CN102003402A - Integrated double mechanical sealing device - Google Patents
Integrated double mechanical sealing device Download PDFInfo
- Publication number
- CN102003402A CN102003402A CN 201010606616 CN201010606616A CN102003402A CN 102003402 A CN102003402 A CN 102003402A CN 201010606616 CN201010606616 CN 201010606616 CN 201010606616 A CN201010606616 A CN 201010606616A CN 102003402 A CN102003402 A CN 102003402A
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- China
- Prior art keywords
- seal
- gland
- ring
- bellows
- welded
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Abstract
The invention relates to an integrated double mechanical sealing device. In the sealing device, a moving ring component is arranged on one end of a shaft sleeve; one end of the moving ring component is welded with a static ring component; one end of the static ring component 3 is welded with a bellows; one end of the bellows is welded on an inner gland; a spring moving ring is arranged on the inside shaft sleeve of the inner gland, a static ring is arranged on the outside of the spring moving ring; the static ring is arranged on an outer gland; and a water inlet and a water outlet are separately formed on the inner and outer glands. The bellows seal is in serial connection with the spring moving ring seal; the bellows seal withstands high temperature, high pressure and medium corrosion in the pump cavity; and the spring moving ring seal is arranged on one side of the pump cover to seal the pressure medium and the pressurized cooling water. The static ring bellows component of the ring seat is not directly welded with a front gland, thus reducing one seal point. A back gland is added and the lip type rubber seal is not adopted. The water inlet and the water outlet are arranged on the glands. The cooling water is pressurized to circulate and the seal faces are fully cooled. The sealing operation is ensured to be characterized by environmental protection, energy-saving, high temperature, safety and long service life.
Description
Technical field
The present invention relates to a kind of mechanical seal device, relate to a kind of double end-face mechanical sealing device specifically.
Background technique
For mechanical seal, must be according to the structure of different operating mode (medium, temperature, pressure) design mechanical seal.Existing mechanical sealing configuration form is a lot, as bellows mechanical seal, spring mechanical sealing, single mechanical end face seal, double mechanical seal etc., though have certain sealing effect, all can not have the performance of environmental protection, energy-conservation, high temperature, safety simultaneously.For example mechanical seal device for rubber bellows is the higher mechanical seal device of developing in recent years of serviceability temperature, but behind the rotating ring stationary ring end wear, produce when leaking, pumped medium can be from lip formula rubber seal jet flow on the bearing housing or board of pump, and security incident especially very easily takes place when medium is poisonous, combustible material in the waste that causes material.In addition, seal face is cooled off, need to inject cooling water, by the liquid property decision, cooling water can only be charged to the shaft centre line position, if cooling water is pressurizeed, cooling water will flow out from the rubber seal of lip formula, so seal face can not get cooling off fully, descend to sealing life.
Summary of the invention
At the defective that existing double end-face mechanical sealing device exists, the invention provides a kind of have high temperature resistant, safe in utilization, the double end-face mechanical sealing device of environmental protection and energy saving.
Solving the problems of the technologies described above the concrete technical measures of being taked is: a kind of unit loading type double end-face mechanical sealing device, comprise stationary ring and moving ring assembly, it is characterized in that: moving ring assembly (2) is housed at axle sleeve (1) one end, moving ring assembly (2) one ends welding static components (3), static components (3) one end welded bellowss (4), bellows (4) one ends are welded on the internal gland (5), spring rotating ring (6) is housed on the inboard axle sleeve of internal gland (5) (1), connect stationary ring (7) one ends in spring rotating ring (6) outside, stationary ring (7) the other end is connected with outer gland (10), right-hand member at axle sleeve (1) is equipped with O RunddichtringO (8), polytetrafluoroethylsealed sealed circle (9) is housed on the right-hand member head of axle sleeve (1), on internal gland, be shaped on water intake (12) and water outlet (14), be shaped on water intake (13) and water outlet (15) outside on the gland.
Beneficial effect of the present invention: sylphon seal is connected with the sealing of spring rotating ring, and sylphon seal is born High Temperature High Pressure, is born dielectric corrosion in pump chamber, and the spring rotating ring is sealed in pump cover one side sealing base pressure medium and cooling water pressure is arranged.Direct and the internal gland welding of the stationary ring bellows component of cancellation ring seat reduces by a seal point.Be provided with outer gland, the rubber seal of cancellation lip formula.On gland, be shaped on water outlet.Cooling water is carried out pressurizing circulation, fully the coolant seal end face.Double seals structure of the present invention is guaranteed sealing operation environmental protection, energy-conservation, high temperature, safety, long service life.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Be described with reference to the accompanying drawings structure of the present invention.
A kind of unit loading type double end-face mechanical sealing device, as shown in Figure 1, be screwed moving ring assembly 2 at axle sleeve 1 one ends, moving ring assembly 2 is to inlay with heat rotating ring is embedded in the ring seat, moving ring assembly 2 one ends welding static components 3, static components 3 is with hot mosaic technology stationary ring to be embedded in the stationary seat, static components 3 one end welded bellowss 4, bellows 4 one ends are welded on the internal gland 5, on internal gland 5 inboard axle sleeves 1 with end face positioning key mounting spring rotating ring 6, connect stationary ring 7 one ends in spring rotating ring 6 outsides, stationary ring 7 the other ends are installed on the outer gland 10 with end face location Xiao, at 20 millimeters places of right-hand member of axle sleeve 1 O RunddichtringO 8 are housed, polytetrafluoroethylsealed sealed circle 9 is housed on the right-hand member head of axle sleeve 1,, on internal gland, be shaped on water intake 12 and water outlet 14, be shaped on water intake 13 and water outlet 15 outside on the gland.
This cover seal arrangement is formed first seal face by moving ring assembly 2, stationary ring bellows component 3, forms second seal face by spring rotating ring 6, stationary ring 7.Bellows is formed with MICROBEAM PLASMA WELDING by stamping forming wave plate, uses MICROBEAM PLASMA WELDING and stationary seat composition stationary ring welded together bellows component again, during use axle sleeve 1 usefulness retaining ring 11 is installed on the pump shaft.
Double seals is not only single-end sealed repetition, in some emphasis occasions of Chemical Manufacture, can prevent the leakage of danger, poisonous, flammable and explosive substance, and safety effect is arranged.When being used for high-pressure medium, can reasonably distribute the two ends pressure reduction of each sealing, improve the range of working pressure of sealing.To some lubricated bad media, the medium that easily condenses, vaporizes by adding the antifreeze liquid of cooling, lubricant oil, low temperature between sealing, can improve the operating mode of sealing, improves the working life of sealing.The water intake 13 that cooling water is covered by water intake on the internal gland 12 and external pressure respectively during work is injected with the cooling water of pressure, and first seal face and second seal face are carried out the brute force cooling.Cooling water is stopped by second seal face, and the water outlet that can only increase on the gland of front and back flows back to cooling system, can not leak.Guarantee sealing operation environmental protection, energy-conservation, high temperature, safety, longevity.
Claims (1)
1. unit loading type double end-face mechanical sealing device, comprise stationary ring and moving ring assembly, it is characterized in that: moving ring assembly (2) is housed at axle sleeve (1) one end, moving ring assembly (2) one ends welding static components (3), static components (3) one end welded bellowss (4), bellows (4) one ends are welded on the internal gland (5), spring rotating ring (6) is housed on the inboard axle sleeve of internal gland (5) (1), connect stationary ring (7) one ends in spring rotating ring (6) outside, stationary ring (7) the other end is connected with outer gland (10), right-hand member at axle sleeve (1) is equipped with O RunddichtringO (8), polytetrafluoroethylsealed sealed circle (9) is housed on the right-hand member head of axle sleeve (1), on internal gland, be shaped on water intake (12) and water outlet (14), be shaped on water intake (13) and water outlet (15) outside on the gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010606616 CN102003402A (en) | 2010-12-27 | 2010-12-27 | Integrated double mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010606616 CN102003402A (en) | 2010-12-27 | 2010-12-27 | Integrated double mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003402A true CN102003402A (en) | 2011-04-06 |
Family
ID=43811028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010606616 Pending CN102003402A (en) | 2010-12-27 | 2010-12-27 | Integrated double mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003402A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2544512A (en) * | 2015-11-19 | 2017-05-24 | Aes Eng Ltd | 2-part clamping ring method |
| CN112324913A (en) * | 2020-11-05 | 2021-02-05 | 开平市龙桥气动密封件有限公司 | Mechanical sealing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2171023Y (en) * | 1993-07-31 | 1994-07-06 | 昃长利 | Mechanical seal for double end short driving seating pump |
| CN2204358Y (en) * | 1994-04-06 | 1995-08-02 | 丹东市波纹管机械密封厂 | Bellows mechanical sealing for petro-chemical pump |
| EP1087144A2 (en) * | 1999-09-23 | 2001-03-28 | Cryomec AG | Tandem mechanical seal for cryogenic pumps |
| CN201027688Y (en) * | 2007-04-02 | 2008-02-27 | 陕西波世特石化机封制造有限公司 | Packaging type welded metal-bellows mechanical seal used for slurry pump in aluminum industry |
| CN201335032Y (en) * | 2008-12-11 | 2009-10-28 | 兰州理工大学 | Combined seal device used on shaft end of light hydrocarbon pump |
-
2010
- 2010-12-27 CN CN 201010606616 patent/CN102003402A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2171023Y (en) * | 1993-07-31 | 1994-07-06 | 昃长利 | Mechanical seal for double end short driving seating pump |
| CN2204358Y (en) * | 1994-04-06 | 1995-08-02 | 丹东市波纹管机械密封厂 | Bellows mechanical sealing for petro-chemical pump |
| EP1087144A2 (en) * | 1999-09-23 | 2001-03-28 | Cryomec AG | Tandem mechanical seal for cryogenic pumps |
| CN201027688Y (en) * | 2007-04-02 | 2008-02-27 | 陕西波世特石化机封制造有限公司 | Packaging type welded metal-bellows mechanical seal used for slurry pump in aluminum industry |
| CN201335032Y (en) * | 2008-12-11 | 2009-10-28 | 兰州理工大学 | Combined seal device used on shaft end of light hydrocarbon pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2544512A (en) * | 2015-11-19 | 2017-05-24 | Aes Eng Ltd | 2-part clamping ring method |
| GB2546375A (en) * | 2015-11-19 | 2017-07-19 | Aes Eng Ltd | 2-par clamp ring method |
| GB2546375B (en) * | 2015-11-19 | 2019-03-27 | Aes Eng Ltd | 2-part clamping ring method |
| CN112324913A (en) * | 2020-11-05 | 2021-02-05 | 开平市龙桥气动密封件有限公司 | Mechanical sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110406 |