CN88211320U - Sealing element made from metal and expanding graphite composite packing - Google Patents
Sealing element made from metal and expanding graphite composite packing Download PDFInfo
- Publication number
- CN88211320U CN88211320U CN 88211320 CN88211320U CN88211320U CN 88211320 U CN88211320 U CN 88211320U CN 88211320 CN88211320 CN 88211320 CN 88211320 U CN88211320 U CN 88211320U CN 88211320 U CN88211320 U CN 88211320U
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- sealing
- packing
- expanded graphite
- sealing element
- metal
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- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing element made from metal and expanding graphite composite packing, which is formed by the stamped composite of the compound between the metallic material-a foil band or a silk screen and the expanding graphite material; the assembly is dealt in a certain mode. The utility model is used in the function of reinforcement for the metallic material; thus, the packing has a superior sealing performance, and the problems exist in the aspects of safety, service life, assembling, disassembling, etc. In the previous pure expanding graphite packing are solved. The utility model can be widely used as the sealing element of the packing box of various equipment (such as pumps, valves, etc.), the self-sealing ring for the flange connection of the equipment (such as valves or other equipment), or other packing and sealing element.
Description
The utility model belongs to packing seal element.
In the packing seal technology, do not leak in order to guarantee the sealing of sealed position such as Stuffing box place, normally the packing seal element that is made of as braidings such as cotton, fiber crops, asbestos various lamination coatings is installed at this place, by the effect of impacting force, packing seal element deforms and is adjacent to sealed position and reaches sealing.In recent years, people begin to adopt the sealing material of expanded graphite meterial as filler.In the prior art, the packing seal element that is made of expanded graphite meterial normally is wrapped in the expanded graphite of band shape on the mandrel to certain size, is placed on then and is molded into the rectangular packing seal element of section in the mould.The packing seal element that this pure graphite material is molded is owing to the excellent sealability of expanded graphite meterial obtains gratifying sealing effect.But because the mechanical strength of expanded graphite meterial itself is lower, the packing seal element that is molded as by expanded graphite is easy to destroyed merely.May leak because of certain reason causes Stuffing box in actual use, at this moment, the high-velocity fluid expanded graphite packing Sealing that scouring intensity is not high that is leaked, so that filler is washed away, make and leak aggravation.The aggravation of leaking will cause expanded graphite packing to be subjected to more violent washing away again.So vicious circle finally may all " be blown sky " by filler, thereby be caused serious leakage accident in short-term, this is particularly dangerous in the High Temperature High Pressure occasion.Thereby the packing seal element that constitutes by pure expanding graphite material Security is not enough in actual use.On the other hand, what is called " graphite transfer " phenomenon might take place in expanded graphite meterial when contacting with sealed axle or bar, be the surface that graphite material can adhere to axle or bar, when axle or bar motion, packing seal element itself be damaged, thereby cause leaking.In addition, if use when making the opening packing seal element of being convenient to install, because pure expanded graphite packing intensity is not high, in installation, the structural integrity that tends to damage filler when breaking filler into two with one's hands or destroy filler, and when dismounting be difficult for whole circle and pull out, thereby from sealing part such as Stuffing box dismounting also difficulty relatively.
It is a kind of by metallic material and the compound spacer seal that constitutes of expanded graphite that application number is that the patent application of CN87207110 has been released, it is to be skeleton so that the poor metal ring of concentric ditch to be arranged at sealing surfaces, compound one deck expanded graphite meterial on the poor surface of band ditch is to overcome the low shortcoming of pure expanded graphite spacer seal intensity.But we know, gasket seal and packing seal are the sealing means of two class different in kinds, gasket seal generally is used for static seal occasions such as flange connection, and packing seal generally is used for motive sealing occasions such as Stuffing box, because the mode of action difference of the two sealing, thereby metal one expanded graphite Composition spacer Sealing can not be used for the Stuffing box occasion of motive sealing.The utility model provides a kind of metal-expanded graphite compound packing seal element, and not only sealability is good for it, and sound construction, and long service life is safe and reliable.
Essence of the present utility model is that Sealing is by the strip metal material and expanded graphite is compound constitutes, Sealing is circular, strip metal material and expanded graphite are that centres ground is alternately identical with the center line of Sealing, and the inside and outside circle surface of Sealing is an expanded graphite meterial.According to the difference of use occasion, the section of Sealing annulus can be rectangle or multiple shape such as trapezoidal.On principle, described metallic material can be the metal that any intensity is higher than expanded graphite, but in actual use, generally adopts iron, copper, lead, aluminium, zinc and their alloy according to service condition.
Described expanded graphite can be a pure expanding graphite material, also can add a small amount of " sacrificial metal ", to prevent the electrolytic corrosion of graphite material.
In order to strengthen the combination force of banded metallic material and expanded graphite, the strip metal material can be that section is undulatory paper tinsel band, because the existence of ripple, and the interlock that just intermeshes of metal tape and expanded graphite.The strip metal material can also be the wire guipure, like this and the combination force between the expanded graphite also be very desirable.
Accompanying drawing 1,2 has been showed details of the present utility model.
Fig. 1 is the Sealing of rectangular cross section, can be used as filler box shaft seal Sealing usually.Fig. 2 is the Sealing of trapezoidal cross-section, can be used as the selfsealings circle that equipment connects usually.Among two figure, 1 for section is undulatory metallic foil, and 2 is expanded graphite meterial, and they are the center with the Sealing center line, and it is alternate and together engaged to intermesh with one heart, and is expanded graphite meterial on the inner peripheral surface 3 and the surface, outer ring 4 of Sealing.
The composite filling Sealing can be the whole circle of sealing, and also can be the whole circle of band opening or be divided into the form of two amalgamations for the safety convenient disassembly.The whole circle composite seal of accompanying drawing 3 expression band openings, accompanying drawing 4 expressions are divided into two composite seal, are put together by two halves nahlock 6 and 7.In Fig. 3 and Fig. 4,5 is opening, and the opening mating face is generally the inclined-plane, also can be vertical plane.The whole circle composite seal of band opening when mounted can be as other asbestos packing circle be broken into two with one's hands in the Stuffing box of packing into and needn't be inserted in from axle head at opening.The packing seal element that is divided into two amalgamations then can separate the Stuffing box of directly packing into, encloses conveniently than opening is whole when therefore installing.The composite seal of band opening and although one or two mating face is arranged by the packing seal element of two amalgamations, but it is the same with other soft filler, they will deform and clog the leakage crack of junction point under the compressing of axial force, make the junction keep excellent sealing performance.During the actual use of composite filling Sealing, because the effect of impacting force deforms, the inside and outside circle surface of Sealing is adjacent to sealed position and since with the contacted inside and outside circle surface layer in sealed position be expanded graphite meterial, thereby can obtain excellent sealing performance.The strong effect of metallic material makes very close and firm of composite seal internal structure, thereby has prevented the possibility that expanded graphite meterial " is blown sky " by fluid.If sealed is axle or bar; when the motion of axle or bar, be adhered to spool so or the expanded graphite on bar surface can be scraped off from above by metal foil or silk screen and is retained in the old place because of " graphite transfer "; make Sealing avoid damaging; in fact play the effect of autoprotection; therefore improved the safety reliability of composite filling greatly, but life-saving.On the other hand, because the humidification of metallic material, band opening composite filling Sealing as previously described is not easy to be damaged breaking into two with one's hands when installing, and whole easily circle is pulled out when Stuffing box dismantle, thereby gives and the replacing Sealing is installed is brought convenience.Therefore, the metal that the utility model provides-expanded graphite composite filling Sealing has the excellent sealing performance of expanded graphite packing Sealing not to the utmost, and has solved the problem that existing pure expanded graphite packing Sealing exists at aspects such as safety reliability, life-span and loading and unloading.It can be widely used as the Stuffing box seal element of various device such as pump, valve etc. or the selfsealings circle of equipment such as valve or the connection of other equipment, or other packing seal elements.
Claims (6)
1, a kind of packing seal element, it is characterized in that it is by the strip metal material and expanded graphite is compound constitutes, Sealing is circular, and strip metal material and expanded graphite are centres ground interleaved with the center line of Sealing, and the inside and outside circle surface of Sealing is a graphite material.
2,, it is characterized in that described strip metal material is that section is undulatory paper tinsel band according to the described Sealing of claim 1.
3,, it is characterized in that described strip metal material is the silk screen band according to the described Sealing of claim 1.
4,, it is characterized in that the section of described Sealing is rectangular or trapezoidal according to claim 1 or 2 or 3 described Sealings.
5,, it is characterized in that the annulus of described Sealing, or can be divided into two amalgamation annulus for the band opening according to claim 1 or 2 or 3 described Sealings.
6,, it is characterized in that described strip metal material is iron, copper, lead, aluminium, zinc and their alloy according to the described Sealing of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211320 CN88211320U (en) | 1988-01-08 | 1988-01-08 | Sealing element made from metal and expanding graphite composite packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211320 CN88211320U (en) | 1988-01-08 | 1988-01-08 | Sealing element made from metal and expanding graphite composite packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88211320U true CN88211320U (en) | 1988-12-28 |
Family
ID=4844730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88211320 Withdrawn CN88211320U (en) | 1988-01-08 | 1988-01-08 | Sealing element made from metal and expanding graphite composite packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88211320U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102317662A (en) * | 2009-02-10 | 2012-01-11 | Nok株式会社 | Sliding member and process for producing same |
| CN102767621A (en) * | 2012-08-13 | 2012-11-07 | 慈溪博格曼密封材料有限公司 | Irregular packing |
| CN101142430B (en) * | 2005-03-18 | 2013-01-02 | 费希尔控制产品国际有限公司 | Split packing follower for use with valves |
| CN103363220A (en) * | 2013-06-25 | 2013-10-23 | 南阳国宇密封发展有限公司 | Sealing gasket for exhaust system of supercharged engine and machining method thereof |
| CN104896094A (en) * | 2015-06-10 | 2015-09-09 | 自贡鑫剑密封科技有限公司 | Self-sealing ring and machining method thereof |
| CN110375068A (en) * | 2019-07-25 | 2019-10-25 | 宁波信幸隆密封制品有限公司 | A kind of band-like carbon seal ring and its processing technology and process equipment |
-
1988
- 1988-01-08 CN CN 88211320 patent/CN88211320U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142430B (en) * | 2005-03-18 | 2013-01-02 | 费希尔控制产品国际有限公司 | Split packing follower for use with valves |
| CN102317662A (en) * | 2009-02-10 | 2012-01-11 | Nok株式会社 | Sliding member and process for producing same |
| CN102767621A (en) * | 2012-08-13 | 2012-11-07 | 慈溪博格曼密封材料有限公司 | Irregular packing |
| CN103363220A (en) * | 2013-06-25 | 2013-10-23 | 南阳国宇密封发展有限公司 | Sealing gasket for exhaust system of supercharged engine and machining method thereof |
| CN104896094A (en) * | 2015-06-10 | 2015-09-09 | 自贡鑫剑密封科技有限公司 | Self-sealing ring and machining method thereof |
| CN104896094B (en) * | 2015-06-10 | 2017-03-22 | 自贡鑫剑密封科技有限公司 | Self-sealing ring and machining method thereof |
| CN110375068A (en) * | 2019-07-25 | 2019-10-25 | 宁波信幸隆密封制品有限公司 | A kind of band-like carbon seal ring and its processing technology and process equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: NO. 502, NO. 27, VILLAGE 11, SHIHUA, SHIYOUHUAGONGZONG FACTORY, SHANGHAI CITY, JINSHANWEI, SHANGHAI CITY TO: HOUSE 22, YUAN, NO. 37, JINENLI, BEIJING ROAD, GUANGZHOU CITY, GUANGDONG PROVINCE, 510115 |
|
| CP03 | Change of name, title or address |
Address after: 510115, Beijing Road, Guangdong, Guangzhou Province, near grace 37, building 22 yuan Patentee after: Wu Shuji Address before: No. 27, No. 11, No. 502, petrochemical village, Jinshan petrochemical plant, Shanghai, Shanghai Patentee before: Wu Shuji |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |