Description of dripping irrigation system
1. Due to the lack of awareness, capital and technology, agriculture production (including the increasingly active horticulture industry) keeps using the traditional and backward immersing irrigation. With the worsening of water resources shortage and increasing demand for water, immersing irrigation is gradually replaced by modern dropping irrigation which can save more water.
2. Dropping irrigation means drop water into the soil near crop root evenly and slowly by drop arrows, drippers, drip tapes or other orifice -type emitters on capillary tube. This way can reduce evaporation and save water.
3 . The modern science irrigation technology can take advantage of water resources effectively; relieve excessive groundwater extraction and crustal subsidence. Besides that, with the combination of exact fertilizer, this action can improve the growth conditions of crops, fruits and flowers. From this, the unit yields will be improved and excellent social and economical benefits will be improved.
4. Local precision irrigation can improve the maximum utilization of water, reduce grass, control soil humidity, reduce damaged insects and improve soil conditions.
Classifications of equipment for dripping irrigation system
1. Dripper
2. Connector
3. for Micro Irrigation And Drop Irrigation Only
4. Hole puncher
5. Fertilization System
Applications of dripping irrigation system
It is widely used for fruit trees, cotton, flowers, vegetables, melons, herbs, greenhouses, agricultural fields, crops, sand forestation and urban landscaping.
Features of dripping irrigation system
1. The water was dropped into soil near the root zone evenly and slowly.
2. The dripper can work under low working pressure.
3. The distance between two drippers can be chose by users.
4. Small flow rate, low loss by evaporation and good water-saving.
5. Small size of drippers makes installation and maintenance more convenient.
Knowledge of dripping irrigation system
How far should you keep the tube or tape away from the crops? You should know the soil texture is sand, loam or clay. Different soil texture has different infiltration rate. Besides that, you should also consider flow rate of dripper.
Clay loam sand Clay infiltration has shallow depth but wide diffusion
Loam infiltration has deep depth but narrow diffusion
Sand has the widest depth but narrowest diffusion.
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Soil type
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Diffusion range on level
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Coarse sand
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15cm-46cm
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Fine sand
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30cm-90cm
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Loam
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90cm-130cm
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Clay
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160cm-180cm
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1. Dripper flow affects diffusion range on the level. The bigger water flow is, the wide range of diffusion is. This is because the flow is very easy to form a saturated zone under the dripper, prompting the lateral diffusion of water.
2. The laying distance between dripping tube and dripping tape will affect the plants absorbing water and nutrient supply as well as affecting the impact of salt on plants.
3. The laying distance should be nearer in seedling period. For most conditions, the suitable distance to crops is 45cm. you can also adjust the dripper flow according to soil quality. For example, the distance should be narrowed to 30cm if the soil is sand.
4. The laying distance for mature crops can be widened properly as they have developed roots and can absorb distant water and nutrients.
5. Irrigation design and layout of young trees under different circumstances vary greatly from the mature trees. For example, vegetables have short growing time, so laying distance does not change with crop growth stages.
Drip irrigation uniformity
1. Uniformity of drip irrigation system is a very important technical indicator, which affects crop yield and quality.
2. Drip irrigation system can transport water and fertilizer into plants’ root zones and optimize plants’ living environment, by which the plants can reach high quality, high productive and high efficient. According to the research, we can find different demands to fertilizers for different crops and make plans for irrigation and fertilizing. Besides that, the uniformity of drip irrigation should be high enough in order to make crops get the same quantity’s water and fertilizer.
3. To improve the drip irrigation uniformity, we should choose drip emitters with excellent performance and on the other hand, the system designers should lower water pressure point as much as possible.
(1) Choose the right water pipe diameter, and set a reasonable length;
(2) choose reasonable pressure regulator equipment;
(3) Use Pressure compensation drop head or pressure compensation drip tape, drip irrigation pipe for undulating terrain ;
Setting sketch map for dripping irrigation system
Components schematic of fruit Micro irrigation system
1. Check valve
2. Water gauge
3. Pressure gage
4. Centrifugal filter
5. Automatic exhaust steam valve
6. Brake valve 7. Screen filter
8. Fertilizer tank
9. Water pump
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equipment installation of mechanic installation of head system
1. head waters 2. Water pump 3. Water 4. Impounding reservoir 5. Backflow barrier 6. Fertilizing switch 7. Irrigation master switch 8. Pressure gage 9.main filters 10. Water gauge 11.Branch pipe 12. Micro sprinkler 13 Water dropper 14. Tubular billet (drip irrigation pipe, tube) 15. Drip irrigation branch pipe 16. Tail cap switch 17.flushing valve 18. Fertilizer tank 19. Adjustable valve of fertilizer 20. Fertilizer applicator 21.Main pipe
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Components schematic for greenhouse micro dripping irrigation system
Related products
1. Dripper as equipment for dripping irrigation system
Labyrinth Adjustable Dripper / DT-2Compensating Dripper / DT-3Orifice-Type Emitter
DT-1Drop Lever Diverter / DT-4Labyrinth Adjustable Dripper / DT-5Button Compensated Drippers
2. Arrow Drops as equipment for
Description of dripping irrigation system
(1)The flow channel adopts maze-type turbulent channel.
(2) Reduce pressure effectively and drip exactly and evenly.
(3) The unique diversion disc of channel outlet help the water flowing along the plunger which can avoid the loss of water, soil and matrix.
Renderings of dripping irrigation system
Dripping irrigation of cantaloupe (dripping head)
3. Pressure Compensated Drippers as equipment for dripping irrigation system
Applications of dripping irrigation system
It is mainly used for all kinds of orchard. It comes with pressure compensation greases, which is suitable for lands with undulating terrain and long pipe laying length. It has excellent anti-clogging performance.
Features of dripping irrigation system
1. Two flow rate, 4.0 and 8.0/h.
2. Range of working pressure: 100-300KPA
3. Turbulence form anti-clogging , the water balance Anti-clogging with turbulence, and hydraulic discharge is balanced.
4. Pressure compensation grease can anti corrosion.
5. Grease dripping bonnet and diaphragm can be removed, which is easy to be maintained.
6. 4mm bar inlet can prevent debris entering into the system while starting the system.
7. Grease diaphragm seat can prevent water coming back to the dripper while turning off the system.
8. The grid of outlet can prevent insects.
9. The 4mm tube connected with the dripper can locate water point exactly.
Renderings of dripping irrigation system
Drip irrigation for grapes
Parameters of dripping irrigation system
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Flow rate (L/H) Flow (l/h)
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Flow—pressure relationship(Kpa)
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100Kpa
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150 Kpa
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200 Kpa
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250 Kpa
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300 Kpa
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4
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4.1
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4.1
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4.2
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4.2
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4.2
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8..
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7.9
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7.9
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8.0
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8.0
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8.0
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4. Connector as equipment of dripping irrigation system
Single Barb / Double Barb / Five-Water Separator / Pressure Balancer
5. for Micro Irrigation and Drop Irrigation Only
Exhaust Valve / 5960 Pressure Regulator / Dropper / Embedded-Style Drip Tape
6. Hole puncher
5453 Punch holes for dripping and micro installation / 5454 8mm punching and assisting irrigation and assisted installation / 5452 Micro irrigation punching installation / 5451 Punch holes for dripping micro irrigation and assisted and assist installation.
