CN104474839B - Desorption regeneration device and desorption regeneration method of active carbon filter layer in air cleaning equipment - Google Patents
Desorption regeneration device and desorption regeneration method of active carbon filter layer in air cleaning equipment Download PDFInfo
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- CN104474839B CN104474839B CN201410650023.7A CN201410650023A CN104474839B CN 104474839 B CN104474839 B CN 104474839B CN 201410650023 A CN201410650023 A CN 201410650023A CN 104474839 B CN104474839 B CN 104474839B
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Abstract
The present invention discloses a desorption regeneration device and a desorption regeneration method of an active carbon filter layer in air cleaning equipment, the desorption regeneration device comprises an induced draft fan, the active carbon filter layer and an active grid plate of the air cleaning equipment, the induced draft fan and the active grid plate are positioned on the both sides of the active carbon filter layer, the air cleaning equipment is also provided with an alternating current power supply and a pair of parallel electrodes, the active carbon filter layer is positioned between the pair of parallel electrodes, the voltage pressure of the alternating current power supply is 10-50kV / m, two electrodes of the alternating current power supply are respectively connected with one electrode, a desorption channel is also arranged between the active carbon filter layer and the active grid plate, and one side of the desorption channel is connected with one by-pass channel. Compared with the prior art, the regeneration processing of the active carbon filter layer in the air cleaning equipment can be performed by relatively simple equipment, so that the active carbon service life can be improved, and the operating cost of the air cleaning equipment can be reduced.
Description
Technical field
The present invention relates to field of environment protection, particularly to being indoor air purification equipment aspect.
Background technology
People spend the most of the time throughout one's life in the interior space, and indoor air quality is closely bound up with the health of the mankind.In recent years, the atmospheric environment that we depend on for existence is just by the most serious pollution, and haze weather and various industrial pollution source result also in the deterioration of IAQ (indoor air quality).Additionally, VOC (volatile organic produced by the use of the most numerous and diverse various finishings and furniture material
Compounds) pollute, be also another principal element of IAQ (indoor air quality) decline.Everything makes indoor air purification series products have important research and development value and the wide market space.
The household electrical appliances manufacturer such as Sharp, Toshiba, Panasonic, great Jin, beautiful, Electrolux is all proposed the air purifier of Multiple Type in the market, has the most each developed distinctive patented technology.The multiple means composite purification patterns such as high-efficient filter net filtration, plasma (anion) purification and adsorbent that these purification products use mostly.In these air purifiers, absorbent charcoal material is because containing a large amount of micropores, there is huge specific surface area, can be widely used and achieve generally acknowledged good air purification effect as a kind of efficient removal formaldehyde and the adsorbent of other organic pollutions.But being as volatile organic contaminant to be constantly attracted in the hole of activated carbon, the adsorbable amount of activated carbon is also constantly reducing.Activated carbon filter layer in cleaning equipment will lose efficacy over time, adds the use cost of air clearing product, have impact on the practicality of air purifier.And discarded active carbon filter will also result in secondary pollution after being dropped.
Therefore, it is possible to a kind of effective activated charcoal desorption method of development, in raising air purifier, the service life of activated carbon filter layer has popularized very important meaning for air clearing product.
At present in industrial application, researchers both domestic and external have been developed except such as hot in-place recycling, solution regeneration techniques, electrochemical regeneration technology isoreactivity charcoal desorption and regeneration technology.But these technology often equipment is complicated, expensive cannot be directly applied in air cleaning facility.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, and provide a kind of and be easily achieved and the desorption and regeneration device of activated carbon filter layer and desorption process for regenerating in the air cleaning facility of simple in construction low cost, thus be desorbed out from the surface and hole of activated carbon by the VOCs of absorption, it is achieved the regeneration of activated carbon filter layer is reused.
Realize the technology of the present invention problem technical scheme be such that
The desorption and regeneration device of activated carbon filter layer in a kind of air cleaning facility, air-introduced machine including air cleaning facility, activated carbon filter layer and movable screen, described air-introduced machine and movable screen are positioned at the both sides of described activated carbon filter layer, it is characterized in that: in described air cleaning facility, be additionally provided with an alternating current power supply and pair of parallel electrode, described activated carbon filter layer is between the pair of parallel pole, the voltage pressure of described alternating current power supply is 10 ~ 50kV/m, the two-stage of alternating current power supply is connected with an electrode respectively, it is additionally provided with a desorption passage between described activated carbon filter layer and movable screen, bypass channel is connected in the side of desorption passage.
Described parallel pole is netted or dish-type electrode.
The voltage pressure of described alternating current power supply is 3 ~ 50kV/m.
The desorption process for regenerating of activated carbon filter layer in a kind of air cleaning facility, both sides parallel direction at activated carbon filter layer is respectively arranged a netted or dish-type electrode, when activated carbon adsorption amount is close to time saturated, activated carbon filter layer two lateral electrode is connected with alternating current power supply, the voltage strength of alternating current power supply is adjusted to equipment 10 ~ 50kV/m, between activated carbon molecule and pollutant, produces dipole moment change by two lateral electrodes and contaminant molecule is desorbed out activated carbon；While electrode effect Detachment Activity charcoal, the air-introduced machine of air cleaning facility works at the same time, and the contaminant molecule from bypass channel, desorption gone out by air-flow takes outdoor out of.
Compared with prior art, the invention has the beneficial effects as follows:
Directly increase a single desorption apparatus and directly carry out the desorption of volatile organic contaminant and process air cleaning facility is internal, desorption apparatus simple in construction, low cost and realize the repeated regeneration of activated carbon filter layer.Improve the service life of depurator internal core parts.
In view of the punch-through effect of air, for ensureing equipment and instrument safety, voltage strength is not to be exceeded 50kV/m.Along with the field intensity acted on active carbon layer increases, the polarization of organic pollution strengthens, and the absorption potential between contaminant molecule and activated carbon reduces the most accordingly, thus strengthens pollutant desorption process from activated carbon filter layer.
Accompanying drawing explanation
Fig. 1 is the framework schematic diagram of desorption and regeneration device of the present invention.
The concentration change schematic diagram of residue when Fig. 2 is to use desorption method of the present invention and existing desorption method to be desorbed.
Wherein 1, alternating current power supply, 2, air-introduced machine, 3, electrode, 4, activated carbon filter layer, 5, bypass duct, 6, movable screen.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is done further details of elaboration by detailed description of the invention.
As shown in Figure 1, the desorption and regeneration device of activated carbon filter layer in a kind of air cleaning facility of the present invention, including alternating current power supply 1, air-introduced machine 2, electrode 3, activated carbon filter layer 4 and movable screen 6, wherein electrode 3 is pair of parallel electrode, and electrode is netted or dish-type electrode.Air-introduced machine 2 and movable screen 6 are positioned at the both sides of activated carbon filter layer 4, activated carbon filter layer 4 is between pair of parallel electrode, the voltage pressure of alternating current power supply 1 is 10 ~ 50kV/m, the two-stage of alternating current power supply 1 is connected with an electrode 3 respectively, between activated carbon filter layer 4 and movable screen 6, it is additionally provided with a desorption passage, connects bypass channel 5 in the side of desorption passage.
Activated carbon filter layer desorption process for regenerating of the present invention is, be arranged in parallel two electrodes 3 in the lateral symmetry position of air purifier internally installed activated carbon filter layer 4 position.When desorption system is started working, keep air-introduced machine 2 to work, simultaneously close off the movable screen 6 on the primary path purifying air, open the bypass duct 5 outside junction chamber.Battery lead plate 3 is connected with alternating current power supply 1, and alternating current power supply 1 voltage strength is adjusted to 20kV/m.Under this high-frequency alternating electromagnetic field effect, the volatile organic contaminant molecule in activated carbon starts to be desorbed out, and is brought into bypass duct 5 by fan airflow.Desorption system work while, utilize air purifier self with VOCs detect equipment, the VOCs concentration near on-line checking electrode 3, when its concentration less than detection threshold value time, desorption process end-of-job.As shown in Figure 2, there is no activated carbon desorption process under voltage operative condition it can be seen that under electric field action, regenerating active carbon efficiency substantially speeds by comparing.
