CN105544475B - A kind of novel fabricated pumping plant inspection platform vortex reducing means and method - Google Patents
A kind of novel fabricated pumping plant inspection platform vortex reducing means and method Download PDFInfo
- Publication number
- CN105544475B CN105544475B CN201610059107.2A CN201610059107A CN105544475B CN 105544475 B CN105544475 B CN 105544475B CN 201610059107 A CN201610059107 A CN 201610059107A CN 105544475 B CN105544475 B CN 105544475B
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- concrete
- side beams
- inspection platform
- water
- support beam
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
Abstract
The present invention relates to a kind of novel fabricated pumping plant inspection platform vortex reducing means and method, belongs to hydraulic engineering, municipal works technical field, it is characterized in that：The inspection platform by the side beams of concrete that meets water, nearly water suction horn mouth side beams of concrete, support beam group into；The upper right side of the side beams of concrete that meets water is provided with the first rectangular indentation that can place support beam, the upper left side of the nearly water suction horn mouth side beams of concrete is provided with the second rectangular indentation that can place support beam, and the support beam both ends can hang the first rectangular indentation for being supported on meet water side beams of concrete and nearly water suction horn mouth side beams of concrete, at the second rectangular indentation.By setting assembled Novel maintenance platform to ensure positive place's work of inspection platform in intake pool, while good rectification and excessively stream effect can be played in unit operation, hence it is evident that improve the bad fluidised form of inspection platform, eliminate whirlpool, hydraulic loss substantially reduces.
Description
Technical field
The present invention relates to a kind of novel fabricated pumping plant inspection platform vortex reducing means and method, belong to hydraulic engineering, municipal administration
Field of engineering technology.
Background technology
Velocity flow profile in intake pool is uneven, or whirlpool occurs, can not only significantly reduce water pump energy characteristics and
Cavitation performance, but also the vibrations of water pump assembly may be caused, or even can not normal work.Only possesses good flow condition
It just can guarantee that water pump safe and highly efficient operation.Open type intake pool is at home and abroad widely used in Practical Project, so numerous country
Outer experts and scholars have carried out lot of experiments research work to open type intake pool, obtain many beneficial achievements, and be applied to work
Journey is put into practice.In engineering design, it need to often increase inspection platform in intake pool, in order to install and repair apparatus.In intake pool
After setting inspection platform, make to become disorderly complicated in intake pool；Easily there is transverse axis whirlpool below inspection platform simultaneously, cause loudspeaker
Mouth outlet hydraulic performance decreases.
To eliminate whirlpool in intake pool, prevent vortex rope from being formed, and improve intake pool fluidised form have patent at present and be related to correlation
Measure：Application for a patent for invention 201510153321X proposes to set one 1/4 ellipse immediately below horn mouth in closed intake pool
Conical surface taper platform, to improve bad fluidised form in closed intake pool, pump efficiency is improved, while eliminate the included bottom whirlpool of intake pool
And do not induce new recirculating zone and whirlpool.But the patent is not directed to set structures situation in intake pool, not in view of structure
Build the elimination of whirlpool around thing.Authorize utility model patent CN201520191918 set in open type intake pool rear wall every
Wall, it can effectively improve 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 bad fluidised form and recirculating zone as caused by open type intake pool back wall distance
Generation, be not related to the elimination of the transverse axis whirlpool around inspection platform.Existing patent is more for water surface whirlpool in intake pool
With the generation in attached bottom whirlpool, have no and set the patent of inspection platform counteracting vortex to disclose, and due in current engineering, inspection platform is
Integral prefabricated type structure, block water serious, hydraulic loss is big.
The content of the invention
The present invention be directed to above-mentioned the deficiencies in the prior art, there is provided one kind can assemble and solve inspection platform block water seriously,
Fluidised form disorder problem in pond, eliminate transverse axis whirlpool under inspection platform and do not induce the novel fabricated pump of new recirculating zone or whirlpool
Stand inspection platform vortex reducing means and method.
The object of the present invention is achieved like this, a kind of novel fabricated pumping plant inspection platform vortex reducing means, including sets
Inspection platform in intake pool, it is characterized in that：The inspection platform is by the side beams of concrete that meets water, nearly water suction horn mouth side coagulation
Tu Liang, support beam group into；The upper right side of the side beams of concrete that meets water is provided with the first rectangular indentation that can place support beam, described
The upper left side of nearly water suction horn mouth side beams of concrete is provided with the second rectangular indentation that can place support beam, support beam both ends branch
Support at the first rectangular indentation, the second rectangular indentation of meet water side beams of concrete and nearly water suction horn mouth side beams of concrete, and prop up
Support beam can be hung at the first rectangular indentation, the second rectangular indentation.
The support beam is steel plate or concrete slab.
The side beams of concrete that meets water is the streamlined section of double semi arches connections, wherein arc radius be R1=0.2 ~
0.4m, R2=1.0 ~ 1.5m；The width B1 of upper right side rectangular indentation of side beams of concrete of meeting water is 20cm, height H1 is 25 ~
35cm。
The width B2 of the nearly water suction horn mouth side beams of concrete is 80 ~ 100cm, and height H2 is 125 ~ 150cm.
The quantity of the inspection platform is 2 ~ 4.
A kind of novel fabricated pumping plant inspection platform disappears vortex method, it is characterized in that：Including the maintenance being arranged in intake pool
Platform, the inspection platform by the side beams of concrete that meets water, nearly water suction horn mouth side beams of concrete, support beam group into；It is described to meet water
The upper right side of side beams of concrete is provided with the first rectangular indentation that can place support beam, the nearly water suction horn mouth side beams of concrete
Upper left side is provided with the second rectangular indentation that can place support beam, and the support beam both ends, which can be hung, is supported on the side beams of concrete that meets water
At the first rectangular indentation, the second rectangular indentation with nearly water suction horn mouth side beams of concrete；Inspection platform is placed in intake pool
Between water inlet and horn mouth, when current flow to pump sump horn mouth from the influent side of intake pool, current are flat by maintenance
Platform obstructs, and the support beam at inspection platform is hung into the first rectangular indentation, at the second rectangular indentation, no support beam, water body can
The larger space smoothly passed between the side beams of concrete that meets water, nearly water suction horn mouth side beams of concrete is downwardly towards horn mouth,
Serve Prevention and dissipation effect；The side beams of concrete that meets water is streamlined structure, and no water caltrop, current smooth out when water body flows through, and avoid
Whirlpool is produced after the side beams of concrete that meets water.
The support beam is steel plate or concrete slab.
The side beams of concrete that meets water is the streamlined section of double semi arches connections, wherein arc radius be R1=0.2 ~
0.4m, R2=1.0 ~ 1.5m；The width B1 of upper right side rectangular indentation of side beams of concrete of meeting water is 20cm, height H1 is 25 ~
35cm。
The width B2 of the nearly water suction horn mouth side beams of concrete is 80 ~ 100cm, and height H2 is 125 ~ 150cm.
The quantity of the inspection platform is 2 ~ 4.
The present invention is rational in infrastructure simply, it is easy, easy to use to manufacture, in Fig. 1, according to being flowed in pumping plant intake pool
State is analyzed, and sets conventional overall inspection platform in intake pool, current from influent side flow to pump sump horn mouth when, current by
Obstructed to inspection platform, current streamline turbulence, in inspection platform larger recirculating zone formed below, whirlpool is will appear from when serious, by
Nearer away from horn mouth in inspection platform, recirculating zone and caused whirlpool will enter horn mouth, cause horn mouth water inlet uneven,
Water pump is caused not start when serious.
In order to solve this problem, in Fig. 2, in the present invention, novel fabricated inspection platform is two fixing concretes
Beam is respectively meet water side beams of concrete, nearly water suction horn mouth side beams of concrete with being connected composition, two fixing concrete beams.
Wherein：
1）The side beams of concrete that meets water is the streamlined section of double semi arches connections, wherein arc radius be R1=（0.2~0.4）
M, R2=（1.0~1.5）M, the upper right side for the side beams of concrete that meets water set the first rectangular indentation that can place support beam, its first square
V notch v width B1=20cm, height H1=25 ~ 35cm.
2）Nearly water suction horn mouth side beams of concrete is rectangular band breach section.Wherein closely absorb water horn mouth side beams of concrete
Size be width B2=（80~100）Cm, height H2=（125~150）Cm, nearly the second rectangle for absorbing water horn mouth side beams of concrete lack
Mouth size is identical with first rectangular indentation in the side beams of concrete upper right corner that meets water.
3）2 ~ 4 pieces of support beams of arrangement in intake pool（Steel plate or concrete slab）, the length of support beam is 150 ~ 200cm, branch
The span L of support beam adds 2 times of nearly water suction horn mouth side beams of concrete width B2 for support beam length, and both ends are supported on the side that meets water and mixed
At the rectangular indentation of solidifying Tu Liang and nearly horn mouth beams of concrete, support beam（Steel plate or concrete slab）Suspension hook is arranged to lift by crane.
When needing maintenance in intake pool, by support beam（Steel plate or concrete slab）Assembled at lifting to inspection platform horizontal plane；
When unit normal operation, by support beam（Steel plate or concrete slab）Hang intake pool.
4）The side beams of concrete that meets water is streamlined structure, and no water caltrop, current smooth out when water body flows through, and are produced after avoiding beam
Whirlpool, simultaneously because support beam during unit operation at inspection platform（Steel plate or concrete slab）Hang, anhydrous planar structure, i.e.,
Without support beam, water body can be smoothly passed between two beams（Meet water side beams of concrete, nearly water suction horn mouth side beams of concrete）'s
Larger space is downwardly towards horn mouth, serves Prevention and dissipation effect.
Beneficial effect：
By the way that positive place's work of inspection platform can be ensured in intake pool setting assembled Novel maintenance platform, while in machine
Good rectification and excessively stream effect can be played during group operation, hence it is evident that improve the bad fluidised form of inspection platform, eliminate whirlpool, waterpower damage
Mistake substantially reduces.This patent is applied to pumping plant construction and upgrading, can effectively improve pumping station operation efficiency, and it is pitting to improve pump installation
Energy.
To sum up, novel fabricated inspection platform, which can improve, sets fluidised form disorder problem in intake pool, and particularly maintenance is flat
Fluidised form challenge around platform, efficiency of pumping station is improved, transverse axis whirlpool under inspection platform is eliminated and does not induce new recirculating zone or whirlpool
Whirlpool.
With the construction of South-to-North Water Transfer Project and the implementation of national large pumping station technological transformation, there are seats up to a hundred altogether
The intake pool fluidised form of pumping plant is needed to improve, therefore this patent can be applied and implemented, and obtains larger economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is ordinary rectangular inspection platform fluidised form and structure chart in intake pool.
Fig. 2 is novel fabricated inspection platform structure chart in intake pool under unit maintenance state.
Fig. 3 is novel fabricated inspection platform sectional view.
Novel fabricated inspection platform fluidised form figure when Fig. 4 is unit operation.
In figure：1 inspection platform, 2 horn mouths, 3 support beams, 4 meet water side beams of concrete, 5 nearly water suction horn mouth side concrete
Beam.
Embodiment
Below in conjunction with accompanying drawing and brief description of the drawings, the present invention is further illustrated.
A kind of novel fabricated pumping plant inspection platform vortex reducing means, including the inspection platform 1 being arranged in intake pool, it is described
Inspection platform 1 is made up of the side beams of concrete 4 that meets water, nearly water suction horn mouth side beams of concrete 5, support beam 3；In the side concrete that meets water
The upper right side of beam 4 sets the first rectangular indentation that can place support beam 3, and the nearly upper left side for absorbing water horn mouth side beams of concrete 5 is set
The second rectangular indentation of support beam 3 can be placed by putting, and the both ends of support beam 3, which can be hung, is supported on the side beams of concrete 4 and near of meeting water
Absorb water the first rectangular indentation of horn mouth side beams of concrete 5, at the second rectangular indentation.
Wherein, the support beam 3 is steel plate or concrete slab.The side beams of concrete 4 that meets water is the streamline of double semi arch connections
Type section, wherein arc radius are R1=0.2 ~ 0.4m, R2=1.0 ~ 1.5m.Meet water the upper right side rectangular indentation of side beams of concrete 4
Width B1=20cm, height H1=25 ~ 35cm.Width B2=80 ~ 100cm of the nearly water suction horn mouth side beams of concrete 5 is high
Spend H2=125 ~ 150cm.
In the present invention, the quantity of inspection platform 1 is 2 ~ 4.
When specifically used, inspection platform 1 is placed between the water inlet of intake pool and horn mouth 2, when current are from intake pool
When influent side flows to pump sump horn mouth 2, current are obstructed by inspection platform 1, by the branch at inspection platform 1 during unit operation
Support beam 3 is hung, anhydrous planar structure, and water body can smoothly pass over the side beams of concrete 4 that meets water, nearly water suction horn mouth side concrete
Larger space between beam 5 is downwardly towards horn mouth 2, serves Prevention and dissipation effect；The side beams of concrete 4 that meets water is streamlined knot
Structure, no water caltrop, current are smoothed out when water body flows through, and whirlpool is produced after avoiding the side beams of concrete 4 that meets water.
The beams of concrete of novel fabricated inspection platform 1（Meet water side beams of concrete 4, nearly water suction horn mouth side beams of concrete
5）Implemented by cast in situs mode, support beam 3（Steel plate or concrete slab）Hung in by lifting appliance at inspection platform.
When needing maintenance, by support beam 3（Steel plate or concrete slab）It is hung to the beams of concrete of inspection platform 1（The side that meets water is mixed
Coagulate native beam 4, nearly water suction horn mouth side beams of concrete 5）At rectangular indentation.During unit operation, by support beam 3（Steel plate or concrete
Plate）Go out intake pool.
Claims (8)
1. a kind of novel fabricated pumping plant inspection platform vortex reducing means, including the inspection platform being arranged in intake pool（1）, it is special
Sign is：The inspection platform（1）By the side beams of concrete that meets water（4）, nearly water suction horn mouth side beams of concrete（5）, support beam（3）Group
Into；The side beams of concrete that meets water（4）Upper right side be provided with can place support beam（3）The first rectangular indentation, the nearly water suction
Horn mouth side beams of concrete（5）Upper left side be provided with can place support beam（3）The second rectangular indentation, the support beam（3）Two
End is supported on the side beams of concrete that meets water（4）With nearly water suction horn mouth side beams of concrete（5）The first rectangular indentation, the second rectangle lacks
At mouthful, and support beam（3）It can be hung at the first rectangular indentation, the second rectangular indentation；The side beams of concrete that meets water（4）To be double
The streamlined section of semi arch connection, wherein arc radius is R1=0.2 ~ 0.4m, R2=1.0 ~ 1.5m；Meet water side beams of concrete
（4）The width B1 of upper right side rectangular indentation be 20cm, height H1 is 25 ~ 35cm；The nearly water suction horn mouth side beams of concrete
（5）Width B2 be 80 ~ 100cm, height H2 is 125 ~ 150cm.
2. according to a kind of novel fabricated pumping plant inspection platform vortex reducing means described in claim requirement 1, it is characterized in that：It is described
Support beam（3）For steel plate or concrete slab.
The whirlpool 3. a kind of novel fabricated pumping plant inspection platform according to claim requires 1-2 any one claims disappears
Device, it is characterized in that：The inspection platform（1）Quantity be 2 ~ 4.
The vortex method 4. a kind of novel fabricated pumping plant inspection platform disappears, it is characterized in that：Maintenance including being arranged in intake pool is put down
Platform（1）, the inspection platform（1）By the side beams of concrete that meets water（4）, nearly water suction horn mouth side beams of concrete（5）, support beam（3）
Composition；The side beams of concrete that meets water（4）Upper right side be provided with can place support beam（3）The first rectangular indentation, it is described near to inhale
Water horn mouth side beams of concrete（5）Upper left side be provided with can place support beam（3）The second rectangular indentation, the support beam（3）
Both ends, which can be hung, is supported on the side beams of concrete that meets water（4）With nearly water suction horn mouth side beams of concrete（5）The first rectangular indentation,
At two rectangular indentations；By inspection platform（1）It is placed in the water inlet and horn mouth of intake pool（2）Between, when current are from intake pool
Influent side flows to pump sump horn mouth（2）When, current are by inspection platform（1）Barrier, by inspection platform（1）The support beam at place
（3）Hang, anhydrous planar structure, water body can smoothly pass over the side beams of concrete that meets water（4）, nearly water suction horn mouth side concrete
Beam（5）Between larger space be downwardly towards horn mouth（2）, serve Prevention and dissipation effect；Meet water side beams of concrete（4）For stream
Linear structure, no water caltrop, current smooth out when water body flows through, and avoid the side beams of concrete that meets water（4）After produce whirlpool.
The vortex method 5. a kind of novel fabricated pumping plant inspection platform according to claim requirement 4 disappears, it is characterized in that：It is described
Support beam（3）For steel plate or concrete slab.
The vortex method 6. a kind of novel fabricated pumping plant inspection platform according to claim requirement 4 disappears, it is characterized in that：It is described
Meet water side beams of concrete（4）For the streamlined section of double semi arches connection, wherein arc radius is R1=0.2 ~ 0.4m, R2=1.0 ~
1.5m；Meet water side beams of concrete（4）The width B1 of upper right side rectangular indentation be 20cm, height H1 is 25 ~ 35cm.
The vortex method 7. a kind of novel fabricated pumping plant inspection platform according to claim requirement 4 disappears, it is characterized in that：It is described
Nearly water suction horn mouth side beams of concrete（5）Width B2 be 80 ~ 100cm, height H2 is 125 ~ 150cm.
The whirlpool 8. a kind of novel fabricated pumping plant inspection platform according to claim requires 4-7 any one claims disappears
Method, it is characterized in that：The inspection platform（1）Quantity be 2 ~ 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610059107.2A CN105544475B (en) | 2016-01-28 | 2016-01-28 | A kind of novel fabricated pumping plant inspection platform vortex reducing means and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059107.2A CN105544475B (en) | 2016-01-28 | 2016-01-28 | A kind of novel fabricated pumping plant inspection platform vortex reducing means and method |
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| CN105544475A CN105544475A (en) | 2016-05-04 |
| CN105544475B true CN105544475B (en) | 2018-01-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1483014A1 (en) * | 1987-01-04 | 1989-05-30 | Ленинградское отделение Всесоюзного проектно-изыскательского и научно-исследовательского института "Гидропроект" им.С.Я.Жука | Energy dissipator of pressure spillway stream |
| CN201003294Y (en) * | 2007-01-12 | 2008-01-09 | 扬州大学 | Pumping station water-reception pool |
| CN203067358U (en) * | 2013-01-24 | 2013-07-17 | 扬州大学 | Novel open-type water pump water inlet pool |
| CN204238189U (en) * | 2014-10-15 | 2015-04-01 | 中国长江三峡集团公司 | Water inlet disappears whirlpool device |
| CN205776110U (en) * | 2016-01-28 | 2016-12-07 | 扬州大学 | A kind of novel fabricated pumping plant inspection platform vortex reducing means |
-
2016
- 2016-01-28 CN CN201610059107.2A patent/CN105544475B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1483014A1 (en) * | 1987-01-04 | 1989-05-30 | Ленинградское отделение Всесоюзного проектно-изыскательского и научно-исследовательского института "Гидропроект" им.С.Я.Жука | Energy dissipator of pressure spillway stream |
| CN201003294Y (en) * | 2007-01-12 | 2008-01-09 | 扬州大学 | Pumping station water-reception pool |
| CN203067358U (en) * | 2013-01-24 | 2013-07-17 | 扬州大学 | Novel open-type water pump water inlet pool |
| CN204238189U (en) * | 2014-10-15 | 2015-04-01 | 中国长江三峡集团公司 | Water inlet disappears whirlpool device |
| CN205776110U (en) * | 2016-01-28 | 2016-12-07 | 扬州大学 | A kind of novel fabricated pumping plant inspection platform vortex reducing means |
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| Publication number | Publication date |
|---|---|
| CN105544475A (en) | 2016-05-04 |
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