CN206916134U - Sterile channel formula device for sealing magnetic fluid - Google Patents
Sterile channel formula device for sealing magnetic fluid Download PDFInfo
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- CN206916134U CN206916134U CN201720638191.3U CN201720638191U CN206916134U CN 206916134 U CN206916134 U CN 206916134U CN 201720638191 U CN201720638191 U CN 201720638191U CN 206916134 U CN206916134 U CN 206916134U
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Abstract
The utility model offer is a kind of can to transmit larger moment of torsion, it is contactless during transmission to rub, avoid the impurity such as generation powder, dust from entering reactor, the sterile channel formula device for sealing magnetic fluid for disclosure satisfy that technique ventilation requirement, realizing the in place, venting channels sterile of reactor and sterilizing.It is that separation sleeve is not being fixed inside magnetic conductance seat, and magnetic conduction power transmission shaft is rotatably arranged on not on magnetic conductance seat through separation sleeve and upper and lower side by bearing；There is magnet fluid sealing chamber in the both sides of separation sleeve；Magnet fluid sealing intracavitary has permanent magnet, has pole shoe in the both sides of permanent magnet, has magnetic fluid in the gap between pole shoe and magnetic conduction power transmission shaft；Annular groove is provided with the inner circumferential of separation sleeve, the annular groove communicates with by the runner in separation sleeve with being opened in the air inlet not on magnetic conductance seat；The air intake duct that the annular groove is communicated with magnetic conduction power transmission shaft lower end is provided with magnetic conduction power transmission shaft；Magnetic conduction power transmission shaft upper end is connected with being fixed on the output shaft of the not motor on magnetic conductance seat top.
Description
Technical field
It the utility model is related to and be applied to big-and-middle-sized microorganism reactor（Culture tank, cell tank）Sterile stirring sealing dress
Put.
Background technology
The dynamical system of the sealing device of bioreactor stirring at present is magnetic force and mechanical two kinds of agitating modes nothing but.Machinery
The sealing problem of stirring is completed mainly by mechanical seal.Its primary seal is by a pair or several be bonded each other to end face is made relatively
The rotating ring and stationary ring of slip, conventional rubber o-ring or polytetrafluoroethylene (PTFE) circle are made auxiliary seal and completed, during sealing
Pollution risk is larger.Magnetic agitation system mainly completes transmission by the effect of interior external magnet, because of No leakage, saves energy
Consumption, shearing force it is small, thoroughly solve the problems, such as mechanical agitation it is poorly sealed caused by microbiological contamination, be able to relatively broad application.Right nothing
Bacterium operating technology is thoroughly to sterilize and prevent to pollute two indispensable aspects, if thoroughly sterilizing is a problem.In addition,
For the equipment for needing high torque, there is certain limitation in magnetic agitation, it is impossible to the stable transmission for completing power.
The content of the invention
The purpose of this utility model be to provide it is a kind of can transmit larger moment of torsion, contactless friction during transmission, avoid producing
The impurity such as green powder, dust enter reactor, disclosure satisfy that technique ventilation requirement, realize the in place, venting channels of reactor
Sterile and sterilizing sterile channel formula device for sealing magnetic fluid.
Sterile channel formula device for sealing magnetic fluid described in the utility model, is not fixing separation sleeve, is leading inside magnetic conductance seat
Magnetic drive axle is rotatably arranged on not on magnetic conductance seat through separation sleeve and upper and lower side by bearing；There is magnetic current in the both sides of separation sleeve
Body annular seal space；Magnet fluid sealing intracavitary has permanent magnet, has pole shoe in the both sides of permanent magnet, between pole shoe and magnetic conduction power transmission shaft
Gap in have magnetic fluid；Annular groove is provided with the inner circumferential of separation sleeve, the annular groove by the runner in separation sleeve with being opened in not leading
Air inlet on magnetic support communicates；The air intake duct that the annular groove is communicated with magnetic conduction power transmission shaft lower end is provided with magnetic conduction power transmission shaft；
Magnetic conduction power transmission shaft upper end is connected with being fixed on the output shaft of the not motor on magnetic conductance seat top.
Above-mentioned sterile channel formula device for sealing magnetic fluid, is not provided with flange seal part on the lower surface of magnetic conductance seat.
Above-mentioned sterile channel formula device for sealing magnetic fluid, is provided with magnetic conduction power transmission shaft lower surface and adpting flange seals
Part.
Above-mentioned sterile channel formula device for sealing magnetic fluid, magnetic conduction power transmission shaft upper end passes through shaft coupling and the output shaft of motor
It is connected.
The beneficial effects of the utility model：It is big by motor driving magnetic conduction power transmission shaft, the moment of torsion of transmission.Belonging to existing skill
The Magneticfluid Seal Technique of art is applied in the application, and the upper and lower ends of separation sleeve have magnet fluid sealing chamber.Magnet fluid sealing
Intracavitary has permanent magnet, has pole shoe in the both sides of permanent magnet, has magnetic fluid in the gap between pole shoe and magnetic conduction power transmission shaft.Ring
Shape permanent magnet, pole shoe, magnetic conduction power transmission shaft form magnetic circuit, under the magnetic fields of permanent magnet, pole shoe and magnetic conduction power transmission shaft
Between gap in magnetic fluid concentrated, form it into one so-called " O-ring seal ".Magnetic fluid is at both ends uniform
In the presence of stabilizing magnetic field, in the space of upper and lower ends between magnetic fluid and magnetic conduction power transmission shaft, it is established that multistage " O-ring seal "
So as to reach sealing effectiveness.Every grade of sealing ring can bear the pressure difference of 0.15-0.2 atmospheric pressure, and overall sealing is pressure-resistant with liquid " O
The series of type sealing ring " increases and increased, conceptually general it is believed that it is " zero leakage " dynamic sealing.Required for technique
Gas can be sent into reactor by the air intake duct in the runner in air inlet, separation sleeve, annular groove, magnetic conduction power transmission shaft（Tank）It is interior.
Certainly, this passage can also complete the entrance of 130 degree of saturated vapors, realize to whole equipment sterilizing in place.
In brief, this sterile channel formula device for sealing magnetic fluid, conventional sealing is eliminated using magnet fluid sealing design
The drawbacks of face contact friction；Drive mechanism is greatly reduced, is easy for installation and maintenance；Sealing ventilation is combined into one, is turned into
Really sterile seal；Ensure that product quality is stable, the development cycle is short, pollution-free, remarkable in economical benefits.
Brief description of the drawings
Fig. 1 is the schematic diagram of sterile channel formula device for sealing magnetic fluid.
In figure, servomotor 1, shaft coupling 2, bearing 3, not magnetic conductance seat, magnetic conduction power transmission shaft 5, upper end magnetic fluid sealing structure
I6, separation sleeve 7, air inlet 8, lower end magnetic fluid sealing structure II9, flange seal part 10, adpting flange seal 11, permanent magnet
12, pole shoe 13.
Embodiment
Sterile channel formula device for sealing magnetic fluid shown in Figure 1, by shaft coupling 2 by servomotor 1 with have into
The magnetic conduction power transmission shaft 5 of air flue connects；Transmit rotary movement in closed reactor.
Magnetic conduction power transmission shaft 5 is fixed on not inside magnetic conductance seat 4 by upper and lower ends bearing 3.
The top that magnetic conduction power transmission shaft 5 is connected with shaft coupling is solid shafting, with the phase of air inlet 8 being fixed on not on magnetic conductance seat 4
Logical part and be air-cored axis with entering container part.
Magnet fluid sealing liquid is divided into by upper end magnetic fluid sealing structure I6 and lower end magnetic fluid sealing structure by separation sleeve 7
II9, complete the axially and radially sealing to magnetic conduction power transmission shaft 5.
Upper end magnetic fluid sealing structure I6 and lower end magnetic fluid sealing structure II9 belongs to the magnet fluid sealing of prior art
Structure, including permanent magnet 12, pole shoe 13, magnetic fluid（It is not shown）Deng.There is pole shoe 13, pole in the both sides of annular permanent magnet 12
There is magnetic fluid in gap between boots and magnetic conduction power transmission shaft.Annular permanent magnet, pole shoe, magnetic conduction power transmission shaft form magnetic circuit,
Under the magnetic fields of permanent magnet, the magnetic fluid in gap between pole shoe and magnetic conduction power transmission shaft is concentrated, and formation one is so-called
" O-ring seal ".Magnet fluid sealing liquid has under usual centrifugal force and magnetic fields, and neither settling and condensing and can makes it
Itself bears magnetic, can be by the characteristic of attraction, and when it injects the gap in magnetic field, it can be full of whole gap, be formed
A kind of " O-ring seal of liquid " completes the sealing when rotating to magnetic conduction power transmission shaft 5.
Inlet duct connect air inlet 8, inlet duct supply reaction when required gas pass through the stream in separation sleeve 7
Road, annular groove, the air intake duct being sent into magnetic conduction power transmission shaft, reactor is entered back into, complete technique air inlet.
By the flange seal part 10 not set on magnetic conductance seat lower surface make not magnetic conductance seat 4 be connected with reactor static seal,
Complete the present apparatus and the seal operation of reactor.
Made by the adpting flange seal 11 set on magnetic conduction power transmission shaft lower surface in magnetic conduction power transmission shaft and reactor
Agitating device static seal connects, and completes drive connection sealing.
130 DEG C of saturated vapors are sent into by separation sleeve 7 to enter, then enter through magnetic conduction power transmission shaft in reactor by air inlet 8
Complete container sterilizing and itself sterilizing in place.
The operating temperature of this sterile channel formula device for sealing magnetic fluid must not exceed 150 DEG C, and operating pressure is not more than 1MPa,
At the top of the closed tank body as reactor.Not magnetic conductance seat with flange seal part is threadedly coupled with cover flange, nothing
Other sealing structures, greatly reduce cross pollution.
Sterile channel formula device for sealing magnetic fluid on cover, completes the sealing of whole transmission mechanism.It is all
It is contactless with external environment condition that drive mechanism and seal close installation.
Power transmission shaft is magnetic conduction power transmission shaft, is fixed on not on magnetic conductance seat by upper and lower ends bearing.Magnetic conduction power transmission shaft connects with outside
The air inlet connect is communicated by the separation sleeve connection with passage.On the basis of separation sleeve upper channel, upper end is magnetic conduction power transmission shaft
Solid shafting and motor connection, through hole axle and the hollow stirring axis connection in sealing container centered on lower end.
Transmission seal is divided into upper and lower ends by the separation sleeve on magnetic conduction power transmission shaft.Effect of the both ends in uniform steady magnetic field
Under, make magnetic fluid be full of with the space of the upper and lower ends of setting, it is established that multistage " O-ring seal " is so as to reaching sealing effect
Fruit.Every grade of sealing ring can bear the pressure difference of 0.15-0.2 atmospheric pressure, overall to seal the pressure-resistant series with liquid " O-ring seal "
Increase and increase, it is basic to realize " zero leakage " dynamic sealing.
Inlet duct is connected by fast card connected mode with air inlet, and the gas required for technique is sent into tank through separation sleeve
It is interior.This passage can also complete the entrance of 130 degree of saturated vapors, to whole equipment sterilizing in place.
The present apparatus is a kind of control environment equipment, is the key of bioprocesses, and each step is required for doing during it is operated
To " sterile ", solves the problems, such as the sterile and sterilizing of big-and-middle-sized consersion unit.
Claims (4)
1. sterile channel formula device for sealing magnetic fluid, it is characterized in that：Separation sleeve is not being fixed inside magnetic conductance seat, magnetic conduction power transmission shaft is worn
Cross separation sleeve and upper and lower side is rotatably arranged on not on magnetic conductance seat by bearing；There is magnet fluid sealing chamber in the both sides of separation sleeve；
Magnet fluid sealing intracavitary has permanent magnet, has pole shoe in the both sides of permanent magnet, in the gap between pole shoe and magnetic conduction power transmission shaft
There is magnetic fluid；Be provided with annular groove in the inner circumferential of separation sleeve, the annular groove with by the runner in separation sleeve and being opened in not on magnetic conductance seat
Air inlet communicates；The air intake duct that the annular groove is communicated with magnetic conduction power transmission shaft lower end is provided with magnetic conduction power transmission shaft；Magnetic conduction is driven
Axle upper end is connected with being fixed on the output shaft of the not motor on magnetic conductance seat top.
2. sterile channel formula device for sealing magnetic fluid as claimed in claim 1, it is characterized in that：Do not set on the lower surface of magnetic conductance seat
It is equipped with flange seal part.
3. sterile channel formula device for sealing magnetic fluid as claimed in claim 1, it is characterized in that：Magnetic conduction power transmission shaft is set on lower surface
It is equipped with and adpting flange seal.
4. sterile channel formula device for sealing magnetic fluid as claimed in claim 1, it is characterized in that：Magnetic conduction power transmission shaft upper end passes through connection
Axle device is connected with the output shaft of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638191.3U CN206916134U (en) | 2017-06-05 | 2017-06-05 | Sterile channel formula device for sealing magnetic fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720638191.3U CN206916134U (en) | 2017-06-05 | 2017-06-05 | Sterile channel formula device for sealing magnetic fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206916134U true CN206916134U (en) | 2018-01-23 |
Family
ID=61314454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720638191.3U Active CN206916134U (en) | 2017-06-05 | 2017-06-05 | Sterile channel formula device for sealing magnetic fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206916134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413043A (en) * | 2018-06-12 | 2018-08-17 | 邵阳市达力电源实业有限公司 | Blender device for sealing magnetic fluid |
| CN108799052A (en) * | 2018-08-07 | 2018-11-13 | 珠海市司迈科技有限公司 | A kind of removable seal air pump |
-
2017
- 2017-06-05 CN CN201720638191.3U patent/CN206916134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413043A (en) * | 2018-06-12 | 2018-08-17 | 邵阳市达力电源实业有限公司 | Blender device for sealing magnetic fluid |
| CN108799052A (en) * | 2018-08-07 | 2018-11-13 | 珠海市司迈科技有限公司 | A kind of removable seal air pump |
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