KR102616761B1 - Electric boiler system with power generation means - Google Patents

Abstract

An electric boiler system having means for generating power is disclosed. An electric boiler system with power generation means according to the present invention includes an electric storage device for storing power supplied from an external power source; and a heat medium boiler configured to apply power supplied from the electric storage device to a heating element to heat heat medium oil and raise the temperature of hot water and heating water with the heat medium oil, and when the heat medium boiler is not in operation, the electric storage device It is characterized in that an auxiliary power generation means is provided to generate power by operating with power supplied from and to store the generated power in the electric storage device.

Description

Electric boiler system with power generation means {ELECTRIC BOILER SYSTEM WITH POWER GENERATION MEANS}

The present invention relates to an electric boiler system having power generation means, and more specifically, to operate a heat medium boiler while receiving and storing power from the outside, and to supplement power by operating auxiliary power generation means when the boiler is not in operation. It relates to an electric boiler system having means for generating power.

As a solution to global warming and depletion of fossil fuels, interest in new and renewable energy and development of related technologies are actively taking place. In particular, research on new and renewable energy systems such as wind power, solar power, and fuel cell systems is being actively conducted. In the case of using these, each independent, dedicated power conversion device and a device for controlling the same are manufactured or used.

In general, a solar power generation system is a system that converts light energy into electrical energy using solar cells, and is used as an independent power source or as a grid-connected solar power generation system linked to the commercial AC power system for assistance. It is used as a power source.

Meanwhile, boilers are used to provide indoor heating or hot water. These general boilers burn fossil fuels such as oil, coal, and gas, and heat water using the combustion heat. However, in the process of burning fossil fuels, there is a problem in that exhaust gases that can pollute the environment are generated, so recently, a new boiler that is emerging is an electric boiler that uses electricity.

Electric boilers are configured to use heating or hot water by heating water with a heating element.

As a prior art, an electric boiler having auxiliary power generation means is disclosed in Korean Patent Publication No. 10-2001-67842 (July 13, 2001). An electric boiler with auxiliary power generation means according to the prior art includes a storage tank 22 filled with a heat medium 20, and an electric heater 28 installed in the storage tank 22 to heat the heat medium 20. In the electric boiler configured as follows, an A/D conversion unit 10 equipped with a rectifier 14 and a smoothing circuit 16 is further provided at the power input terminal of the electric heater 28, so that AC power supplied from the power supply side is provided. It is configured to convert (12) into direct current power through the A/D conversion unit (10) and supply this converted direct current power to the electric heater (28).

According to the electric boiler having such auxiliary power generation means, the A/D conversion unit is used to convert alternating current power to direct current and supply this direct current power to the electric heater, thereby maintaining the output of the electric heater constant and the invalidity generated from alternating current. By eliminating power, it was possible to reduce power consumption by increasing efficiency, but there was a problem of requiring high power consumption.

. Republic of Korea Patent Publication No. 10-2001-67842 (July 13, 2001)

The object of the present invention is to provide a direct current electric boiler using heat medium oil, where power is supplied from the outside and stored in a battery, the heat medium boiler is operated with the stored power, and when the boiler is not in operation, auxiliary power generation means is driven to provide power. The object is to provide an electric boiler system having supplementary power generation means.

Another object of the present invention is to provide an electric boiler system having a power generation means that supplements power by driving an auxiliary power generation means using the temperature difference between hot water or heat medium oil and room temperature water in a direct current electric boiler using heat medium oil.

In addition, the problem to be solved by the present invention is not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly apparent to those skilled in the art from the description below. It will be understandable.

The above object is, according to the present invention, an electric storage device for storing power supplied from an external power source; and a heat medium boiler configured to apply power supplied from the electric storage device to a heating element to heat heat medium oil and raise the temperature of hot water and heating water with the heat medium oil, and when the heat medium boiler is not in operation, the electric storage device Electricity generated and generated by operating with power supplied from the electric power storage device is achieved by an electric boiler system having a power generation means, characterized in that it is provided with a power generation means to store the electricity produced.

The external power source may be a solar power generation device and an industrial or household outlet.

The power generation means includes: a drive motor driven by power applied from the electric storage device; and a generator for generating electricity by being rotated by the drive motor, and may be configured to generate electricity using power supplied from the electric storage device.

The power generation means may be provided with an auxiliary power generation means that converts the heat energy of the heat medium oil into electrical energy and stores it in the electric storage device when the temperature of the heat medium oil increases due to the operation of the heat medium boiler.

The auxiliary power generation means includes: a first temporary storage tank for receiving and temporarily storing heat medium oil heated from the heat medium boiler so as to generate power using the heat of the heat medium oil heated up in the heat medium boiler; a second temporary storage tank for temporarily storing room temperature water supplied from the heat medium boiler; And one side is exposed to the heat medium oil of the first temporary storage tank, and the other side is exposed to room temperature water in the second temporary storage tank, and may be made of a thermoelectric element that generates electricity by the temperature difference between the heat medium oil and the room temperature water.

The auxiliary power generation means senses a first supply pipe and a first recovery pipe connected to the heat medium boiler and the first temporary storage tank and provided with valves, and the temperature of the heat medium oil temporarily stored in the first temporary storage tank. It includes a first temperature detection sensor for circulating the heat medium oil of the heat medium boiler to the first temporary storage tank when the temperature of the heat medium oil detected by the first temperature sensor is lower than the set temperature. A first circulation section that does; and a second supply pipe and a second return pipe connected to the heat medium boiler and the second temporary storage tank and provided with valves, and a second temperature for detecting the temperature of room temperature water temporarily accommodated in the second temporary storage tank. A second circulation unit including a detection sensor and a second circulation pump for circulating the room temperature water of the heat medium boiler to the second temporary storage tank when the temperature of the room temperature water detected by the second temperature detection sensor is higher than the set temperature. It can be configured.

The auxiliary power generation means includes a third temporary storage tank for temporarily storing room temperature water supplied from the heat medium boiler or the water pipe so as to generate power using the heat of the heat medium oil heated up in the heat medium boiler; an insulator disposed between the third temporary storage tank and the heat medium oil tank of the heat medium boiler; and a thermoelectric element installed on the insulator so that one side is exposed to room temperature water in the third temporary storage tank and the other side is exposed to heat medium oil contained in the heat medium oil tank to generate electricity by the temperature difference between room temperature water and heat medium oil. You can.

According to the present invention, power is supplied from the outside and stored in an electric storage device, the heat medium boiler is operated with the stored power, and when the boiler is not operated, the power generation means is driven to generate electricity to supplement the power, so that the direct current electric boiler It is possible to provide the effect of significantly saving electrical energy while maintaining excellent performance.

In addition, it is possible to generate electricity by converting thermal energy into electrical energy by using the temperature difference between hot and cold water or room temperature water and heat medium oil in the heat medium boiler, so no separate energy consumption occurs, especially the heat of heat medium oil that is heated to a high temperature. By using , it is possible to provide the effect of improving the conversion efficiency of converting thermal energy into electrical energy.

In addition, according to the present invention, since external power is temporarily stored in an electric storage device and then used in the heat medium boiler, it is possible to provide the effect of allowing the heat medium boiler to operate smoothly even if the external power is cut off (power outage, etc.). do.

1 is a schematic cross-sectional view showing an electric boiler according to the prior art.
Figure 2 is a schematic block diagram showing an electric boiler system with power generation means according to a first embodiment of the present invention.
Figure 3 is a schematic block diagram showing an electric boiler system with power generation means according to a second embodiment of the present invention.
Figure 4 is a schematic configuration diagram for explaining another embodiment of the auxiliary power generation means shown in Figure 3.
Figure 5 is a schematic configuration diagram to explain another embodiment of the auxiliary power generation means shown in Figure 3.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to make the gist of the present invention clear.

In this specification, the terminology used is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, 'comprises' and/or 'comprising' does not exclude the presence or addition of one or more other elements.

In this specification, when a component is referred to as being “connected” to another component, it should be understood that it may be directly connected to the other component, but that other components may also exist in between. On the other hand, when a component is referred to as being “directly connected” to another component, it should be understood that no other components exist in between.

In this specification, the terminology used is for the purpose of describing specific embodiments only and is not intended to limit the invention, and singular expressions include plural expressions unless the context clearly dictates otherwise.

Among the attached drawings, FIG. 2 is a schematic block diagram showing an electric boiler system having power generation means according to the present invention, and FIG. 3 is a schematic configuration diagram for explaining the second auxiliary power generation means shown in FIG. 2.

As shown in FIG. 2, the electric boiler system 100 having power generation means includes an electric storage device 110 for storing power supplied from an external power supply source 150, and an electric storage device 110 for storing power supplied from the external power supply source 150. It includes a heat medium boiler 120 that applies power to the heating element 122 to heat the heat medium oil 124A and raises the temperature of hot water and heating water with the heat medium 124. In addition, when the heat medium boiler 120 is not operating, it includes a power generation means 200A that operates with power supplied from the electric storage device 110 to generate electricity and stores the generated electricity in the electric storage device 110.

Let’s explain this in a more simple way.

The electric storage device (110 - Energy Storage System) temporarily stores power supplied from an external power source (150) consisting of a solar power generation device (150A) and/or an industrial or household outlet (150B) and supplies it to external users. It is configured to do so. Since this electric storage device 110 temporarily stores power, even if external power is cut off from the external power supply source 150 for various reasons (such as a power outage or breakdown), the heat medium boiler 120 maintains the electric storage device 110. It can operate smoothly within the allowable range.

The external power source 150 is for supplying external power to the electric boiler system 100. This external power source 150 may be composed of only a solar power generation device 150A, and may be an industrial or household power source, i.e. It may consist of only an industrial or household outlet (150B), or it may consist of a solar power generation device (150A) and an outlet (150B). In particular, in areas where late-night electricity is permitted, it is desirable to use an outlet (150B).

The electric boiler system 100 includes a control unit 140 . The control unit 140 receives power from the external power supply 150 when the voltage of the electric storage device 110 detected by the voltage meter 142 provided in the electric storage device 110 is lower than the set value, and is lower than the set value. If it is high, it is configured to cut off external power.

The heat medium boiler 120 includes a heat medium oil tank 124 in which heat medium oil 124A is stored, a heating water pipe 123A and a hot water pipe 123B piped to the heat medium oil tank 124, and a heat medium oil tank ( 124) It is composed of a heating element 122 installed inside. A latent heat material may be installed inside the heat medium oil tank 124. In another embodiment, the heating water pipe 123A and the hot water pipe 123B are not installed inside the heat medium oil tank 124, and separate heating water tanks and hot water tanks are configured to communicate with the heat medium oil tank 124, respectively. You can.

The above-described heat medium boiler 120 applies power supplied from the electric storage device 110 to the heating element 122 to heat the heat medium oil 124A, and raises the temperature of hot water and heating water with the raised heat medium oil 124A. It is composed of:

And, the heating element 122 of the heat medium boiler 120 is configured to generate heat by direct current. This is to keep the output of the heating element 122 constant and increase heating efficiency to reduce power consumption.

The electric boiler system 100 generates electricity by operating with power supplied from the electric storage device 110 when the heat medium boiler 120 is not operating, and the generated electricity is stored back in the electric storage device 110. 200A).

The power generation means 200A is designed to generate power using the power supplied from the electric storage device 110, and includes a drive motor 212 driven by power supplied from the electric storage device 110, and a drive motor 212. ) and is configured to include a generator 214 that is rotated and operated to generate electricity. This power generation means 200A generates power as a generator 214 as the drive motor 212 is driven, and serves to charge the electric storage device 110 with the generated electricity.

Meanwhile, the electric boiler system 100 controls the power supplied from the external power source 150 to the electric storage device 110, controls the heat medium boiler 120, and controls the power generation means 200A. 140).

The control unit 140 controls the power supplied from the external power supply source 150 based on the voltage of the electric storage device 110 detected by the voltage meter 142 of the electric storage device 110, and the heat medium boiler 120 It is configured to control the temperature sensor, heating element 122, pump, etc. provided in.

Meanwhile, when the generator 214 of the power generation means 200A is an alternating current generator, the electricity generated by the generator 214 is converted to direct current through a D.C. inverter and then charged to the electricity storage device 110. In addition, when the heat medium boiler 120 is configured as a boiler using alternating current electricity, it is provided with a DC inverter for converting the power supplied from the electric storage device 110 to the heat medium boiler 120 into alternating current.

The operation of the electric boiler system 100 having the power generation means configured as described above will be described.

As shown in FIG. 2, power supplied from an external power source 150 is charged to the electric storage device 110 and temporarily stored. At this time, the alternating current supplied from the outlet 150B is converted to direct current by a D.C. converter and then stored.

Then, when an operation signal for the heat medium boiler 120 is input, the control unit 140 supplies the power stored in the electric storage device 110 to the heat medium boiler 120 to generate heat in the heating element 122.

By heating the heating element 122, the heat medium oil 124A is heated to a set temperature, and the hot water and heating water are heated by the raised heat medium oil 124A. The heated water circulates into the heating space, and the hot water is supplied to the hot water users.

In this way, electricity generated during the day from the solar power generation device 150A and electricity supplied from the industrial or household outlet 150B are temporarily stored, and then power is supplied to the heat medium boiler 120 to operate, thereby saving energy. can do.

In particular, energy saving can be achieved by storing electricity generated from the solar power generation device 150A using solar energy, which is eco-friendly energy, in the electric storage device 110 and then operating the heat medium boiler 120 when necessary.

In addition, by providing the power generation means 200, when the heat medium boiler 120 is not operating, the generator 214 can be operated with the electricity stored in the electric storage device 110 to generate electricity, thereby saving energy. do.

Meanwhile, among the attached drawings, FIG. 3 is a schematic block diagram showing an electric boiler system with power generation means according to a second embodiment of the present invention, and FIG. 4 shows another embodiment of the auxiliary power generation means shown in FIG. 2. This is a schematic diagram for explanation.

As shown in FIGS. 3 and 4, an electric boiler system 100 according to another embodiment is the same as the above-described embodiment except that auxiliary power generation means 200B is provided. That is, it is the same as the above-described embodiment except that an auxiliary power generation means (200B) configured to generate power using the heat medium boiler 120 is provided.

The auxiliary power generation means 200B includes a first temporary storage tank 242 for receiving and temporarily storing heated heat medium oil from the heat medium boiler 120, and a first temporary storage tank 242 for receiving room temperature water from the heat medium boiler 120 and temporarily storing it. 2 Temporary storage tank 262, one side of which is exposed to the heat medium oil of the first temporary storage tank 242, and the other side is exposed to room temperature water of the second temporary storage tank 262, and electricity is generated by the temperature difference between the heat medium oil and room temperature water. It consists of a thermoelectric element 280 that generates. In this embodiment, the description will be made on the basis that heat medium oil heated to a high temperature by the heating element 122 is configured to circulate to the first temporary storage tank 242, and room temperature water is configured to circulate to the second temporary storage tank 262. Of course, it may be configured to circulate hot water into the first temporary storage tank 242 instead of heat medium oil.

The auxiliary power generation means (200B) that generates power using the heat medium boiler 120 includes a first circulation unit (H) for circulating heat medium oil to the first temporary storage tank 242, and a second temporary storage tank ( 262) and further provided with a second circulation unit (C) for circulation.

The first circulation unit (H) includes a first supply pipe (244A) and a first recovery pipe (244B) that connect the heat medium boiler 120 and the first temporary storage tank 242 and are provided with valves 241, and , a first temperature detection sensor 246 for detecting the temperature of the heat medium oil temporarily stored in the first temporary storage tank 242, and if the temperature of the heat medium oil detected by the first temperature detection sensor 246 is lower than the set temperature. It is configured to include a first circulation pump 248 for circulating heat medium oil heated by the heating element 122 of the heat medium boiler 120 to the first temporary storage tank 242. This first circulation unit (H) serves to maintain the temperature of the heat medium oil contained in the first temporary storage tank 242 at a set temperature.

The second circulation unit (C) includes a second supply pipe (264A) and a second recovery pipe (264B) that connect the heat medium boiler 120 and the second temporary storage tank 262 and are provided with valves 261. , a second temperature detection sensor 266 for detecting the temperature of the room temperature water temporarily stored in the second temporary storage tank 262, and if the temperature of the room temperature water detected by the second temperature detection sensor 266 is higher than the set temperature, the heat medium It is configured to include a second circulation pump 268 for circulating room temperature water from the boiler 120 to the second temporary storage tank 262. This second circulation unit (C) serves to maintain the temperature of the room temperature water stored in the second temporary storage tank 262 at a set temperature.

Meanwhile, the first temporary storage tank 242 of the first circulation part (H) and the second temporary storage tank 262 of the second circulation part (C) are also equipped with a water level sensor.

And, the first circulation unit (H) and the second circulation unit (C) are controlled by the control unit 140 described above. That is, the control unit 140 operates and controls the first and second circulation pumps (248,268) based on the temperatures detected by the first and second temperature sensors (246,266) to temporarily store them in the first and second temporary storage tanks (242,262). Ensure that the temperature of the heated heat medium oil and room temperature water is maintained at the set temperature.

Meanwhile, the room temperature water circulating in the second temporary storage tank 262 may be configured to be supplied and circulated from the room temperature water storage tank 127 provided in the heat medium boiler 120, and a water supply connection pipe connected to the heat medium boiler 120. It can be supplied from a branch pipe branched from, and in this case, room temperature water whose temperature is higher than the set value can be discharged to the outside or supplied as hot water or heating water.

In addition, in this embodiment, the description is based on circulating heat medium oil through the first circulation unit (H), but the present invention is not limited to this, and may be configured to circulate hot water whose temperature has been raised by the heat medium oil.

The thermoelectric element 280 is configured to generate electrical energy by the temperature difference between heat medium oil and room temperature water, and is an element designed to convert thermal energy into electrical energy. That is, the thermoelectric element 280 has a Seebeck effect that generates electricity when a temperature difference is applied to both ends of the element. As shown in FIG. 3, one side of this thermoelectric element 280 is installed in the first temporary storage tank 242 and exposed to the heated heat medium oil, and the other side is installed in the second temporary storage tank 262. exposed to room temperature water. Therefore, electricity is generated by the temperature difference between room temperature water and heat medium oil, which is heated to a temperature higher than that of room temperature water. Electricity generated by the thermoelectric element 280 is stored in the electricity storage device 110.

The auxiliary power generation means 200 according to another embodiment configured as described above is operated and controlled by the control unit 140.

To explain in more detail, it is as follows.

The heat medium oil is supplied to the first temporary storage tank 242 by the first circulation pump 248, and the heat medium oil is circulated according to the temperature of the heat medium oil detected by the first temperature sensor 246. That is, if the temperature of the heat medium oil temporarily stored in the first temporary storage tank 242 is lower than the set temperature, the heat medium oil in the heat medium boiler 120, which has a relatively high temperature, is circulated to the first temporary storage tank 242 to heat the first temporary storage tank 242. The temperature of the heat medium oil temporarily stored in the temporary storage tank 242 is maintained above the set temperature.

In addition, room temperature water is supplied to the second temporary storage tank 262 by the second circulation pump 268, and is circulated according to the temperature of the room temperature water detected by the second temperature sensor 266. That is, if the temperature of the room temperature water temporarily stored in the second temporary storage tank 262 is higher than the set temperature, the room temperature water in the heat medium boiler 120 or the room temperature water in the water pipe with a relatively low temperature is circulated to the second temporary storage tank 262. The temperature of the room temperature water temporarily stored in the second temporary storage tank 262 is maintained below the set temperature.

Maintaining the temperature of the heat medium oil accommodated in the first temporary storage tank 242 as high as possible and maintaining the temperature of the room temperature water accommodated in the second temporary storage tank 262 as low as possible is achieved by maintaining a large temperature on both sides of the thermoelectric element 280. It is to give a difference. That is, in a state where one end of the thermoelectric element 280 is exposed and in contact with heat medium oil and the other end is exposed and in contact with room temperature water, the larger the temperature difference between the heat medium oil and room temperature, the more the thermoelectric element 280 converts heat energy into electrical energy. This is because efficiency improves.

Through the above-described process, the electric energy converted from the heat energy generated in the heat medium boiler 120 is stored (charged) in the electric storage device 110.

In this way, energy can be saved by converting the heat energy generated in the heat medium boiler 120 into electric energy and storing it in the electric storage device 110.

Among the attached drawings, FIG. 5 is a schematic configuration diagram for explaining another embodiment of the auxiliary power generation means shown in FIG. 3.

As shown in FIG. 5, the auxiliary power generation means (200C) according to another embodiment is configured to generate power using the temperature difference between the heat medium oil of the heat medium boiler 120 and the room temperature water, and the heat medium boiler 120 Or a third temporary storage tank (262A) for temporarily storing room temperature water supplied from a water pipe, and a heat medium oil tank disposed between the third temporary storage tank (262A) and the heat medium oil tank 128 of the heat medium boiler 120. An insulator 290 to prevent the heat from 128 from being transferred to the third temporary storage tank 262A, one side is located in the third temporary storage tank 262A and is exposed to room temperature water, and the other side is heat medium oil. Except that it is configured to include a thermoelectric element 280 installed in the insulator 290 so as to be located in the tank 128 and exposed to the heat medium oil 124A to generate electricity by the temperature difference between room temperature water and the heat medium oil. Same as one embodiment.

At this time, the third temporary storage tank 262A may be connected to a water pipe and configured to continuously circulate room temperature water, and for this purpose, a circulation pump may be provided.

In this way, electrical energy can be saved by converting the thermal energy generated in the heat medium boiler 120 into electrical energy and generating electricity using the thermoelectric element 280.

Although specific embodiments of the present invention have been described and shown above, it is known in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. This is self-evident to those who have it. Accordingly, such modifications or variations should not be understood individually from the technical idea or viewpoint of the present invention, and the modified embodiments should be regarded as falling within the scope of the claims of the present invention.

100: Electric boiler system 110: Electric storage device
120: heat medium boiler 122: heating element
124: heat medium oil 128: heat medium tank
140: Control unit 200: Auxiliary power generation means
242: 1st temporary storage tank 244A: 1st supply pipe
244B: first recovery pipe 246: first temperature sensor
248: first circulation pump 262: second temporary storage tank
264A: second supply pipe 264B: second recovery pipe
266: second temperature sensor 268: second circulation pump
280: thermoelectric element 290: insulator
262A: Third temporary storage tank H: First circulation section
C: second circulation section

Claims (7)

An electric storage device for storing power supplied from an external power source; And a heat medium boiler configured to apply power supplied from the electric storage device to a heating element to heat heat medium oil and raise the temperature of hot water and heating water with the heat medium oil,
When the heat medium boiler is not operating, auxiliary power generation means is provided to generate electricity by operating with power supplied from the electric storage device and store the produced electricity in the electric storage device,
The auxiliary power generation means is,
When the heat medium oil is heated by the operation of the heat medium boiler, the heat energy of the heat medium oil is converted into electrical energy and stored in the electric storage device, and the heat of the heat medium oil raised in the heat medium boiler is used to generate power,
a first temporary storage tank for temporarily storing the heated heat medium oil supplied from the heat medium boiler; a second temporary storage tank for temporarily storing room temperature water supplied from the heat medium boiler; And one side is exposed to the heat medium oil of the first temporary storage tank, and the other side is exposed to room temperature water in the second temporary storage tank, and consists of a thermoelectric element that generates electricity by the temperature difference between the heat medium oil and the room temperature water,
The auxiliary power generation means is,
A first supply pipe and a first recovery pipe connected to the heat medium boiler and the first temporary storage tank and provided with valves, and a first temperature sensor for detecting the temperature of heat medium oil temporarily accommodated in the first temporary storage tank. A first circulation unit including a sensor and a first circulation pump for circulating the heat medium oil of the heat medium boiler to the first temporary storage tank when the temperature of the heat medium oil detected by the first temperature sensor is lower than the set temperature; and a second supply pipe and a second return pipe connected to the heat medium boiler and the second temporary storage tank and provided with valves, and a second temperature for detecting the temperature of room temperature water temporarily accommodated in the second temporary storage tank. A second circulation unit including a detection sensor and a second circulation pump for circulating the room temperature water of the heat medium boiler to the second temporary storage tank when the temperature of the room temperature water detected by the second temperature detection sensor is higher than the set temperature. Characterized in that it consists of,
An electric boiler system with means of generating power. According to paragraph 1,
The means of power generation is,
a driving motor driven by power applied from the electric storage device; and
Including a generator that is rotated by the drive motor to generate electricity,
Characterized in that it is configured to generate power using power applied from the electric storage device,
An electric boiler system with means of generating power. delete delete delete delete According to paragraph 1,
The external power supply is,
Characterized by consisting of a solar power generation device and an industrial or household outlet,
An electric boiler system with means of generating power.

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