CN103047416B - Be suitable for the seal ring assembly of pressurized container - Google Patents
Be suitable for the seal ring assembly of pressurized container Download PDFInfo
- Publication number
- CN103047416B CN103047416B CN201210582132.0A CN201210582132A CN103047416B CN 103047416 B CN103047416 B CN 103047416B CN 201210582132 A CN201210582132 A CN 201210582132A CN 103047416 B CN103047416 B CN 103047416B
- Authority
- CN
- China
- Prior art keywords
- seal ring
- ring
- helical spring
- backup
- rubber
- 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
Landscapes
- Sealing Devices (AREA)
Abstract
The present invention relates to a kind of seal ring assembly being suitable for pressurized container, comprise seal ring main body and backup ring, described backup ring comprises ring skeleton, described ring skeleton is coated with rubber, described ring skeleton is the helical spring of end-to-end, the Placement of described backup ring and described seal ring main body for: the circlip groove being used for backup ring described in setting-in is set in seal ring main body, described circlip groove is positioned at one end of the contact sealing surface of the pressure-bearing side of described seal ring, described backup ring is arranged on described circlip groove, described backup ring and described circlip groove closely cooperate, or be that described backup ring is arranged on the pressure-bearing side of described seal ring main body, contact with described seal ring prevailing pressure.Backup ring of the present invention and seal ring main body with the use of, can effectively prevent the root of seal ring main body under pressure from extruding from the gap of sealing surface, and back-up ring is as independently product, manufacturing process is simple, and reject ratio is low.
Description
Technical field
The present invention relates to a kind of seal ring assembly being suitable for pressurized container.
Background technique
For the rubber seal worked under condition of high voltage, extrude from gap for preventing the root of seal ring under pressure, usual meeting is at the pressure-bearing side installation nylon of seal ring, the back-up ring that the hard material such as teflon or polyether-ether-ketone manufactures, these back-up rings are designed to ring-shaped more, be divided into opening and the not form such as opening, be arranged on the position that the root of seal ring pressure-bearing side etc. is suitable for, to produce excessive deformation by the back-up ring baffle seal circle of these hard in the corresponding direction because being subject to pressure medium, avoid seal ring to be extruded from gap and cause seal failure, when the seal ring of these back-up rings and large gauge (size) supports the use, there are the following problems in meeting: for reducing packaging volume, usually can by its suitable twisting before the seal ring packaging of large gauge, folding to reduce volume, but when being provided with hard back-up ring, because folding meeting makes nylon, the back-up ring that the hard material such as teflon or polyether-ether-ketone is made is badly damaged inefficacy, therefore can not fold, this just give packaging and accumulating even in-site installation bring very large trouble.Brought defect can not be folded for overcoming hard back-up ring, people attempt adopting the garter spring of end-to-end to substitute hard back-up ring, but there is pitch gap due to helical spring and can arbitrarily bend, direct employing helical spring substitutes hard back-up ring can not play due technique effect, thus, someone attempts direct for garter spring sulfuration in seal ring, helical spring is fixed in seal ring, to overcome because of the independently helical spring problem that arbitrarily blocking effect that causes of movement is not good, but because helical spring relative volume is in a mold less, free space is large, very easily in sulfidation, depart from due position because being out of shape or move, therefore to manufacture the conforming product rate of seal ring often very low for this mode.
Summary of the invention
For overcoming the above-mentioned deficiency of prior art, the object of the present invention is to provide a kind of seal ring assembly being suitable for pressurized container, both instant packed transport, significantly can reduce again the loss that bad product causes.
The technical solution used in the present invention is: a kind of seal ring assembly being suitable for pressurized container, comprise seal ring main body and backup ring, it is characterized in that described backup ring comprises ring skeleton, described ring skeleton is coated with rubber, described ring skeleton is the helical spring of end-to-end, the Placement of described backup ring and described seal ring main body for: the circlip groove being used for backup ring described in setting-in is set in seal ring main body, described circlip groove is positioned at one end of the contact sealing surface of the pressure-bearing side of described seal ring, described backup ring is arranged on described circlip groove, described backup ring and described circlip groove closely cooperate, or be that described backup ring is arranged on the pressure-bearing side of described seal ring main body, contact with described seal ring prevailing pressure.
The cross section of described backup ring can rectangular, trapezoidal, triangle or stepped.
The hardness of described rubber is preferably not less than the hardness of the seal ring be mated, and the hardness of described rubber is preferably IRHD70 ~ 90 degree.
Described rubber can be nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, butyl rubber, neoprene, carboxyl butyronitrile, chlorohydrin rubber, polyacrylate or fluorine rubber.
Described ring skeleton can be the helical spring of end-to-end, and described helical spring can be carbon steel wire helical spring or Stainless Steel Wire helical spring.
Described helical spring cross section can rounded or rectangle.
Described helical spring wire diameter is preferably 0.3 ~ 1.5mm.
Described helical spring spring ring axial clearance is preferably 0 ~ 5mm.
Described helical spring external diameter is preferably 2 ~ 10mm.
The using method of described backup ring adopts any one mode following: (1) arranges the circlip groove being used for backup ring described in setting-in in seal ring main body, described circlip groove is positioned at one end of the contact sealing surface of the pressure-bearing side of described seal ring, be arranged on by described backup ring on described circlip groove, described backup ring and described circlip groove closely cooperate; (2) described backup ring is arranged on the pressure-bearing side of described seal ring main body, contacts with described seal ring prevailing pressure.
Beneficial effect of the present invention: backup ring of the present invention can be twisted by suitable, folding reduction is packed and transportation volume, compared to employing nylon, instant packed and the transport of the back-up ring made of teflon or polyetheretherketonematerials materials, better compared to the back-up ring anti-high pressure extrusion performance adopting single rubber material to make, the ring skeleton of backup ring of the present invention can effectively ensure product size and shape of product in sulfidation, avoid because the flowing of sizing material in sulfidation causes the situation such as camber of spring or positioning to occur, simpler compared to the seal ring manufacturing process of embedded metal sulphide skeleton, defective products rate is lower.
Backup ring of the present invention is arranged on the root of seal ring main body pressure-bearing side, can effectively prevent the root of seal ring main body under pressure from extruding from the gap of sealing surface, simultaneously, backup ring of the present invention is as an independently product, can support the use with the seal ring of various structures form, Applicable scope is more extensive.
Accompanying drawing explanation
Fig. 1 is rectangular in cross-section of the present invention and the schematic cross-section of the rounded backup ring in helical spring cross section;
Fig. 2 is that cross section of the present invention is triangular in shape and the schematic cross-section of the backup ring that helical spring cross section is rounded;
Fig. 3 is rectangular in cross-section of the present invention and the schematic cross-section of the backup ring of helical spring rectangular in cross-section;
Fig. 4 be a kind of embodiment of backup ring of the present invention and y-type seal ring with the use of sectional view;
Fig. 5 be a kind of embodiment of backup ring of the present invention and lip-type packing with the use of sectional view.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the invention provides a kind of seal ring assembly being suitable for pressurized container, comprise seal ring main body and backup ring, described backup ring comprises ring skeleton 1, described ring skeleton is coated with rubber 2, ring skeleton is placed in mould, after the techniques such as sulfidization molding, this product can be obtained, this processing mode with by compared with in direct for annular spring sulfuration to seal ring, obviously reduce due to ring skeleton moveable scope in mould and be easy to control, thus avoid and direct for annular spring sulfuration moved the very high and uncontrollable problem of quality of product of the reject rate caused to seal ring Nei Shiyin spring position in course of working.
The cross section of described backup ring can rectangular, trapezoidal, triangle or stair-stepping above-mentioned shape, uses under adapting to being engaged in different operating environment with the seal ring of different structure shape.When the Cross section Design of described backup ring is triangular in shape, be preferably right-angled triangle, and the outer rim of backup ring or inner edge are the right angle side (respectively the corresponding pressure from seal ring different direction) of right-angled triangle, when the sectional shape of described backup ring is trapezoidal, the outer rim of preferred back-up ring or inner edge are trapezoidal bottom (respectively the corresponding pressure from seal ring different direction), to make described backup ring be that face contacts with the cell wall of seal groove installing seal ring in use, more effectively play the support anti-extrusion effect to seal ring.
