CN103486087A - Axial force balancing magnetic pump - Google Patents
Axial force balancing magnetic pump Download PDFInfo
- Publication number
- CN103486087A CN103486087A CN201310417736.4A CN201310417736A CN103486087A CN 103486087 A CN103486087 A CN 103486087A CN 201310417736 A CN201310417736 A CN 201310417736A CN 103486087 A CN103486087 A CN 103486087A
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- impeller
- pump
- pump cover
- axial force
- face
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention relates to an axial force balancing magnetic pump comprising a pump body (1), a pump cover (2), a spindle (3), an impeller (4), an inner magnetic rotor (5), a spacer sleeve (6), an outer magnetic rotor (7), a connecting frame (8), a bearing box (9) and a driving shaft (90). The axial force balancing magnetic pump is characterized in that a throttling bulge loop (22) is arranged on the left end face of the pump cover (2) and matched with a back end face (4') of an inner impeller of an impeller ring seat (42) to form a throttling seam (F) and a pressure balancing cavity (P). When the pump is started or working conditionchanges, the impeller (4) moves rightwards under stress, so that the throttling seam (F) is narrowed, pressure in the pressure cavity (P) is increased, pressure on the front and back sides of the impeller (4) is balanced, axial force can be automatically adjusted and balanced, and the impeller (4) is effectively prevented from driving shafting to generate axial force impact.
Description
Technical field
The present invention relates to the magnetic drive pump that is, particularly a kind of magnetic drive pump that improves axial force balance.
Technical background
Magnetic drive pump comprises the pump housing 1, pump cover 2, main shaft 3, impeller 4, interior magnet rotor 5, separation sleeve 6, outer magnet rotor 7, link press span 8, bearing housing 9, separation sleeve 6 is sealedly and fixedly connected and makes shaft seal with pump cover 2, is arranged on interior magnet rotor 5 on main shaft 3 and 6 coordinates with the outer magnet rotor 7 of separation sleeve 6 outsides and be with main shaft 3 rotations in separation sleeve.
Prior art pump cover 2 and impeller 4 are slidably matched by pump cover choma 20 and impeller port ring 40 gaps, the medium of pump chamber inner high voltage district A enters into impeller 4 trailing flanks by pump cover choma 20 and impeller port ring 40 gaps, medium is got back to impeller 4 entrance low pressure areas at the backflow equalizing orifice 41 of offering from impeller 4, it carries out balance by the zone of high pressure medium being incorporated into to the flat high pressure that impeller 4 leading flanks are born of impeller 4 dorsal surfaces, reaches and makes impeller 4 stressed tending to balance in the axial direction.But because pump pressure working condition when working is to change, and the size of its return port 41 is changeless, so can not adapt to the pressure working condition of pump changes, can not fully there is the axially loaded to impeller 4 to carry out balance, easily cause the stressed impact sword of shaft components and wear damage, thereby make magnetic drive pump reduce working life.
Summary of the invention
The objective of the invention is to be improved for above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, manufacture easyly, can fully effectively to axial force, carry out the magnetic drive pump of balancing magnetic force pump.
Magnetic drive pump of the present invention includes the pump housing 1, pump cover 2, main shaft 3, impeller 4, interior magnet rotor 5, separation sleeve 6, outer magnet rotor 7, link press span 8, bearing housing 9, live axle 90, pump cover 2 is bolted to connection with the pump housing 1, pump cover 2 coordinates with bolt and is fixedly connected with by seam with link press span 8, main shaft 3 is arranged on pump cover 2 by bearing means, separation sleeve 6 is sealedly and fixedly connected with the rear end plate 23 of pump cover 2, front end at pump chamber inner main axis 3 is fixedly connected with impeller 4, in separation sleeve 6 inner chambers, the rear end of main shaft 3 is fixedly connected with interior magnet rotor 5, outer magnet rotor 7 is fixedly mounted on live axle 90, pump cover 2 and impeller 4 are slidably matched by pump cover choma 20 and impeller port ring 40 gaps, offer backflow equalizing orifice 41 on impeller 4, it is characterized in that being provided with throttling bulge loop 22 and coordinate formation throttle slot F and pressure balance chamber P with the dorsal part end face 4 ' of impeller port ring seat 42 inboard impellers on pump cover 2 left end face, or be provided with the throttling bulge loop coordinate with pump cover 2 left end face and form throttle slot F and pressure balance chamber P on the dorsal part end face 4 ' of the inboard impeller of impeller port ring seat 42.
The present invention is simple in structure, easily manufactured.After medium passes through pump cover choma 20 and impeller port ring 40, enter into the pressure balance chamber P be split into by pump cover 2 and 4, impeller and 22 of throttling bulge loops, when pump startup or working conditions change, impeller 4 is subject to rapidly responsive to axial force to the right, impeller 4 rotor drivens are slippage to the right, make at this very moment throttle slot F diminish immediately, make the medium earial drainage backflow of pressure chamber P be tending towards being sealed, make the pressure in pressure chamber P increase immediately, the pressure that impeller 4 front sides and dorsal part are born reaches balance; Otherwise it is large that throttle slot F becomes, the pressure decreased in pressure chamber P, form automatic adjustment axial force, effectively prevents that impeller 4 band moving axis systems from producing axial force and impacting.
The accompanying drawing explanation
Fig. 1 is the prior art structural representation.
Fig. 2 is embodiment of the present invention structural representation.
Fig. 3 is the total enlarged view of the office of Fig. 2.
Embodiment
Magnetic drive pump of the present invention is by the pump housing 1, pump cover 2, main shaft 3, impeller 4, interior magnet rotor 5, separation sleeve 6, outer magnet rotor 7, link press span 8, bearing housing 9, live axle 90 forms, pump cover 2 is bolted to connection with the pump housing 1, pump cover 2 coordinates with bolt and is fixedly connected with by seam with link press span 8, main shaft 3 is arranged on pump cover 2 by bearing means, separation sleeve 6 is sealedly and fixedly connected with the rear end plate 23 of pump cover 2, front end at pump chamber inner main axis 3 is fixedly connected with impeller 4, in separation sleeve 6 inner chambers, the rear end of main shaft 3 is fixedly connected with interior magnet rotor 5, outer magnet rotor 7 is fixedly mounted on live axle 90, pump cover 2 and impeller 4 are slidably matched by pump cover choma 20 and impeller port ring 40 gaps, offer backflow equalizing orifice 41 on impeller 4, it is characterized in that being provided with throttling bulge loop 22 and coordinate formation throttle slot F and pressure balance chamber P with the dorsal part end face 4 ' of impeller port ring seat 42 inboard impellers on pump cover 2 left end face, or be provided with the throttling bulge loop coordinate with pump cover 2 left end face and form throttle slot F and pressure balance chamber P on the dorsal part end face 4 ' of the inboard impeller of impeller port ring seat 42.
Claims (1)
1. axial force balance magnetic drive pump, include the pump housing (1), pump cover (2), main shaft (3), impeller (4), interior magnet rotor (5), separation sleeve (6), outer magnet rotor (7), link press span (8), bearing housing (9), live axle (90), pump cover (2) and impeller (4) are slidably matched by pump cover choma (20) and impeller port ring (40) gap, offer backflow equalizing orifice (41) on impeller (4), it is characterized in that being provided with throttling bulge loop (22) and coordinate formation throttle slot (F) and pressure balance chamber (P) with the dorsal part end face (4 ') of the inboard impeller of impeller port ring seat (42) on pump cover (2) left end face, or be provided with the throttling bulge loop coordinate with pump cover (2) left end face and form throttle slot (F) and pressure balance chamber (P) on the dorsal part end face (4 ') of the inboard impeller of impeller port ring seat (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417736.4A CN103486087A (en) | 2013-09-15 | 2013-09-15 | Axial force balancing magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417736.4A CN103486087A (en) | 2013-09-15 | 2013-09-15 | Axial force balancing magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103486087A true CN103486087A (en) | 2014-01-01 |
Family
ID=49826584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310417736.4A Pending CN103486087A (en) | 2013-09-15 | 2013-09-15 | Axial force balancing magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486087A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298865A (en) * | 2015-12-02 | 2016-02-03 | 湖南机电职业技术学院 | Integrated magnetic pump of micro pump driven on basis of axial motor |
| CN105508260A (en) * | 2015-12-18 | 2016-04-20 | 安徽南方化工泵业有限公司 | Axial balanced type metal magnetic drive pump |
| CN106014643A (en) * | 2016-07-13 | 2016-10-12 | 上海电气燃气轮机有限公司 | Axial force adjusting device of gas turbine |
| CN107084156A (en) * | 2017-06-14 | 2017-08-22 | 湖南山水泵业有限公司 | Centrifugal pump and its balance control method |
| CN109209897A (en) * | 2018-11-06 | 2019-01-15 | 江苏大学 | Multistage centrifugal pump rotor axial force balance mechanism |
| CN111963442A (en) * | 2020-09-03 | 2020-11-20 | 江苏长江水泵有限公司 | Double-balance-hub-structure low-speed mining multistage centrifugal pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285841Y (en) * | 1996-07-19 | 1998-07-08 | 浙江省机电设计研究院 | Automatic axial force balancing device for magnetic pump |
| US6264440B1 (en) * | 1998-10-29 | 2001-07-24 | Innovative Mag-Drive, L.L.C. | Centrifugal pump having an axial thrust balancing system |
| CN2486753Y (en) * | 2001-06-20 | 2002-04-17 | 杭州大路实业有限公司 | Magnetic force driving pump |
| CN201162705Y (en) * | 2008-03-18 | 2008-12-10 | 江苏新腾宇流体设备制造有限公司 | Magnetic transmission petroleum chemical flow-process pump |
| CN101555880A (en) * | 2009-05-13 | 2009-10-14 | 丹东克隆集团有限责任公司 | Magnetic pump |
| CN201401336Y (en) * | 2009-05-13 | 2010-02-10 | 丹东克隆集团有限责任公司 | Axial-thrust balancing centrifugal pump |
| CN203516224U (en) * | 2013-09-15 | 2014-04-02 | 丹东克隆先锋泵业有限公司 | Axial force balance magnetic pump |
-
2013
- 2013-09-15 CN CN201310417736.4A patent/CN103486087A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285841Y (en) * | 1996-07-19 | 1998-07-08 | 浙江省机电设计研究院 | Automatic axial force balancing device for magnetic pump |
| US6264440B1 (en) * | 1998-10-29 | 2001-07-24 | Innovative Mag-Drive, L.L.C. | Centrifugal pump having an axial thrust balancing system |
| CN2486753Y (en) * | 2001-06-20 | 2002-04-17 | 杭州大路实业有限公司 | Magnetic force driving pump |
| CN201162705Y (en) * | 2008-03-18 | 2008-12-10 | 江苏新腾宇流体设备制造有限公司 | Magnetic transmission petroleum chemical flow-process pump |
| CN101555880A (en) * | 2009-05-13 | 2009-10-14 | 丹东克隆集团有限责任公司 | Magnetic pump |
| CN201401336Y (en) * | 2009-05-13 | 2010-02-10 | 丹东克隆集团有限责任公司 | Axial-thrust balancing centrifugal pump |
| CN203516224U (en) * | 2013-09-15 | 2014-04-02 | 丹东克隆先锋泵业有限公司 | Axial force balance magnetic pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298865A (en) * | 2015-12-02 | 2016-02-03 | 湖南机电职业技术学院 | Integrated magnetic pump of micro pump driven on basis of axial motor |
| CN105508260A (en) * | 2015-12-18 | 2016-04-20 | 安徽南方化工泵业有限公司 | Axial balanced type metal magnetic drive pump |
| CN106014643A (en) * | 2016-07-13 | 2016-10-12 | 上海电气燃气轮机有限公司 | Axial force adjusting device of gas turbine |
| CN107084156A (en) * | 2017-06-14 | 2017-08-22 | 湖南山水泵业有限公司 | Centrifugal pump and its balance control method |
| CN109209897A (en) * | 2018-11-06 | 2019-01-15 | 江苏大学 | Multistage centrifugal pump rotor axial force balance mechanism |
| CN111963442A (en) * | 2020-09-03 | 2020-11-20 | 江苏长江水泵有限公司 | Double-balance-hub-structure low-speed mining multistage centrifugal pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |