CN1244614A

CN1244614A - Pipe silt discharging method and discharger

Info

Publication number: CN1244614A
Application number: CN 98112583
Authority: CN
Inventors: 何相华; 冯佳永
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-07
Filing date: 1998-08-07
Publication date: 2000-02-16

Abstract

The end of the pipe inside dam is stretched down near the surface of silt and the other end is stretched outside the dam and lower than the water surface. By means of water pressure or siphonage, silt under water is discharged to outside the dam along with the water flow. The said method is simple, wide applicable range, and high efficiency and consumes no power.

Description

Row of conduits silt method and device

The present invention relates to the spoil disposal method for determining sand and the device of a kind of reservoir, rivers etc.

At present, known spoil disposal method for determining sand has headcut scour, and machinery excavates, pump power is inhaled and way such as sent, and these methods all have its shortcoming and limitation, and machinery excavates, and it is big that pump power is inhaled the energy consumption of sending, and efficient is poor; The reservoir that the high water level difference is arranged inside and outside the only suitable dam of headcut scour, narrow application range, and the EFFECTIVE RANGE of headcut scour is short, and the husky time of spoil disposal concentrates, and is unfavorable to the downstream, the for example non-retaining in flood season of Sanmenxia Reservoir, under let out the basic clear water that is, there is souring in some location, downstream, concentrate flood season row husky, 88% of annual husky amount concentrates on discharges the 7-9 month, causes the downstream severe siltation.The Yellow River countless diversion works along the line all can't adopt the headcut scour method to get rid of silt, and adopts machinery to excavate, and pump power is inhaled and sent that then cost is too high.

The purpose of this invention is to provide a kind of new row of conduits silt method and device, its suitable spoil disposal sand that the reservoir of water-head is arranged inside and outside Yellow River Channel that water-head is arranged inside and outside the embankment and dam entirely, it does not consume energy, and sphere of action is wide, the efficient height.

Of the present invention is to realize like this, one end of a pipeline is inserted the place of the lower floor of water near silt, the other end below the water surface by dam (dike) or (exceeding the water surface below 8 meters) more than the water surface by dam (dike) and the port of export below the water surface, so just can utilize the pressure or the siphonage of water self, the bottom silt water of reservoir, fluviatic water is discharged outside the dam (dike), thereby reach the purpose of spoil disposal sand.For the spoil disposal sand in reaching in a big way, inlet part can be made the pattern of a round or outlet and connect the pattern of several inlet tubes and inlet part is made movable, can make the silt in conduit row a slice place like this.Cause stuck entrance point that silt row is not gone out in order to prevent the duct inlet end from inserting in the silt, can withstand the silt surface, make entrance point and silt surface that one segment distance be arranged, be generally the 5-100 millimeter at the prefabricated bearing support of entrance point.

Because the Yellow River is that a world is exclusive hanging river, can settle conduit of the present invention and adopt method of the present invention in diversion works place along the line in the Yellow River, the silt at the bottom of utilizing the pressure of water self and siphonage with Huanghe water ejects.For the Yellow River diversion works, generally draw yellow head works and all build in dam dangerous section dam, as adopt device of the present invention and utilize siphonage, then draw yellow head works and also can build in common embankment.

For cutting the reservoir that blocks up with dam on the rivers, can directly discharge outside the dam with the silt water that method of the present invention and device are drawn, also the port of export of conduit can be received the water inlet of the hydraulic turbine, thereby silt water also can be used to generating.

Advantage of the present invention is as follows: with respect to headcut scour, of the present invention applied widely, operating distance is far away, and the husky time of spoil disposal disperses, and excavates with respect to machinery, and pump power is inhaled and sent here, and method of the present invention does not consume energy.

The invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is the schematic diagram that utilizes water self pressure spoil disposal sand.

Fig. 2 is the schematic diagram that utilizes siphonage spoil disposal sand.

1 dam (dike), 2 conduits, 3 ports of export, 4 entrance points, 5 bearing supports, 6 water, 7 impellers, 8 silts, 9 blades, 10 flexible pipes among the figure

In Fig. 1, entrance point (4) is linked to be an integral body with the port of export (3) with conduit (2), entrance point is equipped with bearing support (5), make the entrance point (4) and the surface of silt (8) keep certain distance, by dam, this system just can discharge silt outside the dam (dike) under the pressure effect of water self whole system with water below the water surface.

In Fig. 2, its structure is basic identical with Fig. 1, just entrance point is that a round and conduit (2) are from passing through dam (dike) more than the water surface, (because atmospheric pressure is 10.336 meter water columns, add that silt proportion is greater than water and pipe losses, so conduit (2) exceeds the distance of the water surface should be less than 8 meters), in this scheme of Fig. 2, in order to emit silt water, the port of export (3) should be placed on below the water surface, and the port of export (3) will connect vacuum pump and bleed, and the back that deflates just can utilize siphonage to emit the silt water of dam (dike) inner bottom part.

For the water that makes entrance point (4) can fully stir, can load onto impeller (7) at entrance point, its impact backspin at current is turned over; Perhaps in the entrance point of entrance point (4), settle several screw type blades (9) in the certain distance.Can form rotary water current at entrance point, like this, just reach well-beaten purpose.For entrance point (4) can be moved, can connect one section flexible pipe (10) in the centre.

Embodiment:

Press the scheme of Fig. 1, with 500 millimeters of diameters, the steel pipe that wall thickness is 6 millimeters is imbedded in the dam (dike) in advance, in dam (dike) apart from the place of dam certain distance, the rubber tube that connects one section same diameter with flange, the steel pipe of another termination of rubber tube band entrance point (4), the front of entrance point (4) are equipped with a sand frame 5. and an impeller 9..

Claims

1. a row of conduits silt method is characterized in that an end of pipeline stretches into the following place near silt of the water surface, and the other end utilizes the pressure of water self or siphon principle that the silt in the dam (dike) is discharged outside the dam (dike) with current by dam (dike).

2. a row of conduits silt device comprises: dam (dike) (1), conduit (2), the port of export (3), entrance point (4), bearing support (5), water (6), impeller (7), silt (8), blade (9), flexible pipe (10).Its special sheet is that the port of export (3), entrance point (4) are communicated with conduit (2), and entrance point (4) stretches into the following top near the silt surface of the water surface, and the port of export (3) stretches out the outer place that is lower than the water surface of dam (dike).

3. a kind of pipeline mud discharging device according to claim 2 is characterized in that below the entrance point (4) bearing support (5) being housed.

4. a kind of row of conduits silt device according to claim 2 is characterized in that in entrance point (4) pipeline screw type blade (9) being housed.

5. a kind of row of conduits silt device according to claim 2 is characterized in that entrance point (4) front is equipped with impeller (8).

6. according to a kind of row of conduits silt device shown in the claim 2, it is characterized in that dam (dike) inner catheter (2) is connected with flexible pipe (10).