CN103967759A - Ultrasonic water pump with built-in piezoelectric plate - Google Patents
Ultrasonic water pump with built-in piezoelectric plate Download PDFInfo
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- CN103967759A CN103967759A CN201410207933.8A CN201410207933A CN103967759A CN 103967759 A CN103967759 A CN 103967759A CN 201410207933 A CN201410207933 A CN 201410207933A CN 103967759 A CN103967759 A CN 103967759A
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- water pump
- electric sheet
- ultrasonic water
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Abstract
The invention discloses an ultrasonic water pump with a built-in piezoelectric plate. The ultrasonic water pump with the built-in piezoelectric plate comprises the piezoelectric plate and a fluid cavity, wherein the piezoelectric plate is used for converting received electric energy into ultrasonic waves, the piezoelectric plate is contained in the fluid cavity and supported and fixed through a support, a piezoelectric plate radiating surface makes direct contact with fluid and transmits the ultrasonic waves generated by the piezoelectric plate to fluid in the fluid cavity, the fluid flowing through the fluid cavity receives the ultrasonic waves transmitted by the piezoelectric plate radiating surface, acoustic streaming perpendicular to the piezoelectric plate is generated in the fluid, and the fluid is pushed to flow out of the fluid cavity. The ultrasonic water pump with the built-in piezoelectric plate is not provided with a rotating part or a shaft seal, the fluid to be pumped and conveyed is completely sealed in the cavity, and poisonous fluid, corrosive fluid and other fluid can be effectively pumped and conveyed.
Description
Technical field
The present invention relates to a kind of water pump, relate in particular to the built-in ultrasonic water pump of a kind of piezo-electric sheet.
Background technique
Water pump is the visual plant of carrying fluid, in most cases, the rotary water pump such as centrifugal pump, axial-flow pump can meet practical implementation requirement, but some in the industries such as Aeronautics and Astronautics, medicine, chemical industry, the energy in particular cases, when requirement is carried poisonous, corrosivity, radioactive fluid, traditional water pump cannot guarantee delivery safety due to the existence of shaft seal and rotatable parts.And at piezoelectric pump medical and chemical analysis field application, mainly relying on the motion of miniature deformation propelling fluid at present, flow only has tens milliliters per minute, cannot meet some industrial requirements.Therefore need a kind of rotatable parts that do not have, rely on the ultrasonic acoustic streaming to promote, there is the ultrasonic water pump of larger flow, to meet the needs of some special circumstances.
Summary of the invention
The invention provides the built-in ultrasonic water pump of a kind of piezo-electric sheet, can carry out safety to high pressure, poisonous, corrosive fluid and pump.
The invention provides the built-in ultrasonic water pump of a kind of piezo-electric sheet, comprising:
Piezo-electric sheet, for being converted to ultrasound by the electric energy receiving;
Fluid chamber, piezo-electric sheet is contained in described fluid chamber; Piezo-electric sheet radiation surface directly contacts with fluid, and the ultrasound that described radiation surface produces described piezo-electric sheet sends the fluid in described fluid chamber to; The fluid of flowing through in described fluid chamber receives the ultrasound that described piezo-electric sheet radiation surface transmits, and at internal fluid, produces the acoustic streaming perpendicular to described piezo-electric sheet, and propelling fluid flows out from fluid chamber outlet.
Preferably, described fluid chamber also comprises support, for supporting and fixing piezo-electric sheet.
Further preferably, described fluid chamber coning, for weakening the whirlpool in fluid chamber, reduces kinetic energy consumption.
Preferably, described ultrasonic water pump water inlet pipe is provided with internal thread, and described ultrasonic pumping line is provided with outside thread, for the series and parallel connections link of a plurality of ultrasonic water pumps, to increase pump head and flow.
Preferably, described piezo-electric sheet also comprises backing sealing, can prevent piezo-electric sheet electrode water inlet electric leakage.
Preferably, the frequency of okperation of described piezo-electric sheet is 0.8MHz-4MHz.
The present invention has realized the built-in ultrasonic water pump of a kind of piezo-electric sheet, by the current in ultrasonic water pump, carry out ultrasound processing, high frequency sound wave produces nonlinear attenuation at internal fluid, form acoustic streaming effect, thereby propelling fluid, to the direction motion perpendicular to piezo-electric sheet radiation surface, can meet user and in particular cases poisonous, corrosive fluid be carried out to the requirement that safety is pumped at some.
Accompanying drawing explanation
The ultrasonic water pump that piezo-electric sheet that Fig. 1 provides for the embodiment of the present invention is built-in sectional drawing;
The structural representation of the ultrasonic water pump that piezo-electric sheet that Fig. 2 provides for the embodiment of the present invention is built-in;
The schematic appearance of the ultrasonic water pump that piezo-electric sheet that Fig. 3 provides for the embodiment of the present invention is built-in.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with Fig. 1, Fig. 2 and Fig. 3, the specific embodiment of the invention is described in further detail.
The sectional drawing of the ultrasonic water pump that piezo-electric sheet that Fig. 1 provides for the embodiment of the present invention is built-in.The structural representation of the ultrasonic water pump that piezo-electric sheet that Fig. 2 provides for the embodiment of the present invention is built-in.The schematic appearance of the ultrasonic water pump that piezo-electric sheet that Fig. 3 provides for the embodiment of the present invention is built-in.
As shown in the figure, the built-in ultrasonic water pump of piezo-electric sheet comprises: piezo-electric sheet 7, fluid chamber 5.
Piezo-electric sheet 7 is converted to ultra sonic machinery by the electric energy receiving and can and passes to the fluid in described fluid chamber; Ultrasound produces acoustic streaming propelling fluid and flows to water outlet 2 in fluid, and the fluid of consequent vacuum suction water inlet 1 flows to fluid chamber 5, thereby realize fluid, pumps function.In the present embodiment, this fluid is preferably water.
The water transmission of ultrasound in fluid chamber 5, because producing nonlinear attenuation at internal fluid, sound wave forms acoustic streaming (approximately 10 centimetres of left and right), within the scope of the maximum distance that water outlet should reach at acoustic streaming from fluid chamber base plate, to obtain the best effect of pumping, preferably, the spacing between water outlet 2 and piezo-electric sheet 7 is within 10 centimetres.
Preferably, fluid chamber 5 is conical, to adapt to acoustic streaming flow field, reduces whirlpool, improves ultrasonic water pumpage.
Concrete, ultrasonic water pump also comprises piezo-electric sheet sealing 8, for the protection of piezo-electric sheet, and prevents electric leakage, piezo-electric sheet sealing 8 can be used epoxy sealing, also can add rubber sealing with outer shield.
Concrete, in fluid chamber 5, be equipped with piezo-electric sheet support 6, for supporting and fixing piezo-electric sheet.
When acoustic streaming propelling fluid moves perpendicular to piezo-electric sheet 7, in outside, can form reverse eddy current, consume fluid dynamic energy, be unfavorable for the conveying of fluid.For this reason, fluid chamber 5 is designed to taper shape, for clearing up the reverse eddy current in fluid chamber, weakens turbulent flow.
Concrete, fluid chamber 5 lower shoes are provided with fairlead 9,, for the electric wire of piezo-electric sheet is drawn outside water pump, preferably, fairlead 9 use epoxy sealings.
Ultrasonic water pump water inlet 1 is provided with internal thread 3, and water outlet 2 is provided with outside thread 4, for the series and parallel connections link of a plurality of ultrasonic water pumps, to increase pump head and flow.
Preferably, piezo-electric sheet 9 frequency of okperation are 0.8MHz-4MHz.
When the built-in ultrasonic pump working of piezo-electric sheet provided by the invention, need first will in fluid chamber, be full of fluid, and then start water pump, to avoid piezo-electric sheet because zero load is burnt.
Preferably, ultrasonic water pump of the present invention can also comprise preventing idle load device (not shown), can auto-breaking when fluid chamber 6 is anhydrous, prevent piezo-electric sheet 9 zero loads.Specific implementation can be passed through the liquid level in monitoring stream body cavity 6, or the operating current of monitoring piezo-electric sheet 9.
The built-in ultrasonic water pump of piezo-electric sheet that the present invention realizes, by the current in convection current body cavity, carry out ultrasound processing, high frequency sound wave produces nonlinear attenuation at internal fluid, form acoustic streaming effect, thereby propelling fluid, to the direction motion perpendicular to piezo-electric sheet radiation surface, can meet the requirement that user in particular cases effectively pumps poisonous, corrosive fluid at some.
Above-described embodiment; object of the present invention, technological scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the built-in ultrasonic water pump of piezo-electric sheet, is characterized in that, described ultrasonic water pump comprises:
Piezo-electric sheet, for being converted to ultrasound by the electric energy receiving;
Fluid chamber, piezo-electric sheet is contained in described fluid chamber; Piezo-electric sheet radiation surface directly contacts with fluid, and the ultrasound that described radiation surface produces described piezo-electric sheet sends the fluid in described fluid chamber to; The fluid of flowing through in described fluid chamber receives the ultrasound that described piezo-electric sheet radiation surface transmits, and at internal fluid, produces the acoustic streaming perpendicular to described piezo-electric sheet, and propelling fluid flows out from fluid chamber outlet.
2. ultrasonic water pump according to claim 1, is characterized in that, described fluid chamber also comprises support, for supporting and fixing piezo-electric sheet.
3. ultrasonic water pump according to claim 1, is characterized in that, described fluid chamber coning, for weakening the whirlpool in fluid chamber, reduces kinetic energy consumption.
4. ultrasonic water pump according to claim 1, is characterized in that, described ultrasonic water pump water inlet pipe is provided with internal thread, and described ultrasonic pumping line is provided with outside thread, for the series and parallel connections link of a plurality of ultrasonic water pumps, to increase pump head and flow.
5. ultrasonic water pump according to claim 1, is characterized in that, described piezo-electric sheet also comprises backing sealing, can prevent piezo-electric sheet electrode water inlet electric leakage.
6. ultrasonic water pump according to claim 1, is characterized in that, the frequency of okperation of described piezo-electric sheet is 0.8MHz-4MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207933.8A CN103967759A (en) | 2014-05-18 | 2014-05-18 | Ultrasonic water pump with built-in piezoelectric plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207933.8A CN103967759A (en) | 2014-05-18 | 2014-05-18 | Ultrasonic water pump with built-in piezoelectric plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967759A true CN103967759A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410207933.8A Pending CN103967759A (en) | 2014-05-18 | 2014-05-18 | Ultrasonic water pump with built-in piezoelectric plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN103967759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551920A (en) * | 2016-07-01 | 2018-01-09 | 中国科学院声学研究所 | A kind of multiple dimensioned mixing machine and mixing method |
| CN115822933A (en) * | 2022-12-23 | 2023-03-21 | 吉林大学 | Piezoelectric jet pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090232681A1 (en) * | 2008-03-13 | 2009-09-17 | Korea Institute Of Machinery & Materials | Ultrasonic piezoelectric pump |
| EP2431612A1 (en) * | 2010-09-21 | 2012-03-21 | Seiko Epson Corporation | Cooling device and projector |
| CN102626700A (en) * | 2012-05-07 | 2012-08-08 | 河海大学常州校区 | Ultrasonic cleaning device and ultrasonic cleaning method for underwater structure objects |
| CN103026066A (en) * | 2010-08-09 | 2013-04-03 | 凯希特许有限公司 | System and method for measuring pressure applied by a piezo-electric pump |
| JP2013068136A (en) * | 2011-09-21 | 2013-04-18 | Tohoku Univ | Implantable liquid pump system |
| CN202900597U (en) * | 2012-11-26 | 2013-04-24 | 山东大学 | Ultrasonic current micro-pump capable of achieving bidirectional-flow |
| US20130243627A1 (en) * | 2010-06-08 | 2013-09-19 | Centre National De La Recherche Scientifique | Ultrasonic traveling wave micropump for liquid |
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2014
- 2014-05-18 CN CN201410207933.8A patent/CN103967759A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090232681A1 (en) * | 2008-03-13 | 2009-09-17 | Korea Institute Of Machinery & Materials | Ultrasonic piezoelectric pump |
| US20130243627A1 (en) * | 2010-06-08 | 2013-09-19 | Centre National De La Recherche Scientifique | Ultrasonic traveling wave micropump for liquid |
| CN103026066A (en) * | 2010-08-09 | 2013-04-03 | 凯希特许有限公司 | System and method for measuring pressure applied by a piezo-electric pump |
| EP2431612A1 (en) * | 2010-09-21 | 2012-03-21 | Seiko Epson Corporation | Cooling device and projector |
| JP2013068136A (en) * | 2011-09-21 | 2013-04-18 | Tohoku Univ | Implantable liquid pump system |
| CN102626700A (en) * | 2012-05-07 | 2012-08-08 | 河海大学常州校区 | Ultrasonic cleaning device and ultrasonic cleaning method for underwater structure objects |
| CN202900597U (en) * | 2012-11-26 | 2013-04-24 | 山东大学 | Ultrasonic current micro-pump capable of achieving bidirectional-flow |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551920A (en) * | 2016-07-01 | 2018-01-09 | 中国科学院声学研究所 | A kind of multiple dimensioned mixing machine and mixing method |
| CN107551920B (en) * | 2016-07-01 | 2024-04-26 | 中国科学院声学研究所 | Multi-scale blender and blending method |
| CN115822933A (en) * | 2022-12-23 | 2023-03-21 | 吉林大学 | Piezoelectric jet pump |
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Application publication date: 20140806 |
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| RJ01 | Rejection of invention patent application after publication |