CN205225878U - Surface of water of open type intake pool whirlpool device that disappears - Google Patents
Surface of water of open type intake pool whirlpool device that disappears Download PDFInfo
- Publication number
- CN205225878U CN205225878U CN201521069185.8U CN201521069185U CN205225878U CN 205225878 U CN205225878 U CN 205225878U CN 201521069185 U CN201521069185 U CN 201521069185U CN 205225878 U CN205225878 U CN 205225878U
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- CN
- China
- Prior art keywords
- water
- lid
- open type
- whirlpool
- circular
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- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 210000003101 oviduct Anatomy 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Surface of water of open type intake pool whirlpool device that disappears belongs to pump station engineering technical field, the utility model discloses at the concentric connected loudspeaker pipe of the lower extreme of the pipe that absorbs water, at the circular showy lid of upper portion overcoat of pipe that absorbs water. The utility model discloses rational in infrastructure simple, it is easy to manufacture, practical convenient, directly drops into the intake pool of open type with the device, under the effect of circular showy lid, can keep the following position of the circular showy lid of this device to place in below the surface of water all the time to circular showy lid is the level, through the utility model discloses can improve tub peripheral free water surface's that absorbs water rivers condition effectively, reduce the probability that tub peripheral surface of water whirlpool area that absorbs water produced, and little to intake pool inside flow state influence, provide good inflow condition for water pump inlet.
Description
Technical field
The utility model belongs to pump station engineering technical field, is specifically related to the technology for eliminating of open type water inlet pool water surface vortex rope.
Background technique
Water inlet pool installs the pumping plant intake construction of pump water inlet for pump water suction.The Main Function of water inlet pool is for unit fixed on water pump suction provides good flow condition.If velocity flow profile is uneven in water inlet pool, even also has vortex rope significantly will inevitably reduce energy characteristics and the cavitation performance of water pump, water pump assembly even can be caused to produce vibration, cannot work.
In the internal flow of open type water inlet pool, water surface whirlpool and attached wall whirlpool are the two kinds of vortex rope easily produced in open type water inlet pool, and wherein water surface whirlpool is according to its air-breathing situation, usually four kinds of forms can be divided into: I type whirlpool, water flow rotary speed is comparatively slow, only forms more shallow funnel, not yet brings air into water pump; II type whirlpool, water flow rotary speed is accelerated, and funnel is comparatively dark, brings air into water pump intermittently, only has slight impact to pump performance; III type whirlpool: water flow rotary speed is very fast, and funnel gos deep into suction sleeve, and air enters water pump continuously, produces the operation of water pump and has a strong impact on; IV type whirlpool, current sharply rotate around suction sleeve, and whirlpool center is consistent with suction sleeve center, and large quantity of air enters water pump, and water pump assembly produces high vibration so that cannot run.When water pump suction pipe depth of immersion is inadequate, very easily produce water surface whirlpool, water body pressure near water surface whirlpool sharply declines, current gradient is very large, water surface whirlpool enters in pump with current easily brings out water pump generation cavitation and cavitation erosion, reduce inflow-rate of water turbine, the safe and stable operation of water pump and pumping plant is affected.The water surface volute state of quovis modo all can have an impact to the operation of water pump, therefore eliminates water surface whirlpool and guarantees that the safe operation demonstrate,proving pumping plant seems particularly important.
For eliminating the vortex rope in small and medium-sized pumping station open type water inlet pool, the counteracting vortex often taked at present has: in open type water inlet pool, arrange anti-whirlpool beam, anti-whirlpool swash plate and the whirlpool cone etc. that disappears, but these counteracting vortex only can eliminate attached wall whirlpool, can not eliminate water surface whirlpool.
Model utility content
For solving the problem in small and medium-sized pumping station open type water inlet pool water surface whirlpool, the flat deck waterborne that the utility model proposes a kind of open type water inlet pool disappears whirlpool device.
The utility model comprises suction sleeve, connects oviduct with one heart in the lower end of suction sleeve, and it is characterized in that floats in the top overcoat circle of suction sleeve covers.
The utility model is simply rational in infrastructure, manufacture easily, practical and convenient, this device is directly dropped in the water inlet pool of open type, circle float lid effect under, all the time this device circle can be kept to float cover with lower position below the water surface, and the circular lid that floats is in level, the flow condition of suction sleeve periphery free surface of water effectively can be improved by the utility model, reduce the probability that suction sleeve surface peripheral area vortex rope produces, and little on the impact of water inlet pool internal flow state, for unit fixed on water pump suction provides good inflow condition.
The utility model can be applicable to the construction and upgrading of small and medium-sized pumping station engineering, and can disappear whirlpool rectification effectively, improves the cavitation performance of pump-unit, the operational efficiency of lift pump device, and easy construction, cheap.
Further, circle described in the utility model is floated to cover and is arranged with oviduct is concentric, and the water surface whirlpool suction bell pipe within the scope of the same radius being the center of circle with oviduct center can be avoided inner.
The float external diameter of lid of described circle is 1.5 ~ 2.0 times of suction sleeve external diameter.Adopting this external diameter than playing to save while material prevents the water surface whirlpool of suction sleeve periphery from entering oviduct inside with current to greatest extent.
Described circle float lid thickness be 0.05 ~ 0.10m.This thickness while guarantee float cover Rigidity and strength, can reach the object of saving material.
Accompanying drawing explanation
Illustrate that the utility model is described in further detail below in conjunction with accompanying drawing and accompanying drawing:
The schematic three dimensional views of Fig. 1 the utility model in pond.
Fig. 2 is the front view of the utility model in pond.
Fig. 3 is the plan view of the utility model in pond.
Embodiment
As shown in Figure 1, 2, 3, the utility model connects oviduct 4 with one heart in the lower end of suction sleeve 3, and at the showy lid 1 of top overcoat circle of suction sleeve 4, and the circular lid 1 that floats is arranged with oviduct 4 is concentric.
The circular lid 1 that floats is in oblate cylinder, and the external diameter of circular float lid 1 internal diameter R1 size and suction sleeve 4 is suitable, and the circular lid 1 external diameter R2 that floats is 1.5 ~ 2.0 times of suction sleeve 4 external diameter, and thickness is 0.05 ~ 0.10m.
The circular lid 1 that floats can adopt light-weight high-strength material processing and fabricating, and adopts lightweight bolt etc. to be fixedly connected on suction sleeve 3 with form of splitting.
In figure, 2 is side opening open form water inlet pool.
Claims (4)
1. the whirlpool device that disappears of open type water inlet pool, comprises suction sleeve, connects oviduct with one heart in the lower end of suction sleeve, and it is characterized in that floats in the top overcoat circle of suction sleeve covers.
2. the whirlpool device that disappears of open type water inlet pool according to claim 1, is characterized in that the described circle lid that floats is arranged with oviduct is concentric.
3. the whirlpool device that disappears of open type water inlet pool according to claim 2, is characterized in that the float external diameter of lid of described circle is 1.5 ~ 2.0 times of suction sleeve external diameter.
4. the whirlpool device that disappears of open type water inlet pool according to claim 3, is characterized in that the float thickness of lid of described circle is 0.05 ~ 0.10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069185.8U CN205225878U (en) | 2015-12-21 | 2015-12-21 | Surface of water of open type intake pool whirlpool device that disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069185.8U CN205225878U (en) | 2015-12-21 | 2015-12-21 | Surface of water of open type intake pool whirlpool device that disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225878U true CN205225878U (en) | 2016-05-11 |
Family
ID=55900947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521069185.8U Expired - Fee Related CN205225878U (en) | 2015-12-21 | 2015-12-21 | Surface of water of open type intake pool whirlpool device that disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759667A (en) * | 2016-11-18 | 2017-05-31 | 武汉大学 | Packaged type pumping plant intake pool vortex reducing means |
| CN116575413A (en) * | 2023-06-12 | 2023-08-11 | 江苏大学 | Floating type counter-rotating vortex eliminating device of pump station and pump station |
-
2015
- 2015-12-21 CN CN201521069185.8U patent/CN205225878U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759667A (en) * | 2016-11-18 | 2017-05-31 | 武汉大学 | Packaged type pumping plant intake pool vortex reducing means |
| CN106759667B (en) * | 2016-11-18 | 2020-01-24 | 武汉大学 | Movable vortex-eliminating device for water inlet pool of pump station |
| CN116575413A (en) * | 2023-06-12 | 2023-08-11 | 江苏大学 | Floating type counter-rotating vortex eliminating device of pump station and pump station |
| CN116575413B (en) * | 2023-06-12 | 2024-05-14 | 江苏大学 | Floating type counter-rotating vortex eliminating device of pump station and pump station |
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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: 20160511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |