WO2008041785A1

WO2008041785A1 - Induction boiler

Info

Publication number: WO2008041785A1
Application number: PCT/KR2006/004737
Authority: WO
Inventors: Ki Hwa Lee
Original assignee: KTL CO Ltd
Current assignee: KTL CO Ltd
Priority date: 2006-10-02
Filing date: 2006-11-13
Publication date: 2008-04-10
Anticipated expiration: 2009-04-02
Also published as: KR100762951B1

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 cylindrical body including a water storing and flowing chamber formed therein for allowing water to flow in and out along the periphery of the water storing and flowing chamber; and a first magnetic field induction means mounted on the inner peripheral surface of the metal cylindrical body and adapted to heat the water storing and flowing chamber, wherein the water stored and flowed in the water storing and flowing chamber is heated to a predetermined temperature by means of the heat generated by allowing the metal cylindrical body to be responsive to the magnetic field induced by the first magnetic field induction means. As a result, the fuel cost is greatly reduced to thereby give much economical saving.

Description

[DESCRI PTION]

[invention Title]

INDUCTION BOILER [Technical Field] 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 in use to give much economical saving. [Background Art]

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 used to heat water. Alternately, recently, boilers using electricity as fuel to heat water are developed and widely spread.

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 burden 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 burden to them. The boiler that heats water by burning fuel like petroleum or coals is relatively complicated in the construction, is difficult to manufacture 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] [Technical Problem]

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 in use, which gives much economical saving. [Technical Solution]

To achieve the above objects, according to an aspect of the present invention, there is provided an induction boiler that comprises: a metal cylindrical body including a water storing and flowing chamber formed therein for allowing water to flow in and out along the periphery of the water storing and flowing chamber; and a first magnetic field induction means mounted on the inner peripheral surface of the metal cylindrical body and adapted to heat the water storing and flowing chamber, wherein the water stored and flowed in the water storing and flowing chamber is heated to a predetermined temperature by means of the heat generated by allowing the metal cylindrical body to be responsive to the magnetic field induced by the first magnetic field induction means.

In a preferred embodiment of the present invention, preferably, the first magnetic field induction means may be formed in a circular shape in cross-section.

In a preferred embodiment of the present invention, preferably, the metal cylindrical body includes: a cylindrical first sensing body having its opened both ends and adapted to wrap around the first magnetic field induction means so as to respond to the magnetic field induced by the first magnetic field induction means; a cylindrical outer shell body having its opened both ends and adapted to wrap around the cylindrical first sensing body so as to form the water storing and flowing chamber therebetween; and a pair of covers coupled to the both ends of the cylindrical outer shell body and adapted to fix the first sensing body and the outer shell body thereto. At this time, preferably, the water storing and flowing chamber may be formed between a pair of first flanges outwardly protruded from the upper and lower ends of the first sensing body, both of which abut against the inner peripheral surface of the outer shell body, respectively. Also, the first flanges may preferably have a first packing member mounted on the outer peripheral surfaces thereof, respectively, so as to provide watertightness to the water storing and flowing chamber.

In a preferred embodiment of the present invention, preferably, any one of the covers may further have a hole formed thereon so as to allow the inside and outside of the first sensing body to communicate with each other therethrough.

Preferably, the water storing and flowing chamber has a pair of socket members mounted on the upper and lower portions thereof, respectively, in such a manner as to pass through the cylindrical outer shell body, so that a pair of water circulation lines are inserted thereto to be fittingly coupled thereto, respectively, to thereby allow water to flow in and out through the water circulation line. At this time, the socket member may preferably have screw portions formed on the outer and inner peripheral surfaces thereof, respectively, for screw-coupling with the outer shell body and the water circulation line for a boiler.

Preferably, the first sensing body may has a ring-shaped retaining step inwardly protruded from any one of the inner peripheral surfaces of the upper and lower ends thereof and adapted to allow the first magnetic field induction means to be seated thereon.

In a preferred embodiment of the present invention, preferably, the first sensing body includes: a first iron cylindrical body for emitting heat by responding to the magnetic field induced by the first magnetic field induction means, and a first aluminum cylindrical body integrally formed with the first iron cylindrical body so as to heat the water in the water storing and flowing chamber by means of the heat of the first iron cylindrical body.

Preferably, the first iron cylindrical body may be fixedly coupled integrally with the first aluminum cylindrical body at the time of casting the first aluminum cylindrical body.

Also, the first iron cylindrical body may preferably have a plurality of coupling holes formed thereon such that the cast is poured and filled thereto at the time of casting the first aluminum cylindrical body, thereby enhancing the coupling force the first iron cylindrical body and the first aluminum cylindrical body. Preferably, the plurality of coupling holes may be formed inclinedly .

In a preferred embodiment of the present invention, preferably, a heating insulating means may be mounted to the periphery of the metal cylindrical body so as to prevent the heat loss of the water heated in the water storing and flowing chamber. The heating insulating means includes: a second magnetic field induction means mounted to the outer periphery of the outer shell body and adapted to induce a magnetic field; a cylindrical second sensing body mounted between the second magnetic field induction means and the outer shell body so as to form a hollow space portion therebetween and adapted to respond to the magnetic field induced by the second magnetic field induction means, the cylindrical second sensing body having its opened both ends; and oil filled in the hollow space portion. Also, the second sensing body may be preferably fixed to the outer shell body by means of the covers.

Preferably, the hollow space portion may be formed between a pair of second flanges outwardly protruded from the upper and lower ends of the outer shell body, both of which abut against the inner peripheral surface of the second sensing body, respectively.

Preferably, the second flanges may preferably have a second packing member mounted on the outer peripheral surfaces thereof, respectively, so as to provide watertightness to the hollow space portion. Preferably, any one of the second flanges may have a through- hole formed thereon, such that it is opened and closed by means of a bolt member so as to allow the inside and outside of the hollow space portion to communicate with each other therethrough.

In a preferred embodiment of the present invention, preferably, the second sensing body includes: a second iron cylindrical body for emitting heat by responding to the magnetic field induced by the second magnetic field induction means, and a second aluminum cylindrical body integrally formed with the second iron cylindrical body so as to heat the oil filled in the hollow space portion by means of the heat of the second iron cylindrical body.

Preferably, the second iron cylindrical body may be fixedly coupled integrally with the second aluminum cylindrical body at the time of casting the second aluminum cylindrical body.

Also, the second iron cylindrical body may preferably have a plurality of coupling holes formed thereon, such that the cast is poured and filled thereto at the time of casting the second aluminum cylindrical body, thereby enhancing the coupling force the second iron cylindrical body and the second aluminum cylindrical body. Preferably, the plurality of coupling holes may be formed inclinedly .

In a preferred embodiment of the present invention, preferably, the outer shell body may be made of an aluminum material.

[Description of Drawings] Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a perspective view showing an induction boiler according to a preferred embodiment of the present invention; FIG. 2 is a cross-sectional view taken along line I-I in FIG. 1;

FIG. 3 is a partial enlarged view of "A" portion in FIG. 2; and

FIG. 4 is a partial enlarged view of "B" portion in FIG. 2. [Mode for Invention]

The preferred embodiments of the invention will be hereinafter described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an induction boiler according to a preferred embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line I-I in FIG. 1, FIG. 3 is a partial enlarged view of "A" portion in FIG. 2; and FIG. 4 is a partial enlarged view of "B" portion in FIG. 2.

As shown in drawings, an induction boiler according to a preferred embodiment of the present invention comprises: a metal cylindrical body 100 having an opened end and adapted to allow water for the boiler to flow in and out along the periphery thereof; and a first magnetic field induction means 1 mounted in the metal cylindrical body 100, so that the metal cylindrical body 100 responds to the magnetic field induced by the first magnetic field induction means 1, to thereby heat the water flowing along the periphery of the metal cylindrical body 100.

The cylindrical body 100 includes a cylindrical first sensing body 110 having its opened both ends and wrapping around the first magnetic induction means 1 such that it can respond to the magnetic field induced by the first magnetic induction means 1, and an cylindrical outer shell body 130 having its opened both ends and wrapping around the first sensing body 110 such that it can form a water storing and flowing chamber 121 for receiving water for the boiler between the first sensing body 110 and the outer shell body 130. At this time, the first sensing body 110 and the outer shell body 130 are fixed to each other by means of a pair of covers 140a, 140b screw-coupled with the upper and lower ends of the outer shell body 130, respectively. Here, the cover 140b screw-coupled with the lower end of the outer shell body 130 has a hole 141b formed thereon for communicating the outside and inside of the first sensing body 110, so that the operation of the first magnetic field induction means 1 can be smoothly carried out. Also, the cover 140a preferably has a hole 141a formed thereon in such a manner as to be smaller than the hole 141b. Further, the first magnetic field induction means 1 is formed in a circular shape in cross-section and mounted on the inner peripheral surface of the first sensing body 110. At this time, the first sensing body 110 has a ring-shaped retaining step 111 inwardly protruded from the lower end of the inner peripheral surface thereof for allowing the first magnetic field induction means 1 to be seated thereon.

The water storing and flowing chamber 121 is formed between a pair of first flanges 113 outwardly protruded from the upper and lower ends of the first sensing body 110, both of which abut against the inner peripheral surface of the outer shell body, respectively. Here, the first flanges 113 have a ring-shaped packing member 115, which is made of a resin material such as a rubber, mounted on the outer peripheral surfaces thereof, respectively, so that the packing member 115 can abut against the inner peripheral surface of the outer shell body 130, thereby providing watertightness to the water storing and flowing chamber 121. At this time, the outer shell body 130 preferably has a groove 131 formed on both ends thereof, respectively, so as to abut against the first flanges 113, so that the first flanges 113 can be fittingly coupled to the groove 131.

Further, the water storing and flowing chamber 121 has a pair of socket members 301a, 301b mounted on the upper and lower portions thereof, respectively, in such a manner as to pass through the outer shell body 130, so that a pair of water circulation lines 201 are inserted thereto to be fittingly coupled thereto, respectively, to thereby allow water to flow in and out through the water circulation line 201. Here, the water circulation lines 201 are arranged in living room, washroom and the like so as to supply heating water for heating a room and hot water for bathing. In this regard, the water for the boiler flows into the lower portion of the water storing and flowing chamber 121 from the outside, and then is heated and discharged to the outside through the upper portion of the water storing and flowing chamber 121 while circulating along the periphery of the water storing and flowing chamber 121. In other words, the socket member 301b mounted in the lower portion of the water storing and flowing chamber 121 is a water entrance side, and the socket member 301a mounted in the upper portion of the water storing and flowing chamber 121 is a water discharge side. At this time, the socket members 301a, 301b have a screw portion formed on the outer and inner peripheral surfaces thereof, respectively, so as to screw- couple with the outer shell body 130 and the water circulation line 201. Meanwhile, the first sensing body 110 includes a first iron cylindrical body 117, and a first aluminum cylindrical body 119 integrally mounted with the outer peripheral surface of the first iron cylindrical body 117. Here the first iron cylindrical body 117 is opposed to the first magnetic field induction means 1, and the first aluminum cylindrical body 119 is opposed to the water storing and flowing chamber 121. The first iron cylindrical body 117 performs a function in which the heat obtained by responding to the magnetic field induced by the first magnetic field induction means 1 is applied to the first aluminum cylindrical body 119. In this way, the first aluminum cylindrical body 119 can heat the water flowing from a downstream portion to an upstream portion of the water storing and flowing chamber 121 by means of the obtained heat. Further, the first magnetic field induction means 1 has a coil Ia thickly wound along the outer peripheral surface thereof such that a magnetic field is induced by supplying the power source applied from the outside to the coil Ia. 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 coil Ia, the magnetic field is induced in a perpendicular direction to the coil Ia such that the first iron cylindrical body 117 that is mounted in the direction where the magnetic field is formed is thermally responsive to the magnetic field.

In this manner, the first iron cylindrical body 117 that thermally responds to the magnetic field is fixedly coupled with the first aluminum cylindrical body 119 as an integral piece with each other at the time of casting the first aluminum cylindrical body 119. At this time, the first iron cylindrical body 117 has a plurality of coupling holes 117a formed thereon such that the cast is poured and filled thereto at the time of casting the first aluminum cylindrical body 119, thereby enhancing the coupling force the first iron cylindrical body 117 between the first aluminum cylindrical body 119. The plurality of coupling holes 117a is formed in such a manner as to be inclined. As shown in the expanded parts in the circle of FIG. 4, therefore, the plurality of coupling holes 117a is formed such that the first iron cylindrical body 117 and the first aluminum cylindrical body 119 are coupled to have the reverse inclined surface to each other. As a result, the first iron cylindrical body 117 is not readily separated from the first aluminum cylindrical body 119. Meanwhile, a heating insulating means 400 is mounted to the outer periphery of the metal cylindrical body 100 so as to prevent the heat loss of the water heated in the water storing and flowing chamber 121. The heating insulating means 400 includes a second magnetic field induction means 410 mounted to the outer periphery of the outer shell body 130 and adapted to induce a magnetic field, a cylindrical second sensing body 430 mounted between the second magnetic field induction means 410 and the outer shell body 130 so as to form a hollow space portion 421 therebetween and adapted to respond to the magnetic field induced by the second magnetic field induction means, the cylindrical second sensing body having its opened both ends, and oil 441 filled in the hollow space portion 421.

The second sensing body 430 includes a second iron cylindrical body 431 and a second aluminum cylindrical body 433. As the second sensing body 430 has an identical construction with that of the first sensing body 110, the detailed description will be omitted. The second iron cylindrical body 431 applies the heat obtained by responding to the magnetic field induced by the second magnetic field induction means 410 to the second aluminum cylindrical body 433. In this way, the second aluminum cylindrical body 433 can heat the oil 441 filled in the hollow space portion 421 by means of the obtained heat. Further, the heated oil 441 heats the outer shell body 130, so that heat loss of the water heated in the water storing and flowing chamber 121 can be effectively prevented and the energy required for the first magnetic field induction means 1 can be significantly reduced. At this time, the outer shell body 130 is preferably made of an aluminum material having a thermal conductivity. The oil 441 can be an insulation oil or a heat transfer oil and the like. The second magnetic field induction means 410 has a coil 411 thickly wound along the inner peripheral surface thereof such that a magnetic field is induced by supplying the power source applied from the outside to the coil 411.

The second sensing body 430 is fixed to the outer shell body 130 by means of the covers 140a, 140b. The second magnetic field induction means 410 is preferably mounted between the cover 140a and 140b. The socket members 301a, 301b pass through the second magnetic field induction means 410, the second sensing body 430, and the outer shell body 130 in this order, so that the socket members 301a, 301b can communicate with the water storing and flowing chamber 121. The hollow space portion 421 is formed between a pair of second flanges 137 outwardly protruded from the upper and lower ends of the outer shell body 130, both of which abut against the inner peripheral surface of the second sensing body 430, respectively. Here, the second flanges 137 preferably have a second packing member 139, which is made of a resin material such as a rubber, mounted on the outer peripheral surfaces thereof, respectively, so that the packing member 139 can abut against the inner peripheral surface of the outer shell body 130, thereby providing watertightness to the water storing and flowing chamber 121. At this time, the second sensing body 430 preferably has a groove 433a formed on both ends thereof, respectively, so as to abut against the second flanges 137, so that the second flanges 137 can be fittingly coupled to the groove 443a. Further, the second flanges outwardly protruded from the lower end of the outer shell body 130 preferably has a through-hole 132 formed thereon, such that it is opened and closed by means of a bolt member 451 so as to allow the inside and outside of the hollow space portion 421 to communicate with each other therethrough. Here, the through-hole 142 performs a function in which the oil 441 is filled in or extracted from the hollow space portion 421. [industrial Applicability]

As described above, according to an induction boiler of the present invention, water is heated with the heat obtained by thermally responding to a magnetic field induced from a power source, thereby greatly reducing the fuel costs in use to give much economical saving. Also the induction boiler is relatively simple in structure, thereby making it easy to manufacture, and is relatively easy in the adjustment of size, thereby making it easy to install even in a relatively small area.

Claims

[CLAIMS]

[Claim l]

An induction boiler comprising: a metal cylindrical body including a water storing and flowing chamber formed therein for allowing water to flow in and out along the periphery of the water storing and flowing chamber; and a first magnetic field induction means mounted on the inner peripheral surface of the metal cylindrical body and adapted to heat the water storing and flowing chamber, wherein the water stored arid flowed in the water storing and flowing chamber is heated to a predetermined temperature by means of the heat generated by allowing the metal cylindrical body to be responsive to the magnetic field induced by the first magnetic field induction means. [Claim 2]

The induction boiler according to claim 1, wherein the first magnetic field induction means is formed in a circular shape in cross-section.

[Claim 3] The induction boiler according to claim 1, wherein the metal cylindrical body includes: a cylindrical first sensing body having its opened both ends and adapted to wrap around the first magnetic field induction means so as to respond to the magnetic field induced by the first magnetic field induction means; a cylindrical outer shell body having its opened both ends and adapted to wrap around the cylindrical first sensing body so as to form the water storing and flowing chamber therebetween; and a pair of covers coupled to the both ends of the cylindrical outer shell body and adapted to fix the first sensing body and the outer shell body thereto. [Claim 4 ]

The induction boiler according to claim 3, wherein the water storing and flowing chamber is formed between a pair of first flanges outwardly protruded from the upper and lower ends of the first sensing body, both of which abut against the inner peripheral surface of the outer shell body, respectively. [Claim 5]

The induction boiler according to claim 4, wherein the first flanges further comprises a first packing member mounted on the outer peripheral surfaces thereof, respectively, so as to provide watertightness to the water storing and flowing chamber. [Claim β]

The induction boiler according to claim 3, wherein any one of the covers further has a hole formed thereon so as to allow the inside and outside of the first sensing body to communicate with each other therethrough. [Claim 7]

The induction boiler according to claim 3, wherein the water storing and flowing chamber further has a pair of socket members mounted on the upper and lower portions thereof, respectively, in such a manner as to pass through the cylindrical outer shell body, so that a pair of water circulation lines are inserted thereto to be fittingly coupled thereto, respectively, to thereby allow water to flow in and out through the water circulation line. [Claim 8]

The induction boiler according to claim 7, wherein the socket members have a screw portion formed on the outer and inner peripheral surfaces thereof, respectively, for screw-coupling with the outer shell body and the water circulation line for the boiler. [Claim 9]

The induction boiler according to claim 3, wherein the first sensing body has a ring-shaped retaining step inwardly protruded from any one of the inner peripheral surfaces of the upper and lower ends thereof and adapted to allow the first magnetic field induction means to be seated thereon. [Claim lθ]

The induction boiler according to claim 3, wherein the first sensing body includes: a first iron cylindrical body for emitting heat by responding to the magnetic field induced by the first magnetic field induction means; and a first aluminum cylindrical body integrally formed with the first iron cylindrical body so as to heat the water in the water storing and flowing chamber by means of the heat of the first iron cylindrical body. [Claim 11]

The induction boiler according to claim 10, wherein the first iron cylindrical body is fixedly coupled integrally with the first aluminum cylindrical body at the time of casting the first aluminum cylindrical body. [Claim 12]

The induction boiler according to claim 11, wherein the first iron cylindrical body has a plurality of coupling holes formed thereon such that the cast is poured and filled thereto at the time of casting the first aluminum cylindrical body, thereby enhancing the coupling force between the first iron cylindrical body and the first aluminum cylindrical body. [Claim 13]

The induction boiler according to claim 12, wherein the plurality of coupling holes is formed inclinedly. [Claim 14]

The induction boiler according to claim 3, wherein a heating insulating means is mounted to the periphery of the metal cylindrical body so as to prevent the heat loss of the water heated in the water storing and flowing chamber, and wherein the heating insulating means includes: a second magnetic field induction means mounted to the outer periphery of the outer shell body and adapted to induce a magnetic field; a cylindrical second sensing body mounted between the second magnetic field induction means and the outer shell body so as to form a hollow space portion therebetween and adapted to respond to the magnetic field induced by the second magnetic field induction means, the cylindrical second sensing body having its opened both ends; and oil filled in the hollow space portion. [Claim 15]

The induction boiler according to claim 14, wherein the second sensing body is fixed to the outer shell body by means of the covers . [Claim lβ] The induction boiler according to claim 15, wherein the hollow space portion is formed between a pair of second flanges outwardly protruded from the upper and lower ends of the outer shell body, both of which abut against the inner peripheral surface of the second sensing body, respectively. [Claim 17]

The induction boiler according to claim 16, wherein the second flanges further have a second packing member mounted on the outer peripheral surfaces thereof, respectively, so as to provide watertightness to the hollow space portion. [Claim 18] The induction boiler according to claim 16, wherein any one of the second flanges further have a through-hole formed thereon, such that it is opened and closed by means of a bolt member so as to allow the inside and outside of the hollow space portion to communicate with each other therethrough. [Claim 19]

The induction boiler according to claim 14, wherein the second sensing body includes: a second iron cylindrical body for emitting heat by responding to the magnetic field induced by the second magnetic field induction means; and a second aluminum cylindrical body integrally formed with the second iron cylindrical body so as to heat the oil filled in the hollow space portion by means of the heat of the second iron cylindrical body.

[Claim 20] The induction boiler according to claim 19, wherein the second iron cylindrical body is fixedly coupled integrally with the second aluminum cylindrical body at the time of casting the second aluminum cylindrical body.

[Claim 21] The induction boiler according to claim 20, wherein the second iron cylindrical body further has a plurality of coupling holes formed thereon, such that the cast is poured and filled thereto at the time of casting the second aluminum cylindrical body, thereby enhancing the coupling force between the second iron cylindrical body and the second aluminum cylindrical body. [Claim 22]

The induction boiler according to claim 21, wherein the plurality of coupling holes is formed inclinedly. [Claim 23] The induction boiler according to claim 14, wherein the outer shell body is made of an aluminum material.