CN105259217A - Overlying water salt content monitoring device for sediment of farmland drainage ditch - Google Patents
Overlying water salt content monitoring device for sediment of farmland drainage ditch Download PDFInfo
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- CN105259217A CN105259217A CN201510840536.9A CN201510840536A CN105259217A CN 105259217 A CN105259217 A CN 105259217A CN 201510840536 A CN201510840536 A CN 201510840536A CN 105259217 A CN105259217 A CN 105259217A
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- drainage ditch
- organic glass
- monitoring device
- overlying water
- sediment
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Abstract
The invention discloses an overlying water salt content monitoring device for sediment of a farmland drainage ditch and relates to the technical field of farmland water conservancy and irrigation. A signal converter is arranged on the top of an organic glass column, an external electrode and a bearing shaft are arranged in the organic glass column, a bottom mud solution sampling module is arranged at the bottom of the organic glass column, the electrode head of the external electrode faces outwards and is in contact with bottom mud, and an air pump is arranged in the bottom mud solution sampling module and used for collecting the bottom mud solution. The overlying water salt content monitoring device ahs the advantages that visualization of measurement data is achieved, the internal mechanism problem of release of bottom mud salt of the farmland drainage ditch is solved, and broad application prospects are achieved.
Description
Technical field
The present invention relates to farmland water conservancy works technical field, be specifically related to a kind of farmland drainage ditch sedimental overlying water salinity monitoring device.
Background technology
Along with further developing of China's farmland irrigating drainage technology, farmland-escape canal-wetland pattern is adopted application gradually.Trench drain is in the process of long-time running, define the farmland drainage ditch ecosystem environment comprising bed mud, microorganism, overlying water and emergent aquactic plant thereof etc., and bed mud is one of important interface wherein as a kind of argillaceous sediment and its overlying water interface, to the circulation of material in trench drain, shifting, store important effect, is a requisite ring in the water salt dynamic research of trench drain.The change of its water salt dynamic has vital scientific meaning to the exploitation of alkaline land improving, middle-and-low-yielding fields, farmland wet land protection.
To the research of farmland drainage ditch Salt Transport Characteristics in Soil rule, now mainly contain in-situ observation and lab simulation two kinds of methods.The uncontinuity of this device for data sample in indoor soil-column simulation process and the asynchronism of each point sampling, invent a kind of in indoor to the dynamic change of trench drain bed mud salinity and the interior information-based device truly portrayed in migration mechanism thereof.
Summary of the invention
The object of this invention is to provide a kind of farmland drainage ditch sedimental overlying water salinity monitoring device, it achieve the visual of measurement data, solve farmland drainage ditch salt release from sediment inherent mechanism problem, there is larger application prospect.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: it comprises signal converter, organic glass post, external electrode, load axle, bed mud solution sampling module; The top of organic glass post is provided with signal converter, and external electrode, load axle are arranged at the inside of organic glass post, and the bottom of organic glass post is provided with bed mud solution sampling module.
The electrode tip of described external electrode outwardly.
Air pump is provided with in described bed mud solution sampling module.
After adopting said structure, beneficial effect of the present invention is:
1, this device achieves and measures, by measurement data by realizing the visual of measurement data in Bluetooth transmission to computing machine the layering real-time online measuring of overlying water section salinity and the stratified sampling of bed mud pore water.
2, can Salt Transport Characteristics in Soil information in simulated farmland trench drain, study further by constantly adding other natural conditions, exploitation directly can measure the device of farmland drainage ditch sediment-overlying water section salt dynamics, fill up the blank of existing measuring method, solve the salinity release inherent mechanism problem in farmland drainage ditch, there is larger application prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is signals collecting and conversion circuit figure;
Fig. 3 is experimental phase apparatus structure.
Description of reference numerals:
1-signal converter; 2-organic glass post; 3-external electrode; 4-load axle; 5-bed mud solution sampling module.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, this embodiment adopts following technical scheme: it comprises signal converter 1, organic glass post 2, external electrode 3, load axle 4, bed mud solution sampling module 5; The top of organic glass post 2 is provided with signal converter 1, and external electrode 3, load axle 4 are arranged at the inside of organic glass post 2, and the bottom of organic glass post 2 is provided with bed mud solution sampling module 5.
The electrode tip of described external electrode 3 contacts with bed mud solution outwardly.
Be provided with air pump in described bed mud solution sampling module 5, collect bed mud solution by air pump.
In design process of the present invention, mainly carried out following research work, (wherein parts comprise: 6-organic glass post as shown in Figure 3; 7-bed mud pore water thief hole; 8-conductivity electrode; 9-soil and overlying water micro-interface; 10-adjustable-height draw-in groove; 11-worktable; 12-water check valve):
1, with the salt exchange of indoor soil-column simulation trench drain sediment-overlying water, experimental result shows: there is high salinity transition region within the scope of sediment-overlying water interface 10cm, more than 10cm is basically identical, and the instrument for the later stage simplifies the science that provides and uses for reference;
2, select four pole type electrode as the foundation of conductivity measurement, at organic glass post, central authorities arrange draw-in groove, are fixed on draw-in groove by four pole type conductivity meter, and sediment-overlying water interface 10cm scope places 5 electrodes, and more than 10cm places in region 1 electrode;
3,6 electrodes are accessed from top to bottom the hyperchannel single-chip microcomputer of repacking according to numbering, carry out synchro measure and the Dynamic Announce of data;
4, Dutch Rhizon soil liquid sampler and negative pressure solution sampling room is adopted to carry out stratified sampling measurement to Sediment Pore Water salinity;
5, bed mud solution sampling and the measurement of overlying water salinity are integrated in same device the visual display carrying out salinity kinetic measurement and data by the present invention, and the finished product that final design goes out is the measuring staff that trench drain, field direct layering is measured.
The principle of work of this embodiment is: carry out synchro measure by each four pole type conductivity electrode to sediment-overlying water section salinity, signal is converted into the receivable digital signal of single-chip microcomputer by A/D converter, shows (as Fig. 2) on a display screen.Meanwhile, by Rhizon soil liquid sampler, the measurement of conductivity is carried out in the extraction of low for bed mud pore water impact, online acquisition data, finally obtain the curve of sediment-overlying water salt dynamics, are used for probing into the inherent mechanism of salt release from sediment.
The above, only in order to technical scheme of the present invention to be described and unrestricted, other amendment that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (3)
1. a farmland drainage ditch sedimental overlying water salinity monitoring device, is characterized in that: it comprises signal converter, organic glass post, external electrode, load axle, bed mud solution sampling module; The top of organic glass post is provided with signal converter, and external electrode, load axle are arranged at the inside of organic glass post, and the bottom of organic glass post is provided with bed mud solution sampling module.
2. a kind of farmland drainage ditch according to claim 1 sedimental overlying water salinity monitoring device, is characterized in that the electrode tip of described external electrode outwardly.
3. a kind of farmland drainage ditch according to claim 1 sedimental overlying water salinity monitoring device, is characterized in that being provided with air pump in described bed mud solution sampling module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510840536.9A CN105259217A (en) | 2015-11-27 | 2015-11-27 | Overlying water salt content monitoring device for sediment of farmland drainage ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510840536.9A CN105259217A (en) | 2015-11-27 | 2015-11-27 | Overlying water salt content monitoring device for sediment of farmland drainage ditch |
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| CN105259217A true CN105259217A (en) | 2016-01-20 |
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| CN201510840536.9A Pending CN105259217A (en) | 2015-11-27 | 2015-11-27 | Overlying water salt content monitoring device for sediment of farmland drainage ditch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284247A (en) * | 2016-08-29 | 2017-01-04 | 山东胜伟园林科技有限公司 | A kind of irrigation canals and ditches that can monitor salt concentration and water level in real time |
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| JPS61110043A (en) * | 1984-11-05 | 1986-05-28 | Mitsubishi Heavy Ind Ltd | Measurement for concentration of salt in aqueous solution |
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2015
- 2015-11-27 CN CN201510840536.9A patent/CN105259217A/en active Pending
Patent Citations (6)
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| JPS61110043A (en) * | 1984-11-05 | 1986-05-28 | Mitsubishi Heavy Ind Ltd | Measurement for concentration of salt in aqueous solution |
| CN102305814A (en) * | 2011-05-25 | 2012-01-04 | 中国海洋大学 | System and method for monitoring seawater intrusion-ground water level-soil salinization in real time |
| CN102305813A (en) * | 2011-05-25 | 2012-01-04 | 青岛滩海工程咨询研究院 | In-situ, real-time and automatic monitoring system and method in soil water and salt transport process |
| CN104458339A (en) * | 2014-11-07 | 2015-03-25 | 中国科学院东北地理与农业生态研究所 | Fixed depth pore water monitoring sampler and sampling method |
| CN104990765A (en) * | 2015-07-10 | 2015-10-21 | 华南理工大学 | Instrument and method for monitoring inshore and estuary sedimentary layer pore water |
| CN205103202U (en) * | 2015-11-27 | 2016-03-23 | 南昌工程学院 | Agricultural drain ditch deposit coat water salinity monitoring devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106284247A (en) * | 2016-08-29 | 2017-01-04 | 山东胜伟园林科技有限公司 | A kind of irrigation canals and ditches that can monitor salt concentration and water level in real time |
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Application publication date: 20160120 |