CN103604476A - System and method for measuring water and air outflow quantities for water and air coupled drip irrigation - Google Patents
System and method for measuring water and air outflow quantities for water and air coupled drip irrigation Download PDFInfo
- Publication number
- CN103604476A CN103604476A CN201310555391.9A CN201310555391A CN103604476A CN 103604476 A CN103604476 A CN 103604476A CN 201310555391 A CN201310555391 A CN 201310555391A CN 103604476 A CN103604476 A CN 103604476A
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- water
- vertical pipe
- measuring
- drip irrigation
- sealing plug
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Links
- 230000002262 irrigation Effects 0.000 title claims abstract description 42
- 238000003973 irrigation Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 19
- 239000002689 soil Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 230000001965 increasing effect Effects 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000003621 irrigation water Substances 0.000 claims 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
- 229920005372 Plexiglas® Polymers 0.000 claims 1
- 238000004891 communication Methods 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229940059082 douche Drugs 0.000 description 9
- 241000196324 Embryophyta Species 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 229920000965 Duroplast Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
本发明公开了一种测量水气耦合滴灌水气出流量的系统与方法，系统包括测箱（1），其特点是，所述的测箱（1）为倒T型，由水平管（7）与竖直管（8）相通连接形成，竖直管（8）上端口由上密封塞（4）密封，微型压力测量计（2）通过上密封塞（4）与竖直管（8）相通，水平管（7）左右两个端口分别设左密封塞（5）和右密封塞（6）；所述的竖直管（8）的下部设排水阀（3）；该系统模拟了水气耦合滴灌的出流边界条件，通过水量平衡原理可以得到出水流量，依据气体基本定律可以计算出气流量，本发明为水气耦合滴灌的水气出流研究提供了技术支持，为提高该新型灌溉技术完善奠定了条件。
The invention discloses a system and method for measuring the outflow of water and air in drip irrigation with water-air coupling. The system includes a measuring box (1). ) is connected to the vertical pipe (8), the upper port of the vertical pipe (8) is sealed by the upper sealing plug (4), and the micro pressure gauge (2) is connected to the vertical pipe (8) through the upper sealing plug (4) Connected, the left and right sealing plugs (5) and right sealing plugs (6) are respectively provided at the left and right ports of the horizontal pipe (7); the drain valve (3) is provided at the lower part of the vertical pipe (8); the system simulates a water The outflow boundary condition of air-coupled drip irrigation can obtain the water flow through the principle of water balance, and the air flow can be calculated according to the basic law of gas. Perfect technology has laid the conditions.
Description
Technical field:
The present invention relates to agricultural irrigation technology, is a kind of System and method for of measuring aqueous vapor coupling drip irrigation aqueous vapor outflow specifically.
Background technology:
Aqueous vapor coupling drip irrigation utilizes underground drip irrigation system that aerated water or aeration liquid manure fluid-mixing are transported to plant roots district, can effectively improve water, fertilizer, gas, the thermal environment of plant rhizosphere, maintain the normal metabolism of root system and respiratory function, growing of promotion and coordination plant ground and under ground portion is a kind of water saving, economize fertile, efficient Novel irrigation technology.Aqueous vapor coupling drip irrigation has solved the temporary transient anoxic problem of root system of plant that common underground drip irrigation causes when irrigating, and possesses again all intrinsic advantages of underground drip irrigation simultaneously, for excavating plant production potentiality, provides new selection.Consider that underground drip irrigation application and area constantly expand, and in the connection of common underground drip irrigation system, venturi syringe can transform aqueous vapor coupling drip irrigation system as, thereby aqueous vapor coupling drip irrigation is practical.A large amount of researchs show, aqueous vapor coupling drip irrigation has significant yield increasing effect, and particularly more obvious for the crop effect under clay planting conditions, some crop yield amplitudes reach 30%.Existing research rests on the aspect of aqueous vapor coupling drip irrigation to crop yield, physical signs and Water Use Efficiency mostly, and relevant aqueous vapor two-phase flow goes out stream situation from underground capillary watering device; The mode that prior art can only take water, gas to measure respectively, need to measure twice, and hollow billet and douche are immersed in water while measuring, and has changed the boundary condition that aqueous vapor goes out stream, causes measurement result to occur error.
Summary of the invention:
The deficiency that the object of the invention is to overcome above-mentioned prior art exists, and a kind of system of measuring aqueous vapor coupling drip irrigation aqueous vapor outflow is provided.
Another object of the present invention is to provide a kind of method of measuring aqueous vapor coupling drip irrigation aqueous vapor outflow.
The present invention mainly solves the mode that prior art can only take water, gas to measure respectively, and hollow billet and douche is immersed in while measuring and in water, has changed the boundary condition that aqueous vapor goes out stream, causes measurement result to occur the problems such as error.
Technical scheme of the present invention is: a kind of system of measuring aqueous vapor coupling drip irrigation aqueous vapor outflow, comprise measuring tank, its special character is, described measuring tank is inverted T shape, by horizontal tube and VERTICAL TUBE, be connected and form, VERTICAL TUBE upper port is sealed by upper sealing-plug, and micro pressure meter communicates with VERTICAL TUBE by sealing-plug, and two ports in horizontal tube left and right are established respectively left sealing-plug and right sealing-plug; Draining valve is established in the bottom of described VERTICAL TUBE.
Further, described horizontal tube is consistent with the caliber of VERTICAL TUBE, and caliber is 5 ~ 10cm.
Further, the length of described horizontal tube is less than the spacing of to be measured capillary watering device water delivering orifice.
Further, described VERTICAL TUBE length is 15cm.
Further, described measuring tank is the transparent material of duroplasts or organic glass, and Material Strength should be guaranteed in observation process indeformable.
A kind of method of measuring aqueous vapor coupling drip irrigation aqueous vapor outflow system of the present invention, its special character is, comprises the following steps:
(1) drip irrigation pipe to be measured is passed to the horizontal tube of measuring tank by left sealing-plug and right sealing-plug, and in horizontal tube, only has a douche water delivering orifice, and guarantee that this douche water delivering orifice is in the centre position of horizontal tube, Open Side Down, and left sealing-plug is airtight, water-tight with the border seal that drip irrigation pipe and horizontal tube contact with right sealing-plug;
(2) pull up the sealing upper sealing-plug of VERTICAL TUBE and the micro pressure meter of upper company thereof, experiment soil used is filled in measuring tank uniformly by VERTICAL TUBE, soil filling arrives the 3cm place, draining valve top of VERTICAL TUBE;
(3) to drip irrigation pipe supply gas-vapor mix fluid, start aqueous vapor coupling drip irrigation;
(4), when the ponding of 1 ~ 3cm thickness appears in the soil surface in VERTICAL TUBE, the position of having recorded ponding face, uses sealing-plug VERTICAL TUBE is sealed, and starts timing simultaneously, calculates the now volume V (m of the gas of VERTICAL TUBE inner sealing
3);
(5) when the time reaches 30min or long-pending water surface elevation reaches 15cm, with being as the criterion of arriving first, irrigation stops, the time T (min) that record is irrigated, open draining valve and utilize measuring cup to pick out ponding until the position of ponding and overlapping while starting timing, the water yield V that record flows out
1(m
3);
(6) observe and record the reading P (Pa) of micro pressure meter, utilize following formula can calculate the amount of gas V newly increasing in VERTICAL TUBE
2(m
3): V
2=(P/P
0-1) V, P in formula
0for ambient atmosphere pressure (Pa);
(7) utilize formula Q
1=V
1/ T and Q
2=V
2/ T can calculate respectively the water flow Q of surveyed douche
1(m
3/ min) and go out airshed Q
2(m
3/ min).
Compared with the prior art a kind of System and method for of measuring aqueous vapor coupling drip irrigation aqueous vapor outflow of the present invention has outstanding substantive distinguishing features and marked improvement, measuring system and method that the present invention proposes can be measured aqueous vapor outflow simultaneously, and it is consistent with practical application that aqueous vapor goes out the boundary condition of stream, thereby there is higher efficiency and precision more accurately.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is instrumentation plan of the present invention.
Embodiment:
For Comprehension and Implementation better, below in conjunction with accompanying drawing, provide specific embodiment and describe the present invention in detail; Illustrated embodiment is only for explaining the present invention, not for limiting the scope of the invention.
Embodiment 1, referring to Fig. 1,2, adopt transparent duroplasts or organic glass to make measuring tank 1, Material Strength should guarantee that measuring tank 1 is indeformable in observation process, and measuring tank 1 can hold soil, moisture and gas, measuring tank 1 is inverted T shape, by horizontal tube 7 and VERTICAL TUBE 8, be connected and formed, horizontal tube 7 is consistent with the caliber of VERTICAL TUBE 8, and the length of horizontal tube 7 is slightly less than the spacing of the douche water delivering orifice 10 of drip irrigation pipe 9 to be measured, caliber is 5 ~ 10cm, and the length of VERTICAL TUBE 8 is 15cm left and right; In VERTICAL TUBE 8 upper port, install sealing-plug 4 sealings, micro pressure meter 2 is communicated with VERTICAL TUBE 8 by sealing-plug 4, be used for measuring the pressure of measuring tank 1 inner sealing gas, at two of 7 left and right of horizontal tube port, left sealing-plug 5 and 6 sealings of right sealing-plug are installed respectively, draining valve 3 is installed in bottom in VERTICAL TUBE 8, is used for discharging the ponding in measuring tank; Form the measurement oxygen of the present invention gas of pouring water and go out to flow the system of uniformity coefficient.
The measuring system of employing above-described embodiment 1 is measured the method for aqueous vapor coupling drip irrigation aqueous vapor outflow, comprises the following steps (with reference to Fig. 2):
(1) drip irrigation pipe to be measured is passed to the horizontal tube of measuring tank by left sealing-plug and right sealing-plug, and in horizontal tube, only has a douche water delivering orifice, and guarantee this douche water delivering orifice in the centre position of horizontal tube and Open Side Down, guarantee that left sealing-plug is airtight, water-tight with the border seal that drip irrigation pipe and horizontal tube contact with right sealing-plug;
(2) pull up the sealing upper sealing-plug of VERTICAL TUBE and the micro pressure meter of upper company thereof, experiment soil 11 used is filled in measuring tank uniformly by VERTICAL TUBE, soil 11 fillings arrive the 3cm place, draining valve top of VERTICAL TUBE;
(3) to drip irrigation pipe supply gas-vapor mix fluid, start aqueous vapor coupling drip irrigation;
(4), when certain thickness ponding appears in 11 surfaces of the soil in VERTICAL TUBE (1 ~ 3cm), the position of having recorded ponding face by VERTICAL TUBE sealing, starts timing with sealing-plug 4 simultaneously, calculates the now volume V (m of the gas of VERTICAL TUBE inner sealing
3);
(5) after the time reaches length-specific (30min) or long-pending water surface elevation to surpass certain altitude (15cm), with being as the criterion of arriving first, irrigation stops, the time T (min) that record is irrigated, open draining valve and utilize measuring cup to pick out ponding until the position of ponding and overlapping while starting timing, the water yield V that record flows out
1(m
3);
(6) observe and record the reading P (Pa) of micro pressure meter, consider that the temperature of confining gas is less in measuring process variation, it can be ignored the impact of confining gas pressure, utilizes following formula can calculate the amount of gas V newly increasing in VERTICAL TUBE
2(m
3): V
2=(P/P
0-1) V, P in formula
0for ambient atmosphere pressure (Pa);
(7) utilize formula Q
1=V
1/ T and Q
2=V
2/ T can calculate respectively the water flow Q of surveyed douche
1(m
3/ min) and go out airshed Q
2(m
3/ min).
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555391.9A CN103604476B (en) | 2013-11-11 | 2013-11-11 | A kind of System and method for measuring water-gas coupling drip irrigation aqueous vapor outflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555391.9A CN103604476B (en) | 2013-11-11 | 2013-11-11 | A kind of System and method for measuring water-gas coupling drip irrigation aqueous vapor outflow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103604476A true CN103604476A (en) | 2014-02-26 |
| CN103604476B CN103604476B (en) | 2016-02-10 |
Family
ID=50122721
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310555391.9A Expired - Fee Related CN103604476B (en) | 2013-11-11 | 2013-11-11 | A kind of System and method for measuring water-gas coupling drip irrigation aqueous vapor outflow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359517A (en) * | 2014-11-28 | 2015-02-18 | 张振华 | Calculation method of moisture coupling drip-irrigation aeration rate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696310Y (en) * | 2004-03-16 | 2005-05-04 | 康绍忠 | Irrigation system capable of alternatively drip irrigating root part of fruit tree |
| US20080233600A1 (en) * | 2004-02-06 | 2008-09-25 | Universite De Liege | Method and Kit for the Measurement of Neutrophil Cell Activation |
| CN202012689U (en) * | 2011-03-07 | 2011-10-19 | 广东联塑科技实业有限公司 | Three-way pipe fitting for drop irrigation |
| CN202066767U (en) * | 2011-03-04 | 2011-12-07 | 广东达华节水科技股份有限公司 | Soil moisture induction instrument |
| CN102323103A (en) * | 2011-08-12 | 2012-01-18 | 张振华 | Method for quantitatively diagnosing underground drip irrigation plugging degree in situ based on steady ventilation principle and system |
-
2013
- 2013-11-11 CN CN201310555391.9A patent/CN103604476B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080233600A1 (en) * | 2004-02-06 | 2008-09-25 | Universite De Liege | Method and Kit for the Measurement of Neutrophil Cell Activation |
| CN2696310Y (en) * | 2004-03-16 | 2005-05-04 | 康绍忠 | Irrigation system capable of alternatively drip irrigating root part of fruit tree |
| CN202066767U (en) * | 2011-03-04 | 2011-12-07 | 广东达华节水科技股份有限公司 | Soil moisture induction instrument |
| CN202012689U (en) * | 2011-03-07 | 2011-10-19 | 广东联塑科技实业有限公司 | Three-way pipe fitting for drop irrigation |
| CN102323103A (en) * | 2011-08-12 | 2012-01-18 | 张振华 | Method for quantitatively diagnosing underground drip irrigation plugging degree in situ based on steady ventilation principle and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359517A (en) * | 2014-11-28 | 2015-02-18 | 张振华 | Calculation method of moisture coupling drip-irrigation aeration rate |
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|---|---|
| CN103604476B (en) | 2016-02-10 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhenhua Inventor after: Li Jiusheng Inventor after: Jiang Zhongwu Inventor after: Zhang Liang Inventor after: Yu Junbao Inventor before: Zhang Zhenhua |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160104 Address after: No. 186 Hongqi Middle Road, Zhifu District, Shandong, Yantai Applicant after: Ludong University Address before: 264025 School of geography and planning, Ludong University, 186 Hongqi Road, Zhifu District, Shandong, Yantai Applicant before: Zhang Zhenhua |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20201111 |
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