CN107530743A - 管内涡轮喷砂系统 - Google Patents
管内涡轮喷砂系统 Download PDFInfo
- Publication number
- CN107530743A CN107530743A CN201680019438.1A CN201680019438A CN107530743A CN 107530743 A CN107530743 A CN 107530743A CN 201680019438 A CN201680019438 A CN 201680019438A CN 107530743 A CN107530743 A CN 107530743A
- Authority
- CN
- China
- Prior art keywords
- turbine
- pipeline
- under water
- fluid
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005488 sandblasting Methods 0.000 title claims abstract description 98
- 239000012530 fluid Substances 0.000 claims abstract description 241
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 234
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 239000007787 solid Substances 0.000 claims abstract description 53
- 238000000227 grinding Methods 0.000 claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 65
- 230000002093 peripheral effect Effects 0.000 claims description 52
- 239000000203 mixture Substances 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000001802 infusion Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 11
- 239000002244 precipitate Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 62
- 239000007789 gas Substances 0.000 description 45
- 239000002223 garnet Substances 0.000 description 37
- 229910052742 iron Inorganic materials 0.000 description 31
- 229910000831 Steel Inorganic materials 0.000 description 22
- 239000010959 steel Substances 0.000 description 22
- 150000001875 compounds Chemical class 0.000 description 20
- 239000002245 particle Substances 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010981 drying operation Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000967 As alloy Inorganic materials 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004577 thatch Substances 0.000 description 2
- 238000009785 tube rolling Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 241000219991 Lythraceae Species 0.000 description 1
- 241001503485 Mammuthus Species 0.000 description 1
- 235000014360 Punica granatum Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000001997 corrosion-resisting alloy Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/0535—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning device being restricted in its movement by a cable or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/035—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0553—Cylindrically shaped pigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
- B08B9/0558—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles with additional jet means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/032—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces by the mechanical action of a moving fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B2209/055—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Cleaning In General (AREA)
- Hydraulic Turbines (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-020088 | 2015-02-04 | ||
JP2015020088A JP6511621B2 (ja) | 2015-02-04 | 2015-02-04 | 管内タービンブラストシステム |
PCT/JP2016/052358 WO2016125659A1 (ja) | 2015-02-04 | 2016-01-27 | 管内タービンブラストシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107530743A true CN107530743A (zh) | 2018-01-02 |
CN107530743B CN107530743B (zh) | 2020-12-15 |
Family
ID=56564008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680019438.1A Active CN107530743B (zh) | 2015-02-04 | 2016-01-27 | 管内涡轮喷砂系统 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10512952B2 (zh) |
EP (1) | EP3266528A4 (zh) |
JP (1) | JP6511621B2 (zh) |
CN (1) | CN107530743B (zh) |
WO (1) | WO2016125659A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109092814A (zh) * | 2018-11-05 | 2018-12-28 | 中国工程物理研究院机械制造工艺研究所 | 一种水-电混合动力高压射流管道清洗装置 |
CN110293102A (zh) * | 2019-07-23 | 2019-10-01 | 泸州职业技术学院 | 一种泡沫排液清管器 |
CN110340082A (zh) * | 2019-07-16 | 2019-10-18 | 湖南达道新能源开发有限公司 | 一种用于地热管道的除垢装置及除垢方法 |
CN114012608A (zh) * | 2021-11-02 | 2022-02-08 | 东南大学 | 一种铜质物体表面锈蚀的无损清洗方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11446710B2 (en) * | 2018-12-14 | 2022-09-20 | The Boeing Company | Wash and dry tool for enclosed channels and method for use |
CN112474640B (zh) * | 2020-11-13 | 2023-10-20 | 长缆电工科技股份有限公司 | 一种用于管道内壁检测清洁的装置及管道清洁方法 |
CN112502219A (zh) * | 2020-11-21 | 2021-03-16 | 中铁一局集团有限公司 | 一种水压式电缆管洞清理装置 |
CN113182292B (zh) * | 2021-05-29 | 2022-11-01 | 江苏恒源建设有限公司 | 一种市政软管内壁清理装置 |
CN113399389A (zh) * | 2021-06-28 | 2021-09-17 | 烟台杰瑞石油装备技术有限公司 | 连续油管防腐方法、吹扫装置和作业设备 |
CN114293954B (zh) * | 2021-12-06 | 2023-10-13 | 中国矿业大学 | 一种煤层气管清洗设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5875803A (en) * | 1997-04-17 | 1999-03-02 | Shell Oil Company | Jetting pig |
US20040194809A1 (en) * | 2003-04-07 | 2004-10-07 | Crawford James R | Pipeline remediation method with wire rope pig |
CN202185437U (zh) * | 2011-07-25 | 2012-04-11 | 中国石油集团渤海石油装备制造有限公司 | 一种钢管内壁自旋式吹扫装置 |
CN103316873A (zh) * | 2013-07-11 | 2013-09-25 | 淮安市淮安区南闸农机修配厂 | 旋转式管道清洗器 |
JP2014018702A (ja) * | 2012-07-12 | 2014-02-03 | Urakami Kk | 管内を移動し且つ作業を行う装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4170902A (en) * | 1978-05-18 | 1979-10-16 | British Gas Corporation | Pipeline inspection vehicles |
US4369713A (en) * | 1980-10-20 | 1983-01-25 | Transcanada Pipelines Ltd. | Pipeline crawler |
JP2644365B2 (ja) * | 1990-07-05 | 1997-08-25 | 東京電力株式会社 | 管内面補修塗装用ロボット |
JPH0666776A (ja) | 1992-08-14 | 1994-03-11 | Tokyo Gas Co Ltd | 管内検査ピグ |
JP2003225626A (ja) | 2002-02-04 | 2003-08-12 | Toshiba Corp | 配管内作業方法および装置 |
-
2015
- 2015-02-04 JP JP2015020088A patent/JP6511621B2/ja active Active
-
2016
- 2016-01-27 CN CN201680019438.1A patent/CN107530743B/zh active Active
- 2016-01-27 WO PCT/JP2016/052358 patent/WO2016125659A1/ja unknown
- 2016-01-27 US US15/570,667 patent/US10512952B2/en not_active Expired - Fee Related
- 2016-01-27 EP EP16746490.8A patent/EP3266528A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5875803A (en) * | 1997-04-17 | 1999-03-02 | Shell Oil Company | Jetting pig |
US20040194809A1 (en) * | 2003-04-07 | 2004-10-07 | Crawford James R | Pipeline remediation method with wire rope pig |
CN202185437U (zh) * | 2011-07-25 | 2012-04-11 | 中国石油集团渤海石油装备制造有限公司 | 一种钢管内壁自旋式吹扫装置 |
JP2014018702A (ja) * | 2012-07-12 | 2014-02-03 | Urakami Kk | 管内を移動し且つ作業を行う装置 |
CN103316873A (zh) * | 2013-07-11 | 2013-09-25 | 淮安市淮安区南闸农机修配厂 | 旋转式管道清洗器 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109092814A (zh) * | 2018-11-05 | 2018-12-28 | 中国工程物理研究院机械制造工艺研究所 | 一种水-电混合动力高压射流管道清洗装置 |
CN110340082A (zh) * | 2019-07-16 | 2019-10-18 | 湖南达道新能源开发有限公司 | 一种用于地热管道的除垢装置及除垢方法 |
CN110293102A (zh) * | 2019-07-23 | 2019-10-01 | 泸州职业技术学院 | 一种泡沫排液清管器 |
CN114012608A (zh) * | 2021-11-02 | 2022-02-08 | 东南大学 | 一种铜质物体表面锈蚀的无损清洗方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3266528A4 (en) | 2019-01-09 |
CN107530743B (zh) | 2020-12-15 |
JP2016140844A (ja) | 2016-08-08 |
US20190126329A1 (en) | 2019-05-02 |
WO2016125659A1 (ja) | 2016-08-11 |
US10512952B2 (en) | 2019-12-24 |
JP6511621B2 (ja) | 2019-05-15 |
EP3266528A1 (en) | 2018-01-10 |
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SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180102 Assignee: Yancheng Pushang Yanwu Intelligent Equipment Co.,Ltd. Assignor: URAKAMI LLC|THE FIRST SERVICE CO.,LTD. Contract record no.: X2022990000516 Denomination of invention: In-line turbine blasting system Granted publication date: 20201215 License type: Exclusive License Record date: 20220817 |
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Assignee: Yancheng Pushang Yanwu Intelligent Equipment Co.,Ltd. Assignor: URAKAMI LLC|THE FIRST SERVICE CO.,LTD. Contract record no.: X2022990000516 Date of cancellation: 20230529 |
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Effective date of registration: 20230629 Address after: Room 208-88, 2nd Floor, No. 2311 Changjiang West Road, Baoshan District, Shanghai Patentee after: Pushang Intelligent Equipment (Shanghai) Co.,Ltd. Address before: Kanagawa Patentee before: URAKAMI LLC Patentee before: THE FIRST SERVICE CO.,LTD. |
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Application publication date: 20180102 Assignee: Yancheng Pushang Yanwu Intelligent Equipment Co.,Ltd. Assignor: Pushang Intelligent Equipment (Shanghai) Co.,Ltd. Contract record no.: X2023990000712 Denomination of invention: In-pipe turbine sandblasting system Granted publication date: 20201215 License type: Exclusive License Record date: 20230714 |
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