CN102957300B - Electromagnetic pump - Google Patents
Electromagnetic pump Download PDFInfo
- Publication number
- CN102957300B CN102957300B CN201110247868.8A CN201110247868A CN102957300B CN 102957300 B CN102957300 B CN 102957300B CN 201110247868 A CN201110247868 A CN 201110247868A CN 102957300 B CN102957300 B CN 102957300B
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- Prior art keywords
- electrode pair
- pump housing
- electric capacity
- permanent magnet
- capacitance module
- 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.)
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- 239000012530 fluid Substances 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910003251 Na K Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of electromagnetic pump, relate to fluid pump technical field, comprise: the pump housing (1), runner (2), electrode pair (3), permanent magnet are to (4) and capacitance module (5), wherein, the described pump housing (1), inner hollow, forward and backward surface has groove, and upper and lower surface is connected with runner (2) respectively; Described electrode pair (3), embeds the left and right surfaces of the described pump housing (1) respectively; Described permanent magnet, to (4), is positioned at the groove on described forward and backward surface, and permanent magnet to the N pole of two of (4) permanent magnets and S extremely staggered relatively; Described capacitance module (5), is connected with described electrode pair (3), for providing power supply by DC power supply charging.The present invention its have that structure is simple, energy consumption and cost is low, pumpability strong, efficiency advantages of higher.
Description
Technical field
The present invention relates to fluid pump technical field, particularly relate to a kind of electromagnetic pump being applicable to drive various conductor fluid.
Background technology
Electromagnetic pump a kind ofly utilizes the energising fluid in magnetic field to produce barometric gradient under electromagnetic force thus promote the device of flow motion to certain orientation.
Electromagnetic pump does not have mechanical movement part, and structure is simple, good airproof performance, and running is reliable, does not need shaft seal.Current electromagnetic pump obtains application in multiple industry field: as the heavy metal for carrying some poisonous in chemical industry, printing industry, as mercury, lead etc.; For carrying the liquid metal (sodium or potassium, Na-K alloy) as thermophore in nuclear power unit; The low melting point liquid metal (gallium, gallium-indium alloy or gallium-indium-tin alloy etc.) of pumping as heat eliminating medium is used in chip heat pipe reason field; For the non-ferrous metal of transporting molten in Foundry Production; Also can be used for driving electrolyte solution or conducting solution in MEMS (micro electro mechanical system) (MEMS).
Electromagnetic pump principle is: be the conductor fluid in the magnetic field of B in intensity, pass through electric current I, as magnetic direction is vertical with the sense of current, then conductor fluid will be subject to the thrust F in magnetic field, the direction of thrust is determined by left hand rule, the size of thrust is F=I × B × L, and wherein L is the conductor fluid length under electric field action.
As can be seen from above-mentioned principle, the pumpability improving electromagnetic pump generally has two approach, on the one hand by improving magnetic field intensity, on the other hand also by increasing electric current.For making electromagnetism pump structure simple, magnetic field, in general is obtained by permanent magnet, and permanent magnet magnetic field intensity is generally less than 2 teslas, and room for promotion is very limited, and cost is very high.So, increase the optimal path that electric current becomes a lifting electromagnetic pump pumpability.But big current especially low-voltage, high-current generally needs comparatively complicated change-over circuit, and the electric energy be lost on change-over circuit is also comparatively large, therefore energy consumption and cost higher, this also limits the application of electromagnetic pump in more areas to a certain extent simultaneously.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: provide a kind of electromagnetic pump, and it has, and structure is simple, energy consumption and cost is low, pumpability strong, efficiency advantages of higher.
(2) technical scheme
For solving the problem, the invention provides a kind of electromagnetic pump, comprising: the pump housing, runner, electrode pair, permanent magnet to and capacitance module, wherein,
The described pump housing, inner hollow, forward and backward surface has groove, and upper and lower surface is connected with runner respectively;
Described electrode pair, embeds the left and right surfaces of the described pump housing respectively;
Described permanent magnet pair, is positioned at the groove on described forward and backward surface, and the N pole of right two permanent magnets of permanent magnet and S extremely staggered relatively; Namely in the N pole of a permanent magnet and the extremely corresponding groove being placed in the forward and backward surface of the pump housing of the S of another permanent magnet.The setting direction that the setting direction of electrode pair is right with permanent magnet is vertical.
Described capacitance module, be connected with described electrode pair, be single electric capacity for being provided capacitance module described in power supply by DC power supply charging or carry out by multiple electric capacity the capacitance group that series/parallel forms, or single super capacitor or multiple super capacitor carry out the capacitance group of series/parallel formation;
When described capacitance module comprises two electric capacity, at any time, electric capacity described in one of them is connected with described electrode pair and discharges, and electric capacity described in another is connected with described DC power supply and charges; After the capacitor discharge be connected with described electrode pair terminates, commutation circuit, the electric capacity carrying out charging before making it is the electric discharge of described electrode pair, and the electric capacity before discharged charges.
Preferably, described pump housing outer race has magnetic guiding loop, for making magnetic field close, prevents leakage field.
Preferably, described electrode pair is partially submerged in the left and right surfaces of the described pump housing, and its end stretches into runner acting section 1 ~ 3 millimeter respectively, for ensure to be formed with fluid be electrically connected while reduce on flow resistance impact as far as possible.Described electrode pair is made by low resistivity material.Use low resistivity material to make electrode pair, can reduce the Joule heat in electrode when electromagnetic pump works, have corrosive fluid for some, electrode should select anticorrosion electric conducting material or outer surface to plate anticorrosion electric conducting material.
Preferably, the described pump housing is made by nonmetal or metal material, and processing mode comprises casting or machine work.
Preferably, the part of described runner in the described pump housing is flat cuboid, and the part of described runner outside the described pump housing is connected with external fluid pipeline by flange, screw thread or welding manner.The profile of runner in pump housing outside and size are determined according to specific needs.
Preferably, described permanent magnet is to being flaky permanent magnet, and its magnetic field intensity scope is 0.01 ~ 5 tesla.
Preferably, described magnetic guiding loop is made by high permeability material, its rectangular in cross-section, circle or oval, and thickness is 1 ~ 20 millimeter.
Preferably, between described electrode pair and capacitance module, be provided with current-limiting resistance, for the flow velocity of limit fluid.
Preferably, be provided with boost conversion chip or buck/boost conversion chip between described electrode pair and capacitance module, provide stable actuating force for convection cell.
(3) beneficial effect
The present invention adopts capacitance module to power, there is the significant advantages such as structure is simple, internal resistance is ultralow, power density super large, applicable heavy-current discharge, long service life of the present invention, discharge and recharge number of times is generally greater than 500,000 times, the discharge and recharge time is short, requires simple, memory-less effect to charging circuit, and suitable environment temperature range is wide, all can normally work within the scope of-40 DEG C ~+70 DEG C; Capacitor of the present invention can transmitting energy pulse and without any adverse effect repeatedly, widely applicable; The present invention does not need complicated change-over circuit, and cost is low, and effectively can avoid the electric energy that is lost on change-over circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of electromagnetic pump described in embodiment of the present invention;
Fig. 2 for described in embodiment of the present invention with the structural representation of the electromagnetic pump of magnetic guiding loop;
Fig. 3 is the circuit connection diagram of electromagnetic pump when capacitance module described in embodiment of the present invention selects single electric capacity;
Fig. 4 is the circuit connection diagram of electromagnetic pump when capacitance module described in embodiment of the present invention selects 2 electric capacity.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, electromagnetic pump of the present invention, comprising: the pump housing 1, runner 2, electrode pair 3, permanent magnet to 4 and capacitance module 5, wherein,
The described pump housing 2, inner hollow, forward and backward surface has groove, and upper and lower surface is connected with runner respectively;
Described electrode pair 3, embeds the left and right surfaces of the described pump housing 1 respectively;
Described permanent magnet, to 4, is positioned at the groove on described forward and backward surface, and permanent magnet to 4 the N pole of two permanent magnets and S extremely staggered relatively; Namely in the N pole of a permanent magnet and the extremely corresponding groove being placed in the forward and backward surface of the pump housing of the S of another permanent magnet.The setting direction of electrode pair 3 is vertical to the setting direction of 4 with permanent magnet.
Described capacitance module 5, is connected with described electrode pair 3, for providing power supply by DC power supply charging.
Preferably, the described pump housing 1 outer race has magnetic guiding loop 6, for making magnetic field close, prevents leakage field.As shown in Figure 2.
Preferably, described electrode pair 3 is partially submerged in the left and right surfaces of the described pump housing 1, and its end stretches into runner 2 acting section 1 ~ 3 millimeter respectively.For ensure to be formed with fluid be electrically connected while reduce on flow resistance impact as far as possible.Described electrode pair 3 is made by low resistivity material, low resistivity material is used to make electrode pair, can reduce the Joule heat in electrode when electromagnetic pump works, have corrosive fluid for some, electrode should select anticorrosion electric conducting material or outer surface to plate anticorrosion electric conducting material.Electrode pair 3 removes and fluid is formed outside the part that is electrically connected, with the complete electric insulation of other conductive structure of electromagnetic pump.
Preferably, the described pump housing 1 is made by nonmetal or metal material, and processing mode comprises casting or machine work.Such as: the pump housing 1 is by plastic production, and processing mode adopts casting.
Preferably, the part of described runner 2 in the described pump housing 1 is flat cuboid, and to make the magnetic gap of the two pieces of permanent magnets in front and back, little, field intensity is as far as possible large as far as possible.Runner 2 is imported and exported and is connected with two external fluid pipelines respectively, and the part of runner 2 outside the described pump housing 1 is connected with external fluid pipeline by flange, screw thread or welding manner.The profile of runner 2 in pump housing outside and size are determined according to specific needs.
Preferably, described permanent magnet is flaky permanent magnet to 4, and its magnetic field intensity scope is 0.01 ~ 5 tesla.
Preferably, described capacitance module 5 is single electric capacity or carries out by multiple electric capacity the capacitance group that series/parallel forms, or single super capacitor or multiple super capacitor carry out the capacitance group of series/parallel formation.The voltage parameter range of capacitance module 5 is 0.1V ~ 36V, and capacitance parameter area is 0.01F ~ 50000F.
Such as: select single electric capacity, the electrical connection between capacitance module 5, electrode pair 3 and external dc power as shown in Figure 3.Because electric capacity has ultralow internal resistance, when adopting this connected mode, external dc power is that capacitance module 5 charges, and capacitance module 5 pairs of electrode pairs 3 discharge, thus form electric current in conductor fluid, and then conductor fluid is driven to flow in runner under the acting in conjunction in electric field and magnetic field.
Such as: capacitance module 5 is made up of 2 electric capacity.Electrical connection between capacitance module 5, electrode pair 3 and external dc power as shown in Figure 4.As can be seen from the figure, under any circumstance, only have an electric capacity to be directly connected with electrode pair 3, and another electric capacity is connected with external dc power; That is, when an electric capacity is when discharging to electrode pair 3, another electric capacity is in charged state; After a capacitor discharge terminates, by the switching of contactor, this electric capacity is directly connected charging with external dc power, and another electric capacity discharges to electrode pair 3.Electric capacity can be avoided so simultaneously to be in charging and discharging state, effectively to extend the useful life of electric capacity, and large and stable actuating force can also be provided by convection cell.
Preferably, between described electrode pair and capacitance module, be provided with current-limiting resistance, for the flow velocity of limit fluid.
Preferably, be provided with boost conversion chip or buck/boost conversion chip between described electrode pair and capacitance module, provide stable actuating force for convection cell.
Electric capacity is in discharge process, and voltage can decline thereupon, and the effect of boost conversion chip is exactly ensure that capacitance component of the present invention can provide stable electric power to export.When the voltage of power supply module drops to after lower than a certain set point, its magnitude of voltage will be risen to set point by boost conversion chip, thus provides stable actuating force for fluid.
Preferably, described magnetic guiding loop 6 is made by high permeability material, such as electrical pure iron, mild steel, silicon steel etc., and magnetic guiding loop is an entirety, and its rectangular in cross-section, circle or oval, thickness is 1 ~ 20 millimeter.
Operation principle of the present invention:
It is the runner of conductor fluid between the magnetic gap of two permanent magnet N poles and S pole, after capacitance module 5 connected by electrode pair 3, by generation current in conductor fluid between electrode pair 3, this sense of current is just in time vertical to 4 magnetic directions produced with permanent magnet, thus producing the electromagnetic force promoting conductor fluid, its direction is determined by left hand rule.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (7)
1. an electromagnetic pump, is characterized in that, comprising: the pump housing (1), runner (2), electrode pair (3), permanent magnet to (4) and capacitance module (5), wherein,
The described pump housing (1), inner hollow, forward and backward surface has groove, and upper and lower surface is connected with runner (2) respectively;
Described electrode pair (3), embeds the left and right surfaces of the described pump housing (1) respectively;
Described permanent magnet, to (4), is positioned at the groove on described forward and backward surface, and permanent magnet to the N pole of two of (4) permanent magnets and S extremely staggered relatively;
Described capacitance module (5), is connected with described electrode pair (3), for providing power supply by DC power supply charging; Described capacitance module (5) carries out for single electric capacity or by multiple electric capacity the capacitance group that connection in series-parallel forms;
When described capacitance module (5) comprises two electric capacity, at any time, electric capacity described in one of them is connected with described electrode pair (3) and discharges, and electric capacity described in another is connected with described DC power supply and charges; After the capacitor discharge be connected with described electrode pair (3) terminates, commutation circuit, the electric capacity carrying out charging before making it is described electrode pair (3) electric discharge, and the electric capacity before discharged charges;
Permanent magnet is flaky permanent magnet to (4), and its magnetic field intensity scope is 0.01 ~ 5 tesla;
Current-limiting resistance is provided with, for the flow velocity of limit fluid between electrode pair (3) and capacitance module (5);
Be provided with boost conversion chip or buck/boost conversion chip between electrode pair (3) and capacitance module (5), provide stable actuating force for convection cell.
2. electromagnetic pump as claimed in claim 1, it is characterized in that, the described pump housing (1) outer race has magnetic guiding loop (6), for making magnetic field close, prevents leakage field.
3. electromagnetic pump as claimed in claim 1, it is characterized in that, described electrode pair (3) is partially submerged in the left and right surfaces of the described pump housing (1), and its end stretches into runner acting section 1 ~ 3 millimeter respectively, and described electrode pair (3) is made by low resistivity material.
4. electromagnetic pump as claimed in claim 1, is characterized in that, the described pump housing (1) is made by nonmetal or metal material, and processing mode comprises casting or machine work.
5. electromagnetic pump as claimed in claim 1, it is characterized in that, the part of described runner (2) in the described pump housing (1) is flat cuboid, and described runner (2) is connected with external fluid pipeline by flange, screw thread or welding manner in the described pump housing (1) part outward.
6. electromagnetic pump as claimed in claim 2, it is characterized in that, described magnetic guiding loop (6) is made by high permeability material, its rectangular in cross-section, circle or oval, and thickness is 1 ~ 20 millimeter.
7. electromagnetic pump as claimed in claim 1, is characterized in that described capacitance module (5) carries out the capacitance group of connection in series-parallel formation for single super capacitor or multiple super capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247868.8A CN102957300B (en) | 2011-08-24 | 2011-08-24 | Electromagnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110247868.8A CN102957300B (en) | 2011-08-24 | 2011-08-24 | Electromagnetic pump |
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| Publication Number | Publication Date |
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| CN102957300A CN102957300A (en) | 2013-03-06 |
| CN102957300B true CN102957300B (en) | 2015-08-05 |
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| CN201110247868.8A Active CN102957300B (en) | 2011-08-24 | 2011-08-24 | Electromagnetic pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104108248A (en) * | 2013-04-19 | 2014-10-22 | 中国科学院理化技术研究所 | Liquid metal ink-jet printing equipment and printing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2907026Y (en) * | 2006-05-25 | 2007-05-30 | 郑乐 | DC power transmission circuit |
| CN101741218A (en) * | 2008-11-20 | 2010-06-16 | 中国科学院理化技术研究所 | Electromagnetic pump for driving conductive fluid and manufacturing method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0835795A (en) * | 1994-07-22 | 1996-02-06 | Japan Steel Works Ltd:The | Electromagnetic rail gun with external coil |
| CN101764498B (en) * | 2008-12-25 | 2012-02-15 | 中国科学院理化技术研究所 | Electromagnetic pump with built-in slide block and for driving liquid metals |
| CN101582627A (en) * | 2009-06-29 | 2009-11-18 | 中国科学院等离子体物理研究所 | Liquid metal electromagnetic pump |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2907026Y (en) * | 2006-05-25 | 2007-05-30 | 郑乐 | DC power transmission circuit |
| CN101741218A (en) * | 2008-11-20 | 2010-06-16 | 中国科学院理化技术研究所 | Electromagnetic pump for driving conductive fluid and manufacturing method thereof |
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Application publication date: 20130306 Assignee: BEIJING DREAM INK TECHNOLOGIES Co.,Ltd. Assignor: TECHNICAL INSTITUTE OF PHYSICS AND CHEMISTRY OF THE CHINESE ACADEMY OF SCIENCES Contract record no.: 2016990000417 Denomination of invention: Self-excited electromagnetic pump Granted publication date: 20150805 License type: Exclusive License Record date: 20161008 |
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Effective date of registration: 20240218 Address after: 100081 room 9009, 9 / F, 65 North Fourth Ring Road West, Haidian District, Beijing Patentee after: BEIJING DREAM INK TECHNOLOGIES Co.,Ltd. Country or region after: China Address before: No. 29 East Zhongguancun Road, Haidian District, Beijing 100190 Patentee before: TECHNICAL INSTITUTE OF PHYSICS AND CHEMISTRY OF THE CHINESE ACADEMY OF SCIENCES Country or region before: China |
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