CN103234046A - Twist-off prevention mechanical sealing device of vapor-liquid full-flow screw power machine - Google Patents
Twist-off prevention mechanical sealing device of vapor-liquid full-flow screw power machine Download PDFInfo
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- CN103234046A CN103234046A CN2013101270253A CN201310127025A CN103234046A CN 103234046 A CN103234046 A CN 103234046A CN 2013101270253 A CN2013101270253 A CN 2013101270253A CN 201310127025 A CN201310127025 A CN 201310127025A CN 103234046 A CN103234046 A CN 103234046A
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Abstract
A twist-off prevention mechanical sealing device of a vapor-liquid full-flow screw power machine comprises a moving ring (1), a moving ring shaft sleeve (4), a corrugated tube compensation stationary ring (2) which is arranged on the left side of the moving ring (1) and a spring compensation stationary ring (3) which is arranged on the right side of the moving ring (1); the corrugated tube compensation stationary ring (2) is connected with a connecting seat (24) through a corrugated tube tailstock (22) in a welding mode; a blocking block (25) is arranged on a lateral end surface of the connecting seat (24); and an outer ring surface of a stationary ring seat (23) is provided with a blocking groove (27) which is matched with the blocking block (25) to limit the rotation of the stationary ring seat (23). The twist-off prevention mechanical sealing device of the vapor-liquid full-flow screw power machine has the advantages of preventing the stationary ring seat (23) from driving a metal corrugated tube (21) to twist, preventing the metal corrugated tube (21) from causing fatigue and twist-off and prolonging the service life.
Description
Technical field
The steam-water helical screw power machine screw axis mechanical seal device the present invention relates to.
Background technique
Steam-water helical screw power machine comprises that casing, a pair of helical rotor mutually be rotatably assorted, mechanical seal device, synchromesh gear, low voltage terminal seat, high voltage terminal seat form, intermeshing helical rotor is arranged in casing, the synchromesh gear of helical rotor axle, bearing, mechanical seal device are arranged on respectively in low voltage terminal seat, high voltage terminal seat, mechanical seal device is sealed the helical rotor axle, offers respectively the admission mouth of pipe and steam outlet pipe mouth at the casing two ends.High pressure carbonated drink is entered by steam inlet, and the effect helical rotor rotates, then is discharged by steam ouput, and pressure medium is converted to power output.
Mechanical seal is the critical component of screw power machine and unique easily damaged parts, and its quality directly affects working life and the repair cycle of this equipment.This mechanical seal device working environment medium is the mixed state of high temperature and high pressure steam or steam and hot water, and it is larger on the mechanical sealing performance impact.In order to improve the performance of mechanical seal device, the CN201687933U patent discloses a kind of mechanical seal device for steam-water helical screw power machine, it consists of rotating ring 1, rotating ring axle sleeve 4, the bellows compensation stationary ring 2 that is separately positioned on rotating ring 1 left side and the spring-compensating radial direction double end-face stationary ring 3 on right side, forms axial Double End and radial double mechanical seal mechanism.On its structure, bellows compensation stationary ring 2 is owing to there is no auxiliary sealing structure, so the even compensation performance of its elastic force is good, and mechanical seal device outer shroud waterway a is by bellows 21 heat exchange, temperature that can effectively reduction sealing medium, reduce bellows compensation stationary ring 2 internal ring portion medium temperatures, make steam medium be condensed into water, reduced the operating ambient temperature of friction pair, improve friction sealed end face working environment, improve the functional reliability of friction sealed end face, the radial direction double end-face stationary ring 3 on rotating ring 1 right side seals with the axial both-end of rotating ring 1 mix proportion together with wave duct compensation stationary ring 2
.
The primary seal side of above-mentioned prior art mechanical seal device, be that rotating ring 1 compensates with the bellows in left side the friction pair that stationary ring 2 forms, high-pressure and high-temperature steam medium in body is sealed, the vapor pressure of primary seal front end is large, the vapour-liquid two-phase is difficult to form stable liquid film at abrasive end face, therefore lubricity is bad, end-face friction is large, and medium is that high-temperature steam is arranged, make lubricating end surface poorer, bellows need bear the moment of torsion larger than common liq medium, and the equipment frequent starting makes mechanical seal bear larger torsion, easily causing bellows 21 fatigues to twist off phenomenon occurs.
Summary of the invention
The objective of the invention is to be improved for above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, use reliably, the mechanical sealing device of vapour-liquid full flow screw power machine of good stability, twist off phenomenon to prevent the primary seal bellows, improves working life.
The present invention includes rotating ring 1, rotating ring axle sleeve 4, be separately positioned on the bellows compensation stationary ring 2 in rotating ring 1 left side and the spring-compensating radial direction double end-face stationary ring 3 on right side, stationary ring 2 is welded to connect by bellows tailstock 22 and connection seat 24, it is characterized in that being provided with fixture block 25 on the side end face of connection seat 24, be provided with bulge loop 26 on the outer ring surface of stationary seat 23, offer groove draw-in groove 27 and coordinate with the fixture block 25 on connection seat 24 side end faces on this bulge loop 26, restriction stationary seat 23 rotates.
The present invention is simple in structure, use reliable, good stability, by the fixture block 25 on connection seat 24 side end faces, with the draw-in groove 27 on stationary seat 23, coordinate, restriction stationary seat 23 rotates, prevent that stationary seat 23 from driving metal bellows 21 and producing torsion, prevent that bellows 21 from producing fatigues and twisting off the phenomenon generation, increase the service life.
The accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation.
Fig. 2 is connection seat 24 structural representations.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is stationary seat 23 structural representations.
Fig. 5 is that the B of Fig. 4 is to view.
Embodiment
The present invention includes rotating ring 1, rotating ring axle sleeve 4, be separately positioned on the bellows compensation stationary ring 2 in rotating ring 1 left side and the spring-compensating radial direction double end-face stationary ring 3 on right side, stationary ring 2 comprises bellows tailstock 22, metal bellows 21, stationary seat 23, static friction ring 20, static friction ring 20 is inlayed and is connected with stationary seat 23, stationary seat 23, metal bellows 21, bellows tailstock 22 is welded to connect each other, stationary ring 2 is welded to connect by bellows tailstock 22 and connection seat 24, be provided with fixture block 25 on the side end face of connection seat 24, be provided with bulge loop 26 on the outer ring surface of stationary seat 23, offering groove draw-in groove 27 on this bulge loop 26 coordinates with the fixture block 25 on connection seat 24 side end faces, restriction stationary seat 23 rotates.
Bellows stationary ring 2 primary seal end faces of the present invention, can bear the 1.5MPa back-pressure, 200 ℃ of high-temperature steam operating modes, and can bear the frequent starting of equipment, efficiently solve metal bellows and often twist off the defect of tearing.
Claims (1)
1. steam-water helical screw power machine prevents twisting off mechanical seal device
,comprise rotating ring (1), rotating ring axle sleeve (4), be separately positioned on the bellows compensation stationary ring (2) in rotating ring (1) left side and the spring-compensating radial direction double end-face stationary ring (3) on right side, stationary ring (2) is welded to connect by bellows tailstock (22) and connection seat (24), it is characterized in that being provided with fixture block (25) on the side end face of connection seat (24), be provided with bulge loop (26) on the outer ring surface of stationary seat (23), offering groove draw-in groove (27) on this bulge loop (26) coordinates with the fixture block (25) on connection seat (24) side end face, restriction stationary seat (23) rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101270253A CN103234046A (en) | 2013-04-14 | 2013-04-14 | Twist-off prevention mechanical sealing device of vapor-liquid full-flow screw power machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101270253A CN103234046A (en) | 2013-04-14 | 2013-04-14 | Twist-off prevention mechanical sealing device of vapor-liquid full-flow screw power machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103234046A true CN103234046A (en) | 2013-08-07 |
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ID=48882098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101270253A Pending CN103234046A (en) | 2013-04-14 | 2013-04-14 | Twist-off prevention mechanical sealing device of vapor-liquid full-flow screw power machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234046A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676004A (en) * | 2015-02-13 | 2015-06-03 | 江苏科奥流体科技有限公司 | Integral sealing device of hydraulic pump |
| CN110486475A (en) * | 2019-09-12 | 2019-11-22 | 中国石油大学胜利学院 | A kind of wave bullet formula mechanically-sealing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1323960A2 (en) * | 2001-12-28 | 2003-07-02 | Eagle Industry Co., Ltd. | Mechanical seal device |
| CN201787068U (en) * | 2010-08-04 | 2011-04-06 | 安徽亚兰密封件有限公司 | Torsion-free mechanical sealing device |
| CN201827376U (en) * | 2010-03-26 | 2011-05-11 | 丹东克隆集团有限责任公司 | Anti-twist mechanical seal device for corrugated pipe |
| CN102072321A (en) * | 2011-01-24 | 2011-05-25 | 丹东克隆集团有限责任公司 | Mechanical seal device of screw power machine |
| CN203214884U (en) * | 2013-04-14 | 2013-09-25 | 丹东克隆集团有限责任公司 | Twist-off prevention mechanical sealing device of vapor-liquid full flow screw power machine |
-
2013
- 2013-04-14 CN CN2013101270253A patent/CN103234046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1323960A2 (en) * | 2001-12-28 | 2003-07-02 | Eagle Industry Co., Ltd. | Mechanical seal device |
| CN201827376U (en) * | 2010-03-26 | 2011-05-11 | 丹东克隆集团有限责任公司 | Anti-twist mechanical seal device for corrugated pipe |
| CN201787068U (en) * | 2010-08-04 | 2011-04-06 | 安徽亚兰密封件有限公司 | Torsion-free mechanical sealing device |
| CN102072321A (en) * | 2011-01-24 | 2011-05-25 | 丹东克隆集团有限责任公司 | Mechanical seal device of screw power machine |
| CN203214884U (en) * | 2013-04-14 | 2013-09-25 | 丹东克隆集团有限责任公司 | Twist-off prevention mechanical sealing device of vapor-liquid full flow screw power machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676004A (en) * | 2015-02-13 | 2015-06-03 | 江苏科奥流体科技有限公司 | Integral sealing device of hydraulic pump |
| CN110486475A (en) * | 2019-09-12 | 2019-11-22 | 中国石油大学胜利学院 | A kind of wave bullet formula mechanically-sealing apparatus |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130807 |