CN214763462U - Centrifugal extractor with magnetic fluid sealing device - Google Patents
Centrifugal extractor with magnetic fluid sealing device Download PDFInfo
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- CN214763462U CN214763462U CN202120555301.6U CN202120555301U CN214763462U CN 214763462 U CN214763462 U CN 214763462U CN 202120555301 U CN202120555301 U CN 202120555301U CN 214763462 U CN214763462 U CN 214763462U
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- magnetic fluid
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- centrifugal extractor
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Abstract
The utility model belongs to the technical field of centrifugal extractors, in particular to a centrifugal extractor with a magnetic fluid sealing device, which aims at the problems that the contact type seal of the existing centrifugal extractor has 30 percent of sealing failure in the working process, does not bear pressure, has leakage condition under certain pressure, and lubricating grease and lubricating oil have oil throwing in the working process, the centrifugal extractor comprises a motor, a bearing seat is sleeved outside a shaft of the motor, a pole shoe is sleeved outside the shaft, a magnetic pole and a magnetic fluid are arranged in the pole shoe, and a stepped shaft sleeve is sleeved on one end of the shaft, the utility model discloses a sealing isolation between power and a solvent cavity is realized, the centrifugal extractor has tight sealing property, unmeasurable leakage rate, long service life, high reliability, no pollution completely, can bear high rotating speed, and optimal torque transmission (100 percent of torque transmission without power consumption), low viscous friction, and the like.
Description
Technical Field
The utility model relates to a centrifugal extraction machine technical field especially relates to a centrifugal extraction machine with magnetic current body sealing device.
Background
A centrifugal extractor for extracting liquid from liquid material is composed of motor, rotary drum, mixer, casing and machine frame, and features that the liquid mixture of two incompatible liquids with different densities is driven by rotary drum and its radial plate to rotate synchronously at high speed to generate centrifugal force, the liquid with higher density is separated from the center of rotary drum and close to the wall of drum, the liquid with lower density is separated from the wall of drum and close to the center, and the two phases are thrown into collecting cavities via channels and flow out from collecting cavities The sealing performance is good, the automation degree is high, the clean production is convenient to realize, and the like, and the device is widely applied to various fields of wet metallurgy, wastewater treatment, medicine, chemical industry, food and the like;
the mechanical seal is widely applied to the field of fluid conveying in the mechanical industry, the mechanical seal is divided into a contact seal and a non-contact seal, a framework oil seal commonly used for a centrifugal extractor is a form of achieving a sealing effect by using an oil film in the contact seal, according to data statistics, the contact seal has 30% of sealing failure in work, is not bearing pressure, has a leakage condition under a certain pressure, and lubricating grease and lubricating oil have an oil throwing condition in the work process, so that the lubricating grease and the lubricating oil can affect feed liquid.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the contact seal of the centrifugal extractor has 30 percent of sealing failure in the work, and does not bear pressure, and the leakage condition exists under certain pressure, and lubricating grease and lubricating oil have the condition of getting rid of oil in the working process, can produce the shortcoming of influence to the feed liquid, and the centrifugal extractor with the magnetic fluid seal provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a centrifugal extraction machine with magnetic current body seal, includes the motor, the axle outside cover of motor is equipped with the bearing frame, and the outside cover of axle is equipped with the pole shoe, is provided with magnetic pole and magnetic current body in the pole shoe, and the pot head of axle is equipped with the ladder axle sleeve, and the drum axle of rotary drum is equipped with in the ladder axle sleeve.
Preferably, the outer side of the shaft is sleeved with a magnetic fluid sealing device, the magnetic fluid sealing device is matched with the stepped shaft sleeve, and the stepped shaft sleeve is made of PP materials.
Preferably, the magnetic fluid sealing device comprises a permanent magnet, a pole shoe and a magnetic fluid.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a magnetic fluid sealing device replaces the skeleton oil blanket, install on centrifugal extraction spindle, the rotary drum only relies on the upper portion bearing frame to support, the lower part does not have the bearing, no mechanical seal, the magnetic fluid device is fixed in the middle of bearing frame and last big lid through "O" type circle and flange, realize the sealed isolation between power and the solvent cavity, according to the constitution of magnetic fluid and sealed principle, the leakage rate that can not be measured, long service life, high reliability, it is pollution-free completely, can bear high rotational speed, best torque transmission (100% torque transmission and do not have power consumption), advantages such as low viscidity friction.
Drawings
Fig. 1 is a schematic structural diagram of a centrifugal extractor with a magnetic fluid seal according to the present invention;
fig. 2 is a schematic diagram of a local enlarged structure in fig. 1 of a centrifugal extractor with a magnetic fluid seal according to the present invention.
In the figure: 1 motor, 2 bearing seats, 3 shafts, 4 pole shoes, 5 magnetic poles, 6 magnetic fluid, 7 stepped shaft sleeves and 8 rotary drums.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Referring to fig. 1-2, a centrifugal extractor with a magnetic fluid sealing device comprises a motor 1, a bearing seat 2 is sleeved on the outer side of a shaft 3 of the motor 1, a pole shoe 4 is sleeved on the outer side of the shaft 3, a magnetic pole 5 and a magnetic fluid 6 are arranged in the pole shoe 4, a stepped shaft sleeve 7 is sleeved on one end of the shaft 3, and a drum shaft of a rotary drum 8 is sleeved in the stepped shaft sleeve 7.
In this embodiment, the magnetic fluid sealing device is sleeved on the outer side of the shaft 3, the magnetic fluid sealing device is matched with the stepped shaft sleeve 7, the stepped shaft sleeve 7 is made of a PP material, the PP material has the characteristics of magnetic conduction and non-magnetic conduction, the magnetic fluid sealing device is integrally fixed on the outer side of the shaft, the stepped shaft sleeve 7 is temporarily used when being installed, and the stepped shaft sleeve 7 can be taken down after the magnetic fluid 6 is installed.
In the embodiment, the magnetic fluid sealing device comprises a simple permanent magnet, a pole shoe 4 and a small amount of magnetic fluid 6, and only bearings which can generate abrasion are high in reliability; because no abrasion is generated, the liquid sealing ring does not generate particles polluting the system, and the feed liquid is polluted in zero.
In the embodiment, the magnetic fluid sealing device is mature equipment which is applied outside centrifugal extraction equipment, the application range of parts is wide, the sealing structure is simple in structure system, and the working performance is reliable.
In the embodiment, the magnetic fluid sealing device is highly stable static sealing and dynamic sealing, and almost has no leakage, because the magnetic fluid 6 can fill the sealing gap of the whole sealing device to form a liquid O-shaped sealing ring, and the magnetic field intensity of the sealing device is changed at the same time, so that the viscosity of the magnetic fluid 6 can be changed, the sealing effect of the magnetic fluid can be enhanced, the possibility of leakage of a sealing medium is further reduced, and the characteristic is very important for sealing corrosive gas and toxic and inflammable explosive gas.
In the embodiment, the magnetic fluid sealing device has the advantages that the magnetic fluid 6 has the fluid effect and the viscosity change effect under the action of the magnetic field, so that the loss of the sealing performance caused by the transient overvoltage breakdown of the magnetic fluid seal can be avoided.
In the embodiment, the carrier liquid used for sealing the magnetic fluid is a diester-based organic matter with inertia, stability and low vapor pressure, the volatilization amount is extremely low, the carrier liquid can be used for a long time, and the carrier liquid does not need to be maintained for at least ten years.
The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.
Claims (3)
1. The utility model provides a centrifugal extraction machine with magnetic current body sealing device, includes motor (1), its characterized in that, the axle (3) outside cover of motor (1) is equipped with bearing frame (2), and the outside cover of axle (3) is equipped with pole shoe (4), is provided with magnetic pole (5) and magnetic current body (6) in pole shoe (4), and the pot head of axle (3) is equipped with ladder axle sleeve (7), and the drum axle that the rotary drum (8) was equipped with to ladder axle sleeve (7) endotheca.
2. The centrifugal extractor with the magnetic fluid sealing device according to claim 1, wherein the magnetic fluid sealing device is sleeved outside the shaft (3) and matched with the stepped shaft sleeve (7), and the stepped shaft sleeve (7) is made of PP (polypropylene).
3. A centrifugal extractor with a magnetic fluid sealing device according to claim 2, characterized in that the magnetic fluid sealing device comprises a permanent magnet, a pole shoe (4) and a magnetic fluid (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120555301.6U CN214763462U (en) | 2021-03-18 | 2021-03-18 | Centrifugal extractor with magnetic fluid sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120555301.6U CN214763462U (en) | 2021-03-18 | 2021-03-18 | Centrifugal extractor with magnetic fluid sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN214763462U true CN214763462U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120555301.6U Active CN214763462U (en) | 2021-03-18 | 2021-03-18 | Centrifugal extractor with magnetic fluid sealing device |
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| CN (1) | CN214763462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114949921A (en) * | 2022-06-29 | 2022-08-30 | 江苏高科制药设备有限公司 | Supercritical extraction reation kettle of strong leakproofness |
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2021
- 2021-03-18 CN CN202120555301.6U patent/CN214763462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114949921A (en) * | 2022-06-29 | 2022-08-30 | 江苏高科制药设备有限公司 | Supercritical extraction reation kettle of strong leakproofness |
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