CN115682433A - Fluid heating device combining high-frequency resistance heat and induction heat - Google Patents
Fluid heating device combining high-frequency resistance heat and induction heat Download PDFInfo
- Publication number
- CN115682433A CN115682433A CN202211320261.2A CN202211320261A CN115682433A CN 115682433 A CN115682433 A CN 115682433A CN 202211320261 A CN202211320261 A CN 202211320261A CN 115682433 A CN115682433 A CN 115682433A
- Authority
- CN
- China
- Prior art keywords
- heating body
- heating
- frequency
- alternating current
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 308
- 239000012530 fluid Substances 0.000 title claims abstract description 76
- 230000006698 induction Effects 0.000 title claims abstract description 33
- 230000035515 penetration Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 37
- 229910052802 copper Inorganic materials 0.000 description 37
- 239000010949 copper Substances 0.000 description 37
- 238000001816 cooling Methods 0.000 description 32
- 239000003990 capacitor Substances 0.000 description 30
- 239000004020 conductor Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002500 effect on skin Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- General Induction Heating (AREA)
Abstract
The invention discloses a fluid heating device combining high-frequency resistance heat and induction heat, which comprises a heating device for generating alternating frequency f 0 The high-frequency alternating current power supply of (1); and a heating body for configuring a current path; the high-frequency alternating current power supply has two output ends, and the variable frequency output between the two output ends is f 0 Ac power of f 0 Much greater than the mains frequency; the heating body is arranged in a flow channel of the heated fluid; two ends of the heating body are connected with two output ends of the high-frequency alternating current power supply and are kept in electric conduction. Compared with the prior art, the fluid heating device combining high-frequency resistance heat and induction heat provided by the invention has the advantages of simple structure, small volume, long service life, capability of stably working for a long time without burning loss, and convenience in application to wide industrial hot air and industryIn the application field of heating by using hot water, domestic hot water and other fluids.
Description
Technical Field
The invention belongs to the technical field of industrial heating, and particularly relates to a fluid heating device.
Background
In industrial applications and daily life, situations often occur in which a fluid, such as a gas or a liquid, needs to be heated. For example, in the printing industry, liquid ink needs to be heated to a certain temperature level and then sprayed onto coal to form characters or images; the nature of the common household water heaters, heating air heaters, heating and drinking steam machines and the like in daily life is that a certain heating means is adopted to obtain warm fluid with a certain temperature level. The fluid heating process is widely applied to industrial processes such as welding, pharmacy, printing, packaging, cleaning, heat treatment and the like, and daily life scenes such as water boiling, air conditioning, heating and the like.
The fluid heating process needs to be implemented by a correspondingly arranged fluid heater, and in the fluid heater provided in the prior art, a resistance wire is often used as a heating device to provide a heat source for the fluid. Taking chinese patent application No. CN202021988075.2 as an example, in the patent application, a fluid heater is provided, wherein the following are explicitly described: the resistance heating body comprises a resistance wire; the resistance wire is provided with a heating resistance wire and a temperature control resistance wire, and the heating resistance wire comprises a thin resistance wire and a thick resistance wire; a fluid heating vessel comprising a body and a lid; a containing cavity is formed inside the main body and the cover body, a fluid inlet is formed in the cover body, and a fluid outlet is formed in the position, close to the cover body, of the main body; an electric control system including a heat-generating body temperature detection circuit; the resistance heating body is arranged in the accommodating cavity inside the fluid heating container.
In the technical solution described in the above patent, the "heating resistance wire" is the most common and typical implementation form of the fluid heating device in the prior art, and such implementation form is widely used in the prior fluid heating device, after the heating component in the fluid heating device is constructed in the above manner, the heating component will have a certain resistance value R on the electrical plane, in the actual processing process, direct current or power frequency alternating current with a certain current amplitude needs to be introduced into the "heating resistance wire", and the "heating resistance wire" is based on P = I 2 The principle of R can be used to generate heat.
In the prior art, a resistance wire is used as a heating part, and current is introduced into the resistance wire based on P = I 2 When the principle of R generates heat, in order to improve the heating efficiency,the resistance R of the resistance wire or the magnitude of the current I introduced into the resistance wire should be increased as much as possible. And according to a calculation formula of resistance values of the resistance wires: r = ρ l, where ρ is a resistance wire
s
The resistivity, l is the effective length of the resistance wire connected into the circuit, and s is the cross section area of the large connected resistance wire.
It should be pointed out that the above-described method of increasing the current in the resistance wire and increasing the resistance of the resistance wire itself, when applied to a specific fluid heating device, has the obvious drawback: on one hand, increasing the current in the resistance wire provides challenges for the power supply and the performance of the resistance wire, so that not only the power supply equipment needs to output larger current to meet the requirements, but also devices or materials capable of bearing larger current need to be correspondingly configured for the devices and the resistance wire of the power supply equipment, and the manufacturing difficulty and the manufacturing cost of the whole fluid heating device are greatly increased; on the other hand, for increasing the resistance value of the resistance wire applied to the fluid heating device in the prior art, the thin resistance wire with larger resistivity, longer length and smaller wire diameter is usually selected, the thin resistance wire is repeatedly coiled into an expected shape on a die, and after the thin resistance wire is connected into a circuit in a whole section, the resistance wire generates heat.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a fluid heating apparatus, which utilizes the dual thermal effect of resistance heat and induction heat of a conductor in a high frequency alternating current environment to enable the conductor to generate a large amount of heat.
Another object of the present invention is to provide a fluid heating apparatus combining high-frequency resistance heating and induction heating, which has a small volume, a large heat generation amount, a long service life, a low cost, and is suitable for wide popularization.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a fluid heating apparatus combining high frequency resistance heat and induction heat, the heating apparatus comprising:
for generating an alternating frequency of f 0 The high-frequency alternating current power supply of (1);
and a heating body for configuring a current path;
the high-frequency alternating current power supply has two output ends, and the variable frequency output between the two output ends is f 0 Ac power of f 0 Much greater than the mains frequency; the heating body is arranged in a flow channel of the heated fluid; two ends of the heating body are connected with two output ends of the high-frequency alternating current power supply and keep electric conduction.
When the heater is applied to a specific fluid heating scene, the heater is made of a conductor with good conductivity, high resistivity and good heat resistance, and the natural resistance value of the heater is recorded as R dc That is, the heating body will present resistance under DC environment, and the DC resistance value is R dc (ii) a The alternating frequency of the alternating current output between the two output ends of the high-frequency alternating current power supply is f 0 After connecting the two ends of the heating body to a high-frequency alternating current power supply, the alternating frequency is f 0 The alternating current will be applied to the heating body, and the heating body at this moment will show the "alternating current resistance" characteristic completely different from its own natural resistance value due to the skin effect and proximity effect of the alternating current in the conductor 0 The resistance value of the alternating current resistor in the alternating current environment is R ac That is, the heating body is resistive in the electrical layer under the AC environment, and the resistance value of the AC resistor is R ac At this point, there are: r ac ＝R dc (1+γ s +γ p ) In the formula of gamma s Expressing the resistance value change factor of the resistor caused by the current skin effect under the current AC environment, wherein gamma is p Representing the resistance value change factor of the resistor caused by the current proximity effect in the current alternating current environment; gamma ray s And gamma p Are all mixed with f 0 Positive correlation, f 0 The larger, γ s And gamma p Will correspondingly rise.
In the technical scheme provided by the application, a high-frequency alternating current power supply is arranged, and after alternating current output from the high-frequency alternating current power supply is applied to a heating body, on one hand, due to the skin effect and the proximity effect of alternating current, the heating body shows the alternating current resistance characteristic which is obviously larger than the direct current resistance value of the heating body on the electrical level, the higher the alternating frequency of the alternating current output from the high-frequency alternating current power supply is, the larger the alternating current resistance shown by the heating body on the electrical level is, the higher the heating power on the heating body is, the larger the heat productivity is in the same time length, and the higher the heating efficiency of the heating body is; on the other hand, the heating body is made of conductors with good conductivity, high resistivity and good heat resistance, a complete and communicated current path can be constructed after the heating body is connected with a high-frequency alternating current power supply, alternating current is introduced into one section of conductor, it is easy to deduce that an alternating magnetic field is correspondingly generated near the section of conductor, the magnetic fields of the adjacent sections of conductors mutually influence each other, after the magnetic field generated by the previous section of conductor covers the next section of conductor, the magnetic field generated by the previous section of conductor inductively heats the next section of conductor, the heat productivity on the heating body is further increased, and the heat efficiency of the heating body is improved.
Therefore, it can be said that, the heating body is arranged in the flow channel of the heated body, and the high-frequency alternating current power supply is arranged to apply high-frequency alternating current to the heating body, so that on one hand, based on the skin effect and proximity effect of the alternating current, the heating body can show the alternating current resistance characteristic which is obviously greater than the direct current resistance of the heating body, the heating body can show the excellent resistance thermal characteristic on the electrical layer, the heating power is higher, and the heating efficiency is also obviously improved; on the other hand is based on the electromagnetic induction principle, it produces alternating magnetic field to correspond around the heating member that has exerted the alternating current, alternating magnetic field will produce induction heating to the heating member that closes on the district section, the heat that produces on the heating member further increases, so, compare and use slender resistance wire in prior art, rely on the direct current resistance characteristic of resistance wire self to produce resistance heat in order to heat fluid, among the technical scheme who provides in the application of our side, the heating member combines the heat production with high frequency alternating current resistance heat and induction heat, fluid flow through behind the heating member with heating member surface direct contact, fluid molecule and heating member heat exchange, heating efficiency is showing and is promoting.
The heating member that provides in this application, because its principle of generating heat is high frequency alternating current resistance heat and induction heat, the frequency of the output alternating current that promotes high frequency alternating current power supply can effectively promote alternating current resistance heat and induction heat's heat production volume and heat production efficiency, the heating member need not to adopt elongated shape again in order to pursue higher direct current resistance, consequently when specifically setting up, technical staff in the art can select with the cross section great, the coefficient of conductivity is higher, the better conductor of heat resistance is in order to make above-mentioned heating member, need not again to coil with elongated resistance wire repeatedly. And just because the heating member itself makes with the conductor that the cross section is great, the coefficient of conductivity is higher, heat resistance is better, and flow resistance characteristic, the thermal-resisting characteristic when its is used in concrete scene are also stronger, and heating member self structure is more succinct, can be in for a long time not fusing under the high temperature state of generating heat, and the holistic life of this heating device can further prolong, and its stability in specific course of operation also further promotes.
Further, the heating body comprises a first heating body and a second heating body; the first heating body and the second heating body are both arranged in a flow channel of the heated fluid; the first heating body is arranged on one side of the second heating body, one end of the first heating body is connected with one output end of the high-frequency alternating current power supply, the other end of the first heating body is connected with one end of the second heating body, and the other end of the second heating body is connected with the other output end of the high-frequency alternating current power supply. The first and second heaters are sequentially joined in series, so that the dc resistance of the entire heater will be the sum of the dc resistance of the first heater and the dc resistance of the second heater, as described above R ac ＝R dc (1+γ s +γ p ) And the improvement of the direct current resistance value of the heating body overall can help to further improve the alternating current resistance of the heating body overall, so that the heating body overall can obtain larger alternating current resistance, and the fluid heating effect of the heating body can be further improved.
Further, the method can be used for preparing a novel materialThe first heating body is arranged in the magnetic field range of the second heating body. The first heating body is arranged on one side close to the center of the heated fluid flow channel; the second heating body is arranged on the other side far away from the center of the heated fluid flow channel. Arranging the first heating body at one side of the center of the heated fluid flow channel, and keeping the first heating body in the magnetic field range of the second heating body, so that the alternating frequency provided by the high-frequency alternating current power supply is f 0 The alternating current of applying behind first heating member and second heating member, the second heating member will produce alternating magnetic field around it, and this alternating magnetic field will produce the induction vortex on the surface of the first heating member that is in the magnetic field scope, carries out induction heating to first heating member, the temperature of the first heating member surface department of further promotion, when being heated fluid along the runner flow, fluid molecule fully rather than contact, can obtain better fluid heating effect.
Further, the minimum thickness of the cross section of the first heating body is not less than the penetration depth of current on the first heating body under the current alternating current environment; the minimum thickness of the cross section of the second heating body is not less than the penetration depth of the current on the second heating body in the current alternating current environment. If the minimum thickness of the cross section of the first heating body and the minimum thickness of the cross section of the second heating body are respectively equal to the respective penetration depths of the first heating body and the second heating body, under the current alternating current environment, after alternating current output between two output ends of the high-frequency alternating current power supply enters the first heating body and the second heating body, all the cross sections of the first heating body and the second heating body participate in current transmission, and the first heating body and the second heating body are fully utilized. If the minimum thickness of the cross section of the first heating body and the minimum thickness of the cross section of the second heating body are respectively greater than the respective penetration depth, then under the current alternating current environment, after alternating current output between two output ends of the high-frequency alternating current power supply enters the first heating body and the second heating body, the surface layer part participates in current transportation in the first heating body and the second heating body, the current density of the deep layer part is sparse, the heat productivity is not large, at the moment, more functions of structural support and heat conduction are played, the structural stability and the heat resistance of the first heating body and the second heating body are improved, and the first heating body and the second heating body can stably work for a long time without fusing.
The invention has the advantages that: compared with the prior art, the fluid heating device combining high-frequency resistance heat and induction heat provided by the invention has the advantages of simple structure, small volume, long service life, capability of stably working for a long time without burning loss, and convenience for being applied to wide fluid heating application occasions such as industrial hot air, industrial hot water, domestic hot water and the like.
Drawings
Fig. 1 is a schematic circuit diagram of a hot air device combining high-frequency resistance heating and induction heating provided in a first embodiment.
Fig. 2 is a schematic view of a first-view overall structure of a hot air device combining high-frequency resistance heating and induction heating according to a first embodiment.
Fig. 3 is a schematic view of an overall structure of a hot air device combining high-frequency resistance heating and induction heating according to a second view angle in the first embodiment.
Fig. 4 is a cross-sectional view of a hot air device combining high-frequency resistance heating and induction heating provided in a first embodiment.
Fig. 5 is a schematic view of a first-view overall structure of a hot air device combining high-frequency resistance heating and induction heating according to a second embodiment.
Fig. 6 is a schematic view of a second perspective overall structure of the hot air device combining high-frequency resistance heating and induction heating according to the second embodiment.
Fig. 7 is a sectional view of a hot air device combining high-frequency resistance heating and induction heating provided in the second embodiment.
Fig. 8 is a schematic view of a first-view overall structure of a hot air device combining high-frequency resistance heating and induction heating according to a third embodiment.
Fig. 9 is a second perspective structural diagram of a hot air device combining high-frequency resistance heating and induction heating according to a third embodiment.
Fig. 10 is a sectional view of a hot air device combining high-frequency resistance heating and induction heating provided in the third embodiment.
Fig. 11 is a partial structure of two adjacent heating bodies in the hot air device combining high-frequency resistance heating and induction heating provided in the third embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to realize the purpose, the technical scheme of the invention is as follows:
detailed description of the preferred embodiment
Please refer to fig. 1-4.
In this embodiment, there is provided a fluid heating apparatus combining high-frequency resistance heat and induction heat, the apparatus comprising:
for generating an alternating frequency of f 0 A high-frequency ac power supply E for high-frequency ac power;
and, a heating body L for configuring a current path;
the high-frequency AC power supply E has two output terminals, and the variable frequency output between the two output terminals is f 0 AC U ac ，f 0 Much greater than the mains frequency; the heating body L is arranged in a flow channel of the heated fluid; and two ends of the heating body L are connected with two output ends of the high-frequency alternating current power supply and are kept in electric conduction.
Further, in this embodiment, the fluid heating apparatus further includes a resonant capacitor C for engaging with the heating body L to form a resonant structure, and a housing S for restricting the flow direction and the flow range of the fluid, wherein the heating body L and the resonant capacitor C are both disposed inside the housing S, the resonant capacitor C is disposed at a position close to the position where the fluid flows into the housing S, and the heating body L is disposed at a position close to the position where the fluid flows out of the housing S; the resonance capacitor C and the heating body L are respectively connected with the shell S.
Further, in this embodiment, the resonant capacitor C includes at least one capacitor C1, a first water-cooled copper sheet C2, a second water-cooled copper sheet C3, and a water-cooled tube C4; the first water-cooling copper sheet C2 is tightly attached to one pole plate of the capacitor C1 and is communicated with the pole plate, and the second water-cooling copper sheet C3 is tightly attached to the other pole plate of the capacitor C1 and is communicated with the pole plate; the water-cooling pipe C4 is coiled outside the first water-cooling copper sheet C2 and/or the second water-cooling copper sheet C3; the water cooling pipe C4 is connected and communicated with an external cooling water source. Two output ends of the high-frequency alternating current power supply E are respectively connected and conducted with the first water-cooling copper sheet C2 and the second water-cooling copper sheet C3; the first water-cooling copper sheet C2 is also connected with one end of the heating body L and is mutually conducted; the second water-cooling copper sheet C3 is also connected with the other end of the heating body L and is mutually conducted.
Further, in the present embodiment, the heating body L includes a first heating body L1 and a second heating body L2; the first heating body L1 and the second heating body L2 are both arranged in a flow channel of the heated fluid; the first heating body L1 is arranged on one side of the second heating body L2, one end of the first heating body L1 is connected with the first water-cooling copper sheet C2, the other end of the first heating body L1 is connected with one end of the second heating body L2, and the other end of the second heating body L2 is connected with the second water-cooling copper sheet C3.
Further, in the present embodiment, the first heating body L1 is placed in the magnetic field range of the second heating body L2. The first heating body L1 is arranged at one side close to the center of the heated fluid flow channel; the second heating body L2 is disposed on the other side from the center of the heated fluid flow path.
Further, in the present embodiment, the minimum thickness at the cross section of the first heating body L1 is not less than the penetration depth of the current on the first heating body L1 in the current alternating current environment; the minimum thickness of the second heating body L2 at the cross section is also not less than the penetration depth of the current on the second heating body L2 in the present alternating current environment.
Further, in this embodiment, the first heater L1 is extended from a direction close to the capacitor C1 to a direction away from the capacitor C1 and continuously wound in a solenoid shape, and the second heater L2 is extended from a direction away from the capacitor C1 to a direction close to the capacitor C1 and continuously wound in a solenoid shape surrounding the first heater L1.
Further, in the present embodiment, the first heating body L1 and the second heating body L2 are made of a round linear thick conductor with a diameter larger than the penetration depth of the current in the current ac environment.
Detailed description of the preferred embodiment
Please refer to fig. 5-7;
in this embodiment, there is provided a fluid heating apparatus combining high-frequency resistance heat and induction heat, the apparatus comprising:
for generating an alternating frequency of f 0 A high-frequency ac power supply E (not shown) for high-frequency ac power;
and, a heating body L for configuring a current path;
the high-frequency AC power supply E has two output terminals, and the variable frequency output between the two output terminals is f 0 AC U ac ，f 0 Much greater than the mains frequency; the heating body L' is arranged in a flow channel of the heated fluid; two ends of the heating body L' are connected with two output ends of the high-frequency alternating current power supply and keep electric conduction.
Further, in this embodiment, the fluid heating device further includes a resonant capacitor C 'for engaging with the heating body L' to form a resonant structure, the resonant capacitor C 'is disposed at one side of the heating body L', and the resonant capacitor C 'is connected to the heating body L'.
Further, in this embodiment, the resonant capacitor C ' includes at least one capacitor C1 ', a first water-cooled copper sheet C2 ', a second water-cooled copper sheet C3 ', and a water-cooled tube C4 '; the first water-cooling copper sheet C2 'is tightly attached to one pole plate of the capacitor C1' and is communicated with the pole plate, and the second water-cooling copper sheet C3 'is tightly attached to the other pole plate of the capacitor C1' and is communicated with the pole plate; the water-cooled tube C4 ' is coiled outside the first water-cooled copper sheet C2 ' and/or the second water-cooled copper sheet C3 '; the water-cooled tube C4' is communicated with an external cooling water source. Two output ends of a high-frequency alternating current power supply E are respectively connected and conducted with the first water-cooling copper sheet C2 'and the second water-cooling copper sheet C3'; the first water-cooling copper sheet C2 'is also connected with one end of the heating body L' and is mutually communicated; the second water-cooling copper sheet C3 'is also connected with the other end of the heating body L' and is mutually communicated.
The heating body L ' comprises a first heating body L1 ' and a second heating body L2 '; the first heating body L1 'and the second heating body L2' are both arranged in a flow channel of the heated fluid; the first heating body L1 'is arranged on one side of the second heating body L2', one end of the first heating body L1 'is connected with the first water-cooling copper sheet C2', the other end of the first heating body L1 'is connected with one end of the second heating body L2', and the other end of the second heating body L2 'is connected with the second water-cooling copper sheet C3'.
Further, in this embodiment, the first heating body L1 'is placed in the magnetic field range of the second heating body L2'. The first heating body L1' is arranged at one side close to the center of the heated fluid flow channel; the second heating body L2' is arranged at the other side far away from the center of the heated fluid flow channel.
Further, in the present embodiment, the minimum thickness at the cross section of the first heating body L1 'is not less than the penetration depth of the current on the first heating body L1' in the current alternating current environment; the minimum thickness of the cross section of the second heating body L2 'is not less than the penetration depth of the current on the second heating body L2' under the current alternating current environment.
Further, in this embodiment, the first heater L1 ' extends from the capacitor approaching direction to the capacitor separating direction and is continuously wound into a solenoid shape, and the second heater L2 ' extends from the capacitor separating direction to the capacitor approaching direction and is continuously wound into a solenoid shape surrounding the first heater L1 '.
Further, in the present embodiment, the first heating body L1 'and the second heating body L2' are made of a strip-shaped thick conductor with a thickness larger than the penetration depth of current in the current alternating current environment.
Detailed description of the preferred embodiment
Please refer to fig. 8-11.
In this embodiment, there is provided a fluid heating apparatus combining high-frequency resistance heat and induction heat, the apparatus comprising:
for generating an alternating frequency of f 0 A high-frequency ac power supply E (not shown) for high-frequency ac power;
and a heating body L' for constructing a current path;
the high-frequency AC power supply E has two output terminals, and the variable frequency output between the two output terminals is f 0 AC U ac ，f 0 The frequency is far greater than the commercial power frequency; a heating body L' is arranged on the heated flowIn the flow channel of the body; two ends of the heating body L' are connected with two output ends of a high-frequency alternating current power supply and are kept in electric conduction.
Further, in this embodiment, the fluid heating apparatus further comprises a resonance capacitor C ″ for forming a resonance structure by being combined with the heating body L ″, where the resonance capacitor C ″ is disposed at a position close to the inflow of the fluid, and the heating body L ″ is disposed at a position close to the outflow of the fluid; the resonance capacitor C 'is connected with the heating body L'.
Further, in the present embodiment, the resonant capacitor C ″ includes at least one capacitor C1 ″, a first water-cooled copper sheet C2 ″, a second water-cooled copper sheet C3 ″, and a water-cooled tube C4 ″; the first water-cooling copper sheet C2 'is tightly attached to one polar plate of the capacitor C1' and is communicated with the polar plate, and the second water-cooling copper sheet C3 'is tightly attached to the other polar plate of the capacitor C1' and is communicated with the polar plate; the water-cooling pipe C4 ' is coiled outside the first water-cooling copper sheet C2 ' and/or the second water-cooling copper sheet C3 '; the water cooling pipe C4' is communicated with an external cooling water source. Two output ends of the high-frequency alternating current power supply E are respectively connected and conducted with the first water-cooling copper sheet C2 'and the second water-cooling copper sheet C3'; the first water-cooling copper sheet C2 'is also connected with one end of the heating body L' and is mutually communicated; the second water-cooling copper sheet C3 'is also connected with the other end of the heating body L' and is mutually communicated.
The heating body L ' comprises a first heating body L1 ' and a second heating body L2 '; the first heating body L1 'and the second heating body L2' are both arranged in the flow channel of the heated fluid; the first heating body L1 'is arranged at one side of the second heating body L2', one end of the first heating body L1 'is connected with the first water-cooling copper sheet C2', the other end of the first heating body L1 'is connected with one end of the second heating body L2', and the other end of the second heating body L2 'is connected with the second water-cooling copper sheet C3'.
Further, in the present embodiment, the first heating body L1 ″ is disposed within the magnetic field range of the second heating body L2 ″. The first heating body L1' is arranged at one side close to the center of the heated fluid flow channel; the second heating element L2' is arranged on the other side away from the center of the heated fluid flow passage.
Further, in the present embodiment, the minimum thickness at the cross section of the first heating body L1 ″ is not less than the penetration depth of the current on the first heating body L1 ″ under the current alternating current environment; the minimum thickness at the cross section of the second heating body L2 'is not less than the penetration depth of the current on the second heating body L2' under the current alternating current environment.
Further, in the present embodiment, the number of the heating members L ″ is set to be several, and the first heating member L1 ″ and the second heating member L2 ″ of each heating member L ″ are made of a flat strip-shaped linear thick conductor having a thickness greater than the penetration depth of current in the current alternating current environment, in the first heating member L', one end of the first heating member L1 ″ is connected with the first water-cooled copper sheath C2 ″, the second heating member L2 ″ is disposed at the outer side of the first heating member L1 ″ and is parallel to the first heating member L1 ″, the other end of the first heating member L1 ″ is connected and conducted with one end of the second heating member L2 ″ corresponding thereto, the first heating member L1 ″ and the second heating member L2 ″ are enclosed to form a rectangular frame-like structure, and the other end of the second heating member L2 ″ is connected to one end of the first heating member L1 ″ in the next heating member L2 ″, and is connected to the second heating member L3 ″, and is connected to the second heating member L. The plurality of heating bodies L ' keep the respective first heating bodies L1 ' close to the central axis of the heated fluid flow, and the respective second heating bodies L2 ' are gathered into a multi-fin structure with a gathered center on the central axis of the heated fluid.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A fluid heating apparatus combining high-frequency resistance heat and induction heat, the heating apparatus comprising:
for generating an alternating frequency of f 0 The high-frequency alternating current power supply of (1);
and a heating body for constructing a current path;
the high-frequency alternating current power supply is provided with two output ends, and the variable frequency output between the two output ends isf 0 Ac of f 0 Much greater than the mains frequency; the heating body is arranged in a flow channel of the heated fluid; and two ends of the heating body are connected with two output ends of the high-frequency alternating current power supply and are kept in electric conduction.
2. The fluid heating apparatus combining high-frequency resistance heat and induction heat according to claim 1, wherein said heating body includes a first heating body and a second heating body; the first heating body and the second heating body are both arranged in a flow channel of a heated fluid; the first heating body is arranged on one side of the second heating body, one end of the first heating body is connected with one output end of the high-frequency alternating current power supply, the other end of the first heating body is connected with one end of the second heating body, and the other end of the second heating body is connected with the other output end of the high-frequency alternating current power supply.
3. The fluid heating apparatus combining high-frequency resistance heat and induction heat according to claim 2, wherein said first heating body is disposed in a magnetic field range of said second heating body.
4. The fluid heating apparatus combining high-frequency resistance heat and induction heat according to claim 3, wherein said first heating body is provided on a side close to the center of the heated fluid flow path; the second heating body is arranged on the other side far away from the center of the heated fluid flow channel.
5. The fluid heating apparatus combining high-frequency resistance heat and induction heat according to claim 4, wherein the minimum thickness at the cross section of said first heating body is not less than the skin depth of current on said first heating body in the current alternating current environment; the minimum thickness of the second heating body is not less than the penetration depth of current on the first heating body under the current alternating current environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211320261.2A CN115682433A (en) | 2022-10-26 | 2022-10-26 | Fluid heating device combining high-frequency resistance heat and induction heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211320261.2A CN115682433A (en) | 2022-10-26 | 2022-10-26 | Fluid heating device combining high-frequency resistance heat and induction heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115682433A true CN115682433A (en) | 2023-02-03 |
Family
ID=85098382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211320261.2A Pending CN115682433A (en) | 2022-10-26 | 2022-10-26 | Fluid heating device combining high-frequency resistance heat and induction heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115682433A (en) |
-
2022
- 2022-10-26 CN CN202211320261.2A patent/CN115682433A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH05508698A (en) | fluid heating device | |
| CN103442470A (en) | Electromagnetic heating device and heating method for electromagnetic heating device | |
| IL259494A (en) | Apparatus for rapid heating of liquids | |
| JP2013057482A (en) | Induction heating type liquid heater and induction heating type liquid heating apparatus | |
| Kilic et al. | High‐efficiency flow‐through induction heating | |
| CN218480767U (en) | Fluid heating device combining high-frequency resistance heat and induction heat | |
| CN202135350U (en) | Electromagnetic heating device | |
| CN115682433A (en) | Fluid heating device combining high-frequency resistance heat and induction heat | |
| CN205793468U (en) | A kind of electromagnetic heater | |
| US10281138B2 (en) | Electrode water heater | |
| CN109714847A (en) | Intermittent induction thermal reactor | |
| CN207395175U (en) | A kind of foam metal electromagnetic heater | |
| CN202188647U (en) | Super frequency conversion magnetic resistance heating device | |
| CN202947298U (en) | Heating structure of fluid high-frequency heater | |
| CN218480757U (en) | Air heater based on high-frequency resonance structure generates heat | |
| RU86832U1 (en) | FLUID INDUCTION HEATER | |
| CN207395176U (en) | A kind of ring shaped conductor electromagnetic heater | |
| CN100491862C (en) | Skin effect electric water heater | |
| CN208424837U (en) | A kind of new structure rapid cooling induction heater | |
| CN214223421U (en) | High-frequency electromagnetic water heater | |
| CN109640429A (en) | Triangle-triangular form three-phase induction thermal reactor | |
| CN207196903U (en) | Heating component | |
| RU177512U1 (en) | SEPARATED INDIVIDUAL HEATER | |
| CN109579276A (en) | Low temperature cable heats magnetizing assembly | |
| RU13133U1 (en) | TRANSFORMER TYPE ELECTRIC HEATER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |