CN207989117U - A kind of ternary catalyzing unit that ultraviolet light is strengthened - Google Patents
A kind of ternary catalyzing unit that ultraviolet light is strengthened Download PDFInfo
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- CN207989117U CN207989117U CN201820381367.6U CN201820381367U CN207989117U CN 207989117 U CN207989117 U CN 207989117U CN 201820381367 U CN201820381367 U CN 201820381367U CN 207989117 U CN207989117 U CN 207989117U
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- ultraviolet light
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- element catalytic
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Abstract
The utility model discloses the ternary catalyzing units that a kind of ultraviolet light is strengthened, including：Shell, both ends are coaxially provided with air inlet and gas outlet；Multiple three-element catalytic carrier bodies, are fixed in the shell；Multiple ultraviolet radiator are fixed in the shell, and close to the three-element catalytic carrier body；Wherein, the three-element catalytic carrier body, which includes the ultraviolet light that sends out of multiple three-element catalytic carriers being evenly arranged, surface noble metal-coating catalyst, and the ultraviolet radiator, can be radiated on the surface of the three-element catalytic carrier.The ternary catalyzing unit that ultraviolet light provided by the utility model is strengthened, irradiates three-element catalytic carrier using ultraviolet light, and the progress that three-element catalytic can be promoted to react improves catalytic efficiency, reduces the discharge of exhaust pollutant.
Description
Technical field
The utility model belongs to technical field of automobile engine, the more particularly to ternary catalyzing unit that a kind of ultraviolet light is strengthened.
Background technology
As state's laws regulation is increasingly stringenter environmental requirement, a large amount of pollutant component is contained in vehicle exhaust, it is right
Environment pollutes, is detrimental to health, and automobile engine tail gas treatment technology is particularly important, among these ternary catalyzing unit
It is Typical Representative.
Ternary catalyzing unit is a kind of device of processing motor exhaust, and active ingredient is noble metal catalyst, main to make
Be the harmful substances such as carbon monoxide, hydrocarbon and nitrogen oxides in motor exhaust are made by catalytic action it is above-mentioned
Three kinds of gases occur redox reaction and are changed into harmless carbon dioxide, water and nitrogen.
Metal surface launching electronics phenomena principles：In metallic surface, a free electron by multiple nuclear effects,
Its potential energy is as shown in Figure 5.Horizontal axis indicates that the distance apart from metal surface, the longitudinal axis indicate electronics perpendicular to metal surface in figure
Potential energy.In unlimited distance, potential energy zero, i.e. Wa=0.The lowest energy level of free electron is-Wa, and energy is less than the electricity of-Wa again
Son is bound electron, and electronics is strapped in intratomic, it cannot cross " potential barrier " between ion and free movement.In metal freely
The potential energy of electronics isWhen, although they can free movement in a metal, metal can't be detached from.It must be by the external world
To the energy that these electronics are enoughThe kinetic energy of electronics can make it be detached from metal surface more than surface potential barrier and form
For space free electron.The mode for energy being transmitted to from outside this free electron can irradiate metal surface with ultraviolet light,
Here it is photoemission phenomenons.
The basic principle of precious metal catalyst：Chemical reaction needs to overcome the potential barrier of atom or molecule outer layer valence electron, generally
Work function is provided for valence electron by the thermal energy of atom or molecule, to generate electrically charged negative ions, it is anti-to form chemistry
The active group answered.The Work function very little of d or f orbital electron in atom is far below other orbital electron.Thus it is common to use d
Or the atom of f tracks provides the transfer orbit and electronics of intermediate state, generates the active group of electrification as catalyst,
Promote chemical reaction.Therefore, catalytic action core comes from the transfer orbit and its electronics of relatively low Work function, by changing atom
The Work function of core outermost layer valence electron, so that it may to change catalytic efficiency.
The atom of common d or f tracks is mostly precious metal element as catalyst at present.
