CN103925229B - A kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing - Google Patents
A kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing Download PDFInfo
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- CN103925229B CN103925229B CN201410152276.1A CN201410152276A CN103925229B CN 103925229 B CN103925229 B CN 103925229B CN 201410152276 A CN201410152276 A CN 201410152276A CN 103925229 B CN103925229 B CN 103925229B
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- magnet rotor
- rotor assembly
- separation sleeve
- cavity
- main separation
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Abstract
The present invention relates to a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing, comprise interior magnet rotor assembly, outer magnet rotor assembly and main separation sleeve, main separation sleeve is between interior magnet rotor assembly and outer magnet rotor assembly, the end bifurcated of main separation sleeve is outer interlayer and internal portioning layer, and outer interlayer and internal portioning layer form the first cavity; The end of interior magnet rotor assembly is provided with first and waits to grind layer, the end of outer magnet rotor assembly is provided with second and waits to grind layer, first spacing of waiting to grind layer and internal portioning layer is less than the spacing of interior magnet rotor assembly and main separation sleeve, and the second spacing of waiting to grind layer and outer interlayer is less than the spacing of outer magnet rotor assembly and main separation sleeve.By detecting the force value of the first cavity, magnetic drive pump bearing abrasion condition can be judged before interior magnet rotor assembly or outer magnet rotor assembly and main separation sleeve occur to rub, magnet rotor assembly or the worn out main separation sleeve of outer magnet rotor assembly in prevention and medium leakage accident occurs, magnetic eddy current loss is less.
Description
Technical field
The present invention relates to a kind of leakage-preventing sealing device, be specifically related to a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing.
Background technique
Magnetic drive pump is a kind of without revealing pump, is closed in separation sleeve, without shaft seal problem, achieves hermetically sealed, the No leakage of pump by the liquid pumped.But the gap of the inside and outside magnet rotor of magnetic drive pump and separation sleeve is less, when magnetic drive pump bearing may wear to a certain degree, inside and outside magnet rotor and separation sleeve can be caused to rub, after separation sleeve is worn out, cause dielectric leakage, accidents caused.
At present, cause the generation of worn out separation sleeve situation for effectively monitoring the wearing and tearing of prevention magnetic drive pump bearing, magnetic coupling often adopts Double-layered isolation casing structure.Magnetic coupling Double-layered isolation casing structure forms primarily of outer magnet rotor assembly, interior magnet rotor assembly, outer separator, inner spacing collar, separation sleeve pedestal and pressure monitoring device.Outer separator, inner spacing collar and separation sleeve pedestal form a confined space, and in space, gas is pumped into vacuum state.After separation sleeve is worn out, confined space internal pressure rises rapidly, whether worn out can carry out detection and isolation cover by the pressure change in monitoring confined space.But concerning the separation sleeve of metal material, separation sleeve double layer construction designs, and the eddy current loss of magnetic coupling magnetic is multiplied.Between the inside and outside magnet rotor of magnetic coupling itself, gap is smaller, and Double-layered isolation casing structural design, increases the gap between inside and outside magnet rotor, affects the transmission efficiency of magnetic coupling.
Summary of the invention
Large deficiency is become in order to overcome the excessive and inside and outside magnet rotor assemblage gap of existing double-deck anti-leak magnetic coupling magnetic eddy current loss, the invention provides a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing, this magnetic coupling can not only monitor the abrasion condition of magnetic coupling separation sleeve, and magnetic eddy current loss is less, the assemblage gap of magnet rotor inside and outside magnetic coupling can not be increased.
The technological scheme that the present invention takes is: a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing, comprise interior magnet rotor assembly, outer magnet rotor assembly and main separation sleeve, described main separation sleeve is between described interior magnet rotor assembly and described outer magnet rotor assembly, the end bifurcated of described main separation sleeve is outer interlayer and internal portioning layer, and described outer interlayer and described internal portioning layer form the first cavity; The end of described interior magnet rotor assembly is provided with first and waits to grind layer, the end of described outer magnet rotor assembly is provided with second and waits to grind layer, described first spacing of waiting to grind layer and described internal portioning layer is less than the spacing of described interior magnet rotor assembly and described main separation sleeve, and the described second spacing of waiting to grind layer and described outer interlayer is less than the spacing of described outer magnet rotor assembly and described main separation sleeve.
