CN202524845U - Pressure-compensated dripper for subsurface drip irrigation - Google Patents
Pressure-compensated dripper for subsurface drip irrigation Download PDFInfo
- Publication number
- CN202524845U CN202524845U CN 201220045417 CN201220045417U CN202524845U CN 202524845 U CN202524845 U CN 202524845U CN 201220045417 CN201220045417 CN 201220045417 CN 201220045417 U CN201220045417 U CN 201220045417U CN 202524845 U CN202524845 U CN 202524845U
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- Prior art keywords
- dripper
- pressure
- drip irrigation
- water
- water dropper
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Abstract
The utility model relates to a pressure-compensated dripper for subsurface drip irrigation. The pressure-compensated dripper comprises a silicon sheet positioned between an upper cover and a lower cover of the dripper, wherein the upper cover of the dripper is provided with a flow passage with a water outlet at one end, and the lower cover of the dripper is provided with a water inlet. The pressure-compensated dripper for subsurface drip irrigation is characterized in that a copper sheet is arranged at the water outlet. According to the utility model, an action principle of damage of heavy metal stress on plant is utilized, and copper acts on a root system to restrain growth of the root system, so that the dripper achieves a purpose of being protected from being blocked by the root system, and has good pressure compensation property and water outlet uniformity.
Description
Technical field
The utility model relates to the water dropper in the drip irrigation equipment, relates in particular to a kind of underground drip irrigation pressure compensating emitter.
Background technology
At present, underground drip irrigation is one of typical application form of micro irrigation technology.Less to the soil structure disturbance in the process owing to pour water, help keeping the root of the crop layer penetrating environmental condition of loosening, and can reduce native face evaporation loss, drip irrigation technique has tangible water-saving and yield-increasing benefit under the old place.The normal problem that occurs of underground drip irrigation mainly is the even inadequately along the journey water yield of it, and local water yield general far away apart from the water source is less; Because the growth of plant roots has the hydrotropism, cause root to invade the water dropper hole easily and cause obstruction.For guarantee under the different water droppers each water dropper in the unit interval amount of dripping basically identical and anti-root invade technology, people develop multi-form compensation water dropper at present.When hydraulic pressure was big, water velocity was fast, but runner water inlet sectional area is little; When hydraulic pressure hour, water velocity is slow, but runner water inlet sectional area is relatively large, so just can effectively guarantee in water dropper the drip amount of different water dropper in the unit interval basic identical, thereby realize the compensation of pressure and flow.How to prevent that plant roots from invading that to result in blockage be the difficult point and the focus of Chinese scholars research always.
Summary of the invention
The utility model technical problem to be solved provides a kind of have better pressure compensation performance, anti-root is invaded, the even performance of water outlet is good underground drip irrigation pressure compensating emitter.
For addressing the above problem, the described a kind of underground drip irrigation pressure compensating emitter of the utility model comprises the silica gel sheet between water dropper loam cake and water dropper lower cover; Be covered with the runner that an end is provided with delivery port on the said water dropper; Be covered with water inlet under the said water dropper, it is characterized in that: said delivery port place is provided with copper sheet.
The utility model compared with prior art has the following advantages:
1, owing to be provided with copper sheet in the utility model, and the copper required trace element that is plant vital activity, every plant species to the demand of copper all in certain scope; Low concentration copper promotes plant growing, and high concentration copper causes certain injury to plant, shows as inhibitory action; Therefore; Utilize the action principle of heavy metal stress, copper is acted on the growth that root system suppresses root system, play the purpose that the protection water dropper is not stopped up by root system plant injury.
In the growing process, the secretion of the different parts of root system or some inorganic ions of exudation and organic compound, these materials are referred to as root exudates.Contain a large amount of multiple organic acids in the secretion, organic acid and copper sheet haptoreaction discharge copper ion.Copper sheet water dropper operation principle is that root system of plant is secreted organic acid naturally, and organic acid can make copper sheet isolate copper ion from contact-making surface.Tip of a root growth receives the inhibitory action of copper ion, stops the root growth of invading water dropper.Tip of a root copper ion can not influence the growth at other position of plant, lets other part healthy growth of plant.
2, owing to be provided with the silica gel sheet in the utility model, and the silica gel sheet has certain elasticity, therefore; When hydraulic pressure changes; Regulate flow through the runner effect between silica gel sheet and the water dropper loam cake, promptly when hydraulic pressure increased, the active force of silica gel sheet and runner was big; Flow area reduces, and water yield reduces; When hydraulic pressure reduced, flow area increased, and outflow increases; Thereby guarantee that the even performance of water outlet is good.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Fig. 1 is the installation diagram of the utility model.
Among the figure: 1-water dropper lower cover, 2-water inlet, 3-silica gel sheet, 4-water dropper loam cake, 5-delivery port, 6-runner, 7-copper sheet.
Embodiment
As shown in Figure 1, a kind of underground drip irrigation pressure compensating emitter comprises the silica gel sheet 3 between water dropper loam cake 4 and water dropper lower cover 1.Water dropper loam cake 4 is provided with the runner 6 that an end is provided with delivery port 5, and delivery port 5 places are provided with copper sheet 7; Water dropper lower cover 1 is provided with water inlet 2.
Operation principle: current get into water dropper through the water inlet in the water dropper lower cover 12, behind the runner 6 through water dropper loam cake 4, are flowed out by delivery port 5.
Claims (1)
1. a underground drip irrigation pressure compensating emitter comprises the silica gel sheet (3) that is positioned between water dropper loam cake (4) and the water dropper lower cover (1); Said water dropper loam cake (4) is provided with the runner (6) that an end is provided with delivery port (5); Said water dropper lower cover (1) is provided with water inlet (2), it is characterized in that: said delivery port (5) locates to be provided with copper sheet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045417 CN202524845U (en) | 2012-02-13 | 2012-02-13 | Pressure-compensated dripper for subsurface drip irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220045417 CN202524845U (en) | 2012-02-13 | 2012-02-13 | Pressure-compensated dripper for subsurface drip irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524845U true CN202524845U (en) | 2012-11-14 |
Family
ID=47126059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220045417 Expired - Lifetime CN202524845U (en) | 2012-02-13 | 2012-02-13 | Pressure-compensated dripper for subsurface drip irrigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524845U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126485A (en) * | 2014-08-01 | 2014-11-05 | 武志生 | Anti-blocking drip irrigation pipe and manufacturing method |
| CN105165553A (en) * | 2015-07-31 | 2015-12-23 | 大禹节水（天津）有限公司 | Irrigation emitter and drip irrigation belt/pipe thereof |
| CN106171848A (en) * | 2016-06-22 | 2016-12-07 | 青岛新大成塑料机械有限公司 | Interior inserted-blade type pressure-compensating water dropper, drip irrigation zone and drip irrigation method |
| CN106332736A (en) * | 2016-08-25 | 2017-01-18 | 大禹节水（天津）有限公司 | Anti-blocking flow regulation drip emitter |
-
2012
- 2012-02-13 CN CN 201220045417 patent/CN202524845U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126485A (en) * | 2014-08-01 | 2014-11-05 | 武志生 | Anti-blocking drip irrigation pipe and manufacturing method |
| CN104126485B (en) * | 2014-08-01 | 2016-08-31 | 武志生 | A kind of anti-block dripping pipe and preparation method |
| CN105165553A (en) * | 2015-07-31 | 2015-12-23 | 大禹节水（天津）有限公司 | Irrigation emitter and drip irrigation belt/pipe thereof |
| CN106171848A (en) * | 2016-06-22 | 2016-12-07 | 青岛新大成塑料机械有限公司 | Interior inserted-blade type pressure-compensating water dropper, drip irrigation zone and drip irrigation method |
| CN106171848B (en) * | 2016-06-22 | 2022-05-24 | 青岛新大成塑料机械有限公司 | Embedded piece type pressure compensation water dropper, drip irrigation tape and drip irrigation method |
| CN106332736A (en) * | 2016-08-25 | 2017-01-18 | 大禹节水（天津）有限公司 | Anti-blocking flow regulation drip emitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |