CN104180859A - Portable siphon farmland irrigation flow measuring device and measuring method implemented by same - Google Patents
Portable siphon farmland irrigation flow measuring device and measuring method implemented by same Download PDFInfo
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- CN104180859A CN104180859A CN201410418712.5A CN201410418712A CN104180859A CN 104180859 A CN104180859 A CN 104180859A CN 201410418712 A CN201410418712 A CN 201410418712A CN 104180859 A CN104180859 A CN 104180859A
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Abstract
The invention discloses a portable siphon farmland irrigation flow measuring device and a measuring method implemented by the same. The flow measuring device comprises a double-layer water filter screen, a plastic flexible tube, a flow meter with a propeller and a water outlet rigid tube. The plastic flexible tube is arranged on a dyke of a farmland irrigation channel in a crossing manner, one end of the plastic flexible tube extends into a space below a water surface of the water channel, the other end of the plastic flexible tube is connected with the plastic rigid tube, and the tail end of the plastic rigid tube is communicated with a farmland; the double-layer water filter screen is arranged at the end, which extends into the water channel, of the plastic flexible tube, and a vacuum suction barrel and the flow meter with the propeller are arranged on the portion, which extends out of the water channel, of the plastic flexible tube. The measuring method includes starting the vacuum suction barrel; generating vacuum in the plastic flexible tube to form a siphon tube; generating pressure difference between internal pressure of the siphon tube and atmospheric pressure which acts on the water surface of the water channel; enabling water flow in the water channel to flow through the highest position of the siphon tube under the effect of the pressure difference and guiding the water flow to the farmland via the plastic rigid tube; enabling the water flow to flow through the flow meter with the propeller on the plastic flexible tube so as to measure the farmland irrigation flow. The portable siphon farmland irrigation flow measuring device and the measuring method have the advantages that water can be stably distributed and can be measured, the portable siphon farmland irrigation flow measuring device is simple in operation and easy to maintain, and the water can be accurately distributed.
Description
Technical field
The present invention relates to a kind of Portable siphon field irrigation flow-measuring method, belong to the ad hoc approach that the field irrigation water yield is distributed or field irrigation test water is measured.
Background technology
Farm irrigation system flow measurement is the critical facility of allocating water in farmland irrigation, and scientific consumption of water management, water rate that the degree of accuracy of flow measurement directly has influence on irrigated area collect, and even can have influence on applying of advanced irrigation technique.Along with improving constantly that farmland irrigation water scientific management requires, it is constantly universal that essence quantizes management of the use of water technology, and field irrigation hydrometry and equipment and technology will more and more have research and extension using value, also progressively be subject to people's attention.
Domestic at present, U trap engineering is widely used in hydraulic engineering, even reaches 3m as the U trap diameter of irrigated area crossing, more rare in farmland irrigation water metering.This U trap engineering of crossing canal dike, not only makes canal dike avoid destroying, and ensures boundary and the retaining of canal dike, and has reached to draw to get and irrigate the object of water in a canal in order to irrigate.Can also save the energy under certain condition.U trap application is in recent years more extensive, and U trap is commonplace for allocating water in farmland irrigation abroad, and irrigation canal has been saved traditional opening gate engineering, very economical and safety.
Summary of the invention
The object of this invention is to provide a kind of Portable siphon field irrigation flow measurement device and measuring method thereof, not only stablized water distribution but also energy water, simple to operate, the water yield is distributed accurately, is easy to safeguard.
An object of the present invention is to disclose a kind of Portable siphon field irrigation flow measurement device, be provided with Double-layer water-filtering net, plastic flexible pipe, band screw propeller flow meter, water outlet hard tube; Plastic flexible pipe is crossed on field irrigation canal canal dike, and irrigation canal underwater is stretched in plastic flexible pipe one end, and the plastic flexible pipe other end connects plastic rigid pipe, and plastic rigid pipe end passes to farmland; The plastic flexible pipe end of stretching in irrigation canal arranges Double-layer water-filtering net, stretches out on the plastic flexible pipe outside irrigation canal vacuum draw cylinder and the flowmeter with screw propeller are set, and is positioned at vacuum suction pump downstream with the flowmeter of screw propeller; Double-layer water-filtering net forms drainage barrier, and plastic flexible pipe, Vacuum suction pump form inhalant region, and flowmeter and plastic rigid pipe with screw propeller form pool.
Further, described Double-layer water-filtering net is made up of the box water strainer of double-layer plastic.
Further, described plastic flexible pipe is equal diameter pipe.
Further, between described plastic flexible pipe and plastic rigid pipe, be connected by sizing material.
Further, described Vacuum suction pump is arranged on field irrigation canal dike.
Further, in the described flowmeter passage with screw propeller, be provided with flow sensor and flow indicator.
Further, the described flowmeter with screw propeller is arranged on the plastic flexible pipe end near farmland.
Another object of the present invention is the measuring method that discloses a kind of Portable siphon field irrigation flow apparatus, comprises the following steps:
(1) arrange Portable siphon field irrigation flow measurement device: be provided with Double-layer water-filtering net, plastic flexible pipe, band screw propeller flow meter, water outlet hard tube; Plastic flexible pipe is crossed on field irrigation canal canal dike, and irrigation canal underwater is stretched in plastic flexible pipe one end, and the plastic flexible pipe other end connects plastic rigid pipe, and plastic rigid pipe end passes to farmland; The plastic flexible pipe end of stretching in irrigation canal arranges Double-layer water-filtering net, stretches out on the plastic flexible pipe outside irrigation canal vacuum draw cylinder and the flowmeter with screw propeller are set, and is positioned at vacuum suction pump downstream with the flowmeter of screw propeller; Double-layer water-filtering net forms drainage barrier, and plastic flexible pipe, Vacuum suction pump form inhalant region, and flowmeter and plastic rigid pipe with screw propeller form pool;
(2) measurement of discharge: start the vacuum draw cylinder on plastic flexible pipe, in plastic flexible pipe, form vacuum and form U trap, act between the atmospheric pressure of the irrigation canal water surface and siphon intraductal pressure and produce pressure reduction, current in irrigation canal are guided farmland into by U trap and via plastic rigid pipe under the effect of pressure reduction, thereby current record field irrigation flow through the flowmeter with screw propeller on plastic flexible pipe.
Compared with prior art, the present invention has following beneficial effect:
The first, the essential distinction of this patent and other field irrigation hydrometry is that farmland diversion has adopted U trap, avoids excavating ridge, not retrained by fixed position, is a kind of safety, economic, flow measurement mode easily;
The second, take to be equipped with in passage the screw propeller flow meter of flow sensor and flow indicator, be specially adapted to the field of farmland low discharge, low water head diversion flow measurement, volume is little, and reliability is high, assembles simpler and easy;
The 3rd, the method for calculating flux of screw propeller flow meter, formula is simple, and the flow conversion of actual measurement is convenient, is convenient to taking over of water rate, can be used to carry out irrigation water utilization factor mensuration simultaneously, evaluates water-saving irrigation effect;
The 4th, the present invention is rational in infrastructure, water flow stationary, and local head loss is less, and method is easy, overcomes the low technical barrier of farmland low water head flow measurement precision in the past, is suitable for water quantity for irrigating agricultural field and measures.
Brief description of the drawings
Fig. 1 is the current surveying device structural representation of Portable siphon field irrigation flow-measuring method of the present invention;
In figure: 1 drainage barrier, 2 inhalant regions, 3 exhalant regions, 4 Double-layer water-filtering nets, 5 plastic flexible pipes, 6 vacuum suction pumps, 7 flowmeter, the 8 water outlet hard tubes with screw propeller.
Embodiment
As shown in Figure 1, a kind of hydrocone type field irrigation flow measurement device, comprises Double-layer water-filtering net 4, plastic flexible pipe 5, band screw propeller flow meter 6, water outlet hard tube 8.
Plastic flexible pipe is crossed on field irrigation canal canal dike, and irrigation canal underwater is stretched in plastic flexible pipe one end, and the plastic flexible pipe other end connects plastic rigid pipe, and plastic rigid pipe end passes to farmland.
The plastic flexible pipe end of stretching in irrigation canal arranges Double-layer water-filtering net 4.
Stretch out vacuum draw cylinder 6 and the flowmeter 7 with screw propeller are set on the plastic flexible pipe outside irrigation canal.Be positioned at vacuum suction pump downstream with the flowmeter of screw propeller.
Double-layer water-filtering net forms drainage barrier 1, and plastic flexible pipe, Vacuum suction pump form inhalant region 2, and the flowmeter with screw propeller and plastic rigid pipe form pool 3.
Double-layer water-filtering net is made up of the box water strainer of double-layer plastic.
Plastic flexible pipe and Vacuum suction pump equal diameter.
Between plastic flexible pipe and plastic rigid pipe, be connected by sizing material.
Vacuum suction pump is arranged on irrigation canal river levee.
In flowmeter passage with screw propeller, be provided with flow sensor and flow indicator.
Be arranged on the plastic flexible pipe end near farmland with the flowmeter of screw propeller.
A measuring method for hydrocone type field irrigation flow apparatus, comprises the following steps:
(1) arrange Portable siphon field irrigation flow measurement device: be provided with Double-layer water-filtering net, plastic flexible pipe, band screw propeller flow meter, water outlet hard tube; Plastic flexible pipe is crossed on field irrigation canal canal dike, and irrigation canal underwater is stretched in plastic flexible pipe one end, and the plastic flexible pipe other end connects plastic rigid pipe, and plastic rigid pipe end passes to farmland; The plastic flexible pipe end of stretching in irrigation canal arranges Double-layer water-filtering net, stretches out on the plastic flexible pipe outside irrigation canal vacuum draw cylinder and the flowmeter with screw propeller are set, and is positioned at vacuum suction pump downstream with the flowmeter of screw propeller; Double-layer water-filtering net forms drainage barrier, and plastic flexible pipe, Vacuum suction pump form inhalant region, and flowmeter and plastic rigid pipe with screw propeller form pool;
(2) measurement of discharge: start the vacuum draw cylinder on plastic flexible pipe, in plastic flexible pipe, form vacuum and form U trap, act between the atmospheric pressure of the irrigation canal water surface and siphon intraductal pressure and produce pressure reduction, current in irrigation canal are guided farmland into by U trap and via plastic rigid pipe under the effect of pressure reduction, solid stream of water can continue to flow to farmland, thereby current record field irrigation flow through the flowmeter with screw propeller on plastic flexible pipe.
Different from other field irrigation hydrometry, the essential distinction of the present invention is that farmland diversion has adopted portable U trap, avoids excavating ridge, not retrained by fixed position, is a kind of safety, economic, flow measurement mode easily.
The present invention has taked to be equipped with in passage the screw propeller flow meter of flow sensor, is particularly suitable for the field of farmland low discharge, low water head diversion flow measurement, and volume is little, and reliability is high, assembles simple and easy.
The present invention adopts the method for calculating flux of screw propeller flow meter, and formula is simple, and the flow conversion of actual measurement is convenient, is convenient to taking over of water rate, can be used to carry out irrigation water utilization factor mensuration simultaneously, evaluates water-saving irrigation effect.
The present invention is rational in infrastructure, water flow stationary, and local head loss is less, is suitable for water quantity for irrigating agricultural field and measures.
Claims (7)
1. a Portable siphon field irrigation flow measurement device, is characterized in that, is provided with Double-layer water-filtering net, plastic flexible pipe, band screw propeller flow meter, water outlet hard tube; Plastic flexible pipe is crossed on field irrigation canal canal dike, and irrigation canal underwater is stretched in plastic flexible pipe one end, and the plastic flexible pipe other end connects plastic rigid pipe, and plastic rigid pipe end passes to farmland; The plastic flexible pipe end of stretching in irrigation canal arranges Double-layer water-filtering net, stretches out on the plastic flexible pipe outside irrigation canal vacuum draw cylinder and the flowmeter with screw propeller are set, and is positioned at vacuum suction pump downstream with the flowmeter of screw propeller; Double-layer water-filtering net forms drainage barrier, and plastic flexible pipe, Vacuum suction pump form inhalant region, and flowmeter and plastic rigid pipe with screw propeller form pool.
2. Portable siphon field irrigation flow measurement device according to claim 1, is characterized in that, described Double-layer water-filtering net is made up of the box water strainer of double-layer plastic.
3. Portable siphon field irrigation flow measurement device according to claim 1, is characterized in that, described plastic flexible pipe is equal diameter pipe.
4. Portable siphon field irrigation flow measurement device according to claim 1, is characterized in that, between described plastic flexible pipe and plastic rigid pipe, is connected by sizing material.
5. Portable siphon field irrigation flow measurement device according to claim 1, is characterized in that, described Vacuum suction pump is arranged on field irrigation canal canal dike.
6. Portable siphon field irrigation flow measurement device according to claim 1, is characterized in that, in the described flowmeter passage with screw propeller, is provided with flow sensor and flow indicator.
7. a measuring method for Portable siphon field irrigation flow measurement device, is characterized in that, comprises the following steps:
(1) arrange hydrocone type field irrigation flow measurement device: be provided with Double-layer water-filtering net, plastic flexible pipe, band screw propeller flow meter, water outlet hard tube; Plastic flexible pipe is crossed on field irrigation canal canal dike, and irrigation canal underwater is stretched in plastic flexible pipe one end, and the plastic flexible pipe other end connects plastic rigid pipe, and plastic rigid pipe end passes to farmland; The plastic flexible pipe end of stretching in irrigation canal arranges Double-layer water-filtering net, stretches out on the plastic flexible pipe outside irrigation canal vacuum draw cylinder and the flowmeter with screw propeller are set, and is positioned at vacuum suction pump downstream with the flowmeter of screw propeller; Double-layer water-filtering net forms drainage barrier, and plastic flexible pipe, Vacuum suction pump form inhalant region, and flowmeter and plastic rigid pipe with screw propeller form pool;
(2) flow measurement: start the vacuum draw cylinder on plastic flexible pipe, in plastic flexible pipe, form vacuum and form U trap, act between the atmospheric pressure of the irrigation canal water surface and siphon intraductal pressure and produce pressure reduction, current in irrigation canal are guided farmland into by U trap and via plastic rigid pipe under the effect of pressure reduction, thereby current record field irrigation flow through the flowmeter with screw propeller on plastic flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418712.5A CN104180859A (en) | 2014-08-25 | 2014-08-25 | Portable siphon farmland irrigation flow measuring device and measuring method implemented by same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418712.5A CN104180859A (en) | 2014-08-25 | 2014-08-25 | Portable siphon farmland irrigation flow measuring device and measuring method implemented by same |
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| CN104180859A true CN104180859A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410418712.5A Pending CN104180859A (en) | 2014-08-25 | 2014-08-25 | Portable siphon farmland irrigation flow measuring device and measuring method implemented by same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109496787A (en) * | 2018-10-26 | 2019-03-22 | 华北水利水电大学 | The portable irrigation rig of Novel siphon type |
| WO2020147866A1 (en) * | 2019-01-15 | 2020-07-23 | 马荣立 | Water drawing measurement and control apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2099855U (en) * | 1991-04-20 | 1992-03-25 | 陈仁麟 | Three-way siphon pump |
| CN2152387Y (en) * | 1993-04-03 | 1994-01-12 | 云南农业大学 | Multifunctional mobile water-saving siphon irrigation device |
| CN2604552Y (en) * | 2003-01-29 | 2004-02-25 | 代恒伟 | Syphon water discharging device |
| CN201568383U (en) * | 2009-11-08 | 2010-09-01 | 何相华 | Vacuum siphon pipe water conveying device |
| CN101949394A (en) * | 2010-10-08 | 2011-01-19 | 邝光明 | Vacuum pump-assisted siphon water intaking device and method |
-
2014
- 2014-08-25 CN CN201410418712.5A patent/CN104180859A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2099855U (en) * | 1991-04-20 | 1992-03-25 | 陈仁麟 | Three-way siphon pump |
| CN2152387Y (en) * | 1993-04-03 | 1994-01-12 | 云南农业大学 | Multifunctional mobile water-saving siphon irrigation device |
| CN2604552Y (en) * | 2003-01-29 | 2004-02-25 | 代恒伟 | Syphon water discharging device |
| CN201568383U (en) * | 2009-11-08 | 2010-09-01 | 何相华 | Vacuum siphon pipe water conveying device |
| CN101949394A (en) * | 2010-10-08 | 2011-01-19 | 邝光明 | Vacuum pump-assisted siphon water intaking device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109496787A (en) * | 2018-10-26 | 2019-03-22 | 华北水利水电大学 | The portable irrigation rig of Novel siphon type |
| WO2020147866A1 (en) * | 2019-01-15 | 2020-07-23 | 马荣立 | Water drawing measurement and control apparatus |
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Application publication date: 20141203 |