CN201337965Y

CN201337965Y - Flow passage of triangular annular drop-irrigation device

Info

Publication number: CN201337965Y
Application number: CNU2008202150094U
Authority: CN
Inventors: 王新坤
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2008-12-02
Filing date: 2008-12-02
Publication date: 2009-11-04
Anticipated expiration: 2018-12-02

Abstract

The utility model discloses a flow passage of a triangular annular drop-irrigation device; a flow passage unit is formed by a triangular annular cylinder channel formed by sheathing two triangular flat cylinders, and a plurality of the flow passage units are connected into one body for forming the flow passage of the triangular annular drop-irrigation device. In the flow passage of the drop-irrigation device, the overcurrent section is large, and the flow passage has the characteristics of diffluence and confluence, a special triangular toothed structure enhances the blockage resistance and irrigating uniformity of the drop-irrigation device; the drop-irrigation device with various structures can be constructed by the utility model, and the flow passage of the triangular annular drop-irrigation device can be widely applied to the irrigating requirements of large fields, vegetables and the industry of planting forest or fruit trees.

Description

Triangular circulation drip irrigator flow passage

Technical field

The utility model belongs to the agricultural water-saving irrigation technical field, relates to the drip emitter runner, is specifically related to triangular circulation drip irrigator flow passage.

Background technology

Drip irrigation is as internationally recognized a kind of high-efficiency water-saving irrigation technique, has to pour water evenly, high-efficiency water-saving joint fertilizer, increasing both production and income, be convenient to advantage such as management, by the countries in the world extensive use.Douche is the core component of drip irrigation technique, and factors such as the structure of its runner, size have determined it to go out hydraulic performances such as stream stability, anti-stifled ability, to having conclusive effect in cost, the energy consumption of drip irrigation system, the quality of pouring water and service life etc.Factors such as the structure of runner, size have determined it to go out hydraulic performances such as stream stability, anti-stifled ability, and 90% of the loss of flood peak all occurs in the tooth-shape structure place of runner.The structure of existing drip emitter runner is the runner based on various labyrinth structure forms mostly, and the version that has runner both at home and abroad now, specification etc. are improved, and develops the drip emitter based on labyrinth flow-path then.Douche flow passage structure form presents the situation of the labyrinth shape runner of single-mode substantially, has restricted the diversification development and application of drip emitter product, is difficult to adapt to the development of drip irrigation technique and apply.

The trend of drip emitter runner development should be to make up good flow passage structure, reduces the fluidised form index, improves douche and goes out to flow stability and uniformity; Increase width of flow path, degree of depth equal section size, dwindle flow channel length, increase the speed and the turbulence level of current, strengthen the anti-stifled ability of runner; Reduce douche operating pressure and cost simultaneously, reduce the drip irrigation system energy and consume and the engineering input.

Summary of the invention

The purpose of this utility model is to provide a kind of can make the current in the drip emitter runner produce strong turbulent fluctuation, and flow section is big, and anti-stifled ability is strong, and uniform triangular circulation drip irrigator flow passage drips.

The technical solution that the utility model is taked is that a kind of triangular circulation drip irrigator flow passage is characterized in that the drip emitter runner is is vertically connected and composed by plural triangle circulation unit; Each triangle circulation unit is combined by flat cylinder passage of big triangle and built-in wherein the flat cylinder of little triangle with circulation effect.

Each triangle circulation unit is the external boundary that the flat cylinder of leg-of-mutton triangle constitutes flow passage unit by a plane projection, in the flat column body of triangle, the flat cylinder of little triangle of equidirectional placement forms the inner boundary of flow passage unit, two vary in size, formed triangular duct constitutes triangular circulation drip irrigator flow passage between the flat cylinder of triangle that direction is an identical unit; The entrance point of a unit is connected with the port of export of another unit, and several unit are in turn connected into and are integral body, constitutes triangular circulation drip irrigator flow passage.

Above-mentioned triangular circulation drip irrigator flow passage, the physical dimension of each flow passage unit can be identical, also can be inequality.Large and small when inequality when the size of flow passage unit, replace arrangement according to 1 large-size units and 1 small size unit, perhaps replace arrangement according to several large-size units and some small sizes unit.

Above-mentioned triangular circulation drip irrigator flow passage, the import caliber that it is characterized in that each flow passage unit can equate with the outlet caliber, also can be the import caliber greater than the outlet caliber, perhaps the import caliber is less than the outlet caliber.

Above-mentioned triangular circulation drip irrigator flow passage, the plane projection that it is characterized in that flow passage unit is little, big, two mutually identical triangles of orientation, little triangle is positioned at big triangle inside, the triangular ring passage of formation rule between two triangles.

Adopt the triangular circulation drip irrigator flow passage of the utility model structure, it is characterized in that the characteristic that vertical section has periodic sudden enlargement and dwindles suddenly, the characteristic that has shunting simultaneously and conflux, the flow channels of form sudden contraction, sudden expansion, shunting and conflux also is distributed with the tooth-shape structure of vertical arrangement in passage; Current flow around triangle in passage, in the shunting of flow passage unit import department, conflux in the flow passage unit exit, make current form strong turbulent fluctuation, increase the anti-blockage capability of douche; Vertically the tooth-shape structure of arranging has guaranteed that douche has effect of energy dissipation efficiently, helps reducing the fluidised form index of douche, and it is more even to drip; Triangular circulation drip irrigator flow passage is compared with douche runner of the same type, and the cross-section of river significantly increases, and is easy to passing through of impurity in the water, has further improved the anti-blockage capability of douche.The utility model can be constructed the drip emitter of multiple version, can extensively be adapted to the demand that field crop, vegetables and industry of planting forest or fruit tress etc. are irrigated.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the perspective view of the utility model embodiment 1.

Fig. 2 is the plane projection schematic diagram of the flow passage unit of Fig. 1.

Fig. 3 is the perspective view of the utility model embodiment 2.

Fig. 4 is the plane projection schematic diagram of the flow passage unit of Fig. 3.

The flat cylinder of 1. big triangles among the figure; 2. the flat cylinder of the little triangle of circulation; 3. flow passage unit import; 4. shunting zone; 5. flow passage unit external boundary; 6. flow passage unit inner boundary; 7. doab; 8. flow passage unit outlet.

The specific embodiment

Embodiment 1:

With reference to Fig. 1 and Fig. 2, be that leg-of-mutton flow passage unit external boundary 5, plane projection are that leg-of-mutton flow passage unit inner boundary 6, flow passage unit export 8 formed regular triangular ring passages and constitute a flow passage unit by flow passage unit import 3, plane projection.Flow passage unit 3 imports are connected with another flow passage unit outlet 8, and several unit are in turn connected into and are integral body, constitute the runner of the triangular ring drip emitter that longitudinally alternately dwindles and amplify.The inlet diameter of same flow passage unit can equate with outlet diameter, also can be unequal; The size of each flow passage unit can be identical, also can be inequality; Large and small when inequality when the size of flow passage unit, replace arrangement according to 1 large-size units and 1 small size unit, perhaps replace arrangement according to several large-size units and some small sizes unit.

Current flow through runner section shunting, conflux and during the tooth-shape structure place, huge change takes place for the area of flow section, flow and velocity flow profile, causes flow turbulence and energy loss, has guaranteed that runner has high efficiency energy dissipating ability.The big section that runner had is crossed aquaporin, has strengthened the solidfied material transport capability of runner, has guaranteed that runner has good performance of anti-blockage.

Embodiment 2:

With reference to Fig. 3 and Fig. 4, be the flow passage unit reversed arrangement with the difference of embodiment 1.

Claims

1, a kind of triangular circulation drip irrigator flow passage is characterized in that: the drip emitter runner is is vertically connected and composed by plural triangle circulation unit; Each triangle circulation unit is combined by flat cylinder passage of big triangle and built-in wherein the flat cylinder of little triangle with circulation effect.

2, the described a kind of triangular circulation drip irrigator flow passage of claim 1, it is characterized in that: the plane projection of flow passage unit is little, big, two mutually identical triangles of orientation, little triangle is positioned at big triangle inside, the triangular ring passage of formation rule between two triangles.

3, the described a kind of triangular circulation drip irrigator flow passage of claim 1, it is characterized in that: the physical dimension of each flow passage unit is identical or inequality, large and small when inequality when the size of flow passage unit, replace according to 1 large-size units and 1 small size unit and to arrange or replace arrangement according to several large-size units and some small sizes unit.

4, the described a kind of triangular circulation drip irrigator flow passage of claim 1 is characterized in that: the import caliber of each flow passage unit equate with the outlet caliber or the import caliber greater than outlet caliber or import caliber less than exporting caliber.