CN102518890A - Seal gasket for flange face sealing - Google Patents
Seal gasket for flange face sealing Download PDFInfo
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- CN102518890A CN102518890A CN2011104274948A CN201110427494A CN102518890A CN 102518890 A CN102518890 A CN 102518890A CN 2011104274948 A CN2011104274948 A CN 2011104274948A CN 201110427494 A CN201110427494 A CN 201110427494A CN 102518890 A CN102518890 A CN 102518890A
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- ring
- metal
- seal
- nonmetal
- axial thickness
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Abstract
The invention relates to an inner metal ring, an outer metal ring and a nonmetal seal ring inlaid between the inner metal ring and the outer metal ring. The axial thickness of the inner metal ring is smaller than that of the nonmetal seal ring, and the axial thickness of the outer metal ring is smaller than or equal to that of the nonmetal seal ring. When the seal gasket is mounted, sealing is achieved through face contact between the nonmetal seal ring and a flange. When pressure of a seal medium is increased, the inner metal ring can be stressed to radially expand to extrude the nonmetal seal ring, so that sealing specific pressure of the nonmetal seal ring and the flange face is increased, and sealing is better. In addition, when the pressure of the seal medium is decreased, the inner metal ring shrinks, and the sealing specific pressure restores. Therefore, the seal gasket is higher in resistance to pressure and temperature fluctuation, better in sealing flexibility, and less prone to strain fatigue and creep relaxation.
Description
Technical field
The present invention relates to a kind of gasket seal that is used for the flanged surface sealing
Background technique
In the existing technology; The gasket seal that the flanged surface sealing is used generally all is SW with outside ring or non-metallic flat gasket; The two all is to rely on bolt between the flange to lock the necessary seal pressure of pad is provided; Therefore these two kinds of pads are not strong to the defensive ability/resistance ability of pressure and temperature fluctuation, occur phenomenons such as strain fatigue and creep relaxation easily, sealing effect descended or inefficacy
Summary of the invention
technical problem to be solved by this invention is the deficiency that overcomes existing technology, and the gasket seal that a kind of resisting temperature, pressure surge ability are strong, sealability better is used for the flanged surface sealing is provided.
For solving above technical problem, the present invention takes following technological scheme:
a kind of gasket seal that is used for the flanged surface sealing; Comprise ring in the metal, be around in the metal outer shroud of ring periphery in the said metal and be embedded the nonmetal seal ring between the ring and said metal outer shroud in said metal; According to the present invention; The axial thickness of the axial thickness＜said nonmetal seal ring of ring in the said metal, the axial thickness of the axial thickness of said metal outer shroud≤said nonmetal seal ring.
preferably, the axial thickness of the axial thickness＜said metal outer shroud of ring in the said metal.
preferably, the top of said metal outer shroud and/or bottom are forming step near a side of nonmetal seal ring.The shape of step is provided with specifically and can decides according to the shape of the groove on the flange, so that step can fit to good with cell wall.
preferably, the radial section of ring is square in the said metal.
preferably, the material of ring and said metal outer shroud is selected from a kind of in carbon steel, stainless steel, copper, aluminium, monel metal, the severe nickel of English and the titanium in the said metal.
preferably, the material of said nonmetal seal ring is selected from a kind of in graphite, mica and the teflon.
Because the enforcement of above technological scheme, the present invention compared with prior art has following advantage:
gasket seal of the present invention is designed to the axial thickness that encircles in the metal littler than the axial thickness of nonmetal seal ring, and when installing, gasket seal mainly relies on nonmetal seal ring to contact with face between the flange and realizes sealing; With the pressure or the increase in temperature of the medium that gasket seal sealed, the ring pressurized produces radial dilatation and pushes nonmetal seal ring in the metal, thereby can improve the seal pressure of nonmetal seal ring and flanged surface, makes better tightness; Pressure or temperature with sealing medium reduce, and ring produces radial contraction in the metal, and the flanged surface seal pressure descends thereupon, is returned to original state.Therefore gasket seal of the present invention has the self-tightening effect, can regulate seal pressure according to pressure or temperature variation, and is better to the resistivity flexibility stronger, sealing of pressure and temperature fluctuation, is not easy to take place the phenomenon of strain fatigue and creep relaxation.
Description of drawings
Below in conjunction with accompanying drawing and concrete mode of execution the present invention is done further detailed explanation:
Fig. 1 is the plan view of gasket seal of the present invention;
Fig. 2 is the radial cross-section of embodiment 1 gasket seal;
Fig. 3 is the installation form schematic representation of embodiment 1 gasket seal;
Fig. 4 is the enlarged view at A position among Fig. 3;
Fig. 5 is the radial cross-section of embodiment 2 gasket seal;
Fig. 6 is the installation form schematic representation of embodiment 2 gasket seal;
Fig. 7 is the enlarged view at B position among Fig. 6;
wherein: 1, ring in the metal; 2, nonmetal seal ring; 3, metal outer shroud; 30, step; 4, flange.
