CN206424805U - A kind of undercurrent propeller of automatic aeration - Google Patents
A kind of undercurrent propeller of automatic aeration Download PDFInfo
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- CN206424805U CN206424805U CN201720008844.XU CN201720008844U CN206424805U CN 206424805 U CN206424805 U CN 206424805U CN 201720008844 U CN201720008844 U CN 201720008844U CN 206424805 U CN206424805 U CN 206424805U
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- trunnion
- impeller
- automatic aeration
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Abstract
The utility model discloses a kind of undercurrent propeller of automatic aeration, including the contraction passage being arranged on inside water body, the narrow end for shrinking passage is fixedly installed Water flow propelling device, the direction of propulsion of the Water flow propelling device is set towards the direction that narrows for shrinking passage, and the propulsion rear of the Water flow propelling device is provided with the airflow pipeline being connected to more than the water surface.The utility model passes through the impeller that runs at high speed, parital vacuum chamber is formed while water body is promoted, entered by negative-pressure ward extraneous air by airflow pipeline in trunnion, form tiny bubble, these tiny bubbles can release trunnion with the water mixing that supplements immediately by impeller, this process is achieved that automatic aeration, not only contributes to the increase of dissolved oxygen content in water body, and has saved the cost for setting active aerator.
Description
Technical field
The utility model belongs to wastewater treating technology, and in particular to a kind of undercurrent propeller of automatic aeration.
Background technology
Black and odorous water is mainly what water hypoxia was caused, while also relevant with body eutrophication and bed mud deposition.When molten
When solution oxygen is reduced to 2.0mg/L, water body will be in anaerobic condition.When dissolved oxygen is 3mg/L~5mg/L, organic dirt in water body
Contaminating thing and ammonia-nitrogen content typically can also exceed the class standard of surface water V, and presentation is coloured taste state, but with the presence of aquatile；When
When dissolved oxygen is more than 6mg/L, water body is in aerobic state, and organic matter degradation and ammonia oxidation speed rate are dramatically increased, and water body starts tool
There is self-purification capacity.In the area using sewage treatment plant as main water source, such as Haihe basin, part biological is difficult to degrade in water
Organic matter, BOD is close to zero, even if COD and ammonia nitrogen pass through self-cleaning, it is also difficult to reach the requirement of the class standard of surface water V.
Black and odorous water usually flows slowly, or even water body is without flow regime.Elapse over time, Dissolved Oxygen in Water consumption compared with
Greatly, supplied again without enough dissolved oxygens, cause water body increasingly to foul, black, water quality further deteriorates.If adopting
Reoxygenation processing is carried out to black and odorous waters such as river course, small ditches with techniques such as conventional aerobic aeration, biofilter, Dredgings,
Not only invest big, processing cost is high, and government is difficult to undertake, and processing time is longer, difficult management.
Utility model content
The utility model solve technical problem be：The dissolving existed for existing cities and towns black and odorous water or industrial wastewater
The drawbacks described above that oxygen supply is present is there is provided a kind of undercurrent propeller of new automatic aeration, using the water body undercurrent of low cost
Automatic aeration is realized in promotion, is improved without the water body treating effect under flow regime.
The utility model adopts the following technical scheme that realization：
A kind of undercurrent propeller of automatic aeration, including the contraction passage inside water body is arranged on, the contraction passage
Narrow end is fixedly installed Water flow propelling device, and the direction of propulsion of the Water flow propelling device is set towards the direction that narrows for shrinking passage
Put, the propulsion rear of the Water flow propelling device is provided with the airflow pipeline being connected to more than the water surface.
Further, it is described contraction passage include retract chamber and trunnion, the trunnion be uiform section pipe, and with retract chamber
Narrow end is docked, and the Water flow propelling device is fixedly mounted in trunnion.
It is preferred that, the retract chamber uses drift angle for 42 ° ± 2 ° of circular cone structure.
Further, the trunnion correspondence Water flow propelling device promotes the position at rear to be provided with an inlet chamber, the trunnion
Upper to set some air admission holes to be connected with the inlet chamber, the inlet chamber is connected to more than the water surface by air inlet pipe.
It is preferred that, the inlet chamber is the annular air cavity being coaxially arranged around trunnion, and the air admission hole is evenly arranged in trunnion
The annular region contacted with annular air cavity.
In the utility model, the Water flow propelling device includes motor and impeller, and the impeller is connected with motor shaft, and
It is fixedly installed along the axis of trunnion, the motor is set by motor fixing frame.
It is preferred that, the impeller uses turbine type impeller.
It is preferred that, the gap between the impeller wheel edge and trunnion inwall is 2~4mm.
Further, the undercurrent propeller is fixedly installed on inside water body by fixed support, the gas channel edge
Fixed support is set.
It is preferred that, the fixed support has hollow lumen, and the gas channel connects current by hollow lumen and promoted
Device and the water surface.
When Water flow propelling device in the utility model works, impeller runs at high speed, and first drives close to impeller and promotes rear
Water body flow forward, due to impeller speed cause soon below water body also have little time to be supplemented, this moment close to will at impeller
The air on the vacuum chamber of a part, the water surface is formed by airflow pipeline air inlet to shrinking in passage, by trunnion inwall
Tiny air admission hole enter in the vacuum chamber that is formed of impeller, front is pushed to by quick runner together with water body below, this is just
Complete an aeration process.Because air bubble is smaller, and the contact in water body center, gas floating-upward process with water body
Area is greatly improved, and is conducive to the increase of dissolved oxygen in water body, so as to cause the raised growth of aerobic microbiological in water body, is improved
The self-purification capacity of water body.Further, since the water body speed of impeller propelled, is easily caused and is formed in the front of undercurrent propeller
Turbulent flow, increases the flow condition of water body, is conducive to the increase of the content of dissolved oxygen in water body again.
The utility model has the advantages that：
1st, using passage is shunk, the water velocity that impeller is released is bigger；
2nd, after water body flows out at a high speed through trunnion, static water body flow is promoted, whole water body is produced vortex, water body is disorderly
Stream coefficient is greatly improved, and is conducive to the increase of dissolved oxygen in water body；
3rd, the impeller run at high speed is driven through motor, parital vacuum chamber is formed easily in trunnion, causes air directly to pass through
The tiny micropore of annular air cavity and trunnion wall enters in trunnion, and forms tiny bubble, and these tiny bubbles can be with supplementing immediately
Water mixing and trunnion is released by impeller, this process is achieved that automatic aeration, not only contributes to dissolved oxygen in water body
Increase, and saved aerator cost；
4th, air inlet pipe can individually be built, and can also be built jointly with fixed support, flexibly simple and direct, while also saving material throwing
Provide cost.
The utility model is described further below in conjunction with the drawings and specific embodiments.
Brief description of the drawings
Fig. 1 be embodiment in a kind of automatic aeration undercurrent propeller structure schematic diagram.
Label in figure：1- fixed supports, 2- retract chambers, 3- motors, 4- air inlet pipe, 5- trunnions, 6- impellers, 7- annular gas
Chamber, 8- motor fixing frames, 9- air admission holes.
Embodiment
Embodiment
Referring to Fig. 1, it is illustrated that in the undercurrent propeller of automatic aeration a kind of be preferred scheme of the present utility model, specific bag
Include fixed support 1, retract chamber 2, motor 3, air inlet pipe 4, trunnion 5, impeller 6, annular air cavity 7, motor fixing frame 8.
Specifically, the retract chamber 2 and trunnion 5 in the present embodiment combine the contraction passage for forming the present embodiment, passage is shunk
It is located at entirely through the leaching of fixed support 1 in water body, wherein retract chamber 2 is using the barrel components of circular cone structure, the top of the frustum of a cone
Angle is 42 ° ± 2 °, and trunnion 5 uses prismatic circle tube member, and the diameter of trunnion 5 is consistent with the narrow end diameter of retract chamber 2,
And docked with the narrow end fixation of retract chamber 2.Under the impetus of Water flow propelling device, water body enters from the wide end of retract chamber 2,
Then released from the trunnion of narrow end, during trunnion 5 is progressed into from retract chamber 2, the sectional area circulated due to water body by
Gradual change is small, and the flow velocity of current can decline, and is conducive to the airflow pipeline of the present embodiment fully to expose the water body formed in trunnion
Gas.
Water flow propelling device in the present embodiment is arranged in trunnion 5, specifically includes motor 3 and impeller 6, and motor 3 passes through
Motor fixing frame 8 is fixed, and impeller 6 is fixedly connected with the output shaft of motor 3, and the axis and trunnion 5 of motor 3 and impeller 6 are same
Axle is set, and the direction of propulsion of impeller 6 is identical with the direction that narrows for shrinking passage, makes motor impeller in the process of running at high speed
In, electrical axis and impeller center line are in same horizontal line all the time, it is ensured that shockproof effect when motor works.Motor 3 is adopted
With electrical installation used in immersible pump, it is ensured that underwater sealing property.
The rotating speed of impeller 6 of undercurrent propeller cannot be below 2940r/min in the present embodiment, and impeller 6 uses turbine type impeller,
The diameter of impeller 6 is advisable in 150mm~200mm, and the blade edge of impeller 6 and the inwall of trunnion 5 allow in the presence of between 2~4mm
Gap, it is ensured that water body produces vacuum chamber by forming high-velocity flow after trunnion 5, forms negative pressure, supplements outside empty by airflow line
After gas, form bubble and taken away by high-velocity flow.
The position set according to impeller can by trunnion 5 points be front and rear two sections, wherein one section close to impeller direction of propulsion is
Front is promoted, close to one section of retract chamber to promote rear, one section with trunnion 5 close to retract chamber of gas channel one end is connected,
The other end, which stretches out, sets 3~5cm to more than the water surface of water body.
Specifically, the gas channel of the present embodiment includes being arranged on air inlet pipe 4, annular air cavity 7 and being arranged on trunnion
Air admission hole 9.The one end of air inlet pipe 4 is stayed in above the water surface, and the other end is connected with being arranged on the inlet chamber of trunnion outer wall, air-flow is led to
Cross in the water body inside the feeding trunnion of air admission hole 9 set on trunnion inwall, realize aeration.
Inlet chamber in the present embodiment is annular air cavity 7, and the coaxial package on the outside of trunnion of annular air cavity 7 is an annular gas
Circulation road, the top of annular air cavity 7 passes through atmosphere more than air inlet pipe 4 and the water surface, some tiny uniform cloth of air admission hole 9
The annular region contacted in trunnion 5 with annular air cavity 7 is put, the pore diameter range of air admission hole 9 is between 0.5-1cm, in annular air cavity 7
Gas entered by the air admission hole on trunnion wall inside trunnion, can further realize 360 ° it is equal to being carried out by the water body of trunnion
Even aeration.
When Water flow propelling device is static, water body can enter annular air cavity 7 by air admission hole, start in Water flow propelling device
Afterwards, the water body in this part-toroidal air cavity can be extracted out, forms gas channel.
Air inlet pipe 4 can set up one or a few pipeline connected with annular air cavity 7, and air inlet pipe 4 is fixed along fixed support 1
Set, air inlet pipe can also be merged into fixed support 1, should inside fixed support when air inlet pipe 4 merges with fixed support 1
At least one hollow passageway is set, and the hollow passageway one end is directly connected with annular air cavity 7, the other end stretches out the water surface and set, and
It should be guaranteed that the strength and stiffness of fixed support 1 meet national standard.
The operation principle of the present embodiment is as follows：When motor 3 works, impeller 6 runs at high speed, and first drives close to impeller 6 and pushes away
Enter the water body flow forward at rear, because the speed of impeller 6 causes the water body then entered from retract chamber 2 also to have little time to be mended soon
Fill, the vacuum chamber of a part will be formed at rear by being promoted this moment close to impeller 6, and extraneous air enters ring by air inlet pipe 4
It is and subsequent in shape air cavity 7, then the vacuum chamber formed into impeller by the tiny air admission hole 9 on annular air cavity 7 and trunnion wall
The water body for entering trunnion 5 by retract chamber 2 pushes front to by quick runner 6 together, and this completes an aeration process.By
It is smaller in the air bubble entered from air admission hole, and the contact area with water body in water body center, gas floating-upward process is big
It is big to improve, be conducive to the increase of dissolved oxygen in water body, so as to cause the raised growth of aerobic microbiological in water body, improve water body
Self-purification capacity.Further, since the water body speed of impeller propelled, is easily caused and forms turbulent flow in the front of undercurrent propeller,
The flow condition of water body is increased, further promotes the increase of dissolved oxygen content in water body.
In a concrete application example, black smelly section to be processed is separated, the automatic aeration undercurrent of the present embodiment is pushed away
Enter device to be submerged in water, and survey original COD for 1240mg/L.Same period water sampling carries out COD detections daily, through this implementation
After the undercurrent propeller processing 1d of example, water body COD is down to water body COD after 582mg/L, 3d and is down to 92mg/L, and effect is good greatly.Together
When, water body color has black turn clearly, and aerobic microbiological, algal bloom, effect are preferable.
Above example is, to explanation of the present utility model, not to limit of the present utility model, the technology people of the industry
Member is it should be appreciated that the utility model is not restricted to the described embodiments, and described in above-described embodiment and specification is explanation
Concrete operating principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model can also
There are various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model, the utility model will
Protection domain is sought by appended claims and its equivalent thereof.
Claims (10)
1. a kind of undercurrent propeller of automatic aeration, it is characterised in that：Including the contraction passage being arranged on inside water body, the receipts
The narrow end of contracting passage is fixedly installed Water flow propelling device, direction of propulsion the narrowing towards contraction passage of the Water flow propelling device
Direction is set, and the propulsion rear of the Water flow propelling device is provided with the airflow pipeline being connected to more than the water surface.
2. a kind of undercurrent propeller of automatic aeration according to claim 1, the contraction passage includes retract chamber and larynx
Pipe, the trunnion is uiform section pipe, and is docked with the narrow end of retract chamber, and the Water flow propelling device is fixedly mounted in trunnion.
3. a kind of undercurrent propeller of automatic aeration according to claim 2, the retract chamber uses drift angle for 42 ° ± 2 °
Circular cone structure.
4. a kind of undercurrent propeller of automatic aeration according to claim 2, the trunnion correspondence Water flow propelling device is pushed away
The position for entering rear is provided with an inlet chamber, sets some air admission holes to be connected with the inlet chamber on the trunnion, and the inlet chamber is logical
Air inlet pipe is crossed to be connected to more than the water surface.
5. a kind of undercurrent propeller of automatic aeration according to claim 4, the inlet chamber is coaxially to be arranged around trunnion
Annular air cavity, the air admission hole is evenly arranged in the annular region that trunnion is contacted with annular air cavity.
6. a kind of undercurrent propeller of automatic aeration according to any one of claim 1-5, the Water flow propelling device
Including motor and impeller, the impeller is connected with motor shaft, and is fixedly installed along the axis of trunnion, and the motor is solid by motor
Determine frame setting.
7. a kind of undercurrent propeller of automatic aeration according to claim 6, the impeller uses turbine type impeller.
8. a kind of undercurrent propeller of automatic aeration according to claim 6, the impeller wheel edge and trunnion inwall it
Between gap be 2~4mm.
9. a kind of undercurrent propeller of automatic aeration according to claim 1, the undercurrent propeller passes through fixed support
It is fixedly installed on inside water body, the gas channel is set along fixed support.
10. a kind of undercurrent propeller of automatic aeration according to claim 9, the fixed support has hollow lumen,
The gas channel connects Water flow propelling device and the water surface by hollow lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720008844.XU CN206424805U (en) | 2017-01-05 | 2017-01-05 | A kind of undercurrent propeller of automatic aeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720008844.XU CN206424805U (en) | 2017-01-05 | 2017-01-05 | A kind of undercurrent propeller of automatic aeration |
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| Publication Number | Publication Date |
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| CN206424805U true CN206424805U (en) | 2017-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720008844.XU Active CN206424805U (en) | 2017-01-05 | 2017-01-05 | A kind of undercurrent propeller of automatic aeration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080372A (en) * | 2017-12-27 | 2018-05-29 | 江苏博隆环保设备有限公司 | For the cleaning device of steel pipe inner wall |
-
2017
- 2017-01-05 CN CN201720008844.XU patent/CN206424805U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080372A (en) * | 2017-12-27 | 2018-05-29 | 江苏博隆环保设备有限公司 | For the cleaning device of steel pipe inner wall |
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