CN106678372A - Magnetic liquid sealing device suitable for reaction kettle - Google Patents
Magnetic liquid sealing device suitable for reaction kettle Download PDFInfo
- Publication number
- CN106678372A CN106678372A CN201610953013.XA CN201610953013A CN106678372A CN 106678372 A CN106678372 A CN 106678372A CN 201610953013 A CN201610953013 A CN 201610953013A CN 106678372 A CN106678372 A CN 106678372A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- pole shoe
- sealing ring
- stationary
- 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
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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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention provides a magnetic liquid sealing device suitable for a reaction kettle, and belongs to the field of sealing for mechanical engineering. By adoption of the magnetic liquid sealing device suitable for the reaction kettle, the problems that when an existing magnetic liquid sealing device is applied to the reaction kettle, due to the corrosion effect of organic solvent vapor in the reaction kettle on magnetic liquid, the sealing device is short in life and prone to failing are solved. The magnetic liquid sealing device suitable for the reaction kettle is composed of a magnetic liquid sealing assembly, a movable ring (20), static rings and a positioning ring (8). When the magnetic liquid sealing device is used for sealing the reaction kettle, pole shoe cooling liquid is injected into a hole A1 and a hole B1 in a shell (1) continuously, and static ring cooling liquid is injected into a hole C1, a hole D1 and a hole E1 continuously. The static rings are made of materials with good thermal conductivity, the static ring cooling liquid can efficiently cool the static rings, and thus the liquefying efficiency of organic solvent vapor is improved. Sealing teeth are formed on the inner circle of the first static ring (2), sealing teeth are formed on the lower end face of the second static ring (6), and thus liquefaction of the organic solvent vapor is facilitated. By adoption of the magnetic liquid sealing device suitable for the reaction kettle, the problem that due to the corrosion effect of the organic solvent vapor on magnetic liquid, the sealing device is short in life is successfully solved.
Description
Technical field
The invention belongs to sealing field of mechanical engineering, it is adaptable to reactor magnetic fluid sealing.
Background technology
The advantages of magnetic fluid sealing is because of its zero leakage, long-life, low friction is used widely.Use on reactor
When, due to corrosiveness of the organic vapor to magnetic liquid in reactor, cause sealing device short life, easily failure；Together
When due to belonging to high-temperature space in reactor, pole shoe has chiller, and temperature is relatively low, and organic vapor is easily in pole shoe upper liquid
Change, accelerate the failure of magnetic liquid, cause seal failure.Existing magnetic fluid seal device such as application publication number CN
A kind of magnetic liquid rotating sealing device that 102182830A is announced, it is close that described device is provided with Mazy spiral on the endoporus of end cap
Sealing groove, this design is unable to corrosion of the blocking harmful gas medium to magnetic liquid, and effect is bad.
The content of the invention
The technical problem to be solved in the invention is, when existing magnetic liquid rotating sealing device is used on reactor,
Because organic vapor has corrosiveness to magnetic liquid in reactor, cause magnetic fluid sealing short life, easily failure.
Propose a kind of magnetic fluid seal device suitable for reactor.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of magnetic fluid seal device suitable for reactor, constituting the device includes：Shell, the first stationary ring, first
The sealing ring of stationary ring first, first the second sealing ring of stationary ring, second the first sealing ring of stationary ring, the second stationary ring, the second stationary ring second are close
Seal, locating ring, first the first sealing ring of pole shoe, the first pole shoe, first the second sealing ring of pole shoe, permanent magnet, the second pole shoe
It is one sealing ring, the second pole shoe, second the second sealing ring of pole shoe, upper end cover, magnetic liquid, gyroaxis, the sealing ring of rotating ring first, dynamic
Ring, the sealing ring of rotating ring second.
Constitute the connection between each several part of the device：The sealing ring of the rotating ring first, the sealing ring of rotating ring second are arranged on
In rotating ring in round recessed, the rotating ring with sealing ring is constituted；The sealing ring of first stationary ring first, first the second sealing ring of stationary ring peace
It is mounted in the outer round recessed of the first stationary ring, constitutes the first stationary ring with sealing ring；The sealing ring of second stationary ring first, the second stationary ring
Second sealing ring is arranged in the outer round recessed of the second stationary ring, constitutes the second stationary ring with sealing ring；First pole shoe first is close
Seal, first the second sealing ring of pole shoe are arranged in the outer round recessed of the first pole shoe, constitute the first pole shoe with sealing ring；Described
The sealing ring of diode boot first, second the second sealing ring of pole shoe are arranged in the outer round recessed of the second pole shoe, constitute with sealing ring the
Diode boot；
The moving ring sleeve with sealing ring completes positioning on gyroaxis using trip bolt；Described with sealing ring
One stationary ring is put in shell so that the lower surface of the first stationary ring contacts with shell；The casing on gyroaxis, using its from
Threaded connection on the ring flange of band completes positioning；The locating ring, the first pole shoe with sealing ring, permanent magnet, band sealing ring
The second pole shoe be inserted in gyroaxis successively, inject the magnetic liquid, cover upper end cover, complete each component using threaded connection
Positioning；A1, B1 hole on the shell is continuously passed through pole shoe coolant, and pole shoe coolant Jing A2, B2 flow out；On the shell
C1, D1, E1 hole is continuously passed through stationary ring coolant, and stationary ring coolant Jing C2, D2, E2 flow out；Cooling is circulated to sealing device.
The sealing device is applied to reactor sealing, when the organic vapor in reactor is to the first pole shoe side
When the gap between rotating ring and stationary ring is diffused through, due to being continuously passed through low temperature stationary ring coolant in the cylindrical groove of stationary ring,
Stationary ring temperature is low, and organic vapor runs into the stationary ring of low temperature will be liquefied, and greatly reduces and touches the organic molten of magnetic liquid
Agent steam, extends the service life of magnetic fluid seal device.
The present invention is compared with prior art and had the advantage that：The magnetic fluid seal device is applied to reactor
During sealing, first stationary ring, the second stationary ring are made up of the good material of heat conductivity, such as copper, and stationary ring cooling liquid energy is efficiently cold
But stationary ring, improves the liquefaction efficiency of organic vapor；Sealing tooth, the second stationary ring lower surface are provided with the first stationary ring inner circle
On be provided with sealing tooth, the axial distance of the sealing tooth pitch rotating ring upper surface of the second stationary ring lower surface is 1~2mm, is increased quiet
The contact area of ring and organic vapor, is conducive to the liquefaction of organic vapor；Material of the rotating ring from poor thermal conductivity
Material, such as lucite, are provided with groove inside rotating ring, the heat for advantageously reducing high temperature rotating axle is transmitted to rotating ring, reduces rotating ring
With the temperature in stationary ring gap, liquefaction efficiency is improved；The first pole shoe lower surface is conducive under the first pole shoe into " convex " shape
The organic solvent of end face liquefaction drips, and reduces because wetting action flows to the organic solvent of magnetic liquid；The stationary ring upper surface is
Inclined-plane and incline to gyroaxis, be conducive to the organic vapor for liquefying to dirty；The temperature of stationary ring coolant is cooled down than pole shoe
Liquid is low 5~15 DEG C, and the material thermal conductivity of stationary ring is more than pole shoe so that the temperature of stationary ring is less than pole shoe, is conducive to organic solvent
Steam liquefies on stationary ring, reduces the liquefaction on pole shoe.So as to successfully solve because organic vapor is to magnetic liquid
Corrosion, cause the problem of sealing device short life.
Description of the drawings
A kind of magnetic fluid seal devices suitable for reactor of Fig. 1.
In Fig. 1：Shell 1, the first stationary ring 2, first stationary ring the first sealing ring 3, first the second sealing ring of stationary ring 4, second are quiet
Ring the first sealing ring 5, the second stationary ring 6, second the second sealing ring of stationary ring 7, locating ring 8, first the first sealing ring of pole shoe 9, first
Pole shoe 10, first the second sealing ring of pole shoe 11, permanent magnet 12, second pole shoe the first sealing ring 13, the second pole shoe 14, the second pole shoe
Second sealing ring 15, upper end cover 16, magnetic liquid 17, gyroaxis 18, the first sealing ring of rotating ring 19, rotating ring 20, rotating ring second are close
Seal 21.
Specific embodiment
With accompanying drawing, as specific embodiment, the present invention will be further described：
Shell 1, the first stationary ring 2, first stationary ring the first sealing ring 3, first stationary ring the second sealing ring 4, the second stationary ring first
Sealing ring 5, the second stationary ring 6, second the second sealing ring of stationary ring 7, locating ring 8, first pole shoe the first sealing ring 9, the first pole shoe 10,
First the second sealing ring of pole shoe 11, permanent magnet 12, second pole shoe the first sealing ring 13, the second pole shoe 14, the second pole shoe second are close
Seal 15, upper end cover 16, magnetic liquid 17, gyroaxis 18, the first sealing ring of rotating ring 19, rotating ring 20, the second sealing ring of rotating ring 21.
Constitute the connection between each several part of the device：The first sealing ring of the rotating ring 19, the second sealing ring of rotating ring 21 are pacified
It is mounted in rotating ring 20 in round recessed, constitutes the rotating ring with sealing ring；First stationary ring, first sealing ring 3, the first stationary ring second
Sealing ring 4 is arranged in the outer round recessed of the first stationary ring 2, constitutes the first stationary ring with sealing ring；Second stationary ring first is sealed
5, second the second sealing ring of stationary ring of circle 7 is arranged in the outer round recessed of the second stationary ring 6, constitutes the second stationary ring with sealing ring；It is described
First pole shoe the first sealing ring 9, first the second sealing ring of pole shoe 11 are arranged in the outer round recessed of the first pole shoe 10, constitute band sealing
First pole shoe of circle；Second pole shoe, first sealing ring 13, second the second sealing ring of pole shoe 15 are arranged on outside the second pole shoe 14
In round recessed, the second pole shoe with sealing ring is constituted.
The moving ring sleeve with sealing ring completes positioning on gyroaxis 18 using trip bolt；It is described with sealing ring
First stationary ring is put in shell 1 so that the lower surface of the first stationary ring 2 contacts with shell 1；The shell 1 is enclosed within gyroaxis 18,
Positioning is completed using the threaded connection on the ring flange that it is carried；The locating ring 8, the first pole shoe with sealing ring, permanent magnet
12nd, the second pole shoe with sealing ring is inserted in successively gyroaxis 18, injects the magnetic liquid 17, upper end cover 16 is covered, using spiral shell
Stricture of vagina connection completes the positioning of each component；A1, B1 hole on the shell 1 is continuously passed through pole shoe coolant, pole shoe coolant Jing A2,
B2 flows out；C1, D1, E1 hole on the shell 1 is continuously passed through stationary ring coolant, and stationary ring coolant Jing C2, D2, E2 flow out；It is right
Sealing device is circulated cooling.
When magnetic fluid seal device works, when the organic vapor in reactor diffuses through rotating ring to pole shoe direction
20 and during the first gap between stationary ring 2 and the second stationary ring 6, lead due to being continuously passed through cryogenic liquid in the cylindrical groove of stationary ring
Cause stationary ring temperature is relatively low, and organic vapor runs into the stationary ring of low temperature will be liquefied, and greatly reduce and touch magnetic liquid 17
Organic vapor, extends the service life of magnetic fluid seal device.
First stationary ring 2, the second stationary ring 6 are made up of the good material of heat conductivity, such as copper, and stationary ring cooling liquid energy is efficient
Cooling stationary ring, improves the liquefaction efficiency of organic vapor；Sealing tooth is provided with the inner circle of first stationary ring 2, under the second stationary ring 6
End face is provided with sealing tooth, and the axial distance of the upper surface of sealing tooth pitch rotating ring 20 of the lower surface of the second stationary ring 6 is 1~2mm, is increased
Plus the contact area of stationary ring and organic vapor, be conducive to the liquefaction of organic vapor；The rotating ring 20 selects heat conductivity
Poor material, such as lucite, inside rotating ring 20 groove is provided with, and the heat for advantageously reducing high temperature rotating axle 18 is passed to rotating ring 20
Pass, reduce rotating ring 20 and the temperature in stationary ring gap, improve liquefaction efficiency；The lower surface of first pole shoe 10 has into " convex " shape
Drip beneficial to the organic solvent liquefied in the lower surface of the first pole shoe 10, reduce because wetting action flows to the organic molten of magnetic liquid 17
Agent；First stationary ring 2, the upper surface of the second stationary ring 6 are inclined-plane and incline to gyroaxis 18 that the organic solvent for being conducive to liquefaction steams
Vapour is to dirty；The temperature of stationary ring coolant is lower than pole shoe coolant 5~15 DEG C, and the material thermal conductivity of stationary ring is more than pole shoe, makes
The temperature for obtaining stationary ring is less than pole shoe, is conducive to organic vapor to liquefy on stationary ring, reduces the liquefaction on pole shoe.
Pole shoe, gyroaxis 18 are from the good material of magnetic conductivity, such as electrical pure iron；
Permanent magnet 10 selects neodymium iron boron；
Magnetic liquid of the species of magnetic liquid according to the different choice difference base load liquid of use environment.
Claims (4)
1. a kind of magnetic fluid seal device suitable for reactor, it is characterised in that：The device includes：It is shell (1), first quiet
Ring (2), the first the first sealing ring of stationary ring (3), the first the second sealing ring of stationary ring (4), the second the first sealing ring of stationary ring (5), second
Stationary ring (6), the second the second sealing ring of stationary ring (7), locating ring (8), the first the first sealing ring of pole shoe (9), the first pole shoe (10),
One the second sealing ring of pole shoe (11), permanent magnet (12), the second the first sealing ring of pole shoe (13), the second pole shoe (14), the second pole shoe
Second sealing ring (15), upper end cover (16), magnetic liquid (17), gyroaxis (18), the sealing ring of rotating ring first (19), rotating ring
(20), the sealing ring of rotating ring second (21)；
Constitute the connection between each several part of the device：The sealing ring of the rotating ring first (19), the sealing ring of rotating ring second (21) peace
It is mounted in the interior round recessed of rotating ring (20), constitutes the rotating ring with sealing ring；The sealing ring of first stationary ring first (3), the first stationary ring
Second sealing ring (4) constitutes the first stationary ring with sealing ring in the outer round recessed of the first stationary ring (2)；Second stationary ring
First sealing ring (5), the second the second sealing ring of stationary ring (7) are constituted with sealing ring in the outer round recessed of the second stationary ring (6)
Second stationary ring；The sealing ring of first pole shoe first (9), the first the second sealing ring of pole shoe (11) installed in the first pole shoe (10) outward
In round recessed, the first pole shoe with sealing ring is constituted；The sealing ring of second pole shoe first (13), second the second sealing ring of pole shoe
(15) in the outer round recessed of the second pole shoe (14), the second pole shoe with sealing ring is constituted；
The moving ring sleeve with sealing ring completes positioning on gyroaxis (18) using trip bolt；Described with sealing ring
One stationary ring is put in shell (1) so that the lower surface of the first stationary ring (2) contacts with shell (1)；The shell (1) is enclosed within revolution
On axle (18), using the threaded connection on the ring flange that it is carried positioning is completed；The locating ring (8), with sealing ring first
Pole shoe, permanent magnet (12), the second pole shoe with sealing ring are inserted in successively gyroaxis (18), inject the magnetic liquid (17), lid
Upper upper end cover (16), using threaded connection the positioning of each component is completed；A1, B1 hole on the shell (1) is continuously passed through pole shoe
Coolant, pole shoe coolant Jing A2, B2 flow out；C1, D1, E1 hole on the shell (1) is continuously passed through stationary ring coolant, stationary ring
Coolant Jing C2, D2, E2 flow out；Cooling is circulated to sealing device.
2. a kind of magnetic fluid seal device suitable for reactor according to claim 1, it is characterised in that：
First stationary ring (2), the second stationary ring (6) are made up of the good resistant material of heat conductivity, such as copper.
3. a kind of magnetic fluid seal device suitable for reactor according to claim 1, it is characterised in that：
First stationary ring (2) inner circle is provided with sealing tooth, and the second stationary ring (6) lower surface is provided with sealing tooth.
4. a kind of magnetic fluid seal device suitable for reactor according to claim 1, it is characterised in that：
The axial distance of sealing tooth pitch rotating ring (20) upper surface of the second stationary ring (6) lower surface is 1~2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953013.XA CN106678372A (en) | 2016-11-03 | 2016-11-03 | Magnetic liquid sealing device suitable for reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953013.XA CN106678372A (en) | 2016-11-03 | 2016-11-03 | Magnetic liquid sealing device suitable for reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678372A true CN106678372A (en) | 2017-05-17 |
Family
ID=58840461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610953013.XA Pending CN106678372A (en) | 2016-11-03 | 2016-11-03 | Magnetic liquid sealing device suitable for reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678372A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107778329A (en) * | 2017-10-22 | 2018-03-09 | 潍坊医学院 | A kind of preparation system of chlorophosphonitrile |
| CN112204277A (en) * | 2018-05-30 | 2021-01-08 | 西门子股份公司 | Assembly, in particular turbomachine, comprising a shaft sealing device |
| CN114251369A (en) * | 2021-11-25 | 2022-03-29 | 广西科技大学 | Magnetic fluid sealing device for bearing |
| CN114508592A (en) * | 2019-11-08 | 2022-05-17 | 成都一通密封股份有限公司 | Recoverable gas sealing device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759009A (en) * | 2014-01-17 | 2014-04-30 | 北京交通大学 | Fluid dynamic pressure type magnetic liquid seal device |
| CN104373601A (en) * | 2014-10-28 | 2015-02-25 | 北京交通大学 | Magnetic liquid sealing device with pole shoes being provided with high teeth and low teeth |
| CN104864099A (en) * | 2015-05-14 | 2015-08-26 | 自贡兆强密封制品实业有限公司 | Combined seal system for cold gas blower |
| CN204828678U (en) * | 2015-06-09 | 2015-12-02 | 北京交通大学 | Magnetic fluid sealing device of multilayer heat dissipation web cooling slot type |
-
2016
- 2016-11-03 CN CN201610953013.XA patent/CN106678372A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759009A (en) * | 2014-01-17 | 2014-04-30 | 北京交通大学 | Fluid dynamic pressure type magnetic liquid seal device |
| CN104373601A (en) * | 2014-10-28 | 2015-02-25 | 北京交通大学 | Magnetic liquid sealing device with pole shoes being provided with high teeth and low teeth |
| CN104864099A (en) * | 2015-05-14 | 2015-08-26 | 自贡兆强密封制品实业有限公司 | Combined seal system for cold gas blower |
| CN204828678U (en) * | 2015-06-09 | 2015-12-02 | 北京交通大学 | Magnetic fluid sealing device of multilayer heat dissipation web cooling slot type |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107778329A (en) * | 2017-10-22 | 2018-03-09 | 潍坊医学院 | A kind of preparation system of chlorophosphonitrile |
| CN112204277A (en) * | 2018-05-30 | 2021-01-08 | 西门子股份公司 | Assembly, in particular turbomachine, comprising a shaft sealing device |
| CN112204277B (en) * | 2018-05-30 | 2023-02-17 | 西门子能源环球有限责任两合公司 | Assembly, in particular turbomachine, comprising a shaft sealing device |
| US11674600B2 (en) | 2018-05-30 | 2023-06-13 | Siemens Energy Global Gmbh & Co., Kg | Assembly, more particularly turbomachine, comprising a shaft seal device |
| CN114508592A (en) * | 2019-11-08 | 2022-05-17 | 成都一通密封股份有限公司 | Recoverable gas sealing device and method |
| CN114508592B (en) * | 2019-11-08 | 2024-06-11 | 成都一通密封股份有限公司 | Recoverable gas sealing device and method |
| CN114251369A (en) * | 2021-11-25 | 2022-03-29 | 广西科技大学 | Magnetic fluid sealing device for bearing |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
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