CN113123946A - A have valve resonance piezoelectric pump for agricultural sprinkling irrigation - Google Patents
A have valve resonance piezoelectric pump for agricultural sprinkling irrigation Download PDFInfo
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- CN113123946A CN113123946A CN202110450885.5A CN202110450885A CN113123946A CN 113123946 A CN113123946 A CN 113123946A CN 202110450885 A CN202110450885 A CN 202110450885A CN 113123946 A CN113123946 A CN 113123946A
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- elastic sheet
- vibration
- block
- lower vibration
- diaphragm
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- 230000002262 irrigation Effects 0.000 title claims abstract description 15
- 238000003973 irrigation Methods 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000005086 pumping Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a valved resonant piezoelectric pump for agricultural sprinkling irrigation, and relates to a device for conveying fluid in an agricultural irrigation system. The vibration damper consists of a piezoelectric vibrator, an upper vibration transmission block, an upper vibration transmission elastic sheet, a lower vibration transmission block, a lower vibration transmission elastic sheet, a diaphragm, a wheel type valve and the like. In the invention, the piezoelectric vibrator is connected with an alternating current power supply, and the piezoelectric vibrator is driven by electric signals with different waveforms, so that a resonance system is driven to enable the amplitude of the piezoelectric vibrator to be amplified through the vibration transmission rod and act on the diaphragm, and thus, the directional delivery of fluid in the pump cavity is realized.
Description
Technical Field
The invention belongs to the field of fluid delivery, and particularly relates to a device for delivering fluid in an agricultural irrigation system.
Background
The piezoelectric pump is a fluid conveying device taking a piezoelectric vibrator as a driving force source, has the advantages of small volume, low power consumption, low cost, no electromagnetic interference, accurate flow control and the like, is widely applied to the fields of biomedicine, precise chemistry, micro-electro-mechanical engineering and the like, but has less application in agriculture.
The traditional agriculture is not in place for improving and applying an irrigation system, so that a large amount of water resource is wasted, the irrigation cost is continuously increased, and the water resource is saved and the income of farmers is improved. The invention provides a round piezoelectric vibrator driven valved resonance piezoelectric pump for agricultural irrigation, and relates to a device for conveying fluid in an agricultural irrigation system. Therefore, the pumping efficiency is improved, the high-efficiency pumping can be finished under the condition that the height difference of the fluid is larger, and the agricultural spraying is facilitated.
Disclosure of Invention
The invention provides a piezoelectric pump which can be installed simply and has high output flow aiming at the problems of the conventional piezoelectric pump.
The technical scheme adopted by the invention is as follows: a valved resonance piezoelectric pump for agricultural sprinkling irrigation comprises a piezoelectric vibrator (1), an upper vibration block (2), an upper vibration elastic sheet (3), a lower vibration block (4), a lower vibration elastic sheet (5), a diaphragm (6), a wheel type valve (7), an inlet (8), a base (9), an outlet (10), a snap ring (11) and a cylindrical screw (12);
the piezoelectric vibrator (1) is a single-crystal-circle-shaped piezoelectric vibrator, the upper vibration-uploading block (2) is provided with an inner mounting groove (2-1) for mounting the piezoelectric vibrator (1), an outer mounting groove (2-2) and an upper vibration-uploading elastic sheet (3), the lower vibration block (4) is provided with an inner groove (4-1) for installing an upper vibration elastic sheet (3), an outer groove (4-2) for a lower vibration elastic sheet (5), the lower vibration-transmission elastic sheet (5) is provided with an inner cylindrical head screw hole for fixing the diaphragm (6) through a cylindrical screw (12), the base (9) is provided with a connecting inlet valve end (9-1) and an outlet valve end (9-2) for mounting the wheel valve (7), a cylindrical screw (12) is used for fixing the diaphragm, the clamping ring (11) is provided with a cylindrical screw hole for mounting the lower vibration-transmission elastic sheet (5) and the fixed diaphragm (6). The piezoelectric vibrator (1) is placed in an inner mounting groove (2-1) of an upper vibration block (2), an upper vibration elastic sheet (3) is placed in an outer mounting groove (2-2) of the upper vibration block, the upper vibration elastic sheet (3) is placed in an inner groove (4-1) of a lower vibration block (4), and a lower vibration elastic sheet (5) is placed in an outer groove (4-2) of the lower vibration block (4), so that a resonance system (figure 2) is formed. The lower vibration-transmitting elastic sheet (5) is connected with the snap ring (11), the diaphragm (6) and the base (9) through cylindrical screws, the wheel-type valve (7) is placed in an inlet valve end (9-1) of the base (9), the wheel-type valve (7) is placed in an outlet valve end (9-2), the direction is opposite to that of the inlet valve end, and the lower vibration-transmitting elastic sheet and the inlet valve end form a pumping system (figure 1) and then are matched with a resonance system (figure 2), so that the purpose of assembling the whole pump is achieved;
as a further improvement of the above technical solution, the lower vibration transmission block (4) can be adjusted by changing the thickness of the vibration transmission block or replacing the vibration transmission block of different materials, and the elasticity of the vibration transmission elastic sheet can be adjusted by changing the thickness and materials of the upper vibration transmission elastic sheet (3) and the lower vibration transmission elastic sheet (5); the pumping performance of the piezoelectric pump is adjusted until the working mode that the input pressure and the output pressure are maximum is adjusted;
as a further improvement of the technical scheme, the wheel type valve (7) can adjust the rigidity of the one-way valve by changing the structure of the bending cantilever without changing the overall size, so that the pumping performance is improved. Therefore, the pumping efficiency of the piezoelectric pump can be improved under the condition that the ratio of the port size to the inlet and outlet size is determined;
as a further improvement of the technical scheme, the upper transmission vibration block (2), the lower transmission vibration block (4) and the base (9) are arranged. The size of the piezoelectric pump can be adjusted and the groove can be formed, so that the size of the piezoelectric pump can be adjusted according to specific use scenes and requirements, and fewer mounting screws are used for facilitating mounting and arrangement;
as a further improvement of the above technical solution, the piezoelectric actuator in the present invention is separated from the pump chamber diaphragm, and the displacement of the piezoelectric actuator is amplified by using the resonance principle to drive the pump chamber diaphragm. Therefore, the pumping efficiency is improved, the high-efficiency pumping can be finished under the condition that the height difference of the fluid is larger, and the agricultural spraying is facilitated.
The invention has the beneficial effects that:
the piezoelectric actuator in the invention is separated from the pump cavity diaphragm, and the displacement of the piezoelectric actuator is amplified by utilizing the resonance principle to drive the pump cavity diaphragm. Therefore, the pumping efficiency is improved, and the high-efficiency pumping can be finished under the condition of larger fluid height difference;
the amplification effect of the vibration action of the piezoelectric vibrator can be flexibly adjusted through the vibration transmission elastic sheet and the thickness and the material of the vibration transmission block;
the invention has simple assembly relation and is convenient for the installation and the arrangement of the whole device.
Drawings
Fig. 1 is an overall assembly schematic of the present invention.
Fig. 2 is a schematic diagram of the overall explosion of the present invention.
Fig. 3 is an exploded schematic view of the resonant system of the present invention.
Fig. 4 is an exploded schematic view of the pumping system of the present invention.
Fig. 5 is a schematic cross-sectional view of a base of the present invention.
Figure 6 is a schematic diagram of the construction of the wheel valve of the present invention.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
The structure and principle of the present invention will be further described with reference to the embodiments shown in fig. 1 to 6.
A valved resonance piezoelectric pump for agricultural sprinkling irrigation comprises a piezoelectric vibrator (1), an upper vibration block (2), an upper vibration elastic sheet (3), a lower vibration block (4), a lower vibration elastic sheet (5), a diaphragm (6), a wheel type valve (7), an inlet (8), a base (9), an outlet (10), a snap ring (11) and a cylindrical screw (12); the piezoelectric vibrator (1) is a single-crystal-circle-shaped piezoelectric vibrator, the upper vibration-transmitting block (2) is provided with an inner mounting groove (2-1) for mounting the piezoelectric vibrator (1), an outer mounting groove (2-2) for mounting the upper vibration-transmitting elastic sheet (3), the lower vibration block (4) is provided with an inner groove (4-1) for installing an upper vibration elastic sheet (3), an outer groove (4-2) for a lower vibration elastic sheet (5), the lower vibration-transmission elastic sheet (5) is provided with an inner cylindrical head screw hole for fixing the diaphragm (6) through a cylindrical screw (12), the base (9) is provided with a connecting inlet valve end (9-1) and an outlet valve end (9-2) for mounting the wheel valve (7), a cylindrical screw (12) is used for fixing the diaphragm, the clamping ring (11) is provided with a cylindrical screw hole for mounting the lower vibration-transmission elastic sheet (5) and the fixed diaphragm (6). The piezoelectric vibrator (1) is placed in an inner mounting groove (2-1) of an upper vibration block (2), an upper vibration elastic sheet (3) is placed in an outer mounting groove (2-2) of the upper vibration block, the upper vibration elastic sheet (3) is placed in an inner groove (4-1) of a lower vibration block (4), and a lower vibration elastic sheet (5) is placed in an outer groove (4-2) of the lower vibration block (4), so that a resonance system (figure 2) is formed. The lower vibration elastic sheet (5) is connected with the snap ring (11), the diaphragm (6) and the base (9) through cylindrical screws, the wheel type valve (7) is placed in the inlet valve end (9-1) of the base (9), the wheel type valve (7) is placed in the outlet valve end (9-2), the direction is opposite to that of the inlet valve end, and the lower vibration elastic sheet and the inlet valve end form a pumping system (figure 1) and then are matched with a resonance system (figure 2), so that the purpose of assembling the whole pump is achieved.
As a further improvement of the above technical solution, the lower vibration transmission block (4) can be adjusted by changing the thickness of the vibration transmission block or replacing the vibration transmission block of different materials, and the elasticity of the vibration transmission elastic sheet can be adjusted by changing the thickness and materials of the upper vibration transmission elastic sheet (3) and the lower vibration transmission elastic sheet (5); the pumping performance of the piezoelectric pump is adjusted until the working mode that the input pressure and the output pressure are maximum is adjusted;
as a further improvement of the technical scheme, the wheel type valve (7) can adjust the rigidity of the one-way valve by changing the structure of the bending cantilever without changing the overall size, so that the pumping performance is improved. Therefore, the pumping efficiency of the piezoelectric pump can be improved under the condition that the ratio of the port size to the inlet and outlet size is determined;
as a further improvement of the technical scheme, the upper transmission vibration block (2), the lower transmission vibration block (4) and the base (9) are arranged. The size of the piezoelectric pump can be adjusted and the groove can be formed, so that the size of the piezoelectric pump can be adjusted according to specific use scenes and requirements, and fewer mounting screws are used for facilitating mounting and arrangement;
as a further improvement of the above technical solution, the piezoelectric actuator in the present invention is separated from the pump chamber diaphragm, and the displacement of the piezoelectric actuator is amplified by using the resonance principle to drive the pump chamber diaphragm. Therefore, the pumping efficiency is improved, the high-efficiency pumping can be finished under the condition that the height difference of the fluid is larger, and the agricultural spraying is facilitated.
The working process of the invention is divided into a first working process and a second working process:
the first working process comprises the following steps: applying an alternating current signal and a piezoelectric vibrator (1), wherein the piezoelectric vibrator (1) drives a resonance system (figure 1) consisting of a vibration transmission block (2), an upper vibration transmission elastic sheet (3), a lower vibration transmission block (4) and a lower vibration transmission elastic sheet (6) to form resonance vibration action to be used on a diaphragm (6), the resonance vibration action moves in the axial direction of the diaphragm and in the direction away from a cavity, the volume of the cavity is increased, negative pressure is formed in a pump cavity, fluid at an inlet (8) is filled into the pump cavity along the direction of a wheel valve (7) at an inlet valve port (9-1), the wheel valve (7) at an outlet valve port (9-2) at an outlet (10) is closed, and the fluid flows into the device;
the second working process: the piezoelectric vibrator (1) drives a resonance system (figure 1) to form a resonance vibration action to be used on the diaphragm (6), the diaphragm moves towards the direction of the cavity in the axial direction of the diaphragm, the volume of the cavity is reduced, positive pressure is formed in the pump cavity, fluid at the cavity flows out of the pump cavity along the direction of the wheel valve (7) at the outlet valve port (9-2) at the inlet (10), meanwhile, the wheel valve (7) at the inlet valve port (9-1) at the inlet (8) is closed, and the fluid flowing device realizes continuous output of the fluid through the cyclic work of the two working processes.
The principles and embodiments of the present invention have been described herein using specific examples, which are intended to facilitate an understanding of the principles and core concepts of the invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A valved resonance piezoelectric pump for agricultural sprinkling irrigation comprises a piezoelectric vibrator (1), an upper vibration block (2), an upper vibration elastic sheet (3), a lower vibration block (4), a lower vibration elastic sheet (5), a diaphragm (6), a wheel type valve (7), an inlet (8), a base (9), an outlet (10), a snap ring (11) and a cylindrical screw (12); the piezoelectric vibrator (1) is a single-crystal-circle-shaped piezoelectric vibrator, the upper vibration-transmitting block (2) is provided with an inner mounting groove (2-1) for mounting the piezoelectric vibrator (1), an outer mounting groove (2-2) for mounting the upper vibration-transmitting elastic sheet (3), the lower vibration block (4) is provided with an inner groove (4-1) for installing an upper vibration elastic sheet (3), an outer groove (4-2) for a lower vibration elastic sheet (5), the lower vibration-transmission elastic sheet (5) is provided with an inner cylindrical head screw hole for fixing the diaphragm (6) through a cylindrical screw (12), the base (9) is provided with a connecting inlet valve end (9-1) and an outlet valve end (9-2) for mounting the wheel valve (7), a cylindrical screw (12) is used for fixing the diaphragm, the clamping ring (11) is provided with a cylindrical screw hole for mounting the lower vibration-transmission elastic sheet (5) and the fixed diaphragm (6). The piezoelectric vibrator (1) is placed in an inner mounting groove (2-1) of an upper vibration block (2), an upper vibration elastic sheet (3) is placed in an outer mounting groove (2-2) of the upper vibration block, the upper vibration elastic sheet (3) is placed in an inner groove (4-1) of a lower vibration block (4), and a lower vibration elastic sheet (5) is placed in an outer groove (4-2) of the lower vibration block (4), so that a resonance system (figure 2) is formed. The lower vibration elastic sheet (5) is connected with the snap ring (11), the diaphragm (6) and the base (9) through cylindrical screws, the wheel type valve (7) is placed in a groove of an inlet valve end (9-1) of the base (9), the wheel type valve (7) is placed in a groove of an outlet valve end (9-2), the direction of the wheel type valve is opposite to that of the inlet valve end, and therefore the lower vibration elastic sheet and the base form a pumping system (figure 1) and then are matched with a resonance system (figure 2), and the purpose of assembling the whole pump is achieved.
2. A valved resonant piezoelectric pump for agricultural irrigation as claimed in claim 1 wherein: the lower vibration transmission block (4) can be adjusted by changing the thickness of the vibration transmission block or replacing the vibration transmission block made of different materials, and the elasticity of the vibration transmission elastic sheet can be adjusted by changing the thickness, the materials and the like of the upper vibration transmission elastic sheet (3) and the lower vibration transmission elastic sheet (5); therefore, the pumping performance of the piezoelectric pump is adjusted until the working mode that the input pressure and the output pressure are maximum is adjusted.
3. A valved resonant piezoelectric pump for agricultural irrigation as claimed in claim 1 wherein: the rigidity of the one-way valve can be adjusted by changing the structure of the bent cantilever under the condition that the overall size of the wheel type valve (7) is not changed, and the pumping performance is improved. Therefore, the pumping efficiency of the piezoelectric pump can be improved under the condition that the ratio of the port size to the inlet and outlet size is determined.
4. A valved resonant piezoelectric pump according to claim 1, wherein: wherein, the upper vibration block (2), the lower vibration block (4) and the base (9) can be adjusted in size and provided with grooves, so that the piezoelectric pump can be adjusted in size according to specific use scenes and requirements, and fewer mounting screws are convenient to mount and arrange.
5. A valved resonant piezoelectric pump for agricultural irrigation as claimed in claim 1 wherein: the piezoelectric actuator is separated from the pump chamber diaphragm, and the displacement of the piezoelectric actuator is amplified by utilizing the resonance principle to drive the pump chamber diaphragm. Therefore, the pumping efficiency is improved, the high-efficiency pumping can be finished under the condition that the height difference of the fluid is larger, and the agricultural spraying is facilitated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110450885.5A CN113123946A (en) | 2021-04-26 | 2021-04-26 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110450885.5A CN113123946A (en) | 2021-04-26 | 2021-04-26 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
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| Publication Number | Publication Date |
|---|---|
| CN113123946A true CN113123946A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110450885.5A Pending CN113123946A (en) | 2021-04-26 | 2021-04-26 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
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