Integrated compound sand sink with sinking row

Abstract

The application discloses a kind of sinking row integrated compound sand sink, including the pool body with inlet and outlet; be provided with sand outlet and be used for opening and closing sand outlet at the lower portion of drain outlet;Pool body is divided into gradual change section and sand washing section from inlet to outlet;The side wall of gradual change section pool body is the horn mouth structure that expands outward downstream symmetric to inlet axis, and the side wall of sand washing section pool body is set along the direction of water flow, and the bottom plate of sand washing section pool body is symmetric to inlet axis and is inclined to inlet axis from two sides to form sand area;Sand washing groove is opened on the bottom plate of sand washing section pool body along inlet axis, and the upper end of sand washing groove extends to inlet, and the lower end of sand washing groove extends to sand outlet;Vortex groove is opened on the bottom plate of sand washing section pool body, and vortex groove is opened from the side wall of sand washing section pool body to sand washing groove direction and communicates with sand washing groove.The application realizes sand supply, sand discharge and dredging in the same pool, is simple to operate, and has low investment cost and operating cost.

Description

TECHNICAL FIELD

[0001] The present application relates to water conservancy and hydropower engineering construction, and particularly to a sinking fence integrated compound sand settling basin. BACKGROUND

[0002] Water is the source of life, the key to production, and the basis of ecology. With the development of economy and society, the demand for water quality is becoming higher and higher in water resource utilization, and the high sediment content of rivers in the north limits the development and utilization of water resources, and to some extent, aggravates the situation of water resource shortage. In order to reduce the sediment content, water resource utilization projects often set up sand settling basins to settle the sediment in water. At present, the sand settling basin mostly adopts the static water sand settling method, and the section mostly adopts a single rectangular section, which reduces the sediment carrying capacity by expanding the section area and reducing the flow velocity, and settles the sediment larger than the design particle size in water to meet the water requirement. However, there are some problems, such as single sand settling basin section, low settling efficiency, incomplete scouring of accumulated sediment, difficulty in sediment discharge, and the need for regular auxiliary manual dredging, sediment transportation and occupation of the water supply scale of the sand settling basin. SUMMARY

[0003] The present application relates to water conservancy and hydropower engineering construction, and particularly to a sinking fence integrated compound sand settling basin.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] The sinking fence integrated compound sand settling basin comprises a pool body provided with a water inlet and a water outlet; a sediment discharge port is arranged below the water outlet, a gate slot is arranged on the pool wall where the sediment discharge port is located, a valve plate for opening or closing the sediment discharge port is inserted into the gate slot, and the valve plate can be raised or lowered along the gate slot; the pool body is divided into a gradual change section and a sand and sediment flushing section from the water inlet to the water outlet; the side wall of the gradual change section pool body is a horn mouth structure that expands outward downstream symmetrically about the water inlet axis, and the bottom plate of the gradual change section pool body is arranged to be inclined downward along the water flow direction; the side wall of the sand and sediment flushing section pool body is arranged along the water flow direction, the bottom plate of the sand and sediment flushing section pool body is connected with the bottom plate of the gradual change section pool body and is arranged to be inclined downward along the water flow direction, and at the same time, the bottom plate of the sand and sediment flushing section pool body is arranged to be inclined from both sides to the water inlet axis, thereby forming a sand settling area; a sand flushing groove with a circular arc cross section is arranged on the bottom plate of the sand and sediment flushing section pool body along the water inlet axis, the upper end of the sand flushing groove extends to the water inlet, and the lower end of the sand flushing groove extends to the sediment discharge port; a vortex groove is arranged on the bottom plate of the sand and sediment flushing section pool body, and the vortex groove is arranged from the side wall of the sand and sediment flushing section pool body to the sand flushing groove and communicates with the sand flushing groove.

[0006] Preferably, the angle of the sand flushing groove inclined downward along the water flow direction is greater than the angle of the bottom plate of the sand and sediment flushing section pool body inclined downward along the water flow direction.

[0007] Preferably, there are two vortex channels, one of which is opened perpendicular to the water flow direction, and the other is opened in the downstream direction.

[0008] Preferably, the vortex channel is opened from the side wall of the sedimentation and flushing section of the pool in the downstream direction.

[0009] Preferably, the vortex channel is opened from the side wall of the sedimentation and flushing section of the pool in the upstream direction.

[0010] Preferably, the width of the vortex groove opening is smaller than the arc diameter of the vortex groove.

[0011] Preferably, the sand discharge port is a circular sand discharge port, and the radius of curvature of the bottom of the sand flushing trough is consistent with the radius of the circular sand discharge port.

[0012] This invention follows the principle of natural riverbed shoal and sedimentation, optimizing the single rectangular cross-section of the sedimentation basin into a complex cross-section structure consisting of a gradient section, a sedimentation zone, and a flushing channel. The wide and shallow sedimentation zone reduces water flow velocity, facilitating sediment settling. When high-sediment-content water flows tangentially into the vortex channel at the bottom of the sedimentation zone, the centrifugal effect of the vortex (e.g., ...) is utilized... Figure 3 As shown in the diagram, this invention achieves secondary sedimentation, with the vortex channel discharging sediment into the central vortex channel. The flushing channel has a narrow and deep cross-section, high water velocity, and its end connects to the discharge port, facilitating flushing and discharge. The invention features a simple structure, clear functional zoning, and high sedimentation efficiency. By setting the slope of the sedimentation tank bottom plate in stages, different flow velocity zones are constructed, allowing sediment of different particle sizes to settle in stages. An upstream gradient section increases the width of the tank, slowing the water flow and accelerating sediment settling. The water supply and discharge control states can be flexibly switched by raising and lowering the valve plate, efficiently achieving simultaneous sedimentation water supply and discharge within the same tank. Operation is simple, convenient, and investment and operating costs are low. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of the present invention.

[0014] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-sectional structure.

[0015] Figure 3 yes Figure 1 A magnified structural diagram of the BB-direction cross-section.

[0016] Figure 4 yes Figure 1 A schematic diagram of the CC-direction cross-sectional structure. Detailed Implementation

[0017] The embodiments of the present application are described in detail below with reference to the accompanying drawings, which are implemented on the premise of the technical solutions of the present application, and give detailed implementation manners and specific operation processes, but the protection scope of the present application is not limited to the following embodiments.

[0018] As shown in the drawings, Figures 1-4 The sand discharge integrated compound sand pool of the present application comprises a pool body provided with a circular structure water inlet 1 and a circular structure water outlet 2; a sand discharge port 3 is arranged directly below the water outlet 2, a door groove 4 is vertically arranged on the pool wall where the sand discharge port 3 is located, a valve plate 5 for opening or closing the sand discharge port 3 is inserted into the door groove 4, and the valve plate 5 can be raised or lowered along the door groove 4.

[0019] As shown in the drawings, Figure 1 The pool body is divided into a gradual change section 6 and a sand and flushing section 7 from the water inlet 1 to the water outlet 2; the side wall 6.1 of the gradual change section 6 pool body is a horn mouth structure that expands outward downstream symmetrically to the water inlet axis 8.

[0020] As shown in the drawings, Figure 2 The bottom plate 6.2 of the gradual change section 6 pool body is arranged to be inclined downward along the water flow direction, the side wall 7.1 of the sand and flushing section 7 pool body is arranged vertically along the water flow direction, the bottom plate 7.2 of the sand and flushing section 7 pool body is connected with the bottom plate 6.2 of the gradual change section 6 pool body and is arranged to be inclined downward along the water flow direction; the angle of the downward inclination of the bottom plate 7.2 of the sand and flushing section 7 pool body is smaller than the angle of the downward inclination of the bottom plate 6.2 of the gradual change section 6 pool body, so as to facilitate sand setting in the sand and flushing section, and at the same time, the bottom plate 7.2 of the sand and flushing section 7 pool body is arranged to be inclined downward from both sides to the water inlet axis 8 direction symmetrically to the water inlet axis 8, thereby forming a sand setting area.

[0021] A sand flushing groove 9 with a circular arc cross section is formed on the bottom plate 7.2 of the sand and flushing section pool body along the water inlet axis 8, the upper end of the sand flushing groove 9 extends to the water inlet 1, the lower end of the sand flushing groove 9 extends to the sand discharge port 3, and the radius of the arc at the bottom of the sand flushing groove 9 is consistent with the radius of the sand discharge port 3, so as to facilitate sand discharge of the sand discharge port 3.

[0022] As shown in the drawings, Figure 1 , 2 On the bottom plate 7.2 of the sand and flushing section 7 pool body, two vortex grooves 7.3, 7.4 are symmetrically arranged on the left and right sides of the water inlet axis 8 from the upstream to the downstream, each vortex groove 7.3, 7.4 is formed from the side wall 7.1 of the sand and flushing section 7 pool body to the sand flushing groove 9 direction and communicates with the sand flushing groove 9; the first vortex groove 7.3 is formed perpendicular to the water flow direction, and the second vortex groove 7.4 is formed in the downstream direction, of course, multiple vortex grooves can also be formed.

[0023] As shown in the drawings, Figure 3 The slot width of each vortex groove 9 is smaller than the circular arc diameter of the vortex groove, which is more conducive to the formation of vortex flow in the vortex groove 9.

Claims

1. An integrated compound sand sink, comprising a sink body provided with a water inlet and a water outlet; characterized in that: The sand discharge port is arranged below the water discharge port, a gate groove is arranged on the pool wall of the sand discharge port, and a valve plate for opening or closing the sand discharge port is inserted into the gate groove; the pool body is divided into a gradual change section and a sand and flushing section from the water inlet port to the water outlet port; the side wall of the gradual change section pool body is a horn mouth structure which expands outward downstream symmetrically about the water inlet port axis, and the bottom plate of the gradual change section pool body is arranged downwardly along the water flow direction; the side wall of the sand and flushing section pool body is arranged vertically along the water flow direction, the bottom plate of the sand and flushing section pool body is connected with the bottom plate of the gradual change section pool body and is arranged downwardly along the water flow direction, and meanwhile, the bottom plate of the sand and flushing section pool body is arranged obliquely from the two sides to the water inlet port axis so as to form a sand setting area; a sand flushing groove with a circular arc cross section is arranged on the bottom plate of the sand and flushing section pool body along the water inlet port axis, the upper end of the sand flushing groove extends to the water inlet port, and the lower end of the sand flushing groove extends to the sand discharge port; a vortex groove is arranged on the bottom plate of the sand and flushing section pool body, and the vortex groove is arranged from the side wall of the sand and flushing section pool body to the sand flushing groove and communicates with the sand flushing groove; The angle of the sand flushing groove downwardly along the water flow direction is greater than the angle of the bottom plate of the sand and flushing section pool body downwardly along the water flow direction. The vortex grooves are two, one vortex groove is arranged vertically to the water flow direction, and the other vortex groove is arranged downwardly to the downstream direction. Alternatively, the vortex grooves are arranged from the side wall of the sand and flushing section pool body to the downstream direction. Alternatively, the vortex grooves are arranged from the side wall of the sand and flushing section pool body to the upstream direction.

2. The integrated multiple-type sand trap according to any one of claims 1, characterized in that: The slot width of the vortex groove is less than the diameter of the circular arc of the vortex groove.

3. The integrated complex sand sink according to any one of claims 1, characterized in that: The sand discharge port is a circular sand discharge port, and the radius of the arc of the bottom of the sand flushing groove is consistent with the radius of the circular sand discharge port.

Images