KR101515880B1 - Electric boiler heat exchanger - Google Patents

Abstract

The present invention enables a plurality of heat exchangers to be radially installed about a heater. Therefore, the heater for an electric boiler stores heat generated in the heater and improves thermal efficiency by the same power so as to increase the indoor temperature in a short period of time. According to the present invention, the heat exchanger for an electric boiler flash heats heating water. The heat exchanger comprises: a first protection pipe positioned inside a chamber for heat exchange and where a first heating water supply pipe is connected to the upper side and a second heating water return pipe is connected to the outer circumferential surface of the lower side; a first heat storage tank positioned inside the first protection pipe and having a plurality of ceramic balls inside the tank and storing the heat generated in a heater unit; and a first coil spring fastened and fixated to the outer circumferential surface of the first heat storage tank and enabling the heating water to be moved while the heating water spirally is rotated along the outer circumferential surface of the first heat storage tank.

Description

{Electric boiler heat exchanger}

The present invention relates to a heat exchanger for an electric boiler, and more particularly, to a heat exchanger for an electric boiler, in which a plurality of heat exchangers are radially installed around a heater, thereby storing heat generated by the heater, To a heater for an electric boiler.

Generally, an oil boiler or a gas boiler is mainly used, and a boiler using such oil or gas generates a flame by oil or gas, and a water heater such as a copper pipe is heated by the flame, The heating medium (water) charged inside is heated and the heated heating medium is supplied to the heating and hot water.

In recent years, the use of oil and gas boilers has been gradually decreasing due to the continuous rise in oil and gas prices. In order to replace the oil and gas boilers, the use of electric boilers with higher durability and safety is extremely increased It is true.

In addition, a conventional electric boiler system for heating a heating medium such as water or oil includes a heater formed with an inlet and an outlet, and a hollow portion formed therein so that a heating medium can be received. In the hollow portion of the heater, And the heating medium charged in the hollow portion is caused to circulate through the circulating pump to the hot water and the heating water pipe by the heating pump.

However, in the conventional boiler system as described above, the heating medium can be heated by the electric heater partly inwardly penetrated into the hollow portion. That is, the heating medium can be heated at the portion where the heating medium comes into contact with the electric heater, The heat source is not sufficiently transmitted to the main body, so that a considerable amount of time is consumed in the heating of the heating medium filled in the main body, resulting in power consumption.

In addition, there is a limit to instantaneously raise the temperature of the heating water within a short time, and there is a problem that power consumption is increased due to low thermal efficiency.

Further, when water in the water tank is heated, it takes a long time to raise the temperature because the water is stagnated until the temperature of the water rises.

Korean Patent No. 10-0833692 (registered on May 23, 2008) Korean Patent Publication No. 2002-0029543 (published on Apr. 19, 2002) Korean Registered Utility Model No. 20-0203350 (registered on September 05, 2000) Korean Registered Patent No. 10-0954773 (registered on Apr. 19, 2010)

The present invention relates to a method for preventing heat loss and corrosion of a space portion inside a housing by keeping a space portion in a housing in a vacuum state to prevent heat loss by using heat generated from the heater by using a heat exchanger, And a heat exchanger for the electric boiler is provided.

Another object of the present invention is to provide a heat exchanger for an electric boiler in which heating water can be rapidly heated by a plurality of heat exchangers, thereby simplifying the structure of piping and minimizing the maintenance and trouble of the boiler.

Also, the present invention provides a heat exchanger for an electric boiler, which does not require a separate hot water heating device by connecting a heat exchanger to hot water, and changes the direct water to hot water in a minimum time to improve boiler performance and maximize thermal efficiency have.

According to the present invention, liquid is injected into the heating water heat exchanger, heat is generated in the heat exchanger while the liquid and the ceramic ball receive heat from the heater, and when the heating water moves, And the outside of the heat exchanger is heat exchanged at the same time.

It is another object of the present invention to provide a heating-type electric boiler system in which even when the heater is turned off, the temperature of the heating water rises even during the operation of the circulating motor,

The various problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

A heat exchanger for an electric boiler according to the present invention includes: a first protective pipe positioned inside a heat exchange chamber, a first heating water supply pipe connected to the upper side, and a first heating water return pipe connected to a lower side outer peripheral surface; A first storage tank located inside the first protection pipe and having a plurality of ceramic balls therein to store heat generated in the heater; And a first coil spring which is fastened and fixed to the outer circumferential surface of the first heat storage tank so that the heating water can be moved while being spirally rotated along the outer circumferential surface of the first heat storage tank, The transferred heat loss heat that has been transferred can be firstly heated by the first coil spring and heat-exchanged by the ceramic balls provided in the first heat storage tank to be secondarily heated.
The heater includes a steam generating unit which is fastened between a steam transfer pipe and a heating water transfer pipe and has a plurality of ceramic balls therein; A ceramic tube fastened and fixed to surround an outer peripheral surface of the steam generating part; A heat wire which is fastened and fixed in a coil shape to an outer peripheral surface of the ceramic tube and generates heat; A conductor plate which is respectively located on the upper side and the lower side so as to seal the inside of the ceramic tube and which is fastened and fixed to one end and the other end of the heat line; And an electrode which is fastened to the conductor plate and supplies electricity to the hot wire through the conductor plate.
In the first protection pipe, the heat-lost return heating water, which is moved through the first heating water return pipe, is firstly heated by the first coil spring, heat-exchanged by the ceramic balls provided in the first heat storage tank, The first coil spring and the ceramic ball may exchange heat with the heat loss water that has been lost in the state where the first coil spring and the ceramic ball receive the radiant heat generated by the heater.
The first heat storage tank receives the heat generated from the heater at a predetermined temperature and is stored. The interior of the heat storage tank can be maintained in a vacuum state so that stored heat can be stored for a long period of time.
A second protective pipe provided on the upper side with a second heating water supply pipe; A pipe pipe installed and fixed at a predetermined distance from the inner wall of the second protective pipe; A second coil spring fastened and fixed to an outer circumferential surface of the pipe tube to store heat generated in the heater; A second heat storage tank located inside the pipe tube and formed in a shape penetrating through the center and having a plurality of ceramic balls for storing heat generated from the heater; A third coil spring fastened to the outer circumferential surface of the second heat storage tank and storing heat generated by the heater; And an auxiliary heat exchanger having a second heating water return pipe connected to the lower heat storage tank through which the return water flows, the auxiliary heat exchanger being installed and fixed between the radiant heat exchangers .
In the auxiliary heat exchanger, the return heating water conveyed through the second heating water return pipe is heat-exchanged with the ceramic ball while passing through the inside of the second heat storage tank, and the first heated hot water is again conveyed through the pipe pipe 2 coil spring, and the secondarily heated return water is heat-exchanged again with the third coil spring through the second protective pipe and can be tertiary heated.

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The details of other embodiments are included in the detailed description and drawings.

The heat exchanger for an electric boiler according to the present invention maintains a vacuum state in a space inside a housing to prevent corrosion of the lifetime of the heating wire and prevent heat loss by using heat generated from the heater by a heat exchanger, There is an effect that the heated water to be transferred is heat-exchanged by a ceramic ball or a coil spring to achieve rapid heat absorption.

In addition, the heat exchanger for electric boiler according to the present invention has a plurality of heat exchangers that can rapidly heat the heating water, thereby simplifying maintenance due to piping installation, and minimizing the malfunction of the boiler.

In addition, the heat exchanger for electric boiler according to the present invention has a heat exchanger connected to hot water, thus eliminating the need for a separate hot water heating device. The hot water can be rapidly changed into hot water at a minimum time, thereby improving boiler performance and maximizing thermal efficiency .

In the heat exchanger for electric boiler according to the present invention, a liquid is injected into a heating water heat exchanger, heat is generated in the heat exchanger while heat is transmitted to the liquid and the ceramic ball by a heater, There is an effect that the heat exchange inside and outside of the heating water at the same time when moving.

Further, the heat exchanger for electric boiler according to the present invention has the effect of raising the temperature by its own heat storage function even when the electric power supply to the heater is blocked, and also the temperature of the heating water is increased even when the circulating motor operates.

It will be appreciated that various embodiments of the present invention may provide various effects not specifically mentioned.

FIG. 1 is a schematic view showing the electric boiler premises of a heat exchanger for an electric boiler according to the present invention.
2 is a cross-sectional view of a heat exchanger of a heat exchanger for an electric boiler according to the present invention.
3 is a cross-sectional view of an auxiliary heat exchanger of a heat exchanger for an electric boiler according to the present invention.
4 is a cross-sectional view of a hot water heat exchanger in an electric boiler of a heat exchanger for an electric boiler according to the present invention.
5 is a top view of an electric boiler of a heat exchanger for an electric boiler according to the present invention.
6 is a cross-sectional view illustrating a heater for an electric boiler in a heat exchanger for an electric boiler according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

The terms first, second, etc. 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. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may be referred to as a first component.

Terms such as top, bottom, top, bottom, or top, bottom, etc. are used to distinguish relative positions in components. For example, in the case of naming the upper part of the drawing as upper part and the lower part as lower part in the drawings for convenience, the upper part may be named lower part and the lower part may be named upper part without departing from the scope of right of the present invention .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of a heater for an electric boiler according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of a heat exchanger of a heat exchanger for an electric boiler according to the present invention. FIG. 3 is a cross-sectional view of the heat exchanger according to the present invention. 4 is a cross-sectional view of a hot water heat exchanger in an electric boiler of a heat exchanger for an electric boiler according to the present invention, and FIG. 5 is a sectional view of a heat exchanger of a heat exchanger for an electric boiler according to the present invention, 6 is a cross-sectional view illustrating a heater for an electric boiler in a heat exchanger for an electric boiler according to the present invention.

1 to 6, a heat exchanger for an electric boiler according to the present invention may include a housing 100, a heater 200, a heat exchanger 300 auxiliary heat exchanger 400, and a hot water heat exchanger 500 have.

The housing 100 may include a heating water storage tank 110, a hot water storage tank 140, a second heating water storage tank 120, a direct water storage tank 130, and a heat exchange chamber 150.

The number of heating water and the number of return water stored and transported in the heating water storage tank 110, the hot water storage tank 140, the second heating water storage tank 120, and the direct water storage tank 130, respectively, , The number of return heating water, and the number of hot water are all the same heat medium.

The heating water storage tank 110 may be disposed on the upper side of the housing 100 and may be provided to transfer the heating water to the domestic or industrial heating pipe 20. The heating water storage tank 110 may be formed in a cylindrical shape and may be formed in a donut shape having a center through which the heater 200 can be inserted. The heating water storage tank 110 is connected to the replenishing water storage tank 30 on the upper side and can receive direct water from the replenishing water storage tank 30. The heating water storage tank 110 may include a heating water discharge pipe 113, a steam transfer pipe 111 and a sensor 115.

One end of the steam transfer pipe 111 is connected to the upper side of the heater 200 and the other end of the steam transfer pipe 111 is connected to the heating water storage tank, and the steam generated in the heater 200 is transferred to the heating water storage tank 110 .

The heating water pipe 113 is connected at one end to the heating water storage tank 110 and at the other end to the one end of the heating pipe. The heating water stored in the heating water storage tank 110 is supplied to the circulation motor 123 To the heating pipe (20).

The sensor 115 may be installed inside the heating water storage tank 110 and may be provided to sense the internal temperature of the heating water storage tank 110. The sensor 115 is electrically connected to the control unit and can be operated when the internal temperature of the heating water storage tank 110 is detected to be higher than a preset temperature through the control unit. When the sensor 115 is operated, the heating water stored in the heating water storage tank 110 is operated by the circulation motor 123 electrically connected to the control unit and is moved to the heating pipe 20 through the heating water discharge pipe 113 .

The second heating water storage tank 120 is located on the inner peripheral surface of the housing 100 and is formed in a cylindrical shape and may be provided to store the return heating water transferred through the heating pipe 20. The second heating water storage tank 120 may include a heating water inlet pipe 121 and a heating water feed pipe 125. Here, the return heating water refers to the heating water whose temperature has been lowered through the heating pipe 20 at a high temperature.

One end of the heating water pipe 121 is connected to the other end of the heating pipe 20 and the other end of the heating water pipe 121 is connected to the second heating water storage tank 120. The return heating water, And may be provided to be transferred to the water storage tank 120. The heating water supply pipe 121 may include a circulation motor 123.

The circulating motor 123 may be connected to the heating water inlet pipe 121 to transfer the heating water stored in the heating water storage tank 110 to the second heating water storage tank 120.

The heating water conveyance pipe 125 may be connected to the second heating water storage tank 120 at one end and to the lower side of the heater 200 to supply the heating water to the heater 200 . The heating water conveyance pipe 125 may include a valve 127.

The valve 127 is fixed to the heating water transfer pipe 125 and the heating water stored in the heater 200 may be provided to supply or cut off the heating water which is reduced while steam is generated by the heat of the heater 200 .

The direct water storage tank 130 is located at the lower end of the housing 100 and may be provided for receiving and storing direct water. The direct water storage tank 130 may be provided with a direct water inlet pipe 131 having one end connected to the water receiver and the other end fastened and fixed to the outer peripheral surface of the direct water storage tank 130.

The hot water storage tank 140 is formed in a cylindrical shape so as to surround the outer circumferential surface of the heating water storage tank 110. The direct water conveyed from the direct water storage tank 130 is heated through the hot water heat exchanger 500, For example. The hot water storage tank 140 may be connected to a hot water outlet pipe 141 for transferring the hot water stored therein to the outside so as to be used for domestic or industrial use.

The heat exchange chamber 150 is located below the heating water storage tank 110 and can be evacuated by the heat generated in the heater 200 in the internal space. When the inside of the heat exchange chamber 150 is in a vacuum state, the respective heat storage tanks provided in the heater 200, the heat exchanger 300, the auxiliary heat exchanger 400 and the hot water heat exchanger 500 The heat efficiency can be maximized and the heat transfer can be performed quickly.

The heater 200 is located at the center of the housing 100 and may be provided to transmit heat to the heat exchanger 300, the auxiliary heat exchanger 400, and the hot water heat exchanger 500, respectively. The heater 200 includes a steam generating part 210, a ceramic tube 220, a heating wire 230, a conductive plate 240, a first insulating insulator 250, a fixing table 260, a ceramic bonding part 280, And may include an insulator 270.

The steam generating part 210 may be formed in a cylindrical shape having openings on the upper side and the lower side, respectively. The steam generating part 210 may be fastened and fixed by inserting a steam conveying pipe 111 into an opening formed at the upper side of the steam generating part 210 and tightly inserting the heating water conveying pipe 125 into the opening formed at the lower side. The steam generating unit 210 can be supplied with the heating water transferred through the heating water transfer pipe 125 and stored therein. The steam generating unit 210 may include a ceramic ball 211 for receiving and storing heat generated from the heating wire. Also, the heating water transferred to the steam generating unit 210 is supplied by the operator using the return heating water transferred through the heating pipe 20, and the valve 127 is selectively opened to supply the steam to the steam generating unit 210. In the control unit, It can be supplied periodically.

The ceramic ball 211 transfers heat to the heating water flowing into the steam generating unit 210 in a state of receiving the heat generated from the heating line 230 to double heat the temperature of the heating water, The temperature can be rapidly increased to generate steam.

The ceramic tube 220 may be formed in a pipe shape so as to surround the outer circumferential surface of the steam generating part 210.

The heat line 230 may be provided to generate heat by receiving electricity from the outside. The heat line 230 may be formed in a coiled state on the outer circumferential surface of the ceramic tube 220. One end and the other end of the heat line 230 are respectively connected to the conductive plate 240 and the electricity can be supplied by the electrode 241 connected to the conductive plate 240. The heat line 230 may be formed by sealingly fastening the ceramic pipe 220 to the outer circumferential surface of the ceramic pipe 220 by using a ceramic adhesive 231 to prevent the pipe 230 from being stretched or deformed due to high temperature.

The conductor plate 240 is disposed on the upper and lower sides of the ceramic tube 220 and is formed in a circular plate shape so as to close the inside of the ceramic tube 220. The steam transfer tube 111 and the heating water transfer tube 125 are penetrated And can be fastened and fixed. The conductive plate 240 may be provided to supply electricity to the heat line 230. That is, one end of the heat line 230 is connected to the upper conductor plate, and the other end is connected to the lower conductor plate to supply electricity to the heat line 230.

The first insulation insulator 250 may be provided to prevent electricity from being transmitted to the steam transfer pipe 111 and the heating water transfer pipe 125 inserted into the conductive plate 240. The first insulation insulator 250 may be inserted into and fixed to the ceramic pipe 220 through the conductive plate 240 while being fitted to the outer circumferential surfaces of the steam transfer pipe 111 and the heating water transfer pipe 125.

The fixing table 260 is fixed to the outer surface of the first insulation insulator 250 and fastened to the housing 100 so that the inside of the heat exchange chamber 150 is sealed.

The second insulation insulator 270 may be inserted and fixed on the outer circumferential surface of the electrode 241 in order to prevent electricity generated from the electrode 241 that receives the external electricity from being transmitted to the fixing table 260.

The ceramic adhesive portion 280 is coated with a ceramic adhesive on the fixing table 260 to block air from flowing between the first insulating insulator 250 and the second insulating insulator 270 that are coupled to the fixing table 260 It can be sealed.

A plurality of heat exchangers 300 may be radially spaced apart from the center of the heater 200 and fixed to the heat exchange chamber 150. The heat exchanger 300 may be provided to raise the temperature of the heating water transferred from the second heating water storage tank 120 to the heating water storage tank 110. The heat exchanger 300 may include a first protection pipe 310, a first heat storage tank 320, and a first coil spring 330.

The first protection pipe 310 may be formed in a cylindrical shape, and a first heating water return pipe 311 may be provided on the lower outer circumferential surface thereof, and a first heating water supply pipe 313 may be provided on the upper side thereof.

One end of the first heating water return pipe 311 may be connected to the second heating water storage tank 120 and the other end may be connected to the outer circumferential surface of the first protection pipe 310 while being separated from the bottom surface of the first protection pipe 310. The first heating water return pipe 311 may be provided to transfer the return heating water stored in the second heating water storage tank 120 to the inside of the first protection pipe 310.

The first heating water supply pipe 313 is connected at one end to the upper side of the first protection pipe 310 and the other end is connected to the heating water storage tank 110. The heating water transferred through the first protection pipe 310, (Not shown).

The first heat storage tank 320 may be provided to receive and store heat generated from the heater 200. The first storage tank 320 is installed inside the first protection pipe 310 and may include a plurality of ceramic balls 211 therein.

The first storage tank 320 may be formed in a vacuum state so that the heat stored in the ceramic balls 211 provided therein may be stored for a long time. The first heat storage tanks 320 are formed in a plurality of radially spaced apart spaces around the heaters 200. The first heat storage tanks 320 are arranged to receive the heat generated from the heaters 200 at a predetermined temperature and store the heat. The inside of the heat storage tank can be kept in a vacuum state. The first storage tank 320 may be formed so as to be hermetically sealed at a position spaced from the bottom surface of the first protection pipe 310 by a predetermined distance so that heat generated from the heater 200 may be directly transferred to the ceramic ball 211 have. The first storage tank 320 is filled with a predetermined amount of liquid 340 to store heat generated in the heater, so that the temperature inside the first storage tank 320 can be maintained at a high temperature even when the heater is turned off. The liquid 340 can be any liquid as long as it can store heat at a high temperature for a long time.

The first coil spring 330 may be formed in a coiled state on the outer circumferential surface of the first heat storage tank 320. The first coil spring 330 may be provided so that the heating water can be moved while being spirally rotated along the outer circumferential surface of the first heat storage tank 320. The first coil spring 330 may be formed of a material capable of receiving and storing heat generated from the heater 200.

In the heat exchanger 300 constructed as described above, the return heating water conveyed through the first heating water return pipe 311 is transferred in the spiral direction by the first coil spring 330, and the return heating water flows through the first coil spring 330 And the heat stored in the ceramic ball 211 provided in the first heat storage tank 320 is transferred to the heating water storage tank 110 while being secondarily heated . On the other hand, the double heating water for return has an effect of raising the temperature without heating by a separate heating device, and can be transferred to the heating water storage tank 110 for storage.

A plurality of auxiliary heat exchangers 400 may be provided between the plurality of heat exchangers 300 and may be fastened and fixed to the heat exchange chamber 150. The auxiliary heat exchanger 400 may include a second protection pipe 410, a pipe pipe 420, a second heat storage tank 430, and a second coil spring 421.

A second heating water supply pipe 413 is provided on the upper side of the second protection pipe 410 so that the return heating water is transferred to the heating water storage tank 110, Can be connected.

The second heating water supply pipe 413 may be connected at one end to the upper side of the second protection pipe 410 and at the other end to the heating water storage tank 110.

The upper side of the pipe pipe 420 is closed and the lower side of the pipe pipe 420 is open. The pipe pipe 420 may be fixed to the inner wall of the second protection pipe 410 at a predetermined distance. The pipe pipe 420 may be provided with a second coil spring 421 formed in a coiled state so as to be tightly fixed to the outer circumferential surface and closely contacted. The second coil spring 421 may be provided so that the heating water can be moved while being spirally rotated along the outer circumferential surface. The second coil spring 421 may be formed of a material capable of receiving and storing heat generated from the heater 200.

The second heat storage tank 430 may be connected to the second heating water return pipe 411 so that the inner space is formed, the center is penetrated, and the return heating water flows into the lower end of the second storage tank 430. The second thermal storage tank 430 may include a plurality of ceramic balls 211 in its inner space. The second heat accumulating tank 430 may be provided with a third coil spring 431 formed in a coil-like state so as to be tightly fixed to the outer circumferential surface and closely contacted.

The third coil spring 431 may be formed of a material capable of receiving and storing heat generated from the heater 200.

In the auxiliary heat exchanger 400 configured as described above, the return heating water conveyed through the second heating water return pipe 411 is firstly heated by the ceramic ball 211, and the first heating water, The second coil spring 421 rotates while being spirally rotated by the second coil spring 421. At the same time, the heat stored in the second coil spring 421 is transferred to the return heating water, The second heated water is returned to the outside of the pipe pipe 420 and transferred to the second protective pipe 410 and the pipe pipe 420 while being discharged to the outside through the third coil spring 431 wound on the outer peripheral surface of the pipe pipe 420 . The return heating water can be heated by the third coil spring 431 while receiving the heat stored in the third coil spring 431. On the other hand, the heating water heated to three times has the effect of maximizing the heat efficiency with the same power as the heater which is directly used in direct water.

The hot water heat exchanger 500 may be provided to change the direct water stored in the direct water storage tank 130 to hot water used for domestic or industrial use. The hot water heat exchanger 500 may be disposed in the heat exchange chamber 150 and may be radially spaced apart from the auxiliary heat exchanger 400. The hot water heat exchanger 500 may include a hot water supply pipe 510, a direct water pipe 520, and a hot water pipe 530.

The hot water supply pipe 510 may be provided with an enclosed enclosure 511 installed at the center of the interior and a fourth coil spring 513 tightly fixed to the outer enclosure of the enclosure 511 to be closely contacted.

The enclosure 511 may be provided to store heat generated in the heater 200 and to transmit heat to the steam at a time when direct water flows through the hot water supply pipe 510.

The fourth coil spring 513 is the same as the third coil spring 431 described above, and a detailed description thereof will be omitted.

The direct water pipe 520 may be connected to the direct water storage tank 130 at one end and connected to the lower side of the hot water supply pipe 510 to transfer the direct water stored in the direct water storage tank 130.

The hot water pipe 530 is connected to the hot water storage tank 140 at one end and connected to the upper side of the hot water supply pipe 510 to transfer the hot water conveyed through the hot water supply pipe 510 to the hot water storage tank 140 .

Hereinafter, with reference to FIG. 1 to FIG. 6, the overall operation of the electric boiler system in the heat exchanger for electric boilers according to the present invention will be described in more detail.

First, the direct water stored in the makeup water storage tank (30) is transferred to the heating water storage tank (110). The temperature of the heating water stored in the heating water storage tank 110 is raised by the heat generated in the heater 200. When the temperature rises to a preset temperature in the control unit, the sensor is activated to send a signal to the control unit, and the control unit, which receives the signal, operates the circulation motor 123 again.

Next, the heating water, which is moved by the circulation motor (), is transferred again to the second heating water storage tank 120 through the heating pipe 20, where the return water is transferred to the second heating water storage tank 120 The heating water is in a state where the temperature is lowered.

When the valve 127 of the heating water conveyance pipe 125 is opened to quickly raise the temperature of the heating water stored in the heating water storage tank 110, The heating water is fed to the steam generator 210 through the heating water conveyance pipe 125 by a predetermined amount. When the steam generating part 210 is filled with a certain amount of heating water, the valve 127 is closed to cut off the supply of the heating water.

The heating water stored in the second heating water storage tank 120 is returned to the heating water storage tank 110 through the heat exchanger 300 and the auxiliary heat exchanger 400 to raise the temperature again. . At this time, the temperature of the return heating water transferred through the heat exchanger 300 and the auxiliary heat exchanger 400 can be increased.

Accordingly, by using the heat exchanger 300 and the auxiliary heat exchanger 400, the heat efficiency is maximized with the same electric power as that of the conventional electric boiler, and the heating water is instantaneously raised in temperature.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. It can be understood that It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect.

10; Electric boiler 20; Heating pipe
30; Replenishment water storage tank 100; housing
110; Heating water storage tank 111; Steam transfer pipe
113; Heating water outlet pipe 115; sensor
120; A second heating water storage tank 121; Heating water supply pipe
123; A circulating motor 125; Heating water conveying pipe
127; Valve 130; Direct water storage tank
131; Direct water inlet pipe 140; Hot water storage tank
141; Hot water outlet pipe 150; Chamber for heat exchange
200; Heater 210; The steam generator
211; A ceramic ball 220; Ceramic tube
230; Heat line 231; Ceramic adhesive
240; Conductor plate 241; electrode
250; A first insulation insulator 260; Fixture
270; A second insulation insulator 280; Ceramic adhesive
300; Heat exchanger 310; The first protective pipe
311; A first heating water return pipe 313; The first heating water supply pipe
320; A first storage tank 330; The first coil spring
400; Auxiliary heat exchanger 410; Second protective pipe
411; A second heating water return pipe 413; Second heating water supply pipe
420; A pipe pipe 421; The second coil spring
430; A second heat storage tank 431; The third coil spring
500; A hot water heat exchanger 510; Hot water supply pipe
511; Bundle 513; The fourth coil spring
520; A direct water pipe 530; Hot water pipe

Claims (6)

A first protective pipe located inside the heat exchange chamber, a first heating water supply pipe connected to the upper side, and a first heating water return pipe connected to the lower side outer peripheral surface;
A first storage tank located inside the first protection pipe and having a plurality of ceramic balls therein to store heat generated in the heater; And
And a first coil spring fixedly coupled to the outer circumferential surface of the first heat storage tank and being capable of being moved while being helically rotated along the outer circumferential surface of the first heat storage tank,
The first protection tube,
Characterized in that the heat-lost return heating water, which is moved through the first heating water return pipe, is firstly heated by the first coil spring, heat-exchanged by the ceramic balls provided in the first heat storage tank, Heat exchanger.
The method according to claim 1,
The heater,
A steam generating unit fastened between the steam transfer pipe and the heating water transfer pipe and having a plurality of ceramic balls therein;
A ceramic tube fastened and fixed to surround an outer peripheral surface of the steam generating part;
A heat wire which is fastened and fixed in a coil shape to an outer peripheral surface of the ceramic tube and generates heat;
A conductor plate which is respectively located on the upper side and the lower side so as to seal the inside of the ceramic tube and which is fastened and fixed to one end and the other end of the heat line; And
And an electrode which is fastened to the conductor plate and supplies electricity to the heat line through the conductor plate.
The method according to claim 1,
The first protection tube,
The heat-lost return heating water, which is moved through the first heating water return pipe, is firstly heated by the first coil spring, heat-exchanged by the ceramic balls provided in the first heat storage tank,
Wherein the first coil spring and the ceramic ball exchange heat with the heat loss water which has been heat-lost while receiving the radiant heat generated from the heater.
The method according to claim 1,
In the first heat storage tank,
Wherein the heat generated in the heater is transferred to a predetermined temperature and stored in a vacuum state so that the stored heat can be stored for a long period of time.
A second protective pipe provided on the upper side with a second heating water supply pipe;
A pipe pipe installed and fixed at a predetermined distance from the inner wall of the second protective pipe;
A second coil spring fastened and fixed to an outer circumferential surface of the pipe tube to store heat generated in the heater;
A second heat storage tank located inside the pipe tube and formed in a shape penetrating through the center and having a plurality of ceramic balls for storing heat generated from the heater;
A third coil spring fastened to the outer circumferential surface of the second heat storage tank and storing heat generated by the heater; And
And an auxiliary heat exchanger having a second heating water return pipe connected to the lower heat storage tank through which the return water flows,
The auxiliary heat exchanger
Wherein the heat exchanger is installed and fixed between the radially disposed heat exchangers.
6. The method of claim 5,
The auxiliary heat exchanger
The return heating water transferred through the second heating water return pipe is heat-exchanged with the ceramic ball while passing through the inside of the second heat storage tank, and the first heating water, which is firstly heated, is fed again through the pipe pipe, Heat-exchanged with the third coil spring, and the secondarily heated return-heat water is heat-exchanged again with the third coil spring through the second protective pipe to be tertiary-heated.

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