CN200985305Y - Impeller for surface aerator - Google Patents
Impeller for surface aerator Download PDFInfo
- Publication number
- CN200985305Y CN200985305Y CNU2006201254665U CN200620125466U CN200985305Y CN 200985305 Y CN200985305 Y CN 200985305Y CN U2006201254665 U CNU2006201254665 U CN U2006201254665U CN 200620125466 U CN200620125466 U CN 200620125466U CN 200985305 Y CN200985305 Y CN 200985305Y
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- CN
- China
- Prior art keywords
- impeller
- impeller body
- hole
- aeration machine
- air
- 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 - Lifetime
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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
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an impeller positioned at a surface aeration machine which comprises an impeller body and a plurality of blades (4) which are fixed with a formation of radiation at the impeller body which is provided with a cone (3) is equipped with a formation of radiation a water jet device (9) which consists of a jet nozzle (10), a vacuum air suction chamber (11) and an air-liquid mixed diffuser (13) which have a coaxial connect in turn, wherein an inlet terminal of the jet nozzle (10) is connected with a central through hole of the impeller body; the vacuum air suction chamber (11) is equipped with a through hole (12) for air suction which is connected with a concave side of the cone (3). When the impeller of surface aeration machine rotates for work, the water jet device raising the water at the shallow or medium layer for a jet, accompanied with a mixture diffusion under negative pressure of air suction, can greatly enhance the oxygenation capacity without increasing the power consumption so as to lower the cost for a sewage purification and raise the sewage treatment capacity.
Description
Technical field
The utility model relates to the impeller of the surface aeration machine that a kind of aeration in sewage treatment oxygenation uses.
Background technology
Surface aeration machine is the key equipment that the city sewage treatment works oxidation ditch uses, the impeller of traditional inversed umbrella type surface aeration machine, its shape all resembles one and is falling the paper shape umbrella of opening, be installed in the water surface of oxidation ditch, adopt mechanical reduction to drive rotation, scrape the water plug-flow by several blades on the impeller and hold under the arm and wrap up in air,, reach the water purifying purpose by oxygen dissolution water oxygen organism.Because blade can only push away water and rotate, blade bump water causes bubble cracked, flows to disorder, is difficult to improve after surperficial dissolved oxygen reaches certain value again, and it is not fine causing the aeration effect, and dynamic efficiency is low, generally can only reach 1.6-2.4kgO
2/ kWh the highlyest also can only reach 2.5-2.6kgO
2/ kWh makes the energy consumption cost in China's municipal sewage treatment cost high.
Summary of the invention
The utility model provides a kind of impeller of surface aeration machine, adopts the aeration function of this impeller to change the sewage fluidised form, increases substantially the aeration aerating efficient of oxidation ditch shallow-layer and intermediate water, reduces the energy consumption and the power charge of sewage disposal.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows: a kind of impeller of surface aeration machine, it comprises impeller body and blade, impeller body is for falling umbrella, its middle part is provided with central through hole, blade is fixed on the impeller body radially, be furnished with water sprayer on the cone of described impeller body radially, described water sprayer is made of the coaxial in turn connection of spray tube, vacuum suction chamber and gas-liquid mixed diffuser tube, the entrance end of spray tube leads to the central through hole of impeller body, the vacuum suction chamber is provided with air-breathing through hole, and air-breathing through hole leads to concave surface one side of impeller body cone.
The tail end of described spray tube is drawn close to the water sprayer axis gradually and is formed frustum and stretch in the vacuum suction chamber.Described gas-liquid mixed diffuser tube tail end is horn-like.The impeller body of described water sprayer either side or both sides is provided with air-breathing through hole.
Be evenly equipped with the gas-liquid mixed pipe radially on the outer convex surface of cone more than the skeleton supporting face of described impeller body, the impeller body of the inner ingress of gas-liquid mixed pipe is provided with air-breathing through hole.The impeller body of described gas-liquid mixed pipe either side or both sides is provided with a plurality of air-breathing through holes.
The impeller body of described blade either side or both sides is provided with a plurality of air-breathing through holes.The upper surface of described blade or lower surface are dentation, and perhaps upper and lower end face is dentation.Be positioned at the linearly or arc shaped of blade edge of the outer convex surface of impeller body.
After adopting above technical scheme, the impeller cone is pressed water surface rotation, surface water is thrown away by centrifugal with the blade and the gas-liquid mixing tube of rotation, the side of the side of blade, gas-liquid mixed pipe and the inner all form negative pressuren zone, and air forms the hoop sprinkling after then entering gas-liquid mixed Guan Yushui thorough mixing by the negative inspiratory pressure through hole.Shallow-layer or intermediate water then enter water sprayer under the centrifugal action due to the impeller rotation, the spray tube of water sprayer is borrowed the centrifugal force high-velocity jet, produce negative inspiratory pressure at vacuum suction chamber section, air sucks from the air-breathing through hole of vacuum suction chamber, water then sprays at a high speed from spray tube, because the spray tube tail end is frustum, has further improved the flow velocity of water.Air of being inhaled and water enter the gas-liquid mixed diffuser tube simultaneously after the vacuum suction chamber is converged, because gas-liquid mixed diffuser tube tail end is horn-like, water and air is fully violent in the gas-liquid mixed diffuser tube to mix the back diffusion, gas liquid mixture by centrifugation to around hoop spray.When the upper and lower end face of blade is dentation, the water of contact with it there is combing effect, plays the effect of rectification, current stabilization, the current attitude after the oxygenation is improved.
The surface water of sewage by the blade ring of aeration impeller to plug-flow, the gas-liquid mixed pipe carries out gas-liquid mixed by means of centrifugation, shallow-layer, intermediate water then borrows the centrifugation negative pressure lifting of water sprayer to carry out gas-liquid mixed, the trinity like this, mechanical movement and liquid motion characteristic have been utilized fully, under the prerequisite that does not increase power consumption, fully dissolve air and water mixed, airborne oxygen is fully used, reach the best effect of aeration aerating, compare, the dynamic efficiency of aeration aerating is brought up to more than 80% with existing traditional aerator, reduce the power consumption expense of aeration aerating, every processing 1m
3Sewage can be saved more than 1 mao.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the upward view of Fig. 1
Fig. 3 is the planar radial section synoptic diagram of bending for blade
Fig. 4 is the water sprayer structural representation
Embodiment
According to Fig. 1, shown in Figure 2, the impeller of surface aeration machine mainly is made up of impeller body, blade 4, and impeller body is made up of skeleton supporting face 2 and cone 3 for falling umbrella, and the top angle of cone 3 is the 120-150 degree, and the middle part is provided with central through hole 1.Blade 4 is fixed on the concave, convex face of cone 3 of impeller body radially, can be by welding, rivet or use bolting.Be evenly equipped with water sprayer 9 radially on the cone 3 of described impeller body, water sprayer 9 can be fixed on the concave surface of cone 3, also can be fixed on the convex surface of cone 3, perhaps is inlaid in the conical surface.
Be evenly equipped with gas-liquid mixed pipe 7 radially on the outer convex surface of the cone of skeleton supporting face more than 2 of described impeller body, the impeller body of gas-liquid mixed pipe 7 inner ingress is provided with several air-breathing through holes 8.According to left and right rotation operating mode needs, the left side of gas-liquid mixed pipe 7 and blade 4 or the impeller body on right side are provided with a plurality of air-breathing through holes 8, when the impeller body sense of rotation not simultaneously, side at gas-liquid mixed pipe 7 or blade 4 forms negative pressuren zone, and air carries out oxygenation through 8 pairs of water of air-breathing through hole of negative pressuren zone.The radial section of gas-liquid mixed pipe 7 can be trilateral, semicircle, circle, rectangle, sexangle or other geometrical shape.The upper surface 5 of blade 4 is dentation, and dentation also can be arranged in its lower surface in addition, and perhaps upper and lower end face is made as dentation simultaneously.The blade edge 6 that is positioned at the outer convex surface of cone of impeller body can be made linearity, also can make concave arc shape, to increase its intensity.
According to shown in Figure 3, the radial section 15 of blade can be perpendicular, also can be folding surface, and is promptly planar by forming folder after two Plane intersects, and its bending angle is between 120 degree are spent to 180.
According to shown in Figure 4, described water sprayer 9 is made of the coaxial in turn connection of spray tube 10, vacuum suction chamber 11 and gas-liquid mixed diffuser tube 13, the entrance end 14 of spray tube 10 leads to the central through hole 1 of impeller body, vacuum suction chamber 11 is provided with air-breathing through hole 12, and air-breathing through hole 12 leads to concave surface one side of impeller body cone.If water sprayer 9 is fixed on the convex surface of cone 3, then air-breathing through hole 12 leads to the concave surface of impeller body cone by pipe connecting.
The tail end of described spray tube 10 is drawn close to the water sprayer axis gradually and is formed frustum and stretch in the vacuum suction chamber 11.Described gas-liquid mixed diffuser tube 13 tail ends are horn-like.Needs according to left and right rotation operating mode, the impeller body on water sprayer 9 left sides or right side is provided with air-breathing through hole 8, when the impeller body sense of rotation not simultaneously, side at water sprayer 9 forms negative pressuren zone, air carries out oxygenation through the air-breathing through hole of negative pressuren zone to water, has eliminated negative pressure simultaneously in oxygenation and does not increase the energy consumption of aerator.
During surface aeration machine impeller rotary work, blade stirs the air-breathing mixing of surface water plug-flow tempestuously, gas-liquid mixed pipe setting-out is held stream under the arm, and negative inspiratory pressure mixes, centrifugal sprinkling, and water sprayer promotes shallow or intermediate water centrifugal atomization, negative inspiratory pressure mixes diffusion, under the prerequisite that does not increase power consumption, the trinity rises oxygenation capacity significantly, thereby reduce the sewage purification expense, improve sewage treatment capacity.
Claims (9)
1, a kind of impeller of surface aeration machine, it comprises impeller body and blade (4), impeller body is for falling umbrella, its middle part is provided with central through hole (1), blade (4) is fixed on the impeller body radially, it is characterized in that being furnished with water sprayer (9) radially on the cone (3) of described impeller body, described water sprayer (9) is by spray tube (10), the coaxial in turn connection of vacuum suction chamber (11) and gas-liquid mixed diffuser tube (13) constitutes, the entrance end (14) of spray tube (10) leads to the central through hole (1) of impeller body, vacuum suction chamber (11) is provided with air-breathing through hole (12), and air-breathing through hole (12) leads to concave surface one side of impeller body cone (3).
2, the impeller of surface aeration machine according to claim 1, the tail end that it is characterized in that described spray tube (10) are drawn close to the water sprayer axis gradually and are formed frustum and stretch in the vacuum suction chamber (11).
3, the impeller of surface aeration machine according to claim 1 is characterized in that described gas-liquid mixed diffuser tube (13) tail end is horn-like.
4, the impeller of surface aeration machine according to claim 1 is characterized in that the impeller body of described water sprayer (9) one sides is provided with air-breathing through hole.
5, according to the impeller of each described surface aeration machine among the claim 1-4, the above cone of skeleton supporting face (2) that it is characterized in that described impeller body is evenly equipped with gas-liquid mixed pipe (7) on the convex surface outward radially, and the impeller body of the inner ingress of gas-liquid mixed pipe (7) is provided with air-breathing through hole (8).
6, the impeller of surface aeration machine according to claim 5 is characterized in that the impeller body of described gas-liquid mixed pipe (7) either side or both sides is provided with air-breathing through hole (8).
7,, it is characterized in that the impeller body of described blade (4) either side or both sides is provided with air-breathing through hole (8) according to the impeller of each described surface aeration machine among the claim 1-4.
8, according to the impeller of each described surface aeration machine among the claim 1-4, it is characterized in that the upper surface (5) of described blade or lower surface are dentation, perhaps upper and lower end face is dentation.
9,, it is characterized in that being positioned at the linearly or arc shaped of blade edge (6) of the outer convex surface of impeller body according to the impeller of each described surface aeration machine among the claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201254665U CN200985305Y (en) | 2006-11-27 | 2006-11-27 | Impeller for surface aerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201254665U CN200985305Y (en) | 2006-11-27 | 2006-11-27 | Impeller for surface aerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200985305Y true CN200985305Y (en) | 2007-12-05 |
Family
ID=38914765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201254665U Expired - Lifetime CN200985305Y (en) | 2006-11-27 | 2006-11-27 | Impeller for surface aerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200985305Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751533A (en) * | 2022-04-16 | 2022-07-15 | 宁波财经学院 | Multi-dimensional aeration device |
-
2006
- 2006-11-27 CN CNU2006201254665U patent/CN200985305Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751533A (en) * | 2022-04-16 | 2022-07-15 | 宁波财经学院 | Multi-dimensional aeration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090930 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |