CN112228190A - Economical three-way catalytic converter for photocatalyst type vehicle - Google Patents
Economical three-way catalytic converter for photocatalyst type vehicle Download PDFInfo
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- CN112228190A CN112228190A CN202011106404.0A CN202011106404A CN112228190A CN 112228190 A CN112228190 A CN 112228190A CN 202011106404 A CN202011106404 A CN 202011106404A CN 112228190 A CN112228190 A CN 112228190A
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- Prior art keywords
- photocatalyst
- transparent heat
- vehicle
- heat conduction
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/101—Three-way catalysts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2086—Activating the catalyst by light, photo-catalysts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an economical three-way catalytic converter for a photocatalyst vehicle, which comprises a shell, a self-luminous photocatalyst tube, an opening, a copper core water passing cable and a plurality of light emitting diodes, wherein the shell is an automobile exhaust channel; the water passing cable with the copper core consists of two groups of conductors, a transparent heat conduction layer and a waterproof rubber pipe at the outermost layer, wherein the middle layers of the transparent heat conduction layer and the waterproof rubber pipe are used for passing vehicle-mounted cooling liquid; the self-light source photocatalyst tube is a composite structure consisting of the middle part of a copper core water passing cable and photocatalyst composite quartz glass, the composite structure is provided with two groups of conductors from inside to outside, an ultraviolet LED sheet, a transparent heat conduction layer, a cooling circulating water channel and a quartz glass tube of which the outermost surface is fixed with photocatalyst particles; the transparent heat conducting layer is specifically a biphenyl polyimide film; the photocatalyst particles are specifically titanium dioxide particles. The invention does not adopt precious metal, has lower cost, spontaneous type and photocatalyst and is easy to clean.
Description
Technical Field
The invention relates to the technical field of electrical environment-friendly equipment, in particular to an economical photocatalyst type three-way catalytic converter for a vehicle.
Background
The three-way catalyst is one of the most important external purifier installed in automobile exhaust system and can convert harmful gas exhausted from automobile exhaust, such as CO, HC hydrocarbon, NOx, etc. into harmless carbon dioxide, water and nitrogen via oxidation and reduction. The catalyst can simultaneously convert three main harmful substances in the exhaust gas into harmless substances, so the catalyst is called as a ternary catalyst. The technical principle is that when high-temperature automobile exhaust passes through the purification device, the purifying agent in the three-way catalyst enhances the activity of CO, HC and NOx to promote the three gases to perform certain oxidation-reduction chemical reaction, wherein CO is oxidized into colorless and nontoxic carbon dioxide gas at high temperature; HC compounds are oxidized at high temperature to water (H20) and carbon dioxide; NOx is reduced to nitrogen and oxygen. Three kinds of harmful gases are changed into harmless gases, so that the automobile exhaust can be purified.
The disadvantages are that: 1. when the temperature of an exhaust system is not raised immediately after an automobile is started or in northern cold winter days, the optimal catalytic temperature of 550-700 ℃ is not reached, so that the catalytic efficiency is not high, and the specific expression is that the proportion of harmful gases in the discharged tail gas is large; 2. the catalyst commonly used at present only contains noble metals of platinum, rhodium and palladium, has high cost and can not be regenerated, and is easy to be polluted by elements such as lead and sulfur in gasoline, phosphorus in engine oil and the like to cause failure and even aging; 3. after the surface is covered by unburned solid carbon or other organic matters in the exhaust gas, the catalytic efficiency is obviously reduced because the direct contact area with the exhaust gas is reduced.
Therefore, an economical photocatalyst-type three-way catalytic converter for vehicles, which does not adopt precious metals, has low cost, is self-generating, has a photocatalyst and is easy to clean, is urgently needed in the market.
Disclosure of Invention
The invention aims to provide an economical photocatalyst type three-way catalytic converter for a vehicle, which does not adopt precious metal, has lower cost, self-generation and easy cleaning of photocatalyst.
