CN202324177U - Rotational flow grit type overflow well - Google Patents
Rotational flow grit type overflow well Download PDFInfo
- Publication number
- CN202324177U CN202324177U CN2011203734155U CN201120373415U CN202324177U CN 202324177 U CN202324177 U CN 202324177U CN 2011203734155 U CN2011203734155 U CN 2011203734155U CN 201120373415 U CN201120373415 U CN 201120373415U CN 202324177 U CN202324177 U CN 202324177U
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- overflow
- well
- overflow well
- rotational flow
- sediment
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Abstract
The utility model relates to a rotational flow grit type overflow well comprising a water inlet pipe, a rotational flow baffle, a filter screen, an overflow pipe, a multistage inclined water fall platform, an overflow well body, an intercepting sewer, and a simple stage. According to the rotational flow grit type overflow well provided by the utility model, a rotational flow principle that the rotational flow baffle and the filter screen are arranged in the traditional overflow well is adopted to make the water flow state in the overflow well changed, so particulate pollutants and floating objects in rain sewage can be effectively intercepted. The rotational flow grit type overflow well provided by the utility model aims to enhance the sedimentation performance of particulate pollutants, such as muddy sand and the like in rain sewage of cities, reduce the concentration of the particulates in overflow water, and improve the water quality of overflow receiving water.
Description
Technical field
The utility model relates to sediment by rotational flow formula overflow well; Divide the fixed buildings portion that belongs to by International Patent Classification (IPC) (IPC), building branch, big type of feedwater, draining; Sewer, sink hole group mainly comprise stopped flow technique, sediment by rotational flow technology, hybrid separation technology etc.
Background technology
Overflow well is as structure a kind of commonly used and system's hinge in the interflow formula sewerage pipeline network that dams, because of the restriction that receives factors such as geographical position, the amount of damming has significant Special Significance and importance.At present, in municipal engineering designs, have clear and definite design considerations and the sewage overflow well principal mode that calculates check method three kinds of weir formula overflow well, slot type overflow well and groove weir convolution overflow wells are arranged.Three kinds of overflow wells have advantage separately, but all ubiquity is a bit not enough, are exactly that because combined flow is big, flow velocity is high in heavy rain season, and the current turbulent flow is obvious in the overflow well, the particulate pollutant poor effect of damming in the water body of interflow, and SS is higher in the overflow water body.And correlative study shows, COD concentration and SS concentration are proportionate in the sewage, and SS increases, and it is big that COD becomes thereupon.In addition, to occupy ratio very little for dissolubility COD in the waste water, and most COD derive from particulate pollutant.And now when overflow well is designed and constructed, the emphasis of consideration is how to strengthen interception ratio, reduces spillway discharge, does not pay attention to how improving overflow water quality.
Summary of the invention
The utility model problem to be solved provides a kind of sediment by rotational flow formula overflow well, remedies the deficiency of mentioning in the background technology.
The utility model comprises water inlet pipe, eddy flow baffle plate, screen pack, bleed off pipe, multistage inclination drop platform, overflow well well body and intercepting sewer, and described overflow well well body is cylindrical, and bottom one side is provided with multistage inclination drop platform; Water inlet pipe is installed in overflow well well body one side, and is tangent with overflow well well body; Said eddy flow baffle plate is circular-arc, is located in the overflow well well body, and the upper end flushes with overflow well well body top; The lower end is higher than multistage inclination drop platform; Overflow well well body inside is divided into the space that two bottoms link to each other, sediment by rotational flow district and free settling zone, eddy flow baffle plate one end and water inlet pipe are tangent; Bleed off pipe radially is installed in overflow well well body opposite side, and is parallel with water inlet pipe, highly is lower than water inlet pipe, and the overflow exit of bleed off pipe is provided with screen pack; Intercepting sewer radially is installed in overflow well well body side surface, and axially vertical with water inlet pipe, the intercepting sewer height is lower than bleed off pipe, and the minimum point of intercepting sewer is higher than the peak of multistage inclination drop platform.Multistage inclination drop platform is the 2-3 level.Simple and easy ladder is installed on the overflow well well body inwall of sediment by rotational flow district one side.
By the sediment by rotational flow formula overflow well that such scheme constitutes, interception ratio is high, and the particulate pollutant removal effect is obvious, has solved the deficiency of traditional overflow well effectively.In addition, this utility model is simple in structure, easy construction, thus saved a large amount of construction investments.
Description of drawings
Fig. 1 is the vertical view of sediment by rotational flow formula overflow well.
Fig. 2 is the A-A sectional drawing of sediment by rotational flow formula overflow well.
Wherein, 1-water inlet pipe, 2-eddy flow baffle plate, 3-screen pack, 4-bleed off pipe, the multistage inclination drop of 5-platform, 6-overflow well well body, 7-intercepting sewer, 8-sediment by rotational flow district, the free settling zone of 9-, the simple and easy ladder of 10-.
The specific embodiment
Be described further below in conjunction with accompanying drawing 1 and 2 pairs of the utility model of accompanying drawing:
Shown in accompanying drawing; This utility model mainly is made up of overflow well well body 6, water inlet pipe 1, bleed off pipe 4 and intercepting sewer 7; Be provided with eddy flow baffle plate 2 and multistage inclination drop platform 5 in the overflow well well body 6; Overflow well well body 6 inner spaces are divided into the zone that two bottoms link to each other, sediment by rotational flow district 8 and free settling zone 9, the overflow exit mounting filtering net 3 of bleed off pipe 4.When fine; Combined sewage is a municipal wastewater, mainly is resident living sewage and a part of commercial water, and water yield minimum velocity was slow when sewage got into overflow well well body 6 by water inlet pipe 1; Sewage directly drops to multistage inclination drop platform 5; Finally be compiled in overflow well well body 6 bottoms through repeatedly falling, the water level height is during to intercepting sewer 7, by intercepting sewer 7 outputs.In the falling process, sewage obtains effective oxygenation, has suppressed the anaerobic fermentation in the course of conveying to a certain extent.During the rainy day, a large amount of rainwater get into the interflow pipe network through surface flow, are mixed into overflow well with municipal wastewater, and water yield size and flow rate of water flow are different and different with the rainfall period.At the rainfall initial stage, flow rate of water flow is slow, and the water yield is less, and combined sewage falls into the shaft bottom soon along eddy flow baffle plate 2.With the propelling in Pluvial, combined flow and flow velocity become greatly gradually, after sewage gets into overflow well well body 6 by water inlet pipe 1, along the overflow well well body 6 spiral inner walls decline of eddy flow baffle plate 2 and sediment by rotational flow district 8 one sides.In the decline process; Bigger particulate pollutant receives cyclonic action to be gathered in eddy flow water column center to sink soon; Overflow well well body 6 bottoms are slipped on inclined plane along multistage inclination drop platform 5; Sewage part in the sediment by rotational flow district 8 is by intercepting sewer 7 outputs, and another part is along freedom of entry settling zone, eddy flow baffle plate 2 bottom 9.The bottom-up motion of sewage in the free settling zone 9, streamflow regime is steady relatively.In the process that current rise, because the action of gravity of self, residual smaller particles pollutant can be precipitated to overflow well well body 6 bottoms in the sewage.Overflow well well body 6 bottom water flow are steady, and the silt particle after the sedimentation is difficult for being stirred, and particulate pollutant is less in the sewage of entering intercepting sewer 7, and therefore the pipeline deposit also reduces.When the water body water surface in the overflow well reaches bleed off pipe 4 mouths of pipe, overflow takes place, the screen pack 3 that is installed in bleed off pipe 4 mouths of pipe can be held back the floating thing in the water body effectively, like leaf etc.When overhauling with desilting to overflow well, the staff can carry out the work in well for 10 times along simple and easy ladder.This sediment by rotational flow formula overflow well interception ratio is higher, and the city combined sewage is through its sediment by rotational flow, freely precipitate and filtration, and the overflow water body is effectively purified, and ducted deposit also significantly reduces.
Claims (4)
1. sediment by rotational flow formula overflow well; It is characterized in that; Comprise water inlet pipe (1), eddy flow baffle plate (2), bleed off pipe (4), multistage inclination drop platform (5), overflow well well body (6) and intercepting sewer (7), described overflow well well body (6) is cylindrical, and bottom one side is provided with multistage inclination drop platform (5); Water inlet pipe (1) is installed in overflow well well body (6) one sides, and is tangent with overflow well well body (6); Said eddy flow baffle plate (2) is circular-arc; Be located in the overflow well well body (6); The upper end flushes with overflow well well body (6) top, and the lower end is higher than multistage inclination drop platform (5), and overflow well well body (6) inside is divided into the space that two bottoms link to each other; Sediment by rotational flow district (8) and free settling zone (9), eddy flow baffle plate (2) one ends and water inlet pipe (1) are tangent; Bleed off pipe (4) radially is installed in overflow well well body (6) opposite side, and is parallel with water inlet pipe (1), highly is lower than water inlet pipe (1); Intercepting sewer (7) radially is installed in overflow well well body (6) side, and axially vertical with water inlet pipe (1), intercepting sewer (7) highly is lower than bleed off pipe (4), and the minimum point of intercepting sewer (7) is higher than the peak of multistage inclination drop platform (5).
2. sediment by rotational flow formula overflow well according to claim 1 is characterized in that: the overflow exit of said bleed off pipe (4) is provided with screen pack (3).
3. sediment by rotational flow formula overflow well according to claim 1 is characterized in that: said multistage inclination drop platform (5) is the 2-3 level.
4. sediment by rotational flow formula overflow well according to claim 1 is characterized in that: simple and easy ladder (10) is installed on overflow well well body (6) inwall of said sediment by rotational flow district (8) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203734155U CN202324177U (en) | 2011-09-30 | 2011-09-30 | Rotational flow grit type overflow well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203734155U CN202324177U (en) | 2011-09-30 | 2011-09-30 | Rotational flow grit type overflow well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202324177U true CN202324177U (en) | 2012-07-11 |
Family
ID=46436160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203734155U Expired - Fee Related CN202324177U (en) | 2011-09-30 | 2011-09-30 | Rotational flow grit type overflow well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202324177U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334485A (en) * | 2013-07-05 | 2013-10-02 | 浙江大学 | Suspended matter separating well for separate system rainwater drainage system |
| CN103726570A (en) * | 2014-01-24 | 2014-04-16 | 重庆大学 | Spiral-flow type hydraulically controlled rainwater intercepting and abandoning switch well system |
| CN105421577A (en) * | 2015-12-23 | 2016-03-23 | 山东大学 | Initial rainwater treatment system |
-
2011
- 2011-09-30 CN CN2011203734155U patent/CN202324177U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334485A (en) * | 2013-07-05 | 2013-10-02 | 浙江大学 | Suspended matter separating well for separate system rainwater drainage system |
| CN103334485B (en) * | 2013-07-05 | 2015-06-03 | 浙江大学 | Suspended matter separating well for separate system rainwater drainage system |
| CN103726570A (en) * | 2014-01-24 | 2014-04-16 | 重庆大学 | Spiral-flow type hydraulically controlled rainwater intercepting and abandoning switch well system |
| CN103726570B (en) * | 2014-01-24 | 2015-07-08 | 重庆大学 | Spiral-flow type hydraulically controlled rainwater intercepting and abandoning switch well system |
| CN105421577A (en) * | 2015-12-23 | 2016-03-23 | 山东大学 | Initial rainwater treatment system |
| CN105421577B (en) * | 2015-12-23 | 2017-03-22 | 山东大学 | Initial rainwater treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20120930 |