CN201787260U - Expansion joint of graphite tube - Google Patents
Expansion joint of graphite tube Download PDFInfo
- Publication number
- CN201787260U CN201787260U CN2010205474815U CN201020547481U CN201787260U CN 201787260 U CN201787260 U CN 201787260U CN 2010205474815 U CN2010205474815 U CN 2010205474815U CN 201020547481 U CN201020547481 U CN 201020547481U CN 201787260 U CN201787260 U CN 201787260U
- Authority
- CN
- China
- Prior art keywords
- graphite
- expansion joint
- graphite tube
- pipe
- 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.)
- Expired - Fee Related
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses an expansion joint for graphite tube comprising a graphite tube and a graphite expansion arranged between the adjacent two graphite tubes, wherein the graphite tube is provided with an expansion joint flange, the graphite tube and the graphite expansion joint being connected by the expansion joint flange, a O-shaped circle being arranged between the expansion joint flange and the graphite expansion joint. Since the graphite tube has no flexibility and has a certain linear expansion coefficient, the connection form of expansion joint for graphite tube can eliminate error in terms of height in installation, and meanwhile counteract stress caused by temperature as graphite tube is in use. As linear expansion occurs to the graphite tube due to pressure or temperature, etc., the graphite tube can perform free telescoping inside the expansion joint.
Description
Technical field
The utility model relates to the graphite equipment in the chemical field, is 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, polypropylene tube, polyfluortetraethylene pipe.The polyethylene pipe serviceability temperature is low and easily aging in air, and polypropylene 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 class 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 metal can be because pressure, vacuum, temperature etc. produce distortion, causes coating to produce the space or peels 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 by being out of shape.And graphite causes breaking can produce linear expansion coeffcient under worst hot case easily.
The model utility content
The model utility purpose: the utility model provides a kind of graphite-pipe expansion joint of retractable in order to solve the deficiencies in the prior art.
Technological scheme: a kind of graphite-pipe expansion joint, comprise graphite-pipe, the graphite expansion joint is housed between adjacent two described graphite-pipes, graphite-pipe is provided with the expansion joint flange, 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, described 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 sealing between expansion joint and the graphite-pipe by flange screw O type circle.
When equipment install to produce error, all can regulate by 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 utility model 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 the utility model structural representation.
Fig. 2 is a vertical section structure schematic representation of the present utility model.
Embodiment
As shown in Figure 1 and Figure 2, a kind of graphite-pipe expansion joint, comprise graphite-pipe 1, graphite expansion joint 2 is housed between adjacent two described 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 described 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 described 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 (3) and the graphite expansion joint, described expansion joint flange (3) is provided with pull bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205474815U CN201787260U (en) | 2010-09-29 | 2010-09-29 | Expansion joint of graphite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205474815U CN201787260U (en) | 2010-09-29 | 2010-09-29 | Expansion joint of graphite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787260U true CN201787260U (en) | 2011-04-06 |
Family
ID=43819223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205474815U Expired - Fee Related CN201787260U (en) | 2010-09-29 | 2010-09-29 | Expansion joint of graphite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787260U (en) |
-
2010
- 2010-09-29 CN CN2010205474815U patent/CN201787260U/en not_active Expired - Fee Related
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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: 20110406 Termination date: 20110929 |