CN209041815U - A kind of high temperature and pressure fire-type flange sealing structure - Google Patents
A kind of high temperature and pressure fire-type flange sealing structure Download PDFInfo
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- CN209041815U CN209041815U CN201821620588.0U CN201821620588U CN209041815U CN 209041815 U CN209041815 U CN 209041815U CN 201821620588 U CN201821620588 U CN 201821620588U CN 209041815 U CN209041815 U CN 209041815U
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Abstract
The utility model discloses a kind of high temperature and pressure fire-type flange sealing structures, including first flange, second flange, sealing element, fixing piece and locating part, the end face axial of first flange is equipped with lug boss, the end face of second flange is equipped with the recessed portion plugged for lug boss, sealing element is arranged between first flange and second flange, and fixing piece is circumferentially arranged in first flange and second flange and the two is locked；The sealing element includes first seal, second seal and third sealing element.The utility model has the beneficial effects that enhancing the leakproofness of flange by the sealing element provided with three.Three seals part uses the material of high temperature high voltage resistant material, and flange is made to have high-temperature-resistant high-pressure-resistant and fireproof function.
Description
Technical field
The utility model relates to flange technical field, in particular to a kind of high temperature and pressure fire-type flange sealing structure.
Background technique
Flange is called flange flange disk or flange, is part interconnected between axis and axis, between pipe end or setting
The connection of standby inlet and outlet.Flange sealing structure refer to by flange, sealing element and stud three be connected with each other as one group combine it is close
Seal removable connection structure.Common flange sealing structure is generally equipped with a sealing element between the flanges, this monistic
Sealing structure cannot play good sealing effect, and be difficult to meet high-temperature-resistant high-pressure-resistant and fireproof demand.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of both high-temperature-resistant high-pressure-resistants and fire prevention while sealing effect
The good flange sealing structure of fruit.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions: a kind of high temperature and pressure is anti-
Fire type flange sealing structure, including first flange, second flange, sealing element, fixing piece and locating part, the end face axis of first flange
To being equipped with lug boss, the end face of second flange is equipped with the recessed portion plugged for lug boss, and sealing element setting is in first flange and the
Between two flanges, fixing piece is circumferentially arranged in first flange and second flange and the two is locked；The sealing element packet
Include first seal, second seal and third sealing element；The end face of the first flange and the junction of lug boss offer
For the first slot that first seal is placed, offers on the periphery wall of the lug boss and put for second seal and third sealing element
The second slot for setting and the third slot placed for locating part are located at the position that first seal offsets in second flange and offer for the
The 4th slot that one sealing element is placed；The width of the third slot is slightly larger than the width of locating part, the locating part and the third
Sealing element offsets；The groove face of first slot and the 4th slot close to flange outer ring is the first inclined-plane for being inclined outwardly expansion；It is described
Second slot is the second inclined-plane for being inclined outwardly expansion close to the groove face of first flange；Second slot is connected and with third slot
The depth of three slots is slightly larger than the depth of the second slot.
By using above-mentioned technical proposal, since third slot is more slightly wider than the second slot, locating part is close by second in the second slot
Sealing and third sealing element are limited, and when high temperature fluid is through piping, extruding are generated to locating part, since third slot is than limiting
Position part is slightly wider, and locating part be displaced to third sealing element and generates extruding to it, and deformation occurs after third sealing element is squeezed
Both ends are respectively held against recessed portion and lug boss and generate first of sealing to first flange and second flange；Third sealing element is squeezed
Active force is generated to the second seal of its setting that offsets afterwards, both ends are divided so that deformation occurs after so that second seal is squeezed
Recessed portion and lug boss are not resisted, and second sealing is generated to first flange and second flange；Since the first slot is provided with first tiltedly
Face, the 4th slot is provided with third inclined-plane, the first inclined-plane and third inclined-plane and the end of first seal offsets, and works as first seal
When being under pressure, end is squeezed to the first inclined-plane and third inclined-plane to close to first flange and second flange generation third road
Envelope.By being provided with the sealing element of multiple tracks, the leakproofness of flange is enhanced.First seal, second seal and third sealing
Part uses the sealing element of high temperature high voltage resistant material, and flange is made to have high-temperature-resistant high-pressure-resistant and fireproof function.
Be further arranged to: the third sealing element is the upper flexible sealing plate and annular lower flexible sealing for including annular
Plate and dowel, the upper flexible sealing plate is coaxial with lower flexible sealing plate and interval setting, the dowel fix company
Flexible sealing plate and lower flexible sealing plate are connected, the cross sectional shape of the dowel is V word of the opening towards upper sealing panel axis
Type.
By using above-mentioned technical proposal, when high temperature fluid is through piping, divided ring generates extruding, thus divided ring pair
Third sealing element generates extruding, and the dowel generation compressive deformation of its V-shape leads active force when third sealing element is squeezed
To first flange lug boss and second flange recessed portion and make upper flexible sealing plate and lower flexible sealing plate by lug boss and
Recessed portion resists, so that third sealing element be made to be sealed the connection gap between first flange and second flange.
Be further arranged to: the third sealing element is equipped with the evenly distributed dowel in multiple intervals.
By using above-mentioned technical proposal, multiple dowels, which are arranged, keeps third seal loading more uniform, and pressure is led
Sealing effect to the inner sidewall of recessed portion is more preferable.
Be further arranged to: the first seal is arc-shaped with the place of offseting of the first slot and the 4th slot.
By using above-mentioned technical proposal, arc-shaped contact portion and the first inclined-plane and third inclined-plane of first seal offset
Linear sealing is formed, when pressure is higher, arc-shaped contact portion is more adjacent to the first inclined-plane and third inclined-plane, then sealing effect is better.
Be further arranged to: the one side on the second inclined-plane of the second seal direction is taper compatible with the second inclined-plane
Contact surface.
By using above-mentioned technical proposal, when extruding of the third sealing element by divided ring, can also be generated second seal
It squeezes, since the second inclined-plane and conical contact surface construction are directed towards the inner sidewall of the recessed portion of second flange, what second seal was received
Active force is oriented to the inner sidewall of recessed portion, so that it is further close to carry out the connection gap between first flange and second flange
Envelope.
Be further arranged to: the locating part is divided ring.
By using above-mentioned technical proposal, divided ring have it is easy for installation, to the second seal and third in the second slot
The effect that sealing element is limited.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this kind of embodiment；
Fig. 2 is the enlarged diagram in Fig. 1 at A；
Fig. 3 is the enlarged diagram in Fig. 1 at B；
In figure: 1, first flange；101, lug boss；2, second flange；201, recessed portion；3, first seal；301, circle
Arc-shaped contact part；4, second seal；401, conical contact surface construction；5, third sealing element；501, upper flexible sealing plate；502, soft under
Property sealing plate；503, dowel；6, divided ring；7, the first slot；701, the first inclined-plane；8, the second slot；801, the second inclined-plane；9,
Third slot；10, the 4th slot；1001, third inclined-plane.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, practical to this in order to which the technical solution of the utility model is more clearly understood
It is novel to be described in further detail.The direction being previously mentioned and position term, for example, "upper", "lower", "front", "rear", " left side ", "
The right side ", "inner", "outside" etc. are only direction or position with reference to attached drawing, and therefore, the direction and position term used is to illustrate
And understand the utility model, it should be understood that specific embodiment described herein only to explain the utility model, is not used to
Limit the utility model.
Referring to figs. 1 to Fig. 3, the utility model provides a kind of high temperature and pressure fire-type flange sealing structure, including the first method
The end face axial of orchid 1, second flange 2, sealing element, fixing piece and locating part, first flange 1 is equipped with lug boss 101, second flange
2 end face is equipped with the recessed portion 201 plugged for lug boss 101, and sealing element is arranged between first flange 1 and second flange 2, Gu
Determine part to be circumferentially arranged in first flange 1 and second flange 2 and the two is locked, the sealing element includes the first sealing
Part 3, second seal 4 and third sealing element 5.
The end face of the first flange 1 and the junction of lug boss 101 offer the first slot placed for first seal 3
7, the second slot 8 for second seal 4 and the placement of third sealing element 5 is offered on the periphery wall of the lug boss 101 and for limit
The third slot 9 that position part is placed is located at the position that first seal 3 offsets in second flange 2 and offers and places for first seal 3
The 4th slot 10.
The width of the third slot 9 is slightly larger than the width of locating part, is displaced when being squeezed for locating part, the limit
Position part offsets with the third sealing element 5, and locating part is squeezed when being subjected to displacement and squeezes third sealing element 5.
The groove face of first slot 7 and the 4th slot 10 close to flange outer ring is the first inclined-plane 701 for being inclined outwardly expansion.
Second slot 8 is the second inclined-plane 801 for being inclined outwardly expansion close to the groove face of first flange 1.
Second slot 8 is connected with third slot 9 and the depth of third slot 9 is slightly larger than the depth of the second slot 8, works as locating part
When being placed into third slot 9, second seal 4 and third sealing element 5 are limited in the second slot 8.
The third sealing element 5 be include annular upper flexible sealing plate 501 and annular lower flexible sealing plate 502 and
Dowel 503, the upper flexible sealing plate 501 is coaxial with lower flexible sealing plate 502 and interval is arranged, the dowel 503
It is fixedly connected with flexible sealing plate 501 and lower flexible sealing plate 502, the cross sectional shape of the dowel 503 is to be open towards upper
The V-shape of plate axis is sealed, the third sealing element 5 is equipped with the evenly distributed dowel 503 in multiple intervals.
The first seal 3 is arc-shaped with the place of offseting of the first slot 7 and the 4th slot 10.
The one side on the second seal 4 towards the second inclined-plane 801 is conical contact surface construction compatible with the second inclined-plane 801
401。
The locating part is divided ring 6, and the fixing piece is stud and nut.
Preferably, first seal 3 uses metal gasket, and second seal 4 uses high-temperature molding Graphite pad, and third is close
Sealing 5 uses high-temperature composite gasket, and the gasket of these three materials has high temperature resistant, high pressure resistant and fireproof effect.
Specifically, first seal 3 is placed on the first slot 7 and the 4th slot when first flange 1 and second flange 2 assemble
In 10, second seal 4 is placed in the second slot 8 and by the of the conical contact surface construction of second seal 4 401 and the second slot 8
Two inclined-planes 801 offset, and third sealing element 5 is placed in the second slot 8 and is offseted with second seal 4, after installing sealing element
Divided ring 6 is placed on to the outer end face of third sealing element 5, sealing element is fixed in divided ring 6, then will with stud and nut
First flange 1 and second flange 2 are connected and fixed.
When high temperature fluid is through piping, divided ring 6 generates extruding, squeezes so that divided ring 6 generates third sealing element 5
Pressure, compressive deformation occurs for the dowel 503 of its V-shape by active force guiding first flange 1 when third sealing element 5 is squeezed
Lug boss 101 and the recessed portion of second flange 2 201 simultaneously make flexible sealing plate 501 and lower flexible sealing plate 502 by lug boss
101 and recessed portion 201 resist, thus make third sealing element 5 by between first flange 1 and second flange 2 connection gap carry out
Sealing.Can also extruding be generated to second seal 4 when extruding of the third sealing element 5 by divided ring 6, due to the second inclined-plane 801
The inner sidewall of the recessed portion 201 of second flange 2 is directed towards with conical contact surface construction 401, the active force guiding that second seal 4 is received
The inner sidewall of recessed portion 201, so that the connection gap between first flange 1 and second flange 2 be made further to be sealed.First
The arc-shaped contact portion 301 of sealing element 3 and the first inclined-plane 701 and third inclined-plane 1001 offset to form linear sealing, when pressure is higher,
Arc-shaped contact portion 301 is more adjacent to the first inclined-plane 701 and third inclined-plane 1001, then sealing effect is better.
Above embodiments are only the explanation to the utility model, are not limitations of the present invention, for this
For the those of ordinary skill in field, without departing from the principle of this utility model, several deformations can also be made and changed
Into these are all within the protection scope of the present invention, therefore the protection scope of the utility model patent should be subject to the claims.
Claims (6)
1. a kind of high temperature and pressure fire-type flange sealing structure, including first flange, second flange, sealing element and fixing piece, the
The end face axial of one flange is equipped with lug boss, and the end face of second flange is equipped with the recessed portion plugged for lug boss, sealing element setting
Between first flange and second flange, fixing piece is circumferentially arranged in first flange and second flange and locks the two solid
It is fixed, it is characterised in that:
It further include locating part；The sealing element includes first seal, second seal and third sealing element；
The end face of the first flange and the junction of lug boss offer the first slot placed for first seal, the protrusion
The third slot for offering the second slot for second seal and the placement of third sealing element on the periphery wall in portion and being placed for locating part,
It is located at the position that first seal offsets in second flange and offers the 4th slot placed for first seal；
The width of the third slot is slightly larger than the width of locating part, and the locating part offsets with the third sealing element；
The groove face of first slot and the 4th slot close to flange outer ring is the first inclined-plane for being inclined outwardly expansion；
Second slot is the second inclined-plane for being inclined outwardly expansion close to the groove face of first flange；
Second slot is connected with third slot and the depth of third slot is slightly larger than the depth of the second slot.
2. a kind of high temperature and pressure fire-type flange sealing structure according to claim 1, it is characterised in that: the third is close
Sealing be include annular upper flexible sealing plate and annular lower flexible sealing plate and dowel, the upper flexible sealing plate with
Lower flexible sealing plate is coaxial and interval setting, the dowel are fixedly connected with flexible sealing plate and lower flexible sealing plate, institute
The cross sectional shape for stating dowel is V-shape of the opening towards upper sealing panel axis.
3. a kind of high temperature and pressure fire-type flange sealing structure according to claim 2, it is characterised in that: the third is close
Sealing is equipped with the evenly distributed dowel in multiple intervals.
4. a kind of high temperature and pressure fire-type flange sealing structure according to claim 1, it is characterised in that: described first is close
Sealing is arc-shaped with the place of offseting of the first slot and the 4th slot.
5. a kind of high temperature and pressure fire-type flange sealing structure according to claim 1, it is characterised in that: described second is close
The one side on sealing towards the second inclined-plane is conical contact surface construction compatible with the second inclined-plane.
6. a kind of high temperature and pressure fire-type flange sealing structure according to claim 1, it is characterised in that: the locating part
For divided ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821620588.0U CN209041815U (en) | 2018-09-30 | 2018-09-30 | A kind of high temperature and pressure fire-type flange sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821620588.0U CN209041815U (en) | 2018-09-30 | 2018-09-30 | A kind of high temperature and pressure fire-type flange sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041815U true CN209041815U (en) | 2019-06-28 |
Family
ID=67035195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821620588.0U Active CN209041815U (en) | 2018-09-30 | 2018-09-30 | A kind of high temperature and pressure fire-type flange sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031923A (en) * | 2020-08-07 | 2020-12-04 | 中国北方发动机研究所(天津) | Two-stage supercharging system connection mode |
| CN115930660A (en) * | 2023-02-21 | 2023-04-07 | 广东览讯科技开发有限公司 | Pipeline fastening connecting piece, heat exchanger and closed cooling tower |
-
2018
- 2018-09-30 CN CN201821620588.0U patent/CN209041815U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031923A (en) * | 2020-08-07 | 2020-12-04 | 中国北方发动机研究所(天津) | Two-stage supercharging system connection mode |
| CN115930660A (en) * | 2023-02-21 | 2023-04-07 | 广东览讯科技开发有限公司 | Pipeline fastening connecting piece, heat exchanger and closed cooling tower |
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