CN206866199U - External mounting type cylindrical drip irrigation tube and agricultural greenhouse system - Google Patents

External mounting type cylindrical drip irrigation tube and agricultural greenhouse system Download PDF

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Publication number
CN206866199U
CN206866199U CN201720615860.5U CN201720615860U CN206866199U CN 206866199 U CN206866199 U CN 206866199U CN 201720615860 U CN201720615860 U CN 201720615860U CN 206866199 U CN206866199 U CN 206866199U
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CN
China
Prior art keywords
round platform
drip irrigation
osculum
mounting type
external mounting
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.)
Expired - Fee Related
Application number
CN201720615860.5U
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Chinese (zh)
Inventor
纪晶
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Qingdao Agricultural University
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Qingdao Agricultural University
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Priority to CN201720615860.5U priority Critical patent/CN206866199U/en
Application granted granted Critical
Publication of CN206866199U publication Critical patent/CN206866199U/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
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

Abstract

The utility model discloses a kind of external mounting type cylindrical drip irrigation tube and agricultural greenhouse system.External mounting type cylindrical drip irrigation tube includes water pipe, multiple delivery ports are offered on the water pipe, also include multiple column drippers, formed with helical groove on the inner tubal wall of the column dripper, osculum is offered on the outer wall of the column dripper, the osculum connects with the helical groove, and the column dripper is enclosed on the outside of the water pipe, helical buffer passage is formed between the outer tube wall of the helical groove and the water pipe, the delivery port connects with the helical buffer passage.Realize the use reliability for improving external mounting type cylindrical drip irrigation tube.

Description

External mounting type cylindrical drip irrigation tube and agricultural greenhouse system
Technical field
The utility model is related to agricultural greenhouse system irrigation technique field, more particularly to a kind of external mounting type cylindrical drip irrigation tube and Agricultural greenhouse system.
Background technology
At present, agricultural greenhouse system planting technology is widely promoted, and agricultural greenhouse system coordinates drip irrigation technique to turn into mesh The trend of preceding green agricultural development.Drip irrigation pipe is typically laid on the earth's surface of greenhouse, and drip irrigation pipe generally includes water pipe and water dropper, Water dropper is arranged on the inner tubal wall of water pipe, forms turbulent flow passageway between water dropper and water pipe, the water in water pipe by turbulent flow passageway from The delivery port discharge of water pipe.But in actual use, because drip irrigation pipe contacts ground, silt is easily accessible water outlet In mouthful, and the turbulent flow passageway of water dropper is because size is small and more roundabout, turning, dead angle be present, easily, it is easy to by from delivery port The silt entered blocks and causes the water dropper to fail, and the crops of corresponding section can not obtain the water supply of abundance and influence to give birth to It is long, cause the use reliability of drip irrigation pipe relatively low.How to design a kind of high drip irrigation pipe of use reliability is the utility model institute Technical problems to be solved.
Utility model content
Technical problem to be solved in the utility model is:A kind of external mounting type cylindrical drip irrigation tube and agricultural greenhouse system are provided System, realize the use reliability for improving external mounting type cylindrical drip irrigation tube.
Technical scheme provided by the utility model is:A kind of external mounting type cylindrical drip irrigation tube, including water pipe, open on the water pipe Provided with multiple delivery ports, it is characterised in that also including multiple column drippers, formed with spiral on the inner tubal wall of the column dripper Shape groove, osculum is offered on the outer wall of the column dripper, the osculum connects with the helical groove, the circle Post water dropper is enclosed on the outside of the water pipe, and helical buffer is formed between the helical groove and the outer tube wall of the water pipe and is led to Road, the delivery port connect with the helical buffer passage.
Further, the aperture of the osculum is gradually reduced from inside to outside.
Further, automatic control flow controller is additionally provided with the osculum, the automatic control flow controller includes the first trapezoidal circle The side wall of platform, connecting rod, spring and the second trapezoidal round platform, the first trapezoidal round platform and the second trapezoidal round platform is provided with A plurality of current groove, the size of the first trapezoidal round platform are less than the size of second bucking ladder, and the connecting rod is fixed on On the first trapezoidal round platform, the second trapezoidal round platform is slidably disposed in the connecting rod, and the spring is arranged on Between the first trapezoidal round platform and the second trapezoidal round platform;The first trapezoidal round platform is stuck in the osculum, described The current groove on first trapezoidal round platform and form exhalant canal between the hole wall of the osculum.
Further, the cross sectional shape of the helical groove is trapezoidal, triangle, rectangle or semicircle.
The utility model also provides a kind of agricultural greenhouse system, including greenhouse main body, is provided with the greenhouse main body State external mounting type cylindrical drip irrigation tube.
Compared with prior art, the advantages of the utility model and good effect is:Agricultural greenhouse provided by the utility model System and greenhouse gardening method, by the way that column dripper to be enclosed on to the outside of water pipe, and utilize the helical groove on column dripper Helical buffer passage is formed between the outer tube wall of water pipe, helical buffer passage substitutes turbulent flow passageway and realizes that water flow speed reduction buffers, And because roundabout, turning, dead angle is not present in helical buffer passage generally helical structure, it can effectively avoid bulky grain thing to exist Precipitation and accumulation at roundabout, turning, dead angle, avoid blocking from flow principles, can so as to effectively improve use By property.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are Some embodiments of the utility model, for those of ordinary skill in the art, do not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of the utility model agricultural greenhouse system;
Fig. 2 is the structural representation of the utility model agricultural greenhouse system.
Fig. 3 is the partial sectional view of drip irrigation pipe in the utility model agricultural greenhouse system;
Fig. 4 is the sectional view of column dripper in the utility model agricultural greenhouse system;
Fig. 5 is the sectional view of automatic control flow controller in agricultural greenhouse system of the present invention.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to The scope of the utility model protection.
As Figure 1-Figure 5, the present embodiment agricultural greenhouse system, including greenhouse 1, battery(It is not shown)And controller (It is not shown), the top of the greenhouse 1 is provided with polylith hollow plate glass 12, and hollow plate glass 12 described in polylith forms described big The transparent surface of canopy 1, photovoltaic generation film 10 is provided with the hollow plate glass 12 of part, per two pieces of adjacent photovoltaics hairs Conductive film 10 is staggered;Greenhouse 1 is internally provided with the drip irrigation pipe 2 for being buried in subsurface, is offered on the water pipe of drip irrigation pipe 2 more Individual delivery port 20, formed with helical groove 213 on the inner tubal wall of column dripper 21, opened up on the outer wall of the column dripper 21 There is osculum 212, the osculum 212 connects with the helical groove 213, and the column dripper 21 is enclosed on the drip irrigation pipe Helical buffer passage is formed between the outer tube wall of the water pipe of the outside of 2 water pipes, the helical groove 213 and the drip irrigation pipe 2 200, the delivery port 20 connects with the helical buffer passage 200;The bottom of the hollow plate glass 12 is provided with water leg 13, the bottom of the greenhouse 1 is additionally provided with water tank 3, and the water leg 13 is connected with the water tank 2, and the water tank 3 passes through water supply Pump(It is not shown)It is connected with the drip irrigation pipe 2, the water pump is connected with the controller;The side wall of the greenhouse 1 is provided with very Empty warming plate(It is not shown), the lower edges of the greenhouse are provided with coaming 4, and the bottom of the coaming 4 is embedded in Below ground, the coaming 4 are located at the top of the drip irrigation pipe 2, and the top edge of every piece of hollow plate glass 12 is set There is shower(It is not shown), the shower passes through cleaning pump(It is not shown)It is connected with the water tank 3.
Specifically, drip irrigation pipe 2 is set in outside the column dripper that the drip irrigation pipe 2 in the present embodiment agricultural greenhouse system uses Outside water pipe, column dripper 21 can be set in outside the water pipe of drip irrigation pipe 2 outside by the way of sweat soldering, in column dripper 21 The pipe outer wall of helical groove 213 and drip irrigation pipe 2 form helical buffer passage 200, helical buffer passage 200 substitutes existing The turbulent flow passageway that water dropper is formed in technology, because helical buffer passage 200 is distributed in the periphery of drip irrigation pipe 2, can effectively increase The length of long spire buffer channel 200, be advantageous to consume current ability and reduce hydraulic pressure, so as to pass through helical buffer passage 200 The effect of turbulent flow passageway is realized, and helical buffer passage 200 increases stream course, power consumption is big, so helical groove 213 can With more much bigger than traditional interior edge column dripper size(Conventional size:0.5-1.2mm, the chi of the utility model column dripper 21 It is very little:2 ~ 6mm, meanwhile, osculum 212 also can wide-bore), it is often more important that, the stroke of helical buffer passage 200 without roundabout, turning, Dead angle, precipitation and accumulation of the bulky grain thing at roundabout, turning, dead angle are avoided, blocking is avoided from flow principles.Wherein, The one end of helical groove 213 is arranged to intake chamber 211, and intake chamber 211 is oppositely arranged with delivery port 20 so that water pipe conveys Water flowed into via delivery port 20 and intake chamber 211 in the helical buffer passage 200 that helical groove 213 is formed, in addition, in order to Anti-clogging is further improved, the aperture of the osculum 212 is gradually reduced from inside to outside, also, is also set up in osculum 212 There is automatic control flow controller 22, the automatic control flow controller 22 includes the first trapezoidal round platform 221, connecting rod 223, the ladder of spring 224 and second The side wall of shape round platform 222, the first trapezoidal round platform 221 and the second trapezoidal round platform 222 is provided with a plurality of current groove (It is not shown), the size of the first trapezoidal round platform 221 is less than the size of second bucking ladder 222, and the connecting rod 223 is solid It is scheduled on the described first trapezoidal round platform 221, the second trapezoidal round platform 222 is slidably disposed in the connecting rod 223, institute Spring 224 is stated to be arranged between the described first trapezoidal round platform 221 and the second trapezoidal round platform 222;The first trapezoidal round platform 221 are stuck in the osculum 212, the hole of the current groove on the first trapezoidal round platform 221 and the osculum 212 Exhalant canal is formed between wall.Specifically, the hole wall of the current groove and osculum 212 on the first trapezoidal round platform 221 is formed out Aquaporin, the water of water pipe conveying are discharged eventually through exhalant canal, and when exhalant canal is blocked by silt, pressing can be passed through First trapezoidal round platform 221 is allowed to loosen, and the silt in exhalant canal just can discharge along current, so as to solve in the prior art The problem of can not being repaired after the emitter clogging of somewhere;Meanwhile second trapezoidal round platform 222 can be under by different size of water pressures Reconnect and moved on bar 223, so as to change the water outlet space size between the first trapezoidal bucking ladder 222 of round platform 221 and second, water During pressure increase, the end face of the second bucking ladder 222 compression spring 224 under hydraulic pressure effect moves, and makes the first trapezoidal round platform 221 and second The hydrospace that goes out that bucking ladder 222 is formed with osculum 212 diminishes, thus outflow diminishes, and realizes the automatic tune unstable to hydraulic pressure Section;Conversely, when hydraulic pressure becomes small, spring will cause the second bucking ladder 222 to move backward, and increase the first trapezoidal round platform 221 and the What two bucking ladders 222 and osculum 212 were formed go out hydrospace, during whole drip irrigation, the automatic control flow controller is built with water pressure fluctuations Erect dynamic balance state.
