CN101804365B - Pressure-adjustable double layer smog chamber - Google Patents
Pressure-adjustable double layer smog chamber Download PDFInfo
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- CN101804365B CN101804365B CN 201010133619 CN201010133619A CN101804365B CN 101804365 B CN101804365 B CN 101804365B CN 201010133619 CN201010133619 CN 201010133619 CN 201010133619 A CN201010133619 A CN 201010133619A CN 101804365 B CN101804365 B CN 101804365B
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Abstract
The invention discloses a pressure-adjustable double layer smog chamber, which can be used to adjust the pressure of photochemical reaction. The smog chamber comprises a photochemical reacting chamber, a regulating and controlling chamber, a temperature controlling system, an air circulating system and a sample analyzing system. The main body of the smog chamber is structured in double layers, the outer layer is made of rigid transparency material; the inner layer is made of transparency material; the regulating and controlling chamber is a space between the outer layer and inner layer; the regulating and controlling chamber is provided with a scavenging valve; and the photochemical reacting chamber is a space encircled by the inner layer and is provided with a scavenging valve and a sampling opening. The outer layer regulating and controlling chamber can protect the inner layer photochemical reacting chamber and prevent the gas in the reacting chamber from being polluted. The double layer smog chamber provided in this invention can adjust the pressure of the photochemical reaction, accurately control the experiment condition, and increase the repeatability of the experiment and reliability of the experiment result.
Description
Technical field
The present invention relates to a kind of smog box, particularly a kind of double layer smog chamber that can regulate photochemically reactive pressure conditions.
Background technology
Photochemical fog is to enter primary pollutions such as the hydrocarbon of atmosphere and nitrogen oxide by pollution sources such as automobile, factories, effect at sunlight issues biochemical reaction, generate secondary pollutions such as ozone, aldehyde, ketone, acid, acetylperoxide nitrate, participate in the primary pollution of photochemical reaction process and the formed smog pollution phenomenon of mixture of secondary pollution and be called photochemical fog.
In order to understand photochemical reaction mechanism, scientific research institution has generally carried out the experimental study that utilizes photochemical fog case simulation atmospheric photochemical reaction both at home and abroad.Use smog box and carry out the influence that the research of atmospheric environment chemical simulation not only can be got rid of factors such as complicated meteorology, landform, thereby the chemical process under the condition that can control and can repeat in the simple simulation atmosphere, extract the essence of atmosphere chemically react, obtain the machine-processed mechanism of reaction, but also can develop and verify the Atmospheric Chemistry pattern, its achievement in research will provide scientific basis for the formulation of prevention and control of air pollution countermeasure.Known smog box both domestic and external is divided into two kinds of indoor and outdoors at present.The advantage of outdoor smog box is that can directly to utilize sunlight, shortcoming be that light intensity changes along with the variation of natural conditions, and surrounding environment is also in continuous variation.The continuous variation of temperature, humidity, light intensity etc. and be difficult to control the repeatable variation that makes smog box experiment.And the indoor smog case can provide accurate control to factors such as temperature, humidity, and the repeatability of experiment better.But because the emission spectrum of artificial light sources can not be all identical with sunshine on all band, make some the photochemical reaction speed that records and the reaction rate that obtains in the sun have deviation.
Summary of the invention
The present invention can utilize sunlight for the technical problem that exists in the solution known technology provides a kind of, can accurately control experiment condition again simultaneously, improves the novel smog box of photochemical reaction experimental precision.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of smog box is made of photochemical reaction cabin, regulation and control cabin, air circulation system, sampling analysis system.The main body of smog box is double-decker, and outer and internal layer is light transmissive material; The space that internal layer surrounds is the photochemical reaction cabin; Space between skin and the internal layer is the regulation and control cabins; Reaction cabin and regulation and control cabin all are seal cavities; The photochemical reaction cabin is fixed on the rigid support of smog box bottom, and scavenging air valve and thief hatch are installed; Scavenging air valve is installed in the pressure regulation cabin.
The layer structure of smog box main body has withstand voltage character among the present invention, and the pressure range that can bear is 0atm～1atm; Internal layer is flexible material, has flexible character.
One way pressure-reducing valve is installed in the photochemical reaction cabin, and air-flow is to the regulation and control cabin from reaction cabin by direction.The threshold value pressure of pressure-reducing valve is slightly larger than the pressure by the gravity generation of inner layer material.
Air circulation system comprises compressor, vavuum pump, gas circuit, air cleaning system and valve.
Air circulation system can add pressure gage and controller; At least two of pressure gages are installed on respectively in the gas circuit of regulation and control cabin and reaction cabin; Controller is used for control compressor and vavuum pump.
The advantage that smog box of the present invention is compared other known smog boxes is: use double-decker, skin is made by rigid material, can shield; The pressure regulation effect can be played in the regulation and control cabin, the Atmospheric Chemistry experimental study under can the simulated altitude environment under low pressure, and simultaneously, the photochemical reaction cabin is independent, sealed space, is not subjected to the influence of various regulators; Pressure gage and controller are installed, can be carried out auto-control to pressure; Regulation and control charge into pure air in the cabin, can reduce the pollution to reaction cabin; Inner layer material is collapsible, so reaction cabin can be pumped near vacuum, is convenient to change reacting gas; Reaction cabin has only the bottom fixing, so the gravity of reaction cabin itself can make the interior pressure of reaction cabin be slightly larger than the pressure in the regulation and control cabin under the nature, and gas is from inside to outside by the infiltration of bulkhead, and outer field gas can not produce internal layer and pollute.
Description of drawings
Fig. 1 is schematic diagram of the present invention;
Mark among the figure: the 1-skin, 2-regulates and control the cabin, the 3-pressure-reducing valve, 4-photochemical reaction cabin, the 5-internal layer, 6-regulates and control scavenging air valve, and 7-reacts scavenging air valve, 8-vavuum pump, 9-air cleaning system, 10-compressor, 11-thief hatch, 12-support.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples:
As shown in Figure 1, double layer smog chamber is made of photochemical reaction cabin 4, regulation and control cabin 2, air circulation system, sampling analysis system.The main body of smog box is double-decker, and skin 1 is light transmissive material with internal layer 5; The space that internal layer 5 surrounds is photochemical reaction cabin 4; Space between skin 1 and the internal layer 5 is regulation and control cabins 2; Reaction cabin 4 and regulation and control cabin 2 all are seal cavities; Photochemical reaction cabin 4 is fixed on the rigid support 12 of smog box bottom, and reaction scavenging air valve 7 and thief hatch 11 are installed; Regulation and control scavenging air valve 6 is installed in the pressure regulation cabin.Outer 1 structure has withstand voltage character, and the pressure range that can bear is 0atm～1atm; Internal layer 5 is flexible material, has flexible character.One way pressure-reducing valve 3 is installed in photochemical reaction cabin 4, and air-flow is to regulation and control cabin 2 from reaction cabin 4 by direction.The threshold value pressure of pressure-reducing valve 3 is slightly larger than the pressure by the gravity generation of internal layer 5 materials.Air circulation system comprises compressor 10, vavuum pump 8, gas circuit, air cleaning system 9 and valve.Air circulation system adds pressure gage and controller; At least two of pressure gages are installed on respectively in the gas circuit of regulation and control cabin 2 and reaction cabin 4; Controller is used for control compressor 10 and vavuum pump 8.
In order to study chemical reaction that atmosphere takes place and the mechanism of photochemical fog under illumination condition, need carry out the atmospheric photochemistry simulated experiment, smog box of the present invention can be used for controlling the pressure of photochemistry simulated experiment.
1. utilize the rigidity confined space in outer regulation and control cabin can realize voltage regulation function, with the atmospheric environment of simulated altitude low pressure.Before charging into reacting gas to reaction cabin, guarantee that the scavenging air valve in regulation and control cabin is open mode, reaction cabin is vacuum state.If the maximum volume of reaction cabin is V, if the atmospheric environment of simulation 0.5atm, so, to increase and be twice because air pressure is down to the 0.5atm volume from 1atm, therefore need in reaction cabin, charge into the reacting gas that the 1atm lower volume is not more than V/2, the gas circuit Close All of reaction cabin utilizes vavuum pump to extract the gas that part is regulated and control the cabin out then, and making the air pressure in regulation and control cabin is 0.5atm-P
m, P wherein
mBe the pressure by the gravity generation of plastic sheeting.At this moment the pressure in the reaction cabin is 0.5atm, has so just realized the hypobaric purpose of simulation.
2. control air pressure in real time.Carry out also needing in the process to control photochemically reactive pressure conditions in experiment, at this moment, reaction cabin must keep sealing, can not inflate or exit.Use smog box of the present invention can realize this purpose: pressurizeed or decompression operation in the regulation and control cabin, the volume of reaction cabin can dwindle thereupon or increase, and pressure also can increase thereupon or reduce.It should be noted that the restriction of the maximum volume that is subjected to reaction cabin, can not unrestrictedly carry out decompression operation.Therefore, if estimate that the amplitude of the decompression in experimentation is bigger, then testing the reacting gas that the preparatory stage charges into can not be too many.
3. experiment finishes when changing the gas of reaction cabin, uses the gas in vavuum pump abstraction reaction cabin, is evacuated near vacuum, charge into pure air then, be evacuated to vacuum again, so repeatedly several times, can effectively reacting gas be extracted out, the photochemistry of avoiding remaining reacting gas to pollute is next time tested.
The above, only be in order to concrete case study on implementation of the present invention to be described, but be not in order to limit practical range of the present invention, such as those skilled in the art must be covered by the scope of claim of the present invention not breaking away from all equivalence changes of finishing under the indicated spirit of the present invention and the principle or modifying.
Claims (9)
1. a double layer smog chamber is made of photochemical reaction cabin (4), regulation and control cabin (2), air circulation system and sampling analysis system.It is characterized in that: the main body of described smog box is double-decker, and outer (1) is light transmissive material with internal layer (5); Described regulation and control cabin (2) is the space between outer (1) and the internal layer (5); Regulation and control scavenging air valve (6) is installed in regulation and control cabins (2); Described photochemical reaction cabin (4) is the space that internal layer (5) surrounds; Reaction response scavenging air valve (7) and thief hatch (11) are installed in photochemical reaction cabin (4).
2. smog box according to claim 1 is characterized in that: photochemical reaction cabin (4) are fixed on the rigid support (12) of smog box bottom.
3. smog box according to claim 1 is characterized in that: photochemical reaction cabin (4) and regulation and control cabins (2) all are seal cavities.
4. smog box according to claim 3, it is characterized in that: internal layer (5) is flexible material.
5. smog box according to claim 4 is characterized in that: outer (1) structure has withstand voltage character, and it bears pressure range is 0atm～1atm at least.
6. smog box according to claim 5 is characterized in that: one way pressure-reducing valve (3) is installed in described photochemical reaction cabin (4), and air-flow is to regulating and control cabin (2) from reaction cabin (4) by direction.
7. smog box according to claim 6 is characterized in that: the threshold value pressure of pressure-reducing valve (3) is slightly larger than the pressure that the gravity by internal layer (5) material produces.
8. smog box according to claim 1, it is characterized in that: described air circulation system comprises compressor (10), vavuum pump (8), gas circuit, air cleaning system (9) and valve.
9. smog box according to claim 8, it is characterized in that: described air circulation system can add pressure gage and controller; At least two of pressure gages are installed on respectively in the gas circuit of regulation and control cabin (2) and reaction cabin (4); Controller is used for control compressor (10) and vavuum pump (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010133619 CN101804365B (en) | 2010-03-23 | 2010-03-23 | Pressure-adjustable double layer smog chamber |
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| CN 201010133619 CN101804365B (en) | 2010-03-23 | 2010-03-23 | Pressure-adjustable double layer smog chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110274938B (en) * | 2019-06-26 | 2020-06-02 | 燕山大学 | Photochemical smog experimental apparatus |
| CN111135877B (en) * | 2020-01-19 | 2021-03-16 | 湖南大学 | Double-layer specified flow passage sealing structure and sealing method of sealing box chamber |
| CN114910607B (en) * | 2022-03-28 | 2023-04-25 | 暨南大学 | Vehicle-mounted indoor and outdoor double-smoke box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122582A (en) * | 2000-10-17 | 2002-04-26 | Sony Corp | Reducing substance detection device and its manufacturing method, and reducing substance detection method |
| CN2657682Y (en) * | 2003-10-30 | 2004-11-24 | 王静华 | Multipurpose hanging type air disinfecting deodorization apparatus |
| CN101327400A (en) * | 2008-07-18 | 2008-12-24 | 清华大学 | Method and device for removing oil mist and volatile organic matter in oil smoke |
| CN201625535U (en) * | 2010-03-23 | 2010-11-10 | 深圳市华测检测技术股份有限公司 | Pressure adjustable double-layer smog box |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122582A (en) * | 2000-10-17 | 2002-04-26 | Sony Corp | Reducing substance detection device and its manufacturing method, and reducing substance detection method |
| CN2657682Y (en) * | 2003-10-30 | 2004-11-24 | 王静华 | Multipurpose hanging type air disinfecting deodorization apparatus |
| CN101327400A (en) * | 2008-07-18 | 2008-12-24 | 清华大学 | Method and device for removing oil mist and volatile organic matter in oil smoke |
| CN201625535U (en) * | 2010-03-23 | 2010-11-10 | 深圳市华测检测技术股份有限公司 | Pressure adjustable double-layer smog box |
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