CN104849184A - Micro-area closing apparatus for simulating atmospheric dust dry deposition - Google Patents
Micro-area closing apparatus for simulating atmospheric dust dry deposition Download PDFInfo
- Publication number
- CN104849184A CN104849184A CN201510180152.9A CN201510180152A CN104849184A CN 104849184 A CN104849184 A CN 104849184A CN 201510180152 A CN201510180152 A CN 201510180152A CN 104849184 A CN104849184 A CN 104849184A
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- Prior art keywords
- disturbance
- upper space
- dry deposition
- dust
- space
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- 238000000469 dry deposition Methods 0.000 title claims abstract description 22
- 239000000428 dust Substances 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000003032 molecular docking Methods 0.000 claims description 7
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 13
- 235000013311 vegetables Nutrition 0.000 abstract description 12
- 239000002689 soil Substances 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000000151 deposition Methods 0.000 description 7
- 238000004088 simulation Methods 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The present invention discloses a micro-area closing apparatus for simulating atmospheric dust dry deposition. According to the present invention, the apparatus is a five-sided rectangular box structure, wherein the middle portion is provided with a disturbance layer movable separation plate so as to divide into an upper space and a lower space, the top portion is provided with a movable baffle, both side surfaces of the upper space are respectively provided with a fan and a disturbance layer movable baffle, the front surface of the upper space is provided with a sample inlet hole, the sample inlet hole is provided with a sealing baffle, and the front surface and the back surface of the upper space are provided with moving handles; and with the apparatus of the present invention, the closed environment can be created, and the dust can be subjected to sufficient disturbance so as to make the dust be distributed in the whole disturbance space and make the heavy metal-containing dust can uniformly fall on the surface of vegetable leaves in a soil or the soil surface layer through the gravity effect, such that the technical support is provided for understanding of the heavy metal bioavailability in the atmospheric dry deposition-soil-vegetable system and the change characteristics thereof.
Description
Technical field
The present invention relates to urban environment field of engineering technology, especially can realizing a device for room atmosphere dry deposition microcell simulation process, providing technical support for understanding bioavailability of heavy metals and variation characteristic thereof in dry deposition-Soil-Vegetable System in depth.
Background technology
At present, atmospheric sedimentation has been confirmed to be one of main source of crops and Heavy Metals In Vegetables near city industrial area.Large gas-powered toxic metals can chronic pollution agricultural land soil-vegetables ecosystem, or even is positioned at the place away from emission source.Take in by diet the vegetables being subject to heavy metal pollution and may form long-term serious threat to health.In recent years, the trend that trace meter atmospheric sedimentation amount rises is had all over the world.Therefore be necessary that the Flux to atmosphere dried wet deposition heavy metal and the polluting effect to vegetables carry out more deep research.Study the heavy metal in dry deposition just needs a set of simulated atmosphere dry deposition apparatus and method on the impact of vegetables, can the as far as possible scientifically normal dry deposition process of simulated atmosphere, the dust being rich in heavy metal to be descended slowly and lightly vegetables leaf and soil surface in booth as far as possible equably according to dry deposition flux, thus simulate similar dry deposition process, disclose dry deposition further to the heavy metal pollution effect of soil-Vegetable System.Because setting chamber should consider the impact intercepting atmosphere dried wet deposition completely, meet the normal exchange of air-flow inside and outside canopy again, how developing airtight atmospheric sedimentation analogue means is that project is carried out and one of key technical problems that must solve in implementation process, the device of simulated atmosphere dry deposition not only requires to have good leakproofness, also will take into account the feature considering Real Atmosphere dry deposition simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of microcell obturator of simulated atmosphere dust dry deposition, this device can create an airtight environment, dust containing heavy metal is descended slowly and lightly to the vegetable leaf sub-surface on a certain plot or upper soll layer uniformly by Action of Gravity Field, the vegetables on adjacent plot is not had any impact simultaneously.This device can carry out sufficient disturbance to dust, dust is made to spread all in whole disturbance space, thus finally can evenly descend slowly and lightly to the every nook and cranny of bottom, provide technical support for understanding bioavailability of heavy metals and variation characteristic thereof in dry deposition-Soil-Vegetable System.
The object of the present invention is achieved like this:
A microcell obturator for simulated atmosphere dust dry deposition, feature is this device is five rectangular box structures, and be provided with disturbance layer active clapboard in the middle part of it and be divided into upper and lower space, top is provided with shifting board; Two sides, upper space are respectively equipped with fan and disturbance layer shifting board, and front, upper space is provided with sample holes, and sample holes is provided with sealing baffle; Front and back, upper space is provided with moves handle.
Described disturbance layer active clapboard is drawing and pulling type, is made up of two pieces of docking, and docking port is concavo-convex.
Described shifting board is dislocation pull removable jew.
Described disturbance layer shifting board is located at both sides, space outside surface and is positioned on disturbance layer active clapboard.
Described fan is two groups, shifts to install on two sides, upper space.
Beneficial effect of the present invention:
(1) provide a closed system at different external condition Imitating air nature dry deposition, environment does not have any impact to external world simultaneously.
(2) design the disturbance layer of an air borne dust first, 4 built-in strong electric fans have been installed, by aerodynamic force condition, sufficient disturbance have been carried out to SEDIMENTATION FOR FINE PARTICLE thing.
(3) in practical application, except consuming small part electric power, substantially only complete whole depositing dust process by Action of Gravity Field, economical environment-protective, structure are simple, cost is low and easily operate, can the dry deposition process of simulated atmosphere effectively.Thus provide technical support in Soil-Vegetable System from the biological effectiveness of the heavy metal of dry deposition and variation characteristic thereof.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to side view;
Fig. 3 is disturbance layer active clapboard docking port structural representation of the present invention.
Embodiment
Consult Fig. 1-3, the present invention is five rectangular box structures 8, and be provided with disturbance layer active clapboard 7 in the middle part of it and five rectangular box structures 8 are divided into upper and lower space, top is provided with shifting board 1; Two sides, upper space are respectively equipped with fan 4 and disturbance layer shifting board 5, front, upper space is provided with sample holes 3, and sample holes 3 is provided with sealing baffle 2; Front and back, upper space is provided with moves handle 6.
Described disturbance layer active clapboard 7 is drawing and pulling type, is made up of two pieces of docking, and docking port is concavo-convex 9.
Described shifting board 1 is dislocation pull removable jew.
Described disturbance layer shifting board 5 is located at both sides, space outside surface and is positioned on disturbance layer active clapboard 7.
Described fan 4 is two groups, shifts to install on two sides, upper space.
The course of work of the present invention comprises: the sample introduction of precipitum, to the simulation of precipitum aerodynamic force condition disturbance and natural subsidence simulation, specific as follows:
The sample introduction of precipitum: weigh in the balance and get appropriate precipitum, push the sample holes sealing baffle 2 outside sample holes 3 aside, precipitum is put into sample holes, precipitum blasted the upper space to body structure 8 with ensilage dump blower, sample holes sealing baffle 2 is reversed to original position, make casing airtight, switch on power rapidly simultaneously, open fan 4.
The simulation of aerodynamic force condition disturbance: form an airtight disturbance layer by the shifting board 1 at top, the disturbance layer active clapboard 7 at middle part and body structure 8 pairs of precipitums, by fan 4, the disturbance layer of casing the first half is made to form powerful cross-ventilation, the precipitum in abundant this layer of disturbance.
Natural subsidence is simulated: extracted out respectively to both sides by piece disturbance layer active clapboard 7 of two in the middle part of body structure 8, to leave behind the disturbance layer shifting board 5 of both sides, the shifting board 1 at such top, sample holes sealing baffle 2, disturbance layer shifting board 5 and body structure 8 form setting chamber, by Action of Gravity Field, the precipitum of fully disturbance is evenly descended slowly and lightly at leisure to bottom.
Embodiment 1
At green house of vegetables, the simulation of dust dry deposition is carried out to a certain block vegetables.
First device is lifted the plot of removing to needing depositing dust by moving handle 6, being covered on by device needs on the vegetables of depositing dust, and makes device and ground close contact, then builds shifting board 1, grafting good disturbance layer active clapboard 7.Ready precipitum is put into sample holes 3, is blasted with ensilage dump blower, sample holes of closing sealing baffle 2, switch on power rapidly simultaneously, the precipitum opened in fan 4 pairs of first half disturbance layers carries out abundant disturbance.Close fan 4, rapidly two pieces of disturbance layer active clapboards 7 are extracted out, put down disturbance layer shifting board 5, precipitum is descended slowly and lightly in dish leaf and soil naturally by Action of Gravity Field, after the abundant sedimentation of precipitum, device is removed.
Embodiment 2
In experimental plot, the simulation of dust dry deposition is carried out to the soil of a certain block.
First device is lifted the plot of removing to needing depositing dust by moving handle 6, being covered on by device needs on the plot of depositing dust, and makes device and ground close contact, then builds shifting board 1, grafting good disturbance layer active clapboard 7.Ready precipitum is put into sample holes 3, is blasted with ensilage dump blower, sample holes of closing sealing baffle 2, switch on power rapidly simultaneously, the precipitum opened in fan 4 pairs of first half disturbance layers carries out abundant disturbance.Close fan 4, rapidly two pieces of disturbance layer active clapboards 7 are extracted out, put down disturbance layer shifting board 5, make precipitum naturally descend slowly and lightly on soil by Action of Gravity Field, after the abundant sedimentation of precipitum, device is removed.
By simulation settling process, the indices data that dust dry deposition is grown up on vegetables and affected preserving soil moisture can be analyzed, thus provide technical support in Soil-Vegetable System from the biological effectiveness of the heavy metal of dry deposition and variation characteristic thereof.
Claims (5)
1. a microcell obturator for simulated atmosphere dust dry deposition, is characterized in that this device is five rectangular box structures, and be provided with disturbance layer active clapboard in the middle part of it and be divided into upper and lower space, top is provided with shifting board; Two sides, upper space are respectively equipped with fan and disturbance layer shifting board, and front, upper space is provided with sample holes, and sample holes is provided with sealing baffle; Front and back, upper space is provided with moves handle.
2. device according to claim 1, it is characterized in that described disturbance layer active clapboard is drawing and pulling type, be made up of two pieces of docking, docking port is concavo-convex.
3. device according to claim 1, is characterized in that described shifting board is for dislocation pull removable jew.
4. device according to claim 1, is characterized in that described disturbance layer shifting board is located at both sides, space outside surface and is positioned on disturbance layer active clapboard.
5. device according to claim 1, is characterized in that described fan is two groups, shifts to install on two sides, upper space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180152.9A CN104849184B (en) | 2015-04-16 | 2015-04-16 | Micro-area closing apparatus for simulating atmospheric dust dry deposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180152.9A CN104849184B (en) | 2015-04-16 | 2015-04-16 | Micro-area closing apparatus for simulating atmospheric dust dry deposition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104849184A true CN104849184A (en) | 2015-08-19 |
| CN104849184B CN104849184B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510180152.9A Expired - Fee Related CN104849184B (en) | 2015-04-16 | 2015-04-16 | Micro-area closing apparatus for simulating atmospheric dust dry deposition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104849184B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865995A (en) * | 2016-05-20 | 2016-08-17 | 王恒标 | Dust adsorption quantity detection device of green plant leaves |
| CN108419577A (en) * | 2018-04-20 | 2018-08-21 | 新疆农业科学院土壤肥料与农业节水研究所(新疆维吾尔自治区新型肥料研究中心) | A kind of outdoor planting atmospheric sedimentation isolation culture apparatus |
| CN113049432A (en) * | 2021-03-24 | 2021-06-29 | 清华大学深圳国际研究生院 | Artificial dirt accumulation device and method |
| CN113092189A (en) * | 2021-05-18 | 2021-07-09 | 河北省地质调查院 | Device suitable for connecting atmosphere to subside on flat table top |
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2015
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865995A (en) * | 2016-05-20 | 2016-08-17 | 王恒标 | Dust adsorption quantity detection device of green plant leaves |
| CN105865995B (en) * | 2016-05-20 | 2019-04-30 | 王恒标 | Green plants blade lays the dust amount detecting device |
| CN108419577A (en) * | 2018-04-20 | 2018-08-21 | 新疆农业科学院土壤肥料与农业节水研究所(新疆维吾尔自治区新型肥料研究中心) | A kind of outdoor planting atmospheric sedimentation isolation culture apparatus |
| CN113049432A (en) * | 2021-03-24 | 2021-06-29 | 清华大学深圳国际研究生院 | Artificial dirt accumulation device and method |
| CN113092189A (en) * | 2021-05-18 | 2021-07-09 | 河北省地质调查院 | Device suitable for connecting atmosphere to subside on flat table top |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104849184B (en) | 2017-05-24 |
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Granted publication date: 20170524 |