CN201818539U - Double-end-face mechanical seal device for preventing axial movement of stationary ring - Google Patents
Double-end-face mechanical seal device for preventing axial movement of stationary ring Download PDFInfo
- Publication number
- CN201818539U CN201818539U CN2010205668774U CN201020566877U CN201818539U CN 201818539 U CN201818539 U CN 201818539U CN 2010205668774 U CN2010205668774 U CN 2010205668774U CN 201020566877 U CN201020566877 U CN 201020566877U CN 201818539 U CN201818539 U CN 201818539U
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- CN
- China
- Prior art keywords
- stationary ring
- mechanical seal
- collar
- double
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to a double-end-face mechanical seal device for preventing axial movement of a stationary ring and particularly relates to a sealing device of a double-end-face mechanical seal horizontal pump, which is applicable to chemical industry, metallurgy, coal, paper-making, pharmacy, environmental protection and other industries. On the basis of a conventional double-end-face mechanical seal assembled by a stationary ring seat, an O type seal ring, a medium end stationary ring, an atmospheric end stationary ring and a moving ring, the sealing device has the following improvements: a collar groove is processed in an inner cavity of a pump cover, a collar is assembled in the groove, and the medium end stationary ring is clamped simultaneously, thereby solving the problem of axial movement of the medium end stationary ring of the mechanical seal. The device has a simple structure and is convenient to use, the installation and the detachment of the collar are very convenient, the service life of the mechanical seal is greatly improved after the collar is added, the maintenance cost is greatly reduced, and the shutdown time of the device caused by failure of the mechanical seal can also be greatly reduced.
Description
Technical field
The utility model belongs to a kind of seal arrangement, particularly is applicable to the seal arrangement of industry double mechanical seal horizontal pumps such as chemical industry, metallurgy, coal, papermaking, pharmacy, environmental protection.
Background technique
Pump machine sealing chamber pressure often occurs and is lower than pump chamber pressure in the fed sheet of a media process, and because of having the gap between stationary seat and the axle sleeve, pressure medium directly acts on the stationary ring of media end mechanical seal.When carrying Korrosionsmedium, after the pump cover corrosion, stationary ring and pump cover place matching loose, under the pressure effect of pump chamber end, the media end stationary ring moves axially, and mechanical wear increases, and causes the mechanical seal premature failure.
Therefore the double mechanical seal structure is innovated to improve and be very important.
Summary of the invention
Technical problem to be solved in the utility model provides the anti-stationary ring axial motion device of a kind of double mechanical seal, it can strengthen double mechanical seal stability, reliability, in the working life of prolongation machine envelope, prevent that the pressure of pump back cavity from causing the pump mechanical sealing premature failure.
Realize that the technological scheme that the utility model above-mentioned purpose adopts is:
On the conventional double mechanical seal basis that is assembled into by stationary seat, O RunddichtringO, media end stationary ring, atmosphere end stationary ring and rotating ring, carry out following improvement, inner chamber at pump cover is processed with the collar groove, collar is packed into, and groove is interior also to block the media end stationary ring simultaneously, thereby solves the axially movable problem of mechanical seal media end stationary ring.
The beneficial effects of the utility model:
This apparatus structure is simple, and is easy to use, and the installing/dismounting of collar is all very convenient, increase collar after the machine envelope improve a lot working life, reduce maintenance expenses and device greatly and lost efficacy dead time because of the machine envelope.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done into explanation, but the utility model is not limited to shown in the accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Among the figure: stationary seat 1, O RunddichtringO 2, media end stationary ring 3, collar 4, pump cover 5, atmosphere end stationary ring 6, axle sleeve 7, atmosphere end 8, media end 9.
Embodiment
Referring to Fig. 1, stationary seat 1 pack into pump cover 5 by media end 9 one ends, media end stationary ring 3 is packed near stationary seat 1, the end that collar 4 is packed in the collar groove of processing on the pump cover 5 media end stationary ring 3 blocks, media end stationary ring 3 is by after collar 4 axially locating, collar 4 balances pump chamber media end 9 pass to the pressure of media end stationary ring 3, thereby reduce the continuation wearing and tearing of dynamic and static ring, improved the working life of machine envelope.
The utlity model has simple in structurely, the characteristics that processing and fabricating is easy increase behind the collar installation of machine envelope and compare with conventional double mechanical seal and only need at the machine sealing chamber body collar is installed after the media end stationary ring is installed, and all the other mounting means seal identical with conventional machine.
Claims (1)
1. a double mechanical seal is prevented stationary ring axial motion device, be assembled into by stationary seat, O RunddichtringO, media end stationary ring, atmosphere end stationary ring and rotating ring, it is characterized in that: the inner chamber at pump cover is processed with the collar groove, and collar is packed in the groove and blocked the media end stationary ring simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205668774U CN201818539U (en) | 2010-10-19 | 2010-10-19 | Double-end-face mechanical seal device for preventing axial movement of stationary ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205668774U CN201818539U (en) | 2010-10-19 | 2010-10-19 | Double-end-face mechanical seal device for preventing axial movement of stationary ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818539U true CN201818539U (en) | 2011-05-04 |
Family
ID=43916496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205668774U Expired - Lifetime CN201818539U (en) | 2010-10-19 | 2010-10-19 | Double-end-face mechanical seal device for preventing axial movement of stationary ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818539U (en) |
-
2010
- 2010-10-19 CN CN2010205668774U patent/CN201818539U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |