CN101418555B - Hydraulic arrangement mode sediment ejection structure - Google Patents
Hydraulic arrangement mode sediment ejection structure Download PDFInfo
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- CN101418555B CN101418555B CN2008102305954A CN200810230595A CN101418555B CN 101418555 B CN101418555 B CN 101418555B CN 2008102305954 A CN2008102305954 A CN 2008102305954A CN 200810230595 A CN200810230595 A CN 200810230595A CN 101418555 B CN101418555 B CN 101418555B
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- sand discharging
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- desilting pipeline
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Abstract
The invention discloses a hydraulic arrangement type sand discharging structure, which comprises sand discharging pipelines, wherein the sand discharging pipelines are laid on the bottom parts of a reservoir, the tail ends of the sand discharging pipelines are connected with a bottom hole or a tunnel of a dam body and provided with gate valves to control the discharge rate; the head ends of the sand discharging pipelines are extended toward up stream, the end parts or proper parts of the sand discharging pipelines are provided with curved pipe segments tilted upward, and upper end openings of the curved pipe segments are higher than the expected sand silting face; and one side or/and two side pipe walls of the sand discharging pipes is/are provided with branch pipelines, the upper side pipe walls are provided with gate wells, and the inside of each gate well is provided with control valves. The number of sand discharging pipelines is more than two, and the sand discharging pipelines are laid on the reservoir bottoms on the bank side and in the middle of the reservoir respectively. The number of the gate wells is more than one, the gate wells are arranged on different positions on the upper side pipe wall of each sand discharging pipeline. In the mode of changing the position of a water inlet of a sand discharging hole of the reservoir, the structure utilizes the distributing type space difference generated in laying the sand discharging pipelines to achieve the aim of widening the range of sand discharging; moreover, the structure also has the advantages of unnecessary external energy, high sand discharging efficiency and good social and economic benefits.
Description
One, technical field:
The present invention relates to the husky structure of a kind of row, particularly relate to a kind of hydraulic arrangement mode sediment ejection structure, belong to the structure arranging method field in the Hydraulic and Hydro-Power Engineering field.
Two, background technology:
For the reservoir of building on fully-loaded stream, how arranging sand run time of high water level efficiently is a significant problem.The density current row of at present common dependence scheduling means is husky, hold methods such as arranging muddy, spacious Ku Lasha clearly all exists contradiction and weakness, and it is lower on the whole to arrange husky efficient, and its main cause is that the earial drainage arrangement of hinge is the same with the arrangement in clear water river; Even adopted the reservation bottom outlet to arrange husky arrangement, because of its water inlet is a flush arrangement, still the silt underwashing funnel is too little before the husky hole of existence row, can't realize that efficient row is husky.The problem that relies on modes such as jet impulse, underwater demolition, mechanical disturbance all to exist efficient and safety etc. to be difficult to overcome, inconvenience is carried out in a large number in the reservoir area.Therefore press for the real novel gaza method for designing of taking as the leading factor that is fit to the husky needs of fully-loaded stream key water control project row and solve this difficult problem with natural force.
Three, summary of the invention:
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provide the husky efficient height of a kind of row, simple in structure, control hydraulic arrangement mode sediment ejection structure easily.
The technical scheme that the present invention is taked for the technical solution problem is:
A kind of hydraulic arrangement mode sediment ejection structure, contain desilting pipeline, described desilting pipeline is laid on the bottom of the reservior, its tail end is connected with the bottom outlet or the tunnel of dam body, and gate valve is set, with the control flow, the head end of described desilting pipeline upstream extends, its end or appropriate location are provided with a tip-tilted bending tube section, the upper port of this bending tube section exceeds the silt alluvial face of expection, one side of described desilting pipeline is or/and the both sides tube wall is provided with lateral, and its upside tube wall is provided with gate shaft, is provided with control valve in the described gate shaft.
The quantity of described desilting pipeline is more than two, arranges for distributed import, is laid on respectively on the bottom of the reservior of bank and centre.
The quantity of described gate shaft is more than one, is arranged on the tube wall of desilting pipeline diverse location.
Positive beneficial effect of the present invention is:
1. hydraulic arrangement mode sediment ejection structure of the present invention, its primary features is distributed sand inlet design, desilting pipeline by a kind of extension type is formed, and this desilting pipeline is laid on the bottom of the reservior, and its tail end is connected with the bottom outlet or the tunnel of dam body, and gate valve is set, with the control flow, the head end of this desilting pipeline upstream extends, and its end or appropriate location are provided with a tip-tilted bending tube section, the upper port of this bending tube section exceeds the silt alluvial face of expection, as the clear water water inlet; One side of described desilting pipeline is or/and the both sides tube wall is provided with lateral.The husky structure of the row that this method for designing forms can make full use of distributed import advantage, utilize the reservoir high water head to remove near the silt aperture, the bigger sand discharge funnel of final formation, strengthen the sand surfing amount of short-term, increase effective storage, make intake tower " clear in front of the door ", eliminate the threat that operation brings to hinge of silt alluvial body, the husky purpose that concerns of outbound water is adjusted in the cavity combination of realization key water control project.
2, the present invention utilizes the husky theory of brand-new row, change present reservoir and arrange husky building flush arrangement general layout, the husky space of expansion row, reach and enlarge the husky scope of row, the husky relation of realization adjustment outbound water, be that husky purpose is transferred in water transfer, it mainly utilizes natural force (waterpower) sediment transport, and little, sediment transport efficient height consumes energy.
3, the head end of desilting pipeline of the present invention extends upward, and has enlarged the husky scope of row of former cavern, and forming more has big sand discharge funnel district, be convenient to wider silt and discharge, in addition, the sidewall of desilting pipeline is provided with lateral, enlarge the husky zone of transverse row, thereby arranged husky efficient height.
4, the upside tube wall of desilting pipeline of the present invention is provided with gate shaft, and gate shaft is provided with gate, can open different gates according to the difference at desilting position like this, so that different parts is carried out desilting, thereby remove alluvial body before the dam effectively and rationally, it is easy to operate, be convenient to control, uses very convenient.
5, desilting pipeline head end of the present invention or appropriate location are provided with tip-tilted bending tube section, and the upper port of this bending tube section exceeds the silt alluvial face of expection, can produce favourable flow field like this promotes row husky, and making clear water upwarp the mouth of pipe from this enters, prevent that integral body silts up, and when other mouthful door silts up by the negative pressure desilting of fresh water pipeline.
6, the present invention arranges husky efficient height.As calculated, model testing and with reference to pertinent literature, it arranges husky efficient can reach 400kg/m
3More than, be far superior to the present husky mode of row that only relies on the scheduling means merely.
7, running cost of the present invention is lower.Enlarged the husky scope of row in the husky hole of traditional row, forming more has big sand discharge funnel district.Mechanical relatively desilting mode is more economical, need not the external energy input, and running cost is low.
8, hydraulic arrangement mode sediment ejection structure of the present invention, for the reservoir of not building, can introduce the global design scheme to this structure in the design stage, build the husky structure of nonvolatil row simultaneously in the construction period of dam, the scale of structure and detailing are determined by the hydrology and the engineering geological conditions at engineering place.For the reservoir of building and not occurring as yet depositing before the serious dam, can adopt the mode that water level is laid in the shoal that reduces, must deep-water operation can the prefabricated units underwater mating.For the reservoir of severe siltation, can adopt segmentation Pipeline for pneumatically conveying materials scheme to carry out the laying of desilting pipeline, before removing the part dam behind the silt, Pipeline for pneumatically conveying materials is movably continued reservoir laying upstream, further remove dam far away silt.It is applied widely, and form of construction work is various, and is simple in structure, cost is lower, is easy to promote, and has good society and economic benefit.
Four, description of drawings:
Fig. 1 is the structural representation of hydraulic arrangement mode sediment ejection structure of the present invention;
Fig. 2 is the vertical view of hydraulic arrangement mode sediment ejection structure shown in Figure 1.
Five, the specific embodiment:
Embodiment: referring to Fig. 1 and Fig. 2, among the figure, the tail end of the desilting pipeline of hydraulic arrangement mode sediment ejection structure is connected with the bottom outlet or the tunnel 1 of dam body 9, and gate valve 4 is set, with the control flow, the head end of desilting pipeline upstream extends, and its end is provided with a tip-tilted bending tube section, and the upper port 10 of this bending tube section exceeds the silt alluvial face 5 of expection.
The quantity of desilting pipeline is two, and wherein a desilting pipeline 2 is laid on 8 bottoms of the reservior, bank, on another root desilting pipeline 7 is laid at the bottom of the middle database.And, on the side pipe wall of desilting pipeline 2 two laterals 3 being set, its upside tube wall is provided with two gate shafts 6, is provided with control valve in gate valve 6 wells; Two laterals 3 are set respectively on the both sides tube wall of desilting pipeline 7, and its upside tube wall is provided with two gate shafts 6, is provided with control valve in gate 6 wells.Can open in the different gate valve wells 6 gate so that different parts is carried out desilting, it is easy to operate, be convenient to control thereby remove before the dam alluvial body effectively and rationally, uses very convenient.
The present invention makes full use of the reservoir high water head and removes dam far away silt, form bigger sand discharge funnel, strengthen the sand surfing amount of short-term, increase effective storage, make intake tower " clear in front of the door ", eliminate the threat that operation brings to hinge of silt alluvial body, the realization key water control project is adjusted the purpose of the husky relation of outbound water.
For the reservoir of not building, can arrange husky structure to this in the design stage and introduce the global design scheme, build the husky structure of nonvolatil row simultaneously in the construction period of dam.The scale of structure and detailing are determined by the hydrology and the engineering geological conditions at engineering place.For the reservoir of building and not occurring as yet depositing before the serious dam, can adopt the mode that water level is laid in the shoal that reduces, must deep-water operation can the prefabricated units underwater mating.For the reservoir of severe siltation, can adopt segmentation Pipeline for pneumatically conveying materials scheme to carry out pipe laying, before removing the part dam behind the silt, Pipeline for pneumatically conveying materials is movably continued reservoir laying upstream, further remove dam far away silt.
Change the quantity of the quantity of desilting pipeline, the quantity that changes lateral, change gate shaft and change the particular location that upwarps bending tube section and can form a plurality of embodiment, be common excursion of the present invention, do not describe in detail one by one at this.
Claims (3)
1. hydraulic arrangement mode sediment ejection structure, contain desilting pipeline, it is characterized in that: described desilting pipeline is laid on the bottom of the reservior, its tail end is connected with the bottom outlet or the tunnel of dam body, and gate valve is set, with the control flow, the head end of described desilting pipeline upstream extends, its end is provided with a tip-tilted bending tube section, and the upper port of this bending tube section exceeds the silt alluvial face of expection; One side of described desilting pipeline is or/and the both sides tube wall is provided with lateral, and the upside tube wall of described desilting pipeline and lateral infall is provided with gate shaft, is provided with control valve in the described gate shaft.
2. hydraulic arrangement mode sediment ejection structure according to claim 1 is characterized in that: the quantity of described desilting pipeline is more than two, arranges for distributed import, is laid on respectively on the bottom of the reservior of bank and centre.
3. hydraulic arrangement mode sediment ejection structure according to claim 1 and 2 is characterized in that: the quantity of described gate shaft is more than one, is arranged on the tube wall of desilting pipeline diverse location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102305954A CN101418555B (en) | 2008-10-27 | 2008-10-27 | Hydraulic arrangement mode sediment ejection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102305954A CN101418555B (en) | 2008-10-27 | 2008-10-27 | Hydraulic arrangement mode sediment ejection structure |
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| Publication Number | Publication Date |
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| CN101418555A CN101418555A (en) | 2009-04-29 |
| CN101418555B true CN101418555B (en) | 2010-08-18 |
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| CN2008102305954A Active CN101418555B (en) | 2008-10-27 | 2008-10-27 | Hydraulic arrangement mode sediment ejection structure |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168413B (en) * | 2010-02-26 | 2012-10-03 | 浙江大学 | Water gate structure used in reclamation of land from sea and dam construction and exchanging method of water body in reclaimed area of dam |
| CN102767155B (en) * | 2012-08-08 | 2015-09-02 | 马向前 | A kind of reservoir desilting pipe-line system and distribution method thereof |
| CN102808396B (en) * | 2012-08-16 | 2015-09-30 | 梅一民 | A kind of method of the husky import of water desilting and the block clearing voluntarily that row's water transfer facility let out by reservoir |
| CN103774623B (en) * | 2013-12-23 | 2015-07-15 | 烟台华卫橡胶科技有限公司 | Air shield type sediment ejection gate |
| CN103741644A (en) * | 2014-01-27 | 2014-04-23 | 单郑洲 | Separation desilting device for reservoir |
| CN103924559B (en) * | 2014-05-04 | 2016-07-06 | 赵永宪 | A kind of multi-functional tilting Bottom Sutlet gate |
| CN106013005A (en) * | 2016-07-13 | 2016-10-12 | 长江水利委员会长江科学院 | Variable cross section desilting gallery system suitable for high-water-depth reservoir |
| CN108457237B (en) * | 2018-01-24 | 2020-04-17 | 西北农林科技大学 | Desilting and desilting dam system arrangement system and working method thereof |
| CN109577268A (en) * | 2018-11-08 | 2019-04-05 | 孟现坤 | Do not deposit reservoir |
| CN112176943B (en) * | 2020-09-16 | 2021-12-31 | 浙江省水利河口研究院(浙江省海洋规划设计研究院) | Negative-pressure sand discharge device and method utilizing tidal energy |
| CN113529642A (en) * | 2021-07-28 | 2021-10-22 | 河海大学 | Multifunctional telescopic sand discharge hole |
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| CN101418555A (en) | 2009-04-29 |
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