CN205606066U - A complete anticorrosive butt -welding connection structure for serving as a contrast mould compound steel pipes - Google Patents
A complete anticorrosive butt -welding connection structure for serving as a contrast mould compound steel pipes Download PDFInfo
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- CN205606066U CN205606066U CN201620434245.XU CN201620434245U CN205606066U CN 205606066 U CN205606066 U CN 205606066U CN 201620434245 U CN201620434245 U CN 201620434245U CN 205606066 U CN205606066 U CN 205606066U
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Abstract
The utility model discloses a complete anticorrosive butt -welding connection structure for serving as a contrast mould compound steel pipes belongs to the lining and moulds compound steel pipes manufacturing and designing technical field. The utility model provides a be applicable to the complete anticorrosive butt -welding connection structure of carrying high temperature, high pressure, strong corrosive medium. Complete anticorrosive butt -welding connection structure mould compound steel pipes, coupling mechanism, stopping and contain the steel oversleeve pipe that holds the chamber including the lining, the link of moulding compound steel pipes at the lining has one section inside lining plastic tubing linkage segment that has stripped the steel parent tube, the end of inside lining plastic tubing linkage segment has a thick arch of mound of extending and move towards the radial outside along circumference, compound steel pipes was moulded to two section adjacent linings inside lining plastic tubing linkage segment passes through the thick protruding sealing connection of mound, and compound steel pipes was moulded to two section adjacent linings steel parent tube passes through steel oversleeve pipe to be connected with coupling mechanism and be a whole, and the stopping is packed in holding the chamber by steel sleeve sheathed tube and serve as a contrast the packing chamber that the lateral surface of moulding compound steel pipes constitutes.
Description
Technical field
This utility model relates to a kind of full anticorrosion butt welding attachment structure, especially relates to a kind of full anticorrosion for plastic lining composite steel pipe
Butt welding attachment structure, belongs to plastic lining composite steel pipe design and manufacturing technology field.
Background technology
In prior art, connect to make line plastic-steel tube realize butt welding, one section of stainless steel tube need to be installed additional at the port of line plastic-steel tube,
Or install one section of Double layer metal composite pipe making lining with rustless steel additional.Utilize this rustless steel pipeline section or Double layer metal composite pipe section,
On the one hand guarantee plastic lining composite steel pipe is when butt welding connects, and the lining plastic bed of material of its port is not soldered the high temperature produced and is destroyed；
On the other hand the carbon steel base tube making lining plastic compound steel pipe port does not contacts with the medium of conveying in line plastic-steel tube, prevents lining from moulding compound
The carbon steel base tube of port of steel pipe is corroded.But, when carrying high temperature, high pressure, strong corrosive medium in plastic lining composite steel pipe, its
Rustless steel pipeline section or Double layer metal composite pipe section that port installs additional there is also the probability being corroded.So, find and design one
Kind can meet carry high temperature, high pressure, the plastic lining composite steel pipe full anti-corrosion connecting structure form of strong corrosive medium needs just become length
The key technical problem that defeated lining plastic compound steel pipeline must take into and solves in installing.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of being applicable to carry high temperature, high pressure, the use of strong corrosive medium
Full anticorrosion butt welding attachment structure in plastic lining composite steel pipe.
Be the technical scheme is that a kind of full anticorrosion butt welding for plastic lining composite steel pipe connects knot by solving above-mentioned technical problem
Structure, including plastic lining composite steel pipe, described full anticorrosion butt welding attachment structure also includes bindiny mechanism, inserts and contains receiving chamber
Steel oversleeve pipe, described plastic lining composite steel pipe connect end there is one section of inner lining plastic tube linkage section having divested steel base tube,
The end of described inner lining plastic tube linkage section have one circumferentially and be radially oriented outside upset projection；Adjacent two sections of institutes
The inner lining plastic tube linkage section stating plastic lining composite steel pipe is connected by described upset raised seals, and adjacent two sections of described linings are moulded compound
The steel base tube of steel pipe is connected as an entirety by described steel oversleeve pipe and described bindiny mechanism, and described inserts is filled
In the filling chamber being made up of the lateral surface in the described receiving chamber of steel oversleeve pipe Yu described plastic lining composite steel pipe.
Further, the end of the described inner lining plastic tube linkage section of adjacent two pieces plastic lining composite steel pipe is by described upset convex
Play bonding connection or connected by described upset protruding thermofussion welding.
Further, described bindiny mechanism includes that being circumferentially disposed at plastic lining composite steel pipe connects outside the steel base tube of end
Groove and the limited location snap ring that is arranged in this installation groove are installed, in two ends each setting respectively in the described receiving chamber of steel oversleeve pipe
There is a compression conical surface；The described steel base tube of adjacent two sections of plastic lining composite steel pipes is by described steel oversleeve pipe, in described peace
It is connected as an entirety under the cooperation of dress groove, the limited location snap ring being arranged in this installation groove and the described compression conical surface.
Such scheme it is preferable that, described limited location snap ring is the split ring of circular in cross-section.
Further, described steel oversleeve pipe includes the steel main sleeve pipe of sleeve and steel sleeve secondary case pipe, in the described steel main sleeve pipe of sleeve and institute
Corresponding respectively on the steel sleeve secondary case pipe stated it is provided with the described compression conical surface, compresses corresponding position respectively by the described compression conical surface
The described steel main sleeve pipe of sleeve after the limited location snap ring at the place of putting is connected as an entirety with described steel sleeve secondary case pipe by Welding Structure.
Such scheme it is preferable that, at multiple connection ends of a feed-line being assembled by described plastic lining composite steel pipe
In face, at least include a longitudinal center line relative to center conveyor line in the inclination connecting end surface not surpassing 45 ° of angles.
Further, described inserts is the solidification parcel thermal barrier that the hand-hole by being arranged on described receiving chamber injects.
Further, described bindiny mechanism is to be arranged on plastic lining composite steel pipe to connect the company outside the described steel base tube of end
Connect external screw thread and be arranged on the connection female thread of described steel oversleeve tube end, the described steel base tube of adjacent two sections of plastic lining composite steel pipes
It is connected as an entirety by described connection external screw thread and described connection female thread by described steel oversleeve pipe.
The beneficial effects of the utility model are: a set of include bindiny mechanism, inserts and the full anticorrosion of steel oversleeve pipe by arranging
Butt welding attachment structure, and receiving chamber is set on described steel oversleeve pipe.So, it is used for carrying high temperature, high pressure, strong in installation
During the plastic lining composite steel pipe long-distance transport pipes of corrosive medium, just first connection end at described plastic lining composite steel pipe can divest steel base tube
After expose one section of inner lining plastic tube linkage section, and go out a upset projection, the most again at the end pier of this inner lining plastic tube linkage section
Process described steel oversleeve pipe and bindiny mechanism respectively, make the inner lining plastic tube of adjacent two sections of described plastic lining composite steel pipes the most again
Linkage section is connected by described upset raised seals, makes the steel base tube of adjacent two sections of described plastic lining composite steel pipes by described
Steel oversleeve pipe and described bindiny mechanism are connected as an entirety, are being moulded with described lining by the described receiving chamber of steel oversleeve pipe the most again
The filling chamber that the lateral wall of composite steel tube is constituted is injected inserts solidification, a joint complete of described long-distance transport pipes can be completed
Anticorrosion butt welding attachment structure.Owing to using the above-mentioned full anticorrosion butt welding attachment structure of the application, make long-distance transport pipes preventing in joint
Rotten layer remain as can the plastics composite bed of deep-etching high temperature resistant, anti-, thus ensure that long-distance transport pipes are in conveying high temperature, deep-etching
Medium will not destroy because of the severe corrosive of transported medium；And adopt in full anticorrosion welding connection structure described herein
Inject with steel oversleeve pipe and in the filling chamber being made up of the lateral wall in the described receiving chamber of steel oversleeve pipe Yu described plastic lining composite steel pipe
Inserts also solidifies, and both can ensure that the tensile strength along conveying direction at jointing, can guarantee that again edge at described jointing
Anti-high voltage intensity radially, thus reach to ensure the conveying intensity of joint during feed-line conveying high-pressure medium.
Accompanying drawing explanation
Fig. 1 is this utility model for the full anticorrosion butt welding attachment structure of plastic lining composite steel pipe and the structural representation of construction method thereof
Figure.
Figure is labeled as: plastic lining composite steel pipe 1, bindiny mechanism 2, inserts 3, receiving chamber 4, steel oversleeve pipe 5, steel base
Pipe 6, inner lining plastic tube linkage section 7, upset protruding 8, install groove 9, limited location snap ring 10, compress the conical surface 11, main set tucked inside the sleeve by steel
Pipe 12, steel sleeve secondary case pipe 13, connecting end surface 14, hand-hole 15.
Detailed description of the invention
Be that this utility model provides as shown in Figure 1 a kind of be applicable to carry high temperature, high pressure, strong corrosive medium mould multiple for lining
Close the full anticorrosion butt welding attachment structure of steel pipe, and a kind of construction method for manufacturing above-mentioned full anticorrosion butt welding attachment structure.Institute
The full anticorrosion butt welding attachment structure stated includes that plastic lining composite steel pipe 1, described full anticorrosion butt welding attachment structure also include bindiny mechanism
2, inserts 3 and the steel oversleeve pipe 5 containing receiving chamber 4, the connection end at described plastic lining composite steel pipe 1 has one section and divests
The inner lining plastic tube linkage section 7 of steel base tube 6, the end of described inner lining plastic tube linkage section 7 has one the most also
It is radially oriented upset protruding the 8 of outside；The inner lining plastic tube linkage section 7 of adjacent two sections of described plastic lining composite steel pipes 1 is by described
Upset protruding 8 be tightly connected, the steel base tube 6 of adjacent two sections of described plastic lining composite steel pipes 1 is by described steel oversleeve pipe 5
Being connected as an entirety with described bindiny mechanism 2, described inserts 3 is filled in by the described receiving chamber 4 of steel oversleeve pipe 5
In the filling chamber constituted with the lateral surface of described plastic lining composite steel pipe 1.
By arranging a set of full anticorrosion butt welding attachment structure including bindiny mechanism 2, inserts 3 and steel oversleeve pipe 5, and
Receiving chamber 4 is set on described steel oversleeve pipe 5.So, installing for carrying high temperature, high pressure, the lining of strong corrosive medium are moulded
During composite steel tube 1 long-distance transport pipes, just first connection end at described plastic lining composite steel pipe 1 can expose one after divesting steel base tube 6
Section inner lining plastic tube linkage section 7, and go out one upset protruding 8 at the end pier of this inner lining plastic tube linkage section 7, distinguish the most again
Steel oversleeve pipe 5 described in processing and bindiny mechanism 2, make the plastic lining of adjacent two sections of described plastic lining composite steel pipes 1 the most again
Pipe linkage section 7 is tightly connected by described upset protruding 8, makes the steel base tube 6 of adjacent two sections of described plastic lining composite steel pipes 1
It is connected as an entirety, the most again by described in steel oversleeve pipe 5 by described steel oversleeve pipe 5 and described bindiny mechanism 2
Accommodate chamber 4 and inject inserts solidification in the filling chamber of the lateral wall composition of described plastic lining composite steel pipe 1, described length can be completed
The full anticorrosion butt welding attachment structure of one joint of defeated pipeline.Owing to using the above-mentioned full anticorrosion butt welding attachment structure of the application, make
The long-distance transport pipes anticorrosive coat in joint remain as can the plastics composite bed of deep-etching high temperature resistant, anti-, thus ensure that long defeated pipe
Line will not destroy because of the severe corrosive of transported medium at conveying high temperature, strong corrosive medium；And described herein entirely
Anticorrosion welding connection structure uses steel oversleeve pipe 5 and by the described receiving chamber 4 of steel oversleeve pipe 5 and described plastic lining composite steel pipe
The filling chamber that the lateral wall of 1 is constituted injected inserts and solidifies, both having can ensure that at jointing that the tension along conveying direction is strong
Degree, can guarantee that again anti-high voltage intensity radially at described jointing, thus when reaching to ensure feed-line conveying high-pressure medium
The conveying intensity of joint.
In above-mentioned embodiment, according to the practical situation of production scene, the described plastic lining of adjacent two pieces plastic lining composite steel pipe 1
The end of pipe linkage section 7 can be to be tightly connected by the way of using bonding connection by described upset protruding 8, it is also possible to by institute
Upset protruding 8 stated use the mode of thermofussion welding to be tightly connected.Under normal circumstances, the side of thermofussion welding is typically used at plant site
Formula is tightly connected, and so can improve intensity and the effect of connection；And erecting bed in the wild typically uses viscous a sequence of mode
It is tightly connected, although so intensity and effect slightly reduce than thermofussion welding connected mode, but more convenient operation.
Meanwhile, the connection of the steel base tube 6 of lining plastic compound steel 1 the most described herein, in order to simplify described connection machine
The structure of structure, facilitates fabrication and installation, and the making of especially convenient erecting bed in the wild and installation, the application is by described company
Connection mechanism 2 is set to the installation groove 9 including being circumferentially disposed at outside the steel base tube 6 of described plastic lining composite steel pipe 1 end
With the structure of the limited location snap ring 10 being arranged in this installation groove 9, and divide at the two ends in the described receiving chamber 4 of steel oversleeve pipe 5
Not being each provided with a compression conical surface 11, so, the described steel base tube 6 of adjacent two sections of plastic lining composite steel pipes 1 can pass through institute
The steel oversleeve pipe 5 stated, installs groove 9, the limited location snap ring 10 being arranged in this installation groove 9 and described compression described
Being connected of the conical surface 11 is an entirety.Now, the structure of described limited location snap ring 10 is preferably the opening of circular in cross-section
Ring.Meanwhile, according to the needs connected, the structure of herein described steel oversleeve pipe 5 preferably comprises the steel main sleeve pipe 12 of sleeve and steel sleeve
The structure of secondary case pipe 13, and it is each provided with an institute respectively on described steel tucks inside the sleeve main sleeve pipe 12 and described steel sleeve secondary case pipe 13
The compression conical surface 11 stated, the most just can make to compress the described steel after described limited location snap ring 10 respectively by the described compression conical surface 11
Main sleeve pipe 12 of tucking inside the sleeve is connected as an entirety with described steel sleeve secondary case pipe 13 by Welding Structure.Certainly, the main sleeve of steel lining described herein
Can also be threaded connection between sleeve pipe 12 and described steel sleeve secondary case pipe 13 is an entirety.
It addition, bindiny mechanism 2 described herein can also connect the described steel base of end for being arranged on plastic lining composite steel pipe 1
Connecting external screw thread and being arranged on the connection female thread of described steel oversleeve pipe 5 end, so, adjacent two sections of described linings outside pipe 6
The steel base tube 6 of plastic composite steel pipe 1 is connected external screw thread and described connection female thread by described steel oversleeve pipe 5 by described
It is connected as an entirety.Now, described steel oversleeve pipe 5 can be tucked inside the sleeve by steel main sleeve pipe 12 and steel sleeve secondary case pipe 13 constitute
Structure, it is also possible to be an overall structure.When adopting an overall structure, due to weldering when can effectively avoid joint to connect
Inner lining plastic tube linkage section 7 inside the heat damages connect.The most now described inner lining plastic tube linkage section 7 pier go out upset
The external diameter of protruding 8 should be not more than the external diameter of steel base tube 6.
In above-mentioned embodiment, the heat in order to avoid producing when steel oversleeve pipe 5 welds burns out the inner lining plastic tube linkage section of inner side
7, therefore on described steel oversleeve pipe 5, it is provided with receiving chamber 4, if be not so filled with after completing to connect, then can cause
Junction bearing capacity radially can reduce, to this end, the application just can inject inserts in described filling chamber.Filling out now
Charge can be filled in before steel oversleeve pipe 5 welds, it is also possible to filling in after welding completes, the mode preferably selected is after welding completes
Fill in, and inject solidification parcel thermal barrier preferably by the hand-hole 15 being arranged on described receiving chamber 4.
In conjunction with above-mentioned full anticorrosion butt welding attachment structure, the application further provides a kind of for above-mentioned full anticorrosion butt welding connection
The construction method of structure, described construction method comprises the following steps, and first passes through plant equipment and uses cold working mode removal to need
Steel base tube 6 outside plastic lining composite steel pipe 1 to be connected exposes inner lining plastic tube linkage section 7, uses thermal processing method afterwards
Pier goes out upset protruding the 8 of described inner lining plastic tube linkage section 7 end；Processing steel oversleeve pipe 5 and connection machine the most respectively
Structure 2, then overlaps described steel oversleeve pipe 5 in advance and receives on the described plastic lining composite steel pipe 1 needing to connect；Then heat is used
Adjacent two described upset protruding 8 are realized being tightly connected by melting welding or bonding way；The most again by the described steel main sleeve pipe of sleeve
12 and the secondary lining pipe 13 of described steel sleeve be pushed into link position compress described in bindiny mechanism 2 after spot welding point firm；Then pass through
Described hand-hole 15 injects parcel thermal barrier in described filling chamber, is welded by point after described parcel thermal barrier solidification again
Solid described steel main sleeve pipe 12 and described steel sleeve secondary case pipe 13 of tucking inside the sleeve be welded as a whole, complete and the most described entirely prevent
The construction method of rotten butt welding attachment structure.
Further, on-the-spot in order to make construction described herein can be not only suitable for workshop, field can be met again and install existing
Installation operation, the application is to use thermal processing method to go out at described inner lining plastic tube linkage section 7 end pier described upset convex
When playing 8, first it is inserted into the loose tool with boss at described inner lining plastic tube linkage section 7, then reheats described plastic lining
The end of pipe linkage section 7, and heat the loose tool described in inwardly driving until pier goes out the upset convex of required thickness and length
Rise 8 be to.And be usually found according to erecting bed, field to install after the pipeline that fixes interrupts pipe and again mend peace one joint
The situation of pipeline section, now, on pipeline axis direction, the plastic lining composite steel pipe 1 at two ends all cannot move, in this case,
In order to make the connecting end surface 14 of the plastic lining composite steel pipe 1 at pipeline two ends can realize bonding or hot melt seam, can will be moulded by described lining
A connecting end surface in multiple connecting end surfaces of the feed-line that composite steel tube 1 is assembled processes in center conveyor line
Angle does not surpass the inclination connecting end surface of 45 °.So, the in-site installation operation of anticorrosion long-distance transport pipes can just be realized very easily.
Its essence of connecting end surface 14 described herein is exactly that adjacent two inner lining plastic tubes in full anticorrosion butt welding attachment structure connect
The end face for connection of the section of connecing 7 end, owing to the steel base tube 6 outside plastic lining composite steel pipe 1 has divested one section, described
The connecting end surface of the steel base tube 6 of adjacent two plastic lining composite steel pipes 1 is apart from each other, and it connects really is by steel oversleeve pipe
Realize, therefore connecting end surface can not be, and be to be realized by bonding or hot melt between adjacent two inner lining plastic tube linkage sections 7
Directly in conjunction with, therefore the application is referred to as connecting end surface 14.
Claims (8)
1., for a full anticorrosion butt welding attachment structure for plastic lining composite steel pipe, including plastic lining composite steel pipe (1), its feature exists
In: described full anticorrosion butt welding attachment structure also includes bindiny mechanism (2), inserts (3) and the steel containing receiving chamber (4)
Oversleeve pipe (5), the connection end at described plastic lining composite steel pipe (1) has one section of plastic lining having divested steel base tube (6)
Pipe linkage section (7), the end of described inner lining plastic tube linkage section (7) have one circumferentially and be radially oriented outside pier
Thick protruding (8)；The inner lining plastic tube linkage section (7) of adjacent two sections of described plastic lining composite steel pipes (1) is by described upset convex
Playing (8) to be tightly connected, the steel base tube (6) of adjacent two sections of described plastic lining composite steel pipes (1) is by described steel oversleeve pipe (5)
Being connected as an entirety with described bindiny mechanism (2), it is described that described inserts (3) is filled in by steel oversleeve pipe (5)
Accommodate in the filling chamber of lateral surface composition of chamber (4) and described plastic lining composite steel pipe (1).
Full anticorrosion butt welding attachment structure for plastic lining composite steel pipe the most according to claim 1, it is characterised in that: phase
The end of the described inner lining plastic tube linkage section (7) of adjacent two pieces plastic lining composite steel pipe (1) is glued by described upset projection (8)
Connect in succession or connected by described upset projection (8) thermofussion welding.
Full anticorrosion butt welding attachment structure for plastic lining composite steel pipe the most according to claim 1, it is characterised in that: institute
The bindiny mechanism (2) stated includes the peace being circumferentially disposed at steel base tube (6) outside that plastic lining composite steel pipe (1) connects end
Dress groove (9) and the limited location snap ring (10) being arranged in this installation groove (9), in the described receiving chamber of steel oversleeve pipe (5)
(4) two ends are each provided with a compression conical surface (11) respectively；The described steel base tube of adjacent two sections of plastic lining composite steel pipes (1)
(6) by described steel oversleeve pipe (5) at described installation groove (9), the limiting card that is arranged in this installation groove (9)
An entirety it is connected as under the cooperation of ring (10) and the described compression conical surface (11).
Full anticorrosion butt welding attachment structure for plastic lining composite steel pipe the most according to claim 3, it is characterised in that: institute
The limited location snap ring (10) stated is the split ring of circular in cross-section.
Full anticorrosion butt welding attachment structure for plastic lining composite steel pipe the most according to claim 3, it is characterised in that: institute
Steel oversleeve pipe (5) stated includes the steel main sleeve pipe of sleeve (12) and steel sleeve secondary case pipe (13), at the described steel main sleeve pipe of sleeve (12)
Corresponding respectively with on described steel sleeve secondary case pipe (13) it is provided with the described compression conical surface (11), by the described compression conical surface
(11) the main sleeve pipe of the sleeve of the described steel after the limited location snap ring (10) of corresponding position (12) and described steel sleeve secondary case pipe are compressed respectively
(13) it is connected as an entirety by Welding Structure.
6. according to the full anticorrosion butt welding attachment structure for plastic lining composite steel pipe described in claim 1,2,3,4 or 5, its
It is characterised by: in multiple connecting end surfaces (14) of a feed-line being assembled by described plastic lining composite steel pipe (1),
At least include a longitudinal center line relative to center conveyor line in the inclination connecting end surface not surpassing 45 ° of angles.
Full anticorrosion butt welding attachment structure for plastic lining composite steel pipe the most according to claim 6, it is characterised in that: institute
The inserts (3) stated is the solidification parcel thermal barrier injected by the hand-hole (15) being arranged on described receiving chamber (4).
Full anticorrosion butt welding attachment structure for plastic lining composite steel pipe the most according to claim 1, it is characterised in that: institute
The bindiny mechanism (2) stated is to be arranged on outside the connection in described steel base tube (6) outside that plastic lining composite steel pipe (1) connects end
Screw thread and the connection female thread being arranged on described steel oversleeve pipe (5) end, the described steel of adjacent two sections of plastic lining composite steel pipes (1)
Matter base tube (6) is connected as one by described steel oversleeve pipe (5) by described connection external screw thread and described connection female thread
Overall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620434245.XU CN205606066U (en) | 2016-05-12 | 2016-05-12 | A complete anticorrosive butt -welding connection structure for serving as a contrast mould compound steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620434245.XU CN205606066U (en) | 2016-05-12 | 2016-05-12 | A complete anticorrosive butt -welding connection structure for serving as a contrast mould compound steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205606066U true CN205606066U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620434245.XU Active CN205606066U (en) | 2016-05-12 | 2016-05-12 | A complete anticorrosive butt -welding connection structure for serving as a contrast mould compound steel pipes |
Country Status (1)
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| CN (1) | CN205606066U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805468A (en) * | 2016-05-12 | 2016-07-27 | 成都贝根管道有限责任公司 | Full-anticorrosion butt welding connection structure for liner plastic compound steel pipe and construction method of full-anticorrosion butt welding structure |
| CN112780868A (en) * | 2020-12-31 | 2021-05-11 | 宝鸡天联汇通复合材料有限公司 | Non-metal connecting joint for composite pipe and connecting method |
-
2016
- 2016-05-12 CN CN201620434245.XU patent/CN205606066U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805468A (en) * | 2016-05-12 | 2016-07-27 | 成都贝根管道有限责任公司 | Full-anticorrosion butt welding connection structure for liner plastic compound steel pipe and construction method of full-anticorrosion butt welding structure |
| CN105805468B (en) * | 2016-05-12 | 2018-04-17 | 成都贝根管道科技有限公司 | Full anti-corrosion butt welding connection structure and its construction method for plastic lining composite steel pipe |
| CN112780868A (en) * | 2020-12-31 | 2021-05-11 | 宝鸡天联汇通复合材料有限公司 | Non-metal connecting joint for composite pipe and connecting method |
| CN112780868B (en) * | 2020-12-31 | 2023-09-29 | 宝鸡天联汇通复合材料有限公司 | Connection method of nonmetallic connection joint for composite pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170704 Address after: Jinyuan Industrial Avenue, Dayi County town of 611330 in Sichuan province Chengdu City 2 No. 1 Patentee after: CHENGDU BEIGEN PIPELINE TECHNOLOGY CO.,LTD. Address before: Jinyuan Industrial Avenue, Dayi County town of 611330 Sichuan city of Chengdu Province, two Patentee before: CHENGDU BEGIN PIPELINE CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611330 No. 1, Section 2, Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee after: Chengdu Common Steel and Plastic Products Co.,Ltd. Address before: 611330 No. 1, Section 2, Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee before: CHENGDU BEIGEN PIPELINE TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230629 Address after: No. 139, Xiangyang Road, Qingbaijiang District, Chengdu, Sichuan 610300 Patentee after: Chengdu joint pipe manufacturing Co.,Ltd. Address before: 611330 No. 1, Section 2, Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee before: Chengdu Common Steel and Plastic Products Co.,Ltd. |