CN103572826B - The dirty switching device shifter of a kind of rain for segregation system storm sewer - Google Patents
The dirty switching device shifter of a kind of rain for segregation system storm sewer Download PDFInfo
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- CN103572826B CN103572826B CN201210285297.1A CN201210285297A CN103572826B CN 103572826 B CN103572826 B CN 103572826B CN 201210285297 A CN201210285297 A CN 201210285297A CN 103572826 B CN103572826 B CN 103572826B
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Abstract
The invention discloses the dirty switching device shifter of a kind of rain for segregation system storm sewer, the dirty switching device shifter of described rain comprises: the dirt of rainwater water inlet pipe, rain switches well, sewage inspection well, sewage conduct and outlet pipe, it is characterized in that, also comprise: height adjustable stormwater overflow weir, for retain floating thing and lightweight suspension thing scum silica frost floating drum, for retaining the coarse rack of bulky grain and large floating thing, floating drum switches gate and the flap valve for preventing sewage from flowing backward to rainwater water inlet pipe; The present invention is compared with the dirty dividing technology of existing rain, and its cost of investment is low, stable, can continue the suspension in trap water and floating thing, and just can automatically run without the need to outer power-equipment.
Description
Technical field
The present invention relates to rainwater treatment technical field, particularly the dirty switching device shifter of a kind of rain for segregation system storm sewer.
Background technology
In segregation system pipe network system, it is unavoidable that part of contaminated water enters storm sewer, and its main cause has: hybrid junction or the sewage of the dirty pipeline of rain directly enter rain pipe, the sewage access storm sewer of such as household balcony washing machine; Including the sewage of automobile emission, washing away the sewage, wastewater from car washer etc. of building surface discarded object is all the latency polluted water body.In addition, in street, the wearing and tearing rubber etc. of gasoline, fuel and doughnut is also all the factor polluted rainwater.All sewage, waste water entering storm sewer, all can pollute receiving water body.
City initial rainwater degree of contamination is higher, and research shows: the early-stage rainwater of front 3mm, and COD value is about 400mg/l, and a large amount of undressed early-stage rainwaters directly enters storage water body, all can cause very large pollution.
The conventional method of contaminated solution is on whole watershed, transform separated drainage system as combined drainage system, or on original sewage conduct basis, builds storm detention tank.Building storm detention tank is a kind of well solution, but the building expense of storm detention tank, running cost and maintenance expense are all very high, and build storm detention tank also needs sizable space simultaneously.
Summary of the invention
For above-mentioned problems of the prior art, the object of the invention is: provide a kind of with low cost, compact conformation, installing space are little and can retain the dirty switching device shifter of rain of the heavier early-stage rainwater of degree of contamination, to solve problems of the prior art.
The technical solution adopted for the present invention to solve the technical problems is:
The dirty switching device shifter of a kind of rain for segregation system storm sewer, the dirty switching device shifter of described rain comprises: rainwater water inlet pipe, rain dirt switches well, sewage inspection well, sewage conduct and outlet pipe, it is characterized in that, also comprise: height adjustable stormwater overflow weir, for retaining the scum silica frost floating drum of floating thing and lightweight suspension thing, for retaining the coarse rack of bulky grain and large floating thing, floating drum switches gate and the flap valve for preventing sewage from flowing backward to rainwater water inlet pipe, described stormwater overflow weir is stand vertically one water-stop sheet switching close outlet pipe position in well in rain dirt, described scum silica frost floating drum is arranged on front, described stormwater overflow weir, and both sides are respectively provided with a transfer arm, one end of described transfer arm connects scum silica frost floating drum, the other end is fixed on rain dirt and switches on the wall of well conduit both sides, described rain dirt switches well near the side of water inlet, be provided with a chute, and the water inlet of described chute is provided with a coarse rack, described sewage inspection well is connected by a connecting pipe with dirty the switching between well of described rain, and rainwater flows into described communicating pipe by described chute, thus enters described sewage inspection well, opening part was provided with a floating drum and switched gate, and at the other end be connected with described sewage inspection well, opening part is provided with a flap valve in the one end switching well and be connected dirty with described rain described communicating pipe, described floating drum switches gate and comprises: floating drum, transmission arm, transmission device and brake lining, described floating drum is connected with described transmission device by transmission arm, and described transmission device inside is provided with gear combination, is connected with described brake lining by gears meshing.
Described stormwater overflow weir adopts one piece of corrosion resistant plate to be erected in described rain dirt switching well, and its height can regulate.
Described coarse rack adopts the anticorrosion or stainless steel material of carbon steel, and Grill space is 30mm-50mm, can prevent large particulate matter from entering sewage inspection well from tube connector.
Described scum silica frost floating drum is a hollow stainless steel closed cylinder, can bubble through the water column, and between described cylinder and dirty two walls switching well of described rain, all leave the gap of 100mm-150mm, and described gap adopts the corrosion resistant plate of two respective width to block, thus avoid scum silica frost to pass through from gap.
The floating drum that described floating drum switches in gate is a hollow stainless steel closed cylinder, can bubble through the water column.
Transmission arm one end that described floating drum switches in gate is fixedly connected with described floating drum, the other end is a gear, and by being connected with described brake lining with the gears meshing that described transmission device inside is arranged, and rotated by transmission arm driven gear in floating drum moves up and down, and drive brake lining to move up and down by described transmission device, thus control the switch that floating drum switches gate.
The width of described brake lining and the caliber of described tube connector adapt, and can block the water inlet of described tube connector when brake lining all puts down completely.
The invention has the beneficial effects as follows: the present invention is compared with the dirty dividing technology of existing rain, its cost of investment is low, stable, the suspension in trap water and floating thing can be continued, and just can automatically run without the need to outer power-equipment, run and also can not produce any expense, required installing space is little, can install in narrow and small building, can be applicable in existing or newly-built storm sewer.
Accompanying drawing explanation
Fig. 1 is the dirty switching device shifter structural representation of rain;
Fig. 2 is that floating drum switches gate duty (initial position) schematic diagram;
Fig. 3 is that floating drum switches gate duty (early-stage rainwater) schematic diagram;
Fig. 4 is that floating drum switches gate duty (middle and later periods rainwater) schematic diagram;
Fig. 5 is that floating drum switches gate duty (playback state) schematic diagram.
Wherein, the dirt of 1-rain switches well, 2-rainwater water inlet pipe, 3-coarse rack, 4-floating drum switching gate, 5-communicating pipe, 6-sewage inspection well, 7-sewage conduct, 8-flap valve, 9-scum silica frost floating drum, 10-stormwater overflow weir, 11-outlet pipe.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Shown in Fig. 1 is the integrally-built schematic diagram of the dirty switching device shifter of rain of the present invention, the dirty switching device shifter of described rain comprises: the dirt of rainwater water inlet pipe 2, rain switches well 1, sewage inspection well 6, sewage conduct 7 and outlet pipe 11, it is characterized in that, also comprise: height adjustable stormwater overflow weir 10, for retain floating thing and lightweight suspension thing scum silica frost floating drum 9, for retaining the coarse rack 3 of bulky grain and large floating thing, floating drum switches gate 4, flap valve 8 and tube connector 5 for preventing sewage from flowing backward to rainwater water inlet pipe.
The relation of the dirty switching device shifter brake lining open degree of rain and water level, along with the lifting of water level, reduces until close completely gradually.Open degree represents inflow-rate of water turbine, and the relation of its inflow-rate of water turbine and water level is as follows:
Water level is when 0 ~ h1: inflow-rate of water turbine linearly changes with water level, starts from scratch and is increased to design inflow-rate of water turbine.
Water level is when h1 ~ h2: inflow-rate of water turbine is substantially constant with the lifting of water level.
Water level is when h2 ~ h3: inflow-rate of water turbine reduces gradually with the lifting of water level, until be zero.
Water level is when h3 ~ h4: inflow-rate of water turbine is zero.
Wherein:
The scope of h1 is probably at about 1/2 of diameter;
The scope of h2 is probably at about 3/4 of diameter;
The scope of h3 determines according to the amount of the early-stage rainwater retained;
H4 is the maximum stage of design.
Embodiment: in certain central city, city, the Landscape River (or lake) in municipal government's infusion of financial resources Governance Centre region, the storm sewer of a DN1000 is wherein had directly to enter river course (or lake), this storm sewer belongs to segregation system, but by the dirty hybrid junction of rain, balcony washing machine sewage access storm sewer, road surface car-washing sewage flows into sewage conduct.Also have dry season a small amount of sewage in line enter river course (or lake), according to measured data, the COD of early-stage rainwater also reaches 400mg/l.According to above-mentioned two problems, improving technique is as follows:
Transform in the previous manhole of storm sewer floss hole, the dirty switching device shifter (referring to accompanying drawing one) of a set of rain is installed: a small amount of dry season sewage and early-stage rainwater enter rain dirt by rainwater water inlet pipe (2) and switch well (1), first, after coarse rack (3) removes larger particles, switch gate (4), communicating pipe (5) and flap valve (8) by floating drum and enter sewage inspection well (6), so, a small amount of dry season sewage and early-stage rainwater enter sewage conduct (7), finally enter discharge after Wastewater Treatment Plant's process.Along with the increase of rainwater, the water level that rain dirt switches in well (1) is raised, and floating drum switches gate (4) and closes gradually.Middle and later periods rainwater, after scum silica frost floating drum (9) blocks scum silica frost, after overflowing across stormwater overflow weir (10), finally enters river course through outlet pipe (11).
The nucleus equipment of the dirty switching device shifter of this rain is that floating drum switches gate (4), the floating drum that floating drum switching gate (4) carries and the dirty water level switched in well (1) of rain link, its open degree associates with water level, realizes motorless, full-automatic operation.Its operation conditions is as follows:
When dry season, there is very small amount of sewage, rainwater switches well 1 from rain dirt and flows into, now scum silica frost floating drum 9 is positioned at the bottom of pond, and due to the effect of overflow weir 10, sewage is without scum silica frost floating drum 9, scum silica frost and sewage all switch gate 4 by floating drum and enter sewage inspection well 6, then flow into sewage conduct 7; Now, as shown in Figure 2, the floating drum that floating drum switches gate 4 is positioned at the bottom of pond, and the brake lining that floating drum switches gate 4 is in maximum open degree, and flap valve 8 is opened, and sewage all enters sewage conduct 7, and not overflow enters river course.
In the early stage during rainwater, there is a certain amount of sewage, scum silica frost floating drum 9 is bubbled through the water column, and due to the effect of overflow weir, rain sewage is without scum silica frost floating drum 9, and scum silica frost and sewage all switch gate 4 by floating drum and enters sewage conduct 7; Now, as shown in Figure 3, the floating drum that floating drum switches gate 4 is bubbled through the water column, and is in lower position, and the brake lining open degree that floating drum switches gate 4 reduces gradually, and flap valve 8 is opened, and sewage all enters sewage conduct 7, and not overflow enters river course.
When middle and later periods rainwater, there is a large amount of sewage, now rain dirt switches that water level in well 1 is higher, and scum silica frost floating drum 9 is bubbled through the water column, and is in higher position, scum silica frost due to the effect of scum silica frost floating drum, can not together with sewage overflow to river course; As shown in Figure 4, now, the floating drum that floating drum switches gate 4 is bubbled through the water column, and is in higher position, and floating drum switches the brake lining Close All of gate 4, and flap valve 8 is closed, and the whole overflow of sewage enters river course.
When stopping rainfall, rain dirt switches water level in well 1 and reduces, and scum silica frost floating drum 9 is bubbled through the water column, and is in lower position; As figure 5 illustrates, the brake lining open degree that floating drum switches gate 4 increases gradually, and flap valve 8 is opened, and sewage major part enters sewage conduct, and a small amount of overflow enters river course, is finally returned to original state again.
Rain dirt switches well and takes up an area about 2.5m × 2.5m, and without the need to external power supply, transformation is convenient, and cost is low, stable, sewage in dry season all can be retained, and efficiently retain the early-stage rainwater of front 3mm, greatly reduces the pollution to storage water body.
By above improvement, the effect of enforcement is as follows: 1, dry season hybrid junction sewage all can automatic-diversion closure, avoid in line river course, improve the environment in river course greatly; 2, early-stage rainwater obtains damming to a certain extent, decreases pollution load of overflow during rainy season.
More than display only describes principal character of the present invention and inventive point.Those skilled in the art should understand, and the present invention is not restricted to the described embodiments.Under the prerequisite not departing from point of the present invention and protection domain, the present invention also has various change, and these changes and improvements all will fall in the scope of protection of present invention.The scope of protection of present invention is limited by appending claims and equivalent thereof.
Claims (7)
1. the dirty switching device shifter of the rain for segregation system storm sewer, the dirty switching device shifter of described rain comprises: rainwater water inlet pipe, rain dirt switches well, sewage inspection well, sewage conduct and outlet pipe, it is characterized in that, also comprise: height adjustable stormwater overflow weir, for retaining the scum silica frost floating drum of floating thing and lightweight suspension thing, for retaining the coarse rack of bulky grain and large floating thing, floating drum switches gate and the flap valve for preventing sewage from flowing backward to rainwater water inlet pipe, described stormwater overflow weir is stand vertically one water-stop sheet switching close outlet pipe position in well in rain dirt, described scum silica frost floating drum is arranged on front, described stormwater overflow weir, and both sides are respectively provided with a transfer arm, one end of described transfer arm connects scum silica frost floating drum, the other end is fixed on rain dirt and switches on the wall of well conduit both sides, described rain dirt switches well near the side of water inlet, be provided with a chute, and the water inlet of described chute is provided with a coarse rack, described sewage inspection well is connected by a connecting pipe with dirty the switching between well of described rain, and rainwater flows into described communicating pipe by described chute, thus enters described sewage inspection well, opening part was provided with a floating drum and switched gate, and at the other end be connected with described sewage inspection well, opening part is provided with a flap valve in the one end switching well and be connected dirty with described rain described communicating pipe, described floating drum switches gate and comprises: floating drum, transmission arm, transmission device and brake lining, described floating drum is connected with described transmission device by transmission arm, and described transmission device inside is provided with gear combination, is connected with described brake lining by gears meshing.
2. the dirty switching device shifter of a kind of rain for segregation system storm sewer as claimed in claim 1, is characterized in that, described stormwater overflow weir adopts one piece of corrosion resistant plate to be erected at the dirt of described rain to switch in well, and its height can regulate.
3. the dirty switching device shifter of a kind of rain for segregation system storm sewer as claimed in claim 1, it is characterized in that, described coarse rack adopts the anticorrosion or stainless steel material of carbon steel, and Grill space is 30mm-50mm, can prevent large particulate matter from entering sewage inspection well from tube connector.
4. the dirty switching device shifter of a kind of rain for segregation system storm sewer as claimed in claim 1, it is characterized in that, described scum silica frost floating drum is a hollow stainless steel closed cylinder, can bubble through the water column, and between described cylinder and dirty two walls switching well of described rain, all leave the gap of 100mm-150mm, and described gap adopts the corrosion resistant plate of two respective width to block, thus scum silica frost is avoided to pass through from gap.
5. the dirty switching device shifter of a kind of rain for segregation system storm sewer as claimed in claim 1, it is characterized in that, the floating drum that described floating drum switches in gate is a hollow stainless steel closed cylinder, can bubble through the water column.
6. the dirty switching device shifter of a kind of rain for segregation system storm sewer as claimed in claim 1, it is characterized in that, transmission arm one end that described floating drum switches in gate is fixedly connected with described floating drum, the other end is a gear, and by being connected with described brake lining with the gears meshing that described transmission device inside is arranged, and rotated by transmission arm driven gear in floating drum moves up and down, and drive brake lining to move up and down by described transmission device, thus control the switch that floating drum switches gate.
7. the dirty switching device shifter of a kind of rain for segregation system storm sewer as claimed in claim 1, it is characterized in that, the width of described brake lining and the caliber of described tube connector adapt, and can block the water inlet of described tube connector when brake lining all puts down completely.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210285297.1A CN103572826B (en) | 2012-08-10 | 2012-08-10 | The dirty switching device shifter of a kind of rain for segregation system storm sewer |
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| CN201210285297.1A CN103572826B (en) | 2012-08-10 | 2012-08-10 | The dirty switching device shifter of a kind of rain for segregation system storm sewer |
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| CN103572826B true CN103572826B (en) | 2016-02-10 |
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| CN105672463A (en) * | 2016-03-07 | 2016-06-15 | 济创环保工程（苏州）有限公司 | Unpowered current-limiting intelligent intercepting well with partition board dreg retaining device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902477A (en) * | 1997-04-30 | 1999-05-11 | John Vena | Combined sewer overflow and storm water diverter screen |
| CN1443959A (en) * | 2003-04-08 | 2003-09-24 | 深圳市金达莱环保有限公司 | Non-electric automatic control water-discharging valve capable of preventing gas from being sucked |
| CN101660319A (en) * | 2009-09-28 | 2010-03-03 | 重庆大学 | Initial stage rain water flow discharging device |
| CN101666116A (en) * | 2009-07-27 | 2010-03-10 | 重庆大学 | Drainage system used in cities, towns and communities |
| CN202081498U (en) * | 2011-05-13 | 2011-12-21 | 浙江大学 | Eccentric type curved weir intercepting well |
| CN202882095U (en) * | 2012-08-10 | 2013-04-17 | 烟台水泰和水科技有限公司 | Rain sewage switching device applied to split-flow rain water pipeline |
-
2012
- 2012-08-10 CN CN201210285297.1A patent/CN103572826B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902477A (en) * | 1997-04-30 | 1999-05-11 | John Vena | Combined sewer overflow and storm water diverter screen |
| CN1443959A (en) * | 2003-04-08 | 2003-09-24 | 深圳市金达莱环保有限公司 | Non-electric automatic control water-discharging valve capable of preventing gas from being sucked |
| CN101666116A (en) * | 2009-07-27 | 2010-03-10 | 重庆大学 | Drainage system used in cities, towns and communities |
| CN101660319A (en) * | 2009-09-28 | 2010-03-03 | 重庆大学 | Initial stage rain water flow discharging device |
| CN202081498U (en) * | 2011-05-13 | 2011-12-21 | 浙江大学 | Eccentric type curved weir intercepting well |
| CN202882095U (en) * | 2012-08-10 | 2013-04-17 | 烟台水泰和水科技有限公司 | Rain sewage switching device applied to split-flow rain water pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672464A (en) * | 2016-03-07 | 2016-06-15 | 济创环保工程（苏州）有限公司 | Unpowered flow limiting type intelligent catch basin with floating residue blocking function |
| CN105672463A (en) * | 2016-03-07 | 2016-06-15 | 济创环保工程（苏州）有限公司 | Unpowered current-limiting intelligent intercepting well with partition board dreg retaining device |
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| CN103572826A (en) | 2014-02-12 |
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Effective date of registration: 20200714 Address after: 1 / F, No. 2148, zhudai Road, Waigang Town, Jiading District, Shanghai Patentee after: Gu Hong (Shanghai) environmental protection engineering equipment Co.,Ltd. Address before: 3 building C, building 264000, Pioneer Park, Yantai economic and Technological Development Zone, Shandong, Shandong, Yantai 538, China Co-patentee before: Zhu Longlong Patentee before: YANTAI SHUITAIHE WATER TECHNOLOGY Co.,Ltd. |
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