CN107540080B - Impeller-free aeration plug flow device - Google Patents
Impeller-free aeration plug flow device Download PDFInfo
- Publication number
- CN107540080B CN107540080B CN201710887664.8A CN201710887664A CN107540080B CN 107540080 B CN107540080 B CN 107540080B CN 201710887664 A CN201710887664 A CN 201710887664A CN 107540080 B CN107540080 B CN 107540080B
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- Prior art keywords
- aeration
- impeller
- flow
- cavity
- port
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- 238000005273 aeration Methods 0.000 title claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005276 aerator Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model provides a impeller-free aeration flow pushing device which mainly comprises an air source, a base and an aeration flow pushing port, wherein a cavity is formed in the aeration flow pushing port, the widths of two ends of the cross section of the cavity are different, one end of the cross section of the cavity with smaller width is provided with a slit-shaped air outlet, and the air outlet is provided with a Coen surface; the aeration pushing port is fixed below the water surface through the base, and the air source is positioned above the water surface and is communicated with the cavity of the aeration pushing port through the air pipe. The impeller-free aeration plug-flow device has no rotating element exposed outside the equipment, so that the safety problem caused by misoperation is avoided to the greatest extent; simple structure, easy cleaning and wide application range.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment equipment, and particularly relates to a impeller-free aeration plug-flow device.
Background
The utility model patent No. CN201520868366.0 discloses a diving plug flow type aerator, which comprises a shell; the bottom of the impeller cavity is connected with the top of the shell, and the top of the impeller cavity is provided with an air inlet and a water inlet; the impeller is positioned in the impeller cavity; the motor is positioned in the shell, and a motor shaft of the motor penetrates through the bottom of the impeller cavity to be connected with the impeller; the air inlet pipe is connected with the air inlet; the moving device comprises a bracket, a closed track, a power motor and a PLC; the bracket is fixed at the bottom of the sewage pool; the closed track is fixedly arranged on the bracket, and a plurality of fixing devices are uniformly arranged on the closed track at intervals; the power motor is fixedly arranged on the shell; the PLC is arranged near the sewage pool and used for controlling the power motor and the fixing device to be turned on/off.
At present, domestic traditional underwater plug flow equipment and aeration equipment are two independent equipment, and the plug flow equipment mainly takes a submersible propeller as a main component; the aeration equipment is mainly a horizontal rotary disc aerator. The underwater propeller is an impeller propulsion structure driven by an underwater motor, and when maintenance is needed, the underwater propeller is lifted to the water through a bracket for maintenance, so that the maintenance is difficult; the horizontal rotary disc aerator is partially immersed in water, air is brought into water by utilizing the rotary disc, the disc is complex to manufacture, and the horizontal rotary disc aerator is provided with a plurality of special structures such as teeth, water splashing flaps, oxygen storage grooves, centrifugal grooves and the like, has high cost, and meanwhile, has a general plug flow effect and is usually matched with a submersible propeller for use.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the impeller-free aeration plug flow device which can realize the underwater plug flow and aeration functions at the same time, is convenient to overhaul, and has the advantages of simple manufacture, safe operation and relatively low cost.
The present utility model achieves the above technical object by the following means.
The impeller-free aeration flow pushing device is characterized by mainly comprising an air source, a base and an aeration flow pushing port, wherein a cavity is formed in the aeration flow pushing port, one end of the cavity is provided with a slit-shaped air outlet, and the air outlet is provided with a coanda surface; the aeration pushing port is fixed below the water surface through the base, and the air source is positioned above the water surface and is communicated with the cavity of the aeration pushing port through the air pipe.
Further, the widths of the two ends of the cross section of the cavity are different, the shell is streamline, and the air outlet is located at one end of the cavity with smaller cross section.
Further, the aeration pushing port is annular, the cavity penetrates through the whole annular main body, and the air outlet also extends along the annular main body.
Further, the base is U-shaped, the aeration plug flow port is embedded in the U-shaped groove, the lower end of the base is fixed on the rotating motor, and the rotation of the motor is controlled by a controller above the water surface.
