CN105783246A - Electromagnetic eddy current heating system - Google Patents
Electromagnetic eddy current heating system Download PDFInfo
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- CN105783246A CN105783246A CN201610253669.0A CN201610253669A CN105783246A CN 105783246 A CN105783246 A CN 105783246A CN 201610253669 A CN201610253669 A CN 201610253669A CN 105783246 A CN105783246 A CN 105783246A
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- Prior art keywords
- heating
- electromagnetic
- zone
- multiple tube
- electromagnetic eddy
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/185—Water-storage heaters using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses an electromagnetic eddy current heating system. The electromagnetic eddy current heating system comprises a control unit and a plurality of electromagnetic eddy current heating units electrically connected to the control unit, wherein the electromagnetic eddy current heating units are connected in series, in parallel or in series parallel for forming a centralized heating body or dispersed electromagnetic heating bodies; each electromagnetic eddy current heating unit comprises one or more composite cylinder heating layers (1), one or more composite pipe heating layers (2) and one or more electromagnetic coil layers (3), wherein the electromagnetic coil layers (3) are arranged between the composite cylinder heating layers (1) and the composite pipe heating layers (2) adjacent to the composite cylinder heating layers (1), between every two adjacent composite cylinder heating layers (1) and/or between every two adjacent composite pipe heating layers (2). According to the electromagnetic eddy current heating system, the electromagnetic induction utilization rate is effectively increased, and the problem that composite pipes and composite cylinders are easily corroded or the electromagnetic induction utilization efficiency is low is solved.
Description
Technical field
The present invention relates to Electromagnetic Heating field, particularly relate to a kind of electromagnetic vortex heating system.
Background technology
The usual people heating to object, one is combustion heating, and the burning such as coal, oil, gas equal energy source produces heat；Two is the principle utilizing and producing Joule heat on resistance, utilizes resistance wire to convert electric energy to heat.The mode (conduction of heat, thermal convection current, heat radiation) of the only logical heat transfer of these heats, just can be delivered on the object needing heating, also can be only achieved the purpose adding hot object.As liquid is heated, heated liquid absorbs outside heat by heated object such as steel and is delivered in liquid again and realizes intensification.Therefore, they broadly fall into indirect heating manner.And based on electromagnetic inductive heating principle, to metal object heating and non-metallic objectsit is not a metal object mode of heating, it is simply that belong to the mode of directly heating.
For non-metallic objectsit is not a metal object, adopt operating frequency be about 240MHZ and more than, the vibration per second of its interior molecules, atom can be made, rubbing more than one hundred million times makes object self produce heat, such as microwave heating.
For metal object, then can adopt operating frequency intermediate frequency more than several KHz (KHZ) to hundreds of KHz, high-frequency induction heating.Low frequency induction can also be adopted to heat, such as power frequency 50HZ etc..Utilize electromagnetic induction principle, alternating current on logical on inductance coil, the alternating magnetic field of a same frequency can be produced, magnetic field is put into metallic object, metal body surface can produce eddy current.Utilize eddy current effect, by the resistance in metal object, convert thereof into heat energy.While eddy current, adding a small amount of heat such as hysteresis effect, Kelvin effect, edge effect, they make the temperature of metal object raise rapidly jointly, it is achieved the quickly purpose of heating.
But, currently used electromagnetic eddy liquid heater, it is the container made of iron the loading liquid such as water, wet goods that utilize and can produce electromagnetic eddy mostly, then outside container made of iron around on electromagnetic heating coil as electromagnetic eddy liquid heater, electromagnetic heat energy is produced at container body by electromagnetic induction, electromagnetic heat energy is conducted to liquid, it is achieved the heating to liquid.
Existing heater has the disadvantage that
1, when adding hot water, if adopting non-non-corrosive material, water can bring corrosion problem；If employing non-corrosive material, electromagnetic induction efficiency is relatively low again；
2, equal quality liquid big not as holding body (multitube) heat exchange area compared with little to the heat exchange area of liquid in single appearance body heater more.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of electromagnetic vortex heating system, overcome the utilization rate of solenoid when adding hot liquid low, and multiple tube, compound cylinder are perishable or the inefficient problem of electromagnetic induction.
It is an object of the invention to be achieved through the following technical solutions: a kind of electromagnetic vortex heating system, including control unit and with control unit be electrically connected plurality of electromagnetic eddy heating for heating unit, described plurality of electromagnetic eddy heating for heating unit often organizes electromagnetic eddy heating unit and forms centralized or distributed electromagnetic calandria with series, parallel or series-parallel mode.
Wherein, often group electromagnetic eddy heating unit all includes at least one compound cylinder zone of heating 1, at least one multiple tube zone of heating 2 and at least one electromagnetic wire ring layer 3, and described electromagnetic wire ring layer 3 is arranged between adjacent two compound cylinder zones of heating 1 and multiple tube zone of heating 2, between two adjacent compound cylinder zones of heating 1 and/or between two adjacent multiple tube zones of heating 2.
The sidewall of described compound cylinder zone of heating 1 includes the first antirust internal layer 101 and the first electromagnetic eddy heat generating layers 102 from the inside to the outside successively, the outer wall of described first antirust internal layer 101 and the fixing connection of the interior wall seamless of the first electromagnetic eddy heat generating layers 102, the inwall of described first antirust internal layer 101 also forms the cavity 6 for loading heated liquid.
Described multiple tube zone of heating 2 also includes the second antirust internal layer 201 and the second electromagnetic eddy heat generating layers 202 from the inside to the outside successively, the outer wall of described second antirust internal layer 201 and the fixing connection of the interior wall seamless of the second electromagnetic eddy heat generating layers 202, the inwall of described second antirust internal layer 201 also forms the liquid-filled pipe 5 of this multiple tube zone of heating 2.
Wherein, described control unit at least includes temperature control modules, pressure control module, Liquid level module, pump startup controls one or more combinations in module and scarce liquid protection module, the temperature being completed compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 by temperature control modules is controlled, the Stress control of compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 is completed by pressure control module, the Liquid level of compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 is completed by Liquid level module, complete the start and stop with cavity 6 and/or the pump of liquid-filled pipe 5 physical connection by pump startup control module to manipulate, the liquid level protection that module completes compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 is protected to control by scarce liquid.
Based on above-described embodiment, further, between described electromagnetic wire ring layer 3 and multiple tube zone of heating 2, and between described electromagnetic wire ring layer 3 and compound cylinder zone of heating 1, it is equipped with thermal insulation layer 4.
Based on any one in above-described embodiment, further, described first antirust internal layer 101 and the second antirust internal layer 201 at least include the one in the antirust internal layer of rustless steel and the antirust internal layer of copper product.
Based on any one in above-described embodiment, further, described first electromagnetic eddy heat generating layers 102 and the second electromagnetic eddy heat generating layers 202 at least include the one in carbon steel electromagnetic eddy heat generating layers, silicon steel electromagnetic eddy heat generating layers and graphite electromagnetic eddy heat generating layers.
Based on any one in above-described embodiment, further, described second antirust internal layer 201 and the second electromagnetic eddy heat generating layers 202 are light-wall pipe.
Based on any one in above-described embodiment, further, the multiple tube in described multiple tube zone of heating 2 forms calandria by coiling, and in this calandria, the outer surface of two adjacent rings multiple tube contacts with each other.
Based on any one in above-described embodiment, further, control unit includes multiple controller connected one to one respectively with plurality of electromagnetic eddy heating for heating unit, the plurality of controller concentrated setting in switch board or be distributed in often group electromagnetic eddy heating unit in.
The invention has the beneficial effects as follows:
(1) present invention adopts the mode that multimode combines, flexible configuration can become the heating system of different capacity, centralized heating system and distributed heating system can be formed, to realize concentration and add the different collocation of (confession) heat, it is to avoid transmission pipeline is long and the heat loss that causes.
(2) multiple tube that the present invention proposes forms by seamless close-connected antirust internal layer and electromagnetic eddy heat generating layers with compound cylinder, the corrosion problem overcoming heater when liquid is heated, ensure heated liquid quality while, it is ensured that electromagnetic induction efficiency.
(3) electromagnetic wire ring layer or be arranged between adjacent two compound cylinder zones of heating and multiple tube zone of heating in the present invention, or it is arranged between adjacent two compound cylinder zone of heating, or between adjacent two multiple tube zones of heating, the electromagnetic field making electromagnetic wire ring layer both sides is all utilized by compound cylinder zone of heating or multiple tube zone of heating, two zones of heating of heating simultaneously, it is effectively increased the electromagnetic induction efficiency of electromagnetic wire ring layer, reduce its electromagnetic induction amount of leakage, under same power, the heat of generation is bigger than non-sandwich type structure.
Accompanying drawing explanation
Fig. 1 is the system block diagram of electromagnetic vortex heating system of the present invention；
Fig. 2 is the system block diagram of control unit or controller in the present invention；
Fig. 3 is the structural representation of electromagnetic eddy heating unit in the present invention；
Fig. 4 is the structural representation of compound cylinder in the present invention；
Fig. 5 is the structural representation of multiple tube in the present invention；
In figure, 1 compound cylinder zone of heating, 101 first antirust internal layers, 102 first electromagnetic eddy heat generating layers, 2 multiple tube zones of heating, 201 second antirust internal layers, 201 second electromagnetic eddy heat generating layers, 3 electromagnetic wire ring layers, 4 thermal insulation layers, 5 liquid-filled pipes, 6 cavitys.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, This embodiment describes a kind of electromagnetic vortex heating system, including control unit and with control unit be electrically connected plurality of electromagnetic eddy heating for heating unit, described plurality of electromagnetic eddy heating for heating unit often organizes electromagnetic eddy heating unit and forms centralized or distributed electromagnetic calandria with series, parallel or series-parallel mode.
As shown in Figure 2, described control unit at least includes temperature control modules, pressure control module, Liquid level module, pump startup controls one or more combinations in module and scarce liquid protection module, the temperature being completed compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 by temperature control modules is controlled, the Stress control of compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 is completed by pressure control module, the Liquid level of compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 is completed by Liquid level module, complete the start and stop with cavity 6 and/or the pump of liquid-filled pipe 5 physical connection by pump startup control module to manipulate, the liquid level protection that module completes compound cylinder zone of heating 1 and/or multiple tube zone of heating 2 is protected to control by scarce liquid.
Based on above-described embodiment, further, described control unit includes multiple controller connected one to one respectively with plurality of electromagnetic eddy heating for heating unit, the plurality of controller concentrated setting in switch board or be distributed in often group electromagnetic eddy heating unit in.Each controller all can control one or more combinations in module, pressure control module, Liquid level module, pump startup control module and scarce liquid protection module by integrated temperature.
As shown in Figure 3, in the present invention, often group electromagnetic eddy heating unit all includes at least one compound cylinder zone of heating 1, at least one multiple tube zone of heating 2 and at least one electromagnetic wire ring layer 3, and described electromagnetic wire ring layer 3 is arranged between adjacent two compound cylinder zones of heating 1 and multiple tube zone of heating 2, between two adjacent compound cylinder zones of heating 1 and/or between two adjacent multiple tube zones of heating 2.
As shown in Figure 4, the sidewall of described compound cylinder zone of heating 1 includes the first antirust internal layer 101 and the first electromagnetic eddy heat generating layers 102 from the inside to the outside successively, the outer wall of described first antirust internal layer 101 and the fixing connection of the interior wall seamless of the first electromagnetic eddy heat generating layers 102, the inwall of described first antirust internal layer 101 also forms the cavity 6 for loading heated liquid.The first described antirust internal layer 101 and the first electromagnetic eddy heat generating layers 102 are in close contact, and its implementation can adopt any processing technique, such as the mode etc. compressed.
In the present invention, the cavity 6 in compound cylinder zone of heating 1 makes to double as storage bin, and liquid can enter cavity 6 by multiple tube after being heated, it is possible to is introduced in the liquid-filled pipe 5 that cavity 6 flows into multiple tube again.
As shown in Figure 5, described multiple tube zone of heating 2 also includes the second antirust internal layer 201 and the second electromagnetic eddy heat generating layers 202 from the inside to the outside successively, the outer wall of described second antirust internal layer 201 and the fixing connection of the interior wall seamless of the second electromagnetic eddy heat generating layers 202, the inwall of described second antirust internal layer 201 also forms the liquid-filled pipe 5 of this multiple tube zone of heating 2.The second described antirust internal layer 201 and the second electromagnetic eddy heat generating layers 202 are in close contact, and its implementation may be used without any processing technique, such as the mode etc. compressed.
Based on above-described embodiment, further, between described electromagnetic wire ring layer 3 and multiple tube zone of heating 2, and between described electromagnetic wire ring layer 3 and compound cylinder zone of heating 1, it is equipped with thermal insulation layer 4.
Based on any one in above-described embodiment, further, described first antirust internal layer 101 and the second antirust internal layer 201 at least include the one in the antirust internal layer of rustless steel (such as 304 rustless steels) and the antirust internal layer of copper product (such as TP2 copper).
Based on any one in above-described embodiment, further, described first electromagnetic eddy heat generating layers 102 and the second electromagnetic eddy heat generating layers 202 at least include the one in carbon steel electromagnetic eddy heat generating layers, silicon steel electromagnetic eddy heat generating layers and graphite electromagnetic eddy heat generating layers.
When adding hot liquid, when particularly adding hot water, the first antirust internal layer 101 and the second antirust internal layer 201 can play anticorrosion, ensure that water quality is clean, avoid the effect such as cavity 6 and the internal rustization of liquid-filled pipe 5.First electromagnetic eddy heat generating layers 102 and the second electromagnetic eddy heat generating layers 202 such as carbon steel, can play the effect producing electromagnetic eddy heat.
Based on any one in above-described embodiment, further, described second antirust internal layer 201 and the second electromagnetic eddy heat generating layers 202 are light-wall pipe.
Based on any one in above-described embodiment, further, the multiple tube in described multiple tube zone of heating 2 forms calandria by coiling, and in this calandria, the outer surface of two adjacent rings multiple tube contacts with each other.
In the present invention, thermal insulation layer 4 can adopt insulating layer of asbestos, it would however also be possible to employ the thermal insulation layer that the heat proof materials such as glass heat insulation foam are made.Solenoid can use copper pipe, higher temperature line, electromagnetism twisted wire or enamel-covered wire etc..Described electromagnetic wire ring layer 3 includes single group or plurality of electromagnetic coil.
As shown in Figure 3, Fig. 3 is an optimum embodiment of electromagnetic eddy heating unit in the present invention, this embodiment includes a compound cylinder zone of heating 1, one multiple tube zone of heating 2, two electromagnetic wire ring layers 3 and three thermal insulation layers 4, form a sandwich type structure, in this embodiment, said two electromagnetic wire ring layer 3 i.e. the first electromagnetic wire ring layer 301 and the second electromagnetic wire ring layer 302, described i.e. the first thermal insulation layer 401 of three thermal insulation layers 4, second thermal insulation layer 402 and the 3rd thermal insulation layer 403, in this embodiment, it is set to compound cylinder zone of heating 1 from inside to outside successively, 3rd thermal insulation layer 403, first electromagnetic wire ring layer 301, second thermal insulation layer 402, multiple tube zone of heating 2, first thermal insulation layer 401 and the second electromagnetic wire ring layer 302.Wherein, the first electromagnetic wire ring layer 301 and the second electromagnetic wire ring layer 302 all include two groups of solenoids.In this embodiment, first electromagnetic wire ring layer 301 can heat compound cylinder zone of heating 1 and multiple tube zone of heating 2 simultaneously, is effectively increased the electromagnetic induction efficiency of the first electromagnetic wire ring layer 301, reduces its electromagnetic induction amount of leakage, under same power, the heat of generation is bigger than non-sandwich type structure.
Certainly, the electromagnetism utilization rate of the second electromagnetic wire ring layer 302 does not have the first electromagnetic wire ring layer 301 high, in actual applications, can also set up according to temperature requirements or save, additionally, second electromagnetic wire ring layer 302 can also continue to set up multiple multiple tube zone of heating 2 or compound cylinder zone of heating 1, and compound cylinder zone of heating 1 and multiple tube zone of heating 2 interval are arranged, and increase heat exchange area with this, improve the rate of heat addition, promote the utilization rate of electromagnetic induction.
The present invention has broken traditional electric heating coil (resistance wire) heating system, adopt state-of-the-art magnetic field induction eddy heating for heating principle, namely electric current produces magnetic field by coil, in magnetic field, the magnetic line of force can make to produce in metallic object countless little eddy current when passing through magnetic conductive metal material, make metal material heating at a high speed voluntarily itself, reach object temperature in heated metal material body.Thus greatly reducing scattering and disappearing of heat, improve the thermal efficiency, therefore power savings is very notable, up to 30%～75%.Because electromagnetic heating coil itself does not generate heat, and be adopt insulant and high-temperature cable manufacture, aoxidize and the problem of reduction of service life at high operating temperatures so being absent from the resistance wire as former electric heating coil, there is the advantages such as long service life, heating rate is fast, nothing needs repairing, decrease maintenance time, reduce cost.Compare with resistance heater, when same volumetric water, the temperature rising-time of the present invention effectively shortens, use power reduces, non-corroding in life-time service composite tube body, heating recirculated water cleaning, transparent, clean, the present invention had both ensured the quality of heated liquid, improve again electromagnetic induction efficiency.
A kind of electromagnetic vortex heating system proposed by the invention, adopt the mode of multimode combination, flexible configuration can become the heating system of different capacity, centralized heating system and distributed heating system can be formed, to realize concentration and add the different collocation of (confession) heat, it is to avoid transmission pipeline is long and the heat loss that causes.
A kind of electromagnetic vortex heating system according to the present invention is described in an illustrative manner above with reference to accompanying drawing.But; skilled artisan would appreciate that; for a kind of electromagnetic vortex heating system that the invention described above is proposed; various improvement can also be made on without departing from the basis of present invention; or wherein portion of techniques feature is carried out equivalent replacement; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (7)
1. an electromagnetic vortex heating system, it is characterized in that: include control unit and the plurality of electromagnetic eddy heating for heating unit being electrically connected with control unit, described plurality of electromagnetic eddy heating for heating unit often organizes electromagnetic eddy heating unit and forms centralized or distributed electromagnetic calandria with series, parallel or series-parallel mode；
Wherein, often group electromagnetic eddy heating unit all includes at least one compound cylinder zone of heating (1), at least one multiple tube zone of heating (2) and at least one electromagnetic wire ring layer (3), and described electromagnetic wire ring layer (3) is arranged between adjacent two compounds cylinder zone of heating (1) and multiple tube zone of heating (2), between two adjacent compounds cylinder zone of heating (1) and/or between two adjacent multiple tube zones of heating (2)；
The sidewall of described compound cylinder zone of heating (1) includes the first antirust internal layer (101) and the first electromagnetic eddy heat generating layers (102) from the inside to the outside successively, the outer wall of described first antirust internal layer (101) and the fixing connection of the interior wall seamless of the first electromagnetic eddy heat generating layers (102), the inwall of described first antirust internal layer (101) also forms the cavity (6) for loading heated liquid；
Described multiple tube zone of heating (2) also includes the second antirust internal layer (201) and the second electromagnetic eddy heat generating layers (202) from the inside to the outside successively, the outer wall of described second antirust internal layer (201) and the fixing connection of the interior wall seamless of the second electromagnetic eddy heat generating layers (202), the inwall of described second antirust internal layer (201) also forms the liquid-filled pipe (5) of this multiple tube zone of heating (2)；
Wherein, described control unit at least includes temperature control modules, pressure control module, Liquid level module, pump startup controls one or more combinations in module and scarce liquid protection module, the temperature being completed compound cylinder zone of heating (1) and/or multiple tube zone of heating (2) by temperature control modules is controlled, compound cylinder zone of heating (1) and/or the Stress control of multiple tube zone of heating (2) is completed by pressure control module, compound cylinder zone of heating (1) and/or the Liquid level of multiple tube zone of heating (2) is completed by Liquid level module, complete the start and stop with cavity (6) and/or the pump of liquid-filled pipe (5) physical connection by pump startup control module to manipulate, the liquid level protection that module completes compound cylinder zone of heating (1) and/or multiple tube zone of heating (2) is protected to control by scarce liquid.
2. a kind of electromagnetic vortex heating system according to claim 1, it is characterized in that: between described electromagnetic wire ring layer (3) and multiple tube zone of heating (2), and between described electromagnetic wire ring layer (3) and compound cylinder zone of heating (1), it is equipped with thermal insulation layer (4).
3. a kind of electromagnetic vortex heating system according to claim 1, it is characterised in that: described first antirust internal layer (101) and the second antirust internal layer (201) at least include the one in the antirust internal layer of rustless steel and the antirust internal layer of copper product.
4. a kind of electromagnetic vortex heating system according to claim 1, it is characterised in that: described first electromagnetic eddy heat generating layers (102) and the second electromagnetic eddy heat generating layers (202) at least include the one in carbon steel electromagnetic eddy heat generating layers, silicon steel electromagnetic eddy heat generating layers and graphite electromagnetic eddy heat generating layers.
5. a kind of electromagnetic vortex heating system according to claim 1, it is characterised in that: described second antirust internal layer (201) and the second electromagnetic eddy heat generating layers (202) are light-wall pipe.
6. a kind of electromagnetic vortex heating system according to claim 1, it is characterised in that: the multiple tube in described multiple tube zone of heating (2) forms calandria by coiling, and in this calandria, the outer surface of two adjacent rings multiple tube contacts with each other.
7. a kind of electromagnetic vortex heating system according to claim 1, it is characterized in that: control unit includes multiple controller connected one to one respectively with plurality of electromagnetic eddy heating for heating unit, the plurality of controller concentrated setting in switch board or be distributed in often group electromagnetic eddy heating unit in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610253669.0A CN105783246A (en) | 2016-04-22 | 2016-04-22 | Electromagnetic eddy current heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610253669.0A CN105783246A (en) | 2016-04-22 | 2016-04-22 | Electromagnetic eddy current heating system |
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| CN105783246A true CN105783246A (en) | 2016-07-20 |
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| CN201610253669.0A Pending CN105783246A (en) | 2016-04-22 | 2016-04-22 | Electromagnetic eddy current heating system |
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| CN107246729A (en) * | 2017-07-12 | 2017-10-13 | 张欣翼 | A kind of electromagnetic eddy calandria of cavity body structure |
| WO2019001585A1 (en) * | 2017-06-30 | 2019-01-03 | 杭州三花研究院有限公司 | Electric heater |
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