CN102678932B - Double mechanical seal without accessory system - Google Patents
Double mechanical seal without accessory system Download PDFInfo
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- CN102678932B CN102678932B CN201210126087.8A CN201210126087A CN102678932B CN 102678932 B CN102678932 B CN 102678932B CN 201210126087 A CN201210126087 A CN 201210126087A CN 102678932 B CN102678932 B CN 102678932B
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- ring
- combination
- mechanical seal
- double mechanical
- shape circle
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Abstract
The invention discloses a double mechanical seal without an accessory system. The double mechanical seal comprises a transmission sleeve, a shaft sleeve, an end cover combination, a driving ring, a locating plate, a stationary ring combination and a rotating ring combination; an O-shaped ring I and an un-compensated ring are mounted on the end cover combination; a spring, a push ring, an O-shaped ring II, a compensated ring and a snap ring I are mounted on the transmission sleeve which is mounted on the shaft sleeve through a jackscrew I; the un-compensated ring is in contact with the compensated ring; the stationary ring combination is mounted on the end cover combination; an O-shaped ring VII is mounted between the stationary ring combination and the end cover combination; the rotating ring combination is mounted on the shaft sleeve; and an O-shaped ring VI is mounted between the rotating ring combination and the shaft sleeve. The invention solves the problems that the requirement on connection of an accessory system cannot be met while the requirement on the leakage amount is strict; and the axial size of the double mechanical seal is smaller than that of a common double mechanical seal, the structure is simple, and the implementation is convenient.
Description
Technical field
The present invention relates to double mechanical seal field, relate in particular to a kind of not with the double mechanical seal of auxiliary system.
Background technique
Double mechanical seal has obvious advantage than single mechanical end face seal aspect control media leakage rate.But double mechanical seal need to configure auxiliary system, so that atmospheric side mechanical seal has sealing liquid lubricated, avoid dry friction.But many times the on-the-spot condition that does not possess the auxiliary system of connecing, stricter to mechanical sealing leakage amount requirement again, thereby caused mechanical seal to be difficult for realizing, and affected the effect of mechanical seal.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of not with the double mechanical seal of auxiliary system.
The technological scheme that the present invention adopted is for achieving the above object: a kind of not with the double mechanical seal of auxiliary system, comprise drive sleeve, axle sleeve, end cap combination, driving ring, location piece, stationary ring combination and rotating ring combination, in described end cap combination, O shape circle one is installed, uncompensated ring, in described drive sleeve, spring is installed, throw-out collar, O shape circle two, compensated loop, snap ring one, described drive sleeve is arranged on axle sleeve by jackscrew one, described uncompensated ring contacts with compensated loop, described location piece is arranged on driving ring, and be arranged in end cap combination by hexagon head bolt, described driving ring is arranged on axle sleeve by jackscrew two, described stationary ring combination is arranged in end cap combination, between stationary ring combination and end cap combination, O shape circle seven is installed, described rotating ring combination is arranged on axle sleeve, O shape circle six is installed between rotating ring combination and axle sleeve.
Described rotating ring combination is arranged on axle sleeve by snap ring two.
Between described stationary ring combination and rotating ring combination, be provided with labyrinth seal, O shape circle five.
The invention solves the on-the-spot condition that does not possess the auxiliary system of connecing, but leakage rate is required again to stricter problem, and this double mechanical seal is less than the axial dimension of general double mechanical seal, simple in structure, it is convenient to realize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1, O shape circle 1, uncompensated ring 3, compensated loop 4, snap ring 1, O shape circle 26, throw-out collar 7, spring 8, drive sleeve 9, jackscrew 1, axle sleeve 11, O shape circle 3 12, end cap combination 13, O shape circle 4 14, stationary ring combination 15, rotating ring combination 16, snap ring 2 17, driving ring 18, jackscrew 2 19, location piece 20, hexagon head bolt 21, O shape circle 5 22, O shape circle 6 23, O shape circle seven.
Embodiment
As shown in Figure 1, a kind of not with the double mechanical seal of auxiliary system, comprise drive sleeve 8, axle sleeve 10, end cap combination 12, driving ring 17, location piece 19, stationary ring combination 14 and rotating ring combination 15, in described end cap combination 12, O shape circle 1 is installed, uncompensated ring 2, in described drive sleeve 8, spring 7 is installed, throw-out collar 6, O shape circle 25, compensated loop 3, snap ring 1, described drive sleeve 8 is arranged on axle sleeve 10 by jackscrew 1, described uncompensated ring 2 contacts with compensated loop 3, described location piece 19 is arranged on driving ring 17, and be arranged in end cap combination 12 by hexagon head bolt 20, described driving ring 17 is arranged on axle sleeve 10 by jackscrew 2 18, described stationary ring combination 14 is arranged in end cap combination 12, between stationary ring combination 14 and end cap combination 12, O shape circle 7 23 is installed, described rotating ring combination 15 is arranged on axle sleeve 10 by snap ring 2 16, O shape circle 6 22 is installed between rotating ring combination 15 and axle sleeve 10, between described stationary ring combination 14 and rotating ring combination 15, be provided with labyrinth seal, O shape circle 5 21, described end cap combination 12 is arranged on equipment by stud bolt, and O shape circle 4 13 is installed between end cap combination 12 and equipment, O shape circle 3 11 is installed between described axle sleeve 10 and axle.
During equipment operation, side medium primary seal seals, and the sealing surface of the secondary sealing of atmospheric side does not contact, and rotating ring combination 15 is along with axle rotates together, and stationary ring combination 14 is not rotated; The Seal cage internal pressure of primary seal is pressure medium, and higher than atmospheric pressure, the Seal cage pressure of secondary sealing is atmospheric pressure.If primary seal is damaged, pressure medium enters auxiliary seal cavity, between stationary ring combination 14 and rotating ring combination 15, there is labyrinth seal, pressure can not reduced rapidly, under the effect of pressure medium, resistance and rotating ring combination 15 that stationary ring combination 14 overcomes O shape circle 7 23 form new friction pair, play seal action.
Claims (3)
1. one kind with the double mechanical seal of auxiliary system, comprise drive sleeve (8), axle sleeve (10), end cap combination (12), driving ring (17) and location piece (19), O shape circle one (1) is installed in described end cap combination (12), uncompensated ring (2), spring (7) is installed in described drive sleeve (8), throw-out collar (6), O shape circle two (5), compensated loop (3), snap ring one (4), described drive sleeve (8) is arranged on axle sleeve (10) by jackscrew one (9), described uncompensated ring (2) contacts with compensated loop (3), described location piece (19) is arranged on driving ring (17), and be arranged in end cap combination (12) by hexagon head bolt (20), described driving ring (17) is arranged on axle sleeve (10) by jackscrew two (18), it is characterized in that: comprise stationary ring combination (14) and rotating ring combination (15), described stationary ring combination (14) is arranged in end cap combination (12), O shape circle seven (23) is installed between stationary ring combination (14) and end cap combination (12), described rotating ring combination (15) is arranged on axle sleeve (10), O shape circle six (22) is installed between rotating ring combination (15) and axle sleeve (10).
2. as claimed in claim 1 not with the double mechanical seal of auxiliary system, it is characterized in that: described rotating ring combination (15) is arranged on axle sleeve (10) by snap ring two (16).
3. as claimed in claim 1 not with the double mechanical seal of auxiliary system, it is characterized in that: between described stationary ring combination (14) and rotating ring combination (15), be provided with labyrinth seal, O shape circle five (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126087.8A CN102678932B (en) | 2012-04-27 | 2012-04-27 | Double mechanical seal without accessory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126087.8A CN102678932B (en) | 2012-04-27 | 2012-04-27 | Double mechanical seal without accessory system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678932A CN102678932A (en) | 2012-09-19 |
| CN102678932B true CN102678932B (en) | 2014-09-24 |
Family
ID=46811288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210126087.8A Active CN102678932B (en) | 2012-04-27 | 2012-04-27 | Double mechanical seal without accessory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102678932B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276194A (en) * | 2015-10-19 | 2016-01-27 | 季裕成 | Mechanical sealing device for multi-stage pump |
| CN107314115A (en) * | 2017-08-30 | 2017-11-03 | 沃德传动（天津）股份有限公司 | A kind of oil sealing nitrogenizes nested structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58106267A (en) * | 1981-12-18 | 1983-06-24 | Tanken Seikou Kk | Mechanical seal |
| CN2403928Y (en) * | 1999-01-28 | 2000-11-01 | 华北石油管理局呼和浩特炼油厂 | Liquid hydrocarbon pump two end mechanical sealing device |
| CN101526135A (en) * | 2009-04-17 | 2009-09-09 | 丹东克隆集团有限责任公司 | Labyrinth combined type mechanical sealing device |
| EP2246597A1 (en) * | 2008-02-25 | 2010-11-03 | Eagle Industry Co., Ltd. | Shaft sealing device |
| CN101970917A (en) * | 2008-01-11 | 2011-02-09 | 约翰起重机英国有限公司 | Seals |
| WO2011036917A1 (en) * | 2009-09-24 | 2011-03-31 | イーグル工業株式会社 | Mechanical seal |
| CN102116320A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Spent fuel pool cooling pump for nuclear power station |
| CN202612647U (en) * | 2012-04-27 | 2012-12-19 | 大连华阳光大密封有限公司 | Double-face mechanical seal without auxiliary system |
-
2012
- 2012-04-27 CN CN201210126087.8A patent/CN102678932B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58106267A (en) * | 1981-12-18 | 1983-06-24 | Tanken Seikou Kk | Mechanical seal |
| CN2403928Y (en) * | 1999-01-28 | 2000-11-01 | 华北石油管理局呼和浩特炼油厂 | Liquid hydrocarbon pump two end mechanical sealing device |
| CN101970917A (en) * | 2008-01-11 | 2011-02-09 | 约翰起重机英国有限公司 | Seals |
| EP2246597A1 (en) * | 2008-02-25 | 2010-11-03 | Eagle Industry Co., Ltd. | Shaft sealing device |
| CN101526135A (en) * | 2009-04-17 | 2009-09-09 | 丹东克隆集团有限责任公司 | Labyrinth combined type mechanical sealing device |
| WO2011036917A1 (en) * | 2009-09-24 | 2011-03-31 | イーグル工業株式会社 | Mechanical seal |
| CN102116320A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Spent fuel pool cooling pump for nuclear power station |
| CN202612647U (en) * | 2012-04-27 | 2012-12-19 | 大连华阳光大密封有限公司 | Double-face mechanical seal without auxiliary system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102678932A (en) | 2012-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant after: DALIAN HUAYANG SEALS CO., LTD. Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning Applicant before: Dalian Huayang Seals Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN HUAYANG GUANGDA SEALING CO., LTD. TO: DALIAN HUAYANG SEALS CO., LTD. |
|
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Baojun Inventor after: Wang Lianbin Inventor before: Jin Lihong Inventor before: Guo Chao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JIN LIHONG GUO CHAO TO: ZHANG BAOJUN WANG LIANBIN |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |