CN2484738Y - Multi-opening shunt device with pressure compensation - Google Patents

Multi-opening shunt device with pressure compensation Download PDF

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Publication number
CN2484738Y
CN2484738Y CN 01227407 CN01227407U CN2484738Y CN 2484738 Y CN2484738 Y CN 2484738Y CN 01227407 CN01227407 CN 01227407 CN 01227407 U CN01227407 U CN 01227407U CN 2484738 Y CN2484738 Y CN 2484738Y
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CN
China
Prior art keywords
pressure compensation
shunt
cover
groove
matches
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 01227407
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Chinese (zh)
Inventor
郑耀泉
Original Assignee
郑耀泉
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Publication date
Application filed by 郑耀泉 filed Critical 郑耀泉
Priority to CN 01227407 priority Critical patent/CN2484738Y/en
Application granted granted Critical
Publication of CN2484738Y publication Critical patent/CN2484738Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Polystomatous shunt with pressure compensation belongs to irrigation technical field. The technical proposal is to provide a shunt with pressure compensation featuring simple structure and high credibility which includes water inlet1, the coping 6 which matches the foundation 2, the elastic membrane3 between the foundation 2 and the coping 6. The characteristics of the shunt is that the copping 6 has groove9 which matches the elastic membrane3 forming a maze stream 4; the top of the coping 6 has a plurality of shunt 5 which is of horizontal position, and the shape of the groove 9 is indented. The device irrigates evenly and is of low construction cost.

Description

Many mouthfuls of current dividers of pressure compensation
The utility model relates to a kind of pressure compensation current divider that is used for irrigation system, belongs to the irrigation technique field.
Water-saving irrigation has great importance in China, and the tubelet effluent irrigation technique is a kind of water-saving irrigation technique of suitable China's national situation, and it has: irrigator adopts the super large runner, and anti-blocking is strong, purification of water quality requires low, advantages such as operation is simple and easy, water-saving saving of labor.In order to improve the efficient of this system, between the import of tubule irrigator and transmission ﹠ distribution water hollow billet, a kind of flow straightener has been installed, system's design is simplified greatly, but the structure of this kind flow straightener is comparatively complicated, and for single port goes out stream, the field consumption is many, so system cost increases.
The purpose of this utility model is to provide a kind of pressure compensation current divider of simple in structure, dependable performance, and this current divider can substitute existing flow straightener effectively, reduces the cost of tubelet effluent technological system.
Comprise water inlet 1, the top cover 6 that matches with base 2, flexible sheet 3 between base 2 and top cover 6 in order to reach technical scheme that the purpose of this utility model takes, it is characterized in that, top cover 6 is provided with groove 9, and this groove 9 matches with flexible sheet 3 and forms labyrinth flow-path 4;
The top of top cover 6 is provided with several shunt heads 5, and the outlet flow of shunt head 5 is for being horizontally disposed with;
Groove 9 be shaped as zigzag.
Because the utility model has adopted the big runner of plane labyrinth type (wide, the degree of depth greater than 2 millimeters) to match with flexible sheet, forms pressure compensation effect efficiently, reduces the fluidised form index of irrigator greatly, thereby has improved uniformity of irrigation water appilcation, has reduced engineering cost; Replace a hole of existing flow straightener to go out stream with many mouthfuls of shuntings, making a current divider can be many crops supplies water, significantly reduce the quantity of system's flow straightener, thereby significantly reduced engineering cost, and enlarged the scope of application of tubelet effluent irrigation technique, except that the water-saving irrigation that is used for open country fruit tree and other economic crops, also can be used for the irrigation of greenhouse flowers and vegetables, melon and fruit soilless culture, the supply of nutrient solution etc., and be applicable to the flower bed irrigation of various types.
Fig. 1 is the structural representation of many mouthfuls of current dividers of the utility model pressure compensation;
Fig. 2 is the top cover upward view of many mouthfuls of current dividers of the utility model pressure compensation;
Fig. 3 is the capping top view of many mouthfuls of current dividers of the utility model pressure compensation.
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1,1 is water inlet, and 2 is base, and 3 is diaphragm, and 4 is labyrinth flow-path, and 5 is shunt head, and 6 is top cover, and 7 is diffluence room, and 8 is pressure-compensating chamber.As shown in Figure 2,9 for being located at the zigzag groove on the top cover 6, and 10 is base side direction delivery port, and 11 is the top cover water inlet, and 12 is to cross the water crack between base and top cover, and 13 is the top cover water inlet.
The course of work of many mouthfuls of current dividers of this pressure compensation is: current enter pressure-compensating chamber 8 from transmission ﹠ distribution water hollow billet by water inlet 1, in the indoor formation hydrostatic pressing of pressure compensation, current enter through base side direction delivery port 10 and cross water crack 12 between base and top cover, then, enter labyrinth flow-path 4 by top cover water inlet 13, flow into diffluence room 7, distribute to shunt head 5 equably.Because pressure compensation is indoor to be hydrostatic pressing, be moving hydraulic pressure in the labyrinth flow-path, the energy consumption that causes in the flow process in addition, make the pressure of the indoor pressure of pressure compensation in labyrinth flow-path and the diffluence room, be that the flexible sheet two sides forms pressure reduction, then elastic membrane distortion is adjacent to labyrinth flow-path and diffluence room.Capillary pressure is big more, and pressure reduction is big more, and under the effect of flexible sheet, the cross-section of river of labyrinth flow-path and diffluence room is just more little, and vice versa.Thereby even capillary pressure changes, it is stable that the flow of this current divider still can keep.Simultaneously,, strengthened the turbulent fluctuation of current greatly, improved effect of energy dissipation owing to adopted the plane labyrinth runner.Like this, under the double action of flexible sheet and plane labyrinth flow-path, significantly reduce the fluidised form index of current divider, kept stable outflow.

Claims (3)

1, many mouthfuls of current dividers of a kind of pressure compensation comprise water inlet (1), the top cover (6) that matches with base (2),
Be positioned at the flexible sheet (3) between base (2) and the top cover (6), it is characterized in that, on the top cover (6)
Be provided with groove (9), this groove (9) matches with flexible sheet (3) and forms labyrinth flow-path (4).
2, many mouthfuls of current dividers of pressure compensation according to claim 1 is characterized in that, the top of top cover (6)
Be provided with several shunt heads (5), the outlet flow of shunt head (5) is for being horizontally disposed with.
3, many mouthfuls of current dividers of pressure compensation according to claim 1 is characterized in that, the shape of groove (9)
Be zigzag.
CN 01227407 2001-06-19 2001-06-19 Multi-opening shunt device with pressure compensation Expired - Fee Related CN2484738Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01227407 CN2484738Y (en) 2001-06-19 2001-06-19 Multi-opening shunt device with pressure compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01227407 CN2484738Y (en) 2001-06-19 2001-06-19 Multi-opening shunt device with pressure compensation

Publications (1)

Publication Number Publication Date
CN2484738Y true CN2484738Y (en) 2002-04-10

Family

ID=33642856

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01227407 Expired - Fee Related CN2484738Y (en) 2001-06-19 2001-06-19 Multi-opening shunt device with pressure compensation

Country Status (1)

Country Link
CN (1) CN2484738Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100376147C (en) * 2004-12-06 2008-03-26 华中科技大学 Sheet ambient-flow irrigator
CN102550368A (en) * 2011-12-12 2012-07-11 西北农林科技大学 Underground pressure bubbler root irrigation device
CN110367090A (en) * 2019-08-15 2019-10-25 三峡大学 Streamlined plug-in type pressure compensation douche

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100376147C (en) * 2004-12-06 2008-03-26 华中科技大学 Sheet ambient-flow irrigator
CN102550368A (en) * 2011-12-12 2012-07-11 西北农林科技大学 Underground pressure bubbler root irrigation device
CN110367090A (en) * 2019-08-15 2019-10-25 三峡大学 Streamlined plug-in type pressure compensation douche
CN110367090B (en) * 2019-08-15 2021-08-31 三峡大学 Streamline plug-in pressure compensation irrigator

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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