KR20180111361A - Apparatus for heating liquid - Google Patents

Abstract

According to one embodiment of the present invention, an apparatus for heating a liquid to improve productivity of a gas comprises: a container storing a liquid; one or more first electrodes provided in the container; one or more second electrodes provided in the container and disposed between the first electrodes adjacent to each other; one or more dielectric regions respectively positioned at gaps between the first and second electrodes adjacent to each other and having the liquid therein; and a power unit applying alternating current voltage to one or more first electrodes and one or more second electrodes. The liquid present in the dielectric region is heated to generate a state-converted gas.

Description

[0001] APPARATUS FOR HEATING LIQUID [0002]

The present invention relates to a liquid heating apparatus in which gas is generated in a dielectric region and a non-dielectric region formed between a plurality of electrodes, wherein the liquid is heated to generate a gas.

High frequency induction heating is also called a radio heater, and there are a dielectric heating (induction heating) and an induction heating (induction heating) method.

The dielectric heating is a principle in which the heating body itself generates heat due to the dielectric loss of the insulating material when the insulating material is placed in the high frequency electric field. Induction heating is a self heating phenomenon due to loss of swirling current or hysteresis in the conductor when an electric conductor is placed in the high frequency magnetic field. do.

Generally, an induction heating method using a heating coil used for heating a liquid generates a magnetic field by a current flowing in a heating coil, and generates an overcurrent in the heated member. At this time, in the heating method using a plurality of heating coils, the coils are disposed adjacent to each other in order to prevent temperature decrease at the boundary of each heating coil. Thus, the magnetic field generated by one of the heating coils affects the other heating coils and causes mutual induction between the heating coils.

Such a change in the load variation due to the mutual induction between the heating coils causes a distortion of the current (heating coil current) in each heating coil and causes a phase deviation between the heating coil currents.

Accordingly, in the induction heating system using a plurality of heating coils, when the frequencies of the respective load currents coincide with each other and the phases of the respective heating coil currents are not kept constant, high-precision control of the heating temperature becomes difficult, There is a problem of reducing the temperature.

In order to solve such a problem, a method of inserting a magnetic force interrupting coil between the heating coils and absorbing the magnetic flux at the end of the heating coil has been proposed. However, since the magnetic flux is absorbed by the interrupting coil to decrease the temperature, There is no problem.

The liquid heating apparatus using the plurality of heating coils configured in this way instantaneously heats a large amount of liquid, and since the heat is released only at the position where the heating coil is provided, the heating area is not formed so large that the heating rate of the liquid is limited. have.

In recent years, in order to solve such problems of induction heating, drying and adhesion of wood, vulcanization of rubber, molding of synthetic resin, processing of vinyl, adhesion of vinyl film (high frequency bonding), drying of fibers, processing of agricultural and marine products, (Microwave oven) and the like are being studied.

This is because, even when the insulator having a low thermal conductivity, which is a characteristic of the dielectric heating method, is high in efficiency due to the heat generated by the heated body itself and can be heated at a desired location, It is necessary to develop various technologies of the liquid heating device to reduce the maintenance cost.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid heating apparatus which heats a liquid present in the non-oil-range region and also shortens the time in which the liquid present in the dielectric region is transformed into a gas state.

It is another object of the present invention to provide a liquid heating apparatus for heating a large volume liquid in each of a dielectric region and a non-total area to improve the productivity of the gas.

It is still another object of the present invention to provide a liquid heating apparatus which applies an AC voltage to a plurality of electrodes to maintain a constant temperature at which liquid in a dielectric region is heated.

It is still another object of the present invention to provide a liquid heating apparatus in which liquid present in a dielectric region is heated without deviation to improve heat transfer efficiency.

According to an aspect of the present invention, there is provided a liquid heating apparatus including a container for storing a liquid, at least one first electrode provided in the container, At least one second electrode disposed between the first electrodes, at least one dielectric region located between the first electrode and the second electrode adjacent to each other, the at least one dielectric region in which the liquid exists, A power source for applying an alternating voltage to the at least one first electrode and the at least one second electrode in which the liquid exists, a liquid portion located in at least one of the non-dielectric region and the dielectric region, And a resistance heating section for heating the liquid inside the container, The liquid can generate a state-transformed gas.

In an embodiment, the container may include a supply hole for supplying the liquid to the inside and a discharge hole for discharging the gas to the outside.

In an embodiment, the liquid comprises pure water, and the gas may comprise steam.

In an exemplary embodiment, the at least one first electrode and the at least one second electrode may include a plate shape.

In an exemplary embodiment, the at least one first electrode and the at least one second electrode may include a cylindrical shape having a same center in cross section.

In one embodiment, the first electrode and the second electrode are at least two or more even numbers, and each of the pair of first electrodes and the pair of second electrodes has one semicircular shape separated from a virtual center line, And the other semicircular shape facing the semicircular shape of FIG.

In an embodiment, the alternating voltage may comprise an alternating pulse voltage.

In an embodiment, the alternating voltage is a single-phase alternating current, a first voltage of the single-phase alternating current is applied to the first electrode, and a second voltage corresponding to the first voltage may be applied to the second electrode.

In the embodiment, the power supply unit may vary the magnitude of the AC voltage according to at least one of the conductivity of the liquid, the area of the first electrode, the area of the second electrode, the area of the dielectric region, And frequency can be changed.

In an embodiment, the resistance heating section is provided at least one of the inside of the container and the outside of the container, and can heat the liquid located in at least one of the non-dielectric region and the dielectric region.

The at least one dielectric region may include an initial heating region and a heating region in which the electrical area or volume of the at least one dielectric region is varied depending on a distance between the first electrode and the second electrode, And may include at least one or more.

In an embodiment, the spaced distance between the first electrode and the second electrode of the initial heating region may be less than a specified reference or less than the spaced distance of the first electrode and the second electrode in the heating region have.

At least one of the at least one first electrode and the at least one second electrode may include a shape in which the width of the at least one of the at least one first electrode and the at least one second electrode is narrowed in the longitudinal direction toward the other neighboring electrode.

According to another embodiment of the present invention, there is provided a liquid container comprising a container for storing a liquid, a first electrode provided inside the container, a second electrode provided in the container and adjacent to the first electrode, A third electrode disposed in the container and adjacent to the second electrode to receive the second electrode, a second electrode disposed adjacent to the first electrode, the second electrode and the third electrode adjacent to each other, A power supply unit for applying an AC voltage to each of the first electrode, the second electrode, and the third electrode, the at least one dielectric region being present, the non-dielectric region where the liquid is present among the regions except for the dielectric region, And a resistance heating portion for heating the liquid located in at least one of the region and the dielectric region, It may generate heat to the liquid state conversion gas.

In an embodiment, the container may include a supply hole for supplying the liquid to the inside and a discharge hole for discharging the gas to the outside.

In an embodiment, the liquid comprises pure water, and the gas may comprise steam.

In an embodiment, each of the first electrode, the second electrode, and the third electrode is configured such that the liquid introduces the liquid into the dielectric region, or a plurality of And may include an inflow hole.

In an exemplary embodiment, the area of the first electrode may be smaller than the area of the second electrode, and the area of the second electrode may be smaller than the area of the third electrode.

In an embodiment, each of the first electrode, the second electrode, and the third electrode is a cylindrical shape having the same center, and a part or all of the cylindrical shape may be located inside the liquid.

In an embodiment, the cylindrical shape may include a bottom surface that closes the open top and bottom.

In an embodiment, the bottom surface may comprise a flat surface or a curved surface projecting in the downward direction.

In an embodiment, the alternating voltage may comprise a three-phase alternating voltage.

In one embodiment, the alternating voltage is a single-phase alternating current, a first voltage of the single-phase alternating current is applied to the first electrode and the third electrode, and a second voltage corresponding to the first voltage is applied to the second electrode .

In an embodiment, the power supply unit may include at least one of a conductivity of the liquid, an area of the first electrode, an area of the second electrode, an area of the third electrode, an area of the dielectric region, Accordingly, at least one of the magnitude and frequency of the AC voltage can be changed.

In an embodiment, the resistance heating section is provided at least one of the inside of the container and the outside of the container, and can heat the liquid existing in the non-total area and the at least one dielectric area.

In an embodiment, the at least one dielectric region has an area of the at least one dielectric region, depending on the spaced distance between the first electrode and the second electrode and the spaced distance between the second electrode and the third electrode Or an initial heating region and a heating region, which are formed in a volumetrically variable manner.

In an embodiment, the distance between the bottom surface of the first electrode and the bottom surface of the second electrode in the initial heating region is less than a specified reference, or the distance between the side of the first electrode and the side of the second electrode May be less than the spaced distance.

In an embodiment, the distance between the bottom surface of the second electrode and the bottom surface of the third electrode in the initial heating region is less than a specified reference, or the side surface of the second electrode and the side surface of the third electrode May be less than the spaced distance.

In an embodiment, at least one of the first electrode, the second electrode, and the third electrode may include a shape that becomes narrower in the longitudinal direction toward the bottom surface of the container.

The effect of the liquid heating apparatus according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, it is possible to heat the liquid present in the non-dielectric whole area and shorten the time required for the liquid present in the dielectric area to be transformed into a gas state by heating.

According to at least one of the embodiments of the present invention, the productivity of the gas can be improved by heating the large-volume liquid in each of the dielectric region and the non-total area.

According to at least one of the embodiments of the present invention, an AC voltage is applied to the plurality of electrodes to maintain the temperature at which the liquid in the dielectric region is heated.

According to at least one of the embodiments of the present invention, the liquid present in the dielectric region can be heated without deviation to improve the heat transfer efficiency.

1 is a view showing a principle of heating a dielectric region of a liquid heating apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of a liquid heating apparatus according to an embodiment of the present invention.
3 is a cross-sectional view of a liquid heating apparatus according to another embodiment of the present invention.
4 and 5 are diagrams showing an electrode shape modification of the liquid heating apparatus according to another embodiment of the present invention.
6 is a view showing a first electrode unit and a second electrode unit included in the liquid heating apparatus according to another embodiment of the present invention.
7 and 8 are views showing an initial heating region and a heating region of a liquid heating apparatus according to another embodiment of the present invention.
9 is a view illustrating a second electrode unit having a curved portion of a liquid heating apparatus according to another embodiment of the present invention.
10 is a view showing a modification of the power supply unit in the liquid heating apparatus according to another embodiment of the present invention.
11 is a cross-sectional view of a liquid heating apparatus according to another embodiment of the present invention.
12 is a perspective view illustrating a first electrode, a second electrode, and a third electrode of the liquid heating apparatus according to an embodiment of the present invention.
13 is a view showing a liquid heating apparatus and a power supply unit according to another embodiment of the present invention.
14 is a view showing a modification of the first electrode, the second electrode and the third electrode included in the liquid heating apparatus according to another embodiment of the present invention.
15 is a view showing an example in which the first electrode, the second electrode, and the third electrode of the liquid heating apparatus according to another embodiment of the present invention are varied.
FIG. 16 is a perspective view showing a specific example in which the first electrode and the second electrode are varied in the upward direction with respect to the third electrode of the liquid heating apparatus according to another embodiment of the present invention. FIG.
17 is a view showing an initial heating region and a heating region of a liquid heating apparatus according to another embodiment of the present invention.
18 is a view showing a modified example of the first electrode, the second electrode and the third electrode included in the liquid heating apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It should be understood, however, that the liquid heating apparatus described with reference to FIGS. 1 through 18 below, in introducing the characteristic functions according to the present invention, may include various other components in the liquid heating apparatus, It is evident to those of ordinary skill in the art.

1 is a view showing a principle of heating a dielectric region of a liquid heating apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a liquid heating apparatus 10 includes a dielectric 13 (a heating target) positioned between a first electrode 11 and a second electrode 12.

An AC voltage 14 is applied to the first electrode 11 and the second electrode 12 to change the direction of the dipole constituting the dielectric body 13 in accordance with the alternating AC electric field to change the frequency . At this time, frictional heat of the dipole is generated in the dielectric body 13 by the generated vibration, and the dielectric body 13 is heated. When the frequency and the applied voltage of the AC voltage are increased in this heating principle 10, the vibration of the dipole is accelerated and the heating effect can be enhanced.

2 is a cross-sectional view of a liquid heating apparatus according to an embodiment of the present invention.

2, the liquid heating apparatus 200 includes a container 210, at least one first electrode 220, at least one second electrode 230, a dielectric region 240, a non-dielectric region 250, A power supply unit 260, and a resistance heating unit 270.

First, the container 210 may include a supply hole 211 for supplying a liquid into the container 210 and a discharge hole 212 for discharging gas to the outside of the container 210. The liquid may be pure water or ozonated water, and the gas may be steam.

The supply hole 211 is connected to an external supply unit (not shown) and a supply line (not shown) to allow the liquid to flow into the container 210.

At this time, the discharge hole 212 can discharge the gas generated inside the container 210 to the outside of the container 210.

The first electrodes 220 may be formed in a plate shape within the container 210, and may have a plurality of the first electrodes 220.

The second electrode 230 may be formed in a plate shape within the container 210. When the first electrode 220 includes a plurality of first electrodes 220, a plurality of second electrodes 230 may be disposed between adjacent first electrodes 220.

In other words, the first electrode 220 and the second electrode 230 are spaced apart from each other by a predetermined distance to form a width between the electrodes. Depending on the volume (or area) of the container and the capacity of the liquid stored in the container, (220)? The second electrode 230? The first electrode 220? The electrodes 220 and 230 may be alternately arranged in the order of the second electrode 230.

In addition, a dielectric region 240 may be formed between the first electrode 220 and the second electrode 230.

Specifically, the dielectric region 240 is a region determined by the width of the electrodes, and may be formed between the neighboring first electrode 220 and the second electrode 230.

In addition, the dielectric region 240 may be a hollow region, and when a liquid exists in the hollow region, the dielectric region 240 may be a heating region for heating the liquid to convert the liquid into a gas.

That is, a plurality of dielectric regions 240 are formed through alternate arrangement of the first electrode 220, the dielectric region 240, the second electrode 230, the dielectric region 240, and the first electrode 220 .

The non-dielectric whole area 250 may be a region in the container 210 where the liquid exists in a region excluding the dielectric region 240. [

The power supply unit 260 is connected to the first electrode 220 and the second electrode 230 and applies an AC voltage to the first electrode 220 and the second electrode 230. At least one of the magnitude and the frequency of the AC voltage according to at least one of the liquid conductivity, the area of the first electrode 220, the area of the second electrode 230, and the area of the dielectric area 240 Or more. Here, the frequency of the power supply unit 260 may be in the range of 60 Hz to 2 MHz. An impedance matching circuit (not shown) may be connected between the power supply unit 260 and the electrodes 220 and 230 when the frequency of the power supply unit 260 increases. Particularly, the impedance matching circuit includes a power supply unit 260, And may be connected in series with the electrodes 220 and 230.

The resistance heating portion 270 is provided outside the container 210 and can heat the liquid located in at least one of the dielectric region 240 and the non-dielectric region 250.

At this time, any of the methods for heating the liquid present in at least one of the dielectric region 240 and the non-dielectric whole region 250 can be used. However, May be preferable.

Such an electric heating method may include a direct resistance heating method in which a conductor of a conductor is directly heated by a current, and an indirect resistance heating method in which heat is radiated, convected, or conducted, and direct or indirect arc heating .

In addition, induction heating, which is a high-frequency heating method in which a container of a conductor is directly heated using hysteresis loss and eddy current generated in a container of a conductor placed in a magnetic field by using an alternating magnetic field, And dielectric heating to heat the dielectric using dielectric loss.

A feature of such an electric heating method is that there is no pollution factor such as combustion of fuel and the like, and high temperature can be easily obtained. In addition, the electric heating method can easily control the temperature, can heat the inside of the insulator, can heat in a vacuum or other specific conditions, and can perform local heating.

In addition, the AC voltage used in the liquid heating apparatus 200 according to the present invention may include an AC pulse voltage.

Particularly, by changing at least one of the magnitude and the frequency of the AC voltage used in the liquid heating apparatus 200 according to the present invention, it is possible to control the temperature for generating the gas, shorten the power operation time, Can

In the following description, examples in which the liquid includes pure water and the gas includes steam will be specifically described. However, this is only one example for convenience of explanation, and it will be apparent to those skilled in the art that the liquid and gas according to the present invention are not limited to pure water and steam.

As shown in FIG. 2, the container 210 is connected to an external supply unit (not shown) and a supply line (not shown) to receive pure water through the supply hole 211.

The pure water flows into the dielectric region 240 formed between the first electrode 220 and the second electrode 230 provided in the container 210 and the first electrode 220 and the second electrode 230, The dielectric region 240 is submerged in pure water.

That is, the inside of the container 210 is formed with the dielectric region 240 and the non-dielectric region 250 by the pure water introduced into the container.

The power supply unit 260 connected to the first electrode 220 and the second electrode 230 applies an AC voltage to the first electrode 220 and the second electrode 230 so that the first and second electrodes 220, The pure water is heated, and the resistance heater 270 can heat the pure water existing in the non-dielectric region 240 and the dielectric region 250.

3 is a cross-sectional view of a liquid heating apparatus according to another embodiment of the present invention.

3, the liquid heating apparatus 300 includes a container 310, at least one first electrode 320, at least one second electrode 330, a dielectric region 340, a non-dielectric region 350, A power supply unit 260, and a resistance heating unit 370.

3, at least one of the first electrode 320, the at least one second electrode 330, the dielectric region 340, the non-dielectric whole region 350, the power supply portion 260 And at least one second electrode 230, a dielectric region 240, a dielectric non-dielectric region 250, and a dielectric non-dielectric region 250. The capacitor 210, the at least one first electrode 220, the at least one second electrode 230, The power supply unit 260, and the resistance heating unit 270, the description thereof will be omitted.

The resistance heating unit 370 shown in FIG. 3 is provided outside the vessel 310 and can heat pure water located in at least one of the dielectric region 340 and the non-dielectric whole region 350.

As a result, the liquid heating apparatuses 200 and 300 of the present invention heat the pure water existing in the dielectric regions 240 and 340 and the non-dielectric regions 250 and 350 through the resistance heating portions 270 and 370, Pure water heated through the heating units 270 and 370 may be supplied to the dielectric regions 240 and 340 to improve heat transfer efficiency. Accordingly, the heating speed for generating steam is increased, and the time for generating steam in the dielectric regions 240 and 340 can be shortened.

The steam may be discharged to the outside through the discharge holes 212 and 312 to be moved to a nozzle (not shown) for cleaning the substrate.

4 and 5 are diagrams showing an electrode shape modification of the liquid heating apparatus according to another embodiment of the present invention.

4 and 5, the liquid heating apparatus 400, 500 includes a container 410, 510, at least one first electrode 420, 520, at least one second electrode 430, 530, Regions 440 and 540, non-dielectric whole regions 450 and 550, power supply portions 460 and 560 and resistance heating portions 470 and 570.

At least one of the first electrodes 420 and 520, the at least one second electrode 430 and 530, the dielectric regions 440 and 540, The power supply units 460 and 560 and the resistance heating units 470 and 570 may be formed by the container 210, the at least one first electrode 220, the at least one second The electrode 230, the dielectric region 240, the non-dielectric whole region 250, the power supply portion 260, and the resistance heating portion 270, and thus a duplicate description will be omitted.

Referring to FIG. 4, the first electrode 420 and the second electrode 430 of the liquid heating apparatus 400 may have a cylindrical shape having a center having the same cross section.

5, the liquid heating apparatus 500 includes a first electrode 520 and a second electrode 530 that are at least two even-numbered, and a pair of first electrodes 520 and a pair of second electrodes 530 One semicircular shape spaced apart from the imaginary centerline, and another semicircular shape facing one semicircular shape.

As a result, as the areas of the first electrodes 420 and 520 and the second electrodes 430 and 530 are enlarged, the dielectric regions 440 and 540 can be formed to be wide. Accordingly, as the dielectric regions 440 and 540 are increased, the heating time in which a large amount of liquid is quickly and uniformly heated and converted into a gas is shortened, and as a result, the gas generation amount can be increased.

6 is a view showing a first electrode unit and a second electrode unit included in the liquid heating apparatus according to another embodiment of the present invention.

6, the liquid heating apparatus 600 includes a container 610, a first electrode unit 620, a second electrode unit 630, a dielectric region 640, a non-dielectric whole region 650, a power source unit 660 And a resistance heating unit 670.

6, the container 610, the dielectric region 640, the non-dielectric whole region 650, the power source portion 660, and the resistance heating portion 670 are formed on the upper surface of the container 210, The non-dielectric whole area 250, the power supply unit 260, and the resistance heating unit 270, the description thereof will be omitted.

First, the first electrode unit 620 may be formed in a cylindrical shape, and at least one first electrode 621 may be provided.

The second electrode unit 630 may be formed in a cylindrical shape, and at least one second electrode 631 corresponding to each of the at least one first electrode 621 may be provided.

That is, the first electrode unit 620 and the second electrode unit 630 may include a plurality of at least one first electrode 220 and at least one second electrode 230, 620 and the second electrode unit 630 as shown in FIG.

The at least one first electrode 621 is accommodated in the at least one second electrode 631 so that the dielectric region 640 in which liquid exists between the first electrode portion 620 and the second electrode portion 630 May be provided.

At this time, the area or the volume of the dielectric region 640 varies depending on the distance between the first electrode portion 620 and the second electrode portion 630 by mechanical or electrical operation An initial heating zone and a heating zone to be formed.

7 and 8 are views showing an initial heating region and a heating region of a liquid heating apparatus according to another embodiment of the present invention.

7 and 8, the distance A between the first electrodes 721 and 821 and the second electrodes 731 and 831 in the X-axis direction is included in the heating region, The distance B between the first electrodes 721 and 821 and the second electrode units 730 and 830 is included in the initial heating region. It will be apparent to those skilled in the art, however, that this is only one example for convenience of explanation and that the heating zone and the initial heating zone according to the direction of the present invention are not limited to this example.

The initial heating zone can supply the heated liquid to the heating zone by heating the liquid present in the initial heating zone prior to the heating zone. As a result, the liquid heated in the initial heating region is supplied to the heating region to increase the heating efficiency in the heating region, so that the time during which the state-converted gas is generated can be shortened.

The distance B between the first electrodes 721 and 821 and the second electrode units 730 and 830 in the initial heating region may be less than a predetermined reference or may be less than the predetermined reference or may be less than the predetermined range, And the distance A between the first and second electrodes 731 and 831, respectively.

In addition, the gas having undergone the state transition of the heated liquid in the initial heating region and the heating region is discharged through the discharge holes 822 provided in the first electrode portions 720 and 820. The gas discharged from the discharge holes 722 and 822 provided in the first electrode units 720 and 820 is discharged to the outside through a discharge hole (not shown) provided in a container (not shown).

8, the plurality of first electrodes 821 and the plurality of second electrodes 831 may be formed to have a narrower width in the longitudinal direction toward the neighboring electrodes.

For example, when the distance B between the first electrode 821 and the second electrode 830 in the Y-axis direction is described, the first electrode 821 is connected to the second electrode unit 830, Axis direction toward the Y-axis direction.

As a result, the area or volume of the dielectric region included in the initial heating region is reduced so that the liquid present in the initial heating region can be heated before the liquid present in the heating region.

In other words, the area or volume of the dielectric region corresponding to the initial heating region included in the dielectric region 840 is reduced because the inter-electrode distance B in the initial heating region is shorter than the interelectrode distance A in the heating region .

As a result, the present invention enables a part of the liquid to be heated earlier than the liquid in the other area to raise the heating efficiency.

9 is a view illustrating a second electrode unit having a curved portion of a liquid heating apparatus according to another embodiment of the present invention.

9, the liquid heating apparatus 900 includes a container 910, a first electrode unit 920, at least one first electrode 921, a second electrode unit 930, at least one second electrode 930, A dielectric region 940, a non-dielectric whole region 950, a power source portion 960, and a resistance heating portion 970.

9, at least one of the first electrode 921, the second electrode portion 930, the at least one second electrode 931, the first electrode portion 920, the first electrode portion 920, The dielectric region 940, the non-dielectric whole region 950, the power source portion 960 and the resistance heating portion 970 may be formed by previously forming the container 610, the first electrode portion 620, the at least one first electrode 621 , The second electrode portion 630, the at least one second electrode 631, the dielectric region 640, the non-dielectric whole region 650, the power source portion 660, and the resistance heating portion 670 Duplicate description is omitted.

9, the initial heating region of the liquid heating apparatus 900 may be a region including the distance B between the first electrode 921 and the second electrode portion 930 in the Y-axis direction . In the initial heating region, the second electrode unit 930 may include a U-shaped electrode unit including a curved shape and a second electrode 931 at both ends of the curved shape.

As a result, as compared with the liquid heating apparatus of FIG. 6, the first electrode 921 and the second electrode unit 930 in the Y-axis direction are separated from each other due to the curved shape of the second electrode unit 930 The distance B can be increased. The liquid heating apparatus shown in FIG. 9 includes a first electrode 921 and a second electrode unit 930 having a curved shape of the second electrode unit 930, and the liquid area accommodated between the first electrode 921 and the second electrode unit 930, , The amount of the liquid initially heated by the second electrode portion 930 having a curved shape in the initial heating region can be increased.

6, when the AC voltage is applied to the first electrode 921 and the second electrode 931, the first electrode 921 and the second electrode 931, The arc discharge which can be generated between the curved shapes can be relatively reduced.

In addition, since the first electrode unit 920 and the second electrode unit 930 can be mass-produced through the mold, the manufacturing cost can be reduced.

8, the first electrode 921 may be formed to have a narrower width in the Y-axis direction toward the second electrode unit 930. [

10 is a view showing a modification of the power supply unit in the liquid heating apparatus according to another embodiment of the present invention.

10, the liquid heating apparatus 1000 may include a first electrode unit 1020, a second electrode unit 1030, a dielectric region 1040, and a power source unit 1060.

The power supply section 1060 may include an alternating current power supply 1061, at least one inductor 1062, and a transformer 1063.

AC voltage is applied to the first electrode unit 1020 and the second electrode unit 1030 by the at least one inverter 862 and the transformer 863.

The first electrode 1021 included in the first electrode unit 1020 may have the same polarity as that of the first electrode unit 1020 and the second electrode 1031 included in the second electrode unit 1030 May be provided with a polarity different from that of the first electrode 1021.

As a result, collision between ions may occur in the dielectric region 1040 by the first electrode portion 1020 and the second electrode portion 1030 to which an AC voltage is applied, and the generated energy may generate gas .

11 is a cross-sectional view of a liquid heating apparatus according to another embodiment of the present invention.

11, a liquid heating apparatus 1100 includes a container 1110, a first electrode 1120, a second electrode 1130, a third electrode 1140, at least one dielectric region 1150, An area 1160, a power supply unit 1170, and a resistance heating unit 1180. [

The principle of heating the liquid using the first electrode 1120, the second electrode 1130, the third electrode 1140 and the at least one dielectric region 1150 includes a first electrode 1120, An AC voltage is applied to the dielectric layer 1130 so that the dipole constituting the liquid present in at least one dielectric region 1150 is changed in direction according to the alternation of the AC electric field to generate the same vibration as the applied frequency. The generated vibration generates frictional heat of the dipole inside the dielectric, thereby heating the dielectric. In addition, when the frequency and the applied voltage of the AC voltage are increased, the vibration of the dipole is accelerated and the heating effect can be enhanced. The principle of heating the liquid is that when the AC voltage is applied to the second electrode 1130 and the third electrode 1140 Can occur in the same way.

The container 1110 may include a supply hole 1111 for supplying a liquid into the container 1110 and a discharge hole 1112 for discharging gas to the outside of the container.

The supply hole 1111 is connected to an external supply unit (not shown) and a supply line (not shown) to allow liquid to flow into the container 1110.

At this time, the discharge hole 1112 can discharge the gas generated inside the container 1110 to the outside of the container 1110.

The first electrode 1120 may be provided inside the container 1110 in a cylindrical shape.

The second electrode 1130 is provided inside the container 1110 in a cylindrical shape and can accommodate the first electrode 1120 adjacent to the first electrode 1120.

The third electrode 1140 is provided inside the container 1110 in a cylindrical shape and can accommodate the second electrode 1130 adjacent to the second electrode 1130.

In other words, the first electrode 1120, the second electrode 1130, and the third electrode 1140 are spaced apart from each other by a predetermined distance to form a width between the electrodes, and the area (or volume) The first electrode 1120 is accommodated in the second electrode 1130 and the third electrode 1140 having a large area may be disposed to receive the second electrode 1130.

At least one dielectric region 1150 may be formed between the first electrode 1120, the second electrode 1130, and the third electrode 1140, respectively.

Specifically, the at least one dielectric region 1150 is a region determined by the width (or spacing distance) between the first electrode 1120, the second electrode 1130, and the third electrode 1140, A first dielectric region 1151 may be formed between the electrode 1120 and the second electrode 1130 and a second dielectric region 1152 may be formed between the neighboring second and third electrodes 1130 and 1140. [ May be formed.

The at least one dielectric region 1150 may be a hollow region, and when a liquid exists in the hollow region, the dielectric region 1150 may be a heating region for heating the liquid to transform the liquid into a gas.

In other words, at least one dielectric region (not shown) may be formed through an alternate arrangement such as the first electrode 1120, the first dielectric region 1151, the second electrode 1130, the second dielectric region 1152, and the third electrode 1140 And at least one dielectric region 1150 may be formed between the first electrode 1120, the second electrode 1130 and the third electrode 1140 and the area of each of the first electrode 1120, The area of the at least one dielectric region 1150 may be reduced or enlarged depending on the width between the electrode 1130 and the third electrode 1140.

The first electrode 1120, the second electrode 1130 and the third electrode 1140 may be provided in the container 1110 and may be connected to the first electrode 1120 in accordance with the level or capacity of the liquid stored in the container 1110. [ Some or all of the second electrode 1130 and the third electrode 1140 may be located inside the liquid such that the area of the at least one dielectric region 1150 is reduced or enlarged by the liquid level and the capacity .

The non-dielectric whole area 1160 may be a region in the container 1110 in which liquid exists in a region other than the at least one dielectric region 1150.

The power source unit 1170 is composed of a three-phase power source and is connected to the first electrode 1120, the second electrode 1130 and the third electrode 1140 respectively. The power source unit 1170 includes a first electrode 1120, a second electrode 1130, And an AC voltage is applied to the third electrode 1140. The power supply unit 1160 is connected to the power supply unit 1160 so that the conductivity of the liquid, the area of the first electrode 1120, the area of the second electrode 1130, the area of the third electrode 1140, the area of the dielectric area 1150, The volume and the frequency of the AC voltage according to at least one of the volume of the AC voltage and the volume of the AC voltage.

Also, the AC voltage used in the liquid heating apparatus 1100 according to the present invention may include a three-phase AC voltage.

In this case, the three-phase power source is serially connected to each of the first electrode 1120, the second electrode 1130, and the third electrode 1140 to stably supply the three-phase AC voltage.

For example, when the power supply unit 1170 is a three-phase AC power supply, a capacitor set connected to each of the first electrode 1120, the second electrode 1130, and the third electrode 140 includes three capacitors Cr, Cs, Ct), and the diode pair may be provided with three pairs of diode pairs (D1: D2, D3: D4, D5: D6).

Each of the three capacitors Cr, Cs and Ct may be connected between a diode pair D1 (D2, D3: D4, D5: D6) constituting a capacitor conversion switch, The stabilization resistors Rr, Rs, and Rt may be connected in series between the connection point between the three capacitors Cr, Cs, and Ct and the connection point between the capacitors D3: D4 and D5: D6.

An example of the case where the power source unit described above is a three-phase AC power source is only one example for convenience of explanation, and the capacitor, diode pair, and stabilizing resistance element for describing the power source unit of the present invention are limited to examples of essential configurations Will be apparent to those skilled in the art.

The resistance heating portion 1180 is provided inside or outside the container 1110 and can heat the liquid located in at least one of the dielectric region 1150 and the non-dielectric region 1160. [

Particularly, by changing at least one of the magnitude and the frequency of the three-phase AC voltage used in the liquid heating apparatus 1100 according to the present invention, the temperature for generating the gas can be controlled, or the power consumption time can be shortened, .

The resistance heating portion 1180 also heats the liquid present in the dielectric region 1150 and the non-dielectric region 1160 and the liquid heated through the resistance heating portion 1180 is reheated in the dielectric region 1150 to heat The transmission efficiency can be improved. Accordingly, the heating rate for generating steam is increased, and the time for generating steam in the dielectric region 1150 can be shortened.

12 is a perspective view illustrating a first electrode, a second electrode, and a third electrode of the liquid heating apparatus according to an embodiment of the present invention.

12, each of the first electrode 1220, the second electrode 1230 and the third electrode 1240 of the liquid heating apparatus 1200 may be formed into a cylindrical shape having the same center.

The first electrode 1220, the second electrode 1230, and the third electrode 1240, which are provided in a cylindrical shape, are opened to form a first electrode 1220, a second electrode 1230 and the third electrode 1240 may include a bottom surface that closes the bottom, and the bottom surface may be a flat surface.

Each of the first electrode 1220, the second electrode 1230 and the third electrode 1240 provided in a cylindrical shape includes a plurality of inflow holes 1221 , 1231, 1241).

Here, the plurality of inflow holes 1221, 1231, and 1241 may be regions where ions existing in the liquid collide with each other. Specifically, ions move according to the three-phase power source, and each of the plurality of inflow holes 1221, 1231, and 1241 can generate heat by causing collision between ions in regions where ions collide due to the influence of different electrodes.

As a result, the heating rate of the liquid can be raised by the heat generated by the collision between the ions in the region where the ions impinge.

A specific description of the region where the ions collide will be described later with reference to FIG.

13 is a view showing a liquid heating apparatus and a power supply unit according to another embodiment of the present invention.

13, the liquid heating apparatus 1300 includes a container 1310, a first electrode 1320, a second electrode 1330, a third electrode 1340, at least one dielectric region 1350, A non-oil whole area 1360, a power supply part 1370, and a resistance heating part 1380.

13, the first electrode 1320, the second electrode 1330, the third electrode 1340, the at least one dielectric region 1350, the non-dielectric whole region 1360, The power supply unit 1370 and the resistance heating unit 1380 are formed on the container 1110, the first electrodes 1120 and 1220, the second electrodes 1130 and 1230 and the third electrodes 1140 and 1240 A power source section 1170, a resistance heating section 1180 and a plurality of inflow holes 1221, 1231, and 1241, so that overlapping description will be omitted.

13, when the power supply unit 1370 is configured as a two-phase power supply, the power supply unit 1370 may include an alternating-current power supply 1371, at least one inductor 1372, and a transformer 1373.

The alternating voltage is applied to the first electrode 1320, the second electrode 1330 and the third electrode 1340 by at least one inverter 1372 and a transformer 1373, respectively.

In this case, the first electrode 1320 and the third electrode 1340 are branched so as to have the same polarity, and the second electrode 1330 is branched to have a polarity different from that of the first electrode 1320 and the third electrode 1340 .

As a result, each of the first electrode 1320, the second electrode 1330, and the third electrode 1340 to which the AC voltage is applied has a plurality of inflow holes 1321, 1331, and 1341 formed as shown in FIG. 12, Collision between ions occurs in the inflow hole 1331 of the electrode 1330 and the time for generating gas by the energy generated by such collision can be shortened.

In the following description, examples in which the liquid includes pure water and the gas includes steam will be specifically described. However, this is only one example for convenience of explanation, and it will be apparent to those skilled in the art that the liquid and gas according to the present invention are not limited to pure water and steam.

11 to 13, the containers 1110 and 1310 are connected to an external supply unit (not shown) and a supply line (not shown), and receive pure water through the supply hole 111. [

The dielectric layers 1150 and 1350 formed between the first electrodes 1120 and 1320 and the second electrodes 1130 and 1330 and the third electrodes 1140 and 1340 provided in the vessels 1110 and 1310 form pure water The inflow holes 1221 and 1341 of the third electrodes 1140 and 1340 and the inflow holes 1231 and 1331 of the second electrodes 1130 and 1330 and the inflow holes 1221 and 1321 of the first electrodes 1120 and 1220, The first electrodes 1120 and 1320, the second electrodes 1130 and 1330, the third electrodes 1140 and 1340 and the dielectric regions 1150 and 1350 on at least one side are partially or entirely made of pure water It is locked.

The power source 1170 connected to the first electrodes 1120 and 1320, the second electrodes 1130 and 1330 and the third electrodes 1140 and 1340 is connected to the first electrodes 1120 and 1320 through three- An AC voltage is applied to each of the second electrodes 1130 and 1330 and the third electrodes 1140 and 1340.

As a result, the first dielectric layers 1151 and 1351 and the second electrodes 1130 and 1330 formed between the first electrodes 1120 and 1320 and the second electrodes 1130 and 1330 to which the AC voltage is applied, Pure water may be electrolyzed or supplied with energy and may be vaporized in the second dielectric regions 1152 and 1352 formed between the first and second dielectric regions 1140 and 1340. In addition, the generated heat is transferred to the pure water existing in the dielectric regions 1150 and 1350, so that the heat transfer area inside the vessels 1110 and 1310 is enlarged, and thus steam can be generated uniformly.

The steam may be discharged to the outside through the discharge holes 1112 and 1312 of the vessels 1110 and 1310 and may be moved to a nozzle (not shown) for cleaning the substrate.

Particularly, according to the present invention, pure water present in at least one of the dielectric regions 1150 and 1350 is heated without any deviation to improve heat transfer efficiency, thereby reducing heat loss, increasing the heating rate for generating steam, The time to be generated can be shortened.

14 is a view showing a modification of the first electrode, the second electrode and the third electrode included in the liquid heating apparatus according to another embodiment of the present invention.

14, the liquid heating apparatus 1400 includes a container 1410, a first electrode 1420, a second electrode 1430, a third electrode 1440, at least one dielectric region 1450, A non-dielectric whole area 1460, a power supply part 1470, and a resistance heating part 1480.

14, the first electrode 1420, the second electrode 1430, the third electrode 1440, the at least one dielectric region 1450, the non-dielectric whole region 1460, The power supply unit 1470 and the resistance heating unit 1480 are formed by the containers 1110 and 1310, the first electrodes 1120 and 1320, the second electrodes 1130 and 1330 and the third electrode 1140 1360, 1340, at least one dielectric region 1150, 1350, non-dielectric whole regions 1160, 1360, power supply portions 1170, 1370 and resistance heating portions 1180, 1380, do.

Referring to FIG. 14, the first electrode 1420, the second electrode 1430 and the third electrode 1440 include a first electrode 1420, a second electrode 1430, The upper portion of each of the first electrode 1420 and the second electrode 1440 is opened and the lower portion of each of the first electrode 1420, the second electrode 1430 and the third electrode 1440 provided in a cylindrical shape may include a bottom surface for closing the lower portion , And the bottom surface may be curved (or U-shaped) protruding downward.

As a result, as compared with the liquid heating apparatus of FIG. 1, in the case of the liquid heating apparatus of FIG. 3, the lower portion of each of the first electrode 1420, the second electrode 1430 and the third electrode 1440, May be formed in a curved shape to increase the amount of liquid that is heated by increasing the area or volume of liquid contained in at least one of the dielectric regions 1450.

FIG. 15 is a view illustrating an example in which the first electrode, the second electrode, and the third electrode of the liquid heating apparatus according to another embodiment of the present invention are varied. FIG. 16 is a cross- And the first electrode and the second electrode are varied in an upward direction with respect to the third electrode of the liquid heating device.

15, it can be seen that the first electrode 1520, the second electrode 1530, and the third electrode 1540 of the liquid heating apparatus 1500 are vertically variable.

The first electrode 1520, the second electrode 1530, the third electrode 1540 and the at least one dielectric region 1550 of the structure shown in FIG. 1220, and 1320, the second electrodes 1130, 1230, and 1330, the third electrodes 1140, 1240, and 1340 and the at least one dielectric region 1150, 1250, and 1350, Is omitted.

As shown in FIG. 15, the first dielectric region 1551 is formed by vertically varying the first electrode 1520 and the second electrode 1530 by mechanical or electrical operation, and according to the distance between the electrodes, The area or volume of the dielectric region 1551 can be varied.

The second dielectric region 1552 may be formed by a mechanical or electrical operation of the second electrode 1530 and the third electrode 1540 so that the second dielectric region 1552 The area or volume can be varied.

16, the second electrode 1630 of the liquid heating apparatus 1600 is formed so as to form a second dielectric region 1652 by being upwardly changed from the third electrode 1640 with respect to the third electrode 1640 And the first electrode 1620 is upwardly deformed from the second electrode 1630 to form the first dielectric region 1651.

16, the first electrode 1620, the second electrode 1630, the third electrode 1640, and at least one or more dielectric regions 1650 are formed on the first electrode 1220, 1320, 1420, 1520, second electrodes 1130, 1230, 1330, 1430, 1530, third electrodes 1140, 1240, 1340, 1440, 1540 and at least one dielectric region 1150, 1250 , 1350, 1450, 1550), and redundant description will be omitted.

16, the area or volume of the first dielectric region 1651 and the area or volume of the second dielectric region 1652 are different from the first electrode 1620, the second electrode 1630, (Or spacing distance) between the bottom surface of the first electrode 1620 and the bottom surface of the second electrode 1630 and the distance between the bottom surface of the second electrode 1630 and the bottom surface of the second electrode 1630, An initial heating region and a heating region in which the area or volume of the at least one dielectric region 1650 is variable as the width (or spacing distance) between the bottom surfaces of the three electrodes 1640 becomes wider or narrower.

17 is a view showing an initial heating region and a heating region of a liquid heating apparatus according to another embodiment of the present invention.

17, the liquid heating apparatus 1700 has a distance A between the first electrode 1720 and the second electrode 1730 in the X-axis direction and a distance A between the second electrode 1730 and the third electrode 1740 The separation distance A 'is included in the heating region and the distance B between the first electrode 1720 and the second electrode 1730 in the Y axis direction and the distance B between the second electrode 1730 and the third electrode 1740, (B ') is included in the initial heating region. It will be apparent to those skilled in the art, however, that this is only one example for convenience of explanation and that the heating zone and the initial heating zone according to the direction of the present invention are not limited to this example.

The initial heating zone can supply the heated liquid to the heating zone by heating the liquid present in the initial heating zone prior to the heating zone.

The distance B between the first electrode 1720 and the second electrode portion 1730 in the initial heating region and the distance B 'between the second electrode 1730 and the third electrode 1740 may be determined based on a specific standard Or a distance A between the first electrode 1720 and the second electrode 1730 in the heating region and a distance A 'between the second electrode 1730 and the third electrode 1740 .

As a result, the liquid heated in the initial heating region is supplied to the heating region to increase the heating efficiency in the heating region, so that the time during which the state-converted gas is generated can be shortened.

18 is a view showing a modified example of the first electrode, the second electrode and the third electrode included in the liquid heating apparatus according to another embodiment of the present invention.

18, at least one of the first electrode 1820, the second electrode 1830, and the third electrode 1840 in the liquid heating apparatus 1800 has a length toward the bottom surface of the container 1810 And may have a shape that narrows in the direction of the width.

As a result, the area or volume of the dielectric region included in the initial heating region is reduced so that the liquid present in the initial heating region can be heated before the liquid present in the heating region.

As a result, compared with the shapes of the first electrode 1520, the second electrode 1530 and the third electrode 1540 in FIG. 15, the shapes of the first electrode 1820, the second electrode 1830, The distance B between the first electrode 1820 and the second electrode 1830 forming the initial heating region and the distance B between the second electrode 1830 and the third electrode 1840 As the distance B 'narrows in the longitudinal direction toward the bottom surface of the vessel 1810, the area or volume of the dielectric region corresponding to the initial heating region contained in the at least one dielectric region 1850 is reduced.

Accordingly, the present invention enables a part of the liquid to be heated earlier than the liquid in the other area to raise the heating efficiency.

As a result, the liquid heating apparatus according to the present invention can heat the liquid present in the non-oil-range region and shorten the time required for the liquid present in the dielectric region to change state into a gas, The productivity of the gas can be improved by heating in each of the non-oil whole areas.

In addition, by applying an alternating voltage to the plurality of electrodes, the temperature at which the liquid existing in the dielectric region is heated can be kept constant, and the liquid present in the dielectric region can be heated without deviation to improve the heat transfer efficiency.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims

Accordingly, the foregoing detailed description should not be construed in any way as limiting and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (29)

A container for storing liquid;
At least one first electrode provided in the container;
At least one second electrode provided in the container and disposed between neighboring first electrodes;
At least one dielectric region located between the first and second electrodes adjacent to each other and in which the liquid is present;
A non-dielectric region in which the liquid is present in a region other than the dielectric region;
A power supply unit for applying an AC voltage to the at least one first electrode and the at least one second electrode; And
And a resistance heating section for heating the liquid located in at least one of the non-dielectric whole area and the dielectric area,
Wherein the liquid in the container is heated to generate a state-converted gas.
The method according to claim 1,
The container may include:
A supply hole for supplying the liquid to the inside, and a discharge hole for discharging the gas to the outside.
The method according to claim 1,
The liquid,
Including pure water,
The gas,
A liquid heating apparatus comprising steam.
The method according to claim 1,
Wherein the at least one first electrode and the at least one second electrode are formed on the substrate,
A liquid heating apparatus comprising a plate shape.
The method according to claim 1,
Wherein the at least one first electrode and the at least one second electrode are formed on the substrate,
And a cylindrical shape having the same center in cross section.
The method according to claim 1,
Wherein the first electrode and the second electrode are made of a metal,
At least two or more even numbers,
Wherein each of the pair of first electrodes and the pair of second electrodes comprises:
And one semicircular shape spaced apart from a virtual centerline and another semicircular shape facing the one semicircular shape.
The method according to claim 1,
The alternating-
A liquid heating apparatus comprising an AC pulse voltage.
The method according to claim 1,
The alternating-
Single-phase alternating current,
Wherein the first voltage of the single-
A second electrode,
And a second voltage corresponding to the first voltage,
And the second electrode.
The method according to claim 1,
The power supply unit,
At least one of the magnitude and the frequency of the AC voltage is changed according to at least one of the conductivity of the liquid, the area of the first electrode, the area of the second electrode, the area of the dielectric area, and the volume of the dielectric area .
The method according to claim 1,
The resistance heating unit includes:
And at least one of the inside of the container and the outside of the container heats the liquid located in at least one of the non-total area and the dielectric area.
The method according to claim 1,
Wherein the at least one dielectric region comprises:
And at least one of an initial heating region and a heating region in which an electrical area or a volume of the at least one dielectric region is varied depending on a distance between the first electrode and the second electrode.
12. The method of claim 11,
Wherein the spaced distances between the first electrode and the second electrode in the initial heating region,
Wherein the distance between the first electrode and the second electrode in the heating region is less than a specified reference or less than the distance between the first electrode and the second electrode in the heating region.
12. The method of claim 11,
At least one of the at least one first electrode and the at least one second electrode,
And a shape narrowing in width in the longitudinal direction toward another neighboring electrode.
A container for storing liquid;
A first electrode provided in the container;
A second electrode disposed inside the container and adjacent to the first electrode to receive the first electrode;
A third electrode disposed inside the container and adjacent to the second electrode to receive the second electrode;
At least one dielectric region located between the first electrode, the second electrode and the third electrode which are adjacent to each other and in which the liquid exists;
A non-dielectric region in which the liquid is present in a region other than the dielectric region;
A power supply unit for applying an AC voltage to each of the first electrode, the second electrode, and the third electrode; And
And a resistance heating section for heating the liquid located in at least one of the non-dielectric whole area and the dielectric area,
Wherein the liquid in the container is heated to generate a state-converted gas.
15. The method of claim 14,
The container may include:
A supply hole for supplying the liquid to the inside, and a discharge hole for discharging the gas to the outside.
15. The method of claim 14,
The liquid,
Including pure water,
The gas,
A liquid heating apparatus comprising steam.
15. The method of claim 14,
Wherein each of the first electrode, the second electrode,
Wherein the liquid includes a plurality of inflow holes that flow into the dielectric region or correspond to a region where ions existing in the liquid impinge.
15. The method of claim 14,
The area of the first electrode
An area smaller than the area of the second electrode is formed,
The area of the second electrode
And an area smaller than an area of the third electrode.
15. The method of claim 14,
Wherein each of the first electrode, the second electrode,
And a part or the whole of the liquid is positioned inside the liquid.
20. The method of claim 19,
In the cylindrical shape,
An open top; And
And a bottom surface that closes the lower portion.
21. The method of claim 20,
The bottom surface
And a curved surface projecting in a plane or in the downward direction.
15. The method of claim 14,
The alternating-
A liquid heating apparatus comprising a three-phase AC voltage.
15. The method of claim 14,
The alternating-
Single-phase alternating current,
Wherein the first voltage of the single-
A first electrode, and a third electrode,
And a second voltage corresponding to the first voltage,
And the second electrode.
15. The method of claim 14,
The power supply unit,
The magnitude of the AC voltage and the magnitude of the AC voltage according to at least one of the conductivity of the liquid, the area of the first electrode, the area of the second electrode, the area of the third electrode, the area of the dielectric area, Frequency of the liquid.
15. The method of claim 14,
The resistance heating unit includes:
And at least one of the inside of the container and the outside of the container heats the liquid existing in the non-total area and the at least one dielectric area.
15. The method of claim 14,
Wherein the at least one dielectric region comprises:
An initial heating region in which an area or volume of the at least one dielectric region is varied according to a distance between the first electrode and the second electrode and a distance between the second electrode and the third electrode, And at least one of the regions.
27. The method of claim 26,
Wherein a distance between a bottom surface of the first electrode and a bottom surface of the second electrode in the initial heating region,
Wherein a side of the first electrode and a side of the second electrode of the heating region are smaller than a specified distance.
27. The method of claim 26,
Wherein a distance between the bottom surface of the second electrode and the bottom surface of the third electrode in the initial heating region,
And the side surface of the second electrode and the side surface of the third electrode of the heating region are smaller than the spaced distance.
15. The method of claim 14,
Wherein at least one of the first electrode, the second electrode,
And a shape that narrows in the longitudinal direction toward the bottom surface of the container.

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