CN104474839A - 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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- CN104474839A CN104474839A CN201410650023.7A CN201410650023A CN104474839A CN 104474839 A CN104474839 A CN 104474839A CN 201410650023 A CN201410650023 A CN 201410650023A CN 104474839 A CN104474839 A CN 104474839A
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- filter layer
- carbon filter
- activated carbon
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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, is particularly indoor air purification equipment aspect.
Background technology
The most of the time in people all one's life is all spent in the interior space, indoor air quality and the health of the mankind closely bound up.In recent years, the atmospheric environment that we depend on for existence is just being subject to day by day serious pollution, and haze weather and various industrial pollution source result also in the deterioration of IAQ.In addition, the VOC (volatile organic compounds) that day by day numerous and diverse various finishing and the use of furniture material produce pollutes, and is also another principal element that IAQ declines.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 also developed distinctive patented technology separately.The multiple means composite purification patterns such as the purification of the high-efficient filter net filtration that these purified product adopt mostly, plasma (anion) and adsorbent.In these air purifiers, absorbent charcoal material is because containing a large amount of micropore, there is huge specific area, can be widely used as the adsorbent of a kind of efficient removal formaldehyde and other organic pollutions and achieve generally acknowledged good air purification effect.But along with volatile organic contaminant is constantly attracted in the hole of active carbon, the adsorbable amount of active carbon is also in continuous minimizing.Activated carbon filter layer over time in cleaning equipment will lose efficacy, and added the use cost of air clearing product, have impact on the practicality of air purifier.And discarded active carbon filter also can cause secondary pollution after being dropped.
Therefore, it is possible to a kind of effective activated charcoal desorption method of development, the service life of improving activated carbon filter layer in air purifier 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, regeneration of waste liquor technology, electrochemical regeneration technology isoreactivity charcoal desorption and regeneration technology.But often equipment is complicated, expensive cannot directly be applied in air cleaning facility for these technology.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and provide a kind of and be easy to realize and the desorption and regeneration device of activated carbon filter layer and desorption process for regenerating in the low air cleaning facility of the simple cost of structure, thus by the VOCs of absorption from desorption the surface and hole of active carbon out, the regeneration realizing activated carbon filter layer is reused.
Realize the technology of the present invention problem technical scheme be such:
The desorption and regeneration device of activated carbon filter layer in a kind of air cleaning facility, comprise the air-introduced machine of 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 also provided with an AC power and pair of parallel electrode, described activated carbon filter layer is between described pair of parallel electrode, the voltage pressure of described AC power is 10 ~ 50kV/m, the two-stage of AC power respectively with an Electrode connection, a desorption passage is also provided with 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 AC power is 3 ~ 50kV/m.
The desorption process for regenerating of activated carbon filter layer in a kind of air cleaning facility, a netted or dish-type electrode is arranged respectively in the both sides parallel direction of activated carbon filter layer, when charcoal absorption amount is close to time saturated, activated carbon filter layer two lateral electrode and AC power are connected, the voltage strength of AC power is adjusted to equipment 10 ~ 50kV/m, between active carbon molecule and pollutant, produces dipole moment change by two lateral electrodes and contaminant molecule desorption is gone out active carbon; While electrode effect Detachment Activity charcoal, the air-introduced machine of air cleaning facility works at the same time, from bypass channel, the contaminant molecule that desorption goes out is taken out of outdoor by air-flow.
Compared with prior art, the invention has the beneficial effects as follows:
Directly increase the desorption process that an independent desorption apparatus directly carries out volatile organic contaminant air cleaning facility is inner, desorption apparatus structure is simple, cost is low and realize the repeated regeneration of activated carbon filter layer.Improve the service life of clarifier internal core parts.
Consider the punch-through effect of air, for ensureing equipment and instrument safety, voltage strength should more than 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 active carbon also reduces accordingly, thus strengthening pollutant is from the desorption process activated carbon filter layer.
Accompanying drawing explanation
Fig. 1 is the framework schematic diagram of desorption and regeneration device of the present invention.
Fig. 2 is the change in concentration schematic diagram of residue when adopting desorption method of the present invention and existing desorption method to carry out desorption.
Wherein 1, AC power, 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 drawings and the specific embodiments, elaboration detailed is further done to the present 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, comprise AC power 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 AC power 1 is 10 ~ 50kV/m, the two-stage of AC power 1 is connected with an electrode 3 respectively, between activated carbon filter layer 4 and movable screen 6, be also provided with a desorption passage, connect 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 in the bilateral symmetry position of installation activated carbon filter layer 4 position, air purifier inside two electrodes 3.When desorption system is started working, keep air-introduced machine 2 to work, close the movable screen 6 on the primary path that purifies air simultaneously, open the bypass duct 5 outside junction chamber.Battery lead plate 3 and AC power 1 are connected, and AC power 1 voltage strength is adjusted to 20kV/m.Under this high-frequency alternating electromagnetic field effect, the volatile organic contaminant molecule in active carbon starts desorption out, and is brought into bypass duct 5 by fan airflow.While desorption system work, utilize air purifier self with VOCs checkout equipment, the VOCs concentration near on-line checkingi electrode 3, when its concentration is less than detection threshold, desorption process end-of-job.As shown in Figure 2, under can seeing electric field action by relatively not having active carbon desorption process under voltage operative condition, regenerating active carbon efficiency obviously speeds.
Claims (4)
1. the desorption and regeneration device of activated carbon filter layer in an air cleaning facility, comprise the air-introduced machine of 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 also provided with an AC power and pair of parallel electrode, described activated carbon filter layer is between described pair of parallel electrode, the voltage pressure of described AC power is 10 ~ 50kV/m, the two-stage of AC power respectively with an Electrode connection, a desorption passage is also provided with between described activated carbon filter layer and movable screen, bypass channel is connected in the side of desorption passage.
2. desorption and regeneration device according to claim 1, is characterized in that: described parallel pole is netted or dish-type electrode.
3. desorption and regeneration device according to claim 1, is characterized in that: the voltage pressure of described AC power is 30 ~ 50kV/m.
4. the desorption process for regenerating based on desorption and regeneration device according to claim 1, it is characterized in that: arrange a netted or dish-type electrode respectively in the both sides parallel direction of activated carbon filter layer, when charcoal absorption amount is close to time saturated, activated carbon filter layer two lateral electrode and AC power are connected, the voltage strength of AC power is adjusted to 20kV/m, between active carbon molecule and pollutant, produces dipole moment by two lateral electrodes and contaminant molecule desorption is gone out active carbon; While electrode effect Detachment Activity charcoal, the air-introduced machine of air cleaning facility works at the same time, from bypass channel, the contaminant molecule that desorption goes out is taken out of outdoor by air-flow.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076060A (en) * | 2016-06-08 | 2016-11-09 | 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 |
| CN112958057A (en) * | 2021-01-20 | 2021-06-15 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106076060A (en) * | 2016-06-08 | 2016-11-09 | 深圳奇滨科技开发有限公司 | A kind of air filter |
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| 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 |
| CN112958057A (en) * | 2021-01-20 | 2021-06-15 | 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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| CN104474839B (en) | 2017-01-11 |
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