CN1793776A - On-line mornitoring device for magnetic pump hearing gap - Google Patents
On-line mornitoring device for magnetic pump hearing gap Download PDFInfo
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- CN1793776A CN1793776A CN 200510022567 CN200510022567A CN1793776A CN 1793776 A CN1793776 A CN 1793776A CN 200510022567 CN200510022567 CN 200510022567 CN 200510022567 A CN200510022567 A CN 200510022567A CN 1793776 A CN1793776 A CN 1793776A
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- magnetic drive
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- drive pump
- spacer sleeve
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Abstract
An on-line monitoring device of bearing gap on magnetic pump is prepared as setting detection wires along radial direction of housing washer on spacing sleeve to cut gap magnetic field of permanent-magnet coupling for generating dynamic potential signal, leading signal out for amplifying and filtering, sending processed digital signal to display for displaying gap state of permanent-magnet coupling on magnetic pump dynamically and sending out alarm if limited valve is on.
Description
Technical field:
The invention belongs to the displacement measurement field.Refer in particular to a kind of to on-line mornitoring device for magnetic pump hearing gap.
Background technology:
Magnetic drive pump is made up of the pump housing, permanent magnet clutch, driving motor three parts.Motor directly drives the outer rotor of permanent magnet clutch, and the outer rotor magnets magnetic fields is passed spacer sleeve and acted on the work of internal rotor magnet driving pump.Spacer sleeve separates pump and power section, and realizing does not have the power transmission of leakage.Because magnetic drive pump adopts enclosed construction, pump slides within bearing relies on the medium of being carried to realize the lubricated and cooling of self, and the medium lubricity that magnetic drive pump is carried is often relatively poor, sliding bearing is often because of the insufficient lubrication serious wear, wearing and tearing back bearing shell increases with the radial play of axle, rotor part rotates loosening, rotor center off-axis geometric center, when sliding bearing abrasion is serious, magnet rotor and seal isolation cover rubs in will causing, if do not find in time that interior magnet rotor can be worn out with sealing shroud, not only cause dielectric leakage, but and fire hazard.
Inside and outside magnet rotor eccentric detection method of Chinese patent 98110180.1,98220956.8 magnetic drive pumps and device, employing is at the radially uniform magnetic test coil in surface, spacer sleeve outer ring, obtain detection signal by magnetic test coil, draw and handle, compare, judge, when reaching spacing value, send alerting signal.The described magnetic test coil of this patent is difficult to accurately to determine the detection position, thereby interference and error are bigger.The magnetic test coil wiring is complicated, needs lead overlapping, and because the part magnetic flux is cancelled each other, the signal utilization factor is low.Chinese patent 200510040067.9 gap of magnetic force pump permanent magnet coupler online test method and devices, radially apart 120 degree are provided with three groups of detection leads on surface, spacer sleeve outer ring in employing, obtain detection signal thus, draw and handle, compare, judge, when reaching spacing value, send alerting signal.The bearing clearance signal that the described detection lead of this patent produces is subjected to the magnetic drive pump load effect bigger, has increased the difficulty of treatment circuit.
Summary of the invention:
The object of the present invention is to provide the on-Line Monitor Device in a kind of magnetic drive pump bearing gap, can reflect the magnetic drive pump bearing radial play exactly, dependable performance, Installation and Debugging are convenient, and reasonable in design can improve security of operation, the reliability of magnetic drive pump.
The technical solution adopted for the present invention to solve the technical problems is:
On-line mornitoring device for magnetic pump hearing gap comprises some groups of bearing clearance detecting device and the signal Processing display circuits between magnetic drive pump spacer sleeve and magnetic drive pump outer steel.The bearing clearance detecting device is formed by being disposed radially on surface, spacer sleeve outer ring with the detection lead group of spacer sleeve axially parallel.It is characterized in that: every group is detected lead minimum is two parts, apart 180 degree in locus.Every part detects minimum one of lead.When detecting device is two groups, apart 90 degree; When detecting device is more than two groups the time, along spacer sleeve even five equilibrium radially.When every part detected lead more than one, its interval angle was the integral multiple that 360 degree and magnetic drive pump outer steel are counted ratio, and multiple value is less than magnetic drive pump outer steel number.The motion-derived voltage addition principle that every part detection lead internal condition produces links to each other, and subtracts each other principle according to the motion-derived voltage that produces between the each several part detection lead in the group and links to each other.Every group is detected lead integral body and has only two line ends.Detect lead between magnetic drive pump spacer sleeve and magnetic drive pump outer steel the centre position or outside avris.Detecting lead and connecting line thereof adopts flexible film P.e.c. or insulated wire etc. to be fixed in avris or centre position between magnetic drive pump outer steel on the magnetic drive pump spacer sleeve outside surface and the interior magnet steel.Each is organized detector output end and connects signal conversion circuit, then, removes to handle circuit, sends alerting signal when reaching spacing value.Display dynamically shows the magnetic drive pump bearing gap.
When ultimate principle of the present invention is the permanent magnet clutch rotation, detect lead and do cutting magnetic line movement, because the effect of Luo Lunci power produces motional electromotive force,, make the pick-up unit design reasonable more, reliable at the detection lead installation site of magnetic force pump permanent magnet coupler magnet number design.
On-line mornitoring device for magnetic pump hearing gap of the present invention can effective online detection Magnetic Drive Pump Sliding Bearing wearing clearance, eliminates the major hidden danger that threatens the magnetic drive pump safe operation, the utilization scope of expansion magnetic drive pump.
Description of drawings
Fig. 1 magnetic drive pump structural drawing.
Fig. 2 embodiment 1 detects the side connecting conductor formula.
Fig. 3 embodiment 1 detects the lead location synoptic diagram.
Fig. 4 embodiment 1 detects the harness wiring synoptic diagram.
Fig. 5 embodiment 2 detects the lead location synoptic diagram.
Fig. 6 embodiment 2 detects the harness wiring synoptic diagram.
Fig. 7 pick-up unit schematic diagram.
1. spacer sleeve, 2. outer rotor, 3. internal rotor 4. detects lead, 5. pump slides within bearing, 6.7.8.9.10.11.12.13.14.15.16.17. the detection lead, 18. radial magnetizing N-S permanent magnets, 19. radial magnetizing S-N permanent magnets, 20. signal conversion circuit, 21. treatment circuit, 22. warning circuits, 23. displays.
Embodiment:
Embodiment 1:
With reference to figure 2, Fig. 3, Fig. 4, the present embodiment on-line mornitoring device for magnetic pump hearing gap, suppose that permanent magnet clutch magnet number is 12, detect the lead rectangular wiring, by on surface, spacer sleeve outer ring radially circumference differ 90 degree two groups of bearing clearance detecting devices be set, every group of detection lead is divided into two parts, and it is one that every part detects lead.Detecting lead is (6,7,8,9), wherein detects lead (6,8) and differs 180 degree, detects lead (7,9) and differs 180 degree, detects lead (6,7) and differs 90 degree, detects lead (8,9) and differs 90 degree.4 are detected lead and constitute two groups of detecting devices.Detecting device is axially discharged along spacer sleeve by flexible film P.e.c. or enameled wire, is fixed on the spacer sleeve.
Fig. 7 is the pick-up unit schematic diagram, two groups are detected the magnetic drive pump bearing gap signals that each generation of lead differs 90 degree directions, send into that signal conversion circuit 20 amplifies, after the filtering, send treatment circuit 21 to handle, send display 23 dynamically to show gap of magnetic force pump permanent magnet coupler at last; The alert circuit 22 of delivering newspaper produces alerting signal when gap of magnetic force pump permanent magnet coupler reaches predetermined gap, report to the police.
Embodiment 2:
With reference to figure 5, Fig. 6, suppose that permanent magnet clutch magnet number is 12, detect the lead rectangular wiring, by on surface, spacer sleeve outer ring radially circumference differ 120 degree three groups of bearing clearance detecting devices be set, every group of detection lead is divided into two parts, and it is two that every part detects lead.Each group detects lead and is respectively (6,10,8,14), (12,13,16,17), (15,9,11,7).Detection lead (6,8), (10,14), (12,16), (13,17), (11,15), (7,9) respectively differ 180 degree.Detection lead (6,10), (8,14), (12,13), (16,17), (11,7), (15,9) respectively differ 30 degree.Detection lead (6,12,15), (10,13,9), (8,16,11), (14,17,7) respectively differ 120 degree.Detecting device is axially discharged along spacer sleeve by flexible film P.e.c. or enameled wire, is fixed on the spacer sleeve.
Claims (3)
1. on-line mornitoring device for magnetic pump hearing gap, this device comprises some groups of bearing clearance detecting device and the signal Processing display circuits between magnetic drive pump spacer sleeve and magnetic drive pump outer steel, the bearing clearance detecting device is formed by being disposed radially on surface, spacer sleeve outer ring with the detection lead group of spacer sleeve axially parallel, it is characterized in that: every group is detected lead minimum is two parts, apart 180 degree in locus; Every part detects minimum one of lead; When detecting device is two groups, apart 90 degree; When detecting device is more than two groups the time, along spacer sleeve even five equilibrium radially; When every part detected lead more than one, its interval angle was the integral multiple that 360 degree and magnetic drive pump outer steel are counted ratio, and multiple value is less than magnetic drive pump outer steel number; Detect lead between magnetic drive pump spacer sleeve and magnetic drive pump outer steel the centre position or outside avris; Every group is detected lead integral body and has only two line ends.
2. on-line mornitoring device for magnetic pump hearing gap according to claim 1 is characterized in that: all detect lead and connecting line adopts flexible film P.e.c. or insulated wire form to be fixed in magnetic drive pump spacer sleeve outside surface.
3. on-line mornitoring device for magnetic pump hearing gap according to claim 1, it is characterized in that: described signal Processing display circuit comprises signal conversion circuit, treatment circuit, warning circuit, display, each is organized the bearing clearance detecting device and links to each other with treatment circuit through signal conversion circuit, and its output links to each other with warning circuit with display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510022567XA CN100410620C (en) | 2005-12-23 | 2005-12-23 | On-line mornitoring device for magnetic pump hearing gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510022567XA CN100410620C (en) | 2005-12-23 | 2005-12-23 | On-line mornitoring device for magnetic pump hearing gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1793776A true CN1793776A (en) | 2006-06-28 |
| CN100410620C CN100410620C (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510022567XA Expired - Fee Related CN100410620C (en) | 2005-12-23 | 2005-12-23 | On-line mornitoring device for magnetic pump hearing gap |
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| CN (1) | CN100410620C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094804A (en) * | 2011-01-18 | 2011-06-15 | 江苏大学 | Device and method for monitoring bearing wear of magnetic pump |
| CN101539395B (en) * | 2009-04-24 | 2011-07-06 | 江苏大学 | Device for online-monitoring of internal-external magnetic steel gap of a magnetic pump permanent coupler |
| CN104121936A (en) * | 2013-04-29 | 2014-10-29 | 艾默生电气（美国）控股公司（智利）有限公司 | Dynamic transducer with digital output and method for use |
| CN108759650A (en) * | 2018-04-23 | 2018-11-06 | 江苏大学镇江流体工程装备技术研究院 | A kind of magnetic drive pump bearing gap wear on-Line Monitor Device and its method |
| CN114263622A (en) * | 2021-12-30 | 2022-04-01 | 浙江启尔机电技术有限公司 | Magnetic coupling online monitoring system and method and magnetic pump adopting same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04248348A (en) * | 1991-01-10 | 1992-09-03 | Nikkiso Co Ltd | Bearing abrasion detector for ac electric rotating machine |
| US5696444A (en) * | 1994-03-04 | 1997-12-09 | Crane Co. | Monitoring system for detecting axial and radial movement of a rotating body independent of rotational position |
| CN2299956Y (en) * | 1997-01-09 | 1998-12-09 | 中国石化兰州炼油化工总厂 | Double-layered isolation casing for magnetic pump |
| CN2357155Y (en) * | 1998-04-28 | 2000-01-05 | 丛玉良 | Eccentric detecting element for internal and external magnetic rotor of magnetic pump |
| 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 |
-
2005
- 2005-12-23 CN CNB200510022567XA patent/CN100410620C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539395B (en) * | 2009-04-24 | 2011-07-06 | 江苏大学 | Device for online-monitoring of internal-external magnetic steel gap of a magnetic pump permanent coupler |
| CN102094804A (en) * | 2011-01-18 | 2011-06-15 | 江苏大学 | Device and method for monitoring bearing wear of magnetic pump |
| CN102094804B (en) * | 2011-01-18 | 2012-11-07 | 江苏大学 | Device and method for monitoring bearing wear of magnetic pump |
| CN104121936A (en) * | 2013-04-29 | 2014-10-29 | 艾默生电气（美国）控股公司（智利）有限公司 | Dynamic transducer with digital output and method for use |
| CN108759650A (en) * | 2018-04-23 | 2018-11-06 | 江苏大学镇江流体工程装备技术研究院 | A kind of magnetic drive pump bearing gap wear on-Line Monitor Device and its method |
| CN114263622A (en) * | 2021-12-30 | 2022-04-01 | 浙江启尔机电技术有限公司 | Magnetic coupling online monitoring system and method and magnetic pump adopting same |
| CN114263622B (en) * | 2021-12-30 | 2024-04-30 | 浙江启尔机电技术有限公司 | Magnetic coupling on-line monitoring system and method and magnetic pump adopting magnetic coupling on-line monitoring system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100410620C (en) | 2008-08-13 |
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| SE01 | Entry into force of request for substantive examination | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20081205 Address after: Zhejiang city of Wenzhou province Ouhai Xinqiao high Feng Lu No. 10 Patentee after: Zhejiang Tengyu Pump & Valve Equipment Co., Ltd. Address before: No. 301, Dantu Road, Jiangsu, Zhenjiang, Jiangsu University Patentee before: Jiangsu University |
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| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PROVINCE TENG YU PUMP EQUIPMENT CO., LTD. Free format text: FORMER OWNER: JIANGSU UNIV. Effective date: 20081205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20151223 |
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| EXPY | Termination of patent right or utility model |