CN205781551U - A kind of compact flange seals structure - Google Patents
A kind of compact flange seals structure Download PDFInfo
- Publication number
- CN205781551U CN205781551U CN201620417011.4U CN201620417011U CN205781551U CN 205781551 U CN205781551 U CN 205781551U CN 201620417011 U CN201620417011 U CN 201620417011U CN 205781551 U CN205781551 U CN 205781551U
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- CN
- China
- Prior art keywords
- flange
- flanges
- bolt
- groove
- seals
- 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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- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of compact flange and seal structure, it is characterized in that, including a pair flange, the opposite face of two flanges is provided with groove, metal gasket ring it is provided with in this groove, the edge of two flanges is equipped with connecting hole, and the bolt connection that two flanges are arranged in connecting hole, the end of bolt is provided with nut.Flange is through three seals: first is sealed in wedge portion, mainly for preventing external corrosion foreign material from entering sealing surface；Second is sealed in root, two face stress laminatings of flange, plays time sealing；Three seals is at seal groove, under the effect of bolt pretightening, forms the aspectant close contact of metal, is main seal herein.Owing to using less bolt pretightening and being metallic packing ring, then the damaged condition of sealing ring reduces.
Description
Technical field
This utility model relates to a kind of compact flange and seals structure, is specifically related to a kind of low leakage rate high voltage bearing
Compact flange seals structure.
Background technology
Substantial amounts of flange all applied by pipeline in the steel constructions such as marine petroleum exploitation platform, FPSO, seabed manifold
Connect, and marine environment very severe, parts will bear high temperature and high pressure in most cases, once reveal
Will result in huge environmental pollution and loss of personal property, and maintenance cost is the highest.If employing size is little,
Lightweight and the compact flange type of attachment of good airproof performance, the most not only reduces material cost, installs cost of labor,
Disclosure risk can also be reduced, greatly improve operation environment safety coefficient.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of high voltage bearing compact flange of low leakage rate and seals
Structure.
In order to solve the problems referred to above, this utility model provides a kind of compact flange and seals structure, and its feature exists
In, including a pair flange, the opposite face of two flanges is provided with groove, is provided with metal gasket ring in this groove, two
The edge of flange is equipped with connecting hole, and the bolt connection that two flanges are arranged in connecting hole, the end of bolt sets
There is nut.
Preferably, the inclination angle of described flange sealing surface is at 0.15～0.40 °.
Flange is through three seals: first is sealed in wedge portion, close mainly for preventing external corrosion foreign material from entering
Front cover；Second is sealed in root, two face stress laminatings of flange, plays time sealing；Three seals exists
At seal groove, under the effect of bolt pretightening, form the aspectant close contact of metal, be the closeest herein
Envelope.Owing to using less bolt pretightening and being metallic packing ring, then the damaged condition of sealing ring reduces.
Compared with prior art, the beneficial effects of the utility model are:
1, flange seal ring replaces gasket seal, durable；
2, bolt pretightening is little, reduces installation cost；
3, size and the less flange of wall thickness can be used to bear the environment of equal pressure and temperature；
4, products application scope is wide, it can be ensured that under high/low temperature, high pressure, zero reveals.
Accompanying drawing explanation
Fig. 1 seals the schematic diagram of structure for the compact flange that this utility model provides；
Fig. 2 is the sectional view of single-side flange；
Fig. 3 is the schematic diagram that in Fig. 2, the part A of both sides flange matches.
Detailed description of the invention
For making this utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
As Figure 1-3, a kind of compact flange provided for this utility model seals structure, including a pair method
Blue 1, the opposite face of two flanges 1 is provided with groove 5, is provided with metal gasket ring 2, two flanges 1 in this groove
Edge be equipped with connecting hole 6, the bolt 3 that two flanges 1 are arranged in connecting hole 6 connects, bolt 3
End is provided with nut 4.
A diameter of 24 cun of flange 1, material is A522Type I, and the angle of inclination of flange sealing surface 7 is 0.28
°；A diameter of IX600 of metal gasket ring 2, material is nickel-base alloy 625；Bolt 3 and nut 4 are A320
Gr.L43/A194Gr.4/S3 (3-1/2 cun of x700mm).
After equipment installation, carry out gas pressure test and high/low temperature pressure cycling test, verify the close of this structure
Feng Xing.Gas pressure test is whole sealing structure to be immersed in the water, and is then charged with nitrogen pressurization, at pressure 69MPa
Lower pressurize 1 hour, without bubbling phenomenon, illustrates that this sealing system is without revealing.For verifying that this seals structure and is more disliking
Sealing effectiveness in the environment of bad, is placed in this sealing system high temperature (123 DEG C) and low temperature (-60 DEG C) and keeps
In the environment of high pressure, result of the test shows, in the case of pressurize, pressure, without being decreased obviously, further illustrates this
Sealing system the most still has good sealing.
Claims (2)
1. a compact flange seals structure, it is characterised in that include a pair flange (1), two flanges (1)
Opposite face be provided with groove (5), be provided with metal gasket ring (2) in this groove, the edge of two flanges (1) is equal
It is provided with connecting hole (6), bolt (3) connection that two flanges (1) are arranged in connecting hole (6), bolt
(3) end is provided with nut (4).
2. compact flange as claimed in claim 1 seals structure, it is characterised in that described flange sealing surface (7)
Inclination angle at 0.15～0.40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417011.4U CN205781551U (en) | 2016-05-10 | 2016-05-10 | A kind of compact flange seals structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417011.4U CN205781551U (en) | 2016-05-10 | 2016-05-10 | A kind of compact flange seals structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781551U true CN205781551U (en) | 2016-12-07 |
Family
ID=57412762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417011.4U Expired - Fee Related CN205781551U (en) | 2016-05-10 | 2016-05-10 | A kind of compact flange seals structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058785A (en) * | 2019-12-20 | 2020-04-24 | 宝鸡石油机械有限责任公司 | Adjustable connecting device suitable for manifold connection |
-
2016
- 2016-05-10 CN CN201620417011.4U patent/CN205781551U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058785A (en) * | 2019-12-20 | 2020-04-24 | 宝鸡石油机械有限责任公司 | Adjustable connecting device suitable for manifold connection |
| CN111058785B (en) * | 2019-12-20 | 2021-12-14 | 宝鸡石油机械有限责任公司 | Adjustable connecting device suitable for manifold connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 |