CN202158301U - Metal tube expansion joint - Google Patents
Metal tube expansion joint Download PDFInfo
- Publication number
- CN202158301U CN202158301U CN2011202509855U CN201120250985U CN202158301U CN 202158301 U CN202158301 U CN 202158301U CN 2011202509855 U CN2011202509855 U CN 2011202509855U CN 201120250985 U CN201120250985 U CN 201120250985U CN 202158301 U CN202158301 U CN 202158301U
- Authority
- CN
- China
- Prior art keywords
- metal
- metal tube
- expansion
- tube
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a metal tube expansion joint, which comprises a metal expansion tube and two flanges installed at two ends of the metal expansion tube. The metal expansion tube comprises two metal connecting pipes which are connected together through threads. The metal tube expansion joint enables a metal tube which is fixed in length and not flexible to be adjustable in length within the movable range of the expansion joint and widens the application range of the metal tube.
Description
Technical field
The utility model relates to chemical field, relates in particular to a kind of metal tube expansion joint.
Background technique
Present stage is mainly used plastics class pipeline in the corrosion industry, as: polyethylene pipe, PA tube, polyfluortetraethylene pipe.The polyethylene pipe serviceability temperature is low and be prone in air agingly, and PA tube is beginning to soften more than 70 ℃, and tetrafluoroethylene decay resistance and heat resistance are all higher, more than three kinds of plastics withstand voltage propertiess relatively poor, easy deformation and breakage under pressure and vacuum condition.
The metal inner lining plastic pipe has improved working pressure to a certain extent, but does not improve anti-corrosion capacity and serviceability temperature, and under vacuum condition, this type pipeline and directly do not have difference with plastics.The metal inner lining coating pipeline has improved the withstand voltage of pipeline and vacuum-resistant ability, but because the metal meeting produces distortion because of pressure, vacuum, temperature etc., causes coating to produce the space and perhaps peel off.
Metallic conduit has self unique advantages; Corrosion-resistant, high temperature resistant, withstand voltage; Can be used for high corrosion industry, but metal tube uses in the project installation process seldom, can not plastic deformation mainly due to metal tube; If a small amount of error is arranged in the equipment installation process, then metal tube can not be realized connecting through being out of shape.And metal tube can produce expansion coefficient under worst hot case, causes easily breaking.
The model utility content
Goal of the invention: in order to overcome the deficiency that exists in the existing technology, the utility model provides a kind of metal tube expansion joint of retractable.
Technological scheme: for solving the problems of the technologies described above, the technological scheme of the utility model sampling is:
A kind of metal tube expansion joint comprises metal expansion pipe, is installed in two flanges at metal expansion pipe two ends, and said metal expansion pipe comprises two metal adapters through being threaded together.
During use; Between two adjacent metal pipes, install the expansion of metal joint, regulate the screw position that two metals are taken over, be fixedly connected through expansion of metal joint upper flange; Be preferably in cushioning seal ring between flange and the metal tube, the joint that two metals of last enhanced leaktightness are taken over.
This expansion of metal joint becomes the fixed form of original connection into activity form, becomes discontinuous pipeline configuration form by homogeneous tube, and realizes the sealing between itself and the metal tube through seal ring.When equipment install to produce error, all can adjust through the metal tube expansion joint as highly inconsistent etc. in metal tube too short, long (excision does not need to cohere again during installation), the equipment installation process.Because metal tube do not have flexibility and has certain expansion coefficient, utilize the Connecting format between the metal tube roc can abatement apparatus error aspect the height in installation process, offset metal tube simultaneously in use because the stress that temperature etc. cause.
Beneficial effect: the metal expansion pipe that the utility model provides, length is fixed and do not possess flexible metal tube and can in the expansion joint the sphere of activities, adjust length, increased the using scope of metal tube.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
Be depicted as a kind of metal tube expansion joint like accompanying drawing 1, comprise metal expansion pipe 2, its internal diameter equates with the external diameter of metal tube 1, is installed in two flanges 3 at metal expansion pipe 2 two ends, and said metal expansion pipe 2 comprises two metal adapters through being threaded together; This expansion of metal joint is connected with metal tube 1 through flange 3, and in the joint pad 4 is installed.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (1)
1. metal tube expansion joint; It is characterized in that: this metal tube expansion joint comprises metal expansion pipe (2); Be installed in two flanges (3) at metal expansion pipe (2) two ends, said metal expansion pipe (2) comprises two metal adapters through being threaded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202509855U CN202158301U (en) | 2011-07-16 | 2011-07-16 | Metal tube expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202509855U CN202158301U (en) | 2011-07-16 | 2011-07-16 | Metal tube expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158301U true CN202158301U (en) | 2012-03-07 |
Family
ID=45765941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202509855U Expired - Fee Related CN202158301U (en) | 2011-07-16 | 2011-07-16 | Metal tube expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158301U (en) |
-
2011
- 2011-07-16 CN CN2011202509855U patent/CN202158301U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101338845A (en) | Rotating compensator for corrosion resistant pipeline and preparation method and compensating system | |
| CN206943631U (en) | A kind of vacuum sealing tube telescopic with adaptive guard function | |
| CN204852709U (en) | Impact modification polyvinyl chloride pipe system is used in telescopic feedwater | |
| CN201246572Y (en) | Rotating compensator and compensating system for corrosion resistant pipeline | |
| CN203309437U (en) | Novel polytetrafluoroethylene expansion joint | |
| CN201190854Y (en) | Plastic-aluminum pipe connection | |
| CN202158301U (en) | Metal tube expansion joint | |
| CN103292094A (en) | Diameter variable glass fiber pipeline | |
| CN102878379A (en) | Metal pipe expansion joint | |
| CN204986084U (en) | Corrugated metal pipe | |
| CN208295379U (en) | A kind of anti-acid corrugated expansion joint | |
| CN204647676U (en) | Rubber asphalt double-layered delivery pipe joint | |
| CN203363495U (en) | Quick connector allowing pipe body to turn freely | |
| CN206770825U (en) | Quick-mountable pipe jointer | |
| CN202501142U (en) | Coal gas pipeline connection system | |
| CN207113609U (en) | A kind of more enamel-covered wires pass through the sealing structure of hyperbar electric furnace cover | |
| CN205877556U (en) | Right -angle elbow pipe | |
| CN206754616U (en) | A kind of CPVC pipelines | |
| CN102434749A (en) | Graphite tube expansion joint | |
| CN202082549U (en) | Novel graphite pipe expansion joint | |
| CN204459543U (en) | One-piece type insulating joint | |
| CN204476342U (en) | A kind of shaft collar of gas storage well | |
| CN201787260U (en) | Expansion joint of graphite tube | |
| CN102809017A (en) | Novel graphite tube expansion joint | |
| CN203421401U (en) | Externally-locked type quick metal connector for plastic pipelines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120307 Termination date: 20120716 |