CN204570821U - Open type intake pool under water flat deck disappears whirlpool device - Google Patents
Open type intake pool under water flat deck disappears whirlpool device Download PDFInfo
- Publication number
- CN204570821U CN204570821U CN201520193114.2U CN201520193114U CN204570821U CN 204570821 U CN204570821 U CN 204570821U CN 201520193114 U CN201520193114 U CN 201520193114U CN 204570821 U CN204570821 U CN 204570821U
- Authority
- CN
- China
- Prior art keywords
- oviduct
- under water
- flat deck
- intake pool
- open type
- 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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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relate to a kind of open type intake pool under water flat deck to disappear whirlpool device, belong to open type intake pool design field, comprise intake pool and be arranged on suction water pipe, the oviduct in intake pool, it is characterized in that: described oviduct mouth of pipe level adds a flat deck under water, described flat deck be under water a 1.4-1.6 that internal diameter is identical with oviduct nozzle diameter, external diameter is oviduct nozzle diameter doubly, thickness is the torus of 0.01m.Described flat deck under water screws with oviduct screw thread or is welded and fixed and is connected.The utility model rational in infrastructure simple, manufacture easy, easy to use, by the utility model, flat deck significantly can improve the fluidised form at open type intake pool oviduct place under water, extends the distance of flow direction-changing, and make suction water pipe suction flow velocity be tending towards even, effectively prevent the generation of whirlpool.
Description
Technical field
The utility model relate to a kind of open type intake pool under water flat deck to disappear whirlpool device, belong to open type intake pool design field.
Background technology
Large quantity research shows, when water pump suction pipe depth of immersion is inadequate, may produce vortex in intake pool pond.Research finds, surperficial vortex in intake pool and under water vortex rope are the main bad fluidised forms of harm water pump economy, safe operation, water body pressure near vortex sharply declines, current gradient is very large, and gas evolution in water body, when being accumulated to a certain degree, vortex will carry air formation vortex rope and enter in water inlet pipe, the operation of water pump is produced and has a strong impact on, after large quantity of air enters water pump, water pump blade by generations high vibration down to running.
At present, except taking in forebay to arrange except the rectification measure such as column or end bank, by arranging the generation that the measures such as deflection cone prevent whirlpool in intake pool, but can also can not play obvious eradicating efficacy for the vortex rope in the not enough situation of horn mouth water suction depth of immersion.
Utility model content
The utility model is exactly for above-mentioned the deficiencies in the prior art, provide a kind of mouth of pipe (horn mouth) that effectively can improve open type intake pool inside trumpet pipe absorb water depth of immersion not enough time pond in fluidised form, make the flow velocity uniformity in suction water pipe pipe, extend flow direction-changing distance and eliminate open type intake pool that whirlpool occurs under water flat deck to disappear whirlpool device.
The technical solution of the utility model is, a kind of open type intake pool under water flat deck disappears whirlpool device, comprise intake pool and be arranged on suction water pipe, the oviduct in intake pool, it is characterized in that: described oviduct mouth of pipe level adds a flat deck under water, described flat deck be under water a 1.4-1.6 that internal diameter is identical with oviduct nozzle diameter, external diameter is oviduct nozzle diameter doubly, thickness is the torus of 0.01m.
Described flat deck under water screws with oviduct screw thread or is welded and fixed and is connected.
The utility model rational in infrastructure simple, manufacture easy, easy to use, pass through the utility model, the oviduct mouth of pipe (horn mouth) level add the 1.4-1.6 of an internal diameter and the mouth of pipe (horn mouth) diameter that the mouth of pipe (horn mouth) diameter is identical, external diameter is oviduct of oviduct doubly, thickness is the flat deck under water of 0.01m torus shape, is equivalent to the mouth of pipe (horn mouth) diameter adding oviduct.
When water pump operation, current enter oviduct from collecting on four sides, it is the essential characteristic of open type intake pool flow, current will turn to before entering oviduct in very short distance, the bad fluidised form of easy generation, as not enough with the mouth of pipe (horn mouth) depth of immersion of oviduct, pool inner water stream will be aggravated disorderly, the distance of flow direction-changing can be extended by adding flat deck under water at the mouth of pipe (horn mouth) place, change the curvature of flow direction-changing, further adjustment is from forebay, intake pool inflow condition, the current near the mouth of pipe (horn mouth) are made to import oviduct along the uniform, smooth of flat deck under water of circle from surrounding, the cross-sectional flow uniformity in oviduct is improved, stabilization of fluidized, eliminate vortex rope occurrence condition.
Advantage of the present utility model:
Flat deck significantly can improve the fluidised form at open type intake pool oviduct place under water, extends the distance of flow direction-changing.And make suction water pipe suction flow velocity be tending towards even, effectively prevent the generation of whirlpool.This practicality new patent is applied to pumping plant construction and upgrading, can effectively improve pumping station operation efficiency, and disappear whirlpool rectification, and improve the cavitation performance of pump installation, and easy construction.Along with the construction of South-to-North Water Transfer Project and the enforcement of national small and medium-sized pumping station technological transformation, the intake pool fluidised form of up to a hundred pumping plants is had to need to improve altogether, by application and the enforcement of the utility model technology, larger economic benefit and social benefit can be obtained, be applicable to designing institute design adopt and in engineered middle enforcement.
Accompanying drawing explanation
Below in conjunction with accompanying drawing to open type intake pool under water flat deck be described further.
Fig. 1 is the 3-D view of whole open type intake pool.
Fig. 2 is top view of the present utility model.
In figure: 1 flat deck, 2 suction water pipes, 3 intake pools, 4 oviducts, R under water
1flat deck internal diameter, R under water
2flat deck external diameter under water.
Detailed description of the invention
Illustrate that the utility model is described in further detail below in conjunction with accompanying drawing and accompanying drawing.
A kind of open type intake pool under water flat deck disappears whirlpool device, comprise intake pool 3 and be arranged on suction water pipe 2, the oviduct 4 in intake pool 3, add a flat deck 1 under water in oviduct 4 mouth of pipe level, under water flat deck 1 be an internal diameter is identical with oviduct 4 nozzle diameter, external diameter is oviduct 4 nozzle diameter 1.4-1.6 doubly, thickness is the torus of 0.01m.Flat deck 1 screws with oviduct 4 screw thread or is welded and fixed and is connected under water.
We can set D
lfor the mouth of pipe (horn mouth) diameter of oviduct, so, one that adds in the mouth of pipe (horn mouth) level of oviduct under water the concrete size of flat deck 1 be: internal diameter R
1for D
l, external diameter R
2for 1.4-1.6D
l, thickness is 0.01m.Be equivalent to the mouth of pipe (horn mouth) diameter increasing oviduct 4.
Claims (2)
1. an open type intake pool under water flat deck to disappear whirlpool device, comprise intake pool (3) and be arranged on suction water pipe (2), the oviduct (4) in intake pool (3), it is characterized in that: described oviduct (4) mouth of pipe level adds a flat deck (1) under water, described flat deck under water (1) be an internal diameter is identical with oviduct (4) nozzle diameter, external diameter is oviduct (4) nozzle diameter 1.4-1.6 doubly, thickness is the torus of 0.01m.
2. open type intake pool according to claim 1 under water flat deck to disappear whirlpool device, it is characterized in that: described flat deck under water (1) screws with oviduct (4) screw thread or is welded and fixed and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193114.2U CN204570821U (en) | 2015-04-01 | 2015-04-01 | Open type intake pool under water flat deck disappears whirlpool device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193114.2U CN204570821U (en) | 2015-04-01 | 2015-04-01 | Open type intake pool under water flat deck disappears whirlpool device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204570821U true CN204570821U (en) | 2015-08-19 |
Family
ID=53863483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520193114.2U Expired - Fee Related CN204570821U (en) | 2015-04-01 | 2015-04-01 | Open type intake pool under water flat deck disappears whirlpool device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204570821U (en) |
Cited By (1)
| 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 |
-
2015
- 2015-04-01 CN CN201520193114.2U patent/CN204570821U/en not_active Expired - Fee Related
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 |
| CN106759667B (en) * | 2016-11-18 | 2020-01-24 | 武汉大学 | Movable vortex-eliminating device for water inlet pool of 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180401 |