CN104406813A - Polar region snow sample collection device - Google Patents
Polar region snow sample collection device Download PDFInfo
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- CN104406813A CN104406813A CN201410738713.8A CN201410738713A CN104406813A CN 104406813 A CN104406813 A CN 104406813A CN 201410738713 A CN201410738713 A CN 201410738713A CN 104406813 A CN104406813 A CN 104406813A
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Abstract
The invention discloses a polar region snow sample collection device, and belongs to the technical field of chemical laboratory analysis. The polar region snow sample collection device is applied to fixed-point collection on the snow samples in scientific investigation in the polar region. Compared with the existing polar region snow sample collection manner, the snow samples repeatedly collected by the polar region snow sample collection device has extremely high comparability, the sampling process is simple and rapid and the accuracy rate is high; the polar region snow sample collection device can be repeatedly used, is suitable for the special environment of south and north poles with wide territory, low temperature, heavy blizzard and multiple collection points, and is a manner for replacing the existing polar region snow sample collection manner.
Description
Technical field
A kind of polar region of the present invention snow core harvester, belong to assay technical field, that one is applied in polar region section and passes the examination, snow core is carried out to the device fixing a point to gather, the present invention is compared with the snow core acquisition mode of existing polar region, adopt snow core there is high comparability, be the substitute mode of existing polar region snow core acquisition mode.
Background technology
Enter 21 century, along with a large amount of consumption of the energy exacerbate global warming, it has been recognized that the great crises that earth environment faces, than ever whenever all in the urgent need to comprehensive monitoring and research polar region environment and global environmental change.South poles accumulated snow and sea ice are the indicateing arms of Global climate change, and its ice and snow total amount stored is the crucial factor affecting Global climate change.
Due to geographic position and the geologic structure of uniqueness, to contain in south poles ice sheet and pass by the precious information of the climate and environment on the Earth changes in hundreds thousand of years, be never subject to the artificial interference of the mankind for a long time.Therefore, in the physicism such as cycle and ecological succession history of solar origin, continent forming process, climate change, there is advantageous study condition in south poles continent, or even not replaceable.
In south poles, section passes the examination, and is polar region scientific investigation important component part to the measurement of accumulated snow and monitoring, and applicant once repeatedly participates in Chinese Polar and investigates, and has an intimate knowledge to this point.
Accumulated snow is formed, wherein based on ice pellets primarily of ice, air and snow slush contained humidity.The physical parameter of accumulated snow mainly to comprise in snow depth, density, the liquid aqueous rate of accumulated snow, accumulated snow contained micro substance etc.
Due to special weather condition and the geographic position of south poles, the forming process of the accumulated snow of south poles is a very long process, bottom accumulated snow is not changed all the year round, more down the liquid aqueous rate of the higher accumulated snow of the longer density of snow of Formed age is also higher, by analyzing the density of accumulated snow between different layers, the Formed age of each interlayer accumulated snow can be extrapolated, can reflect that in global range, mankind's activity is to the process of the pollution of environment and trend by the micro substance content of accumulated snow between assay different layers.
Polar region snow core collection has its singularity, require the snow core of the same width of each aspect of multi collect same place different time, the same to degree of depth, co-altitude, same volume as far as possible, meet the requirement of the situation of change analyzing snow core density and air bells laid, make portraitlandscape to compare, thus analyze the trend of polar ice material balance.
At present, what in south poles scientific investigation, the collection of snow core adopted usually is nivation cirque acquisition method, the nivation cirque that behind selected collection point, excavated by manual work one meter in diameter is square, complete after stratigraphy profiles observation is taken pictures and carry out continuous sampling, each sample overburden depth is divided into multiple class such as 10cm, 20cm, 40cm as required.Because the amount of micro substance contained in south poles accumulated snow is considerably less, prevent sampling process artificial pollution snow core, sampling process must be carried out in strict accordance with the anti-pollution requirement of purification, leeward wall stainless steel shovel and scraper plate is selected to trim sampling face, operating personnel need wear clean garment, wear disposable clean gloves and face shield, aim at sampling face with the special sampling spade in advance in laboratory purification process directly snow core to be collected in sample sack and seal, take back and domesticly carry out assay.
There are the following problems for existing nivation cirque acquisition method:
1. labour intensity is large: each gatherer process needs more than three people, need dig one 1 meter square nivation cirque, after having gathered, need backfill nivation cirque recovery original appearance, seem very difficult under the rugged surroundings of polar region.
2. gatherer process is loaded down with trivial details: operating personnel need wear clean garment, wear disposable clean gloves and face shield.
3. comparability is poor: cause comparability difference primarily of two reasons, and one cannot find last collection hole because heavy snow covers, do not have comparability, can only separately ward off new footpath even if find in hole with snow core that artificial destruction is adopted.It two gathers because accumulated snow height is in continuous change in hole newly opening up, and this wears difficult to the same layer determining to have comparability, and wanting to fit like a glove, to depend on be impossible.
Summary of the invention
A kind of polar region of the present invention its goal of the invention of snow core harvester is: solve in prior art can not ensure multiple repairing weld adopt snow core that snow core is same sampled point and lose the problems such as comparability, thus a kind of repeatedly repeated sampling device of different sampling stages of fixing a point is disclosed, maximum feature is repeatedly that adopted snow core has high comparability, especially adapts to use in south poles scientific investigation particular surroundings.
A kind of polar region of the present invention snow core harvester, is made up of (see accompanying drawing 1) gear train, sampling mechanism, staving and height sensor, gear train is made up of leading screw 1, screw 2, crank 3, screw 9 and support 10, described leading screw 1 bottom is processed with external thread, the matching size of its relative dimensions and screw 2 internal thread closes, leading screw 1 screws in screw 2, leading screw 1 screw 2 that turns clockwise moves down on leading screw 1, be rotated counterclockwise leading screw 1 screw 2 to move up on leading screw 1, leading screw 1 topmost center is processed with an internal thread, its relative dimensions and the externally threaded matching size of bolt 13 close, leading screw 1 topmost is processed with outer four directions, the interior cubic matching size of its relative dimensions and crank 3 closes, a boss is processed with in the below in the outer four directions of leading screw 1, with end cap, leading screw 1 is fixed over the mount 10, in screw about 2 centre position, level welds a band steel, band steel welds an annulus apart from screw 1/2nd three place, conveniently be connected with height sensor 11 bracing wire, band steel bores a circular hole apart from screw 2/2nds three place, convenient with the fixing collection pawl 4 of screw 9, crank 3 adopts band steel to be made into interior four directions while jug, support 10 is processed into collar plate shape with steel plate, its external diameter matches with the external diameter gathering bucket 14, the both sides of center line stay one fixed width remainder to cut away, the bottom symmetrical of support 10 is processed with two buckles, and the width of buckle matches with the width gathering groove 8.Described sampling mechanism by gathering pawl 4, chute 5, bracket 6, collection container 7 form; Described collection pawl 4 adopts band steel to make, the width gathering pawl 4 matches with the width gathering groove 8, front portion is made into downward hook type, a circular hole is bored at the rear portion gathering pawl 4, convenient pawl 4 screw 9 that gathers is fixed with the band steel that screw 2 welds, it is dustpan shaped that chute 5 adopts stainless sheet steel to be made into, and dustpan mouth is with certain angle to be welded on bracket 6 downwards, and bracket 6 welds with the band steel be welded on screw 2.Staving is by gathering bucket 14 and protective cover 12 two parts form, described collection bucket 14 adopts stainless sheet steel to be made into hollow cylinder, open topped bottom back cover, be distributed with more than ten symmetrically at collection bucket 14 staving and gather groove 8, its degree of depth is slightly shorter than the bottom of leading screw 1; Approved product stay wire sensor selected by described height sensor 11, and install over the mount 10, its bracing wire is connected with the annulus being welded on band steel on screw 2.
A kind of polar region of the present invention snow core harvester, gathers bucket 14 and is distributed with many collection grooves 8 symmetrically, gather and once only gather the snow core that gathers groove 8, do not affect the snow core of other collection groove 8.If the collection of 1 year same period is once minimum can use more than 10 years.If the collection of 10 years same periods is once minimum can use more than a century.
A kind of polar region of the present invention snow core harvester has following features:
1. many snow cores of adopting, have high comparability;
2. sampling process simple and fast, accuracy rate is high;
3. can repeatedly use;
4. adapt to south poles region wide, temperature is low, and wind and snow is large, the particular surroundingss such as collection point is many.
Accompanying drawing explanation
Fig. 1 apparatus structure schematic diagram
Fig. 2 device A-A diagrammatic cross-section
1. leading screw 2. screw 3. crank 4. gathers pawl 5. chute 6. bracket 7. collection container 8. and gathers groove
9. screw 10. support 11. height sensor 12. protective cover 13. bolt 14. gathers bucket.
Embodiment
embodiment 1:
The application of a kind of polar region of the present invention snow core harvester in scientific investigation in the Antarctic.
1. install
After choosing collecting location, bore with snow and vertically make a call to a circular nivation cirque matched with collection bucket 14 external diameter, a whole set of harvester is vertically mounted in circular nivation cirque after assembling according to accompanying drawing 1, reserved certain altitude between its top and snow plane.Number, measure longitude and latitude and record.Measure the height of collection pawl 4 and snow surface with box chi and note down, as snow altitude datum.
2. gatherer process
The gatherer process of a kind of polar region of the present invention snow core harvester is further illustrated below in conjunction with accompanying drawing 1.2..
(1). preorder work
According to the longitude and latitude of GPS display, find this harvester, check digit.
Lay down bolt 13; remove protective cover 12; support 10 is taken out from collection bucket 14 together with leading screw 1, screw 2, crank 3, collection pawl 4, chute 5, bracket 6, collection pawl 4 is rotated forward centered by screw 9 180 ° and make collection pawl 4 stretch out collection bucket 14, tighten screw 9.Reinstalled to together by above-mentioned parts and gather in bucket 14, notice that gathering pawl 4 must insert in the collection groove 8 of the correspondence that will gather, the buckle of the bottom of support 10 must snap in corresponding collection groove 8, is put on bracket 6 by collection container 7.Height sensor 11 is connected with height display instrument.Turn clockwise crank 3, screw 2, collection pawl 4, chute 5, bracket 6 and collection container 7 move downward along collection groove 8 together, stop the rotation when gathering pawl 4 and touching snow surface crank 3, read height displayed value, keep a record as reality snow height, and make comparisons with snow altitude datum value, calculate difference.
(2). gatherer process
Turn clockwise crank 3, screw 2, collection pawl 4, chute 5, bracket 6 and collection container 7 move downward along collection groove 8 together, gathering snow core outside bucket 14 gathering under the downward effect of pawl 4 enters chute 5 by gathering groove 8, flow in collection container 7 along chute 5, when the height of height display instrument display is identical with snow altitude datum, stop the rotation crank 3, collection container 7 is taken out, in the container that adopted snow core is preserved, the height of the time that record gathers well, place (longitude and latitude), numbering, snow core and collector's name etc.
Continue the crank 3 that turns clockwise, screw 2, collection pawl 4, chute 5, bracket 6 and collection container 7 move downward along collection groove 8 together, gathering snow core outside bucket 14 gathering under the downward effect of pawl 4 enters chute 5 by gathering groove 8, flow in collection container 7 along chute 5, when the height of height display instrument display is 100mm, stop the rotation crank 3, collection container 7 is taken out, in the container that adopted snow core is preserved, the height of the time that record gathers well, place (longitude and latitude), numbering, snow core and collector's name etc.
Continue to repeat said process until the bottom of sampling groove 8, gatherer process terminates.
(3). subsequent operation
After gatherer process terminates, be rotated counterclockwise crank 3, screw 2, collection pawl 4, chute 5, bracket 6 and collection container 7 move upward along collection groove 8 together, and when gathering pawl 4 and encountering bottom support 10, crank 3 stops operating.Support 10 is taken out from collection bucket 14 together with leading screw 1, screw 2, crank 3, collection pawl 4, chute 5, bracket 6, collection pawl 4 being rotated centered by screw 9 180 ° backward makes collection pawl 4 retract in collection bucket 14, is reinstalled to together by above-mentioned parts and gathers in bucket 14.Remove height sensor 11 and height display instrument connecting line, height display instrument and collection container 7 are regained, covers protective cover 12, tight a bolt 13.
By above-mentioned sample mode and process, same collection point can be analyzed in laboratory, the different acquisition time, identical collection height adopt the situation of change of snow core, illustrate that a kind of polar region of the present invention snow core harvester has high comparability.
Claims (2)
1. a polar region snow core harvester, is made up of gear train, sampling mechanism, staving and height sensor, it is characterized in that described gear train is made up of leading screw (1), screw (2), crank (3), screw (9) and support (10), leading screw (1) bottom is processed with external thread, the matching size of its relative dimensions and screw (2) internal thread closes, leading screw (1) screws in screw (2), leading screw (1) screw (2) that turns clockwise moves down on leading screw (1), be rotated counterclockwise leading screw (1) screw (2) to move up on leading screw (1), leading screw (1) topmost center is processed with an internal thread, its relative dimensions and bolt (13) externally threaded matching size close, leading screw (1) topmost is processed with outer four directions, the interior cubic matching size of its relative dimensions and crank (3) closes, the below cubic outward at leading screw (1) is processed with a boss, with end cap, leading screw (1) is fixed on support (10), in screw (2) upper and lower centre position, level welds a band steel, band steel welds an annulus apart from screw (2) 1/3rd place, conveniently be connected with height sensor (11) bracing wire, band steel bores a circular hole apart from screw (2) 2/3rds place, convenient screw (9) is fixing gathers pawl (4), crank (3) adopts band steel to be made into interior four directions while jug, support (10) is processed into collar plate shape with steel plate, its external diameter matches with the external diameter gathering bucket 14, the both sides of center line stay one fixed width remainder to cut away, the bottom symmetrical of support (10) is processed with two buckles, the width of buckle matches with the width gathering groove (8), described sampling mechanism by gathering pawl (4), chute (5), bracket (6), collection container (7) form, gathering pawl (4) adopts band steel to make, the width gathering pawl (4) matches with the width gathering groove (8), front portion is made into downward hook type, a circular hole is bored at the rear portion gathering pawl (4), conveniently gather pawl (4) screw (9) to fix with the band steel that screw (2) welds, chute (5) adopts stainless sheet steel to be made into dustpan shaped, and dustpan mouth is with certain angle to be welded on bracket (6) downwards, and bracket (6) welds with the band steel be welded on screw (2), described staving is by gathering bucket (14) and protective cover (12) two parts form, gathering bucket (14) adopts stainless sheet steel to be made into hollow cylinder, open topped bottom back cover, and be distributed with more than ten symmetrically at collection bucket (14) staving and gather groove (8), its degree of depth is slightly shorter than the bottom of leading screw (1).
2. a kind of polar region according to claim 1 snow core harvester, is characterized in that approved product stay wire sensor selected by described height sensor (11), is arranged on support (10), and its bracing wire is connected with the annulus being welded on the upper band steel of screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738713.8A CN104406813B (en) | 2014-12-08 | 2014-12-08 | Polar region snow sample collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738713.8A CN104406813B (en) | 2014-12-08 | 2014-12-08 | Polar region snow sample collection device |
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| Publication Number | Publication Date |
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| CN104406813A true CN104406813A (en) | 2015-03-11 |
| CN104406813B CN104406813B (en) | 2017-01-25 |
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| CN201410738713.8A Active CN104406813B (en) | 2014-12-08 | 2014-12-08 | Polar region snow sample collection device |
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Cited By (5)
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| CN105973637A (en) * | 2016-05-06 | 2016-09-28 | 中国科学院寒区旱区环境与工程研究所 | Field on-site nivation cirque sampling method |
| CN106365065A (en) * | 2016-08-04 | 2017-02-01 | 内蒙古自治区林业科学研究院 | Flux tower sand collecting automatic rising-lowering device |
| CN109374851A (en) * | 2018-10-23 | 2019-02-22 | 新疆林科院森林生态研究所 | Snow device is adopted in a kind of monitoring of forest |
| CN109533082A (en) * | 2019-01-07 | 2019-03-29 | 太原理工大学 | A kind of huge six limbs leg crawler belt foot polar region scientific investigation vehicle |
| CN110940556A (en) * | 2019-12-18 | 2020-03-31 | 内蒙古工业大学 | Automatic layered sampling and snow-collecting experimental device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973637A (en) * | 2016-05-06 | 2016-09-28 | 中国科学院寒区旱区环境与工程研究所 | Field on-site nivation cirque sampling method |
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| CN106365065A (en) * | 2016-08-04 | 2017-02-01 | 内蒙古自治区林业科学研究院 | Flux tower sand collecting automatic rising-lowering device |
| CN106365065B (en) * | 2016-08-04 | 2019-08-09 | 内蒙古自治区林业科学研究院 | Flux tassor dirt acquires apparatus for automatically lifting |
| CN109374851A (en) * | 2018-10-23 | 2019-02-22 | 新疆林科院森林生态研究所 | Snow device is adopted in a kind of monitoring of forest |
| CN109374851B (en) * | 2018-10-23 | 2021-06-08 | 新疆林科院森林生态研究所 | Forest monitoring snow sampler |
| CN109533082A (en) * | 2019-01-07 | 2019-03-29 | 太原理工大学 | A kind of huge six limbs leg crawler belt foot polar region scientific investigation vehicle |
| CN109533082B (en) * | 2019-01-07 | 2023-09-22 | 太原科技大学 | Giant six-leg crawler foot polar region scientific vehicle |
| CN110940556A (en) * | 2019-12-18 | 2020-03-31 | 内蒙古工业大学 | Automatic layered sampling and snow-collecting experimental device |
| CN110940556B (en) * | 2019-12-18 | 2024-06-04 | 内蒙古工业大学 | Automatic layering sampling snow collecting experimental device |
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