CN203516176U - Mechanical sealing device for nuclear power charging pump - Google Patents
Mechanical sealing device for nuclear power charging pump Download PDFInfo
- Publication number
- CN203516176U CN203516176U CN201320579962.8U CN201320579962U CN203516176U CN 203516176 U CN203516176 U CN 203516176U CN 201320579962 U CN201320579962 U CN 201320579962U CN 203516176 U CN203516176 U CN 203516176U
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- Prior art keywords
- ring
- stationary
- seat
- pin
- stop pin
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- Withdrawn - After Issue
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Abstract
The utility model provides a mechanical sealing device for a nuclear power charging pump. The mechanical sealing device for the nuclear power charging pump comprises a movable ring assembly and a stationary ring assembly composed of a stationary ring (2), a stationary ring seat (23), a stationary ring compensation spring (28), a stationary ring seat anti-rotating pin and a pressing cover (5), and is characterized in that a positioning frame (52) is arranged at the front end surface (50) of the pressing cover (5), a slotted hole (53) is formed in the positioning frame (52), a radial pin hole (6) is formed in the outer ring surface of the stationary ring seat (23), a T-shaped anti-rotating pin (7) is installed in the slotted hole (53) of the positioning frame (52) to be matched with the pin hole (6) in the stationary ring seat (23), a concave groove (72) is formed in a pin rod of the anti-rotating pin (7), and an O-shaped rubber ring (73) is installed inside the concave groove (72). The mechanical sealing device for the nuclear power charging pump improves the safety reliability of the anti-rotating pin (7), enables the stationary ring assembly to be of an integrated structure, is convenient to transport, install and detach, and brings convenience to installation and maintenance.
Description
Technical field
What the utility model patent related to is mechanical seal device, particularly on nuclear power station, fills the mechanical seal device of pump.
Background technique
On prior art nuclear power, fill the mechanical seal device of pump as shown in Figure 1, comprise the moving ring assembly of rotating ring 1, axle sleeve 12, rotating ring stop pin 13, rotating ring auxiliary seal ring 14 compositions and the static components that stationary ring 2, stationary seat 23, stationary seat auxiliary seal ring 27, stationary ring counterbalance spring 28, stationary seat stop pin 4, gland 5 form, rotating ring 1 is arranged in the rabbet seat 10 on axle sleeve 12, stationary ring 2 is arranged in the stationary ring cover 21 of stationary seat 23 front ends, moving cooperation of stationary seat 23 is arranged in the step type slotted eye on gland 5, at stationary seat 23 outer ring surfaces and 5, gland, stationary seat auxiliary seal ring 27 is set, on gland 5 front-end faces 50, offer stationary ring counterbalance spring 28 mounting holes, the stationary ring counterbalance spring 28 being arranged in gland 5 upper spring mounting holes acts on stationary seat 23 rear side end faces 29, on gland 5 front-end faces 50, axial restraint is provided with stationary seat 23 stop pins 4, this stop pin 4 coordinates with anti-rotation pin-and-hole 40 on stationary seat 23 rear side end faces 29 and prevents that stationary seat 23 from rotating.
The direct interference of its stationary seat stop pin 4 of above-mentioned prior art is embedded on gland front-end face 50, requirement on machining accuracy to pin-and-hole on stop pin 4 and gland 5 is very high, difficulty of processing is large, processing cost is high, because the machining accuracy control difficulty of this pin and matching hole is large, easily there is the situation that stop pin 4 comes off.The length of stationary seat stop pin 4 is long, and rigidity is poor.Stop pin 4 is non-dismountable, maintenance difficult.
Another shortcoming of above-mentioned prior art is that static components is not unit loading type structure, like this in transportation, installation, inconvenient during repair demolition.
Model utility content
The purpose of this utility model is to improve for the shortcoming deficiency of above-mentioned prior art, provides on a kind of nuclear power of improvement and fills discharge pump mechanical seal device, to reduce the processing of stationary seat stop pin and installation precision requirement, improves the safety reliability of use; And provide a kind of static components be unit loading type structure on fill discharge pump mechanical seal device so that transportation, install, dismounting, make install and keep in repair convenient.
On the utility model nuclear power, fill the mechanical seal device of pump, comprise the moving ring assembly of rotating ring 1, axle sleeve 12, rotating ring stop pin 13, rotating ring auxiliary seal ring 14 compositions and the static components that stationary ring 2, stationary ring cover 21, stationary seat 23, stationary ring auxiliary seal ring 24,25, stationary ring stop pin 26, stationary seat auxiliary seal ring 27, stationary ring counterbalance spring 28, stationary seat stop pin, gland 5 form, rotating ring 1 is arranged in the rabbet seat 10 on axle sleeve 12, at outer ring surface and 10 of the rabbet seats of rotating ring 1, rotating ring auxiliary seal ring 14 is set, on the rear end of rotating ring 1 and 10 device rotating ring stop pins 13 of rabbet seat, moving cooperation of stationary ring 2 is arranged in stationary ring cover 21, the ear end face of stationary ring cover 21 coordinates to be screwed by seam with the front-end face of stationary seat 23 and is connected, outer ring surface and 21, stationary ring cover at stationary ring 2 arrange stationary ring auxiliary seal ring 24, ear end face and 23 of stationary seats at stationary ring 2 arrange ring auxiliary seal ring 25, ear end face and 23 of stationary seats at stationary ring 2 arrange stationary ring stop pin 26, moving cooperation of stationary seat 23 is arranged in the step type slotted eye on gland 5, at stationary seat 23 outer ring surfaces and 5, gland, stationary seat auxiliary seal ring 27 is set, on gland 5 front-end faces 50, offer stationary ring counterbalance spring 28 mounting holes, the stationary ring counterbalance spring 28 being arranged in gland 5 upper spring mounting holes acts on stationary seat 23 rear side end faces 29, it is characterized in that being provided with position shelf 52 on gland 5 front-end faces 50, on this position shelf 52, offer slotted eye 53, on stationary seat 23 outer ring surfaces, offer radially pin-and-hole 6, T shape stop pin 7 is installed in the slotted eye 53 of position shelf 52 to be coordinated with the pin-and-hole 6 on stationary seat 23, on the pin rod of stop pin 7, offer groove 72, O shape cushion rubber 73 is installed in this groove 72, the frictional force producing after O circle compression prevents that stop pin 7 from deviating from from stationary seat pin-and-hole 6, make the pin-and-hole 6 on stop pin 7 pin rods and stationary seat 23 form fastening secure fit, for the ease of installation and removal stop pin 7, the bottom of the pin-and-hole 6 on stationary seat 23 has vent 60 and communicates with gland 5 front-end faces 50, when plug-in mounting stop pin 7 by the Bas Discharged in pin-and-hole 6, with more in stop pin 7 insertion pin-and-holes 6, on stop pin 7, on top end, have tapped hole 76, so that when unloading stop pin 7, by with screw rod and easy to connect stop pin 7 is extracted from pin-and-hole 6 of tapped hole 76.
The utility model not only reduces the processing of stationary seat stop pin and installation precision requirement, improves the safety reliability of using, and the rigidity of driving pin has obtained reinforcement, avoids stationary seat in slipping, to have retardance phenomenon.And stop pin 7 structures make static components be unit loading type structure, be convenient to transportation, install, dismantle, make install and keep in repair convenient.
Accompanying drawing explanation
Fig. 1 is prior art structural representation.
Fig. 2 is the utility model example structure schematic diagram.
Fig. 3 is the partial view of Fig. 2.
Embodiment
On the utility model nuclear power, fill the mechanical seal device of pump, comprise the moving ring assembly of rotating ring 1, axle sleeve 12, rotating ring stop pin 13, rotating ring auxiliary seal ring 14 compositions and the static components that stationary ring 2, stationary ring cover 21, stationary seat 23, stationary ring auxiliary seal ring 24,25, stationary ring stop pin 26, stationary seat auxiliary seal ring 27, stationary ring counterbalance spring 28, stationary seat stop pin, gland 5 form, rotating ring 1 is arranged in the rabbet seat 10 on axle sleeve 12, at outer ring surface and 10 of the rabbet seats of rotating ring 1, rotating ring auxiliary seal ring 14 is set, on the rear end of rotating ring 1 and 10 device rotating ring stop pins 13 of rabbet seat, moving cooperation of stationary ring 2 is arranged in stationary ring cover 21, the ear end face of stationary ring cover 21 coordinates to be screwed by seam with the front-end face of stationary seat 23 and is connected, outer ring surface and 21, stationary ring cover at stationary ring 2 arrange stationary ring auxiliary seal ring 24, ear end face and 23 of stationary seats at stationary ring 2 arrange ring auxiliary seal ring 25, ear end face and 23 of stationary seats at stationary ring 2 arrange stationary ring stop pin 26, moving cooperation of stationary seat 23 is arranged in the step type slotted eye on gland 5, at stationary seat 23 outer ring surfaces and 5, gland, stationary seat auxiliary seal ring 27 is set, on gland 5 front-end faces 50, offer stationary ring counterbalance spring 28 mounting holes, the stationary ring counterbalance spring 28 being arranged in gland 5 upper spring mounting holes acts on stationary seat 23 rear side end faces 29, it is characterized in that being provided with position shelf 52 on gland 5 front-end faces 50, on this position shelf 52, offer slotted eye 53, on stationary seat 23 outer ring surfaces, offer radially pin-and-hole 6, T shape stop pin 7 is installed in the slotted eye 53 of position shelf 52 to be coordinated with the pin-and-hole 6 on stationary seat 23, on the pin rod of stop pin 7, offer groove 72, O shape cushion rubber 73 is installed in this groove 72, make the pin-and-hole 6 on stop pin 7 pin rods and stationary seat 23 form fastening secure fit, the bottom of the pin-and-hole 6 on stationary seat 23 has vent 60 and communicates with gland 5 front-end faces 50, on stop pin 7, on top end, have tapped hole 76.
Claims (2)
1. on nuclear power, fill discharge pump mechanical seal device, comprise the moving ring assembly of rotating ring (1), axle sleeve (12), rotating ring stop pin (13), rotating ring auxiliary seal ring (14) composition and the static components that stationary ring (2), stationary ring cover (21), stationary seat (23), stationary ring auxiliary seal ring (24,25), stationary ring stop pin (26), stationary seat auxiliary seal ring (27), stationary ring counterbalance spring (28), stationary seat stop pin, gland (5) form, rotating ring (1) is arranged in the rabbet seat (10) on axle sleeve (12), between the outer ring surface of rotating ring (1) and rabbet seat (10), rotating ring auxiliary seal ring (14) is set, on the rear end of rotating ring (1) and between rabbet seat (10), install rotating ring stop pin (13), moving cooperation of stationary ring (2) is arranged in stationary ring cover (21), the ear end face of stationary ring cover (21) coordinates to be screwed by seam with the front-end face of stationary seat (23) and is connected, between the outer ring surface of stationary ring (2) and stationary ring cover (21), stationary ring auxiliary seal ring (24) is set, ring auxiliary seal ring (25) is set between the ear end face of stationary ring (2) and stationary seat (23), between the ear end face of stationary ring (2) and stationary seat (23), stationary ring stop pin (26) is set, moving cooperation of stationary seat (23) is arranged in the step type slotted eye on gland (5), between stationary seat (23) outer ring surface and gland (5), stationary seat auxiliary seal ring (27) is set, on gland (5) front-end face (50), offer stationary ring counterbalance spring (28) mounting hole, the stationary ring counterbalance spring (28) being arranged in gland (5) upper spring mounting hole acts on stationary seat (23) rear side end face (29), it is characterized in that being provided with position shelf (52) on gland (5) front-end face (50), on this position shelf (52), offer slotted eye (53), on stationary seat (23) outer ring surface, offer radially pin-and-hole (6), T shape stop pin (7) is installed in the slotted eye (53) of position shelf (52) to be coordinated with the pin-and-hole (6) on stationary seat (23), on the pin rod of stop pin (7), offer groove (72), O shape cushion rubber (73) is installed in this groove (72), make the pin-and-hole (6) on stop pin (7) pin rod and stationary seat (23) form fastening secure fit, the bottom of the pin-and-hole (6) on stationary seat (23) has vent (60) and communicates with gland (5) front-end face (50), in order to when plug-in mounting stop pin (7) by the Bas Discharged in pin-and-hole (6).
2. on nuclear power according to claim 1, fill the mechanical seal device of pump, it is characterized in that having tapped hole (76) on the upper top end of stop pin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579962.8U CN203516176U (en) | 2013-09-19 | 2013-09-19 | Mechanical sealing device for nuclear power charging pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579962.8U CN203516176U (en) | 2013-09-19 | 2013-09-19 | Mechanical sealing device for nuclear power charging pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516176U true CN203516176U (en) | 2014-04-02 |
Family
ID=50375112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320579962.8U Withdrawn - After Issue CN203516176U (en) | 2013-09-19 | 2013-09-19 | Mechanical sealing device for nuclear power charging pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516176U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486076A (en) * | 2013-09-19 | 2014-01-01 | 丹东克隆集团有限责任公司 | Nuclear power charging pump mechanical seal device |
| CN109340377A (en) * | 2018-09-28 | 2019-02-15 | 安徽安密机械密封有限公司 | A kind of elastomer spring mechanical seal and its processing technology |
| CN112855940A (en) * | 2021-02-18 | 2021-05-28 | 中国航发沈阳发动机研究所 | Graphite circumference seal structure |
-
2013
- 2013-09-19 CN CN201320579962.8U patent/CN203516176U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486076A (en) * | 2013-09-19 | 2014-01-01 | 丹东克隆集团有限责任公司 | Nuclear power charging pump mechanical seal device |
| CN103486076B (en) * | 2013-09-19 | 2015-09-02 | 丹东克隆集团有限责任公司 | Nuclear power fills discharge pump mechanical seal device |
| CN109340377A (en) * | 2018-09-28 | 2019-02-15 | 安徽安密机械密封有限公司 | A kind of elastomer spring mechanical seal and its processing technology |
| CN112855940A (en) * | 2021-02-18 | 2021-05-28 | 中国航发沈阳发动机研究所 | Graphite circumference seal structure |
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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: 20140402 Effective date of abandoning: 20150902 |
|
| RGAV | Abandon patent right to avoid regrant |