CN206468816U - A kind of high-speed centrifugal compressor magnetic fluid seal device - Google Patents
A kind of high-speed centrifugal compressor magnetic fluid seal device Download PDFInfo
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- CN206468816U CN206468816U CN201621460307.0U CN201621460307U CN206468816U CN 206468816 U CN206468816 U CN 206468816U CN 201621460307 U CN201621460307 U CN 201621460307U CN 206468816 U CN206468816 U CN 206468816U
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- pole shoe
- ring
- seal receptacle
- bearing
- axle sleeve
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Abstract
The application provides a kind of high-speed centrifugal compressor magnetic fluid seal device, including seal receptacle, and seal receptacle is fixedly connected with gland by interior hexagonal attachment screw；Live spindle is crossed at the center of seal receptacle, and magnetic conduction axle sleeve is cased with live spindle, left-to-right on magnetic conductive axis set to be disposed with gland, left packing ring, left bearing, left pole shoe, permanent magnet, right pole shoe, right bearing, right packing ring.Left pole shoe is respectively arranged with some annular grooves being arranged side by side with right pole shoe close to the side of magnetic conduction axle sleeve, and magnetic liquid is filled with annular groove, and left-hand screw groove, right spiral are carved with magnetic conductive axis set；The left-hand screw groove, left pole shoe constitute left-hand screw sealing in seal receptacle, and the right spiral, right pole shoe constitute right-hand screw sealing in seal receptacle.The application compensate for the deficiency of mechanical seal and labyrinth seal, it is adaptable to which high rotating speed is used with the place for being not allow for dielectric leakage, is fully achieved zero leakage, it is therefore prevented that the harm to environment, is reduced cost.
Description
Technical field
The utility model is related to field of mechanical technique, more particularly to a kind of high-speed centrifugal compressor magnetic fluid sealing
Device.
Background technology
High-speed centrifugal compressor is applied to the fields such as oil, chemical industry, generating, fuel gas transmission with magnetic fluid seal device
The sealing of pumped (conveying) medium gas.During high-speed centrifugal compressor operating, because speed is high, installing space is small, high speed machine sealing nothing
Method is installed, and general to use non-contact type labyrinth seal, non-contact type labyrinth seal is formed very between revolving part and fixture
Small labyrinth gap, is constantly shunk by air-flow and expands to realize sealing, although be simple in construction, but labyrinth gap only increases
Circulating resistance, will not fundamentally prevent the effusion of gas medium, and the gas leaked enters gear-box can cause gear
Inner box-machine tool oil pressure is raised, and causes the leakage of machinery oil, this prevents high-speed centrifugal compressor from being applied well.
Utility model content
The purpose of this utility model is that the defect for solving above-mentioned prior art presence advantageously accounts for high turn there is provided one kind
Speed and high-speed centrifugal compressor magnetic fluid seal device the problem of leakage.
A kind of high-speed centrifugal compressor magnetic fluid seal device, including：Seal receptacle, the seal receptacle leads to gland
Interior hexagonal attachment screw is crossed to be fixedly connected；Live spindle is crossed at the center of seal receptacle, and magnetic conduction axle sleeve is cased with live spindle,
In the cavity that seal receptacle and gland are constituted, magnetic conductive axis put and be provided with left bearing, right bearing, between left bearing and right bearing
Magnetic conductive axis, which are put, is provided with left pole shoe, right pole shoe, and permanent magnet is provided with the magnetic conductive axis set between left pole shoe and right pole shoe,
Ring-shaped water jacket is provided between the inwall of left pole shoe, right pole shoe and seal receptacle；
The left pole shoe is respectively arranged with some annular grooves being arranged side by side with right pole shoe close to the side of magnetic conduction axle sleeve,
Magnetic liquid is filled with the annular groove, using the annular groove being arranged side by side as cut-off rule, in annular groove
The left side, magnetic conductive axis, which are put, is carved with left-hand screw groove, and right spiral is carved with the right of annular groove, magnetic conductive axis set；The left spiral shell
Spin slot, left pole shoe constitute left-hand screw sealing in seal receptacle, and it is close that the right spiral, right pole shoe constitute right-hand screw in seal receptacle
Envelope.
Further, high-speed centrifugal compressor magnetic fluid seal device as described above, is set in seal receptacle
There are left axle check ring, the right axle check ring for fixing bearing inner ring, the inner ring of the left bearing is embedded in left axle
With in check ring, the inner ring of right bearing is embedded in right axle check ring.
Further, high-speed centrifugal compressor magnetic fluid seal device as described above, is set in seal receptacle
There are left packing ring, the right packing ring for fixing bearing outer ring, the outer ring of the left bearing is embedded in left packing ring, the outer ring of right bearing
It is embedded in right packing ring.
Further, high-speed centrifugal compressor magnetic fluid seal device as described above, is set on seal receptacle
There are cooling water inlet and coolant outlet, left water inlet, right water inlet, left delivery port, right water outlet are provided with ring-shaped water jacket
Mouthful；The cooling water inlet is connected with left water inlet, right water inlet, and coolant outlet is connected with left delivery port, right delivery port.
Further, high-speed centrifugal compressor magnetic fluid seal device as described above, in ring-shaped water jacket and a left side
Sealing ring is provided between pole shoe, between ring-shaped water jacket and right pole shoe.
Beneficial effect：
The high-speed centrifugal compressor magnetic fluid seal device that the utility model is provided, compensate for mechanical seal and comb
Tooth is sealedly not enough, it is adaptable to which high rotating speed is used with the place for being not allow for dielectric leakage, fully achieves zero leakage, it is therefore prevented that
Harm to environment, reduces cost.
Brief description of the drawings
Fig. 1 is the utility model high-speed centrifugal compressor magnetic fluid seal device structural representation；
In figure：
Hexagonal attachment screw in 1- magnetic conduction axle sleeves, 2-, 3- left axle check rings, 4- glands, the left packing rings of 5-, 6- left axles
Hold, the left pole shoes of 7-, 8- sealing rings, 9- ring-shaped water jackets, the left water inlets of 91-, the right water inlets of 92-, the left delivery ports of 93-, the right water outlets of 94-
Mouthful, 10- permanent magnets, the right pole shoes of 11-, the right packing rings of 12-, 13- right bearings, 14- seal receptacles, 141- cooling water inlets, 142- coolings
Water out, 15- right axle check rings, 16- right spirals, 17- left-hand screw grooves, 18- holding screws, 19- annular grooves.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below technical side in the utility model
Case is clearly and completely described, it is clear that described embodiment is a part of embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
Fig. 1 is the utility model high-speed centrifugal compressor magnetic fluid seal device structural representation, such as Fig. 1 institutes
Show, a kind of high-speed centrifugal compressor magnetic fluid seal device that the utility model is provided, including：Seal receptacle 14, it is described
Seal receptacle 14 is fixedly connected with gland 4 by interior hexagonal attachment screw 2；Live spindle is crossed at the center of seal receptacle 14, in rotation
Magnetic conduction axle sleeve 1 is cased with main shaft, left bearing 6, the right side are provided with the cavity that seal receptacle 14 and gland 4 are constituted, on magnetic conduction axle sleeve 1
Be provided with left pole shoe 7, right pole shoe 11 on bearing 13, the magnetic conduction axle sleeve 1 between left bearing 6 and right bearing 13, left pole shoe 7 with
Be provided with permanent magnet 10 on magnetic conduction axle sleeve 1 between right pole shoe 11, left pole shoe 7, right pole shoe 11 and seal receptacle 14 inwall it
Between be provided with ring-shaped water jacket 9.
The left pole shoe 7 is respectively arranged with some annulars being arranged side by side with right pole shoe 11 close to the side of magnetic conduction axle sleeve 1
Groove 19, magnetic liquid is filled with the annular groove 19, is cut-off rule with the annular groove 19 being arranged side by side,
Left-hand screw groove 17 is carved with the left side of annular groove 19, magnetic conduction axle sleeve 1, is carved with the right of annular groove 19, magnetic conduction axle sleeve 1
Right spiral 16；The left-hand screw groove 17, left pole shoe 7 constitute left-hand screw sealing, the right spiral 16, right pole in seal receptacle
Boots 11 constitute right-hand screw sealing in seal receptacle.
Further, in order to improve the sealing of the device, it is provided with seal receptacle 14 for fixing bearing inner ring
Left axle check ring 3, right axle check ring 15, the inner ring of the left bearing 6 are embedded in left axle check ring 3, right
The inner ring of bearing 13 is embedded in right axle check ring 15.
Further, in order to further improve the sealing of the device, it is provided with seal receptacle 14 for fixing bearing
Left packing ring 5, the right packing ring 12 of outer ring, the outer ring of the left bearing 6 are embedded in left packing ring 5, and the outer ring of right bearing 13 is embedded in
In right packing ring 12.
Further, cooling water inlet 141 and coolant outlet 142 are provided with seal receptacle 14, on ring-shaped water jacket 9
It is provided with left water inlet 91, right water inlet 92, left delivery port 93, right delivery port 94；The cooling water inlet 141 and left water inlet
91st, right water inlet 92 is connected, and coolant outlet 142 is connected with left delivery port 93, right delivery port 94.
Further, it is provided with sealing ring between ring-shaped water jacket 9 and left pole shoe 7, between ring-shaped water jacket 9 and right pole shoe 11
8。
As shown in figure 1, high-speed centrifugal compressor magnetic fluid seal device, belongs to mechanical rotatory sealing, for for
For mechanical seal and the weak point of labyrinth seal, it is adaptable to which high rotating speed is used with the place for being not allow for dielectric leakage, and this is close
Seal apparatus is by seal receptacle 14, magnetic conduction axle sleeve 1, ring-shaped water jacket 9, left pole shoe 7, right pole shoe 11, permanent magnet 10, interior hexagonal attachment screw
2nd, left axle check ring 3, right axle check ring 15, gland 4, left packing ring 5, right packing ring 12, sealing ring 8 are constituted.Seal receptacle
14 are fixed on casing by interior hexagonal attachment screw 2, and gland 4, left packing ring 5, a left side are from left to right sequentially arranged with seal receptacle 14
Bearing 6, left pole shoe 7, permanent magnet 10, right pole shoe 11, right bearing 13, right packing ring 12, the left packing ring 5, left bearing 6, left pole shoe
7th, permanent magnet 10, right pole shoe 11, right bearing 13, right packing ring 12 are fixed in seal receptacle 14 by interior hexagonal attachment screw 2, magnetic conduction
Axle sleeve 1 is fixed in live spindle by holding screw 18, and magnetic conduction axle sleeve 1, permanent magnet 10, left pole shoe 7 and right pole shoe 11 are constituted
Magnetic fluid sealing, left pole shoe 7 and right pole shoe 11 are provided with annular water tank, can be passed through cooling water cold to magnetic fluid sealing progress
But.
Operation principle：Right spiral 16 and right packing ring 12, the composition helixseal of right pole shoe 11 first on magnetic conduction axle sleeve 1,
Under the circumference of the high-speed rotation, by pumping theory, effectively the gas of magnetic fluid sealing position media end and impurity can be arranged
Go out, the media end formation micro-vacuum in rotatory sealing gap reduces the bearing capacity of magnetic fluid sealing；On magnetic conduction axle sleeve 1
Left-hand screw groove 17 and left packing ring 5, the composition helixseal of left pole shoe 7, under the circumference of the high-speed rotation, by pumping theory, can have
Effect discharges the gas of magnetic fluid sealing position atmosphere end and impurity, the atmosphere end formation micro-vacuum in rotatory sealing gap；
Magnetic conduction axle sleeve 1, permanent magnet 10, left pole shoe 7 and right pole shoe 11 composition magnetic fluid sealing, magnetic liquid be full of by magnetic conduction axle sleeve 1,
The gap that permanent magnet 10, left pole shoe 7 and right pole shoe 11 are constituted, utilizes response characteristic of the magnetic liquid to magnetic field, high-speed centrifugal
Magnetic liquid radial seal can be formed during compressor operating, zero leakage is fully achieved；Specifically, it is contemplated that high-speed centrifugal pressure
The rotating speed of contracting machine is high, and magnetic fluid sealing has larger caloric value, and cooling water inlet 141 and cooling are provided with seal receptacle 14
Water out 142, cooling water is flowed into from cooling water inlet 141, into ring-shaped water jacket 9, passes through the He of left water inlet 91 of ring-shaped water jacket 9
Right water inlet 92 is flowed into the annular groove of left pole shoe 7 and right pole shoe 11, left delivery port 93 and right water outlet by ring-shaped water jacket 9
Mouth 94 flows out, and is then flowed out by the coolant outlet 142 of seal receptacle 14, so that the heat that magnetic fluid sealing itself is produced
Take away, it is ensured that the normal of magnetic fluid sealing is used.By above measure, solving tradition machinery sealing can not install and broach
The problem of sealing leak amount is big.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (5)
1. a kind of high-speed centrifugal compressor magnetic fluid seal device, it is characterised in that including：Seal receptacle (14), it is described
Seal receptacle (14) is fixedly connected with gland (4) by interior hexagonal attachment screw (2)；Cross rotation master in the center of seal receptacle (14)
Axle, is cased with magnetic conduction axle sleeve (1) in live spindle, in the cavity that seal receptacle (14) and gland (4) are constituted, magnetic conduction axle sleeve (1)
On be provided with left bearing (6), right bearing (13), be provided with the magnetic conduction axle sleeve (1) between left bearing (6) and right bearing (13)
Permanent magnet is provided with left pole shoe (7), right pole shoe (11), the magnetic conduction axle sleeve (1) between left pole shoe (7) and right pole shoe (11)
(10) ring-shaped water jacket (9), is provided between the inwall of left pole shoe (7), right pole shoe (11) and seal receptacle (14)；
The left pole shoe (7) is respectively arranged with some rings being arranged side by side with right pole shoe (11) close to the side of magnetic conduction axle sleeve (1)
Connected in star (19), magnetic liquid is filled with the annular groove (19), is with the annular groove (19) being arranged side by side
Left-hand screw groove (17), the right side in annular groove (19) are carved with cut-off rule, the left side, magnetic conduction axle sleeve (1) in annular groove (19)
Right spiral (16) is carved with side, magnetic conduction axle sleeve (1)；The left-hand screw groove (17), left pole shoe (7) constitute left spiral shell in seal receptacle
Rotation sealing, the right spiral (16), right pole shoe (11) constitute right-hand screw sealing in seal receptacle.
2. high-speed centrifugal compressor magnetic fluid seal device according to claim 1, it is characterised in that in sealing
Left axle check ring (3), the right axle check ring (15), the left axle for fixing bearing inner ring are provided with seat (14)
The inner ring for holding (6) is embedded in left axle check ring (3), and the inner ring of right bearing (13) is embedded in right axle check ring (15)
It is interior.
3. high-speed centrifugal compressor magnetic fluid seal device according to claim 1, it is characterised in that in sealing
Left packing ring (5), the right packing ring (12) for fixing bearing outer ring are provided with seat (14), the outer ring of the left bearing (6) is inlayed
In left packing ring (5), the outer ring of right bearing (13) is embedded in right packing ring (12).
4. high-speed centrifugal compressor magnetic fluid seal device according to claim 1, it is characterised in that in sealing
Cooling water inlet (141) and coolant outlet (142) are provided with seat (14), left water inlet is provided with ring-shaped water jacket (9)
(91), right water inlet (92), left delivery port (93), right delivery port (94)；The cooling water inlet (141) and left water inlet
(91), right water inlet (92) connection, coolant outlet (142) is connected with left delivery port (93), right delivery port (94).
5. high-speed centrifugal compressor magnetic fluid seal device according to claim 1, it is characterised in that in annular
Sealing ring (8) is provided between water jacket (9) and left pole shoe (7), between ring-shaped water jacket (9) and right pole shoe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621460307.0U CN206468816U (en) | 2016-12-28 | 2016-12-28 | A kind of high-speed centrifugal compressor magnetic fluid seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621460307.0U CN206468816U (en) | 2016-12-28 | 2016-12-28 | A kind of high-speed centrifugal compressor magnetic fluid seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468816U true CN206468816U (en) | 2017-09-05 |
Family
ID=59711620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621460307.0U Active CN206468816U (en) | 2016-12-28 | 2016-12-28 | A kind of high-speed centrifugal compressor magnetic fluid seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468816U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606170A (en) * | 2017-09-30 | 2018-01-19 | 自贡兆强密封制品实业有限公司 | A kind of high temperature resistant vacuum reactor magnetic fluid seal device |
| CN107740865A (en) * | 2017-11-03 | 2018-02-27 | 广西科技大学 | A kind of cross staged device for sealing magnetic fluid |
| CN109114037A (en) * | 2018-10-30 | 2019-01-01 | 江苏优联环境发展有限公司 | No leakage sealing immersible pump |
| CN109595195A (en) * | 2018-12-31 | 2019-04-09 | 虞定生 | A kind of leak-proof sealing device for liquid pump |
| CN109595344A (en) * | 2019-01-24 | 2019-04-09 | 清华大学 | Magnetic fluid seal device with heat conductive rod and radiating sleeve |
| CN109751238A (en) * | 2019-02-22 | 2019-05-14 | 郑州沃华机械有限公司 | A kind of smelt gear pump and its sealing structure |
| CN111457100A (en) * | 2020-04-24 | 2020-07-28 | 中国矿业大学 | Axial and radial combined type magnetic liquid sealing structure |
| CN113357373A (en) * | 2021-07-14 | 2021-09-07 | 北京交通大学 | Pole shoe integrated magnetic liquid sealing device with cooling function |
| CN113357370A (en) * | 2021-07-14 | 2021-09-07 | 北京交通大学 | Magnetic liquid sealing device capable of adjusting number of pole teeth |
| CN113833858A (en) * | 2021-11-02 | 2021-12-24 | 北京交通大学 | Magnetic powder sealing liquid device with fluid dynamic pressure reverse conveying function |
| CN114110172A (en) * | 2021-12-03 | 2022-03-01 | 清华大学 | Magnetic liquid sealing device with surface texture |
| CN114483638A (en) * | 2022-02-28 | 2022-05-13 | 浙江省机电设计研究院有限公司 | Magnetic liquid sealing device for centrifugal pump |
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2016
- 2016-12-28 CN CN201621460307.0U patent/CN206468816U/en active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606170A (en) * | 2017-09-30 | 2018-01-19 | 自贡兆强密封制品实业有限公司 | A kind of high temperature resistant vacuum reactor magnetic fluid seal device |
| CN107606170B (en) * | 2017-09-30 | 2024-03-08 | 自贡兆强密封制品实业有限公司 | Magnetic liquid sealing device for high-temperature-resistant vacuum reactor |
| CN107740865B (en) * | 2017-11-03 | 2023-05-05 | 广西科技大学 | Cross-shaped stepped magnetic fluid sealing device |
| CN107740865A (en) * | 2017-11-03 | 2018-02-27 | 广西科技大学 | A kind of cross staged device for sealing magnetic fluid |
| CN109114037A (en) * | 2018-10-30 | 2019-01-01 | 江苏优联环境发展有限公司 | No leakage sealing immersible pump |
| CN109595195A (en) * | 2018-12-31 | 2019-04-09 | 虞定生 | A kind of leak-proof sealing device for liquid pump |
| CN109595344A (en) * | 2019-01-24 | 2019-04-09 | 清华大学 | Magnetic fluid seal device with heat conductive rod and radiating sleeve |
| CN109751238A (en) * | 2019-02-22 | 2019-05-14 | 郑州沃华机械有限公司 | A kind of smelt gear pump and its sealing structure |
| CN109751238B (en) * | 2019-02-22 | 2024-03-08 | 郑州沃华机械有限公司 | Melt gear pump and sealing structure thereof |
| CN111457100A (en) * | 2020-04-24 | 2020-07-28 | 中国矿业大学 | Axial and radial combined type magnetic liquid sealing structure |
| CN111457100B (en) * | 2020-04-24 | 2021-02-19 | 中国矿业大学 | Axial and radial combined type magnetic liquid sealing structure |
| CN113357373A (en) * | 2021-07-14 | 2021-09-07 | 北京交通大学 | Pole shoe integrated magnetic liquid sealing device with cooling function |
| CN113357370A (en) * | 2021-07-14 | 2021-09-07 | 北京交通大学 | Magnetic liquid sealing device capable of adjusting number of pole teeth |
| CN113833858B (en) * | 2021-11-02 | 2024-01-30 | 北京交通大学 | Magnetic powder sealing liquid device with fluid dynamic pressure feedback |
| CN113833858A (en) * | 2021-11-02 | 2021-12-24 | 北京交通大学 | Magnetic powder sealing liquid device with fluid dynamic pressure reverse conveying function |
| CN114110172B (en) * | 2021-12-03 | 2023-03-10 | 清华大学 | Magnetic liquid sealing device with surface texture |
| CN114110172A (en) * | 2021-12-03 | 2022-03-01 | 清华大学 | Magnetic liquid sealing device with surface texture |
| CN114483638A (en) * | 2022-02-28 | 2022-05-13 | 浙江省机电设计研究院有限公司 | Magnetic liquid sealing device for centrifugal pump |
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