CN103267129A - Split type mechanical sealing part of elastic sealing ring with rectangular cross section - Google Patents
Split type mechanical sealing part of elastic sealing ring with rectangular cross section Download PDFInfo
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- CN103267129A CN103267129A CN2013101858299A CN201310185829A CN103267129A CN 103267129 A CN103267129 A CN 103267129A CN 2013101858299 A CN2013101858299 A CN 2013101858299A CN 201310185829 A CN201310185829 A CN 201310185829A CN 103267129 A CN103267129 A CN 103267129A
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- ring
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- rectangular cross
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- 238000007789 sealing Methods 0.000 title claims abstract description 52
- 238000009434 installation Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000007363 ring formation reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract 9
- 230000008602 contraction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
A split type mechanical sealing part of an elastic sealing ring with a rectangular cross section comprises a static ring base flange, a static ring installed on the upper middle portion of the static ring base flange, a static ring sealing ring arranged on the outer side of the static ring, a movable ring arranged above the static ring, a movable ring sealing ring arranged in the movable ring, a movable ring base arranged on the upper portion of the movable ring and the like. The static ring and the movable ring are both members opened side by side from the center, the static ring sealing ring and the movable ring sealing ring are formed by overlapping elastic sealing strips with rectangular cross sections through two end portions. The split type mechanical sealing part changes integral mechanical sealing into split type mechanical sealing, the static sealing ring and the movable sealing ring which are formed by overlapping the elastic sealing strips with the cross sections through the end portions allow small amount of expansion and contraction, consistency in continuity and radial deformation amount cannot be influenced, and the overlapping surfaces are naturally bonded together by means of pressure of a container to be sealed, so that sealing effect is ensured, and maintenance and replacement of damageable parts in mechanical sealing can be finished under the condition that parts on a shaft do not need to be detached.
Description
Technical field
The present invention is mechanical seal, more particularly, is split type mechanical seal.
Background technique
Mechanical seal keeps a kind of means of its closed state to be widely used transferring power the time as rotatingshaft in the closed container, be the visual plant of industries such as petrochemical industry as closed container such as reactor, it is one of main production plant of whole chemical process flow, its running shaft mechanical seal device is reactor and even whole process flow one of the position the most frequently of may breaking down, in case sealing is broken down when needing maintenance, integrated type mechanical seal device dismounting trouble, service cycle is long, therefore people are devoted to research and develop split type mechanical seal always, in the hope of finish the replacing of mechanical sealing element under the situation of not dismantling component on the axle.The split type mechanical seal that exists is at present adopted the mode of overlap joint or socket to O-ring seals, or connects the O-ring seals of replacement integrated type mechanical seal by bonding.For this Placement of elastic seal ring flaw being arranged still obviously is not stable and firm connectivity scenario, need the axial circulation play when particularly the rotating ring O-ring seals is worked, this connection just more cannot say for sure to demonstrate,prove its connection and sealing reliability, the inventor drew close the formation integral, flexible seal ring sealing of fitting at split surface once adopt two each self-forming semicircles of ring-type O-ring seals in Technological improvement plan before this after, this patent of invention number is ZL200910208462.1, make moderate progress though reliability is relative with sealing, processing cost and fitting operation are all brought adverse effect.
Summary of the invention
The invention provides a kind of split type mechanical seal that has the rectangular cross-section elastic seal ring, change the unalterable structure of traditional O shape elastic seal ring, technology is simple, and is easy to operate, and effective.
It is as follows that the present invention solves the problems of the technologies described above the technological scheme that adopts:
Have the split type mechanical seal of rectangular cross-section elastic seal ring, comprise the stationary seat flange, be installed in the seal ring of moving ring of the stationary ring seal ring of stationary ring, the stationary ring outside of stationary seat flange middle and upper part, the rotating ring that is positioned at the stationary ring top, rotating ring inside and rotating ring top and be used for the rotating seat etc. of firm rotating ring, wherein easily damaged parts stationary ring, rotating ring are all split part in the center of making, to be the rectangular cross-section elastic sealing strip form by the two end part overlap joint for easily damaged parts stationary ring seal ring and seal ring of moving ring, equates everywhere with width between vertical two faces of faying surface.Change stationary ring in installation and maintenance, rotating ring, the stationary ring seal ring, during seal ring of moving ring, the two end part overlap that forms the rectangular cross-section elastic sealing strip of stationary ring seal ring and seal ring of moving ring is made thickness to diminish gradually to the termination and makes it form the gradient, in the installation process, two face diameters vertical with faying surface are to installation, abut in inner cylinder and outer cylinder with stationary ring seal ring or seal ring of moving ring counterpart respectively, bridging arrangement is at axial overlap, this structure has guaranteed the ring-type continuity of stationary ring seal ring or seal ring of moving ring, the radial elastic amount of deformation equates everywhere, and allow stationary ring seal ring or seal ring of moving ring flexible on a small quantity, the pressure direction of sealing is axially, just in time make faying surface fit naturally, pressure increases, applying power increases thereupon, so sealing effect can keep good by nature.
As another kind of structure of the present invention, change stationary ring in installation and maintenance, rotating ring, the stationary ring seal ring, during seal ring of moving ring, it is that half of Stamping Steel Ribbon global sections thickness forms step that the two end part overlap that forms the rectangular cross-section elastic sealing strip of stationary ring seal ring and seal ring of moving ring is made thickness, total thickness behind the overlap joint of two ends equals the thickness of Stamping Steel Ribbon global sections, installation process as hereinbefore, this structure has guaranteed the ring-type continuity of stationary ring seal ring or seal ring of moving ring equally, the radial elastic amount of deformation equates everywhere, and allow stationary ring seal ring or seal ring of moving ring flexible on a small quantity, the pressure direction of sealing is axially, just in time make faying surface fit naturally, pressure increases, applying power increases thereupon, so sealing effect can keep good by nature.
More than introduced the rectangular cross-section elastic sealing strip and overlapped the example that forms stationary ring seal ring and seal ring of moving ring realization sealing by two end part, similarly method formation seal ring is realized sealing and is all belonged to category of the present invention.
The invention has the beneficial effects as follows when integrated type mechanical seal is modified into split type mechanical seal, the rectangular cross-section elastic sealing strip allows a small amount of flexible conformity that does not influence its continuity and radial-deformation by stationary ring seal ring and the seal ring of moving ring that the end bridging arrangement forms, faying surface is fitted naturally by the container pressure that will seal, guaranteed sealing effect, and manufacturing is simple, has realized finishing under the situation of not dismantling component on the axle maintain and replace of mechanical seal easily worn part.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the split type mechanical seal example structure schematic representation that has the rectangular cross-section elastic seal ring.
Fig. 2 is the longitdinal cross-section diagram of selecting stationary ring, stationary ring seal ring, rotating ring, seal ring of moving ring part from Fig. 1.
Fig. 3 is the lateral plan of selecting stationary ring, stationary ring seal ring, rotating ring, seal ring of moving ring part from Fig. 1.
It is that half of Stamping Steel Ribbon global sections thickness forms the structural type of step that the two end part overlap that Fig. 4 schematically represents to form the rectangular cross-section elastic sealing strip of stationary ring seal ring and seal ring of moving ring is made thickness.
Among the figure, 1. stationary seat flange, 2. stationary ring, 3. stationary ring seal ring, 4. rotating ring, 5. seal ring of moving ring, 6. rotating seat, the rectangular cross-section elastic sealing strip faying surface of 31. stationary ring seal rings, 32. sealing surface between the groove bottom on stationary ring seal ring and the stationary ring, 33. sealing surface between stationary ring seal ring and the stationary seat flange, the rectangular cross-section elastic sealing strip faying surface of 51. seal ring of moving ring, the sealing surface between 52. seal ring of moving ring and the axle, 53. sealing surface between the groove bottom on seal ring of moving ring and the rotating ring, 351. the faying surface of step bridging arrangement is made in elastic sealing strip end, rectangular cross-section, when adopting this structure, faying surface 31 and faying surface 51 all make faying surface 351 forms into.
Embodiment
Fig. 1 is the split type mechanical seal embodiment who has the rectangular cross-section elastic seal ring, wherein stationary ring 2, rotating ring 4 all are that part is split at the center, stationary ring seal ring 3 and seal ring of moving ring 5 are that the rectangular cross-section elastic sealing strip forms by the two end part overlap joint, the two end part overlap thickness that forms the rectangular cross-section elastic sealing strip of stationary ring seal ring 3 and seal ring of moving ring 5 diminishes gradually to the termination, and the rectangular cross-section elastic sealing strip is constant perpendicular to the width unanimity of faying surface.When changing or installing, two face diameters vertical with faying surface are to installation, form inner cylinder and the outer cylinder of stationary ring seal ring 3 or seal ring of moving ring 5 respectively, bridging arrangement is at axial overlap, for seal ring of moving ring 5, consistent two the constant sides of width rely on the trench bottom surfaces 53 on axial plane 52 and the rotating ring respectively and produce after installation has the amount of deformation that Seal Design requires, the total thickness everywhere of maintenance overlap and seal ring integral body is the approximate conformity of thickness in the same way, the a small amount of flexible continuity of seal ring integral loop and the uniformity of radial elastic amount of deformation everywhere of not influencing that this bridging arrangement allows seal ring, because the pressure direction of sealing is just in time axially making faying surface 51 fit naturally, pressure increases, applying power also increases thereupon, so sealing effect can keep good by nature.Same reason, for stationary ring seal ring 3, consistent two the constant sides of width rely on trench bottom surfaces 32 and the stationary seat flange 1 inner seal face 33 on the stationary ring 2 respectively and have the amount of deformation that Seal Design requires, kept with the seal ring integral body conformity of thickness in the same way and the total thickness everywhere of overlap is approximate, the a small amount of flexible continuity of seal ring integral loop and the uniformity of radial elastic amount of deformation everywhere of not influencing that bridging arrangement allows seal ring, because the pressure direction of sealing just in time makes faying surface 31 fit naturally, pressure increases, applying power also increases thereupon, so sealing effect can keep good by nature, if bridging arrangement makes the step joint form of Fig. 4 into, the faying surface 51 of the faying surface 31 of stationary ring seal ring 3 and seal ring of moving ring 5 all will become the form of faying surface 351 so.It is firm by stationary seat flange 1 to split part stationary ring 2, and it is firm by rotating seat 6 and other associated components to split part rotating ring 4.
Claims (4)
1. have the split type mechanical seal of rectangular cross-section elastic seal ring, comprise the stationary seat flange, be installed in the seal ring of moving ring of the stationary ring seal ring of stationary ring, the stationary ring outside of stationary seat flange middle and upper part, the rotating ring that is positioned at the stationary ring top, rotating ring inside and rotating ring top and be used for the rotating seat etc. of firm rotating ring, wherein stationary ring, rotating ring are all split part in the center of making, the invention is characterized in that stationary ring seal ring and seal ring of moving ring are the rectangular cross-section elastic sealing strip and form by the two end part overlap joint, equate everywhere with width between vertical two faces of faying surface.
2. according to the described split type mechanical seal that has the rectangular cross-section elastic seal ring of claim 1, the two end part overlap thickness that it is characterized in that forming the rectangular cross-section elastic sealing strip of stationary ring seal ring and the seal ring of moving ring formation gradient that diminishes gradually to the termination.
3. according to the described split type mechanical seal that has the rectangular cross-section elastic seal ring of claim 1, the two end part overlap thickness that it is characterized in that forming the rectangular cross-section elastic sealing strip of stationary ring seal ring and seal ring of moving ring is that half of Stamping Steel Ribbon global sections thickness forms step, and the total thickness behind the overlap joint of two ends equals the thickness of Stamping Steel Ribbon global sections.
4. according to claim 1 or the 2 or 3 described split type mechanical seals that have the rectangular cross-section elastic seal ring, it is characterized in that two face diameters vertical with faying surface are to installation, abut in inner cylinder and outer cylinder with stationary ring seal ring or seal ring of moving ring counterpart respectively, bridging arrangement is at axial overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101858299A CN103267129A (en) | 2013-05-12 | 2013-05-12 | Split type mechanical sealing part of elastic sealing ring with rectangular cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101858299A CN103267129A (en) | 2013-05-12 | 2013-05-12 | Split type mechanical sealing part of elastic sealing ring with rectangular cross section |
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| Publication Number | Publication Date |
|---|---|
| CN103267129A true CN103267129A (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101858299A Pending CN103267129A (en) | 2013-05-12 | 2013-05-12 | Split type mechanical sealing part of elastic sealing ring with rectangular cross section |
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| CN (1) | CN103267129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604613A (en) * | 2016-02-26 | 2016-05-25 | 哈尔滨汽轮机厂有限责任公司 | Novel elastic seal structure for steam turbine insertion tube |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325532Y (en) * | 1997-02-18 | 1999-06-23 | 蒙江凌 | Piston ring associated with piston crown with an overlapped connection section |
| CN1275689A (en) * | 2000-06-29 | 2000-12-06 | 葛亚峰 | Sealing ring, sheet, strip and use thereof |
| CN2586017Y (en) * | 2002-11-13 | 2003-11-12 | 王怀林 | Notch sealing loop |
| CN2742241Y (en) * | 2004-05-09 | 2005-11-23 | 西南石油学院 | Partial mechanical seal |
| CN2931818Y (en) * | 2006-07-26 | 2007-08-08 | 于占吉 | Lap joint sealing internal combustion engine piston ring |
| CN101725712A (en) * | 2009-11-02 | 2010-06-09 | 浙江长城减速机有限公司 | Complete split type mechanical seal for kettle |
| CN203363184U (en) * | 2013-05-12 | 2013-12-25 | 浙江长城减速机有限公司 | Split mechanical seal with rectangular-cross-section elastic sealing ring |
-
2013
- 2013-05-12 CN CN2013101858299A patent/CN103267129A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325532Y (en) * | 1997-02-18 | 1999-06-23 | 蒙江凌 | Piston ring associated with piston crown with an overlapped connection section |
| CN1275689A (en) * | 2000-06-29 | 2000-12-06 | 葛亚峰 | Sealing ring, sheet, strip and use thereof |
| CN2586017Y (en) * | 2002-11-13 | 2003-11-12 | 王怀林 | Notch sealing loop |
| CN2742241Y (en) * | 2004-05-09 | 2005-11-23 | 西南石油学院 | Partial mechanical seal |
| CN2931818Y (en) * | 2006-07-26 | 2007-08-08 | 于占吉 | Lap joint sealing internal combustion engine piston ring |
| CN101725712A (en) * | 2009-11-02 | 2010-06-09 | 浙江长城减速机有限公司 | Complete split type mechanical seal for kettle |
| CN203363184U (en) * | 2013-05-12 | 2013-12-25 | 浙江长城减速机有限公司 | Split mechanical seal with rectangular-cross-section elastic sealing ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604613A (en) * | 2016-02-26 | 2016-05-25 | 哈尔滨汽轮机厂有限责任公司 | Novel elastic seal structure for steam turbine insertion tube |
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Application publication date: 20130828 |
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| RJ01 | Rejection of invention patent application after publication |