CN1532443A - Fluid composite pipe - Google Patents
Fluid composite pipe Download PDFInfo
- Publication number
- CN1532443A CN1532443A CNA031192009A CN03119200A CN1532443A CN 1532443 A CN1532443 A CN 1532443A CN A031192009 A CNA031192009 A CN A031192009A CN 03119200 A CN03119200 A CN 03119200A CN 1532443 A CN1532443 A CN 1532443A
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- CN
- China
- Prior art keywords
- pipe
- metal
- metal pipe
- fluid composite
- protection
- 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.)
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- Rigid Pipes And Flexible Pipes (AREA)
- Joints Allowing Movement (AREA)
Abstract
The composite fluid pipe is used for conveying liquid and gas. The composite fluid pipe has a corrugated metal pipe and one protecting metal pipe around the corrugated metal pipe, and the two ends of the corrugated metal pipe are separately assembled to and fixed on the two ends of the protecting metal pipe hermetically via connecting pipes, with pipe unions being provided to two ends of the protecting metal pipe. Compared with corrugated metal pipe without protecting metal pipe, the composite fluid pipe has greatly prolonged service life and less maintenance time, is suitable especially for metallurgical, petrochemical and other industries.
Description
Technical field
The present invention relates to a kind of fluid composite pipe, be used for the conveying of liquids and gases.
Background technique
Make the delivery element of liquids and gases with metal bellows, engineering and daily giving birth in the words early to be extensive use of, it has Placement flexibly, but in some specific Environmental Conditions, on the equipment in metallurgical and the petrochemical enterprise, because the tube wall of common metal bellows is thinner, so be easy to be subjected to acid and alkali corrosion and rugged environment to influence, bellows is damaged easily, and working life is very low.Thereby cause production accident, influence is produced and economic benefit.
Summary of the invention
In order to overcome the defective of prior art, the invention provides a kind of fluid composite pipe of long service life.
Fluid composite pipe of the present invention, comprise metal bellows, wherein the metal bellows two ends are equipped with connecting tube one end respectively, and are sealedly connected and fixed, at wavy metal tube outside suit one protection metal pipe, the other end of connecting tube is connected and fixed with protection metal pipe is sealed at both ends respectively; The protection metal pipe two ends are provided with pipe joint.
Fluid composite pipe of the present invention is wherein opened an aperture on the middle tube wall of connecting tube at least, is communicated with gap between metal bellows and the protection metal pipe.
Fluid composite pipe of the present invention, wherein metal bellows is a corrugated stainless steel tubing, protection metal pipe is a Stainless Steel Tube.
Fluid composite pipe of the present invention, wherein connecting tube is passed with metal bar and the metal bellows two ends are fixed with the welding of metal coating inner tube wall in two ends in the protection metal pipe.
Fluid composite pipe of the present invention is compared with independent use metal bellows, just prolongs much with the life-span, has reduced the engineering time of equipment, in enterprises such as metallurgical and petrochemical industry, has reduced cost of production, has certain economic benefits.
Description of drawings
Fig. 1 is a structural profile schematic representation of the present invention.
Embodiment
As seen from Figure 1, fluid composite pipe of the present invention comprises stainless steel metal bellows 1, protection metal pipe 2, metal connecting tube 3 and metallic pipe coupling 5.Corrugated stainless steel tubing 1 two ends are fixed with metal connecting tube 3 one end seal weldings respectively, and at corrugated stainless steel tubing 1 outside set metal protective tube 2, the not saturating corrugated steel pipe 1 of protection is not subject to acid and alkali corrosion and rugged environment influence, damages bellows; The other end of metal connecting tube 3 is fixed with protection metal pipe 2 sealed at both ends welding respectively; Protection metal pipe 2 two ends are connected with flanged joint 5, are convenient to be connected with other parts.Have aperture 4 on the middle tube wall of metal connecting tube 3, it is communicated with gap between corrugated stainless steel tubing 1 and the protection metal pipe 2, can the balance tube internal pressure.
Corrugated stainless steel tubing 1 can be the bellows of other metallic material in the present embodiment.
Protection metal pipe 2 can be a straight tube, also can be bend pipe.
The metallic pipe coupling 5 at protection metal pipe 2 two ends can be multiple structural type, is applicable to different Placements.
The diameter and the length of fluid composite pipe of the present invention are not limit.
Claims (4)
1, a kind of fluid composite pipe comprises metal bellows, it is characterized in that described metal bellows (1) two ends are equipped with connecting tube (3) one ends respectively, and is sealedly connected and fixed; At metal bellows (1) outside set metal protective tube (2), the other end of connecting tube (3) respectively with sealed at both ends being connected and fixed of protection metal pipe (2); Protection metal pipe (2) two ends are provided with pipe joint (5).
2, fluid composite pipe according to claim 1 is characterized in that opening an aperture (4) at least on the middle tube wall of described connecting tube (3), and it is communicated with gap between metal bellows (1) and the protection metal pipe (2).
3, according to claim 1,2 described fluid composite pipes, it is characterized in that described metal bellows (1) is a corrugated stainless steel tubing, protection metal pipe (2) is a Stainless Steel Tube.
4, fluid composite pipe according to claim 3 is characterized in that the interior two ends of described protection metal pipe (2) are fixing with two ends and the welding of protection metal pipe (2) inwall that metal bar passes connecting tube (3) and metal bellows (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119200 CN1237300C (en) | 2003-03-18 | 2003-03-18 | Fluid composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119200 CN1237300C (en) | 2003-03-18 | 2003-03-18 | Fluid composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532443A true CN1532443A (en) | 2004-09-29 |
| CN1237300C CN1237300C (en) | 2006-01-18 |
Family
ID=34285011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03119200 Expired - Fee Related CN1237300C (en) | 2003-03-18 | 2003-03-18 | Fluid composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1237300C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100595469C (en) * | 2007-06-28 | 2010-03-24 | 日产自动车株式会社 | Tube having protection part |
| CN103672297A (en) * | 2013-12-18 | 2014-03-26 | 西南石油大学 | Non-excavation sunken pipe protecting device |
| CN111219549A (en) * | 2020-04-07 | 2020-06-02 | 王德明 | Special metal corrugated connecting pipe for fire fighting |
-
2003
- 2003-03-18 CN CN 03119200 patent/CN1237300C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100595469C (en) * | 2007-06-28 | 2010-03-24 | 日产自动车株式会社 | Tube having protection part |
| CN103672297A (en) * | 2013-12-18 | 2014-03-26 | 西南石油大学 | Non-excavation sunken pipe protecting device |
| CN103672297B (en) * | 2013-12-18 | 2015-12-09 | 西南石油大学 | A kind of non-excavating underground pipe line protective gear |
| CN111219549A (en) * | 2020-04-07 | 2020-06-02 | 王德明 | Special metal corrugated connecting pipe for fire fighting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1237300C (en) | 2006-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060118 Termination date: 20110318 |