CN108199560A - A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid - Google Patents
A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid Download PDFInfo
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- CN108199560A CN108199560A CN201711328987.XA CN201711328987A CN108199560A CN 108199560 A CN108199560 A CN 108199560A CN 201711328987 A CN201711328987 A CN 201711328987A CN 108199560 A CN108199560 A CN 108199560A
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- 239000012774 insulation material Substances 0.000 claims abstract description 12
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/08—Magnetohydrodynamic [MHD] generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/08—Magnetohydrodynamic [MHD] generators
- H02K44/12—Constructional details of fluid channels
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Induction Heating (AREA)
Abstract
A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid, feature are mainly made of (7) induction coil (6), the ammeter of loop pulsating heat pipe (1), cooling duct (2), heating channel (3), adiabatic section thermal insulation material (4), NS poles magnet (5), tape insulation layer.The present invention utilizes the heated channel heating pulsating heat pipe of residual heat resources, vibrate the pulsating heat pipe internal working medium cycle for charging magnetic liquid, gas-liquid slug flow is formed in pipe, pulsating heat pipe adiabatic section externally-applied magnetic field magnetization liquid in pipe, the working medium circulation of vapour-liquid plug composition flows so that magnetic flux changes, electric current is generated in induction coil, realizes heat to electricity conversion.It is simple the present invention is characterized in apparatus structure, it is easy to process, manufacture it is at low cost, device can realize the hot turn of self-excitation change and magnetoelectricity conversion.The heat to electricity conversion for being very suitable for miniature, small-sized residual heat resources recycles, while pulsating heat pipe cooling section can be used for the recycling of heat.
Description
Technical field
The present invention is a kind of by the use of residual heat resources as heat source, and pulsating heat pipe uses pulsating heat pipe as heat transfer element
Self-excited motion characteristic and the thermoelectric conversion device that generates electricity of magnetoelectric induction characteristic, belong to waste heat recovery and power field.
Background technology
Pulsating heat pipe is a kind of efficient heat transfer element, puts forward this concept till now within 1842, efficient by it
Heat transfer efficiency, simple design feature and quickly grow, and the heat pipe of many different structure sizes occur.Pulsating heat pipe compared to
Conventional heat pipe, has the characteristics that be easy to microminaturization and can flexible arrangement.
Pulsating heat pipe is made of the capillary metal tube of bending sealing, filled with a certain amount of working medium in pipe, and is formed in pipe
The irregular liquid plug being spaced apart and vent plug, pulsating heat pipe do not need to capillary wick and mechanical movement means, in Cooling and Heat Source
Under the action of, the Oscillation Flows of internal working medium are formed, when power is higher, intermittence can be formed and circulated, complete self-excitation
Thermal energy is to dynamic transformation of energy.
Magnetic fluid is also known as magnetic liquid, ferrofluid or magnetic liquid, is a kind of novel functional material, it both has liquid
Mobility again have solid magnetic material magnetism.It is by the magnetic retention of a diameter of nanometer scale (less than 10 nanometers)
The colloidal liquid of a kind of stabilization that grain, base load liquid (being also media) and interfacial agent three mix.The fluid is quiet
Nonmagnetic attraction during state when externally-applied magnetic field acts on, just shows magnetism, and just because of this, it just has extensively in practice
Application, there is very high learning value in theory, at present, from existing document in data, there are no hot with pulsation
Manage the related application of this efficient small heat transfer component combination power generation.
In August, 1831, M. faraday have found electromagnetic induction phenomenon.Then, people start to turn using hydrodynamic(al) or Steam Actuation
Son drives the power generation of rotor cutting magnetic induction line.Eighties of last century carried out the power generation project of magnetic fluid, sent out direct current, but these
Method efficiency is low, of high cost, is not easy to implement.
Invention content
It is an object of the invention to improve deficiency of the prior art in microminiature power field, design one kind charges magnetic liquid
The pulsating heat pipe thermoelectric conversion device of body carries out heat to electricity conversion, and provide a kind of novel heat to electricity conversion side using residual heat resources
Method.
The object of the present invention is achieved like this：
A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid, it is characterised in that including loop pulsating heat pipe
(1), cooling duct (2), heating channel (3), adiabatic section thermal insulation material (4), NS poles magnet (5), tape insulation layer induction coil
(6), ammeter (7).Wherein, pulsating heat pipe (1) is disposed vertically, and pulsating heat pipe (1) is snakelike time made of capillary is bent
Lu Guan, is divided into the cooling section (10) of upper end, and the bringing-up section (12) of lower end and the adiabatic section (11) of centre, pulsating heat pipe (1) are interior
Portion vacuumizes and part is filled with working medium, the gas-liquid plug for being spaced apart its internal formation, and heat source driving internal working medium phase transformation generates
It vibrates and circulates, complete transmission of the heat from bringing-up section to cooling section, cooling section (10) is inserted into cooling duct (2), adds
Hot arc (12) is placed in heating channel (3), and adiabatic section (11) are placed between NS poles magnet (5), and NS poles magnet (5) tilts 20-
70 °, adiabatic section (11) any one straight pipe winds multiturn induction coil (6) outside, and coil both ends are connect with ammeter (7), shape
Into closed circuit；Adiabatic section thermal insulation material (4) is filled outside in adiabatic section (11).
The cooling duct (2) is that there are adiabatic guarantor in round or rectangular channel, outside made of organic glass or metallic plate
Adiabator, passage end are cooling medium inlets, and opposite side is to cool down media outlet, the top cooling section of pulsating heat pipe (1)
(10) it is inserted into cooling duct (2), and ensures insertion site joining place tight seal.
The heating channel (3) is that there are adiabatic guarantor in round or rectangular channel, outside made of organic glass or metallic plate
Adiabator, passage end are thermal medium inlets, and another side is thermal medium outlet, the lower part bringing-up section (12) of loop pulsating heat pipe (1)
It is inserted into heating channel (3), and ensures insertion site joining place tight seal.
The adiabatic section (11) of the pulsating heat pipe (1) is at the middle part of pulsating heat pipe, is made of several straight pipes.
NS poles magnet (5) is U magnet, and one end is N poles, and one end is S poles, and NS poles magnet is placed in pulsating heat pipe heating
The both sides of section (12) straight pipe, N poles and S extremely in arbitrarily one end is upper, for the other end under, NS poles magnet keeps 20-70 ° of inclination angle,
And spacing is kept between NS poles, form magnetic field in pulsating heat pipe adiabatic section (11) region.
The induction coil of any one straight pipe external application tape insulation layer of the pulsating heat pipe adiabatic section (11) is closely wound
Multiturn, winding height of the coil on straight pipe are moderate, it is impossible to and it is longer, but wind the number of turns and increase as possible, it can be by radial direction side
To the number of turns is increased, induction coil both ends are connected to an ammeter, sense electric current for measuring.
The adiabatic section thermal insulation material (4) is a kind of heat-preservation cotton of glass fibre material, for avoiding adiabatic section heat
It is lost in.
The ammeter (7) is a kind of sensitive ammeter, for detecting Weak current.
The magnetic fluid (9) is also known as magnetic liquid, ferrofluid or magnetic liquid, is a kind of novel functional material, it was both
Mobility with liquid and the magnetism with solid magnetic material.It is magnetic retention particle, the base by a diameter of nanometer scale
The colloidal liquid of a kind of stabilization that carrier fluid and interfacial agent three mix.
Compared with the prior art the present invention, has following distinguishing feature and good effect：First, pulsating heat pipe is utilized to change
Waste heat is recycled and is transmitted by hot device, compared with traditional technology, has compact-sized, flexible arrangement, light-weight, at low cost
It is honest and clean, the characteristics of efficiently being transmitted with good waste heat recovery and heat is simple to manufacture, installation is avoided, designs and produces and bring not
Just；Secondly, the oscillation that the meeting self-excitation under Cooling and Heat Source effect of pulsating heat pipe internal working medium forms gas-liquid slug flow is cleverly utilized
Flow behavior, the gas-liquid plug formed by magnetic fluid alternately pass through magnetic field, and the difference of the magnetic flux formed after magnetization makes sensing
The magnetic flux flowed through on coil inside cross section changes and generates electric current.This device and traditional waste heat power generation equipment phase
Than component is few, simple in structure, at low cost, and manufacture is easy.By the way that pulsating heat pipe heat exchanger is combined with magnetic induction power generation, profit
With pulsating heat pipe self-excited motion mechanism and the characteristic of the magnetisable power generation of magnetic liquid, residual heat resources are converted to electric energy, realize heat
The conversion of electricity.This device is highly suitable for small-sized and Miniature waste heat resource utilization.
Description of the drawings
Fig. 1 is the overall structure figure of the present invention.
Fig. 2 is the structure diagram of the pulsating heat pipe of the present invention.
Fig. 3 is the main schematic diagram in adiabatic section of the present invention.
Fig. 4 is the right view of the magnetoelectricity conversion portion of the present invention.
Each part numbers are as follows in figure：
1st, loop pulsating heat pipe；2nd, cooling duct；3rd, channel is heated；4th, adiabatic section thermal insulation material；5th, NS poles magnet；6th, band
The induction coil of insulating layer；7th, ammeter forms；8th, implementation of port；9th, magnetic liquid；10th, pulsating heat pipe cooling section；11st, pulsation heat
Pipe adiabatic section；12nd, pulsating heat pipe bringing-up section.
Specific embodiment
The present invention is described in further detail with case study on implementation below in conjunction with the accompanying drawings.
Such as Fig. 1 to 4, a kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid, feature mainly by：Circuit arteries and veins
Dynamic heat pipe (1), the sense of cooling duct (2), heating channel (3), adiabatic section thermal insulation material (4), NS poles magnet (5), tape insulation layer
Answer coil (6), ammeter (7).Wherein, pulsating heat pipe (1) is disposed vertically, and upper end is cooling section (10), is inserted into cooling duct (2)
In, lower end is bringing-up section (12).Wherein pulsating heat pipe (1) is main core heat transfer component, and cooling duct (2) are cooling ends
Part, heating channel (3) are heating elements, and electromagnetic induction coil (6), NS poles magnet (5), ammeter (7) is that main magnetoelectricity turns
Makeup is put.Cooling section (10) inclination of pulsating heat pipe is placed in cooling duct (2), and joining place is fully sealed；Bringing-up section (12) is put
In in heating channel (3), joining place is fully sealed.NS poles magnet (5) is placed in pulsating heat pipe adiabatic section (11) tube wall both sides, NS poles
Between keep certain distance, form magnetic field.NS poles magnet (5) keeps 20-70 ° of inclination angle.Pulsating heat pipe adiabatic section (11) is with continuously
Insulation induction coil (6) be closely wound a bit of, insulation induction coil (6) both ends connect a upper ammeter (7), for surveying
Measure size of current.
Loop pulsating heat pipe (1) is that more elbows are closed tube loop made of copper tube, is divided into bringing-up section (12), adiabatic
Section (11), condensation segment (10) three parts, after pulsating heat pipe (1) inter-process vacuumizes, be filled with 30% from implementation of port (8)~
After the working medium of certain liquid filled ratio between 70%, implementation of port is sealed.Pulsating heat pipe is under the collective effect of low-temperature receiver and heat source, work
Matter vaporizes, heats up and boosts in bringing-up section (12), in cooling section (10) condensation, cooling and decompression, and in gravity and various injustice
The effect of weighing apparatus potential difference is lower to be completed the oscillation of intraductal working medium and circulates.With the flowing of working medium, heat is from the heating of pulsating heat pipe
Section (12) flows to cooling section (10), completes the self-excited motion and heat transfer of working medium.
Cooling duct (2) is the heat preservation channel of outer surface thermal insulation, inside be inserted with the cooling section (10) of pulsating heat pipe, cooling
Medium from the one end of cooling duct (2) flow into, the other end outflow, cooling working medium by with pulsating heat pipe cooling section (10) outer tube wall
Heat convection and tube wall heat conduction, heat is made to pass to cooling medium from pulsating heat pipe condensation segment (10), make cooling medium heat
Heating.
Heating channel (3) is placed on the lower section of cooling duct (2), and outer surface is added with thermal insulating warm-keeping layer, and upper surface is inserted
Enter the bringing-up section (12) of pulsating heat pipe.Waste heat fluid from heating channel one end flow into, the other end outflow, by waste heat medium with
The convection current heat transfer of pulsating heat pipe outer tube wall and the heat conduction of tube wall, transfer heat to pulsating heat pipe internal working medium, make its phase transformation vapour
Change, and generate vibrating flowing；Complete transmission of the heat from heat source to pulsating heat pipe internal working medium.
Adiabatic section thermal insulation material (4) is for pulsating heat pipe adiabatic section straight pipe wall to be protected not radiate outwardly, ensures pulsation
The heat that heat pipe is absorbed from heat source all passes to colling end (10).
NS magnet (5) is placed on the both sides of pulsating heat pipe adiabatic section (11), generates magnetic field, makes the pulsating heat pipe across magnetic field
Internal magnetization liquid magnetized.
Induction coil (6) is wrapped on the outer wall of pulsating heat pipe adiabatic section, when distribution irregular in pipe and different in size
When gas-liquid plug-like magnetic fluid vibrates or is circulated through this section, because the concentration of the magnetic fluid in liquid plug is far above the magnetic in air column
Property fluid concentration, under the action of external magnetic field, the magnetic flux of formation is different, and the oscillation of gas-liquid plug and rate of circulating flow also become at random
Change, therefore when vapour-liquid plug alternately passes through the cross section that induction coil is wound, magnetic flux is alternately present increase and reduction so that sense
It answers and alternating current is generated inside wire loop.
Accurate miniature ammeter (7) measures the weak current that induction coil (6) circuit generates.
Magnetic fluid (9) is the heat-transfer working medium for pulsating heat pipe, is the necessary requirement of pulsating heat pipe stable operation, secondly
It is for being magnetized by external magnetic field, the internal working medium of adiabatic section straight pipe being made to generate certain magnetic flux.
The present invention operation principle be：The heated channel of heat source medium (3), is flowed through with certain flow rate and is arranged in channel
Pulsating heat pipe bringing-up section (12), heat pass to internal working medium, internal working medium is heated by convection current and the heat conduction of tube wall by tube wall
Gas-liquid plug-like flow pattern is mutually deformed into, while generates uneven potential difference so that pulsating heat pipe internal working medium self-excited motion, working medium is from arteries and veins
The bringing-up section (12) of dynamic heat pipe flows to cooling section (10) through adiabatic section (11).Low-temperature receiver medium is flowed through by the import of cooling duct (2)
Pulsating heat pipe cooling section (10) in cooling duct (2), by the convection current with pipe outer wall and the heat conduction of tube wall, cools
Intraductal working medium makes internal working medium condensation, decompression, cooling and heat release, while has promoted reflux and the Oscillation Flows of internal working medium, complete
Into the flowing heat transfer of pulsating heat pipe internal working medium.Simultaneously, in pulsating heat pipe adiabatic section (11), working medium is in the effect in magnetic field
Under, magnetic fluid (9) is magnetized, and inside forms certain magnetic flux, and because of magnetic fluid (9) in the gas-liquid plug inside pulsating heat pipe
Concentration is different, gas-liquid plug is unevenly distributed, when gas-liquid plug alternately passes through induction coil (6), magnetic flux changes, so as to generate
Electric current, electric current are monitored by accurate miniature ammeter (7).
A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid, mainly by pulsating heat pipe (1), cooling duct
(2), heating channel (3), adiabatic section thermal insulation material (4), NS poles magnet (5), the induction coil (6) of tape insulation layer, ammeter group
Into (7).First, the copper tube of certain length, washing, drying are cut.Copper tube is processed into certain elbow, certain straight pipe
Loop structure, filling liquid pipe of burn-oning in circuit upper end, first vacuumizes pulsating heat pipe from implementation of port (8), later by a certain concentration,
The magnetic liquid (9) of certain volume is injected into pulsating heat pipe (1) and is sealed by implementation of port (8).Cooling duct (2), heating are logical
Road (3), is all made of rectangular steel plates, and cold medium, thermal medium are inserted into cooling in internal flow, by the cooling section (10) of pulsating heat pipe
In channel (2), joining place sealing.Bringing-up section (12) is inserted into heating channel (2) again, joining place sealing.Centre, which reserves, is
Adiabatic section (11) will insulate on induction coil (6) any one straight pipe outer tube wall being tightly wound around, winding height 3~
4mm or so, winding thickness is as thick as possible, and induction coil both ends connect miniature ammeter (7).By NS poles magnet (5) with 20-
70 ° of angle tilts are mounted on pulsating heat pipe both sides, N poles, S poles one upper, one under, upper and lower spacing distance is twined more than coil
Around height.It is finally with thermal insulation material (4) that adiabatic section is fully wrapped around, in order to avoid heat losses.
Experiment case study described above is only that the preferred embodiment of the present invention is described, not to the present invention's
Conception and scope is defined, and under the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this in this field
The various modifications and improvement that the technical solution of invention is made, should all fall into protection scope of the present invention, and the present invention is claimed
Technology contents and all record are in detail in the claims.
Claims (9)
1. a kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid, it is characterised in that including loop pulsating heat pipe (1),
Cooling duct (2), heating channel (3), adiabatic section thermal insulation material (4), NS poles magnet (5), tape insulation layer induction coil (6),
Ammeter (7), wherein, pulsating heat pipe (1) is disposed vertically, and loop pulsating heat pipe (1) is snakelike time made of capillary is bent
Lu Guan, is divided into the cooling section (10) of upper end, and the bringing-up section (12) of lower end and the adiabatic section (11) of centre, pulsating heat pipe (1) are interior
Portion vacuumizes and part is filled with working medium, the gas-liquid plug for being spaced apart its internal formation, and heat source driving internal working medium phase transformation generates
It vibrates and circulates, complete transmission of the heat from bringing-up section to cooling section, cooling section (10) is inserted into cooling duct (2), adds
Hot arc (12) is placed in heating channel (3), and adiabatic section (11) are placed between NS poles magnet (5), and NS poles magnet (5) tilts 20-
70 °, adiabatic section (11) any one straight pipe winds multiturn induction coil (6) outside, and coil both ends are connect with ammeter (7), shape
Into closed circuit；Adiabatic section thermal insulation material (4) is filled outside in adiabatic section (11).
2. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
Cooling duct (2) is that there are heat-insulating material, channel one in round or rectangular channel, outside made of organic glass or metallic plate
End is cooling medium inlet, and opposite side is cooling media outlet, and the top cooling section (10) of pulsating heat pipe (1) is inserted into cooling duct
(2) in, and ensure insertion site joining place tight seal.
3. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
Heating channel (3) is that there are heat-insulating material, channel one in round or rectangular channel, outside made of organic glass or metallic plate
End is thermal medium inlet, and another side is thermal medium outlet, and the lower part bringing-up section (12) of loop pulsating heat pipe (1) is inserted into heating channel
(3) in, and ensure insertion site joining place tight seal.
4. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
The adiabatic section (11) of pulsating heat pipe (1) is at the middle part of pulsating heat pipe, is made of several straight pipes.
5. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
NS poles magnet (5) is U magnet, and one end is N poles, and one end is S poles, and NS poles magnet is placed in pulsating heat pipe bringing-up section (12) straight pipe
Both sides, N poles and S extremely in arbitrarily one end is upper, for the other end under, NS poles magnet keeps 20-70 ° of inclination angle, and is protected between NS poles
Spacing is held, magnetic field is formed in pulsating heat pipe adiabatic section (11) region.
6. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
The induction coil of any one straight pipe external application tape insulation layer of pulsating heat pipe adiabatic section (11) is closely wound multiturn, and coil is straight
Winding height on pipeline section is moderate, it is impossible to and it is longer, but wind the number of turns and increase as possible, the number of turns, sense can be increased by radial direction
Coil both ends is answered to be connected to an ammeter, sense electric current for measuring.
7. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
Adiabatic section thermal insulation material (4) is a kind of heat-preservation cotton of glass fibre material, for avoiding the loss of adiabatic section heat.
8. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, it is characterised in that
Ammeter (7) is a kind of sensitive ammeter, for detecting Weak current.
9. a kind of thermoelectric conversion device of pulsating heat pipe for charging magnetic liquid according to claim 1, feature is in magnetic
Property fluid (9) be also known as magnetic liquid, ferrofluid or magnetic liquid, be a kind of novel functional material, it both have liquid flowing
Property again have solid magnetic material magnetism.It is magnetic retention particle, base load liquid and the interface work by a diameter of nanometer scale
The colloidal liquid of a kind of stabilization that property agent three mixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711328987.XA CN108199560A (en) | 2017-12-13 | 2017-12-13 | A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711328987.XA CN108199560A (en) | 2017-12-13 | 2017-12-13 | A kind of thermoelectric conversion device for the pulsating heat pipe for charging magnetic liquid |
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| CN108199560A true CN108199560A (en) | 2018-06-22 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871021A (en) * | 2018-08-21 | 2018-11-23 | 广东合新材料研究院有限公司 | A kind of heat pipe and heat pipe auxiliary radiating method |
| CN109490366A (en) * | 2018-10-31 | 2019-03-19 | 北京建筑大学 | A kind of visualization pulsating heat pipe experimental system and experimental method |
| CN110336450A (en) * | 2019-07-02 | 2019-10-15 | 三峡大学 | Hydromagnetic generating device and its manufacturing method |
| CN110455428A (en) * | 2019-08-23 | 2019-11-15 | 昆明理工大学 | It is a kind of using magnetic liquid as the pulsating heat pipe temperature sensor and method of working medium |
| CN111551069A (en) * | 2020-05-20 | 2020-08-18 | 山东大学 | Method, system and application for improving boiling heat exchange efficiency |
| CN112217371A (en) * | 2019-07-10 | 2021-01-12 | 袁昭 | Sectional type water-based magnetofluid pulsating heat pipe temperature difference power generation device |
| CN113048820A (en) * | 2021-05-07 | 2021-06-29 | 大连海事大学 | Controllable tubular pulsating heat pipe heat transfer system with external oscillation source |
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