CN201258969Y - Container type mechanical seal apparatus - Google Patents
Container type mechanical seal apparatus Download PDFInfo
- Publication number
- CN201258969Y CN201258969Y CNU200820109650XU CN200820109650U CN201258969Y CN 201258969 Y CN201258969 Y CN 201258969Y CN U200820109650X U CNU200820109650X U CN U200820109650XU CN 200820109650 U CN200820109650 U CN 200820109650U CN 201258969 Y CN201258969 Y CN 201258969Y
- Authority
- CN
- China
- Prior art keywords
- ring
- stationary ring
- mechanical sealing
- integrated mechanical
- rotating 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
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- Mechanical Sealing (AREA)
Abstract
The utility model relates to a seal device, in particular to an assembling mechanical seal device. The structure of the utility model comprises a static ring fixed on the end cover of the device; a movable ring is connected with the inside of the static ring; an alloy ring and a flexible lead ring are respectively arranged between the static ring and the movable ring; the flexible lead ring is fixed between the alloy ring and the static ring by a spring in a spring seat; the other side of the alloy ring is connected with the movable ring; and one side of the static ring is provided with a locking ring. Compared with the prior art, the assembling mechanical seal device has the characteristics of reasonable design, simple structure, good seal and vibration performance, less heat of friction pair, convenient and reliable mounting, and the like.
Description
Technical field
The utility model relates to a kind of seal arrangement, and a kind of integrated mechanical sealing device specifically is provided.
Background technique
Over more than 100 year, people adopt the multiple sealing material of filler one class, and the outside leakage rate of liquid from the liquid pump housing along main shaft constantly reduced.Although the liquid pump that adopts in the modern crafts flow process is still continued to use the most ancient Seal Design---stuffing box widely,, and be familiar with by the staff of factory again because its starting expense is low.
Yet, because the relation of environmental problem adopts the gland sealed method can not be accepted by people gradually, particularly at liquid commonplace, that corrosivity is stronger in the modern crafts flow process.Therefore, in actual applications, replace the gland sealed situation more and more with mechanical seal.
Mechanical seal is by a pair of or several to keeping down fitting and be equipped with auxiliary seal and reach the gland seal device of resistance leakage in elastic force (or magnetic force) effect of hydrodynamic pressure and compensation mechanism perpendicular to axle, the end face of making slide relative.But existing machinery sealing common configuration complexity is installed inconvenience, and is needed cooling, has just had very big narrow limitation.
Summary of the invention
The utility model is at above deficiency, and a kind of reasonable in design, simple in structure, sealing mechanical seal device that wear resistance is good, the friction pair heat is little, easy installation and reliable is provided.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of integrated mechanical sealing device, comprise and the fixing stationary ring of equipment end cap, be connected with rotating ring in the described stationary ring, be respectively arranged with alloy hoop and Expanded graphite ring between described stationary ring and the rotating ring, described Expanded graphite ring is fixed between alloy hoop and the stationary ring by the spring in the spring seat, described alloy hoop opposite side connects described rotating ring, and described stationary ring one side is provided with locking ring.
Rotating ring is the thin-walled cover that is provided with backpitch.
Stationary ring and rotating ring are outside equipped with the O RunddichtringO.
Described stationary ring is provided with stationary ring tightening silk hole.
Described rotating ring skin is arranged with metal clasp.
Cartridge seal is that 7 major parts such as rotating ring, stationary ring, spring, auxiliary seal ring, axle sleeve, gland, static seal packing ring are combined into together an aggregate, also can claim unit loading type machine envelope (CartridgeSeal).So-called unit loading type structure is exactly that all component collection in the mechanical seal parts is fitted together, can self-contained whole unloading when needing.According to the interrelated data statistics, the installation fault rate of common non-integrated mechanical sealing is higher than integrated mechanical sealing.Thereby adopt unit loading type modular mechanical sealing configuration just can reduce the generation of mechanical seal fault greatly.Because integrated mechanical sealing does not need installation personnel that any adjustment (as spring, sealing surface etc.) is carried out in mechanical seal, it is just passable only need to tight a bolt, thereby has improved the installation reliability of mechanical seal greatly.
Cartridge seal has become the trend of Development of Mechanical Seal now.Someone thinks that the price of integrated mechanical sealing is higher relatively, but angle from mixed economy efficient, integrated mechanical sealing has tangible comparative advantages, in the axle envelope field of heavy industry such as the higher oil of safety and reliability requirement, chemistry, integrated mechanical sealing is just at dominate.The APi682 of american petroleum TIA standard stipulates that clearly mechanical seal should be designed to unit loading type, and this is beyond doubt with the looked forward to the prospect development trend of mechanical seal of the form of standard; Integrated mechanical sealing is installed simple, and holding down bolt is removed limiting stopper and can be used, and amount of spring compression determines that in advance seal face also need not to open thereby be protected, and this has just exempted the professional context request to on-the-spot installation personnel.This as computer by DOS to WINDOW, to idiot camera, it has exempted the inconvenience that the user brings because professional knowledge is limited to image greatly by complicated optical system.
Stationary ring of the present utility model is fixed on the end cap that needs water-tight equipment, at this moment O type circle just plays a seal action, the static seal that Here it is often says, rely on locking ring that graphite annulus and alloy hoop closely are adjacent to then, thereby realize sealing,, do not make to rotate because of graphite annulus is to fix at spring seat, and alloy hoop moves with axle, the dynamic and static ring sealing face that Here it is often says.And spring can rely on elastic force to make the face of being association of activity and inertia continue to fit when axle carries out radial motion, the thin-walled cover of band backpitch is the emphasis of this sealing, at this moment because be at equipment operation, the thin-walled cover of backpitch rotates synchronously with axle, and the benefit of backpitch is arranged this moment is exactly can medium inwardly be carried endlessly, thereby the minimizing Seal cage is interior to moving, the pressure of stationary ring, and Media density is reduced, make the dynamic and static ring junction plane can not produce particle erosion, working life and using scope have been prolonged greatly, and rely on many places O RunddichtringO to realize secondary seal, make sealing effect more thorough.
Distinctive backpitch structure can effectively reduce the pressure of sealing surface, and some big particles and impurity can not be caused damage to rubbing surface, has effectively prolonged the working life of product.The secondary seal form has realized making sealing effect more good in the not repeatedly sealing under the complex situations of structure.
Mechanical seal of the present utility model be have or not water-cooled all can, applicability is wide, and adopts different quality materials under the different situations, is suitable for multiple medium, wear resistance is good, the friction pair heat is little, and is easy installation and reliable.
Sealing between the dynamic and static ring is to go up the suitable impacting force (specific pressure) of generation by elastic element (spring, bellows etc.) and seal fluid at the rotating ring of relative movement and the surface of contact of stationary ring (end face), the end face of two smooth surfaces is fitted tightly, keep between end face one deck as thin as a wafer liquid film and reach the effect of sealing, this tunic is that hydrodynamic pressure and static pressure are arranged, and it plays a part balance pressure and lubricated.Both ends of the surface are why must be highly bright and clean straight to be perfectly to fit and make the uniform condition of specific pressure in order to create to end face, realizes sealing with rotation relatively, reaches zero and reveals.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a kind of structure sectional view of integrated mechanical sealing device.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
Provide a most preferred embodiment below:
A kind of integrated mechanical sealing device, comprise and the fixing stationary ring 1 of equipment end cap, be connected with rotating ring 2 in the described stationary ring 1, be respectively arranged with alloy hoop 3 and Expanded graphite ring 4 between described stationary ring 1 and the rotating ring 2, described Expanded graphite 4 rings are fixed between alloy hoop 3 and the stationary ring 1 by the spring 6 in the spring seat 5, described alloy hoop 3 opposite sides connect described rotating ring 2, and described stationary ring 1 one sides are provided with locking ring 7.
Rotating ring 2 is for being provided with the thin-walled cover of backpitch.
Stationary ring 1 and rotating ring 2 are outside equipped with O RunddichtringO 8.
Described stationary ring 1 is provided with stationary ring tightening silk hole 9.
Described rotating ring 2 skins are arranged with metal clasp 10.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.
Claims (5)
1, a kind of integrated mechanical sealing device, comprise and the fixing stationary ring of equipment end cap, be connected with rotating ring in the described stationary ring, it is characterized in that, be respectively arranged with alloy hoop and Expanded graphite ring between described stationary ring and the rotating ring, described Expanded graphite ring is fixed between alloy hoop and the stationary ring by the spring in the spring seat, and described alloy hoop opposite side connects described rotating ring, and described stationary ring one side is provided with locking ring.
2, a kind of integrated mechanical sealing device according to claim 1 is characterized in that, described rotating ring is the thin-walled cover that is provided with backpitch.
3, a kind of integrated mechanical sealing device according to claim 1 is characterized in that, described stationary ring and rotating ring are outside equipped with the O RunddichtringO.
4, a kind of integrated mechanical sealing device according to claim 1 is characterized in that, described stationary ring is provided with stationary ring tightening silk hole.
5, a kind of integrated mechanical sealing device according to claim 1 is characterized in that, described rotating ring skin is arranged with metal clasp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820109650XU CN201258969Y (en) | 2008-08-05 | 2008-08-05 | Container type mechanical seal apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820109650XU CN201258969Y (en) | 2008-08-05 | 2008-08-05 | Container type mechanical seal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258969Y true CN201258969Y (en) | 2009-06-17 |
Family
ID=40773203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820109650XU Expired - Fee Related CN201258969Y (en) | 2008-08-05 | 2008-08-05 | Container type mechanical seal apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258969Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182679A (en) * | 2011-05-23 | 2011-09-14 | 上海南华换热器制造有限公司 | Double screw pump for food processing machine |
| CN105134957A (en) * | 2015-10-09 | 2015-12-09 | 张家港市兰航机械有限公司 | Shaft seal with labyrinth seal structure |
-
2008
- 2008-08-05 CN CNU200820109650XU patent/CN201258969Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182679A (en) * | 2011-05-23 | 2011-09-14 | 上海南华换热器制造有限公司 | Double screw pump for food processing machine |
| CN105134957A (en) * | 2015-10-09 | 2015-12-09 | 张家港市兰航机械有限公司 | Shaft seal with labyrinth seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |