CN103307281B - A kind of double seals device - Google Patents
A kind of double seals device Download PDFInfo
- Publication number
- CN103307281B CN103307281B CN201310240824.1A CN201310240824A CN103307281B CN 103307281 B CN103307281 B CN 103307281B CN 201310240824 A CN201310240824 A CN 201310240824A CN 103307281 B CN103307281 B CN 103307281B
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- CN
- China
- Prior art keywords
- stationary ring
- spring
- rotating ring
- atmosphere
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000000498 cooling water Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Abstract
The invention discloses a kind of double seals device, comprise axle sleeve, sealing seat, media end rotating ring, media end stationary ring, atmosphere end stationary ring, atmosphere end rotating ring, spring seat, media end sealing configuration, rotary structure, wherein spring seat, atmosphere end stationary ring, atmosphere end rotating ring are in sealing seat inside.Described media end sealing configuration is state type balanced design, comprises axle sleeve, rotating ring, the first stationary ring, the first spring; Rotary mechanism comprises spring seat, the second spring, atmosphere end throw-out collar, the second stationary ring.Present invention utilizes the space of Seal cage, thus substantially reduce axial dimension, greatly reduce the fabricating cost of mechanical seal.
Description
Technical field
The present invention relates to a kind of mechanical seal device, the double seals device that particularly a kind of axial dimension is shorter.
Background technique
At present, mechanical seal great majority on power plant desulfurization pump are single mechanical end face seals, there is band cooling water and be not with cooling water two kinds of mechanical seals, mechanical seal with cooling water is generally adopt outside framework oil seal to seal cooling water, outside framework oil seal generally all only has the working life of 1-3 month working life, change mechanical seal frequently, have a strong impact on production.According to general double mechanical seal, because the diameter of axle of general desulfur pump is all larger, axial space size is shorter, and design general double mechanical seal and require there is longer axial dimension, so can cannot design, namely enable design also can increase the cost of mechanical seal greatly, and loses market.And this double mechanical seal and single mechanical end face seal axial length are the same length, much shorter than general double mechanical seal axial dimension, so this mechanical seal can meet the size requirement of pump, again reduce the cost of mechanical seal, this double mechanical is again unit loading type design, quick for installation, substantially increase again the working life of mechanical seal.In water-deficient area mechanical seal, because of water source difficulty, and the water consumption of mechanical seal is larger, so be generally all with anhydrous dry-type encapsulated, and have some industrial and mineral temperature higher, concentration of medium is also higher, anhydrously dry-type encapsulatedly need of production cannot be met, general working life is that 1-2 month mechanical seal has just damaged, and changes mechanical seal frequently, has a strong impact on production.The mechanical seal of band cooling water is used to solve this problem, again because of water source difficulty, and this mechanical seal can make a water tank to fill water, rotarily drives the flow of cooling water of mechanical seal inside by spring seat, produce certain pressure difference, make the water in water tank realize circulation.Thus ensure the normal use of mechanical seal.
Summary of the invention
The present invention is directed to above-mentioned Problems existing, a kind of double seals device is provided, comprise axle sleeve, sealing seat, media end rotating ring, media end stationary ring, atmosphere end stationary ring, atmosphere end rotating ring, spring seat, media end sealing configuration, rotary structure, wherein spring seat, atmosphere end stationary ring, atmosphere end rotating ring are in sealing seat inside.Described media end sealing configuration is state type equilibrium structure, comprises axle sleeve, rotating ring, the first stationary ring, the first spring.Wherein the first spring is static installation, and stationary ring is designed with balance diameter.Rotary structure comprises spring seat, the second spring, atmosphere end throw-out collar, the second stationary ring.
Its Intermediate shaft sleeve, media end rotating ring, media end stationary ring state type equilibrium structure, spring seat, rotary structure and atmosphere end rotating ring are fixed as an entirety.Sealing seat is positioned at the outside of described entirety.
The invention has the beneficial effects as follows: because atmosphere end Seal Design is inner at sealing seat, make use of the space of Seal cage, thus substantially reduce axial dimension, greatly reduce the fabricating cost of mechanical seal, machinery in the condition of normal use, generally can reach more than 1 year, again using water wisely, cost-saving again.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1. sealing seat, 2. axle sleeve, 3. media end stationary ring, 4. media end rotating ring, 5. spring seat, 6. atmosphere end rotating ring, 7. atmosphere end stationary ring, 8. rotary structure, 9. state type equilibrium structure, 10. atmosphere end throw-out collar.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
Figure 1 shows that schematic diagram of the present invention.Centre is axle, the present invention includes sealing seat 1, axle sleeve 2, media end stationary ring 3, media end rotating ring 4, spring seat 5, atmosphere end rotating ring 6, atmosphere end stationary ring 7, rotary structure 8, media end sealing configuration, atmosphere end throw-out collar 10.
Media end sealing configuration is state type balanced structure 9, primarily of axle sleeve 2, and rotating ring (not shown), the first stationary ring (not shown), the first spring composition.First spring is static installation, does not rotate, and can bear better rotating speed, and the first stationary ring is designed with balance diameter, can bear higher working pressure.The effect of this structure is sealing medium.Are media end throw-out collars between state type balanced structure 9 and media end stationary ring 3.
Rotary structure 8 is primarily of spring seat 5, and the second spring, atmosphere end throw-out collar 10, second stationary ring (not shown) forms, and structure is relatively simple, and the effect in this device is sealing cooling water.Second spring will rotate with axle.
Axle sleeve 2 is arranged on axle by fastening screw trip bolt.Axle sleeve 2, media end rotating ring 4, state type balanced structure 9, media end stationary ring 3, atmosphere end spring seat 5, rotary structure 8 and atmosphere end rotating ring 6 are fixed as a whole, and described sealing seat 1 is positioned at the outside of described entirety.Unique distinction of the present invention is described spring seat 5, atmosphere end stationary ring 7, atmosphere end rotating ring 6, and design at sealing seat 1 inner, thus substantially reduce axial dimension, its mechanism form is rotary structure.
Like this, rotated by axle sleeve 2, band flexible spring seat 5 rotates, and makes mechanical seal internal cooling water produce certain pressure, thus makes the water of water tank realize circulation, mechanical seal is cooled, heat radiation, ensures the normal use of mechanical seal.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: because atmosphere end Seal Design is inner at sealing seat 1, make use of the space of Seal cage, thus substantially reduce axial dimension, greatly reduce the fabricating cost of mechanical seal, machinery in the condition of normal use, generally can reach more than 1 year, again using water wisely, cost-saving again; This double mechanical seal using effect is good, well solves in water-deficient area mechanical seal, the problem that working life is short; Again because media end mechanical seal is state type equilibrium structure, spring not with medium contact, very high working pressure can be born again, so the mechanical seal of this structure is applied widely.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a double seals device, comprise axle sleeve (2), sealing seat (1), media end rotating ring (4), media end stationary ring (3), atmosphere end stationary ring (7), atmosphere end rotating ring (6), spring seat (5), it is characterized in that: also comprise media end sealing configuration, rotary structure (8), wherein spring seat (5), atmosphere end stationary ring (7), atmosphere end rotating ring (6) are in sealing seat (1) inside; Described media end sealing configuration is state type equilibrium structure (9), comprises axle sleeve (2), rotating ring, the first stationary ring, the first spring; First spring of described state type equilibrium structure (9) is static installation; Described first stationary ring is designed with balance diameter.
2. a kind of double seals device as claimed in claim 1, is characterized in that: rotary structure (8) comprises spring seat (5), the second spring, atmosphere end throw-out collar (10), the second stationary ring.
3. a kind of double seals device as claimed in claim 1, is characterized in that: axle sleeve (2), media end rotating ring (4), media end stationary ring (3), state type equilibrium structure (9), spring seat (5), rotary structure (8) and atmosphere end rotating ring (6) are fixed as an entirety.
4. a kind of double seals device as claimed in claim 3, is characterized in that: described sealing seat (1) is positioned at the outside of described entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240824.1A CN103307281B (en) | 2013-05-21 | 2013-06-18 | A kind of double seals device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320278521 | 2013-05-21 | ||
| CN2013202785214 | 2013-05-21 | ||
| CN201320278521.4 | 2013-05-21 | ||
| CN201310240824.1A CN103307281B (en) | 2013-05-21 | 2013-06-18 | A kind of double seals device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307281A CN103307281A (en) | 2013-09-18 |
| CN103307281B true CN103307281B (en) | 2016-02-17 |
Family
ID=49132826
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310240824.1A Expired - Fee Related CN103307281B (en) | 2013-05-21 | 2013-06-18 | A kind of double seals device |
| CN 201320348324 Expired - Fee Related CN203348544U (en) | 2013-05-21 | 2013-06-18 | Double-end-face sealing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320348324 Expired - Fee Related CN203348544U (en) | 2013-05-21 | 2013-06-18 | Double-end-face sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103307281B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307281B (en) * | 2013-05-21 | 2016-02-17 | 自贡市永宏密封件制造有限公司 | A kind of double seals device |
| CN105822766A (en) * | 2015-01-07 | 2016-08-03 | 自贡天锐科技有限公司 | Double-end face mechanical sealing device |
| JP6471006B2 (en) * | 2015-03-09 | 2019-02-13 | 日本ピラー工業株式会社 | Free ring type mechanical seal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331776Y (en) * | 1997-12-30 | 1999-08-04 | 戴秀美 | External double-shaft-seal structure of centrifugal pump |
| AU747433B2 (en) * | 1998-10-21 | 2002-05-16 | Aesseal Australia Pty Ltd | A seal |
| DE20214529U1 (en) * | 2002-09-19 | 2003-07-03 | Burgmann Dichtungswerke GmbH & Co. KG, 82515 Wolfratshausen | Double-acting sealing arrangements |
| JP5291083B2 (en) * | 2008-02-25 | 2013-09-18 | イーグル工業株式会社 | Shaft seal device |
| CN201288819Y (en) * | 2008-10-17 | 2009-08-12 | 四川日机密封件有限公司 | Bidirectional balance mechanical seal device |
| CN201526493U (en) * | 2009-09-22 | 2010-07-14 | 广西玉柴机器股份有限公司 | Water seal for water pump of diesel engine |
| CN202284645U (en) * | 2011-11-13 | 2012-06-27 | 浙江兰天机械密封件有限公司 | Mechanical seal device with simple wash water seal |
| CN202927040U (en) * | 2012-02-16 | 2013-05-08 | 舒恺君 | Basic shaft type popular type double end face packaging mechanical seal device |
| CN103307281B (en) * | 2013-05-21 | 2016-02-17 | 自贡市永宏密封件制造有限公司 | A kind of double seals device |
-
2013
- 2013-06-18 CN CN201310240824.1A patent/CN103307281B/en not_active Expired - Fee Related
- 2013-06-18 CN CN 201320348324 patent/CN203348544U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103307281A (en) | 2013-09-18 |
| CN203348544U (en) | 2013-12-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160217 Termination date: 20160618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |