CN208546637U - A kind of lightweight high-temperature steam special flange structure - Google Patents
A kind of lightweight high-temperature steam special flange structure Download PDFInfo
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- CN208546637U CN208546637U CN201820770269.1U CN201820770269U CN208546637U CN 208546637 U CN208546637 U CN 208546637U CN 201820770269 U CN201820770269 U CN 201820770269U CN 208546637 U CN208546637 U CN 208546637U
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- flange
- lower flange
- upper flange
- studs
- temperature steam
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Abstract
The utility model discloses a kind of lightweight high-temperature steam special flange structures, including upper flange, nut, spherical pad, studs, lower flange, grooved metal gasket and lantern ring, the upper flange and lower flange are provided with identical quantity, symmetrical bolt hole, the studs is arranged in the bolt hole of upper flange and lower flange, the nut is connected through a screw thread the upper and lower ends for being separately mounted to studs, the spherical pad is separately positioned on nut and upper flange, between lower flange, the grooved metal gasket is arranged between upper flange and the sealing surface of lower flange, the lantern ring is mounted on the joint face of upper flange lower end boss and lower flange upper end boss.Grooved metal gasket most inner side one encloses the design that tooth is higher than remaining tooth in the utility model, can prevent composite material from entering pipeline, pollution medium; equipment is damaged, meanwhile, the design of ring set and air-flow pilot hole; when leaking, can effectively water conservancy diversion gas leakage, protection related personnel preserve from.
Description
Technical field
The present invention relates to pipe fitting interconnection technique field, specially a kind of lightweight high-temperature steam special flange structure.
Background technique
Flange is part interconnected between pipe and pipe, and for the connection between pipe end, flanged joint is easy with it
It is widely used in the junction of pressure piping and pressure vessel in the advantages of dismounting.In Modern Ships high-temperature high-pressure overheat steam system
In system, flange is the important component of system, and reliability directly affects dynamical system function and using safe.Dynamical system
Maximum working pressure 6.4MPa, 470 DEG C of maximum operating temperature, working media is superheated steam.For its matched flanged joint
Part is the core product of high temperature and pressure special type piping fitting, and current matched product uses superelevation neck lightweight non-standard flange, close
Packing uses 08F steel grooved metal gasket, and in actual use in stress alternation thermal cycle operating condition, sealed environment condition is poor, and leakage is
One of main failure mode.
Chinese Patent Application No.: CN201520213834.0, authorized announcement date: on September 23rd, 2015 discloses a kind of high
Warm flange gasket tooth form connects structure, including mutually matched upper flange and lower flange, the upper flange and lower flange point
Not Bao Kuo integrally formed ring flange, cone neck and pipeline cylinder, be equipped with gasket between the upper flange and lower flange, it is described on
The continuous groove structure being respectively equipped on the upper sealing surface of flange and the lower sealing surface of lower flange at least one section of same radius.
Chinese Patent Application No.: CN201310191292.7, authorized announcement date: on December 4th, 2013, a kind of tooth
Gasket, including ontology, the ontology upper and lower end face are uniformly provided with serrate slot, and it is thin that the tooth form rooved face is equipped with polytetrafluoroethylene (PTFE)
Film, the polytetrafluoroethylene film is with a thickness of 0.2mm-0.5mm.
Although above-mentioned technology can reduce the leakage of flange connections, it still has more apparent defect: 1,
When failure mode occurs for flange connections --- when leakage, without any effective protective device, steam to high temperature and pressure or
Liquid is oriented guiding, is easy to damage related personnel, existing great security risk.2, it is in high temperature height for a long time
Composite film material in pressure, perishable environment is easy to fall off, and into inside pipeline, and then is polluted working media, is damaged equipment.
Summary of the invention
The purpose of the present invention is to provide a kind of lightweight high-temperature steam special flange structures, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of lightweight high-temperature steam special flange structure, including upper flange, nut, spherical pad, studs, laxative remedy
Blue, grooved metal gasket and lantern ring, the lower end of the upper flange are provided with boss, and boss, upper flange is arranged in the upper end of the lower flange
Lower flange is provided with identical quantity, symmetrical bolt hole, the bolt of upper flange and lower flange is arranged in the studs
In hole, studs has multiple, and the nut is connected through a screw thread the upper and lower ends for being separately mounted to studs, the spherical surface
Gasket is separately positioned between nut and upper flange, lower flange, and the sealing of upper flange and lower flange is arranged in the grooved metal gasket
Between face, the lantern ring is mounted on the joint face of upper flange lower end boss and lower flange upper end boss.
Preferably, grooved metal gasket is provided between the upper flange and the sealing surface of lower flange.
Preferably, the grooved metal gasket most inner side one encloses tooth higher than remaining tooth.
Preferably, lantern ring is installed on the joint face of the upper flange lower end boss and lower flange upper end boss.
Preferably, air-flow pilot hole is offered on the lantern ring.
Compared with prior art, the beneficial effects of the present invention are:
The present invention uses the grooved metal gasket of composite material by increasing, and effectively improves the leakproofness of flanged joint, drops
The probability of low junction leakage, grooved metal gasket most inner side one enclose the design that tooth is higher than remaining tooth, can prevent composite material from entering
Pipeline, pollution medium damage equipment, meanwhile, the design of ring set and air-flow pilot hole can be when leaking, and effective water conservancy diversion is let out
Gas leakage body, protection related personnel preserve from.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the cross-sectional view of lantern ring of the invention；
Fig. 3 is the top view of lantern ring of the invention；
Fig. 4 is the front view of lantern ring of the invention；
Fig. 5 is the area I enlarged structure schematic diagram of the invention.
In figure: 1 upper flange, 2 nuts, 3 spherical pads, 4 studs, 5 lower flanges, 6 grooved metal gaskets, 7 lantern rings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution:
A kind of lightweight high-temperature steam special flange structure, including upper flange 1, nut 2, spherical pad 3, studs 4,
Lower flange 5, grooved metal gasket 6 and lantern ring 7, the lower end of upper flange 1 are provided with boss, and boss, upper flange is arranged in the upper end of lower flange 5
1 and lower flange 5 be provided with identical quantity, symmetrical bolt hole, the bolt of upper flange 1 and lower flange 5 is arranged in studs 4
In hole, studs 4 has multiple, and nut 2 is connected through a screw thread the upper and lower ends for being separately mounted to studs 4, spherical pad 3
It is separately positioned between nut 2 and upper flange 1, lower flange 5, spherical pad 3 has retaining effect, increases the friction between bolt
Power, grooved metal gasket 6 are arranged between upper flange 1 and the sealing surface of lower flange 5, and grooved metal gasket 6 is using the durable imperial composite layer of high temperature
It is formed with 1Cr5Mo ontology dentiform gasket, resistant to high temperature to reduce slip simultaneously, 6 most inner side one of grooved metal gasket encloses tooth and is higher than it
Remaining tooth, effectively prevent composite layer to shed into inside pipeline, pollutes working media, damages equipment, and lantern ring 7 is mounted on upper flange 1
On the joint face of 5 upper end boss of lower end boss and lower flange, air-flow pilot hole is offered on lantern ring 7, when leaking, lantern ring 7
Effectively high temperature gas flow can be oriented to, avoid casualties.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of lightweight high-temperature steam special flange structure, including upper flange (1), nut (2), spherical pad (3), double end spiral shell
Column (4), lower flange (5), grooved metal gasket (6), lantern ring (7), it is characterised in that: the lower end of the upper flange (1) is provided with boss,
Boss is arranged in the upper end of the lower flange (5), and upper flange (1) and lower flange (5) are provided with identical quantity, symmetrical bolt
Hole；
The studs (4) is arranged in the bolt hole of upper flange (1) and lower flange (5), and studs (4) has multiple, institute
It states nut (2) and is connected through a screw thread the upper and lower ends for being separately mounted to studs (4)；
The spherical pad (3) is separately positioned between nut (2) and upper flange (1), lower flange (5), the grooved metal gasket (6)
It is arranged between upper flange (1) and the sealing surface of lower flange (5), the lantern ring (7) is mounted on upper flange (1) lower end boss under
On the joint face of flange (5) upper end boss.
2. a kind of lightweight high-temperature steam special flange structure according to claim 1, it is characterised in that: described in upper method
Grooved metal gasket (6) are provided between blue (1) and the sealing surface of lower flange (5).
3. a kind of lightweight high-temperature steam special flange structure according to claim 2, it is characterised in that: the dentiform gasket
Piece (6) most inner side one encloses tooth and is higher than remaining tooth.
4. a kind of lightweight high-temperature steam special flange structure according to claim 1, it is characterised in that: the upper flange
(1) lantern ring (7) are installed on the joint face of lower end boss and lower flange (5) upper end boss.
5. a kind of lightweight high-temperature steam special flange structure according to claim 4, it is characterised in that: the lantern ring
(7) air-flow pilot hole is offered on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770269.1U CN208546637U (en) | 2018-05-23 | 2018-05-23 | A kind of lightweight high-temperature steam special flange structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770269.1U CN208546637U (en) | 2018-05-23 | 2018-05-23 | A kind of lightweight high-temperature steam special flange structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208546637U true CN208546637U (en) | 2019-02-26 |
Family
ID=65420071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820770269.1U Active CN208546637U (en) | 2018-05-23 | 2018-05-23 | A kind of lightweight high-temperature steam special flange structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208546637U (en) |
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2018
- 2018-05-23 CN CN201820770269.1U patent/CN208546637U/en active Active
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