CN100427765C - Pump driven by magnetic force - Google Patents
Pump driven by magnetic force Download PDFInfo
- Publication number
- CN100427765C CN100427765C CNB200410091992XA CN200410091992A CN100427765C CN 100427765 C CN100427765 C CN 100427765C CN B200410091992X A CNB200410091992X A CN B200410091992XA CN 200410091992 A CN200410091992 A CN 200410091992A CN 100427765 C CN100427765 C CN 100427765C
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- rear side
- magnetic force
- block set
- magnet rotor
- external cooling
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Abstract
The present invention relates to a pump driven by magnetic force, which comprises a pump shaft, a bearing and a magnetic rotor, wherein the front section and the rear section of the pump shaft are respectively provided with a front bearing sleeve seat, a front bearing water cavity sleeve, a rear bearing sleeve seat and a rear bearing water cavity sleeve, and a sliding bearing is arranged on the pump shaft; a shaft sleeve is arranged on the pump shaft, a balance plate is arranged at the end face of the rear side of the front bearing sleeve seat, and a balance disc that is paired with the balance plate is arranged at the rear side thereof; the rear end of the rear bearing sleeve seat is connected with a seal cover, and a pressing disc is arranged outside the front end of the seal cover; an external cooling drainage disc is arranged at the rear side of the pressing disc, and the rear side of the external cooling drainage disc is connected with a centering cylinder; an inner magnetic rotor is arranged inside the seal cover at the rear end of the pump shaft, and an outer magnetic rotor is arranged outside the seal cover; the outer magnetic rotor is connected into integration with an outer seat thereof, and an external cooling circulation wheel is arranged at the outer circumferential surface at the front side of the outer magnetic rotor; a water flinging disc is arranged at the end face of the rear side of the outer magnetic rotor, an external cooling rear disc is arranged at the rear side of the water flinging disc on the centering cylinder, and a water sealing ring is arranged at the end face of the rear side of the centering cylinder. The present invention solves problems for the pump driven by magnetic force so that the pump driven by magnetic force can resist evacuation and dry friction.
Description
Technical field
The present invention relates to pump industrial production technology field, particularly a kind of anti-magnetic force driving pump of finding time.
Background technique
In industrial production, the recurrent vaccuum phenomenon of suction line system not only aligns the magnetic drive pump, the electric shield pump that are in operation and causes great damage, therefore Ordinary Centrifugal Pumps can produce also that seal failure, medium leak, the rolling bearing excessive heating is damaged faults such as pump rotor fretting wear.These are concerning the various manufacturing shops of carrying various inflammable, explosive, poisonous, hazardous mediums, and harm greatly lies dormant.Find time to make the electromagnetic wire bag of magnetic drive pump, electric shield pump and the rapid temperature rise of housing to cause transmission failure, also can cause owing to high temperature, dry friction, sliding bearing rapid wearing make pump rotor to sink and worn out housing or seal closure, cause medium to leak and cause fire or blast, consequence is hardly imaginable.Among the Chinese patent ZL012480177 to the bearing of magnetic drive pump, the cooling of magnet rotor is between pump cover and pump shaft seal arrangement to be set, the working room and the cooling chamber of pump are divided into two-part, the easy vaporization medium of being carried so still can enter in the cooling chamber, and cooling chamber and its reflow pipe that is communicated with, liquid container is a complete closed, its cooled flow is to provide by faint temperature difference heat siphon, thereby when pump depletion, institute's fed sheet of a media will enter cooling chamber in a large number rapidly, be not enough to control medium absorption frictional heat and its temperature is risen and the external cooling employing is air-cooled, the no dynamic pump rotor axial of this in addition magnetic drive pump thrust balancing device itself, rotor will produce serious friction with stator, moment is excessive, and make in it, outer magnet rotor is thrown off, skid, make transmission failure, in, after outer magnet rotor skids, also can cut the other side's magnetic line of force mutually, generation electromagnetic eddy heat, the magnetic material is demagnetized rapidly, cause magnet rotor to damage, nonmetal isolating sleeve also can be because of interior in addition, baking after external rotor heats up makes it softening, intensity reduces and breaks, and will cause institute's fed sheet of a media to leak.
Summary of the invention
The objective of the invention is to solve Ordinary Centrifugal Pumps and the on-stream technical barrier that can not find time of common zero leakage pump (comprising magnetic drive pump and canned motorpump), provide that a kind of energy anti-is found time, the magnetic force driving pump of anti-dry grinding.
Technological scheme of the present invention is as follows:
A kind of magnetic force driving pump, comprise pump shaft, bearing and magnet rotor, the pump shaft leading portion is provided with the fore bearing block set, fore bearing block set upper bearing (metal) place is provided with fore bearing water cavity cover, the pump shaft back segment is provided with the rear bearing block set, rear bearing block set upper bearing (metal) place is provided with rear bearing water cavity cover, on above-mentioned fore bearing block set and the rear bearing block set sliding bearing is housed respectively; Adorn an axle sleeve on the above-mentioned pump shaft, this axle sleeve and bearing pairing form the both-end dual-gripper to pump shaft; Above-mentioned fore bearing block set rear side end face is established a balance plate, the balance plate rear side adorn one with the Balance disc of its pairing; Above-mentioned rear bearing cover base rear end connects a seal closure, and a platen is established in seal closure front end outside, and the platen rear side is established an external cooling drainage dish, and external cooling drainage dish rear side connects the centering tube, and the centering tube is connected with the motor seam; Establish magnet rotor in the pump shaft back-end sealing cover, an outer magnet rotor is established in the seal closure outside, and outer magnet rotor fuses with the outer seat of outer magnet rotor, is contained on the motor shaft end, and outer magnet rotor front side outer peripheral surface is provided with external cooling circulation wheel, together rotates with motor shaft; Outer magnet rotor rear side end face is equipped with water-throwing disk, and the rear side of water-throwing disk is adorned an external cooling hub disk on the centering tube, on the centering tube rear side end face water seal circle is housed.
A secondary thrust stationary ring and a thrust rotating ring respectively adorned in described rear bearing block set both sides, and the thrust stationary ring is nonmetallic material, and the thrust rotating ring is contained on the pump shaft, for cemented carbide or spray hard.
Described balance plate and Balance disc are the branch body structure, and the inside and outside two ends of balance plate are respectively equipped with inner pressure ring and outer press ring, and balance plate is nonmetallic material, and Balance disc is that cemented carbide is made.
The invention solves magnetic force driving pump can resist find time, the difficult problem of anti-dry grinding, the operating mode backspin that can find time for a long time in pipe-line system then do not damage any part in the pump will generate heat in the pump when finding time, but in the pump each friction pair to the high temperature resistant dry grinding of mill material; When finding time, the balance sysmte in the pump keeps proper functioning, owing to adopted the liquid cooling external cooling circulatory system, the external condensation system at heating component places such as seal closure, bearing, balance plate is opened automatically or kept often opening, and its temperature is controlled within the scope of design.
The zero leakage sealability that the present invention makes magnetic drive pump with adapt to on-the-spot all conditions of finding time under anti-ly find time, the performance of anti-dry grinding combines, and will never allow a leakage when oil, chemical industry, oil field, oil depot, pharmacy, food, health etc. are used for carrying poisonous, harmful, inflammable, explosive medium and intake line often finds time to be used widely in the manufacturing enterprise of working condition.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
A kind of high-power anti-magnetic force driving pump of finding time (from several kilowatts to hundreds of kilowatt) comprises pump shaft, bearing and magnet rotor.Pump shaft 18 leading portions are equipped with pump housing seal chamber 16, be connected with fore bearing block set 15 thereafter, fore bearing block set 15 upper bearing (metal) places are provided with fore bearing water cavity cover 17, pump shaft 18 back segments are provided with rear bearing block set 32, rear bearing block set 32 is supported by pump housing supporting leg 10, rear bearing water cavity cover 31 is equipped with at rear bearing block set 32 upper bearing (metal) places, and fore bearing block set 15 is connected with rear bearing block set 32 seams; On fore bearing block set 15 and rear bearing block set 32 sliding bearing 11 is housed respectively, sliding bearing 11 is nonmetallic material, is that hot charging is among the front and back bearings block set.Adorn an axle sleeve 8 on the above-mentioned pump shaft 18, axle sleeve 8 is cemented carbide or coated with hard alloy, axle sleeve 8 and the both-end dual-gripper of sliding bearing 11 pairing formation to pump shaft 18.Fore bearing block set 15 rear side end faces are established a balance plate 14, balance plate 14 rear sides adorn one with the Balance disc 13 of its pairing.Balance plate 14 is the branch body structure with Balance disc 13, and balance plate 14 inside and outside two ends are respectively equipped with inner pressure ring 34 and outer press ring 33, and balance plate 14 is nonmetallic material, and Balance disc 13 is made for cemented carbide.A secondary thrust stationary ring 6 and a thrust rotating ring 5 respectively adorned in rear bearing block set 32 both sides, and thrust stationary ring 6 is nonmetallic material, and thrust rotating ring 5 is contained on the pump shaft 18, is cemented carbide or coated with hard alloy.The cover 12 that refluxes is housed between thrust rotating ring 5 and the axle sleeve 8, and the cover 12 that refluxes is contained on the pump shaft 18; Rear bearing block set 32 rear ends connect a seal closure 2, and a platen 9 is established in seal closure 2 front end outsides, and platen 9 rear sides are established an external cooling drainage dish 29, and external cooling drainage dish 29 rear sides connect centering tube 28, and centering tube 28 is connected with motor 20 seams.Pump housing seal chamber 16, fore bearing block set 15, rear bearing block set 32 and platen 9 are to connect fastening with long coupling bolt 35.Establish magnet rotor 3 in the above-mentioned pump shaft 18 back-end sealing covers 2, a round nut 26 and lock washer 27 are adorned in interior magnet rotor 3 rear ends, are used for locking and locking parts on shaft; An outer magnet rotor 4 is established in seal closure 2 outsides, and outer magnet rotor 4 fuses with the outer seat 1 of outer magnet rotor, is contained on the motor shaft end.Outer magnet rotor 4 front side outer peripheral surfaces are provided with external cooling circulation wheel 7, for semi-open type or unshrouded impeller, together rotate with motor shaft, outer magnet rotor 4 rear side end faces are equipped with water-throwing disk 24, the rear side of water-throwing disk 24 is adorned an external cooling hub disk 23 on centering tube 28, on the centering tube 28 rear side end faces water seal circle 21 is housed.Water-throwing disk 24, water seal circle 21, external cooling hub disk 23 etc. have constituted the external cooling circulatory system on seal closure 2 cylindrical sides.Centering tube 28 belows are connected with external cooling outlet pipe, external cooling spill pipe and condensed water passage, and above-mentioned centering tube 28 both sides are provided with besel 37.
Pump rotor shaft axis of the present invention and electrical axis line are to guarantee concentricity by centering tube 28 seam docking structures, need not centering when it is installed, and provide a reciprocation cycle and an airtight working space for the external cooling liquid of external condensation system.Be provided with barring hole opening, overflow hole, spill pipe, condensation hole, condensation tube etc. on the centering tube, be provided with barring hole 22 on the long wheel hub of the outer seat 1 of magnet rotor outside, with the direct jiggering of jiggering handle.
The pump housing connects an external condensation system control valve, and when pump intake was found time, the external condensation system control valve will be opened automatically, opens size and changes along with the size of the degree of finding time, and closes when finding time to disappear, and also can be set to normally open.External cooling liquid is entered by fore bearing water cavity cover 17, in the annulus of order through balance plate 14, rear bearing water cavity cover 31, drainage dish 29, seal closure 2 and outer magnet rotor 4, enter low pressure area-external cooling circulation and take turns 7 ingress via having been got rid of by water-throwing disk 24 behind the outer panel face of the outer seat 1 of outer magnet rotor again, go among entering next circulation again after wheel sucks and boosts thus, and the liquid that leaks at water-throwing disk 24 places will form the water ring sealing in the outside of this dish.The eddy current heat at the heat of each friction pair, seal closure 2 places all is recycled mobile external cooling liquid and takes away, its temperature is maintained at low numerical value and down and no longer raises, the total frictional force square of each friction pair is much smaller than magnetic torque, pump is after finding time, pump shaft still can be done synchronous rotation with motor shaft, does not throw switch, non-slip.
Be provided with rational dismounting hole on the position of pump housing chassis installation motor, along shaft axis and as the axis of symmetry each two row under motor cabinet, Kong Yukong interlaces, and is respectively in axis of symmetry both sides, even the motor that last ton is heavy and its are gone up configuration-system, also can ten minutes load onto easily and pull down.
Claims (9)
1, a kind of magnetic force driving pump, comprise pump shaft, bearing and magnet rotor, it is characterized in that above-mentioned pump shaft (18) leading portion is provided with fore bearing block set (15), fore bearing block set (15) upper bearing (metal) place is provided with fore bearing water cavity cover (17), pump shaft (18) back segment is provided with rear bearing block set (32), rear bearing block set (32) upper bearing (metal) place is provided with rear bearing water cavity cover (31), on above-mentioned fore bearing block set (15) and the rear bearing block set (32) sliding bearing (11) is housed respectively, adorn an axle sleeve (8) on the above-mentioned pump shaft (18), axle sleeve (8) and the both-end dual-gripper of bearing (11) pairing formation to pump shaft (18); Above-mentioned fore bearing block set (15) rear side end face is established a balance plate (14), balance plate (14) rear side adorn one with the Balance disc (13) of described balance plate (14) pairing; Above-mentioned rear bearing block set (32) rear end connects a seal closure (2), a platen (9) is established in seal closure (2) front end outside, platen (9) rear side is established an external cooling drainage dish (29), and external cooling drainage dish (29) rear side connects centering tube (28), and centering tube (28) is connected with motor (20) seam; Establish magnet rotor (3) in above-mentioned pump shaft (18) the back-end sealing cover (2), an outer magnet rotor (4) is established in seal closure (2) outside, outer magnet rotor (4) fuses with the outer seat of outer magnet rotor (1), be contained on the motor shaft end, outer magnet rotor (4) front side outer peripheral surface is provided with external cooling circulation wheel (7), together rotates with motor shaft; Outer magnet rotor (4) rear side end face is equipped with water-throwing disk (24), goes up the rear side of water-throwing disk (24) at centering tube (28) and adorns an external cooling hub disk (23), on centering tube (28) the rear side end face water seal circle (21) is housed.
2, a kind of magnetic force driving pump according to claim 1, it is characterized in that described rear bearing block set (32) both sides respectively adorn a secondary thrust stationary ring (6) and thrust rotating ring (5), thrust stationary ring (6) is nonmetallic material, thrust rotating ring (5) is contained on the pump shaft (18), is cemented carbide or coated with hard alloy.
3, a kind of magnetic force driving pump according to claim 1, it is characterized in that described balance plate (14) and Balance disc (13) are the branch body structure, the inside and outside two ends of balance plate (14) are respectively equipped with inner pressure ring (34) and outer press ring (33), above-mentioned balance plate (14) is nonmetallic material, and Balance disc (13) is made for cemented carbide.
4, a kind of magnetic force driving pump according to claim 1, it is characterized in that described in magnet rotor (3) rear end adorn a round nut (26) and lock washer (27).
5, a kind of magnetic force driving pump according to claim 1 is characterized in that described centering tube (28) below is connected with external cooling outlet pipe, external cooling spill pipe and condensed water passage, and above-mentioned centering tube (28) both sides are provided with besel (37).
6, a kind of magnetic force driving pump according to claim 1 is characterized in that the long wheel hub of the outer seat of described outer magnet rotor (1) is provided with barring hole (22).
7, a kind of magnetic force driving pump according to claim 1 is characterized in that described sliding bearing (11) is nonmetallic material, and axle sleeve (8) is cemented carbide or coated with hard alloy.
8, a kind of magnetic force driving pump according to claim 1 is characterized in that respectively being provided with two row's dismounting holes on pump housing chassis along shaft axis and as the axis of symmetry under motor cabinet, and Kong Yukong interlaces, and is respectively in axis of symmetry both sides.
9, a kind of magnetic force driving pump according to claim 1 is characterized in that it also comprises an external condensation system control valve that is connected with the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410091992XA CN100427765C (en) | 2004-12-29 | 2004-12-29 | Pump driven by magnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410091992XA CN100427765C (en) | 2004-12-29 | 2004-12-29 | Pump driven by magnetic force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796794A CN1796794A (en) | 2006-07-05 |
| CN100427765C true CN100427765C (en) | 2008-10-22 |
Family
ID=36818044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410091992XA Expired - Fee Related CN100427765C (en) | 2004-12-29 | 2004-12-29 | Pump driven by magnetic force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100427765C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3022963B1 (en) | 2014-06-27 | 2016-11-11 | Thermodyn | COOLING SYSTEM FOR MAGNETIC AXIAL BEARING |
| CN109958653A (en) * | 2019-04-02 | 2019-07-02 | 中国北方发动机研究所(天津) | A kind of two-sided water pump reliably sealed |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398175A1 (en) * | 1989-05-13 | 1990-11-22 | RHEINHÜTTE GMBH & CO. | Magnetically coupled pump |
| US5184945A (en) * | 1991-12-27 | 1993-02-09 | Assoma, Inc. | Bushing structure for using in magnetically driving centrifugal pumps |
| CN2480589Y (en) * | 2001-05-28 | 2002-03-06 | 丹东边境经济合作区克隆集团有限公司 | Magnetic pump |
| CN2756879Y (en) * | 2004-12-29 | 2006-02-08 | 张苏 | Magnetic driving pump |
-
2004
- 2004-12-29 CN CNB200410091992XA patent/CN100427765C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398175A1 (en) * | 1989-05-13 | 1990-11-22 | RHEINHÜTTE GMBH & CO. | Magnetically coupled pump |
| US5184945A (en) * | 1991-12-27 | 1993-02-09 | Assoma, Inc. | Bushing structure for using in magnetically driving centrifugal pumps |
| CN2480589Y (en) * | 2001-05-28 | 2002-03-06 | 丹东边境经济合作区克隆集团有限公司 | Magnetic pump |
| CN2756879Y (en) * | 2004-12-29 | 2006-02-08 | 张苏 | Magnetic driving pump |
Non-Patent Citations (4)
| Title |
|---|
| 国内磁力驱动泵的现状和发展. 陈伟.化工设备与管道，第3期. 1994 |
| 国内磁力驱动泵的现状和发展. 陈伟.化工设备与管道，第3期. 1994 * |
| 绿色流体输送机械-磁力驱动泵. 臧戈飞，李岩.通用机械，第8期. 2003 |
| 绿色流体输送机械-磁力驱动泵. 臧戈飞，李岩.通用机械，第8期. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1796794A (en) | 2006-07-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20121229 |