The hardness of described rubber can be identical with the hardness of seal ring or a little more than the hardness of seal ring, be preferably the hardness a little more than seal ring, the anti-extrusion ability of described backup ring can be improved, the hardness of described rubber is preferably IRHD70 ~ 90 degree, as IRHD70 degree, IRHD80 degree or IRHD90 degree.
Described rubber can be identical with the material of seal ring, also can be different from the material of seal ring, and described rubber can be nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, butyl rubber, neoprene, carboxyl butyronitrile, chlorohydrin rubber, polyacrylate or fluorine rubber.
Described ring skeleton can be the helical spring of end-to-end, described helical spring can carry out end-to-end by the mode such as welding or screw up, described helical spring can be carbon steel wire helical spring or Stainless Steel Wire helical spring, the spring that the material that also can be suitable for doing spring for other is made.
Described helical spring cross section can rounded or rectangle.
Described helical spring wire diameter is preferably 0.3 ~ 1.5mm, as 0.3mm, 0.5mm, 0.8mm, 1.0mm or 1.5mm.Described helical spring spring ring axial clearance is preferably 0 ~ 5mm, as 0mm, 1.0mm, 2.0mm, 3.0mm, 4.0mm or 5.0mm.When height and the thickness permission of the shoulder of described lip-type packing, described helical spring external diameter is preferably 2 ~ 10mm, as 2mm, 4mm, 5mm, 8mm or 10mm.
Preferably, the cross-sectional width of described backup ring is substantially identical with described helical spring external diameter, more close better (theoretical value is identical), only need ensure that described helical spring does not occur positioning phenomenon in sulfidation.
Described backup ring can by suitable to twist, foldingly reduce packaging and transportation volume, compared to adopting the instant packed and transport of the back-up ring made of nylon, teflon or polyetheretherketonematerials materials, better compared to adopting the anti-high pressure extrusion performance of back-up ring made of single rubber material, simpler compared to the seal ring manufacturing process of embedded metal sulphide skeleton, defective products rate is lower.
Backup ring of the present invention, as an independently product, can support the use with the seal ring of various structures form, applied widely.
The using method of described backup ring adopts any one mode following:
(1) circlip groove being used for backup ring described in setting-in is set in seal ring main body, described circlip groove is positioned at one end of the contact sealing surface of the pressure-bearing side of described seal ring, be arranged on by described backup ring on described circlip groove, described backup ring and described circlip groove closely cooperate;
(2) described backup ring is arranged on the pressure-bearing side of described seal ring main body, contacts with described seal ring prevailing pressure.
The above-mentioned any method of concrete employing need be determined according to seal ring and the shape of backup ring and the size of backup ring.Usually described backup ring is processed into external diameter identical with the external diameter of seal ring, internal diameter is not less than the size of the internal diameter of seal ring, when the internal diameter of described backup ring is processed into the internal diameter being greater than described seal ring, and the height of described back-up ring is when being less than the height of described seal ring, in the pressure-bearing side of described seal ring (under pressure, press to the side of cell wall of the seal groove installing seal ring) one end of contact sealing surface process the sectional shape circlip groove identical with the sectional shape of described backup ring, described backup ring and seal ring with the use of time, described backup ring is arranged in described circlip groove, seal ring with backup ring is arranged in the seal groove for installing described seal ring, when the height of described backup ring is identical with the height of described seal ring, described backup ring is arranged on the pressure-bearing side of described seal ring main body, the two pressure contact (being applicable to the back-up ring of rectangular in cross-section) or the pressure-bearing side of described seal ring is cut away a part (be applicable to the backup ring of rectangular in cross-section and the size of seal groove only can install seal ring), the sectional shape of the part cut away is identical with the sectional shape of described backup ring (part namely cut away is identical with described backup ring size), or process the circlip groove (being applicable to the back-up ring of other shape beyond rectangular in cross-section) that a sectional shape is identical with the sectional shape of described backup ring, described backup ring and seal ring with the use of time, described backup ring be adjacent in the pressure-bearing side of described seal ring or be arranged in described circlip groove, again described backup ring and seal ring are arranged in seal groove jointly, (mainly y-type seal ring is applicable to when the internal diameter of described backup ring is processed into identical with the internal diameter of described seal ring, now internal diameter and the external diameter of seal ring refer to internal diameter and the external diameter of the root be connected with two lip limits), described backup ring is arranged on the pressure-bearing side of described seal ring main body, the two pressure contact (being applicable to the back-up ring of rectangular in cross-section) or the pressure-bearing side of described seal ring is cut away a part (be applicable to the backup ring of rectangular in cross-section and the size of seal groove only can install seal ring), the sectional shape of the part cut away is identical with the sectional shape of described back-up ring (part namely cut away is identical with described backup ring size), or process the circlip groove (being applicable to the back-up ring of other shape beyond rectangular in cross-section) that a sectional shape is identical with the sectional shape of described backup ring, described backup ring and seal ring with the use of time, described backup ring be adjacent in the pressure-bearing side of described seal ring or be arranged in described circlip groove, again described backup ring and seal ring are arranged in the seal groove for installing described seal ring jointly.After the structure of above-mentioned backup ring and using method are applicable to assemble and use, pressure is from the seal ring of side direction in seal ring and/or y-type seal ring, when seal ring is that when assembling the seal ring using rear pressure from the lateral direction of seal ring, described backup ring is correspondingly processed into the shape of the external diameter that internal diameter is identical with the internal diameter of seal ring, external diameter is not more than seal ring.
Described backup ring be arranged on the pressure-bearing side of seal ring and seal ring with the use of, can effectively prevent the root of seal ring under pressure from extruding from the gap of sealing surface.
Claims (9)
1. one kind is suitable for the seal ring assembly of pressurized container, comprise seal ring main body and backup ring, it is characterized in that described backup ring comprises ring skeleton, described ring skeleton is coated with rubber, described ring skeleton is the helical spring of end-to-end, the Placement of described backup ring and described seal ring main body for: the circlip groove being used for backup ring described in setting-in is set in seal ring main body, described circlip groove is positioned at one end of the contact sealing surface of the pressure-bearing side of described seal ring, described backup ring is arranged on described circlip groove, described backup ring and described circlip groove closely cooperate, or be that described backup ring is arranged on the pressure-bearing side of described seal ring main body, contact with described seal ring prevailing pressure.
2. seal ring assembly as claimed in claim 1, is characterized in that the rectangular in cross-section of described backup ring, trapezoidal, triangle or stepped.
3. seal ring assembly as claimed in claim 2, it is characterized in that the hardness of described rubber is not less than the hardness of the seal ring be mated, the hardness of described rubber is IRHD70 ~ 90 degree.
4. seal ring assembly as claimed in claim 3, is characterized in that described rubber is nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, butyl rubber, neoprene, carboxyl butyronitrile, chlorohydrin rubber, polyacrylate or fluorine rubber.
5. the seal ring assembly as described in claim 1,2,3 or 4, is characterized in that described helical spring is carbon steel wire helical spring or Stainless Steel Wire helical spring.
6. seal ring assembly as claimed in claim 5, is characterized in that the rounded or rectangle in described helical spring cross section.
7. seal ring assembly as claimed in claim 6, is characterized in that described helical spring wire diameter is 0.3 ~ 1.5mm.
8. seal ring assembly as claimed in claim 7, is characterized in that described helical spring spring ring axial clearance is 0 ~ 5mm.
9. seal ring assembly as claimed in claim 8, is characterized in that described helical spring external diameter is 2 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582132.0A CN103047416B (en) | 2012-12-28 | 2012-12-28 | Be suitable for the seal ring assembly of pressurized container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582132.0A CN103047416B (en) | 2012-12-28 | 2012-12-28 | Be suitable for the seal ring assembly of pressurized container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103047416A CN103047416A (en) | 2013-04-17 |
| CN103047416B true CN103047416B (en) | 2015-11-25 |
Family
ID=48060178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210582132.0A Expired - Fee Related CN103047416B (en) | 2012-12-28 | 2012-12-28 | Be suitable for the seal ring assembly of pressurized container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103047416B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237841B (en) * | 2014-07-11 | 2018-07-27 | 上海赋瑞密封材料有限公司 | A kind of resistance to refrigerant is without asbestos seal plank and preparation method thereof |
| CN109373087A (en) * | 2018-11-16 | 2019-02-22 | 江阴金用管道有限公司 | Heavy caliber polyethylene socket pipe member of the bellmouth with skeleton |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813104A (en) * | 1972-07-18 | 1974-05-28 | Goodrich Co B F | Sealing ring |
| JP2008256193A (en) * | 2007-03-09 | 2008-10-23 | Uchiyama Mfg Corp | Vibration damping washer |
| CN201448434U (en) * | 2009-06-12 | 2010-05-05 | 咸阳海龙复合材料有限责任公司 | Spring type anti-loose composite seal washer |
| CN202040217U (en) * | 2011-05-07 | 2011-11-16 | 闵乐宁 | Bearing seal check ring |
| CN202040216U (en) * | 2011-05-07 | 2011-11-16 | 闵乐宁 | Sealing retainer ring for bearing |
| CN202158187U (en) * | 2011-07-31 | 2012-03-07 | 任利娜 | Anti-extrusion deformation gasket |
-
2012
- 2012-12-28 CN CN201210582132.0A patent/CN103047416B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813104A (en) * | 1972-07-18 | 1974-05-28 | Goodrich Co B F | Sealing ring |
| JP2008256193A (en) * | 2007-03-09 | 2008-10-23 | Uchiyama Mfg Corp | Vibration damping washer |
| CN201448434U (en) * | 2009-06-12 | 2010-05-05 | 咸阳海龙复合材料有限责任公司 | Spring type anti-loose composite seal washer |
| CN202040217U (en) * | 2011-05-07 | 2011-11-16 | 闵乐宁 | Bearing seal check ring |
| CN202040216U (en) * | 2011-05-07 | 2011-11-16 | 闵乐宁 | Sealing retainer ring for bearing |
| CN202158187U (en) * | 2011-07-31 | 2012-03-07 | 任利娜 | Anti-extrusion deformation gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103047416A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203717926U (en) | Sealing assembly | |
| CN103975167B (en) | Sealing member, connects and respective application with the bolt of the seal | |
| CN106104105B (en) | Sealing device | |
| JP2007071329A (en) | Back-up ring | |
| US20100084827A1 (en) | Self-retaining seal for undercut groove | |
| CN106068415A (en) | Sealing device | |
| CN103047416B (en) | Be suitable for the seal ring assembly of pressurized container | |
| CN203297618U (en) | Sealing ring anti-disengaging sealing structure and sealing ring groove thereof | |
| CN203297617U (en) | Sealing ring anti-disengaging seal structure and sealing ring groove thereof | |
| CN203023478U (en) | Lip seal assembly | |
| CN201925009U (en) | Sealing ring for engine cooling water pipe | |
| CN202158187U (en) | Anti-extrusion deformation gasket | |
| CN203670792U (en) | Elastic filler and valve using the filler | |
| CN203023474U (en) | Lip seal assembly provided with supporting spring at lip port | |
| CN203023473U (en) | Seal assembly | |
| CN202348816U (en) | Ultrahigh-pressure hydraulic cylinder with sealing follow-up rings | |
| CN201547232U (en) | Leak-proof sealing gasket | |
| CN206943428U (en) | A kind of automobile-used PTFE rotary oil seals with backflow slot structure | |
| CN215173235U (en) | Pressure early warning sealing cap and air conditioner | |
| CN205504033U (en) | Energization type elasticity is sealed valve holder structure and is used its two eccentric butterfly valve | |
| CN105202089A (en) | Integrated side pressure V-shaped spring and sealing ring with same | |
| CN205745299U (en) | A kind of automobile hydraulic supports sealing ring | |
| CN209622191U (en) | A kind of leakage preventing mechanism for tank truck shut-off valve | |
| CN103542091B (en) | Seal ring and there is the helical-lobe compressor of sealing ring | |
| CN204664712U (en) | A kind of spool end is provided with the pipe joint of vulcanized rubber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171017 Address after: 510700 Whampoa, Guangdong Province, Mao Road, District No. 828, No. Patentee after: GUANGZHOU MECHANICAL ENGINEERING RESEARCH INSTITUTE Co.,Ltd. Address before: 100096, No. ten, East Road, building materials City, Beijing, Haidian District Co-patentee before: BEIJING SEALING TECHNICAL INST Patentee before: BEIJING HUADE GUANGYAN SEALS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20211228 |