CN216722443U - Drip irrigation emitter based on Tesla valve principle - Google Patents
Drip irrigation emitter based on Tesla valve principle Download PDFInfo
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- CN216722443U CN216722443U CN202122419196.6U CN202122419196U CN216722443U CN 216722443 U CN216722443 U CN 216722443U CN 202122419196 U CN202122419196 U CN 202122419196U CN 216722443 U CN216722443 U CN 216722443U
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Abstract
The utility model is suitable for the technical field of drip irrigation emitter structures, and provides a drip irrigation emitter based on the Tesla valve principle, which comprises an emitter pipeline, wherein the pipe wall of the emitter pipeline is provided with a direction identification groove, the length direction of the direction identification groove is consistent with the axial direction of the emitter pipeline, a baffle is arranged in the direction identification groove, and a Tesla valve flow channel for reducing the water flow speed is arranged in the baffle; main stream is divided into A thigh rivers and B thigh rivers in the enlargement portion position department of valve clack, B thigh rivers flow in the tesla valve sprue, A thigh rivers flow in the tesla valve runner, and A thigh rivers assemble with B thigh rivers after the gyration of concave part department, offset the original water pressure of B thigh rivers, slow down the speed of B thigh rivers, rivers pass through a valve clack at every turn promptly, water pressure all can reduce once, the corresponding speed that slows down of water velocity, export flow in the certain time reduces thereupon, can reach the ideal export flow of final rivers through the quantity that the valve clack set up.
Description
Technical Field
The utility model belongs to the technical field of drip irrigation emitter structures, and particularly relates to a drip irrigation emitter based on the Tesla valve principle.
Background
Drip irrigation is local irrigation by delivering water to the roots of crops through orifices or drippers on capillary tubes with the diameter of about 10mm by using plastic pipelines, and is the most effective water-saving irrigation mode in arid water-deficient areas at present, and the water utilization rate can reach 95%. Compared with spray irrigation, the drip irrigation has higher water-saving and yield-increasing effects, can be combined with fertilization, improves the fertilizer efficiency by more than one time, is suitable for irrigation of fruit trees, vegetables, cash crops and greenhouses, and can also be used for irrigation of field crops in arid water-deficient places.
The traditional drip irrigation emitter generally adopts a sawtooth labyrinth flow channel form for energy dissipation, the processing requirement of the sawtooth flow channel is particularly high, and the flow is greatly influenced by slight deviation of the size.
The Tesla valve, also called valve catheter, is a passive check valve with fixed geometry, without valve, can realize one-way water flow blocking effect, the catheter has no resistance to fluid passing in one direction, but generates great blocking effect to the fluid in the opposite direction, slows down the water pressure and water flow speed of the fluid in the opposite direction, and reduces the flow of the fluid in the opposite direction within a certain time. The design utilizes the principle of a Tesla valve to replace the energy dissipation effect of a sawtooth type labyrinth flow passage, and is simple in structural design and easy to process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a drip irrigation emitter based on the Tesla valve principle, and aims to solve the problems of reducing the water flow speed of water flow in the drip irrigation emitter and reducing the flow rate of the water flow within a certain time.
The utility model is realized in such a way, the drip irrigation emitter based on the Tesla valve principle comprises an emitter pipeline, wherein a direction identification groove is arranged on the pipe wall of the emitter pipeline, the length direction of the direction identification groove is consistent with the axial direction of the emitter pipeline, a baffle is arranged in the direction identification groove, a Tesla valve flow passage used for slowing down the water flow speed is arranged in the baffle, a water inlet filtering window is arranged at the inlet of the Tesla valve flow passage, a water outlet position is arranged at the outlet of the Tesla valve flow passage, an emitter water outlet hole is arranged in the water outlet position, and the water inlet filtering window and the water outlet position are also arranged in the baffle.
Preferably, a plurality of valve flaps are arranged in the tesla valve flow passage, the valve flaps divide the tesla valve flow passage into a tesla valve main flow passage and a tesla valve auxiliary flow passage, and the bifurcation of the tesla valve main flow passage and the tesla valve auxiliary flow passage is an enlarged part on the valve flaps.
Preferably, the water flow entering the inlet of the tesla valve flow passage is a main water flow, and the main water flow is divided into a water flow and B water flow at the position of the enlarged part.
Preferably, the a water flows into the tesla valve secondary flow passage, the B water flows into the tesla valve primary flow passage, and the a water and the B water converge into the primary water at an outlet of the tesla valve flow passage.
Preferably, the position where the a stream of water turns in the tesla valve secondary flow passage is a concave portion, the position where the a stream of water and the B stream of water meet again is a protruding portion, and the concave portion and the protruding portion are both arranged on the baffle.
Preferably, a plurality of drippers are arranged at the protruding positions of the direction identification grooves and are arranged outside the baffle.
Compared with the prior art, the utility model has the beneficial effects that: according to the drip irrigation emitter based on the Tesla valve principle, main water flow is divided into the A water flow and the B water flow at the position of the expansion portion of the valve flap, the B water flow flows into the main runner of the Tesla valve, the A water flow flows into the auxiliary runner of the Tesla valve, the A water flow is converged with the B water flow after rotating at the concave portion, original water pressure of the B water flow is offset, the speed of the B water flow is reduced, namely the water flow pressure is reduced once when the water flow passes through one valve flap every time, the water flow speed is correspondingly reduced, outlet flow within a certain time is reduced, and the ideal outlet flow of the final water flow can be achieved through the number of the valve flaps.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of a Tesla valve flow passage according to the present invention;
FIG. 3 is a schematic side view of the present invention;
in the figure: 1. an emitter tube; 2. a dripper; 3. a water inlet filter window; 4. a Tesla valve flow channel; 5. a valve clack; 6. a water outlet position; 7. a direction identification slot; 8. a water outlet of the douche; 9. a main water flow; 10. a, water flow; 11. b, water flow; 12. an enlarging portion; 13. a recess; 14. a protrusion; 15. a main flow passage of a Tesla valve; 16. a Tesla valve secondary flow passage; 17. and a baffle plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a drip irrigation emitter based on tesla valve principle, including emitter pipeline 1, be provided with direction recognition groove 7 on emitter pipeline 1's the pipe wall, the length direction of direction recognition groove 7 is unanimous with emitter pipeline 1's axial direction, and be provided with baffle 17 in the direction recognition groove 7, be provided with tesla valve flow path 4 that is used for slowing down water velocity in the baffle 17, the entrance of tesla valve flow path 4 is provided with into water and filters window 3, and tesla valve flow path 4 exit is provided with out water position 6, it has emitter apopore 8 to open in the play water position 6, it filters window 3 and the play water position 6 and sets up in baffle 17 equally to advance water.
The irrigator pipeline 1 is made of polyethylene material, the wall thickness is 0.15mm-1.5mm, the inner wall can be adhered with the drippers 2, and water flow of the drippers 2 can be guided out of the pipeline to irrigate crops; the direction identification groove 7 is convenient for the production douche pipeline 1 to identify the direction of the dripper 2; the water inlet filtering window 3 is a grid with the thickness of 0.4-0.6mm, so that impurities are prevented from entering the Tesla valve flow passage 4; the tesla valve flow channel 4 is designed according to the tesla valve principle.
Further, a plurality of valve flaps 5 are arranged in the tesla valve flow passage 4, the valve flaps 5 divide the tesla valve flow passage 4 into a tesla valve main flow passage 15 and a tesla valve auxiliary flow passage 16, and the branch openings of the tesla valve main flow passage 15 and the tesla valve auxiliary flow passage 16 are provided with an expansion part 12 at the position on the valve flaps 5.
The arrangement of the valve flap 5 causes the branch of the tesla valve flow passage 4, the area through which the main water flow 9 flows is called the tesla valve main flow passage 15, and the other passage is called the tesla valve auxiliary flow passage 16; the convex part of the valve clack 5 is an enlarged part 12, and the main water flow 9 is divided into two water flows just by the enlarged part 12.
Specifically, the water flow entering the inlet of the tesla valve flow passage 4 is a main water flow 9, and the main water flow 9 is divided into a water flow 10 and B water flow 11 at the position of the enlarged portion 12.
The two streams divided by the main stream 9 are a stream 10 and B stream 11, respectively, the B stream 11 is circulated along the main channel 15 of the tesla valve, and the a stream 10 is circulated along the auxiliary channel 16 of the tesla valve.
Generally, the a stream 10 flows into the tesla valve secondary channel 16, the B stream 11 flows into the tesla valve primary channel 15, and the a stream 10 and the B stream 11 converge into the primary stream 9 at the outlet of the tesla valve channel 4.
The position where the a flow 10 turns in the tesla valve sub-channel 16 is the concave portion 13, the position where the a flow 10 and the B flow 11 join again is the convex portion 14, and both the concave portion 13 and the convex portion 14 are provided on the baffle 17.
The A-branch water flow 10 in the Tesla valve auxiliary flow passage 16 rotates and flows under the action of the concave part 13 and the protruding part 14, and converges with the B-branch water flow 11 again at the position of the protruding part 14, at the moment, the rotating A-branch water flow 10 impacts the B-branch water flow 11 flowing along the Tesla valve main flow passage 15, the water pressure of the B-branch water flow 11 is reduced, and the flowing speed of the B-branch water flow 11 is slowed down;
the flowing speed of the water flow is reduced, the flow rate of the water flow in a certain time is correspondingly reduced, and the valve clacks 5 with corresponding quantity can be arranged according to the required water flow rate, so that the water flow speed in the flow passage 4 of the Tesla valve is continuously reduced, and the target effect is finally achieved.
In addition, a plurality of drippers 2 are arranged at the protruding positions of the direction recognition grooves 7, and the drippers 2 are arranged outside the baffle 17.
The dripper 2 is made of the same material as the emitter pipeline 1, is adhered to the inner wall of the emitter pipeline 1, is internally provided with an inlet, a flow passage and an outlet, and mainly dissipates pressure water to achieve the required flow.
The working principle and the using process of the utility model are as follows: after the water irrigator is installed, the valve flaps 5 with the corresponding quantity are arranged according to the required water flow outlet flow, the main water flow 9 in the irrigator pipeline 1 enters the Tesla valve flow passage 4 after being filtered by the water inlet filtering window 3, under the separation action of the expansion part 12 on the valve flap 5, the main water flow 9 is divided into an A water flow 10 and a B water flow 11, the B water flow 11 continues to flow along the Tesla valve main flow passage 15, the A water flow 10 flows along the Tesla valve auxiliary flow passage 16, and flows in a rotating way under the action of the concave part 13 and the convex part 14, and is converged with the B water flow 11 at the position of the convex part 14, the rotating A water flow 10 impacts the B water flow 11, so that the water pressure of the B water flow 11 is reduced, and the water flow speed of the B water flow 11 is slowed down, namely, after the main water flow 9 passes through the first valve flap 5, the water pressure is reduced, and the flow speed is slowed down;
the main water flow 9 reaches the ideal water flow speed after passing through all the valve clacks 5, reaches the water outlet hole 8 of the irrigator at the water outlet position 6, and is guided out of the pipeline through the drippers 2 to irrigate crops.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A drip irrigation emitter based on Tesla valve principle is characterized in that: including emitter pipeline (1), be provided with direction identification groove (7) on the pipe wall of emitter pipeline (1), the length direction of direction identification groove (7) with the axial direction of emitter pipeline (1) is unanimous, just be provided with baffle (17) in direction identification groove (7), be provided with tesla valve runner (4) that are used for slowing down the velocity of water in baffle (17), the entrance of tesla valve runner (4) is provided with into water filters window (3), just tesla valve runner (4) exit is provided with water position (6), it has emitter apopore (8) to open in water position (6), it filters window (3) and to enter water position (6) set up equally in baffle (17).
2. A tesla valve principle based drip emitter according to claim 1, wherein: the novel tesla valve is characterized in that a plurality of valve clacks (5) are arranged in the tesla valve flow passage (4), the valve clacks (5) divide the tesla valve flow passage (4) into a tesla valve main flow passage (15) and a tesla valve auxiliary flow passage (16), the main flow passage (15) of the tesla valve and the bifurcation of the tesla valve auxiliary flow passage (16) are arranged at the positions, on the valve clacks (5), of the expansion parts (12).
3. A drip emitter according to tesla valve principle according to claim 2, wherein: the water flow flowing into the inlet of the Tesla valve flow passage (4) is a main water flow (9), and the main water flow (9) is divided into an A water flow (10) and a B water flow (11) at the position of the expansion part (12).
4. A tesla valve principle based drip emitter according to claim 3, wherein: the A-branch water flow (10) flows into the Tesla valve secondary flow channel (16), the B-branch water flow (11) flows into the Tesla valve primary flow channel (15), and the A-branch water flow (10) and the B-branch water flow (11) are converged into the main water flow (9) at an outlet of the Tesla valve flow channel (4).
5. A drip emitter according to the Tesla valve principle according to claim 4, wherein: the position of the A-branch water flow (10) rotating in the Tesla valve auxiliary flow channel (16) is a concave part (13), the position of the A-branch water flow (10) and the B-branch water flow (11) meeting again is a protruding part (14), and the concave part (13) and the protruding part (14) are both arranged on the baffle (17).
6. A tesla valve principle based drip emitter according to claim 1, wherein: the protruding position department of direction discernment groove (7) is provided with a plurality of dripper (2), dripper (2) set up in outside baffle (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122419196.6U CN216722443U (en) | 2021-10-08 | 2021-10-08 | Drip irrigation emitter based on Tesla valve principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122419196.6U CN216722443U (en) | 2021-10-08 | 2021-10-08 | Drip irrigation emitter based on Tesla valve principle |
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| CN216722443U true CN216722443U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122419196.6U Active CN216722443U (en) | 2021-10-08 | 2021-10-08 | Drip irrigation emitter based on Tesla valve principle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793765A (en) * | 2023-07-11 | 2023-09-22 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Time-sharing quantitative rainwater collection device |
| CN117723134A (en) * | 2024-02-07 | 2024-03-19 | 陕西建一建设有限公司 | High-precision measuring device for integrated river water level |
-
2021
- 2021-10-08 CN CN202122419196.6U patent/CN216722443U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793765A (en) * | 2023-07-11 | 2023-09-22 | 生态环境部华南环境科学研究所(生态环境部生态环境应急研究所) | Time-sharing quantitative rainwater collection device |
| CN117723134A (en) * | 2024-02-07 | 2024-03-19 | 陕西建一建设有限公司 | High-precision measuring device for integrated river water level |
| CN117723134B (en) * | 2024-02-07 | 2024-05-03 | 陕西建一建设有限公司 | High-precision measuring device for integrated river water level |
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