CN2872049Y - Welding pipe with opening-repairing function and teflon lining - Google Patents
Welding pipe with opening-repairing function and teflon lining Download PDFInfo
- Publication number
- CN2872049Y CN2872049Y CN 200620020601 CN200620020601U CN2872049Y CN 2872049 Y CN2872049 Y CN 2872049Y CN 200620020601 CN200620020601 CN 200620020601 CN 200620020601 U CN200620020601 U CN 200620020601U CN 2872049 Y CN2872049 Y CN 2872049Y
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- CN
- China
- Prior art keywords
- pipe
- teflon
- pipe fitting
- thermal protection
- protection shield
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- 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.)
- Expired - Fee Related
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a pipe or pipe fitting with Teflon liners used for welding seam, belonging to the pipe and pipe fittings with Teflon liners. The utility model is aiming to solve the problem that the corrosion resistance of the current epoxy powder coating or protection coating is poor; moreover, the firmness and the endurance of the connection between pipe and pipe fitting are poor. During the welding of steel pipeline, the corrosion-resistant coating at the joint between two pipelines will peel off due to the change of thermal stress so as to damage the corrosion resistance performance. The Teflon liner (2) is arranged on the inner wall of the pipe or pipe fitting (1) in the utility model, the thickness of the Teflon liner (2) is 1-10mmm, the seam joint (3) in the Teflon liner is arranged in the end of the pipe or pipe fitting (1). The utility model has the following advantages of firm bond between Teflon liner and steel pipe wall, outstanding pressure and temperature resistance performance, small friction coefficient in the inner wall of pipe, no substance adhesion, being uneasy to form scale, corrosion resistance and large temperature-resistant range.
Description
Technical field
The utility model relates to a kind of pipe, pipe fitting that has teflon lined.
Background technique
Have now and be used to carry the pipe of liquid medium and pipe fitting mostly to be cast iron (steel) material, because the liquid medium of carrying includes sewage, crude oil, contains the compound of acid or alkali, industrial chemicals etc., these liquid mediums all have certain corrosivity and cause pipe and pipe fitting inner wall fouling easily pipe and pipe fitting, have a strong impact on the usability and the working life of pipe and pipe fitting.For usability and the using effect that makes pipe and pipe fitting is improved, prolong working life, it is anticorrosion in people begin to take epoxy powder spraying or coating to spray to finish, but these materials and spraying coating process often do not reach the anticorrosion or antiscaling effect of expection, and pipeline corrosion, fouling scene are still very serious.In addition, this steel pipe that has powder or paint coatings is in welding process, and the corrosion-inhibiting coating at two pipe joint places is because the variation of thermal stress, can make the surface anticorrosion coating shedding, thereby destroyed its antiseptic property, caused the pipe joint place easily to be corroded, seepage has taken place.
The model utility content
The purpose of this utility model is for a little less than solving existing epoxy powder spraying or coating protecting coating corrosion resistance, relatively poor with soundness that combines between pipe and the pipe fitting and durability, steel pipe is in welding process, the corrosion-inhibiting coating at two pipe joint places is because the thermal stress variation, can make the surface anticorrosion coating shedding, thereby destroyed its antiseptic property, cause the pipe joint place easily to be corroded, the pipeline leakage problems takes place, and a kind of pipe that has teflon lined, pipe fitting of being used to weld that the repaired mouth function is arranged is provided.The utility model promptly has superior corrosion resistance, temperature tolerance has favorable rigidity, impact resistance, anti-vibration and distortion, drag reduction wear-resisting again, the characteristics of two pipe joint place favorable anti-corrosion effect.The utility model is made up of pipe and pipe fitting 1, teflon lined 2 and teflon internal mending orifice joint 3, be fixed with teflon lined 2 on the inwall of pipe and pipe fitting 1, the thickness a of teflon lined 2 is 1～10mm, and teflon internal mending orifice joint 3 is fixed in the port of pipe and pipe fitting 1.Pipe fitting 1 described in the utility model is threeway, elbow, reducer pipe fitting.The beneficial effects of the utility model are: teflon lined combines with steel pipe walls firmly, shock-resistant, withstand voltage properties is given prominence to, the inner tube wall friction ractor is little, do not adhere to other any medium, less scaling, corrosion-resistant the corrosion of acid, alkali, salt, oxygenant, organic solvent and other all deep-etchings chemistry matter matter of any concentration (almost can the anti-any kind of), temperature resistant range be bigger.Be applicable to petroleum pipeline, water delivery and waterflood-transmission line that petroleum industry is used; The transfer line of the soy sauce of food brewing industry, vinegar and raw material thereof; Chemical industry is used to carry the pipeline that has liquid such as severe corrosive, strong acid, highly basic.That the teflon internal mending orifice joint has is simple in structure, easy for installation, combine the advantage of firm, corrosion-resistant, withstand voltage and good seal performance with metallic conduit.
