CN201461375U - Double-end-surface seal device for pump shafts - Google Patents
Double-end-surface seal device for pump shafts Download PDFInfo
- Publication number
- CN201461375U CN201461375U CN2009201041821U CN200920104182U CN201461375U CN 201461375 U CN201461375 U CN 201461375U CN 2009201041821 U CN2009201041821 U CN 2009201041821U CN 200920104182 U CN200920104182 U CN 200920104182U CN 201461375 U CN201461375 U CN 201461375U
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- ring
- rotating ring
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- seal ring
- seal
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Abstract
The utility model relates to a double-end-surface seal device for pump shafts, belonging to the technical field of pump components. The seal device comprises a shaft sleeve fitting with the main shaft of a water pump. The front end of the outer wall of the shaft sleeve is sheathed on a flange connected with the casing of the water pump. The rear wall of the flange is connected with a cooling sleeve. The utility model is characterized in that a first stationery seal ring, a first rotating seal ring, a second rotating seal ring and a second stationery seal ring are coaxially arranged in the cavity of the cooling sleeve in order; the front end of the first stationery seal ring fits with the rear wall of the flange, and a first seal pair is formed by fitting the rear end surface of the first stationery seal ring with the front end surface of the first rotating seal ring; a compensating spring is arranged between the rotating seal ring and the second rotating seal ring, and a second seal pair is formed by fitting the rear end surface of the second rotating seal ring with the front end surface of the second stationery seal ring; the rear end of the second stationery seal ring fits the wall of the cooling sleeve. The utility model adopting the double-end-surface seal structure has good seal properties. A balance type structure is designed in the first seal pair, and the structure can perform the seal function under the action of slurry pressure and external cooling water pressure. The reliability of the seal device is increased. The structure is suitable for high-temperature and high-pressure slag and slurry media.
Description
Technical field
The utility model relates to a kind of pump shaft sealing device, and particularly a kind of seal arrangement that is applicable to the slurry pump main shaft seal belongs to water pump component technology field.
Background technique
The main shaft seal parts of water pump are the critical components of water pump, its performance directly influences efficient, life-span and the user cost of water pump, the pump shaft sealing device of prior art is many to be guaranteed because the making precision of static and dynamic sealing ring and material influence by the cooperation between the dynamic and static seal ring that is installed in the axle sleeve outer wall, because it is a pair of that common static and dynamic sealing ring is designed to, its sealability is limited to.
The model utility content
The utility model technical issues that need to address provide the Double End pump shaft sealing device, by the architecture advances to the existing pump shaft sealer, strengthen the reliability of sealing pair, increase the service life.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
The Double End pump shaft sealing device, comprise the axle sleeve that cooperates with the water pump main shaft in its structure, the flange of axle sleeve outer wall front end sleeve load water pump housing, the flange rear wall connects coolant jacket, coaxial stationary ring one, rotating ring one, rotating ring two and the stationary ring two of setting gradually of coolant jacket inner chamber, stationary ring one front end cooperates with the flange rear wall, the ear end face of stationary ring one cooperates with the front-end face of rotating ring one, between rotating ring one and the rotating ring two counterbalance spring is set, the ear end face of rotating ring two cooperates with the front-end face of stationary ring two, and the rear end of stationary ring two cooperates with the cooling jacket wall.
Further improvement of the utility model is:
The fitting surface of flange and axle sleeve keeps the gap.
Keep the gap between stationary ring one inwall and the axle sleeve, stationary ring one outer wall cooperates with flange wall, and the fitting surface of the two is provided with seal ring.
Keep the gap between rotating ring one front inner wall and the axle sleeve, the rear end inwall cooperates with axle sleeve, and its fitting surface is provided with seal ring.
Rotating ring two inwalls cooperate with axle sleeve, and the two fitting surface is provided with seal ring.
Form the cooling crack between the outer wall of rotating ring one and rotating ring two and the coolant jacket inwall.
The front-end face of the ear end face of stationary ring one and rotating ring one is slidingly matched.
The ear end face of the front-end face of stationary ring two and rotating ring two is slidingly matched, and the rear end of stationary ring two cooperates with the cooling jacket wall, and the two fitting surface is provided with seal ring.
Between rotating ring one and the rotating ring two spacer sleeve is set, supports counterbalance spring in the spacer sleeve, the front end and back end of counterbalance spring compresses rotating ring one and rotating ring two respectively.
Offer the cooling water intake and the coolant outlet that are communicated with the cooling crack on the coolant jacket.
Owing to adopted technique scheme, the beneficial effect that the utility model produced is:
The utility model adopts the double seals structure, the sealing reliable durable, form the first road sealing pair between stationary ring one and the rotating ring one, form the second road sealing pair between stationary ring two and the rotating ring two, and in first road sealing sealing pair, adopt the balanced structure design, this kind structure can use slurries pressure and extraneous cooling water pressure plays seal action, has increased the reliability of seal arrangement, and this structure is applicable to High Temperature High Pressure slag slurry medium.
Description of drawings
Fig. 1 is the structural representation of Double End pump shaft sealing device.
Among the figure: 1, water pump cover, 2, flange, 3, coolant jacket, 31, cooling water intake, 32, the cooling crack, 33, coolant outlet, 5, stationary ring two, 6, rotating ring two, 7, rotating ring one, 8, stationary ring one, 9, axle sleeve, 10, counterbalance spring, 11, spacer sleeve.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Shown in Figure 1, structure of the present utility model comprises, the axle sleeve 9 that cooperates with the water pump main shaft, the flange 2 of axle sleeve 9 outer wall front end sleeve load water pump housings, flange 2 rear walls connect coolant jacket 3, coaxial stationary ring 1, rotating ring 1, rotating ring 26 and the stationary ring 25 of setting gradually of coolant jacket 3 inner chambers, stationary ring one 8 front ends cooperate with flange 2 rear walls, the ear end face of stationary ring 1 cooperates with the front-end face of rotating ring 1, between rotating ring 1 and the rotating ring 26 counterbalance spring 10 is set, the ear end face of rotating ring 26 cooperates with the front-end face of stationary ring 25, and the rear end of stationary ring 25 cooperates with the cooling jacket wall; Flange 2 keeps the gap with the fitting surface of axle sleeve 9; Keep the gap between stationary ring one 8 inwalls and the axle sleeve 9, stationary ring one outer wall cooperates with flange wall, and the fitting surface of the two is provided with seal ring; Keep the gap between rotating ring one 7 front inner wall and the axle sleeve 9, the rear end inwall cooperates with axle sleeve, and its fitting surface is provided with seal ring; Rotating ring 26 inwalls cooperate with axle sleeve, and the two fitting surface is provided with seal ring; Form cooling crack 32 between the outer wall of rotating ring 1 and rotating ring 27 and coolant jacket 3 inwalls; The front-end face of the ear end face of stationary ring 1 and rotating ring 1 is slidingly matched; The ear end face of the front-end face of stationary ring 25 and rotating ring 26 is slidingly matched, and the rear end of stationary ring 25 cooperates with the cooling jacket wall, and the two fitting surface is provided with seal ring; State between rotating ring 1 and the rotating ring 26 spacer sleeve 11 is set, support counterbalance spring 10 in the spacer sleeve 11, the front end and back end of counterbalance spring 10 compresses rotating ring 1 and rotating ring 26 respectively; Offer the cooling water intake 31 and the coolant outlet 33 that are communicated with cooling crack 32 on the coolant jacket 3.
The utility model adopts the double seals structure, form the first road sealing pair between stationary ring 1 and the rotating ring 1, form the second road sealing pair between stationary ring 25 and the rotating ring 26, in first road sealing sealing pair, adopt the balanced structure design, this kind structure can use slurries pressure and extraneous cooling water pressure plays balanced action, increased the sealing reliability of seal arrangement, this structure is applicable to High Temperature High Pressure slag slurry medium.
Claims (10)
1. Double End pump shaft sealing device, comprise the axle sleeve that cooperates with the water pump main shaft in its structure, the flange of axle sleeve outer wall front end sleeve load water pump housing, the flange rear wall connects coolant jacket, it is characterized in that: coaxial stationary ring one, rotating ring one, rotating ring two and the stationary ring two of setting gradually of coolant jacket inner chamber, stationary ring one front end cooperates with the flange rear wall, the ear end face of stationary ring one cooperates with the front-end face of rotating ring one, between rotating ring one and the rotating ring two counterbalance spring is set, the ear end face of rotating ring two cooperates with the front-end face of stationary ring two, and the rear end of stationary ring two cooperates with the cooling jacket wall.
2. Double End pump shaft sealing device according to claim 1 is characterized in that: the fitting surface of described flange and axle sleeve keeps the gap.
3. Double End pump shaft sealing device according to claim 1 is characterized in that: keep the gap between described stationary ring one inwall and the axle sleeve, stationary ring one outer wall cooperates with flange wall, and the fitting surface of the two is provided with seal ring.
4. Double End pump shaft sealing device according to claim 1 is characterized in that: keep the gap between described rotating ring one front inner wall and the axle sleeve, the rear end inwall cooperates with axle sleeve, and its fitting surface is provided with seal ring.
5. Double End pump shaft sealing device according to claim 1 is characterized in that: described rotating ring two inwalls cooperate with axle sleeve, and the two fitting surface is provided with seal ring.
6. Double End pump shaft sealing device according to claim 5 is characterized in that: form the cooling crack between the outer wall of described rotating ring one and rotating ring two and the coolant jacket inwall.
7. Double End pump shaft sealing device according to claim 5 is characterized in that: the front-end face of the ear end face of described stationary ring one and rotating ring one is slidingly matched.
8. Double End pump shaft sealing device according to claim 5 is characterized in that: the ear end face of the front-end face of described stationary ring two and rotating ring two is slidingly matched, and the rear end of stationary ring two cooperates with the cooling jacket wall, and the two fitting surface is provided with seal ring.
9. Double End pump shaft sealing device according to claim 8 is characterized in that: between described rotating ring one and the rotating ring two spacer sleeve is set, supports counterbalance spring in the spacer sleeve, the front end and back end of counterbalance spring compresses rotating ring one and rotating ring two respectively.
10. Double End pump shaft sealing device according to claim 9 is characterized in that: offer the cooling water intake and the coolant outlet that are communicated with the cooling crack on the described coolant jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201041821U CN201461375U (en) | 2009-08-21 | 2009-08-21 | Double-end-surface seal device for pump shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201041821U CN201461375U (en) | 2009-08-21 | 2009-08-21 | Double-end-surface seal device for pump shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461375U true CN201461375U (en) | 2010-05-12 |
Family
ID=42388729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201041821U Expired - Fee Related CN201461375U (en) | 2009-08-21 | 2009-08-21 | Double-end-surface seal device for pump shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461375U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200138A (en) * | 2011-07-11 | 2011-09-28 | 山东长志泵业有限公司 | Seal special for thick oil pump |
| CN103470527A (en) * | 2013-08-23 | 2013-12-25 | 芜湖市中天密封件有限公司 | Auto-boost mechanical seal for slurry pumps |
| CN104500391A (en) * | 2014-12-18 | 2015-04-08 | 浙江威隆机械科技有限公司 | Double-end-face integrated packaging washing mechanical seal of rotor pump |
| WO2016058454A1 (en) * | 2014-10-17 | 2016-04-21 | 邢宇 | Coolant or heating liquid circulation system of cantilever-type centrifugal pump |
| CN111692123A (en) * | 2020-05-09 | 2020-09-22 | 青海盐湖工业股份有限公司 | Double-end-face mechanical sealing device for pump |
-
2009
- 2009-08-21 CN CN2009201041821U patent/CN201461375U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200138A (en) * | 2011-07-11 | 2011-09-28 | 山东长志泵业有限公司 | Seal special for thick oil pump |
| CN103470527A (en) * | 2013-08-23 | 2013-12-25 | 芜湖市中天密封件有限公司 | Auto-boost mechanical seal for slurry pumps |
| WO2016058454A1 (en) * | 2014-10-17 | 2016-04-21 | 邢宇 | Coolant or heating liquid circulation system of cantilever-type centrifugal pump |
| US10247200B2 (en) | 2014-10-17 | 2019-04-02 | Tianjin Crdt Fluid Control System Ltd. | Cooling or heating fluid circulation system of a cantilevered centrifugal pump |
| CN104500391A (en) * | 2014-12-18 | 2015-04-08 | 浙江威隆机械科技有限公司 | Double-end-face integrated packaging washing mechanical seal of rotor pump |
| CN111692123A (en) * | 2020-05-09 | 2020-09-22 | 青海盐湖工业股份有限公司 | Double-end-face mechanical sealing device for pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20170821 |