CN107300074A - Flange gasket for Low Temperature Pipe in Ethylene Plant - Google Patents
Flange gasket for Low Temperature Pipe in Ethylene Plant Download PDFInfo
- Publication number
- CN107300074A CN107300074A CN201710720222.4A CN201710720222A CN107300074A CN 107300074 A CN107300074 A CN 107300074A CN 201710720222 A CN201710720222 A CN 201710720222A CN 107300074 A CN107300074 A CN 107300074A
- Authority
- CN
- China
- Prior art keywords
- circle
- flange gasket
- rock wool
- low temperature
- nanoporous aerogel
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of flange gasket for Low Temperature Pipe in Ethylene Plant, the flange gasket is circular sheet-like structures, include a nanoporous aerogel circle, a through hole is provided with nanoporous aerogel circle, the periphery of nanoporous aerogel circle is connected with a close pressure rock wool circle, the thickness of close pressure rock wool circle is less than the thickness of nanoporous aerogel circle, the upper and lower surface of close pressure rock wool circle is respectively provided with an aluminium packing ring and a stainless steel washer, a rubber sealant is respectively covered in the upper and lower surface of close pressure rock wool circle, the rubber layer of upper and lower surface is integrally formed.The nanoporous aerogel circle that the center of the flange gasket for Low Temperature Pipe in Ethylene Plant of the present invention is set has preferably isolation effect to the cryogen in pipeline, low temperature effect of the cryogen to pad is largely reducing, allows flange gasket that there is preferably elasticity and sealing.
Description
Technical field
The present invention relates to a kind of flange gasket, more precisely, being a kind of flange gasket for Low Temperature Pipe in Ethylene Plant.
Background technology
In current big-and-middle-sized ethylene unit, cryogenic separation is used the separation of the component such as hydrogen, methane in cracking gas more.
To meet this requirement, cryogenic piping is widely used in petrochemical enterprise, and typically less than+5 DEG C of material pipe is claimed
For cryogenic piping.Cryogenic piping design mainly considers two problems:First is " black brittleness ";Second be cold insulation structure design and
A series of design requirements produced by cold insulation demand.The arrangement of cryogenic piping will consider that whole pipeline has enough flexibilities,
Make full use of the natural compensation of pipeline, when design temperature is very low and can not natural compensation when, compensator should be set, expansion is provided
Ring, or use expansion joint.The connection of cryogenic piping inevitably uses flange, flange gasket, and due to by low temperature in pipeline
The influence of fluid, flange gasket is under low temperature environment for a long time easily to become fragile, sealing property reduction, or even the feelings of fluid leakage occurs
Condition.
The content of the invention
The present invention mainly solves the technical problem present in prior art, so as to provide a kind of for low in ethylene unit
The flange gasket of warm pipeline.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
A kind of flange gasket for Low Temperature Pipe in Ethylene Plant, the flange gasket is circular sheet-like structures, includes one nanometer of gas
A through hole is provided with gel ring, nanoporous aerogel circle, the periphery of nanoporous aerogel circle is connected with a close pressure rock wool circle, close pressure rock wool
The thickness of circle is less than the thickness of nanoporous aerogel circle, and the upper and lower surface of close pressure rock wool circle is respectively provided with an aluminium packing ring and a stainless steel pad
Circle, respectively covers a rubber sealant, the rubber layer of upper and lower surface is integrally formed in the upper and lower surface of close pressure rock wool circle.
As preferred embodiments of the present invention, the thickness of described close pressure rock wool circle is the 1/2 of nanoporous aerogel circle thickness.
As preferred embodiments of the present invention, described aluminium packing ring and the cross section of stainless steel washer are square.
The nanoporous aerogel circle pair that the center of the flange gasket for Low Temperature Pipe in Ethylene Plant of the present invention is set
Cryogen in pipeline has preferably isolation effect, largely reducing low temperature effect of the cryogen to pad, allows flange
Pad has preferably elasticity and sealing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the flange gasket for Low Temperature Pipe in Ethylene Plant of the present invention；
Fig. 2 is the sectional view of the AA ' along along Fig. 1.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in Figure 1 and Figure 2, a kind of flange gasket 1 for Low Temperature Pipe in Ethylene Plant, the flange gasket is circular piece
Shape structure, comprising a nanoporous aerogel circle 10, a through hole 20, the periphery of nanoporous aerogel circle 10 are provided with nanoporous aerogel circle 10
It is connected with a close pressure rock wool circle 11, the thickness of close pressure rock wool circle 11 is less than the thickness of nanoporous aerogel circle 10, close pressure rock wool circle 11
Upper and lower surface be respectively provided with an aluminium packing ring 12 and a stainless steel washer 13, in each one rubber of covering of upper and lower surface of close pressure rock wool circle 11
Glue sealant 30, the rubber layer of upper and lower surface is integrally formed.
As to further improvement of the present invention, the thickness of described close pressure rock wool circle 11 is thick for nanoporous aerogel circle 10
The 1/2 of degree.
As to further improvement of the present invention, described aluminium packing ring 12 and the cross section of stainless steel washer 13 are side
Shape.
The nanoporous aerogel circle pair that the center of the flange gasket for Low Temperature Pipe in Ethylene Plant of the invention is set
Cryogen in pipeline has preferably isolation effect, largely reducing low temperature effect of the cryogen to pad, allows flange
Pad has preferably elasticity and sealing.
Only illustrate the mentality of designing of the present invention in one embodiment above, in the case where system allows, the present invention can
To expand to external more functional modules simultaneously, so as to extend its function to greatest extent.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, should all be included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of flange gasket for Low Temperature Pipe in Ethylene Plant（1）, it is characterised in that the flange gasket is round sheet knot
Structure, includes a nanoporous aerogel circle（10）, nanoporous aerogel circle（10）Inside it is provided with a through hole（20）, nanoporous aerogel circle（10）'s
Periphery and a close pressure rock wool circle（11）Connection, close pressure rock wool circle（11）Thickness be less than nanoporous aerogel circle（10）Thickness, it is close
Press rock wool circle（11）Upper and lower surface be respectively provided with an aluminium packing ring（12）With a stainless steel washer（13）, in close pressure rock wool circle（11）'s
Upper and lower surface respectively covers a rubber sealant（30）, the rubber layer of upper and lower surface is integrally formed.
2. the flange gasket according to claim 1 for Low Temperature Pipe in Ethylene Plant, it is characterised in that described close pressure
Rock wool circle（11）Thickness be nanoporous aerogel circle（10）The 1/2 of thickness.
3. the flange gasket according to claim 2 for Low Temperature Pipe in Ethylene Plant, it is characterised in that described aluminium pad
Circle（12）With stainless steel washer（13）Cross section to be square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720222.4A CN107300074A (en) | 2017-08-21 | 2017-08-21 | Flange gasket for Low Temperature Pipe in Ethylene Plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720222.4A CN107300074A (en) | 2017-08-21 | 2017-08-21 | Flange gasket for Low Temperature Pipe in Ethylene Plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107300074A true CN107300074A (en) | 2017-10-27 |
Family
ID=60131861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710720222.4A Withdrawn CN107300074A (en) | 2017-08-21 | 2017-08-21 | Flange gasket for Low Temperature Pipe in Ethylene Plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107300074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3107504A1 (en) * | 2020-02-26 | 2021-08-27 | Saint-Gobain Isover | FIXING ELEMENT OF A FIXING MEANS OF A CONSTRUCTION ELEMENT INTENDED FOR A SHIP |
-
2017
- 2017-08-21 CN CN201710720222.4A patent/CN107300074A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3107504A1 (en) * | 2020-02-26 | 2021-08-27 | Saint-Gobain Isover | FIXING ELEMENT OF A FIXING MEANS OF A CONSTRUCTION ELEMENT INTENDED FOR A SHIP |
| EP3871969A1 (en) * | 2020-02-26 | 2021-09-01 | Saint-Gobain Isover | Element for attaching a means for attaching a construction element intended for a ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171027 |
|
| WW01 | Invention patent application withdrawn after publication |