CN102550368B - Underground pressure bubbler root irrigation device - Google Patents

Underground pressure bubbler root irrigation device Download PDF

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Publication number
CN102550368B
CN102550368B CN 201110411698 CN201110411698A CN102550368B CN 102550368 B CN102550368 B CN 102550368B CN 201110411698 CN201110411698 CN 201110411698 CN 201110411698 A CN201110411698 A CN 201110411698A CN 102550368 B CN102550368 B CN 102550368B
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China
Prior art keywords
core
irrigator
underground
pressure compensation
root irrigation
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Expired - Fee Related
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CN 201110411698
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Chinese (zh)
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CN102550368A (en
Inventor
朱德兰
牛文鹏
张�林
李令媛
仇振杰
王剑
吕宏兴
戚春燕
党思思
林佳
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Northwest A&F University
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Northwest A&F University
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Priority to CN 201110411698 priority Critical patent/CN102550368B/en
Publication of CN102550368A publication Critical patent/CN102550368A/en
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Publication of CN102550368B publication Critical patent/CN102550368B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses an underground pressure-compensating bubbler root irrigation device, comprising a connection piece. An irrigation device core and an upper cover form a combined structure, the connection piece is connected with a capillary pipe through a joint, the irrigation device core is connected with the connection piece through a screw, and the connection piece is provided with a water inlet; and a maze runner in an inclined tooth shape is distributed on the irrigation device core, and filter screen grids and a pressure compensating area are arranged in the pipe. The working principle of the underground pressure-compensating bubbler root irrigation device disclosed by the invention is as follows: water flow in the capillary pipe is divided and then enter the irrigation device core through the water inlet of the connection piece, directly attacks an elastic membrane sheet in the irrigation device core, enters the maze runner through the filter screen grids to dissipate energy and then flows out through a runner outlet communicated with a lower cavity, wherein the elastic membrane sheet is deformed due to the attack function of a pressure water flow so as to press a round water outlet to change overflow area, and thus a function of pressure regulation is realized; and the water flow subjected to energy dissipation flows out of an overflow hole and then permeates into the soil.

Description

A kind of underground pressure bubbler root irrigation device
Technical field
The invention belongs to agricultural economy woods irrigation technique field, drought-hit area, particularly a kind of underground pressure compensation fountain root irrigation machine, be applicable to solve mountain region economic forest Irrigation Problems.
Background technology
Slight irrigation is as the irrigation technique of water-saving, and by the irrigation of more and more kind lands for growing field crops and economic crops is adopted, for the requirement of need water and the irrigation program of Different Crop, developing corresponding irrigator is the demand of Micro-Irrigation Development.
Satisfying certain uniformity of irrigation water appilcation is one of important indicator of slight irrigation design, no matter namely how the irrigator operating pressure changes, each strain plant should obtain almost identical irrigation quantity.Mountain region economic forest slight irrigation has three characteristics, and the one, the mountain topography gradient is large, and pressure changes greatly; The 2nd, requirement irrigator irrigation flow is large, and irrigate band (pipe) and water dropper seem that flow is less than normal when using.The 3rd, Evaporation in mountainous areas is strong, irrigator need to be embedded in underground to reduce evaporation.So common labyrinth flow-path irrigator and pressure compensating emitter can not satisfy the requirement of pouring water of mountain region economic forest, developing corresponding irrigator becomes problem demanding prompt solution.
A kind of root-irrigation method of underground artesian spring that is applicable to trees " (application number: 200810150395.8); proposed a kind of Novel irrigation mode-spring root irrigation that economic forest is irrigated that is applicable to; this irrigation method is layed in micro-irrigation equipment underground; directly water is delivered to crop root zone; greatly improved duration of service; reduced invalid evaporation, and significant yield increase effect is arranged.201010156199.9), a kind of adjustable-pressure fountain root irrigation machine (application number: 201010156210.1) and a kind of helical teeth labyrinth flow-path fountain root irrigation machine (application number: 201010208686.5) a kind of screw-type fountain root irrigation machine (application number:, the irrigator labyrinth flow-path is optimized design, hydraulic performance is good, but do not have pressure compensation, being applied to the mountain region irrigation has certain limitation.Patented invention of the present invention a kind of underground pressure compensation spring root irrigation hydrophone, labyrinth flow-path and pressure compensation principle are combined, can solve mountain region economic forest Irrigation Problems.
Summary of the invention
The terrain slope that exists in irrigating for the mountain region economic forest is large, evaporation is strong, the problems such as flow is little of pouring water, the object of the invention is to, a kind of underground pressure compensation fountain root irrigation machine is provided, this irrigator is fabricated structure, labyrinth flow-path energy dissipating and pressure compensation are integrally combined, and it is underground that hollow billet and irrigator system are embedded in, and is conducive to farming, is specially adapted to the mountain region economic forest and irrigates.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of underground pressure compensation fountain root irrigation machine, it is characterized in that, by connector, irrigator core and upper cover consist of fabricated structure, this underground pressure compensation fountain root irrigation machine is embedded in underground, directly be embedded in underground hollow billet and be connected, the order of pressing underground three is connector, irrigator core and upper cover, connector and irrigator core are threaded connection, and the irrigator core inserts the upper cover driving fit;
Described connector has screw thread up and down, and lower screw thread is external screw thread, and upper screw thread is internal thread, and the external screw thread of internal thread and irrigator core bottom coincide, and the connector bottom of thread has a groove to inner process, and the irrigator core injects in this groove; The dividing plate of an Intermediate Gray circular hole is arranged between the screw thread up and down of connector, and this circular hole is equivalent to the water inlet of irrigator, and aqueduct is arranged at dividing plate top;
Described irrigator core is a pipe with certain wall thickness, be distributed with the oblique tooth-shaped labyrinth flow-path on the tube wall of pipe, filter screen grid and pressure compensation district are arranged in pipe, the pressure compensation district is by annular cavity of resorption, the runner exit of flexible sheet, placement flexible sheet, and guiding gutter and circular delivery port consist of; The circular spout hole of two symmetries is arranged at irrigator core top;
Described lid is inboard to join with irrigator core top, and two ventilation water-guiding holes are arranged on lid, and there is a sleeve in the lid outside, and this sleeve two ends are penetrating, and sleeve diameter equals the external diameter of lid, and the irrigator core inserts in sleeve.Avoid root intrusion and negative pressure to inhale mud, reduce the generation of stopping up.
the operation principle of underground pressure compensation fountain root irrigation machine of the present invention is: enter the irrigator core by the water inlet in connector after the current shunting in hollow billet, after directly strike is positioned at the flexible sheet of irrigator core inner, enter the labyrinth flow-path energy dissipating by filter screen, flowed out by the runner exit that communicates with cavity of resorption again, flexible sheet is due to the strike effect generation deformation of pressure flow, thereby push down circular apopore, when water flow pressure hour, area of passage is large, when water flow pressure is large, area of passage reduces, after reaching certain pressure, area of passage is substantially constant, thereby reach pressure adjusting function.Upper cover and the driving fit of irrigator core, and leave flowing hole, the current of process energy dissipating are just flowed out by flowing hole and infiltrate soil.
Underground pressure compensation fountain root irrigation machine of the present invention, through experimental results show that of applicant, the pressure compensation interval is 8-24m, flow is 8L/h, and flow stance index is 0.03, and pressure compensation is functional, can well adapt to mountain topography, the assurance uniformity of pouring water, and because this irrigator flow is larger, every strain only is equipped with one and gets final product.
Underground pressure compensation fountain root irrigation machine of the present invention, fountain root irrigation machine before being different from, it not only organically combines the large runner in labyrinth and pressure compensation principle, and the irrigator core also no longer is connected with underground hollow billet by microtubule, but be connected with hollow billet by being embedded in underground connector, so just avoided the microtubule on exposure and earth's surface destroyed when farming.Adopt this pressure compensation douche, pipe-line system all can be imbedded undergroundly, only have upper cover to flush with the earth's surface, significantly improve the service life of irrigator and pipe-line system, reduce cost, and can reduce evaporation from land surface, improve water use efficiency.
Description of drawings
Fig. 1 is underground pressure of the present invention compensation spring root irrigation system schematic, in figure: 1, connector, 2, the irrigator core, 3, upper cover.
Fig. 2 is underground pressure compensation fountain root irrigation machine overall structure figure of the present invention, (a) is front view, (b) cutaway view.Mark in figure represents respectively: 4, the dividing plate of Intermediate Gray circular hole, 5, aqueduct, 6, pressure compensation district (in the dotted line frame), 7, flexible sheet, 8, the helical teeth labyrinth flow-path, 9, runner exit, 10, spout hole, 11, the ventilation water-guiding hole.
Fig. 3 is pressure compensation douche cored structure schematic diagram, (a) is front view, is (b) cutaway view, is also pressure compensation district schematic diagram.The mark of figure in (a) represents respectively: 8, helical teeth labyrinth flow-path, 15, the filter screen grid; 7, flexible sheet, 9, runner exit, 12, the annular cavity of resorption, 13, guiding gutter, 14, circular delivery port.
Fig. 4 is the pressure flow relation curve of underground pressure compensation fountain root irrigation machine of the present invention, and wherein abscissa is pressure (m), and ordinate is flow (L/h)
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment
Referring to Fig. 1, the present embodiment provides a kind of underground pressure compensation fountain root irrigation machine, can all be embedded in underground with the hollow billet system.This underground pressure compensation fountain root irrigation machine is fabricated structure, comprises connector 1, pressure compensation douche core 2 and upper cover 3, and the order of pressing underground three is connector 1, irrigator core 2, upper cover 3.Connector 1 is connected by screw with irrigator core 2, and irrigator 2 cores insert upper cover 3, both driving fits.This irrigator directly is connected with hollow billet by 20 joints, and the outside has and also comprises a matching used pp cotton-padded covering cylinder, makes from underground pressure and compensates fountain root irrigation machine sluggish flow out soil infiltration towards periphery, and avoid root system and earth to invade.
Referring to Fig. 2, Fig. 3, irrigator core 2 becomes one with connector 1, is provided with water inlet on connector 1; Irrigator core 2 is one and has certain thickness pipe, be distributed with oblique tooth-shaped labyrinth flow-path 8 on the tube wall of pipe, filter screen grid 15 and pressure compensation district 6 are arranged in pipe, pressure compensation district 6 is by flexible sheet 7, runner exit 9, filter screen 15, under annular 12, the fan-shaped chute 13 of crossing, circular delivery port 14 consists of, and the circular spout hole 10 of two symmetries is arranged at irrigator core 2 tops.Its operation principle is: enter irrigator core 2 by the water inlet in connector 1 after the current shunting in hollow billet, after directly strike is positioned at the flexible sheet 7 of irrigator core 2 inside, enter 8 energy dissipatings of helical teeth labyrinth flow-path by filter screen grid 15, flowed out by the runner exit 9 that communicates with annular cavity of resorption 12 again, flexible sheet 7 is due to the strike effect generation deformation of pressure flow, thereby push down circular apopore 14, change area of passage.When water flow pressure hour, area of passage is large, and when water flow pressure was large, area of passage reduced, and after reaching certain pressure, area of passage is substantially constant, thereby reaches pressure adjusting function.Upper cover 3 and 2 driving fits of irrigator core, and leave ventilation water-guiding hole 11, the current of process energy dissipating are just flowed out by spout hole 11 and infiltrate soil.
Connector 1 has screw thread up and down, lower screw thread is external screw thread, connect diameter and be 20 PVC joint, upper screw thread is internal thread, just coincide with the external screw thread of irrigator core 2 bottoms, and the bottom of thread of connector 1 has a groove to inner process, and irrigator core 2 just can inject in groove, prevents from leaking.
The dividing plate 4 of an Intermediate Gray circular hole is arranged between the screw thread up and down of connector 1, and Circularhole diameter is 4mm, is equivalent to the inlet opening of irrigator.Aqueduct 5 is arranged at dividing plate 4 tops, the internal diameter 6mm of aqueduct 5, and wall thickness 2mm, long 16mm can not only play water guiding action, can also play the effect of support elastic diaphragm 7.
The wall thickness of irrigator core 2 is 3.5mm, and pipe range is 58mm, and the external screw thread that joins with connector 1 is arranged at the bottom.
Oblique tooth-shaped labyrinth flow-path 8, the more general labyrinth flow-path of size is large, and total length is 200mm, and beam overall is 4.2mm, tooth depth 1.7mm, space width 4.14mm, dark 2mm, the flow stance index of this runner is 0.5018, hydraulic performance is good.
The rectangle that is shaped as 9 1.0 * 2mm of filter screen grid 15, effectively the Littoral Barrier particle, improve the irrigator anti-clogging.
Flexible sheet 7 is divided into two-layer, and gross thickness is 1.5mm, upper bed thickness 1.0mm, diameter 18mm, lower thickness 0.5mm, diameter 15mm.
The external diameter of annular cavity of resorption 12 is 18mm, internal diameter 15mm, and high 3mm just matches with flexible sheet 7.
Being shaped as of guiding gutter 9 is fan-shaped, dark 0.7mm, and angle is 40 °, after circular apopore 14 was pushed down by flexible sheet 7, current flowed out by fan-shaped guiding gutter 9.
The outlet of profile of tooth labyrinth flow-path 9 is the square of positive 2 * 2mm, communicates with oblique tooth-shaped labyrinth flow-path 8 and annular cavity of resorption 12.
Circular delivery port 14 is positioned at pipe central authorities, and diameter is 4mm.
The diameter of the circular spout hole 10 of two symmetries is 2.5mm.
Matching used pp cotton-padded covering cylinder is used for environmental sealing oblique tooth-shaped labyrinth flow-path 8, avoids it to leak.
Lid 3 is inboard to join with irrigator core 2 tops, the pp cotton-padded covering cylinder of outer side joint diameter 50mm, on two ventilation water-guiding holes are arranged, diameter is 2.5mm.
Referring to Fig. 4, the buried fountain root irrigation machine that the present embodiment is made, its performance of test on the slight irrigation test platform, experiment shows, the force compensating interval of this underground pressure compensation fountain root irrigation machine is 8-24m, flow is 8L/h, and flow stance index is 0.03, and pressure compensation is functional, can well adapt to mountain topography, the assurance uniformity of pouring water, and because the flow of this buried fountain root irrigation machine is larger, every strain only is equipped with one and gets final product.
Underground pressure compensation fountain root irrigation machine of the present invention, fountain root irrigation machine before being different from, it not only organically combines the large runner in labyrinth and pressure compensation principle, and the irrigator core also no longer is connected with underground hollow billet by microtubule, but be connected with hollow billet by being embedded in underground connector, so just avoided the microtubule on exposure and earth's surface destroyed when farming.Adopt this pressure compensation douche, pipe-line system all can be imbedded undergroundly, only have upper cover to flush with the earth's surface, significantly improve the service life of irrigator and pipe-line system, reduce cost, and can reduce evaporation from land surface, improve water use efficiency.

Claims (10)

1. a underground pressure compensates fountain root irrigation machine, it is characterized in that, by connector (1), irrigator core (2) and upper cover (3) consist of fabricated structure, this underground pressure compensation fountain root irrigation machine is embedded in underground, directly be embedded in underground hollow billet and be connected, the order of pressing underground three is connector (1), irrigator core (2) and upper cover (3), connector (1) is threaded connection with irrigator core (2), and irrigator core (2) inserts upper cover (3) driving fit;
Described connector (1) has screw thread up and down, lower screw thread is external screw thread, and upper screw thread is internal thread, and the external screw thread of internal thread and irrigator core (2) bottom coincide, and connector (1) bottom of thread has a groove to inner process, and irrigator core (2) injects in this groove; The dividing plate (4) of an Intermediate Gray circular hole is arranged between the screw thread up and down of connector (1), and this circular hole is equivalent to the water inlet of irrigator, and aqueduct (5) is arranged at dividing plate (4) top;
Described irrigator core (2) is a pipe with certain wall thickness, is distributed with oblique tooth-shaped labyrinth flow-path (8) on the outer wall of pipe;
Filter screen grid (15) and pressure compensation district (6) are arranged in pipe, and described pressure compensation district (6) supports (12), runner exit (9), guiding gutter (13) and circular delivery port (14) formation by the annular of flexible sheet (7), placement flexible sheet (7); Wherein, annular support (12) inside has die cavity; Enter the current of irrigator core (2), after directly hitting the flexible sheet (7) that is positioned at irrigator core (2) inside, enter helical teeth labyrinth flow-path (8) energy dissipating by filter screen grid (15), flow out by guiding gutter (13) and circular delivery port (14) after entering by runner exit (9) die cavity that annular supports (12) again, flexible sheet (7) is due to the strike effect generation deformation of pressure flow, thereby push down circular apopore (14), change area of passage; When water flow pressure hour, area of passage is large, when water flow pressure is large, area of passage reduces, and after reaching certain pressure, circular delivery port (14) is by flexible sheet (7) compacting, area of passage is substantially constant, and current flow out by guiding gutter (13), thereby reach pressure adjusting function;
The circular spout hole (10) of two symmetries is arranged at irrigator core (2) top;
Described upper cover (3) is inboard to join with irrigator core (2) top, two ventilation water-guiding holes (11) are arranged on upper cover (3), and there is a sleeve in upper cover (3) outside, and this sleeve two ends are penetrating, sleeve diameter equals the external diameter of upper cover (3), and irrigator core (2) inserts in sleeve.
2. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, described Circularhole diameter is 4mm; The internal diameter 6mm of described aqueduct (5), wall thickness 2mm, long 16mm.
3. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, the wall thickness of described irrigator core (2) is 3.5mm, and pipe range is 58mm.
4. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, described oblique tooth-shaped labyrinth flow-path (8) total length is 200mm, and beam overall is 4.2mm, tooth depth 1.7mm, and space width 4.14mm, dark 2mm, flow stance index is 0.5018.
5. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, described flexible sheet (7) is divided into two-layer, and gross thickness is 1.5mm, upper bed thickness 1.0mm, diameter 18mm, lower thickness 0.5mm, diameter 15mm.
6. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, described annular supports the external diameter 18mm of (12), internal diameter 15mm, and high 3mm, its inner die cavity matches with flexible sheet (7).
7. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, being shaped as of described guiding gutter (13) is fan-shaped, dark 0.7mm, angle is 40 °, and after circular delivery port (14) was by flexible sheet (7) compacting, current flowed out by guiding gutter (13).
8. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that the rectangle that is shaped as 9 1.0 * 2mm of described filter screen grid (15).
9. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, the cross section of described runner exit (9) is the square of positive 2 * 2mm, and the die cavity that supports the inside of (12) with oblique tooth-shaped labyrinth flow-path (8) and annular communicates.
10. underground pressure compensation fountain root irrigation machine as claimed in claim 1, is characterized in that, described sleeve diameter is 50mm.
CN 201110411698 2011-12-12 2011-12-12 Underground pressure bubbler root irrigation device Expired - Fee Related CN102550368B (en)

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Application Number Priority Date Filing Date Title
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CN102550368B true CN102550368B (en) 2013-06-26

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103651046B (en) * 2013-09-30 2015-04-29 西安交通大学 Anti-blocking flow channel pressure compensation watering device
CN106818409A (en) * 2017-01-09 2017-06-13 大禹节水集团股份有限公司 A kind of miniature water dropper
CN107347584B (en) * 2017-07-10 2019-12-03 中国农业大学 A kind of adjustable detachable spiral Transportation about Labyrinth Emitter of flow
CN107318593B (en) * 2017-08-22 2019-11-29 中国农业大学 Combined press force compensating douche between a kind of washable pipe

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Publication number Priority date Publication date Assignee Title
CN2403233Y (en) * 1999-12-29 2000-11-01 中国水利水电科学研究院水利研究所 Drip irrigation watering device located in the soil
CN2484738Y (en) * 2001-06-19 2002-04-10 郑耀泉 Multi-opening shunt device with pressure compensation
CN200987311Y (en) * 2006-11-28 2007-12-12 西安交通大学 Integrated antiblocking pressure compensation watering device
US7617994B2 (en) * 2007-06-07 2009-11-17 Gunderson William K Working space enclosure for underground sprinkler heads
CN101803553B (en) * 2010-04-26 2011-07-27 西北农林科技大学 Bubbler root irrigator comprising threaded labyrinth channels
CN101850309B (en) * 2010-06-25 2012-02-29 西北农林科技大学 Helical labyrinth wide-passage type water filler for filling water into fountain from bottom
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