CN102809017A - Novel graphite tube expansion joint - Google Patents
Novel graphite tube expansion joint Download PDFInfo
- Publication number
- CN102809017A CN102809017A CN 201110142127 CN201110142127A CN102809017A CN 102809017 A CN102809017 A CN 102809017A CN 201110142127 CN201110142127 CN 201110142127 CN 201110142127 A CN201110142127 A CN 201110142127A CN 102809017 A CN102809017 A CN 102809017A
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- China
- Prior art keywords
- graphite
- expansion joint
- pipe
- novel
- tubes
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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.)
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Abstract
The invention discloses a novel graphite tube expansion joint which comprises graphite tubes. A graphite expansion joint is installed between the two adjacent graphite tubes; expansion joint flanges are arranged on the graphite tubes, and the graphite tubes are connected with the expansion joint through the expansion joint flanges; O-shaped rings are arranged between the expansion joint flanges and the graphite expansion joint; and the O-shaped rings are graphite nylon washers. The novel graphite tube expansion joint has the benefits that when being linearly expanded due to pressure, temperature and other factors, the graphite tubes can freely extend and contract in the expansion joint; and as the graphite nylon washers are taken as the O-shaped rings, the expansion coefficient is small, and the sealing performance is better.
Description
Technical field
The present invention relates to the graphite equipment in the chemical field, be specifically related to a kind of novel graphite tube swelling 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 novel graphite tube swelling joint of retractable in order to solve the deficiency of existing technology.
Technological scheme: a kind of novel graphite tube swelling joint; Comprise graphite-pipe, the graphite expansion joint is housed between adjacent two said 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, said expansion joint flange is provided with pull bar, and described O type circle is the graphite nylon washer.
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, adopt the graphite nylon washer as O type circle, expansion coefficient is little, better tightness.
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 does not have flexibility and has certain linear expansion coeffcient; Utilize the Connecting format of novel graphite tube swelling joint can abatement apparatus error aspect the height in installation process, offsetting simultaneously be that graphite-pipe is in use because the stress that temperature etc. cause.
Beneficial effect: when the present invention produced linear expansion when graphite-pipe because of factors such as pressure, temperature, graphite-pipe can freely stretch in expansion joint, adopted the graphite nylon washer as O type circle, and expansion coefficient is little, better tightness.
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 novel graphite tube swelling joint comprises graphite-pipe 1; Graphite expansion joint 2 is housed between adjacent two said graphite-pipes 1; 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, is provided with O type circle 4 between described expansion joint flange and the graphite expansion joint; Said expansion joint flange 3 is provided with pull bar 5, and described O type circle 4 is the graphite nylon washer.
Claims (1)
1. a novel graphite tube swelling saves; Comprise graphite-pipe (1); Graphite expansion joint (2) is housed between adjacent two said graphite-pipes (1); 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), is 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), it is characterized in that: described O type circle (4) is the graphite nylon washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110142127 CN102809017A (en) | 2011-05-30 | 2011-05-30 | Novel graphite tube expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110142127 CN102809017A (en) | 2011-05-30 | 2011-05-30 | Novel graphite tube expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102809017A true CN102809017A (en) | 2012-12-05 |
Family
ID=47232817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110142127 Pending CN102809017A (en) | 2011-05-30 | 2011-05-30 | Novel graphite tube expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102809017A (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 |
-
2011
- 2011-05-30 CN CN 201110142127 patent/CN102809017A/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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |