CN211537793U - Double-layer hemispherical photochemical smog chamber - Google Patents
Double-layer hemispherical photochemical smog chamber Download PDFInfo
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- CN211537793U CN211537793U CN202020003030.9U CN202020003030U CN211537793U CN 211537793 U CN211537793 U CN 211537793U CN 202020003030 U CN202020003030 U CN 202020003030U CN 211537793 U CN211537793 U CN 211537793U
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Abstract
The utility model discloses a double-layer hemisphere type photochemical smog chamber, which comprises a bearing platform, a hemisphere double-layer reactor and a movable protective cover; the hemispherical double-layer reactor comprises a hemispherical double-layer cover body, the hemispherical double-layer cover body covers the bearing platform to form a reaction chamber, and the middle part of the hemispherical double-layer cover body is provided with a channel for constant-temperature gas to pass through; the movable protective cover is slidably mounted on the bearing platform, so that the semispherical double-layer reactor is shielded and opened. When the outdoor conditions allow, the rolling door of the movable protective cover is opened, and the movable protective cover body moves to the backlight side to be used as an outdoor smog chamber; when outdoor conditions are not allowed, the movable protective cover body can be closed, and clean constant-temperature air is introduced into the inner channel of the hemispherical double-layer cover body, so that no obvious temperature difference exists between the inside and the outside of the hemispherical double-layer reactor.
Description
Technical Field
The utility model relates to a photochemistry experimental facilities field, concretely relates to double-deck hemisphere type photochemistry smog case.
Background
Photochemical smog is a smog pollution phenomenon which is formed by the mixture of primary pollutants and secondary pollutants, wherein the primary pollutants are hydrocarbons, nitrogen oxides and the like which are discharged into the atmosphere from pollution sources such as automobiles, factories and the like, and the smoke pollution phenomenon is called photochemical smog, wherein the primary pollutants and the secondary pollutants are generated through chemical reaction under the action of sunlight to generate secondary pollutants such as ozone, aldehyde, ketone, acid, peroxyacetyl nitrate and the like, and the mixture of the primary pollutants and the secondary pollutants participates in the photochemical reaction process.
The photochemical reaction mechanism is one of the most core contents of an air quality model, and the photochemical smog chamber experiment is an indispensable means for developing and evaluating the photochemical reaction mechanism, and the photochemical smog is generated in a complex atmospheric environment system. A photochemical experimental device for researching a photochemical smog forming mechanism is an important tool for simulating atmospheric photochemical reaction. At present known smog chamber at home and abroad is mostly the individual layer smog chamber, if not indoor type, temperature control adopts bottom water-cooling mode more, and the temperature control inaccuracy, and smog chamber generally all is airtight reaction chamber, receives sunshine and penetrates directly the back, can produce greenhouse effect in the under-deck and make the reaction chamber in temperature higher.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned problem, the utility model provides a double-deck hemisphere type photochemistry smog case adopts double-deck film mode to establish into fixed volume's smog case, and the cavity intermediate layer can let in clean constant temperature air, guarantees the internal and external no obvious difference in temperature in cabin.
The utility model discloses a double-layer hemisphere type photochemical smog chamber, which comprises a bearing platform, a hemisphere double-layer reactor and a movable protective cover;
the hemispherical double-layer reactor comprises a hemispherical double-layer cover body, the hemispherical double-layer cover body covers the bearing platform to form a reaction chamber, and the middle part of the hemispherical double-layer cover body is provided with a channel for constant-temperature gas to pass through;
the movable protective cover is installed on the bearing platform in a sliding mode, and the hemispherical double-layer reactor is shielded and opened.
As a further improvement, the hemispherical double-layer cover body comprises a support, a plurality of double-layer modules are detachably mounted on the support.
As a further improvement of the utility model, the double-deck module passes through the clamp plate to be installed on the support, the double-deck module with the junction of support is equipped with sealed the pad.
As a further improvement of the present invention, the double-layer module includes a first film, a second film and a frame;
the first film is connected with the second film, and the frame is arranged between the first film and the second film, so that a hollow sandwich structure is formed between the first film and the second film.
As a further improvement of the present invention, the first film of the double-layer module is provided with an air inlet and an air outlet;
between two adjacent double-layer modules, the air outlet of the double-layer module is connected with the air inlet of the other double-layer module, so that an air flow channel is formed between all the double-layer modules.
As a further improvement of the utility model, the movable protective cover comprises a movable protective cover body, a slide rail and a rolling door;
the rolling slats door sets up portable protection casing body one end, the slide rail is installed portable protection casing body bottom.
As a further improvement of the present invention, the rolling door can be opened and closed by a transmission mechanism.
When the double-layer hemispherical photochemical smog chamber works, the roller shutter door of the movable protective cover is opened and moved to one side of a backlight, when the double-layer hemispherical photochemical smog chamber stops working, the cover body of the movable protective cover is moved to the side of the hemispherical double-layer reactor, the roller shutter door is closed, and the purpose of protecting the hemispherical double-layer reactor and providing a dark space for preparation before an experiment of the double-layer hemispherical photochemical smog chamber is achieved.
As a further improvement of the utility model, the utility model also comprises a gas distribution system;
the gas distribution system comprises an experimental gas supply pipeline and a clean gas supply pipeline, the experimental gas supply pipeline is formed by connecting a plurality of experimental gas branch pipelines, the experimental gas branch pipelines are connected with the reaction cabin, and the clean gas supply pipeline is connected with the reaction cabin;
and the experimental gas supply pipeline and the clean gas supply pipeline are provided with mass flow meters in a matching way.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a double-layer semi-sphere type photochemical smog chamber, when the outdoor condition permits, the rolling door of the protective cover is directly opened, and the movable protective cover body is moved to the backlight side to be used as the outdoor smog chamber; when outdoor conditions are not allowed, the movable protective cover body can be closed, and clean constant-temperature air is introduced into the channel in the middle of the hemispherical double-layer cover body, so that no obvious temperature difference exists between the inside and the outside of the hemispherical double-layer reactor.
The utility model discloses hemisphere double-deck reactor takes the concatenation of the double-deck module of independent detachable to form, and convenient the dismantlement is changed, has also improved the leakproofness of hemisphere double-deck reactor simultaneously.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural diagram of a hemispherical double-layer reactor of the present invention;
FIG. 3 is a diagram of a double-layer module structure of the present invention;
FIG. 4 is a diagram of a double-layer module press-fitting structure of the present invention;
FIG. 5 is a schematic view of the first two-layer module of FIG. 1;
FIG. 6 is a schematic external view of the second two-layer module of FIG. 1;
FIG. 7 is a schematic external view of the third two-layer module of FIG. 1;
FIG. 8 is a schematic external view of a fourth two-layer module of FIG. 1;
FIG. 9 is a schematic external view of the fifth two-layer module of FIG. 1;
fig. 10 is a layout view of the bottom plate of the present invention;
FIG. 11 is a diagram of the gas distribution system of the present invention;
fig. 12 is a diagram of the temperature control system of the present invention.
In the figure: 1. a movable shield; 2. a hemispherical double-layer reactor; 3. a load-bearing platform; 4. an equipment operating space; 5. an exhaust hole; 6. a pipeline; 7. a base plate; 7-1, a bottom film pressing flange; 7-2, a manhole; 7-3, sample injection holes; 7-4, a temperature and humidity sensor; 7-5, light holes; 7-6 of a light hole protective net; 7-7, a light hole flange; 7-8, cleaning air sample inlet holes; 7-9, sampling holes; 7-10, a pressure sensor; 7-11, a turbulent fan; 8-1, a first double-layer module; 8-2, a second double-layer module; 8-3, a third double-layer module; 8-4, a fourth double-layer module; 8-5, a fifth double-layer module; 9-1, a first film; 9-2, a second film; 10. a frame; 11. a gasket; 12. a thin film solder joint; 13. a support; 14. pressing a plate; 15. an air inlet; 16. an air outlet; 17-1, a primary filter; 17-2, a primary filter; 18. a medium-grade filter; 19. an advanced filter; 20. an intermediate layer; 21. a first mass flow meter; 22. a second mass flow meter; 23. a third mass flow meter; 24. a fourth mass flow meter; 25. a fifth mass flow meter; 26. a sixth mass flow meter; 27. a seventh mass flow meter; 28. a protective bottle; 29. a humidifying tank; 30. an atomizer; 31. an ozone generator; 32. VOCs gasification furnaces; 33. and a reaction cabin.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, the utility model provides a double-layer hemispherical photochemical smog chamber, which comprises a bearing platform 3, a movable protective cover 1 and a hemispherical double-layer reactor 2, wherein the bottom of the bearing platform 3 is an equipment operation space 4; the hemispherical double-layer reactor 2 comprises a hemispherical double-layer cover body; the hemispherical double-layer cover body covers the bearing platform 3; the movable protective cover 1 is arranged on the bearing platform 3 in a sliding way, so that the semispherical double-layer reactor 2 is shielded and opened.
As shown in fig. 2-9, the hemisphere double-layer reactor 2 of the present invention is the core structure of the whole double-layer hemisphere type photochemical smog chamber. The hemispherical double-layer reactor 2 comprises a hemispherical double-layer cover body and a bottom plate 7, and the hemispherical double-layer cover body covers the bearing platform 3; the hemispherical double-layer cover body comprises a bracket 13, the bracket 13 is connected with the bottom plate 7 in a welding mode, an independent and detachable double-layer module is fixed on the bracket 13 through a pressure plate 14, and the pressure plate 14 is connected with the bracket 13 through bolts; in order to ensure the tightness of the reaction chamber 33, a sealing gasket 11 is arranged between the double-layer module and the bracket 13. The double-layer module is composed of a first film 9-1, a second film 9-2 and a frame 10, wherein the first film 9-1 and the second film 9-2 are connected together by welding, and the frame 10 is arranged between the first film 9-1 and the second film 9-2, so that a hollow sandwich 20 structure is formed. The first film 9-1 is provided with an air inlet hole 15 and an air outlet hole 16. The first film 9-1 and the second film 9-2 are preferably made of Teflon films. The hollow interlayers 20 are connected by a pipeline 6, and the pipeline 6 connects the air outlet 16 on one double-layer module with the air inlet 15 on the other double-layer module through a connecting piece, so that an air flow channel is formed between all the double-layer modules. The roundness approximation rate of the bracket 13 of the hemispherical double-layer reactor 2 is not less than 95% (16 models), the shading area is not less than 10%, the light transmittance of the wall material of the reactor is not less than 90%, and the reactor is safe and non-volatile. The utility model discloses a set up clamp plate and sealed the pad, improved the leakproofness of hemisphere double-deck reactor, also prolonged the life of first film and second film. The design of independent double-deck module also makes things convenient for the dismantlement to change.
The movable protective cover 1 of the utility model adopts a frame built by section steel materials, a linear low-noise seamless track is arranged at the bottom, and the cover body of the movable protective cover adopts lightproof anticorrosive materials; one end of the movable protective cover body is provided with a rolling door which can be opened and closed by controlling an actuating mechanism. When the hemispherical double-layer reactor 2 works, the rolling door of the movable protective cover 1 is opened and moves to the backlight side, when the hemispherical double-layer reactor 2 stops working, the rolling door of the movable protective cover 1 moves to the hemispherical double-layer reactor 2 side, and the rolling door is closed. The utility model discloses design through portable protection casing realizes protecting the double-deck reactor of hemisphere and provides the dark space for preparing before the experiment of double-deck hemisphere type photochemistry smog case in fact.
As shown in fig. 10, the bottom plate 7 of the present invention is provided with functional holes, which include a manhole 7-2 for maintenance, a bottom film pressing flange 7-1 for fixing a first film and a second film of a double-layer module, a sample inlet 7-3, a temperature and humidity sensor 7-4, a light hole 7-5, a light hole protective screen 7-6, a light hole flange 7-7, a clean air sample inlet 7-8, a sampling hole 7-9, a pressure sensor 7-10, and a turbulent fan 7-11, wherein the temperature and humidity sensors 7-4 are circumferentially distributed three on the bottom plate 7; the sampling hole 7-3 and the clean air sampling hole 7-8 can be switched to use according to the flow rate of the gas passing through.
As shown in fig. 11, the utility model discloses an air conditioning system provides clean constant temperature air, constant temperature clean air carries to the temperature control system pipeline through middling pressure insulating tube, filter the back through first primary filter 17-1, medium level filter 18, high-grade filter 19, get into in the cavity intermediate layer 20 of double-deck module, evenly through every module, last part is discharged through second primary filter 17-2, another part is discharged through cavity intermediate layer 20 in top, realize that the air-out cleanliness factor is not less than ten thousand grade particulate matter standards (≧ 0.5um ≦ 352 grain/L). The utility model discloses a let in clean constant temperature air in the cavity intermediate layer to the double-deck cover body of hemisphere, realize that there is not obvious difference in temperature inside and outside the double-deck reactor of hemisphere.
As shown in fig. 12, the gas distribution system of the present invention includes an experimental gas supply pipeline and a clean gas supply pipeline. The experimental gas pipelines comprise a wet zero gas pipeline, a dry zero gas pipeline, an aerosol pipeline, an NOx pipeline, an SO2 pipeline and an NH3 pipeline, and the dry zero gas pipeline is also used as a clean air supply pipeline.
In the wet zero gas pipeline, a first mass flow meter 21 is connected with a protection bottle 28, the protection bottle 28 is connected with a humidifying tank 29, the humidifying tank 29 is connected with a reaction chamber 33, wherein a one-way valve is arranged on a pipeline between the first mass flow meter 21 and the protection bottle 28, and a stop valve is arranged on a pipeline between the humidifying tank 29 and the reaction chamber 33;
in the dry zero gas pipeline, the second mass flow meter 22 is connected with the reaction chamber 33, wherein a stop valve is arranged on the pipeline between the second mass flow meter 22 and the reaction chamber 33,
wherein the dry zero gas pipeline and the wet zero gas pipeline are connected in parallel and then enter the reaction cabin;
in an aerosol pipeline, the third mass flow meter 23 is connected with an atomizer 30, the atomizer 30 is connected with a reaction chamber 33, and a stop valve is arranged on a pipeline between the atomizer 30 and the reactor 33;
in the zero gas pipeline, a fourth mass flow meter 24 is connected with an ozone generator 31 and a VOCs gasification furnace 32 which are connected in parallel, the ozone generator 31 and the VOCs gasification furnace 32 which are connected in parallel are connected with a reaction chamber 33, wherein a three-way two-way valve is arranged on a pipeline between the fourth mass flow meter 24 and the ozone generator 31 and the VOCs gasification furnace 32 which are connected in parallel, and a three-way two-way valve is arranged on a pipeline between the ozone generator 31 and the VOCs gasification furnace 32 which are connected in parallel and the reaction chamber 33;
in the NOx pipeline, a fifth mass flow meter 25 is connected with the reaction chamber 33, wherein a stop valve is arranged on a pipeline between the fifth mass flow meter 25 and the reaction chamber 33;
in the SO2 pipeline, a sixth mass flow meter 26 is connected with the reaction chamber 33, wherein a stop valve is arranged on the pipeline between the sixth mass flow meter 26 and the reaction chamber 33;
in the NH3 pipeline, a seventh mass flow meter 27 is connected with the reaction chamber 33, wherein a stop valve is arranged on the pipeline between the seventh mass flow meter 27 and the reaction chamber 33;
after passing through the first mass flow meter 21, the wet zero gas passes through the protective bottle 28 and the humidifying tank 29 and then is merged with the dry zero gas to enter the reaction chamber 33; after passing through the third mass flow meter 22, the aerosol enters the reaction chamber 33 after being processed by the atomizer 30; zero gas passes through the fourth mass flow meter 23 and then respectively enters the ozone generator 31 and the VOCs gasification furnace 32 through the three-way two-way valve, and the treated zero gas enters the reaction chamber 33 after being converged through the three-way two-way valve; NOx and NH3 respectively pass through a fifth mass flow meter 24 and a sixth mass flow meter 25 and then are converged and enter a reaction chamber 33; NH3 enters reaction chamber 33 after passing through a seventh mass flow meter. Wherein each branch is equipped with the stop valve, can realize the independent of different gas and ventilate.
Under the condition that other pipeline stop valves are all closed, the stop valves on the dry zero gas pipeline are independently opened, and then pollutants remained in the reaction process in the reaction chamber 33 can be rapidly cleaned through the dry zero gas until the experiment requirements are met.
The utility model discloses except gas distribution system, still include equipment operation space 4 and integrated control system. The equipment operation space 4 is made of a heat-insulating, fireproof and anticorrosive composite board, and the temperature can be controlled at 25 +/-2 ℃ in four seasons; the integrated control part realizes intelligent control of flow, operation of the movable protective cover body 1, temperature, humidity, and on-off of the lighting lamp group switch and the valve through numerical control programming.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A double-layer hemispherical photochemical smog chamber is characterized by comprising a bearing platform, a hemispherical double-layer reactor and a movable protective cover;
the hemispherical double-layer reactor comprises a hemispherical double-layer cover body, the hemispherical double-layer cover body covers the bearing platform to form a reaction chamber, and the middle part of the hemispherical double-layer cover body is provided with a channel for constant-temperature gas to pass through;
the movable protective cover is slidably mounted on the bearing platform, so that the hemispherical double-layer reactor is shielded and opened.
2. The double-layer hemispherical photochemical smog chamber of claim 1, wherein the hemispherical double-layer cover body comprises a bracket, and a plurality of double-layer modules are detachably mounted on the bracket.
3. The double-layer hemispherical photochemical smog chamber of claim 2, wherein the double-layer module is mounted on the bracket through a pressing plate, and a sealing gasket is arranged at the joint of the double-layer module and the bracket.
4. The double-layer hemispherical photochemical smog chamber of claim 2, wherein the double-layer module comprises a first film, a second film and a frame;
the first film is connected with the second film, and the frame is arranged between the first film and the second film, so that a hollow sandwich structure is formed between the first film and the second film.
5. The double-layer hemispherical photochemical smog chamber of claim 4, wherein the first film of the double-layer module is provided with an air inlet hole and an air outlet hole;
between two adjacent double-layer modules, the air outlet hole of one double-layer module is connected with the air inlet hole of the other double-layer module, so that an air flow channel is formed between all double-layer modules.
6. The double-layer hemispherical photochemical smog chamber of claim 1, wherein the movable shield comprises a movable shield body, a slide rail and a roller shutter door;
the rolling slats door sets up portable protection casing body one end, the slide rail is installed portable protection casing body bottom.
7. The double-layer hemispherical photochemical smog chamber of claim 6, wherein the roller shutter door can be opened and closed through a transmission mechanism.
8. The double-layer hemispherical photochemical smog chamber of claim 1, further comprising a gas distribution system;
the gas distribution system comprises an experimental gas supply pipeline and a clean gas supply pipeline, the experimental gas supply pipeline is formed by connecting a plurality of experimental gas branch pipelines, the experimental gas branch pipelines are connected with the reaction cabin of the hemispherical double-layer reactor, and the clean gas supply pipeline is connected with the reaction cabin;
and the experimental gas supply pipeline and the clean gas supply pipeline are matched with each other to be provided with mass flowmeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020003030.9U CN211537793U (en) | 2020-01-02 | 2020-01-02 | Double-layer hemispherical photochemical smog chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020003030.9U CN211537793U (en) | 2020-01-02 | 2020-01-02 | Double-layer hemispherical photochemical smog chamber |
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| Publication Number | Publication Date |
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| CN211537793U true CN211537793U (en) | 2020-09-22 |
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| CN202020003030.9U Active CN211537793U (en) | 2020-01-02 | 2020-01-02 | Double-layer hemispherical photochemical smog chamber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113101882A (en) * | 2021-05-25 | 2021-07-13 | 盐城工学院 | Photoelectrochemistry reaction device |
| CN115475590A (en) * | 2022-10-31 | 2022-12-16 | 中国科学院生态环境研究中心 | Double-layer film outdoor smog chamber reactor |
-
2020
- 2020-01-02 CN CN202020003030.9U patent/CN211537793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113101882A (en) * | 2021-05-25 | 2021-07-13 | 盐城工学院 | Photoelectrochemistry reaction device |
| CN115475590A (en) * | 2022-10-31 | 2022-12-16 | 中国科学院生态环境研究中心 | Double-layer film outdoor smog chamber reactor |
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