CN202594806U - Integrated purification device for particulate matters in rainwater and sewage - Google Patents
Integrated purification device for particulate matters in rainwater and sewage Download PDFInfo
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- CN202594806U CN202594806U CN 201220171660 CN201220171660U CN202594806U CN 202594806 U CN202594806 U CN 202594806U CN 201220171660 CN201220171660 CN 201220171660 CN 201220171660 U CN201220171660 U CN 201220171660U CN 202594806 U CN202594806 U CN 202594806U
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Abstract
The utility model discloses an integrated purification device for particulate matters in rainwater and sewage. The integrated purification device is formed by vertically stacking three parts, namely a rotational-flow sand settling unit, a reducing setting unit and an upflow type filter unit, wherein the rotational-flow sand setting unit comprises a rotational-flow sand setting cylinder, a water inlet pipe, a sand discharge pipe, a siphon cover, a siphon pipe, a water seal tank, a drain pipe, a perforated plate I, a perforated plate II and a perforated plate III; the reducing setting unit comprises a reducing setting pool; and the upflow type filter unit comprises a filter chamber enclosure, a filter chamber bottom plate, a filter pool and a filter water outlet. The integrated purification device disclosed by the utility model is high in particulate matter removal rate and difficult for blockage, has the characteristics of energy saving performance, high efficiency, high hydraulic loading impact resistance, small floor area, low investment and operation management cost, can be widely applied to purification of the particulate matters in rainwater runoffs on roofs, elevated roads and the like as well as drainage pipelines with larger slope.
Description
Technical field
The utility model relates to rainwater, technical field of sewage, the refining plant of particularly a kind of rainwater, sewage.
Background technology
Along with fast development of urbanization, the non-point pollution that is caused by rainfall runoff becomes the important source of urban water-body pollutent gradually.Pollutent in the urban rainwater runoff is mainly derived from wet deposition that precipitation drip washing atmospheric polluting material causes and the leaching of city impermeable surface pollutent washes away, and the latter accounts for more than 90% of the rainfall runoff total amount of pollutant.PM for particulate matter is the main carrier of city impermeable surface pollutent; Such as: a large amount of pollutents that PM for particulate matters such as the settling on atmospheric precipitation, vehicle exhaust, tire wear, Snow Agent, the construction site, solid refuse and percolate contain (COD, nutrition, organism, heavy metal, pathogenic agent etc.); Finally all will under rainwater drip washing, souring, migrate in the receiving water body, and its ecotope will be produced serious harm.PM for particulate matter in the rainfall runoff also can cause the receiving water body turbidity to raise, and therefore, it has been generally acknowledged that PM for particulate matter is the potential component that the composing environment water quality worsens.In addition, PM for particulate matter can produce deposition in pipeline after getting into the urban discharging pipeline system under the rainfall runoff souring, form pipeline sediment pollution and waterlogging disaster.Nearly all there is depositional phenomenon to a certain degree in present urban discharging pipeline all over the world, and in Europe, the sedimental average sedimentation rate of pipeline is 30-500g/md.Find that through 72 inspection chambers in Xicheng District, Beijing being connected the drainage pipeline investigation thickness of deposits accounts for 20% ~ 30% of caliber in 41.67% the pipeline, greater than 50% account for 4.16%.PM for particulate matter deposits reduction, the waterlogging disaster that not only can cause corrosive pipeline, current transport capacity and takes place frequently in pipeline; And under the souring of strong rainfall runoff; Wherein accumulation is composed the pollutent deposit and can be discharged into urban water-body again, and the water surrounding of receiving water body is constituted a serious threat.
