CN202418574U - Mechanical seal structure for reaction kettle - Google Patents
Mechanical seal structure for reaction kettle Download PDFInfo
- Publication number
- CN202418574U CN202418574U CN2012200147322U CN201220014732U CN202418574U CN 202418574 U CN202418574 U CN 202418574U CN 2012200147322 U CN2012200147322 U CN 2012200147322U CN 201220014732 U CN201220014732 U CN 201220014732U CN 202418574 U CN202418574 U CN 202418574U
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- ring
- stationary ring
- following
- seat
- stationary
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Abstract
The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal structure for a reaction kettle. The mechanical seal structure comprises a shaft sleeve, a bearing, an inner cylinder, an upper stationary ring seat, an upper stationary ring, an upper rotating ring, a spring seat, a lower stationary ring seat, a lower rotating ring and a lower stationary ring, wherein the upper friction ring surface of the upper rotating ring is matched with the lower friction ring surface of the upper stationary ring; the lower friction ring surface of the lower rotating ring is matched with the upper friction ring surface of the lower stationary ring; and a plurality of hydrodynamic grooves are uniformly formed at the periphery of the upper friction ring surface of the upper rotating ring and at the periphery of the upper friction ring surface of the lower stationary ring. An isolated fluid in a seal cavity can be wedged between the friction ring surfaces through the hydrodynamic grooves to form a stable liquid film, so that wear between the ring surfaces is reduced, and the leakage of the isolated fluid is stable and is kept in an ideal design range; and therefore, the sealing reliability is obviously improved, and the service life is greatly prolonged.
Description
Technical field
The utility model relates to the mechanical sealing technology field, and particularly a kind of reaction kettle is used mechanical seal structure.
Background technique
Reaction kettle is one of manufacturing mechanism main in the chemical industry, in process of production, need stir various chemical substances in the reaction kettle, so that reaction is carried out more fully.And all kinds of chemical substances often are accompanied by chemistry and physical reactions generation in the reaction kettle, can present high temperature, high pressure, phenomenons such as severe toxicity and deep-etching.For effectively avoiding various dangerous substances to leak, it is most important that the shaft sealing of reaction kettle just seems.
Previously, people mainly adopt the shaft sealing of soft packing seal as reaction kettle, because its structural defective is leaked inevitable.Continuous development along with sealing technique; The main at present unit loading type double mechanical seal that adopts, mainly by transmission device, axle sleeve; Bearing; Be fixed in the spring seat on the axle sleeve, the floating last rotating ring and following rotating ring that is loaded on the spring seat, last stationary ring that cooperates with last rotating ring end face and the following stationary ring that cooperates with following rotating ring end face are formed.The last rotating ring of existing machinery sealing configuration all adopts softer metals to be made with following stationary ring; Its wear resistance is relatively poor, after the long-time friction fit, and serious wear; Its sealability and working life are affected, so be necessary existing technology is carried out structure of modification.
The model utility content
The purpose of the utility model is defective and the deficiency to existing technology, provides a kind of a kind of reaction kettle simple and compact for structure, good sealing effect to use mechanical seal structure.
For realizing above-mentioned purpose, the utility model adopts following technological scheme:
The described a kind of reaction kettle of the utility model is used mechanical seal structure, comprises axle sleeve, and periphery, said axle sleeve top is provided with bearing; Periphery, axle sleeve bottom is provided with down the stationary ring seat, and following stationary ring seat is provided with down stationary ring, and said bearing is provided with outer cylinder body outward; The outer cylinder body bottom is fixed on the following stationary ring seat; Said bearing bottom is provided with the stationary ring seat, and last stationary ring seat is provided with stationary ring, and periphery, said axle sleeve middle part is provided with spring seat; Said spring seat both sides are respectively equipped with rotating ring and following rotating ring; The said friction anchor ring of going up of going up rotating ring cooperates with the following friction anchor ring of last stationary ring, and the following friction anchor ring of said rotating ring down cooperates with the friction anchor ring of going up of following stationary ring, and said going up between stationary ring seat and the following stationary ring seat is connected with inner barrel; Said inner barrel, outer cylinder body, last stationary ring seat, following stationary ring seat surrounds cooling chamber; Said inner barrel, last stationary ring seat, last stationary ring; Last rotating ring, spring seat, following stationary ring seat; Following rotating ring and following stationary ring surround Seal cage, and the said friction anchor ring periphery of going up of going up rotating ring evenly is provided with some fluid dynamic grooves, and the upward friction anchor ring periphery of said stationary ring down evenly is provided with some fluid dynamic grooves.
Further, the said width of going up the width of the friction anchor ring of rotating ring less than the following friction anchor ring of last stationary ring.
Further, the width of going up the friction anchor ring of said stationary ring down is less than the width of the following friction anchor ring of following rotating ring.
Further, said upward rotating ring is the soft metal ring.
Further, said stationary ring down is the soft metal ring.
After adopting said structure, the utility model beneficial effect is: the said friction anchor ring periphery of going up of going up rotating ring of the utility model evenly is provided with some fluid dynamic grooves, and the friction anchor ring periphery of going up of said stationary ring down evenly is provided with some fluid dynamic grooves.Buffer fluid in the Seal cage can be gone up between the following friction anchor ring of friction anchor ring and last stationary ring of rotating ring and down between the following friction anchor ring of going up rub anchor ring and following rotating ring of stationary ring through the fluid dynamic groove wedging; Form stable liquid film; The wearing and tearing between the anchor ring have promptly been reduced; Make the leakage rate of buffer fluid stable and remain on the ideal designs scope again, make the sealing reliability of the utility model obtain to significantly improve, and prolonged working life significantly.
Description of drawings
Fig. 1 is the utility model sectional structure schematic representation.
Among the figure:
1, retainer assembly; 2, axle sleeve; 3, bearing; 4, outer cylinder body;
5, following stationary ring seat; 6, go up rotating ring; 7, go up stationary ring; 8, spring seat
9, following rotating ring; 10, following stationary ring; 11, go up the stationary ring seat; 12, inner barrel
13, Seal cage; 14, cooling chamber.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the described a kind of reaction kettle of the utility model is used mechanical seal structure, comprises axle sleeve 2, and said axle sleeve 2 top outer race are provided with bearing 3, and axle sleeve 2 bottom outer race are provided with down stationary ring seat 5, are fixed with down stationary ring 10 on the following stationary ring seat 5.Said bearing 3 is connected with axle sleeve 2, together rotation.Said stationary ring seat 5 down is clearance type with 2 on axle sleeve and cooperates, axle sleeve 2 rotations, and following stationary ring seat 5 transfixions.Said retainer assembly 1 is mainly used in driving sleeve 2, and axle sleeve 2 is rotated.Be equipped with outer cylinder body 4 outside the said bearing 3, outer cylinder body 4 bottoms are assemblied in down on the stationary ring seat 5, and said bearing 3 bottoms are provided with stationary ring seat 11, and the said stationary ring seat 11 of going up also becomes Spielpassung setting with axle sleeve 2.Be fixed with stationary ring 7 on the last stationary ring seat 11.
Periphery, said axle sleeve 2 middle part is provided with spring seat 8; Float respectively and be provided with rotating ring 6 and following rotating ring 9 in the both sides of said spring seat 8; The said friction anchor ring of going up of going up rotating ring 6 cooperates with the following friction anchor ring of last stationary ring 7, and the following friction anchor ring of said rotating ring 9 down cooperates with the friction anchor ring of going up of following stationary ring 10.Assembling is connected with inner barrel 12 between said upward stationary ring seat 11 and the following stationary ring seat 5.
Said inner barrel 12, outer cylinder body 4, last stationary ring seat 11, following stationary ring seat 5 surrounds cooling chamber 14; Said inner barrel 12, last stationary ring seat 11, last stationary ring 7, last rotating ring 6; Spring seat 8, following stationary ring seat 5, following rotating ring 9 and following stationary ring 10 surround Seal cage 13.
Main inventive point as the utility model; The said friction anchor ring periphery of going up of going up rotating ring 6 evenly is provided with some fluid dynamic grooves; The friction anchor ring periphery of going up of said down stationary ring 10 evenly is provided with some fluid dynamic grooves, be provided with like this, on last rotating ring 6 friction anchor ring and the following friction anchor ring of last stationary ring 7 and down stationary ring 10 on when rubbing the following friction anchor ring rubbing contact of anchor ring and following rotating ring 9; Fluid partitioning in the Seal cage 13 will through the fluid dynamic groove wedging go up rotating ring 6 go up friction anchor ring and the following friction anchor ring of last stationary ring 7 and down between the following friction anchor ring of going up rub anchor ring and following rotating ring 9 of stationary ring 10; Form stable liquid film, because of the said rotating ring 6 of going up is soft metal ring, above-mentioned setting with following stationary ring 10; The wearing and tearing of last rotating ring 6 and following stationary ring 10 have promptly been reduced; Make the leakage rate of buffer fluid stable and remain on the ideal designs scope again, sealability is greatly improved, and prolongs greatly working life simultaneously.
In addition; The said width of going up the width of the friction anchor ring of rotating ring 6 less than the following friction anchor ring of last stationary ring 7; Be provided with like this; The metallic dust that friction the time is produced between the friction anchor ring will be lowered into the buffer fluid bottom in action of gravity, can the engaging friction anchor ring between and influence sealing effect.The width of going up the friction anchor ring of said stationary ring 10 down is less than the width of the following friction anchor ring of following rotating ring 9, and reason and effect are identical, no longer repeat specification.
The above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (5)
1. a reaction kettle is used mechanical seal structure; Comprise axle sleeve (2), said axle sleeve (2) periphery, top is provided with bearing (3), and axle sleeve (2) periphery, bottom is provided with down stationary ring seat (5); Following stationary ring seat (5) is provided with down stationary ring (10); The outer outer cylinder body (4) that is provided with of said bearing (3), on the stationary ring seat (5), said bearing (3) bottom was provided with stationary ring seat (11) under outer cylinder body (4) bottom was fixed in; Last stationary ring seat (11) is provided with stationary ring (7); Periphery, said axle sleeve (2) middle part is provided with spring seat (8), and said spring seat (8) both sides are respectively equipped with rotating ring (6) and following rotating ring (9), and the said friction anchor ring of going up of going up rotating ring (6) cooperates with the following friction anchor ring of last stationary ring (7); The following friction anchor ring of said rotating ring (9) down cooperates with the friction anchor ring of going up of following stationary ring (10), and said going up between stationary ring seat (11) and the following stationary ring seat (5) is connected with inner barrel (12); Said inner barrel (12), outer cylinder body (4), last stationary ring seat (11); Following stationary ring seat (5) surrounds cooling chamber (14), said inner barrel (12), last stationary ring seat (11); Last stationary ring (7), last rotating ring (6), spring seat (8); Following stationary ring seat (5); Following rotating ring (9) and following stationary ring (10) surround Seal cage (13), it is characterized in that: the said friction anchor ring periphery of going up of going up rotating ring (6) evenly is provided with some fluid dynamic grooves, and the upward friction anchor ring periphery of said stationary ring (10) down evenly is provided with some fluid dynamic grooves.
2. reaction kettle according to claim 1 is used mechanical seal structure, it is characterized in that: the said width of going up the width of the friction anchor ring of rotating ring (6) less than the following friction anchor ring of last stationary ring (7).
3. reaction kettle according to claim 1 is used mechanical seal structure, it is characterized in that: the width of going up the friction anchor ring of said stationary ring (10) down is less than the width of the following friction anchor ring of following rotating ring (9).
4. reaction kettle according to claim 2 is used mechanical seal structure, it is characterized in that: said upward rotating ring (6) is the soft metal ring.
5. reaction kettle according to claim 3 is used mechanical seal structure, it is characterized in that: said stationary ring (10) down is the soft metal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200147322U CN202418574U (en) | 2012-01-13 | 2012-01-13 | Mechanical seal structure for reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200147322U CN202418574U (en) | 2012-01-13 | 2012-01-13 | Mechanical seal structure for reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418574U true CN202418574U (en) | 2012-09-05 |
Family
ID=46743344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200147322U Expired - Fee Related CN202418574U (en) | 2012-01-13 | 2012-01-13 | Mechanical seal structure for reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418574U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994226A (en) * | 2013-08-19 | 2014-08-20 | 天津市富鑫达密封有限公司 | Multi-purpose type packaging double-end-face sealing device for agitated vessel top |
| CN104696520B (en) * | 2013-12-04 | 2017-01-18 | 丹东波纹管密封有限公司 | Follow-up double mechanical seal for kettle |
| CN110360147A (en) * | 2019-07-22 | 2019-10-22 | 中国原子能科学研究院 | Mechanically-sealing apparatus for major cycle sodium pump |
-
2012
- 2012-01-13 CN CN2012200147322U patent/CN202418574U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994226A (en) * | 2013-08-19 | 2014-08-20 | 天津市富鑫达密封有限公司 | Multi-purpose type packaging double-end-face sealing device for agitated vessel top |
| CN103994226B (en) * | 2013-08-19 | 2015-04-01 | 天津市富鑫达密封有限公司 | Multi-purpose type packaging double-end-face sealing device for agitated vessel top |
| CN104696520B (en) * | 2013-12-04 | 2017-01-18 | 丹东波纹管密封有限公司 | Follow-up double mechanical seal for kettle |
| CN110360147A (en) * | 2019-07-22 | 2019-10-22 | 中国原子能科学研究院 | Mechanically-sealing apparatus for major cycle sodium 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: 20120905 Termination date: 20180113 |