CN212039158U

CN212039158U - Rectifying device of high-density sedimentation tank

Info

Publication number: CN212039158U
Application number: CN202020353530.5U
Authority: CN
Inventors: 罗金华; 王立; 周山罡; 吉屹蕾
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-12-01
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to a fairing of high density sedimentation tank belongs to feedwater and sewage treatment technical field, include along a plurality of grids that the degree of depth direction of the section of class that pushes away of high density sedimentation tank inserts, interval between the adjacent grid is from the center to both sides by little grow gradually along the length direction that pushes away the section of class. The water coming along the width direction of the plug flow section is rectified by the grid bars with different intervals, and then the water head loss is the same, so that the water flow is uniformly distributed on the whole water passing section of the plug flow section, the phenomena of short flow and dead water cannot occur, and the water quality of the effluent of the high-density sedimentation tank is ensured.

Description

Rectifying device of high-density sedimentation tank

Technical Field

The utility model belongs to the technical field of feedwater and sewage treatment, a fairing of high density sedimentation tank is related to.

Background

The high-density sedimentation tank is a reaction facility integrating coagulation, flocculation, sludge sedimentation and backflow, can remove most suspended matters and turbidity in water by adding various medicaments, and has the advantages of compact structure, high surface load, impact load resistance, land occupation saving, good sludge concentration and the like. Fig. 1 is a top view of a high-density sedimentation tank, the high-density sedimentation tank includes a flocculation zone 1, a plug flow section 2, a sedimentation zone inlet section 3 and a sedimentation zone 4, and a specific structural style from the flocculation zone 1 to the plug flow section 2 causes a phenomenon that water flow is easy to generate short flow and dead water in the plug flow section 2, in the length direction of the plug flow section 2, a short flow zone 5 is formed in the middle area of the plug flow section 2, dead water zones 6 are formed on two sides of the plug flow section, the water flow is not distributed uniformly, and the quality of the outlet water of the high-density sedimentation tank is seriously affected.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a fairing of high density sedimentation tank makes rivers push away class evenly distributed, guarantees the play water quality of high density sedimentation tank, solves among the prior art rivers in pushing away class water distribution inequality, appear the problem of short stream and stagnant water easily.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a fairing of high density sedimentation tank, includes a plurality of bars that insert along the degree of depth direction of the plug flow section of high density sedimentation tank, and the interval between the adjacent bar is from little grow to both sides gradually along the length direction of plug flow section.

Further, the distance between the adjacent grids is not changed along the width direction of the flow pushing section.

Further, each grid is arranged at the middle upper part of the flow pushing section in the depth direction.

Furthermore, two ends of each grid bar are vertically connected with a grid mesh, and the grid meshes are fixed on the inner wall of the flow pushing section.

Further, the flow pushing section is divided into a grid dense area, a grid sparse area and a grid-free area from the center to two sides along the length direction of the flow pushing section.

Further, the distance between the adjacent grid bars in the grid bar dense area is 80-140mm, and the distance between the adjacent grid bars in the grid bar sparse area is 140-200 mm.

Further, the length of each grid is 800-1200 mm.

The beneficial effects of the utility model reside in that:

the utility model discloses a plurality of grids of arranging in the degree of depth direction of the class section of plug of high density sedimentation tank to from the center to both sides on the length direction of the class section of plug, interval between the adjacent grid is by little grow gradually, dredged by dense change, the coming water along class section width direction of plug is through the grid rectification back of interval difference, the head loss that receives is the same, thereby make rivers evenly distributed on the whole water section of crossing of class section of plug, short-term flow and stagnant water phenomenon can not appear, guarantee the play water quality of water of high density sedimentation tank.

Drawings

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention provides the following drawings for illustration:

FIG. 1 is a top view of a high density settling tank;

FIG. 2 is a top view of a fairing of the high density settling tank;

fig. 3 is a cross-sectional view of fig. 2.

Reference numerals: the device comprises a flocculation area 1, a plug flow section 2, a sedimentation area inlet section 3, a sedimentation area 4, a short flow area 5, a dead water area 6, a grid dense area 7, a grid sparse area 8, a grid-free area 9, grids 10 and a grid 11.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the high-density sedimentation tank in this embodiment comprises a flocculation zone 1, a plug flow section 2, a sedimentation zone inlet section 3 and a sedimentation zone 4, wherein a short flow zone 5 is formed in the middle area of the plug flow section 2 and dead water zones 6 are formed on both sides of the plug flow section 2 in the length direction of the plug flow section 2.

As shown in fig. 2, the direction a is the width direction of the flow pushing section 2, and the direction B is the length direction of the flow pushing section 2. The embodiment provides a rectifying device of a high-density sedimentation tank, which comprises a plurality of grid bars 10 inserted into a plug flow section 2 of the high-density sedimentation tank along the depth direction of the plug flow section 2, wherein the distance between every two adjacent grid bars 10 gradually increases from the center to two sides along the length direction of the plug flow section 2; the distance between the adjacent grid bars 10 is not changed along the width direction of the flow pushing section 2; from the center to two sides along the length direction of the flow pushing section 2, the flow pushing section 2 is divided into a grid 10 dense area 7, a grid 10 sparse area 8 and a grid 10 free area 9, wherein the distance between the adjacent grids 10 of the grid 10 dense area 7 is 80-140mm, the distance between the adjacent grids 10 of the grid 10 sparse area 8 is 140-200mm, and the length of each grid 10 is 800-1200 mm. As shown in fig. 3, each of the grills 10 is disposed at the middle upper part of the flow pushing section 2 in the depth direction; two ends of each grid bar 10 are vertically connected with a grid mesh 11, and the grid meshes 11 are fixed on the inner wall of the plug flow section 2.

From the center to both sides in the length direction of plug flow section 2, the interval between adjacent grid 10 is gradually by little grow, by dense change sparse, behind the grid 10 rectification of the incoming water of 2 width directions of plug flow section through the interval difference, the head loss that receives is the same to make rivers evenly distributed on the whole water cross section of plug flow section 2, can not appear short-flow and stagnant water phenomenon, guarantee the play water quality of water of high density sedimentation tank.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The rectifying device is characterized by comprising a plurality of grid bars inserted in the depth direction of a flow pushing section of the high-density sedimentation tank, and the distance between every two adjacent grid bars is gradually increased from the center to two sides along the length direction of the flow pushing section.

2. The flow straightener for a high density settler according to claim 1, wherein the spacing between adjacent grate bars is constant across the width of the plug flow section.

3. The rectifying device for a high density sedimentation tank according to claim 1, wherein each of the grills is disposed at an upper middle portion in a depth direction of the plug flow section.

4. The rectifying device for high-density sedimentation tanks according to claim 1, wherein the grids are vertically connected to both ends of each grid and fixed to the inner wall of the plug flow section.

5. The rectifying device for high-density sedimentation tanks according to any one of claims 1 to 4, wherein the plug flow section is divided into a grid dense region, a grid sparse region and a grid-free region from the center to both sides in the length direction of the plug flow section.

6. The rectifying device for high-density sedimentation tank according to claim 5, wherein the interval between the adjacent grid bars in the grid bar dense area is 80-140mm, and the interval between the adjacent grid bars in the grid bar sparse area is 140-200 mm.

7. The draft gear for a high density sedimentation tank according to claim 1, wherein the length of each of the grills is 800-1200 mm.