CN104791202A - Steel and concrete combined structure wind power tower - Google Patents
Steel and concrete combined structure wind power tower Download PDFInfo
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- CN104791202A CN104791202A CN201510183194.8A CN201510183194A CN104791202A CN 104791202 A CN104791202 A CN 104791202A CN 201510183194 A CN201510183194 A CN 201510183194A CN 104791202 A CN104791202 A CN 104791202A
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a steel and concrete combined structure wind power tower which comprises a foundation, a bottom section tower drum, a middle section tower drum and a top section tower drum. The foundation is a reinforced concrete foundation, and a steel foundation ring is pre-buried in the foundation. Each section tower drum is formed in the mode that an inner steel drum, an outer steel drum and a limiting tensioning element which are concentric form a steel die, and concrete is poured between the inner steel drum and the outer steel drum. The limiting tension elements are fixedly welded to the outer sides of the inner steel drums and the inner sides of the outer steel drums and are formed by welding steel plates. The horizontal section of each limiting tensioning element is in a T shape or an inverted L shape. The limiting tensioning elements are longitudinally disposed and distributed annularly and alternately. The wind power tower is reasonable in structure, the weight and the section of the wind power tower are much smaller than those of a reinforced concrete tower, and rigidity and stability of the wind power tower are much larger than those of a steel structure tower. Transport and assembly are facilitated, and manufacturing cost and use and maintenance cost are low.
Description
Technical field
The invention belongs to wind power plant, particularly a kind of steel-concrete combined structure wind power tower.
Background technique
Wind-power generating unit tower is the important component part in wind-power generating system.In recent years, country greatly develops wind-powered electricity generation industry, current main flow wind power tower all adopts steelwork tower truss, but along with blower fan single-machine capacity expand gradually, rotor diameter increase, requirements at the higher level are proposed to the height of tower cylinder and rigidity, wall thickness, the diameter of required steelwork tower truss and highly all greatly increase.Along with 3.0 MW and larger unit come into the market, need 100 m and higher larger pylon as support.Research shows, 85 m and above steel structure tower cylinder be not because possessing enough rigidity, and the natural frequency of vibration is overlapping with fan blade excited frequency, will cause resonance.In order to improve the rigidity of steel tower tube, can only increase the wall thickness of steel tower tube, causing cost greatly to increase, difficulty of processing increases.For the unit of 5 MW, the high steelwork tower truss wall thickness of 100m is more than 50 mm, and circle system and the difficulty of processing of steel plate are very big.Therefore, the present invention proposes a kind of steel-concrete combined structure wind power tower.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of rational in infrastructure, and be convenient to transport and assembling, rigidity is large, and stability is high, reliable, manufacture cost and the low steel-concrete combined structure wind power tower of working service cost.
The basic scheme that the present invention solves the problems of the technologies described above employing is: a kind of steel-concrete combined structure wind power tower, it comprises basis and end section tower cylinder, intermediate section tower cylinder and top section tower cylinder, described basis is reinforced concrete foundation, wherein pre-buried steel foundation ring, it is characterized in that: described every section of tower cylinder forms steel die by steel cylinder, outer steel cylinder and spacing tension member in concentric, in the middle of interior steel cylinder and outer steel cylinder, concreting manufacture forms; Inside the outside that described spacing tension member is fixedly welded on interior steel cylinder in advance and outer steel cylinder.
Further, described interior steel cylinder and outer steel cylinder are cone barrel type, stack with one heart between rear interior steel cylinder, outer steel cylinder and form gap, and the width in gap is up-narrow and down-wide.
The present invention arranges in the inner side of the outside of interior steel cylinder and outer steel cylinder the spacing tension member adapted with gap, position, place.Described spacing tension member is formed by Plate Welding, the T-shaped or Γ type of horizontal section, is welded in outside interior steel cylinder and the spacing tension member of T-shaped or Γ type inside outer steel cylinder is longitudinally arranged, and is circumferentially alternately distributed.Spacing tension member plays position-limiting action on the one hand, controls the spacing between inside and outside steel cylinder, ensures that inside and outside steel cylinder is concentric; Between inside and outside steel cylinder and concrete, drawknot effect is played on the other hand after concreting.
Further, described spacing tension member is arranged along short transverse staged and layered, to be welded in outside interior steel cylinder and inside outer steel cylinder.
Further, the described spacing tension member section of T-shaped or Γ type also can be made into or other shapes.
Further, described concrete is self-compacting slightly expanded concrete.
Further, the lower end of described end section tower cylinder is provided with the steel flanges be connected with foundation ring, and steel flanges is welded with end section tower cylinder, is connected between steel flanges with foundation ring with high-strength bolt.
Further, section tower cylinder upper end, described top is provided with the steel flanges of fixing wind power generating set, and steel flanges is welded to connect with top section tower cylinder.
During tower cylinder prefabricate of the present invention, every section of upper and lower two ends of tower cylinder are closed with steel plate, reserved concreting hole.When every section of tower cylinder distinguish is prefabricated, every lobe two ends, left and right longitudinally are also closed with steel plate.Longitudinal seam between lobe with lobe, the horizontal joint between section with section weld all at the scene, form tower cylinder.
Described tower cylinder according to design needs, only can retain outside steel cylinder, forms the composite structure of individual layer steel cylinder and reinforced concrete.Inside concrete joins Constructional Steel Bar.Inside steel cylinder, still longitudinally layering arranges spacing tension member, makes to form effective drawknot between steel cylinder and reinforced concrete.During prefabricate, longitudinal structure reinforcing bar welds with the doughnut-shaped steel plate of end, upper and lower two ends.When every section of distinguish is prefabricated, hoop Constructional Steel Bar again with the Plate Welding of end, two ends, every lobe left and right.
Steel-concrete combined structure wind power tower of the present invention is at factory's prefabricate, and every section of tower cylinder is divided into integral prefabricated or distinguish is prefabricated, is transported to erecting bed and assembles.Against existing technologies, the present invention is rational in infrastructure, and weight and section are much smaller than reinforced concrete pylon, and rigidity and stability are much larger than steelwork tower truss.Be convenient to transport and assembling, manufacture cost and working service cost lower, improve pylon working life.It is a kind of desirable wind power tower structure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is that the present invention forms structure longitudinal profile schematic diagram.
Fig. 2 is tower cylinder section I partial enlarged drawing of the present invention.
Fig. 3 is the structural representation of interior steel cylinder in the present invention.
Fig. 4 is the structural representation of the present invention China and foreign countries steel cylinder.
Fig. 5 is steel cylinder and outer steel cylinder combination schematic diagram in the present invention.
Fig. 6 is the present invention's integral prefabricated tower cylinder schematic cross-section.
Fig. 7 is that prefabricated adjacent two lobes of distinguish of the present invention connect partial schematic diagram.
Label in figure is: 1. basis, 2. foundation ring, 3. end section tower cylinder, and 4. intermediate section tower cylinder 5. pushes up section tower cylinder, 6. spacing tension member, 7. spacing tension member, 8. self-compacting slightly expanded concrete, 9. weld seam, steel cylinder 10., 11. outer steel cylinders, 12. fixing steel plates.
Embodiment
As can be seen from Figure 1, a kind of steel-concrete combined structure wind power tower, it comprises basis 1 and end section tower cylinder 3, intermediate section tower cylinder 4 and top section tower cylinder 5, described basic 1 are reinforced concrete foundation, pre-embedded foundation ring 2 wherein.Foundation ring 2 can be steel, and the end inside and outside steel plate of section tower cylinder is all welded thereon face, and foundation ring is imbedded in lower concrete basis.
Described every section of tower cylinder forms steel die by steel cylinder 10, outer steel cylinder 11 and spacing tension member 6,7 in concentric and additional steel plate 12, and interior steel cylinder 10 and the middle concreting manufacture of outer steel cylinder 11 form.
Further, described interior steel cylinder 10 and outer steel cylinder 11 are cone barrel type, stack with one heart between rear interior steel cylinder, outer steel cylinder and form gap, and the width in gap is up-narrow and down-wide.
Further, described concrete is self-compacting slightly expanded concrete.
Further, the lower end of described end section tower cylinder is provided with the steel flanges be connected with foundation ring, and steel flanges is welded with end section tower cylinder, is connected between steel flanges with foundation ring with high-strength bolt.
Further, section tower cylinder upper end, described top is provided with the steel flanges of fixing wind power generating set, and steel flanges is welded to connect with top section tower cylinder.
The present invention arranges in the inner side of the outside of interior steel cylinder and outer steel cylinder the spacing tension member adapted with gap, position, place.Described spacing tension member is formed by Plate Welding, the T-shaped or Γ type of horizontal section, is welded in outside interior steel cylinder and the spacing tension member of T-shaped or Γ type inside outer steel cylinder is longitudinally arranged, and is circumferentially alternately distributed.Spacing tension member plays position-limiting action on the one hand, controls the spacing between inside and outside steel cylinder, ensures that inside and outside steel cylinder is concentric; Between inside and outside steel cylinder and concrete, drawknot effect is played on the other hand after concreting.Described spacing tension member is arranged along short transverse staged and layered, to be welded in outside interior steel cylinder and inside outer steel cylinder.The described spacing tension member section of T-shaped or Γ type also can be made into or other shapes.
Can find out in Fig. 2, interior steel cylinder 10, outer steel cylinder 11 are combined with self-compacting slightly expanded concrete 8 fully respectively by spacing tension member 6 and 7, are formed overall.
As shown in Fig. 3,4,5, when every section of tower cylinder is integral prefabricated, form steel mold by interior steel cylinder 10, outer steel cylinder 11, self-compacting slightly expanded concrete is built in inside.Spacing tension member 6 is welded to connect with outer steel cylinder 11, and spacing tension member 7 is welded to connect with interior steel cylinder 10, and spacing tension member 6 and 7 is interspersed in longitudinal direction and hoop.
Can be clearly seen that tower cylinder is made up of inner steel cylinder 10, outside steel cylinder 11, self-compacting slightly expanded concrete 8, spacing tension member 6 and 7 by Fig. 6.When assembling, spacing tension member 6 and 7 can ensure that interior steel cylinder 10 is concentric with outer steel cylinder 11.
Inside the outside that described spacing tension member 6,7 is fixedly welded on interior steel cylinder in advance and outer steel cylinder.After-pouring self-compacting slightly expanded concrete 8 manufacture form.Tower cylinder is divided into some sections of tower cylinders in the height direction, comprises end section tower cylinder 3, intermediate section tower cylinder 4 and top section tower cylinder 5.Intermediate section tower cylinder 4 can be one section, also can be multistage.Some sections of tower cylinders are assembled from bottom to top successively, and tower cylinder diameter and wall thickness reduce from the bottom up gradually, and the whole pylon of composition is cone cylindrical structure.Inside the outer steel cylinder of each section of tower cylinder and and interior steel cylinder outside be welded with the spacing tension member 6 and 7 of T-shaped respectively, during assembling, the spacing tension member 6 and 7 of inside and outside T-shaped is interspersed, and ensures that inside and outside steel cylinder is concentric.The thickness of inside and outside steel cylinder and the quantity of spacing tension member can according to tower cylinder actual load situation flexible arrangement.First carry out splicing location by structure glue between described tower cylinder upper-lower section, then the welding carrying out inside and outside steel plate forms weld seam 9, lower end and the foundation ring 2 of tower cylinder are welded to connect.
Bigbore tower cylinder section of the present invention can distinguish prefabricated, every lobe is referred to as tower cylinder lobe.When tower cylinder lobe is prefabricated, is added steel plate 12 formed steel die by interior steel cylinder 10, outer steel cylinder 11.As shown in Figure 7, time assembled, between adjacent towers cylinder lobe, inside and outside steel plate welds respectively, and adds between steel plate 12 in adjacent petals and pour into self-compacting microdilatancy pea gravel concreten.
Pylon main body concrete self-compacting slightly expanded concrete of the present invention.Self-compacting slightly expanded concrete with silicate cement for cementitious matter, with natural sand or Machine-made Sand for fine aggregate, be coarse aggregate with stone, add the admixture such as dilatant, high efficiency water reducing agent, ensure the self-compacting of concrete in work progress, and the microdilatancy after building.Ensure to combine closely between concrete and steel plate.
Tower cylinder section is prefabricated or distinguish is prefabricated at entire plant, and tower cylinder section integral prefabricated employing vertical forming technique is built, the horizontal pre-formed technique of the prefabricated employing of distinguish.On-site consolidation.During assembling, end section tower cylinder 3 is fastened on foundation ring 2 by welding or bolt.Then intermediate section tower cylinder 4 lifted successively and be placed on end section tower cylinder 2, carrying out splicing location by structure glue, be fixed on end section tower cylinder 2, then inside and outside steel plate welded respectively.Top section tower cylinder 5 is connected on intermediate section tower cylinder 4 according to said method.
During tower cylinder prefabricate of the present invention, every section of upper and lower two ends of tower cylinder are closed with steel plate, reserved concreting hole.When every section of tower cylinder distinguish is prefabricated, every lobe two ends, left and right longitudinally are also closed with steel plate.Longitudinal seam between lobe with lobe, the horizontal joint between section with section weld all at the scene, form tower cylinder.
Described tower cylinder according to design needs, only can retain outside steel cylinder, forms the composite structure of individual layer steel cylinder and reinforced concrete.Inside concrete joins Constructional Steel Bar.Inside steel cylinder, still longitudinally layering arranges spacing tension member, makes to form effective drawknot between steel cylinder and reinforced concrete.During prefabricate, longitudinal structure reinforcing bar welds with the doughnut-shaped steel plate of end, upper and lower two ends.When every section of distinguish is prefabricated, hoop Constructional Steel Bar again with the Plate Welding of end, two ends, every lobe left and right.
Steel-concrete combined structure wind power tower of the present invention is at factory's prefabricate, and every section of tower cylinder is divided into integral prefabricated or distinguish is prefabricated, is transported to erecting bed and assembles.Against existing technologies, the present invention is rational in infrastructure, and weight and section are much smaller than reinforced concrete pylon, and rigidity and stability are much larger than steelwork tower truss.Be convenient to transport and assembling, manufacture cost and working service cost lower, improve pylon working life.It is a kind of desirable wind power tower structure.
Claims (7)
1. a steel-concrete combined structure wind power tower, it comprises basis and end section tower cylinder, intermediate section tower cylinder and top section tower cylinder, described basis is reinforced concrete foundation, wherein pre-buried steel foundation ring, it is characterized in that: described every section of tower cylinder forms steel die by steel cylinder, outer steel cylinder and spacing tension member in concentric, in the middle of interior steel cylinder and outer steel cylinder, concreting manufacture forms; Inside the outside that described spacing tension member is fixedly welded on interior steel cylinder in advance and outer steel cylinder.
2. steel-concrete combined structure wind power tower according to claim 1, is characterized in that: described interior steel cylinder and outer steel cylinder are cone barrel type, stacks with one heart between rear interior steel cylinder, outer steel cylinder and forms gap, and the width in gap is up-narrow and down-wide.
3. steel-concrete combined structure wind power tower according to claim 1, it is characterized in that: described spacing tension member is formed by Plate Welding, T-shaped or the Γ type of horizontal section, to be welded in outside interior steel cylinder and the spacing tension member of T-shaped or Γ type inside outer steel cylinder is longitudinally arranged, and to be circumferentially alternately distributed.
4. steel-concrete combined structure wind power tower according to claim 3, is characterized in that: described spacing tension member is arranged along short transverse staged and layered, to be welded in outside interior steel cylinder and inside outer steel cylinder.
5. steel-concrete combined structure wind power tower according to claim 1, is characterized in that: described concrete is self-compacting slightly expanded concrete.
6. steel-concrete combined structure wind power tower according to claim 1, it is characterized in that: the lower end of described end section tower cylinder is provided with the steel flanges be connected with foundation ring, steel flanges is welded with end section tower cylinder, is connected between steel flanges with foundation ring with high-strength bolt.
7. steel-concrete combined structure wind power tower according to claim 1, is characterized in that: section tower cylinder upper end, described top is provided with the steel flanges of fixing wind power generating set, and steel flanges is welded to connect with top section tower cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183194.8A CN104791202A (en) | 2015-04-17 | 2015-04-17 | Steel and concrete combined structure wind power tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183194.8A CN104791202A (en) | 2015-04-17 | 2015-04-17 | Steel and concrete combined structure wind power tower |
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| CN104791202A true CN104791202A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510183194.8A Pending CN104791202A (en) | 2015-04-17 | 2015-04-17 | Steel and concrete combined structure wind power tower |
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| CN (1) | CN104791202A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351801A (en) * | 2016-08-25 | 2017-01-25 | 三重型能源装备有限公司 | Tower tube pouring construction method and tower tube |
| CN106438213A (en) * | 2016-10-08 | 2017-02-22 | 霍尔果斯新国金新能源科技有限公司 | Tower drum used for wind driven generator |
| CN106592622A (en) * | 2016-12-19 | 2017-04-26 | 长安大学 | Annular concrete based wind-driven generator foundation structure with vertical prestress |
| CN106640541A (en) * | 2016-10-08 | 2017-05-10 | 霍尔果斯新国金新能源科技有限公司 | Tower tube used for wind driven generator |
| CN108214824A (en) * | 2017-12-29 | 2018-06-29 | 北京天杉高科风电科技有限责任公司 | Tower method for manufacturing component, tower component and the method for building tower |
| CN108643682A (en) * | 2018-07-25 | 2018-10-12 | 广东正华钢构有限公司 | Steel structural upright column fixation precast base |
| CN109322793A (en) * | 2018-12-03 | 2019-02-12 | 重庆大学 | A kind of full assembled concrete-filled double skin steel tube combination tower and node |
| CN110439758A (en) * | 2019-08-14 | 2019-11-12 | 北京中建建筑科学研究院有限公司 | A kind of node transition tower segments, wind power tower and its construction method of wind-powered electricity generation steel-concrete combination pylon |
| CN111022268A (en) * | 2019-12-30 | 2020-04-17 | 福州大学 | Permeable liftable wind power tower and working method thereof |
| CN111535350A (en) * | 2020-04-30 | 2020-08-14 | 天津大学 | Method for prefabricating gas film offshore wind power foundation structure |
| CN112376603A (en) * | 2020-11-05 | 2021-02-19 | 上海电气风电集团股份有限公司 | Assembly type fan foundation and assembly method thereof |
| CN113404643A (en) * | 2021-06-15 | 2021-09-17 | 中铁上海设计院集团有限公司 | Wind power hybrid tower prefabricated tower cylinder connected by section steel ring beams and construction method thereof |
| CN114382657A (en) * | 2022-01-21 | 2022-04-22 | 江苏金风科技有限公司 | Combined tower, tower foundation and wind generating set |
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| CN102733641A (en) * | 2012-07-04 | 2012-10-17 | 广东明阳风电产业集团有限公司 | Tower drum foundation ring of wind driven generator |
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| CN104314775A (en) * | 2014-07-28 | 2015-01-28 | 徐州中煤百甲重钢科技有限公司 | Special tower for wind driven generator |
| DE102013016604A1 (en) * | 2013-10-07 | 2015-04-09 | EcoEnterprises GmbH | Steel tube tower of a wind turbine, as well as methods for manufacturing and assembling the tower components |
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Patent Citations (4)
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| CN102733641A (en) * | 2012-07-04 | 2012-10-17 | 广东明阳风电产业集团有限公司 | Tower drum foundation ring of wind driven generator |
| CN203430129U (en) * | 2013-07-09 | 2014-02-12 | 中材建设有限公司 | Steel shell concrete tower barrel |
| DE102013016604A1 (en) * | 2013-10-07 | 2015-04-09 | EcoEnterprises GmbH | Steel tube tower of a wind turbine, as well as methods for manufacturing and assembling the tower components |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351801A (en) * | 2016-08-25 | 2017-01-25 | 三重型能源装备有限公司 | Tower tube pouring construction method and tower tube |
| CN106438213B (en) * | 2016-10-08 | 2022-03-22 | 上海风领新能源有限公司 | Tower drum for wind driven generator |
| CN106438213A (en) * | 2016-10-08 | 2017-02-22 | 霍尔果斯新国金新能源科技有限公司 | Tower drum used for wind driven generator |
| CN106640541A (en) * | 2016-10-08 | 2017-05-10 | 霍尔果斯新国金新能源科技有限公司 | Tower tube used for wind driven generator |
| CN106592622A (en) * | 2016-12-19 | 2017-04-26 | 长安大学 | Annular concrete based wind-driven generator foundation structure with vertical prestress |
| CN108214824A (en) * | 2017-12-29 | 2018-06-29 | 北京天杉高科风电科技有限责任公司 | Tower method for manufacturing component, tower component and the method for building tower |
| CN108643682A (en) * | 2018-07-25 | 2018-10-12 | 广东正华钢构有限公司 | Steel structural upright column fixation precast base |
| CN108643682B (en) * | 2018-07-25 | 2023-08-29 | 正华钢构(广东)股份有限公司 | Prefabricated base for fixing steel structure upright post |
| CN109322793A (en) * | 2018-12-03 | 2019-02-12 | 重庆大学 | A kind of full assembled concrete-filled double skin steel tube combination tower and node |
| CN110439758A (en) * | 2019-08-14 | 2019-11-12 | 北京中建建筑科学研究院有限公司 | A kind of node transition tower segments, wind power tower and its construction method of wind-powered electricity generation steel-concrete combination pylon |
| CN111022268A (en) * | 2019-12-30 | 2020-04-17 | 福州大学 | Permeable liftable wind power tower and working method thereof |
| CN111535350A (en) * | 2020-04-30 | 2020-08-14 | 天津大学 | Method for prefabricating gas film offshore wind power foundation structure |
| CN112376603A (en) * | 2020-11-05 | 2021-02-19 | 上海电气风电集团股份有限公司 | Assembly type fan foundation and assembly method thereof |
| CN113404643A (en) * | 2021-06-15 | 2021-09-17 | 中铁上海设计院集团有限公司 | Wind power hybrid tower prefabricated tower cylinder connected by section steel ring beams and construction method thereof |
| CN114382657A (en) * | 2022-01-21 | 2022-04-22 | 江苏金风科技有限公司 | Combined tower, tower foundation and wind generating set |
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Application publication date: 20150722 |
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| RJ01 | Rejection of invention patent application after publication |