CN204677490U - gas-liquid two-phase fluid mechanical seal device - Google Patents
gas-liquid two-phase fluid mechanical seal device Download PDFInfo
- Publication number
- CN204677490U CN204677490U CN201520297369.3U CN201520297369U CN204677490U CN 204677490 U CN204677490 U CN 204677490U CN 201520297369 U CN201520297369 U CN 201520297369U CN 204677490 U CN204677490 U CN 204677490U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- stationary ring
- ring
- mechanical seal
- rotating ring
- 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 discloses a kind of gas-liquid two-phase fluid mechanical seal device, comprise the axle sleeve that is fixed on pump shaft and cooperatively interact for the rotating ring that seals and stationary ring; Described rotating ring is fixed on axle sleeve, and described stationary ring is fixedly connected with cyclic water jacket; Some little springs for compensating are provided with after described rotating ring; Described some little springs are along the distribution of axle sleeve even circumferential, and its one end contacts with rotating ring, and the other end and little spring seated connection touch; Be provided with the big spring for compensating after described stationary ring, described big spring is placed on axle sleeve, and its one end contacts with stationary ring, and the other end and big spring seated connection touch.
Description
Technical field
The utility model relates to a kind of mechanical seal device being applicable to gas-liquid two-phase fluid.
Background technique
Chemical Manufacture enterprise now, medium situation is complicated and changeable, and corrosivity is strong, penetrating odor weight, and temperature variation is large, and some media even exist the phenomenon that necessarily gasifies, and are also with toxic, and these situations are large to the injury of people, and the environmental pollution caused is also more serious.
The feed liquid transfer pump that domestic various places chemical enterprise uses is not owing to having suitable mechanical seal device, and pump main engine factory often select the mechanical seal of usual structure.The mechanical seal of General Construction reasonablely can play seal action under the theory state of feed liquid runs.But the situation of production is always complicated and changeable, and the change of temperature, pressure etc. all has an impact to medium state, particularly some boiling points are lower, the medium that saturation vapor pressure is also lower, easily produces change of state in production process, causes sealing medium to become a kind of state of gas-liquid mixed.General mechanical seal is being that liquid or solid-liquid admixture also can play good seal action completely, is directed to this operating mode being mixed with part gaseous medium and but always can not reaches ideal effect.Tracing it to its cause, is owing to having tiny inclination angle to cause between dynamic and static ring sealing surface.
Model utility content
For the technical problem of above-mentioned existence, the utility model provides a kind of gas-liquid two-phase fluid mechanical seal device, after dynamic and static ring, be provided with counterbalance spring, makes its sealing surface remain parallel.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of gas-liquid two-phase fluid mechanical seal device, comprises the axle sleeve that is fixed on pump shaft and cooperatively interacts for the rotating ring that seals and stationary ring; Described rotating ring is fixed on axle sleeve, and described stationary ring is fixedly connected with cyclic water jacket; Some little springs for compensating are provided with after described rotating ring; Described some little springs are along the distribution of axle sleeve even circumferential, and its one end contacts with rotating ring, and the other end and little spring seated connection touch; Be provided with the big spring for compensating after described stationary ring, described big spring is placed on axle sleeve, and its one end contacts with stationary ring, and the other end and big spring seated connection touch.
Improve as one, between described big spring and stationary ring, be provided with throw-out collar.The equilibrant force that big spring is provided is evenly distributed in stationary ring circumference more, avoids stationary ring to tilt.
Improve as one, described big spring base rear end is provided with oil sealing base, is provided with outside framework oil seal in oil sealing base; Described oil sealing base, cyclic water jacket, stationary ring, rotating ring and axle sleeve surround airtight cavity, described cyclic water jacket are provided with the adapter communicated with cavity.Flushing medium enters cavity inside by adapter, and dilution absorbs the leaking medium taken away in Seal cage, increases by a resealing guarantee.Avoid the medium of normal leakage to be detained in sealing configuration, heavy corrosion is caused to sealed member, affects sealing effect.
Improve as one, after described oil sealing base, be provided with limiting stopper.Prevent whole mechanical seal device axial float.
Usefulness of the present utility model is: two groups of springs contact with two seal rings respectively, allows two seal rings have compensate function simultaneously, extends compensation range, is of value to prolonged mechanical and seals service time.When mechanical seal run up or through operate after a while produce wearing and tearing after, the structure that two groups of springs contact with two seal rings respectively, more effectively can also compensate the axial error of mechanical seal in processing and assembly process, particularly mechanical seal runs up with seal ring end face after certain wearing and tearing, always ensure seal ring end face with rotating shaft absolute upright, maximize the normal service time of prolonged mechanical sealing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 2 adapters, 3 transmission rings, 5 limiting stoppers, 6 axle sleeves, 7 oil sealing bases, 8 big spring seats, 9 cyclic water jackets, 10 stationary rings, 12 rotating rings, 13 little springs, 14 submissile spring abutments, 18 throw-out collars, 19 big springs, 22 outside framework oil seals.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model comprises the axle sleeve 6 that is fixed on pump shaft and cooperatively interacts for the rotating ring 12 that seals and stationary ring 10; Axle sleeve 6 relies on transmission ring 3 transmission.Described rotating ring 12 is fixed on axle sleeve 6, and described stationary ring 10 is fixedly connected with cyclic water jacket 9; Some little springs 13 for compensating are provided with after described rotating ring 12; Described some little springs 13 are along the distribution of axle sleeve 6 even circumferential, and its one end contacts with rotating ring 12, and the other end contacts with submissile spring abutment 14; Be provided with the big spring 19 for compensating after described stationary ring 10, described big spring 19 is placed on axle sleeve 6, and its one end contacts with stationary ring 10, and the other end contacts with big spring seat 8.Throw-out collar 18 can be set between big spring 19 and stationary ring 10.Big spring seat 8 rear end is provided with oil sealing base 7, is provided with outside framework oil seal 22 in oil sealing base 7; Described oil sealing base 7, cyclic water jacket 9, stationary ring 10, rotating ring 12 and axle sleeve 6 surround airtight cavity, described cyclic water jacket 9 are provided with the adapter 2 communicated with cavity.Limiting stopper 5 is provided with after oil sealing base 7.
Rotating ring 12, stationary ring 10 keep sealing surface to fit tightly respectively under the effect of little spring 13 big spring 19.The sealing surface (rubbing surface) of two seal ring contacts processes through polishing, abrasive process, and the planeness of sealing surface reaches 0.00003mm, and sealed medium can not pass between two groups of seal faces.All directly contact with spring after two seal rings, its every part is made all axially to have certain space, in plant running process, the decrement of spring can change according to the motion conditions Automatic Fine Tuning of device, ensures that two end faces fit tightly and ensure vertical with rotating shaft all the time.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a gas-liquid two-phase fluid mechanical seal device, comprises the axle sleeve that is fixed on pump shaft and cooperatively interacts for the rotating ring that seals and stationary ring; Described rotating ring is fixed on axle sleeve, and described stationary ring is fixedly connected with cyclic water jacket; It is characterized in that: after described rotating ring, be provided with some little springs for compensating; Described some little springs are along the distribution of axle sleeve even circumferential, and its one end contacts with rotating ring, and the other end and little spring seated connection touch; Be provided with the big spring for compensating after described stationary ring, described big spring is placed on axle sleeve, and its one end contacts with stationary ring, and the other end and big spring seated connection touch.
2. a kind of gas-liquid two-phase fluid mechanical seal device according to claim 1, is characterized in that: be provided with throw-out collar between described big spring and stationary ring.
3. a kind of gas-liquid two-phase fluid mechanical seal device according to claim 1, is characterized in that: described big spring base rear end is provided with oil sealing base, is provided with outside framework oil seal in oil sealing base; Described oil sealing base, cyclic water jacket, stationary ring, rotating ring and axle sleeve surround airtight cavity, described cyclic water jacket are provided with the adapter communicated with cavity.
4. a kind of gas-liquid two-phase fluid mechanical seal device according to claim 3, is characterized in that: be provided with limiting stopper after described oil sealing base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297369.3U CN204677490U (en) | 2015-05-11 | 2015-05-11 | gas-liquid two-phase fluid mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297369.3U CN204677490U (en) | 2015-05-11 | 2015-05-11 | gas-liquid two-phase fluid mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677490U true CN204677490U (en) | 2015-09-30 |
Family
ID=54177186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520297369.3U Expired - Fee Related CN204677490U (en) | 2015-05-11 | 2015-05-11 | gas-liquid two-phase fluid mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340171A (en) * | 2018-11-23 | 2019-02-15 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
-
2015
- 2015-05-11 CN CN201520297369.3U patent/CN204677490U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340171A (en) * | 2018-11-23 | 2019-02-15 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |