CN101545670A - Air treatment device - Google Patents
Air treatment device Download PDFInfo
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- CN101545670A CN101545670A CN200910127621A CN200910127621A CN101545670A CN 101545670 A CN101545670 A CN 101545670A CN 200910127621 A CN200910127621 A CN 200910127621A CN 200910127621 A CN200910127621 A CN 200910127621A CN 101545670 A CN101545670 A CN 101545670A
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- air
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- catalyst
- air processor
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
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Abstract
The present invention discloses an air treatment device, including a power supply; a cavity for controlling the air flow speed and direction, and provided with one or more filters inside, wherein the surface of the filter is adhered with a porous structure of a catalyst. The air treatment device of the invention uses a metallic oxide and a mixture thereof as the catalyst, thus the formaldehyde is decomposed into innocuous water and carbon dioxide with the existing of the oxygen under a normal temperature and pressure, so as to play an aim of purifying the air.
Description
Technical field
The air-conditioning, air cleaner, ventilating fan and the exhaust fan that the present invention relates to a kind of air processor and contain this air processor.
Background technology
Along with the enhancing of people's environmental consciousness, the formaldehyde gas that discharges in the artificial board more and more causes people's attention to the harm that human body causes.The main source of indoor formaldehyde gas is adhesive in the artificial board such as Lauxite etc.Facts have proved that the formaldehyde volatility is poor, belong to " slow release is put ", be 3-15 its release time.Be in for a long time in the environment that content of formaldehyde exceeds standard, can stimulate schneiderian membrane, retina and the upper respiratory tract, cause diseases such as pharyngitis, bronchitis and pneumonia, infringement people's health.
The method of handling formaldehyde gas at present is broadly divided into three major types: physics method, Mechanical Method and chemical method.Wherein the physics method is again based on absorption method and ozone oxidation method.Absorption method mainly adopts active carbon as adsorbent, yet the regeneration desorption of active carbon but becomes the biggest obstacle that makes its extensive use.The ozone oxidation rule is abandoned by people because may regenerate formaldehyde in oxidizing process.
The main means of Mechanical Method are isolated for parcel, promptly wrap up separation layer on the main source of release-artificial board of formaldehyde gas, thereby make formaldehyde gas be difficult for spreading the concentration of formaldehyde that reduces in the environment.But the hidden danger that isolation method exists separation layer to break, and can not fundamentally solve the formaldehyde pollution problems all the time.
And the main thought of chemical method resolves into some nontoxic gases for decomposing and synthesizing with formaldehyde gas, also or with formaldehyde gas and other material synthesizes nontoxic material.Yet its technology is comparatively complicated, is unfavorable for promoting the use of.
So be badly in need of a kind of method of safe and efficient energy-conservation processing formaldehyde gas at present.
Summary of the invention
The invention provides a kind of air processor that can improve the formaldehyde gas clearance rate.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of air processor, it comprises a power supply, and its characteristics are that it also comprises:
One cavity, this cavity is used to control air velocity and direction, and its internal fixation installs one or more filters, and this filter is the open structure that surface attachment has catalyst.
Preferably, this open structure is the single or multiple lift overlay structure, and each layer works is by following material or its mixture: nylon, glass, plastics, resin, braid, metal are molded by prolonging, extrusion modling, thermoplastic shaping or braiding fixedly obtain.
Preferably, described catalyst is following material or its mixture: MnO
2, AgO, TiO
2, its granularity is 5nm～500nm.
Preferably, adhering to of described catalyst is by evaporation, spraying, chemical coating, plating or undertaken surface-coated by adhesive.
Preferably, described catalyst is to obtain by oxidation processes is carried out on the composite material surface of manganese metal, titanium, silver or its alloy and above-mentioned material.
Preferably, the front of this filter or back, there are one or more electrodes that are used for producing at this filter surfaces local non-uniform electric field the left side or the right side or centre, and this electrode is electrically connected with power supply.
Preferably, the sucking-exhausting device or the air-supply arrangement that produce the required pressure reduction of flowing gas at above-mentioned filter two ends are arranged in this cavity, this sucking-exhausting device or air-supply arrangement are electrically connected with power supply.
Preferably, be provided with one or more ultraviolet lamp tube in this cavity, this fluorescent tube is electrically connected with power supply.
Preferably, this cavity bottom is provided with drainage arrangement.
Preferably, this device can be used for wall hanging air-conditioning, window air conditioner, cabinet air-conditioner, central air-conditioning, air conditioning for automobiles.
Preferably, this device can be used for air cleaner.
Preferably, this device can be used for ventilating fan, exhaust fan.
Positive progressive effect of the present invention is:
1, in the air processor of the present invention, uses metal oxide and composition thereof, make formaldehyde and oxygen that decomposition reaction take place at normal temperatures and pressures and make formaldehyde be decomposed into harmless water and carbon dioxide, reach the purpose that purifies air as catalyst.
2, in the air processor of the present invention, the electrode that produces local non-uniform electric field utilize electromagnetic principle with the formaldehyde gas molecular line to catalyst surface, increase the reactant concentration of catalyst surface, improve catalytic efficiency, accelerate decomposition reaction velocity greatly.
3, sucking-exhausting device in the air processor of the present invention and air-supply arrangement make air circulation, repeatedly by containing the particular filter of above-mentioned two technology, increase with the contact area of catalyst as far as possible and prolong the reaction time and obtain the formaldehyde decomposition efficiency of trying one's best high.
Description of drawings
Fig. 1 is the structured flowchart of preferred embodiment of the present invention.
Fig. 2 is the formaldehyde removing rate curve figure of preferred embodiment of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
As shown in Figure 1, be the structured flowchart of air processor of the present invention, this device comprises a power supply 2, and it also comprises:
One cavity 1, this cavity 1 is used to control air velocity and direction, and filter 3 of its internal fixation installation, and this filter 3 has the open structure of catalyst for surface attachment.The quantity of filter can be determined as required, if content of formaldehyde is higher in the environment to be processed, can select to install a plurality of filters, and a plurality of filters can be settled or overlapping arrangement side by side, decide on the size of this cavity 1.
This open structure is the single or multiple lift overlay structure, and each layer works is by following material or its mixture: nylon, glass, plastics, resin, braid, metal are molded by prolonging, extrusion modling, thermoplastic shaping or braiding fixedly obtain.Adopting individual layer still is that the open structure of multilayer is determined on a case-by-case basis, if content of formaldehyde gas is higher in the space that needs to handle, then can adopt the open structure of sandwich construction thing.
Described is following material or its mixture: MnO attached to the catalyst on the open structure of filter
2, AgO, TiO
2, its granularity is 5nm～500nm.This catalyst can be to obtain by oxidation processes is carried out on the composite material surface of manganese metal, titanium, silver or its alloy and above-mentioned material, also directly buys MnO on the market
2, AgO, TiO
2Gained.Adhering to of this catalyst is by evaporation, spraying, chemical coating, plating or undertaken surface-coated by adhesive.Can make catalyst firmly attached to filter surfaces by these adherence methods, difficult drop-off and cause detergent power to descend also can be washed simultaneously.
The front of this filter or back, there are one or more electrodes 4 that are used for producing at this filter surfaces local non-uniform electric field the left side or the right side or centre, and this electrode 4 is electrically connected with power supply 2, and this electrode can be a metal bar.The effect of this electrode 4 is the contact probabilities that increase formaldehyde molecule and catalyst, thereby improves its purification efficiency.Among Fig. 1, electrode 4 is placed in the following and left side near filter 3 respectively, after the energising, electric-field intensity near the electrode place is bigger, and away from the electric-field intensity at electrode place a little less than, so the electric-field intensity distribution around filter is a uneven distribution, therefore everywhere the suffered polarized electric field power of formaldehyde gas molecule difference in the air, the formaldehyde gas molecule can be drawn close to electrode under the effect of electric field force, promptly increase the probability that the formaldehyde gas molecule contacts with the filter surfaces catalyst, thereby improved purification efficiency.
