water pump; 7, tank is sprayed; 8, tubular liquid distributor; 9, pressure flow control device; 10, wire mesh demister; 11, ultraviolet sterilization apparatus; 12, multi-functional filter material; 13, nozzle.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
The utility model provides a kind of wet method micron particles thing traps air purifier, device as shown in Figure 1, this device, by the purification of first class purification device A and secondary spraying device B, alleviates the burden of multi-functional filter material, service life extends, and improves economic benefit.
Wet method micron particles thing traps air purifier as shown in Figure 1, comprise first class purification device A and secondary spraying device B, purification water tank 3 and spray tank 7 is respectively equipped with bottom first class purification device A and secondary spraying device B, purification water tank 3 is provided with above spray tank 7 gas passage being communicated with first class purification device A and secondary spraying device B, after purification water tank 3 filled with water, water can overflow to spray tank 7 from top by gas passage.
The first class purification device A of the present embodiment comprises the Venturi tube group be made up of the Venturi scrubber 2 of 4 assembled in parallel, adopts strap-on assembling mode, referring to figs. 2 and 3.First class purification device A also comprises the air-supply arrangement 1 be located at above Venturi scrubber 2, and air-supply arrangement 1 provides power, air to be clean is sent into first class purification device A and purifies.
Secondary spraying device B comprises tubular liquid distributor 8, with the wire mesh demister 10 be set in turn in above tubular liquid distributor 8, ultraviolet sterilization apparatus 11 and multi-functional filter material 12, the air through Venturi scrubber 2 and tubular liquid distributor 8 is dehumidified further, sterilization, elimination formaldehyde, the noxious material such as benzene.
Be provided with silencing water pump 6 in spray tank 7, silencing water pump 6 is connected with the nozzle 13 above Venturi scrubber 2 and tubular liquid distributor 8 by pipeline, above-mentioned pipeline is equipped with pressure flow control device 9, controls the hydraulic pressure size of spraying according to actual needs.Also be provided with fluid level measuring gauge 5 in spray tank 7, the water level in spray tank 7 can be measured, according to circumstances to the running water that supply in device is appropriate.
Be provided with turbidity measuring appliance 4 in purification water tank 3, the turbidity in purification water tank 3 can be detected, to change clean running water in time.
Concrete processing procedure is as follows: pending air is sent in Venturi scrubber 2 by air-supply arrangement 1, simultaneously, nozzle 13 sprays the water from spray tank 7, gas atomizes water into fine drop at the aditus laryngis place of Venturi scrubber 2, and fully contact with it mixing to remove the micron particles thing in air, complete first class purification, the water after absorbing particles thing is collected by bottom purge tank 3; Completing the air after first class purification enters in secondary spraying device B through gas passage, secondary purification is carried out in the spraying formed by tubular liquid distributor 8, then dehumidify and ultraviolet sterilization apparatus 11 sterilization through wire mesh demister 10, then enter atmospheric environment after eliminating the noxious material such as formaldehyde, benzene by multi-functional filter material 12.
Meanwhile, the particle contained by water completing first class purification settles down in purification water tank 3, if the water of purification water tank 3 is collected completely, water is overflowed in spray tank 7 by gas passage.Turbidity measuring appliance 4 can measure the muddy degree of water in purification water tank 3, to change clean running water in time; Fluid level measuring gauge 5 can measure the water level in spray tank 7, according to circumstances to the running water that supply in device is appropriate.
Venturi scrubber 2 of the present utility model adopts strap-on version, by multiple undersized Venturi scrubber 2 assembled in parallel together.When gas treatment amount is identical, multiple Venturi scrubber 2 can be averaging processing total gas flow, then the treating capacity of single Venturi scrubber 2 can reduce corresponding multiple, and its physical dimension is also just corresponding to be reduced, and decreases the engineering enlarge-effect of unimodule; Meanwhile, the pressure loss of Venturi scrubber 2 also can reduce accordingly, reduces the energy resource consumption of power supply device.This device can trap the micron particles thing that diameter is more than 0.5 μm, and under the prerequisite that air purification efficiency is identical with Venturi scrubber 2 physical dimension, parallel combination, compared with single-piece Venturi scrubber 2, can increase treating capacity again, increase work efficiency.
This device realizes omnidistance purification mainly through physics mode, reasonable in design, and structure is simple, and practical cheap, efficiency is high, and energy consumption is low; The trapping part of device is that the disposable arresting efficiency of the micron particles thing of more than 0.5 μm can reach more than 95% to diameter in air; Compared with conventional purge procedures, substantially reduce the burden of multi-functional filter material 12 particulate matter, filter material can reach the 3-5 of common purifying device service life doubly, thus reduces replacement frequency, good stability, and cost performance is high, improves economic benefit; Adopt silencing water pump 6, noise control, at below 35db, can not produce noise pollution to people's normal life; Use running water as absorbent, can regulable control air humidity, and running water recycles, and within 4-5 days, changes once, low price, energy-conserving and environment-protective.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a wet method micron particles thing traps air purifier, comprise first class purification device and secondary spraying device, described first class purification device and secondary spraying bottom of device are respectively equipped with purification water tank and spray tank, described purification water tank is provided with above spray tank the gas passage being communicated with first class purification device and secondary spraying device, described purification water tank is communicated with by gas passage with spray tank, it is characterized in that, described first class purification device comprises the Venturi tube group be made up of the Venturi scrubber of at least 4 assembled in parallel, described secondary spraying device comprises tubular liquid distributor, silencing water pump is provided with in described spray tank, described silencing water pump is connected with the nozzle above Venturi scrubber and tubular liquid distributor by pipeline.
2. wet method micron particles thing traps air purifier according to claim 1, it is characterized in that, described first class purification device also comprises the air-supply arrangement be located at above described Venturi scrubber.
3. wet method micron particles thing traps air purifier according to claim 1, it is characterized in that, described secondary spraying device also comprises the wire mesh demister, ultraviolet sterilization apparatus and the multi-functional filter material that are set in turn in above described tubular liquid distributor.
4. wet method micron particles thing traps air purifier according to claim 1, is characterized in that, be provided with turbidity measuring appliance in described purification water tank.
5. wet method micron particles thing traps air purifier according to claim 1, is characterized in that, be also provided with fluid level measuring gauge in described spray tank.
6. wet method micron particles thing traps air purifier according to claim 1, is characterized in that, the nozzle above described silencing water pump and Venturi scrubber and the pipeline between tubular liquid distributor are equipped with pressure flow control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325320.4U CN204799049U (en) | 2015-05-19 | 2015-05-19 | Wet process micron order particulate matter entrapment air purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325320.4U CN204799049U (en) | 2015-05-19 | 2015-05-19 | Wet process micron order particulate matter entrapment air purification device |
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| Publication Number | Publication Date |
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| CN204799049U true CN204799049U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520325320.4U Expired - Fee Related CN204799049U (en) | 2015-05-19 | 2015-05-19 | Wet process micron order particulate matter entrapment air purification device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895999A (en) * | 2017-03-17 | 2017-06-27 | 华南师范大学 | A kind of rinsing type is without filter membrane sampling apparatus for atmospheric particulate matter |
| CN107824013A (en) * | 2017-12-05 | 2018-03-23 | 中国华电科工集团有限公司 | A kind of injection turbulent contact absorber |
| CN107854945A (en) * | 2017-12-05 | 2018-03-30 | 中国华电科工集团有限公司 | A kind of flue gas purification system |
| CN107952316A (en) * | 2016-10-17 | 2018-04-24 | 株式会社奥思伟 | Micronic dust remover without strainer |
| CN108295610A (en) * | 2018-04-10 | 2018-07-20 | 北京英华高科技有限公司 | A kind of novel type non-filtering air cleaning facility |
| CN108554085A (en) * | 2018-04-13 | 2018-09-21 | 蒋瑞璋 | A kind of air purification method and its purifier removed PM2.5 and realize indoor and outdoor air purification convection current |
| CN109603364A (en) * | 2018-11-07 | 2019-04-12 | 合肥图腾龙企业管理事务所（有限合伙） | A kind of indoor air removes haze purification device |
| CN110538546A (en) * | 2018-05-28 | 2019-12-06 | 上海米素环保科技有限公司 | method and device suitable for mixed multi-component gas treatment |
-
2015
- 2015-05-19 CN CN201520325320.4U patent/CN204799049U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952316A (en) * | 2016-10-17 | 2018-04-24 | 株式会社奥思伟 | Micronic dust remover without strainer |
| CN106895999A (en) * | 2017-03-17 | 2017-06-27 | 华南师范大学 | A kind of rinsing type is without filter membrane sampling apparatus for atmospheric particulate matter |
| CN107824013A (en) * | 2017-12-05 | 2018-03-23 | 中国华电科工集团有限公司 | A kind of injection turbulent contact absorber |
| CN107854945A (en) * | 2017-12-05 | 2018-03-30 | 中国华电科工集团有限公司 | A kind of flue gas purification system |
| CN108295610A (en) * | 2018-04-10 | 2018-07-20 | 北京英华高科技有限公司 | A kind of novel type non-filtering air cleaning facility |
| CN108295610B (en) * | 2018-04-10 | 2024-03-12 | 北京英华高科技有限公司 | Non-filtration formula air purification equipment |
| CN108554085A (en) * | 2018-04-13 | 2018-09-21 | 蒋瑞璋 | A kind of air purification method and its purifier removed PM2.5 and realize indoor and outdoor air purification convection current |
| CN110538546A (en) * | 2018-05-28 | 2019-12-06 | 上海米素环保科技有限公司 | method and device suitable for mixed multi-component gas treatment |
| CN109603364A (en) * | 2018-11-07 | 2019-04-12 | 合肥图腾龙企业管理事务所（有限合伙） | A kind of indoor air removes haze purification device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20151125 Termination date: 20170519 |