CN102783395A - Automatic-dredging anti-blocking low pressure drop irrigation emitter - Google Patents

Automatic-dredging anti-blocking low pressure drop irrigation emitter Download PDF

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Publication number
CN102783395A
CN102783395A CN2012103310231A CN201210331023A CN102783395A CN 102783395 A CN102783395 A CN 102783395A CN 2012103310231 A CN2012103310231 A CN 2012103310231A CN 201210331023 A CN201210331023 A CN 201210331023A CN 102783395 A CN102783395 A CN 102783395A
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CN
China
Prior art keywords
base
delivery port
barrier film
pin
dredging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012103310231A
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Chinese (zh)
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CN102783395B (en
Inventor
高任翔
高胜国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Farmland Irrigation Research Institute of CAAS
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Farmland Irrigation Research Institute of CAAS
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Priority to CN2012103310231A priority Critical patent/CN102783395B/en
Publication of CN102783395A publication Critical patent/CN102783395A/en
Application granted granted Critical
Publication of CN102783395B publication Critical patent/CN102783395B/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22Improving land use; Improving water use or availability; Controlling erosion

Abstract

The invention relates to an automatic-dredging anti-blocking low pressure drop irrigation emitter. When irrigation is performed, water pressure in a water filling chamber acts on a diaphragm compression spring and drives a dredging pin to move to the upper part; the top of the dredging pin is pulled out from the bottom of a funnel-shaped water outlet; and the irrigation water flows from the bottom of the funnel-shaped water outlet. When the irrigation is stopped or negative pressure emerges, the compressed spring is reset and drives the dredging pin to move to the lower part through the diaphragm; the top of the dredging pin is inserted into the bottom of the funnel-shaped water outlet again; and the water outlet is dredged mechanically and closed to avoid sludge suction due to negative pressure and root system invasion. The water outlet of the drop irrigation emitter is automatically and mechanically dredged by simulating manual dredging for the first time, and the blocking removal effect is excellent; the emitter can resist against negative pressure, physical, biological and chemical blocking simultaneously; and the structure is very simple, and suitable for a low-pressure drop irrigation system.

Description

From the anti-low pressure drip emitter that stops up of mediation
Technical field:
The invention belongs to the agricultural water-saving irrigation technical field, relate in particular to a kind of from the anti-low pressure drip emitter that stops up of mediation.
Background technology:
Drip irrigation is a kind of of localized irrigation, is made up of five parts such as head pivot, main, arm, hollow billet, irrigators.1. head pivot is undertaken water intaking, pressurization and water treatment task, is made up of parts such as water pump, fertilizer pot, filter, manometer, flowmeters; 2. main plays the water delivery effect; 3. arm plays the water distribution effect, presses the control area size and the water demand of crop, and irrigation water is assigned to the irrigated plot; 4. hollow billet connects with arm, and water is delivered near the crop root; 5. irrigator comprises: water dropper, delivery port etc., the type of having nothing in common with each other and shape are in order to wetting crop root soil equably.Be arranged in drip irrigation pipe and irrigator under the face of land, be referred to as underground drip irrigation.The outstanding advantage of drip irrigation is that very water-saving, particularly underground drip irrigation almost do not have evaporation of soil moisture because of irrigation water, and the utilization ratio of irrigation water is higher.The automaticity of drip irrigation is high, can make soil moisture remain at optimum state.The major defect of drip irrigation is that irrigator stops up, and particularly is difficult to change the underground drip irrigation of irrigator, and it is the main cause that causes underground drip irrigation system to be scrapped that irrigator stops up, and only have 3~5 years general service life.Secondly, be the energy consumption height of drip irrigation system.Because the high energy consumption of conventional drip irrigation system has impelled the drip irrigation system of low energy consumption to arise at the historic moment.Low energy consumption drip irrigation system or be called low-pressure drip irrigation system, be present research focus also be an important developing direction from now on.Low-pressure drip irrigation system can't adopt common anti-obstruction method because system pressure is low, and the blockage problem that solves the drip emitter under the low pressure condition has more challenge.
Summary of the invention:
The object of the present invention is to provide a kind of simple in structure, performance of anti-blockage is excellent, adapt to the anti-low pressure drip emitter that stops up of mediation certainly of low pressure water conditions.
The objective of the invention is to realize like this:
A kind of from the anti-low pressure drip emitter that stops up of mediation, comprising: base, barrier film, top cover and packing ring, a side of base is provided with connection-peg, barb is installed on the connection-peg is connected with drip irrigation pipe through microtubule; The centre of base protuberance is provided with delivery port, delivery port be infundibulate and opening up, the center of barrier film is thick, to edge attenuation gradually; Be provided with ripple near outer rim, the center is provided with the mediation pin, and the needle point of mediation pin is towards base one side; Face the center of the infundibulate delivery port of below, the top of mediation pin is cylindrical, and diameter is slightly less than the base diameter of infundibulate delivery port; The center of barrier film is equipped with spring with respect to the opposite side of mediation pin, is used for barrier film and resets, and is processed by stainless steel material; When not irrigating, the bottom that the infundibulate delivery port is inserted at the top of mediation pin, top cover is connected with base through screw thread; The spatial that barrier film surrounds base and top cover is divided into two parts up and down, and the bottom is divided into water filling cavity, and top is divided into air chamber; Packing ring is used for sealing, is processed by elastomeric material, and the geometric figure of the horizontal cross-section of base, barrier film, top cover, packing ring, delivery port, mediation pin, water filling cavity and air chamber is all circular concentric.Except that packing ring by top and the spring of elastomeric material and mediation pin with the stainless steel material, remainder can all be processed by the PE material.
During irrigation, the hydraulic pressure in the water filling cavity acts on barrier film compression spring and drives the mediation pin and moves to top, and the top of mediation pin is extracted from the bottom of infundibulate delivery port, and irrigation water flows out from the bottom of infundibulate delivery port.When stopping irrigation or negative pressure occurring; Compressed spring reset; Drive the mediation pin through barrier film and move, will dredge the bottom that the infundibulate delivery port is inserted at the top of pin again, delivery port is carried out machinery mediation and seals delivery port and avoid negative pressure suction mud and root intrusion to the bottom.
The present invention has following good effect:
Simulation is manually carried out the machinery mediation to the delivery port of drip emitter automatically, still belongs to the first time.Because the area of elastic diaphragm is very huge with respect to the area of mediation needle point; Even low-pressure drip irrigation system, the active force of machinery mediation is also very powerful, and it is same very excellent to remove the effect of stopping up; Can anti-simultaneously negative pressure, physics, biological and chemical stops up, and structure is very simple.
Description of drawings:
Accompanying drawing is from the anti-sketch map that stops up the low pressure drip emitter of mediation.
Embodiment:
A kind of from the anti-low pressure drip emitter that stops up of mediation, shown in accompanying drawing, comprising: base 1, barrier film 2, top cover 3 and packing ring 4; One side of base 1 is provided with connection-peg 1-1, barb is installed on the connection-peg 1-1 is connected with drip irrigation pipe through microtubule, and the centre protuberance of base 1 is provided with delivery port 1-2; Delivery port 1-2 be infundibulate and opening up, the center of barrier film 2 is thick, to edge attenuation gradually; Be provided with ripple 2-1 near outer rim, the center is provided with mediation pin 2-2, and the needle point of mediation pin 2-2 is towards base 1 one sides; Face the center of the infundibulate delivery port 1-2 of below, the top of mediation pin 2-2 is cylindrical, and diameter is slightly less than the base diameter of infundibulate delivery port 1-2; The center of barrier film 2 is equipped with spring 2-3 with respect to the opposite side of mediation pin 2-2, is used for barrier film 2 and resets, and is processed by stainless steel material; When not irrigating, the bottom that infundibulate delivery port 1-2 is inserted at the top of mediation pin 2-2, top cover 3 is connected with base 1 through screw thread; The spatial that barrier film 2 surrounds base 1 and top cover 3 is divided into two parts up and down, and the bottom is divided into water filling cavity 5, and top is divided into air chamber 6; Packing ring 4 is used for sealing, is processed by elastomeric material, and the geometric figure of the horizontal cross-section of base 1, barrier film 2, top cover 3, packing ring 4, delivery port 1-2, mediation pin 2-2, water filling cavity 5 and air chamber 6 is all circular concentric.Except that packing ring 4 by the top of elastomeric material and mediation pin 2-2 and spring 2-3 with the stainless steel material, remainder can all be processed by the PE material.
During irrigation, the hydraulic pressure in the water filling cavity 5 acts on barrier film 2 compression spring 2-3 and drives mediation pin 2-2 and moves to top, and the top of mediation pin 2-2 is extracted from the bottom of infundibulate delivery port 1-2, and irrigation water flows out from the bottom of infundibulate delivery port 1-2.When stopping irrigation or negative pressure occurring; Compressed spring 2-3 resets; Driving mediation pin 2-2 through barrier film 2 moves to the bottom; Again will dredge the bottom that infundibulate delivery port 1-2 is inserted at the top of pin 2-2, delivery port 1-2 will be carried out machinery mediation and sealing delivery port 1-2 avoids negative pressure suction mud and root intrusion.

Claims (1)

1. dredge the anti-low pressure drip emitter that stops up certainly for one kind, it is characterized in that: comprise base (1), barrier film (2), top cover (3) and packing ring (4), a side of base (1) is provided with connection-peg (1-1); Barb is installed on the connection-peg (1-1) is connected with drip irrigation pipe through microtubule, the centre of base (1) is swelled and is provided with delivery port (1-2), delivery port (1-2) be infundibulate and opening up; The center of barrier film (2) is thick, to edge attenuation gradually, is provided with ripple (2-1) near outer rim; The center is provided with mediation pin (2-2), and the needle point of mediation pin (2-2) faces the center of the infundibulate delivery port (1-2) of below towards base (1) one side; The top of mediation pin (2-2) is cylindrical, and diameter is slightly less than the base diameter of infundibulate delivery port (1-2), and the center of barrier film (2) is equipped with spring (2-3) with respect to the opposite side of mediation pin (2-2); Be used for barrier film (2) and reset, process by stainless steel material, when not irrigating; The bottom of infundibulate delivery port (1-2) is inserted at the top of mediation pin (2-2); Top cover (3) is connected with base (1) through screw thread, and the spatial that barrier film (2) surrounds base (1) and top cover (3) is divided into two parts up and down, and the bottom is divided into water filling cavity (5); Top is divided into air chamber (6); Packing ring (4) is used for sealing, is processed by elastomeric material, and the geometric figure of the horizontal cross-section of base (1), barrier film (2), top cover (3), packing ring (4), delivery port (1-2), mediation pin (2-2), water filling cavity (5) and air chamber (6) is all circular concentric.
CN2012103310231A 2012-09-10 2012-09-10 Automatic-dredging anti-blocking low pressure drop irrigation emitter Expired - Fee Related CN102783395B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103222411A (en) * 2013-04-26 2013-07-31 中国农业科学院农田灌溉研究所 Anti-clogging gravity type underground drip irrigation system
CN103222412A (en) * 2013-04-26 2013-07-31 中国农业科学院农田灌溉研究所 Wind-powered water-lifting anti-clogging gravity type underground drip irrigation system
CN103250615A (en) * 2013-04-26 2013-08-21 中国农业科学院农田灌溉研究所 Anti-blocking gravity-type underground drip irrigation system for photovoltaic water lifting
CN103262778A (en) * 2013-04-26 2013-08-28 中国农业科学院农田灌溉研究所 Economical anti-blocking gravity type underground drip irrigation system
CN103329779A (en) * 2013-06-08 2013-10-02 河海大学 Water-saving and blockage-resisting underground infiltrating irrigation device
CN106171843A (en) * 2016-07-07 2016-12-07 中国农业大学 A kind of blockage resisting pressure compensation douche of the uniform self-regulated of rate of discharge
CN108353760A (en) * 2018-04-05 2018-08-03 柴哲民 A kind of water conservancy irrigation device based on solar power generation
CN109877153A (en) * 2019-04-03 2019-06-14 陈泽欣 A kind of repair system for contaminated soil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113180A (en) * 1976-07-23 1978-09-12 Christy Mark H Flush-drip irrigation emitter
CN2272332Y (en) * 1996-03-20 1998-01-14 王小伦 Needle plug for gunjet
CN2643646Y (en) * 2003-08-04 2004-09-29 国家节水灌溉杨凌工程技术研究中心 Anti-clogging self-flushing drip irrigation machine
CN202741286U (en) * 2012-09-10 2013-02-20 中国农业科学院农田灌溉研究所 Self-dredging anti-blocking low-pressure drip emitter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113180A (en) * 1976-07-23 1978-09-12 Christy Mark H Flush-drip irrigation emitter
CN2272332Y (en) * 1996-03-20 1998-01-14 王小伦 Needle plug for gunjet
CN2643646Y (en) * 2003-08-04 2004-09-29 国家节水灌溉杨凌工程技术研究中心 Anti-clogging self-flushing drip irrigation machine
CN202741286U (en) * 2012-09-10 2013-02-20 中国农业科学院农田灌溉研究所 Self-dredging anti-blocking low-pressure drip emitter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103222411A (en) * 2013-04-26 2013-07-31 中国农业科学院农田灌溉研究所 Anti-clogging gravity type underground drip irrigation system
CN103222412A (en) * 2013-04-26 2013-07-31 中国农业科学院农田灌溉研究所 Wind-powered water-lifting anti-clogging gravity type underground drip irrigation system
CN103250615A (en) * 2013-04-26 2013-08-21 中国农业科学院农田灌溉研究所 Anti-blocking gravity-type underground drip irrigation system for photovoltaic water lifting
CN103262778A (en) * 2013-04-26 2013-08-28 中国农业科学院农田灌溉研究所 Economical anti-blocking gravity type underground drip irrigation system
CN103329779A (en) * 2013-06-08 2013-10-02 河海大学 Water-saving and blockage-resisting underground infiltrating irrigation device
CN103329779B (en) * 2013-06-08 2015-04-08 河海大学 Water-saving and blockage-resisting underground infiltrating irrigation device
CN106171843A (en) * 2016-07-07 2016-12-07 中国农业大学 A kind of blockage resisting pressure compensation douche of the uniform self-regulated of rate of discharge
CN106171843B (en) * 2016-07-07 2019-05-21 中国农业大学 A kind of anti-clogging pressure compensation douche of the uniform self-regulated of rate of discharge
CN108353760A (en) * 2018-04-05 2018-08-03 柴哲民 A kind of water conservancy irrigation device based on solar power generation
CN109877153A (en) * 2019-04-03 2019-06-14 陈泽欣 A kind of repair system for contaminated soil

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