The device 5 that produces the required pressure reduction of flowing gas at above-mentioned filter two ends is arranged in this cavity, and this device can be sucking-exhausting device or air-supply arrangement, and this device 5 is electrically connected with power supply 2.The unlatching of this sucking-exhausting device or air-supply arrangement makes the cavity inner air and outer air form circulation, and the air that will contain the formaldehyde gas molecule is delivered to filter, and the gas that will handle is sent outside the cavity after filtering.
Be provided with a ultraviolet lamp tube 6 in this cavity, this fluorescent tube 6 is electrically connected with power supply 2.TiO
2Under the irradiation of ultraviolet light, can produce higher photocatalytic activity, thereby improve the formaldehyde molecule decomposing efficiency.The quantity of ultraviolet tube is decided by actual needs, and many ultraviolet tubes can be settled around filter 3, and the metal oxide catalyst on the filter 3 fully is exposed under the UV-irradiation.
The bottom of this cavity 1 is provided with drainage arrangement 7.Formaldehyde gas is decomposed into carbon dioxide and steam under the catalysis of metal oxide catalyst, carbon dioxide is external along with sucking-exhausting device or air-supply arrangement discharge side, and steam is then external with person's drainage arrangement 7 discharge sides.
This device can be used for wall hanging air-conditioning, window air conditioner, cabinet air-conditioner, central air-conditioning, air conditioning for automobiles.Only needing that attached catalyst on the air conditioner filter screen promptly be can be used as filter 3 uses.This device can also be used for air cleaner, ventilating fan and exhaust fan.
With reference to figure 2, be the formaldehyde removing rate curve figure of preferred embodiment of the present invention.
Spraying conducting polymer binding material on the screen pack of air-conditioner is then with metal oxide MnO
2Powder is sprayed on the binding material surface, treats to put it in the corresponding air conditioner filter groove after the adhesive cures.
At volume is 20m
3The indoor field test that carries out, indoor formaldehyde gas base concentration is 0.04ppm.Put into formalin 2.5ml, treat that recording its concentration after it volatilizees fully is 4.05ppm.Air-conditioning is opened, and temperature places 27 ℃, closes the doors and windows to begin experiment.Get certain time interval and note the concentration of formaldehyde gas at that time.The content of formaldehyde small-sized analysis-e/or determining of Formaldehyde Meter Model ES300 digital mobile, it is the direct reading instrument that is specifically designed to content of formaldehyde in the detection air that Environmental Sensors company produces, proofread and correct before the use, instrument readings unit is ppm, i.e. percentage by volume.
According to national standard, IAQ standard concentration of formaldehyde should be smaller or equal to 0.07ppm, and air formaldehyde concentration is 0.06ppm after treatment, and the formaldehyde clearance reaches more than 96%, and effect obviously and fully meets national standard.The concentration of formaldehyde of different time is as shown in table 1, and each test interval is 3 hours.
| Testing time (3h) | Test value (ppm) | Testing time (3h) | Test value (ppm) |
| 1 | 4.05 | 11 | 0.29 |
| 2 | 1.78 | 12 | 0.26 |
| 3 | 0.84 | 13 | 0.18 |
| 4 | 0.53 | 14 | 0.21 |
| 5 | 0.39 | 15 | 0.17 |
| 6 | 0.29 | 16 | 0.2 |
| 7 | 0.23 | 17 | 0.11 |
| 8 | 0.3 | 18 | 0.16 |
| 9 | 0.27 | 19 | 0.15 |
| 10 | 0.33 | 20 | 0.16 |
| 21 | 0.06 |
Table 1
As shown in Figure 2, ordinate is formaldehyde gas percent by volume ppm among the figure, and abscissa is time (per unit is 3 hours).
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (12)
1, a kind of air processor, it comprises a power supply, it is characterized in that, and it also comprises:
One cavity, this cavity is used to control air velocity and direction, and this inside cavity fixedly mounts one or more filters, and this filter is the open structure that surface attachment has catalyst.
2, air processor as claimed in claim 1, it is characterized in that, this open structure is the single or multiple lift overlay structure, and each layer works is by following material or its mixture: nylon, glass, plastics, resin, braid, metal are molded by prolonging, extrusion modling, thermoplastic shaping or braiding fixedly obtain.
3, air processor as claimed in claim 1 is characterized in that, described catalyst is following material or its mixture: MnO
2, AgO, TiO
2, its granularity is 5nm～500nm.
4, air processor as claimed in claim 1 is characterized in that, adhering to of described catalyst is by evaporation, spraying, chemical coating, plating or undertaken surface-coated by adhesive.
5, air processor as claimed in claim 1 is characterized in that, described catalyst is to obtain by oxidation processes is carried out on the composite material surface of manganese metal, titanium, silver or its alloy and above-mentioned material.
6, as any described air processor of claim 1-5, it is characterized in that, the front of this filter or back, there are one or more electrodes that are used for producing at this filter surfaces local non-uniform electric field the left side or the right side or centre, and this electrode is electrically connected with power supply.
As any described air processor of claim 1-5, it is characterized in that 7, the sucking-exhausting device or the air-supply arrangement that produce the required pressure reduction of flowing gas at above-mentioned filter two ends are arranged in this cavity, this sucking-exhausting device or air-supply arrangement are electrically connected with power supply.
As any described air processor of claim 1-5, it is characterized in that 8, be provided with one or more ultraviolet lamp tube in this cavity, this fluorescent tube is electrically connected with power supply.
9, as any described air processor of claim 1-5, it is characterized in that this cavity bottom is provided with drainage arrangement.
10, the wall hanging air-conditioning, window air conditioner, cabinet air-conditioner, central air-conditioning, the air conditioning for automobiles that contain any described device among the claim 1-5.
11, the air cleaner that contains any described device among the claim 1-5.
12, the ventilating fan, the exhaust fan that contain any described device among the claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127621A CN101545670A (en) | 2008-03-13 | 2009-03-13 | Air treatment device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810034573.0 | 2008-03-13 | ||
| CN200810034573 | 2008-03-13 | ||
| CN200910127621A CN101545670A (en) | 2008-03-13 | 2009-03-13 | Air treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101545670A true CN101545670A (en) | 2009-09-30 |
Family
ID=41192953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910127621A Pending CN101545670A (en) | 2008-03-13 | 2009-03-13 | Air treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101545670A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785478A (en) * | 2014-01-11 | 2014-05-14 | 清华大学 | Device and process for preparing formaldehyde decomposition felt |
| CN105091152A (en) * | 2014-05-07 | 2015-11-25 | 王盘铭 | Inlaid window ventilation device |
| CN111536623A (en) * | 2020-05-18 | 2020-08-14 | 大连彼姆科技有限公司 | Indoor environment epidemic prevention treatment method and system |
-
2009
- 2009-03-13 CN CN200910127621A patent/CN101545670A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785478A (en) * | 2014-01-11 | 2014-05-14 | 清华大学 | Device and process for preparing formaldehyde decomposition felt |
| CN103785478B (en) * | 2014-01-11 | 2016-01-06 | 清华大学 | A kind of device and technique preparing Formaldehyde decomposition felt |
| CN105091152A (en) * | 2014-05-07 | 2015-11-25 | 王盘铭 | Inlaid window ventilation device |
| CN111536623A (en) * | 2020-05-18 | 2020-08-14 | 大连彼姆科技有限公司 | Indoor environment epidemic prevention treatment method and system |
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Open date: 20090930 |