CN201155102Y

CN201155102Y - Hydraulic arranged sediment ejection structure

Info

Publication number: CN201155102Y
Application number: CNU2008200692483U
Authority: CN
Inventors: 张金良; 练继建; 杨敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-31
Filing date: 2008-01-31
Publication date: 2008-11-26
Anticipated expiration: 2018-01-31

Abstract

The utility model discloses a sand discharge structure made by means of hydraulic arrangement. The utility model consists of a sand discharge pipeline. The sand discharge pipeline is laid on a reservoir bed. The tail end of the pipeline is connected with the bottle hole of a bam or a tunnel. A brake valve is arranged for controlling the flow. The head end of the sand discharge pipeline extends along an upstream. The end of the sand discharge pipeline is provided with a bended pipe section that is unwrapped. The upper end of the bended pipe section is higher than an expected sediment accumulation surface. A branch pipeline is arranged on the pipe wall of one and/or two sides of the sand discharge pipeline. A gate shaft is arranged on the pipe wall of the sand discharge pipeline. A control valve is arranged in the gate shaft. The utility model is provided with more than two sand discharge pipelines that are respectively arranged on a bank and the middle reservoir bed. The sand discharge structure extends the range of sand discharge by changing the water inlet position of a sand discharge hole of a reservoir and making use of the spatial variability of a covered way. In addition, the sand discharge structure does not require additionally supplied energy and has high sand discharge efficiency and good social and economic benefits.

Description

Hydraulic arrangement mode sediment ejection structure

One, technical field:

The utility model relates to a kind of sand discharge apparatus, particularly relates to a kind of hydraulic arrangement mode sediment ejection structure.

Two, background technology:

At present, 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.The quantity of sand and mud of hopper zone before dam deposition is few, does not reach the gaza's requirement that needs, before need applying the engineering means silt of reservoir area, dam far away being delivered to the dam.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.

Three, utility model content:

Technical problem to be solved in the utility model 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 solution of the utility model 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 is 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 valve well.

The quantity of described desilting pipeline is more than two, is laid on respectively on the bottom of the reservior of bank and centre.

The quantity of described gate valve well is more than one, is arranged on the upside tube wall of desilting pipeline diverse location.

The beneficial effects of the utility model are:

1, the brand-new husky theory of row of the utility model utilization, 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.

2, the head end of desilting pipeline of the present utility model 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.

3, the upside tube wall of the utility model desilting pipeline is provided with gate shaft, and gate shaft is provided with gate, can open different gates like this, 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.

4, the utility model desilting pipeline head end is 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.

5, the utility model is arranged husky efficient height, and as calculated and with reference to pertinent literature, it arranges husky efficient can reach 400kg/m ³More than, be far superior to only to rely on merely the husky mode of row of scheduling means.

6, the utility model is applied widely, and 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;

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 11, and the upper port 10 of this bending tube section 11 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 valve 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 utility model 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.

The quantity that changes the quantity of desilting pipeline, the quantity that changes lateral and change gate valve well can be formed a plurality of embodiment, is common excursion of the present utility model, does not describe in detail one by one at this.

Claims

1, a kind of hydraulic arrangement mode sediment ejection structure contains desilting pipeline, it is characterized in that: described 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 described desilting pipeline upstream extends, its end is 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, its upside tube wall is provided with gate shaft, is provided with control valve in the described gate valve well.

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, 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 valve well is more than one, is arranged on the upside tube wall of desilting pipeline diverse location.