CN203880274U - High-temperature pipeline flange - Google Patents
High-temperature pipeline flange Download PDFInfo
- Publication number
- CN203880274U CN203880274U CN201420242356.1U CN201420242356U CN203880274U CN 203880274 U CN203880274 U CN 203880274U CN 201420242356 U CN201420242356 U CN 201420242356U CN 203880274 U CN203880274 U CN 203880274U
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- China
- Prior art keywords
- annular
- flange
- flange body
- convex
- groove
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- Expired - Fee Related
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model relates to a pipeline connector flange, in particular to a high-temperature pipeline flange. The high-temperature pipeline flange is characterized in that a convex flange body and a concave flange body are included, and the convex flange body and the concave flange body are respectively provided with a connection hole and a bearing port; the sealing surface of the convex flange body is provided with an annular convex ring, and the sealing surface of the concave flange body is provided with an annular sealing groove matched with the annular convex ring; the outer side face of the annular convex ring is provided with one or more annular grooves, and the inside of each annular groove is provided with a sealing ring; a gasket is arranged in the annular sealing groove. The pipeline flange can be applied to high-temperature high-pressure work conditions and good tightness is maintained for a long time.
Description
Technical field
The utility model relates to a kind of pipe joint flange, is specifically related to a kind of high-temperature pipe flange.
Background technique
Flange connects the joint that is widely used in petrochemical industry pressure piping and pressure vessel with its easy-disassembling-assembling advantage.When high temperature and high pressure condition, easily there is leakage failure in flange connections for a long time.All can there is creep in various degree in operating mode lower flange, bolt, pad, pad power, bolt force all change, and pad unbalance stress, pad residual stress reduce, and finally cause leakage failure.Under High Temperature High Pressure serviceability, in common usage orchid, the existence of boss can make can produce larger moment of flexure between bolt hole place bolt force and pad point of action, and various material creeps during aggravation flange connects, cause leakage failure to take place frequently.
Summary of the invention
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of high-temperature pipe flange, and this piping flange can be applied to high temperature and high pressure condition, and keeps for a long time good tightness.
For achieving the above object, technical solution adopted in the utility model is:
A high-temperature pipe flange, is characterized in that: it comprises convex flange body and female flange body, and described convex flange body and female flange body are all provided with attachment hole and birdsmouth; The sealing surface of described convex flange body is provided with annular bead, and the sealing surface of described female flange body is provided with the annular seal groove matching; The outer side surface of described annular bead is provided with one or more annular grooves, in each annular groove, is provided with seal ring; In described annular seal groove, be provided with pad.
The outer side surface of described annular bead is provided with three annular grooves, in each annular groove, is provided with seal ring.
Described seal ring is metallic packing ring.
The beneficial effects of the utility model are: piping flange of the present utility model can be applied to high temperature and high pressure condition, and keep for a long time good tightness, and structure optimization, easy to operate, and high temperature and high pressure condition lower seal effect is lasting.First the sealing surface of this piping flange utilizes seal ring that axial sealing is provided, under high-temperature and high-pressure conditions because of temperature gradient, material degeneration, material creep, pad power and bolt force can change, the sealing of three seal rings herein is not subject to the impact of pad power and bolt force, shows lasting sealing effect; Next arranges metal and the sealing of Metal Contact type, strengthens sealability; Gasket seal is finally set, and pad is stressed evenly, good sealing effect; Avoid arranging boss, weakened the moment of flexure between attachment hole and pad force position, weakened deflection and creep that high temperature and high pressure environment lower flange produces because of moment of flexure; And the turning point stress between flange plate and birdsmouth is less, can save generally the cone neck with neck welding neckflange, simplified structure.The utility model is designed to overall structure by birdsmouth and flange body, has avoided because butt welding weld bond defect causes leakage, simple in structure, easy to use.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's whole sectional structure schematic diagram.
Fig. 2 is D portion enlarged view in Fig. 1.
In figure: 1-convex flange body, 2-attachment hole, 3-female flange body, 4-birdsmouth, 5-annular bead, 6-annular seal groove, 7-pad, 8-seal ring.
Embodiment
In order better to understand the utility model, below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
As shown in Figure 1, 2, a kind of high-temperature pipe flange, it comprises convex flange body 1 and female flange body 3, and described convex flange body 1 is all provided with (a plurality of for interconnective) attachment hole 2 and is structure as a whole with respective flange body with the birdsmouth 4 described in (one for be connected with pipeline) birdsmouth 4(with female flange body 3); On the sealing surface of described convex flange body 1, (along hoop) is provided with annular bead 5, the sealing surface of described female flange body 3 is provided with it the annular seal groove 6(of (being annular bead 5) coupling while interconnecting, and the whole sealing surface of convex flange body 1 and female flange body 3 is all in contact with one another); The outer side surface of described annular bead 5 is provided with one or more annular grooves, is provided with seal ring 8 in each annular groove; In described annular seal groove 6, be provided with pad 7(pad space and set according to the standard of the corresponding pad of flange, need to consider gasket compression amount).
The outer side surface of described annular bead 5 is provided with three annular grooves, is provided with seal ring 8 in each annular groove.
Described seal ring 8 is preferably metallic packing ring.
The principle of described seal ring 8: described seal ring 8 is a kind of annular seals jaggy of being with, and it is placed in annular groove, and the breach of seal ring 8 has elasticity after being pressed and is pushed against on the inner hole wall of static element, can play the effect of sealing.
Claims (3)
1. a high-temperature pipe flange, is characterized in that: it comprises convex flange body (1) and female flange body (3), and described convex flange body (1) and female flange body (3) are all provided with attachment hole (2) and birdsmouth (4); The sealing surface of described convex flange body (1) is provided with annular bead (5), and the sealing surface of described female flange body (3) is provided with the annular seal groove (6) matching; The outer side surface of described annular bead (5) is provided with one or more annular grooves, is provided with seal ring (8) in each annular groove; In described annular seal groove (6), be provided with pad (7).
2. a kind of high-temperature pipe flange according to claim 1, is characterized in that: the outer side surface of described annular bead (5) is provided with three annular grooves, is provided with seal ring (8) in each annular groove.
3. a kind of high-temperature pipe flange according to claim 1, is characterized in that: described seal ring (8) is metallic packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242356.1U CN203880274U (en) | 2014-05-13 | 2014-05-13 | High-temperature pipeline flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242356.1U CN203880274U (en) | 2014-05-13 | 2014-05-13 | High-temperature pipeline flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880274U true CN203880274U (en) | 2014-10-15 |
Family
ID=51680769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420242356.1U Expired - Fee Related CN203880274U (en) | 2014-05-13 | 2014-05-13 | High-temperature pipeline flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880274U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862615A (en) * | 2015-03-31 | 2015-08-26 | 无锡市华尔泰机械制造有限公司 | S31803 duplex stainless steel flange and production process thereof |
| CN105134806A (en) * | 2015-08-26 | 2015-12-09 | 鞍山海量有色金属材料制造有限公司 | No-water-cooling large flange |
| CN105928669A (en) * | 2016-04-22 | 2016-09-07 | 武汉工程大学 | Flange connection leakage early warning device |
| CN106151722A (en) * | 2016-08-30 | 2016-11-23 | 无锡市兴盛环保设备有限公司 | A kind of sealing and connecting device of conveyance conduit |
| CN106499893A (en) * | 2016-12-28 | 2017-03-15 | 核动力运行研究所 | A kind of multiple-sealed flange with leakage monitoring function |
| CN107606349A (en) * | 2017-09-08 | 2018-01-19 | 江苏润泰电力设备有限公司 | A kind of special pipeline connecting flange |
| CN108662315A (en) * | 2018-07-27 | 2018-10-16 | 王晴 | A kind of feed pipe of the construction site convenient for connection |
| CN110174023A (en) * | 2019-05-28 | 2019-08-27 | 江苏龙净节能科技有限公司 | For the flange sealing structure in heat-exchanger rig header |
| CN111188947A (en) * | 2020-03-01 | 2020-05-22 | 龚宏亮 | Glass fiber reinforced plastic pipeline |
| CN114033903A (en) * | 2021-11-25 | 2022-02-11 | 刘玉清 | Liquid pipeline flange |
-
2014
- 2014-05-13 CN CN201420242356.1U patent/CN203880274U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862615A (en) * | 2015-03-31 | 2015-08-26 | 无锡市华尔泰机械制造有限公司 | S31803 duplex stainless steel flange and production process thereof |
| CN104862615B (en) * | 2015-03-31 | 2017-03-15 | 无锡市华尔泰机械制造有限公司 | A kind of production technology of S31803 two-phase stainless steel flange |
| CN105134806A (en) * | 2015-08-26 | 2015-12-09 | 鞍山海量有色金属材料制造有限公司 | No-water-cooling large flange |
| CN105928669A (en) * | 2016-04-22 | 2016-09-07 | 武汉工程大学 | Flange connection leakage early warning device |
| CN106151722A (en) * | 2016-08-30 | 2016-11-23 | 无锡市兴盛环保设备有限公司 | A kind of sealing and connecting device of conveyance conduit |
| CN106499893A (en) * | 2016-12-28 | 2017-03-15 | 核动力运行研究所 | A kind of multiple-sealed flange with leakage monitoring function |
| CN107606349A (en) * | 2017-09-08 | 2018-01-19 | 江苏润泰电力设备有限公司 | A kind of special pipeline connecting flange |
| CN108662315A (en) * | 2018-07-27 | 2018-10-16 | 王晴 | A kind of feed pipe of the construction site convenient for connection |
| CN110174023A (en) * | 2019-05-28 | 2019-08-27 | 江苏龙净节能科技有限公司 | For the flange sealing structure in heat-exchanger rig header |
| CN111188947A (en) * | 2020-03-01 | 2020-05-22 | 龚宏亮 | Glass fiber reinforced plastic pipeline |
| CN114033903A (en) * | 2021-11-25 | 2022-02-11 | 刘玉清 | Liquid pipeline flange |
| CN114033903B (en) * | 2021-11-25 | 2023-07-04 | 无锡艾尔特石化机械有限公司 | Liquid pipeline flange |
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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 |
Granted publication date: 20141015 Termination date: 20160513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |