CN207093773U - A kind of mechanical seal with swirl vane - Google Patents
A kind of mechanical seal with swirl vane Download PDFInfo
- Publication number
- CN207093773U CN207093773U CN201721034574.6U CN201721034574U CN207093773U CN 207093773 U CN207093773 U CN 207093773U CN 201721034574 U CN201721034574 U CN 201721034574U CN 207093773 U CN207093773 U CN 207093773U
- Authority
- CN
- China
- Prior art keywords
- spring base
- spiral
- mechanical seal
- spring
- flow type
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of mechanical seal with swirl vane is the utility model is related to, it is mainly by spring, spring base, rotating ring, spiral-flow type blade, stationary ring, machine sealed cover composition, it is characterized in that, spiral-flow type blade is carried on spring base, spiral-flow type blade forms one with spring base, and spring base is fixed on axle or axle sleeve by holding screw, spring is arranged on inside spring base U-type groove, and stationary ring carries out pin joint by stop pin and machine sealed cover.The mechanical seal structure is simple; easy to assemble, machine envelope inner impeller forms certain pressure difference, while playing more preferable sealing effectiveness; dynamic and static ring can be preferably protected not destroyed by solid particles such as the grains of sand in liquid stream, suitable for the sealing of the rotary shaft of the rotating machineries such as centrifugal pump, reactor agitator.
Description
Technical field
The utility model is related to field of sealing technology, more particularly to a kind of mechanical seal with swirl vane, suitable for centrifugal pump,
The sealing of the rotary shaft of the rotating machineries such as reactor agitator.
Background technology
Mechanical seal is a kind of gland seal device of rotating machinery.Because power transmission shaft is applied in inside and outside equipment, so as to which axle is with setting
A circumferential clearance between standby be present, the medium in equipment is leaked out by the gap, if pressure is more than air in equipment
Pressure, then fluid then can be to outward leakage in equipment, it is therefore necessary to has a gland seal device for preventing leakage.Relative to packing seal,
Helixseal etc., mechanical seal are a kind of more excellent gland seal devices of sealing property, but certain density when containing in liquid
During solid particle, easily there is abrasion aggravation in mechanical seal, and static and dynamic sealing interannular the problems such as bite occurs, can cause mechanical seal
Damage, the reliability of mechanical seal is had a strong impact on, reduce the service life of mechanical seal.
The content of the invention
To solve the above mentioned problem of prior art, the utility model proposes a kind of with the mechanical close of spiral-flow type blade
Envelope, the mechanical seal structure is simple, easy to assemble, and machine envelope inner impeller forms certain pressure difference, while playing more preferable sealing effectiveness, energy
Dynamic and static ring is preferably protected not destroyed by solid particles such as the grains of sand in liquid stream.
The technical solution adopted in the utility model is：
The mechanical seal with swirl vane in the utility model, mainly by spring (5), spring base (4), rotating ring (7), rotation
Streaming blade (6), stationary ring (11), machine sealed cover (10) composition, it is characterised in that spiral-flow type blade (6) is carried on spring base, is revolved
Streaming blade (6) forms one with spring base (4), and spring base (4) is fixed on axle (1) or axle sleeve (2) by holding screw (3)
On, spring (5) is arranged on inside spring base U-type groove, and stationary ring (11) carries out pin joint by stop pin (9) and machine sealed cover (10),
Wherein described rotating ring (7) and axle sleeve (2), stationary ring (11) and machine sealed cover (10), machine sealed cover (10) are provided with O with equipment end
Type sealing ring (8).
Wherein, it is helico-axial blade for spiral-flow type blade (6), its number of blade is 2 to 4.
The beneficial effects of the utility model are:
The setting of spring base forward spin flow blade can effectively protect static and dynamic sealing ring from the infringement of the solid particles such as the grains of sand, drop
The wear extent of low mechanical seal, static and dynamic sealing interannular can be reduced to a certain extent and the problems such as bite and technological difficulties occurs, can
Largely prevent medium from revealing, substantially increase the reliability and service life of mechanical seal, meanwhile, in the utility model
Mechanical seal structure design it is simple, it is easy for installation.
The utility model is tried out through user, and as a result reflection is good.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the embodiment of mechanical seal one with swirl vane of the utility model；
In figure, 1. axles；2. axle sleeve；3. holding screw；4. spring base；5. spring；6. spiral-flow type blade；7. rotating ring；8.O types
Sealing ring；9. stop pin；10. machine sealed cover；11. stationary ring.
Embodiment
The utility model is introduced with reference to the accompanying drawings and detailed description.
It is as shown in Figure 1 a kind of structure diagram of the embodiment of mechanical seal one with swirl vane of the utility model；
The mechanical seal with swirl vane in the utility model, mainly by spring (5), spring base (4), rotating ring (7), rotation
Streaming blade (6), stationary ring (11), machine sealed cover (10) composition, it is characterised in that spiral-flow type blade (6) is carried on spring base, is revolved
Streaming blade (6) forms one with spring base (4), and spring base (4) is fixed on axle (1) or axle sleeve (2) by holding screw (3)
On, spring (5) is arranged on inside spring base U-type groove, and stationary ring (11) carries out pin joint by stop pin (9) and machine sealed cover (10),
Wherein described rotating ring (7) and axle sleeve (2), stationary ring (11) and machine sealed cover (10), machine sealed cover (10) are provided with O with equipment end
Type sealing ring (8).
Wherein, it is helico-axial blade for spiral-flow type blade (6), its number of blade is 2 to 4.
The scope of protection of the utility model is not limited to above-described embodiment, also comprising other in the utility model concept
Embodiment and variation.
Claims (2)
1. a kind of mechanical seal with swirl vane, mainly by spring (5), spring base (4), rotating ring (7), spiral-flow type blade (6),
Stationary ring (11), machine sealed cover (10) composition, it is characterised in that spiral-flow type blade (6), spiral-flow type blade (6) are carried on spring base
One is formed with spring base (4), spring base (4) is fixed on axle (1) or axle sleeve (2) by holding screw (3), spring (5) peace
Inside spring base U-type groove, stationary ring (11) carries out pin joint by stop pin (9) and machine sealed cover (10), wherein the rotating ring
(7) it is provided with O-ring seal (8) with equipment end with axle sleeve (2), stationary ring (11) and machine sealed cover (10), machine sealed cover (10).
A kind of 2. mechanical seal with swirl vane according to claim 1, it is characterised in that wherein described spiral-flow type
Blade (6) is helico-axial blade, and its number of blade is 2 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034574.6U CN207093773U (en) | 2017-08-17 | 2017-08-17 | A kind of mechanical seal with swirl vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034574.6U CN207093773U (en) | 2017-08-17 | 2017-08-17 | A kind of mechanical seal with swirl vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093773U true CN207093773U (en) | 2018-03-13 |
Family
ID=61542083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721034574.6U Expired - Fee Related CN207093773U (en) | 2017-08-17 | 2017-08-17 | A kind of mechanical seal with swirl vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139923A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of split spring mechanical seal part and its preparation process |
| CN114718902A (en) * | 2022-04-26 | 2022-07-08 | 昆明理工大学 | Axial-flow compressed-air pressurized impeller assembly in shaft seal cavity and dry air seal structure |
-
2017
- 2017-08-17 CN CN201721034574.6U patent/CN207093773U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139923A (en) * | 2018-09-28 | 2019-01-04 | 安徽安密机械密封有限公司 | A kind of split spring mechanical seal part and its preparation process |
| CN114718902A (en) * | 2022-04-26 | 2022-07-08 | 昆明理工大学 | Axial-flow compressed-air pressurized impeller assembly in shaft seal cavity and dry air seal structure |
| CN114718902B (en) * | 2022-04-26 | 2024-01-12 | 昆明理工大学 | Impeller assembly for axial flow pressure air pressurization in shaft sealing cavity and dry air sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20190817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |