CN104110553A - Anti-corrosion high-pressure corrugated pipe compensator - Google Patents
Anti-corrosion high-pressure corrugated pipe compensator Download PDFInfo
- Publication number
- CN104110553A CN104110553A CN201410282431.1A CN201410282431A CN104110553A CN 104110553 A CN104110553 A CN 104110553A CN 201410282431 A CN201410282431 A CN 201410282431A CN 104110553 A CN104110553 A CN 104110553A
- Authority
- CN
- China
- Prior art keywords
- corrugated pipe
- bellows
- pressure
- corrosion
- teflon
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 15
- 239000004809 Teflon Substances 0.000 claims abstract description 31
- 229920006362 Teflon® Polymers 0.000 claims abstract description 31
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims abstract description 6
- 230000007797 corrosion Effects 0.000 claims description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations
- F16L51/027—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations with external reinforcement
-
- 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
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention discloses an anti-corrosion high-pressure corrugated pipe compensator which comprises a corrugated pipe and connecting flanges. The corrugated pipe is connected with the connecting flanges at the two ends of the corrugated pipe to form a corrugated pipe compensation structure, and a teflon lining pipe is arranged in the corrugated pipe. The teflon lining pipe adheres to the inner wall of the corrugated pipe and is formed by compounding an inner glass fiber cloth layer and an outer teflon layer through high-temperature and high-pressure hot melting. The anti-corrosion and high-pressure corrugated pipe compensator is characterized in that reinforcing rings are arranged in the annular grooves of the outer wall of the corrugated pipe. According to the anti-corrosion and high-pressure corrugated pipe compensator, negative pressure rings are not used, the structure is simple, the anti-corrosion and high-pressure corrugated pipe compensator has good positive pressure and negative pressure resistance, and the service life is long.
Description
Technical field
The present invention relates to pipeline compensator, particularly relate to a kind of corrugated expansion joint.
Background technique
Corrugated expansion joint compensates displacement and the installation deviation of expanding with heat and contract with cold for industrial piping system, reduces the vibration of pipe-line system.For carrying the corrugated expansion joint using in the pipe-line system of strong corrosive media, must there is stronger corrosion resistance, prior art is that teflon bushing pipe is set in bellows, because teflon has stronger corrosion resistance, therefore, make corrugated expansion joint there is stronger corrosion resistance; But, because the adhesive property of teflon and metal is poor, also not finding that there is now reasonable glue can make teflon and metal well bond, therefore, will occur in the time there is negative pressure in pipeline, teflon bushing pipe can be out of shape, and even damages, thereby affects the normal use of corrugated expansion joint; For preventing the generation of this phenomenon, prior art is, at teflon bushing pipe inwall, negative pressure ring is set, and it embeds in the annular groove of teflon bushing pipe inwall.This structure has solved the negative pressure problem on deformation of teflon bushing pipe, but this structure also exists defect: the one, negative pressure ring is set, and complex structure, has increased manufacture cost; The 2nd, in using process, between negative pressure ring and teflon bushing pipe inwall, friction for a long time, can gall teflon bushing pipe, thereby affect the decay resistance of corrugated expansion joint, causes the inefficacy of corrugated expansion joint.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose one and do not use negative pressure ring, can make teflon bushing pipe bond with bellows inwall preferably, do not produce the corrosion-resistant high-pressure bellows compensator of negative pressure problem on deformation.
The present invention is achieved through the following technical solutions technical goal.
Corrosion-resistant high-pressure bellows compensator, comprises bellows, adpting flange; Described bellows is connected with the adpting flange at two ends, forms bellows collocation structure, is provided with teflon bushing pipe in described bellows; Described teflon bushing pipe sticks on bellows inwall; Its improvements are: described teflon bushing pipe is composited through High Temperature High Pressure hot melt by glass fiber cloth and the outer field polytetrafluoroethylene floor of internal layer.
In said structure, in described bellows outer wall annular groove, be provided with stiffening ring.
In said structure, described stiffening ring is made up of ringle and the teflon outer that is coated on ringle outer wall.
The present invention compared with prior art, has following good effect:
1, teflon bushing pipe is composited by glass fiber cloth and the outer field polytetrafluoroethylene floor of internal layer, because glass fiber cloth and metal have good adhesive property, therefore teflon bushing pipe can be bonded on bellows inwall well, like this, without negative pressure ring is set, just can solve well the negative pressure problem on deformation of teflon bushing pipe, simplify the structure on the one hand, reduce manufacture cost; On the other hand, teflon bushing pipe inwall is long service time, significant prolongation the working life of corrugated expansion joint.
2, in bellows outer wall annular groove, be provided with stiffening ring, can improve the resistance to malleation ability of corrugated expansion joint.
3, stiffening ring is made up of ringle and the teflon outer that is coated on ringle outer wall, can avoid bellows outer wall directly to contact with the ringle of stiffening ring, thereby avoid direct friction, effectively protects bellows.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is I place partial enlarged drawing in Fig. 1.
Embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments below.
Corrosion-resistant high-pressure bellows compensator shown in accompanying drawing, comprises bellows 2, adpting flange 1; Bellows 2 is connected with the adpting flange 1 at two ends, forms bellows collocation structure, is provided with teflon bushing pipe 3 in bellows 2; Teflon bushing pipe 3 sticks on bellows 2 inwalls; Teflon bushing pipe 3 is composited through High Temperature High Pressure hot melt by glass fiber cloth 3.1 and the outer field polytetrafluoroethylene floor 3.2 of internal layer.
In bellows 2 outer wall annular grooves, be provided with stiffening ring 4, in the present embodiment, stiffening ring 4 is made up of ringle 4.1 and the teflon outer that is coated on ringle 4.1 outer walls.
Claims (3)
1. a corrosion-resistant high-pressure bellows compensator, comprises bellows (2), adpting flange (1); Described bellows (2) is connected with the adpting flange (1) at two ends, forms bellows collocation structure, is provided with teflon bushing pipe (3) in described bellows (2); Described teflon bushing pipe (3) sticks on bellows (2) inwall; It is characterized in that: described teflon bushing pipe (3) is composited through High Temperature High Pressure hot melt by glass fiber cloth (3.1) and the outer field polytetrafluoroethylene floor (3.2) of internal layer.
2. corrosion-resistant high-pressure bellows compensator according to claim 1, is characterized in that: in described bellows (2) outer wall annular groove, be provided with stiffening ring (4).
3. corrosion-resistant high-pressure bellows compensator according to claim 2, is characterized in that: described stiffening ring (4) is made up of ringle (4.1) and the teflon outer that is coated on ringle (4.1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282431.1A CN104110553A (en) | 2014-06-23 | 2014-06-23 | Anti-corrosion high-pressure corrugated pipe compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282431.1A CN104110553A (en) | 2014-06-23 | 2014-06-23 | Anti-corrosion high-pressure corrugated pipe compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104110553A true CN104110553A (en) | 2014-10-22 |
Family
ID=51707470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410282431.1A Pending CN104110553A (en) | 2014-06-23 | 2014-06-23 | Anti-corrosion high-pressure corrugated pipe compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104110553A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763849A (en) * | 2015-03-24 | 2015-07-08 | 苏州新区华士达工程塑胶有限公司 | Polytetrafluoroethylene corrugated pipe |
| CN106015809A (en) * | 2016-06-30 | 2016-10-12 | 江苏新方圆电气设备制造有限公司 | Reinforced type rectangular expansion joint |
| CN106015807A (en) * | 2016-06-22 | 2016-10-12 | 江苏新方圆电气设备制造有限公司 | Energy-saving type corrugated pipe compensator |
| CN106838526A (en) * | 2017-04-06 | 2017-06-13 | 上海板换机械设备有限公司 | Two-dimensional swelling section |
-
2014
- 2014-06-23 CN CN201410282431.1A patent/CN104110553A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763849A (en) * | 2015-03-24 | 2015-07-08 | 苏州新区华士达工程塑胶有限公司 | Polytetrafluoroethylene corrugated pipe |
| CN106015807A (en) * | 2016-06-22 | 2016-10-12 | 江苏新方圆电气设备制造有限公司 | Energy-saving type corrugated pipe compensator |
| CN106015809A (en) * | 2016-06-30 | 2016-10-12 | 江苏新方圆电气设备制造有限公司 | Reinforced type rectangular expansion joint |
| CN106838526A (en) * | 2017-04-06 | 2017-06-13 | 上海板换机械设备有限公司 | Two-dimensional swelling section |
| CN106838526B (en) * | 2017-04-06 | 2019-08-16 | 上海板换机械设备有限公司 | Two-dimensional swelling section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |
|
| WD01 | Invention patent application deemed withdrawn after publication |