CN201651315U - Composite mechanical seal device - Google Patents
Composite mechanical seal device Download PDFInfo
- Publication number
- CN201651315U CN201651315U CN2010201534253U CN201020153425U CN201651315U CN 201651315 U CN201651315 U CN 201651315U CN 2010201534253 U CN2010201534253 U CN 2010201534253U CN 201020153425 U CN201020153425 U CN 201020153425U CN 201651315 U CN201651315 U CN 201651315U
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- overcoat
- seam
- seal
- sealing pair
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Abstract
The utility model discloses a composite mechanical seal device comprising a seal pair which is arranged between a supporting sleeve and a main outer sleeve, wherein a filler seal pair is arranged at one side of the seal pair. The utility model has the advantages that the composite mechanical seal is provided with the seal pair, and the filler seal pair is arranged at one side of the seal pair, therefore, the outside impurities can be prevented from reaching a sealing surface, the wear of the sealing surface is reduced, the service life is prolonged, the sealing effect is improved, the safety, reliability and durability of the mechanical seal device are greatly improved, the service life of the mechanical seal is greatly prolonged, the maintenance cost is reduced, the overall comprehensive efficiency of the machine is improved, and the mechanical seal plays a significant role in practicability and promotion. The utility model is applicable to the shaft end seal of a centrifugal pump for conveying various media, such as water, oil and mud pumps, as well as stirring and reaction kettles, particularly applicable to the mechanical shaft end seal of the high-speed and high-pressure machines, pumps and kettles.
Description
Technical field
The utility model belongs to the mechanical seal field, relates to a kind of mechanical seal device specifically.
Background technique
Along with the industrial development of technology of modernization, the variety of fluids machinery that extensively and in large quantities uses in the commercial plant system maximizes just towards high parameter, and aspects such as energy-conserving and environment-protective develop rapidly.In these fluid machineries, the axle head leakage problem between rotating shaft and stator terminal body has also caused showing great attention to of design engineers.From Britain in 1908 the various mechanical seal that the technology of using end face seal was first used to today on steam turbine, one over 100 years the technological progress and promoting the use of more and more of mechanical seal be subject to people's attention.Because it is to control leakage, environmental protection is energy-conservation, security personnel's advanced envelope form, and therefore design is produced and is used more rational mechanical seal to become solution and run, and emits, and drips, and leaks, and improves environment, improves gear efficiency and the effective way that reduces production costs.
Though mechanical seal is component in the machinery equipment just, Security, reliability and durability that it can decision device.Find that 42% is to cause in equipment leakage in Japan's 786 accident investigations once to certain enterprise's generation.What is more, and U.S.'s Challenger space shuttle also is to fall because of seals accident.Comprehensive survey by domestic and international electric power, petroleum chemical enterprise has all shown in the device maintenance such as our daily use machine, pump, still, the maintenance load of mechanical seal almost accounts for 50%, also has data to show that the maintenance expenses about 70% of centrifugal pump has been used for the reparation of seal failure.
The mechanical seal device structure of using is that supporting sleeve is arranged with the secondary and secondary sealing pair of primary seal outward at present, these two sealing pairs all are to expose outside, owing to use the mechanical seal device in machinery equipment to be used in the non-pure liquid such as pump, still more, external impurities easily arrives sealing pair like this, serious wear, the working life that shortens mechanical seal device, sealing effect was also poor simultaneously.Thereby reduced the Security of mechanical seal device, reliability and durability.
Summary of the invention
The purpose of this utility model just is to provide a kind of Double End composite machine seal arrangement that increases the service life significantly.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of composite machine seal arrangement comprises the sealing pair that is provided with between supporting sleeve and the main overcoat, in sealing pair one side the packing sealing pair is set.
Above-mentioned composite machine seal arrangement, described packing sealing pair form seam I at main overcoat one side fixed joint overcoat between secondary overcoat and the supporting sleeve, fill at least one packing sealing pair in the seam I.
Above-mentioned composite machine seal arrangement, described packing sealing pair is two circles.
Above-mentioned composite machine seal arrangement is provided with sealing pair and is meant that main overcoat is provided with the double seals pair between described supporting sleeve and the main overcoat.
Above-mentioned composite machine seal arrangement, described double seals refers to that main overcoat is provided with T stage, two of opposing setting seams on T stage, T stage right side seam is provided with the right side rotary packing ring, the left side seam is provided with the left side rotary packing ring, the right side is moved between seal ring and the left side rotary packing ring by the pin clamping of passing T stage, the right end cap fixing with main overcoat is provided with seam IV, the left side stationary seal ring is set in the seam IV, T stage left side and main overcoat be the outer overcoat of T stage pair fixedly, the secondary overcoat of T stage right side seam is established the left side stationary seal ring, in the secondary overcoat left side seam V packing sealing pair is set, and seam V place is provided with friction top.
Above-mentioned composite machine seal arrangement is provided with flushing hole in the main overcoat, and the supporting sleeve outer ring surface is provided with screw thread.
Above-mentioned composite machine seal arrangement is provided with spring between secondary overcoat and the left side stationary seal ring.
Above-mentioned composite machine seal arrangement, the packing described in the packing sealing pair are charcoal fiber linea angulata graphite plate roots.
Adopt technique scheme, the utility model has following advantage: composite machine is sealed in and not only is provided with sealing pair, and the packing sealing pair is set in sealing pair one side, so just can stop extraneous foreign material to arrive sealing surface to reduce the wearing and tearing of sealing surface, increase the service life, sealing effect, the Security that significantly improves mechanical seal device, reliability and durability have also been improved simultaneously.Prolong mechanical seal service life significantly, reduced the maintenance expenses of equipment, improved the whole synthesis efficient of machine, thereby will bring into play its huge effect aspect the practical popularization of mechanical seal.The utility model is applicable to carries various medium centrifugal pumps, Ru Shui, oil, slurry pump etc., and still is as the shaft end seal of stirring, reactor etc.Be specially adapted to machine, the pump of high rotating speed, high pressure, the mechanical shaft end seal of still.
Description of drawings
Fig. 1 is the utility model sectional structure schematic representation;
Fig. 2 is an explosive view of the present utility model.
Embodiment
The utility model is done with detailed description below in conjunction with drawings and Examples:
A kind of composite machine seal arrangement as depicted in figs. 1 and 2, comprise the sealing pair that is provided with between supporting sleeve 9 and the main overcoat 7, in sealing pair one side packing sealing pair 8 is set, described packing sealing pair 8 is at main overcoat 7 one side fixed joint overcoats 11, form seam I between secondary overcoat 11 and the supporting sleeve 9, fill at least one packing sealing pair in the seam I, described packing sealing pair is two circles, sealing pair is set between described supporting sleeve 9 and the main overcoat 7 is meant that main overcoat 7 is provided with the double seals pair, double seals refers to that main overcoat 7 is provided with T stage, two of opposing setting seams on T stage, T stage right side seam is provided with right side rotary packing ring 17, the left side seam is provided with left side rotary packing ring 16, the right side is moved between seal ring 17 and the left side rotary packing ring 16 by pin 14 clampings of passing T stage, the right end cap of fixing with main overcoat 7 10 is provided with seam IV, left side stationary seal ring 18 is set in the seam IV, T stage left side and Zhu Wai Whirlwind 7 be the outer overcoat 11 of T stage pair fixedly, the secondary overcoat 11 right side seams of T stage are established left side stationary seal ring 19, in the secondary overcoat 11 left side seam V packing sealing pair 8 is set, seam V place is provided with friction top 12, be provided with flushing hole 13 in the main overcoat 7, supporting sleeve 9 outer ring surfaces 15 are provided with screw thread, sparge water arrives secondary sealing area by the spiral chute between the screw thread, be provided with spring 20 between secondary overcoat 11 and the left side stationary seal ring 19, packing described in the packing sealing pair is a charcoal fiber linea angulata graphite plate root, promptly is filled into friction top 12 with charcoal fiber linea angulata graphite plate root, form the packing sealing pair in secondary overcoat 11 and the supporting sleeve 9 formed cavitys.
Packing sealing pair of the present utility model can also be in three, four, five or 6 toroidal cavities that are set in successively between secondary overcoat 11 and the left gland 12, can both reach sealing of the present utility model and and mill effect.
Claims (8)
1. a composite machine seal arrangement comprises the sealing pair that is provided with between supporting sleeve (9) and the main overcoat (7), it is characterized in that: in sealing pair one side packing sealing pair (8) is set.
2. composite machine seal arrangement according to claim 1, it is characterized in that: described packing sealing pair (8) is at main overcoat (7) one side fixed joint overcoats (11), form seam I between secondary overcoat (11) and the supporting sleeve (9), fill at least one packing sealing pair in the seam I.
3. composite machine seal arrangement according to claim 2 is characterized in that: described packing sealing pair is two circles.
4. composite machine seal arrangement according to claim 3 is characterized in that: sealing pair is set between described supporting sleeve (9) and the main overcoat (7) is meant that main overcoat (7) is provided with the double seals pair.
5. composite machine seal arrangement according to claim 4, it is characterized in that: described double seals refers to that main overcoat (7) is provided with T stage, two of opposing setting seams on T stage, T stage right side seam is provided with right side rotary packing ring (17), the left side seam is provided with left side rotary packing ring (16), the right side is moved between seal ring (17) and the left side rotary packing ring (16) by the pin that passes T stage (14) clamping, the right end cap (10) fixing with main overcoat (7) is provided with seam IV, left side stationary seal ring (18) is set in the seam IV, T stage left side and Zhu Wai Whirlwind (7) be the secondary overcoat (11) of T stage fixedly, the secondary overcoat (11) of T stage right side seam is established left side stationary seal ring (19), in the seam V of secondary overcoat (11) left side packing sealing pair (8) is set, seam V place is provided with friction top (12).
6. composite machine seal arrangement according to claim 5 is characterized in that: be provided with flushing hole (13) in the main overcoat (7), supporting sleeve (9) outer ring surface (15) is provided with screw thread.
7. composite machine seal arrangement according to claim 6 is characterized in that: be provided with spring (20) between secondary overcoat (11) and the left side stationary seal ring (19).
8. composite machine seal arrangement according to claim 7 is characterized in that: the packing described in the packing sealing pair is a charcoal fiber linea angulata graphite plate root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534253U CN201651315U (en) | 2010-04-09 | 2010-04-09 | Composite mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534253U CN201651315U (en) | 2010-04-09 | 2010-04-09 | Composite mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651315U true CN201651315U (en) | 2010-11-24 |
Family
ID=43116550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201534253U Expired - Fee Related CN201651315U (en) | 2010-04-09 | 2010-04-09 | Composite mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651315U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494139A (en) * | 2011-12-16 | 2012-06-13 | 山东米科思机械设备有限公司 | Novel shaft-end sealing structure of concrete mixer |
| CN103470768A (en) * | 2013-08-30 | 2013-12-25 | 西安交通大学苏州研究院 | Carbon ring seal |
| CN106812946A (en) * | 2017-03-29 | 2017-06-09 | 黑龙江圣邦投资咨询有限公司 | A kind of aviation decelerator graphite seal device |
-
2010
- 2010-04-09 CN CN2010201534253U patent/CN201651315U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494139A (en) * | 2011-12-16 | 2012-06-13 | 山东米科思机械设备有限公司 | Novel shaft-end sealing structure of concrete mixer |
| CN103470768A (en) * | 2013-08-30 | 2013-12-25 | 西安交通大学苏州研究院 | Carbon ring seal |
| CN103470768B (en) * | 2013-08-30 | 2015-12-02 | 西安交通大学苏州研究院 | A kind of carbon ring seal |
| CN106812946A (en) * | 2017-03-29 | 2017-06-09 | 黑龙江圣邦投资咨询有限公司 | A kind of aviation decelerator graphite seal device |
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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: 20101124 Termination date: 20160409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |