CN205101728U - A plastics bush structure for serving as a contrast plastic steel pipe flange joint - Google Patents
A plastics bush structure for serving as a contrast plastic steel pipe flange joint Download PDFInfo
- Publication number
- CN205101728U CN205101728U CN201520869731.XU CN201520869731U CN205101728U CN 205101728 U CN205101728 U CN 205101728U CN 201520869731 U CN201520869731 U CN 201520869731U CN 205101728 U CN205101728 U CN 205101728U
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- Prior art keywords
- plastic
- flange
- layer
- steel pipe
- tube
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- Expired - Fee Related
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Abstract
The utility model discloses a plastics bush structure for serving as a contrast plastic steel pipe flange joint, including lining plastic steel pipe and flange, lining plastic steel pipe comprises outer steel pipe and the plastic tubing that sets up at outer steel pipe inner wall, still includes to cover to mould layer and the adhesive linkage, cover mould the layer set up the sealed face of flange go up and the plastic tubing on, cover that mould layer through adhesive linkage and flange sealed and a plastic tubing is connected, covering and moulding the layer and link into an integrated entity with flange and plastic tubing, the flange seal face does not contact with fluid medium, has more excellent anti -corrosion performance. The two -layer structure of this kind simultaneously, inlayer adhesive linkage had both been played the bonding effect and had also been played the antiseep effect, and the skin covers to be moulded the anticorrosive coating and both played the preservation and also play the structure humidification.
Description
Technical field
The utility model relates generally to the line plastic-steel tube adopting Flange joint, relates to a kind of plastic bushing of line plastic-steel tube Flange joint more specifically.
Background technique
The issuing and implementation of GB GB/T28897-2012 " steel-plastic composite pipe " standard, require to have risen to a new height by the manufacturing of line plastic-steel tube.Specify that first in this NBS and adopt the line plastic-steel tube factory state of Flange joint: the lining plastic layer of flanged (FLGD) plastic lining composite steel pipe should cover with flanged surface to be moulded layer and be linked to be an entirety (selecting from 7.1.2 article in GB/T28897-2012 standard); Meanwhile, in this standard, clear stipulaties flanged surface covers the plastic thickness requirement of moulding layer.Given this, adopt the line plastic-steel tube of Flange joint interior anticorrosive coat must be covered flange facing when dispatching from the factory and flanged surface covers and moulds layer and inner lining of steel pipe and mould layer and must be linked to be an entirety, the utility model mainly will solve problems.
Separately there is China Patent No. 201320651754.4, disclose line plastic-steel tube flange seal linkage structure, comprise line plastic-steel tube, flange and seal washer, described line plastic-steel tube is made up of outer steel pipe and lining plastic, flange is connected to the connection pipe end of line plastic-steel tube, seal washer is between flange, described seal washer is two panels rubber washer, the extension part that every sheet rubber washer is extended by side radial in annular outer end and outer end forms, outer end abuts on flanged surface, extension part extends, with the lining plastic seamless link of line plastic-steel tube to both sides flange inner wall.The utility model changes original two panels hard plastic packing ring and a slice rubber washer into two pieces rubber washer, in rubber washer, radial both sides flange inner wall extends, with the lining plastic seamless link of line plastic-steel tube, although above-mentioned patent can reduce the space between connection, the effect of preventing water leakage, but at end face of flange, seal washer first is installed, rubber ring than steel pipe and flange inner diameter little, can seep water and not have antiseptic effect simultaneously, they are two years old, rubber is partially soft does not have rigidity, does not have bracing reinforcement effect to port overlapping part.
Model utility content
In order to overcome the defect of above-mentioned prior art, the utility model provides a kind of plastic bushing structure for line plastic-steel tube Flange joint, its objective is that steel pipe inner wall and flange facing all have plastic lining layer to cover and inner lining of steel pipe moulds layer and flange facing plastic lining layer connects into as a whole, stop flowing medium and flanged surface substrate contact, make it have good antiseptic power and pipe-line system sealability can not be caused to decline, ensureing security of system.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of plastic bushing structure for line plastic-steel tube Flange joint, comprise line plastic-steel tube and flange, described line plastic-steel tube is made up of outer steel pipe and the plastic tube being arranged on outer steel pipe inner wall, it is characterized in that: also comprise covering and mould layer and adhesive layer, described covering is moulded on plastic tube on sealing surface that layer is arranged on flange and described, described covering is moulded layer and is connected by the sealing surface of adhesive layer and flange and plastic tube, described in cover and mould layer and flange and plastic tube and link into an integrated entity.
Described covering is moulded layer and is extended in plastic tube, covers to mould layer and linked into an integrated entity by adhesive layer and plastic tube.
During line plastic-steel tube docking, covering on flange facing is moulded on layer and is also provided with seal ring.
The utility model has the following advantages:
1, the utility model is directly moulded covering on plastic tube on sealing surface that layer is bonded in flange and described by adhesive layer, and flange facing does not contact with flowing medium, has more excellent Corrosion Protection.Simultaneously this double-layer structure, internal layer adhesive layer had both played bonding effect and had also played leakage proof effect, and skin covers to be moulded anticorrosive coat and both played antisepsis and also play structural re-enforcement.
2, when the utility model pipeline connects, directly seal ring is positioned over above flange facing plastic lining layer, connecting bolt is penetrated in flange connecting hole, and then penetrate corresponding pad, attaching nut is screwed in bolt thread end to screw and can complete installation, this installation process is efficient and convenient, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model mounting connection structure schematic diagram in pipe-line system.
Mark in figure: 1, line plastic-steel tube, 2, outer steel pipe, 3, plastic tube, 4, flange, 5, cover and mould layer, 6, adhesive layer, 7, seal ring, 8, connecting bolt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment 1
As shown in Figure 1, a kind of plastic bushing structure for line plastic-steel tube Flange joint, comprise line plastic-steel tube 1 and flange 4, flange 4 is located at the connection pipe end of line plastic-steel tube 1 respectively, described line plastic-steel tube 1 is made up of with the plastic tube 3 being arranged on outer steel pipe 2 inwall outer steel pipe 2, also comprise covering and mould layer 5 (i.e. laminated plastics) and adhesive layer 6, described covering is moulded layer 5 and is arranged on the sealing surface of flange 4, cover and mould layer 5 and be also arranged on the plastic tube 3 of outer steel pipe 2 inwall, its set-up mode for: described in cover and mould layer 5 and undertaken connecting (namely by the sealing surface of adhesive layer 6 and flange 4 and plastic tube 3, cover and mould on sealing surface and plastic tube 3 that layer 5 is bonded in flange 4 by binder), the nonwoven fabric from filaments that adhesive layer 6 is formed for binder, described covering is moulded layer 5 and is linked into an integrated entity with flange 4 and plastic tube 3.
Further preferably, described in cover and mould layer 5 and extend in plastic tube 3, cover and mould layer 5 and linked into an integrated entity by adhesive layer 6 and plastic tube 3, cover and mould layer 5 plastic tube 3 is covered a part.
Preferably, when line plastic-steel tube 1 docks, covering on flange 4 sealing surface is moulded on layer 5 and is also provided with seal ring 7.
Embodiment 2
As shown in Figure 2, a kind of plastic bushing structure for line plastic-steel tube Flange joint, comprise line plastic-steel tube 1 and flange 4, flange 4 is located at the connection pipe end of line plastic-steel tube 1 respectively, described line plastic-steel tube 1 is made up of with the plastic tube 3 being arranged on outer steel pipe 2 inwall outer steel pipe 2, also comprise covering and mould layer 5 (i.e. laminated plastics) and adhesive layer 6, described covering is moulded layer 5 and is arranged on the sealing surface of flange 4, cover and mould layer 5 and be also arranged on the plastic tube 3 of outer steel pipe 2 inwall, its set-up mode for: described in cover and mould layer 5 and undertaken connecting (namely by the sealing surface of adhesive layer 6 and flange 4 and plastic tube 3, cover and mould on sealing surface and plastic tube 3 that layer 5 is bonded in flange 4 by binder), the nonwoven fabric from filaments that adhesive layer 6 is formed for binder, described covering is moulded layer 5 and is linked into an integrated entity with flange 4 and plastic tube 3.
The flanged line plastic-steel tube 1 dispatched from the factory is that the inwall of steel pipe 2 is outside lined with plastic tube 3, and have flange 4 in the connecting tube end band of line plastic-steel tube 1, then assembly flange sealing surface covers and moulds layer 5, the adhesive layer 6 formed by binder will be covered to be moulded layer 5 and connects into as a whole with flange and line plastic-steel tube, during flange plastic-lined steel pipe docking, seal ring 7 is positioned over flanged surface to cover and mould on layer 5, another is needed the flange plastic-lined steel pipe flange hole alignment connected, bolt 8 is penetrated in flange connecting hole, in succession penetrate flat gasket, after compression spring, locking nut is screwed in connecting bolt 8 to tighten above and fasteningly namely complete installation process.
Claims (3)
1. the plastic bushing structure for line plastic-steel tube Flange joint, comprise line plastic-steel tube (1) and flange (4), described line plastic-steel tube (1) is made up of outer steel pipe (2) and the plastic tube (3) that is arranged on outer steel pipe (2) inwall, it is characterized in that: also comprise covering and mould layer (5) and adhesive layer (6), described covering is moulded on plastic tube (3) on sealing surface that layer (5) is arranged on flange (4) and described, described covering is moulded layer (5) and is connected by the sealing surface of adhesive layer (6) and flange (4) and plastic tube (3), described covering moulds layer (5) and flange (4) and plastic tube (3) links into an integrated entity.
2. a kind of plastic bushing structure for line plastic-steel tube Flange joint according to claim 1, it is characterized in that: described in cover and mould layer (5) and extend in plastic tube (3), cover and mould layer (5) and linked into an integrated entity by adhesive layer (6) and plastic tube (3).
3. a kind of plastic bushing structure for line plastic-steel tube Flange joint according to claim 1, it is characterized in that: during line plastic-steel tube (1) docking, covering on flange (4) sealing surface is moulded on layer (5) and be also provided with seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869731.XU CN205101728U (en) | 2015-11-03 | 2015-11-03 | A plastics bush structure for serving as a contrast plastic steel pipe flange joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869731.XU CN205101728U (en) | 2015-11-03 | 2015-11-03 | A plastics bush structure for serving as a contrast plastic steel pipe flange joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205101728U true CN205101728U (en) | 2016-03-23 |
Family
ID=55517509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520869731.XU Expired - Fee Related CN205101728U (en) | 2015-11-03 | 2015-11-03 | A plastics bush structure for serving as a contrast plastic steel pipe flange joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205101728U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782639A (en) * | 2016-03-29 | 2016-07-20 | 中国海洋石油总公司 | Coating technology of coating of flange sealing surface |
| CN106764209A (en) * | 2016-12-27 | 2017-05-31 | 重庆永高塑业发展有限公司 | Facilitate connecting-type plastic conduit |
| CN110226065A (en) * | 2016-12-13 | 2019-09-10 | 孟山都技术公司 | Bamp joint component for flammable liquid |
-
2015
- 2015-11-03 CN CN201520869731.XU patent/CN205101728U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782639A (en) * | 2016-03-29 | 2016-07-20 | 中国海洋石油总公司 | Coating technology of coating of flange sealing surface |
| CN110226065A (en) * | 2016-12-13 | 2019-09-10 | 孟山都技术公司 | Bamp joint component for flammable liquid |
| CN110226065B (en) * | 2016-12-13 | 2022-01-25 | 孟山都技术公司 | Flange joint assembly for flammable liquids |
| CN106764209A (en) * | 2016-12-27 | 2017-05-31 | 重庆永高塑业发展有限公司 | Facilitate connecting-type plastic conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20161103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |