CN206608552U - A kind of chemical reactor magnetic fluid seal device and its control system - Google Patents
A kind of chemical reactor magnetic fluid seal device and its control system Download PDFInfo
- Publication number
- CN206608552U CN206608552U CN201720169133.0U CN201720169133U CN206608552U CN 206608552 U CN206608552 U CN 206608552U CN 201720169133 U CN201720169133 U CN 201720169133U CN 206608552 U CN206608552 U CN 206608552U
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- Prior art keywords
- magnetic fluid
- magnetic
- seal device
- chemical reactor
- gas detector
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a kind of chemical reactor magnetic fluid seal device and its control system, belongs to mechanical rotatory sealing technical field.Described device is main by live spindle, magnetic conduction axle sleeve, ring flange, seal receptacle, gland, magnetic fluid sealing unit, driving ring and to be attached fixed screw to each part and constitutes.The utility model on ring flange by setting air shroud, in the case of bad seals or equipment fault, inert gas meeting air inlet shroud, air shroud expands under compression effect to be adjacent to magnetic conduction axle sleeve, prevent gas medium from overflowing, reach the effect being fully sealed.The utility model further relates to the control system detected to magnetic fluid seal device, pass through reacting gas detector I, reacting gas detector II and computer control system carry out detection alarm to the gas leakage in reactor in time, find to leak in time and control corresponding executing agency, it can accomplish completely " zero leakage ", reduction production, operation and the cost of overhaul.
Description
Technical field
The utility model belongs to mechanical rotatory sealing technical field, specially a kind of chemical reactor close dress of magnetic liquid
Put and its control system.
Background technology
Reaction medium and catalyst component are complicated in chemical reactor, and gas component is more, neither allow in course of reaction empty
Gas enters in reactor, does not also allow gas in reactor to leak into air.Chemical reactor holds in normal productive process
It is often gas-liquid two-phase in device, container bottom is liquid, and upper vessel portion is gaseous material, and sealedly acts on and mainly preventing
The only leakage of gaseous material, chemical reactor magnetic fluid seal device is applied to reactor to be had to poisonous in process of production
Evil, the sealing of flammable explosive gas.Traditional chemical reactor sealing uses double mechanical seal, during installing and using,
Need to be equipped with the resistance sealing liquid circulatory system and coolant circulation system, wherein the resistance sealing liquid circulatory system exists necessarily in use
Internal leakage, influence whether to produce the quality of product, and hinder the continuous operation meeting of the sealing liquid circulatory system and coolant circulation system
Increase the cost of operation, detection means, warning system and interlock in addition, double mechanical seal does not leak, once send out
Raw external leakage, will cause security incident, has a strong impact on normal production, ultimately result in the production of whole chemical reactor, operation and
Cost of overhaul input is higher.
Utility model content
The purpose of this utility model is to provide a kind of chemical reactor magnetic fluid seal device and its control system,
Suitable for sealing the gas medium such as poisonous, harmful, inflammable, explosive.The utility model magnetic fluid seal device and control system
Production, operation and the cost of overhaul that traditional double mechanical seal can be overcome to occur in use put into higher and sealing
The problems such as leakage, effectively improve the sealing of chemical reactor gas.The utility model purpose is by following technical proposals come real
It is existing：
It is provided with and leads outside a kind of chemical reactor magnetic fluid seal device, including live spindle, the live spindle
Magnetic axis set, ring flange, seal receptacle and gland, the magnetic conduction axle sleeve are fixed in live spindle, and the ring flange is fixed on casing
On, the seal receptacle is located above ring flange and is fixed on ring flange, in the cavity that the seal receptacle is formed with magnetic conduction axle sleeve
Magnetic fluid sealing unit I and magnetic fluid sealing unit II are provided with from top to bottom, and the gland is located above seal receptacle simultaneously
It is fixed on seal receptacle, the part axial in seal receptacle and the cavity of magnetic conduction axle sleeve formation is fixed in cavity by the gland.
It is used as an a kind of specific embodiment of chemical reactor magnetic fluid seal device of the utility model, the dress
Putting also includes being arranged on the driving ring that the magnetic conductive axis cover top, and the driving ring is fixed in live spindle, the driving ring
Lower end overlap and be fixedly connected with the upper end of magnetic conduction axle sleeve.
It is used as an a kind of specific embodiment of chemical reactor magnetic fluid seal device of the utility model, the drive
Rotating ring is fixed in live spindle by holding screw I, and the lower end of the driving ring uses clamp screw with the upper end of magnetic conduction axle sleeve
Nail II is fixedly connected, and the holding screw II is fixed in live spindle.
It is used as an a kind of specific embodiment of chemical reactor magnetic fluid seal device of the utility model, the method
It is provided with blue disk on air shroud, and the air shroud and is provided with inert gas entrance.
It is used as an a kind of specific embodiment of chemical reactor magnetic fluid seal device of the utility model, the magnetic
Property hydraulic seal unit I include the pole shoe I, permanent magnet I, pole shoe II, permanent magnet II and the pole shoe III that set gradually from top to bottom；Institute
Stating magnetic fluid sealing unit II includes the pole shoe IV set gradually from top to bottom, permanent magnet III, pole shoe V, permanent magnet IV, pole
Boots VI；Isolating pad is provided between the pole shoe III and pole shoe IV.
It is described close as an a kind of specific embodiment of chemical reactor magnetic fluid seal device of the utility model
It is additionally provided with and is arranged successively from bottom to up positioned at the bottom of magnetic fluid sealing unit I in the cavity that envelope seat is formed with magnetic conduction axle sleeve
The tetrafluoro outside framework oil seal I of row, axle check ring I, bearing I and packing ring I and in the magnetic fluid sealing unit II
The tetrafluoro outside framework oil seal II that portion is arranged in order from top to bottom, axle check ring II, bearing II and packing ring II.
The utility model also provides the control system of described chemical reactor magnetic fluid seal device, including magnetic
On liquid sealing device, reacting gas detector I, reacting gas detector II, the ring flange of the magnetic fluid seal device
Reaction gas inlet is provided with, reaction gas is provided between the magnetic fluid sealing unit I and magnetic fluid sealing unit II
The access port of bulk detector I, the reacting gas detector I is connected with the access port of reacting gas detector I；The tetrafluoro skeleton oil
The access port of reacting gas detector II is provided between envelope II and bearing II, the reacting gas detector II is visited with reacting gas
Survey the connection of the access port of device II.
It is used as a specific reality of the chemical reactor described in the utility model with magnetic fluid seal device control system
Example is applied, the gap between the reaction gas inlet and ring flange and magnetic conduction axle sleeve is communicated.
It is used as a specific reality of the chemical reactor described in the utility model with magnetic fluid seal device control system
Example is applied, the access port of reacting gas detector II is fixed on the gland of magnetic fluid seal device by attachment screw I, institute
Reaction gas inlet is stated to be fixed on ring flange by attachment screw II.
It is used as a specific reality of the chemical reactor described in the utility model with magnetic fluid seal device control system
Example is applied, the control system also includes to reacting gas detector I, reacting gas detector II, reaction gas inlet and inertia
The computer system that gas access is controlled.
The beneficial effects of the utility model：
1st, the utility model provides a kind of chemical reactor magnetic fluid seal device, passes through seal receptacle and magnetic conduction axle sleeve
Between to set magnetic seal unit I and magnetic seal unit II to carry out the gas in chemical reactor in the cavity that is formed close
Envelope, the spilling for the gas medium such as can effectively prevent chemical reaction poisonous, harmful, inflammable, explosive.
2nd, the utility model provides a kind of chemical reactor magnetic fluid seal device, by setting empty on ring flange
Gas shroud, in the case of bad seals or equipment fault, inert gas can be directly entered air by electric controling element and enclose
Band,
Air shroud expands under compression effect to be adjacent to magnetic conduction axle sleeve, is formed stop seal or maintenance sealing, is prevented gas
Body medium overflows, and reaches the effect being fully sealed.
3rd, the utility model also provides a kind of control system of chemical reactor magnetic fluid seal device, passes through control
System can carry out detection alarm to the gas leakage in reactor in time, find to leak in time and control corresponding executing agency,
It can accomplish completely " zero leakage ", reduction production, operation and the cost of overhaul.
Brief description of the drawings
Fig. 1 is the utility model chemical reactor magnetic fluid seal device structure sectional view.
Fig. 2 is the utility model chemical reactor magnetic fluid seal device control system figure.
Reference：1- live spindles, 2- magnetic conduction axle sleeves, 3- ring flanges, 4- seal receptacles, 5- glands, 6- magnetic liquids are close
Envelope unit I, 7- magnetic fluid sealing unit IIs, 8- isolating pads, 9- driving rings, 10- holding screws I, 11- holding screws II,
12- air shrouds, 13- inert gas entrances, 14- tetrafluoros outside framework oil seal I, 15- axles check ring I, 16- bearings
I, 17- packing ring I, 18- tetrafluoros outside framework oil seal II, 19- axles check ring II, 20- bearings II, 21- packing rings II, 22- reaction gases
Bulk detector I, 23- reacting gas detector II, 24- reaction gas inlets, the access port of 25- reacting gas detector I, 26- is anti-
Answer the access port of gas detector II, 27- attachment screws I, 28- attachment screws II, 601- pole shoes I, 602- permanent magnets I, 603- poles
Boots II, 604- permanent magnets II, 605- pole shoes III, 701- pole shoes IV, 702- permanent magnets III, 703- pole shoes V, 704- permanent magnets IV,
705- pole shoes VI.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
It is provided with outside a kind of chemical reactor magnetic fluid seal device, including live spindle 1, the live spindle 1
Magnetic conduction axle sleeve 2, ring flange 3, seal receptacle 4 and gland 5, the magnetic conduction axle sleeve 2 are fixed in live spindle 1, and the ring flange 3 is consolidated
It is scheduled on casing, the seal receptacle 4 is located at the top of ring flange 3 and is fixed on ring flange 3, the seal receptacle 4 and magnetic conduction axle sleeve 2
Magnetic fluid sealing unit I 6 and magnetic fluid sealing unit II 7,5, the gland are provided with the cavity of formation from top to bottom
In the top of seal receptacle 4 and it is fixed on seal receptacle 4, zero in cavity that the gland 5 forms seal receptacle 4 and magnetic conduction axle sleeve 2
Part is axially fixed in cavity.
The utility model magnetic fluid seal device is divided into rotating part and fixed part, wherein live spindle 1 and fixation
Magnetic conduction axle sleeve 2 thereon be rotating part, be fixed on the ring flange 3 on casing, be fixed on the seal receptacle 4 on ring flange 3 with
And the gland 5 being fixed on seal receptacle 4 is fixed part, circumferencial direction rotation is done in rotating part energy relatively fixed part.Enter one
Step, rotating part and each part of fixed part are achieved a fixed connection by screw, and screw is more preferably soket head cap screw, i.e.,
Magnetic conduction axle sleeve 2 is fixed in live spindle 1 by holding screw, and ring flange 3 is fixed on casing by soket head cap screw, sealing
Seat 4 is fixed on ring flange 3 by soket head cap screw, and gland 5 is fixed on seal receptacle 4 by soket head cap screw.The work of gland 5
With being that the sealing unit and part axial in cavity are fixed in cavity, the firm of sealing unit and part is further reinforced
Property, it is ensured that the sealing of whole device.
Further, the utility model seal receptacle 4 with being provided with magnetic liquid from top to bottom in the cavity of the formation of magnetic conduction axle sleeve 2
Sealing unit I 6 and magnetic fluid sealing unit II 7, magnetic fluid sealing unit I 6 and magnetic fluid sealing unit II 7 be used for pair
Reacting gas medium is sealed, and zero leakage can be achieved.Two layers of magnetic fluid sealing unit of the utility model can make device
Sealing strengthens, and reaches the effect of double-layer seal, meanwhile, if leakage, which occurs, in one of sealing unit has no effect on another
Sealing unit, another sealing unit still can play the purpose for preventing that gas medium from leaking.Further, the magnetic liquid
Body sealing unit I 6 include set gradually from top to bottom pole shoe I 601, permanent magnet I 602, pole shoe II 603, permanent magnet II 604 and
Pole shoe III 605；The magnetic fluid sealing unit II 7 include set gradually from top to bottom pole shoe IV 701, permanent magnet III 702,
Pole shoe V 703, permanent magnet IV 704, pole shoe VI 705；Isolating pad 8 is provided between the pole shoe III 605 and pole shoe IV 701.
In order to further make magnetic conduction axle sleeve 2 be fixed in live spindle 1 and ensure the turning with live spindle 1 of magnetic conduction axle sleeve 2
Dynamic, described device also includes the driving ring 9 for being arranged on the top of magnetic conduction axle sleeve 2, and the driving ring 9 is fixed on live spindle 1
On, the lower end of the driving ring 9 overlaps and is fixedly connected with the upper end of magnetic conduction axle sleeve 2.Further, the driving ring 9 passes through
Holding screw I 10 is fixed in live spindle 1, and the lower end of the driving ring 8 uses holding screw II with the upper end of magnetic conduction axle sleeve 2
11 are fixedly connected with transmission moment of torsion, and the holding screw II 11 is fixed in live spindle 1, rotated with live spindle 1.
Further, it is provided with the ring flange 3 on air shroud 12, and air shroud 12 and is provided with inert gas entrance
13.By setting air shroud 12 on ring flange 3, and inert gas is passed through by air shroud by inert gas entrance 13
12, air shroud 12 expands under compression effect to be adjacent to magnetic conduction axle sleeve 2, forms gap between magnetic conduction oversleeve 2 and ring flange 3
Sealing, in the case of bad seals or equipment fault, prevents the gas medium of inside reactor from overflowing, further strengthens close
Envelope, reaches the effect being fully sealed.
The seal receptacle 4 in the cavity of the formation of magnetic conduction axle sleeve 2 with being additionally provided with positioned at the magnetic fluid sealing unit I 6
The tetrafluoro outside framework oil seal I 14 that bottom is arranged in order from bottom to up, axle check ring I 15, bearing I 16 and packing ring I 17 and position
The tetrafluoro outside framework oil seal II 18 being arranged in order from top to bottom in the top of magnetic fluid sealing unit II 7, axle check ring
II 19, bearing II 20 and packing ring II 21.
Further, set to reinforce on the sealing of the whole magnetic fluid seal device of the utility model, shown ring flange 3
Seal O-ring is equipped with, seal O-ring is provided between the magnetic conduction axle sleeve 2 and live spindle 1, addresses seal receptacle 4 and pole shoe
Ith, it is provided with seal O-ring between pole shoe II, pole shoe III, pole shoe IV, pole shoe V, pole shoe VI.The setting of O-ring can basis
Specific sealing demand, connection sealing between the structure or part of each part sets installation, whole its purpose is to realize
The sealing of individual sealing device.This point is conventional for those skilled in the art and easily realizes, is not specifically limited herein.
A kind of control system of chemical reactor magnetic fluid seal device, as shown in Fig. 2 including magnetic fluid sealing
Set on device, reacting gas detector I 22, reacting gas detector II 23, the ring flange 2 of the magnetic fluid seal device
There is reaction gas inlet 24, reaction gas is provided between the magnetic fluid sealing unit I 6 and magnetic fluid sealing unit II 7
The access port 25 of bulk detector I, the reacting gas detector I 22 is connected with the access port 25 of reacting gas detector I；The tetrafluoro
The access port 26 of reacting gas detector II, the reacting gas detector II are provided between outside framework oil seal II 18 and bearing II 20
23 are connected with the access port 26 of reacting gas detector II.Reacting gas detector I 22 is used for magnetic fluid sealing unit I 6
Sealing is detected that reacting gas detector II 23 is used for detecting the sealing of magnetic fluid sealing unit II 7, instead
Gas access 24 is answered to be used for being passed through reacting gas.Further, the reaction gas inlet 24 and ring flange 3 and magnetic conduction axle sleeve 2 it
Between gap communicate, so as to realize the importing of reacting gas.Further, the reaction gas inlet 24 preferably L-shaped, and institute
The gas for stating gap between reaction gas inlet 24 and ring flange 3 and magnetic conduction axle sleeve 2 is passed through mouth less than the air shroud 12, this
Sample could realize that room shroud 12 is adjacent to by compression swelling with magnetic conduction axle sleeve 2 when sealing device is leaked, formed magnetic conduction oversleeve 2 with
The sealing in gap between ring flange 3, so as to prevent gas medium from overflowing, further strengthens sealing, reaches the effect being fully sealed.
Further, the access port 26 of reacting gas detector II is fixed on magnetic fluid sealing by attachment screw I 27
On the gland 5 of device, the reaction gas inlet 24 is fixed on ring flange 3 by attachment screw II 28.So set be for
The fixation of the access port 26 of reacting gas detector II and reaction gas inlet 24 is realized, while facilitate reacting gas detector II
23 and the access of reacting gas.
Further, the control system also includes to gas reaction detector I 22, gas reaction detector II 23, instead
The computer system for answering gas access 24 and inert gas entrance 13 to be controlled.Gas reaction is detected by computer system
Device I 22, gas reaction detector II 23, reaction gas inlet 24 and inert gas entrance 13 are controlled, and can be detected in time
Go out the sealing condition of the utility model magnetic fluid seal device, and corresponding anti-leak made according to specific sealing condition to arrange
Apply, leakage is found in time and to being handled for specifically leakage, prevent from revealing further expansion, reduction production, operation and inspection
Accomplish this.
The specific work process of the utility model chemical reactor magnetic fluid seal device and its control system is as follows：
When magnetic fluid seal device is not revealed, reaction gas inlet 24 is opened, and reacting gas is passed through into reactor, is now reacted
Gas detector I 6 and reacting gas detector II 7 will not send alarm signal, sealing device normal work.Work as magnetic liquid
When sealing unit I 6 is leaked, the reacting gas detector I 22 being connected with the access port 25 of reacting gas detector I is to computer
Control system sends alarm signal 1, shows that the magnetic liquid of the magnetic fluid sealing unit I 6 of bottom is not enough, it should add magnetic liquid
Body, if not sending alarm signal 2 with the reacting gas detector II 23 that the access port 26 of reacting gas detector II is connected, shows
Magnetic fluid sealing unit II 7 still has sealing function, and whole sealing device is still in sealing state, now, computer control
System processed will not send instruction and close reaction gas inlet 24, will not also open inert gas entrance 13, motor may proceed to
Operating, sealing device can be continuing with, for whole sealing device, equivalent to one insurance of magnetic fluid sealing unit II 7
Device, when the reacting gas detector II 23 detected to magnetic fluid sealing unit II 7 sends alarm signal 2, is calculated
Machine control system can send instructions signal so that reaction gas inlet 24 is closed, and motor shuts down, inert gas entrance 13 dozens
Open, inert gas air inlet shroud 12, the expansion under compression effect of air shroud 12 is adjacent to magnetic conduction axle sleeve 2 prevents internal gas
The spilling of body medium, plays a part of being fully sealed.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of chemical reactor magnetic fluid seal device, it is characterised in that including live spindle, outside the live spindle
Magnetic conduction axle sleeve, ring flange, seal receptacle and gland are provided with, the magnetic conduction axle sleeve is fixed in live spindle, the ring flange is consolidated
It is scheduled on casing, the seal receptacle is located above ring flange and is fixed on ring flange, and the seal receptacle is formed with magnetic conduction axle sleeve
Cavity in be provided with magnetic fluid sealing unit I and magnetic fluid sealing unit II from top to bottom, the gland is located at sealing
Seat top is simultaneously fixed on seal receptacle, and the part axial in cavity that the gland forms seal receptacle with magnetic conduction axle sleeve is fixed on
In cavity.
2. a kind of chemical reactor magnetic fluid seal device as claimed in claim 1, it is characterised in that described device is also wrapped
Include and be arranged on the driving ring that the magnetic conductive axis cover top, the driving ring is fixed in live spindle, the lower end of the driving ring
Overlap and be fixedly connected with the upper end of magnetic conduction axle sleeve.
3. a kind of chemical reactor magnetic fluid seal device as claimed in claim 2, it is characterised in that the driving ring is led to
Cross holding screw I to be fixed in live spindle, the lower end of the driving ring is solid using holding screw II with the upper end of magnetic conduction axle sleeve
Fixed connection, the holding screw II is fixed in live spindle.
4. a kind of chemical reactor magnetic fluid seal device as claimed in claim 1, it is characterised in that on the ring flange
It is provided with air shroud, and the air shroud and is provided with inert gas entrance.
5. a kind of chemical reactor magnetic fluid seal device as claimed in claim 1, it is characterised in that the magnetic liquid
Sealing unit I includes pole shoe I, permanent magnet I, pole shoe II, permanent magnet II and the pole shoe III set gradually from top to bottom；The magnetic
Hydraulic seal unit II includes pole shoe IV, permanent magnet III, pole shoe V, permanent magnet IV, the pole shoe VI set gradually from top to bottom；Institute
State and be provided with isolating pad between pole shoe III and pole shoe IV.
6. a kind of chemical reactor magnetic fluid seal device as described in any one of claim 1 to 5, it is characterised in that institute
Be additionally provided with the cavity for stating the formation of seal receptacle and magnetic conduction axle sleeve positioned at the bottom of magnetic fluid sealing unit I from bottom to up according to
The tetrafluoro outside framework oil seal I of secondary arrangement, axle check ring I, bearing I and packing ring I and positioned at the magnetic fluid sealing unit
The tetrafluoro outside framework oil seal II that II top is arranged in order from top to bottom, axle check ring II, bearing II and packing ring II.
7. a kind of control system of chemical reactor magnetic fluid seal device as claimed in claim 6, it is characterised in that
Including magnetic fluid seal device, reacting gas detector I, reacting gas detector II, the magnetic fluid seal device
Reaction gas inlet is provided with ring flange, is set between the magnetic fluid sealing unit I and magnetic fluid sealing unit II
There is the access port of reacting gas detector I, the reacting gas detector I is connected with the access port of reacting gas detector I；Described four
Be provided with the access port of reacting gas detector II between fluorine outside framework oil seal II and bearing II, the reacting gas detector II with it is anti-
The access port of gas detector II is answered to connect.
8. the control system of chemical reactor magnetic fluid seal device as claimed in claim 7, it is characterised in that described
Gap between reaction gas inlet and ring flange and magnetic conduction axle sleeve is communicated.
9. the control system of chemical reactor magnetic fluid seal device as claimed in claim 7, it is characterised in that described
The access port of reacting gas detector II is fixed on the gland of magnetic fluid seal device by attachment screw I, the reaction gas
Body entrance is fixed on ring flange by attachment screw II.
10. the control system of chemical reactor magnetic fluid seal device as claimed in claim 7, it is characterised in that institute
Stating control system also includes to reacting gas detector I, reacting gas detector II, reaction gas inlet and inert gas entrance
The computer system being controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169133.0U CN206608552U (en) | 2017-02-24 | 2017-02-24 | A kind of chemical reactor magnetic fluid seal device and its control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169133.0U CN206608552U (en) | 2017-02-24 | 2017-02-24 | A kind of chemical reactor magnetic fluid seal device and its control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608552U true CN206608552U (en) | 2017-11-03 |
Family
ID=60168131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720169133.0U Expired - Fee Related CN206608552U (en) | 2017-02-24 | 2017-02-24 | A kind of chemical reactor magnetic fluid seal device and its control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018153059A1 (en) * | 2017-02-24 | 2018-08-30 | 自贡兆强密封制品实业有限公司 | Magnetic liquid sealing apparatus for chemical reactor and control system therefor |
| CN112145698A (en) * | 2020-08-25 | 2020-12-29 | 清华大学 | Magnetic liquid sealing device with permanent magnet sheets and magnetic conductive sheets alternately distributed |
| CN112178206A (en) * | 2020-10-30 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device for large axial radial swing |
-
2017
- 2017-02-24 CN CN201720169133.0U patent/CN206608552U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018153059A1 (en) * | 2017-02-24 | 2018-08-30 | 自贡兆强密封制品实业有限公司 | Magnetic liquid sealing apparatus for chemical reactor and control system therefor |
| CN112145698A (en) * | 2020-08-25 | 2020-12-29 | 清华大学 | Magnetic liquid sealing device with permanent magnet sheets and magnetic conductive sheets alternately distributed |
| CN112178206A (en) * | 2020-10-30 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device for large axial radial swing |
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| 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: 20171103 Termination date: 20190224 |