CN201772059U - Closed mechanical sealing device - Google Patents
Closed mechanical sealing device Download PDFInfo
- Publication number
- CN201772059U CN201772059U CN2010201534357U CN201020153435U CN201772059U CN 201772059 U CN201772059 U CN 201772059U CN 2010201534357 U CN2010201534357 U CN 2010201534357U CN 201020153435 U CN201020153435 U CN 201020153435U CN 201772059 U CN201772059 U CN 201772059U
- Authority
- CN
- China
- Prior art keywords
- sealing
- seat
- ring seat
- stationary
- supporting sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model discloses a closed mechanical sealing device, which comprises a sealing pair arranged between a supporting sleeve and a main outer sleeve. The main outer sleeve includes a fixed ring seat and a movable ring seat, the supporting sleeve is provided with a movable ring seat, a movable sealing ring is arranged in a spigot I between the supporting sleeve and the movable ring seat, a spigot II is formed between the fixed ring seat and the supporting sleeve, a fixed sealing ring is arranged inside the spigot II, and the movable ring seat and the fixed ring seat are further provided with filling for sealing. The closed mechanical sealing device has the advantages that the supporting sleeve of the closed mechanical sealing device is provided with the movable ring seat, and the filling is further arranged in the movable ring seat and the fixed ring seat for sealing, so that the closed mechanical sealing device can prevent external impurities from reaching a sealing surface to reduce abrasion resistance of the sealing surface, prolong service life, simultaneously improve sealing effect, substantially enhance safety, reliability and durability of the mechanical sealing device, reduce equipment maintenance cost and improve integral comprehensive machine efficiency. The closed mechanical sealing device is applicable to shaft end sealing of various slurry circulation pumps and particularly suitable for mechanical sealing of high-speed circulation pumps.
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 stationary seal ring and rotary packing ring outward at present, these two seal rings all are to expose outside, owing to use the mechanical seal device in machinery equipment to be used in the non-pure media such as pump, still more, external impurities easily arrives sealing surface 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 closed type mechanical seal device that increases the service life significantly.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of closed type mechanical seal device, comprise the sealing pair that is provided with between supporting sleeve and the main overcoat, main overcoat comprises stationary seat and rotating seat, supporting sleeve is provided with rotating seat, in the seam I between supporting sleeve and the rotating seat rotary packing ring is set, form seam II between stationary seat and the supporting sleeve, in mouthful II stationary seal ring is set, rotating seat and stationary seat also are provided with the packing sealing.
Above-mentioned closed type mechanical seal device, described rotating seat and stationary seat also are provided with the packing sealing and are meant stationary seat fixed step cover, form seam III between ladder cover and the rotating seat, and the packing sealing is set in the seam III, and seam III place is provided with cover.
Above-mentioned closed type mechanical seal device, the stationary seat left side is the stationary seat flange fixedly.
Above-mentioned closed type mechanical seal device is provided with spring between stationary seat flange and the stationary seal ring.
Above-mentioned closed type mechanical seal device, stationary seat flange and stationary seat are provided with the first sparge water passage of UNICOM, stationary seat and ladder cover form an annular housing, on stationary seat, also be provided with the second sparge water passage with the seal arrangement axis normal, the first sparge water passage, annular housing and the mutual UNICOM of the second sparge water passage are provided with outside thread on the shelves cover.
Above-mentioned closed type mechanical seal device, the packing in the described packing sealing pair are charcoal fiber linea angulata graphite plate roots.
Adopt technique scheme, the utility model has following advantage: the supporting sleeve of closed type mechanical seal device is provided with rotating seat, in the seam I between supporting sleeve and the rotating seat rotary packing ring is set, form seam II between stationary seat and the supporting sleeve, in the mouth II stationary seal ring is set, rotating seat and stationary seat also are provided with the packing sealing, so just can stop extraneous foreign material to arrive sealing surface to reduce the wearing and tearing of sealing surface, increase the service life, also improved simultaneously sealing effect, significantly improve the Security of mechanical seal device, reliability and durability.Prolong mechanical seal service life significantly, reduced the maintenance expenses of equipment, improved the whole synthesis efficient of machine.The utility model is applicable to the shaft end seal of various slurry circulating pumps, is particularly suitable for the mechanical seal of Speed Circulation Pump.
Description of drawings
Fig. 1 is the utility model structural 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 closed type mechanical seal device as depicted in figs. 1 and 2, a kind of closed type mechanical seal device, comprise the sealing pair that is provided with between supporting sleeve 6 and the main overcoat, main overcoat comprises stationary seat and rotating seat, supporting sleeve 6 is provided with rotating seat 3, in the seam I between supporting sleeve and the rotating seat rotary packing ring 9 is set, form seam II between stationary seat 1 and the supporting sleeve 6, in the mouth II stationary seal ring 8 is set, rotating seat 3 also is provided with packing sealing 11 with stationary seat 1, described rotating seat 3 also is provided with packing sealing 11 with stationary seat 1 and is meant stationary seat 1 fixed step cover 2, form seam III between ladder cover 2 and the rotating seat 3, packing sealing 11 is set in the seam III, seam III place is provided with cover 4, stationary seat 1 left side is stationary seat flange 5 fixedly, be provided with spring 7 between stationary seat flange 5 and the stationary seal ring 8, stationary seat flange 5 and stationary seat 1 are provided with the first sparge water passage 12 of UNICOM, stationary seat 1 and ladder cover 2 form an annular housing 14, on stationary seat 1, also be provided with the second sparge water passage 13 with the seal arrangement axis normal, on shelves cover 3, be provided with outside thread, sparge water is by the first sparge water passage 12, annular housing 14, spiral chute on the second sparge water passage 13 and the shelves cover 3 between the outside thread arrives secondary sealing area, and the packing in the described packing sealing pair is a charcoal fiber linea angulata graphite plate root.
Claims (6)
1. closed type mechanical seal device, comprise the sealing pair that is provided with between supporting sleeve (6) and the main overcoat, main overcoat comprises stationary seat (1) and rotating seat (3), it is characterized in that: supporting sleeve (6) is provided with rotating seat (3), rotary packing ring (9) is set in the seam I between supporting sleeve and the rotating seat, form seam II between stationary seat (1) and the supporting sleeve (6), in mouthful II stationary seal ring (8) is set, rotating seat (3) also is provided with packing sealing (11) with stationary seat (1).
2. closed type mechanical seal device according to claim 1, it is characterized in that: described rotating seat (3) also is provided with packing sealing (11) with stationary seat (1) and is meant stationary seat (1) fixed step cover (2), form seam III between ladder cover (2) and the rotating seat (3), packing sealing (11) is set in the seam III, and seam III place is provided with cover (4).
3. closed type mechanical seal device according to claim 2 is characterized in that: stationary seat (1) left side is stationary seat flange (5) fixedly.
4. closed type mechanical seal device according to claim 3 is characterized in that: be provided with spring (7) between stationary seat flange (5) and the stationary seal ring (8).
5. closed type mechanical seal device according to claim 4, it is characterized in that: stationary seat flange (5) and stationary seat (1) are provided with the first sparge water passage (12) of UNICOM, stationary seat (1) and ladder cover (2) form an annular housing (14), on stationary seat (1), also be provided with the second sparge water passage (13) with the seal arrangement axis normal, the first sparge water passage (12), annular housing (14) and the second sparge water passage (13) be UNICOM mutually, is provided with outside thread on shelves cover (3).
6. closed type mechanical seal device according to claim 3 is characterized in that: the packing in the described packing sealing pair is a charcoal fiber linea angulata graphite plate root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534357U CN201772059U (en) | 2010-04-09 | 2010-04-09 | Closed mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534357U CN201772059U (en) | 2010-04-09 | 2010-04-09 | Closed mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772059U true CN201772059U (en) | 2011-03-23 |
Family
ID=43751901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201534357U Expired - Fee Related CN201772059U (en) | 2010-04-09 | 2010-04-09 | Closed mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829183A (en) * | 2012-08-13 | 2012-12-19 | 陕西长岭电子科技有限责任公司 | Large-diameter high-pressure mechanical sealing device |
-
2010
- 2010-04-09 CN CN2010201534357U patent/CN201772059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829183A (en) * | 2012-08-13 | 2012-12-19 | 陕西长岭电子科技有限责任公司 | Large-diameter high-pressure mechanical sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101832393B (en) | Vertical shaft centrifugal seal system | |
| CN104595099A (en) | Integrated tide energy power generation device | |
| CN201651315U (en) | Composite mechanical seal device | |
| CN201730815U (en) | Non-leakage sealing assembly of reciprocating plunger pump | |
| CN204647324U (en) | A kind of guide flowing type labyrinth gland | |
| CN201772059U (en) | Closed mechanical sealing device | |
| CN103401341B (en) | The box-like hermetically-sealed construction of group of motors | |
| CN205446649U (en) | Wind -driven generator gear case's end seal | |
| CN108518481B (en) | Water wheel motor main shaft seal structure | |
| CN102913460A (en) | Hot water type submersible sewage pump | |
| CN109139718A (en) | A kind of low wind speed large size double-fed Ban Zhiqu base bearing mechanism | |
| CN202228134U (en) | Steam seal of coke oven waste heat power generation steam turbine | |
| CN208900363U (en) | A kind of vertical low cavitation high security magnetic drive pump | |
| CN203352348U (en) | Motor combined-type sealing structure | |
| CN104389807B (en) | The shaft seal structure of centrifugal coal slurry pump | |
| CN104315147B (en) | A kind of power type non-contact type main shaft sealing device | |
| CN202531844U (en) | Bottom stirring corrugated pipe-type mechanical seal with water seal structure | |
| CN201425037Y (en) | Leakage-preventing sealing device for submersible sewage pump | |
| CN201671751U (en) | Mixed flow turbine main-axle combination sealing device | |
| CN204829957U (en) | Guide pulley in bearing is external | |
| CN202056082U (en) | Mineral draining pump pressure limiting sleeve mechanism | |
| CN205388148U (en) | Hydraulic turbine main shaft self -lubricating mechanical seal | |
| CN204647320U (en) | A kind of assembly type water conservancy diversion seal arrangement | |
| CN201318312Y (en) | Water-filling submersible electric pump | |
| CN201568295U (en) | Circulation flow type thick oil pump |
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: 20110323 Termination date: 20160409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |