CN102537369B - Mechanical seal device for stirrer with vertically reciprocating stirring shaft - Google Patents
Mechanical seal device for stirrer with vertically reciprocating stirring shaft Download PDFInfo
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- CN102537369B CN102537369B CN201210005043.XA CN201210005043A CN102537369B CN 102537369 B CN102537369 B CN 102537369B CN 201210005043 A CN201210005043 A CN 201210005043A CN 102537369 B CN102537369 B CN 102537369B
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- seal
- axle sleeve
- stirrer
- stationary ring
- stirring shaft
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Abstract
The invention relates to a mechanical seal device for a stirrer with a vertically reciprocating stirring shaft. A radial seal component, a bearing component and a reactor opening flange are coaxially arranged outside a shaft sleeve, a long key groove is axially arranged along the inner wall of the shaft sleeve, a sliding key is arranged in the long key groove, and an axial seal component is arranged at the lower end of the shaft sleeve. The sliding key is fixed onto a rotating shaft and slides in the long key groove on the shaft sleeve, the rotating shaft is capable of rotating and vertically reciprocating in a mechanical seal, and further the sealing performance of the rotating shaft during action is ensured.
Description
Technical field
The present invention relates to a kind of mechanical seal device, especially a kind of mechanical seal device of the stirrer that can pump for stirring shaft.
Background technique
Existing mechanical seal device generally can only realize sealing to the stirring shaft rotated around fixing rotation axis horizontal, sealing can not be realized to the stirring shaft pumped, and the stirring shaft of some machines not only needs Stirring also to need up and down reciprocatingly to stir, material stirring in stirrer can better be made even, especially the dry three-in-one dryer of a kind of filtration washing, require the sanitation-grade mechanical seal reaching pharmaceutical industry, one is needed to be arranged on retort mouth, multi-functional, the unit loading type stirrer seal that can pump, sealing can be ensured when rotating and pumping to realize stirring shaft.
Summary of the invention
For above-mentioned reasons, the object of the present invention is to provide a kind of mechanical seal device that also can realize the stirrer sealed when stirring shaft rotates and pumps.
For achieving the above object, the present invention adopts a kind of stirring shaft to pump the mechanical seal device of stirrer, comprise axle sleeve, radial seal assembly, bearing unit and still mouth flange, radial seal assembly, bearing unit and still mouth flange coaxial are arranged on axle sleeve outer wall, sleeve lining is provided with long keyway vertically, be provided with slide key in long keyway, the lower end of axle sleeve is provided with axial seal assembly, forms axial seal when stirrer moves up and down to it.
The invention has the beneficial effects as follows that slide key is for being fixed on rotating shaft, slide in the long keyway of slide key on axle sleeve, realize rotating shaft pumping in mechanical seal, both achieved the rotation of rotating shaft in mechanical seal and pumped, having in turn ensure that the sealability of rotating shaft in course of action.
The present invention is set to each sliding bearing coaxially arranging a certralizing ability of upper and lower end of described sleeve lining further, and the inwall of sliding bearing is axially provided with air vent.Sliding bearing plays certralizing ability when stirring shaft moves up and down, air vent can avoid pump be vented in Intermediate shaft sleeve not smooth.
The upper end that the present invention is set to described axle sleeve is further coaxially arranged with gland, and the side of gland forms radial through leak detection mouth.Leak detection mouth is for detecting the sealing condition of axle sleeve.
The present invention is set to described mechanical seal device further and also comprises dust-proof cover, the annulus cover of dust-proof cover to be cross section be L-type, dust-proof cover comprises the joint of lower end and the dustproof part of upper end, joint is fixed on still mouth flange, dustproof part upwards extends along axle sleeve outer side wall, the dustproof part of the corresponding dust-proof cover of axle sleeve forms a dustproof groove downwards, and dustproof part extends up in dustproof groove.The rotating ring scrap that continuous spin friction produces on stationary ring can be accommodated in wherein by dust-proof cover, prevents scrap from dropping in media cavity.
The present invention is set to described axial seal assembly further and comprises bellows and corrugated header, and corrugated header is connected with axle sleeve co-axial seal, and sylphon seal is connected to corrugated header lower end.Bellows also can guarantee the sealability of mechanical seal when rotating shaft moves up and down.
The present invention is set to described black box further and comprises rotating ring, upper stationary ring, lower stationary ring, seal chamber, stationary seat, rotating ring is coaxially fixed on axle sleeve, upper stationary ring is arranged on stationary seat, lower stationary ring is arranged on still mouth flange, rotating ring realizes being sealed and matched between upper stationary ring and lower stationary ring, seal chamber is fixed between stationary seat and still mouth flange, the outer side wall of seal chamber is respectively arranged with nitrogen inlet and nitrogen outlet, nitrogen inlet arranges the downside of seal chamber, nitrogen outlet and nitrogen inlet are oppositely arranged on the upside of seal chamber, nitrogen inlet, seal chamber, nitrogen outlet forms an air cooling circulation together.Mechanical seal adopts nitrogen cooling to axle sleeve, and nitrogen enters seal chamber from nitrogen inlet, the heat absorption on axle sleeve is distributed from nitrogen outlet in seal chamber.
Accompanying drawing explanation
Fig. 1 is the sectional view of the specific embodiment of the invention.
Fig. 2 is the plan view of the specific embodiment of the invention.
Fig. 3 is the A portion enlarged view of Fig. 1.
Fig. 4 is the B portion enlarged view of Fig. 1.
Embodiment
As Figure 1-4, specific embodiments of the invention are that a kind of stirring shaft pumps the mechanical seal device of stirrer, comprise axle sleeve 1, gland 2, rotating ring 3, upper stationary ring 4, lower stationary ring 5, stationary seat 6, bearing 7, bearing support 8, seal chamber 9, still mouth flange 10, corrugated header 11, bellows 12, dust-proof cover 13, axle sleeve 1 inwall thickeied axially is provided with long keyway 101, the slide key 102 in interior slippage is provided with in long keyway 101, slide key 102 is for being connected with rotating shaft, axle sleeve 1 inwall upper, the each sliding bearing 14 that a certralizing ability is coaxially set in lower end, sliding bearing 14 is metal ring, the inwall of sliding bearing 14 is provided with axial air vent 141, the upper end of axle sleeve 1 is coaxially arranged with gland 2, the position of the corresponding air vent of gland 2 141 forms radial through leak detection mouth 201, rotating ring 3 is fixedly installed on outside axle sleeve 1, upper stationary ring 4 is arranged on stationary seat 6, lower stationary ring 5 is arranged on still mouth flange 10, rotating ring 3 is arranged between stationary ring 4 and lower stationary ring 5, seal chamber 9 is arranged between stationary seat 6 and still mouth flange 10, the outer side wall of seal chamber 9 is respectively arranged with nitrogen inlet 901 and nitrogen outlet 902, nitrogen inlet 901 arranges the downside of seal chamber 9, nitrogen outlet 902 and nitrogen inlet 901 are oppositely arranged on the upside of seal chamber 9, bearing 7 is arranged on the axle sleeve outer 1 on the upside of stationary ring 4, bearing 7 outer wall is arranging in bearing support 8, the lower end of axle sleeve 1 is provided with corrugated header 11, corrugated header 11 is connected with bellows 12, dust-proof cover 13 is coaxially arranged with between still mouth flange 10 and axle sleeve 1, dust-proof cover 13 for cross section be the annulus cover of L-type, dust-proof cover 13 comprises the joint 131 of lower end and the dustproof part 132 of upper end, joint 131 is fixed on still mouth flange 10, dustproof part 132 upwards extends along axle sleeve 1 outer side wall, the dustproof part 132 of the corresponding dust-proof cover 13 of axle sleeve 1 forms a dustproof groove 103 downwards, dustproof part 132 extends up in dustproof groove 103.
The present invention arranges long keyway 101 on the inwall of axle sleeve 1, need thicker than the axle sleeve of existing product through measuring and calculating axle sleeve 1 thickness of the present invention, by the long keyway 101 arranged at axle sleeve 1 inwall thickeied, rotating shaft arranges the slide key 102 with long keyway 101 adaptation, thus rotating shaft is coordinated by the slippage of slide key 102 with long keyway 101, realize rotating shaft pumping in mechanical seal.
Claims (6)
1. a stirring shaft pumps the mechanical seal device of stirrer, comprise axle sleeve, radial seal assembly, bearing unit and still mouth flange, radial seal assembly, bearing unit and still mouth flange coaxial are arranged on axle sleeve outer wall, it is characterized in that: described sleeve lining is provided with long keyway vertically, slide key is provided with in long keyway, the lower end of axle sleeve is provided with axial seal assembly, when stirrer moves up and down, axial seal is formed to it, sleeve lining upper, the each sliding bearing that a certralizing ability is coaxially set in lower end, the inwall of sliding bearing is axially provided with air vent, the upper end of described axle sleeve is coaxially arranged with gland, the corresponding air vent of gland forms radial through leak detection mouth.
2. stirring shaft according to claim 1 pumps the mechanical seal device of stirrer, it is characterized in that: described mechanical seal device also comprises dust-proof cover, the annulus cover of dust-proof cover to be cross section be L-type, dust-proof cover comprises the joint of lower end and the dustproof part of upper end, joint is fixed on still mouth flange, dustproof part upwards extends along axle sleeve outer side wall, and the dustproof part of the corresponding dust-proof cover of axle sleeve forms a dustproof groove downwards, and dustproof part extends up in dustproof groove.
3. stirring shaft according to claim 1 pumps the mechanical seal device of stirrer, it is characterized in that: described axial seal assembly comprises bellows and corrugated header, corrugated header is connected with axle sleeve co-axial seal, and sylphon seal is connected to corrugated header lower end.
4. stirring shaft according to claim 2 pumps the mechanical seal device of stirrer, it is characterized in that: described axial seal assembly comprises bellows and corrugated header, corrugated header is connected with axle sleeve co-axial seal, and sylphon seal is connected to corrugated header lower end.
5. stirring shaft according to claim 1 pumps the mechanical seal device of stirrer, it is characterized in that: described radial seal assembly comprises rotating ring, upper stationary ring, lower stationary ring, seal chamber, stationary seat, rotating ring is coaxially fixed on axle sleeve, upper stationary ring is arranged on stationary seat, lower stationary ring is arranged on still mouth flange, rotating ring realizes being sealed and matched between upper stationary ring and lower stationary ring, seal chamber is fixed between stationary seat and still mouth flange, the outer side wall of seal chamber is respectively arranged with nitrogen inlet and nitrogen outlet, nitrogen inlet arranges the downside of seal chamber, nitrogen outlet and nitrogen inlet are oppositely arranged on the upside of seal chamber, nitrogen inlet, seal chamber, nitrogen outlet forms an air cooling circulation together.
6. stirring shaft according to claim 2 pumps the mechanical seal device of stirrer, it is characterized in that: described radial seal assembly comprises rotating ring, upper stationary ring, lower stationary ring, seal chamber, stationary seat, rotating ring is coaxially fixed on axle sleeve, upper stationary ring is arranged on stationary seat, lower stationary ring is arranged on still mouth flange, rotating ring realizes being sealed and matched between upper stationary ring and lower stationary ring, seal chamber is fixed between stationary seat and still mouth flange, the outer side wall of seal chamber is respectively arranged with nitrogen inlet and nitrogen outlet, nitrogen inlet is opened in the downside of seal chamber, nitrogen outlet and nitrogen inlet are oppositely arranged on the upside of seal chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005043.XA CN102537369B (en) | 2012-01-01 | 2012-01-01 | Mechanical seal device for stirrer with vertically reciprocating stirring shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005043.XA CN102537369B (en) | 2012-01-01 | 2012-01-01 | Mechanical seal device for stirrer with vertically reciprocating stirring shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537369A CN102537369A (en) | 2012-07-04 |
| CN102537369B true CN102537369B (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210005043.XA Active CN102537369B (en) | 2012-01-01 | 2012-01-01 | Mechanical seal device for stirrer with vertically reciprocating stirring shaft |
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| Country | Link |
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| CN (1) | CN102537369B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487212B (en) * | 2013-09-11 | 2015-11-18 | 清华大学 | A kind of axis vertical adjustable mechanical seal test stand |
| CN104534095A (en) * | 2014-12-26 | 2015-04-22 | 大连华阳密封股份有限公司 | Mechanical seal for pressure filtering machine with large shaft telescopic amount |
| EP3767136A4 (en) * | 2018-03-14 | 2021-04-14 | Sealink Corp. | Rotating sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116066A (en) * | 1990-03-27 | 1992-05-26 | Utex Industries, Inc. | Mechanical seal construction and locking assembly for use therein |
| CN2746210Y (en) * | 2004-12-04 | 2005-12-14 | 倪文龙 | Mechanical sealing |
| CN201944265U (en) * | 2011-01-24 | 2011-08-24 | 昆山密友机械密封有限公司 | Modularized sealing device for kettle |
| CN202023927U (en) * | 2011-04-22 | 2011-11-02 | 刘俏良 | Special mechanical seal structure for polymeric kettle |
| CN202418595U (en) * | 2012-01-01 | 2012-09-05 | 浙江兰天机械密封件有限公司 | Mechanical sealing device of stirrer with up-and-down reciprocating stirring shaft |
-
2012
- 2012-01-01 CN CN201210005043.XA patent/CN102537369B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116066A (en) * | 1990-03-27 | 1992-05-26 | Utex Industries, Inc. | Mechanical seal construction and locking assembly for use therein |
| CN2746210Y (en) * | 2004-12-04 | 2005-12-14 | 倪文龙 | Mechanical sealing |
| CN201944265U (en) * | 2011-01-24 | 2011-08-24 | 昆山密友机械密封有限公司 | Modularized sealing device for kettle |
| CN202023927U (en) * | 2011-04-22 | 2011-11-02 | 刘俏良 | Special mechanical seal structure for polymeric kettle |
| CN202418595U (en) * | 2012-01-01 | 2012-09-05 | 浙江兰天机械密封件有限公司 | Mechanical sealing device of stirrer with up-and-down reciprocating stirring shaft |
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| Publication number | Publication date |
|---|---|
| CN102537369A (en) | 2012-07-04 |
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Denomination of invention: Mechanical seal device of agitator with reciprocating motion of agitator shaft Effective date of registration: 20200917 Granted publication date: 20150121 Pledgee: China Merchants Bank (CMB) Limited by Share Ltd. Wenzhou branch Pledgor: ZHEJIANG LANDTEC MECHANICAL SEALS Co.,Ltd. Registration number: Y2020330000721 |