CN208711441U - A kind of guide structure of photocatalysis Decomposition oil smoke - Google Patents
A kind of guide structure of photocatalysis Decomposition oil smoke Download PDFInfo
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- CN208711441U CN208711441U CN201721770485.8U CN201721770485U CN208711441U CN 208711441 U CN208711441 U CN 208711441U CN 201721770485 U CN201721770485 U CN 201721770485U CN 208711441 U CN208711441 U CN 208711441U
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- Prior art keywords
- lamina
- septum pellucidum
- light source
- oil smoke
- optical fiber
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Abstract
The utility model discloses a kind of guide structures of photocatalysis Decomposition oil smoke, including shell, light source, lamina of septum pellucidum, reflecting mirror and several lateral optical fibers, reflecting mirror is affixed on the side wall setting of shell, lamina of septum pellucidum is set to enclosure interior, and be arranged with mirror parallel, lamina of septum pellucidum, reflecting mirror and inner walls surround photocatalysis Decomposition area；One end of lateral optical fiber is fixed on lamina of septum pellucidum, and the other end is fixed on the mirror；It is light source region between the side wall and lamina of septum pellucidum opposite with reflecting mirror of the shell, is provided with light source in light source region；The surface of lamina of septum pellucidum, reflecting mirror and lateral optical fiber is coated with photocatalyst layer；The both ends of shell are respectively arranged with inlet and outlet, and oil smoke enters photocatalysis Decomposition area by import, and light source is irradiated to lamina of septum pellucidum, and light is entered in lateral optical fiber by lamina of septum pellucidum, and the photochemical catalyst of coating degrades to oil smoke under the action of light.
Description
Technical field
The utility model belongs to technology for cooking fume control field, is related to a kind of guide structure of photocatalysis Decomposition oil smoke, just
It conducts in by ultraviolet light to photochemical catalyst, catalyst oxygenolysis is excited to pass through the oil smoke of catalyst surface.
Background technique
Photocatalytic oxidation is to utilize semiconductor nanoparticle (such as titanium dioxide TiO2Nano particle) absorb high-energy photon
Electron hole pair is generated, and further reacts the hydroxyl free radical (OH) and super oxygen for generating strong oxidizing property with hydrone and oxygen
Free radical (O).Oxidation reaction occurs for the organic matter of these as lively as a cricket free radicals and nano grain surface, resolves into small organic
Molecule is ultimately breaks down into carbon dioxide, water and mineral salt etc. after multiple photochemical catalytic oxidation.
Photocatalytic oxidation is because its oxygenolysis organism kinds is wide, complete decomposition, end product environmental sound,
It is gradually applied in the high-cost pollution processing such as exhaust gas, waste water.The fume pollution that catering trade generates at present also gradually has
TiO2The large-scale combined cooking fume filter application of catalyst photocatalysis Decomposition oil smoke function.However because light-catalyzed reaction rate compared with
Slowly, in the case of big oil smoke treating capacity, the ultraviolet light intensity needed is big, and catalyst irradiated area is big, needs a large amount of lamp wall
Outer painting TiO2The ultraviolet lamp array of the metal mesh of catalyst or negative photocatalyst-bearing can just be met the requirements.Frangible ultraviolet lamp is wanted
It asks filter that there is very high shock resistance, substantially increases equipment cost, and currently as the mercury lamp service life of main ultraviolet light source
Short, a large amount of ultraviolet lighting demand is frequently replaced, and also substantially increases maintenance cost.Therefore, current photochemical catalytic oxidation
Decomposing oil smoke is at high cost, bulky, it is difficult to be generalized to cafeteria and average family.
Utility model content
In order to solve the deficiencies in the prior art, the purpose of the utility model is to provide a kind of light guides of photocatalysis Decomposition oil smoke
Ultraviolet source is conducted directly to photochemical catalyst by structure, and catalytic decomposition touches the oil smoke of photochemical catalyst.
To achieve the goals above, the technical solution of the utility model are as follows:
A kind of guide structure of photocatalysis Decomposition oil smoke, including shell, light source, lamina of septum pellucidum, reflecting mirror and several sides
To optical fiber, reflecting mirror is affixed on the side wall setting of shell, and lamina of septum pellucidum is set to enclosure interior, and sets with mirror parallel
It sets, lamina of septum pellucidum, reflecting mirror and inner walls surround photocatalysis Decomposition area；
One end of lateral optical fiber is fixed on lamina of septum pellucidum, and the other end is fixed on the mirror；
It is light source region between the side wall and lamina of septum pellucidum opposite with reflecting mirror of the shell, is provided with light in light source region
Source；
The surface of lamina of septum pellucidum, reflecting mirror and lateral optical fiber is coated with photocatalyst layer；
The both ends of shell are respectively arranged with inlet and outlet, and oil smoke enters photocatalysis Decomposition area by import, and light source is to saturating
Bright partition irradiation, light are entered in lateral optical fiber by lamina of septum pellucidum, and the photochemical catalyst of coating is under the action of light to oil smoke
It degrades.
Lateral optical fiber increases the area that photochemical catalyst receives illumination, and the presence of reflecting mirror avoids the loss of light,
The comprehensive utilization efficiency for improving ultraviolet source of the two, reduces the quantity of ultraviolet source, greatly reduces photocatalysis Decomposition oil
The volume of cigarette equipment.
Preferably, the diameter of the lateral optical fiber is 0.1-2mm, preferably 0.1-0.5mm.
Preferably, density 50-600 item/cm of lateral optical fiber2.The density of optical fiber should be carried out according to the diameter of optical fiber
Corresponding adjustment.
It is further preferred that the length of lateral optical fiber is 5-20cm, preferably 5-10cm, most preferably 10cm.Light
The lateral direction light emission intensity for leading fiber increases with distance and is decayed, and has preferable catalytic efficiency within 10cm.
Preferably, photochemical catalyst is graininess photochemical catalyst, and the partial size of particle is 10-100nm, preferably 30-80nm.
Preferably, the air duct length in photocatalysis Decomposition area is 30-60cm.The air duct in photocatalysis Decomposition area is oil smoke in light
The distance that flows through of catalytic decomposition area can be realized oil smoke and more thoroughly degrade when air duct length is 30-60cm, avoid pair
Environment pollutes.
Preferably, other inner wall areas in the photocatalysis Decomposition area are provided with light reflection structure.For being carried out to light
Reflection, avoids the loss of light, to improve the utilization rate of light.
Preferably, the lamina of septum pellucidum is transparent quartz plate.
Preferably, the photocatalysis Decomposition area is provided with several baffle plates, and two faces of baffle plate are reflecting surface.
Above-mentioned reflecting mirror is replaced with the second lamina of septum pellucidum by a kind of guide structure of photocatalysis Decomposition oil smoke, and second thoroughly
Bright partition is set to the inside of shell, and several lateral optical fibers are connected between lamina of septum pellucidum and the second lamina of septum pellucidum；
Lamina of septum pellucidum, the second lamina of septum pellucidum and inner walls surround photocatalysis Decomposition area, lamina of septum pellucidum and the second septum pellucidum
It is respectively first light source area and second light source area between plate and the opposite two side walls of shell, first light source and the is respectively set
Two light sources；
The surface of lamina of septum pellucidum, the second lamina of septum pellucidum and lateral optical fiber is coated with photocatalyst layer；
The both ends of shell are respectively arranged with inlet and outlet.
Preferably, the length of the lateral optical fiber is 20-40cm, preferably 20-30cm.
Preferably, light source is ultraviolet source.
It is further preferred that being provided with air inlet on the side wall of the shell, air is passed through to light source region by air inlet,
Light source is cooled down, while the ozone that light source generates being carried to downstream, the oil smoke after light degradation is continued with.
Ultraviolet source is easy to produce ozone during the work time, is passed through air to light source region, by the ozone of generation carry to
In the oil smoke in downstream photocatalysis Decomposition area, oil smoke can be further processed.Since ozone stable is not high, nothing is resolved into quickly
The oxygen of poison, will not cause damages to environment.
The guide structure of photocatalysis Decomposition oil smoke is after one section using the time, it is only necessary to which clear water rinses, and removing is adhered to
The oil smoke mineralizer of photocatalyst surface.Deactivated photochemical catalyst by long-term use, it is only necessary to clean optical fiber and apply again again
Cloth photochemical catalyst, or the guide structure directly more renewed.
The utility model has the following beneficial effects:
Receive illuminating area by what lateral optical fiber increased photochemical catalyst, improve ultraviolet source utilizes effect
Rate reduces the quantity of ultraviolet source, greatly reduces the volume of photocatalysis Decomposition oil smoke equipment, on the one hand significantly reduces and set
Standby cost, on the other hand reduces operation and maintenance requirement, improves equipment dependability, cost performance and competitiveness, expand catalysis
The application range of decomposing oil smoke.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is that schematic diagram is catalytically decomposed in ultraviolet guide structure side view/oil smoke；
Fig. 2 is ultraviolet guide structure top view；
Fig. 3 is that oil smoke air draft negative pressuren zone oil smoke decomposes guide structure schematic diagram；
Fig. 4 is that oil smoke air draft zone of positive pressure oil smoke decomposes guide structure schematic diagram.
Wherein, 1. suprasil plate, 2. ultraviolet sources, 3. carbon dioxide and water, 4. sides are to optical fiber, 5. photochemical catalysts
Layer, 6. aluminium reflectors, 7. fume molecules, 8. shells, 9. air inlets, 10. photocatalysis Decomposition areas, 11. oil smoke imports, 12. fans.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, exist in the prior art to meet catalyst and receive the area of illumination and be arranged
Large volume, Gao Chengben caused by a large amount of ultraviolet lamp tubes, affect miniaturization, the household of oil smoke resolving device.In order to solve such as
On technical problem, present applicant proposes a kind of guide structures.
A kind of exemplary embodiment of the application, provides a kind of guide structure (as shown in Figure 1), and one side is transparent stone
English plate 1, fixation thereon can side direction light lateral optical fiber 4, lateral 4 other end of optical fiber is fixed on aluminium reflector 16
On.6 surface coating photocatalyst layer 5 of suprasil plate 1, lateral optical fiber 4 and aluminium reflector, ultraviolet source 2 is through saturating
Bright quartz plate 1 enters lateral optical fiber 4, and lateral optical fiber 4 directs the light to side wall and tip, and in tip by aluminium reflector
6 reflections.The excitation of photochemical catalyst light, generates high oxidative free radical, fume molecules 7 is catalytically decomposed as carbon dioxide and water 3.
Aluminium reflector 6 can be substituted by suprasil plate, and second light source is arranged, and carried out double-sided illumination to photocatalysis Decomposition area, improved light
Catalytic effect.
(Fig. 2) is wrapped up by the shell 8 with aluminium reflector on the outside of above-mentioned guide structure, the photocatalysis Decomposition area 11 of shell is simultaneously
There is several to have the baffle plate of aluminium reflector to divide, extends the path that oil smoke passes through.The lateral optical fiber of array by side or
The light source of upper and lower sides is directed into photochemical catalyst, activates photochemical catalyst decomposing oil smoke.
The material of lateral optical fiber 4 described herein is the transparent materials such as fluorine-containing acrylic, polytetrafluoroethylene (PTFE), quartz
Material, is preferred with fluorine-containing acrylic.Optical fiber surface is handled, and light source is transmissive to.
It is above-mentioned can side direction light fiber lengths be 5-20cm, be preferred with 10cm long.Such as bilateral light source, then length is multiplicable.
It is above-mentioned can side direction light fibre diameter it is the smaller the better, it is practical to be preferred with 0.1-2mm.
The length that oil smoke passes through in above-mentioned guide structure is not less than 30cm.
Above-mentioned photochemical catalyst is titanium dioxide, and particle size 10-100nm is preferred with 30-80nm.Excitation light source wavelength
No more than 382nm.Catalyst coated toast 0.5-2 hours after optical fiber surface through 70-100 degree is reinforced.
In specific implementation, ultraviolet source is easy to produce ozone, and ozone is both pollution sources and excellent oxidant,
Facilitate the decomposition of oil smoke.Therefore photocatalysis Decomposition oil smoke guide structure best position oil smoke air draft negative pressuren zone,
As shown in figure 3, fresh air passes through ultraviolet source 2 from air inlet 10, i.e., cooling light source, while the ozone band for again generating light source
Enter oil smoke exhaust outlet, continues the oil smoke for decomposing possible remnants.Ozone stable is not high, resolves into nontoxic oxygen quickly.Oil smoke
It is discharged after photocatalysis Decomposition area 10 is catalytically decomposed into carbon dioxide and water from oil smoke import 11.
As photocatalysis Decomposition oil smoke guide structure installation site oil smoke air draft zone of positive pressure, as shown in figure 4, need to be to cold
But air pressurized.Fresh air enters light source region, cooling light source and the ozone for taking generation out of through the pressurization of fan 12 from air inlet 9,
It is discharged into oil smoke exhaust outlet.Oil smoke is discharged after photocatalysis Decomposition area 10 is catalytically decomposed into carbon dioxide and water from oil smoke import 11.
Simulating oil smoke decomposition experiment proves, 5-10mg/m3The oil smoke of TVOC concentration passes through the cross section 20x20cm, and length is only
The fiber array of 10cm, 300W ultraviolet mercury lamp photocatalytic decomposition efficiency is about 60-80%.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of guide structure of photocatalysis Decomposition oil smoke, it is characterised in that: including shell, light source, lamina of septum pellucidum, reflecting mirror and
Several lateral optical fibers, reflecting mirror are affixed on the side wall setting of shell, and lamina of septum pellucidum is set to enclosure interior, and and reflecting mirror
It is arranged in parallel, lamina of septum pellucidum, reflecting mirror and inner walls surround photocatalysis Decomposition area；
One end of lateral optical fiber is fixed on lamina of septum pellucidum, and the other end is fixed on the mirror；
It is light source region between the side wall and lamina of septum pellucidum opposite with reflecting mirror of the shell, is provided with light source in light source region；
The surface of lamina of septum pellucidum, reflecting mirror and lateral optical fiber is coated with photocatalyst layer；
The both ends of shell are respectively arranged with inlet and outlet, and oil smoke enters photocatalysis Decomposition area by import, and light source is to septum pellucidum
Plate irradiation, light are entered in lateral optical fiber by lamina of septum pellucidum, and the photochemical catalyst of coating carries out oil smoke under the action of light
Degradation.
2. guide structure according to claim 1, it is characterised in that: the diameter of the lateral optical fiber is 0.1-2mm.
3. guide structure according to claim 1, it is characterised in that: the quantity of lateral optical fiber is 50-600 item/cm2。
4. guide structure according to claim 1, it is characterised in that: the length of lateral optical fiber is 5-20cm.
5. guide structure according to claim 1, it is characterised in that: photochemical catalyst is graininess photochemical catalyst, particle
Partial size is 10-100nm.
6. guide structure according to claim 1, it is characterised in that: the air duct length in photocatalysis Decomposition area is 30-60cm.
7. guide structure according to claim 1, it is characterised in that: other inner wall areas in the photocatalysis Decomposition area are equal
It is provided with light reflection structure；The photocatalysis Decomposition area is provided with several baffle plates, and two faces of baffle plate are reflecting surface.
8. a kind of guide structure of photocatalysis Decomposition oil smoke, it is characterised in that: the reflecting mirror in claim 1 is replaced with second
Lamina of septum pellucidum, the second lamina of septum pellucidum are set to the inside of shell, and several lateral optical fibers are connected to lamina of septum pellucidum and second
Between lamina of septum pellucidum；
Lamina of septum pellucidum, the second lamina of septum pellucidum and inner walls surround photocatalysis Decomposition area, lamina of septum pellucidum and the second lamina of septum pellucidum with
It is respectively first light source area and second light source area between the opposite two side walls of shell, first light source and the second light is respectively set
Source；
The surface of lamina of septum pellucidum, the second lamina of septum pellucidum and lateral optical fiber is coated with photocatalyst layer；
The both ends of shell are respectively arranged with inlet and outlet.
9. guide structure according to claim 8, it is characterised in that: the length of the lateral optical fiber is 20-40cm.
10. guide structure according to claim 8, it is characterised in that: light source is ultraviolet source, on the side wall of the shell
It is provided with air inlet, air is passed through to light source region by air inlet, light source is cooled down, while the ozone that light source generates being taken
Band continues with the oil smoke after light degradation to downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770485.8U CN208711441U (en) | 2017-12-18 | 2017-12-18 | A kind of guide structure of photocatalysis Decomposition oil smoke |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770485.8U CN208711441U (en) | 2017-12-18 | 2017-12-18 | A kind of guide structure of photocatalysis Decomposition oil smoke |
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| CN208711441U true CN208711441U (en) | 2019-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855001A (en) * | 2017-12-18 | 2018-03-30 | 浙江师范大学 | A kind of guide structure of photocatalysis Decomposition oil smoke |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855001A (en) * | 2017-12-18 | 2018-03-30 | 浙江师范大学 | A kind of guide structure of photocatalysis Decomposition oil smoke |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20201218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |