CN219391940U - Test device for testing performance of photocatalytic material in decomposing tail gas - Google Patents
Test device for testing performance of photocatalytic material in decomposing tail gas Download PDFInfo
- Publication number
- CN219391940U CN219391940U CN202320453978.8U CN202320453978U CN219391940U CN 219391940 U CN219391940 U CN 219391940U CN 202320453978 U CN202320453978 U CN 202320453978U CN 219391940 U CN219391940 U CN 219391940U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- reaction chamber
- photocatalytic material
- testing
- test device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Catalysts (AREA)
Abstract
The utility model relates to a test device for testing the property of photocatalytic material for decomposing tail gas, which comprises: the device comprises a reaction chamber container provided with a tail gas reaction chamber, wherein the tail gas reaction chamber is provided with a photocatalytic material unit and an air heating device, the photocatalytic material unit comprises a fixed bracket and a test piece clamping groove, the fixed bracket is connected with the test piece clamping groove through a lifting bracket, and the air heating device is connected with a temperature controller; the tail gas reaction chamber is respectively connected with a tail gas container, a vacuum pump and a tail gas analyzer through a tail gas inlet pipe, an air exhaust pipe and a tail gas outlet pipe; the top of the reaction chamber container is provided with a sealing cover, and the sealing cover is detachably provided with an illumination unit. The utility model has the advantages of no limitation on the use place, direct utilization of sunlight as a reaction light source, manual control of the reaction light source by using an ultraviolet lamp, manual control of the reaction temperature of tail gas, simple manufacture of the testing device, low cost and convenient operation.
Description
Technical Field
The utility model belongs to the technical field of road material engineering, and particularly relates to a device for testing the performance of photocatalytic materials in decomposing automobile exhaust.
Background
The holding capacity of resident automobiles in China is increased year by year, so that a large amount of automobile exhaust is discharged into the air, the pollution to the environment, particularly the pollution to the atmosphere, is aggravated, and the ecological environment problem is further increased. Exhaust gases from automobiles contain a number of harmful components, e.g. NOx, CO, HC, SO 2 Etc., wherein NOx, CO, SO 2 These harmful gases are extremely polluting to the air and are very difficult to degrade. In response to this problem, the use of novel nano-photocatalytic techniques, i.e., nano-TiO, can be considered 2 Photocatalytic technology. The nano photocatalysis technology is a novel pollution control technology which is used for reducing the harm of automobile exhaust by being greatly researched in various countries at present, is a research hot spot in the field of ecological environment protection, and has important significance for improving the air quality and reducing the pollution of the automobile exhaust when being applied to the construction of traffic infrastructures.
Nanomaterial for the preparation of a nanoparticleIs an emerging material subject, and has wide application, rapid development and wide application prospect. Wherein, nanometer TiO 2 As a photocatalytic material, the photocatalytic material has the advantages of stable chemical property, high catalytic activity, high degradation rate, repeated use, no harm to environment, green environmental protection and the like, shows great superiority in the field of road engineering, becomes a research hotspot in the field of material science, and is one of the photocatalytic materials with good development prospect at present. The photocatalytic material TiO has been used in recent years 2 The degradation tail gas added into the paint starts to be in the brand-new angle. The aspect of the coating: the performances of the paint such as brushing resistance, compression resistance, self-cleaning, aging resistance and the like are improved; in terms of photocatalytic degradation of tail gas: the coating provides a degradation tail gas space for the photocatalytic material, has the characteristics of long service life, washing resistance and the like, and can improve the recycling property of the photocatalytic material for degrading tail gas; in terms of cost, the cost of the coating is low, and the modified photocatalytic material TiO 2 The cost is also low. Therefore, the coating can degrade tail gas under the decorative condition, thereby achieving win-win purpose.
With the development of nano photocatalytic materials, more and more researches are carried out on test devices for testing the performance of degrading tail gas of new materials, for example, CN206074530U discloses a device for degrading the performance of automobile tail gas by photocatalytic coating, and CN109142352A discloses a device for detecting the degradation of tail gas of a photocatalytic pavement indoors and outdoors. However, the reaction conditions such as temperature, indoor ultraviolet irradiation intensity, outdoor sunlight utilization rate and the like of the existing photocatalytic degradation automobile exhaust detection device in the test process cannot be completely controlled, so that the reliability of the results obtained in the detection process is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the test device for testing the automobile exhaust gas decomposition performance of the photocatalytic coating, which has low cost, good effect and easy operation, can be used for indoor detection and outdoor detection, and overcomes the defect that the traditional test device is not suitable for outdoor test; the defect that the existing indoor and outdoor testing device is complex in structure, inflexible in temperature control and incapable of being adaptively adjusted according to the sunlight irradiation angle is overcome.
In order to achieve the above purpose, the present utility model adopts the following scheme:
a test device for testing photocatalytic material decomposes tail gas performance includes: the device comprises a reaction chamber container provided with a tail gas reaction chamber, wherein the tail gas reaction chamber is provided with a photocatalytic material unit and an air heating device, the photocatalytic material unit comprises a fixed bracket and a test piece clamping groove, the fixed bracket is connected with the test piece clamping groove through a lifting bracket, and the air heating device is connected with a temperature controller;
the tail gas reaction chamber is respectively connected with a tail gas container, a vacuum pump and a tail gas analyzer through a tail gas inlet pipe, an air exhaust pipe and a tail gas outlet pipe;
the top of the reaction chamber container is provided with a sealing cover, and the sealing cover is detachably provided with an illumination unit. When the utility model is adopted for testing, the photocatalytic material can be placed in the test piece clamping groove;
according to the utility model, preferably, the illumination unit comprises a lamp holder provided with an ultraviolet lamp, and the ultraviolet lamp is connected with the light source controller through a wire;
further preferably, the number of the ultraviolet lamps is two or more, preferably 3 to 5. The irradiation quantity of the ultraviolet lamp can be selectively controlled in the test process so as to obtain different photocatalysis reaction effects. The illumination unit can be separated from the sealing cover, when the detection is carried out indoors, sunlight is simulated through the illumination unit, when the detection is carried out outdoors, the illumination unit is removed, and the photocatalysis detection is carried out through sunlight irradiation. Thus, the device is more flexibly suitable for indoor and outdoor photocatalysis detection;
according to the utility model, preferably, the test piece clamping groove in the photocatalytic material unit is of a square structure, and the lifting support is a lifting mechanism distributed at four corners of the test piece clamping groove. When the test is carried out under the outdoor condition, the lifting support can flexibly adjust the inclination angle according to the irradiation direction of sunlight, and the elevation angle is preferably 30 degrees, so that the sunlight can be better utilized. When the experiment is carried out under the indoor condition, the lifting height can be flexibly adjusted according to the radiation intensity of the ultraviolet lamp, and the preferable height is 0.2 times of the height of the tail gas reaction chamber, so that the natural environment can be better simulated;
according to the present utility model, preferably, the air heating device is an electric heating plate. When the detection environment does not meet the temperature requirement, the electric heating plate can be started to perform corresponding heating, so that the temperature in the tail gas reaction chamber is maintained in a certain range, and the photocatalytic decomposition performance of the photocatalytic material under natural conditions at different temperatures is simulated as far as possible;
according to the utility model, preferably, the top of the reaction chamber container is provided with a negative pressure meter, so that the vacuum state inside the tail gas reaction chamber in the test process can be conveniently known;
according to the utility model, preferably, a fan is arranged in the tail gas reaction chamber, and the arrangement of the fan can ensure uniform gas distribution in the tail gas reaction chamber; further preferably, fans are provided at the upper and bottom portions of the exhaust reaction chamber;
according to the utility model, preferably, the reaction chamber container, the tail gas reaction chamber and the sealing cover are all transparent toughened glass members. The toughened glass has excellent light transmittance, and can reduce the light transmittance loss to the greatest extent. Further preferred, the geometry of the off-gas reaction chamber is: 500mm long by 380mm wide by 360mm high;
according to the utility model, preferably, the distance between the tail gas outlet pipe and the bottom of the tail gas reaction chamber is 180mm, and the diameter of the tail gas outlet pipe is 15mm; further preferably, a tail gas outlet valve is arranged on the tail gas outlet pipe;
preferably, the distance between the tail gas inlet pipe and the bottom of the tail gas reaction chamber is 200mm, and the diameter of the tail gas inlet pipe is 15mm; further preferably, the exhaust gas inlet pipe is provided with an exhaust gas inlet valve;
preferably, the distance between the air extraction pipe and the bottom of the tail gas reaction chamber is 85mm, and the diameter of the air extraction pipe is 15mm; further preferably, the air extraction pipe is provided with an air extraction valve.
In the utility model, the application method of the tail gas degradation coating is a spraying method, and nano TiO is used 2 Mixing photocatalytic material and binder in a certain proportion, spraying the mixture on cement panel orAnd (3) on the asphalt panel, curing for 20-30 minutes to obtain the nano photocatalytic cement panel or the nano photocatalytic asphalt panel, optionally placing the nano photocatalytic cement panel or the nano photocatalytic asphalt panel in a tail gas reaction chamber in the test process, introducing tail gas, and detecting the degradation effect of the sample panel on the tail gas by a tail gas analyzer under a certain temperature environment to measure the photocatalytic effect of the nano photocatalytic cement panel coating or the nano photocatalytic asphalt panel coating on automobile tail gas.
The utility model has the beneficial effects that:
1. according to the utility model, the ultraviolet lamp is arranged at the upper part of the tail gas reaction chamber and is connected with the light source controller through the lead, and the ultraviolet radiation amount can be controlled manually according to different environmental conditions, so that the influence of the ultraviolet lamp on the tail gas reaction chamber is reduced to the minimum. The toughened glass has good ultraviolet light transmission performance, and the tail gas reaction chamber prepared by the toughened glass is placed under sunlight, so that the degradation performance of the photocatalytic coating on automobile tail gas under the actual natural illumination condition can be tested; the ultraviolet radiation quantity of the photocatalytic coating can be controlled by controlling the power and the quantity of the ultraviolet lamps under indoor conditions, so that the photocatalytic decomposition performance of automobile exhaust under different weather conditions in different areas can be simulated. The testing device is more flexible and convenient and has strong applicability.
2. The utility model can artificially control the reaction temperature, and a temperature feedback control system is formed by the air heating device and the temperature controller, so that the reaction temperature in the tail gas reaction chamber is controlled, different light source conditions are added, and the photocatalytic decomposition performance of the photocatalytic material under different illumination conditions can be well simulated.
3. In the utility model, the arrangement of the fan can effectively prevent various harmful gases from layering in the tail gas reaction chamber due to the difference of molecular weights. Meanwhile, in order to improve the efficiency of the photocatalysis test, the power of a fan can be properly improved, the gas fluidity in the reaction chamber is enhanced, and the contact rate of harmful gas and catalytic materials in the tail gas reaction chamber is improved, so that the reaction efficiency of the device is further improved.
4. The utility model is not limited in use place, based on different test purposes, not only can directly utilize sunlight as a reaction light source, but also can manually control the reaction light source by using an ultraviolet lamp; meanwhile, the reaction temperature can be controlled manually, the service time is not limited, the testing device is simple to manufacture, the cost is low, and the operation is convenient.
Drawings
FIG. 1 is a schematic diagram of the main structure of the test device of the present utility model.
FIG. 2 is a schematic structural view of a photocatalytic material unit in the test device according to the present utility model.
FIG. 3 is a top view of a photocatalytic material unit in a test device according to the present utility model.
Wherein: the ultraviolet lamp is characterized in that the ultraviolet lamp is arranged at 1, the lamp holder is arranged at 2, the negative pressure meter is arranged at 3, the sealing cover is arranged at 4, the air heating device is arranged at 5, the temperature controller is arranged at 6, the fan is arranged at 7, the exhaust gas inlet valve is arranged at 8, the exhaust gas inlet pipe is arranged at 9, the exhaust gas container is arranged at 10, the vacuum pump is arranged at 11, the air extraction valve is arranged at 12, the air extraction pipe is arranged at 13, the exhaust gas analyzer is arranged at 14, the exhaust gas outlet pipe is arranged at 15, the exhaust gas outlet valve is arranged at 16, the lead is arranged at 17, the light source controller is arranged at 18, the reaction chamber container is arranged at 19, the exhaust gas reaction chamber is arranged at 20, the photocatalytic coating is arranged at 21, the test piece clamping groove is arranged at 22, the lifting bracket is arranged at 23, and the fixing bracket is arranged at 24.
Detailed Description
For a better understanding of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a test apparatus for testing the performance of photocatalytic material for decomposing exhaust gas, comprising: a reaction chamber container 19 provided with a tail gas reaction chamber 20, wherein the tail gas reaction chamber 20 is provided with a photocatalytic material unit and an air heating device 5, the photocatalytic material unit comprises a fixed bracket 24 and a test piece clamping groove 22, the fixed bracket 24 is connected with the test piece clamping groove 22 through a lifting bracket 23, and the air heating device 5 is connected with the temperature controller 6;
the tail gas reaction chamber 20 is respectively connected with the tail gas container 10, the vacuum pump 11 and the tail gas analyzer 14 through the tail gas inlet pipe 9, the air exhaust pipe 13 and the tail gas outlet pipe 15;
the top of the reaction chamber container 19 is provided with a sealing cover 4, and the sealing cover 4 is detachably provided with an illumination unit.
In this embodiment, the reaction chamber container 19, the tail gas reaction chamber 20 and the sealing cover 4 are all transparent tempered glass members. The toughened glass has excellent light transmittance, and can reduce the light transmittance loss to the greatest extent. The geometry of the exhaust reaction chamber 20 is: 500mm long by 380mm wide by 360mm high.
The distance between the tail gas outlet pipe 15 and the bottom of the tail gas reaction chamber 20 is 180mm, and the diameter of the tail gas outlet pipe 15 is 15mm; a tail gas outlet valve 16 is arranged on the tail gas outlet pipe 15;
the distance from the tail gas inlet pipe 9 to the bottom of the tail gas reaction chamber 20 is 200mm, and the diameter of the tail gas inlet pipe 9 is 15mm; the tail gas inlet pipe 9 is provided with a tail gas inlet valve 8;
the distance from the air extraction pipe 13 to the bottom of the tail gas reaction chamber 20 is 85mm, and the diameter of the air extraction pipe 13 is 15mm; the air extraction pipe 13 is provided with an air extraction valve 12.
In this embodiment, the air heating device 5 is an electric heating plate. When the detection environment does not meet the temperature requirement, the electric heating plate can be started to perform corresponding heating, so that the temperature in the tail gas reaction chamber 20 is maintained within a certain range, and the photocatalytic decomposition performance of the photocatalytic coating under natural conditions at different temperatures can be simulated as much as possible.
In this embodiment, the illumination unit is provided with an ultraviolet lamp 1 and a lamp holder 2, and the ultraviolet lamp 1 is connected with a light source controller 18 through a wire 17; the number of the ultraviolet lamps 1 is 3. The irradiation quantity of the ultraviolet lamp 1 can be selectively controlled in the test process so as to obtain different photocatalysis reaction effects. The illumination unit can be separated from the sealing cover 4, and when the detection is carried out indoors, sunlight is simulated through the illumination unit, and when the detection is carried out outdoors, the illumination unit is removed, and the photocatalysis detection is carried out through sunlight irradiation. Thus, the device is more flexibly suitable for indoor and outdoor photocatalysis detection.
In this embodiment, the test piece clamping groove 22 in the photocatalytic material unit has a square structure, and the lifting support 23 is a lifting mechanism distributed at four corners of the test piece clamping groove 22. When tested under outdoor conditions, the lifting support 23 can flexibly adjust the inclination angle, preferably the elevation angle of 30 degrees, according to the irradiation direction of sunlight so as to better utilize the sunlight. When the test is performed under indoor conditions, the lifting height can be flexibly adjusted according to the radiation intensity of the ultraviolet lamp 1, and the preferred height is 0.2 times of the height of the tail gas reaction chamber 20 so as to better simulate the natural environment.
Example 2
As described in example 1, the difference is that:
the top of the reaction chamber container 19 is also provided with a negative pressure meter 3, so that the vacuum state inside the tail gas reaction chamber 20 in the test process can be known conveniently.
Example 3
As described in example 1, the difference is that:
a fan 7 is arranged in the tail gas reaction chamber 20, and the arrangement of the fan 7 can ensure uniform gas distribution in the tail gas reaction chamber 20; the fans 7 are disposed at the upper and lower portions of the inside of the exhaust reaction chamber 20.
Example 4
As described in example 1, the difference is that:
the number of the ultraviolet lamps 1 is 5.
The working procedure of the test using the present utility model is described in detail below:
when the utility model is adopted for testing, the photocatalytic coating 21 can be placed in the test piece clamping groove 22. The application method of the photocatalytic coating 21 is a spraying method, and nano TiO is used 2 The photocatalytic material and the binder are mixed according to a certain proportion, the mixture is sprayed on a cement panel or an asphalt panel, the nano photocatalytic cement panel or the nano photocatalytic asphalt panel is obtained after curing for 20-30 minutes, tail gas is introduced into a tail gas reaction chamber in a test process, and the photocatalytic effect of the nano photocatalytic cement panel coating or the nano photocatalytic asphalt panel coating on automobile tail gas is measured by detecting the degradation effect of the tail gas through a tail gas analyzer under a certain temperature environment.
(one) when tested in an indoor environment:
step one: the photocatalytic coating 21 to be tested with the length of 35cm multiplied by 5cm is placed in a test piece clamping groove 22, placed in a tail gas reaction chamber 20, and covered by a sealing cover 4;
step two: a lamp bracket 2 is arranged on the top of the tail gas reaction chamber 20, and an ultraviolet lamp 1 is arranged;
step three: closing the tail gas inlet valve 8 and the tail gas outlet valve 16, ensuring that the air in the tail gas reaction chamber 20 is isolated from the outside, opening the air extraction valve 12, then opening the vacuum pump 11 to extract the air in the tail gas reaction chamber 20, closing the air extraction valve 12 after the number of the negative pressure meter 3 is kept unchanged, and then closing the vacuum pump 11;
step four: connecting a tail gas container 10 with a tail gas inlet pipe 9, opening a tail gas inlet valve 8, introducing a certain amount of tail gas, opening an air heating device 5 before introducing the tail gas, stabilizing the temperature in a tail gas reaction chamber 20 at a certain constant value through a temperature controller 6, closing the air heating device 5 to enable the temperature in the tail gas reaction chamber 20 to be the same as the temperature under natural conditions, and closing the tail gas inlet valve 8 after the tail gas is introduced;
step five: after the concentration of the automobile exhaust is stable, starting an exhaust analyzer 14 after the fan 7 is turned on, and recording data in the automobile exhaust analyzer;
step six: detecting once every two hours, and recording the temperature of the temperature controller, the concentration of the tail gas and the data value on the tail gas analyzer in the period of time;
step seven: after the test is finished, the ultraviolet lamp 1 and the power supply 14 of the tail gas analyzer are disconnected, the automobile tail gas container 10 is closed, the air extraction valve 12 and the sealing cover 4 are opened, so that redundant automobile tail gas is removed, and the test instrument is tidied.
(II) when tested in an outdoor environment:
step one: the testing device is placed in a test road section and is placed on a road surface through a cushion block.
Step two: the position of the fixed support 24 is adjusted in advance, then the photocatalytic coating to be tested of 35cm multiplied by 5cm is placed in the test piece clamping groove 22, and the sealing cover 4 is tightly connected with the tail gas reaction chamber 20, so that the gas tightness is ensured.
Step three: the lamp holder 2 at the top of the tail gas reaction chamber 20 and the ultraviolet lamp 1 are removed, so that sunlight shielding is avoided, and the test is influenced;
step four: the lifting support 23 can be manually controlled so as to properly adjust the inclination angle according to the movement direction of the sun, and the lifting support 23 is adjusted in advance according to the length of the test time so as to better utilize the sunlight to obtain more accurate results;
the subsequent steps are the same as the indoor environment test process steps three, four, five, six and seven.
Claims (10)
1. A test device for testing photocatalytic material decomposes tail gas performance, its characterized in that, this test device includes: the device comprises a reaction chamber container provided with a tail gas reaction chamber, wherein the tail gas reaction chamber is provided with a photocatalytic material unit and an air heating device, the photocatalytic material unit comprises a fixed bracket and a test piece clamping groove, the fixed bracket is connected with the test piece clamping groove through a lifting bracket, and the air heating device is connected with a temperature controller;
the tail gas reaction chamber is respectively connected with a tail gas container, a vacuum pump and a tail gas analyzer through a tail gas inlet pipe, an air exhaust pipe and a tail gas outlet pipe;
the top of the reaction chamber container is provided with a sealing cover, and the sealing cover is detachably provided with an illumination unit.
2. The test device for testing the performance of photocatalytic material decomposing exhaust gas according to claim 1, wherein the illumination unit comprises a lamp holder provided with an ultraviolet lamp, and the ultraviolet lamp is connected with the light source controller through a wire.
3. The test device for testing the performance of photocatalytic material for decomposing exhaust gas according to claim 2, wherein the number of the ultraviolet lamps is two or more.
4. The test device for testing the tail gas decomposition performance of the photocatalytic material according to claim 1, wherein test piece clamping grooves in the photocatalytic material unit are of square structures, and the lifting support is a lifting mechanism distributed at four corners of the test piece clamping grooves.
5. The test device for testing the performance of photocatalytic material decomposing exhaust gas according to claim 1, wherein the air heating device is an electric heating plate.
6. The test device for testing the performance of photocatalytic material for decomposing tail gas according to claim 1, wherein a negative pressure meter is arranged at the top of the reaction chamber container.
7. The test device for testing the performance of photocatalytic material for decomposing exhaust gas according to claim 1, wherein a fan is provided in the exhaust gas reaction chamber.
8. The test device for testing the performance of photocatalytic material for decomposing exhaust gas according to claim 7, wherein fans are provided at the upper portion and the bottom portion in the exhaust gas reaction chamber.
9. The test device for testing the performance of photocatalytic material for decomposing tail gas according to claim 1, wherein the reaction chamber container, the tail gas reaction chamber and the sealing cover are all transparent toughened glass members.
10. The test device for testing the performance of photocatalytic material decomposing exhaust gas according to claim 1, wherein an exhaust gas outlet valve is provided on an exhaust gas outlet pipe, an exhaust gas inlet valve is provided on an exhaust gas inlet pipe, and an air extraction valve is provided on an air extraction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320453978.8U CN219391940U (en) | 2023-03-07 | 2023-03-07 | Test device for testing performance of photocatalytic material in decomposing tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320453978.8U CN219391940U (en) | 2023-03-07 | 2023-03-07 | Test device for testing performance of photocatalytic material in decomposing tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219391940U true CN219391940U (en) | 2023-07-21 |
Family
ID=87192036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320453978.8U Active CN219391940U (en) | 2023-03-07 | 2023-03-07 | Test device for testing performance of photocatalytic material in decomposing tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219391940U (en) |
-
2023
- 2023-03-07 CN CN202320453978.8U patent/CN219391940U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205374399U (en) | Test photocatalysis material decomposes test device of automobile exhaust performance | |
| Cassar et al. | Photocatalysis of cementitious materials | |
| CN202057574U (en) | Device for long-time aging tests of asphalt and asphalt mixture | |
| CN103170358A (en) | Porous g-C3N4 photocatalyst and preparation method thereof | |
| CN103920518A (en) | High-visible-light-activity sulfur-modified carbon nitride photocatalyst as well as synthetic method and application of photocatalyst | |
| CN109626354A (en) | Charcoal absorbing material based on pomelo peel and preparation method thereof | |
| CN104107700B (en) | A kind of combustion catalyst of industrial organic exhaust gas and preparation method thereof | |
| CN219391940U (en) | Test device for testing performance of photocatalytic material in decomposing tail gas | |
| CN111518441B (en) | Visible light catalysis water permeable brick and manufacturing method and application thereof | |
| CN103115999B (en) | Gas-solid phase photocatalytic reaction effect detection device and method with controllable influence factor change | |
| CN106353246A (en) | Multifunctional ageing experimental device for automatically sampling asphalt and experimental method thereof | |
| CN105214600A (en) | A kind of modified nano-titanium dioxide preparation method adapting to highway tunnel illumination condition | |
| CN2577276Y (en) | Weather-resistance testing machine for xanoon lamp | |
| CN107943177B (en) | Environmental cabin control system | |
| CN109266223A (en) | A kind of preparation method of catalytic degradation vehicle exhaust type asphalt mastic | |
| CN108043400A (en) | Au-Bi2MoO6Diatomite composite material and preparation method and application thereof | |
| Leng et al. | Study on air-purifying performance of asphalt mixture specimens coated with titanium dioxide using different methods | |
| CN114910607B (en) | Vehicle-mounted indoor and outdoor double-smoke box | |
| CN104445995B (en) | There is visible light-responded automatically cleaning Bi2ti2o7/ TiO2the preparation method of nano-wire array complex thin film | |
| CN116794118A (en) | In-based 2 O 3 NO of/ZIF-8 core-shell nanocube composite material 2 Sensor and preparation method thereof | |
| CN206074530U (en) | The test device of light catalyzed coating degraded vehicle exhaust performance | |
| CN102798564A (en) | Multi-channel gas mixed flow device | |
| KR20060116937A (en) | Accelerated weathering test method and equipment for automotive parts | |
| CN214251951U (en) | Multi-factor coupling asphalt aging test device | |
| CN110283522B (en) | Glass bead, pavement marking paint and preparation method thereof, pavement marking and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |