CN204643981U - Underground water pumping aeration treatment system - Google Patents
Underground water pumping aeration treatment system Download PDFInfo
- Publication number
- CN204643981U CN204643981U CN201520292669.2U CN201520292669U CN204643981U CN 204643981 U CN204643981 U CN 204643981U CN 201520292669 U CN201520292669 U CN 201520292669U CN 204643981 U CN204643981 U CN 204643981U
- Authority
- CN
- China
- Prior art keywords
- underground water
- aeration treatment
- treatment system
- extracts
- aeration
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 238000005273 aeration Methods 0.000 title claims abstract description 61
- 238000005086 pumping Methods 0.000 title abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000010802 sludge Substances 0.000 claims abstract description 15
- 239000003673 groundwater Substances 0.000 claims abstract description 10
- 239000000284 extract Substances 0.000 claims description 44
- 239000003651 drinking water Substances 0.000 claims description 15
- 235000020188 drinking water Nutrition 0.000 claims description 15
- 238000013022 venting Methods 0.000 claims description 12
- 239000002689 soil Substances 0.000 abstract description 10
- 230000004888 barrier function Effects 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000000356 contaminant Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000003895 groundwater pollution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000002680 soil gas 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
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Physical Water Treatments (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to an underground water pumping and removing aeration treatment system, which is mainly provided with a pipe body which can be correspondingly arranged in a deep underground, the surface of the pipe body is distributed with a plurality of through holes, a barrier disc is arranged at a proper position in the pipe body to divide the pipe body into an aeration treatment area and an underground water pumping area, a plurality of sieve plates are arranged in the aeration treatment area, a water pumping pipe, a sludge pipe and an aeration pipe are correspondingly arranged on each sieve plate, and the water pumping pipe stretches into the barrier disc to enter the underground water pumping area to pump the deep underground water, then conveys the underground water and sprays the underground water to the pipe body aeration treatment area through a sprayer; therefore, deep groundwater containing volatile organic pollutants is sprayed in the aeration treatment area, meanwhile, gas is input through the aeration pipe for aeration treatment, a sieve plate is arranged in the well, the contact area of the groundwater and air is increased, pollutants dissolved in the water are removed, and the treated water flows back to the shallow stratum, so that the project of soil and groundwater reproduction is achieved.
Description
Technical field
The utility model has and extracts aeration treatment system about a kind of underground water, and espespecially one is used in and carries out aeration in pipe and effectively can process volatility organic dirt in water, reaches the underground water that soil is educated again, underground water renovates effect and extracts aeration treatment system.
Background technology
After domestic formulation soil and groundwater pollution regulation method, the environmental issue relevant to soil and groundwater pollution is subject to government, enterprise and each side personage such as among the people gradually and payes attention to, in the middle of numerous pollution cases, the pollution incident caused with the hydrocarbon polymer of chlorine-containing compound and oil again accounts for the most large, and aforesaid organic solvent all can cause high risks to environment and HUMAN HEALTH.Therefore, the regulation of soil and underground water has been that instant necessity works.But aforesaid organic solvent pole is not easily decomposed by Institute of Micro-biology, therefore often need artificial intervention to come initiatively to renovate, it is normally renovated soil and underground water with chemical oxidization method.With chemical oxidization method, it need provide chemical oxidizing agent for a long time under earth's surface, chemically impels the oxidized decomposition of pollutent to remove.The common engineering method for implanting injected by chemical oxidizing agent under earth's surface comprises: the direct injected system of Injection Well, extract the re-injection recycle system and perviousness regulation wall system etc., wherein again with perviousness regulation wall system for domestic and international developed common underground water remedial technology in recent years.
And just current industry is renovating the common method of underground water as degassing method, oxidation style, extraction process and electric driving method etc., natural ecological resource method or method of chemical treatment (such as adding sodium hydroxide, calcium oxide and calcium carbonate) etc., not only renovate time length and need higher cost, in addition, add alkaline chemical also can make hardness in water increase in acidic groundwater, cause washing difficulty, easily produce incrustation scale etc., have considerable influence for domestic water and process water.
So, in view of this, adhere to the abundant of these relevant industries for many years and design and develop and actual fabrication experience, the disappearance problem for prior art is studied improvement to contriver again, spy provides a kind of underground water to extract aeration treatment system, to reaching the object of better practical value.
Utility model content
The purpose of this utility model is to provide a kind of underground water to extract aeration treatment system, refer in particular to a kind of improvement of the disappearance problem for tradition regulation underground water DeGrain, mainly be used in pipe and carry out aeration, effectively can increase the contact area of underground water and air, acceleration organism volatilizees, and reaches effect that soil is educated again, underground water is renovated.
The utility model underground water extracts the object of aeration treatment system and effect realized by following technology:
Described underground water extracts aeration treatment system and includes:
One body, it is corresponding hollow tube of inserting the deep layer end, ground, and this tube surfaces is distributed with multiple open-work;
One obstruct dish, its correspondence is arranged in body, and tubular body separated by spaces is that Air Exposure district and underground water extract district by this obstruct dish, and this obstruct dish is provided with a perforation;
Multiple sieve tray, its corresponding Air Exposure district be arranged in body that distributes, distribute on each this sieve tray porose, each this sieve tray is provided with the first through hole, the second through hole;
One drinking-water pipe, its corresponding perforation through the first through hole on multiple sieve tray and obstruct dish, this drinking-water pipe one end is positioned at underground water and extracts district, this drinking-water pipe the other end correspondence connects the power motor of a groundwater abstraction, this power motor links a spray gun by the road, and this spray gun is arranged at the position, top in body Air Exposure district;
One aeration tube, it is corresponding to the second through hole on multiple sieve tray, and this aeration tube is positioned at Air Exposure district, carries out Air Exposure with delivering gas.
Underground water as above extracts aeration treatment system, is provided with a third through-hole further in this sieve tray, and a sludge pipe correspondence is through the third through-hole on this sieve tray multiple, and this sludge pipe is positioned at Air Exposure district, to extract mud.
Underground water as above extracts aeration treatment system, and wherein, this aeration tube correspondence connects a gas dispenser device, with can delivering gas in Air Exposure district, allow gas can carry out Air Exposure in the underground water of jet flow from lower to upper.
Underground water as above extracts aeration treatment system, and wherein, this sludge pipe one end links the loose slot that accepts mud.
Underground water as above extracts aeration treatment system, and wherein, the position, top in this body Air Exposure district is provided with a venting hole, and this venting hole is used for getting rid of volatile organic gas.
Underground water as above extracts aeration treatment system, and wherein, this obstruct dish is provided with check rubber cushion at its periphery further, can reach the closely sealed barrier with inboard wall of tube body.
Underground water as above extracts aeration treatment system, and wherein, this venting hole place is provided with a Negative pressure machine.
The utility model is mainly provided with one and may correspond to the body of inserting the deep layer end, ground, this tube surfaces is distributed with multiple open-work, in body, appropriate position is provided with obstruct dish again, body is divided into Air Exposure district and underground water extracts district, multiple sieve tray is provided with again in Air Exposure district, on each sieve tray, correspondence wears drinking-water pipe, sludge pipe and aeration tube, and this drinking-water pipe stretches into penetrate obstruct dish and enter underground water and extracts district to extract deep phreatic water, again underground water is carried, and be sprayed on body Air Exposure district via a spray gun; Thus, the deep phreatic water containing volatile organic contaminant is allowed to be sprayed on Air Exposure district, carry out Air Exposure through aeration tube input gas simultaneously, and Yu Jingzhong installs sieve tray, underground water and air is made to increase contact area, and then remove pollution substance soluble in water, reflux in shallow layer stratum via the water after process, to reach the engineering that soil and underground water are educated again.
Underground water as above extracts aeration treatment system, wherein this drinking-water pipe correspondence connects a power motor, and deep phreatic water can be extracted, and this power motor links a spray gun by the road, this spray gun is arranged at the position, top in body Air Exposure district, to allow deep phreatic water atomized spray in body Air Exposure district, and the underground water after process is refluxed in shallow layer stratum via the open-work of body.
Underground water as above extracts aeration treatment system, wherein this sludge pipe is extract for correspondence the mud flowed in bottom Air Exposure district, main need coordinate Air Exposure to drive extract mud, and link one in this sludge pipe one end and accept the loose slot of mud, with can splendid attire mud.
Underground water as above extracts aeration treatment system, and wherein this aeration tube is that correspondence connects a gas dispenser device, with can delivering gas in Air Exposure district, allow gas can carry out Air Exposure in the underground water of jet flow from lower to upper.
Underground water as above extracts aeration treatment system, and wherein the position, top in this body Air Exposure district is provided with a venting hole, and this venting hole is used for getting rid of volatile organic gas; In addition, can be provided with a Negative pressure machine further in venting hole place, continuing to bleed forms soil gas convection current in stratum and can promote volatility organic dirt treatment effect, reaches and strengthens polluting the effect removed.
Form with implementation known by above-mentioned element, in comparison, the utility model has following advantage for the utility model and existing structure:
1, underground water of the present utility model extracts aeration treatment system, carries out underground water extract process by drinking-water pipe, accelerates effect of the Groundwater Flow around treatment zone.
2, underground water of the present utility model extracts aeration treatment system, with above-mentioned, utilizes Air Exposure that volatile organic matter soluble in water is carried out aeration, and increase sieve tray and jet flow are arranged, and then promotes Air Exposure usefulness.
3, underground water of the present utility model extracts aeration treatment system, is arranged by sludge pipe scrubbing, performs mud and extract when sludgd deposition, can accelerate the Groundwater Flow around treatment zone and reduce the frequency of follow-up system Operation and Maintenance.
4, underground water of the present utility model extracts aeration treatment system, the deep phreatic water containing volatile organic contaminant is allowed to be sprayed on Air Exposure district via spray gun, carry out Air Exposure through aeration tube input gas simultaneously, and Yu Jingzhong installs sieve tray, underground water and air is made to increase contact area and then remove pollution substance soluble in water, reflux in shallow layer stratum via the water after process, to reach the engineering that soil and underground water are educated again.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is the cross-sectional schematic of the utility model overall architecture;
Fig. 2 is sieve tray schematic top plan view of the present utility model;
Fig. 3 is using state schematic diagram of the present utility model.
Drawing reference numeral illustrates:
The utility model:
1 body
11 open-works
12 venting holes
2 obstruct dishes
21 perforation
22 check rubber cushions
3 sieve trays
31 holes
32 first through holes
33 second through holes
34 third through-holes
4 drinking-water pipes
5 power motors
51 pipelines
52 spray guns
6 aeration tubes
7 sludge pipes
71 loose slots
A Air Exposure district
B underground water extracts district
Embodiment
The technology contents used for making the utility model, object and the effect reached thereof have more complete and clearly disclose, and hereby in lower detailed description, and see also taken off accompanying drawing and figure number:
First, refer to shown in Fig. 1 ~ Fig. 2, for underground water of the present utility model extracts cross-sectional schematic and the sieve tray schematic top plan view of aeration treatment system overall architecture, it consists predominantly of:
One body 1, for may correspond to the hollow tube of inserting the deep layer end, ground, this body 1 surface arrangement has multiple open-work 11;
One obstruct dish 2, for correspondence is arranged in body 1, body 1 internal space is divided into Air Exposure district A and underground water extracts district B, and this obstruct dish 2 is provided with a perforation 21;
Multiple sieve tray 3, for correspondence distributes the Air Exposure district A be arranged in body 1, distribute porose 31, and each this sieve tray 3 is provided with the first through hole 32, second through hole 33, third through-hole 34 on each sieve tray 3;
One drinking-water pipe 4, the corresponding perforation 21 through the first through hole 32 on multiple sieve tray 3 and obstruct dish 2, and allow drinking-water pipe 4 one end be positioned at underground water to extract district B, this drinking-water pipe 4 the other end correspondence connects the power motor 5 of a groundwater abstraction, and this power motor 5 51 link one spray guns 52 by the road, this spray gun 52 is arranged at the position, top of body Air Exposure district A;
One aeration tube 6, it is corresponding to the second through hole 33 on multiple sieve tray 3, and is positioned at Air Exposure district A, carries out Air Exposure with delivering gas;
One sludge pipe 7, it is corresponding to the third through-hole 34 on multiple sieve tray 3, and is positioned at Air Exposure district A, to extract mud.
Refer to shown in Fig. 1 ~ Fig. 3, when body 1 stretches into the end, ground, its deep phreatic water can flow into underground water and extracts in district B by the open-work 11 on tube wall, and utilize obstruct dish 2 be embedded in body 1 and groundwater flow can be intercepted to Air Exposure district A, and this obstruct dish 2 is provided with check rubber cushion 22 at its periphery further, so that the closely sealed barriering effect with inboard wall of tube body can be reached.
Then, drinking-water pipe 4 utilizes power motor 5 to extract to flow into underground water and extracts underground water in district B and up extract out, then delivers to spray gun 52 via pipeline 51, by this spray gun 52 by the underground water extracted out with atomized spray in body 1 Air Exposure district A.Simultaneously, aeration tube 6 correspondence connects a gas dispenser device, make it via gas dispenser device (graphic do not represent) delivering gas in Air Exposure district A, allow gas can carry out Air Exposure from lower to upper in the underground water of jet flow, make tool volatile organic contaminant (gas) in its underground water, increase volatilization effect through aeration, be provided with a venting hole 12 further simultaneously at the position, top of the Air Exposure district A of body 1, this venting hole 12 is used for getting rid of volatile organic gas; And a Negative pressure machine (graphic do not represent) also can be provided with in venting hole 12 place, continuing to bleed forms soil gas convection current in stratum and can promote volatility organic dirt treatment effect, reaches and strengthens polluting the effect removed.
And work as the process of underground jet water stream and aeration, the underground water of its jet flow can reflux in shallow layer stratum by the open-work of body 1, mud can fall to bottom Air Exposure district A simultaneously, when extracting mud, this power motor 5 can stop pumping and sprinkling action, aeration tube 6 is allowed to continue to carry out aeration, and utilize the gas of aeration action to drive, sludge pipe 7 mud of bottom can be extracted, and this sludge pipe 7 one end links the loose slot 71 that accepts mud, accepts to utilize loose slot 71 mud extracted.
Said structure and implementation process thus, allow the deep phreatic water containing volatile organic contaminant via being sprayed on Air Exposure district, carry out Air Exposure through aeration tube input gas simultaneously, and Yu Jingzhong installs sieve tray 3, underground water and air is made to increase contact area and then remove pollution substance soluble in water, reflux in stratum via the water after process, to reach the engineering that soil and underground water are educated again.
The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from principle of the present utility model and design and amendment, all should belong to protection domain of the present utility model.
Claims (7)
1. underground water extracts an aeration treatment system, it is characterized in that, described underground water extracts aeration treatment system and includes:
One body, it is corresponding hollow tube of inserting the deep layer end, ground, and this tube surfaces is distributed with multiple open-work;
One obstruct dish, its correspondence is arranged in body, and tubular body separated by spaces is that Air Exposure district and underground water extract district by this obstruct dish, and this obstruct dish is provided with a perforation;
Multiple sieve tray, its corresponding Air Exposure district be arranged in body that distributes, distribute on each this sieve tray porose, each this sieve tray is provided with the first through hole, the second through hole;
One drinking-water pipe, its corresponding perforation through the first through hole on multiple sieve tray and obstruct dish, this drinking-water pipe one end is positioned at underground water and extracts district, this drinking-water pipe the other end correspondence connects the power motor of a groundwater abstraction, this power motor links a spray gun by the road, and this spray gun is arranged at the position, top in body Air Exposure district;
One aeration tube, it is corresponding to the second through hole on multiple sieve tray, and this aeration tube is positioned at Air Exposure district.
2. underground water as claimed in claim 1 extracts aeration treatment system, it is characterized in that, is provided with a third through-hole further in this sieve tray, and a sludge pipe correspondence is through the third through-hole on this sieve tray multiple, and this sludge pipe is positioned at Air Exposure district.
3. underground water as claimed in claim 1 or 2 extracts aeration treatment system, and it is characterized in that, this aeration tube correspondence connects a gas dispenser device.
4. underground water as claimed in claim 2 extracts aeration treatment system, it is characterized in that, this sludge pipe one end links the loose slot that accepts mud.
5. underground water as claimed in claim 4 extracts aeration treatment system, and it is characterized in that, the position, top in this body Air Exposure district is provided with a venting hole.
6. underground water as claimed in claim 5 extracts aeration treatment system, and it is characterized in that, this obstruct dish is provided with check rubber cushion at its periphery further.
7. underground water as claimed in claim 5 extracts aeration treatment system, and it is characterized in that, this venting hole place is provided with a Negative pressure machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103211669U TWM490482U (en) | 2014-07-01 | 2014-07-01 | Pumping & air spring treatment |
| TW103211669 | 2014-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204643981U true CN204643981U (en) | 2015-09-16 |
Family
ID=54096747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520292669.2U Expired - Fee Related CN204643981U (en) | 2014-07-01 | 2015-05-08 | Underground water pumping aeration treatment system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204643981U (en) |
| TW (1) | TWM490482U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967358A (en) * | 2016-06-08 | 2016-09-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Waste liquid and gas collecting device of small underground water seepage physical model |
| RU2799647C1 (en) * | 2022-12-16 | 2023-07-07 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Groundwater aerator with submersible pump |
-
2014
- 2014-07-01 TW TW103211669U patent/TWM490482U/en unknown
-
2015
- 2015-05-08 CN CN201520292669.2U patent/CN204643981U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967358A (en) * | 2016-06-08 | 2016-09-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Waste liquid and gas collecting device of small underground water seepage physical model |
| RU2799647C1 (en) * | 2022-12-16 | 2023-07-07 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Groundwater aerator with submersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM490482U (en) | 2014-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20200508 |