CN204386905U - A kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device - Google Patents
A kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device Download PDFInfo
- Publication number
- CN204386905U CN204386905U CN201420738748.7U CN201420738748U CN204386905U CN 204386905 U CN204386905 U CN 204386905U CN 201420738748 U CN201420738748 U CN 201420738748U CN 204386905 U CN204386905 U CN 204386905U
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- China
- Prior art keywords
- magnet rotor
- pressure chamber
- magnetic drive
- drive pump
- inner magnet
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device, comprises pressure chamber metallic sheath, pressure transducer, central unit and warning device.Inner magnet rotor of magnetic drive pump axle and pressure chamber radial clearance are less than inner magnet rotor of magnetic drive pump and separation sleeve radial clearance, pressure chamber metallic sheath thickness is less than or equal to separation sleeve thickness, when the generation gauge wear of inner magnet rotor of magnetic drive pump bearing, interior magnet rotor generation eccentric rotary, when bearing wear is serious, inner magnet rotor of magnetic drive pump axle heel pressure chamber metallic sheath rubs, worn out pressure chamber metallic sheath, after pressure chamber metallic sheath is worn through, force value in pressure chamber changes, the abrasion condition of inner magnet rotor of magnetic drive pump bearing can be judged according to the change of pressure in pressure cavity value, avoid the worn out separation sleeve of interior magnet rotor and cause dielectric leakage accidents caused.
Description
Technical field
The utility model relates to inner magnet rotor of magnetic drive pump bearing gauge wear detection device, can be used in the dead-tight magnetic drive pump of requirement positive confinement.
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 radial clearance of the interior magnet rotor of magnetic drive pump and separation sleeve is less, when after the gauge wear to a certain extent of inner magnet rotor of magnetic drive pump bearing, interior 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.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.
Model utility content
In order to overcome above-mentioned technical problem, the utility model provides a kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device, utilize the radial clearance between inner magnet rotor of magnetic drive pump and separation sleeve less, the larger feature of axial clearance designs, before the worn out separation sleeve of inner magnet rotor of magnetic drive pump, send warning, prevent the worn out separation sleeve of inner magnet rotor of magnetic drive pump.
The utility model provides a kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device, comprises pressure chamber metallic sheath, pressure transducer, central unit and warning device, the inside of described pressure chamber metallic sheath forms airtight pressure chamber, fills the gas of certain pressure in described pressure chamber, inner magnet rotor of magnetic drive pump shaft end is designed to concave architecture, described pressure chamber metallic sheath and described inner magnet rotor of magnetic drive pump axle substantially horizontal are coaxially installed, described pressure chamber metallic sheath one end is fixed on separation sleeve, the other end stretches in the concave architecture of described inner magnet rotor of magnetic drive pump shaft end, described inner magnet rotor of magnetic drive pump axle and described pressure chamber metallic sheath form axial clearance and the first radial clearance, described inner magnet rotor of magnetic drive pump and separation sleeve form the second radial clearance, described first radial clearance is less than described second radial clearance, described pressure transducer is fixed on described pressure chamber, described pressure transducer is connected with central unit, described central unit is connected with described warning device, the thickness of described pressure chamber metallic sheath is less than or equal to the thickness of separation sleeve.
Further, described pressure transducer is connected by output line with central unit, and described central unit is connected by output line with described warning device.
Further, fill the nitrogen of certain pressure value in described pressure chamber, described pressure in pressure cavity is higher than pumping system internal pressure.
The beneficial effects of the utility model are; the change of pressure in pressure cavity is recorded by pressure transducer; and be delivered to central unit by output line; central unit carries out signal transacting; processing signals is sent to warning device and sends warning message; remind staff to shut down process, warning can be sent in inner magnet rotor of magnetic drive pump bearing shaft before serious wear, the worn out separation sleeve of inner magnet rotor of magnetic drive pump, avoid the generation of medium leakage accident in pump.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1. inner magnet rotor of magnetic drive pump bearing; 2. inner magnet rotor of magnetic drive pump axle; 3. inner magnet rotor of magnetic drive pump; 4. the first radial clearance; 5. pressure chamber metallic sheath; 6. pressure transducer; 7. output line; 8. separation sleeve; 9. the outer magnet rotor of magnetic drive pump; 10. the second radial clearance; 11. central units; 12. warning devices; 13. pressure chambers; 14. axial clearances.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, but protection domain of the present utility model is not limited to this.
As shown in Figure 1, the utility model comprises: comprise pressure chamber metallic sheath 5, pressure transducer 6, central unit 11 and warning device 12, the inside of described pressure chamber metallic sheath 5 forms airtight pressure chamber 13, fills the gas of certain pressure in described pressure chamber 13, inner magnet rotor of magnetic drive pump axle 2 tip designs becomes concave architecture, described pressure chamber metallic sheath 5 is coaxially installed with described inner magnet rotor of magnetic drive pump axle 2 substantially horizontal, described pressure chamber metallic sheath 5 one end is fixed on separation sleeve 8, the other end stretches in the concave architecture of described inner magnet rotor of magnetic drive pump axle 2 end, described inner magnet rotor of magnetic drive pump axle 2 forms axial clearance 14 and the first radial clearance 4 with described pressure chamber metallic sheath 5, described inner magnet rotor of magnetic drive pump 3 forms the second radial clearance 10 with separation sleeve 8, described first radial clearance 4 is less than described second radial clearance 10, described pressure transducer 6 is fixed on described pressure chamber 13, described pressure transducer 6 is connected with central unit 11, described central unit 11 is connected with described warning device 12, the thickness of described pressure chamber metallic sheath 5 is less than or equal to the thickness of separation sleeve 8.
In such scheme, described pressure transducer 6 is connected by output line 7 with central unit 11, and described central unit 11 is connected by output line 7 with described warning device 12.
When there is gauge wear in inner magnet rotor of magnetic drive pump bearing 1, there is eccentric rotary in interior magnet rotor 3, because inner magnet rotor of magnetic drive pump axle 1 and pressure chamber metallic sheath 5 radial clearance are less than the radial clearance of inner magnet rotor of magnetic drive pump 3 and separation sleeve 8, pressure chamber metallic sheath 5 thickness is less than or equal to the thickness of separation sleeve 8, so, before interior magnet rotor 3 rubs with separation sleeve 8, inner magnet rotor of magnetic drive pump axle 2 first heel pressure chamber metallic sheath 5 rubs, owing to filling the nitrogen of certain pressure value (pressure higher than in pumping system) in pressure chamber 13, therefore when pressure chamber metallic sheath 5 does not occur worn out, the pressure of pressure chamber 13 maintains initial filling pressure value, after pressure chamber metallic sheath 5 is worn through, pressure in pressure chamber 13 will be reduced to the force value in pumping system, the change of pressure chamber 13 internal pressure is recorded by pressure transducer 6, and be delivered to central unit 11 by output line 7, central unit carries out signal transacting, processing signals is sent to warning device 12 and sends warning message, staff is reminded to shut down process.
In such scheme, fill the nitrogen of certain pressure value in described pressure chamber 13, and pressure is higher than pumping system internal pressure.After pressure chamber 13 breaks, nitrogen is contaminated air not, and is not easy to react with medium in pump.
Described embodiment be the utility model preferred embodiment; but the utility model is not limited to above-mentioned mode of execution; when not deviating from flesh and blood of the present utility model, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection domain of the present utility model.
Claims (3)
1. an inner magnet rotor of magnetic drive pump bearing gauge wear detection device, is characterized in that, comprises pressure chamber metallic sheath (5), pressure transducer (6), central unit (11) and warning device (12); The inside of described pressure chamber metallic sheath (5) forms airtight pressure chamber (13), fills the gas of certain pressure in described pressure chamber (13); inner magnet rotor of magnetic drive pump axle (2) tip designs becomes concave architecture, described pressure chamber metallic sheath (5) and described inner magnet rotor of magnetic drive pump axle (2) substantially horizontal are coaxially installed, described pressure chamber metallic sheath (5) one end is fixed on separation sleeve (8), the other end stretches in the concave architecture of described inner magnet rotor of magnetic drive pump axle (2) end, described inner magnet rotor of magnetic drive pump axle (2) and described pressure chamber metallic sheath (5) form axial clearance (14) and the first radial clearance (4), described inner magnet rotor of magnetic drive pump (3) and separation sleeve (8) form the second radial clearance (10), described first radial clearance (4) is less than described second radial clearance (10), described pressure transducer (6) is fixed on described pressure chamber (13), described pressure transducer (6) is connected with central unit (11), described central unit (11) is connected with described warning device (12), the thickness of described pressure chamber metallic sheath (5) is less than or equal to the thickness of separation sleeve (8).
2. a kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device according to claim 1, it is characterized in that, described pressure transducer (6) is connected by output line (7) with central unit (11), and described central unit (11) is connected by output line (7) with described warning device (12).
3. a kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device according to claim 1 and 2, is characterized in that, fill the nitrogen of certain pressure value in described pressure chamber (13), described pressure chamber (13) internal pressure is higher than pumping system internal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738748.7U CN204386905U (en) | 2014-12-02 | 2014-12-02 | A kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738748.7U CN204386905U (en) | 2014-12-02 | 2014-12-02 | A kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204386905U true CN204386905U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738748.7U Expired - Fee Related CN204386905U (en) | 2014-12-02 | 2014-12-02 | A kind of inner magnet rotor of magnetic drive pump bearing gauge wear detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204386905U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014395A (en) * | 2016-05-30 | 2016-10-12 | 中国石油集团渤海钻探工程有限公司 | Testing device for rotors of mud pulse generators |
| CN108105106A (en) * | 2017-11-27 | 2018-06-01 | 洛阳双瑞特种装备有限公司 | A kind of determination method of magnetic drive pump inner rotor bearing abrasion |
| CN108980061A (en) * | 2018-07-17 | 2018-12-11 | 安徽南方化工泵业有限公司 | A kind of metal magnetic pump with defencive function |
| WO2020029436A1 (en) * | 2018-08-06 | 2020-02-13 | 无锡市海星船舶动力有限公司 | Compressor impeller with rotating shaft radial pressure detection function |
| CN111628607A (en) * | 2020-04-26 | 2020-09-04 | 哈尔滨工业大学 | Circumferential block type radial hybrid support electromagnetic bearing system and control method |
| 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 |
-
2014
- 2014-12-02 CN CN201420738748.7U patent/CN204386905U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014395A (en) * | 2016-05-30 | 2016-10-12 | 中国石油集团渤海钻探工程有限公司 | Testing device for rotors of mud pulse generators |
| CN106014395B (en) * | 2016-05-30 | 2019-05-14 | 中国石油集团渤海钻探工程有限公司 | Mud pulse generator rotor test device |
| CN108105106A (en) * | 2017-11-27 | 2018-06-01 | 洛阳双瑞特种装备有限公司 | A kind of determination method of magnetic drive pump inner rotor bearing abrasion |
| CN108980061A (en) * | 2018-07-17 | 2018-12-11 | 安徽南方化工泵业有限公司 | A kind of metal magnetic pump with defencive function |
| WO2020029436A1 (en) * | 2018-08-06 | 2020-02-13 | 无锡市海星船舶动力有限公司 | Compressor impeller with rotating shaft radial pressure detection function |
| CN111628607A (en) * | 2020-04-26 | 2020-09-04 | 哈尔滨工业大学 | Circumferential block type radial hybrid support electromagnetic bearing system and control method |
| CN111628607B (en) * | 2020-04-26 | 2021-12-17 | 哈尔滨工业大学 | Circumferential block type radial hybrid support electromagnetic bearing system and control method |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |