CN203023025U - Double mechanical seal for fluoroplastic pump - Google Patents
Double mechanical seal for fluoroplastic pump Download PDFInfo
- Publication number
- CN203023025U CN203023025U CN 201220574949 CN201220574949U CN203023025U CN 203023025 U CN203023025 U CN 203023025U CN 201220574949 CN201220574949 CN 201220574949 CN 201220574949 U CN201220574949 U CN 201220574949U CN 203023025 U CN203023025 U CN 203023025U
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- CN
- China
- Prior art keywords
- stationary ring
- ring
- seat
- spring
- rotating
- 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
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Abstract
The utility model relates to a double mechanical seal for a fluoroplastic pump. The double mechanical seal for the fluoroplastic pump comprises a stationary ring I sealing flat gasket, a stationary ring O type seal ring, a stationary ring I, a moving ring I, a moving ring seat I, a spring plate, a spring seat, rotating prevention screws, a moving ring seat O type seal ring, a spring seat O type seal ring, a moving ring seat II, a moving ring II, a stationary ring II, a stationary ring II sealing flat gasket and a spring. The double mechanical seal for the fluoroplastic pump is characterized in that a semi-circle face is machined on the outer circle of the stationary ring I to prevent the stationary ring I from rotating in the radial direction; the moving ring I is in hot charging and embedded on the moving ring seat I, and the moving ring I and the moving ring seat I form a sealing face to seal media; the moving ring II is in hot charging and embedded on the moving ring seat II, and the moving ring seat II and the stationary ring II form a sealing face to seal cooling water; and the spring seat is positioned on a shaft through two rotating prevention screws, a hole for mounting of the spring in the spring seat is a through hole, and the spring is shared by the stationary ring I and the stationary ring II in common. The double mechanical seal for the fluoroplastic pump is simple in structure, reliable in sealing, and short in axial dimension, solves the problem that the axial dimension is uncertain in tapered positioning for the fluoroplastic pump, and can replace an externally-mounted type mechanical seal.
Description
Technical field
The utility model relates to a kind of parts of pump, relates to specifically a kind of fluoroplastic pump double mechanical seal.
Background technique
Carry on PVC＝polyvinyl chloride project, chlor-alkali project, PVC project hydrochloric acid such as 10-31% concentration, sodium hypochlorite, sodium hydroxide etc. volatile, deep-etching is arranged, when the medium of crystallization is arranged, fluoroplastic pump external mechanical seal used at present can not be satisfied the demand.Its main cause is that external mechanical seal is single mechanical end face seal, can not add cooling water, and volatile concentrated hydrochloric acid can evaporate from sealing surface, pollutes environment; And sodium hypochlorite, sodium hydroxide medium that crystallization is arranged when start pump next time, easily damage mechanical seal owing to not having cooling water in time to rinse the crystal of sealing surface, cause fault; Simultaneously external mechanical seal is due to compact structure, and the axial dimension of whole pump is short, end seal that therefore can't selection standard.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, a kind of simple in structure, a kind of fluoroplastic pump double mechanical seal that can replace external mechanical seal is provided, thereby efficiently solves problems of the prior art.
The purpose of this utility model can be by realizing by the following technical solutions:
Described a kind of fluoroplastic pump double mechanical seal includes stationary ring I sealing plain cushion, stationary ring O RunddichtringO, stationary ring I, stationary ring I stop pin, stationary ring I compressing tablet, rotating ring I, rotating seat I, spring holder, spring seat, anti-turn screw, rotating seat O RunddichtringO, spring seat O RunddichtringO, rotating seat II, rotating ring II, stationary ring II, stationary ring II sealing plain cushion, spring.It is characterized in that: processing one semi circular surface on the cylindrical of stationary ring I prevents that stationary ring I is at radial rotating; Rotating ring I hot charging is set on rotating seat I, forms sealing surface, sealing medium with rotating ring I; Rotating ring II hot charging is set on rotating seat II, forms sealing surface with stationary ring II, the sealing cooling water; Spring seat is positioned on axle with 2 anti-turn screws; The hole of spring seat mounting spring is through hole, and spring is that stationary ring I and stationary ring II share.
Preferably, the material of described rotating ring I, stationary ring I is silicon carbide.
Preferably, the material of described rotating ring II is silicon carbide, and the material of stationary ring II is for soaking furans graphite.
The beneficial effects of the utility model are:
1, the hole of spring seat mounting spring is through hole, and spring is that stationary ring I and stationary ring II share, thereby has shortened axial dimension, can replace external mechanical seal.
2, rotating ring intensity is high, seals more reliable.
3, structural type is simple, and sealing life is high, the uncertain problem of axial dimension when having overcome fluoroplastic pump and locating with tapering.
Description of drawings:
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Accompanying drawing is structural representation of the present utility model.
In accompanying drawing: 1. stationary ring seals plain cushion, 2. stationary ring O type circle, 3. stationary ring I, 4. stationary ring I stop pin, 5. stationary ring I compressing tablet, 6. rotating ring I, 7. rotating seat I, 8. spring holder, 9. spring seat, 10. anti-turn screw, 11. rotating seat O RunddichtringOs, 12. spring seat O RunddichtringO, 13. rotating seat II, 14. rotating ring II, 15. stationary ring II, 16. stationary ring II sealing gaskets, 17. pump shafts, 18. seal end plate, 19. springs, 20. pump covers.
Embodiment:
Describe specific embodiment of the utility model in detail below in conjunction with accompanying drawing;
see accompanying drawing, a kind of fluoroplastic pump double mechanical seal, include stationary ring I sealing plain cushion (1), stationary ring O RunddichtringO (2), stationary ring I (3), stationary ring I stop pin (4), stationary ring I compressing tablet (5), rotating ring I (6), rotating seat I (7), spring holder (8), spring seat (9), anti-turn screw (10), rotating seat O RunddichtringO (11), spring seat O RunddichtringO (12), rotating seat II (13), rotating ring II (14), stationary ring II (15), stationary ring II seals plain cushion (16), spring (19).It is characterized in that: stationary ring I sealing plain cushion (1) and stationary ring O RunddichtringO (2) are contained in sealing jointly between pump cover (20) and stationary ring I (3), make the sealing of stationary ring I (3) more reliable; Stationary ring I compressing tablet (5) is contained on the semicircle of stationary ring I (3) cylindrical, compresses stationary ring I (3); Stationary ring I stop pin (4) is contained on stationary ring I compressing tablet (5), prevents that stationary ring I (3) from rotating; Rotating ring I (6) hot charging is set on rotating seat I (7), forms sealing surface, sealing medium with stationary ring I (3); Spring holder (8) has 2, is contained in respectively the both sides of spring seat (9), transmits elastic force to rotating ring I (6) and rotating ring II (14), produces sealing force, sealing medium and cooling water; Spring seat (9) is positioned on pump shaft (17) with 2 anti-turn screws (10), transmitting torque; Rotating seat O RunddichtringO (11) has 2, respectively between spring seat (9) and rotating seat I (7), rotating seat II (13), and sealing medium and cooling water; Spring seat O RunddichtringO (12) has 2, is contained between pump shaft (17) and spring seat (9), prevents that fed sheet of a media from spilling from pump shaft (17); Rotating ring II (14) hot charging is set on rotating seat II (13), forms sealing surface with stationary ring II (15), the sealing cooling water; Stationary ring II sealing plain cushion (16) is contained between stationary ring II (15) and seal end plate (18), the sealing cooling water; Spring (19) has 4, be arranged on spring seat (9) along axle is radially uniform, the hole of spring seat (9) mounting spring (19) is through hole, and spring (19) is that stationary ring I (3) and stationary ring II (15) share, produce elastic force, form sealing force; The material of described rotating ring I (6), rotating ring II (14), stationary ring I (3) is silicon carbide, and the material of stationary ring II (15) is for soaking furans graphite.
Above-described is only preferred embodiment of the present utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, as the common practise of related domain, can also make other equivalent modifications and improvement, also should be considered as protection domain of the present utility model.
Claims (4)
1. a fluoroplastic pump double mechanical seal, include stationary ring I sealing plain cushion (1), stationary ring O RunddichtringO (2), stationary ring I (3), stationary ring I stop pin (4), stationary ring I compressing tablet (5), rotating ring I (6), rotating seat I (7), spring holder (8), spring seat (9), anti-turn screw (10), rotating seat O RunddichtringO (11), spring seat O RunddichtringO (12), rotating seat II (13), rotating ring II (14), stationary ring II (15), stationary ring II seals plain cushion (16), spring (19), it is characterized in that: stationary ring I sealing plain cushion (1) and stationary ring O RunddichtringO (2) are contained between pump cover (20) and stationary ring I (3), stationary ring I compressing tablet (5) is contained on the semicircle of stationary ring I (3) cylindrical, compress stationary ring I (3), stationary ring I stop pin (4) is contained on stationary ring I compressing tablet (5), rotating ring I (6) hot charging, be set on rotating seat I (7), form sealing surface with stationary ring I (3), spring holder (8) has 2, be contained in respectively the both sides of spring seat (9), spring seat (9) is positioned on pump shaft (17) with 2 anti-turn screws (10), rotating seat O RunddichtringO (11) has 2, respectively at spring seat (9) and rotating seat I (7), between rotating seat II (13), spring seat O RunddichtringO (12) has 2, be contained between pump shaft (17) and spring seat (9), rotating ring II (14) hot charging, be set on rotating seat II (13), form sealing surface with stationary ring II (15), stationary ring I sealing plain cushion (16) is contained between stationary ring II (15) and seal end plate (18), spring (17) has 4, is arranged on spring seat (9) along axle is radially uniform.
2. a kind of fluoroplastic pump double mechanical seal according to claim 1, it is characterized in that: the hole of spring seat (9) mounting spring (17) is through hole, spring (17) is that stationary ring I (3) and stationary ring II (15) share.
3. a kind of fluoroplastic pump double mechanical seal according to claim 1, it is characterized in that: the material of described rotating ring I (6), stationary ring I (3) is silicon carbide.
4. a kind of fluoroplastic pump double mechanical seal according to claim 1, it is characterized in that: the material of described rotating ring II (14) is silicon carbide, the material of stationary ring II (15) is for soaking furans graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574949 CN203023025U (en) | 2012-11-02 | 2012-11-02 | Double mechanical seal for fluoroplastic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574949 CN203023025U (en) | 2012-11-02 | 2012-11-02 | Double mechanical seal for fluoroplastic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023025U true CN203023025U (en) | 2013-06-26 |
Family
ID=48647014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574949 Expired - Fee Related CN203023025U (en) | 2012-11-02 | 2012-11-02 | Double mechanical seal for fluoroplastic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023025U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514888A (en) * | 2014-12-26 | 2015-04-15 | 大连华阳密封股份有限公司 | Mechanical seal for large-shaft diameter equipment |
| CN108730225A (en) * | 2018-06-02 | 2018-11-02 | 芜湖市中天密封件有限公司 | A kind of non-contact chemical industry pump seal of modified |
| CN108730224A (en) * | 2018-06-02 | 2018-11-02 | 芜湖市中天密封件有限公司 | A kind of non-contact chemical industry pump seal |
| CN108757483A (en) * | 2018-06-02 | 2018-11-06 | 芜湖市中天密封件有限公司 | A kind of efficiently non-contact chemical industry pump seal |
-
2012
- 2012-11-02 CN CN 201220574949 patent/CN203023025U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514888A (en) * | 2014-12-26 | 2015-04-15 | 大连华阳密封股份有限公司 | Mechanical seal for large-shaft diameter equipment |
| CN108730225A (en) * | 2018-06-02 | 2018-11-02 | 芜湖市中天密封件有限公司 | A kind of non-contact chemical industry pump seal of modified |
| CN108730224A (en) * | 2018-06-02 | 2018-11-02 | 芜湖市中天密封件有限公司 | A kind of non-contact chemical industry pump seal |
| CN108757483A (en) * | 2018-06-02 | 2018-11-06 | 芜湖市中天密封件有限公司 | A kind of efficiently non-contact chemical industry pump seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131102 |