CN211913647U - Magnetic liquid sealing device for high-temperature-resistant stirrer - Google Patents
Magnetic liquid sealing device for high-temperature-resistant stirrer Download PDFInfo
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- CN211913647U CN211913647U CN202020240544.6U CN202020240544U CN211913647U CN 211913647 U CN211913647 U CN 211913647U CN 202020240544 U CN202020240544 U CN 202020240544U CN 211913647 U CN211913647 U CN 211913647U
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Abstract
The utility model provides a magnetic liquid sealing device for a high temperature resistant stirrer, which comprises a flange seat, a sealing seat and a magnetic conduction shaft sleeve; the magnetic conduction shaft sleeve is sleeved inside the flange seat and the sealing seat; a cooling water tank is arranged on the flange seat; a cooling water inlet is formed in one side of the bottom of the sealing seat and communicated with the cooling water tank; a sealed rotary installation cavity is arranged between the sealing seat and the magnetic conduction shaft sleeve; the bottom of the sealed rotary installation cavity is provided with a magnetic liquid sealing unit; the upper part of the sealed rotary installation cavity is provided with a bearing unit; the magnetic liquid sealing unit and the bearing unit are sleeved on the outer wall of the magnetic conduction shaft sleeve. The utility model discloses a set up cooling device, and hinder the sealing, keep apart and cool off inside medium and magnetic liquid seal, solved the sealed problem that traditional magnetic liquid seal can not work under high temperature high pressure condition.
Description
Technical Field
The utility model relates to a mechanical rotary seal device for high temperature high pressure agitator realizes the sealed of the higher gaseous medium of temperature and pressure in the agitator.
Background
In the normal production process of some stirrers, the medium in the stirrer is required to carry out synthesis reaction at high temperature and high pressure, and the synthesis reaction is often accompanied with the generation of toxic and harmful gases or flammable and explosive gases, so that external gases or liquid are not allowed to enter the reactor in the reaction process, and meanwhile, the gas medium in the stirrer is also required not to be leaked into the atmosphere, which puts high requirements on the temperature resistance, pressure resistance and reliability of sealing.
The traditional magnetic liquid sealing device is mainly used for vacuum sealing at normal temperature and high temperature; the magnetic liquid seal for the stirrer at high temperature and high pressure is not involved. Aiming at the high-temperature high-pressure synthesis stirrer, the service life of the seal is seriously influenced by considering that the magnetic liquid is easy to volatilize at high temperature and the pressure resistance is reduced, so that the failure of the seal is caused.
In order to improve the sealing performance, when the magnetic liquid sealing device is used in a high-temperature and high-pressure environment, the sealing device needs to be redesigned, so that the use of the high-temperature and high-pressure stirrer is completely met, and the zero leakage of sealing is realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a magnetic liquid sealing device for high temperature resistant agitator to the rotary part to high temperature high pressure agitator is expected, provides based on magnetic liquid sealed special sealing device.
In order to achieve the purpose, the utility model provides a magnetic liquid sealing device for a high temperature resistant stirrer, which is characterized by comprising a flange seat, a sealing seat and a magnetic conduction shaft sleeve; the top of the magnetic conduction shaft sleeve is provided with a locking sleeve and is fixed on the rotating shaft through the locking sleeve; the magnetic conduction shaft sleeve is sleeved inside the flange seat and the sealing seat;
the flange seat is arranged on the stirrer seat, and the sealing seat is fixed on the flange seat through a sealing seat screw;
a cooling water tank is arranged on the flange seat; the cooling water tank is an annular groove; a first cooling water tank sealing ring and a second cooling water tank sealing ring are respectively arranged on the inner side and the outer side of the cooling water tank, so that the inner side and the outer side of the cooling water tank are sealed;
a cooling water inlet is formed in one side of the bottom of the sealing seat and communicated with the cooling water tank; a cooling water outlet is formed in one side of the top of the sealing seat and communicated with a cooling water channel in the sealing seat, and the cooling water channel is communicated with the cooling water tank; cooling water enters the cooling water tank through the cooling water inlet, then flows into the cooling water channel, and finally flows out through the cooling water outlet;
a sealing part is arranged at the top of the flange seat;
a sealed rotary installation cavity is arranged between the sealing seat and the magnetic conduction shaft sleeve and is positioned above the blocking piece;
the bottom of the sealed rotary installation cavity is provided with a magnetic liquid sealing unit; the upper part of the sealed rotary installation cavity is provided with a bearing unit; the magnetic liquid sealing unit and the bearing unit are sleeved on the outer wall of the magnetic conduction shaft sleeve.
As a further improvement of the utility model, the blocking piece comprises a blocking ring I, a blocking ring and a blocking ring II; the bottom of the sealing seat is also provided with a pressure maintaining nitrogen port; the pressure maintaining nitrogen port is communicated with the blocking ring; introducing clean gas through the pressure maintaining nitrogen port, wherein the input pressure of the clean gas is greater than the medium pressure in the stirrer; and a blocking ring I and a blocking ring II are respectively arranged on the upper part and the lower part of the blocking ring.
As a further improvement of the utility model, a shaft seal ring is arranged between the flange seat and the magnetic-conducting shaft sleeve, and the shaft seal ring is sleeved on the outer wall of the magnetic-conducting shaft sleeve; the shaft seal ring is positioned below the blocking piece.
As a further improvement of the utility model, the magnetic liquid sealing unit comprises a pole shoe I, a permanent magnet I, a pole shoe II, a permanent magnet II and a pole shoe III in sequence; and a certain gap is formed between the magnetic liquid sealing unit and the magnetic conduction shaft sleeve, and magnetic liquid is filled in the gap to form magnetic liquid seal.
As a further improvement of the present invention, a gasket is disposed on the top of the magnetic liquid sealing unit; a bearing unit is arranged above the gasket.
As a further improvement of the present invention, the bearing unit includes a first bearing and a second bearing; an outer bushing and an inner bushing are arranged between the first bearing and the second bearing; the outer bushing is propped between the outer steel rings of the 2 bearings, and the inner bushing is propped between the inner steel rings of the 2 bearings; and an inner steel ring at the top of the second bearing is fixed through a spring retainer ring for a shaft.
Furthermore, a gland is arranged at the top of the sealed rotary installation cavity and fixed on the sealing seat through gland screws.
As a further improvement, the bottom inner side of the magnetic conduction shaft sleeve is provided with a plurality of O-shaped rings of the rotation shaft.
The utility model relates to a among the magnetic fluid sealing device for high temperature resistant agitator, flange seat and seal receptacle and inner structure are fixed, and the magnetic conduction axle sleeve passes through the lock sleeve to be fixed on the rotation axis, guarantees whole sealed steady operation through first bearing, second bearing.
The utility model relates to a magnetic liquid sealing device for high temperature resistant agitator, through setting up cooling device, and hinder the sealing, keep apart and cool off inside medium and magnetic liquid seal, solved the sealed problem that traditional magnetic liquid seal can not work under high temperature high pressure condition.
Drawings
Fig. 1 is a main sectional view of the magnetic liquid sealing device for the high temperature resistant stirrer of the present invention.
Detailed Description
As shown in fig. 1, the present invention is a magnetic liquid sealing device for a high temperature resistant agitator, which solves the disadvantage that the conventional magnetic liquid sealing device cannot be used under high temperature and high pressure.
The utility model relates to a magnetic liquid sealing device for a high temperature resistant stirrer, which comprises a flange seat 2, a sealing seat 25 and a magnetic conduction shaft sleeve 28; the top of the magnetic conduction shaft sleeve 28 is provided with a locking sleeve 21 and is fixed on the rotating shaft through the locking sleeve 21; the magnetic conduction shaft sleeve 28 is sleeved inside the flange seat 2 and the sealing seat 25.
The flange seat 2 is arranged on the stirrer seat and is provided with a flange seat O-shaped ring 1 for sealing the end surface; the sealing seat 25 is fixed on the flange seat 2 through a sealing seat screw 32; a cooling water tank is arranged on the flange seat 2; the cooling water tank is an annular groove; and a first cooling water tank sealing ring 5 and a second cooling water tank sealing ring 29 are respectively arranged on the inner side and the outer side of the cooling water tank, so that the inner side and the outer side of the cooling water tank are sealed. A cooling water inlet 101 is formed in one side of the bottom of the sealing seat 25, and the cooling water inlet 101 is communicated with the cooling water tank, so that the flange seat 2 can be cooled; a cooling water outlet 102 is formed in one side of the top of the sealing seat 25, the cooling water outlet 102 is communicated with a cooling water channel in the sealing seat 25, and the cooling water channel is communicated with the cooling water tank, so that cooling water can flow into the cooling water channel to cool the sealing seat 25 after entering the cooling water tank through the cooling water inlet 101, and finally flows out through the cooling water outlet 102, thereby realizing the flow of cooling water.
A shaft seal ring 3 is arranged between the flange seat 2 and the magnetic conduction shaft sleeve 28; on one hand, the shaft seal ring 3 can block dust media in the stirrer, and on the other hand, the shaft seal ring can play a role in reducing pressure; a shaft seal O-shaped ring 4 is also arranged between the shaft seal ring 3 and the flange seat 2; because the excircle of the shaft sealing ring 3 has a certain gap with the flange seat, an O-shaped ring 4 is required to be added to prevent internal medium gas from passing through the contact gap.
A blocking piece is arranged at the top of the flange seat 2 and comprises a blocking ring I7, a blocking ring 8 and a blocking ring II 9; the bottom of the sealing seat 25 is also provided with a pressure maintaining nitrogen port 100; the pressure maintaining nitrogen port 100 is communicated with the blocking ring 8; nitrogen or other clean gas is introduced through the pressure maintaining nitrogen port 100, and the air pressure is greater than the medium pressure in the stirrer; the upper part and the lower part of the blocking ring 8 are respectively provided with a blocking ring I7 and a blocking ring II 9, the internal pressure can be ensured to be always in a high-pressure state by arranging the blocking ring I7 and the blocking ring II 9, and the internal medium is ensured to be contacted with the upper sealing part of the sealing seat 25.
A sealed rotary installation cavity is arranged between the sealing seat 25 and the magnetic conduction shaft sleeve 28 and is positioned above the blocking piece, and internal media can be prevented from flowing into the sealed rotary installation cavity through the blocking piece.
The bottom of the sealed rotary installation cavity is provided with a magnetic liquid sealing unit, and the magnetic liquid sealing unit comprises a pole shoe I10, a permanent magnet I11, a pole shoe II 12, a permanent magnet II 13 and a pole shoe III 14; a certain gap is formed between the magnetic liquid sealing unit and the magnetic conduction shaft sleeve 28, and the magnetic liquid is filled in the gap, so that magnetic liquid sealing is formed, and the sealing of a reaction medium in the stirrer can be realized. The sealing piece can ensure that the internal medium is not contacted with the magnetic liquid in a sealing way, and the service life of the magnetic liquid is prolonged.
A gasket 15 is arranged on the top of the magnetic liquid sealing unit, and the magnetic liquid sealing unit can be fixed at the bottom of the sealed rotary installation cavity through the gasket 15. Above the washer 15, a bearing unit is provided.
The bearing unit comprises a first bearing 16 and a second bearing 17, wherein an outer bushing 23 and an inner bushing 24 are arranged between the first bearing 16 and the second bearing 17; the outer bushing 23 is pressed between the outer steel rings of the 2 bearings, and the inner bushing 24 is pressed between the inner steel rings of the 2 bearings; the top inner steel ring of the second bearing 17 is fixed through a shaft spring retainer ring 18; the top of the sealed rotary installation cavity is provided with a gland 19, and the gland 19 is fixed on the sealing seat 25 through a gland screw 31. Still be equipped with lug 20 on the gland 19, it is convenient right the utility model discloses carry out the handling.
A plurality of rotating shaft O-shaped rings 30 are arranged on the inner side of the bottom of the magnetic conduction shaft sleeve 28.
The utility model relates to a among the magnetic fluid sealing device for high temperature resistant agitator, flange seat 2 and seal receptacle 25 and inner structure are fixed, and magnetic conduction axle sleeve 28 passes through lock sleeve 21 to be fixed on the rotation axis, guarantees whole sealed steady operation through first bearing 16, second bearing 17.
The utility model relates to a magnetic liquid sealing device for high temperature resistant agitator, through setting up cooling device, and hinder the sealing, keep apart and cool off inside medium and magnetic liquid seal, solved the sealed problem that traditional magnetic liquid seal can not work under high temperature high pressure condition.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention, and such equivalents and substitutions are intended to be included within the scope of the invention as defined by the appended claims.
Claims (8)
1. A magnetic liquid sealing device for a high-temperature-resistant stirrer is characterized by comprising a flange seat, a sealing seat and a magnetic conduction shaft sleeve; the top of the magnetic conduction shaft sleeve is provided with a locking sleeve and is fixed on the rotating shaft through the locking sleeve; the magnetic conduction shaft sleeve is sleeved inside the flange seat and the sealing seat;
the flange seat is arranged on the stirrer seat, and the sealing seat is fixed on the flange seat through a sealing seat screw;
a cooling water tank is arranged on the flange seat; the cooling water tank is an annular groove; a first cooling water tank sealing ring and a second cooling water tank sealing ring are respectively arranged on the inner side and the outer side of the cooling water tank, so that the inner side and the outer side of the cooling water tank are sealed;
a cooling water inlet is formed in one side of the bottom of the sealing seat and communicated with the cooling water tank; a cooling water outlet is formed in one side of the top of the sealing seat and communicated with a cooling water channel in the sealing seat, and the cooling water channel is communicated with the cooling water tank; cooling water enters the cooling water tank through the cooling water inlet, then flows into the cooling water channel, and finally flows out through the cooling water outlet;
a sealing part is arranged at the top of the flange seat;
a sealed rotary installation cavity is arranged between the sealing seat and the magnetic conduction shaft sleeve and is positioned above the blocking piece;
the bottom of the sealed rotary installation cavity is provided with a magnetic liquid sealing unit; the upper part of the sealed rotary installation cavity is provided with a bearing unit; the magnetic liquid sealing unit and the bearing unit are sleeved on the outer wall of the magnetic conduction shaft sleeve.
2. The magnetic liquid sealing device for the high-temperature-resistant stirrer according to claim 1, wherein the blocking piece comprises a blocking ring I, a blocking ring and a blocking ring II; the bottom of the sealing seat is also provided with a pressure maintaining nitrogen port; the pressure maintaining nitrogen port is communicated with the blocking ring; introducing clean gas through the pressure maintaining nitrogen port, wherein the input pressure of the clean gas is greater than the medium pressure in the stirrer; and a blocking ring I and a blocking ring II are respectively arranged on the upper part and the lower part of the blocking ring.
3. The magnetic liquid sealing device for the high-temperature-resistant stirrer according to claim 1, wherein a shaft sealing ring is arranged between the flange seat and the magnetic-conductive shaft sleeve, and the shaft sealing ring is sleeved on the outer wall of the magnetic-conductive shaft sleeve; the shaft seal ring is positioned below the blocking piece.
4. The magnetic liquid sealing device for the high-temperature-resistant stirrer according to claim 1, wherein the magnetic liquid sealing unit sequentially comprises a pole shoe I, a permanent magnet I, a pole shoe II, a permanent magnet II and a pole shoe III; and a certain gap is formed between the magnetic liquid sealing unit and the magnetic conduction shaft sleeve, and magnetic liquid is filled in the gap to form magnetic liquid seal.
5. The magnetic liquid sealing device for the high-temperature-resistant stirrer according to claim 1, wherein a gasket is arranged at the top of the magnetic liquid sealing unit; a bearing unit is arranged above the gasket.
6. The magnetic fluid sealing device for a high-temperature resistant stirrer according to claim 1, wherein the bearing unit comprises a first bearing, a second bearing; an outer bushing and an inner bushing are arranged between the first bearing and the second bearing; the outer bushing is propped between the outer steel rings of the 2 bearings, and the inner bushing is propped between the inner steel rings of the 2 bearings; and an inner steel ring at the top of the second bearing is fixed through a spring retainer ring for a shaft.
7. The magnetic liquid sealing device for the high-temperature-resistant stirrer according to claim 1, wherein a gland is arranged at the top of the sealed rotary installation cavity, and the gland is fixed on the sealing seat through a gland screw.
8. The magnetic liquid sealing device for the high-temperature resistant stirrer according to claim 1, wherein a plurality of rotating shaft O-rings are arranged on the inner side of the bottom of the magnetic conducting shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240544.6U CN211913647U (en) | 2020-03-02 | 2020-03-02 | Magnetic liquid sealing device for high-temperature-resistant stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240544.6U CN211913647U (en) | 2020-03-02 | 2020-03-02 | Magnetic liquid sealing device for high-temperature-resistant stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211913647U true CN211913647U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020240544.6U Active CN211913647U (en) | 2020-03-02 | 2020-03-02 | Magnetic liquid sealing device for high-temperature-resistant stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211913647U (en) |
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2020
- 2020-03-02 CN CN202020240544.6U patent/CN211913647U/en active Active
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