CN2918811Y - Magnetic pump with whole-course monitoring apparatus - Google Patents
Magnetic pump with whole-course monitoring apparatus Download PDFInfo
- Publication number
- CN2918811Y CN2918811Y CN 200620200202 CN200620200202U CN2918811Y CN 2918811 Y CN2918811 Y CN 2918811Y CN 200620200202 CN200620200202 CN 200620200202 CN 200620200202 U CN200620200202 U CN 200620200202U CN 2918811 Y CN2918811 Y CN 2918811Y
- Authority
- CN
- China
- Prior art keywords
- separation sleeve
- outside
- pump
- whole
- magnetic drive
- 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 - Lifetime
Links
Abstract
The utility model relates to a magnetic pump, in particular to a magnetic pump provided with a whole-course monitor device which provides on-line detection and monitoring over excess wear of sliding bearings, temperature-rise of spacing sleeve, no-load protection and overloading protection. The utility model adopts the following technical proposal: the magnetic pump with a whole-course monitor device comprises a pump body, an outer rotor and an inner rotor, a spacing sleeve positioned between the outer and inner rotor and a bearing that supports the shaft. A patch which measures the wear of the bearing is arranged on the outer surface of the spacing sleeve corresponding to the steel magnet arranged on the outer and inner rotor, and is connected with the controlling and analysis system outside. The utility model provides a magnetic pump with a whole-course monitor device with high accuracy and strong practicability.
Description
Technical field
The utility model relates to a kind of magnetic drive pump, is meant especially to can be implemented in the magnetic drive pump that in the magnetic drive pump running sliding bearing abrasion, separation sleeve temperature rise, no-load protection and overload protection is carried out online detection and monitoring.
Technical background
Magnetic drive pump is a kind of static seal no-leakage pump that grows up nearly two more than ten years, and it is the working principle according to permanent magnet clutch, and promptly the outer magnet rotor of driven by motor rotates synchronously by magnet rotor and impeller in the action of a magnetic field drive.By the seal isolation cover it is separated between the inside and outside magnet rotor.This magnetic field carry-over moment contactlessly of utilizing has realized the conveying of medium under whole sealing status effectively.Be widely used in departments such as space flight, petrochemical industry, pharmacy, environmental protection, be used for pumping poisonous, inflammable, the explosive and precious liquid of burn into.But also there are some problems in magnetic drive pump at present in actual motion: when sliding bearing abrasion was serious, magnet rotor and thin-walled separation sleeve generation grazing caused that the blast on fire of inflammable and explosive medium causes catastrophic effect in will causing; The metal separation sleeve easily causes magnet steel demagnetization, medium vaporization to cause pump out of service because eddy current heat produces temperature rise; Therefore magnetic drive pump is to utilize medium itself to be lubricated cooling, forbids zero load, and as untimely shutdown under the situation of finding time at medium, pump will be damaged; Magnetic drive pump will be if long-term overload operation will burn out motor.
Goal of the invention
The purpose of this utility model is to provide a kind of accuracy rate height, practical a kind of magnetic drive pump with the complete monitoring device of detecting.
Realize above-mentioned purpose, the utility model adopts following technological scheme: a kind of magnetic drive pump with the complete monitoring device, include the pump housing, inside and outside rotor, the bearing of separation sleeve between the inside and outside rotor and support pump shaft, the separation sleeve outer wall of the magnet steel corresponding part of inside and outside rotor is provided with surveys the bearing wear paster, and this paster is connected with the control analysis system of outside.
Further setting of the present utility model is: described separation sleeve outer wall is provided with the temperature rise sensor of surveying the separation sleeve temperature, and this sensor is connected with the control analysis system of outside.
Of the present utility model further the setting is: described separation sleeve outer wall is provided with speed probe, and this sensor is connected with the control analysis system of outside.
Of the present utility model further the setting is: described temperature rise sensor is arranged on the bottom surface of separation sleeve.
Beneficial effect: the separation sleeve of the magnet steel corresponding part by described inside and outside rotor is provided with surveys the bearing wear paster, this paster is connected this setup with the control analysis system of outside, the abrasion condition of bearing can be effectively detected, thereby the proper functioning of magnetic drive pump can well be guaranteed.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings:
Fig. 1 is the utility model embodiment's a structural representation;
Embodiment:
As shown in the figure, a kind of magnetic drive pump with the complete monitoring device, include the pump housing 1, inside and outside rotor 2,3, separation sleeve 4 between the inside and outside rotor 2,3 and be arranged on the bearing 10 of internal rotor 2 upper support pump shafts 5, separation sleeve 4 outer walls that are separately positioned on magnet steel 21,31 corresponding parts of inside and outside rotor 2,3 are provided with surveys bearing 10 wearing and tearing pasters 6, and this paster 6 is connected with the control analysis system 9 of outside.The bottom surface of described separation sleeve 4 is provided with the temperature rise sensor 7 of surveying separation sleeve 4 temperature, and this temperature rise sensor 7 also can be arranged on the side wall surface at other position of separation sleeve 4 in the utility model, and this sensor 7 is connected with the control analysis system 9 of outside; Described separation sleeve 4 outer walls are provided with speed probe 8, and this speed probe 8 is connected with the control analysis system 9 of outside.
Concrete principle: during magnetic drive pump bearing 10 wearing and tearing, can cause inside and outside rotor 2,3 off-centre, make between the inside and outside rotor 2,3 that magnetic field changes everywhere, by detecting the changing value of each magnetic intensity, but the eccentric situation of the inside and outside rotor 2,3 of effective monitoring, in case internal rotor 2 produces grazing with separation sleeve 4.Concrete scheme is as follows: three groups of detection lead I that are installed in the bearing wear paster 6 on the separation sleeve 4, the sinusoidal motional electromotive force signal (E) that generation is inversely proportional to inside and outside rotor 2,3 air gaps respectively, phase difference 120 is spent electrical angles, its total motional electromotive force are three vectors and (the ∑ E=E that differ the sinusoidal signal of 120 degree electrical angles
1+ E
2+ E
3).Under the normal condition, when inside and outside rotor 2,3 gaps equated, total motional electromotive force size was zero (∑ E=0).When bearing wear was inner and outer rotors generation off-centre, its difference was big more, and ∑ E is also big more.By the control analysis system of outside, obtain magnetic drive pump bearing 5 gap state characteristic values, as the basis for estimation of output signal conversion process, online observation bearing 10 abrasion conditions are reported to the police when the gap surpasses setting value.
Temperature rise sensor 7 is sticked on the bottom of the high-order bit of separation sleeve 4 temperature rises, be connected by its control analysis system 9 again, make it handle conversion circuit, when temperature exceeds setting value, send alarm signal by output signal with the outside.
Speed probe 8 is sticked on separation sleeve 4 outer round surface, pass through it again and be connected with the control analysis system 9 of outside, rotating speed is the highest when utilizing magnetic drive pump unloaded, power is minimum; The principle that rotating speed reduces during overload, power increases, the work that disconnects electrical source of power or send alarm signal.
Claims (4)
1. magnetic drive pump with the complete monitoring device, include the pump housing, inside and outside rotor, the bearing of separation sleeve between the inside and outside rotor and support pump shaft, it is characterized in that: the separation sleeve outer wall of the magnet steel corresponding part of inside and outside rotor is provided with surveys the bearing wear paster, and this paster is connected with the control analysis system of outside.
2. according to the magnetic drive pump of right 1 described band complete monitoring device, it is characterized in that: described separation sleeve outer wall is provided with the temperature rise sensor of surveying the separation sleeve temperature, and this sensor is connected with the control analysis system of outside.
3. according to the magnetic drive pump of right 1 or 2 described band complete monitoring devices, it is characterized in that: described separation sleeve outer wall is provided with speed probe, and this sensor is connected with the control analysis system of outside.
4. according to the magnetic drive pump of right 2 described band complete monitoring devices, it is characterized in that: described temperature rise sensor is arranged on the bottom surface of separation sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200202 CN2918811Y (en) | 2006-02-24 | 2006-02-24 | Magnetic pump with whole-course monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200202 CN2918811Y (en) | 2006-02-24 | 2006-02-24 | Magnetic pump with whole-course monitoring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918811Y true CN2918811Y (en) | 2007-07-04 |
Family
ID=38216629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200202 Expired - Lifetime CN2918811Y (en) | 2006-02-24 | 2006-02-24 | Magnetic pump with whole-course monitoring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918811Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146928A (en) * | 2011-06-03 | 2011-08-10 | 浙江腾宇泵阀设备有限公司 | Device for preventing magnetic pump from no-load, overload, magnetic steel slipping, rotor blockage and abrasion |
| CN102384077A (en) * | 2010-08-31 | 2012-03-21 | 杨燕 | Protecting device for dry friction and overload of magnetic pump, slipping of coupler and clamping and grinding of rotor |
| CN103249952A (en) * | 2010-10-22 | 2013-08-14 | Ksb股份公司 | Device for monitoring a pump |
| 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 |
-
2006
- 2006-02-24 CN CN 200620200202 patent/CN2918811Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384077A (en) * | 2010-08-31 | 2012-03-21 | 杨燕 | Protecting device for dry friction and overload of magnetic pump, slipping of coupler and clamping and grinding of rotor |
| CN102384077B (en) * | 2010-08-31 | 2015-08-05 | 江苏大学 | Magnetic drive pump dry friction, overload, coupling slippage, rotor card mill protective gear |
| CN103249952A (en) * | 2010-10-22 | 2013-08-14 | Ksb股份公司 | Device for monitoring a pump |
| CN103249952B (en) * | 2010-10-22 | 2016-01-20 | Ksb股份公司 | For the device of pump monitoring |
| CN102146928A (en) * | 2011-06-03 | 2011-08-10 | 浙江腾宇泵阀设备有限公司 | Device for preventing magnetic pump from no-load, overload, magnetic steel slipping, rotor blockage and abrasion |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070704 |
|
| EXPY | Termination of patent right or utility model |