CN205446701U - A seal assembly and seal structure for axial seal - Google Patents
A seal assembly and seal structure for axial seal Download PDFInfo
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- CN205446701U CN205446701U CN201521103948.6U CN201521103948U CN205446701U CN 205446701 U CN205446701 U CN 205446701U CN 201521103948 U CN201521103948 U CN 201521103948U CN 205446701 U CN205446701 U CN 205446701U
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- sealing
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Abstract
The utility model discloses a seal assembly and seal structure for axial seal, seal assembly includes: the flange, the annular groove, its formed at in the relative sealing surface of flange, and seal assembly, it is inserted in the annular groove, seal assembly include a cross -section be the C type first sealing ring and the parallel cross -section of first sealing ring is triangle -shaped's second sealing ring, places cross -section between first sealing ring and the second sealing ring is the third sealing ring of O type. Seal assembly is applicable to the seal assembly who is used for axial seal of superhigh pressure structure or equipment, belongs to half self -energized seal structure. Adopt the structure of " triangle type pad + O type circle + C type ring ", guaranteeing under safe and reliable, the good sealed prerequisite reduction equipment or structure construction cost.
Description
Technical field
This utility model relates to the sealing structure of a kind of axial seal.More specifically, this utility model relates to a kind of black box be applicable to supertension structure or equipment and has the sealing structure of this black box.
Background technology
In recent years, along with developing rapidly of the industry such as petrochemical industry, nuclear energy, electric power, Aero-Space, superhigh pressure sealing structure is proposed requirement more, that update, as increasing in sealed diameter, require structure easy accessibility, for inflammable and explosive medium more reliable sealing property.
As required, supertension will come across in the middle of ground-based simulation equipment more and more widely, such as structures such as pressure vessel, pressure pipeline and Flange joint.For this kind equipment or the design of structure, in addition to the force-bearing situation taking into full account main body, also should pay close attention to seal structural behaviour the most safe and reliable.
For different pressure ratings, can be with forced action type, half self-tightening type or self-fastening sealing structure.But, during for supertension operating mode, forced action type seals structure and faces two big shortcomings: sealing property is difficult to ensure that, cost rolls up.
Utility model content
A purpose of the present utility model is to solve at least the above, and provides the advantage that at least will be described later.
This utility model, it is also an object that provide a kind of black box for axial seal being applicable to supertension structure or equipment, belongs to half self-fastening sealing structure.Described black box uses the structure of " △ type pad+O+C-shaped ring ", on the premise of ensureing safe and reliable, excellent sealing, reduces equipment or structure building cost.
In order to realize according to these purposes of the present utility model and further advantage, it is provided that a kind of black box for axial seal, comprising: flange；
Annular groove, it is formed in the opposing seal surface of described flange；
And black box, it is inserted in described annular groove, described black box includes the first sealing ring that a cross section is C-shaped, the second sealing ring that a cross section juxtaposed with described first sealing ring is triangular in shape, the 3rd sealing ring that cross section is O type being placed between described first sealing ring and the second sealing ring.
Preferably, described annular groove is arranged on one of them sealing surfaces of described flange.
Preferably, the base of described first sealing ring abuts the base of described second sealing ring；Described 3rd sealing ring is arranged between described first sealing ring and the second sealing ring in the space formed.
Preferably, described first sealing ring is arranged on the interior position away from axle center of described annular groove, and described second sealing ring is the position in close axle center in being arranged on described annular groove.
Preferably, shirt rim portion is extended to described second sealing ring in the base of described first sealing ring.
Preferably, described flange is bolted.
This utility model additionally provides a kind of sealing structure including the described black box for axial seal, comprising:
Flange, it is bolted, and one end of described flange is sealedly connected with a thick-wall cylinder；
Annular groove, it is formed in the opposing seal surface of described flange；
Black box, it is inserted in described annular groove, described black box includes the first sealing ring that a cross section is C-shaped, the second sealing ring that a cross section juxtaposed with described first sealing ring is triangular in shape, the 3rd sealing ring that cross section is O type being placed between described first sealing ring and the second sealing ring.
Preferably, described thick-wall cylinder has an inner chamber；Described flange is connected to the opening of described thick-wall cylinder by welding manner thus seals described inner chamber.
Preferably, described thick-wall cylinder has an inner chamber；Described flange is connected to the opening of described thick-wall cylinder by welding manner thus seals described flange and include that described groove is disposed therein on the sealing surfaces of a described ring flange by bolted two ring flanges.
Preferably, described thick-wall cylinder has an inner chamber；Described flange is connected to the opening of described thick-wall cylinder by welding manner thus seals described flange and include that described groove is arranged on the sealing surfaces of described ring flange by a bolted ring flange and a blind plate.
This utility model at least includes following beneficial effect: the black box for axial seal described in the utility model is through simulation calculating, structure design, Stress Check and fatigue assessment, take into full account described black box and flange and contact nonlinear, it is thus achieved that described black box stress distribution situation under intrinsic pressure and bolt pretightening effect.
First, described black box ensure that equipment or the intensity of structure self, rigidity and anti-fatigue performance.
Secondly, described black box carrying out nonlinear analysis, simulation simultaneously calculates the force-bearing situation under low pressure operating mode, middle pressure operating mode, high pressure operating mode and supertension operating mode.Described black box is under service load, and most areas is in elastic deformation, thus ensure that and performance is used for multiple times；Described black box enters yield situation in the narrowest region of upper and lower surface, has played sealing effectiveness.
Black box for axial seal described in the utility model, under low pressure operating mode, is mainly played sealing property by the 3rd sealing ring that cross section is O type；Under middle pressure operating mode, mainly played sealing property by the second sealing ring that cross section is c-type；Under high pressure and supertension operating mode, mainly played sealing property by the first sealing ring that cross section is △ type；This combination sealing assembly belongs to half self-energized seal category, reduces bolt pretightening to a great extent, it is ensured that sealing reliability.Meanwhile, the construction cost of structure or equipment is reduced to a great extent.
Part is embodied by further advantage of the present utility model, target and feature by description below, and part also will be by being understood by the person skilled in the art research of the present utility model and practice.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the black box for axial seal described in the utility model；
Fig. 2 is the cross section structure schematic diagram of sealing structure described in the utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
Should be appreciated that used herein such as " have ", other element one or more or the existence of a combination thereof or interpolation do not allotted in " comprising " and " including " term.
As depicted in figs. 1 and 2, this utility model provides a kind of black box for axial seal, comprising: flange 100；Described flange 100 is such as arranged on the port of export of accumulator tail pipe；For sealing high pressure compressed gas or liquid.
Annular groove 101, it is formed in the opposing seal surface of described flange 100；
And black box 200, it is inserted in described annular groove 101, described black box 200 includes the first sealing ring 201 that a cross section is C-shaped, second sealing ring 202 triangular in shape with the described first juxtaposed cross section of sealing ring 201, is placed on the 3rd sealing ring 203 that cross section is O type between described first sealing ring 201 and the second sealing ring 202.Under low pressure operating mode, mainly played sealing property by the 3rd sealing ring that cross section is O type；Under middle pressure operating mode, mainly played sealing property by the second sealing ring that cross section is c-type；Under high pressure and supertension operating mode, mainly played sealing property by the first sealing ring that cross section is △ type.After making the sealing gasket in flange connector into black box described in the utility model, described Flange joint may be used in the sealing structure under multiple pressure condition, and without selecting different flange sealing structure according to different pressures operating mode, cost-effective while also ensure that stable sealing effectiveness.
Wherein in an embodiment, as in figure 2 it is shown, described annular groove 101 is arranged on one of them sealing surfaces of described flange 100.Described flange 100 such as includes that a ring flange 102 and the blind plate 103 connected by bolt 400 are formed.Certain described annular groove can also be formed with sealing surfaces another on, it is also possible to be to be provided with annular groove on two sealing surfaces.
Wherein in an embodiment, as in figure 2 it is shown, the base of described first sealing ring 201 abuts the base of described second sealing ring 202；Described 3rd sealing ring 203 is arranged between described first sealing ring 201 and the second sealing ring 202 in the space formed.Described second sealing ring is the most semicircle, and the base of described first sealing ring 201 is tangent in described semicircle.Thus can form two spaces between the first sealing ring 201 and the second sealing ring 202, described 3rd sealing ring 203 is configured to be contained in described space, and described 3rd sealing ring 203 abuts described first sealing ring 201 and the second sealing ring 202.Thus, it is possible to ensure the stability of black box 200, to use different pressures operating mode.
Wherein in an embodiment, as in figure 2 it is shown, described first sealing ring 201 is arranged on the described interior position away from axle center of annular groove 101, described second sealing ring 202 is the position in close axle center in being arranged on described annular groove 101.It is to say, described first sealing ring 201 has the diameter of maximum so it is placed on outmost turns, described second sealing ring 202 has the diameter of minimum and is placed on innermost circle；Two described 3rd sealing rings 203 are placed between the two, are used for providing most stable of sealing effectiveness.
Wherein in an embodiment, as in figure 2 it is shown, shirt rim portion 2011 is extended to described second sealing ring 202 in the base of described first sealing ring 201.Described shirt rim portion 2011 is for improving the sealing property of black box.
Wherein in an embodiment, as in figure 2 it is shown, described flange 100 is connected by bolt 400-.
As in figure 2 it is shown, this utility model additionally provides a kind of sealing structure including the described black box for axial seal, comprising:
Flange 100, it is connected by bolt 400, and one end of described flange 100 is sealedly connected with a thick-wall cylinder 500；
Annular groove 101, it is formed in the opposing seal surface of described flange 100；
Black box 200, it is inserted in described annular groove 101, described black box 200 includes the first sealing ring 201 that a cross section is C-shaped, second sealing ring 202 triangular in shape with the described first juxtaposed cross section of sealing ring 201, is placed on the 3rd sealing ring 203 that cross section is O type between described first sealing ring 201 and the second sealing ring 202.
Wherein in an embodiment, as in figure 2 it is shown, described thick-wall cylinder 500 has an inner chamber 501；Described flange 100 is connected to the opening of described thick-wall cylinder 500 by welding manner thus seals described inner chamber 501.
Wherein in an embodiment, described flange 100 includes two ring flanges connected by bolt 400, and described groove 101 is disposed therein on the sealing surfaces of a described ring flange.
Wherein in an embodiment, as in figure 2 it is shown, described flange includes that, by a bolted ring flange 102 and a blind plate 103, described annular groove 101 is arranged on the sealing surfaces of described ring flange 102.
Although embodiment of the present utility model is disclosed as above, but it is not restricted in description and embodiment listed utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, this utility model is not limited to specific details and shown here as the legend with description.
Claims (10)
1. the black box for axial seal, it is characterised in that including:
Flange；
Annular groove, it is formed in the opposing seal surface of described flange；
Black box, it is inserted in described annular groove, described black box includes the first sealing ring that a cross section is C-shaped, the second sealing ring that a cross section juxtaposed with described first sealing ring is triangular in shape, the 3rd sealing ring that cross section is O type being placed between described first sealing ring and the second sealing ring.
2. the black box for axial seal as claimed in claim 1, it is characterised in that described annular groove is arranged on one of them sealing surfaces of described flange.
3. the black box for axial seal as claimed in claim 2, it is characterised in that the base of described first sealing ring abuts the base of described second sealing ring；Described 3rd sealing ring is arranged between described first sealing ring and the second sealing ring in the space formed.
4. the black box for axial seal as claimed in claim 3, it is characterised in that described first sealing ring is arranged on the interior position away from axle center of described annular groove, and described second sealing ring is the position in close axle center in being arranged on described annular groove.
5. the black box for axial seal as claimed in claim 4, it is characterised in that shirt rim portion is extended to described second sealing ring in the base of described first sealing ring.
6. the black box for axial seal as claimed in claim 5, it is characterised in that described flange is bolted.
7. the sealing structure of the black box for axial seal included as described in any one of claim 1-6, it is characterised in that including:
Flange, it is bolted, and one end of described flange is sealedly connected with a thick-wall cylinder；
Annular groove, it is formed in the opposing seal surface of described flange；
Black box, it is inserted in described annular groove, described black box includes the first sealing ring that a cross section is C-shaped, the second sealing ring that a cross section juxtaposed with described first sealing ring is triangular in shape, the 3rd sealing ring that cross section is O type being placed between described first sealing ring and the second sealing ring.
Seal structure the most as claimed in claim 7, it is characterised in that described thick-wall cylinder has an inner chamber；Described flange is connected to the opening of described thick-wall cylinder by welding manner thus seals described inner chamber.
Seal structure the most as claimed in claim 8, it is characterised in that described flange includes that described groove is disposed therein on the sealing surfaces of a described ring flange by bolted two ring flanges.
Seal structure the most as claimed in claim 8, it is characterised in that described flange includes that described groove is arranged on the sealing surfaces of described ring flange by a bolted ring flange and a blind plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103948.6U CN205446701U (en) | 2015-12-25 | 2015-12-25 | A seal assembly and seal structure for axial seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103948.6U CN205446701U (en) | 2015-12-25 | 2015-12-25 | A seal assembly and seal structure for axial seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446701U true CN205446701U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521103948.6U Active CN205446701U (en) | 2015-12-25 | 2015-12-25 | A seal assembly and seal structure for axial seal |
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| Country | Link |
|---|---|
| CN (1) | CN205446701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118259A (en) * | 2019-06-17 | 2019-08-13 | 姜起文 | A kind of contract block formula radial seal ring |
-
2015
- 2015-12-25 CN CN201521103948.6U patent/CN205446701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118259A (en) * | 2019-06-17 | 2019-08-13 | 姜起文 | A kind of contract block formula radial seal ring |
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