CN109704438A - A kind of orbiting vane cavitation generator - Google Patents
A kind of orbiting vane cavitation generator Download PDFInfo
- Publication number
- CN109704438A CN109704438A CN201811617531.XA CN201811617531A CN109704438A CN 109704438 A CN109704438 A CN 109704438A CN 201811617531 A CN201811617531 A CN 201811617531A CN 109704438 A CN109704438 A CN 109704438A
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- China
- Prior art keywords
- cavitation
- runner
- jet hole
- orbiting vane
- diffuser
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Abstract
The present invention provides a kind of orbiting vane cavitation generators, including shell, cavitation runner, guide vane, sealing ring, mechanical seal, bearing, shaft coupling and motor etc..The cavitation runner includes turntable, cavitation jet hole, blade and annular groove.The cavitation jet hole includes leading portion, diffuser, and the diffuser is bellmouth；The cone angle direction of the bellmouth is along liquid flow direction flaring；The cone angle of the bellmouth is 45~75 degree.When motor drives the rotation of cavitation runner, pressure inside the cavitation runner can radially gradually rise, when high-pressure medium forms high-speed jet and flow into back cavity by cavitation jet hole, due to the variation of the flow section of diffuser, occur local depression in water body, and then generates cavitation.The fluid for flowing through cavitation runner outer rim gap can also generate local depression under the action of annular groove, and then generate cavitation.The configuration of the present invention is simple is compact, structure of the rotating machinery in conjunction with cavitation jet hole, can efficiently handle the organic pollutant in degradation sewage, have wide development space and application prospect.
Description
Technical field
The present invention relates to sewage treatment field, in particular to a kind of orbiting vane cavitation generator.
Background technique
As the density of population is constantly increasing and problem of environmental pollution is increasingly serious, so that drinking water all the time
Supply problem becomes whole world understanding and focus deeply concerned.Due to water shortage, the disinfection treatment of natural water area and to industry, agriculture
The waste water that industry and family generate carries out environmental-friendly, cost-effective mode and recycles, it has also become key all over the world is asked
Topic.In general, water process includes multiple programs of physics, chemical method.In water treatment procedure, disinfection is that destruction cause of disease is micro-
The important step of biology.For many years, various physics and chemical method are widely used in water and disappear.However, traditional physical means are (such as
Heating, radiation, microwave, filtering and plasma) it is generally more costly, the processing time is long, but processing capacity is small.In addition, chemistry side
Method may cause mutagenesis and the formation of carcinogenic chemical disinfection byproducts or niff.In addition, chemical method is hidden in loose mine
Bed or biomembrane or the bacterium with relatively high drug resistance are almost invalid.In order to overcome these disadvantages, it is necessary to
Exploitation substitution, effective and safe sterilization method.
Hydrodynamic cavitation is a kind of hydrodynamics phenomenon.The vacuole generated during Hydrodynamic cavitation is moved and is collapsed in a liquid
When provide localized hyperthermia's high pressure, shine, electric discharge, strong shock wave, the extreme conditions such as high-speed jet can strengthening physical and chemistry
Process can such as make hydrone that chemical bond rupture occur in cavitation bubble, generate free radicals, and then reach degradable organic pollutant
Purpose.Existing cavitation generator mostly uses simple orifice plate or fluidic architecture, it is easy to and it is incomplete Cavitation occur,
Still residual organic contaminants in the sewage that leads to that treated, needing to carry out further Hydrodynamic cavitation degradation just can achieve dirt
The final purpose of water process.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of orbiting vane cavitation generator, structure letters
Single compact, structure of the rotating vane in conjunction with cavitation jet hole can efficiently handle the organic pollutant in degradation sewage, tool
There are wide development space and application prospect.
The present invention achieves the above technical objects by the following technical means.
A kind of orbiting vane cavitation generator, which is characterized in that including front shroud, runner nut, cavitation runner, sealing
Circle, middle housing, guide bearing, rear piece housing, motor cabinet, bearing block, thrust bearing, motor, shaft coupling, bearing gland, sealing
Lid, mechanical seal and axis；One end of the axis passes through guide bearing, is fixed after installing cavitation runner by runner nut；It is described
The other end of axis sequentially passes through motor cabinet, mechanical seal sealing cover, bearing block, passes through shaft coupling after thrust bearing and bearing gland
Device is connected to motor；Piece housing and motor are connected and fixed by motor cabinet after described, and the mechanical seal is fixed on motor cabinet
Under it is intracavitary, and fixed by sealing cover and bearing block；The thrust bearing is mounted on bearing block, and solid by bearing gland
It is fixed.
Further, the cavitation runner includes turntable, cavitation jet hole, blade and annular groove；The shape packet of the blade
Include twisted blade, cylinder blade and prismatic blade；The blade includes suction surface and pressure face.
Further, there is gap between the cavitation runner and middle housing, the gap and cavitation jet hole make the rotation
The import of rotary vane cavitation generator and outlet.
Further, cavitation jet hole present position is 0.7~0.95 times of position of cavitation runner outer diameter.
Further, the cavitation jet hole includes leading portion and diffuser；The diffuser is bellmouth；The diffuser
Smaller diameter end is connect with leading portion, and the cone angle direction of the bellmouth is along liquid flow direction flaring.
Further, inlaid hole set in the cavitation jet hole, can by the diffuser that hole covers solder dam object come
Cavitation efficiency is improved, the barrier does not influence the actual circulation ability in cavitation jet hole.
Further, which is characterized in that the internal diameter of the leading portion is 0.001~0.01 times of front shroud internal diameter；The leading portion
Radially closer to cavitation roller centre axis, internal diameter is smaller；The leading portion is circumferentially got in the runner between adjacent blades
Close to suction surface, internal diameter is bigger, and circumferentially closer to pressure face, internal diameter is smaller；Positioned at turntable outer most edge, near pressure
The internal diameter of the leading portion in face is minimum.
Further, the axial distance between the adjacent cavitation jet hole be biggish diffuser maximum gauge 1.2~
1.3 again.
Further, the annular groove depth is 2~4 times of gap width, and annular groove width is 1~2 times of gap width；It is adjacent
The spacing of annular groove is 2~10 times of gap width.
Further, the cavity thickness between the cavitation runner and the middle housing is the 1~2 of turntable outer rim thickness
Times.
Further, the cavity wall surface of the middle housing leading portion installation cavitation runner needs to do cure process, the cavitation
The wall surface of runner and annular groove needs to do cure process；The cure process includes nitriding, pile-up welding hard alloy and shot-peening.
Further, the inside cavity of the middle housing 5 is machined with guide vane 5a and guide bearing seat 5b, and the guide bearing 6 is pacified
In the inner hole of guide bearing seat 5b.
The beneficial effects of the present invention are:
1. orbiting vane cavitation generator of the present invention passes through gap, cavitation jet hole and cavitation jet hole
Including leading portion, diffuser and barrier, the organic pollutant in degradation sewage can be efficiently handled.
2. orbiting vane cavitation generator of the present invention, under the action of high pressure, sewage through cavitation jet hole with
And gap flows into downstream, by the effect of cavitation runner, so that the significantly more efficient degradation of organic pollutant, cavitation are high-efficient.
Detailed description of the invention
Fig. 1 is orbiting vane cavitation generator structure chart of the present invention.
Fig. 2 is cavitation rotaring wheel structure figure of the present invention.
Fig. 3 is cavitation jet hole of the present invention and gap enlarged drawing.
In figure:
1- front shroud；2- runner nut；3- cavitation runner；4- sealing ring；5- middle housing；6- guide bearing；7- back segment shell
Body；8- motor cabinet；9- bearing block；10- thrust bearing；11- motor；12- shaft coupling；13- bearing gland；14- sealing cover；15-
Mechanical seal；16- axis；3a- turntable；3b- cavitation jet hole；3c- blade；3d- annular groove；The gap 3e-；3b1- leading portion；3b2- expands
Dissipate section；3b3- barrier；3c1- suction surface；3c2- pressure face；5a- guide vane；5b- guide bearing seat.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As depicted in figs. 1 and 2, orbiting vane cavitation generator of the present invention, including front shroud 1, runner nut
2, cavitation runner 3, sealing ring 4, middle housing 5, guide bearing 6, rear piece housing 7, motor cabinet 8, bearing block 9, thrust bearing 10, electricity
Machine 11, shaft coupling 12, bearing gland 13, sealing cover 14, mechanical seal 15 and axis 16.One end of the axis 16 passes through guide bearing
6, it is fixed after cavitation runner 3 is installed by runner nut 2.The other end of the axis 16 sequentially passes through motor cabinet 8, mechanical seal 15
It is connect by shaft coupling 12 with motor 11 after sealing cover 14, bearing block 9, thrust bearing 10 and bearing gland 13.The back segment
Shell 7 and motor 11 are connected and fixed by motor cabinet 8, the mechanical seal 15 be fixed on it is intracavitary under motor cabinet 8, and by close
Capping 14 is fixed with bearing block 9.The thrust bearing 10 is mounted on bearing block 9, and fixed by bearing gland 13.The sky
Changing runner 3 includes turntable 3a, cavitation jet hole 3b, blade 3c and annular groove 3d.The shape of the blade 3c includes twisted blade,
Cylinder blade and prismatic blade.The cavitation jet hole 3b includes leading portion 3b1 and diffuser 3b2.The blade 3c includes suction
Face 3c1 and pressure face 3c2.The inside cavity of the middle housing 5 is machined with guide vane 5a and guide bearing seat 5b, the guide bearing 6
It is mounted in the inner hole of guide bearing seat 5b, effect that there are two the guide vanes, first is that water conservancy diversion, second is that fixed guide bearing seat 5b.
As shown in Figures 2 and 3, by taking hole 21 occurs for level-one cavitation as an example, have between the cavitation runner 3 and middle housing 5
Gap 3e, the gap 3e and cavitation jet hole 3b make import and the outlet of the orbiting vane cavitation generator.Institute
State 0.7~0.95 times of position that the cavitation jet hole present position 3b is 3 outer diameter of cavitation runner.Before the cavitation jet hole 3b includes
Section 3b1 and diffuser 3b2；The diffuser 3b2 is bellmouth；The smaller diameter end of the diffuser 3b2 is connect with leading portion 3b1,
The cone angle direction of the bellmouth is along liquid flow direction flaring.Inlaid hole set in the cavitation jet hole 3b, can by
Solder dam object 3b3 improves cavitation efficiency in the diffuser 3b2 of hole set, and the barrier 3b3 do not influence cavitation jet hole 3b
Actual circulation ability.The internal diameter of the leading portion 3b1 is 0.001~0.01 times of 1 internal diameter of front shroud；When the internal diameter of leading portion 3b1
It when greater than 0.01 times of 1 internal diameter of front shroud, will lead to inside the 3b of cavitation jet hole that flow velocity is lower, cavitation effect can not be generated；When
When the internal diameter of leading portion 3b1 is less than 0.001 times of 1 internal diameter of front shroud, flow can be caused to decline due to obstruction flow phenomenon, lead to this hair
The decline of bright degradation efficiency.For the leading portion 3b1 radially closer to 3 central axis of cavitation runner, internal diameter is smaller；The leading portion
3b1 is in the runner between adjacent blades 3c, and circumferentially closer to suction surface 3c1, internal diameter is bigger, circumferentially closer to pressure
Face 3c2, internal diameter are smaller；Positioned at turntable 3a outer most edge, it is minimum near the internal diameter of the leading portion 3b1 of pressure face 3c2.It is described adjacent
Axial distance between the 3b of cavitation jet hole is 1.2~1.3 times of biggish diffuser 3b2 maximum gauge, to guarantee cavitation
It is fully developed.
Since barrier 3b3 is directly arranged in diffuser 3b2, it is difficult there is manufacture.It manufactures, such as schemes in order to facilitate processing
Shown in 3, in cavitation jet hole, 3b is embedded in covers with the consistent hole of cavitation jet hole 3b shape, and hole set is internal can be with solder dam object
3b3.The mode for being embedded in barrier 3b3 can be threaded connection or hot jacket interference.The barrier 3b3 does not influence cavitation jet
The actual circulation ability of hole 3b.The material of hole set uses hard alloy.The cross section of the barrier 3b3 can be circle, three
Angular, quadrangle or polygon.Barrier 3b3 quantity in each cavitation jet hole 3b is 3~5.
The annular groove 3d depth is 2~4 times of gap 3e width, and annular groove 3d width is 1~2 times of gap 3e width；Phase
The spacing of adjacent annular groove 3d is 2~10 times of gap 3e width, to guarantee the complete generation of the intensity requirement and cavitation of structure.Institute
1~2 times that the cavity thickness between cavitation runner 3 and the middle housing 5 is turntable 3a outer rim thickness is stated, to guarantee cavitation
It is fully developed.The cavity wall surface of 5 leading portion of the middle housing installation cavitation runner 3 needs to do cure process, the cavitation runner 3
It needs to do cure process with the wall surface of annular groove 3d；The cure process includes nitriding, pile-up welding hard alloy or shot-peening, increases wall surface
Impact resistance.
Working principle are as follows:
Motor 11 drives cavitation runner 3 to rotate, and under the blade 3c turning effort of cavitation runner 3, wastewater media is by front cover
The inner hole of plate 1 flows into, and flows into middle housing 5 by cavitation jet hole 3b and gap 3e, after the water conservancy diversion of guide vane, flows into back segment
Shell 7, and flowed out from the exit of rear piece housing 7.Wastewater media is when by cavitation jet hole 3b, due to subtracting for flow section
Small, flow velocity is got higher herein.With the sharply expansion of the flow section in diffuser 3b2, it is low that wastewater media generates part here
Cavitation occurs for pressure.Meanwhile under the booster action of barrier 3b3, cavitation efficiency is improved.With this simultaneously as cavitation runner 3
Gap 3e between middle housing 5 cannot be eliminated, therefore be added to annular groove 3d here, when sewage flows through annular groove 3d, by
In the unexpected increase of flow section, local depression is generated, cavitation occurs.Chemical bond rupture occurs in cavitation bubble, produces for sewage
Raw free radical, and then the purpose of degradable organic pollutant reaches.
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not
In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement
Or modification all belongs to the scope of protection of the present invention.
Claims (12)
1. a kind of orbiting vane cavitation generator, it is characterised in that: including front shroud (1), runner nut (2), cavitation runner
(3), sealing ring (4), middle housing (5), guide bearing (6), rear piece housing (7), motor cabinet (8), bearing block (9), thrust bearing
(10), motor (11), shaft coupling (12), bearing gland (13), sealing cover (14), mechanical seal (15) and axis (16)；It is described
One end of axis (16) passes through guide bearing (6), and installation cavitation runner (3) is fixed by runner nut (2) afterwards；The axis (16) it is another
One end sequentially passes through motor cabinet (8), mechanical seal (15) sealing cover (14), bearing block (9), thrust bearing (10) and bearing pressure
Lid (13) is connect by shaft coupling (12) with motor (11) afterwards；Piece housing (7) and motor (11) are connected by motor cabinet (8) after described
Fixation is connect, the mechanical seal (15) is fixed on intracavitary under motor cabinet (8) and solid by sealing cover (14) and bearing block (9)
It is fixed；The thrust bearing (10) is mounted on bearing block (9), and fixed by bearing gland (13).
2. orbiting vane cavitation generator according to claim 1, it is characterised in that: the cavitation runner (3) includes
Turntable (3a), cavitation jet hole (3b), blade (3c) and annular groove (3d)；The shape of the blade (3c) includes twisted blade,
Cylinder blade and prismatic blade；The blade (3c) includes suction surface (3c1) and pressure face (3c2).
3. orbiting vane cavitation generator according to claim 1 or 2, it is characterised in that: the cavitation runner (3) with
Have between middle housing (5) gap (3e), the gap (3e) and cavitation jet hole (3b) send out the orbiting vane cavitation
The import of raw device and outlet.
4. orbiting vane cavitation generator according to claim 2, it is characterised in that: cavitation jet hole (3b) institute
Locate 0.7~0.95 times of position that position is cavitation runner (3) outer diameter.
5. orbiting vane cavitation generator according to claim 2, it is characterised in that: cavitation jet hole (3b) packet
Include leading portion (3b1) and diffuser (3b2)；The diffuser (3b2) is bellmouth；The smaller diameter end of the diffuser (3b2) with
Leading portion (3b1) connection, the cone angle direction of the bellmouth is along liquid flow direction flaring.
6. orbiting vane cavitation generator according to claim 2, it is characterised in that: in the cavitation jet hole (3b)
Inlaid hole set can pass through interior solder dam object (3b3) the Lai Tigao cavitation efficiency of the diffuser (3b2) covered in hole, the obstacle
Object (3b3) does not influence the actual circulation ability in cavitation jet hole (3b).
7. according to the described in any item orbiting vane cavitation generators of claim 4 or 5, it is characterised in that: the leading portion
The internal diameter of (3b1) is 0.001~0.01 times of front shroud (1) internal diameter；The leading portion (3b1) is radially closer to cavitation runner
(3) central axis, internal diameter are smaller；The leading portion (3b1) is in the runner between adjacent blades (3c), circumferentially closer to suction
Face (3c1), internal diameter is bigger, and circumferentially closer to pressure face (3c2), internal diameter is smaller；Positioned at turntable (3a) outer most edge, near
The internal diameter of the leading portion (3b1) of nearly pressure face (3c2) is minimum.
8. according to orbiting vane cavitation generator described in claim 2-7, it is characterised in that: the adjacent cavitation jet hole
Axial distance between (3b) is 1.2~1.3 times of biggish diffuser (3b2) maximum gauge.
9. orbiting vane cavitation generator according to claim 2, it is characterised in that: between annular groove (3d) depth is
2~4 times of gap (3e) width, annular groove (3d) width are 1~2 times of gap (3e) width；Between the spacing of adjacent annular groove (3d) is
2~10 times of gap (3e) width.
10. orbiting vane cavitation generator according to claim 1, it is characterised in that: the cavitation runner (3) and institute
State 1~2 times that the cavity thickness between middle housing (5) is turntable (3a) outer rim thickness.
11. orbiting vane cavitation generator according to claim 1, it is characterised in that: middle housing (5) leading portion
The cavity wall surface of installation cavitation runner (3) needs to do cure process, and the cavitation runner (3) and the wall surface needs of annular groove (3d) are done
Cure process；The cure process includes nitriding, pile-up welding hard alloy or shot-peening.
12. orbiting vane cavitation generator according to claim 1, it is characterised in that: the chamber of the middle housing (5)
Internal portion is machined with guide vane (5a) and guide bearing seat (5b), and the guide bearing (6) is mounted in the inner hole of guide bearing seat (5b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617531.XA CN109704438A (en) | 2018-12-28 | 2018-12-28 | A kind of orbiting vane cavitation generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617531.XA CN109704438A (en) | 2018-12-28 | 2018-12-28 | A kind of orbiting vane cavitation generator |
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| Publication Number | Publication Date |
|---|---|
| CN109704438A true CN109704438A (en) | 2019-05-03 |
Family
ID=66258833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811617531.XA Pending CN109704438A (en) | 2018-12-28 | 2018-12-28 | A kind of orbiting vane cavitation generator |
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| CN (1) | CN109704438A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902756A (en) * | 2019-11-22 | 2020-03-24 | 江苏大学 | Sewage green treatment device |
| CN112028170A (en) * | 2020-07-13 | 2020-12-04 | 江苏大学 | Turbine hydrodynamic cavitation generator |
| WO2022222565A1 (en) * | 2021-04-20 | 2022-10-27 | 中国石油大学(华东) | Hydrodynamic cavitation generation apparatus and method |
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| CN202030601U (en) * | 2010-12-28 | 2011-11-09 | 黄一宪 | Hydrodynamic cavitation seawater desalination system |
| CN102417233A (en) * | 2011-09-29 | 2012-04-18 | 太原卫安环保科技有限公司 | Hydrodynamic cavitation oxygenation aerator |
| CN207463479U (en) * | 2017-10-25 | 2018-06-08 | 西南交通大学 | A kind of cavitation jet washer jet and system based on active control |
| CN207525011U (en) * | 2017-07-14 | 2018-06-22 | 核工业理化工程研究院 | A kind of big flux Hydrodynamic cavitation generator based on Venturi tube |
| CN108421756A (en) * | 2018-04-24 | 2018-08-21 | 浙江理工大学 | A kind of cavitation jet cleaning cavitation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202030601U (en) * | 2010-12-28 | 2011-11-09 | 黄一宪 | Hydrodynamic cavitation seawater desalination system |
| CN102417233A (en) * | 2011-09-29 | 2012-04-18 | 太原卫安环保科技有限公司 | Hydrodynamic cavitation oxygenation aerator |
| CN207525011U (en) * | 2017-07-14 | 2018-06-22 | 核工业理化工程研究院 | A kind of big flux Hydrodynamic cavitation generator based on Venturi tube |
| CN207463479U (en) * | 2017-10-25 | 2018-06-08 | 西南交通大学 | A kind of cavitation jet washer jet and system based on active control |
| CN108421756A (en) * | 2018-04-24 | 2018-08-21 | 浙江理工大学 | A kind of cavitation jet cleaning cavitation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902756A (en) * | 2019-11-22 | 2020-03-24 | 江苏大学 | Sewage green treatment device |
| CN110902756B (en) * | 2019-11-22 | 2021-11-23 | 江苏大学 | Sewage green treatment device |
| CN112028170A (en) * | 2020-07-13 | 2020-12-04 | 江苏大学 | Turbine hydrodynamic cavitation generator |
| WO2022222565A1 (en) * | 2021-04-20 | 2022-10-27 | 中国石油大学(华东) | Hydrodynamic cavitation generation apparatus and method |
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