CN201301961Y - Corrosion-resisting high-temperature mechanical sealing ring - Google Patents
Corrosion-resisting high-temperature mechanical sealing ring Download PDFInfo
- Publication number
- CN201301961Y CN201301961Y CNU2008202195555U CN200820219555U CN201301961Y CN 201301961 Y CN201301961 Y CN 201301961Y CN U2008202195555 U CNU2008202195555 U CN U2008202195555U CN 200820219555 U CN200820219555 U CN 200820219555U CN 201301961 Y CN201301961 Y CN 201301961Y
- Authority
- CN
- China
- Prior art keywords
- ring
- corrosion
- sealing ring
- temperature
- friction ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanical Sealing (AREA)
Abstract
Disclosed is a corrosion-resisting high-temperature mechanical sealing ring, wherein a non-metallic sealing ring with high-temperature and corrosion resistance is arranged between a stainless steel ring base and a friction ring, and is fixed by the turned-over edges of the ring base. The radial force exerted on the friction ring by the non-metallic sealing ring with high-temperature and corrosion resistance is soft, which makes the end face of the friction ring slightly deform, and guarantees the planeness of the sealing end face. The mechanical sealing ring can be used under the corrosive and high temperature conditions through adopting the corrosion-resisting stainless steel as the material of the ring base and flexible graphite as the material of the sealing ring. The corrosion-resisting high-temperature mechanical sealing ring has simple assembly and low cost.
Description
Technical field
The utility model relates to a kind of mechanical seal ring.
Background technique
High temperature (temperature 〉=200 ℃) mechanical seal, the form that adopts metal ring pedestal (1) and friction ring (2) interference heat to inlay usually realizes sealing and connects.Structure such as Fig. 1.What this interference assembling form metal ring seat matrix applied friction ring is a kind of radial rigidity power.Because some characteristics of metal itself, determined metal ring seat matrix and the hot insert of friction ring interference after, following situation can appear:
A: select corrosion resistant stainless steel as ring seat matrix and friction ring combination, can satisfy under the operating mode of corrosion and work, but because of metal ring seat matrix and the friction ring linear expansion coeffcient between the two differs bigger, when selecting magnitude of interference hour, the seal ring face deformation is less relatively, but under the situation of high temperature, friction ring can come off from metal ring seat matrix, sealing between the two disappears, and whole mechanical seal was lost efficacy; When selecting magnitude of interference big, can prevent that friction ring can come off from metal ring seat matrix under the state of high temperature, but friction ring face deformation amount is bigger, influences the end face seal effect, very high because of the planeness requirement of mechanical seal friction ring end face, generally be controlled in the 0.009 μ m.
B: select extraordinary constant expansion alloy as the ring seat body material, because of the linear expansion coeffcient of extraordinary constant expansion alloy and friction ring approaching, can be implemented under the situation of high temperature, the distortion that assurance does not come off between the two and the friction ring end face is less, but this alloy special chemical component has determined its corrosion-resistant, can not use under the working condition of corrosion, while costs an arm and a leg because of extraordinary constant expansion alloy, and the cost of a whole set of mechanical seal is increased greatly.
Summary of the invention
At the defective that the existing machinery seal ring exists, the utility model provides a kind of good sealing effect, the mechanical seal ring that insert is simple, cost is low.
Solving the problems of the technologies described above the technological scheme of being taked is: a kind of corrosion-resistant and high-temperature resistant mechanical seal ring is characterized in that:
Be shaped on the thin body of flanging in ring seat body upper end, the seal washer of in the ring seat body, packing into, the friction ring of packing on seal washer is shaped on the thin body fixed platform of flanging below the friction ring end face, the thin body of flanging on the ring seat body is fixed on the thin body fixed platform of flanging of friction ring end face below to in-flanges.
The beneficial effects of the utility model:
The utility model selects for use corrosion resistant stainless steel as the matrix ring seat, between ring seat body and friction ring, be pressed into the nonmetal seal washer of corrosion-and high-temp-resistant, after ring seat body top flange was fixing, stainless steel ring pedestal and friction ring connect and integral sealing structure of sealing composition by the transition of nonmetal seal washer.
The nonmetal seal washer of corrosion-and high-temp-resistant expands with the stainless steel ring pedestal, make and keep good sealing property between stainless steel ring seat matrix and the friction ring, the radial force that this expansion simultaneously imposes on friction ring is flexible, and it is non-rigid, make that the distortion of friction ring end face is minimum, guaranteed the seal face planeness.By select corrosion resistant stainless steel as ring seat body material and the nonmetallic material of selecting corrosion-and high-temp-resistant as seal washer, mechanical seal ring can use the work condition environment that high temperature is arranged again in existing corrosion for a long time.
The utility model corrosion-resistant and high-temperature resistant mechanical seal ring insert is simple, cost is low
Description of drawings
Fig. 1 is an existing machinery seal ring structure schematic representation.
Fig. 2 is the utility model mechanical seal ring structural representation.
Embodiment
A kind of corrosion-resistant and high-temperature resistant mechanical seal ring as Fig. 2, is shaped on the thin body of flanging of thickness 1mm in corrosion resistant stainless steel ring pedestal 1 upper end, the thin height degree of flanging is identical with the thin body fixed platform width of flanging of friction ring 3 end faces below.The Expanded graphite seal washer 2 of in ring seat body 1, packing into, the friction ring 3 of on seal washer 2, packing into, 2mm is shaped on the thin body fixed platform of wide 3mm flanging below friction ring 3 end faces, and the thin body of the flanging on the ring seat body 1 is fixed on the thin body fixed platform of flanging of friction ring 3 end faces below to in-flanges.Fixed friction ring 3 and compression seal packing ring 2.
Claims (1)
1, a kind of corrosion-resistant and high-temperature resistant mechanical seal ring, it is characterized in that: be shaped on the thin body of flanging in ring seat body upper end, the seal washer of in the ring seat body, packing into, the friction ring of on seal washer, packing into, below the friction ring end face, be shaped on the thin body fixed platform of flanging, the thin body of flanging on the ring seat body is fixed on the thin body fixed platform of flanging of friction ring end face below to in-flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202195555U CN201301961Y (en) | 2008-11-18 | 2008-11-18 | Corrosion-resisting high-temperature mechanical sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202195555U CN201301961Y (en) | 2008-11-18 | 2008-11-18 | Corrosion-resisting high-temperature mechanical sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301961Y true CN201301961Y (en) | 2009-09-02 |
Family
ID=41085587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202195555U Expired - Fee Related CN201301961Y (en) | 2008-11-18 | 2008-11-18 | Corrosion-resisting high-temperature mechanical sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301961Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679065A (en) * | 2012-04-27 | 2012-09-19 | 大连华阳光大密封有限公司 | Transition ring for rotary joint |
| CN104696529A (en) * | 2014-12-08 | 2015-06-10 | 北京交通大学 | Method for improving pressure-resistant capacity and working reliability of magnetic fluid seal in high-temperature working environment |
| CN108131451A (en) * | 2018-02-09 | 2018-06-08 | 安徽中烟再造烟叶科技有限责任公司 | Yankee cylinder steam swivel joint end ring mechanism |
-
2008
- 2008-11-18 CN CNU2008202195555U patent/CN201301961Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679065A (en) * | 2012-04-27 | 2012-09-19 | 大连华阳光大密封有限公司 | Transition ring for rotary joint |
| CN104696529A (en) * | 2014-12-08 | 2015-06-10 | 北京交通大学 | Method for improving pressure-resistant capacity and working reliability of magnetic fluid seal in high-temperature working environment |
| CN108131451A (en) * | 2018-02-09 | 2018-06-08 | 安徽中烟再造烟叶科技有限责任公司 | Yankee cylinder steam swivel joint end ring mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103732962B (en) | Safety check | |
| CN102037260B (en) | Metal gasket | |
| CN201301961Y (en) | Corrosion-resisting high-temperature mechanical sealing ring | |
| SG179428A1 (en) | Metallic seal for use in highly- corrosive oil and gas environments | |
| CN202082393U (en) | High-airtightness seal ring | |
| CN205371656U (en) | Bidirectional metal hard seal butterfly valve | |
| CN2926698Y (en) | Fixed membrane metal sealed spherical valve | |
| CN201715015U (en) | Metal-seal fixed ball valve | |
| CN204284478U (en) | LNG heavy caliber cast steel stop valve | |
| CN105443786A (en) | Elastic compensation sealing inner part structure of telescopic valve | |
| CN201087715Y (en) | Double C shaped metal sealing device | |
| CN201090736Y (en) | Core level metal graphite washer | |
| CN204852428U (en) | Titanium material ball valve sealed firmly | |
| CN206017766U (en) | Fluorine-lined regulating butterfly valve | |
| CN202032103U (en) | Novel butterfly valve | |
| CN204042065U (en) | High Temperature High Pressure regulates ball valve balance type metal seat valve sealing configuration | |
| CN204213363U (en) | High pressure butterfly valve | |
| CN202118277U (en) | Double-action isolating valve | |
| CN201705984U (en) | U-shaped elastic sealing structure | |
| JP2018076903A (en) | Sealing device | |
| CN207178723U (en) | A kind of floating type hard sealing structure in metal valve | |
| CN202418706U (en) | High-temperature and high-pressure floating-ball hard-sealed slag-locking ball valve | |
| CN201110386Y (en) | Cast iron metal hard sealing butterfly valve | |
| CN201487371U (en) | Anti-oxidation high-pressure sealing stuffing box component | |
| CN203784356U (en) | T-shaped elastic valve seat sealing structure of V-shaped adjusting ball valve |
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: 20090902 Termination date: 20101118 |