CN109340171A - A kind of spring external anhydrous mechanical seal structure - Google Patents
A kind of spring external anhydrous mechanical seal structure Download PDFInfo
- Publication number
- CN109340171A CN109340171A CN201811408624.1A CN201811408624A CN109340171A CN 109340171 A CN109340171 A CN 109340171A CN 201811408624 A CN201811408624 A CN 201811408624A CN 109340171 A CN109340171 A CN 109340171A
- Authority
- CN
- China
- Prior art keywords
- ring
- gland
- axle sleeve
- spring
- mechanical seal
- 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.)
- Pending
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims description 5
- 238000001272 pressureless sintering Methods 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 percolate Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/22—Non-oxide ceramics
- F05D2300/226—Carbides
- F05D2300/2261—Carbides of silicon
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention provides a kind of spring external anhydrous mechanical seal structures, including axle sleeve, rotating ring, stationary ring and gland, the axle sleeve is socketed on pump shaft, the outside of described axle sleeve one end is equipped with the connector that fixed hub is equipped in drive ring and drive ring, the rotating ring and stationary ring are socketed on axle sleeve and contradict, the rotating ring is fixed on axle sleeve by fixing piece, the gland is socketed in the outside of stationary ring, the side of the gland is equipped with the throw-out collar contradicted with stationary ring, the side of the throw-out collar is equipped with the spring screw fixed for throw-out collar and gland and is socketed with the limit spring contradicted with throw-out collar on spring screw, the gland is equipped with positioning cards used for positioning far from the side of rotating ring, one end of the positioning cards is connected to axle sleeve and is fixed on gland far from sleeve end by positioning screw, compensation bullet is equipped between the throw-out collar and stationary ring Spring.Advantages of the present invention: limit spring is not easy to plug, and is easily installed and is repaired, and device versatility is good, and the service life is long.
Description
Technical field
The present invention relates to mechanical seal field, in particular to a kind of spring external anhydrous mechanical seal structure.
Background technique
Mechanical seal is perpendicular to rotation axis end face by least a pair in Fluid pressure and compensation mechanism elastic force or magnetic force
Effect and auxiliary seal cooperation under keep fit closely and constituted with respect to sliding prevent fluid leak device.
Mechanical seal is divided into that balanced type rotating ring is compensation and the compensation mechanical seal of balanced type stationary ring according to design feature,
The middle compensation mechanical seal of balanced type stationary ring contains in the medium for corroding impurity particle more suitable for conveying, but due to seal face
Since long-play is in the corrosivity operating condition containing particle, along with the good centrifugal pump of mounting and adjusting beats in operation,
The influence of play, vibration to mechanical seal, inevitably some unavoidable media are precipitated seal face, if the medium after precipitation is not
It is rinsed water in time to wash away, can accumulate in and be uniformly distributed on the small spring of compensation mechanism, cause the elastic force of spring to fail, especially
It is the conveying pulp water, percolate, paper in the industries such as thermal power generation, garbage power, petrochemical industry, papermaking, smelting, sewage treatment
The medium containing particle erosion such as slurry, desulfurization slurry, sludge, the requirement to mechanical seal are just more stringent.
Summary of the invention
For above-mentioned deficiency in the prior art, the present invention provides a kind of spring external anhydrous mechanical seal structure,
Its is compact-sized, and spring is not easy to plug, long service life, and versatility is good.
In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows:
A kind of spring external anhydrous mechanical seal structure, including axle sleeve, rotating ring, stationary ring and gland, the axle sleeve socket
On pump shaft, the outside of described axle sleeve one end, which is equipped with, to be equipped with for the connection that axle sleeve and pump shaft is fixed in drive ring and drive ring
Part, the rotating ring and stationary ring are socketed on axle sleeve and rotating ring and stationary ring contradict, and the rotating ring is blocked by axle sleeve and passed through solid
Determine part to be fixed on axle sleeve, the gland is socketed in the outside of stationary ring, and the gland is equipped with far from the side of rotating ring and supports with stationary ring
The throw-out collar of touching, the side of the throw-out collar be equipped with the spring screw fixed for throw-out collar and gland and be socketed on spring screw with
The limit spring that throw-out collar contradicts, the gland are equipped with positioning cards used for positioning, the positioning cards far from the side of rotating ring
One end be connected to axle sleeve and be fixed on gland by positioning screw far from sleeve end, set between the positioning screw and gland
There is locating pad, counterbalance spring is equipped between the throw-out collar and stationary ring.
Further, axle sleeve O-ring is equipped between the axle sleeve and pump shaft, between the rotating ring and axle sleeve and stationary ring and pressure
It is equipped with rotating ring O-ring between lid, stationary ring O-ring is equipped between the stationary ring and gland.
Further, it is trapezoidal or saw-tooth thread screw or bolt that the connector, which is teeth shape,.
Further, the fixing piece is pin or pin shaft.
Further, the quantity of the counterbalance spring is at least 2 and is uniformly distributed around pump spindle center.
Further, the gland is equipped with the through-hole for installing connection and is equipped with pad close to rotating ring side in gland
Piece.
Further, the rotating ring and stationary ring are made of the carbofrax material of a pair of identical pressureless sintering.
Further, the gasket is no asbestos pad.
The invention has the benefit that
Limit spring of the present invention not with media contact, and in the atmosphere that is exposed to completely of limit spring, convenient for observation, installation
And maintenance, suitable for conveying the medium containing particle erosion, limit spring is not easy to plug, particularly suitable for mechanical seal without flushing
It is run under the operating condition of water, water resource can be saved, dynamic and static ring uses the carbofrax material of a pair of identical pressureless sintering, versatility
It is good, to improve the service life of mechanical seal, it is equipped with sealing ring between each contact surface, can be improved the sealing of device
Property, the quantity of counterbalance spring is at least 2 and is uniformly distributed around pump spindle center, can compensate to the power of limit spring, mentions
The high compactness of dynamic and static ring, connector are that teeth shape is trapezoidal or saw-tooth thread screw or bolt, are easy to obtain, pass
It is dynamic steady.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
The appended drawing reference table of comparisons:
1- axle sleeve O-ring, 2- rotating ring, 3- stationary ring, 4- throw-out collar, 5- axle sleeve, 6- connector, 7- drive ring, 8- fixing piece, 9-
Rotating ring O-ring, 10- stationary ring O-ring, 11- limit spring, 12- spring screw, 13- gasket, 14- gland, 15- locating pad, 16-
Positioning screw, 17- positioning cards, 18- counterbalance spring.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.Wherein identical components are with identical
Appended drawing reference indicates.
It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
Direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
In order that the present invention can be more clearly and readily understood, following will be combined with the drawings in the embodiments of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.
As shown in Figure 1, a kind of spring external anhydrous mechanical seal structure, including axle sleeve 5, rotating ring 2, stationary ring 3 and gland
14, the axle sleeve 5 is socketed on pump shaft, and the outside of described 5 one end of axle sleeve, which is equipped in drive ring 7 and drive ring 7, to be equipped with for will
The connector 6 that axle sleeve 5 and pump shaft are fixed, the rotating ring 2 and stationary ring 3 are socketed on axle sleeve 5 and rotating ring 2 and stationary ring 3 contradict, institute
It states rotating ring 2 to block by axle sleeve 5 and be fixed on axle sleeve 5 by fixing piece 8, the gland 14 is socketed in the outside of stationary ring 3, institute
State gland 14 and be equipped with the throw-out collar 4 that contradicts with stationary ring 3 far from the side of rotating ring 2, the side of the throw-out collar 4 be equipped with for throw-out collar 4 and
The fixed spring screw 12 of gland 14 and the limit spring 11 contradicted with throw-out collar 4, the gland are socketed on spring screw 12
14 sides far from rotating ring 2 are equipped with positioning cards 17 used for positioning, and one end of the positioning cards 17 is connected to axle sleeve 5 and remote
5 ends of off-axis set are fixed on gland 14 by positioning screw 16, and locating pad 15 is equipped between the positioning screw 16 and gland 14,
Counterbalance spring 18 is equipped between the throw-out collar 4 and stationary ring 3.
Axle sleeve O-ring 1 is equipped between the axle sleeve 5 and pump shaft, between the rotating ring 2 and axle sleeve 5 and stationary ring 3 and gland 14
Between be equipped with rotating ring O-ring 9, between the stationary ring 3 and gland 14 be equipped with stationary ring O-ring 10.
The connector 6 is that teeth shape is trapezoidal or saw-tooth thread screw or bolt.
The fixing piece 8 is pin or pin shaft.
The quantity of the counterbalance spring 18 is at least 2 and is uniformly distributed around pump spindle center.
The gland 14 is equipped with the through-hole for installing connection and is equipped with gasket 13 close to 2 side of rotating ring in gland 14.
The rotating ring 2 and stationary ring 3 are made of the carbofrax material of a pair of identical pressureless sintering.
The gasket 13 is no asbestos pad.
Working principle:
The present invention by the connector 6 on drive ring 7 by the fixed pump shaft of mechanical seal sleeve 5, when pump shaft high speed rotation,
So that mechanical seal sleeve 5 drives rotating ring 2 to rotate, stationary ring 3 pushes the effect of throw-out collar 4 and Fluid pressure in limit spring 11
Lower and 2 moment of rotating ring keeps fit-state, and relies on limit spring 11 and the pressure of sealing medium in the rotating ring 2 and stationary ring of rotation
3 contact surface generates pressing force appropriate, fits closely the two end faces.The atmosphere that limit spring 11 is exposed to completely
In be not easy the filter medium clogging being compromised, in addition rotating ring 2 and stationary ring 3 are the carbofrax materials using a pair of identical pressureless sintering,
Versatility is good, effectively improves the wearability of dynamic and static ring, so that the service life of mechanical seal is improved, 18 energy of counterbalance spring
It is enough that elastic force is compensated, improve compactness.
The above description is only a preferred embodiment of the patent of the present invention, is not intended to limit the invention patent, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the invention patent within the spirit and principle of patent of invention
Protection scope within.
Claims (8)
1. a kind of spring external anhydrous mechanical seal structure, including axle sleeve (5), rotating ring (2), stationary ring (3) and gland (14),
It is characterized in that, the axle sleeve (5) is socketed on pump shaft, and the outside of described axle sleeve (5) one end is equipped with drive ring (7) and drive ring
(7) it is equipped in for the connector (6) that axle sleeve (5) and pump shaft are fixed, the rotating ring (2) and stationary ring (3) are socketed in axle sleeve
(5) on and rotating ring (2) and stationary ring (3) contradict, and the rotating ring (2) is blocked by axle sleeve (5) and is fixed on axis by fixing piece (8)
Cover on (5), the gland (14) is socketed in the outside of stationary ring (3), the gland (14) far from the side of rotating ring (2) be equipped with it is quiet
The throw-out collar (4) that ring (3) contradicts, the side of the throw-out collar (4) are equipped with the spring screw fixed for throw-out collar (4) and gland (14)
(12) and on spring screw (12) it is socketed with the limit spring (11) contradicted with throw-out collar (4), the gland (14) is far from rotating ring
(2) side is equipped with positioning cards used for positioning (17), and one end of the positioning cards (17) is connected to axle sleeve (5) and separate
Axle sleeve (5) end is fixed on gland (14) by positioning screw (16), is equipped between the positioning screw (16) and gland (14)
Locating pad (15) is equipped with counterbalance spring (18) between the throw-out collar (4) and stationary ring (3).
2. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the axle sleeve
(5) it is equipped with axle sleeve O-ring (1) between pump shaft, between the rotating ring (2) and axle sleeve (5) and between stationary ring (3) and gland (14)
Equipped with rotating ring O-ring (9), stationary ring O-ring (10) are equipped between the stationary ring (3) and gland (14).
3. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the connector
It (6) be teeth shape is trapezoidal or saw-tooth thread screw or bolt.
4. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the fixing piece
It (8) is pin or pin shaft.
5. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the compensation bullet
The quantity of spring (18) is at least 2 and is uniformly distributed around pump spindle center.
6. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the gland
(14) it is equipped with the through-hole for installing connection and is equipped with gasket (13) close to rotating ring (2) side in gland (14).
7. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the rotating ring
(2) it is made with stationary ring (3) of the carbofrax material of a pair of identical pressureless sintering.
8. a kind of spring external anhydrous mechanical seal structure according to claim 6, it is characterised in that: the gasket
It (13) is no asbestos pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408624.1A CN109340171A (en) | 2018-11-23 | 2018-11-23 | A kind of spring external anhydrous mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408624.1A CN109340171A (en) | 2018-11-23 | 2018-11-23 | A kind of spring external anhydrous mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340171A true CN109340171A (en) | 2019-02-15 |
Family
ID=65317488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811408624.1A Pending CN109340171A (en) | 2018-11-23 | 2018-11-23 | A kind of spring external anhydrous mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340171A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022316A (en) * | 2019-12-26 | 2020-04-17 | 宁波伏尔肯科技股份有限公司 | Mechanical sealing device for rotor pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658427A (en) * | 1992-08-06 | 1994-03-01 | Mitsubishi Heavy Ind Ltd | Shaft sealing device |
| CN203604243U (en) * | 2013-11-08 | 2014-05-21 | 江苏大唐国际吕四港发电有限责任公司 | Anhydrous mechanical sealing structure for desulfuration slurry circulating pump |
| CN204677490U (en) * | 2015-05-11 | 2015-09-30 | 四川大禹机械密封件制造有限公司 | gas-liquid two-phase fluid mechanical seal device |
| CN107435654A (en) * | 2017-07-28 | 2017-12-05 | 丹东克隆集团有限责任公司 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
| CN209129919U (en) * | 2018-11-23 | 2019-07-19 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
-
2018
- 2018-11-23 CN CN201811408624.1A patent/CN109340171A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658427A (en) * | 1992-08-06 | 1994-03-01 | Mitsubishi Heavy Ind Ltd | Shaft sealing device |
| CN203604243U (en) * | 2013-11-08 | 2014-05-21 | 江苏大唐国际吕四港发电有限责任公司 | Anhydrous mechanical sealing structure for desulfuration slurry circulating pump |
| CN204677490U (en) * | 2015-05-11 | 2015-09-30 | 四川大禹机械密封件制造有限公司 | gas-liquid two-phase fluid mechanical seal device |
| CN107435654A (en) * | 2017-07-28 | 2017-12-05 | 丹东克隆集团有限责任公司 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
| CN209129919U (en) * | 2018-11-23 | 2019-07-19 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022316A (en) * | 2019-12-26 | 2020-04-17 | 宁波伏尔肯科技股份有限公司 | Mechanical sealing device for rotor pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |
|
| RJ01 | Rejection of invention patent application after publication |