Claims (4)
1. the desorption and regeneration device of activated carbon filter layer in an air cleaning facility, air-introduced machine including air cleaning facility, activated carbon filter layer and movable screen, described air-introduced machine and movable screen are positioned at the both sides of described activated carbon filter layer, it is characterized in that: in described air cleaning facility, be additionally provided with an alternating current power supply and pair of parallel electrode, described activated carbon filter layer is between the pair of parallel pole, the two poles of the earth of alternating current power supply are connected with an electrode respectively, desorption electric field is formed between two parallel poles, the desorption electric field intensity that described alternating current power supply produces is 10 ~ 50kV/m, it is additionally provided with a desorption passage between described activated carbon filter layer and movable screen, bypass channel is connected in the side of desorption passage.
Desorption and regeneration device the most according to claim 1, it is characterised in that: described parallel pole is netted or dish-type electrode.
Desorption and regeneration device the most according to claim 1, it is characterised in that: the desorption electric field intensity that described alternating current power supply produces is 30 ~ 50kV/m.
4. a desorption process for regenerating based on the desorption and regeneration device described in claim 1, it is characterized in that: the both sides parallel direction at activated carbon filter layer is respectively arranged a netted or dish-type electrode, when activated carbon adsorption amount is close to time saturated, activated carbon filter layer two lateral electrode is connected with alternating current power supply, the desorption electric field intensity that alternating current power supply produces is adjusted to 20kV/m, between activated carbon molecule and pollutant, produces dipole moment by two lateral electrodes and contaminant molecule is desorbed out activated carbon；While electrode effect Detachment Activity charcoal, the air-introduced machine of air cleaning facility works at the same time, and the contaminant molecule from bypass channel, desorption gone out by air-flow takes outdoor out of.
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| CN201410650023.7A CN104474839B (en) | 2014-11-17 | 2014-11-17 | Desorption regeneration device and desorption regeneration method of active carbon filter layer in air cleaning equipment |
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| CN201410650023.7A CN104474839B (en) | 2014-11-17 | 2014-11-17 | Desorption regeneration device and desorption regeneration method of active carbon filter layer in air cleaning equipment |
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| CN104474839B true CN104474839B (en) | 2017-01-11 |
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| CN106076060B (en) * | 2016-06-08 | 2018-12-21 | 深圳奇滨科技开发有限公司 | A kind of air filter |
| CN107051108A (en) * | 2017-04-14 | 2017-08-18 | 东南大学 | A kind of carbon dioxide adsorption desorption device of Co-generation |
| CN108772051A (en) * | 2018-05-31 | 2018-11-09 | 江苏大学 | A kind of activated carbon fibre regenerating unit using ozone oxidation-electrothermal desorption |
| CN112958057B (en) * | 2021-01-20 | 2022-05-17 | 江苏科威环保技术有限公司 | Desorption device for enhancing desorption capacity of activated carbon |
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| JPH044015A (en) * | 1990-04-18 | 1992-01-08 | Mitsubishi Electric Corp | Dehumidifier with deodorizing function |
| JPH05184852A (en) * | 1992-01-13 | 1993-07-27 | Mitsubishi Heavy Ind Ltd | Hydrocarbon treating device using adsorbent |
| US5505825A (en) * | 1994-09-20 | 1996-04-09 | Foster Miller Inc. | Electrically conductive sorption system and method |
| AU2002350316A1 (en) * | 2001-12-19 | 2003-06-30 | Mcgill University | Adsorption of contaminants from gaseous stream and in situ regeneration of sorbent |
| FI120637B (en) * | 2008-06-02 | 2009-12-31 | Environics Oy | Devices for concentrating and analyzing the components of a liquid medium and assay method |
| CN101450306B (en) * | 2008-12-10 | 2011-12-14 | 南华大学 | Depressurization desorption regeneration device and method of radon-absorption active carbon |
| CN101444693B (en) * | 2008-12-19 | 2011-03-02 | 哈尔滨工业大学 | Method for activated carbon fiber variable voltage desorption gas |
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