CN2839787Y - W type teeth groove graphite Composition spacer - Google Patents
W type teeth groove graphite Composition spacer Download PDFInfo
- Publication number
- CN2839787Y CN2839787Y CN 200520077615 CN200520077615U CN2839787Y CN 2839787 Y CN2839787 Y CN 2839787Y CN 200520077615 CN200520077615 CN 200520077615 CN 200520077615 U CN200520077615 U CN 200520077615U CN 2839787 Y CN2839787 Y CN 2839787Y
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- Prior art keywords
- groove
- type teeth
- teeth groove
- composition spacer
- graphite
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- Expired - Fee Related
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Abstract
W type teeth groove graphite Composition spacer, its skeleton cross section becomes the W type, upper and lower surface at clout body respectively is provided with a toroidal cavity, in groove, be pressed into expanded graphite, it is characterized in that groove floor is provided with the concentric grooves of many different radiis, the shape of groove can be triangle or trapezoidal, and the shape of groove can be continuous.The concentric grooves of set many different radiis of groove floor on the upper and lower surface of clout body can be relative, also can be to interlace.
Description
Technical field
The utility model relates to the gasket seal between the industrial flange connections, and particularly a kind of W type teeth groove graphite Composition spacer belongs to the improvement of static seal element.
Background technique
In the pipe-line system of industrial fields such as petrochemical industry, electric power, national defence, need a large amount of good airproof performances, high temperature resistant, high pressure, stable height and corrosion resistant Sealing, make system sealing reliably with the proper functioning of assurance equipment, system.At present, 95% ' static seal " be to adopt " flange seal ", pad is exactly a critical piece in the flange seal structure.Do not leak in order to keep the mating face sealing, the most frequently used method is that to put the seal element of being made by metallic material or nonmetallic material between the flange mating face (be pad,), by compressing of flange mating face, gasket material deforms, the microcosmic that fills up engaging surface is uneven, has stopped up the passage of dielectric leakage and reaches the effect of sealing.Expanded graphite is a kind of sealing material of function admirable.But the intensity of itself is lower.Pad as static seal uses not only inconvenience separately, and general is used under the low pressure condition.When using owing to reality might because of certain reason cause leak pad " is blown sky " thus cause serious accident.Especially more dangerous in the High Temperature High Pressure important events.Therefore Security in use is not enough., sometimes expanded graphite and the combined Composition spacer of making of other materials are used, the Strength of Metallic Materials height is the good material with the right black Composition spacer that expands for this reason.Prior art discloses a kind of metal-expanded graphite Composition spacer, at the middle part, upper and lower surface of clout body one annular groove is arranged respectively, is pressed into expanded graphite in annular groove, constitutes an integrated Composition spacer.Because groove floor is smooth flat, the expanded graphite that is pressed into combines with it and still has deficiency, and in the use of special occasions such as high temperature, high pressure, graphite might produce Radial Flow, finally causes " blowing sky " and makes seal failure.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of W type teeth groove graphite Composition spacer is provided, and guarantees that sealability is safe and reliable.Can reliable and stable sealing under high temperature, high pressure and nuclear radiation condition.
Above-mentioned purpose of the present utility model is achieved in that W type teeth groove graphite Composition spacer, its skeleton cross section becomes the W type, upper and lower surface at clout body respectively is provided with a toroidal cavity, in groove, be pressed into expanded graphite, it is characterized in that groove floor is provided with the concentric grooves of many different radiis, the shape of groove can be triangle or trapezoidal, and the shape of groove can be continuous.The upper and lower surface of clout body the concentric grooves of set many different radiis of groove floor, can be relative, also can be to interlace.
Advantage of the present utility model and effect: graphite has performances such as high-and low-temperature resistance, corrosion-resistant and radiation hardness.According to the difference of usage requirement, can select the pure expanded graphite of high-performance of different densities, heterogeneity for use, to adapt to various superhigh temperature, ultrahigh pressure and nuclear radiation operating mode occasion.The clout body framework material can be selected stainless steels such as OCr18Ni9 or OOCr17Ni14Mo2 for use, also can adopt carbon steel or stainless steel metal material according to user's actual demand.Expanded graphite is provided with in the framework ring connected in star of W type teeth groove by high compression and bottom being closed in securely, make expanded graphite more tight with combining of skeleton, improved bearing capacity and sealability, prevented under High Temperature High Pressure worker shape, expanded graphite produces interflow or blows the sky phenomenon; In addition, W type teeth groove line is hidden in the clout body inside grooves, and when mounting flange moment was excessive, the teeth groove groove can not injure flange facing like this.The groove inside and outside ring boss of clout body skeleton can stop the radial force that absorption graphite expands because of pressurized and produces, and the graphite in the middle of making can bear very big pressure and be unlikely to crushed, and the inside and outside ring boss can also prevent that medium from washing away graphite.The pad skeleton also can reuse.
Description of drawings
Fig. 1 is the utility model general structure schematic representation.
Embodiment
As Fig. 1, the utility model respectively has an annular groove 2 at the middle part on the upper and lower surface of circular ring metal clout body 1, be provided with the concentric grooves 3 (with triangle continuous channel and upper and lower faces groove to being called example) of many different radiis in the bottom surface of groove 2, be pressed into expanded graphite 4, firmly fuse with clout body 1, constitute the integrated type Composition spacer.The thickness of the expanded graphite 4 that is pressed into can match with the degree of depth of clout body groove 2, also can slightly exceed the groove 2 of clout body 1, utilizes the elastic performance of graphite to play good sealing effect.
Claims (4)
1, W type teeth groove graphite Composition spacer respectively is provided with a toroidal cavity on the upper and lower surface of clout body, is pressed into expanded graphite in groove, it is characterized in that groove floor is provided with the concentric grooves of many different radiis.
2, W type teeth groove graphite Composition spacer according to claim 1 is characterized in that the shape of groove can be triangle or trapezoidal.
3, W type teeth groove graphite Composition spacer according to claim 2 is characterized in that the shape of said groove can be continuous.
4, according to claim 1 or 2 or 3 described W type teeth groove graphite Composition spacers, it is characterized in that clout body upper and lower surface the concentric grooves of set many different radiis of groove floor, can be relative, also can be to interlace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077615 CN2839787Y (en) | 2005-11-11 | 2005-11-11 | W type teeth groove graphite Composition spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077615 CN2839787Y (en) | 2005-11-11 | 2005-11-11 | W type teeth groove graphite Composition spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2839787Y true CN2839787Y (en) | 2006-11-22 |
Family
ID=37427769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077615 Expired - Fee Related CN2839787Y (en) | 2005-11-11 | 2005-11-11 | W type teeth groove graphite Composition spacer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2839787Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016867A (en) * | 2012-12-26 | 2013-04-03 | 宁波易天地信远密封技术有限公司 | Combined gasket |
| CN102159859B (en) * | 2008-07-16 | 2014-04-09 | 米科斯珀尔公司 | Comby two-sided overlain gasket for sealing of dismountable flanged joints |
| CN105156676A (en) * | 2015-07-17 | 2015-12-16 | 滨州双峰石墨密封材料有限公司 | Multi-stage sealing graphite gasket |
| CN106996460A (en) * | 2017-04-25 | 2017-08-01 | 扬中市众成管路配件有限公司 | A kind of high temperature resistant Composition spacer of high sealing performance |
| CN107061858A (en) * | 2017-04-25 | 2017-08-18 | 扬中市众成管路配件有限公司 | A kind of pipe valve component of high stability |
| CN107363190A (en) * | 2017-06-28 | 2017-11-21 | 太仓市凯诺石墨密封制品有限公司 | A kind of preparation technology of high-intensity sealing type graphite Composition spacer |
| CN115468051A (en) * | 2022-11-02 | 2022-12-13 | 江苏通工金属科技有限公司 | Flange metal gasket for preventing high-pressure failure and production device thereof |
-
2005
- 2005-11-11 CN CN 200520077615 patent/CN2839787Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159859B (en) * | 2008-07-16 | 2014-04-09 | 米科斯珀尔公司 | Comby two-sided overlain gasket for sealing of dismountable flanged joints |
| CN103016867A (en) * | 2012-12-26 | 2013-04-03 | 宁波易天地信远密封技术有限公司 | Combined gasket |
| CN105156676A (en) * | 2015-07-17 | 2015-12-16 | 滨州双峰石墨密封材料有限公司 | Multi-stage sealing graphite gasket |
| CN105156676B (en) * | 2015-07-17 | 2017-05-10 | 滨州双峰石墨密封材料有限公司 | Multi-stage sealing graphite gasket |
| CN106996460A (en) * | 2017-04-25 | 2017-08-01 | 扬中市众成管路配件有限公司 | A kind of high temperature resistant Composition spacer of high sealing performance |
| CN107061858A (en) * | 2017-04-25 | 2017-08-18 | 扬中市众成管路配件有限公司 | A kind of pipe valve component of high stability |
| CN106996460B (en) * | 2017-04-25 | 2018-08-28 | 扬中市众成管路配件有限公司 | A kind of high temperature resistant Composition spacer of high sealing performance |
| CN107363190A (en) * | 2017-06-28 | 2017-11-21 | 太仓市凯诺石墨密封制品有限公司 | A kind of preparation technology of high-intensity sealing type graphite Composition spacer |
| CN115468051A (en) * | 2022-11-02 | 2022-12-13 | 江苏通工金属科技有限公司 | Flange metal gasket for preventing high-pressure failure and production device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061122 Termination date: 20091211 |