CN104075061A - Negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint - Google Patents
Negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint Download PDFInfo
- Publication number
- CN104075061A CN104075061A CN201310107508.7A CN201310107508A CN104075061A CN 104075061 A CN104075061 A CN 104075061A CN 201310107508 A CN201310107508 A CN 201310107508A CN 104075061 A CN104075061 A CN 104075061A
- Authority
- CN
- China
- Prior art keywords
- negative
- teflon
- ring
- lining
- expansion joint
- 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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/024—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube non-metallic
-
- 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 bellows or an expansible folded or corrugated tube
- F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint which comprises flanges, a corrugated pipe and a Teflon lining. The corrugated pipe is fixedly connected with the flanges at two ends to form a corrugated-pipe compensation structure. The Teflon lining is attached to the inner surface of the corrugated pipe. Elastic negative-pressure rings are arranged in ring slots of the corrugated pipe. The elastic negative-pressure rings are circular ring parts and are in clearance fit with the Teflon lining in the ring slots of the corrugated pipe. Further improvement lies in that the negative-pressure rings are composed of annular rings enclosed by elastic metal wires and an outer Teflon lining wrapping the annular rings. The outer Teflon lining is formed by winding of a Teflon band. The annular rings are enclosed by spring steel wires. The Teflon lining is free of deformation even under the action of negative pressure since the Teflon lining is pressed by the negative-pressure rings, and normal use of the lining Teflon expansion joint is thereby guaranteed; the outer Teflon lining wraps the outer wall of the annular rings of the negative-pressure rings, a protecting layer is added between the negative-pressure ring and the Teflon lining, and service life of the lined Teflon expansion joint can be remarkably prolonged.
Description
Technical field
The present invention relates to a kind of pipe safety equipment, specifically, relate to a kind of lining tetrafluoro bellows expansion joint.
Background technique
The lining tetrafluoro bellows expansion joint of prior art comprises flange, bellows, tetrafluoro liner, and bellows is fixedly connected with the flange at two ends, forms bellows collocation structure, and tetrafluoro liner is fitted in bellows inside surface.This lining tetrafluoro bellows expansion joint can not only be for pipe-line system, play length, temperature, position and angle compensation effect, and due to its liner tetrafluoro, make it there is again good corrosion resistance, can be widely used in the pipe-line system of carrying Korrosionsmedium.But this lining tetrafluoro bellows expansion joint exists certain defect: when being applied to the pipe-line system of negative pressure, the negative pressure in pipeline may make tetrafluoro liner produce distortion, thus the normal use of impact lining tetrafluoro bellows expansion joint.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, even if a kind of resistance to negative pressure that can make tetrafluoro liner also can not be out of shape, corrosion-resistant steel lining tetrafluoro expansion joint are provided under suction function.
The present invention is achieved through the following technical solutions technical goal.
Resistance to negative pressure, corrosion-resistant steel lining tetrafluoro expansion joint, comprise flange, bellows, tetrafluoro liner; Described bellows is fixedly connected with the flange at two ends, forms bellows collocation structure; Described tetrafluoro liner is fitted in bellows inside surface; Its improvements are: in bellows annular groove, be provided with elastic negative pressure ring; Described negative pressure ring is circular member, and Spielpassung between tetrafluoro liner in bellows annular groove.
The present invention further improves and is: described negative pressure ring is the ring that elastic metallic yarn surrounds.
The present invention is another kind of further to be improved and is: the ring that described negative pressure ring is surrounded by elastic metallic yarn, the tetrafluoro outer lining being coated on ring form.
Further improvement of the present invention is: described tetrafluoro outer lining is by Teflon tap, to be wrapped in ring to form.
Further improvement of the present invention is: described ring is surrounded by Spring Steel Wire.
The present invention compared with prior art, has following good effect:
1, in bellows annular groove, be provided with elastic negative pressure ring, by negative pressure ring, push down tetrafluoro liner, like this, even tetrafluoro liner can not be out of shape under suction function, thereby guaranteed the normal use of lining tetrafluoro expansion joint yet.
2, the ring outer wall of negative pressure ring is coated with tetrafluoro outer lining, between negative pressure ring and tetrafluoro liner, has increased layer protective layer, the working life of significant prolongation lining tetrafluoro expansion joint.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the local enlarged diagram of I part in Fig. 1.
Embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments below.
Resistance to negative pressure shown in the drawings, corrosion-resistant steel lining tetrafluoro expansion joint, comprise flange 1, bellows 2, tetrafluoro liner 3; Bellows 2 is fixedly connected with the flange 1 at two ends, forms bellows collocation structure; Tetrafluoro liner 3 is fitted in bellows 2 internal surfaces; In bellows 2 annular grooves, be provided with elastic negative pressure ring 4; Negative pressure ring 4 is circular member, and Spielpassung between tetrafluoro liner 3 in bellows 2 annular grooves.
Negative pressure ring 4 has two kinds of preferred structure schemes: a kind of is the ring 4.2 that negative pressure ring 4 surrounds for elastic metallic yarn, another kind is that the ring 4.2 that surrounded by elastic metallic yarn of negative pressure ring 4, the tetrafluoro outer lining 4.1 being coated on ring 4.2 form, and what the present embodiment was selected is rear a kind of.
In the present embodiment, tetrafluoro outer lining 4.1 is by Teflon tap, to be wrapped in ring 4.2 to form, and like this, between negative pressure ring 4 and tetrafluoro liner 3, has increased layer protective layer, can significant prolongation working life of lining tetrafluoro expansion joint.。
In the present embodiment, ring 4.2 is surrounded by Spring Steel Wire.
Claims (5)
1. resistance to negative pressure, a corrosion-resistant steel lining tetrafluoro expansion joint, comprise flange (1), bellows (2), tetrafluoro liner (3); Described bellows (2) is fixedly connected with the flange (1) at two ends, forms bellows collocation structure; Described tetrafluoro liner (3) is fitted in bellows (2) internal surface; It is characterized in that: in bellows (2) annular groove, be provided with elastic negative pressure ring (4); Described negative pressure ring (4) is circular member, and Spielpassung between the interior tetrafluoro liner (3) of bellows (2) annular groove.
2. resistance to negative pressure according to claim 1, corrosion-resistant steel lining tetrafluoro expansion joint, is characterized in that: the ring (4.2) that described negative pressure ring (4) surrounds for elastic metallic yarn.
3. resistance to negative pressure according to claim 1, corrosion-resistant steel lining tetrafluoro expansion joint, is characterized in that: the ring (4.2) that described negative pressure ring (4) is surrounded by elastic metallic yarn, the tetrafluoro outer lining (4.1) being coated on ring (4.2) form.
4. resistance to negative pressure according to claim 3, corrosion-resistant steel lining tetrafluoro expansion joint, is characterized in that: described tetrafluoro outer lining (4.1) is by Teflon tap, to be wrapped in ring (4.2) to form.
5. according to the resistance to negative pressure one of claim 1～3 Suo Shu, corrosion-resistant steel lining tetrafluoro expansion joint, it is characterized in that: described ring (4.2) is surrounded by Spring Steel Wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107508.7A CN104075061A (en) | 2013-03-30 | 2013-03-30 | Negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310107508.7A CN104075061A (en) | 2013-03-30 | 2013-03-30 | Negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104075061A true CN104075061A (en) | 2014-10-01 |
Family
ID=51596538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310107508.7A Pending CN104075061A (en) | 2013-03-30 | 2013-03-30 | Negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104075061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221860A (en) * | 2015-09-22 | 2016-01-06 | 金华市春光橡塑软管有限公司 | A kind of industrial expansion corrugated pipe and preparation method thereof |
| CN109099255A (en) * | 2018-06-20 | 2018-12-28 | 朱海军 | Non-metal expansion joint stressed-skin construction |
-
2013
- 2013-03-30 CN CN201310107508.7A patent/CN104075061A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221860A (en) * | 2015-09-22 | 2016-01-06 | 金华市春光橡塑软管有限公司 | A kind of industrial expansion corrugated pipe and preparation method thereof |
| CN105221860B (en) * | 2015-09-22 | 2017-11-28 | 金华春光橡塑科技股份有限公司 | A kind of industrial expansion corrugated pipe and preparation method thereof |
| CN109099255A (en) * | 2018-06-20 | 2018-12-28 | 朱海军 | Non-metal expansion joint stressed-skin construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104075063A (en) | Corrosion-resistance reinforced corrugated-pipe compensator | |
| CN101761713B (en) | Wear-resisting metal composite hose | |
| CN203258281U (en) | Negative-pressure-resistant corrosion-resistant steel lining tetrafluoroethylene expansion joint | |
| CN104075061A (en) | Negative-pressure resistant and corrosion resistant steel-lined Teflon expansion joint | |
| JP2015014303A (en) | Sealing device | |
| CN106382423A (en) | High-pressure flexible hose | |
| CN104110553A (en) | Anti-corrosion high-pressure corrugated pipe compensator | |
| CN104075062A (en) | Teflon and rubber composite type corrugated expansion joint | |
| CN203258280U (en) | Corrosion-resistant reinforced corrugated pipe compensator | |
| CN203258284U (en) | Composite Teflon inner lining bellows compensator | |
| JP2007239840A (en) | Anticorrosion structure of pipe-end face | |
| CN103162055A (en) | Novel multifunctional ripple compensator | |
| CN104075046A (en) | Negative-pressure resistant reinforced metal hose | |
| CN104154372A (en) | Teflon lining and corrugated pipe compound compensator | |
| CN204879136U (en) | A thermal -insulated lantern ring that is used for on --spot interface of compound hose of pipeline inside lining | |
| CN104019317A (en) | Two-way thrust-free directly-buried compensator | |
| CN205690002U (en) | A kind of socket joint type channel bend insulation cladding | |
| CN201310707Y (en) | Pipeline expansion bend | |
| CN104110554A (en) | Negative-pressure-resistant and anti-corrosion corrugated pipe compensator | |
| CN101749507A (en) | Pipeline expansion joint | |
| CN207609908U (en) | A kind of metal compensator for gas piping | |
| JP6133641B2 (en) | Insulation universal joint | |
| RU185102U1 (en) | BELLOW COMPENSATOR WITH TELESCOPIC CASING | |
| CN201606590U (en) | Wear resistant metal composite hose | |
| CN204677919U (en) | A kind of combustion gas corrugated flexible hose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |