CN205475435U - Novel pump station overhauls platform rectification and prevents whirlpool device - Google Patents
Novel pump station overhauls platform rectification and prevents whirlpool device Download PDFInfo
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- CN205475435U CN205475435U CN201620086287.9U CN201620086287U CN205475435U CN 205475435 U CN205475435 U CN 205475435U CN 201620086287 U CN201620086287 U CN 201620086287U CN 205475435 U CN205475435 U CN 205475435U
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- platform
- round tube
- upstream face
- intake pool
- inspection platform
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Abstract
The utility model relates to a novel pump station overhauls platform rectification and prevents whirlpool device belongs to hydraulic engineering, municipal works technical field, including setting up the maintenance platform in the intake pool, characterized by: the platform upstream face that overhauls the platform is equipped with the flexible hole of a plurality of upstream faces, and the platform horizontal plane that overhauls the platform is equipped with a plurality of flexible holes of platform horizontal plane. Through the utility model discloses, examining and repairing the platform and placing in between the water inlet and horn mouth of intake pool, when pump station intake pool horn mouth absorbed water, the middle part rivers were flowed through when examining and repairing platform upstream face in the intake pool, and the water takes the flexible downthehole inflow of upstream face of certain contained angle to examine and repair the platform below from the platform upstream face, when the platform horizontal plane was flowed through to maintenance platform upper portion water, the water went into to overhaul below the platform from the flexible orifice flow of a plurality of platform horizontal planes that the platform horizontal plane is perpendicular flat to, eliminated the recirculation region of overhauing the platform below, smooth -going flow state, the swirl avoided produces.
Description
Technical field
This utility model relates to a kind of pumping station inspection platform rectification anti-whirlpool device, belongs to hydraulic engineering, municipal works
Technical field.
Background technology
Velocity flow profile in intake pool is uneven, or whirlpool occurs, not only can significantly reduce water pump energy characteristics and
Cavitation performance, and also can result in the vibrations of water pump assembly, even cannot normally work.Only possesses good flow condition
Guarantee water pump safe and highly efficient operation.Open type intake pool Practical Project at home and abroad is widely used, thus numerous domestic
Outer experts and scholars have carried out lot of experiments research work to open type intake pool, it is thus achieved that the most useful achievement, and are applied to work
Journey is put into practice.In engineering design, often need to increase inspection platform in intake pool, in order to install and repair apparatus.In intake pool
After inspection platform is set, in making intake pool, become disorderly complicated；Transverse axis whirlpool easily occurs below inspection platform simultaneously, causes loudspeaker
Mouth outlet hydraulic performance decreases.
For whirlpool in elimination intake pool, prevent vortex rope from being formed, and improve intake pool fluidised form, have patent at present and relate to being correlated with
Measure: invention disclosed patent application 20151015332 proposes to arrange one 1/4 immediately below horn mouth in closed intake pool
Elliptic cone taper platform, in order to fluidised form bad in improving closed intake pool, improves pump efficiency, eliminates intake pool included simultaneously
Whirlpool, the end and do not induce new recirculating zone and whirlpool.But this patent arranges structures situation in being not directed to intake pool, do not consider
The elimination of whirlpool around structures.Authorize practical patent CN201520191918 arrange in open type intake pool rear wall every
Wall, can be effectively improved the fluidised form at open type intake pool rear wall, the lifting pump sump uniformity, prevent open type intake pool rear wall
Place's backflow and vortex rope occur, but this measure is only for the bad fluidised form caused by open type intake pool back wall distance and recirculating zone
Generation, do not relate to the elimination of transverse axis whirlpool around inspection platform.Existing patent is many for water surface whirlpool in intake pool
With the generation in whirlpool, the attached end, Prevention and dissipation measure when arranging inspection platform in relating to intake pool, without this respect patent disclosure.
Utility model content
This patent is for above-mentioned the deficiencies in the prior art, it is provided that one can be improved and arranges after inspection platform stream in intake pool
State disorder problem, improve efficiency of pumping station, eliminate transverse axis whirlpool under inspection platform and do not induce the novel of new recirculating zone or whirlpool
Pumping plant inspection platform rectification anti-whirlpool device.
The purpose of this utility model is achieved in that a kind of pumping station inspection platform rectification anti-whirlpool device, including setting
Put the inspection platform in intake pool, it is characterized in that: the platform upstream face of described inspection platform is provided with some upstream face round tube holes,
The platform level of inspection platform is provided with some platform level round tube holes.
Described upstream face round tube hole is from the horizontal by 15 ° ~ 25 ° angles, and the aperture of upstream face round tube hole is 5 ~ 8cm, meets
Pitch of holes between water surface round tube hole and upstream face round tube hole is 20 ~ 30cm.
Described platform level round tube hole is from the horizontal by 90 ° of angles, and some platform level round tube holes are blossom type
Being uniformly distributed on the platform level of inspection platform, the aperture of some platform level round tube holes is 5 ~ 8cm, platform level
It is 30 ~ 40cm that spacing figure is flowed in hole between round tube hole and platform level round tube hole downstream, and vertical current spacing is 40 ~ 50cm.
The height of described inspection platform is 125 ~ 150cm, platform upstream face width 80 ~ 100 cm of inspection platform, maintenance
A length of 180 ~ the 210cm of platform level of platform.
A kind of pumping station inspection platform rectification vortex breaking method, is characterized in that: include that the maintenance being arranged in intake pool is put down
Platform, the platform upstream face of described inspection platform is provided with some upstream face round tube holes, and the platform level of inspection platform is provided with some
Platform level round tube hole；Inspection platform is placed between the water inlet of intake pool and horn mouth, when pumping plant intake pool horn mouth
During water suction, when in intake pool, middle part current flow through inspection platform platform upstream face, water body upstream face circle at platform upstream face
Flow into below inspection platform in through hole；When inspection platform top water body flows through platform level, water body hangs down at platform level
The most flat some platform level round tube holes flow into below inspection platform, thus, eliminate the recirculating zone below inspection platform, flat
Along fluidised form, it is to avoid whirlpool produce.
Described upstream face round tube hole is from the horizontal by 15 ° ~ 25 ° angles, and the aperture of upstream face round tube hole is 5 ~ 8cm, meets
Pitch of holes between water surface round tube hole and upstream face round tube hole is 20 ~ 30cm.
Described platform level round tube hole is from the horizontal by 90 ° of angles, and some platform level round tube holes are blossom type
Being uniformly distributed on the platform level of inspection platform, the aperture of some platform level round tube holes is 5 ~ 8cm, platform level
It is 30 ~ 40cm that spacing figure is flowed in hole between round tube hole and platform level round tube hole downstream, and vertical current spacing is 40 ~ 50cm.
The height of described inspection platform is 125 ~ 150cm, platform upstream face width 80 ~ 100 cm of inspection platform, maintenance
A length of 180 ~ the 210cm of platform level of platform.
This utility model rational in infrastructure simple, manufacture easy, easy to use, arrange Novel maintenance platform purpose be for
The problems such as pond fluidised form disorder and transverse axis whirlpool are caused after inspection platform is set in solving intake pool.
Know-why of the present utility model: according to flow State Analysis in pumping plant intake pool, in Fig. 1, when in intake pool
Arranging conventional inspection platform, current are when influent side flows to pump sump horn mouth, and current are intercepted by inspection platform, current stream
Line is disorderly, in inspection platform bigger recirculating zone formed below, will appear from whirlpool, due to inspection platform away from horn mouth relatively time serious
Closely, the whirlpool of recirculating zone and generation will enter horn mouth, causes horn mouth water inlet uneven, causes water pump to open time serious
Dynamic.
For overcoming such problem, as described in Fig. 2,3,4, in this utility model, Novel maintenance platform is that two sides band is circular
Pore cross section structure, inspection platform height H=125 ~ 150cm, upstream face width B=80 ~ 100 cm of inspection platform, inspection platform
Platform level length L=180 ~ 210cm.Inspection platform upstream face arrange with horizontal direction angle theta=15 ° ~ 25 °), aperture
The equally distributed circular hole of R=5 ~ 8cm, pitch of holes T4=20 ~ 30cm；Such as Fig. 3, as described in 4, the platform level of inspection platform sets
Put and flow spacing figure T2=T1/2=30 ~ 40cm, vertical current spacing T3=downstream with horizontal direction angle 90 °, aperture R=5 ~ 8cm, hole
40 ~ 50cm, in blossom type equally distributed circular hole.
When pumping plant intake pool horn mouth absorbs water, when in intake pool, middle part current flow through the upstream face of Novel maintenance platform,
Flow into below inspection platform in the round tube hole of the certain angle of water body band at upstream face；When top water body flows through platform level,
Water body vertical circular through hole at horizontal plane flows into below inspection platform.By (including upstream face round tube hole, platform with round tube hole
Horizontal plane round tube hole) the effect of Novel maintenance platform, eliminate the recirculating zone below tradition inspection platform, smoothed out fluidised form,
The whirlpool avoided produces.
Beneficial effect:
Good rectified action can be played by arranging Novel maintenance platform at intake pool, be possible not only to be obviously improved inspection
Bad fluidised form around equating platform, and minimizing recirculating zone can be played and produce, play reduction swirling turbulent intensity, reach to eliminate
The effect of transverse axis whirlpool around platform.This patent is applied to pumping plant construction and upgrading, can be effectively improved pumping station operation efficiency, improves
Pump installation cavitation performance.
To sum up, Novel maintenance platform can improve and arranges fluidised form disorder problem in intake pool, particularly around inspection platform
Fluidised form challenge, improves efficiency of pumping station, eliminates under inspection platform transverse axis whirlpool and do not induce new recirculating zone or whirlpool.
Along with building and the enforcement of country's large pumping station technological transformation of South-to-North Water Transfer Project, there is seat up to a hundred altogether
The intake pool fluidised form of pumping plant needs to improve, and therefore this patent can be applied and implement, and obtains bigger economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is ordinary rectangular inspection platform fluidised form and structure chart in intake pool.
Fig. 2 is Novel maintenance platform fluidised form and structure chart in this utility model intake pool.
Fig. 3 is this utility model inspection platform sectional view.
Fig. 4 is this utility model inspection platform plane graph.
In figure: 1 inspection platform, 2 horn mouths, 3 platform level, 4 platform upstream faces, 5 upstream face round tube holes, 6 platform water
Flat circle through hole.
Detailed description of the invention
Illustrate this utility model is further described below in conjunction with accompanying drawing and accompanying drawing.
A kind of pumping station inspection platform rectification anti-whirlpool device, including the inspection platform 1 being arranged in intake pool, maintenance is flat
Platform 1 is placed between the water inlet of intake pool and horn mouth 2, the height H=125 ~ 150cm of inspection platform 1, the platform of inspection platform 1
Upstream face 4 width B=80 ~ 100 cm, the platform level 3 length L=180 ~ 210cm of inspection platform 1.
Platform upstream face 4 at inspection platform 1 arranges some upstream face round tube holes 5, upstream face round tube hole 5 and horizontal direction
Becoming 15 ° ~ 25 ° angles, set angle as θ, then θ=15 ° ~ 25 °, the aperture R of upstream face round tube hole 5 is 5 ~ 8cm, upstream face circle
Pitch of holes T4=20 between through hole 5 and upstream face round tube hole 5 ~ 30cm.
The platform level 3 of inspection platform 1 arranges some platform level round tube holes 6, described platform level circle
Through hole 6 is from the horizontal by 90 ° of angles, and some platform level round tube holes 6 are uniformly distributed in the flat of inspection platform 1 in blossom type
On platform horizontal plane 3, the aperture R of some platform level round tube holes 6 is 5 ~ 8cm, platform level round tube hole 6 and platform level
Flow spacing figure T2=T1/2=30 ~ 40cm downstream in hole between round tube hole 6, vertical current spacing T3=40 ~ 50cm.
Time specifically used, when pumping plant intake pool horn mouth 2 absorbs water, it is flat that intake pool interior middle part current flow through inspection platform 1
During platform upstream face 4, water body flows into below inspection platform 1 in the upstream face round tube hole 5 of the certain angle of band at platform upstream face 4；
When inspection platform 1 top water body flows through platform level 3, some platform level that water body is the most flat at platform level 3
Round tube hole 6 flows into below inspection platform 1, thus, eliminate the recirculating zone below inspection platform 1, smoothed out fluidised form, it is to avoid whirlpool
Whirlpool produces, it is simple to the water suction of horn mouth 2.
Claims (4)
1. a pumping station inspection platform rectification anti-whirlpool device, including the inspection platform (1) being arranged in intake pool, its feature
It is: the platform upstream face (4) of described inspection platform (1) is provided with some upstream face round tube holes (5), the platform water of inspection platform (1)
Plane (3) is provided with some platform level round tube holes (6).
2. require a kind of pumping station inspection platform rectification anti-whirlpool device described in 1 according to claim, it is characterized in that: described in meet
Water surface round tube hole (5) is 5 ~ 8cm from the horizontal by 15 ° ~ 25 ° angles, the aperture of upstream face round tube hole (5), and upstream face is flexible
Pitch of holes between hole (5) and upstream face round tube hole (5) is 20 ~ 30cm.
3. require a kind of pumping station inspection platform rectification anti-whirlpool device described in 1 according to claim, it is characterized in that: be described flat
Platform horizontal plane round tube hole (6) is uniformly distributed in blossom type from the horizontal by 90 ° of angles, some platform level round tube holes (6)
On the platform level (3) of inspection platform (1), the aperture of some platform level round tube holes (6) is 5 ~ 8cm, plateau levels
It is 30 ~ 40cm that spacing is flowed in hole between face round tube hole (6) and platform level round tube hole (6) downstream, vertical current spacing is 40 ~
50cm。
4. require a kind of pumping station inspection platform rectification anti-whirlpool device described in 1 according to claim, it is characterized in that: described inspection
The height of equating platform (1) is 125 ~ 150cm, platform upstream face (4) width 80 ~ 100 cm of inspection platform (1), inspection platform
(1) platform level (3) a length of 180 ~ 210cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620086287.9U CN205475435U (en) | 2016-01-28 | 2016-01-28 | Novel pump station overhauls platform rectification and prevents whirlpool device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620086287.9U CN205475435U (en) | 2016-01-28 | 2016-01-28 | Novel pump station overhauls platform rectification and prevents whirlpool device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205475435U true CN205475435U (en) | 2016-08-17 |
Family
ID=56620140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620086287.9U Expired - Fee Related CN205475435U (en) | 2016-01-28 | 2016-01-28 | Novel pump station overhauls platform rectification and prevents whirlpool device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205475435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544651A (en) * | 2016-01-28 | 2016-05-04 | 扬州大学 | Novel pump station overhaul platform rectifying anti-vortex device and method |
| CN109235626A (en) * | 2018-10-31 | 2019-01-18 | 扬州大学 | Special-shaped thin board type eliminates reflux unit in a kind of box type bidirectional runner |
-
2016
- 2016-01-28 CN CN201620086287.9U patent/CN205475435U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544651A (en) * | 2016-01-28 | 2016-05-04 | 扬州大学 | Novel pump station overhaul platform rectifying anti-vortex device and method |
| CN109235626A (en) * | 2018-10-31 | 2019-01-18 | 扬州大学 | Special-shaped thin board type eliminates reflux unit in a kind of box type bidirectional runner |
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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: 20160817 Termination date: 20180128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |