CN102434749A - Graphite tube expansion joint - Google Patents
Graphite tube expansion joint Download PDFInfo
- Publication number
- CN102434749A CN102434749A CN2010102965504A CN201010296550A CN102434749A CN 102434749 A CN102434749 A CN 102434749A CN 2010102965504 A CN2010102965504 A CN 2010102965504A CN 201010296550 A CN201010296550 A CN 201010296550A CN 102434749 A CN102434749 A CN 102434749A
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- CN
- China
- Prior art keywords
- graphite
- expansion joint
- pipe
- pipes
- expansion
- 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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Abstract
The invention discloses a graphite tube expansion joint which comprises graphite pipes, wherein a graphite expansion joint is arranged between every two adjacent graphite pipes, expansion joint flanges are arranged on the graphite pipes, the expansion joint flanges are used for connecting the graphite pipes with the graphite expansion joints, and an O-shaped ring is arranged between the expansion joint flanges and the graphite expansion joints. Because the graphite pipes have no flexibility and have a certain linear expansion coefficient, by using a connecting manner of the graphite pipe expansion joint, errors of equipment on the aspect of height in an installation process can be eliminated, and stress, caused by the temperature and the like, of the graphite pipes in the use process are counteracted; and when the graphite pipes generate linear expansion due to factors such as pressure, temperature and the like, the graphite pipes can be freely flexible in the expansion joints.
Description
Technical field
The present invention relates to the graphite equipment in the chemical field, be specifically related to a kind of graphite-pipe 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, 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.
Graphite-pipe has self unique advantages; Corrosion-resistant, high temperature resistant, withstand voltage; Can be used for high corrosion industry, but graphite-pipe uses in the project installation process seldom, can not plastic deformation mainly due to graphite-pipe; If a small amount of error is arranged in the equipment installation process, then graphite-pipe can not be realized connecting through being out of shape.And graphite can produce linear expansion coeffcient under worst hot case, causes easily breaking.
Summary of the invention
Goal of the invention: the present invention provides a kind of graphite-pipe expansion joint of retractable in order to solve the deficiency of existing technology.
Technological scheme: a kind of graphite-pipe expansion joint; Comprise graphite-pipe; The graphite expansion joint is housed between adjacent two said graphite-pipes, and graphite-pipe is provided with the expansion joint flange, and described expansion joint flange links to each other graphite-pipe with the graphite expansion joint; Be provided with O type circle between described expansion joint flange and the graphite expansion joint, said expansion joint flange is provided with pull bar.
The expansion joint flange becomes the fixed form of original connection into activity form, becomes discontinuous pipeline configuration form by homogeneous tube.Expansion joint be connected with the space is arranged between the graphite-pipe, realize the sealing between expansion joint and the graphite-pipe through flange screw O type circle.
When equipment install to produce error, all can regulate through expansion joint as highly inconsistent etc. in graphite-pipe too short, long (excision does not need again bonding during installation), the equipment installation process.
Because graphite-pipe do not have flexibility and has certain linear expansion coeffcient, utilize the Connecting format of graphite-pipe expansion joint can abatement apparatus error aspect the height in installation process, offsetting simultaneously is that graphite-pipe is in use because the stress that temperature etc. cause.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: because factors such as pressure, temperature are when producing linear expansion, graphite-pipe can freely stretch in expansion joint when graphite-pipe.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a vertical section structure schematic representation of the present invention.
Embodiment
Like Fig. 1, shown in Figure 2; A kind of graphite-pipe expansion joint comprises graphite-pipe 1, and graphite expansion joint 2 is housed between adjacent two said graphite-pipes 1; Graphite-pipe 1 is provided with expansion joint flange 3; Described expansion joint flange 3 links to each other graphite-pipe 1 with graphite expansion joint 2, be provided with O type circle 4 between described expansion joint flange and the graphite expansion joint, and said expansion joint flange 3 is provided with pull bar 5.
Claims (1)
1. graphite-pipe expansion joint; Comprise graphite-pipe (1); It is characterized in that: graphite expansion joint (2) is housed between adjacent two said graphite-pipes (1), and graphite-pipe (1) is provided with expansion joint flange (3), and described expansion joint flange (3) links to each other graphite-pipe (1) with graphite expansion joint (2); Be provided with O type circle (4) between described expansion joint flange (3) and the graphite expansion joint, said expansion joint flange (3) is provided with pull bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102965504A CN102434749A (en) | 2010-09-29 | 2010-09-29 | Graphite tube expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102965504A CN102434749A (en) | 2010-09-29 | 2010-09-29 | Graphite tube expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434749A true CN102434749A (en) | 2012-05-02 |
Family
ID=45982984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102965504A Pending CN102434749A (en) | 2010-09-29 | 2010-09-29 | Graphite tube expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728547A (en) * | 2015-04-15 | 2015-06-24 | 南通晨光石墨设备有限公司 | Graphite connecting pipe with telescopic compensation |
-
2010
- 2010-09-29 CN CN2010102965504A patent/CN102434749A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728547A (en) * | 2015-04-15 | 2015-06-24 | 南通晨光石墨设备有限公司 | Graphite connecting pipe with telescopic compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Nantong Wulian Brand Planning Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Xing Yuehong Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |