CN104695533A - Seepage and drainage pipe channel system - Google Patents
Seepage and drainage pipe channel system Download PDFInfo
- Publication number
- CN104695533A CN104695533A CN201510050785.8A CN201510050785A CN104695533A CN 104695533 A CN104695533 A CN 104695533A CN 201510050785 A CN201510050785 A CN 201510050785A CN 104695533 A CN104695533 A CN 104695533A
- Authority
- CN
- China
- Prior art keywords
- basin
- catch
- ooze
- rainwater
- sewer system
- 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.)
- Pending
Links
- 230000008595 infiltration Effects 0.000 claims abstract description 42
- 238000001764 infiltration Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 44
- 239000004576 sand Substances 0.000 claims description 22
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 239000011449 brick Substances 0.000 claims description 10
- 239000004746 geotextile Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 abstract description 12
- 238000001914 filtration Methods 0.000 abstract description 9
- 238000000746 purification Methods 0.000 abstract description 7
- 239000003673 groundwater Substances 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract 1
- 239000013589 supplement Substances 0.000 abstract 1
- 238000012384 transportation and delivery Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000003895 groundwater pollution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000003900 soil pollution Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Abstract
The invention relates to the technical field of municipal engineering, in particular to a seepage and drainage pipe channel, specifically to a seepage and drainage pipe channel system for comprehensive utilization of rainwater. The seepage and drainage pipe channel system is suitable for new and reconstructed rainwater pipe networks of areas, wherein soils of the areas have a certain water seepage capacity; the seepage and drainage pipe channel system has integrated functions of rainwater collection, detention storage, purification, delivery, infiltration and discharge, can protect the land resources, reduce the peak flow, delay the occurrence of flood peak, implement the deep filtration and purification of rainwater, supplement the groundwater, and improve the soil moisture and air humidity, while the system overcomes the shortcomings of an existing rainwater drainage system fundamentally, fully reflects the concept of low-impact development, maintains the natural hydrological cycle, and repairs the ecological environment.
Description
Technical field
The present invention relates to municipal engineering technical field, particularly relate to one and ooze sewer, particularly a kind of rainwater comprehensive utilization ooze sewer system.
Background technology
At present, global energy, water resources shortage, the place of lack of water is a lot of all over the world, the drinking water of a lot of water-deficient area people has become problem, in order to solve the water shortage problem in these areas, and a lot of regional sink wells, but underground water is still short, these wells are often by the maintenance such as rainwater, river, and water quality through filtering, is not suitable for drinking; Water can be limpider after long-time heavy collection, but the time long water capacity easily fouls, rotten; And permeate the ground soon by the well water that rainwater maintains, or evaporate.
Traditional way has: one is steel reinforced concrete pool, its long construction period, to landform require high, can not suit measures to local conditions, can not filtering and purifying water, water quality easily degenerates, two is PE plastic module reservoirs, can not filtering and purifying water, water quality easily degenerates, and stability is bad, the area that groundwater table is higher, anti-floating power is bad.Prior art products mainly relies on gap, macrovoid permeable, or the material that water permeability is bad, has had a strong impact on the infiltrating of rainwater, stagnantly to have stored and water quality, and the bad easy polluted underground water of filter effect.Now assembled, the concreting of large multiplex polyethylene in the art, produces material and need consume the resources such as a large amount of rock, soil, to destroy local environment for cost when exploitation or exploitation, and if polyethylene be decomposed and easily cause soil or groundwater pollution.
In view of the defect of above-mentioned prior art, what need to provide a kind of rainwater comprehensive utilization oozes sewer system.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is that existing large multiplex polyethylene is in the art assembled, concreting, produce material and need consume the resources such as a large amount of rock, soil, to destroy local environment for cost when exploitation or exploitation, if and polyethylene is decomposed and easily causes soil or groundwater pollution, and mainly rely on gap, macrovoid permeable, or the material that water permeability is bad, have a strong impact on the infiltrating of rainwater, stagnantly store the problem with water quality.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides one and ooze sewer system, it comprises:
Catch-basin, the borehole wall of described catch-basin is permeable structure, and shaft bottom is impermeable structure;
Infiltration well, the borehole wall and the shaft bottom of described infiltration well are permeable structure;
Macadam and permeable geotextiles is provided with all successively at described catch-basin and all sides and bottom permeating well; Described catch-basin is connected with water inlet pipe, and described catch-basin is communicated with by perforated pipe with infiltration well, and described infiltration well is also connected with outlet pipe.
Further, the borehole wall of described catch-basin, the borehole wall and the shaft bottom of infiltration well all adopt silica sand water-permeable brick to make.
Further, the infiltration rate of described silica sand water-permeable brick is more than or equal to 5 × 10
-4m/s.
Further, described perforated pipe is connected to the top of described catch-basin and infiltration well, and is obliquely installed in macadam.
Further, described perforated pipe connects the height of catch-basin one end higher than the height connecting infiltration well one end.
Further, the angle of described perforated pipe and horizontal plane is 15 °-35 °.
Further, in described catch-basin, sand setting baffle plate is provided with.
Further, described sand setting baffle plate is arranged along the axis of described catch-basin, and correspondingly with water inlet pipe arranges.
Further, above described macadam, also coarse sands layer and back fill course is provided with successively from bottom to up.
Further, be equipped with well lid at the top of described catch-basin and infiltration well, described well lid is permeable structure.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: the invention provides a kind of infiltration-drainage pipe duct for comprehensive utilization of rainwater system, be applicable to soil and have the newly-built of certain percolating water ability area and the Storm Sewer Network of reconstructing, it is by catch-basin and infiltration well, there is rainwater-collecting, stagnantly to store, purification, conveying, infiltrate, discharge comprehensive function, land resources can be protected, flood peak clipping flow, delay the time that flood peak occurs, depth-type filtration purifying rainwater, recharge of groundwater, improve moisture content and the air humidity of soil, also fundamentally overcome the deficiency of existing drainage system against rain simultaneously, fully demonstrating lowly affects utility strategies, maintain nature hydrologic cycle, repair ecological environment.
Accompanying drawing explanation
Fig. 1 is the structural representation that the embodiment of the present invention oozes sewer system;
Fig. 2 is the sectional view of A-A in Fig. 1.
In figure: 1: water inlet pipe; 2: catch-basin; 3: sand setting baffle plate; 4: perforated pipe; 5: macadam; 6: permeable geotextiles; 7: infiltration well; 8: coarse sands layer; 9: back fill course; 10: outlet pipe.
Detailed description of the invention
In describing the invention, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the machine of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As depicted in figs. 1 and 2, the one that the embodiment of the present invention provides oozes sewer system, and it comprises: catch-basin 2 and infiltration well 7.The borehole wall of described catch-basin 2 is permeable structure, and shaft bottom is impermeable structure; The borehole wall and the shaft bottom of described infiltration well 7 are permeable structure.
Macadam 5 and permeable geotextiles 6 is provided with all successively at described catch-basin 2 and all sides and bottom permeating well 7; Described catch-basin 2 is connected with water inlet pipe 1, and described catch-basin 2 is communicated with by perforated pipe 4 with infiltration well 7, and described infiltration well 7 is also connected with outlet pipe 10.
Obviously, described catch-basin 2 is set to one usually, and infiltration well 7 can arrange multiple, and in the present embodiment, catch-basin 2 is one, and infiltration well 7 is two.Be communicated with by perforated pipe 4 between two infiltration wells 7.
Described catch-basin 2 and the borehole wall, the borehole wall and the shaft bottom of infiltration well 7 all adopt silica sand water-permeable brick to make.Adopt the silica sand seepy material of ecological, environmental protective, permeable by micropore, make to ooze sewer water permeable ability strong, filter, retain, purifying rainwater Be very effective.Can play the effect of filtration and purifying rainwater like this, the rainwater entering catch-basin 2 and infiltration well 7 penetrates into underground, recharge of groundwater by these silica sand water-permeable bricks, improves moisture content and the air humidity of soil.
Solving existing product by silica sand water-permeable brick relies on macrovoid permeable, and anti-floating, anti-pressure ability are poor, easily pollute local water and soil resources or the difficult problem of secondary pollution.
Sewer system of oozing of the present invention adopts silica sand water-permeable brick to make, i.e. modularization assembling, size and large I customize according to customer demand.The convenient later maintenance of native system, is applicable to newly-built and reconstruction and extension project.
The composition of above-mentioned silica sand water-permeable brick is that fine sand and resin adhesive mix, and described resin adhesive is hydrophilic resin bonding agent at least partly, the particle of described fine sand is 0.07mm-2mm, and the infiltration rate of described silica sand water-permeable brick is more than or equal to 5 × 10
-4m/s.
Common, described perforated pipe 4 is connected to the top of described catch-basin 2 and infiltration well 7, and is obliquely installed in macadam 5.Why be arranged at the top of described catch-basin 2 and infiltration well 7, in order to rainwater can be made to enter into catch-basin 2 and infiltration well 7 smoothly, when water water is few, in catch-basin 2, only just can play the effect of filtration, purification, when rainwater is more, infiltration well 7 can be entered into by perforated pipe 4 to filter, enter municipal drainage pipeline or rivers and lakes etc. finally by outlet pipe 10.
As can be seen here, sewer system of oozing of the present invention has rainwater-collecting, stagnantly to store, purify, carries, infiltrates, discharges comprehensive function, is oozed sewer system and can be maintained nature hydrologic cycle, repair ecological environment by this.Solve Urban Rainwater Pipe Networks collect less than or can not draining in time and cause urban pavement ponding or a urban waterlogging difficult problem, simultaneously perfect urban rainwater drainage system, achieves rain water purification, stagnantly to store, recycles.And effectively cover underground water after rainwater purification, decrease the exploitation of groundwater resources.
What the present embodiment provided oozes sewer system has very high clearance to pollutant.Pollutants removal rate is as shown in table 1.
Table 1
In order to better realize the flowing of rainwater in described catch-basin 2 and infiltration well 7, described perforated pipe 4 connects the height of catch-basin 2 one end higher than the height connecting infiltration well 7 one end.Be more preferably, described perforated pipe 4 is 15 °-35 ° with the angle of horizontal plane.When perforated pipe 4 is 15 °-35 ° with the angle of horizontal plane, rainwater can flow smoothly.
In order to stop impurity particle etc. larger in rainwater, in described catch-basin 2, be provided with sand setting baffle plate 3, described sand setting baffle plate 3 is arranged along the axis of described catch-basin 2, and correspondingly with water inlet pipe 1 arranges.Why sand setting baffle plate 3 is corresponding with water inlet pipe 1 is arranged, and is to make the rainwater carrying larger impurity particle in water inlet pipe 1 directly enter in perforated pipe 4, thus blocking perforated pipe 4.Impurity particle larger in rainwater is made to drop on bottom in catch-basin 2 by sand setting baffle plate 3, the reason of this to be also the shaft bottom of catch-basin 2 be impermeable structure, the shaft bottom of catch-basin 2 can deposit some larger impurity particles, and the time needs these larger impurity particles to remove for a long time afterwards.
Common, in order to ensure the infiltration of bottom surface rainwater, above described macadam 5, be also provided with coarse sands layer 8 and back fill course 9 successively from bottom to up.The rain penetration on ground can be made like this to get off, and the filtration through macadam 5 and permeable geotextiles 6 enters underground, fills up underground water.
In order to the larger impurity particle etc. be deposited in catch-basin 2 can be removed, or in order to observe the water level etc. in catch-basin 2 and infiltration well 7, general, well lid is equipped with at the top of described catch-basin 2 and infiltration well 7, described well lid is permeable structure, also can be collected, filter, purifies some rainwater by this permeable structure.
In sum, the present invention has the following advantages: the invention provides a kind of infiltration-drainage pipe duct for comprehensive utilization of rainwater system, be applicable to soil and have the newly-built of certain percolating water ability area and the Storm Sewer Network of reconstructing, it is by catch-basin and infiltration well, there is rainwater-collecting, stagnantly to store, purification, conveying, infiltrate, discharge comprehensive function, land resources can be protected, flood peak clipping flow, delay the time that flood peak occurs, depth-type filtration purifying rainwater, recharge of groundwater, improve moisture content and the air humidity of soil, also fundamentally overcome the deficiency of existing drainage system against rain simultaneously, fully demonstrating lowly affects utility strategies, maintain nature hydrologic cycle, repair ecological environment.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. ooze a sewer system, it is characterized in that: comprising:
Catch-basin (2), the borehole wall of described catch-basin (2) is permeable structure, and shaft bottom is impermeable structure;
Infiltration well (7), the borehole wall and the shaft bottom of described infiltration well (7) are permeable structure;
Described catch-basin (2) and infiltration well (7) all sides and bottom be provided with macadam (5) and permeable geotextiles (6) all successively; Described catch-basin (2) is connected with water inlet pipe (1), described catch-basin (2) is communicated with by perforated pipe (4) with infiltration well (7), and described infiltration well (7) is also connected with outlet pipe (10).
2. according to claim 1ly ooze sewer system, it is characterized in that: the borehole wall of described catch-basin (2), the borehole wall and the shaft bottom of infiltration well (7) all adopt silica sand water-permeable brick to make.
3. according to claim 2ly ooze sewer system, it is characterized in that: the infiltration rate of described silica sand water-permeable brick is more than or equal to 6.8 × 10
-2cm/s.
4. according to claim 1ly ooze sewer system, it is characterized in that: described perforated pipe (4) is connected to the top of described catch-basin (2) and infiltration well (7), and is obliquely installed in macadam (5).
5. according to claim 4ly ooze sewer system, it is characterized in that: described perforated pipe (4) connects the height of catch-basin (2) one end higher than the height connecting infiltration well (7) one end.
6. according to claim 5ly ooze sewer system, it is characterized in that: described perforated pipe (4) is 15 °-35 ° with the angle of horizontal plane.
7. according to claim 1ly ooze sewer system, it is characterized in that: in described catch-basin (2), be provided with sand setting baffle plate (3).
8. according to claim 7ly ooze sewer system, it is characterized in that: described sand setting baffle plate (3) is arranged along the axis of described catch-basin (2), and correspondingly with water inlet pipe (1) to arrange.
9. according to claim 1ly ooze sewer system, it is characterized in that: be also provided with coarse sands layer (8) and back fill course (9) from bottom to up successively in the top of described macadam (5).
10. according to any one of claim 1-9, ooze sewer system, it is characterized in that: be equipped with well lid at the top of described catch-basin (2) and infiltration well (7), described well lid is permeable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050785.8A CN104695533A (en) | 2015-01-30 | 2015-01-30 | Seepage and drainage pipe channel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050785.8A CN104695533A (en) | 2015-01-30 | 2015-01-30 | Seepage and drainage pipe channel system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104695533A true CN104695533A (en) | 2015-06-10 |
Family
ID=53343045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510050785.8A Pending CN104695533A (en) | 2015-01-30 | 2015-01-30 | Seepage and drainage pipe channel system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104695533A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105794523A (en) * | 2016-04-11 | 2016-07-27 | 重庆大学 | Tree pool device with rainwater infiltration, storage and purification functions |
| CN106368299A (en) * | 2015-07-24 | 2017-02-01 | 北京仁创生态环保科技股份公司 | Water filter well built by solid bricks |
| CN106368301A (en) * | 2015-07-24 | 2017-02-01 | 北京仁创生态环保科技股份公司 | Water filter well built by hollow bricks |
| CN106555430A (en) * | 2017-01-04 | 2017-04-05 | 肖刚 | Heat-extraction system is received in a kind of sponge type rain penetration |
| CN107217728A (en) * | 2017-07-28 | 2017-09-29 | 山东毅康科技股份有限公司 | One kind is used for sponge city double-layer drainage pipeline sump device and catchment method |
| CN110786094A (en) * | 2019-11-04 | 2020-02-14 | 河海大学 | Integrated isolation pad and method for saline-alkali soil double-S-shaped drainage and salt control pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304436A (en) * | 1983-12-23 | 1985-07-16 | Wavin Bv | Rain water and sewage system for dwelling - includes buffer tank with over flow and by=pass between rain-water drain and buffer tank |
| CN201539012U (en) * | 2009-12-11 | 2010-08-04 | 北京泰宁科创科技有限公司 | Infiltration-drainage pipe duct for comprehensive utilization of rainwater |
| CN202450610U (en) * | 2012-02-06 | 2012-09-26 | 重庆大学 | Rainwater-collecting and contaminant-intercepting system for environment-friendly residential building |
-
2015
- 2015-01-30 CN CN201510050785.8A patent/CN104695533A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304436A (en) * | 1983-12-23 | 1985-07-16 | Wavin Bv | Rain water and sewage system for dwelling - includes buffer tank with over flow and by=pass between rain-water drain and buffer tank |
| CN201539012U (en) * | 2009-12-11 | 2010-08-04 | 北京泰宁科创科技有限公司 | Infiltration-drainage pipe duct for comprehensive utilization of rainwater |
| CN202450610U (en) * | 2012-02-06 | 2012-09-26 | 重庆大学 | Rainwater-collecting and contaminant-intercepting system for environment-friendly residential building |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368299A (en) * | 2015-07-24 | 2017-02-01 | 北京仁创生态环保科技股份公司 | Water filter well built by solid bricks |
| CN106368301A (en) * | 2015-07-24 | 2017-02-01 | 北京仁创生态环保科技股份公司 | Water filter well built by hollow bricks |
| CN106368300A (en) * | 2015-07-24 | 2017-02-01 | 北京仁创生态环保科技股份公司 | Water filter well built by hollow bricks |
| CN106368299B (en) * | 2015-07-24 | 2019-03-05 | 仁创生态环保科技股份有限公司 | Solid brick water filter well |
| CN106368301B (en) * | 2015-07-24 | 2019-03-05 | 仁创生态环保科技股份有限公司 | Water filter well made of hollow bricks |
| CN106368300B (en) * | 2015-07-24 | 2019-03-05 | 仁创生态环保科技股份有限公司 | Water filter well made of hollow bricks |
| CN105794523A (en) * | 2016-04-11 | 2016-07-27 | 重庆大学 | Tree pool device with rainwater infiltration, storage and purification functions |
| CN105794523B (en) * | 2016-04-11 | 2019-05-21 | 重庆大学 | A tree pond device with rainwater storage and purification function |
| CN106555430A (en) * | 2017-01-04 | 2017-04-05 | 肖刚 | Heat-extraction system is received in a kind of sponge type rain penetration |
| CN107217728A (en) * | 2017-07-28 | 2017-09-29 | 山东毅康科技股份有限公司 | One kind is used for sponge city double-layer drainage pipeline sump device and catchment method |
| CN110786094A (en) * | 2019-11-04 | 2020-02-14 | 河海大学 | Integrated isolation pad and method for saline-alkali soil double-S-shaped drainage and salt control pipeline |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Applicant after: Anhui Renchuang ecological environmental Polytron Technologies Inc Address before: 100085 room B, block B509, Jiahua building, No. 9, 3rd Street, Beijing, Haidian District Applicant before: Beijing Rechsand Ecological Environment Protection Science and Technology Co., Ltd. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Applicant after: Renchuang ecological environmental protection Polytron Technologies Inc Address before: 246600, No. 1, general road, Yuexi Economic Development Zone, Anqing, Anhui Applicant before: Anhui Renchuang ecological environmental Polytron Technologies Inc |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |