CN103016883B - The liner PTFE dried shrimp elbow of anti-negative pressure - Google Patents
The liner PTFE dried shrimp elbow of anti-negative pressure Download PDFInfo
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- CN103016883B CN103016883B CN201210537321.6A CN201210537321A CN103016883B CN 103016883 B CN103016883 B CN 103016883B CN 201210537321 A CN201210537321 A CN 201210537321A CN 103016883 B CN103016883 B CN 103016883B
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- dried shrimp
- negative pressure
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- backing layer
- joint
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Abstract
The invention discloses a kind of liner PTFE dried shrimp elbow of anti-negative pressure, comprise steel dried shrimp joint (1), tetrafluoro backing layer (2), it is characterized in that: steel dried shrimp joint (1) is cross section is trapezoidal pipe, the two ends mouth of pipe is provided with flange (3), tetrafluoro backing layer (2) is lining in steel dried shrimp joint (1) inner tube wall, and at least two steel dried shrimp joint (1) being lined with tetrafluoro backing layer (2) connect into elbow.Negative pressure circle (4) is fixed in the middle of tetrafluoro backing layer (2) internal surface.Tetrafluoro backing layer (2) two ends are provided with the flange matched with flange (3), and steel dried shrimp joint (1) two ends have exhaust hole.User cost of the present invention is low, structure simple, anti-negative pressure, high temperature resistant, long service life.
Description
Technical field
The invention belongs to pipe fitting technical field, specifically relate to the elbow of anti-negative pressure, high temperature resistant, corrosion resistant.
Background technique
At present, the pipeline that the process conditions such as the elbow of liner PTFE, is used for temperature high, and corrosive medium is strong are harsher connects.Its processing method is after steel elbow processes, and carries out mold pressing liner PTFE, then carries out external coating corrosion resistant coating.In use because temperature is high, negative pressure is large and corrosive medium is strong, and cementability is poor between steel elbow and liner PTFE, accompany air between the two, meet high-temperature gas expansion and cause the easy bubbling of tetrafluoro backing layer, break, it is one of tetrafluoro backing layer reason of easily tearing, tetrafluoro backing layer is torn and material can be made to contact with steel part thus corrode steel part, causes material to leak outside, and PTFE lining elbow cannot be used.Thus the elbow of existing liner PTFE is low for working life, and maintenance expenses is high, and maintain and replace is frequent, causes equipment driving rate low, brings huge economic loss to enterprise.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and a kind of user cost of providing is low, structure is simple, the liner PTFE dried shrimp elbow of the anti-negative pressure of anti-negative pressure, high temperature resistant, long service life.
The liner PTFE dried shrimp elbow of a kind of anti-negative pressure of the present invention, comprise steel dried shrimp joint, tetrafluoro backing layer, wherein: steel dried shrimp joint is cross section is trapezoidal pipe, the two ends mouth of pipe is provided with flange, tetrafluoro backing layer is lining in steel dried shrimp pipe joint inwall, and at least two steel dried shrimp joints being lined with tetrafluoro backing layer connect into elbow.
The liner PTFE dried shrimp elbow of above-mentioned anti-negative pressure, is characterized in that: negative pressure circle is fixed in the middle of tetrafluoro backing layer internal surface.
The liner PTFE dried shrimp elbow of above-mentioned anti-negative pressure, is characterized in that: negative pressure circle is that outer surface fluorine material bushing being placed on round steel is made.
The liner PTFE dried shrimp elbow of above-mentioned anti-negative pressure, is characterized in that: in steel dried shrimp joint steel pipe joint, middle part is welded with a ring cross-section is saddle-shaped back-up ring, and negative pressure circle is close on tetrafluoro backing layer corresponding to back-up ring shape of a saddle groove.
The liner PTFE dried shrimp elbow of above-mentioned anti-negative pressure, is characterized in that: tetrafluoro backing layer two ends are provided with the flange matched with flange,
The liner PTFE dried shrimp elbow of above-mentioned anti-negative pressure, is characterized in that: steel dried shrimp joint steel pipe joint has exhaust hole.
The present invention compared with prior art, there is following obvious advantage and beneficial effect, as can be known from the above technical solutions: the steel dried shrimp joint being lined with tetrafluoro backing layer by least two connects into elbow, and the setting of flange is easy to partial disassembly's replacing, thus has greatly saved cost.Tetrafluoro backing layer two ends are provided with the flange matched with flange, are conducive to closing; Outer surface fluorine material bushing being placed on round steel makes negative pressure circle, it is made to be close on the tetrafluoro backing layer that in steel dried shrimp joint steel pipe joint, middle part welding back-up ring shape of a saddle groove is corresponding, make negative pressure circle fix and can not slide, thus efficiently solve tetrafluoro lining elbow easily bubbling, aliquation and tear under the synergy of high temperature and negative pressure; Steel pipe joint has exhaust hole, and the high temperature utilizing equipment to be in operation makes the air expansion between backing layer and steel part discharge, thus available protecting tetrafluoro baking layer material; Therefore the present invention not easily bubbling, not easily drawing crack damage, can available protecting tetrafluoro backing layer, improves the working life of tetrafluoro backing layer, simplify manufacturing procedure, and user cost is low, structure simple, anti-negative pressure, high temperature resistant.
Below by way of embodiment, further illustrate beneficial effect of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of negative pressure circle.
Mark in figure:
1, steel dried shrimp joint; 2, tetrafluoro backing layer; 3, flange; 4, negative pressure circle; 5, fluorine material bushing; 6, round steel; 7, back-up ring.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to the liner PTFE dried shrimp elbow embodiment of anti-negative pressure proposed according to the present invention, feature and effect thereof, be described in detail as follows.
See Fig. 1-2, a kind of liner PTFE dried shrimp elbow of anti-negative pressure, comprise steel dried shrimp joint 1, tetrafluoro backing layer 2, wherein: steel dried shrimp joint 1 is cross section is trapezoidal pipe, the two ends mouth of pipe is provided with flange 3, tetrafluoro backing layer 2 is lining in steel dried shrimp and saves 1 inner tube wall, and at least two steel dried shrimp joints 1 being lined with tetrafluoro backing layer 2 connect into elbow.Negative pressure circle 4 is fixed in the middle of tetrafluoro backing layer 2 internal surface.Negative pressure circle 4 is that outer surface fluorine material bushing 5 being placed on round steel 6 is made, and steel dried shrimp saves and is welded with a ring cross-section in the middle part of in 1 steel pipe joint is saddle-shaped back-up ring 7, and negative pressure circle is close to tetrafluoro backing layer corresponding to back-up ring 7 shape of a saddle groove.Tetrafluoro backing layer 2 two ends are provided with the flange matched with flange 3, and steel dried shrimp saves on 1 steel pipe joint and has exhaust hole.
Can as required during use, the steel dried shrimp joint 1 adopting two or more to be lined with tetrafluoro backing layer 2 is combined by link adpting flange.
Of the present inventionly be not limited to the embodiment described in embodiment, those skilled in the art's technological scheme according to the present invention draws and other mode of execution belongs to technological innovation scope of the present invention equally.Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. the liner PTFE dried shrimp elbow of an anti-negative pressure, comprise steel dried shrimp joint (1), tetrafluoro backing layer (2), it is characterized in that: steel dried shrimp joint (1) is cross section is trapezoidal pipe, the two ends mouth of pipe is provided with flange (3), tetrafluoro backing layer (2) is lining in steel dried shrimp joint (1) inner tube wall, and at least two steel dried shrimp joint (1) being lined with tetrafluoro backing layer (2) connect into elbow; Negative pressure circle (4) is fixed in the middle of tetrafluoro backing layer (2) internal surface; Negative pressure circle (4) is that outer surface fluorine material bushing (5) being placed on round steel (6) is made.
2. the liner PTFE dried shrimp elbow of anti-negative pressure as claimed in claim 1, it is characterized in that: in steel dried shrimp joint (1) steel pipe joint, middle part is welded with a ring cross-section is saddle-shaped back-up ring (7), and negative pressure circle is close to tetrafluoro backing layer corresponding to back-up ring (7) shape of a saddle groove.
3. the liner PTFE dried shrimp elbow of anti-negative pressure as claimed in claim 2, is characterized in that: tetrafluoro backing layer (2) two ends are provided with the flange matched with flange (3).
4. the liner PTFE dried shrimp elbow of anti-negative pressure as claimed in claim 3, is characterized in that: steel dried shrimp joint (1) steel pipe joint has exhaust hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537321.6A CN103016883B (en) | 2012-12-13 | 2012-12-13 | The liner PTFE dried shrimp elbow of anti-negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537321.6A CN103016883B (en) | 2012-12-13 | 2012-12-13 | The liner PTFE dried shrimp elbow of anti-negative pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016883A CN103016883A (en) | 2013-04-03 |
| CN103016883B true CN103016883B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210537321.6A Active CN103016883B (en) | 2012-12-13 | 2012-12-13 | The liner PTFE dried shrimp elbow of anti-negative pressure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081469U (en) * | 1990-12-31 | 1991-07-24 | 温州市氟塑设备制造厂 | Fluon-rubber compound compensator |
| CN2274705Y (en) * | 1996-09-18 | 1998-02-18 | 温州市防腐设备厂 | Metal corrugated expension joint |
| KR20110040049A (en) * | 2009-10-13 | 2011-04-20 | (주)일신정밀기계 | Piping connector and its connection method |
| CN102588702A (en) * | 2012-03-14 | 2012-07-18 | 江苏三汇联发管业有限公司 | Corrosion-resistant alloy lined composite mitre elbow and manufacturing method thereof |
| CN203258267U (en) * | 2012-12-13 | 2013-10-30 | 贵州瓮福蓝天氟化工股份有限公司 | Negative pressure preventing creased pipe with lining made of Teflon material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3610561B2 (en) * | 1995-06-29 | 2005-01-12 | 石川島播磨重工業株式会社 | High temperature piping lining structure |
-
2012
- 2012-12-13 CN CN201210537321.6A patent/CN103016883B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081469U (en) * | 1990-12-31 | 1991-07-24 | 温州市氟塑设备制造厂 | Fluon-rubber compound compensator |
| CN2274705Y (en) * | 1996-09-18 | 1998-02-18 | 温州市防腐设备厂 | Metal corrugated expension joint |
| KR20110040049A (en) * | 2009-10-13 | 2011-04-20 | (주)일신정밀기계 | Piping connector and its connection method |
| CN102588702A (en) * | 2012-03-14 | 2012-07-18 | 江苏三汇联发管业有限公司 | Corrosion-resistant alloy lined composite mitre elbow and manufacturing method thereof |
| CN203258267U (en) * | 2012-12-13 | 2013-10-30 | 贵州瓮福蓝天氟化工股份有限公司 | Negative pressure preventing creased pipe with lining made of Teflon material |
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| Publication number | Publication date |
|---|---|
| CN103016883A (en) | 2013-04-03 |
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