CN201496546U - Non-leakage combined type mechanical seal - Google Patents
Non-leakage combined type mechanical seal Download PDFInfo
- Publication number
- CN201496546U CN201496546U CN2009203083142U CN200920308314U CN201496546U CN 201496546 U CN201496546 U CN 201496546U CN 2009203083142 U CN2009203083142 U CN 2009203083142U CN 200920308314 U CN200920308314 U CN 200920308314U CN 201496546 U CN201496546 U CN 201496546U
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- CN
- China
- Prior art keywords
- seat
- ring
- static ring
- mechanical seal
- spring
- 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)
- Mechanical Sealing (AREA)
Abstract
The utility model discloses non-leakage combined type mechanical seal which comprises a static ring, a movable ring and a static ring seat, wherein the a pump shaft is sleeved with a shaft sleeve, the movable ring is sleeved on the shaft sleeve, and the static ring is installed on a back pump cover by the static ring seat. The non-leakage combined type mechanical seal is characterized in that: the shaft sleeve is sleeved with a spring seat, the spring seat is fixed on the back pump cover, and a pressure spring is arranged between the static ring seat and the spring seat. After abrasion is caused by friction between the movable ring and the static ring, the elasticity of the spring is used for adjusting and compensating, so that the sealing status between the movable ring and the static ring is always good, and the service life of mechanical seal is improved. The product is widely applied to an abrasion-resistant centrifugal pump for transporting high-corrosive liquid in the industrial production process of oil and chemistry, metallurgy, smelting, electric power, synthetic fiber, food and the like.
Description
Technical field
The utility model relates to a kind of mechanical seal, and especially a kind of nothing is leaked combined mechanical sealing.
Background technique
At present, both at home and abroad in industrial processes such as petrochemical industry, metallurgy, smelting, electric power, synthetic fiber, food in the anti-corrosive pump that generally uses, owing to contain solid particle in the corrosive liquids of carrying, the fluid temperature of Shu Songing reaches more than 100 ℃ sometimes simultaneously, seal arrangement to pump is had higher requirement, in case leakage phenomenon appears in pump, the strongly corrosion liquid of conveying can corrode the parts of pump on the one hand, greatly reduce the working life of pump, pump is scrapped in serious meeting; The strongly corrosion liquid of Guo Louing pollutes the environment on the other hand, even jeopardizes personal safety.Single mechanical end face seal is generally all adopted in the sealing of existing pump.This single mechanical end face seal is that rotating ring is installed on the pump shaft, and direct and stationary ring seals.But this seal arrangement is because it lacks good cooling and compensation device, and therefore, in the high speed rotating process of pump, the phase mutual friction between the dynamic and static ring very easily causes the wearing and tearing and the leakage of Sealing.
The model utility content
The utility model purpose is to provide a kind of nothing to leak combined mechanical sealing, adopt the mechanical seal of band compensation device, the phase mutual friction between dynamic and static ring is after occurring wearing and tearing, regulate compensation by spring, make to be in good sealing state between the dynamic and static ring all the time.
The technical solution of the utility model is achieved in that
A kind of nothing is leaked combined mechanical sealing, comprise stationary ring, rotating ring and stationary seat, on pump shaft, be set with axle sleeve, described moving ring sleeve is contained on the described axle sleeve, described stationary ring is installed on the rear pump cover by stationary seat, it is characterized in that: be set with spring seat on described axle sleeve, described spring seat is fixed on the described rear pump cover, is provided with stage clip between described stationary seat and spring seat.
The adjusting screw is arranged on the described spring seat.
The utility model compared with prior art has following advantage:
1. owing to adopt the band spring assembly, after wearing and tearing appear in phase mutual friction between the dynamic and static ring, regulate compensation, make to be in good sealing state between the dynamic and static ring all the time by the elasticity of spring.
2. the adjusting screw is being arranged on spring seat, moving axially, making spring remain good state, further improving the working life of mechanical seal by bolt Regulation spring seat.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1. rear pump cover 2. stationary rings 3. stage clips 4. axle sleeves 5. pump shafts 6. spring seats 7. stationary seats 8. rotating rings 9. are regulated screw
Embodiment
As can be seen from Figure 1, a kind of nothing is leaked combined mechanical sealing, comprise stationary ring 2, rotating ring 8 and stationary seat 7, on pump shaft 5, be set with axle sleeve 4, described rotating ring 8 is sleeved on the described axle sleeve 4, and described stationary ring 2 is installed on the rear pump cover 1 by stationary seat 7, it is characterized in that: be set with spring seat 6 on described axle sleeve 4, described spring seat 6 is fixed on the described rear pump cover 1, is provided with stage clip 3 between described stationary seat 7 and spring seat 6.
The screw 9 of adjusting is arranged on the described spring seat 6.
Claims (2)
1. one kind is not had the combined mechanical sealing of leakage, comprise stationary ring (2), rotating ring 8 and stationary seat (7), on pump shaft (5), be set with axle sleeve (4), described rotating ring (8) is sleeved on the described axle sleeve (4), described stationary ring (2) is installed on the rear pump cover (1) by stationary seat 7, it is characterized in that: be set with spring seat (6) on described axle sleeve (4), described spring seat (6) is fixed on the described rear pump cover (1), is provided with stage clip (3) between described stationary seat (7) and spring seat (6).
2. a kind of nothing according to claim 1 is leaked combined mechanical sealing, it is characterized in that: adjusting screw (9) is arranged on the described spring seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203083142U CN201496546U (en) | 2009-08-19 | 2009-08-19 | Non-leakage combined type mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203083142U CN201496546U (en) | 2009-08-19 | 2009-08-19 | Non-leakage combined type mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496546U true CN201496546U (en) | 2010-06-02 |
Family
ID=42439753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203083142U Expired - Fee Related CN201496546U (en) | 2009-08-19 | 2009-08-19 | Non-leakage combined type mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496546U (en) |
-
2009
- 2009-08-19 CN CN2009203083142U patent/CN201496546U/en not_active Expired - Fee Related
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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: 20100602 Termination date: 20120819 |