CN102403925A - Thermal-magnetic power generation system driven by reciprocating motion piston pump - Google Patents
Thermal-magnetic power generation system driven by reciprocating motion piston pump Download PDFInfo
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- CN102403925A CN102403925A CN2010102877787A CN201010287778A CN102403925A CN 102403925 A CN102403925 A CN 102403925A CN 2010102877787 A CN2010102877787 A CN 2010102877787A CN 201010287778 A CN201010287778 A CN 201010287778A CN 102403925 A CN102403925 A CN 102403925A
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Abstract
The invention relates to a thermal-magnetic power generation system driven by a reciprocating motion piston pump. The thermal-magnetic power generation system comprises a piston used for driving fluid to do reciprocating motion, and the piston is driven by a motor. A thermal-magnetic power generator comprises two room temperature heat exchangers, a high temperature heat exchanger positioned between the two room temperature heat exchangers, at least one magnetic conduction segment installed among the room temperature heat exchangers and the high temperature heat exchanger, a pair of oppositely placed block-shaped magnetic conductors and a permanent magnet clamped at one end between the pair of the block-shaped magnetic conductors. The magnetic conduction segment is clamped at the other end between the pair of the block-shaped magnetic conductors, coils are sleeved on the magnetic conductors, and each magnetic conduction segment forms a magnetic loop with the pair of the magnetic conductors. When the fluid flowing in an alternating mode in the system moves back and forth among the room temperature heat exchangers and the high temperature heat exchanger, magnetic conduction material sheets of the magnetic conduction segment are heated or cooled. The magnetic conductivity is changed near the Curie temperature so that the magnetic resistance and the magnetic flux of the magnetic loop are changed, induced electromotive force is generated on the coils, and then electric energy is generated. The thermal-magnetic power generation system driven by the reciprocating motion piston pump has the advantages of high power density, and the like.
Description
Technical field
The present invention relates to a kind of pyromagnetic TRT, the pyromagnetic electricity generation system that particularly a kind of reciprocating piston pump drives.
Background technology
Pyromagnetic generator is to utilize near high-permeability material magnetic permeability generation great variety Curie temperature, thereby causes in the magnetic loop magnetic flux change through coil, and then produces the device of electric energy.But pyromagnetic electricity generation system need replace the heating and cooling magnetic material, and how to realize that the Fast Heating of magnetic material and cooling are one of difficult points in this technology.Usually, if pyromagnetic generating need produce the alternative frequency generating of 50Hz, the frequency of the heating and cooling that then need realize also will reach 50Hz.
One Chinese patent application 200880010226.2 discloses a kind of Thermomagnetic generator device, and is as shown in Figure 6.It comprises permeability magnetic material 12, common magnetic conductor 7,8, permanent magnet 6, and permeability magnetic material 12 constitutes magnetic loop with permanent magnet 6, magnetic conductor 7,8.Also comprise the coil 9 that is wrapped in common magnetic conductor 8, in order to the equipment 13 that permeability magnetic material 12 carried out heating and cooling, in order to carry out the unit 14 of system's control.When 13 pairs of permeability magnetic materials 12 of heating and cooling equipment heat and temperature when surpassing the Curie temperature of permeability magnetic material 12, permeability magnetic material 12 permeabilities descend rapidly, cause that thus whole magnetic loop magnetic resistance changes, magnetic energy also changes.Owing to produce induced electromotive force in the electromagnetic induction coil 9, thereby can export electric work.This application is owing to can't solve the Fast Heating and the cooling problem of conductivity material 12, and the operating frequency of this Thermomagnetic generator device is merely about 1Hz, and power density is lower.When conducting heat, need realize the alternate motion of heat exchanging fluid simultaneously by external force, the mechanical structure more complicated, costs such as maintenance are higher.
Summary of the invention
The objective of the invention is to be difficult to realize quick heat exchange, thereby cause problems such as power density is low, power expansion difficulty to having now in the Thermomagnetic generator device, and the pyromagnetic electricity generation system that provides a kind of reciprocating piston pump to drive; This pyromagnetic electricity generation system can realize the upper frequency heating and cooling; Have advantages such as power density height, power expansion are prone to; Overcome the problem that exists in traditional pyromagnetic generation technology, be with a wide range of applications aspect utilizing at solar energy, biomass heat energy and industrial waste heat etc.
To achieve these goals, technical scheme of the present invention is following:
The pyromagnetic electricity generation system that reciprocating piston pump provided by the invention drives, it comprises reciprocating piston pump and pyromagnetic generator; Said piston pump is used to produce the alternation flowing fluid by motor-driven; Said pyromagnetic generator utilizes the mobile thermal power transfer with the pyromagnetic generator high-temperature heat-exchanging of alternation streaming flow to become electric energy;
Described pyromagnetic generator comprises:
Two room temperature heat exchangers;
High-temperature heat-exchanging between these two room temperature heat exchangers;
Be installed at least one permeable segments between said room temperature heat exchanger and the said high-temperature heat-exchanging; Said permeable segments is formed by stacking multi-disc permeability magnetic material thin slice at interval, and the side on the permeability magnetic material sheet thickness direction contacts with chamber warmer and high-temperature heat-exchanging respectively, and the Curie temperature of said permeability magnetic material thin slice is less than the temperature of high-temperature heat exchanger;
The a pair of block magnetic conductor of placing relatively;
Be clipped on said this permanent magnet to an end between the block magnetic conductor;
Said permeable segments be clipped on said this to the other end between the block magnetic conductor;
Be with coil on the said magnetic conductor;
Each described permeable segments and permanent magnet and said this constitute a magnetic loop and form a pyromagnetic generator unit magnetic conductor;
When the alternation flowing fluid moves back and forth between said room temperature heat exchanger and said high-temperature heat-exchanging in the pyromagnetic electricity generation system that said reciprocating piston pump drives, the permeability magnetic material thin slice of permeable segments will be heated or cooled; When permeability magnetic material temperature magnetic permeability in 30 ℃ of scopes on Curie temperature to Curie temperature changes, thereby make the magnetic resistance of magnetic loop and magnetic flux change, produce induced electromotive force on the said coil, and then pyromagnetic generator unit produces and the output electric energy.
Said permeable segments is divided into multistage vertically, and each section permeable segments Curie temperature is different, and each section permeable segments Curie temperature from high-temperature heat-exchanging to the room temperature high-temperature heat-exchanging is ladder and descends, and forms a plurality of pyromagnetic generator units; The coil serial or parallel connection of a plurality of pyromagnetic generator units is connected the output electric work.
The magnetic field that permanent magnet in the described pyromagnetic generator produces uses the galvanic coil of connection to replace.
The material of said permeability magnetic material thin slice is ferrite, iron, iron-based alloy, permalloy or amorphous state permeability magnetic material; Its thickness is less than 2 times solid thermal penetration depth; This degree of depth for
wherein κ be the thermal diffusion coefficient of permeability magnetic material, ω is the fluid motion angular frequency.
Described piston pump using gases medium, pyromagnetic generator uses liquid medium.
Described reciprocating piston pump and said pyromagnetic generator all use liquid medium.
Said liquid medium is water, conduction oil or liquid metal.
Described reciprocating piston pump symmetric arrangement is to reduce complete machine oscillation.
The advantage of the pyromagnetic electricity generation system that reciprocating piston pump of the present invention drives is following:
The pyromagnetic electricity generation system that this reciprocating piston pump drives; Can realize the high-frequency heating and cooling; Has the high advantage of power density; Overcome the problem that exists in traditional pyromagnetic generation technology, be with a wide range of applications aspect utilizing at solar energy, biomass heat energy and industrial waste heat etc.
Description of drawings
Fig. 1-1 is the structural representation of the pyromagnetic electricity generation system (embodiment 1) of reciprocating piston driving of the present invention.
Fig. 1-2 is a pyromagnetic generator cell mesh stereogram among Fig. 1.
Fig. 2 is the structural representation of the pyromagnetic electricity generation system (embodiment 2) of reciprocating piston driving of the present invention.
Fig. 3 is the structural representation of the pyromagnetic electricity generation system (embodiment 3) of reciprocating piston driving of the present invention.
Fig. 4 is the structural representation of the pyromagnetic electricity generation system (embodiment 4) of reciprocating piston driving of the present invention.
Fig. 5 is the structural representation of the pyromagnetic electricity generation system (embodiment 5) of reciprocating piston driving of the present invention.
Fig. 6 is the structural representation of existing Thermomagnetic generator device.
Embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is done further detailed description.
The invention provides the pyromagnetic electricity generation system that a kind of reciprocating piston pump drives, comprise reciprocating piston pump and pyromagnetic generator; Piston pump flows in order to the alternation that produces fluid; And the alternation that pyromagnetic generator utilizes piston pump the to produce reciprocating motion in the runner that the multi-disc permeability magnetic material thin slice of the certain Curie temperature between high cryogenic heat exchanger on the throne forms of flowing; These permeability magnetic material thin slices of heating and cooling; Make it near Curie temperature, to produce the significantly variation of magnetic permeability, thereby in magnetic loop, produce the variation of magnetic resistance and magnetic flux, respective coil will produce induced electromotive force; Realize thermoelectric conversion, and then the output electric energy.
Embodiment 1
Fig. 1-1 is the structural representation of the pyromagnetic electricity generation system (embodiment 1) of reciprocating piston driving of the present invention.Fig. 1-2 is the stereogram of pyromagnetic generator unit among Fig. 1-1; Can know by figure, the pyromagnetic electricity generation system that the reciprocating piston pump of present embodiment 1 drives, it comprises:
One circular passage 5;
Be positioned at the reciprocating piston 1 of the driven by motor on the longitudinal section of said circular passage 5; And be positioned at the pyromagnetic generator within the said circular passage 5;
Said pyromagnetic generator 5 is from top to bottom placed in the circular passage successively: the first room temperature heat exchanger 2, first permeable segments 3, high-temperature heat-exchanging 4, second permeable segments 31 and the second room temperature heat exchanger 21; Said first permeable segments 3 is between the first room temperature heat exchanger 2 and high-temperature heat-exchanging 4; Second permeable segments 31 is between the high-temperature heat-exchanging 4 and the second room temperature heat exchanger 21; Said first permeable segments 3 and second permeable segments 31 are formed by stacking multi-disc permeability magnetic material thin slice respectively at interval, and the Curie temperature of permeability magnetic material thin slice is less than the temperature of high-temperature heat exchanger 4; Permeability magnetic material is ferrite, iron, iron-based alloy, permalloy or amorphous state permeability magnetic material.The thickness of permeability magnetic material thin slice should less than 2 times solid thermal penetration depth
wherein κ be the thermal diffusion coefficient of permeability magnetic material; ω is the fluid motion angular frequency, can be to realize the quick heat exchange between fluid and solid;
Said pyromagnetic generator comprises a pair of block magnetic conductor (the first block magnetic conductor 7 and the second block magnetic conductor 8) of relative placement; Be clipped on said this permanent magnet 6 to an end between the block magnetic conductor;
Said permeable segments 3 be clipped on said this to the other end between the block magnetic conductor;
Be with coil 9 (present embodiment is with coil 9 on the second block magnetic conductor 8) on the said magnetic conductor (the first block magnetic conductor 7 is or/and the second block magnetic conductor 8);
Each described permeable segments and permanent magnet and said this constitute a magnetic loop and form a pyromagnetic generator unit magnetic conductor;
Described piston pump 1 is realized reciprocating motion under the drive of motor, the liquid working substance that drives in the pyromagnetic electricity generation system moves back and forth; Here the motor that drives reciprocating motion of the pistons can be also electric rotating machines of linear electric motors.First permeable segments 3, second permeable segments 31 are formed by stacking multi-disc high permeability material thin slice respectively at interval, and the Curie temperature of said permeability magnetic material thin slice is less than the temperature of high-temperature heat exchanger 4.First permeable segments 3 closely connects and composes magnetic loop with its corresponding permanent magnet 6 and first common magnetic conductor 7, second common magnetic conductor 8 in outside, on the second common magnetic conductor 8, is wound with coil 9, constitutes a pyromagnetic generator unit thus.Similar second permeable segments 31 also closely connects and composes magnetic loop with the permanent magnet and the common magnetic conductor in its outside, and on common magnetic conductor, also is wound with coil, constitutes another pyromagnetic generator unit.Under the driving of piston 1, the fluid reciprocating motion of pyromagnetic generator position.In the one-period, when fluid from the top down the time, the left side fluid is earlier through the first room temperature heat exchanger 2; Fluid be cooled to earlier room temperature again with 3 heat exchange of first permeable segments; First permeable segments, 3 parts are cooled, and temperature drops to below the Curie temperature, and this moment, first permeable segments 3 was in the bigger state of magnetic permeability; Meanwhile, the right side fluid is earlier through high-temperature heat-exchanging 4, fluid be heated to earlier high temperature again with 31 heat exchange of second permeable segments, second permeable segments 31 is heated, temperature rise to Curie temperature above after, second permeable segments 31 is in the less state of magnetic permeability.When fluid from bottom to top the time, process is just in time opposite.So; Magnetic permeability owing to first permeable segments 3 in one-period takes place significantly to change; Cause that magnetic resistance in the magnetic loop changes, magnetic flux changes,, realize the conversion of heat energy to electric energy according to producing induced electromotive force output electric work on the electromagnetic induction principle coil 9.Accordingly, because the magnetic permeability of second permeable segments 31 takes place significantly to change,, realize the conversion of heat energy to electric energy according to also producing induced electromotive force output electric work on its coil of electromagnetic induction principle.
Pyromagnetic generator in the present embodiment both one of ordinary skill in the art will readily recognize that can produce magnetic field with permanent magnet also can be communicated with galvanic mode with coil and produce magnetic field.
Pyromagnetic generator in the present embodiment one of ordinary skill in the art will readily recognize that according to the power needs, can on loop, arrange a plurality of pyromagnetic generators.
Fig. 2 comprises pistons reciprocating 1 and pyromagnetic generator for the structural representation of the pyromagnetic electricity generation system embodiment 2 of reciprocating piston driving of the present invention.In circular passage 5, be furnished with piston 1, the first room temperature heat exchanger 2, first permeable segments 3, high-temperature heat-exchanging 4, the second room temperature heat exchanger 21 respectively.Piston 1 is realized reciprocating motion under the drive of motor, the working media in the drive system moves back and forth; Here the motor that drives reciprocating motion of the pistons can be also electric rotating machines of linear electric motors; First permeable segments 3 is formed by stacking at multi-disc permeability magnetic material thin slice interval on request, and the Curie temperature of permeability magnetic material thin slice should be less than the temperature of high-temperature heat exchanger 4.The permanent magnet 6 that first permeable segments 3 is corresponding with the outside and first magnetic conductor 7, second magnetic conductor 8 closely connect and compose magnetic loop, on second magnetic conductor 8, are wound with coil 9; Under the driving of piston 1, the fluid reciprocating motion of pyromagnetic generator position; In the one-period, when fluid from the top down the time, the left side fluid is earlier through the first room temperature heat exchanger 2; Fluid be cooled to earlier room temperature again with 3 heat exchange of first permeable segments; First permeable segments, 3 parts are cooled, and temperature drops to below the Curie temperature, and this moment, first permeable segments 3 was in the bigger state of magnetic permeability; When fluid from bottom to top the time, the right side fluid is earlier through high-temperature heat-exchanging 4, fluid be heated to earlier high temperature again with 3 heat exchange of first permeable segments, first permeable segments 3 is heated, temperature rise to Curie temperature above after, first permeable segments 3 is in the less state of magnetic permeability.So, in one-period,, cause magnetic resistance and magnetic flux in the magnetic loop to change because the magnetic permeability of first permeable segments 3 takes place significantly to change, according to electromagnetic induction principle, produce induced electromotive force output electric work on the coil 9, realize the conversion of heat energy to electric energy.
Fig. 3 is the structural representation of the pyromagnetic electricity generation system embodiment 3 of reciprocating-piston driving of the present invention.In the present embodiment, between the first room temperature heat exchanger 2 of pyromagnetic generator and high-temperature heat-exchanging 4, the second room temperature heat exchanger 21 and high-temperature heat-exchanging 4, place a plurality of permeable segments respectively; Each permeable segments Curie temperature is different, and the Curie temperature from high-temperature heat-exchanging to each permeable segments of room temperature heat exchanger is ladder from high to low and descends; Each pyromagnetic generator unit works alone, but coil drive electric loading on each unit also can connect the rear drive electric loading in order, can realize the conversion of heat energy to electric energy.Other are with embodiment 1.
Fig. 4 is the structural representation of the pyromagnetic electricity generation system embodiment 4 of reciprocating-piston driving of the present invention.For further realizing Fast Heating and the cooling to first permeable segments 3 and second permeable segments 31, internal system can be used liquid working substance 10.Liquid working substance 10 can be the liquid metal under conduction oil, water or the normal temperature etc.Other are with embodiment 1.
The pyromagnetic generator that piston 1 in the present embodiment drives one of ordinary skill in the art will readily recognize that also and can only use liquid working substance at the pyromagnetic generator place, and still is gas at the piston place.
Fig. 5 is the structural representation of the pyromagnetic electricity generation system embodiment 5 of reciprocating-piston driving of the present invention.For eliminating the vibration that single piston occurs, present embodiment adopted two pistons (first piston 1 and the 11 opposed motions of second piston, thus can be with the vibration elimination.Piston 1 lays respectively in the annular channel 5 and 51 separately with piston 11, and pyromagnetic generator is arranged in annular channel 5 and 51 shared one section runner.Other part is with embodiment 1.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (8)
1. the pyromagnetic electricity generation system that drives of a reciprocating piston pump, it comprises reciprocating piston pump and pyromagnetic generator; Said piston pump is used to produce the alternation flowing fluid by motor-driven; Said pyromagnetic generator utilizes the mobile thermal power transfer with the pyromagnetic generator high-temperature heat-exchanging of alternation streaming flow to become electric energy;
Described pyromagnetic generator comprises:
Two room temperature heat exchangers;
High-temperature heat-exchanging between these two room temperature heat exchangers;
Be installed at least one permeable segments between said room temperature heat exchanger and the said high-temperature heat-exchanging; Said permeable segments is formed by stacking multi-disc permeability magnetic material thin slice at interval, and the side on the permeability magnetic material sheet thickness direction contacts with chamber warmer and high-temperature heat-exchanging respectively, and the Curie temperature of said permeability magnetic material thin slice is less than the temperature of high-temperature heat exchanger;
The a pair of block magnetic conductor of placing relatively;
Be clipped on said this permanent magnet to an end between the block magnetic conductor;
Said permeable segments be clipped on said this to the other end between the block magnetic conductor;
Be with coil on the said magnetic conductor;
Each described permeable segments and permanent magnet and said this constitute a magnetic loop and form a pyromagnetic generator unit magnetic conductor;
When the alternation flowing fluid moves back and forth between said room temperature heat exchanger and said high-temperature heat-exchanging in the pyromagnetic electricity generation system that said reciprocating piston pump drives, the permeability magnetic material thin slice of permeable segments will be heated or cooled; When permeability magnetic material temperature magnetic permeability in 30 ℃ of scopes on Curie temperature to Curie temperature changes, thereby make the magnetic resistance of magnetic loop and magnetic flux change, produce induced electromotive force on the said coil, and then pyromagnetic generator unit produces and the output electric energy.
2. the pyromagnetic electricity generation system that drives by the described reciprocating piston pump of claim 1; It is characterized in that; Said permeable segments is divided into multistage vertically; Each section permeable segments Curie temperature is different, and each section permeable segments Curie temperature from high-temperature heat-exchanging to the room temperature high-temperature heat-exchanging is ladder and descends, and forms a plurality of pyromagnetic generator units; The coil serial or parallel connection of a plurality of pyromagnetic generator units is connected the output electric work.
3. the pyromagnetic electricity generation system that drives by the described reciprocating piston pump of claim 1 is characterized in that, the magnetic field that the permanent magnet in the described pyromagnetic generator produces uses the galvanic coil of connection to replace.
4. the pyromagnetic electricity generation system that drives by the described reciprocating piston pump of claim 1; It is characterized in that; The material of said permeability magnetic material thin slice is ferrite, iron, iron-based alloy, permalloy or amorphous state permeability magnetic material; Its thickness is less than 2 times solid thermal penetration depth; This degree of depth for
wherein κ be the thermal diffusion coefficient of permeability magnetic material, ω is the fluid motion angular frequency.
5. the pyromagnetic electricity generation system that drives by the described reciprocating piston pump of claim 1 is characterized in that, described piston pump using gases medium, and pyromagnetic generator uses liquid medium.
6. the pyromagnetic electricity generation system that drives by the described reciprocating piston pump of claim 1 is characterized in that described piston pump and said pyromagnetic generator all use liquid medium.
7. the pyromagnetic electricity generation system that drives by the described reciprocating piston pump of claim 6 is characterized in that said liquid medium is water, conduction oil or liquid metal.
8. the pyromagnetic electricity generation system of reciprocating piston actuated according to claim 1 is characterized in that, described reciprocating piston pump symmetric arrangement.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855906A (en) * | 2012-12-06 | 2014-06-11 | 台达电子工业股份有限公司 | Thermomagnetic electric generator |
| CN104124335A (en) * | 2013-04-27 | 2014-10-29 | 中国科学院理化技术研究所 | Thermomagnetic power generation system driven by linear compressor |
| CN104124334A (en) * | 2013-04-27 | 2014-10-29 | 中国科学院理化技术研究所 | Thermomagnetic power generation system driven by thermoacoustic engine |
| CN104247062A (en) * | 2011-12-21 | 2014-12-24 | Lg伊诺特有限公司 | Method of manufacturing thermoelectric device and thermoelectric cooling module and device using the same |
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| CN101647128A (en) * | 2007-03-28 | 2010-02-10 | Abb研究有限公司 | Thermomagnetic generator device and energy converting method |
| CN101702567A (en) * | 2009-12-03 | 2010-05-05 | 西安交通大学 | Method for using magnetic liquid to generate power |
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2010
- 2010-09-19 CN CN201010287778.7A patent/CN102403925B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101647128A (en) * | 2007-03-28 | 2010-02-10 | Abb研究有限公司 | Thermomagnetic generator device and energy converting method |
| CN101702567A (en) * | 2009-12-03 | 2010-05-05 | 西安交通大学 | Method for using magnetic liquid to generate power |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104247062A (en) * | 2011-12-21 | 2014-12-24 | Lg伊诺特有限公司 | Method of manufacturing thermoelectric device and thermoelectric cooling module and device using the same |
| CN104247062B (en) * | 2011-12-21 | 2018-01-19 | Lg伊诺特有限公司 | The manufacture method and the equipment using the thermoelectric cooling module of thermoelectric device and thermoelectric cooling module |
| CN103855906A (en) * | 2012-12-06 | 2014-06-11 | 台达电子工业股份有限公司 | Thermomagnetic electric generator |
| CN103855906B (en) * | 2012-12-06 | 2016-03-09 | 台达电子工业股份有限公司 | Pyromagnetic generator |
| CN104124335A (en) * | 2013-04-27 | 2014-10-29 | 中国科学院理化技术研究所 | Thermomagnetic power generation system driven by linear compressor |
| CN104124334A (en) * | 2013-04-27 | 2014-10-29 | 中国科学院理化技术研究所 | Thermomagnetic power generation system driven by thermoacoustic engine |
| CN104124335B (en) * | 2013-04-27 | 2016-12-28 | 中国科学院理化技术研究所 | The thermal-magnetic power generation system that a kind of linear compressor drives |
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