CN204127321U - A kind of mechanical seal device - Google Patents
A kind of mechanical seal device Download PDFInfo
- Publication number
- CN204127321U CN204127321U CN201420544024.9U CN201420544024U CN204127321U CN 204127321 U CN204127321 U CN 204127321U CN 201420544024 U CN201420544024 U CN 201420544024U CN 204127321 U CN204127321 U CN 204127321U
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- CN
- China
- Prior art keywords
- ring
- stationary ring
- seal
- mechanical seal
- throw
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of mechanical seal device, comprise rotating ring, stationary ring, seal end plate, described rotating ring is pressed on stationary ring by throw-out collar, throw-out collar is positioned at the groove set by spring pedestal, multiple little spring is provided with between throw-out collar and bottom land, described stationary ring is positioned at the groove set by seal end plate, the upper-end surface of stationary ring is step surface, lower end surface contacts with rotating ring, and be provided with deep trouth with the surface of contact of rotating ring, the material of stationary ring is silicon carbide, throw-out collar is promoted by little spring, when operator install mechanical seal, do not need the rotation direction problem considering screw rod and little spring, stationary ring uses carbofrax material, and stationary ring with the surface of contact of rotating ring on be provided with deep trouth, make between stationary ring and rotating ring, to there is medium lubrication, stationary ring is not easy to wear, ensure that the sealability of mechanical seal.The thermal conductivity that stationary ring is good and the excellent tightness of seal ring and resistance to high temperature, make mechanical seal can work when 100% gas, and can not damage because of dry combustion method, ensure that the working life of mechanical seal.
Description
Technical field
The utility model relates to the sealing of the pump housing, is specifically related to a kind of mechanical seal device.
Background technique
Mechanical seal refers to and under the effect of hydrodynamic pressure and compensation mechanism elastic force (or magnetic force) and under the cooperation of auxiliary seal, keeps laminating by least one pair of end face perpendicular to spin axis and relative sliding and device that the anti-fluid that forms is leaked.Mechanical seal is a kind of gland seal device of rotating machinery.The equipment such as such as centrifugal pump, centrifuge, reactor and compressor.Because transmission shaft is applied in inside and outside equipment, like this, there is a circumferential clearance between axle and equipment, medium in equipment passes through this gap to outward leakage, if equipment internal pressure is lower than barometric pressure, then air is revealed in equipment, and one therefore must be had to stop the gland seal device revealed.The kind of shaft seal is a lot, the advantage such as to grow, so mechanical seal is in the topmost shaft sealing mode of these equipment in the world today because mechanical seal has leakage rate few and life-span.But current big spring that mechanical seal uses, needs during installation to consider rotation direction problem, easily anti-loaded.And the material of rotating ring and stationary ring is all graphite, although there is selflubricating, after Long-Time Service, wearing and tearing can cause leaking.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of mechanical seal device, can convenient operation personnel install, and good airproof performance.
The utility model is achieved through the following technical solutions:
A kind of mechanical seal device, comprise rotating ring, stationary ring, seal end plate, described rotating ring is pressed on stationary ring by throw-out collar, throw-out collar is positioned at the groove set by spring pedestal, is provided with multiple little spring between throw-out collar and bottom land, and described stationary ring is positioned at the groove set by seal end plate, the upper-end surface of stationary ring is step surface, lower end surface contacts with rotating ring, and is provided with deep trouth with the surface of contact of rotating ring, and the material of stationary ring is silicon carbide.
The further improvement project of the utility model is, described stationary ring is provided with static sealing ring away between the First terrace of screw rod and seal end plate, leaves space near between the second step face and seal end plate of screw rod.
The utility model further improvement project is, described rotating ring and throw-out collar surface of contact is provided with groove near screw rod place, is provided with dynamic seal ring in groove.
The utility model further improvement project is, the material of described rotating ring is graphite.
The utility model further improvement project is, described dynamic seal ring and static sealing ring are viton seal ring.
The utility model further improvement project is, the material of described spring pedestal, little spring, pressure ring and seal end plate is 304 stainless steels.
Compared with prior art, tool has the following advantages the utility model:
The utility model structure is simple, throw-out collar is promoted by little spring, when operator install mechanical seal, do not need the rotation direction problem considering screw rod and little spring, stationary ring uses carbofrax material, and stable chemical performance, thermal conductivity are high, thermal expansion coefficient is little, wear-resisting property is good, and stationary ring with the surface of contact of rotating ring on be provided with deep trouth, make to there is medium lubrication between stationary ring and rotating ring, stationary ring is not easy to wear, ensure that the sealability of mechanical seal.The thermal conductivity that stationary ring is good and the excellent tightness of dynamic and static seal ring and resistance to high temperature, make mechanical seal can work when 100% gas, and can not damage because of dry combustion method, ensure that the working life of mechanical seal.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model comprises rotating ring 5, stationary ring 6, seal end plate 8, described rotating ring 5 is pressed on stationary ring 6 by throw-out collar 3, throw-out collar 3 is positioned at the groove set by spring pedestal 1, multiple little spring 2 is provided with between throw-out collar 3 and bottom land, described stationary ring 6 is positioned at the groove set by seal end plate 8, the upper-end surface of stationary ring 6 is step surface, lower end surface contacts with rotating ring 5, and be provided with deep trouth 9 with the surface of contact of rotating ring 5, the material of stationary ring 6 is silicon carbide, described stationary ring 6 is provided with static sealing ring 7 away between the First terrace of screw rod and seal end plate 8, space is left near between the second step face and seal end plate 8 of screw rod, described rotating ring 5 and throw-out collar 3 surface of contact are provided with groove near screw rod place, dynamic seal ring 4 is provided with in groove, the material of described rotating ring 5 is graphite, described dynamic seal ring 4 is viton seal ring with static sealing ring 7, described spring pedestal 1, little spring 2, pressure ring 3 is 304 stainless steels with the material of seal end plate 8.
During use, throw-out collar 3 is promoted by little spring 2, when operator install mechanical seal, do not need the rotation direction problem considering screw rod and little spring 2, stationary ring 6 uses carbofrax material, silicon carbide stable chemical performance, thermal conductivity is high, thermal expansion coefficient is little, wear-resisting property is good, and stationary ring 6 with the surface of contact of rotating ring 5 on be provided with deep trouth 9, make between stationary ring 6 and rotating ring 5, to there is medium to lubricate, the material of rotating ring 5 is graphite, graphite has resistant to elevated temperatures character and self lubricity, dynamic seal ring 4 and static sealing ring 7 are viton seal ring, viton seal ring has excellent tightness, high temperature resistant, resistance to oxidation, resistance to mineral oil, fuel oil resistance, the performance of hydraulic pressure resistant oil is famous, and can use in high vacuum conditions.The thermal conductivity that stationary ring 6 is good and dynamic seal ring 4 tightness excellent with static sealing ring 7 and resistance to high temperature, make mechanical seal can work when 100% gas, and can not damage because of dry combustion method.
Claims (6)
1. a mechanical seal device, comprise rotating ring (5), stationary ring (6), seal end plate (8), it is characterized in that: described rotating ring (5) is pressed on stationary ring (6) by throw-out collar (3), throw-out collar (3) is positioned at the groove set by spring pedestal (1), multiple little spring (2) is provided with between throw-out collar (3) and bottom land, described stationary ring (6) is positioned at the groove set by seal end plate (8), the upper-end surface of stationary ring (6) is step surface, lower end surface contacts with rotating ring (5), and be provided with deep trouth (9) with the surface of contact of rotating ring (5), the material of stationary ring (6) is silicon carbide.
2. a kind of mechanical seal device according to claim 1, it is characterized in that: described stationary ring (6) is provided with static sealing ring (7) away between the First terrace of screw rod and seal end plate (8), leave space near between the second step face and seal end plate (8) of screw rod.
3. a kind of mechanical seal device according to claim 2, is characterized in that: described rotating ring (5) and throw-out collar (3) surface of contact are provided with groove near screw rod place, are provided with dynamic seal ring (4) in groove.
4. a kind of mechanical seal device according to claim 1, is characterized in that: the material of described rotating ring (5) is graphite.
5. a kind of mechanical seal device according to claim 3, is characterized in that: described dynamic seal ring (4) and static sealing ring (7) are viton seal ring.
6. a kind of mechanical seal device according to claim 1, is characterized in that: described spring pedestal (1), little spring (2), pressure ring (3) are 304 stainless steels with the material of seal end plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544024.9U CN204127321U (en) | 2014-09-22 | 2014-09-22 | A kind of mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544024.9U CN204127321U (en) | 2014-09-22 | 2014-09-22 | A kind of mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127321U true CN204127321U (en) | 2015-01-28 |
Family
ID=52383679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420544024.9U Expired - Fee Related CN204127321U (en) | 2014-09-22 | 2014-09-22 | A kind of mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127321U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131451A (en) * | 2018-02-09 | 2018-06-08 | 安徽中烟再造烟叶科技有限责任公司 | Yankee cylinder steam swivel joint end ring mechanism |
| CN109882593A (en) * | 2019-03-25 | 2019-06-14 | 江苏丰尚智能科技有限公司 | A kind of adjustable pressure double-sided compression sealing device |
| CN112303238A (en) * | 2019-07-24 | 2021-02-02 | 江苏鸿胜泵业科技有限公司 | Mechanical sealing device |
| CN114087366A (en) * | 2022-01-19 | 2022-02-25 | 启东市乘龙密封有限公司 | General mechanical seal capable of dry grinding, bonding prevention, strong corrosion resistance and high temperature resistance |
-
2014
- 2014-09-22 CN CN201420544024.9U patent/CN204127321U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131451A (en) * | 2018-02-09 | 2018-06-08 | 安徽中烟再造烟叶科技有限责任公司 | Yankee cylinder steam swivel joint end ring mechanism |
| CN109882593A (en) * | 2019-03-25 | 2019-06-14 | 江苏丰尚智能科技有限公司 | A kind of adjustable pressure double-sided compression sealing device |
| CN112303238A (en) * | 2019-07-24 | 2021-02-02 | 江苏鸿胜泵业科技有限公司 | Mechanical sealing device |
| CN114087366A (en) * | 2022-01-19 | 2022-02-25 | 启东市乘龙密封有限公司 | General mechanical seal capable of dry grinding, bonding prevention, strong corrosion resistance and high temperature resistance |
| CN114087366B (en) * | 2022-01-19 | 2022-05-10 | 启东市乘龙密封有限公司 | General mechanical seal capable of dry grinding, bonding prevention, strong corrosion resistance and high temperature resistance |
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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: 20150128 Termination date: 20170922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |