CN103774742A - Drainage pipeline grating device - Google Patents
Drainage pipeline grating device Download PDFInfo
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- CN103774742A CN103774742A CN201410004396.7A CN201410004396A CN103774742A CN 103774742 A CN103774742 A CN 103774742A CN 201410004396 A CN201410004396 A CN 201410004396A CN 103774742 A CN103774742 A CN 103774742A
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Abstract
The invention discloses a drainage pipeline grating device. The drainage pipeline grating device comprises a water body filtering area with a water inlet pipeline and a water outlet pipeline. A grating cylinder with the vertical axis is arranged in the water body filtering area. The grating cylinder is provided with a tangent inlet communicated with the water inlet pipeline and a grating net arranged on the peripheral wall of the grating cylinder. The grating cylinder serves as a filtering structure, and therefore the defect that impurities easily adhere to an existing straight-flow type filter screen is overcome; the tangent inlet is formed, a water body forms rotational flow in the grating cylinder, and therefore the water flow direction is parallel and tangent to the cylinder wall, the impurities can not adhere to screen holes of the cylinder wall, and the problems that the water filtering area is sharply narrowed due to impurity adhesion, flowing is not smooth, and water overflows out of the water inlet of the water inlet pipeline are solved.
Description
Technical field
The present invention relates to a kind of urban sewerage and drainage system, particularly a kind of drainage pipe grid device.
Background technology
Suspension is one of important pollutant in rainfall runoff, especially the impurity such as leaf, fiber (hair, fabric), paper, these suspensions are not only given the serious threat of knowing clearly of receiving water body water quality band, on the other hand, entering also of these impurity caused very large negative effect to the view of water body.Therefore, drainage pipeline networks moderate rain, sewage, before row river, carry out effective removal of suspension and dam, and are significant to reducing receiving water body water pollution and landscape destruction.
In developed country, in order to solve the pollution problem of segregation system storm-water system early-stage rainwater, carry out a large amount of early-stage rainwater pollution control technology research, research and develop the early-stage rainwater end treating apparatus of many forms, such as Flogard, Hydro StormTrain series of products, Stormfilter, Highland Tank's Solids etc., these devices not only can effectively be removed the bulky grain such as leaf, fiber suspension, small particle diameter suspended particulate is also had to good removal effect simultaneously, therefore become the Main Means that draining purifies.But these technology are in the time removing in rainwater bulky grain suspension, what mainly adopt is netted Hanging Basket, the removing method of mesh grille, or adopt the cleaning principles such as filtration, although bulky grain suspended impurity and small particle diameter suspended particulate are had to good removal effect, but the larger suspension long-term accumulated such as leaf, fiber is at Hanging Basket or grid place, or filtration beds surface, after long-term operation, certainly will cause the assembly such as filter screen, grid conveyance capacity to reduce even and stop up, thereby draining safety has been caused to very large threat.
In order to address the above problem, there is researcher to propose a kind of anticlogging filter, notification number is that the patent documentation of CN202430821U discloses a kind of catch pit cleaning and filtering device, this catch pit cleaning and filtering device, mainly formed by framework and filter screen, this framework is grid type, make cylindrical shape or the square tube shape of end uncovered, and the diameter of this columnar framework is more smaller than the internal diameter of circular row well, the height of framework is less than the degree of depth of catch pit, framework is the height lower than drainage pipe catch pit planted agent, bottom and surrounding at this framework are covered dress filter screen, at ring or the hinged mounting knob of bearing pin for top of framework.
And publication number CN102127929A invention is a kind of rainwater well grid cleaning device that is used for preventing nozzle blocking under catch-basin, when this invention can effectively prevent from raining, grid cover plate stops up, protection urban environmental hygiene.
The invention of another kind of publication number CN102691350A is a kind of plain type slip grid anti-blocking rain water mouth, mainly comprise inlet for stom water body and cover for rain, this invention inlet for stom water that quick-recovery is stopped up by foreign material soon, make it recover water inlet ability, realize fast transport road rain water, reduce excess surface water between storm period.
But said apparatus or filter screen is set under well lid or directly carries out water body filtration by well lid, water body is all vertical impact filtering surface, impurity is easy to enter the mesh of screen pack and causes screen pack to stop up, cause the filter effect of screen pack to decline, or need often screen pack to be cleared up labor intensive.