Pollute to the PM for particulate matter in the rainfall runoff, domestic and international existing treatment technology comprises filtration, sediment by rotational flow, deposition and infiltration/filter etc.Filtering technique generally is used for rainwater catchment system, is divided into on-line filtration and off-line again and filters, and filtration medium commonly used comprises fillers such as fine sand, gravel, haydite; Filtering technique is high to the PM for particulate matter clearance in the rainfall runoff; Can reach more than 90%, but easy blocking, maintenance cost is higher.The sediment by rotational flow technology is mainly used in the sedimental control of urban discharging pipeline system, can be divided into unpowered cyclone separator and power cyclone separator again.The operation work of unpowered cyclone separator need not by the external impetus condition, can realize its normal operation through the head fall of utilizing field condition; The operation work of power cyclone separator then need could realize that it runs well by the external impetus condition, i.e. industry such as oil, chemical industry hydrocyclone commonly used.Abroad in the research and application of rainwater and interflow rain sullage rotational flow separating treatment; The unpowered cyclone separator has not occupied dominant position because of it has advantages such as energy consumption, floor space is little, section dirty efficient is high, suitability is strong; But generally can only remove the bigger PM for particulate matter of particle diameter, clearance is relatively low.Traditional rainwater deposition adopts the static weight precipitate and separate mostly.Promptly in rainfall, at first rainwater is collected into deposition facility, treats that rain stops back redeposition for some time, supernatant is taken out use or discharging entering subsequent disposal structures.Under this processing mode, if will realize effective processing of runoff rainwater, must guarantee the processing volume of deposition facility, floor space is relatively large.Infiltration/filter facility is mainly used in rain penetration recharge groundwater or rainwater catchment system, comprises infiltration irrigation canals and ditches, vegetation shallow ridges, rainwater garden, seepage basin/pool etc., and such facility PM for particulate matter clearance is higher, but general processing power is less.
Summary of the invention
The utility model provides PM for particulate matter integrated purifying device in a kind of rainwater, the sewage, solve the technical problems that the PM for particulate matter treatment unit stops up easily, water-fast power load impact ability is low, floor space is big, energy consumption is high such as existing sand setting, deposition, filtration.
The utility model solves the technical scheme that its technical problem adopted:
PM for particulate matter integrated purifying device in this rainwater, the sewage is vertically superposeed by sediment by rotational flow unit, reducing precipitation unit and flow lifting type filtering unit three parts and to arrange and to constitute; Said sediment by rotational flow unit comprises sediment by rotational flow tube, water inlet pipe, sediment outflow pipe, syphon hood, U trap, water sealed tank, water shoot, perforation plate I, perforation plate II and perforation plate III; Said reducing precipitation unit comprises the reducing settling tank; Said flow lifting type filtering unit comprises filtration chamber's shell, filtration chamber's base plate, filter tank, filtrate and filters out the mouth of a river;
Said sediment by rotational flow tube is located at the device Lower Half, and the reducing settling tank is placed in sediment by rotational flow tube top, and the reducing settling tank is a funnel-shaped structure wide at the top and narrow at the bottom; Water inlet pipe passes reducing settling tank sidewall and tangentially is communicated with the sediment by rotational flow tube, and sediment by rotational flow tube top is communicated with the reducing settling tank by perforation plate I connected horizontally and the vertical perforation plate III that connects, and sediment by rotational flow tube sidewall is provided with perforation plate II at reducing settling tank bottom position; Have the PM for particulate matter return port on the perforation plate II, sediment by rotational flow tube bottom is Ji Shaqu, and sediment by rotational flow tube 11 bottoms one side connects the sediment outflow pipe; Opposite side connects water sealed tank; Water sealed tank top connects water shoot, and sediment by rotational flow tube 11 inside vertically are provided with L shaped U trap, and the siphon water outlet of U trap bottom stretches in the water sealed tank through sediment by rotational flow tube sidewall; The syphon hood that is positioned at device top is upwards stretched at the orifice plate I center that wears long, the siphon inlet on U trap top; The syphon hood bottom is connected with the base plate center, filtration chamber of being located at reducing settling tank end face, and filtration chamber's base plate is provided with the hole that is communicated with reducing settling tank and filter tank, and the filter tank is located on filtration chamber's base plate; Be filled with filtrate in the filter tank; The filter tank top margin is provided with the overflow weir that is higher than filtrate, and the filtrate upper surface leaves free-water level, and integral body is covered with filtration chamber's shell outside the filter tank; Leave the current gap between filter tank outer wall and the filtration chamber's outer casing inner wall, outer casing underpart connection in filtration chamber's filters out the mouth of a river.
Said sediment by rotational flow tube bottom is provided with the sloping baffle that is placed on the U trap, and sloping baffle integral body is hypocrateriform, and the center is provided with perforation, leaves the gap that PM for particulate matter is passed through between perforation and the U trap 1.
Said perforation plate I is circular, is distributed with circular permeable hole on the plate face, and plate face center has the U trap perforation.
PM for particulate matter return port on the said perforation plate II is the trilateral spination.
Hole on the said perforation plate III is vertical bar hole.
Said filtrate is ceramic grain filter, fiber filtering or natural mineral matter filtrate.
The height of said free-water level is 0.5～1.0 times of filtrate height.
The principle of the utility model is following:
The utility model is a kind of with the bigger PM for particulate matter of hydrodynamic force sediment by rotational flow removal particle diameter, removes the stepped control optimum combination technology of fine particle thing from flushing with flow lifting type speed change deposition and siphon.Through the analysis that the size distribution of PM for particulate matter in urban rainwater runoff and the sewage and component are constituted; The utility model proposes the theory of stepped control; The PM for particulate matter that is about in the rain/sewage is removed at different units according to particle diameter; Through the optimized distribution technical load, realize the simplification of technical process and the maximum removal of PM for particulate matter.Sewage gets into from the tangential, at first passes through power sediment by rotational flow unit, the cf-that relies on the eddy flow process to produce; Remove bigger PM for particulate matter and the dregs of particle diameter in the water body; Get into the reducing precipitation unit then, sewage flow velocity in uphill process reduces gradually, guarantees that particle diameter smaller particles thing can produce deposition in the sewage; The deposit seeds thing is assembled in the bottom, and the PM for particulate matter in the sewage is had certain net filter effect.The precipitation unit water outlet gets into filtering unit, further removes the fine particle thing in the sewage, and the filtration medium surface has the certain altitude free-water level, along with filtration resistance increases; Liquid level constantly rises in the siphon syphon hood, and the inner air of syphon hood is compressed, and final, sewage flows out from central U trap; The air that is compressed in the syphon hood top is progressively taken away, formed vacuum, siphon takes place, the filter tank conveyance capacity reduces gradually; After siphon formed, the filter tank stopped water outlet, and the free-water level of filling surface reduces rapidly, and the filter tank begins back flushing; When water level in the filter tank was lower than the bottom perforated plate, siphon destructive stopped back flushing, got into next filtration cycle.Classification through PM for particulate matter in the optimization implementation sewage of aforesaid combination technology operational conditions is removed, and carries out engineering design, construction, commissioning test through this Design of device parameter, can improve the removal efficient of PM for particulate matter in the sewage, reduces construction cost and running cost.
The beneficial effect of the utility model is following:
(1), particulate matter removal efficiencies is high, is not easy to stop up, operational management is simple.
Tradition rainwater/sewage particulate thing purification techniques comprises: filtration, sediment by rotational flow, deposition and infiltration/filter; The subject matter that in the engineering practical application, exists comprises that operation energy consumption is high, clearance is low, floor space is big, is prone to obstruction etc., has limited the widespread use of above-mentioned monotechnics in actual engineering.This invention combines the ultimate principle and the characteristics of above-mentioned each single technology, adopts the principle of system optimization, stepped control, and the particle diameter larger particles is removed in the sediment by rotational flow unit, precipitation unit is removed than small particle, filtering unit and removed the fine particle thing.The water outlet of sediment by rotational flow unit gets into precipitation unit through perforation plate, and perforation plate I and perforation plate III can effectively tackle the swimmer in the sewage, and the PM for particulate matter return port on the perforation plate II is designed to trilateral, and PM for particulate matter is passed through smoothly, has not susceptible to plugging advantage.Sloping baffle is equipped with in sediment by rotational flow tube bottom, further tackles the susceptible to plugging swimmer in the water body.Compare with traditional monotechnics, the utility model has improved system particles thing clearance greatly, has reduced the frequency of stopping up, has prolonged the cycle of each unit operation, and operational management is simple.
(2), floor space is little, makes full use of the water level discrepancy in elevation, need not power consumption.
This device comprises sediment by rotational flow unit, reducing precipitation unit and flow lifting type filtering unit, and three unit adopt vertical stack to arrange, have saved floor space greatly; Need not power-equipment between each unit connects; Rely on the water level discrepancy in elevation to realize that water body flows, filtering unit adopts the hydrocone type automatic backwash, with filtrate top layer head as backwash water; Need not to be provided with back flushing water tank and power-equipment, reduced water resources and power consumption.
(3), water-fast power impact load ability is high, stable effluent quality.
This device has higher water-fast power load impact ability, and when hydraulic load was low, the water inlet flow velocity was lower; Sediment by rotational flow efficient is lower; PM for particulate matter is mainly removed through deposition and filtering unit, and when hydraulic load was higher, the water inlet flow velocity was bigger; Sediment by rotational flow efficient is higher, and PM for particulate matter is mainly removed through sediment by rotational flow and filtering unit.Because PM for particulate matter is removed in the different units classification, also improved the removal load of each unit grain thing greatly in addition.
The utility model can be widely used in rainfall runofves such as roofing, overpass, and the purification of PM for particulate matter in the bigger drainage pipeline of the gradient.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the side-looking structural representation of the utility model.
Fig. 2 is the two dimensional structure synoptic diagram of perforation plate I.
Fig. 3 is the side-looking structural representation of perforation plate II.
Fig. 4 is the side-looking structural representation of perforation plate III.
Fig. 5 is the plan structure synoptic diagram of the utility model.
Reference numeral: 1-U trap; The 2-syphon hood; The 3-filtrate; The 4-overflow weir; 5-filters out the mouth of a river; The 6-water inlet pipe; 7-reducing settling tank; The 8-sloping baffle; 9-Ji Shaqu; 10-sediment outflow pipe; 11-sediment by rotational flow tube; 12-siphon water outlet; The 13-water sealed tank; The 14-water shoot; 15-perforation plate III; 16-perforation plate II; 17-perforation plate I; 18-filtration chamber shell; 19-filtration chamber base plate; The 20-filter tank; The 21-siphon inlet; 22-PM for particulate matter return port; The 23-bar hole; The circular permeable hole of 24-; The perforation of 25-U trap.
Embodiment
Embodiment is referring to Fig. 1, shown in Figure 5, and PM for particulate matter integrated purifying device in this rainwater, the sewage is vertically superposeed by sediment by rotational flow unit, reducing precipitation unit and flow lifting type filtering unit three parts and to arrange and constitute; Said sediment by rotational flow unit comprises sediment by rotational flow tube 11, water inlet pipe 6, sediment outflow pipe 10, syphon hood 2, U trap 1, water sealed tank 13, water shoot 14, perforation plate I17, perforation plate II16 and perforation plate III15; Said reducing precipitation unit comprises reducing settling tank 7; Said flow lifting type filtering unit comprises filtration chamber's shell 18, filtration chamber's base plate 19, filter tank 20, filtrate 3 and filters out the mouth of a river 5.
Said sediment by rotational flow tube 11 is located at the device Lower Half, and reducing settling tank 7 is placed in sediment by rotational flow tube 11 tops, and reducing settling tank 7 is a funnel-shaped structure wide at the top and narrow at the bottom; Water inlet pipe 6 passes reducing settling tank 7 sidewalls and tangentially is communicated with sediment by rotational flow tube 11; Sediment by rotational flow tube 11 tops are communicated with reducing settling tank 7 by perforation plate I17 connected horizontally and the vertical perforation plate III15 that connects, and sediment by rotational flow tube 11 sidewalls are provided with perforation plate II16 at reducing settling tank 7 bottom positions, have PM for particulate matter return port 22 on the perforation plate II; Sediment by rotational flow tube 11 bottoms are collection sand district 9; Sediment by rotational flow tube 11 bottoms one side connects sediment outflow pipe 10, and opposite side connects water sealed tank 13, and water sealed tank 13 tops connect water shoot 14; Sediment by rotational flow tube 11 inside vertically are provided with L shaped U trap 1; The siphon water outlet 12 of U trap 1 bottom stretches in the water sealed tank 13 through sediment by rotational flow tube 11 sidewalls, and the syphon hood 2 that is positioned at device top is upwards stretched at the orifice plate I17 center that wears long, the siphon inlet 21 on U trap 1 top, and the syphon hood bottom is connected with filtration chamber's base plate 19 centers of being located at reducing settling tank 7 end faces; Filtration chamber's base plate 19 is provided with the hole that is communicated with reducing settling tank 7 and filter tank 20; Filter tank 20 is located on filtration chamber's base plate 19, is filled with filtrate 3 in the filter tank 20, and filtrate 3 is light filter materials such as ceramic grain filter, fiber filtering, natural mineral matter filtrate.Filter tank 20 top margins are provided with the overflow weir 4 that is higher than filtrate 3; Filtrate 3 upper surfaces leave free-water level; The height of free-water level is 0.5～1.0 times of filter material layer; Filter tank 20 outer integral body are covered with filtration chamber's shell 18, leave the current gap between filter tank 20 outer walls and filtration chamber's shell 18 inwalls, and the connection of filtration chamber's shell 18 bottoms filters out the mouth of a river 5.
Said sediment by rotational flow tube 11 bottoms are provided with the sloping baffle 8 that is placed on the U trap, and sloping baffle 8 integral body are hypocrateriform, and the center is provided with perforation, leave the gap that PM for particulate matter is passed through between perforation and the U trap 1.
Referring to shown in Figure 2, said perforation plate I17 is circular, is distributed with circular permeable hole 24 on the plate face, and plate face center has U trap perforation 25.
Referring to shown in Figure 3, the hole on the said perforation plate III15 is vertical bar hole 23.
Referring to shown in Figure 4, the PM for particulate matter return port 22 on the said perforation plate II16 is the trilateral spination.
PM for particulate matter integrated purifying method in the rainwater of PM for particulate matter integrated purifying device, the sewage in this employing rainwater, the sewage has the following steps:
Claims (7)
1. PM for particulate matter integrated purifying device in a rainwater, the sewage is characterized in that: vertically superposeed by sediment by rotational flow unit, reducing precipitation unit and flow lifting type filtering unit three parts and arrange and constitute; Said sediment by rotational flow unit comprises sediment by rotational flow tube (11), water inlet pipe (6), sediment outflow pipe (10), syphon hood (2), U trap (1), water sealed tank (13), water shoot (14), perforation plate I (17), perforation plate II (16) and perforation plate III (15); Said reducing precipitation unit comprises reducing settling tank (7); Said flow lifting type filtering unit comprises filtration chamber's shell (18), filtration chamber's base plate (19), filter tank (20), filtrate (3) and filters out the mouth of a river (5);
Said sediment by rotational flow tube (11) is located at the device Lower Half; Reducing settling tank (7) is placed in sediment by rotational flow tube (11) top; Reducing settling tank (7) is a funnel-shaped structure wide at the top and narrow at the bottom, and water inlet pipe (6) passes reducing settling tank (7) sidewall and tangentially is communicated with sediment by rotational flow tube (11), and sediment by rotational flow tube (11) top is communicated with reducing settling tank (7) by perforation plate I connected horizontally (17) and the vertical perforation plate III (15) that connects; Sediment by rotational flow tube (11) sidewall is provided with perforation plate II (16) at reducing settling tank (7) bottom position; Have PM for particulate matter return port (22) on the perforation plate II, sediment by rotational flow tube (11) bottom is Ji Shaqu (9), and sediment by rotational flow tube (11) bottom one side connects sediment outflow pipe (10); Opposite side connects water sealed tank (13); Water sealed tank (13) top connects water shoot (14), and sediment by rotational flow tube (11) inside vertically is provided with L shaped U trap (1), and the siphon water outlet (12) of U trap (1) bottom stretches in the water sealed tank (13) through sediment by rotational flow tube (11) sidewall; The syphon hood (2) that is positioned at device top is upwards stretched at orifice plate I (17) center that wears long, the siphon inlet (21) on U trap (1) top; The syphon hood bottom is connected with filtration chamber's base plate (19) center of being located at reducing settling tank (7) end face, and filtration chamber's base plate (19) is provided with the hole that is communicated with reducing settling tank (7) and filter tank (20), and filter tank (20) are located on filtration chamber's base plate (19); Be filled with filtrate (3) in the filter tank (20); Filter tank (20) top margin is provided with the overflow weir (4) that is higher than filtrate (3), and filtrate (3) upper surface leaves free-water level, and the outer integral body in filter tank (20) is covered with filtration chamber's shell (18); Leave the current gap between filter tank (20) outer wall and filtration chamber's shell (18) inwall, the connection of filtration chamber's shell (18) bottom filters out the mouth of a river (5).
2. PM for particulate matter integrated purifying device in rainwater according to claim 1, the sewage; It is characterized in that: said sediment by rotational flow tube (11) bottom is provided with the sloping baffle (8) that is placed on the U trap; Sloping baffle (8) integral body is hypocrateriform; The center is provided with perforation, leaves the gap that PM for particulate matter is passed through between perforation and the U trap (1).
3. PM for particulate matter integrated purifying device in rainwater according to claim 1, the sewage is characterized in that: said perforation plate I (17) is distributed with circular permeable hole (24) for circular on the plate face, and plate face center has U trap perforation (25).
4. PM for particulate matter integrated purifying device in rainwater according to claim 1, the sewage is characterized in that: the PM for particulate matter return port (22) on the said perforation plate II (16) is the trilateral spination.
5. PM for particulate matter integrated purifying device in rainwater according to claim 1, the sewage is characterized in that: the hole on the said perforation plate III (15) is vertical bar hole (23).
6. PM for particulate matter integrated purifying device in rainwater according to claim 1, the sewage is characterized in that: said filtrate (3) is ceramic grain filter, fiber filtering or natural mineral matter filtrate.
7. PM for particulate matter integrated purifying device in rainwater according to claim 1, the sewage is characterized in that: the height of said free-water level is 0.5～1.0 times of filtrate height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171660 CN202594806U (en) | 2012-04-20 | 2012-04-20 | Integrated purification device for particulate matters in rainwater and sewage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220171660 CN202594806U (en) | 2012-04-20 | 2012-04-20 | Integrated purification device for particulate matters in rainwater and sewage |
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| CN202594806U true CN202594806U (en) | 2012-12-12 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774896A (en) * | 2012-04-20 | 2012-11-14 | 北京建筑工程学院 | Integral purification device and method for particles in rain and sewage |
| CN103723872A (en) * | 2013-12-31 | 2014-04-16 | 杜津玲 | Sewage treatment device |
| CN106075968A (en) * | 2016-08-11 | 2016-11-09 | 铁道第三勘察设计院集团有限公司 | A kind of spiral-flow type spiral settler of automatic control system spoil disposal |
| CN106110720A (en) * | 2016-08-11 | 2016-11-16 | 铁道第三勘察设计院集团有限公司 | A kind of waterpower controls siphon-type full-automatic cyclone sediment device |
| CN106904759A (en) * | 2017-03-29 | 2017-06-30 | 广东亘盈环保实业集团有限公司 | A kind of urban rainwater processing unit |
| CN107965042A (en) * | 2017-12-25 | 2018-04-27 | 中冶京诚工程技术有限公司 | Rainwater deslagging and sand settling device |
| CN108298708A (en) * | 2018-02-05 | 2018-07-20 | 北京建筑大学 | A kind of integrated form integration initial rainwater in-situ treatment device and method |
| CN110999849A (en) * | 2017-07-10 | 2020-04-14 | 大连海洋大学 | Undisturbed shellfish temporary culture purification system |
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2012
- 2012-04-20 CN CN 201220171660 patent/CN202594806U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774896A (en) * | 2012-04-20 | 2012-11-14 | 北京建筑工程学院 | Integral purification device and method for particles in rain and sewage |
| CN102774896B (en) * | 2012-04-20 | 2014-06-11 | 北京建筑工程学院 | Integral purification device and method for particles in rain and sewage |
| CN103723872A (en) * | 2013-12-31 | 2014-04-16 | 杜津玲 | Sewage treatment device |
| CN103723872B (en) * | 2013-12-31 | 2015-09-16 | 刘懿枞 | For the water treatment device of sewage |
| CN106075968A (en) * | 2016-08-11 | 2016-11-09 | 铁道第三勘察设计院集团有限公司 | A kind of spiral-flow type spiral settler of automatic control system spoil disposal |
| CN106110720A (en) * | 2016-08-11 | 2016-11-16 | 铁道第三勘察设计院集团有限公司 | A kind of waterpower controls siphon-type full-automatic cyclone sediment device |
| CN106110720B (en) * | 2016-08-11 | 2018-01-02 | 中国铁路设计集团有限公司 | A kind of waterpower controls siphon-type full-automatic cyclone sediment device |
| CN106904759A (en) * | 2017-03-29 | 2017-06-30 | 广东亘盈环保实业集团有限公司 | A kind of urban rainwater processing unit |
| CN110999849A (en) * | 2017-07-10 | 2020-04-14 | 大连海洋大学 | Undisturbed shellfish temporary culture purification system |
| CN107965042A (en) * | 2017-12-25 | 2018-04-27 | 中冶京诚工程技术有限公司 | Rainwater deslagging and sand settling device |
| CN108298708A (en) * | 2018-02-05 | 2018-07-20 | 北京建筑大学 | A kind of integrated form integration initial rainwater in-situ treatment device and method |
| CN108298708B (en) * | 2018-02-05 | 2021-02-02 | 北京建筑大学 | Integrated integrated initial rainwater in-situ treatment device and method |
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| 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: 20121212 Termination date: 20140420 |