CN111594481B - Low-eddy-loss high-efficiency magnetic pump - Google Patents
Low-eddy-loss high-efficiency magnetic pump Download PDFInfo
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- CN111594481B CN111594481B CN202010467526.6A CN202010467526A CN111594481B CN 111594481 B CN111594481 B CN 111594481B CN 202010467526 A CN202010467526 A CN 202010467526A CN 111594481 B CN111594481 B CN 111594481B
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- magnetic steel
- steel assembly
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 238000002955 isolation Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000009351 contact transmission Effects 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 24
- 229920006351 engineering plastic Polymers 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 8
- 239000006247 magnetic powder Substances 0.000 claims description 8
- 230000035699 permeability Effects 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000010102 injection blow moulding Methods 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 229910052582 BN Inorganic materials 0.000 claims 1
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of magnetic pumps, and particularly relates to a low-eddy-loss high-efficiency magnetic pump. The effective non-magnetic-conductive gap between the outer magnetic steel and the inner magnetic steel can be reduced, and the magnetic flux density of the air gap between the inner magnetic steel and the outer magnetic steel of the magnetic pump is improved. Comprises a magnetic pump body; the magnetic pump is characterized in that the magnetic pump body consists of a pump body, a static ring, an impeller, a sealing ring, a thrust ring, a bearing, a shaft sleeve, an impeller supporting body, an external magnetic steel assembly, an isolation sleeve, an internal magnetic steel assembly, a magnetic transmission shell, a fixed supporting body and a rotary supporting body; the magnetic transmission device is arranged in the magnetic transmission shell and is assembled on the external magnetic steel assembly and the internal magnetic steel assembly according to the N pole and S pole alternating rule by even number of permanent magnets, the isolation sleeve is arranged in the gap between the external magnetic steel assembly and the internal magnetic steel assembly, and a movement gap is reserved between the isolation sleeve and the external magnetic steel assembly and between the isolation sleeve and the internal magnetic steel assembly, so that the non-contact transmission of power is realized.
Description
Technical Field
The invention belongs to the technical field of magnetic pumps, and particularly relates to a low-eddy-loss high-efficiency magnetic pump.
Background
The magnetic pump is a novel pump which realizes torque contactless transmission by utilizing the magnetic transmission of a permanent magnet. When the motor drives the outer magnetic steel of the magnetic coupler to rotate, the inner magnetic steel synchronously rotates under the action of a magnetic field, and the pump impeller and the inner magnetic steel are coaxially arranged, so that the impeller and the motor synchronously rotate to carry out sealed conveying of media. In order to realize the isolation of the transmission medium from the external environment, an isolation sleeve is arranged between the internal magnet and the external magnet, and the isolation sleeve is of a thin-shell structure made of metal materials and is in a hat shape.
In the prior art, the spacer sleeve is made of non-magnetic corrosion-resistant materials, and the spacer sleeve increases the equivalent electromagnetic air gap between the outer magnetic steel and the inner magnetic steel, so that the use amount of the inner and outer magnetic steels is increased, and the cost of the magnetic pump is increased; particularly, the isolating sleeve positioned between the inner magnetic steel and the outer magnetic steel is static, eddy current can be generated under the action of a magnetic field between the inner magnetic steel and the outer magnetic steel, and the eddy current loss causes the energy consumption increase and the efficiency reduction of the magnetic pump.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the low-eddy-loss high-efficiency magnetic pump.
In order to achieve the purpose, the invention adopts the following technical scheme that the magnetic pump comprises a magnetic pump body; the magnetic pump is characterized in that the magnetic pump body consists of a pump body, a static ring, an impeller, a sealing ring, a thrust ring, a bearing, a shaft sleeve, an impeller supporting body, an external magnetic steel assembly, a separation sleeve, an internal magnetic steel assembly, a magnetic transmission shell, a fixed supporting body and a rotary supporting body.
The magnetic transmission device is arranged in the magnetic transmission shell and is assembled on the external magnetic steel assembly and the internal magnetic steel assembly according to the N pole and S pole alternating rule by even number of permanent magnets, the isolation sleeve is arranged in the gap between the external magnetic steel assembly and the internal magnetic steel assembly, and a movement gap is reserved between the isolation sleeve and the external magnetic steel assembly and between the isolation sleeve and the internal magnetic steel assembly, so that the non-contact transmission of power is realized.
Further, the rotary support is connected to a drive motor.
Furthermore, the isolation sleeve is made of composite materials.
Furthermore, the composite material of the isolation sleeve is prepared by doping and mixing a high-resistivity material and a high-permeability material according to a certain proportion, and performing injection molding, blow molding, extrusion and sintering.
Furthermore, the spacer sleeve has good magnetic conductivity and poor conductivity by adjusting and controlling the doping mixing ratio of the high-resistivity material and the high-permeability material.
Further, the high resistivity material includes engineering plastic Polyamide (PA) powder, engineering plastic acrylonitrile-butadiene-styrene plastic (ABS) powder, engineering Plastic Polypropylene (PP) powder, Boron Nitride (BN) powder, and silicate-based non-metallic material glass powder.
Further, the high permeability material includes corrosion-resistant stainless steel SUS430 (1 Cr 17), SUS414 (1 Cr13Ni 2) powder, steel No. 45 powder, and soft magnetic ferrite powder.
Still further, the high permeability material also includes corrosion resistant magnetically permeable powder.
Further, the corrosion-resistant magnetically conductive powder is SUS430 (1 Cr 17) stainless steel magnetically conductive powder; or SUS414 (1 Cr13Ni 2) stainless steel magnetically conductive powder.
Further, the magnetic conductive powder is No. 45 steel magnetic powder or soft magnetic ferrite magnetic powder.
Compared with the prior art, the invention has the beneficial effects.
The isolating sleeve of the magnetic pump can reduce the effective non-magnetic-conductive gap between the outer magnetic steel and the inner magnetic steel, improve the magnetic flux density of the air gap between the inner magnetic steel and the outer magnetic steel of the magnetic pump, reduce the power loss in the power transmission process, greatly reduce the energy consumption of the magnetic pump, obviously improve the transmission efficiency and have obvious energy-saving effect.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the spacer of the present invention.
Fig. 3 is a left side view of fig. 2.
In the figure, 1 pump body; 2, a stationary ring; 3, an impeller; 4, sealing rings; 5 a thrust ring; 6, a bearing; 7, a shaft sleeve; 8 impeller supporting body; 9, an external magnetic steel assembly; 10, an isolation sleeve; 11 an internal magnetic steel assembly; 12 a magnetic transmission housing; 13 fixing the support body; 14 rotating the support.
Detailed Description
As shown in fig. 1-3, the invention comprises a pump body 1, a stationary ring 2, an impeller 3, a sealing ring 4, a thrust ring 5, a bearing 6, a shaft sleeve 7, an impeller supporting body 8, an external magnetic steel assembly 9, a spacer sleeve 10, an internal magnetic steel assembly 11, a magnetic transmission casing 12, a fixed supporting body 13 and a rotary supporting body 14.
The key components of the magnetic transmission shell 12 are internally provided with a magnetic transmission device, m permanent magnets (m is an even number) are arranged and assembled on the external magnetic steel assembly 9 and the internal magnetic steel assembly 11 according to the rule that N poles and S poles are alternated, the isolation sleeve 10 is arranged in a gap between the external magnetic steel assembly 9 and the internal magnetic steel assembly, and a movement gap is reserved between the isolation sleeve and the external magnetic steel assembly 9 and the internal magnetic steel assembly so as to realize the non-contact transmission of power, and the rotary support 14 is connected with a driving motor.
In this embodiment, the isolation sleeve 10 is formed by mixing 61.8% of engineering plastic powder and 38.2% of magnetic conductive powder (volume ratio), and is formed into a top hat shape with a thickness of 0.5mm by injection molding or blow molding, and the isolation sleeve 10 is fixedly connected and sealed with the pump body 1 through the sealing ring 4.
The magnetic pump of the invention adopts the spacer sleeve formed by doping and mixing the high resistivity material and the high magnetic permeability material, so that the effective non-magnetic-conductive gap between the outer magnetic steel and the inner magnetic steel can be reduced, the magnetic flux density of the air gap between the inner magnetic steel and the outer magnetic steel of the magnetic pump is improved, the power loss in the power transmission process is reduced, the energy consumption of the magnetic pump is greatly reduced, the transmission efficiency is obviously improved, and the energy-saving effect is obvious.
Similarly, the magnetic pump of the invention adopts the technical scheme that the isolation sleeve is formed by doping and mixing the high-resistivity material and the high-permeability material, can also be used for carrying out anticorrosion sealing on the inner magnetic steel soaked in the conveying medium, replaces the non-magnetic anticorrosion sealing element in the prior art, can increase the capacity of the inner magnetic steel for generating a torque magnetic field, and improves the transmission capacity of the magnetic pump.
In addition, the composite isolation sleeve also has higher mechanical strength and corrosion resistance, and ensures the safety and reliability of the operation of the magnetic pump. The popularization and application of the invention can thoroughly solve the problem of obtaining the full-sealed transmission of the magnetic pump by means of high energy consumption and low quality, and achieve the purposes of safety, environmental protection, energy saving and consumption reduction.
Specifically, the doping ratio of the high-resistivity material and the high-permeability material is adjusted to regulate the magnetic permeability and the electric conductivity of the isolation sleeve, so that the magnetic permeability of the isolation sleeve is improved, the electric conductivity of the isolation sleeve is reduced, on one hand, the air gap magnetic field intensity between the inner magnetic steel and the outer magnetic steel is improved to improve the power transmission capacity, and on the other hand, eddy current is inhibited to reduce eddy current loss and improve the efficiency.
Preferably, the high resistivity material and the high permeability material are doped in a powder state, and the powder is in a nano-scale state.
Preferably, if the magnetic pump delivers a strong corrosive medium in the scheme, that is, the composite isolation sleeve is required to have strong corrosion resistance, the magnetic conductive powder used by the composite isolation sleeve should have corrosion resistance.
Further, the corrosion-resistant magnetic conductive powder was SUS430 (1 Cr 17) stainless steel magnetic conductive powder.
Further, the corrosion-resistant magnetically conductive powder was SUS414 (1 Cr13Ni 2) stainless steel magnetically conductive powder.
If the conveying medium of the magnetic pump has low corrosivity, namely the requirement on the corrosion resistance of the composite isolation sleeve is low, common magnetic powder can be selected.
Further, the magnetic conductive powder is No. 45 steel magnetic powder.
Further, soft magnetic ferrite magnetic powder.
Preferably, the high resistivity material is selected from engineering plastic powders.
Further, engineering plastic Polyamide (PA) powder is adopted as the engineering plastic powder.
Further, the engineering plastic powder is engineering plastic acrylonitrile-butadiene-styrene (ABS) powder.
Further, the engineering plastic powder is engineering Plastic Polypropylene (PP) powder.
Further, Boron Nitride (BN) powder is adopted as the engineering plastic powder.
Furthermore, the engineering plastic powder adopts silicate non-metallic material glass powder.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (8)
1. A low eddy-current loss high-efficiency magnetic pump comprises a magnetic pump body; the magnetic pump is characterized in that the magnetic pump body consists of a pump body, a static ring, an impeller, a sealing ring, a thrust ring, a bearing, a shaft sleeve, an impeller supporting body, an external magnetic steel assembly, an isolation sleeve, an internal magnetic steel assembly, a magnetic transmission shell, a fixed supporting body and a rotary supporting body;
the magnetic transmission device is arranged in the magnetic transmission shell, and consists of an even number of permanent magnets which are arranged and assembled on the external magnetic steel assembly and the internal magnetic steel assembly according to the N pole and S pole alternating rule, the isolation sleeve is arranged in a gap between the external magnetic steel assembly and the internal magnetic steel assembly, and a movement gap is reserved between the isolation sleeve and the external magnetic steel assembly and between the isolation sleeve and the internal magnetic steel assembly so as to realize the non-contact transmission of power;
the isolation sleeve is made of composite material;
the composite material of the isolation sleeve is prepared by doping and mixing a high-resistivity material and a high-permeability material according to a certain proportion and performing injection molding or blow molding or extrusion or sintering.
2. The low eddy current loss high efficiency magnetic pump of claim 1, wherein: the rotary support body is connected with a driving motor.
3. The low eddy current loss high efficiency magnetic pump of claim 1, wherein: the spacer sleeve has good magnetic conductivity and poor conductivity by adjusting and controlling the doping mixing ratio of the high-resistivity material and the high-permeability material.
4. A low eddy current loss high efficiency magnetic pump as claimed in claim 3, wherein: the high resistivity material includes engineering plastic polyamide powder, engineering plastic acrylonitrile-butadiene-styrene plastic powder, engineering plastic polypropylene powder, boron nitride powder and silicate non-metal material glass powder.
5. The low eddy current loss high efficiency magnetic pump of claim 1, wherein: the high permeability material includes corrosion-resistant stainless steel SUS430, SUS414 powder, steel powder No. 45, and soft magnetic ferrite powder.
6. The low eddy current loss high efficiency magnetic pump of claim 1, wherein: the high permeability material comprises a corrosion resistant magnetically permeable powder.
7. The low eddy current loss high efficiency magnetic pump of claim 6, wherein: the corrosion-resistant magnetic conductive powder is SUS430 stainless steel magnetic conductive powder or SUS414 stainless steel magnetic conductive powder.
8. The low eddy current loss high efficiency magnetic pump of claim 6, wherein: the magnetic powder is No. 45 steel magnetic powder or soft magnetic ferrite magnetic powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010467526.6A CN111594481B (en) | 2020-05-28 | 2020-05-28 | Low-eddy-loss high-efficiency magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010467526.6A CN111594481B (en) | 2020-05-28 | 2020-05-28 | Low-eddy-loss high-efficiency magnetic pump |
Publications (2)
| Publication Number | Publication Date |
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| CN111594481A CN111594481A (en) | 2020-08-28 |
| CN111594481B true CN111594481B (en) | 2021-12-28 |
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| CN202010467526.6A Active CN111594481B (en) | 2020-05-28 | 2020-05-28 | Low-eddy-loss high-efficiency magnetic pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113958508B (en) * | 2021-10-19 | 2024-04-16 | 滨嘉科技集团有限公司 | Low-eddy-loss high-efficiency magnetic pump and production process thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3636404A1 (en) * | 1986-10-25 | 1988-04-28 | Richter Chemie Technik Gmbh | MAGNETIC CENTRIFUGAL PUMP |
| CN1949406A (en) * | 2005-10-10 | 2007-04-18 | 四川大学 | Composite soft magnetic powder magnetic conducting material for slot wedge of electric machine and preparation thereof |
| CN101446291B (en) * | 2007-11-27 | 2012-10-24 | 沈阳工业大学 | High-efficiency shield pump |
| CN101225827A (en) * | 2008-01-21 | 2008-07-23 | 蔡国华 | Separation sleeve for magnetic pump or shield pump |
| CN201910675U (en) * | 2010-11-25 | 2011-07-27 | 沈阳工业大学 | Energy-saving and consumption-reducing canned motor pump motor |
| KR102488143B1 (en) * | 2015-05-27 | 2023-01-16 | 바스프 에스이 | Composition for producing a magnetic core and method for producing the composition |
| CN204663906U (en) * | 2015-05-28 | 2015-09-23 | 昆山江津长抗干磨磁力泵有限公司 | A kind of magnetic drive pump of architecture advances |
| CN105741997B (en) * | 2016-02-23 | 2018-01-02 | 深圳市南北磁材料科技有限公司 | A kind of injection-molded plastic and soft magnetism powder composite material and preparation method thereof |
| CN108774379A (en) * | 2018-04-27 | 2018-11-09 | 太仓市磁力驱动泵有限公司 | A kind of magnetic drive pump metal composite separation sleeve and preparation method thereof based on the enhancing of carbon fiber filament modified polyetheretherketonefiber |
| CN108799137A (en) * | 2018-06-07 | 2018-11-13 | 马鞍山松鹤信息科技有限公司 | A kind of magnetic drive pump |
| CN109236674A (en) * | 2018-06-15 | 2019-01-18 | 浙江腾宇泵阀设备有限公司 | A kind of resistance to dry operating magnetic drive pump of stainless steel |
| CN109256251A (en) * | 2018-09-19 | 2019-01-22 | 鲁东大学 | The method that surface oxidation technique prepares high magnetic conductance low-power consumption metal soft magnetic composite material |
| CN110994844B (en) * | 2019-12-30 | 2022-01-18 | 沈阳工业大学 | High-speed permanent magnet motor rotor with shielding layer |
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Effective date of registration: 20240422 Address after: No. 10-1, 10-2, 10-3, 10-4 Huiquan East Road, Hunnan District, Shenyang City, Liaoning Province, 110000 Patentee after: SHENYANG ZHONGBEI VACUUM TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 110870, No. 111, Shen Xi Road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee before: SHENYANG University OF TECHNOLOGY Country or region before: China |