CN103291927B - For the mechanical seal device of granule medium - Google Patents
For the mechanical seal device of granule medium Download PDFInfo
- Publication number
- CN103291927B CN103291927B CN201310212791.XA CN201310212791A CN103291927B CN 103291927 B CN103291927 B CN 103291927B CN 201310212791 A CN201310212791 A CN 201310212791A CN 103291927 B CN103291927 B CN 103291927B
- Authority
- CN
- China
- Prior art keywords
- seal ring
- fixed structure
- stationary
- stationary seal
- seal
- 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.)
- Active
Links
Landscapes
- Mechanical Sealing (AREA)
Abstract
For the mechanical seal device of granule medium, outside running shaft, be provided with stationary seal ring and rotating seal ring with axial relative mode, its relative axial end is sealing surface.Stationary seal ring through rotation prevention structure and circumferentially spaced spring location be arranged on fixed structure; Rotating seal ring is in transmission connection through drive mechanism and running shaft or axle sleeve.The rinse mouth that structure is by the road connected with washing solution providing source is offered at the seal face position of stationary seal ring.Sealing device is specially adapted to containing solid particles and/or the sealing of liquid medium with crystallization proclivity properties, the flushing of appropriate format washing solution is sent by the rinse mouth offered by seal face, effectively can avoid particle gathering at seal face place, and can effectively prevent from occurring crystallization in end face area.
Description
Technical field
The present invention relates to a kind of mechanical seal structure, particularly a kind ofly to adapt to containing particle and/or the mechanical seal device of liquid medium with crystallization proclivity properties.
Background technique
In modern industry application, particularly in conveying high temperature, high pressure or toxic fluid equipment, have employed the end surface mechanical sealing system realized by stationary seal ring and rotating seal ring more.The basic structure of this mechanical seal, includes and be provided with stationary seal ring and rotating seal ring with axial relative mode outside running shaft, and its relative axial end is sealing surface.Stationary seal ring wherein through rotation prevention structure and circumferentially spaced spring location be arranged on the fixed structures such as standstill seal ring seat or end cover, rotating seal ring is in transmission connection through drive mechanism and running shaft axle sleeve.Sealing structure can as required for the contacting mechanical seal of state type, or for different situations such as hydrostatic mechanical seals.In some commercial Application, can contain or even a large amount of solid particles impurity in pumped medium, and/or the composition containing easy crystallization tendency.Conventional mechanical seal structure worked after a period of time in these media, has solid particles thing and gather between its seal face, and/or between seal face, produced crystalline material due to the temperature variation sensitivity to seal face.These solid particles things and/or crystal are easy to the planeness destroying seal face, cause end wear, service life reduction, are difficult to ensure the conventional normal work be sealed in these media.
Summary of the invention
For above-mentioned situation, the invention provides a kind of providing can adapt to containing solid particles thing and/or there is the mechanical seal structure that the liquid medium of feature is inclined in crystallization, make sealing configuration in this type of liquid medium, avoid solid particles thing to gather and/or crystallization at seal face position, ensure the normal work of sealing.
The present invention is used for the mechanical seal device of granule medium, is the further improvement carried out based on conventional end surface mechanical sealing structure.Basic structure is the outside at running shaft equally, is provided with its relative axial end of stationary seal ring and rotating seal ring for sealing surface with axial relative mode.Stationary seal ring through rotation prevention structure and circumferentially spaced spring location be arranged on fixed structure, wherein fixed structure is preferably end cover; Rotating seal ring is in transmission connection through drive mechanism and running shaft or axle sleeve.Wherein, the rinse mouth that structure is by the road connected with washing solution providing source is offered at the seal face position of stationary seal ring.
Said pipeline structure in said structure, is preferably adopted as the coil pipe type structure of coiling outside stationary seal ring.Because this coil pipe type structure can have certain floatability, the floatability of stationary ring thus can not be affected.
In addition, above-mentioned said for carrying the pipeline structure of washing solution, can also adopt be arranged at locate stationary seal ring fixed structure in and the mode be connected with the washing solution delivery outlet that washing solution providing source is communicated with.
For making said structure have larger accommodation, above-mentioned on the fixed structure of said location stationary seal ring circumferentially spaced spring, be preferably adopted as be arranged at respectively can on this fixed structure adjusting axle in the spring seat of position.Better mode is that spring seat is assemblied on said fixed structure threadably.According to the difference of flushing flow rate, by the screw thread rotation number of turns (or other regulative mode) of Regulation spring seat, realize the adjustment to spring force, ensure the laminating that still can be embodied as well between the effect lower seal end face of washing solution needed for sealing.
Further, said for locating the fixed structure arranging stationary seal ring, there is wear-resistant material layer itself and stationary seal ring the surface-coated of position that be slidably matched, as adopted the modes such as spraying, surfacing at surface spraying cemented carbide, Cr
3c
2deng high hardness wear-resisting material coating conventional at present.
The end cover fixed structure of stationary seal ring and the position that is slidably matched of stationary seal ring are set in said location, usually the annular seal as forms such as O shape rubber seal is all provided with, between this annular seal and end cover fixed structure, be more preferably also provided with the support ring that friction factor is less than this annular seal friction factor simultaneously, as the support ring etc. of the materials such as engineering plastics, be jointly made up of the floating seal of stationary seal ring the support ring of the forms such as annular seal and engineering plastics such as O-ring seals.
Because the Seals such as O shape rubber seal have certain pre compressed magnitude, its directly and the fixed structure contact slide such as metallic material end cover, because there being friction factor larger and fragile.The support ring (as materials such as engineering plastics) with more low coefficient of friction (as lower than conventional rubber seal) material is provided with between this contact slide matching part of said fixed structure, and/or be coated with the high hardness materials such as above-mentioned cemented carbide at the sliding contact portion faces of this fixed structure and support ring, all ensure that stationary seal ring has higher floating performance by being conducive to, and strengthen the wear resistance at fixed structure and stationary seal ring floating seal place.
Be appreciated that thus, the seal arrangement of said structure of the present invention, by the washing solution of appropriate format being delivered to by the road the rinse mouth of seal face, rinses seal face, effectively can avoid particle gathering at seal face place, and/or effectively prevent from occurring crystallization in end face area.Adopt the washing solution delivery line of the modes such as coil pipe, flushing line can also be made to possess performance of well floating, the floatability of static components is not impacted.Further by the elastic force of spring seat Regulation spring, make when flushing flow rate is different, the laminating that seal face can be good, ensure that sealing is normal and run, expand the accommodation of above-mentioned seal arrangement further.In addition, wear-resistant material layer is coated with at the portion faces of the sliding contact of the Sealings such as fixed structure and seal ring such as gland, and/or after Sealing and fixed structure sliding contacting part interdigit add the support ring of low coefficient of friction further, can be conducive to ensureing and improve stationary seal ring (assembly) further there is higher floating performance and strengthen wear resistance, increase the service life.
Below in conjunction with the embodiment of accompanying drawing illustrated embodiment, foregoing of the present invention is described in further detail again.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following example.Without departing from the idea case in the present invention described above, the various replacement made according to ordinary skill knowledge and customary means or change, all should comprise within the scope of the invention.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention for the mechanical seal device of granule medium.
Embodiment
As shown in the figure be the basic structure of the present invention for the mechanical seal device of granule medium.Coordinating with running shaft 1 transmission and be provided with outside the axle sleeve 2 of O-ring seals 15 in fitting surface, be provided with stationary seal ring 8 and rotating seal ring 9 with axial relative mode, its relative axial end is sealing surface.Stationary seal ring 8 through rotation prevention structure 14 and circumferentially spaced spring 6 location be arranged on fixed structure (being end cover shown in figure) 5, wherein each spring 6 is all assemblied in the spring seat 3 on said fixed structure 5 with the engagement thread of adjustable axial position respectively, therebetween and be provided with O-ring seals 4.Rotating seal ring 9 is in transmission connection with running shaft axle sleeve 2 through the drive mechanism 11 of the forms such as driving pin, is provided with O shape rubber seal 10 between rotating seal ring 9 and axle sleeve 2.Offer the coil pipe type structural tube line structure 7 through coiling outside stationary seal ring 8 at the seal face position of stationary seal ring 8, be arranged at locate stationary seal ring 8 fixed structure (end cover) 5 in and the rinse mouth be connected with the washing solution delivery outlet that washing solution providing source is communicated with.For the portion faces that is slidably matched with stationary seal ring 8 on the fixed structure (end cover) 5 that location arranges stationary seal ring 8, be coated with cemented carbide, Cr
3c
2deng the wear-resistant material layer wear-resistant material layer 16 of high hardness material.Be provided with the annular seal 12 of the common type such as O shape rubber seal between position at this fixed structure (end cover) 5 and being slidably matched of stationary seal ring 8, and between this annular seal 12 and fixed structure (end cover) 5, be also provided with the support ring 13 that friction factor is less than the materials such as the engineering plastics of this annular seal 12 friction factor simultaneously.
Claims (8)
1. for the mechanical seal device of granule medium, stationary seal ring (8) and rotating seal ring (9) is provided with axial relative mode in running shaft (1) outside, its relative axial end is sealing surface, stationary seal ring (8) through rotation prevention structure (14) and circumferentially spaced spring (6) location be arranged on fixed structure (5), rotating seal ring (9) is in transmission connection through drive mechanism (11) and running shaft or axle sleeve (2), it is characterized in that offering at the seal face position of stationary seal ring (8) rinse mouth that structure (7) is by the road connected with washing solution providing source.
2. mechanical seal device as claimed in claim 1, is characterized in that said pipeline structure (7) is for coiling the coil pipe type structure outside stationary seal ring (8).
3. mechanical seal device as claimed in claim 1, it is characterized in that said pipeline structure (7) be arranged at locate stationary seal ring (8) fixed structure (5) in and be connected with the washing solution delivery outlet that washing solution providing source is communicated with.
4. mechanical seal device as claimed in claim 1, to it is characterized in that on the fixed structure (5) of said location stationary seal ring (8) circumferentially spaced spring (6), being arranged at respectively can at the upper adjusting axle of this fixed structure (5) in the spring seat (3) of position.
5. mechanical seal device as claimed in claim 4, is characterized in that said spring seat (3) is assemblied on said fixed structure (5) threadably.
6. the mechanical seal device as described in one of claim 1 to 5, is characterized in that the said fixed structure (5) for locating stationary seal ring (8) is end cover.
7. mechanical seal device as claimed in claim 6, for the portion faces that is slidably matched with stationary seal ring (8) on the fixed structure (5) that it is characterized in that said location stationary seal ring (8), is coated with wear-resistant material layer (16).
8. mechanical seal device as claimed in claim 7, it is characterized in that fixed structure (5) in said location stationary seal ring (8) and being slidably matched between position of stationary seal ring (8) are provided with annular seal (12), and between this annular seal (12) and fixed structure (5), be also provided with the support ring (13) that friction factor is less than this annular seal (12) friction factor simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310212791.XA CN103291927B (en) | 2013-06-01 | 2013-06-01 | For the mechanical seal device of granule medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310212791.XA CN103291927B (en) | 2013-06-01 | 2013-06-01 | For the mechanical seal device of granule medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103291927A CN103291927A (en) | 2013-09-11 |
| CN103291927B true CN103291927B (en) | 2016-01-06 |
Family
ID=49093274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310212791.XA Active CN103291927B (en) | 2013-06-01 | 2013-06-01 | For the mechanical seal device of granule medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291927B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799444B (en) * | 2018-08-30 | 2024-03-26 | 浙江工业大学 | Planetary differential radial double-end-face mechanical seal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298389Y (en) * | 1997-05-09 | 1998-11-25 | 自贡机械密封件厂 | Machinery sealing device with anti-block and abrasion resistant |
| CN201696282U (en) * | 2010-05-27 | 2011-01-05 | 宁波伏尔肯机械密封件制造有限公司 | Sealing device |
| CN203335862U (en) * | 2013-06-01 | 2013-12-11 | 四川日机密封件股份有限公司 | Mechanical sealing device used for granular media |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4227115B2 (en) * | 2005-04-01 | 2009-02-18 | 日本ピラー工業株式会社 | mechanical seal |
-
2013
- 2013-06-01 CN CN201310212791.XA patent/CN103291927B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298389Y (en) * | 1997-05-09 | 1998-11-25 | 自贡机械密封件厂 | Machinery sealing device with anti-block and abrasion resistant |
| CN201696282U (en) * | 2010-05-27 | 2011-01-05 | 宁波伏尔肯机械密封件制造有限公司 | Sealing device |
| CN203335862U (en) * | 2013-06-01 | 2013-12-11 | 四川日机密封件股份有限公司 | Mechanical sealing device used for granular media |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291927A (en) | 2013-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7798496B2 (en) | Rotary shaft sealing assembly | |
| AU2018203032B2 (en) | Media control valve | |
| US20170051762A1 (en) | Pressure exchange system with motor system and pressure compensation system | |
| US20120201706A1 (en) | Plunger Type Water Pump | |
| CN104315185A (en) | Double-scraper ultra-hard sealing ball valve | |
| US10215284B2 (en) | Flowline divertor seal with spring-energized sealing lips | |
| AU2012333224A1 (en) | Media control valve | |
| CN203335862U (en) | Mechanical sealing device used for granular media | |
| CN103291927B (en) | For the mechanical seal device of granule medium | |
| US20130045078A1 (en) | Bearing assembly for a vertical turbine pump | |
| CN201068884Y (en) | Sand pump mechanical sealing for slurry in petroleum solid control apparatus | |
| CN105605226B (en) | It is a kind of can be with the sealing device of sediment prevention | |
| JPS63190976A (en) | Mechanical shaft seal | |
| CN206257281U (en) | A kind of main shaft of vertical water turbine sealing device | |
| CN102661274A (en) | Concrete piston structure, pumping system and concrete pump | |
| US20150362079A1 (en) | Media Control Valve | |
| US20200370561A1 (en) | Centrifugal pump assembly | |
| CN202811478U (en) | Particle wear-resistance mechanical seal for pump | |
| CN103016354A (en) | Wear-resistant centrifugal pump | |
| CN202510340U (en) | Novel mechanical seal for slurry pump | |
| CN2298389Y (en) | Machinery sealing device with anti-block and abrasion resistant | |
| CN201116534Y (en) | Packaging machinery sealing used for water pump shaft sealing | |
| CN214662117U (en) | Rubber valve seat with double sealing effect | |
| CN202170888U (en) | Self-priming centrifugal slurry pump | |
| CN203335855U (en) | Self-adaptive sealing type mechanical seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Zepei Inventor after: Wu Xixi Inventor after: Chen Kan Inventor after: Zhou Guofeng Inventor after: Wang Chao Inventor after: Zhang Junkai Inventor after: Wang Xu Inventor after: Xue Xiaopan Inventor after: Li Zhishan Inventor after: Liu Wei Inventor after: Cao Tingfa Inventor before: Huang Zepei Inventor before: Zhang Junkai Inventor before: Wang Xu Inventor before: Wang Chao Inventor before: Xue Xiaopan Inventor before: Li Zhishan Inventor before: Liu Wei |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150916 Address after: Vuko Xisi road Chengdu City, Sichuan province 610045 No. 8 Applicant after: Sichuan Sunny Seal Co., Ltd. Applicant after: Zhongkehua Nuclear Power Technology Institute Co., Ltd. Address before: Vuko Xisi road Chengdu City, Sichuan province 610045 No. 8 Applicant before: Sichuan Sunny Seal Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Vuko Xisi road Chengdu City, Sichuan province 610045 No. 8 Co-patentee after: China Nuclear Power Technology Research Institute Co.,Ltd. Patentee after: Zhongmi Holding Co., Ltd Address before: Vuko Xisi road Chengdu City, Sichuan province 610045 No. 8 Co-patentee before: China Nuclear Power Technology Research Institute Co.,Ltd. Patentee before: SICHUAN SUNNY SEAL Co.,Ltd. |