CN208151985U - Sluice " L " type trash rack pier and its " zigzag " arragement construction - Google Patents
Sluice " L " type trash rack pier and its " zigzag " arragement construction Download PDFInfo
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- CN208151985U CN208151985U CN201820514923.2U CN201820514923U CN208151985U CN 208151985 U CN208151985 U CN 208151985U CN 201820514923 U CN201820514923 U CN 201820514923U CN 208151985 U CN208151985 U CN 208151985U
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Abstract
The utility model discloses sluice " L " type trash rack pier and its " zigzag " arragement construction,Belong to water conservancy gate dam facility water conservancy diversion sewage blocking device technical field," L " type trash rack pier is made of two pieces of cuboid grid piers with round or oval pier nose,Two pieces of grid piers are combined into " L " type trash rack pier that angle is 90 ° ~ 150 °,The gate hole formed among adjacent " L " the type trash rack pier arranges trash rack,The adjacent gate hole center line line angle is 90 ° ~ 150 °," L " type trash rack pier is utilized to form the structural system of a conduct water flow,The trash rack region for being arranged in bend concave bank when sluice flood discharge is avoided to generate concentrated flow,Spread water flow sufficiently,Improve the bad fluidised form for being arranged in the powerplant intakes region of river bend concave bank main flow area,It solves the problems, such as to influence sluice flood passage aerial drainage safety because of the choked flow hammed water of Power Plant and trash rack for water inlet.
Description
Technical field
The utility model belongs to water conservancy gate dam facility water conservancy diversion sewage blocking device technical field, and in particular to sluice " L " type blocks dirt
Grid pier and its " zigzag " arragement construction.
Background technique
Water inlet building is a component part of hydraulic and hydroelectric engineering, the selection of water inlet position and pattern and entire
Multi-purpose project general layout is in close relations, only considers together with entire multi-purpose project general layout, passes through scheme comparison, ability
Under the premise of multi-purpose project general layout is optimal, suitable water inlet arrangement is determined, for there is sand prevention, antifouling, anti-icing
It is required that water inlet, it is also necessary to carry out " three proofings " problem.Water inlet is fetched water by approach channel, will cause head loss, and bring work
The increase of journey amount, if not hinge general layout requires, the arrangement that preferred should directly intake.It needs when certain using approach channel
When water inlet, it on the one hand should pay attention to channel and forebay arrangement, improve flow condition, it is ensured that the influent stream ability of approach channel；On the other hand it answers
It ensures that approach channel fluidised form is steady, especially for using complicated condition changeable, has both the multiple benefits such as water supply, irrigation, flood control, power generation
Comprehensive gate dam type water-control project, powerplant intakes approach channel should be comprehensively considered and arrange influence to entire hinge, no
It can be because the arrangement of approach channel leads to undesirable fluidised form, and then the influence normal flood discharge of sluice.
Currently, from the point of view of existing related Regulations, to the research master of powerplant intakes forebay, approach channel and trash rack
Water when concentrating on that powerplant intakes structure arrangement or trash rack pattern are discussed to infall clockwise slope, Swirl intensity retention and mistake grid
The influence of head loss, flow induced vibration etc..And the main structures for having both the sophisticated functions such as water blocking, sluicing, diversion,
While meeting powerplant intakes influent stream requirement, influence of the water inlet approach channel construction and arrangement scheme to hinge aerial drainage is analyzed, and
By optimization water inlet horizontal layout and trash rack structural style, improve sluice gate aerial drainage fluidised form and flood carrying capacity.
Before usual trash rack is located at water inlet, major function is to intercept power station（Pumping plant）It is equal water inlets rubbish, dirt, miscellaneous
Object avoids rubbish from entering generating set, damages unit and electrical equipment.Trash rack arrangement in power station generally has 2 kinds of modes：One is
Built-in, trash rack is just arranged in Power Plant front, and grid pier belongs to a part of workshop, and trash rack generally sets an inclination angle,
It is followed by unit maintenance gate；Another kind is external, and trash rack is arranged in power station inlet channel mouth, leave workshop have it is certain away from
From, grid pier is independently of the concrete structure of workshop, be not in contact with workshop concrete structure, trash rack bottom sill with block in conjunction with sand bank design,
To reduce construction investment.This external trash rack can expand trash rack area, reduced grid current speed, and reduced head loss, and protected
Output of power station is demonstrate,proved, preferable rubbish of eliminating is to the adverse effect of generating set.Trash rack is generally positioned to be linear in the plane
Perhaps it can be then arranged on facing directly in the fold-line-shaped of semicircle upright or inclined.
Utility model content
（1）Technical problems to be solved
The utility model overcomes great Hong to improve the bad flood discharge fluidised form before gate dam type engineering powerplant intakes approach channel
The horizontal layout of powerplant intakes approach channel and the choked flow hammed water of trash rack structural style when water and lead to sluice upstream flood discharge fluidised form
Disorder influences the shortcomings that sluice flood carrying capacity, and in order to solve the above technical problems, the utility model provides sluice " L " type trash rack
Pier and its " zigzag " arragement construction, novel " L " the type trash rack pier and its " zigzag " arragement construction can effective conduct water
Stream, improves the multi-purpose project powerplant intakes trash rack region flood discharge fluidised form, solves right bank workshop and trash rack for water inlet knot
Structure choked flow hammed water influences the problem of sluice aerial drainage fluidised form and flood carrying capacity.
（2）Technical solution
In order to solve the above-mentioned technical problem, the utility model provides sluice " L " type trash rack pier, " L " the type trash rack
Pier（1）By the first grid pier of two cuboids（A）With second gate pier（B）It constitutes, the first grid pier（A）With the second gate
Pier（B）It is combined into " L " type trash rack pier that angle is 90 ° ~ 150 °（1）, the first grid pier（A）Length（101）And width（102）
Length ratio is 3 ~ 15：1, the first grid pier（A）Length（101）And height（103）Length ratio is 1：0.2~3；Described second
Grid pier（B）Length（104）And width（105）Length ratio is 3 ~ 15：1, the second gate pier（B）Length（104）And height（106）It is long
The ratio between degree is 1：0.2~3；The first grid pier（A）It is long（101）With second gate pier（B）It is long（104）Length ratio be 1:0.2~
5。
Further, the first grid pier（A）A length of 5.70 meters, width be 1.20 meters, a height of 11 meters, the second gate pier
（B）A length of 5.70 meters, width be 1.20 meters, a height of 11 meters.
Sluice " zigzag " arragement construction, the structure are constituted using sluice " L " type trash rack pier, the sluice " zigzag "
Arragement construction, which refers to, is arranged vertically on the bottom, adjacent " L " the type trash rack pier（1）Wide wall surface be parallel to each other, it is adjacent
" L " the type trash rack pier（1）The gate hole that centre is formed arranges trash rack（2）, the adjacent gate hole center line line angle is
90 ° ~ 150 °, each gate hole center line line is in " zigzag " in entire plane.
Further, sluice " zigzag " arragement construction is by 3 ~ 30 " L " type trash rack piers（1）It is arranged vertically on
The bottom, left bank is streamlined leads wall for the connection of described sluice " zigzag " arragement construction one end（3）, the then whole sluice " sawtooth
Shape " arragement construction is folded to bank with 20 ° ~ 45° angle, and sluice " zigzag " the arragement construction other end is connect with right bank slope.
Further, sluice " zigzag " arragement construction is by 10 " L " type trash rack piers（1）It is arranged vertically on water
Bottom, preferably 35 °, 36 °, 37 °, 38 °, 39 ° of sluice " zigzag " arragement construction or 40 ° of angles are folded to bank angle and are folded to bank.
（3）Beneficial effect
The beneficial effects of the utility model：By the arragement construction of sluice " L " type trash rack pier and sluice " zigzag ", i.e.,
It is 90 ° ~ 150 ° by angle is arranged in each gate hole plane of trash rack, " L " type trash rack pier is utilized to form a conduct water flow
Structural system avoids the generation concentrated flow for being arranged in the trash rack region of bend concave bank main flow area when flood discharge, keeps water flow abundant
Diffusion improves the bad fluidised form for being arranged in the powerplant intakes region in channel thread area, solves because of Power Plant and water inlet
The choked flow hammed water of mouthful trash rack and the problem for influencing sluice flood passage aerial drainage safety.
Detailed description of the invention
Fig. 1 is the top view of sluice " L " type trash rack pier and its " zigzag " arragement construction；
Fig. 2 is the structural schematic diagram of single trash rack pier.
Specific embodiment
The technical scheme in the embodiment of the utility model is further clearly and completely retouched below with reference to embodiment
It states, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Embodiment one
Such as Fig. 2, the present embodiment provides sluice " L " type trash rack pier, " L " the type trash rack pier（1）By two cuboids
The first grid pier of shape（A）With second gate pier（B）It constitutes, the first grid pier（A）With the second gate pier（B）Being combined into angle is
90 ° ~ 150 ° of " L " type trash rack pier（1）, the first grid pier（A）A length of 5.70 meters, width be 1.20 meters, a height of 11 meters, institute
State second gate pier（B）A length of 5.70 meters, width be 1.20 meters, a height of 11 meters.
Sluice " zigzag " arragement construction, the structure are constituted using sluice " L " type trash rack pier, the sluice " zigzag "
Arragement construction, which refers to, is arranged vertically on the bottom, adjacent " L " the type trash rack pier（1）Wide wall surface be parallel to each other, it is adjacent
" L " the type trash rack pier（1）The gate hole that centre is formed arranges trash rack（2）, the adjacent gate hole center line line angle is
90 ° ~ 150 °, each gate hole center line line is in " zigzag " in entire plane.
In order to form complete sluice " zigzag " trash rack pier arragement construction, sluice " zigzag " arragement construction is
By 3 ~ 30 " L " type trash rack piers（1）It is arranged vertically on the bottom, sluice " zigzag " arragement construction one end connection left bank stream
Line style leads wall（3）, then whole sluice " zigzag " arragement construction is folded to bank, the sluice " sawtooth with 20 ° ~ 45° angle
Shape " the arragement construction other end is connect with right bank slope.Further, sluice " zigzag " arragement construction is by 10 " L " types
Trash rack pier（1）It is arranged vertically on the bottom, sluice " zigzag " arragement construction is folded to bank angle with 36 ° of angles and is folded to bank.
Sluice " L " type trash rack pier and sluice " zigzag " arragement construction Layout are as shown in Figure 1, trash rack is flat
It is arranged on face in " zigzag ", one end passes through streamlined wall of leading and connect with pier on the right of sluice gate, after upstream extending 46.5m, with
36 ° are folded to bank, are 90 ° of arrangements according to adjacent gate centerline hole angle, upstream right bank extends 10 holes, finally and right bank slope
Connection, trash rack pier long 5.70m, wide 1.20m, gate hole clear span 6m, high 11.00m.It leads wall, trash rack and blocks sand bank overall length
146.60m.Experiments have shown that：Under the Novel trash rack pier structure and arrangement, when water flow passes through trash rack region, leaned on from upstream
For first gate hole of right bank to downstream and the last one the lock hole for leading wall, water flow is in the distributional pattern of " one-in-and-one-out ", is spread good
Good, trash rack hole when avoiding flood discharge close to sluice, which is concentrated out, flows, and preferably weakens Right Bank Hydropower Station workshop and water inlet blocks
The choked flow hammed water of dirty grid improves the unsmooth problem of aerial drainage caused by right bank workshop area hammed water, to preferably reduce power station water inlet
Water-head inside and outside mouth trash rack, more conventional trash rack arrangement can reduce water-head up to 2.42m, preferably reduce close
The gate hole of sluice, which goes out, flows flow velocity, and more former scheme goes out to flow flow velocity close to the gate hole of sluice and reduces up to 52%, significantly reduces trash rack resistance
Flow hammed water to the adverse effect of sluice flood discharge, 6# lock hole under the arrangement（4）Other 5 lock hole mean flow raties of lockage velocity ratio
Small 1.37m/s, and 6# lock hole under former arrangement（4）Other 5 lock hole small 4.09m/s of mean flow rate of lockage velocity ratio.In short,
The Novel trash rack structure and the effective conduct water flow of Layout energy, improve the multi-purpose project powerplant intakes trash rack
Flood discharge fluidised form in region avoids right bank workshop and trash rack for water inlet structure choked flow hammed water from influencing sluice aerial drainage fluidised form and flood discharge energy
Power.
Preferred embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, several deformations can also be made, improves and substitutes, this
Belong to the protection scope of the utility model.Therefore, the protection scope of the utility model patent should be with appended claims
It is quasi-.
Claims (5)
- Sluice 1. " L " type trash rack pier, it is characterised in that：" L " the type trash rack pier（1）By the first grid of two cuboids Pier（A）With second gate pier（B）It constitutes, the first grid pier（A）With the second gate pier（B）Being combined into angle is 90 ° ~ 150 ° " L " type trash rack pier（1）, the first grid pier（A）Length（101）And width（102）Length ratio is 3 ~ 15：1, the first grid Pier（A）Length（101）And height（103）Length ratio is 1：0.2~3；The second gate pier（B）Length（104）And width（105）It is long The ratio between degree is 3 ~ 15：1, the second gate pier（B）Length（104）And height（106）Length ratio is 1：0.2~3；The first grid Pier（A）It is long（101）With second gate pier（B）It is long（104）Length ratio be 1:0.2~5.
- 2. sluice " L " type trash rack pier according to claim 1, it is characterised in that：The first grid pier（A）It is a length of 5.70 meters, width be 1.20 meters, a height of 11 meters, the second gate pier（B）A length of 5.70 meters, width be 1.20 meters, a height of 11 meters.
- Sluice 3. " zigzag " arragement construction, which is constituted using sluice " L " type trash rack pier described in claim 1, It is characterized in that：" zigzag " arragement construction, which refers to, is arranged vertically on the bottom, adjacent " L " the type trash rack pier（1）'s Wide wall surface is parallel to each other, adjacent " L " the type trash rack pier（1）The gate hole that centre is formed arranges trash rack（2）, adjacent described Gate hole center line line angle is 90 ° ~ 150 °, and each gate hole center line line is in " zigzag " in entire plane.
- 4. sluice " zigzag " arragement construction according to claim 3, it is characterised in that：" zigzag " arragement construction It is by 3 ~ 30 " L " type trash rack piers（1）It is arranged vertically on the bottom, described " zigzag " arragement construction one end connects left bank streamline Type leads wall（3）, then " zigzag " arragement construction described in entirety is folded to bank, " zigzag " arrangement knot with 20 ° ~ 45° angle The structure other end is connect with right bank slope.
- 5. sluice " zigzag " arragement construction according to claim 4, it is characterised in that：" zigzag " arragement construction By 10 " L " type trash rack piers（1）It is arranged vertically on the bottom, " zigzag " arragement construction is folded to bank with 36 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820514923.2U CN208151985U (en) | 2018-04-12 | 2018-04-12 | Sluice " L " type trash rack pier and its " zigzag " arragement construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820514923.2U CN208151985U (en) | 2018-04-12 | 2018-04-12 | Sluice " L " type trash rack pier and its " zigzag " arragement construction |
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| Publication Number | Publication Date |
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| CN208151985U true CN208151985U (en) | 2018-11-27 |
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| CN201820514923.2U Active CN208151985U (en) | 2018-04-12 | 2018-04-12 | Sluice " L " type trash rack pier and its " zigzag " arragement construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360472A (en) * | 2018-04-12 | 2018-08-03 | 福建省水利水电勘测设计研究院 | Sluice " L " type trash rack pier and its " zigzag " arrangement |
-
2018
- 2018-04-12 CN CN201820514923.2U patent/CN208151985U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360472A (en) * | 2018-04-12 | 2018-08-03 | 福建省水利水电勘测设计研究院 | Sluice " L " type trash rack pier and its " zigzag " arrangement |
| CN108360472B (en) * | 2018-04-12 | 2024-03-22 | 福建省水利水电勘测设计研究院有限公司 | Sluice "L" trash rack mound and "zigzag" arrangement structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.158, Dongda Road, Fuzhou, Fujian 350000 Patentee after: Fujian Water Resources and Hydropower Survey, design and Research Institute Co.,Ltd. Address before: 350000 No. 158, Dongda Road, Fuzhou, Fujian Patentee before: FUJIAN PROVINCIAL INVESTIGATION DESIGN & Research Institute OF WATER CONSERVANCY AND HYDROPOWER |
|
| CP03 | Change of name, title or address |