CN211078596U

CN211078596U - Arc-shaped water outlet weir plate

Info

Publication number: CN211078596U
Application number: CN201921993474.5U
Authority: CN
Inventors: 冯云刚; 李振川; 刘燕云
Original assignee: Beijing General Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Beijing General Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-07-24
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses an arc-shaped water outlet weir plate, which comprises a flow guide weir plate and a vertical supporting plate, wherein the flow guide weir plate comprises an inflow flow guide weir plate and an outflow flow guide weir plate, the inflow flow guide weir plate is an arc-shaped plate, one end of the inflow flow guide weir plate is welded and fixed with the front side surface of the upper end of the supporting plate, the other end of the inflow flow guide weir plate is forwards bent and downwards suspended, the outflow flow guide weir plate is an arc-shaped plate, one end of the outflow flow guide weir plate is welded and fixed with the rear side surface of the upper end of the supporting plate, the other end of the outflow flow guide weir plate is backwards bent downwards, and the bent end extends downwards; the inflow diversion weir plate, the supporting plate and the top surface of the outflow diversion weir plate are in smooth transition connection. The utility model discloses avoid forming the drop, avoid appearing the turbulent flow, reduce and overflow rivers and air large tracts of land contact, reduce the drop and oxygenate, reduce the plus carbon source and throw the volume of adding, eliminate the noise that the drop produced simultaneously.

Description

Arc-shaped water outlet weir plate

Technical Field

The utility model belongs to the technical field of sewage treatment, specifically an arc goes out weir plate.

Background

At present, rectangular thin-wall weirs are mostly adopted for a water outlet well of a lift pump house of a sewage plant, a sand basin water outlet weir and a denitrification filter water inlet weir. In order to ensure that other grids can still effectively treat all water when a certain grid of follow-up treatment unit is subjected to troubleshooting during engineering design, the drop height behind a weir is often set to be higher, so that the drop height is high during normal operation, drop oxygenation is serious, and drop oxygenation easily causes carbon sources in sewage to be more insufficient. Along with the gradual improvement of the requirements of nitrogen and phosphorus removal of sewage, the demand of a carbon source in the sewage is also gradually improved. Drop oxygenation is unfavorable for effectively utilizing the carbon source, can lead to the increase of plus carbon source volume, and simultaneously, the noise that drop produced is the third big noise source except that fan, water pump of sewage plant, is the subject that "falls the noise" and should focus on focusing on of sewage plant, awaits the solution urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides an arc goes out weir plate, its aim at solve present weir after drop oxygenate, drop noise big, plus the problem that carbon source input volume is big.

The utility model adopts the following technical scheme:

an arc-shaped water outlet weir plate comprises a flow guide weir plate and a vertical supporting plate, wherein the flow guide weir plate comprises an inflow flow guide weir plate and an outflow flow guide weir plate, the inflow flow guide weir plate is an arc-shaped plate, one end of the inflow flow guide weir plate is welded and fixed with the front side surface of the upper end of the supporting plate, the other end of the inflow flow guide weir plate is bent forwards and downwards and suspended, the outflow flow guide weir plate is an arc-shaped plate, one end of the outflow flow guide weir plate is welded and fixed with the rear side surface of the upper end of the supporting plate, the other end of the outflow flow guide weir plate is bent backwards and downwards, and the bent end of; the inflow diversion weir plate, the supporting plate and the top surface of the outflow diversion weir plate are in smooth transition connection.

The water outlet weir plate is arranged above the weir, the inflow diversion weir plate is positioned on the front side of the weir and is wholly immersed under the liquid level of the upstream water body, the outflow diversion weir plate is positioned on the rear side of the weir and is wholly immersed under the liquid level of the weir flow and guides the weir flow into the downstream water body, and the lower end of the support plate is adjusted and fixed on the weir through a plurality of expansion bolts arranged on the side wall of the weir on one side of the downstream water body.

The inclined straight plate and the water surface of the downstream water body form an included angle of 45 degrees.

And balance through holes are respectively arranged at positions on the inflow diversion weir plate and the outflow diversion weir plate, which are close to the supporting plate, and are uniformly distributed along the length direction of the diversion weir plate.

The diameter of the balance through hole is 50 mm.

The arc angle of the arc plate of the inflow diversion weir plate is 45 degrees; the arc angle of the arc plate of the outflow diversion weir plate is 45 degrees.

The utility model has the advantages as follows:

the utility model discloses compare with current sewage plant elevator pump house outlet well outlet weir, grit chamber outlet weir, denitrification filtering pond inlet weir, utilize arc business turn over water to overflow the weir, make rivers steady, evenly get into the low reaches water along the weir plate, avoid forming the drop, avoid appearing the turbulent flow, reduce and overflow rivers and air large tracts of land contact, reduce drop oxygenation, reduce the external carbon source input volume, eliminate the noise that the drop produced simultaneously.

Description of the drawings:

fig. 1 is a schematic view of the cross-sectional structure of the present invention.

Fig. 2 is a schematic top view of a part of the structure of the present invention.

Fig. 3 is a schematic view of the structure of the present invention.

Reference numerals:

1-diversion weir plate 11-inflow diversion weir plate, 12-outflow diversion weir plate, 121-inclined straight plate, 3-balance hole, 4-expansion bolt, 5-support plate, 6-weir, 7-upstream water body, 8-weir passing water flow, 9-downstream water body

The specific implementation mode is as follows:

the following describes the embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, an arc-shaped water outlet weir plate comprises a flow guiding weir plate 1 and a vertical support plate 5, wherein the flow guiding weir plate 1 comprises an inflow flow guiding weir plate 11 and an outflow flow guiding weir plate 12, the inflow flow guiding weir plate 11 is an arc-shaped plate, one end of the arc-shaped plate is welded and fixed with the front side surface of the upper end of the support plate 5, the other end of the arc-shaped plate is bent forwards and downwards, the outflow flow guiding weir plate 12 is an arc-shaped plate, one end of the arc-shaped plate is welded and fixed with the rear side surface of the upper end of the support plate 5, the other end of the arc-shaped plate is bent backwards and downwards, and the bent end of the arc-shaped; the top surfaces of the inflow diversion weir plate 11, the support plate 5 and the outflow diversion weir plate 12 are in smooth transition connection.

The effluent weir plate is arranged above the weir 6, the inflow diversion weir plate 11 is positioned at the front side of the weir 6 and is wholly immersed under the liquid level of the upstream water body 7, the outflow diversion weir plate 12 is positioned at the rear side of the weir 6 and is wholly immersed under the liquid level of the weir water flow 8 and drains the weir water flow 8 into the downstream water body 9, and the lower end of the support plate 5 is adjusted and fixed on the weir 6 through a plurality of expansion bolts 4 arranged on the side wall of the weir 6 positioned at one side of the downstream water body 9, which is shown in the attached drawing 1.

The inclined straight plate 121 and the water surface of the downstream water body 9 form an included angle of 45 degrees, see fig. 1 and 3.

The positions of the inflow diversion weir plate 11 and the outflow diversion weir plate 12 close to the support plate 5 are respectively provided with a plurality of balance through holes 3, and the balance through holes 3 are uniformly distributed along the length direction of the diversion weir plate 1 at intervals of 500mm, as shown in the attached drawings 1 and 2.

The arc angle of the arc plate of the inflow diversion weir plate 11 is 45 degrees; the arc angle of the arc plate of the outflow guide weir plate 12 is 45 degrees, see fig. 1 and 3.

The supporting plate 5 is fixed on the side wall of the weir 6 through an expansion bolt 4, and the position can be adjusted up and down, see figure 1.

Claims

1. The utility model provides an arc goes out weir plate which characterized in that: the flow guide weir plate comprises a flow guide weir plate (1) and a vertical supporting plate (5), wherein the flow guide weir plate (1) comprises an inflow flow guide weir plate (11) and an outflow flow guide weir plate (12), the inflow flow guide weir plate (11) is an arc-shaped plate, one end of the inflow flow guide weir plate is welded and fixed with the front side surface of the upper end of the supporting plate (5), the other end of the inflow flow guide weir plate is forwards bent and downwards suspended, the outflow flow guide weir plate (12) is an arc-shaped plate, one end of the outflow flow guide weir plate is welded and fixed with the rear side surface of the upper end of the supporting plate (5), the other end of the outflow flow guide weir plate is backwards bent downwards, and the bent end extends downwards; the top surfaces of the inflow diversion weir plate (11), the supporting plate (5) and the outflow diversion weir plate (12) are in smooth transition connection.

2. An arc-shaped water outlet weir plate according to claim 1, wherein the water outlet weir plate is arranged above a weir (6), the inflow guide weir plate (11) is positioned in front of the weir (6) and is entirely submerged under the liquid level of the upstream water body (7), the outflow guide weir plate (12) is positioned in rear of the weir (6) and is entirely submerged under the liquid level of the overflow weir (8) and guides the overflow weir (8) into the downstream water body (9), and the lower end of the support plate (5) is adjustably fixed on the weir (6) by a plurality of expansion bolts (4) arranged on the side wall of the weir (6) positioned on one side of the downstream water body (9).

3. An arcuate weir according to claim 1, wherein the angle between the inclined straight plate (121) and the surface of the downstream body of water (9) is 45 degrees.

4. An arc-shaped water outlet weir plate according to claim 1, characterized in that the positions of the inflow diversion weir plate (11) and the outflow diversion weir plate (12) close to the supporting plate (5) are respectively provided with a plurality of balancing through holes (3), and the balancing through holes (3) are uniformly distributed along the length direction of the diversion weir plate (1).

5. An arc-shaped weir plate according to claim 4, wherein the diameter of the balancing through-holes (3) is 50 mm.

6. A curved weir according to claim 1 or 2, characterised in that the arc angle of the inflow weir (11) is 45 degrees; the arc angle of the arc plate of the outflow diversion weir plate (12) is 45 degrees.