WO2008007819A1

WO2008007819A1 - Induction boiler

Info

Publication number: WO2008007819A1
Application number: PCT/KR2006/002960
Authority: WO
Inventors: Ki Hwa Lee
Original assignee: KTL CO Ltd
Current assignee: KTL CO Ltd
Priority date: 2006-07-10
Filing date: 2006-07-27
Publication date: 2008-01-17
Anticipated expiration: 2009-01-10
Also published as: KR100762950B1

Abstract

The present invention relates to an induction boiler that heats water with the heat obtained by thermally responding a magnetic field induced from a power source, thereby greatly reducing the fuel costs while in use to give much economical saving. The induction boiler includes a metal plate body of a given size adapted to allow water to flow in and out, the metal plate body having a magnetic field induction means mounted thereon, wherein the metal plate body responds to the magnetic field induced by means of the magnetic field induction means so as to heat the water flowing at the inside thereof.

Description

INDUCTION BOILER

Technical Field

[1] The present invention relates to a boiler used for heating water, and more particularly, to an induction boiler that heats water with the heat obtained by thermally responding to a magnetic field induced from a power source, thereby greatly reducing the fuel costs while in use to give much economical saving. Background Art

[2] Generally, a boiler refers to an apparatus used to heat water with the heat of combustion generated by burning fuel therein and to provide the heated water to ships, factories, or houses. Petroleum, coals or the like is widely used as the fuel. Alternately, recently, boilers using electricity as fuel to heat water are developed and widely spread.

[3] However, as most of the boilers use petroleum as fuel, high fuel costs are not avoided in the industrial fields or houses, which causes many economical losses to them. In the industrial structure where the electricity is produced by using a thermal power plant, high electric charges are not avoided in the industrial fields or houses having the boiler using electricity as an energy source, which also causes many economical losses to them.

[4] The boiler that heats water by burning fuel like petroleum or coals is relatively complicated in the construction and requires a relatively large area for installation, such that there are caused some problems that the manufacturing process is not simple and the installation area is not easily secured. Disclosure of Invention Technical Problem

[5] Accordingly, it is an object of the present invention to provide an induction boiler that heats water with the heat obtained by thermally responding to a magnetic field induced from a power source, thereby greatly reducing the fuel costs while in use, which gives much economical saving.

[6] Another object of the present invention is to provide an induction boiler that is relatively simple in the construction, thereby making the manufacturing process easy and that is relatively easy in the adjustment of size, thereby enabling easy installation thereof even in a relatively small area. Technical Solution

[7] To achieve the above objects, according to an aspect of the present invention, there is provided an induction boiler that includes: a metal plate body of a given size adapted to allow water to flow in and out; and a magnetic field induction means mounted on the metal plate body, wherein the metal plate body responds to the magnetic field induced by means of the magnetic field induction means so as to heat the water flowing at the inside thereof.

[8] According to the present invention, preferably, the magnetic field induction means may be further provided with a temperature sensor for sensing the temperature of the water heated by the metal plate body.

[9] According to the present invention, preferably, the metal plate body includes: a first aluminum plate body of a given size having a through hole formed in the middle portion thereof; second aluminum plate bodies fixedly mounted as an integral piece on the upper and lower surfaces of the first aluminum plate body and having first grooves formed on the surfaces thereof which are contacted with the first aluminum plate body, for forming a water flow passageway via the through hole formed on the first aluminum plate body; and first stainless plate bodies fixedly mounted as an integral piece on the surfaces of the second aluminum plate bodies opposite to the surfaces thereof contacted with the first aluminum plate body so as to respond to the magnetic field induced by the magnetic field induction means to emit the heat used to heat the water flowing along the first grooves.

[10] At this time, preferably, the first grooves may be formed spirally such that the water flows spirally therealong.

[11] Also, the first grooves may be formed spirally to have any one shape of circular, triangular, square and polygonal shapes.

[12] At this time, preferably, the first grooves may be formed in a zigzag shape such that the water flows zigzag therealong.

[13] According to the present invention, preferably, the first aluminum plate body may be coupled integrally with the second aluminum plate bodies by means of welding.

[14] According to the present invention, preferably, the first aluminum plate body may be coupled integrally with the second aluminum plate bodies by means of bolts.

[15] According to the present invention, preferably, the first stainless plate bodies may be fixedly coupled as an integral piece with the second aluminum plate bodies at the time of casting the second aluminum plate bodies.

[16] According to the present invention, preferably, the stainless plate bodies may have a plurality of first holes formed thereon such that the cast is filled thereinto at the time of casting the second aluminum plate bodies, thereby enhancing the coupling force with the second aluminum plate bodies.

[17] Preferably, the plurality of first holes may be formed inclinedly.

[18] Preferably, each of the first grooves has a generally semicircular, oval, or polygonal sectional shape. [19] According to the present invention, preferably, the meal plate body includes: a third aluminum body plate of a given size; a fourth aluminum plate body integrally fixed on one surface of the third aluminum plate body and having a second groove formed on the surface thereof that is contacted with the third aluminum plate body, for forming a water flow passageway for a boiler; and a second stainless plate body integrally fixed on the opposite surface of the fourth aluminum plate body to the contacted surface with the third aluminum plate body, for emitting heat by thermally responding to the magnetic field induced by means of the magnetic field induction means.

[20] At this time, preferably, the second groove may be formed in a zigzag shape such that the water flows zigzag therealong.

[21] According to the present invention, preferably, the third aluminum plate body may be coupled integrally with the fourth aluminum plate body by means of welding.

[22] According to the present invention, preferably, the third aluminum plate body may be coupled integrally with the fourth aluminum plate body by means of bolts.

[23] According to the present invention, preferably, the second stainless plate body may be fixedly coupled as an integral piece with the fourth aluminum plate body at the time of casting the fourth aluminum plate body.

[24] According to the present invention, preferably, the second stainless plate body may have a plurality of second holes formed thereon such that the cast is filled thereinto at the time of casting the fourth aluminum plate body, thereby enhancing the coupling force with the fourth aluminum plate body.

[25] Preferably, the plurality of second holes may be formed inclinedly.

[26] Preferably, the second groove may have a generally semicircular, oval, or polygonal sectional shape.

[27] To achieve the above objects, according to another aspect of the present invention, there is provided an induction boiler including: a pipe line formed in such a manner as to be spirally wound inwardly from the outside and then spirally wound again outwardly from the inside, for forming a water flow passageway; and a heating means disposed at the upper and lower sides of the pipe line for responding to a magnetic field to emit heat therefrom for heating water flowing along the pipe line.

[28] According to the present invention, preferably, the heating means may include: fifth aluminum plate bodies disposed at the upper and lower sides of the pipe line in such a manner as to be integrally fixed to each other; third stainless plate bodies integrally fixed to the fifth aluminum plate bodies for responding to the magnetic field to emit heat therefrom; and magnetic field induction means fixed to the fifth aluminum plate bodies for applying the magnetic field to the third stainless plate bodies.

[29] According to the present invention, preferably, the fifth aluminum plate bodies may be coupled with each other by means of bolts. Brief Description of the Drawings

[30] FTG.1 is a perspective view showing an induction boiler according to a first embodiment of the present invention;

[31] FTG.2 is a sectional view of FlG.1 ;

[32] F1G.3 is a separate perspective view of F1G.1 ;

[33] FIGS.4 to 10 illustrate the variations of the stainless plate body employed in the induction boiler according to the first embodiment of the present invention;

[34] FIGS.11 and 12 are plan views showing various water flow passageways formed by the groove of the aluminum plate body employed in the induction boiler according to the first embodiment of the present invention;

[35] FlG.13 illustrates the use state of the induction boiler according to the first embodiment of the present invention;

[36] FlG.14 is a perspective view showing an induction boiler according to a second embodiment of the present invention;

[37] F1G.15 is a sectional view of F1G.14;

[38] F1G.16 is a separate perspective view of FIG.14; and

[39] FlG.17 is a separate perspective view showing an induction boiler according to a third embodiment of the present invention. Mode for the Invention

[40] Now, an explanation of the induction boiler according to the preferred embodiments of the present invention will be given with reference to the accompanying drawing.

[41] FlG.1 is a perspective view showing an induction boiler according to a first embodiment of the present invention, F1G.2 is a sectional view of FlG.1, F1G.3 is a separate perspective view of FlG.1, FIGS .4 to 10 illustrate the variations of the stainless plate body employed in the induction boiler according to the first embodiment of the present invention, FIGS.11 and 12 are plan views showing various water flow passageways formed by the groove of the aluminum plate body employed in the induction boiler according to the first embodiment of the present invention, and FlG.13 illustrates the use state of the induction boiler according to the first embodiment of the present invention.

[42] As shown, the induction boiler according to a first embodiment of the present invention is provided with a first aluminum plate body 10 of a given size. The first aluminum plate body 10 has a through hole 11 formed in the middle portion thereof.

[43] The first aluminum plate body 10 has second aluminum plate bodies 20a and 20b mounted on the upper and lower surfaces thereof. The second aluminum plate bodies 20a and 20b have the same size as the first aluminum plate body 10. The first aluminum plate body 10 is coupled integrally with the second aluminum plate bodies 20a and 20b by means of bolts or welding. The second aluminum plate bodies 20a and 20b have first grooves 21a and 21b formed on the contacted surfaces with the first aluminum plate body 10, for producing water flow passageways via the through hole 11 formed on the first aluminum plate body 10. The second aluminum plate bodies 20a and 20b are fixedly mounted to the first aluminum plate body 10 such that the first grooves 21a and 21b communicate with each other via the through hole 11. The first aluminum plate body 10 is adapted to cover the first grooves 21a and 21b, thereby making the flow passageways closed. Each of the first grooves 21a and 21b has a generally semicircular, oval, or polygonal sectional shape.

[44] The first aluminum plate body 10 has communicating holes 13a and 13b formed on one end thereof such that the first grooves 21a and 21b can communicate with the outside. The communicating holes 13a and 13b are L-shaped to communicate with the first grooves 21a and 21b. In this embodiment, one 13b may be an inlet hole, and the other 13a may be an outlet hole. Thus, water is supplied to the communicating hole 13b, flows along the first groove 21b, and flows to the first groove 21a via the through hole 11. Next, the water flows along the first groove 21a and is finally discharged through the communicating hole 13a. The second aluminum plate bodies 20a and 20b are adapted to heat the water flowing thereon.

[45] The second aluminum plate bodies 20a and 20b have first stainless plate bodies 30a and 30b formed on the opposite surfaces to the contacted surfaces with the first aluminum plate body 10. The first stainless plate bodies 30a and 30b are adapted to send the heat obtained by thermally responding to a magnetic field to the second aluminum plate bodies 20a and 20b, such that the second aluminum plate bodies 20a and 20b make use of heating the water flowing along the first grooves 21a and 21b. The magnetic field is generated by magnetic field induction means 40a and 40b fixedly mounted on the second aluminum plate bodies 20a and 20b in such a manner as to place the first stainless plate bodies 30a and 30b on the second aluminum plate bodies 20a and 20b. The magnetic field induction means 40a and 40b have coils 41a and 41b thickly wound along the inner peripheries thereof such that the magnetic field is induced from the coils 41a and 41b as power source is applied from the outside to the coils 41a and 41b. This can be explained by the law of Fleming. In other words, according to the law of Fleming, if the electric current flows to the coils 41a and 41b, the magnetic field is induced in a perpendicular direction to the coils such that the first stainless plate bodies 30a and 30b that are mounted in the direction where the magnetic field is formed are thermally responsive to the magnetic field.

[46] The first stainless plate bodies 30a and 30b that thermally respond to the magnetic field are fixedly coupled with the second aluminum plate bodies 20a and 20b as an integral piece with each other at the time of casting the second aluminum plate bodies 20a and 20b. The stainless plate bodies 30a and 30b have a plurality of holes 31a and 31b formed thereon such that the cast at the time of casting the second aluminum plate bodies 20a and 20b is filled thereinto, thereby enhancing the coupling force with the second aluminum plate bodies 20a and 20b. The plurality of holes 31a and 31b are formed in such a manner as to be inclined. As shown in the expanded parts in the circle of FIG.2, therefore, the plurality of holes 31a and 31b are formed such that the first stainless plate bodies 30a and 30b and the second aluminum plate bodies 20a and 20b are coupled to have the reverse inclined surface to each other. As a result, the first stainless plate bodies 30a and 30b are not separated from the second aluminum plate bodies 20a and 20b. The first stainless plate bodies 30a and 30b may be embodied as the variations as shown in F1G.3 and FIGS. 4 through 10.

[47] The water heated by means of the second aluminum plate bodies 20a and 20b is discharged through the communicating hole 13a and is used for heating rooms or for a bath. At this time, so as to efficiently heat water with the low consumption of energy, desirably, the first grooves 21a and 21b are formed spirally such that water flows spirally therealong. As shown in F1G.3 and FTGS.5a and 5b, the first grooves 21a and 21b are formed spirally to have any one shape of circular, triangular, square and polygonal shapes.

[48] Like this, if water flows along the spirally formed grooves, the period of time consumed for the water to flow is longer such that water can be efficiently heated at the expense of low energy. Otherwise, the first grooves 21a and 21b may be formed in a zigzag shape such that the water flows in the zigzag form therealong.

[49] On the other hand, the magnetic field induction means 40a is provided with a temperature sensor 43 formed in the middle portion thereof, for sensing the temperature of water flowing along the first groove 21a. The temperature sensor 43 is adapted to sense the temperature of water flowing along the first groove 21a through a sensor hole 29 formed in the middle portion of the second aluminum plate body 20a in such a manner as to communicate with the first groove 21a. Even though not shown, the temperature sensor 43 is electrically connected with a control panel on which a micro computer is mounted, and the control panel is adapted to cut the outside power applied to the magnetic field induction means 40a and 40b in response to the temperature data transmitted from the temperature sensor 43. Thus, the temperature of water can be efficiently controlled and the excessive consumption of energy can be prevented.

[50] FlG.14 is a perspective view showing an induction boiler according to a second embodiment of the present invention, FlG.15 is a sectional view of FlG.14, and FlG.16 is a separate perspective view of FlG.14. [51] As shown, the induction boiler according to the second embodiment of the present invention is configured such that water is heated only on one surface of a single aluminum plate body, unlike the induction boiler according to the first embodiment of the present invention, and since the operation principles thereof are the same as of the first embodiment of the present invention, hereinafter, a detailed description of the induction boiler according to the second embodiment of the present invention will be avoided for the brevity of the description.

[52] The induction boiler according to the second embodiment of the present invention includes a third aluminum body plate 110, a fourth aluminum plate body 120 integrally fixed on one surface of the third aluminum plate body 110 and having a second groove 121 formed on the surface thereof that is contacted with the third aluminum plate body 110, for producing a water flow passageway, a second stainless plate body 130 integrally fixed on the surface of the fourth aluminum plate body 120 opposite to the surface thereof that is contacted with the third aluminum plate body 110 for emitting heat by thermally responding to a magnetic field, and a magnetic field induction means 140 for applying the magnetic field to the second stainless plate body 130, whereby water can be heated only on one surface of the third aluminum plate body 110, unlike the first embodiment of the present invention. At this time, the second groove 121 is desirably in a zigzag shape.

[53] FlG.17 is a separate perspective view showing an induction boiler according to a third embodiment of the present invention.

[54] As shown, the induction boiler according to the third embodiment of the present invention is configured in the same manner as the first embodiment of the present invention, except that a pipe line 210 is formed in place of the first aluminum plate body 10 and the first grooves 21a and 21b for forming water flow passageways in the induction boiler according to the first embodiment of the present invention.

[55] The pipe line 210 is formed in such a manner as to be wound inwardly from the outside in a first spiral shape 210a and then wound again outwardly from the inside in a second spiral shape 210b, thereby forming a water flow passageway. The pipe line 210 is disposed between fifth aluminum plate bodies 220a and 220b integrally fixed to third stainless plate bodies 230a and 230b thereon, and the third stainless plate bodies 230a and 230b are thermally responsive to magnetic field induction means 240a and 240b such that the fifth aluminum plate bodies 220a and 220b serve to heat the water flowing along the pipe line 210. The heated water is used for heating rooms or for a bath. The pipe line 210 is embedded in a casing for protection from the outside, and the casing preferably has an insulating material provided at the inside thereof, for preventing the heat loss of the pipe line 210. Industrial Applicability

[56] As described above, there is provided an induction boiler that heats water with the heat obtained by thermally responding to a magnetic field induced from a power source, thereby greatly reducing the fuel costs while in use to give much economical saving, that is relatively simple in the construction, thereby making the manufacturing process easy, and that is relatively easy in the adjustment of size, thereby making the installation area occupied even in a relatively small area.

Claims

[ 1 ] An induction boiler comprising: a metal plate body of a given size adapted to allow water to flow in and out; and a magnetic field induction means mounted on the metal plate body, wherein the metal plate body responds to the magnetic field induced by means of the magnetic field induction means so as to heat the water flowing at the inside thereof.

[2] The induction boiler according to claim 1, wherein the magnetic field induction means is further provided with a temperature sensor formed in the middle portion thereof, for sensing the temperature of the water heated by the metal plate body.

[3] The induction boiler according to claim 1, wherein the metal plate body comprises: a first aluminum plate body of a given size having a through hole formed in the middle portion thereof; second aluminum plate bodies fixedly mounted as an integral piece on the upper and lower surfaces of the first aluminum plate body and having first grooves formed on the surfaces thereof which are contacted with the first aluminum plate body, for forming a water flow passageway via the through hole formed on the first aluminum plate body; and first stainless plate bodies fixedly mounted as an integral piece on the surfaces of the second aluminum plate bodies opposite to the surfaces thereof contacted with the first aluminum plate body so as to respond to the magnetic field induced by the magnetic field induction means to emit the heat used to heat the water flowing along the first grooves.

[4] The induction boiler according to claim 3, wherein the first grooves are formed spirally such that the water flows spirally therealong.

[5] The induction boiler according to claim 4, wherein the first grooves are formed spirally to have any one shape of circular, triangular, square and polygonal shapes.

[6] The induction boiler according to claim 3, wherein the first grooves are formed in a zigzag shape such that the water flows zigzag therealong.

[7] The induction boiler according to claim 3, wherein the first aluminum plate body is coupled integrally with the second aluminum plate bodies by means of welding.

[8] The induction boiler according to claim 3, wherein the first aluminum plate body is coupled integrally with the second aluminum plate bodies by means of bolts.

[9] The induction boiler according to claim 3, wherein the first stainless plate bodies are fixedly coupled as an integral piece with the second aluminum plate bodies at the time of casting the second aluminum plate bodies.

[10] The induction boiler according to claim 9, wherein the stainless plate bodies have a plurality of first holes formed thereon such that the cast at the time of casting the second aluminum plate bodies is filled thereinto, thereby enhancing the coupling force with the second aluminum plate bodies.

[11] The induction boiler according to claim 10, wherein the plurality of first holes are formed inclinedly.

[12] The induction boiler according to claim 3, wherein each of the first grooves has a generally semicircular, oval, or polygonal sectional shape.

[13] The induction boiler according to claim 1, wherein the meal plate body comprises: a third aluminum body plate of a given size; a fourth aluminum plate body integrally fixed on one surface of the third aluminum plate body and having a second groove formed on the surface thereof that is contacted with the third aluminum plate body, for forming a water flow passageway for a boiler; and a second stainless plate body integrally fixed on the opposite surface of the fourth aluminum plate body to the contacted surface thereof with the third aluminum plate body, for emitting heat by thermally responding to the magnetic field induced by means of the magnetic field induction means.

[14] The induction boiler according to claim 13, wherein the second groove is formed in a zigzag shape such that the water flows zigzag therealong.

[15] The induction boiler according to claim 13, wherein the third aluminum plate body is coupled integrally with the fourth aluminum plate body by means of welding.

[16] The induction boiler according to claim 13, wherein the third aluminum plate body is coupled integrally with the fourth aluminum plate body by means of bolts.

[17] The induction boiler according to claim 13, wherein the second stainless plate body is fixedly coupled as an integral piece with the fourth aluminum plate body at the time of casting the fourth aluminum plate body.

[18] The induction boiler according to claim 17, wherein the second stainless plate body has a plurality of second holes formed thereon such that the cast is filled thereinto at the time of casting the fourth aluminum plate body, thereby enhancing the coupling force with the fourth aluminum plate body.

[19] The induction boiler according to claim 18, wherein the plurality of second holes are formed inclinedly.

[20] The induction boiler according to claim 13, wherein the second groove has a generally semicircular, oval, or polygonal sectional shape.

[21] An induction boiler comprising: a pipe line formed in such a manner as to be spirally wound inwardly from the outside and then spirally wound again outwardly from the inside, for forming a water flow passageway; and a heating means disposed at the upper and lower sides of the pipe line for responding a magnetic field to emit heat therefrom for heating water flowing along the pipe line.

[22] The induction boiler according to claim 21, wherein the heating means comprises: fifth aluminum plate bodies disposed at the upper and lower sides of the pipe line in such a manner as to be integrally fixed to each other; third stainless plate bodies integrally fixed to the fifth aluminum plate bodies for responding to the magnetic field to emit heat therefrom; and magnetic field induction means fixed to the fifth aluminum plate bodies for applying the magnetic field to the third stainless plate bodies.

[23] The induction boiler according to claim 21, wherein the fifth aluminum plate bodies are coupled with each other by means of bolts.