CN104722340A - Artificial aerosol climate box and application method thereof - Google Patents
Artificial aerosol climate box and application method thereof Download PDFInfo
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- CN104722340A CN104722340A CN201510093611.XA CN201510093611A CN104722340A CN 104722340 A CN104722340 A CN 104722340A CN 201510093611 A CN201510093611 A CN 201510093611A CN 104722340 A CN104722340 A CN 104722340A
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Abstract
The invention provides an artificial aerosol climate box and an application method thereof. The artificial aerosol climate box comprises a stainless steel housing and the like, wherein a blocked tank body is located in the stainless steel housing; a variable-speed fan, a material box and an annular air flushing pipeline are sequentially located in the blocked tank body from bottom to top; a double-open sampling box is located in the material box; an air inlet is fixedly formed in the top end of the stainless steel housing, and a tank body head cover and an operation panel are fixedly arranged at the top end of the stainless steel housing; a reserved detection opening is formed in the tank body head cover; the tank body head cover is fixed together with the stainless steel housing through an airtight fixing bolt; and a vacuum pump is located in the stainless steel housing and is located on the side surface of the blocked tank body. Particulate matters intercepted on a plant leaf sample are released into air again; stable and uniform aerosol is formed in the blocked tank body; and the measurement accuracy is ensured.
Description
Technical field
The present invention relates to a kind of climate box and using method thereof, particularly, relate to a kind of artificial aerosol climate box and using method thereof.
Background technology
Aerosol is that solid or liquid fine particle disperse and be suspended in the colloidal dispersion system formed in gas medium, and its size is 0.001 ~ 100 micron, is also the important composition composition that haze is formed.The aerosol of large gas suspension can stop and absorb and retain in blade surface by plant leaf blade, thus makes particle depart from atmospheric environment, reaches the function purified air.But, how to measure on blade to be detained how many particles, and by the particle (PM of different-grain diameter
10, PM
2.5, PM
1deng) distinguish, be very difficult.Usual way washes method with water, but the particle of solubility can be dissolved due to WATER-WASHING METHOD, causes the blade amount of laying the dust of mensuration less than normal.
Related documents also discloses and uses high wind to be blown afloat by the particle that blade retains, and makes it to be re-suspended in air, uses the method for the aerosol concentration of different-grain diameter in accurate Instrument measuring air thereafter again.But its defect is: the air for blowing afloat particle on blade is inherently impure, and the particle of stripping is directly blown away, cannot form stable aerosol structure, therefore having the accuracy measured greatly affects, and test result has very large uncertainty.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of artificial aerosol climate box and using method thereof, the particle that plant leaf blade sample retains is discharged in air by again, forms stable, uniform aerosol, ensure the accuracy measured in airtight tank body.
According to an aspect of the present invention, a kind of artificial aerosol climate box is provided, it is characterized in that, comprise stainless steel casing, airtight tank body, variable speed fan, magazine, temperature probe, double-open type sample introduction box, annular air flushing line, air inlet, tank body top cover, sealing set bolt, reserved detection mouth, guidance panel, distribution box, outside pressure balancing device, vavuum pump, vapor tight tank body is positioned at stainless steel casing, variable speed fan, magazine, annular air flushing line is positioned at airtight tank body from bottom to up successively, double-open type sample introduction box is positioned at magazine, air inlet, tank body top cover, guidance panel is all fixed on the top of stainless steel casing, the reserved mouth that detects is positioned on tank body top cover, fixed by sealing set bolt between tank body top cover and stainless steel casing, vavuum pump is positioned at stainless steel casing and is positioned at the side of airtight tank body.
Preferably, be provided with a two-way electrical heating wire in described airtight tank body, two-way electrical heating wire is positioned at the below of variable speed fan.
Preferably, the inwall of described airtight tank body is provided with a temperature probe.
Preferably, in described stainless steel casing and the side being positioned at airtight tank body is also provided with a distribution box and an outside pressure balancing device.
Preferably, described airtight tank body is upper cover type, columniform airtight tank body.
Preferably, the below of described stainless steel casing is provided with roller.
Preferably, the highest wind velocity of described variable speed fan reaches 12m/s, simulation one-level to ten grade natural wind.
Preferably, the shape of described magazine is hemispherical network structure, the inwall of all gas outlet tiltedly to airtight tank body of annular air flushing line.
Preferably, described double-open type sample introduction box adopts stainless steel cube structure, and the top and bottom of double-open type sample introduction box all can open wide or close.
The present invention also provides a kind of using method of artificial aerosol climate box, it is characterized in that, comprises the following steps:
Step one, unscrew sealing set bolt, the tank body top cover of reserved three screw sockets is opened, take out double-open type sample introduction box, plant leaf blade sample is placed in double-open type sample introduction box, then double-open type sample introduction box is settled go back to original position, cover tank body top cover, screwing hermetic set bolt, is connected a particle real-time monitoring instrument with reserved monitoring mouth; Now whole airtight tank interior and external environment are isolated, and sample is positioned at double-open type sample introduction box, isolate with airtight tank body internal environment;
Step 2, operation control panel makes after pure air enters annular air flushing line by air inlet, along inwall Jet with downward flow direction, air scour is carried out to the inwall of airtight tank body, vavuum pump is started working simultaneously, gas in airtight tank body is extracted out together with particle, in airtight tank body, is tending towards clean, operation control panel make airtight tank body and external environment completely isolated;
Step 3, operation control panel, open bottom double-open type sample introduction box, sample falls into magazine, regulates variable speed fan, carries out stripping to the plant leaf blade sample in magazine, simultaneously by the gas mixing in airtight tank body; After the particle concentration in airtight tank body is stable, records the mass concentration of each particles thing in airtight tank body, the quality of surveyed sample surfaces settling flux particle can be calculated by known parameters.
Compared with prior art, the present invention has following beneficial effect:
One, present invention employs airtight tank design, blade can not to be leaked loss by the particle blown afloat, but all formed in tank body and stablize aerosol, ensure that accuracy and the reliability of test.
Two, variable speed fan ensures that on blade, particle is by whole stripping.Research confirms, wind speed is when more than 10m/s, and the particle on blade will by stripping.In order to produce powerful wind-force and air pressure in tank body, the present invention is equipped with the variable speed fan that highest wind velocity reaches 12m/s.This fan have employed quiet dustless design, and can controlled wind speed, this makes it possible to reach can either produce high wind and can be used for again aerocolloidal effect in mixing tank body.
Three, the present invention is rinsed by air inlet, can reach pure test air conditions, stop to bring pollution in airtight tank body.Therefore, the present invention adopts dustless steel cylinder nitrogen to introduce in airtight tank body as blanketing gas.Pure air passes into airtight tank body by the cyclic flushing pipe road on an inwall, and by flowing out in pore vertically downward in pipeline, reach the effect of washing away airtight inner tank wall, finally extract vapor tight tank out by aspiration pump external, reach the purification to whole interior, washed away by multi-time inflating, ensure that the aerosol concentration in airtight tank body inner air reaches extremely low level.Test through pure nitrogen, after rinsing, in tank body, the concentration of PM2.5 can reach below 2ug/m3, reaches clean air ambient condition, ensures accuracy and the reliability of test data.
Four, sample introduction box ingehious design, solves a sample introduction difficult problem.In order to solve airtight tank body after rinsing well, how leaf sample is sent into the problem of airtight tank body, ingehious design of the present invention double-open type sample introduction box.Before tank body is rinsed, leaf sample is just put into double-open type sample introduction box by the present invention, the corresponding button is pressed after flushing terminates, the bottom of double-open type sample introduction box can be opened by the office that electromagnetic valve controls, leaf sample is admitted in the magazine of below thereupon, and the variable speed fan brute force being applicable to bottom blows afloat does not introduce new pollution.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the front view of the artificial aerosol climate box of the present invention.
Fig. 2 is the top view of the artificial aerosol climate box of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
As depicted in figs. 1 and 2, the artificial aerosol climate box of the present invention comprises stainless steel casing 1, airtight tank body 2, variable speed fan 4, magazine 5, temperature probe 6, double-open type sample introduction box 7, annular air flushing line 8, air inlet 9, tank body top cover 10, sealing set bolt 11, reserved detection mouth 12, guidance panel 13, distribution box 14, outside pressure balancing device 15, vavuum pump 16, airtight tank body 2 is positioned at stainless steel casing 1, variable speed fan 4, magazine 5, annular air flushing line 8 is positioned at airtight tank body 2 from bottom to up successively, double-open type sample introduction box 7 is positioned at magazine 5, air inlet 9, tank body top cover 10, guidance panel 13 is all fixed on the top of stainless steel casing 1, the reserved mouth 12 that detects is positioned on tank body top cover 10, fixed by sealing set bolt 11 between tank body top cover 10 and stainless steel casing 1, vavuum pump 16 is positioned at stainless steel casing 1 and is positioned at the side of airtight tank body 2.
The top of stainless steel casing 1 is provided with air gauge 121, emergency stop button 127, wind speed adjusting knob 128, sealing set bolt 129.The outside of tank body top cover 10 is provided with sealing ring 123.
Be provided with a two-way electrical heating wire 3 in airtight tank body 2, two-way electrical heating wire 3 is positioned at the below of variable speed fan 4.
The inwall of airtight tank body 2 is provided with a temperature probe 6, so conveniently carries out temperature control.
In stainless steel casing 1 and the side being positioned at airtight tank body 2 is also provided with a distribution box 14 and an outside pressure balancing device 15.
Airtight tank body 2 is upper cover type, columniform airtight tank body, is intended to like this reduce dust stratification dead angle quantity in tank body, is convenient to aerosol mixing and flushing in airtight tank body 2.Tank body opening portion and upper cover outer ring are provided with sealing ring 123, can with external completely isolated to ensure that tank body is airtight.The shape of stainless steel casing 1 is cuboid.
The below of stainless steel casing 1 is provided with roller 17, convenient so mobile; The side, top of stainless steel casing 1 is provided with a handle 18, so conveniently pulls.
The maximum temperature of two-way electrical heating wire 3 reaches 40 DEG C (temperature-controllable, 0 DEG C ~ 40 DEG C), is used in conjunction, can regulates temperature in airtight tank body in real time, realize the controllable simulation of temperature near the ground with temperature probe 6.
The highest wind velocity of variable speed fan 4 reaches 12m/s (wind speed is adjustable, 1m/s to 12m/s), can simulate one-level to ten grade natural wind, aerocolloidal mixing in the stripping of particle and airtight tank body on blade.
The shape of magazine 5 is hemispherical network structure, is intended to avoid plant leaf blade sample to be blown into stuffy dead angle, ensures that sample surfaces particle can by abundant stripping and settling flux.
Double-open type sample introduction box 7 adopts stainless steel cube structure, and the top and bottom of double-open type sample introduction box 7 all can open wide or close, and is placed in magazine 5 correspondence position.In advance plant leaf blade sample is put into double-open type sample introduction box 7 from top during use, after airtight tank body 2 cleaning inside, by the sample introduction switch control rule sample introduction switching starter of guidance panel 13, now the bottom of double-open type sample introduction box 7 is opened, plant leaf blade sample can be made to fall in the magazine 5 of below, and do not bring new air pollution into.
The inwall of all gas outlet tiltedly to airtight tank body of annular air flushing line 8, ensures that in airtight tank body 2, institute's air inlet body fully can wash away airtight tank body 2 inwall, makes to be attached to particle on the inwall of airtight tank body 2 by stripping to discharge outside vapor tight tank body 2.
Control panel 13 is provided with takes out gas-filled switching tube, sample introduction switch, power supply indicator, pressure indicator light, temperature control panel, fan timer, fan swicth etc.
Distribution box 14 connection control panel and each components and parts, for each parts provide power supply, emergency stop button 127 is under the state of emergency, and a key cuts off all power supplys.
Outside pressure balancing device 15 is single-pass formula air valve, and when internal pressure is greater than setting value, valve open exhaust decompression, effect avoids airtight tank body because interior pressure is excessive when taking out inflation, causes tank body deformation or top cover to eject.Air gauge 121 truely can show pressure condition in airtight tank body.
The using method of the artificial aerosol climate box of the present invention comprises the following steps:
Step one, unscrew sealing set bolt 11, the tank body top cover 10 of reserved three screw sockets is opened, take out double-open type sample introduction box 7, plant leaf blade sample is placed in double-open type sample introduction box 7, then double-open type sample introduction box is settled go back to original position (fixed position in magazine), cover tank body top cover 10, screwing hermetic set bolt 11, is connected a particle real-time monitoring instrument with reserved monitoring mouth 12; Now whole airtight tank body 2 is inner isolates with external environment, and sample is positioned at double-open type sample introduction box 7, isolates with airtight tank body 2 internal environment;
Step 2, operation control panel 13 (namely open and take out gas-filled switching tube) makes after pure air enters annular air flushing line 8 by air inlet 9, along inwall Jet with downward flow direction, air scour is carried out to the inwall of airtight tank body 2, vavuum pump 16 is started working simultaneously, gas in airtight tank body is extracted out together with particle, after a period of time, be tending towards in airtight tank body clean (particle concentration reaches relatively low level), operation control panel 13 (namely close and take out gas-filled switching tube) make airtight tank body and external environment completely isolated;
Step 3, operation control panel 13 (namely opening sample introduction switch), open bottom double-open type sample introduction box 7, sample falls into magazine, regulates variable speed fan 4, carries out stripping to the plant leaf blade sample in magazine, simultaneously by the gas mixing in airtight tank body; After a period of time, after the particle concentration in airtight tank body is stable, the mass concentration (or Particle density) of each particles thing in airtight tank body can be recorded, the quality of surveyed sample surfaces settling flux particle can be calculated by known parameters.
The present invention produces air-flow by the rotation of airtight tank body fan, is again blown afloat by the particle that leaf sample surface to be measured is absorbed and retain, and in airtight tank body, forms stable aerosol structure.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. an artificial aerosol climate box, it is characterized in that, comprise stainless steel casing, airtight tank body, variable speed fan, magazine, temperature probe, double-open type sample introduction box, annular air flushing line, air inlet, tank body top cover, sealing set bolt, reserved detection mouth, guidance panel, distribution box, outside pressure balancing device, vavuum pump, vapor tight tank body is positioned at stainless steel casing, variable speed fan, magazine, annular air flushing line is positioned at airtight tank body from bottom to up successively, double-open type sample introduction box is positioned at magazine, air inlet, tank body top cover, guidance panel is all fixed on the top of stainless steel casing, the reserved mouth that detects is positioned on tank body top cover, fixed by sealing set bolt between tank body top cover and stainless steel casing, vavuum pump is positioned at stainless steel casing and is positioned at the side of airtight tank body.
2. artificial aerosol climate box according to claim 1, is characterized in that, be provided with a two-way electrical heating wire in described airtight tank body, two-way electrical heating wire is positioned at the below of variable speed fan.
3. artificial aerosol climate box according to claim 1, is characterized in that, the inwall of described airtight tank body is provided with a temperature probe.
4. artificial aerosol climate box according to claim 1, is characterized in that, in described stainless steel casing and the side being positioned at airtight tank body is also provided with a distribution box and an outside pressure balancing device.
5. artificial aerosol climate box according to claim 1, is characterized in that, described airtight tank body is upper cover type, columniform airtight tank body.
6. artificial aerosol climate box according to claim 1, it is characterized in that, the below of described stainless steel casing is provided with roller.
7. artificial aerosol climate box according to claim 1, it is characterized in that, the highest wind velocity of described variable speed fan reaches 12m/s, simulation one-level to ten grade natural wind.
8. artificial aerosol climate box according to claim 1, is characterized in that, the shape of described magazine is hemispherical network structure, the inwall of all gas outlet tiltedly to airtight tank body of annular air flushing line.
9. artificial aerosol climate box according to claim 1, is characterized in that, described double-open type sample introduction box adopts stainless steel cube structure, and the top and bottom of double-open type sample introduction box all can open wide or close.
10. a using method for artificial aerosol climate box, is characterized in that, comprise the following steps:
Step one, unscrew sealing set bolt, the tank body top cover of reserved three screw sockets is opened, take out double-open type sample introduction box, plant leaf blade sample is placed in double-open type sample introduction box, then double-open type sample introduction box is settled go back to original position, cover tank body top cover, screwing hermetic set bolt, is connected a particle real-time monitoring instrument with reserved monitoring mouth; Now whole airtight tank interior and external environment are isolated, and sample is positioned at double-open type sample introduction box, isolate with airtight tank body internal environment;
Step 2, operation control panel makes after pure air enters annular air flushing line by air inlet, along inwall Jet with downward flow direction, air scour is carried out to the inwall of airtight tank body, vavuum pump is started working simultaneously, gas in airtight tank body is extracted out together with particle, in airtight tank body, is tending towards clean, operation control panel make airtight tank body and external environment completely isolated;
Step 3, operation control panel, open bottom double-open type sample introduction box, sample falls into magazine, regulates variable speed fan, carries out stripping to the plant leaf blade sample in magazine, simultaneously by the gas mixing in airtight tank body; After the particle concentration in airtight tank body is stable, records the mass concentration of each particles thing in airtight tank body, the quality of surveyed sample surfaces settling flux particle can be calculated by known parameters.
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Cited By (7)
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| CN106226206A (en) * | 2016-08-30 | 2016-12-14 | 上海交通大学 | Stripping settling flux method measures plant surface PM2.5the method of dry deposition speed |
| CN106248538A (en) * | 2016-08-30 | 2016-12-21 | 上海交通大学 | Indirect determination plant surface PM2.5the method of dry deposition speed |
| CN106248887A (en) * | 2016-10-10 | 2016-12-21 | 南京林业大学 | A kind of smoke the experimental provision that gas is coerced for plant is carried out PM2.5 |
| CN108656156A (en) * | 2018-05-15 | 2018-10-16 | 上海交通大学 | A kind of self-circulation type sweeps de- smog box and its application method |
| CN108732205A (en) * | 2018-05-23 | 2018-11-02 | 湖南工程学院 | A kind of warmth retention property evaluation system of wearing class haberdashery |
| CN109001087A (en) * | 2018-05-23 | 2018-12-14 | 上海交通大学 | Can penetration type closing sweep de- settling flux smog box and its detection method |
| CN110411907A (en) * | 2019-06-19 | 2019-11-05 | 上海交通大学 | Submicron Particles coalescence efficiency test method, system and medium on plant leaf blade |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106226206A (en) * | 2016-08-30 | 2016-12-14 | 上海交通大学 | Stripping settling flux method measures plant surface PM2.5the method of dry deposition speed |
| CN106248538A (en) * | 2016-08-30 | 2016-12-21 | 上海交通大学 | Indirect determination plant surface PM2.5the method of dry deposition speed |
| CN106248538B (en) * | 2016-08-30 | 2020-07-24 | 上海交通大学 | Method for indirectly measuring dry sedimentation rate of PM2.5 on surface of plant |
| CN106248887A (en) * | 2016-10-10 | 2016-12-21 | 南京林业大学 | A kind of smoke the experimental provision that gas is coerced for plant is carried out PM2.5 |
| CN108656156A (en) * | 2018-05-15 | 2018-10-16 | 上海交通大学 | A kind of self-circulation type sweeps de- smog box and its application method |
| CN108732205A (en) * | 2018-05-23 | 2018-11-02 | 湖南工程学院 | A kind of warmth retention property evaluation system of wearing class haberdashery |
| CN109001087A (en) * | 2018-05-23 | 2018-12-14 | 上海交通大学 | Can penetration type closing sweep de- settling flux smog box and its detection method |
| CN109001087B (en) * | 2018-05-23 | 2020-11-17 | 上海交通大学 | Extensible closed sweeping and removing re-suspension smoke box and detection method thereof |
| CN110411907A (en) * | 2019-06-19 | 2019-11-05 | 上海交通大学 | Submicron Particles coalescence efficiency test method, system and medium on plant leaf blade |
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| CN104722340B (en) | 2016-06-01 |
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