CN109714847A - Intermittent induction thermal reactor - Google Patents
Intermittent induction thermal reactor Download PDFInfo
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- CN109714847A CN109714847A CN201811607051.5A CN201811607051A CN109714847A CN 109714847 A CN109714847 A CN 109714847A CN 201811607051 A CN201811607051 A CN 201811607051A CN 109714847 A CN109714847 A CN 109714847A
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- heating tube
- coupling pipe
- magnetic coupling
- intermittent
- iron core
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Abstract
The invention discloses intermittent induction thermal reactors, belong to chemical industry, food and field of environmental technology.It include: iron core, primary coil, magnetic coupling pipe, heating tube.Iron core is made of soft magnetic materials, and the soft magnetic materials includes: Fe-based amorphous, cold rolled silicon steel, the Ni-based amorphous of iron, cobalt base amorphous, iron based nano crystal, perm synthetic, ferrite；Primary coil and magnetic coupling pipe are all wound in iron core, and magnetic coupling pipe is connected with heating tube；Injection port or outlet are arranged at the port position of heating tube, and injection port and outlet have same potential, and sample circulates in heating tube completes intermittent processing.Sample may make sufficiently to be reacted, or the processing time that setting is fixed.The intermittent induction thermal reactor does not use any metal polar plate and electrode to the heating of the low magnetic permeability sample of electrical conductance, is not necessarily to external heat source or radiation, efficiently and green, is suitble to intermittent processing.
Description
Technical field
The present invention relates to a kind of intermittent induction thermal reactors, belong to chemical industry, food and field of environmental technology.
Background technique
It is well known that the substance with high magnetic permeability, which is in alternating magnetic field, can generate vortex phenomenon and generate heat, lead to
It crosses and inputs alternating current or pulse current to electromagnetic coil, so that the inner or outer side of electromagnetic coil generates certain alternation magnetic
, to will appear induced current in monolith conductor therein.
Chemical solution, food skill in actual life, for the liquid sample of low magnetic permeability, such as in chemical technology field
Food liquid and field of environmental technology implants leaching liquor, organic liquor in art field etc., because its relative permeability is close
In zero, so vortex phenomenon will not occur, and then fuel factor will not occur, still, to upper even in alternating magnetic field
The processing for stating liquid sample requires input energy thereto, carries out efficient heating to liquid sample and at it to realize
Inside completes quickly heat transfer and mass transport process, various new physical field assisted Firing Technologies and arises, such as radio frequency heating,
The purpose quickly heated to above-mentioned liquid sample may be implemented in microwave heating, Ohmic heating.Traditional induction heating skill
Although art uses alternating magnetic field as driving source, the iron-based class material of high magnetic permeability can only be heated, is made with high magnetic permeability
Iron-based class material there is fuel factor, and then fluid sample is transferred heat to by way of heat transfer.
And above-mentioned Ohmic heating is directly contacted usually using the pole plate of metal with sample, using electric field in electrical conductance sample
Portion inspires sufficiently large current density to induce its quick heat, but can cause electrochemical reaction between undesirable pole plate, cause
There is the problems such as processing efficiency reduces, heavy metal is revealed and sample pollutes in pole plate corrosion or fouling.Especially in acid and alkalinity
Under environment and high current density, the above problem can be presented immediately；And the specific frequency electromagnetic wave that pole plate emits in radio frequency heating is only
Physical size and the comparable macromolecular substances of the electromagnetic wavelength are acted on, sample is directly physically contacted without occurring therewith,
So be not in the above problem, but sample temperature rise rate is not as good as ohm electric field treatment.
Summary of the invention
In order to reach not only can to avoid above-mentioned Ohmic heating there are the problem of, but also the quick heat of sample can be made
Purpose, this application discloses a kind of novel physical field pyrogenicity reactors, by the way that injection port and outlet are arranged at heating
The port position of pipe, so that injection port and outlet potential having the same, faradic circuit are present in the course of work
Between magnetic coupling pipe and heating tube, sample circulates in heating tube completes intermittent processing, after the completion of abundant processing or
After person handles the set time, sample is taken out, carries out the processing of next group sample.
The intermittent induction thermal reactor can set sample in reacting treatment time wherein, utilize the friendship in iron core
Become magnetic flux to motivate the low magnetic permeability material or reaction medium of continuous flow, allows its own quick heat.
The first purpose of this invention is to provide a kind of intermittent induction thermal reactor, comprising: iron core, primary coil,
Magnetic coupling pipe, heating tube；
Wherein, iron core is made of soft magnetic materials, and the soft magnetic materials includes: that Fe-based amorphous, cold rolled silicon steel, iron are Ni-based non-
Brilliant, cobalt base amorphous, iron based nano crystal, perm synthetic, ferrite；Injection port and outlet are arranged at the port position of heating tube
It sets, sample circulates in heating tube completes intermittent processing；In the course of work, injection port and outlet electricity having the same
Gesture, faradic circuit are present between magnetic coupling pipe and heating tube；Primary coil and magnetic coupling Guan Jun are wound on iron core,
Magnetic coupling pipe is connected with heating tube；The intermittent induction thermal reactor includes at least two magnetic coupling pipes, at least one adds
Heat pipe.
In one embodiment, after power supply applies voltage to primary coil, the total magnetic flux range carried in iron core is
0-5Wb, the initial permeability of iron core are 1000-50000.
In one embodiment, the instantaneous induced voltage polarity at heating tube both ends is on the contrary, the alternating flux in iron core is drawn
The low magnetic permeability reaction medium with electrical conductance produces effective potential difference, the induced current in heating tube in hair magnetic coupling pipe
Density is 1-60A/cm2。
In one embodiment, heating bore is less than magnetic coupling bore.
In one embodiment, the heating tube and magnetic coupling pipe are round tube, and heating tube sectional area and magnetic coupling
The ratio between sectional area of pipe is 1:2~1:30.
In one embodiment, induced current circuit exists only between magnetic coupling pipe and heating tube, injection port and go out
Sample mouth has electric leakage, is used for enclosed circulation stream process.
In one embodiment, the conductivity of the low magnetic permeability reaction medium with electrical conductance need to be in 0.3-20S/m model
It encloses.
Second object of the present invention is to provide a kind of heating device, and the heating device uses above-mentioned intermittent induction
Thermal reactor, the heating device heat flowable sample.
In one embodiment, the flowable sample is substance of the conductivity within the scope of 0.3-20S/m.
Third object of the present invention is to provide a kind of above-mentioned intermittent induction thermal reactor and/or above-mentioned heating device
In thermal sterilization, hot enzyme deactivation, thermal extraction and the application in catalyzing and synthesizing.
The intermittent induction thermal reactor in addition to realize to the flash heat transfer and mass transfer of liquid sample other than, green and without dirt
Dye, suitable for using in thermal sterilization, hot enzyme deactivation, thermal extraction and in catalyzing and synthesizing.
The core parameter of the intermittent induction thermal reactor is the initial permeability of iron core and the total magnetic flux that it can be carried
Φ is measured, product of the total magnetic flux Φ in iron core equal to effective magnetic conductive area S of magnetic flux density B and iron core in iron core, i.e. Φ=
BS。
Voltage ratio between primary coil and magnetic coupling pipe follows faraday electromagnetic induction principle.Material in heating tube or
Reaction medium impedance Z can be used impedance analyzer and be tested, to calculate its induced current density J, i.e. I according to Ohm's law
=U/Z, J=I/S, wherein U-heating tube both ends induced voltage, that is, effective electromotive force is poor；Induced current in I-heating tube is strong
Degree；S-heating tube sectional area.
Beneficial effect of the present invention
1. the present invention provides a kind of intermittent thermal reactor, make using alternating magnetic field and by reasonable circuit structure design
The quick heat of material or reaction medium of low magnetic permeability；By the port position that injection port and outlet are arranged to heating tube
Set so that in the course of work, injection port and outlet potential having the same, faradic circuit be present in magnetic coupling pipe and
Between heating tube, sample circulates in heating tube completes intermittent processing, after the completion of abundant reaction treatment or handles
After set time, sample is taken out, carries out the processing of next group sample.
2. intermittent thermal reactor provided by the invention without any metal polar plate and electrode, does not have the heating of sample
There are external heat source and radiation, avoids pole plate caused by the pole plate in Ohmic heating using metal is directly contacted with sample and corrode
Or fouling, occur processing efficiency reduce, heavy metal leakage and sample pollute the problems such as, intermittent thermal reactor provided by the invention
It is green and efficient, it is suitble to intermittent processing.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the schematic diagram of intermittent induction thermal reactor I；
Fig. 2 is the schematic diagram of intermittent induction thermal reactor II；
Fig. 3 is the schematic diagram of intermittent induction thermal reactor III；
Wherein, 101- iron core；102- primary coil；103- magnetic coupling pipe；104- heating tube；105- pump；The closed appearance of 106-
Device；201- injection port；202- outlet.
Specific embodiment
In view of deficiency in the prior art, present inventor is studied for a long period of time and is largely practiced, and is able to propose the present invention
Technical solution.The technical solution, its implementation process and principle etc. will be further explained as follows.
Embodiment 1
Intermittent induction thermal reactor I, as shown in Figure 1, primary coil 102, magnetic coupling pipe 103 adds including iron core 101
Heat pipe 104, pump 105, closed container 106；
Wherein, iron core is made of soft magnetic materials, and the soft magnetic materials includes: that Fe-based amorphous, cold rolled silicon steel, iron are Ni-based non-
Brilliant, cobalt base amorphous, iron based nano crystal, perm synthetic, ferrite；
Primary coil 102 is wound on iron core 101, and the number of turns of primary coil 102 is 6 circles, by power supply to primary coil
102 apply 500V voltages, and the magnetic flux in iron core 101 is 0.06Wb, in the embodiment of the present invention, the permeability magnetic material of iron core 101 with
For cold rolled silicon steel, initial relative permeability 1000, magnetic flux density when work is 1.2T, effective magnetic conduction of iron core 101
Sectional area is 0.05m2；Magnetic coupling pipe 103 is wound on iron core 101, and the number of turns of magnetic coupling pipe 103 is 36 circles；Magnetic coupling pipe 103
Supporter with heating tube 104 as the reaction medium continuously flowed, magnetic coupling pipe 103 and heating tube 104 at this time is communications and liaison
State, the sectional area of heating tube 104 are 0.36cm2, the sectional area of magnetic coupling pipe 103 is 1cm2, reaction medium is stored in closed container
In 106, pump 105 is placed at injection port 201, when reaction medium that conductivity is 2.35S/m (25 DEG C, 0.2%HCl and 0.3%
Na2CO3) circulation heating tube 104 when, the effective electromotive force difference that is subject to is 3000V, and the length of heating tube 104 is 20cm, works as reaction
Then impedance is 2000 Ω when medium is full of heating tube 104, therefore the induced current in heating tube 104 is 1.5A, induced current density
For 2.78A/cm2；The injection port 201 of reaction medium is located at 103 middle position of magnetic coupling pipe, and the outlet of reaction medium
202 are located at 104 port of heating tube, and injection port 201 and outlet 202 are while immersed in the reaction medium of closed container 106
Convenient for circulating processing.When flow is 10ml/min, the reaction medium of recycle stream is in the residence time of heating tube 104
44s is tested by thermal infrared imager and is found, the reaction medium that 25 DEG C of initial room-temperature is in induction I internal circulation flow of thermal reactor
After 4.5min, the reaction medium temperature in closed container 106 rises to 87.8 DEG C.
Embodiment 2
Intermittent induction thermal reactor II, as shown in Fig. 2, primary coil 102, magnetic coupling pipe 103 adds including iron core 101
Heat pipe 104, pump 105, closed container 106；
Wherein, primary coil 102 is wound on iron core 101, and the number of turns of primary coil 102 is 12 circles, by power supply to first
Grade coil 102 applies 2000V voltage, and the magnetic flux in iron core 101 is 0.12Wb, at this point, the permeability magnetic material of iron core 101 is cobalt-based
Amorphous, initial relative permeability 35000, magnetic flux density when work is 0.8T, and effective magnetic conduction sectional area of iron core 101 is
0.15m2；Magnetic coupling pipe 103 is wound on iron core 101, and the number of turns of magnetic coupling pipe 103 is 48 circles；Magnetic coupling pipe 103 and heating tube
104 supporter as the reaction medium continuously flowed, magnetic coupling pipe 103 and heating tube 104 at this time are communications and liaison state, heating
The sectional area of pipe 104 is 0.16cm2, the sectional area of magnetic coupling pipe 103 is 2.3cm2, reaction medium is stored in closed container 106,
Pump 105 is placed at injection port 201, when reaction medium that conductivity is 3.47S/m (25 DEG C, 0.6%NaOH and 0.2%KCl) stream
When logical heating tube 104, the effective electromotive force difference being subject to is 8000V, and the length of heating tube 104 is 10cm, when reaction medium is full of
Then impedance is 1600 Ω when heating tube 104, therefore the induced current in heating tube 104 is 5A, induced current density 31.25A/
cm2；The outlet 201 of reaction medium is located at the port of magnetic coupling pipe 103, and the injection port 202 of reaction medium is located at heating tube
At 104 ports, injection port 201 and outlet 202 while immersed in the reaction medium of closed container 106 convenient for circulating place
Reason.When flow is 10ml/min, the reaction medium of recycle stream is 10s in the residence time of heating tube 104, passes through infrared thermal imagery
Instrument test discovery, the reaction medium that 25 DEG C of initial room-temperature is after incuding II internal circulation flow 6.5min of thermal reactor, closed container
Reaction medium temperature in 106 rises to 93.4 DEG C.
Embodiment 3
Intermittent induction thermal reactor III, as shown in figure 3, primary coil 102, magnetic coupling pipe 103 adds including iron core 101
Heat pipe 104, pump 105, closed container 106；
Wherein, primary coil 102 is wound on iron core 101, and the number of turns of primary coil 102 is 8 circles, by power supply to primary
Coil 102 applies 1800V voltage, and the magnetic flux in iron core 101 is 0.32Wb, at this point, the permeability magnetic material of iron core 101 is iron-based receives
Meter Jing, initial relative permeability 90000, magnetic flux density when work is 1.6T, and effective magnetic conduction sectional area of iron core 101 is
0.2m2；Magnetic coupling pipe 103 is wound on iron core 101, and the number of turns of magnetic coupling pipe 103 is 40 circles；Magnetic coupling pipe 103 and heating tube
104 supporter as the reaction medium continuously flowed, magnetic coupling pipe 103 and heating tube 104 at this time are connection state, heating
The sectional area of pipe 104 is 0.5cm2, the sectional area of magnetic coupling pipe 103 is 3.6cm2, reaction medium is stored in closed container 106, pumps
105 are placed at injection port 201, when conductivity be 0.28S/m reaction medium (25 DEG C, 0.1%HNO3And 0.1%NaCl) circulation
When heating tube 104, the effective electromotive force difference being subject to is 9000V, and the length of heating tube 104 is 25cm, is added when reaction medium is full of
Then impedance is 15000 Ω when heat pipe 104, therefore the induced current in heating tube 104 is 0.6A, and induced current density is 1.2A/
cm2；The injection port 201 of reaction medium is located at the port of magnetic coupling pipe 103, and the outlet 202 of reaction medium is located at heating
At 104 port of pipe, injection port 201 and outlet 202 while immersed in the reaction medium of closed container 106 convenient for circulating
Processing.When flow is 10ml/min, the reaction medium of recycle stream is 75s in the residence time of heating tube 104, passes through infrared heat
As instrument test discovery, the reaction medium that 25 DEG C of initial room-temperature is after incuding III internal circulation flow 8min of thermal reactor, closed container
Reaction medium temperature in 106 rises to 96.6 DEG C.
Intermittent induction thermal reactor provided by the invention is by being based on closed circuit using the alternating magnetic field in iron core
It is poor to cause effective electromotive force in the material or reaction medium fluid of structure, induced current is amplified, the low magnetic with electrical conductance is made
The quick heat of conductance sample.By the way that injection port and outlet to be arranged to the port position of heating tube, so that in the course of work,
Injection port and outlet potential having the same, faradic circuit are present between magnetic coupling pipe and heating tube, and sample exists
It is circulated in heating tube and completes intermittent processing, after the completion of abundant reaction treatment or after the processing set time, by sample
It takes out, carries out the processing of next group sample.Low magnetic permeability sample of the intermittent induction thermal reactor provided by the invention to electrical conductance
The heating of product is without any metal polar plate and electrode, without external heat source and radiation, avoids in Ohmic heating using gold
Caused by the pole plate of category is directly contacted with sample pole plate corrosion or fouling, occur processing efficiency reduce, heavy metal leakage and sample
The problems such as product pollute, intermittent thermal reactor provided by the invention is green and efficient, is suitble to intermittent processing.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the invention, and is appointed
What person skilled in the art can do various change and modification, therefore this hair without departing from the spirit and scope of the present invention
Bright protection scope should subject to the definition of the claims.
Claims (10)
1. intermittent induction thermal reactor characterized by comprising iron core, primary coil, magnetic coupling pipe, heating tube；
Wherein, iron core is made of soft magnetic materials, and the soft magnetic materials includes: Fe-based amorphous, cold rolled silicon steel, the Ni-based amorphous of iron, cobalt
Base amorphous, iron based nano crystal, perm synthetic, ferrite；Injection port and outlet are arranged at the port position of heating tube, have
The low magnetic permeability reaction medium of electrical conductance circulates in heating tube completes intermittent processing；In the course of work, injection port and
Outlet potential having the same, faradic circuit are present between magnetic coupling pipe and heating tube；Primary coil and magnetic coupling
It closes Guan Jun to be wound on iron core, magnetic coupling pipe is connected with heating tube；The intermittent induction thermal reactor includes at least two
Magnetic coupling pipe, at least one heating tube.
2. intermittent induction thermal reactor according to claim 1, which is characterized in that power supply applies voltage to primary coil
Afterwards, the total magnetic flux range carried in iron core is 0-5Wb, and the initial permeability of iron core is 1000-50000.
3. intermittent induction thermal reactor according to claim 1, which is characterized in that the instantaneous induced electricity at heating tube both ends
Pressure polarity is on the contrary, the low magnetic permeability reaction medium that the alternating flux in iron core causes in magnetic coupling pipe with electrical conductance has produced
The potential difference of effect, the induced current density in heating tube are 1-60A/cm2。
4. intermittent induction thermal reactor according to claim 1, which is characterized in that heating bore is less than magnetic coupling pipe
Internal diameter.
5. intermittent induction thermal reactor according to claim 4, which is characterized in that the heating tube and magnetic coupling pipe are
Round tube, and the ratio between sectional area of heating tube sectional area and magnetic coupling pipe is 1:2~1:30.
6. intermittent induction thermal reactor according to claim 1, which is characterized in that induced current circuit exists only in magnetic
Between coupling pipe and heating tube, injection port and outlet have electric leakage, are used for enclosed circulation stream process.
7. intermittent induction thermal reactor according to claim 1, which is characterized in that heating tube and magnetic coupling pipe have electricity
Insulating properties.
8. a kind of heating device, which is characterized in that the heating device uses intermittent induction as claimed in claim 1 to 7
Thermal reactor, the heating device heat flowable sample.
9. heating device according to claim 8, which is characterized in that the flowable sample is conductivity in 0.3-20S/
Substance within the scope of m.
10. intermittent induction thermal reactor as claimed in claim 1 to 7 and/or any heating of claim 8-9
Device is in thermal sterilization, hot enzyme deactivation, thermal extraction and the application in catalyzing and synthesizing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811607051.5A CN109714847B (en) | 2018-12-27 | 2018-12-27 | Intermittent induction thermal reactor |
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| CN201811607051.5A CN109714847B (en) | 2018-12-27 | 2018-12-27 | Intermittent induction thermal reactor |
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| CN109714847A true CN109714847A (en) | 2019-05-03 |
| CN109714847B CN109714847B (en) | 2020-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912174A (en) * | 2021-10-29 | 2022-01-11 | 华中科技大学 | Method for improving performance of sewage treatment catalyst, product and application |
| CN115216599A (en) * | 2022-07-06 | 2022-10-21 | 中国航发北京航空材料研究院 | Induction heating device and method for controlling thickness of coarse grain structure on surface layer of nano metal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804708Y (en) * | 2005-07-01 | 2006-08-09 | 石殿栋 | Electromagnetic induction instant water heater |
-
2018
- 2018-12-27 CN CN201811607051.5A patent/CN109714847B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804708Y (en) * | 2005-07-01 | 2006-08-09 | 石殿栋 | Electromagnetic induction instant water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912174A (en) * | 2021-10-29 | 2022-01-11 | 华中科技大学 | Method for improving performance of sewage treatment catalyst, product and application |
| CN115216599A (en) * | 2022-07-06 | 2022-10-21 | 中国航发北京航空材料研究院 | Induction heating device and method for controlling thickness of coarse grain structure on surface layer of nano metal |
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| CN109714847B (en) | 2020-07-03 |
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