Description of drawings
Fig. 1 is that the utility model pipe fitting 1 is the structural representation of threeway, Fig. 2 is that the utility model pipe fitting 1 is the structural representation of elbow, Fig. 3 is the structural representation of the utility model pipe 1, and Fig. 4 is an A place enlarged view among Fig. 1, and Fig. 5 is the structural representation of teflon internal mending orifice joint 3.
Embodiment
Embodiment one: (referring to Fig. 1～Fig. 4) present embodiment is made up of pipe and pipe fitting 1, teflon lined 2 and teflon internal mending orifice joint 3, be fixed with teflon lined 2 on the inwall of pipe and pipe fitting 1, the thickness a of teflon lined 2 is 1-10mm, and teflon internal mending orifice joint 3 is fixed in the port of pipe and pipe fitting 1.
Embodiment two: (referring to Fig. 1～Fig. 4) the thickness a of present embodiment teflon lined 2 is 1-5mm.Other composition is identical with embodiment one with annexation.
Embodiment three: (referring to Fig. 1～Fig. 4) the thickness a of present embodiment teflon lined 2 is 6-10mm.Other composition is identical with embodiment one with annexation.
Embodiment four: the teflon internal mending orifice joint 3 of (referring to Fig. 5) present embodiment is by teflon body 11, first thermal protection shield 12, second thermal protection shield 14 and seal ring 15 are formed, the centre of teflon body 11 outer surfaces has groove 18, have o-ring groove 17 on the outer surface of the teflon body 11 of groove 18 both sides, seal ring 15 is arranged in the o-ring groove 17 of teflon body 11, first thermal protection shield 12 is arranged in the groove 18 of teflon body 11, second thermal protection shield 14 is arranged on the outer surface of first thermal protection shield 12, scribbles epoxy structural rubber or layer of silica gel 19 on the outer surface of teflon body 11.The material of described first thermal protection shield 12 is asbestic blanket or asbestos slate; The material of described second thermal protection shield 14 is a steel plate; The material of described seal ring 15 is a fluorine rubber.Under the high temperature when pipe joint welds; the teflon body of first thermal protection shield and second thermal protection shield protection weld joint is not melted; and do not have the outer surface of the teflon body of thermal protection shield protection to scribble epoxy structural rubber or silica gel; epoxy structural rubber or silica gel chance high temperature solidifies rapidly in welding process; with teflon body and firm the bonding together of inner wall of metal tube; and play the effect of sealing, thereby make the teflon body reach the final purpose of repaired mouth.
Embodiment five: the difference of (referring to Fig. 5) present embodiment and embodiment four is, has increased intermediate heat protective coating 13 between first thermal protection shield 12 and second thermal protection shield 14.The material of intermediate heat protective coating 13 is an asbestos rope.Intermediate heat protective coating 13 distributes for spaced radial between first thermal protection shield 12 and second thermal protection shield 14.Other composition is identical with embodiment four with annexation.Described intermediate heat protective coating 13 for spaced radial distributes, makes between first thermal protection shield 12 and second thermal protection shield 14 and leaves the space between first thermal protection shield 12 and second thermal protection shield 14, and high temperature is to the influence of teflon body when alleviating welding.
Embodiment six: the difference of (referring to Fig. 5) present embodiment and embodiment four is, is fixed with locating stud 16 on the outer surface of described second thermal protection shield 14.Described locating stud 16 is made for steel material.Can guarantee that like this teflon body 11 axial middles are positioned the jointing of two pipelines just before welding, avoid occurring slipping and the effect that do not reach preserving and sealing.Other composition is identical with embodiment four with annexation.
Embodiment seven: the difference of (referring to Fig. 5) present embodiment and embodiment four is, is equipped with groove 20 on the madial wall at teflon body 11 two ends.When such divided edge structure helps in the pipeline flow of fluid, reduce the resistance of fluid.Other composition is identical with embodiment four with annexation.The tube wall of present embodiment teflon body is very thin, and both sides are equipped with groove again, so can not influence the flow of pipeline.
Claims (8)
1, a kind of pipe that has teflon lined, pipe fitting of being used to weld that the repaired mouth function is arranged, it is characterized in that it by the pipe and pipe fitting (1), teflon lined (2) and teflon internal mending orifice joint (3) form, be fixed with teflon lined (2) on the inwall of pipe and pipe fitting (1), the thickness a of teflon lined (2) is 1～10mm, and teflon internal mending orifice joint (3) is fixed in the port of pipe and pipe fitting (1).
2, the pipe that has teflon lined, the pipe fitting that are used to weld that the repaired mouth function is arranged according to claim 1, the thickness a that it is characterized in that teflon lined (2) is 1-5mm.
3, the pipe that has teflon lined, the pipe fitting that are used to weld that the repaired mouth function is arranged according to claim 1, the thickness a that it is characterized in that teflon lined (2) is 6-10mm.
4, the pipe that has teflon lined that is used to weld that the repaired mouth function is arranged according to claim 1, pipe fitting, it is characterized in that teflon internal mending orifice joint (3) is by teflon body (11), first thermal protection shield (12), second thermal protection shield (14) and seal ring (15) are formed, the centre of teflon body (11) outer surface has groove (18), have o-ring groove (17) on the outer surface of the teflon body (11) of groove (18) both sides, seal ring (15) is arranged in the o-ring groove (17) of teflon body (11), first thermal protection shield (12) is arranged in the groove (18) of teflon body (11), second thermal protection shield (14) is arranged on the outer surface of first thermal protection shield (12), scribbles epoxy structural rubber or layer of silica gel (19) on the outer surface of teflon body (11).
5, the pipe that has teflon lined, the pipe fitting that are used to weld that the repaired mouth function is arranged according to claim 4 is characterized in that having increased intermediate heat protective coating (13) between first thermal protection shield (12) and second thermal protection shield (14).
6, the pipe that has teflon lined, the pipe fitting that are used to weld that the repaired mouth function is arranged according to claim 5 is characterized in that intermediate heat protective coating (13) distributes for spaced radial between first thermal protection shield (12) and second thermal protection shield (14).
7, according to claim 4, the 5 or 6 described pipe that has teflon lined, the pipe fittings that are used to weld that the repaired mouth function is arranged, it is characterized in that on the outer surface of described second thermal protection shield (14), being fixed with locating stud (16).
8, the pipe that has teflon lined, the pipe fitting that are used to weld that the repaired mouth function is arranged according to claim 4 is characterized in that being equipped with groove (20) on the madial wall at teflon body (11) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620020601 CN2872049Y (en) | 2006-04-17 | 2006-04-17 | Welding pipe with opening-repairing function and teflon lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620020601 CN2872049Y (en) | 2006-04-17 | 2006-04-17 | Welding pipe with opening-repairing function and teflon lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872049Y true CN2872049Y (en) | 2007-02-21 |
Family
ID=37740396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620020601 Expired - Fee Related CN2872049Y (en) | 2006-04-17 | 2006-04-17 | Welding pipe with opening-repairing function and teflon lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872049Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322364A (en) * | 2013-07-15 | 2013-09-25 | 李晓明 | Connecting device and connecting method of internal and external anti-corrosion plastic-steel composite pipe |
-
2006
- 2006-04-17 CN CN 200620020601 patent/CN2872049Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322364A (en) * | 2013-07-15 | 2013-09-25 | 李晓明 | Connecting device and connecting method of internal and external anti-corrosion plastic-steel composite pipe |
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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: 20070221 Termination date: 20150417 |
|
| EXPY | Termination of patent right or utility model |