CN205388006U - Large -traffic choked flow body valveless piezoelectric pump - Google Patents
Large -traffic choked flow body valveless piezoelectric pump Download PDFInfo
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- CN205388006U CN205388006U CN201620167474.XU CN201620167474U CN205388006U CN 205388006 U CN205388006 U CN 205388006U CN 201620167474 U CN201620167474 U CN 201620167474U CN 205388006 U CN205388006 U CN 205388006U
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Abstract
Large -traffic choked flow body valveless piezoelectric pump, it has a plurality of choked flow body groups to be the circumference equipartition on its pump seat, follows the pump seat lateral wall and has the fluid flow stand out channel that link up pump seat length direction, has a liquid hole on the pump seat, goes out the liquid hole and communicates with each other with the fluid flow stand out channel, still include the flow splitter, install on the flow splitter mounting groove of pump chamber that a week of following the lateral wall of flow splitter is provided with side feed liquor hole, the flow splitter up end is provided with feed liquor hole on at least one, the pump chamber up end is provided with at least one feed liquor hole, and is the same with the quantity in feed liquor hole on the flow splitter, the position phase -match. The utility model discloses improve the structure of pump seat, increased the flow splitter, can realize large flow fluid output and multiple fluid's mixture, enlarged the application of valveless piezoelectric pump.
Description
Technical field
This utility model belongs to fluid machinery technical field, relates to a kind of Valveless piezoelectric pump, specifically, relates to a kind of big flow bluff body Valveless piezoelectric pump.
Background technology
Piezoelectric pump is to utilize the inverse piezoelectric effect of piezoelectric ceramics to make piezoelectric vibrator be deformed, then is realized fluid output by the volume change of deformation generation pump chamber or utilize piezoelectric vibrator to produce fluctuation to transmit liquid.Valve piezoelectric pump and Valveless piezoelectric pump is had according to piezoelectric pump being divided into or without valve body in pump chamber.
Forward and reverse flow resistance difference of the bluff body Valveless piezoelectric pump bluff body by being arranged on pump frame realizes the function of pumping fluid.The fluid intake of traditional Valveless piezoelectric pump connects with outlet, for the pipeline of fluid turnover between entrance and exit, pass in and out the special shape of pipeline, pump chamber structure by fluid or to arrange choke apparatus in pump chamber poor to form forward and reverse choked flow, cause the difference in flow that fluid flows in and out along same passage, it is achieved the effect of " valve ".
Traditional structure limits the flow of fluid in Valveless piezoelectric pump and the application of Valveless piezoelectric pump.Owing to mostly the turnover of fluid is to be completed by a fluid access way, only can pass into a kind of fluid every time, and the size limitation of the passage flow of fluid；The turnover of the Valveless piezoelectric pump fluid also having is completed by a plurality of fluid passage, such as, the patent No. is a kind of bluff body Valveless piezoelectric pump disclosed in 201210396143.X, the side of pump seat is provided with three fluid access ways, the effect of pumping lot of trace fluid can be completed, but the impact of be obstructed flow profile or arrangement, fluid flow is little, mixes uniform not.To realize the output of bigger pump discharge, the shape of bluff body, arrange particularly significant, the fluid turnover direction of tradition Valveless piezoelectric pump is certain, in order to obtain good effect, bluff body is usually single-row or multiple row arranged in parallel along the direction of fluid turnover, due to it cannot be guaranteed that each bluff body is each perpendicular to the direction that fluid flows in and out, it is impossible to maximum plays the drain of bluff body, resistance flowing effect.
Utility model content
The purpose of this utility model is in that for the deficiencies in the prior art, it is provided that a kind of big flow Valveless piezoelectric pump realizing multiple fluid mixing.
The technical solution of the utility model is: big flow bluff body Valveless piezoelectric pump, including pump seat, pump chamber, threaded cap, is provided with piezoelectric vibrator between threaded cap and pump chamber；Pump seat is cylinder；Pump seat sidewall have its length direction through fluid outlet passage；
Circumferentially being evenly equipped with multiple bluff body group in choked flow housing, each bluff body group includes a front conductor；Having a liquid outlet downwardly extended along pump seat short transverse on pump seat, liquid outlet communicates with fluid outlet passage；
Also including flow splitter, including upper surface and sidewall, sidewall is provided with at least one side inlet opening, flow splitter upper surface is provided with at least one inlet opening；
Pump chamber is a cavity body, has through upper and lower end face, and pump chamber is sleeved on pump seat, and bottom is contained on the upper surface of pump frame, and pump chamber inwall has mounting groove, and flow splitter is contained in mounting groove place, and the cell wall of mounting groove and flow splitter upper surface outer wall closely cooperate；Pump chamber upper surface is provided with at least one inlet opening, and identical with the quantity of inlet opening on flow splitter, position matches.
Preferably: bluff body group also includes at least one main bluff body, the direction of side inlet opening to liquid outlet being fluid inflow direction, the direction that front conductor and main bluff body flow into along fluid is arranged in a linear；Be perpendicular to fluid inflow direction plane for benchmark, front conductor projected area on this plane is less than main bluff body projected area on this plane.
Further: front conductor has drain face and choked flow face, drain is facing to fluid inflow direction, when fluid flows into, plays drainage；Choked flow is facing to liquid outlet；When fluid flows out, play choked flow effect；Drain in the face of the resistance of fluid less than choked flow in the face of the resistance of fluid；Main bluff body includes drain face and choked flow face, and its drain is facing to the choked flow face of front conductor, and its choked flow is facing to liquid outlet；Main bluff body choked flow in the face of the resistance of fluid more than front conductor drain in the face of the resistance of fluid.
Further: bluff body group includes a front conductor and two main bluff bodys, it is main bluff body I and main bluff body II；Be perpendicular to fluid inflow direction plane for benchmark, front conductor projected area on this plane is less than main bluff body I projected area on this plane；Main bluff body I projected area on this plane is less than or equal to main bluff body II projected area on this plane.In addition, the structure of bluff body group is also designed to front three main bluff bodys of conductor or more main bluff bodys etc..
Further: front conductor and the combination that main bluff body is the various sizes of bluff body of same shape；Or the combination of difformity bluff body.Such as: front conductor and main bluff body are all hemisphere, hemispheroidal sphere is all towards fluid inflow direction, and plane is all towards the direction of fluid outflow, but the diameter of main bluff body is more than the diameter of front conductor；Can also be front conductor being hemisphere, main bluff body be cuboid, the direction that hemispheroidal sphere flows into towards fluid, the direction that plane flows out towards fluid, and the length of side of main bluff body is more than the diameter of front conductor.In addition, front conductor and main bluff body can also adopt the combination of the shape bluff bodys such as hemisphere, hemispherical Shell, cuboid, triangular prism, semicolumn, obform body.
Preferably: pump seat includes pump frame and choked flow housing, bluff body group is arranged in choked flow housing, has the fluid outlet passage of its length direction through along pump frame sidewall；Having a liquid outlet extended downwardly along bluff body seat height degree in choked flow housing, liquid outlet communicates with fluid outlet passage.
Preferably: the aperture of liquid outlet is more than the aperture of side inlet opening.
The beneficial effects of the utility model are:
(1) compared with traditional Valveless piezoelectric pump, adding flow splitter, fluid can be simultaneously entered by the multiple sides inlet opening on flow splitter, increases the flow of fluid, it may be achieved large flow fluid passes in and out；Taking full advantage of the space of pump body, make the more compact structure of Valveless piezoelectric pump relatively " pipeline valve " Valveless piezoelectric pump, volume is less.
(2) change the structure of tradition pump seat and then change the pattern of tradition Valveless piezoelectric pump fluid turnover pump chamber, traditional Valveless piezoelectric pump fluid turnover pump chamber is all the fluid access way by being arranged on pump chamber, only can pass into a kind of fluid or several micro fluid in piezoelectric pump.And the fluid inflow pump chamber of the application is to pass through inlet opening, flowing out pump chamber is the fluid outlet passage by being arranged on pump seat, inlet opening can design multiple, each inlet opening can flow into identical or different liquid, if different fluids, under piezoelectric vibrator effect of vibration, can make different fluids flow splitter inner impact and produce whirlpool after streaming many group bluff bodys effect under realize fully, mix efficiently.Flowing out effect to obtain large flow fluid, liquid outlet may be designed as multiple, and the aperture of liquid outlet is more than the aperture of side inlet opening, in order to flows out fluid flow more than reflux fluid flow.
(3) many group bluff body groups are devised, often the direction of all corresponding side inlet of group bluff body group, it is ensured that often group bluff body group is all vertical with the direction of fluid inflow and outflow, it is thus achieved that maximum drain, resistance flowing effect；And according to head principle of stacking, anyway the quantity with bluff body group should be similar to flow resistance difference and increase, it is thus possible to improve the pump-conveying property of piezoelectric pump greatly.
(4) application of Valveless piezoelectric pump is expanded, the effect of tradition Valveless piezoelectric pump only can realize simple pumping fluid, or it is only capable of realizing the immixture of micro fluid, owing to this utility model can realize the big flow mixing of multiple different liquids, can be used for Liquid Fertilizer mixing etc. multi-field.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is pump seat and bluff body group structural representation.
Fig. 3 is pump seat and bluff body group plan structure schematic diagram.
Fig. 4 is flow splitter structural representation.
Fig. 5 is flow splitter plan structure schematic diagram.
Fig. 6 is pump chamber structural representation.
Fig. 7 is pump chamber plan structure schematic diagram.
Fig. 8 is embodiment 2 pump seat and bluff body group plan structure schematic diagram.
Fig. 9 is embodiment 3 structural representation.
Wherein: 1-pump seat, 101-fluid outlet passage, 102-liquid outlet, 2-flow splitter mounting groove, main bluff body II, the 4-threaded cap of 3-, 5-piezoelectric vibrator, 6-bluff body group, conductor before 601-, the main bluff body of 602-, 7-flow splitter, 701-side inlet opening, the upper inlet opening of 702-, 8-pump chamber, 801-inlet opening, 802-liquid conduits, the main bluff body I of 9-, 10-piezoelectric vibrator mounting groove, 11-choked flow housing, 12-pump frame
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further detailed.
Embodiment 1
As it is shown in figure 1, big flow bluff body Valveless piezoelectric pump, the pump housing includes pump seat 1, pump chamber 8, threaded cap 4, is provided with piezoelectric vibrator 5 between threaded cap 4 and pump chamber 8.
As shown in Figures 2 and 3, in the present embodiment, pump seat 1 is cylinder.Along the cylindrical sidewall of pump seat 1 have through cylinder cross-sectional dimension direction fluid outlet passage 101.During work, fluid flows out to the pump housing from pump body via fluid outlet passage 101.
Pump seat 1 upper surface is circumferentially evenly equipped with six bluff body groups 6, and namely between each bluff body group, the pitch angles of ring row is 60 °.Each bluff body group 6 includes a front conductor 601 and a main bluff body 602.Pump seat 1 circle centre position has at least one liquid outlet 102 downwardly extended along the short transverse of pump seat 1, and liquid outlet 102 then extends down to communicate with fluid outlet passage 101.
As shown in Figure 4 and Figure 5, pump body structure also includes flow splitter 7, and in the present embodiment, flow splitter 7 is circulus, and including upper surface, lower surface and sidewall, its unilateral cross section isType, forType rotates formation around symmetrical central shaft.Along flow splitter 7 sidewall within one week, be provided with six side inlet openings 701, flow splitter 7 upper surface is provided with three upper inlet openings 702.In order to obtain preferably resistance flowing effect, as preferably, six side inlet openings 701 are also 60 ° of square rings rows of spacing, and each inlet opening 701 is all just to a bluff body group.
As shown in Figure 6 and Figure 7, it is arranged on pump seat 1 bottom pump chamber 8.Pump chamber 8 upper surface is provided with three inlet openings 801, and identical with the quantity of the upper inlet opening 702 of flow splitter 7 upper end surface, position matches.After installation, the inlet opening 801 on pump chamber 8 aligns with the upper inlet opening 702 on flow splitter 7.In the present embodiment, pump chamber inwall has upper and lower two mounting grooves, respectively piezoelectric vibrator mounting groove 10 and flow splitter mounting groove 2, and the cell wall of flow splitter mounting groove 2 and flow splitter 7 upper surface outer wall closely cooperate；Pump chamber 8 sidewall and flow splitter 7 upper surface, between lower surface and sidewall, form a flow cavity, it is ensured that liquid enters to flow intracavity portion through pump chamber 8 inlet opening 801 inlet opening 701 on flow splitter 7 is laggard.Owing to being provided with multiple inlet opening 801, it is possible to multiple different liquid is sent into pump chamber 8 through different inlet openings 801 internal simultaneously.
Pump seat, pump chamber 3, threaded cap 4, be provided with piezoelectric vibrator 5 and form the pump housing closed, communicated with the external world by fluid outlet passage 101 and three inlet openings 801 between threaded cap 4 and pump chamber 3.The work of piezoelectric pump can be divided into pumping same fluid and pumping different fluid.Three liquid conduits 802 can be installed at the three of pump chamber 8 inlet opening 801 place, during pumping same fluid, same liquid can be passed into by three liquid conduits 802 simultaneously, or close one or two liquid conduits 802, in the liquid conduits 802 of work, pass into same liquid；During pumping different fluid, can need to select to use several liquid conduits 802 according to liquid to be mixed；Such as, if the fluid that pumping is three kinds different, different liquid is passed at every liquid conduits 802；If pumping two kinds of different fluid, can be selected for two or three liquid conduits 802.
Fluid is after liquid conduits 802 is sent into, initially enter in the flow cavity formed between pump chamber 8 and flow splitter 7, flow in flow cavity, and six side inlet openings 701 on flow splitter 7 enter the inside cavity formed between flow splitter 7 and pump seat respectively, contact with bluff body group.
After piezoelectric vibrator energising, it will do the upwards reciprocal transformation swelled with concave downward and move.When piezoelectric vibrator upwards swells, liquid will continue to flow in pump；When piezoelectric vibrator concave downward, pump inner volume is compressed, pressure increases, a liquid part is through liquid outlet, and 102 enter fluid passage 101, flow out to outside the pump housing then through flow pass 101, some is back between pump chamber 8 and flow splitter 7 in the flow cavity of formation through fluid through side inlet opening 701, in order to obtain the effect of pumping large flow fluid, the aperture of liquid outlet 102 is more than the aperture of side inlet opening 701, it is ensured that the flow that the flow that fluid flows out flows into more than fluid.In the inflow and outflow process of whole liquid, bluff body group plays the effect of " valve ".
In order to make bluff body group better play the effect of " valve ", owing to side inlet opening 701 is two-way fluid circulation passage, shape and arrangement to front conductor 601 and main bluff body 602 need designed, just can ensure that fluid is measured more than the amount flowed out through what side inlet opening 701 flowed into.Being fluid inflow direction by the direction of side inlet opening 701 to liquid outlet 102, the direction that both front conductor 601 and main bluff body 602 flow into along fluid is arranged in a linear from front to back.Front conductor 601 has drain face and choked flow face, and drain is facing to fluid inflow direction, and namely the front conductor 601 in each bluff body group is all towards side inlet opening 701, when fluid flows into, plays drainage；Choked flow is facing to liquid outlet 102；When fluid flows out, play choked flow effect；Drain in the face of the resistance of fluid less than choked flow in the face of the resistance of fluid；Main bluff body 602 includes drain face and choked flow face, and its drain is facing to the choked flow face of front conductor, and its choked flow is facing to liquid outlet；The choked flow of main bluff body 602 in the face of the resistance of fluid more than front conductor drain in the face of the resistance of fluid.The direction that all corresponding fluid of each bluff body group flows into, for each bluff body group, be perpendicular to fluid inflow direction plane for benchmark, front conductor 601 projected area on this plane is less than main bluff body 602 projected area on this plane.Adopt such structure and arrangement, bluff body group just can be made to reach better choked flow, drainage effect.In the present embodiment, front conductor 601 adopts hemisphere, and its sphere is drain face, and towards side inlet opening 701, one end of its plane is choked flow face, towards liquid outlet 102；Main bluff body 602 adopts cuboid, and the side area relative with front conductor 601 choked flow face of main bluff body 602 is more than the area in front conductor choked flow face.
Embodiment 2
Different from embodiment 1 divided by lower structure, other are with embodiment 1.
Bluff body group includes a front conductor 601 and two main bluff bodys, is main bluff body I9 and main bluff body II3；Be perpendicular to fluid inflow direction plane for benchmark, front conductor 601 projected area on this plane is less than main bluff body I9 projected area on this plane；Main bluff body I9 projected area on this plane is less than or equal to main bluff body II3 projected area on this plane.
In addition, the structure of bluff body group is also designed to front three main bluff bodys of conductor or more main bluff bodys etc..
Embodiment 3
Present embodiments provide a kind of pump seat structure different from embodiment 1 and embodiment 2 and bluff body group 6 mounting structure.
Pump seat includes two parts, pump frame 12 and choked flow housing 11, and the two can be structure as a whole or detachable structure.Bluff body group 6 is arranged in choked flow housing 11, and fluid outlet passage 101 is positioned on pump frame 12, along pump frame 12 sidewall its length direction through；Having a liquid outlet 102 extended downwardly along bluff body seat height degree in choked flow housing 11, liquid outlet 102 communicates with fluid outlet passage 101.
Compared with the mounting means of bluff body group 6 in embodiment 1, this structure is more stable.
Claims (7)
1. big flow bluff body Valveless piezoelectric pump, including pump seat, pump chamber, threaded cap, is provided with piezoelectric vibrator between threaded cap and pump chamber；Pump seat is provided with bluff body, it is characterised in that: described pump seat sidewall have its length direction through fluid outlet passage；Circumferentially being evenly equipped with multiple bluff body group on pump seat, each bluff body group includes a front conductor；Having at least one liquid outlet downwardly extended along pump seat short transverse on pump seat, liquid outlet communicates with fluid outlet passage；Also including flow splitter, including upper surface and sidewall, sidewall is provided with at least one side inlet opening, flow splitter upper surface is provided with at least one inlet opening；Described pump chamber is sleeved on pump seat, and pump chamber inwall and flow splitter upper surface outer wall closely cooperate；Pump chamber upper surface is provided with at least one inlet opening, and identical with the quantity of inlet opening on flow splitter, position matches.
2. big flow bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterized in that: described bluff body group also includes at least one main bluff body, being fluid inflow direction by the direction of side inlet opening to liquid outlet, the direction that front conductor and main bluff body flow into along fluid is arranged in a linear；Be perpendicular to fluid inflow direction plane for benchmark, front conductor projected area on this plane is less than main bluff body projected area on this plane.
3. big flow bluff body Valveless piezoelectric pump as claimed in claim 2, it is characterised in that: described front conductor has drain face and choked flow face, and described drain is facing to fluid inflow direction, when fluid flows into, plays drainage；Described choked flow is facing to liquid outlet；When fluid flows out, play choked flow effect；Drain in the face of the resistance of fluid less than choked flow in the face of the resistance of fluid；Described main bluff body includes drain face and choked flow face, and its drain is facing to the choked flow face of front conductor, and its choked flow is facing to liquid outlet；Main bluff body choked flow in the face of the resistance of fluid more than front conductor drain in the face of the resistance of fluid.
4. big flow bluff body Valveless piezoelectric pump as claimed in claim 2 or claim 3, it is characterised in that: described bluff body group includes a front conductor and two main bluff bodys, is main bluff body I and main bluff body II；Be perpendicular to fluid inflow direction plane for benchmark, front conductor projected area on this plane is less than main bluff body I projected area on this plane；Main bluff body I projected area on this plane is less than or equal to main bluff body II projected area on this plane.
5. big flow bluff body Valveless piezoelectric pump as claimed in claim 4, it is characterised in that: described front conductor and the combination that main bluff body is the various sizes of bluff body of same shape；Or the combination of difformity bluff body.
6. big flow bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterised in that: described pump seat includes pump frame and choked flow housing, and described bluff body group is arranged in choked flow housing, has the fluid outlet passage of its length direction through along pump frame sidewall；Having a liquid outlet extended downwardly along bluff body seat height degree in choked flow housing, liquid outlet communicates with fluid outlet passage.
7. big flow bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterised in that: the aperture of liquid outlet is more than the aperture of side inlet opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620167474.XU CN205388006U (en) | 2016-03-04 | 2016-03-04 | Large -traffic choked flow body valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620167474.XU CN205388006U (en) | 2016-03-04 | 2016-03-04 | Large -traffic choked flow body valveless piezoelectric pump |
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| Publication Number | Publication Date |
|---|---|
| CN205388006U true CN205388006U (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620167474.XU Expired - Fee Related CN205388006U (en) | 2016-03-04 | 2016-03-04 | Large -traffic choked flow body valveless piezoelectric pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508209A (en) * | 2016-03-04 | 2016-04-20 | 青岛农业大学 | High-flow choke valveless piezoelectric pump |
| CN112412759A (en) * | 2020-11-18 | 2021-02-26 | 青岛农业大学 | Mixing, stirring and pumping integrated valveless piezoelectric pump |
-
2016
- 2016-03-04 CN CN201620167474.XU patent/CN205388006U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508209A (en) * | 2016-03-04 | 2016-04-20 | 青岛农业大学 | High-flow choke valveless piezoelectric pump |
| CN105508209B (en) * | 2016-03-04 | 2017-07-25 | 青岛农业大学 | Big flow bluff body Valveless piezoelectric pump |
| CN112412759A (en) * | 2020-11-18 | 2021-02-26 | 青岛农业大学 | Mixing, stirring and pumping integrated valveless piezoelectric pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20190304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |