CN103806425B - A kind of high-lift lock dispersed delivery system - Google Patents
A kind of high-lift lock dispersed delivery system Download PDFInfo
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- CN103806425B CN103806425B CN201410089973.7A CN201410089973A CN103806425B CN 103806425 B CN103806425 B CN 103806425B CN 201410089973 A CN201410089973 A CN 201410089973A CN 103806425 B CN103806425 B CN 103806425B
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Abstract
The invention provides a kind of high-lift lock dispersed delivery system, comprise 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 hole entering absorption basin, be provided with baffle pier in absorption basin, the power that disappears beam, absorption basin top is provided with multiple weep hole entered in lock chamber, and each weep hole top is provided with energy dissipating cover plate.This water-carriage system has two of inner absorption basin and outside energy dissipating cover plate and overlaps energy-dissipating system in its lock chamber inner outlet region, more existing a series of dispersed delivery system pattern more can be cut down and entered water energy in lock chamber, thus improve mooring conditions of ship in lock chamber, and then simplify water-carriage system pattern, improve ship gateway operation head.
Description
Technical field
The present invention relates in hydraulic engineering the technical field of cutting down 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 to help ship to overcome the navigation structure of the water-head caused because building a dam.Its principle is that the water level that the water-carriage system by being embedded in lock chamber both sides or bottom controls in lock chamber is elevated between water levels of upstream and downstream, complete lock chamber water-filling or sluicing process, ship in this process in lock chamber rises with water level or declines, and reaches the object overcoming water-head.
In lock filling process, high position, upstream water body enters lock chamber by water-carriage system, the potential energy portions turn that water body has is that kinetic energy enters lock chamber, if the water energy entered in lock chamber is excessive, or it is bad to dissipate, the water body then moved can produce excessive rolling and turbulent fluctuation, the lockage safety of ship berthed in harm lock chamber.
Along with improving constantly of Aided Locked Design head, the flow energy entering lock chamber is also increasing, in order to better dispersion enters the flow energy of lock chamber, in lock chamber, water-carriage system becomes and becomes increasingly complex, middle high-lift lock dispersed delivery system is become from low lift lock end filling and emptying system, current due to distributing water-carriage system enter lock chamber in a big way, thus, compared with end filling and emptying system, the hydrodynamic force (wave force, flow velocity power, local power) acted on boats and ships 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 stream 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 enter in lock chamber by weep hole, are first spread in open drain by current and generate baffle pier that a large amount of whirlpool and current arrange in violent blending and current and open drain mutually and to collide with the energy-dissipating installations such as power beam that disappear and cut down portion of energy; And top delivery port adopts cover plate energy dissipation, cover plate is arranged on weep hole top, and current enter in lock chamber by weep hole, first forms current dispersion by striking cover plate and generates whirlpool abatement 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, and namely water flows out after weep hole in outside energy dissipating.
The mechanism of open drain energy dissipating is, goes out the current that aperture enters open drain, and because sudden expansion generates the mutually violent blending friction energy dissipation of a large amount of whirlpools and current, current also collide with the energy-dissipating installation such as baffle pier, baffle wall style in open drain simultaneously and eliminate portion of energy; The mechanism of cover plate energy dissipation is, water flows out the sudden expansion after weep hole and energy dissipating cover plate stops the current dispersion that current are formed and generates whirlpool, and current collide in cover plate cavity, portion of energy is eliminated in friction.
When weep hole arranges that general layout is certain in lock chamber plane, outlet stream 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, make the limited space that open drain yardstick and cover plate are formed, make outlet stream energy dissipating limited, the dump energy of energy dissipating back brake indoor is still comparatively large, shows as flow turbulence and water surface upheaval in lock chamber comparatively fierce, thus makes boats and ships be subject to unbalanced flow turbulence and water level fluctuation power.Generally, mooring conditions of ship in lock chamber can be made to meet the demands by the adjustment water-delivery valve method of operation, weep hole layout pattern and open drain or cover plate build, but high for head, larger ship lock, be only difficult to meet the demands by above-mentioned measure.
Dateng Gorge ship lock is the lift lock of head more than 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
3about/s, exceedes Three Gorges Ship Lock 600m
3the maximum utilization flow of/s, the energy thus entering lock chamber exceedes Three Gorges Ship Lock, and Primary Study finds that in its lock chamber, ship mooring force maximum value exceedes code requirement one times, if modify to water-carriage system weep hole layout pattern, then water-carriage system can be too complicated.Therefore need a kind of structure relatively simple and the good water-carriage system pattern of effect of energy dissipation, 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 to be 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 produced when current fall in energy dissipating drilled shaft is comparatively difficult to resolve certainly (aerated flow enters lock chamber affects vessel berth safety in lock chamber) and do not obtain and apply.
Summary of the invention
The invention provides a kind of high-lift lock dispersed delivery system, this system is provided with inside and outside two cover energy-dissipating installations in water-carriage system lock chamber inner outlet region, can effectively cut down the flow energy entering lock chamber, improve vessel berth safety in lock chamber, thus reach the object improving 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 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 hole entering absorption basin, be provided with baffle pier in absorption basin, the power that disappears beam, absorption basin top is provided with multiple weep hole entered 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.Multiple tap holes first by a gallery sidewall is arranged before current enter lock chamber enter a pent-roof absorption basin, baffle pier is provided with and the power beam that disappears in absorption basin, current absorption basin in first consume portion of energy, the multiple weep holes arranged from absorption basin top board again enter lock chamber, collide consume portion of energy again finally by the energy dissipating cover plate arranged with weep hole top.Because the present invention enters the current of lock chamber through inside and outside twice energy dissipating, and inner absorption basin is submerged in and has 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-culvert, 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.
Detailed description of the invention
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 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 sidewall in water delivery and be provided with and multiplely enter interior dissipaters---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 top is provided with multiple weep hole 6 entered in lock chamber 1, and each weep hole 6 top is provided with energy dissipating cover plate 7.
The present invention be arranged on water delivery prop up gallery 4 after, its supplementary devices such as baffle pier 9, the power that disappears beam 10 that arranges in the absorption basin 5 (seen along water-filling current direction) before weep hole 6 and absorption basin 5 forms inner energy-dissipating installation; The energy dissipating cover plate 7 (seen along water-filling current direction) after being arranged on weep hole 6 is outside energy-dissipating installation.
Mechanism of energy dissipation of the present invention: when 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, shunt after uniform current enter absorption basin 5 through tap hole 8, by the collision of current and the auxiliary energy-dissipating installation such as baffle pier 9, the power that disappears beam 10, rotary roll and mutually blending be used for cutting down energy, then the multiple weep holes 6 arranged by absorption basin 5 top enter in lock chamber 1, and energy dissipating cover plate 7 pairs of current that now weep hole 6 top is arranged carry out second time energy dissipating.
Case study on implementation
The present invention has carried out Primary Study on certain high-lift lock block mold, research show adopt band inner energy-dissipating installation lock chamber in outlet system, ship mooring force in lock chamber can be effectively reduced.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly belongs to those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within 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 lock chamber (1), water delivery Main Corridor road (2), diffluence pass (3), gallery (4) is propped up in water delivery, 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 hole (8) entering absorption basin (5), baffle pier (9) is provided with in absorption basin (5), the power that disappears beam (10), absorption basin (5) top is provided with multiple weep hole (6) entered in lock chamber (1), each weep hole (6) top is provided with energy dissipating cover plate (7), see that described absorption basin (5) is arranged on after water delivery props up gallery (4) along water-filling current direction, weep hole (6) is front, after seeing that described energy dissipating cover plate (7) is arranged on weep hole (6) along water-filling current direction, enter the front multiple tap holes (8) that gallery (4) sidewall is arranged that first propped up by water delivery of lock chamber (1) at current and enter absorption basin (5), current first consume portion of energy by baffle pier (9) and the power beam (10) that disappears in absorption basin (5), the multiple weep holes (6) arranged from absorption basin (5) top board again enter lock chamber (1), collide finally by the energy dissipating cover plate (7) arranged with weep hole (6) top and consume portion of energy again.
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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 true CN103806425B (en) | 2015-11-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| CN115324020B (en) * | 2022-08-22 | 2023-06-06 | 长江水利委员会长江科学院 | Self-balancing outflow water delivery system of ultrahigh-head ship lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1042449C (en) * | 1994-03-07 | 1999-03-10 | 水利部交通部能源部南京水利科学研究院 | Centralized water flowing system of ship lock |
| CN1215113A (en) * | 1998-10-26 | 1999-04-28 | 余江 | Ultrahigh-water head lock |
| CA2629639C (en) * | 2008-04-23 | 2015-09-08 | Todd Mcbride | Fluid diversion conduit |
| CN101608444B (en) * | 2009-07-27 | 2011-05-04 | 中国水电顾问集团华东勘测设计研究院 | Water adding system of ship lock and construction method thereof |
| CN102359085A (en) * | 2011-07-28 | 2012-02-22 | 水利部交通运输部国家能源局南京水利科学研究院 | Engineering structure for improving water and sediment conditions of lock chamber of lock multi-section dispersive water conveyance system |
| CN103397624B (en) * | 2013-08-13 | 2015-02-11 | 重庆交通大学 | Inverted K-shaped energy dissipater of concentrated water conveyance system of ship lock and layout method thereof |
| CN203729286U (en) * | 2014-03-12 | 2014-07-23 | 长江水利委员会长江科学院 | Dispersed water delivery system for high-head lock |
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