CN109205826A - A kind of noise reduction filtration equipment for clarifying for building rainwater - Google Patents
A kind of noise reduction filtration equipment for clarifying for building rainwater Download PDFInfo
- Publication number
- CN109205826A CN109205826A CN201810985017.5A CN201810985017A CN109205826A CN 109205826 A CN109205826 A CN 109205826A CN 201810985017 A CN201810985017 A CN 201810985017A CN 109205826 A CN109205826 A CN 109205826A
- Authority
- CN
- China
- Prior art keywords
- rainwater
- cover
- filtration cover
- separator box
- clarifying
- 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.)
- Withdrawn
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 76
- 230000009467 reduction Effects 0.000 title claims abstract description 14
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 17
- 231100000719 pollutant Toxicity 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims abstract description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000001954 sterilising effect Effects 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000000645 desinfectant Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001237160 Kallima inachus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of noise reduction filtration equipment for clarifying for building rainwater, cover, pollutant discharge tube, draining pond and rainwater purification case are accepted including rainwater collection collector, rainwater separator box, by-pass filtration cover, secondary filtration cover, rainwater, rainwater separator box top is fixed with rainwater collection collector, by-pass filtration cover is installed in rainwater separator box below the rainwater discharge outlet of rainwater-collecting bottom of the tube, by-pass filtration cover bottom is equipped with secondary filtration cover, and secondary filtration cover is fixed on rainwater and accepts cover upper end；Rainwater is flow on by-pass filtration cover, after by-pass filtration cover filters for the first time, sundries is intercepted, rainwater flow to the secondary filtration cover of lower section, it is filtered again by secondary filtration cover, last rainwater flow to rainwater and accepts in cover, improves the efficiency of dmp filter, and rainwater has the effect of washing away, and avoids sundries blocking by-pass filtration cover and secondary filtration cover；Easy to operate, muting function is good, has the function of filtering and purifying rainwater well, realizes the separation of sundries in rainwater.
Description
Technical field
The present invention relates to Architectural Equipment technical fields, more specifically, it relates to which a kind of noise reduction for building rainwater is cleaned
Filter device.
Background technique
With the quickening of urbanization process, urban architecture area is increasing, causes urban rainwater permeability not strong, increases
The load of municipal drainage facility.Rainwater becomes the important composition portion for solving water resources shortage as a kind of important freshwater resources
Point.It is such as set frequently with building roof Accumulated Rainwater due to being mingled with a large amount of suspended matter or particulate matter in initial rainwater at present
Branch, dead leaf, plastic products, foam, crushed stone etc. cause impurity in initial rainwater excessively directly can not lay in or purify benefit
With needing for rainwater to be filtered rear further purified treatment.It is carried out at dmp filter frequently with flase floor or filter screen at present
Reason needs to carry out avoiding flase floor or mistake to eliminating impurities using manpower or machinery although effectively filtering out sundries in rainwater
Filter net jam needs to consume a large amount of manpowers or electric power etc., and deslagging effect is poor, and underwater sound noise is serious, is unable to satisfy environmental protection and energy saving
Needs, need to improve existing building rainwater primarily efficient filter slag-draining device, with meet building rainwater process demand.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of noise reduction purification filtering for building rainwater
Device, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of noise reduction filtration equipment for clarifying for building rainwater, including rainwater collection collector, rainwater separator box, by-pass filtration cover, second level
Filter mantle, rainwater accept cover, pollutant discharge tube, draining pond and rainwater purification case, rainwater separator box top and are fixed with rainwater-collecting
Pipe, rainwater-collecting tube top end are set as rainwater inflow entrance, and rainwater-collecting bottom of the tube is set as rainwater discharge outlet, below rainwater discharge outlet
By-pass filtration cover is installed, by-pass filtration cover bottom is equipped with secondary filtration cover, and secondary filtration cover is fixed on rain in rainwater separator box
Water accepts cover upper end, and rainwater accepts cover bottom and connects rainwater diversion pipe, and the rainwater input port of rainwater diversion pipe is connected to rainwater purification
The rainwater cushion chamber of case is sequentially installed with three-stage filtration net, activated carbon adsorption layer in the rainwater purification case of rainwater cushion chamber side
And filter membrane, it is set as sterilization pool in the rainwater purification case of the filter membrane other side, disinfectant adding mouth, disinfection are equipped with above sterilization pool
Pond is connected to pure water pipe, and rainwater separator box bottom connects draining pond, interception strainer is equipped between rainwater separator box and draining pond, is blocked
The online side of cut-off filter is equipped with helical blade, and helical blade welds on the rotary shaft, and rotary shaft another point is threaded through in pollutant discharge tube.
Further, the rainwater separator box top middle portion is fixed with rainwater collection collector by fixed ring, and rainwater collection collector is worn
It is located in fixed ring and is mutually welded with fixed ring inner wall, fixed ring outer wall is mutually welded with rainwater separator box.
Further, it is connected between the by-pass filtration cover and secondary filtration cover by support rod, by-pass filtration cover and second level
Filter mantle is set as dirt discharge groove between bottom side.
Further, catch basin is set as in the draining pond, catch basin falls chamber with the sundries punching inside rainwater separator box and is connected to.
Further, the side of rainwater separator box is arranged in the pollutant discharge tube, and rotary shaft is pierced by pollutant discharge tube connection servo motor
Motor shaft, pollutant discharge tube bottom side connects sundries delivery pipe, is equipped with sundries drain valve on sundries delivery pipe.
Further, draining bottom of pond side connects drainpipe, and drainpipe is connected to rainwater cushion chamber, sewage pipe by sewage pipe
On blowdown valve is installed.
Further, the rainwater-collecting inside pipe wall and draining inside pipe wall are equipped with several spiral bars.
In conclusion compared with the prior art, the invention has the following beneficial effects:
The present invention has the function of water conservancy diversion, makes by being equipped with several spiral bars in rainwater-collecting inside pipe wall and draining inside pipe wall
It obtains rainwater to flow along inner wall of the pipe, have the function of mute；Rainwater is flow on by-pass filtration cover, by the first mistake of by-pass filtration cover
After filter, sundries is intercepted, and rainwater flow to the secondary filtration cover of lower section, is filtered again by secondary filtration cover, last rainwater flow to rain
Water accept cover in, improve the efficiency of dmp filter, and rainwater has the effect of washing away, avoid sundries blocking by-pass filtration cover with
Secondary filtration cover；Helical blade rotation, will fall and intercept the sundries discharge that drip on strainer removes rainwater, and sundries discharge is convenient；It is convenient for
Three-stage filtration net is trapped in dirt in rainwater cushion chamber by sewage pipe and is expelled to drainpipe, together with the rainwater that sundries drip removes
Discharge, easy to operate, muting function is good, has the function of filtering and purifying rainwater well, realizes sundries in rainwater
Separation.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to this hair
It is bright to be described in detail.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of filter mantle in the present invention.
Fig. 3 is the structural schematic diagram of pollutant discharge tube in the present invention.
Appended drawing reference: 1- rainwater collection collector, 2- spiral bar, 3- rainwater inflow entrance, 4- rainwater discharge outlet, 5- fixed ring, 6-
Rainwater separator box, 7- by-pass filtration cover, 8- support rod, 9- secondary filtration cover, 10- dirt discharge groove, 11- rainwater accept cover, 12- rainwater
Diversion pipe, the punching of 13- sundries fall chamber, 14- rainwater input port, 15- pollutant discharge tube, 16- helical blade, 17- rotary shaft, 18- interception filter
Net, 19- draining pond, 20- catch basin, 21- drainpipe, 22- sewage pipe, 23- blowdown valve, 24- rainwater cushion chamber, 25- three-level mistake
Strainer, 26- activated carbon adsorption layer, 27- filter membrane, 28- sterilization pool, 29- pure water pipe, 30- rainwater purification case, 31- servo motor,
32- sundries drain valve, 33- sundries delivery pipe.
Specific embodiment
The following further describes the technical solution of the present invention in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1-3, it is a kind of build rainwater noise reduction filtration equipment for clarifying, including rainwater collection collector 1, rainwater separator box 6,
By-pass filtration cover 7, secondary filtration cover 9, rainwater accept cover 11, pollutant discharge tube 15, draining pond 19 and rainwater purification case 30, the rainwater
6 top middle portion of separator box is fixed with rainwater collection collector 1 by fixed ring 5, rainwater collection collector 1 be threaded through in fixed ring 5 and with it is solid
Determine 5 inner wall of ring mutually to weld, 5 outer wall of fixed ring is welded with 6 phase of rainwater separator box, and 1 top of rainwater collection collector is set as rainwater inflow entrance
3,1 bottom of rainwater collection collector is set as rainwater discharge outlet 4, and 1 inner wall of rainwater collection collector is equipped with several spiral bars 2, and spiral bar 2, which has, leads
The function of stream has the function of mute so that rainwater is flowed along 1 inner wall of rainwater collection collector.
By-pass filtration cover 7 is installed in the rainwater separator box 6 of 4 lower section of rainwater discharge outlet, 7 bottom of by-pass filtration cover is set
There is secondary filtration cover 9, secondary filtration cover 9 is fixed on rainwater and accepts 11 upper ends of cover, between by-pass filtration cover 7 and secondary filtration cover 9
It is connected by support rod 8, by-pass filtration cover 7 and secondary filtration cover are set as dirt discharge groove 10 between 9 bottom side, when rainwater is discharged by rainwater
When mouth 4 is fallen, rainwater is flow on by-pass filtration cover 7, and after by-pass filtration cover 7 for the first time filtering, sundries is intercepted, and rainwater is flow to
The secondary filtration cover 9 of lower section, is filtered again by secondary filtration cover 9, and last rainwater flow to rainwater and accepts in cover 11, improves rainwater mistake
The efficiency of filter, and rainwater has the effect of washing away, and avoids sundries blocking by-pass filtration cover 7 and secondary filtration cover 9.
The rainwater accepts 11 bottoms of cover and connects rainwater diversion pipe 12, and the rainwater input port 14 of rainwater diversion pipe 12 is connected to rain
The rainwater cushion chamber 24 of Water warfare case 30 is sequentially installed with three-stage filtration net in the rainwater purification case 30 of 24 side of rainwater cushion chamber
25, activated carbon adsorption layer 26 and filter membrane 27 are set as sterilization pool 28, sterilization pool in the rainwater purification case 30 of 27 other side of filter membrane
28 tops are equipped with disinfectant adding mouth, and sterilization pool 28 is connected to pure water pipe 29.
6 bottom of rainwater separator box connects draining pond 19, is set as catch basin 20, catch basin 20 and rainwater in draining pond 19
Sundries punching inside separator box 6 falls the connection of chamber 13, is equipped between rainwater separator box 6 and draining pond 19 and intercepts strainer 18, intercepts
Helical blade 16 is installed, helical blade 16 is welded in rotary shaft 17, and 17 another point of rotary shaft is threaded through row on the upside of strainer 18
In dirty cylinder 15, the side of rainwater separator box 6 is arranged in pollutant discharge tube 15, and rotary shaft 17 is pierced by pollutant discharge tube 15 and connects servo motor 31
Motor shaft, 15 bottom side of pollutant discharge tube connect sundries delivery pipe 33, are equipped with sundries drain valve 32 on sundries delivery pipe 33, when servo electricity
After machine 31 starts, motor shaft drives rotary shaft 17 and helical blade 16 to rotate, and will fall and drip on interception strainer 18 except rainwater
Sundries discharge.
19 bottom side of draining pond connects drainpipe 21, and drainpipe 21 is connected to rainwater cushion chamber 24 by sewage pipe 22, dirty
Blowdown valve 23 is installed on water pipe 22, opens blowdown valve 23, convenient for three-stage filtration net 25 is trapped in rainwater by sewage pipe 22
Dirt is expelled to drainpipe 21 in cushion chamber 24, is discharged together with the rainwater that sundries drip removes, easy to operate, muting function
It is good, have the function of filtering and purifying rainwater well, realizes the separation of sundries in rainwater.
Preferably, in the present embodiment, 21 inner wall of drainpipe is equipped with the spiral bar 2 of several spirals, has and leads
Stream and mute function.
The technical principle of the invention is described above in combination with a specific embodiment, is only the preferred embodiment of the present invention.This
The protection scope of invention is not limited merely to above-described embodiment, and all technical solutions belonged under thinking of the present invention belong to the present invention
Protection scope.Those skilled in the art, which does not need to pay for creative labor, can associate other specific realities of the invention
Mode is applied, these modes will fall within the scope of protection of the present invention.
Claims (7)
1. a kind of noise reduction filtration equipment for clarifying for building rainwater, including rainwater collection collector (1), rainwater separator box (6), by-pass filtration
(7), secondary filtration cover (9), rainwater undertaking cover (11), pollutant discharge tube (15), draining pond (19) and rainwater purification case (30) are covered, it is special
Sign is that rainwater separator box (6) top is fixed with rainwater collection collector (1), and rainwater collection collector (1) top is set as rainwater inflow
Mouth (3), rainwater collection collector (1) bottom are set as rainwater discharge outlet (4), peace in the rainwater separator box (6) below rainwater discharge outlet (4)
Equipped with by-pass filtration cover (7), by-pass filtration cover (7) bottom is equipped with secondary filtration cover (9), and secondary filtration cover (9) is fixed on rainwater
Cover (11) upper end is accepted, rainwater accepts cover (11) bottom connection rainwater diversion pipe (12), the rainwater input of rainwater diversion pipe (12)
The rainwater purification case (30) of the rainwater cushion chamber (24) of mouth (14) connection rainwater purification case (30), rainwater cushion chamber (24) side is interior
It is sequentially installed with three-stage filtration net (25), activated carbon adsorption layer (26) and filter membrane (27), the rainwater of filter membrane (27) other side
It is set as sterilization pool (28) in purifying box (30), disinfectant adding mouth is equipped with above sterilization pool (28), sterilization pool (28) is connected to water purification
It manages (29), rainwater separator box (6) bottom connects draining pond (19), is equipped with and blocks between rainwater separator box (6) and draining pond (19)
Cut-off filter net (18) is intercepted and is equipped with helical blade (16) on the upside of strainer (18), and helical blade (16) is welded on rotary shaft (17),
Rotary shaft (17) another point is threaded through in pollutant discharge tube (15).
2. a kind of noise reduction filtration equipment for clarifying for building rainwater according to claim 1, which is characterized in that the rainwater point
It is fixed with rainwater collection collector (1) from case (6) top middle portion by fixed ring (5), rainwater collection collector (1) is threaded through fixed ring (5)
Interior and mutually weld with fixed ring (5) inner wall, fixed ring (5) outer wall is mutually welded with rainwater separator box (6).
3. a kind of noise reduction filtration equipment for clarifying for building rainwater according to claim 1, which is characterized in that the level-one mistake
It is connected between filter bowl (7) and secondary filtration cover (9) by support rod (8), by-pass filtration cover (7) and secondary filtration cover (9) bottom side
Between be set as dirt discharge groove (10).
4. a kind of noise reduction filtration equipment for clarifying for building rainwater according to claim 1, which is characterized in that the draining pond
(19) it is set as catch basin (20) in, catch basin (20) the sundries punching internal with rainwater separator box (6) falls chamber (13) and be connected to.
5. a kind of noise reduction filtration equipment for clarifying for building rainwater according to claim 1, which is characterized in that the pollutant discharge tube
(15) it is arranged in the side of rainwater separator box (6), rotary shaft (17) is pierced by the motor of pollutant discharge tube (15) connection servo motor (31)
Axis, pollutant discharge tube (15) bottom side connect sundries delivery pipe (33), are equipped with sundries drain valve (32) on sundries delivery pipe (33).
6. a kind of noise reduction filtration equipment for clarifying for building rainwater according to claim 1, which is characterized in that the draining pond
(19) bottom side connection drainpipe (21), drainpipe (21) pass through sewage pipe (22) connection rainwater cushion chamber (24), sewage pipe (22)
On blowdown valve (23) are installed.
7. a kind of noise reduction filtration equipment for clarifying for building rainwater according to claim 1, which is characterized in that the rainwater collection
Collector (1) inner wall and drainpipe (21) inner wall are equipped with several spiral bars (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810985017.5A CN109205826A (en) | 2018-08-28 | 2018-08-28 | A kind of noise reduction filtration equipment for clarifying for building rainwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810985017.5A CN109205826A (en) | 2018-08-28 | 2018-08-28 | A kind of noise reduction filtration equipment for clarifying for building rainwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109205826A true CN109205826A (en) | 2019-01-15 |
Family
ID=64985974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810985017.5A Withdrawn CN109205826A (en) | 2018-08-28 | 2018-08-28 | A kind of noise reduction filtration equipment for clarifying for building rainwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109205826A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510788A (en) * | 2019-08-30 | 2019-11-29 | 李桂军 | A kind of sponge urban rainwater harvests purification device |
| CN112728270A (en) * | 2020-12-28 | 2021-04-30 | 安徽蓝通科技股份有限公司 | Be used for stifled filterable connecting piece of PVC union coupling can prevent |
| CN114457962A (en) * | 2022-01-22 | 2022-05-10 | 深圳市隆金达实业有限公司 | Rainwater collecting and treating system |
-
2018
- 2018-08-28 CN CN201810985017.5A patent/CN109205826A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510788A (en) * | 2019-08-30 | 2019-11-29 | 李桂军 | A kind of sponge urban rainwater harvests purification device |
| CN112728270A (en) * | 2020-12-28 | 2021-04-30 | 安徽蓝通科技股份有限公司 | Be used for stifled filterable connecting piece of PVC union coupling can prevent |
| CN114457962A (en) * | 2022-01-22 | 2022-05-10 | 深圳市隆金达实业有限公司 | Rainwater collecting and treating system |
| CN114457962B (en) * | 2022-01-22 | 2024-04-12 | 深圳市隆金达实业有限公司 | Rainwater collecting and processing system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190115 |
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| WW01 | Invention patent application withdrawn after publication |