CN201763958U - Radial magnetic fluid sealing structure of through-flow turbine - Google Patents
Radial magnetic fluid sealing structure of through-flow turbine Download PDFInfo
- Publication number
- CN201763958U CN201763958U CN2010202773209U CN201020277320U CN201763958U CN 201763958 U CN201763958 U CN 201763958U CN 2010202773209 U CN2010202773209 U CN 2010202773209U CN 201020277320 U CN201020277320 U CN 201020277320U CN 201763958 U CN201763958 U CN 201763958U
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- CN
- China
- Prior art keywords
- magnet
- magnetic fluid
- fluid sealing
- rotating shaft
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a radial magnetic fluid sealing structure of a through-flow turbine, which is designed to improve the sealing property of the rotating shaft bearing of the through-flow turbine. A rotating wheel (5) is mounted at the end part of the turbine rotating shaft, and a first magnetic fluid sealing mechanism (6) is mounted between the rotating wheel (5) and a second guide bearing (4). The first magnetic fluid sealing mechanism (6) comprises a magnetic fluid (9), magnetizers and a permanent magnet (11), wherein a first magnetizer (10) and a second magnetizer (10') are mounted inside a tubular casing, the permanent magnet (11) is arranged between the first magnetizer (10) and the second magnetizer (10'), gaps are formed between the first magnetizer (10) and the turbine rotating shaft (12) and between the second magnetizer (10') and the turbine rotating shaft (12), the gaps are filled with the magnetic fluid (9), and the magnetic fluid (9) is collected in the gaps between the magnetic conductors and the rotating shaft to form a sealing structure under the limitation of the two magnetic conductors. A second magnetic fluid sealing mechanism is arranged between a first guide bearing (2) and an oil receiver (1) and has the same structure as the first magnetic fluid sealing mechanism (6).
Description
Technical field
The utility model relates to the sealing configuration of water turbine rotating shaft.
Background technique
The sand wear of tubular turbine is a kind of strong mode of failure, and it can make the flow passage components of tubular turbine be subjected in various degree destruction, serious wearing and tearing even the component of tubular turbine can't be repaired.Yet solve the problem of silt particle to bearing wear, main by selecting rational abrasive-resistant material.This method is the cost height not only, and anti-wear effect is not too remarkable.
Summary of the invention
The purpose of this utility model is to improve the sealability of tubular turbine shaft bearing.
The utility model is a radially magnetic fluid sealing structure of tubular turbine, runner 5 is installed in the end of water turbine rotating shaft, magnet fluid sealing mechanism 6 is installed between the runner 5 and second guide bearing 4, magnet fluid sealing mechanism 6 comprises magnetic fluid 9, magnet case, permanent magnet 11, wherein in tubular shell, install first magnet case 10 and second magnet case 10 ', first magnet case 10 and second magnet case 10 ' between permanent magnet 11 is installed, first magnet case 10 and and second magnet case 10 ' and water turbine rotating shaft 12 between gapped, be full of magnetic fluid 9 during this time in the crack, magnetic fluid 9 is under the constraint of the magnetic force of above-mentioned two magnet cases, accumulate between the gap between magnet case and the axle, form sealing configuration.Between first guide bearing 2 and lubricant receiver 1, a magnet fluid sealing mechanism identical with magnet fluid sealing mechanism 6 structures is installed also.
The utility model adopts the magnet fluid sealing bearing technology, utilize the magnetic liquid can be by the characteristic of magnetic control, utilize the annular permanent-magnet body to produce the Magnetic field distribution of a ring-type at the rotation axis seal parts, thereby magnetic liquid can be constrained among the magnetic field and form the "O of magnetic liquid, and wearing and tearing can not accomplished long-life dynamic seal (packing).After adopting this structure, the tubular turbine of being studied, obviously prolong working life, and solved always puzzlement tubular turbine for many years under water bearing advance husky problem.
Description of drawings
Fig. 1 is that the utility model is the radially integral installation figure of magnetic fluid sealing structure of tubular turbine, and Fig. 2 is the structural drawing of magnetic fluid sealing structure, and reference character and corresponding name are called: lubricant receiver 1, first guide bearing 2, thrust-bearing 3, the second guide bearings 4, runner 5, magnetic fluid sealing structure 6, water distributor 7, the magnetic line of force 8, magnetic fluid 9, the first magnet cases 10, the second magnet cases 10 ', permanent magnet 11, water turbine rotating shaft 12.
Embodiment
As Fig. 1, shown in Figure 2, the utility model is a radially magnetic fluid sealing structure of tubular turbine, runner 5 is installed in the end of water turbine rotating shaft, magnet fluid sealing mechanism 6 is installed between the runner 5 and second guide bearing 4, magnet fluid sealing mechanism 6 comprises magnetic fluid 9, magnet case, permanent magnet 11, wherein in tubular shell, install first magnet case 10 and second magnet case 10 ', first magnet case 10 and second magnet case 10 ' between permanent magnet 11 is installed, first magnet case 10 and and second magnet case 10 ' and water turbine rotating shaft 12 between gapped, be full of magnetic fluid 9 during this time in the crack, magnetic fluid 9 is under the constraint of the magnetic force of above-mentioned two magnet cases, accumulate between the gap between magnet case and the axle, form sealing configuration.Between first guide bearing 2 and lubricant receiver 1, a magnet fluid sealing mechanism identical with magnet fluid sealing mechanism 6 structures is installed also.
As shown in Figure 2, first magnet case 10 and second magnet case 10 ' and water turbine change gap between 12, be full of magnetic fluid 9, magnetic fluid 9 accumulates between the gap between magnet case and the water turbine rotating shaft 12 under the constraint of magnet case magnetic force, does not hold and can not scatter.When water turbine rotating shaft 12 is rotated, drive magnetic fluid 9 with respect to permanent magnet 11, first magnet case 10 and second magnet case 10 ' rotation, the magnetic line of force that this moment, magnetic field produced make magnetic fluid 9 be full of first magnet case 10 and second magnet case 10 ' the top and water turbine rotating shaft 12 between, thereby play seal action.When the structure radial dimension is big, easily adopt this structure.
Claims (1)
1. tubular turbine magnetic fluid sealing structure radially, runner (5) is installed in the end of water turbine rotating shaft, it is characterized in that magnet fluid sealing mechanism (6) is installed between runner (5) and second guide bearing (4), magnet fluid sealing mechanism (6) comprises magnetic fluid (9), magnet case, permanent magnet (11), first magnet case (10) and second magnet case (10 ') wherein are installed in tubular shell, between first magnet case (10) and second magnet case (10 '), permanent magnet (11) is installed, first magnet case (10) and and second magnet case (10 ') and water turbine rotating shaft (12) between gapped, be full of magnetic fluid (9) during this time in the crack, magnetic fluid (9) is under the constraint of the magnetic force of above-mentioned two magnet cases, accumulate between the gap between magnet case and the axle, form sealing configuration; Between first guide bearing (2) and lubricant receiver (1), also install one with the identical magnet fluid sealing mechanism of structure of magnet fluid sealing mechanism (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202773209U CN201763958U (en) | 2010-07-26 | 2010-07-26 | Radial magnetic fluid sealing structure of through-flow turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202773209U CN201763958U (en) | 2010-07-26 | 2010-07-26 | Radial magnetic fluid sealing structure of through-flow turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763958U true CN201763958U (en) | 2011-03-16 |
Family
ID=43716563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202773209U Expired - Fee Related CN201763958U (en) | 2010-07-26 | 2010-07-26 | Radial magnetic fluid sealing structure of through-flow turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763958U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649854A (en) * | 2016-03-23 | 2016-06-08 | 西华大学 | Water turbine and turbine guide bearing thereof |
| CN112793757A (en) * | 2021-02-07 | 2021-05-14 | 武汉波依迈科技有限公司 | Pod propeller |
| CN112829909A (en) * | 2021-02-04 | 2021-05-25 | 武汉波依迈科技有限公司 | Sealed nacelle propeller |
-
2010
- 2010-07-26 CN CN2010202773209U patent/CN201763958U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649854A (en) * | 2016-03-23 | 2016-06-08 | 西华大学 | Water turbine and turbine guide bearing thereof |
| CN112829909A (en) * | 2021-02-04 | 2021-05-25 | 武汉波依迈科技有限公司 | Sealed nacelle propeller |
| CN112793757A (en) * | 2021-02-07 | 2021-05-14 | 武汉波依迈科技有限公司 | Pod propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130726 |