CN2745344Y - Pressure compensation type drop irrigation mulch film - Google Patents
Pressure compensation type drop irrigation mulch film Download PDFInfo
- Publication number
- CN2745344Y CN2745344Y CN 200420087484 CN200420087484U CN2745344Y CN 2745344 Y CN2745344 Y CN 2745344Y CN 200420087484 CN200420087484 CN 200420087484 CN 200420087484 U CN200420087484 U CN 200420087484U CN 2745344 Y CN2745344 Y CN 2745344Y
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- China
- Prior art keywords
- drip irrigation
- water inlet
- water delivery
- water
- irrigate band
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Abstract
The utility model relates to a pressure compensation type drop irrigation mulch film, which is orderly arranged by a water delivery drip irrigation band composed of a single layer plastic film and a double-layer plastic film. The thickness of the water delivery drip irrigation band composed of the single layer plastic film is equal to the thickness of the water delivery drip irrigation band composed of the double-layer plastic film, and the mulch film can be wrapped evenly into the film roll. The Drip irrigation band is equipped with a drip irrigation hole and a water inlet. The pitch of the drip irrigation hole is large when it is close to the water inlet, and the pitch gradually decreases when it is far away from the water inlet; the hole diameter of the drip irrigation hole is small when it is close to the water inlet, and the hole diameter increases when it is far away from the water inlet; therefore, the drip irrigation hole has the pressure compensation effect, and the irrigating uniformity can be improved. The mulch film is very thick and is provided with tearing holes along the seeding line, which can be easily taken off and recovered cleanly to eliminate 'white pollution' in the farmland. The utility model also has the advantages of low operation pressure, good water saving effect, anti-block, and low cost, etc. The pressure compensation type drop irrigation mulch film is applicable for the various agronomic crops machine such as field and green house or manual labour to coat the film and to do the trickle irrigation.
Description
One, technical field
The utility model 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 purpose of this utility model is to provide a kind of pressure-compensated drip irrigation mulch film, and 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.
The technical solution of the utility model 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 utility model compared with prior art, it is the mulch film that the water delivery irrigate band of the synthetic single layer plastics films of bucket film direct heat and double-plastic formation alternately thickness is successively equated, or plastic raw materials directly is blow molded into water delivery irrigate band that single layer plastics films and double-plastic the constitute mulch film that equates of alternately thickness successively, 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 utility model 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 also can be opened in the junction of the water delivery irrigate band of single layer plastics films and double-plastic formation, and the pitch-row in drip irrigation hole equates and the aperture equates.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, discharge air in the irrigate band from 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 utility model 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 therefore 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 utility model 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 medicine with economizing and economizes fertile; 4. cost is low, energy consumption is little.
The utility model 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 utility model.
Accompanying drawing 2 is offered drip irrigation hole schematic diagram for water delivery of the present utility model irrigate band side.
Accompanying drawing 3 is that schematic diagram is used in land for growing field crops of the present utility model.
Accompanying drawing 4 is a schematic cross section of the present utility model.
Five, embodiment
With reference to Fig. 1, the utility model 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 on the water delivery irrigate band 2 if in individual drip irrigation hole 4, 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 utility model 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, or 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 water inlet 3 places, 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.
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 200420087484 CN2745344Y (en) | 2004-08-03 | 2004-08-03 | Pressure compensation type drop irrigation mulch film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087484 CN2745344Y (en) | 2004-08-03 | 2004-08-03 | Pressure compensation type drop irrigation mulch film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745344Y true CN2745344Y (en) | 2005-12-14 |
Family
ID=35581935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420087484 Expired - Fee Related CN2745344Y (en) | 2004-08-03 | 2004-08-03 | Pressure compensation type drop irrigation mulch film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745344Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104837333A (en) * | 2012-08-21 | 2015-08-12 | 水生机两合公司 | Irrigation hose |
| CN105638338A (en) * | 2016-01-20 | 2016-06-08 | 山东省果树研究所 | Manufacturing equipment for agricultural ground cover |
| CN105684796A (en) * | 2016-01-20 | 2016-06-22 | 山东省果树研究所 | Cover-irrigation integrated agriculture ground cover |
| CN109803528A (en) * | 2016-10-14 | 2019-05-24 | 灵敏滴灌有限责任公司 | Mix irrigation pipe |
-
2004
- 2004-08-03 CN CN 200420087484 patent/CN2745344Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104837333A (en) * | 2012-08-21 | 2015-08-12 | 水生机两合公司 | Irrigation hose |
| 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 |
| CN105638338A (en) * | 2016-01-20 | 2016-06-08 | 山东省果树研究所 | Manufacturing equipment for agricultural ground cover |
| CN105684796A (en) * | 2016-01-20 | 2016-06-22 | 山东省果树研究所 | Cover-irrigation integrated agriculture ground cover |
| CN105638338B (en) * | 2016-01-20 | 2018-08-10 | 山东省果树研究所 | A kind of making apparatus of farming land quilt |
| CN109803528A (en) * | 2016-10-14 | 2019-05-24 | 灵敏滴灌有限责任公司 | Mix irrigation pipe |
| CN109803528B (en) * | 2016-10-14 | 2022-02-08 | 灵敏滴灌有限责任公司 | Mixed irrigation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |