CN106439249A - Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same - Google Patents
Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same Download PDFInfo
- Publication number
- CN106439249A CN106439249A CN201610948701.7A CN201610948701A CN106439249A CN 106439249 A CN106439249 A CN 106439249A CN 201610948701 A CN201610948701 A CN 201610948701A CN 106439249 A CN106439249 A CN 106439249A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- socket joint
- pipe
- wall
- sealing ring
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention discloses a water supply and drainage anticorrosion steel pipe. The water supply and drainage anticorrosion steel pipe comprises a steel pipe, wherein a wear-resistant paint layer is arranged on the inner wall of the steel pipe; and a resin fiber glass fiber reinforced plastic layer is arranged on the outer wall of the steel pipe. A production technique disclosed by the invention is reasonable; a rotation-type sandblasting derusting mode is adopted; derusting is rapid and convenient; time and labor are saved; furthermore, the adhesion strength of the steel pipe subjected to sandblasting derusting for paint and resin fiber glass fiber reinforced plastics is better; product stability is good; production efficiency is high; the integral corrosion resistance of products is good; after the inner wall is coated with the wear-resistant paint in a rotary spraying mode, and the outer wall is wound by the resin fiber glass fiber reinforced plastics, curing treatment is performed with infrared in an auxiliary mode; adhesion strength between the corrosion-resistant layers of the inner and outer walls and the pipeline is high; connection between pipe sections is convenient; construction speed is high; connection stability is good; assembly is performed in a mode that a socket head and a socket sleeve are matched with each other; and the socket head and the socket sleeve are separately provided with a sealing ring, so that a good sealing effect is realized for a water flow inside.
Description
Technical field：
The present invention relates to a kind of plumbing anti-corrosive steel tube and its preparation technology and attachment structure.
Background technology：
Steel pipe is applied widely in plumbing, with the decline of price of steel product, steel pipe answering in plumbing field
With occupying overwhelming dominance.But as water supply and sewerage pipeline is typically by the way of provided underground, therefore pipe corrosion is steel
A problem demanding prompt solution of the pipe in plumbing application.How using following methods, anti-corrosion is carried out now：1st, three cloth, five oil is outer
Encapsulated type is applied, the technological means of the technology fall behind, and manufacture work progress pollution is more serious, and service life is short, basic in China
On be eliminated；2nd, brushing clay aseptic technic, adopts now substantially without accurate, and current steel pipe inside and outside wall is typically using spraying
Epoxy Resin Technology is realizing anti-corrosion, but epoxy resin often bonds loosely, easy delamination, foaming and relatively costly；3、
3PE aseptic technic is the anticorrosive coat for coating epoxy powder, adhesive and polyethylene three-layer composite structure in pipe surface, can be effective
Resistance to chemical attack, resistance to cathodic disbonding, mechanical resistant destructive characteristics are improved, range of application is extremely wide, but due in course of conveying,
Body easily produces radial wobble, causes adhesive, polyethylene anticorrosive coating elasticity in lateral winding process inconsistent, reduces
The performance of the corrosion-inhibiting coating of steel pipe, in addition, the technology is not suitable for the tubing of heavy caliber or super large caliber.
Content of the invention：
The present invention is in order to make up the deficiencies in the prior art, there is provided a kind of plumbing anti-corrosive steel tube and its preparation technology and
Attachment structure, its production technology is reasonable, and product stability is good, production efficiency height, and the overall preservation performance of product is good, anticorrosive coat with
Adhesion strength height between pipeline, easy to connect between pipeline section, speed of application is fast, and connective stability is good, solves prior art
Present in problem.
The present invention by solving the technical scheme that adopts of above-mentioned technical problem is：
A kind of plumbing anti-corrosive steel tube, including a steel pipe, is provided with wear-resistant paint layer in steel pipe inner wall, is provided with outer wall of steel pipe
Resin fibre frp layer.
A kind of preparation technology of plumbing anti-corrosive steel tube, comprises the steps：
S1：Steel pipe to be processed is placed on electric roller frame；
S2：Start electric roller frame and steel pipe rotary to be processed is driven, far infrared flaw detection is carried out to steel pipe, if steel pipe does not have in itself
Defective in quality, carry out S3；
S3：Derusting by sandblasting is carried out to the steel pipe inside and outside wall for rotating；
S4：Dedusting is carried out to the steel pipe inside and outside wall for rotating；
S5：To the pipe inner-wall spraying wear-resistant paint for rotating；
S6：Resin fibre fiberglass is wound to the outer wall of steel pipe for rotating；
S7：Cured is done to resin fibre fiberglass.
Preferably, in S7, cured is done to resin fibre fiberglass by infrared ray radiation.
A kind of attachment structure of steel water-supply-pipe, including socket joint set, the two ends of the socket joint set are fitted with plumbing respectively
Pipeline, the spacing shock absorbing ring that clamp one is abutted with water supply and sewerage pipeline in the middle part of socket joint covers, in the socket joint set of spacing shock absorbing ring both sides
If arterial highway seal groove is respectively equipped with inwall or supplying drainage pipeline outer wall, be respectively equipped with sealing ring in seal groove.
Preferably, the end of the water supply and sewerage pipeline is connected with bell-and-spigot pipe, and bell-and-spigot pipe is abutted with spacing shock absorbing ring, described close
Seal groove is located in the socket joint set inwall of spacing shock absorbing ring both sides or socket joint pipe outer wall, outside the bell-and-spigot pipe in the outside of seal groove
If being bonded with arterial highway bell-and-spigot pipe sealing ring on wall, bell-and-spigot pipe sealing ring is abutted with socket joint set.
Preferably, the bell-and-spigot pipe sealing ring is water-swellable sealing ring, and the sealing ring in the seal groove is ternary
The high-elastic sealing ring of second third.
Preferably, the socket joint set middle part is provided with the dovetail groove being equipped with spacing shock absorbing ring, spacing shock absorbing ring bottom
It is installed in dovetail groove, spacing shock absorbing ring top cross-section is for trapezoidal, and the steel tube end part and spacing shock absorbing ring sidepiece are against fitting
Arrange.
Preferably, the seal groove is that dovetail groove, the sealing ring is equipped with corresponding dovetail groove, in sealing
Circle bottom and top are respectively arranged with W shape end face.
Preferably, it is respectively provided on two sides with through what socket joint covered in spacing shock absorbing ring and suppresses mouth.
Preferably, the socket joint set is fiberglass socket joint set.
Preferably, the outermost bell-and-spigot pipe sealing ring covers the distance between end with corresponding socket joint and is at least
130mm；The end birdsmouth end face of the socket joint set is set to chamfering in acute angle shape；The socket joint end surfaces are set to acute angle shape
Outer chamfering.
Compared with prior art, it is an advantage of the invention that：Its production technology is reasonable, using rotary derusting by sandblasting, eliminates rust
Quick rapid, time saving and energy saving, and through the steel pipe after sandblasting dedusting for coating, resin fibre fiberglass adhesion strength more
Good；Product stability is good, production efficiency height, and the overall preservation performance of product is good, and inwall carries out rotary spraying with wear-resistant paint, outward
Wall carries out cured with infrared ray auxiliary, between the anticorrosive coat of inside and outside wall and pipeline using after resin fibre glass reinforced plastic winding
Adhesion strength height；Easy to connect between pipeline section, speed of application is fast, and connective stability is good, is coordinated using socket joint head and socket joint set
The mode of setting is installed, and is respectively provided with sealing ring, plays well for internal current on socket joint head and socket joint set
Sealing function.
Description of the drawings：
Fig. 1 is the structural representation that the present invention is placed on electric roller frame.
Fig. 2 is the structural representation of attachment structure.
Fig. 3 is the schematic cross-section of sealing ring.
In figure, 1, water supply and sewerage pipeline, 2, seal groove, 4, spacing shock absorbing ring, 5, bell-and-spigot pipe, 7, bell-and-spigot pipe sealing ring, 8,
Socket joint set, 9, W shape end face, 10, suppress mouth, 11, chamfering in acute angle shape, 12, the outer chamfering of acute angle shape, 13, wear-resistant paint layer, 14,
Resin fibre frp layer.
Specific embodiment：
For the technical characterstic of this programme clearly can be described, below by specific embodiment, and its accompanying drawing is combined, to this
Bright it is described in detail.
As Figure 1-3, a kind of plumbing anti-corrosive steel tube, including a steel pipe 1, is provided with wear-resistant paint layer in 1 inwall of steel pipe
13, resin fibre frp layer 14 is provided with 1 outer wall of steel pipe.Outside is provided with resin fibre frp layer 14, can completely cut off outside
Environment and steel pipe, placing steel tubes are corroded；The wear-resistant paint layer 13 that inside is provided with, is prevented from forming algae, and anti-impact brushing force is strong.
A kind of preparation technology of plumbing anti-corrosive steel tube, comprises the steps：
S1：Steel pipe to be processed 1 is placed on electric roller frame；
S2：Starting electric roller frame drives steel pipe 1 to be processed to rotate, and carries out far infrared flaw detection to steel pipe 1, if steel pipe 1
Body does not have quality problems, carries out S3；
S3：Derusting by sandblasting is carried out to 1 inside and outside wall of steel pipe for rotating；
S4：Dedusting is carried out to 1 inside and outside wall of steel pipe for rotating；
S5：To the 1 inner-wall spraying wear-resistant paint of steel pipe for rotating；
S6：Resin fibre fiberglass is wound to 1 outer wall of steel pipe for rotating；
S7：Cured is done to resin fibre fiberglass.
Steel pipe 1 is placed on electric roller frame carries out far infrared flaw detection, derusting by sandblasting, dedusting and preservative treatment, energy
The enough speed for optimizing processing, makes single tube processing length at least double, reduces weld seam, so as to reduce leak source.
In S7, cured is done to resin fibre fiberglass by infrared ray radiation.Make solidification effect more preferable, resin fibre
Dimension fiberglass is even closer with what steel pipe 1 was fitted.
A kind of attachment structure of steel water-supply-pipe, covers 8 including socket joint, and the two ends of the socket joint set 8 are fitted with discharge respectively
Waterpipe 1, covers, in socket joint, the spacing shock absorbing ring 4 that 8 middle part clamps one are abutted with water supply and sewerage pipeline 1, in 4 both sides of spacing shock absorbing ring
If socket joint is covered on 8 inwalls or 1 outer wall of water supply and sewerage pipeline is respectively equipped with arterial highway seal groove 2, it is respectively equipped with seal groove 2 close
Seal.
The end of water supply and sewerage pipeline 1 is connected with bell-and-spigot pipe 5, and bell-and-spigot pipe 5 is abutted with spacing shock absorbing ring 4, the seal groove 2
It is located at the socket joint in 4 both sides of spacing shock absorbing ring to cover on 8 inwalls or 5 outer wall of bell-and-spigot pipe, in the bell-and-spigot pipe 5 in the outside of seal groove 2
If being bonded with arterial highway bell-and-spigot pipe sealing ring 7 on outer wall, bell-and-spigot pipe sealing ring 7 is abutted with socket joint set 8.Using this kind of docking mode,
There is certain flexibility, can effectively resist the disasters such as setting of ground, earthquake, it is to avoid infiltration.And installation rate is fast, compared with existing
The welding connecting mode that stage adopts, speed of application is fast, construction quality height.
Using this kind of docking mode, there is certain flexibility, can effectively resist the disasters such as setting of ground, earthquake, it is to avoid
Infiltration.And installation rate is fast, compared with the welding connecting mode for adopting at this stage, speed of application is fast, construction quality height.
Sealing ring in the bell-and-spigot pipe sealing ring 7 is water-swellable sealing ring, and the sealing ring in the seal groove 2 is
The high-elastic sealing ring of EPDM.Due to the characteristic of present configuration, if water oozes out, need to first pass through the sealing in seal groove 2
Circle, then bell-and-spigot pipe sealing ring 7 is penetrated, water-swellable sealing ring being adopted in bell-and-spigot pipe sealing ring 7, effectively can prevent from penetrating
The water of the sealing ring in seal groove 2 continues toward exosmosis.
8 middle part of socket joint set is provided with the dovetail groove being equipped with spacing shock absorbing ring 4,4 bottom clamp of spacing shock absorbing ring
In dovetail groove, 4 top cross-section of spacing shock absorbing ring is that inverted trapezoidal, 1 end of the water supply and sewerage pipeline is tight with 4 sidepiece of spacing shock absorbing ring
Arrange by laminating.Spacing shock absorbing ring 4 mainly has following purposes：For the spacing of two bell-and-spigot pipes 5；Spacing when an earthquake occurs subtract
The caoutchouc elasticity of shake circle 4 plays cushioning effect；The steel pipe both ends of the surface for preventing the expansion of 1 heat of water supply and sewerage pipeline to cause mutually are supportted
Effect.
The seal groove 2 is dovetail groove, and the sealing ring is equipped with corresponding dovetail groove, in sealing ring bottom
W shape end face 9 is respectively arranged with top.Connection between sealing ring and seal groove can be strengthened using dovetail groove snap fit
Intensity, arranges W shape end face 9 and can strengthen sealing, reduces the fault conditions such as leak as far as possible.
Spacing shock absorbing ring 4 be respectively provided on two sides with through socket joint set 8 suppress mouth 10.For bulge test.
The socket joint set 8 is fiberglass socket joint set.Intensity is high, corrosion-resistant, it is adaptable to the environment used by the present invention.Socket joint set
The sharp place of 8 both ends of the surface is respectively provided with chamfering, convenient installation, and safety during installation is good.
The outermost bell-and-spigot pipe sealing ring 7 covers the distance between 8 ends with corresponding socket joint and is at least 130mm.Energy
Enough ensure that pipe sinks, and bell-and-spigot pipe sealing ring 7 is without departing from bell-and-spigot pipe 8 after some special operation conditions cause ground to sink.Separately
Outward, it is not less than 30mm, two adjacent socket joints apart from the distance between the nearest seal groove 2 of spacing shock absorbing ring 4 and spacing shock absorbing ring 4
The distance between seal of tube circle 7 is not less than 60mm, keeps certain distance, it is ensured that waterproof effect between water repellent component.
The end birdsmouth end face of the socket joint set is set to chamfering 11 in acute angle shape.The socket joint end surfaces are set to sharp
Angular outer chamfering 12.Convenient installation, the setting of each acute angle can play good guide effect when mounted.
During use, bonding bell-and-spigot pipe sealing ring 7 first on bell-and-spigot pipe 5, and sealing ring is placed in seal groove 2, and will
The present invention is connected to the end of water supply and sewerage pipeline 1, then bell-and-spigot pipe 5 is plugged in socket joint set 8, and is connected in socket joint set 8
Spacing shock absorbing ring 4 on, bell-and-spigot pipe 5 is plugged into the another of socket joint set 8 equally also after the connection present invention by the pipeline of the other end
On side, and the spacing shock absorbing ring 4 being connected in socket joint set 8, that is, complete to install.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification that embodiment of the present invention is made or conversion are all fallen within protection scope of the present invention.
The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (10)
1. a kind of plumbing anti-corrosive steel tube, it is characterised in that：Including a steel pipe, wear-resistant paint layer is provided with steel pipe inner wall, in steel
Pipe outer wall is provided with resin fibre frp layer.
2. a kind of preparation technology of plumbing anti-corrosive steel tube as claimed in claim 1, it is characterised in that：Comprise the steps：
S1：Steel pipe to be processed is placed on electric roller frame；
S2：Start electric roller frame and steel pipe rotary to be processed is driven, far infrared flaw detection is carried out to steel pipe, if steel pipe does not have matter in itself
Amount problem, carries out S3；
S3：Derusting by sandblasting is carried out to the steel pipe inside and outside wall for rotating；
S4：Dedusting is carried out to the steel pipe inside and outside wall for rotating；
S5：To the pipe inner-wall spraying wear-resistant paint for rotating；
S6：Resin fibre fiberglass is wound to the outer wall of steel pipe for rotating；
S7：Cured is done to resin fibre fiberglass.
3. the preparation technology of a kind of plumbing anti-corrosive steel tube according to claim 2, it is characterised in that：In S7, pass through
Infrared ray radiation does cured to resin fibre fiberglass.
4. a kind of attachment structure of plumbing anti-corrosive steel tube as claimed in claim 1, it is characterised in that：Including socket joint set, institute
The two ends for stating socket joint set are fitted with steel pipe respectively, and the spacing shock absorbing ring that clamp one is abutted with steel pipe in the middle part of socket joint covers, spacing
If being respectively equipped with arterial highway seal groove on the socket joint set inwall of shock absorbing ring both sides or outer wall of steel pipe, it is respectively equipped with seal groove
Sealing ring.
5. the attachment structure of a kind of plumbing anti-corrosive steel tube according to claim 4, it is characterised in that：The end of the steel pipe
Portion is connected with bell-and-spigot pipe, and bell-and-spigot pipe is abutted with spacing shock absorbing ring, and the seal groove is located at the socket joint set of spacing shock absorbing ring both sides
On inwall or socket joint pipe outer wall, if being bonded with arterial highway bell-and-spigot pipe sealing ring in the socket joint pipe outer wall in the outside of seal groove, hold
Intubation sealing ring is abutted with socket joint set.
6. the attachment structure of a kind of plumbing anti-corrosive steel tube according to claim 4, it is characterised in that：The bell-and-spigot pipe is close
Seal is water-swellable sealing ring, and the sealing ring in the seal groove is the high-elastic sealing ring of EPDM.
7. the attachment structure of a kind of plumbing anti-corrosive steel tube according to claim 4, it is characterised in that：In the socket joint set
Portion is provided with the dovetail groove being equipped with spacing shock absorbing ring, and spacing shock absorbing ring bottom is installed in dovetail groove, spacing shock absorbing ring top
Portion section is trapezoidal, and the steel tube end part is with spacing shock absorbing ring sidepiece against setting of fitting.
8. the attachment structure of a kind of plumbing anti-corrosive steel tube according to claim 4, it is characterised in that：The seal groove
For dovetail groove, the sealing ring is equipped with corresponding dovetail groove, is respectively arranged with W shape end in sealing ring bottom and top
Face.
9. the attachment structure of a kind of plumbing anti-corrosive steel tube according to claim 4, it is characterised in that：In spacing shock absorbing ring
It is respectively provided on two sides with through what socket joint covered and suppresses mouth.
10. the attachment structure of a kind of plumbing anti-corrosive steel tube according to claim 4, it is characterised in that：The socket joint set
Cover for fiberglass socket joint or steel socket joint set；Between the outermost bell-and-spigot pipe sealing ring and corresponding socket joint set end away from
From at least 130mm；The end birdsmouth end face of the socket joint set is set to chamfering in acute angle shape；The socket joint end surfaces are arranged
For the outer chamfering of acute angle shape..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948701.7A CN106439249A (en) | 2016-10-26 | 2016-10-26 | Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948701.7A CN106439249A (en) | 2016-10-26 | 2016-10-26 | Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439249A true CN106439249A (en) | 2017-02-22 |
Family
ID=58178702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610948701.7A Pending CN106439249A (en) | 2016-10-26 | 2016-10-26 | Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439249A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806536A (en) * | 2017-11-14 | 2018-03-16 | 山东省呈祥电工电气有限公司 | A kind of modified epoxy glass winding anti-corrosive steel tube and preparation method thereof |
| CN107816585A (en) * | 2017-10-26 | 2018-03-20 | 中国石油集团渤海石油装备制造有限公司 | A kind of attachment means of large-diameter steel pipe and glass reinforced plastic pipe |
| CN107825070A (en) * | 2017-10-20 | 2018-03-23 | 中交广州航道局有限公司 | Dredging pipe and its processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459509Y (en) * | 2000-11-28 | 2001-11-14 | 李海军 | Isolation, corrosion-resistant composite pipe |
| CN1327527A (en) * | 1999-01-22 | 2001-12-19 | C-技术有限公司 | Pipe coupling for plastic pipes |
| CN1821649A (en) * | 2006-03-30 | 2006-08-23 | 中冶集团北京冶金设备研究设计总院 | Producing equipment and method for inorganic material composite coating steel pipeline |
| CN201992253U (en) * | 2011-03-31 | 2011-09-28 | 赵炳泉 | Glass fiber-reinforced plastic pipe joint and mold |
| CN202746804U (en) * | 2012-09-17 | 2013-02-20 | 宁波永享铜管道有限公司 | Copper pipe connector |
| CN202972235U (en) * | 2012-12-11 | 2013-06-05 | 浙江伟星新型建材股份有限公司 | Abrasion-resistant composite pipe for conveying slurry |
| CN203585640U (en) * | 2013-11-18 | 2014-05-07 | 刘欣传 | High-rise high-pressure fire fighting hose coupling |
-
2016
- 2016-10-26 CN CN201610948701.7A patent/CN106439249A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327527A (en) * | 1999-01-22 | 2001-12-19 | C-技术有限公司 | Pipe coupling for plastic pipes |
| CN2459509Y (en) * | 2000-11-28 | 2001-11-14 | 李海军 | Isolation, corrosion-resistant composite pipe |
| CN1821649A (en) * | 2006-03-30 | 2006-08-23 | 中冶集团北京冶金设备研究设计总院 | Producing equipment and method for inorganic material composite coating steel pipeline |
| CN201992253U (en) * | 2011-03-31 | 2011-09-28 | 赵炳泉 | Glass fiber-reinforced plastic pipe joint and mold |
| CN202746804U (en) * | 2012-09-17 | 2013-02-20 | 宁波永享铜管道有限公司 | Copper pipe connector |
| CN202972235U (en) * | 2012-12-11 | 2013-06-05 | 浙江伟星新型建材股份有限公司 | Abrasion-resistant composite pipe for conveying slurry |
| CN203585640U (en) * | 2013-11-18 | 2014-05-07 | 刘欣传 | High-rise high-pressure fire fighting hose coupling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825070A (en) * | 2017-10-20 | 2018-03-23 | 中交广州航道局有限公司 | Dredging pipe and its processing method |
| CN107816585A (en) * | 2017-10-26 | 2018-03-20 | 中国石油集团渤海石油装备制造有限公司 | A kind of attachment means of large-diameter steel pipe and glass reinforced plastic pipe |
| CN107816585B (en) * | 2017-10-26 | 2024-04-16 | 中国石油集团渤海石油装备制造有限公司 | Connecting device for large-caliber steel pipe and glass steel pipe |
| CN107806536A (en) * | 2017-11-14 | 2018-03-16 | 山东省呈祥电工电气有限公司 | A kind of modified epoxy glass winding anti-corrosive steel tube and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106439249A (en) | Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same | |
| CN103925455A (en) | Water pipeline joint coating protecting method and structure | |
| CN103322364B (en) | The connecting means of internal and external anti-corrosive steel-plastic composite pipe | |
| CN206299928U (en) | A kind of gas field gathering line weld bond leakage-proof structure | |
| CN204004910U (en) | A kind of corrugated nozzle cuff structure connecting for corrugated steel culvert | |
| CN106764110A (en) | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method | |
| CN203413252U (en) | Device for connecting inner and outer anticorrosive steel plastic composite pipes | |
| CN210440745U (en) | Pipeline connecting piece structure for reducing straight pipe | |
| CN201817810U (en) | Anti-corrosion device for tubular pile connecting joints in corrosive soil layers or underground water environments | |
| CN205298859U (en) | Compound pipe of steel skeleton PE plastics | |
| CN201696809U (en) | External anti-corrosion composite joint coating layer for steel pipes | |
| CN211525787U (en) | Middle baking varnish joint of flexible composite high, middle and low pressure stripping pipe | |
| CN204004911U (en) | A kind of half waveform pipe hoop structure connecting for corrugated steel culvert | |
| CN211423584U (en) | Heavy-duty anti-corrosion marine organism seawater circulating pipeline for power plant | |
| CN204004929U (en) | A kind of flanged pipe cuff structure connecting for corrugated steel culvert | |
| CN206268675U (en) | A kind of attachment structure of steel water-supply-pipe | |
| CN207018719U (en) | A kind of plastic union pipe head seal | |
| KR101281507B1 (en) | Tube for inhibiting corrosion of pipe connecting portion | |
| CN103115220A (en) | 3PE antiseptic steel pipe flange connection method | |
| CN203823255U (en) | Fire-fighting underground high-pressure-resistant plastic composite tube | |
| CN204000649U (en) | A kind of concave pipe cuff structure connecting for corrugated steel culvert | |
| CN206513955U (en) | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline | |
| CN206918456U (en) | A kind of immersible pump lifting pipe | |
| CN205689926U (en) | A kind of plastic-coated steel with adpting flange | |
| CN205226757U (en) | A positive left -hand thread ferrule connection structure for interior outer anti -corrosion pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
|
| RJ01 | Rejection of invention patent application after publication |