CN201386690Y - Sealing device for vertical condensate pump - Google Patents
Sealing device for vertical condensate pump Download PDFInfo
- Publication number
- CN201386690Y CN201386690Y CN200920013013U CN200920013013U CN201386690Y CN 201386690 Y CN201386690 Y CN 201386690Y CN 200920013013 U CN200920013013 U CN 200920013013U CN 200920013013 U CN200920013013 U CN 200920013013U CN 201386690 Y CN201386690 Y CN 201386690Y
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- Prior art keywords
- ring
- base
- following
- stationary ring
- sealing device
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- Expired - Fee Related
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Abstract
A sealing device for a vertical condensate pump relates to an improved structure of the shaft end sealing device for a vertical condensate pump, which has good sealing effect. The sealing device comprises a base, and is structurally characterized in that the upper part and the lower part of the inner side of the base are respectively provided with an upper static ring and a lower static ring, the upper moving ring and the lower moving ring of a shaft sleeve are respectively in contact with the upper static ring and the lower static ring, a sealing cushion is respectively arranged between the upper static ring and the base and between the lower static ring and the base, and a sealing cushion is respectively arranged between the upper moving ring and the shaft sleeve and between the lower moving ring and the shaft sleeve.
Description
Technical field:
The utility model relates to the improvement of the shaft end seal device structure of vertical condensation water pump.
Background technique:
The shaft end seal of existing vertical condensation water pump mainly adopts packing seal or single mechanical end face seal.
1, packing seal is easily leaked, and increases the air horsepower loss.Need the frequent filler of changing, maintenance workload is big, and maintenance cost is higher.
2, because the condensate pump inlet pressure is lower than barometric pressure, and when the flash set water system was found time, shaft seal cavity became negative pressure state, external pressure is higher than the shaft seal cavity internal pressure; If the employing single mechanical end face seal easily causes dynamic and static ring to throw off, produce and leak.
3, packing seal and single mechanical end face seal in case vacuum leak occurs, will influence the whole pipeline running state in power station when pump is out of service, cause accidental shutdown, lose huge.
The model utility content:
The utility model is exactly at the problems referred to above, and a kind of seal arrangement of vertical condensation water pump of good sealing effect is provided.
For achieving the above object, the utility model adopts following technological scheme, the utility model comprises base, and the top of the inboard of its structure outline base, below are respectively arranged with stationary ring, following stationary ring, and outer last rotating ring, following the same respectively stationary ring of rotating ring, the following stationary ring of axle sleeve contacts; Be respectively arranged with sealing gasket between last stationary ring, following stationary ring and the base, be respectively arranged with sealing gasket between last rotating ring, following rotating ring and the axle sleeve.
The beneficial effects of the utility model:
1, the utility model is exactly that the shaft end seal that solves present condensate pump easily leaks and the problem that causes accidental shutdown, when realizing the startup, operation of pump and outage state, all can not occur leaking;
2, the utility model overhauls, changes fast, for the user provides convenience;
3, because the utility model has reduced the shutdown frequency that causes equipment failure because of the leakage of shaft end seal effectively, save the operating cost in thermal power plant in a large number, saved the maintenance of equipment, the time and the cost of maintenance.For example: when adopting packing seal, every operation just needed to change filler once in 1～2 month.Adopt single mechanical end face seal, because the generating peak in thermal power plant and the variation of low ebb operating conditions, in six months, condensate system once instantaneous finding time occur to I haven't seen you for ages, thereby causes shaft end seal to leak.When adopting the mechanical seal of Double End structure, as long as the cooling water of axle envelope can supply normally, pump failure-free operation more than 8000 hours continuously.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
The utility model comprises base 1, and the top of the inboard of base 1, below are respectively arranged with stationary ring 6, following stationary ring 2, and axle sleeve 10 outer last rotating ring 5, following the same respectively stationary ring 6 of rotating ring 3, following stationary rings 2 contact; Be respectively arranged with sealing gasket 9 between last stationary ring 6, following stationary ring 2 and the base 1, be respectively arranged with sealing gasket 9 between last rotating ring 5, following rotating ring 3 and the axle sleeve 10.
Following rotating ring 3, water of condensation was leaked when down stationary ring 2 was used to prevent the pump running, last rotating ring 5, when going up stationary ring 6 and being used to prevent that pump from stopping, and outside air enters pump housing inside.It is cooling chamber 4 that last rotating ring 5, last stationary ring 6, following rotating ring 3, following stationary ring 2 are combined to form a cavity.Gland 7 is provided with cooling water accessing port 11, cooling water outgoing interface 8, and in order not influence the hardness of water of condensing, cooling water can adopt water of condensation or demineralized water.
Claims (1)
1, the seal arrangement of vertical condensation water pump, comprise base (1), the top, the below that it is characterized in that the inboard of base (1) are respectively arranged with stationary ring (6), following stationary ring (2), and the same stationary ring (6), following stationary ring (2) contact outer last rotating ring (5), the following rotating ring (3) of axle sleeve (10) respectively; Be respectively arranged with sealing gasket (9) between last stationary ring (6), following stationary ring (2) and the base (1), be respectively arranged with sealing gasket (9) between last rotating ring (5), following rotating ring (3) and the axle sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013013U CN201386690Y (en) | 2009-04-16 | 2009-04-16 | Sealing device for vertical condensate pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920013013U CN201386690Y (en) | 2009-04-16 | 2009-04-16 | Sealing device for vertical condensate pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386690Y true CN201386690Y (en) | 2010-01-20 |
Family
ID=41579224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920013013U Expired - Fee Related CN201386690Y (en) | 2009-04-16 | 2009-04-16 | Sealing device for vertical condensate pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386690Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179300A (en) * | 2015-09-10 | 2015-12-23 | 临涣中利发电有限公司 | Condensate pump shaft seal device |
| CN106151098A (en) * | 2016-08-22 | 2016-11-23 | 嘉善川田环保科技有限公司 | A kind of from cooling shaft envelope, system and method |
-
2009
- 2009-04-16 CN CN200920013013U patent/CN201386690Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179300A (en) * | 2015-09-10 | 2015-12-23 | 临涣中利发电有限公司 | Condensate pump shaft seal device |
| CN106151098A (en) * | 2016-08-22 | 2016-11-23 | 嘉善川田环保科技有限公司 | A kind of from cooling shaft envelope, system and method |
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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: 20100120 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |