CN204985047U - High temperature is two -stage sealing device for oil pump - Google Patents
High temperature is two -stage sealing device for oil pump Download PDFInfo
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- CN204985047U CN204985047U CN201520439303.3U CN201520439303U CN204985047U CN 204985047 U CN204985047 U CN 204985047U CN 201520439303 U CN201520439303 U CN 201520439303U CN 204985047 U CN204985047 U CN 204985047U
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Abstract
The utility model discloses a high temperature is two -stage sealing device for oil pump, including one -level sealing device, second grade sealing device, axle sleeve, outer end cover, inner end cap, the outer end is covered and is equipped with the steam access & exit, one -level sealing device one end through first fix with screw on the axle sleeve, it is the orientation in order to keep away from first screw in the axial, includes transmission ring, rotating seat, first rotating ring, first quiet ring, first stationary seat in proper order, first bellows, first transition ring, corrugated header, the corrugated header is covered in the outer end through the second fix with screw, second grade sealing device lies in one -level sealing device's left side, and it includes rand, ripples spring abutment, ripples spring, clamp ring, second rotating ring, the quiet ring of second, second stationary seat, second bellows, second transition ring with the orientation of keeping away from the second screw in proper order in the axial. The utility model discloses a series connection form of bellows is sealed, and the leakproofness is good, can effectively reduce revealing of medium, and the security is high, reduces the operation damage, increase of service life.
Description
Technical field
The utility model relates to seal arrangement, is specifically related to a kind of high temperature oil pump two-stage seal arrangement.
Background technique
In current petrochemical industry, the vane pump of 80% ~ 90% have employed mechanical seal.Mechanical seal is seal arrangement important in fluid machinery and dynamic power machine, and it even all has a great impact the Security of whole production process entire machine equipment, package unit.Conventional sorting methods is layout and the textural classification of foundation sealing, is divided into mechanical single seal, double seals and two-stage series connection sealing.But with regard to current current situation, be the problem that all uncontrollable amount of leakage of double seals or mechanical single seal is large.And it is particularly serious for revealing in the high-revolving situation of large-diameter.The Chinese patent being 103216466A as notification number has announced a kind of pump serial mechanical seal device, and it has surprisingly reveals the problems such as breaking out of fire rate is high because poor sealing performance, working life short, interior fluid mediums easily occurs elevated temperature deformation.
Model utility content
The purpose of this utility model be to provide a kind of good airproof performance, antijamming capability by force, the high temperature oil pump two-stage seal arrangement of not easy damaged.
For realizing above-mentioned technical purpose, the utility model adopts following technological scheme to be achieved.
A kind of high temperature oil pump two-stage seal arrangement, comprises primary seal device, two stage sealing device, axle sleeve, outer end cap, inner end cap; Described two stage sealing device, described primary seal device, described outer end cap surrounds Seal cage, described outer end cap is provided with steam gateway, described primary seal device one end is fixed on axle sleeve by the first screw, and it comprises transmission ring, rotating seat, the first rotating ring, the first stationary ring, the first stationary seat successively in the axial direction along the direction away from the first screw, first bellows, First Transition ring, corrugated header, described corrugated header is fixed on outer end cap by the second screw; Described two stage sealing device is presented axially in the left side of described primary seal device, it is in the axial direction along the direction away from the second screw, comprises collar successively, the ripple spring abutment be fixed on axle sleeve, ripple spring, hold-down ring, the second rotating ring, the second stationary ring, the second stationary seat, the second bellows, the second transition ring.
As preferably, between described transmission ring and described rotating seat, be provided with sealing gasket, between described rotating seat and rotating ring, be provided with sealing gasket, between described corrugated header and described outer end cap, be provided with sealing gasket.
As preferably, one end of described primary seal device is fixed with flow guide sleeve by the second screw.
As preferably, between described second rotating ring and axle sleeve, be provided with steel ball.
The beneficial effects of the utility model are: the utility model adopts the cascade sealing of bellows, good airproof performance, antijamming capability are strong, total close fit, tolerance is strong, effectively can reduce the leakage of medium, Safety performance is high, effectively avoid flowing medium surprisingly to reveal and the situations such as breaking out of fire occur, operation stability is high, is not easy distortion, reduce and run damage, increase the service life.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: rotating shaft 1; Axle sleeve 2; Outer end cap 3; Inner end cap 4; First screw 5; Transmission ring 6; Rotating seat 7; First rotating ring 8; First stationary ring 9; First stationary seat 10; First bellows 11; First Transition ring 12; Corrugated header 13; Second screw 14; Sealing gasket 15; Flow guide sleeve 16; Collar 17; Ripple spring abutment 18; Ripple spring 19; Hold-down ring 20; Second rotating ring 21, second stationary ring 22, second stationary seat 23, second bellows 24, second transition ring 25; Steel ball 26; Steam gateway 27.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of high temperature oil pump two-stage seal arrangement described in the utility model, comprise primary seal device, two stage sealing device, rotating shaft 1, axle sleeve 2, outer end cap 3, inner end cap 4, described axle sleeve 2 is located in rotating shaft 1, and described primary seal device and two stage sealing device are arranged in the chamber that axle sleeve 2, inner end cap 4 and outer end cap 3 three are formed.
Described primary seal device one end is fixed on axle sleeve 2 by the first screw 5, it is in the axial direction along the direction away from the first screw 5, comprise transmission ring 6, rotating seat 7, first rotating ring 8, first stationary ring 9, first stationary seat 10 successively, first bellows 11, First Transition ring 12, corrugated header 13, described corrugated header 13 is fixed on outer end cap 3 by the second screw 14.Wherein, between described transmission ring 6 and described rotating seat 7, be provided with sealing gasket 15, between described rotating seat 7 and rotating ring 8, be provided with sealing gasket 15, between described corrugated header 13 and described outer end cap 3, be provided with sealing gasket 15.One end of described primary seal device is fixed with flow guide sleeve 16 by the second screw 14.
Described two stage sealing device is presented axially in the left side of described primary seal device, it along the direction away from the second screw 14, comprises collar 17 in the axial direction successively, the ripple spring abutment 18 be fixed on axle sleeve 2, ripple spring 19, hold-down ring 20, second rotating ring 21, second stationary ring 22, second stationary seat 23, second bellows 24, second transition ring 25.Be provided with sealing gasket 15 between described hold-down ring 20 and the second rotating ring 21, between described second rotating ring 21 and axle sleeve 2, be provided with steel ball 26.
Described primary seal device, described two stage sealing device, described outer end cap 3 surrounds Seal cage.Described outer end cap 3 is provided with steam gateway 27, low pressure steam is entered between primary seal device and two stage sealing device and is taken away by the frictional heat of flow guide sleeve 16 by primary seal device, the outer bands arriving two stage sealing device again walks heat, completes whole cyclic process.Its advantage is, once the machine envelope of media end is revealed, two stage sealing device is put also in normal operation, and MEDIA FLOW is to trench, and the temperature of trench is low potential safety hazard can not occur.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (4)
1. a high temperature oil pump two-stage seal arrangement, is characterized in that: comprise primary seal device, two stage sealing device, axle sleeve (2), outer end cap (3), inner end cap (4), described two stage sealing device, described primary seal device and described outer end cap (3) surround Seal cage, described outer end cap (3) is provided with steam gateway (27), described primary seal device one end is fixed on axle sleeve (2) by the first screw (5), it is in the axial direction along the direction away from the first screw (5), comprise transmission ring (6) successively, rotating seat (7), first rotating ring (8), first stationary ring (9), first stationary seat (10), first bellows (11), First Transition ring (12), corrugated header (13), described corrugated header (13) is fixed on outer end cap (3) by the second screw (14), described two stage sealing device is presented axially in the left side of described primary seal device, it is in the axial direction along the direction away from the second screw (14), comprises collar (17) successively, the ripple spring abutment (18) be fixed on axle sleeve (2), ripple spring (19), hold-down ring (20), the second rotating ring (21), the second stationary ring (22), the second stationary seat (23), the second bellows (24), the second transition ring (25).
2. high temperature oil pump two-stage seal arrangement according to claim 1, it is characterized in that: between described transmission ring (6) and described rotating seat (7), be provided with sealing gasket (15), be provided with sealing gasket (15) between described rotating seat (7) and rotating ring, between described corrugated header (13) and described outer end cap (3), be provided with sealing gasket (15).
3. high temperature oil pump two-stage seal arrangement according to claim 1, is characterized in that: one end of described primary seal device is fixed with flow guide sleeve (16) by the second screw (14).
4. high temperature oil pump two-stage seal arrangement according to claim 1, is characterized in that: be provided with steel ball (26) between described second rotating ring (21) and axle sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439303.3U CN204985047U (en) | 2015-06-24 | 2015-06-24 | High temperature is two -stage sealing device for oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439303.3U CN204985047U (en) | 2015-06-24 | 2015-06-24 | High temperature is two -stage sealing device for oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985047U true CN204985047U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520439303.3U Active CN204985047U (en) | 2015-06-24 | 2015-06-24 | High temperature is two -stage sealing device for oil pump |
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| Country | Link |
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| CN (1) | CN204985047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240311A (en) * | 2019-07-18 | 2021-01-19 | 河北兆宏机械泵业有限公司 | Shaft seal device |
-
2015
- 2015-06-24 CN CN201520439303.3U patent/CN204985047U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240311A (en) * | 2019-07-18 | 2021-01-19 | 河北兆宏机械泵业有限公司 | Shaft seal device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |