CN106763782A - A kind of buffer fluid flowage structure of mechanical seal - Google Patents
A kind of buffer fluid flowage structure of mechanical seal Download PDFInfo
- Publication number
- CN106763782A CN106763782A CN201710169476.1A CN201710169476A CN106763782A CN 106763782 A CN106763782 A CN 106763782A CN 201710169476 A CN201710169476 A CN 201710169476A CN 106763782 A CN106763782 A CN 106763782A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- seat
- stationary ring
- ring
- rotating
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
Abstract
A kind of buffer fluid flowage structure of mechanical seal disclosed by the invention, including axle sleeve, the first stationary seat, rotating seat, the second stationary seat are sequentially provided with axle sleeve, axle sleeve outer wall is additionally provided with the housing coordinated with axle sleeve socket, first stationary ring and the first rotating ring cooperatively form media end friction pair, and the second stationary ring and the second rotating ring cooperatively form atmosphere end friction pair；Also include external seal chamber, circular passage and interior sealing chamber, first rotating ring is provided with the helicla flute connected with interior sealing chamber with the axle sleeve place of offseting, some first through hole for being circumferentially distributed and connecting circular passage and external seal chamber are provided with axle sleeve, some the second through holes for being circumferentially distributed and connecting circular passage and interior sealing chamber are additionally provided with axle sleeve, first through hole is different with the external diameter at axle sleeve position residing for the second through hole.Simple and reasonable, good cooling results are convenient to use, reduce cost.
Description
Technical field
The present invention relates to technical field of mechanical, the buffer fluid flowage structure of more particularly to a kind of mechanical seal.
Background technology
Mechanical seal refer to by least one pair of perpendicular to rotation axis end face in Fluid pressure and compensation mechanism elastic force（Or
Magnetic force）In the presence of and the cooperation of auxiliary seal under keep laminating and constituted with respect to slip prevent fluid leak dress
Put.Mechanical seal is a kind of gland seal device of rotating machinery, such as the equipment such as centrifugal pump, centrifuge, reactor and compressor.By
It is applied in inside and outside equipment in power transmission shaft, so, there is a circumferential clearance between axle and equipment, between the medium in equipment is by being somebody's turn to do
Gap is leaked out, if pressure subatmospheric in equipment, air is to equipment internal leakage, it is therefore necessary to have one to prevent leakage
Gland seal device.Common mechanical seal is all to realize sealing by offseting friction between rotating ring and stationary ring, in the high speed of axle
Rub the substantial amounts of heat of generation in operating, between rotating ring and stationary ring, and frictional force between rotating ring and stationary ring is also increasingly
Greatly, the damage for being caused to rotating ring and stationary ring is very big.Generally require and inject buffer fluid to rotating ring and quiet by mechanical seal
Ring is realized cooling and is lubricated, but the structure of existing mechanical seal cooling and lubrication is complex, while needing to set circulation
Pump installation, it is relatively costly.
The content of the invention
In view of the shortcomings of the prior art and defect, the present invention provides a kind of buffer fluid flowage structure of mechanical seal, its
Simple and reasonable, good cooling results are convenient to use, reduce cost.
To achieve the above object, the present invention uses following technical scheme.
A kind of buffer fluid flowage structure of mechanical seal, including axle sleeve, are sequentially provided with the first stationary seat, move on axle sleeve
Ring seat, the second stationary seat, axle sleeve outer wall are additionally provided with the housing coordinated with axle sleeve socket, are provided with first on the first stationary seat quiet
The first rotating ring being engaged with the first stationary ring is provided with ring, rotating seat, the second stationary ring is provided with the second stationary seat, on housing
The second rotating ring being engaged with the second stationary ring is provided with, the first stationary ring and the first rotating ring cooperatively form media end friction pair, second
Stationary ring and the second rotating ring cooperatively form atmosphere end friction pair, and the first stationary seat and the second stationary seat are fixedly connected on axle sleeve, move
Ring seat is fixedly connected on housing；
External seal chamber is formed between second stationary seat, rotating seat, atmosphere end friction pair and housing, ring is formed between axle sleeve and axle
Shape passage, forms interior sealing chamber between media end friction pair and axle sleeve, the first rotating ring is provided with and interior sealing with the axle sleeve place of offseting
The helicla flute of chamber connection, is provided with some first through hole for being circumferentially distributed and connecting circular passage and external seal chamber on axle sleeve,
Some the second through holes for being circumferentially distributed and connecting circular passage and interior sealing chamber, first through hole and second are additionally provided with axle sleeve
The external diameter at axle sleeve position residing for through hole is different.
Further, rotating seat and housing are provided through on rotating seat and housing goes out head piece, goes out head piece and helicla flute
Connection.
Further, the flow inlet connected with external seal chamber is provided with housing.
Further, the third through-hole of connection external seal chamber and first through hole is additionally provided with rotating seat.
Further, between the first stationary seat and axle sleeve, between the second stationary seat and axle sleeve, between rotating seat and housing
It is fixedly connected by holding screw.
Compared with prior art, beneficial effects of the present invention are：Buffer fluid flowage structure of the invention is only provided with appearance
Device and refrigerating function, are not provided with circulating pumping installations, by the first through hole and axle residing for the second through hole of circle distribution on axle sleeve
The aperture difference at position is covered, centrifugation small impeller effect, then the helicla flute by being set between axle sleeve and the first rotating ring, shape is formed
Into the effect of helicoidal pump, the superposition of pumping effect twice constitutes the voluntarily circulation of buffer fluid.It is simple and reasonable, cooling effect
It is really good, it is convenient to use, reduce cost.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
In Fig. 1,1 axle sleeve, 2 first stationary seats, 3 rotating seats, 4 second stationary seats, 5 housings, 6 media end friction pairs, 7 air
End friction pair, 8 external seal chambers, 9 interior sealing chambers, 10 holding screws, 11 circular passages, 12 helicla flutes, 13 first through hole, 14 second
Through hole, 31 third through-holes, 51 go out head piece, 52 flow inlets, 61 first stationary rings, 62 first rotating rings, 71 second stationary rings, 72 second move
Ring.
Specific embodiment
The present invention is further explained with reference to accompanying drawing.
A kind of buffer fluid flowage structure of mechanical seal as shown in Figure 1, including axle sleeve 1, are sequentially provided with axle sleeve 1
First stationary ring 61 2, rotating seat 3, the second stationary ring 71 4, the outer wall of axle sleeve 1 are additionally provided with the housing 5 coordinated with the socket of axle sleeve 1,
First rotating ring for being provided with first stationary ring 61 being engaged is provided with the first stationary ring 61, rotating seat 3 on first stationary ring 61 2
62, the second stationary ring 71 is provided with the second stationary ring 71 4, the second rotating ring being engaged with the second stationary ring 71 is provided with housing 5
72, the first stationary ring 61 and the first rotating ring 62 cooperatively form media end friction pair 6, and the second stationary ring 71 and the second rotating ring 72 are cooperatively formed
Atmosphere end friction pair 7, the first stationary ring 61 2 and the second stationary ring are fixedly connected on axle sleeve 1 for 71 4, and rotating seat 3 is fixedly connected on
On housing 5；
Second stationary ring 71 4, formation external seal chamber 8 between rotating seat 3, atmosphere end friction pair 7 and housing 5, between axle sleeve 1 and axle
Circular passage 11 is formed with, interior sealing chamber 9 is formed between media end friction pair 6 and axle sleeve 1, the first rotating ring 62 offsets with axle sleeve 1
Place is provided with the helicla flute 12 connected with interior sealing chamber 9, and some circumferentially distribution and connection circular passage 11 is provided with axle sleeve 1
With the first through hole 13 in external seal chamber 8, some circumferentially distribution and connection circular passage 11 and interior sealing is additionally provided with axle sleeve 1
Second through hole 14 in chamber 9, first through hole 13 is different with the external diameter at the position of axle sleeve 1 residing for the second through hole 14.
Buffer fluid flowage structure of the invention is only provided with container and refrigerating function, is not provided with circulating pumping installations, according to
By circle distribution on axle sleeve 1 the through hole 14 of first through hole 13 and second residing for the position of axle sleeve 1 aperture difference, formed centrifugation leaflet
Wheel effect, then the helicla flute 12 by being set between the rotating ring 62 of axle sleeve 1 and first, form the effect of helicoidal pump, pump twice
The superposition of effect, constitutes the voluntarily circulation of buffer fluid.
Buffer fluid is flowed into from external seal chamber 8, and buffer fluid flows into axle and axle sleeve by first through hole 13 from external seal chamber 8
Circular passage 11 between 1, so that external seal chamber 8 is hydraulically full, it is ensured that effective cooling of atmosphere end friction pair 7 and lubrication.
From the buffer fluid that circular passage 11 flows into, via some second through holes 14 on axle sleeve 1, in the effect of centrifugal force
Under, cast to the inner side of media end friction pair 6, enhance cooling and lubricant effect.
Rotating seat 3 and housing 5 are provided through on rotating seat 3 and housing 5 goes out head piece 51, goes out head piece 51 and helicla flute 12
Connection, the buffer fluid in interior sealing chamber 9 flows out from third through-hole 31, has taken away the heat that a large amount of frictions are produced, and makes annular seal space
Temperature is remained within the scope of appropriate.
The flow inlet 52 connected with external seal chamber 8 is provided with housing 5, buffer fluid is added by the way that flow inlet 52 is convenient.
The third through-hole 31 of connection external seal chamber 8 and first through hole 13 is additionally provided with rotating seat 3, makes structure more whole
Body.
First stationary ring 61 2 is and axle sleeve 1 between, the second stationary ring 71 4 is and axle sleeve 1 between, between rotating seat 3 and housing 5
It is fixedly connected by holding screw 10, facilitates the installation and removal of each part.
Embodiment described above is not intended to limit the invention, for a person skilled in the art, of the invention
Equivalent is carried out to which part technical characteristic within spirit and principle, be should be included within the scope of the present invention.
Claims (5)
1. the buffer fluid flowage structure of a kind of mechanical seal, it is characterised in that：Including axle sleeve（1）, axle sleeve（1）On sequentially set
There is the first stationary ring（61）Seat（2）, rotating seat（3）, the second stationary ring（71）Seat（4）, axle sleeve（1）Outer wall is additionally provided with and axle sleeve（1）
It is socketed the housing for coordinating（5）, the first stationary ring（61）Seat（2）On be provided with the first stationary ring（61）, rotating seat（3）On be provided with and
One stationary ring（61）The first rotating ring being engaged（62）, the second stationary ring（71）Seat（4）On be provided with the second stationary ring（71）, housing（5）
On be provided with and the second stationary ring（71）The second rotating ring being engaged（72）, the first stationary ring（61）With the first rotating ring（62）Cooperatively form
Media end friction pair（6）, the second stationary ring（71）With the second rotating ring（72）Cooperatively form atmosphere end friction pair（7）, the first stationary ring
（61）Seat（2）With the second stationary ring（71）Seat（4）It is fixedly connected on axle sleeve（1）On, rotating seat（3）It is fixedly connected on housing（5）On；
Second stationary ring（71）Seat（4）, rotating seat（3）, atmosphere end friction pair（7）And housing（5）Between form external seal chamber（8）,
Axle sleeve（1）Circular passage is formed between axle（11）, media end friction pair（6）With axle sleeve（1）Between form interior sealing chamber
（9）, the first rotating ring（62）With axle sleeve（1）The place of offseting is provided with and interior sealing chamber（9）The helicla flute of connection（12）, axle sleeve（1）On
It is provided with some circumferentially distribution and connection circular passage（11）With external seal chamber（8）First through hole（13）, axle sleeve（1）It is upper to go back
It is provided with some circumferentially distribution and connection circular passage（11）With interior sealing chamber（9）The second through hole（14）, first through hole
（13）With the second through hole（14）Residing axle sleeve（1）The external diameter at position is different.
2. the buffer fluid flowage structure of a kind of mechanical seal according to claim 1, it is characterised in that：Rotating seat（3）
And housing（5）On be provided through rotating seat（3）And housing（5）Go out head piece（51）, go out head piece（51）With helicla flute（12）Even
It is logical.
3. the buffer fluid flowage structure of a kind of mechanical seal according to claim 1, it is characterised in that：Housing（5）On
It is provided with and external seal chamber（8）The flow inlet of connection（52）.
4. the buffer fluid flowage structure of a kind of mechanical seal according to claim 1, it is characterised in that：Rotating seat（3）
On be additionally provided with connection external seal chamber（8）And first through hole（13）Third through-hole（31）.
5. the buffer fluid flowage structure of a kind of mechanical seal according to claim 1, it is characterised in that：First stationary ring
（61）Seat（2）With axle sleeve（1）Between, the second stationary ring（71）Seat（4）With axle sleeve（1）Between, rotating seat（3）With housing（5）Between
Pass through holding screw（10）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169476.1A CN106763782B (en) | 2017-03-21 | 2017-03-21 | A kind of buffer fluid flowage structure of mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169476.1A CN106763782B (en) | 2017-03-21 | 2017-03-21 | A kind of buffer fluid flowage structure of mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106763782A true CN106763782A (en) | 2017-05-31 |
| CN106763782B CN106763782B (en) | 2018-09-21 |
Family
ID=58966351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710169476.1A Expired - Fee Related CN106763782B (en) | 2017-03-21 | 2017-03-21 | A kind of buffer fluid flowage structure of mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106763782B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401616A (en) * | 2017-07-28 | 2017-11-28 | 丹东克隆集团有限责任公司 | Nuclear power low pressure safety injection pump mechanically-sealing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020109302A1 (en) * | 2001-02-09 | 2002-08-15 | Eagle Industry Co., Ltd. | Shaft seal device |
| CN203770645U (en) * | 2014-01-06 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Two-end-surface mechanical seal device |
| JP2015161375A (en) * | 2014-02-27 | 2015-09-07 | 三菱重工業株式会社 | Underwater equipment shaft seal device and underwater equipment including same |
| JP2015183790A (en) * | 2014-03-25 | 2015-10-22 | 株式会社タンケンシールセーコウ | mechanical seal |
| CN205534220U (en) * | 2016-03-09 | 2016-08-31 | 宁波安铱矢密封有限公司 | Bi -polar face formula fixed water conservancy diversion convection current seal of getting ready |
-
2017
- 2017-03-21 CN CN201710169476.1A patent/CN106763782B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020109302A1 (en) * | 2001-02-09 | 2002-08-15 | Eagle Industry Co., Ltd. | Shaft seal device |
| CN203770645U (en) * | 2014-01-06 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Two-end-surface mechanical seal device |
| JP2015161375A (en) * | 2014-02-27 | 2015-09-07 | 三菱重工業株式会社 | Underwater equipment shaft seal device and underwater equipment including same |
| JP2015183790A (en) * | 2014-03-25 | 2015-10-22 | 株式会社タンケンシールセーコウ | mechanical seal |
| CN205534220U (en) * | 2016-03-09 | 2016-08-31 | 宁波安铱矢密封有限公司 | Bi -polar face formula fixed water conservancy diversion convection current seal of getting ready |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401616A (en) * | 2017-07-28 | 2017-11-28 | 丹东克隆集团有限责任公司 | Nuclear power low pressure safety injection pump mechanically-sealing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106763782B (en) | 2018-09-21 |
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| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |