KR20180111347A - Apparatus for heating liquid - Google Patents

Abstract

According to one embodiment of the present invention, an apparatus for heating a liquid capable of improving heat transfer efficiency comprises: a container storing a liquid; a first electrode provided in the container; a second electrode provided in the container and adjacent to the first electrode to receive the first electrode; a third electrode provided in the container and adjacent to the second electrode to receives the second electrode; at least one dielectric region which is positioned between the first, second, and third electrodes adjacent to each other and in which the liquid is present; and a power unit applying an alternating current voltage to each of the first, second, and third electrodes. By heating the liquid present in the dielectric region, the liquid may generate a state-converted gas.

Description

[0001] APPARATUS FOR HEATING LIQUID [0002]

The present invention relates to a liquid heating apparatus in which a liquid is heated to produce a gas, wherein gas is produced in a dielectric region formed between the plurality of electrodes.

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.

It is an object of the present invention to provide a liquid heating apparatus in which a liquid existing in a dielectric region is heated and converted into a gas.

It is another object of the present invention to provide a liquid heating apparatus in which a liquid present in a dielectric region is uniformly heated and transformed into a gas to shorten a heating time.

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.

It is still another object of the present invention to provide a liquid heating apparatus for heating a large capacity liquid present in a dielectric region with a minimum power through a three-phase power source.

According to an aspect of the present invention, there is provided a liquid heating apparatus including: a container for storing a liquid; a first electrode provided inside the container;

A second electrode disposed within the container and adjacent to the first electrode to receive the first electrode; a third electrode disposed within the container and adjacent to the second electrode to receive the second electrode; Wherein at least one of the first electrode, the second electrode, and the third electrode is disposed between the first electrode, the second electrode, and the third electrode, And a power supply unit for applying a voltage, wherein the liquid present in the dielectric region is heated to generate a state-converted 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 the whole of the liquid may be located inside the liquid.

In an embodiment, the cylindrical image has an open top; And a bottom surface that closes the lower portion.

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 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.

According to another embodiment of the present invention, there is provided a plasma display panel comprising a first electrode portion having at least one first electrode, a second electrode portion having at least one groove corresponding to each of the at least one first electrode, A power supply unit disposed between the electrode unit and the second electrode unit, the power supply unit applying an AC voltage to the first electrode unit and the second electrode unit, and a power supply unit disposed in the at least one groove, Wherein at least one of the at least one groove receives a portion of the dielectric region and the corresponding first electrode and heats the liquid introduced into the dielectric region, The converted gas can be generated.

In an exemplary embodiment, the at least one first electrode may include a cylindrical shape protruding from a body of the first electrode unit.

In an embodiment, the at least one first electrode may be formed of at least one of a linear array and a planar array.

In an exemplary embodiment, the at least one first electrode may include a plate shape protruding from a body of the first electrode unit.

In an embodiment, each of the first electrode and the groove may include at least one of an outer surface of the first electrode and an inner surface of the groove, and at least one of a heat insulating material and an insulator.

In an embodiment, each of the at least one inflow hole may include a region in which the liquid introduces the liquid into the dielectric region, or where ions present in the liquid collide.

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

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, the liquid present in the dielectric region can be uniformly heated and transformed into a gas to shorten the heating time.

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.

According to at least one of the embodiments of the present invention, a large amount of liquid present in the dielectric region can be heated with a minimum power through a three-phase power source.

1 is a cross-sectional view of a liquid heating apparatus according to an embodiment of the present invention.
2A is a perspective view illustrating a first electrode, a second electrode, and a third electrode of a liquid heating apparatus according to an embodiment of the present invention.
2B is a view showing a liquid heating apparatus and a power supply unit according to another embodiment of the present invention.
3 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.
4 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. 5 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.
6 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.
7 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.
8A 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.
8B is a view showing an example of an ion impact region formed in the first and second electrode portions of the liquid heating apparatus according to another embodiment of the present invention.
9 is a view showing a cylindrical first electrode part and a cylindrical second electrode part of a liquid heating device according to another embodiment of the present invention.
10 is a view showing a modified example of the cylindrical first electrode portion and the cylindrical second electrode portion of the liquid heating apparatus according to another embodiment of the present invention.
11 is a view showing a modified example of the cylindrical first electrode portion and the cylindrical second electrode portion of the liquid heating apparatus according to another embodiment of the present invention.
12 is a view showing a heat insulating material and an insulator provided in the first and second electrode portions of 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.

However, it should be understood that various other components may be included in the liquid heating apparatus in the introduction of the characteristic functions according to the present invention in the liquid heating apparatus described below with reference to FIGS. 1 to 12, It is evident to those of ordinary skill in the art.

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

Referring to FIG. 1, a liquid heating apparatus 100 includes a container 110, a first electrode 120, a second electrode 130, a third electrode 140, at least one dielectric region 150, 160 < / RTI >

First, the principle of heating the liquid using the first electrode 120, the second electrode 130, the third electrode 140, and the at least one dielectric region 150 includes a first electrode 120, The dipole constituting the liquid present in the at least one dielectric region 150 is changed in direction according to the alternation of the alternating electric field, and the same vibration as the applied frequency is generated. The generated vibration generates frictional heat of the dipole inside the dielectric, thereby heating the dielectric. 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 the AC voltage is applied to the second electrode 130 and the third electrode 140 The same can occur.

The container 110 may include a supply hole 111 for supplying a liquid into the container 110 and a discharge hole 112 for discharging gas to the outside of the container. The liquid may be pure water or ozonated water, and the gas may be steam or superheated steam.

The supply hole 111 is connected to an external supply unit (not shown) and a supply line (not shown) to allow liquid to flow into the container 110.

At this time, the discharge hole 112 can discharge the gas generated inside the container 110 to the outside of the container 110.

The first electrode 120 may be provided inside the vessel 110 in a cylindrical shape.

The second electrode 130 is provided inside the container 110 in a cylindrical shape and can accommodate the first electrode 120 adjacent to the first electrode 120.

The third electrode 140 is provided inside the container 110 in a cylindrical shape and can accommodate the second electrode 130 adjacent to the second electrode 130.

In other words, the first electrode 120, the second electrode 130, and the third electrode 140 are spaced apart from each other by a certain distance to form a width between the electrodes, and the area (or volume) The first electrode 120 is accommodated in the second electrode 130 and the third electrode 140 having a large area may be disposed to receive the second electrode 130.

At least one dielectric region 150 may be formed between the first electrode 120, the second electrode 130, and the third electrode 140.

Specifically, the at least one dielectric region 150 is a region determined by the width (or spacing distance) between the first electrode 120, the second electrode 130, and the third electrode 140, A first dielectric region 151 may be formed between the electrode 120 and the second electrode 130 and a second dielectric region 152 may be formed between the neighboring second electrode 130 and the third electrode 140. [ May be formed.

At least one of the at least one dielectric region 150 may be a hollow region, and when a liquid exists in the hollow region, the dielectric region 150 may be a heating region for heating the liquid to convert the liquid into a gas.

That is, at least one or more dielectric regions (not shown) may be formed through alternate arrangements such as the first electrode 120 - the first dielectric region 151 - the second electrode 130 - the second dielectric region 152 - the third electrode 140 And at least one dielectric region 150 may be formed between the first electrode 120, the second electrode 130 and the third electrode 140 and the area of each of the first electrode 120, The area of the at least one dielectric region 150 may be reduced or enlarged depending on the width between the electrode 130 and the third electrode 140.

The first electrode 120, the second electrode 130 and the third electrode 140 are provided inside the container 110 and are connected to the first electrode 120 The second electrode 130 and the third electrode 140 may be located within the liquid so that the area of the at least one dielectric region 150 is reduced or enlarged by the level and the capacity of the liquid .

The power source unit 160 includes a first electrode 120, a second electrode 130, and a third electrode 140. The first electrode 120, the second electrode 130, and the third electrode 140 are connected to the power source unit 160, An AC voltage is applied to the third electrode 140. The power supply unit 160 controls the conductivity of the liquid, the area of the first electrode 120, the area of the second electrode 130, the area of the third electrode 140, the area of the dielectric region 150, 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 100 according to the present invention may include a three-phase AC voltage.

In this case, the three-phase power source is connected in series to the first electrode 120, the second electrode 130, and the third electrode 140 to stably supply the three-phase AC voltage.

For example, when the power source unit 160 is a three-phase AC power source, a capacitor set connected to each of the first electrode 120, the second electrode 130, 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.

Particularly, by changing at least one of the magnitude and the frequency of the three-phase AC voltage used in the liquid heating apparatus 100 according to the present invention, the temperature for generating the gas can be controlled, or the power consumption time can be shortened, .

2A is a perspective view illustrating a first electrode, a second electrode, and a third electrode of a liquid heating apparatus according to an embodiment of the present invention.

Referring to FIG. 2A, the first electrode 220, the second electrode 230, and the third electrode 240 of the liquid heating apparatus 200 may be formed into a cylindrical shape having the same center.

The upper portion of each of the first electrode 220, the second electrode 230 and the third electrode 240 provided in a cylindrical shape is opened and a first electrode 220 and a second electrode 230 and the third electrode 240 may include a bottom surface that closes the bottom, and the bottom surface may be a flat surface.

Each of the first electrode 220, the second electrode 230 and the third electrode 240 provided in a cylindrical shape includes a plurality of inflow holes 221 for introducing liquid into the at least one dielectric region 250 , 231, 241).

Here, the plurality of inflow holes 221, 231, and 241 may be regions where ions existing in the liquid collide with each other. More specifically, ions move according to the three-phase power source, and each of the plurality of inflow holes 221, 231, and 241 may 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. 8B.

2B is a view showing a liquid heating apparatus and a power supply unit according to another embodiment of the present invention.

2B, the liquid heating apparatus 200 includes a container 210, a first electrode 220, a second electrode 230, a third electrode 240, at least one dielectric region 250, And a power supply unit 260.

2B, the container 210, the first electrode 220, the second electrode 230, the third electrode 240, the at least one dielectric region 250, and the power source unit 260 are formed in advance The first electrodes 120 and 220, the second electrodes 130 and 230, the third electrodes 140 and 240, the at least one dielectric region 150 and 250, And the plurality of inflow holes 221, 231, and 241 are the same as those described with reference to FIG.

2B, when the power supply unit 260 is configured as a two-phase power supply, the power supply unit 260 may include an AC power supply 261, at least one inductor 262, and a transformer 263.

The alternating voltage 261 is supplied to the first electrode 220, the second electrode 230 and the third electrode 240 by at least one inverter 262 and a transformer 263 with an AC voltage applied thereto.

The first electrode 220 and the third electrode 240 are branched so as to have the same polarity and the second electrode 230 has a polarity different from that of the first electrode 220 and the third electrode 240 .

As a result, the plurality of inflow holes 221, 231 and 241, particularly the second electrode 230, formed on the first electrode 220, the second electrode 230 and the third electrode 240 to which the AC voltage is applied, The collision between the ions occurs in the inflow hole 231 and the generation of gas by the energy generated by the 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.

As shown in FIGS. 1 and 2B, the vessels 110 and 210 are connected to an external supply unit (not shown) and a supply line (not shown) to receive pure water through the supply holes 111 and 211.

The dielectric layers 150 and 250 formed between the first electrodes 120 and 220, the second electrodes 130 and 230 and the third electrodes 140 and 240 provided in the vessels 110 and 210, The inflow hole 241 of the third electrode 140 and the inflow hole 231 of the second electrode 130, The second electrodes 130 and 230 and the third electrodes 140 and 240 and at least one of the first electrodes 120 and 220, The dielectric regions 150 and 250 are partially or completely immersed in pure water.

The power supply 160 connected to the first electrodes 120 and 220, the second electrodes 130 and 230 and the third electrodes 140 and 240 may be connected to the first electrodes 120 and 220, An AC voltage is applied to the second electrodes 130 and 230 and the third electrodes 140 and 240, respectively.

As a result, the first dielectric layers 151 and 251 and the second electrodes 130 and 230 formed between the first electrodes 120 and 220 and the second electrodes 130 and 230 to which the AC voltage is applied, Pure water may be electrolyzed or supplied with energy to be vaporized in the second dielectric regions 152 and 252 formed between the first and second dielectric regions 140 and 240. In addition, the generated heat is transferred to the pure water existing in the dielectric regions 150 and 250, so that the heat transfer area inside the vessels 110 and 210 is enlarged, and the steam can be generated uniformly.

The steam is discharged to the outside through the discharge holes 112 and 212 of the vessels 110 and 210, and can be moved to a nozzle (not shown) for cleaning the substrate.

Particularly, according to the present invention, pure water existing in at least one of the dielectric regions 150 and 250 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.

3 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.

3, the liquid heating apparatus 300 includes a container 310, a first electrode 320, a second electrode 330, a third electrode 340, at least one dielectric region 350, And a power supply unit 360.

3, the container 310, the first electrode 320, the second electrode 330, the third electrode 340, the at least one dielectric region 350, and the power source unit 360 may be formed in advance The first electrodes 120 and 220, the second electrodes 130 and 230, the third electrodes 140 and 240, the at least one dielectric region 150 and 250, (160), so that redundant description will be omitted.

Referring to FIG. 3, the first electrode 320, the second electrode 330, and the third electrode 340 may include a first electrode 320, a second electrode 330, A lower portion of each of the first electrode 320, the second electrode 330, and the third electrode 340 provided in a cylindrical shape may include a bottom surface for closing the lower portion of the first electrode 320, , 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 part of each of the first electrode 320, the second electrode 330 and the third electrode 340, 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 350.

FIG. 4 is a view illustrating an example in which a first electrode, a second electrode, and a third electrode of the liquid heating apparatus according to another embodiment of the present invention are varied. FIG. 5 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.

Referring to FIG. 4, the first electrode 420, the second electrode 430, and the third electrode 440 of the liquid heating apparatus 400 are vertically variable.

4, the first electrode 420, the second electrode 430, the third electrode 440, and the at least one dielectric region 450 are formed on the first electrode (see FIG. 1) The second electrodes 130, 230, 330, the third electrodes 140, 240, 340, and at least one of the dielectric regions 150, 250, 350, Is omitted.

As shown in FIG. 4, the first dielectric region 451 is formed by vertically varying the first electrode 420 and the second electrode 430 by mechanical or electrical operation, and according to the distance between the electrodes, The area or volume of the dielectric region 451 can be varied.

The second dielectric region 452 may be formed by a mechanical or electrical operation of the second electrode 430 and the third electrode 440 so that the second dielectric region 452 The area or volume can be varied.

Referring to FIG. 5, the second electrode 530 of the liquid heating apparatus 500 may be formed to have a second dielectric region 552 which is upwardly deformed relative to the third electrode 540 with respect to the third electrode 540. And the first electrode 520 is upwardly deformed from the second electrode 530 to form the first dielectric region 551.

5, the first electrode 520, the second electrode 530, the third electrode 540, and the at least one dielectric region 550 may be formed on the first electrode (see FIG. 1) 250, 350, 550), the second electrode (130, 230, 330, 430), the third electrode (140, 240, 340, 440) and the at least one dielectric region And therefore duplicate description will be omitted.

5, the area or volume of the first dielectric region 551 and the area or volume of the second dielectric region 552 may be different from the area or volume of the first electrode 520, the second electrode 530, (Or spacing distance) between the bottom surface of the first electrode 520 and the bottom surface of the second electrode 530 and the distance between the bottom surface of the second electrode 530 and the bottom surface of the second electrode 530, And an initial heating region and a heating region in which the area or volume of the at least one dielectric region 550 is varied as the width (or spacing distance) between the bottom surfaces of the three electrodes 540 is widened or narrowed.

6 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.

6, the liquid heating apparatus 600 is configured to measure the distance A between the first electrode 620 and the second electrode 630 in the X-axis direction and the distance A between the second electrode 630 and the third electrode 640 The separation distance A 'is included in the heating region and the distance B between the first electrode 620 and the second electrode 630 in the Y axis direction and the distance B between the second electrode 630 and the third electrode 640, (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 620 and the second electrode unit 630 in the initial heating region and the distance B 'between the second electrode 630 and the third electrode 640 may be determined based on a specific standard Or a distance A between the first electrode 620 and the second electrode 630 in the heating region and a distance A 'between the second electrode 630 and the third electrode 640 .

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.

7 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.

7, at least one or more of the first electrode 720, the second electrode 730, and the third electrode 740 may have a length that is toward the bottom surface of the container 710, 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, the shapes of the first electrode 720, the second electrode 730, and the third electrode 730 of FIG. 7 are different from the shapes of the first electrode 420, the second electrode 430 and the third electrode 440 of FIG. The distance B between the first electrode 720 and the second electrode 730 forming the initial heating region and the distance B between the second electrode 730 and the third electrode 740 As the distance B 'narrows in the longitudinal direction toward the bottom surface of the vessel 710, the area or volume of the dielectric region corresponding to the initial heating region included in the at least one dielectric region 750 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.

8A 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.

Referring to FIG. 8A, it can be seen that the liquid heating apparatus 800 is formed of the first electrode unit 820, the second electrode unit 830, and the power source unit 860.

First, the first electrode unit 820 may include at least one first electrode 821.

The second electrode unit 830 may include at least one groove 831 corresponding to each of the at least one first electrode 821.

At least one of the first electrodes 821 is accommodated in the at least one groove 831 so that a dielectric region in which a liquid exists may be provided between the first electrode portion 820 and the second electrode portion 830 have.

At this time, the liquid present in the dielectric region may be introduced into the dielectric region through at least one inlet hole 832 provided in at least one groove 831.

The power unit 860 is connected to the first electrode unit 820 and the second electrode unit 830 and applies an AC voltage to the first electrode unit 820 and the second electrode unit 830.

As a result, the liquid that has flowed into the dielectric region can be heated to generate a gas in which the liquid changes state.

8B is a view showing an example of an ion impact region formed in the first and second electrode portions of the liquid heating apparatus according to another embodiment of the present invention.

8B, the liquid heating apparatus 800 includes a first electrode unit 820, a first electrode 821, a second electrode unit 830, at least one groove 831, at least one inflow hole 832, a dielectric region 850, and a power source portion 860.

At least one of the grooves 831 may include a dielectric region 850.

The power supply unit 860 may include an alternating-current power supply 861, at least one inductor 862, and a transformer 863.

AC voltage is applied to the first electrode unit 820 and the second electrode unit 830 by the at least one inverter 862 and the transformer 863.

At this time, the first electrode 821 included in the first electrode unit 820 may have the same polarity as that of the first electrode unit 820, and at least one groove (not shown) included in the second electrode unit 830 831 and the at least one inlet hole 832 may have different polarities from that of the first electrode 821.

As shown in FIG. 8B, at least one inlet hole 832 may be a region where liquid enters the dielectric region 850, and may be a region where ions present in the liquid collide. Specifically, ions can move according to the two-phase power source. That is, at least one of the inflow holes 832 may be an area where ions moving due to the influence of different polarities around them collide with each other, and collision between these ions may generate heat.

As a result, collision between ions may occur in the at least one inlet hole 832 by the first electrode portion 820 and the second electrode portion 830 to which an AC voltage is applied, Can be shortened.

FIG. 9 is a view showing a cylindrical first electrode portion and a cylindrical second electrode portion of a liquid heating apparatus according to another embodiment of the present invention, and FIG. 10 is a cross-sectional view of a cylindrical heating device according to another embodiment of the present invention. 11 is a view showing a modified example of the cylindrical first electrode portion and the cylindrical second electrode portion of the liquid heating device according to another embodiment of the present invention. to be.

9 to 11, the liquid heating apparatus 900, 1000, 1100 includes first electrode units 920, 1020, 1120, second electrode units 930, 1030, 1130, and power supply units 960, 1060, 1160).

9 to 11, the first electrode units 920, 1020 and 1120, the second electrode units 930, 1030 and 1130 and the power supply units 960, 1060 and 1160, The first electrode unit 820, the second electrode unit 830, and the power source unit 860 of the first and second electrodes 8a and 8b.

9, the first electrode unit 920 may be formed in a cylindrical shape, and at least one first electrode 921 projecting from the body of the first electrode unit 920 may have a cylindrical shape. And is accommodated in at least one groove 931, and an AC voltage is applied through the power supply unit 960 to heat the liquid.

10, the first electrode unit 1020 may be formed in a cylindrical shape, and at least one first electrode 1021 protruding from the body of the first electrode unit 1020 may be formed in a cylindrical shape, An array and a planar array, is accommodated in at least one groove 1031, and an AC voltage is applied through the power supply unit 1060 to heat the liquid.

11, the first electrode part 1120 may be formed in a cylindrical shape, and at least one first electrode 1121 protruding from the body of the first electrode part 1120 may be formed in a plate shape, And may be accommodated in one or more grooves 1131 to apply an alternating voltage through the power supply unit 1160 to heat the liquid.

As a result, the liquid present in each of at least one of the at least one dielectric regions is heated without any deviation to improve heat transfer efficiency, thereby reducing heat loss, reducing the heating area for generating gas, increasing the heating rate, Time can be shortened.

12 is a view showing a heat insulating material and an insulator provided in the first and second electrode portions of the liquid heating apparatus according to another embodiment of the present invention.

As shown in FIG. 12, the first electrode 1221 may include a protective layer 1222 on the outer surface of the first electrode 1221.

Here, the protective layer 1222 may include at least one of an insulating layer and an insulator.

A groove (not shown) for receiving the first electrode 1221 may also include a protective layer (not shown) formed on the inner surface of a groove (not shown) for receiving the first electrode 1221, . ≪ / RTI >

As a result, the heat discharged to the outside through the heat insulating material can be insulated, and the heating efficiency can be maximized through the insulator.

As a result, the liquid heating apparatus according to the present invention can uniformly heat the liquid present in the dielectric region and change state into a gas, shortening the heating time, and applying an AC voltage to a plurality of electrodes, The temperature to be heated can be kept constant.

Further, the liquid present in the dielectric region can be heated without deviations to improve the heat transfer efficiency, and a large capacity liquid present in the dielectric region can be heated with a minimum power through the three-phase power source.

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 (22)

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; And
And a power supply unit for applying an AC voltage to each of the first electrode, the second electrode, and the third electrode,
Wherein the liquid in the dielectric region is heated to produce 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 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.
The method according to claim 1,
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.
The method according to claim 1,
Wherein each of the first electrode, the second electrode,
And a part or the whole of the liquid is positioned inside the liquid.
The method according to claim 6,
In the cylindrical shape,
An open top; And
And a bottom surface that closes the lower portion.
8. The method of claim 7,
The bottom surface
And a curved surface projecting in a plane or in the downward direction.
The method according to claim 1,
The alternating-
A liquid heating apparatus comprising a three-phase AC voltage.
The method according to claim 1,
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.
The method according to claim 1,
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.
The method according to claim 1,
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.
13. The method of claim 12,
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.
13. The method of claim 12,
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.
The method according to claim 1,
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.
A first electrode unit having at least one first electrode;
A second electrode part having at least one groove corresponding to each of the at least one first electrode;
A dielectric region located between the first electrode portion and the second electrode portion and having a liquid therein;
A power supply unit for applying an AC voltage to the first electrode unit and the second electrode unit; And
At least one inlet hole provided in the at least one groove for introducing the liquid into the dielectric region,
Each of the at least one groove,
Receiving a portion of the dielectric region and the corresponding first electrode,
And the liquid introduced into the dielectric region is heated to generate a state-converted gas.
17. The method of claim 16,
Wherein the at least one first electrode comprises:
And a cylindrical shape protruding from the body of the first electrode portion.
17. The method of claim 16,
Wherein the at least one first electrode comprises:
A linear array, and a planar array.
17. The method of claim 16,
Wherein the at least one first electrode comprises:
And a plate shape protruding from the body of the first electrode portion.
17. The method of claim 16,
Each of the first electrode and the groove,
Wherein at least one of an outer surface of the first electrode and an inner surface of the groove includes a heat insulating material and an insulator.
17. The method of claim 16,
Wherein each of the at least one inflow hole comprises:
Wherein the liquid includes a region in which the liquid is introduced into the dielectric region or in which ions existing in the liquid impinge.
17. The method of claim 16,
The alternating-
Single-phase alternating current,
Wherein the first voltage of the single-
And a second electrode portion,
And a second voltage corresponding to the first voltage,
And the second electrode unit.

Images