CN102182242A - Rainwater treatment system and rainwater treatment method - Google Patents
Rainwater treatment system and rainwater treatment method Download PDFInfo
- Publication number
- CN102182242A CN102182242A CN 201110085310 CN201110085310A CN102182242A CN 102182242 A CN102182242 A CN 102182242A CN 201110085310 CN201110085310 CN 201110085310 CN 201110085310 A CN201110085310 A CN 201110085310A CN 102182242 A CN102182242 A CN 102182242A
- Authority
- CN
- China
- Prior art keywords
- rainwater
- basin
- rain
- catch
- sedimentation basin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Sewage (AREA)
Abstract
The invention discloses a rainwater treatment system and a rainwater treatment method. The system comprises a rainwater storage pipe, a rainwater well and a rainwater dredging pipe communicated sequentially, wherein the rainwater dredging pipe is communicated with a river; the system also comprises a river water flow backward blocking weir, a primary rain settling pond, and a lifting pump station for pumping the rainwater to the primary rain settling pond from the rainwater well; and the river water flow backward blocking weir is arranged in the rainwater well, the bottom of the primary rain settling pond is provided with a drainage port communicated with a municipal sewage pipe network and a control valve thereof, and the middle part or the upper part of the primary rain settling pond is provided with a drainage port communicated with the river and a control valve thereof. The treatment method is the rainwater treatment method of the system. Compared with the prior art, the pollution of the rainwater to the environment, particularly the pollution of the primary rainwater to the environment, can be reduced.
Description
Technical field
The present invention relates to the rainwater processing technology field, particularly relate to a kind of rainwater treatment system and rainwater processing method thereof.
Background technology
Along with the aggravation that urban ground pollutes, rainfall runoff pollutes serious further.Asphalt felt roofing, bituminous concrete road, Snow Agent, agricultural chemicals, utilization of pesticides all can make in the rainwater of runoff and contain a large amount of organic matters, pathogen, heavy metal, wet goods pollutant, and the degree of contamination of rainwater should not be underestimated.Especially pollute the most serious early-stage rainwater runoff, entrained pollutant nearly all concentrates in initial stage several millimeters rainwater in the rainfall runoff, and its pollution load if this part runoff directly discharges, then can cause huge pollution to surface water far above the middle and later periods rainwater.
Summary of the invention
At the problems referred to above, technical problem to be solved by this invention is, a kind of rainwater treatment system and rainwater processing method thereof are provided, and to the processing that early-stage rainwater rationalizes, reduces its pollution to environment.
A kind of rainwater treatment system, comprise the rainwater memotron, catch-basin and the rainwater dredging pipe that are communicated with successively, described rainwater dredging pipe is communicated with the river course, wherein, also comprises the lifting pumping plant that river pours in down a chimney retardance weir, first rain sedimentation basin and rainwater is evacuated to first rain sedimentation basin from catch-basin; Described river pours in down a chimney the retardance weir and is located in the described catch-basin, the described bottom of rain sedimentation basin just is provided with first outfall and the by-pass valve control thereof that is communicated with the municipal wastewater pipe network, and the described just middle part or the top of rain sedimentation basin are provided with second outfall and the by-pass valve control thereof that is communicated with the river course.
A kind of rainwater processing method may further comprise the steps:
Just rain is collected step: in predetermined first rain period, utilize river to pour in down a chimney the retardance weir early-stage rainwater is stored in rainwater memotron and the catch-basin;
First rain transfer step: within the predetermined time, the early-stage rainwater that utilizes water pump will be stored in rainwater memotron and the catch-basin is delivered in the first rain sedimentation basin;
Rain sedimentation just and drain steps: early-stage rainwater is detained in first rain sedimentation basin after the ticket reserving time carries out sedimentation, and the early-stage rainwater supernatant that sedimentation is formed enters the river course, and sedimentation partly enters the municipal wastewater pipe network.
Preferably, also comprise rain sedimentation basin cleaning step just: after rainfall finished, the rainwater that utilizes water pump will be stored in rainwater memotron and the catch-basin was delivered to rain sedimentation basin just, first rain sedimentation basin is cleaned, and rainwater is entered the municipal wastewater pipe network.This preferred version helps emptying rainwater memotron and catch-basin on the one hand, keeps its water-holding capacity, can utilize the later stage rainwater that is stored in wherein that first rain sedimentation basin is cleaned on the other hand.
Preferably, also comprise misconnection sewerage treatment step: utilize river to pour in down a chimney the retardance weir and rainwater memotron prime rainwater is gone in cross-flow handle ducted sewage collecting and be stored in rainwater memotron and the catch-basin, when sewage collecting is stored to predetermined amount, utilize water pump that it is delivered to rain sedimentation basin just, go into municipal sewage network side by side.This preferred version designs at the problem that most rainwater treatment system exists sanitary sewage to flow into, and can prevent that sanitary sewage from directly entering the river course.
The beneficial effect that the present invention is compared with the prior art is: make full use of existing rainwater treatment system, realized the differentiated treatment to early-stage rainwater and later stage rainwater, can prevent the pollution of early-stage rainwater to environment effectively.
Description of drawings
Fig. 1 is the system schematic of the rainwater treatment system of the specific embodiment of the invention.
The specific embodiment
The contrast accompanying drawing also is explained in detail the present invention in conjunction with the preferred embodiments below.
This specific embodiment is the rainwater treatment system that is based upon high water level Bin He band biotope, as shown in Figure 1, the rainwater treatment system of present embodiment is poured in down a chimney retardance weir 3, rainwater dredging pipe 4, is promoted pumping plant 5, first rain sedimentation basin 6, first outfall and by-pass valve control 7, second outfall and by-pass valve control 8 thereof and form by rainwater memotron 1, catch-basin 2, river.
Rainwater memotron 1, catch-basin 2, rainwater dredging pipe 4, river course are communicated with successively.
River pours in down a chimney retardance weir 3 and is located in the catch-basin 2, and its height need satisfy two conditions: when 1) preventing the river course high water level, river pours in down a chimney and enters the biotope; 2) during rainfall, guarantee certain rainwater storage capacity, have only when the water level in the catch-basin exceeds river and pour in down a chimney retardance during the weir, the rainwater river that could overflow pours in down a chimney the retardance weir and enters the rainwater dredging pipe and flow in the river course, thereby the interception of early-stage rainwater that can pollution load in the biotope is high is kept water pump and is normally moved in rainwater memotron 1 and catch-basin 2.
Just rain sedimentation basin 6 is used for the sedimentation layering of early-stage rainwater, its volume size must design according to factors such as the area of biotope, environment, location rainfall situations, just first outfall and the by-pass valve control 7 thereof that is communicated with the municipal wastewater webmaster established in the bottom of rain sedimentation basin 6, and middle part or top are established and is communicated with second outfall and by-pass valve control 8 thereof with the river course.First outfall and second outfall also can be provided with a plurality of according to actual needs, and especially second outfall can be provided with a plurality of in first rain sedimentation basin 6 different water level point.
Promoting pumping plant 5 is arranged between catch-basin 2 and the first rain sedimentation basin 6, the rainwater that is used for utilizing water pump will be stored in rainwater memotron 1 and catch-basin 2 is delivered in the first rain sedimentation basin 6, the conveying capacity that promotes pumping plant 5 is selected according to the environment of biotope, generally speaking, promote pumping plant 5 and need have the ability that the rainwater that will be stored in rainwater memotron 1 and the catch-basin 2 is delivered to first rain sedimentation basin 6 in 15 minutes, avoiding early-stage rainwater and later stage rainwater in rainwater memotron 1 and catch-basin 2, to mix in a large number, thereby lower the treatment effeciency of system.
The operating principle of said system and rainwater handling process are as follows:
1) just rain is collected step: at the rainfall initial stage, because river pours in down a chimney the effect on retardance weir, early-stage rainwater is temporarily stored in rainwater memotron 1 and catch-basin 2.In order to collect purer early-stage rainwater (the poor early-stage rainwater of later stage rainwater), the rainwater memotron must be transformed into suitable caliber to guarantee the rainwater storage capacity, because caliber is too small generally speaking, the too small meeting of caliber causes two problems: (1) charge for remittance quantity not sufficient causes pump can't normally move (2) can't in time compile rain just, early-stage rainwater is mixed with the later stage rainwater before entering pipeline, and influence is the collection of rain just; The problem of the excessive existence of caliber: increase the engineering excavation amount, increase the capital construction cost.And the rainwater reservoir conduit becomes big to the amount of compiling that satisfies early-stage rainwater just, can avoid this two problems just.
2) just rain shifts and the later stage stormwater overflow: when the initial stage rainwater water surface reaches river and pours in down a chimney the default height in retardance weir, the lifting pumping plant brings into operation, the early-stage rainwater that stores in rainwater memotron 1 and the catch-basin 2 is taken out rain sedimentation basin 6 as before, to reach predetermined altitude be to promote pumping plant 5 and quit work to water levels in the rain sedimentation basin 6 originally; After lifting pumping plant 5 quits work, if rainfall is still continuing, the later stage rainwater will be crossed river and pour in down a chimney retardance weir 3, and the rainwater dredging pipe 4 of flowing through enters in the river course.
3) rain sedimentation just and discharging: after the lifting pumping plant quit work 24 hours, open the by-pass valve control of second outfall, the supernatant that the early-stage rainwater sedimentation is formed enters the river course; Open the by-pass valve control of first outfall then, the sedimentation of early-stage rainwater is partly entered the municipal wastewater webmaster.The sedimentation time of early-stage rainwater in first rain sedimentation basin in the time of described 24 hours, can adjust according to actual needs, as long as can reach effect, that is: the solid that contained in the early-stage rainwater, suspended particulate etc. are brought the material of high-pollution load be settled down to the sedimentation basin bottom with the early-stage rainwater sedimentation separation.
4) just the rain sedimentation basin cleans: because rainwater pours in down a chimney the effect on retardance weir 3, before rainfall finishes, also can tackle part later stage rainwater in rainwater memotron 1 and catch-basin 2, this part later stage rainwater pollution load is low; If but untimely emptying meeting reduces the first rain capacity gauge of rainwater memotron 1 and catch-basin 2 when raining next time.For this reason, can after finishing, rainfall start lifting pumping plant 5 once more, with the first rain sedimentation basin 6 of the later stage rainwater suction of interception, but emptying rainwater memotron 1 and catch-basin 2 also can have flushing action to first rain sedimentation basin 6 on the other hand on the one hand, enter the municipal wastewater webmaster after the flushing.
5) misconnection sewerage treatment: because in the biotope, rainwater treatment system (the prime storm sewer of rainwater reservoir conduit) flows into sanitary sewage easily, misconnection sewage can also be collected by system of the present invention, its principle is identical with the collection of early-stage rainwater, if misconnection sewage reaches predetermined water level, open pumping plant with the first rain sedimentation basin of wrong suction, enter the municipal wastewater pipe network.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the technician of the technical field of the invention, without departing from the inventive concept of the premise, can also make some being equal to substitute or obvious modification, and performance or purposes are identical, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. rainwater treatment system, comprise the rainwater memotron, catch-basin and the rainwater dredging pipe that are communicated with successively, described rainwater dredging pipe is communicated with the river course, it is characterized in that: also comprise the lifting pumping plant that river pours in down a chimney retardance weir, first rain sedimentation basin and rainwater is evacuated to first rain sedimentation basin from catch-basin; Described river pours in down a chimney the retardance weir and is located in the described catch-basin, the described bottom of rain sedimentation basin just is provided with first outfall and the by-pass valve control thereof that is communicated with the municipal wastewater pipe network, and the described just middle part or the top of rain sedimentation basin are provided with second outfall and the by-pass valve control thereof that is communicated with the river course.
2. the rainwater processing method of the described rainwater treatment system of claim 1 is characterized in that, may further comprise the steps:
Just rain is collected step: in predetermined first rain period, utilize river to pour in down a chimney the retardance weir early-stage rainwater is stored in rainwater memotron and the catch-basin;
First rain transfer step: within the predetermined time, the early-stage rainwater that utilizes water pump will be stored in rainwater memotron and the catch-basin is pumped to first rain sedimentation basin;
Rain sedimentation just and drain steps: early-stage rainwater is detained in first rain sedimentation basin after the ticket reserving time carries out sedimentation, and the early-stage rainwater supernatant that sedimentation is formed enters the river course, and sedimentation partly enters the municipal wastewater pipe network.
3. rainwater processing method according to claim 2, it is characterized in that, also comprise rain sedimentation basin cleaning step just: after rainfall finishes, the later stage rainwater that utilizes water pump will be stored in rainwater memotron and the catch-basin is evacuated to rain sedimentation basin just, first rain sedimentation basin is cleaned, and rainwater is entered the municipal wastewater pipe network.
4. according to claim 2 or 3 described rainwater processing methods, it is characterized in that, also comprise misconnection sewerage treatment step: utilize river to pour in down a chimney the sewage collecting of the retardance weir rainwater memotron prime rainwater processing pipeline is gone in cross-flow and be stored in rainwater memotron and the catch-basin, when sewage collecting is stored to predetermined amount, utilize water pump to pump it to rain sedimentation basin just, go into municipal sewage network side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100853104A CN102182242B (en) | 2011-04-06 | 2011-04-06 | Rainwater treatment system and rainwater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100853104A CN102182242B (en) | 2011-04-06 | 2011-04-06 | Rainwater treatment system and rainwater treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182242A true CN102182242A (en) | 2011-09-14 |
| CN102182242B CN102182242B (en) | 2012-05-30 |
Family
ID=44568519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100853104A Active CN102182242B (en) | 2011-04-06 | 2011-04-06 | Rainwater treatment system and rainwater treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182242B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505749A (en) * | 2011-09-30 | 2012-06-20 | 江苏大学 | Combined sewage pipe network time-staggered flow distribution control system and control method |
| CN102776949A (en) * | 2012-08-14 | 2012-11-14 | 上海市城市建设设计研究总院 | Separately-built type rainwater storage system |
| CN102808447A (en) * | 2012-08-14 | 2012-12-05 | 上海市城市建设设计研究总院 | Interception storage adjustment system for intensively transferring initial rainwater by sewage interception pipe |
| CN102808448A (en) * | 2012-08-14 | 2012-12-05 | 上海市城市建设设计研究总院 | Dry weather flow and initial rainwater multifunctional catch basin for combined network |
| CN102900143A (en) * | 2012-10-23 | 2013-01-30 | 王维 | Drainage system for preventing foreign biological invasion |
| CN103669547A (en) * | 2013-11-18 | 2014-03-26 | 广州市市政工程设计研究院 | Method and equipment for raising urban water-logging prevention standard and controlling water pollution |
| CN104878822A (en) * | 2014-02-28 | 2015-09-02 | 段昌和 | Excess rainwater storage and drainage system and method |
| CN105113606A (en) * | 2015-09-19 | 2015-12-02 | 王玮 | Municipal rainwater processing system |
| CN105155665A (en) * | 2015-10-11 | 2015-12-16 | 王玮 | Municipal drainage system |
| CN105239659A (en) * | 2015-10-07 | 2016-01-13 | 王玮 | Municipal drainage system |
| CN105256875A (en) * | 2015-08-31 | 2016-01-20 | 清华大学 | Levee-type initial stage rainwater interception-storage-processing combined system |
| CN105587029A (en) * | 2016-03-08 | 2016-05-18 | 大连市市政设计研究院有限责任公司 | Gutter inlet special for rainwater utilization |
| CN106693468A (en) * | 2016-12-19 | 2017-05-24 | 北京建筑大学 | Abandoning, purifying and storing system for rainwater |
| CN109723134A (en) * | 2018-12-20 | 2019-05-07 | 常州市市政工程设计研究院有限公司 | Novel flow-stopping pumping plant |
| CN113482121A (en) * | 2021-07-09 | 2021-10-08 | 华蓝设计（集团）有限公司 | Unpowered control energy-saving system for pressurization and pumping drainage of regulating reservoir of sewage plant |
| CN114033024A (en) * | 2021-11-12 | 2022-02-11 | 中冶南方城市建设工程技术有限公司 | Realize regulation pond layering drainage system based on rainwater quality of water and water level |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626092A (en) * | 1991-10-08 | 1994-02-01 | Hitachi Ltd | Reservoir of drainage system, drainage system and operation method therefor |
| CN1730850A (en) * | 2005-09-02 | 2006-02-08 | 廖洪生 | Method for collecting, storing, and delivering rainwater and pipeline system employing the same |
| CN2928966Y (en) * | 2006-07-12 | 2007-08-01 | 葛敬 | Rain initial phase overflow device |
| CN101624840A (en) * | 2008-12-22 | 2010-01-13 | 长沙理工大学 | Method for comprehensively discharging accumulated water of underpass roads by deep layer of filtering settling pond |
| CN201687074U (en) * | 2010-06-04 | 2010-12-29 | 林世崇 | City shunt sewage discharge apparatus |
-
2011
- 2011-04-06 CN CN2011100853104A patent/CN102182242B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626092A (en) * | 1991-10-08 | 1994-02-01 | Hitachi Ltd | Reservoir of drainage system, drainage system and operation method therefor |
| CN1730850A (en) * | 2005-09-02 | 2006-02-08 | 廖洪生 | Method for collecting, storing, and delivering rainwater and pipeline system employing the same |
| CN2928966Y (en) * | 2006-07-12 | 2007-08-01 | 葛敬 | Rain initial phase overflow device |
| CN101624840A (en) * | 2008-12-22 | 2010-01-13 | 长沙理工大学 | Method for comprehensively discharging accumulated water of underpass roads by deep layer of filtering settling pond |
| CN201687074U (en) * | 2010-06-04 | 2010-12-29 | 林世崇 | City shunt sewage discharge apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 《南华大学学报（自然科学版）》 20100930 陈思光 等 城市雨水处理研究现状与进展 第24卷, 第3期 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505749A (en) * | 2011-09-30 | 2012-06-20 | 江苏大学 | Combined sewage pipe network time-staggered flow distribution control system and control method |
| CN102505749B (en) * | 2011-09-30 | 2013-11-20 | 江苏大学 | Combined sewage pipe network time-staggered flow distribution control system and control method |
| CN102776949A (en) * | 2012-08-14 | 2012-11-14 | 上海市城市建设设计研究总院 | Separately-built type rainwater storage system |
| CN102808447A (en) * | 2012-08-14 | 2012-12-05 | 上海市城市建设设计研究总院 | Interception storage adjustment system for intensively transferring initial rainwater by sewage interception pipe |
| CN102808448A (en) * | 2012-08-14 | 2012-12-05 | 上海市城市建设设计研究总院 | Dry weather flow and initial rainwater multifunctional catch basin for combined network |
| CN102900143A (en) * | 2012-10-23 | 2013-01-30 | 王维 | Drainage system for preventing foreign biological invasion |
| CN103669547A (en) * | 2013-11-18 | 2014-03-26 | 广州市市政工程设计研究院 | Method and equipment for raising urban water-logging prevention standard and controlling water pollution |
| CN104878822A (en) * | 2014-02-28 | 2015-09-02 | 段昌和 | Excess rainwater storage and drainage system and method |
| CN105256875A (en) * | 2015-08-31 | 2016-01-20 | 清华大学 | Levee-type initial stage rainwater interception-storage-processing combined system |
| CN105113606A (en) * | 2015-09-19 | 2015-12-02 | 王玮 | Municipal rainwater processing system |
| CN106013388B (en) * | 2015-09-19 | 2018-03-16 | 中建伟力建设集团有限公司 | Municipal rain processing system |
| CN106013388A (en) * | 2015-09-19 | 2016-10-12 | 王玮 | Water treatment system and water treatment method |
| CN105113606B (en) * | 2015-09-19 | 2017-02-08 | 天宏建设有限公司 | Municipal rainwater processing system |
| CN105239659A (en) * | 2015-10-07 | 2016-01-13 | 王玮 | Municipal drainage system |
| CN105155665A (en) * | 2015-10-11 | 2015-12-16 | 王玮 | Municipal drainage system |
| CN105587029A (en) * | 2016-03-08 | 2016-05-18 | 大连市市政设计研究院有限责任公司 | Gutter inlet special for rainwater utilization |
| CN106693468A (en) * | 2016-12-19 | 2017-05-24 | 北京建筑大学 | Abandoning, purifying and storing system for rainwater |
| CN109723134A (en) * | 2018-12-20 | 2019-05-07 | 常州市市政工程设计研究院有限公司 | Novel flow-stopping pumping plant |
| CN113482121A (en) * | 2021-07-09 | 2021-10-08 | 华蓝设计（集团）有限公司 | Unpowered control energy-saving system for pressurization and pumping drainage of regulating reservoir of sewage plant |
| CN113482121B (en) * | 2021-07-09 | 2022-12-13 | 华蓝设计（集团）有限公司 | Sewage plant equalizing basin pressurization pump drainage unpowered control economizer system |
| CN114033024A (en) * | 2021-11-12 | 2022-02-11 | 中冶南方城市建设工程技术有限公司 | Realize regulation pond layering drainage system based on rainwater quality of water and water level |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102182242B (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102182242B (en) | Rainwater treatment system and rainwater treatment method | |
| CN104174191B (en) | Integral grit chamber for treating rainwater and treating method | |
| CN105863021B (en) | A kind of fragment shuts off exhaust system of regulating and storing | |
| CN104631610B (en) | A kind of rainwater granule separates and system of regulating and storing | |
| CN209686564U (en) | A kind of small sponge urban ecology rainwater storage cell system | |
| CN102247728A (en) | First rain treatment system | |
| CN109179890B (en) | Urban pipe network overflow sewage storage and quality-grading purification system and method | |
| CN105735449A (en) | Urban road rainwater collection and treatment system | |
| CN109372088A (en) | A kind of self-closed inlet for stom water of easy cleaning | |
| CN204590230U (en) | A kind of rainwater particle separation and system of regulating and storing | |
| CN106013388B (en) | Municipal rain processing system | |
| CN209975673U (en) | Anti-blocking drainage pipeline | |
| WO2019061869A1 (en) | Integrated rainwater treatment device | |
| CN207079707U (en) | A kind of early-stage rainwater is collected and shunting processing unit | |
| CN106958287A (en) | A kind of the biological of early-stage rainwater that handle is detained cell system | |
| CN207436209U (en) | A kind of municipal works multiple filtration gutter inlet device | |
| CN207429843U (en) | A kind of low water damage dmp filter pond | |
| CN106902569B (en) | A kind of collection pretreatment system of city overland runoff initial rainwater | |
| CN111535416B (en) | Sponge urban rainwater source control system and process based on delay adjustment technology | |
| CN105239659B (en) | Municipal drainage system | |
| CN211228807U (en) | Novel centrifugal type anti-blocking rainwater inlet | |
| CN108360646B (en) | Comprehensive pipe rack rainwater filtering, pollution discharging and regulating device | |
| CN105155665B (en) | A kind of municipal drainage system | |
| CN102518200A (en) | Slab culvert sewage intercepting well | |
| CN202730942U (en) | Drainage ditch cover plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU DRAINAGE MANAGEMENT BUREAU Effective date: 20140818 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140818 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili of Tsinghua Patentee after: Graduate School at Shenzhen, Tsinghua University Patentee after: Changzhou Drainage Management Bureau Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili of Tsinghua Patentee before: Graduate School at Shenzhen, Tsinghua University |