CN102252931B - Measuring device of dust retention quantity of tree - Google Patents

Measuring device of dust retention quantity of tree Download PDF

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Publication number
CN102252931B
CN102252931B CN 201110084437 CN201110084437A CN102252931B CN 102252931 B CN102252931 B CN 102252931B CN 201110084437 CN201110084437 CN 201110084437 CN 201110084437 A CN201110084437 A CN 201110084437A CN 102252931 B CN102252931 B CN 102252931B
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dust
weighing plate
tree
measuring device
urceolus
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CN 201110084437
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CN102252931A (en
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戚继忠
李建永
王宏俊
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Beihua University
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Beihua University
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Abstract

The invention provides a measuring device of the dust retention quantity of a tree, which is characterized by comprising an outer cylinder, wherein an inner cylinder is arranged in the outer cylinder and has a gap with the outer cylinder; the gap and an inner cavity of the inner cylinder form a dust circulation channel; tree support inserting holes are formed on the side wall of the inner cylinder; the bottom of the outer cylinder is movably connected with a weighing plate, an electric fan is arranged on the weighing plate, and dust is placed on the weighing plate; the top of the outer cylinder is in tight coupling with an upper end cover, a weighing device is arranged below the weighing plate; the weighing device comprises a leveling type support, wherein a weighing sensor and an airbag elevator are arranged on the leveling type support, and the weighing plate is arranged on the airbag elevator or the weighing sensor; a water level balance indicator is arranged on the leveling type support; and adjusting bolts are arranged at the four corners of the leveling type support. The measuring device for the dust retention quantity of the tree has the advantages of reasonable structure, simpleness and convenience for measurement, time saving, high accuracy rate and capability of obtaining the measurement results through indirect measurement.

Description

Measuring device of dust retention quantity of tree
Technical field
The present invention relates to surveying instrument, more particularly, is a kind of measuring device of dust retention quantity of tree.
Background technology
The branches and leaves of trees have the function of laying the dust, and can reduce airborne dust.But different because of seeds, the amount of laying the dust of unit area widely different need to detect the branches and leaves amount of laying the dust of different cultivars trees, so that the many seeds of the selection amount of laying the dust of science carry out artificial planting afforestation; In addition, also can be by detecting dust retention quantity of tree, the evaluation air pollution degree.
The detection method of existing dust retention quantity of tree routine is under the branches and leaves laying dust of trees is brushed with hairbrush or water embathes, process again, weigh, brush dirt process is kept away unavoidably dust loss, water embathes to be needed by oven dry, certainly will there be part soluble dust or thinner particle to run off with water vapor in the drying course, exist the deficiencies such as time-consuming, that the detection error is large, accuracy rate is low.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of rational in infrastructure, adopts reverse principle, can obtain measurement result by indirectly measuring, and measuring method is easy, save time and measuring device of dust retention quantity of tree that accuracy rate is high.
Solving the technical scheme that its technical matters adopts is: a kind of measuring device of dust retention quantity of tree, it is characterized in that: it comprises urceolus, inner core is set in urceolus, be provided with the gap between urceolus and the inner core, the inner chamber of described gap and inner core consists of the dust circulation channel, at the inner core sidewall tree holder patchhole is set, the bottom of urceolus and weighing plate are flexibly connected, at weighing plate electric fan is set, place dust at weighing plate, urceolus top and upper end cover are tightly connected, and are provided with meausring apparatus below weighing plate, and the structure of described meausring apparatus is, comprise leveling formula bearing, at leveling formula bearing LOAD CELLS and air bag lifter are set, described weighing plate places on the air bag lifter, or on the LOAD CELLS.
The concave surface of placing dust is set at described weighing plate.
On described leveling formula bearing, be provided with the water level balance indicator, be provided with the adjustment bolt at the Si Jiaochu of leveling formula bearing.
Drum outer wall is provided with support column outside.
When using measuring device of dust retention quantity of tree of the present invention, after the branches and leaves sample of the trees to be measured of collection is weighed on request, be inserted in the tree holder of inner core sidewall, the dust that gathers is on request weighed and is placed in the concave surface of weighing plate, starting electric fan blows afloat dust and is suspension and along dust circulation channel circulation, dust is in the process of circulation, free setting and being attached on the branches and leaves surface of trees to be measured, until the branches and leaves laying dust is saturated, utilize difference and the branches and leaves surface area of dust front and back weight to calculate the saturated value that lays the dust.It is rational in infrastructure, can be by indirectly measuring measurement result, measuring method is easy, save time and accuracy rate high.
Description of drawings
Fig. 1 is measuring device of dust retention quantity of tree structure cross-sectional schematic of the present invention.
Fig. 2 is measuring device of dust retention quantity of tree perspective view of the present invention.
Fig. 3 is that dust of the present invention is through dust circulation channel circulation view.
Among the figure: 1 urceolus, 2 inner cores, 3 tree holders, 4 weighing plates, 5 folding clips, 6 electric fans, 7 O-ring seals, 8 upper end covers, 9 leveling formula bearings, 10 LOAD CELLS, 11 air bag lifters, 12 water level balance indicators, 13 adjust bolt, 14 support columns, the 15 airflow diversion conical surfaces, 16 air bags, 17 branches, 18 displays, 19 concave surfaces.
Embodiment
The below utilizes the drawings and specific embodiments, and the invention will be further described.
With reference to Fig. 1 and 2, measuring device of dust retention quantity of tree of the present invention comprises urceolus 1, at the urceolus 1 interior inner core 2 that arranges, is provided with the gap between urceolus 1 and the inner core 2, and the inner chamber of described gap and inner core 2 consists of the dust circulation channel.At inner core 2 sidewalls tree holder 3 patchholes are set, the bottom of urceolus 1 and weighing plate 4 are flexibly connected, and present embodiment adopts folding clip 5 clampings.At weighing plate 4 electric fan 6 is set, places dust at weighing plate 4, dust is placed in the concave surface 19 that arranges on the weighing plate 4.Urceolus 1 top is tightly connected by O-ring seal 7 and upper end cover 8.Below weighing plate 4, be provided with meausring apparatus, the structure of described meausring apparatus is, comprises leveling formula bearing 9, at leveling formula bearing 9 LOAD CELLS 10 and air bag lifter 11 is set, described weighing plate 4 places on the air bag lifter 11, or on the LOAD CELLS 10.On described leveling formula bearing 9, be provided with water level balance indicator 12, be provided with at the Si Jiaochu of leveling formula bearing 9 and adjust bolt 13.Be provided with support column 14 at urceolus 1 outer wall.
The technical parameter of indefiniteness embodiment:
Measuring device of dust retention quantity of tree height 756mm of the present invention, circumference take up an area 815mm * 520mm, and inner core internal diameter 400mm holds the branches and leaves samples of long 200~300mm trees to be measured, limb pitch angle-25~50 ° in the chamber, measuring accuracy 0.1mg; It is 400g that dust is deposited quality.The wind speed adjustable extent is: 1~7 grade.The humidity controlled range is: 0%~50%RH.Urceolus 1 and inner core 2 are one-body molded, and its material is fiberglass or transparent plastic, to make things convenient for observation experiment progress and experimental detail situation.Whole large face plate 4 comprises that electric fan 6 quality have 800g altogether, can place dust quality 400g.Because range and the accuracy limitations of LOAD CELLS 10 need to adopt three groups of LOAD CELLS 10 to act on simultaneously, it is 1.2kg that three groups of LOAD CELLS 10 add up to maximum range, weighing precision 0.1mg.
With reference to Fig. 3, dust is through the formation of dust circulation channel circulation: the flabellum of electric fan 6 is contained in the bottom of inner core 2, the wind speed of different stage can be provided, when the beginning simulated environment, electric fan 6 is started working, air-flow flows from the bottom to top in the inner chamber of inner core 2 under the effect of flabellum, when arriving the inner chamber commanding elevation, upper end cover 8 is provided with the airflow diversion conical surface 15 at the place, commanding elevation, under the conical surface 15 effects, air-flow from top to bottom flows via the gap of inside and outside cylinder 1,2, to realize that dust is through dust circulation channel circulation.Whole dust circulation channel inner wall smooth without the sudden change contact point, affects experimental result to prevent dust to be trapped in the chamber wall.
In experimentation, measuring device of dust retention quantity of tree should be avoided vibrations, in order to avoid cause being detained dust releasing.When weighing plate 4 is carried out weighing, weighing plate 4 and urceolus 1 need to be broken away from, at urceolus 1 outer wall support column 14 is set and is used for supporting urceolus 1.
Supported by air bag lifter 11 below weighing plate 4, air bag lifter 11 is an annular air-pocket, manually controls inflation and the venting of lifting gasbag 11, realizes that weighing plate 4 rises slowly or descends.
Owing in experimentation, will keep horizontality, be provided with leveling formula bearing 9 on the measuring device of dust retention quantity of tree, on leveling formula bearing 9, be provided with water level balance indicator 12, be provided with adjustment bolt 13 at the Si Jiaochu of leveling formula bearing 9, adjust bolt 13 adjustment measuring device of dust retention quantity of trees by four and be the level of state, reach the equilibrium position by balance indicator 12 indications.
Tree holder 3 is replacings of branch 17 during for convenient experiment, and avoid between branches and leaves 17 and the inner core 2 chamber walls forming corner angle experimental result is impacted, having increased tree holder 3 at branch 17 ends, this tree asks 3 to can be made into different specification size, in order to carry out type selecting, handled easily according to branches and leaves 17 shapes.
Measuring device of dust retention quantity of tree operation instructions of the present invention: before using, need to carry out first measuring device of dust retention quantity of tree and adjust to horizontality.Regulate horizontal adjusting bolt 13, adjust the relative height of four bolts 13 according to the position of minute bubbles in the balance indicator 12, when minute bubbles all arrive at point midway in the balance indicator 12, and finish leveling to measuring device of dust retention quantity of tree.Open upper end cover 8, the dust of certain granules degree is put down gently in the concave surface 19 that arranges on the weighing plate 4; Build upper end cover 8.Start electric fan 6 and exchange rectification campaign progression to testing rank, close electric fan 6 power supplys after reaching setting-up time, open three folding clips 5 on the weighing plate 4, weighing plate 4 and urceolus 1 are broken away from, make air bag 16 venting by control air bag lifter 11, gas slowlies in the air bag 16 are drained, and this moment, weighing plate 4 contacted with three LOAD CELLS 10 modules, weighing-up wave was changed into demonstration weighing plate 4 is the first quality G on the display 18 that electric signal reaches prior art 0, again make airbag aeration by control air bag lifter 11, when weighing plate 4 with after the outer circulation wall contacts, lock with 5 pairs of weighing plates 4 of three folding clips.Open upper end cover 8, will insert in the hole with the tree holder 3 that tree holder 3 branches and leaves that are fixed together 17 are installed in inner core 2, note tree holder 3 angles during installation, in order to avoid produce corner angle, three folding clips 5 of weighing plate 4 are connected weighing plate 4 with urceolus 1.After carrying out the test of setting-up time, branches and leaves 17 are the laying dust state of saturation, open three folding clips 5 on the weighing plate 4, weighing plate 4 and urceolus 1 are broken away from, by 16 venting of capsule lifter 11 control air bags, gas slowlies in the air bag 16 are drained, and this moment, weighing plate 4 contacted with three LOAD CELLS 10 modules, weighing-up wave was changed into demonstration weighing plate 4 is the second quality G on the display 18 that electric signal reaches prior art 1Be trapped in the dust quality Δ G=G on the branches and leaves 0-G 1
Measuring device of dust retention quantity of tree model machine of the present invention is used through 6 months actual detection, has realized effect of the present invention.

Claims (4)

1. measuring device of dust retention quantity of tree, it is characterized in that: it comprises urceolus, inner core is set in urceolus, be provided with the gap between urceolus and the inner core, the inner chamber of described gap and inner core consists of the dust circulation channel, at the inner core sidewall tree holder patchhole is set, the bottom of urceolus and weighing plate are flexibly connected, and at weighing plate electric fan are set, place dust at weighing plate, urceolus top and upper end cover are tightly connected, and are provided with meausring apparatus below weighing plate, and the structure of described meausring apparatus is, has leveling formula bearing, at leveling formula bearing LOAD CELLS and air bag lifter are set, described weighing plate places on the air bag lifter, or on the LOAD CELLS.
2. measuring device of dust retention quantity of tree according to claim 1 is characterized in that: the concave surface of placing dust is set at described weighing plate.
3. measuring device of dust retention quantity of tree according to claim 1 is characterized in that: be provided with the water level balance indicator on described leveling formula bearing, be provided with the adjustment bolt at the Si Jiaochu of leveling formula bearing.
4. measuring device of dust retention quantity of tree according to claim 1, it is characterized in that: the outer wall at urceolus is provided with support column.
CN 201110084437 2011-04-01 2011-04-01 Measuring device of dust retention quantity of tree Expired - Fee Related CN102252931B (en)

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* Cited by examiner, † Cited by third party
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CN103411847B (en) * 2013-08-16 2015-07-15 塔里木大学 Measuring method for dust fall quantity of plant canopy leaf surface
CN104374711B (en) * 2014-10-08 2016-09-28 中国林业科学研究院资源信息研究所 A kind of trees blade face dust method for determination of amount and system
CN104374875A (en) * 2014-10-17 2015-02-25 深圳市日昇园林绿化有限公司 Dust retention detection device
CN104722340B (en) * 2015-03-02 2016-06-01 上海交通大学 artificial aerosol climate box and using method thereof
CN105181516B (en) * 2015-08-25 2018-07-06 青岛农业大学 A kind of assay method of the shrub amount of laying the dust
CN106769611B (en) * 2016-12-28 2019-01-25 南京信息工程大学 A method of it is acquired for leaves of plants table depositing dust and quantitative
CN109856173A (en) * 2018-12-03 2019-06-07 昆明理工大学 A kind of microcell measurement method of the plant leaf blade unit area amount of laying the dust
CN109490185B (en) * 2018-12-21 2021-06-29 宁夏大学 Coal base tree species dust resistance evaluation method and dust resistance tree species selection method
CN109470530A (en) * 2018-12-27 2019-03-15 新疆维吾尔自治区环境保护科学研究院 A kind of blade of broadleaf plant depositing dust continuously trapping system and its operating method
CN109856002B (en) * 2019-01-02 2021-10-15 昆明理工大学 Method for measuring effective dust retention amount of leaf surface of plant leaf
CN110108592B (en) * 2019-04-03 2021-09-10 昆明理工大学 Method for measuring plant leaf surface net settlement atmosphere PM

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