Summary of the invention
The invention discloses a kind of drainage pipe grid device, to solve in prior art, screen pack easily stops up, and needs the problem of frequent cleaning.
A kind of drainage pipe grid device, comprise the water body filtration district with inlet channel and outlet conduit, in described water body filtration district, be provided with the vertically arranged grid cylinder of axis, grid cylinder has the tangential inlet being communicated with inlet channel, and is arranged on the grid of perisporium.
With the pipeline that described tangential inlet is connected, the part tube wall of pipeline and the barrel of grid cylinder are tangent, thereby make the water body that enters grid cylinder along pipeline from tangential inlet form eddy flow in the barrel of cartridge type grid.
When work, the a small amount of effluent stream in ground is as the inlet channel of said apparatus, the sewage that flow is less, impurity is more enters grid cylinder from the tangential inlet being communicated with inlet channel, current flow along barrel, form eddy flow fluidised form, flow direction is parallel tangent with the barrel of grid cylinder, and water body is filtered to water body filtration district from the mesh of grid cylinder.
Current form eddy flow, make impurity in sewage under rotary water current effect, collect to centre, produce the effect of Separation of Solid and Liquid, and like this, not only the impurity larger than the mesh of grid cylinder has obtained removal, equally also can effectively remove than the suspension that mesh is little.
Meanwhile, impurity is along with the flow direction of current is parallel with grid wall surface tangent, and the barrel that impurity can vertical impact grid cylinder, avoids impurity to adhere in the mesh of grid cylinder and stop up mesh, has guaranteed the normal filter capacity of grid cylinder.
In order to make current horizontal direction enter grid cylinder, preferred, the water (flow) direction of the water outlet of described inlet channel is mutually vertical with the axis of described grid cylinder.
In order to increase filter area, make sewage in inlet channel enter grid cylinder and filter, preferred, described inlet channel is communicated to the middle part of grid cylinder.
In guaranteeing inflow, in order to improve eddy flow effect, preferred, the central angle angle in the relative grid cylinder of described tangential inlet axle center is 70 degree～80 degree.Described angle too small, tangential inlet is narrow, and inflow is little, is unfavorable for draining; Described angle is excessive, and the current major part that can make to enter grid cylinder from the tangential inlet barrel of cannot fitting, declines the eddy flow degree of current, filter effect variation.
For in the time that sewage quantity is larger, current are discharged fast, preferred, described tangential inlet is communicated to inlet channel by the transition conduit being arranged in water body filtration district, and the top of described transition conduit has overfall.
When the discharge of inlet channel is larger, when water level exceeds the height of overfall, excessive water can be from overfall overflow, directly do not enter water body filtration district by grid cylinder, to outlet conduit discharge, avoid the impact of large flow to barrel, also can guarantee drainage efficiency simultaneously.
In order to make the present invention have larger filtration yield, preferred, the end of described overfall, is along flushing with the edge, top of inlet channel.Only have in the time that discharge is excessive, sewage just can directly enter water body filtration district from overfall.
In order to improve sewage water filtration amount and filter effect, preferred, described grid cylinder is provided with two, both tangential inlet access in parallel inlet channels.
In order to reduce horizontal area of the present invention, preferred, the transition conduit of described two grid cylinders is arranged side by side, and mutually reclines.
For the impurity in convenient recovery and cleaning grid cylinder, preferred, the bottom of described grid cylinder is connected with dismountable netted foreign material basket.Impurity finally focuses on behind the middle part of grid cylinder under long-term cyclonic action, falls into the netted foreign material basket of the bottom that is located at grid cylinder, dismantles netted foreign material basket, foreign material can be got rid of and cleaning.
Preferably, described inlet channel and outlet conduit are oppositely arranged in the horizontal direction.
The invention has the beneficial effects as follows:
Drainage pipe grid device of the present invention, by filtration being arranged to grid cylinder, change the shortcoming that the foreign material of original single flow grid are easy to adhere to, by tangential inlet is set, make water body form eddy flow in grid cylinder, make water (flow) direction parallel with barrel tangent, impurity cannot be attached in the mesh of barrel, avoid having caused drainage area to fall sharply because impurity adheres to, caused flowing not smooth, the problem that causes the water inlet of inlet channel to overflow.Meanwhile, the present invention, by overfall is set, makes great deal running water directly enter the discharge of water body filtration district by overfall, without grid cylinder, thereby can realize safety dumping runoff peak flood flow, also avoid the hydraulic blow of the barrel to grid cylinder, improve the application life of equipment.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention.
Fig. 2 is the cross-sectional view of another angle of the present invention.
The specific embodiment
As depicted in figs. 1 and 2, the drainage pipe grid device of the present embodiment comprises: with the water body filtration district 3 of inlet channel 1 and outlet conduit 2, inlet channel 1 and outlet conduit 2 are oppositely arranged in the horizontal direction.
In water body filtration district 3, be provided with axis vertically arranged, structure identical and two grid cylinders 4, each grid cylinder 4 has 41, two tangential inlets of the tangential inlet 41 access in parallel inlet channels that are communicated with inlet channel 1.Each grid cylinder 4 is provided with grid at perisporium, and mesh is used for filtering the liquid in water body.
Each tangential inlet 41 is communicated to inlet channel 1 by the transition conduit 5 being arranged in water body filtration district, and in order to reduce the horizontal area of the present embodiment, two transition conduit 5 are arranged side by side, and mutually recline.
For in the time that sewage quantity is larger, current are discharged fast, have overfall 51 at the top of transition conduit 5, the end of overfall 51, is along flushing with the edge, top of inlet channel 1.
In order to make current horizontal direction enter grid cylinder 4, the water (flow) direction of the water outlet of inlet channel 1 is mutually vertical with the axis of grid cylinder 1.In order to increase filter area, make sewage in inlet channel enter grid cylinder 1 and filter, inlet channel 1 is communicated to the middle part of grid cylinder 4.
In guaranteeing inflow, in order to improve eddy flow effect, the central angle angle in tangential inlet 41 relative grid cylinder 4 axle center is 70 degree～80 degree.In the time of this angle too small, tangential inlet is narrow, and inflow is little, is unfavorable for draining; Excessive when this angle, the current major part that can make to enter grid cylinder from the tangential inlet barrel of cannot fitting, declines the eddy flow degree of current, filter effect variation.Therefore, in the present embodiment, this central angle angle is 75 degree.
Be connected with dismountable netted foreign material basket 6 in the bottom of each grid cylinder 4, the impurity filtering for collecting grid cylinder 4.Impurity finally focuses on behind the middle part of grid cylinder 4 under long-term cyclonic action, falls into the netted foreign material basket 6 of the bottom that is located at grid cylinder 4, dismantles netted foreign material basket 6, foreign material can be got rid of and cleaning.
The present embodiment course of work:
When the discharge of sewage less, while being less than the peak level of inlet channel 1, sewage enters grid cylinder 4 from the tangential inlet 41 being communicated with inlet channel 1, current flow along barrel, direction indication along arrow forms eddy flow fluidised form, flow direction is parallel tangent with the barrel of grid cylinder 4, is filtered to water body filtration district 3 along the direction indication water body of arrow from the mesh of grid cylinder.
And it is larger to work as the discharge of sewage, while being greater than the peak level of inlet channel, excessive sewage can be from overfall 51 overflows, directly do not enter water body filtration district 3 by grid cylinder 4, discharge to outlet conduit 2, avoid the impact of large flow to barrel, also can guarantee drainage efficiency simultaneously.
The drainage pipe grid device of the present embodiment, by filtration being arranged to grid cylinder 4, change the shortcoming that the foreign material of original single flow screen pack are easy to adhere to, by tangential inlet 41 is set, make water body at the interior formation eddy flow of grid cylinder 4, make water (flow) direction parallel with barrel tangent, impurity cannot be attached in the mesh of barrel, avoid having caused drainage area to fall sharply because impurity adheres to, caused flowing not smooth, the problem that causes the water inlet of inlet channel to overflow.Meanwhile, the present invention, by overfall 51 is set, makes great deal running water directly enter the discharge of water body filtration district by overfall 51, without grid cylinder, thereby can realize safety dumping runoff peak flood flow, also avoid the hydraulic blow of the barrel to grid cylinder 4, improve the application life of equipment.
Claims (10)
1. a drainage pipe grid device, comprise the water body filtration district with inlet channel and outlet conduit, it is characterized in that, in described water body filtration district, be provided with the vertically arranged grid cylinder of axis, grid cylinder has the tangential inlet being communicated with inlet channel, and is arranged on the grid of perisporium.
2. drainage pipe grid device as claimed in claim 1, is characterized in that, the water (flow) direction of the water outlet of described inlet channel is mutually vertical with the axis of described grid cylinder.
3. drainage pipe grid device as claimed in claim 1, is characterized in that, described inlet channel is communicated to the middle part of grid cylinder.
4. drainage pipe grid device as claimed in claim 1, is characterized in that, the central angle angle in the relative grid cylinder of described tangential inlet axle center is 70 degree～80 degree.
5. drainage pipe grid device as claimed in claim 4, is characterized in that, described tangential inlet is communicated to inlet channel by the transition conduit being arranged in water body filtration district, and the top of described transition conduit has overfall.
6. drainage pipe grid device as claimed in claim 5, is characterized in that, the end of described overfall is along flushing with the edge, top of inlet channel.
7. drainage pipe grid device as claimed in claim 5, is characterized in that, described grid cylinder is provided with two, both tangential inlet access in parallel inlet channels.
8. drainage pipe grid device as claimed in claim 7, is characterized in that, the transition conduit of described two grid cylinders is arranged side by side, and mutually reclines.
9. drainage pipe grid device as claimed in claim 1, is characterized in that, the bottom of described grid cylinder is connected with dismountable netted foreign material basket.
10. drainage pipe grid device as claimed in claim 1, is characterized in that, described inlet channel and outlet conduit are oppositely arranged in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410004396.7A CN103774742B (en) | 2014-01-02 | 2014-01-02 | Drainage pipeline grating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410004396.7A CN103774742B (en) | 2014-01-02 | 2014-01-02 | Drainage pipeline grating device |
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| Publication Number | Publication Date |
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| CN103774742A true CN103774742A (en) | 2014-05-07 |
| CN103774742B CN103774742B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410004396.7A Active CN103774742B (en) | 2014-01-02 | 2014-01-02 | Drainage pipeline grating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089135A (en) * | 2015-09-16 | 2015-11-25 | 江苏河马井股份有限公司 | Pre-mounted rainwater treatment device |
| CN108560482A (en) * | 2018-04-21 | 2018-09-21 | 肖国选 | Anti-blocking sewage pipe road junction |
| CN109603243A (en) * | 2019-01-31 | 2019-04-12 | 浙江大学 | A kind of drainage pipeline grid device of chevaux-de-frise face blocking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6241881B1 (en) * | 1997-11-21 | 2001-06-05 | University Of South Australia | Pollution separator and filtration apparatus |
| KR20100114733A (en) * | 2009-04-16 | 2010-10-26 | 충주대학교 산학협력단 | Vortex trap apparatus |
| CN102392487A (en) * | 2011-11-18 | 2012-03-28 | 江苏大学 | Pollutant separation device of rainwater and sewage pipeline |
| KR20120095767A (en) * | 2011-04-08 | 2012-08-29 | 한일환경기술(주) | Non-point contaminants purification system for treating first rain |
| CN203795573U (en) * | 2014-01-02 | 2014-08-27 | 浙江大学 | Drainage pipeline grid device |
-
2014
- 2014-01-02 CN CN201410004396.7A patent/CN103774742B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6241881B1 (en) * | 1997-11-21 | 2001-06-05 | University Of South Australia | Pollution separator and filtration apparatus |
| KR20100114733A (en) * | 2009-04-16 | 2010-10-26 | 충주대학교 산학협력단 | Vortex trap apparatus |
| KR20120095767A (en) * | 2011-04-08 | 2012-08-29 | 한일환경기술(주) | Non-point contaminants purification system for treating first rain |
| CN102392487A (en) * | 2011-11-18 | 2012-03-28 | 江苏大学 | Pollutant separation device of rainwater and sewage pipeline |
| CN203795573U (en) * | 2014-01-02 | 2014-08-27 | 浙江大学 | Drainage pipeline grid device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089135A (en) * | 2015-09-16 | 2015-11-25 | 江苏河马井股份有限公司 | Pre-mounted rainwater treatment device |
| CN108560482A (en) * | 2018-04-21 | 2018-09-21 | 肖国选 | Anti-blocking sewage pipe road junction |
| CN109603243A (en) * | 2019-01-31 | 2019-04-12 | 浙江大学 | A kind of drainage pipeline grid device of chevaux-de-frise face blocking |
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| Publication number | Publication date |
|---|---|
| CN103774742B (en) | 2015-06-24 |
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