CN102500475B - Pulse type micro-sprinkling irrigation spray head - Google Patents
Pulse type micro-sprinkling irrigation spray head Download PDFInfo
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- CN102500475B CN102500475B CN2011103325181A CN201110332518A CN102500475B CN 102500475 B CN102500475 B CN 102500475B CN 2011103325181 A CN2011103325181 A CN 2011103325181A CN 201110332518 A CN201110332518 A CN 201110332518A CN 102500475 B CN102500475 B CN 102500475B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The invention belongs to the technical field of field irrigation and particularly relates to a pulse type micro-sprinkling irrigation spray head which comprises a casing and a piston. The piston divides an inner cavity of the casing into a water inlet cavity and a compression cavity, the water inlet cavity is connected with a micro-sprinkling irrigation water-conveying vertical pipe through a water inlet flow channel, and the piston is provided with a compression cavity moisturizing check valve and an elastic water-stopping ring. A compression spring, a tower-shaped spring, a spherical elastic valve body and a spraying hole are arranged in the compression cavity, the compression spring is sleeved outside the tower-shaped spring, one end of the compression spring abuts against the piston, the other end of the compression spring abuts against an inner wall of the casing close to the spraying hole, a large end of the tower-shaped spring is fixed on the piston, and a small end of the tower-shaped spring is fixed on the spherical elastic valve body. A curved surface of a water inlet of the spraying hole is matched with a curved surface of the spherical elastic valve body, and a refraction cone is arranged over the spraying hole. Compared with an imported pulse type micro-sprinkling irrigation system, the pulse type micro-sprinkling irrigation spray head is similarly excellent in anti-blocking performance and sprinkling evenness, simple in structure, low in input cost, suitable for China's actual conditions and easy to popularize and apply.
Description
Technical field:
The invention belongs to the field irrigation technical field, relate in particular to a kind of pulsed microspray irrigation shower nozzle.
Background technology:
Microspray irrigation is to utilize mini sprinkler to be sprayed at branches and leaves on or ground a kind of pour water form with micrometeor low pressure low-pressure water or chemical agent by pipe-line system.The difference of microspray irrigation and drip irrigation is that douche changes mini sprinkler into by water dropper, and water dropper is the residual compression that consumes hollow billet by self structure, and mini sprinkler then is to use the spray pattern consumed energy.Wetted area is bigger than drip irrigation, is conducive to eliminate moisture saturation region like this, and moisture can be absorbed at any time by soil, has improved root district aeration condition.Compare with common sprinkling irrigation, its operating pressure is low, and range is little.It is low to have energy consumption, and the water droplet hitting power is little, can improve advantages such as cutting quality by regulating field microclimate.
There is following defective in existing microspray irrigation shower nozzle: 1. easily stop up; 2. the intensity of sprinkling water (water yield) ring-type is concentrated, and approaches the precipitation intensity (water yield) at watering maximum range place far above close shower nozzle place or other place, the watering lack of homogeneity, and the problem that the more stable watering intensity of outflow (water yield) ring-type is concentrated is more obvious.
For overcoming above-mentioned defective, American I ntertec company has researched and developed successfully a brand-new water-saving irrigation equipment---pulsed microspray irrigation system the eighties in 20th century.Its outstanding advantage is to have excellent performance of anti-blockage, has solved the susceptible to plugging difficult problem of microspray irrigation system effectively, has saved expensive meticulous filtration system.The pulse irrigation method is used for microspray irrigation, water jet water spray moment, water-jet velocity by zero to maximum, reduce to zero then, jet length also changes thereupon, therefore can reach higher rainfall distribution uniformity, thereby has overcome the shortcoming that other microspray irrigation equipment precipitation (intensity) ring-type is concentrated.The pulsed microspray irrigation system of Intertec company comprises: supply water to do, arm, pulser assembly, the elasticity of pouring water hollow billet and the water jet assembly installed in the stem of every symmetrical arm.Wherein, the pulser assembly is made up of parts such as frequency controller, pulse valve, pressure-regulating valve and fast interfaces, is the control centre of system.Therefore the elasticity of pouring water hollow billet is called the elasticity hollow billet of pouring water by the manufacturing of dedicated elas-tic material.The water jet assembly is made up of shower nozzle, vertical tube, water jet, support bar etc.Major defect is: 1, complex structure, and the elasticity of pouring water hollow billet needs the manufacturing of dedicated elas-tic material, and input cost is too high, is not suitable for national conditions; 2, back water jet water spray carries out after leaning on the release of previous water jet water spray successively, and any water jet breaks down, and system is all out of service; 3, pulsed microspray irrigation system is that mode by pulser assembly sluicing decompression starts water jet water spray process, each is taken turns when starting the water jet water spray, the part of first water jet of the elasticity of respectively pouring water hollow billet pressurized water to the pulser assembly pipeline is directly released, existing energy loss has water loss again.
China was exclusively introduced this patented technology of the U.S. and had been produced this equipment by Ying Te Tyke, Tianjin slight irrigation company in 1993, but eventually because of " not acclimatized ", was not suitable for national conditions, and stopped to produce.
Summary of the invention:
The object of the present invention is to provide a kind of simple in structure, investment is little, performance of anti-blockage is excellent, the pulsed microspray irrigation shower nozzle of watering good uniformity, to make up the pulsed microspray irrigation system with independent intellectual property right that is fit to China's actual conditions.
The object of the present invention is achieved like this:
A kind of pulsed microspray irrigation shower nozzle, comprise: housing, piston, piston is divided into intake antrum and compression chamber with the inner chamber of housing, intake antrum is connected with microspray irrigation water delivery vertical tube by water inlet flow channel, piston is provided with compression chamber moisturizing check valve and elastic waterstop ring, the elastic waterstop ring is fixed in the outside of piston, be provided with the compression spring in the compression chamber, the turriform spring, the spheroidal elastic valve body, spray-hole, the compression spring is placed in outside the turriform spring, one end of compression spring is against on the piston, the other end is against on the inwall of the housing that gets close to spray-hole, the big first end of turriform spring is fixed on the piston, microcephaly's one end is fixed on the spheroidal elastic valve body, the water inlet curved surface of spray-hole and the curved surface of spheroidal elastic valve body coincide, the flow section area of area of section greater than spray-hole that block water of piston, the flow section area of spray-hole allows the flow section area greater than the maximum of compression chamber moisturizing check valve, be provided with the refraction awl directly over the spray-hole, the awl point of refraction awl is right against the center of spray-hole flow section, the refraction awl passes through adjusting rod, support is fixed on the housing, housing, water inlet flow channel, intake antrum, piston, the cone that the turriform spring constitutes, the cylinder that the compression spring constitutes, the spheroidal elastic valve body, spray-hole, the cross section of refraction awl is circle and perpendicular bisector all overlaps.
Described compression chamber moisturizing check valve, be positioned at the center in piston cross section, formed by moisturizing hole, elastic ball, mistake boom, the moisturizing hole is that big mouth is towards the truncated cone-shaped of compression chamber osculum towards intake antrum, put in it diameter greater than moisturizing hole osculum diameter the elastic ball less than the big mouthful diameter in moisturizing hole, the big mouthful of end in moisturizing hole covered boom.
Operation principle and the process of pulsed microspray irrigation shower nozzle of the present invention are as follows:
There is the irrigation water of pressure to enter into intake antrum by microspray irrigation water delivery vertical tube, water inlet flow channel, promoting piston pushes out the water in the compression chamber fast by the spray-hole of opening, form high-velocity flow, after the refraction of refraction awl, be sprayed at equably on the face of field with the form of tiny raindrop.In this process, compression chamber moisturizing check valve is closed automatically, avoids the water in the compression chamber to be back to intake antrum, and the compression spring is compressed, and the spheroidal elastic valve body moves to spray-hole, stops up spray-hole until the spheroidal elastic valve body, and spray-hole stops water spray.Because the spheroidal elastic valve body has stopped up spray-hole, pressure unloads to be put passage and is blocked, pressure in the compression chamber gos up rapidly, compressed compression spring begins to discharge, and drives piston and moves to intake antrum, and compression chamber moisturizing check valve is opened automatically, moisturizing in the compression chamber, because there is pressure reduction in the outside in the spheroidal elastic valve body, be adsorbed on the inboard of spray-hole, the turriform spring is stretched gradually.Reaching until the tensile force of turriform spring is enough to overcome the suction that the spheroidal elastic valve body is adsorbed in the spray-hole inboard, the spheroidal elastic valve body is drawn back rapidly by the inboard from spray-hole, the spray-hole that stops up is opened, water in the compression chamber sprays fast by spray-hole, pressure in the compression chamber reduces rapidly, the irrigation water of pressure is arranged by microspray irrigation water delivery vertical tube, water inlet flow channel enters into intake antrum, promoting piston pushes out the water in the compression chamber fast by the spray-hole of opening, form high-velocity flow, after refraction awl refraction, be sprayed at equably on the face of field with the form of tiny raindrop.In this process, compression chamber moisturizing check valve is closed automatically, avoids the water in the compression chamber to be back to intake antrum, and the compression spring is compressed, and the spheroidal elastic valve body moves to spray-hole, stops up spray-hole until the spheroidal elastic valve body, and spray-hole stops water spray.Because the spheroidal elastic valve body has stopped up spray-hole, pressure unloads to be put passage and is blocked, pressure in the compression chamber gos up rapidly, compressed compression spring begins to discharge, and drives piston and moves to intake antrum, and compression chamber moisturizing check valve is opened automatically, moisturizing in the compression chamber, because there is pressure reduction in the outside in the spheroidal elastic valve body, be adsorbed on the inboard of spray-hole, the turriform spring is stretched gradually.Reaching until the tensile force of turriform spring is enough to overcome the suction that the spheroidal elastic valve body is adsorbed in the spray-hole inboard, the spheroidal elastic valve body is drawn back rapidly by the inboard from spray-hole, the spray-hole that stops up is opened, water in the compression chamber sprays fast by spray-hole, pressure in the compression chamber reduces rapidly, the irrigation water of pressure is arranged by microspray irrigation water delivery vertical tube, water inlet flow channel enters into intake antrum, promoting piston pushes out the water in the compression chamber fast by the spray-hole of opening, form high-velocity flow, after refraction awl refraction, be sprayed at equably on the face of field with the form of tiny raindrop.In this process, compression chamber moisturizing check valve is closed automatically, avoids the water in the compression chamber to be back to intake antrum, and the compression spring is compressed, and the spheroidal elastic valve body moves to spray-hole, stops up spray-hole 5 until the spheroidal elastic valve body, and spray-hole stops water spray.Automatically carry out the pulse micro spray irrigation so again and again.
The present invention has following good effect:
With the pulsed microspray irrigation system of pulsed microspray irrigation shower nozzle structure of the present invention, with the pulsed microspray irrigation system of American I ntertec company invention, performance of anti-blockage and rainfall distribution uniformity with same excellence.The microspray irrigation shower nozzle of existing microspray irrigation system is changed pulsed microspray irrigation shower nozzle of the present invention, just constituted pulsed microspray irrigation system, simple than the pulsed microspray irrigation system architecture of Intertec company invention, input cost is low, thereby be more suitable for China's actual conditions, be conducive to apply.
Description of drawings:
Schematic diagram when accompanying drawing 1,2,3 is in the different operating state for pulsed microspray irrigation shower nozzle of the present invention.
The specific embodiment:
A kind of pulsed microspray irrigation shower nozzle, as accompanying drawing 1,2, shown in 3, comprise: housing 1, piston 2, piston 2 is divided into intake antrum 3 and compression chamber 4 with the inner chamber of housing 1, intake antrum 3 is connected with microspray irrigation water delivery vertical tube by water inlet flow channel 3-1, piston 2 is provided with compression chamber 4 moisturizing check valves and elastic waterstop ring 2-4, elastic waterstop ring 2-4 is fixed in the outside of piston 2, be provided with compression spring 4-1 in the compression chamber 4, turriform spring 4-2, spheroidal elastic valve body 4-3, spray-hole 5, compression spring 4-1 is placed in outside the turriform spring 4-2, the end of compression spring 4-1 is against on the piston 2, the other end is against on the inwall of the housing 1 that gets close to spray-hole 5, the big first end of turriform spring 4-2 is fixed on the piston 2, microcephaly's one end is fixed on the spheroidal elastic valve body 4-3, the curved surface of the water inlet curved surface of spray-hole 5 and spheroidal elastic valve body 4-3 coincide, the flow section area of area of section greater than spray-hole 5 that block water of piston 2, the flow section area of spray-hole 5 allows the flow section area greater than the maximum of compression chamber 4 moisturizing check valves, be provided with refraction awl 6 directly over the spray-hole 5, the awl point of refraction awl 6 is right against the center of spray-hole 5 flow sections, refraction awl 6 is by adjusting rod 7, support 8 is fixed on the housing 1, housing 1, water inlet flow channel 3-1, intake antrum 3, piston 2, the cone that turriform spring 4-2 constitutes, the cylinder that compression spring 4-1 constitutes, spheroidal elastic valve body 4-3, spray-hole 5, the cross section of refraction awl 6 is circle and perpendicular bisector all overlaps.
Described compression chamber 4 moisturizing check valves, be positioned at the center in piston 2 cross sections, formed by moisturizing hole 2-1, elastic ball 2-2, mistake boom 2-3, moisturizing hole 2-1 is that big mouth is towards the truncated cone-shaped of compression chamber 4 osculums towards intake antrum 3, put in it diameter greater than moisturizing hole 2-1 osculum diameter the elastic ball 2-2 less than the big mouthful diameter of moisturizing hole 2-1,2-1 big mouthful of end in moisturizing hole covered boom 2-3.
Operation principle and the process of pulsed microspray irrigation shower nozzle of the present invention are as follows:
As shown in Figure 1, there is the irrigation water of pressure to enter into intake antrum 3 by microspray irrigation water delivery vertical tube, water inlet flow channel 3-1, promoting piston 2 pushes out the water in the compression chamber 4 fast by the spray-hole of opening 5, form high-velocity flow, after 6 refractions of refraction awl, be sprayed at equably on the face of field with the form of tiny raindrop.In this process, compression chamber 4 moisturizing check valves are closed automatically, avoid the water in the compression chamber 4 to be back to intake antrum 3,4-1 is compressed for the compression spring, and spheroidal elastic valve body 4-3 moves to spray-hole 5, stops up spray-hole 5 until spheroidal elastic valve body 4-3, spray-hole 5 stops water spray, as shown in Figure 2.Because spheroidal elastic valve body 4-3 has stopped up spray-hole 5, pressure unloads to be put passage and is blocked, pressure in the compression chamber 4 gos up rapidly, and compressed compression spring 4-1 begins to discharge, and drives piston 2 and moves to intake antrum 3, compression chamber 4 moisturizing check valves are opened automatically, to compression chamber 4 interior moisturizings, because there is pressure reduction in the outside in the spheroidal elastic valve body 4-3, be adsorbed on the inboard of spray-hole 5, turriform spring 4-2 is stretched gradually, as shown in Figure 3.Reaching until the tensile force of turriform spring 4-2 is enough to overcome the suction that spheroidal elastic valve body 4-3 is adsorbed in spray-hole 5 inboards, spheroidal elastic valve body 4-3 is drawn back rapidly from the inboard of spray-hole 5, as shown in Figure 1, the spray-hole 5 that stops up is opened, water in the compression chamber 4 sprays fast by spray-hole 5, pressure in the compression chamber 4 reduces rapidly, the irrigation water of pressure is arranged by microspray irrigation water delivery vertical tube, water inlet flow channel 3-1 enters into intake antrum 3, promoting piston 2 pushes out the water in the compression chamber 4 fast by the spray-hole of opening 5, form high-velocity flow, after 6 refractions of refraction awl, be sprayed at equably on the face of field with the form of tiny raindrop.In this process, compression chamber 4 moisturizing check valves are closed automatically, avoid the water in the compression chamber 4 to be back to intake antrum 3,4-1 is compressed for the compression spring, and spheroidal elastic valve body 4-3 moves to spray-hole 5, stops up spray-hole 5 until spheroidal elastic valve body 4-3, spray-hole 5 stops water spray, as shown in Figure 2.Because spheroidal elastic valve body 4-3 has stopped up spray-hole 5, pressure unloads to be put passage and is blocked, pressure in the compression chamber 4 gos up rapidly, and compressed compression spring 4-1 begins to discharge, and drives piston 2 and moves to intake antrum 3, compression chamber 4 moisturizing check valves are opened automatically, to compression chamber 4 interior moisturizings, because there is pressure reduction in the outside in the spheroidal elastic valve body 4-3, be adsorbed on the inboard of spray-hole 5, turriform spring 4-2 is stretched gradually, as shown in Figure 3.Reaching until the tensile force of turriform spring 4-2 is enough to overcome the suction that spheroidal elastic valve body 4-3 is adsorbed in spray-hole 5 inboards, spheroidal elastic valve body 4-3 is drawn back rapidly from the inboard of spray-hole 5, as shown in Figure 1, the spray-hole 5 that stops up is opened, water in the compression chamber 4 sprays fast by spray-hole 5, pressure in the compression chamber 4 reduces rapidly, the irrigation water of pressure is arranged by microspray irrigation water delivery vertical tube, water inlet flow channel 3-1 enters into intake antrum 3, promoting piston 2 pushes out the water in the compression chamber 4 fast by the spray-hole of opening 5, form high-velocity flow, after 6 refractions of refraction awl, be sprayed at equably on the face of field with the form of tiny raindrop.In this process, compression chamber 4 moisturizing check valves are closed automatically, avoid the water in the compression chamber 4 to be back to intake antrum 3,4-1 is compressed for the compression spring, and spheroidal elastic valve body 4-3 moves to spray-hole 5, stops up spray-hole 5 until spheroidal elastic valve body 4-3, spray-hole 5 stops water spray, as shown in Figure 2.Automatically carry out the pulse micro spray irrigation so again and again.
Claims (2)
1. pulsed microspray irrigation shower nozzle, it is characterized in that: comprise housing (1), piston (2), piston (2) is divided into intake antrum (3) and compression chamber (4) with the inner chamber of housing (1), intake antrum (3) is connected with microspray irrigation water delivery vertical tube by water inlet flow channel (3-1), piston (2) is provided with compression chamber (4) moisturizing check valve and elastic waterstop ring (2-4), elastic waterstop ring (2-4) is fixed in the outside of piston (2), be provided with compression spring (4-1) in the compression chamber (4), turriform spring (4-2), spheroidal elastic valve body (4-3), spray-hole (5), compression spring (4-1) is placed in outside the turriform spring (4-2), one end of compression spring (4-1) is against on the piston (2), the other end is against on the inwall of the housing (1) that gets close to spray-hole (5), the big first end of turriform spring (4-2) is fixed on the piston (2), microcephaly's one end is fixed on the spheroidal elastic valve body (4-3), the curved surface of the water inlet curved surface of spray-hole (5) and spheroidal elastic valve body (4-3) coincide, the flow section area of area of section greater than spray-hole (5) that block water of piston (2), the flow section area of spray-hole (5) allows the flow section area greater than the maximum of compression chamber (4) moisturizing check valve, be provided with refraction awl (6) directly over the spray-hole (5), the awl point of refraction awl (6) is right against the center of spray-hole (5) flow section, refraction awl (6) is by adjusting rod (7), support (8) is fixed on the housing (1), housing (1), water inlet flow channel (3-1), intake antrum (3), piston (2), the cone that turriform spring (4-2) constitutes, the cylinder that compression spring (4-1) constitutes, spheroidal elastic valve body (4-3), spray-hole (5), the cross section of refraction awl (6) is circle and perpendicular bisector all overlaps.
2. a kind of pulsed microspray irrigation shower nozzle according to claim 1, it is characterized in that: described compression chamber (4) moisturizing check valve, be positioned at the center in piston (2) cross section, formed by moisturizing hole (2-1), elastic ball (2-2), mistake boom (2-3), moisturizing hole (2-1) is that big mouth is towards the truncated cone-shaped of compression chamber (4) osculum towards intake antrum (3), put in it diameter greater than moisturizing hole (2-1) osculum diameter the elastic ball (2-2) less than moisturizing hole (2-1) big mouthful of diameter, moisturizing hole (2-1) big mouthful end covered boom (2-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103325181A CN102500475B (en) | 2011-10-28 | 2011-10-28 | Pulse type micro-sprinkling irrigation spray head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103325181A CN102500475B (en) | 2011-10-28 | 2011-10-28 | Pulse type micro-sprinkling irrigation spray head |
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| Publication Number | Publication Date |
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| CN102500475A CN102500475A (en) | 2012-06-20 |
| CN102500475B true CN102500475B (en) | 2013-09-25 |
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| CN2011103325181A Expired - Fee Related CN102500475B (en) | 2011-10-28 | 2011-10-28 | Pulse type micro-sprinkling irrigation spray head |
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| US6176437B1 (en) * | 1993-10-15 | 2001-01-23 | Mona Skannerup | Blast gun for compressed air |
| CN102101074A (en) * | 2010-09-25 | 2011-06-22 | 厦门松霖科技有限公司 | Pulse rotating water outlet mechanism and pulse rotating water treatment member |
| CN202283502U (en) * | 2011-10-28 | 2012-06-27 | 中国农业科学院农田灌溉研究所 | Pulse type microspray irrigation spray nozzle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1776443C (en) * | 1990-02-22 | 1992-11-23 | А.Д. Демидов | Apparatus for pulsating water supply |
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2011
- 2011-10-28 CN CN2011103325181A patent/CN102500475B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176437B1 (en) * | 1993-10-15 | 2001-01-23 | Mona Skannerup | Blast gun for compressed air |
| CN102101074A (en) * | 2010-09-25 | 2011-06-22 | 厦门松霖科技有限公司 | Pulse rotating water outlet mechanism and pulse rotating water treatment member |
| CN202283502U (en) * | 2011-10-28 | 2012-06-27 | 中国农业科学院农田灌溉研究所 | Pulse type microspray irrigation spray nozzle |
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| CN102500475A (en) | 2012-06-20 |
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Granted publication date: 20130925 Termination date: 20191028 |