CN105511508A - Lysimeter automatic water supply metering device - Google Patents
Lysimeter automatic water supply metering device Download PDFInfo
- Publication number
- CN105511508A CN105511508A CN201610001219.2A CN201610001219A CN105511508A CN 105511508 A CN105511508 A CN 105511508A CN 201610001219 A CN201610001219 A CN 201610001219A CN 105511508 A CN105511508 A CN 105511508A
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- China
- Prior art keywords
- lysimeter
- water supply
- water
- automatic water
- measuring apparatus
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a lysimeter automatic water supply metering device, comprising a water supply case, a metering container, a monitor and a lysimeter. The water supply case and the metering container are in connection through a water supply pipe; the metering container and the lysimeter are in connection through a water inlet pipe; the water inlet pipe is provided with a water inlet solenoid valve and a level sensor both in connection with the monitor. The lysimeter automatic water supply metering device can realize constant water level monitoring, automatic water supply control, metering and data acquisition, and possess the characteristics of great operationality, high degree of automation, reliable and precise collected data, relatively simple structure and lower manufacturing cost.
Description
Technical field
The present invention relates to agriculture, forestry, water conservancy engineering goods technical field, especially lysimeter automatic water supply measuring apparatus.
Background technology
Lysimeter underground moisture increment is indispensable Monitoring Data in water balanced calculation, is the important indicator that reflection plant utilizes water resource.In order to determine the impact of the recharge of ground water on growing process quantitatively, often need accurately to control lysimeter constant water level and output thereof.But, both at home and abroad about lysimeter output assay method mainly comprises weight method and measurement Law.
Weighing Lysimeter adopts weight method to carry out overall earth pillar weighing, system adopts non-equilibrium measuring principle, exchanged by lever, by the displacement variable that displacement transducer measurement " live load " causes, according to calibration formula scales weight change, thus realize the object of high-acruracy survey, but weighing system complex structure, and along with the lifting of weighing precision, its design difficulty and cost thereof also significantly improve.
Non-weighing type lysimeter adopts measurement Law to measure output, and its water measurement precision is not high, and this confluent EQUILIBRIUM CALCULATION FOR PROCESS certainly will bring certain error.Current water metering system major applications tipping bucket type udometer measuring principle is reequiped, and asks by the reversion number of times of the metering tipping bucket recording a constant volume quality calculating metrological moisture.But due to the restriction of regional environment condition, sand and dust as local in the north, haze are comparatively serious, cause waters microparticle sediment more, and the water yield of metering tipping bucket has included other material composition in water, the measuring accuracy of water certainly will be have impact on, need the dust removal by filtration of considering to carry out water quality.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, lysimeter automatic water supply measuring apparatus is proposed, this device can realize the multi-functionals such as constant water level monitoring, automatic water supply control, metering and data acquisition thereof, workable, automaticity is high, image data is reliable, precision is high, and structure is simple, and manufacturing cost is lower.
In order to realize foregoing invention object, the invention provides following technical scheme:
Lysimeter automatic water supply measuring apparatus, comprises supply tank, measuring container, watch-dog and lysimeter,
Described supply tank is connected by described feed pipe with described measuring container, and described measuring container is connected by water inlet pipe with lysimeter,
Described water inlet pipe is provided with the entering water electromagnetic valve and level sensor that are connected with described watch-dog.
Further, also comprise freeing port, described freeing port is arranged on described lysimeter constant water bit line.
Further, described watch-dog comprises microprocessor and data acquisition unit, and described microprocessor is connected with described entering water electromagnetic valve, and described data acquisition unit is connected with described level sensor.
Further, also comprise and be arranged on water supply electromagnetic valve on described feed pipe and gage probe, described water supply electromagnetic valve is connected with described microprocessor, and described gage probe is connected with described data acquisition unit.
Further, described supply tank waterline is higher than the maximum water level of described measuring container.
Further, the lowest water level line of described measuring container is higher than the constant water bit line of described lysimeter.
Further, measuring container top is provided with vent port.
Further, on described feed pipe, between described water supply electromagnetic valve and described supply tank, strainer valve is provided with.
Further, described measuring container bottom is provided with blowoff valve.
Lysimeter automatic water supply measuring apparatus of the present invention, can be realized the multi-functionals such as constant water level monitoring, automatic water supply control, metering and data acquisition thereof by this device, workable, automaticity is high, and image data is reliable, precision is high; Water supply process is simple, low cost of manufacture, and possesses multi-filtering effect, has ensured the science of the accuracy that water measures and test thereof.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of lysimeter automatic water supply measuring apparatus of the present invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
Lysimeter automatic water supply measuring apparatus as shown in Figure 1, comprises supply tank 1, measuring container 2, watch-dog 3 and lysimeter 4,
Supply tank 1 is connected by feed pipe 103 with measuring container 2, and measuring container 2 is connected by water inlet pipe 401 with lysimeter 4, arranges vent port 201 on measuring container 2 top,
Water inlet pipe 401 is provided with entering water electromagnetic valve 206 and level sensor 207 that connection 301 is connected with watch-dog 3, and the position of level sensor 207 is near lysimeter 4 and monitor water level in lysimeter 4.
The present invention also comprises freeing port 403, and freeing port 403 is arranged on the constant water bit line 402 of lysimeter 4, and the unnecessary moisture of lysimeter 4 overflows by freeing port 403, ensure that the constant of lysimeter 4 water level.
Watch-dog 3 comprises the microprocessor 302 and data acquisition unit 303 that are connected by connection 301, and microprocessor 302 is connected with entering water electromagnetic valve 206 by connection 301, and data acquisition unit 303 is connected with level sensor 207 by connection 301.
Also comprise and be arranged on water supply electromagnetic valve 204 on feed pipe 103 and gage probe 205, water supply electromagnetic valve 204 is connected with microprocessor 302 by connection 301, gage probe 205 is connected with data acquisition unit 303 by connection 301, and the position of gage probe 205 is near measuring container 2 and measure hydraulic pressure value in measuring container 2.
Supply tank waterline 101 is higher than the maximum water level 202 of measuring container 2.
The lowest water level line 203 of measuring container 2 is higher than the constant water bit line 402 of lysimeter 4.
Strainer valve 102 is provided with on feed pipe 103, between water supply electromagnetic valve 204 and supply tank 1.
Measuring container 2 bottom is provided with blowoff valve 208.
During use, data acquisition unit 303 collects the data of level sensor 207 and gage probe 205 monitoring, and microprocessor 302 visit data collector 303, controls water supply electromagnetic valve 204 and entering water electromagnetic valve 206 according to interior data.
If level sensor 207 monitor value is lower than lysimeter 4 constant water bit line 402, water supply electromagnetic valve 204 is opened, and supply tank 1 supplies water until the water surface reaches measuring container 2 maximum water level 202, and water supply electromagnetic valve 204 is closed.
Gage probe 205 measures hydraulic pressure value in measuring container 2, open entering water electromagnetic valve 206 again, in measuring container 2, moisture adds to lysimeter 4, entering water electromagnetic valve 206 is closed after measuring container 2 water level decreasing to lowest water level line 203, gage probe 205 measures hydraulic pressure value in measuring container 2 again, before and after lysimeter 4 moisturizing, in measuring container 2, differential water pressures is the variable that measuring container 2 once supplies water
After measuring container 2 once supplies water and terminates, level sensor 207 is again monitored lysimeter 4 actual water level and whether is reached constant water bit line 402, if actual water level is still lower than constant water level, then repeats water measurement, till actual water level reaches constant water level.
When metrological moisture is statically placed in supply tank 1, impurity in water is precipitable in supply tank, metering water enters measuring container 2 after the preliminary impurity screening of strainer valve 102 on feed pipe 103, measuring container 2 will carry out container moisture at every turn and leave standstill before measuring, in moisture, sediment fully can be deposited on container bottom, and is discharged by blowoff valve 208.
Show through lysimeter automatic water supply measuring apparatus test analysis, this metering system can effectively filter different densities suspension and sediment, and gage probe is reliably sensitive, error in dipping≤± 0.5%, relatively traditional tipping bucket type metering system (error≤± 4%), measuring accuracy is higher.
Lysimeter automatic water supply measuring apparatus of the present invention, can be realized the multi-functionals such as constant water level monitoring, automatic water supply control, metering and data acquisition thereof by this device, workable, automaticity is high, and image data is reliable, precision is high; Water supply process is simple, low cost of manufacture, and possesses multi-filtering effect, has ensured the science of the accuracy that water measures and test thereof.
Claims (9)
1. lysimeter automatic water supply measuring apparatus, is characterized in that, comprises supply tank, measuring container, watch-dog and lysimeter,
Described supply tank is connected by described feed pipe with described measuring container, and described measuring container is connected by water inlet pipe with lysimeter,
Described water inlet pipe is provided with the entering water electromagnetic valve and level sensor that are connected with described watch-dog.
2. lysimeter automatic water supply measuring apparatus as claimed in claim 1, it is characterized in that, also comprise freeing port, described freeing port is arranged on described lysimeter constant water bit line.
3. lysimeter automatic water supply measuring apparatus as claimed in claim 1, it is characterized in that, described watch-dog comprises microprocessor and data acquisition unit, and described microprocessor is connected with described entering water electromagnetic valve, and described data acquisition unit is connected with described level sensor.
4. lysimeter automatic water supply measuring apparatus as claimed in claim 3, it is characterized in that, also comprise and be arranged on water supply electromagnetic valve on described feed pipe and gage probe, described water supply electromagnetic valve is connected with described microprocessor, and described gage probe is connected with described data acquisition unit.
5. lysimeter automatic water supply measuring apparatus as claimed in claim 1, it is characterized in that, described supply tank waterline is higher than the maximum water level of described measuring container.
6. lysimeter automatic water supply measuring apparatus as described in as arbitrary in claim 1 to 5, is characterized in that, the lowest water level line of described measuring container is higher than the constant water bit line of described lysimeter.
7. lysimeter automatic water supply measuring apparatus as claimed in claim 1, is characterized in that, measuring container top is provided with vent port.
8. lysimeter automatic water supply measuring apparatus as claimed in claim 1, is characterized in that, on described feed pipe, between described water supply electromagnetic valve and described supply tank, be provided with strainer valve.
9. lysimeter automatic water supply measuring apparatus as claimed in claim 1, is characterized in that, described measuring container bottom is provided with blowoff valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001219.2A CN105511508A (en) | 2016-01-04 | 2016-01-04 | Lysimeter automatic water supply metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001219.2A CN105511508A (en) | 2016-01-04 | 2016-01-04 | Lysimeter automatic water supply metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105511508A true CN105511508A (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610001219.2A Pending CN105511508A (en) | 2016-01-04 | 2016-01-04 | Lysimeter automatic water supply metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105511508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325177A (en) * | 2016-10-27 | 2017-01-11 | 甘肃省治沙研究所 | Embedded monitor for constant compensation of lysimeter underground water |
| CN106919191A (en) * | 2017-03-16 | 2017-07-04 | 甘肃省治沙研究所 | A kind of lysimeter percolating water drip metering control device |
-
2016
- 2016-01-04 CN CN201610001219.2A patent/CN105511508A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325177A (en) * | 2016-10-27 | 2017-01-11 | 甘肃省治沙研究所 | Embedded monitor for constant compensation of lysimeter underground water |
| CN106919191A (en) * | 2017-03-16 | 2017-07-04 | 甘肃省治沙研究所 | A kind of lysimeter percolating water drip metering control device |
| CN106919191B (en) * | 2017-03-16 | 2023-09-29 | 甘肃省治沙研究所 | Water leakage drip metering control device of lysimeter |
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Application publication date: 20160420 |
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| RJ01 | Rejection of invention patent application after publication |