CN103806425A - Dispersed water delivery system for high-water-head ship lock - Google Patents
Dispersed water delivery system for high-water-head ship lock Download PDFInfo
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- CN103806425A CN103806425A CN201410089973.7A CN201410089973A CN103806425A CN 103806425 A CN103806425 A CN 103806425A CN 201410089973 A CN201410089973 A CN 201410089973A CN 103806425 A CN103806425 A CN 103806425A
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Abstract
The invention provides a dispersed water delivery system for a high-water-head ship lock. The dispersed water delivery system comprises a ship lock chamber, a main water delivery channel, a plurality of flow dividing holes, a branch water delivery channel, a stilling pool, a plurality of water outlet holes and energy dissipation cover plates, wherein the flow dividing holes which are communicated to the stilling pool are formed in the side wall of the branch water delivery channel; a stilling pier and a stilling beam are arranged in the stilling pool; the water outlet holes which are communicated to the ship lock chamber are formed in the top of the stilling pool; each energy dissipation cover plate is arranged on the upper part of the corresponding water outlet hole. According to the water delivery system, two sets of energy dissipation systems, namely the internal stilling pool and the external energy dissipation cover plates are arranged in an outlet area in the ship lock chamber. Compared with a series of existing dispersed water delivery system patterns, the dispersed water delivery system provided by the invention has the advantages that the energy of a water body in the ship lock chamber can be greatly dissipated, so that the berthing conditions of a ship in the ship lock chamber are improved, the water delivery system patterns are further simplified, and an operation water head of the ship lock is raised.
Description
Technical field
The present invention relates to subdue in hydraulic engineering the technical field of flow energy in navigation lock lock chamber, specifically a kind of high-lift lock dispersed delivery system.
Background technology
Ship lock is arranged on navigable river and helps ship to overcome the navigation structure of the water-head causing because building a dam.Its principle is the water level lifting between water levels of upstream and downstream in the water-carriage system control lock chamber by being embedded in lock chamber both sides or bottom, complete lock chamber water-filling or sluicing process, ship in this process in lock chamber rises or declines with water level, reaches the object that overcomes water-head.
In lock filling process, high position, upstream water body enters lock chamber by water-carriage system, the potential energy part that water body has changes kinetic energy into and enters lock chamber, if it is excessive to enter water energy in lock chamber, or it is bad to dissipate, the water body of motion can produce excessive rolling and turbulent fluctuation, the lockage safety of ship berthing in harm lock chamber.
Along with improving constantly of Aided Locked Design head, the flow energy that enters lock chamber is also increasing, in order better to disperse to enter the flow energy of lock chamber, in lock chamber, water-carriage system becomes and becomes increasingly complex, become middle high-lift lock dispersed delivery system from low lift lock end filling and emptying system, because the current of distributing water-carriage system are to enter lock chamber in a big way, thereby compared with end filling and emptying system, the influence of dynamic water power (wave force, flow velocity power, local power) on boats and ships of acting on is all relatively little.
The dispersed delivery system that existing pattern is numerous, in its lock chamber, delivery port pattern is divided into two kinds, and a kind of weep hole is arranged in water outlet gallery sidewall, is called side water exit mouth; A kind of weep hole is arranged on water outlet gallery top board, is called top delivery port.The outlet current energy-dissipating installation of these two kinds of delivery port patterns is arranged in weep hole outer (seeing along water-filling current direction).Wherein side water exit mouth adopts open drain energy dissipating, so-called open drain is the open type absorption basin that top does not have cover plate, current are entered in lock chamber by weep hole, first in open drain, spread the energy-dissipating installation such as baffle pier and the power beam that the disappears collision arranging in the mutually violent blending of a large amount of whirlpools of generation and current and current and open drain by current and subdue portion of energy; And top delivery port adopts cover plate energy dissipation, cover plate is arranged on weep hole top, and current are entered in lock chamber by weep hole, first forms current by striking cover plate and disperses and generate whirlpool to subdue portion of energy.The water-carriage system lock chamber inner outlet pattern of present all employings, what all adopt is the external energy-dissipating installation of weep hole, water flows out after weep hole in outside energy dissipating.
The mechanism of open drain energy dissipating is, goes out aperture and enter the current in open drain, because sudden expansion generates the mutually violent blending friction energy dissipation of a large amount of whirlpools and current, current simultaneously also with open drain in the energy-dissipating installation collision such as baffle pier, the power that disappears bank eliminate portion of energy; The mechanism of cover plate energy dissipation is, water flows out current that sudden expansion after weep hole and energy dissipating cover plate stop that current form to be disperseed and generates whirlpool, the current elimination portion of energy of collide in cover plate cavity, rub.
In the situation that weep hole arranges that general layout is certain in lock chamber plane, outlet current effect of energy dissipation depends on open drain or cover plate pattern, simultaneously also relevant with the depth of immersion of open drain or cover plate.Because of the control of engineering quantity, the initial depth of immersion of open drain or cover plate can not be too large, and ship lock limited space, the limited space that open drain yardstick and cover plate are formed, make to export current energy dissipating limited, the indoor dump energy of energy dissipating back brake is still larger, shows as in lock chamber flow turbulence and water surface upheaval comparatively fierce, thereby makes boats and ships be subject to unbalanced flow turbulence and water level fluctuation power.Generally, can make mooring conditions of ship in lock chamber meet the demands by adjusting the water-delivery valve method of operation, weep hole layout pattern and open drain or cover plate build, but for high, the larger ship lock of head, only depend on above-mentioned measure to be difficult to meet the demands.
Dateng Gorge ship lock is the lift lock that head exceedes 40m, adopts the water-carriage system of four section eight branches gallery water outlet, and water passes through cover plate energy dissipation after flowing out weep hole.Primary Study shows that its water delivery maximum stream flow is at 1000m
3/ s left and right, exceedes Three Gorges Ship Lock 600m
3the maximum of/s is used flow, thereby the energy that enters lock chamber exceedes Three Gorges Ship Lock, and Primary Study finds that in its lock chamber, ship mooring force maximum value exceedes one times of code requirement, if water-carriage system weep hole layout pattern is modified, water-carriage system can be too complicated.Therefore need the relatively simple and good water-carriage system pattern of effect of energy dissipation of a kind of structure, this is great to high-lift lock design sense from now on.
Forefathers carried out the application study of interior energy dissipator in high-lift lock water-carriage system, but the interior energy dissipator pattern of research is arranged in water-carriage system import position, as vertical shaft type interior energy dissipator is arranged in after water-delivery valve section on water delivery Main Corridor road.Vertical shaft type interior energy dissipator is opened wide because of the water surface, and the current aeration problem producing when current fall in energy dissipating drilled shaft is difficult to resolve certainly (aerated flow enters lock chamber affects in lock chamber the boats and ships safety of berthing) and does not obtain and apply.
Summary of the invention
The invention provides a kind of high-lift lock dispersed delivery system, this system at water-carriage system lock chamber inner outlet region division inside and outside two cover energy-dissipating installations, can effectively subdue the flow energy that enters lock chamber, improve in lock chamber the boats and ships safety of berthing, thereby reach the object that improves Aided Locked Design head.
For realizing the object of the invention, adopt following technical scheme:
A kind of high-lift lock dispersed delivery system, comprise that lock chamber, water delivery Main Corridor road, diffluence pass, water delivery prop up gallery, absorption basin, weep hole, energy dissipating cover plate, the sidewall that gallery is propped up in water delivery is provided with multiple tap holes that enter absorption basin, in absorption basin, be provided with baffle pier, the power that disappears beam, absorption basin top is provided with multiple weep holes that enter in lock chamber, and each weep hole top is provided with energy dissipating cover plate.
Its interior energy dissipator of the present invention is arranged on water-carriage system lock chamber inner outlet region, after gallery is propped up in water delivery, before weep hole.Before entering lock chamber, current first enter a pent-roof absorption basin by the multiple tap holes that arrange on a gallery sidewall, in absorption basin, be provided with baffle pier and the power beam that disappears, current absorption basin in first consume portion of energy, the multiple weep holes that arrange from absorption basin top board again enter lock chamber, finally by consuming portion of energy with the energy dissipating cover plate collision of weep hole top setting again.The current that enter lock chamber because of the present invention are through inside and outside twice energy dissipating, and inner absorption basin is submerged in and evaded current aeration problem under water, therefore can effectively improve lock chamber mooring conditions of ship.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-lift lock dispersed delivery system of the present invention;
Fig. 2 is I-I section sectional drawing in Fig. 1;
Fig. 3 is II-II section sectional drawing in Fig. 1.
In figure: 1-lock chamber, 2-water delivery gallery, 3-diffluence pass, gallery is propped up in 4-water delivery, 5-absorption basin, 6-weep hole, 7-energy dissipating cover plate, 8-tap hole, 9-baffle pier, the 10-power that disappears beam.
The specific embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described.
Figure 1 shows that the structural representation of high-lift lock dispersed delivery system of the present invention, described system comprises that lock chamber 1, water delivery Main Corridor road 2, diffluence pass 3, water delivery prop up gallery 4, absorption basin 5, weep hole 6, energy dissipating cover plate 7.
Please further refer to Fig. 2 and Fig. 3, prop up gallery 4 sidewalls in water delivery and be provided with multiple interior dissipaters that enter---the tap hole 8 of absorption basin 5; In absorption basin 5, be provided with baffle pier 9, the auxiliary energy-dissipating installation such as the power that disappears beam 10, absorption basin 5 tops are provided with multiple weep holes 6 that enter in lock chamber 1, each weep hole 6 tops are provided with energy dissipating cover plate 7.
The present invention is arranged on water delivery and props up its supplementary devices such as the absorption basin 5 (seen along water-filling current direction) after gallery 4, before weep hole 6 and the baffle pier 9 of absorption basin 5 interior settings, the power that disappears beam 10 and form inner energy-dissipating installation; Being arranged on the energy dissipating cover plate 7 of (seeing along water-filling current direction) after weep hole 6 is outside energy-dissipating installation.
Mechanism of energy dissipation of the present invention: in the time of lock chamber 1 water-filling, the tap hole 8 that current prop up gallery 4 by water delivery Main Corridor road 2, diffluence pass 3, water delivery enters absorption basin 5, substantially, shunting uniform current through tap hole 8 enters after absorption basin 5, collision by auxiliary energy-dissipating installations such as current and baffle pier 9, the power that disappears beams 10, rotary roll and mutually blending are used for subduing energy, then the multiple weep holes 6 that arrange by absorption basin 5 tops enter in lock chamber 1, and the energy dissipating cover plate 7 that now weep hole 6 tops arrange carries out energy dissipating for the second time to current.
Case study on implementation
The present invention has carried out Primary Study on certain high-lift lock block mold, and research shows to adopt outlet system in the lock chamber with inner energy-dissipating installation, can effectively reduce ship mooring force in lock chamber.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any belong to those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (1)
1. a high-lift lock dispersed delivery system, it is characterized in that: comprise that lock chamber (1), water delivery Main Corridor road (2), diffluence pass (3), water delivery prop up gallery (4), absorption basin (5), weep hole (6), energy dissipating cover plate (7), the sidewall that gallery (4) is propped up in water delivery is provided with multiple tap holes (8) that enter absorption basin (5), in absorption basin (5), be provided with baffle pier (9), the power that disappears beam (10), absorption basin (5) top is provided with multiple weep holes (6) that enter in lock chamber (1), and each weep hole (6) top is provided with energy dissipating cover plate (7).
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| CN201410089973.7A CN103806425B (en) | 2014-03-12 | 2014-03-12 | A kind of high-lift lock dispersed delivery system |
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| CN201410089973.7A CN103806425B (en) | 2014-03-12 | 2014-03-12 | A kind of high-lift lock dispersed delivery system |
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| CN103806425B CN103806425B (en) | 2015-11-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908689A (en) * | 2016-04-18 | 2016-08-31 | 浙江省交通规划设计研究院 | A now ship lock water taking system based on double layer galleries in medium- and high-head obstructive ship lock reconstruction and extension projects |
| CN111896220A (en) * | 2020-07-09 | 2020-11-06 | 长江三峡通航管理局 | Ship lock hydraulics prototype observation method |
| CN112779900A (en) * | 2021-01-27 | 2021-05-11 | 杨锡安 | High-water-head navigation power generation ship lock |
| CN115017627A (en) * | 2022-08-10 | 2022-09-06 | 交通运输部天津水运工程科学研究所 | Stilling basin structure, water delivery system and local resistance coefficient estimation method |
| CN115324020A (en) * | 2022-08-22 | 2022-11-11 | 长江水利委员会长江科学院 | Ultrahigh-water-head ship lock self-balanced outflow water output system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908689A (en) * | 2016-04-18 | 2016-08-31 | 浙江省交通规划设计研究院 | A now ship lock water taking system based on double layer galleries in medium- and high-head obstructive ship lock reconstruction and extension projects |
| CN105908689B (en) * | 2016-04-18 | 2018-05-01 | 浙江省交通规划设计研究院 | A kind of middle high water head hinders new ship lock water intake system of the boat lock reconstruction and extension project based on double-deck gallery |
| CN111896220A (en) * | 2020-07-09 | 2020-11-06 | 长江三峡通航管理局 | Ship lock hydraulics prototype observation method |
| CN112779900A (en) * | 2021-01-27 | 2021-05-11 | 杨锡安 | High-water-head navigation power generation ship lock |
| CN115017627A (en) * | 2022-08-10 | 2022-09-06 | 交通运输部天津水运工程科学研究所 | Stilling basin structure, water delivery system and local resistance coefficient estimation method |
| CN115017627B (en) * | 2022-08-10 | 2022-10-21 | 交通运输部天津水运工程科学研究所 | Stilling basin structure, water delivery system and local resistance coefficient estimation method |
| CN115324020A (en) * | 2022-08-22 | 2022-11-11 | 长江水利委员会长江科学院 | Ultrahigh-water-head ship lock self-balanced outflow water output system |
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| CN103806425B (en) | 2015-11-18 |
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