CN101497065A - Spray irrigation nozzle for banding sprinkle - Google Patents
Spray irrigation nozzle for banding sprinkle Download PDFInfo
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- CN101497065A CN101497065A CNA2009100739173A CN200910073917A CN101497065A CN 101497065 A CN101497065 A CN 101497065A CN A2009100739173 A CNA2009100739173 A CN A2009100739173A CN 200910073917 A CN200910073917 A CN 200910073917A CN 101497065 A CN101497065 A CN 101497065A
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- shower nozzle
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- sprinkling irrigation
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Abstract
The invention relates to a sprinkling irrigation nozzle capable of spraying in strip, which comprises a nozzle main shaft and an impeller, wherein the front side of the nozzle main shaft is provided with water spraying holes, and water sprayed out from the water spraying holes drives the impeller to rotate. The nozzle is characterized in that: the water spraying holes are radial spraying holes; and the impeller is a radial-flow type closed impeller. The sprinkling irrigation nozzle capable of spraying in strip adopts a structure combining the radial spraying holes and the radial-flow type closed impeller, so the range of sprayed water of the nozzle is in a strip shape and the spraying width can be controlled. The equipment is simple in structure and low in manufacturing cost, can spray every other row during the sprinkling irrigation of sown crops due to the strip-shaped spray, and can achieve the same irrigation effect by using a half amount of water.
Description
Technical field
The present invention relates to a kind of rainer, particularly a kind of is the sprinkling irrigation shower nozzle that is suitable for the ribbon water spray of row crop.
Background technology
Sprinkling irrigation is a kind of mechanization irrigation method, also is the high-efficient irrigation technology that the present world extensively takes, and compares with traditional broad irrigation, and the 30-50% that generally can economize on water that sprays makes crop yield 20-30%.Circular or fan-shaped spray pattern are adopted in most sprinkling irrigations in the prior art.This mode has many deficiencies; At first be that circular sprinkling irrigation is the center of circle with the shower nozzle, after sprinkling irrigation finished, surrounding soil was all moistening, and shower nozzle is difficult to move, could mobile shower nozzle after surface humidity such as having only to reduce, influenced the service efficiency of sprinkling irrigation facility greatly.Next is the height that circular shower nozzle setting of spraying must be higher than crop, otherwise the operation of can't spraying, and that sprinkler height is influenced by wind-force, wind direction when increasing is bigger, the inhomogeneities of sprinkling irrigation is increased, therefore, after some long-stalked crops grew into certain altitude, spray irrigation system was promptly ineffective, such as corn, Chinese sorghum etc., and these crops run in the watery stage can only broad irrigation when day non-irrigated.The 3rd, the circle sprinkling irrigation belongs to comprehensively irrigates, and irrigated area is big, and water requirement is big, and it is big with drift loss to evapotranspire, and has the deficiency of water resource waste.
In addition, because domestic present land consolidation degree is low, the soil distributes by the family, and stick is separated serious, and the crop of planting between adjacent peasant household on the same plot is often different, uses circular or fan-shaped sprinkling irrigation mode, is difficult to control and management when spraying operation.Influenced sprinkler irrigation technique popularization at home.
Country's " 863 " subsidy project " low energy consumption multipurpose sprinkler irrigation technique and new product " is " but the development of low pressure amplitude modulation irrigation sprinkler " (water-saving irrigation (2001AA242022), 2004 the 3rd phases, 16-17), solved removable preferably, problems such as pressure variation and ground block size, but it still uses circular shower nozzle, on spray pattern, still fail to break away from circular shower nozzle in uniformity, windage and sprinkling comprehensively, repeat the defective of aspects such as spraying, exist water consumption big, it is big with drift loss to evapotranspire, deficiencies such as water-saving result difference, this facility purchase cost and use cost are all higher, are difficult to the large-scale popularization to the smallholder.
Chinese patent 982328842 discloses " a kind of sprinkling irrigation shower nozzle ", and it adopts the shower nozzle that has guiding gutter, deflector and shaped form plate washer, makes the water moulding of ejection be square, and can satisfy the irrigation requirement on ribbon, strip crops or lawn.Its deficiency is the nozzle structure complexity, is comprehensive coverage mode still during spray irrigation, and water resource waste is serious.Chinese patent 031145280 discloses a kind of " impact driven sprinkler of non-circular spraying district ", it is equipped with cam disc on the pedestal of former impact driven sprinkler, make the water screw that is installed in nozzle the place ahead move up and down broken water by the cam rotation along with nozzle rotates, change sprinkler pattern range, do not influencing under original impact driven sprinkler maximum range condition, can spray the figure of any boundary shape in theory.Be used to eliminate impact driven sprinkler respray, leak the spray and the boundary on spray phenomenon.Can satisfy the requirement of difformity plot sprinkling irrigation.The structure of this shower nozzle is complicated more, and spray effect is relatively poor.Chinese patent 85202851 disclosed a kind of " the rotary rain shower nozzle of making of efflux-impulsed vane wheel ", a rotatable impeller is arranged on sprayer body, current are from the oblique hole for water spraying ejection of the hollow pipe shoulder of sprayer body, impact the impeller rotation current are smashed, water droplet is fallen earthward as uniform light rain.The rainer of this structure is simple in structure, low cost, and because of its hole for water spraying adopts axial inclined hole setting, impeller is the semi-open type structure, spray pattern is still rounded, and uniformity coefficient of sprinkler irrigation is also very low.Can only closely spray, can not realize the requirement that band sprays fully.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, designed a kind of banded sprinkling irrigation shower nozzle that sprays that carries out.The sprinkling irrigation shower nozzle that has solved prior art can only be realized circular the sprinkling mostly, sprays complex structure, the deficiency that cost is higher though perhaps can realize ribbon.
A kind of banded sprinkling irrigation shower nozzle that sprays that carries out of the present invention, comprise shower nozzle main shaft and impeller, hole for water spraying is arranged, come from the current drives impeller rotation of hole for water spraying at the front end of shower nozzle main shaft, it is characterized in that described hole for water spraying is spray orifice radially, described impeller is the radial-flow type closed impeller.
A kind of sprinkling irrigation shower nozzle that carries out banded sprinkling, the external diameter that it is characterized in that impeller is 95-105mm, the vane curvature radius is 38-45mm.
A kind of sprinkling irrigation shower nozzle that carries out banded sprinkling, the aperture that it is characterized in that described hole for water spraying is 2.5-3.0mm.
A kind of sprinkling irrigation shower nozzle that carries out banded sprinkling, the number of blade that it is characterized in that described impeller is the 6-8 sheet.
A kind of sprinkling irrigation shower nozzle that carries out banded sprinkling is characterized in that described operating pressure at sprinkler is 0.2-0.5Mpa, and the water flow jet elevation angle of described hole for water spraying is 18-22 °.
A kind of banded sprinkling irrigation shower nozzle that sprays that carries out of the present invention adopts radially spray orifice and the structure that the radial-flow type closed impeller cooperates, and makes shower nozzle water outlet scope be ribbon and distributes, and can control spray width.This device structure is simple, and low cost of manufacture owing to can spray by ribbon, when row crop is sprayed operation, can be sprayed in interlacing, realizes that same irrigation effect can reduce the water consumption of half.
Adopt sprinkling irrigation shower nozzle of the present invention, the operation because shower nozzle is expert at, therefore, sprinkler height can be regulated arbitrarily, is not subjected to the plant growth effect of altitude.Current all can be injected into crop root or required position.Because its spraying altitude can reduce, significantly reduced the influence of wind-force to water spray, avoid drift loss basically and sprayed unequal influence.Adopt the sprinkling irrigation equipment of shower nozzle of the present invention,, both can use rural power as operation power because operating pressure is less, more can use common tractor, the family expenses tricycle in existing rural area to use as supporting power.Both be fit to self-employed farmer's fritter field and used, also can be used as the main irrigation equipment in large tracts of land farmland.Because operating pressure is less, a power-equipment can drive a plurality of shower nozzle work simultaneously, thereby can increase substantially operating efficiency.
Description of drawings
Fig. 1 is a cartridge nozzle distribution structure schematic diagram
Fig. 2 is the left view of Fig. 1
Fig. 3 is the nozzle arrangements schematic diagram
Fig. 4 is the A-A cut-away view of Fig. 3
1-inlet opening 2-shower nozzle main shaft 3-hole for water spraying 4-impeller 5-nut among the figure
The specific embodiment
Below closing accompanying drawing elaborates to a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling of the present invention.
With reference to Fig. 1-2 a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling of the present invention a hollow shower nozzle main shaft 2 is arranged, the inside of shower nozzle main shaft is hollow structure, its front end sealing, the rear end is inlet opening 1, on the shower nozzle main shaft, be provided with radially hole for water spraying 3, be socketed with impeller 4 on the anterior position of polished rod of shower nozzle main shaft, the shower nozzle spindle nose has nut 5 that impeller 4 is limited to position of polished rod.Impeller 4 is the radial-flow type closed impeller, and 6-8 blade arranged on it, and the radius of curvature of blade is selected arbitrarily between 38-45mm.The external diameter of impeller is chosen between the 95-105mm.
Fig. 3-the 4th, a kind of nozzle segment structural representation that carries out the banded sprinkling irrigation shower nozzle that sprays of the present invention.Described nozzle has two radially hole for water sprayings 3 at the front end of shower nozzle main shaft, and the diameter of hole for water spraying is between 2.5-3.0mm, and its jet angle of sprinkler flow e is 18-22 °.
During work, water enters the cavity of shower nozzle main shaft 2 inside by inlet opening 1, and then from hole for water spraying 3 ejections, through the outlet ejection of impeller 4, water impact makes impeller 4 rotation at a high speed simultaneously.Because impeller 4 is runoff, enclosed construction, therefore, the current that sprayed by hole for water spraying 3 promptly spray out with oriented approach behind impeller outlet.Water pressure in the cavity of shower nozzle main shaft 2 should remain on 0.2-0.5Mpa.To guarantee that current keep constant to the impulsive force of blade, make impeller keep rotation at a high speed.The effect of blade is that current are smashed, and makes it with water droplet or vaporific ground or plant root or the plant leaf surface of spraying to.
It below is field of the present invention measured test record.
The banded irrigation sprinkler shower nozzle combination of hydro powered sprinkling irrigation index field test experimental condition: sprinkling irrigation time 10min, mean wind speed 1.5～2.0m/s, the pressure 0.25MPa of shower nozzle place, 21 ° of jet angle of sprinkler flow, impeller outer diameter 100mm, vane curvature radius 41mm, 43 ° of blade tilts, shower nozzle setting height(from bottom) 0.4m, the shower nozzle water spraying direction is parallel with prevailing wind direction, impeller turns to unanimity, guarantees that the main tributary injection direction does not change in process of the test.
The banded irrigation sprinkler sprinkling irrigation of hydro powered index field test result of the test shows: the single shower nozzle of Φ 2.5mm is side effective range 8m with the wind, maximum range 9.5m, contrary wind side effective range 6m, maximum range 7.5m, single shower nozzle be the average application rate of sprinkler irrigation 24.36mm/h of side with the wind, against the wind the average application rate of sprinkler irrigation 29.52mm/h of side, number diameter 1.84mm in the water droplet, the formulation irrigating water quota is 20mm, and average application rate of sprinkler irrigation meets the permission application rate of sprinkler irrigation 20～30mm of loam, and the sprinkling irrigation performance indications all meet standard.The single shower nozzle of Φ 2.8mm is side effective range 8.5m with the wind, maximum range 10m, and contrary wind side effective range 6.5m, maximum range 8m, single shower nozzle be the average application rate of sprinkler irrigation 40.73mm/h of side with the wind, against the wind the average application rate of sprinkler irrigation 48.72mm/h of side.The number diameter is 1.9mm in the water droplet, and the formulation irrigating water quota is 15mm, and average application rate of sprinkler irrigation meets the permission application rate of sprinkler irrigation 40～50mm of loam, and the sprinkling irrigation performance indications all meet standard.
Because single shower nozzle some local water spray when spraying is not enough, successively spray orifice Φ 2.5mm and Φ 2.8mm has been carried out composite test when mean wind speed is 1.5～2.0m/s.The data that test is gathered are added up, analyzed, its combination range is respectively 14m and 15m, the average application rate of sprinkler irrigation of combination its shower nozzle of back is respectively 27.83mm/h and 48.26mm/h, water yield figure shows that its uniformity further improves, uniformity coefficient is respectively 75.9% and 76.2%, it hits intensity and reflects that by number diameter in the water droplet number diameter is respectively 1.82mm and 1.89mm in the water droplet of combination back, sprays index and all meets the requirements.
Result of the test shows that the banded irrigation sprinkler shower nozzle combination of hydro powered back sprinkling irrigation performance is improved, and can satisfy the sprinkling irrigation requirement in the actual production, is adapted at that force 3 wind is following to be used, and can make full use of effective water resource and spray.
Sprinkling irrigation time 10min, mean wind speed 1.5～2.0m/s, impeller outer diameter 105mm, vane curvature radius 43mm, shower nozzle place hydraulic pressure is 0.5MPa, jet angle of sprinkler flow is 22 °, 43 ° of blade tilts, shower nozzle setting height(from bottom) 0.5m, the shower nozzle water spraying direction is parallel with prevailing wind direction, impeller turns to unanimity, guarantees that the main tributary injection direction is constant in process of the test.Hole for water spraying diameter 3.0mm, 7 of the numbers of blade.Test every irrigation index and meet standard.
Sprinkling irrigation time 12min, mean wind speed 1.7～2.0m/s, shower nozzle water pressure 0.2MPa, impeller outer diameter 95mm, vane curvature radius 38mm, 18 ° of jet angle of sprinkler flow, 43 ° of blade tilts, shower nozzle setting height(from bottom) 0.3m, the shower nozzle water spraying direction is parallel with prevailing wind direction, impeller turns to unanimity, guarantees that the main tributary injection direction is constant in process of the test.Hole for water spraying diameter 2.5mm, 6 of the numbers of blade.Test every irrigation index and meet standard.
Embodiment 4
Sprinkling irrigation time 15min, mean wind speed 2.0m/s, impeller outer diameter 103mm, vane curvature radius 40mm, shower nozzle water pressure 0.35MPa, 22 ° of jet angle of sprinkler flow, 43 ° of blade tilts, shower nozzle setting height(from bottom) 0.4m, the shower nozzle water spraying direction is parallel with prevailing wind direction, impeller turns to unanimity, guarantees that the main tributary injection direction is constant in process of the test.Hole for water spraying diameter 2.7mm, 7 of the numbers of blade.Test every irrigation index and meet standard.
Claims (5)
1, a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling, comprise shower nozzle main shaft (2) and impeller (4), front end at the shower nozzle main shaft has hole for water spraying (3), come from current drives impeller (4) rotation of hole for water spraying (3), it is characterized in that described hole for water spraying (3) is spray orifice radially, described impeller (4) is the radial-flow type closed impeller.
2, according to a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling of claim 1, the external diameter that it is characterized in that impeller (4) is 95-105mm, and the vane curvature radius is 38-45mm.
3, according to a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling of claim 1 or 2, the aperture that it is characterized in that described hole for water spraying (3) is 2.5-3.0mm.
4, according to a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling of claim 2, the number of blade that it is characterized in that described impeller (4) is the 6-8 sheet.
5, according to a kind of sprinkling irrigation shower nozzle that carries out banded sprinkling of claim 3, it is characterized in that described operating pressure at sprinkler is 0.2-0.5Mpa, the water flow jet elevation angle of described hole for water spraying (3) is 18-22 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100739173A CN101497065A (en) | 2009-03-10 | 2009-03-10 | Spray irrigation nozzle for banding sprinkle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100739173A CN101497065A (en) | 2009-03-10 | 2009-03-10 | Spray irrigation nozzle for banding sprinkle |
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| Publication Number | Publication Date |
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| CN101497065A true CN101497065A (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100739173A Pending CN101497065A (en) | 2009-03-10 | 2009-03-10 | Spray irrigation nozzle for banding sprinkle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525405A (en) * | 2014-12-30 | 2015-04-22 | 山西省农业科学院棉花研究所 | Double-hole same-direction double-impeller waterpower beating spraying head |
| WO2023197795A1 (en) * | 2022-12-28 | 2023-10-19 | 南京农业大学 | Method for designing three-dimensional uniquely-shaped jet nozzle for field of water-saving farmland irrigation |
-
2009
- 2009-03-10 CN CNA2009100739173A patent/CN101497065A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525405A (en) * | 2014-12-30 | 2015-04-22 | 山西省农业科学院棉花研究所 | Double-hole same-direction double-impeller waterpower beating spraying head |
| WO2023197795A1 (en) * | 2022-12-28 | 2023-10-19 | 南京农业大学 | Method for designing three-dimensional uniquely-shaped jet nozzle for field of water-saving farmland irrigation |
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Open date: 20090805 |