Further, the aeration device further comprises a lifting mechanism, wherein the lifting mechanism at least comprises a pull rope for lifting the aeration pushing port.
Further, the lifting mechanism further comprises a winch for lifting the pull rope.
Further, the device also comprises a guide rail extending from the base to the position above the water surface, wherein the guide rail is positioned at two sides of the aeration pushing port, the aeration pushing port is provided with a lantern ring which is sleeved on the guide rail, and when the aeration pushing port is fixed on the base, the lantern ring is separated from the guide rail.
Further, the air source is a blower.
In the impeller-free aeration device, the air flow of the air blower is sent from the air pipe, and is scattered in the cavity filled with the aeration pushing port to a certain extent, so that the air pressure in the cavity exceeds the normal water pressure outside the cavity, and the air is discharged from the air outlet gap. When the air flow in the aeration pushing port passes through the fine slit, the air supply pressure can be enhanced, so that the air flow flowing out of the slit of the impeller-free aeration pushing port forms high-speed air flow. The high-speed air flow drives water positioned in front of the air outlet of the aeration plug flow port to flow along with the air, and a blowing effect is formed in the water. Simultaneously forming negative pressure, supplementing water behind and near the aeration pushing port under the action of the negative pressure, widening the blowing range and enhancing the central flow effect; the superposition of various liquid flows can form a flow pushing effect which is multiple times that of the impeller-free aeration flow pushing port to absorb the air flow of the blower.
The utility model gets rid of the mode that the traditional impeller drives the blades to directly push flow by the motor, cancels the high-speed rotating blades, becomes safer, and has more stable and uniform push flow of the impeller-free aeration push flow port. Moreover, the product can not be wound, and the cleaning is very convenient.
In addition, the width at the two ends of the cross section of the cavity is different, the shell is streamline, the slit-shaped air outlet is positioned at one end of the cavity with smaller cross section, so that the device is arranged, in the air outlet direction of the impeller-free aeration push flow port, a flow channel with different diameters is formed at the center of the annular aeration push flow port, namely, the aperture D at the rear end is smaller than the aperture D at the front end, therefore, when water flow supplemented by negative pressure passes through the flow channel at the center of the annular aeration push flow port, the water flow is accelerated due to the Venturi tube effect, and the water flow speed is further enhanced.
Therefore, the advantages of the present utility model are as follows:
1. an aeration pushing port is adopted, air is introduced into water by using wind pressure to form air flow, and aeration and pushing combination are completed;
2. the blower is arranged on water, and the maintenance can be completed on the maintenance platform during maintenance;
3. removing the manufacture of disc complex structures and the like, and simplifying the manufacture process;
4. the impeller-free aeration plug-flow device has no rotating element exposed outside the equipment, so that the safety problem caused by misoperation is avoided to the greatest extent;
5. the main body of the utility model is formed by combining standard elements such as sectional materials, thereby reducing the manufacturing cost and the running cost of equipment.
Drawings
Fig. 1 is a schematic view of an embodiment of the bladeless aeration device according to the present utility model.
FIG. 2 is a schematic diagram of the cross-sectional structure of the aeration pushing port.
Fig. 3 is a schematic structural diagram of the installation mode of the aeration pushing port.
The device comprises a 1-blower, a 2-bracket, a 3-lifting mechanism, a 4-air pipe, a 5-aeration pushing port, a 6-base, a 7-rotating motor, an 8-guide rail and a 9-sleeve ring.
Detailed Description
The utility model will be further described with reference to the drawings and the specific embodiments, but the scope of the utility model is not limited thereto.
