CN206709891U - A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure - Google Patents
A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure Download PDFInfo
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- CN206709891U CN206709891U CN201720504827.5U CN201720504827U CN206709891U CN 206709891 U CN206709891 U CN 206709891U CN 201720504827 U CN201720504827 U CN 201720504827U CN 206709891 U CN206709891 U CN 206709891U
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- drip irrigation
- negative pressure
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Abstract
A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure is the utility model is related to, including：Water tank, water pump, pressure gauge, flowmeter, drip irrigation zone, return water tank, it is characterised in that：The experimental rig also includes vavuum pump valve and water circulating type vacuum pump, is installed with water pump in the water tank, and the delivery port of water pump is connected to water supply line；The right-hand member port connection drip irrigation zone of the water supply line, drip irrigation zone is embedded in the soil in soil box；Water supply line on the left of water supply tube valve connects return water tank by return pipe；Water supply line on the right side of the flowmeter connects water circulating type vacuum pump by the branch pipe with vavuum pump valve.The device carries out clogging against negative pressure performance test indoors using simple equipment, shorter test period to underground drip irrigation system, is easy to people to grasp the quality of different type drip irrigation zone clogging against negative pressure performance.
Description
Technical field
A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure is the utility model is related to, belongs to agricultural irrigation skill
Art field.
Background technology
Underground drip irrigation has many good qualities, and makes it have larger popularization and application space, but still has many technical problems not have
It is resolved, constrains its development speed to a certain extent.Blockage problem such as douche turns into influences underground drip irrigation system
One of key factor of operation, one of which block mode and blocked for negative pressure.
The way of supplying water of underground drip irrigation laboratory test at present, one kind be by Markov bottle be placed on system needed for head it is identical
Height at（Generally 10m or so）, or Markov bottle is placed on crane（The patent No.：201410698692.1）, it is raised to institute
Need to meet the rated pressure needed for drip irrigation zone using difference in height after height, due to being laboratory test, the field of such condition can be met
Ground is difficult to find, and water supply installation is more complicated, and the annex of particularly crane is a lot, and cost of manufacture is also higher；Another kind side
Method be it is customized have pressure Markov bottle, provide pressure needed for drip irrigation system using air compressor machine and vacuum tank, though than the first side in operation
Method is simple, but has pressure Markov bottle to need special producer to make, it is desirable to higher.The method of testing of laboratory test drip irrigation zone flow, at present
Flow mainly is calculated by recording the reading of Markov bottle in the stipulated time, the installation of Markov bottle is placed or utilized as previously described
Lowering or hoisting gear is raised to specified altitude assignment, and in addition to inconvenience is installed, record data is also more difficult, especially with lowering or hoisting gear, passes through mesh
Survey method is difficult to read reading, and precision is also affected；Another method is by way of elevated tank and water pump joint pressurization
Supply water, measuring native bucket by weighing sensor, for weight in the hope of the flow value of water dropper, this device to test precision is high at different moments,
But complicated, civilwork engineering quantity is larger, and cost is higher.For negative pressure blocking test, have using pour water-close-pour water-
What the circulation of closing was measured, the required cycle is longer, hardly results in result of the test.Therefore, it is necessary to study a kind of operation letter
The laboratory test for the underground drip irrigation system clogging against negative pressure that list, reliable operation, precision are higher, cheap, the test period is shorter
Device.
Utility model content
The utility model devises a kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure, it is therefore intended that simplifies
The process of the detection experiment of existing water dropper clogging against negative pressure performance, reduces condition needed for testing, people is more quickly existed
Indoor development underground drip irrigation system clogging against negative pressure experiment.
A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure, including water tank, water pump, water supply line,
Water supply tube valve, pressure gauge and the flowmeter being sequentially arranged at from left to right on water supply line, in addition to drip irrigation zone, backwater water
Case, it is characterised in that：The experimental rig also includes vavuum pump valve and water circulating type vacuum pump, and water circulating type vacuum pump passes through
Water supply line on the right side of branch pipe connection flow gauge with vavuum pump valve；Water pump, and water pump are installed in the water tank
Delivery port be connected to water supply line；The right-hand member port connection drip irrigation zone of the water supply line, the end seal of the drip irrigation zone,
In soil in drip irrigation zone embedment soil box；Water supply line on the left of water supply tube valve connects return water tank by return pipe, and
Backwater tube valve is installed on return pipe.
Further, there is scale on the water tank and return water tank, the precision for check meter.During operation,
The water yield of water tank and the inflow of return water tank in the stipulated time are recorded, both differences are supply drip irrigation in the stipulated time
The total Water of band, total Water divided by water supply time are just the flow of drip irrigation zone, the reading of flowmeter are appraised and decided with the value, after checking well
The flow of drip irrigation zone can be quickly measured with flowmeter.
Said apparatus is less demanding to test site, and can completes the experiment indoors, and the device is by simple equipment
Composition, it is easy to operate, the test experiments of drip irrigation system clogging against negative pressure can be completed within the short cycle, are convenient for people to quickly obtain phase
Close experimental data.It is poor that water in two water tanks is obtained by using water tank and return water tank, and then to the essence of flowmeter
Degree is checked, and can improve the precision of test data.
Further, the water pump is a kind of low discharge, big lift miniature water pump, and range of flow is 0 ~ 1.56m3/ h, lift
Scope is 0 ~ 15m.Water pump carries current potential speed regulator, adjusts pump rotary speed by rotating speed regulator, can make water pump in different pressures
Lower work, meet the water supply needs of the system.
Further, the flow is calculated as metal pipe float flow meter, is the instrument of special test pole low discharge, and tests essence
Degree is higher, and for the range of flow that the present apparatus uses for 0 ~ 15L/h, flowmeter caliber is DN20.
Further, the water circulating type vacuum pump is the device that negative pressure is provided for water dropper delivery port, simulation underground drip irrigation system
Negative pressure caused by water dropper water outlet when system stopping is poured water, adjustable range of negative pressure is -0.09 ~ 0MPa.
The beneficial effects of the utility model are to exist to underground drip irrigation system using simple equipment, shorter test period
Indoor carry out clogging against negative pressure performance test, it is easy to people to grasp the quality of different type drip irrigation zone clogging against negative pressure performance, is
The type selecting based theoretical of drip irrigation zone.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model.
In figure, water tank 1, water pump 2, water supply line 3, backwater tube valve 4, return pipe 5, water supply tube valve 6, pressure gauge
7th, flowmeter 8, drip irrigation zone 9, soil box 10, soil 11, return water tank 12, vavuum pump valve 13, water circulating type vacuum pump 14.
Embodiment
It is better embodiment of the present utility model below, but does not therefore limit the scope of protection of the utility model.
As illustrated, a kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure, including water tank 1, water pump
2nd, water supply line 3, backwater tube valve 4, return pipe 5, water supply tube valve 6, pressure gauge 7, flowmeter 8, drip irrigation zone 9, soil box 10, soil
Earth 11, return water tank 12, vavuum pump valve 13 and water circulating type vacuum pump 14；It is characterized in that it is installed with the water tank 1
Water pump 2, and the delivery port of water pump 2 is connected to water supply line 3；Be installed with successively from left to right on the water supply line 3 valve 6,
Pressure gauge 7 and flowmeter 8, and the right-hand member port connection drip irrigation zone 9 of water supply line 3；The end seal of the drip irrigation zone 9, drip irrigation
With in the soil 11 in 9 embedment soil boxs 10；Return pipe 5 is connected on the water supply line 3 in the left side of water supply tube valve 6；Return pipe 5
End outlet be arranged in return water tank 12, and backwater tube valve 4 is installed on return pipe 5；The water circulation type vacuum
Pump 14 is arranged on the branch road of the water supply line 3 on the right side of flowmeter 8, and vavuum pump valve 13 is installed with the branch road.
There is scale on the water tank 1 and return water tank 12, for checking the precision of suspended body flowmeter 8.During operation,
The water yield of water tank 1 and the inflow of return water tank 12 in the stipulated time are recorded, both differences are to be supplied in the stipulated time
The total Water of drip irrigation zone 9, total Water divided by water supply time are just the flow of drip irrigation zone 9, and the reading of flowmeter 8 is appraised and decided with the value,
Flowmeter 8 can be used quickly to measure the flow of drip irrigation zone 9 after checking well.
The water pump 2 is a kind of low discharge, big lift miniature water pump, and range of flow is 0 ~ 1.56m3/ h, range of lift 0
~15m.Water pump 2 carries current potential speed regulator, adjusts pump rotary speed by rotating speed regulator, can make the work at various pressures of water pump 2
Make, meet the water supply needs of the system.
The flowmeter 8 is metal pipe float flow meter, is the instrument of special test pole low discharge, and measuring accuracy compared with
Height, for the range of flow that the present apparatus uses for 0 ~ 15L/h, the caliber of flowmeter 8 is DN20.
The water circulating type vacuum pump 14 is the device that negative pressure is provided for water dropper delivery port, and simulation underground drip irrigation system stops
Negative pressure caused by water dropper water outlet when pouring water, adjustable range of negative pressure are -0.09 ~ 0MPa.
Install the device, during test, open the water supply tube valve 6, Ran Houqi on backwater tube valve 4 and water supply line 3
Water pump 2 is moved, now a part of water flows to drip irrigation zone 9 from water supply line 3, and another part water flows into return water tank 12 through return pipe 5；
It can change the flow of water in water supply line 3 by adjusting backwater tube valve 4, keep constant pressure water supply, pressure gauge 7 is reached default
Value, the flow of drip irrigation zone 9 is determined by flowmeter 8；Supply water after a period of time, switch off the pump 2 and water supply tube valve 6, opens water
Circulating vavuum pump 14 and vavuum pump valve 13, when the vacuum list index on water circulating type vacuum pump 14 reaches default vacuum
When, water circulating type vacuum pump 14 is closed automatically, is stood a period of time, is just completed one cycle, so repeatedly, pass through drip irrigation zone
9 changes in flow rate reflects its negative pressure chocking-up degree（Because water source of pouring water uses running water, water quality is preferable, can exclude by water quality not
Blocking caused by good；Such tests not long-term cropping, therefore can exclude root intrusion blocking）, drip irrigation zone is dug out after off-test, is dug
Water dropper is opened to examine negative pressure stopping state.
The utility model devises a kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure, and the device utilizes letter
The equipment of list, shorter test period carry out clogging against negative pressure performance test indoors to underground drip irrigation system, are easy to people to slap
The quality of different type drip irrigation zone clogging against negative pressure performance is held, is the type selecting based theoretical of drip irrigation zone.
Claims (6)
1. a kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure, including water tank, water pump, water supply line, from
Left-to-right is sequentially arranged at water supply tube valve, pressure gauge and flowmeter on water supply line, in addition to drip irrigation zone, return water tank,
It is characterized in that：The experimental rig also includes vavuum pump valve and water circulating type vacuum pump, and water circulating type vacuum pump passes through band
There is the water supply line on the right side of the branch pipe connection flow gauge of vavuum pump valve；Water pump is installed in the water tank, and water pump
Delivery port is connected to water supply line；The right-hand member port connection drip irrigation zone of the water supply line, the end seal of the drip irrigation zone, drop
Fill with the soil in embedment soil box；Water supply line on the left of water supply tube valve connects return water tank by return pipe, and
Backwater tube valve is installed on return pipe.
A kind of 2. laboratory testing rig of underground drip irrigation system clogging against negative pressure according to claim 1, it is characterised in that：
There is scale on the water tank and return water tank.
A kind of 3. laboratory testing rig of underground drip irrigation system clogging against negative pressure according to claim 1, it is characterised in that：
The water pump is a kind of low discharge, big lift miniature water pump, and range of flow is 0 ~ 1.56m3/ h, range of lift are 0 ~ 15m.
A kind of 4. laboratory testing rig of underground drip irrigation system clogging against negative pressure according to claim 1, it is characterised in that：
The water pump carries current potential speed regulator.
A kind of 5. laboratory testing rig of underground drip irrigation system clogging against negative pressure according to claim 1, it is characterised in that：
The flow is calculated as metal pipe float flow meter, and its range of flow is 0 ~ 15L/h, and flowmeter caliber is DN20.
A kind of 6. laboratory testing rig of underground drip irrigation system clogging against negative pressure according to claim 1, it is characterised in that：
Adjustable range of negative pressure of the water circulating type vacuum pump is -0.09 ~ 0MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720504827.5U CN206709891U (en) | 2017-05-09 | 2017-05-09 | A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720504827.5U CN206709891U (en) | 2017-05-09 | 2017-05-09 | A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206709891U true CN206709891U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720504827.5U Expired - Fee Related CN206709891U (en) | 2017-05-09 | 2017-05-09 | A kind of laboratory testing rig of underground drip irrigation system clogging against negative pressure |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225438A (en) * | 2018-01-31 | 2018-06-29 | 中国水利水电科学研究院 | Flow and soil water positive pressure measurement device and test method after pipe above formula water dropper is buried |
| CN108732332A (en) * | 2018-07-18 | 2018-11-02 | 中国农业科学院农田灌溉研究所 | A kind of devices and methods therefor measuring the extension of trickle irrigation soil wetting front |
| CN109459222A (en) * | 2018-12-04 | 2019-03-12 | 大禹节水（天津）有限公司 | A kind of drip irrigation zone performance of anti-blockage detection method |
| CN114739648A (en) * | 2022-02-17 | 2022-07-12 | 中国农业大学 | Underground drip irrigation system blocking characteristic in-situ field test platform and test method |
-
2017
- 2017-05-09 CN CN201720504827.5U patent/CN206709891U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225438A (en) * | 2018-01-31 | 2018-06-29 | 中国水利水电科学研究院 | Flow and soil water positive pressure measurement device and test method after pipe above formula water dropper is buried |
| CN108225438B (en) * | 2018-01-31 | 2024-03-15 | 中国水利水电科学研究院 | Device and method for measuring flow and positive pressure of soil water after pipe-type dripper is buried |
| CN108732332A (en) * | 2018-07-18 | 2018-11-02 | 中国农业科学院农田灌溉研究所 | A kind of devices and methods therefor measuring the extension of trickle irrigation soil wetting front |
| CN109459222A (en) * | 2018-12-04 | 2019-03-12 | 大禹节水（天津）有限公司 | A kind of drip irrigation zone performance of anti-blockage detection method |
| CN114739648A (en) * | 2022-02-17 | 2022-07-12 | 中国农业大学 | Underground drip irrigation system blocking characteristic in-situ field test platform and test method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20180509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |