CN107876519B - Wax removal instrument is supported to petroleum pipeline dimension - Google Patents
Wax removal instrument is supported to petroleum pipeline dimension Download PDFInfo
- Publication number
- CN107876519B CN107876519B CN201711270342.5A CN201711270342A CN107876519B CN 107876519 B CN107876519 B CN 107876519B CN 201711270342 A CN201711270342 A CN 201711270342A CN 107876519 B CN107876519 B CN 107876519B
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- China
- Prior art keywords
- main body
- body cylinder
- wall
- connecting sleeve
- injection channel
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- 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.)
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- 239000003208 petroleum Substances 0.000 title claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 63
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000012423 maintenance Methods 0.000 claims description 8
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims 1
- 239000001993 wax Substances 0.000 description 32
- 230000000694 effects Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- 239000012188 paraffin wax Substances 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
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
- B08B9/043—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
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
- B08B9/051—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a wax removal tool for maintaining a petroleum pipeline, which discloses a device for cleaning oil wax of a connecting threaded hole on the pipeline when maintaining the petroleum pipeline, and is characterized in that a connecting sleeve is arranged on one end of a hollow shaft motor, one end of a main body cylinder is arranged in the connecting sleeve and is connected with the inner wall of the connecting sleeve, a plurality of sealing rings are arranged between the outer wall of the main body cylinder and the inner wall of the connecting sleeve, an annular groove is arranged on the inner wall of the other end of the main body cylinder, the main body cylinder is made of copper, an air injection channel is arranged in the main body cylinder, the air injection channel is L-shaped, one end of the air injection channel is communicated with the connecting sleeve, a one-way valve is arranged in the air injection channel, a fixing ring is arranged on the outer wall of the other end of the main body cylinder, the fixing ring is made of copper, a heat transfer ring is arranged on the fixing, and the air injection hole on the inner side of the air bag is communicated with the other end of the air injection channel.
Description
Technical Field
The invention discloses a wax removal tool for maintaining a petroleum pipeline, relates to a device for cleaning oil wax of a connection threaded hole in a pipeline when the petroleum pipeline is maintained, and belongs to the field of energy equipment. In particular to a threaded hole paraffin removal device which removes oil wax in a threaded hole through cleaning teeth after the oil wax is heated and softened.
Background
At present, in the field of petroleum, petroleum resources are generally conveyed through pipelines, in order to guarantee the service life of the pipelines, the pipelines need to be maintained frequently, when maintenance operation is carried out, the pipelines need to be disassembled and replaced firstly, the petroleum resources often form oil wax in the pipelines in the conveying process, the oil wax permeates into connecting threaded holes, so that when screw threads of threaded holes are disassembled and connected, strength problems occur and connection is affected, and therefore wax removal needs to be carried out in the threaded holes, the traditional petroleum pipeline connecting threaded hole oil wax removal method adopts a scraper to carry out manual scraping in a manual mode, the manual cleaning mode is low in efficiency, the mechanical cleaning through the scraper has large damage to the pipeline connecting threads, and the problem of leakage is easy to occur in the pipeline using process, the existing pipeline cleaning device, for example, the publication No. CN105537214A discloses a device for cleaning the inner walls of variable diameter pipelines, the cleaning device comprises a motor, a central rotating shaft, a rotating wheel and a cleaning part, wherein the cleaning part comprises a connecting sliding rod and a cleaning head, the connecting sliding rod is installed in a matched mode with the rotating wheel, the cleaning head is installed at the top of the connecting sliding rod, a hard hairbrush is arranged on the cleaning head, the motor drives the central rotating shaft to rotate, the central rotating shaft transmits power to the rotating wheel, the cleaning part installed on the rotating shaft is driven to rotate by the rotating shaft, the moving track of the cleaning head of the cleaning part is a track similar to the diameter of the cross section of the inner wall of a cleaned reducing pipeline, dirt on the inner wall of the pipeline is cleaned by the hard hairbrush on the cleaning head while rotating, when the device is used for cleaning a connection threaded hole of a petroleum pipeline, the paraffin is scraped by the rotation of the hard hairbrush on the cleaning head, the adhesion between the paraffin and the threaded hole is strong, the damage to the thread is directly scraped, the friction coefficient of the hair, the repair is needed manually, and the using effect is poor.
Disclosure of Invention
In order to improve the situation, the invention provides a device for cleaning oil wax in a connecting threaded hole on a pipeline when the petroleum conveying pipeline is maintained, which can effectively improve the cleaning efficiency of the oil wax in the threaded hole and effectively reduce the damage to threads during cleaning.
The invention relates to a petroleum pipeline maintenance paraffin removal tool which is realized as follows: the invention relates to a petroleum pipeline maintenance paraffin removal tool which comprises a hollow shaft motor, a heating pipe, a sealing ring, a gas injection channel, cleaning teeth, a gas injection hole, a spiral heat conducting sheet, a heat transfer ring, a fixing ring, an air bag, a heat conducting plate, a main body cylinder and a connecting sleeve, wherein the connecting sleeve is sleeved at one end of the hollow shaft motor, one end of the main body cylinder is arranged in the connecting sleeve and is connected with the inner wall of the connecting sleeve, a plurality of sealing rings are arranged between the outer wall of the main body cylinder and the inner wall of the connecting sleeve, an annular groove is formed in the inner wall of the other end of the main body cylinder, the main body cylinder is made of copper, the gas injection channel is formed in the main body cylinder, the gas injection channel is L-shaped, one end of the gas injection channel is communicated with the connecting sleeve, a one-way valve is arranged in the gas injection channel, the gasbag is arranged in on the heat conduction ring, the gasbag is loop configuration, the gasbag inboard is equipped with the gas injection hole, and is linked together with the gas injection passageway other end, and the gasbag outside is arranged respectively in to a plurality of clearance teeth, the clearance tooth cross-section is right triangle, the clearance tooth is made by pottery, the clearance tooth overhead has the barb, and the heating pipe is arranged in a main part section of thick bamboo, and one end passes adapter sleeve and hollow shaft in proper order and arranges the quill shaft motor outside in, on a main part section of thick bamboo inner wall is arranged respectively in to a plurality of heat-conducting plates, heat-conducting plate one end and heating pipe contact, a plurality of heat-conducting plates are spiral distribution, and on the main part section of thick bamboo inner wall was arranged in to the spiral conducting strip, and lie in the ring channel on the main part section of thick bamboo inner.
When the oil wax cleaning device is used, when oil wax cleaning is carried out on a threaded hole on an oil conveying pipeline, firstly, the air bag is placed into the threaded hole, then, the air bag is inflated through the air injection channel, gas flows into the air injection channel through the air injection channel and then flows into the air bag, the air bag is inflated, cleaning teeth on the outer side of the air bag are in contact with the wall of the threaded hole, further, adjustment can be carried out according to the aperture of the threaded hole, threaded holes with different diameters are cleaned, the heating pipe is heated, then, the hollow shaft motor works, the hollow shaft drives the main body cylinder to rotate through the connecting sleeve, the main body cylinder drives the plurality of heat conduction plates and the spiral heat conduction plates to rotate, the heat conduction plates are driven to rotate by the fixing ring and the air bag, as the plurality of heat conduction plates are spirally distributed, hot air flow is blown out through the other end of the main, the heat on the heating pipe is transferred to the main body cylinder, the main body cylinder transfers the heat to the inside of the air bag through the heat transfer ring and finally to the cleaning teeth on the outer side of the air bag, so that the oil wax in the threaded hole is softened by blown hot air and the heat on the cleaning teeth, and then the oil wax is cleaned by the cleaning teeth on the outer side of the air bag in the rotating process;
the design that a plurality of sealing rings are arranged between the outer wall of the main body cylinder and the inner wall of the connecting sleeve can seal the inner wall of the connecting sleeve and the outer wall of the main body cylinder, prevent external cold gas from entering the main body cylinder, reduce the temperature in the main body cylinder and influence the heating and softening effect on the oil wax;
the main body cylinder is made of copper, so that the heat conducting performance of the main body cylinder is better, and heat can be conveniently transferred to the inside of the air bag;
the design that a check valve is arranged in the gas injection channel prevents the extruded internal gas from flowing out through the gas injection channel in the rotating process of the airbag, so that the volume of the airbag is not changed in the rotating process, and the cleaning effect is improved;
the heat transfer ring is made of beryllium bronze, so that the heat transfer performance on the heat transfer ring is good, the heat of the main body cylinder is conveniently transferred to the heat transfer ring, and the heat loss is reduced;
the cleaning teeth are provided with barbs, so that hard impurities can be scraped off when the cleaning teeth rotate to clean, and the cleaning effect in the threaded holes is improved;
the plurality of heat conducting plates are spirally distributed, so that hot air in the main body cylinder can be blown out in the rotating process, and oil wax in the threaded hole can be heated and softened;
the design that one end of the heat conducting plate is contacted with the heating pipe can transfer the heat on the heating pipe to the heat conducting plate, improve the heat conducting effect and reduce the heat loss in the heat conducting process;
the spiral heat conducting sheet is in contact with the heating pipe, so that heat on the heating pipe can be directly transferred to the spiral heat conducting sheet, the heat conducting effect is improved, and heat loss in the heat conducting process is reduced;
the heat conducting plate and the spiral heat conducting fins are respectively made of super heat conducting materials, so that the heat conducting performance of the heat conducting plate and the spiral heat conducting fins is better, heat conduction is better carried out, the heating and softening effect of oil wax in the threaded hole is improved, and subsequent cleaning is more convenient;
the cleaning teeth are matched with the heating pipe to clean the oil wax in the threaded hole, so that the softened oil wax is more convenient to clean, the power required by the cleaning teeth is smaller, the energy consumption is reduced, the damage to the thread is reduced, and the cleaning efficiency of the oil wax in the threaded hole can be effectively improved;
the air bag is matched with the cleaning teeth, so that threaded holes with different apertures can be cleaned, the application range is wide, and the using effect is better;
when the maintenance of the petroleum conveying pipeline is achieved, the purpose of cleaning oil wax of the connecting threaded hole in the petroleum conveying pipeline is achieved.
Has the beneficial effects.
The structure is simple, and the device is convenient and practical.
And secondly, the cleaning efficiency of the oil wax in the threaded hole can be effectively improved.
And thirdly, damage to the threads during cleaning can be effectively reduced.
Drawings
FIG. 1 is a schematic structural view of a petroleum pipeline maintenance paraffin removal tool according to the present invention.
In the attached drawings
Wherein the parts are: the device comprises a hollow shaft motor (1), a heating pipe (2), a sealing ring (3), a gas injection channel (4), cleaning teeth (5), a gas injection hole (6), spiral heat conducting fins (7), a heat conducting ring (8), a fixing ring (9), an air bag (10), a heat conducting plate (11), a main body cylinder (12) and a connecting sleeve (13).
The specific implementation mode is as follows:
the invention relates to a maintenance paraffin removal tool for a petroleum pipeline, which is realized by putting an air bag (10) into a threaded hole, then inflating the air bag (10) through an air injection channel (4) when cleaning the threaded hole on the petroleum pipeline, leading gas to flow into an air injection hole (6) through the air injection channel (4), then flowing into the air bag (10) to inflate the air bag (10), leading cleaning teeth (5) on the outer side of the air bag (10) to be contacted with the wall of the threaded hole, further adjusting according to the aperture of the threaded hole, cleaning threaded holes with different diameters, heating a heating pipe (2), then leading a hollow shaft motor (1) to work, leading a main body cylinder (12) to rotate through a connecting sleeve (13), leading a plurality of heat conduction plates (11) and spiral heat conduction plates (7) to rotate through the main body cylinder (12), and leading a heat conduction ring (8) and the air bag (10) to rotate through a fixing ring (9), the heat conducting plates (11) are spirally distributed, so that hot air is blown out through the other end of the main body cylinder (12) and blown into the threaded hole, the heat conducting plates (11) and the spiral heat conducting fins (7) are respectively contacted with the heating pipe (2), so that heat on the heating pipe (2) is transferred to the main body cylinder (12), the main body cylinder (12) transfers the heat to the inside of the air bag (10) through the heat transfer ring (8), and finally transferred to the cleaning teeth (5) on the outer side of the air bag (10), so that oil wax in the threaded hole is softened through blown hot air and the heat on the cleaning teeth (5), and then the air bag (10) cleans the oil wax through the cleaning teeth (5) on the outer side in the rotating process;
the design that a plurality of sealing rings (3) are arranged between the outer wall of the main body cylinder (12) and the inner wall of the connecting sleeve (13) can seal the space between the inner wall of the connecting sleeve (13) and the outer wall of the main body cylinder (12), prevent external cold gas from entering the main body cylinder (12), reduce the temperature in the main body cylinder (12) and influence the heating and softening effects on the oil wax;
the main body cylinder (12) is made of copper, so that the heat conducting performance of the main body cylinder (12) is better, and heat can be conveniently transferred to the inside of the air bag (10);
the gas injection channel (4) is internally provided with a one-way valve, so that the extruded internal gas is prevented from flowing out through the gas injection channel (4) in the rotating process of the gas bag (10), the volume of the gas bag (10) can be ensured to be unchanged in the rotating process, and the cleaning effect is improved;
the heat transfer ring (8) is made of beryllium bronze, so that the heat transfer performance on the heat transfer ring (8) is good, the heat of the main body cylinder (12) is conveniently transferred to the heat transfer ring (8), and the heat loss is reduced;
the cleaning teeth (5) are provided with barbs, so that hard impurities can be scraped off when the cleaning teeth (5) rotate to clean, and the cleaning effect in the threaded hole is improved;
the heat-conducting plates (11) are spirally distributed, so that hot air in the main body cylinder (12) can be blown out in the rotating process, and oil wax in the threaded hole can be heated and softened;
due to the design that one end of the heat conducting plate (11) is in contact with the heating pipe (2), the heat on the heating pipe (2) can be transferred to the heat conducting plate (11) in diameter, the heat conducting effect is improved, and heat loss in the heat conducting process is reduced;
the spiral heat conducting fins (7) are in contact with the heating pipe (2), so that heat on the heating pipe (2) can be directly transferred to the spiral heat conducting fins (7), the heat conducting effect is improved, and heat loss in the heat conducting process is reduced;
the heat conducting plate (11) and the spiral heat conducting fins (7) are respectively made of super heat conducting materials, so that the heat conducting performance of the heat conducting plate (11) and the spiral heat conducting fins (7) is better, heat conduction is better performed, the heating and softening effect of oil wax in threaded holes is improved, and subsequent cleaning is more convenient;
the cleaning teeth (5) are matched with the heating pipe (2) to clean the oil wax in the threaded hole, the softened oil wax is more convenient to clean, the power required by the cleaning teeth (5) is smaller, on one hand, the energy consumption is reduced, on the other hand, the damage to the thread is also reduced, and the cleaning efficiency of the oil wax in the threaded hole can be effectively improved;
the air bag (10) is matched with the cleaning teeth (5), so that threaded holes with different apertures can be cleaned, the application range is wide, and the using effect is better;
when the maintenance of the petroleum conveying pipeline is achieved, the purpose of cleaning oil wax of the connecting threaded hole in the petroleum conveying pipeline is achieved.
Claims (9)
1. A wax removal instrument is supported to petroleum pipeline maintenance, characterized by: the connecting sleeve is sleeved on one end of a hollow shaft of the hollow shaft motor, one end of a main body cylinder is arranged in the connecting sleeve and is connected with the inner wall of the connecting sleeve, the inner wall of the other end of the main body cylinder is provided with an annular groove, the main body cylinder is made of copper, a gas injection channel is arranged in the main body cylinder, the gas injection channel is L-shaped, one end of the gas injection channel is communicated with the connecting sleeve, a one-way valve is arranged in the gas injection channel, a fixing ring is arranged on the outer wall of the other end of the main body cylinder, the fixing ring is made of copper, a heat transfer ring is arranged on the fixing ring, an air bag is arranged on the heat transfer ring, the air bag is of an annular structure, gas injection holes are formed in the inner side of the air bag and are communicated with the other end of the gas injection channel, a plurality of cleaning teeth are respectively arranged, the spiral heat conducting fin is arranged on the inner wall of the main body cylinder and is positioned in the annular groove on the inner wall of the main body cylinder, and the spiral heat conducting fin is contacted with the heating pipe.
2. The tool of claim 1, wherein a plurality of sealing rings are disposed between the outer wall of the main body cylinder and the inner wall of the connecting sleeve.
3. The tool of claim 1, wherein the heat transfer ring is made of beryllium bronze.
4. The tool of claim 1, wherein the cleaning teeth are right triangular in cross-section.
5. The tool of claim 4, wherein the cleaning teeth are made of ceramic.
6. The tool of claim 5, wherein the cleaning teeth are provided with barbs.
7. The tool of claim 1, wherein the plurality of thermal plates are spirally disposed.
8. The tool of claim 1, wherein the heat conducting plate and the spiral heat conducting plate are made of super heat conducting material.
9. The tool for maintaining and removing wax from a petroleum pipeline as claimed in claim 1, wherein the air bag is engaged with the cleaning teeth to clean threaded holes with different diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270342.5A CN107876519B (en) | 2017-12-05 | 2017-12-05 | Wax removal instrument is supported to petroleum pipeline dimension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270342.5A CN107876519B (en) | 2017-12-05 | 2017-12-05 | Wax removal instrument is supported to petroleum pipeline dimension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107876519A CN107876519A (en) | 2018-04-06 |
| CN107876519B true CN107876519B (en) | 2020-12-04 |
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ID=61772825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711270342.5A Active CN107876519B (en) | 2017-12-05 | 2017-12-05 | Wax removal instrument is supported to petroleum pipeline dimension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107876519B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022821B (en) * | 2019-11-19 | 2021-06-08 | 杭州越歌科技有限公司 | Robot for repairing inner wall of pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588380A (en) * | 2015-01-22 | 2015-05-06 | 山东鼎诺节能环保服务有限公司 | Airbag type columnar stab pipe cleaner capable of dissolving water pressure and automatically rotating |
| CN205096192U (en) * | 2015-11-12 | 2016-03-23 | 仲继东 | Oil field gas transmission pipeline pull throughs |
| KR101711634B1 (en) * | 2016-09-05 | 2017-03-02 | 중앙컨설턴트 주식회사 | Apparatus for Cleaning the inner of Deep Well capable of Expand a Brush |
| CN206104479U (en) * | 2016-10-09 | 2017-04-19 | 泸州市添苒信息科技有限公司 | System based on control petroleum pipeline wall dredging pipe ware heater strip |
| CN106808352A (en) * | 2016-12-30 | 2017-06-09 | 重庆腾通工业设计有限公司 | Inner-walls of duct eliminates rust and spray-painting plant |
| DE102016109842A1 (en) * | 2016-05-27 | 2017-11-30 | Ibak Helmut Hunger Gmbh & Co Kg | Rehabilitation unit for sewer rehabilitation with shut-off bubble |
-
2017
- 2017-12-05 CN CN201711270342.5A patent/CN107876519B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588380A (en) * | 2015-01-22 | 2015-05-06 | 山东鼎诺节能环保服务有限公司 | Airbag type columnar stab pipe cleaner capable of dissolving water pressure and automatically rotating |
| CN205096192U (en) * | 2015-11-12 | 2016-03-23 | 仲继东 | Oil field gas transmission pipeline pull throughs |
| DE102016109842A1 (en) * | 2016-05-27 | 2017-11-30 | Ibak Helmut Hunger Gmbh & Co Kg | Rehabilitation unit for sewer rehabilitation with shut-off bubble |
| KR101711634B1 (en) * | 2016-09-05 | 2017-03-02 | 중앙컨설턴트 주식회사 | Apparatus for Cleaning the inner of Deep Well capable of Expand a Brush |
| CN206104479U (en) * | 2016-10-09 | 2017-04-19 | 泸州市添苒信息科技有限公司 | System based on control petroleum pipeline wall dredging pipe ware heater strip |
| CN106808352A (en) * | 2016-12-30 | 2017-06-09 | 重庆腾通工业设计有限公司 | Inner-walls of duct eliminates rust and spray-painting plant |
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| Publication number | Publication date |
|---|---|
| CN107876519A (en) | 2018-04-06 |
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Effective date of registration: 20201118 Address after: 221000 LOFTC Building of Hanyuan Avenue West Green Business City, Yunlong District, Xuzhou City, Jiangsu Province Applicant after: XUZHOU XINNANHU TECHNOLOGY Co.,Ltd. Address before: 221008 Jiangsu province Quanshan District of Xuzhou science and technology building two layer 215-4 Applicant before: Dong Haifeng |
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Effective date of registration: 20240318 Address after: Room 101, Unit 4, Building 4, Government Office Community, Wuqi County, Yan'an City, Shaanxi Province, 717600 Patentee after: Wuqi County Xinshun Petroleum Machinery Co.,Ltd. Country or region after: China Address before: Building loftc, West Greenland Business City, Hanyuan Avenue, Yunlong District, Xuzhou City, Jiangsu Province, 221000 Patentee before: XUZHOU XINNANHU TECHNOLOGY Co.,Ltd. Country or region before: China |
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