CN101387345A - Selftightening compound sealing pad - Google Patents
Selftightening compound sealing pad Download PDFInfo
- Publication number
- CN101387345A CN101387345A CNA2008101684065A CN200810168406A CN101387345A CN 101387345 A CN101387345 A CN 101387345A CN A2008101684065 A CNA2008101684065 A CN A2008101684065A CN 200810168406 A CN200810168406 A CN 200810168406A CN 101387345 A CN101387345 A CN 101387345A
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- China
- Prior art keywords
- sheet metal
- gap
- selftightening
- compound
- inner ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a self-tightening composite sealing gasket, which comprises an annular first metal plate and an annular second metal plate which are laminated to form an annular composite body. A gap is reserved in the composite body; the outer ring edges of the first metal plate and the second metal plate are fixed with each other, and the inner ring edges thereof are also fixed with each other; the inner ring edge or the position close to the inner ring edge of the composite body is provided with a medium access passage, the gap can be only communicated with the outside through the medium access passage, and when a medium comes into the gap through the medium access passage, the gap is expanded. When the gasket works, the gap can be expanded under the action of the pressure of the medium, and the compensation for sealing specific pressure can be realized by the medium transmitted by the pressure so as to achieve the self-tightening sealing effect. In order to realize the function, the self-tightening composite sealing gasket has another structure, wherein an opening is formed between the inner ring edges of the first metal plate and the second metal plate, and the inner ring edges of the first metal plate and the second metal plate are not fixed with each other; and the gap is communicated with the outside only through the opening, and when the medium comes into the gap through the opening, the gap is also expanded.
Description
Technical field
The present invention relates to a kind of gasket seal, relate in particular to a kind of Selftightening compound sealing pad.
Background technique
In the prior art, gasket seal is many to be made with nonmetallic material such as asbestos, rubber, the Composition spacer that perhaps adopts metal and nonmetallic material to make, because the ability that this kind material or sealing configuration meet with stresses is relatively poor, in use for some time, owing to bear the acting in conjunction of pressure and medium temperature, gasket seal is easily aging, tired or lax, sealing variation even lose sealability, flexible when mounted distortion has simultaneously influenced sealing effect.
Summary of the invention
The object of the present invention is to provide a kind of Selftightening compound sealing pad, the ability that this Selftightening compound sealing pad bears pressure is strong, good sealing effect.
In order to reach above purpose, the technical solution used in the present invention is: a kind of Selftightening compound sealing pad, it comprises first sheet metal of ring-type, it also comprises second sheet metal of at least one ring-type, described first sheet metal and described second laminating metal plate form the compound body of ring-type, form the gap between first sheet metal and second sheet metal in the described compound body, the edge, outer ring of described first sheet metal and the edge, outer ring of described second sheet metal fix, the inner ring edge of described first sheet metal and the inner ring edge of described second sheet metal fix, offer at least one medium inlet passage at the inner ring edge of described compound body or near on the position at inner ring edge, described gap only is connected with the external world by described medium inlet passage, after medium entered described gap by described medium inlet passage, it is big that described gap becomes.
Described first sheet metal and described second sheet metal are metal corrugated plate.
Crest portion on crest portion on described first sheet metal and described second sheet metal matches stacked, and the trough portion on trough portion on described first sheet metal and described second sheet metal matches stacked.
A plurality of crest portions on described first sheet metal or described second sheet metal and trough portion form concentric circles.
The upper surface and the lower surface of described compound body are provided with coating.
The material of described coating is one or more the composite in graphite, fiber, teflon, the resin.
Described coating protrudes from 0.1-10 millimeters of described compound body outer surfaces.
The material of described first sheet metal or described second sheet metal is one or more the mixture in carbon steel, stainless steel, copper, aluminium, Monel, the severe nickel of English, the titanium.
The thickness of described first sheet metal or described second sheet metal is 0.1-10 millimeters.
A kind of Selftightening compound sealing pad, it comprises first sheet metal of ring-type, it also comprises second sheet metal of at least one ring-type, described first sheet metal and described second laminating metal plate form the compound body of ring-type, form the gap between first sheet metal and second sheet metal in the described compound body, the edge, outer ring of described first sheet metal and the edge, outer ring of described second sheet metal fix, form opening between the inner ring edge of described first sheet metal and the inner ring edge of described second sheet metal, described gap only is connected with the external world by described opening, after medium entered described gap by described opening, it is big that described gap becomes.
Because the present invention has adopted above technological scheme, its advantage is: after between the flange of pipeline or equipment Selftightening compound sealing pad being installed, when pad is worked, medium in pipeline or the equipment can enter gap between first sheet metal and second sheet metal by medium inlet passage or opening, because the effect of pressure medium makes the gap become big, the sealing pad utilizes the pressure medium transmission to come the external pressure on the gasket seal is compensated, realize the self tightening effect, even gasket seal is after using longer a period of time like this, the ability that still has good sealing effect and bear pressure more by force.
Description of drawings
Plan view (coating is arranged on the pad) when accompanying drawing 1 adopts metal corrugated plate for the present invention;
Accompanying drawing 2 is the cutaway view Amplified image (medium also do not enter medium inlet passage) of accompanying drawing 1 along the A-A direction;
Accompanying drawing 3 adopts metal corrugated plate and the sectional view after medium enters the medium inlet passage (the medium inlet passage is opened on the compound body inner ring edge) for the present invention;
Accompanying drawing 4 adopts metal corrugated plate and the sectional view after medium enters the medium inlet passage (the medium inlet passage is opened near on the compound body inner ring marginal position) for the present invention;
Wherein:
1, first sheet metal; 2, second sheet metal; 3, compound body; 4, gap; 5, medium inlet passage; 6, coating.
Embodiment
Further set forth concrete structure of the present invention and working procedure below in conjunction with accompanying drawing.
Shown in accompanying drawing 1-4, a kind of Selftightening compound sealing pad, it comprises first sheet metal 1 of ring-type, it also comprises second sheet metal 2 of a slice ring-type, the compound body 3 of first sheet metal 1 and second sheet metal, 2 stacked formation ring-types, form gap 4 in the compound body 3 between first sheet metal 1 and second sheet metal 2, the edge, outer ring of first sheet metal 1 welds fixing with the edge, outer ring of second sheet metal 2 mutually, the inner ring edge of first sheet metal 1 welds fixing with the inner ring edge of second sheet metal 2 mutually, offer at least one medium inlet passage 5 at the inner ring edge of compound body 3 or near on the position at inner ring edge, 4 in gap is connected with the external world by medium inlet passage 5, after medium enters gap 4 by medium inlet passage 5, gap 4 becomes big, can be swollen under the effect of pressure medium.
First sheet metal 1 and second sheet metal 2 can adopt structures such as flat board, corrugated sheet, and the basic principle of these structure generation effects is identical.What Fig. 1-4 was shown is the structure that adopts metal corrugated plate, when being installed in gasket seal between the flange, gasket seal is pre-compacted, first sheet metal 1 is close to mutually with second sheet metal 2, medium inlet passage 5 is closed, extraneous medium can not enter in the compound body 3, sealing effect that this moment, gasket seal of the present invention rose and common individual layer gasket seal are basic identical, but after being to use a period of time, loosening etc. along with the wearing and tearing on extraneous factor such as sealed surface or fixing bolt, power compacted on the gasket seal weakens, medium inlet passage 5 can reopen, medium can enter in the gap 4 by medium inlet passage 5, and gap 4 becomes big, and the sealing pad can come the operating unit sealing load on the gasket seal is compensated by the pressure medium transmission, to increase the specific pressure on compound body 3 and sealed surface, realize the self-tightening effect, sealing gasket sector-meeting of the present invention this moment still has good sealing effect, and also the gasket seal than common is strong to bear the ability of pressure.
For reaching above-mentioned effect, the present invention can also have another mode of execution, this mode of execution and above-mentioned mode of execution institute difference are, unfixing between the inner ring edge of the inner ring edge of first sheet metal 1 and second sheet metal 2, but open wide, form opening between the two inner ring edges, 4 in gap is connected with the external world by opening, after medium enters gap 4 by opening, it is big that gap 4 also can become under pressure, thereby utilize the pressure medium transmission to come the operating unit sealing load on the gasket seal is compensated, realize the self-tightening effect.
0.05-5 millimeters of the excursions of above-mentioned two kinds of mode of execution intermediate gaps 4.Medium inlet passage 5 can be opened on the inner ring edge of compound body 3, and is in outside the zone that coating 6 covered, as shown in Figure 3; Medium inlet passage 5 can also be opened near on the position at compound body 3 inner ring edges, and is in outside the zone that coating 6 covered, as shown in Figure 4.
In Fig. 2-4, crest portion on the crest portion on first sheet metal 1 and second sheet metal 2 matches stacked, trough portion on the trough portion on first sheet metal 1 and second sheet metal 2 matches stacked, a plurality of crest portions on first sheet metal 1 or second sheet metal 2 and trough portion form concentric circles, this sheet metal can be so that processing and production, moreover, adopt the wavy metal plate structure, make in pressure medium and temperature generation circulation change and when alternate load takes place, load can be distributed preferably at whole corrugated surface, avoided the concentrated stressed of slab construction Intermediate gasket edge, improved the fatigue resistance and the compression recovery performance of pad integral body, so this pad has the opposing alternate load, the seal pressure disappearance that temperature fluctuation causes causes the behavioral performance of seal failure.
The upper surface of compound body 3 and lower surface are provided with coating 6, when using installation, Selftightening compound sealing pad is between the flange of butt joint pipeline or equipment, coating 6 contacts with flange, at first play seal action, the material of described coating 6 is one or more the composite in graphite, fiber, teflon, the resin, and described coating 6 protrudes from 0.1-10 millimeters in the lip-deep crest of described compound body 3 portion.
The material of described first sheet metal 1 or described second sheet metal 2 is one or more the mixture in carbon steel, stainless steel, copper, aluminium, Monel (Monel), the severe nickel of English (Inconel), the titanium, and the thickness of described first sheet metal 1 or described second sheet metal 2 is 0.1-10 millimeters.
Claims (10)
1, a kind of Selftightening compound sealing pad, it comprises first sheet metal (1) of ring-type, it is characterized in that: it also comprises second sheet metal (2) of at least one ring-type, the compound body (3) of described first sheet metal (1) and the stacked formation ring-type of described second sheet metal (2), form gap (4) between first sheet metal (1) and second sheet metal (2) in the described compound body (3), the edge, outer ring of the edge, outer ring of described first sheet metal (1) and described second sheet metal (2) fixes, the inner ring edge of the inner ring edge of described first sheet metal (1) and described second sheet metal (2) fixes, be provided with at least one medium inlet passage (5) at the inner ring edge of described compound body (3) or near on the position at inner ring edge, described gap (4) only is connected with the external world by described medium inlet passage (5), after medium entered described gap (4) by described medium inlet passage (5), described gap (4) became big.
2, Selftightening compound sealing pad according to claim 1 is characterized in that: described first sheet metal (1) and described second sheet metal (2) are metal corrugated plate.
3, Selftightening compound sealing pad according to claim 2, it is characterized in that: the crest portion on crest portion on described first sheet metal (1) and described second sheet metal (2) matches stacked, and the trough portion on trough portion on described first sheet metal (1) and described second sheet metal (2) matches stacked.
4, according to claim 2 or 3 described Selftightening compound sealing pads, it is characterized in that: a plurality of crest portions on described first sheet metal (1) or described second sheet metal (2) and trough portion form concentric circles.
5, Selftightening compound sealing pad according to claim 1 is characterized in that: the upper surface of described compound body (3) and lower surface are provided with coating (6).
6, Selftightening compound sealing pad according to claim 5 is characterized in that: the material of described coating (6) is one or more the composite in graphite, fiber, teflon, the resin.
7, Selftightening compound sealing pad according to claim 5 is characterized in that: described coating (6) protrudes from 0.1-10 millimeters of the outer surfaces of described compound body (3).
8, Selftightening compound sealing pad according to claim 1 is characterized in that: the material of described first sheet metal (1) or described second sheet metal (2) is one or more the mixture in carbon steel, stainless steel, copper, aluminium, Monel, the severe nickel of English, the titanium.
9, Selftightening compound sealing pad according to claim 1 is characterized in that: the thickness of described first sheet metal (1) or described second sheet metal (2) is 0.1-10 millimeters.
10, a kind of Selftightening compound sealing pad, it comprises first sheet metal (1) of ring-type, it is characterized in that: it also comprises second sheet metal (2) of at least one ring-type, the compound body (3) of described first sheet metal (1) and the stacked formation ring-type of described second sheet metal (2), form gap (4) between first sheet metal (1) and second sheet metal (2) in the described compound body (3), the edge, outer ring of the edge, outer ring of described first sheet metal (1) and described second sheet metal (2) fixes, form opening between the inner ring edge of the inner ring edge of described first sheet metal (1) and described second sheet metal (2), described gap (4) only is connected with the external world by described opening, after medium entered described gap (4) by described opening, described gap (4) became big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101684065A CN101387345A (en) | 2007-09-30 | 2008-09-28 | Selftightening compound sealing pad |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710134158.8 | 2007-09-30 | ||
| CNA2007101341588A CN101144541A (en) | 2007-09-30 | 2007-09-30 | Corrugated self-fastening composite sealing pad |
| CNA2008101684065A CN101387345A (en) | 2007-09-30 | 2008-09-28 | Selftightening compound sealing pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101387345A true CN101387345A (en) | 2009-03-18 |
Family
ID=39207200
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101341588A Pending CN101144541A (en) | 2007-09-30 | 2007-09-30 | Corrugated self-fastening composite sealing pad |
| CNA2008101684065A Pending CN101387345A (en) | 2007-09-30 | 2008-09-28 | Selftightening compound sealing pad |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101341588A Pending CN101144541A (en) | 2007-09-30 | 2007-09-30 | Corrugated self-fastening composite sealing pad |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101144541A (en) |
| WO (1) | WO2009043248A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927272A (en) * | 2012-10-23 | 2013-02-13 | 安徽誉丰汽车技术有限责任公司 | Automobile sealing device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144541A (en) * | 2007-09-30 | 2008-03-19 | 马志刚 | Corrugated self-fastening composite sealing pad |
| GB201001834D0 (en) | 2010-02-04 | 2010-03-24 | Airbus Operations Ltd | Bridging seal |
| CN105042234A (en) * | 2015-04-20 | 2015-11-11 | 中国石油大学(华东) | MMC type gasket and design method for flange connection |
| CN107174857A (en) * | 2017-05-03 | 2017-09-19 | 南通华兴石油仪器有限公司 | A kind of Rose Box for slurry stirring device |
| WO2019109282A1 (en) * | 2017-12-07 | 2019-06-13 | 徐文胜 | Method for processing polytetrafluoroethylene temperature-resistant gasket with steel lining, and product |
| CN110303246B (en) * | 2019-07-29 | 2021-10-29 | 武汉华工激光工程有限责任公司 | Seal welding method and bipolar plate |
| CN112032232B (en) * | 2020-09-30 | 2024-06-04 | 福州大学 | Metal corrugated composite sandwich buffer member and installation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004308761A (en) * | 2003-04-07 | 2004-11-04 | Uchiyama Mfg Corp | Multifunction gasket |
| CN100501200C (en) * | 2006-01-09 | 2009-06-17 | 励行根 | Wave-shaped composite sealing pad manufacture method |
| CN101033800A (en) * | 2007-04-11 | 2007-09-12 | 马志刚 | Stacked opening sealing gasket and manufacture method therefor |
| CN100476268C (en) * | 2007-04-13 | 2009-04-08 | 马志刚 | Self-reinforcing flexible sealing gasket and manufacture method thereof |
| CN101042192A (en) * | 2007-04-16 | 2007-09-26 | 马志刚 | Self-reinforcing flexible ring tube sealing pad and manufacturing method thereof |
| CN101144541A (en) * | 2007-09-30 | 2008-03-19 | 马志刚 | Corrugated self-fastening composite sealing pad |
-
2007
- 2007-09-30 CN CNA2007101341588A patent/CN101144541A/en active Pending
-
2008
- 2008-08-25 WO PCT/CN2008/072131 patent/WO2009043248A1/en active Application Filing
- 2008-09-28 CN CNA2008101684065A patent/CN101387345A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927272A (en) * | 2012-10-23 | 2013-02-13 | 安徽誉丰汽车技术有限责任公司 | Automobile sealing device |
| CN102927272B (en) * | 2012-10-23 | 2016-12-21 | 安徽誉丰汽车技术有限责任公司 | A kind of automobile sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101144541A (en) | 2008-03-19 |
| WO2009043248A1 (en) | 2009-04-09 |
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Open date: 20090318 |