Ultraviolet irradiation does not need to actually the valence electron of catalyst and reactant ionization being produced from electronics, as long as purple
External exposure is no matter the electronic activation of catalyst or reactant is to corresponding excitation state, so that it may reduce with outer layer valence electron
Work(reduces catalytic temperature to improve catalytic efficiency.The reacting quintessence is photochemical reaction.
During existing ternary catalyzing unit improves, mostly improved in terms of structure, catalyst carrier.It there is no at present from raising
The scheme that catalyst standpoint of efficiency is improved.
Utility model content
The purpose of this utility model is to provide a kind of ternary catalyzing unit that ultraviolet light is strengthened, and is urged using ultraviolet light ternary
Change carrier, the electronic activation of noble metal catalyst to corresponding excitation state is improved into ternary to the generation for promoting catalysis to react
The catalytic efficiency of catalyst converter.
Technical solution provided by the utility model is：
Shell, both ends are coaxially provided with air inlet and gas outlet；
Multiple three-element catalytic carrier bodies, are fixed in the shell；
Multiple ultraviolet radiator are fixed in the shell, and close to the three-element catalytic carrier body；
Wherein, the three-element catalytic carrier body includes multiple three-element catalytic carriers being evenly arranged, and surface coating is expensive
Metallic catalyst, and the ultraviolet light that the ultraviolet radiator is sent out can be radiated on the surface of the three-element catalytic carrier.
Preferably, the three-element catalytic carrier body includes：
Multiple metal electrode boards, parallel interval certain distance arrangement, and it is expensive in metal electrode plate surface coating
Metallic catalyst；
Holding mechanism is fixedly supported between the multiple metal electrode board, and vertical with the metal electrode board.
Preferably, the ultraviolet radiator is axially disposed within the both sides of the three-element catalytic carrier body along the shell.
Preferably, the metal electrode board is using the densely covered net of wire or planar metal plate.
Preferably, the three-element catalytic carrier body includes：
More thin metal pipes surround cylindrical cavity along the shell is axially evenly distributed, and in the thin metal
Pipe surface noble metal-coating catalyst；
Holder is fixedly supported between the more thin metal pipes.
Preferably, the ultraviolet radiator is axially disposed within the center of the cylindrical cavity along the shell.
Preferably, a length of 100~320nm of ultraviolet light wave that the ultraviolet radiator is sent out.
Preferably, it is equipped with heat insulating protecting apparatus on the outside of the ultraviolet radiator.
Preferably, the heat insulating protecting apparatus uses laminated glass material.
Preferably, the both ends of the shell are respectively equipped with the first wiring hole and the second wiring hole, and power cord is from described
One wiring hole and the second wiring hole access ultraviolet radiator.
The utility model has the beneficial effects that：
The ternary catalyzing unit that ultraviolet light provided by the utility model is strengthened irradiates three-element catalytic carrier using ultraviolet light, will
The electronic activation of noble metal catalyst improves ternary catalyzing unit to corresponding excitation state to the generation for promoting catalysis to react
Catalytic efficiency.
Description of the drawings
Fig. 1 is the ternary catalyzing unit general structure schematic diagram that ultraviolet light described in the utility model is strengthened.
Fig. 2 combines structure with ultraviolet radiator for the three-element catalytic carrier body in embodiment one described in the utility model and shows
It is intended to.
Fig. 3 combines structure with ultraviolet radiator for the three-element catalytic carrier body in embodiment two described in the utility model and shows
It is intended to.
Fig. 4 is the general structure schematic diagram of embodiment two described in the utility model.
Fig. 5 is the schematic diagram of metal surface electronic potential described in the utility model.
Specific implementation mode
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art with reference to explanation
Book word can be implemented according to this.
As shown in Figs 1-4, the utility model provides a kind of ternary catalyzing unit that ultraviolet light is strengthened, and can improve ternary
The catalytic efficiency of catalyst converter.The ternary catalyzing unit that the ultraviolet light is strengthened includes：Shell 100, with cylindrical cavity, two
End is coaxially provided with air inlet 110 and gas outlet 120；The air inlet 110 is connect with vehicle-exhaust exhaust pipe, the exhaust outlet
120 are connect by pipeline with mobile muffler.The air inlet 110 and the internal diameter of gas outlet 120 are identical, and the respectively less than described shell
The internal diameter of body 100.The flexible material that the air inlet 110 and gas outlet 120 are insulated using cushion seal, as further excellent
Choosing, the air inlet 110 and gas outlet 120 are isolation material.Multigroup three-element catalytic carrier body 130, is fixedly mounted on institute
It states in shell 100, the three-element catalytic carrier body includes multiple three-element catalytic carriers being evenly arranged, and the three-element catalytic carries
Body surface face noble metal-coating catalyst enhances catalytic effect to make vehicle exhaust uniformly be contacted with three-element catalytic carrier, will be more
Group three-element catalytic carrier body 130 is evenly arranged in the shell 100.Ultraviolet radiator 140 is fixed at the shell
Inside 100, and it is arranged close to the three-element catalytic carrier body 130.The ultraviolet light that ultraviolet radiator 140 is sent out is radiated at institute
On the surface for stating three-element catalytic carrier.Wherein, the both ends of the shell 100 are respectively equipped with the first wiring hole 101 and the second wiring
Hole 102.Power cord is respectively connected to ultraviolet radiator 140 from the first wiring hole 101 and the second wiring hole 102 respectively, make power cord with
Good insulation and closed between shell 100.The ultraviolet radiator 140 sends out extreme ultraviolet light, and wavelength is 100~320nm.
Embodiment one：
As depicted in figs. 1 and 2, the ternary catalyzing unit described in the present embodiment includes air inlet successively from left to right
110, the first wiring hole 101, shell 100, three-element catalytic carrier body 130 (inside the shell 100), the second wiring hole
102, exhaust outlet 120.Air inlet 110, exhaust outlet 120 and shell 100 keep coaxial.
The air inlet 110 is connect with vehicle-exhaust exhaust pipe, and the exhaust outlet 120 is connected by pipeline and mobile muffler
It connects.The three-element catalytic carrier body 130 is fixedly mounted in a housing 100, and three-element catalytic carrier body 130 includes multiple parallel
The metal electrode board 150 of arrangement spaced apart, in the present embodiment, the metal electrode board plate 150 are described three
First catalytic carrier.150 surface noble metal-coating catalyst of metal electrode board, the holding machine being made of two or more root posts 151
Structure is symmetrically fixed at the both sides of metal electrode board 150, is responsible for support metal electrode board 150, three-element catalytic carrier body 130
The good insulation between shell 110.As a further preference, the holding mechanism use ceramic material, make holding mechanism with
Insulation is kept between metal electrode board 150.The left and right sides (both sides that holding mechanism is not set) of three-element catalytic carrier body 130
Multiple ultraviolet radiator 140 are from top to bottom evenly arranged, the ultraviolet radiator 140 is arranged along the axial direction of shell 100, power cord
Be respectively connected to ultraviolet radiator 140 from the first wiring hole 101 and the second wiring hole 102 respectively, make electricity with 110 good insulation of shell and
It is closed.Position where ultraviolet radiator 140 corresponds to the space between two adjacent metal electrode boards 150, keeps ultraviolet light more equal
Even irradiation is on metal electrode board 150.Metal electrode board 150 is using the densely covered net of wire or planar metal plate.
In the present embodiment, the ultraviolet radiator 140 is fixedly mounted in heat insulating protecting apparatus 160, the thermal insulation protection
Device 160 is transparent closed cuboid housing, is fixedly mounted in the shell 100, and is located at the three-element catalytic
The left and right sides of carrier body 130.Heat insulating protecting apparatus 160 is for keeping the temperature around ultraviolet radiator to be unlikely to excessively high damage
Ultraviolet radiator 140.Heat insulating protecting apparatus 160 uses laminated glass material.Heat insulating protecting apparatus 160 can also use other thoroughly
Bright partiting thermal insulation material.
The operation principle of the ternary catalyzing unit provided in the present embodiment is：The tail gas that engine work generates is via air inlet
110 enter in ternary catalyzing unit shells 100, by the gap between metal electrode board 150 in three-element catalytic carrier body 130,
Ultraviolet radiator 140 opens and irradiates far ultraviolet to each metal electrode board 150.Due to the effect of ultraviolet light, metal electrode
The electronics of the noble metal catalyst on 150 surface of plate is activated into corresponding excitation state, reduces Work function, to promote catalysis
The progress of reaction, and then improve the efficiency of three-element catalytic reaction.
Embodiment two：
Shown in as shown in Figure 1, Figure 3 and Figure 4, the ternary catalyzing unit described in the present embodiment includes air inlet successively from left to right
110, the first wiring hole 101, shell 100, multiple three-element catalytic carrier bodies 130 (inside the shell 100), second connects
String holes 102, exhaust outlet 120.Wherein, air inlet 110, exhaust outlet 120 and shell 100 keep coaxial.
The air inlet 110 is connect with vehicle-exhaust exhaust pipe, and the exhaust outlet 120 is connected by pipeline and mobile muffler
It connects.In the present embodiment, the three-element catalytic carrier body 130 includes more thin metal pipes 170,170 edge of the thin metal pipe
The shell is axially evenly distributed to surround cylindrical cavity 171, and the thin metal pipe 170 uses thin metallic tubd, the thin gold
Belong to 170 pipe outer wall noble metal-coating material of pipe (i.e. thin metal pipe 170 is the three-element catalytic carrier)；Every group of thin metal pipe 170
Between support (not shown), the holder to be used to maintain the spread geometry of thin metal pipe 170 using holder.The ultraviolet light
Lamp 140 is axially arranged on the center of the cylindrical cavity 171, between ultraviolet radiator 140 and the thin metal pipe 170 of its periphery
(not shown) is fixed using holder.Power cord is respectively connected to from the first wiring hole 101 and the second wiring hole 102 ultraviolet respectively
Line lamp 140 makes electricity and 110 good insulation of shell and closed.The extreme ultraviolet light uniform irradiation that ultraviolet radiator 140 is sent out is in thin metal
On pipe 170.
Wherein, between ultraviolet radiator 140 and thin metal pipe 170 and between every group of thin metal pipe 170, preferably pass through ceramics
Holder support is fixed, to maintain structure and keep mutually insulated.Ultraviolet radiator 140, outside are fixed and fill transparent closed cylinder
Shape heat insulating protecting apparatus 180, inside it by the package of ultraviolet radiator 140, to keep the temperature around ultraviolet radiator 140 unlikely
In excessively high damage ultraviolet radiator 140.Heat-insulating laminated glass can be used in the heat insulating protecting apparatus, other can also be used transparent
Partiting thermal insulation material.
The operation principle of ternary catalyzing unit provided in this embodiment is：The tail gas that engine work generates is via air inlet
110 enter ternary catalyzing unit, the area surrounded with shell 100 by more thin metal pipes 170 in three-element catalytic carrier body 130
Domain.Ultraviolet radiator 140 is opened, and is sent out extreme ultraviolet light and is irradiated on the outer wall of thin metal pipe 170.Due to the effect of ultraviolet light, carefully
The electronics of the noble metal catalyst coated on 170 outer wall of metal tube is activated into corresponding excitation state, reduces Work function, to
The progress of catalysis reaction is promoted, and then improves the efficiency of three-element catalytic reaction.
In addition, when ultra violet intensity is enough, catalyst Work function is decreased obviously, at this time ternary catalyzing unit thin metal pipe
The metal coated on 170 outer walls may be used base metal such as nickel, copper, cobalt etc. substitute noble metal, with reduce ternary catalyzing unit at
This.
The ternary catalyzing unit that ultraviolet light provided by the utility model is strengthened irradiates three-element catalytic carrier, energy using ultraviolet light
The progress for enough promoting three-element catalytic reaction, improves catalytic efficiency, reduces the discharge of exhaust pollutant.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (10)
1. the ternary catalyzing unit that a kind of ultraviolet light is strengthened, which is characterized in that including：
Shell, both ends are coaxially provided with air inlet and gas outlet；
Multiple three-element catalytic carrier bodies, are fixed in the shell；
Multiple ultraviolet radiator are fixed in the shell, and close to the three-element catalytic carrier body；
Wherein, the three-element catalytic carrier body includes multiple three-element catalytic carriers being evenly arranged, surface noble metal-coating
Catalyst, and the ultraviolet light that the ultraviolet radiator is sent out can be radiated on the surface of the three-element catalytic carrier.
2. the ternary catalyzing unit that ultraviolet light according to claim 1 is strengthened, which is characterized in that the three-element catalytic carrier machine
Structure includes：
Multiple metal electrode boards, parallel interval certain distance arrangement, and in the metal electrode plate surface noble metal-coating
Catalyst；
Holding mechanism is fixedly supported between the multiple metal electrode board, and vertical with the metal electrode board.
3. the ternary catalyzing unit that ultraviolet light according to claim 2 is strengthened, which is characterized in that the ultraviolet radiator is described in
Shell is axially disposed within the both sides of the three-element catalytic carrier body.
4. the ternary catalyzing unit that ultraviolet light according to claim 3 is strengthened, which is characterized in that the metal electrode board uses
The densely covered net of wire or planar metal plate.
5. the ternary catalyzing unit that ultraviolet light according to claim 1 is strengthened, which is characterized in that the three-element catalytic carrier machine
Structure includes：
More thin metal pipes surround cylindrical cavity along the shell is axially evenly distributed, and in the thin metal pipe table
Face noble metal-coating catalyst；
Holder is fixedly supported between the more thin metal pipes.
6. the ternary catalyzing unit that ultraviolet light according to claim 5 is strengthened, which is characterized in that the ultraviolet radiator is described in
Shell is axially disposed within the center of the cylindrical cavity.
7. the ternary catalyzing unit that the ultraviolet light according to claim 1,3 or 6 is strengthened, which is characterized in that the ultraviolet radiator
A length of 100~the 320nm of ultraviolet light wave sent out.
8. the ternary catalyzing unit that ultraviolet light according to claim 7 is strengthened, which is characterized in that set on the outside of the ultraviolet radiator
There is heat insulating protecting apparatus.
9. the ternary catalyzing unit that ultraviolet light according to claim 8 is strengthened, which is characterized in that the heat insulating protecting apparatus is adopted
With laminated glass material.
10. the ternary catalyzing unit that ultraviolet light according to claim 1 is strengthened, which is characterized in that the both ends of the shell point
Not She You the first wiring hole and the second wiring hole, power cord accesses ultraviolet radiator from first wiring hole and the second wiring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820381367.6U CN207989117U (en) | 2018-03-21 | 2018-03-21 | A kind of ternary catalyzing unit that ultraviolet light is strengthened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820381367.6U CN207989117U (en) | 2018-03-21 | 2018-03-21 | A kind of ternary catalyzing unit that ultraviolet light is strengthened |
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| CN207989117U true CN207989117U (en) | 2018-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223084A (en) * | 2018-03-21 | 2018-06-29 | 吉林大学 | The ternary catalyzing unit that a kind of ultraviolet light is strengthened |
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2018
- 2018-03-21 CN CN201820381367.6U patent/CN207989117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223084A (en) * | 2018-03-21 | 2018-06-29 | 吉林大学 | The ternary catalyzing unit that a kind of ultraviolet light is strengthened |
| CN108223084B (en) * | 2018-03-21 | 2023-12-15 | 吉林大学 | Ultraviolet reinforced three-way catalyst |
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