In such scheme, also comprise a separation sleeve pedestal, described separation sleeve pedestal is positioned at the end of described magnet rotor assembly, described outer magnet rotor assembly and described main separation sleeve, described separation sleeve pedestal is provided with the second cavity, and the first cavity that described second cavity and described outer interlayer and described internal portioning layer are formed is mutually through.
In such scheme, the second cavity on described separation sleeve pedestal is provided with pressure monitoring device.In practical application, partial air in the first mutually through cavity and the second cavity is pumped by pore, close to vacuum state in first cavity and the second cavity, the change of the pressure in the first cavity or the second cavity can be detected by pressure-detecting device.
Further, described pressure monitoring device is pressure gauge.
Optimum, described pressure monitoring device comprises pressure transducer, central unit and alarm, and described pressure transducer is positioned on described second cavity, and described pressure transducer is connected with described alarm by described central unit.
The invention has the beneficial effects as follows, by detecting the force value in the first cavity or the second cavity, magnetic drive pump bearing abrasion condition can be judged before interior magnet rotor assembly or outer magnet rotor assembly and main separation sleeve occur to rub, magnet rotor assembly or the worn out main separation sleeve of outer magnet rotor assembly in prevention and medium leakage accident occurs, compared with existing Double-layered isolation casing magnetic coupling, magnetic eddy current loss is less, can not affect the assemblage gap of magnet rotor inside and outside magnetic coupling.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure, 1. the first cavity; 2. first wait to grind layer; 3. magnet rotor assembly in; 4. main separation sleeve; 5. outer magnet rotor assembly; 6. separation sleeve pedestal; 7. outer interlayer; 8. internal portioning layer; 10. the second cavity; 11. pressure monitoring devices; 12. second wait to grind layer; 13 pressure transducers; 14. central units; 15. alarms.
Embodiment
The structure of the embodiment of the present invention 1 as shown in Figure 1, this device mainly comprises: a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing, comprise interior magnet rotor assembly 3, outer magnet rotor assembly 5, main separation sleeve 4 and separation sleeve pedestal 6, described main separation sleeve 4 is between described interior magnet rotor assembly 3 and described outer magnet rotor assembly 5, the end bifurcated of described main separation sleeve 4 is outer interlayer 7 and internal portioning layer 8, and described outer interlayer 7 and described internal portioning layer 8 form the first cavity 9; Described separation sleeve pedestal 6 is positioned at the end of described magnet rotor assembly 3, described outer magnet rotor assembly 5 and described main separation sleeve 4, described separation sleeve pedestal 6 is provided with the second cavity 10, and the first cavity 9 that described second cavity 10 and described outer interlayer 7 and described internal portioning layer 8 are formed is mutually through.The end of described interior magnet rotor assembly 3 is provided with first and waits to grind layer 2, the end of described outer magnet rotor assembly 5 is provided with second and waits to grind layer 12, described first treats that mill layer 2 and the spacing of described internal portioning layer 8 are less than the spacing of described interior magnet rotor assembly 3 and described main separation sleeve 4, and the described second spacing of waiting to grind layer 12 and described outer interlayer 7 is less than the spacing of described outer magnet rotor assembly 5 and described main separation sleeve 4.The second cavity 10 on described separation sleeve pedestal 6 is provided with pressure gauge.In practical application, partial air in the first mutually through cavity and the second cavity is pumped by pore, close to vacuum state in first cavity and the second cavity, the change of the pressure in the first cavity or the second cavity can be detected by pressure-detecting device.
The present invention prevents the worn out separation sleeve of inside and outside magnet rotor, prevent the working procedure of dielectric leakage accident: when wearing and tearing occur magnetic drive pump bearing, interior magnet rotor assembly 3, there is eccentric rotary in outer magnet rotor assembly 5, bearing wear to a certain extent time, because the described first spacing of waiting to grind layer 2 and described internal portioning layer 8 is less than the spacing of described interior magnet rotor assembly 3 and described main separation sleeve 4, described second spacing of waiting to grind layer 12 and described outer interlayer 7 is less than the spacing of described outer magnet rotor assembly 5 and described main separation sleeve 4, so described first treats mill layer 2 and described internal portioning layer 8, described second treats mill layer 12 with described outer interlayer 7 prior to interior magnet rotor assembly 3, outer magnet rotor assembly 5 and main separation sleeve 4 rub, at interior magnet rotor assembly 3, worn out outer interlayer 7 and internal portioning layer 8 before outer magnet rotor assembly 5 and main separation sleeve 4 rub.Because the partial air in the second cavity 10 is pumped, close to vacuum state, because of when interlayer 7 and internal portioning layer 8 do not occur worn out in addition, the pressure of the second cavity 10 is far below a standard atmospheric pressure.Once outer interlayer 7 or internal portioning layer 8 have an appearance worn out; pressure in second cavity 10 will sharply rise; at this moment the interlayer be not worn through still plays protection seal action together with main separation sleeve 4; medium can not leak because a front end spacer is damaged, but pressure in the second cavity 10 will close to or be greater than a barometric pressure.By the force value of the second cavity 10 that pressure gauge demonstrates, relevant staff just can judge magnetic drive pump bearing wearing and tearing and separation sleeve breakage, repairs or replaces in time, avoid the generation of dielectric leakage accident to magnetic drive pump bearing and separation sleeve.
The magnetic eddy current loss of the present embodiment is less, can not affect the working procedure of the assemblage gap of magnet rotor inside and outside magnetic coupling.Outer interlayer 7, internal portioning layer 8 are independent of outside interior magnet rotor assembly 3, outer magnet rotor assembly 5 and main separation sleeve 4 gap, and the first cavity 1 and the second cavity 10 do not affect the assemblage gap of magnet rotor inside and outside magnetic coupling.In the rotation process of inside and outside magnet rotor, outer interlayer 7, internal portioning layer 8 can not cutting magnetic lines, and do not produce magnetic vortex phenomenon, magnetic eddy current loss is less.
Embodiment 2: as shown in Figure 2, on the basis of embodiment 1, the second cavity 10 on described separation sleeve pedestal 6 establishes pressure transducer 13, central unit 14 and alarm 15, described pressure transducer 13 is positioned on described second cavity 10, and described pressure transducer 13 is connected with described alarm 15 by described central unit 14.Pressure signal in pressure transducer 13 real-time sampling second cavity 10, and these signals are passed to central unit 14, central unit 14 connects alarm 15.After these signals analyzed by central unit, compare with setup pressure value, as found, the force value in the second cavity 10 exceedes the force value of setting, central unit 14 sends instruction to alarm 15, alarm 15 will send sound and light signal, report to the police to Field Force, remind and magnetic drive pump bearing and separation sleeve are repaired or replaced.
Claims (3)
1. can monitor the magnetic coupling of magnetic drive pump bearing wearing and tearing for one kind, it is characterized in that, comprise interior magnet rotor assembly (3), outer magnet rotor assembly (5) and main separation sleeve (4), with, described main separation sleeve (4) is positioned between described magnet rotor assembly (3) and described outer magnet rotor assembly (5), the end bifurcated of described main separation sleeve (4) is outer interlayer (7) and internal portioning layer (8), and described outer interlayer (7) and described internal portioning layer (8) form the first cavity (1); The end of described interior magnet rotor assembly (3) is provided with first and treats mill layer (2), the end of described outer magnet rotor assembly (5) is provided with second and treats mill layer (12), described first treats that mill layer (2) is less than the spacing of described interior magnet rotor assembly (3) and described main separation sleeve (4) with the spacing of described internal portioning layer (8), and the described second spacing of waiting to grind layer (12) and described outer interlayer (7) is less than the spacing of described outer magnet rotor assembly (5) and described main separation sleeve (4); Also comprise a separation sleeve pedestal (6), described separation sleeve pedestal (6) is positioned at the end of described magnet rotor assembly (3), described outer magnet rotor assembly (5) and described main separation sleeve (4), described separation sleeve pedestal (6) is provided with the second cavity (10), and the first cavity (1) that described second cavity (10) is formed with described outer interlayer (7) and described internal portioning layer (8) is mutually through; The second cavity (10) on described separation sleeve pedestal (6) is provided with pressure monitoring device (11).
2. a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing according to claim 1, it is characterized in that, described pressure monitoring device (11) is pressure gauge.
3. a kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing according to claim 2, it is characterized in that, described pressure monitoring device (11) comprises pressure transducer (13), central unit (14) and alarm (15), described pressure transducer (13) is positioned on described second cavity (10), and described pressure transducer (13) is connected with described alarm (15) by described central unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152276.1A CN103925229B (en) | 2014-04-16 | 2014-04-16 | A kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410152276.1A CN103925229B (en) | 2014-04-16 | 2014-04-16 | A kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing |
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| Publication Number | Publication Date |
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| CN103925229A CN103925229A (en) | 2014-07-16 |
| CN103925229B true CN103925229B (en) | 2016-01-27 |
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| CN201410152276.1A Expired - Fee Related CN103925229B (en) | 2014-04-16 | 2014-04-16 | A kind of magnetic coupling of monitoring magnetic drive pump bearing wearing and tearing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611687B (en) * | 2018-12-03 | 2020-05-22 | 苏州市洋基机电工程有限公司 | Automatic management and control system for management liquid |
| CN112412830A (en) * | 2020-11-23 | 2021-02-26 | 安徽信成泵阀有限公司 | Magnetic rotor skew monitoring device and magnetic pump in magnetic pump |
| CN113565790A (en) * | 2021-08-30 | 2021-10-29 | 江苏武新泵业有限公司 | Ball bearing monitoring devices that beats for magnetic drive pump |
| CN113623261A (en) * | 2021-08-30 | 2021-11-09 | 江苏武新泵业有限公司 | Leakage monitoring type double-layer metal isolation sleeve for magnetic pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233746A (en) * | 1998-04-28 | 1999-11-03 | 丛玉良 | Method and device for test alignment of magnetic rotator of magnetic pump using external magnetism |
| CN2357155Y (en) * | 1998-04-28 | 2000-01-05 | 丛玉良 | Eccentric detecting element for internal and external magnetic rotor of magnetic pump |
| CN1724967A (en) * | 2005-05-18 | 2006-01-25 | 江苏大学 | On-line monitoring method and device for gap of magnetic force pump permanent magnet coupler |
| CN101539395A (en) * | 2009-04-24 | 2009-09-23 | 江苏大学 | Device for online-monitoring of internal-external magnetic steel gap of a magnetic pump permanent coupler |
| CN102094834A (en) * | 2011-01-18 | 2011-06-15 | 江苏大学 | Magnetic drive pump dry friction, overloading, coupling slipping and rotor blocking and rubbing protective device |
| CN203783946U (en) * | 2014-04-16 | 2014-08-20 | 江苏大学 | Magnetic coupler capable of monitoring wear of magnetic drive pump bearing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8054943B2 (en) * | 2009-12-03 | 2011-11-08 | General Electric Company | Magnetic coupler drive for x-ray tube anode rotation |
| TWM450903U (en) * | 2011-07-12 | 2013-04-11 | Maxforce Energy Technologies Co Ltd | Magneticcoupler |
-
2014
- 2014-04-16 CN CN201410152276.1A patent/CN103925229B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233746A (en) * | 1998-04-28 | 1999-11-03 | 丛玉良 | Method and device for test alignment of magnetic rotator of magnetic pump using external magnetism |
| CN2357155Y (en) * | 1998-04-28 | 2000-01-05 | 丛玉良 | Eccentric detecting element for internal and external magnetic rotor of magnetic pump |
| CN1724967A (en) * | 2005-05-18 | 2006-01-25 | 江苏大学 | On-line monitoring method and device for gap of magnetic force pump permanent magnet coupler |
| CN101539395A (en) * | 2009-04-24 | 2009-09-23 | 江苏大学 | Device for online-monitoring of internal-external magnetic steel gap of a magnetic pump permanent coupler |
| CN102094834A (en) * | 2011-01-18 | 2011-06-15 | 江苏大学 | Magnetic drive pump dry friction, overloading, coupling slipping and rotor blocking and rubbing protective device |
| CN203783946U (en) * | 2014-04-16 | 2014-08-20 | 江苏大学 | Magnetic coupler capable of monitoring wear of magnetic drive pump bearing |
Non-Patent Citations (2)
| Title |
|---|
| 盘式异步磁力联轴器三维气隙磁场计算及实验研究;杨超君等;《电机与控制学报》;20130131;第17卷(第1期);全文 * |
| 磁力联轴器研究发展现状;王晶晶等;《现代商贸工业》;20130131(第1期);全文 * |
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