CN201916485U - Composite gasket with parting beads - Google Patents
Composite gasket with parting beads Download PDFInfo
- Publication number
- CN201916485U CN201916485U CN2010205941530U CN201020594153U CN201916485U CN 201916485 U CN201916485 U CN 201916485U CN 2010205941530 U CN2010205941530 U CN 2010205941530U CN 201020594153 U CN201020594153 U CN 201020594153U CN 201916485 U CN201916485 U CN 201916485U
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- Prior art keywords
- parting bead
- metal
- ring skeleton
- skeleton
- metal frame
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- Expired - Lifetime
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Abstract
The utility model relates to a composite gasket with parting beads, belonging to a sealing gasket for connection of heat transfer equipment. The composite gasket with the parting beads comprises a metal skeleton and soft material layers. The composite gasket with the parting beads is virtually that the metal skeleton comprises an annular skeleton, and a plurality of parting beads arranged in the inner ring of the skeleton; the annular skeleton is formed that outer peripheries of two metal sheets piled up together are fused and connected; the parting beads are a plurality of flat metal straps; the soft material layers are respectively arranged on the annular skeleton of the metal skeleton and two outer surfaces of the parting beads; and the hardness of the soft material layers is lower than that of soft metal material layers with hardness of metal straps or nonmetallic material layers or composite material layers of a soft metal material and a nonmetallic material. The composite gasket with the parting beads has the characteristic of pressure self sealing, and the sealing performance of the composite gasket is greatly improved than that of the traditional sealing gasket.
Description
Technical field
The utility model relates to the heat transmission equipment connection and uses gasket seal, particularly is with the parting bead composite sealing pad.
Background technique
In the flange of existing various heat transmission equipments connects,, usually need to use the pad of various band parting beads as Sealing in order to reach the purpose that sealing is not leaked.Heat exchanging equipment, the pad of band parting bead are as the bobbin carriage pad of multitube journey heat transmission equipment and floating head pad.These pads are made up of annular outer ring and the parting bead put within it.Annular outer ring is being born the function that prevents that medium from leaking outside, and parting bead is then being born the drip-preventing function between tube side.Band parting bead pad is typically provided with some parting beads in the heat transmission equipment, and its quantity and layout depend on the branch range request of heat exchanger.Existing band parting bead pad all is made of various metals or nonmetallic material.These pads all belong to " forced seal " on sealing principle.That is to say that the pad that is placed between the flange forms compressive stres or claims pad stress by tightening attachment bolt pad being compressed on pad.When compressive stres reached the required stress of gasket seal, the flange connection place will reach sealing and not leak.If the bolt force of tension flange is because a variety of causes is unfavorable for the situation of compress gasket,, all may makes the sealability decline of connection place even leak perhaps because other reasons reduces the stress of pad.For example, in general heat transmission equipment flange connected, pad was installed the pretension of back by attachment bolt, has formed certain compressive stres or title pad stress on pad.After heat transmission equipment came into operation, its interior media pressure can raise gradually, until the desired pressure of the system that reaches.When there was pressure in system, the axial force of pressure formation can make bolt force and pad stress in the flange connection change thus.Bolt force raises with the rising of interior pressure, and pad stress then reduces with the rising of interior pressure.Under identical flange join condition, the minimizing of the rising of bolt force and pad stress mainly depend on in the material and the structural characteristics of pad.When pad stress is reduced to less than the required stress of gasket seal, connect and to reach sealing.
Summary of the invention
The purpose of this utility model provides the band parting bead Composition spacer that a kind of annular outer ring has pressure selfsealings characteristic, thereby improves its sealability greatly.
Technical solution of the present utility model is that band parting bead Composition spacer comprises metal frame, flexible material layer, described metal frame is to be made up of some parting beads of ring skeleton and circle setting within it, ring skeleton is linked together by its outer periphery fusion of two tinsels that are superimposed together and forms, and parting bead is some flat metal bars; Described flexible material layer is for two outer surfaces of the ring skeleton that is located at metal frame respectively and parting bead, and its hardness is less than soft alloy material layer, the non-metallic material bed of material of tinsel hardness, perhaps its composition material layer.
The outer surface of above-described two metal sheets and/or flat metal bar can be a burnishing surface.
The outer surface of two metal sheets of the present utility model and/or flat metal bar can be concavo-convex roughened surface.
Two metal sheets of the present utility model and/or flat metal bar can be corrugated.
Can be provided with some annular concentric grooves on the outer surface of two metal sheets of the present utility model, the outer surface of flat metal bar can be provided with some parallel grooves.
The sectional shape of above-described annular concentric groove and/or parallel groove can be pointed shape or arc.
The distribution at two outer surfaces of metal frame of the parallel groove on the annular concentric groove on the outer surface of two metal sheets of the present utility model and/or the outer surface of flat metal bar is relative, or interlace.
Working principle of the present utility model is: band parting bead Composition spacer is placed between the two coupled flanges in the heat transmission equipment flange connects.When the pretension flange, will be with the parting bead Composition spacer to compress and form corresponding impacting force pad stress on Composition spacer surface by tightening attachment bolt.The sealing of flange connection place is not leaked.Under serviceability, though the same with existing heat transmission equipment flange connection, behind the pressure medium access arrangement, can form corresponding axial force, this axial force can make bolt force and the pad stress in the flange connection all can change.Bolt force can raise along with interior voltage rise height, and pad stress then reduces with interior voltage rise is high.But meanwhile, pressure medium can penetrate into the micro gap between the tinsel of ring skeleton of band parting bead Composition spacer.Because the outer periphery of the tinsel that is superimposed together is welded together fully closely, so medium can not let out from here.The pressure that enters the micro gap place acts on the inboard of tinsel, makes two metal sheets outwards press to corresponding flanged surface respectively, thereby forms additional pad stress between the annular outer surface of being with the parting bead Composition spacer and flanged surface.This additional pad stress can reach pressure medium.Because the existence of additional pad stress makes originally the pad stress that reduces because of pressure rising or other reasons be compensated, thereby its sealability also just is better than existing other conventional pads.Because additional pad stress is formed by the intrasystem pressure medium of heat transmission equipment, pressure medium is high more, and additional pad stress is also big more, and sealing also just is guaranteed easily.This shows that band parting bead Composition spacer has the self-packing characteristic of pressure, thereby it is a kind of novel " pressure selfsealings " pad that is different from existing " forced seal " pad.
The utility model has the advantages that band parting bead Composition spacer has pressure selfsealings characteristic, intrasystem pressure medium is high more, and its sealability is good more, causes the deficiency that sealability reduces because of intrasystem pressure medium raises thereby overcome existing pad.
Description of drawings
Fig. 1 is an organigram of the present utility model;
Fig. 2 is along A-A sectional view among Fig. 1;
Fig. 3 is provided with arcuate furrow and the organigram of the configuration that interlaces for two outer surfaces of ring skeleton of the present utility model;
Fig. 4 is provided with the organigram of arcuate furrow and relative configuration for two outer surfaces of ring skeleton of the present utility model;
Fig. 5 is provided with the pointed shape groove and the organigram of the configuration that interlaces for two outer surfaces of ring skeleton;
Fig. 6 is provided with the organigram of pointed shape groove and relative configuration for two outer surfaces of ring skeleton;
Fig. 7 is the organigram of burnishing surface for two outer surfaces of ring skeleton;
Fig. 8 is the organigram of bellows-shaped for the two metal sheets of ring skeleton;
Fig. 9 is provided with arcuate furrow and the organigram of the configuration that interlaces for two outer surfaces of parting bead;
Figure 10 is provided with the organigram of arcuate furrow and relative configuration for two outer surfaces of parting bead;
Figure 11 is provided with the pointed shape groove and the organigram of the configuration that interlaces for two outer surfaces of parting bead;
Figure 12 is provided with the organigram of pointed shape groove and relative configuration for two outer surfaces of parting bead;
Figure 13 is the organigram of burnishing surface for two outer surfaces of parting bead;
Figure 14 is that parting bead 2 is the organigram of bellows-shaped.
Embodiment
Band parting bead Composition spacer of the present utility model is made up of the compound low flexible material of hardness ratio metal frame on metal frame and its.Metal frame by ring skeleton with and the some parting beads welding of inner ring setting form.Ring skeleton can be circular or other shape, it is lumped together by two metal film stacks, and by welding method the periphery sides of two tinsels is fused together fully and densely in its outer circumference, thereby constitute the superimposed metal ring skeleton of integrally-built bimetal, its interior some parting beads that are made of the flat metal bar that are provided with according to the branch journey needs of multitube journey heat transmission equipment splice with ring skeleton mutually by welding method, thereby constitute integrally-built metal frame.At the outer surface of metal frame, promptly pad and flanged surface facing surfaces are compounded with the low soft alloy material layer of its hardness ratio metal frame hardness or the non-metallic material bed of material or its combined material layer, constitute band parting bead Composition spacer of the present utility model thus.Compound tense can use a little binder as required, also can not use tackiness agent.
As shown in Figure 1 and Figure 2, band parting bead Composition spacer by endless metal skeleton 1 and built-in parting bead 2 with and go up compound flexible material layer 3 and form.The tinsel 4 and the tinsel 5 of surfacing are superimposed together, and tinsel 4 and tinsel 5 usefulness carbon steels or stainless steel are made, and also available other metallic material are made.6 places, outer periphery at tinsel 4 and tinsel 5 fully closely fuse together by the outer periphery 6 of welding method with two tinsels, and formed small interior slit 7, the superimposed back of two metal sheets can't be communicated with the external world by the outer periphery 6 of melting welding.Built-in parting bead 2 is the flat metal bar, and available carbon steel or stainless steel are made, and also available other metallic material are made.Splice mutually with endless metal skeleton 1 by welding method, finally form integrally-built metal frame.The flat outer surface of tinsel 4 and tinsel 5 and parting bead 2 is compounded with flexible material layer 3, flexible material layer 3 usefulness Expanded graphite layer or polytetrafluoroethylmaterial material layer, also can use hardness ratio carbon steel or low copper sheet or aluminium flake or the lead flake of stainless steel hardness, the graphite composite bed that can also strengthen etc. with the graphite composite bed such as the stainless (steel) wire of metal enhancing.
For the outer surface of the two metal sheets that makes endless metal skeleton 1 and the outer surface and the flexible material layer 3 of parting bead 2 can be combined with each other better, sealing and safety reliability with further raising pad, can also be processed with 5 annular concentric grooves on the outer surface of the two metal sheets of endless metal skeleton 1, the outer surface of parting bead 2 also can be processed with 5 parallel grooves, the sectional shape of groove can be profile of tooth, arc or other shapes, and the arrangements of grooves of upper and lower surface can be relative or interlace.The roughened surface that the surface of annular sheet metal and parting bead is also concavo-convex.
As shown in Figure 3, be processed with arcuate furrow and interlace configuration on two outer surfaces of ring skeleton 1.
As shown in Figure 4, be processed with arcuate furrow and configuration relatively on two outer surfaces of ring skeleton 1.
As shown in Figure 5, be processed with the pointed shape groove on two outer surfaces of ring skeleton 1 and the configuration that interlaces.
As shown in Figure 6, be processed with pointed shape groove and configuration relatively on two outer surfaces of ring skeleton 1.
As shown in Figure 7, two outer surfaces of ring skeleton 1 are processed into burnishing surface.
As shown in Figure 8, have better compression-rebound characteristics in order to make Composition spacer, the tinsel 4 of ring skeleton 1 and tinsel 5 can also be processed into bellows-shaped respectively, and superimposed back closely fuses together it by welding method at its 6 places, outer periphery.The outer surface of corrugated tinsel 4 and tinsel 5 is compounded with flexible material layer 3 respectively.The micro gap 7 that superimposed back forms between corrugated tinsel 4 and tinsel 5.
As shown in Figure 9, be processed with arcuate furrow and interlace configuration on two outer surfaces of parting bead 2.
As shown in figure 10, be processed with arcuate furrow and configuration relatively on two outer surfaces of parting bead 2.
As shown in figure 11, be processed with the pointed shape groove on two outer surfaces of parting bead 2 and the configuration that interlaces.
As shown in figure 12, be processed with pointed shape groove and configuration relatively on two outer surfaces of parting bead 2.
As shown in figure 13, two outer surfaces of parting bead 2 are processed into burnishing surface.
As shown in figure 14, parting bead 2 is processed into bellows-shaped, is compounded with flexible material layer 3 respectively on its two outer surface.
Claims (7)
1. be with the parting bead Composition spacer, comprise metal frame, flexible material layer, it is characterized in that described metal frame is for being made up of some parting beads of ring skeleton and circle setting within it, ring skeleton is linked together by its outer periphery fusion of the two metal sheets that is superimposed together and forms, and parting bead is some flat metal bars; Described flexible material layer is for two outer surfaces of the ring skeleton that is located at metal frame respectively and parting bead, and its hardness is less than the soft alloy material layer or the non-metallic material bed of material of tinsel hardness.
2. band parting bead Composition spacer according to claim 1 is characterized in that the ring skeleton of described metal frame and/or the outer surface of parting bead are burnishing surfaces.
3. band parting bead Composition spacer according to claim 1 is characterized in that the ring skeleton of described metal frame and/or the outer surface of parting bead are concavo-convex roughened surfaces.
4. band parting bead Composition spacer according to claim 1 is characterized in that the ring skeleton of described metal frame and/or parting bead are corrugated.
5. band parting bead Composition spacer according to claim 2 is characterized in that the outer surface of the two metal sheets of described ring skeleton is provided with some annular concentric grooves, and the outer surface of the flat metal bar of parting bead is provided with some parallel grooves.
6. band parting bead Composition spacer according to claim 5 is characterized in that the sectional shape of described annular concentric groove and/or parallel groove is a pointed shape, or arc.
7. band parting bead Composition spacer according to claim 5 is characterized in that described annular concentric groove and/or parallel groove are relative in the distribution of two outer surfaces of metal frame, or interlace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205941530U CN201916485U (en) | 2010-11-05 | 2010-11-05 | Composite gasket with parting beads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205941530U CN201916485U (en) | 2010-11-05 | 2010-11-05 | Composite gasket with parting beads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916485U true CN201916485U (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205941530U Expired - Lifetime CN201916485U (en) | 2010-11-05 | 2010-11-05 | Composite gasket with parting beads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916485U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359591A (en) * | 2011-09-02 | 2012-02-22 | 广东省佛山水泵厂有限公司 | Plane sealing structure and axially split multistage pump using same |
| CN103062541A (en) * | 2013-01-29 | 2013-04-24 | 艾志（南京）环保管接技术股份有限公司 | Metal gasket with fishbone-shaped section and inclined teeth |
| CN103807440A (en) * | 2014-03-13 | 2014-05-21 | 茂名重力石化机械制造有限公司 | Self-tightening type sealing gasket for sealing asymmetric structure |
| CN104279217A (en) * | 2014-09-30 | 2015-01-14 | 无锡市新颖密封材料厂 | Expanded graphite composite reinforcement gasket |
| 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 |
| CN107869585A (en) * | 2017-12-14 | 2018-04-03 | 常州荣南橡胶科技有限公司 | A kind of weather strip for automobile of service life length |
-
2010
- 2010-11-05 CN CN2010205941530U patent/CN201916485U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359591A (en) * | 2011-09-02 | 2012-02-22 | 广东省佛山水泵厂有限公司 | Plane sealing structure and axially split multistage pump using same |
| CN103062541A (en) * | 2013-01-29 | 2013-04-24 | 艾志（南京）环保管接技术股份有限公司 | Metal gasket with fishbone-shaped section and inclined teeth |
| CN103807440A (en) * | 2014-03-13 | 2014-05-21 | 茂名重力石化机械制造有限公司 | Self-tightening type sealing gasket for sealing asymmetric structure |
| CN104279217A (en) * | 2014-09-30 | 2015-01-14 | 无锡市新颖密封材料厂 | Expanded graphite composite reinforcement gasket |
| 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 |
| CN107869585A (en) * | 2017-12-14 | 2018-04-03 | 常州荣南橡胶科技有限公司 | A kind of weather strip for automobile of service life length |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou Dongshan Nanfang sealing element Co., Ltd. Assignor: Liu Xiuying Contract record no.: 2017440000135 Denomination of utility model: Composite gasket with parting beads Granted publication date: 20110803 License type: Common License Record date: 20170906 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| CX01 | Expiry of patent term |