CN202465368U - Impeller of deep submerged aerator - Google Patents
Impeller of deep submerged aerator Download PDFInfo
- Publication number
- CN202465368U CN202465368U CN2011204689759U CN201120468975U CN202465368U CN 202465368 U CN202465368 U CN 202465368U CN 2011204689759 U CN2011204689759 U CN 2011204689759U CN 201120468975 U CN201120468975 U CN 201120468975U CN 202465368 U CN202465368 U CN 202465368U
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- CN
- China
- Prior art keywords
- impeller
- blade
- cover plate
- hub
- blades
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to an impeller of a deep submerged aerator. The impeller comprises blades, an impeller front cover plate, an impeller rear cover plate, a hub, an impeller inlet and a key slot; an impeller (2) is connected with the tail end of a motor shaft through the hub (11); the impeller inlet (12) is connected with the impeller front cover plate (8); the impeller front cover plate (8) is connected with a lateral surface of each blade, and the other lateral surfaces of the blades are connected with the impeller rear cover plate (9); the impeller front cover plate (8) is connected with the hub (11); and the key slot (13) is positioned in the hub (11). The impeller takes the shape of a gear; the blades are straight blades and are 3 to 9 in number; the included angle A between the blade working face and the plane of an outlet at the impeller outlet end ranges from 30 degrees to 60 degrees, so that the reliability of the root of the impeller can be ensured; the impeller front cover plate, the impeller rear cover plate and the blades are all made of stainless steel and formed through stamping; the impeller is connected with the tail end of the motor shaft through the hub, and all parts of the impeller are connected in a welding manner, so that the deep submerged aerator has the advantages of larger aeration depth, longer time of contact of bubbles and sewage water, good aeration effect, and high efficiency.
Description
Technical field
The utility model relates to a kind of deep layer underwater jet aeration machine impeller that is used for WWT, and the deep layer diving of a kind of new-type structure of more specifically saying so is from the bleed aeration machine impeller.
Background technology
At present; Most countries sewage and trade effluent adopt Wastewater Treated by Activated Sludge Process; In the biological process of Wastewater Treated by Activated Sludge Process sewage, need a large amount of dissolved oxygens, aerator be most important in the sewage aerobic biological treatment system also be the highest equipment of running expense.The underwater jet aeration machine is a kind of novelty, environmental protection, energy-conservation submarine mechanical aerator, is topmost mechanical means in the oxidation ditch Wastewater Treated by Activated Sludge Process system, is one of key that influences oxidation ditch processing efficiency, energy consumption and operation stability.Be characterized in taking up an area of little; No foul smell is excessive, with out splashly outer spatters noiseless etc.; Have oxygenation, stirring, mixing functions; Like disclosed technical scheme among Chinese patent CN 2481704Y, CN2823252Y, the CN 101200330A, be ganoid helical runner but the aeration machine impeller in these schemes all adopts, the structure formation of aeration machine impeller is not made innovation.Along with the day of land resources is becoming tight; Aeration tank in the sewage treatment process is gradually to vertical depth development; Just so-called deep water aerating activated sludge process (the aeration degree of depth is generally greater than 5m); In the deep water aerating activated sludge process, generally adopt deep layer underwater jet aeration machine, especially deep layer diving is from the bleed aerator, and impeller is unique acting parts of deep layer underwater jet aeration machine; The size of impeller adiabatic efficiency has directly influenced the efficient and the energy consumption of deep layer underwater jet aeration machine, and the safety of impeller has also determined the maintenance cost of deep layer underwater jet aeration machine simultaneously.
The utility model content
The purpose of the utility model provides a kind of safety, deep layer underwater jet aeration machine impeller that efficient is high, and especially deep layer diving is from the bleed aeration machine impeller.
The purpose of the utility model is realized by following deep layer underwater jet aeration machine impeller.
A kind of deep layer underwater jet aeration machine impeller comprises impeller (2), front shroud of impeller (8), back shroud of impeller (9), blade (10), wheel hub (11), impeller inlet (12), keyway (13), front side of vane (14) and impeller outlet side (15); Impeller (2) links to each other through wheel hub (11) and motor shaft are terminal; Impeller inlet (12) links to each other with front shroud of impeller (8); Front shroud of impeller (8) links to each other with the side of blade (10); The another side of blade links to each other with the back shroud of impeller (9), and front shroud of impeller (8) links to each other with wheel hub (11), and keyway (13) is positioned at wheel hub (11).
Impeller (2) is a gear shape, and blade (10) is a straight blade, and the number of blade is between 3～9; The scope of front side of vane (14) and impeller outlet side (14) pelvic outlet plane included angle A is between 30 ℃～60 ℃; Front shroud of impeller (8), back shroud of impeller (9) and blade (10) all adopt stainless steel to be stamped to form, and front shroud of impeller (8) and blade (10) all adopt the form of welding to be connected between the back shroud of impeller (9) and blade (10), front shroud of impeller (8) and wheel hub (11).
For realizing above-mentioned utility model purpose, a kind of deep layer diving that the utility model provides comprises blade, front shroud of impeller, back shroud of impeller, wheel hub, impeller inlet, keyway from the bleed aeration machine impeller; The similar gear type of impeller shape, blade are straight blade, and the scope of front side of vane and impeller outlet side pelvic outlet plane included angle A is between 30 °～60 °; Guaranteed the safety of impeller root, impeller front and rear cover plate and blade all adopt stainless steel to be stamped to form, and impeller links to each other through wheel hub and motor shaft are terminal; Impeller inlet links to each other with front shroud of impeller; Front shroud of impeller links to each other with the one side of blade, and the another side of blade links to each other with the back shroud of impeller, and front shroud of impeller links to each other with wheel hub; All adopt the form of welding to connect between each parts, keyway leaves in wheel hub.
The number of blade of impeller is between 3～9 in the utility model.
The concrete mode of operation of the utility model is: submersible machine energising back impeller high speed rotating, because the high speed rotating of motor, impeller produces powerful cf-; Under action of centrifugal force, form negative pressuren zone around the impeller, thereby produce self-suction; Through air suction pipe a large amount of fresh airs in the atmosphere are constantly sucked; Impeller sucks mixing section with sewage again simultaneously, and the collision of sewage and inhaled air generation gas-liquid forms a large amount of bubbles and passes through diffuser tube to spraying all around in mixing section, the effect of the gas-liquid mixed stream stirring convection current of ejecting; Because the aeration degree of depth is dark (generally in 6～8m); The time that bubble contacts with sewage is longer, and the oxygen molecule of from air, transferring to like this in the sewage just increases greatly, and then has increased the aeration effect.
The beneficial effect of the utility model is, same comparing with prior art, and this type deep layer diving is darker from the bleed aerator aeration degree of depth, and bubble and sewage are longer duration of contact, and the aerator aeration is effective, whole aeration efficient height.
Description of drawings
For the content that makes the utility model is understood more easily,, the utility model content is done further detailed explanation, wherein below according to the embodiment of the utility model and combine accompanying drawing
Fig. 1 is that deep layer diving is from bleed aerator sketch;
Fig. 2 is a deep layer underwater jet aeration machine impeller sketch;
Fig. 3 is the sectional view of impeller along the direction that parallels to the axis;
Fig. 4 is the sectional view of impeller along the vertical axis direction;
Among Fig. 1-4: 1. submersible machine, 2. impeller, 3. diffuser tube, 4. mixing section, 5. inlet pipe; 6. sourdine, 7. feet, 8. front shroud of impeller, 9. back shroud of impeller, 10. blade; 11. wheel hub, 12. impeller inlets, 13. keyways, 14. front side of vanes, 15. impeller outlet sides.
Embodiment
Can be found out that by Fig. 2,3 impeller (2) overall structure form is similar gear shape, the purpose of design is in order to strengthen the intensity of impeller (2) root on the one hand like this; Increase the life-span of impeller (2), on the other hand, through the analysis revealed of commercial fluid example analysis software to impeller (2) smoothness; The efficient of the impeller of similar gear shape (2) is also higher; Blade (10) is designed to straight blade, and the scope of the pelvic outlet plane included angle A of front side of vane (14) and impeller outlet side (15) has been guaranteed the safety of impeller root between 30 °～60 °; Front shroud of impeller (8), back shroud of impeller (9) and blade (10) all adopt stainless steel to be stamped to form; Impeller (2) links to each other through wheel hub (11) and motor shaft are terminal, all adopts the form of welding to connect in the impeller (2) between each parts, and keyway (13) leaves in wheel hub (11).
Can be found out that by Fig. 4 blade (10) is straight blade, and is easy to process, blade (10) is welded between the front and rear cover plate of impeller (2), and the whole processing of impeller (2) is also more convenient, has practiced thrift manufacturing cost.
Shown in Fig. 1～4, submersible machine (1) energising back impeller (2) high speed rotating is because the high speed rotating of motor; Impeller (2) produces powerful cf-, and under action of centrifugal force, impeller (2) forms negative pressuren zone on every side; Thereby generation self-suction; Through air suction pipe (5) a large amount of fresh airs in the atmosphere are constantly sucked, the air that is inhaled into flows out impeller outlet side (15) through impeller inlet (12) back with the effusive form, and impeller (2) sucks sewage in the mixing section (4) again under the effect of front side of vane (14) simultaneously; The collision of sewage and inhaled air generation gas-liquid forms a large amount of bubbles and passes through diffuser tube (3) to spraying all around in mixing section (4); The gas-liquid mixed stream that ejects stirs the effect of convection current, because the aeration degree of depth dark (generally in 6～8m), the time that bubble contacts with sewage is longer; The oxygen molecule of from air, transferring to like this in the sewage just increases greatly, and then has increased the aeration effect.
Claims (4)
1. deep layer underwater jet aeration machine impeller comprises impeller (2), front shroud of impeller (8), back shroud of impeller (9), blade (10), wheel hub (11), impeller inlet (12), keyway (13), front side of vane (14) and impeller outlet side (15); Impeller (2) links to each other through wheel hub (11) and motor shaft are terminal; Impeller inlet (12) links to each other with front shroud of impeller (8); Front shroud of impeller (8) links to each other with the side of blade (10); The another side of blade links to each other with the back shroud of impeller (9), and front shroud of impeller (8) links to each other with wheel hub (11), and keyway (13) is positioned at wheel hub (11).
2. deep layer underwater jet aeration machine impeller according to claim 1, it is characterized in that: impeller (2) is a gear shape, and blade (10) is a straight blade, and the number of blade is between 3～9.
3. deep layer underwater jet aeration machine impeller according to claim 1 is characterized in that: the scope of front side of vane (14) and impeller outlet side (14) pelvic outlet plane included angle A is between 30 °～60 °.
4. deep layer underwater jet aeration machine impeller according to claim 1; It is characterized in that: front shroud of impeller (8), back shroud of impeller (9) and blade (10) all adopt stainless steel to be stamped to form; Front shroud of impeller (8) and blade (10); All adopt the form of welding to be connected between back shroud of impeller (9) and the blade (10), front shroud of impeller (8) and wheel hub (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204689759U CN202465368U (en) | 2011-11-18 | 2011-11-18 | Impeller of deep submerged aerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204689759U CN202465368U (en) | 2011-11-18 | 2011-11-18 | Impeller of deep submerged aerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465368U true CN202465368U (en) | 2012-10-03 |
Family
ID=46913548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204689759U Expired - Fee Related CN202465368U (en) | 2011-11-18 | 2011-11-18 | Impeller of deep submerged aerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242098A (en) * | 2016-11-04 | 2016-12-21 | 台州天渔增氧设备科技有限公司 | A kind of impeller of aeration oxygen increasing machine |
| CN113697971A (en) * | 2021-07-26 | 2021-11-26 | 吉林大学 | Submersible aerator |
-
2011
- 2011-11-18 CN CN2011204689759U patent/CN202465368U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242098A (en) * | 2016-11-04 | 2016-12-21 | 台州天渔增氧设备科技有限公司 | A kind of impeller of aeration oxygen increasing machine |
| CN113697971A (en) * | 2021-07-26 | 2021-11-26 | 吉林大学 | Submersible aerator |
| CN113697971B (en) * | 2021-07-26 | 2022-07-12 | 吉林大学 | Submersible aerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121003 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |