CN206641120U - A kind of pressure compensating emitter - Google Patents

A kind of pressure compensating emitter Download PDF

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Publication number
CN206641120U
CN206641120U CN201720392511.1U CN201720392511U CN206641120U CN 206641120 U CN206641120 U CN 206641120U CN 201720392511 U CN201720392511 U CN 201720392511U CN 206641120 U CN206641120 U CN 206641120U
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China
Prior art keywords
water
path
film
lid
water inlet
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CN201720392511.1U
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Chinese (zh)
Inventor
邓颖
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Hainan Shunhe Water-Saving Technology Co Ltd
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Hainan Shunhe Water-Saving Technology Co Ltd
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Abstract

The utility model discloses a kind of pressure compensating emitter, including upper lid and lower cover, the upper lid is installed in the lower cover, delivery port is covered with described, water inlet is covered with described, the lower lid top wall is provided with water inlet labyrinth flow-path, the bottom wall of the upper lid is provided with water outlet labyrinth flow-path, the water inlet labyrinth flow-path and the water outlet labyrinth flow-path are interconnected by levels flow passage groove, film is installed between the water inlet labyrinth flow-path and the water outlet labyrinth flow-path, the film is flexible, the water inlet top is provided with counterflow-preventing retaining ring, the film by described in upper and lower Deformation control between counterflow-preventing retaining ring and the film current opening size.Gap length between film and counterflow-preventing retaining ring is controlled by hydraulic pressure above and below film, to ensure the constant of water-carrying capacity, such a structure can control the constant of bigger water-carrying capacity, suitable for large-scale irrigation system.

Description

A kind of pressure compensating emitter
Technical field
It the utility model is related to drip irrigation technique field, more particularly to a kind of pressure compensating emitter.
Background technology
Drip irrigation technique is by the water dropper on main, branch pipe and hollow billet, is often slowly dripped to soil under low pressure;It is A kind of irrigation system of filtered moisture, fertilizer or other chemical agents etc. is directly supplied to soil.It does not spray water or irrigation canals and ditches Flowing water, only allow water slowly to ooze, and enter soil in the presence of gravity and capillary.The water instilled near crop root, makes The soil in the main root area of crop often keeps optimal water status.This is a kind of advanced irrigation method.Water dropper is as drip irrigation skill Water and nutrient are mainly uniformly instilled soil by the key equipment of art, its effect, allow crop to absorb required nutrient and moisture.It is existing Some water droppers also have control flow constant, are not quite similar by the way of, but the stability of the water-carrying capacity of its control still has It is short of, it is impossible to control the constant of larger water-carrying capacity, be not suitable for more large-scale irrigation system.
Utility model content
In view of this, the utility model, which provides, conceives a kind of different pressure compensating emitter, by film and anti-reverse The size of retaining ring control water-carrying capacity is flowed, reaches the constant effect of water yield.
The technological means that the utility model uses is as follows:A kind of pressure compensating emitter, including upper lid and lower cover, it is described on Lid is installed in the lower cover, it is described on be covered with delivery port, be covered with water inlet under described, the lower lid top wall is provided with water inlet Labyrinth flow-path, the bottom wall of the upper lid are provided with water outlet labyrinth flow-path, and the water inlet labyrinth flow-path and the water outlet labyrinth flow-path lead to Cross levels flow passage groove to be interconnected, film be installed between the water inlet labyrinth flow-path and the water outlet labyrinth flow-path, The film is flexible, and the water inlet top is provided with counterflow-preventing retaining ring, and the film passes through described in upper and lower Deformation control The size of current opening between counterflow-preventing retaining ring and the film.
Preferably, the upper lid the upper lid, goes out horizontal stand and film and gone out with being horizontal stand at the film contact Form spill water chamber at the mouth of a river, it is described on cover it is described go out horizontal stand at be provided with horizontal minimum effluent trough, the minimum goes out Tank connects with the delivery port.
Preferably, the counterflow-preventing retaining ring is middle to the inclined annular slope in both sides.
Preferably, the lower cover bottom is provided with water inlet end filter pocket.
Preferably, the crown center of the upper lid is provided with the water outlet adapter cavity connected with the delivery port, the water outlet Cross chamber and be provided with aperturing support frame.
Using a kind of pressure compensating emitter provided by the utility model, film is controlled to be kept off with counterflow-preventing by hydraulic pressure Gap length between hydrosphere, to ensure the constant of water-carrying capacity;, can be with due to the setting of film though water dropper is working of plastics The pressure of water is largely absorbed, water inlet labyrinth flow-path and the water outlet labyrinth flow-path largely consume the energy of water Amount, is turbulent flow when passing water through, with energy dissipating, decompression, current stabilization, flushing, can ensure the stability of current, therefore this structure can To control the constant of bigger water-carrying capacity, suitable for large-scale irrigation system.
Brief description of the drawings
Fig. 1 is a kind of schematic cross-section of pressure compensating emitter provided by the utility model;
Fig. 2 is the elevational schematic view of upper lid in a kind of pressure compensating emitter provided by the utility model;
Fig. 3 is the schematic top plan view of lower cover in a kind of pressure compensating emitter provided by the utility model;
Fig. 4 is the partial enlarged drawing of counterflow-preventing retaining ring in Fig. 1;
Fig. 5 is the elevational schematic view of lower cover in a kind of pressure compensating emitter provided by the utility model;
Fig. 6 is a kind of pressure compensating emitter schematic top plan view provided by the utility model.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality It is new, it is not intended to limit the scope of the utility model.
As shown in Figure 1 to Figure 3, a kind of pressure compensating emitter, including upper lid 1 and lower cover 2, upper lid 1 is installed on lower cover 2 In, the upper lid 1 is provided with delivery port 3, and the lower cover 2 is provided with water inlet 4, and the roof of lower cover 2 is provided with water inlet labyrinth flow-path 5, The bottom wall of the upper lid 1 is provided with water outlet labyrinth flow-path 6, and the water inlet labyrinth flow-path 5 and the water outlet labyrinth flow-path 6 are by upper and lower Laminar flow road connectivity slot 8 is interconnected, and water inlet 4 connect with water inlet labyrinth flow-path 5, the labyrinth flow-path 5 and described of intaking Film 7 is installed, water inlet labyrinth flow-path 5 and the water outlet labyrinth flow-path 6 are concave shaped, water inlet fan between water outlet labyrinth flow-path 6 Palace runner 5 and the water outlet labyrinth flow-path 6 are brought into close contact with film 7, and water can only pass through levels runner toward water inlet labyrinth flow-path 5 Connectivity slot 8 flows into the water outlet labyrinth flow-path 6 by the way that the film 7 is flexible, and the top of water inlet 4 is provided with counterflow-preventing Retaining ring 41, the film 7 by between counterflow-preventing retaining ring 41 described in upper and lower Deformation control and institute's film 7 current opening it is big It is small.
In the case of the non-water flow of water inlet 4, counterflow-preventing retaining ring 41 is bonded with film 7, even if delivery port 3 has water Reflux, but because the hydraulic pressure of the top of film 7 is more than the hydraulic pressure of the lower section of film 7, therefore the hydraulic pressure of delivery port 3 withstands film 7 so that Film 7 is bonded with counterflow-preventing retaining ring 41 always, and then can play a part of preventing aqueous reflux, therefore the utility model can It is long to be embedded in underground use.
When water enters from water inlet 4, and reaches certain pressure, film 7 is up pushed up and opened by hydraulic pressure, now, film 7 with Counterflow-preventing retaining ring 41 separates the gap for forming flowing water entrance, and water is naturally flowed into water labyrinth flow-path 5, then along levels Flow passage groove 8 enters water outlet labyrinth flow-path 6, is finally flowed out from delivery port 3.When the hydraulic pressure of water outlet labyrinth flow-path 6 is more than water inlet During the hydraulic pressure of labyrinth flow-path 5, hydraulic pressure presses down film 7, and the gap between film 7 and counterflow-preventing retaining ring 41 diminishes, water from The influx of water inlet 4 is reduced, and thus, the gap length between film 7 and counterflow-preventing retaining ring 41 is controlled by hydraulic pressure, is come Ensure the constant of water-carrying capacity;Though water dropper is working of plastics, due to the setting of film 7, the pressure of water can be largely absorbed Power, water inlet labyrinth flow-path 5 and the water outlet labyrinth flow-path 6 largely consume the energy of water, are rapid when passing water through Stream, the stability of current with energy dissipating, decompression, current stabilization, flushing, can be ensured, therefore this structure can control bigger water Flow it is constant, suitable for large-scale irrigation system.
In one embodiment, the upper lid 1 and the contact position of film 7 are horizontal stand 9, the upper lid 1, go out level Platform 9 and film 7 form spill water chamber 91 at delivery port 3, the upper lid 1 it is described go out horizontal stand 9 at be provided with it is horizontal most Small effluent trough 92, the minimum effluent trough 92 connect with the delivery port 3.When minimum effluent trough 92 is for ensuring that hydraulic pressure deficiency Still there is the structure that water flows out from delivery port 3, the setting of spill water chamber 91 can further buffer the energy of current.In addition, The bottom of lower cover 2 is provided with water inlet end filter pocket 21, for stopping the drift sand or other particulate matter blocks intake at water inlet 4, prevents drift sand Or other particulate matter blocks enter pressure compensating emitter, drift sand or other particulate matter blocks are avoided to block water inlet 4 or delivery port 3 Problem.The crown center of the upper lid 1 is provided with the water outlet adapter cavity 31 connected with the delivery port 3, and water can be in water outlet transition Transition in chamber, it is connected with other water pipes, the water outlet adapter cavity 31 is provided with aperturing support frame 32, convenient to upper lid 1 When being punched, punch device is supported.
In one embodiment, as shown in figure 4, the counterflow-preventing retaining ring 41 to be middle to the inclined circular slanting in both sides Face.By inclined inclined-plane, further prevent drift sand from passing through, it is ensured that constant without being influenceed by drift sand, the increase water dropper of current Life-span.
In summary, using a kind of pressure compensating emitter of the present utility model, by hydraulic pressure come control film 7 with it is anti-reverse The gap length between retaining ring 41 is flowed, to ensure the constant of water-carrying capacity;Though water dropper is working of plastics, due to setting for film 7 Put, can largely absorb the pressure of water, water inlet labyrinth flow-path 5 and the water outlet labyrinth flow-path 6 largely disappear The energy of water has been consumed, has been turbulent flow when passing water through, the stability of current with energy dissipating, decompression, current stabilization, flushing, can have been ensured, therefore This structure can control the constant of bigger water-carrying capacity, suitable for large-scale irrigation system.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in Within the scope of protection.

Claims (5)

1. a kind of pressure compensating emitter, including upper lid and lower cover, the upper lid is installed in the lower cover, it is described on be covered with Delivery port, water inlet is covered with described, the lower lid top wall is provided with water inlet labyrinth flow-path, and the bottom wall of the upper lid is provided with water outlet Labyrinth flow-path, the water inlet labyrinth flow-path and the water outlet labyrinth flow-path are interconnected by levels flow passage groove, described Film is installed between water inlet labyrinth flow-path and the water outlet labyrinth flow-path, it is characterised in that the film is flexible, described Water inlet top is provided with counterflow-preventing retaining ring, and the film passes through counterflow-preventing retaining ring described in upper and lower Deformation control and the film Between current opening size.
2. a kind of pressure compensating emitter as claimed in claim 1, it is characterised in that at the upper lid and the film contact To go out horizontal stand, the upper lid, go out horizontal stand and film and form spill water chamber in water outlet, it is described on cover in the water outlet Horizontal minimum effluent trough is provided with platform, the minimum effluent trough connects with the delivery port.
A kind of 3. pressure compensating emitter as claimed in claim 1, it is characterised in that the counterflow-preventing retaining ring for it is middle to The inclined annular slope in both sides.
4. a kind of pressure compensating emitter as claimed in claim 1, it is characterised in that filtered provided with water inlet end the lower cover bottom Groove.
A kind of 5. pressure compensating emitter as claimed in claim 2, it is characterised in that the crown center of the upper lid be provided with The water outlet adapter cavity of the delivery port connection, the water outlet adapter cavity are provided with aperturing support frame.
CN201720392511.1U 2017-04-14 2017-04-14 A kind of pressure compensating emitter Active CN206641120U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720392511.1U CN206641120U (en) 2017-04-14 2017-04-14 A kind of pressure compensating emitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720392511.1U CN206641120U (en) 2017-04-14 2017-04-14 A kind of pressure compensating emitter

Publications (1)

Publication Number Publication Date
CN206641120U true CN206641120U (en) 2017-11-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720392511.1U Active CN206641120U (en) 2017-04-14 2017-04-14 A kind of pressure compensating emitter

Country Status (1)

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CN (1) CN206641120U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108812221A (en) * 2018-07-06 2018-11-16 孙宝胜 A kind of pressure-compensating water dropper
CN108901770A (en) * 2018-09-11 2018-11-30 华北水利水电大学 Reaming booster-type combines dropper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108812221A (en) * 2018-07-06 2018-11-16 孙宝胜 A kind of pressure-compensating water dropper
CN108812221B (en) * 2018-07-06 2021-05-25 孙宝胜 Pressure compensation water dropper
CN108901770A (en) * 2018-09-11 2018-11-30 华北水利水电大学 Reaming booster-type combines dropper

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