In order to achieve the purpose, the invention adopts the following technical scheme: an economical three-way catalytic converter for a photocatalyst vehicle comprises a shell, a self-luminous source photocatalyst tube, an opening and a copper core water passing cable, wherein the shell is a tail gas channel of the vehicle; the water-passing cable with the copper core is provided with two groups of conductors, a transparent heat conduction layer and an outermost waterproof rubber tube layer from inside to outside, wherein the transparent heat conduction layer and the outermost waterproof rubber tube layer are coated outside the two groups of conductors; the light source photocatalyst tube is a composite structure consisting of the middle part of a copper core water passing cable and photocatalyst composite quartz glass, the composite structure is provided with two groups of conductors from inside to outside, all positive and negative electrodes are separated and are respectively connected with the two groups of conductors in parallel, the irradiation directions of the 8 groups to 10 groups of conductors which take 6 sheets as one group are counted, an ultraviolet LED sheet with the single-sheet power of 15-25 mW is emitted outwards from the center of a cross section, a transparent heat conduction layer which is sleeved outside the two groups of conductors and the ultraviolet LED sheet and extends from the copper core water passing cable, a cooling circulation water channel and the quartz glass tube of which the outermost surface is fixed with photocatalyst particles, and the channel of the cooling circulation water channel is a gap between the transparent heat conduction layer and the quartz glass tube; the transparent heat conducting layer is specifically a biphenyl polyimide film; the photocatalyst particles are specifically titanium dioxide particles.
In the above economical three-way catalytic converter for a photocatalyst vehicle, the biphenyl polyimide film used as the transparent heat conducting layer is Upilex S produced by Xingshou corporation of Japan.
In the above economical photocatalyst-type three-way catalytic converter for vehicles, the light emitted by the ultraviolet LED sheet is specifically ultraviolet light with a wavelength of 380nm-400 nm.
In the above-mentioned economical three-way catalytic converter for a photocatalyst vehicle, the two sets of conductors are respectively connected to the positive and negative ends of the vehicle-mounted 12V dc power supply through switches.
In the above three-way catalytic converter for an economical photocatalyst vehicle, the vehicle-mounted coolant passing through the intermediate layer between the transparent heat conduction layer and the waterproof rubber tube is coolant which is just output from the coolant tank and has not yet passed through the engine area.
In the above economical three-way catalyst for vehicle with photocatalyst, the cooling liquid is colorless 1, 2-ethylene glycol.
Compared with the prior art, the invention has the following advantages: (1) the invention is actually an invention linked with the running state of the vehicle, when the vehicle is not started, the power supply is disconnected, and the invention does not work at all and does not generate consumption. When the engine is started, the cooling liquid starts to circulate, the power supply starts to store electricity excessively (the electricity generated by the power supply is larger than the consumed electricity in the running process of the vehicle, a large amount of electric energy is wasted after the battery is fully stored, the output power of the vehicle power supply is generally different from 120W to 480W according to different vehicle types), the power of the LED lamp is matched with the power of the LED lamp, the output power of the vehicle with larger oil consumption is larger, the number of lamp groups which can be supported is larger, the area of an excitable photocatalyst is larger, the tail gas volume which can be processed is larger, and the matching performance is very good. (2) In the self-luminous photocatalyst tube part, because light generated by a light source has large loss when passing through a plurality of different materials (although the light generated by the light source is colorless and transparent materials, the light can still generate large loss), only about 60-65% of light energy can reach the photocatalyst material to excite the activity of the photocatalyst material, under the condition, the integral catalytic degradation rate of the self-luminous photocatalyst tube part is 74-79%, and the self-luminous photocatalyst tube part is still slightly superior to that of a traditional precious metal three-way catalyst (the traditional precious metal three-way catalyst has the CO degradation efficiency of 58-65%, the HC compound of 42-48%, the NOx of 75-83% and the comprehensive efficiency of about 65-70%) under the optimal working environment, and the self-luminous photocatalyst tube part has a considerable improvement space due to technical problems. (3) The invention does not adopt precious metal, only adopts the negligible titanium dioxide for the photocatalyst and the quartz glass with the equivalent value compared with the ceramic carrier of the prior three-way catalyst, has controllable cost, wide source and good economy and is suitable for popularization. (4) The invention is self-luminous, and solves the problem that the photocatalyst technology cannot be applied because no light exists in the tail gas emission environment in the prior art. (5) The titanium dioxide adopted by the invention also has the functions of dust removal and self-cleaning, and the quartz glass is easy to clean, and the photocatalyst mainly guides light from inside to outside and is hardly influenced by surface pollution, so the service life of the invention is longer. Therefore, the invention has the characteristics of no precious metal, low cost, spontaneous type, photocatalyst and easy cleaning.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of a self-illuminating photocatalyst tube according to the present invention;
in the figure, a shell 1, a self-light source photocatalyst tube 2, an opening 3, a steel shell copper core wire 4, an ultraviolet LED sheet 5, a transparent heat conduction layer 6, a cooling circulating water channel 7, a quartz glass tube 8, photocatalyst particles 9 and a conductor 10.
Detailed Description
Example 1:
as shown in fig. 1 and fig. 2, the three-way catalytic converter for vehicle with light source comprises a housing 1 with an automobile exhaust passage therein, a light source photocatalyst tube 2 disposed in the housing 1, an opening 3 at the junction of the light source photocatalyst tube 2 and the housing 1, and a copper core water passing cable 4 connecting the light source photocatalyst tubes 2 in the same direction through the opening 3; the copper core water passing cable 4 is provided with two groups of conductors 10 which are respectively connected to the positive end and the negative end of a vehicle-mounted 12V direct current power supply through a switch, a transparent heat conduction layer 6 coated outside the two groups of conductors 10 and three outermost layers of waterproof rubber pipes from inside to outside, wherein the middle layers of the transparent heat conduction layer 6 and the waterproof rubber pipes are used for passing vehicle-mounted cooling liquid which is just output from a cooling liquid tank and does not pass through an engine area, the vehicle-mounted cooling liquid is colorless 1, 2-ethylene glycol, the joint of the waterproof rubber pipes and the opening 3 is sealed and glued by high-temperature-resistant sealant, and the transparent heat conduction layer 6 and the two groups of conductors 10 in the transparent heat conduction layer directly extend; the light source photocatalyst tube 2 is a composite structure consisting of the middle part of a copper core water passing cable 4 and photocatalyst composite quartz glass, the composite structure is provided with two groups of conductors 10 from inside to outside, all positive and negative electrodes are separated and are respectively connected with the two groups of conductors 10 in parallel, the irradiation directions of the 8 groups to 10 groups of conductors take 6 pieces as one group are respectively 8 groups to 10 groups, the ultraviolet LED pieces 5 with single piece power of 15mW to 25mW and emission wavelength of 380nm to 400nm ultraviolet light are emitted outwards from the center of a cross section circle, a transparent heat conduction layer 6 extending from the copper core water passing cable 4 and sleeved outside the two groups of conductors 10 and the ultraviolet LED pieces 5, a cooling circulation water channel 7 and the quartz glass tube 8 of which the outermost layer surface is fixed with photocatalyst particles 9, and the channel of the cooling circulation water channel 7 is a gap between the transparent heat conduction layer 6 and; the transparent heat conduction layer 6 is specifically Upilex S produced by Xingyu corporation of Japan; the photocatalyst particles 9 are specifically titanium dioxide particles.
The three-way catalyst produced according to the embodiment is practically applicable to the condition that the degradation efficiency of tail gas is not influenced when the three-way catalyst is started in a cooling mode or in winter, and the overall catalytic degradation rate is in the range of 74% -79% in any case, the same below.
Example 2:
the whole is in accordance with example 1, with the difference that
The transparent heat conduction layer 6 is made of biphenyl polyimide film, specifically Uplix R produced by Xingyi corporation of Japan;
the light emitted by the ultraviolet LED sheet 5 is ultraviolet light with the wavelength of 350nm-380 nm;
the two groups of conductors 10 are connected with the vehicle-mounted cigarette lighter and controlled by a vehicle-mounted cigarette lighter switch;
the cooling liquid is red semitransparent 1, 2-ethylene glycol;
example 3:
the whole is in accordance with example 1, with the difference that
The light emitted by the ultraviolet LED sheet 5 is ultraviolet light with the wavelength of 355nm-375 nm;
the two groups of conductors 10 are directly connected with the anode and the cathode of the vehicle-mounted battery without a switch;
the cooling liquid is green translucent 1, 2-ethylene glycol;
the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides an automobile-used three way catalyst converter of economical photocatalyst formula which characterized in that: the three-way catalytic converter for the vehicle comprises a shell (1) with an automobile exhaust channel inside, a self-light source photocatalyst tube (2) arranged in the shell (1), an opening (3) at the junction of the self-light source photocatalyst tube (2) and the shell (1), and copper core water passing cables (4) which are connected with the self-light source photocatalyst tubes (2) in parallel in corresponding same direction through the opening (3); the copper core water passing cable (4) is provided with two groups of conductors (10) from inside to outside, a transparent heat conduction layer (6) wrapping the two groups of conductors (10) and three outermost layers of waterproof rubber pipes, wherein the middle layers of the transparent heat conduction layer (6) and the waterproof rubber pipes are used for passing through vehicle-mounted cooling liquid, the joints of the waterproof rubber pipes and the openings (3) are sealed and glued by high-temperature-resistant sealant, and the transparent heat conduction layer (6) and the two groups of conductors (10) in the transparent heat conduction layer directly extend into the light source photocatalyst tubes (2); the self-light source photocatalyst tube (2) is a composite structure formed by the middle part of a copper core water passing cable (4) and photocatalyst composite quartz glass, the composite structure is provided with two groups of conductors (10) from inside to outside, 8-10 groups of ultraviolet LED sheets (5) which are separated from positive and negative electrodes and are respectively connected with the two groups of conductors (10) in parallel, take 6 sheets as one group, emit single-sheet power of 15-25 mW from the center of a circle of a section in the irradiation direction, a transparent heat conduction layer (6) which is sleeved outside the two groups of conductors (10) and the ultraviolet LED sheets (5) and extends from the inside of a copper core water passing cable (4), a cooling circulation water channel (7) and a quartz glass tube (8) of which the outermost surface is fixed with photocatalyst particles (9), wherein the channel of the cooling circulation water channel (7) is a gap between the transparent heat conduction layer (6) and the quartz glass tube (8); the transparent heat conduction layer (6) is specifically a biphenyl polyimide film; the photocatalyst particles (9) are specifically titanium dioxide particles.
2. The economical three-way catalyst for photocatalytic vehicle as set forth in claim 1, wherein: the biphenyl polyimide film used as the transparent heat conduction layer (6) is specifically Uplix S produced by the Xin product company of Japan.
3. The economical three-way catalyst for photocatalytic vehicle as set forth in claim 1, wherein: the light emitted by the ultraviolet LED sheet (5) is ultraviolet light with the wavelength of 380nm-400 nm.
4. The economical three-way catalyst for photocatalytic vehicle as set forth in claim 1, wherein: the two groups of conductors (10) are respectively connected to the positive end and the negative end of the vehicle-mounted 12V direct-current power supply through switches.
5. The economical three-way catalyst for photocatalytic vehicle as set forth in claim 1, wherein: the vehicle-mounted cooling liquid passing through the middle layers of the transparent heat conduction layer (6) and the waterproof rubber tube is specifically cooling liquid which is just output from a cooling liquid tank and does not pass through an engine area.
6. The economical three-way catalyst for photocatalytic vehicle as set forth in claim 5, wherein: wherein the cooling liquid is colorless 1, 2-ethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106404.0A CN112228190A (en) | 2020-10-16 | 2020-10-16 | Economical three-way catalytic converter for photocatalyst type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106404.0A CN112228190A (en) | 2020-10-16 | 2020-10-16 | Economical three-way catalytic converter for photocatalyst type vehicle |
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| Publication Number | Publication Date |
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| CN112228190A true CN112228190A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011106404.0A Pending CN112228190A (en) | 2020-10-16 | 2020-10-16 | Economical three-way catalytic converter for photocatalyst type vehicle |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001008787A1 (en) * | 1999-08-03 | 2001-02-08 | Volkswagen Aktiengesellschaft | Device for the photocatalytic conversion of exhaust gas in an exhaust gas cleaning system |
| CN2787217Y (en) * | 2005-04-30 | 2006-06-14 | 中国地质大学（武汉） | Film type photo-catalytic air cleaner for vehicle |
| JP2008119676A (en) * | 2006-11-13 | 2008-05-29 | Tds:Kk | Method for decomposing/removing harmful substance by virtue of photocatalyst, and light sterilizer |
| CN202560352U (en) * | 2012-04-06 | 2012-11-28 | 杨德利 | Device for ultraviolet-based oxidative decomposition of pollutant in internal combustion engine exhaust gas |
| CN105396459A (en) * | 2015-12-18 | 2016-03-16 | 中国商用飞机有限责任公司 | Photocatalyst honeycomb subassembly, and photocatalyst purification device |
| CN207546219U (en) * | 2017-11-16 | 2018-06-29 | 中国电建集团港航建设有限公司 | A kind of air purifier of photocatalyst catalytic exhaust |
| CN210052541U (en) * | 2019-06-03 | 2020-02-11 | 扬州市德友线缆有限公司 | Composite cable for ultra-vacuum environment |
| CN210410217U (en) * | 2019-07-22 | 2020-04-28 | 福建云驰智能装备制造有限公司 | Light oxygen catalytic unit of environmental protection exhaust-gas treatment equipment |
-
2020
- 2020-10-16 CN CN202011106404.0A patent/CN112228190A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001008787A1 (en) * | 1999-08-03 | 2001-02-08 | Volkswagen Aktiengesellschaft | Device for the photocatalytic conversion of exhaust gas in an exhaust gas cleaning system |
| CN2787217Y (en) * | 2005-04-30 | 2006-06-14 | 中国地质大学（武汉） | Film type photo-catalytic air cleaner for vehicle |
| JP2008119676A (en) * | 2006-11-13 | 2008-05-29 | Tds:Kk | Method for decomposing/removing harmful substance by virtue of photocatalyst, and light sterilizer |
| CN202560352U (en) * | 2012-04-06 | 2012-11-28 | 杨德利 | Device for ultraviolet-based oxidative decomposition of pollutant in internal combustion engine exhaust gas |
| CN105396459A (en) * | 2015-12-18 | 2016-03-16 | 中国商用飞机有限责任公司 | Photocatalyst honeycomb subassembly, and photocatalyst purification device |
| CN207546219U (en) * | 2017-11-16 | 2018-06-29 | 中国电建集团港航建设有限公司 | A kind of air purifier of photocatalyst catalytic exhaust |
| CN210052541U (en) * | 2019-06-03 | 2020-02-11 | 扬州市德友线缆有限公司 | Composite cable for ultra-vacuum environment |
| CN210410217U (en) * | 2019-07-22 | 2020-04-28 | 福建云驰智能装备制造有限公司 | Light oxygen catalytic unit of environmental protection exhaust-gas treatment equipment |
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Application publication date: 20210115 |