CN102330819A - Mechanical sealing device - Google Patents
Mechanical sealing device Download PDFInfo
- Publication number
- CN102330819A CN102330819A CN201110243038A CN201110243038A CN102330819A CN 102330819 A CN102330819 A CN 102330819A CN 201110243038 A CN201110243038 A CN 201110243038A CN 201110243038 A CN201110243038 A CN 201110243038A CN 102330819 A CN102330819 A CN 102330819A
- Authority
- CN
- China
- Prior art keywords
- ring
- axle sleeve
- gland
- packing
- static components
- 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.)
- Granted
Links
Images
Landscapes
- Sealing Devices (AREA)
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a mechanical sealing device. The mechanical sealing device comprises a rotation shaft, a shaft sleeve arranged on the rotation shaft, a moving ring seat fixedly supported on the shaft sleeve, a moving ring which is arranged in the moving ring seat and fixedly supported with the shaft sleeve, a static ring component which is in friction matching with the moving ring and a press cover arranged on the static ring component, wherein the moving ring seat is provided with a pumping thread; a first spring is arranged between the press cover and the static ring component; a cylindrical pin is arranged between the press cover and the static ring component; a cut-off ring is arranged between the press cover and the shaft sleeve; a second spring is arranged in the cut-off ring; a press plate is arranged on one side of the cut-off ring; an installation piece is arranged on one side of the press cover; a clamping groove used for clamping the installation piece is formed on the shaft sleeve; an upper expansion ring and a lower expansion ring are arranged on one side of the installation piece of the shaft sleeve; a water interception sleeve is arranged on the rotation shaft; a maze is formed between the water interception sleeve and the shaft sleeve; and a leakage mouth is formed on the press cover. The mechanical sealing device is high in sealing performance, and the leakage quantity of medium water is low.
Description
Technical field
The present invention relates to a kind of mechanical seal device.
Background technique
In industry such as petroleum refining and chemical industry; Have and surpass 80% conveying liquid medium rotating equipment employing mechanical seal; The zero effusion of mechanical seal, high reliability, long lifetime, low wearing and tearing etc. are the research and development directions in mechanical seal field; In the common mechanical seal arrangement, require WATER AS FLOW MEDIUM such as sealing cooling liquid or isolation buffer liquid can circulate, reduce the seal operation temperature to take away the heat that seal face produces.And in daily using process, often have WATER AS FLOW MEDIUM and from seal face, leak.
Therefore, be necessary to provide a kind of mechanical seal device that WATER AS FLOW MEDIUM is leaked that reduces.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can reduce the mechanical seal device that WATER AS FLOW MEDIUM is leaked.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of mechanical seal device, it comprises: rotating shaft, be installed on axle sleeve in the rotating shaft, be immobilizated in rotating seat on the axle sleeve, be installed in the rotating seat and with axle sleeve mutually fixing rotating ring, with the static components of rotating ring frictional fit, be installed on the gland on the static components; Said rotating seat is provided with pumping thread; Be provided with axle sleeve O type circle between said axle sleeve and the rotating shaft, be provided with packing ring and stationary ring O type circle between said gland and the static components, be provided with first spring between said gland and the static components; Be provided with straight pin between said gland and the static components; Be provided with the ring that dams between said gland and the axle sleeve, in the said ring that dams second spring be installed, a said side of damming ring is equipped with pressing plate; One side of said gland is provided with installation sheet; Said axle sleeve is provided with the draw-in groove that holds installation sheet, and said axle sleeve is equipped with the cover that intercepts water at the following packing that a side of installation sheet is equipped with packing and matches with last packing in the said rotating shaft; Said intercepting water forms the labyrinth between cover and the axle sleeve, and said gland also is provided with leakage hole.
The invention has the beneficial effects as follows: the invention has the beneficial effects as follows: the step and the cover that intercepts water through axle sleeve one end produce the labyrinth seal effect; Effectively reduce the pressure of leaking medium; Leaking medium after the said step-down is through being equipped with second spring in the said ring that dams; The cover that intercepts water is installed in the said rotating shaft, said intercepting water when forming the labyrinth between cover and the axle sleeve, leaking medium pressure is lowered once more; Thereby can reduce the pressure that WATER AS FLOW MEDIUM is leaked greatly, thereby make it all guide to safe assembling position by leakage hole.
Description of drawings
Fig. 1 is the structural representation of mechanical seal device.
Among Fig. 1: 1, rotating shaft, 10, the cover that intercepts water, 100, mechanical seal device, 11, the labyrinth, 2, axle sleeve, 20, axle sleeve O type circle; 21, draw-in groove, 22, go up packing, 220, hex head screw, 23, packing down, 3, rotating seat, 4, rotating ring; 5, static components, 50, packing ring, 51, stationary ring O type circle, 6, gland, 60, first spring, 62, ring dams; 63, second spring, 64, pressing plate, 65, installation sheet, 650, hexagon socket cap head screw, 66, leakage hole.
Embodiment
See also Fig. 1, a kind of mechanical seal device 100, it comprises: rotating shaft 1, be installed on axle sleeve 2 in the rotating shaft 1, be immobilizated in rotating seat 3 on the axle sleeve 2, be installed in the rotating seat 3 and with axle sleeve 2 mutually fixing rotating ring 4, with the static components 5 of rotating ring 4 frictional fit, be installed on the gland 6 on the static components 5; Said rotating seat 3 is provided with pumping thread; Be provided with axle sleeve O type circle 20 between said axle sleeve 2 and the rotating shaft 1, be provided with packing ring 50 and stationary ring O type circle 51 between said gland 6 and the static components 5, be provided with first spring 60 between said gland 6 and the static components 5; Be provided with straight pin between said gland 6 and the static components 5; Thereby can prevent that gland 6 with respect to static components 5 rotations, is provided with the ring 62 that dams between said gland 6 and the axle sleeve 2, in the said ring 62 that dams second spring 63 is installed; A said side of damming ring 62 is equipped with pressing plate 64; One side of said gland 6 is provided with installation sheet 65, and said axle sleeve 2 is provided with the draw-in groove 21 that holds installation sheet 65, thereby makes gland 6 location.The following packing 23 that said axle sleeve 2 is equipped with packing 22 and matches with last packing 22 in a side of installation sheet 65, thereby fastening axle sleeve 2 being equipped with the cover 10 that intercepts water in the said rotating shaft 1, the said formation labyrinth 11 between cover 10 and the axle sleeve 2 of intercepting water.Said gland 6 also is provided with leakage hole 66, to get rid of the WATER AS FLOW MEDIUM of leaking, said going up between packing 22 and the following packing 23 through hex head screw 220 location.Said installation sheet 65 is through hexagon socket cap head screw 650 and gland 6 fixing mutually.
Said WATER AS FLOW MEDIUM is got into by import A; The centrifugal action of getting rid of liquid hole 30 through rotating seat 3 throws away WATER AS FLOW MEDIUM from get rid of liquid hole 30, thereby WATER AS FLOW MEDIUM is flowed out from outlet B; Get in the cooling unit then and cool off, more cooled cooling liquid is sent in the import A.
The present invention produces the labyrinth seal effect through the step of axle sleeve 2 one ends with the cover 10 that intercepts water; Effectively reduce the pressure of leaking medium, the leaking medium after the said step-down is equipped with the cover 10 that intercepts water through in the said ring 62 that dams second spring being installed in the said rotating shaft; Said intercepting water when forming the labyrinth between cover 10 and the axle sleeve 2; Leaking medium pressure is lowered once more, thereby can reduce the pressure that WATER AS FLOW MEDIUM is leaked greatly, thereby makes it all guide to safe assembling position by leakage hole.
Claims (3)
1. mechanical seal device; It is characterized in that: this mechanical seal device comprises: rotating shaft, be installed on axle sleeve in the rotating shaft, be immobilizated in rotating seat on the axle sleeve, be installed in the rotating seat and with axle sleeve mutually fixing rotating ring, with the static components of rotating ring frictional fit, be installed on the gland on the static components, said rotating seat is provided with pumping thread, is provided with axle sleeve O type circle between said axle sleeve and the rotating shaft; Be provided with packing ring and stationary ring O type circle between said gland and the static components; Be provided with first spring between said gland and the static components, be provided with straight pin between said gland and the static components, be provided with the ring that dams between said gland and the axle sleeve; In the said ring that dams second spring is installed; A said side of damming ring is equipped with pressing plate, and a side of said gland is provided with installation sheet, and said axle sleeve is provided with the draw-in groove that holds installation sheet; The following packing that said axle sleeve is equipped with packing and matches with last packing in a side of installation sheet; The cover that intercepts water is installed in the said rotating shaft, and said intercepting water forms the labyrinth between cover and the axle sleeve, and said gland also is provided with leakage hole.
2. a kind of mechanical seal device as claimed in claim 1 is characterized in that: said going up between packing and the following packing through the hex head screw location.
3. according to claim 1 or claim 2 a kind of mechanical seal device is characterized in that: said installation sheet is through hexagon socket cap head screw and gland fixing mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102430388A CN102330819B (en) | 2011-08-24 | 2011-08-24 | Mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102430388A CN102330819B (en) | 2011-08-24 | 2011-08-24 | Mechanical sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102330819A true CN102330819A (en) | 2012-01-25 |
| CN102330819B CN102330819B (en) | 2012-10-31 |
Family
ID=45482709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102430388A Active CN102330819B (en) | 2011-08-24 | 2011-08-24 | Mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102330819B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678929A (en) * | 2012-04-27 | 2012-09-19 | 大连华阳光大密封有限公司 | Bearing protection device used for sealing of bottom stirrer |
| CN102966739A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Bellows mechanical sealing device with self-circulation function |
| CN103867232A (en) * | 2014-03-13 | 2014-06-18 | 江西华电电力有限责任公司 | Screw expander with good sealing property |
| CN106762798A (en) * | 2016-12-21 | 2017-05-31 | 张军 | A kind of oil-gas mixed delivery pump mechanical seal |
| CN110206890A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | Interior leakage collecting tank applied to enamel mechanically-sealing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1184742A1 (en) * | 1983-11-02 | 1985-10-15 | Предприятие П/Я В-8745 | Stern deadwood sealing |
| EP1018613A2 (en) * | 1999-01-06 | 2000-07-12 | Rolls-Royce Plc | A seal |
| CN2489123Y (en) * | 2001-03-23 | 2002-05-01 | 靖江市长江泵阀制造有限公司 | Multi-stage immersion centrifugal pump |
| CN102011865A (en) * | 2010-10-15 | 2011-04-13 | 新疆乌苏市北方新科有限公司 | Split type solid dust mechanical seal system |
| CN202215743U (en) * | 2011-08-24 | 2012-05-09 | 江苏华青流体科技有限公司 | Mechanical sealing device |
-
2011
- 2011-08-24 CN CN2011102430388A patent/CN102330819B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1184742A1 (en) * | 1983-11-02 | 1985-10-15 | Предприятие П/Я В-8745 | Stern deadwood sealing |
| EP1018613A2 (en) * | 1999-01-06 | 2000-07-12 | Rolls-Royce Plc | A seal |
| CN2489123Y (en) * | 2001-03-23 | 2002-05-01 | 靖江市长江泵阀制造有限公司 | Multi-stage immersion centrifugal pump |
| CN102011865A (en) * | 2010-10-15 | 2011-04-13 | 新疆乌苏市北方新科有限公司 | Split type solid dust mechanical seal system |
| CN202215743U (en) * | 2011-08-24 | 2012-05-09 | 江苏华青流体科技有限公司 | Mechanical sealing device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678929A (en) * | 2012-04-27 | 2012-09-19 | 大连华阳光大密封有限公司 | Bearing protection device used for sealing of bottom stirrer |
| CN102966739A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Bellows mechanical sealing device with self-circulation function |
| CN102966739B (en) * | 2012-12-05 | 2015-06-03 | 东莞市华汇精密机械有限公司 | Bellows mechanical sealing device with self-circulation function |
| CN103867232A (en) * | 2014-03-13 | 2014-06-18 | 江西华电电力有限责任公司 | Screw expander with good sealing property |
| CN106762798A (en) * | 2016-12-21 | 2017-05-31 | 张军 | A kind of oil-gas mixed delivery pump mechanical seal |
| CN110206890A (en) * | 2019-06-06 | 2019-09-06 | 密友集团有限公司 | Interior leakage collecting tank applied to enamel mechanically-sealing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102330819B (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102330819B (en) | Mechanical sealing device | |
| CN201794774U (en) | Mechanical sealing device for hot water pump | |
| CN102330820B (en) | Mechanical seal device | |
| CN202392110U (en) | Shaft sealing device of horizontal scraper centrifuge | |
| CN104343722A (en) | Floating ring seal device | |
| CN202251058U (en) | Oil film double mechanical sealing device for compressors | |
| CN202215743U (en) | Mechanical sealing device | |
| CN104197025B (en) | A kind of combination seal water-cooling bearing block of large fan | |
| CN203702642U (en) | Low-temperature large-shaft-diameter dry gas sealing device for centrifugal compressor | |
| CN204329585U (en) | The carbon seal ring hermetically-sealed construction of rotary furnace | |
| CN207395458U (en) | A kind of sealer with assembled for rotary reactor | |
| CN103363071B (en) | A kind of wind turbine gearbox planetary stage lubrication sealing configuration | |
| CN202402083U (en) | High-pressure end sealing device of turbine shaft | |
| CN102305105B (en) | Sealing structure of screw expander | |
| CN202900747U (en) | Mechanical seal device capable of enabling cooling liquid to be added | |
| CN203175986U (en) | Petrochemical pump cover | |
| CN204201098U (en) | A kind of unidirectional combination ring gear seal arrangement | |
| CN203796969U (en) | Labyrinth type shutdown seal device | |
| CN204201096U (en) | A kind of export-oriented ring gear seal arrangement | |
| CN102937185A (en) | Multiple shaft seal structure | |
| CN203273111U (en) | Rotary connector with in-place leakage detecting function | |
| CN203009373U (en) | Oil seal structure for bearing chamber | |
| CN203670791U (en) | Medium-crystallization prevention or medium-gasifying prevention single end face sealing structure | |
| CN103603803B (en) | A kind of water vapor screw compressor shaft seal structure | |
| CN202510412U (en) | Gas sealing device of main shaft of fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |