CN108149769A - A kind of method for improving Urban Waterlogging pumping plant side unit Inlet flow pattern - Google Patents
A kind of method for improving Urban Waterlogging pumping plant side unit Inlet flow pattern Download PDFInfo
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- CN108149769A CN108149769A CN201711272918.1A CN201711272918A CN108149769A CN 108149769 A CN108149769 A CN 108149769A CN 201711272918 A CN201711272918 A CN 201711272918A CN 108149769 A CN108149769 A CN 108149769A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention discloses a kind of methods for improving Urban Waterlogging pumping plant side unit Inlet flow pattern, combined type fairing is set before two side unit intake pools, the input end of forebay sets joining section along the aileron of forebay, joining section is arc-shaped contraction section along main flow direction, one is set in forebay along the inclined slope of main flow direction, the present invention utilizes diversion pier, the combined type rectification measure of baffle pier and combination crossbeam plays rectification and homogenization to the influent stream of Urban Waterlogging pumping plant, the Inlet flow pattern of pumping plant side unit can be effectively improved and improve its uniformity, for ensureing Urban Waterlogging pumping plant safety, stablize, Effec-tive Function has important engineering application value.Rectification measure structure form proposed by the invention is simple, easily construction makes, it is submerged in below the water surface simultaneously without influencing pumping plant surrounding landscape, is suitble to promote the use of in influent stream complicated condition Urban Waterlogging pumping plant project for construction and upgrading especially more demanding to pumping plant landscape impact.
Description
Technical field
The invention belongs to hydraulic engineering drainage pumping stations technical fields, and in particular to a kind of raising Urban Waterlogging pumping plant side unit
The method of Inlet flow pattern.
Background technology
Due to unordered exploitation, it is serious to enclose and cultivate phenomenon, in addition the silt constantly factors such as siltation, the Reservoir in part coastal cities
Hold and constantly reduce, capacity of flood storage substantially reduces；Meanwhile reservoir is drained off floodwaters also naturally easily by off-lying sea tidal lockup, effective aerial drainage time
Limited, flood easily occurs for reservoir neighboring area.As the drainage pumping stations for effectively improving flood discharge flow, can solve coastal
The problems such as city reservoir capacity deficiency and neighboring area are drained flooded fields.But due to being limited by urban land anxiety, pumping plant floor space
It is less than normal, fabric structure is compacter so that Forebay of Pumping Station import is shunk unexpected, and mainstream incoming is often there are bias current in addition, easily
Forebay of Pumping Station import both sides is caused to flow back, causes pumping plant side unit Inlet flow pattern bad and seriously affects its safety run
Stability.
Invention content
The purpose of the present invention is in view of the above-mentioned problems, proposing a kind of side for improving Urban Waterlogging pumping plant side unit Inlet flow pattern
Method.
Purpose to realize the present invention, adopts the following technical scheme that：
A kind of method for improving Urban Waterlogging pumping plant side unit Inlet flow pattern sets combination before the intake pool of pumping plant two sides unit
Formula rectification measure, the combined type rectification measure are made of diversion pier, baffle pier and crossbeam, and the pumping plant import is linking
Section, the import of joining section communicates with extraneous waters, exports and is connected with Forebay of Pumping Station, and joining section is arc-shaped contraction along main flow direction
Section, to play preferable drainage effect, the exit width of joining section is B, entrance width for W and meet W=（1.2~2）B, disengaging
Mouth width degree, which differs greatly, construction cost to be caused to dramatically increase, and Forebay of Pumping Station length is L, width is and joining section exit width B
Equal, the Forebay of Pumping Station operation depth of water is H, has a slope before pumping plant intake pool, diffusion homogenization, slope slope can be played to influent stream
Top with forebay import distance C=（0~0.2）L can make it spread homogenization deficiency, slope angle β=10 ° ~ 15 °, slope angle apart from too far
Too small to make that Forebay of Pumping Station size is long, slope angle is excessive easily causes flow separation, pumping plant intake pool width is D, pumping plant both sides
Side machine set isolation pier width B1=（0.15~0.2）D, the too narrow then structural strength of width is insufficient, width too conference influences overflow section
Product；
Quantity N1=2 of the diversion pier, respectively before the machine set isolation pier of pumping plant two sides, diversion pier input end and slope slope
Top line is concordant and carries out cavetto to reduce water impact loss, and the port of export is connected with pumping plant side machine set isolation pier nose portion, diversion pier
Length L1=（0.6~0.9）L, the applicant research and analyse prove diversion pier the too short rectified action of length it is not notable, it is too long then
Its improvement does not dramatically increase while can additionally increase cost of manufacture and occupy volume, width B2 and side machine set isolation
Pier width B1 is equal, and the top of diversion pier and water surface distance H1=（0.05~0.1）H, distance is too small easily to expose the water surface and shadow
Ring pumping plant surrounding landscape, distance too conference is decreased obviously its rectified action；
Quantity N2=2 of the baffle pier, respectively on the center line of two sides unit, the length L2 of baffle pier=（0.4~
0.5）L, length too it is short can influence its rectification effect, it is too long cost of manufacture can be caused significantly to increase, the input end of baffle pier is with leading
The input end distance L3 of stream pier=（0.4~0.5）L, the applicant research and analyse that proof distance is too near or too far to be all unfavorable for its whole
Stream, the width B3 of baffle pier=（0.05~0.1）D, width is too narrow, which to be difficult to ensure that its structural strength, width are too wide, can reduce flow-passing surface
Product, the both ends cavetto of baffle pier are flushed with reducing hydraulic loss at the top of the top of baffle pier and diversion pier；
Quantity N3=2 ~ 4 of the crossbeam, are vertically evenly arranged, and crossbeam quantity easily causes larger hydraulic loss, quantity too much
It is very little then be unfavorable for adjust flow, beam width B4=（0.05~0.1）D, crossbeam is too wide to be increased cost of manufacture, too narrow easily make
It is insufficient into its structural strength, beam height H2=（0.1~0.15）H, the too small rectification effect to flow of beam height are bad, excessive
Overflow section can be caused insufficient, adjacent two crossbeams spacing H3=（0.05~0.12）H influences the whole of combination beam away from senior general excessively between the two
Effect is flowed, is flushed at the top of the top of top side crossbeam and baffle pier, the distance L4 of crossbeam and baffle pier input end=（0.1~
0.2）L apart from too far, is unfavorable for adjusting flow；
Preferably, diversion pier of the present invention, baffle pier and crossbeam are metal structure or reinforced concrete structure, to ensure group
Box-like rectification measure disclosure satisfy that the design and construction requirement of drainage pumping stations.
As a preferred embodiment, the pumping plant import joining section along main flow direction be arc-shaped contraction section, joining section
Exit width B is 70m, and entrance width W is 105m, and Forebay of Pumping Station length L is 25m, Forebay of Pumping Station operation depth of water H is 9m, pumping plant
Forebay slope top of the slope and forebay import distance C are 0m, and slope angle β is 10 °, and pumping plant intake pool width D is 8m, pumping plant two sides unit
It is 1.2m to separate pier width B1, and diversion pier quantity N1 is 2, and the length L1 of diversion pier is 15m, width B2 is 1.2m, water conservancy diversion pier top
Portion is 0.45m with water surface distance H1, and baffle pier quantity N2 is 2, and baffle pier input end is 10m with diversion pier input end distance L3,
Baffle pier length L2 is 10m, width B3 is 0.4m, and crossbeam quantity N3 is 2, and beam width B4 is 0.6m, height H2 is 1m, adjacent
Two crossbeam spacing H3 are 1.08m, and crossbeam is 3m with baffle pier input end spacing L4.
As another preferred embodiment, the pumping plant import joining section is arc-shaped contraction section along main flow direction, is connected
Section exit width B is 70m, and entrance width W is 140m, and Forebay of Pumping Station length L is 25m, and Forebay of Pumping Station operation depth of water H is 9m, is pumped
Forebay slope top of the slope of standing and forebay import distance C are 5m, and slope angle β is 15 °, and pumping plant intake pool width D is 8m, pumping plant two sides machine
Component dividing pier width B1 is 1.6m, and diversion pier quantity N1 is 2, and diversion pier length L1 is 22.5m, width B2 is 1.6m, diversion pier
Top is 0.9m with water surface distance H1, and baffle pier quantity N2 is 2, and baffle pier input end is with diversion pier input end distance L3
12.5m, baffle pier length L2 is 12.5m, width B3 is 0.8m, and crossbeam quantity N3 is 4, and beam width B4 is 0.8m, height H2
For 0.9m, adjacent two crossbeams spacing H3 is 0.45m, and crossbeam is 5m with baffle pier input end spacing L4.
As another preferred embodiment, the pumping plant import joining section is arc-shaped contraction section along main flow direction, is connected
Section exit width B is 70m, and entrance width W is 84m, and Forebay of Pumping Station length L is 25m, and Forebay of Pumping Station operation depth of water H is 9m, pumping plant
Forebay slope top of the slope and forebay import distance C are 2m, and slope angle β is 12 °, and pumping plant intake pool width D is 8m, pumping plant two sides unit
It is 1.5m to separate pier width B1, and diversion pier quantity N1 is 2, and the length L1 of diversion pier is 20m, width B2 is 1.5m, water conservancy diversion pier top
Portion is 0.6m with water surface distance H1, and baffle pier quantity N2 is 2, and baffle pier input end is 11m with diversion pier input end distance L3, point
Stream pier length L2 is 12m, width B3 is 0.6m, and crossbeam quantity N3 is 3, and beam width B4 is 0.4m, height H2 is 1.35m, phase
Two crossbeam spacing H3 of neighbour are 0.8m, and crossbeam is 2.5m with baffle pier input end spacing L4.
The beneficial effects of the invention are as follows：
The method of the present invention for improving Urban Waterlogging pumping plant side unit Inlet flow pattern, using combined type rectification measure to city
Import complexity influent stream in drainage pumping stations plays the role of rectification and homogenizing flow, so as to be effectively improved the feed water flow of pumping plant side unit
State and its uniformity of raising, have the safety and stability Effec-tive Function for ensuring Urban Waterlogging pumping plant particularly side unit important
Engineering application value.
Rectification measure structure form proposed by the invention is simple, easily construction makes, at the same be submerged in below the water surface and
Pumping plant surrounding landscape is not influenced, is suitble in influent stream complicated condition Urban Waterlogging pump especially more demanding to pumping plant landscape impact
It is promoted the use of in project for construction and upgrading of standing.
Description of the drawings
Fig. 1 is the horizontal layout schematic diagram of the present invention；
Fig. 2 is the planar structure scale diagrams of the embodiment of the present invention；
Fig. 3 is the A-A section structure scale diagrams of Fig. 2；
Fig. 4 is unit intake pool admission section vertical mean velocity profile comparison diagram in pumping plant side before and after rectification of the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ 3, the present invention relates to forebay 1, joining section 2, joining section import 3, joining section outlet 4, intake pool 5,
Slope 6 separates the technical characteristics such as pier 7, diversion pier 8, baffle pier 9, crossbeam 10, aileron 11.
As shown in Figure 1, 2, a kind of method for improving Urban Waterlogging pumping plant side unit Inlet flow pattern, pumping plant import are joining section
2, the import of joining section 2 communicates with extraneous waters, exports and is connected with Forebay of Pumping Station 1, and joining section 2 is arc-shaped receipts along main flow direction
Contracting section, joining section export 4 width be B, 3 width of import for W and meet W=（1.2~2）B, 1 length of Forebay of Pumping Station is L, width is
Equal with the width of joining section outlet 4, it is H that forebay 1, which runs the depth of water, there is a slope 6 before intake pool 5, top of the slope and 1 import of forebay away from
From C=（0~0.2）L, the import of forebay 1 are joining section outlet 4, slope angle β=10 ° ~ 15 °, and 5 width of intake pool is D, pumping plant both sides
7 width B1 of side machine set isolation pier=（0.15~0.2）D sets combined type rectification measure, institute before the intake pool of pumping plant two sides unit
Combined type rectification measure is stated to be made of diversion pier 8, baffle pier 9 and crossbeam 10；
As shown in Fig. 2, 8 quantity N1=2 of diversion pier, respectively before two separation piers 7 of pumping plant two sides unit, water conservancy diversion
8 input end cavetto of pier, the port of export are connected with separating 7 head of pier, and 8 length L1 of diversion pier=（0.6~0.9）L, width B2 are with separating pier
7 width are equal, and the top of diversion pier 8 and water surface distance H1=（0.05~0.1）H；
As shown in figure 3, quantity N2=2 of the baffle pier 9, respectively on the center line of two sides unit, the length of baffle pier 9
Degree L2=（0.4~0.5）The input end distance L3 of L and its input end and diversion pier 8=（0.4~0.5）L, the width B3 of baffle pier 9=
（0.05~0.1）D, the both ends cavetto of baffle pier 9 and its top are flushed with the top of diversion pier 8；
As shown in figure 3, the crossbeam 10 is evenly arranged and its both ends and 11 phase of diversion pier 8 and pumping plant aileron along the vertical of baffle pier
Even, quantity N3=2 ~ 4 of crossbeam 10, width B4=（0.05~0.1）D, height H2=（0.1~0.15）H, adjacent two crossbeams spacing H3=
（0.05~0.12）H, the top of top side crossbeam are flushed with the top of baffle pier 9, the distance of crossbeam 10 and 9 input end of baffle pier
L4=（0.1~0.2）L.
Diversion pier 8 described above, baffle pier 9 and crossbeam 10 are metal structure or reinforced concrete structure, can promoted
Pump station engineering construction or transformation scene are welded or pouring molding.
Embodiment 1
Urban Waterlogging pumping plant planar structure size and typical case of the present embodiment with combined type rectification measure proposed by the invention
Schematic cross-section is as shown in Figure 2,3.
Pumping plant import joining section 2 along main flow direction be arc-shaped contraction section, 2 exit width B=70m of joining section, entrance width
W=1.5B=105m, 1 length L=25m of Forebay of Pumping Station, width are equal with the width of joining section outlet 4, and Forebay of Pumping Station 1 runs water
Deep H=9m, 6 top of the slope of slope and 1 import distance C=0m of forebay, 6 slope angle β=10 ° of slope, 5 width Ds of pumping plant intake pool=8m, pumping plant two
7 width B1=0.15D of side machine set isolation pier=1.2m, 8 quantity N1=2 of diversion pier, length L1=0.6L=15m, width B2=B1=
1.2m, 8 top of diversion pier and water surface distance H1=0.05H=0.45m, 9 quantity N2=2 of baffle pier, 9 input end of baffle pier and water conservancy diversion
8 input end distance L3=0.4L of pier=10m, 9 length L2=0.4L of baffle pier=10m, width B3=0.05D=0.4m, 10 quantity of crossbeam
N3=2, width B4=0.075D=0.6m, the height H2=0.111H=1m of crossbeam 10, adjacent two crossbeams spacing H3=0.12H=
1.08m, crossbeam 10 and 9 input end spacing L4=0.12L of baffle pier=3m；Diversion pier 8, baffle pier 9 and crossbeam 10 use reinforcing bar
Concrete for making.
Embodiment 2
Combined type rectification measure described in the present embodiment, difference from Example 1 are：3 width W=2B of joining section import=
140m, 6 top of the slope of slope and 1 import distance C=0.2L of forebay=5m, oblique 6 slope angle β=15 ° in slope, pumping plant two sides machine set isolation pier 7 are wide
Spend B1=0.2D=1.6m, 8 length L1=0.9L of diversion pier=22.5m, width B2=B1=1.6m, 8 top of diversion pier and water surface distance
H1=0.1H=0.9m, 9 input end of baffle pier and 8 input end distance L3=0.5L of diversion pier=12.5m, 9 length L2=0.5L of baffle pier
=12.5m, width B3=0.1D=0.8m, 10 quantity N3=4 of crossbeam, width B4=0.1D=0.8m, height H2=0.1H=0.9m are adjacent
Two crossbeam spacing H3=0.05H=0.45m, crossbeam 10 and 9 input end spacing L4=0.2L of baffle pier=5m；Diversion pier 8, baffle pier 9
And crossbeam 10 is made of metal material.
Embodiment 3
Combined type rectification measure described in the present embodiment, with Examples 1 and 2 the difference lies in：
3 width W=1.2B of joining section import=84m, 6 top of the slope of slope and 1 import distance C=0.08L of forebay=2m, 6 slope angle β of slope=
12 °, pumping plant two sides machine set isolation pier width B1=0.1875D=1.5m, length L1=0.8L=20m, the width B2 of diversion pier 8=
B1=1.5m, 8 top of diversion pier and water surface distance H1=0.0667H=0.6m, 9 input end of baffle pier and 8 input end distance of diversion pier
L3=0.44L=11m, 9 length L2=0.48L of baffle pier=12m, width B3=0.075D=0.6m, 10 quantity N3=3 of crossbeam, width B4
=0.05D=0.4m, height H2=0.15H=1.35m, adjacent two crossbeams spacing H3=0.0889H=0.8m, crossbeam 10 and baffle pier 9
Input end spacing L4=0.1L=2.5m.
As shown in figure 4, using Three Dimensional Flow Simulation method, comparative analysis uses the combination of the above embodiment of the present invention
Formula rectification measure carries out the forward and backward vertical mean velocity profile situation of side unit intake pool admission section of rectification.It can be sent out according to Fig. 4
Existing, for initial scheme, that is, when rectification measure progress rectification of the present invention is not used, side unit intake pool admission section is vertical
Mean velocity profile is significantly uneven；And the velocity flow profile of the side unit intake pool import after rectification of the present invention becomes more
It is even, it was demonstrated that combined type rectification measure proposed by the invention can significantly improve the Inlet flow pattern of pumping plant side unit water pump, so as to
Help to ensure safe efficient, the stable operation of pumping plant particularly side unit.
Embodiment of the present invention is described in detail above in association with attached drawing, but the present invention is not limited to described implementation
Mode.For those of ordinary skill in the art, in the range of the principle of the present invention and technological thought, to these embodiment party
Formula carries out a variety of variations, modification, replacement and deformation and still falls in protection scope of the present invention.
Claims (5)
1. a kind of method for improving Urban Waterlogging pumping plant side unit Inlet flow pattern, the drainage pumping stations include forebay, the length of forebay
It spends for L, width B, the forebay operation depth of water is H, and the outlet end of forebay is provided with multiple separation piers, between adjacent separation pier
Intake pool is formed, intake pool width is D, and two intake pools on the outermost side are side unit intake pool, form the water inlet of side unit
The separation pier in pond is side machine set isolation pier, it is characterized in that：
Side machine set isolation pier width B1=（0.15~0.2）D sets combined type fairing before two side unit intake pools；Forebay
Input end along forebay aileron set joining section, joining section along main flow direction be arc-shaped contraction section, joining section exit width
For B, joining section entrance width for W and meet W=（1.2~2）B；One is set in forebay along the inclined slope of main flow direction, slope
Top of the slope and forebay import distance C=（0~0.2）L, slope angle β=10 ° ~ 15 °；
The combined type fairing includes diversion pier, baffle pier and crossbeam；
Quantity N1=2 of the diversion pier, respectively before the machine set isolation pier of side, diversion pier input end cavetto, the port of export and side machine
Set isolation pier nose portion is connected, and the length L1 of diversion pier=（0.6~0.9）L, width B2 are equal with side machine set isolation pier width, water conservancy diversion
The top of pier and water surface distance H1=（0.05~0.1）H；
Quantity N2=2 of the baffle pier, respectively on the center line of two side units, the length L2 of baffle pier=（0.4~
0.5）The input end distance L3 of L and its input end and diversion pier=（0.4~0.5）L, the width B3 of baffle pier=（0.05~0.1）D,
The both ends cavetto of baffle pier and its top with being flushed at the top of diversion pier；
The crossbeam is evenly arranged along the vertical of baffle pier, and aileron of the crossbeam both ends respectively with diversion pier and forebay is connected, horizontal
Quantity N3=2 ~ 4 of beam, beam width B4=（0.05~0.1）D, height H2=（0.1~0.15）H, adjacent two crossbeams spacing H3=
（0.05~0.12）H is flushed at the top of the top of the crossbeam of upside and baffle pier, the distance of crossbeam and baffle pier input end
L4=（0.1~0.2）L.
2. the method for Urban Waterlogging pumping plant side unit Inlet flow pattern is improved as described in claim 1, it is characterized in that：The water conservancy diversion
Pier, baffle pier and crossbeam are metal structure or reinforced concrete structure.
3. the method for Urban Waterlogging pumping plant side unit Inlet flow pattern is improved as described in claim 1, it is characterized in that：Joining section goes out
Mouth width degree B is 70m, and joining section entrance width W is 105m, and Forebay of Pumping Station length L is 25m, Forebay of Pumping Station operation depth of water H is 9m,
Forebay of Pumping Station slope top of the slope and forebay import distance C are 0m, and slope angle β is 10 °, and intake pool width D is 8m, pumping plant two sides unit
It is 1.2m to separate pier width B1, and diversion pier quantity N1 is 2, and the length L1 of diversion pier is 15m, width B2 is 1.2m, water conservancy diversion pier top
Portion is 0.45m with water surface distance H1, and baffle pier quantity N2 is 2, and baffle pier input end is 10m with diversion pier input end distance L3,
Baffle pier length L2 is 10m, width B3 is 0.4m, and crossbeam quantity N3 is 2, and beam width B4 is 0.6m, height H2 is 1m, adjacent
Two crossbeam spacing H3 are 1.08m, and crossbeam is 3m with baffle pier input end spacing L4.
4. the method for Urban Waterlogging pumping plant side unit Inlet flow pattern is improved as described in claim 1, it is characterized in that：Joining section goes out
Mouth width degree B is 70m, and joining section entrance width W is 140m, and Forebay of Pumping Station length L is 25m, and Forebay of Pumping Station operation depth of water H is 9m,
Forebay of Pumping Station slope top of the slope and forebay import distance C are 5m, and slope angle β is 15 °, and intake pool width D is 8m, pumping plant two sides unit
It is 1.6m to separate pier width B1, and diversion pier quantity N1 is 2, and diversion pier length L1 is 22.5m, width B2 is 1.6m, water conservancy diversion pier top
Portion is 0.9m with water surface distance H1, and baffle pier quantity N2 is 2, and baffle pier input end is 12.5m with diversion pier input end distance L3,
Baffle pier length L2 is 12.5m, width B3 is 0.8m, and crossbeam quantity N3 is 4, and beam width B4 is 0.8m, height H2 is 0.9m,
Adjacent two crossbeams spacing H3 is 0.45m, and crossbeam is 5m with baffle pier input end spacing L4.
5. the method for Urban Waterlogging pumping plant side unit Inlet flow pattern is improved as described in claim 1, it is characterized in that：Joining section goes out
Mouth width degree B is 70m, and joining section entrance width W is 84m, and Forebay of Pumping Station length L is 25m, and Forebay of Pumping Station runs depth of water H as 9m, pump
Forebay slope top of the slope of standing and forebay import distance C are 2m, and slope angle β is 12 °, and intake pool width D is 8m, pumping plant two sides machine component
Dividing pier width B1 is 1.5m, and diversion pier quantity N1 is 2, and the length L1 of diversion pier is 20m, width B2 is 1.5m, at the top of diversion pier
It is 0.6m with water surface distance H1, baffle pier quantity N2 is 2, and baffle pier input end is 11m with diversion pier input end distance L3, is shunted
Pier length L2 is 12m, width B3 is 0.6m, and crossbeam quantity N3 is 3, and beam width B4 is 0.4m, height H2 is 1.35m, adjacent
Two crossbeam spacing H3 are 0.8m, and crossbeam is 2.5m with baffle pier input end spacing L4.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952648A (en) * | 2019-12-09 | 2020-04-03 | 扬州大学 | Structure and method for regulating and controlling diffusion flow of front pool of pump station |
| CN114032798A (en) * | 2021-09-26 | 2022-02-11 | 河海大学 | Method for guaranteeing even outflow of multi-hole diffusion divided-flow water tank culvert of urban drainage pumping station |
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| CN114032798A (en) * | 2021-09-26 | 2022-02-11 | 河海大学 | Method for guaranteeing even outflow of multi-hole diffusion divided-flow water tank culvert of urban drainage pumping station |
| CN114032798B (en) * | 2021-09-26 | 2022-07-29 | 河海大学 | Method for ensuring even outflow of water tank culvert for distributing and distributing porous water in urban drainage pumping station |
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