CN200946574Y - Omnirange monitored intelligent magnetic pump - Google Patents
Omnirange monitored intelligent magnetic pump Download PDFInfo
- Publication number
- CN200946574Y CN200946574Y CN 200620073943 CN200620073943U CN200946574Y CN 200946574 Y CN200946574 Y CN 200946574Y CN 200620073943 CN200620073943 CN 200620073943 CN 200620073943 U CN200620073943 U CN 200620073943U CN 200946574 Y CN200946574 Y CN 200946574Y
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- Prior art keywords
- magnet rotor
- unit
- pump
- magnetic drive
- separation sleeve
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Abstract
An omnirange monitored intelligent magnetic pump, in particular to a high-power magnetic pump which can carry out an online detection on the abrasion of sliding bearing, the temperature rise of isolation sleeve, an unladen protection and an overload protection. The magnetic pump includes an inner magnetic rotor, an outer magnetic rotor, an impeller, a pump axis, a sliding bearing and a monitor circuit. The isolation sleeve is arranged between the inner and the outer magnetic rotors; an induction coil and a temperature sensor are arranged at the external wall of the isolation sleeve; the monitor circuit is composed of a temperature comparison circuit, a series-wound signal amplification unit, a A/D conversion unit, a smoothing unit, a computing unit, a comparison unit, a warning drive unit and a warning unit. The conditions that the abrasion of sliding bearing, and the temperature raise of the isolation sleeve can be monitored effectively by means of an inductive electromotive force signal produced by the induction coil , and thus to ensure a safe, reliable and normal running of the high-power magnetic pump.
Description
Technical field
The utility model relates to a kind of intelligent magnetic drive pump of complete monitoring that has, and specifically is a kind of high-power intelligent 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 on-line monitoring that can be implemented in.
Background technique
Magnetic drive pump is a kind of static seal no-leakage pump that grows up nearly two more than ten years, it is the working principle according to permanent magnet clutch, it is the outer magnet rotor of driven by motor, impeller is installed in and supports pump shaft one end, supporting the pump shaft the other end connects with interior magnet rotor is coaxial, by the seal isolation cover it is separated between interior magnet rotor, the outer magnet rotor, magnet rotor and impeller rotated synchronously in outer magnet rotor drove by the action of a magnetic field.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 magnetic drive pump is in actual motion, at present some problems of ubiquity: when sliding bearing abrasion is serious, and magnet rotor and thin-walled separation sleeve generation grazing 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.
Problem clearly above-mentioned is fatal defective for magnetic drive pump, be not only because the existence of these problems can make magnetic drive pump out of service, and main such as since bearing wear cause when serious in magnet rotor and separation sleeve grazing, cause the catastrophic effect of inflammable and explosive medium blast on fire.
Summary of the invention
The purpose of this utility model be for the defective that overcomes prior art provide a kind of can on-line real time monitoring temperature rise value of overstepping the extreme limit whether of the wear extent of magnetic drive pump slides within bearing and separation sleeve, with the intelligent magnetic drive pump of the complete monitoring of guaranteeing the safe and reliable operation under any working condition.
For achieving the above object, the utility model adopts following technological scheme: the intelligent magnetic drive pump of complete monitoring, comprise interior magnet rotor, outer magnet rotor, impeller and pump shaft and sliding bearing, be respectively equipped with interior magnet steel and outer steel on interior magnet rotor and the outer magnet rotor, be provided with separation sleeve between interior magnet rotor and the outer magnet rotor; It is characterized in that: the intelligent magnetic drive pump of described complete monitoring also is provided with supervisory circuit, described separation sleeve outer wall is provided with inductor coil and temperature transducer, the magnet steel corresponding part of magnet rotor and outer magnet rotor in inductor coil is arranged on, the inductor coil length direction is provided with vertically, supervisory circuit comprises signal amplification unit, A/D converting unit, filter unit, arithmetic element, comparing unit, alarm driver element 18 and the Alarm Unit of temperature comparison circuit and series connection, and inductor coil is connected with the signal amplification unit input end; Temperature transducer output is connected with the temperature comparison circuit input end.
Further setting of the present utility model is: separation sleeve outer wall upper edge circumferentially evenly is provided with three groups three groups or three groups of above inductor coils.
Of the present utility model further the setting is: separation sleeve outer wall upper edge circumferentially evenly is provided with three groups of inductor coils, and makes phase difference become 120 ° the signal of three groups of inductor coils superimposed.
The beneficial effects of the utility model compared with prior art: just can effectively onlinely detect the wearing and tearing and the separation sleeve temperature rise situation of bearing by the induced electromotive force signal that produces on the monitoring inductor coil, thereby can effectively guarantee high-power magnetic drive pump safety, reliably, normally move.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment's a magnetic drive pump structural representation;
Fig. 2 is the supervisory circuit theory diagram;
Fig. 3 is the temperature comparison circuit schematic diagram;
Fig. 4 is a separation sleeve surface induction coil distribution schematic diagram;
Fig. 5 is Fig. 4 A-A sectional view.
Embodiment
As shown in Figure 1, the intelligent magnetic drive pump of complete monitoring includes motor 1, the pump housing 2, hitch 3 between the motor 1 and the pump housing 2, outer magnet rotor 4 connects with motor 1 output shaft 7, impeller 5 is installed in and supports pump shaft 6 one ends, support pump shaft 6 the other ends and interior 8 coaxial connections of magnet rotor, by seal isolation cover 10 it is separated between interior magnet rotor 8 and the outer magnet rotor 4, complete monitoring device 9 is arranged on outside the hitch 3, as shown in Figure 2, its supervisory circuit comprises inductor coil 12 and the temperature transducer 11 that is arranged on separation sleeve 10 outer walls, the signal amplification unit 13 of temperature comparison circuit and series connection, A/D converting unit 14, filter unit 15, arithmetic element 16, comparing unit 17, alarm driver element 18 and Alarm Unit 19, the magnet steel corresponding part of magnet rotor 8 and outer magnet rotor 4 in inductor coil 12 is arranged on, be connected with signal amplification unit 13 input ends, inductor coil 12 is made thin-and-long, length direction is provided with vertically, help like this monitoring whole in magnet rotor 8 wear and tear vertically and bring eccentricly, improve the monitoring reliability, in order further to improve the precision of monitoring, can circumferentially evenly be provided with many group inductor coils 12 in separation sleeve 10 outer wall upper edges, three groups of inductor coils 12 preferably, and make phase difference become 120 ° the signal of three groups of inductor coils 12 superimposed, as Fig. 4, shown in Figure 5, three groups of inductor coils 12 produce respectively and interior magnet rotor 8, outer magnet rotor 4 air gaps are inversely proportional to, the sinusoidal induced electromotive force signal (E) of 120 ° of electrical angles of phase difference, total electromotive force are three vector and (the ∑ E=E1+E2+E3) that differ the sinusoidal signal of 120 ° of electrical angles.Under the normal condition, when interior magnet rotor 8, when outer magnet rotor 4 air gaps equate, the total electromotive force size is zero (∑ E=0).When in the bearing wear promptly when magnet rotor 8, outer magnet rotor 4 off-centre, its difference is big more, and ∑ E is also big more.By the supervisory device analytical system of outside, obtain magnetic force pump shaft 6 and hold the gap state characteristic value, as the basis for estimation of output signal conversion process.Signal amplification unit 13 and comparing unit 17 are core with the operational amplifier, it is core that arithmetic element 16 can adopt single-chip microcomputer, arithmetic element 16 is converted into the bearing wear amount with the induced electromotive force signal of input, through comparing unit 17 and setting value relatively after, if transfinite, then alarm driver element 18 driving Alarm Units 19 and send guard sign.As shown in Figure 3, temperature comparison circuit also is core composition amplification circuit with the operational amplifier, conduct is with reference to voltage after resistance R 1 and the resistance R c dividing potential drop, temperature transducer 11 selects for use thermistor Rt to be connected with another input end of temperature comparison circuit, thermistor Rt sticks on the high-order bit of separation sleeve 10 temperature rises, temperature comparison circuit output with alarm driver element 18 and be connected.Alarm Unit 19 can be sound circuit, alarm song circuit or tutorial light of all kinds.
Claims (3)
1, the intelligent magnetic drive pump of a kind of complete monitoring comprises interior magnet rotor, outer magnet rotor, impeller and pump shaft and sliding bearing, is respectively equipped with interior magnet steel and outer steel on interior magnet rotor and the outer magnet rotor, is provided with separation sleeve between interior magnet rotor and the outer magnet rotor; It is characterized in that: the intelligent magnetic drive pump of described complete monitoring also is provided with supervisory circuit, described separation sleeve outer wall is provided with inductor coil and temperature transducer, the magnet steel corresponding part of magnet rotor and outer magnet rotor in inductor coil is arranged on, the inductor coil length direction is provided with vertically, supervisory circuit comprises signal amplification unit, A/D converting unit, filter unit, arithmetic element, comparing unit, alarm driver element and the Alarm Unit of temperature comparison circuit and series connection, and inductor coil is connected with the signal amplification unit input end; Temperature transducer output is connected with the temperature comparison circuit input end.
2, the intelligent magnetic drive pump of complete monitoring according to claim 1 is characterized in that: described separation sleeve outer wall upper edge circumferentially evenly is provided with three groups or three groups of above inductor coils.
3, the intelligent magnetic drive pump of complete monitoring according to claim 2 is characterized in that: described separation sleeve outer wall upper edge circumferentially evenly is provided with three groups of inductor coils, and makes phase difference become 120 ° the signal of three groups of inductor coils superimposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073943 CN200946574Y (en) | 2006-06-13 | 2006-06-13 | Omnirange monitored intelligent magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073943 CN200946574Y (en) | 2006-06-13 | 2006-06-13 | Omnirange monitored intelligent magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200946574Y true CN200946574Y (en) | 2007-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620073943 Expired - Lifetime CN200946574Y (en) | 2006-06-13 | 2006-06-13 | Omnirange monitored intelligent magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200946574Y (en) |
Cited By (8)
| 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 |
| CN103629117A (en) * | 2013-11-25 | 2014-03-12 | 丹东克隆先锋泵业有限公司 | Cooling liquid external circulating magnetic pump of mechanical sealing device |
| CN103727015A (en) * | 2012-10-11 | 2014-04-16 | 成都赛腾自动化工程有限公司 | Magnetic drive pump safe operation monitoring system based on single chip microcomputer |
| 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 |
| CN108225772A (en) * | 2017-12-27 | 2018-06-29 | 合肥新沪屏蔽泵有限公司 | A kind of number shows bearing wear measuring instrument |
| 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 |
| 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 |
-
2006
- 2006-06-13 CN CN 200620073943 patent/CN200946574Y/en not_active Expired - Lifetime
Cited By (10)
| 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 |
| 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 |
| CN103727015A (en) * | 2012-10-11 | 2014-04-16 | 成都赛腾自动化工程有限公司 | Magnetic drive pump safe operation monitoring system based on single chip microcomputer |
| CN103629117A (en) * | 2013-11-25 | 2014-03-12 | 丹东克隆先锋泵业有限公司 | Cooling liquid external circulating magnetic pump of mechanical sealing 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 |
| CN108225772A (en) * | 2017-12-27 | 2018-06-29 | 合肥新沪屏蔽泵有限公司 | A kind of number shows bearing wear measuring instrument |
| 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 |
| 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: 20070912 |
|
| EXPY | Termination of patent right or utility model |