As shown in figure 1, the impeller-free aeration flow pushing device mainly comprises a blower 1, an air pipe 4, a base 6 and an aeration flow pushing port 5. The air blower 1 is arranged on a water platform above the water surface or on the shore, and the air pipe 4 is connected with an air outlet of the air blower 1 and stretches into the water surface. The aeration pushing port 5 is positioned under water, and the air inlet of the aeration pushing port 5 is connected with the air pipe 4. In order to fix the aeration push port 5 at the underwater position, the aeration push port 5 is fixed on the base 2 below the water surface. The air blower 1 is used as air source equipment of a bladeless aeration flow pushing device, and an air source is conveyed to an aeration flow pushing port 5 through an air pipe 4.
As shown in fig. 2, the aeration pushing port 5 is provided with a cavity inside, the widths of two ends of the cross section of the cavity are different, the shell is streamline, and the air outlet is positioned at one end of the cavity with smaller cross section. The air outlet is provided with a coanda surface. The shape of the aeration pushing port 5 can be any shape, and preferably, the shape of the aeration pushing port 5 is set to be annular, and the air outlet of the annular pushing flow aeration port forms a closed loop. The air entering the cavity in the aeration pushing port 5 from the air pipe 4 spreads and fills the cavity in the aeration pushing port 5 to a certain extent, the air pressure in the cavity exceeds the normal water pressure outside the cavity, the air at the smaller end of the cross section in the cavity flows along the surface of the Count along the air outlet, and is discharged from the air outlet gap together with the air at the larger end of the cross section in the cavity, thus forming water flow.
When the air flow in the aeration pushing port 5 passes through the tiny slits, the air supply pressure can be enhanced, so that the air flow flowing out of the slits of the impeller-free aeration pushing port 5 forms high-speed air flow. The high-speed air flow drives water positioned in front of the air outlet of the aeration pushing port 5 to flow along with the air, and a blowing effect is formed in the water. Meanwhile, negative pressure is formed, water behind and nearby the aeration pushing port 5 is supplemented under the action of the negative pressure, the blowing range is widened, and the center flow-conveying effect is enhanced; the superposition of various liquid flows can form a flow pushing effect which is multiple times that of the impeller-free aeration flow pushing port 5 for absorbing the air flow of the blower 1. In addition, the width at the two ends of the cross section of the cavity is different, the shell is streamline, the slit-shaped air outlet is positioned at one end of the cavity with smaller cross section, so that the impeller-free aeration pushing port 5 is arranged, a flow channel with different diameters is formed at the center of the annular aeration pushing port 5, namely, the aperture D at the rear end is smaller than the aperture D at the front end, therefore, when water flow supplemented by negative pressure passes through the flow channel at the center of the annular aeration pushing port 5, the water flow is accelerated due to the Venturi tube effect, and the water flow speed is further enhanced. The impeller-free aeration impeller-free impeller device gets rid of the mode that the traditional impeller device drives blades to directly push flow by means of a motor, eliminates the high-speed rotating blades, becomes safer, and simultaneously has more stable and uniform pushing flow of the impeller-free aeration pushing port 5. Moreover, the product is very convenient to clean and is not wound.
Further, as shown in fig. 3, in order to conveniently adjust the direction of the flow of the aeration flow pushing port 5, the base 6 is U-shaped, the aeration flow pushing port 5 is embedded in the U-shaped groove, the lower end of the base 6 is fixed on the rotating motor 7, and the rotation of the motor is controlled by a controller above the water surface. The work of the rotating motor 7 is adjusted through a controller positioned above the water surface to drive the U-shaped base 6 to rotate, and meanwhile, the aeration pushing port 5 is also rotated, so that the direction of the pushing flow of the aeration pushing port 5 is changed.
In this embodiment, the impeller-free aeration flow pushing device further includes a lifting mechanism for lifting the aeration flow pushing port 5 out of the water, one end of a pull rope of the lifting mechanism 3 is fixed on the impeller-free aeration flow pushing port 5, and the other end is directly connected with the winch or connected with a traction force source after bypassing a pulley on the bracket 2. The traction can be performed manually or by auxiliary machinery. Meanwhile, the aeration device further comprises a guide rail 8 extending from the base 6 to the position above the water surface, the guide rail 8 is positioned at two sides of the aeration pushing port 5, a lantern ring 9 is arranged on the aeration pushing port 5 and sleeved on the guide rail 8, and when the aeration pushing port 5 is fixed on the base 6, the lantern ring 9 is separated from the guide rail 8. On the one hand, the guide rails 8 positioned at the two sides of the aeration pushing port 5 can play a role in guiding when the aeration pushing port 5 is lifted, and meanwhile, the flow of liquid is not influenced. In addition, the top end of the U-shaped base 6 is higher than the top end of the aeration pushing port 5, and even if the aeration pushing port 5 rotates, the guide rail 8 does not influence the flow of liquid.
The examples are preferred embodiments of the present utility model, but the present utility model is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present utility model are within the scope of the present utility model.
Claims (8)
1. The impeller-free aeration flow pushing device is characterized by mainly comprising an air source, a base (6) and an aeration flow pushing port (5), wherein a cavity is formed in the aeration flow pushing port (5), one end of the cavity is provided with a slit-shaped air outlet, and the air outlet is provided with a coanda surface; the widths of the two ends of the cross section of the cavity are different, the shell is streamline, and the air outlet is positioned at one end of the cavity with smaller cross section; the aeration pushing port (5) is fixed below the water surface through the base (6), and the air source is positioned above the water surface and is communicated with the cavity of the aeration pushing port (5) through the air pipe (4).
2. The impeller-less aeration plug flow device according to claim 1, characterized in that the aeration plug flow port (5) is annular, the cavity penetrates the whole annular main body, and the air outlet also extends along the annular main body; the base (6) is U-shaped, and the aeration pushing port (5) is inlaid in the U-shaped groove.
3. The impeller-less aeration plug flow device according to claim 1, wherein the lower end of the base (6) is fixed on a rotary motor (7), and the rotation of the motor is controlled by a controller located above the water surface.
4. The impeller-less aeration plug flow device according to claim 1, further comprising a lifting mechanism (3), the lifting mechanism (3) comprising at least a pull rope pulling the aeration plug flow port (5).
5. The impeller-less aeration plug flow device according to claim 4, characterized in that the lifting mechanism (3) further comprises a hoist for lifting the pull rope.
6. The impeller-free aeration flow pushing device according to claim 5, further comprising a guide rail (8) extending from the base (6) to above the water surface, wherein the guide rail (8) is located at two sides of the aeration flow pushing port (5), a collar (9) is arranged on the aeration flow pushing port (5) and sleeved on the guide rail (8), and when the aeration flow pushing port (5) is fixed on the base (6), the collar (9) is separated from the guide rail (8).
7. The impeller-less aeration plug flow device according to claim 6, characterized in that the top end of the U-shaped base (6) is higher than the top end of the aeration plug flow port (5).
8. The impeller-free aeration plug flow device according to any one of claims 1 to 7, wherein the air source is a blower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887664.8A CN107540080B (en) | 2017-09-27 | 2017-09-27 | Impeller-free aeration plug flow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887664.8A CN107540080B (en) | 2017-09-27 | 2017-09-27 | Impeller-free aeration plug flow device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107540080A CN107540080A (en) | 2018-01-05 |
| CN107540080B true CN107540080B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710887664.8A Active CN107540080B (en) | 2017-09-27 | 2017-09-27 | Impeller-free aeration plug flow device |
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| CN (1) | CN107540080B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111110968B (en) * | 2019-12-27 | 2024-04-02 | 北京怡和嘉业医疗科技股份有限公司 | Breathing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102124989A (en) * | 2011-01-26 | 2011-07-20 | 徐佳晶 | Impeller-free aerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5800185B2 (en) * | 2011-07-15 | 2015-10-28 | 雅 田篭 | Microbubble generating once-through pump |
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- 2017-09-27 CN CN201710887664.8A patent/CN107540080B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102124989A (en) * | 2011-01-26 | 2011-07-20 | 徐佳晶 | Impeller-free aerator |
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| CN107540080A (en) | 2018-01-05 |
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