CN201944274U - Sealing device for agitated reactor - Google Patents
Sealing device for agitated reactor Download PDFInfo
- Publication number
- CN201944274U CN201944274U CN2011200208637U CN201120020863U CN201944274U CN 201944274 U CN201944274 U CN 201944274U CN 2011200208637 U CN2011200208637 U CN 2011200208637U CN 201120020863 U CN201120020863 U CN 201120020863U CN 201944274 U CN201944274 U CN 201944274U
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- Prior art keywords
- ring
- sealing
- seal
- flange
- stirring shaft
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- Expired - Lifetime
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Abstract
The utility model discloses a sealing device for an agitated reactor, a first flange, a second sealing cylinder, a first sealing cylinder and a second flange are fixedly connected from top down in a sealing mode sequentially and sleeved on the outside of an agitating shaft, a first stationary ring, a second stationary ring and a third stationary ring are fixedly arranged on the lower end of the first flange, the upper end of the second flange and the lower end of the second sealing cylinder in a sealing mode respectively, and a first moving ring, a second moving ring, and a third moving ring are fixedly sleeved on the outside of the agitating shaft in a sealing mode respectively and sealing contacted with the third stationary ring, the second stationary ring and the first stationary ring respectively. A first sealing cavity is formed between the first sealing cylinder, the second cylinder, the second flange, the agitating shaft, the first moving ring, the second stationary ring and the third stationary ring, a second sealing cavity is formed between the first flange, the second sealing cylinder, the first stationary ring, the first moving ring, the third moving ring and the third stationary ring, and the pressure inside the second sealing cavity is lower than that inside the first sealing cavity. The sealing device for the agitated reactor greatly reduces pressure difference on a connecting end surface of the first sealing cavity and effectively avoids leakage and burst of the first sealing cavity, so as to guarantee operation safety of the agitated reactor.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly a kind of reactor seal arrangement of high-voltage high-speed.
Background technique
At present, the reactor of high-voltage high-speed all is a Seal cage with seal arrangement, during reactor work, owing to producing high pressure in the Seal cage, form high-intensity pressure difference for the connection end face of Seal cage, make Seal cage have the potential risk of leakage even explosion, and all be toxic substance in the general reactor, in case Seal cage is revealed, will cause serious pollution to the external world, seriously jeopardize the extraneous environment and staff's the person.
The model utility content
In order to remedy above deficiency, the utility model provides a kind of reactor seal arrangement, and this reactor can effectively reduce the pressure difference that the connection end face of seal chamber bears with seal arrangement, guarantees the sealing and the Security of seal chamber.
The utility model for the technological scheme that solves its technical problem and adopt is: a kind of reactor seal arrangement, comprise stirring shaft, first, two flanges, first sealed cylinder, first, two stationary rings and first, two rotating rings, to use direction to be benchmark, first flange, first sealed cylinder and second flange are sheathed on the stirring shaft outside from top to bottom successively, the first sealed cylinder lower end and the sealing of second flange upper end are connected, first, two stationary rings seal respectively and are fixedly arranged on inboard and inboard, second flange upper end, the first flange lower end, be positioned at first of the first sealed cylinder inboard, two rotating rings sealing and fixing respectively are sheathed on the stirring shaft outside, the second rotating ring lower end contacts with the sealing of the second stationary ring upper-end surface, also be provided with second sealed cylinder, the 3rd rotating ring and the 3rd stationary ring, second sealed cylinder is sheathed on the stirring shaft outside, second sealed cylinder is between first sealed cylinder and first flange, and be connected with first sealed cylinder and first flange seal respectively, the sealing of the 3rd stationary ring is fixedly arranged on inboard, the second sealed cylinder lower end, the 3rd rotating ring sealing and fixing that is positioned at second sealed cylinder is sheathed on the stirring shaft outside, first rotating ring upper end contacts with the sealing of the 3rd stationary ring lower end, the 3rd rotating ring upper end contacts with the sealing of the first stationary ring lower end, first, two sealed cylinders, second flange, stirring shaft, first, two rotating rings and second, form one first Seal cage between three stationary rings, first flange, second sealed cylinder, first stationary ring, first, form one second Seal cage between three rotating rings and the 3rd stationary ring, the described second Seal cage internal pressure is less than the first Seal cage internal pressure, during actual the use, the first Seal cage internal pressure gives first, the connection end face of two sealed cylinders forms the pressure towards the second Seal cage direction, the second Seal cage internal pressure gives first, the connection end face of two sealed cylinders forms the pressure towards the first Seal cage direction, cancel out each other after two bursts of pressure reversal effects, with first, the pressure that the connection end face of two sealed cylinders bears effectively reduces, prevent that effectively first Seal cage from bearing the excessive explosion of pressure because of end face, effectively prevent simultaneously first Seal cage from leaking and cause to external world pollution (even first Seal cage leaks, material will be discharged in second Seal cage in first Seal cage, can directly not be discharged to the external world, also just prevented pollution to external world), make the reactor work safety further be protected like this.
As further improvement of the utility model, the second Seal cage internal pressure is half of the first Seal cage internal pressure, the pressure difference between the connection end face of first and second sealed cylinder can be reduced to minimum like this, fully guarantees the sealing and the Security of first Seal cage.
As further improvement of the utility model, described first, two rotating rings sealing and fixing respectively are sheathed on the structure that the stirring shaft outside and the 3rd rotating ring sealing and fixing be sheathed on the stirring shaft outside and are: first, two, form a loop gap between three rotating rings and the stirring shaft respectively, be respectively equipped with a seal ring in the described annular gap, the inboard elasticity of seal ring presses closer stirring shaft, outside elasticity respectively presses closer first, two, three rotating rings, described first, two, also be respectively equipped with a ring-type back-up ring between three rotating rings and the seal ring axial clearance, in use, the stirring shaft high speed rotating, because first, has high pressure in two Seal cages, seal ring can produce towards first, two, the trend (promptly axially jumping) of depths, gap motion between three rotating rings and stirring shaft, the ring-type back-up ring plays backstop action to seal ring, prevent that seal ring from entering first, two, depths, gap between three rotating rings and stirring shaft and resiliently deformable takes place, also just prevent that seal ring from because of the situation that resiliently deformable lost efficacy takes place, fully having guaranteed first, the sealing of two Seal cages.
As further improvement of the utility model, described ring-type back-up ring is an inner concave arc surface towards seal ring one side, and proper and this inner concave arc surface applying of seal ring prevents that further it from axially jumping.
As further improvement of the utility model, first and second rotating ring neutral position that stirring shaft is positioned at first Seal cage also detachably is arranged with a bearing, bearing on this bearing and first flange forms two fulcrums and plays a supporting role, stirring shaft can produce axial runout in the high speed rotating process, in the middle of first and second rotating ring of first Seal cage, establish bearing, the axial-shift minimum that makes first and second rotating ring generation like this, guarantee the parallelism height between itself and the 3rd, two stationary rings, be its surface of contact sealing height, good stability.
As further improvement of the utility model, described first, be full of respectively in two Seal cages sealing fluid is arranged, also be provided with booster jar, recycle pump and pumping plant, the outlet of first Seal cage is communicated with the import of booster jar, the outlet of booster jar is communicated with inlet of circulating pump, outlet of circulating pump is communicated with the import of first Seal cage, the outlet of second Seal cage is communicated with the pumping plant import, the pumping plant outlet is communicated with the import of second Seal cage, sealing fluid in first Seal cage is got back to first Seal cage again by booster jar and recycle pump, the sealing fluid of second Seal cage is got back to second Seal cage again through behind the pumping plant, and sealing fluid is recycling, saves resource.
As further improvement of the utility model, also be provided with pressure-detecting device and pressure control device, pressure-detecting device can detect the first Seal cage internal pressure, pressure-detecting device is messaging in pressure control device, pressure control device can be controlled the sealed fluid pressure of pumping plant output, because the first Seal cage internal pressure is unsteady pressure, can guarantee that so how the first Seal cage pressure no matter changes the second Seal cage internal pressure is half of the first Seal cage pressure all the time.
The beneficial effects of the utility model are: the utility model is by increasing by second Seal cage of a low pressure in first Seal cage outside, effectively reduce the pressure difference that first Seal cage connects end face, prevent that effectively first Seal cage from taking place to reveal and the situation of explosion takes place, guaranteed the safety in utilization of reactor.
Description of drawings
Fig. 1 is a structural principle schematic representation of the present utility model;
Fig. 2 is first, second and third rotating ring sealing configuration principle schematic.
Embodiment
Embodiment: a kind of reactor seal arrangement, comprise stirring shaft 10, first, two flanges 1,2, first sealed cylinder 3, first, two stationary rings 5,6 and first, two rotating rings 7,8, to use direction to be benchmark, first flange 1, first sealed cylinder 3 and second flange 2 are sheathed on stirring shaft 10 outsides from top to bottom successively, first sealed cylinder, 3 lower ends and the sealing of second flange, 2 upper ends are connected, first, two stationary rings 5,6 respectively sealing be fixedly arranged on inboard and inboard, second flange, 2 upper end, first flange, 1 lower end, be positioned at first of first sealed cylinder, 3 inboards, two rotating rings 7,8 respectively sealing and fixing be sheathed on stirring shaft 10 outsides, second rotating ring, 8 lower ends contact with the sealing of second stationary ring, 6 upper-end surfaces, also be provided with second sealed cylinder 4, the 3rd rotating ring 9 and the 3rd stationary ring 11, second sealed cylinder 4 is sheathed on stirring shaft 10 outsides, second sealed cylinder 4 is between first sealed cylinder 3 and first flange 1, and be connected with first sealed cylinder 3 and 1 sealing of first flange respectively, 11 sealings of the 3rd stationary ring are fixedly arranged on inboard, second sealed cylinder, 4 lower end, the 3rd rotating ring 9 sealing and fixing that are positioned at second sealed cylinder 4 are sheathed on stirring shaft 10 outsides, first rotating ring, 7 upper ends contact with the sealing of the 3rd stationary ring 11 lower ends, the 3rd rotating ring 9 upper ends contact with the sealing of first stationary ring, 5 lower ends, first, two sealed cylinders 3,4, second flange 2, stirring shaft 10, first, two rotating rings 7,8 and second, three stationary rings 6, form one first Seal cage 12 between 11, first flange 1, second sealed cylinder 4, first stationary ring 5, first, three rotating rings 7, form one second Seal cage 13 between the 9 and the 3rd stationary ring 11, described second Seal cage, 13 internal pressures are less than first Seal cage, 12 internal pressures, during actual the use, first Seal cage, 12 internal pressures give first, two sealed cylinders 3,4 connection end face forms the pressure towards second Seal cage, 13 directions, second Seal cage, 13 internal pressures give first, two sealed cylinders 3,4 connection end face forms the pressure towards first Seal cage, 12 directions, cancel out each other after two bursts of pressure reversal effects, with first, two sealed cylinders 3, the pressure that 4 connection end face bears effectively reduces, prevent that effectively first Seal cage 12 from bearing the excessive explosion of pressure because of end face, effectively prevent simultaneously first Seal cage 12 from leaking and cause to external world pollution (even first Seal cage 12 leaks, material will be discharged in second Seal cage 13 in first Seal cage 12, can directly not be discharged to the external world, also just prevented pollution to external world), make the reactor work safety further be protected like this.
Described second Seal cage, 13 internal pressures are half of first Seal cage, 12 internal pressures, the pressure difference between the connection end face of first and second sealed cylinder 3,4 can be reduced to minimum like this, fully guarantee the sealing and the Security of first Seal cage 12.
Described first, two rotating rings 7,8 respectively sealing and fixing be sheathed on the structure that stirring shaft 10 outsides and the 3rd rotating ring 9 sealing and fixing are sheathed on stirring shaft 10 outsides and be: first, two, three rotating rings 7,8,9 and stirring shaft 10 between form a loop gap respectively, be respectively equipped with a seal ring 14 in the described annular gap, seal ring 14 inboard elasticity press closer stirring shaft 10, outside elasticity respectively presses closer first, two, three rotating rings 7,8,9, described first, two, three rotating rings 7,8,9 and seal ring 14 axial clearances between also be respectively equipped with a ring-type back-up ring 15, in use, stirring shaft 10 high speed rotating, because first, has high pressure in two Seal cages, seal ring 14 can produce towards first, two, three rotating rings 7,8,9 and the trend (promptly axially jumping) of depths, 10 gaps of stirring shaft motion, 15 pairs of seal rings 14 of ring-type back-up ring play backstop action, prevent that seal ring 14 from entering first, two, three rotating rings 7,8,9 and stirring shaft depths, 10 gaps and resiliently deformable takes place, also just prevent that seal ring 14 from because of the situation that resiliently deformable lost efficacy takes place, fully having guaranteed first, the sealing of two Seal cages.
Described ring-type back-up ring 15 is an inner concave arc surface towards seal ring 14 1 sides, and seal ring 14 proper and these inner concave arc surface applyings prevent that further it from axially jumping.
First and second rotating ring 7,8 neutral position that described stirring shaft 10 is positioned at first Seal cage 12 also detachably are arranged with a bearing 16, bearing on this bearing 16 and first flange 1 forms two fulcrums and plays a supporting role, stirring shaft 10 can produce axial runout in the high speed rotating process, in the middle of first and second rotating ring 7,8 of first Seal cage 12, establish bearing 16, the axial-shift minimum that makes first and second rotating ring 7,8 generations like this, guarantee the parallelism height between itself and the 3rd, two stationary rings, be its surface of contact sealing height, good stability.
Described first, two Seal cages 12, be full of respectively in 13 sealing fluid is arranged, also be provided with booster jar 17, recycle pump 18 and pumping plant 19, the outlet of first Seal cage 12 is communicated with the import of booster jar 17, the outlet of booster jar 17 is communicated with the import of recycle pump 18, the outlet of recycle pump 18 is communicated with the import of first Seal cage 12, the outlet of second Seal cage 13 is communicated with pumping plant 19 imports, pumping plant 19 outlets are communicated with the import of second Seal cage 13, sealing fluid in first Seal cage 12 is got back to first Seal cage 12 again by booster jar 17 and recycle pump 18, the sealing fluid of second Seal cage 13 is got back to second Seal cage 13 again through behind the pumping plant 19, sealing fluid is recycling, saves resource.
Also be provided with pressure-detecting device and pressure control device, pressure-detecting device can detect first Seal cage, 12 internal pressures, pressure-detecting device is messaging in pressure control device, pressure control device can be controlled the sealed fluid pressure of pumping plant 19 outputs, because first Seal cage, 12 internal pressures are unsteady pressure, can guarantee that so how first Seal cage, 12 pressure no matter change second Seal cage, 13 internal pressures is half of first Seal cage, 12 pressure all the time.
Claims (7)
1. reactor seal arrangement, comprise stirring shaft (10), first, two flanges (1,2), first sealed cylinder (3), first, two stationary rings (5,6) and first, two rotating rings (7,8), to use direction to be benchmark, first flange (1), first sealed cylinder (3) and second flange (2) are sheathed on stirring shaft (10) outside from top to bottom successively, first sealed cylinder (3) lower end and the sealing of second flange (2) upper end are connected, first, two stationary rings (5,6) sealing is fixedly arranged on inboard and inboard, second flange (2) upper end, first flange (1) lower end respectively, be positioned at first of first sealed cylinder (3) inboard, two rotating rings (7,8) sealing and fixing is sheathed on stirring shaft (10) outside respectively, second rotating ring (8) lower end contacts with the sealing of second stationary ring (6) upper-end surface, it is characterized in that: also be provided with second sealed cylinder (4), the 3rd rotating ring (9) and the 3rd stationary ring (11), second sealed cylinder (4) is sheathed on stirring shaft (10) outside, second sealed cylinder (4) is positioned between first sealed cylinder (3) and first flange (1), and be connected with first sealed cylinder (3) and first flange (1) sealing respectively, the 3rd stationary ring (11) sealing is fixedly arranged on second sealed cylinder (4) inboard, lower end, the 3rd rotating ring (9) sealing and fixing that is positioned at second sealed cylinder (4) is sheathed on stirring shaft (10) outside, first rotating ring (7) upper end contacts with the sealing of the 3rd stationary ring (11) lower end, the 3rd rotating ring (9) upper end contacts with the sealing of first stationary ring (5) lower end, first, two sealed cylinders (3,4), second flange (2), stirring shaft (10), first, two rotating rings (7,8) and second, three stationary rings (6,11) form one first Seal cage (12) between, first flange (1), second sealed cylinder (4), first stationary ring (5), first, three rotating rings (7,9) form one second Seal cage (13) and between the 3rd stationary ring (11), described second Seal cage (13) internal pressure is less than first Seal cage (12) internal pressure.
2. reactor seal arrangement according to claim 1 is characterized in that: second Seal cage (13) internal pressure is half of first Seal cage (12) internal pressure.
3. reactor seal arrangement according to claim 1, it is characterized in that: described first, two rotating rings (7,8) sealing and fixing is sheathed on the structure that stirring shaft (10) outside and the 3rd rotating ring (9) sealing and fixing be sheathed on stirring shaft (10) outside and is respectively: first, two, three rotating rings (7,8,9) and form a loop gap between the stirring shaft (10) respectively, be respectively equipped with a seal ring (14) in the described annular gap, the inboard elasticity of seal ring (14) presses closer stirring shaft (10), outside elasticity respectively presses closer first, two, three rotating rings (7,8,9), described first, two, three rotating rings (7,8,9) and also be respectively equipped with a ring-type back-up ring (15) between seal ring (14) axial clearance.
4. reactor seal arrangement according to claim 3 is characterized in that: described ring-type back-up ring (15) is an inner concave arc surface towards seal ring (14) one sides.
5. reactor seal arrangement according to claim 1 is characterized in that: first and second rotating ring (7,8) neutral position that stirring shaft (10) is positioned at first Seal cage (12) also detachably is arranged with a bearing (16).
6. reactor seal arrangement according to claim 2, it is characterized in that: described first, two Seal cages (12,13) be full of respectively in sealing fluid is arranged, also be provided with booster jar (17), recycle pump (18) and pumping plant (19), the outlet of first Seal cage (12) is communicated with the import of booster jar (17), the outlet of booster jar (17) is communicated with the import of recycle pump (18), the outlet of recycle pump (18) is communicated with the import of first Seal cage (12), the outlet of second Seal cage (13) is communicated with pumping plant (19) import, and pumping plant (19) outlet is communicated with the import of second Seal cage (13).
7. reactor seal arrangement according to claim 6, it is characterized in that: also be provided with pressure-detecting device and pressure control device, pressure-detecting device can detect first Seal cage (12) internal pressure, pressure-detecting device is messaging in pressure control device, and pressure control device can be controlled the sealed fluid pressure of pumping plant (19) output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200208637U CN201944274U (en) | 2011-01-21 | 2011-01-21 | Sealing device for agitated reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200208637U CN201944274U (en) | 2011-01-21 | 2011-01-21 | Sealing device for agitated reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944274U true CN201944274U (en) | 2011-08-24 |
Family
ID=44471617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200208637U Expired - Lifetime CN201944274U (en) | 2011-01-21 | 2011-01-21 | Sealing device for agitated reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606736A (en) * | 2011-01-21 | 2012-07-25 | 昆山密友机械密封有限公司 | Sealing device for reaction kettles |
| CN109630686A (en) * | 2018-12-21 | 2019-04-16 | 中化蓝天氟材料有限公司 | A kind of combination sealing system of reaction kettle agitating shaft and its application |
-
2011
- 2011-01-21 CN CN2011200208637U patent/CN201944274U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606736A (en) * | 2011-01-21 | 2012-07-25 | 昆山密友机械密封有限公司 | Sealing device for reaction kettles |
| CN102606736B (en) * | 2011-01-21 | 2015-01-21 | 昆山密友机械密封有限公司 | Sealing device for reaction kettles |
| CN109630686A (en) * | 2018-12-21 | 2019-04-16 | 中化蓝天氟材料有限公司 | A kind of combination sealing system of reaction kettle agitating shaft and its application |
| CN109630686B (en) * | 2018-12-21 | 2020-08-28 | 中化蓝天氟材料有限公司 | Combined sealing system of reaction kettle stirring shaft and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20150121 |
|
| RGAV | Abandon patent right to avoid regrant |