Embodiment
are done further detailed explanation below in conjunction with concrete embodiment to the present invention, but are not limited to these embodiments.
referring to Fig. 1 to Fig. 4, according to the gasket seal of present embodiment by encircle 1 in the metal, metal outer shroud 3 and be embedded that the nonmetal seal ring 2 between the ring 1 and metal outer shroud 3 constitutes in metal.Wherein ring 1 selects for use the same metal of material to be made with metal outer shroud 3 in the metal; Available material has carbon steel, stainless steel, copper, aluminium, monel metal, the severe nickel of English and titanium etc., and the material of nonmetal seal ring 2 can be graphite, mica or teflon.When making the present embodiment gasket seal, nonmetal seal ring 2 can be in many ways (as knock etc.) embeds in the metal between the ring 1 and metal outer shroud 3, make encircle in nonmetal seal ring 2 and the metal 1 and metal outer shroud 3 between close proximity or offset.The axial thickness of the axial thickness＜nonmetal seal ring 2 of the axial thickness＜metal outer shroud 3 of ring 1 in the metal, the radial section of ring 1 is square in the metal, and the top of metal outer shroud 3 or bottom form step 30 in the side near nonmetal seal ring 2.The sealing pad is fit to be installed between two flanges 4, and the shape of step 30 can design according to the groove of flange facing, so that step 30 can be stuck in the groove, fits with cell wall and bottom land or press close to, improves the stability of fixing seal pad.
When
present embodiment gasket seal is installed; Lock through flange; Nonmetal seal ring 2 is compressed; To almost in the same plane with metal outer shroud 3, and ring 1 mainly plays the effect of supporting nonmetal seal ring 2 in the metal, and gasket seal mainly relies on nonmetal seal ring 2 and metal outer shroud 3 to contact with face between the flange 4 and realizes sealing; With the pressure or the increase in temperature of the medium that gasket seal sealed, ring 1 pressurized produces radial dilatation and pushes nonmetal seal ring 2 in the metal, has improved the seal pressure of nonmetal seal ring 2 and flanged surface, makes better tightness; And reduce with the pressure or the temperature of sealing medium, ring 1 produces radial contraction in the metal, and the flanged surface seal pressure descends thereupon, is returned to original state again.Therefore make the present embodiment gasket seal have the self-tightening effect, can regulate seal pressure according to pressure or temperature variation, better to the resistivity flexibility stronger, sealing of pressure and temperature fluctuation, be not easy to take place the phenomenon of strain fatigue and creep relaxation.
Gasket seal of
present embodiment and embodiment 1 gasket seal structure material homogeneous phase are together; Difference is: the upper and lower of the metal outer shroud 3 of present embodiment gasket seal all forms step 30 in the side near nonmetal seal ring 2; This is to be provided with according to the situation that two flanged surfaces up and down all have groove; Make step 30 can be stuck in the groove of two flanged surfaces like this, no matter be when installing or when variation in pressure, can both improve gasket seal fixation stability property.
More than the present invention has been done detailed description; Its purpose is to let the personage that is familiar with this art can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention
Claims (6)
1. one kind is used for the gasket seal that flanged surface seals; Comprise ring (1) in the metal, be around in the metal outer shroud (3) of ring (1) periphery in the said metal and be embedded the nonmetal seal ring (2) that in said metal, encircles between (1) and the said metal outer shroud (3); It is characterized in that: the axial thickness of the axial thickness＜said nonmetal seal ring (2) of ring (1) in the said metal, the axial thickness of the axial thickness of said metal outer shroud (3)≤said nonmetal seal ring (2).
2. gasket seal according to claim 1 is characterized in that: the axial thickness of the axial thickness＜said metal outer shroud (3) of ring (1) in the said metal.
3. gasket seal according to claim 1 is characterized in that: the top of said metal outer shroud (3) and/or bottom form step (30) in the side near said nonmetal seal ring (2).
4. gasket seal according to claim 1 is characterized in that: the radial section of ring (1) is square in the said metal.
5. gasket seal according to claim 1 is characterized in that: the material of ring (1) and said metal outer shroud (3) is selected from a kind of in carbon steel, stainless steel, copper, aluminium, monel metal, the severe nickel of English and the titanium in the said metal.
6. gasket seal according to claim 1 is characterized in that: the material of said nonmetal seal ring (2) is selected from a kind of in graphite, mica and the teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104274948A CN102518890A (en) | 2011-12-20 | 2011-12-20 | Seal gasket for flange face sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104274948A CN102518890A (en) | 2011-12-20 | 2011-12-20 | Seal gasket for flange face sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518890A true CN102518890A (en) | 2012-06-27 |
Family
ID=46289917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104274948A Pending CN102518890A (en) | 2011-12-20 | 2011-12-20 | Seal gasket for flange face sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518890A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121439A (en) * | 2014-07-14 | 2014-10-29 | 洛阳能源密封件有限公司 | Soft-hard combined sealing device |
| CN108680026A (en) * | 2018-08-31 | 2018-10-19 | 江阴中南重工有限公司 | The stove gate device of high pressure combustion freezing of a furnace |
| CN112524365A (en) * | 2020-12-17 | 2021-03-19 | 中国成达工程有限公司 | Combined sealing gasket suitable for various working conditions |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017294A (en) * | 1962-10-25 | 1966-01-19 | Henry Joseph Quinson | Sealing gaskets |
| FR2229297A5 (en) * | 1973-05-11 | 1974-12-06 | Kempchen & Co Gmbh | Gasket with three concentric rings - different materials of rings ensure adequate sealing pressure on middle ring |
| US4673187A (en) * | 1985-07-09 | 1987-06-16 | Fluorocarbon Company | Bimetallic spiral wound gasket |
| EP0354272A1 (en) * | 1987-07-27 | 1990-02-14 | EUROPEAN SUPPLIES & SERVICES B.V. | Flush packing |
| CN2261533Y (en) * | 1996-10-23 | 1997-09-03 | 耿雪山 | Combined washer |
| CN1828096A (en) * | 2006-04-06 | 2006-09-06 | 马志刚 | Special-shaped packing seal gasket and manufacturing method thereof |
| JP2007232133A (en) * | 2006-03-02 | 2007-09-13 | Nippon Valqua Ind Ltd | Spiral gasket |
| CN201032034Y (en) * | 2007-06-02 | 2008-03-05 | 安徽中科智能高技术有限责任公司 | Combined seal member for pipeline sealing |
| CN102094970A (en) * | 2011-02-01 | 2011-06-15 | 宁波天生密封件有限公司 | Sealing gasket capable of controlling range of stress relaxation |
| CN202392325U (en) * | 2011-12-20 | 2012-08-22 | 苏州宝骅机械技术有限公司 | Sealing gasket used for sealing flange face |
-
2011
- 2011-12-20 CN CN2011104274948A patent/CN102518890A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017294A (en) * | 1962-10-25 | 1966-01-19 | Henry Joseph Quinson | Sealing gaskets |
| FR2229297A5 (en) * | 1973-05-11 | 1974-12-06 | Kempchen & Co Gmbh | Gasket with three concentric rings - different materials of rings ensure adequate sealing pressure on middle ring |
| US4673187A (en) * | 1985-07-09 | 1987-06-16 | Fluorocarbon Company | Bimetallic spiral wound gasket |
| EP0354272A1 (en) * | 1987-07-27 | 1990-02-14 | EUROPEAN SUPPLIES & SERVICES B.V. | Flush packing |
| CN2261533Y (en) * | 1996-10-23 | 1997-09-03 | 耿雪山 | Combined washer |
| JP2007232133A (en) * | 2006-03-02 | 2007-09-13 | Nippon Valqua Ind Ltd | Spiral gasket |
| CN1828096A (en) * | 2006-04-06 | 2006-09-06 | 马志刚 | Special-shaped packing seal gasket and manufacturing method thereof |
| CN201032034Y (en) * | 2007-06-02 | 2008-03-05 | 安徽中科智能高技术有限责任公司 | Combined seal member for pipeline sealing |
| CN102094970A (en) * | 2011-02-01 | 2011-06-15 | 宁波天生密封件有限公司 | Sealing gasket capable of controlling range of stress relaxation |
| CN202392325U (en) * | 2011-12-20 | 2012-08-22 | 苏州宝骅机械技术有限公司 | Sealing gasket used for sealing flange face |
Non-Patent Citations (1)
| Title |
|---|
| 秦殿生: "水泵密封填料", 《技术与市场》, no. 12, 31 December 2002 (2002-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121439A (en) * | 2014-07-14 | 2014-10-29 | 洛阳能源密封件有限公司 | Soft-hard combined sealing device |
| CN108680026A (en) * | 2018-08-31 | 2018-10-19 | 江阴中南重工有限公司 | The stove gate device of high pressure combustion freezing of a furnace |
| CN112524365A (en) * | 2020-12-17 | 2021-03-19 | 中国成达工程有限公司 | Combined sealing gasket suitable for various working conditions |
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Application publication date: 20120627 |