And be arranged on photovoltaic generation film 10 on the transparent surface of greenhouse 1, photovoltaic generation film 10 uses what is be staggered Mode is arranged, and because the direction of illumination of the sun on daytime constantly changes, the photovoltaic generation film 10 being staggered may insure The crops in diverse location region can obtain enough illumination in greenhouse 1, it is preferred that photovoltaic generation film 10 uses amorphous Body thin film solar cell, non-crystal thin film solar cell have printing opacity effect, can transmit the feux rouges of outside and blue light To inside greenhouse 1, meet the illumination required for plant growth, and because photovoltaic generation film 10 is directly arranged at the saturating of greenhouse 1 It smooth surface, can effectively increase the area of photovoltaic generation film 10, improve generated energy.Electric energy caused by photovoltaic generation film 10 is deposited Storage is in battery, controller control associated appliance part powered operation.Wherein, the side wall of greenhouse 1 is entered using vacuum heat-insulation plate Row insulation, vacuum heat-insulation plate has good heat-insulating property, and the top of greenhouse 1 uses hollow plate glass 12, hollow plate glass 12 may insure that the top of greenhouse 1 has good heat-insulating property, so as to realize night in the winter time, without user on greenhouse 1 Heat holding curtain is covered, in addition, the transparent surface of greenhouse 1 is spliced to form using polylith hollow plate glass 12, the use of hollow plate glass 12 Life-span is longer, can avoid the trouble for being needed often replacing using transparent membrane and being brought.And covering below ground in greenhouse 1 Drip irrigation pipe 2 is buried, and the collection rainwater of water leg 13 is additionally provided with the transparent surface of greenhouse 1 and is stored in water tank 3, is needing to irrigate When, controller control water pump is powered, and the water in water tank 3 is transported in drip irrigation pipe 2 by water pump, directly to the Crop Root in soil System is irrigated.Find in actual use, because drip irrigation pipe 2 is in the depth position of the root system 101 of below ground crops 100 Water supply is put, the water exported from drip irrigation pipe 2 flows downward under gravity, and the root system 101 of crops 100 has hydrotropism, deep Layer soil moisture is more, can attract the root system 101 of crops 100 can be deeper to striking root into the ground so that crops 100 can With more vigorous state growth, agricultural product best in quality are obtained, while the water that it also avoid the output of drip irrigation pipe 2 is largely steamed Hair, reduces water consumption.And for the earth's surface inside greenhouse 1, due to the supply of no moisture, the soil layer of earth's surface is chronically at dry Dry state so that being grown in the weeds of earth's surface can not survive, and reduce the labor intensity of peasant household's weeding.And in order to improve vacuum The translucency of glass plate 12, the top edge of every piece of hollow plate glass 12 are provided with shower, and the shower passes through cleaning Pump(It is not shown)It is connected with the water tank 3, in actual use, hollow plate glass 12 can cause printing opacity because of factors such as dusts Property decline, now, by cleaning pump by water under high pressure inject shower in shower nozzle by the surface of hollow plate glass 12 Cleaned, and the water to be circulated from hollow plate glass 12 flow back into water leg 13, and water tank 3 is back flowed back into by water leg 13 Middle recycling, the import of water leg 13 or water tank 3 as needed are provided with screen pack, are entered with filtering miscellaneous in water tank 3 Matter.Preferably, the present embodiment photovoltaic Ecological Greenhouse system also includes air pump(It is not shown), the drip irrigation pipe 2 passes through mixing valve point It is not connected with the air pump and the water pump, the air pump and the mixing valve are connected with the controller respectively, specifically, In actual use, in order that the oxygen content for obtaining the opening position of root system 101 of crops 100 improves, can be made by mixing valve Obtain water pump and air pump is connected with drip irrigation pipe 2 simultaneously, can be defeated by appropriate air caused by air pump while drip irrigation pipe 2 supplies water Deliver in the soil of lower floor, to be more beneficial for vegetating for the root system 101 of crops 100;It is of course also possible to as needed first Ventilation, in conveying water, it is not limited herein.
In order to ensure the surface soil layer in greenhouse 1 is all the time in dry state, the extraneous factor such as rain is avoided to cause outer Boundary's water is flowed into greenhouse 1, and the lower edges of the greenhouse 1 are provided with coaming 4, and the bottom of the coaming 4 is buried In below ground, the coaming 4 is located at the top of the drip irrigation pipe 2.Specifically, coaming 4 is by the ground inside greenhouse 1 The pedosphere of certain depth gets up to be isolated from the outside out under table, in the presence of coaming 4, can stop outside greenhouse 1 Rainwater is penetrated into the surface soil layer in greenhouse 1 from earth's surface, so that it is guaranteed that the earth's surface inside greenhouse 1 keeps drying the shape of arid In state, the so plant growing process in greenhouse 1, using drip irrigation pipe 2 under earth's surface directly to the root system of crops 100 101 supply water, and to ensure that earth's surface is in the state of arid, the weeds of earth's surface are dried because water shortage is difficult germination or existence Earth's surface causes the humidity of the inner space of greenhouse 1 to be maintained at relatively low level, so that bacterium insects are difficult on crops 100 Growth and breeding, the usage amount of agricultural chemicals can be substantially reduced, meanwhile, it can prevent to use herbicide, largely be worked without expending Power removes artificial weeding, reaches the purpose of green plantation;, can be with meanwhile that peasant household can be easy to dig is ventilative for dry earth's surface Greatly improve the quality of agricultural product.Coaming 4 is embedded in the depth in soil in the present embodiment, according to local weeds species root system Grow depth to determine, the requirement that the depth to ensure earth's surface drying soil layer is unsatisfactory for weed growth is defined, and the burial of drip irrigation pipe 2 Depth, depending on the growth depth of the root system 101 of crops 100, and because the growth depth of the root system 101 of crops 100 is greater than The growth depth of weeds root system, so that drip irrigation pipe 2 can only supply water to crops 100, the specific depth of earth's surface is ensured all the time The state that soil layer keeps arid is spent, the present embodiment is not limited the height dimension of coaming 4, the burying depth size of drip irrigation pipe 2 System.
Further, in order to realize that automatic irrigation is planted, the output for more accurately controlling drip irrigation pipe 2, institute are realized The upper and lower part for stating drip irrigation pipe 2 is correspondingly arranged on humidity sensor 51 and lower humidity sensor 52, the upper humidity sensor Device 51, lower humidity sensor 52 are connected with the controller respectively;The upper humidity sensor 51 and the lower humidity sensor 52 are embedded in subsurface.Specifically, during proportion of crop planting, the inside soil digging groove of greenhouse 1 bury drip irrigation pipe 2, under it is wet The root system 101 of sensor 52 and crops 100 is spent, during being buried, then upper humidity sensor 51 is buried in upper strata In soil, and during actual irrigation, the humidity value of surrounding is detected by lower humidity sensor 52 to judge whether to need drip irrigation pipe 2 Water supply irrigation is carried out, and during irrigation, if the humidity that upper humidity sensor 51 detects is more than setting value, stop drop Fill pipe 2 to continue to irrigate, to ensure that earth's surface is in drying regime, and the root system 101 of crops 100 can obtain optimal moisture and supply Ying Liang.Preferably, it is provided with the level switch being connected with the controller in water tank 3(It is not shown), rainy season amount of rainfall compared with In the case of big, when the water that level switch is detected in water tank 3 reaches highest moisture storage capacity, then start water pump by unnecessary rain Water is transported in other containers and kept in, and meets the water supply requirement of Various Seasonal rainfall skewness.
In addition, the greenhouse 1 is internally provided with the temperature sensor being connected with the controller(It is not shown), the greenhouse 1 is provided with switchable ventilating opening 14, specifically, can monitor the temperature in greenhouse 1 in real time by temperature sensor, works as greenhouse When temperature in 1 is too high, crops fast-growth will be influenceed, then there is controller control greenhouse 1 to open ventilating opening.When in greenhouse 1 Temperature it is too low when, also will influence crops fast-growth, then by controller control greenhouse 1 close ventilating opening, in good time insulation.It is excellent Choosing, in order to effectively extend the photosynthesis time of crops, switchable solar protection devices is additionally provided with above greenhouse 1 (It is not shown), solar protection devices will coordinate light sensor(It is not shown), sunlight strength highest period at noon, because illumination is strong Spending can cause crops to stop photosynthesis on the contrary by force, after the light intensity of light sensor detection is more than setting value, control Device control solar protection devices processed, which is opened, covers in greenhouse 1, the light intensity in greenhouse 1 is reduced, so that the crops in greenhouse 1 Continue photosynthesis, reach that the nutrition of crops is more abundant, quality is more preferable.And solar protection devices can be sunshade net, hide The sun-shading equipment such as anode membrane or sunshading board.

Claims (5)

1. a kind of external mounting type cylindrical drip irrigation tube, including water pipe, multiple delivery ports are offered on the water pipe, it is characterised in that also Including multiple column drippers, formed with helical groove on the inner tubal wall of the column dripper, on the outer wall of the column dripper Osculum is offered, the osculum connects with the helical groove, and the column dripper is enclosed on the outside of the water pipe, institute State and helical buffer passage is formed between the outer tube wall of helical groove and the water pipe, the delivery port leads to the helical buffer Road connects.
2. external mounting type cylindrical drip irrigation tube according to claim 1, it is characterised in that the aperture of the osculum is from inside to outside It is gradually reduced.
3. external mounting type cylindrical drip irrigation tube according to claim 2, it is characterised in that be additionally provided with automatic control in the osculum Flow controller, the automatic control flow controller include the first trapezoidal round platform, connecting rod, spring and the second trapezoidal round platform, and described first is trapezoidal The side wall of round platform and the second trapezoidal round platform is provided with a plurality of current groove, and the size of the first trapezoidal round platform is less than institute The size of the second bucking ladder is stated, the connecting rod is fixed on the described first trapezoidal round platform, and the second trapezoidal round platform is slidably Be arranged in the connecting rod, the spring is arranged between the described first trapezoidal round platform and the second trapezoidal round platform;Institute State the first trapezoidal round platform to be stuck in the osculum, the current groove on the first trapezoidal round platform and the osculum Exhalant canal is formed between hole wall.
4. external mounting type cylindrical drip irrigation tube according to claim 1, it is characterised in that the cross sectional shape of the helical groove For trapezoidal, triangle, rectangle or semicircle.
5. a kind of agricultural greenhouse system, including greenhouse main body, it is characterised in that set in the greenhouse main body just like claim Any described external mounting type cylindrical drip irrigation tubes of 1-4.
CN201720615860.5U 2017-05-31 2017-05-31 External mounting type cylindrical drip irrigation tube and agricultural greenhouse system Expired - Fee Related CN206866199U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720615860.5U CN206866199U (en) 2017-05-31 2017-05-31 External mounting type cylindrical drip irrigation tube and agricultural greenhouse system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720615860.5U CN206866199U (en) 2017-05-31 2017-05-31 External mounting type cylindrical drip irrigation tube and agricultural greenhouse system

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Publication Number Publication Date
CN206866199U true CN206866199U (en) 2018-01-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109220728A (en) * 2018-11-12 2019-01-18 华北水利水电大学 A kind of anti-blocking high voltage double-layer two-chamber drip irrigation pipe of long distance
CN112314398A (en) * 2020-11-04 2021-02-05 山东省农业科学院作物研究所 Utilize solar energy or wind energy steady voltage to drip irrigation device and system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109220728A (en) * 2018-11-12 2019-01-18 华北水利水电大学 A kind of anti-blocking high voltage double-layer two-chamber drip irrigation pipe of long distance
CN109220728B (en) * 2018-11-12 2023-12-22 华北水利水电大学 Long-distance anti-blocking high-pressure double-layer double-cavity drip irrigation pipe
CN112314398A (en) * 2020-11-04 2021-02-05 山东省农业科学院作物研究所 Utilize solar energy or wind energy steady voltage to drip irrigation device and system
CN112314398B (en) * 2020-11-04 2023-02-28 山东省农业科学院作物研究所 Utilize solar energy or wind energy steady voltage to drip irrigation device and system

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