CN102678932A - Double mechanical seal without accessory system - Google Patents
Double mechanical seal without accessory system Download PDFInfo
- Publication number
- CN102678932A CN102678932A CN2012101260878A CN201210126087A CN102678932A CN 102678932 A CN102678932 A CN 102678932A CN 2012101260878 A CN2012101260878 A CN 2012101260878A CN 201210126087 A CN201210126087 A CN 201210126087A CN 102678932 A CN102678932 A CN 102678932A
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- Prior art keywords
- ring
- combination
- mechanical seal
- double mechanical
- axle sleeve
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- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
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 the 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 remarkable advantages than single mechanical end face seal aspect the control media leakage rate.But double mechanical seal need dispose auxiliary system, so that atmospheric side mechanical seal has sealing liquid lubricated, avoids dry friction.But the many times on-the-spot condition that does not possess the auxiliary system of connecing requires relatively strictness to mechanical sealing leakage amount again, thereby has caused mechanical seal to be difficult for realizing, has influenced the effect of mechanical seal.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of not with the double mechanical seal of auxiliary system.
The present invention for realizing the technological scheme that above-mentioned purpose adopted is: 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 the described end cap combination O shape circle one, uncompensated ring are installed, spring, throw-out collar, O shape circle two, compensated loop, snap ring one are installed on the described drive sleeve, described drive sleeve is installed on the axle sleeve through jackscrew one; Described uncompensated ring contacts with compensated loop; Described location piece is installed in driving ring, and is installed in the end cap combination through hexagon head bolt, and described driving ring is installed on the axle sleeve through jackscrew two; Described stationary ring stack mounting is in the end cap combination; Between stationary ring combination and the end cap combination O shape circle seven is installed, described rotating ring stack mounting is equipped with O shape circle six between rotating ring combination and the axle sleeve on axle sleeve.
Described rotating ring combination is installed on the axle sleeve through snap ring two.
Be provided with labyrinth seal, O shape circle five between described stationary ring combination and the rotating ring combination.
The invention solves the on-the-spot condition that does not possess the auxiliary system of connecing, but leakage rate is required relatively stricter again problem, and this double mechanical seal is littler than the axial dimension of general double mechanical seal, simple in structure, it is convenient to realize.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein: 1, O shape encloses 1, uncompensated ring 3, compensated loop 4, snap ring 1, O shape enclose 26, throw-out collar 7, spring 8, drive sleeve 9, jackscrew 1, axle sleeve 11, O shape enclose 3 12, end cap combination 13, O shape enclose 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 enclose 5 22, O shape encloses 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, be equipped with in the described end cap combination 12 that O shape encloses 1, uncompensated ring 2; Be equipped with on the described drive sleeve 8 that spring 7, throw-out collar 6, O shape enclose 25, compensated loop 3, snap ring 1; Described drive sleeve 8 is installed on the axle sleeve 10 through jackscrew 1, and described uncompensated ring 2 contacts with compensated loop 3, and described location piece 19 is installed in driving ring 17; And be installed in the end cap combination 12 through hexagon head bolt 20; Described driving ring 17 is installed on the axle sleeve 10 through jackscrew 2 18, and described stationary ring combination 14 is installed in the end cap combination 12, between stationary ring combination 14 and the end cap combination 12 O shape is installed and encloses 7 23; Described rotating ring combination 15 is installed on the axle sleeve 10 through snap ring 2 16, between rotating ring combination 15 and the axle sleeve 10 O shape is installed and encloses 6 22; Described stationary ring combination 14 and rotating ring are provided with labyrinth seal between making up 15, O shape encloses 5 21; Described end cap combination 12 is installed on the equipment through stud bolt, between end cap combination 12 and the equipment O shape is installed and encloses 4 13; Between described axle sleeve 10 and the axle O shape is installed and encloses 3 11.
During equipment operation, the 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 a pressure medium, is higher than atmospheric pressure, and the Seal cage pressure of secondary sealing is atmospheric pressure.If primary seal is damaged; Then pressure medium gets into auxiliary seal cavity; Between stationary ring combination 14 and rotating ring combination 15, labyrinth seal is arranged, pressure can not reduced, rapidly under the effect of pressure medium; Stationary ring combination 14 overcomes O shape and encloses 7 23 resistance and the new friction pair of rotating ring combination 15 compositions, plays 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), uncompensated ring (2) are installed in the described end cap combination (12); Spring (7), throw-out collar (6), O shape circle two (5), compensated loop (3), snap ring one (4) are installed on the described drive sleeve (8); Described drive sleeve (8) is installed on the axle sleeve (10) through jackscrew one (9); Described uncompensated ring (2) contacts with compensated loop (3), and described location piece (19) is installed in driving ring (17), and is installed in the end cap combination (12) through hexagon head bolt (20); Described driving ring (17) is installed on the axle sleeve (10) through jackscrew two (18); It is characterized in that: comprise stationary ring combination (14) and rotating ring combination (15), described stationary ring combination (14) is installed in the end cap combination (12), and O shape circle seven (23) is installed between stationary ring combination (14) and the end cap combination (12); Described rotating ring combination (15) is installed on the axle sleeve (10), and O shape circle six (22) is installed between rotating ring combination (15) and the 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 installed on the axle sleeve (10) through snap ring two (16).
3. as claimed in claim 1 not with the double mechanical seal of auxiliary system, it is characterized in that: be provided with labyrinth seal, O shape circle five (21) between described stationary ring combination (14) and the rotating ring combination (15).
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 true CN102678932A (en) | 2012-09-19 |
| CN102678932B 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) |
Cited By (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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102678932B (en) | 2014-09-24 |
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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 of 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 of 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 |