CN206290866U - Flange gasket - Google Patents
Flange gasket Download PDFInfo
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- CN206290866U CN206290866U CN201621337592.7U CN201621337592U CN206290866U CN 206290866 U CN206290866 U CN 206290866U CN 201621337592 U CN201621337592 U CN 201621337592U CN 206290866 U CN206290866 U CN 206290866U
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- sealing ring
- flange
- pipeline
- gasket body
- gasket
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Abstract
The utility model discloses a kind of flange gasket, including gasket body, the inwall of gasket body is fixed with the sealing ring being made up of pressure self-sealing flexible material, and the outer wall of sealing ring is fitted the inwalls of pipeline that two flanges constitute, and outer wall and the gasket body of sealing ring are fixed；The gasket body being held between two panels flange also plays sealing effectiveness, and sealing ring and gasket body serve dual sealing functions to the connection between flange, therefore the sealing property between two panels flange can be just improved using sealing ring and gasket body；In addition, fluid can also be produced from internal side pressure outward to the inwall of sealing ring, and this, pressure will be again formed on the surface of sealing ring, so that the outer wall of sealing ring is more tight with what the inwall of pipeline was fitted, so that sealing ring has obtained further raising to the sealing property of pipeline, when the pressure produced by fluid inside pipeline is bigger, sealing ring will be more preferable to the sealing effectiveness of pipeline.
Description
Technical field
The utility model is related to a kind of pad, more specifically, it relates to a kind of flange gasket.
Background technology
Pad is indispensable part when flange is connected in various industry, and the form of pad also has number of different types, but
Itself the construction reason due to pad, when pad is installed, if pad is fitted without rectifying, or tight bolt when
Unbalance stress is waited, can all cause the medium of the inside to be revealed toward outside.But under present circumstances, the pad of leakage is to change online
, a risk source is thus caused, especially for material inflammable and explosive in petrochemical equipment, once leakage can all be caused
Very big risk, or even explosive mixture is eventually formed, consequence is hardly imaginable.For the fluid media (medium) of some high pressures, than
Such as hydraulic oil, pressure may be up to more than hundred kilograms, once leakage, it is more likely that cause the wound of the injury or equipment to personnel
Evil.Also some compressor apparatus, it is possible to which the oil of small amount is leaked from flange and pad, will not be made to equipment in fact
Into too much influence, but due to measuring the pressure reduction of the pressure sensor of oil pressure, finally will also result in that pressure is low chain to stop
Machine.
And traditional flange and gasket seal is constituted by the pressure of bolt and the encapsulant on gasket seal surface,
From the field experience for using can be seen that due to various factors (including pressure height change, temperature height change, it is bolt strained
Inequality, vibrations, pad is not installed on central point etc.) cause flange and sealing gasket that the feelings of leakage occur when in use
Condition.Due to the material in pipeline, many times operating mode is severe comparing, so leak point can only be in isolation most of the time
And carried out under the operating mode after processing.This is all many times have very much restriction and restricted for normal production.
Additionally, in the prior art, gasket seal is made by elastomeric material.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide one kind can effectively solve above-mentioned skill
The flange gasket of art problem.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of flange gasket, including gasket body, the inwall of the gasket body are fixed with by pressure self-sealing flexibility material
The sealing ring that material is made, outer wall two inwalls of flange of laminating of the sealing ring, the external diameter of the sealing ring and the pad
Main body is fixed.
It is further arranged to：Offered in the gasket body with the one-to-one location hole of the bolt hole of flange, it is described
Distance of the central shaft of location hole away from inner-walls of duct is less than distance of the bolt hole away from inner-walls of duct；Along the length of the pipeline of flange
Degree direction, the location hole intersects with the bolt hole.
It is further arranged to：The inwall of the sealing ring is set to concavo-convex mat surface.
It is further arranged to：The sealing ring is welded and fixed with the gasket body.
It is further arranged to：The gasket body is provided with sealed internal chamber.
It is further arranged to：External diameter of the external diameter of the gasket body less than flange.
It is further arranged to：The section of the sealing ring is set to arc setting.
It is further arranged to：The number of the location hole is set to four.
It is further arranged to：The sealing ring is made up of 310 stainless steel materials.
It is further arranged to：The gasket body is formed by soft graphite layer and polytetrafluoroethylene floor compacting.This practicality is new
Type has the beneficial effect that：By above-mentioned technical proposal, when the flange equipped with the flange gasket is in use state, will using bolt
After relative flange fastening, the outer wall of sealing ring has tightly been attached in the inner pipe wall of pipeline, and, it is held on two panels method
Gasket body between orchid also plays sealing effectiveness, and sealing ring and gasket body serve dual close to the connection between flange
Envelope is acted on, therefore the sealing property between two panels flange can be just improved using sealing ring and gasket body；Additionally, when fluid is flowed into
During the pipeline that two panels flange is constituted, the fluid of flowing can be produced from internal side pressure outward to inner-walls of duct in pipeline, meanwhile, stream
Body can also be produced from internal side pressure outward to the inwall of sealing ring, and this, pressure will be again formed on the surface of sealing ring,
So that the outer wall of sealing ring is more tight with what the inwall of pipeline was fitted so that sealing ring is obtained to the sealing property of pipeline
Further to improve, when the pressure produced by fluid inside pipeline is bigger, sealing ring will be more to the sealing effectiveness of pipeline
It is good.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation () of the present embodiment flange gasket；Be also not through-flow body when state；
Fig. 2 is the enlarged drawing in A portions in Fig. 1；
Fig. 3 is the structural representation (two) of the present embodiment flange gasket；Be also through-flow body when state；
Fig. 4 is the enlarged drawing in B portions in Fig. 2.
In figure：01st, flange；011st, bolt；012nd, bolt hole；02nd, gasket body；021st, location hole；022nd, sealed internal chamber；
03rd, pipeline；04th, sealing ring；041st, mat surface.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below will be to technology of the present utility model
Scheme is described in detail.Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other implementation method is put, the scope that the utility model is protected is belonged to.
According to Fig. 1 to Fig. 4 understand, a kind of flange gasket, its be used for 03 flange of pipeline 01 connect in, be two panels flange 01 it
Between seal, it is mainly used in sealing the connection between two panels flange 01；In the present embodiment, it includes pad master
Body 02, in the present embodiment, gasket body 02 is made up of elastomeric material, and the inwall of the gasket body 02 is fixed with by pressure certainly
The sealing ring 04 that sealing flexible material is made, the outer wall of the sealing ring 04 is fixed with the gasket body 02, the sealing ring
The inwalls of the pipeline 03 that 04 outer wall two flanges 01 of laminating are constituted.
According to Fig. 1 and Fig. 2, the flange 01 equipped with the flange gasket is in unused state, now, two panels flange 01
And it is unlocked, wherein, offer bolt hole 012 on the binding face of each flange 01, and two panels flange 01 by bolt 011 with
Bolt hole 012 on two panels flange 01 constitutes threaded connection with fixation, and the flange gasket is held on the laminating of two panels flange 01
Between face, and the inner ring side of gasket body 02 is fixed with sealing ring 04, the outer wall of the sealing ring 04 (i.e. sealing ring 04 and institute
State the side wall of the fixation of gasket body 02) two inwalls of the pipeline 03 of the composition of flanges 01 of laminating.
According to Fig. 3 and Fig. 4, when the flange 01 equipped with the flange gasket is in use state, using bolt 011 by phase
To flange 01 fasten after, the outer wall of sealing ring 04 has tightly been attached in the inner pipe wall of pipeline 03, and, be held on two
Gasket body 02 between piece flange 01 also plays sealing effectiveness, and sealing ring 04 and gasket body 02 are to the company between flange 01
Connect and serve dual sealing functions, therefore the sealing between two panels flange 01 can be just improved using sealing ring 04 and gasket body 02
Performance；Additionally, as Fig. 3 and Fig. 4 understands, when fluid flows into the pipeline 03 of the composition of two panels flange 01, the stream of flowing in pipeline 03
Know from experience and the inwall of pipeline 03 is produced from internal side pressure outward, meanwhile, fluid can be also produced from inside to the inwall of sealing ring 04
Side pressure outward, and this, will again form pressure on the surface of sealing ring 04 so that the outer wall of sealing ring 04 and pipeline 03
It is more tight that inwall is fitted so that sealing ring 04 has obtained further raising to the sealing property of pipeline 03, works as pipeline
When the pressure produced by fluid inside 03 is bigger, sealing ring 04 will be more preferable to the sealing effectiveness of pipeline 03.
Additionally, in the present embodiment, being offered in the gasket body 02 one-to-one with the bolt hole 012 of flange 01
Location hole 021, for location hole 021, further optimization：The distance of central shaft of the location hole 021 away from the pipeline 03 is small
In the distance of central shaft of the bolt hole 012 away from the pipeline 03；This also just thinks this in the central shaft along the pipeline 03
Direction on, the location hole 021 intersects with the bolt hole 012；Be can be seen that when all of bolt 011 from Fig. 1 and Fig. 2
Before being not passed through the location hole 021 of bolt 011 of pad, direction of the sealing ring 04 in upwarping naturally can be with from Fig. 3 and Fig. 4
Find out, by the bolt hole 012 for piercing into location hole 021 and flange 01 all slowly of bolt 011, when bolt 011 does not tighten it also
Before, the direction of the central shaft that the edge of location hole 021 in the presence of bolt 011, can be directed away from location hole 021 is deformed
Extend, and this will produce the pulling force in the direction of the central shaft for being directed away from location hole 021 to gasket body 02, because pad master
Body 02 is fixed with sealing ring 04, therefore sealing ring 04 can also be subject to the pulling force in the direction of the central shaft for being directed away from location hole 021, this
Also allowing for sealing ring 04 can further press close to the inwall of pipeline 03 of flange 01 so that sealing of the sealing ring 04 to pipeline 03
Performance has obtained further raising.
And, in the prior art, the bolt hole 012 on flange 01 is uniformly distributed on the binding face of flange 01, and position
Corresponded in the location hole 021 in gasket body 02 and bolt hole 012, gasket body 02 is adapted to and coaxial with flange 01, therefore
Location hole 021 is also uniformly distributed on pad, so, it is also ensured that the pulling force that gasket body 02 is born with sealing ring 04 is more
Plus it is uniform.
Additionally, gasket body 02 is due to receiving the pulling force of bolt 011, therefore when bolt 011 through bolt hole 012 and positioning
During hole 021, just can cause that pad realizes, the presence of location hole 021 coaxial with pipeline 03, gasket body 02 can have been entered
Row is positioned well, and, sealing ring 04 now has tightly been attached to above the inwall of pipeline 03, serves sealing
Effect.
Certainly, herein, when bolt 011 is tightened into bolt hole 012 with location hole 021, it should while will be on pipeline
03 substantially symmetrical about its central axis two bolt hole 012 tightens bolt 011, in this manner it is possible to effectively prevent the generation of situations below：
On two location holes 021 substantially symmetrical about its central axis of pipeline 03, if only utilizing the one of location hole 021 of bolt 011, may lead
It is to be installed with the location hole 021 of bolt 011 to be pullled to inclined towards the direction of the location hole 021 for being installed with bolt 011 to cause another
Move, and this, it is possible to cause on the direction of the central shaft along the pipeline 03, the location hole 021 for not being installed with bolt 011
With the corresponding bolt hole 012 from this location hole 021 also resulted on pad can not be symmetrical through bolt
011 so that the pulling force suffered by sealing ring 04 is uneven, so as to the degree of being adjacent between the inwall for causing sealing ring 04 and pipeline 03
Inconsistent, this will influence the sealing effectiveness of sealing ring 04.
Additionally, being the sealing property for further improving the flange gasket, therefore in the present embodiment, enter in the present embodiment
Row is arranged below：The inwall of the sealing ring 04 is set to concavo-convex mat surface 041, and the mat surface 041 can be in sealing ring 04
Incised groove is offered on inwall or wave groove is formed, it can increase the contact surface between fluid and the sealing ring 04
Product, do so, it is possible to so that the extruding force from fluid suffered by sealing ring 04 is more uniform so that sealing ring 04 with
Degree of being adjacent between the inwall of pipeline 03 is more uniform, and this will further improve the sealing effectiveness of sealing ring 04.
And, the section of the sealing ring 04 is set to arc setting；In this manner it is possible to so that coming suffered by sealing ring 04
Extruding force from fluid is more uniform so that the degree of being adjacent between the inwall of sealing ring 04 and pipeline 03 is more uniform, and this is just
The sealing effectiveness of sealing ring 04 can further be improved.
The sealing ring 04 is welded and fixed with the gasket body 02, that is, cause that sealing ring 04 is completely tight with gasket body 02
Thickly fuse together, further improve bonding strength therebetween.
Additionally, in the presence of location hole 021, the external diameter of the gasket body 02 can be further arranged to less than flange
01 external diameter；In this manner it is possible to reduce the consumption of gasket body 02, production cost is reduced.
The number of the location hole 021 is set to four, and certainly, in the present embodiment, the number of location hole 021 does not do
Limit, need to only meet it and be corresponded with the bolt hole 012 on flange 01.
Additionally, the sealing ring 04 is made up of 310 stainless steel materials.310 stainless steels are that austenitic chromium nickel stainless steel has
Good inoxidizability, corrosion resistance, because the chromium and nickel of higher percent, 310s possesses much better creep strength, in high temperature
Lower energy continuous operation, with good heat-resisting quantity；Certainly, sealing ring 04 can also be made from other materials.
Additionally, in the present embodiment, the gasket body 02 is provided with sealed internal chamber 022；So, if fluid is to sealing ring
When 04 extruding force is excessive, sealing ring 04 will be directed away from the Direction distortion of the central shaft of pipeline 03, and this will dummy block
Piece main body 02 is directed away from the Direction distortion of the central shaft of pipeline 03, because the presence of sealed internal chamber 022, therefore gasket body 02 is just
Can interior recessed sealed internal chamber 022.
And, the gasket body 02 is exemplary to be set to be formed by soft graphite layer and polytetrafluoroethylene floor compacting.
The flange gasket has pressure self-sealing characteristic, and the fluid medium pressure in pipeline 03 is higher, and its sealing property is got over
It is good, so as to overcome the deficiency that existing pad causes sealing property to reduce because the pressure medium in pipeline 03 is raised.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (9)
1. a kind of flange gasket, including gasket body (02), it is characterized by：The inwall of the gasket body (02) is fixed with by pressing
The sealing ring (04) that power self sealss flexible material is made, two pipes of flanges (01) composition of outer wall laminating of the sealing ring (04)
The inwall in road (03), the outer wall of the sealing ring (04) is fixed with the gasket body (02).
2. flange gasket according to claim 1, it is characterized by：Offered on the gasket body (02) and flange (01)
The one-to-one location hole (021) of bolt hole (012), central shaft of the location hole (021) away from the pipeline (03) away from
With a distance from the central shaft less than the bolt hole (012) away from the pipeline (03)；Along the central axis direction of the pipeline (03),
The location hole (021) is intersected with the bolt hole (012).
3. flange gasket according to claim 1, it is characterized by：The inwall of the sealing ring (04) is set to concavo-convex coarse
Face (041).
4. flange gasket according to claim 1, it is characterized by：The sealing ring (04) is welded with the gasket body (02)
Connect fixation.
5. flange gasket according to claim 1, it is characterized by：The gasket body (02) is provided with sealed internal chamber
(022)。
6. flange gasket according to claim 1, it is characterized by：The external diameter of the gasket body (02) is less than flange (01)
External diameter.
7. flange gasket according to claim 1, it is characterized by：The section of the sealing ring (04) is set to arc setting.
8. flange gasket according to claim 2, it is characterized by：The number of the location hole (021) is set to four.
9. flange gasket according to claim 1, it is characterized by：The sealing ring (04) is made up of 310 stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337592.7U CN206290866U (en) | 2016-12-07 | 2016-12-07 | Flange gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337592.7U CN206290866U (en) | 2016-12-07 | 2016-12-07 | Flange gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290866U true CN206290866U (en) | 2017-06-30 |
Family
ID=59098071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621337592.7U Active CN206290866U (en) | 2016-12-07 | 2016-12-07 | Flange gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465645A (en) * | 2021-06-17 | 2021-10-01 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| CN113864551A (en) * | 2021-10-25 | 2021-12-31 | 沪东重机有限公司 | Connecting structure for connecting pipelines with different pipe diameters |
-
2016
- 2016-12-07 CN CN201621337592.7U patent/CN206290866U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465645A (en) * | 2021-06-17 | 2021-10-01 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| CN113465645B (en) * | 2021-06-17 | 2023-03-14 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| CN113864551A (en) * | 2021-10-25 | 2021-12-31 | 沪东重机有限公司 | Connecting structure for connecting pipelines with different pipe diameters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180619 Address after: 300460 Tianjin Binhai New Area Lingang Economic Zone Bohai thirteen road 189 Patentee after: Tianjin Bohai Petrochemical Co., Ltd. Address before: 300450 Tianjin Binhai New Area Lingang Economic Zone Bohai thirteen road 189 Patentee before: Tianjin Bohai Sea fossilisation company limited |