CN102705261A - Vortex impeller - Google Patents
Vortex impeller Download PDFInfo
- Publication number
- CN102705261A CN102705261A CN2011103416481A CN201110341648A CN102705261A CN 102705261 A CN102705261 A CN 102705261A CN 2011103416481 A CN2011103416481 A CN 2011103416481A CN 201110341648 A CN201110341648 A CN 201110341648A CN 102705261 A CN102705261 A CN 102705261A
- Authority
- CN
- China
- Prior art keywords
- eddy current
- impeller
- vortex chamber
- vortex
- current impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a vortex impeller, which comprises an impeller body, wherein a transmission shaft connecting device is arranged on the impeller body; a vortex chamber is formed in the impeller body; a vortex chamber inlet is formed in the middle of the vortex chamber; a plurality of guide vanes are arranged at the periphery of the vortex chamber; the surfaces of the guide vanes have an arc structure; and an included angle A1 is formed between the tangent of an arc surface on the outer edges of the guide vanes and the radius of the impeller body. By the vortex impeller, circular motion and fluid motion are fully utilized, energy buffer is realized by utilizing vortex, the fluid is prevented from directly colliding with a moving part of the vortex impeller so as to cause high energy loss, the vortex impeller is prevented from being damaged due to fluid impact, the rotating speed of the impeller can be greatly improved, the pressure for pressurizing the fluid can be greatly increased, and a higher pressure can be generated; and moreover, noise, vibration, wear and the like can be greatly reduced, and the service life of the impeller can be greatly improved. By the vortex impeller, centrifugal impellers of conventional water pumps, fans, centrifugal compressors, air suction equipment, spraying equipment, atomizing equipment and the like can be widely replaced, the energy can be saved, the noise can be reduced, the service life of the impeller is prolonged, and the construction cost of equipment is reduced.
Description
Technical field
The present invention relates to the wheel member of supercharging equipment, vacuum equipment, spraying apparatus, atomization plant etc., specifically is a kind of eddy current impeller.Can be widely used in fields such as pressurized with fluid, conveying.The impeller that can be used as water pump, air pump, blower fan, air compressor, suction device, vacuum pump, spraying apparatus, atomization plant etc. uses, and can produce more high pressure, can be more energy-conservation.
Background technique
Existing impeller mainly contains centrifugal impeller etc., defectives such as the ubiquity energy consumption is high, noise is big, cost height.
Summary of the invention
The present invention provides a kind of eddy current impeller; Adopt brand-new supercharging mode; Make full use of fluid motion, the eddy current that utilizes rotating speed from the center to the periphery to increase progressively makes fluid automatically from the suction vortex of eddy current centre area; Make fluid the movement process peripheral, receive vortes interference, under the circular movement action of centrifugal force, from the vortex chamber, throw away from the eddy current center to eddy current.Utilize eddy current to realize energy snubber; Bump causes the significant amount of energy loss to avoid fluid and eddy current impeller moving element to produce directly, avoids the eddy current impeller to damage because of fluid impact, can improve the eddy current wheel speed greatly; The pressure of convection cell supercharging can be improved greatly, more high pressure can be produced.
There is the power of rubbing, separating in the vortex field to the object in the eddy current, and this power improves with the raising of rotational speed of eddy current synchronously.This power can make well that fluid is separated, blending is even, utilizes this point can avoid the cavitation problem of pump well; Also can better promote chemical reaction; Also can make the liquid-to-air better mixing even, make air-flow form spraying more uniformly.Utilize the blending effect of eddy current, make jet-stream wind become the spraying air-flow, can form good atomizing effect, can produce ultra-fine droplet, can produce the high-pressure injection aerosol.This eddy current impeller can make liquid fully mix with air-flow; Liquid is fully cut by air-flow, make liquid fully separate, mix, can form the nanometer droplet with air-flow; It is minimum that droplet can reach, and this eddy current impeller can be widely used in the various fields that need atomization plant.This eddy current impeller can be used as blower fan or sprayer impeller, can be used for molten metal flame spraying, pigment atomizing, pesticide spraying, fire extinguishing sprinkling, the humidification of the cooling field that is used for atomizing, atomization drying field, engine fuel atomization, heavy oil atomizing, water coal slurry atomizing, printing and dyeing, sterilizes, eliminates the unusual smell, makes numerous areas such as mist, pharmacy, inhalation drug treatment.
This eddy current impeller utilizes the blending effect of eddy current, makes water pump avoid cavitation erosion better.Utilize eddy current to make chemical reaction more abundant; The water pump or the blower fan that make this eddy current impeller or assemble this eddy current impeller can be used as reactor and use, and can better promote chemical reaction, can create special physics, chemical reaction condition; Can quicken chemical reaction velocity, improve reaction effect.
The present invention realizes through following technological scheme for realizing above-mentioned purpose:
The eddy current impeller comprises wheel body, and drive shaft connection arrangement is set on the wheel body; Establish the vortex chamber in the wheel body, the vortex chamber offers vortex chamber's import in the middle part, and vortex chamber's periphery is provided with a plurality of stators; The stator surface is a globoidal structure, and angle is A1 between the tangent line of stator outer rim place arc surface and wheel body radius.The annular concave-convex block body is set on the wheel body outer wall.Vortex chamber's inlet edge arrives radial distance and vortex chamber's inlet edge of cavity edge in the vortex chamber and selects 0.618: 1 to the ratio of the radial distance of wheel body outer rim.Stator surface radian equates with eddy current impeller outer edge radian.The angle of A1 is about 30 degree.The angle of A1 is about 0 degree.Stator forms runner each other, and runner shrinks to the impeller outer edge outlet gradually.Vortex chamber's inwall axial thickness is thickeied to axis direction gradually.The vortex chamber is to edge attenuation gradually.Two eddy current impellers connect together and form a whole eddy current impeller, and vortex chamber's inlet openings direction of each eddy current impeller is respectively towards the two ends of eddy current impeller.
The invention has the advantages that: utilize brand-new boosting method, made full use of circular movement and fluid motion.This eddy current impeller utilizes eddy current to realize energy snubber; Bump causes the significant amount of energy loss to avoid fluid and eddy current impeller moving element to produce directly, avoids the eddy current impeller to damage because of fluid impact, can improve the eddy current wheel speed greatly; The pressure of convection cell supercharging can be improved greatly, more high pressure can be produced.Greatly reduce noise, vibration, wearing and tearing etc., can improve working life greatly.
The present invention have make simple, low cost of manufacture, user cost is low, maintenance cost is low, long service life, pressurized effect are good, can produce advantages such as more high pressure, pressure are regulated arbitrarily from low to high, pressure range is wide.
Eddy current impeller of the present invention can be widely used in various supercharging equipments field.Available it use as the impeller of multiple water pump, blower fan, air pump, centrifugal compressor etc., can be widely used in fields such as fluid pressurized, conveying.
This eddy current impeller can make water pump realize effects such as big flow, high-lift, low energy consumption, can realize higher rotating speed, and available high speed single-stage pump replaces multistage pump.Can make air pump produce more high pressure.Can make blower fan reduce noise greatly, cut down the consumption of energy, improve blast, improve flow, can produce higher blast.Can make compressor produce more high pressure.Can make atomization plant produce the nanometer droplet, can produce high-pressure aerial fog.
Description of drawings
Accompanying drawing 1 is an eddy current impeller bodies structural representation of the present invention;
Accompanying drawing 2 be in the accompanying drawing 1 A-A to the sectional structure schematic representation;
Accompanying drawing 3 is main TV structure schematic representation of one of eddy current impeller embodiment of the present invention;
Accompanying drawing 4 is plan structure schematic representation of two of eddy current impeller embodiment of the present invention;
Accompanying drawing 5 is plan structure schematic representation of three of eddy current impeller embodiment of the present invention;
Accompanying drawing 6 is plan structure schematic representation of four of eddy current impeller embodiment of the present invention;
Accompanying drawing 7 is plan structure schematic representation of five of eddy current impeller embodiment of the present invention;
Accompanying drawing 8 is main TV structure schematic representation of six of eddy current impeller embodiment of the present invention;
Accompanying drawing 9 is main TV structure schematic representation of seven of eddy current impeller embodiment of the present invention;
Accompanying drawing 10 is main TV structure schematic representation of eight of eddy current impeller embodiment of the present invention;
Embodiment
The agent structure of eddy current impeller of the present invention comprises wheel body 1; Drive shaft connection arrangement 7 is set on the wheel body 1; Establish vortex chamber 2 in the wheel body 1, the vortex chamber offers vortex chamber's import 3 in 2 middle parts, and vortex chamber's 2 peripheries are provided with a plurality of stators 4; Stator 4 surfaces are globoidal structure, and angle is A1 between the tangent line of stator 4 outer rim place arc surfaces and wheel body 1 radius.
Drive shaft connection arrangement 7 is set on the wheel body 1.Can drive shaft connection arrangements 7 such as keyway or screw thread be set at wheel body 1 center is connected with transmission shaft.
Establish vortex chamber 2 in the wheel body 1, vortex chamber 2 can be arranged to the rounded cavity of cross section, can better keep the dynamic balancing of eddy current impeller, can make in the vortex chamber and better to form the eddy current that increases progressively of rotating speed from the center to the periphery.
The vortex chamber offers vortex chamber's import 3 in 2 middle parts.The center of the center of vortex chamber's import 3 and vortex chamber 2 can make vortex chamber 2 when fluid gets into, keep balance on same axis.The ratio of vortex chamber's inlet radius and vortex chamber's inner chamber radius can be selected multiple ratio as required; Can add vast scale when needing flow big; But need flow hour reduce in scale, need flow generally speaking, can select 0.382: 1; Can better make and form eddy current, better concordant flow in the vortex chamber.Vortex chamber's import 3 is opened on vortex chamber's sidewall, can one side offer vortex chamber's import in the vortex chamber.
Vortex chamber's 2 peripheries are provided with a plurality of stators 4, and stator 4 is located at the most peripheral of vortex chamber 2, can according to fluid flow determine stator 4 what, can stator 4 be evenly distributed on the circumference of vortex chamber 2 and get final product.When this eddy current impeller is used for soil pick-up pump, pollution discharge pump, slurry pump etc., can strengthen stator 4 length, strengthen stator 4 thickness, strengthen the distance between the stator, can improve eddy current impeller intensity, impact resistance and rotational stabilization, can avoid stopping up in the pump.
Angle is A1 between the tangent line of stator 4 outer rim place arc surfaces and wheel body 1 radius.The tangential angle of stator 4 outer rim place arc surfaces has determined the angle of stator acting face, confirms that the tangent line of stator 4 outer rim place arc surfaces and the angle between wheel body 1 radius can confirm the stator angle better, makes the better concordant flow of stator, pressure.A1 can select multiple angles, and multiple angles can be selected forward,, radially waited to stator 4 for use backwards.The stator outer rim is towards the place ahead that wheel body rotatablely moves; Can alleviate the fluid radial motion; Alleviate the bump energy consumption between the fluid, can alleviate the power that fluid radially throws away to inner walls, can alleviate the bump energy consumption between the fluid; The linear velocity of wheel body outer rim fluid motion can be improved, hydrodynamic pressure can be improved.The stator outer rim is when rear that wheel body rotatablely moves, but enlargement discharge.The A1 angle is 0 when spending, and effect falls between.
The structure of one of embodiment of the invention is: on the agent structure basis, on wheel body 1 outer wall annular concave-convex block body 6 is set.Can on wheel body 1 outer wall, be provided with one or multiple tracks annular concave-convex block body 6; Available lathe is at wheel body 1 outer wall get on the bus out annular groove and annular bump body; When the eddy current impeller is installed,, reserve certain interval with annular groove and the mutual interlock of annular bump body on the eddy current impeller at supercharging device inwall get on the bus out annular groove and annular bump body; Form annular concave-convex block body 6; Also can technological methodes such as annular iron plate employing welding be arranged on and form annular concave-convex block body 6 on wheel body 1 outer wall, annular concave-convex block body 6 can stop that high-pressure liquid leaks to the impeller center region along the impeller outer wall, can avoid high-pressure liquid in casing, to leak.
Two structure of the embodiment of the invention is: on above architecture basics, the radial distance of vortex chamber's import 3 edges cavity edges in the vortex chamber 2 and vortex chamber's import 3 edges were to the ratio selection of the radial distance of wheel body outer rim 0.618: 1.Can make each eurythmy of wheel body, can better make and form eddy current in the vortex chamber, better dependable flow, buffering energy.
Three structure of the embodiment of the invention is: on above architecture basics, stator 4 surperficial radians equate with eddy current impeller outer edge radian.Stator 4 surperficial radians equate with eddy current impeller outer edge radian.Can better coordinate the fluid movement locus, fluid more be prone to be got between the stator, can further improve the linear velocity after fluid comes out in the eddy current impeller, reduce fluid radial motion power, can further improve pressure, can be more energy-conservation.
The further structure of present embodiment is: the angle of A1 is about 30 degree.The centripetal force of the fluid on stator 4 surfaces of flowing through is met in the outer rim of wheel body 1, can reduce the fluid radial motion, can improve pressurized effect, better concordant flow, pressure and efficient.
The eddy current impeller of present embodiment can better be coordinated the fluid movement locus, can make fluid more be prone to get between the stator, better concordant flow, pressure and efficient.The eddy current impeller of present embodiment just changes, all can reverse, and just changeing, reversing to produce different effects.
Four structure of the embodiment of the invention is: on above architecture basics, the angle of A1 is about 0 degree.The eddy current impeller of present embodiment can improve flow.
Five structure of the embodiment of the invention is: on above architecture basics, stator 4 forms runner 5 each other, and runner 5 shrinks to the impeller outer edge outlet gradually.Can adopt several different methods such as die casting, casting, welding consumables that the stator outer rim is thickeied gradually; Can improve stator intensity, runner 5 is shunk to the impeller outer edge outlet gradually, can further improve hydrodynamic pressure; Can avoid high-pressure liquid to reflux, can reduce damage in impeller and impeller energy consumption.Runner import and runner exit area ratio can be selected 1: 0.618, and better concordant flow, pressure reduce the friction on fluid and stator surface.During impeller work, do not do work in the stator back side, and the stator back side forms low pressure area, and high-pressure spray cognition is back to this district under pressure, forms eddy current at the stator back side, improves impeller energy consumption and damage in impeller greatly.Though runner 5 shrinks to the impeller outer edge outlet gradually; Flow area dwindles gradually, but under the effect of centrifugal acceleration, fluid motion speed improves to the impeller periphery gradually; Under the same Flow area; Fluid motion speed is high more, and flow is big more, does not influence fluid flow so runner 5 shrinks to the impeller outer edge outlet gradually.The degree that runner 5 shrinks to the impeller outer edge outlet gradually is big more, can realize higher pressure more, can improve fluid and runner friction more.Under suitable shrinkage degree, the relation between tunable friction energy loss and pressure improve.
The eddy current impeller of present embodiment can be used as standard equipment, can be more energy-conservation, can produce higher pressure.
Six structure of the embodiment of the invention is: on above architecture basics, vortex chamber's 2 inwall axial thicknesss are thickeied to axis direction gradually.Can vortex chamber's 2 inwalls be arranged to globoidal structure; Can avoid fluid to attach on vortex chamber's 2 inwalls, can make fluid motion more smooth and easy simultaneously, reduce the friction between vortex chamber's 2 inwalls and the fluid; Can reduce energy loss, reduce wall friction in fluid and the vortex chamber 2.Simultaneously can improve eddy current impeller bulk strength, make the eddy current impeller can bear higher rotating speed.
Seven structure of the embodiment of the invention is: on above architecture basics, vortex chamber 2 is to edge attenuation gradually.Can make the gap location between eddy current impeller outer wall and pump case or the Fan casing etc. form taper shape, can avoid escape of liquid better.Vortex chamber 2 can make fluid get into the vortex chamber more smoothly to edge attenuation gradually, reduces the fluid motion resistance, alleviates the axial impact power that fluid causes impeller.The eddy current impeller of present embodiment can be used on multiple mixed flow pump, flow-mixing blower fan or impeller the middle part thicker water pump or blower fan this eddy current impeller profile being set according to original impeller profile.
Eight structure of the embodiment of the invention is: on above architecture basics, two eddy current impellers connect together and form a whole eddy current impeller, and vortex chamber's import 3 opening directions of each eddy current impeller are respectively towards the two ends of eddy current impeller.All stator directions and angle all are consistent, during installation, transmission shaft from the vortex chamber import 3 pass and connect the eddy current impeller and get final product.This eddy current impeller can be used for two turn on pumps, can realize the bigger flow of pump, can reduce pump housing sealing difficulty.
When eddy current impeller of the present invention uses, the eddy current impeller is connected with transmission shaft, transmission shaft drives the rotation of eddy current impeller, makes the fluid import suction from the vortex chamber automatically, one of the formation eddy current that increases progressively of rotating speed from the center to the periphery in the vortex chamber.This eddy current throws away fluid in the vortex chamber; Make fluid get into the fluid passage between stator; In the fluid passage, realize supercharging and speed-raising, fluid is gone out, with the speed that is higher than eddy current impeller edge line speed in the eddy current impeller under the acting in conjunction of eddy current impeller and casing inner wall; Form an eddy current that successively decreases around the rotating speed from the center to the periphery of eddy current impeller high speed rotating in that the eddy current impeller is peripheral, realize supercharging in that eddy current is peripheral.The eddy current of high speed rotating makes high-pressure liquid go out from the casing outlet, accomplishes supercharging, the conveying of convection cell.
The linear velocity at eddy current impeller edge has determined the boosting capability of eddy current impeller; Eddy current impeller of the present invention can be realized higher rotating speed, and the boosting capability of eddy current impeller of the present invention substantially exceeds existing centrifugal impeller, and instead has centrifugal impeller now; Existing equipment can directly be changed this eddy current impeller; Confirm that according to existing equipment centrifugal impeller profile this impeller profile can change this impeller, when existing equipment centrifugal impeller middle part is thicker, can the thickening of middle part, this impeller vortex chamber be got final product.This impeller is more energy-conservation, can reduce noise, vibration, improves service life of equipment, and many-sided performance of equipment is largely increased.
When eddy current impeller of the present invention is used for reactor, can under specific temperature, the fluid of needs reaction be imported in the eddy current impeller in proportion, but fast reaction speed.For making sufficient reacting between the fluid, can make fluid entering eddy current impeller repeatedly, make and fully accomplish reaction between the fluid.
Technological scheme of the present invention is not restricted in the embodiment's of the present invention scope.The present invention not technology contents of detailed description is known technology.
Claims (10)
1. eddy current impeller; Comprise wheel body (1), it is characterized in that: drive shaft connection arrangement (7) is set on the wheel body (1), establishes vortex chamber (2) in the wheel body (1); Vortex chamber (2) offers vortex chamber's import (3) in the middle part; Vortex chamber (2) periphery is provided with a plurality of stators (4), and stator (4) surface is a globoidal structure, and angle is A1 between the tangent line of stator (4) outer rim place arc surface and wheel body (1) radius.
2. eddy current impeller according to claim 1 is characterized in that: on wheel body (1) outer wall annular concave-convex block body (6) is set.
3. eddy current impeller according to claim 1 is characterized in that: the radial distance of vortex chamber's import (3) edge (2) interior cavity edge to the vortex chamber and vortex chamber's import (3) edge are selected 0.618: 1 to the ratio of the radial distance of wheel body outer rim.
4. eddy current impeller according to claim 1 is characterized in that: the surperficial radian of stator (4) equates with eddy current impeller outer edge radian.
5. eddy current impeller according to claim 4 is characterized in that: the angle of A1 is about 30 degree.
6. eddy current impeller according to claim 4 is characterized in that: the angle of A1 is about 0 degree.
7. eddy current impeller according to claim 1 is characterized in that: stator (4) forms runner (5) each other, and runner (5) shrinks to the impeller outer edge outlet gradually.
8. eddy current impeller according to claim 1 is characterized in that: vortex chamber (2) inwall axial thickness is thickeied to axis direction gradually.
9. eddy current impeller according to claim 1 is characterized in that: vortex chamber (2) are to edge attenuation gradually.
10. according to claim 1,2,3,4,5,6,7 or 8 each described eddy current impellers; It is characterized in that: two eddy current impellers connect together and form a whole eddy current impeller, and vortex chamber's import (3) opening direction of each eddy current impeller is respectively towards the two ends of eddy current impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103416481A CN102705261A (en) | 2011-09-20 | 2011-10-18 | Vortex impeller |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110290799.9 | 2011-09-20 | ||
| CN201110290799 | 2011-09-20 | ||
| CN2011103416481A CN102705261A (en) | 2011-09-20 | 2011-10-18 | Vortex impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102705261A true CN102705261A (en) | 2012-10-03 |
Family
ID=46898255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103416481A Pending CN102705261A (en) | 2011-09-20 | 2011-10-18 | Vortex impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102705261A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948345A (en) * | 2012-10-27 | 2013-03-06 | 山西农业大学 | Carbon dioxide (CO2) synergistic-type greenhouse gasification drug application device |
| CN106580221A (en) * | 2016-11-09 | 2017-04-26 | 杭州三花家电热管理系统有限公司 | Distribution impeller, dehumidifier and dishwasher |
| CN109555735A (en) * | 2019-01-05 | 2019-04-02 | 刘时章 | A kind of fluid processing vortex pump |
| CN110864005A (en) * | 2019-12-27 | 2020-03-06 | 温州盛淼工业设计有限公司 | Centrifugal fan impeller |
| CN115199564A (en) * | 2022-06-15 | 2022-10-18 | 中国船舶重工集团公司第七一九研究所 | Integrated pipeline pump |
-
2011
- 2011-10-18 CN CN2011103416481A patent/CN102705261A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948345A (en) * | 2012-10-27 | 2013-03-06 | 山西农业大学 | Carbon dioxide (CO2) synergistic-type greenhouse gasification drug application device |
| CN102948345B (en) * | 2012-10-27 | 2014-10-01 | 山西农业大学 | Carbon dioxide (CO2) synergistic-type greenhouse gasification drug application device |
| CN106580221A (en) * | 2016-11-09 | 2017-04-26 | 杭州三花家电热管理系统有限公司 | Distribution impeller, dehumidifier and dishwasher |
| CN109555735A (en) * | 2019-01-05 | 2019-04-02 | 刘时章 | A kind of fluid processing vortex pump |
| CN110864005A (en) * | 2019-12-27 | 2020-03-06 | 温州盛淼工业设计有限公司 | Centrifugal fan impeller |
| CN110864005B (en) * | 2019-12-27 | 2020-11-27 | 温州盛淼工业设计有限公司 | Centrifugal fan impeller |
| CN115199564A (en) * | 2022-06-15 | 2022-10-18 | 中国船舶重工集团公司第七一九研究所 | Integrated pipeline pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102705261A (en) | Vortex impeller | |
| CN103321748B (en) | Verticle gas turbine | |
| CN103352873B (en) | The spiral flow constant-pressure pump improved | |
| US8858157B2 (en) | Centrifugal pump having an apparatus for the removal of particles | |
| CN106224249A (en) | Low noise self-priming combination pump | |
| CN106438456A (en) | Cyclone pump impeller with spiral structure at front end and design method thereof | |
| CN209180085U (en) | A kind of flow-guiding type air intake centrifugal blower | |
| CN107956737A (en) | Low net positive suction head low-pressure fluctuation centrifugal pump | |
| CN101365882A (en) | Rotor for a rotary machine and a rotary machine | |
| CN206320047U (en) | High-efficiency centrifugal pump | |
| CN101776088A (en) | Impeller | |
| CN101769258A (en) | circulator | |
| CN102434215B (en) | Outer-rotor fluid power machine | |
| CN204900177U (en) | Turbulent flow drag reduction supercharging device | |
| CN101737334A (en) | swirler | |
| CN201771842U (en) | Impeller | |
| CN107762979A (en) | A kind of compact liquefied natural gas immersed pump guide vane structure | |
| CN110080999B (en) | Centrifugal blower | |
| CN203412815U (en) | Improved helical flow constant pressure pump | |
| CN106837822A (en) | A kind of pulsing jet vavuum pump of horizontal water outlet | |
| CN209959557U (en) | Centrifugal blower impeller and centrifugal blower thereof | |
| CN102086892A (en) | Eddy current device | |
| CN101761515A (en) | circulator | |
| CN102384104A (en) | Axial flow impeller | |
| CN111075727A (en) | Vortex pump capable of reducing noise and enhancing self-suction and having super-hydrophobic gas-liquid separation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |