KR102053491B1 - Apparatus for heating liquid - Google Patents

Abstract

Liquid heating apparatus according to an embodiment of the present invention is a container for storing a liquid, a first electrode provided in the container, is provided in the container, the first electrode adjacent to the first electrode to receive the first electrode A first power supply unit positioned between a second electrode, adjacent first and second electrodes, and applying a first AC voltage to a dielectric region in which the liquid is present, the first electrode, and the second electrode; And a second power supply unit applying a second AC voltage or a DC voltage to the first electrode and the second electrode, and decomposing or heating the liquid existing in the container to generate a gas in which the liquid is converted into a state. have.

Description

Liquid Heating Device {APPARATUS FOR HEATING LIQUID}

The present invention relates to a liquid heating device, and relates to a liquid heating device for generating a gas by decomposing and heating a liquid using a plurality of power supply units.

High frequency induction heating, also known as radio heater (radio heater), there are dielectric heating (誘 電 加熱) and induction heating (誘導 加熱) method.

Dielectric heating is the principle that the heating element itself generates heat when the insulation is placed in the high frequency electric field.Induction heating is self-heating because of the loss of eddy current or hysteresis generated in the conductor when the electrical conductor is placed in the high frequency magnetic field. do.

In general, an induction heating method using a heating coil used to heat a liquid generates a magnetic field due to a current flowing in the heating coil, thereby generating an overcurrent in the member to be heated. In this case, in the heating method using a plurality of heating coils, coils are disposed adjacent to each other to prevent a temperature decrease at the boundary of each heating coil. Therefore, the magnetic field generated by one of the heating coils affects the other heating coils and generates mutual induction of the heating coils.

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

Accordingly, in the induction heating method using a plurality of heating coils, when the frequencies of the respective load currents match and the phases of the respective heating coil currents are not kept constant, high precision control of the heating temperature becomes difficult and the boundary of the heating coils becomes difficult. There is a problem of reducing the temperature.

In order to solve this problem, a method of inserting a magnetic force blocking coil between heating coils and absorbing magnetic flux at the end of the heating coil has been proposed, but the magnetic flux is absorbed by the blocking coil to reduce the temperature so that the liquid is not heated uniformly. There is a problem.

The liquid heating apparatus using a plurality of heating coils configured as described above has a disadvantage in that the heating speed of the liquid is limited because the heating area is not formed largely because heat is emitted only at the position where the heating coil is provided. have.

In particular, recently, in order to solve the problem of induction heating, drying and bonding of wood, vulcanization of rubber, molding and processing of synthetic resin, adhesion of vinyl film (high frequency adhesion), drying of textiles, processing of agricultural and aquatic products, insecticide, sterilization or food Research on dielectric heating using electrodes applied to cooking (microwave oven), etc., is underway.

This is characterized by the fact that even if the insulator with low thermal conductivity, which is a characteristic of the dielectric heating method, is heated, the efficiency of the heating element itself is high and it can be heated where necessary. It is necessary to develop various technologies of liquid heating device to minimize the cost and to reduce maintenance costs.

It is an object of the present invention to provide a liquid heating device for heating a liquid present in a dielectric region and converting it into a gas.

Another object of the present invention to provide a liquid heating device for improving the water quality of the liquid through decomposition using an alternating voltage.

Still another object of the present invention is to provide a liquid heating device which improves sterilization and cleaning power of a liquid by decomposition using a DC voltage.

In order to solve the above technical problem, the liquid heating device according to an embodiment of the present invention is a container for storing a liquid, a first electrode provided in the container, provided in the container, and the first electrode and A second alternating current between the second electrode adjacent to receive the first electrode, the first electrode adjacent to each other and the second electrode, and a dielectric region in which the liquid is present, the first electrode, and the second electrode; A first power supply unit applying a voltage and a second power supply unit applying a second AC voltage or a DC voltage to the first electrode and the second electrode, and decomposing or heating the liquid present in the container The liquid may produce a gas that is state converted.

In example embodiments, the dielectric region may include at least one of an initial heating region and a heating region that are formed by varying an electrical area or volume of the dielectric region according to a spaced distance between the first electrode and the second electrode. can do.

In example embodiments, a distance between the first electrode and the second electrode in the initial heating region may be smaller than a specific reference or less than a distance between the first electrode and the second electrode in the heating region. have.

In an embodiment, the first electrode may have a shape in which the width thereof is narrowed in the longitudinal direction toward another neighboring electrode.

In another embodiment, a first AC voltage is applied to a container for storing a liquid, a first dielectric heating part provided in the container, a second dielectric heating part provided in the container, and the first dielectric heating part. A first power supply unit and a second power supply unit for applying a second AC voltage or a DC voltage to the second dielectric heating unit, wherein the first dielectric heating unit is provided with a first electrode provided inside the container and inside the container; And a second electrode adjacent to the first electrode to receive the first electrode, and a first dielectric region disposed between the first electrode and the second electrode adjacent to each other and in which the liquid is present. The second dielectric heating unit includes a third electrode provided inside the container, a fourth electrode provided inside the container, adjacent to the third electrode to receive the third electrode, and the third neighboring each other. Located between the electrode and the fourth electrode, and includes a second dielectric region in which the liquid is present may decompose or heat the liquid present in the vessel to produce a gas in which the liquid is state-transformed.

In another embodiment, the container for storing the liquid, at least one first electrode provided in the container, at least one second electrode provided in the container, disposed between the neighboring first electrode And a first alternating current voltage disposed between each of the first and second electrodes adjacent to each other and applying a first alternating voltage to at least one dielectric region in which the liquid is present, the at least one first electrode, and the at least one second electrode. A first power supply unit for applying and a second power supply unit for applying a second alternating voltage or a direct current voltage to the at least one or more first electrodes and the at least one or more second electrodes, and decomposing the liquid present in the container; or Heating may produce a gas in which the liquid is state converted.

In at least one example embodiment, the at least one first electrode and the at least one second electrode may have a plate shape.

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

In an 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 is one semicircular shape and the one spaced apart from an imaginary center line. It may include another semicircle shape facing the semicircle shape of.

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 may include pure water, and the gas may include steam.

In an embodiment, the first AC voltage may include an AC pulse voltage.

In example embodiments, the first AC voltage may be a single phase AC, a first voltage of the single phase AC may be applied to the first electrode, and a second voltage corresponding to the first voltage may be applied to the second electrode. have.

The first power supply unit may include the first power supply unit according to at least one of conductivity of the liquid, an area of the first electrode, an area of the second electrode, an area of the dielectric region, and a volume of the dielectric region. The liquid can be heated by changing the frequency of the AC voltage from 0 Hz to 100 Hz.

In an embodiment, the second power supply unit may include a DC voltage generator and an AC voltage generator, and change the frequency of the second AC voltage to 1000 Hz to 10000 Hz through the AC voltage generator, and change the liquid through the DC voltage generator. Can be disassembled.

In example embodiments, the DC voltage generator may turn on / off the supply of the DC voltage through a three-phase power supply and a first switch unit, and the AC voltage generator may supply the three-phase power supply, a plurality of transistors, and a filter. Through the matching network and the second switch unit, the positive (+) polarity and the negative (-) polarity may be alternately output.

Referring to the effect of the liquid heating apparatus according to the present invention.

According to at least one of the embodiments of the present invention, it is possible to heat the liquid present in the dielectric region to convert the state into a gas, and to shorten the heating time during which the liquid is uniformly heated in the dielectric region to convert it into a gas.

According to at least one of the embodiments of the present invention, the water quality of the liquid may be improved by decomposition using an AC voltage.

According to at least one of the embodiments of the present invention, it is possible to improve the sterilizing power and the cleaning power of the liquid through decomposition using a DC voltage.

1 is a view showing in detail the cross section of the liquid heating apparatus according to an embodiment of the present invention.
2 is a view showing an example in which the first electrode and the second electrode of the liquid heating apparatus according to another embodiment of the present invention is variable.
3 is a view showing a modified example of the first electrode and the second electrode of the liquid heating apparatus according to another embodiment of the present invention.
4 is a view showing a liquid heating apparatus according to another embodiment of the present invention.
5 is a view showing a liquid heating apparatus according to another embodiment of the present invention.
6 is a view showing a liquid heating apparatus according to another embodiment of the present invention.
7 is a view showing a liquid heating apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

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

However, in the liquid heating apparatus described through FIGS. 1 to 7 below, in introducing the characteristic functions according to the present invention, various components may be included in the liquid heating apparatus. It is self-evident for those of ordinary skill in Esau.

1 is a view showing in detail the cross section of the liquid heating apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the liquid heating device 100 includes a container 110, a first electrode 120, a second electrode 130, a dielectric region 140, a first power source 150, and a second power source 160. It may include.

First, a principle of heating a liquid using the first electrode 120, the second electrode 130, and the dielectric region 140 is that an AC voltage is applied to the first electrode 120 and the second electrode 130. The dipoles constituting the liquid present in the dielectric region 140 change in accordance with the alternating current of the alternating electric field, causing vibrations equal to the applied frequency.

At this time, the friction heat of the dipole is generated inside the dielectric region 140 to heat the liquid. In this case, the higher the frequency and the applied voltage of the AC voltage, the faster the vibration of the dipoles generated in the dielectric region 140 may increase the heating effect.

The container 110 is a supply hole 111 for supplying a liquid into the container 110 and

It may include a discharge hole 112 for discharging the gas to the outside of the container. Wherein the liquid may be pure and ultrapure water, the gas may be steam or superheated steam.

In addition, the supply hole 111 may be connected to an external supply part (not shown) and a supply line (not shown) to introduce liquid into the container 110.

The first electrode 120 may be provided in the container 110, and the upper portion of the first electrode 120 may be opened, and the lower portion of the first electrode 120 may include a bottom surface.

In addition, the bottom surface of the first electrode 120 may have a curved shape (or U-shape) protruding downward, and may have a cylindrical shape including the same.

The second electrode 130 may be provided in the container 110 and may be adjacent to the first electrode 120 to accommodate the first electrode 120.

In this case, the second electrode 130 may be provided inside the container 110, and an upper portion of the second electrode 130 may be opened and a lower portion of the second electrode 130 may be closed. .

In addition, the bottom surface of the second electrode 130 may have a curved shape (or U-shape) protruding downward, and may have a cylindrical shape including the same.

In other words, each of the first electrode 120 and the second electrode 130 is spaced apart from each other at regular intervals to form a width between the electrodes, and the first electrode 120 having a small area according to the area (or volume) of the electrode May be received and disposed in the second electrode 130.

The dielectric region 140 may be formed between the first electrode 120 and the second electrode 130.

Specifically, the dielectric region 140 is a region determined by the width (or separation distance) between the first electrode 120 and the second electrode 130, and the first electrode 120 and the second electrode 130 neighboring each other. The dielectric region 140 may be formed between the layers.

The dielectric region 140 may be a hollow region, and when liquid is present in the hollow region, the dielectric region 140 may be a heating region for heating the liquid and converting the state into a gas, thereby improving the quality of the liquid. It may be a decomposition zone.

The dielectric region 140 decreases or enlarges the area of the dielectric region 140 according to the area of the first electrode 120 and the second electrode 130 and the width between the first electrode 120 and the second electrode 130. Can be.

In addition, the first electrode 120 and the second electrode 130 are provided inside the container 110, and according to the level or capacity of the liquid stored in the container 110, the first electrode 120 and the second electrode ( Some or all of 130 may be located inside the liquid, such that the area of dielectric region 140 may be reduced or enlarged by the liquid level and capacity.

Although not shown in the drawing, the first electrode (not shown) is arranged through an arrangement in which an electrode having a relatively large area accommodates an electrode having a small area, such as the first electrode 120-the dielectric region 140-the second electrode 130. ) A first dielectric region (not shown)-a second electrode (not shown)-a second dielectric region (not shown)-at least one dielectric region is formed in the liquid heating device disposed together with the third electrode (not shown) Can be.

The first power supply unit 150 is connected to each of the first electrode 120 and the second electrode 130, and applies a first AC voltage to the first electrode 120 and the second electrode 130. The first power supply unit 150 may have a magnitude of the first AC voltage according to at least one of liquid conductivity, an area of the first electrode 120, an area of the second electrode 130, and an area of the dielectric region 140. Can be changed or the frequency can be changed from 0 Hz to 100 Hz to heat the liquid.

In addition, the first AC voltage applied from the first power supply unit 150 may include an AC pulse voltage, and may include single phase AC.

In this case, the first power supply unit 150 may include a third switch unit 151, and the third switch unit 151 may include at least two switches.

The third switch unit 151 may be connected to the first electrode 120 to apply a first voltage of single phase exchange to the first electrode 120, and may be connected to the second electrode 130 to provide a single phase exchange. The second voltage may be applied to the second electrode 130.

Thus, the single phase AC voltage supplied from the first power supply unit 150 may be transmitted to the first electrode 120 and the second electrode 130 according to the operation of the third switch unit 151.

The second power supply unit 160 is connected to each of the first electrode 120 and the second electrode 130, and applies a second AC voltage or DC voltage to the first electrode 120 and the second electrode 130.

In addition, the second power supply unit 160 may include a DC voltage generator 161, a first switch unit 162, an AC voltage generator 163, and a second switch unit 164.

The DC voltage generator 161 may decompose the liquid and may turn on / off the supply of the DC voltage through the three-phase power source and the first switch unit 162.

The AC voltage generator 163 may output an AC voltage by alternating a positive (+) polarity and a negative (−) polarity through a three-phase power source, a plurality of transistors, a filter, a matching network, and a second switch unit 164. The frequency of the second AC voltage may be changed to 1,000 Hz to 10,000 Hz. In addition, the second AC voltage applied from the AC voltage 163 may include an AC pulse voltage, and may include single phase AC.

The first switch unit 161 may be connected to the first electrode 120 or the second electrode 130 to apply a DC voltage to the first electrode 120 or the second electrode 130.

The second switch unit 164 may be connected to the first electrode 120 to apply a second voltage of single phase exchange to the first electrode 120, and may be connected to the second electrode 130 to provide a single phase exchange. The second voltage may be applied to the second electrode 130.

Thus, the DC voltage and the second AC voltage supplied from the second power supply unit 160 are controlled by the first switch unit 162 and the second switch unit 164 according to the operation of the first electrode 120 and the second electrode 130. ) Can be delivered.

In the following description, an example in which the liquid contains pure water and the gas contains steam will be described in detail. However, this is only one example for convenience of description, 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.

Referring to FIG. 1, the container 110 is connected to an external supply unit (not shown) and a supply line (not shown) to receive pure water.

In addition, pure water flows between the first electrode 120 and the second electrode 130 provided in the container 110, and according to the level of the pure water introduced into the container 110, the first electrode 120 and Part or all of the second electrode 130 is immersed in pure water.

Each process is performed by applying a first AC voltage, a second AC voltage, and a DC voltage in the container by using pure water stored in the container.

When a first AC voltage is applied, the first power supply unit 150 is connected to each of the first electrode 120 and the second electrode 130, and the first electrode 120 and the second electrode 130 are connected to each other. Pure water is heated by applying an AC voltage to generate steam.

In this case, the frequency of the first AC voltage may be 0 Hz to 100 Hz.

In addition, when the second AC voltage is applied, the AC voltage generator 163 of the second power supply unit 160 is connected to each of the first electrode 120 and the second electrode 130, and the first electrode 120 and the first electrode 120. By applying a second alternating voltage to the second electrode 130, the redox potential of the pure water is lowered, and the water quality of the pure water is improved by promoting the aggregation, precipitation, and flotation of organic and inorganic substances contaminating the pure water.

In this case, the frequency of the second AC voltage may be 1,000 Hz to 10,000 Hz.

In addition, when a DC voltage is applied, the DC voltage generator 161 of the second power supply unit 160 is connected to each of the first electrode 120 or the second electrode 130, and the first electrode 120 or the second electrode. DC voltage is applied to the electrode 130 to convert pure water into electrolytic water.

At this time, the electrolyzed water may be generated through decomposition of pure water.

As a result, by changing at least one or more of the characteristics and the frequency of the voltage of the first power supply unit 150 and the second power supply unit 160 used in the liquid heating device 100 according to the present invention, by using a low frequency AC voltage It is possible to control the temperature to generate, or to reduce the power consumption by shortening the power operation time, by using a DC voltage can decompose pure water to generate electrolytic water suitable for sterilization and cleaning.

In addition, it is possible to improve the water quality of the pure water stored in the container by using a high frequency alternating current.

2 is a view showing an example in which the first electrode and the second electrode of the liquid heating apparatus according to another embodiment of the present invention is variable.

Referring to FIG. 2, it can be seen that each of the first electrode 220 and the second electrode 230 of the liquid heating device 200 is changed up and down.

Meanwhile, in the configuration illustrated in FIG. 2, the first electrode 220, the second electrode 230, and the dielectric region 240 are the first electrode 120, the second electrode 130, and the dielectric region ( As described above, duplicate description is omitted.

As illustrated in FIG. 2, the dielectric region 240 may have a dielectric region 240 according to a distance between the first electrode 120 and the second electrode 230, which is vertically changed by a mechanical or electrical operation so that the electrodes are spaced apart from each other. ) Area or volume may vary.

Referring to FIG. 2, the area or volume of the dielectric region 240 is varied in the upward or downward direction of each of the first electrode 220 and the second electrode 230, and the dielectric region 240 is formed of the first electrode 220. Including the initial heating area and the heating area formed by varying the area or volume of the dielectric region 240 as the width (or separation distance) between the bottom surface of the bottom electrode and the bottom surface of the second electrode 230 is widened or narrowed. Can be.

The liquid heating device 200 has a first separation distance A between the second electrode 230 and the first electrode 220 and a second separation distance A between the first electrode 220 and the second electrode in the X-axis direction. ') Is included in the heating zone, and the separation distance B between the first electrode 220 and the second electrode 230 in the Y-axis direction will be described in detail as an example included in the initial heating zone. However, this is only one example for convenience of description, and it will be apparent to those skilled in the art that the heating zone and the initial heating zone according to the direction of the present invention are not limited to these examples.

The initial heating zone may supply the liquid that is heated to the heating zone by heating the liquid present in the initial heating zone before the heating zone.

In this case, the separation distance B between the first electrode 220 and the second electrode 230 in the initial heating region is smaller than a specific reference or the first electrode 220 and the second electrode 230 in the heating region. It may be less than the first separation distance (A) and the second separation distance (A ') of the first electrode 220 and the second electrode.

As a result, the liquid heated in the initial heating zone is supplied to the heating zone to increase the heating efficiency in the heating zone, whereby the time for generating the state-converted gas can be shortened.

3 is a view showing a modified example of the first electrode and the second electrode of the liquid heating apparatus according to another embodiment of the present invention.

Referring to FIG. 3, the liquid heating device 300 may confirm that the first electrode 320 is narrow in the length direction toward the neighboring electrode.

Meanwhile, in the configuration illustrated in FIG. 3, the first electrode 320, the second electrode 330, and the dielectric region 340 are the first electrode 120, the second electrode 130, and the dielectric region ( As described above, duplicate description is omitted.

As shown in FIG. 3, the first electrode 320 may include a shape in which the width of the first electrode 320 becomes narrow in the longitudinal direction toward the neighboring second electrode 330, thereby reducing the width of the dielectric region included in the initial heating region. As the area or volume is reduced, the liquid present in the initial heating zone may be heated before the liquid present in the heating zone.

As a result, in the case of the shape of the first electrode 320 and the second electrode 330 of FIG. 3 as compared with the shape of the first electrode 220 and the second electrode 230 of FIG. The distance B between the first electrode 320 and the second electrode 330 becomes narrower in the length direction toward which the first electrode 320 is adjacent to another electrode, thereby being included in the dielectric region 340. The area or volume of the dielectric region corresponding to the heating region is reduced.

Accordingly, the present invention can increase the heating efficiency by heating a part of the liquid before the liquid in the other region.

4 is a view showing a liquid heating apparatus according to another embodiment of the present invention.

Referring to FIG. 4, the liquid heating device 400 may include a container 410, a first dielectric heating unit 420, a second dielectric heating unit 430, a first power supply unit 440, and a second power supply unit 450. It may include.

As shown in FIG. 4, the container 410 may include a supply hole 411 for supplying a liquid into the container 410 and a discharge hole 412 for discharging gas to the outside of the container 410. . Wherein the liquid may be pure and ultrapure water, the gas may be steam or superheated steam.

In addition, the supply hole 411 may be connected to an external supply part (not shown) and a supply line (not shown) to introduce liquid into the container 410.

The first dielectric heating unit 420 may include a first electrode 421, a second electrode 422, and a first dielectric region 423.

The first electrode 421 may be provided in the container 410, and an upper portion of the first electrode 421 may be opened, and a lower surface of the first electrode 421 may be closed.

In addition, the bottom surface of the first electrode 421 may have a curved shape (or U-shape) protruding downward, and may have a cylindrical shape including the same.

The second electrode 422 may be provided inside the container 410 and may receive the first electrode 120 adjacent to the first electrode 120.

In this case, the second electrode 422 may be provided inside the container 110, and an upper portion of the second electrode 422 may be opened and a lower portion of the second electrode 422 may be closed. .

In addition, the bottom surface of the second electrode 422 may have a curved shape (or U-shape) protruding downward, and may have a cylindrical shape including the same.

In other words, each of the first electrode 421 and the second electrode 422 is spaced apart from each other at a predetermined interval to form a width between the electrodes, and the first electrode 421 having a small area according to the area (or volume) of the electrode. May be received and disposed in the second electrode 422.

A first dielectric region 423 may be formed between the first electrode 421 and the second electrode 422.

In detail, the first dielectric region 423 is a region determined by a width (or a separation distance) between the first electrode 421 and the second electrode 422, and adjacent to each other, the first electrode 421 and the second electrode. A first dielectric region 423 may be formed between the 422.

The first dielectric region 423 may be a hollow region. When a liquid is present in the hollow region, the first dielectric region 423 may be a heating region that heats the liquid and converts the state into a gas.

The first dielectric region 423 has an area of the first dielectric region 423 according to the area of the first electrode 421 and the second electrode 422 and the width between the first electrode 421 and the second electrode 422. This can be reduced or enlarged.

In addition, the first electrode 421 and the second electrode 422 are provided in the container 410, and the first electrode 421 and the second electrode (421) may be provided according to the level or capacity of the liquid stored in the container 410. Some or all of 422 may be located inside the liquid, such that the area of the first dielectric region 423 may be reduced or enlarged by the level and capacity of the liquid.

The first power supply unit 440 is connected to each of the first electrode 421 and the second electrode 422, and applies a first AC voltage to the first electrode 421 and the second electrode 422. In addition, the first power supply unit 440 may include a first AC voltage based on at least one of liquid conductivity, an area of the first electrode 421, an area of the second electrode 422, and an area of the first dielectric region 423. The liquid can be heated by changing the size of or changing the frequency from 0 Hz to 100 Hz.

In addition, the first AC voltage applied from the first power supply unit 440 may include an AC pulse voltage, and may include single phase AC.

In this case, the first power supply unit 440 may include a third switch unit 441, and the third switch unit 441 may include at least two switches.

The third switch 441 may be connected to the first electrode 421 to apply a first voltage of single phase exchange to the first electrode 421, and may be connected to a second electrode 423 to provide a single phase The second voltage may be applied to the second electrode 423.

Thus, the single-phase AC voltage supplied from the first power supply unit 440 may be transmitted to the first electrode 421 and the second electrode 422 according to the operation of the third switch unit 441.

The second dielectric heating unit 430 may include a third electrode 431, a fourth electrode 432, and a second dielectric region 433.

The third electrode 431 may be provided in the container 410, and may have an upper surface of the third electrode 431 open and a lower surface of the third electrode 431 closed.

In addition, the bottom surface of the third electrode 431 may have a curved shape (or U-shape) protruding downward, and may have a cylindrical shape including the same.

The fourth electrode 432 may be provided inside the container 410 and may receive the fourth electrode 432 adjacent to the third electrode 431.

In this case, the fourth electrode 432 may be provided in the container 110, and an upper portion of the fourth electrode 432 may be opened and a lower portion of the fourth electrode 432 may be closed. .

In addition, the bottom surface of the fourth electrode 432 may have a curved shape (or U-shape) protruding downward, and may have a cylindrical shape including the same.

In other words, each of the third electrode 431 and the fourth electrode 432 is spaced apart from each other at a predetermined interval to form a width between the electrodes, and the third electrode 431 having a small area according to the area (or volume) of the electrode. May be disposed to accommodate the fourth electrode 432.

A second dielectric region 433 may be formed between the third electrode 431 and the fourth electrode 432.

Specifically, the second dielectric region 433 is an area determined by the width (or separation distance) between the third electrode 431 and the fourth electrode 432, and the third electrode 431 and the fourth electrode neighboring each other. A second dielectric region 433 may be formed between the 432s.

The second dielectric region 433 may be a hollow region. When the liquid is present in the hollow region, the second dielectric region 433 may be a heating region for heating the liquid and converting the state into a gas. It may be a decomposition zone for improving water quality.

The second dielectric region 433 has an area of the second dielectric region 433 according to the area of the third electrode 431 and the fourth electrode 432 and the width between the third electrode 431 and the fourth electrode 432. This can be reduced or enlarged.

In addition, the third electrode 431 and the fourth electrode 432 are provided in the container 410, and the third electrode 431 and the fourth electrode 431 according to the level or capacity of the liquid stored in the container 410. Some or all of 432 may be located inside the liquid such that the area of the second dielectric region 433 may be reduced or enlarged by the level and capacity of the liquid.

The second power supply unit 450 is connected to each of the third electrode 432 and the fourth electrode 433, and applies a second AC voltage or a DC voltage to the third electrode 432 and the fourth electrode 433.

In addition, the second power supply unit 450 may include a DC voltage generator 451, a first switch unit 452, an AC voltage generator 453, and a second switch unit 454.

The DC voltage generator 451 may decompose the liquid and may turn on / off the supply of the DC voltage through the three-phase power source and the first switch unit 452.

The AC voltage generator 453 may output an AC voltage by alternating a positive polarity and a negative polarity through a three-phase power supply, a plurality of transistors, a filter, a matching network, and a second switch unit 454. The frequency of the second AC voltage may be changed to 1,000 Hz to 10,000 Hz. In addition, the second AC voltage applied from the AC voltage generator 453 may include an AC pulse voltage and may include single-phase AC.

The first switch unit 452 may be connected to the third electrode 431 or the fourth electrode 432 to apply a DC voltage to the third electrode 431 or the fourth electrode 432.

The second switch unit 454 may be connected to the third electrode 431 to apply a second voltage of the single phase exchange to the third electrode 431. The second switch 454 may be connected to the fourth electrode 432 to connect the single electrode. The second voltage may be applied to the fourth electrode 432.

Thus, the DC voltage and the second AC voltage supplied from the second power supply unit 450 are controlled by the third and fourth electrodes 431 and 432 according to the operation of the first switch unit 452 and the second switch unit 454. ) Can be delivered.

In the following description, an example in which the liquid contains pure water and the gas contains steam will be described in detail. However, this is only one example for convenience of description, 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.

Referring to FIG. 4, the container 410 is connected to an external supply part (not shown) and a supply line (not shown) to receive pure water.

In addition, pure water flows between the first dielectric heating unit 420 and the second dielectric heating unit 430 provided in the container 410, and according to the level of the pure water introduced into the container 410, Some or all of the heating unit 420 and the second dielectric heating unit 430 are immersed in pure water.

The first dielectric heating unit 420 and the second dielectric heating unit 430 are provided in the container 410 using pure water stored in the container 410 to perform each process.

When the process is performed in the first dielectric heating unit 420, the first power supply unit 440 is connected to each of the first electrode 421 and the second electrode 422, and the first electrode 421 and the second electrode. The first alternating current voltage is applied to 422 to generate pure water by heating pure water.

In this case, the frequency of the first AC voltage may be 0 Hz to 100 Hz.

In addition, when the process is performed in the second dielectric heating unit 430, the AC voltage generator 453 of the second power supply unit 450 is connected to each of the third electrode 431 and the fourth electrode 432. The second alternating current voltage is applied to the three electrodes 431 and the fourth electrode 432 to lower the redox potential of the pure water and to promote the aggregation, precipitation and flotation of organic and inorganic substances contaminating the pure water. Will improve.

In this case, the frequency of the second AC voltage may be 1,000 Hz to 10,000 Hz.

In addition, the DC voltage generator 451 of the second power supply unit 450 is connected to each of the third electrode 431 or the fourth electrode 432, and the DC voltage is connected to the third electrode 431 or the fourth electrode 432. Is applied to convert pure water into electrolyzed water.

At this time, the electrolyzed water may be generated through decomposition of pure water.

As a result, compared with the liquid heating device 100 of FIG. 1, the first power supply unit 440 and the second power supply unit 450 used in the liquid heating device 400 are formed side by side in the longitudinal direction to heat the liquid of FIG. 1. It is possible to generate a relatively large amount of pure water and steam than the apparatus 100.

5 is a view showing a liquid heating apparatus according to another embodiment of the present invention.

Referring to FIG. 5, the liquid heating device 500 may include a container 510, at least one first electrode 520, at least one second electrode 530, a dielectric region 540, and a first power supply 550. And a second power supply unit 560.

Meanwhile, the container 510, the at least one or more first electrodes 520, the at least one or more second electrodes 530, the dielectric region 540, the first power supply unit 550, and the second power supply unit are illustrated in FIG. 5. 560 is the same as described above through the container 110, the first electrode 120, the second electrode 130, the dielectric region 140, the first power supply unit 150, and the second power supply unit 160 of FIG. 1. Therefore, duplicate descriptions are omitted.

The first electrode 520 is provided in the container 510 in a plate shape, and may be configured in plural.

In addition, the second electrode 530 may be provided inside the container 510 in a plate shape. When the first electrode 520 is configured in plural, the second electrode 530 may be provided in plural between the neighboring first electrodes 520.

In other words, the first electrode 520 and the second electrode 530 are spaced apart from each other by a predetermined distance to form a width between the electrodes, and according to the volume (or area) of the container and the capacity of the liquid stored in the container, the first electrode Each of the electrodes 520 and 530 may be alternately arranged in the order of 520-second electrode 530-first electrode 520-second electrode 530.

In addition, a dielectric region 540 may be formed between the first electrode 520 and the second electrode 530.

In detail, the dielectric region 540 is a region determined by the width between the electrodes, and may be formed between the first electrode 520 and the second electrode 530 that are adjacent to each other.

The dielectric region 540 may be a hollow region, and when liquid is present in the hollow region, the dielectric region 540 may be a heating region for heating the liquid and converting the state into a gas, and a decomposition region for improving the water quality of the liquid. Can be.

As a result, the liquid heating device 500 according to the present invention may be provided with at least one dielectric region to control the temperature at which gas is generated or to reduce power consumption by shortening the power uptime.

6 is a view showing a liquid heating apparatus according to another embodiment of the present invention.

Referring to FIG. 6, the liquid heating device 600 may include a container 610, at least one first electrode 620, at least one second electrode 630, a dielectric region 640, and a first power supply 650. And a second power supply unit 660.

Meanwhile, the container 610, the at least one first electrode 620, the at least one second electrode 630, the dielectric region 640, the first power source 650, and the second power source of the configuration illustrated in FIG. 6. 660 is the same as described above with the container 110, the first electrode 120, the second electrode 130, the dielectric region 140, the first power source 150, and the second power source 160 of FIG. 1. Therefore, duplicate descriptions are omitted.

The first electrode 620 and the second electrode 630 may have a cylindrical shape having the same center in cross section.

As the areas of the first electrode 620 and the second electrode 630 become wider, it can be seen that the dielectric region 640 can be formed wider.

As a result, in the dielectric region 140 formed between the first electrode 620 and the second electrode 630, heat generated by an increase in an area in which pure water is decomposed or can be vaporized by being supplied with energy is transmitted to the dielectric region 640. In addition to the heat transfer to the pure water present, the heat transfer region inside the container 610 is enlarged, and thus steam can be generated uniformly.

7 is a view showing a liquid heating apparatus according to another embodiment of the present invention.

Referring to FIG. 7, the liquid heating apparatus 700 may include a container 710, at least one first electrode 720, at least one second electrode 730, a dielectric region 740, and a first power supply 750. And a second power supply unit 760.

Meanwhile, the container 710, the at least one or more first electrodes 720, the at least one or more second electrodes 730, the dielectric region 740, the first power supply unit 750, and the second power supply unit are illustrated in FIG. 7. 760 is the same as described above with the container 110, the first electrode 120, the second electrode 130, the dielectric region 140, the first power source 150, and the second power source 160 of FIG. 1. Therefore, duplicate descriptions are omitted.

The first electrode 720 and the second electrode 730 are at least two or more even numbers, and the pair of first electrodes 720 and the pair of second electrodes 730 are one semicircle shape spaced apart from an imaginary center line and It may include one semi-circle shape facing one semi-circle shape.

As a result, as the area of the first electrode 720 and the second electrode 730 becomes wider, the dielectric region 740 can be formed wider. Accordingly, as the dielectric region 740 increases, a large amount of liquid is increased. Is heated quickly and uniformly, and the heating time during which the state is converted into gas is shortened, and as a result, the amount of gas generated can be increased.

As a result, the liquid heating apparatus according to the present invention can heat the liquid present in the dielectric region and convert the state into a gas, and shorten the heating time during which the liquid is uniformly heated in the dielectric region and transformed into a gas.

In addition, it is possible to improve the water quality of the liquid through the decomposition using the AC voltage, it is possible to improve the sterilization and cleaning power of the liquid through decomposition using the DC voltage.

Embodiments of the present invention described above are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. In addition, it is to be understood that the invention includes all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims (16)

A container for storing a liquid;
A first electrode provided inside the container;
A second electrode provided inside the container and adjacent to the first electrode to receive the first electrode;
A dielectric region disposed between the first electrode and the second electrode adjacent to each other, wherein the dielectric region is present;
A first power supply unit applying a first AC voltage to the first electrode and the second electrode; And
A second power supply unit applying a second AC voltage or a DC voltage to the first electrode and the second electrode,
The dielectric region is,
At least one of an initial heating region and a heating region formed by varying an electrical area or a volume of the dielectric region according to a spaced distance between the first electrode and the second electrode,
The spaced distance between the first electrode and the second electrode in the initial heating zone is smaller than the spaced distance between the first electrode and the second electrode in the heating zone,
The initial heating zone heats the liquid present in the initial heating zone to supply the heating zone,
And the heating zone decomposes or heats the heated liquid supplied from the initial heating zone to generate a gas in which the state is converted.
delete delete The method of claim 1,
The first electrode,
Liquid heating device comprising a shape that narrows in the longitudinal direction toward the other neighboring electrode.
A container for storing a liquid;
A first dielectric heating unit provided in the container;
A second dielectric heating unit provided in the container;
A first power supply unit applying a first AC voltage to the first dielectric heating unit; And
A second power supply unit applying a second AC voltage or a DC voltage to the second dielectric heating unit;
The first dielectric heating unit,
A first electrode provided inside the container;
A second electrode provided inside the container and adjacent to the first electrode to receive the first electrode; And
A first dielectric region disposed between the first electrode and the second electrode adjacent to each other, wherein the liquid exists;
The second dielectric heating unit,
A third electrode provided inside the container;
A fourth electrode provided inside the container and receiving the third electrode adjacent to the third electrode; And
A second dielectric region disposed between the third electrode and the fourth electrode adjacent to each other, wherein the liquid exists;
The first dielectric region may include at least one of an initial heating region and a heating region formed by varying an electrical area or volume of the first dielectric region according to the distance between the first electrode and the second electrode. and,
The second dielectric region may include at least one of an initial heating region and a heating region formed by varying an electrical area or volume of the second dielectric region according to the distance between the third electrode and the fourth electrode. and,
The distance between the first electrode and the second electrode of the initial heating region included in the first dielectric region may be spaced apart from the first electrode and the second electrode in the heating region included in the first dielectric region. Less than distance,
The distance between the third electrode and the fourth electrode of the initial heating region included in the second dielectric region is spaced apart from the third electrode and the fourth electrode in the heating region included in the second dielectric region. Less than distance,
The initial heating region included in the first dielectric region and the second dielectric region respectively heats a liquid existing in the initial heating region included in the first dielectric region and the second dielectric region, respectively. Supplying to the heating region included in each of the region and the second dielectric region,
The heating region included in each of the first dielectric region and the second dielectric region may decompose or heat the heated liquid supplied from the initial heating region included in the first dielectric region and the second dielectric region, respectively. Liquid heater that produces a gas that is converted to a state.
delete delete delete delete The method according to any one of claims 1 to 5,
The container,
And 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 any one of claims 1 to 5,
The liquid is,
Contains pure water,
The gas,
Liquid heating device containing steam. The method according to any one of claims 1 to 5,
The first AC voltage is,
Liquid heating device including an alternating pulse voltage. The method according to any one of claims 1 to 5,
The first AC voltage is,
It is single phase flow,
The first voltage of the single phase AC is
Applied to the first electrode,
The second voltage corresponding to the first voltage is
Liquid heating device is applied to the second electrode. The method of claim 1,
The first power supply unit,
The frequency of the first AC voltage is changed from 0 Hz to 100 Hz 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 the volume of the dielectric region. Liquid heating device for heating the liquid. The method according to any one of claims 1 to 5,
The second power supply unit,
Including DC voltage and AC voltage,
Through the AC voltage changer, the frequency of the second AC voltage is changed to 1000Hz to 10000Hz,
A liquid heating device for decomposing the liquid through the DC voltage transformer. The method of claim 15,
The DC voltage generator,
Through the three-phase power supply and the first switch unit, the supply of the DC voltage On (On) / Off (Off),
The AC voltage generator,
And a positive (+) polarity and a negative (-) polarity are alternately outputted through the three-phase power source, the plurality of transistors, the filter, the matching network, and the second switch unit.

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