CN200998612Y

CN200998612Y - Round medium ring desilting basin

Info

Publication number: CN200998612Y
Application number: CNU2006201677477U
Authority: CN
Inventors: 高亚平; 武清; 徐燕; 李建峰
Original assignee: XINJIANG WATER CONSERVANCY AND HYDROPOWER ENGINEERING SERVICE Co
Current assignee: XINJIANG WATER CONSERVANCY AND HYDROPOWER ENGINEERING SERVICE Co
Priority date: 2006-12-01
Filing date: 2006-12-01
Publication date: 2008-01-02
Anticipated expiration: 2016-12-01

Abstract

The utility model provides a round mid-ring desilting basin. A desilting basin with an inverted cone-shaped bottom surface is arranged in an annular water inlet channel, a water outlet opening is arranged at the top end of the inverted cone-shaped bottom surface, the inner wall of the annular water inlet channel has the equal height, and the outer wall is higher than the inner wall, the height from the bottom surface of the water inlet opening of a straight culvert pipe to the bottom surface of a circular arc culvert pipe connected with the straight culvert pipe positioned in the desilting basin is reduced in sequence, an opening arranged on the top surface of the straight culvert pipe is communicated with the water outlet opening at the top end of the inverted cone-shaped bottom surface, a sand sluicing gate in the basin is arranged at the connector position of the circular arc culvert pipe and an annular sand sluicing channel in the desilting basin, a water blocking ridge is arranged on the bottom surface of the desilting basin, the outlet opening of the sand sluicing channel is penetrated through the lower part of the water inlet channel through the culvert pipe to be connected with the sand sluicing channel, the height from the bottom surface at the initial end of the annular sand sluicing channel to the bottom surface of a connected culvert pipe is reduced in sequence, and a sand sluicing gate outside the basin is arranged at the outlet position of the culvert pipe. The utility model properly solves the problem of sediment accumulation in a prior mountain stream river course, the sand discharing time is short, the water consumption for sand sluicing is low, the water-sand separating effect is good, and the continuous water supply can be realized.

Description

Encircle settling pit in the circle

Technical field

The utility model relates to hydraulic engineering, belongs to the energy that utilizes dynamic current self with the husky device that separates of the water in river course, particularly encircles settling pit in the circle.

Background technology

The river, Xinjiang belongs to flashy stream more, and silt content is big and thickness is uneven, and the sediment concentration in the river reaches tens of to hundreds of kilograms per cubic meter, and this brings very big harm and inconvenience to water for industrial use and people's lives water.Aspect agricultural water, silt deposits in the channel of being everlasting, and has a strong impact on the discharge capacity of channel, has seriously restricted applying of advanced water-saving technologies such as spray, drip irrigation.The settling pit that adopts in order to solve silt alluvial problem in the river course has linear settling pit and shaped form settling pit.The settling pit that the linear settling pit can be divided into single chamber settling pit, two chambers settling pit, multicell settling pit and have the side canal.The straight line settling pit is the simplest form, and it is applicable to that water supply flow is less than 15-20m ³/ s; When water supply flow greater than 15-20m ³During/s, can adopt two chambers or multicell settling pit, so that flushing in turn, continuous water supply.For the irrigated area water is not interrupted, the other side canal of building of the settling pit of being everlasting.But understand the increased water flow silt content like this, bring difficulty with water treatment to follow-up.The shaped form settling pit is to utilize the bend circulation theory that water sand is separated.Because the flow rate of water flow in the shaped form settling pit bend is compared with the above-mentioned type settling pit, its velocity ratio is bigger, and water consumption is many, and the sand surfing time is long, and the alluvial situation of shaped form settling pit is more serious.

Summary of the invention

The purpose of this utility model is to provide in a kind of circle encircles settling pit, can reasonable solution have silt alluvial problem in the mountain stream river course now, and the husky used time ratio of its row is less, and the sand surfing water consumption is fewer, the husky good separating effect of water, and can realize continuous water supply.

The purpose of this utility model is achieved in that in a kind of circle encircles settling pit, comprise the sand surfing canal that settling pit connects, its bottom surface of settling pit that is provided with in having the annular ponding canal closed-loop of delivery port is back taper, top in the back taper bottom surface is being provided with delivery port, the interior wall end face of annular ponding canal is contour, its exterior wall end face is higher than the interior wall end face, straight culvert pipe water inlet bottom surface to the height of the circular arc culvert pipe bottom surface that the straight culvert pipe that is positioned at settling pit connects reduces successively, the opening that is positioned at its end face setting of straight culvert pipe under the settling pit bottom surface is communicated with the delivery port on top, settling pit back taper bottom surface, the interface of the annular scouring sluice on circular arc culvert pipe and the settling pit bottom surface is being provided with scouring sluice in the pond, the afterbody of straight culvert pipe is being provided with water-blocking bank to the settling pit bottom surface between the corresponding annular ponding canal, the outlet of annular scouring sluice is passed from annular ponding canal bottom by culvert pipe and is being connected the sand surfing canal, the height of the bottom surface, top of annular scouring sluice to the culvert pipe bottom surface that annular scouring sluice connects reduces successively, in the exit of culvert pipe scouring sluice outside the pond is being set.

During the utility model work, close outside the pond scouring sluice in the scouring sluice and pond earlier, sediment laden flow enters straight culvert pipe by the inlet port of straight culvert pipe, enter settling pit from the delivery port that is positioned at top, settling pit back taper bottom surface, at first make circular motion along annular scouring sluice, water level harmony height is to Chi Ding then, and clear water is gone into annular ponding canal from the interior wall end face overflow of annular ponding canal, the husky good separating effect of water, the clear water of overflow is exported for using from the delivery port of annular ponding canal.When the silt of settling pit to a certain amount of when needing sand surfing, open scouring sluice outside the pond of settling pit outside earlier, alluvial is washed away at the silt on settling pit back taper surface, and takes away the silt in a part of sand surfing canal.Open scouring sluice in the pond in the settling pit then, carry out the underflow sand surfing.Because the upstream and downstream of straight culvert pipe of the present utility model, circular arc culvert pipe and annular scouring sluice has certain discrepancy in elevation, and produce the eddy flow sand surfing, so the husky used time ratio of row is less.When being 30 meters through hydraulics calculating settling pit external diameter, the sand surfing time only needs more than 20 minute, and the sand surfing water consumption is few.The utility model settling pit adopts intermittently sand surfing, because the sand surfing time is very short, after sand surfing finished, settling pit water inlet, overflow clear water can be caught up with the current in the channel of downstream, and water can not interrupted, and help management of the use of water.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a plan structure schematic diagram of the present utility model;

Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1;

Fig. 3 is the B-B sectional structure schematic diagram of Fig. 1.

The specific embodiment

Encircle settling pit in a kind of circle, as Fig. 1, Fig. 2, shown in Figure 3, comprise the sand surfing canal 11 that settling pit 4 connects, in the closed-loop that the annular ponding canal interior wall 3 with delivery port 13 constitutes settling pit 4 is being set, the bottom surface of settling pit 4 is back taper; Top at settling pit 4 bottom surface back tapers is being provided with delivery port 6.The global shape of annular ponding canal 1 is annular or oval ring.Delivery port 6 be shaped as circle or polygon or ellipse.Interior wall 3 end faces of annular ponding canal 1 are contour, its exterior wall 2 end faces are higher than interior wall 3 end faces, straight culvert pipe 5 water inlet bottom surfaces to the height of circular arc culvert pipe 9 bottom surfaces that the straight culvert pipe 5 that is positioned at settling pit 4 connects reduces successively, be positioned at the straight culvert pipe 5 under settling pit 4 bottom surfaces, the opening that its end face is provided with is communicated with the delivery port 6 on back taper top, settling pit 4 bottom surface, the interface of the annular scouring sluice 7 on circular arc culvert pipe 9 and settling pit 4 bottom surfaces is being provided with scouring sluice 8 in the pond, the afterbody of straight culvert pipe 5 is being provided with water-blocking bank 10 to settling pit 4 bottom surfaces between the corresponding annular ponding canal 1, the height of water-blocking bank 10 is higher than the height of sand surfing water level, is lower than the height of annular ponding canal interior wall 3 end faces.The effect of water-blocking bank 10 is the living eddy current of flushing water miscarriage that prevent in the settling pit 4.The outlet of annular scouring sluice 7 is passed from annular ponding canal 1 bottom by culvert pipe and is being connected sand surfing canal 11, and the bottom surface, top of annular scouring sluice 7 to the height of the culvert pipe bottom surface that annular scouring sluice 7 connects reduces successively, and scouring sluice 12 outside the pond is being set in the exit of culvert pipe.

Claims

1, encircle settling pit in a kind of circle, comprise the sand surfing canal (11) that settling pit (4) connects, it is characterized in that: the settling pit (4) that in having annular ponding canal (1) closed-loop of delivery port (13), is provided with, its bottom surface is back taper, delivery port (6) is being set on the top of back taper bottom surface, interior wall (3) end face of annular ponding canal (1) is contour, its exterior wall (2) end face is higher than interior wall (3) end face, the height of straight culvert pipe (5) water inlet bottom surface to circular arc culvert pipe (9) bottom surface that the straight culvert pipe (5) that is positioned at settling pit (4) connects reduces successively, be positioned at the straight culvert pipe under settling pit (4) bottom surface, the opening that its end face is provided with is communicated with the delivery port (6) on top, settling pit (4) back taper bottom surface, the interface of the annular scouring sluice (7) on circular arc culvert pipe (9) and settling pit (4) bottom surface is being provided with scouring sluice in the pond (8), the afterbody of straight culvert pipe (5) is being provided with water-blocking bank (10) to settling pit (4) bottom surface between the corresponding annular ponding canal (1), the outlet of annular scouring sluice (7) is passed from annular ponding canal (1) bottom by culvert pipe and is being connected sand surfing canal (11), the bottom surface, top of annular scouring sluice (7) to the discrepancy in elevation of the culvert pipe bottom surface that annular scouring sluice (7) connects reduces successively, and scouring sluice outside the pond (12) is being set in the exit of culvert pipe.

2, encircle settling pit in the circle according to claim 1, it is characterized in that: the height of water-blocking bank (10) is higher than the height of sand surfing water level, is lower than the height of annular ponding canal interior wall (3) end face.

3, encircle settling pit in the circle according to claim 1, it is characterized in that: the global shape of annular ponding canal (1) is annular or oval ring.

4, encircle settling pit in the circle according to claim 1, it is characterized in that: delivery port (6) be shaped as circle or polygon or ellipse.