CN104722340B - artificial aerosol climate box and using method thereof - Google Patents
artificial aerosol climate box and using method thereof Download PDFInfo
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- CN104722340B CN104722340B CN201510093611.XA CN201510093611A CN104722340B CN 104722340 B CN104722340 B CN 104722340B CN 201510093611 A CN201510093611 A CN 201510093611A CN 104722340 B CN104722340 B CN 104722340B
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Abstract
The present invention provides a kind of artificial aerosol climate box and using method thereof, artificial aerosol climate box comprises stainless steel casing etc., closed tin body is positioned at stainless steel casing, variable speed fan, material box, annular air flushing pipeline is positioned at closed tin body from bottom to up successively, double-open type enters sample box and is positioned at material box, air inlet mouth, tank body top cover, operating panel is all fixed on the top of stainless steel casing, reserved detection mouth is positioned on tank body top cover, fixed by sealing standing bolt between tank body top cover and stainless steel casing, vacuum pump is positioned at stainless steel casing and is positioned at the side of closed tin body. the particulate matter retained on plant leaf sample is discharged in air by the present invention again, forms aerosol stable, uniform, ensure the accuracy measured in closed tin body.
Description
Technical field
The present invention relates to a kind of climate box and using method thereof, specifically, it relates to a kind of artificial aerosol climate box and using method thereof.
Background technology
Aerosol be the little particle of solid or liquid disperse and be suspended in gaseous media formed colloidal dispersion system, its size is 0.001��100 micron, be also haze formed important composition composition. The aerosol of big gas suspension can be stopped and absorb and retain in blade surface by plant leaf, thus makes particulate matter depart from atmospheric environment, reaches the function of purification air. But, how to measure and blade has been detained how many particulate matter, and by the particulate matter (PM of different-grain diameter10��PM2.5��PM1Deng) distinguish, it is very difficult. Usual method washes method with water, but can the particulate matter of solubility be dissolved due to WATER-WASHING METHOD, causes the blade amount of laying the dust of mensuration less than normal.
Also disclosing about document uses high wind the particulate matter retained on blade to be blown afloat, and makes it to be re-suspended in air, thereafter again by the method for the aerosol load of different-grain diameter in accurate Instrument measuring air. But its defect is: inherently impure for blowing afloat the air of particulate matter on blade, and the particulate matter of stripping is directly blown away, cannot forming stable aerosol structure, therefore the accuracy measured being had greatly affects, and test result has very big uncertainty.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of artificial aerosol climate box and using method thereof, the particulate matter retained on plant leaf sample is discharged in air by again, forms aerosol stable, uniform, ensure the accuracy measured in closed tin 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, closed tin body, variable speed fan, material box, temperature probe, double-open type enters sample box, annular air flushing pipeline, air inlet mouth, tank body top cover, sealing standing bolt, reserved detection mouth, operating panel, switch box, outside pressure balancing device, vacuum pump, closed tin body is positioned at stainless steel casing, variable speed fan, material box, annular air flushing pipeline is positioned at closed tin body from bottom to up successively, double-open type enters sample box and is positioned at material box, air inlet mouth, tank body top cover, operating panel is all fixed on the top of stainless steel casing, reserved detection mouth is positioned on tank body top cover, fixed by sealing standing bolt between tank body top cover and stainless steel casing, vacuum pump is positioned at stainless steel casing and is positioned at the side of closed tin body.
Preferably, being provided with a two-way electrical heating wire in described closed tin body, two-way electrical heating wire is positioned at the lower section of variable speed fan.
Preferably, the inwall of described closed tin body is provided with a temperature probe.
Preferably, in described stainless steel casing and the side being positioned at closed tin body is also provided with a switch box and an outside pressure balancing device.
Preferably, described closed tin body is upper cover formula, cylindrical closed tin body.
Preferably, the lower section 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 material box is half spherical reticulated structure, and all gas outlet of annular air flushing pipeline is tiltedly to the inwall of closed tin body.
Preferably, described double-open type enters sample box and adopts stainless steel cube structure, and the top and bottom that double-open type enters sample box all can open wide or close.
The present invention also provides the using method of a kind of artificial aerosol climate box, it is characterised in that, comprise the following steps:
Step one, revolve pine sealing standing bolt, the tank body top cover of reserved three screw sockets is opened, take out double-open type and enter sample box, plant leaf sample is placed in double-open type and enters sample box, then double-open type is entered sample box and settles go back to original position, lid upper tank body top cover, screwing hermetic standing bolt, is connected a particulate matter real-time monitoring instrument with reserved monitoring mouth; Now whole airtight tank interior and external environment isolation, sample is positioned at double-open type and enters sample box, isolates with closed tin body internal medium;
Step 2, after operation control panel makes pure air enter annular air flushing pipeline by air inlet mouth, along inwall Jet with downward flow direction, the inwall of closed tin body is carried out air scour, vacuum pump is started working simultaneously, being extracted out together with particulate matter by gas in closed tin body, be tending towards clean in closed tin body, operation control panel makes closed tin body and external environment completely isolated;
Step 3, operation control panel, double-open type enters to be opened bottom sample box, and sample falls into material box, regulates variable speed fan, the plant leaf sample in material box is carried out stripping, mixes even by the gas in closed tin body simultaneously; After the particle concentration in closed tin body is stable, records the mass concentration of each particle diameter particulate matter in closed tin body, the quality of surveyed sample surfaces settling flux particulate matter can be calculated by known parameters.
Compared with prior art, the present invention has following useful effect:
One, present invention employs airtight tank design, the particulate matter that blade is blown afloat can not leak loss, but all formed in tank body and stablize aerosol, ensure that the accuracy of test and reliability.
Two, variable speed fan ensures that on blade, particulate matter is by whole stripping. Research confirms, wind speed is when more than 10m/s, and the particulate matter 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 the quiet design without dirt, and can control wind speed, this makes it possible to reach the effect that can either produce high wind and can be used for again in mixed even tank body aerosol.
Three, the present invention is rinsed by air inlet, can reach pure test air conditions, stop to bring pollution in closed tin body. Therefore, the present invention adopts the steel cylinder nitrogen without dirt to introduce in closed tin body as blanketing gas. Pure air leads to into closed tin body by the cyclic flushing pipe road on an inwall, and by pore vertically downward in pipeline flows out, reach the effect washing away airtight inner tank wall, finally extract closed tin out by off-gas pump external, reach the purification to whole interior, being washed away by repeatedly inflation, the aerosol load ensured in closed tin body inner air reaches extremely low level. Testing 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, enter sample box ingehious design, solve into a sample difficult problem. In order to solve closed tin body after rinsing well, how leaf sample being sent into the problem of closed tin body, ingehious design of the present invention double-open type enters sample box. Before tank body is rinsed, leaf sample is just put into double-open type and is entered sample box by the present invention, flushing presses the corresponding button after terminating, the bottom that double-open type can be entered sample box by the office of electromagnetic valve control is opened, leaf sample is admitted in lower square stock box thereupon, and powerful the blowing afloat of variable speed fan being applicable to bottom does not introduce new pollution.
Accompanying drawing explanation
By reading with reference to the detailed description that non-limiting example is done by the following drawings, the 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 vertical view of the artificial aerosol climate box of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail. The technician contributing to this area is understood the present invention by following examples further, but does not limit the present invention in any form. It should be appreciated that to those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some distortion and improvement. 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, closed tin body 2, variable speed fan 4, material box 5, temperature probe 6, double-open type enters sample box 7, annular air flushing pipeline 8, air inlet mouth 9, tank body top cover 10, sealing standing bolt 11, reserved detection mouth 12, operating panel 13, switch box 14, outside pressure balancing device 15, vacuum pump 16, closed tin body 2 is positioned at stainless steel casing 1, variable speed fan 4, material box 5, annular air flushing pipeline 8 is positioned at closed tin body 2 from bottom to up successively, double-open type enters sample box 7 and is positioned at material box 5, air inlet mouth 9, tank body top cover 10, operating panel 13 is all fixed on the top of stainless steel casing 1, reserved detection mouth 12 is positioned on tank body top cover 10, fixed by sealing standing bolt 11 between tank body top cover 10 and stainless steel casing 1, vacuum pump 16 is positioned at stainless steel casing 1 and is positioned at the side of closed tin body 2.
The top of stainless steel casing 1 is provided with weather gage 121, snub button 127, wind speed adjusting knob 128, sealing standing bolt 129. The outside of tank body top cover 10 is provided with sealing-ring 123.
Being provided with a two-way electrical heating wire 3 in closed tin body 2, two-way electrical heating wire 3 is positioned at the lower section of variable speed fan 4.
The inwall of closed tin body 2 is provided with a temperature probe 6, so conveniently carries out temperature control.
In the stainless steel casing 1 and side being positioned at closed tin body 2 is also provided with a switch box 14 and an outside pressure balancing device 15.
Closed tin body 2 is upper cover formula, cylindrical closed tin body, is intended to like this reduce tank body inner product ash dead angle quantity, and being convenient in closed tin body 2 aerosol mixes even and rinse. Tank body opening part and upper cover outer ring are provided with sealing-ring 123, can be completely isolated with the external world to ensure that tank body is airtight. The shape of stainless steel casing 1 is rectangular parallelepiped.
The lower section 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 top temperature of two-way electrical heating wire 3 reaches 40 DEG C (temperature-controllable, 0 DEG C��40 DEG C), is used in conjunction with temperature probe 6, can regulate temperature in closed tin body in real time, it is achieved the controllable simulation of temperature near the ground.
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, aerosol mixed even in the stripping of particulate matter and closed tin body on blade.
Material box 5 shape be half spherical reticulated structure, it is intended to avoid plant leaf sample to be blown into stuffy dead angle, ensure sample surfaces particle can by abundant stripping and settling flux.
Double-open type enters sample box 7 and adopts stainless steel cube structure, and the top and bottom that double-open type enters sample box 7 all can open wide or close, and is placed in material box 5 correspondence position. In advance plant leaf sample is put into from top during use double-open type and enters sample box 7, after closed tin body 2 cleaning inside, the switch activated device of sample is entered by the sample on-off control that enters of operating panel 13, now double-open type enters the bottom unlatching of sample box 7, plant leaf sample can be made to fall in lower square stock box 5, and do not bring new atmospheric pollution into.
The all gas outlet of annular air flushing pipeline 8, tiltedly to the inwall of closed tin body, ensures that in closed tin body 2, institute's air inlet body can fully wash away closed tin body 2 inwall, makes the particulate matter being attached on the inwall of closed tin body 2 by stripping and discharge outside closed tin body 2.
Control panel 13 is provided with and takes out gas-filled switching tube, enters sample switch, power light, pressure pilot lamp, temperature control panel, fan timer, fan switch etc.
Switch box 14 connection control panel and each components and parts, for each parts provide power supply, snub button 127 is for, under the emergency state, a key cuts off all power supplys.
Outside pressure balancing device 15 is single general formula air valve, and when internal pressure is greater than set(ting)value, valve open exhaust decompression, effect avoids closed tin body because interior pressure is excessive when taking out inflation, causes the tank bodily form to become or top cover ejection. Weather gage 121 can show pressure condition in closed tin body in real time.
The using method of the artificial aerosol climate box of the present invention comprises the following steps:
Step one, revolve pine sealing standing bolt 11, the tank body top cover 10 of reserved three screw sockets is opened, take out double-open type and enter sample box 7, plant leaf sample is placed in double-open type and enters sample box 7, then double-open type is entered sample box and settles go back to original position (fixed position in material box), lid upper tank body top cover 10, screwing hermetic standing bolt 11, is connected a particulate matter real-time monitoring instrument with reserved monitoring mouth 12; Now whole closed tin body 2 is inner isolates with external environment, and sample is positioned at double-open type and enters sample box 7, isolates with closed tin body 2 internal medium;
Step 2, after operation control panel 13 (namely open and take out gas-filled switching tube) makes pure air enter annular air flushing pipeline 8 by air inlet mouth 9, along inwall Jet with downward flow direction, the inwall of closed tin body 2 is carried out air scour, vacuum pump 16 is started working simultaneously, gas in closed tin body is extracted out together with particulate matter, after for some time, being tending towards in closed tin body clean (particle concentration reach relatively low level), operation control panel 13 (namely close and take out gas-filled switching tube) makes closed tin body and external environment completely isolated;
Step 3, operation control panel 13 (namely opening into sample switch), double-open type enters to be opened bottom sample box 7, and sample falls into material box, regulates variable speed fan 4, the plant leaf sample in material box is carried out stripping, mixes even by the gas in closed tin body simultaneously; After for some time, after the particle concentration in closed tin body is stable, the mass concentration (or Particle density) of each particle diameter particulate matter in closed tin body can be recorded, the quality of surveyed sample surfaces settling flux particulate matter can be calculated by known parameters.
The present invention produces air-flow by the rotation of fan in closed tin body, the particulate matter that leaf sample to be measured surface is absorbed and retain again is blown afloat, and forms stable aerosol structure in closed tin body.
Above specific embodiments of the invention are described. It is understood 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 the flesh and blood of the present invention.
Claims (10)
1. an artificial aerosol climate box, it is characterized in that, comprise stainless steel casing, closed tin body, variable speed fan, material box, temperature probe, double-open type enters sample box, annular air flushing pipeline, air inlet mouth, tank body top cover, sealing standing bolt, reserved detection mouth, operating panel, switch box, outside pressure balancing device, vacuum pump, closed tin body is positioned at stainless steel casing, variable speed fan, material box, annular air flushing pipeline is positioned at closed tin body from bottom to up successively, double-open type enters sample box and is positioned at material box, air inlet mouth, tank body top cover, operating panel is all fixed on the top of stainless steel casing, reserved detection mouth is positioned on tank body top cover, fixed by sealing standing bolt between tank body top cover and stainless steel casing, vacuum pump is positioned at stainless steel casing and is positioned at the side of closed tin body.
2. artificial aerosol climate box according to claim 1, it is characterised in that, it is provided with a two-way electrical heating wire in described closed tin body, two-way electrical heating wire is positioned at the lower section of variable speed fan.
3. artificial aerosol climate box according to claim 1, it is characterised in that, the inwall of described closed tin body is provided with a temperature probe.
4. artificial aerosol climate box according to claim 1, it is characterised in that, in described stainless steel casing and the side being positioned at closed tin body is also provided with a switch box and an outside pressure balancing device.
5. artificial aerosol climate box according to claim 1, it is characterised in that, described closed tin body is upper cover formula, cylindrical closed tin body.
6. artificial aerosol climate box according to claim 1, it is characterised in that, the lower section of described stainless steel casing is provided with roller.
7. artificial aerosol climate box according to claim 1, it is characterised 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, it is characterised in that, the shape of described material box is half spherical reticulated structure, and all gas outlet of annular air flushing pipeline is tiltedly to the inwall of closed tin body.
9. artificial aerosol climate box according to claim 1, it is characterised in that, described double-open type enters sample box and adopts stainless steel cube structure, and the top and bottom that double-open type enters sample box all can open wide or close.
10. the using method of an artificial aerosol climate box, it is characterised in that, comprise the following steps:
Step one, revolve pine sealing standing bolt, the tank body top cover of reserved three screw sockets is opened, take out double-open type and enter sample box, plant leaf sample is placed in double-open type and enters sample box, then double-open type is entered sample box and settles go back to original position, lid upper tank body top cover, screwing hermetic standing bolt, is connected a particulate matter real-time monitoring instrument with reserved monitoring mouth; Now whole airtight tank interior and external environment isolation, sample is positioned at double-open type and enters sample box, isolates with closed tin body internal medium;
Step 2, after operation control panel makes pure air enter annular air flushing pipeline by air inlet mouth, along inwall Jet with downward flow direction, the inwall of closed tin body is carried out air scour, vacuum pump is started working simultaneously, being extracted out together with particulate matter by gas in closed tin body, be tending towards clean in closed tin body, operation control panel makes closed tin body and external environment completely isolated;
Step 3, operation control panel, double-open type enters to be opened bottom sample box, and sample falls into material box, regulates variable speed fan, the plant leaf sample in material box is carried out stripping, mixes even by the gas in closed tin body simultaneously; After the particle concentration in closed tin body is stable, records the mass concentration of each particle diameter particulate matter in closed tin body, the quality of surveyed sample surfaces settling flux particulate matter can be calculated by known parameters.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| 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 |
| CN108656156B (en) * | 2018-05-15 | 2020-11-06 | 上海交通大学 | Self-circulation smoke-sweeping and removing box and using method thereof |
| 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 |
| 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 |
| CN110411907B (en) * | 2019-06-19 | 2020-05-22 | 上海交通大学 | Method, system and medium for measuring coagulation efficiency of submicron particles on plant leaves |
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| CN102252931A (en) * | 2011-04-01 | 2011-11-23 | 北华大学 | Measuring device of dust retention quantity of tree |
| CN102980992A (en) * | 2012-10-31 | 2013-03-20 | 北京林业大学 | Method and apparatus for measuring value of particulate matters capable of entering into lung and adsorbed by twigs |
| CN103207268A (en) * | 2013-03-12 | 2013-07-17 | 北京林业大学 | Environmental simulation test box for quantitatively analyzing PM2.5 (fine particulate matter) absorbing capability of plants |
| CN103278433A (en) * | 2013-05-16 | 2013-09-04 | 北京林业大学 | Device and method for researching particle absorbing capability of plants |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3000411A1 (en) * | 2012-12-31 | 2014-07-04 | Total Sa | IMPACT OF BACTERIA ON INTERFACES BETWEEN TWO NON-MISCIBLE FLUIDS |
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| CN102252931A (en) * | 2011-04-01 | 2011-11-23 | 北华大学 | Measuring device of dust retention quantity of tree |
| CN102980992A (en) * | 2012-10-31 | 2013-03-20 | 北京林业大学 | Method and apparatus for measuring value of particulate matters capable of entering into lung and adsorbed by twigs |
| CN103207268A (en) * | 2013-03-12 | 2013-07-17 | 北京林业大学 | Environmental simulation test box for quantitatively analyzing PM2.5 (fine particulate matter) absorbing capability of plants |
| CN103278433A (en) * | 2013-05-16 | 2013-09-04 | 北京林业大学 | Device and method for researching particle absorbing capability of plants |
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