CN202159003U - Soil evaporation potential measuring device - Google Patents
Soil evaporation potential measuring device Download PDFInfo
- Publication number
- CN202159003U CN202159003U CN2011202655758U CN201120265575U CN202159003U CN 202159003 U CN202159003 U CN 202159003U CN 2011202655758 U CN2011202655758 U CN 2011202655758U CN 201120265575 U CN201120265575 U CN 201120265575U CN 202159003 U CN202159003 U CN 202159003U
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- soil
- tube
- potentiality
- inner core
- evaporation
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Abstract
The utility model relates to a soil evaporation potential measuring device comprising an outer sleeve, an inner barrel, a measuring barrel, a water supply pipe A, a connecting pipe, a Ma-bottle A, a weighing sensor, a weighing readout instrument, a Ma-bottle B, and a water supply pipe B, wherein the outer sleeve is internally provided with the inner barrel and the water supply pipe A; the water supply pipe A is connected with the Ma-bottle A through the connecting pipe; the inner barrel is internally provided with the measuring barrel and the weighing sensor; the measuring barrel is arranged on the weighing sensor; the measuring barrel is internally provided with the Ma-bottle B and the water supply pipe B; and the weighing sensor is connected with the readout instrument. The device is simple in structure and convenient in use.
Description
Technical field
The utility model belongs to water balance observation technology field, farmland, is specifically related to a kind of soil evaporation potentiality measurement mechanism.
Background technology
Soil evaporation is meant that soil moisture spills into the process in the atmosphere through soil surface with steam state.The soil evaporation potentiality, promptly the soil potential evaporation amount is meant the water evaporation quantity of soil when unlimited water supply.In the soil evaporation process of reality, when soil moisture content during greater than field capacity, its evaporation capacity is near the soil evaporation potentiality.The soil evaporativeness of this moment only receives the influence of soil surface characteristic and evaporitic environment.
Use container to contain soil and carry out the measurement of soil evaporation potentiality, occur two aspect problems easily: the one, soil water supply ability drop in the evaporation process departs from the basic demand of soil potential evaporation notion; The 2nd, the container external environment can have interference to measuring vessel, mainly is bottom and a large amount of heat conduction of outer wall in container that solar radiation and temperature cause measuring vessel, makes measurement result depart from the basic demand of soil potential evaporation notion.In view of all difficult factors, general meteorology and discharge site all do not carry out soil evaporation observation, do not carry out the observation of soil evaporation potentiality yet.
The measured soil evaporation potential can be set up the relational model of meteorologic factor, soil attribute and soil evaporation, can be used for the soil evaporation forecast, but still lacks a kind of easy device of effective measured soil evaporation potential at present.
The utility model content
For addressing the above problem, the utility model provides a kind of soil evaporation potentiality measurement mechanism, and this apparatus structure is simple, and is easy to use.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of soil evaporation potentiality measurement mechanism; It is characterized in that; Comprise outer sleeve, inner core, measurement tube, LOAD CELLS, weigh read table and the constant device of water pressure; Said outer sleeve connects the constant device of water pressure, and the bottom of said inner core is provided with LOAD CELLS, and this LOAD CELLS connects read table; Place on the said LOAD CELLS and measure tube, measure in the tube and be provided with the constant device of water pressure.
Preferably, the constant device of said water pressure comprises Ma Shi bottle, feed pipe and connecting pipe.
Preferably, feed pipe being set in the said outer sleeve is connected with the Ma Shi bottle through connecting pipe.
Preferably, said outer sleeve is the cylinder that the end is arranged, and diameter is greater than 40cm, and the bottom circumference is provided with feed pipe A.
Preferably, in the said measurement tube continuous Ma Shi bottle and feed pipe are set.
Preferably, said measurement tube is for there being round-ended cylinder, and the external diameter of measuring tube is slightly less than the internal diameter of inner core, highly slightly is shorter than inner core.
Preferably, said measurement tube bottom circumference is provided with the feed pipe B that connects the Ma Shi bottle B that guarantees that soil moisture is constant; Measure the inner splendid attire soil of tube, native face is consistent with outer sleeve soil face.
The principle of work of the utility model:
The purpose of the utility model is to measure the soil evaporation potentiality, and said soil evaporation potentiality are meant under the situation that soil fully supplies water, the evaporation capacity of soil when only receiving meteorological conditionality.Find under study for action, soil evaporation to influence the degree of depth limited, general every day not enough 5cm, under the sufficient situation that especially supplies water; Soil moisture there is not influence to soil evaporation in soil water potential absolute value＜30 kPa, can think that evaporation capacity is constant.Thus, in order to guarantee measurement result, receive the influence of external interference factor less, give to measure tube and added a urceolus protection tube, also find: when measuring that the footpath is greater than 20cm simply, extraneous interference to inner core is just less relatively; The variation of using LOAD CELLS to come substance weight in the measurement of inductance tube, poor subtracting soil evaporativeness.
The utlity model has following advantage:
(1) the measurement tube of the utility model is a bobbin that is placed on the LOAD CELLS of inner core, and its effect is splendid attire soil and Ma Shi bottle, so that the mass change of the two can be to be detected.
(2) the constant device of the water pressure of the utility model uses the Ma Shi bottle to be soil water supply.So-called Ma Shi bottle is meant and can supplies a kind of water supply bottle of constant water pressure to soil, and can regulate hydraulic pressure as required.
(3) the soil evaporation potentiality measurement mechanism that provides of the utility model is simple in structure, easy to use.Use the utility model can the soil of outer sleeve be isolated with the measurement tube; It is isolated with external condition that outer sleeve will be measured tube; Factor such as solar radiation and temperature reduces greatly the influence of measuring drum outer wall and bottom or eliminates, and therefore mainly receives or only receive evaporitic environment to measuring the influence of soil surface in the tube.With this understanding, this soil evaporativeness approaches the potential evaporation amount of this soil, can be simple record the soil evaporation potentiality under this condition.Measure soil evaporativeness, make its measured value influenced by disturbing factor as far as possible, only embody the influence of soil characteristic and evaporitic environment factor, measured value is near the soil potential evaporation amount.
Description of drawings
Accompanying drawing 1 is the structural representation of soil evaporation potentiality measurement mechanism.
Embodiment
Embodiment
Specify below in conjunction with accompanying drawing.As shown in the figure: the utility model comprises outer sleeve 1, inner core 2, measures tube 3, feed pipe A4, connecting pipe 5, Ma Shi bottle A6, LOAD CELLS 7, the read table 8 of weighing, Ma Shi bottle B9, feed pipe B10; Said outer sleeve 1 set inside inner core 2 and feed pipe A4; Said feed pipe A4 connects Ma Shi bottle A6 through connecting pipe 5; Said inner core 2 inside are provided with measures tube 3 and LOAD CELLS 7; Said measurement tube 3 is arranged on the LOAD CELLS 7, is provided with Ma Shi bottle B9 and feed pipe B10 in this measurement tube 3, and this LOAD CELLS 7 is connected with read table 8.
Said outer sleeve 1 is the cylinder that the end is arranged, and inner splendid attire soil has feed pipe 4 around the outer sleeve 1, connects through connecting pipe 5 to guarantee the constant Ma Shi bottle A6 of soil moisture; Inner core 2 is for there being round-ended cylinder, is installed in the cave of outer sleeve 1 soil hole central authorities, and the surface a little more than soil in the outer sleeve 1 suitable for reading, and closely contact with soil in the outer sleeve 1; LOAD CELLS 7 is equipped with in inner core 2 bottoms, connects the read table 8 of weighing outward; Measure tube 3 for round-ended cylinder is arranged, the external diameter of measuring tube 3 is slightly less than the internal diameter of inner core 2, highly slightly is shorter than inner core 2; Give to measure in the tube 3 and fill original-state soil; The soil face is consistent with outer sleeve 1 native face, be installed on the LOAD CELLS 7 in the inner core 2, and the suitable for reading and inner core 2 of assurance measurement tube 3 is suitable for reading consistent.Around measuring tube 3 feed pipe B10 is arranged, connect the constant Ma Shi bottle B9 of assurance soil moisture.
Add water for Ma Shi bottle A6, keep soil moisture constant.Use Ma Shi bottle A6 to give the soil water supply in the outer sleeve 1 with feed pipe A4, not limited by moisture to guarantee the soil evaporation in the outer sleeve 1 through connecting pipe 5.
Add water for Ma Shi bottle B9, keep soil moisture constant.Use Ma Shi bottle B9 to supply water, give the soil water supply of measuring in the tube 3, not limited by moisture to guarantee the soil evaporation in the outer sleeve 3 through feed pipe B10.
The mass change of sensing through read table 8 observation LOAD CELLSs 7.The difference of the quality after the fixed intervals is the soil evaporativeness of this period.
Because it is isolated with external condition that outer sleeve 1 will be measured tube 3, factors such as solar radiation and temperature reduce greatly the influence of measuring tube 3 outer walls and bottom or eliminate, and therefore mainly receive or only receive evaporitic environment to measuring the influence of soil surface in the tube 3.With this understanding, this soil evaporativeness approaches the potential evaporation amount of this soil, i.e. soil evaporation potentiality under this condition.
During use; The practical implementation step is: the feed pipe A4 of outer sleeve 1 is connected through connecting pipe 5 and a Ma Shi bottle A6; And fill original-state soil; Middle body at soil takes diameter and the degree of depth and inner core 2 diameters and the consistent soil hole of the degree of depth, inner core 2 and LOAD CELLS 7 thereof is installed on wherein, and connects good read table 8.A Ma Shi bottle B9 is installed in measuring tube 3, and connects with feed pipe B10.Measure in the tube and fill original-state soil, be placed on the LOAD CELLS 7 in the inner core 2.The Ma Shi bottle A6 that uses outer sleeve 1 to connect gives outer sleeve 1 soil water supply, regulates the head of Ma Shi bottle A6, makes it reach the water cut that does not limit soil evaporation.Use the Ma Shi bottle B9 that measures in the tube 3 to give the soil water supply of measuring in the tube 3, regulate the head of Ma Shi bottle B9, make it reach the water cut that does not limit soil evaporation.
After at interval certain period, read table 8 numerical difference between through LOAD CELLS 7 subtract and draw the poor of two inferior qualities, soil evaporativeness that promptly should the period.With this understanding, this soil evaporativeness approaches the potential evaporation amount of this soil, i.e. soil evaporation potentiality under this condition.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here can't give exhaustive to all embodiments.Conspicuous variation that every technical scheme that belongs to the utility model is extended out or change still are in the row of the protection domain of the utility model.
Claims (7)
1. soil evaporation potentiality measurement mechanism; It is characterized in that; Comprise outer sleeve, inner core, measurement tube, LOAD CELLS, weigh read table and the constant device of water pressure; Said outer sleeve connects the constant device of water pressure, and the bottom of said inner core is provided with LOAD CELLS, and this LOAD CELLS connects read table; Place on the said LOAD CELLS and measure tube, measure in the tube and be provided with the constant device of water pressure.
2. soil evaporation potentiality measurement mechanism according to claim 1 is characterized in that the constant device of said water pressure comprises Ma Shi bottle, feed pipe and connecting pipe.
3. soil evaporation potentiality measurement mechanism according to claim 2 is characterized in that, feed pipe is set in the said outer sleeve is connected with the Ma Shi bottle through connecting pipe.
4. soil evaporation potentiality measurement mechanism according to claim 3 is characterized in that said outer sleeve is the cylinder that the end is arranged, and diameter is greater than 40cm, and the bottom circumference is provided with feed pipe A.
5. soil evaporation potentiality measurement mechanism according to claim 4 is characterized in that, in the said measurement tube continuous Ma Shi bottle and feed pipe is set.
6. soil evaporation potentiality measurement mechanism according to claim 5 is characterized in that, said measurement tube is for there being round-ended cylinder, and the external diameter of measuring tube is slightly less than the internal diameter of inner core, highly slightly is shorter than inner core.
7. soil evaporation potentiality measurement mechanism according to claim 6 is characterized in that, the said tube of measuring is arranged on the LOAD CELLS in the inner core, and the last open height with inner core suitable for reading of measuring tube is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202655758U CN202159003U (en) | 2011-07-26 | 2011-07-26 | Soil evaporation potential measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202655758U CN202159003U (en) | 2011-07-26 | 2011-07-26 | Soil evaporation potential measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202159003U true CN202159003U (en) | 2012-03-07 |
Family
ID=45766635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202655758U Withdrawn - After Issue CN202159003U (en) | 2011-07-26 | 2011-07-26 | Soil evaporation potential measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202159003U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305751A (en) * | 2011-07-26 | 2012-01-04 | 北京师范大学 | Soil evaporation potential measuring method and device |
| CN103234873A (en) * | 2013-04-22 | 2013-08-07 | 北京化工大学 | Device used for researching water and slat distribution in earthen site or mural ground layer |
| CN105242025A (en) * | 2015-10-14 | 2016-01-13 | 河海大学 | Test device for vadose zone water flow movement under different buried depths |
-
2011
- 2011-07-26 CN CN2011202655758U patent/CN202159003U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305751A (en) * | 2011-07-26 | 2012-01-04 | 北京师范大学 | Soil evaporation potential measuring method and device |
| CN102305751B (en) * | 2011-07-26 | 2013-01-23 | 北京师范大学 | Soil evaporation potential measuring method and device |
| CN103234873A (en) * | 2013-04-22 | 2013-08-07 | 北京化工大学 | Device used for researching water and slat distribution in earthen site or mural ground layer |
| CN105242025A (en) * | 2015-10-14 | 2016-01-13 | 河海大学 | Test device for vadose zone water flow movement under different buried depths |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120307 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |