CN1726761A - Pressure compensation type trickling irrigation mulching film - Google Patents
Pressure compensation type trickling irrigation mulching film Download PDFInfo
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- CN1726761A CN1726761A CN 200410054774 CN200410054774A CN1726761A CN 1726761 A CN1726761 A CN 1726761A CN 200410054774 CN200410054774 CN 200410054774 CN 200410054774 A CN200410054774 A CN 200410054774A CN 1726761 A CN1726761 A CN 1726761A
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- drip irrigation
- water inlet
- irrigate band
- water delivery
- water
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Abstract
A pressure compensated ground film for drip irrigation is prepared by sequentially arranging the drip irrigation bands composed of a single-layer plastic film and a dual-layer plastic film at intervals. Its features that the far the distance from the drip irrigation hole to the water, the smaller the interval and the greater the hole diameter, resulting in a pressure compensation action.
Description
One, technical field
The present invention is a kind of pressure-compensated drip irrigation mulch film, specifically a kind of plastic film that can be used in the farmland drip irrigation.
Two, background technology
Crops plastic film culture underglass increases production and improves productivity significantly, irrigate and the difficulty of topdressing, though can irrigate and topdress after taking off film, but between invalid evaporation strong, cause soil drought, cause the liquid manure imbalance, influence output, and exist " white pollution " problem.Sprinkling irrigation and under-film drip irrigation all can carry out overlay film irrigation and topdress on the film, but the cost height, energy consumption is big, to the water quality requirement height, and can not solve " white pollution " problem.
China's utility application number: 87215299.5 disclose a kind of plastics film for micro-irrigation, 98244650.0 discloses and a kind ofly manyly discloses a kind of standpipe belt infiltrating irrigation plastic film, 00226228.2 and disclose the attached pipe mulch film of a kind of disposable plastic, 02206758.2 and disclose a kind of Water-saving irrigation mulching film with irrigating mulch film, 98212228.4, they can both solve overlay film and irrigate and the problem of topdressing, and cost is low, energy consumption is little, and water-saving result is remarkable.But there are the following problems jointly: 1. mulch film can not entirely batch the film forming volume; 2. the water delivery irrigate band does not have the pressure compensation effect; 3. take off film and reclaim difficulty.
Three, summary of the invention
The object of the present invention is to provide a kind of pressure-compensated drip irrigation mulch film, the mulch film that can solve the prior art existence effectively can not entirely batch the film forming volume, the water delivery irrigate band does not have the pressure compensation effect and takes off the problem that film reclaims difficulty.
Technical scheme of the present invention is: it is formed successively alternately by the water delivery irrigate band that single layer plastics films and double-plastic constitute, the water delivery irrigate band offers the drip irrigation hole, it is characterized in that successively the thickness of the water delivery irrigate band that alternately single layer plastics films and double-plastic constitute equates; Offer a water inlet on the water delivery irrigate band at a certain distance; The pitch-row in the drip irrigation hole on the water delivery irrigate band reduces along with the increase of leaving the water inlet distance gradually big near the water inlet; The aperture in the drip irrigation hole on the water delivery irrigate band increases along with the increase of leaving the water inlet distance gradually little near the water inlet; Single layer plastics films upper edge sowing line offers tearing hole; Drip irrigation hole on the water delivery irrigate band is opened in the junction of the water delivery irrigate band that single layer plastics films and double-plastic constitute, and break-through mulch film up and down.
Prior art is the plastics cloth to be pasted or heat seal constitutes semicircle water delivery irrigate band on the common plastics mulch film, or with the heat seal of water delivery irrigate band on the common plastics mulch film, the mulch film that formation has irrigation function.Because the thickness of its water delivery irrigate band is much larger than the thickness of common plastics mulch film, thereby mulch film can not entirely batch the film forming volume.02206758.2 disclosed a kind of Water-saving irrigation mulching film in addition, because its mulch film two ends are respectively equipped with tube connector, the tube connector of mulch film origin or beginning is provided with water inlet pipe, and the tube connector of tail end is provided with the decompression outlet valve, cause mulch film unanimity in uneven thickness, thereby mulch film can not entirely batch the film forming volume.The present invention compared with prior art, it is the mulch film that the method that adopts heat seal directly equates the water delivery irrigate band of bucket film thermal synthesis single layer plastics films and double-plastic formation alternately thickness successively, or the method that the adopts blowing water delivery irrigate band mulch film that equates of alternately thickness successively that directly plastic raw materials is blow molded into single layer plastics films and double-plastic formation, because the thickness uniformity of mulch film, thereby mulch film can entirely batch film forming volume, thereby can solve the problem that mulch film that prior art exists can not entirely batch the film forming volume well.
Prior art, offer the drip irrigation hole below the water delivery irrigate band, because the pitch-row in its drip irrigation hole equates and the aperture equates, when the water delivery drip irrigation, begin drip irrigation earlier in drip irrigation hole near the water inlet, cause that water flow pressure descends, influence drip irrigation hole, current direction downstream and carry, cause near the drip irrigation amount in drip irrigation hole, water inlet big, and it is little away from the drip irrigation amount in drip irrigation hole, water inlet, therefore do not have the pressure compensation effect, cause and pour water inhomogeneously, influence output.The present invention compared with prior art, the pitch-row in the drip irrigation hole on the water delivery irrigate band is big near the water inlet, reduce gradually along with the increase of leaving the water inlet distance, the aperture in the drip irrigation hole on the water delivery irrigate band is little near the water inlet, increase gradually along with the increase of leaving the water inlet distance, when the water delivery drip irrigation, can suitably limit drip irrigation amount near drip irrigation hole, water inlet, increase the pressure of current, promote current drip irrigation hole conveying downstream successively, make near the pressure flow in drip irrigation hole, water inlet and reach consistent with pressure flow away from drip irrigation hole, water inlet, therefore has the pressure compensation effect, uniformity of irrigation water appilcation can be improved, thereby the problem that water delivery irrigate band that prior art exists does not have the pressure compensation effect can be solved well.In order to increase the pressure compensation effect of water delivery irrigate band, improve uniformity of irrigation water appilcation, the drip irrigation hole on the water delivery irrigate band is opened in the junction of the water delivery irrigate band of single layer plastics films and double-plastic formation, makes the pitch-row in drip irrigation hole equate equal with the aperture.To have a height and position poor because the drip irrigation hole is compared with the bottom of water delivery irrigate band, when the water delivery drip irrigation, air in the irrigate band is discharged in the drip irrigation hole, eliminate vapour lock, when rising to the drip irrigation hole site Deng the water surface, each drip irrigation hole just begins synchronous drip irrigation, make near the pressure flow in drip irrigation hole, water inlet and reach consistent with pressure flow away from drip irrigation hole, water inlet, therefore has the pressure compensation effect, uniformity of irrigation water appilcation can be improved, thereby the problem that water delivery irrigate band that prior art exists does not have the pressure compensation effect can be solved well.
Prior art, because common ground film is very thin ,≤0.008mm uses that aging speed is fast therebetween, occurs brokenly when taking off film, makes to be embedded in the soil and the mulch film of crop root can not reclaim totally, causes to take off film and reclaim difficultly, causes farmland " white pollution ".The present invention compared with prior art because mulch film is thicker, 〉=0.01mm, use that aging speed is slow therebetween, and offer tearing hole along sowing line, mulch film splits along sowing line when taking off film becomes the film bar, can be not broken, the mulch film whole piece that can will be embedded in the soil is extracted, can make the mulch film of crop root avoid twining with rhizome, it is smooth to accomplish to take off film, reclaims clean, thereby can solve the problem of taking off film recovery difficulty that prior art exists well, can fundamentally solve " white pollution " in farmland.
The present invention also has following characteristics: move 1. that hydraulic pressure is low, water-saving result good, the anti-obstruction; 2. press salt to press alkali, keep soil from packing together; 3. easy and simple to handle, saving of labor economizes ground, economizes medicine province fertilizer; 4. cost is low, energy consumption is little.
The present invention is applicable to that crops large tracts of land mechanized such as grain, cotton, oil, sugar, melon dish and warm canopy handwork carries out plastic mulching and drip irrigation.
Four, description of drawings
Accompanying drawing 1 is a film two tubular construction schematic diagrames of the present invention.
Accompanying drawing 2 is offered drip irrigation hole schematic diagram for water delivery of the present invention irrigate band side.
Accompanying drawing 3 is that schematic diagram is used in land for growing field crops of the present invention.
Accompanying drawing 4 is a schematic cross section of the present invention.
Five, embodiment
With reference to Fig. 1, the present invention is formed successively alternately by the water delivery irrigate band 2 that single layer plastics films 1 and double-plastic constitute, offer a water inlet 3 on the water delivery irrigate band 2 at a certain distance, offer drip irrigation hole 4 on the water delivery irrigate band 2, the pitch-row in drip irrigation hole 4 is big near water inlet 3 places, reduce gradually along with the increase of leaving water inlet 3 distances, the aperture in drip irrigation hole 4 is little near water inlet 3 places, increase gradually along with the increase of leaving water inlet 3 distances, single layer plastics films 1 upper edge sowing line is offered tearing hole 5.
With reference to Fig. 2, in order to increase the pressure compensation effect of water delivery irrigate band, improve uniformity of irrigation water appilcation, the position in drip irrigation hole 4 can also be opened in the junction of the water delivery irrigate band 2 of single layer plastics films 1 and double-plastic formation, and the drip irrigation hole is the break-through mulch film about in the of 4.
With reference to Fig. 3 and Fig. 4, with cotton one film four lines, both a film two pipe is example, during operation, the present invention is laid on the ground, and along sowing line bunch planting seed, but mechanization shop film, sowing, earthing are finished synchronously.Arm 9 laid with secondary branched pipe 6 with one-level branched pipe 7 and be connected logically, secondary branched pipe 6 is inserted water delivery irrigate band 2 to both sides respectively from water inlet 3, with the soil pressure reality or frap.If one-level branched pipe 7 is flexible pipes, need to be connected with water delivery irrigate band 2 with hard pipe joint.When pouring water, open water inlet switch 8, current flow to water delivery irrigate band 2 and to the both sides conveying, drop by drop drip to ground from drip irrigation hole 4 under action of gravity, the soil layer of moistening crop root from secondary branched pipe 6.Because the pitch-row in drip irrigation hole 4 is big near water inlet 3 places, reduce gradually along with the increase of leaving water inlet 3 distances, the aperture in drip irrigation hole 4 is little near water inlet 3 places, increase gradually along with the increase of leaving water inlet 3 distances, during the water delivery drip irrigation, can suitably limit drip irrigation amount near drip irrigation hole, water inlet 3 place 4, increase water flow pressure, promote current drip irrigation hole 4 conveyings downstream successively of 2 li of water delivery irrigate bands, make near the pressure flow in water inlet 3 place drip irrigation hole 4 and reach consistent, the raising uniformity of irrigation water appilcation with pressure flow away from drip irrigation hole, water inlet 3 place 4.After reaching the requirement of pouring water, close water inlet switch 8.When carrying out next round when pouring water, open water inlet switch 8 and get final product drip irrigation.
Big and when be descending when the gradient of ploughing, can change unidirectional water delivery drip irrigation into, both with secondary branched pipe 6 same downstream insertion water delivery irrigate bands 2.
During the water delivery drip irrigation, can be with fertilizer and agricultural chemicals water-soluble in, fertile and medicine is filled in the root of crop with water droplet, can improve fertilizer efficiency and drug effect, can also economize the fertile medicine of economizing, and prevents medicine fertilizer leaching loss and contaminated environment.
With reference to Fig. 3 and Fig. 4, after crops are cut off the water, arm 9 and one-level branched pipe 7 and secondary branched pipe 6 are packed up warehouse-in.When taking off the film recovery, earlier the film head is uncovered, along tearing hole 5 mulch film is torn into opening, artificial or machinery is taken off film, and mulch film splits along tearing hole 5 becomes the film bar, because mulch film is thicker, can be not broken, can uncover smoothly with the mulch film of crop root being embedded in the soil, and the whole piece recovery, farmland " white pollution " can not caused.
Claims (6)
1, a kind of pressure-compensated drip irrigation mulch film, it is formed successively alternately by the water delivery irrigate band that single layer plastics films and double-plastic constitute, the water delivery irrigate band offers the drip irrigation hole, it is characterized in that successively the thickness of the water delivery irrigate band that alternately single layer plastics films and double-plastic constitute equates; Offer a water inlet on the water delivery irrigate band at a certain distance; The pitch-row in the drip irrigation hole on the water delivery irrigate band reduces along with the increase of leaving the water inlet distance gradually big near the water inlet; The aperture in the drip irrigation hole on the water delivery irrigate band increases along with the increase of leaving the water inlet distance gradually little near the water inlet; Single layer plastics films upper edge sowing line offers tearing hole; Drip irrigation hole on the water delivery irrigate band is opened in the junction of the water delivery irrigate band that single layer plastics films and double-plastic constitute, and break-through mulch film up and down.
2, a kind of pressure-compensated drip irrigation mulch film as claimed in claim 1 is characterized in that successively the thickness of the water delivery irrigate band that alternately single layer plastics films and double-plastic constitute equates that its thickness is 0.01mm～0.04mm.
3, a kind of pressure-compensated drip irrigation mulch film as claimed in claim 1, it is characterized in that offering at a certain distance on the water delivery irrigate band water inlet, the width of its water delivery irrigate band is 2cm～8cm, and the distance between its adjacent two water inlets is 30m～180m.
4, a kind of pressure-compensated drip irrigation mulch film as claimed in claim 1, the pitch-row that it is characterized in that the drip irrigation hole on the water delivery irrigate band is big near the water inlet, reduce gradually along with the increase of leaving the water inlet distance, its aperture equates, pitch-row is being 20cm～4cm being 100cm～20cm near the water inlet away from the water inlet.
5, a kind of pressure-compensated drip irrigation mulch film as claimed in claim 1, the aperture that it is characterized in that the drip irrigation hole on the water delivery irrigate band is little near the water inlet, increase gradually along with the increase of leaving the water inlet distance, its pitch-row equates, the aperture is being 3mm～9mm being 1mm～3mm near the water inlet away from the water inlet.
6, a kind of pressure-compensated drip irrigation mulch film as claimed in claim 1, it is characterized in that the drip irrigation hole on the water delivery irrigate band is opened in the junction of the water delivery irrigate band of single layer plastics films and double-plastic formation, and break-through mulch film up and down, the pitch-row in its drip irrigation hole equates that the aperture in drip irrigation hole equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410054774 CN1726761A (en) | 2004-07-28 | 2004-07-28 | Pressure compensation type trickling irrigation mulching film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410054774 CN1726761A (en) | 2004-07-28 | 2004-07-28 | Pressure compensation type trickling irrigation mulching film |
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| CN1726761A true CN1726761A (en) | 2006-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410054774 Pending CN1726761A (en) | 2004-07-28 | 2004-07-28 | Pressure compensation type trickling irrigation mulching film |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340131A (en) * | 2013-05-09 | 2013-10-09 | 中国农业科学院农田灌溉研究所 | Surface-irrigation field irrigation device |
| CN103688804A (en) * | 2013-05-09 | 2014-04-02 | 孙博 | Universal rainwater collection mulch belonging to whole plastic-film mulching rainwater collection drought-resisting slow-penetration mulch |
| CN109287441A (en) * | 2018-10-31 | 2019-02-01 | 昆明理工大学 | A kind of variable-flow irrigation system for pressing salt |
| CN111096212A (en) * | 2018-10-25 | 2020-05-05 | 李科修 | Drip irrigation tape processing method and drip irrigation tape |
| CN111615948A (en) * | 2020-06-05 | 2020-09-04 | 徐州徐薯食品研究院有限公司 | Ecological green moisturizing device of planting |
| CN111805911A (en) * | 2020-07-15 | 2020-10-23 | 徐州蔬客达农业科技有限公司 | Preparation method of mulching film drip irrigation tape |
| CN114431053A (en) * | 2022-01-13 | 2022-05-06 | 重庆市奉节县多品农业发展有限公司 | Green high-yield soil remediation method for navel oranges in old orchard |
-
2004
- 2004-07-28 CN CN 200410054774 patent/CN1726761A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340131A (en) * | 2013-05-09 | 2013-10-09 | 中国农业科学院农田灌溉研究所 | Surface-irrigation field irrigation device |
| CN103688804A (en) * | 2013-05-09 | 2014-04-02 | 孙博 | Universal rainwater collection mulch belonging to whole plastic-film mulching rainwater collection drought-resisting slow-penetration mulch |
| CN111096212A (en) * | 2018-10-25 | 2020-05-05 | 李科修 | Drip irrigation tape processing method and drip irrigation tape |
| CN109287441A (en) * | 2018-10-31 | 2019-02-01 | 昆明理工大学 | A kind of variable-flow irrigation system for pressing salt |
| CN109287441B (en) * | 2018-10-31 | 2023-08-22 | 福建省恒鼎建筑工程有限公司 | Variable flow irrigation system capable of pressing salt |
| CN111615948A (en) * | 2020-06-05 | 2020-09-04 | 徐州徐薯食品研究院有限公司 | Ecological green moisturizing device of planting |
| CN111805911A (en) * | 2020-07-15 | 2020-10-23 | 徐州蔬客达农业科技有限公司 | Preparation method of mulching film drip irrigation tape |
| CN114431053A (en) * | 2022-01-13 | 2022-05-06 | 重庆市奉节县多品农业发展有限公司 | Green high-yield soil remediation method for navel oranges in old orchard |
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